4529 changed files with 315 additions and 958282 deletions
@ -1,6 +0,0 @@
|
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*.iml |
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.idea/ |
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.DS_Store |
||||
.project |
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.classpath |
||||
*.gradle |
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@ -1,2 +0,0 @@
|
||||
1.`fine-antlr-old`是为了与`fine-antlr4`区别开，<br> |
||||
2.源码地址https://cloud.finedevelop.com/projects/PF/repos/thirdtools/browse |
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@ -1,18 +0,0 @@
|
||||
<?xml version="1.0" encoding="UTF-8"?> |
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<project xmlns="http://maven.apache.org/POM/4.0.0" |
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" |
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> |
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<modelVersion>4.0.0</modelVersion> |
||||
|
||||
<parent> |
||||
<groupId>com.fr.third</groupId> |
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<artifactId>step1</artifactId> |
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<version>${revision}</version> |
||||
<relativePath>../base-third-project/base-third-step1</relativePath> |
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</parent> |
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|
||||
<artifactId>fine-antlr-old</artifactId> |
||||
<version>${revision}</version> |
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|
||||
|
||||
</project> |
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@ -1,26 +0,0 @@
|
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package com.fr.third.antlr; |
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|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/ANTLRError.java#2 $
|
||||
*/ |
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|
||||
public class ANTLRError extends Error { |
||||
|
||||
/** |
||||
* ANTLRError constructor comment. |
||||
*/ |
||||
public ANTLRError() { |
||||
super(); |
||||
} |
||||
|
||||
/** |
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* ANTLRError constructor comment. |
||||
* @param s java.lang.String |
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*/ |
||||
public ANTLRError(String s) { |
||||
super(s); |
||||
} |
||||
} |
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@ -1,27 +0,0 @@
|
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package com.fr.third.antlr; |
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|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/ANTLRException.java#2 $
|
||||
*/ |
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|
||||
public class ANTLRException extends Exception { |
||||
|
||||
public ANTLRException() { |
||||
super(); |
||||
} |
||||
|
||||
public ANTLRException(String s) { |
||||
super(s); |
||||
} |
||||
|
||||
public ANTLRException(String message, Throwable cause) { |
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super(message, cause); |
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} |
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|
||||
public ANTLRException(Throwable cause) { |
||||
super(cause); |
||||
} |
||||
} |
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@ -1,124 +0,0 @@
|
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package com.fr.third.antlr; |
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|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/ANTLRGrammarParseBehavior.java#2 $
|
||||
*/ |
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|
||||
import com.fr.third.antlr.collections.impl.BitSet; |
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|
||||
public interface ANTLRGrammarParseBehavior { |
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public void abortGrammar(); |
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|
||||
public void beginAlt(boolean doAST_); |
||||
|
||||
public void beginChildList(); |
||||
|
||||
// Exception handling
|
||||
public void beginExceptionGroup(); |
||||
|
||||
public void beginExceptionSpec(Token label); |
||||
|
||||
public void beginSubRule(Token label, Token start, boolean not); |
||||
|
||||
// Trees
|
||||
public void beginTree(Token tok) throws SemanticException; |
||||
|
||||
public void defineRuleName(Token r, String access, boolean ruleAST, String docComment) throws SemanticException; |
||||
|
||||
public void defineToken(Token tokname, Token tokliteral); |
||||
|
||||
public void endAlt(); |
||||
|
||||
public void endChildList(); |
||||
|
||||
public void endExceptionGroup(); |
||||
|
||||
public void endExceptionSpec(); |
||||
|
||||
public void endGrammar(); |
||||
|
||||
public void endOptions(); |
||||
|
||||
public void endRule(String r); |
||||
|
||||
public void endSubRule(); |
||||
|
||||
public void endTree(); |
||||
|
||||
public void hasError(); |
||||
|
||||
public void noASTSubRule(); |
||||
|
||||
public void oneOrMoreSubRule(); |
||||
|
||||
public void optionalSubRule(); |
||||
|
||||
public void refAction(Token action); |
||||
|
||||
public void refArgAction(Token action); |
||||
|
||||
public void setUserExceptions(String thr); |
||||
|
||||
public void refCharLiteral(Token lit, Token label, boolean inverted, int autoGenType, boolean lastInRule); |
||||
|
||||
public void refCharRange(Token t1, Token t2, Token label, int autoGenType, boolean lastInRule); |
||||
|
||||
public void refElementOption(Token option, Token value); |
||||
|
||||
public void refTokensSpecElementOption(Token tok, Token option, Token value); |
||||
|
||||
public void refExceptionHandler(Token exTypeAndName, Token action); |
||||
|
||||
public void refHeaderAction(Token name, Token act); |
||||
|
||||
public void refInitAction(Token action); |
||||
|
||||
public void refMemberAction(Token act); |
||||
|
||||
public void refPreambleAction(Token act); |
||||
|
||||
public void refReturnAction(Token returnAction); |
||||
|
||||
public void refRule(Token idAssign, Token r, Token label, Token arg, int autoGenType); |
||||
|
||||
public void refSemPred(Token pred); |
||||
|
||||
public void refStringLiteral(Token lit, Token label, int autoGenType, boolean lastInRule); |
||||
|
||||
public void refToken(Token assignId, Token t, Token label, Token args, |
||||
boolean inverted, int autoGenType, boolean lastInRule); |
||||
|
||||
public void refTokenRange(Token t1, Token t2, Token label, int autoGenType, boolean lastInRule); |
||||
|
||||
// Tree specifiers
|
||||
public void refTreeSpecifier(Token treeSpec); |
||||
|
||||
public void refWildcard(Token t, Token label, int autoGenType); |
||||
|
||||
public void setArgOfRuleRef(Token argaction); |
||||
|
||||
public void setCharVocabulary(BitSet b); |
||||
|
||||
// Options
|
||||
public void setFileOption(Token key, Token value, String filename); |
||||
|
||||
public void setGrammarOption(Token key, Token value); |
||||
|
||||
public void setRuleOption(Token key, Token value); |
||||
|
||||
public void setSubruleOption(Token key, Token value); |
||||
|
||||
public void startLexer(String file, Token name, String superClass, String doc); |
||||
|
||||
// Flow control for grammars
|
||||
public void startParser(String file, Token name, String superClass, String doc); |
||||
|
||||
public void startTreeWalker(String file, Token name, String superClass, String doc); |
||||
|
||||
public void synPred(); |
||||
|
||||
public void zeroOrMoreSubRule(); |
||||
} |
||||
@ -1,107 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/ANTLRHashString.java#2 $
|
||||
*/ |
||||
|
||||
// class implements a String-like object whose sole purpose is to be
|
||||
// entered into a lexer HashTable. It uses a lexer object to get
|
||||
// information about case sensitivity.
|
||||
|
||||
public class ANTLRHashString { |
||||
// only one of s or buf is non-null
|
||||
private String s; |
||||
private char[] buf; |
||||
private int len; |
||||
private CharScanner lexer; |
||||
private static final int prime = 151; |
||||
|
||||
|
||||
public ANTLRHashString(char[] buf, int length, CharScanner lexer) { |
||||
this.lexer = lexer; |
||||
setBuffer(buf, length); |
||||
} |
||||
|
||||
// Hash strings constructed this way are unusable until setBuffer or setString are called.
|
||||
public ANTLRHashString(CharScanner lexer) { |
||||
this.lexer = lexer; |
||||
} |
||||
|
||||
public ANTLRHashString(String s, CharScanner lexer) { |
||||
this.lexer = lexer; |
||||
setString(s); |
||||
} |
||||
|
||||
private final char charAt(int index) { |
||||
return (s != null) ? s.charAt(index) : buf[index]; |
||||
} |
||||
|
||||
// Return true if o is an ANTLRHashString equal to this.
|
||||
public boolean equals(Object o) { |
||||
if (!(o instanceof ANTLRHashString) && !(o instanceof String)) { |
||||
return false; |
||||
} |
||||
|
||||
ANTLRHashString s; |
||||
if (o instanceof String) { |
||||
s = new ANTLRHashString((String)o, lexer); |
||||
} |
||||
else { |
||||
s = (ANTLRHashString)o; |
||||
} |
||||
int l = length(); |
||||
if (s.length() != l) { |
||||
return false; |
||||
} |
||||
if (lexer.getCaseSensitiveLiterals()) { |
||||
for (int i = 0; i < l; i++) { |
||||
if (charAt(i) != s.charAt(i)) { |
||||
return false; |
||||
} |
||||
} |
||||
} |
||||
else { |
||||
for (int i = 0; i < l; i++) { |
||||
if (lexer.toLower(charAt(i)) != lexer.toLower(s.charAt(i))) { |
||||
return false; |
||||
} |
||||
} |
||||
} |
||||
return true; |
||||
} |
||||
|
||||
public int hashCode() { |
||||
int hashval = 0; |
||||
int l = length(); |
||||
|
||||
if (lexer.getCaseSensitiveLiterals()) { |
||||
for (int i = 0; i < l; i++) { |
||||
hashval = hashval * prime + charAt(i); |
||||
} |
||||
} |
||||
else { |
||||
for (int i = 0; i < l; i++) { |
||||
hashval = hashval * prime + lexer.toLower(charAt(i)); |
||||
} |
||||
} |
||||
return hashval; |
||||
} |
||||
|
||||
private final int length() { |
||||
return (s != null) ? s.length() : len; |
||||
} |
||||
|
||||
public void setBuffer(char[] buf, int length) { |
||||
this.buf = buf; |
||||
this.len = length; |
||||
s = null; |
||||
} |
||||
|
||||
public void setString(String s) { |
||||
this.s = s; |
||||
buf = null; |
||||
} |
||||
} |
||||
File diff suppressed because it is too large
Load Diff
File diff suppressed because it is too large
Load Diff
@ -1,82 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/ANTLRStringBuffer.java#2 $
|
||||
*/ |
||||
|
||||
// Implementation of a StringBuffer-like object that does not have the
|
||||
// unfortunate side-effect of creating Strings with very large buffers.
|
||||
|
||||
public class ANTLRStringBuffer { |
||||
protected char[] buffer = null; |
||||
protected int length = 0; // length and also where to store next char
|
||||
|
||||
|
||||
public ANTLRStringBuffer() { |
||||
buffer = new char[50]; |
||||
} |
||||
|
||||
public ANTLRStringBuffer(int n) { |
||||
buffer = new char[n]; |
||||
} |
||||
|
||||
public final void append(char c) { |
||||
// This would normally be an "ensureCapacity" method, but inlined
|
||||
// here for speed.
|
||||
if (length >= buffer.length) { |
||||
// Compute a new length that is at least double old length
|
||||
int newSize = buffer.length; |
||||
while (length >= newSize) { |
||||
newSize *= 2; |
||||
} |
||||
// Allocate new array and copy buffer
|
||||
char[] newBuffer = new char[newSize]; |
||||
for (int i = 0; i < length; i++) { |
||||
newBuffer[i] = buffer[i]; |
||||
} |
||||
buffer = newBuffer; |
||||
} |
||||
buffer[length] = c; |
||||
length++; |
||||
} |
||||
|
||||
public final void append(String s) { |
||||
for (int i = 0; i < s.length(); i++) { |
||||
append(s.charAt(i)); |
||||
} |
||||
} |
||||
|
||||
public final char charAt(int index) { |
||||
return buffer[index]; |
||||
} |
||||
|
||||
final public char[] getBuffer() { |
||||
return buffer; |
||||
} |
||||
|
||||
public final int length() { |
||||
return length; |
||||
} |
||||
|
||||
public final void setCharAt(int index, char ch) { |
||||
buffer[index] = ch; |
||||
} |
||||
|
||||
public final void setLength(int newLength) { |
||||
if (newLength < length) { |
||||
length = newLength; |
||||
} |
||||
else { |
||||
while (newLength > length) { |
||||
append('\0'); |
||||
} |
||||
} |
||||
} |
||||
|
||||
public final String toString() { |
||||
return new String(buffer, 0, length); |
||||
} |
||||
} |
||||
@ -1,647 +0,0 @@
|
||||
// $ANTLR : "tokdef.g" -> "ANTLRTokdefLexer.java"$
|
||||
package com.fr.third.antlr; |
||||
import java.io.InputStream; |
||||
import java.io.Reader; |
||||
import java.util.Hashtable; |
||||
|
||||
import com.fr.third.antlr.collections.impl.BitSet; |
||||
|
||||
|
||||
public class ANTLRTokdefLexer extends com.fr.third.antlr.CharScanner implements ANTLRTokdefParserTokenTypes, TokenStream |
||||
{ |
||||
public ANTLRTokdefLexer(InputStream in) { |
||||
this(new ByteBuffer(in)); |
||||
} |
||||
public ANTLRTokdefLexer(Reader in) { |
||||
this(new CharBuffer(in)); |
||||
} |
||||
public ANTLRTokdefLexer(InputBuffer ib) { |
||||
this(new LexerSharedInputState(ib)); |
||||
} |
||||
public ANTLRTokdefLexer(LexerSharedInputState state) { |
||||
super(state); |
||||
caseSensitiveLiterals = true; |
||||
setCaseSensitive(true); |
||||
literals = new Hashtable(); |
||||
} |
||||
|
||||
public Token nextToken() throws TokenStreamException { |
||||
Token theRetToken=null; |
||||
tryAgain: |
||||
for (;;) { |
||||
Token _token = null; |
||||
int _ttype = Token.INVALID_TYPE; |
||||
resetText(); |
||||
try { // for char stream error handling
|
||||
try { // for lexical error handling
|
||||
switch ( LA(1)) { |
||||
case '\t': case '\n': case '\r': case ' ': |
||||
{ |
||||
mWS(true); |
||||
theRetToken=_returnToken; |
||||
break; |
||||
} |
||||
case '(': |
||||
{ |
||||
mLPAREN(true); |
||||
theRetToken=_returnToken; |
||||
break; |
||||
} |
||||
case ')': |
||||
{ |
||||
mRPAREN(true); |
||||
theRetToken=_returnToken; |
||||
break; |
||||
} |
||||
case '=': |
||||
{ |
||||
mASSIGN(true); |
||||
theRetToken=_returnToken; |
||||
break; |
||||
} |
||||
case '"': |
||||
{ |
||||
mSTRING(true); |
||||
theRetToken=_returnToken; |
||||
break; |
||||
} |
||||
case 'A': case 'B': case 'C': case 'D': |
||||
case 'E': case 'F': case 'G': case 'H': |
||||
case 'I': case 'J': case 'K': case 'L': |
||||
case 'M': case 'N': case 'O': case 'P': |
||||
case 'Q': case 'R': case 'S': case 'T': |
||||
case 'U': case 'V': case 'W': case 'X': |
||||
case 'Y': case 'Z': case 'a': case 'b': |
||||
case 'c': case 'd': case 'e': case 'f': |
||||
case 'g': case 'h': case 'i': case 'j': |
||||
case 'k': case 'l': case 'm': case 'n': |
||||
case 'o': case 'p': case 'q': case 'r': |
||||
case 's': case 't': case 'u': case 'v': |
||||
case 'w': case 'x': case 'y': case 'z': |
||||
{ |
||||
mID(true); |
||||
theRetToken=_returnToken; |
||||
break; |
||||
} |
||||
case '0': case '1': case '2': case '3': |
||||
case '4': case '5': case '6': case '7': |
||||
case '8': case '9': |
||||
{ |
||||
mINT(true); |
||||
theRetToken=_returnToken; |
||||
break; |
||||
} |
||||
default: |
||||
if ((LA(1)=='/') && (LA(2)=='/')) { |
||||
mSL_COMMENT(true); |
||||
theRetToken=_returnToken; |
||||
} |
||||
else if ((LA(1)=='/') && (LA(2)=='*')) { |
||||
mML_COMMENT(true); |
||||
theRetToken=_returnToken; |
||||
} |
||||
else { |
||||
if (LA(1)==EOF_CHAR) {uponEOF(); _returnToken = makeToken(Token.EOF_TYPE);} |
||||
else {throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine(), getColumn());} |
||||
} |
||||
} |
||||
if ( _returnToken==null ) continue tryAgain; // found SKIP token
|
||||
_ttype = _returnToken.getType(); |
||||
_returnToken.setType(_ttype); |
||||
return _returnToken; |
||||
} |
||||
catch (RecognitionException e) { |
||||
throw new TokenStreamRecognitionException(e); |
||||
} |
||||
} |
||||
catch (CharStreamException cse) { |
||||
if ( cse instanceof CharStreamIOException ) { |
||||
throw new TokenStreamIOException(((CharStreamIOException)cse).io); |
||||
} |
||||
else { |
||||
throw new TokenStreamException(cse.getMessage()); |
||||
} |
||||
} |
||||
} |
||||
} |
||||
|
||||
public final void mWS(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException { |
||||
int _ttype; Token _token=null; int _begin=text.length(); |
||||
_ttype = WS; |
||||
int _saveIndex; |
||||
|
||||
{ |
||||
switch ( LA(1)) { |
||||
case ' ': |
||||
{ |
||||
match(' '); |
||||
break; |
||||
} |
||||
case '\t': |
||||
{ |
||||
match('\t'); |
||||
break; |
||||
} |
||||
case '\r': |
||||
{ |
||||
match('\r'); |
||||
{ |
||||
if ((LA(1)=='\n')) { |
||||
match('\n'); |
||||
} |
||||
else { |
||||
} |
||||
|
||||
} |
||||
newline(); |
||||
break; |
||||
} |
||||
case '\n': |
||||
{ |
||||
match('\n'); |
||||
newline(); |
||||
break; |
||||
} |
||||
default: |
||||
{ |
||||
throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine(), getColumn()); |
||||
} |
||||
} |
||||
} |
||||
_ttype = Token.SKIP; |
||||
if ( _createToken && _token==null && _ttype!=Token.SKIP ) { |
||||
_token = makeToken(_ttype); |
||||
_token.setText(new String(text.getBuffer(), _begin, text.length()-_begin)); |
||||
} |
||||
_returnToken = _token; |
||||
} |
||||
|
||||
public final void mSL_COMMENT(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException { |
||||
int _ttype; Token _token=null; int _begin=text.length(); |
||||
_ttype = SL_COMMENT; |
||||
int _saveIndex; |
||||
|
||||
match("//"); |
||||
{ |
||||
_loop234: |
||||
do { |
||||
if ((_tokenSet_0.member(LA(1)))) { |
||||
{ |
||||
match(_tokenSet_0); |
||||
} |
||||
} |
||||
else { |
||||
break _loop234; |
||||
} |
||||
|
||||
} while (true); |
||||
} |
||||
{ |
||||
switch ( LA(1)) { |
||||
case '\n': |
||||
{ |
||||
match('\n'); |
||||
break; |
||||
} |
||||
case '\r': |
||||
{ |
||||
match('\r'); |
||||
{ |
||||
if ((LA(1)=='\n')) { |
||||
match('\n'); |
||||
} |
||||
else { |
||||
} |
||||
|
||||
} |
||||
break; |
||||
} |
||||
default: |
||||
{ |
||||
throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine(), getColumn()); |
||||
} |
||||
} |
||||
} |
||||
_ttype = Token.SKIP; newline(); |
||||
if ( _createToken && _token==null && _ttype!=Token.SKIP ) { |
||||
_token = makeToken(_ttype); |
||||
_token.setText(new String(text.getBuffer(), _begin, text.length()-_begin)); |
||||
} |
||||
_returnToken = _token; |
||||
} |
||||
|
||||
public final void mML_COMMENT(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException { |
||||
int _ttype; Token _token=null; int _begin=text.length(); |
||||
_ttype = ML_COMMENT; |
||||
int _saveIndex; |
||||
|
||||
match("/*"); |
||||
{ |
||||
_loop239: |
||||
do { |
||||
if ((LA(1)=='*') && (_tokenSet_1.member(LA(2)))) { |
||||
match('*'); |
||||
matchNot('/'); |
||||
} |
||||
else if ((LA(1)=='\n')) { |
||||
match('\n'); |
||||
newline(); |
||||
} |
||||
else if ((_tokenSet_2.member(LA(1)))) { |
||||
matchNot('*'); |
||||
} |
||||
else { |
||||
break _loop239; |
||||
} |
||||
|
||||
} while (true); |
||||
} |
||||
match("*/"); |
||||
_ttype = Token.SKIP; |
||||
if ( _createToken && _token==null && _ttype!=Token.SKIP ) { |
||||
_token = makeToken(_ttype); |
||||
_token.setText(new String(text.getBuffer(), _begin, text.length()-_begin)); |
||||
} |
||||
_returnToken = _token; |
||||
} |
||||
|
||||
public final void mLPAREN(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException { |
||||
int _ttype; Token _token=null; int _begin=text.length(); |
||||
_ttype = LPAREN; |
||||
int _saveIndex; |
||||
|
||||
match('('); |
||||
if ( _createToken && _token==null && _ttype!=Token.SKIP ) { |
||||
_token = makeToken(_ttype); |
||||
_token.setText(new String(text.getBuffer(), _begin, text.length()-_begin)); |
||||
} |
||||
_returnToken = _token; |
||||
} |
||||
|
||||
public final void mRPAREN(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException { |
||||
int _ttype; Token _token=null; int _begin=text.length(); |
||||
_ttype = RPAREN; |
||||
int _saveIndex; |
||||
|
||||
match(')'); |
||||
if ( _createToken && _token==null && _ttype!=Token.SKIP ) { |
||||
_token = makeToken(_ttype); |
||||
_token.setText(new String(text.getBuffer(), _begin, text.length()-_begin)); |
||||
} |
||||
_returnToken = _token; |
||||
} |
||||
|
||||
public final void mASSIGN(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException { |
||||
int _ttype; Token _token=null; int _begin=text.length(); |
||||
_ttype = ASSIGN; |
||||
int _saveIndex; |
||||
|
||||
match('='); |
||||
if ( _createToken && _token==null && _ttype!=Token.SKIP ) { |
||||
_token = makeToken(_ttype); |
||||
_token.setText(new String(text.getBuffer(), _begin, text.length()-_begin)); |
||||
} |
||||
_returnToken = _token; |
||||
} |
||||
|
||||
public final void mSTRING(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException { |
||||
int _ttype; Token _token=null; int _begin=text.length(); |
||||
_ttype = STRING; |
||||
int _saveIndex; |
||||
|
||||
match('"'); |
||||
{ |
||||
_loop245: |
||||
do { |
||||
if ((LA(1)=='\\')) { |
||||
mESC(false); |
||||
} |
||||
else if ((_tokenSet_3.member(LA(1)))) { |
||||
matchNot('"'); |
||||
} |
||||
else { |
||||
break _loop245; |
||||
} |
||||
|
||||
} while (true); |
||||
} |
||||
match('"'); |
||||
if ( _createToken && _token==null && _ttype!=Token.SKIP ) { |
||||
_token = makeToken(_ttype); |
||||
_token.setText(new String(text.getBuffer(), _begin, text.length()-_begin)); |
||||
} |
||||
_returnToken = _token; |
||||
} |
||||
|
||||
protected final void mESC(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException { |
||||
int _ttype; Token _token=null; int _begin=text.length(); |
||||
_ttype = ESC; |
||||
int _saveIndex; |
||||
|
||||
match('\\'); |
||||
{ |
||||
switch ( LA(1)) { |
||||
case 'n': |
||||
{ |
||||
match('n'); |
||||
break; |
||||
} |
||||
case 'r': |
||||
{ |
||||
match('r'); |
||||
break; |
||||
} |
||||
case 't': |
||||
{ |
||||
match('t'); |
||||
break; |
||||
} |
||||
case 'b': |
||||
{ |
||||
match('b'); |
||||
break; |
||||
} |
||||
case 'f': |
||||
{ |
||||
match('f'); |
||||
break; |
||||
} |
||||
case '"': |
||||
{ |
||||
match('"'); |
||||
break; |
||||
} |
||||
case '\'': |
||||
{ |
||||
match('\''); |
||||
break; |
||||
} |
||||
case '\\': |
||||
{ |
||||
match('\\'); |
||||
break; |
||||
} |
||||
case '0': case '1': case '2': case '3': |
||||
{ |
||||
{ |
||||
matchRange('0','3'); |
||||
} |
||||
{ |
||||
if (((LA(1) >= '0' && LA(1) <= '9')) && ((LA(2) >= '\u0003' && LA(2) <= '\u00ff'))) { |
||||
mDIGIT(false); |
||||
{ |
||||
if (((LA(1) >= '0' && LA(1) <= '9')) && ((LA(2) >= '\u0003' && LA(2) <= '\u00ff'))) { |
||||
mDIGIT(false); |
||||
} |
||||
else if (((LA(1) >= '\u0003' && LA(1) <= '\u00ff')) && (true)) { |
||||
} |
||||
else { |
||||
throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine(), getColumn()); |
||||
} |
||||
|
||||
} |
||||
} |
||||
else if (((LA(1) >= '\u0003' && LA(1) <= '\u00ff')) && (true)) { |
||||
} |
||||
else { |
||||
throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine(), getColumn()); |
||||
} |
||||
|
||||
} |
||||
break; |
||||
} |
||||
case '4': case '5': case '6': case '7': |
||||
{ |
||||
{ |
||||
matchRange('4','7'); |
||||
} |
||||
{ |
||||
if (((LA(1) >= '0' && LA(1) <= '9')) && ((LA(2) >= '\u0003' && LA(2) <= '\u00ff'))) { |
||||
mDIGIT(false); |
||||
} |
||||
else if (((LA(1) >= '\u0003' && LA(1) <= '\u00ff')) && (true)) { |
||||
} |
||||
else { |
||||
throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine(), getColumn()); |
||||
} |
||||
|
||||
} |
||||
break; |
||||
} |
||||
case 'u': |
||||
{ |
||||
match('u'); |
||||
mXDIGIT(false); |
||||
mXDIGIT(false); |
||||
mXDIGIT(false); |
||||
mXDIGIT(false); |
||||
break; |
||||
} |
||||
default: |
||||
{ |
||||
throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine(), getColumn()); |
||||
} |
||||
} |
||||
} |
||||
if ( _createToken && _token==null && _ttype!=Token.SKIP ) { |
||||
_token = makeToken(_ttype); |
||||
_token.setText(new String(text.getBuffer(), _begin, text.length()-_begin)); |
||||
} |
||||
_returnToken = _token; |
||||
} |
||||
|
||||
protected final void mDIGIT(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException { |
||||
int _ttype; Token _token=null; int _begin=text.length(); |
||||
_ttype = DIGIT; |
||||
int _saveIndex; |
||||
|
||||
matchRange('0','9'); |
||||
if ( _createToken && _token==null && _ttype!=Token.SKIP ) { |
||||
_token = makeToken(_ttype); |
||||
_token.setText(new String(text.getBuffer(), _begin, text.length()-_begin)); |
||||
} |
||||
_returnToken = _token; |
||||
} |
||||
|
||||
protected final void mXDIGIT(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException { |
||||
int _ttype; Token _token=null; int _begin=text.length(); |
||||
_ttype = XDIGIT; |
||||
int _saveIndex; |
||||
|
||||
switch ( LA(1)) { |
||||
case '0': case '1': case '2': case '3': |
||||
case '4': case '5': case '6': case '7': |
||||
case '8': case '9': |
||||
{ |
||||
matchRange('0','9'); |
||||
break; |
||||
} |
||||
case 'a': case 'b': case 'c': case 'd': |
||||
case 'e': case 'f': |
||||
{ |
||||
matchRange('a','f'); |
||||
break; |
||||
} |
||||
case 'A': case 'B': case 'C': case 'D': |
||||
case 'E': case 'F': |
||||
{ |
||||
matchRange('A','F'); |
||||
break; |
||||
} |
||||
default: |
||||
{ |
||||
throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine(), getColumn()); |
||||
} |
||||
} |
||||
if ( _createToken && _token==null && _ttype!=Token.SKIP ) { |
||||
_token = makeToken(_ttype); |
||||
_token.setText(new String(text.getBuffer(), _begin, text.length()-_begin)); |
||||
} |
||||
_returnToken = _token; |
||||
} |
||||
|
||||
public final void mID(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException { |
||||
int _ttype; Token _token=null; int _begin=text.length(); |
||||
_ttype = ID; |
||||
int _saveIndex; |
||||
|
||||
{ |
||||
switch ( LA(1)) { |
||||
case 'a': case 'b': case 'c': case 'd': |
||||
case 'e': case 'f': case 'g': case 'h': |
||||
case 'i': case 'j': case 'k': case 'l': |
||||
case 'm': case 'n': case 'o': case 'p': |
||||
case 'q': case 'r': case 's': case 't': |
||||
case 'u': case 'v': case 'w': case 'x': |
||||
case 'y': case 'z': |
||||
{ |
||||
matchRange('a','z'); |
||||
break; |
||||
} |
||||
case 'A': case 'B': case 'C': case 'D': |
||||
case 'E': case 'F': case 'G': case 'H': |
||||
case 'I': case 'J': case 'K': case 'L': |
||||
case 'M': case 'N': case 'O': case 'P': |
||||
case 'Q': case 'R': case 'S': case 'T': |
||||
case 'U': case 'V': case 'W': case 'X': |
||||
case 'Y': case 'Z': |
||||
{ |
||||
matchRange('A','Z'); |
||||
break; |
||||
} |
||||
default: |
||||
{ |
||||
throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine(), getColumn()); |
||||
} |
||||
} |
||||
} |
||||
{ |
||||
_loop258: |
||||
do { |
||||
switch ( LA(1)) { |
||||
case 'a': case 'b': case 'c': case 'd': |
||||
case 'e': case 'f': case 'g': case 'h': |
||||
case 'i': case 'j': case 'k': case 'l': |
||||
case 'm': case 'n': case 'o': case 'p': |
||||
case 'q': case 'r': case 's': case 't': |
||||
case 'u': case 'v': case 'w': case 'x': |
||||
case 'y': case 'z': |
||||
{ |
||||
matchRange('a','z'); |
||||
break; |
||||
} |
||||
case 'A': case 'B': case 'C': case 'D': |
||||
case 'E': case 'F': case 'G': case 'H': |
||||
case 'I': case 'J': case 'K': case 'L': |
||||
case 'M': case 'N': case 'O': case 'P': |
||||
case 'Q': case 'R': case 'S': case 'T': |
||||
case 'U': case 'V': case 'W': case 'X': |
||||
case 'Y': case 'Z': |
||||
{ |
||||
matchRange('A','Z'); |
||||
break; |
||||
} |
||||
case '_': |
||||
{ |
||||
match('_'); |
||||
break; |
||||
} |
||||
case '0': case '1': case '2': case '3': |
||||
case '4': case '5': case '6': case '7': |
||||
case '8': case '9': |
||||
{ |
||||
matchRange('0','9'); |
||||
break; |
||||
} |
||||
default: |
||||
{ |
||||
break _loop258; |
||||
} |
||||
} |
||||
} while (true); |
||||
} |
||||
if ( _createToken && _token==null && _ttype!=Token.SKIP ) { |
||||
_token = makeToken(_ttype); |
||||
_token.setText(new String(text.getBuffer(), _begin, text.length()-_begin)); |
||||
} |
||||
_returnToken = _token; |
||||
} |
||||
|
||||
public final void mINT(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException { |
||||
int _ttype; Token _token=null; int _begin=text.length(); |
||||
_ttype = INT; |
||||
int _saveIndex; |
||||
|
||||
{ |
||||
int _cnt261=0; |
||||
_loop261: |
||||
do { |
||||
if (((LA(1) >= '0' && LA(1) <= '9'))) { |
||||
mDIGIT(false); |
||||
} |
||||
else { |
||||
if ( _cnt261>=1 ) { break _loop261; } else {throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine(), getColumn());} |
||||
} |
||||
|
||||
_cnt261++; |
||||
} while (true); |
||||
} |
||||
if ( _createToken && _token==null && _ttype!=Token.SKIP ) { |
||||
_token = makeToken(_ttype); |
||||
_token.setText(new String(text.getBuffer(), _begin, text.length()-_begin)); |
||||
} |
||||
_returnToken = _token; |
||||
} |
||||
|
||||
|
||||
private static final long[] mk_tokenSet_0() { |
||||
long[] data = new long[8]; |
||||
data[0]=-9224L; |
||||
for (int i = 1; i<=3; i++) { data[i]=-1L; } |
||||
return data; |
||||
} |
||||
public static final BitSet _tokenSet_0 = new BitSet(mk_tokenSet_0()); |
||||
private static final long[] mk_tokenSet_1() { |
||||
long[] data = new long[8]; |
||||
data[0]=-140737488355336L; |
||||
for (int i = 1; i<=3; i++) { data[i]=-1L; } |
||||
return data; |
||||
} |
||||
public static final BitSet _tokenSet_1 = new BitSet(mk_tokenSet_1()); |
||||
private static final long[] mk_tokenSet_2() { |
||||
long[] data = new long[8]; |
||||
data[0]=-4398046512136L; |
||||
for (int i = 1; i<=3; i++) { data[i]=-1L; } |
||||
return data; |
||||
} |
||||
public static final BitSet _tokenSet_2 = new BitSet(mk_tokenSet_2()); |
||||
private static final long[] mk_tokenSet_3() { |
||||
long[] data = new long[8]; |
||||
data[0]=-17179869192L; |
||||
data[1]=-268435457L; |
||||
for (int i = 2; i<=3; i++) { data[i]=-1L; } |
||||
return data; |
||||
} |
||||
public static final BitSet _tokenSet_3 = new BitSet(mk_tokenSet_3()); |
||||
|
||||
} |
||||
@ -1,241 +0,0 @@
|
||||
// $ANTLR : "tokdef.g" -> "ANTLRTokdefParser.java"$
|
||||
package com.fr.third.antlr; |
||||
import com.fr.third.antlr.collections.impl.BitSet; |
||||
|
||||
|
||||
/** Simple lexer/parser for reading token definition files |
||||
in support of the import/export vocab option for grammars. |
||||
*/ |
||||
public class ANTLRTokdefParser extends com.fr.third.antlr.LLkParser implements ANTLRTokdefParserTokenTypes |
||||
{ |
||||
|
||||
// This chunk of error reporting code provided by Brian Smith
|
||||
|
||||
private com.fr.third.antlr.Tool antlrTool; |
||||
|
||||
/** In order to make it so existing subclasses don't break, we won't require |
||||
* that the antlr.Tool instance be passed as a constructor element. Instead, |
||||
* the antlr.Tool instance should register itself via {@link #initTool(com.fr.third.antlr.Tool)} |
||||
* @throws IllegalStateException if a tool has already been registered |
||||
* @since 2.7.2 |
||||
*/ |
||||
public void setTool(com.fr.third.antlr.Tool tool) { |
||||
if (antlrTool == null) { |
||||
antlrTool = tool; |
||||
} |
||||
else { |
||||
throw new IllegalStateException("antlr.Tool already registered"); |
||||
} |
||||
} |
||||
|
||||
/** @since 2.7.2 */ |
||||
protected com.fr.third.antlr.Tool getTool() { |
||||
return antlrTool; |
||||
} |
||||
|
||||
/** Delegates the error message to the tool if any was registered via |
||||
* {@link #initTool(com.fr.third.antlr.Tool)} |
||||
* @since 2.7.2 |
||||
*/ |
||||
public void reportError(String s) { |
||||
if (getTool() != null) { |
||||
getTool().error(s, getFilename(), -1, -1); |
||||
} |
||||
else { |
||||
super.reportError(s); |
||||
} |
||||
} |
||||
|
||||
/** Delegates the error message to the tool if any was registered via |
||||
* {@link #initTool(com.fr.third.antlr.Tool)} |
||||
* @since 2.7.2 |
||||
*/ |
||||
public void reportError(RecognitionException e) { |
||||
if (getTool() != null) { |
||||
getTool().error(e.getErrorMessage(), e.getFilename(), e.getLine(), e.getColumn()); |
||||
} |
||||
else { |
||||
super.reportError(e); |
||||
} |
||||
} |
||||
|
||||
/** Delegates the warning message to the tool if any was registered via |
||||
* {@link #initTool(com.fr.third.antlr.Tool)} |
||||
* @since 2.7.2 |
||||
*/ |
||||
public void reportWarning(String s) { |
||||
if (getTool() != null) { |
||||
getTool().warning(s, getFilename(), -1, -1); |
||||
} |
||||
else { |
||||
super.reportWarning(s); |
||||
} |
||||
} |
||||
|
||||
protected ANTLRTokdefParser(TokenBuffer tokenBuf, int k) { |
||||
super(tokenBuf,k); |
||||
tokenNames = _tokenNames; |
||||
} |
||||
|
||||
public ANTLRTokdefParser(TokenBuffer tokenBuf) { |
||||
this(tokenBuf,3); |
||||
} |
||||
|
||||
protected ANTLRTokdefParser(TokenStream lexer, int k) { |
||||
super(lexer,k); |
||||
tokenNames = _tokenNames; |
||||
} |
||||
|
||||
public ANTLRTokdefParser(TokenStream lexer) { |
||||
this(lexer,3); |
||||
} |
||||
|
||||
public ANTLRTokdefParser(ParserSharedInputState state) { |
||||
super(state,3); |
||||
tokenNames = _tokenNames; |
||||
} |
||||
|
||||
public final void file( |
||||
ImportVocabTokenManager tm |
||||
) throws RecognitionException, TokenStreamException { |
||||
|
||||
Token name = null; |
||||
|
||||
try { // for error handling
|
||||
name = LT(1); |
||||
match(ID); |
||||
{ |
||||
_loop225: |
||||
do { |
||||
if ((LA(1)==ID||LA(1)==STRING)) { |
||||
line(tm); |
||||
} |
||||
else { |
||||
break _loop225; |
||||
} |
||||
|
||||
} while (true); |
||||
} |
||||
} |
||||
catch (RecognitionException ex) { |
||||
reportError(ex); |
||||
consume(); |
||||
consumeUntil(_tokenSet_0); |
||||
} |
||||
} |
||||
|
||||
public final void line( |
||||
ImportVocabTokenManager tm |
||||
) throws RecognitionException, TokenStreamException { |
||||
|
||||
Token s1 = null; |
||||
Token lab = null; |
||||
Token s2 = null; |
||||
Token id = null; |
||||
Token para = null; |
||||
Token id2 = null; |
||||
Token i = null; |
||||
Token t=null; Token s=null; |
||||
|
||||
try { // for error handling
|
||||
{ |
||||
if ((LA(1)==STRING)) { |
||||
s1 = LT(1); |
||||
match(STRING); |
||||
s = s1; |
||||
} |
||||
else if ((LA(1)==ID) && (LA(2)==ASSIGN) && (LA(3)==STRING)) { |
||||
lab = LT(1); |
||||
match(ID); |
||||
t = lab; |
||||
match(ASSIGN); |
||||
s2 = LT(1); |
||||
match(STRING); |
||||
s = s2; |
||||
} |
||||
else if ((LA(1)==ID) && (LA(2)==LPAREN)) { |
||||
id = LT(1); |
||||
match(ID); |
||||
t=id; |
||||
match(LPAREN); |
||||
para = LT(1); |
||||
match(STRING); |
||||
match(RPAREN); |
||||
} |
||||
else if ((LA(1)==ID) && (LA(2)==ASSIGN) && (LA(3)==INT)) { |
||||
id2 = LT(1); |
||||
match(ID); |
||||
t=id2; |
||||
} |
||||
else { |
||||
throw new NoViableAltException(LT(1), getFilename()); |
||||
} |
||||
|
||||
} |
||||
match(ASSIGN); |
||||
i = LT(1); |
||||
match(INT); |
||||
|
||||
Integer value = Integer.valueOf(i.getText()); |
||||
// if literal found, define as a string literal
|
||||
if ( s!=null ) { |
||||
tm.define(s.getText(), value.intValue()); |
||||
// if label, then label the string and map label to token symbol also
|
||||
if ( t!=null ) { |
||||
StringLiteralSymbol sl = |
||||
(StringLiteralSymbol) tm.getTokenSymbol(s.getText()); |
||||
sl.setLabel(t.getText()); |
||||
tm.mapToTokenSymbol(t.getText(), sl); |
||||
} |
||||
} |
||||
// define token (not a literal)
|
||||
else if ( t!=null ) { |
||||
tm.define(t.getText(), value.intValue()); |
||||
if ( para!=null ) { |
||||
TokenSymbol ts = tm.getTokenSymbol(t.getText()); |
||||
ts.setParaphrase( |
||||
para.getText() |
||||
); |
||||
} |
||||
} |
||||
|
||||
} |
||||
catch (RecognitionException ex) { |
||||
reportError(ex); |
||||
consume(); |
||||
consumeUntil(_tokenSet_1); |
||||
} |
||||
} |
||||
|
||||
|
||||
public static final String[] _tokenNames = { |
||||
"<0>", |
||||
"EOF", |
||||
"<2>", |
||||
"NULL_TREE_LOOKAHEAD", |
||||
"ID", |
||||
"STRING", |
||||
"ASSIGN", |
||||
"LPAREN", |
||||
"RPAREN", |
||||
"INT", |
||||
"WS", |
||||
"SL_COMMENT", |
||||
"ML_COMMENT", |
||||
"ESC", |
||||
"DIGIT", |
||||
"XDIGIT" |
||||
}; |
||||
|
||||
private static final long[] mk_tokenSet_0() { |
||||
long[] data = { 2L, 0L}; |
||||
return data; |
||||
} |
||||
public static final BitSet _tokenSet_0 = new BitSet(mk_tokenSet_0()); |
||||
private static final long[] mk_tokenSet_1() { |
||||
long[] data = { 50L, 0L}; |
||||
return data; |
||||
} |
||||
public static final BitSet _tokenSet_1 = new BitSet(mk_tokenSet_1()); |
||||
|
||||
} |
||||
@ -1,18 +0,0 @@
|
||||
// $ANTLR : "tokdef.g" -> "ANTLRTokdefParser.java"$
|
||||
package com.fr.third.antlr; |
||||
public interface ANTLRTokdefParserTokenTypes { |
||||
int EOF = 1; |
||||
int NULL_TREE_LOOKAHEAD = 3; |
||||
int ID = 4; |
||||
int STRING = 5; |
||||
int ASSIGN = 6; |
||||
int LPAREN = 7; |
||||
int RPAREN = 8; |
||||
int INT = 9; |
||||
int WS = 10; |
||||
int SL_COMMENT = 11; |
||||
int ML_COMMENT = 12; |
||||
int ESC = 13; |
||||
int DIGIT = 14; |
||||
int XDIGIT = 15; |
||||
} |
||||
@ -1,68 +0,0 @@
|
||||
// $ANTLR 2.7.3rc3: "antlr.g" -> "ANTLRLexer.java"$
|
||||
|
||||
package com.fr.third.antlr; |
||||
|
||||
public interface ANTLRTokenTypes { |
||||
int EOF = 1; |
||||
int NULL_TREE_LOOKAHEAD = 3; |
||||
int LITERAL_tokens = 4; |
||||
int LITERAL_header = 5; |
||||
int STRING_LITERAL = 6; |
||||
int ACTION = 7; |
||||
int DOC_COMMENT = 8; |
||||
int LITERAL_lexclass = 9; |
||||
int LITERAL_class = 10; |
||||
int LITERAL_extends = 11; |
||||
int LITERAL_Lexer = 12; |
||||
int LITERAL_TreeParser = 13; |
||||
int OPTIONS = 14; |
||||
int ASSIGN = 15; |
||||
int SEMI = 16; |
||||
int RCURLY = 17; |
||||
int LITERAL_charVocabulary = 18; |
||||
int CHAR_LITERAL = 19; |
||||
int INT = 20; |
||||
int OR = 21; |
||||
int RANGE = 22; |
||||
int TOKENS = 23; |
||||
int TOKEN_REF = 24; |
||||
int OPEN_ELEMENT_OPTION = 25; |
||||
int CLOSE_ELEMENT_OPTION = 26; |
||||
int LPAREN = 27; |
||||
int RPAREN = 28; |
||||
int LITERAL_Parser = 29; |
||||
int LITERAL_protected = 30; |
||||
int LITERAL_public = 31; |
||||
int LITERAL_private = 32; |
||||
int BANG = 33; |
||||
int ARG_ACTION = 34; |
||||
int LITERAL_returns = 35; |
||||
int COLON = 36; |
||||
int LITERAL_throws = 37; |
||||
int COMMA = 38; |
||||
int LITERAL_exception = 39; |
||||
int LITERAL_catch = 40; |
||||
int RULE_REF = 41; |
||||
int NOT_OP = 42; |
||||
int SEMPRED = 43; |
||||
int TREE_BEGIN = 44; |
||||
int QUESTION = 45; |
||||
int STAR = 46; |
||||
int PLUS = 47; |
||||
int IMPLIES = 48; |
||||
int CARET = 49; |
||||
int WILDCARD = 50; |
||||
int LITERAL_options = 51; |
||||
int WS = 52; |
||||
int COMMENT = 53; |
||||
int SL_COMMENT = 54; |
||||
int ML_COMMENT = 55; |
||||
int ESC = 56; |
||||
int DIGIT = 57; |
||||
int XDIGIT = 58; |
||||
int NESTED_ARG_ACTION = 59; |
||||
int NESTED_ACTION = 60; |
||||
int WS_LOOP = 61; |
||||
int INTERNAL_RULE_REF = 62; |
||||
int WS_OPT = 63; |
||||
} |
||||
@ -1,411 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/ASTFactory.java#2 $
|
||||
*/ |
||||
|
||||
import java.lang.reflect.Constructor; |
||||
import java.util.Hashtable; |
||||
|
||||
import com.fr.third.antlr.collections.AST; |
||||
import com.fr.third.antlr.collections.impl.ASTArray; |
||||
|
||||
|
||||
/** AST Support code shared by TreeParser and Parser. |
||||
* We use delegation to share code (and have only one |
||||
* bit of code to maintain) rather than subclassing |
||||
* or superclassing (forces AST support code to be |
||||
* loaded even when you don't want to do AST stuff). |
||||
* |
||||
* Typically, setASTNodeType is used to specify the |
||||
* homogeneous type of node to create, but you can override |
||||
* create to make heterogeneous nodes etc... |
||||
*/ |
||||
public class ASTFactory { |
||||
/** Name of AST class to create during tree construction. |
||||
* Null implies that the create method should create |
||||
* a default AST type such as CommonAST. This is for |
||||
* homogeneous nodes. |
||||
*/ |
||||
protected String theASTNodeType = null; |
||||
protected Class theASTNodeTypeClass = null; |
||||
|
||||
/** How to specify the classname to create for a particular |
||||
* token type. Note that ANTLR allows you to say, for example, |
||||
* |
||||
tokens { |
||||
PLUS<AST=PLUSNode>; |
||||
... |
||||
} |
||||
* |
||||
* and it tracks everything statically. #[PLUS] will make you |
||||
* a PLUSNode w/o use of this table. |
||||
* |
||||
* For tokens that ANTLR cannot track statically like #[i], |
||||
* you can use this table to map PLUS (Integer) -> PLUSNode (Class) |
||||
* etc... ANTLR sets the class map from the tokens {...} section |
||||
* via the ASTFactory(Hashtable) ctor in antlr.Parser. |
||||
*/ |
||||
protected Hashtable tokenTypeToASTClassMap = null; |
||||
|
||||
public ASTFactory() { |
||||
} |
||||
|
||||
/** Create factory with a specific mapping from token type |
||||
* to Java AST node type. Your subclasses of ASTFactory |
||||
* can override and reuse the map stuff. |
||||
*/ |
||||
public ASTFactory(Hashtable tokenTypeToClassMap) { |
||||
setTokenTypeToASTClassMap(tokenTypeToClassMap); |
||||
} |
||||
|
||||
/** Specify an "override" for the Java AST object created for a |
||||
* specific token. It is provided as a convenience so |
||||
* you can specify node types dynamically. ANTLR sets |
||||
* the token type mapping automatically from the tokens{...} |
||||
* section, but you can change that mapping with this method. |
||||
* ANTLR does it's best to statically determine the node |
||||
* type for generating parsers, but it cannot deal with |
||||
* dynamic values like #[LT(1)]. In this case, it relies |
||||
* on the mapping. Beware differences in the tokens{...} |
||||
* section and what you set via this method. Make sure |
||||
* they are the same. |
||||
* |
||||
* Set className to null to remove the mapping. |
||||
* |
||||
* @since 2.7.2 |
||||
*/ |
||||
public void setTokenTypeASTNodeType(int tokenType, String className) |
||||
throws IllegalArgumentException |
||||
{ |
||||
if ( tokenTypeToASTClassMap==null ) { |
||||
tokenTypeToASTClassMap = new Hashtable(); |
||||
} |
||||
if ( className==null ) { |
||||
tokenTypeToASTClassMap.remove(new Integer(tokenType)); |
||||
return; |
||||
} |
||||
Class c = null; |
||||
try { |
||||
c = Utils.loadClass(className); |
||||
tokenTypeToASTClassMap.put(new Integer(tokenType), c); |
||||
} |
||||
catch (Exception e) { |
||||
throw new IllegalArgumentException("Invalid class, "+className); |
||||
} |
||||
} |
||||
|
||||
/** For a given token type, what is the AST node object type to create |
||||
* for it? |
||||
* @since 2.7.2 |
||||
*/ |
||||
public Class getASTNodeType(int tokenType) { |
||||
// try node specific class
|
||||
if ( tokenTypeToASTClassMap!=null ) { |
||||
Class c = (Class)tokenTypeToASTClassMap.get(new Integer(tokenType)); |
||||
if ( c!=null ) { |
||||
return c; |
||||
} |
||||
} |
||||
|
||||
// try a global specified class
|
||||
if (theASTNodeTypeClass != null) { |
||||
return theASTNodeTypeClass; |
||||
} |
||||
|
||||
// default to the common type
|
||||
return CommonAST.class; |
||||
} |
||||
|
||||
/** Add a child to the current AST */ |
||||
public void addASTChild(ASTPair currentAST, AST child) { |
||||
if (child != null) { |
||||
if (currentAST.root == null) { |
||||
// Make new child the current root
|
||||
currentAST.root = child; |
||||
} |
||||
else { |
||||
if (currentAST.child == null) { |
||||
// Add new child to current root
|
||||
currentAST.root.setFirstChild(child); |
||||
} |
||||
else { |
||||
currentAST.child.setNextSibling(child); |
||||
} |
||||
} |
||||
// Make new child the current child
|
||||
currentAST.child = child; |
||||
currentAST.advanceChildToEnd(); |
||||
} |
||||
} |
||||
|
||||
/** Create a new empty AST node; if the user did not specify |
||||
* an AST node type, then create a default one: CommonAST. |
||||
*/ |
||||
public AST create() { |
||||
return create(Token.INVALID_TYPE); |
||||
} |
||||
|
||||
public AST create(int type) { |
||||
Class c = getASTNodeType(type); |
||||
AST t = create(c); |
||||
if ( t!=null ) { |
||||
t.initialize(type, ""); |
||||
} |
||||
return t; |
||||
} |
||||
|
||||
public AST create(int type, String txt) { |
||||
AST t = create(type); |
||||
if ( t!=null ) { |
||||
t.initialize(type, txt); |
||||
} |
||||
return t; |
||||
} |
||||
|
||||
/** Create an AST node with the token type and text passed in, but |
||||
* with a specific Java object type. Typically called when you |
||||
* say @[PLUS,"+",PLUSNode] in an antlr action. |
||||
* @since 2.7.2 |
||||
*/ |
||||
public AST create(int type, String txt, String className) { |
||||
AST t = create(className); |
||||
if ( t!=null ) { |
||||
t.initialize(type, txt); |
||||
} |
||||
return t; |
||||
} |
||||
|
||||
/** Create a new empty AST node; if the user did not specify |
||||
* an AST node type, then create a default one: CommonAST. |
||||
*/ |
||||
public AST create(AST tr) { |
||||
if (tr == null) return null; // create(null) == null
|
||||
AST t = create(tr.getType()); |
||||
if ( t!=null ) { |
||||
t.initialize(tr); |
||||
} |
||||
return t; |
||||
} |
||||
|
||||
public AST create(Token tok) { |
||||
AST t = create(tok.getType()); |
||||
if ( t!=null ) { |
||||
t.initialize(tok); |
||||
} |
||||
return t; |
||||
} |
||||
|
||||
/** ANTLR generates reference to this when you reference a token |
||||
* that has a specified heterogeneous AST node type. This is |
||||
* also a special case node creation routine for backward |
||||
* compatibility. Before, ANTLR generated "new T(tokenObject)" |
||||
* and so I must call the appropriate constructor not T(). |
||||
* |
||||
* @since 2.7.2 |
||||
*/ |
||||
public AST create(Token tok, String className) { |
||||
AST t = createUsingCtor(tok,className); |
||||
return t; |
||||
} |
||||
|
||||
/** |
||||
* @since 2.7.2 |
||||
*/ |
||||
public AST create(String className) { |
||||
Class c = null; |
||||
try { |
||||
c = Utils.loadClass(className); |
||||
} |
||||
catch (Exception e) { |
||||
throw new IllegalArgumentException("Invalid class, "+className); |
||||
} |
||||
return create(c); |
||||
} |
||||
|
||||
/** |
||||
* @since 2.7.2 |
||||
*/ |
||||
protected AST createUsingCtor(Token token, String className) { |
||||
Class c = null; |
||||
AST t = null; |
||||
try { |
||||
c = Utils.loadClass(className); |
||||
Class[] tokenArgType = new Class[] { com.fr.third.antlr.Token.class }; |
||||
try { |
||||
Constructor ctor = c.getConstructor(tokenArgType); |
||||
t = (AST)ctor.newInstance(new Object[]{token}); // make a new one
|
||||
} |
||||
catch (NoSuchMethodException e){ |
||||
// just do the regular thing if you can't find the ctor
|
||||
// Your AST must have default ctor to use this.
|
||||
t = create(c); |
||||
if ( t!=null ) { |
||||
t.initialize(token); |
||||
} |
||||
} |
||||
} |
||||
catch (Exception e) { |
||||
throw new IllegalArgumentException("Invalid class or can't make instance, "+className); |
||||
} |
||||
return t; |
||||
} |
||||
|
||||
/** |
||||
* @since 2.7.2 |
||||
*/ |
||||
protected AST create(Class c) { |
||||
AST t = null; |
||||
try { |
||||
t = (AST)c.newInstance(); // make a new one
|
||||
} |
||||
catch (Exception e) { |
||||
error("Can't create AST Node " + c.getName()); |
||||
return null; |
||||
} |
||||
return t; |
||||
} |
||||
|
||||
/** Copy a single node with same Java AST objec type. |
||||
* Ignore the tokenType->Class mapping since you know |
||||
* the type of the node, t.getClass(), and doing a dup. |
||||
* |
||||
* clone() is not used because we want all AST creation |
||||
* to go thru the factory so creation can be |
||||
* tracked. Returns null if t is null. |
||||
*/ |
||||
public AST dup(AST t) { |
||||
if ( t==null ) { |
||||
return null; |
||||
} |
||||
AST dup_t = create(t.getClass()); |
||||
dup_t.initialize(t); |
||||
return dup_t; |
||||
} |
||||
|
||||
/** Duplicate tree including siblings of root. */ |
||||
public AST dupList(AST t) { |
||||
AST result = dupTree(t); // if t == null, then result==null
|
||||
AST nt = result; |
||||
while (t != null) { // for each sibling of the root
|
||||
t = t.getNextSibling(); |
||||
nt.setNextSibling(dupTree(t)); // dup each subtree, building new tree
|
||||
nt = nt.getNextSibling(); |
||||
} |
||||
return result; |
||||
} |
||||
|
||||
/**Duplicate a tree, assuming this is a root node of a tree-- |
||||
* duplicate that node and what's below; ignore siblings of root node. |
||||
*/ |
||||
public AST dupTree(AST t) { |
||||
AST result = dup(t); // make copy of root
|
||||
// copy all children of root.
|
||||
if (t != null) { |
||||
result.setFirstChild(dupList(t.getFirstChild())); |
||||
} |
||||
return result; |
||||
} |
||||
|
||||
/** Make a tree from a list of nodes. The first element in the |
||||
* array is the root. If the root is null, then the tree is |
||||
* a simple list not a tree. Handles null children nodes correctly. |
||||
* For example, build(a, b, null, c) yields tree (a b c). build(null,a,b) |
||||
* yields tree (nil a b). |
||||
*/ |
||||
public AST make(AST[] nodes) { |
||||
if (nodes == null || nodes.length == 0) return null; |
||||
AST root = nodes[0]; |
||||
AST tail = null; |
||||
if (root != null) { |
||||
root.setFirstChild(null); // don't leave any old pointers set
|
||||
} |
||||
// link in children;
|
||||
for (int i = 1; i < nodes.length; i++) { |
||||
if (nodes[i] == null) continue; // ignore null nodes
|
||||
if (root == null) { |
||||
// Set the root and set it up for a flat list
|
||||
root = tail = nodes[i]; |
||||
} |
||||
else if (tail == null) { |
||||
root.setFirstChild(nodes[i]); |
||||
tail = root.getFirstChild(); |
||||
} |
||||
else { |
||||
tail.setNextSibling(nodes[i]); |
||||
tail = tail.getNextSibling(); |
||||
} |
||||
// Chase tail to last sibling
|
||||
while (tail.getNextSibling() != null) { |
||||
tail = tail.getNextSibling(); |
||||
} |
||||
} |
||||
return root; |
||||
} |
||||
|
||||
/** Make a tree from a list of nodes, where the nodes are contained |
||||
* in an ASTArray object |
||||
*/ |
||||
public AST make(ASTArray nodes) { |
||||
return make(nodes.array); |
||||
} |
||||
|
||||
/** Make an AST the root of current AST */ |
||||
public void makeASTRoot(ASTPair currentAST, AST root) { |
||||
if (root != null) { |
||||
// Add the current root as a child of new root
|
||||
root.addChild(currentAST.root); |
||||
// The new current child is the last sibling of the old root
|
||||
currentAST.child = currentAST.root; |
||||
currentAST.advanceChildToEnd(); |
||||
// Set the new root
|
||||
currentAST.root = root; |
||||
} |
||||
} |
||||
|
||||
public void setASTNodeClass(Class c) { |
||||
if ( c!=null ) { |
||||
theASTNodeTypeClass = c; |
||||
theASTNodeType = c.getName(); |
||||
} |
||||
} |
||||
|
||||
public void setASTNodeClass(String t) { |
||||
theASTNodeType = t; |
||||
try { |
||||
theASTNodeTypeClass = Utils.loadClass(t); // get class def
|
||||
} |
||||
catch (Exception e) { |
||||
// either class not found,
|
||||
// class is interface/abstract, or
|
||||
// class or initializer is not accessible.
|
||||
error("Can't find/access AST Node type" + t); |
||||
} |
||||
} |
||||
|
||||
/** Specify the type of node to create during tree building. |
||||
* @deprecated since 2.7.1 |
||||
*/ |
||||
public void setASTNodeType(String t) { |
||||
setASTNodeClass(t); |
||||
} |
||||
|
||||
public Hashtable getTokenTypeToASTClassMap() { |
||||
return tokenTypeToASTClassMap; |
||||
} |
||||
|
||||
public void setTokenTypeToASTClassMap(Hashtable tokenTypeToClassMap) { |
||||
this.tokenTypeToASTClassMap = tokenTypeToClassMap; |
||||
} |
||||
|
||||
/** To change where error messages go, can subclass/override this method |
||||
* and then setASTFactory in Parser and TreeParser. This method removes |
||||
* a prior dependency on class antlr.Tool. |
||||
*/ |
||||
public void error(String e) { |
||||
System.err.println(e); |
||||
} |
||||
} |
||||
@ -1,76 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/ASTIterator.java#2 $
|
||||
*/ |
||||
|
||||
import com.fr.third.antlr.collections.AST; |
||||
|
||||
public class ASTIterator { |
||||
protected AST cursor = null; |
||||
protected AST original = null; |
||||
|
||||
|
||||
public ASTIterator(AST t) { |
||||
original = cursor = t; |
||||
} |
||||
|
||||
/** Is 'sub' a subtree of 't' beginning at the root? */ |
||||
public boolean isSubtree(AST t, AST sub) { |
||||
AST sibling; |
||||
|
||||
// the empty tree is always a subset of any tree.
|
||||
if (sub == null) { |
||||
return true; |
||||
} |
||||
|
||||
// if the tree is empty, return true if the subtree template is too.
|
||||
if (t == null) { |
||||
// if (sub != null) return false;
|
||||
// return true;
|
||||
return false; |
||||
} |
||||
|
||||
// Otherwise, start walking sibling lists. First mismatch, return false.
|
||||
for (sibling = t; |
||||
sibling != null && sub != null; |
||||
sibling = sibling.getNextSibling(), sub = sub.getNextSibling()) { |
||||
// as a quick optimization, check roots first.
|
||||
if (sibling.getType() != sub.getType()) return false; |
||||
// if roots match, do full match test on children.
|
||||
if (sibling.getFirstChild() != null) { |
||||
if (!isSubtree(sibling.getFirstChild(), sub.getFirstChild())) return false; |
||||
} |
||||
} |
||||
return true; |
||||
} |
||||
|
||||
/** Find the next subtree with structure and token types equal to |
||||
* those of 'template'. |
||||
*/ |
||||
public AST next(AST template) { |
||||
AST t = null; |
||||
AST sibling = null; |
||||
|
||||
if (cursor == null) { // do nothing if no tree to work on
|
||||
return null; |
||||
} |
||||
|
||||
// Start walking sibling list looking for subtree matches.
|
||||
for (; cursor != null; cursor = cursor.getNextSibling()) { |
||||
// as a quick optimization, check roots first.
|
||||
if (cursor.getType() == template.getType()) { |
||||
// if roots match, do full match test on children.
|
||||
if (cursor.getFirstChild() != null) { |
||||
if (isSubtree(cursor.getFirstChild(), template.getFirstChild())) { |
||||
return cursor; |
||||
} |
||||
} |
||||
} |
||||
} |
||||
return t; |
||||
} |
||||
} |
||||
@ -1,108 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/ASTNULLType.java#2 $
|
||||
*/ |
||||
|
||||
|
||||
import com.fr.third.antlr.collections.AST; |
||||
import com.fr.third.antlr.collections.ASTEnumeration; |
||||
|
||||
|
||||
/** There is only one instance of this class **/ |
||||
public class ASTNULLType implements AST { |
||||
public void addChild(AST c) { |
||||
} |
||||
|
||||
public boolean equals(AST t) { |
||||
return false; |
||||
} |
||||
|
||||
public boolean equalsList(AST t) { |
||||
return false; |
||||
} |
||||
|
||||
public boolean equalsListPartial(AST t) { |
||||
return false; |
||||
} |
||||
|
||||
public boolean equalsTree(AST t) { |
||||
return false; |
||||
} |
||||
|
||||
public boolean equalsTreePartial(AST t) { |
||||
return false; |
||||
} |
||||
|
||||
public ASTEnumeration findAll(AST tree) { |
||||
return null; |
||||
} |
||||
|
||||
public ASTEnumeration findAllPartial(AST subtree) { |
||||
return null; |
||||
} |
||||
|
||||
public AST getFirstChild() { |
||||
return this; |
||||
} |
||||
|
||||
public AST getNextSibling() { |
||||
return this; |
||||
} |
||||
|
||||
public String getText() { |
||||
return "<ASTNULL>"; |
||||
} |
||||
|
||||
public int getType() { |
||||
return Token.NULL_TREE_LOOKAHEAD; |
||||
} |
||||
|
||||
public int getLine() { |
||||
return 0; |
||||
} |
||||
|
||||
public int getColumn() { |
||||
return 0; |
||||
} |
||||
|
||||
public int getNumberOfChildren() { |
||||
return 0; |
||||
} |
||||
|
||||
public void initialize(int t, String txt) { |
||||
} |
||||
|
||||
public void initialize(AST t) { |
||||
} |
||||
|
||||
public void initialize(Token t) { |
||||
} |
||||
|
||||
public void setFirstChild(AST c) { |
||||
} |
||||
|
||||
public void setNextSibling(AST n) { |
||||
} |
||||
|
||||
public void setText(String text) { |
||||
} |
||||
|
||||
public void setType(int ttype) { |
||||
} |
||||
|
||||
public String toString() { |
||||
return getText(); |
||||
} |
||||
|
||||
public String toStringList() { |
||||
return getText(); |
||||
} |
||||
|
||||
public String toStringTree() { |
||||
return getText(); |
||||
} |
||||
} |
||||
@ -1,43 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/ASTPair.java#2 $
|
||||
*/ |
||||
|
||||
import com.fr.third.antlr.collections.AST; |
||||
|
||||
/** ASTPair: utility class used for manipulating a pair of ASTs |
||||
* representing the current AST root and current AST sibling. |
||||
* This exists to compensate for the lack of pointers or 'var' |
||||
* arguments in Java. |
||||
*/ |
||||
public class ASTPair { |
||||
public AST root; // current root of tree
|
||||
public AST child; // current child to which siblings are added
|
||||
|
||||
/** Make sure that child is the last sibling */ |
||||
public final void advanceChildToEnd() { |
||||
if (child != null) { |
||||
while (child.getNextSibling() != null) { |
||||
child = child.getNextSibling(); |
||||
} |
||||
} |
||||
} |
||||
|
||||
/** Copy an ASTPair. Don't call it clone() because we want type-safety */ |
||||
public ASTPair copy() { |
||||
ASTPair tmp = new ASTPair(); |
||||
tmp.root = root; |
||||
tmp.child = child; |
||||
return tmp; |
||||
} |
||||
|
||||
public String toString() { |
||||
String r = root == null ? "null" : root.getText(); |
||||
String c = child == null ? "null" : child.getText(); |
||||
return "[" + r + "," + c + "]"; |
||||
} |
||||
} |
||||
@ -1,14 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/ASTVisitor.java#2 $
|
||||
*/ |
||||
|
||||
import com.fr.third.antlr.collections.AST; |
||||
|
||||
public interface ASTVisitor { |
||||
public void visit(AST node); |
||||
} |
||||
@ -1,35 +0,0 @@
|
||||
package com.fr.third.antlr.ASdebug; |
||||
|
||||
import com.fr.third.antlr.Token; |
||||
import com.fr.third.antlr.TokenStream; |
||||
|
||||
/** |
||||
* Default implementation of <code>IASDebugStream</code> methods. |
||||
* @author Prashant Deva |
||||
*/ |
||||
public final class ASDebugStream |
||||
{ |
||||
|
||||
public static String getEntireText(TokenStream stream) |
||||
{ |
||||
if (stream instanceof IASDebugStream) |
||||
{ |
||||
IASDebugStream dbgStream = (IASDebugStream) stream; |
||||
return dbgStream.getEntireText(); |
||||
} |
||||
return null; |
||||
} |
||||
|
||||
public static TokenOffsetInfo getOffsetInfo(TokenStream stream, Token token) |
||||
{ |
||||
if (stream instanceof IASDebugStream) |
||||
{ |
||||
IASDebugStream dbgStream = (IASDebugStream) stream; |
||||
return dbgStream.getOffsetInfo(token); |
||||
} |
||||
return null; |
||||
} |
||||
|
||||
|
||||
} |
||||
|
||||
@ -1,24 +0,0 @@
|
||||
package com.fr.third.antlr.ASdebug; |
||||
|
||||
import com.fr.third.antlr.Token; |
||||
|
||||
/** |
||||
* Provides information used by the 'Input Text' view |
||||
* of Antlr Studio. |
||||
* @author Prashant Deva |
||||
*/ |
||||
public interface IASDebugStream |
||||
{ |
||||
/** |
||||
* Returns the entire text input to the lexer. |
||||
* @return The entire text or <code>null</code>, if error occured or System.in was used. |
||||
*/ |
||||
String getEntireText(); |
||||
|
||||
/** |
||||
* Returns the offset information for the token |
||||
* @param token the token whose information need to be retrieved |
||||
* @return offset info, or <code>null</code> |
||||
*/ |
||||
TokenOffsetInfo getOffsetInfo(Token token); |
||||
} |
||||
@ -1,22 +0,0 @@
|
||||
package com.fr.third.antlr.ASdebug; |
||||
|
||||
/** |
||||
* Provides offset info for a token.<br> |
||||
* All offsets are 0-based. |
||||
* @author Prashant Deva |
||||
*/ |
||||
public class TokenOffsetInfo |
||||
{ |
||||
public final int beginOffset, length; |
||||
|
||||
public TokenOffsetInfo(int offset, int length) |
||||
{ |
||||
this.beginOffset = offset; |
||||
this.length = length; |
||||
} |
||||
|
||||
public int getEndOffset() |
||||
{ |
||||
return beginOffset+length-1; |
||||
} |
||||
} |
||||
@ -1,33 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/ActionElement.java#2 $
|
||||
*/ |
||||
|
||||
class ActionElement extends AlternativeElement { |
||||
protected String actionText; |
||||
protected boolean isSemPred = false; |
||||
|
||||
|
||||
public ActionElement(Grammar g, Token t) { |
||||
super(g); |
||||
actionText = t.getText(); |
||||
line = t.getLine(); |
||||
column = t.getColumn(); |
||||
} |
||||
|
||||
public void generate() { |
||||
grammar.generator.gen(this); |
||||
} |
||||
|
||||
public Lookahead look(int k) { |
||||
return grammar.theLLkAnalyzer.look(k, this); |
||||
} |
||||
|
||||
public String toString() { |
||||
return " " + actionText + (isSemPred?"?":""); |
||||
} |
||||
} |
||||
@ -1,23 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/ActionTransInfo.java#2 $
|
||||
*/ |
||||
|
||||
/** |
||||
* This class contains information about how an action |
||||
* was translated (using the AST conversion rules). |
||||
*/ |
||||
public class ActionTransInfo { |
||||
public boolean assignToRoot = false; // somebody did a "#rule = "
|
||||
public String refRuleRoot = null; // somebody referenced #rule; string is translated var
|
||||
public String followSetName = null; // somebody referenced $FOLLOW; string is the name of the lookahead set
|
||||
|
||||
public String toString() { |
||||
return "assignToRoot:" + assignToRoot + ", refRuleRoot:" |
||||
+ refRuleRoot + ", FOLLOW Set:" + followSetName; |
||||
} |
||||
} |
||||
@ -1,73 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/Alternative.java#2 $
|
||||
*/ |
||||
|
||||
|
||||
|
||||
/** Intermediate data class holds information about an alternative */ |
||||
class Alternative { |
||||
// Tracking alternative linked list
|
||||
AlternativeElement head; // head of alt element list
|
||||
AlternativeElement tail; // last element added
|
||||
|
||||
// Syntactic predicate block if non-null
|
||||
protected SynPredBlock synPred; |
||||
// Semantic predicate action if non-null
|
||||
protected String semPred; |
||||
// Exception specification if non-null
|
||||
protected ExceptionSpec exceptionSpec; |
||||
// Init action if non-null;
|
||||
protected Lookahead[] cache; // lookahead for alt. Filled in by
|
||||
// deterministic() only!!!!!!! Used for
|
||||
// code gen after calls to deterministic()
|
||||
// and used by deterministic for (...)*, (..)+,
|
||||
// and (..)? blocks. 1..k
|
||||
protected int lookaheadDepth; // each alt has different look depth possibly.
|
||||
// depth can be NONDETERMINISTIC too.
|
||||
// 0..n-1
|
||||
// If non-null, Tree specification ala -> A B C (not implemented)
|
||||
protected Token treeSpecifier = null; |
||||
// True of AST generation is on for this alt
|
||||
private boolean doAutoGen; |
||||
|
||||
|
||||
public Alternative() { |
||||
} |
||||
|
||||
public Alternative(AlternativeElement firstElement) { |
||||
addElement(firstElement); |
||||
} |
||||
|
||||
public void addElement(AlternativeElement e) { |
||||
// Link the element into the list
|
||||
if (head == null) { |
||||
head = tail = e; |
||||
} |
||||
else { |
||||
tail.next = e; |
||||
tail = e; |
||||
} |
||||
} |
||||
|
||||
public boolean atStart() { |
||||
return head == null; |
||||
} |
||||
|
||||
public boolean getAutoGen() { |
||||
// Don't build an AST if there is a tree-rewrite-specifier
|
||||
return doAutoGen && treeSpecifier == null; |
||||
} |
||||
|
||||
public Token getTreeSpecifier() { |
||||
return treeSpecifier; |
||||
} |
||||
|
||||
public void setAutoGen(boolean doAutoGen_) { |
||||
doAutoGen = doAutoGen_; |
||||
} |
||||
} |
||||
@ -1,226 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/AlternativeBlock.java#2 $
|
||||
*/ |
||||
|
||||
import com.fr.third.antlr.collections.impl.Vector; |
||||
|
||||
/**A list of alternatives */ |
||||
class AlternativeBlock extends AlternativeElement { |
||||
protected String initAction = null; // string for init action {...}
|
||||
protected Vector alternatives; // Contains Alternatives
|
||||
|
||||
protected String label; // can label a looping block to break out of it.
|
||||
|
||||
protected int alti, altj; // which alts are being compared at the moment with
|
||||
// deterministic()?
|
||||
protected int analysisAlt; // which alt are we computing look on? Must be alti or altj
|
||||
|
||||
protected boolean hasAnAction = false; // does any alt have an action?
|
||||
protected boolean hasASynPred = false; // does any alt have a syntactic predicate?
|
||||
|
||||
protected int ID = 0; // used to generate unique variables
|
||||
protected static int nblks; // how many blocks have we allocated?
|
||||
boolean not = false; // true if block is inverted.
|
||||
|
||||
boolean greedy = true; // Blocks are greedy by default
|
||||
boolean greedySet = false; // but, if not explicitly greedy, warning might be generated
|
||||
|
||||
protected boolean doAutoGen = true; // false if no AST (or text) to be generated for block
|
||||
|
||||
protected boolean warnWhenFollowAmbig = true; // warn when an empty path or exit path
|
||||
|
||||
protected boolean generateAmbigWarnings = true; // the general warning "shut-up" mechanism
|
||||
// conflicts with alt of subrule.
|
||||
// Turning this off will suppress stuff
|
||||
// like the if-then-else ambig.
|
||||
|
||||
public AlternativeBlock(Grammar g) { |
||||
super(g); |
||||
alternatives = new Vector(5); |
||||
this.not = false; |
||||
nblks++; |
||||
ID = nblks; |
||||
} |
||||
|
||||
public AlternativeBlock(Grammar g, Token start, boolean not) { |
||||
super(g, start); |
||||
alternatives = new Vector(5); |
||||
// this.line = start.getLine();
|
||||
// this.column = start.getColumn();
|
||||
this.not = not; |
||||
nblks++; |
||||
ID = nblks; |
||||
} |
||||
|
||||
public void addAlternative(Alternative alt) { |
||||
alternatives.appendElement(alt); |
||||
} |
||||
|
||||
public void generate() { |
||||
grammar.generator.gen(this); |
||||
} |
||||
|
||||
public Alternative getAlternativeAt(int i) { |
||||
return (Alternative)alternatives.elementAt(i); |
||||
} |
||||
|
||||
public Vector getAlternatives() { |
||||
return alternatives; |
||||
} |
||||
|
||||
public boolean getAutoGen() { |
||||
return doAutoGen; |
||||
} |
||||
|
||||
public String getInitAction() { |
||||
return initAction; |
||||
} |
||||
|
||||
public String getLabel() { |
||||
return label; |
||||
} |
||||
|
||||
public Lookahead look(int k) { |
||||
return grammar.theLLkAnalyzer.look(k, this); |
||||
} |
||||
|
||||
public void prepareForAnalysis() { |
||||
for (int i = 0; i < alternatives.size(); i++) { |
||||
// deterministic() uses an alternative cache and sets lookahead depth
|
||||
Alternative a = (Alternative)alternatives.elementAt(i); |
||||
a.cache = new Lookahead[grammar.maxk + 1]; |
||||
a.lookaheadDepth = GrammarAnalyzer.LOOKAHEAD_DEPTH_INIT; |
||||
} |
||||
} |
||||
|
||||
/**Walk the syntactic predicate and, for a rule ref R, remove |
||||
* the ref from the list of FOLLOW references for R (stored |
||||
* in the symbol table. |
||||
*/ |
||||
public void removeTrackingOfRuleRefs(Grammar g) { |
||||
for (int i = 0; i < alternatives.size(); i++) { |
||||
Alternative alt = getAlternativeAt(i); |
||||
AlternativeElement elem = alt.head; |
||||
while (elem != null) { |
||||
if (elem instanceof RuleRefElement) { |
||||
RuleRefElement rr = (RuleRefElement)elem; |
||||
RuleSymbol rs = (RuleSymbol)g.getSymbol(rr.targetRule); |
||||
if (rs == null) { |
||||
grammar.antlrTool.error("rule " + rr.targetRule + " referenced in (...)=>, but not defined"); |
||||
} |
||||
else { |
||||
rs.references.removeElement(rr); |
||||
} |
||||
} |
||||
else if (elem instanceof AlternativeBlock) {// recurse into subrules
|
||||
((AlternativeBlock)elem).removeTrackingOfRuleRefs(g); |
||||
} |
||||
elem = elem.next; |
||||
} |
||||
} |
||||
} |
||||
|
||||
public void setAlternatives(Vector v) { |
||||
alternatives = v; |
||||
} |
||||
|
||||
public void setAutoGen(boolean doAutoGen_) { |
||||
doAutoGen = doAutoGen_; |
||||
} |
||||
|
||||
public void setInitAction(String initAction_) { |
||||
initAction = initAction_; |
||||
} |
||||
|
||||
public void setLabel(String label_) { |
||||
label = label_; |
||||
} |
||||
|
||||
public void setOption(Token key, Token value) { |
||||
if (key.getText().equals("warnWhenFollowAmbig")) { |
||||
if (value.getText().equals("true")) { |
||||
warnWhenFollowAmbig = true; |
||||
} |
||||
else if (value.getText().equals("false")) { |
||||
warnWhenFollowAmbig = false; |
||||
} |
||||
else { |
||||
grammar.antlrTool.error("Value for warnWhenFollowAmbig must be true or false", grammar.getFilename(), key.getLine(), key.getColumn()); |
||||
} |
||||
} |
||||
else if (key.getText().equals("generateAmbigWarnings")) { |
||||
if (value.getText().equals("true")) { |
||||
generateAmbigWarnings = true; |
||||
} |
||||
else if (value.getText().equals("false")) { |
||||
generateAmbigWarnings = false; |
||||
} |
||||
else { |
||||
grammar.antlrTool.error("Value for generateAmbigWarnings must be true or false", grammar.getFilename(), key.getLine(), key.getColumn()); |
||||
} |
||||
} |
||||
else if (key.getText().equals("greedy")) { |
||||
if (value.getText().equals("true")) { |
||||
greedy = true; |
||||
greedySet = true; |
||||
} |
||||
else if (value.getText().equals("false")) { |
||||
greedy = false; |
||||
greedySet = true; |
||||
} |
||||
else { |
||||
grammar.antlrTool.error("Value for greedy must be true or false", grammar.getFilename(), key.getLine(), key.getColumn()); |
||||
} |
||||
} |
||||
else { |
||||
grammar.antlrTool.error("Invalid subrule option: " + key.getText(), grammar.getFilename(), key.getLine(), key.getColumn()); |
||||
} |
||||
} |
||||
|
||||
public String toString() { |
||||
String s = " ("; |
||||
if (initAction != null) { |
||||
s += initAction; |
||||
} |
||||
for (int i = 0; i < alternatives.size(); i++) { |
||||
Alternative alt = getAlternativeAt(i); |
||||
Lookahead cache[] = alt.cache; |
||||
int k = alt.lookaheadDepth; |
||||
// dump lookahead set
|
||||
if (k == GrammarAnalyzer.LOOKAHEAD_DEPTH_INIT) { |
||||
} |
||||
else if (k == GrammarAnalyzer.NONDETERMINISTIC) { |
||||
s += "{?}:"; |
||||
} |
||||
else { |
||||
s += " {"; |
||||
for (int j = 1; j <= k; j++) { |
||||
s += cache[j].toString(",", grammar.tokenManager.getVocabulary()); |
||||
if (j < k && cache[j + 1] != null) s += ";"; |
||||
} |
||||
s += "}:"; |
||||
} |
||||
// dump alternative including pred (if any)
|
||||
AlternativeElement p = alt.head; |
||||
String pred = alt.semPred; |
||||
if (pred != null) { |
||||
s += pred; |
||||
} |
||||
while (p != null) { |
||||
s += p; |
||||
p = p.next; |
||||
} |
||||
if (i < (alternatives.size() - 1)) { |
||||
s += " |"; |
||||
} |
||||
} |
||||
s += " )"; |
||||
return s; |
||||
} |
||||
|
||||
} |
||||
@ -1,43 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/AlternativeElement.java#2 $
|
||||
*/ |
||||
|
||||
abstract class AlternativeElement extends GrammarElement { |
||||
AlternativeElement next; |
||||
protected int autoGenType = AUTO_GEN_NONE; |
||||
|
||||
protected String enclosingRuleName; |
||||
|
||||
public AlternativeElement(Grammar g) { |
||||
super(g); |
||||
} |
||||
|
||||
public AlternativeElement(Grammar g, Token start) { |
||||
super(g, start); |
||||
} |
||||
|
||||
public AlternativeElement(Grammar g, Token start, int autoGenType_) { |
||||
super(g, start); |
||||
autoGenType = autoGenType_; |
||||
} |
||||
|
||||
public int getAutoGenType() { |
||||
return autoGenType; |
||||
} |
||||
|
||||
public void setAutoGenType(int a) { |
||||
autoGenType = a; |
||||
} |
||||
|
||||
public String getLabel() { |
||||
return null; |
||||
} |
||||
|
||||
public void setLabel(String label) { |
||||
} |
||||
} |
||||
@ -1,495 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/BaseAST.java#2 $
|
||||
*/ |
||||
|
||||
|
||||
import java.io.Serializable; |
||||
import java.io.IOException; |
||||
import java.io.Writer; |
||||
|
||||
import com.fr.third.antlr.collections.AST; |
||||
import com.fr.third.antlr.collections.ASTEnumeration; |
||||
import com.fr.third.antlr.collections.impl.ASTEnumerator; |
||||
import com.fr.third.antlr.collections.impl.Vector; |
||||
|
||||
/** |
||||
* A Child-Sibling Tree. |
||||
* |
||||
* A tree with PLUS at the root and with two children 3 and 4 is |
||||
* structured as: |
||||
* |
||||
* PLUS |
||||
* | |
||||
* 3 -- 4 |
||||
* |
||||
* and can be specified easily in LISP notation as |
||||
* |
||||
* (PLUS 3 4) |
||||
* |
||||
* where every '(' starts a new subtree. |
||||
* |
||||
* These trees are particular useful for translators because of |
||||
* the flexibility of the children lists. They are also very easy |
||||
* to walk automatically, whereas trees with specific children |
||||
* reference fields can't easily be walked automatically. |
||||
* |
||||
* This class contains the basic support for an AST. |
||||
* Most people will create ASTs that are subclasses of |
||||
* BaseAST or of CommonAST. |
||||
*/ |
||||
public abstract class BaseAST implements AST, Serializable { |
||||
protected BaseAST down; |
||||
protected BaseAST right; |
||||
|
||||
private static boolean verboseStringConversion = false; |
||||
private static String[] tokenNames = null; |
||||
|
||||
/**Add a node to the end of the child list for this node */ |
||||
public void addChild(AST node) { |
||||
if (node == null) return; |
||||
BaseAST t = this.down; |
||||
if (t != null) { |
||||
while (t.right != null) { |
||||
t = t.right; |
||||
} |
||||
t.right = (BaseAST)node; |
||||
} |
||||
else { |
||||
this.down = (BaseAST)node; |
||||
} |
||||
} |
||||
|
||||
/** How many children does this node have? */ |
||||
public int getNumberOfChildren() { |
||||
BaseAST t = this.down; |
||||
int n = 0; |
||||
if (t != null) { |
||||
n = 1; |
||||
while (t.right != null) { |
||||
t = t.right; |
||||
n++; |
||||
} |
||||
return n; |
||||
} |
||||
return n; |
||||
} |
||||
|
||||
private static void doWorkForFindAll(AST nodeToSearch, |
||||
Vector v, |
||||
AST target, |
||||
boolean partialMatch) |
||||
{ |
||||
// Start walking sibling lists, looking for matches.
|
||||
for (AST sibling = nodeToSearch; sibling != null; sibling = sibling |
||||
.getNextSibling()) { |
||||
if ((partialMatch && sibling.equalsTreePartial(target)) |
||||
|| (!partialMatch && sibling.equalsTree(target))) { |
||||
v.appendElement(sibling); |
||||
} |
||||
// regardless of match or not, check any children for matches
|
||||
if (sibling.getFirstChild() != null) { |
||||
doWorkForFindAll(sibling.getFirstChild(), v, target, partialMatch); |
||||
} |
||||
} |
||||
} |
||||
|
||||
/** Is node t equal to this in terms of token type and text? */ |
||||
public boolean equals(AST t) { |
||||
if (t == null) return false; |
||||
if ( (this.getText()==null && t.getText()!=null) || |
||||
(this.getText()!=null && t.getText()==null) ) |
||||
{ |
||||
return false; |
||||
} |
||||
if ( this.getText()==null && t.getText()==null ) { |
||||
return this.getType() == t.getType(); |
||||
} |
||||
return this.getText().equals(t.getText()) && |
||||
this.getType() == t.getType(); |
||||
} |
||||
|
||||
/** Is t an exact structural and equals() match of this tree. The |
||||
* 'this' reference is considered the start of a sibling list. |
||||
*/ |
||||
public boolean equalsList(AST t) { |
||||
AST sibling; |
||||
|
||||
// the empty tree is not a match of any non-null tree.
|
||||
if (t == null) { |
||||
return false; |
||||
} |
||||
|
||||
// Otherwise, start walking sibling lists. First mismatch, return false.
|
||||
for (sibling = this; |
||||
sibling != null && t != null; |
||||
sibling = sibling.getNextSibling(), t = t.getNextSibling()) |
||||
{ |
||||
// as a quick optimization, check roots first.
|
||||
if (!sibling.equals(t)) { |
||||
return false; |
||||
} |
||||
// if roots match, do full list match test on children.
|
||||
if (sibling.getFirstChild() != null) { |
||||
if (!sibling.getFirstChild().equalsList(t.getFirstChild())) { |
||||
return false; |
||||
} |
||||
} |
||||
// sibling has no kids, make sure t doesn't either
|
||||
else if (t.getFirstChild() != null) { |
||||
return false; |
||||
} |
||||
} |
||||
if (sibling == null && t == null) { |
||||
return true; |
||||
} |
||||
// one sibling list has more than the other
|
||||
return false; |
||||
} |
||||
|
||||
/** Is 'sub' a subtree of this list? |
||||
* The siblings of the root are NOT ignored. |
||||
*/ |
||||
public boolean equalsListPartial(AST sub) { |
||||
AST sibling; |
||||
|
||||
// the empty tree is always a subset of any tree.
|
||||
if (sub == null) { |
||||
return true; |
||||
} |
||||
|
||||
// Otherwise, start walking sibling lists. First mismatch, return false.
|
||||
for (sibling = this; |
||||
sibling != null && sub != null; |
||||
sibling = sibling.getNextSibling(), sub = sub.getNextSibling()) { |
||||
// as a quick optimization, check roots first.
|
||||
if (!sibling.equals(sub)) return false; |
||||
// if roots match, do partial list match test on children.
|
||||
if (sibling.getFirstChild() != null) { |
||||
if (!sibling.getFirstChild().equalsListPartial(sub.getFirstChild())) return false; |
||||
} |
||||
} |
||||
if (sibling == null && sub != null) { |
||||
// nothing left to match in this tree, but subtree has more
|
||||
return false; |
||||
} |
||||
// either both are null or sibling has more, but subtree doesn't
|
||||
return true; |
||||
} |
||||
|
||||
/** Is tree rooted at 'this' equal to 't'? The siblings |
||||
* of 'this' are ignored. |
||||
*/ |
||||
public boolean equalsTree(AST t) { |
||||
// check roots first.
|
||||
if (!this.equals(t)) return false; |
||||
// if roots match, do full list match test on children.
|
||||
if (this.getFirstChild() != null) { |
||||
if (!this.getFirstChild().equalsList(t.getFirstChild())) return false; |
||||
} |
||||
// sibling has no kids, make sure t doesn't either
|
||||
else if (t.getFirstChild() != null) { |
||||
return false; |
||||
} |
||||
return true; |
||||
} |
||||
|
||||
/** Is 't' a subtree of the tree rooted at 'this'? The siblings |
||||
* of 'this' are ignored. |
||||
*/ |
||||
public boolean equalsTreePartial(AST sub) { |
||||
// the empty tree is always a subset of any tree.
|
||||
if (sub == null) { |
||||
return true; |
||||
} |
||||
|
||||
// check roots first.
|
||||
if (!this.equals(sub)) return false; |
||||
// if roots match, do full list partial match test on children.
|
||||
if (this.getFirstChild() != null) { |
||||
if (!this.getFirstChild().equalsListPartial(sub.getFirstChild())) return false; |
||||
} |
||||
return true; |
||||
} |
||||
|
||||
/** Walk the tree looking for all exact subtree matches. Return |
||||
* an ASTEnumerator that lets the caller walk the list |
||||
* of subtree roots found herein. |
||||
*/ |
||||
public ASTEnumeration findAll(AST target) { |
||||
Vector roots = new Vector(10); |
||||
AST sibling; |
||||
|
||||
// the empty tree cannot result in an enumeration
|
||||
if (target == null) { |
||||
return null; |
||||
} |
||||
|
||||
doWorkForFindAll(this, roots, target, false); // find all matches recursively
|
||||
|
||||
return new ASTEnumerator(roots); |
||||
} |
||||
|
||||
/** Walk the tree looking for all subtrees. Return |
||||
* an ASTEnumerator that lets the caller walk the list |
||||
* of subtree roots found herein. |
||||
*/ |
||||
public ASTEnumeration findAllPartial(AST sub) { |
||||
Vector roots = new Vector(10); |
||||
AST sibling; |
||||
|
||||
// the empty tree cannot result in an enumeration
|
||||
if (sub == null) { |
||||
return null; |
||||
} |
||||
|
||||
doWorkForFindAll(this, roots, sub, true); // find all matches recursively
|
||||
|
||||
return new ASTEnumerator(roots); |
||||
} |
||||
|
||||
/** Get the first child of this node; null if not children */ |
||||
public AST getFirstChild() { |
||||
return down; |
||||
} |
||||
|
||||
/** Get the next sibling in line after this one */ |
||||
public AST getNextSibling() { |
||||
return right; |
||||
} |
||||
|
||||
/** Get the token text for this node */ |
||||
public String getText() { |
||||
return ""; |
||||
} |
||||
|
||||
/** Get the token type for this node */ |
||||
public int getType() { |
||||
return 0; |
||||
} |
||||
|
||||
public int getLine() { |
||||
return 0; |
||||
} |
||||
|
||||
public int getColumn() { |
||||
return 0; |
||||
} |
||||
|
||||
public abstract void initialize(int t, String txt); |
||||
|
||||
public abstract void initialize(AST t); |
||||
|
||||
public abstract void initialize(Token t); |
||||
|
||||
/** Remove all children */ |
||||
public void removeChildren() { |
||||
down = null; |
||||
} |
||||
|
||||
public void setFirstChild(AST c) { |
||||
down = (BaseAST)c; |
||||
} |
||||
|
||||
public void setNextSibling(AST n) { |
||||
right = (BaseAST)n; |
||||
} |
||||
|
||||
/** Set the token text for this node */ |
||||
public void setText(String text) { |
||||
} |
||||
|
||||
/** Set the token type for this node */ |
||||
public void setType(int ttype) { |
||||
} |
||||
|
||||
public static void setVerboseStringConversion(boolean verbose, String[] names) { |
||||
verboseStringConversion = verbose; |
||||
tokenNames = names; |
||||
} |
||||
|
||||
/** Return an array of strings that maps token ID to it's text. @since 2.7.3 */ |
||||
public static String[] getTokenNames() { |
||||
return tokenNames; |
||||
} |
||||
|
||||
public String toString() { |
||||
StringBuffer b = new StringBuffer(); |
||||
// if verbose and type name not same as text (keyword probably)
|
||||
if (verboseStringConversion && |
||||
getText() != null && |
||||
!getText().equalsIgnoreCase(tokenNames[getType()]) && |
||||
!getText().equalsIgnoreCase(StringUtils.stripFrontBack(tokenNames[getType()], "\"", "\""))) { |
||||
b.append('['); |
||||
b.append(getText()); |
||||
b.append(",<"); |
||||
b.append(tokenNames[getType()]); |
||||
b.append(">]"); |
||||
return b.toString(); |
||||
} |
||||
return getText(); |
||||
} |
||||
|
||||
/** Print out a child-sibling tree in LISP notation */ |
||||
public String toStringList() { |
||||
AST t = this; |
||||
String ts = ""; |
||||
if (t.getFirstChild() != null) ts += " ("; |
||||
ts += " " + this.toString(); |
||||
if (t.getFirstChild() != null) { |
||||
ts += ((BaseAST)t.getFirstChild()).toStringList(); |
||||
} |
||||
if (t.getFirstChild() != null) ts += " )"; |
||||
if (t.getNextSibling() != null) { |
||||
ts += ((BaseAST)t.getNextSibling()).toStringList(); |
||||
} |
||||
return ts; |
||||
} |
||||
|
||||
public String toStringTree() { |
||||
AST t = this; |
||||
String ts = ""; |
||||
if (t.getFirstChild() != null) ts += " ("; |
||||
ts += " " + this.toString(); |
||||
if (t.getFirstChild() != null) { |
||||
ts += ((BaseAST)t.getFirstChild()).toStringList(); |
||||
} |
||||
if (t.getFirstChild() != null) ts += " )"; |
||||
return ts; |
||||
} |
||||
|
||||
public static String decode(String text) { |
||||
char c, c1, c2, c3, c4, c5; |
||||
StringBuffer n = new StringBuffer(); |
||||
for (int i = 0; i < text.length(); i++) { |
||||
c = text.charAt(i); |
||||
if (c == '&') { |
||||
c1 = text.charAt(i + 1); |
||||
c2 = text.charAt(i + 2); |
||||
c3 = text.charAt(i + 3); |
||||
c4 = text.charAt(i + 4); |
||||
c5 = text.charAt(i + 5); |
||||
|
||||
if (c1 == 'a' && c2 == 'm' && c3 == 'p' && c4 == ';') { |
||||
n.append('&'); |
||||
i += 5; |
||||
} |
||||
else if (c1 == 'l' && c2 == 't' && c3 == ';') { |
||||
n.append('<'); |
||||
i += 4; |
||||
} |
||||
else if (c1 == 'g' && c2 == 't' && c3 == ';') { |
||||
n.append('>'); |
||||
i += 4; |
||||
} |
||||
else if (c1 == 'q' && c2 == 'u' && c3 == 'o' && |
||||
c4 == 't' && c5 == ';') { |
||||
n.append('"'); |
||||
i += 6; |
||||
} |
||||
else if (c1 == 'a' && c2 == 'p' && c3 == 'o' && |
||||
c4 == 's' && c5 == ';') { |
||||
n.append('\''); |
||||
i += 6; |
||||
} |
||||
else |
||||
n.append('&'); |
||||
} |
||||
else |
||||
n.append(c); |
||||
} |
||||
return new String(n); |
||||
} |
||||
|
||||
public static String encode(String text) { |
||||
char c; |
||||
StringBuffer n = new StringBuffer(); |
||||
for (int i = 0; i < text.length(); i++) { |
||||
c = text.charAt(i); |
||||
switch (c) { |
||||
case '&': |
||||
{ |
||||
n.append("&"); |
||||
break; |
||||
} |
||||
case '<': |
||||
{ |
||||
n.append("<"); |
||||
break; |
||||
} |
||||
case '>': |
||||
{ |
||||
n.append(">"); |
||||
break; |
||||
} |
||||
case '"': |
||||
{ |
||||
n.append("""); |
||||
break; |
||||
} |
||||
case '\'': |
||||
{ |
||||
n.append("'"); |
||||
break; |
||||
} |
||||
default : |
||||
{ |
||||
n.append(c); |
||||
break; |
||||
} |
||||
} |
||||
} |
||||
return new String(n); |
||||
} |
||||
|
||||
public void xmlSerializeNode(Writer out) |
||||
throws IOException { |
||||
StringBuffer buf = new StringBuffer(100); |
||||
buf.append('<'); |
||||
buf.append(getClass().getName() + " "); |
||||
buf.append("text=\"" + encode(getText()) + "\" type=\"" + |
||||
getType() + "\"/>"); |
||||
out.write(buf.toString()); |
||||
} |
||||
|
||||
public void xmlSerializeRootOpen(Writer out) |
||||
throws IOException { |
||||
StringBuffer buf = new StringBuffer(100); |
||||
buf.append('<'); |
||||
buf.append(getClass().getName() + " "); |
||||
buf.append("text=\"" + encode(getText()) + "\" type=\"" + |
||||
getType() + "\">\n"); |
||||
out.write(buf.toString()); |
||||
} |
||||
|
||||
public void xmlSerializeRootClose(Writer out) |
||||
throws IOException { |
||||
out.write("</" + getClass().getName() + ">\n"); |
||||
} |
||||
|
||||
public void xmlSerialize(Writer out) throws IOException { |
||||
// print out this node and all siblings
|
||||
for (AST node = this; |
||||
node != null; |
||||
node = node.getNextSibling()) { |
||||
if (node.getFirstChild() == null) { |
||||
// print guts (class name, attributes)
|
||||
((BaseAST)node).xmlSerializeNode(out); |
||||
} |
||||
else { |
||||
((BaseAST)node).xmlSerializeRootOpen(out); |
||||
|
||||
// print children
|
||||
((BaseAST)node.getFirstChild()).xmlSerialize(out); |
||||
|
||||
// print end tag
|
||||
((BaseAST)node).xmlSerializeRootClose(out); |
||||
} |
||||
} |
||||
} |
||||
|
||||
} |
||||
@ -1,32 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/BlockContext.java#2 $
|
||||
*/ |
||||
|
||||
/**BlockContext stores the information needed when creating an |
||||
* alternative (list of elements). Entering a subrule requires |
||||
* that we save this state as each block of alternatives |
||||
* requires state such as "tail of current alternative." |
||||
*/ |
||||
class BlockContext { |
||||
AlternativeBlock block; // current block of alternatives
|
||||
int altNum; // which alt are we accepting 0..n-1
|
||||
BlockEndElement blockEnd; // used if nested
|
||||
|
||||
|
||||
public void addAlternativeElement(AlternativeElement e) { |
||||
currentAlt().addElement(e); |
||||
} |
||||
|
||||
public Alternative currentAlt() { |
||||
return (Alternative)block.alternatives.elementAt(altNum); |
||||
} |
||||
|
||||
public AlternativeElement currentElement() { |
||||
return currentAlt().tail; |
||||
} |
||||
} |
||||
@ -1,31 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/BlockEndElement.java#2 $
|
||||
*/ |
||||
|
||||
/**All alternative blocks are "terminated" by BlockEndElements unless |
||||
* they are rule blocks (in which case they use RuleEndElement). |
||||
*/ |
||||
class BlockEndElement extends AlternativeElement { |
||||
protected boolean[] lock; // for analysis; used to avoid infinite loops
|
||||
protected AlternativeBlock block;// ending blocks know what block they terminate
|
||||
|
||||
|
||||
public BlockEndElement(Grammar g) { |
||||
super(g); |
||||
lock = new boolean[g.maxk + 1]; |
||||
} |
||||
|
||||
public Lookahead look(int k) { |
||||
return grammar.theLLkAnalyzer.look(k, this); |
||||
} |
||||
|
||||
public String toString() { |
||||
//return " [BlkEnd]";
|
||||
return ""; |
||||
} |
||||
} |
||||
@ -1,24 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/BlockWithImpliedExitPath.java#2 $
|
||||
*/ |
||||
|
||||
abstract class BlockWithImpliedExitPath extends AlternativeBlock { |
||||
protected int exitLookaheadDepth; // lookahead needed to handle optional path
|
||||
/** lookahead to bypass block; set |
||||
* by deterministic(). 1..k of Lookahead |
||||
*/ |
||||
protected Lookahead[] exitCache = new Lookahead[grammar.maxk + 1]; |
||||
|
||||
public BlockWithImpliedExitPath(Grammar g) { |
||||
super(g); |
||||
} |
||||
|
||||
public BlockWithImpliedExitPath(Grammar g, Token start) { |
||||
super(g, start, false); |
||||
} |
||||
} |
||||
@ -1,53 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/ByteBuffer.java#2 $
|
||||
*/ |
||||
|
||||
/**A Stream of characters fed to the lexer from a InputStream that can |
||||
* be rewound via mark()/rewind() methods. |
||||
* <p> |
||||
* A dynamic array is used to buffer up all the input characters. Normally, |
||||
* "k" characters are stored in the buffer. More characters may be stored during |
||||
* guess mode (testing syntactic predicate), or when LT(i>k) is referenced. |
||||
* Consumption of characters is deferred. In other words, reading the next |
||||
* character is not done by conume(), but deferred until needed by LA or LT. |
||||
* <p> |
||||
* |
||||
* @see antlr.CharQueue |
||||
*/ |
||||
// SAS: added this class to handle Binary input w/ FileInputStream
|
||||
|
||||
import java.io.IOException; |
||||
import java.io.InputStream; |
||||
|
||||
public class ByteBuffer extends InputBuffer { |
||||
|
||||
// char source
|
||||
public transient InputStream input; |
||||
|
||||
|
||||
/** Create a character buffer */ |
||||
public ByteBuffer(InputStream input_) { |
||||
super(); |
||||
input = input_; |
||||
} |
||||
|
||||
/** Ensure that the character buffer is sufficiently full */ |
||||
public void fill(int amount) throws CharStreamException { |
||||
try { |
||||
syncConsume(); |
||||
// Fill the buffer sufficiently to hold needed characters
|
||||
while (queue.nbrEntries < amount + markerOffset) { |
||||
// Append the next character
|
||||
queue.append((char)input.read()); |
||||
} |
||||
} |
||||
catch (IOException io) { |
||||
throw new CharStreamIOException(io); |
||||
} |
||||
} |
||||
} |
||||
@ -1,53 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/CharBuffer.java#2 $
|
||||
*/ |
||||
|
||||
/**A Stream of characters fed to the lexer from a InputStream that can |
||||
* be rewound via mark()/rewind() methods. |
||||
* <p> |
||||
* A dynamic array is used to buffer up all the input characters. Normally, |
||||
* "k" characters are stored in the buffer. More characters may be stored during |
||||
* guess mode (testing syntactic predicate), or when LT(i>k) is referenced. |
||||
* Consumption of characters is deferred. In other words, reading the next |
||||
* character is not done by conume(), but deferred until needed by LA or LT. |
||||
* <p> |
||||
* |
||||
* @see antlr.CharQueue |
||||
*/ |
||||
|
||||
import java.io.IOException; |
||||
import java.io.Reader; |
||||
|
||||
// SAS: Move most functionality into InputBuffer -- just the file-specific
|
||||
// stuff is in here
|
||||
|
||||
public class CharBuffer extends InputBuffer { |
||||
// char source
|
||||
public transient Reader input; |
||||
|
||||
/** Create a character buffer */ |
||||
public CharBuffer(Reader input_) { // SAS: for proper text i/o
|
||||
super(); |
||||
input = input_; |
||||
} |
||||
|
||||
/** Ensure that the character buffer is sufficiently full */ |
||||
public void fill(int amount) throws CharStreamException { |
||||
try { |
||||
syncConsume(); |
||||
// Fill the buffer sufficiently to hold needed characters
|
||||
while (queue.nbrEntries < amount + markerOffset) { |
||||
// Append the next character
|
||||
queue.append((char)input.read()); |
||||
} |
||||
} |
||||
catch (IOException io) { |
||||
throw new CharStreamIOException(io); |
||||
} |
||||
} |
||||
} |
||||
@ -1,23 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/CharFormatter.java#2 $
|
||||
*/ |
||||
|
||||
/** Interface used by BitSet to format elements of the set when |
||||
* converting to string |
||||
*/ |
||||
public interface CharFormatter { |
||||
|
||||
|
||||
public String escapeChar(int c, boolean forCharLiteral); |
||||
|
||||
public String escapeString(String s); |
||||
|
||||
public String literalChar(int c); |
||||
|
||||
public String literalString(String s); |
||||
} |
||||
@ -1,29 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/CharLiteralElement.java#2 $
|
||||
*/ |
||||
|
||||
class CharLiteralElement extends GrammarAtom { |
||||
|
||||
|
||||
public CharLiteralElement(LexerGrammar g, Token t, boolean inverted, int autoGenType) { |
||||
super(g, t, AUTO_GEN_NONE); |
||||
tokenType = ANTLRLexer.tokenTypeForCharLiteral(t.getText()); |
||||
g.charVocabulary.add(tokenType); |
||||
line = t.getLine(); |
||||
not = inverted; |
||||
this.autoGenType = autoGenType; |
||||
} |
||||
|
||||
public void generate() { |
||||
grammar.generator.gen(this); |
||||
} |
||||
|
||||
public Lookahead look(int k) { |
||||
return grammar.theLLkAnalyzer.look(k, this); |
||||
} |
||||
} |
||||
@ -1,95 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/CharQueue.java#2 $
|
||||
*/ |
||||
|
||||
/** A circular buffer object used by CharBuffer */ |
||||
public class CharQueue { |
||||
/** Physical circular buffer of tokens */ |
||||
protected char[] buffer; |
||||
/** buffer.length-1 for quick modulos */ |
||||
private int sizeLessOne; |
||||
/** physical index of front token */ |
||||
private int offset; |
||||
/** number of tokens in the queue */ |
||||
protected int nbrEntries; |
||||
|
||||
public CharQueue(int minSize) { |
||||
// Find first power of 2 >= to requested size
|
||||
int size; |
||||
if ( minSize<0 ) { |
||||
init(16); // pick some value for them
|
||||
return; |
||||
} |
||||
// check for overflow
|
||||
if ( minSize>=(Integer.MAX_VALUE/2) ) { |
||||
init(Integer.MAX_VALUE); // wow that's big.
|
||||
return; |
||||
} |
||||
for (size = 2; size < minSize; size *= 2) { |
||||
} |
||||
init(size); |
||||
} |
||||
|
||||
/** Add token to end of the queue |
||||
* @param tok The token to add |
||||
*/ |
||||
public final void append(char tok) { |
||||
if (nbrEntries == buffer.length) { |
||||
expand(); |
||||
} |
||||
buffer[(offset + nbrEntries) & sizeLessOne] = tok; |
||||
nbrEntries++; |
||||
} |
||||
|
||||
/** Fetch a token from the queue by index |
||||
* @param idx The index of the token to fetch, where zero is the token at the front of the queue |
||||
*/ |
||||
public final char elementAt(int idx) { |
||||
return buffer[(offset + idx) & sizeLessOne]; |
||||
} |
||||
|
||||
/** Expand the token buffer by doubling its capacity */ |
||||
private final void expand() { |
||||
char[] newBuffer = new char[buffer.length * 2]; |
||||
// Copy the contents to the new buffer
|
||||
// Note that this will store the first logical item in the
|
||||
// first physical array element.
|
||||
for (int i = 0; i < buffer.length; i++) { |
||||
newBuffer[i] = elementAt(i); |
||||
} |
||||
// Re-initialize with new contents, keep old nbrEntries
|
||||
buffer = newBuffer; |
||||
sizeLessOne = buffer.length - 1; |
||||
offset = 0; |
||||
} |
||||
|
||||
/** Initialize the queue. |
||||
* @param size The initial size of the queue |
||||
*/ |
||||
public void init(int size) { |
||||
// Allocate buffer
|
||||
buffer = new char[size]; |
||||
// Other initialization
|
||||
sizeLessOne = size - 1; |
||||
offset = 0; |
||||
nbrEntries = 0; |
||||
} |
||||
|
||||
/** Clear the queue. Leaving the previous buffer alone. |
||||
*/ |
||||
public final void reset() { |
||||
offset = 0; |
||||
nbrEntries = 0; |
||||
} |
||||
|
||||
/** Remove char from front of queue */ |
||||
public final void removeFirst() { |
||||
offset = (offset + 1) & sizeLessOne; |
||||
nbrEntries--; |
||||
} |
||||
} |
||||
@ -1,54 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/CharRangeElement.java#2 $
|
||||
*/ |
||||
|
||||
class CharRangeElement extends AlternativeElement { |
||||
String label; |
||||
protected char begin = 0; |
||||
protected char end = 0; |
||||
protected String beginText; |
||||
protected String endText; |
||||
|
||||
|
||||
public CharRangeElement(LexerGrammar g, Token t1, Token t2, int autoGenType) { |
||||
super(g); |
||||
begin = (char)ANTLRLexer.tokenTypeForCharLiteral(t1.getText()); |
||||
beginText = t1.getText(); |
||||
end = (char)ANTLRLexer.tokenTypeForCharLiteral(t2.getText()); |
||||
endText = t2.getText(); |
||||
line = t1.getLine(); |
||||
// track which characters are referenced in the grammar
|
||||
for (int i = begin; i <= end; i++) { |
||||
g.charVocabulary.add(i); |
||||
} |
||||
this.autoGenType = autoGenType; |
||||
} |
||||
|
||||
public void generate() { |
||||
grammar.generator.gen(this); |
||||
} |
||||
|
||||
public String getLabel() { |
||||
return label; |
||||
} |
||||
|
||||
public Lookahead look(int k) { |
||||
return grammar.theLLkAnalyzer.look(k, this); |
||||
} |
||||
|
||||
public void setLabel(String label_) { |
||||
label = label_; |
||||
} |
||||
|
||||
public String toString() { |
||||
if (label != null) |
||||
return " " + label + ":" + beginText + ".." + endText; |
||||
else |
||||
return " " + beginText + ".." + endText; |
||||
} |
||||
} |
||||
@ -1,409 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/CharScanner.java#2 $
|
||||
*/ |
||||
|
||||
import java.util.Hashtable; |
||||
|
||||
import com.fr.third.antlr.collections.impl.BitSet; |
||||
|
||||
|
||||
public abstract class CharScanner implements TokenStream { |
||||
static final char NO_CHAR = 0; |
||||
public static final char EOF_CHAR = (char)-1; |
||||
protected ANTLRStringBuffer text; // text of current token
|
||||
|
||||
protected boolean saveConsumedInput = true; // does consume() save characters?
|
||||
protected Class tokenObjectClass; // what kind of tokens to create?
|
||||
protected boolean caseSensitive = true; |
||||
protected boolean caseSensitiveLiterals = true; |
||||
protected Hashtable literals; // set by subclass
|
||||
|
||||
/** Tab chars are handled by tab() according to this value; override |
||||
* method to do anything weird with tabs. |
||||
*/ |
||||
protected int tabsize = 8; |
||||
|
||||
protected Token _returnToken = null; // used to return tokens w/o using return val.
|
||||
|
||||
// Hash string used so we don't new one every time to check literals table
|
||||
protected ANTLRHashString hashString; |
||||
|
||||
protected LexerSharedInputState inputState; |
||||
|
||||
/** Used during filter mode to indicate that path is desired. |
||||
* A subsequent scan error will report an error as usual if |
||||
* acceptPath=true; |
||||
*/ |
||||
protected boolean commitToPath = false; |
||||
|
||||
/** Used to keep track of indentdepth for traceIn/Out */ |
||||
protected int traceDepth = 0; |
||||
|
||||
public CharScanner() { |
||||
text = new ANTLRStringBuffer(); |
||||
hashString = new ANTLRHashString(this); |
||||
//TODO alex mod
|
||||
// setTokenObjectClass("antlr.CommonToken");
|
||||
setTokenObjectClass("com.fr.third.antlr.CommonToken"); |
||||
} |
||||
|
||||
public CharScanner(InputBuffer cb) { // SAS: use generic buffer
|
||||
this(); |
||||
inputState = new LexerSharedInputState(cb); |
||||
} |
||||
|
||||
public CharScanner(LexerSharedInputState sharedState) { |
||||
this(); |
||||
inputState = sharedState; |
||||
} |
||||
|
||||
public void append(char c) { |
||||
if (saveConsumedInput) { |
||||
text.append(c); |
||||
} |
||||
} |
||||
|
||||
public void append(String s) { |
||||
if (saveConsumedInput) { |
||||
text.append(s); |
||||
} |
||||
} |
||||
|
||||
public void commit() { |
||||
inputState.input.commit(); |
||||
} |
||||
|
||||
public void consume() throws CharStreamException { |
||||
if (inputState.guessing == 0) { |
||||
char c = LA(1); |
||||
if (caseSensitive) { |
||||
append(c); |
||||
} |
||||
else { |
||||
// use input.LA(), not LA(), to get original case
|
||||
// CharScanner.LA() would toLower it.
|
||||
append(inputState.input.LA(1)); |
||||
} |
||||
if (c == '\t') { |
||||
tab(); |
||||
} |
||||
else { |
||||
inputState.column++; |
||||
} |
||||
} |
||||
inputState.input.consume(); |
||||
} |
||||
|
||||
/** Consume chars until one matches the given char */ |
||||
public void consumeUntil(int c) throws CharStreamException { |
||||
while (LA(1) != EOF_CHAR && LA(1) != c) { |
||||
consume(); |
||||
} |
||||
} |
||||
|
||||
/** Consume chars until one matches the given set */ |
||||
public void consumeUntil(BitSet set) throws CharStreamException { |
||||
while (LA(1) != EOF_CHAR && !set.member(LA(1))) { |
||||
consume(); |
||||
} |
||||
} |
||||
|
||||
public boolean getCaseSensitive() { |
||||
return caseSensitive; |
||||
} |
||||
|
||||
public final boolean getCaseSensitiveLiterals() { |
||||
return caseSensitiveLiterals; |
||||
} |
||||
|
||||
public int getColumn() { |
||||
return inputState.column; |
||||
} |
||||
|
||||
public void setColumn(int c) { |
||||
inputState.column = c; |
||||
} |
||||
|
||||
public boolean getCommitToPath() { |
||||
return commitToPath; |
||||
} |
||||
|
||||
public String getFilename() { |
||||
return inputState.filename; |
||||
} |
||||
|
||||
public InputBuffer getInputBuffer() { |
||||
return inputState.input; |
||||
} |
||||
|
||||
public LexerSharedInputState getInputState() { |
||||
return inputState; |
||||
} |
||||
|
||||
public void setInputState(LexerSharedInputState state) { |
||||
inputState = state; |
||||
} |
||||
|
||||
public int getLine() { |
||||
return inputState.line; |
||||
} |
||||
|
||||
/** return a copy of the current text buffer */ |
||||
public String getText() { |
||||
return text.toString(); |
||||
} |
||||
|
||||
public Token getTokenObject() { |
||||
return _returnToken; |
||||
} |
||||
|
||||
public char LA(int i) throws CharStreamException { |
||||
if (caseSensitive) { |
||||
return inputState.input.LA(i); |
||||
} |
||||
else { |
||||
return toLower(inputState.input.LA(i)); |
||||
} |
||||
} |
||||
|
||||
protected Token makeToken(int t) { |
||||
try { |
||||
Token tok = (Token)tokenObjectClass.newInstance(); |
||||
tok.setType(t); |
||||
tok.setColumn(inputState.tokenStartColumn); |
||||
tok.setLine(inputState.tokenStartLine); |
||||
// tracking real start line now: tok.setLine(inputState.line);
|
||||
return tok; |
||||
} |
||||
catch (InstantiationException ie) { |
||||
panic("can't instantiate token: " + tokenObjectClass); |
||||
} |
||||
catch (IllegalAccessException iae) { |
||||
panic("Token class is not accessible" + tokenObjectClass); |
||||
} |
||||
return Token.badToken; |
||||
} |
||||
|
||||
public int mark() { |
||||
return inputState.input.mark(); |
||||
} |
||||
|
||||
public void match(char c) throws MismatchedCharException, CharStreamException { |
||||
if (LA(1) != c) { |
||||
throw new MismatchedCharException(LA(1), c, false, this); |
||||
} |
||||
consume(); |
||||
} |
||||
|
||||
public void match(BitSet b) throws MismatchedCharException, CharStreamException { |
||||
if (!b.member(LA(1))) { |
||||
throw new MismatchedCharException(LA(1), b, false, this); |
||||
} |
||||
else { |
||||
consume(); |
||||
} |
||||
} |
||||
|
||||
public void match(String s) throws MismatchedCharException, CharStreamException { |
||||
int len = s.length(); |
||||
for (int i = 0; i < len; i++) { |
||||
if (LA(1) != s.charAt(i)) { |
||||
throw new MismatchedCharException(LA(1), s.charAt(i), false, this); |
||||
} |
||||
consume(); |
||||
} |
||||
} |
||||
|
||||
public void matchNot(char c) throws MismatchedCharException, CharStreamException { |
||||
if (LA(1) == c) { |
||||
throw new MismatchedCharException(LA(1), c, true, this); |
||||
} |
||||
consume(); |
||||
} |
||||
|
||||
public void matchRange(char c1, char c2) throws MismatchedCharException, CharStreamException { |
||||
if (LA(1) < c1 || LA(1) > c2) throw new MismatchedCharException(LA(1), c1, c2, false, this); |
||||
consume(); |
||||
} |
||||
|
||||
public void newline() { |
||||
inputState.line++; |
||||
inputState.column = 1; |
||||
} |
||||
|
||||
/** advance the current column number by an appropriate amount |
||||
* according to tab size. This method is called from consume(). |
||||
*/ |
||||
public void tab() { |
||||
int c = getColumn(); |
||||
int nc = ( ((c-1)/tabsize) + 1) * tabsize + 1; // calculate tab stop
|
||||
setColumn( nc ); |
||||
} |
||||
|
||||
public void setTabSize( int size ) { |
||||
tabsize = size; |
||||
} |
||||
|
||||
public int getTabSize() { |
||||
return tabsize; |
||||
} |
||||
|
||||
/** @see #panic(String) |
||||
*/ |
||||
public void panic() { |
||||
System.err.println("CharScanner: panic"); |
||||
Utils.error(""); |
||||
} |
||||
|
||||
/** This method is executed by ANTLR internally when it detected an illegal |
||||
* state that cannot be recovered from. |
||||
* The default implementation of this method calls |
||||
* {@link java.lang.System.exit(int)} and writes directly to |
||||
* {@link java.lang.System.err)} , which is usually not appropriate when |
||||
* a translator is embedded into a larger application. <em>It is highly |
||||
* recommended that this method be overridden to handle the error in a |
||||
* way appropriate for your application (e.g. throw an unchecked |
||||
* exception)</em>. |
||||
*/ |
||||
public void panic(String s) { |
||||
System.err.println("CharScanner; panic: " + s); |
||||
Utils.error(s); |
||||
} |
||||
|
||||
/** Parser error-reporting function can be overridden in subclass */ |
||||
public void reportError(RecognitionException ex) { |
||||
System.err.println(ex); |
||||
} |
||||
|
||||
/** Parser error-reporting function can be overridden in subclass */ |
||||
public void reportError(String s) { |
||||
if (getFilename() == null) { |
||||
System.err.println("error: " + s); |
||||
} |
||||
else { |
||||
System.err.println(getFilename() + ": error: " + s); |
||||
} |
||||
} |
||||
|
||||
/** Parser warning-reporting function can be overridden in subclass */ |
||||
public void reportWarning(String s) { |
||||
if (getFilename() == null) { |
||||
System.err.println("warning: " + s); |
||||
} |
||||
else { |
||||
System.err.println(getFilename() + ": warning: " + s); |
||||
} |
||||
} |
||||
|
||||
public void resetText() { |
||||
text.setLength(0); |
||||
inputState.tokenStartColumn = inputState.column; |
||||
inputState.tokenStartLine = inputState.line; |
||||
} |
||||
|
||||
public void rewind(int pos) { |
||||
inputState.input.rewind(pos); |
||||
// RK: should not be here, it is messing up column calculation
|
||||
// setColumn(inputState.tokenStartColumn);
|
||||
} |
||||
|
||||
public void setCaseSensitive(boolean t) { |
||||
caseSensitive = t; |
||||
} |
||||
|
||||
public void setCommitToPath(boolean commit) { |
||||
commitToPath = commit; |
||||
} |
||||
|
||||
public void setFilename(String f) { |
||||
inputState.filename = f; |
||||
} |
||||
|
||||
public void setLine(int line) { |
||||
inputState.line = line; |
||||
} |
||||
|
||||
public void setText(String s) { |
||||
resetText(); |
||||
text.append(s); |
||||
} |
||||
|
||||
public void setTokenObjectClass(String cl) { |
||||
try { |
||||
tokenObjectClass = Utils.loadClass(cl); |
||||
} |
||||
catch (ClassNotFoundException ce) { |
||||
panic("ClassNotFoundException: " + cl); |
||||
} |
||||
} |
||||
|
||||
// Test the token text against the literals table
|
||||
// Override this method to perform a different literals test
|
||||
public int testLiteralsTable(int ttype) { |
||||
hashString.setBuffer(text.getBuffer(), text.length()); |
||||
Integer literalsIndex = (Integer)literals.get(hashString); |
||||
if (literalsIndex != null) { |
||||
ttype = literalsIndex.intValue(); |
||||
} |
||||
return ttype; |
||||
} |
||||
|
||||
/** Test the text passed in against the literals table |
||||
* Override this method to perform a different literals test |
||||
* This is used primarily when you want to test a portion of |
||||
* a token. |
||||
*/ |
||||
public int testLiteralsTable(String text, int ttype) { |
||||
ANTLRHashString s = new ANTLRHashString(text, this); |
||||
Integer literalsIndex = (Integer)literals.get(s); |
||||
if (literalsIndex != null) { |
||||
ttype = literalsIndex.intValue(); |
||||
} |
||||
return ttype; |
||||
} |
||||
|
||||
// Override this method to get more specific case handling
|
||||
public char toLower(char c) { |
||||
return Character.toLowerCase(c); |
||||
} |
||||
|
||||
public void traceIndent() { |
||||
for (int i = 0; i < traceDepth; i++) |
||||
System.out.print(' '); |
||||
} |
||||
|
||||
public void traceIn(String rname) throws CharStreamException { |
||||
traceDepth += 1; |
||||
traceIndent(); |
||||
System.out.println("> lexer " + rname + "; c==" + LA(1)); |
||||
} |
||||
|
||||
public void traceOut(String rname) throws CharStreamException { |
||||
traceIndent(); |
||||
System.out.println("< lexer " + rname + "; c==" + LA(1)); |
||||
traceDepth -= 1; |
||||
} |
||||
|
||||
/** This method is called by YourLexer.nextToken() when the lexer has |
||||
* hit EOF condition. EOF is NOT a character. |
||||
* This method is not called if EOF is reached during |
||||
* syntactic predicate evaluation or during evaluation |
||||
* of normal lexical rules, which presumably would be |
||||
* an IOException. This traps the "normal" EOF condition. |
||||
* |
||||
* uponEOF() is called after the complete evaluation of |
||||
* the previous token and only if your parser asks |
||||
* for another token beyond that last non-EOF token. |
||||
* |
||||
* You might want to throw token or char stream exceptions |
||||
* like: "Heh, premature eof" or a retry stream exception |
||||
* ("I found the end of this file, go back to referencing file"). |
||||
*/ |
||||
public void uponEOF() throws TokenStreamException, CharStreamException { |
||||
} |
||||
} |
||||
@ -1,21 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/CharStreamException.java#2 $
|
||||
*/ |
||||
|
||||
/** |
||||
* Anything that goes wrong while generating a stream of characters |
||||
*/ |
||||
public class CharStreamException extends ANTLRException { |
||||
/** |
||||
* CharStreamException constructor comment. |
||||
* @param s java.lang.String |
||||
*/ |
||||
public CharStreamException(String s) { |
||||
super(s); |
||||
} |
||||
} |
||||
@ -1,22 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/CharStreamIOException.java#2 $
|
||||
*/ |
||||
|
||||
import java.io.IOException; |
||||
|
||||
/** |
||||
* Wrap an IOException in a CharStreamException |
||||
*/ |
||||
public class CharStreamIOException extends CharStreamException { |
||||
public IOException io; |
||||
|
||||
public CharStreamIOException(IOException io) { |
||||
super(io.getMessage()); |
||||
this.io = io; |
||||
} |
||||
} |
||||
@ -1,663 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/CodeGenerator.java#2 $
|
||||
*/ |
||||
|
||||
import java.io.IOException; |
||||
import java.io.PrintWriter; |
||||
|
||||
import com.fr.third.antlr.collections.impl.BitSet; |
||||
import com.fr.third.antlr.collections.impl.Vector; |
||||
|
||||
|
||||
/**A generic ANTLR code generator. All code generators |
||||
* Derive from this class. |
||||
* |
||||
* <p> |
||||
* A CodeGenerator knows about a Grammar data structure and |
||||
* a grammar analyzer. The Grammar is walked to generate the |
||||
* appropriate code for both a parser and lexer (if present). |
||||
* This interface may change slightly so that the lexer is |
||||
* itself living inside of a Grammar object (in which case, |
||||
* this class generates only one recognizer). The main method |
||||
* to call is <tt>gen()</tt>, which initiates all code gen. |
||||
* |
||||
* <p> |
||||
* The interaction of the code generator with the analyzer is |
||||
* simple: each subrule block calls deterministic() before generating |
||||
* code for the block. Method deterministic() sets lookahead caches |
||||
* in each Alternative object. Technically, a code generator |
||||
* doesn't need the grammar analyzer if all lookahead analysis |
||||
* is done at runtime, but this would result in a slower parser. |
||||
* |
||||
* <p> |
||||
* This class provides a set of support utilities to handle argument |
||||
* list parsing and so on. |
||||
* |
||||
* @author Terence Parr, John Lilley |
||||
* @version 2.00a |
||||
* @see com.fr.third.antlr.JavaCodeGenerator |
||||
* @see com.fr.third.antlr.DiagnosticCodeGenerator |
||||
* @see com.fr.third.antlr.LLkAnalyzer |
||||
* @see com.fr.third.antlr.Grammar |
||||
* @see com.fr.third.antlr.AlternativeElement |
||||
* @see com.fr.third.antlr.Lookahead |
||||
*/ |
||||
public abstract class CodeGenerator { |
||||
protected com.fr.third.antlr.Tool antlrTool; |
||||
|
||||
/** Current tab indentation for code output */ |
||||
protected int tabs = 0; |
||||
|
||||
/** Current output Stream */ |
||||
transient protected PrintWriter currentOutput; // SAS: for proper text i/o
|
||||
|
||||
/** The grammar for which we generate code */ |
||||
protected Grammar grammar = null; |
||||
|
||||
/** List of all bitsets that must be dumped. These are Vectors of BitSet. */ |
||||
protected Vector bitsetsUsed; |
||||
|
||||
/** The grammar behavior */ |
||||
protected DefineGrammarSymbols behavior; |
||||
|
||||
/** The LLk analyzer */ |
||||
protected LLkGrammarAnalyzer analyzer; |
||||
|
||||
/** Object used to format characters in the target language. |
||||
* subclass must initialize this to the language-specific formatter |
||||
*/ |
||||
protected CharFormatter charFormatter; |
||||
|
||||
/** Use option "codeGenDebug" to generate debugging output */ |
||||
protected boolean DEBUG_CODE_GENERATOR = false; |
||||
|
||||
/** Default values for code-generation thresholds */ |
||||
protected static final int DEFAULT_MAKE_SWITCH_THRESHOLD = 2; |
||||
protected static final int DEFAULT_BITSET_TEST_THRESHOLD = 4; |
||||
|
||||
/** If there are more than 8 long words to init in a bitset, |
||||
* try to optimize it; e.g., detect runs of -1L and 0L. |
||||
*/ |
||||
protected static final int BITSET_OPTIMIZE_INIT_THRESHOLD = 8; |
||||
|
||||
/** This is a hint for the language-specific code generator. |
||||
* A switch() or language-specific equivalent will be generated instead |
||||
* of a series of if/else statements for blocks with number of alternates |
||||
* greater than or equal to this number of non-predicated LL(1) alternates. |
||||
* This is modified by the grammar option "codeGenMakeSwitchThreshold" |
||||
*/ |
||||
protected int makeSwitchThreshold = DEFAULT_MAKE_SWITCH_THRESHOLD; |
||||
|
||||
/** This is a hint for the language-specific code generator. |
||||
* A bitset membership test will be generated instead of an |
||||
* ORed series of LA(k) comparisions for lookahead sets with |
||||
* degree greater than or equal to this value. |
||||
* This is modified by the grammar option "codeGenBitsetTestThreshold" |
||||
*/ |
||||
protected int bitsetTestThreshold = DEFAULT_BITSET_TEST_THRESHOLD; |
||||
|
||||
private static boolean OLD_ACTION_TRANSLATOR = true; |
||||
|
||||
public static String TokenTypesFileSuffix = "TokenTypes"; |
||||
public static String TokenTypesFileExt = ".txt"; |
||||
|
||||
/** Construct code generator base class */ |
||||
public CodeGenerator() { |
||||
} |
||||
|
||||
/** Output a String to the currentOutput stream. |
||||
* Ignored if string is null. |
||||
* @param s The string to output |
||||
*/ |
||||
protected void _print(String s) { |
||||
if (s != null) { |
||||
currentOutput.print(s); |
||||
} |
||||
} |
||||
|
||||
/** Print an action without leading tabs, attempting to |
||||
* preserve the current indentation level for multi-line actions |
||||
* Ignored if string is null. |
||||
* @param s The action string to output |
||||
*/ |
||||
protected void _printAction(String s) { |
||||
if (s == null) { |
||||
return; |
||||
} |
||||
|
||||
// Skip leading newlines, tabs and spaces
|
||||
int start = 0; |
||||
while (start < s.length() && Character.isSpaceChar(s.charAt(start))) { |
||||
start++; |
||||
} |
||||
|
||||
// Skip leading newlines, tabs and spaces
|
||||
int end = s.length() - 1; |
||||
while (end > start && Character.isSpaceChar(s.charAt(end))) { |
||||
end--; |
||||
} |
||||
|
||||
char c = 0; |
||||
for (int i = start; i <= end;) { |
||||
c = s.charAt(i); |
||||
i++; |
||||
boolean newline = false; |
||||
switch (c) { |
||||
case '\n': |
||||
newline = true; |
||||
break; |
||||
case '\r': |
||||
if (i <= end && s.charAt(i) == '\n') { |
||||
i++; |
||||
} |
||||
newline = true; |
||||
break; |
||||
default: |
||||
currentOutput.print(c); |
||||
break; |
||||
} |
||||
if (newline) { |
||||
currentOutput.println(); |
||||
printTabs(); |
||||
// Absorb leading whitespace
|
||||
while (i <= end && Character.isSpaceChar(s.charAt(i))) { |
||||
i++; |
||||
} |
||||
newline = false; |
||||
} |
||||
} |
||||
currentOutput.println(); |
||||
} |
||||
|
||||
/** Output a String followed by newline, to the currentOutput stream. |
||||
* Ignored if string is null. |
||||
* @param s The string to output |
||||
*/ |
||||
protected void _println(String s) { |
||||
if (s != null) { |
||||
currentOutput.println(s); |
||||
} |
||||
} |
||||
|
||||
/** Test if a set element array represents a contiguous range. |
||||
* @param elems The array of elements representing the set, usually from BitSet.toArray(). |
||||
* @return true if the elements are a contiguous range (with two or more). |
||||
*/ |
||||
public static boolean elementsAreRange(int[] elems) { |
||||
if (elems.length == 0) { |
||||
return false; |
||||
} |
||||
int begin = elems[0]; |
||||
int end = elems[elems.length - 1]; |
||||
if (elems.length <= 2) { |
||||
// Not enough elements for a range expression
|
||||
return false; |
||||
} |
||||
if (end - begin + 1 > elems.length) { |
||||
// The set does not represent a contiguous range
|
||||
return false; |
||||
} |
||||
int v = begin + 1; |
||||
for (int i = 1; i < elems.length - 1; i++) { |
||||
if (v != elems[i]) { |
||||
// The set does not represent a contiguous range
|
||||
return false; |
||||
} |
||||
v++; |
||||
} |
||||
return true; |
||||
} |
||||
|
||||
/** Get the identifier portion of an argument-action token. |
||||
* The ID of an action is assumed to be a trailing identifier. |
||||
* Specific code-generators may want to override this |
||||
* if the language has unusual declaration syntax. |
||||
* @param t The action token |
||||
* @return A string containing the text of the identifier |
||||
*/ |
||||
protected String extractIdOfAction(Token t) { |
||||
return extractIdOfAction(t.getText(), t.getLine(), t.getColumn()); |
||||
} |
||||
|
||||
/** Get the identifier portion of an argument-action. |
||||
* The ID of an action is assumed to be a trailing identifier. |
||||
* Specific code-generators may want to override this |
||||
* if the language has unusual declaration syntax. |
||||
* @param s The action text |
||||
* @param line Line used for error reporting. |
||||
* @param column Line used for error reporting. |
||||
* @return A string containing the text of the identifier |
||||
*/ |
||||
protected String extractIdOfAction(String s, int line, int column) { |
||||
s = removeAssignmentFromDeclaration(s); |
||||
// Search back from the end for a non alphanumeric. That marks the
|
||||
// beginning of the identifier
|
||||
for (int i = s.length() - 2; i >= 0; i--) { |
||||
// TODO: make this work for language-independent identifiers?
|
||||
if (!Character.isLetterOrDigit(s.charAt(i)) && s.charAt(i) != '_') { |
||||
// Found end of type part
|
||||
return s.substring(i + 1); |
||||
} |
||||
} |
||||
// Something is bogus, but we cannot parse the language-specific
|
||||
// actions any better. The compiler will have to catch the problem.
|
||||
antlrTool.warning("Ill-formed action", grammar.getFilename(), line, column); |
||||
return ""; |
||||
} |
||||
|
||||
/** Get the type string out of an argument-action token. |
||||
* The type of an action is assumed to precede a trailing identifier |
||||
* Specific code-generators may want to override this |
||||
* if the language has unusual declaration syntax. |
||||
* @param t The action token |
||||
* @return A string containing the text of the type |
||||
*/ |
||||
protected String extractTypeOfAction(Token t) { |
||||
return extractTypeOfAction(t.getText(), t.getLine(), t.getColumn()); |
||||
} |
||||
|
||||
/** Get the type portion of an argument-action. |
||||
* The type of an action is assumed to precede a trailing identifier |
||||
* Specific code-generators may want to override this |
||||
* if the language has unusual declaration syntax. |
||||
* @param s The action text |
||||
* @param line Line used for error reporting. |
||||
* @return A string containing the text of the type |
||||
*/ |
||||
protected String extractTypeOfAction(String s, int line, int column) { |
||||
s = removeAssignmentFromDeclaration(s); |
||||
// Search back from the end for a non alphanumeric. That marks the
|
||||
// beginning of the identifier
|
||||
for (int i = s.length() - 2; i >= 0; i--) { |
||||
// TODO: make this work for language-independent identifiers?
|
||||
if (!Character.isLetterOrDigit(s.charAt(i)) && s.charAt(i) != '_') { |
||||
// Found end of type part
|
||||
return s.substring(0, i + 1); |
||||
} |
||||
} |
||||
// Something is bogus, but we cannot parse the language-specific
|
||||
// actions any better. The compiler will have to catch the problem.
|
||||
antlrTool.warning("Ill-formed action", grammar.getFilename(), line, column); |
||||
return ""; |
||||
} |
||||
|
||||
/** Generate the code for all grammars |
||||
*/ |
||||
public abstract void gen(); |
||||
|
||||
/** Generate code for the given grammar element. |
||||
* @param action The {...} action to generate |
||||
*/ |
||||
public abstract void gen(ActionElement action); |
||||
|
||||
/** Generate code for the given grammar element. |
||||
* @param blk The "x|y|z|..." block to generate |
||||
*/ |
||||
public abstract void gen(AlternativeBlock blk); |
||||
|
||||
/** Generate code for the given grammar element. |
||||
* @param end The block-end element to generate. Block-end |
||||
* elements are synthesized by the grammar parser to represent |
||||
* the end of a block. |
||||
*/ |
||||
public abstract void gen(BlockEndElement end); |
||||
|
||||
/** Generate code for the given grammar element. |
||||
* @param atom The character literal reference to generate |
||||
*/ |
||||
public abstract void gen(CharLiteralElement atom); |
||||
|
||||
/** Generate code for the given grammar element. |
||||
* @param r The character-range reference to generate |
||||
*/ |
||||
public abstract void gen(CharRangeElement r); |
||||
|
||||
/** Generate the code for a parser */ |
||||
public abstract void gen(LexerGrammar g) throws IOException; |
||||
|
||||
/** Generate code for the given grammar element. |
||||
* @param blk The (...)+ block to generate |
||||
*/ |
||||
public abstract void gen(OneOrMoreBlock blk); |
||||
|
||||
/** Generate the code for a parser */ |
||||
public abstract void gen(ParserGrammar g) throws IOException; |
||||
|
||||
/** Generate code for the given grammar element. |
||||
* @param rr The rule-reference to generate |
||||
*/ |
||||
public abstract void gen(RuleRefElement rr); |
||||
|
||||
/** Generate code for the given grammar element. |
||||
* @param atom The string-literal reference to generate |
||||
*/ |
||||
public abstract void gen(StringLiteralElement atom); |
||||
|
||||
/** Generate code for the given grammar element. |
||||
* @param r The token-range reference to generate |
||||
*/ |
||||
public abstract void gen(TokenRangeElement r); |
||||
|
||||
/** Generate code for the given grammar element. |
||||
* @param atom The token-reference to generate |
||||
*/ |
||||
public abstract void gen(TokenRefElement atom); |
||||
|
||||
/** Generate code for the given grammar element. |
||||
* @param blk The tree to generate code for. |
||||
*/ |
||||
public abstract void gen(TreeElement t); |
||||
|
||||
/** Generate the code for a parser */ |
||||
public abstract void gen(TreeWalkerGrammar g) throws IOException; |
||||
|
||||
/** Generate code for the given grammar element. |
||||
* @param wc The wildcard element to generate |
||||
*/ |
||||
public abstract void gen(WildcardElement wc); |
||||
|
||||
/** Generate code for the given grammar element. |
||||
* @param blk The (...)* block to generate |
||||
*/ |
||||
public abstract void gen(ZeroOrMoreBlock blk); |
||||
|
||||
/** Generate the token types as a text file for persistence across shared lexer/parser */ |
||||
protected void genTokenInterchange(TokenManager tm) throws IOException { |
||||
// Open the token output Java file and set the currentOutput stream
|
||||
String fName = tm.getName() + TokenTypesFileSuffix + TokenTypesFileExt; |
||||
currentOutput = antlrTool.openOutputFile(fName); |
||||
|
||||
println("// $ANTLR " + Tool.version + ": " + |
||||
antlrTool.fileMinusPath(antlrTool.grammarFile) + |
||||
" -> " + |
||||
fName + |
||||
"$"); |
||||
|
||||
tabs = 0; |
||||
|
||||
// Header
|
||||
println(tm.getName() + " // output token vocab name"); |
||||
|
||||
// Generate a definition for each token type
|
||||
Vector v = tm.getVocabulary(); |
||||
for (int i = Token.MIN_USER_TYPE; i < v.size(); i++) { |
||||
String s = (String)v.elementAt(i); |
||||
if (DEBUG_CODE_GENERATOR) { |
||||
System.out.println("gen persistence file entry for: " + s); |
||||
} |
||||
if (s != null && !s.startsWith("<")) { |
||||
// if literal, find label
|
||||
if (s.startsWith("\"")) { |
||||
StringLiteralSymbol sl = (StringLiteralSymbol)tm.getTokenSymbol(s); |
||||
if (sl != null && sl.label != null) { |
||||
print(sl.label + "="); |
||||
} |
||||
println(s + "=" + i); |
||||
} |
||||
else { |
||||
print(s); |
||||
// check for a paraphrase
|
||||
TokenSymbol ts = (TokenSymbol)tm.getTokenSymbol(s); |
||||
if (ts == null) { |
||||
antlrTool.warning("undefined token symbol: " + s); |
||||
} |
||||
else { |
||||
if (ts.getParaphrase() != null) { |
||||
print("(" + ts.getParaphrase() + ")"); |
||||
} |
||||
} |
||||
println("=" + i); |
||||
} |
||||
} |
||||
} |
||||
|
||||
// Close the tokens output file
|
||||
currentOutput.close(); |
||||
currentOutput = null; |
||||
} |
||||
|
||||
/** Process a string for an simple expression for use in xx/action.g |
||||
* it is used to cast simple tokens/references to the right type for |
||||
* the generated language. |
||||
* @param str A String. |
||||
*/ |
||||
public String processStringForASTConstructor(String str) { |
||||
return str; |
||||
} |
||||
|
||||
/** Get a string for an expression to generate creation of an AST subtree. |
||||
* @param v A Vector of String, where each element is an expression in the target language yielding an AST node. |
||||
*/ |
||||
public abstract String getASTCreateString(Vector v); |
||||
|
||||
/** Get a string for an expression to generate creating of an AST node |
||||
* @param str The text of the arguments to the AST construction |
||||
*/ |
||||
public abstract String getASTCreateString(GrammarAtom atom, String str); |
||||
|
||||
/** Given the index of a bitset in the bitset list, generate a unique name. |
||||
* Specific code-generators may want to override this |
||||
* if the language does not allow '_' or numerals in identifiers. |
||||
* @param index The index of the bitset in the bitset list. |
||||
*/ |
||||
protected String getBitsetName(int index) { |
||||
return "_tokenSet_" + index; |
||||
} |
||||
|
||||
public static String encodeLexerRuleName(String id) { |
||||
return "m" + id; |
||||
} |
||||
|
||||
public static String decodeLexerRuleName(String id) { |
||||
if ( id==null ) { |
||||
return null; |
||||
} |
||||
return id.substring(1,id.length()); |
||||
} |
||||
|
||||
/** Map an identifier to it's corresponding tree-node variable. |
||||
* This is context-sensitive, depending on the rule and alternative |
||||
* being generated |
||||
* @param id The identifier name to map |
||||
* @param forInput true if the input tree node variable is to be returned, otherwise the output variable is returned. |
||||
* @return The mapped id (which may be the same as the input), or null if the mapping is invalid due to duplicates |
||||
*/ |
||||
public abstract String mapTreeId(String id, ActionTransInfo tInfo); |
||||
|
||||
/** Add a bitset to the list of bitsets to be generated. |
||||
* if the bitset is already in the list, ignore the request. |
||||
* Always adds the bitset to the end of the list, so the |
||||
* caller can rely on the position of bitsets in the list. |
||||
* The returned position can be used to format the bitset |
||||
* name, since it is invariant. |
||||
* @param p Bit set to mark for code generation |
||||
* @param forParser true if the bitset is used for the parser, false for the lexer |
||||
* @return The position of the bitset in the list. |
||||
*/ |
||||
protected int markBitsetForGen(BitSet p) { |
||||
// Is the bitset (or an identical one) already marked for gen?
|
||||
for (int i = 0; i < bitsetsUsed.size(); i++) { |
||||
BitSet set = (BitSet)bitsetsUsed.elementAt(i); |
||||
if (p.equals(set)) { |
||||
// Use the identical one already stored
|
||||
return i; |
||||
} |
||||
} |
||||
|
||||
// Add the new bitset
|
||||
bitsetsUsed.appendElement(p.clone()); |
||||
return bitsetsUsed.size() - 1; |
||||
} |
||||
|
||||
/** Output tab indent followed by a String, to the currentOutput stream. |
||||
* Ignored if string is null. |
||||
* @param s The string to output. |
||||
*/ |
||||
protected void print(String s) { |
||||
if (s != null) { |
||||
printTabs(); |
||||
currentOutput.print(s); |
||||
} |
||||
} |
||||
|
||||
/** Print an action with leading tabs, attempting to |
||||
* preserve the current indentation level for multi-line actions |
||||
* Ignored if string is null. |
||||
* @param s The action string to output |
||||
*/ |
||||
protected void printAction(String s) { |
||||
if (s != null) { |
||||
printTabs(); |
||||
_printAction(s); |
||||
} |
||||
} |
||||
|
||||
/** Output tab indent followed by a String followed by newline, |
||||
* to the currentOutput stream. Ignored if string is null. |
||||
* @param s The string to output |
||||
*/ |
||||
protected void println(String s) { |
||||
if (s != null) { |
||||
printTabs(); |
||||
currentOutput.println(s); |
||||
} |
||||
} |
||||
|
||||
/** Output the current tab indentation. This outputs the number of tabs |
||||
* indicated by the "tabs" variable to the currentOutput stream. |
||||
*/ |
||||
protected void printTabs() { |
||||
for (int i = 1; i <= tabs; i++) { |
||||
currentOutput.print('\t'); |
||||
} |
||||
} |
||||
|
||||
/** Lexically process $ and # references within the action. |
||||
* This will replace #id and #(...) with the appropriate |
||||
* function calls and/or variables etc... |
||||
*/ |
||||
protected abstract String processActionForSpecialSymbols(String actionStr, |
||||
int line, |
||||
RuleBlock currentRule, |
||||
ActionTransInfo tInfo); |
||||
|
||||
public String getFOLLOWBitSet(String ruleName, int k) { |
||||
GrammarSymbol rs = grammar.getSymbol(ruleName); |
||||
if ( !(rs instanceof RuleSymbol) ) { |
||||
return null; |
||||
} |
||||
RuleBlock blk = ((RuleSymbol)rs).getBlock(); |
||||
Lookahead follow = grammar.theLLkAnalyzer.FOLLOW(k, blk.endNode); |
||||
String followSetName = getBitsetName(markBitsetForGen(follow.fset)); |
||||
return followSetName; |
||||
} |
||||
|
||||
public String getFIRSTBitSet(String ruleName, int k) { |
||||
GrammarSymbol rs = grammar.getSymbol(ruleName); |
||||
if ( !(rs instanceof RuleSymbol) ) { |
||||
return null; |
||||
} |
||||
RuleBlock blk = ((RuleSymbol)rs).getBlock(); |
||||
Lookahead first = grammar.theLLkAnalyzer.look(k, blk); |
||||
String firstSetName = getBitsetName(markBitsetForGen(first.fset)); |
||||
return firstSetName; |
||||
} |
||||
|
||||
/** |
||||
* Remove the assignment portion of a declaration, if any. |
||||
* @param d the declaration |
||||
* @return the declaration without any assignment portion |
||||
*/ |
||||
protected String removeAssignmentFromDeclaration(String d) { |
||||
// If d contains an equal sign, then it's a declaration
|
||||
// with an initialization. Strip off the initialization part.
|
||||
if (d.indexOf('=') >= 0) d = d.substring(0, d.indexOf('=')).trim(); |
||||
return d; |
||||
} |
||||
|
||||
/** Set all fields back like one just created */ |
||||
private void reset() { |
||||
tabs = 0; |
||||
// Allocate list of bitsets tagged for code generation
|
||||
bitsetsUsed = new Vector(); |
||||
currentOutput = null; |
||||
grammar = null; |
||||
DEBUG_CODE_GENERATOR = false; |
||||
makeSwitchThreshold = DEFAULT_MAKE_SWITCH_THRESHOLD; |
||||
bitsetTestThreshold = DEFAULT_BITSET_TEST_THRESHOLD; |
||||
} |
||||
|
||||
public static String reverseLexerRuleName(String id) { |
||||
return id.substring(1, id.length()); |
||||
} |
||||
|
||||
public void setAnalyzer(LLkGrammarAnalyzer analyzer_) { |
||||
analyzer = analyzer_; |
||||
} |
||||
|
||||
public void setBehavior(DefineGrammarSymbols behavior_) { |
||||
behavior = behavior_; |
||||
} |
||||
|
||||
/** Set a grammar for the code generator to use */ |
||||
protected void setGrammar(Grammar g) { |
||||
reset(); |
||||
grammar = g; |
||||
// Lookup make-switch threshold in the grammar generic options
|
||||
if (grammar.hasOption("codeGenMakeSwitchThreshold")) { |
||||
try { |
||||
makeSwitchThreshold = grammar.getIntegerOption("codeGenMakeSwitchThreshold"); |
||||
//System.out.println("setting codeGenMakeSwitchThreshold to " + makeSwitchThreshold);
|
||||
} |
||||
catch (NumberFormatException e) { |
||||
Token tok = grammar.getOption("codeGenMakeSwitchThreshold"); |
||||
antlrTool.error( |
||||
"option 'codeGenMakeSwitchThreshold' must be an integer", |
||||
grammar.getClassName(), |
||||
tok.getLine(), tok.getColumn() |
||||
); |
||||
} |
||||
} |
||||
|
||||
// Lookup bitset-test threshold in the grammar generic options
|
||||
if (grammar.hasOption("codeGenBitsetTestThreshold")) { |
||||
try { |
||||
bitsetTestThreshold = grammar.getIntegerOption("codeGenBitsetTestThreshold"); |
||||
//System.out.println("setting codeGenBitsetTestThreshold to " + bitsetTestThreshold);
|
||||
} |
||||
catch (NumberFormatException e) { |
||||
Token tok = grammar.getOption("codeGenBitsetTestThreshold"); |
||||
antlrTool.error( |
||||
"option 'codeGenBitsetTestThreshold' must be an integer", |
||||
grammar.getClassName(), |
||||
tok.getLine(), tok.getColumn() |
||||
); |
||||
} |
||||
} |
||||
|
||||
// Lookup debug code-gen in the grammar generic options
|
||||
if (grammar.hasOption("codeGenDebug")) { |
||||
Token t = grammar.getOption("codeGenDebug"); |
||||
if (t.getText().equals("true")) { |
||||
//System.out.println("setting code-generation debug ON");
|
||||
DEBUG_CODE_GENERATOR = true; |
||||
} |
||||
else if (t.getText().equals("false")) { |
||||
//System.out.println("setting code-generation debug OFF");
|
||||
DEBUG_CODE_GENERATOR = false; |
||||
} |
||||
else { |
||||
antlrTool.error("option 'codeGenDebug' must be true or false", grammar.getClassName(), t.getLine(), t.getColumn()); |
||||
} |
||||
} |
||||
} |
||||
|
||||
public void setTool(Tool tool) { |
||||
antlrTool = tool; |
||||
} |
||||
} |
||||
@ -1,59 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/CommonAST.java#2 $
|
||||
*/ |
||||
|
||||
import com.fr.third.antlr.collections.AST; |
||||
|
||||
/** Common AST node implementation */ |
||||
public class CommonAST extends BaseAST { |
||||
int ttype = Token.INVALID_TYPE; |
||||
String text; |
||||
|
||||
|
||||
/** Get the token text for this node */ |
||||
public String getText() { |
||||
return text; |
||||
} |
||||
|
||||
/** Get the token type for this node */ |
||||
public int getType() { |
||||
return ttype; |
||||
} |
||||
|
||||
public void initialize(int t, String txt) { |
||||
setType(t); |
||||
setText(txt); |
||||
} |
||||
|
||||
public void initialize(AST t) { |
||||
setText(t.getText()); |
||||
setType(t.getType()); |
||||
} |
||||
|
||||
public CommonAST() { |
||||
} |
||||
|
||||
public CommonAST(Token tok) { |
||||
initialize(tok); |
||||
} |
||||
|
||||
public void initialize(Token tok) { |
||||
setText(tok.getText()); |
||||
setType(tok.getType()); |
||||
} |
||||
|
||||
/** Set the token text for this node */ |
||||
public void setText(String text_) { |
||||
text = text_; |
||||
} |
||||
|
||||
/** Set the token type for this node */ |
||||
public void setType(int ttype_) { |
||||
ttype = ttype_; |
||||
} |
||||
} |
||||
@ -1,47 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/CommonASTWithHiddenTokens.java#2 $
|
||||
*/ |
||||
|
||||
import com.fr.third.antlr.collections.AST; |
||||
|
||||
/** A CommonAST whose initialization copies hidden token |
||||
* information from the Token used to create a node. |
||||
*/ |
||||
public class CommonASTWithHiddenTokens extends CommonAST { |
||||
protected CommonHiddenStreamToken hiddenBefore, hiddenAfter; // references to hidden tokens
|
||||
|
||||
public CommonASTWithHiddenTokens() { |
||||
super(); |
||||
} |
||||
|
||||
public CommonASTWithHiddenTokens(Token tok) { |
||||
super(tok); |
||||
} |
||||
|
||||
public CommonHiddenStreamToken getHiddenAfter() { |
||||
return hiddenAfter; |
||||
} |
||||
|
||||
public CommonHiddenStreamToken getHiddenBefore() { |
||||
return hiddenBefore; |
||||
} |
||||
|
||||
public void initialize(AST t) |
||||
{ |
||||
hiddenBefore = ((CommonASTWithHiddenTokens)t).getHiddenBefore(); |
||||
hiddenAfter = ((CommonASTWithHiddenTokens)t).getHiddenAfter(); |
||||
super.initialize(t); |
||||
} |
||||
|
||||
public void initialize(Token tok) { |
||||
CommonHiddenStreamToken t = (CommonHiddenStreamToken)tok; |
||||
super.initialize(t); |
||||
hiddenBefore = t.getHiddenBefore(); |
||||
hiddenAfter = t.getHiddenAfter(); |
||||
} |
||||
} |
||||
@ -1,41 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/CommonHiddenStreamToken.java#2 $
|
||||
*/ |
||||
|
||||
public class CommonHiddenStreamToken extends CommonToken { |
||||
protected CommonHiddenStreamToken hiddenBefore; |
||||
protected CommonHiddenStreamToken hiddenAfter; |
||||
|
||||
public CommonHiddenStreamToken() { |
||||
super(); |
||||
} |
||||
|
||||
public CommonHiddenStreamToken(int t, String txt) { |
||||
super(t, txt); |
||||
} |
||||
|
||||
public CommonHiddenStreamToken(String s) { |
||||
super(s); |
||||
} |
||||
|
||||
public CommonHiddenStreamToken getHiddenAfter() { |
||||
return hiddenAfter; |
||||
} |
||||
|
||||
public CommonHiddenStreamToken getHiddenBefore() { |
||||
return hiddenBefore; |
||||
} |
||||
|
||||
protected void setHiddenAfter(CommonHiddenStreamToken t) { |
||||
hiddenAfter = t; |
||||
} |
||||
|
||||
protected void setHiddenBefore(CommonHiddenStreamToken t) { |
||||
hiddenBefore = t; |
||||
} |
||||
} |
||||
@ -1,56 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/CommonToken.java#2 $
|
||||
*/ |
||||
|
||||
public class CommonToken extends Token { |
||||
// most tokens will want line and text information
|
||||
protected int line; |
||||
protected String text = null; |
||||
protected int col; |
||||
|
||||
public CommonToken() { |
||||
} |
||||
|
||||
public CommonToken(int t, String txt) { |
||||
type = t; |
||||
setText(txt); |
||||
} |
||||
|
||||
public CommonToken(String s) { |
||||
text = s; |
||||
} |
||||
|
||||
public int getLine() { |
||||
return line; |
||||
} |
||||
|
||||
public String getText() { |
||||
return text; |
||||
} |
||||
|
||||
public void setLine(int l) { |
||||
line = l; |
||||
} |
||||
|
||||
public void setText(String s) { |
||||
text = s; |
||||
} |
||||
|
||||
public String toString() { |
||||
return "[\"" + getText() + "\",<" + type + ">,line=" + line + ",col=" + col + "]"; |
||||
} |
||||
|
||||
/** Return token's start column */ |
||||
public int getColumn() { |
||||
return col; |
||||
} |
||||
|
||||
public void setColumn(int c) { |
||||
col = c; |
||||
} |
||||
} |
||||
@ -1,33 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/DefaultFileLineFormatter.java#2 $
|
||||
*/ |
||||
|
||||
public class DefaultFileLineFormatter extends FileLineFormatter { |
||||
public String getFormatString(String fileName, int line, int column) { |
||||
StringBuffer buf = new StringBuffer(); |
||||
|
||||
if (fileName != null) |
||||
buf.append(fileName + ":"); |
||||
|
||||
if (line != -1) { |
||||
if (fileName == null) |
||||
buf.append("line "); |
||||
|
||||
buf.append(line); |
||||
|
||||
if (column != -1) |
||||
buf.append(":" + column); |
||||
|
||||
buf.append(':'); |
||||
} |
||||
|
||||
buf.append(' '); |
||||
|
||||
return buf.toString(); |
||||
} |
||||
} |
||||
@ -1,73 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
import java.io.IOException; |
||||
import java.io.PrintWriter; |
||||
import java.util.HashMap; |
||||
import java.util.Map; |
||||
|
||||
public class DefaultJavaCodeGeneratorPrintWriterManager implements JavaCodeGeneratorPrintWriterManager { |
||||
private Grammar grammar; |
||||
private PrintWriterWithSMAP smapOutput; |
||||
private PrintWriter currentOutput; |
||||
private Tool tool; |
||||
private Map sourceMaps = new HashMap(); |
||||
private String currentFileName; |
||||
|
||||
public PrintWriter setupOutput(Tool tool, Grammar grammar) throws IOException { |
||||
return setupOutput(tool, grammar, null); |
||||
} |
||||
|
||||
public PrintWriter setupOutput(Tool tool, String fileName) throws IOException { |
||||
return setupOutput(tool, null, fileName); |
||||
} |
||||
|
||||
public PrintWriter setupOutput(Tool tool, Grammar grammar, String fileName) throws IOException { |
||||
this.tool = tool; |
||||
this.grammar = grammar; |
||||
|
||||
if (fileName == null) |
||||
fileName = grammar.getClassName(); |
||||
|
||||
smapOutput = new PrintWriterWithSMAP(tool.openOutputFile(fileName + ".java")); |
||||
currentFileName = fileName + ".java"; |
||||
currentOutput = smapOutput; |
||||
return currentOutput; |
||||
} |
||||
|
||||
public void startMapping(int sourceLine) { |
||||
smapOutput.startMapping(sourceLine); |
||||
} |
||||
|
||||
public void startSingleSourceLineMapping(int sourceLine) { |
||||
smapOutput.startSingleSourceLineMapping(sourceLine); |
||||
} |
||||
|
||||
public void endMapping() { |
||||
smapOutput.endMapping(); |
||||
} |
||||
|
||||
public void finishOutput() throws IOException { |
||||
currentOutput.close(); |
||||
if (grammar != null) { |
||||
PrintWriter smapWriter; |
||||
smapWriter = tool.openOutputFile(grammar.getClassName() + ".smap"); |
||||
String grammarFile = grammar.getFilename(); |
||||
grammarFile = grammarFile.replace('\\', '/'); |
||||
int lastSlash = grammarFile.lastIndexOf('/'); |
||||
if (lastSlash != -1) |
||||
grammarFile = grammarFile.substring(lastSlash+1); |
||||
smapOutput.dump(smapWriter, grammar.getClassName(), grammarFile); |
||||
sourceMaps.put(currentFileName, smapOutput.getSourceMap()); |
||||
} |
||||
currentOutput = null; |
||||
} |
||||
|
||||
public Map getSourceMaps() { |
||||
return sourceMaps; |
||||
} |
||||
|
||||
public int getCurrentOutputLine() |
||||
{ |
||||
return smapOutput.getCurrentOutputLine(); |
||||
} |
||||
} |
||||
@ -1,118 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/DefaultToolErrorHandler.java#2 $
|
||||
*/ |
||||
|
||||
|
||||
class DefaultToolErrorHandler implements ToolErrorHandler { |
||||
DefaultToolErrorHandler(com.fr.third.antlr.Tool tool) { |
||||
antlrTool = tool; |
||||
} |
||||
private final com.fr.third.antlr.Tool antlrTool; |
||||
|
||||
CharFormatter javaCharFormatter = new JavaCharFormatter(); |
||||
|
||||
/** Dump token/character sets to a string array suitable for |
||||
* {@link antlr.Tool.warning(String[], String, int, int) |
||||
* @param output The array that will contain the token/character set dump, |
||||
* one element per k (lookahead) value |
||||
* @param outputStartIndex The index into <code>output</code> that the |
||||
* dump should start at. |
||||
* @param lexicalAnalysis true for lexical rule |
||||
* @param depth The depth of the ambiguity |
||||
* @param sets An array of bitsets containing the ambiguities |
||||
*/ |
||||
private void dumpSets(String[] output, |
||||
int outputStartIndex, |
||||
Grammar grammar, |
||||
boolean lexicalAnalysis, |
||||
int depth, |
||||
Lookahead[] sets) { |
||||
StringBuffer line = new StringBuffer(100); |
||||
for (int i = 1; i <= depth; i++) { |
||||
line.append("k==").append(i).append(':'); |
||||
if (lexicalAnalysis) { |
||||
String bits = sets[i].fset.toStringWithRanges(",", javaCharFormatter); |
||||
if (sets[i].containsEpsilon()) { |
||||
line.append("<end-of-token>"); |
||||
if (bits.length() > 0) { |
||||
line.append(','); |
||||
} |
||||
} |
||||
line.append(bits); |
||||
} else { |
||||
line.append(sets[i].fset.toString(",", grammar.tokenManager.getVocabulary())); |
||||
} |
||||
output[outputStartIndex++] = line.toString(); |
||||
line.setLength(0); |
||||
} |
||||
} |
||||
|
||||
/** Issue a warning about ambiguity between a alternates |
||||
* @param blk The block being analyzed |
||||
* @param lexicalAnalysis true for lexical rule |
||||
* @param depth The depth of the ambiguity |
||||
* @param sets An array of bitsets containing the ambiguities |
||||
* @param altIdx1 The zero-based index of the first ambiguous alternative |
||||
* @param altIdx2 The zero-based index of the second ambiguous alternative |
||||
*/ |
||||
public void warnAltAmbiguity(Grammar grammar, |
||||
AlternativeBlock blk, |
||||
boolean lexicalAnalysis, |
||||
int depth, |
||||
Lookahead[] sets, |
||||
int altIdx1, |
||||
int altIdx2) |
||||
{ |
||||
final StringBuffer line = new StringBuffer(100); |
||||
if (blk instanceof RuleBlock && ((RuleBlock)blk).isLexerAutoGenRule()) { |
||||
Alternative ai = blk.getAlternativeAt(altIdx1); |
||||
Alternative aj = blk.getAlternativeAt(altIdx2); |
||||
RuleRefElement rri = (RuleRefElement)ai.head; |
||||
RuleRefElement rrj = (RuleRefElement)aj.head; |
||||
String ri = CodeGenerator.reverseLexerRuleName(rri.targetRule); |
||||
String rj = CodeGenerator.reverseLexerRuleName(rrj.targetRule); |
||||
line.append("lexical nondeterminism between rules "); |
||||
line.append(ri).append(" and ").append(rj).append(" upon"); |
||||
} |
||||
else { |
||||
if (lexicalAnalysis) { |
||||
line.append("lexical "); |
||||
} |
||||
line.append("nondeterminism between alts "); |
||||
line.append(altIdx1 + 1).append(" and "); |
||||
line.append(altIdx2 + 1).append(" of block upon"); |
||||
} |
||||
final String [] output = new String [depth + 1]; |
||||
output[0] = line.toString(); |
||||
dumpSets(output, 1, grammar, lexicalAnalysis, depth, sets); |
||||
antlrTool.warning(output, grammar.getFilename(), blk.getLine(), blk.getColumn()); |
||||
|
||||
} |
||||
|
||||
/** Issue a warning about ambiguity between an alternate and exit path. |
||||
* @param blk The block being analyzed |
||||
* @param lexicalAnalysis true for lexical rule |
||||
* @param depth The depth of the ambiguity |
||||
* @param sets An array of bitsets containing the ambiguities |
||||
* @param altIdx The zero-based index of the ambiguous alternative |
||||
*/ |
||||
public void warnAltExitAmbiguity(Grammar grammar, |
||||
BlockWithImpliedExitPath blk, |
||||
boolean lexicalAnalysis, |
||||
int depth, |
||||
Lookahead[] sets, |
||||
int altIdx |
||||
) |
||||
{ |
||||
String [] output = new String[depth + 2]; |
||||
output[0] = (lexicalAnalysis ? "lexical " : "") + "nondeterminism upon"; |
||||
dumpSets(output, 1, grammar, lexicalAnalysis, depth, sets); |
||||
output[depth + 1] = "between alt " + (altIdx + 1) + " and exit branch of block"; |
||||
antlrTool.warning(output, grammar.getFilename(), blk.getLine(), blk.getColumn()); |
||||
} |
||||
} |
||||
@ -1,811 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/DefineGrammarSymbols.java#2 $
|
||||
*/ |
||||
|
||||
import java.util.Hashtable; |
||||
|
||||
import com.fr.third.antlr.collections.impl.BitSet; |
||||
|
||||
|
||||
/**DefineGrammarSymbols is a behavior for the ANTLRParser that adds all |
||||
* the token and rule symbols to the grammar symbol table. |
||||
* |
||||
* Token types are assigned to token symbols in this class also. |
||||
* The token type for a token is done in the order seen (lexically). |
||||
*/ |
||||
public class DefineGrammarSymbols implements ANTLRGrammarParseBehavior { |
||||
// Contains all of the defined parser and lexer Grammar's indexed by name
|
||||
protected Hashtable grammars = new Hashtable(); |
||||
// Contains all the TokenManagers indexed by name
|
||||
protected Hashtable tokenManagers = new Hashtable(); |
||||
// Current grammar (parser or lexer)
|
||||
protected Grammar grammar; |
||||
// The tool under which this is invoked
|
||||
protected Tool tool; |
||||
// The grammar analyzer object
|
||||
LLkAnalyzer analyzer; |
||||
// The command-line arguments passed to the tool.
|
||||
// This allows each grammar to parse the arguments as it is created
|
||||
String[] args; |
||||
// Name for default token manager does not match any valid name
|
||||
static final String DEFAULT_TOKENMANAGER_NAME = "*default"; |
||||
// Header actions apply to all parsers unless redefined
|
||||
// Contains all of the header actions indexed by name
|
||||
protected Hashtable headerActions = new Hashtable(); |
||||
// Place where preamble is stored until a grammar is defined
|
||||
Token thePreambleAction = new CommonToken(Token.INVALID_TYPE, ""); // init to empty token
|
||||
// The target language
|
||||
String language = "Java"; |
||||
|
||||
protected int numLexers = 0; |
||||
protected int numParsers = 0; |
||||
protected int numTreeParsers = 0; |
||||
|
||||
public DefineGrammarSymbols(Tool tool_, String[] args_, LLkAnalyzer analyzer_) { |
||||
tool = tool_; |
||||
args = args_; |
||||
analyzer = analyzer_; |
||||
} |
||||
|
||||
public void _refStringLiteral(Token lit, Token label, int autoGenType, boolean lastInRule) { |
||||
if (!(grammar instanceof LexerGrammar)) { |
||||
// String literals are treated like tokens except by the lexer
|
||||
String str = lit.getText(); |
||||
if (grammar.tokenManager.getTokenSymbol(str) != null) { |
||||
// string symbol is already defined
|
||||
return; |
||||
} |
||||
StringLiteralSymbol sl = new StringLiteralSymbol(str); |
||||
int tt = grammar.tokenManager.nextTokenType(); |
||||
sl.setTokenType(tt); |
||||
grammar.tokenManager.define(sl); |
||||
} |
||||
} |
||||
|
||||
/** Reference a token */ |
||||
public void _refToken(Token assignId, |
||||
Token t, |
||||
Token label, |
||||
Token args, |
||||
boolean inverted, |
||||
int autoGenType, |
||||
boolean lastInRule) { |
||||
String id = t.getText(); |
||||
if (!grammar.tokenManager.tokenDefined(id)) { |
||||
/* |
||||
// RK: dish out a warning if the token was not defined before.
|
||||
tool.warning("Token '" + id + "' defined outside tokens section", |
||||
tool.grammarFile, t.getLine(), t.getColumn()); |
||||
*/ |
||||
int tt = grammar.tokenManager.nextTokenType(); |
||||
TokenSymbol ts = new TokenSymbol(id); |
||||
ts.setTokenType(tt); |
||||
grammar.tokenManager.define(ts); |
||||
} |
||||
} |
||||
|
||||
/** Abort the processing of a grammar due to syntax errors */ |
||||
public void abortGrammar() { |
||||
if (grammar != null && grammar.getClassName() != null) { |
||||
grammars.remove(grammar.getClassName()); |
||||
} |
||||
grammar = null; |
||||
} |
||||
|
||||
public void beginAlt(boolean doAST_) { |
||||
} |
||||
|
||||
public void beginChildList() { |
||||
} |
||||
|
||||
// Exception handling
|
||||
public void beginExceptionGroup() { |
||||
} |
||||
|
||||
public void beginExceptionSpec(Token label) { |
||||
} |
||||
|
||||
public void beginSubRule(Token label, Token start, boolean not) { |
||||
} |
||||
|
||||
public void beginTree(Token tok) throws SemanticException { |
||||
} |
||||
|
||||
/** Define a lexer or parser rule */ |
||||
public void defineRuleName(Token r, |
||||
String access, |
||||
boolean ruleAutoGen, |
||||
String docComment) |
||||
throws SemanticException { |
||||
String id = r.getText(); |
||||
|
||||
// if ( Character.isUpperCase(id.charAt(0)) ) {
|
||||
if (r.type == ANTLRTokenTypes.TOKEN_REF) { |
||||
// lexer rule
|
||||
id = CodeGenerator.encodeLexerRuleName(id); |
||||
// make sure we define it as token identifier also
|
||||
if (!grammar.tokenManager.tokenDefined(r.getText())) { |
||||
int tt = grammar.tokenManager.nextTokenType(); |
||||
TokenSymbol ts = new TokenSymbol(r.getText()); |
||||
ts.setTokenType(tt); |
||||
grammar.tokenManager.define(ts); |
||||
} |
||||
} |
||||
|
||||
RuleSymbol rs; |
||||
if (grammar.isDefined(id)) { |
||||
// symbol seen before?
|
||||
rs = (RuleSymbol)grammar.getSymbol(id); |
||||
// rule just referenced or has it been defined yet?
|
||||
if (rs.isDefined()) { |
||||
tool.error("redefinition of rule " + id, grammar.getFilename(), r.getLine(), r.getColumn()); |
||||
} |
||||
} |
||||
else { |
||||
rs = new RuleSymbol(id); |
||||
grammar.define(rs); |
||||
} |
||||
rs.setDefined(); |
||||
rs.access = access; |
||||
rs.comment = docComment; |
||||
} |
||||
|
||||
/** Define a token from tokens {...}. |
||||
* Must be label and literal or just label or just a literal. |
||||
*/ |
||||
public void defineToken(Token tokname, Token tokliteral) { |
||||
String name = null; |
||||
String literal = null; |
||||
if (tokname != null) { |
||||
name = tokname.getText(); |
||||
} |
||||
if (tokliteral != null) { |
||||
literal = tokliteral.getText(); |
||||
} |
||||
// System.out.println("defining " + name + " with literal " + literal);
|
||||
//
|
||||
if (literal != null) { |
||||
StringLiteralSymbol sl = (StringLiteralSymbol)grammar.tokenManager.getTokenSymbol(literal); |
||||
if (sl != null) { |
||||
// This literal is known already.
|
||||
// If the literal has no label already, but we can provide
|
||||
// one here, then no problem, just map the label to the literal
|
||||
// and don't change anything else.
|
||||
// Otherwise, labels conflict: error.
|
||||
if (name == null || sl.getLabel() != null) { |
||||
tool.warning("Redefinition of literal in tokens {...}: " + literal, grammar.getFilename(), tokliteral.getLine(), tokliteral.getColumn()); |
||||
return; |
||||
} |
||||
else if (name != null) { |
||||
// The literal had no label, but new def does. Set it.
|
||||
sl.setLabel(name); |
||||
// Also, map the label to the literal.
|
||||
grammar.tokenManager.mapToTokenSymbol(name, sl); |
||||
} |
||||
} |
||||
// if they provide a name/label and that name/label already
|
||||
// exists, just hook this literal onto old token.
|
||||
if (name != null) { |
||||
TokenSymbol ts = (TokenSymbol)grammar.tokenManager.getTokenSymbol(name); |
||||
if (ts != null) { |
||||
// watch out that the label is not more than just a token.
|
||||
// If it already has a literal attached, then: conflict.
|
||||
if (ts instanceof StringLiteralSymbol) { |
||||
tool.warning("Redefinition of token in tokens {...}: " + name, grammar.getFilename(), tokliteral.getLine(), tokliteral.getColumn()); |
||||
return; |
||||
} |
||||
// a simple token symbol such as DECL is defined
|
||||
// must convert it to a StringLiteralSymbol with a
|
||||
// label by co-opting token type and killing old
|
||||
// TokenSymbol. Kill mapping and entry in vector
|
||||
// of token manager.
|
||||
// First, claim token type.
|
||||
int ttype = ts.getTokenType(); |
||||
// now, create string literal with label
|
||||
sl = new StringLiteralSymbol(literal); |
||||
sl.setTokenType(ttype); |
||||
sl.setLabel(name); |
||||
// redefine this critter as a string literal
|
||||
grammar.tokenManager.define(sl); |
||||
// make sure the label can be used also.
|
||||
grammar.tokenManager.mapToTokenSymbol(name, sl); |
||||
return; |
||||
} |
||||
// here, literal was labeled but not by a known token symbol.
|
||||
} |
||||
sl = new StringLiteralSymbol(literal); |
||||
int tt = grammar.tokenManager.nextTokenType(); |
||||
sl.setTokenType(tt); |
||||
sl.setLabel(name); |
||||
grammar.tokenManager.define(sl); |
||||
if (name != null) { |
||||
// make the label point at token symbol too
|
||||
grammar.tokenManager.mapToTokenSymbol(name, sl); |
||||
} |
||||
} |
||||
|
||||
// create a token in the token manager not a literal
|
||||
else { |
||||
if (grammar.tokenManager.tokenDefined(name)) { |
||||
tool.warning("Redefinition of token in tokens {...}: " + name, grammar.getFilename(), tokname.getLine(), tokname.getColumn()); |
||||
return; |
||||
} |
||||
int tt = grammar.tokenManager.nextTokenType(); |
||||
TokenSymbol ts = new TokenSymbol(name); |
||||
ts.setTokenType(tt); |
||||
grammar.tokenManager.define(ts); |
||||
} |
||||
} |
||||
|
||||
public void endAlt() { |
||||
} |
||||
|
||||
public void endChildList() { |
||||
} |
||||
|
||||
public void endExceptionGroup() { |
||||
} |
||||
|
||||
public void endExceptionSpec() { |
||||
} |
||||
|
||||
public void endGrammar() { |
||||
} |
||||
|
||||
/** Called after the optional options section, to compensate for |
||||
* options that may not have been set. |
||||
* This method is bigger than it needs to be, but is much more |
||||
* clear if I delineate all the cases. |
||||
*/ |
||||
public void endOptions() { |
||||
// NO VOCAB OPTIONS
|
||||
if (grammar.exportVocab == null && grammar.importVocab == null) { |
||||
grammar.exportVocab = grammar.getClassName(); |
||||
// Can we get initial vocab from default shared vocab?
|
||||
if (tokenManagers.containsKey(DEFAULT_TOKENMANAGER_NAME)) { |
||||
// Use the already-defined token manager
|
||||
grammar.exportVocab = DEFAULT_TOKENMANAGER_NAME; |
||||
TokenManager tm = (TokenManager)tokenManagers.get(DEFAULT_TOKENMANAGER_NAME); |
||||
// System.out.println("No tokenVocabulary for '" + grammar.getClassName() + "', using default '" + tm.getName() + "'");
|
||||
grammar.setTokenManager(tm); |
||||
return; |
||||
} |
||||
// no shared vocab for file, make new one
|
||||
// System.out.println("No exportVocab for '" + grammar.getClassName() + "', creating default '" + grammar.exportVocab + "'");
|
||||
TokenManager tm = new SimpleTokenManager(grammar.exportVocab, tool); |
||||
grammar.setTokenManager(tm); |
||||
// Add the token manager to the list of token managers
|
||||
tokenManagers.put(grammar.exportVocab, tm); |
||||
// no default vocab, so make this the default vocab
|
||||
tokenManagers.put(DEFAULT_TOKENMANAGER_NAME, tm); |
||||
return; |
||||
} |
||||
|
||||
// NO OUTPUT, BUT HAS INPUT VOCAB
|
||||
if (grammar.exportVocab == null && grammar.importVocab != null) { |
||||
grammar.exportVocab = grammar.getClassName(); |
||||
// first make sure input!=output
|
||||
if (grammar.importVocab.equals(grammar.exportVocab)) { |
||||
tool.warning("Grammar " + grammar.getClassName() + |
||||
" cannot have importVocab same as default output vocab (grammar name); ignored."); |
||||
// kill importVocab option and try again: use default vocab
|
||||
grammar.importVocab = null; |
||||
endOptions(); |
||||
return; |
||||
} |
||||
// check to see if the vocab is already in memory
|
||||
// (defined by another grammar in the file). Not normal situation.
|
||||
if (tokenManagers.containsKey(grammar.importVocab)) { |
||||
// make a copy since we'll be generating a new output vocab
|
||||
// and we don't want to affect this one. Set the name to
|
||||
// the default output vocab==classname.
|
||||
TokenManager tm = (TokenManager)tokenManagers.get(grammar.importVocab); |
||||
// System.out.println("Duping importVocab of " + grammar.importVocab);
|
||||
TokenManager dup = (TokenManager)tm.clone(); |
||||
dup.setName(grammar.exportVocab); |
||||
// System.out.println("Setting name to " + grammar.exportVocab);
|
||||
dup.setReadOnly(false); |
||||
grammar.setTokenManager(dup); |
||||
tokenManagers.put(grammar.exportVocab, dup); |
||||
return; |
||||
} |
||||
// System.out.println("reading in vocab "+grammar.importVocab);
|
||||
// Must be a file, go get it.
|
||||
ImportVocabTokenManager tm = |
||||
new ImportVocabTokenManager(grammar, |
||||
grammar.importVocab + CodeGenerator.TokenTypesFileSuffix + CodeGenerator.TokenTypesFileExt, |
||||
grammar.exportVocab, |
||||
tool); |
||||
tm.setReadOnly(false); // since renamed, can write out
|
||||
// Add this token manager to the list so its tokens will be generated
|
||||
tokenManagers.put(grammar.exportVocab, tm); |
||||
// System.out.println("vocab renamed to default output vocab of "+tm.getName());
|
||||
// Assign the token manager to this grammar.
|
||||
grammar.setTokenManager(tm); |
||||
|
||||
// set default vocab if none
|
||||
if (!tokenManagers.containsKey(DEFAULT_TOKENMANAGER_NAME)) { |
||||
tokenManagers.put(DEFAULT_TOKENMANAGER_NAME, tm); |
||||
} |
||||
|
||||
return; |
||||
} |
||||
|
||||
// OUTPUT VOCAB, BUT NO INPUT VOCAB
|
||||
if (grammar.exportVocab != null && grammar.importVocab == null) { |
||||
// share with previous vocab if it exists
|
||||
if (tokenManagers.containsKey(grammar.exportVocab)) { |
||||
// Use the already-defined token manager
|
||||
TokenManager tm = (TokenManager)tokenManagers.get(grammar.exportVocab); |
||||
// System.out.println("Sharing exportVocab of " + grammar.exportVocab);
|
||||
grammar.setTokenManager(tm); |
||||
return; |
||||
} |
||||
// create new output vocab
|
||||
// System.out.println("Creating exportVocab " + grammar.exportVocab);
|
||||
TokenManager tm = new SimpleTokenManager(grammar.exportVocab, tool); |
||||
grammar.setTokenManager(tm); |
||||
// Add the token manager to the list of token managers
|
||||
tokenManagers.put(grammar.exportVocab, tm); |
||||
// set default vocab if none
|
||||
if (!tokenManagers.containsKey(DEFAULT_TOKENMANAGER_NAME)) { |
||||
tokenManagers.put(DEFAULT_TOKENMANAGER_NAME, tm); |
||||
} |
||||
return; |
||||
} |
||||
|
||||
// BOTH INPUT AND OUTPUT VOCAB
|
||||
if (grammar.exportVocab != null && grammar.importVocab != null) { |
||||
// don't want input==output
|
||||
if (grammar.importVocab.equals(grammar.exportVocab)) { |
||||
tool.error("exportVocab of " + grammar.exportVocab + " same as importVocab; probably not what you want"); |
||||
} |
||||
// does the input vocab already exist in memory?
|
||||
if (tokenManagers.containsKey(grammar.importVocab)) { |
||||
// make a copy since we'll be generating a new output vocab
|
||||
// and we don't want to affect this one.
|
||||
TokenManager tm = (TokenManager)tokenManagers.get(grammar.importVocab); |
||||
// System.out.println("Duping importVocab of " + grammar.importVocab);
|
||||
TokenManager dup = (TokenManager)tm.clone(); |
||||
dup.setName(grammar.exportVocab); |
||||
// System.out.println("Setting name to " + grammar.exportVocab);
|
||||
dup.setReadOnly(false); |
||||
grammar.setTokenManager(dup); |
||||
tokenManagers.put(grammar.exportVocab, dup); |
||||
return; |
||||
} |
||||
// Must be a file, go get it.
|
||||
ImportVocabTokenManager tm = |
||||
new ImportVocabTokenManager(grammar, |
||||
grammar.importVocab + CodeGenerator.TokenTypesFileSuffix + CodeGenerator.TokenTypesFileExt, |
||||
grammar.exportVocab, |
||||
tool); |
||||
tm.setReadOnly(false); // write it out as we've changed name
|
||||
// Add this token manager to the list so its tokens will be generated
|
||||
tokenManagers.put(grammar.exportVocab, tm); |
||||
// Assign the token manager to this grammar.
|
||||
grammar.setTokenManager(tm); |
||||
|
||||
// set default vocab if none
|
||||
if (!tokenManagers.containsKey(DEFAULT_TOKENMANAGER_NAME)) { |
||||
tokenManagers.put(DEFAULT_TOKENMANAGER_NAME, tm); |
||||
} |
||||
|
||||
return; |
||||
} |
||||
} |
||||
|
||||
public void endRule(String r) { |
||||
} |
||||
|
||||
public void endSubRule() { |
||||
} |
||||
|
||||
public void endTree() { |
||||
} |
||||
|
||||
public void hasError() { |
||||
} |
||||
|
||||
public void noASTSubRule() { |
||||
} |
||||
|
||||
public void oneOrMoreSubRule() { |
||||
} |
||||
|
||||
public void optionalSubRule() { |
||||
} |
||||
|
||||
public void setUserExceptions(String thr) { |
||||
} |
||||
|
||||
public void refAction(Token action) { |
||||
} |
||||
|
||||
public void refArgAction(Token action) { |
||||
} |
||||
|
||||
public void refCharLiteral(Token lit, Token label, boolean inverted, int autoGenType, boolean lastInRule) { |
||||
} |
||||
|
||||
public void refCharRange(Token t1, Token t2, Token label, int autoGenType, boolean lastInRule) { |
||||
} |
||||
|
||||
public void refElementOption(Token option, Token value) { |
||||
} |
||||
|
||||
public void refTokensSpecElementOption(Token tok, Token option, Token value) { |
||||
} |
||||
|
||||
public void refExceptionHandler(Token exTypeAndName, Token action) { |
||||
} |
||||
|
||||
// Header action applies to all parsers and lexers.
|
||||
public void refHeaderAction(Token name, Token act) { |
||||
String key; |
||||
|
||||
if (name == null) |
||||
key = ""; |
||||
else |
||||
key = StringUtils.stripFrontBack(name.getText(), "\"", "\""); |
||||
|
||||
// FIXME: depending on the mode the inserted header actions should
|
||||
// be checked for sanity.
|
||||
if (headerActions.containsKey(key)) { |
||||
if (key.equals("")) |
||||
tool.error(act.getLine() + ": header action already defined"); |
||||
else |
||||
tool.error(act.getLine() + ": header action '" + key + "' already defined"); |
||||
} |
||||
headerActions.put(key, act); |
||||
} |
||||
|
||||
public String getHeaderAction(String name) { |
||||
Token t = (Token)headerActions.get(name); |
||||
if (t == null) { |
||||
return ""; |
||||
} |
||||
return t.getText(); |
||||
} |
||||
|
||||
public int getHeaderActionLine(String name) { |
||||
Token t = (Token)headerActions.get(name); |
||||
if (t == null) { |
||||
return 0; |
||||
} |
||||
return t.getLine(); |
||||
} |
||||
|
||||
public void refInitAction(Token action) { |
||||
} |
||||
|
||||
public void refMemberAction(Token act) { |
||||
} |
||||
|
||||
public void refPreambleAction(Token act) { |
||||
thePreambleAction = act; |
||||
} |
||||
|
||||
public void refReturnAction(Token returnAction) { |
||||
} |
||||
|
||||
public void refRule(Token idAssign, |
||||
Token r, |
||||
Token label, |
||||
Token args, |
||||
int autoGenType) { |
||||
String id = r.getText(); |
||||
// if ( Character.isUpperCase(id.charAt(0)) ) { // lexer rule?
|
||||
if (r.type == ANTLRTokenTypes.TOKEN_REF) { |
||||
// lexer rule?
|
||||
id = CodeGenerator.encodeLexerRuleName(id); |
||||
} |
||||
if (!grammar.isDefined(id)) { |
||||
grammar.define(new RuleSymbol(id)); |
||||
} |
||||
} |
||||
|
||||
public void refSemPred(Token pred) { |
||||
} |
||||
|
||||
public void refStringLiteral(Token lit, |
||||
Token label, |
||||
int autoGenType, |
||||
boolean lastInRule) { |
||||
_refStringLiteral(lit, label, autoGenType, lastInRule); |
||||
} |
||||
|
||||
/** Reference a token */ |
||||
public void refToken(Token assignId, Token t, Token label, Token args, |
||||
boolean inverted, int autoGenType, boolean lastInRule) { |
||||
_refToken(assignId, t, label, args, inverted, autoGenType, lastInRule); |
||||
} |
||||
|
||||
public void refTokenRange(Token t1, Token t2, Token label, int autoGenType, boolean lastInRule) { |
||||
// ensure that the DefineGrammarSymbols methods are called; otherwise a range addes more
|
||||
// token refs to the alternative by calling MakeGrammar.refToken etc...
|
||||
if (t1.getText().charAt(0) == '"') { |
||||
refStringLiteral(t1, null, GrammarElement.AUTO_GEN_NONE, lastInRule); |
||||
} |
||||
else { |
||||
_refToken(null, t1, null, null, false, GrammarElement.AUTO_GEN_NONE, lastInRule); |
||||
} |
||||
if (t2.getText().charAt(0) == '"') { |
||||
_refStringLiteral(t2, null, GrammarElement.AUTO_GEN_NONE, lastInRule); |
||||
} |
||||
else { |
||||
_refToken(null, t2, null, null, false, GrammarElement.AUTO_GEN_NONE, lastInRule); |
||||
} |
||||
} |
||||
|
||||
public void refTreeSpecifier(Token treeSpec) { |
||||
} |
||||
|
||||
public void refWildcard(Token t, Token label, int autoGenType) { |
||||
} |
||||
|
||||
/** Get ready to process a new grammar */ |
||||
public void reset() { |
||||
grammar = null; |
||||
} |
||||
|
||||
public void setArgOfRuleRef(Token argaction) { |
||||
} |
||||
|
||||
/** Set the character vocabulary for a lexer */ |
||||
public void setCharVocabulary(BitSet b) { |
||||
// grammar should enforce that this is only called for lexer
|
||||
((LexerGrammar)grammar).setCharVocabulary(b); |
||||
} |
||||
|
||||
/** setFileOption: Associate an option value with a key. |
||||
* This applies to options for an entire grammar file. |
||||
* @param key The token containing the option name |
||||
* @param value The token containing the option value. |
||||
*/ |
||||
public void setFileOption(Token key, Token value, String filename) { |
||||
if (key.getText().equals("language")) { |
||||
if (value.getType() == ANTLRParser.STRING_LITERAL) { |
||||
language = StringUtils.stripBack(StringUtils.stripFront(value.getText(), '"'), '"'); |
||||
} |
||||
else if (value.getType() == ANTLRParser.TOKEN_REF || value.getType() == ANTLRParser.RULE_REF) { |
||||
language = value.getText(); |
||||
} |
||||
else { |
||||
tool.error("language option must be string or identifier", filename, value.getLine(), value.getColumn()); |
||||
} |
||||
} |
||||
else if (key.getText().equals("mangleLiteralPrefix")) { |
||||
if (value.getType() == ANTLRParser.STRING_LITERAL) { |
||||
tool.literalsPrefix = StringUtils.stripFrontBack(value.getText(), "\"", "\""); |
||||
} |
||||
else { |
||||
tool.error("mangleLiteralPrefix option must be string", filename, value.getLine(), value.getColumn()); |
||||
} |
||||
} |
||||
else if (key.getText().equals("upperCaseMangledLiterals")) { |
||||
if (value.getText().equals("true")) { |
||||
tool.upperCaseMangledLiterals = true; |
||||
} |
||||
else if (value.getText().equals("false")) { |
||||
tool.upperCaseMangledLiterals = false; |
||||
} |
||||
else { |
||||
grammar.antlrTool.error("Value for upperCaseMangledLiterals must be true or false", filename, key.getLine(), key.getColumn()); |
||||
} |
||||
} |
||||
else if ( key.getText().equals("namespaceStd") || |
||||
key.getText().equals("namespaceAntlr") || |
||||
key.getText().equals("genHashLines") |
||||
) { |
||||
if (!language.equals("Cpp")) { |
||||
tool.error(key.getText() + " option only valid for C++", filename, key.getLine(), key.getColumn()); |
||||
} |
||||
else { |
||||
if (key.getText().equals("noConstructors")) { |
||||
if (!(value.getText().equals("true") || value.getText().equals("false"))) |
||||
tool.error("noConstructors option must be true or false", filename, value.getLine(), value.getColumn()); |
||||
tool.noConstructors = value.getText().equals("true"); |
||||
} else if (key.getText().equals("genHashLines")) { |
||||
if (!(value.getText().equals("true") || value.getText().equals("false"))) |
||||
tool.error("genHashLines option must be true or false", filename, value.getLine(), value.getColumn()); |
||||
tool.genHashLines = value.getText().equals("true"); |
||||
} |
||||
else { |
||||
if (value.getType() != ANTLRParser.STRING_LITERAL) { |
||||
tool.error(key.getText() + " option must be a string", filename, value.getLine(), value.getColumn()); |
||||
} |
||||
else { |
||||
if (key.getText().equals("namespaceStd")) |
||||
tool.namespaceStd = value.getText(); |
||||
else if (key.getText().equals("namespaceAntlr")) |
||||
tool.namespaceAntlr = value.getText(); |
||||
} |
||||
} |
||||
} |
||||
} |
||||
else if ( key.getText().equals("namespace") ) { |
||||
if ( !language.equals("Cpp") && !language.equals("CSharp") ) |
||||
{ |
||||
tool.error(key.getText() + " option only valid for C++ and C# (a.k.a CSharp)", filename, key.getLine(), key.getColumn()); |
||||
} |
||||
else |
||||
{ |
||||
if (value.getType() != ANTLRParser.STRING_LITERAL) |
||||
{ |
||||
tool.error(key.getText() + " option must be a string", filename, value.getLine(), value.getColumn()); |
||||
} |
||||
else { |
||||
if (key.getText().equals("namespace")) |
||||
tool.setNameSpace(value.getText()); |
||||
} |
||||
} |
||||
} |
||||
else { |
||||
tool.error("Invalid file-level option: " + key.getText(), filename, key.getLine(), value.getColumn()); |
||||
} |
||||
} |
||||
|
||||
/** setGrammarOption: Associate an option value with a key. |
||||
* This function forwards to Grammar.setOption for some options. |
||||
* @param key The token containing the option name |
||||
* @param value The token containing the option value. |
||||
*/ |
||||
public void setGrammarOption(Token key, Token value) { |
||||
if (key.getText().equals("tokdef") || key.getText().equals("tokenVocabulary")) { |
||||
tool.error("tokdef/tokenVocabulary options are invalid >= ANTLR 2.6.0.\n" + |
||||
" Use importVocab/exportVocab instead. Please see the documentation.\n" + |
||||
" The previous options were so heinous that Terence changed the whole\n" + |
||||
" vocabulary mechanism; it was better to change the names rather than\n" + |
||||
" subtly change the functionality of the known options. Sorry!", grammar.getFilename(), value.getLine(), value.getColumn()); |
||||
} |
||||
else if (key.getText().equals("literal") && |
||||
grammar instanceof LexerGrammar) { |
||||
tool.error("the literal option is invalid >= ANTLR 2.6.0.\n" + |
||||
" Use the \"tokens {...}\" mechanism instead.", |
||||
grammar.getFilename(), value.getLine(), value.getColumn()); |
||||
} |
||||
else if (key.getText().equals("exportVocab")) { |
||||
// Set the token manager associated with the parser
|
||||
if (value.getType() == ANTLRParser.RULE_REF || value.getType() == ANTLRParser.TOKEN_REF) { |
||||
grammar.exportVocab = value.getText(); |
||||
} |
||||
else { |
||||
tool.error("exportVocab must be an identifier", grammar.getFilename(), value.getLine(), value.getColumn()); |
||||
} |
||||
} |
||||
else if (key.getText().equals("importVocab")) { |
||||
if (value.getType() == ANTLRParser.RULE_REF || value.getType() == ANTLRParser.TOKEN_REF) { |
||||
grammar.importVocab = value.getText(); |
||||
} |
||||
else { |
||||
tool.error("importVocab must be an identifier", grammar.getFilename(), value.getLine(), value.getColumn()); |
||||
} |
||||
} |
||||
else if ( key.getText().equals("k") ) { |
||||
if( grammar instanceof TreeWalkerGrammar |
||||
&& ! value.getText().equals("1") ) { |
||||
tool.error("Treewalkers only support k=1", grammar.getFilename(), value.getLine(), value.getColumn()); |
||||
} |
||||
else { |
||||
grammar.setOption(key.getText(), value); |
||||
} |
||||
} |
||||
else { |
||||
// Forward all unrecognized options to the grammar
|
||||
grammar.setOption(key.getText(), value); |
||||
} |
||||
} |
||||
|
||||
public void setRuleOption(Token key, Token value) { |
||||
} |
||||
|
||||
public void setSubruleOption(Token key, Token value) { |
||||
} |
||||
|
||||
/** Start a new lexer */ |
||||
public void startLexer(String file, Token name, String superClass, String doc) { |
||||
if (numLexers > 0) { |
||||
tool.panic("You may only have one lexer per grammar file: class " + name.getText()); |
||||
} |
||||
numLexers++; |
||||
reset(); |
||||
//System.out.println("Processing lexer '" + name.getText() + "'");
|
||||
// Does the lexer already exist?
|
||||
Grammar g = (Grammar)grammars.get(name); |
||||
if (g != null) { |
||||
if (!(g instanceof LexerGrammar)) { |
||||
tool.panic("'" + name.getText() + "' is already defined as a non-lexer"); |
||||
} |
||||
else { |
||||
tool.panic("Lexer '" + name.getText() + "' is already defined"); |
||||
} |
||||
} |
||||
else { |
||||
// Create a new lexer grammar
|
||||
LexerGrammar lg = new LexerGrammar(name.getText(), tool, superClass); |
||||
lg.comment = doc; |
||||
lg.processArguments(args); |
||||
lg.setFilename(file); |
||||
grammars.put(lg.getClassName(), lg); |
||||
// Use any preamble action
|
||||
lg.preambleAction = thePreambleAction; |
||||
thePreambleAction = new CommonToken(Token.INVALID_TYPE, ""); |
||||
// This is now the current grammar
|
||||
grammar = lg; |
||||
} |
||||
} |
||||
|
||||
/** Start a new parser */ |
||||
public void startParser(String file, Token name, String superClass, String doc) { |
||||
if (numParsers > 0) { |
||||
tool.panic("You may only have one parser per grammar file: class " + name.getText()); |
||||
} |
||||
numParsers++; |
||||
reset(); |
||||
//System.out.println("Processing parser '" + name.getText() + "'");
|
||||
// Is this grammar already defined?
|
||||
Grammar g = (Grammar)grammars.get(name); |
||||
if (g != null) { |
||||
if (!(g instanceof ParserGrammar)) { |
||||
tool.panic("'" + name.getText() + "' is already defined as a non-parser"); |
||||
} |
||||
else { |
||||
tool.panic("Parser '" + name.getText() + "' is already defined"); |
||||
} |
||||
} |
||||
else { |
||||
// Create a new grammar
|
||||
grammar = new ParserGrammar(name.getText(), tool, superClass); |
||||
grammar.comment = doc; |
||||
grammar.processArguments(args); |
||||
grammar.setFilename(file); |
||||
grammars.put(grammar.getClassName(), grammar); |
||||
// Use any preamble action
|
||||
grammar.preambleAction = thePreambleAction; |
||||
thePreambleAction = new CommonToken(Token.INVALID_TYPE, ""); |
||||
} |
||||
} |
||||
|
||||
/** Start a new tree-walker */ |
||||
public void startTreeWalker(String file, Token name, String superClass, String doc) { |
||||
if (numTreeParsers > 0) { |
||||
tool.panic("You may only have one tree parser per grammar file: class " + name.getText()); |
||||
} |
||||
numTreeParsers++; |
||||
reset(); |
||||
//System.out.println("Processing tree-walker '" + name.getText() + "'");
|
||||
// Is this grammar already defined?
|
||||
Grammar g = (Grammar)grammars.get(name); |
||||
if (g != null) { |
||||
if (!(g instanceof TreeWalkerGrammar)) { |
||||
tool.panic("'" + name.getText() + "' is already defined as a non-tree-walker"); |
||||
} |
||||
else { |
||||
tool.panic("Tree-walker '" + name.getText() + "' is already defined"); |
||||
} |
||||
} |
||||
else { |
||||
// Create a new grammar
|
||||
grammar = new TreeWalkerGrammar(name.getText(), tool, superClass); |
||||
grammar.comment = doc; |
||||
grammar.processArguments(args); |
||||
grammar.setFilename(file); |
||||
grammars.put(grammar.getClassName(), grammar); |
||||
// Use any preamble action
|
||||
grammar.preambleAction = thePreambleAction; |
||||
thePreambleAction = new CommonToken(Token.INVALID_TYPE, ""); |
||||
} |
||||
} |
||||
|
||||
public void synPred() { |
||||
} |
||||
|
||||
public void zeroOrMoreSubRule() { |
||||
} |
||||
} |
||||
@ -1,68 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/DumpASTVisitor.java#2 $
|
||||
*/ |
||||
|
||||
|
||||
|
||||
import com.fr.third.antlr.collections.AST; |
||||
|
||||
|
||||
/** Simple class to dump the contents of an AST to the output */ |
||||
public class DumpASTVisitor implements ASTVisitor { |
||||
protected int level = 0; |
||||
|
||||
|
||||
private void tabs() { |
||||
for (int i = 0; i < level; i++) { |
||||
System.out.print(" "); |
||||
} |
||||
} |
||||
|
||||
public void visit(AST node) { |
||||
// Flatten this level of the tree if it has no children
|
||||
boolean flatten = /*true*/ false; |
||||
AST node2; |
||||
for (node2 = node; node2 != null; node2 = node2.getNextSibling()) { |
||||
if (node2.getFirstChild() != null) { |
||||
flatten = false; |
||||
break; |
||||
} |
||||
} |
||||
|
||||
for (node2 = node; node2 != null; node2 = node2.getNextSibling()) { |
||||
if (!flatten || node2 == node) { |
||||
tabs(); |
||||
} |
||||
if (node2.getText() == null) { |
||||
System.out.print("nil"); |
||||
} |
||||
else { |
||||
System.out.print(node2.getText()); |
||||
} |
||||
|
||||
System.out.print(" [" + node2.getType() + "] "); |
||||
|
||||
if (flatten) { |
||||
System.out.print(' '); |
||||
} |
||||
else { |
||||
System.out.println(""); |
||||
} |
||||
|
||||
if (node2.getFirstChild() != null) { |
||||
level++; |
||||
visit(node2.getFirstChild()); |
||||
level--; |
||||
} |
||||
} |
||||
|
||||
if (flatten) { |
||||
System.out.println(""); |
||||
} |
||||
} |
||||
} |
||||
@ -1,22 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/ExceptionHandler.java#2 $
|
||||
*/ |
||||
|
||||
class ExceptionHandler { |
||||
// Type of the ANTLR exception class to catch and the variable decl
|
||||
protected Token exceptionTypeAndName; |
||||
// The action to be executed when the exception is caught
|
||||
protected Token action; |
||||
|
||||
|
||||
public ExceptionHandler(Token exceptionTypeAndName_, |
||||
Token action_) { |
||||
exceptionTypeAndName = exceptionTypeAndName_; |
||||
action = action_; |
||||
} |
||||
} |
||||
@ -1,29 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/ExceptionSpec.java#2 $
|
||||
*/ |
||||
|
||||
import com.fr.third.antlr.collections.impl.Vector; |
||||
|
||||
class ExceptionSpec { |
||||
// Non-null if this refers to a labeled rule
|
||||
// Use a token instead of a string to get the line information
|
||||
protected Token label; |
||||
|
||||
// List of ExceptionHandler (catch phrases)
|
||||
protected Vector handlers; |
||||
|
||||
|
||||
public ExceptionSpec(Token label_) { |
||||
label = label_; |
||||
handlers = new Vector(); |
||||
} |
||||
|
||||
public void addHandler(ExceptionHandler handler) { |
||||
handlers.appendElement(handler); |
||||
} |
||||
} |
||||
@ -1,14 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/FileCopyException.java#2 $
|
||||
*/ |
||||
|
||||
class FileCopyException extends java.io.IOException { |
||||
public FileCopyException(String msg) { |
||||
super(msg); |
||||
} |
||||
} |
||||
@ -1,27 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/FileLineFormatter.java#2 $
|
||||
*/ |
||||
|
||||
public abstract class FileLineFormatter { |
||||
|
||||
private static FileLineFormatter formatter = new DefaultFileLineFormatter(); |
||||
|
||||
public static FileLineFormatter getFormatter() { |
||||
return formatter; |
||||
} |
||||
|
||||
public static void setFormatter(FileLineFormatter f) { |
||||
formatter = f; |
||||
} |
||||
|
||||
/** @param fileName the file that should appear in the prefix. (or null) |
||||
* @param line the line (or -1) |
||||
* @param column the column (or -1) |
||||
*/ |
||||
public abstract String getFormatString(String fileName, int line, int column); |
||||
} |
||||
@ -1,288 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/Grammar.java#2 $
|
||||
*/ |
||||
|
||||
import java.io.IOException; |
||||
import java.util.Enumeration; |
||||
import java.util.Hashtable; |
||||
|
||||
import com.fr.third.antlr.collections.impl.Vector; |
||||
|
||||
|
||||
/**A Grammar holds a set of rules (which are stored |
||||
* in a symbol table). Most of the time a grammar |
||||
* needs a code generator and an LLkAnalyzer too. |
||||
*/ |
||||
public abstract class Grammar { |
||||
protected Tool antlrTool; |
||||
protected CodeGenerator generator; |
||||
protected LLkGrammarAnalyzer theLLkAnalyzer; |
||||
protected Hashtable symbols; |
||||
protected boolean buildAST = false; |
||||
protected boolean analyzerDebug = false; |
||||
protected boolean interactive = false; |
||||
protected String superClass = null; |
||||
|
||||
/** The token manager associated with the grammar, if any. |
||||
// The token manager is responsible for maintaining the set of valid tokens, and
|
||||
// is conceptually shared between the lexer and parser. This may be either a
|
||||
// LexerGrammar or a ImportVocabTokenManager.
|
||||
*/ |
||||
protected TokenManager tokenManager; |
||||
|
||||
/** The name of the export vocabulary...used to generate the output |
||||
* token types interchange file. |
||||
*/ |
||||
protected String exportVocab = null; |
||||
|
||||
/** The name of the import vocabulary. "Initial conditions" |
||||
*/ |
||||
protected String importVocab = null; |
||||
|
||||
// Mapping from String keys to Token option values
|
||||
protected Hashtable options; |
||||
// Vector of RuleSymbol entries
|
||||
protected Vector rules; |
||||
|
||||
protected Token preambleAction = new CommonToken(Token.INVALID_TYPE, ""); |
||||
protected String className = null; |
||||
protected String fileName = null; |
||||
protected Token classMemberAction = new CommonToken(Token.INVALID_TYPE, ""); |
||||
protected boolean hasSyntacticPredicate = false; |
||||
protected boolean hasUserErrorHandling = false; |
||||
|
||||
// max lookahead that can be attempted for this parser.
|
||||
protected int maxk = 1; |
||||
|
||||
// options
|
||||
protected boolean traceRules = false; |
||||
protected boolean debuggingOutput = false; |
||||
protected boolean defaultErrorHandler = true; |
||||
|
||||
protected String comment = null; // javadoc comment
|
||||
|
||||
public Grammar(String className_, Tool tool_, String superClass) { |
||||
className = className_; |
||||
antlrTool = tool_; |
||||
symbols = new Hashtable(); |
||||
options = new Hashtable(); |
||||
rules = new Vector(100); |
||||
this.superClass = superClass; |
||||
} |
||||
|
||||
/** Define a rule */ |
||||
public void define(RuleSymbol rs) { |
||||
rules.appendElement(rs); |
||||
// add the symbol to the rules hash table
|
||||
symbols.put(rs.getId(), rs); |
||||
} |
||||
|
||||
/** Top-level call to generate the code for this grammar */ |
||||
public abstract void generate() throws IOException; |
||||
|
||||
protected String getClassName() { |
||||
return className; |
||||
} |
||||
|
||||
/* Does this grammar have a default error handler? */ |
||||
public boolean getDefaultErrorHandler() { |
||||
return defaultErrorHandler; |
||||
} |
||||
|
||||
public String getFilename() { |
||||
return fileName; |
||||
} |
||||
|
||||
/** Get an integer option. Given the name of the option find its |
||||
* associated integer value. If the associated value is not an integer or |
||||
* is not in the table, then throw an exception of type NumberFormatException. |
||||
* @param key The name of the option |
||||
* @return The value associated with the key. |
||||
*/ |
||||
public int getIntegerOption(String key) throws NumberFormatException { |
||||
Token t = (Token)options.get(key); |
||||
if (t == null || t.getType() != ANTLRTokenTypes.INT) { |
||||
throw new NumberFormatException(); |
||||
} |
||||
else { |
||||
return Integer.parseInt(t.getText()); |
||||
} |
||||
} |
||||
|
||||
/** Get an option. Given the name of the option find its associated value. |
||||
* @param key The name of the option |
||||
* @return The value associated with the key, or null if the key has not been set. |
||||
*/ |
||||
public Token getOption(String key) { |
||||
return (Token)options.get(key); |
||||
} |
||||
|
||||
// Get name of class from which generated parser/lexer inherits
|
||||
protected abstract String getSuperClass(); |
||||
|
||||
public GrammarSymbol getSymbol(String s) { |
||||
return (GrammarSymbol)symbols.get(s); |
||||
} |
||||
|
||||
public Enumeration getSymbols() { |
||||
return symbols.elements(); |
||||
} |
||||
|
||||
/** Check the existence of an option in the table |
||||
* @param key The name of the option |
||||
* @return true if the option is in the table |
||||
*/ |
||||
public boolean hasOption(String key) { |
||||
return options.containsKey(key); |
||||
} |
||||
|
||||
/** Is a rule symbol defined? (not used for tokens) */ |
||||
public boolean isDefined(String s) { |
||||
return symbols.containsKey(s); |
||||
} |
||||
|
||||
/**Process command line arguments. Implemented in subclasses */ |
||||
public abstract void processArguments(String[] args); |
||||
|
||||
public void setCodeGenerator(CodeGenerator gen) { |
||||
generator = gen; |
||||
} |
||||
|
||||
public void setFilename(String s) { |
||||
fileName = s; |
||||
} |
||||
|
||||
public void setGrammarAnalyzer(LLkGrammarAnalyzer a) { |
||||
theLLkAnalyzer = a; |
||||
} |
||||
|
||||
/** Set a generic option. |
||||
* This associates a generic option key with a Token value. |
||||
* No validation is performed by this method, although users of the value |
||||
* (code generation and/or analysis) may require certain formats. |
||||
* The value is stored as a token so that the location of an error |
||||
* can be reported. |
||||
* @param key The name of the option. |
||||
* @param value The value to associate with the key. |
||||
* @return true if the option was a valid generic grammar option, false o/w |
||||
*/ |
||||
public boolean setOption(String key, Token value) { |
||||
options.put(key, value); |
||||
String s = value.getText(); |
||||
int i; |
||||
if (key.equals("k")) { |
||||
try { |
||||
maxk = getIntegerOption("k"); |
||||
if ( maxk<=0 ) { |
||||
antlrTool.error("option 'k' must be greater than 0 (was " + |
||||
value.getText() + ")", |
||||
getFilename(), |
||||
value.getLine(), |
||||
value.getColumn()); |
||||
maxk = 1; |
||||
} |
||||
} |
||||
catch (NumberFormatException e) { |
||||
antlrTool.error("option 'k' must be an integer (was " + value.getText() + ")", getFilename(), value.getLine(), value.getColumn()); |
||||
} |
||||
return true; |
||||
} |
||||
if (key.equals("codeGenMakeSwitchThreshold")) { |
||||
try { |
||||
i = getIntegerOption("codeGenMakeSwitchThreshold"); |
||||
} |
||||
catch (NumberFormatException e) { |
||||
antlrTool.error("option 'codeGenMakeSwitchThreshold' must be an integer", getFilename(), value.getLine(), value.getColumn()); |
||||
} |
||||
return true; |
||||
} |
||||
if (key.equals("codeGenBitsetTestThreshold")) { |
||||
try { |
||||
i = getIntegerOption("codeGenBitsetTestThreshold"); |
||||
} |
||||
catch (NumberFormatException e) { |
||||
antlrTool.error("option 'codeGenBitsetTestThreshold' must be an integer", getFilename(), value.getLine(), value.getColumn()); |
||||
} |
||||
return true; |
||||
} |
||||
if (key.equals("defaultErrorHandler")) { |
||||
if (s.equals("true")) { |
||||
defaultErrorHandler = true; |
||||
} |
||||
else if (s.equals("false")) { |
||||
defaultErrorHandler = false; |
||||
} |
||||
else { |
||||
antlrTool.error("Value for defaultErrorHandler must be true or false", getFilename(), value.getLine(), value.getColumn()); |
||||
} |
||||
return true; |
||||
} |
||||
if (key.equals("analyzerDebug")) { |
||||
if (s.equals("true")) { |
||||
analyzerDebug = true; |
||||
} |
||||
else if (s.equals("false")) { |
||||
analyzerDebug = false; |
||||
} |
||||
else { |
||||
antlrTool.error("option 'analyzerDebug' must be true or false", getFilename(), value.getLine(), value.getColumn()); |
||||
} |
||||
return true; |
||||
} |
||||
if (key.equals("codeGenDebug")) { |
||||
if (s.equals("true")) { |
||||
analyzerDebug = true; |
||||
} |
||||
else if (s.equals("false")) { |
||||
analyzerDebug = false; |
||||
} |
||||
else { |
||||
antlrTool.error("option 'codeGenDebug' must be true or false", getFilename(), value.getLine(), value.getColumn()); |
||||
} |
||||
return true; |
||||
} |
||||
if (key.equals("classHeaderSuffix")) { |
||||
return true; |
||||
} |
||||
if (key.equals("classHeaderPrefix")) { |
||||
return true; |
||||
} |
||||
if (key.equals("namespaceAntlr")) { |
||||
return true; |
||||
} |
||||
if (key.equals("namespaceStd")) { |
||||
return true; |
||||
} |
||||
if (key.equals("genHashLines")) { |
||||
return true; |
||||
} |
||||
if (key.equals("noConstructors")) { |
||||
return true; |
||||
} |
||||
return false; |
||||
} |
||||
|
||||
public void setTokenManager(TokenManager tokenManager_) { |
||||
tokenManager = tokenManager_; |
||||
} |
||||
|
||||
/** Print out the grammar without actions */ |
||||
public String toString() { |
||||
StringBuffer buf = new StringBuffer(20000); |
||||
Enumeration ids = rules.elements(); |
||||
while (ids.hasMoreElements()) { |
||||
RuleSymbol rs = (RuleSymbol)ids.nextElement(); |
||||
if (!rs.id.equals("mnextToken")) { |
||||
buf.append(rs.getBlock().toString()); |
||||
buf.append("\n\n"); |
||||
} |
||||
} |
||||
return buf.toString(); |
||||
} |
||||
|
||||
} |
||||
@ -1,36 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/GrammarAnalyzer.java#2 $
|
||||
*/ |
||||
|
||||
/**A GrammarAnalyzer computes lookahead from Grammar (which contains |
||||
* a grammar symbol table) and can then answer questions about the |
||||
* grammar. |
||||
* |
||||
* To access the RuleBlock for a rule name, the grammar symbol table |
||||
* is consulted. |
||||
* |
||||
* There should be no distinction between static & dynamic analysis. |
||||
* In other words, some of the easy analysis can be done statically |
||||
* and then the part that is hard statically can be deferred to |
||||
* parse-time. Interestingly, computing LL(k) for k>1 lookahead |
||||
* statically is O(|T|^k) where T is the grammar vocabulary, but, |
||||
* is O(k) at run-time (ignoring the large constant associated with |
||||
* the size of the grammar). In English, the difference can be |
||||
* described as "find the set of all possible k-sequences of input" |
||||
* versus "does this specific k-sequence match?". |
||||
*/ |
||||
public interface GrammarAnalyzer { |
||||
/**The epsilon token type is an imaginary type used |
||||
* during analysis. It indicates an incomplete look() computation. |
||||
* Must be kept consistent with Token constants to be between |
||||
* MIN_USER_TYPE and INVALID_TYPE. |
||||
*/ |
||||
// public static final int EPSILON_TYPE = 2;
|
||||
public static final int NONDETERMINISTIC = Integer.MAX_VALUE; // lookahead depth
|
||||
public static final int LOOKAHEAD_DEPTH_INIT = -1; |
||||
} |
||||
@ -1,68 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/GrammarAtom.java#2 $
|
||||
*/ |
||||
|
||||
/** A GrammarAtom is either a token ref, a character ref, or string. |
||||
* The analysis doesn't care. |
||||
*/ |
||||
abstract class GrammarAtom extends AlternativeElement { |
||||
protected String label; |
||||
protected String atomText; |
||||
protected int tokenType = Token.INVALID_TYPE; |
||||
protected boolean not = false; // ~T or ~'c' or ~"foo"
|
||||
/** Set to type of AST node to create during parse. Defaults to what is |
||||
* set in the TokenSymbol. |
||||
*/ |
||||
protected String ASTNodeType = null; |
||||
|
||||
public GrammarAtom(Grammar g, Token t, int autoGenType) { |
||||
super(g, t, autoGenType); |
||||
atomText = t.getText(); |
||||
} |
||||
|
||||
public String getLabel() { |
||||
return label; |
||||
} |
||||
|
||||
public String getText() { |
||||
return atomText; |
||||
} |
||||
|
||||
public int getType() { |
||||
return tokenType; |
||||
} |
||||
|
||||
public void setLabel(String label_) { |
||||
label = label_; |
||||
} |
||||
|
||||
public String getASTNodeType() { |
||||
return ASTNodeType; |
||||
} |
||||
|
||||
public void setASTNodeType(String type) { |
||||
ASTNodeType = type; |
||||
} |
||||
|
||||
public void setOption(Token option, Token value) { |
||||
if (option.getText().equals("AST")) { |
||||
setASTNodeType(value.getText()); |
||||
} |
||||
else { |
||||
grammar.antlrTool.error("Invalid element option:" + option.getText(), |
||||
grammar.getFilename(), option.getLine(), option.getColumn()); |
||||
} |
||||
} |
||||
|
||||
public String toString() { |
||||
String s = " "; |
||||
if (label != null) s += label + ":"; |
||||
if (not) s += "~"; |
||||
return s + atomText; |
||||
} |
||||
} |
||||
@ -1,62 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/GrammarElement.java#2 $
|
||||
*/ |
||||
|
||||
/**A GrammarElement is a generic node in our |
||||
* data structure that holds a grammar in memory. |
||||
* This data structure can be used for static |
||||
* analysis or for dynamic analysis (during parsing). |
||||
* Every node must know which grammar owns it, how |
||||
* to generate code, and how to do analysis. |
||||
*/ |
||||
abstract class GrammarElement { |
||||
public static final int AUTO_GEN_NONE = 1; |
||||
public static final int AUTO_GEN_CARET = 2; |
||||
public static final int AUTO_GEN_BANG = 3; |
||||
|
||||
/* |
||||
* Note that Java does static argument type matching to |
||||
* determine which function to execute on the receiver. |
||||
* Here, that implies that we cannot simply say |
||||
* grammar.generator.gen(this) in GrammarElement or |
||||
* only CodeGenerator.gen(GrammarElement ge) would |
||||
* ever be called. |
||||
*/ |
||||
protected Grammar grammar; |
||||
protected int line; |
||||
protected int column; |
||||
|
||||
public GrammarElement(Grammar g) { |
||||
grammar = g; |
||||
line = -1; |
||||
column = -1; |
||||
} |
||||
|
||||
public GrammarElement(Grammar g, Token start) { |
||||
grammar = g; |
||||
line = start.getLine(); |
||||
column = start.getColumn(); |
||||
} |
||||
|
||||
public void generate() { |
||||
} |
||||
|
||||
public int getLine() { |
||||
return line; |
||||
} |
||||
|
||||
public int getColumn() { |
||||
return column; |
||||
} |
||||
|
||||
public Lookahead look(int k) { |
||||
return null; |
||||
} |
||||
|
||||
public abstract String toString(); |
||||
} |
||||
@ -1,30 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/GrammarSymbol.java#2 $
|
||||
*/ |
||||
|
||||
/**A GrammarSymbol is a generic symbol that can be |
||||
* added to the symbol table for a grammar. |
||||
*/ |
||||
abstract class GrammarSymbol { |
||||
protected String id; |
||||
|
||||
public GrammarSymbol() { |
||||
} |
||||
|
||||
public GrammarSymbol(String s) { |
||||
id = s; |
||||
} |
||||
|
||||
public String getId() { |
||||
return id; |
||||
} |
||||
|
||||
public void setId(String s) { |
||||
id = s; |
||||
} |
||||
} |
||||
@ -1,102 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/ImportVocabTokenManager.java#2 $
|
||||
*/ |
||||
|
||||
import java.io.BufferedReader; |
||||
import java.io.File; |
||||
import java.io.FileNotFoundException; |
||||
import java.io.FileReader; |
||||
import java.io.Reader; |
||||
|
||||
|
||||
/** Static implementation of the TokenManager, used for importVocab option */ |
||||
class ImportVocabTokenManager extends SimpleTokenManager implements Cloneable { |
||||
private String filename; |
||||
protected Grammar grammar; |
||||
|
||||
// FIXME: it would be nice if the path to the original grammar file was
|
||||
// also searched.
|
||||
ImportVocabTokenManager(Grammar grammar, String filename_, String name_, Tool tool_) { |
||||
// initialize
|
||||
super(name_, tool_); |
||||
|
||||
this.grammar = grammar; |
||||
this.filename = filename_; |
||||
|
||||
// Figure out exactly where the file lives. Check $PWD first,
|
||||
// and then search in -o <output_dir>.
|
||||
//
|
||||
File grammarFile = new File(filename); |
||||
|
||||
if (!grammarFile.exists()) { |
||||
grammarFile = new File(antlrTool.getOutputDirectory(), filename); |
||||
|
||||
if (!grammarFile.exists()) { |
||||
antlrTool.panic("Cannot find importVocab file '" + filename + "'"); |
||||
} |
||||
} |
||||
|
||||
setReadOnly(true); |
||||
|
||||
// Read a file with lines of the form ID=number
|
||||
try { |
||||
Reader fileIn = new BufferedReader(new FileReader(grammarFile)); |
||||
ANTLRTokdefLexer tokdefLexer = new ANTLRTokdefLexer(fileIn); |
||||
ANTLRTokdefParser tokdefParser = new ANTLRTokdefParser(tokdefLexer); |
||||
tokdefParser.setTool(antlrTool); |
||||
tokdefParser.setFilename(filename); |
||||
tokdefParser.file(this); |
||||
} |
||||
catch (FileNotFoundException fnf) { |
||||
antlrTool.panic("Cannot find importVocab file '" + filename + "'"); |
||||
} |
||||
catch (RecognitionException ex) { |
||||
antlrTool.panic("Error parsing importVocab file '" + filename + "': " + ex.toString()); |
||||
} |
||||
catch (TokenStreamException ex) { |
||||
antlrTool.panic("Error reading importVocab file '" + filename + "'"); |
||||
} |
||||
} |
||||
|
||||
public Object clone() { |
||||
ImportVocabTokenManager tm; |
||||
tm = (ImportVocabTokenManager)super.clone(); |
||||
tm.filename = this.filename; |
||||
tm.grammar = this.grammar; |
||||
return tm; |
||||
} |
||||
|
||||
/** define a token. */ |
||||
public void define(TokenSymbol ts) { |
||||
super.define(ts); |
||||
} |
||||
|
||||
/** define a token. Intended for use only when reading the importVocab file. */ |
||||
public void define(String s, int ttype) { |
||||
TokenSymbol ts = null; |
||||
if (s.startsWith("\"")) { |
||||
ts = new StringLiteralSymbol(s); |
||||
} |
||||
else { |
||||
ts = new TokenSymbol(s); |
||||
} |
||||
ts.setTokenType(ttype); |
||||
super.define(ts); |
||||
maxToken = (ttype + 1) > maxToken ? (ttype + 1) : maxToken; // record maximum token type
|
||||
} |
||||
|
||||
/** importVocab token manager is read-only if output would be same as input */ |
||||
public boolean isReadOnly() { |
||||
return readOnly; |
||||
} |
||||
|
||||
/** Get the next unused token type. */ |
||||
public int nextTokenType() { |
||||
return super.nextTokenType(); |
||||
} |
||||
} |
||||
@ -1,131 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/InputBuffer.java#2 $
|
||||
*/ |
||||
|
||||
// SAS: Added this class to genericise the input buffers for scanners
|
||||
// This allows a scanner to use a binary (FileInputStream) or
|
||||
// text (FileReader) stream of data; the generated scanner
|
||||
// subclass will define the input stream
|
||||
// There are two subclasses to this: CharBuffer and ByteBuffer
|
||||
|
||||
|
||||
|
||||
/**A Stream of characters fed to the lexer from a InputStream that can |
||||
* be rewound via mark()/rewind() methods. |
||||
* <p> |
||||
* A dynamic array is used to buffer up all the input characters. Normally, |
||||
* "k" characters are stored in the buffer. More characters may be stored during |
||||
* guess mode (testing syntactic predicate), or when LT(i>k) is referenced. |
||||
* Consumption of characters is deferred. In other words, reading the next |
||||
* character is not done by conume(), but deferred until needed by LA or LT. |
||||
* <p> |
||||
* |
||||
* @see com.fr.third.antlr.CharQueue |
||||
*/ |
||||
public abstract class InputBuffer { |
||||
// Number of active markers
|
||||
protected int nMarkers = 0; |
||||
|
||||
// Additional offset used when markers are active
|
||||
protected int markerOffset = 0; |
||||
|
||||
// Number of calls to consume() since last LA() or LT() call
|
||||
protected int numToConsume = 0; |
||||
|
||||
// Circular queue
|
||||
protected CharQueue queue; |
||||
|
||||
/** Create an input buffer */ |
||||
public InputBuffer() { |
||||
queue = new CharQueue(1); |
||||
} |
||||
|
||||
/** This method updates the state of the input buffer so that |
||||
* the text matched since the most recent mark() is no longer |
||||
* held by the buffer. So, you either do a mark/rewind for |
||||
* failed predicate or mark/commit to keep on parsing without |
||||
* rewinding the input. |
||||
*/ |
||||
public void commit() { |
||||
nMarkers--; |
||||
} |
||||
|
||||
/** Mark another character for deferred consumption */ |
||||
public void consume() { |
||||
numToConsume++; |
||||
} |
||||
|
||||
/** Ensure that the input buffer is sufficiently full */ |
||||
public abstract void fill(int amount) throws CharStreamException; |
||||
|
||||
public String getLAChars() { |
||||
StringBuffer la = new StringBuffer(); |
||||
for (int i = markerOffset; i < queue.nbrEntries; i++) |
||||
la.append(queue.elementAt(i)); |
||||
return la.toString(); |
||||
} |
||||
|
||||
public String getMarkedChars() { |
||||
StringBuffer marked = new StringBuffer(); |
||||
for (int i = 0; i < markerOffset; i++) |
||||
marked.append(queue.elementAt(i)); |
||||
return marked.toString(); |
||||
} |
||||
|
||||
public boolean isMarked() { |
||||
return (nMarkers != 0); |
||||
} |
||||
|
||||
/** Get a lookahead character */ |
||||
public char LA(int i) throws CharStreamException { |
||||
fill(i); |
||||
return queue.elementAt(markerOffset + i - 1); |
||||
} |
||||
|
||||
/**Return an integer marker that can be used to rewind the buffer to |
||||
* its current state. |
||||
*/ |
||||
public int mark() { |
||||
syncConsume(); |
||||
nMarkers++; |
||||
return markerOffset; |
||||
} |
||||
|
||||
/**Rewind the character buffer to a marker. |
||||
* @param mark Marker returned previously from mark() |
||||
*/ |
||||
public void rewind(int mark) { |
||||
syncConsume(); |
||||
markerOffset = mark; |
||||
nMarkers--; |
||||
} |
||||
|
||||
/** Reset the input buffer |
||||
*/ |
||||
public void reset() { |
||||
nMarkers = 0; |
||||
markerOffset = 0; |
||||
numToConsume = 0; |
||||
queue.reset(); |
||||
} |
||||
|
||||
/** Sync up deferred consumption */ |
||||
protected void syncConsume() { |
||||
while (numToConsume > 0) { |
||||
if (nMarkers > 0) { |
||||
// guess mode -- leave leading characters and bump offset.
|
||||
markerOffset++; |
||||
} |
||||
else { |
||||
// normal mode -- remove first character
|
||||
queue.removeFirst(); |
||||
} |
||||
numToConsume--; |
||||
} |
||||
} |
||||
} |
||||
@ -1,34 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/JavaBlockFinishingInfo.java#2 $
|
||||
*/ |
||||
|
||||
class JavaBlockFinishingInfo { |
||||
String postscript; // what to generate to terminate block
|
||||
boolean generatedSwitch;// did block finish with "default:" of switch?
|
||||
boolean generatedAnIf; |
||||
|
||||
/** When generating an if or switch, end-of-token lookahead sets |
||||
* will become the else or default clause, don't generate an |
||||
* error clause in this case. |
||||
*/ |
||||
boolean needAnErrorClause; |
||||
|
||||
|
||||
public JavaBlockFinishingInfo() { |
||||
postscript = null; |
||||
generatedSwitch = false; |
||||
needAnErrorClause = true; |
||||
} |
||||
|
||||
public JavaBlockFinishingInfo(String ps, boolean genS, boolean generatedAnIf, boolean n) { |
||||
postscript = ps; |
||||
generatedSwitch = genS; |
||||
this.generatedAnIf = generatedAnIf; |
||||
needAnErrorClause = n; |
||||
} |
||||
} |
||||
@ -1,87 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/JavaCharFormatter.java#2 $
|
||||
*/ |
||||
|
||||
class JavaCharFormatter implements CharFormatter { |
||||
|
||||
|
||||
/** Given a character value, return a string representing the character |
||||
* that can be embedded inside a string literal or character literal |
||||
* This works for Java/C/C++ code-generation and languages with compatible |
||||
* special-character-escapment. |
||||
* Code-generators for languages should override this method. |
||||
* @param c The character of interest. |
||||
* @param forCharLiteral true to escape for char literal, false for string literal |
||||
*/ |
||||
public String escapeChar(int c, boolean forCharLiteral) { |
||||
switch (c) { |
||||
// case GrammarAnalyzer.EPSILON_TYPE : return "<end-of-token>";
|
||||
case '\n': |
||||
return "\\n"; |
||||
case '\t': |
||||
return "\\t"; |
||||
case '\r': |
||||
return "\\r"; |
||||
case '\\': |
||||
return "\\\\"; |
||||
case '\'': |
||||
return forCharLiteral ? "\\'" : "'"; |
||||
case '"': |
||||
return forCharLiteral ? "\"" : "\\\""; |
||||
default : |
||||
if (c < ' ' || c > 126) { |
||||
if ((0x0000 <= c) && (c <= 0x000F)) { |
||||
return "\\u000" + Integer.toString(c, 16); |
||||
} |
||||
else if ((0x0010 <= c) && (c <= 0x00FF)) { |
||||
return "\\u00" + Integer.toString(c, 16); |
||||
} |
||||
else if ((0x0100 <= c) && (c <= 0x0FFF)) { |
||||
return "\\u0" + Integer.toString(c, 16); |
||||
} |
||||
else { |
||||
return "\\u" + Integer.toString(c, 16); |
||||
} |
||||
} |
||||
else { |
||||
return String.valueOf((char)c); |
||||
} |
||||
} |
||||
} |
||||
|
||||
/** Converts a String into a representation that can be use as a literal |
||||
* when surrounded by double-quotes. |
||||
* @param s The String to be changed into a literal |
||||
*/ |
||||
public String escapeString(String s) { |
||||
String retval = new String(); |
||||
for (int i = 0; i < s.length(); i++) { |
||||
retval += escapeChar(s.charAt(i), false); |
||||
} |
||||
return retval; |
||||
} |
||||
|
||||
/** Given a character value, return a string representing the character |
||||
* literal that can be recognized by the target language compiler. |
||||
* This works for languages that use single-quotes for character literals. |
||||
* Code-generators for languages should override this method. |
||||
* @param c The character of interest. |
||||
*/ |
||||
public String literalChar(int c) { |
||||
return "'" + escapeChar(c, true) + "'"; |
||||
} |
||||
|
||||
/** Converts a String into a string literal |
||||
* This works for languages that use double-quotes for string literals. |
||||
* Code-generators for languages should override this method. |
||||
* @param s The String to be changed into a literal |
||||
*/ |
||||
public String literalString(String s) { |
||||
return "\"" + escapeString(s) + "\""; |
||||
} |
||||
} |
||||
File diff suppressed because it is too large
Load Diff
@ -1,21 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
import java.io.IOException; |
||||
import java.io.PrintWriter; |
||||
import java.util.Map; |
||||
|
||||
/** |
||||
* Defines a strategy that can be used to manage the printwriter |
||||
* being used to write JavaCodeGenerator output |
||||
* |
||||
* TODO generalize so all code gens could use? |
||||
*/ |
||||
public interface JavaCodeGeneratorPrintWriterManager { |
||||
public PrintWriter setupOutput(Tool tool, Grammar grammar) throws IOException; |
||||
public PrintWriter setupOutput(Tool tool, String fileName) throws IOException; |
||||
public void startMapping(int sourceLine); |
||||
public void startSingleSourceLineMapping(int sourceLine); |
||||
public void endMapping(); |
||||
public void finishOutput() throws IOException; |
||||
public Map getSourceMaps(); |
||||
} |
||||
File diff suppressed because it is too large
Load Diff
@ -1,58 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/LLkGrammarAnalyzer.java#2 $
|
||||
*/ |
||||
|
||||
public interface LLkGrammarAnalyzer extends GrammarAnalyzer { |
||||
|
||||
|
||||
public boolean deterministic(AlternativeBlock blk); |
||||
|
||||
public boolean deterministic(OneOrMoreBlock blk); |
||||
|
||||
public boolean deterministic(ZeroOrMoreBlock blk); |
||||
|
||||
public Lookahead FOLLOW(int k, RuleEndElement end); |
||||
|
||||
public Lookahead look(int k, ActionElement action); |
||||
|
||||
public Lookahead look(int k, AlternativeBlock blk); |
||||
|
||||
public Lookahead look(int k, BlockEndElement end); |
||||
|
||||
public Lookahead look(int k, CharLiteralElement atom); |
||||
|
||||
public Lookahead look(int k, CharRangeElement end); |
||||
|
||||
public Lookahead look(int k, GrammarAtom atom); |
||||
|
||||
public Lookahead look(int k, OneOrMoreBlock blk); |
||||
|
||||
public Lookahead look(int k, RuleBlock blk); |
||||
|
||||
public Lookahead look(int k, RuleEndElement end); |
||||
|
||||
public Lookahead look(int k, RuleRefElement rr); |
||||
|
||||
public Lookahead look(int k, StringLiteralElement atom); |
||||
|
||||
public Lookahead look(int k, SynPredBlock blk); |
||||
|
||||
public Lookahead look(int k, TokenRangeElement end); |
||||
|
||||
public Lookahead look(int k, TreeElement end); |
||||
|
||||
public Lookahead look(int k, WildcardElement wc); |
||||
|
||||
public Lookahead look(int k, ZeroOrMoreBlock blk); |
||||
|
||||
public Lookahead look(int k, String rule); |
||||
|
||||
public void setGrammar(Grammar g); |
||||
|
||||
public boolean subruleCanBeInverted(AlternativeBlock blk, boolean forLexer); |
||||
} |
||||
@ -1,85 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/LLkParser.java#2 $
|
||||
*/ |
||||
|
||||
|
||||
|
||||
/**An LL(k) parser. |
||||
* |
||||
* @see com.fr.third.antlr.Token |
||||
* @see com.fr.third.antlr.TokenBuffer |
||||
*/ |
||||
public class LLkParser extends Parser { |
||||
int k; |
||||
|
||||
public LLkParser(int k_) { |
||||
k = k_; |
||||
} |
||||
|
||||
public LLkParser(ParserSharedInputState state, int k_) { |
||||
super(state); |
||||
k = k_; |
||||
} |
||||
|
||||
public LLkParser(TokenBuffer tokenBuf, int k_) { |
||||
k = k_; |
||||
setTokenBuffer(tokenBuf); |
||||
} |
||||
|
||||
public LLkParser(TokenStream lexer, int k_) { |
||||
k = k_; |
||||
TokenBuffer tokenBuf = new TokenBuffer(lexer); |
||||
setTokenBuffer(tokenBuf); |
||||
} |
||||
|
||||
/**Consume another token from the input stream. Can only write sequentially! |
||||
* If you need 3 tokens ahead, you must consume() 3 times. |
||||
* <p> |
||||
* Note that it is possible to overwrite tokens that have not been matched. |
||||
* For example, calling consume() 3 times when k=2, means that the first token |
||||
* consumed will be overwritten with the 3rd. |
||||
*/ |
||||
public void consume() throws TokenStreamException { |
||||
inputState.input.consume(); |
||||
} |
||||
|
||||
public int LA(int i) throws TokenStreamException { |
||||
return inputState.input.LA(i); |
||||
} |
||||
|
||||
public Token LT(int i) throws TokenStreamException { |
||||
return inputState.input.LT(i); |
||||
} |
||||
|
||||
private void trace(String ee, String rname) throws TokenStreamException { |
||||
traceIndent(); |
||||
System.out.print(ee + rname + ((inputState.guessing > 0)?"; [guessing]":"; ")); |
||||
for (int i = 1; i <= k; i++) { |
||||
if (i != 1) { |
||||
System.out.print(", "); |
||||
} |
||||
if ( LT(i)!=null ) { |
||||
System.out.print("LA(" + i + ")==" + LT(i).getText()); |
||||
} |
||||
else { |
||||
System.out.print("LA(" + i + ")==null"); |
||||
} |
||||
} |
||||
System.out.println(""); |
||||
} |
||||
|
||||
public void traceIn(String rname) throws TokenStreamException { |
||||
traceDepth += 1; |
||||
trace("> ", rname); |
||||
} |
||||
|
||||
public void traceOut(String rname) throws TokenStreamException { |
||||
trace("< ", rname); |
||||
traceDepth -= 1; |
||||
} |
||||
} |
||||
@ -1,179 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/LexerGrammar.java#2 $
|
||||
*/ |
||||
|
||||
|
||||
|
||||
import java.io.IOException; |
||||
|
||||
import com.fr.third.antlr.collections.impl.BitSet; |
||||
|
||||
|
||||
|
||||
/** Lexer-specific grammar subclass */ |
||||
class LexerGrammar extends Grammar { |
||||
// character set used by lexer
|
||||
protected BitSet charVocabulary; |
||||
// true if the lexer generates literal testing code for nextToken
|
||||
protected boolean testLiterals = true; |
||||
// true if the lexer generates case-sensitive LA(k) testing
|
||||
protected boolean caseSensitiveLiterals = true; |
||||
/** true if the lexer generates case-sensitive literals testing */ |
||||
protected boolean caseSensitive = true; |
||||
/** true if lexer is to ignore all unrecognized tokens */ |
||||
protected boolean filterMode = false; |
||||
|
||||
/** if filterMode is true, then filterRule can indicate an optional |
||||
* rule to use as the scarf language. If null, programmer used |
||||
* plain "filter=true" not "filter=rule". |
||||
*/ |
||||
protected String filterRule = null; |
||||
|
||||
LexerGrammar(String className_, Tool tool_, String superClass) { |
||||
super(className_, tool_, superClass); |
||||
// by default, use 0..127 for ASCII char vocabulary
|
||||
BitSet cv = new BitSet(); |
||||
for (int i = 0; i <= 127; i++) { |
||||
cv.add(i); |
||||
} |
||||
setCharVocabulary(cv); |
||||
|
||||
// Lexer usually has no default error handling
|
||||
defaultErrorHandler = false; |
||||
} |
||||
|
||||
/** Top-level call to generate the code */ |
||||
public void generate() throws IOException { |
||||
generator.gen(this); |
||||
} |
||||
|
||||
public String getSuperClass() { |
||||
// If debugging, use debugger version of scanner
|
||||
if (debuggingOutput) |
||||
return "debug.DebuggingCharScanner"; |
||||
return "CharScanner"; |
||||
} |
||||
|
||||
// Get the testLiterals option value
|
||||
public boolean getTestLiterals() { |
||||
return testLiterals; |
||||
} |
||||
|
||||
/**Process command line arguments. |
||||
* -trace have all rules call traceIn/traceOut |
||||
* -traceLexer have lexical rules call traceIn/traceOut |
||||
* -debug generate debugging output for parser debugger |
||||
*/ |
||||
public void processArguments(String[] args) { |
||||
for (int i = 0; i < args.length; i++) { |
||||
if (args[i].equals("-trace")) { |
||||
traceRules = true; |
||||
antlrTool.setArgOK(i); |
||||
} |
||||
else if (args[i].equals("-traceLexer")) { |
||||
traceRules = true; |
||||
antlrTool.setArgOK(i); |
||||
} |
||||
else if (args[i].equals("-debug")) { |
||||
debuggingOutput = true; |
||||
antlrTool.setArgOK(i); |
||||
} |
||||
} |
||||
} |
||||
|
||||
/** Set the character vocabulary used by the lexer */ |
||||
public void setCharVocabulary(BitSet b) { |
||||
charVocabulary = b; |
||||
} |
||||
|
||||
/** Set lexer options */ |
||||
public boolean setOption(String key, Token value) { |
||||
String s = value.getText(); |
||||
if (key.equals("buildAST")) { |
||||
antlrTool.warning("buildAST option is not valid for lexer", getFilename(), value.getLine(), value.getColumn()); |
||||
return true; |
||||
} |
||||
if (key.equals("testLiterals")) { |
||||
if (s.equals("true")) { |
||||
testLiterals = true; |
||||
} |
||||
else if (s.equals("false")) { |
||||
testLiterals = false; |
||||
} |
||||
else { |
||||
antlrTool.warning("testLiterals option must be true or false", getFilename(), value.getLine(), value.getColumn()); |
||||
} |
||||
return true; |
||||
} |
||||
if (key.equals("interactive")) { |
||||
if (s.equals("true")) { |
||||
interactive = true; |
||||
} |
||||
else if (s.equals("false")) { |
||||
interactive = false; |
||||
} |
||||
else { |
||||
antlrTool.error("interactive option must be true or false", getFilename(), value.getLine(), value.getColumn()); |
||||
} |
||||
return true; |
||||
} |
||||
if (key.equals("caseSensitive")) { |
||||
if (s.equals("true")) { |
||||
caseSensitive = true; |
||||
} |
||||
else if (s.equals("false")) { |
||||
caseSensitive = false; |
||||
} |
||||
else { |
||||
antlrTool.warning("caseSensitive option must be true or false", getFilename(), value.getLine(), value.getColumn()); |
||||
} |
||||
return true; |
||||
} |
||||
if (key.equals("caseSensitiveLiterals")) { |
||||
if (s.equals("true")) { |
||||
caseSensitiveLiterals = true; |
||||
} |
||||
else if (s.equals("false")) { |
||||
caseSensitiveLiterals = false; |
||||
} |
||||
else { |
||||
antlrTool.warning("caseSensitiveLiterals option must be true or false", getFilename(), value.getLine(), value.getColumn()); |
||||
} |
||||
return true; |
||||
} |
||||
if (key.equals("filter")) { |
||||
if (s.equals("true")) { |
||||
filterMode = true; |
||||
} |
||||
else if (s.equals("false")) { |
||||
filterMode = false; |
||||
} |
||||
else if (value.getType() == ANTLRTokenTypes.TOKEN_REF) { |
||||
filterMode = true; |
||||
filterRule = s; |
||||
} |
||||
else { |
||||
antlrTool.warning("filter option must be true, false, or a lexer rule name", getFilename(), value.getLine(), value.getColumn()); |
||||
} |
||||
return true; |
||||
} |
||||
if (key.equals("longestPossible")) { |
||||
antlrTool.warning("longestPossible option has been deprecated; ignoring it...", getFilename(), value.getLine(), value.getColumn()); |
||||
return true; |
||||
} |
||||
if (key.equals("className")) { |
||||
super.setOption(key, value); |
||||
return true; |
||||
} |
||||
if (super.setOption(key, value)) { |
||||
return true; |
||||
} |
||||
antlrTool.error("Invalid option: " + key, getFilename(), value.getLine(), value.getColumn()); |
||||
return false; |
||||
} |
||||
} |
||||
@ -1,80 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.jGuru.com
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/LexerSharedInputState.java#2 $
|
||||
*/ |
||||
|
||||
import java.io.Reader; |
||||
import java.io.InputStream; |
||||
|
||||
/** This object contains the data associated with an |
||||
* input stream of characters. Multiple lexers |
||||
* share a single LexerSharedInputState to lex |
||||
* the same input stream. |
||||
*/ |
||||
public class LexerSharedInputState { |
||||
protected int column = 1; |
||||
protected int line = 1; |
||||
protected int tokenStartColumn = 1; |
||||
protected int tokenStartLine = 1; |
||||
protected InputBuffer input; |
||||
|
||||
/** What file (if known) caused the problem? */ |
||||
protected String filename; |
||||
|
||||
public int guessing = 0; |
||||
|
||||
public LexerSharedInputState(InputBuffer inbuf) { |
||||
input = inbuf; |
||||
} |
||||
|
||||
public LexerSharedInputState(InputStream in) { |
||||
this(new ByteBuffer(in)); |
||||
} |
||||
|
||||
public LexerSharedInputState(Reader in) { |
||||
this(new CharBuffer(in)); |
||||
} |
||||
|
||||
public String getFilename() { |
||||
return filename; |
||||
} |
||||
|
||||
public InputBuffer getInput() { |
||||
return input; |
||||
} |
||||
|
||||
public int getLine() |
||||
{ |
||||
return line; |
||||
} |
||||
|
||||
public int getTokenStartColumn() |
||||
{ |
||||
return tokenStartColumn; |
||||
} |
||||
|
||||
public int getTokenStartLine() |
||||
{ |
||||
return tokenStartLine; |
||||
} |
||||
|
||||
public int getColumn() |
||||
{ |
||||
return column; |
||||
} |
||||
|
||||
public void reset() { |
||||
column = 1; |
||||
line = 1; |
||||
tokenStartColumn = 1; |
||||
tokenStartLine = 1; |
||||
guessing = 0; |
||||
filename = null; |
||||
input.reset(); |
||||
} |
||||
} |
||||
|
||||
@ -1,218 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/Lookahead.java#2 $
|
||||
*/ |
||||
|
||||
import com.fr.third.antlr.collections.impl.BitSet; |
||||
import com.fr.third.antlr.collections.impl.Vector; |
||||
|
||||
/**This object holds all information needed to represent |
||||
* the lookahead for any particular lookahead computation |
||||
* for a <b>single</b> lookahead depth. Final lookahead |
||||
* information is a simple bit set, but intermediate |
||||
* stages need computation cycle and FOLLOW information. |
||||
* |
||||
* <p> |
||||
* Concerning the <tt>cycle</tt> variable. |
||||
* If lookahead is computed for a RuleEnd node, then |
||||
* computation is part of a FOLLOW cycle for this rule. |
||||
* If lookahead is computed for a RuleBlock node, the |
||||
* computation is part of a FIRST cycle to this rule. |
||||
* |
||||
* <p> |
||||
* Concerning the <tt>epsilonDepth</tt> variable. |
||||
* This is not the depth relative to the rule reference |
||||
* that epsilon was encountered. That value is |
||||
* <pre> |
||||
* initial_k - epsilonDepth + 1 |
||||
* </pre> |
||||
* Also, lookahead depths past rule ref for local follow are: |
||||
* <pre> |
||||
* initial_k - (initial_k - epsilonDepth) |
||||
* </pre> |
||||
* Used for rule references. If we try |
||||
* to compute look(k, ruleref) and there are fewer |
||||
* than k lookahead terminals before the end of the |
||||
* the rule, epsilon will be returned (don't want to |
||||
* pass the end of the rule). We must track when the |
||||
* the lookahead got stuck. For example, |
||||
* <pre> |
||||
* a : b A B E F G; |
||||
* b : C ; |
||||
* </pre> |
||||
* LOOK(5, ref-to(b)) is {<EPSILON>} with depth = 4, which |
||||
* indicates that at 2 (5-4+1) tokens ahead, end of rule was reached. |
||||
* Therefore, the token at 4=5-(5-4) past rule ref b must be |
||||
* included in the set == F. |
||||
* The situation is complicated by the fact that a computation |
||||
* may hit the end of a rule at many different depths. For example, |
||||
* <pre> |
||||
* a : b A B C ; |
||||
* b : E F // epsilon depth of 1 relative to initial k=3
|
||||
* | G // epsilon depth of 2
|
||||
* ; |
||||
* </pre> |
||||
* Here, LOOK(3,ref-to(b)) returns epsilon, but the depths are |
||||
* {1, 2}; i.e., 3-(3-1) and 3-(3-2). Those are the lookahead depths |
||||
* past the rule ref needed for the local follow. |
||||
* |
||||
* <p> |
||||
* This is null unless an epsilon is created. |
||||
* |
||||
* @see com.fr.third.antlr.Lookahead#combineWith(Lookahead) |
||||
*/ |
||||
public class Lookahead implements Cloneable { |
||||
/** actual bitset of the lookahead */ |
||||
BitSet fset; |
||||
/** is this computation part of a computation cycle? */ |
||||
String cycle; |
||||
/** What k values were being computed when end of rule hit? */ |
||||
BitSet epsilonDepth; |
||||
/** Does this lookahead depth include Epsilon token type? This |
||||
* is used to avoid having a bit in the set for Epsilon as it |
||||
* conflicts with parsing binary files. |
||||
*/ |
||||
boolean hasEpsilon = false; |
||||
|
||||
public Lookahead() { |
||||
fset = new BitSet(); |
||||
} |
||||
|
||||
/** create a new lookahead set with the LL(1) set to the parameter */ |
||||
public Lookahead(BitSet p) { |
||||
fset = p; |
||||
} |
||||
|
||||
/** create an empty lookahead set, but with cycle */ |
||||
public Lookahead(String c) { |
||||
this(); |
||||
cycle = c; |
||||
} |
||||
|
||||
/** Make a deep copy of everything in this object */ |
||||
public Object clone() { |
||||
Lookahead p = null; |
||||
try { |
||||
p = (Lookahead)super.clone(); |
||||
p.fset = (BitSet)fset.clone(); |
||||
p.cycle = cycle; // strings are immutable
|
||||
if (epsilonDepth != null) { |
||||
p.epsilonDepth = (BitSet)epsilonDepth.clone(); |
||||
} |
||||
} |
||||
catch (CloneNotSupportedException e) { |
||||
throw new InternalError(); |
||||
} |
||||
return p; |
||||
} |
||||
|
||||
public void combineWith(Lookahead q) { |
||||
if (cycle == null) { // track at least one cycle
|
||||
cycle = q.cycle; |
||||
} |
||||
|
||||
if (q.containsEpsilon()) { |
||||
hasEpsilon = true; |
||||
} |
||||
|
||||
// combine epsilon depths
|
||||
if (epsilonDepth != null) { |
||||
if (q.epsilonDepth != null) { |
||||
epsilonDepth.orInPlace(q.epsilonDepth); |
||||
} |
||||
} |
||||
else if (q.epsilonDepth != null) { |
||||
epsilonDepth = (BitSet)q.epsilonDepth.clone(); |
||||
} |
||||
fset.orInPlace(q.fset); |
||||
} |
||||
|
||||
public boolean containsEpsilon() { |
||||
return hasEpsilon; |
||||
} |
||||
|
||||
/** What is the intersection of two lookahead depths? |
||||
* Only the Epsilon "bit" and bitset are considered. |
||||
*/ |
||||
public Lookahead intersection(Lookahead q) { |
||||
Lookahead p = new Lookahead(fset.and(q.fset)); |
||||
if (this.hasEpsilon && q.hasEpsilon) { |
||||
p.setEpsilon(); |
||||
} |
||||
return p; |
||||
} |
||||
|
||||
public boolean nil() { |
||||
return fset.nil() && !hasEpsilon; |
||||
} |
||||
|
||||
public static Lookahead of(int el) { |
||||
Lookahead look = new Lookahead(); |
||||
look.fset.add(el); |
||||
return look; |
||||
} |
||||
|
||||
public void resetEpsilon() { |
||||
hasEpsilon = false; |
||||
} |
||||
|
||||
public void setEpsilon() { |
||||
hasEpsilon = true; |
||||
} |
||||
|
||||
public String toString() { |
||||
String e = "",b,f = "",d = ""; |
||||
b = fset.toString(","); |
||||
if (containsEpsilon()) { |
||||
e = "+<epsilon>"; |
||||
} |
||||
if (cycle != null) { |
||||
f = "; FOLLOW(" + cycle + ")"; |
||||
} |
||||
if (epsilonDepth != null) { |
||||
d = "; depths=" + epsilonDepth.toString(","); |
||||
} |
||||
return b + e + f + d; |
||||
|
||||
} |
||||
|
||||
public String toString(String separator, CharFormatter formatter) { |
||||
String e = "",b,f = "",d = ""; |
||||
b = fset.toString(separator, formatter); |
||||
if (containsEpsilon()) { |
||||
e = "+<epsilon>"; |
||||
} |
||||
if (cycle != null) { |
||||
f = "; FOLLOW(" + cycle + ")"; |
||||
} |
||||
if (epsilonDepth != null) { |
||||
d = "; depths=" + epsilonDepth.toString(","); |
||||
} |
||||
return b + e + f + d; |
||||
} |
||||
|
||||
public String toString(String separator, CharFormatter formatter, Grammar g) { |
||||
if (g instanceof LexerGrammar) { |
||||
return toString(separator, formatter); |
||||
} |
||||
else { |
||||
return toString(separator, g.tokenManager.getVocabulary()); |
||||
} |
||||
} |
||||
|
||||
public String toString(String separator, Vector vocab) { |
||||
String b,f = "",d = ""; |
||||
b = fset.toString(separator, vocab); |
||||
if (cycle != null) { |
||||
f = "; FOLLOW(" + cycle + ")"; |
||||
} |
||||
if (epsilonDepth != null) { |
||||
d = "; depths=" + epsilonDepth.toString(","); |
||||
} |
||||
return b + f + d; |
||||
} |
||||
} |
||||
@ -1,792 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/MakeGrammar.java#2 $
|
||||
*/ |
||||
|
||||
import com.fr.third.antlr.collections.Stack; |
||||
import com.fr.third.antlr.collections.impl.LList; |
||||
import com.fr.third.antlr.collections.impl.Vector; |
||||
|
||||
|
||||
public class MakeGrammar extends DefineGrammarSymbols { |
||||
|
||||
protected Stack blocks = new LList(); // track subrules--Stack<BlockContext>
|
||||
protected RuleRefElement lastRuleRef; |
||||
|
||||
protected RuleEndElement ruleEnd; // used if not nested
|
||||
protected RuleBlock ruleBlock; // points to block of current rule.
|
||||
protected int nested = 0; // nesting inside a subrule
|
||||
protected boolean grammarError = false; |
||||
|
||||
ExceptionSpec currentExceptionSpec = null; |
||||
|
||||
public MakeGrammar(Tool tool_, String[] args_, LLkAnalyzer analyzer_) { |
||||
super(tool_, args_, analyzer_); |
||||
} |
||||
|
||||
/** Abort the processing of a grammar (due to syntax errors) */ |
||||
public void abortGrammar() { |
||||
String s = "unknown grammar"; |
||||
if (grammar != null) { |
||||
s = grammar.getClassName(); |
||||
} |
||||
tool.error("aborting grammar '" + s + "' due to errors"); |
||||
super.abortGrammar(); |
||||
} |
||||
|
||||
protected void addElementToCurrentAlt(AlternativeElement e) { |
||||
e.enclosingRuleName = ruleBlock.ruleName; |
||||
context().addAlternativeElement(e); |
||||
} |
||||
|
||||
public void beginAlt(boolean doAutoGen_) { |
||||
super.beginAlt(doAutoGen_); |
||||
Alternative alt = new Alternative(); |
||||
alt.setAutoGen(doAutoGen_); |
||||
context().block.addAlternative(alt); |
||||
} |
||||
|
||||
public void beginChildList() { |
||||
super.beginChildList(); |
||||
context().block.addAlternative(new Alternative()); |
||||
} |
||||
|
||||
/** Add an exception group to a rule (currently a no-op) */ |
||||
public void beginExceptionGroup() { |
||||
super.beginExceptionGroup(); |
||||
if (!(context().block instanceof RuleBlock)) { |
||||
tool.panic("beginExceptionGroup called outside of rule block"); |
||||
} |
||||
} |
||||
|
||||
/** Add an exception spec to an exception group or rule block */ |
||||
public void beginExceptionSpec(Token label) { |
||||
// Hack the label string a bit to remove leading/trailing space.
|
||||
if (label != null) { |
||||
label.setText(StringUtils.stripFront(StringUtils.stripBack(label.getText(), " \n\r\t"), " \n\r\t")); |
||||
} |
||||
super.beginExceptionSpec(label); |
||||
// Don't check for currentExceptionSpec!=null because syntax errors
|
||||
// may leave it set to something.
|
||||
currentExceptionSpec = new ExceptionSpec(label); |
||||
} |
||||
|
||||
public void beginSubRule(Token label, Token start, boolean not) { |
||||
super.beginSubRule(label, start, not); |
||||
// we don't know what kind of subrule it is yet.
|
||||
// push a dummy one that will allow us to collect the
|
||||
// alternatives. Later, we'll switch to real object.
|
||||
blocks.push(new BlockContext()); |
||||
context().block = new AlternativeBlock(grammar, start, not); |
||||
context().altNum = 0; // reset alternative number
|
||||
nested++; |
||||
// create a final node to which the last elememt of each
|
||||
// alternative will point.
|
||||
context().blockEnd = new BlockEndElement(grammar); |
||||
// make sure end node points to start of block
|
||||
context().blockEnd.block = context().block; |
||||
labelElement(context().block, label); |
||||
} |
||||
|
||||
public void beginTree(Token tok) throws SemanticException { |
||||
if (!(grammar instanceof TreeWalkerGrammar)) { |
||||
tool.error("Trees only allowed in TreeParser", grammar.getFilename(), tok.getLine(), tok.getColumn()); |
||||
throw new SemanticException("Trees only allowed in TreeParser"); |
||||
} |
||||
super.beginTree(tok); |
||||
blocks.push(new TreeBlockContext()); |
||||
context().block = new TreeElement(grammar, tok); |
||||
context().altNum = 0; // reset alternative number
|
||||
} |
||||
|
||||
public BlockContext context() { |
||||
if (blocks.height() == 0) { |
||||
return null; |
||||
} |
||||
else { |
||||
return (BlockContext)blocks.top(); |
||||
} |
||||
} |
||||
|
||||
/**Used to build nextToken() for the lexer. |
||||
* This builds a rule which has every "public" rule in the given Vector of |
||||
* rules as it's alternate. Each rule ref generates a Token object. |
||||
* @param g The Grammar that is being processed |
||||
* @param lexRules A vector of lexer rules that will be used to create an alternate block. |
||||
* @param rname The name of the resulting rule. |
||||
*/ |
||||
public static RuleBlock createNextTokenRule(Grammar g, Vector lexRules, String rname) { |
||||
// create actual rule data structure
|
||||
RuleBlock rb = new RuleBlock(g, rname); |
||||
rb.setDefaultErrorHandler(g.getDefaultErrorHandler()); |
||||
RuleEndElement ruleEnd = new RuleEndElement(g); |
||||
rb.setEndElement(ruleEnd); |
||||
ruleEnd.block = rb; |
||||
// Add an alternative for each element of the rules vector.
|
||||
for (int i = 0; i < lexRules.size(); i++) { |
||||
RuleSymbol r = (RuleSymbol)lexRules.elementAt(i); |
||||
if (!r.isDefined()) { |
||||
g.antlrTool.error("Lexer rule " + r.id.substring(1) + " is not defined"); |
||||
} |
||||
else { |
||||
if (r.access.equals("public")) { |
||||
Alternative alt = new Alternative(); // create alt we'll add to ref rule
|
||||
RuleBlock targetRuleBlock = r.getBlock(); |
||||
Vector targetRuleAlts = targetRuleBlock.getAlternatives(); |
||||
// collect a sem pred if only one alt and it's at the start;
|
||||
// simple, but faster to implement until real hoisting
|
||||
if ( targetRuleAlts!=null && targetRuleAlts.size()==1 ) { |
||||
Alternative onlyAlt = (Alternative)targetRuleAlts.elementAt(0); |
||||
if ( onlyAlt.semPred!=null ) { |
||||
// ok, has sem pred, make this rule ref alt have a pred
|
||||
alt.semPred = onlyAlt.semPred; |
||||
// REMOVE predicate from target rule??? NOPE, another
|
||||
// rule other than nextToken() might invoke it.
|
||||
} |
||||
} |
||||
|
||||
// create a rule ref to lexer rule
|
||||
// the Token is a RULE_REF not a TOKEN_REF since the
|
||||
// conversion to mRulename has already taken place
|
||||
RuleRefElement rr = |
||||
new RuleRefElement(g, |
||||
new CommonToken(ANTLRTokenTypes.RULE_REF, r.getId()), |
||||
GrammarElement.AUTO_GEN_NONE); |
||||
rr.setLabel("theRetToken"); |
||||
rr.enclosingRuleName = "nextToken"; |
||||
rr.next = ruleEnd; |
||||
alt.addElement(rr); // add rule ref to alt
|
||||
alt.setAutoGen(true); // keep text of elements
|
||||
rb.addAlternative(alt); // add alt to rule block
|
||||
r.addReference(rr); // track ref to this rule in rule blk
|
||||
} |
||||
} |
||||
} |
||||
|
||||
rb.setAutoGen(true); // keep text of elements
|
||||
rb.prepareForAnalysis(); |
||||
//System.out.println(rb);
|
||||
return rb; |
||||
} |
||||
|
||||
/** Return block as if they had typed: "( rule )?" */ |
||||
private AlternativeBlock createOptionalRuleRef(String rule, Token start) { |
||||
// Make the subrule
|
||||
AlternativeBlock blk = new AlternativeBlock(grammar, start, false); |
||||
|
||||
// Make sure rule is defined
|
||||
String mrule = CodeGenerator.encodeLexerRuleName(rule); // can only be a lexer rule!
|
||||
if (!grammar.isDefined(mrule)) { |
||||
grammar.define(new RuleSymbol(mrule)); |
||||
} |
||||
|
||||
// Make the rule ref element
|
||||
// RK: fixme probably easier to abuse start token..
|
||||
Token t = new CommonToken(ANTLRTokenTypes.TOKEN_REF, rule); |
||||
t.setLine(start.getLine()); |
||||
t.setLine(start.getColumn()); |
||||
RuleRefElement rref = |
||||
new RuleRefElement(grammar, t, GrammarElement.AUTO_GEN_NONE); |
||||
|
||||
rref.enclosingRuleName = ruleBlock.ruleName; |
||||
|
||||
// Make the end of block element
|
||||
BlockEndElement end = new BlockEndElement(grammar); |
||||
end.block = blk; // end block points back to start of blk
|
||||
|
||||
// Make an alternative, putting the rule ref into it
|
||||
Alternative alt = new Alternative(rref); |
||||
alt.addElement(end); // last element in alt points to end of block
|
||||
|
||||
// Add the alternative to this block
|
||||
blk.addAlternative(alt); |
||||
|
||||
// create an empty (optional) alt and add to blk
|
||||
Alternative optAlt = new Alternative(); |
||||
optAlt.addElement(end); // points immediately to end of block
|
||||
|
||||
blk.addAlternative(optAlt); |
||||
|
||||
blk.prepareForAnalysis(); |
||||
return blk; |
||||
} |
||||
|
||||
public void defineRuleName(Token r, |
||||
String access, |
||||
boolean ruleAutoGen, |
||||
String docComment) |
||||
throws SemanticException { |
||||
// if ( Character.isUpperCase(r.getText().charAt(0)) ) {
|
||||
if (r.type == ANTLRTokenTypes.TOKEN_REF) { |
||||
if (!(grammar instanceof LexerGrammar)) { |
||||
tool.error("Lexical rule " + r.getText() + |
||||
" defined outside of lexer", |
||||
grammar.getFilename(), r.getLine(), r.getColumn()); |
||||
r.setText(r.getText().toLowerCase()); |
||||
} |
||||
} |
||||
else { |
||||
if (grammar instanceof LexerGrammar) { |
||||
tool.error("Lexical rule names must be upper case, '" + r.getText() + |
||||
"' is not", |
||||
grammar.getFilename(), r.getLine(), r.getColumn()); |
||||
r.setText(r.getText().toUpperCase()); |
||||
} |
||||
} |
||||
|
||||
super.defineRuleName(r, access, ruleAutoGen, docComment); |
||||
String id = r.getText(); |
||||
// if ( Character.isUpperCase(id.charAt(0)) ) { // lexer rule?
|
||||
if (r.type == ANTLRTokenTypes.TOKEN_REF) { // lexer rule?
|
||||
id = CodeGenerator.encodeLexerRuleName(id); |
||||
} |
||||
RuleSymbol rs = (RuleSymbol)grammar.getSymbol(id); |
||||
RuleBlock rb = new RuleBlock(grammar, r.getText(), r.getLine(), ruleAutoGen); |
||||
|
||||
// Lexer rules do not generate default error handling
|
||||
rb.setDefaultErrorHandler(grammar.getDefaultErrorHandler()); |
||||
|
||||
ruleBlock = rb; |
||||
blocks.push(new BlockContext()); // enter new context
|
||||
context().block = rb; |
||||
rs.setBlock(rb); |
||||
ruleEnd = new RuleEndElement(grammar); |
||||
rb.setEndElement(ruleEnd); |
||||
nested = 0; |
||||
} |
||||
|
||||
public void endAlt() { |
||||
super.endAlt(); |
||||
if (nested == 0) { // all rule-level alts link to ruleEnd node
|
||||
addElementToCurrentAlt(ruleEnd); |
||||
} |
||||
else { |
||||
addElementToCurrentAlt(context().blockEnd); |
||||
} |
||||
context().altNum++; |
||||
} |
||||
|
||||
public void endChildList() { |
||||
super.endChildList(); |
||||
// create a final node to which the last elememt of the single
|
||||
// alternative will point. Done for compatibility with analyzer.
|
||||
// Does NOT point to any block like alternative blocks because the
|
||||
// TreeElement is not a block. This is used only as a placeholder.
|
||||
BlockEndElement be = new BlockEndElement(grammar); |
||||
be.block = context().block; |
||||
addElementToCurrentAlt(be); |
||||
} |
||||
|
||||
public void endExceptionGroup() { |
||||
super.endExceptionGroup(); |
||||
} |
||||
|
||||
public void endExceptionSpec() { |
||||
super.endExceptionSpec(); |
||||
if (currentExceptionSpec == null) { |
||||
tool.panic("exception processing internal error -- no active exception spec"); |
||||
} |
||||
if (context().block instanceof RuleBlock) { |
||||
// Named rule
|
||||
((RuleBlock)context().block).addExceptionSpec(currentExceptionSpec); |
||||
} |
||||
else { |
||||
// It must be a plain-old alternative block
|
||||
if (context().currentAlt().exceptionSpec != null) { |
||||
tool.error("Alternative already has an exception specification", grammar.getFilename(), context().block.getLine(), context().block.getColumn()); |
||||
} |
||||
else { |
||||
context().currentAlt().exceptionSpec = currentExceptionSpec; |
||||
} |
||||
} |
||||
currentExceptionSpec = null; |
||||
} |
||||
|
||||
/** Called at the end of processing a grammar */ |
||||
public void endGrammar() { |
||||
if (grammarError) { |
||||
abortGrammar(); |
||||
} |
||||
else { |
||||
super.endGrammar(); |
||||
} |
||||
} |
||||
|
||||
public void endRule(String rule) { |
||||
super.endRule(rule); |
||||
BlockContext ctx = (BlockContext)blocks.pop(); // remove scope
|
||||
// record the start of this block in the ending node
|
||||
ruleEnd.block = ctx.block; |
||||
ruleEnd.block.prepareForAnalysis(); |
||||
//System.out.println(ctx.block);
|
||||
} |
||||
|
||||
public void endSubRule() { |
||||
super.endSubRule(); |
||||
nested--; |
||||
// remove subrule context from scope stack
|
||||
BlockContext ctx = (BlockContext)blocks.pop(); |
||||
AlternativeBlock block = ctx.block; |
||||
|
||||
// If the subrule is marked with ~, check that it is
|
||||
// a valid candidate for analysis
|
||||
if ( |
||||
block.not && |
||||
!(block instanceof SynPredBlock) && |
||||
!(block instanceof ZeroOrMoreBlock) && |
||||
!(block instanceof OneOrMoreBlock) |
||||
) { |
||||
if (!analyzer.subruleCanBeInverted(block, grammar instanceof LexerGrammar)) { |
||||
String newline = System.getProperty("line.separator"); |
||||
tool.error( |
||||
"This subrule cannot be inverted. Only subrules of the form:" + newline + |
||||
" (T1|T2|T3...) or" + newline + |
||||
" ('c1'|'c2'|'c3'...)" + newline + |
||||
"may be inverted (ranges are also allowed).", |
||||
grammar.getFilename(), |
||||
block.getLine(), block.getColumn() |
||||
); |
||||
} |
||||
} |
||||
|
||||
// add the subrule as element if not a syn pred
|
||||
if (block instanceof SynPredBlock) { |
||||
// record a reference to the recently-recognized syn pred in the
|
||||
// enclosing block.
|
||||
SynPredBlock synpred = (SynPredBlock)block; |
||||
context().block.hasASynPred = true; |
||||
context().currentAlt().synPred = synpred; |
||||
grammar.hasSyntacticPredicate = true; |
||||
synpred.removeTrackingOfRuleRefs(grammar); |
||||
} |
||||
else { |
||||
addElementToCurrentAlt(block); |
||||
} |
||||
ctx.blockEnd.block.prepareForAnalysis(); |
||||
} |
||||
|
||||
public void endTree() { |
||||
super.endTree(); |
||||
BlockContext ctx = (BlockContext)blocks.pop(); |
||||
addElementToCurrentAlt(ctx.block); // add new TreeElement to enclosing alt.
|
||||
} |
||||
|
||||
/** Remember that a major error occured in the grammar */ |
||||
public void hasError() { |
||||
grammarError = true; |
||||
} |
||||
|
||||
private void labelElement(AlternativeElement el, Token label) { |
||||
if (label != null) { |
||||
// Does this label already exist?
|
||||
for (int i = 0; i < ruleBlock.labeledElements.size(); i++) { |
||||
AlternativeElement altEl = (AlternativeElement)ruleBlock.labeledElements.elementAt(i); |
||||
String l = altEl.getLabel(); |
||||
if (l != null && l.equals(label.getText())) { |
||||
tool.error("Label '" + label.getText() + "' has already been defined", grammar.getFilename(), label.getLine(), label.getColumn()); |
||||
return; |
||||
} |
||||
} |
||||
// add this node to the list of labeled elements
|
||||
el.setLabel(label.getText()); |
||||
ruleBlock.labeledElements.appendElement(el); |
||||
} |
||||
} |
||||
|
||||
public void noAutoGenSubRule() { |
||||
context().block.setAutoGen(false); |
||||
} |
||||
|
||||
public void oneOrMoreSubRule() { |
||||
if (context().block.not) { |
||||
tool.error("'~' cannot be applied to (...)* subrule", grammar.getFilename(), context().block.getLine(), context().block.getColumn()); |
||||
} |
||||
// create the right kind of object now that we know what that is
|
||||
// and switch the list of alternatives. Adjust the stack of blocks.
|
||||
// copy any init action also.
|
||||
OneOrMoreBlock b = new OneOrMoreBlock(grammar); |
||||
setBlock(b, context().block); |
||||
BlockContext old = (BlockContext)blocks.pop(); // remove old scope; we want new type of subrule
|
||||
blocks.push(new BlockContext()); |
||||
context().block = b; |
||||
context().blockEnd = old.blockEnd; |
||||
context().blockEnd.block = b; |
||||
} |
||||
|
||||
public void optionalSubRule() { |
||||
if (context().block.not) { |
||||
tool.error("'~' cannot be applied to (...)? subrule", grammar.getFilename(), context().block.getLine(), context().block.getColumn()); |
||||
} |
||||
// convert (X)? -> (X|) so that we can ignore optional blocks altogether!
|
||||
// It already thinks that we have a simple subrule, just add option block.
|
||||
beginAlt(false); |
||||
endAlt(); |
||||
} |
||||
|
||||
public void refAction(Token action) { |
||||
super.refAction(action); |
||||
context().block.hasAnAction = true; |
||||
addElementToCurrentAlt(new ActionElement(grammar, action)); |
||||
} |
||||
|
||||
public void setUserExceptions(String thr) { |
||||
((RuleBlock)context().block).throwsSpec = thr; |
||||
} |
||||
|
||||
// Only called for rule blocks
|
||||
public void refArgAction(Token action) { |
||||
((RuleBlock)context().block).argAction = action.getText(); |
||||
} |
||||
|
||||
public void refCharLiteral(Token lit, Token label, boolean inverted, int autoGenType, boolean lastInRule) { |
||||
if (!(grammar instanceof LexerGrammar)) { |
||||
tool.error("Character literal only valid in lexer", grammar.getFilename(), lit.getLine(), lit.getColumn()); |
||||
return; |
||||
} |
||||
super.refCharLiteral(lit, label, inverted, autoGenType, lastInRule); |
||||
CharLiteralElement cl = new CharLiteralElement((LexerGrammar)grammar, lit, inverted, autoGenType); |
||||
|
||||
// Generate a warning for non-lowercase ASCII when case-insensitive
|
||||
if ( |
||||
!((LexerGrammar)grammar).caseSensitive && cl.getType() < 128 && |
||||
Character.toLowerCase((char)cl.getType()) != (char)cl.getType() |
||||
) { |
||||
tool.warning("Character literal must be lowercase when caseSensitive=false", grammar.getFilename(), lit.getLine(), lit.getColumn()); |
||||
} |
||||
|
||||
addElementToCurrentAlt(cl); |
||||
labelElement(cl, label); |
||||
|
||||
// if ignore option is set, must add an optional call to the specified rule.
|
||||
String ignore = ruleBlock.getIgnoreRule(); |
||||
if (!lastInRule && ignore != null) { |
||||
addElementToCurrentAlt(createOptionalRuleRef(ignore, lit)); |
||||
} |
||||
} |
||||
|
||||
public void refCharRange(Token t1, Token t2, Token label, int autoGenType, boolean lastInRule) { |
||||
if (!(grammar instanceof LexerGrammar)) { |
||||
tool.error("Character range only valid in lexer", grammar.getFilename(), t1.getLine(), t1.getColumn()); |
||||
return; |
||||
} |
||||
int rangeMin = ANTLRLexer.tokenTypeForCharLiteral(t1.getText()); |
||||
int rangeMax = ANTLRLexer.tokenTypeForCharLiteral(t2.getText()); |
||||
if (rangeMax < rangeMin) { |
||||
tool.error("Malformed range.", grammar.getFilename(), t1.getLine(), t1.getColumn()); |
||||
return; |
||||
} |
||||
|
||||
// Generate a warning for non-lowercase ASCII when case-insensitive
|
||||
if (!((LexerGrammar)grammar).caseSensitive) { |
||||
if (rangeMin < 128 && Character.toLowerCase((char)rangeMin) != (char)rangeMin) { |
||||
tool.warning("Character literal must be lowercase when caseSensitive=false", grammar.getFilename(), t1.getLine(), t1.getColumn()); |
||||
} |
||||
if (rangeMax < 128 && Character.toLowerCase((char)rangeMax) != (char)rangeMax) { |
||||
tool.warning("Character literal must be lowercase when caseSensitive=false", grammar.getFilename(), t2.getLine(), t2.getColumn()); |
||||
} |
||||
} |
||||
|
||||
super.refCharRange(t1, t2, label, autoGenType, lastInRule); |
||||
CharRangeElement cr = new CharRangeElement((LexerGrammar)grammar, t1, t2, autoGenType); |
||||
addElementToCurrentAlt(cr); |
||||
labelElement(cr, label); |
||||
|
||||
// if ignore option is set, must add an optional call to the specified rule.
|
||||
String ignore = ruleBlock.getIgnoreRule(); |
||||
if (!lastInRule && ignore != null) { |
||||
addElementToCurrentAlt(createOptionalRuleRef(ignore, t1)); |
||||
} |
||||
} |
||||
|
||||
public void refTokensSpecElementOption(Token tok, |
||||
Token option, |
||||
Token value) { |
||||
/* |
||||
System.out.println("setting tokens spec option for "+tok.getText()); |
||||
System.out.println(option.getText()+","+value.getText()); |
||||
*/ |
||||
TokenSymbol ts = (TokenSymbol) |
||||
grammar.tokenManager.getTokenSymbol(tok.getText()); |
||||
if (ts == null) { |
||||
tool.panic("cannot find " + tok.getText() + "in tokens {...}"); |
||||
} |
||||
if (option.getText().equals("AST")) { |
||||
ts.setASTNodeType(value.getText()); |
||||
} |
||||
else { |
||||
grammar.antlrTool.error("invalid tokens {...} element option:" + |
||||
option.getText(), |
||||
grammar.getFilename(), |
||||
option.getLine(), option.getColumn()); |
||||
} |
||||
} |
||||
|
||||
public void refElementOption(Token option, Token value) { |
||||
/* |
||||
System.out.println("setting option for "+context().currentElement()); |
||||
System.out.println(option.getText()+","+value.getText()); |
||||
*/ |
||||
AlternativeElement e = context().currentElement(); |
||||
if (e instanceof StringLiteralElement || |
||||
e instanceof TokenRefElement || |
||||
e instanceof WildcardElement) { |
||||
((GrammarAtom)e).setOption(option, value); |
||||
} |
||||
else { |
||||
tool.error("cannot use element option (" + option.getText() + |
||||
") for this kind of element", |
||||
grammar.getFilename(), option.getLine(), option.getColumn()); |
||||
} |
||||
} |
||||
|
||||
/** Add an exception handler to an exception spec */ |
||||
public void refExceptionHandler(Token exTypeAndName, Token action) { |
||||
super.refExceptionHandler(exTypeAndName, action); |
||||
if (currentExceptionSpec == null) { |
||||
tool.panic("exception handler processing internal error"); |
||||
} |
||||
currentExceptionSpec.addHandler(new ExceptionHandler(exTypeAndName, action)); |
||||
} |
||||
|
||||
public void refInitAction(Token action) { |
||||
super.refAction(action); |
||||
context().block.setInitAction(action.getText()); |
||||
} |
||||
|
||||
public void refMemberAction(Token act) { |
||||
grammar.classMemberAction = act; |
||||
} |
||||
|
||||
public void refPreambleAction(Token act) { |
||||
super.refPreambleAction(act); |
||||
} |
||||
|
||||
// Only called for rule blocks
|
||||
public void refReturnAction(Token returnAction) { |
||||
if (grammar instanceof LexerGrammar) { |
||||
String name = CodeGenerator.encodeLexerRuleName(((RuleBlock)context().block).getRuleName()); |
||||
RuleSymbol rs = (RuleSymbol)grammar.getSymbol(name); |
||||
if (rs.access.equals("public")) { |
||||
tool.warning("public Lexical rules cannot specify return type", grammar.getFilename(), returnAction.getLine(), returnAction.getColumn()); |
||||
return; |
||||
} |
||||
} |
||||
((RuleBlock)context().block).returnAction = returnAction.getText(); |
||||
} |
||||
|
||||
public void refRule(Token idAssign, |
||||
Token r, |
||||
Token label, |
||||
Token args, |
||||
int autoGenType) { |
||||
// Disallow parser rule references in the lexer
|
||||
if (grammar instanceof LexerGrammar) { |
||||
// if (!Character.isUpperCase(r.getText().charAt(0))) {
|
||||
if (r.type != ANTLRTokenTypes.TOKEN_REF) { |
||||
tool.error("Parser rule " + r.getText() + " referenced in lexer"); |
||||
return; |
||||
} |
||||
if (autoGenType == GrammarElement.AUTO_GEN_CARET) { |
||||
tool.error("AST specification ^ not allowed in lexer", grammar.getFilename(), r.getLine(), r.getColumn()); |
||||
} |
||||
} |
||||
|
||||
super.refRule(idAssign, r, label, args, autoGenType); |
||||
lastRuleRef = new RuleRefElement(grammar, r, autoGenType); |
||||
if (args != null) { |
||||
lastRuleRef.setArgs(args.getText()); |
||||
} |
||||
if (idAssign != null) { |
||||
lastRuleRef.setIdAssign(idAssign.getText()); |
||||
} |
||||
addElementToCurrentAlt(lastRuleRef); |
||||
|
||||
String id = r.getText(); |
||||
// if ( Character.isUpperCase(id.charAt(0)) ) { // lexer rule?
|
||||
if (r.type == ANTLRTokenTypes.TOKEN_REF) { // lexer rule?
|
||||
id = CodeGenerator.encodeLexerRuleName(id); |
||||
} |
||||
// update symbol table so it knows what nodes reference the rule.
|
||||
RuleSymbol rs = (RuleSymbol)grammar.getSymbol(id); |
||||
rs.addReference(lastRuleRef); |
||||
labelElement(lastRuleRef, label); |
||||
} |
||||
|
||||
public void refSemPred(Token pred) { |
||||
//System.out.println("refSemPred "+pred.getText());
|
||||
super.refSemPred(pred); |
||||
//System.out.println("context().block: "+context().block);
|
||||
if (context().currentAlt().atStart()) { |
||||
context().currentAlt().semPred = pred.getText(); |
||||
} |
||||
else { |
||||
ActionElement a = new ActionElement(grammar, pred); |
||||
a.isSemPred = true; |
||||
addElementToCurrentAlt(a); |
||||
} |
||||
//System.out.println("DONE refSemPred "+pred.getText());
|
||||
} |
||||
|
||||
public void refStringLiteral(Token lit, Token label, int autoGenType, boolean lastInRule) { |
||||
super.refStringLiteral(lit, label, autoGenType, lastInRule); |
||||
if (grammar instanceof TreeWalkerGrammar && autoGenType == GrammarElement.AUTO_GEN_CARET) { |
||||
tool.error("^ not allowed in here for tree-walker", grammar.getFilename(), lit.getLine(), lit.getColumn()); |
||||
} |
||||
StringLiteralElement sl = new StringLiteralElement(grammar, lit, autoGenType); |
||||
|
||||
// If case-insensitive, then check each char of the stirng literal
|
||||
if (grammar instanceof LexerGrammar && !((LexerGrammar)grammar).caseSensitive) { |
||||
for (int i = 1; i < lit.getText().length() - 1; i++) { |
||||
char c = lit.getText().charAt(i); |
||||
if (c < 128 && Character.toLowerCase(c) != c) { |
||||
tool.warning("Characters of string literal must be lowercase when caseSensitive=false", grammar.getFilename(), lit.getLine(), lit.getColumn()); |
||||
break; |
||||
} |
||||
} |
||||
} |
||||
|
||||
addElementToCurrentAlt(sl); |
||||
labelElement(sl, label); |
||||
|
||||
// if ignore option is set, must add an optional call to the specified rule.
|
||||
String ignore = ruleBlock.getIgnoreRule(); |
||||
if (!lastInRule && ignore != null) { |
||||
addElementToCurrentAlt(createOptionalRuleRef(ignore, lit)); |
||||
} |
||||
} |
||||
|
||||
public void refToken(Token idAssign, Token t, Token label, Token args, |
||||
boolean inverted, int autoGenType, boolean lastInRule) { |
||||
if (grammar instanceof LexerGrammar) { |
||||
// In lexer, token references are really rule references
|
||||
if (autoGenType == GrammarElement.AUTO_GEN_CARET) { |
||||
tool.error("AST specification ^ not allowed in lexer", grammar.getFilename(), t.getLine(), t.getColumn()); |
||||
} |
||||
if (inverted) { |
||||
tool.error("~TOKEN is not allowed in lexer", grammar.getFilename(), t.getLine(), t.getColumn()); |
||||
} |
||||
refRule(idAssign, t, label, args, autoGenType); |
||||
|
||||
// if ignore option is set, must add an optional call to the specified token rule.
|
||||
String ignore = ruleBlock.getIgnoreRule(); |
||||
if (!lastInRule && ignore != null) { |
||||
addElementToCurrentAlt(createOptionalRuleRef(ignore, t)); |
||||
} |
||||
} |
||||
else { |
||||
// Cannot have token ref args or assignment outside of lexer
|
||||
if (idAssign != null) { |
||||
tool.error("Assignment from token reference only allowed in lexer", grammar.getFilename(), idAssign.getLine(), idAssign.getColumn()); |
||||
} |
||||
if (args != null) { |
||||
tool.error("Token reference arguments only allowed in lexer", grammar.getFilename(), args.getLine(), args.getColumn()); |
||||
} |
||||
super.refToken(idAssign, t, label, args, inverted, autoGenType, lastInRule); |
||||
TokenRefElement te = new TokenRefElement(grammar, t, inverted, autoGenType); |
||||
addElementToCurrentAlt(te); |
||||
labelElement(te, label); |
||||
} |
||||
} |
||||
|
||||
public void refTokenRange(Token t1, Token t2, Token label, int autoGenType, boolean lastInRule) { |
||||
if (grammar instanceof LexerGrammar) { |
||||
tool.error("Token range not allowed in lexer", grammar.getFilename(), t1.getLine(), t1.getColumn()); |
||||
return; |
||||
} |
||||
super.refTokenRange(t1, t2, label, autoGenType, lastInRule); |
||||
TokenRangeElement tr = new TokenRangeElement(grammar, t1, t2, autoGenType); |
||||
if (tr.end < tr.begin) { |
||||
tool.error("Malformed range.", grammar.getFilename(), t1.getLine(), t1.getColumn()); |
||||
return; |
||||
} |
||||
addElementToCurrentAlt(tr); |
||||
labelElement(tr, label); |
||||
} |
||||
|
||||
public void refTreeSpecifier(Token treeSpec) { |
||||
context().currentAlt().treeSpecifier = treeSpec; |
||||
} |
||||
|
||||
public void refWildcard(Token t, Token label, int autoGenType) { |
||||
super.refWildcard(t, label, autoGenType); |
||||
WildcardElement wc = new WildcardElement(grammar, t, autoGenType); |
||||
addElementToCurrentAlt(wc); |
||||
labelElement(wc, label); |
||||
} |
||||
|
||||
/** Get ready to process a new grammar */ |
||||
public void reset() { |
||||
super.reset(); |
||||
blocks = new LList(); |
||||
lastRuleRef = null; |
||||
ruleEnd = null; |
||||
ruleBlock = null; |
||||
nested = 0; |
||||
currentExceptionSpec = null; |
||||
grammarError = false; |
||||
} |
||||
|
||||
public void setArgOfRuleRef(Token argAction) { |
||||
super.setArgOfRuleRef(argAction); |
||||
lastRuleRef.setArgs(argAction.getText()); |
||||
} |
||||
|
||||
public static void setBlock(AlternativeBlock b, AlternativeBlock src) { |
||||
b.setAlternatives(src.getAlternatives()); |
||||
b.initAction = src.initAction; |
||||
//b.lookaheadDepth = src.lookaheadDepth;
|
||||
b.label = src.label; |
||||
b.hasASynPred = src.hasASynPred; |
||||
b.hasAnAction = src.hasAnAction; |
||||
b.warnWhenFollowAmbig = src.warnWhenFollowAmbig; |
||||
b.generateAmbigWarnings = src.generateAmbigWarnings; |
||||
b.line = src.line; |
||||
b.greedy = src.greedy; |
||||
b.greedySet = src.greedySet; |
||||
} |
||||
|
||||
public void setRuleOption(Token key, Token value) { |
||||
//((RuleBlock)context().block).setOption(key, value);
|
||||
ruleBlock.setOption(key, value); |
||||
} |
||||
|
||||
public void setSubruleOption(Token key, Token value) { |
||||
((AlternativeBlock)context().block).setOption(key, value); |
||||
} |
||||
|
||||
public void synPred() { |
||||
if (context().block.not) { |
||||
tool.error("'~' cannot be applied to syntactic predicate", grammar.getFilename(), context().block.getLine(), context().block.getColumn()); |
||||
} |
||||
// create the right kind of object now that we know what that is
|
||||
// and switch the list of alternatives. Adjust the stack of blocks.
|
||||
// copy any init action also.
|
||||
SynPredBlock b = new SynPredBlock(grammar); |
||||
setBlock(b, context().block); |
||||
BlockContext old = (BlockContext)blocks.pop(); // remove old scope; we want new type of subrule
|
||||
blocks.push(new BlockContext()); |
||||
context().block = b; |
||||
context().blockEnd = old.blockEnd; |
||||
context().blockEnd.block = b; |
||||
} |
||||
|
||||
public void zeroOrMoreSubRule() { |
||||
if (context().block.not) { |
||||
tool.error("'~' cannot be applied to (...)+ subrule", grammar.getFilename(), context().block.getLine(), context().block.getColumn()); |
||||
} |
||||
// create the right kind of object now that we know what that is
|
||||
// and switch the list of alternatives. Adjust the stack of blocks.
|
||||
// copy any init action also.
|
||||
ZeroOrMoreBlock b = new ZeroOrMoreBlock(grammar); |
||||
setBlock(b, context().block); |
||||
BlockContext old = (BlockContext)blocks.pop(); // remove old scope; we want new type of subrule
|
||||
blocks.push(new BlockContext()); |
||||
context().block = b; |
||||
context().blockEnd = old.blockEnd; |
||||
context().blockEnd.block = b; |
||||
} |
||||
} |
||||
@ -1,146 +0,0 @@
|
||||
package com.fr.third.antlr; |
||||
|
||||
/* ANTLR Translator Generator |
||||
* Project led by Terence Parr at http://www.cs.usfca.edu
|
||||
* Software rights: http://www.antlr.org/license.html
|
||||
* |
||||
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/MismatchedCharException.java#2 $
|
||||
*/ |
||||
|
||||
import com.fr.third.antlr.collections.impl.BitSet; |
||||
|
||||
public class MismatchedCharException extends RecognitionException { |
||||
// Types of chars
|
||||
public static final int CHAR = 1; |
||||
public static final int NOT_CHAR = 2; |
||||
public static final int RANGE = 3; |
||||
public static final int NOT_RANGE = 4; |
||||
public static final int SET = 5; |
||||
public static final int NOT_SET = 6; |
||||
|
||||
// One of the above
|
||||
public int mismatchType; |
||||
|
||||
// what was found on the input stream
|
||||
public int foundChar; |
||||
|
||||
// For CHAR/NOT_CHAR and RANGE/NOT_RANGE
|
||||
public int expecting; |
||||
|
||||
// For RANGE/NOT_RANGE (expecting is lower bound of range)
|
||||
public int upper; |
||||
|
||||
// For SET/NOT_SET
|
||||
public BitSet set; |
||||
|
||||
// who knows...they may want to ask scanner questions
|
||||
public CharScanner scanner; |
||||
|
||||
/** |
||||
* MismatchedCharException constructor comment. |
||||
*/ |
||||
public MismatchedCharException() { |
||||
super("Mismatched char"); |
||||
} |
||||
|
||||
// Expected range / not range
|
||||
public MismatchedCharException(char c, char lower, char upper_, boolean matchNot, CharScanner scanner_) { |
||||
super("Mismatched char", scanner_.getFilename(), scanner_.getLine(), scanner_.getColumn()); |
||||
mismatchType = matchNot ? NOT_RANGE : RANGE; |
||||
foundChar = c; |
||||
expecting = lower; |
||||
upper = upper_; |
||||
scanner = scanner_; |
||||
} |
||||
|
||||
// Expected token / not token
|
||||
public MismatchedCharException(char c, char expecting_, boolean matchNot, CharScanner scanner_) { |
||||
super("Mismatched char", scanner_.getFilename(), scanner_.getLine(), scanner_.getColumn()); |
||||
mismatchType = matchNot ? NOT_CHAR : CHAR; |
||||
foundChar = c; |
||||
expecting = expecting_; |
||||
scanner = scanner_; |
||||
} |
||||
|
||||
// Expected BitSet / not BitSet
|
||||
public MismatchedCharException(char c, BitSet set_, boolean matchNot, CharScanner scanner_) { |
||||
super("Mismatched char", scanner_.getFilename(), scanner_.getLine(), scanner_.getColumn()); |
||||
mismatchType = matchNot ? NOT_SET : SET; |
||||
foundChar = c; |
||||
set = set_; |
||||
scanner = scanner_; |
||||
} |
||||
|
||||
/** |
||||
* Returns a clean error message (no line number/column information) |
||||
*/ |
||||
public String getMessage() { |
||||
StringBuffer sb = new StringBuffer(); |
||||
|
||||
switch (mismatchType) { |
||||
case CHAR: |
||||
sb.append("expecting "); appendCharName(sb, expecting); |
||||
sb.append(", found "); appendCharName(sb, foundChar); |
||||
break; |
||||
case NOT_CHAR: |
||||
sb.append("expecting anything but '"); |
||||
appendCharName(sb, expecting); |
||||
sb.append("'; got it anyway"); |
||||
break; |
||||
case RANGE: |
||||
case NOT_RANGE: |
||||
sb.append("expecting token "); |
||||
if (mismatchType == NOT_RANGE) |
||||
sb.append("NOT "); |
||||
sb.append("in range: "); |
||||
appendCharName(sb, expecting); |
||||
sb.append(".."); |
||||
appendCharName(sb, upper); |
||||
sb.append(", found "); |
||||
appendCharName(sb, foundChar); |
||||
break; |
||||
case SET: |
||||
case NOT_SET: |
||||
sb.append("expecting " + (mismatchType == NOT_SET ? "NOT " : "") + "one of ("); |
||||
int[] elems = set.toArray(); |
||||
for (int i = 0; i < elems.length; i++) { |
||||
appendCharName(sb, elems[i]); |
||||
} |
||||
sb.append("), found "); |
||||
appendCharName(sb, foundChar); |
||||
break; |
||||
default : |
||||
sb.append(super.getMessage()); |
||||
break; |
||||
} |
||||
|
||||
return sb.toString(); |
||||
} |
||||
|
||||
/** Append a char to the msg buffer. If special, |
||||
* then show escaped version |
||||
*/ |
||||
private void appendCharName(StringBuffer sb, int c) { |
||||
switch (c) { |
||||
case 65535 : |
||||
// 65535 = (char) -1 = EOF
|
||||
sb.append("'<EOF>'"); |
||||
break; |
||||
case '\n' : |
||||
sb.append("'\\n'"); |
||||
break; |
||||
case '\r' : |
||||
sb.append("'\\r'"); |
||||
break; |
||||
case '\t' : |
||||
sb.append("'\\t'"); |
||||
break; |
||||
default : |
||||
sb.append('\''); |
||||
sb.append((char) c); |
||||
sb.append('\''); |
||||
break; |
||||
} |
||||
} |
||||
} |
||||
|
||||
Some files were not shown because too many files have changed in this diff Show More
Loading…
Reference in new issue