aboutsummaryrefslogtreecommitdiffstats
path: root/src/java/com/sun/gluegen/cgram/StdCParser.g
diff options
context:
space:
mode:
Diffstat (limited to 'src/java/com/sun/gluegen/cgram/StdCParser.g')
-rw-r--r--src/java/com/sun/gluegen/cgram/StdCParser.g1375
1 files changed, 0 insertions, 1375 deletions
diff --git a/src/java/com/sun/gluegen/cgram/StdCParser.g b/src/java/com/sun/gluegen/cgram/StdCParser.g
deleted file mode 100644
index e84fbfd..0000000
--- a/src/java/com/sun/gluegen/cgram/StdCParser.g
+++ /dev/null
@@ -1,1375 +0,0 @@
-/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
- Copyright (c) Non, Inc. 1997 -- All Rights Reserved
-
-PROJECT: C Compiler
-MODULE: Parser
-FILE: stdc.g
-
-AUTHOR: John D. Mitchell ([email protected]), Jul 12, 1997
-
-REVISION HISTORY:
-
- Name Date Description
- ---- ---- -----------
- JDM 97.07.12 Initial version.
- JTC 97.11.18 Declaration vs declarator & misc. hacking.
- JDM 97.11.20 Fixed: declaration vs funcDef,
- parenthesized expressions,
- declarator iteration,
- varargs recognition,
- empty source file recognition,
- and some typos.
-
-
-DESCRIPTION:
-
- This grammar supports the Standard C language.
-
- Note clearly that this grammar does *NOT* deal with
- preprocessor functionality (including things like trigraphs)
- Nor does this grammar deal with multi-byte characters nor strings
- containing multi-byte characters [these constructs are "exercises
- for the reader" as it were :-)].
-
- Please refer to the ISO/ANSI C Language Standard if you believe
- this grammar to be in error. Please cite chapter and verse in any
- correspondence to the author to back up your claim.
-
-TODO:
-
- - typedefName is commented out, needs a symbol table to resolve
- ambiguity.
-
- - trees
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
-
-
-header {
- package com.sun.gluegen.cgram;
-
- import java.io.*;
-
- import antlr.CommonAST;
- import antlr.DumpASTVisitor;
-}
-
-
-class StdCParser extends Parser;
-
-options
- {
- k = 2;
- exportVocab = STDC;
- buildAST = true;
- ASTLabelType = "TNode";
-
- // Copied following options from java grammar.
- codeGenMakeSwitchThreshold = 2;
- codeGenBitsetTestThreshold = 3;
- }
-
-
-{
- // Suppport C++-style single-line comments?
- public static boolean CPPComments = true;
-
- // access to symbol table
- public CSymbolTable symbolTable = new CSymbolTable();
-
- // source for names to unnamed scopes
- protected int unnamedScopeCounter = 0;
-
- public boolean isTypedefName(String name) {
- boolean returnValue = false;
- TNode node = symbolTable.lookupNameInCurrentScope(name);
- for (; node != null; node = (TNode) node.getNextSibling() ) {
- if(node.getType() == LITERAL_typedef) {
- returnValue = true;
- break;
- }
- }
- return returnValue;
- }
-
-
- public String getAScopeName() {
- return "" + (unnamedScopeCounter++);
- }
-
- public void pushScope(String scopeName) {
- symbolTable.pushScope(scopeName);
- }
-
- public void popScope() {
- symbolTable.popScope();
- }
-
- int traceDepth = 0;
- public void reportError(RecognitionException ex) {
- try {
- System.err.println("ANTLR Parsing Error: "+ex + " token name:" + tokenNames[LA(1)]);
- ex.printStackTrace(System.err);
- }
- catch (TokenStreamException e) {
- System.err.println("ANTLR Parsing Error: "+ex);
- ex.printStackTrace(System.err);
- }
- }
- public void reportError(String s) {
- System.err.println("ANTLR Parsing Error from String: " + s);
- }
- public void reportWarning(String s) {
- System.err.println("ANTLR Parsing Warning from String: " + s);
- }
- public void match(int t) throws MismatchedTokenException {
- boolean debugging = false;
-
- if ( debugging ) {
- for (int x=0; x<traceDepth; x++) System.out.print(" ");
- try {
- System.out.println("Match("+tokenNames[t]+") with LA(1)="+
- tokenNames[LA(1)] + ((inputState.guessing>0)?" [inputState.guessing "+ inputState.guessing + "]":""));
- }
- catch (TokenStreamException e) {
- System.out.println("Match("+tokenNames[t]+") " + ((inputState.guessing>0)?" [inputState.guessing "+ inputState.guessing + "]":""));
-
- }
-
- }
- try {
- if ( LA(1)!=t ) {
- if ( debugging ){
- for (int x=0; x<traceDepth; x++) System.out.print(" ");
- System.out.println("token mismatch: "+tokenNames[LA(1)]
- + "!="+tokenNames[t]);
- }
- throw new MismatchedTokenException(tokenNames, LT(1), t, false, getFilename());
-
- } else {
- // mark token as consumed -- fetch next token deferred until LA/LT
- consume();
- }
- }
- catch (TokenStreamException e) {
- }
-
- }
- public void traceIn(String rname) {
- traceDepth += 1;
- for (int x=0; x<traceDepth; x++) System.out.print(" ");
- try {
- System.out.println("> "+rname+"; LA(1)==("+ tokenNames[LT(1).getType()]
- + ") " + LT(1).getText() + " [inputState.guessing "+ inputState.guessing + "]");
- }
- catch (TokenStreamException e) {
- }
- }
- public void traceOut(String rname) {
- for (int x=0; x<traceDepth; x++) System.out.print(" ");
- try {
- System.out.println("< "+rname+"; LA(1)==("+ tokenNames[LT(1).getType()]
- + ") "+LT(1).getText() + " [inputState.guessing "+ inputState.guessing + "]");
- }
- catch (TokenStreamException e) {
- }
- traceDepth -= 1;
- }
-
-}
-
-
-
-translationUnit
- : externalList
-
- | /* Empty source files are *not* allowed. */
- {
- System.err.println ( "Empty source file!" );
- }
- ;
-
-
-externalList
- : ( externalDef )+
- ;
-
-
-externalDef
- : ( "typedef" | declaration )=> declaration
- | functionDef
- | asm_expr
- ;
-
-
-asm_expr
- : "asm"^
- ("volatile")? LCURLY! expr RCURLY! SEMI!
- ;
-
-
-declaration
- { AST ds1 = null; }
- : ds:declSpecifiers { ds1 = astFactory.dupList(#ds); }
- (
- initDeclList[ds1]
- )?
- SEMI!
- { ## = #( #[NDeclaration], ##); }
-
- ;
-
-
-declSpecifiers
- { int specCount=0; }
- : ( options { // this loop properly aborts when
- // it finds a non-typedefName ID MBZ
- warnWhenFollowAmbig = false;
- } :
- s:storageClassSpecifier
- | typeQualifier
- | ( "struct" | "union" | "enum" | typeSpecifier[specCount] )=>
- specCount = typeSpecifier[specCount]
- )+
- ;
-
-storageClassSpecifier
- : "auto"
- | "register"
- | "typedef"
- | functionStorageClassSpecifier
- ;
-
-
-functionStorageClassSpecifier
- : "extern"
- | "static"
- ;
-
-
-typeQualifier
- : "const"
- | "volatile"
- ;
-
-typeSpecifier [int specCount] returns [int retSpecCount]
- { retSpecCount = specCount + 1; }
- :
- ( "void"
- | "char"
- | "short"
- | "int"
- | "long"
- | "float"
- | "double"
- | "signed"
- | "unsigned"
- | structOrUnionSpecifier
- | enumSpecifier
- | { specCount == 0 }? typedefName
- )
- ;
-
-
-typedefName
- : { isTypedefName ( LT(1).getText() ) }?
- i:ID { ## = #(#[NTypedefName], #i); }
- ;
-
-structOrUnionSpecifier
- { String scopeName; }
- : sou:structOrUnion!
- ( ( ID LCURLY )=> i:ID l:LCURLY
- {
- scopeName = #sou.getText() + " " + #i.getText();
- #l.setText(scopeName);
- pushScope(scopeName);
- }
- structDeclarationList
- { popScope();}
- RCURLY!
- | l1:LCURLY
- {
- scopeName = getAScopeName();
- #l1.setText(scopeName);
- pushScope(scopeName);
- }
- structDeclarationList
- { popScope(); }
- RCURLY!
- | ID
- )
- {
- ## = #( #sou, ## );
- }
- ;
-
-
-structOrUnion
- : "struct"
- | "union"
- ;
-
-
-structDeclarationList
- : ( structDeclaration )+
- ;
-
-
-structDeclaration
- : specifierQualifierList structDeclaratorList ( SEMI! )+
- ;
-
-
-specifierQualifierList
- { int specCount = 0; }
- : ( options { // this loop properly aborts when
- // it finds a non-typedefName ID MBZ
- warnWhenFollowAmbig = false;
- } :
- ( "struct" | "union" | "enum" | typeSpecifier[specCount] )=>
- specCount = typeSpecifier[specCount]
- | typeQualifier
- )+
- ;
-
-
-structDeclaratorList
- : structDeclarator ( COMMA! structDeclarator )*
- ;
-
-
-structDeclarator
- :
- ( COLON constExpr
- | declarator[false] ( COLON constExpr )?
- )
- { ## = #( #[NStructDeclarator], ##); }
- ;
-
-
-enumSpecifier
- : "enum"^
- ( ( ID LCURLY )=> i:ID LCURLY enumList[i.getText()] RCURLY!
- | LCURLY enumList["anonymous"] RCURLY!
- | ID
- )
- ;
-
-
-enumList[String enumName]
- : enumerator[enumName] ( COMMA! enumerator[enumName] )*
- ;
-
-enumerator[String enumName]
- : i:ID { symbolTable.add( i.getText(),
- #( null,
- #[LITERAL_enum, "enum"],
- #[ ID, enumName]
- )
- );
- }
- (ASSIGN constExpr)?
- ;
-
-
-initDeclList[AST declarationSpecifiers]
- : initDecl[declarationSpecifiers]
- ( COMMA! initDecl[declarationSpecifiers] )*
- ;
-
-
-initDecl[AST declarationSpecifiers]
- { String declName = ""; }
- : declName = d:declarator[false]
- { AST ds1, d1;
- ds1 = astFactory.dupList(declarationSpecifiers);
- d1 = astFactory.dupList(#d);
- symbolTable.add(declName, #(null, ds1, d1) );
- }
- ( ASSIGN initializer
- | COLON expr
- )?
- { ## = #( #[NInitDecl], ## ); }
-
- ;
-
-pointerGroup
- : ( STAR ( typeQualifier )* )+ { ## = #( #[NPointerGroup], ##); }
- ;
-
-
-
-idList
- : ID ( COMMA! ID )*
- ;
-
-
-initializer
- : ( assignExpr
- | LCURLY initializerList ( COMMA! )? RCURLY!
- )
- { ## = #( #[NInitializer], ## ); }
- ;
-
-
-initializerList
- : initializer ( COMMA! initializer )*
- ;
-
-
-declarator[boolean isFunctionDefinition] returns [String declName]
- { declName = ""; }
- :
- ( pointerGroup )?
-
- ( id:ID { declName = id.getText(); }
- | LPAREN declName = declarator[false] RPAREN
- )
-
- ( ! LPAREN
- {
- if (isFunctionDefinition) {
- pushScope(declName);
- }
- else {
- pushScope("!"+declName);
- }
- }
- (
- (declSpecifiers)=> p:parameterTypeList
- {
- ## = #( null, ##, #( #[NParameterTypeList], #p ) );
- }
-
- | (i:idList)?
- {
- ## = #( null, ##, #( #[NParameterTypeList], #i ) );
- }
- )
- {
- popScope();
- }
- RPAREN
- | LBRACKET ( constExpr )? RBRACKET
- )*
- { ## = #( #[NDeclarator], ## ); }
- ;
-
-parameterTypeList
- : parameterDeclaration
- ( options {
- warnWhenFollowAmbig = false;
- } :
- COMMA!
- parameterDeclaration
- )*
- ( COMMA!
- VARARGS
- )?
- ;
-
-
-parameterDeclaration
- { String declName; }
- : ds:declSpecifiers
- ( ( declarator[false] )=> declName = d:declarator[false]
- {
- AST d2, ds2;
- d2 = astFactory.dupList(#d);
- ds2 = astFactory.dupList(#ds);
- symbolTable.add(declName, #(null, ds2, d2));
- }
- | nonemptyAbstractDeclarator
- )?
- {
- ## = #( #[NParameterDeclaration], ## );
- }
- ;
-
-/* JTC:
- * This handles both new and old style functions.
- * see declarator rule to see differences in parameters
- * and here (declaration SEMI)* is the param type decls for the
- * old style. may want to do some checking to check for illegal
- * combinations (but I assume all parsed code will be legal?)
- */
-
-functionDef
- { String declName; }
- : ( (functionDeclSpecifiers)=> ds:functionDeclSpecifiers
- | //epsilon
- )
- declName = d:declarator[true]
- {
- AST d2, ds2;
- d2 = astFactory.dupList(#d);
- ds2 = astFactory.dupList(#ds);
- symbolTable.add(declName, #(null, ds2, d2));
- pushScope(declName);
- }
- ( declaration )* (VARARGS)? ( SEMI! )*
- { popScope(); }
- compoundStatement[declName]
- { ## = #( #[NFunctionDef], ## );}
- ;
-
-functionDeclSpecifiers
- { int specCount = 0; }
- : ( options { // this loop properly aborts when
- // it finds a non-typedefName ID MBZ
- warnWhenFollowAmbig = false;
- } :
- functionStorageClassSpecifier
- | typeQualifier
- | ( "struct" | "union" | "enum" | typeSpecifier[specCount] )=>
- specCount = typeSpecifier[specCount]
- )+
- ;
-
-declarationList
- : ( options { // this loop properly aborts when
- // it finds a non-typedefName ID MBZ
- warnWhenFollowAmbig = false;
- } :
- ( declarationPredictor )=> declaration
- )+
- ;
-
-declarationPredictor
- : (options { //only want to look at declaration if I don't see typedef
- warnWhenFollowAmbig = false;
- }:
- "typedef"
- | declaration
- )
- ;
-
-
-compoundStatement[String scopeName]
- : LCURLY!
- {
- pushScope(scopeName);
- }
- ( ( declarationPredictor)=> declarationList )?
- ( statementList )?
- { popScope(); }
- RCURLY!
- { ## = #( #[NCompoundStatement, scopeName], ##); }
- ;
-
-
-statementList
- : ( statement )+
- ;
-statement
- : SEMI // Empty statements
-
- | compoundStatement[getAScopeName()] // Group of statements
-
- | expr SEMI! { ## = #( #[NStatementExpr], ## ); } // Expressions
-
-// Iteration statements:
-
- | "while"^ LPAREN! expr RPAREN! statement
- | "do"^ statement "while"! LPAREN! expr RPAREN! SEMI!
- |! "for"
- LPAREN ( e1:expr )? SEMI ( e2:expr )? SEMI ( e3:expr )? RPAREN
- s:statement
- {
- if ( #e1 == null) { #e1 = (TNode) #[ NEmptyExpression ]; }
- if ( #e2 == null) { #e2 = (TNode) #[ NEmptyExpression ]; }
- if ( #e3 == null) { #e3 = (TNode) #[ NEmptyExpression ]; }
- ## = #( #[LITERAL_for, "for"], #e1, #e2, #e3, #s );
- }
-
-
-// Jump statements:
-
- | "goto"^ ID SEMI!
- | "continue" SEMI!
- | "break" SEMI!
- | "return"^ ( expr )? SEMI!
-
-
-// Labeled statements:
- | ID COLON! (options {warnWhenFollowAmbig=false;}:statement)? { ## = #( #[NLabel], ## ); }
- | "case"^ constExpr COLON! statement
- | "default"^ COLON! statement
-
-
-
-// Selection statements:
-
- | "if"^
- LPAREN! expr RPAREN! statement
- ( //standard if-else ambiguity
- options {
- warnWhenFollowAmbig = false;
- } :
- "else" statement )?
- | "switch"^ LPAREN! expr RPAREN! statement
- ;
-
-
-
-
-
-
-expr
- : assignExpr (options {
- /* MBZ:
- COMMA is ambiguous between comma expressions and
- argument lists. argExprList should get priority,
- and it does by being deeper in the expr rule tree
- and using (COMMA assignExpr)*
- */
- warnWhenFollowAmbig = false;
- } :
- c:COMMA^ { #c.setType(NCommaExpr); } assignExpr
- )*
- ;
-
-
-assignExpr
- : conditionalExpr ( a:assignOperator! assignExpr { ## = #( #a, ## );} )?
- ;
-
-assignOperator
- : ASSIGN
- | DIV_ASSIGN
- | PLUS_ASSIGN
- | MINUS_ASSIGN
- | STAR_ASSIGN
- | MOD_ASSIGN
- | RSHIFT_ASSIGN
- | LSHIFT_ASSIGN
- | BAND_ASSIGN
- | BOR_ASSIGN
- | BXOR_ASSIGN
- ;
-
-
-conditionalExpr
- : logicalOrExpr
- ( QUESTION^ expr COLON! conditionalExpr )?
- ;
-
-
-constExpr
- : conditionalExpr
- ;
-
-logicalOrExpr
- : logicalAndExpr ( LOR^ logicalAndExpr )*
- ;
-
-
-logicalAndExpr
- : inclusiveOrExpr ( LAND^ inclusiveOrExpr )*
- ;
-
-inclusiveOrExpr
- : exclusiveOrExpr ( BOR^ exclusiveOrExpr )*
- ;
-
-
-exclusiveOrExpr
- : bitAndExpr ( BXOR^ bitAndExpr )*
- ;
-
-
-bitAndExpr
- : equalityExpr ( BAND^ equalityExpr )*
- ;
-
-
-
-equalityExpr
- : relationalExpr
- ( ( EQUAL^ | NOT_EQUAL^ ) relationalExpr )*
- ;
-
-
-relationalExpr
- : shiftExpr
- ( ( LT^ | LTE^ | GT^ | GTE^ ) shiftExpr )*
- ;
-
-
-
-shiftExpr
- : additiveExpr
- ( ( LSHIFT^ | RSHIFT^ ) additiveExpr )*
- ;
-
-
-additiveExpr
- : multExpr
- ( ( PLUS^ | MINUS^ ) multExpr )*
- ;
-
-
-multExpr
- : castExpr
- ( ( STAR^ | DIV^ | MOD^ ) castExpr )*
- ;
-
-
-castExpr
- : ( LPAREN typeName RPAREN )=>
- LPAREN! typeName RPAREN! ( castExpr )
- { ## = #( #[NCast, "("], ## ); }
-
- | unaryExpr
- ;
-
-
-typeName
- : specifierQualifierList (nonemptyAbstractDeclarator)?
- ;
-
-nonemptyAbstractDeclarator
- : (
- pointerGroup
- ( (LPAREN
- ( nonemptyAbstractDeclarator
- | parameterTypeList
- )?
- RPAREN)
- | (LBRACKET (expr)? RBRACKET)
- )*
-
- | ( (LPAREN
- ( nonemptyAbstractDeclarator
- | parameterTypeList
- )?
- RPAREN)
- | (LBRACKET (expr)? RBRACKET)
- )+
- )
- { ## = #( #[NNonemptyAbstractDeclarator], ## ); }
-
- ;
-
-/* JTC:
-
-LR rules:
-
-abstractDeclarator
- : nonemptyAbstractDeclarator
- | // null
- ;
-
-nonemptyAbstractDeclarator
- : LPAREN nonemptyAbstractDeclarator RPAREN
- | abstractDeclarator LPAREN RPAREN
- | abstractDeclarator (LBRACKET (expr)? RBRACKET)
- | STAR abstractDeclarator
- ;
-*/
-
-unaryExpr
- : postfixExpr
- | INC^ unaryExpr
- | DEC^ unaryExpr
- | u:unaryOperator castExpr { ## = #( #[NUnaryExpr], ## ); }
-
- | "sizeof"^
- ( ( LPAREN typeName )=> LPAREN typeName RPAREN
- | unaryExpr
- )
- ;
-
-
-unaryOperator
- : BAND
- | STAR
- | PLUS
- | MINUS
- | BNOT
- | LNOT
- ;
-
-postfixExpr
- : primaryExpr
- (
- postfixSuffix {## = #( #[NPostfixExpr], ## );}
- )?
- ;
-postfixSuffix
- :
- ( PTR ID
- | DOT ID
- | functionCall
- | LBRACKET expr RBRACKET
- | INC
- | DEC
- )+
- ;
-
-functionCall
- :
- LPAREN^ (a:argExprList)? RPAREN
- {
- ##.setType( NFunctionCallArgs );
- }
- ;
-
-
-primaryExpr
- : ID
- | charConst
- | intConst
- | floatConst
- | stringConst
-
-// JTC:
-// ID should catch the enumerator
-// leaving it in gives ambiguous err
-// | enumerator
- | LPAREN! expr RPAREN! { ## = #( #[NExpressionGroup, "("], ## ); }
- ;
-
-argExprList
- : assignExpr ( COMMA! assignExpr )*
- ;
-
-
-
-protected
-charConst
- : CharLiteral
- ;
-
-
-protected
-stringConst
- : (StringLiteral)+ { ## = #(#[NStringSeq], ##); }
- ;
-
-
-protected
-intConst
- : IntOctalConst
- | LongOctalConst
- | UnsignedOctalConst
- | IntIntConst
- | LongIntConst
- | UnsignedIntConst
- | IntHexConst
- | LongHexConst
- | UnsignedHexConst
- ;
-
-
-protected
-floatConst
- : FloatDoubleConst
- | DoubleDoubleConst
- | LongDoubleConst
- ;
-
-
-
-
-
-
-dummy
- : NTypedefName
- | NInitDecl
- | NDeclarator
- | NStructDeclarator
- | NDeclaration
- | NCast
- | NPointerGroup
- | NExpressionGroup
- | NFunctionCallArgs
- | NNonemptyAbstractDeclarator
- | NInitializer
- | NStatementExpr
- | NEmptyExpression
- | NParameterTypeList
- | NFunctionDef
- | NCompoundStatement
- | NParameterDeclaration
- | NCommaExpr
- | NUnaryExpr
- | NLabel
- | NPostfixExpr
- | NRangeExpr
- | NStringSeq
- | NInitializerElementLabel
- | NLcurlyInitializer
- | NAsmAttribute
- | NGnuAsmExpr
- | NTypeMissing
- ;
-
-
-
-
-
-
-{
- import java.io.*;
- import antlr.*;
-}
-
-class StdCLexer extends Lexer;
-
-options
- {
- k = 3;
- exportVocab = STDC;
- testLiterals = false;
- }
-
-{
- LineObject lineObject = new LineObject();
- String originalSource = "";
- PreprocessorInfoChannel preprocessorInfoChannel = new PreprocessorInfoChannel();
- int tokenNumber = 0;
- boolean countingTokens = true;
- int deferredLineCount = 0;
-
- public void setCountingTokens(boolean ct)
- {
- countingTokens = ct;
- if ( countingTokens ) {
- tokenNumber = 0;
- }
- else {
- tokenNumber = 1;
- }
- }
-
- public void setOriginalSource(String src)
- {
- originalSource = src;
- lineObject.setSource(src);
- }
- public void setSource(String src)
- {
- lineObject.setSource(src);
- }
-
- public PreprocessorInfoChannel getPreprocessorInfoChannel()
- {
- return preprocessorInfoChannel;
- }
-
- public void setPreprocessingDirective(String pre)
- {
- preprocessorInfoChannel.addLineForTokenNumber( pre, new Integer(tokenNumber) );
- }
-
- public void addDefine(String name, String value)
- {
- }
-
- protected Token makeToken(int t)
- {
- if ( t != Token.SKIP && countingTokens) {
- tokenNumber++;
- }
- CToken tok = (CToken) super.makeToken(t);
- tok.setLine(lineObject.line);
- tok.setSource(lineObject.source);
- tok.setTokenNumber(tokenNumber);
-
- lineObject.line += deferredLineCount;
- deferredLineCount = 0;
- return tok;
- }
-
- public void deferredNewline() {
- deferredLineCount++;
- }
-
- public void newline() {
- lineObject.newline();
- }
-
-
-
-
-
-
-}
-
-protected
-Vocabulary
- : '\3'..'\377'
- ;
-
-
-/* Operators: */
-
-ASSIGN : '=' ;
-COLON : ':' ;
-COMMA : ',' ;
-QUESTION : '?' ;
-SEMI : ';' ;
-PTR : "->" ;
-
-
-// DOT & VARARGS are commented out since they are generated as part of
-// the Number rule below due to some bizarre lexical ambiguity shme.
-
-// DOT : '.' ;
-protected
-DOT:;
-
-// VARARGS : "..." ;
-protected
-VARARGS:;
-
-
-LPAREN : '(' ;
-RPAREN : ')' ;
-LBRACKET : '[' ;
-RBRACKET : ']' ;
-LCURLY : '{' ;
-RCURLY : '}' ;
-
-EQUAL : "==" ;
-NOT_EQUAL : "!=" ;
-LTE : "<=" ;
-LT : "<" ;
-GTE : ">=" ;
-GT : ">" ;
-
-DIV : '/' ;
-DIV_ASSIGN : "/=" ;
-PLUS : '+' ;
-PLUS_ASSIGN : "+=" ;
-INC : "++" ;
-MINUS : '-' ;
-MINUS_ASSIGN : "-=" ;
-DEC : "--" ;
-STAR : '*' ;
-STAR_ASSIGN : "*=" ;
-MOD : '%' ;
-MOD_ASSIGN : "%=" ;
-RSHIFT : ">>" ;
-RSHIFT_ASSIGN : ">>=" ;
-LSHIFT : "<<" ;
-LSHIFT_ASSIGN : "<<=" ;
-
-LAND : "&&" ;
-LNOT : '!' ;
-LOR : "||" ;
-
-BAND : '&' ;
-BAND_ASSIGN : "&=" ;
-BNOT : '~' ;
-BOR : '|' ;
-BOR_ASSIGN : "|=" ;
-BXOR : '^' ;
-BXOR_ASSIGN : "^=" ;
-
-
-Whitespace
- : ( ( '\003'..'\010' | '\t' | '\013' | '\f' | '\016'.. '\037' | '\177'..'\377' | ' ' )
- | "\r\n" { newline(); }
- | ( '\n' | '\r' ) { newline(); }
- ) { _ttype = Token.SKIP; }
- ;
-
-
-Comment
- : "/*"
- ( { LA(2) != '/' }? '*'
- | "\r\n" { deferredNewline(); }
- | ( '\r' | '\n' ) { deferredNewline(); }
- | ~( '*'| '\r' | '\n' )
- )*
- "*/" { _ttype = Token.SKIP;
- }
- ;
-
-
-CPPComment
- :
- "//" ( ~('\n') )*
- {
- _ttype = Token.SKIP;
- }
- ;
-
-protected NonWhitespace
- : (~('\r' | '\n'))*
- ;
-
-
-PREPROC_DIRECTIVE
-options {
- paraphrase = "a line directive";
-}
-
- :
- '#'
- ( ( "line" || (( ' ' | '\t' | '\014')+ '0'..'9')) => LineDirective
- | ( (Space)* "define" (Space)* i:ID (Space)* (n:Number)?
- nw:NonWhitespace
- ("\r\n" | "\r" | "\n") ) { if (n != null) {
- addDefine(i.getText(), n.getText());
- } else {
- setPreprocessingDirective("#define " + i.getText() + " " +
- nw.getText());
- }
- }
- | (~'\n')* { setPreprocessingDirective(getText()); }
- )
- {
- _ttype = Token.SKIP;
- }
- ;
-
-protected Space:
- ( ' ' | '\t' | '\014')
- ;
-
-protected LineDirective
-{
- boolean oldCountingTokens = countingTokens;
- countingTokens = false;
-}
-:
- {
- lineObject = new LineObject();
- deferredLineCount = 0;
- }
- ("line")? //this would be for if the directive started "#line", but not there for GNU directives
- (Space)+
- n:Number { lineObject.setLine(Integer.parseInt(n.getText())); }
- (Space)+
- ( fn:StringLiteral { try {
- lineObject.setSource(fn.getText().substring(1,fn.getText().length()-1));
- }
- catch (StringIndexOutOfBoundsException e) { /*not possible*/ }
- }
- | fi:ID { lineObject.setSource(fi.getText()); }
- )?
- (Space)*
- ("1" { lineObject.setEnteringFile(true); } )?
- (Space)*
- ("2" { lineObject.setReturningToFile(true); } )?
- (Space)*
- ("3" { lineObject.setSystemHeader(true); } )?
- (Space)*
- ("4" { lineObject.setTreatAsC(true); } )?
- (~('\r' | '\n'))*
- ("\r\n" | "\r" | "\n")
- {
- preprocessorInfoChannel.addLineForTokenNumber(new LineObject(lineObject), new Integer(tokenNumber));
- countingTokens = oldCountingTokens;
- }
- ;
-
-
-
-/* Literals: */
-
-/*
- * Note that we do NOT handle tri-graphs nor multi-byte sequences.
- */
-
-
-/*
- * Note that we can't have empty character constants (even though we
- * can have empty strings :-).
- */
-CharLiteral
- : '\'' ( Escape | ~( '\'' ) ) '\''
- ;
-
-
-/*
- * Can't have raw imbedded newlines in string constants. Strict reading of
- * the standard gives odd dichotomy between newlines & carriage returns.
- * Go figure.
- */
-StringLiteral
- : '"'
- ( Escape
- | (
- '\r' { deferredNewline(); }
- | '\n' {
- deferredNewline();
- _ttype = BadStringLiteral;
- }
- | '\\' '\n' {
- deferredNewline();
- }
- )
- | ~( '"' | '\r' | '\n' | '\\' )
- )*
- '"'
- ;
-
-
-protected BadStringLiteral
- : // Imaginary token.
- ;
-
-
-/*
- * Handle the various escape sequences.
- *
- * Note carefully that these numeric escape *sequences* are *not* of the
- * same form as the C language numeric *constants*.
- *
- * There is no such thing as a binary numeric escape sequence.
- *
- * Octal escape sequences are either 1, 2, or 3 octal digits exactly.
- *
- * There is no such thing as a decimal escape sequence.
- *
- * Hexadecimal escape sequences are begun with a leading \x and continue
- * until a non-hexadecimal character is found.
- *
- * No real handling of tri-graph sequences, yet.
- */
-
-protected
-Escape
- : '\\'
- ( options{warnWhenFollowAmbig=false;}:
- 'a'
- | 'b'
- | 'f'
- | 'n'
- | 'r'
- | 't'
- | 'v'
- | '"'
- | '\''
- | '\\'
- | '?'
- | ('0'..'3') ( options{warnWhenFollowAmbig=false;}: Digit ( options{warnWhenFollowAmbig=false;}: Digit )? )?
- | ('4'..'7') ( options{warnWhenFollowAmbig=false;}: Digit )?
- | 'x' ( options{warnWhenFollowAmbig=false;}: Digit | 'a'..'f' | 'A'..'F' )+
- )
- ;
-
-
-/* Numeric Constants: */
-
-protected
-Digit
- : '0'..'9'
- ;
-
-protected
-LongSuffix
- : 'l'
- | 'L'
- ;
-
-protected
-UnsignedSuffix
- : 'u'
- | 'U'
- ;
-
-protected
-FloatSuffix
- : 'f'
- | 'F'
- ;
-
-protected
-Exponent
- : ( 'e' | 'E' ) ( '+' | '-' )? ( Digit )+
- ;
-
-
-protected
-DoubleDoubleConst:;
-
-protected
-FloatDoubleConst:;
-
-protected
-LongDoubleConst:;
-
-protected
-IntOctalConst:;
-
-protected
-LongOctalConst:;
-
-protected
-UnsignedOctalConst:;
-
-protected
-IntIntConst:;
-
-protected
-LongIntConst:;
-
-protected
-UnsignedIntConst:;
-
-protected
-IntHexConst:;
-
-protected
-LongHexConst:;
-
-protected
-UnsignedHexConst:;
-
-
-
-
-Number
- : ( ( Digit )+ ( '.' | 'e' | 'E' ) )=> ( Digit )+
- ( '.' ( Digit )* ( Exponent )?
- | Exponent
- ) { _ttype = DoubleDoubleConst; }
- ( FloatSuffix { _ttype = FloatDoubleConst; }
- | LongSuffix { _ttype = LongDoubleConst; }
- )?
-
- | ( "..." )=> "..." { _ttype = VARARGS; }
-
- | '.' { _ttype = DOT; }
- ( ( Digit )+ ( Exponent )?
- { _ttype = DoubleDoubleConst; }
- ( FloatSuffix { _ttype = FloatDoubleConst; }
- | LongSuffix { _ttype = LongDoubleConst; }
- )?
- )?
-
- | '0' ( '0'..'7' )* { _ttype = IntOctalConst; }
- ( LongSuffix { _ttype = LongOctalConst; }
- | UnsignedSuffix { _ttype = UnsignedOctalConst; }
- )?
-
- | '1'..'9' ( Digit )* { _ttype = IntIntConst; }
- ( LongSuffix { _ttype = LongIntConst; }
- | UnsignedSuffix { _ttype = UnsignedIntConst; }
- )?
-
- | '0' ( 'x' | 'X' ) ( 'a'..'f' | 'A'..'F' | Digit )+
- { _ttype = IntHexConst; }
- ( LongSuffix { _ttype = LongHexConst; }
- | UnsignedSuffix { _ttype = UnsignedHexConst; }
- )?
- ;
-
-
-ID
- options
- {
- testLiterals = true;
- }
- : ( 'a'..'z' | 'A'..'Z' | '_' )
- ( 'a'..'z' | 'A'..'Z' | '_' | '0'..'9' )*
- ;
-
-
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-29 22:33:39 +0000