antlr3baserecognizer.c File Reference

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Detailed Description

Contains the base functions that all recognizers require.

Any function can be overridden by a lexer/parser/tree parser or by the ANTLR3 programmer.

#include <antlr3baserecognizer.h>

Include dependency graph for antlr3baserecognizer.c:

Functions
static ANTLR3_BOOLEAN	alreadyParsedRule (pANTLR3_BASE_RECOGNIZER recognizer, ANTLR3_MARKER ruleIndex)
	Has this rule already parsed input at the current index in the input stream? Return ANTLR3_TRUE if we have and ANTLR3_FALSE if we have not.
ANTLR3_API pANTLR3_BASE_RECOGNIZER	antlr3BaseRecognizerNew (ANTLR3_UINT32 type, ANTLR3_UINT32 sizeHint, pANTLR3_RECOGNIZER_SHARED_STATE state)
ANTLR3_API void	antlr3MTExceptionNew (pANTLR3_BASE_RECOGNIZER recognizer)
	Creates a new Mismatched Token Exception and inserts in the recognizer exception stack.
ANTLR3_API void	antlr3RecognitionExceptionNew (pANTLR3_BASE_RECOGNIZER recognizer)
static void	beginBacktrack (pANTLR3_BASE_RECOGNIZER recognizer, ANTLR3_UINT32 level)
static void	beginResync (pANTLR3_BASE_RECOGNIZER recognizer)
static pANTLR3_BITSET	combineFollows (pANTLR3_BASE_RECOGNIZER recognizer, ANTLR3_BOOLEAN exact)
	Compute the current followset for the input stream.
static pANTLR3_BITSET	computeCSRuleFollow (pANTLR3_BASE_RECOGNIZER recognizer)
	Compute the context-sensitive FOLLOW set for current rule.
static pANTLR3_BITSET	computeErrorRecoverySet (pANTLR3_BASE_RECOGNIZER recognizer)
	Compute the error recovery set for the current rule.
static void	consumeUntil (pANTLR3_BASE_RECOGNIZER recognizer, ANTLR3_UINT32 tokenType)
	Eat tokens from the input stream until we get one of JUST the right type.
static void	consumeUntilSet (pANTLR3_BASE_RECOGNIZER recognizer, pANTLR3_BITSET set)
	Eat tokens from the input stream until we find one that belongs to the supplied set.
static void	displayRecognitionError (pANTLR3_BASE_RECOGNIZER recognizer, pANTLR3_UINT8 *tokenNames)
	Standard/Example error display method.
static void	endBacktrack (pANTLR3_BASE_RECOGNIZER recognizer, ANTLR3_UINT32 level, ANTLR3_BOOLEAN successful)
static void	endResync (pANTLR3_BASE_RECOGNIZER recognizer)
static void	freeBR (pANTLR3_BASE_RECOGNIZER recognizer)
static void ANTLR3_CDECL	freeIntTrie (void *trie)
static void *	getCurrentInputSymbol (pANTLR3_BASE_RECOGNIZER recognizer, pANTLR3_INT_STREAM istream)
static void *	getMissingSymbol (pANTLR3_BASE_RECOGNIZER recognizer, pANTLR3_INT_STREAM istream, pANTLR3_EXCEPTION e, ANTLR3_UINT32 expectedTokenType, pANTLR3_BITSET_LIST follow)
static ANTLR3_UINT32	getNumberOfSyntaxErrors (pANTLR3_BASE_RECOGNIZER recognizer)
	Return how many syntax errors were detected by this recognizer.
static pANTLR3_STACK	getRuleInvocationStack (pANTLR3_BASE_RECOGNIZER recognizer)
	Return the rule invocation stack (how we got here in the parse.
static pANTLR3_STACK	getRuleInvocationStackNamed (pANTLR3_BASE_RECOGNIZER recognizer, pANTLR3_UINT8 name)
static ANTLR3_MARKER	getRuleMemoization (pANTLR3_BASE_RECOGNIZER recognizer, ANTLR3_INTKEY ruleIndex, ANTLR3_MARKER ruleParseStart)
	Pointer to a function to return whether the rule has parsed input starting at the supplied start index before.
static void *	match (pANTLR3_BASE_RECOGNIZER recognizer, ANTLR3_UINT32 ttype, pANTLR3_BITSET_LIST follow)
	Match current input symbol against ttype.
static void	matchAny (pANTLR3_BASE_RECOGNIZER recognizer)
	Consumes the next token, whatever it is, and resets the recognizer state so that it is not in error.
static void	memoize (pANTLR3_BASE_RECOGNIZER recognizer, ANTLR3_MARKER ruleIndex, ANTLR3_MARKER ruleParseStart)
	Record whether or not this rule parsed the input at this position successfully.
static void	mismatch (pANTLR3_BASE_RECOGNIZER recognizer, ANTLR3_UINT32 ttype, pANTLR3_BITSET_LIST follow)
	Factor out what to do upon token mismatch so tree parsers can behave differently.
static ANTLR3_BOOLEAN	mismatchIsMissingToken (pANTLR3_BASE_RECOGNIZER recognizer, pANTLR3_INT_STREAM is, pANTLR3_BITSET_LIST follow)
static ANTLR3_BOOLEAN	mismatchIsUnwantedToken (pANTLR3_BASE_RECOGNIZER recognizer, pANTLR3_INT_STREAM is, ANTLR3_UINT32 ttype)
static void	recover (pANTLR3_BASE_RECOGNIZER recognizer)
	Recover from an error found on the input stream.
static ANTLR3_BOOLEAN	recoverFromMismatchedElement (pANTLR3_BASE_RECOGNIZER recognizer, pANTLR3_BITSET_LIST followBits)
	This code is factored out from mismatched token and mismatched set recovery.
static void *	recoverFromMismatchedSet (pANTLR3_BASE_RECOGNIZER recognizer, pANTLR3_BITSET_LIST follow)
static void *	recoverFromMismatchedToken (pANTLR3_BASE_RECOGNIZER recognizer, ANTLR3_UINT32 ttype, pANTLR3_BITSET_LIST follow)
	Attempt to recover from a single missing or extra token.
static void	reportError (pANTLR3_BASE_RECOGNIZER recognizer)
	Report a recognition problem.
static void	reset (pANTLR3_BASE_RECOGNIZER recognizer)
static ANTLR3_BOOLEAN	synpred (pANTLR3_BASE_RECOGNIZER recognizer, void *ctx, void(*predicate)(void *ctx))
	A syntactic predicate.
static pANTLR3_HASH_TABLE	toStrings (pANTLR3_BASE_RECOGNIZER recognizer, pANTLR3_HASH_TABLE tokens)
	Convenience method for template rewrites - NYI.