antlr3baserecognizer.c - Man Page

Contains the base functions that all recognizers require.


#include <antlr3baserecognizer.h>


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 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.

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.


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Wed Jul 21 2021 Version 3.3.1 ANTLR3C