diff options
Diffstat (limited to 'impl/antlr/libantlr3c-3.4/src/antlr3treeparser.c')
| -rw-r--r-- | impl/antlr/libantlr3c-3.4/src/antlr3treeparser.c | 255 |
1 files changed, 0 insertions, 255 deletions
diff --git a/impl/antlr/libantlr3c-3.4/src/antlr3treeparser.c b/impl/antlr/libantlr3c-3.4/src/antlr3treeparser.c deleted file mode 100644 index b7e035a..0000000 --- a/impl/antlr/libantlr3c-3.4/src/antlr3treeparser.c +++ /dev/null @@ -1,255 +0,0 @@ -/** \file - * Implementation of the tree parser and overrides for the base recognizer - */ - -// [The "BSD licence"] -// Copyright (c) 2005-2009 Jim Idle, Temporal Wave LLC -// http://www.temporal-wave.com -// http://www.linkedin.com/in/jimidle -// -// All rights reserved. -// -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions -// are met: -// 1. Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// 2. Redistributions in binary form must reproduce the above copyright -// notice, this list of conditions and the following disclaimer in the -// documentation and/or other materials provided with the distribution. -// 3. The name of the author may not be used to endorse or promote products -// derived from this software without specific prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR -// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES -// OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. -// IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, -// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT -// NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF -// THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - -#include <antlr3treeparser.h> - -/* BASE Recognizer overrides - */ -static void mismatch (pANTLR3_BASE_RECOGNIZER recognizer, ANTLR3_UINT32 ttype, pANTLR3_BITSET_LIST follow); - -/* Tree parser API - */ -static void setTreeNodeStream (pANTLR3_TREE_PARSER parser, pANTLR3_COMMON_TREE_NODE_STREAM input); -static pANTLR3_COMMON_TREE_NODE_STREAM - getTreeNodeStream (pANTLR3_TREE_PARSER parser); -static void freeParser (pANTLR3_TREE_PARSER parser); -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); - - -ANTLR3_API pANTLR3_TREE_PARSER -antlr3TreeParserNewStream(ANTLR3_UINT32 sizeHint, pANTLR3_COMMON_TREE_NODE_STREAM ctnstream, pANTLR3_RECOGNIZER_SHARED_STATE state) -{ - pANTLR3_TREE_PARSER parser; - - /** Allocate tree parser memory - */ - parser =(pANTLR3_TREE_PARSER) ANTLR3_MALLOC(sizeof(ANTLR3_TREE_PARSER)); - - if (parser == NULL) - { - return NULL; - } - - /* Create and install a base recognizer which does most of the work for us - */ - parser->rec = antlr3BaseRecognizerNew(ANTLR3_TYPE_PARSER, sizeHint, state); - - if (parser->rec == NULL) - { - parser->free(parser); - return NULL; - } - - /* Ensure we can track back to the tree parser super structure - * from the base recognizer structure - */ - parser->rec->super = parser; - parser->rec->type = ANTLR3_TYPE_TREE_PARSER; - - /* Install our base recognizer overrides - */ - parser->rec->mismatch = mismatch; - parser->rec->exConstruct = antlr3MTNExceptionNew; - parser->rec->getCurrentInputSymbol = getCurrentInputSymbol; - parser->rec->getMissingSymbol = getMissingSymbol; - - /* Install tree parser API - */ - parser->getTreeNodeStream = getTreeNodeStream; - parser->setTreeNodeStream = setTreeNodeStream; - parser->free = freeParser; - - /* Install the tree node stream - */ - parser->setTreeNodeStream(parser, ctnstream); - - return parser; -} - -/** - * \brief - * Creates a new Mismatched Tree Nde Exception and inserts in the recognizer - * exception stack. - * - * \param recognizer - * Context pointer for this recognizer - * - */ -ANTLR3_API void -antlr3MTNExceptionNew(pANTLR3_BASE_RECOGNIZER recognizer) -{ - /* Create a basic recognition exception structure - */ - antlr3RecognitionExceptionNew(recognizer); - - /* Now update it to indicate this is a Mismatched token exception - */ - recognizer->state->exception->name = ANTLR3_MISMATCHED_TREE_NODE_NAME; - recognizer->state->exception->type = ANTLR3_MISMATCHED_TREE_NODE_EXCEPTION; - - return; -} - - -static void -freeParser (pANTLR3_TREE_PARSER parser) -{ - if (parser->rec != NULL) - { - // This may have ben a delegate or delegator parser, in which case the - // state may already have been freed (and set to NULL therefore) - // so we ignore the state if we don't have it. - // - if (parser->rec->state != NULL) - { - if (parser->rec->state->following != NULL) - { - parser->rec->state->following->free(parser->rec->state->following); - parser->rec->state->following = NULL; - } - } - parser->rec->free(parser->rec); - parser->rec = NULL; - } - - ANTLR3_FREE(parser); -} - -/** Set the input stream and reset the parser - */ -static void -setTreeNodeStream (pANTLR3_TREE_PARSER parser, pANTLR3_COMMON_TREE_NODE_STREAM input) -{ - parser->ctnstream = input; - parser->rec->reset (parser->rec); - parser->ctnstream->reset (parser->ctnstream); -} - -/** Return a pointer to the input stream - */ -static pANTLR3_COMMON_TREE_NODE_STREAM -getTreeNodeStream (pANTLR3_TREE_PARSER parser) -{ - return parser->ctnstream; -} - - -/** Override for standard base recognizer mismatch function - * as we have DOWN/UP nodes in the stream that have no line info, - * plus we want to alter the exception type. - */ -static void -mismatch (pANTLR3_BASE_RECOGNIZER recognizer, ANTLR3_UINT32 ttype, pANTLR3_BITSET_LIST follow) -{ - recognizer->exConstruct(recognizer); - recognizer->recoverFromMismatchedToken(recognizer, ttype, follow); -} - -#ifdef ANTLR3_WINDOWS -#pragma warning (push) -#pragma warning (disable : 4100) -#endif - -// Default implementation is for parser and assumes a token stream as supplied by the runtime. -// You MAY need override this function if the standard TOKEN_STREAM is not what you are using. -// -static void * -getCurrentInputSymbol (pANTLR3_BASE_RECOGNIZER recognizer, pANTLR3_INT_STREAM istream) -{ - pANTLR3_TREE_NODE_STREAM tns; - pANTLR3_COMMON_TREE_NODE_STREAM ctns; - - tns = (pANTLR3_TREE_NODE_STREAM)(istream->super); - ctns = tns->ctns; - return tns->_LT(tns, 1); -} - - -// Default implementation is for parser and assumes a token stream as supplied by the runtime. -// You MAY need override this function if the standard BASE_TREE is not what you are using. -// -static void * -getMissingSymbol (pANTLR3_BASE_RECOGNIZER recognizer, pANTLR3_INT_STREAM istream, pANTLR3_EXCEPTION e, - ANTLR3_UINT32 expectedTokenType, pANTLR3_BITSET_LIST follow) -{ - pANTLR3_TREE_NODE_STREAM tns; - pANTLR3_COMMON_TREE_NODE_STREAM ctns; - pANTLR3_BASE_TREE node; - pANTLR3_BASE_TREE current; - pANTLR3_COMMON_TOKEN token; - pANTLR3_STRING text; - ANTLR3_INT32 i; - - // Dereference the standard pointers - // - tns = (pANTLR3_TREE_NODE_STREAM)(istream->super); - ctns = tns->ctns; - - // Create a new empty node, by stealing the current one, or the previous one if the current one is EOF - // - current = tns->_LT(tns, 1); - i = -1; - - if (current == &ctns->EOF_NODE.baseTree) - { - current = tns->_LT(tns, -1); - i--; - } - while (((pANTLR3_COMMON_TREE)(current->super))->factory == NULL) - { - current = tns->_LT(tns, i--); - } - - node = current->dupNode(current); - - // Find the newly dupicated token - // - token = node->getToken(node); - - // Create the token text that shows it has been inserted - // - token->setText8 (token, (pANTLR3_UINT8)"<missing "); - text = token->getText (token); - text->append8 (text, (const char *)recognizer->state->tokenNames[expectedTokenType]); - text->append8 (text, (const char *)">"); - - // Finally return the pointer to our new node - // - return node; -} -#ifdef ANTLR3_WINDOWS -#pragma warning (pop) -#endif - |