/* * Mesa 3-D graphics library * Version: 6.2 * * Copyright (C) 1999-2004 Brian Paul All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included * in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #ifndef GRAMMAR_H #define GRAMMAR_H #ifndef GRAMMAR_PORT_INCLUDE #error Do not include this file directly, include your grammar_XXX.h instead #endif #ifdef __cplusplus extern "C" { #endif void grammar_alloc_free (void *); void *grammar_alloc_malloc (size_t); void *grammar_alloc_realloc (void *, size_t, size_t); void *grammar_memory_copy (void *, const void *, size_t); int grammar_string_compare (const byte *, const byte *); int grammar_string_compare_n (const byte *, const byte *, size_t); byte *grammar_string_copy (byte *, const byte *); byte *grammar_string_copy_n (byte *, const byte *, size_t); byte *grammar_string_duplicate (const byte *); unsigned int grammar_string_length (const byte *); /* loads grammar script from null-terminated ASCII <text> returns unique grammar id to grammar object returns 0 if an error occurs (call grammar_get_last_error to retrieve the error text) */ grammar grammar_load_from_text (const byte *text); /* sets a new <value> to a register <name> for grammar <id> returns 0 on error (call grammar_get_last_error to retrieve the error text) returns 1 on success */ int grammar_set_reg8 (grammar id, const byte *name, byte value); /* this function is obsolete, use only for debugging purposes checks if a null-terminated <text> matches given grammar <id> returns 0 on error (call grammar_get_last_error to retrieve the error text) returns 1 on success, the <prod> points to newly allocated buffer with production and <size> is filled with the production size call grammar_alloc_free to free the memory block pointed by <prod> */ int grammar_check (grammar id, const byte *text, byte **prod, unsigned int *size); /* does the same what grammar_check does but much more (approx. 4 times) faster use this function instead of grammar_check <estimate_prod_size> is a hint - the initial production buffer size will be of this size, but if more room is needed it will be safely resized; set it to 0x1000 or so */ int grammar_fast_check (grammar id, const byte *text, byte **prod, unsigned int *size, unsigned int estimate_prod_size); /* destroys grammar object identified by <id> returns 0 on error (call grammar_get_last_error to retrieve the error text) returns 1 on success */ int grammar_destroy (grammar id); /* retrieves last grammar error reported either by grammar_load_from_text, grammar_check or grammar_destroy the user allocated <text> buffer receives error description, <pos> points to error position, <size> is the size of the text buffer to fill in - it must be at least 4 bytes long, */ void grammar_get_last_error (byte *text, unsigned int size, int *pos); #ifdef __cplusplus } #endif #endif