| /* |
| * 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 |
| |