/*************************************************************************** * __________ __ ___. * Open \______ \ ____ ____ | | _\_ |__ _______ ___ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ * \/ \/ \/ \/ \/ * $Id$ * * Copyright (C) 2010 Robert Bieber * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY * KIND, either express or implied. * ****************************************************************************/ #ifndef GENERIC_PARSER_H #define GENERIC_PARSER_H #ifdef __cplusplus extern "C" { #endif #define SKIN_MAX_MEMORY 1048576 /******************************************************************** ****** A global buffer will be used to store the parse tree ******* *******************************************************************/ extern char skin_parse_tree[]; /******************************************************************** ****** Data Structures ********************************************* *******************************************************************/ /* Possible types of element in a WPS file */ enum skin_element_type { VIEWPORT, LINE, SUBLINES, CONDITIONAL, TAG, TEXT, COMMENT, }; enum skin_errorcode { MEMORY_LIMIT_EXCEEDED, NEWLINE_EXPECTED, ILLEGAL_TAG, ARGLIST_EXPECTED, TOO_MANY_ARGS, DEFAULT_NOT_ALLOWED, UNEXPECTED_NEWLINE, INSUFFICIENT_ARGS, INT_EXPECTED, SEPERATOR_EXPECTED, CLOSE_EXPECTED, MULTILINE_EXPECTED }; /* Holds a tag parameter, either numeric or text */ struct skin_tag_parameter { enum { NUMERIC, STRING, CODE, DEFAULT } type; union { int numeric; char* text; struct skin_element* code; } data; char type_code; }; /* Defines an element of a SKIN file */ struct skin_element { /* Defines what type of element it is */ enum skin_element_type type; /* The line on which it's defined in the source file */ int line; /* Text for comments and plaintext */ char* text; /* The tag or conditional name */ struct tag_info *tag; /* Pointer to and size of an array of parameters */ int params_count; struct skin_tag_parameter* params; /* Pointer to and size of an array of children */ int children_count; struct skin_element** children; /* Link to the next element */ struct skin_element* next; }; /*********************************************************************** ***** Functions ******************************************************* **********************************************************************/ /* Parses a WPS document and returns a list of skin_element structures. */ struct skin_element* skin_parse(const char* document); /* Memory management functions */ struct skin_element* skin_alloc_element(); struct skin_element** skin_alloc_children(int count); struct skin_tag_parameter* skin_alloc_params(int count); char* skin_alloc_string(int length); void skin_free_tree(struct skin_element* root); #ifdef __cplusplus } #endif #endif /* GENERIC_PARSER_H */