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Move the skin parser to a seperate library

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26877 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jonathan Gordon 2010-06-17 06:52:02 +00:00
parent ca564287ee
commit 36b934d241
11 changed files with 45 additions and 12 deletions
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138
lib/skin_parser/skin_parser.h Normal file
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@ -0,0 +1,138 @@
/***************************************************************************
* __________ __ ___.
* 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
#include <stdlib.h>
/********************************************************************
****** Data Structures *********************************************
*******************************************************************/
/* Possible types of element in a WPS file */
enum skin_element_type
{
UNKNOWN = -1,
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;
/* Placeholder for element data
* TEXT and COMMENT uses it for the text string
* TAG, VIEWPORT, LINE, etc may use it for post parse extra storage
*/
void* data;
/* 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 */
char *skin_alloc(size_t size);
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 */