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/***************************************************************************
* *
* _____ ____ *
* | __ \ / __ \ _ _ _____ *
* | | \ \ / / \_\ | | | | _ \ *
* | | \ \| | | | | | |_| | *
* | | | || | | | | | ___/ *
* | | / /| | __ | | | | _ \ *
* | |__/ / \ \__/ / | |___| | |_| | *
* |_____/ \____/ |_____|_|_____/ *
* *
* Wiimms source code library *
* *
***************************************************************************
* *
* Copyright (c) 2012-2021 by Dirk Clemens <wiimm@wiimm.de> *
* *
***************************************************************************
* *
* 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 program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* See file gpl-2.0.txt or http://www.gnu.org/licenses/gpl-2.0.txt *
* *
***************************************************************************/
#ifndef DCLIB_REGEX_H
#define DCLIB_REGEX_H 1
#if DCLIB_USE_PCRE
#include <pcre.h>
#define DC_REGEX_TYPE pcre
#else
#ifndef DCLIB_USE_REGEX
#define DCLIB_USE_REGEX 1
#endif
#if DCLIB_USE_REGEX
#include <regex.h>
#define DC_REGEX_TYPE regex_t
#else
#error Nn Regex Support!
#endif
#endif
#include "dclib-types.h"
#include "dclib-debug.h"
#include "dclib-basics.h"
//
///////////////////////////////////////////////////////////////////////////////
/////////////// struct Regex_t ///////////////
///////////////////////////////////////////////////////////////////////////////
// [[RegexReplace_t]]
typedef struct RegexReplace_t
{
mem_t str; // first: string to replace (maybe 0 bytes)
int ref; // second: back reference to copy (if >=0)
}
RegexReplace_t;
///////////////////////////////////////////////////////////////////////////////
// [[RegexElem_t]]
typedef struct RegexElem_t
{
bool valid; // true: successfull compiled
bool global; // true: replace all ('g')
bool icase; // true: ignore case ('i')
#if DCLIB_USE_PCRE
DC_REGEX_TYPE *regex; // not NULL: compiled regular expression
#else
DC_REGEX_TYPE regex; // compiled regular expression
#endif
int opt; // compile options
ccp pattern; // pattern string, alloced
mem_t replace; // replace string, alloced
RegexReplace_t *repl; // replace data, use 'replace' as reference
uint repl_used; // number of used elements in 'repl'
uint repl_size; // number of available elements in 'repl'
}
RegexElem_t;
///////////////////////////////////////////////////////////////////////////////
// [[RegexMain_t]]
typedef struct Regex_t
{
bool valid; // true: succesfull initialized
RegexElem_t *re_list; // list; either 're_pool' or alloced
RegexElem_t re_pool[3]; // pool for fast access
uint re_used; // number of used elements in 're_list'
uint re_size; // number of available elements in 're_list'
}
Regex_t;
///////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////
void InitializeRegex ( Regex_t *re );
void ResetRegex ( Regex_t *re );
enumError ScanRegex ( Regex_t *re, bool init_re, ccp regex );
int ReplaceRegex
(
Regex_t *re, // valid Regex_t
FastBuf_t *res, // return buffer, cleared
ccp src,
int src_len // -1: use strlen()
);
//
///////////////////////////////////////////////////////////////////////////////
/////////////// E N D ///////////////
///////////////////////////////////////////////////////////////////////////////
#endif // DCLIB_REGEX_H
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