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| -rw-r--r-- | project/dclib/dclib-regex.h | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/project/dclib/dclib-regex.h b/project/dclib/dclib-regex.h new file mode 100644 index 0000000..9c8484d --- /dev/null +++ b/project/dclib/dclib-regex.h @@ -0,0 +1,131 @@ + +/*************************************************************************** + * * + * _____ ____ * + * | __ \ / __ \ _ _ _____ * + * | | \ \ / / \_\ | | | | _ \ * + * | | \ \| | | | | | |_| | * + * | | | || | | | | | ___/ * + * | | / /| | __ | | | | _ \ * + * | |__/ / \ \__/ / | |___| | |_| | * + * |_____/ \____/ |_____|_|_____/ * + * * + * Wiimms source code library * + * * + *************************************************************************** + * * + * Copyright (c) 2012-2020 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 + |