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83 lines
3 KiB
C
83 lines
3 KiB
C
/*
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* Copyright 2008 Jacek Caban for CodeWeavers
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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/*
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* Code in this file is based on files:
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* js/src/jsregexp.h
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* js/src/jsregexp.c
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* from Mozilla project, released under LGPL 2.1 or later.
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*
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* The Original Code is Mozilla Communicator client code, released
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* March 31, 1998.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*/
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#define REG_FOLD 0x01 /* fold uppercase to lowercase */
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#define REG_GLOB 0x02 /* global exec, creates array of matches */
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#define REG_MULTILINE 0x04 /* treat ^ and $ as begin and end of line */
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#define REG_STICKY 0x08 /* only match starting at lastIndex */
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typedef struct RECapture {
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ptrdiff_t index; /* start of contents, -1 for empty */
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size_t length; /* length of capture */
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} RECapture;
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typedef struct match_state_t {
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const WCHAR *cp;
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DWORD match_len;
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DWORD paren_count;
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RECapture parens[1];
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} match_state_t;
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typedef BYTE jsbytecode;
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typedef struct regexp_t {
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WORD flags; /* flags, see jsapi.h's REG_* defines */
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size_t parenCount; /* number of parenthesized submatches */
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size_t classCount; /* count [...] bitmaps */
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struct RECharSet *classList; /* list of [...] bitmaps */
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const WCHAR *source; /* locked source string, sans // */
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DWORD source_len;
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jsbytecode program[1]; /* regular expression bytecode */
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} regexp_t;
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regexp_t* regexp_new(void*, heap_pool_t*, const WCHAR*, DWORD, WORD, BOOL) DECLSPEC_HIDDEN;
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void regexp_destroy(regexp_t*) DECLSPEC_HIDDEN;
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HRESULT regexp_execute(regexp_t*, void*, heap_pool_t*, const WCHAR*,
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DWORD, match_state_t*) DECLSPEC_HIDDEN;
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HRESULT regexp_set_flags(regexp_t**, void*, heap_pool_t*, WORD) DECLSPEC_HIDDEN;
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static inline match_state_t* alloc_match_state(regexp_t *regexp,
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heap_pool_t *pool, const WCHAR *pos)
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{
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size_t size = offsetof(match_state_t, parens) + regexp->parenCount*sizeof(RECapture);
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match_state_t *ret;
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ret = pool ? heap_pool_alloc(pool, size) : heap_alloc(size);
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if(!ret)
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return NULL;
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ret->cp = pos;
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return ret;
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}
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