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54 lines
2.1 KiB
C
54 lines
2.1 KiB
C
/*
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** Copyright (C) 2009-2014 Mischa Sandberg <mischasan@gmail.com>
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** Copyright (C) 2015 Vsevolod Stakhov <vsevolod@highsecure.ru>
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**
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** This program is free software; you can redistribute it and/or modify
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** it under the terms of the GNU Lesser General Public License as
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** published by the Free Software Foundation. You may not use, modify or
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** distribute this program under any other version of the GNU Lesser General
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** Public License.
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**
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** This program 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
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** GNU 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 License
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** along with this program; if not, write to the Free Software
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** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef ACISM_H
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#define ACISM_H
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#include "config.h"
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// "acism" uses MEMREF {ptr,len} bytevec structs for "string" args,
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// rather than NUL-terminated "C" strings.
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typedef struct ac_trie_pat_s { char const *ptr; size_t len; } ac_trie_pat_t;
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typedef struct acism ac_trie_t;
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typedef struct acism ACISM;
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typedef struct ac_trie_pat_s MEMREF;
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ac_trie_t* acism_create(ac_trie_pat_t const *strv, int nstrs);
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void acism_destroy(ac_trie_t*);
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// For each match, acism_scan calls its ACISM_ACTION fn,
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// giving it the strv[] index of the matched string,
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// and the text[] offset of the byte PAST the end of the string.
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// If ACISM_ACTION returns 0, search continues; otherwise,
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// acism_more returns that nonzero value immediately.
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typedef int (ACISM_ACTION)(int strnum, int textpos, void *context);
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// If sequential blocks of (text) are passed to repeated acism_more calls,
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// then search continues where the previous acism_more left off --
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// string matches can cross block boundaries.
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// *state should initially be (0).
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int acism_lookup(ac_trie_t const *psp, const char *text, size_t len,
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ACISM_ACTION *cb, void *context, int *statep, bool caseless);
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#endif//ACISM_H
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