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