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/*
This file is part of GNUnet
(C) 2012 Christian Grothoff (and other contributing authors)
GNUnet 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 3, or (at your
option) any later version.
GNUnet 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.
You should have received a copy of the GNU General Public License
along with GNUnet; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
/**
* @file include/gnunet_regex_lib.h
* @brief library to parse regular expressions into dfa
* @author Maximilian Szengel
*
*/
#ifndef GNUNET_REGEX_LIB_H
#define GNUNET_REGEX_LIB_H
#include "gnunet_util_lib.h"
#ifdef __cplusplus
extern "C"
{
#if 0 /* keep Emacsens' auto-indent happy */
}
#endif
#endif
/**
* NFA representation
*/
struct GNUNET_REGEX_Nfa;
/**
* Construct an NFA data structure by parsing the regex string of
* length len.
*
* @param regex regular expression string
* @param len length of the string
*
* @return NFA data structure. Needs to be freed using
* GNUNET_REGEX_destroy_nfa
*/
struct GNUNET_REGEX_Nfa *
GNUNET_REGEX_construct_nfa(const char *regex, size_t len);
/**
* Free the memory allocated by constructing the GNUNET_REGEX_Nfa
* data structure.
*
* @param n NFA to be destroyed
*/
void
GNUNET_REGEX_destroy_nfa(struct GNUNET_REGEX_Nfa *n);
/**
* Save the given NFA as a GraphViz dot file
*
* @param n NFA to be saved
* @param filename where to save the file
*/
void
GNUNET_REGEX_save_nfa_graph(struct GNUNET_REGEX_Nfa *n,
const char *filename);
#if 0 /* keep Emacsens' auto-indent happy */
{
#endif
#ifdef __cplusplus
}
#endif
/* end of gnunet_regex_lib.h */
#endif
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