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/* dctrl-tools - Debian control file inspection tools
Copyright © 2011 Antti-Juhani Kaijanaho
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.
You should have received a copy of the GNU 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 GUARD_LIB_ATOM_H
#define GUARD_LIB_ATOM_H
#include <regex.h>
#include "paragraph.h"
#include "util.h"
/* An atomic predicate. */
struct atom {
/* The name of field to which matching is limited. Empty
* field_name specifies the whole paragraph (in which case
* field_inx is -1. */
char const * field_name; size_t field_inx;
/* The index to the field whose value is to be used when this
* field is empty. */
size_t repl_inx;
/* Matching mode */
enum matching_mode {
M_SUBSTR, /* substring matching */
M_REGEX, /* POSIX regular expression match */
M_EREGEX, /* POSIX extended regular expression matching */
M_EXACT, /* exact string match */
#define M_FIRST_VERSION M_VER_EQ
M_VER_EQ, /* numeric equality comparison */
M_VER_LT, /* numeric < */
M_VER_LE, /* numeric <= */
M_VER_GT, /* numeric > */
M_VER_GE, /* numeric >= */
#define M_LAST_VERSION M_VER_GE
} mode;
/* Flag: should matching ignore case */
unsigned ignore_case;
/* The pattern as given on the command line; interpretation
* depends on matching mode. Must be null-terminated and
* patlen must equal strlen(pat). */
char const * pat; size_t patlen;
/* A compiled version of pat; valid only when mode is M_REGEX
* or M_EREGEX. */
regex_t regex;
/* Flag: (extended) regex should match whole package names */
unsigned whole_pkg;
};
void atom_finish(struct atom * atom);
bool atom_verify(struct atom * atom, para_t * para);
#endif /* GUARD_LIB_ATOM_H */
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