ttail/src/include/ttail.h

/*
 * Copyright 2017 Yann Weber
 * 
 * This file is part of Ttail.
 * 
 * Ttail 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 of the License, or
 * any later version.
 * 
 * Ttail 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 Ttail.  If not, see <http://www.gnu.org/licenses/>.
 */
#ifndef _ttail_h__
#define _ttail_h__

#include <ctype.h>
#include <errno.h>
#include <getopt.h>
#include <regex.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <time.h>
#include <unistd.h>

typedef struct _ttail_s ttail_t;

#include "config.h"
#include "ttail_search.h"

#define TTAIL_FLAG_PREFIX 1
#define TTAIL_FLAG_DATE_MIN 2
#define TTAIL_FLAG_DATE_MAX 4
#define TTAIL_FLAG_FORMAT 8
#define TTAIL_FLAG_EXTENDED_RE 16
#define TTAIL_FLAG_CI_RE 32
/**! When set indicate that ttail is in permissive mode */
#define TTAIL_FLAG_PERMISSIVE 64

#define TTAIL_DEFAULT_FORMATS {"%m",\
"%A %B %d, %Y %H:%M:%S",\
"%A",\
"%B%n%d %H:%M:%S",\
"%B%n%d %H:%M",\
"%m/%d/%y %I %p",\
"%d,%m,%Y %H:%M",\
"at %A the %dst of %B in %Y",\
"run job at %I %p,%B %dnd",\
"%A den %d. %B %Y %H.%M Uhr",\
"%c",\
"%d/%B/%Y:%H:%M:%S",\
"%d/%B/%Y:%H:%M",\
"%d/%m/%Y:%H:%M:%S",\
"%d/%m/%Y:%H:%M",\
"%y/%m/%d",\
"%Y/%m/%d",\
"%y-%m-%d",\
"%Y/%m/%d:%H:%M",NULL}

#define ttail_permissive(t) ( t->flag & TTAIL_FLAG_PERMISSIVE )
#define ttail_strict_msg() fprintf(stderr, "This error can be non-fatal using \
-P --permissive flag\n")


struct _ttail_s
{
	char **logfile_name; /*!< logfiles name */
	FILE **logfile; /*!< logfiles pointers */
	size_t logfile_sz; /*<! logfiles count */
	
	/*! A regex matching the datetime prefix in loglines */
	regex_t date_prefix;
	/*! An alternative to regex is to give a constant number of char
	    to delete */
	int prefix_sz;

	/*! A strptime format matching datetime in logfile */
	char *fmt;
	
	/*! Date min set from cli */
	struct tm date_min;
	struct tm date_max;

	int verbose;
	/**@brief Status flag
	 *
	 *see TTAIL_FLAG_*
	 */
	int flag;

	ttail_search_t *session;
};

#endif