mirror of
https://git.notmuchmail.org/git/notmuch
synced 2024-11-30 14:44:11 +01:00
8a3f86f2f9
This is the result of running
$ uncrustify --replace --config ../devel/uncrustify.cfg *.c *.h
in the parse-time-string directory
102 lines
3.8 KiB
C
102 lines
3.8 KiB
C
/*
|
|
* parse time string - user friendly date and time parser
|
|
* Copyright © 2012 Jani Nikula
|
|
*
|
|
* 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, see <https://www.gnu.org/licenses/>.
|
|
*
|
|
* Author: Jani Nikula <jani@nikula.org>
|
|
*/
|
|
|
|
#ifndef PARSE_TIME_STRING_H
|
|
#define PARSE_TIME_STRING_H
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#include <time.h>
|
|
|
|
/* return values for parse_time_string() */
|
|
enum {
|
|
PARSE_TIME_OK = 0,
|
|
PARSE_TIME_ERR, /* unspecified error */
|
|
PARSE_TIME_ERR_LIB, /* library call failed */
|
|
PARSE_TIME_ERR_ALREADYSET, /* attempt to set unit twice */
|
|
PARSE_TIME_ERR_FORMAT, /* generic date/time format error */
|
|
PARSE_TIME_ERR_DATEFORMAT, /* date format error */
|
|
PARSE_TIME_ERR_TIMEFORMAT, /* time format error */
|
|
PARSE_TIME_ERR_INVALIDDATE, /* date value error */
|
|
PARSE_TIME_ERR_INVALIDTIME, /* time value error */
|
|
PARSE_TIME_ERR_KEYWORD, /* unknown keyword */
|
|
};
|
|
|
|
/* round values for parse_time_string() */
|
|
enum {
|
|
PARSE_TIME_ROUND_DOWN = -1,
|
|
PARSE_TIME_NO_ROUND = 0,
|
|
PARSE_TIME_ROUND_UP = 1,
|
|
PARSE_TIME_ROUND_UP_INCLUSIVE = 2,
|
|
};
|
|
|
|
/**
|
|
* parse_time_string() - user friendly date and time parser
|
|
* @s: string to parse
|
|
* @t: pointer to time_t to store parsed time in
|
|
* @ref: pointer to time_t containing reference date/time, or NULL
|
|
* @round: PARSE_TIME_NO_ROUND, PARSE_TIME_ROUND_DOWN, or
|
|
* PARSE_TIME_ROUND_UP
|
|
*
|
|
* Parse a date/time string 's' and store the parsed date/time result
|
|
* in 't'.
|
|
*
|
|
* A reference date/time is used for determining the "date/time units"
|
|
* (roughly equivalent to struct tm members) not specified by 's'. If
|
|
* 'ref' is non-NULL, it must contain a pointer to a time_t to be used
|
|
* as reference date/time. Otherwise, the current time is used.
|
|
*
|
|
* If 's' does not specify a full date/time, the 'round' parameter
|
|
* specifies if and how the result should be rounded as follows:
|
|
*
|
|
* PARSE_TIME_NO_ROUND: All date/time units that are not specified
|
|
* by 's' are set to the corresponding unit derived from the
|
|
* reference date/time.
|
|
*
|
|
* PARSE_TIME_ROUND_DOWN: All date/time units that are more accurate
|
|
* than the most accurate unit specified by 's' are set to the
|
|
* smallest valid value for that unit. Rest of the unspecified units
|
|
* are set as in PARSE_TIME_NO_ROUND.
|
|
*
|
|
* PARSE_TIME_ROUND_UP: All date/time units that are more accurate
|
|
* than the most accurate unit specified by 's' are set to the
|
|
* smallest valid value for that unit. The most accurate unit
|
|
* specified by 's' is incremented by one (and this is rolled over
|
|
* to the less accurate units as necessary), unless the most
|
|
* accurate unit is seconds. Rest of the unspecified units are set
|
|
* as in PARSE_TIME_NO_ROUND.
|
|
*
|
|
* PARSE_TIME_ROUND_UP_INCLUSIVE: Same as PARSE_TIME_ROUND_UP, minus
|
|
* one second, unless the most accurate unit specified by 's' is
|
|
* seconds. This is useful for callers that require a value for
|
|
* inclusive comparison of the result.
|
|
*
|
|
* Return 0 (PARSE_TIME_OK) for successfully parsed date/time, or one
|
|
* of PARSE_TIME_ERR_* on error. 't' is not modified on error.
|
|
*/
|
|
int parse_time_string (const char *s, time_t *t, const time_t *ref, int round);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* PARSE_TIME_STRING_H */
|