74 lines
2.1 KiB
C
74 lines
2.1 KiB
C
#ifndef DATE_H
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#define DATE_H
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/**
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* The date mode type. This has DATE_NORMAL at an explicit "= 0" to
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* accommodate a memset([...], 0, [...]) initialization when "struct
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* date_mode" is used as an embedded struct member, as in the case of
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* e.g. "struct pretty_print_context" and "struct rev_info".
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*/
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enum date_mode_type {
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DATE_NORMAL = 0,
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DATE_HUMAN,
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DATE_RELATIVE,
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DATE_SHORT,
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DATE_ISO8601,
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DATE_ISO8601_STRICT,
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DATE_RFC2822,
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DATE_STRFTIME,
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DATE_RAW,
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DATE_UNIX
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};
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struct date_mode {
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enum date_mode_type type;
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int local;
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const char *strftime_fmt;
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};
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#define DATE_MODE_INIT { \
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.type = DATE_NORMAL, \
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}
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/**
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* Convenience helper for passing a constant type, like:
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*
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* show_date(t, tz, DATE_MODE(NORMAL));
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*/
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#define DATE_MODE(t) date_mode_from_type(DATE_##t)
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struct date_mode date_mode_from_type(enum date_mode_type type);
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/**
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* Format <'time', 'timezone'> into static memory according to 'mode'
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* and return it. The mode is an initialized "struct date_mode"
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* (usually from the DATE_MODE() macro).
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*/
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const char *show_date(timestamp_t time, int timezone, struct date_mode mode);
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/**
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* Parse a date format for later use with show_date().
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*
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* When the "date_mode_type" is DATE_STRFTIME the "strftime_fmt"
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* member of "struct date_mode" will be a malloc()'d format string to
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* be used with strbuf_addftime(), in which case you'll need to call
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* date_mode_release() later.
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*/
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void parse_date_format(const char *format, struct date_mode *mode);
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/**
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* Release a "struct date_mode", currently only required if
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* parse_date_format() has parsed a "DATE_STRFTIME" format.
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*/
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void date_mode_release(struct date_mode *mode);
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void show_date_relative(timestamp_t time, struct strbuf *timebuf);
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int parse_date(const char *date, struct strbuf *out);
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int parse_date_basic(const char *date, timestamp_t *timestamp, int *offset);
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int parse_expiry_date(const char *date, timestamp_t *timestamp);
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void datestamp(struct strbuf *out);
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#define approxidate(s) approxidate_careful((s), NULL)
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timestamp_t approxidate_careful(const char *, int *);
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int date_overflows(timestamp_t date);
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time_t tm_to_time_t(const struct tm *tm);
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#endif
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