apply: remove epoch date from regex

We check the date of epoch timestamp candidates already with starts_with(). Move beyond that part using skip_prefix() instead of checking it again using a regular expression. Also group the minutes part, so that we can access them using a substring match instead of using a magic number. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>

René Scharfe committed Aug 25, 2017 at 21:06 UTC 0db3dc75f30239aa3b36071c7b9ff21c16ba449a
1 file changed +5 -7
apply.c
+5 -7
@@ -812,9 +812,7 @@ static int has_epoch_timestamp(const char *nameline)
812 * 1970-01-01, and the seconds part must be "00".
813 */
814 const char stamp_regexp[] =
815 - "^(1969-12-31|1970-01-01)"
816 - " "
817 - "[0-2][0-9]:[0-5][0-9]:00(\\.0+)?"
815 + "^[0-2][0-9]:([0-5][0-9]):00(\\.0+)?"
816 " "
817 "([-+][0-2][0-9]:?[0-5][0-9])\n";
818 const char *timestamp = NULL, *cp, *colon;
@@ -834,9 +832,9 @@ static int has_epoch_timestamp(const char *nameline)
832 * YYYY-MM-DD hh:mm:ss must be from either 1969-12-31
833 * (west of GMT) or 1970-01-01 (east of GMT)
834 */
837 - if (starts_with(timestamp, "1969-12-31"))
835 + if (skip_prefix(timestamp, "1969-12-31 ", &timestamp))
836 epoch_hour = 24;
839 - else if (starts_with(timestamp, "1970-01-01"))
837 + else if (skip_prefix(timestamp, "1970-01-01 ", &timestamp))
838 epoch_hour = 0;
839 else
840 return 0;
@@ -858,8 +856,8 @@ static int has_epoch_timestamp(const char *nameline)
856 return 0;
857 }
858
861 - hour = strtol(timestamp + 11, NULL, 10);
862 - minute = strtol(timestamp + 14, NULL, 10);
859 + hour = strtol(timestamp, NULL, 10);
860 + minute = strtol(timestamp + m[1].rm_so, NULL, 10);
861
862 zoneoffset = strtol(timestamp + m[3].rm_so + 1, (char **) &colon, 10);
863 if (*colon == ':')