2 * Copyright notice from original mutt:
3 * Copyright (C) 1996-2000 Michael R. Elkins <me@mutt.org>
5 * This file is part of mutt-ng, see http://www.muttng.org/.
6 * It's licensed under the GNU General Public License,
7 * please see the file GPL in the top level source directory.
19 static const char *next_word (const char *s)
21 while (*s && !ISSPACE (*s))
27 int mutt_check_month (const char *s)
31 for (i = 0; i < 12; i++)
32 if (mutt_strncasecmp (s, Months[i], 3) == 0)
34 return (-1); /* error */
37 static int is_day_name (const char *s)
41 if ((mutt_strlen (s) < 3) || !*(s + 3) || !ISSPACE (*(s + 3)))
43 for (i = 0; i < 7; i++)
44 if (mutt_strncasecmp (s, Weekdays[i], 3) == 0)
50 * A valid message separator looks like:
52 * From [ <return-path> ] <weekday> <month> <day> <time> [ <timezone> ] <year>
55 int is_from (const char *s, char *path, size_t pathlen, time_t * tp)
63 if (mutt_strncmp ("From ", s, 5) != 0)
66 s = next_word (s); /* skip over the From part. */
70 dprint (3, (debugfile, "\nis_from(): parsing: %s", s));
72 if (!is_day_name (s)) {
77 for (p = s; *p && (q || !ISSPACE (*p)); p++) {
91 len = (size_t) (p - s);
92 if (len + 1 > pathlen)
94 memcpy (path, s, len);
96 dprint (3, (debugfile, "is_from(): got return path: %s\n", path));
104 if (!is_day_name (s)) {
105 dprint (1, (debugfile, "is_from(): expected weekday, got: %s\n", s));
114 /* do a quick check to make sure that this isn't really the day of the week.
115 * this could happen when receiving mail from a local user whose login name
116 * is the same as a three-letter abbreviation of the day of the week.
118 if (is_day_name (s)) {
124 /* now we should be on the month. */
125 if ((tm.tm_mon = mutt_check_month (s)) < 0)
132 if (sscanf (s, "%d", &tm.tm_mday) != 1)
140 /* Accept either HH:MM or HH:MM:SS */
141 if (sscanf (s, "%d:%d:%d", &tm.tm_hour, &tm.tm_min, &tm.tm_sec) == 3);
142 else if (sscanf (s, "%d:%d", &tm.tm_hour, &tm.tm_min) == 2)
152 if (isalpha ((unsigned char) *s) || *s == '+' || *s == '-') {
158 * some places have two timezone fields after the time, e.g.
159 * From xxxx@yyyyyyy.fr Wed Aug 2 00:39:12 MET DST 1995
161 if (isalpha ((unsigned char) *s)) {
169 if (sscanf (s, "%d", &yr) != 1)
171 tm.tm_year = yr > 1900 ? yr - 1900 : (yr < 70 ? yr + 100 : yr);
175 "is_from(): month=%d, day=%d, hr=%d, min=%d, sec=%d, yr=%d.\n",
176 tm.tm_mon, tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec,
182 *tp = mutt_mktime (&tm, 0);