implementation (this is because all processor inherant
boundaries are multiples of 4. */
- testb $3, %esi /* correctly aligned ? */
+ testl $3, %esi /* correctly aligned ? */
jz L19 /* yes => begin loop */
movb (%esi), %dl /* load byte in question (we need it twice) */
cmpb %dl, %cl /* compare byte */
jz L2 /* yes => return NULL */
incl %esi /* increment pointer */
- testb $3, %esi /* correctly aligned ? */
+ testl $3, %esi /* correctly aligned ? */
jz L19 /* yes => begin loop */
movb (%esi), %dl /* load byte in question (we need it twice) */
cmpb %dl, %cl /* compare byte */
jz L2 /* yes => return NULL */
incl %esi /* increment pointer */
- testb $3, %esi /* correctly aligned ? */
+ testl $3, %esi /* correctly aligned ? */
jz L19 /* yes => begin loop */
movb (%esi), %dl /* load byte in question (we need it twice) */
cmpb %dl, %cl /* compare byte */
--- /dev/null
+/* strptime - Convert a string representation of time to a time value.
+Copyright (C) 1996 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
+
+#include <ctype.h>
+#include <langinfo.h>
+#include <limits.h>
+#include <string.h>
+#include <time.h>
+
+#include "../locale/localeinfo.h"
+
+
+#define match_char(ch1, ch2) if (ch1 != ch2) return NULL
+#define match_string(cs1, s2) \
+ ({ size_t len = strlen (cs1); \
+ int result = strncasecmp (cs1, s2, len) == 0; \
+ if (result) s2 += len; \
+ result; })
+/* We intentionally do not use isdigit() for testing because this will
+ lead to problems with the wide character version. */
+#define get_number(from, to) \
+ do { \
+ val = 0; \
+ if (*rp < '0' || *rp > '9') \
+ return NULL; \
+ do { \
+ val *= 10; \
+ val += *rp++ - '0'; \
+ } while (val * 10 <= to && *rp >= '0' && *rp <= '9'); \
+ if (val < from || val > to) \
+ return NULL; \
+ } while (0)
+#define get_alt_number(from, to) \
+ do { \
+ const char *alts = _NL_CURRENT (LC_TIME, ALT_DIGITS); \
+ val = 0; \
+ while (*alts != '\0') \
+ { \
+ size_t len = strlen (alts); \
+ if (strncasecmp (alts, rp, len) == 0) \
+ break; \
+ alts = strchr (alts, '\0') + 1; \
+ ++val; \
+ } \
+ if (*alts == '\0') \
+ return NULL; \
+ } while (0)
+#define recursive(new_fmt) \
+ do { \
+ if (*new_fmt == '\0') \
+ return NULL; \
+ rp = strptime (rp, new_fmt, tm); \
+ if (rp == NULL) \
+ return NULL; \
+ } while (0)
+
+
+char *
+strptime (const char *buf, const char *format, struct tm *tm)
+{
+ const char *rp;
+ const char *fmt;
+ int cnt;
+ size_t val;
+ int have_I, is_pm;
+
+ rp = buf;
+ fmt = format;
+ have_I = is_pm = 0;
+
+ while (*fmt != '\0')
+ {
+ /* A white space in the format string matches 0 more or white
+ space in the input string. */
+ if (isspace (*fmt))
+ {
+ while (isspace (*rp))
+ ++rp;
+ ++fmt;
+ continue;
+ }
+
+ /* Any character but `%' must be matched by the same character
+ in the iput string. */
+ if (*fmt != '%')
+ {
+ match_char (*fmt++, *rp++);
+ continue;
+ }
+
+ ++fmt;
+ switch (*fmt++)
+ {
+ case '%':
+ /* Match the `%' character itself. */
+ match_char ('%', *rp++);
+ break;
+ case 'a':
+ case 'A':
+ /* Match day of week. */
+ for (cnt = 0; cnt < 7; ++cnt)
+ {
+ if (match_string (_NL_CURRENT (LC_TIME, ABDAY_1 + cnt), rp))
+ break;
+ if (match_string (_NL_CURRENT (LC_TIME, DAY_1 + cnt), rp))
+ break;
+ }
+ if (cnt == 7)
+ /* Does not match a weekday name. */
+ return NULL;
+ tm->tm_wday = cnt;
+ break;
+ case 'b':
+ case 'B':
+ case 'h':
+ /* Match month name. */
+ for (cnt = 0; cnt < 12; ++cnt)
+ {
+ if (match_string (_NL_CURRENT (LC_TIME, ABMON_1 + cnt), rp))
+ break;
+ if (match_string (_NL_CURRENT (LC_TIME, MON_1 + cnt), rp))
+ break;
+ }
+ if (cnt == 12)
+ /* Does not match a month name. */
+ return NULL;
+ tm->tm_mon = cnt;
+ break;
+ case 'c':
+ /* Match locale's date and time format. */
+ recursive (_NL_CURRENT (LC_TIME, D_T_FMT));
+ break;
+ case 'C':
+ /* Match century number. */
+ get_number (0, 99);
+ /* We don't need the number. */
+ break;
+ case 'd':
+ case 'e':
+ /* Match day of month. */
+ get_number (1, 31);
+ tm->tm_mday = val;
+ break;
+ case 'D':
+ /* Match standard day format. */
+ recursive ("%m/%d/%y");
+ break;
+ case 'H':
+ /* Match hour in 24-hour clock. */
+ get_number (0, 23);
+ tm->tm_hour = val;
+ have_I = 0;
+ break;
+ case 'I':
+ /* Match hour in 12-hour clock. */
+ get_number (1, 12);
+ tm->tm_hour = val - 1;
+ have_I = 1;
+ break;
+ case 'j':
+ /* Match day number of year. */
+ get_number (1, 366);
+ tm->tm_yday = val - 1;
+ break;
+ case 'm':
+ /* Match number of month. */
+ get_number (1, 12);
+ tm->tm_mon = val - 1;
+ break;
+ case 'M':
+ /* Match minute. */
+ get_number (0, 59);
+ tm->tm_min = val;
+ break;
+ case 'n':
+ case 't':
+ /* Match any white space. */
+ while (isspace (*rp))
+ ++rp;
+ break;
+ case 'p':
+ /* Match locale's equivalent of AM/PM. */
+ if (match_string (_NL_CURRENT (LC_TIME, AM_STR), rp))
+ break;
+ if (match_string (_NL_CURRENT (LC_TIME, PM_STR), rp))
+ {
+ is_pm = 1;
+ break;
+ }
+ return NULL;
+ case 'r':
+ recursive (_NL_CURRENT (LC_TIME, T_FMT_AMPM));
+ break;
+ case 'R':
+ recursive ("%H:%M");
+ break;
+ case 'S':
+ get_number (0, 61);
+ tm->tm_sec = val;
+ break;
+ case 'T':
+ recursive ("%H:%M:%S");
+ break;
+ case 'U':
+ case 'V':
+ case 'W':
+ get_number (0, 53);
+ /* XXX This cannot determine any field in TM. */
+ break;
+ case 'w':
+ /* Match number of weekday. */
+ get_number (0, 6);
+ tm->tm_wday = val;
+ break;
+ case 'x':
+ recursive (_NL_CURRENT (LC_TIME, D_FMT));
+ break;
+ case 'X':
+ recursive (_NL_CURRENT (LC_TIME, T_FMT));
+ break;
+ case 'y':
+ /* Match year within century. */
+ get_number (0, 99);
+ tm->tm_year = val;
+ break;
+ case 'Y':
+ /* Match year including century number. */
+ get_number (0, INT_MAX);
+ tm->tm_year = val - (val >= 2000 ? 2000 : 1900);
+ break;
+ case 'Z':
+ /* XXX How to handle this? */
+ break;
+ case 'E':
+ switch (*fmt++)
+ {
+ case 'c':
+ /* Match locale's alternate date and time format. */
+ recursive (_NL_CURRENT (LC_TIME, ERA_D_T_FMT));
+ break;
+ case 'C':
+ case 'y':
+ case 'Y':
+ /* Match name of base year in locale's alternate
+ representation. */
+ /* XXX This is currently not implemented. It should
+ use the value _NL_CURRENT (LC_TIME, ERA) but POSIX
+ leaves this implementation defined and we haven't
+ figured out how to do it yet. */
+ break;
+ case 'x':
+ recursive (_NL_CURRENT (LC_TIME, ERA_D_FMT));
+ break;
+ case 'X':
+ recursive (_NL_CURRENT (LC_TIME, ERA_T_FMT));
+ break;
+ default:
+ return NULL;
+ }
+ break;
+ case 'O':
+ switch (*fmt++)
+ {
+ case 'd':
+ case 'e':
+ /* Match day of month using alternate numeric symbols. */
+ get_alt_number (1, 31);
+ tm->tm_mday = val;
+ break;
+ case 'H':
+ /* Match hour in 24-hour clock using alternate numeric
+ symbols. */
+ get_alt_number (0, 23);
+ tm->tm_hour = val;
+ have_I = 0;
+ break;
+ case 'I':
+ /* Match hour in 12-hour clock using alternate numeric
+ symbols. */
+ get_alt_number (1, 12);
+ tm->tm_hour = val - 1;
+ have_I = 1;
+ break;
+ case 'm':
+ /* Match month using alternate numeric symbols. */
+ get_alt_number (1, 12);
+ tm->tm_mon = val - 1;
+ break;
+ case 'M':
+ /* Match minutes using alternate numeric symbols. */
+ get_alt_number (0, 59);
+ tm->tm_min = val;
+ break;
+ case 'S':
+ /* Match seconds using alternate numeric symbols. */
+ get_alt_number (0, 61);
+ tm->tm_sec = val;
+ break;
+ case 'U':
+ case 'V':
+ case 'W':
+ get_alt_number (0, 53);
+ /* XXX This cannot determine any field in TM. */
+ break;
+ case 'w':
+ /* Match number of weekday using alternate numeric symbols. */
+ get_alt_number (0, 6);
+ tm->tm_wday = val;
+ break;
+ case 'y':
+ /* Match year within century using alternate numeric symbols. */
+ get_alt_number (0, 99);
+ break;
+ default:
+ return NULL;
+ }
+ break;
+ default:
+ return NULL;
+ }
+ }
+
+ if (have_I && is_pm)
+ tm->tm_hour += 12;
+
+ return (char *) rp;
+}
projects / platform / upstream / glibc.git / commitdiff