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Implement GNU extension strptime_l 

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This commit is contained in:
Corinna Vinschen 2016-08-23 17:42:47 +02:00
parent e636fe3d48
commit 0ecb846d2b
4 changed files with 94 additions and 66 deletions
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5
newlib/libc/include/time.h
View File

@ -92,6 +92,11 @@ char *_EXFUN(strptime, (const char *__restrict,
const char *__restrict,
struct tm *__restrict));
#endif
#if __GNU_VISIBLE
char *strptime_l (const char *__restrict, const char *__restrict,
struct tm *__restrict, locale_t);
#endif
#if __POSIX_VISIBLE
_VOID _EXFUN(tzset, (_VOID));
#endif

80
newlib/libc/time/strptime.c
View File

@ -30,6 +30,7 @@
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
#define _GNU_SOURCE
#include <stddef.h>
#include <stdio.h>
#include <time.h>
@ -68,14 +69,15 @@ is_leap_year (int year)
/* Needed for strptime. */
static int
match_string (const char *__restrict *buf, const char * const*strs)
match_string (const char *__restrict *buf, const char * const*strs,
locale_t locale)
{
int i = 0;
for (i = 0; strs[i] != NULL; ++i) {
int len = strlen (strs[i]);
if (strncasecmp (*buf, strs[i], len) == 0) {
if (strncasecmp_l (*buf, strs[i], len, locale) == 0) {
*buf += len;
return i;
}
@ -148,25 +150,20 @@ set_week_number_mon4 (struct tm *timeptr, int wnum)
}
}
/* strptime: roken */
//extern "C"
char *
//strptime (const char *buf, const char *format, struct tm *timeptr)
_DEFUN (strptime, (buf, format, timeptr),
_CONST char *__restrict buf _AND
_CONST char *__restrict format _AND
struct tm *__restrict timeptr)
strptime_l (const char *buf, const char *format, struct tm *timeptr,
locale_t locale)
{
char c;
int ymd = 0;
const struct lc_time_T *_CurrentTimeLocale = __get_current_time_locale ();
const struct lc_time_T *_CurrentTimeLocale = __get_time_locale (locale);
for (; (c = *format) != '\0'; ++format) {
char *s;
int ret;
if (isspace ((unsigned char) c)) {
while (isspace ((unsigned char) *buf))
if (isspace_l ((unsigned char) c, locale)) {
while (isspace_l ((unsigned char) *buf, locale))
++buf;
} else if (c == '%' && format[1] != '\0') {
c = *++format;
@ -174,21 +171,21 @@ _DEFUN (strptime, (buf, format, timeptr),
c = *++format;
switch (c) {
case 'A' :
ret = match_string (&buf, _ctloc (weekday));
ret = match_string (&buf, _ctloc (weekday), locale);
if (ret < 0)
return NULL;
timeptr->tm_wday = ret;
ymd |= SET_WDAY;
break;
case 'a' :
ret = match_string (&buf, _ctloc (wday));
ret = match_string (&buf, _ctloc (wday), locale);
if (ret < 0)
return NULL;
timeptr->tm_wday = ret;
ymd |= SET_WDAY;
break;
case 'B' :
ret = match_string (&buf, _ctloc (month));
ret = match_string (&buf, _ctloc (month), locale);
if (ret < 0)
return NULL;
timeptr->tm_mon = ret;
@ -196,14 +193,14 @@ _DEFUN (strptime, (buf, format, timeptr),
break;
case 'b' :
case 'h' :
ret = match_string (&buf, _ctloc (mon));
ret = match_string (&buf, _ctloc (mon), locale);
if (ret < 0)
return NULL;
timeptr->tm_mon = ret;
ymd |= SET_MON;
break;
case 'C' :
ret = strtol (buf, &s, 10);
ret = strtol_l (buf, &s, 10, locale);
if (s == buf)
return NULL;
timeptr->tm_year = (ret * 100) - tm_year_base;
@ -211,14 +208,14 @@ _DEFUN (strptime, (buf, format, timeptr),
ymd |= SET_YEAR;
break;
case 'c' : /* %a %b %e %H:%M:%S %Y */
s = strptime (buf, _ctloc (c_fmt), timeptr);
s = strptime_l (buf, _ctloc (c_fmt), timeptr, locale);
if (s == NULL)
return NULL;
buf = s;
ymd |= SET_WDAY | SET_YMD;
break;
case 'D' : /* %m/%d/%y */
s = strptime (buf, "%m/%d/%y", timeptr);
s = strptime_l (buf, "%m/%d/%y", timeptr, locale);
if (s == NULL)
return NULL;
buf = s;
@ -226,7 +223,7 @@ _DEFUN (strptime, (buf, format, timeptr),
break;
case 'd' :
case 'e' :
ret = strtol (buf, &s, 10);
ret = strtol_l (buf, &s, 10, locale);
if (s == buf)
return NULL;
timeptr->tm_mday = ret;
@ -235,7 +232,7 @@ _DEFUN (strptime, (buf, format, timeptr),
break;
case 'H' :
case 'k' :
ret = strtol (buf, &s, 10);
ret = strtol_l (buf, &s, 10, locale);
if (s == buf)
return NULL;
timeptr->tm_hour = ret;
@ -243,7 +240,7 @@ _DEFUN (strptime, (buf, format, timeptr),
break;
case 'I' :
case 'l' :
ret = strtol (buf, &s, 10);
ret = strtol_l (buf, &s, 10, locale);
if (s == buf)
return NULL;
if (ret == 12)
@ -253,7 +250,7 @@ _DEFUN (strptime, (buf, format, timeptr),
buf = s;
break;
case 'j' :
ret = strtol (buf, &s, 10);
ret = strtol_l (buf, &s, 10, locale);
if (s == buf)
return NULL;
timeptr->tm_yday = ret - 1;
@ -261,7 +258,7 @@ _DEFUN (strptime, (buf, format, timeptr),
ymd |= SET_YDAY;
break;
case 'm' :
ret = strtol (buf, &s, 10);
ret = strtol_l (buf, &s, 10, locale);
if (s == buf)
return NULL;
timeptr->tm_mon = ret - 1;
@ -269,7 +266,7 @@ _DEFUN (strptime, (buf, format, timeptr),
ymd |= SET_MON;
break;
case 'M' :
ret = strtol (buf, &s, 10);
ret = strtol_l (buf, &s, 10, locale);
if (s == buf)
return NULL;
timeptr->tm_min = ret;
@ -282,7 +279,7 @@ _DEFUN (strptime, (buf, format, timeptr),
return NULL;
break;
case 'p' :
ret = match_string (&buf, _ctloc (am_pm));
ret = match_string (&buf, _ctloc (am_pm), locale);
if (ret < 0)
return NULL;
if (timeptr->tm_hour == 0) {
@ -292,19 +289,19 @@ _DEFUN (strptime, (buf, format, timeptr),
timeptr->tm_hour += 12;
break;
case 'r' : /* %I:%M:%S %p */
s = strptime (buf, _ctloc (ampm_fmt), timeptr);
s = strptime_l (buf, _ctloc (ampm_fmt), timeptr, locale);
if (s == NULL)
return NULL;
buf = s;
break;
case 'R' : /* %H:%M */
s = strptime (buf, "%H:%M", timeptr);
s = strptime_l (buf, "%H:%M", timeptr, locale);
if (s == NULL)
return NULL;
buf = s;
break;
case 'S' :
ret = strtol (buf, &s, 10);
ret = strtol_l (buf, &s, 10, locale);
if (s == buf)
return NULL;
timeptr->tm_sec = ret;
@ -317,13 +314,13 @@ _DEFUN (strptime, (buf, format, timeptr),
return NULL;
break;
case 'T' : /* %H:%M:%S */
s = strptime (buf, "%H:%M:%S", timeptr);
s = strptime_l (buf, "%H:%M:%S", timeptr, locale);
if (s == NULL)
return NULL;
buf = s;
break;
case 'u' :
ret = strtol (buf, &s, 10);
ret = strtol_l (buf, &s, 10, locale);
if (s == buf)
return NULL;
timeptr->tm_wday = ret - 1;
@ -331,7 +328,7 @@ _DEFUN (strptime, (buf, format, timeptr),
ymd |= SET_WDAY;
break;
case 'w' :
ret = strtol (buf, &s, 10);
ret = strtol_l (buf, &s, 10, locale);
if (s == buf)
return NULL;
timeptr->tm_wday = ret;
@ -339,7 +336,7 @@ _DEFUN (strptime, (buf, format, timeptr),
ymd |= SET_WDAY;
break;
case 'U' :
ret = strtol (buf, &s, 10);
ret = strtol_l (buf, &s, 10, locale);
if (s == buf)
return NULL;
set_week_number_sun (timeptr, ret);
@ -347,7 +344,7 @@ _DEFUN (strptime, (buf, format, timeptr),
ymd |= SET_YDAY;
break;
case 'V' :
ret = strtol (buf, &s, 10);
ret = strtol_l (buf, &s, 10, locale);
if (s == buf)
return NULL;
set_week_number_mon4 (timeptr, ret);
@ -355,7 +352,7 @@ _DEFUN (strptime, (buf, format, timeptr),
ymd |= SET_YDAY;
break;
case 'W' :
ret = strtol (buf, &s, 10);
ret = strtol_l (buf, &s, 10, locale);
if (s == buf)
return NULL;
set_week_number_mon (timeptr, ret);
@ -363,20 +360,20 @@ _DEFUN (strptime, (buf, format, timeptr),
ymd |= SET_YDAY;
break;
case 'x' :
s = strptime (buf, _ctloc (x_fmt), timeptr);
s = strptime_l (buf, _ctloc (x_fmt), timeptr, locale);
if (s == NULL)
return NULL;
buf = s;
ymd |= SET_YMD;
break;
case 'X' :
s = strptime (buf, _ctloc (X_fmt), timeptr);
s = strptime_l (buf, _ctloc (X_fmt), timeptr, locale);
if (s == NULL)
return NULL;
buf = s;
break;
case 'y' :
ret = strtol (buf, &s, 10);
ret = strtol_l (buf, &s, 10, locale);
if (s == buf)
return NULL;
if (ret < 70)
@ -387,7 +384,7 @@ _DEFUN (strptime, (buf, format, timeptr),
ymd |= SET_YEAR;
break;
case 'Y' :
ret = strtol (buf, &s, 10);
ret = strtol_l (buf, &s, 10, locale);
if (s == buf)
return NULL;
timeptr->tm_year = ret - tm_year_base;
@ -475,3 +472,8 @@ _DEFUN (strptime, (buf, format, timeptr),
return (char *)buf;
}
char *
strptime (const char *buf, const char *format, struct tm *timeptr)
{
return strptime_l (buf, format, timeptr, __get_current_locale ());
}

1
winsup/cygwin/common.din
View File

@ -1364,6 +1364,7 @@ strndup SIGFE
strnlen NOSIGFE
strpbrk NOSIGFE
strptime SIGFE
strptime_l SIGFE
strrchr NOSIGFE
strsep NOSIGFE
strsignal SIGFE

74
winsup/cygwin/libc/strptime.cc
View File

@ -102,7 +102,7 @@ free_era_info (era_info_t *era_info)
}
static era_info_t *
get_era_info (const char *era)
get_era_info (const char *era, locale_t locale)
{
char *c;
era_info_t *ei = NULL;
@ -122,14 +122,14 @@ get_era_info (const char *era)
ei[cur].num = 1;
ei[cur].dir = (*era == '+') ? 1 : -1;
era += 2;
ei[cur].offset = strtol (era, &c, 10);
ei[cur].offset = strtol_l (era, &c, 10, locale);
era = c + 1;
ei[cur].start.tm_year = strtol (era, &c, 10);
ei[cur].start.tm_year = strtol_l (era, &c, 10, locale);
/* Adjust offset for negative gregorian dates. */
if (ei[cur].start.tm_year < 0)
++ei[cur].start.tm_year;
ei[cur].start.tm_mon = strtol (c + 1, &c, 10);
ei[cur].start.tm_mday = strtol (c + 1, &c, 10);
ei[cur].start.tm_mon = strtol_l (c + 1, &c, 10, locale);
ei[cur].start.tm_mday = strtol_l (c + 1, &c, 10, locale);
ei[cur].start.tm_hour = ei[cur].start.tm_min = ei[cur].start.tm_sec = 0;
era = c + 1;
if (era[0] == '-' && era[1] == '*')
@ -151,12 +151,12 @@ get_era_info (const char *era)
}
else
{
ei[cur].end.tm_year = strtol (era, &c, 10);
ei[cur].end.tm_year = strtol_l (era, &c, 10, locale);
/* Adjust offset for negative gregorian dates. */
if (ei[cur].end.tm_year < 0)
++ei[cur].end.tm_year;
ei[cur].end.tm_mon = strtol (c + 1, &c, 10);
ei[cur].end.tm_mday = strtol (c + 1, &c, 10);
ei[cur].end.tm_mon = strtol_l (c + 1, &c, 10, locale);
ei[cur].end.tm_mday = strtol_l (c + 1, &c, 10, locale);
ei[cur].end.tm_mday = 31;
ei[cur].end.tm_hour = 23;
ei[cur].end.tm_min = ei[cur].end.tm_sec = 59;
@ -305,11 +305,13 @@ static const unsigned char *conv_num(const unsigned char *, int *, uint, uint,
alt_digits_t *);
static const unsigned char *find_string(const unsigned char *, int *,
const char * const *,
const char * const *, int);
const char * const *, int,
locale_t);
static char *
__strptime(const char *buf, const char *fmt, struct tm *tm,
era_info_t **era_info, alt_digits_t **alt_digits)
era_info_t **era_info, alt_digits_t **alt_digits,
locale_t locale)
{
unsigned char c;
const unsigned char *bp;
@ -323,8 +325,7 @@ __strptime(const char *buf, const char *fmt, struct tm *tm,
int ymd = 0;
bp = (const unsigned char *)buf;
const struct lc_time_T *_CurrentTimeLocale =
__get_current_time_locale ();
const struct lc_time_T *_CurrentTimeLocale = __get_time_locale (locale);
while (bp != NULL && (c = *fmt++) != '\0') {
/* Clear `alternate' modifier prior to new conversion. */
@ -334,8 +335,8 @@ __strptime(const char *buf, const char *fmt, struct tm *tm,
i = 0;
/* Eat up white-space. */
if (isspace(c)) {
while (isspace(*bp))
if (isspace_l(c, locale)) {
while (isspace_l(*bp, locale))
bp++;
continue;
}
@ -360,7 +361,8 @@ literal:
LEGAL_ALT(0);
alt_format |= ALT_E;
if (!*era_info && *_CurrentTimeLocale->era)
*era_info = get_era_info (_CurrentTimeLocale->era);
*era_info = get_era_info (_CurrentTimeLocale->era,
locale);
goto again;
case 'O': /* "%O?" alternative conversion modifier. */
@ -385,7 +387,7 @@ literal:
LEGAL_ALT(0);
{
char *end;
width = strtoul (fmt - 1, &end, 10);
width = strtoul_l (fmt - 1, &end, 10, locale);
fmt = (const char *) end;
goto again;
}
@ -410,7 +412,8 @@ literal:
LEGAL_ALT(0);
ymd |= SET_YMD;
char *tmp = __strptime ((const char *) bp, "%Y-%m-%d",
tm, era_info, alt_digits);
tm, era_info, alt_digits,
locale);
if (tmp && (uint) (tmp - (char *) bp) > width)
return NULL;
bp = (const unsigned char *) tmp;
@ -446,7 +449,7 @@ literal:
recurse:
bp = (const unsigned char *)
__strptime((const char *)bp, new_fmt, tm,
era_info, alt_digits);
era_info, alt_digits, locale);
continue;
/*
@ -455,7 +458,7 @@ literal:
case 'A': /* The day of week, using the locale's form. */
case 'a':
bp = find_string(bp, &tm->tm_wday, _ctloc(weekday),
_ctloc(wday), 7);
_ctloc(wday), 7, locale);
LEGAL_ALT(0);
ymd |= SET_WDAY;
continue;
@ -464,7 +467,7 @@ literal:
case 'b':
case 'h':
bp = find_string(bp, &tm->tm_mon, _ctloc(month),
_ctloc(mon), 12);
_ctloc(mon), 12, locale);
LEGAL_ALT(0);
ymd |= SET_WDAY;
continue;
@ -554,7 +557,8 @@ literal:
continue;
case 'p': /* The locale's equivalent of AM/PM. */
bp = find_string(bp, &i, _ctloc(am_pm), NULL, 2);
bp = find_string(bp, &i, _ctloc(am_pm), NULL, 2,
locale);
if (tm->tm_hour > 11)
return NULL;
tm->tm_hour += i * 12;
@ -604,7 +608,7 @@ literal:
char *tmp = __strptime ((const char *) bp,
tmp_ei->era_Y,
tm, &tmp_ei,
alt_digits);
alt_digits, locale);
if (tmp)
{
bp = (const unsigned char *) tmp;
@ -675,7 +679,7 @@ literal:
ep = find_string(bp, &i,
(const char * const *)tzname,
NULL, 2);
NULL, 2, locale);
if (ep != NULL) {
tm->tm_isdst = i;
#ifdef TM_GMTOFF
@ -696,7 +700,7 @@ literal:
*/
case 'n': /* Any kind of white-space. */
case 't':
while (isspace(*bp))
while (isspace_l(*bp, locale))
bp++;
LEGAL_ALT(0);
continue;
@ -775,13 +779,28 @@ literal:
return (char *) bp;
}
char *
strptime_l (const char *__restrict buf, const char *__restrict fmt,
struct tm *__restrict tm, locale_t locale)
{
era_info_t *era_info = NULL;
alt_digits_t *alt_digits = NULL;
char *ret = __strptime (buf, fmt, tm, &era_info, &alt_digits, locale);
if (era_info)
free_era_info (era_info);
if (alt_digits)
free_alt_digits (alt_digits);
return ret;
}
char *
strptime (const char *__restrict buf, const char *__restrict fmt,
struct tm *__restrict tm)
{
era_info_t *era_info = NULL;
alt_digits_t *alt_digits = NULL;
char *ret = __strptime (buf, fmt, tm, &era_info, &alt_digits);
char *ret = __strptime (buf, fmt, tm, &era_info, &alt_digits,
__get_current_locale ());
if (era_info)
free_era_info (era_info);
if (alt_digits)
@ -824,7 +843,7 @@ conv_num(const unsigned char *buf, int *dest, uint llim, uint ulim,
static const unsigned char *
find_string(const unsigned char *bp, int *tgt, const char * const *n1,
const char * const *n2, int c)
const char * const *n2, int c, locale_t locale)
{
int i;
unsigned int len;
@ -833,7 +852,8 @@ find_string(const unsigned char *bp, int *tgt, const char * const *n1,
for (; n1 != NULL; n1 = n2, n2 = NULL) {
for (i = 0; i < c; i++, n1++) {
len = strlen(*n1);
if (strncasecmp(*n1, (const char *)bp, len) == 0) {
if (strncasecmp_l(*n1, (const char *)bp, len,
locale) == 0) {
*tgt = i;
return bp + len;
}