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Bash-4.3 distribution sources and documentation

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This commit is contained in:
Chet Ramey
2014-02-26 09:36:43 -05:00
parent 4539d736f1
commit ac50fbac37
497 changed files with 129395 additions and 87598 deletions
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155
lib/sh/strftime.c
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@@ -38,6 +38,7 @@
* Updated September, 2000
* Updated December, 2001
* Updated January, 2011
* Updated April, 2012
*
* Fixes from ado@elsie.nci.nih.gov,
* February 1991, May 1992
@@ -75,6 +76,7 @@
#define VMS_EXT 1 /* include %v for VMS date format */
#define HPUX_EXT 1 /* non-conflicting stuff in HP-UX date */
#define POSIX_SEMANTICS 1 /* call tzset() if TZ changes */
#define POSIX_2008 1 /* flag and fw for C, F, G, Y formats */
#undef strchr /* avoid AIX weirdness */
@@ -96,27 +98,25 @@ static int iso8601wknum(const struct tm *timeptr);
#define range(low, item, hi) max(low, min(item, hi))
#if !defined(OS2) && !defined(MSDOS) && defined(HAVE_TZNAME)
/* Whew! This stuff is a mess. */
#if !defined(OS2) && !defined(MSDOS) && !defined(__CYGWIN__) && defined(HAVE_TZNAME)
extern char *tzname[2];
extern int daylight;
#if defined(SOLARIS) || defined(mips) || defined (M_UNIX)
extern long int timezone, altzone;
#else
# if defined (HPUX)
# if defined (HPUX) || defined(__hpux)
extern long int timezone;
# else
# if !defined(__CYGWIN__)
extern int timezone, altzone;
# endif /* !HPUX */
#endif /* !SOLARIS && !mips && !M_UNIX */
# endif
# endif
#endif
#endif
#undef min /* just in case */
/* format for %+ -- currently unused */
#ifndef NATIONAL_FORMAT
#define NATIONAL_FORMAT "%a %b %e %H:%M:%S %Z %Y"
#endif
/* min --- return minimum of two numbers */
static inline int
@@ -135,6 +135,34 @@ max(int a, int b)
return (a > b ? a : b);
}
#ifdef POSIX_2008
/* iso_8601_2000_year --- format a year per ISO 8601:2000 as in 1003.1 */
static void
iso_8601_2000_year(char *buf, int year, size_t fw)
{
int extra;
char sign = '\0';
if (year >= -9999 && year <= 9999) {
sprintf(buf, "%0*d", (int) fw, year);
return;
}
/* now things get weird */
if (year > 9999) {
sign = '+';
} else {
sign = '-';
year = -year;
}
extra = year / 10000;
year %= 10000;
sprintf(buf, "%c_%04d_%d", sign, extra, year);
}
#endif /* POSIX_2008 */
/* strftime --- produce formatted time */
size_t
@@ -155,12 +183,19 @@ strftime(char *s, size_t maxsize, const char *format, const struct tm *timeptr)
#ifndef HAVE_TM_ZONE
#ifndef HAVE_TM_NAME
#ifndef HAVE_TZNAME
#ifndef __CYGWIN__
extern char *timezone();
struct timeval tv;
struct timezone zone;
#endif /* __CYGWIN__ */
#endif /* HAVE_TZNAME */
#endif /* HAVE_TM_NAME */
#endif /* HAVE_TM_ZONE */
#ifdef POSIX_2008
int pad;
size_t fw;
char flag;
#endif /* POSIX_2008 */
/* various tables, useful in North America */
static const char *days_a[] = {
@@ -234,6 +269,40 @@ strftime(char *s, size_t maxsize, const char *format, const struct tm *timeptr)
*s++ = *format;
continue;
}
#ifdef POSIX_2008
pad = '\0';
fw = 0;
flag = '\0';
switch (*++format) {
case '+':
flag = '+';
/* fall through */
case '0':
pad = '0';
format++;
break;
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
break;
default:
format--;
goto again;
}
for (; isdigit(*format); format++) {
fw = fw * 10 + (*format - '0');
}
format--;
#endif /* POSIX_2008 */
again:
switch (*++format) {
case '\0':
@@ -285,8 +354,19 @@ strftime(char *s, size_t maxsize, const char *format, const struct tm *timeptr)
break;
case 'C':
#ifdef POSIX_2008
if (pad != '\0' && fw > 0) {
size_t min_fw = (flag ? 3 : 2);
fw = max(fw, min_fw);
sprintf(tbuf, flag
? "%+0*ld"
: "%0*ld", (int) fw,
(timeptr->tm_year + 1900L) / 100);
} else
#endif /* POSIX_2008 */
century:
sprintf(tbuf, "%02ld", (timeptr->tm_year + 1900L) / 100);
sprintf(tbuf, "%02ld", (timeptr->tm_year + 1900L) / 100);
break;
case 'd': /* day of the month, 01 - 31 */
@@ -307,7 +387,30 @@ strftime(char *s, size_t maxsize, const char *format, const struct tm *timeptr)
goto again;
case 'F': /* ISO 8601 date representation */
{
#ifdef POSIX_2008
/*
* Field width for %F is for the whole thing.
* It must be at least 10.
*/
char m_d[10];
strftime(m_d, sizeof m_d, "-%m-%d", timeptr);
size_t min_fw = 10;
if (pad != '\0' && fw > 0) {
fw = max(fw, min_fw);
} else {
fw = min_fw;
}
fw -= 6; /* -XX-XX at end are invariant */
iso_8601_2000_year(tbuf, timeptr->tm_year + 1900, fw);
strcat(tbuf, m_d);
#else
strftime(tbuf, sizeof tbuf, "%Y-%m-%d", timeptr);
#endif /* POSIX_2008 */
}
break;
case 'g':
@@ -329,8 +432,20 @@ strftime(char *s, size_t maxsize, const char *format, const struct tm *timeptr)
else
y = 1900L + timeptr->tm_year;
if (*format == 'G')
sprintf(tbuf, "%ld", y);
if (*format == 'G') {
#ifdef POSIX_2008
if (pad != '\0' && fw > 0) {
size_t min_fw = 4;
fw = max(fw, min_fw);
sprintf(tbuf, flag
? "%+0*ld"
: "%0*ld", (int) fw,
y);
} else
#endif /* POSIX_2008 */
sprintf(tbuf, "%ld", y);
}
else
sprintf(tbuf, "%02ld", y % 100);
break;
@@ -455,7 +570,17 @@ strftime(char *s, size_t maxsize, const char *format, const struct tm *timeptr)
break;
case 'Y': /* year with century */
fullyear:
#ifdef POSIX_2008
if (pad != '\0' && fw > 0) {
size_t min_fw = 4;
fw = max(fw, min_fw);
sprintf(tbuf, flag
? "%+0*ld"
: "%0*ld", (int) fw,
1900L + timeptr->tm_year);
} else
#endif /* POSIX_2008 */
sprintf(tbuf, "%ld", 1900L + timeptr->tm_year);
break;
@@ -496,12 +621,12 @@ strftime(char *s, size_t maxsize, const char *format, const struct tm *timeptr)
* Systems with tzname[] probably have timezone as
* secs west of GMT. Convert to mins east of GMT.
*/
# ifdef HPUX
# if defined(__hpux) || defined (HPUX) || defined(__CYGWIN__)
off = -timezone / 60;
# else
/* ADR: 4 August 2001, fixed this per gazelle@interaccess.com */
off = -(daylight ? altzone : timezone) / 60;
# endif /* !HPUX */
# endif
#else /* !HAVE_TZNAME */
gettimeofday(& tv, & zone);
off = -zone.tz_minuteswest;