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* strftime.c (rb_strftime): support more flags.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@18790 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu
parent
74cd315a50
commit
5378f8e5b1
2 changed files with 118 additions and 71 deletions
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@ -1,3 +1,7 @@
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Sat Aug 23 17:06:57 2008 Nobuyoshi Nakada <nobu@ruby-lang.org>
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* strftime.c (rb_strftime): support more flags.
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Sat Aug 23 15:14:10 2008 Koichi Sasada <ko1@atdot.net>
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* vm_opts.h: enable "OPT_TRACE_INSTRUCTION" on default.
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@ -146,9 +150,6 @@ Fri Aug 22 14:28:05 2008 Nobuyoshi Nakada <nobu@ruby-lang.org>
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* strftime.c (rb_strftime): supported flags and precision for most
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conversions. [ruby-dev:35906]
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* lib/date/format.rb (Date#strftime): left-justifies %L and %N.
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[ruby-dev:35909]
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Fri Aug 22 14:04:04 2008 Martin Duerst <duerst@it.aoyama.ac.jp>
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* test/ruby/test_transcode.rb: test_shift_jis:
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182
strftime.c
182
strftime.c
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@ -171,6 +171,10 @@ max(int a, int b)
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return (a > b ? a : b);
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}
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#ifdef NO_STRING_LITERAL_CONCATENATION
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#error No string literal concatenation
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#endif
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/* strftime --- produce formatted time */
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size_t
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@ -191,29 +195,24 @@ rb_strftime(char *s, size_t maxsize, const char *format, const struct tm *timept
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#endif /* POSIX_SEMANTICS */
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#ifndef HAVE_TM_ZONE
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#ifndef HAVE_TM_NAME
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#if !defined HAVE_VAR_TIMEZONE || defined HAVE_TIMEZONE
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struct timeval tv;
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#endif
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#ifdef HAVE_TIMEZONE
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struct timezone zone;
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#endif /* HAVE_TIMEZONE */
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#endif /* HAVE_TM_NAME */
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#endif /* HAVE_TM_ZONE */
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int precision, flags;
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enum {LEFT, CHCASE, LOWER, UPPER, SPACE, ZERO};
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char padding;
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enum {LEFT, CHCASE, LOWER, UPPER, LOCALE_O, LOCALE_E};
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#define BIT_OF(n) (1U<<(n))
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/* various tables, useful in North America */
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static const char days_a[][4] = {
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"Sun", "Mon", "Tue", "Wed",
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"Thu", "Fri", "Sat",
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};
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static const char days_l[][10] = {
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"Sunday", "Monday", "Tuesday", "Wednesday",
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"Thursday", "Friday", "Saturday",
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};
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static const char months_a[][4] = {
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"Jan", "Feb", "Mar", "Apr", "May", "Jun",
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"Jul", "Aug", "Sep", "Oct", "Nov", "Dec",
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};
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static const char months_l[][10] = {
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"January", "February", "March", "April",
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"May", "June", "July", "August", "September",
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@ -267,13 +266,19 @@ rb_strftime(char *s, size_t maxsize, const char *format, const struct tm *timept
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#endif /* POSIX_SEMANTICS */
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for (; *format && s < endp - 1; format++) {
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#define FLAG_FOUND() do { \
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if (precision > 0 || flags & (BIT_OF(LOCALE_E)|BIT_OF(LOCALE_O))) \
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goto unknown; \
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} while (0)
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#define NEEDS(n) do if (s + (n) >= endp - 1) goto err; while (0)
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#define FMT(fmt, def_prec, val) \
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#define FMT(def_pad, def_prec, fmt, val) \
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do { \
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int l; \
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if (precision == 0) break; \
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if (precision < 0) precision = (def_prec); \
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l = snprintf(s, endp - s, fmt, precision, val); \
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if (precision <= 0) precision = (def_prec); \
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if (flags & BIT_OF(LEFT)) precision = 0; \
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l = snprintf(s, endp - s, \
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((!padding || padding == (def_pad)) ? "%.*"fmt : "%*"fmt), \
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precision, val); \
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if (l < 0) goto err; \
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s += l; \
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} while (0)
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@ -292,6 +297,7 @@ rb_strftime(char *s, size_t maxsize, const char *format, const struct tm *timept
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sp = format;
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precision = -1;
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flags = 0;
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padding = 0;
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again:
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switch (*++format) {
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case '\0':
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@ -304,16 +310,16 @@ rb_strftime(char *s, size_t maxsize, const char *format, const struct tm *timept
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case 'a': /* abbreviated weekday name */
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if (timeptr->tm_wday < 0 || timeptr->tm_wday > 6)
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tp = "?";
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i = 1, tp = "?";
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else
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tp = days_a[timeptr->tm_wday];
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i = 3, tp = days_l[timeptr->tm_wday];
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break;
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case 'A': /* full weekday name */
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if (timeptr->tm_wday < 0 || timeptr->tm_wday > 6)
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tp = "?";
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i = 1, tp = "?";
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else
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tp = days_l[timeptr->tm_wday];
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i = strlen(tp = days_l[timeptr->tm_wday]);
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break;
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#ifdef SYSV_EXT
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@ -321,16 +327,16 @@ rb_strftime(char *s, size_t maxsize, const char *format, const struct tm *timept
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#endif
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case 'b': /* abbreviated month name */
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if (timeptr->tm_mon < 0 || timeptr->tm_mon > 11)
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tp = "?";
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i = 1, tp = "?";
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else
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tp = months_a[timeptr->tm_mon];
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i = 3, tp = months_l[timeptr->tm_mon];
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break;
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case 'B': /* full month name */
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if (timeptr->tm_mon < 0 || timeptr->tm_mon > 11)
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tp = "?";
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i = 1, tp = "?";
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else
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tp = months_l[timeptr->tm_mon];
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i = strlen(tp = months_l[timeptr->tm_mon]);
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break;
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case 'c': /* appropriate date and time representation */
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@ -339,12 +345,12 @@ rb_strftime(char *s, size_t maxsize, const char *format, const struct tm *timept
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case 'd': /* day of the month, 01 - 31 */
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i = range(1, timeptr->tm_mday, 31);
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FMT("%.*d", 2, i);
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FMT('0', 2, "d", i);
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continue;
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case 'H': /* hour, 24-hour clock, 00 - 23 */
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i = range(0, timeptr->tm_hour, 23);
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FMT("%.*d", 2, i);
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FMT('0', 2, "d", i);
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continue;
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case 'I': /* hour, 12-hour clock, 01 - 12 */
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@ -353,21 +359,21 @@ rb_strftime(char *s, size_t maxsize, const char *format, const struct tm *timept
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i = 12;
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else if (i > 12)
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i -= 12;
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FMT("%.*d", 2, i);
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FMT('0', 2, "d", i);
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continue;
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case 'j': /* day of the year, 001 - 366 */
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FMT("%.*d", 3, timeptr->tm_yday + 1);
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FMT('0', 3, "d", timeptr->tm_yday + 1);
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continue;
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case 'm': /* month, 01 - 12 */
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i = range(0, timeptr->tm_mon, 11);
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FMT("%.*d", 2, i + 1);
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FMT('0', 2, "d", i + 1);
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continue;
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case 'M': /* minute, 00 - 59 */
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i = range(0, timeptr->tm_min, 59);
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FMT("%.*d", 2, i);
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FMT('0', 2, "d", i);
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continue;
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case 'p': /* am or pm based on 12-hour clock */
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@ -380,24 +386,25 @@ rb_strftime(char *s, size_t maxsize, const char *format, const struct tm *timept
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tp = ampm[0];
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else
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tp = ampm[1];
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i = 2;
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break;
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case 'S': /* second, 00 - 60 */
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i = range(0, timeptr->tm_sec, 60);
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FMT("%.*d", 2, i);
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FMT('0', 2, "d", i);
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continue;
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case 'U': /* week of year, Sunday is first day of week */
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FMT("%.*d", 2, weeknumber(timeptr, 0));
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FMT('0', 2, "d", weeknumber(timeptr, 0));
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continue;
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case 'w': /* weekday, Sunday == 0, 0 - 6 */
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i = range(0, timeptr->tm_wday, 6);
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FMT("%.*d", 0, i);
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FMT('0', 0, "d", i);
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continue;
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case 'W': /* week of year, Monday is first day of week */
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FMT("%.*d", 2, weeknumber(timeptr, 1));
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FMT('0', 2, "d", weeknumber(timeptr, 1));
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continue;
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case 'x': /* appropriate date representation */
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@ -410,11 +417,11 @@ rb_strftime(char *s, size_t maxsize, const char *format, const struct tm *timept
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case 'y': /* year without a century, 00 - 99 */
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i = timeptr->tm_year % 100;
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FMT("%.*d", 2, i);
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FMT('0', 2, "d", i);
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continue;
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case 'Y': /* year with century */
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FMT("%.*ld", 0, 1900L + timeptr->tm_year);
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FMT('0', 0, "ld", 1900L + timeptr->tm_year);
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continue;
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#ifdef MAILHEADER_EXT
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@ -434,45 +441,52 @@ rb_strftime(char *s, size_t maxsize, const char *format, const struct tm *timept
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* us that muck around with various message processors.
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*/
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case 'z': /* time zone offset east of GMT e.g. -0600 */
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if (precision < 4) precision = 4;
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NEEDS(precision + 1);
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if (gmt) {
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FMT("%+.*d", 4, 0);
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continue;
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off = 0;
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}
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else {
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#ifdef HAVE_TM_NAME
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/*
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* Systems with tm_name probably have tm_tzadj as
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* secs west of GMT. Convert to mins east of GMT.
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*/
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off = -timeptr->tm_tzadj / 60;
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/*
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* Systems with tm_name probably have tm_tzadj as
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* secs west of GMT. Convert to mins east of GMT.
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*/
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off = -timeptr->tm_tzadj / 60;
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#else /* !HAVE_TM_NAME */
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#ifdef HAVE_TM_ZONE
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/*
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* Systems with tm_zone probably have tm_gmtoff as
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* secs east of GMT. Convert to mins east of GMT.
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*/
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off = timeptr->tm_gmtoff / 60;
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/*
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* Systems with tm_zone probably have tm_gmtoff as
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* secs east of GMT. Convert to mins east of GMT.
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*/
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off = timeptr->tm_gmtoff / 60;
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#else /* !HAVE_TM_ZONE */
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#if HAVE_VAR_TIMEZONE
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#if HAVE_VAR_ALTZONE
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off = -(daylight ? timezone : altzone) / 60;
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off = -(daylight ? timezone : altzone) / 60;
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#else
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off = -timezone / 60;
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off = -timezone / 60;
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#endif
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#else /* !HAVE_TIMEZONE */
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#ifdef HAVE_GETTIMEOFDAY
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gettimeofday(&tv, &zone);
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off = -zone.tz_minuteswest;
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gettimeofday(&tv, &zone);
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off = -zone.tz_minuteswest;
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#endif
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#endif /* !HAVE_TIMEZONE */
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#endif /* !HAVE_TM_ZONE */
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#endif /* !HAVE_TM_NAME */
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}
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if (off < 0) {
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off = -off;
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off = -(off/60*100 + off%60);
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*s++ = '-';
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} else {
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off = off/60*100 + off%60;
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*s++ = '+';
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}
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FMT("%+.*ld", 4, off);
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off = off/60*100 + off%60;
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i = snprintf(s, endp - s, (padding == ' ' ? "%*ld" : "%.*ld"),
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precision - (precision > 4), off);
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if (i < 0) goto err;
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s += i;
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continue;
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#endif /* MAILHEADER_EXT */
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@ -482,6 +496,7 @@ rb_strftime(char *s, size_t maxsize, const char *format, const struct tm *timept
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flags |= BIT_OF(LOWER);
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}
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if (gmt) {
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i = 3;
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tp = "UTC";
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break;
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}
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@ -506,6 +521,7 @@ rb_strftime(char *s, size_t maxsize, const char *format, const struct tm *timept
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#endif /* HAVE_TM_NAME */
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#endif /* HAVE_TM_ZONE */
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#endif /* HAVE_TZNAME */
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i = strlen(tp);
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break;
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#ifdef SYSV_EXT
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@ -524,7 +540,7 @@ rb_strftime(char *s, size_t maxsize, const char *format, const struct tm *timept
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continue;
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case 'e': /* day of month, blank padded */
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FMT("%.*d", 2, range(1, timeptr->tm_mday, 31));
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FMT(' ', 2, "d", range(1, timeptr->tm_mday, 31));
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continue;
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case 'r': /* time as %I:%M:%S %p */
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@ -542,7 +558,8 @@ rb_strftime(char *s, size_t maxsize, const char *format, const struct tm *timept
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#ifdef SUNOS_EXT
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case 'k': /* hour, 24-hour clock, blank pad */
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FMT("%*d", 2, range(0, timeptr->tm_hour, 23));
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i = range(0, timeptr->tm_hour, 23);
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FMT(' ', 2, "d", i);
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continue;
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case 'l': /* hour, 12-hour clock, 1 - 12, blank pad */
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@ -551,7 +568,7 @@ rb_strftime(char *s, size_t maxsize, const char *format, const struct tm *timept
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i = 12;
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else if (i > 12)
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i -= 12;
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FMT("%*d", 2, i);
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FMT(' ', 2, "d", i);
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continue;
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#endif
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@ -560,7 +577,7 @@ rb_strftime(char *s, size_t maxsize, const char *format, const struct tm *timept
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case 'v': /* date as dd-bbb-YYYY */
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w = snprintf(s, endp - s, "%2d-%3.3s-%4ld",
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range(1, timeptr->tm_mday, 31),
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months_a[range(0, timeptr->tm_mon, 11)],
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months_l[range(0, timeptr->tm_mon, 11)],
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timeptr->tm_year + 1900L);
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if (w < 0) goto err;
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for (i = 3; i < 6; i++)
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@ -573,22 +590,26 @@ rb_strftime(char *s, size_t maxsize, const char *format, const struct tm *timept
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#ifdef POSIX2_DATE
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case 'C':
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FMT("%.*ld", 2, (timeptr->tm_year + 1900L) / 100);
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FMT('0', 2, "ld", (timeptr->tm_year + 1900L) / 100);
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continue;
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case 'E':
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/* POSIX locale extensions, ignored for now */
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flags |= BIT_OF(LOCALE_E);
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goto again;
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case 'O':
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/* POSIX locale extensions, ignored for now */
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flags |= BIT_OF(LOCALE_O);
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goto again;
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case 'V': /* week of year according ISO 8601 */
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FMT("%.*d", 2, iso8601wknum(timeptr));
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FMT('0', 2, "d", iso8601wknum(timeptr));
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continue;
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case 'u':
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/* ISO 8601: Weekday as a decimal number [1 (Monday) - 7] */
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FMT("%*d", 0, timeptr->tm_wday == 0 ? 7 : timeptr->tm_wday);
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FMT('0', 0, "d", timeptr->tm_wday == 0 ? 7 : timeptr->tm_wday);
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continue;
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#endif /* POSIX2_DATE */
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@ -613,9 +634,9 @@ rb_strftime(char *s, size_t maxsize, const char *format, const struct tm *timept
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y = 1900L + timeptr->tm_year;
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if (*format == 'G')
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FMT("%.*ld", 0, y);
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FMT('0', 0, "ld", y);
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else
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FMT("%.*ld", 2, y % 100);
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FMT('0', 2, "ld", y % 100);
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continue;
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#endif /* ISO_DATE_EXT */
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@ -669,23 +690,28 @@ rb_strftime(char *s, size_t maxsize, const char *format, const struct tm *timept
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continue;
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case '-':
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FLAG_FOUND();
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flags |= BIT_OF(LEFT);
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padding = precision = 0;
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goto again;
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case '^':
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FLAG_FOUND();
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flags |= BIT_OF(UPPER);
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goto again;
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case '#':
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FLAG_FOUND();
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flags |= BIT_OF(CHCASE);
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goto again;
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case '_':
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flags |= BIT_OF(SPACE);
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FLAG_FOUND();
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padding = ' ';
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goto again;
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case '0':
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flags |= BIT_OF(ZERO);
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padding = '0';
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case '1': case '2': case '3': case '4':
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case '5': case '6': case '7': case '8': case '9':
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{
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|
|
@ -696,16 +722,36 @@ rb_strftime(char *s, size_t maxsize, const char *format, const struct tm *timept
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}
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default:
|
||||
unknown:
|
||||
tp = sp;
|
||||
i = format - sp + 1;
|
||||
goto copy;
|
||||
break;
|
||||
}
|
||||
i = strlen(tp);
|
||||
copy:
|
||||
if (i) {
|
||||
NEEDS(i);
|
||||
if (!(flags & BIT_OF(LEFT)) && precision > i) {
|
||||
NEEDS(precision);
|
||||
memset(s, padding ? padding : ' ', precision - i);
|
||||
s += precision - i;
|
||||
}
|
||||
else {
|
||||
NEEDS(i);
|
||||
}
|
||||
memcpy(s, tp, i);
|
||||
s += i;
|
||||
switch (flags & (BIT_OF(UPPER)|BIT_OF(LOWER))) {
|
||||
case BIT_OF(UPPER):
|
||||
do {
|
||||
if (islower(*s)) *s = toupper(*s);
|
||||
} while (s++, --i);
|
||||
break;
|
||||
case BIT_OF(LOWER):
|
||||
do {
|
||||
if (isupper(*s)) *s = tolower(*s);
|
||||
} while (s++, --i);
|
||||
break;
|
||||
default:
|
||||
s += i;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
out:
|
||||
|
|
|
|||
Loading…
Reference in a new issue