Ruby  2.7.0p0(2019-12-25revision647ee6f091eafcce70ffb75ddf7e121e192ab217)
strftime.c
Go to the documentation of this file.
1 /* -*- c-file-style: "linux" -*- */
2 
3 /*
4  * strftime.c
5  *
6  * Public-domain implementation of ANSI C library routine.
7  *
8  * It's written in old-style C for maximal portability.
9  * However, since I'm used to prototypes, I've included them too.
10  *
11  * If you want stuff in the System V ascftime routine, add the SYSV_EXT define.
12  * For extensions from SunOS, add SUNOS_EXT.
13  * For stuff needed to implement the P1003.2 date command, add POSIX2_DATE.
14  * For VMS dates, add VMS_EXT.
15  * For a an RFC822 time format, add MAILHEADER_EXT.
16  * For ISO week years, add ISO_DATE_EXT.
17  * For complete POSIX semantics, add POSIX_SEMANTICS.
18  *
19  * The code for %c, %x, and %X now follows the 1003.2 specification for
20  * the POSIX locale.
21  * This version ignores LOCALE information.
22  * It also doesn't worry about multi-byte characters.
23  * So there.
24  *
25  * This file is also shipped with GAWK (GNU Awk), gawk specific bits of
26  * code are included if GAWK is defined.
27  *
28  * Arnold Robbins
29  * January, February, March, 1991
30  * Updated March, April 1992
31  * Updated April, 1993
32  * Updated February, 1994
33  * Updated May, 1994
34  * Updated January, 1995
35  * Updated September, 1995
36  * Updated January, 1996
37  *
38  * Fixes from ado@elsie.nci.nih.gov
39  * February 1991, May 1992
40  * Fixes from Tor Lillqvist tml@tik.vtt.fi
41  * May, 1993
42  * Further fixes from ado@elsie.nci.nih.gov
43  * February 1994
44  * %z code from chip@chinacat.unicom.com
45  * Applied September 1995
46  * %V code fixed (again) and %G, %g added,
47  * January 1996
48  */
49 
50 #include "ruby/ruby.h"
51 #include "ruby/encoding.h"
52 #include "timev.h"
53 #include "internal.h"
54 
55 #ifndef GAWK
56 #include <stdio.h>
57 #include <ctype.h>
58 #include <string.h>
59 #include <time.h>
60 #include <sys/types.h>
61 #include <errno.h>
62 #endif
63 #if defined(TM_IN_SYS_TIME) || !defined(GAWK)
64 #include <sys/types.h>
65 #if HAVE_SYS_TIME_H
66 #include <sys/time.h>
67 #endif
68 #endif
69 #include <math.h>
70 
71 /* defaults: season to taste */
72 #define SYSV_EXT 1 /* stuff in System V ascftime routine */
73 #define SUNOS_EXT 1 /* stuff in SunOS strftime routine */
74 #define POSIX2_DATE 1 /* stuff in Posix 1003.2 date command */
75 #define VMS_EXT 1 /* include %v for VMS date format */
76 #define MAILHEADER_EXT 1 /* add %z for HHMM format */
77 #define ISO_DATE_EXT 1 /* %G and %g for year of ISO week */
78 
79 #if defined(ISO_DATE_EXT)
80 #if ! defined(POSIX2_DATE)
81 #define POSIX2_DATE 1
82 #endif
83 #endif
84 
85 #if defined(POSIX2_DATE)
86 #if ! defined(SYSV_EXT)
87 #define SYSV_EXT 1
88 #endif
89 #if ! defined(SUNOS_EXT)
90 #define SUNOS_EXT 1
91 #endif
92 #endif
93 
94 #if defined(POSIX2_DATE)
95 #define adddecl(stuff) stuff
96 #else
97 #define adddecl(stuff)
98 #endif
99 
100 #undef strchr /* avoid AIX weirdness */
101 
102 #if !defined __STDC__ && !defined _WIN32
103 #define const
104 static int weeknumber();
105 adddecl(static int iso8601wknum();)
106 static int weeknumber_v();
107 adddecl(static int iso8601wknum_v();)
108 #else
109 static int weeknumber(const struct tm *timeptr, int firstweekday);
110 adddecl(static int iso8601wknum(const struct tm *timeptr);)
111 static int weeknumber_v(const struct vtm *vtm, int firstweekday);
112 adddecl(static int iso8601wknum_v(const struct vtm *vtm);)
113 #endif
114 
115 #ifdef STDC_HEADERS
116 #include <stdlib.h>
117 #include <string.h>
118 #else
119 extern void *malloc();
120 extern void *realloc();
121 extern char *getenv();
122 extern char *strchr();
123 #endif
124 
125 #define range(low, item, hi) max((low), min((item), (hi)))
126 
127 #undef min /* just in case */
128 
129 /* min --- return minimum of two numbers */
130 
131 static inline int
132 min(int a, int b)
133 {
134  return (a < b ? a : b);
135 }
136 
137 #undef max /* also, just in case */
138 
139 /* max --- return maximum of two numbers */
140 
141 static inline int
142 max(int a, int b)
143 {
144  return (a > b ? a : b);
145 }
146 
147 #ifdef NO_STRING_LITERAL_CONCATENATION
148 #error No string literal concatenation
149 #endif
150 
151 #define add(x,y) (rb_funcall((x), '+', 1, (y)))
152 #define sub(x,y) (rb_funcall((x), '-', 1, (y)))
153 #define mul(x,y) (rb_funcall((x), '*', 1, (y)))
154 #define quo(x,y) (rb_funcall((x), rb_intern("quo"), 1, (y)))
155 #define div(x,y) (rb_funcall((x), rb_intern("div"), 1, (y)))
156 #define mod(x,y) (rb_funcall((x), '%', 1, (y)))
157 
158 /* strftime --- produce formatted time */
159 
160 enum {LEFT, CHCASE, LOWER, UPPER};
161 #define BIT_OF(n) (1U<<(n))
162 
163 static char *
164 resize_buffer(VALUE ftime, char *s, const char **start, const char **endp,
165  ptrdiff_t n, size_t maxsize)
166 {
167  size_t len = s - *start;
168  size_t nlen = len + n * 2;
169 
170  if (nlen < len || nlen > maxsize) {
171  return 0;
172  }
173  rb_str_set_len(ftime, len);
174  rb_str_modify_expand(ftime, nlen-len);
175  s = RSTRING_PTR(ftime);
176  *endp = s + nlen;
177  *start = s;
178  return s += len;
179 }
180 
181 static void
182 buffer_size_check(const char *s,
183  const char *format_end, size_t format_len,
184  rb_encoding *enc)
185 {
186  if (!s) {
187  const char *format = format_end-format_len;
188  VALUE fmt = rb_enc_str_new(format, format_len, enc);
190  }
191 }
192 
193 static char *
194 case_conv(char *s, ptrdiff_t i, int flags)
195 {
196  switch (flags & (BIT_OF(UPPER)|BIT_OF(LOWER))) {
197  case BIT_OF(UPPER):
198  do {
199  if (ISLOWER(*s)) *s = TOUPPER(*s);
200  } while (s++, --i);
201  break;
202  case BIT_OF(LOWER):
203  do {
204  if (ISUPPER(*s)) *s = TOLOWER(*s);
205  } while (s++, --i);
206  break;
207  default:
208  s += i;
209  break;
210  }
211  return s;
212 }
213 
214 static VALUE
215 format_value(VALUE val, int base)
216 {
217  if (!RB_TYPE_P(val, T_BIGNUM))
218  val = rb_Integer(val);
219  return rb_big2str(val, base);
220 }
221 
222 /*
223  * enc is the encoding of the format. It is used as the encoding of resulted
224  * string, but the name of the month and weekday are always US-ASCII. So it
225  * is only used for the timezone name on Windows.
226  */
227 static VALUE
228 rb_strftime_with_timespec(VALUE ftime, const char *format, size_t format_len,
229  rb_encoding *enc, VALUE time, const struct vtm *vtm,
230  VALUE timev, struct timespec *ts, int gmt, size_t maxsize)
231 {
232  size_t len = RSTRING_LEN(ftime);
233  char *s = RSTRING_PTR(ftime);
234  const char *start = s;
235  const char *endp = start + rb_str_capacity(ftime);
236  const char *const format_end = format + format_len;
237  const char *sp, *tp;
238 #define TBUFSIZE 100
239  auto char tbuf[TBUFSIZE];
240  long off;
241  ptrdiff_t i;
242  int w;
243  long y;
244  int precision, flags, colons;
245  char padding;
246 #ifdef MAILHEADER_EXT
247  int sign;
248 #endif
249  VALUE zone = Qnil;
250 
251  /* various tables, useful in North America */
252  static const char days_l[][10] = {
253  "Sunday", "Monday", "Tuesday", "Wednesday",
254  "Thursday", "Friday", "Saturday",
255  };
256  static const char months_l[][10] = {
257  "January", "February", "March", "April",
258  "May", "June", "July", "August", "September",
259  "October", "November", "December",
260  };
261  static const char ampm[][3] = { "AM", "PM", };
262 
263  if (format == NULL || format_len == 0 || vtm == NULL) {
264  err:
265  return 0;
266  }
267 
268  if (enc &&
269  (enc == rb_usascii_encoding() ||
270  enc == rb_ascii8bit_encoding() ||
271  enc == rb_locale_encoding())) {
272  enc = NULL;
273  }
274 
275  s += len;
276  for (; format < format_end; format++) {
277 #define FLAG_FOUND() do { \
278  if (precision > 0) \
279  goto unknown; \
280  } while (0)
281 #define NEEDS(n) do { \
282  if (s >= endp || (n) >= endp - s - 1) { \
283  s = resize_buffer(ftime, s, &start, &endp, (n), maxsize); \
284  buffer_size_check(s, format_end, format_len, enc); \
285  } \
286  } while (0)
287 #define FILL_PADDING(i) do { \
288  if (!(flags & BIT_OF(LEFT)) && precision > (i)) { \
289  NEEDS(precision); \
290  memset(s, padding ? padding : ' ', precision - (i)); \
291  s += precision - (i); \
292  } \
293  else { \
294  NEEDS(i); \
295  } \
296 } while (0);
297 #define FMT_PADDING(fmt, def_pad) \
298  (&"%*"fmt"\0""%0*"fmt[\
299  (padding == '0' || (!padding && (def_pad) == '0')) ? \
300  rb_strlen_lit("%*"fmt)+1 : 0])
301 #define FMT_PRECISION(def_prec) \
302  ((flags & BIT_OF(LEFT)) ? (1) : \
303  (precision <= 0) ? (def_prec) : (precision))
304 #define FMT(def_pad, def_prec, fmt, val) \
305  do { \
306  precision = FMT_PRECISION(def_prec); \
307  len = s - start; \
308  NEEDS(precision); \
309  rb_str_set_len(ftime, len); \
310  rb_str_catf(ftime, FMT_PADDING(fmt, def_pad), \
311  precision, (val)); \
312  RSTRING_GETMEM(ftime, s, len); \
313  endp = (start = s) + rb_str_capacity(ftime); \
314  s += len; \
315  } while (0)
316 #define STRFTIME(fmt) \
317  do { \
318  len = s - start; \
319  rb_str_set_len(ftime, len); \
320  if (!rb_strftime_with_timespec(ftime, (fmt), rb_strlen_lit(fmt), \
321  enc, time, vtm, timev, ts, gmt, maxsize)) \
322  return 0; \
323  s = RSTRING_PTR(ftime); \
324  i = RSTRING_LEN(ftime) - len; \
325  endp = (start = s) + rb_str_capacity(ftime); \
326  s += len; \
327  if (i > 0) case_conv(s, i, flags); \
328  if (precision > i) {\
329  NEEDS(precision); \
330  memmove(s + precision - i, s, i);\
331  memset(s, padding ? padding : ' ', precision - i); \
332  s += precision; \
333  } \
334  else s += i; \
335  } while (0)
336 #define FMTV(def_pad, def_prec, fmt, val) \
337  do { \
338  VALUE tmp = (val); \
339  if (FIXNUM_P(tmp)) { \
340  FMT((def_pad), (def_prec), "l"fmt, FIX2LONG(tmp)); \
341  } \
342  else { \
343  const int base = ((fmt[0] == 'x') ? 16 : \
344  (fmt[0] == 'o') ? 8 : \
345  10); \
346  precision = FMT_PRECISION(def_prec); \
347  if (!padding) padding = (def_pad); \
348  tmp = format_value(tmp, base); \
349  i = RSTRING_LEN(tmp); \
350  FILL_PADDING(i); \
351  rb_str_set_len(ftime, s-start); \
352  rb_str_append(ftime, tmp); \
353  RSTRING_GETMEM(ftime, s, len); \
354  endp = (start = s) + rb_str_capacity(ftime); \
355  s += len; \
356  } \
357  } while (0)
358 
359  tp = memchr(format, '%', format_end - format);
360  if (!tp) tp = format_end;
361  NEEDS(tp - format);
362  memcpy(s, format, tp - format);
363  s += tp - format;
364  format = tp;
365  if (format == format_end) break;
366 
367  tp = tbuf;
368  sp = format;
369  precision = -1;
370  flags = 0;
371  padding = 0;
372  colons = 0;
373  again:
374  if (++format >= format_end) goto unknown;
375  switch (*format) {
376  case '%':
377  FILL_PADDING(1);
378  *s++ = '%';
379  continue;
380 
381  case 'a': /* abbreviated weekday name */
382  if (flags & BIT_OF(CHCASE)) {
383  flags &= ~(BIT_OF(LOWER)|BIT_OF(CHCASE));
384  flags |= BIT_OF(UPPER);
385  }
386  if (vtm->wday < 0 || vtm->wday > 6)
387  i = 1, tp = "?";
388  else
389  i = 3, tp = days_l[vtm->wday];
390  break;
391 
392  case 'A': /* full weekday name */
393  if (flags & BIT_OF(CHCASE)) {
394  flags &= ~(BIT_OF(LOWER)|BIT_OF(CHCASE));
395  flags |= BIT_OF(UPPER);
396  }
397  if (vtm->wday < 0 || vtm->wday > 6)
398  i = 1, tp = "?";
399  else
400  i = strlen(tp = days_l[vtm->wday]);
401  break;
402 
403 #ifdef SYSV_EXT
404  case 'h': /* abbreviated month name */
405 #endif
406  case 'b': /* abbreviated month name */
407  if (flags & BIT_OF(CHCASE)) {
408  flags &= ~(BIT_OF(LOWER)|BIT_OF(CHCASE));
409  flags |= BIT_OF(UPPER);
410  }
411  if (vtm->mon < 1 || vtm->mon > 12)
412  i = 1, tp = "?";
413  else
414  i = 3, tp = months_l[vtm->mon-1];
415  break;
416 
417  case 'B': /* full month name */
418  if (flags & BIT_OF(CHCASE)) {
419  flags &= ~(BIT_OF(LOWER)|BIT_OF(CHCASE));
420  flags |= BIT_OF(UPPER);
421  }
422  if (vtm->mon < 1 || vtm->mon > 12)
423  i = 1, tp = "?";
424  else
425  i = strlen(tp = months_l[vtm->mon-1]);
426  break;
427 
428  case 'c': /* appropriate date and time representation */
429  STRFTIME("%a %b %e %H:%M:%S %Y");
430  continue;
431 
432  case 'd': /* day of the month, 01 - 31 */
433  i = range(1, vtm->mday, 31);
434  FMT('0', 2, "d", (int)i);
435  continue;
436 
437  case 'H': /* hour, 24-hour clock, 00 - 23 */
438  i = range(0, vtm->hour, 23);
439  FMT('0', 2, "d", (int)i);
440  continue;
441 
442  case 'I': /* hour, 12-hour clock, 01 - 12 */
443  i = range(0, vtm->hour, 23);
444  if (i == 0)
445  i = 12;
446  else if (i > 12)
447  i -= 12;
448  FMT('0', 2, "d", (int)i);
449  continue;
450 
451  case 'j': /* day of the year, 001 - 366 */
452  i = range(1, vtm->yday, 366);
453  FMT('0', 3, "d", (int)i);
454  continue;
455 
456  case 'm': /* month, 01 - 12 */
457  i = range(1, vtm->mon, 12);
458  FMT('0', 2, "d", (int)i);
459  continue;
460 
461  case 'M': /* minute, 00 - 59 */
462  i = range(0, vtm->min, 59);
463  FMT('0', 2, "d", (int)i);
464  continue;
465 
466  case 'p': /* AM or PM based on 12-hour clock */
467  case 'P': /* am or pm based on 12-hour clock */
468  if ((*format == 'p' && (flags & BIT_OF(CHCASE))) ||
469  (*format == 'P' && !(flags & (BIT_OF(CHCASE)|BIT_OF(UPPER))))) {
470  flags &= ~(BIT_OF(UPPER)|BIT_OF(CHCASE));
471  flags |= BIT_OF(LOWER);
472  }
473  i = range(0, vtm->hour, 23);
474  if (i < 12)
475  tp = ampm[0];
476  else
477  tp = ampm[1];
478  i = 2;
479  break;
480 
481  case 's':
482  if (ts) {
483  time_t sec = ts->tv_sec;
484  if (~(time_t)0 <= 0)
485  FMT('0', 1, PRI_TIMET_PREFIX"d", sec);
486  else
487  FMT('0', 1, PRI_TIMET_PREFIX"u", sec);
488  }
489  else {
490  VALUE sec = div(timev, INT2FIX(1));
491  FMTV('0', 1, "d", sec);
492  }
493  continue;
494 
495  case 'S': /* second, 00 - 60 */
496  i = range(0, vtm->sec, 60);
497  FMT('0', 2, "d", (int)i);
498  continue;
499 
500  case 'U': /* week of year, Sunday is first day of week */
501  FMT('0', 2, "d", weeknumber_v(vtm, 0));
502  continue;
503 
504  case 'w': /* weekday, Sunday == 0, 0 - 6 */
505  i = range(0, vtm->wday, 6);
506  FMT('0', 1, "d", (int)i);
507  continue;
508 
509  case 'W': /* week of year, Monday is first day of week */
510  FMT('0', 2, "d", weeknumber_v(vtm, 1));
511  continue;
512 
513  case 'x': /* appropriate date representation */
514  STRFTIME("%m/%d/%y");
515  continue;
516 
517  case 'X': /* appropriate time representation */
518  STRFTIME("%H:%M:%S");
519  continue;
520 
521  case 'y': /* year without a century, 00 - 99 */
522  i = NUM2INT(mod(vtm->year, INT2FIX(100)));
523  FMT('0', 2, "d", (int)i);
524  continue;
525 
526  case 'Y': /* year with century */
527  if (FIXNUM_P(vtm->year)) {
528  long y = FIX2LONG(vtm->year);
529  FMT('0', 0 <= y ? 4 : 5, "ld", y);
530  }
531  else {
532  FMTV('0', 4, "d", vtm->year);
533  }
534  continue;
535 
536 #ifdef MAILHEADER_EXT
537  case 'z': /* time zone offset east of GMT e.g. -0600 */
538  if (gmt) {
539  off = 0;
540  }
541  else {
542  off = NUM2LONG(rb_funcall(vtm->utc_offset, rb_intern("round"), 0));
543  }
544  if (off < 0) {
545  off = -off;
546  sign = -1;
547  }
548  else {
549  sign = +1;
550  }
551  switch (colons) {
552  case 0: /* %z -> +hhmm */
553  precision = precision <= 5 ? 2 : precision-3;
554  NEEDS(precision + 3);
555  break;
556 
557  case 1: /* %:z -> +hh:mm */
558  precision = precision <= 6 ? 2 : precision-4;
559  NEEDS(precision + 4);
560  break;
561 
562  case 2: /* %::z -> +hh:mm:ss */
563  precision = precision <= 9 ? 2 : precision-7;
564  NEEDS(precision + 7);
565  break;
566 
567  case 3: /* %:::z -> +hh[:mm[:ss]] */
568  if (off % 3600 == 0) {
569  precision = precision <= 3 ? 2 : precision-1;
570  NEEDS(precision + 3);
571  }
572  else if (off % 60 == 0) {
573  precision = precision <= 6 ? 2 : precision-4;
574  NEEDS(precision + 4);
575  }
576  else {
577  precision = precision <= 9 ? 2 : precision-7;
578  NEEDS(precision + 9);
579  }
580  break;
581 
582  default:
583  format--;
584  goto unknown;
585  }
586  i = snprintf(s, endp - s, (padding == ' ' ? "%+*ld" : "%+.*ld"),
587  precision + (padding == ' '), sign * (off / 3600));
588  if (i < 0) goto err;
589  if (sign < 0 && off < 3600) {
590  *(padding == ' ' ? s + i - 2 : s) = '-';
591  }
592  s += i;
593  off = off % 3600;
594  if (colons == 3 && off == 0)
595  continue;
596  if (1 <= colons)
597  *s++ = ':';
598  i = snprintf(s, endp - s, "%02d", (int)(off / 60));
599  if (i < 0) goto err;
600  s += i;
601  off = off % 60;
602  if (colons == 3 && off == 0)
603  continue;
604  if (2 <= colons) {
605  *s++ = ':';
606  i = snprintf(s, endp - s, "%02d", (int)off);
607  if (i < 0) goto err;
608  s += i;
609  }
610  continue;
611 #endif /* MAILHEADER_EXT */
612 
613  case 'Z': /* time zone name or abbreviation */
614  if (flags & BIT_OF(CHCASE)) {
615  flags &= ~(BIT_OF(UPPER)|BIT_OF(CHCASE));
616  flags |= BIT_OF(LOWER);
617  }
618  if (gmt) {
619  i = 3;
620  tp = "UTC";
621  break;
622  }
623  if (NIL_P(vtm->zone)) {
624  i = 0;
625  }
626  else {
627  if (NIL_P(zone)) {
628  zone = rb_time_zone_abbreviation(vtm->zone, time);
629  }
630  tp = RSTRING_PTR(zone);
631  if (enc) {
632  for (i = 0; i < TBUFSIZE && tp[i]; i++) {
633  if ((unsigned char)tp[i] > 0x7F) {
635  i = strlcpy(tbuf, RSTRING_PTR(str), TBUFSIZE);
636  tp = tbuf;
637  break;
638  }
639  }
640  }
641  else
642  i = strlen(tp);
643  }
644  break;
645 
646 #ifdef SYSV_EXT
647  case 'n': /* same as \n */
648  FILL_PADDING(1);
649  *s++ = '\n';
650  continue;
651 
652  case 't': /* same as \t */
653  FILL_PADDING(1);
654  *s++ = '\t';
655  continue;
656 
657  case 'D': /* date as %m/%d/%y */
658  STRFTIME("%m/%d/%y");
659  continue;
660 
661  case 'e': /* day of month, blank padded */
662  FMT(' ', 2, "d", range(1, vtm->mday, 31));
663  continue;
664 
665  case 'r': /* time as %I:%M:%S %p */
666  STRFTIME("%I:%M:%S %p");
667  continue;
668 
669  case 'R': /* time as %H:%M */
670  STRFTIME("%H:%M");
671  continue;
672 
673  case 'T': /* time as %H:%M:%S */
674  STRFTIME("%H:%M:%S");
675  continue;
676 #endif
677 
678 #ifdef SUNOS_EXT
679  case 'k': /* hour, 24-hour clock, blank pad */
680  i = range(0, vtm->hour, 23);
681  FMT(' ', 2, "d", (int)i);
682  continue;
683 
684  case 'l': /* hour, 12-hour clock, 1 - 12, blank pad */
685  i = range(0, vtm->hour, 23);
686  if (i == 0)
687  i = 12;
688  else if (i > 12)
689  i -= 12;
690  FMT(' ', 2, "d", (int)i);
691  continue;
692 #endif
693 
694 
695 #ifdef VMS_EXT
696  case 'v': /* date as dd-bbb-YYYY */
697  STRFTIME("%e-%^b-%4Y");
698  continue;
699 #endif
700 
701 
702 #ifdef POSIX2_DATE
703  case 'C':
704  FMTV('0', 2, "d", div(vtm->year, INT2FIX(100)));
705  continue;
706 
707  case 'E':
708  /* POSIX locale extensions, ignored for now */
709  if (!format[1] || !strchr("cCxXyY", format[1]))
710  goto unknown;
711  goto again;
712  case 'O':
713  /* POSIX locale extensions, ignored for now */
714  if (!format[1] || !strchr("deHkIlmMSuUVwWy", format[1]))
715  goto unknown;
716  goto again;
717 
718  case 'V': /* week of year according ISO 8601 */
719  FMT('0', 2, "d", iso8601wknum_v(vtm));
720  continue;
721 
722  case 'u':
723  /* ISO 8601: Weekday as a decimal number [1 (Monday) - 7] */
724  FMT('0', 1, "d", vtm->wday == 0 ? 7 : vtm->wday);
725  continue;
726 #endif /* POSIX2_DATE */
727 
728 #ifdef ISO_DATE_EXT
729  case 'G':
730  case 'g':
731  /*
732  * Year of ISO week.
733  *
734  * If it's December but the ISO week number is one,
735  * that week is in next year.
736  * If it's January but the ISO week number is 52 or
737  * 53, that week is in last year.
738  * Otherwise, it's this year.
739  */
740  {
741  VALUE yv = vtm->year;
742  w = iso8601wknum_v(vtm);
743  if (vtm->mon == 12 && w == 1)
744  yv = add(yv, INT2FIX(1));
745  else if (vtm->mon == 1 && w >= 52)
746  yv = sub(yv, INT2FIX(1));
747 
748  if (*format == 'G') {
749  if (FIXNUM_P(yv)) {
750  const long y = FIX2LONG(yv);
751  FMT('0', 0 <= y ? 4 : 5, "ld", y);
752  }
753  else {
754  FMTV('0', 4, "d", yv);
755  }
756  }
757  else {
758  yv = mod(yv, INT2FIX(100));
759  y = FIX2LONG(yv);
760  FMT('0', 2, "ld", y);
761  }
762  continue;
763  }
764 
765 #endif /* ISO_DATE_EXT */
766 
767 
768  case 'L':
769  w = 3;
770  goto subsec;
771 
772  case 'N':
773  /*
774  * fractional second digits. default is 9 digits
775  * (nanosecond).
776  *
777  * %3N millisecond (3 digits)
778  * %6N microsecond (6 digits)
779  * %9N nanosecond (9 digits)
780  */
781  w = 9;
782  subsec:
783  if (precision <= 0) {
784  precision = w;
785  }
786  NEEDS(precision);
787 
788  if (ts) {
789  long subsec = ts->tv_nsec;
790  if (9 < precision) {
791  snprintf(s, endp - s, "%09ld", subsec);
792  memset(s+9, '0', precision-9);
793  s += precision;
794  }
795  else {
796  int i;
797  for (i = 0; i < 9-precision; i++)
798  subsec /= 10;
799  snprintf(s, endp - s, "%0*ld", precision, subsec);
800  s += precision;
801  }
802  }
803  else {
804  VALUE subsec = mod(timev, INT2FIX(1));
805  int ww;
806  long n;
807 
808  ww = precision;
809  while (9 <= ww) {
810  subsec = mul(subsec, INT2FIX(1000000000));
811  ww -= 9;
812  }
813  n = 1;
814  for (; 0 < ww; ww--)
815  n *= 10;
816  if (n != 1)
817  subsec = mul(subsec, INT2FIX(n));
818  subsec = div(subsec, INT2FIX(1));
819 
820  if (FIXNUM_P(subsec)) {
821  (void)snprintf(s, endp - s, "%0*ld", precision, FIX2LONG(subsec));
822  s += precision;
823  }
824  else {
825  VALUE args[2], result;
826  args[0] = INT2FIX(precision);
827  args[1] = subsec;
828  result = rb_str_format(2, args,
829  rb_fstring_lit("%0*d"));
830  (void)strlcpy(s, StringValueCStr(result), endp-s);
831  s += precision;
832  }
833  }
834  continue;
835 
836  case 'F': /* Equivalent to %Y-%m-%d */
837  STRFTIME("%Y-%m-%d");
838  continue;
839 
840  case '-':
841  FLAG_FOUND();
842  flags |= BIT_OF(LEFT);
843  padding = precision = 0;
844  goto again;
845 
846  case '^':
847  FLAG_FOUND();
848  flags |= BIT_OF(UPPER);
849  goto again;
850 
851  case '#':
852  FLAG_FOUND();
853  flags |= BIT_OF(CHCASE);
854  goto again;
855 
856  case '_':
857  FLAG_FOUND();
858  padding = ' ';
859  goto again;
860 
861  case ':':
862  for (colons = 1; colons <= 3; ++colons) {
863  if (format+colons >= format_end) goto unknown;
864  if (format[colons] == 'z') break;
865  if (format[colons] != ':') goto unknown;
866  }
867  format += colons - 1;
868  goto again;
869 
870  case '0':
871  padding = '0';
872  case '1': case '2': case '3': case '4':
873  case '5': case '6': case '7': case '8': case '9':
874  {
875  size_t n;
876  int ov;
877  unsigned long u = ruby_scan_digits(format, format_end-format, 10, &n, &ov);
878  if (ov || u > INT_MAX) goto unknown;
879  precision = (int)u;
880  format += n - 1;
881  goto again;
882  }
883 
884  default:
885  unknown:
886  i = format - sp + 1;
887  tp = sp;
888  precision = -1;
889  flags = 0;
890  padding = 0;
891  colons = 0;
892  break;
893  }
894  if (i) {
895  FILL_PADDING(i);
896  memcpy(s, tp, i);
897  s = case_conv(s, i, flags);
898  }
899  }
900  if (format != format_end) {
901  return 0;
902  }
903  len = s - start;
904  rb_str_set_len(ftime, len);
905  rb_str_resize(ftime, len);
906  return ftime;
907 }
908 
909 static size_t
910 strftime_size_limit(size_t format_len)
911 {
912  size_t limit = format_len * (1*1024*1024);
913  if (limit < format_len) limit = format_len;
914  else if (limit < 1024) limit = 1024;
915  return limit;
916 }
917 
918 VALUE
919 rb_strftime(const char *format, size_t format_len, rb_encoding *enc,
920  VALUE time, const struct vtm *vtm, VALUE timev, int gmt)
921 {
922  VALUE result = rb_enc_str_new(0, 0, enc);
923  return rb_strftime_with_timespec(result, format, format_len, enc,
924  time, vtm, timev, NULL, gmt,
925  strftime_size_limit(format_len));
926 }
927 
928 VALUE
929 rb_strftime_timespec(const char *format, size_t format_len, rb_encoding *enc,
930  VALUE time, const struct vtm *vtm, struct timespec *ts, int gmt)
931 {
932  VALUE result = rb_enc_str_new(0, 0, enc);
933  return rb_strftime_with_timespec(result, format, format_len, enc,
934  time, vtm, Qnil, ts, gmt,
935  strftime_size_limit(format_len));
936 }
937 
938 #if 0
939 VALUE
940 rb_strftime_limit(const char *format, size_t format_len, rb_encoding *enc,
941  VALUE time, const struct vtm *vtm, struct timespec *ts,
942  int gmt, size_t maxsize)
943 {
944  VALUE result = rb_enc_str_new(0, 0, enc);
945  return rb_strftime_with_timespec(result, format, format_len, enc,
946  time, vtm, Qnil, ts, gmt, maxsize);
947 }
948 #endif
949 
950 /* isleap --- is a year a leap year? */
951 
952 static int
953 isleap(long year)
954 {
955  return ((year % 4 == 0 && year % 100 != 0) || year % 400 == 0);
956 }
957 
958 
959 static void
960 vtm2tm_noyear(const struct vtm *vtm, struct tm *result)
961 {
962  struct tm tm;
963 
964  /* for isleap() in iso8601wknum. +100 is -1900 (mod 400). */
965  tm.tm_year = FIX2INT(mod(vtm->year, INT2FIX(400))) + 100;
966 
967  tm.tm_mon = vtm->mon-1;
968  tm.tm_mday = vtm->mday;
969  tm.tm_hour = vtm->hour;
970  tm.tm_min = vtm->min;
971  tm.tm_sec = vtm->sec;
972  tm.tm_wday = vtm->wday;
973  tm.tm_yday = vtm->yday-1;
974  tm.tm_isdst = vtm->isdst;
975 #if defined(HAVE_STRUCT_TM_TM_GMTOFF)
976  tm.tm_gmtoff = NUM2LONG(vtm->utc_offset);
977 #endif
978 #if defined(HAVE_TM_ZONE)
979  tm.tm_zone = (char *)vtm->zone;
980 #endif
981  *result = tm;
982 }
983 
984 #ifdef POSIX2_DATE
985 /* iso8601wknum --- compute week number according to ISO 8601 */
986 
987 static int
988 iso8601wknum(const struct tm *timeptr)
989 {
990  /*
991  * From 1003.2:
992  * If the week (Monday to Sunday) containing January 1
993  * has four or more days in the new year, then it is week 1;
994  * otherwise it is the highest numbered week of the previous
995  * year (52 or 53), and the next week is week 1.
996  *
997  * ADR: This means if Jan 1 was Monday through Thursday,
998  * it was week 1, otherwise week 52 or 53.
999  *
1000  * XPG4 erroneously included POSIX.2 rationale text in the
1001  * main body of the standard. Thus it requires week 53.
1002  */
1003 
1004  int weeknum, jan1day;
1005 
1006  /* get week number, Monday as first day of the week */
1007  weeknum = weeknumber(timeptr, 1);
1008 
1009  /*
1010  * With thanks and tip of the hatlo to tml@tik.vtt.fi
1011  *
1012  * What day of the week does January 1 fall on?
1013  * We know that
1014  * (timeptr->tm_yday - jan1.tm_yday) MOD 7 ==
1015  * (timeptr->tm_wday - jan1.tm_wday) MOD 7
1016  * and that
1017  * jan1.tm_yday == 0
1018  * and that
1019  * timeptr->tm_wday MOD 7 == timeptr->tm_wday
1020  * from which it follows that. . .
1021  */
1022  jan1day = timeptr->tm_wday - (timeptr->tm_yday % 7);
1023  if (jan1day < 0)
1024  jan1day += 7;
1025 
1026  /*
1027  * If Jan 1 was a Monday through Thursday, it was in
1028  * week 1. Otherwise it was last year's highest week, which is
1029  * this year's week 0.
1030  *
1031  * What does that mean?
1032  * If Jan 1 was Monday, the week number is exactly right, it can
1033  * never be 0.
1034  * If it was Tuesday through Thursday, the weeknumber is one
1035  * less than it should be, so we add one.
1036  * Otherwise, Friday, Saturday or Sunday, the week number is
1037  * OK, but if it is 0, it needs to be 52 or 53.
1038  */
1039  switch (jan1day) {
1040  case 1: /* Monday */
1041  break;
1042  case 2: /* Tuesday */
1043  case 3: /* Wednesday */
1044  case 4: /* Thursday */
1045  weeknum++;
1046  break;
1047  case 5: /* Friday */
1048  case 6: /* Saturday */
1049  case 0: /* Sunday */
1050  if (weeknum == 0) {
1051 #ifdef USE_BROKEN_XPG4
1052  /* XPG4 (as of March 1994) says 53 unconditionally */
1053  weeknum = 53;
1054 #else
1055  /* get week number of last week of last year */
1056  struct tm dec31ly; /* 12/31 last year */
1057  dec31ly = *timeptr;
1058  dec31ly.tm_year--;
1059  dec31ly.tm_mon = 11;
1060  dec31ly.tm_mday = 31;
1061  dec31ly.tm_wday = (jan1day == 0) ? 6 : jan1day - 1;
1062  dec31ly.tm_yday = 364 + isleap(dec31ly.tm_year + 1900L);
1063  weeknum = iso8601wknum(& dec31ly);
1064 #endif
1065  }
1066  break;
1067  }
1068 
1069  if (timeptr->tm_mon == 11) {
1070  /*
1071  * The last week of the year
1072  * can be in week 1 of next year.
1073  * Sigh.
1074  *
1075  * This can only happen if
1076  * M T W
1077  * 29 30 31
1078  * 30 31
1079  * 31
1080  */
1081  int wday, mday;
1082 
1083  wday = timeptr->tm_wday;
1084  mday = timeptr->tm_mday;
1085  if ( (wday == 1 && (mday >= 29 && mday <= 31))
1086  || (wday == 2 && (mday == 30 || mday == 31))
1087  || (wday == 3 && mday == 31))
1088  weeknum = 1;
1089  }
1090 
1091  return weeknum;
1092 }
1093 
1094 static int
1095 iso8601wknum_v(const struct vtm *vtm)
1096 {
1097  struct tm tm;
1098  vtm2tm_noyear(vtm, &tm);
1099  return iso8601wknum(&tm);
1100 }
1101 
1102 #endif
1103 
1104 /* weeknumber --- figure how many weeks into the year */
1105 
1106 /* With thanks and tip of the hatlo to ado@elsie.nci.nih.gov */
1107 
1108 static int
1109 weeknumber(const struct tm *timeptr, int firstweekday)
1110 {
1111  int wday = timeptr->tm_wday;
1112  int ret;
1113 
1114  if (firstweekday == 1) {
1115  if (wday == 0) /* sunday */
1116  wday = 6;
1117  else
1118  wday--;
1119  }
1120  ret = ((timeptr->tm_yday + 7 - wday) / 7);
1121  if (ret < 0)
1122  ret = 0;
1123  return ret;
1124 }
1125 
1126 static int
1127 weeknumber_v(const struct vtm *vtm, int firstweekday)
1128 {
1129  struct tm tm;
1130  vtm2tm_noyear(vtm, &tm);
1131  return weeknumber(&tm, firstweekday);
1132 }
1133 
1134 #if 0
1135 /* ADR --- I'm loathe to mess with ado's code ... */
1136 
1137 Date: Wed, 24 Apr 91 20:54:08 MDT
1138 From: Michal Jaegermann <audfax!emory!vm.ucs.UAlberta.CA!NTOMCZAK>
1139 To: arnold@audiofax.com
1140 
1141 Hi Arnold,
1142 in a process of fixing of strftime() in libraries on Atari ST I grabbed
1143 some pieces of code from your own strftime. When doing that it came
1144 to mind that your weeknumber() function compiles a little bit nicer
1145 in the following form:
1146 /*
1147  * firstweekday is 0 if starting in Sunday, non-zero if in Monday
1148  */
1149 {
1150  return (timeptr->tm_yday - timeptr->tm_wday +
1151  (firstweekday ? (timeptr->tm_wday ? 8 : 1) : 7)) / 7;
1152 }
1153 How nicer it depends on a compiler, of course, but always a tiny bit.
1154 
1155  Cheers,
1156  Michal
1157  ntomczak@vm.ucs.ualberta.ca
1158 #endif
1159 
1160 #ifdef TEST_STRFTIME
1161 
1162 /*
1163  * NAME:
1164  * tst
1165  *
1166  * SYNOPSIS:
1167  * tst
1168  *
1169  * DESCRIPTION:
1170  * "tst" is a test driver for the function "strftime".
1171  *
1172  * OPTIONS:
1173  * None.
1174  *
1175  * AUTHOR:
1176  * Karl Vogel
1177  * Control Data Systems, Inc.
1178  * vogelke@c-17igp.wpafb.af.mil
1179  *
1180  * BUGS:
1181  * None noticed yet.
1182  *
1183  * COMPILE:
1184  * cc -o tst -DTEST_STRFTIME strftime.c
1185  */
1186 
1187 /* ADR: I reformatted this to my liking, and deleted some unneeded code. */
1188 
1189 #ifndef NULL
1190 #include <stdio.h>
1191 #endif
1192 #include <sys/time.h>
1193 #include <string.h>
1194 
1195 #define MAXTIME 132
1196 
1197 /*
1198  * Array of time formats.
1199  */
1200 
1201 static char *array[] =
1202 {
1203  "(%%A) full weekday name, var length (Sunday..Saturday) %A",
1204  "(%%B) full month name, var length (January..December) %B",
1205  "(%%C) Century %C",
1206  "(%%D) date (%%m/%%d/%%y) %D",
1207  "(%%E) Locale extensions (ignored) %E",
1208  "(%%H) hour (24-hour clock, 00..23) %H",
1209  "(%%I) hour (12-hour clock, 01..12) %I",
1210  "(%%M) minute (00..59) %M",
1211  "(%%O) Locale extensions (ignored) %O",
1212  "(%%R) time, 24-hour (%%H:%%M) %R",
1213  "(%%S) second (00..60) %S",
1214  "(%%T) time, 24-hour (%%H:%%M:%%S) %T",
1215  "(%%U) week of year, Sunday as first day of week (00..53) %U",
1216  "(%%V) week of year according to ISO 8601 %V",
1217  "(%%W) week of year, Monday as first day of week (00..53) %W",
1218  "(%%X) appropriate locale time representation (%H:%M:%S) %X",
1219  "(%%Y) year with century (1970...) %Y",
1220  "(%%Z) timezone (EDT), or blank if timezone not determinable %Z",
1221  "(%%a) locale's abbreviated weekday name (Sun..Sat) %a",
1222  "(%%b) locale's abbreviated month name (Jan..Dec) %b",
1223  "(%%c) full date (Sat Nov 4 12:02:33 1989)%n%t%t%t %c",
1224  "(%%d) day of the month (01..31) %d",
1225  "(%%e) day of the month, blank-padded ( 1..31) %e",
1226  "(%%h) should be same as (%%b) %h",
1227  "(%%j) day of the year (001..366) %j",
1228  "(%%k) hour, 24-hour clock, blank pad ( 0..23) %k",
1229  "(%%l) hour, 12-hour clock, blank pad ( 1..12) %l",
1230  "(%%m) month (01..12) %m",
1231  "(%%p) locale's AM or PM based on 12-hour clock %p",
1232  "(%%r) time, 12-hour (same as %%I:%%M:%%S %%p) %r",
1233  "(%%u) ISO 8601: Weekday as decimal number [1 (Monday) - 7] %u",
1234  "(%%v) VMS date (dd-bbb-YYYY) %v",
1235  "(%%w) day of week (0..6, Sunday == 0) %w",
1236  "(%%x) appropriate locale date representation %x",
1237  "(%%y) last two digits of year (00..99) %y",
1238  "(%%z) timezone offset east of GMT as HHMM (e.g. -0500) %z",
1239  (char *) NULL
1240 };
1241 
1242 /* main routine. */
1243 
1244 int
1245 main(int argc, char **argv)
1246 {
1247  long time();
1248 
1249  char *next;
1250  char string[MAXTIME];
1251 
1252  int k;
1253  int length;
1254 
1255  struct tm *tm;
1256 
1257  long clock;
1258 
1259  /* Call the function. */
1260 
1261  clock = time((long *) 0);
1262  tm = localtime(&clock);
1263 
1264  for (k = 0; next = array[k]; k++) {
1265  length = strftime(string, MAXTIME, next, tm);
1266  printf("%s\n", string);
1267  }
1268 
1269  exit(0);
1270 }
1271 #endif /* TEST_STRFTIME */
FLAG_FOUND
#define FLAG_FOUND()
void
void
Definition: rb_mjit_min_header-2.7.0.h:13273
time_t
long time_t
Definition: rb_mjit_min_header-2.7.0.h:1236
BIT_OF
#define BIT_OF(n)
Definition: strftime.c:161
FIX2INT
#define FIX2INT(x)
Definition: ruby.h:717
mod
#define mod(x, y)
Definition: strftime.c:156
tm::tm_min
int tm_min
Definition: rb_mjit_min_header-2.7.0.h:1935
memset
void * memset(void *, int, size_t)
INT2FIX
#define INT2FIX(i)
Definition: ruby.h:263
snprintf
int snprintf(char *__restrict, size_t, const char *__restrict,...) __attribute__((__format__(__printf__
strchr
char * strchr(char *, char)
localtime
struct tm * localtime(const time_t *_timer)
FILL_PADDING
#define FILL_PADDING(i)
RSTRING_PTR
#define RSTRING_PTR(str)
Definition: ruby.h:1009
time
time_t time(time_t *_timer)
NUM2LONG
#define NUM2LONG(x)
Definition: ruby.h:679
rb_locale_encoding
rb_encoding * rb_locale_encoding(void)
Definition: encoding.c:1372
tm::tm_wday
int tm_wday
Definition: rb_mjit_min_header-2.7.0.h:1940
VALUE
unsigned long VALUE
Definition: ruby.h:102
encoding.h
rb_intern
#define rb_intern(str)
malloc
void * malloc(size_t) __attribute__((__malloc__)) __attribute__((__warn_unused_result__)) __attribute__((__alloc_size__(1)))
RB_TYPE_P
#define RB_TYPE_P(obj, type)
Definition: ruby.h:560
ERANGE
#define ERANGE
Definition: rb_mjit_min_header-2.7.0.h:10971
ECONV_UNDEF_REPLACE
#define ECONV_UNDEF_REPLACE
Definition: encoding.h:396
UPPER
@ UPPER
Definition: strftime.c:160
int
__inline__ int
Definition: rb_mjit_min_header-2.7.0.h:2839
STRFTIME
#define STRFTIME(fmt)
zone
Definition: zonetab.h:35
getenv
#define getenv(name)
Definition: win32.c:73
tm::tm_sec
int tm_sec
Definition: rb_mjit_min_header-2.7.0.h:1934
CHCASE
@ CHCASE
Definition: strftime.c:160
div
#define div(x, y)
Definition: strftime.c:155
rb_Integer
VALUE rb_Integer(VALUE)
Equivalent to Kernel#Integer in Ruby.
Definition: object.c:3106
clock
clock_t clock(void)
printf
int int int printf(const char *__restrict,...) __attribute__((__format__(__printf__
NULL
#define NULL
Definition: _sdbm.c:101
exit
void exit(int __status) __attribute__((__noreturn__))
tm::tm_mon
int tm_mon
Definition: rb_mjit_min_header-2.7.0.h:1938
ruby_scan_digits
RUBY_EXTERN unsigned long ruby_scan_digits(const char *str, ssize_t len, int base, size_t *retlen, int *overflow)
Definition: util.c:97
FMT
#define FMT(def_pad, def_prec, fmt, val)
tm::tm_mday
int tm_mday
Definition: rb_mjit_min_header-2.7.0.h:1937
FIX2LONG
#define FIX2LONG(x)
Definition: ruby.h:394
ruby.h
strlen
size_t strlen(const char *)
LEFT
@ LEFT
Definition: strftime.c:160
tm::tm_hour
int tm_hour
Definition: rb_mjit_min_header-2.7.0.h:1936
L
#define L(x)
Definition: asm.h:125
timespec::tv_nsec
long tv_nsec
Definition: missing.h:62
rb_str_capacity
size_t rb_str_capacity(VALUE str)
Definition: string.c:712
rb_str_resize
VALUE rb_str_resize(VALUE, long)
Definition: string.c:2709
TOUPPER
#define TOUPPER(c)
Definition: ruby.h:2318
rb_str_conv_enc_opts
VALUE rb_str_conv_enc_opts(VALUE str, rb_encoding *from, rb_encoding *to, int ecflags, VALUE ecopts)
Definition: string.c:914
timev.h
adddecl
#define adddecl(stuff)
Definition: strftime.c:95
rb_str_format
VALUE rb_str_format(int, const VALUE *, VALUE)
Definition: sprintf.c:204
realloc
void * realloc(void *, size_t) __attribute__((__warn_unused_result__)) __attribute__((__alloc_size__(2)))
memcpy
void * memcpy(void *__restrict, const void *__restrict, size_t)
tm::tm_isdst
int tm_isdst
Definition: rb_mjit_min_header-2.7.0.h:1942
FMTV
#define FMTV(def_pad, def_prec, fmt, val)
rb_ascii8bit_encoding
rb_encoding * rb_ascii8bit_encoding(void)
Definition: encoding.c:1316
timespec::tv_sec
time_t tv_sec
Definition: missing.h:61
rb_encoding
const typedef OnigEncodingType rb_encoding
Definition: encoding.h:115
ISUPPER
#define ISUPPER(c)
Definition: ruby.h:2308
LOWER
@ LOWER
Definition: strftime.c:160
strftime
size_t strftime(char *__restrict _s, size_t _maxsize, const char *__restrict _fmt, const struct tm *__restrict _t)
PRI_TIMET_PREFIX
#define PRI_TIMET_PREFIX
Definition: ruby.h:174
TBUFSIZE
#define TBUFSIZE
i
uint32_t i
Definition: rb_mjit_min_header-2.7.0.h:5464
INT_MAX
#define INT_MAX
Definition: rb_mjit_min_header-2.7.0.h:4052
NEEDS
#define NEEDS(n)
strlcpy
RUBY_EXTERN size_t strlcpy(char *, const char *, size_t)
Definition: strlcpy.c:29
rb_str_set_len
void rb_str_set_len(VALUE, long)
Definition: string.c:2692
FIXNUM_P
#define FIXNUM_P(f)
Definition: ruby.h:396
ISLOWER
#define ISLOWER(c)
Definition: ruby.h:2309
rb_str_new_cstr
#define rb_str_new_cstr(str)
Definition: rb_mjit_min_header-2.7.0.h:6117
mul
#define mul(x, y)
Definition: strftime.c:153
StringValueCStr
#define StringValueCStr(v)
Definition: ruby.h:604
STDC_HEADERS
#define STDC_HEADERS
Definition: fficonfig.h:22
I
#define I(x, y, z)
range
#define range(low, item, hi)
fmt
const VALUE int int int int int int VALUE char * fmt
Definition: rb_mjit_min_header-2.7.0.h:6462
add
#define add(x, y)
Definition: strftime.c:151
n
const char size_t n
Definition: rb_mjit_min_header-2.7.0.h:5456
T_BIGNUM
#define T_BIGNUM
Definition: ruby.h:533
rb_funcall
#define rb_funcall(recv, mid, argc,...)
Definition: rb_mjit_min_header-2.7.0.h:6585
internal.h
argv
char ** argv
Definition: ruby.c:223
rb_strftime
VALUE rb_strftime(const char *format, size_t format_len, rb_encoding *enc, VALUE time, const struct vtm *vtm, VALUE timev, int gmt)
Definition: strftime.c:919
str
char str[HTML_ESCAPE_MAX_LEN+1]
Definition: escape.c:18
rb_time_zone_abbreviation
VALUE rb_time_zone_abbreviation(VALUE zone, VALUE time)
Definition: time.c:5650
NIL_P
#define NIL_P(v)
Definition: ruby.h:482
rb_str_modify_expand
void rb_str_modify_expand(VALUE, long)
Definition: string.c:2122
argc
int argc
Definition: ruby.c:222
rb_big2str
VALUE rb_big2str(VALUE x, int base)
Definition: bignum.c:5091
rb_strftime_timespec
VALUE rb_strftime_timespec(const char *format, size_t format_len, rb_encoding *enc, VALUE time, const struct vtm *vtm, struct timespec *ts, int gmt)
Definition: strftime.c:929
err
int err
Definition: win32.c:135
tm
Definition: rb_mjit_min_header-2.7.0.h:1932
tm::tm_year
int tm_year
Definition: rb_mjit_min_header-2.7.0.h:1939
len
uint8_t len
Definition: escape.c:17
tm::tm_yday
int tm_yday
Definition: rb_mjit_min_header-2.7.0.h:1941
TOLOWER
#define TOLOWER(c)
Definition: ruby.h:2319
timespec
Definition: missing.h:60
ECONV_INVALID_REPLACE
#define ECONV_INVALID_REPLACE
Definition: encoding.h:394
NUM2INT
#define NUM2INT(x)
Definition: ruby.h:715
Qnil
#define Qnil
Definition: ruby.h:469
rb_fstring_lit
#define rb_fstring_lit(str)
Definition: internal.h:2123
tm::tm_gmtoff
long tm_gmtoff
Definition: rb_mjit_min_header-2.7.0.h:1943
sub
#define sub(x, y)
Definition: strftime.c:152
RSTRING_LEN
#define RSTRING_LEN(str)
Definition: ruby.h:1005
ptrdiff_t
long int ptrdiff_t
Definition: rb_mjit_min_header-2.7.0.h:802
tm::tm_zone
const char * tm_zone
Definition: rb_mjit_min_header-2.7.0.h:1944
rb_enc_str_new
VALUE rb_enc_str_new(const char *, long, rb_encoding *)
Definition: string.c:796
main
int main(void)
Definition: closure_fn0.c:49
rb_usascii_encoding
rb_encoding * rb_usascii_encoding(void)
Definition: encoding.c:1340
rb_syserr_fail_str
void rb_syserr_fail_str(int e, VALUE mesg)
Definition: error.c:2787
memchr
void * memchr(const void *, int, size_t)