forked from schacon/perl
-
Notifications
You must be signed in to change notification settings - Fork 0
/
util.c
2260 lines (2013 loc) · 44.8 KB
/
util.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/* util.c
*
* Copyright (c) 1991-1997, Larry Wall
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
*
*/
/*
* "Very useful, no doubt, that was to Saruman; yet it seems that he was
* not content." --Gandalf
*/
#include "EXTERN.h"
#include "perl.h"
#if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX)
#include <signal.h>
#endif
#ifndef SIG_ERR
# define SIG_ERR ((Sighandler_t) -1)
#endif
/* XXX If this causes problems, set i_unistd=undef in the hint file. */
#ifdef I_UNISTD
# include <unistd.h>
#endif
#ifdef I_VFORK
# include <vfork.h>
#endif
/* Put this after #includes because fork and vfork prototypes may
conflict.
*/
#ifndef HAS_VFORK
# define vfork fork
#endif
#ifdef I_FCNTL
# include <fcntl.h>
#endif
#ifdef I_SYS_FILE
# include <sys/file.h>
#endif
#ifdef I_SYS_WAIT
# include <sys/wait.h>
#endif
#define FLUSH
#ifdef LEAKTEST
static void xstat _((void));
#endif
#ifndef MYMALLOC
/* paranoid version of malloc */
/* NOTE: Do not call the next three routines directly. Use the macros
* in handy.h, so that we can easily redefine everything to do tracking of
* allocated hunks back to the original New to track down any memory leaks.
* XXX This advice seems to be widely ignored :-( --AD August 1996.
*/
Malloc_t
safemalloc(size)
MEM_SIZE size;
{
Malloc_t ptr;
#ifdef HAS_64K_LIMIT
if (size > 0xffff) {
PerlIO_printf(PerlIO_stderr(), "Allocation too large: %lx\n", size) FLUSH;
my_exit(1);
}
#endif /* HAS_64K_LIMIT */
#ifdef DEBUGGING
if ((long)size < 0)
croak("panic: malloc");
#endif
ptr = malloc(size?size:1); /* malloc(0) is NASTY on our system */
#if !(defined(I286) || defined(atarist))
DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%x: (%05d) malloc %ld bytes\n",ptr,an++,(long)size));
#else
DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) malloc %ld bytes\n",ptr,an++,(long)size));
#endif
if (ptr != Nullch)
return ptr;
else if (nomemok)
return Nullch;
else {
PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH;
my_exit(1);
}
/*NOTREACHED*/
}
/* paranoid version of realloc */
Malloc_t
saferealloc(where,size)
Malloc_t where;
MEM_SIZE size;
{
Malloc_t ptr;
#if !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE)
Malloc_t realloc();
#endif /* !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE) */
#ifdef HAS_64K_LIMIT
if (size > 0xffff) {
PerlIO_printf(PerlIO_stderr(),
"Reallocation too large: %lx\n", size) FLUSH;
my_exit(1);
}
#endif /* HAS_64K_LIMIT */
if (!where)
croak("Null realloc");
#ifdef DEBUGGING
if ((long)size < 0)
croak("panic: realloc");
#endif
ptr = realloc(where,size?size:1); /* realloc(0) is NASTY on our system */
#if !(defined(I286) || defined(atarist))
DEBUG_m( {
PerlIO_printf(Perl_debug_log, "0x%x: (%05d) rfree\n",where,an++);
PerlIO_printf(Perl_debug_log, "0x%x: (%05d) realloc %ld bytes\n",ptr,an++,(long)size);
} )
#else
DEBUG_m( {
PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) rfree\n",where,an++);
PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) realloc %ld bytes\n",ptr,an++,(long)size);
} )
#endif
if (ptr != Nullch)
return ptr;
else if (nomemok)
return Nullch;
else {
PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH;
my_exit(1);
}
/*NOTREACHED*/
}
/* safe version of free */
Free_t
safefree(where)
Malloc_t where;
{
#if !(defined(I286) || defined(atarist))
DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%x: (%05d) free\n",where,an++));
#else
DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) free\n",where,an++));
#endif
if (where) {
/*SUPPRESS 701*/
free(where);
}
}
/* safe version of calloc */
Malloc_t
safecalloc(count, size)
MEM_SIZE count;
MEM_SIZE size;
{
Malloc_t ptr;
#ifdef HAS_64K_LIMIT
if (size * count > 0xffff) {
PerlIO_printf(PerlIO_stderr(),
"Allocation too large: %lx\n", size * count) FLUSH;
my_exit(1);
}
#endif /* HAS_64K_LIMIT */
#ifdef DEBUGGING
if ((long)size < 0 || (long)count < 0)
croak("panic: calloc");
#endif
#if !(defined(I286) || defined(atarist))
DEBUG_m(PerlIO_printf(PerlIO_stderr(), "0x%x: (%05d) calloc %ld x %ld bytes\n",ptr,an++,(long)count,(long)size));
#else
DEBUG_m(PerlIO_printf(PerlIO_stderr(), "0x%lx: (%05d) calloc %ld x %ld bytes\n",ptr,an++,(long)count,(long)size));
#endif
size *= count;
ptr = malloc(size?size:1); /* malloc(0) is NASTY on our system */
if (ptr != Nullch) {
memset((void*)ptr, 0, size);
return ptr;
}
else if (nomemok)
return Nullch;
else {
PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH;
my_exit(1);
}
/*NOTREACHED*/
}
#endif /* !MYMALLOC */
#ifdef LEAKTEST
#define ALIGN sizeof(long)
Malloc_t
safexmalloc(x,size)
I32 x;
MEM_SIZE size;
{
register Malloc_t where;
where = safemalloc(size + ALIGN);
xcount[x]++;
where[0] = x % 100;
where[1] = x / 100;
return where + ALIGN;
}
Malloc_t
safexrealloc(where,size)
Malloc_t where;
MEM_SIZE size;
{
register Malloc_t new = saferealloc(where - ALIGN, size + ALIGN);
return new + ALIGN;
}
void
safexfree(where)
Malloc_t where;
{
I32 x;
if (!where)
return;
where -= ALIGN;
x = where[0] + 100 * where[1];
xcount[x]--;
safefree(where);
}
Malloc_t
safexcalloc(x,count,size)
I32 x;
MEM_SIZE count;
MEM_SIZE size;
{
register Malloc_t where;
where = safexmalloc(x, size * count + ALIGN);
xcount[x]++;
memset((void*)where + ALIGN, 0, size * count);
where[0] = x % 100;
where[1] = x / 100;
return where + ALIGN;
}
static void
xstat()
{
register I32 i;
for (i = 0; i < MAXXCOUNT; i++) {
if (xcount[i] > lastxcount[i]) {
PerlIO_printf(PerlIO_stderr(),"%2d %2d\t%ld\n", i / 100, i % 100, xcount[i]);
lastxcount[i] = xcount[i];
}
}
}
#endif /* LEAKTEST */
/* copy a string up to some (non-backslashed) delimiter, if any */
char *
cpytill(to,from,fromend,delim,retlen)
register char *to;
register char *from;
register char *fromend;
register int delim;
I32 *retlen;
{
char *origto = to;
for (; from < fromend; from++,to++) {
if (*from == '\\') {
if (from[1] == delim)
from++;
else if (from[1] == '\\')
*to++ = *from++;
}
else if (*from == delim)
break;
*to = *from;
}
*to = '\0';
*retlen = to - origto;
return from;
}
/* return ptr to little string in big string, NULL if not found */
/* This routine was donated by Corey Satten. */
char *
instr(big, little)
register char *big;
register char *little;
{
register char *s, *x;
register I32 first;
if (!little)
return big;
first = *little++;
if (!first)
return big;
while (*big) {
if (*big++ != first)
continue;
for (x=big,s=little; *s; /**/ ) {
if (!*x)
return Nullch;
if (*s++ != *x++) {
s--;
break;
}
}
if (!*s)
return big-1;
}
return Nullch;
}
/* same as instr but allow embedded nulls */
char *
ninstr(big, bigend, little, lend)
register char *big;
register char *bigend;
char *little;
char *lend;
{
register char *s, *x;
register I32 first = *little;
register char *littleend = lend;
if (!first && little >= littleend)
return big;
if (bigend - big < littleend - little)
return Nullch;
bigend -= littleend - little++;
while (big <= bigend) {
if (*big++ != first)
continue;
for (x=big,s=little; s < littleend; /**/ ) {
if (*s++ != *x++) {
s--;
break;
}
}
if (s >= littleend)
return big-1;
}
return Nullch;
}
/* reverse of the above--find last substring */
char *
rninstr(big, bigend, little, lend)
register char *big;
char *bigend;
char *little;
char *lend;
{
register char *bigbeg;
register char *s, *x;
register I32 first = *little;
register char *littleend = lend;
if (!first && little >= littleend)
return bigend;
bigbeg = big;
big = bigend - (littleend - little++);
while (big >= bigbeg) {
if (*big-- != first)
continue;
for (x=big+2,s=little; s < littleend; /**/ ) {
if (*s++ != *x++) {
s--;
break;
}
}
if (s >= littleend)
return big+1;
}
return Nullch;
}
/*
* Set up for a new ctype locale.
*/
void
perl_new_ctype(newctype)
char *newctype;
{
#ifdef USE_LOCALE_CTYPE
int i;
for (i = 0; i < 256; i++) {
if (isUPPER_LC(i))
fold_locale[i] = toLOWER_LC(i);
else if (isLOWER_LC(i))
fold_locale[i] = toUPPER_LC(i);
else
fold_locale[i] = i;
}
#endif /* USE_LOCALE_CTYPE */
}
/*
* Set up for a new collation locale.
*/
void
perl_new_collate(newcoll)
char *newcoll;
{
#ifdef USE_LOCALE_COLLATE
if (! newcoll) {
if (collation_name) {
++collation_ix;
Safefree(collation_name);
collation_name = NULL;
collation_standard = TRUE;
collxfrm_base = 0;
collxfrm_mult = 2;
}
return;
}
if (! collation_name || strNE(collation_name, newcoll)) {
++collation_ix;
Safefree(collation_name);
collation_name = savepv(newcoll);
collation_standard = (strEQ(newcoll, "C") || strEQ(newcoll, "POSIX"));
{
/* 2: at most so many chars ('a', 'b'). */
/* 50: surely no system expands a char more. */
#define XFRMBUFSIZE (2 * 50)
char xbuf[XFRMBUFSIZE];
Size_t fa = strxfrm(xbuf, "a", XFRMBUFSIZE);
Size_t fb = strxfrm(xbuf, "ab", XFRMBUFSIZE);
SSize_t mult = fb - fa;
if (mult < 1)
croak("strxfrm() gets absurd");
collxfrm_base = (fa > mult) ? (fa - mult) : 0;
collxfrm_mult = mult;
}
}
#endif /* USE_LOCALE_COLLATE */
}
/*
* Set up for a new numeric locale.
*/
void
perl_new_numeric(newnum)
char *newnum;
{
#ifdef USE_LOCALE_NUMERIC
if (! newnum) {
if (numeric_name) {
Safefree(numeric_name);
numeric_name = NULL;
numeric_standard = TRUE;
numeric_local = TRUE;
}
return;
}
if (! numeric_name || strNE(numeric_name, newnum)) {
Safefree(numeric_name);
numeric_name = savepv(newnum);
numeric_standard = (strEQ(newnum, "C") || strEQ(newnum, "POSIX"));
numeric_local = TRUE;
}
#endif /* USE_LOCALE_NUMERIC */
}
void
perl_set_numeric_standard()
{
#ifdef USE_LOCALE_NUMERIC
if (! numeric_standard) {
setlocale(LC_NUMERIC, "C");
numeric_standard = TRUE;
numeric_local = FALSE;
}
#endif /* USE_LOCALE_NUMERIC */
}
void
perl_set_numeric_local()
{
#ifdef USE_LOCALE_NUMERIC
if (! numeric_local) {
setlocale(LC_NUMERIC, numeric_name);
numeric_standard = FALSE;
numeric_local = TRUE;
}
#endif /* USE_LOCALE_NUMERIC */
}
/*
* Initialize locale awareness.
*/
int
perl_init_i18nl10n(printwarn)
int printwarn;
{
int ok = 1;
/* returns
* 1 = set ok or not applicable,
* 0 = fallback to C locale,
* -1 = fallback to C locale failed
*/
#ifdef USE_LOCALE
#ifdef USE_LOCALE_CTYPE
char *curctype = NULL;
#endif /* USE_LOCALE_CTYPE */
#ifdef USE_LOCALE_COLLATE
char *curcoll = NULL;
#endif /* USE_LOCALE_COLLATE */
#ifdef USE_LOCALE_NUMERIC
char *curnum = NULL;
#endif /* USE_LOCALE_NUMERIC */
char *lc_all = getenv("LC_ALL");
char *lang = getenv("LANG");
bool setlocale_failure = FALSE;
#ifdef LOCALE_ENVIRON_REQUIRED
/*
* Ultrix setlocale(..., "") fails if there are no environment
* variables from which to get a locale name.
*/
bool done = FALSE;
#ifdef LC_ALL
if (lang) {
if (setlocale(LC_ALL, ""))
done = TRUE;
else
setlocale_failure = TRUE;
}
if (!setlocale_failure)
#endif /* LC_ALL */
{
#ifdef USE_LOCALE_CTYPE
if (! (curctype = setlocale(LC_CTYPE,
(!done && (lang || getenv("LC_CTYPE")))
? "" : Nullch)))
setlocale_failure = TRUE;
#endif /* USE_LOCALE_CTYPE */
#ifdef USE_LOCALE_COLLATE
if (! (curcoll = setlocale(LC_COLLATE,
(!done && (lang || getenv("LC_COLLATE")))
? "" : Nullch)))
setlocale_failure = TRUE;
#endif /* USE_LOCALE_COLLATE */
#ifdef USE_LOCALE_NUMERIC
if (! (curnum = setlocale(LC_NUMERIC,
(!done && (lang || getenv("LC_NUMERIC")))
? "" : Nullch)))
setlocale_failure = TRUE;
#endif /* USE_LOCALE_NUMERIC */
}
#else /* !LOCALE_ENVIRON_REQUIRED */
#ifdef LC_ALL
if (! setlocale(LC_ALL, ""))
setlocale_failure = TRUE;
else {
#ifdef USE_LOCALE_CTYPE
curctype = setlocale(LC_CTYPE, Nullch);
#endif /* USE_LOCALE_CTYPE */
#ifdef USE_LOCALE_COLLATE
curcoll = setlocale(LC_COLLATE, Nullch);
#endif /* USE_LOCALE_COLLATE */
#ifdef USE_LOCALE_NUMERIC
curnum = setlocale(LC_NUMERIC, Nullch);
#endif /* USE_LOCALE_NUMERIC */
}
#else /* !LC_ALL */
#ifdef USE_LOCALE_CTYPE
if (! (curctype = setlocale(LC_CTYPE, "")))
setlocale_failure = TRUE;
#endif /* USE_LOCALE_CTYPE */
#ifdef USE_LOCALE_COLLATE
if (! (curcoll = setlocale(LC_COLLATE, "")))
setlocale_failure = TRUE;
#endif /* USE_LOCALE_COLLATE */
#ifdef USE_LOCALE_NUMERIC
if (! (curnum = setlocale(LC_NUMERIC, "")))
setlocale_failure = TRUE;
#endif /* USE_LOCALE_NUMERIC */
#endif /* LC_ALL */
#endif /* !LOCALE_ENVIRON_REQUIRED */
if (setlocale_failure) {
char *p;
bool locwarn = (printwarn > 1 ||
printwarn &&
(!(p = getenv("PERL_BADLANG")) || atoi(p)));
if (locwarn) {
#ifdef LC_ALL
PerlIO_printf(PerlIO_stderr(),
"perl: warning: Setting locale failed.\n");
#else /* !LC_ALL */
PerlIO_printf(PerlIO_stderr(),
"perl: warning: Setting locale failed for the categories:\n\t");
#ifdef USE_LOCALE_CTYPE
if (! curctype)
PerlIO_printf(PerlIO_stderr(), "LC_CTYPE ");
#endif /* USE_LOCALE_CTYPE */
#ifdef USE_LOCALE_COLLATE
if (! curcoll)
PerlIO_printf(PerlIO_stderr(), "LC_COLLATE ");
#endif /* USE_LOCALE_COLLATE */
#ifdef USE_LOCALE_NUMERIC
if (! curnum)
PerlIO_printf(PerlIO_stderr(), "LC_NUMERIC ");
#endif /* USE_LOCALE_NUMERIC */
PerlIO_printf(PerlIO_stderr(), "\n");
#endif /* LC_ALL */
PerlIO_printf(PerlIO_stderr(),
"perl: warning: Please check that your locale settings:\n");
PerlIO_printf(PerlIO_stderr(),
"\tLC_ALL = %c%s%c,\n",
lc_all ? '"' : '(',
lc_all ? lc_all : "unset",
lc_all ? '"' : ')');
{
char **e;
for (e = environ; *e; e++) {
if (strnEQ(*e, "LC_", 3)
&& strnNE(*e, "LC_ALL=", 7)
&& (p = strchr(*e, '=')))
PerlIO_printf(PerlIO_stderr(), "\t%.*s = \"%s\",\n",
(p - *e), *e, p + 1);
}
}
PerlIO_printf(PerlIO_stderr(),
"\tLANG = %c%s%c\n",
lang ? '"' : '(',
lang ? lang : "unset",
lang ? '"' : ')');
PerlIO_printf(PerlIO_stderr(),
" are supported and installed on your system.\n");
}
#ifdef LC_ALL
if (setlocale(LC_ALL, "C")) {
if (locwarn)
PerlIO_printf(PerlIO_stderr(),
"perl: warning: Falling back to the standard locale (\"C\").\n");
ok = 0;
}
else {
if (locwarn)
PerlIO_printf(PerlIO_stderr(),
"perl: warning: Failed to fall back to the standard locale (\"C\").\n");
ok = -1;
}
#else /* ! LC_ALL */
if (0
#ifdef USE_LOCALE_CTYPE
|| !(curctype || setlocale(LC_CTYPE, "C"))
#endif /* USE_LOCALE_CTYPE */
#ifdef USE_LOCALE_COLLATE
|| !(curcoll || setlocale(LC_COLLATE, "C"))
#endif /* USE_LOCALE_COLLATE */
#ifdef USE_LOCALE_NUMERIC
|| !(curnum || setlocale(LC_NUMERIC, "C"))
#endif /* USE_LOCALE_NUMERIC */
)
{
if (locwarn)
PerlIO_printf(PerlIO_stderr(),
"perl: warning: Cannot fall back to the standard locale (\"C\").\n");
ok = -1;
}
#endif /* ! LC_ALL */
#ifdef USE_LOCALE_CTYPE
curctype = setlocale(LC_CTYPE, Nullch);
#endif /* USE_LOCALE_CTYPE */
#ifdef USE_LOCALE_COLLATE
curcoll = setlocale(LC_COLLATE, Nullch);
#endif /* USE_LOCALE_COLLATE */
#ifdef USE_LOCALE_NUMERIC
curnum = setlocale(LC_NUMERIC, Nullch);
#endif /* USE_LOCALE_NUMERIC */
}
#ifdef USE_LOCALE_CTYPE
perl_new_ctype(curctype);
#endif /* USE_LOCALE_CTYPE */
#ifdef USE_LOCALE_COLLATE
perl_new_collate(curcoll);
#endif /* USE_LOCALE_COLLATE */
#ifdef USE_LOCALE_NUMERIC
perl_new_numeric(curnum);
#endif /* USE_LOCALE_NUMERIC */
#endif /* USE_LOCALE */
return ok;
}
/* Backwards compatibility. */
int
perl_init_i18nl14n(printwarn)
int printwarn;
{
return perl_init_i18nl10n(printwarn);
}
#ifdef USE_LOCALE_COLLATE
/*
* mem_collxfrm() is a bit like strxfrm() but with two important
* differences. First, it handles embedded NULs. Second, it allocates
* a bit more memory than needed for the transformed data itself.
* The real transformed data begins at offset sizeof(collationix).
* Please see sv_collxfrm() to see how this is used.
*/
char *
mem_collxfrm(s, len, xlen)
const char *s;
STRLEN len;
STRLEN *xlen;
{
char *xbuf;
STRLEN xalloc, xin, xout;
/* the first sizeof(collationix) bytes are used by sv_collxfrm(). */
/* the +1 is for the terminating NUL. */
xalloc = sizeof(collation_ix) + collxfrm_base + (collxfrm_mult * len) + 1;
New(171, xbuf, xalloc, char);
if (! xbuf)
goto bad;
*(U32*)xbuf = collation_ix;
xout = sizeof(collation_ix);
for (xin = 0; xin < len; ) {
SSize_t xused;
for (;;) {
xused = strxfrm(xbuf + xout, s + xin, xalloc - xout);
if (xused == -1)
goto bad;
if (xused < xalloc - xout)
break;
xalloc = (2 * xalloc) + 1;
Renew(xbuf, xalloc, char);
if (! xbuf)
goto bad;
}
xin += strlen(s + xin) + 1;
xout += xused;
/* Embedded NULs are understood but silently skipped
* because they make no sense in locale collation. */
}
xbuf[xout] = '\0';
*xlen = xout - sizeof(collation_ix);
return xbuf;
bad:
Safefree(xbuf);
*xlen = 0;
return NULL;
}
#endif /* USE_LOCALE_COLLATE */
void
fbm_compile(sv)
SV *sv;
{
register unsigned char *s;
register unsigned char *table;
register U32 i;
register U32 len = SvCUR(sv);
I32 rarest = 0;
U32 frequency = 256;
if (len > 255)
return; /* can't have offsets that big */
Sv_Grow(sv,len+258);
table = (unsigned char*)(SvPVX(sv) + len + 1);
s = table - 2;
for (i = 0; i < 256; i++) {
table[i] = len;
}
i = 0;
while (s >= (unsigned char*)(SvPVX(sv)))
{
if (table[*s] == len)
table[*s] = i;
s--,i++;
}
sv_upgrade(sv, SVt_PVBM);
sv_magic(sv, Nullsv, 'B', Nullch, 0); /* deep magic */
SvVALID_on(sv);
s = (unsigned char*)(SvPVX(sv)); /* deeper magic */
for (i = 0; i < len; i++) {
if (freq[s[i]] < frequency) {
rarest = i;
frequency = freq[s[i]];
}
}
BmRARE(sv) = s[rarest];
BmPREVIOUS(sv) = rarest;
DEBUG_r(PerlIO_printf(Perl_debug_log, "rarest char %c at %d\n",BmRARE(sv),BmPREVIOUS(sv)));
}
char *
fbm_instr(big, bigend, littlestr)
unsigned char *big;
register unsigned char *bigend;
SV *littlestr;
{
register unsigned char *s;
register I32 tmp;
register I32 littlelen;
register unsigned char *little;
register unsigned char *table;
register unsigned char *olds;
register unsigned char *oldlittle;
if (SvTYPE(littlestr) != SVt_PVBM || !SvVALID(littlestr)) {
STRLEN len;
char *l = SvPV(littlestr,len);
if (!len)
return (char*)big;
return ninstr((char*)big,(char*)bigend, l, l + len);
}
littlelen = SvCUR(littlestr);
if (SvTAIL(littlestr) && !multiline) { /* tail anchored? */
if (littlelen > bigend - big)
return Nullch;
little = (unsigned char*)SvPVX(littlestr);
s = bigend - littlelen;
if (*s == *little && memEQ((char*)s,(char*)little,littlelen))
return (char*)s; /* how sweet it is */
else if (bigend[-1] == '\n' && little[littlelen-1] != '\n'
&& s > big) {
s--;
if (*s == *little && memEQ((char*)s,(char*)little,littlelen))
return (char*)s;
}
return Nullch;
}
table = (unsigned char*)(SvPVX(littlestr) + littlelen + 1);
if (--littlelen >= bigend - big)
return Nullch;
s = big + littlelen;
oldlittle = little = table - 2;
if (s < bigend) {
top2:
/*SUPPRESS 560*/
if (tmp = table[*s]) {
#ifdef POINTERRIGOR
if (bigend - s > tmp) {
s += tmp;
goto top2;
}
#else
if ((s += tmp) < bigend)
goto top2;
#endif
return Nullch;
}
else {
tmp = littlelen; /* less expensive than calling strncmp() */
olds = s;
while (tmp--) {
if (*--s == *--little)
continue;
s = olds + 1; /* here we pay the price for failure */
little = oldlittle;
if (s < bigend) /* fake up continue to outer loop */
goto top2;
return Nullch;
}
return (char *)s;
}
}
return Nullch;
}
char *
screaminstr(bigstr, littlestr)
SV *bigstr;
SV *littlestr;
{
register unsigned char *s, *x;
register unsigned char *big;
register I32 pos;
register I32 previous;
register I32 first;
register unsigned char *little;
register unsigned char *bigend;
register unsigned char *littleend;
if ((pos = screamfirst[BmRARE(littlestr)]) < 0)
return Nullch;
little = (unsigned char *)(SvPVX(littlestr));
littleend = little + SvCUR(littlestr);
first = *little++;
previous = BmPREVIOUS(littlestr);
big = (unsigned char *)(SvPVX(bigstr));
bigend = big + SvCUR(bigstr);
while (pos < previous) {
if (!(pos += screamnext[pos]))
return Nullch;
}
#ifdef POINTERRIGOR
do {
if (big[pos-previous] != first)
continue;
for (x=big+pos+1-previous,s=little; s < littleend; /**/ ) {
if (x >= bigend)
return Nullch;
if (*s++ != *x++) {
s--;
break;
}
}
if (s == littleend)
return (char *)(big+pos-previous);
} while ( pos += screamnext[pos] );
#else /* !POINTERRIGOR */
big -= previous;
do {
if (big[pos] != first)
continue;