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Make new_numeric() static
[perl5.git] / vutil.c
CommitLineData
abc6d738
FC
1/* This file is part of the "version" CPAN distribution. Please avoid
2 editing it in the perl core. */
3
14f3031b
JP
4#ifdef PERL_CORE
5# include "vutil.h"
d4e59e62 6#endif
d4e59e62 7
abc6d738
FC
8#define VERSION_MAX 0x7FFFFFFF
9
10/*
11=for apidoc prescan_version
12
13Validate that a given string can be parsed as a version object, but doesn't
14actually perform the parsing. Can use either strict or lax validation rules.
15Can optionally set a number of hint variables to save the parsing code
16some time when tokenizing.
17
18=cut
19*/
20const char *
24120986 21#ifdef VUTIL_REPLACE_CORE
d4e59e62
FC
22Perl_prescan_version2(pTHX_ const char *s, bool strict,
23#else
abc6d738 24Perl_prescan_version(pTHX_ const char *s, bool strict,
d4e59e62 25#endif
abc6d738
FC
26 const char **errstr,
27 bool *sqv, int *ssaw_decimal, int *swidth, bool *salpha) {
28 bool qv = (sqv ? *sqv : FALSE);
29 int width = 3;
30 int saw_decimal = 0;
31 bool alpha = FALSE;
32 const char *d = s;
33
130cad93
LT
34 PERL_ARGS_ASSERT_PRESCAN_VERSION;
35 PERL_UNUSED_CONTEXT;
abc6d738
FC
36
37 if (qv && isDIGIT(*d))
38 goto dotted_decimal_version;
39
40 if (*d == 'v') { /* explicit v-string */
41 d++;
42 if (isDIGIT(*d)) {
43 qv = TRUE;
44 }
45 else { /* degenerate v-string */
46 /* requires v1.2.3 */
47 BADVERSION(s,errstr,"Invalid version format (dotted-decimal versions require at least three parts)");
48 }
49
50dotted_decimal_version:
51 if (strict && d[0] == '0' && isDIGIT(d[1])) {
52 /* no leading zeros allowed */
53 BADVERSION(s,errstr,"Invalid version format (no leading zeros)");
54 }
55
56 while (isDIGIT(*d)) /* integer part */
57 d++;
58
59 if (*d == '.')
60 {
61 saw_decimal++;
62 d++; /* decimal point */
63 }
64 else
65 {
66 if (strict) {
67 /* require v1.2.3 */
68 BADVERSION(s,errstr,"Invalid version format (dotted-decimal versions require at least three parts)");
69 }
70 else {
71 goto version_prescan_finish;
72 }
73 }
74
75 {
76 int i = 0;
77 int j = 0;
78 while (isDIGIT(*d)) { /* just keep reading */
79 i++;
80 while (isDIGIT(*d)) {
81 d++; j++;
82 /* maximum 3 digits between decimal */
83 if (strict && j > 3) {
84 BADVERSION(s,errstr,"Invalid version format (maximum 3 digits between decimals)");
85 }
86 }
87 if (*d == '_') {
88 if (strict) {
89 BADVERSION(s,errstr,"Invalid version format (no underscores)");
90 }
91 if ( alpha ) {
92 BADVERSION(s,errstr,"Invalid version format (multiple underscores)");
93 }
94 d++;
95 alpha = TRUE;
96 }
97 else if (*d == '.') {
98 if (alpha) {
99 BADVERSION(s,errstr,"Invalid version format (underscores before decimal)");
100 }
101 saw_decimal++;
102 d++;
103 }
104 else if (!isDIGIT(*d)) {
105 break;
106 }
107 j = 0;
108 }
109
110 if (strict && i < 2) {
111 /* requires v1.2.3 */
112 BADVERSION(s,errstr,"Invalid version format (dotted-decimal versions require at least three parts)");
113 }
114 }
115 } /* end if dotted-decimal */
116 else
117 { /* decimal versions */
118 int j = 0; /* may need this later */
119 /* special strict case for leading '.' or '0' */
120 if (strict) {
121 if (*d == '.') {
122 BADVERSION(s,errstr,"Invalid version format (0 before decimal required)");
123 }
124 if (*d == '0' && isDIGIT(d[1])) {
125 BADVERSION(s,errstr,"Invalid version format (no leading zeros)");
126 }
127 }
128
129 /* and we never support negative versions */
130 if ( *d == '-') {
131 BADVERSION(s,errstr,"Invalid version format (negative version number)");
132 }
133
134 /* consume all of the integer part */
135 while (isDIGIT(*d))
136 d++;
137
138 /* look for a fractional part */
139 if (*d == '.') {
140 /* we found it, so consume it */
141 saw_decimal++;
142 d++;
143 }
144 else if (!*d || *d == ';' || isSPACE(*d) || *d == '{' || *d == '}') {
145 if ( d == s ) {
146 /* found nothing */
147 BADVERSION(s,errstr,"Invalid version format (version required)");
148 }
149 /* found just an integer */
150 goto version_prescan_finish;
151 }
152 else if ( d == s ) {
153 /* didn't find either integer or period */
154 BADVERSION(s,errstr,"Invalid version format (non-numeric data)");
155 }
156 else if (*d == '_') {
157 /* underscore can't come after integer part */
158 if (strict) {
159 BADVERSION(s,errstr,"Invalid version format (no underscores)");
160 }
161 else if (isDIGIT(d[1])) {
162 BADVERSION(s,errstr,"Invalid version format (alpha without decimal)");
163 }
164 else {
165 BADVERSION(s,errstr,"Invalid version format (misplaced underscore)");
166 }
167 }
168 else {
169 /* anything else after integer part is just invalid data */
170 BADVERSION(s,errstr,"Invalid version format (non-numeric data)");
171 }
172
173 /* scan the fractional part after the decimal point*/
174
175 if (!isDIGIT(*d) && (strict || ! (!*d || *d == ';' || isSPACE(*d) || *d == '{' || *d == '}') )) {
176 /* strict or lax-but-not-the-end */
177 BADVERSION(s,errstr,"Invalid version format (fractional part required)");
178 }
179
180 while (isDIGIT(*d)) {
181 d++; j++;
182 if (*d == '.' && isDIGIT(d[-1])) {
183 if (alpha) {
184 BADVERSION(s,errstr,"Invalid version format (underscores before decimal)");
185 }
186 if (strict) {
187 BADVERSION(s,errstr,"Invalid version format (dotted-decimal versions must begin with 'v')");
188 }
189 d = (char *)s; /* start all over again */
190 qv = TRUE;
191 goto dotted_decimal_version;
192 }
193 if (*d == '_') {
194 if (strict) {
195 BADVERSION(s,errstr,"Invalid version format (no underscores)");
196 }
197 if ( alpha ) {
198 BADVERSION(s,errstr,"Invalid version format (multiple underscores)");
199 }
200 if ( ! isDIGIT(d[1]) ) {
201 BADVERSION(s,errstr,"Invalid version format (misplaced underscore)");
202 }
203 width = j;
204 d++;
205 alpha = TRUE;
206 }
207 }
208 }
209
210version_prescan_finish:
211 while (isSPACE(*d))
212 d++;
213
214 if (!isDIGIT(*d) && (! (!*d || *d == ';' || *d == '{' || *d == '}') )) {
215 /* trailing non-numeric data */
216 BADVERSION(s,errstr,"Invalid version format (non-numeric data)");
217 }
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JP
218 if (saw_decimal > 1 && d[-1] == '.') {
219 /* no trailing period allowed */
220 BADVERSION(s,errstr,"Invalid version format (trailing decimal)");
221 }
222
abc6d738
FC
223
224 if (sqv)
225 *sqv = qv;
226 if (swidth)
227 *swidth = width;
228 if (ssaw_decimal)
229 *ssaw_decimal = saw_decimal;
230 if (salpha)
231 *salpha = alpha;
232 return d;
233}
234
235/*
236=for apidoc scan_version
237
238Returns a pointer to the next character after the parsed
239version string, as well as upgrading the passed in SV to
240an RV.
241
242Function must be called with an already existing SV like
243
244 sv = newSV(0);
245 s = scan_version(s, SV *sv, bool qv);
246
247Performs some preprocessing to the string to ensure that
248it has the correct characteristics of a version. Flags the
249object if it contains an underscore (which denotes this
250is an alpha version). The boolean qv denotes that the version
251should be interpreted as if it had multiple decimals, even if
252it doesn't.
253
254=cut
255*/
256
257const char *
24120986 258#ifdef VUTIL_REPLACE_CORE
d4e59e62
FC
259Perl_scan_version2(pTHX_ const char *s, SV *rv, bool qv)
260#else
abc6d738 261Perl_scan_version(pTHX_ const char *s, SV *rv, bool qv)
d4e59e62 262#endif
abc6d738
FC
263{
264 const char *start = s;
265 const char *pos;
266 const char *last;
267 const char *errstr = NULL;
268 int saw_decimal = 0;
269 int width = 3;
270 bool alpha = FALSE;
271 bool vinf = FALSE;
272 AV * av;
273 SV * hv;
274
275 PERL_ARGS_ASSERT_SCAN_VERSION;
276
277 while (isSPACE(*s)) /* leading whitespace is OK */
278 s++;
279
d4e59e62 280 last = PRESCAN_VERSION(s, FALSE, &errstr, &qv, &saw_decimal, &width, &alpha);
abc6d738
FC
281 if (errstr) {
282 /* "undef" is a special case and not an error */
05402f6b 283 if ( ! ( *s == 'u' && strEQ(s+1,"ndef")) ) {
abc6d738
FC
284 Perl_croak(aTHX_ "%s", errstr);
285 }
286 }
287
288 start = s;
289 if (*s == 'v')
290 s++;
291 pos = s;
292
293 /* Now that we are through the prescan, start creating the object */
294 av = newAV();
295 hv = newSVrv(rv, "version"); /* create an SV and upgrade the RV */
296 (void)sv_upgrade(hv, SVt_PVHV); /* needs to be an HV type */
297
298#ifndef NODEFAULT_SHAREKEYS
299 HvSHAREKEYS_on(hv); /* key-sharing on by default */
300#endif
301
302 if ( qv )
303 (void)hv_stores(MUTABLE_HV(hv), "qv", newSViv(qv));
304 if ( alpha )
305 (void)hv_stores(MUTABLE_HV(hv), "alpha", newSViv(alpha));
306 if ( !qv && width < 3 )
307 (void)hv_stores(MUTABLE_HV(hv), "width", newSViv(width));
308
14f3031b 309 while (isDIGIT(*pos) || *pos == '_')
abc6d738
FC
310 pos++;
311 if (!isALPHA(*pos)) {
312 I32 rev;
313
314 for (;;) {
315 rev = 0;
316 {
317 /* this is atoi() that delimits on underscores */
318 const char *end = pos;
319 I32 mult = 1;
320 I32 orev;
321
322 /* the following if() will only be true after the decimal
323 * point of a version originally created with a bare
324 * floating point number, i.e. not quoted in any way
325 */
326 if ( !qv && s > start && saw_decimal == 1 ) {
327 mult *= 100;
328 while ( s < end ) {
14f3031b
JP
329 if (*s == '_')
330 continue;
abc6d738
FC
331 orev = rev;
332 rev += (*s - '0') * mult;
333 mult /= 10;
334 if ( (PERL_ABS(orev) > PERL_ABS(rev))
335 || (PERL_ABS(rev) > VERSION_MAX )) {
336 Perl_ck_warner(aTHX_ packWARN(WARN_OVERFLOW),
337 "Integer overflow in version %d",VERSION_MAX);
338 s = end - 1;
339 rev = VERSION_MAX;
340 vinf = 1;
341 }
342 s++;
343 if ( *s == '_' )
344 s++;
345 }
346 }
347 else {
348 while (--end >= s) {
14f3031b
JP
349 int i;
350 if (*end == '_')
351 continue;
352 i = (*end - '0');
353 if ( (mult == VERSION_MAX)
354 || (i > VERSION_MAX / mult)
355 || (i * mult > VERSION_MAX - rev))
356 {
abc6d738
FC
357 Perl_ck_warner(aTHX_ packWARN(WARN_OVERFLOW),
358 "Integer overflow in version");
359 end = s - 1;
360 rev = VERSION_MAX;
361 vinf = 1;
362 }
14f3031b
JP
363 else
364 rev += i * mult;
365
366 if (mult > VERSION_MAX / 10)
367 mult = VERSION_MAX;
368 else
369 mult *= 10;
abc6d738
FC
370 }
371 }
372 }
373
374 /* Append revision */
375 av_push(av, newSViv(rev));
376 if ( vinf ) {
377 s = last;
378 break;
379 }
14f3031b
JP
380 else if ( *pos == '.' ) {
381 pos++;
382 if (qv) {
383 while (*pos == '0')
384 ++pos;
385 }
386 s = pos;
387 }
abc6d738
FC
388 else if ( *pos == '_' && isDIGIT(pos[1]) )
389 s = ++pos;
390 else if ( *pos == ',' && isDIGIT(pos[1]) )
391 s = ++pos;
392 else if ( isDIGIT(*pos) )
393 s = pos;
394 else {
395 s = pos;
396 break;
397 }
398 if ( qv ) {
14f3031b 399 while ( isDIGIT(*pos) || *pos == '_')
abc6d738
FC
400 pos++;
401 }
402 else {
403 int digits = 0;
404 while ( ( isDIGIT(*pos) || *pos == '_' ) && digits < 3 ) {
405 if ( *pos != '_' )
406 digits++;
407 pos++;
408 }
409 }
410 }
411 }
412 if ( qv ) { /* quoted versions always get at least three terms*/
05402f6b 413 SSize_t len = AvFILLp(av);
abc6d738
FC
414 /* This for loop appears to trigger a compiler bug on OS X, as it
415 loops infinitely. Yes, len is negative. No, it makes no sense.
416 Compiler in question is:
417 gcc version 3.3 20030304 (Apple Computer, Inc. build 1640)
418 for ( len = 2 - len; len > 0; len-- )
419 av_push(MUTABLE_AV(sv), newSViv(0));
420 */
421 len = 2 - len;
422 while (len-- > 0)
423 av_push(av, newSViv(0));
424 }
425
426 /* need to save off the current version string for later */
427 if ( vinf ) {
428 SV * orig = newSVpvn("v.Inf", sizeof("v.Inf")-1);
429 (void)hv_stores(MUTABLE_HV(hv), "original", orig);
430 (void)hv_stores(MUTABLE_HV(hv), "vinf", newSViv(1));
431 }
432 else if ( s > start ) {
433 SV * orig = newSVpvn(start,s-start);
434 if ( qv && saw_decimal == 1 && *start != 'v' ) {
435 /* need to insert a v to be consistent */
436 sv_insert(orig, 0, 0, "v", 1);
437 }
438 (void)hv_stores(MUTABLE_HV(hv), "original", orig);
439 }
440 else {
441 (void)hv_stores(MUTABLE_HV(hv), "original", newSVpvs("0"));
442 av_push(av, newSViv(0));
443 }
444
445 /* And finally, store the AV in the hash */
446 (void)hv_stores(MUTABLE_HV(hv), "version", newRV_noinc(MUTABLE_SV(av)));
447
448 /* fix RT#19517 - special case 'undef' as string */
05402f6b 449 if ( *s == 'u' && strEQ(s+1,"ndef") ) {
abc6d738
FC
450 s += 5;
451 }
452
453 return s;
454}
455
456/*
457=for apidoc new_version
458
459Returns a new version object based on the passed in SV:
460
461 SV *sv = new_version(SV *ver);
462
463Does not alter the passed in ver SV. See "upg_version" if you
464want to upgrade the SV.
465
466=cut
467*/
468
469SV *
24120986 470#ifdef VUTIL_REPLACE_CORE
d4e59e62
FC
471Perl_new_version2(pTHX_ SV *ver)
472#else
abc6d738 473Perl_new_version(pTHX_ SV *ver)
d4e59e62 474#endif
abc6d738 475{
abc6d738
FC
476 SV * const rv = newSV(0);
477 PERL_ARGS_ASSERT_NEW_VERSION;
05402f6b 478 if ( ISA_VERSION_OBJ(ver) ) /* can just copy directly */
abc6d738
FC
479 {
480 SSize_t key;
481 AV * const av = newAV();
482 AV *sav;
483 /* This will get reblessed later if a derived class*/
484 SV * const hv = newSVrv(rv, "version");
485 (void)sv_upgrade(hv, SVt_PVHV); /* needs to be an HV type */
486#ifndef NODEFAULT_SHAREKEYS
487 HvSHAREKEYS_on(hv); /* key-sharing on by default */
488#endif
489
490 if ( SvROK(ver) )
491 ver = SvRV(ver);
492
493 /* Begin copying all of the elements */
817794ed 494 if ( hv_exists(MUTABLE_HV(ver), "qv", 2) )
abc6d738
FC
495 (void)hv_stores(MUTABLE_HV(hv), "qv", newSViv(1));
496
817794ed 497 if ( hv_exists(MUTABLE_HV(ver), "alpha", 5) )
abc6d738 498 (void)hv_stores(MUTABLE_HV(hv), "alpha", newSViv(1));
abc6d738 499 {
05402f6b
JP
500 SV ** svp = hv_fetchs(MUTABLE_HV(ver), "width", FALSE);
501 if(svp) {
502 const I32 width = SvIV(*svp);
503 (void)hv_stores(MUTABLE_HV(hv), "width", newSViv(width));
504 }
abc6d738 505 }
abc6d738 506 {
05402f6b
JP
507 SV ** svp = hv_fetchs(MUTABLE_HV(ver), "original", FALSE);
508 if(svp)
509 (void)hv_stores(MUTABLE_HV(hv), "original", newSVsv(*svp));
abc6d738 510 }
abc6d738
FC
511 sav = MUTABLE_AV(SvRV(*hv_fetchs(MUTABLE_HV(ver), "version", FALSE)));
512 /* This will get reblessed later if a derived class*/
513 for ( key = 0; key <= av_len(sav); key++ )
514 {
05402f6b
JP
515 SV * const sv = *av_fetch(sav, key, FALSE);
516 const I32 rev = SvIV(sv);
abc6d738
FC
517 av_push(av, newSViv(rev));
518 }
519
520 (void)hv_stores(MUTABLE_HV(hv), "version", newRV_noinc(MUTABLE_SV(av)));
521 return rv;
522 }
523#ifdef SvVOK
524 {
525 const MAGIC* const mg = SvVSTRING_mg(ver);
526 if ( mg ) { /* already a v-string */
527 const STRLEN len = mg->mg_len;
05402f6b 528 const char * const version = (const char*)mg->mg_ptr;
14f3031b
JP
529 char *raw, *under;
530 static const char underscore[] = "_";
abc6d738 531 sv_setpvn(rv,version,len);
14f3031b
JP
532 raw = SvPV_nolen(rv);
533 under = ninstr(raw, raw+len, underscore, underscore + 1);
534 if (under) {
535 Move(under + 1, under, raw + len - under - 1, char);
536 SvCUR(rv)--;
537 *SvEND(rv) = '\0';
538 }
abc6d738
FC
539 /* this is for consistency with the pure Perl class */
540 if ( isDIGIT(*version) )
541 sv_insert(rv, 0, 0, "v", 1);
abc6d738
FC
542 }
543 else {
544#endif
95a23f5d 545 SvSetSV_nosteal(rv, ver); /* make a duplicate */
abc6d738
FC
546#ifdef SvVOK
547 }
548 }
549#endif
9190f8ab
JP
550 sv_2mortal(rv); /* in case upg_version croaks before it returns */
551 return SvREFCNT_inc_NN(UPG_VERSION(rv, FALSE));
abc6d738
FC
552}
553
554/*
555=for apidoc upg_version
556
557In-place upgrade of the supplied SV to a version object.
558
559 SV *sv = upg_version(SV *sv, bool qv);
560
561Returns a pointer to the upgraded SV. Set the boolean qv if you want
562to force this SV to be interpreted as an "extended" version.
563
564=cut
565*/
566
567SV *
24120986 568#ifdef VUTIL_REPLACE_CORE
d4e59e62
FC
569Perl_upg_version2(pTHX_ SV *ver, bool qv)
570#else
abc6d738 571Perl_upg_version(pTHX_ SV *ver, bool qv)
d4e59e62 572#endif
abc6d738
FC
573{
574 const char *version, *s;
575#ifdef SvVOK
576 const MAGIC *mg;
577#endif
578
d2b110e6 579#if PERL_VERSION_LT(5,19,8) && defined(USE_ITHREADS)
e2ca569e 580 ENTER;
d2b110e6 581#endif
abc6d738
FC
582 PERL_ARGS_ASSERT_UPG_VERSION;
583
9190f8ab
JP
584 if ( (SvUOK(ver) && SvUVX(ver) > VERSION_MAX)
585 || (SvIOK(ver) && SvIVX(ver) > VERSION_MAX) ) {
586 /* out of bounds [unsigned] integer */
587 STRLEN len;
588 char tbuf[64];
589 len = my_snprintf(tbuf, sizeof(tbuf), "%d", VERSION_MAX);
590 version = savepvn(tbuf, len);
591 SAVEFREEPV(version);
592 Perl_ck_warner(aTHX_ packWARN(WARN_OVERFLOW),
593 "Integer overflow in version %d",VERSION_MAX);
594 }
595 else if ( SvUOK(ver) || SvIOK(ver))
24120986 596#if PERL_VERSION_LT(5,17,2)
9190f8ab 597VER_IV:
24120986 598#endif
9190f8ab
JP
599 {
600 version = savesvpv(ver);
601 SAVEFREEPV(version);
602 }
603 else if (SvNOK(ver) && !( SvPOK(ver) && SvCUR(ver) == 3 ) )
24120986 604#if PERL_VERSION_LT(5,17,2)
9190f8ab 605VER_NV:
24120986 606#endif
abc6d738
FC
607 {
608 STRLEN len;
609
610 /* may get too much accuracy */
611 char tbuf[64];
612 SV *sv = SvNVX(ver) > 10e50 ? newSV(64) : 0;
613 char *buf;
14f3031b
JP
614
615#if PERL_VERSION_GE(5,19,0)
616 if (SvPOK(ver)) {
617 /* dualvar? */
618 goto VER_PV;
619 }
620#endif
f57000bc 621#ifdef USE_LOCALE_NUMERIC
190ce35b
KW
622
623 {
624 /* This may or may not be called from code that has switched
625 * locales without letting perl know, therefore we have to find it
626 * from first principals. See [perl #121930]. */
627
628 /* if it isn't C, set it to C. */
629 const char * locale_name_on_entry;
630
631 locale_name_on_entry = setlocale(LC_NUMERIC, NULL);
632 if ( strNE(locale_name_on_entry, "C")
633 && strNE(locale_name_on_entry, "POSIX"))
634 {
635 setlocale(LC_NUMERIC, "C");
636 }
637 else { /* This value indicates to the restore code that we didn't
638 change the locale */
639 locale_name_on_entry = NULL;
640 }
641 /* Prevent recursed calls from trying to change back */
642 LOCK_LC_NUMERIC_STANDARD();
643
f57000bc 644#endif
190ce35b 645
b9a25d15
KW
646 if (sv) {
647 Perl_sv_catpvf(aTHX_ sv, "%.9" NVff, SvNVX(ver));
648 len = SvCUR(sv);
649 buf = SvPVX(sv);
650 }
651 else {
652 len = my_snprintf(tbuf, sizeof(tbuf), "%.9" NVff, SvNVX(ver));
653 buf = tbuf;
654 }
190ce35b
KW
655
656#ifdef USE_LOCALE_NUMERIC
657
658 UNLOCK_LC_NUMERIC_STANDARD();
659
660 if (locale_name_on_entry) {
661 setlocale(LC_NUMERIC, locale_name_on_entry);
662 }
f57000bc 663 }
190ce35b
KW
664
665#endif /* USE_LOCALE_NUMERIC */
666
abc6d738
FC
667 while (buf[len-1] == '0' && len > 0) len--;
668 if ( buf[len-1] == '.' ) len--; /* eat the trailing decimal */
669 version = savepvn(buf, len);
05402f6b 670 SAVEFREEPV(version);
abc6d738
FC
671 SvREFCNT_dec(sv);
672 }
673#ifdef SvVOK
674 else if ( (mg = SvVSTRING_mg(ver)) ) { /* already a v-string */
675 version = savepvn( (const char*)mg->mg_ptr,mg->mg_len );
05402f6b 676 SAVEFREEPV(version);
abc6d738
FC
677 qv = TRUE;
678 }
679#endif
9190f8ab
JP
680 else if ( SvPOK(ver))/* must be a string or something like a string */
681VER_PV:
abc6d738
FC
682 {
683 STRLEN len;
4141ef59 684 version = savepvn(SvPV(ver,len), SvCUR(ver));
05402f6b 685 SAVEFREEPV(version);
abc6d738
FC
686#ifndef SvVOK
687# if PERL_VERSION > 5
688 /* This will only be executed for 5.6.0 - 5.8.0 inclusive */
689 if ( len >= 3 && !instr(version,".") && !instr(version,"_")) {
690 /* may be a v-string */
691 char *testv = (char *)version;
692 STRLEN tlen = len;
693 for (tlen=0; tlen < len; tlen++, testv++) {
694 /* if one of the characters is non-text assume v-string */
695 if (testv[0] < ' ') {
696 SV * const nsv = sv_newmortal();
697 const char *nver;
698 const char *pos;
699 int saw_decimal = 0;
700 sv_setpvf(nsv,"v%vd",ver);
701 pos = nver = savepv(SvPV_nolen(nsv));
05402f6b 702 SAVEFREEPV(pos);
abc6d738
FC
703
704 /* scan the resulting formatted string */
705 pos++; /* skip the leading 'v' */
706 while ( *pos == '.' || isDIGIT(*pos) ) {
707 if ( *pos == '.' )
708 saw_decimal++ ;
709 pos++;
710 }
711
712 /* is definitely a v-string */
713 if ( saw_decimal >= 2 ) {
abc6d738
FC
714 version = nver;
715 }
716 break;
717 }
718 }
719 }
720# endif
721#endif
722 }
9190f8ab
JP
723#if PERL_VERSION_LT(5,17,2)
724 else if (SvIOKp(ver)) {
725 goto VER_IV;
726 }
727 else if (SvNOKp(ver)) {
728 goto VER_NV;
729 }
730 else if (SvPOKp(ver)) {
731 goto VER_PV;
732 }
733#endif
ab4e0d4b
JP
734 else
735 {
736 /* no idea what this is */
737 Perl_croak(aTHX_ "Invalid version format (non-numeric data)");
738 }
abc6d738 739
d4e59e62 740 s = SCAN_VERSION(version, ver, qv);
abc6d738
FC
741 if ( *s != '\0' )
742 Perl_ck_warner(aTHX_ packWARN(WARN_MISC),
743 "Version string '%s' contains invalid data; "
744 "ignoring: '%s'", version, s);
d2b110e6
JP
745
746#if PERL_VERSION_LT(5,19,8) && defined(USE_ITHREADS)
e2ca569e 747 LEAVE;
d2b110e6 748#endif
9190f8ab 749
abc6d738
FC
750 return ver;
751}
752
753/*
754=for apidoc vverify
755
756Validates that the SV contains valid internal structure for a version object.
757It may be passed either the version object (RV) or the hash itself (HV). If
758the structure is valid, it returns the HV. If the structure is invalid,
759it returns NULL.
760
761 SV *hv = vverify(sv);
762
763Note that it only confirms the bare minimum structure (so as not to get
764confused by derived classes which may contain additional hash entries):
765
766=over 4
767
768=item * The SV is an HV or a reference to an HV
769
770=item * The hash contains a "version" key
771
772=item * The "version" key has a reference to an AV as its value
773
774=back
775
776=cut
777*/
778
779SV *
24120986 780#ifdef VUTIL_REPLACE_CORE
d4e59e62
FC
781Perl_vverify2(pTHX_ SV *vs)
782#else
abc6d738 783Perl_vverify(pTHX_ SV *vs)
d4e59e62 784#endif
abc6d738
FC
785{
786 SV *sv;
05402f6b 787 SV **svp;
abc6d738
FC
788
789 PERL_ARGS_ASSERT_VVERIFY;
790
791 if ( SvROK(vs) )
792 vs = SvRV(vs);
793
794 /* see if the appropriate elements exist */
795 if ( SvTYPE(vs) == SVt_PVHV
05402f6b
JP
796 && (svp = hv_fetchs(MUTABLE_HV(vs), "version", FALSE))
797 && (sv = SvRV(*svp))
abc6d738
FC
798 && SvTYPE(sv) == SVt_PVAV )
799 return vs;
800 else
801 return NULL;
802}
803
804/*
805=for apidoc vnumify
806
807Accepts a version object and returns the normalized floating
808point representation. Call like:
809
810 sv = vnumify(rv);
811
812NOTE: you can pass either the object directly or the SV
813contained within the RV.
814
815The SV returned has a refcount of 1.
816
817=cut
818*/
819
820SV *
24120986 821#ifdef VUTIL_REPLACE_CORE
d4e59e62
FC
822Perl_vnumify2(pTHX_ SV *vs)
823#else
abc6d738 824Perl_vnumify(pTHX_ SV *vs)
d4e59e62 825#endif
abc6d738
FC
826{
827 SSize_t i, len;
828 I32 digit;
abc6d738
FC
829 bool alpha = FALSE;
830 SV *sv;
831 AV *av;
832
833 PERL_ARGS_ASSERT_VNUMIFY;
834
835 /* extract the HV from the object */
d4e59e62 836 vs = VVERIFY(vs);
abc6d738
FC
837 if ( ! vs )
838 Perl_croak(aTHX_ "Invalid version object");
839
840 /* see if various flags exist */
817794ed 841 if ( hv_exists(MUTABLE_HV(vs), "alpha", 5 ) )
abc6d738 842 alpha = TRUE;
abc6d738 843
14f3031b
JP
844 if (alpha) {
845 Perl_ck_warner(aTHX_ packWARN(WARN_NUMERIC),
846 "alpha->numify() is lossy");
847 }
abc6d738
FC
848
849 /* attempt to retrieve the version array */
850 if ( !(av = MUTABLE_AV(SvRV(*hv_fetchs(MUTABLE_HV(vs), "version", FALSE))) ) ) {
851 return newSVpvs("0");
852 }
853
854 len = av_len(av);
855 if ( len == -1 )
856 {
857 return newSVpvs("0");
858 }
859
05402f6b
JP
860 {
861 SV * tsv = *av_fetch(av, 0, 0);
862 digit = SvIV(tsv);
863 }
abc6d738 864 sv = Perl_newSVpvf(aTHX_ "%d.", (int)PERL_ABS(digit));
14f3031b 865 for ( i = 1 ; i <= len ; i++ )
abc6d738 866 {
05402f6b
JP
867 SV * tsv = *av_fetch(av, i, 0);
868 digit = SvIV(tsv);
14f3031b 869 Perl_sv_catpvf(aTHX_ sv, "%03d", (int)digit);
abc6d738
FC
870 }
871
14f3031b 872 if ( len == 0 ) {
abc6d738
FC
873 sv_catpvs(sv, "000");
874 }
875 return sv;
876}
877
878/*
879=for apidoc vnormal
880
881Accepts a version object and returns the normalized string
882representation. Call like:
883
884 sv = vnormal(rv);
885
886NOTE: you can pass either the object directly or the SV
887contained within the RV.
888
889The SV returned has a refcount of 1.
890
891=cut
892*/
893
894SV *
24120986 895#ifdef VUTIL_REPLACE_CORE
d4e59e62
FC
896Perl_vnormal2(pTHX_ SV *vs)
897#else
abc6d738 898Perl_vnormal(pTHX_ SV *vs)
d4e59e62 899#endif
abc6d738
FC
900{
901 I32 i, len, digit;
abc6d738
FC
902 SV *sv;
903 AV *av;
904
905 PERL_ARGS_ASSERT_VNORMAL;
906
907 /* extract the HV from the object */
d4e59e62 908 vs = VVERIFY(vs);
abc6d738
FC
909 if ( ! vs )
910 Perl_croak(aTHX_ "Invalid version object");
911
abc6d738
FC
912 av = MUTABLE_AV(SvRV(*hv_fetchs(MUTABLE_HV(vs), "version", FALSE)));
913
914 len = av_len(av);
915 if ( len == -1 )
916 {
917 return newSVpvs("");
918 }
05402f6b
JP
919 {
920 SV * tsv = *av_fetch(av, 0, 0);
921 digit = SvIV(tsv);
922 }
b9a25d15 923 sv = Perl_newSVpvf(aTHX_ "v%" IVdf, (IV)digit);
14f3031b 924 for ( i = 1 ; i <= len ; i++ ) {
05402f6b
JP
925 SV * tsv = *av_fetch(av, i, 0);
926 digit = SvIV(tsv);
b9a25d15 927 Perl_sv_catpvf(aTHX_ sv, ".%" IVdf, (IV)digit);
abc6d738
FC
928 }
929
abc6d738
FC
930 if ( len <= 2 ) { /* short version, must be at least three */
931 for ( len = 2 - len; len != 0; len-- )
932 sv_catpvs(sv,".0");
933 }
934 return sv;
935}
936
937/*
938=for apidoc vstringify
939
940In order to maintain maximum compatibility with earlier versions
941of Perl, this function will return either the floating point
942notation or the multiple dotted notation, depending on whether
943the original version contained 1 or more dots, respectively.
944
945The SV returned has a refcount of 1.
946
947=cut
948*/
949
950SV *
24120986 951#ifdef VUTIL_REPLACE_CORE
d4e59e62
FC
952Perl_vstringify2(pTHX_ SV *vs)
953#else
abc6d738 954Perl_vstringify(pTHX_ SV *vs)
d4e59e62 955#endif
abc6d738 956{
05402f6b 957 SV ** svp;
abc6d738
FC
958 PERL_ARGS_ASSERT_VSTRINGIFY;
959
960 /* extract the HV from the object */
d4e59e62 961 vs = VVERIFY(vs);
abc6d738
FC
962 if ( ! vs )
963 Perl_croak(aTHX_ "Invalid version object");
964
05402f6b
JP
965 svp = hv_fetchs(MUTABLE_HV(vs), "original", FALSE);
966 if (svp) {
abc6d738 967 SV *pv;
05402f6b 968 pv = *svp;
dddb2275
JP
969 if ( SvPOK(pv)
970#if PERL_VERSION_LT(5,17,2)
971 || SvPOKp(pv)
972#endif
973 )
abc6d738
FC
974 return newSVsv(pv);
975 else
976 return &PL_sv_undef;
977 }
978 else {
817794ed 979 if ( hv_exists(MUTABLE_HV(vs), "qv", 2) )
d4e59e62 980 return VNORMAL(vs);
abc6d738 981 else
d4e59e62 982 return VNUMIFY(vs);
abc6d738
FC
983 }
984}
985
986/*
987=for apidoc vcmp
988
989Version object aware cmp. Both operands must already have been
990converted into version objects.
991
992=cut
993*/
994
995int
24120986 996#ifdef VUTIL_REPLACE_CORE
d4e59e62
FC
997Perl_vcmp2(pTHX_ SV *lhv, SV *rhv)
998#else
abc6d738 999Perl_vcmp(pTHX_ SV *lhv, SV *rhv)
d4e59e62 1000#endif
abc6d738
FC
1001{
1002 SSize_t i,l,m,r;
1003 I32 retval;
abc6d738
FC
1004 I32 left = 0;
1005 I32 right = 0;
1006 AV *lav, *rav;
1007
1008 PERL_ARGS_ASSERT_VCMP;
1009
1010 /* extract the HVs from the objects */
d4e59e62
FC
1011 lhv = VVERIFY(lhv);
1012 rhv = VVERIFY(rhv);
abc6d738
FC
1013 if ( ! ( lhv && rhv ) )
1014 Perl_croak(aTHX_ "Invalid version object");
1015
1016 /* get the left hand term */
1017 lav = MUTABLE_AV(SvRV(*hv_fetchs(MUTABLE_HV(lhv), "version", FALSE)));
abc6d738
FC
1018
1019 /* and the right hand term */
1020 rav = MUTABLE_AV(SvRV(*hv_fetchs(MUTABLE_HV(rhv), "version", FALSE)));
abc6d738
FC
1021
1022 l = av_len(lav);
1023 r = av_len(rav);
1024 m = l < r ? l : r;
1025 retval = 0;
1026 i = 0;
1027 while ( i <= m && retval == 0 )
1028 {
05402f6b
JP
1029 SV * const lsv = *av_fetch(lav,i,0);
1030 SV * rsv;
1031 left = SvIV(lsv);
1032 rsv = *av_fetch(rav,i,0);
1033 right = SvIV(rsv);
abc6d738
FC
1034 if ( left < right )
1035 retval = -1;
1036 if ( left > right )
1037 retval = +1;
1038 i++;
1039 }
1040
abc6d738
FC
1041 if ( l != r && retval == 0 ) /* possible match except for trailing 0's */
1042 {
1043 if ( l < r )
1044 {
1045 while ( i <= r && retval == 0 )
1046 {
05402f6b
JP
1047 SV * const rsv = *av_fetch(rav,i,0);
1048 if ( SvIV(rsv) != 0 )
abc6d738
FC
1049 retval = -1; /* not a match after all */
1050 i++;
1051 }
1052 }
1053 else
1054 {
1055 while ( i <= l && retval == 0 )
1056 {
05402f6b
JP
1057 SV * const lsv = *av_fetch(lav,i,0);
1058 if ( SvIV(lsv) != 0 )
abc6d738
FC
1059 retval = +1; /* not a match after all */
1060 i++;
1061 }
1062 }
1063 }
1064 return retval;
1065}
14f3031b
JP
1066
1067/* ex: set ro: */