Commit | Line | Data |
---|---|---|
abc6d738 FC |
1 | /* This file is part of the "version" CPAN distribution. Please avoid |
2 | editing it in the perl core. */ | |
3 | ||
d4e59e62 | 4 | #ifndef PERL_CORE |
05402f6b | 5 | # define PERL_NO_GET_CONTEXT |
d4e59e62 FC |
6 | # include "EXTERN.h" |
7 | # include "perl.h" | |
8 | # include "XSUB.h" | |
9 | # define NEED_my_snprintf | |
10 | # define NEED_newRV_noinc | |
11 | # define NEED_vnewSVpvf | |
12 | # define NEED_newSVpvn_flags_GLOBAL | |
13 | # define NEED_warner | |
14 | # include "ppport.h" | |
15 | #endif | |
16 | #include "vutil.h" | |
17 | ||
abc6d738 FC |
18 | #define VERSION_MAX 0x7FFFFFFF |
19 | ||
20 | /* | |
21 | =for apidoc prescan_version | |
22 | ||
23 | Validate that a given string can be parsed as a version object, but doesn't | |
24 | actually perform the parsing. Can use either strict or lax validation rules. | |
25 | Can optionally set a number of hint variables to save the parsing code | |
26 | some time when tokenizing. | |
27 | ||
28 | =cut | |
29 | */ | |
30 | const char * | |
24120986 | 31 | #ifdef VUTIL_REPLACE_CORE |
d4e59e62 FC |
32 | Perl_prescan_version2(pTHX_ const char *s, bool strict, |
33 | #else | |
abc6d738 | 34 | Perl_prescan_version(pTHX_ const char *s, bool strict, |
d4e59e62 | 35 | #endif |
abc6d738 FC |
36 | const char **errstr, |
37 | bool *sqv, int *ssaw_decimal, int *swidth, bool *salpha) { | |
38 | bool qv = (sqv ? *sqv : FALSE); | |
39 | int width = 3; | |
40 | int saw_decimal = 0; | |
41 | bool alpha = FALSE; | |
42 | const char *d = s; | |
43 | ||
44 | PERL_ARGS_ASSERT_PRESCAN_VERSION; | |
45 | ||
46 | if (qv && isDIGIT(*d)) | |
47 | goto dotted_decimal_version; | |
48 | ||
49 | if (*d == 'v') { /* explicit v-string */ | |
50 | d++; | |
51 | if (isDIGIT(*d)) { | |
52 | qv = TRUE; | |
53 | } | |
54 | else { /* degenerate v-string */ | |
55 | /* requires v1.2.3 */ | |
56 | BADVERSION(s,errstr,"Invalid version format (dotted-decimal versions require at least three parts)"); | |
57 | } | |
58 | ||
59 | dotted_decimal_version: | |
60 | if (strict && d[0] == '0' && isDIGIT(d[1])) { | |
61 | /* no leading zeros allowed */ | |
62 | BADVERSION(s,errstr,"Invalid version format (no leading zeros)"); | |
63 | } | |
64 | ||
65 | while (isDIGIT(*d)) /* integer part */ | |
66 | d++; | |
67 | ||
68 | if (*d == '.') | |
69 | { | |
70 | saw_decimal++; | |
71 | d++; /* decimal point */ | |
72 | } | |
73 | else | |
74 | { | |
75 | if (strict) { | |
76 | /* require v1.2.3 */ | |
77 | BADVERSION(s,errstr,"Invalid version format (dotted-decimal versions require at least three parts)"); | |
78 | } | |
79 | else { | |
80 | goto version_prescan_finish; | |
81 | } | |
82 | } | |
83 | ||
84 | { | |
85 | int i = 0; | |
86 | int j = 0; | |
87 | while (isDIGIT(*d)) { /* just keep reading */ | |
88 | i++; | |
89 | while (isDIGIT(*d)) { | |
90 | d++; j++; | |
91 | /* maximum 3 digits between decimal */ | |
92 | if (strict && j > 3) { | |
93 | BADVERSION(s,errstr,"Invalid version format (maximum 3 digits between decimals)"); | |
94 | } | |
95 | } | |
96 | if (*d == '_') { | |
97 | if (strict) { | |
98 | BADVERSION(s,errstr,"Invalid version format (no underscores)"); | |
99 | } | |
100 | if ( alpha ) { | |
101 | BADVERSION(s,errstr,"Invalid version format (multiple underscores)"); | |
102 | } | |
103 | d++; | |
104 | alpha = TRUE; | |
105 | } | |
106 | else if (*d == '.') { | |
107 | if (alpha) { | |
108 | BADVERSION(s,errstr,"Invalid version format (underscores before decimal)"); | |
109 | } | |
110 | saw_decimal++; | |
111 | d++; | |
112 | } | |
113 | else if (!isDIGIT(*d)) { | |
114 | break; | |
115 | } | |
116 | j = 0; | |
117 | } | |
118 | ||
119 | if (strict && i < 2) { | |
120 | /* requires v1.2.3 */ | |
121 | BADVERSION(s,errstr,"Invalid version format (dotted-decimal versions require at least three parts)"); | |
122 | } | |
123 | } | |
124 | } /* end if dotted-decimal */ | |
125 | else | |
126 | { /* decimal versions */ | |
127 | int j = 0; /* may need this later */ | |
128 | /* special strict case for leading '.' or '0' */ | |
129 | if (strict) { | |
130 | if (*d == '.') { | |
131 | BADVERSION(s,errstr,"Invalid version format (0 before decimal required)"); | |
132 | } | |
133 | if (*d == '0' && isDIGIT(d[1])) { | |
134 | BADVERSION(s,errstr,"Invalid version format (no leading zeros)"); | |
135 | } | |
136 | } | |
137 | ||
138 | /* and we never support negative versions */ | |
139 | if ( *d == '-') { | |
140 | BADVERSION(s,errstr,"Invalid version format (negative version number)"); | |
141 | } | |
142 | ||
143 | /* consume all of the integer part */ | |
144 | while (isDIGIT(*d)) | |
145 | d++; | |
146 | ||
147 | /* look for a fractional part */ | |
148 | if (*d == '.') { | |
149 | /* we found it, so consume it */ | |
150 | saw_decimal++; | |
151 | d++; | |
152 | } | |
153 | else if (!*d || *d == ';' || isSPACE(*d) || *d == '{' || *d == '}') { | |
154 | if ( d == s ) { | |
155 | /* found nothing */ | |
156 | BADVERSION(s,errstr,"Invalid version format (version required)"); | |
157 | } | |
158 | /* found just an integer */ | |
159 | goto version_prescan_finish; | |
160 | } | |
161 | else if ( d == s ) { | |
162 | /* didn't find either integer or period */ | |
163 | BADVERSION(s,errstr,"Invalid version format (non-numeric data)"); | |
164 | } | |
165 | else if (*d == '_') { | |
166 | /* underscore can't come after integer part */ | |
167 | if (strict) { | |
168 | BADVERSION(s,errstr,"Invalid version format (no underscores)"); | |
169 | } | |
170 | else if (isDIGIT(d[1])) { | |
171 | BADVERSION(s,errstr,"Invalid version format (alpha without decimal)"); | |
172 | } | |
173 | else { | |
174 | BADVERSION(s,errstr,"Invalid version format (misplaced underscore)"); | |
175 | } | |
176 | } | |
177 | else { | |
178 | /* anything else after integer part is just invalid data */ | |
179 | BADVERSION(s,errstr,"Invalid version format (non-numeric data)"); | |
180 | } | |
181 | ||
182 | /* scan the fractional part after the decimal point*/ | |
183 | ||
184 | if (!isDIGIT(*d) && (strict || ! (!*d || *d == ';' || isSPACE(*d) || *d == '{' || *d == '}') )) { | |
185 | /* strict or lax-but-not-the-end */ | |
186 | BADVERSION(s,errstr,"Invalid version format (fractional part required)"); | |
187 | } | |
188 | ||
189 | while (isDIGIT(*d)) { | |
190 | d++; j++; | |
191 | if (*d == '.' && isDIGIT(d[-1])) { | |
192 | if (alpha) { | |
193 | BADVERSION(s,errstr,"Invalid version format (underscores before decimal)"); | |
194 | } | |
195 | if (strict) { | |
196 | BADVERSION(s,errstr,"Invalid version format (dotted-decimal versions must begin with 'v')"); | |
197 | } | |
198 | d = (char *)s; /* start all over again */ | |
199 | qv = TRUE; | |
200 | goto dotted_decimal_version; | |
201 | } | |
202 | if (*d == '_') { | |
203 | if (strict) { | |
204 | BADVERSION(s,errstr,"Invalid version format (no underscores)"); | |
205 | } | |
206 | if ( alpha ) { | |
207 | BADVERSION(s,errstr,"Invalid version format (multiple underscores)"); | |
208 | } | |
209 | if ( ! isDIGIT(d[1]) ) { | |
210 | BADVERSION(s,errstr,"Invalid version format (misplaced underscore)"); | |
211 | } | |
212 | width = j; | |
213 | d++; | |
214 | alpha = TRUE; | |
215 | } | |
216 | } | |
217 | } | |
218 | ||
219 | version_prescan_finish: | |
220 | while (isSPACE(*d)) | |
221 | d++; | |
222 | ||
223 | if (!isDIGIT(*d) && (! (!*d || *d == ';' || *d == '{' || *d == '}') )) { | |
224 | /* trailing non-numeric data */ | |
225 | BADVERSION(s,errstr,"Invalid version format (non-numeric data)"); | |
226 | } | |
227 | ||
228 | if (sqv) | |
229 | *sqv = qv; | |
230 | if (swidth) | |
231 | *swidth = width; | |
232 | if (ssaw_decimal) | |
233 | *ssaw_decimal = saw_decimal; | |
234 | if (salpha) | |
235 | *salpha = alpha; | |
236 | return d; | |
237 | } | |
238 | ||
239 | /* | |
240 | =for apidoc scan_version | |
241 | ||
242 | Returns a pointer to the next character after the parsed | |
243 | version string, as well as upgrading the passed in SV to | |
244 | an RV. | |
245 | ||
246 | Function must be called with an already existing SV like | |
247 | ||
248 | sv = newSV(0); | |
249 | s = scan_version(s, SV *sv, bool qv); | |
250 | ||
251 | Performs some preprocessing to the string to ensure that | |
252 | it has the correct characteristics of a version. Flags the | |
253 | object if it contains an underscore (which denotes this | |
254 | is an alpha version). The boolean qv denotes that the version | |
255 | should be interpreted as if it had multiple decimals, even if | |
256 | it doesn't. | |
257 | ||
258 | =cut | |
259 | */ | |
260 | ||
261 | const char * | |
24120986 | 262 | #ifdef VUTIL_REPLACE_CORE |
d4e59e62 FC |
263 | Perl_scan_version2(pTHX_ const char *s, SV *rv, bool qv) |
264 | #else | |
abc6d738 | 265 | Perl_scan_version(pTHX_ const char *s, SV *rv, bool qv) |
d4e59e62 | 266 | #endif |
abc6d738 FC |
267 | { |
268 | const char *start = s; | |
269 | const char *pos; | |
270 | const char *last; | |
271 | const char *errstr = NULL; | |
272 | int saw_decimal = 0; | |
273 | int width = 3; | |
274 | bool alpha = FALSE; | |
275 | bool vinf = FALSE; | |
276 | AV * av; | |
277 | SV * hv; | |
278 | ||
279 | PERL_ARGS_ASSERT_SCAN_VERSION; | |
280 | ||
281 | while (isSPACE(*s)) /* leading whitespace is OK */ | |
282 | s++; | |
283 | ||
d4e59e62 | 284 | last = PRESCAN_VERSION(s, FALSE, &errstr, &qv, &saw_decimal, &width, &alpha); |
abc6d738 FC |
285 | if (errstr) { |
286 | /* "undef" is a special case and not an error */ | |
05402f6b | 287 | if ( ! ( *s == 'u' && strEQ(s+1,"ndef")) ) { |
abc6d738 FC |
288 | Perl_croak(aTHX_ "%s", errstr); |
289 | } | |
290 | } | |
291 | ||
292 | start = s; | |
293 | if (*s == 'v') | |
294 | s++; | |
295 | pos = s; | |
296 | ||
297 | /* Now that we are through the prescan, start creating the object */ | |
298 | av = newAV(); | |
299 | hv = newSVrv(rv, "version"); /* create an SV and upgrade the RV */ | |
300 | (void)sv_upgrade(hv, SVt_PVHV); /* needs to be an HV type */ | |
301 | ||
302 | #ifndef NODEFAULT_SHAREKEYS | |
303 | HvSHAREKEYS_on(hv); /* key-sharing on by default */ | |
304 | #endif | |
305 | ||
306 | if ( qv ) | |
307 | (void)hv_stores(MUTABLE_HV(hv), "qv", newSViv(qv)); | |
308 | if ( alpha ) | |
309 | (void)hv_stores(MUTABLE_HV(hv), "alpha", newSViv(alpha)); | |
310 | if ( !qv && width < 3 ) | |
311 | (void)hv_stores(MUTABLE_HV(hv), "width", newSViv(width)); | |
312 | ||
313 | while (isDIGIT(*pos)) | |
314 | pos++; | |
315 | if (!isALPHA(*pos)) { | |
316 | I32 rev; | |
317 | ||
318 | for (;;) { | |
319 | rev = 0; | |
320 | { | |
321 | /* this is atoi() that delimits on underscores */ | |
322 | const char *end = pos; | |
323 | I32 mult = 1; | |
324 | I32 orev; | |
325 | ||
326 | /* the following if() will only be true after the decimal | |
327 | * point of a version originally created with a bare | |
328 | * floating point number, i.e. not quoted in any way | |
329 | */ | |
330 | if ( !qv && s > start && saw_decimal == 1 ) { | |
331 | mult *= 100; | |
332 | while ( s < end ) { | |
333 | orev = rev; | |
334 | rev += (*s - '0') * mult; | |
335 | mult /= 10; | |
336 | if ( (PERL_ABS(orev) > PERL_ABS(rev)) | |
337 | || (PERL_ABS(rev) > VERSION_MAX )) { | |
338 | Perl_ck_warner(aTHX_ packWARN(WARN_OVERFLOW), | |
339 | "Integer overflow in version %d",VERSION_MAX); | |
340 | s = end - 1; | |
341 | rev = VERSION_MAX; | |
342 | vinf = 1; | |
343 | } | |
344 | s++; | |
345 | if ( *s == '_' ) | |
346 | s++; | |
347 | } | |
348 | } | |
349 | else { | |
350 | while (--end >= s) { | |
351 | orev = rev; | |
352 | rev += (*end - '0') * mult; | |
353 | mult *= 10; | |
354 | if ( (PERL_ABS(orev) > PERL_ABS(rev)) | |
355 | || (PERL_ABS(rev) > VERSION_MAX )) { | |
356 | Perl_ck_warner(aTHX_ packWARN(WARN_OVERFLOW), | |
357 | "Integer overflow in version"); | |
358 | end = s - 1; | |
359 | rev = VERSION_MAX; | |
360 | vinf = 1; | |
361 | } | |
362 | } | |
363 | } | |
364 | } | |
365 | ||
366 | /* Append revision */ | |
367 | av_push(av, newSViv(rev)); | |
368 | if ( vinf ) { | |
369 | s = last; | |
370 | break; | |
371 | } | |
372 | else if ( *pos == '.' ) | |
373 | s = ++pos; | |
374 | else if ( *pos == '_' && isDIGIT(pos[1]) ) | |
375 | s = ++pos; | |
376 | else if ( *pos == ',' && isDIGIT(pos[1]) ) | |
377 | s = ++pos; | |
378 | else if ( isDIGIT(*pos) ) | |
379 | s = pos; | |
380 | else { | |
381 | s = pos; | |
382 | break; | |
383 | } | |
384 | if ( qv ) { | |
385 | while ( isDIGIT(*pos) ) | |
386 | pos++; | |
387 | } | |
388 | else { | |
389 | int digits = 0; | |
390 | while ( ( isDIGIT(*pos) || *pos == '_' ) && digits < 3 ) { | |
391 | if ( *pos != '_' ) | |
392 | digits++; | |
393 | pos++; | |
394 | } | |
395 | } | |
396 | } | |
397 | } | |
398 | if ( qv ) { /* quoted versions always get at least three terms*/ | |
05402f6b | 399 | SSize_t len = AvFILLp(av); |
abc6d738 FC |
400 | /* This for loop appears to trigger a compiler bug on OS X, as it |
401 | loops infinitely. Yes, len is negative. No, it makes no sense. | |
402 | Compiler in question is: | |
403 | gcc version 3.3 20030304 (Apple Computer, Inc. build 1640) | |
404 | for ( len = 2 - len; len > 0; len-- ) | |
405 | av_push(MUTABLE_AV(sv), newSViv(0)); | |
406 | */ | |
407 | len = 2 - len; | |
408 | while (len-- > 0) | |
409 | av_push(av, newSViv(0)); | |
410 | } | |
411 | ||
412 | /* need to save off the current version string for later */ | |
413 | if ( vinf ) { | |
414 | SV * orig = newSVpvn("v.Inf", sizeof("v.Inf")-1); | |
415 | (void)hv_stores(MUTABLE_HV(hv), "original", orig); | |
416 | (void)hv_stores(MUTABLE_HV(hv), "vinf", newSViv(1)); | |
417 | } | |
418 | else if ( s > start ) { | |
419 | SV * orig = newSVpvn(start,s-start); | |
420 | if ( qv && saw_decimal == 1 && *start != 'v' ) { | |
421 | /* need to insert a v to be consistent */ | |
422 | sv_insert(orig, 0, 0, "v", 1); | |
423 | } | |
424 | (void)hv_stores(MUTABLE_HV(hv), "original", orig); | |
425 | } | |
426 | else { | |
427 | (void)hv_stores(MUTABLE_HV(hv), "original", newSVpvs("0")); | |
428 | av_push(av, newSViv(0)); | |
429 | } | |
430 | ||
431 | /* And finally, store the AV in the hash */ | |
432 | (void)hv_stores(MUTABLE_HV(hv), "version", newRV_noinc(MUTABLE_SV(av))); | |
433 | ||
434 | /* fix RT#19517 - special case 'undef' as string */ | |
05402f6b | 435 | if ( *s == 'u' && strEQ(s+1,"ndef") ) { |
abc6d738 FC |
436 | s += 5; |
437 | } | |
438 | ||
439 | return s; | |
440 | } | |
441 | ||
442 | /* | |
443 | =for apidoc new_version | |
444 | ||
445 | Returns a new version object based on the passed in SV: | |
446 | ||
447 | SV *sv = new_version(SV *ver); | |
448 | ||
449 | Does not alter the passed in ver SV. See "upg_version" if you | |
450 | want to upgrade the SV. | |
451 | ||
452 | =cut | |
453 | */ | |
454 | ||
455 | SV * | |
24120986 | 456 | #ifdef VUTIL_REPLACE_CORE |
d4e59e62 FC |
457 | Perl_new_version2(pTHX_ SV *ver) |
458 | #else | |
abc6d738 | 459 | Perl_new_version(pTHX_ SV *ver) |
d4e59e62 | 460 | #endif |
abc6d738 FC |
461 | { |
462 | dVAR; | |
463 | SV * const rv = newSV(0); | |
464 | PERL_ARGS_ASSERT_NEW_VERSION; | |
05402f6b | 465 | if ( ISA_VERSION_OBJ(ver) ) /* can just copy directly */ |
abc6d738 FC |
466 | { |
467 | SSize_t key; | |
468 | AV * const av = newAV(); | |
469 | AV *sav; | |
470 | /* This will get reblessed later if a derived class*/ | |
471 | SV * const hv = newSVrv(rv, "version"); | |
472 | (void)sv_upgrade(hv, SVt_PVHV); /* needs to be an HV type */ | |
473 | #ifndef NODEFAULT_SHAREKEYS | |
474 | HvSHAREKEYS_on(hv); /* key-sharing on by default */ | |
475 | #endif | |
476 | ||
477 | if ( SvROK(ver) ) | |
478 | ver = SvRV(ver); | |
479 | ||
480 | /* Begin copying all of the elements */ | |
481 | if ( hv_exists(MUTABLE_HV(ver), "qv", 2) ) | |
482 | (void)hv_stores(MUTABLE_HV(hv), "qv", newSViv(1)); | |
483 | ||
484 | if ( hv_exists(MUTABLE_HV(ver), "alpha", 5) ) | |
485 | (void)hv_stores(MUTABLE_HV(hv), "alpha", newSViv(1)); | |
abc6d738 | 486 | { |
05402f6b JP |
487 | SV ** svp = hv_fetchs(MUTABLE_HV(ver), "width", FALSE); |
488 | if(svp) { | |
489 | const I32 width = SvIV(*svp); | |
490 | (void)hv_stores(MUTABLE_HV(hv), "width", newSViv(width)); | |
491 | } | |
abc6d738 | 492 | } |
abc6d738 | 493 | { |
05402f6b JP |
494 | SV ** svp = hv_fetchs(MUTABLE_HV(ver), "original", FALSE); |
495 | if(svp) | |
496 | (void)hv_stores(MUTABLE_HV(hv), "original", newSVsv(*svp)); | |
abc6d738 | 497 | } |
abc6d738 FC |
498 | sav = MUTABLE_AV(SvRV(*hv_fetchs(MUTABLE_HV(ver), "version", FALSE))); |
499 | /* This will get reblessed later if a derived class*/ | |
500 | for ( key = 0; key <= av_len(sav); key++ ) | |
501 | { | |
05402f6b JP |
502 | SV * const sv = *av_fetch(sav, key, FALSE); |
503 | const I32 rev = SvIV(sv); | |
abc6d738 FC |
504 | av_push(av, newSViv(rev)); |
505 | } | |
506 | ||
507 | (void)hv_stores(MUTABLE_HV(hv), "version", newRV_noinc(MUTABLE_SV(av))); | |
508 | return rv; | |
509 | } | |
510 | #ifdef SvVOK | |
511 | { | |
512 | const MAGIC* const mg = SvVSTRING_mg(ver); | |
513 | if ( mg ) { /* already a v-string */ | |
514 | const STRLEN len = mg->mg_len; | |
05402f6b | 515 | const char * const version = (const char*)mg->mg_ptr; |
abc6d738 FC |
516 | sv_setpvn(rv,version,len); |
517 | /* this is for consistency with the pure Perl class */ | |
518 | if ( isDIGIT(*version) ) | |
519 | sv_insert(rv, 0, 0, "v", 1); | |
abc6d738 FC |
520 | } |
521 | else { | |
522 | #endif | |
95a23f5d | 523 | SvSetSV_nosteal(rv, ver); /* make a duplicate */ |
abc6d738 FC |
524 | #ifdef SvVOK |
525 | } | |
526 | } | |
527 | #endif | |
9190f8ab JP |
528 | sv_2mortal(rv); /* in case upg_version croaks before it returns */ |
529 | return SvREFCNT_inc_NN(UPG_VERSION(rv, FALSE)); | |
abc6d738 FC |
530 | } |
531 | ||
532 | /* | |
533 | =for apidoc upg_version | |
534 | ||
535 | In-place upgrade of the supplied SV to a version object. | |
536 | ||
537 | SV *sv = upg_version(SV *sv, bool qv); | |
538 | ||
539 | Returns a pointer to the upgraded SV. Set the boolean qv if you want | |
540 | to force this SV to be interpreted as an "extended" version. | |
541 | ||
542 | =cut | |
543 | */ | |
544 | ||
545 | SV * | |
24120986 | 546 | #ifdef VUTIL_REPLACE_CORE |
d4e59e62 FC |
547 | Perl_upg_version2(pTHX_ SV *ver, bool qv) |
548 | #else | |
abc6d738 | 549 | Perl_upg_version(pTHX_ SV *ver, bool qv) |
d4e59e62 | 550 | #endif |
abc6d738 FC |
551 | { |
552 | const char *version, *s; | |
553 | #ifdef SvVOK | |
554 | const MAGIC *mg; | |
555 | #endif | |
556 | ||
d2b110e6 | 557 | #if PERL_VERSION_LT(5,19,8) && defined(USE_ITHREADS) |
e2ca569e | 558 | ENTER; |
d2b110e6 | 559 | #endif |
abc6d738 FC |
560 | PERL_ARGS_ASSERT_UPG_VERSION; |
561 | ||
9190f8ab JP |
562 | if ( (SvUOK(ver) && SvUVX(ver) > VERSION_MAX) |
563 | || (SvIOK(ver) && SvIVX(ver) > VERSION_MAX) ) { | |
564 | /* out of bounds [unsigned] integer */ | |
565 | STRLEN len; | |
566 | char tbuf[64]; | |
567 | len = my_snprintf(tbuf, sizeof(tbuf), "%d", VERSION_MAX); | |
568 | version = savepvn(tbuf, len); | |
569 | SAVEFREEPV(version); | |
570 | Perl_ck_warner(aTHX_ packWARN(WARN_OVERFLOW), | |
571 | "Integer overflow in version %d",VERSION_MAX); | |
572 | } | |
573 | else if ( SvUOK(ver) || SvIOK(ver)) | |
24120986 | 574 | #if PERL_VERSION_LT(5,17,2) |
9190f8ab | 575 | VER_IV: |
24120986 | 576 | #endif |
9190f8ab JP |
577 | { |
578 | version = savesvpv(ver); | |
579 | SAVEFREEPV(version); | |
580 | } | |
581 | else if (SvNOK(ver) && !( SvPOK(ver) && SvCUR(ver) == 3 ) ) | |
24120986 | 582 | #if PERL_VERSION_LT(5,17,2) |
9190f8ab | 583 | VER_NV: |
24120986 | 584 | #endif |
abc6d738 FC |
585 | { |
586 | STRLEN len; | |
587 | ||
588 | /* may get too much accuracy */ | |
589 | char tbuf[64]; | |
590 | SV *sv = SvNVX(ver) > 10e50 ? newSV(64) : 0; | |
591 | char *buf; | |
90d6b40e | 592 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
abc6d738 | 593 | if (sv) { |
ab4e0d4b JP |
594 | Perl_sv_catpvf(aTHX_ sv, "%.9"NVff, SvNVX(ver)); |
595 | len = SvCUR(sv); | |
596 | buf = SvPVX(sv); | |
abc6d738 FC |
597 | } |
598 | else { | |
599 | len = my_snprintf(tbuf, sizeof(tbuf), "%.9"NVff, SvNVX(ver)); | |
600 | buf = tbuf; | |
601 | } | |
90d6b40e | 602 | RESTORE_NUMERIC_LOCAL(); |
abc6d738 FC |
603 | while (buf[len-1] == '0' && len > 0) len--; |
604 | if ( buf[len-1] == '.' ) len--; /* eat the trailing decimal */ | |
605 | version = savepvn(buf, len); | |
05402f6b | 606 | SAVEFREEPV(version); |
abc6d738 FC |
607 | SvREFCNT_dec(sv); |
608 | } | |
609 | #ifdef SvVOK | |
610 | else if ( (mg = SvVSTRING_mg(ver)) ) { /* already a v-string */ | |
611 | version = savepvn( (const char*)mg->mg_ptr,mg->mg_len ); | |
05402f6b | 612 | SAVEFREEPV(version); |
abc6d738 FC |
613 | qv = TRUE; |
614 | } | |
615 | #endif | |
9190f8ab | 616 | else if ( SvPOK(ver))/* must be a string or something like a string */ |
24120986 | 617 | #if PERL_VERSION_LT(5,17,2) |
9190f8ab | 618 | VER_PV: |
24120986 | 619 | #endif |
abc6d738 FC |
620 | { |
621 | STRLEN len; | |
4141ef59 | 622 | version = savepvn(SvPV(ver,len), SvCUR(ver)); |
05402f6b | 623 | SAVEFREEPV(version); |
abc6d738 FC |
624 | #ifndef SvVOK |
625 | # if PERL_VERSION > 5 | |
626 | /* This will only be executed for 5.6.0 - 5.8.0 inclusive */ | |
627 | if ( len >= 3 && !instr(version,".") && !instr(version,"_")) { | |
628 | /* may be a v-string */ | |
629 | char *testv = (char *)version; | |
630 | STRLEN tlen = len; | |
631 | for (tlen=0; tlen < len; tlen++, testv++) { | |
632 | /* if one of the characters is non-text assume v-string */ | |
633 | if (testv[0] < ' ') { | |
634 | SV * const nsv = sv_newmortal(); | |
635 | const char *nver; | |
636 | const char *pos; | |
637 | int saw_decimal = 0; | |
638 | sv_setpvf(nsv,"v%vd",ver); | |
639 | pos = nver = savepv(SvPV_nolen(nsv)); | |
05402f6b | 640 | SAVEFREEPV(pos); |
abc6d738 FC |
641 | |
642 | /* scan the resulting formatted string */ | |
643 | pos++; /* skip the leading 'v' */ | |
644 | while ( *pos == '.' || isDIGIT(*pos) ) { | |
645 | if ( *pos == '.' ) | |
646 | saw_decimal++ ; | |
647 | pos++; | |
648 | } | |
649 | ||
650 | /* is definitely a v-string */ | |
651 | if ( saw_decimal >= 2 ) { | |
abc6d738 FC |
652 | version = nver; |
653 | } | |
654 | break; | |
655 | } | |
656 | } | |
657 | } | |
658 | # endif | |
659 | #endif | |
660 | } | |
9190f8ab JP |
661 | #if PERL_VERSION_LT(5,17,2) |
662 | else if (SvIOKp(ver)) { | |
663 | goto VER_IV; | |
664 | } | |
665 | else if (SvNOKp(ver)) { | |
666 | goto VER_NV; | |
667 | } | |
668 | else if (SvPOKp(ver)) { | |
669 | goto VER_PV; | |
670 | } | |
671 | #endif | |
ab4e0d4b JP |
672 | else |
673 | { | |
674 | /* no idea what this is */ | |
675 | Perl_croak(aTHX_ "Invalid version format (non-numeric data)"); | |
676 | } | |
abc6d738 | 677 | |
d4e59e62 | 678 | s = SCAN_VERSION(version, ver, qv); |
abc6d738 FC |
679 | if ( *s != '\0' ) |
680 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), | |
681 | "Version string '%s' contains invalid data; " | |
682 | "ignoring: '%s'", version, s); | |
d2b110e6 JP |
683 | |
684 | #if PERL_VERSION_LT(5,19,8) && defined(USE_ITHREADS) | |
e2ca569e | 685 | LEAVE; |
d2b110e6 | 686 | #endif |
9190f8ab | 687 | |
abc6d738 FC |
688 | return ver; |
689 | } | |
690 | ||
691 | /* | |
692 | =for apidoc vverify | |
693 | ||
694 | Validates that the SV contains valid internal structure for a version object. | |
695 | It may be passed either the version object (RV) or the hash itself (HV). If | |
696 | the structure is valid, it returns the HV. If the structure is invalid, | |
697 | it returns NULL. | |
698 | ||
699 | SV *hv = vverify(sv); | |
700 | ||
701 | Note that it only confirms the bare minimum structure (so as not to get | |
702 | confused by derived classes which may contain additional hash entries): | |
703 | ||
704 | =over 4 | |
705 | ||
706 | =item * The SV is an HV or a reference to an HV | |
707 | ||
708 | =item * The hash contains a "version" key | |
709 | ||
710 | =item * The "version" key has a reference to an AV as its value | |
711 | ||
712 | =back | |
713 | ||
714 | =cut | |
715 | */ | |
716 | ||
717 | SV * | |
24120986 | 718 | #ifdef VUTIL_REPLACE_CORE |
d4e59e62 FC |
719 | Perl_vverify2(pTHX_ SV *vs) |
720 | #else | |
abc6d738 | 721 | Perl_vverify(pTHX_ SV *vs) |
d4e59e62 | 722 | #endif |
abc6d738 FC |
723 | { |
724 | SV *sv; | |
05402f6b | 725 | SV **svp; |
abc6d738 FC |
726 | |
727 | PERL_ARGS_ASSERT_VVERIFY; | |
728 | ||
729 | if ( SvROK(vs) ) | |
730 | vs = SvRV(vs); | |
731 | ||
732 | /* see if the appropriate elements exist */ | |
733 | if ( SvTYPE(vs) == SVt_PVHV | |
05402f6b JP |
734 | && (svp = hv_fetchs(MUTABLE_HV(vs), "version", FALSE)) |
735 | && (sv = SvRV(*svp)) | |
abc6d738 FC |
736 | && SvTYPE(sv) == SVt_PVAV ) |
737 | return vs; | |
738 | else | |
739 | return NULL; | |
740 | } | |
741 | ||
742 | /* | |
743 | =for apidoc vnumify | |
744 | ||
745 | Accepts a version object and returns the normalized floating | |
746 | point representation. Call like: | |
747 | ||
748 | sv = vnumify(rv); | |
749 | ||
750 | NOTE: you can pass either the object directly or the SV | |
751 | contained within the RV. | |
752 | ||
753 | The SV returned has a refcount of 1. | |
754 | ||
755 | =cut | |
756 | */ | |
757 | ||
758 | SV * | |
24120986 | 759 | #ifdef VUTIL_REPLACE_CORE |
d4e59e62 FC |
760 | Perl_vnumify2(pTHX_ SV *vs) |
761 | #else | |
abc6d738 | 762 | Perl_vnumify(pTHX_ SV *vs) |
d4e59e62 | 763 | #endif |
abc6d738 FC |
764 | { |
765 | SSize_t i, len; | |
766 | I32 digit; | |
767 | int width; | |
768 | bool alpha = FALSE; | |
769 | SV *sv; | |
770 | AV *av; | |
771 | ||
772 | PERL_ARGS_ASSERT_VNUMIFY; | |
773 | ||
774 | /* extract the HV from the object */ | |
d4e59e62 | 775 | vs = VVERIFY(vs); |
abc6d738 FC |
776 | if ( ! vs ) |
777 | Perl_croak(aTHX_ "Invalid version object"); | |
778 | ||
779 | /* see if various flags exist */ | |
780 | if ( hv_exists(MUTABLE_HV(vs), "alpha", 5 ) ) | |
781 | alpha = TRUE; | |
05402f6b JP |
782 | { |
783 | SV ** svp = hv_fetchs(MUTABLE_HV(vs), "width", FALSE); | |
784 | if ( svp ) | |
785 | width = SvIV(*svp); | |
786 | else | |
787 | width = 3; | |
788 | } | |
abc6d738 FC |
789 | |
790 | ||
791 | /* attempt to retrieve the version array */ | |
792 | if ( !(av = MUTABLE_AV(SvRV(*hv_fetchs(MUTABLE_HV(vs), "version", FALSE))) ) ) { | |
793 | return newSVpvs("0"); | |
794 | } | |
795 | ||
796 | len = av_len(av); | |
797 | if ( len == -1 ) | |
798 | { | |
799 | return newSVpvs("0"); | |
800 | } | |
801 | ||
05402f6b JP |
802 | { |
803 | SV * tsv = *av_fetch(av, 0, 0); | |
804 | digit = SvIV(tsv); | |
805 | } | |
abc6d738 FC |
806 | sv = Perl_newSVpvf(aTHX_ "%d.", (int)PERL_ABS(digit)); |
807 | for ( i = 1 ; i < len ; i++ ) | |
808 | { | |
05402f6b JP |
809 | SV * tsv = *av_fetch(av, i, 0); |
810 | digit = SvIV(tsv); | |
abc6d738 FC |
811 | if ( width < 3 ) { |
812 | const int denom = (width == 2 ? 10 : 100); | |
813 | const div_t term = div((int)PERL_ABS(digit),denom); | |
814 | Perl_sv_catpvf(aTHX_ sv, "%0*d_%d", width, term.quot, term.rem); | |
815 | } | |
816 | else { | |
817 | Perl_sv_catpvf(aTHX_ sv, "%0*d", width, (int)digit); | |
818 | } | |
819 | } | |
820 | ||
821 | if ( len > 0 ) | |
822 | { | |
05402f6b JP |
823 | SV * tsv = *av_fetch(av, len, 0); |
824 | digit = SvIV(tsv); | |
abc6d738 FC |
825 | if ( alpha && width == 3 ) /* alpha version */ |
826 | sv_catpvs(sv,"_"); | |
827 | Perl_sv_catpvf(aTHX_ sv, "%0*d", width, (int)digit); | |
828 | } | |
829 | else /* len == 0 */ | |
830 | { | |
831 | sv_catpvs(sv, "000"); | |
832 | } | |
833 | return sv; | |
834 | } | |
835 | ||
836 | /* | |
837 | =for apidoc vnormal | |
838 | ||
839 | Accepts a version object and returns the normalized string | |
840 | representation. Call like: | |
841 | ||
842 | sv = vnormal(rv); | |
843 | ||
844 | NOTE: you can pass either the object directly or the SV | |
845 | contained within the RV. | |
846 | ||
847 | The SV returned has a refcount of 1. | |
848 | ||
849 | =cut | |
850 | */ | |
851 | ||
852 | SV * | |
24120986 | 853 | #ifdef VUTIL_REPLACE_CORE |
d4e59e62 FC |
854 | Perl_vnormal2(pTHX_ SV *vs) |
855 | #else | |
abc6d738 | 856 | Perl_vnormal(pTHX_ SV *vs) |
d4e59e62 | 857 | #endif |
abc6d738 FC |
858 | { |
859 | I32 i, len, digit; | |
860 | bool alpha = FALSE; | |
861 | SV *sv; | |
862 | AV *av; | |
863 | ||
864 | PERL_ARGS_ASSERT_VNORMAL; | |
865 | ||
866 | /* extract the HV from the object */ | |
d4e59e62 | 867 | vs = VVERIFY(vs); |
abc6d738 FC |
868 | if ( ! vs ) |
869 | Perl_croak(aTHX_ "Invalid version object"); | |
870 | ||
871 | if ( hv_exists(MUTABLE_HV(vs), "alpha", 5 ) ) | |
872 | alpha = TRUE; | |
873 | av = MUTABLE_AV(SvRV(*hv_fetchs(MUTABLE_HV(vs), "version", FALSE))); | |
874 | ||
875 | len = av_len(av); | |
876 | if ( len == -1 ) | |
877 | { | |
878 | return newSVpvs(""); | |
879 | } | |
05402f6b JP |
880 | { |
881 | SV * tsv = *av_fetch(av, 0, 0); | |
882 | digit = SvIV(tsv); | |
883 | } | |
abc6d738 FC |
884 | sv = Perl_newSVpvf(aTHX_ "v%"IVdf, (IV)digit); |
885 | for ( i = 1 ; i < len ; i++ ) { | |
05402f6b JP |
886 | SV * tsv = *av_fetch(av, i, 0); |
887 | digit = SvIV(tsv); | |
abc6d738 FC |
888 | Perl_sv_catpvf(aTHX_ sv, ".%"IVdf, (IV)digit); |
889 | } | |
890 | ||
891 | if ( len > 0 ) | |
892 | { | |
893 | /* handle last digit specially */ | |
05402f6b JP |
894 | SV * tsv = *av_fetch(av, len, 0); |
895 | digit = SvIV(tsv); | |
abc6d738 FC |
896 | if ( alpha ) |
897 | Perl_sv_catpvf(aTHX_ sv, "_%"IVdf, (IV)digit); | |
898 | else | |
899 | Perl_sv_catpvf(aTHX_ sv, ".%"IVdf, (IV)digit); | |
900 | } | |
901 | ||
902 | if ( len <= 2 ) { /* short version, must be at least three */ | |
903 | for ( len = 2 - len; len != 0; len-- ) | |
904 | sv_catpvs(sv,".0"); | |
905 | } | |
906 | return sv; | |
907 | } | |
908 | ||
909 | /* | |
910 | =for apidoc vstringify | |
911 | ||
912 | In order to maintain maximum compatibility with earlier versions | |
913 | of Perl, this function will return either the floating point | |
914 | notation or the multiple dotted notation, depending on whether | |
915 | the original version contained 1 or more dots, respectively. | |
916 | ||
917 | The SV returned has a refcount of 1. | |
918 | ||
919 | =cut | |
920 | */ | |
921 | ||
922 | SV * | |
24120986 | 923 | #ifdef VUTIL_REPLACE_CORE |
d4e59e62 FC |
924 | Perl_vstringify2(pTHX_ SV *vs) |
925 | #else | |
abc6d738 | 926 | Perl_vstringify(pTHX_ SV *vs) |
d4e59e62 | 927 | #endif |
abc6d738 | 928 | { |
05402f6b | 929 | SV ** svp; |
abc6d738 FC |
930 | PERL_ARGS_ASSERT_VSTRINGIFY; |
931 | ||
932 | /* extract the HV from the object */ | |
d4e59e62 | 933 | vs = VVERIFY(vs); |
abc6d738 FC |
934 | if ( ! vs ) |
935 | Perl_croak(aTHX_ "Invalid version object"); | |
936 | ||
05402f6b JP |
937 | svp = hv_fetchs(MUTABLE_HV(vs), "original", FALSE); |
938 | if (svp) { | |
abc6d738 | 939 | SV *pv; |
05402f6b | 940 | pv = *svp; |
abc6d738 FC |
941 | if ( SvPOK(pv) ) |
942 | return newSVsv(pv); | |
943 | else | |
944 | return &PL_sv_undef; | |
945 | } | |
946 | else { | |
947 | if ( hv_exists(MUTABLE_HV(vs), "qv", 2) ) | |
d4e59e62 | 948 | return VNORMAL(vs); |
abc6d738 | 949 | else |
d4e59e62 | 950 | return VNUMIFY(vs); |
abc6d738 FC |
951 | } |
952 | } | |
953 | ||
954 | /* | |
955 | =for apidoc vcmp | |
956 | ||
957 | Version object aware cmp. Both operands must already have been | |
958 | converted into version objects. | |
959 | ||
960 | =cut | |
961 | */ | |
962 | ||
963 | int | |
24120986 | 964 | #ifdef VUTIL_REPLACE_CORE |
d4e59e62 FC |
965 | Perl_vcmp2(pTHX_ SV *lhv, SV *rhv) |
966 | #else | |
abc6d738 | 967 | Perl_vcmp(pTHX_ SV *lhv, SV *rhv) |
d4e59e62 | 968 | #endif |
abc6d738 FC |
969 | { |
970 | SSize_t i,l,m,r; | |
971 | I32 retval; | |
972 | bool lalpha = FALSE; | |
973 | bool ralpha = FALSE; | |
974 | I32 left = 0; | |
975 | I32 right = 0; | |
976 | AV *lav, *rav; | |
977 | ||
978 | PERL_ARGS_ASSERT_VCMP; | |
979 | ||
980 | /* extract the HVs from the objects */ | |
d4e59e62 FC |
981 | lhv = VVERIFY(lhv); |
982 | rhv = VVERIFY(rhv); | |
abc6d738 FC |
983 | if ( ! ( lhv && rhv ) ) |
984 | Perl_croak(aTHX_ "Invalid version object"); | |
985 | ||
986 | /* get the left hand term */ | |
987 | lav = MUTABLE_AV(SvRV(*hv_fetchs(MUTABLE_HV(lhv), "version", FALSE))); | |
988 | if ( hv_exists(MUTABLE_HV(lhv), "alpha", 5 ) ) | |
989 | lalpha = TRUE; | |
990 | ||
991 | /* and the right hand term */ | |
992 | rav = MUTABLE_AV(SvRV(*hv_fetchs(MUTABLE_HV(rhv), "version", FALSE))); | |
993 | if ( hv_exists(MUTABLE_HV(rhv), "alpha", 5 ) ) | |
994 | ralpha = TRUE; | |
995 | ||
996 | l = av_len(lav); | |
997 | r = av_len(rav); | |
998 | m = l < r ? l : r; | |
999 | retval = 0; | |
1000 | i = 0; | |
1001 | while ( i <= m && retval == 0 ) | |
1002 | { | |
05402f6b JP |
1003 | SV * const lsv = *av_fetch(lav,i,0); |
1004 | SV * rsv; | |
1005 | left = SvIV(lsv); | |
1006 | rsv = *av_fetch(rav,i,0); | |
1007 | right = SvIV(rsv); | |
abc6d738 FC |
1008 | if ( left < right ) |
1009 | retval = -1; | |
1010 | if ( left > right ) | |
1011 | retval = +1; | |
1012 | i++; | |
1013 | } | |
1014 | ||
1015 | /* tiebreaker for alpha with identical terms */ | |
1016 | if ( retval == 0 && l == r && left == right && ( lalpha || ralpha ) ) | |
1017 | { | |
1018 | if ( lalpha && !ralpha ) | |
1019 | { | |
1020 | retval = -1; | |
1021 | } | |
1022 | else if ( ralpha && !lalpha) | |
1023 | { | |
1024 | retval = +1; | |
1025 | } | |
1026 | } | |
1027 | ||
1028 | if ( l != r && retval == 0 ) /* possible match except for trailing 0's */ | |
1029 | { | |
1030 | if ( l < r ) | |
1031 | { | |
1032 | while ( i <= r && retval == 0 ) | |
1033 | { | |
05402f6b JP |
1034 | SV * const rsv = *av_fetch(rav,i,0); |
1035 | if ( SvIV(rsv) != 0 ) | |
abc6d738 FC |
1036 | retval = -1; /* not a match after all */ |
1037 | i++; | |
1038 | } | |
1039 | } | |
1040 | else | |
1041 | { | |
1042 | while ( i <= l && retval == 0 ) | |
1043 | { | |
05402f6b JP |
1044 | SV * const lsv = *av_fetch(lav,i,0); |
1045 | if ( SvIV(lsv) != 0 ) | |
abc6d738 FC |
1046 | retval = +1; /* not a match after all */ |
1047 | i++; | |
1048 | } | |
1049 | } | |
1050 | } | |
1051 | return retval; | |
1052 | } |