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9acf5c35 |
1 | package Module::Build::Version; |
0ec9ad96 |
2 | use strict; |
3 | |
60ca10cf |
4 | use vars qw($VERSION); |
8cb289bd |
5 | $VERSION = 0.7203; |
7a827510 |
6 | |
7 | eval "use version $VERSION"; |
8 | if ($@) { # can't locate version files, use our own |
9 | |
10 | # Avoid redefined warnings if an old version.pm was available |
11 | delete $version::{$_} foreach keys %version::; |
12 | |
13 | # first we get the stub version module |
14 | my $version; |
15 | while (<DATA>) { |
16 | s/(\$VERSION)\s=\s\d+/\$VERSION = 0/; |
17 | $version .= $_ if $_; |
18 | last if /^1;$/; |
19 | } |
20 | |
21 | # and now get the current version::vpp code |
22 | my $vpp; |
23 | while (<DATA>) { |
24 | s/(\$VERSION)\s=\s\d+/\$VERSION = 0/; |
25 | $vpp .= $_ if $_; |
26 | last if /^1;$/; |
27 | } |
28 | |
29 | # but we eval them in reverse order since version depends on |
30 | # version::vpp to already exist |
31 | eval $vpp; die $@ if $@; |
32 | $INC{'version/vpp.pm'} = 'inside Module::Build::Version'; |
33 | eval $version; die $@ if $@; |
34 | $INC{'version.pm'} = 'inside Module::Build::Version'; |
35 | } |
36 | |
37 | # now we can safely subclass version, installed or not |
38 | use vars qw(@ISA); |
39 | @ISA = qw(version); |
40 | |
41 | 1; |
42 | __DATA__ |
43 | # stub version module to make everything else happy |
44 | package version; |
45 | |
46 | use 5.005_04; |
47 | use strict; |
48 | |
49 | use vars qw(@ISA $VERSION $CLASS *qv); |
50 | |
51 | $VERSION = 0.000; |
52 | |
53 | $CLASS = 'version'; |
54 | |
55 | push @ISA, "version::vpp"; |
56 | *version::qv = \&version::vpp::qv; |
57 | |
58 | # Preloaded methods go here. |
59 | sub import { |
60 | my ($class) = @_; |
61 | my $callpkg = caller(); |
62 | no strict 'refs'; |
63 | |
64 | *{$callpkg."::qv"} = |
65 | sub {return bless version::qv(shift), $class } |
66 | unless defined(&{"$callpkg\::qv"}); |
67 | |
68 | } |
69 | |
70 | 1; |
71 | # replace everything from here to the end with the current version/vpp.pm |
72 | |
73 | package version::vpp; |
74 | use strict; |
75 | |
76 | use locale; |
77 | use vars qw ($VERSION @ISA @REGEXS); |
78 | $VERSION = 0.7203; |
79 | |
80 | push @REGEXS, qr/ |
81 | ^v? # optional leading 'v' |
82 | (\d*) # major revision not required |
83 | \. # requires at least one decimal |
84 | (?:(\d+)\.?){1,} |
85 | /x; |
86 | |
87 | use overload ( |
88 | '""' => \&stringify, |
89 | '0+' => \&numify, |
90 | 'cmp' => \&vcmp, |
91 | '<=>' => \&vcmp, |
92 | 'bool' => \&vbool, |
93 | 'nomethod' => \&vnoop, |
94 | ); |
95 | |
96 | sub new |
97 | { |
98 | my ($class, $value) = @_; |
99 | my $self = bless ({}, ref ($class) || $class); |
100 | |
101 | if ( ref($value) && eval("$value->isa('version')") ) { |
102 | # Can copy the elements directly |
103 | $self->{version} = [ @{$value->{version} } ]; |
104 | $self->{qv} = 1 if $value->{qv}; |
105 | $self->{alpha} = 1 if $value->{alpha}; |
106 | $self->{original} = ''.$value->{original}; |
107 | return $self; |
108 | } |
109 | |
110 | require POSIX; |
111 | my $currlocale = POSIX::setlocale(&POSIX::LC_ALL); |
112 | my $radix_comma = ( POSIX::localeconv()->{decimal_point} eq ',' ); |
113 | |
114 | if ( not defined $value or $value =~ /^undef$/ ) { |
115 | # RT #19517 - special case for undef comparison |
116 | # or someone forgot to pass a value |
117 | push @{$self->{version}}, 0; |
118 | $self->{original} = "0"; |
119 | return ($self); |
120 | } |
121 | |
122 | if ( $#_ == 2 ) { # must be CVS-style |
123 | $value = 'v'.$_[2]; |
124 | } |
125 | |
126 | $value = _un_vstring($value); |
127 | |
128 | # exponential notation |
129 | if ( $value =~ /\d+.?\d*e-?\d+/ ) { |
130 | $value = sprintf("%.9f",$value); |
131 | $value =~ s/(0+)$//; |
132 | } |
133 | |
134 | # if the original locale used commas for decimal points, we |
135 | # just replace commas with decimal places, rather than changing |
136 | # locales |
137 | if ( $radix_comma ) { |
138 | $value =~ tr/,/./; |
139 | } |
140 | |
141 | # This is not very efficient, but it is morally equivalent |
142 | # to the XS code (as that is the reference implementation). |
143 | # See vutil/vutil.c for details |
144 | my $qv = 0; |
145 | my $alpha = 0; |
146 | my $width = 3; |
147 | my $saw_period = 0; |
148 | my ($start, $last, $pos, $s); |
149 | $s = 0; |
150 | |
151 | while ( substr($value,$s,1) =~ /\s/ ) { # leading whitespace is OK |
152 | $s++; |
153 | } |
154 | |
155 | if (substr($value,$s,1) eq 'v') { |
156 | $s++; # get past 'v' |
157 | $qv = 1; # force quoted version processing |
158 | } |
159 | |
160 | $start = $last = $pos = $s; |
161 | |
162 | # pre-scan the input string to check for decimals/underbars |
163 | while ( substr($value,$pos,1) =~ /[._\d]/ ) { |
164 | if ( substr($value,$pos,1) eq '.' ) { |
165 | if ($alpha) { |
166 | require Carp; |
167 | Carp::croak("Invalid version format ". |
168 | "(underscores before decimal)"); |
169 | } |
170 | $saw_period++; |
171 | $last = $pos; |
172 | } |
173 | elsif ( substr($value,$pos,1) eq '_' ) { |
174 | if ($alpha) { |
175 | require Carp; |
176 | Carp::croak("Invalid version format ". |
177 | "(multiple underscores)"); |
178 | } |
179 | $alpha = 1; |
180 | $width = $pos - $last - 1; # natural width of sub-version |
181 | } |
182 | $pos++; |
183 | } |
184 | |
185 | if ( $alpha && !$saw_period ) { |
186 | require Carp; |
187 | Carp::croak("Invalid version format (alpha without decimal)"); |
188 | } |
189 | |
190 | if ( $alpha && $saw_period && $width == 0 ) { |
191 | require Carp; |
192 | Carp::croak("Invalid version format (misplaced _ in number)"); |
193 | } |
194 | |
195 | if ( $saw_period > 1 ) { |
196 | $qv = 1; # force quoted version processing |
197 | } |
198 | |
199 | $pos = $s; |
200 | |
201 | if ( $qv ) { |
202 | $self->{qv} = 1; |
203 | } |
204 | |
205 | if ( $alpha ) { |
206 | $self->{alpha} = 1; |
207 | } |
208 | |
209 | if ( !$qv && $width < 3 ) { |
210 | $self->{width} = $width; |
211 | } |
212 | |
213 | while ( substr($value,$pos,1) =~ /\d/ ) { |
214 | $pos++; |
215 | } |
216 | |
217 | if ( substr($value,$pos,1) !~ /[a-z]/ ) { ### FIX THIS ### |
218 | my $rev; |
219 | |
220 | while (1) { |
221 | $rev = 0; |
222 | { |
223 | |
224 | # this is atoi() that delimits on underscores |
225 | my $end = $pos; |
226 | my $mult = 1; |
227 | my $orev; |
228 | |
229 | # the following if() will only be true after the decimal |
230 | # point of a version originally created with a bare |
231 | # floating point number, i.e. not quoted in any way |
232 | if ( !$qv && $s > $start && $saw_period == 1 ) { |
233 | $mult *= 100; |
234 | while ( $s < $end ) { |
235 | $orev = $rev; |
236 | $rev += substr($value,$s,1) * $mult; |
237 | $mult /= 10; |
238 | if ( abs($orev) > abs($rev) ) { |
239 | require Carp; |
240 | Carp::croak("Integer overflow in version"); |
241 | } |
242 | $s++; |
243 | if ( substr($value,$s,1) eq '_' ) { |
244 | $s++; |
245 | } |
246 | } |
247 | } |
248 | else { |
249 | while (--$end >= $s) { |
250 | $orev = $rev; |
251 | $rev += substr($value,$end,1) * $mult; |
252 | $mult *= 10; |
253 | if ( abs($orev) > abs($rev) ) { |
254 | require Carp; |
255 | Carp::croak("Integer overflow in version"); |
256 | } |
257 | } |
258 | } |
259 | } |
260 | |
261 | # Append revision |
262 | push @{$self->{version}}, $rev; |
263 | if ( substr($value,$pos,1) eq '.' |
264 | && substr($value,$pos+1,1) =~ /\d/ ) { |
265 | $s = ++$pos; |
266 | } |
267 | elsif ( substr($value,$pos,1) eq '_' |
268 | && substr($value,$pos+1,1) =~ /\d/ ) { |
269 | $s = ++$pos; |
270 | } |
271 | elsif ( substr($value,$pos,1) =~ /\d/ ) { |
272 | $s = $pos; |
273 | } |
274 | else { |
275 | $s = $pos; |
276 | last; |
277 | } |
278 | if ( $qv ) { |
279 | while ( substr($value,$pos,1) =~ /\d/ ) { |
280 | $pos++; |
281 | } |
282 | } |
283 | else { |
284 | my $digits = 0; |
285 | while (substr($value,$pos,1) =~ /[\d_]/ && $digits < 3) { |
286 | if ( substr($value,$pos,1) ne '_' ) { |
287 | $digits++; |
288 | } |
289 | $pos++; |
290 | } |
291 | } |
292 | } |
293 | } |
294 | if ( $qv ) { # quoted versions always get at least three terms |
295 | my $len = scalar @{$self->{version}}; |
296 | $len = 3 - $len; |
297 | while ($len-- > 0) { |
298 | push @{$self->{version}}, 0; |
299 | } |
300 | } |
301 | |
302 | if ( substr($value,$pos) ) { # any remaining text |
303 | warn "Version string '$value' contains invalid data; ". |
304 | "ignoring: '".substr($value,$pos)."'"; |
305 | } |
306 | |
307 | # cache the original value for use when stringification |
308 | $self->{original} = substr($value,0,$pos); |
309 | |
310 | return ($self); |
311 | } |
312 | |
313 | sub numify |
314 | { |
315 | my ($self) = @_; |
316 | unless (_verify($self)) { |
317 | require Carp; |
318 | Carp::croak("Invalid version object"); |
319 | } |
320 | my $width = $self->{width} || 3; |
321 | my $alpha = $self->{alpha} || ""; |
322 | my $len = $#{$self->{version}}; |
323 | my $digit = $self->{version}[0]; |
324 | my $string = sprintf("%d.", $digit ); |
325 | |
326 | for ( my $i = 1 ; $i < $len ; $i++ ) { |
327 | $digit = $self->{version}[$i]; |
328 | if ( $width < 3 ) { |
329 | my $denom = 10**(3-$width); |
330 | my $quot = int($digit/$denom); |
331 | my $rem = $digit - ($quot * $denom); |
332 | $string .= sprintf("%0".$width."d_%d", $quot, $rem); |
333 | } |
334 | else { |
335 | $string .= sprintf("%03d", $digit); |
336 | } |
337 | } |
338 | |
339 | if ( $len > 0 ) { |
340 | $digit = $self->{version}[$len]; |
341 | if ( $alpha && $width == 3 ) { |
342 | $string .= "_"; |
343 | } |
344 | $string .= sprintf("%0".$width."d", $digit); |
345 | } |
346 | else # $len = 0 |
347 | { |
348 | $string .= sprintf("000"); |
349 | } |
350 | |
351 | return $string; |
352 | } |
353 | |
354 | sub normal |
355 | { |
356 | my ($self) = @_; |
357 | unless (_verify($self)) { |
358 | require Carp; |
359 | Carp::croak("Invalid version object"); |
360 | } |
361 | my $alpha = $self->{alpha} || ""; |
362 | my $len = $#{$self->{version}}; |
363 | my $digit = $self->{version}[0]; |
364 | my $string = sprintf("v%d", $digit ); |
365 | |
366 | for ( my $i = 1 ; $i < $len ; $i++ ) { |
367 | $digit = $self->{version}[$i]; |
368 | $string .= sprintf(".%d", $digit); |
369 | } |
370 | |
371 | if ( $len > 0 ) { |
372 | $digit = $self->{version}[$len]; |
373 | if ( $alpha ) { |
374 | $string .= sprintf("_%0d", $digit); |
375 | } |
376 | else { |
377 | $string .= sprintf(".%0d", $digit); |
378 | } |
379 | } |
380 | |
381 | if ( $len <= 2 ) { |
382 | for ( $len = 2 - $len; $len != 0; $len-- ) { |
383 | $string .= sprintf(".%0d", 0); |
384 | } |
385 | } |
386 | |
387 | return $string; |
388 | } |
389 | |
390 | sub stringify |
391 | { |
392 | my ($self) = @_; |
393 | unless (_verify($self)) { |
394 | require Carp; |
395 | Carp::croak("Invalid version object"); |
396 | } |
397 | return $self->{original}; |
398 | } |
399 | |
400 | sub vcmp |
401 | { |
402 | require UNIVERSAL; |
403 | my ($left,$right,$swap) = @_; |
404 | my $class = ref($left); |
405 | unless ( UNIVERSAL::isa($right, $class) ) { |
406 | $right = $class->new($right); |
407 | } |
408 | |
409 | if ( $swap ) { |
410 | ($left, $right) = ($right, $left); |
411 | } |
412 | unless (_verify($left)) { |
413 | require Carp; |
414 | Carp::croak("Invalid version object"); |
415 | } |
416 | unless (_verify($right)) { |
417 | require Carp; |
418 | Carp::croak("Invalid version object"); |
419 | } |
420 | my $l = $#{$left->{version}}; |
421 | my $r = $#{$right->{version}}; |
422 | my $m = $l < $r ? $l : $r; |
423 | my $lalpha = $left->is_alpha; |
424 | my $ralpha = $right->is_alpha; |
425 | my $retval = 0; |
426 | my $i = 0; |
427 | while ( $i <= $m && $retval == 0 ) { |
428 | $retval = $left->{version}[$i] <=> $right->{version}[$i]; |
429 | $i++; |
430 | } |
431 | |
432 | # tiebreaker for alpha with identical terms |
433 | if ( $retval == 0 |
434 | && $l == $r |
435 | && $left->{version}[$m] == $right->{version}[$m] |
436 | && ( $lalpha || $ralpha ) ) { |
437 | |
438 | if ( $lalpha && !$ralpha ) { |
439 | $retval = -1; |
440 | } |
441 | elsif ( $ralpha && !$lalpha) { |
442 | $retval = +1; |
443 | } |
444 | } |
445 | |
446 | # possible match except for trailing 0's |
447 | if ( $retval == 0 && $l != $r ) { |
448 | if ( $l < $r ) { |
449 | while ( $i <= $r && $retval == 0 ) { |
450 | if ( $right->{version}[$i] != 0 ) { |
451 | $retval = -1; # not a match after all |
452 | } |
453 | $i++; |
454 | } |
455 | } |
456 | else { |
457 | while ( $i <= $l && $retval == 0 ) { |
458 | if ( $left->{version}[$i] != 0 ) { |
459 | $retval = +1; # not a match after all |
460 | } |
461 | $i++; |
462 | } |
463 | } |
464 | } |
465 | |
466 | return $retval; |
467 | } |
468 | |
469 | sub vbool { |
470 | my ($self) = @_; |
471 | return vcmp($self,$self->new("0"),1); |
472 | } |
473 | |
474 | sub vnoop { |
475 | require Carp; |
476 | Carp::croak("operation not supported with version object"); |
477 | } |
478 | |
479 | sub is_alpha { |
480 | my ($self) = @_; |
481 | return (exists $self->{alpha}); |
482 | } |
483 | |
484 | sub qv { |
485 | my ($value) = @_; |
486 | |
487 | $value = _un_vstring($value); |
488 | $value = 'v'.$value unless $value =~ /(^v|\d+\.\d+\.\d)/; |
489 | my $version = version->new($value); # always use base class |
490 | return $version; |
491 | } |
492 | |
493 | sub is_qv { |
494 | my ($self) = @_; |
495 | return (exists $self->{qv}); |
496 | } |
497 | |
498 | |
499 | sub _verify { |
500 | my ($self) = @_; |
501 | if ( ref($self) |
502 | && eval { exists $self->{version} } |
503 | && ref($self->{version}) eq 'ARRAY' |
504 | ) { |
505 | return 1; |
506 | } |
507 | else { |
508 | return 0; |
509 | } |
510 | } |
511 | |
512 | sub _un_vstring { |
513 | my $value = shift; |
514 | # may be a v-string |
515 | if ( $] >= 5.006_000 && length($value) >= 3 && $value !~ /[._]/ ) { |
516 | my $tvalue = sprintf("v%vd",$value); |
517 | if ( $tvalue =~ /^v\d+\.\d+\.\d+$/ ) { |
518 | # must be a v-string |
519 | $value = $tvalue; |
520 | } |
521 | } |
522 | return $value; |
523 | } |
524 | |
525 | # Thanks to Yitzchak Scott-Thoennes for this mode of operation |
526 | { |
527 | local $^W; |
528 | *UNIVERSAL::VERSION = sub { |
529 | my ($obj, $req) = @_; |
530 | my $class = ref($obj) || $obj; |
531 | |
532 | no strict 'refs'; |
533 | eval "require $class" unless %{"$class\::"}; # already existing |
534 | return undef if $@ =~ /Can't locate/ and not defined $req; |
535 | |
536 | if ( not %{"$class\::"} and $] >= 5.008) { # file but no package |
537 | require Carp; |
538 | Carp::croak( "$class defines neither package nor VERSION" |
539 | ."--version check failed"); |
540 | } |
541 | |
542 | my $version = eval "\$$class\::VERSION"; |
543 | if ( defined $version ) { |
544 | local $^W if $] <= 5.008; |
545 | $version = version::vpp->new($version); |
546 | } |
547 | |
548 | if ( defined $req ) { |
549 | unless ( defined $version ) { |
550 | require Carp; |
551 | my $msg = $] < 5.006 |
552 | ? "$class version $req required--this is only version " |
553 | : "$class does not define \$$class\::VERSION" |
554 | ."--version check failed"; |
555 | |
556 | if ( $ENV{VERSION_DEBUG} ) { |
557 | Carp::confess($msg); |
558 | } |
559 | else { |
560 | Carp::croak($msg); |
561 | } |
562 | } |
563 | |
564 | $req = version::vpp->new($req); |
565 | |
566 | if ( $req > $version ) { |
567 | require Carp; |
568 | if ( $req->is_qv ) { |
569 | Carp::croak( |
570 | sprintf ("%s version %s required--". |
571 | "this is only version %s", $class, |
572 | $req->normal, $version->normal) |
573 | ); |
574 | } |
575 | else { |
576 | Carp::croak( |
577 | sprintf ("%s version %s required--". |
578 | "this is only version %s", $class, |
579 | $req->stringify, $version->stringify) |
580 | ); |
581 | } |
582 | } |
583 | } |
584 | |
585 | return defined $version ? $version->stringify : undef; |
586 | }; |
587 | } |
588 | |
589 | 1; #this line is important and will help the module return a true value |