1 | ############################################################################## |
---|
2 | # |
---|
3 | # This library is free software; you can redistribute it and/or |
---|
4 | # modify it under the terms of the GNU Library General Public |
---|
5 | # License as published by the Free Software Foundation; either |
---|
6 | # version 2 of the License, or (at your option) any later version. |
---|
7 | # |
---|
8 | # This library is distributed in the hope that it will be useful, |
---|
9 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
---|
10 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
---|
11 | # Library General Public License for more details. |
---|
12 | # |
---|
13 | # You should have received a copy of the GNU Library General Public |
---|
14 | # License along with this library; if not, write to the |
---|
15 | # Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
---|
16 | # Boston, MA 02111-1307, USA. |
---|
17 | # |
---|
18 | # Jabber |
---|
19 | # Copyright (C) 1998-2004 Jabber Software Foundation http://jabber.org/ |
---|
20 | # |
---|
21 | ############################################################################## |
---|
22 | |
---|
23 | |
---|
24 | ############################################################################## |
---|
25 | # |
---|
26 | # Op - Base Op class |
---|
27 | # |
---|
28 | ############################################################################## |
---|
29 | package XML::Stream::XPath::Op; |
---|
30 | |
---|
31 | use 5.006_001; |
---|
32 | use strict; |
---|
33 | use vars qw( $VERSION ); |
---|
34 | |
---|
35 | $VERSION = "1.22"; |
---|
36 | |
---|
37 | sub new |
---|
38 | { |
---|
39 | my $proto = shift; |
---|
40 | return &allocate($proto,@_); |
---|
41 | } |
---|
42 | |
---|
43 | sub allocate |
---|
44 | { |
---|
45 | my $proto = shift; |
---|
46 | my $self = { }; |
---|
47 | |
---|
48 | bless($self,$proto); |
---|
49 | |
---|
50 | $self->{TYPE} = shift; |
---|
51 | $self->{VALUE} = shift; |
---|
52 | |
---|
53 | return $self; |
---|
54 | } |
---|
55 | |
---|
56 | sub getValue |
---|
57 | { |
---|
58 | my $self = shift; |
---|
59 | return $self->{VALUE}; |
---|
60 | } |
---|
61 | |
---|
62 | sub calcStr |
---|
63 | { |
---|
64 | my $self = shift; |
---|
65 | return $self->{VALUE}; |
---|
66 | } |
---|
67 | |
---|
68 | sub getType |
---|
69 | { |
---|
70 | my $self = shift; |
---|
71 | return $self->{TYPE}; |
---|
72 | } |
---|
73 | |
---|
74 | |
---|
75 | sub isValid |
---|
76 | { |
---|
77 | my $self = shift; |
---|
78 | my $ctxt = shift; |
---|
79 | return 1; |
---|
80 | } |
---|
81 | |
---|
82 | sub display |
---|
83 | { |
---|
84 | my $self = shift; |
---|
85 | my $space = shift; |
---|
86 | $space = "" unless defined($space); |
---|
87 | |
---|
88 | print $space,"OP: type($self->{TYPE}) value($self->{VALUE})\n"; |
---|
89 | } |
---|
90 | |
---|
91 | |
---|
92 | |
---|
93 | ############################################################################## |
---|
94 | # |
---|
95 | # PositionOp - class to handle [0] ops |
---|
96 | # |
---|
97 | ############################################################################## |
---|
98 | package XML::Stream::XPath::PositionOp; |
---|
99 | |
---|
100 | use vars qw (@ISA); |
---|
101 | @ISA = ( "XML::Stream::XPath::Op" ); |
---|
102 | |
---|
103 | sub new |
---|
104 | { |
---|
105 | my $proto = shift; |
---|
106 | my $self = $proto->allocate("POSITION",""); |
---|
107 | $self->{POS} = shift; |
---|
108 | |
---|
109 | return $self; |
---|
110 | } |
---|
111 | |
---|
112 | |
---|
113 | sub isValid |
---|
114 | { |
---|
115 | my $self = shift; |
---|
116 | my $ctxt = shift; |
---|
117 | |
---|
118 | my @elems = $$ctxt->getList(); |
---|
119 | my @valid_elems; |
---|
120 | if ($#elems+1 < $self->{POS}) |
---|
121 | { |
---|
122 | return; |
---|
123 | } |
---|
124 | |
---|
125 | push(@valid_elems, $elems[$self->{POS}-1]); |
---|
126 | |
---|
127 | $$ctxt->setList(@valid_elems); |
---|
128 | |
---|
129 | return 1; |
---|
130 | } |
---|
131 | |
---|
132 | |
---|
133 | |
---|
134 | ############################################################################## |
---|
135 | # |
---|
136 | # ContextOp - class to handle [...] ops |
---|
137 | # |
---|
138 | ############################################################################## |
---|
139 | package XML::Stream::XPath::ContextOp; |
---|
140 | |
---|
141 | use vars qw (@ISA); |
---|
142 | @ISA = ( "XML::Stream::XPath::Op" ); |
---|
143 | |
---|
144 | sub new |
---|
145 | { |
---|
146 | my $proto = shift; |
---|
147 | my $self = $proto->allocate("CONTEXT",""); |
---|
148 | $self->{OP} = shift; |
---|
149 | return $self; |
---|
150 | } |
---|
151 | |
---|
152 | |
---|
153 | sub isValid |
---|
154 | { |
---|
155 | my $self = shift; |
---|
156 | my $ctxt = shift; |
---|
157 | |
---|
158 | my @elems = $$ctxt->getList(); |
---|
159 | my @valid_elems; |
---|
160 | foreach my $elem (@elems) |
---|
161 | { |
---|
162 | my $tmp_ctxt = new XML::Stream::XPath::Value($elem); |
---|
163 | $tmp_ctxt->in_context(1); |
---|
164 | if ($self->{OP}->isValid(\$tmp_ctxt)) |
---|
165 | { |
---|
166 | push(@valid_elems,$elem); |
---|
167 | } |
---|
168 | } |
---|
169 | |
---|
170 | $$ctxt->setList(@valid_elems); |
---|
171 | |
---|
172 | if ($#valid_elems == -1) |
---|
173 | { |
---|
174 | return; |
---|
175 | } |
---|
176 | |
---|
177 | return 1; |
---|
178 | } |
---|
179 | |
---|
180 | |
---|
181 | sub display |
---|
182 | { |
---|
183 | my $self = shift; |
---|
184 | my $space = shift; |
---|
185 | $space = "" unless defined($space); |
---|
186 | |
---|
187 | print "${space}OP: type(CONTEXT) op: \n"; |
---|
188 | $self->{OP}->display("$space "); |
---|
189 | } |
---|
190 | |
---|
191 | |
---|
192 | |
---|
193 | |
---|
194 | ############################################################################## |
---|
195 | # |
---|
196 | # AllOp - class to handle // ops |
---|
197 | # |
---|
198 | ############################################################################## |
---|
199 | package XML::Stream::XPath::AllOp; |
---|
200 | |
---|
201 | use vars qw (@ISA); |
---|
202 | @ISA = ( "XML::Stream::XPath::Op" ); |
---|
203 | |
---|
204 | sub new |
---|
205 | { |
---|
206 | my $proto = shift; |
---|
207 | my $name = shift; |
---|
208 | my $self = $proto->allocate("ALL",$name); |
---|
209 | return $self; |
---|
210 | } |
---|
211 | |
---|
212 | |
---|
213 | sub isValid |
---|
214 | { |
---|
215 | my $self = shift; |
---|
216 | my $ctxt = shift; |
---|
217 | |
---|
218 | my @elems = $$ctxt->getList(); |
---|
219 | |
---|
220 | if ($#elems == -1) |
---|
221 | { |
---|
222 | return; |
---|
223 | } |
---|
224 | |
---|
225 | my @valid_elems; |
---|
226 | |
---|
227 | foreach my $elem (@elems) |
---|
228 | { |
---|
229 | push(@valid_elems,$self->descend($elem)); |
---|
230 | } |
---|
231 | |
---|
232 | $$ctxt->setList(@valid_elems); |
---|
233 | |
---|
234 | if ($#valid_elems == -1) |
---|
235 | { |
---|
236 | return; |
---|
237 | } |
---|
238 | |
---|
239 | return 1; |
---|
240 | } |
---|
241 | |
---|
242 | |
---|
243 | sub descend |
---|
244 | { |
---|
245 | my $self = shift; |
---|
246 | my $elem = shift; |
---|
247 | |
---|
248 | my @valid_elems; |
---|
249 | |
---|
250 | if (($self->{VALUE} eq "*") || (&XML::Stream::GetXMLData("tag",$elem) eq $self->{VALUE})) |
---|
251 | { |
---|
252 | push(@valid_elems,$elem); |
---|
253 | } |
---|
254 | |
---|
255 | foreach my $child (&XML::Stream::GetXMLData("child array",$elem,"*")) |
---|
256 | { |
---|
257 | push(@valid_elems,$self->descend($child)); |
---|
258 | } |
---|
259 | |
---|
260 | return @valid_elems; |
---|
261 | } |
---|
262 | |
---|
263 | |
---|
264 | |
---|
265 | ############################################################################## |
---|
266 | # |
---|
267 | # NodeOp - class to handle ops based on node names |
---|
268 | # |
---|
269 | ############################################################################## |
---|
270 | package XML::Stream::XPath::NodeOp; |
---|
271 | |
---|
272 | use vars qw (@ISA); |
---|
273 | @ISA = ( "XML::Stream::XPath::Op" ); |
---|
274 | |
---|
275 | sub new |
---|
276 | { |
---|
277 | my $proto = shift; |
---|
278 | my $name = shift; |
---|
279 | my $is_root = shift; |
---|
280 | $is_root = 0 unless defined($is_root); |
---|
281 | my $self = $proto->allocate("NODE",$name); |
---|
282 | $self->{ISROOT} = $is_root; |
---|
283 | return $self; |
---|
284 | } |
---|
285 | |
---|
286 | |
---|
287 | sub isValid |
---|
288 | { |
---|
289 | my $self = shift; |
---|
290 | my $ctxt = shift; |
---|
291 | |
---|
292 | if ($self->{ISROOT}) |
---|
293 | { |
---|
294 | my $elem = $$ctxt->getFirstElem(); |
---|
295 | if (&XML::Stream::GetXMLData("tag",$elem) ne $self->{VALUE}) |
---|
296 | { |
---|
297 | return; |
---|
298 | } |
---|
299 | return 1; |
---|
300 | } |
---|
301 | |
---|
302 | my @valid_elems; |
---|
303 | |
---|
304 | foreach my $elem ($$ctxt->getList()) |
---|
305 | { |
---|
306 | my $valid = 0; |
---|
307 | |
---|
308 | foreach my $child (&XML::Stream::GetXMLData("child array",$elem,"*")) |
---|
309 | { |
---|
310 | if (($self->{VALUE} eq "*") || |
---|
311 | (&XML::Stream::GetXMLData("tag",$child) eq $self->{VALUE})) |
---|
312 | { |
---|
313 | if ($$ctxt->in_context()) |
---|
314 | { |
---|
315 | $valid = 1; |
---|
316 | } |
---|
317 | else |
---|
318 | { |
---|
319 | push(@valid_elems,$child); |
---|
320 | } |
---|
321 | } |
---|
322 | } |
---|
323 | if ($valid) |
---|
324 | { |
---|
325 | push(@valid_elems,$elem); |
---|
326 | } |
---|
327 | } |
---|
328 | |
---|
329 | $$ctxt->setList(@valid_elems); |
---|
330 | |
---|
331 | if ($#valid_elems == -1) |
---|
332 | { |
---|
333 | return; |
---|
334 | } |
---|
335 | |
---|
336 | return 1; |
---|
337 | } |
---|
338 | |
---|
339 | |
---|
340 | sub calcStr |
---|
341 | { |
---|
342 | my $self = shift; |
---|
343 | my $elem = shift; |
---|
344 | return &XML::Stream::GetXMLData("value",$elem); |
---|
345 | } |
---|
346 | |
---|
347 | |
---|
348 | ############################################################################## |
---|
349 | # |
---|
350 | # EqualOp - class to handle [ x = y ] ops |
---|
351 | # |
---|
352 | ############################################################################## |
---|
353 | package XML::Stream::XPath::EqualOp; |
---|
354 | |
---|
355 | use vars qw (@ISA); |
---|
356 | @ISA = ( "XML::Stream::XPath::Op" ); |
---|
357 | |
---|
358 | sub new |
---|
359 | { |
---|
360 | my $proto = shift; |
---|
361 | my $self = $proto->allocate("EQUAL",""); |
---|
362 | $self->{OP_L} = shift; |
---|
363 | $self->{OP_R} = shift; |
---|
364 | return $self; |
---|
365 | } |
---|
366 | |
---|
367 | |
---|
368 | sub isValid |
---|
369 | { |
---|
370 | my $self = shift; |
---|
371 | my $ctxt = shift; |
---|
372 | |
---|
373 | my $tmp_ctxt = new XML::Stream::XPath::Value(); |
---|
374 | $tmp_ctxt->setList($$ctxt->getList()); |
---|
375 | $tmp_ctxt->in_context(0); |
---|
376 | |
---|
377 | if (!$self->{OP_L}->isValid(\$tmp_ctxt) || !$self->{OP_R}->isValid(\$tmp_ctxt)) |
---|
378 | { |
---|
379 | return; |
---|
380 | } |
---|
381 | |
---|
382 | my @valid_elems; |
---|
383 | foreach my $elem ($tmp_ctxt->getList) |
---|
384 | { |
---|
385 | if ($self->{OP_L}->calcStr($elem) eq $self->{OP_R}->calcStr($elem)) |
---|
386 | { |
---|
387 | push(@valid_elems,$elem); |
---|
388 | } |
---|
389 | } |
---|
390 | |
---|
391 | if ( $#valid_elems > -1) |
---|
392 | { |
---|
393 | @valid_elems = $$ctxt->getList(); |
---|
394 | } |
---|
395 | |
---|
396 | $$ctxt->setList(@valid_elems); |
---|
397 | |
---|
398 | if ($#valid_elems == -1) |
---|
399 | { |
---|
400 | return; |
---|
401 | } |
---|
402 | |
---|
403 | return 1; |
---|
404 | } |
---|
405 | |
---|
406 | |
---|
407 | sub display |
---|
408 | { |
---|
409 | my $self = shift; |
---|
410 | my $space = shift; |
---|
411 | $space = "" unless defined($space); |
---|
412 | |
---|
413 | print $space,"OP: type(EQUAL)\n"; |
---|
414 | print $space," op_l: "; |
---|
415 | $self->{OP_L}->display($space." "); |
---|
416 | |
---|
417 | print $space," op_r: "; |
---|
418 | $self->{OP_R}->display($space." "); |
---|
419 | } |
---|
420 | |
---|
421 | |
---|
422 | |
---|
423 | ############################################################################## |
---|
424 | # |
---|
425 | # NotEqualOp - class to handle [ x != y ] ops |
---|
426 | # |
---|
427 | ############################################################################## |
---|
428 | package XML::Stream::XPath::NotEqualOp; |
---|
429 | |
---|
430 | use vars qw (@ISA); |
---|
431 | @ISA = ( "XML::Stream::XPath::Op" ); |
---|
432 | |
---|
433 | sub new |
---|
434 | { |
---|
435 | my $proto = shift; |
---|
436 | my $self = $proto->allocate("NOTEQUAL",""); |
---|
437 | $self->{OP_L} = shift; |
---|
438 | $self->{OP_R} = shift; |
---|
439 | return $self; |
---|
440 | } |
---|
441 | |
---|
442 | |
---|
443 | sub isValid |
---|
444 | { |
---|
445 | my $self = shift; |
---|
446 | my $ctxt = shift; |
---|
447 | |
---|
448 | my $tmp_ctxt = new XML::Stream::XPath::Value(); |
---|
449 | $tmp_ctxt->setList($$ctxt->getList()); |
---|
450 | $tmp_ctxt->in_context(0); |
---|
451 | |
---|
452 | if (!$self->{OP_L}->isValid(\$tmp_ctxt) || !$self->{OP_R}->isValid(\$tmp_ctxt)) |
---|
453 | { |
---|
454 | return; |
---|
455 | } |
---|
456 | |
---|
457 | my @valid_elems; |
---|
458 | foreach my $elem ($tmp_ctxt->getList) |
---|
459 | { |
---|
460 | if ($self->{OP_L}->calcStr($elem) ne $self->{OP_R}->calcStr($elem)) |
---|
461 | { |
---|
462 | push(@valid_elems,$elem); |
---|
463 | } |
---|
464 | } |
---|
465 | |
---|
466 | if ( $#valid_elems > -1) |
---|
467 | { |
---|
468 | @valid_elems = $$ctxt->getList(); |
---|
469 | } |
---|
470 | |
---|
471 | $$ctxt->setList(@valid_elems); |
---|
472 | |
---|
473 | if ($#valid_elems == -1) |
---|
474 | { |
---|
475 | return; |
---|
476 | } |
---|
477 | |
---|
478 | return 1; |
---|
479 | } |
---|
480 | |
---|
481 | |
---|
482 | sub display |
---|
483 | { |
---|
484 | my $self = shift; |
---|
485 | my $space = shift; |
---|
486 | $space = "" unless defined($space); |
---|
487 | |
---|
488 | print $space,"OP: type(NOTEQUAL)\n"; |
---|
489 | print $space," op_l: "; |
---|
490 | $self->{OP_L}->display($space." "); |
---|
491 | |
---|
492 | print $space," op_r: "; |
---|
493 | $self->{OP_R}->display($space." "); |
---|
494 | } |
---|
495 | |
---|
496 | |
---|
497 | |
---|
498 | ############################################################################## |
---|
499 | # |
---|
500 | # AttributeOp - class to handle @foo ops. |
---|
501 | # |
---|
502 | ############################################################################## |
---|
503 | package XML::Stream::XPath::AttributeOp; |
---|
504 | |
---|
505 | use vars qw (@ISA); |
---|
506 | @ISA = ( "XML::Stream::XPath::Op" ); |
---|
507 | |
---|
508 | sub new |
---|
509 | { |
---|
510 | my $proto = shift; |
---|
511 | my $name = shift; |
---|
512 | my $self = $proto->allocate("ATTRIBUTE",$name); |
---|
513 | return $self; |
---|
514 | } |
---|
515 | |
---|
516 | |
---|
517 | sub isValid |
---|
518 | { |
---|
519 | my $self = shift; |
---|
520 | my $ctxt = shift; |
---|
521 | |
---|
522 | my @elems = $$ctxt->getList(); |
---|
523 | my @valid_elems; |
---|
524 | my @values; |
---|
525 | my %attribs; |
---|
526 | |
---|
527 | foreach my $elem (@elems) |
---|
528 | { |
---|
529 | if ($self->{VALUE} ne "*") |
---|
530 | { |
---|
531 | if (&XML::Stream::GetXMLData("value",$elem,"",$self->{VALUE})) |
---|
532 | { |
---|
533 | $self->{VAL} = $self->calcStr($elem); |
---|
534 | push(@valid_elems,$elem); |
---|
535 | push(@values,$self->{VAL}); |
---|
536 | } |
---|
537 | } |
---|
538 | else |
---|
539 | { |
---|
540 | my %attrib = &XML::Stream::GetXMLData("attribs",$elem); |
---|
541 | if (scalar(keys(%attrib)) > 0) |
---|
542 | { |
---|
543 | push(@valid_elems,$elem); |
---|
544 | foreach my $key (keys(%attrib)) |
---|
545 | { |
---|
546 | $attribs{$key} = $attrib{$key}; |
---|
547 | } |
---|
548 | } |
---|
549 | } |
---|
550 | } |
---|
551 | |
---|
552 | $$ctxt->setList(@valid_elems); |
---|
553 | $$ctxt->setValues(@values); |
---|
554 | $$ctxt->setAttribs(%attribs); |
---|
555 | |
---|
556 | if ($#valid_elems == -1) |
---|
557 | { |
---|
558 | return; |
---|
559 | } |
---|
560 | |
---|
561 | return 1; |
---|
562 | } |
---|
563 | |
---|
564 | |
---|
565 | sub getValue |
---|
566 | { |
---|
567 | my $self = shift; |
---|
568 | return $self->{VAL}; |
---|
569 | } |
---|
570 | |
---|
571 | |
---|
572 | sub calcStr |
---|
573 | { |
---|
574 | my $self = shift; |
---|
575 | my $elem = shift; |
---|
576 | return &XML::Stream::GetXMLData("value",$elem,"",$self->{VALUE}); |
---|
577 | } |
---|
578 | |
---|
579 | |
---|
580 | |
---|
581 | |
---|
582 | ############################################################################## |
---|
583 | # |
---|
584 | # AndOp - class to handle [ .... and .... ] ops |
---|
585 | # |
---|
586 | ############################################################################## |
---|
587 | package XML::Stream::XPath::AndOp; |
---|
588 | |
---|
589 | use vars qw (@ISA); |
---|
590 | @ISA = ( "XML::Stream::XPath::Op" ); |
---|
591 | |
---|
592 | sub new |
---|
593 | { |
---|
594 | my $proto = shift; |
---|
595 | my $self = $proto->allocate("AND","and"); |
---|
596 | $self->{OP_L} = shift; |
---|
597 | $self->{OP_R} = shift; |
---|
598 | return $self; |
---|
599 | } |
---|
600 | |
---|
601 | |
---|
602 | sub isValid |
---|
603 | { |
---|
604 | my $self = shift; |
---|
605 | my $ctxt = shift; |
---|
606 | |
---|
607 | my $opl = $self->{OP_L}->isValid($ctxt); |
---|
608 | my $opr = $self->{OP_R}->isValid($ctxt); |
---|
609 | |
---|
610 | if ($opl && $opr) |
---|
611 | { |
---|
612 | return 1; |
---|
613 | } |
---|
614 | else |
---|
615 | { |
---|
616 | return; |
---|
617 | } |
---|
618 | } |
---|
619 | |
---|
620 | |
---|
621 | sub display |
---|
622 | { |
---|
623 | my $self = shift; |
---|
624 | my $space = shift; |
---|
625 | $space = "" unless defined($space); |
---|
626 | |
---|
627 | print $space,"OP: type(AND)\n"; |
---|
628 | print $space," op_l: \n"; |
---|
629 | $self->{OP_L}->display($space." "); |
---|
630 | |
---|
631 | print $space," op_r: \n"; |
---|
632 | $self->{OP_R}->display($space." "); |
---|
633 | } |
---|
634 | |
---|
635 | |
---|
636 | |
---|
637 | ############################################################################## |
---|
638 | # |
---|
639 | # OrOp - class to handle [ .... or .... ] ops |
---|
640 | # |
---|
641 | ############################################################################## |
---|
642 | package XML::Stream::XPath::OrOp; |
---|
643 | |
---|
644 | use vars qw (@ISA); |
---|
645 | @ISA = ( "XML::Stream::XPath::Op" ); |
---|
646 | |
---|
647 | sub new |
---|
648 | { |
---|
649 | my $proto = shift; |
---|
650 | my $self = $proto->allocate("OR","or"); |
---|
651 | $self->{OP_L} = shift; |
---|
652 | $self->{OP_R} = shift; |
---|
653 | return $self; |
---|
654 | } |
---|
655 | |
---|
656 | |
---|
657 | sub isValid |
---|
658 | { |
---|
659 | my $self = shift; |
---|
660 | my $ctxt = shift; |
---|
661 | |
---|
662 | my @elems = $$ctxt->getList(); |
---|
663 | my @valid_elems; |
---|
664 | |
---|
665 | foreach my $elem (@elems) |
---|
666 | { |
---|
667 | my $tmp_ctxt_l = new XML::Stream::XPath::Value($elem); |
---|
668 | $tmp_ctxt_l->in_context(1); |
---|
669 | my $tmp_ctxt_r = new XML::Stream::XPath::Value($elem); |
---|
670 | $tmp_ctxt_r->in_context(1); |
---|
671 | |
---|
672 | my $opl = $self->{OP_L}->isValid(\$tmp_ctxt_l); |
---|
673 | my $opr = $self->{OP_R}->isValid(\$tmp_ctxt_r); |
---|
674 | |
---|
675 | if ($opl || $opr) |
---|
676 | { |
---|
677 | push(@valid_elems,$elem); |
---|
678 | } |
---|
679 | } |
---|
680 | |
---|
681 | $$ctxt->setList(@valid_elems); |
---|
682 | |
---|
683 | if ($#valid_elems == -1) |
---|
684 | { |
---|
685 | return; |
---|
686 | } |
---|
687 | |
---|
688 | return 1; |
---|
689 | } |
---|
690 | |
---|
691 | |
---|
692 | sub display |
---|
693 | { |
---|
694 | my $self = shift; |
---|
695 | my $space = shift; |
---|
696 | $space = "" unless defined($space); |
---|
697 | |
---|
698 | print "${space}OP: type(OR)\n"; |
---|
699 | print "$space op_l: "; |
---|
700 | $self->{OP_L}->display("$space "); |
---|
701 | |
---|
702 | print "$space op_r: "; |
---|
703 | $self->{OP_R}->display("$space "); |
---|
704 | } |
---|
705 | |
---|
706 | |
---|
707 | |
---|
708 | ############################################################################## |
---|
709 | # |
---|
710 | # FunctionOp - class to handle xxxx(...) ops |
---|
711 | # |
---|
712 | ############################################################################## |
---|
713 | package XML::Stream::XPath::FunctionOp; |
---|
714 | |
---|
715 | use vars qw (@ISA); |
---|
716 | @ISA = ( "XML::Stream::XPath::Op" ); |
---|
717 | |
---|
718 | sub new |
---|
719 | { |
---|
720 | my $proto = shift; |
---|
721 | my $function = shift; |
---|
722 | my $self = $proto->allocate("FUNCTION",$function); |
---|
723 | $self->{CLOSED} = 0; |
---|
724 | return $self; |
---|
725 | } |
---|
726 | |
---|
727 | |
---|
728 | sub addArg |
---|
729 | { |
---|
730 | my $self = shift; |
---|
731 | my $arg = shift; |
---|
732 | |
---|
733 | push(@{$self->{ARGOPS}},$arg); |
---|
734 | } |
---|
735 | |
---|
736 | |
---|
737 | sub isValid |
---|
738 | { |
---|
739 | my $self = shift; |
---|
740 | my $ctxt = shift; |
---|
741 | |
---|
742 | my $result; |
---|
743 | eval("\$result = &{\$XML::Stream::XPath::FUNCTIONS{\$self->{VALUE}}}(\$ctxt,\@{\$self->{ARGOPS}});"); |
---|
744 | return $result; |
---|
745 | } |
---|
746 | |
---|
747 | |
---|
748 | sub calcStr |
---|
749 | { |
---|
750 | my $self = shift; |
---|
751 | my $elem = shift; |
---|
752 | |
---|
753 | my $result; |
---|
754 | eval("\$result = &{\$XML::Stream::XPath::VALUES{\$self->{VALUE}}}(\$elem);"); |
---|
755 | return $result; |
---|
756 | |
---|
757 | } |
---|
758 | |
---|
759 | |
---|
760 | sub display |
---|
761 | { |
---|
762 | my $self = shift; |
---|
763 | my $space = shift; |
---|
764 | $space = "" unless defined($space); |
---|
765 | |
---|
766 | print $space,"OP: type(FUNCTION)\n"; |
---|
767 | print $space," $self->{VALUE}(\n"; |
---|
768 | foreach my $arg (@{$self->{ARGOPS}}) |
---|
769 | { |
---|
770 | print $arg,"\n"; |
---|
771 | $arg->display($space." "); |
---|
772 | } |
---|
773 | print "$space )\n"; |
---|
774 | } |
---|
775 | |
---|
776 | |
---|
777 | sub function_name |
---|
778 | { |
---|
779 | my $ctxt = shift; |
---|
780 | my (@args) = @_; |
---|
781 | |
---|
782 | my @elems = $$ctxt->getList(); |
---|
783 | my @valid_elems; |
---|
784 | my @valid_values; |
---|
785 | foreach my $elem (@elems) |
---|
786 | { |
---|
787 | my $text = &value_name($elem); |
---|
788 | if (defined($text)) |
---|
789 | { |
---|
790 | push(@valid_elems,$elem); |
---|
791 | push(@valid_values,$text); |
---|
792 | } |
---|
793 | } |
---|
794 | |
---|
795 | $$ctxt->setList(@valid_elems); |
---|
796 | $$ctxt->setValues(@valid_values); |
---|
797 | |
---|
798 | if ($#valid_elems == -1) |
---|
799 | { |
---|
800 | return; |
---|
801 | } |
---|
802 | |
---|
803 | return 1; |
---|
804 | } |
---|
805 | |
---|
806 | |
---|
807 | sub function_not |
---|
808 | { |
---|
809 | my $ctxt = shift; |
---|
810 | my (@args) = @_; |
---|
811 | |
---|
812 | my @elems = $$ctxt->getList(); |
---|
813 | my @valid_elems; |
---|
814 | foreach my $elem (@elems) |
---|
815 | { |
---|
816 | my $tmp_ctxt = new XML::Stream::XPath::Value($elem); |
---|
817 | $tmp_ctxt->in_context(1); |
---|
818 | if (!($args[0]->isValid(\$tmp_ctxt))) |
---|
819 | { |
---|
820 | push(@valid_elems,$elem); |
---|
821 | } |
---|
822 | } |
---|
823 | |
---|
824 | $$ctxt->setList(@valid_elems); |
---|
825 | |
---|
826 | if ($#valid_elems == -1) |
---|
827 | { |
---|
828 | return; |
---|
829 | } |
---|
830 | |
---|
831 | return 1; |
---|
832 | } |
---|
833 | |
---|
834 | |
---|
835 | sub function_text |
---|
836 | { |
---|
837 | my $ctxt = shift; |
---|
838 | my (@args) = @_; |
---|
839 | |
---|
840 | my @elems = $$ctxt->getList(); |
---|
841 | my @valid_elems; |
---|
842 | my @valid_values; |
---|
843 | foreach my $elem (@elems) |
---|
844 | { |
---|
845 | my $text = &value_text($elem); |
---|
846 | if (defined($text)) |
---|
847 | { |
---|
848 | push(@valid_elems,$elem); |
---|
849 | push(@valid_values,$text); |
---|
850 | } |
---|
851 | } |
---|
852 | |
---|
853 | $$ctxt->setList(@valid_elems); |
---|
854 | $$ctxt->setValues(@valid_values); |
---|
855 | |
---|
856 | if ($#valid_elems == -1) |
---|
857 | { |
---|
858 | return; |
---|
859 | } |
---|
860 | |
---|
861 | return 1; |
---|
862 | } |
---|
863 | |
---|
864 | |
---|
865 | sub function_startswith |
---|
866 | { |
---|
867 | my $ctxt = shift; |
---|
868 | my (@args) = @_; |
---|
869 | |
---|
870 | my @elems = $$ctxt->getList(); |
---|
871 | my @valid_elems; |
---|
872 | foreach my $elem (@elems) |
---|
873 | { |
---|
874 | my $val1 = $args[0]->calcStr($elem); |
---|
875 | my $val2 = $args[1]->calcStr($elem); |
---|
876 | |
---|
877 | if (substr($val1,0,length($val2)) eq $val2) |
---|
878 | { |
---|
879 | push(@valid_elems,$elem); |
---|
880 | } |
---|
881 | } |
---|
882 | |
---|
883 | $$ctxt->setList(@valid_elems); |
---|
884 | |
---|
885 | if ($#valid_elems == -1) |
---|
886 | { |
---|
887 | return; |
---|
888 | } |
---|
889 | |
---|
890 | return 1; |
---|
891 | } |
---|
892 | |
---|
893 | |
---|
894 | sub value_name |
---|
895 | { |
---|
896 | my $elem = shift; |
---|
897 | return &XML::Stream::GetXMLData("tag",$elem); |
---|
898 | } |
---|
899 | |
---|
900 | |
---|
901 | sub value_text |
---|
902 | { |
---|
903 | my $elem = shift; |
---|
904 | return &XML::Stream::GetXMLData("value",$elem); |
---|
905 | } |
---|
906 | |
---|
907 | |
---|
908 | |
---|
909 | $XML::Stream::XPath::FUNCTIONS{'name'} = \&function_name; |
---|
910 | $XML::Stream::XPath::FUNCTIONS{'not'} = \&function_not; |
---|
911 | $XML::Stream::XPath::FUNCTIONS{'text'} = \&function_text; |
---|
912 | $XML::Stream::XPath::FUNCTIONS{'starts-with'} = \&function_startswith; |
---|
913 | |
---|
914 | $XML::Stream::XPath::VALUES{'name'} = \&value_name; |
---|
915 | $XML::Stream::XPath::VALUES{'text'} = \&value_text; |
---|
916 | |
---|
917 | 1; |
---|
918 | |
---|
919 | |
---|