Repository navigation
Expand file tree
/
Copy path_auto_p.plugin.php
More file actions
664 lines (564 loc) · 17.9 KB
/
Copy path_auto_p.plugin.php
File metadata and controls
664 lines (564 loc) · 17.9 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
<?php
/**
* This file implements the Auto P plugin for b2evolution
*
* @author blueyed: Daniel HAHLER - {@link http://daniel.hahler.de/}
*
* @package plugins
*/
if( !defined('EVO_MAIN_INIT') ) die( 'Please, do not access this page directly.' );
/**
* The Auto-P Plugin.
*
* It wraps text blocks, which are devided by newline(s) into HTML P tags (paragraphs)
* and optionally replaces single newlines with BR tags (line breaks).
*
* @package plugins
*/
class auto_p_plugin extends Plugin
{
var $code = 'b2WPAutP';
var $name = 'Auto P';
var $priority = 80;
var $version = '5.0.0';
var $group = 'rendering';
var $short_desc;
var $long_desc;
var $help_topic = 'auto-p-plugin';
var $number_of_installs = 1;
/**
* List of block elements (we want a paragraph before and after), excludes: address, added: td, th
* @var string
*/
var $block_tags = 'blockquote|dd|div|dl|dt|fieldset|form|h[1-6]|hr|li|object|ol|p|pre|select|script|table|td|th|ul';
var $p_allowed_in = array('address', 'applet', 'blockquote', 'body', 'button', 'center', 'dd', 'del', 'div', 'fieldset', 'form', 'iframe', 'ins', 'li', 'map', 'noframes', 'noscript', 'object', 'td', 'th' );
var $br_allowed_in = array(
// Block level:
'address', 'center', 'dd', 'dir', 'div', 'dt', 'fieldset', 'form', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'hr', 'isindex', 'menu', 'noframes', 'noscript', 'p', 'pre',
// Inline:
'a', 'abbr', 'acronym', 'applet', 'b', 'basefont', 'bdo', 'big', 'button', 'cite', 'code', 'dfn', 'em', 'font', 'i', 'img', 'input', 'iframe', 'kbd', 'label', 'li', 'map', 'object', 'q', 'samp', 'select', 'small', 'span', 'strong', 'sub', 'sup', 'textarea', 'td', 'th', 'tt', 'var' );
/**
* Init
*/
function PluginInit( & $params )
{
$this->short_desc = T_('Automatic <P> and <BR> tags');
$this->long_desc = T_('This renderer will automatically detect paragraphs on double line-breaks and mark them with appropriate HTML <P> tags.<br />
Optionally, it will also mark single line breaks with HTML <BR> tags.');
}
/**
* @return array
*/
function GetDefaultSettings()
{
return array(
'br' => array(
'label' => T_('Line breaks'),
'type' => 'checkbox',
'defaultvalue' => 1,
'note' => T_('Make line breaks (<br />) for single newlines.'),
),
'add_p_in_block' => array(
'label' => T_('Add P tags in blocks (e.g. DIV)'),
'type' => 'checkbox',
'defaultvalue' => 1,
'note' => '',
),
'skip_tags' => array(
'label' => T_('Ignore tags'),
'type' => 'text',
'defaultvalue' => 'pre',
'note' => T_('A list of tags, in which no P or BR tags should get added.'),
),
);
}
/**
* Perform rendering
*/
function RenderItemAsHtml( & $params )
{
#echo '<hr style="border:1em solid blue;" />';
$this->use_auto_br = $this->Settings->get('br');
$this->add_p_in_block = $this->Settings->get('add_p_in_block');
$this->skip_tags = preg_split( '~\s+~', $this->Settings->get('skip_tags'), -1, PREG_SPLIT_NO_EMPTY );
$content = & $params['data'];
$content = preg_replace( "~(\r\n|\r)~", "\n", $content ); // cross-platform newlines
// Handle blocks, splitted by content separators: [teaserbreak] or [pagebreak]
$content_parts = split_outcode( array( '[teaserbreak]', '[pagebreak]' ), $content, true );
$content_parts[] = '';
$content = '';
for( $i = 0; $i < count( $content_parts ); $i = $i + 2 )
{
$content .= $this->handle_blocks( $content_parts[ $i ] );
$content .= $content_parts[ $i + 1 ];
}
return true;
}
/**
* Define here default collection/blog settings that are to be made available in the backoffice.
*
* @param array Associative array of parameters.
* @return array See {@link Plugin::get_coll_setting_definitions()}.
*/
function get_coll_setting_definitions( & $params )
{
$default_params = array_merge( $params,
array(
'default_comment_rendering' => 'stealth',
'default_post_rendering' => 'opt-out'
)
);
return parent::get_coll_setting_definitions( $default_params );
}
/**
* Define here default message settings that are to be made available in the backoffice.
*
* @param array Associative array of parameters.
* @return array See {@link Plugin::GetDefaultSettings()}.
*/
function get_msg_setting_definitions( & $params )
{
// set params to allow rendering for messages by default
$default_params = array_merge( $params, array( 'default_msg_rendering' => 'stealth' ) );
return parent::get_msg_setting_definitions( $default_params );
}
/**
* - Split text into blocks, using $block_tags pattern.
*
* @param string Text
* @param string The HTML tag where $text is in
* @return string
*/
function handle_blocks( $text, $in_tag = '' )
{
#echo '<h1>HANDLE_BLOCKS</h1>'; pre_dump( $text, $in_tag );
$new_text = '';
if( preg_match( '~^(.*?)(<\s*('.$this->block_tags.')(\b[^>]*)?>)~is', $text, $match ) )
{ // there's a block tag:
$tag = $match[3];
$before_tag = $match[1];
if( ! empty($before_tag) )
{ // Recurse (one pattern/callback deeper):
$new_text .= $this->handle_pre_blocks( $before_tag, $in_tag );
}
$text_after_tag = substr( $text, strlen($match[0]) );
if( empty($match[4]) || substr(rtrim($match[4]), -1) != '/' )
{ // Opening tag (and not self-closing): handle text in tag:
$new_text .= $match[2];
// Find closing tag:
list( $text_in_tag, $closing_tag, $NL_before, $NL_after ) = $this->split_text_for_tag($tag, $text_after_tag);
if( ! empty($text_in_tag) )
{ // Recurse (same level):
$text_in_tag = $this->handle_blocks( $text_in_tag, $tag );
}
$new_text .= $NL_before.$text_in_tag.$NL_after;
$new_text .= $closing_tag;
}
else
{ // self-closing tag:
$new_text .= $match[2];
}
if( ! empty($text_after_tag) )
{
#echo '<h1>RECURSE: text_after_tag (block)</h1>';
// Recurse (same level):
$new_text .= $this->handle_blocks( $text_after_tag, $in_tag );
}
}
else
{ // No BLOCKS in this $text:
$new_text = $this->handle_pre_blocks($text, $in_tag);
}
#pre_dump( 'HANDLE_BLOCKS return: ', $new_text, $in_tag );
return $new_text;
}
/**
* Handle text which may contain inline tags
*
* - Explode by \n\n
* - Merge blocks that span over multiple tags
* - Apply BR to blocks
* - Wrap block in P
*
* @param string Text
* @param string Tag where $text is in
* @return string
*/
function handle_pre_blocks( $text, $in_tag )
{
#echo '<h2>HANDLE_PRE_BLOCKS</h2>'; pre_dump( $text, $in_tag );
if( $in_tag )
{
if( in_array($in_tag, $this->skip_tags) )
{
return $text;
}
if( ! in_array($in_tag, $this->p_allowed_in) )
{ // we're in a tag, where no P tags are allowed, so just do the BRs:
return $this->handle_br( $text, $in_tag );
}
}
$text_lines = preg_split( '~(\n\n+)~', $text, -1, /*PREG_SPLIT_NO_EMPTY |*/ PREG_SPLIT_DELIM_CAPTURE );
$text_lines[] = ''; // dummy
#echo '<strong>text_lines</strong><br />'; pre_dump( $text_lines, $in_tag );
$new_blocks = array();
$count_new_blocks = 0;
for( $i = 0, $n = count($text_lines); $i < $n; $i = $i+2 /* every second block is a real one */ )
{
if( ! isset($new_blocks[$count_new_blocks]) )
{
$new_blocks[$count_new_blocks] = '';
}
if( $text_lines[$i] == '' )
{
$new_blocks[$count_new_blocks] .= $text_lines[$i+1];
$new_blocks[$count_new_blocks+1] = ''; // dummy
continue;
}
$new_blocks[$count_new_blocks] .= $text_lines[$i];
$new_blocks[$count_new_blocks+1] = $text_lines[$i+1];
$count_new_blocks = $count_new_blocks+2;
}
$text_lines = $new_blocks;
#echo '<strong>new text_lines</strong><br />'; pre_dump( $new_blocks );
if( trim($text) == '' )
{ // there's only whitespace
return $text;
}
// fix it, so no (inline) tags span across multiple blocks:
$new_blocks = array();
$new_blocks_nowrap = array(); // blocks that should not be wrapped in P (opening without closing tag or vice versa)
$count_new_blocks = 0;
$looking_for_close_tag = array();
for( $i = 0, $n = count($text_lines); $i < $n; $i = $i+2 /* every 2nd line is a real block */ )
{
$line = $text_lines[$i];
if( ! isset($new_blocks[$count_new_blocks]) )
{
$new_blocks[$count_new_blocks] = '';
$line_copy = $line;
while( preg_match( '~^(.*?)(<\s*/\s*(\w+)(\s+[^>]*?)?>)~is', $line_copy, $match )
&& !(preg_match( '~^(.*?)(<\s*'.$match[3].'(\s+[^>]*?(\s*/\s*)?)?>)~is', $new_blocks[$count_new_blocks].$match[1] )) )
{ // a closing tag:
$new_blocks[$count_new_blocks] .= $match[0];
$line_copy = substr($line_copy, strlen($match[0]));
}
if( ! empty($new_blocks[$count_new_blocks]) )
{ // we've found a closing tag with no opening tag, this must not get wrapped in P:
$new_blocks_nowrap[] = $count_new_blocks;
$new_blocks[$count_new_blocks+1] = ''; // dummy
$new_blocks[$count_new_blocks+2] = ''; // init new
$line = substr( $line, strlen($new_blocks[$count_new_blocks]) );
$count_new_blocks = $count_new_blocks+2;
}
}
else
{ // we're looking for a closing tag:
// Find closing tag:
$line_copy = $line;
list( $text_in_tag, $closing_tag, $NL_before, $NL_after ) = $this->split_text_for_tag( $looking_for_close_tag['tag'], $line_copy /* by ref */ );
if( empty($closing_tag) )
{ // not in this whole block:
$new_blocks[ $count_new_blocks ] .= $line.$text_lines[$i+1];
continue;
}
// Tag has been found:
$looking_for_close_tag = array();
}
if( preg_match( '~^(.*?)(<\s*(\w+)(\s+[^>/]*)?(\s*/\s*)?>)~is', $line, $match ) )
{ // a opening tag:
$tag = $match[3];
$pos_after_tag = strlen($match[0]);
while( ! empty($match[5]) /* "/" */ )
{ // self-closing tag, find next:
$tag = false;
if( preg_match( '~^(.*?)(<\s*(\w+)(\s+[^>/]*)?(\s*/\s*)?>)~is', substr($line, $pos_after_tag), $match ) )
{
$tag = $match[3];
$pos_after_tag += strlen($match[0]);
}
}
$text_after_tag = substr($line, $pos_after_tag);
if( $tag )
{
// Find closing tag:
list( $text_in_tag, $closing_tag, $NL_before, $NL_after ) = $this->split_text_for_tag($tag, $text_after_tag /* by ref */ );
if( empty($closing_tag) )
{
$looking_for_close_tag = array(
'tag' => $tag,
'block' => $i,
'pos' => strlen($new_blocks[ $count_new_blocks ])+strlen($match[1]), // position where the unclosed tag begins
);
$new_blocks[ $count_new_blocks ] .= $line.$text_lines[$i+1];
continue;
}
}
}
$new_blocks[ $count_new_blocks ] .= $line;
$new_blocks[ ++$count_new_blocks ] = $text_lines[$i+1];
$count_new_blocks++;
}
if( $looking_for_close_tag )
{
#echo '<h1>looking_for_close_tag</h1>'; pre_dump( $looking_for_close_tag );
$new_blocks[ $count_new_blocks+1 ] = ''; // dummy
if( $looking_for_close_tag['pos'] > 0 )
{ // move part of last block without closing tag to an own block:
$new_blocks[ $count_new_blocks+2 ] = substr($new_blocks[ $count_new_blocks ], $looking_for_close_tag['pos']);
$new_blocks[ $count_new_blocks ] = substr($new_blocks[ $count_new_blocks ], 0, $looking_for_close_tag['pos']);
$new_blocks[ $count_new_blocks+3 ] = ''; // dummy
$new_blocks_nowrap[] = $count_new_blocks+2;
}
else
{ // the whole block should not get wrapped!
$new_blocks_nowrap[] = $count_new_blocks;
}
}
#echo '<h1>new_blocks:</h1>'; pre_dump( $new_blocks, $new_blocks_nowrap );
$after_block_wp = '';
$before_block_wp = '';
if( empty($in_tag) )
{
$wrap_in_p = true;
}
elseif( in_array($in_tag, $this->p_allowed_in) )
{
if( ! $this->add_p_in_block )
{
$wrap_in_p = false;
}
elseif( count($new_blocks) > 2 )
{
$wrap_in_p = true;
}
else
{
$wrap_in_p = false;
if( substr( $new_blocks[0], 0, 1 ) == "\n" )
{
$before_block_wp = "\n";
$new_blocks[0] = substr( $new_blocks[0], 1 );
$wrap_in_p = true;
}
if( substr( $new_blocks[0], -1 ) == "\n" )
{
$after_block_wp = "\n";
$new_blocks[0] = substr( $new_blocks[0], 0, -1 );
$wrap_in_p = true;
}
}
}
else
{
$wrap_in_p = false;
}
if( $new_blocks[count($new_blocks)-2] == '' )
{
array_pop($new_blocks);
array_pop($new_blocks);
}
$new_text = '';
for( $i = 0, $n = count($new_blocks); $i < $n; $i = $i+2 )
{
#echo '<h2>--new_blocks['.$i.']: '; pre_dump( $new_blocks[$i] ); echo '</h2>';
$this_wrap_in_p = $wrap_in_p && ! in_array( $i, $new_blocks_nowrap ); // only wrap this, if it's a valid block
if( empty($new_blocks[$i]) )
{
if( $this_wrap_in_p )
{ // not the last one
$block = '<p></p>';
}
else
{
$block = '';
}
$new_text .= $before_block_wp.$block.$after_block_wp.$new_blocks[$i+1];
continue;
}
list($new_block, $has_p) = $this->handle_pre_blocks_helper( $new_blocks[$i], $in_tag, $this_wrap_in_p );
$new_text .= $before_block_wp.$new_block.$after_block_wp.$new_blocks[$i+1];
}
#pre_dump( 'HANDLE_PRE_BLOCKS return: ', $new_text, $in_tag );
return $new_text;
}
/**
* This is a helper for handling blocks from {@link handle_pre_blocks_helper()}.
*
* What comes here is supposed to have no block tags.
*
* @return array array( $text, $has_p )
*/
function handle_pre_blocks_helper( $block, $in_tag, $wrap_in_p, $ignore_NL = true )
{
#pre_dump( 'HANDLE_PRE_BLOCKS_HELPER begin', $block, $in_tag );
$has_p = NULL;
$r = '';
if( $in_tag == 'blockquote' )
{ // XHTML strict: blockquote content needs to be in block tag
$in_tag = 'p';
$wrap_in_p = true; // at the end
}
// Remove newlines at start and end (will get re-applied later):
$NL_start = '';
$NL_end = '';
if( $ignore_NL )
{
while( $block{0} == "\n" )
{
$NL_start .= $block{0};
$block = substr($block, 1);
}
while( substr($block, -1) == "\n" )
{
$NL_end .= substr($block, -1);
$block = substr($block, 0, -1);
}
}
if( preg_match( '~^(.*?)(<\s*(\w+)(\s+[^>]*)?>)~is', $block, $match ) )
{ // a tag:
$tag = $match[3];
$before_tag = $match[1];
if( ! empty($before_tag) )
{ // Delegate to handle_br:
$r .= $this->handle_br( $before_tag, $in_tag );
}
// Opening tag:
$r .= $match[2];
$text_after_tag = substr( $block, strlen($match[0]) );
// Find closing tag:
list( $text_in_tag, $closing_tag, $NL_before, $NL_after ) = $this->split_text_for_tag($tag, $text_after_tag);
if( ! empty($text_in_tag) )
{ // Recurse (same level) - with the optional newlines at start and end, because in an inline tag every linebreak should become a BR:
list($text_in_tag, $sub_has_p) = $this->handle_pre_blocks_helper( $NL_before.$text_in_tag.$NL_after, $tag, false, false );
}
$r .= $text_in_tag;
$r .= $closing_tag;
if( ! empty($text_after_tag) )
{
#echo '<h1>RECURSE: text_after_tag (handle_pre_blocks)</h1>';
// Recurse (same level):
list( $text_after_tag, $sub_has_p ) = $this->handle_pre_blocks_helper( $text_after_tag, $in_tag, false, false );
$r .= $text_after_tag;
}
}
else
{ // No tags in this $text:
$r .= $this->handle_br( $block, $in_tag );
}
if( ! empty($wrap_in_p) )
{
$r = '<p>'.$r.'</p>';
$has_p = true;
}
// re-apply newlines from start and end:
$r = $NL_start.$r.$NL_end;
#pre_dump( 'HANDLE_PRE_BLOCKS_HELPER return: ', $r, $has_p );
return array( $r, $has_p );
}
/**
* Handles adding BR.
*
* @return string
*/
function handle_br( $text, $in_tag )
{
#echo '<h3>LEVEL>1 (BR)</h3>'; pre_dump( $text );
if( empty($in_tag) || in_array($in_tag, $this->br_allowed_in) )
{
$new_text = $this->autobr($text);
}
else
{
$new_text = $text;
}
#pre_dump( 'HANDLE_BR return: ', $new_text, $in_tag );
return $new_text;
}
/**
* Split the text for a given tag, mainly to find the closing tag.
*
* @return array
*/
function split_text_for_tag($tag, & $text_after_tag)
{
#echo '<strong>split_text_for_tag</strong><br />'; pre_dump( $tag, $text_after_tag );
$depth = 1;
$text_in_tag = '';
$loop_text = $text_after_tag;
while( 1 )
{
#echo '<hr />loop_text:'; pre_dump( $loop_text );
if( preg_match( '~^(.*?)(<\s*(/)?\s*'.preg_quote( $tag, '~' ).'\s*(/\s*)?>)~is', $loop_text, $after_match ) )
{
#pre_dump( 'after_match', $after_match );
$text_in_tag .= $after_match[1];
$found_tag = $after_match[2];
$is_closing = ( ! empty($after_match[3]) || ! empty($after_match[4]) /* self-closing */ );
if( $is_closing )
{
$depth--;
if( $depth == 0 )
{ // found the matching closing tag:
$closing_tag = $found_tag;
break;
}
else
{ // this closing tag is part of the outer:
$text_in_tag .= $found_tag;
}
}
else
{ // found the same, but opening tag (nested)
$text_in_tag .= $found_tag;
$depth++;
}
// skip what we've matched:
$loop_text = substr($loop_text, strlen($after_match[0]) );
}
else
{ // did not find the closing tag.. :/
$closing_tag = '';
return array( false, false, false, false );
}
}
// remove newline at start and end:
if( substr($text_in_tag, 0, 1) == "\n" )
{
$NL_before = "\n";
$text_in_tag = substr($text_in_tag, 1);
}
else
{
$NL_before = '';
}
if( substr($text_in_tag, -1) == "\n" )
{
$NL_after = "\n";
$text_in_tag = substr($text_in_tag, 0, -1);
}
else
{
$NL_after = '';
}
$text_after_tag = substr( $text_after_tag, strlen($NL_before.$text_in_tag.$NL_after)+strlen($closing_tag) );
$r = array( $text_in_tag, $closing_tag, $NL_before, $NL_after );
#pre_dump( 'return: ', $r, $text_after_tag );
return $r;
}
/**
* Add "<br />" to the end of newlines, which do not end with "<br />" already and which aren't
* the last line, if the "Auto-BR" setting is enabled.
*
* @return string
*/
function autobr( $text, $replace_last = true )
{
if( ! $this->use_auto_br )
{ // don't make <br />'s
return $text;
}
return preg_replace( '~(?<!<br />)\n'.( $replace_last ? '' : '(?!\z)' ).'~i', "<br />\n", $text );
}
}
?>