1: # The LearningOnline Network with CAPA
2: # Tags Default Definition Module
3: #
4: # $Id: londefdef.pm,v 1.472 2023/07/13 19:07:27 raeburn Exp $
5: #
6: #
7: # Copyright Michigan State University Board of Trustees
8: #
9: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
10: #
11: # LON-CAPA is free software; you can redistribute it and/or modify
12: # it under the terms of the GNU General Public License as published by
13: # the Free Software Foundation; either version 2 of the License, or
14: # (at your option) any later version.
15: #
16: # LON-CAPA is distributed in the hope that it will be useful,
17: # but WITHOUT ANY WARRANTY; without even the implied warranty of
18: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19: # GNU General Public License for more details.
20: #
21: # You should have received a copy of the GNU General Public License
22: # along with LON-CAPA; if not, write to the Free Software
23: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24: #
25: # /home/httpd/html/adm/gpl.txt
26: #
27: # http://www.lon-capa.org/
28: ## Copyright for TtHfunc and TtMfunc by Ian Hutchinson.
29: # TtHfunc and TtMfunc (the "Code") may be compiled and linked into
30: # binary executable programs or libraries distributed by the
31: # Michigan State University (the "Licensee"), but any binaries so
32: # distributed are hereby licensed only for use in the context
33: # of a program or computational system for which the Licensee is the
34: # primary author or distributor, and which performs substantial
35: # additional tasks beyond the translation of (La)TeX into HTML.
36: # The C source of the Code may not be distributed by the Licensee
37: # to any other parties under any circumstances.
38: #
39:
40: package Apache::londefdef;
41:
42: use Apache::lonnet;
43: use strict;
44: use Apache::lonxml;
45: use Apache::lontable;
46: use Image::Magick;
47: use Apache::lonmenu();
48: use Apache::lonmeta();
49: use Apache::lonlocal;
50: use Apache::loncommon();
51: use Apache::Constants qw(:common);
52: use File::Basename;
53: use LONCAPA();
54: # use Data::Dumper;
55:
56: BEGIN {
57:
58: &Apache::lonxml::register('Apache::londefdef',('a','abbr','acronym','accessrule','address','allow','applet','area','b','base','basefont','bgo','bgsound','big','blink','blockquote','blankspace','body','br','button','caption','center','cite','code','col','colgroup','dd','del','dfn','dir','div','dl','dt','em','embed','externallink','fieldset','font','form','frame','frameset','h1','h2','h3','h4','h5','h6','head','hr','html','i','iframe','img','input','ins','insert','isindex','kbd','keygen','label','layer','legend','li','link','m','map','marquee','menu','meta','multicol','nobr','noembed','noframes','nolayer','noscript','object','ol','optgroup','option','output','p','param','pre','q','s','samp','select','server','small','spacer','span','strike','strong','style','sub','sup','table','tbody','td','textarea','tfoot','th','thead','title','tr','tt','tthoption','u','ul','var','wbr','hideweboutput'));
59:
60: }
61:
62:
63: sub initialize_londefdef {
64: $Apache::londefdef::TD_redirection=0;
65: @Apache::londefdef::table = ();
66: $Apache::londefdef::select=0;
67: undef(@Apache::londefdef::description);
68: @Apache::londefdef::DD=(0);
69: @Apache::londefdef::DT=(0);
70: @Apache::londefdef::seenDT=(0);
71: $Apache::londefdef::list_index=0;
72: undef($Apache::londefdef::head);
73: undef($Apache::londefdef::title);
74: }
75:
76: #======================= TAG SUBROUTINES =====================
77: #-- <output>
78: sub start_output {
79: my ($target) = @_;
80: if ($target eq 'meta') { $Apache::lonxml::metamode--; }
81: return '';
82: }
83: sub end_output {
84: my ($target) = @_;
85: if ($target eq 'meta') { $Apache::lonxml::metamode++; }
86: return '';
87: }
88: #-- <m> tag
89: sub start_m {
90: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
91: my $currentstring = '';
92: my $inside = &Apache::lonxml::get_all_text_unbalanced("/m",$parser);
93: if ($target eq 'web' || $target eq 'analyze') {
94: &Apache::lonxml::debug("M is starting with:$inside:");
95: if (!($inside =~ /^\s*\$.*\$\s*$/ || $inside =~ /^\s*\\[([].*\\[)\]]\s*$/)) {
96: # Non-math LaTeX will not be rendered correctly with MathJax
97: # and it should be avoided anyway.
98: # On top of that, MathJax will render math without $, but
99: # it will fail with tth. This is worth a warning.
100: # (even though some people might just use latex for printing)
101: &Apache::lonxml::warning(&mt('Missing $ in [_1].','<m>'));
102: } elsif (($env{'browser.type'} eq 'safari') && ($env{'form.editxmltext'}) &&
103: (($env{'form.problemmode'} eq 'view') || ($env{'form.problemmode'} eq 'discard'))) {
104: my $delimiter;
105: if ($inside =~ /\$$/) {
106: $delimiter = '$';
107: } elsif ($inside =~ /\\([)\]])$/) {
108: $delimiter = $1;
109: }
110: if ($delimiter) {
111: &Apache::lonxml::warning(&mt('Insert a space between [_1] and [_2].',
112: $delimiter,'</m>'));
113: }
114: }
115: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
116: if ($eval eq 'on') {
117: $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
118: #&Apache::lonxml::debug("M is evaluated to:$inside:");
119: }
120: my $tex = $inside;
121: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
122: $currentstring = &Apache::lontexconvert::converted(\$inside,$display);
123: if ($Apache::lontexconvert::errorstring) {
124: my $errormsg='<pre>'.&HTML::Entities::encode($Apache::lontexconvert::errorstring,'<>&"').'</pre> occurred while attempting to convert this TeX: <pre>';
125: $tex = &HTML::Entities::encode($tex,'<>&"');
126: my ($linenumber) =
127: ($Apache::lontexconvert::errorstring =~ /Line (\d+)/);
128: if (defined($linenumber)) {
129: my @tex=split("\n",$tex);
130: $tex[$linenumber]='<b><font color="red">'.
131: $tex[$linenumber].'</font></b>';
132: $tex=join("\n",@tex);
133: }
134: &Apache::lonxml::warning($errormsg.$tex.'</pre>');
135: $Apache::lontexconvert::errorstring='';
136: }
137: #&Apache::lonxml::debug("M is ends with:$currentstring:");
138: $Apache::lonxml::post_evaluate=0;
139: } elsif ($target eq 'tex') {
140:
141: $currentstring = $inside;
142: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
143: if ($eval eq 'on') {
144: $currentstring=&Apache::run::evaluate($currentstring,$safeeval,$$parstack[-1]);
145: }
146: if ($currentstring=~/^(\s*\\\\\s*)*$/) {$currentstring = ' \vskip 0 mm ';}
147: # detect simple math mode entry exits, and convert them
148: # to use \ensuremath ... unless there's a \verb inside.
149: if (! ($currentstring=~/\\verb/)) {
150: if ($currentstring=~/^\s*\$[^\$].*\$\s*$/) {
151: $currentstring=~s/^(\s*)\$/$1/;
152: $currentstring=~s/\$(\s*)$/$1/;
153: $currentstring='\ensuremath{'.$currentstring.'}';
154: }
155: }
156: $Apache::lonxml::post_evaluate=0;
157: }
158: return $currentstring;
159: }
160:
161: sub end_m {
162: my ($target,$token) = @_;
163: my $currentstring = '';
164: if ($target eq 'tex') {
165: $currentstring = "";
166: }
167: return $currentstring;
168: }
169:
170: sub start_tthoption {
171: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
172: my $result;
173: if ($target eq 'web' || $target eq 'webgrade') {
174: my $inside = &Apache::lonxml::get_all_text("/tthoption",$parser,
175: $style);
176: $inside=~s/^\s*//;
177: if ($env{'browser.mathml'}) {
178: &tth::ttmoptions($inside);
179: } else {
180: &tth::tthoptions($inside);
181: }
182: }
183: return $result;
184: }
185:
186: sub end_tthoption {
187: my ($target,$token) = @_;
188: my $result;
189: return $result;
190: }
191:
192: #-- <html> tag (end tag optional)
193: sub start_html {
194: my ($target,$token) = @_;
195: my $currentstring = '';
196: if ($target eq 'web' || $target eq 'edit' || $target eq 'webgrade' ) {
197: # start_body() takes care of emitting the <html>
198: } elsif ($target eq 'tex') {
199:
200: $currentstring .= &latex_header();
201: }
202: return $currentstring;
203: }
204:
205: sub end_html {
206: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
207: my $currentstring = '';
208: if ($target eq 'web' || $target eq 'webgrade') {
209: # end_body takes care of the </html>
210: }
211: return $currentstring;
212: }
213:
214: #-- <head> tag (end tag optional)
215: sub start_head {
216: my ($target,$token) = @_;
217: my $currentstring = '';
218: if ($target eq 'web' || $target eq 'webgrade') {
219: &Apache::lonxml::startredirection();
220: }
221: return $currentstring;
222: }
223:
224: sub end_head {
225: my ($target,$token) = @_;
226: my $currentstring = '';
227: if (($target eq 'web' && $env{'request.state'} eq 'published') ||
228: ($target eq 'webgrade' && $env{'request.state'} eq 'published')) {
229: # in case there is a </head> but no <head>
230: if ($Apache::lonxml::redirection) {
231: $Apache::londefdef::head = &Apache::lonxml::endredirection();
232: }
233: }
234: return $currentstring;
235: }
236:
237: #-- <map> tag (end tag required)
238: sub start_map {
239: my ($target,$token) = @_;
240: my $currentstring = '';
241: if ($target eq 'web' || $target eq 'webgrade') {
242: $currentstring = $token->[4];
243: }
244: return $currentstring;
245: }
246:
247: sub end_map {
248: my ($target,$token) = @_;
249: my $currentstring = '';
250: if ($target eq 'web' || $target eq 'webgrade') {
251: $currentstring = $token->[2];
252: }
253: return $currentstring;
254: }
255:
256: #-- <select> tag (end tag required)
257: sub start_select {
258: my ($target,$token) = @_;
259: my $currentstring = '';
260: if ($target eq 'web' || $target eq 'webgrade') {
261: $currentstring = $token->[4];
262: } elsif ($target eq 'tex') {
263: $Apache::londefdef::select=0;
264: }
265: return $currentstring;
266: }
267:
268: sub end_select {
269: my ($target,$token) = @_;
270: my $currentstring = '';
271: if ($target eq 'web' || $target eq 'webgrade') {
272: $currentstring = $token->[2];
273: }
274: return $currentstring;
275: }
276:
277: #-- <option> tag (end tag optional)
278: sub start_option {
279: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
280: my $currentstring = '';
281: if ($target eq 'web' || $target eq 'webgrade') {
282: $currentstring = $token->[4];
283: } elsif ($target eq 'tex') {
284: $Apache::londefdef::select++;
285: if ($Apache::londefdef::select == 1) {
286: $currentstring='\noindent\fbox{'.&Apache::lonxml::get_param('value',$parstack,$safeeval).'}\keephidden{';
287: } else {
288: $currentstring='\keephidden{';
289: }
290: }
291: return $currentstring;
292: }
293:
294: sub end_option {
295: my ($target,$token) = @_;
296: my $currentstring = '';
297: if ($target eq 'web' || $target eq 'webgrade') {
298: $currentstring = $token->[2];
299: } elsif ($target eq 'tex') {
300: $currentstring='}';
301: }
302: return $currentstring;
303: }
304:
305: #-- <input> tag (end tag forbidden)
306: sub start_input {
307: my ($target,$token) = @_;
308: my $currentstring = '';
309: if ($target eq 'web' || $target eq 'webgrade') {
310: $currentstring = $token->[4];
311: }
312: return $currentstring;
313: }
314:
315: sub end_input {
316: my ($target,$token) = @_;
317: my $currentstring = '';
318: if ($target eq 'web' || $target eq 'webgrade') {
319: $currentstring = $token->[2];
320: }
321: return $currentstring;
322: }
323:
324: #-- <textarea> tag (end tag required)
325: sub start_textarea {
326: my ($target,$token) = @_;
327: my $currentstring = '';
328: if ($target eq 'web' || $target eq 'webgrade') {
329: $currentstring = $token->[4];
330: }
331: return $currentstring;
332: }
333:
334: sub end_textarea {
335: my ($target,$token) = @_;
336: my $currentstring = '';
337: if ($target eq 'web' || $target eq 'webgrade') {
338: $currentstring = $token->[2];
339: }
340: return $currentstring;
341: }
342:
343: #-- <form> tag (end tag required)
344: sub start_form {
345: my ($target,$token) = @_;
346: my $currentstring = '';
347: if ($target eq 'web' || $target eq 'webgrade') {
348: $currentstring = $token->[4];
349: }
350: return $currentstring;
351: }
352:
353: sub end_form {
354: my ($target,$token) = @_;
355: my $currentstring = '';
356: if ($target eq 'web' || $target eq 'webgrade') {
357: $currentstring = $token->[2];
358: }
359: return $currentstring;
360: }
361:
362: #-- <title> tag (end tag required)
363: sub start_title {
364: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
365: my $currentstring = '';
366: if ($target eq 'web' || $target eq 'webgrade') {
367: $Apache::londefdef::title =
368: &Apache::lonxml::get_all_text('/title',$parser,$style);
369: } elsif ($target eq 'tex') {
370: $currentstring .= '\keephidden{Title of the document: ';
371: }
372: if ($target eq 'meta') {
373: $currentstring='<title>';
374: &start_output($target);
375: }
376: return $currentstring;
377: }
378:
379: sub end_title {
380: my ($target,$token) = @_;
381: my $currentstring = '';
382: if ($target eq 'web' || $target eq 'webgrade') {
383: # start_title takes care of swallowing the title
384: } elsif ($target eq 'tex') {
385: $currentstring .= '}';
386: }
387: if ($target eq 'meta') {
388: &end_output($target);
389: $currentstring='</title>';
390: }
391: return $currentstring;
392: }
393:
394: #-- <meta> tag (end tag forbidden)
395: sub start_meta {
396: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
397: my $currentstring = '';
398: if ($target eq 'web' || $target eq 'webgrade') {
399: my $args='';
400: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
401: if ($args eq '') {
402: &Apache::lonxml::get_all_text("/meta",$parser,$style);
403: } else {
404: $currentstring = $token->[4];
405: }
406: if ($env{'form.grade_imsexport'}) {
407: $currentstring = '';
408: }
409: } elsif ($target eq 'meta') {
410: unless (&Apache::lonxml::get_param
411: ('http-equiv',$parstack,$safeeval,undef,1)) {
412: my $name=$token->[2]->{'name'};
413: $name=~tr/A-Z/a-z/;
414: $name=~s/\s/\_/gs;
415: $name=~s/\W//gs;
416: if ($name) {
417: $currentstring='<'.$name;
418: my $display=&Apache::lonxml::get_param
419: ('display',$parstack,$safeeval,undef,1);
420: if ($display) {
421: $display=~s/\"/\'/g;
422: $currentstring.=' display="'.$display.'"';
423: }
424: $currentstring.='>'.
425: &Apache::lonxml::get_param
426: ('content',$parstack,$safeeval,undef,1).
427: '</'.$name.'>';
428: }
429: my $display=&Apache::lonxml::get_param
430: ('display',$parstack,$safeeval,undef,1);
431: if ($display) {
432: $display=&HTML::Entities::encode($display,'<>&"');
433: $currentstring.='<'.$name.'.display>'.$display.
434: '</'.$name.'.display>';
435: }
436: }
437: } elsif ($target eq 'tex') {
438: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
439: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
440: if ((not defined $content) && (not defined $name)) {
441: &Apache::lonxml::startredirection();
442: }
443: } elsif ($target eq 'edit') {
444: $currentstring .= &Apache::edit::tag_start($target,$token);
445: $currentstring .= &Apache::edit::text_arg('Name:','name',$token,30);
446: $currentstring .= &Apache::edit::text_arg('Content:','content',$token,70);
447: $currentstring .= &Apache::edit::end_row();
448: } elsif ($target eq 'modified') {
449: my $constructtag =
450: &Apache::edit::get_new_args($token,$parstack,$safeeval,
451: 'name','content');
452: if ($constructtag) { $currentstring = &Apache::edit::rebuild_tag($token); }
453: }
454: return $currentstring;
455: }
456:
457: sub end_meta {
458: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
459: my $currentstring = '';
460: if ($target eq 'web' || $target eq 'webgrade') {
461: my $args='';
462: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
463: if ($args ne '') {
464: $currentstring = $token->[4];
465: }
466: } elsif ($target eq 'tex') {
467: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
468: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
469: if ((not defined $content) && (not defined $name)) {
470: &Apache::lonxml::endredirection();
471: }
472: }
473: return $currentstring;
474: }
475:
476: sub insert_meta {
477: return '
478: <meta />';
479: }
480:
481: #-- <start> tag
482: sub start_style {
483: my ($target, $token, $tagstack, $parstack, $parser, $safeeval, $style) = @_;
484: my $currentstring = '';
485:
486: if ($target eq 'tex') {
487: Apache::lonxml::startredirection();
488: } else {
489: $currentstring = $token->[4];
490: }
491:
492: return $currentstring;
493: }
494:
495: sub end_style {
496: my ($target, $token, $tagstack, $parstack, $parser, $safeeval) = @_;
497: my $currentstring = '';
498:
499: if ($target eq 'tex') {
500: Apache::lonxml::endredirection();
501: } else {
502: $currentstring = $token->[2];
503: }
504: return $currentstring;
505: }
506:
507: # accessrule
508: sub start_accessrule {
509: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
510: my $currentstring = '';
511: my $eff =&Apache::lonxml::get_param('effect',$parstack,$safeeval,undef,1);
512: my $realm=&Apache::lonxml::get_param('realm', $parstack,$safeeval,undef,1);
513: my $role =&Apache::lonxml::get_param('role', $parstack,$safeeval,undef,1);
514: my $type =&Apache::lonxml::get_param('type', $parstack,$safeeval,undef,1);
515:
516: my ($dom,$crs,$sec,$separator);
517: if ($type eq 'user') {
518: ($dom,$crs,$sec)=split(m{/},$realm);
519: $crs = &LONCAPA::clean_username($crs);
520: $separator = '/';
521: } else {
522: ($dom,$crs,$sec)=split(/\_/,$realm);
523: $crs = &LONCAPA::clean_courseid($crs);
524: $separator = '_';
525: }
526: $dom = &LONCAPA::clean_domain($dom);
527:
528: $sec =~s/\W//;
529: $realm = $dom;
530: if ($crs =~ /\S/) { $realm .= $separator.$crs; }
531: if ($sec =~ /\S/) { $realm .= $separator.$sec; }
532: $role=~s/\W//g;
533:
534: if ($target eq 'web') {
535: my $args='';
536: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
537: if ($args eq '') {
538: &Apache::lonxml::get_all_text("/accessrule",$parser,$style);
539: } else {
540: $currentstring = $token->[4];
541: }
542: }
543: if ($target eq 'meta') {
544: $currentstring='<rule>'.$eff.':'.$realm.':'.$role.':'.$type.'</rule>';
545: }
546: return $currentstring;
547: }
548:
549: sub end_accessrule {
550: my ($target,$token,$tagstack,$parstack,$parser) = @_;
551: my $currentstring = '';
552: if ($target eq 'web') {
553: my $args='';
554: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
555: if ($args ne '') {
556: $currentstring = $token->[4];
557: }
558: }
559: return $currentstring;
560: }
561:
562: sub generate_css_links {
563: my $links;
564: my $css_href = &Apache::lonnet::EXT('resource.0.cssfile');
565: if ($css_href =~ /\S/) {
566: &Apache::lonxml::extlink($css_href);
567: $links .=
568: '<link rel="stylesheet" type="text/css" href="'.$css_href.'" />';
569: }
570: return $links;
571: }
572:
573: #-- <body> tag (end tag required)
574: sub start_body {
575: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
576: my $currentstring = '';
577:
578: if ($target eq 'web' || $target eq 'webgrade') {
579: if ($Apache::lonhomework::parsing_a_problem) {
580: &Apache::lonxml::warning("<body> tag found inside of <problem> tag this can cause problems.");
581: return '';
582: }
583:
584: if (&is_inside_of($tagstack, "head")) {
585: &end_head(@_);
586: }
587:
588: my $extra_head = &generate_css_links();
589:
590: # Breadcrumbs
591: &Apache::lonhtmlcommon::clear_breadcrumbs();
592: if ($env{'request.state'} eq 'construct') {
593: my $url=&Apache::lonnet::hreflocation('',$env{'request.filename'});
594: my $text = 'Authoring Space';
595: my $href = &Apache::loncommon::authorspace($url);
596: if ($env{'request.course.id'}) {
597: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
598: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
599: if ($href eq "/priv/$cdom/$cnum/") {
600: $text = 'Course Authoring Space';
601: }
602: }
603: &Apache::lonhtmlcommon::add_breadcrumb({
604: 'text' => $text,
605: 'href' => $href,
606: });
607: &Apache::lonhtmlcommon::add_breadcrumb({
608: 'text' => 'HTML Editor',
609: 'href' => '',
610: });
611: # breadcrumbs (and tools) will be created
612: # in start_page->bodytag->innerregister
613: } else {
614: # FIXME Where are we?
615: }
616:
617: my $args = {'add_entries' => $token->[2],
618: 'force_register' => 1,};
619: if ($target eq 'web') {
620: $args->{'print_suppress'} = 1;
621: if ($env{'request.use_absolute'}) {
622: $args->{'use_absolute'} = $env{'request.use_absolute'};
623: }
624: }
625: $currentstring =
626: &Apache::loncommon::start_page($Apache::londefdef::title,
627: $Apache::londefdef::head
628: .$extra_head,$args);
629: my $header = '';
630: if ($env{'request.state'} ne 'published' &&
631: $env{'request.state'} ne 'construct') {
632: $header=&Apache::lonmenu::constspaceform();
633: }
634: if ($env{'request.state'} ne 'published') {
635: unless ($env{'form.inhibitmenu'} eq 'yes') {
636: $header.=&edit_controls();
637: }
638: }
639: if ($env{'request.state'} eq 'construct') {
640: unless ($env{'form.inhibitmenu'} eq 'yes') {
641: $currentstring.=&Apache::loncommon::head_subbox(
642: &Apache::loncommon::CSTR_pageheader()
643: .$header);
644: }
645: } elsif ($env{'request.state'} eq 'edit') {
646: $currentstring.=&Apache::loncommon::head_subbox($header);
647: }
648: $currentstring.=&Apache::lonxml::message_location();
649: } elsif ($target eq 'tex') {
650: $currentstring = ''; # '\begin{document}' is in header.
651: }
652:
653: return $currentstring;
654: }
655:
656: sub edit_controls {
657: my ($nochgview) = @_;
658: my $result .= '
659: <form method="post" action="">
660: <div class="LC_edit_problem_header">';
661: unless ($nochgview) {
662: $result .= '
663: <div class="LC_edit_problem_header_row1">'.
664: &Apache::lonxml::renderingoptions().'
665: <input type="submit" name="changeproblemmode" value="'.&mt('Change View').'" />
666: </div>';
667: }
668: $result .= '
669: <div><input type="submit" name="editmode" accesskey="e" value="'.&mt('Edit').'" />';
670: if ($env{'browser.type'} ne 'explorer' || $env{'browser.version'} > 9) {
671: my $uri = $env{'request.uri'};
672: my $daxeurl = '/daxepage'.$uri;
673: $result .= '<input type="button" value="'.&mt('Edit with Daxe').'" '.
674: 'onclick="window.open(\''.$daxeurl.'\',\'_blank\');" />';
675: }
676: if (($env{'request.course.id'}) && ($env{'form.forceedit'})) {
677: my $url=&Apache::lonnet::hreflocation('',$env{'request.filename'});
678: if ($url =~ /\.html?$/i) {
679: my ($cdom,$cnum);
680: if ($env{'request.course.id'}) {
681: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
682: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
683: if ($env{'request.filename'} =~ m{/userfiles/supplemental/default|\d+/}) {
684: if (&Apache::lonnet::is_course_upload($env{'request.filename'},
685: $cnum,$cdom)) {
686: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
687: ['folderpath','title']);
688: }
689: }
690: }
691: my ($symb,$itemtitle,$displayfile,$caller);
692: if ($url =~ m{^/uploaded/$cdom/$cnum/portfolio/syllabus/}) {
693: $itemtitle = &mt('Syllabus');
694: $caller = "/public/$cdom/$cnum/syllabus";
695: } else {
696: $caller = $url;
697: ($symb,$itemtitle,$displayfile) =
698: &Apache::lonxml::get_courseupload_hierarchy($url,
699: $env{'form.folderpath'},
700: $env{'form.title'});
701: }
702: if (($symb ne '') || ($env{'httpref.'.$url} ne '') ||
703: ($url =~ m{^/uploaded/$cdom/$cnum/portfolio/syllabus/})) {
704: $result .= (' ' x 3).
705: &Apache::lonhtmlcommon::dependencies_button()."\n".
706: &Apache::lonhtmlcommon::dependencycheck_js($symb,
707: $itemtitle,$url,$env{'form.folderpath'},$caller)."\n";
708: }
709: }
710: }
711: $result .= '</div>
712: </div>
713: </form>
714: ';
715: return $result;
716: }
717:
718: sub end_body {
719: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
720: my $currentstring = &end_p(); # Close off unclosed <p>
721: if ($target eq 'web' || $target eq 'webgrade') {
722: $currentstring .= &Apache::loncommon::end_page({'discussion' => 1});
723: } elsif ($target eq 'tex') {
724: $currentstring .= '\strut\newline\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\newline\noindent \end{document}';
725: }
726: return $currentstring;
727: }
728:
729: # \begin{center} causes a new paragprah spacing that looks odd inside
730: # of a table cell. Same at the end of a \center but with a slightly
731: # larger space .. hence center_correction and center_end_correction.
732: #
733: sub center_correction { return '\vspace*{-6 mm}'; }
734: sub center_end_correction { return '\vspace*{-7 mm}'; }
735:
736: #-- <center> tag (end tag required)
737: sub start_center {
738: my ($target,$token,$tagstack) = @_;
739: my $currentstring = &end_p(); # Close off any prior para.
740: if ($target eq 'web' || $target eq 'webgrade') {
741: $currentstring .= $token->[4];
742: } elsif ($target eq 'tex') {
743: if (&is_inside_of($tagstack, "table")) {
744: $currentstring .= ¢er_correction();
745: }
746: $currentstring .= '\begin{center}';
747: }
748: return $currentstring;
749: }
750:
751: sub end_center {
752: my ($target,$token,$tagstack) = @_;
753: my $currentstring = '';
754: if ($target eq 'web' || $target eq 'webgrade') {
755: $currentstring = $token->[2];
756: } elsif ($target eq 'tex') {
757: $currentstring = '\end{center}';
758: if (&is_inside_of($tagstack, "table")) {
759: $currentstring .= ¢er_end_correction();
760: }
761: }
762: return $currentstring;
763: }
764:
765: #-- <b> tag (end tag required)
766: # NOTE: In TeX mode disables internal <p>
767: sub start_b {
768: my ($target,$token) = @_;
769: my $currentstring = '';
770: if ($target eq 'web' || $target eq 'webgrade') {
771: $currentstring = $token->[4];
772: } elsif ($target eq 'tex') {
773: &disable_para();
774: $currentstring .= '\textbf{';
775: }
776: return $currentstring;
777: }
778:
779: sub end_b {
780: my ($target,$token) = @_;
781: my $currentstring = '';
782: if ($target eq 'web' || $target eq 'webgrade') {
783: $currentstring = $token->[2];
784: } elsif ($target eq 'tex') {
785: &enable_para();
786: $currentstring = '}';
787: }
788: return $currentstring;
789: }
790:
791: #-- <strong> tag (end tag required)
792: # NOTE: in TeX mode disables internal <p>
793: sub start_strong {
794: my ($target,$token) = @_;
795: my $currentstring = '';
796: if ($target eq 'web' || $target eq 'webgrade') {
797: $currentstring = $token->[4];
798: } elsif ($target eq 'tex') {
799: &disable_para();
800: $currentstring = '\textbf{';
801: }
802: return $currentstring;
803: }
804:
805: sub end_strong {
806: my ($target,$token) = @_;
807: my $currentstring = '';
808: if ($target eq 'web' || $target eq 'webgrade') {
809: $currentstring = $token->[2];
810: } elsif ($target eq 'tex') {
811: &enable_para();
812: $currentstring = '}';
813: }
814: return $currentstring;
815: }
816:
817: #-- <h1> tag (end tag required)
818: sub start_h1 {
819: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
820: my $currentstring = &end_p(); # Close off any prior para.
821: if ($target eq 'web' || $target eq 'webgrade') {
822: $currentstring .= $token->[4];
823: } elsif ($target eq 'tex') {
824: my $pre;
825: my $align=lc(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1));
826: if ($align eq 'center') {
827: $pre='\begin{center}';
828: } elsif ($align eq 'left') {
829: $pre='\rlap{';
830: } elsif ($align eq 'right') {
831: $pre=' \hfill \llap{';
832: }
833: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
834: if (not defined $TeXsize) {$TeXsize="large";}
835: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
836: } elsif ($target eq 'meta') {
837: $currentstring.='<subject>';
838: &start_output($target);
839: }
840: return $currentstring;
841: }
842:
843: sub end_h1 {
844: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
845: my $currentstring = '';
846: if ($target eq 'web' || $target eq 'webgrade') {
847: $currentstring .= $token->[2];
848: } elsif ($target eq 'tex') {
849: my $post='\vskip 0 mm ';
850: my $align=lc(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1));
851: if ($align eq 'center') {
852: $post='\end{center}';
853: } elsif ($align eq 'left') {
854: $post='} \hfill'.'\vskip 0 mm ';
855: } elsif ($align eq 'right') {
856: $post='}'.'\vskip 0 mm ';
857: }
858: $currentstring .= '}}'.$post;
859: } elsif ($target eq 'meta') {
860: &end_output($target);
861: $currentstring='</subject>';
862: }
863: return $currentstring;
864: }
865:
866: #-- <h2> tag
867: sub start_h2 {
868: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
869: my $currentstring = &end_p(); # Close off any prior para.
870: if ($target eq 'web' || $target eq 'webgrade') {
871: $currentstring .= $token->[4];
872: } elsif ($target eq 'tex') {
873: my $pre;
874: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
875: if ($align eq 'center') {
876: $pre='\begin{center}';
877: } elsif ($align eq 'left') {
878: $pre='\rlap{';
879: } elsif ($align eq 'right') {
880: $pre=' \hfill \llap{';
881: }
882: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
883: if (not defined $TeXsize) {$TeXsize="large";}
884: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
885: }
886: return $currentstring;
887: }
888:
889: sub end_h2 {
890: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
891: my $currentstring = '';
892: if ($target eq 'web' || $target eq 'webgrade') {
893: $currentstring .= $token->[2];
894: } elsif ($target eq 'tex') {
895: my $post='\vskip 0 mm ';
896: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
897: if ($align eq 'center') {
898: $post='\end{center}';
899: } elsif ($align eq 'left') {
900: $post='} \hfill'.'\vskip 0 mm ';
901: } elsif ($align eq 'right') {
902: $post='}'.'\vskip 0 mm ';
903: }
904: $currentstring .= '}}'.$post;
905: }
906: return $currentstring;
907: }
908:
909: #-- <h3> tag
910: sub start_h3 {
911: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
912: my $currentstring = &end_p(); # Close off any prior para.
913: if ($target eq 'web' || $target eq 'webgrade') {
914: $currentstring .= $token->[4];
915: } elsif ($target eq 'tex') {
916: my $pre;
917: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
918: if ($align eq 'center') {
919: $pre='\begin{center}';
920: } elsif ($align eq 'left') {
921: $pre='\rlap{';
922: } elsif ($align eq 'right') {
923: $pre=' \hfill \llap{';
924: }
925: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
926: if (not defined $TeXsize) {$TeXsize="large";}
927: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
928: }
929: return $currentstring;
930: }
931:
932: sub end_h3 {
933: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
934: my $currentstring = '';
935: if ($target eq 'web' || $target eq 'webgrade') {
936: $currentstring .= $token->[2];
937: } elsif ($target eq 'tex') {
938: my $post='\vskip 0 mm ';
939: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
940: if ($align eq 'center') {
941: $post='\end{center}';
942: } elsif ($align eq 'left') {
943: $post='} \hfill'.'\vskip 0 mm ';
944: } elsif ($align eq 'right') {
945: $post='}'.'\vskip 0 mm ';
946: }
947: $currentstring .= '}}'.$post;
948: }
949: return $currentstring;
950: }
951:
952: #-- <h4> tag
953: sub start_h4 {
954: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
955: my $currentstring = &end_p(); # Close off any prior para.
956: if ($target eq 'web' || $target eq 'webgrade') {
957: $currentstring .= $token->[4];
958: } elsif ($target eq 'tex') {
959: my $pre;
960: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
961: if ($align eq 'center') {
962: $pre='\begin{center}';
963: } elsif ($align eq 'left') {
964: $pre='\rlap{';
965: } elsif ($align eq 'right') {
966: $pre=' \hfill \llap{';
967: }
968: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
969: if (not defined $TeXsize) {$TeXsize="large";}
970: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
971: }
972: return $currentstring;
973: }
974:
975: sub end_h4 {
976: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
977: my $currentstring = '';
978: if ($target eq 'web' || $target eq 'webgrade') {
979: $currentstring .= $token->[2];
980: } elsif ($target eq 'tex') {
981: my $post='\vskip 0 mm ';
982: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
983: if ($align eq 'center') {
984: $post='\end{center}';
985: } elsif ($align eq 'left') {
986: $post='} \hfill'.'\vskip 0 mm ';
987: } elsif ($align eq 'right') {
988: $post='}'.'\vskip 0 mm ';
989: }
990: $currentstring .= '}}'.$post;
991: }
992: return $currentstring;
993: }
994:
995: #-- <h5> tag
996: sub start_h5 {
997: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
998: my $currentstring = &end_p(); # Close off any prior paras.
999: if ($target eq 'web' || $target eq 'webgrade') {
1000: $currentstring .= $token->[4];
1001: } elsif ($target eq 'tex') {
1002: my $pre;
1003: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1004: if ($align eq 'center') {
1005: $pre='\begin{center}';
1006: } elsif ($align eq 'left') {
1007: $pre='\rlap{';
1008: } elsif ($align eq 'right') {
1009: $pre=' \hfill \llap{';
1010: }
1011: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
1012: if (not defined $TeXsize) {$TeXsize="large";}
1013: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1014: }
1015: return $currentstring;
1016: }
1017:
1018: sub end_h5 {
1019: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1020: my $currentstring = '';
1021: if ($target eq 'web' || $target eq 'webgrade') {
1022: $currentstring .= $token->[2];
1023: } elsif ($target eq 'tex') {
1024: my $post='\vskip 0 mm ';
1025: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1026: if ($align eq 'center') {
1027: $post='\end{center}';
1028: } elsif ($align eq 'left') {
1029: $post='} \hfill'.'\vskip 0 mm ';
1030: } elsif ($align eq 'right') {
1031: $post='}'.'\vskip 0 mm ';
1032: }
1033: $currentstring .= '}}'.$post;
1034: }
1035: return $currentstring;
1036: }
1037:
1038: #-- <h6> tag
1039: sub start_h6 {
1040: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1041: my $currentstring = &end_p(); # Close off any prior paras.
1042: if ($target eq 'web' || $target eq 'webgrade') {
1043: $currentstring .= $token->[4];
1044: } elsif ($target eq 'tex') {
1045: my $pre;
1046: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1047: if ($align eq 'center') {
1048: $pre='\begin{center}';
1049: } elsif ($align eq 'left') {
1050: $pre='\rlap{';
1051: } elsif ($align eq 'right') {
1052: $pre=' \hfill \llap{';
1053: }
1054: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
1055: if (not defined $TeXsize) {$TeXsize="large";}
1056: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1057: }
1058: return $currentstring;
1059: }
1060:
1061: sub end_h6 {
1062: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1063: my $currentstring = '';
1064: if ($target eq 'web' || $target eq 'webgrade') {
1065: $currentstring .= $token->[2];
1066: } elsif ($target eq 'tex') {
1067: my $post='\vskip 0 mm ';
1068: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1069: if ($align eq 'center') {
1070: $post='\end{center}';
1071: } elsif ($align eq 'left') {
1072: $post='} \hfill'.'\vskip 0 mm ';
1073: } elsif ($align eq 'right') {
1074: $post='}'.'\vskip 0 mm ';
1075: }
1076: $currentstring .= '}}'.$post;
1077: }
1078: return $currentstring;
1079: }
1080:
1081: #--- <cite> tag (end tag required)
1082: sub start_cite {
1083: my ($target,$token) = @_;
1084: my $currentstring = '';
1085: if ($target eq 'web' || $target eq 'webgrade') {
1086: $currentstring .= $token->[4];
1087: } elsif ($target eq 'tex') {
1088: $currentstring .= '\textit{';
1089: }
1090: return $currentstring;
1091: }
1092:
1093: sub end_cite {
1094: my ($target,$token) = @_;
1095: my $currentstring = '';
1096: if ($target eq 'web' || $target eq 'webgrade') {
1097: $currentstring .= $token->[2];
1098: } elsif ($target eq 'tex') {
1099: $currentstring .= '}';
1100: }
1101: return $currentstring;
1102: }
1103:
1104: #-- <i> tag (end tag required)
1105: sub start_i {
1106: my ($target,$token) = @_;
1107: my $currentstring = '';
1108: if ($target eq 'web' || $target eq 'webgrade') {
1109: $currentstring .= $token->[4];
1110: } elsif ($target eq 'tex') {
1111: $currentstring .= '\textit{';
1112: }
1113: return $currentstring;
1114: }
1115:
1116: sub end_i {
1117: my ($target,$token) = @_;
1118: my $currentstring = '';
1119: if ($target eq 'web' || $target eq 'webgrade') {
1120: $currentstring .= $token->[2];
1121: } elsif ($target eq 'tex') {
1122: $currentstring .= '}';
1123: }
1124: return $currentstring;
1125: }
1126:
1127: #-- <address> tag (end tag required)
1128: sub start_address {
1129: my ($target,$token) = @_;
1130: my $currentstring = '';
1131: if ($target eq 'web' || $target eq 'webgrade') {
1132: $currentstring .= $token->[4];
1133: } elsif ($target eq 'tex') {
1134: $currentstring .= '\textit{';
1135: }
1136: return $currentstring;
1137: }
1138:
1139: sub end_address {
1140: my ($target,$token) = @_;
1141: my $currentstring = '';
1142: if ($target eq 'web' || $target eq 'webgrade') {
1143: $currentstring .= $token->[2];
1144: } elsif ($target eq 'tex') {
1145: $currentstring .= '}';
1146: }
1147: return $currentstring;
1148: }
1149:
1150: #-- <dfn> tag (end tag required)
1151: sub start_dfn {
1152: my ($target,$token) = @_;
1153: my $currentstring = '';
1154: if ($target eq 'web' || $target eq 'webgrade') {
1155: $currentstring .= $token->[4];
1156: } elsif ($target eq 'tex') {
1157: $currentstring .= '\textit{';
1158: }
1159: return $currentstring;
1160: }
1161:
1162: sub end_dfn {
1163: my ($target,$token) = @_;
1164: my $currentstring = '';
1165: if ($target eq 'web' || $target eq 'webgrade') {
1166: $currentstring .= $token->[2];
1167: } elsif ($target eq 'tex') {
1168: $currentstring .= '}';
1169: }
1170: return $currentstring;
1171: }
1172:
1173: #-- <tt> tag (end tag required)
1174: sub start_tt {
1175: my ($target,$token) = @_;
1176: my $currentstring = '';
1177: if ($target eq 'web' || $target eq 'webgrade') {
1178: $currentstring .= $token->[4];
1179: } elsif ($target eq 'tex') {
1180: $currentstring .= '\texttt{';
1181: }
1182: return $currentstring;
1183: }
1184:
1185: sub end_tt {
1186: my ($target,$token) = @_;
1187: my $currentstring = '';
1188: if ($target eq 'web' || $target eq 'webgrade') {
1189: $currentstring .= $token->[2];
1190: } elsif ($target eq 'tex') {
1191: $currentstring .= '}';
1192: }
1193: return $currentstring;
1194: }
1195:
1196: #-- <kbd> tag (end tag required)
1197: sub start_kbd {
1198: my ($target,$token) = @_;
1199: my $currentstring = '';
1200: if ($target eq 'web' || $target eq 'webgrade') {
1201: $currentstring .= $token->[4];
1202: } elsif ($target eq 'tex') {
1203: $currentstring .= '\texttt{';
1204: }
1205: return $currentstring;
1206: }
1207:
1208: sub end_kbd {
1209: my ($target,$token) = @_;
1210: my $currentstring = '';
1211: if ($target eq 'web' || $target eq 'webgrade') {
1212: $currentstring .= $token->[2];
1213: } elsif ($target eq 'tex') {
1214: $currentstring .= '}';
1215: }
1216: return $currentstring;
1217: }
1218:
1219: #-- <code> tag (end tag required)
1220: sub start_code {
1221: my ($target,$token) = @_;
1222: my $currentstring = '';
1223: if ($target eq 'web' || $target eq 'webgrade') {
1224: $currentstring .= $token->[4];
1225: } elsif ($target eq 'tex') {
1226: $currentstring .= '\texttt{';
1227: }
1228: return $currentstring;
1229: }
1230:
1231: sub end_code {
1232: my ($target,$token) = @_;
1233: my $currentstring = '';
1234: if ($target eq 'web' || $target eq 'webgrade') {
1235: $currentstring .= $token->[2];
1236: } elsif ($target eq 'tex') {
1237: $currentstring .= '}';
1238: }
1239: return $currentstring;
1240: }
1241:
1242: #-- <em> tag (end tag required)
1243: sub start_em {
1244: my ($target,$token) = @_;
1245: my $currentstring = '';
1246: if ($target eq 'web' || $target eq 'webgrade') {
1247: $currentstring .= $token->[4];
1248: } elsif ($target eq 'tex') {
1249: $currentstring .= '\emph{';
1250: }
1251: return $currentstring;
1252: }
1253:
1254: sub end_em {
1255: my ($target,$token) = @_;
1256: my $currentstring = '';
1257: if ($target eq 'web' || $target eq 'webgrade') {
1258: $currentstring .= $token->[2];
1259: } elsif ($target eq 'tex') {
1260: $currentstring .= '}';
1261: }
1262: return $currentstring;
1263: }
1264:
1265: #-- <q> tag (end tag required)
1266: sub start_q {
1267: my ($target,$token) = @_;
1268: my $currentstring = '';
1269: if ($target eq 'web' || $target eq 'webgrade') {
1270: $currentstring .= $token->[4];
1271: } elsif ($target eq 'tex') {
1272: $currentstring .= '\emph{';
1273: }
1274: return $currentstring;
1275: }
1276:
1277: sub end_q {
1278: my ($target,$token) = @_;
1279: my $currentstring = '';
1280: if ($target eq 'web' || $target eq 'webgrade') {
1281: $currentstring .= $token->[2];
1282: } elsif ($target eq 'tex') {
1283: $currentstring .= '}';
1284: }
1285: return $currentstring;
1286: }
1287:
1288: # <p> is a bit strange since it does not require a closing </p>
1289: # However in latex, we must often output closing stuff to end
1290: # environments and {}'s etc. Therefore we do all the work
1291: # of figuring out the ending strings in the start tag processing,
1292: # and provide a mechanism to output the stop text external
1293: # to tag processing.
1294: #
1295: {
1296:
1297: my $closing_string = ''; # String required to close <p>
1298:
1299: # Some tags are <p> fragile meaning that <p> inside of them
1300: # does not work within TeX mode. This is managed via the
1301: # counter below:
1302: #
1303:
1304: my $para_disabled = 0;
1305:
1306: sub disable_para {
1307: $para_disabled++;
1308: }
1309: sub enable_para {
1310: $para_disabled--;
1311: }
1312:
1313:
1314: #-- <p> tag (end tag optional)
1315: #optional attribute - align="center|left|right"
1316: sub start_p {
1317: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1318: my $currentstring = '';
1319: if ($target eq 'web' || $target eq 'webgrade') {
1320: $currentstring .= &end_p(); # close off prior para if in progress.
1321: $currentstring .= $token->[4];
1322: if (! ($currentstring =~ /\//)) {
1323: $closing_string = '</p>'; # Deal correctly with <p /> e.g.
1324: }
1325: } elsif ($target eq 'tex' && !$para_disabled) {
1326:
1327: $currentstring .= &end_p(); # close off prior para if in progress.
1328: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1329: if (!defined $align) {
1330: # check inline CSS
1331: $align = &get_css_property('text-align',$parstack,$safeeval);
1332: }
1333: if ($align eq 'center') {
1334: $currentstring .='\begin{center}\par ';
1335: $closing_string = '\end{center}';
1336: if (&is_inside_of($tagstack, "table")) {
1337: $currentstring = ¢er_correction().$currentstring;
1338: }
1339: } elsif ($align eq 'right') {
1340: $currentstring.="\n".'\begin{flushright}';
1341: # $currentstring.='\makebox['.$env{'form.textwidth'}.']{\hfill\llap{';
1342: $closing_string= '\end{flushright}'."\n";
1343: } elsif ($align eq 'left') {
1344: $currentstring.= "\n".'\begin{flushleft}';
1345: # $currentstring.='\noindent\makebox['.$env{'form.textwidth'}.']{{';
1346: $closing_string = '\end{flushleft}'."\n";
1347: } else {
1348: $currentstring.='\par ';
1349: if (&is_inside_of($tagstack, 'table')) {
1350: $closing_string = '\vskip 0pt'; # Seems to be consistent with <p> in tables.
1351: } else {
1352: $closing_string = '\strut\\\\\strut ';
1353: }
1354: }
1355:
1356: }
1357: return $currentstring;
1358: }
1359: #
1360: # End paragraph processing just requires that we output the
1361: # closing string that was saved and blank it.
1362: sub end_p {
1363: # Note only 'tex' mode uses disable_para and enable_para
1364: # so we don't need to know the target in the check below:
1365:
1366: if (!$para_disabled) {
1367: my $current_string = $closing_string;
1368: $closing_string = ''; # Not in a para anymore.
1369: return $current_string;
1370: } else {
1371: return '';
1372: }
1373:
1374: }
1375: }
1376: #-- <br> tag (end tag forbidden)
1377: sub start_br {
1378: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1379: my $currentstring = '';
1380: if ($target eq 'web' || $target eq 'webgrade') {
1381: $currentstring .= $token->[4];
1382: } elsif ($target eq 'tex') {
1383: my @tempo=@$tagstack;
1384: my $signal=0;
1385: # Not going to factor this to is_inside_of since that would require
1386: # multiple stack traversals.
1387: #
1388: for (my $i=$#tempo;$i>=0;$i--) {
1389: if (($tempo[$i] eq 'b') || ($tempo[$i] eq 'strong') ||
1390: ($tempo[$i] eq 'ol') || ($tempo[$i] eq 'ul')) {
1391: $signal=1;
1392: }
1393: if (($tempo[$i] eq 'td') || ($tempo[$i] eq 'th')) {
1394: $signal = 1;
1395: }
1396: }
1397: if ($signal != 1) {
1398: $currentstring .= '\strut \\\\ \strut ';
1399: }
1400:
1401: }
1402: return $currentstring;
1403: }
1404:
1405: sub end_br {
1406: my ($target,$token) = @_;
1407: my $currentstring = '';
1408: if ($target eq 'web' || $target eq 'webgrade') {
1409: $currentstring .= $token->[2];
1410: }
1411: return $currentstring;
1412: }
1413:
1414: #-- <big> tag (end tag required)
1415: sub start_big {
1416: my ($target,$token) = @_;
1417: my $currentstring = '';
1418: if ($target eq 'web' || $target eq 'webgrade') {
1419: $currentstring .= $token->[4];
1420: } elsif ($target eq 'tex') {
1421: $currentstring .= '{\large ';
1422: }
1423: return $currentstring;
1424: }
1425:
1426: sub end_big {
1427: my ($target,$token) = @_;
1428: my $currentstring = '';
1429: if ($target eq 'web' || $target eq 'webgrade') {
1430: $currentstring .= $token->[2];
1431: } elsif ($target eq 'tex') {
1432: $currentstring .= '}';
1433: }
1434: return $currentstring;
1435: }
1436:
1437: #-- <small> tag (end tag required)
1438: sub start_small {
1439: my ($target,$token) = @_;
1440: my $currentstring = '';
1441: if ($target eq 'web' || $target eq 'webgrade') {
1442: $currentstring .= $token->[4];
1443: } elsif ($target eq 'tex') {
1444: $currentstring .= '{\footnotesize ';
1445: }
1446: return $currentstring;
1447: }
1448:
1449: sub end_small {
1450: my ($target,$token) = @_;
1451: my $currentstring = '';
1452: if ($target eq 'web' || $target eq 'webgrade') {
1453: $currentstring .= $token->[2];
1454: } elsif ($target eq 'tex') {
1455: $currentstring .= '}';
1456: }
1457: return $currentstring;
1458: }
1459:
1460: #-- <basefont> tag (end tag forbidden)
1461: sub start_basefont {
1462: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1463: my $currentstring = '';
1464: if ($target eq 'web' || $target eq 'webgrade') {
1465: $currentstring = $token->[4];
1466: } elsif ($target eq 'tex') {
1467: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1468: if (defined $basesize) {
1469: $currentstring = '{\\'.$basesize.' ';
1470: }
1471: }
1472: return $currentstring;
1473: }
1474:
1475: sub end_basefont {
1476: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1477: my $currentstring = '';
1478: if ($target eq 'web' || $target eq 'webgrade') {
1479: $currentstring = $token->[4];
1480: } elsif ($target eq 'tex') {
1481: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1482: if (defined $basesize) {
1483: $currentstring = '}';
1484: }
1485: }
1486: return $currentstring;
1487: }
1488:
1489: #-- <font> tag (end tag required)
1490: sub start_font {
1491: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1492: my $currentstring = '';
1493: if ($target eq 'web' || $target eq 'webgrade') {
1494: my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
1495: $currentstring = $token->[4];
1496: } elsif ($target eq 'tex') {
1497: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1498: if (defined $fontsize) {
1499: $currentstring = '{\\'.$fontsize.' ';
1500: }
1501: }
1502: return $currentstring;
1503: }
1504:
1505: sub end_font {
1506: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1507: my $currentstring = '';
1508: if ($target eq 'web' || $target eq 'webgrade') {
1509: $currentstring = $token->[2];
1510: } elsif ($target eq 'tex') {
1511: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1512: if (defined $fontsize) {
1513: $currentstring = '}';
1514: }
1515: }
1516: return $currentstring;
1517: }
1518:
1519: #-- <strike> tag (end tag required)
1520: sub start_strike {
1521: my ($target,$token) = @_;
1522: my $currentstring = '';
1523: if ($target eq 'web' || $target eq 'webgrade') {
1524: $currentstring .= $token->[4];
1525: } elsif ($target eq 'tex') {
1526: &Apache::lonxml::startredirection();
1527: }
1528: return $currentstring;
1529: }
1530:
1531: sub end_strike {
1532: my ($target,$token) = @_;
1533: my $currentstring = '';
1534: if ($target eq 'web' || $target eq 'webgrade') {
1535: $currentstring .= $token->[2];
1536: } elsif ($target eq 'tex') {
1537: $currentstring=&Apache::lonxml::endredirection();
1538: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1539: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1540: $currentstring=~s/(\S)\s*$/$1\}/;
1541: }
1542: return $currentstring;
1543: }
1544:
1545: #-- <s> tag (end tag required)
1546: sub start_s {
1547: my ($target,$token) = @_;
1548: my $currentstring = '';
1549: if ($target eq 'web' || $target eq 'webgrade') {
1550: $currentstring .= $token->[4];
1551: } elsif ($target eq 'tex') {
1552: &Apache::lonxml::startredirection();
1553: }
1554: return $currentstring;
1555: }
1556:
1557: sub end_s {
1558: my ($target,$token) = @_;
1559: my $currentstring = '';
1560: if ($target eq 'web' || $target eq 'webgrade') {
1561: $currentstring .= $token->[2];
1562: } elsif ($target eq 'tex') {
1563: $currentstring=&Apache::lonxml::endredirection();
1564: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1565: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1566: $currentstring=~s/(\S)\s*$/$1\}/;
1567: }
1568: return $currentstring;
1569: }
1570:
1571: #-- <sub> tag (end tag required)
1572: sub start_sub {
1573: my ($target,$token) = @_;
1574: my $currentstring = '';
1575: if ($target eq 'web' || $target eq 'webgrade') {
1576: $currentstring .= $token->[4];
1577: } elsif ($target eq 'tex') {
1578: $currentstring .= '\raisebox{-\smallskipamount}{\scriptsize{';
1579: }
1580: return $currentstring;
1581: }
1582:
1583: sub end_sub {
1584: my ($target,$token) = @_;
1585: my $currentstring = '';
1586: if ($target eq 'web' || $target eq 'webgrade') {
1587: $currentstring .= $token->[2];
1588: } elsif ($target eq 'tex') {
1589: $currentstring .= '}}';
1590: }
1591: return $currentstring;
1592: }
1593:
1594: #-- <sup> tag (end tag required)
1595: sub start_sup {
1596: my ($target,$token) = @_;
1597: my $currentstring = '';
1598: if ($target eq 'web' || $target eq 'webgrade') {
1599: $currentstring .= $token->[4];
1600: } elsif ($target eq 'tex') {
1601: $currentstring .= '\raisebox{\smallskipamount}{\scriptsize{';
1602: }
1603: return $currentstring;
1604: }
1605:
1606: sub end_sup {
1607: my ($target,$token) = @_;
1608: my $currentstring = '';
1609: if ($target eq 'web' || $target eq 'webgrade') {
1610: $currentstring .= $token->[2];
1611: } elsif ($target eq 'tex') {
1612: $currentstring .= '}}';
1613: }
1614: return $currentstring;
1615: }
1616:
1617: #-- <hr> tag (end tag forbidden)
1618: sub start_hr {
1619: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1620: my $currentstring = &end_p(); # End enclosing para.
1621: if ($target eq 'web' || $target eq 'webgrade') {
1622: $currentstring .= $token->[4];
1623: } elsif ($target eq 'tex') {
1624:
1625: # <hr /> can't be inside of <sup><sub> thank you LaTeX.
1626: #
1627: my $restart_sub = 0;
1628: my $restart_sup = 0;
1629:
1630: # Since <sub> and <sup> are simple tags it's ok to turn off/on
1631: # using the start_ stop_ functions.. those tags only care about
1632: # $target.
1633:
1634: if (&is_inside_of($tagstack, "sub")) {
1635: $restart_sub = 1;
1636: $currentstring .= &end_sub($target, $token, $tagstack,
1637: $parstack, $parser, $safeeval);
1638: }
1639: if (&is_inside_of($tagstack, "sup")) {
1640: $restart_sup = 1;
1641: $currentstring .= &end_sup($target, $token, $tagstack,
1642: $parstack, $parser, $safeeval);
1643: }
1644:
1645: my $LaTeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1646: if (defined $LaTeXwidth) {
1647: if ($LaTeXwidth=~/^%/) {
1648: substr($LaTeXwidth,0,1)='';
1649: $LaTeXwidth=($LaTeXwidth/100).'\textwidth';
1650: }
1651: } else {
1652: $LaTeXwidth ='0.9\textwidth';
1653: }
1654: my ($pre,$post);
1655: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1656: if (($align eq 'center') || (not defined $align)) {
1657: $pre=''; $post='';
1658: } elsif ($align eq 'left') {
1659: $pre='\rlap{'; $post='} \hfill';
1660: } elsif ($align eq 'right') {
1661: $pre=' \hfill \llap{'; $post='}';
1662: }
1663: $currentstring .= ' \vskip 0 mm \noindent\makebox['.$LaTeXwidth.']{'.$pre.'\makebox['.
1664: $LaTeXwidth.'][b]{\hrulefill}'.$post.'}\vskip 0 mm ';
1665: # Turn stuff back on that we can't be inside of.
1666:
1667: if ($restart_sub) {
1668: $currentstring .= &start_sub($target, $token, $tagstack,
1669: $parstack, $parser, $safeeval);
1670: }
1671: if ($restart_sup) {
1672: $currentstring .= &start_sup($target, $token, $tagstack,
1673: $parstack, $parser, $safeeval);
1674: }
1675: }
1676: return $currentstring;
1677: }
1678:
1679: sub end_hr {
1680: my ($target,$token) = @_;
1681: my $currentstring = '';
1682: if ($target eq 'web' || $target eq 'webgrade') {
1683: $currentstring .= $token->[2];
1684: }
1685: return $currentstring;
1686: }
1687:
1688: #-- <div> tag (end tag required)
1689: {
1690:
1691: # Since div can be nested, the stack below is used
1692: # in 'tex' mode to store the ending strings
1693: # for the div stack.
1694:
1695: my @div_end_stack;
1696:
1697: sub start_div {
1698: my ($target,$token, $tagstack, $parstack, $parser, $safeeval) = @_;
1699: my $currentstring = &end_p(); # Close enclosing para.
1700: if ($target eq 'web' || $target eq 'webgrade') {
1701: $currentstring .= $token->[4];
1702: }
1703: if ($target eq 'tex') {
1704: # 4 possible alignments: left, right, center, and -missing-.
1705: # If inside a table row, we must let the table logic
1706: # do the alignment, however.
1707: #
1708:
1709: my $endstring = '';
1710:
1711: my $align = lc(&Apache::lonxml::get_param('align', $parstack,
1712: $safeeval, undef, 1));
1713: if ($align eq 'center') {
1714: $currentstring .= '\begin{center}';
1715: $endstring = '\end{center}';
1716: if (&is_inside_of($tagstack, "table")) {
1717: $currentstring = ¢er_correction().$currentstring;
1718: $endstring .= ¢er_end_correction();
1719: }
1720: }
1721: elsif ($align eq 'right') {
1722: $currentstring .= '\begin{flushright}';
1723: $endstring .= '\end{flushright}';
1724: } elsif ($align eq 'left') {
1725: $currentstring .= '\begin{flushleft}';
1726: $endstring = '\end{flushleft}';
1727: } else {
1728:
1729: }
1730: $currentstring .= "\n"; # For human readability.
1731: $endstring = "\n$endstring\n"; # For human readability
1732: push(@div_end_stack, $endstring);
1733: }
1734: return $currentstring;
1735: }
1736:
1737: sub end_div {
1738: my ($target,$token) = @_;
1739: my $currentstring = '';
1740: if ($target eq 'web' || $target eq 'webgrade') {
1741: $currentstring .= $token->[2];
1742: }
1743: if ($target eq 'tex') {
1744: my $endstring = pop @div_end_stack;
1745: $currentstring .= $endstring;
1746: }
1747: return $currentstring;
1748: }
1749: }
1750:
1751: #-- <a> tag (end tag required)
1752: sub start_a {
1753: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1754: my $currentstring = '';
1755: if ($target eq 'web' || $target eq 'webgrade') {
1756: my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
1757: undef,1);
1758: $currentstring=&Apache::lonenc::encrypt_ref($token,{'href'=>$href});
1759: if ($href =~ /\S/) {
1760: if ($href !~ m{^https?://}) {
1761: my $url=&Apache::lonnet::hreflocation('',$env{'request.filename'});
1762: my $linkurl;
1763: if ($href =~ m{^/uploaded/}) {
1764: $linkurl = $href;
1765: } elsif ($href =~ m{^[^/]}) {
1766: my $path = $url;
1767: $path =~ s{[^/]*$}{};
1768: $linkurl = $path.$href;
1769: }
1770: if ($linkurl =~ m{^/uploaded/}) {
1771: if (!&Apache::lonnet::allowed('bre',$linkurl)) {
1772: if (&Apache::lonnet::is_on_map($url)) {
1773: &Apache::lonxml::extlink($linkurl);
1774: } elsif ($env{'request.course.id'}) {
1775: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
1776: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
1777: if ($linkurl =~ m{^([^/]|/uploaded/$cdom/$cnum/(docs|supplemental)/)}) {
1778: my $cleanhref = &clean_docs_httpref($linkurl,$url,$cdom,$cnum);
1779: if ($cleanhref) {
1780: &Apache::lonxml::extlink($cleanhref);
1781: }
1782: }
1783: }
1784: }
1785: }
1786: }
1787: }
1788: }
1789: return $currentstring;
1790: }
1791:
1792: sub end_a {
1793: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1794: my $currentstring = '';
1795: if ($target eq 'web' || $target eq 'webgrade') {
1796: $currentstring .= $token->[2];
1797: }
1798: if ($target eq 'tex') {
1799: my $href =
1800: &Apache::lonxml::get_param('href',$parstack,$safeeval,undef,1);
1801: my $name =
1802: &Apache::lonxml::get_param('name',$parstack,$safeeval,undef,1);
1803: my $uriprint =
1804: &Apache::lonxml::get_param('uriprint',$parstack,$safeeval,undef,1);
1805: my $anchorprint =
1806: &Apache::lonxml::get_param('anchorprint',$parstack,$safeeval,undef,1);
1807: if (($href =~ /\S/) && ($uriprint=~/^on|uriprint|yes|1$/i)) {
1808: $href =~ s/([^\\])%/$1\\\%/g;
1809: # Substitute special symbols... and allow line breaks at each /
1810: #
1811: $href = &Apache::lonxml::latex_special_symbols($href);
1812: $href =~ s/\//\/\\-/g; # Map / to /\- to allow hyphenation.
1813: $currentstring .= ' ({\tt URI:'.$href.'})';
1814: } elsif (($name =~ /\S/) && ($anchorprint=~/^on|anchorprint|yes|1$/i)) {
1815: $currentstring .= ' ({\tt Anchor:'.&Apache::lonxml::latex_special_symbols($name).'})';
1816: } else {
1817: $currentstring.='';
1818: }
1819: }
1820: return $currentstring;
1821: }
1822:
1823: #-- <li> tag (end tag optional)
1824: sub start_li {
1825: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1826: my $currentstring = '';
1827: if ($target eq 'web' || $target eq 'webgrade') {
1828: $currentstring = $token->[4];
1829: } elsif ($target eq 'tex') {
1830: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1831: my $value=&Apache::lonxml::get_param('value',$parstack,$safeeval,undef,0);
1832: #FIXME need to support types i and I
1833: if ($type=~/disc/) {
1834: $currentstring .= ' \item[$\bullet$] ';
1835: } elsif ($type=~/circle/) {
1836: $currentstring .= ' \item[$\circ$] ';
1837: } elsif ($type=~/square/) {
1838: $currentstring .= ' \item[$\diamond$] ';
1839: } elsif ($type eq '1') {
1840: $currentstring .= ' \item['.($Apache::londefdef::list_index+1).'.]';
1841: } elsif ($type eq 'A') {
1842: $currentstring .= ' \item['.('A'..'Z')[$Apache::londefdef::list_index].'.]';
1843: } elsif ($type eq 'a') {
1844: $currentstring .= ' \item['.('a'..'z')[$Apache::londefdef::list_index].'.]';
1845: } elsif ($value ne '') {
1846: $currentstring .= ' \item['.$value.'] ';
1847: } else {
1848: $currentstring .= ' \item ';
1849: }
1850: $Apache::londefdef::list_index++;
1851: }
1852: return $currentstring;
1853: }
1854:
1855: sub end_li {
1856: my ($target,$token) = @_;
1857: my $currentstring = &end_p(); # In case there's a <p> in the <li>
1858: if ($target eq 'web' || $target eq 'webgrade') {
1859: $currentstring .= $token->[2];
1860: }
1861: return $currentstring;
1862: }
1863:
1864: #-- <u> tag (end tag required)
1865: sub start_u {
1866: my ($target,$token) = @_;
1867: my $currentstring = '';
1868: if ($target eq 'web' || $target eq 'webgrade') {
1869: $currentstring .= $token->[4];
1870: } elsif ($target eq 'tex') {
1871: &Apache::lonxml::startredirection();
1872: }
1873: return $currentstring;
1874: }
1875:
1876: sub end_u {
1877: my ($target,$token) = @_;
1878: my $currentstring = '';
1879: if ($target eq 'web' || $target eq 'webgrade') {
1880: $currentstring .= $token->[2];
1881: } elsif ($target eq 'tex') {
1882: $currentstring=&Apache::lonxml::endredirection();
1883: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1884: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1885: $currentstring=~s/(\S)\s*$/$1\}/;
1886: }
1887: return $currentstring;
1888: }
1889:
1890: #-- <ul> tag (end tag required)
1891: sub start_ul {
1892: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1893: my $currentstring = &end_p(); # Close off enclosing list.
1894: if ($target eq 'web' || $target eq 'webgrade') {
1895: $currentstring .= $token->[4];
1896: } elsif ($target eq 'tex') {
1897: my $TeXtype=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1898: $Apache::londefdef::list_index=0;
1899: if ($TeXtype eq 'disc') {
1900: $currentstring .= '\renewcommand{\labelitemi}{$\bullet$}'.
1901: '\renewcommand{\labelitemii}{$\bullet$}'.
1902: '\renewcommand{\labelitemiii}{$\bullet$}'.
1903: '\renewcommand{\labelitemiv}{$\bullet$}';
1904: } elsif ($TeXtype eq 'circle') {
1905: $currentstring .= '\renewcommand{\labelitemi}{$\circ$}'.
1906: '\renewcommand{\labelitemii}{$\circ$}'.
1907: '\renewcommand{\labelitemiii}{$\circ$}'.
1908: '\renewcommand{\labelitemiv}{$\circ$}';
1909: } elsif ($TeXtype eq 'square') {
1910: $currentstring .= '\renewcommand{\labelitemi}{$\diamond$}'.
1911: '\renewcommand{\labelitemii}{$\diamond$}'.
1912: '\renewcommand{\labelitemiii}{$\diamond$}'.
1913: '\renewcommand{\labelitemiv}{$\diamond$}';
1914: }
1915: $currentstring .= '\strut \begin{itemize}';
1916: }
1917: return $currentstring;
1918: }
1919:
1920: sub end_ul {
1921: my ($target,$token) = @_;
1922: my $currentstring = '';
1923: if ($target eq 'web' || $target eq 'webgrade') {
1924: $currentstring = $token->[2];
1925: } elsif ($target eq 'tex') {
1926: $currentstring = '\end{itemize} \renewcommand{\labelitemi}{$\bullet$}'.
1927: '\renewcommand{\labelitemii}{$\bullet$}'.
1928: '\renewcommand{\labelitemiii}{$\bullet$}'.
1929: '\renewcommand{\labelitemiv}{$\bullet$}\strut ';
1930: }
1931: return $currentstring;
1932: }
1933:
1934: #-- <menu> tag (end tag required)
1935: sub start_menu {
1936: my ($target,$token) = @_;
1937: my $currentstring = '';
1938: if ($target eq 'web' || $target eq 'webgrade') {
1939: $currentstring = $token->[4];
1940: } elsif ($target eq 'tex') {
1941: $currentstring = " \\begin{itemize} ";
1942: }
1943: return $currentstring;
1944: }
1945:
1946: sub end_menu {
1947: my ($target,$token) = @_;
1948: my $currentstring = '';
1949: if ($target eq 'web' || $target eq 'webgrade') {
1950: $currentstring = $token->[2];
1951: } elsif ($target eq 'tex') {
1952: $currentstring = " \\end{itemize}";
1953: }
1954: return $currentstring;
1955: }
1956:
1957: #-- <dir> tag (end tag required)
1958: sub start_dir {
1959: my ($target,$token) = @_;
1960: my $currentstring = &end_p(); # In case there's a <p> prior to the list.
1961: if ($target eq 'web' || $target eq 'webgrade') {
1962: $currentstring .= $token->[4];
1963: } elsif ($target eq 'tex') {
1964: $currentstring .= " \\begin{itemize} ";
1965: }
1966: return $currentstring;
1967: }
1968:
1969: sub end_dir {
1970: my ($target,$token) = @_;
1971: my $currentstring = '';
1972: if ($target eq 'web' || $target eq 'webgrade') {
1973: $currentstring = $token->[2];
1974: } elsif ($target eq 'tex') {
1975: $currentstring = " \\end{itemize}";
1976: }
1977: return $currentstring;
1978: }
1979:
1980: #-- <ol> tag (end tag required)
1981: sub start_ol {
1982: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1983: my $currentstring = &end_p(); # In case there's a <p> prior to the list.
1984: if ($target eq 'web' || $target eq 'webgrade') {
1985: $currentstring .= $token->[4];
1986: } elsif ($target eq 'tex') {
1987: $Apache::londefdef::list_index=0;
1988: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1989: if ($type eq '1') {
1990: $currentstring .= '\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1991: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1992: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1993: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}';
1994: } elsif ($type eq 'A') {
1995: $currentstring .= '\renewcommand{\labelenumi}{\Alph{enumi}.}'.
1996: '\renewcommand{\labelenumii}{\Alph{enumii}.}'.
1997: '\renewcommand{\labelenumiii}{\Alph{enumiii}.}'.
1998: '\renewcommand{\labelenumiv}{\Alph{enumiv}.}';
1999: } elsif ($type eq 'a') {
2000: $currentstring .= '\renewcommand{\labelenumi}{\alph{enumi}.}'.
2001: '\renewcommand{\labelenumii}{\alph{enumii}.}'.
2002: '\renewcommand{\labelenumiii}{\alph{enumiii}.}'.
2003: '\renewcommand{\labelenumiv}{\alph{enumiv}.}';
2004: } elsif ($type eq 'i') {
2005: $currentstring .= '\renewcommand{\labelenumi}{\roman{enumi}.}'.
2006: '\renewcommand{\labelenumii}{\roman{enumii}.}'.
2007: '\renewcommand{\labelenumiii}{\roman{enumiii}.}'.
2008: '\renewcommand{\labelenumiv}{\roman{enumiv}.}';
2009: } elsif ($type eq 'I') {
2010: $currentstring .= '\renewcommand{\labelenumi}{\Roman{enumi}.}'.
2011: '\renewcommand{\labelenumii}{\Roman{enumii}.}'.
2012: '\renewcommand{\labelenumiii}{\Roman{enumiii}.}'.
2013: '\renewcommand{\labelenumiv}{\Roman{enumiv}.}';
2014: }
2015: $currentstring .= '\strut \begin{enumerate}';
2016: }
2017: return $currentstring;
2018: }
2019:
2020: sub end_ol {
2021: my ($target,$token) = @_;
2022: my $currentstring = '';
2023: if ($target eq 'web' || $target eq 'webgrade') {
2024: $currentstring = $token->[2];
2025: } elsif ($target eq 'tex') {
2026: $currentstring = '\end{enumerate}\renewcommand{\labelenumi}{\arabic{enumi}.}'.
2027: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
2028: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
2029: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}\strut ';
2030: }
2031: return $currentstring;
2032: }
2033:
2034: #-- <dl> tag (end tag required)
2035: sub start_dl {
2036: my ($target,$token) = @_;
2037: my $currentstring = &end_p(); # In case there's a <p> unclosed prior to the list.
2038: if ($target eq 'web' || $target eq 'webgrade') {
2039: $currentstring .= $token->[4];
2040: } elsif ($target eq 'tex') {
2041: $currentstring .= '\begin{description}';
2042: $Apache::londefdef::DL++;
2043: push(@Apache::londefdef::description,[]);
2044: $Apache::londefdef::DD[$Apache::londefdef::DL]=0;
2045: $Apache::londefdef::DT[$Apache::londefdef::DL]=0;
2046: $Apache::londefdef::seenDT[$Apache::londefdef::DL]=0;
2047: }
2048: return $currentstring;
2049: }
2050:
2051: sub end_dl {
2052: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2053: my $currentstring = '';
2054: if ($target eq 'web' || $target eq 'webgrade') {
2055: $currentstring = $token->[2];
2056: } elsif ($target eq 'tex') {
2057: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
2058: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
2059: foreach my $element (@{$Apache::londefdef::description[-1]}) {
2060: $currentstring.=' '.$element.' ';
2061: }
2062: pop(@Apache::londefdef::description);
2063: $currentstring.='\end{description}';
2064: delete($Apache::londefdef::DD[$Apache::londefdef::DL]);
2065: delete($Apache::londefdef::DT[$Apache::londefdef::DL]);
2066: delete($Apache::londefdef::seenDT[$Apache::londefdef::DL]);
2067: $Apache::londefdef::DL--;
2068: }
2069: return $currentstring;
2070: }
2071:
2072: #-- <dt> tag (end tag optional)
2073: sub start_dt {
2074: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2075: my $currentstring='';
2076: if ($target eq 'web' || $target eq 'webgrade') {
2077: $currentstring = $token->[4];
2078: } elsif ($target eq 'tex') {
2079: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
2080: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
2081: &Apache::lonxml::startredirection();
2082: $Apache::londefdef::DT[-1]++;
2083: $Apache::londefdef::seenDT[-1]=1;
2084: }
2085: return $currentstring;
2086: }
2087:
2088: sub end_dt {
2089: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2090: my $currentstring = '';
2091: if ($target eq 'web' || $target eq 'webgrade') {
2092: $currentstring = $token->[2];
2093: } elsif ($target eq 'tex') {
2094: if ($Apache::londefdef::DT[-1]) {
2095: my $data=&item_cleanup();
2096: push(@{$Apache::londefdef::description[-1]},'\item['.$data.'] \strut \vskip 0mm');
2097: $Apache::londefdef::DT[-1]--;
2098: }
2099: }
2100: return $currentstring;
2101: }
2102:
2103: sub item_cleanup {
2104: my $item=&Apache::lonxml::endredirection();
2105: $item=~s/\\begin\{center}//g;
2106: $item=~s/\\end\{center}//g;
2107: return $item;
2108: }
2109:
2110: #-- <dd> tag (end tag optional)
2111: sub start_dd {
2112: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2113: my $currentstring = '';
2114: if ($target eq 'web' || $target eq 'webgrade') {
2115: $currentstring = $token->[4];
2116: } elsif ($target eq 'tex') {
2117: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
2118: if ($Apache::londefdef::DD[-1]) { &end_dd(@_);}
2119: if (!$Apache::londefdef::seenDT[-1]) {
2120: push(@{$Apache::londefdef::description[-1]},'\item[\strut] \strut \vskip 0mm ');
2121: }
2122: push(@{$Apache::londefdef::description[-1]},'');
2123: $Apache::londefdef::description[-1]->[-1].=' \strut ';
2124: $Apache::londefdef::DD[-1]++;
2125: &Apache::lonxml::startredirection();
2126: }
2127: return $currentstring;
2128: }
2129:
2130: sub end_dd {
2131: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2132: my $currentstring = '';
2133: if ($target eq 'web' || $target eq 'webgrade') {
2134: $currentstring = $token->[2];
2135: } elsif ($target eq 'tex') {
2136: $Apache::londefdef::description[-1]->[-1].=
2137: &Apache::lonxml::endredirection().' \vskip 0mm ';
2138: $Apache::londefdef::DD[-1]--;
2139: }
2140: return $currentstring;
2141: }
2142:
2143: #-- <table> tag (end tag required)
2144: # <table> also ends any prior <p> that is not closed.
2145: # but, unless I allow <p>'s to nest, that's the
2146: # only way I could think of to allow <p> in
2147: # <tr> <th> bodies
2148: #
2149: #list of supported attributes: border,width,TeXwidth,TeXtheme
2150: # align
2151: sub start_table {
2152: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2153: my $textwidth = '';
2154: my $currentstring = &end_p();
2155: if ($target eq 'web' || $target eq 'webgrade') {
2156: $currentstring .= $token->[4];
2157: } elsif ($target eq 'tex') {
2158: &disable_para(); # Can't have paras in a table.
2159:
2160: # Get the parameters that we can do something about:
2161:
2162: my $border = &Apache::lonxml::get_param('border', $parstack, $safeeval, undef, 0);
2163: my $width = &Apache::lonxml::get_param('TeXwidth', $parstack, $safeeval, undef, 0);
2164: my $theme = &Apache::lonxml::get_param('TeXtheme', $parstack, $safeeval, undef, 0);
2165: my $align = &Apache::lonxml::get_param('align', $parstack, $safeeval, undef, 0);
2166: my $cell_border = &Apache::lonxml::get_param('rules', $parstack, $safeeval, undef, 0);
2167:
2168: # The only thing that needs any figuring out is the width.. and then only if it is
2169: # a percent. If not it's assumed to be some valid TeX measurement unit e.g. 3.0cm
2170: #
2171:
2172: my $table = new Apache::lontable();
2173: if ((defined $border) && ($border > 0)) {
2174: # &Apache::lonnet::logthis("Turning on table borders: $border");
2175: $table->table_border(1);
2176: if (!defined $cell_border) {
2177: $table->cell_border(1); # Default for rules is all if rules not defined.
2178: }
2179: }
2180:
2181: if ((defined $cell_border)) {
2182: if ($cell_border eq 'all') {
2183: $table->cell_border(1);
2184: } elsif ($cell_border eq 'rows') {
2185: $table->cell_border(2);
2186: } elsif ($cell_border eq 'cols') {
2187: $table->cell_border(3);
2188: } elsif($cell_border eq 'groups') {
2189: $table->cell_border(4);
2190: } else {
2191: $table->cell_border(0);
2192: }
2193: }
2194: if (defined $theme) {
2195: $table->theme($theme);
2196: }
2197: if (defined $align) {
2198: $table->alignment($align);
2199: }
2200:
2201: # Missing width is most of page width
2202:
2203: if (!(defined $width)) {
2204: $width = '70%';
2205: }
2206:
2207: # If a percentage, need to calculate what this means in terms of
2208: # page width:
2209:
2210: if ($width =~ /%$/) {
2211: my $textwidth = &recalc($env{'form.textwidth'}); # Page width in mm.
2212: $width =~ s/%//;
2213: $width = $width * $textwidth / 100.0;
2214: $width .= " mm";
2215: $table->width($width);
2216: }
2217:
2218: push(@Apache::londefdef::table, $table);
2219: $currentstring.=' \keephidden{NEW TABLE ENTRY}';
2220:
2221: }
2222: return $currentstring;
2223: }
2224:
2225: sub end_table {
2226: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2227: my $currentstring = '';
2228: if ($target eq 'web' || $target eq 'webgrade') {
2229: $currentstring = $token->[2];
2230: } elsif ($target eq 'tex') {
2231:
2232:
2233: my $table = pop(@Apache::londefdef::table);
2234: my $t = $table->generate();
2235: # &Apache::lonnet::logthis("Generating string");
2236: $currentstring = $t->generate_string();
2237: # &Apache::lonnet::logthis("Generated: $currentstring");
2238: &enable_para();
2239:
2240: }
2241: return $currentstring;
2242: }
2243:
2244: #-- <tr> tag (end tag optional)
2245: sub start_tr {
2246: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2247: my $currentstring = '';
2248: if ($target eq 'web' || $target eq 'webgrade') {
2249: $currentstring = $token->[4];
2250: } elsif ($target eq 'tex') {
2251:
2252: my $align = &Apache::lonxml::get_param('align', $parstack, $safeeval, undef, 1);
2253: $Apache::londefdef::table[-1]->start_row();
2254:
2255: if ($align ne '') {
2256: $Apache::londefdef::table[-1]->configure_row({default_halign => $align});
2257: }
2258:
2259: #---------------------------------------------------------------
2260: # Old table code.
2261: #---------------------------------------------------------------
2262:
2263: if (0) {
2264: $Apache::londefdef::table[-1]{'row_number'}++;
2265: my $alignchar=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
2266: if ($alignchar ne '') {
2267: push @ {$Apache::londefdef::table[-1]{'rows'} },substr($alignchar,0,1);
2268: } else {
2269: push @ {$Apache::londefdef::table[-1]{'rows'} }, 'l';
2270: }
2271: push ( @{ $Apache::londefdef::table[-1]{'rowdata'} }, $Apache::londefdef::table[-1]{'hinc'});
2272: #
2273: # Need to save the number of table columns to preserve the max # columns.
2274: #
2275: $Apache::londefdef::table[-1]{'prior_columns'} = $Apache::londefdef::table[-1]{'counter_columns'};
2276: $Apache::londefdef::table[-1]{'counter_columns'} = -1;
2277: push @ {$Apache::londefdef::table[-1]{'TeXlen'}}, [];
2278: push @ {$Apache::londefdef::table[-1]{'objectlen'}}, [];
2279: push @ {$Apache::londefdef::table[-1]{'minlen'}}, [];
2280: push @ {$Apache::londefdef::table[-1]{'maxlen'}}, [];
2281: push @ {$Apache::londefdef::table[-1]{'content'}}, [];
2282: }
2283: }
2284: return $currentstring;
2285: }
2286:
2287: sub end_tr {
2288: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2289: my $currentstring = &end_p(); # Close any pending <p> in the row.
2290: if ($target eq 'web' || $target eq 'webgrade') {
2291: $currentstring .= $token->[2];
2292: } elsif ($target eq 'tex') {
2293:
2294: # In case the user is missing a </td> or </th> tag:
2295:
2296: if ($Apache::londefdef::TD_redirection) {
2297: &end_td_tex($parstack,$parser,$safeeval);
2298: }
2299: $Apache::londefdef::table[-1]->end_row();
2300:
2301: #-----------------------------------------------
2302: # Old table code
2303: #-----------------------------------------------
2304:
2305: if (0) {
2306: if ($Apache::londefdef::TD_redirection) {
2307: &end_td_tex($parstack,$parser,$safeeval);
2308: }
2309: # Counter columns must be the maximum number of columns seen
2310: # in the table so far so:
2311: if ($Apache::londefdef::table[-1]{'prior_columns'} > $Apache::londefdef::table[-1]{'counter_columns'}) {
2312: $Apache::londefdef::table[-1]{'counter_columns'} = $Apache::londefdef::table[-1]{'prior_columns'};
2313: }
2314: }
2315:
2316:
2317: }
2318: return $currentstring;
2319: }
2320:
2321: #-- <td> tag (end tag optional)
2322: sub start_td {
2323: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2324: my $currentstring = '';
2325: if ($target eq 'web' || $target eq 'webgrade') {
2326: $currentstring = $token->[4];
2327: } elsif ($target eq 'tex') {
2328: $Apache::londefdef::TD_redirection = 1;
2329: &tag_check('tr','td',$tagstack,$parstack,$parser,$safeeval);
2330: }
2331: return $currentstring;
2332: }
2333:
2334: sub tag_check {
2335: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
2336: my @ar=@$parstack;
2337: for (my $i=$#ar-1;$i>=0;$i--) {
2338: if (lc($$tagstack[$i]) eq $good_tag) {
2339: &start_td_tex($parstack,$parser,$safeeval);
2340: last;
2341: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2342: splice @ar, $i+1;
2343: &end_td_tex(\@ar,$parser,$safeeval);
2344: &start_td_tex($parstack,$parser,$safeeval);
2345: last;
2346: }
2347: }
2348: return '';
2349: }
2350:
2351: #
2352: # Factor out cell configuration hash generation:
2353: #
2354:
2355: sub cell_config_hash {
2356: my ($align, $rowspan, $colspan, $width) = @_;
2357: if ($rowspan ne '') {
2358: $rowspan =~ s/^\s+|\s+$//g;
2359: }
2360: if ($colspan ne '') {
2361: $colspan =~ s/^\s+|\s+$//g;
2362: }
2363: my %config;
2364: if ($align ne '') {
2365: $config{'halign'} = $align;
2366: }
2367: if (($colspan =~ /^\d+$/) && ($colspan > 0)) {
2368: $config{'colspan'} = $colspan;
2369: }
2370: if (($rowspan =~ /^\d+$/) && ($rowspan > 0)) {
2371: $config{'rowspan'} = $rowspan;
2372: }
2373: if ($width ne '') {
2374: $config{'width'} = $width;
2375: }
2376: return \%config;
2377: }
2378:
2379: sub start_td_tex {
2380: my ($parstack,$parser,$safeeval) = @_;
2381:
2382: # At this stage, an empty cell is created with the
2383: # appropriate rowspan/colspan and alignment
2384: # attributes, but empty of text. end_td_tex will
2385: # fetch the contents from the recursive parse and
2386: # fill the cell with them:
2387: my $align = &Apache::lonxml::get_param('align', $parstack, $safeeval);
2388: my $rowspan = &Apache::lonxml::get_param('rowspan', $parstack, $safeeval);
2389: my $colspan = &Apache::lonxml::get_param('colspan', $parstack, $safeeval);
2390: my $width = &Apache::lonxml::get_param('TeXwidth', $parstack, $safeeval);
2391: my $config = &cell_config_hash($align, $rowspan, $colspan, $width);
2392:
2393: my $table = $Apache::londefdef::table[-1];
2394: $table->add_cell('', $config);
2395:
2396:
2397: #------------------------------------------------
2398: # Old table code.
2399: #------------------------------------------------
2400:
2401: if (0) {
2402:
2403: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2404: if ($alignchar eq '') {
2405: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
2406: }
2407: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
2408: $Apache::londefdef::table[-1]{'counter_columns'}++;
2409: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2410: if (defined $TeXwidth) {
2411: my $current_length=&recalc($TeXwidth);
2412: $current_length=~/(\d+\.?\d*)/;
2413: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2414: }
2415: }
2416: &Apache::lonxml::startredirection();
2417: return '';
2418: }
2419:
2420: sub end_td_tex {
2421:
2422: my $text = &Apache::lonxml::endredirection();
2423: my $table = $Apache::londefdef::table[-1];
2424: $table->append_cell_text($text);
2425:
2426: #-------------------------------------------------
2427: # Old table code
2428: #-------------------------------------------------
2429:
2430: if (0) {
2431: my ($parstack,$parser,$safeeval) = @_;
2432: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2433: my $current_column = $Apache::londefdef::table[-1]{'counter_columns'};
2434: my $data = &Apache::lonxml::endredirection();
2435:
2436: # The rowspan array of the table indicates which cells are part of a span.
2437: # n indicates the start of a span set of n rows.
2438: # ^ indicates a cell that continues a span set.
2439: # _ indicates the cell is at the bottom of a span set.
2440: # If this and subsequent cells are part of a rowspan, we must
2441: # push along the row until we find one that is not.
2442:
2443: while ((defined $Apache::londefdef::table[-1]{'rowspan'}[$current_row] [$current_column])
2444: && ($Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column] =~ /[\^\_]/)) {
2445: # Part of a span.
2446: push @ {$Apache::londefdef::table[-1]{'content'}[-1]}, '';
2447: $current_column++;
2448: }
2449: $Apache::londefdef::table[-1]{'counter_columns'} = $current_column;
2450:
2451:
2452: # Get the column and row spans.
2453: # Colspan can be done via \multicolumn if I can figure out the data structs.
2454:
2455: my $colspan = &Apache::lonxml::get_param('colspan', $parstack, $safeeval, undef, 0);
2456: if (!$colspan) {
2457: $colspan = 1;
2458: }
2459:
2460: my $rowspan = &Apache::lonxml::get_param('rowspan', $parstack, $safeeval, undef, 0);
2461: if (!$rowspan) {
2462: $rowspan = 1;
2463: }
2464:
2465:
2466:
2467: for (my $c = 0; $c < $colspan; $c++) {
2468: $Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column+$c] = $rowspan;
2469: for (my $i = 1; $i < $rowspan; $i++) {
2470: $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column+$c] = '^';
2471: if ($i == ($rowspan-1)) {
2472: $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column+$c] = '_';
2473: }
2474: }
2475: }
2476:
2477: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2478: if (defined $TeXwidth) {
2479: for (my $c = 0; $c < $colspan; $c++) {
2480: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2481: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2482: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2483: }
2484: } else {
2485: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2486: my $garbage_data=$data;
2487: my $fwidth=0;
2488: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2489: my $current_length=&recalc($1);
2490: $current_length=~/(\d+\.?\d*)/;
2491: if ($fwidth<$1) {$fwidth=$1;}
2492: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2493: }
2494: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2495: my $current_length=$1;
2496: if ($fwidth<$current_length) {$fwidth=$current_length;}
2497: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2498: }
2499: for (my $c = 0; $c < $colspan; $c++) {
2500: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2501: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2502: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2503: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2504: }
2505: } elsif ($data=~/\\parbox\{\s*\d+\.?\d*\s*(mm|cm|in|pc|pt)*\s*\}/ or $data=~/\\epsfxsize\s*=\s*\d+\.?\d*\s*(mm|cm|in|pc|pt)*/) {
2506: my $garbage_data=$data;
2507: my $fwidth=0;
2508: while ($garbage_data=~/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)\s*\}/) {
2509: my $current_length=&recalc($1);
2510: $current_length=~/(\d+\.?\d*)/;
2511: if ($fwidth<$1) {$fwidth=$1;}
2512: $garbage_data=~s/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2513: }
2514: while ($garbage_data=~/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2515: my $current_length=&recalc($1);
2516: $current_length=~/(\d+\.?\d*)/;
2517: if ($fwidth<$1) {$fwidth=$1;}
2518: $garbage_data=~s/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2519: }
2520: for (my $c = 0; $c < $colspan; $c++) {
2521: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2522: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2523: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2524: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2525: }
2526: $data=~s/\\\\\s*$//;
2527: } else {
2528: $data=~s/^\s+(\S.*)/$1/;
2529: $data=~s/(.*\S)\s+$/$1/;
2530: $data=~s/(\s)+/$1/;
2531: my ($current_length,$min_length)=(0,0);
2532: if ($data=~/\\vskip/) {
2533: my $newdata=$data;
2534: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2535: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2536: foreach my $elementdata (@newdata) {
2537: my $lengthnewdata=2.5*&LATEX_length($elementdata);
2538: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
2539: my @words=split(/ /,$elementdata);
2540: foreach my $word (@words) {
2541: my $lengthword=2.5*&LATEX_length($word);
2542: if ($min_length<$lengthword) {$min_length=$lengthword;}
2543: }
2544: }
2545: } else {
2546: $current_length=2.5*&LATEX_length($data);
2547: my @words=split(/ /,$data);
2548: foreach my $word (@words) {
2549: my $lengthword=2*&LATEX_length($word);
2550: if ($min_length<$lengthword) {$min_length=$lengthword;}
2551: }
2552: }
2553: for (my $c = 0; $c < $colspan; $c++) {
2554: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2555: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2556: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2557: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
2558: }
2559: }
2560: }
2561: # Substitute all of the tables nested in this cell in their appropriate places.
2562:
2563:
2564: my $nested_count = $#{$Apache::londefdef::table[-1]{'include'}}; # This one is constant...
2565: for (my $in=0; $in<=$nested_count; $in++) {
2566: my $nested = shift @{$Apache::londefdef::table[-1]{'include'}};
2567: $nested =~ s/\\end\{tabular\}\\strut\\\\/\\end\{tabular\}/;
2568: # $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2569: $data =~ s/\\keephidden\{NEW TABLE ENTRY\}/$nested/;
2570:
2571: }
2572: # Should be be killing off the 'include' elements as they're used up?
2573:
2574: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
2575:
2576:
2577:
2578:
2579: # the colspan array will indicate how many columns will be spanned by this
2580: # cell..this requires that counter_columns also be adjusted accordingly
2581: # so that the next bunch of text goes in the right cell. Note that since
2582: # counter_columns is incremented in the start_td_tex, we adjust by colspan-1.
2583: #
2584:
2585: $Apache::londefdef::table[-1]{'counter_columns'} += $colspan -1;
2586: for (my $i = 0; $i < ($colspan -1); $i++) {
2587: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },'';
2588: }
2589: for (my $r = 0; $r < $rowspan; $r++) {
2590: $Apache::londefdef::table[-1]{'colspan'}[$current_row+$r][$current_column] = $colspan;
2591: # Put empty text in spanned cols.
2592:
2593: }
2594:
2595: }
2596:
2597: return '';
2598: }
2599:
2600: sub end_td {
2601: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2602: my $currentstring = '';
2603: if ($target eq 'web' || $target eq 'webgrade') {
2604: $currentstring = $token->[2];
2605: } elsif ($target eq 'tex') {
2606: $Apache::londefdef::TD_redirection =0;
2607: &end_td_tex($parstack,$parser,$safeeval);
2608: }
2609: return $currentstring;
2610: }
2611:
2612: #-- <th> tag (end tag optional)
2613: sub start_th {
2614: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2615: my $currentstring = '';
2616: if ($target eq 'web' || $target eq 'webgrade') {
2617: $currentstring = $token->[4];
2618: } elsif ($target eq 'tex') {
2619: $Apache::londefdef::TD_redirection = 1;
2620: &tagg_check('tr','th',$tagstack,$parstack,$parser,$safeeval);
2621: }
2622: return $currentstring;
2623: }
2624:
2625: sub tagg_check {
2626: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
2627: my @ar=@$parstack;
2628: for (my $i=$#ar-1;$i>=0;$i--) {
2629: if (lc($$tagstack[$i]) eq $good_tag) {
2630: &start_th_tex($parstack,$parser,$safeeval);
2631: last;
2632: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2633: splice @ar, $i+1;
2634: &end_th_tex(\@ar,$parser,$safeeval);
2635: &start_th_tex($parstack,$parser,$safeeval);
2636: last;
2637: }
2638: }
2639: return '';
2640: }
2641:
2642: sub start_th_tex {
2643: my ($parstack,$parser,$safeeval) = @_;
2644:
2645: my $alignment = &Apache::lonxml::get_param('align', $parstack, $safeeval, undef,1);
2646: my $rowspan = &Apache::lonxml::get_param('rowspan', $parstack, $safeeval, undef, 1);
2647: my $colspan = &Apache::lonxml::get_param('colspan', $parstack, $safeeval, undef, 1);
2648:
2649: my $config = cell_config_hash($alignment, $rowspan, $colspan);
2650: my $table = $Apache::londefdef::table[-1];
2651: $table->add_cell('\textbf{', $config);
2652:
2653: #-------------------------------------------------------------------------------------
2654: #
2655: # Old table code.
2656: #
2657: #--------------------------------------------------------------------------------------
2658:
2659: if (0) {
2660:
2661:
2662: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2663: if ($alignchar eq '') {
2664: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
2665: }
2666: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
2667: $Apache::londefdef::table[-1]{'counter_columns'}++;
2668: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2669: if (defined $TeXwidth) {
2670: my $current_length=&recalc($TeXwidth);
2671: $current_length=~/(\d+\.?\d*)/;
2672: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2673: }
2674: }
2675:
2676: # Accept xml until the </th> tag.
2677:
2678: &Apache::lonxml::startredirection();
2679: return '';
2680: }
2681:
2682: sub end_th_tex {
2683: my ($parstack,$parser,$safeeval) = @_;
2684:
2685: my $table = $Apache::londefdef::table[-1];
2686: my $text = &Apache::lonxml::endredirection();
2687: $table->append_cell_text($text.'}');
2688:
2689: #-----------------------------------------------------------------------------
2690: # Old table code:
2691: #-----------------------------------------------------------------------------
2692:
2693: if (0) {
2694: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2695: my $data=&Apache::lonxml::endredirection();
2696: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2697: if (defined $TeXwidth) {
2698: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2699: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2700: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2701: } else {
2702: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2703: my $garbage_data=$data;
2704: my $fwidth=0;
2705: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2706: my $current_length=&recalc($1);
2707: $current_length=~/(\d+\.?\d*)/;
2708: if ($fwidth<$1) {$fwidth=$1;}
2709: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2710: }
2711: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2712: my $current_length=$1;
2713: if ($fwidth<$current_length) {$fwidth=$current_length;}
2714: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2715: }
2716: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2717: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2718: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2719: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2720: } else {
2721: $data=~s/^\s+(\S.*)/$1/;
2722: $data=~s/(.*\S)\s+$/$1/;
2723: $data=~s/(\s)+/$1/;
2724: my ($current_length,$min_length)=(0,0);
2725: if ($data=~/\\vskip/) {
2726: my $newdata=$data;
2727: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2728: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2729: foreach my $elementdata (@newdata) {
2730: my $lengthnewdata=2.5*&LATEX_length($elementdata);
2731: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
2732: my @words=split(/ /,$elementdata);
2733: foreach my $word (@words) {
2734: my $lengthword=2.5*&LATEX_length($word);
2735: if ($min_length<$lengthword) {$min_length=$lengthword;}
2736: }
2737: }
2738: } else {
2739: $current_length=2.5*&LATEX_length($data);
2740: my @words=split(/ /,$data);
2741: foreach my $word (@words) {
2742: my $lengthword=2*&LATEX_length($word);
2743: if ($min_length<$lengthword) {$min_length=$lengthword;}
2744: }
2745: }
2746: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2747: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2748: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2749: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
2750: }
2751: }
2752: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
2753: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2754: }
2755: #make data bold
2756: $data='\textbf{'.$data.'}';
2757: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
2758: }
2759: return'';
2760: }
2761:
2762: sub end_th {
2763: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2764: my $currentstring = &end_p(); # Close any open <p> in the row.
2765: if ($target eq 'web' || $target eq 'webgrade') {
2766: $currentstring .= $token->[2];
2767: } elsif ($target eq 'tex') {
2768: $Apache::londefdef::TD_redirection =0;
2769: &end_th_tex($parstack,$parser,$safeeval);
2770: }
2771: return $currentstring;
2772: }
2773:
2774: #-- <img> tag (end tag forbidden)
2775: #
2776: # Render the <IMG> tag.
2777: # <IMG> has the following attributes (in addition to the
2778: # standard HTML ones:
2779: # TeXwrap - Governs how the tex target will try to wrap text around
2780: # horizontally aligned images.
2781: # TeXwidth - The width of the image when rendered for print (mm).
2782: # TeXheight - The height of the image when rendered for print (mm)
2783: # (Note there seems to also be support for this as a % of page size)
2784: #
2785: sub start_img {
2786: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
2787: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,
2788: undef,1);
2789: if (! $src &&
2790: ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex')
2791: ) {
2792: my $inside = &Apache::lonxml::get_all_text("/img",$parser,$style);
2793: return '';
2794: }
2795: unless ($src =~ m{^data\:image/gif;base64,}) {
2796: &Apache::lonxml::extlink($src);
2797: }
2798: my $currentstring = '';
2799: my $scaling = .3;
2800:
2801: # Render unto browsers that which are the browser's...
2802:
2803: if ($target eq 'web' || $target eq 'webgrade') {
2804: my $enc = ('yes' eq
2805: lc(&Apache::lonxml::get_param('encrypturl',$parstack,
2806: $safeeval)));
2807: unless ($src =~ m{^data\:image/gif;base64,}) {
2808: $currentstring.=&Apache::lonenc::encrypt_ref($token,{'src'=>$src},
2809: $enc);
2810: }
2811:
2812: # and render unto TeX that which is LaTeX
2813: } elsif ($target eq 'tex') {
2814: #
2815: # The alignment will require some superstructure to be put around
2816: # the \includegraphics stuff. At present we can only partially
2817: # simulate the alignments offered by html.
2818: #
2819: #
2820: my $align = lc(&Apache::lonxml::get_param('align',
2821: $parstack,
2822: $safeeval,
2823: undef,1));
2824: if(!$align) {
2825: $align = "bottom"; # This is html's default so it's ours too.
2826: }
2827: #
2828: &Apache::lonxml::debug("Alignemnt = $align");
2829: # LaTeX's image/text wrapping is really bad since it wants to
2830: # make figures float.
2831: # The user has the optional parameter (applicable only to l/r
2832: # alignment to use the picins/parpic directive to get wrapped text
2833: # this is also imperfect.. that's why we give them a choice...
2834: # so they can't yell at us for our choice.
2835: #
2836: my $latex_rendering = &Apache::lonxml::get_param('TeXwrap',
2837: $parstack,
2838: $safeeval,
2839: undef,0);
2840: # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering");
2841: if(!$latex_rendering) {
2842: $latex_rendering = "texwrap";
2843: }
2844: # using texwrap inside a table does not work. So, if after all of this,
2845: # texwrap is on, we turn it off if we detect we're in a table:
2846: #
2847: if (($latex_rendering eq 'texwrap') && &is_inside_of($tagstack, "table")) {
2848: $latex_rendering = 'parpic';
2849: }
2850:
2851: # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering image file: $src");
2852:
2853: #if original bmp/gif/jpg/png/svg file exist do following:
2854: my $origsrc=$src;
2855: my ($path,$file) = &get_eps_image($src);
2856: # &Apache::lonnet::logthis("Image source: $src result: $path $file");
2857: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
2858: &Apache::lonxml::debug("path = $path file = $file src = $src");
2859: if (-e $src) {
2860: &Apache::lonxml::debug("$src exists");
2861: my ($height_param,$width_param)=
2862: &image_size($origsrc,0.3,$parstack,$safeeval);
2863: my $size;
2864: if ($width_param) { $size.='width='.$width_param.' mm,'; }
2865: if ($height_param) { $size.='height='.$height_param.' mm]'; }
2866: # Default size if not able to extract that (e.g. eps image).
2867:
2868: # &Apache::lonnet::logthis("Size = $size");
2869:
2870: $size='['.$size;
2871: $size=~s/,$/]/;
2872: $currentstring .= '\graphicspath{{'.$path.'}}'
2873: .'\includegraphics'.$size.'{'.$file.'} ';
2874: my $closure;
2875: ($currentstring, $closure) = &align_latex_image($align,
2876: $latex_rendering,
2877: $currentstring,
2878: $width_param,
2879: $height_param);
2880: $currentstring .= $closure;
2881:
2882: } else {
2883: &Apache::lonxml::debug("$src does not exist");
2884: #original image file doesn't exist so check the alt attribute
2885: my $alt =
2886: &Apache::lonxml::get_param('alt',$parstack,$safeeval,undef,1);
2887: unless ($alt) {
2888: $alt=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
2889: }
2890:
2891: if ($alt) { $currentstring .= ' '.$alt.' '; }
2892: }
2893:
2894: # And here's where the semi-quote breaks down: allow the user
2895: # to edit the beast as well by rendering the problem for edit:
2896: } elsif ($target eq 'edit') {
2897: my $only = join(',',&Apache::loncommon::filecategorytypes('Pictures'));
2898: $currentstring .=&Apache::edit::tag_start($target,$token);
2899: $currentstring .=&Apache::edit::text_arg('Image Url:','src',$token,70).
2900: &Apache::edit::browse_or_search('src',undef,'alt',$only,undef,1).
2901: '<br />';
2902: $currentstring .=&Apache::edit::text_arg('Description:','alt',$token,70).'<br />';
2903: $currentstring .=&Apache::edit::text_arg('width (pixel):','width',$token,5);
2904: $currentstring .=&Apache::edit::text_arg('height (pixel):','height',$token,5).'<br />';
2905: $currentstring .=&Apache::edit::text_arg('TeXwidth (mm):','TeXwidth',$token,5);
2906: $currentstring .=&Apache::edit::text_arg('TeXheight (mm):','TeXheight',$token,5);
2907: $currentstring .=&Apache::edit::select_arg('Alignment:','align',
2908: ['','bottom','middle','top','left','right'],$token,5);
2909: $currentstring .=&Apache::edit::select_arg('TeXwrap:', 'TeXwrap',
2910: ['', 'none','parbox', 'parpic', 'wrapfigure'], $token, 2);
2911: my $alt= &Apache::lonxml::get_param('alt',$parstack,$safeeval);
2912: my $enc= &Apache::lonxml::get_param('encrypturl',$parstack,$safeeval);
2913:
2914: $currentstring .=&Apache::edit::select_arg('Encrypt URL:','encrypturl',
2915: ['no','yes'], $token, 2);
2916: if (($alt=~/\S/) && (lc($enc) eq 'yes')) {
2917: $currentstring.='<br /><span class="LC_warning">'.&mt('Warning: the description "[_1]" will be available, even for encrypted URL',$alt).'</span><br />';
2918: }
2919: $currentstring .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2920: my $src= &Apache::lonxml::get_param('src',$parstack,$safeeval);
2921: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
2922: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
2923: my $element = &Apache::edit::get_element('src');
2924: my $text;
2925: if ($token->[2]{'src'}=~/\$/) {
2926: $text = &mt('Variable image source');
2927: } elsif ($token->[2]{'src'}=~/\S/) {
2928: $currentstring .= '<img src="'.$src.'" alt="'.$alt.'" ';
2929: if ($width) { $currentstring.=' width="'.$width.'" '; }
2930: if ($height) { $currentstring.=' height="'.$height.'" '; }
2931: $currentstring .= ' id="previewimg_'.$element.'" />';
2932: } else {
2933: $text = &mt("No image source specified");
2934: }
2935: $currentstring .= ' <span id="showimg_'.$element.'">'.$text.'</span>';
2936: } elsif ($target eq 'modified') {
2937: my ($osrc,$owidth,$oheight)=
2938: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2939: my $ctag=&Apache::edit::get_new_args($token,$parstack,
2940: $safeeval,'src','alt','align',
2941: 'TeXwidth','TeXheight', 'TeXwrap',
2942: 'width','height','encrypturl');
2943: my ($nsrc,$nwidth,$nheight)=
2944: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2945: my $loc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$nsrc);
2946: &image_replication($loc);
2947: my ($iwidth,$iheight);
2948: if (-e $loc) {
2949: my $image = Image::Magick->new;
2950: $image->Read($loc);
2951: ($iwidth, $iheight) = ($image->Get('width'),
2952: $image->Get('height'));
2953: }
2954: if ($osrc ne $nsrc || (!$nwidth && !$nheight)) {
2955: # changed image or no size specified,
2956: # if they didn't explicitly change the
2957: # width or height use the ones from the image
2958: if ($iwidth && $iheight) {
2959: if ($owidth == $nwidth || (!$nwidth && !$nheight)) {
2960: $token->[2]{'width'} = $iwidth;$ctag=1;
2961: }
2962: if ($oheight == $nheight || (!$nwidth && !$nheight)) {
2963: $token->[2]{'height'}=$iheight;$ctag=1;
2964: }
2965: }
2966: }
2967: my ($cwidth,$cheight)=($token->[2]{'width'},$token->[2]{'height'});
2968: # if we don't have a width or height
2969: if ($iwidth && $cwidth && !$cheight) {
2970: $token->[2]{'height'}=int(($cwidth/$iwidth)*$iheight);$ctag=1;
2971: }
2972: if ($iheight && $cheight && !$cwidth) {
2973: $token->[2]{'width'}=int(($cheight/$iheight)*$iwidth);$ctag=1;
2974: }
2975: if ($ctag) {$currentstring=&Apache::edit::rebuild_tag($token);}
2976: }
2977:
2978: return $currentstring;
2979: }
2980:
2981: sub end_img {
2982: my ($target,$token) = @_;
2983: my $currentstring = '';
2984: if ($target eq 'web' || $target eq 'webgrade') {
2985: $currentstring = $token->[2];
2986: } elsif ($target eq 'tex') {
2987: $currentstring = '';
2988: }
2989: return $currentstring;
2990: }
2991:
2992: #-- <applet> tag (end tag required)
2993: sub start_applet {
2994: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2995:
2996: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,undef,1);
2997: &Apache::lonxml::extlink($code);
2998: my $archive=&Apache::lonxml::get_param('archive',$parstack,$safeeval,
2999: undef,1);
3000: &Apache::lonxml::extlink($archive);
3001: my $currentstring = '';
3002: if ($target eq 'web' || $target eq 'webgrade') {
3003: $currentstring = $token->[4];
3004: } elsif ($target eq 'tex') {
3005: # Turn off some stuff we can't be inside thank you LaTeX
3006:
3007: my $restart_sub = 0;
3008: my $restart_sup = 0;
3009:
3010: # Since <sub> and <sup> are simple tags it's ok to turn off/on
3011: # using the start_ stop_ functions.. those tags only care about
3012: # $target.
3013:
3014: if (&is_inside_of($tagstack, "sub")) {
3015: $restart_sub = 1;
3016: $currentstring .= &end_sub($target, $token, $tagstack,
3017: $parstack, $parser, $safeeval);
3018: }
3019: if (&is_inside_of($tagstack, "sup")) {
3020: $restart_sup = 1;
3021: $currentstring .= &end_sup($target, $token, $tagstack,
3022: $parstack, $parser, $safeeval);
3023: }
3024:
3025: # Now process the applet; just replace it with its alt attribute.
3026:
3027: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
3028: $safeeval,undef,1);
3029: unless ($alttag) {
3030: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,
3031: undef,1);
3032: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
3033: $code);
3034: }
3035: $currentstring.='\begin{center} \fbox{Java Applet: '.$alttag.
3036: '.}\end{center}';
3037:
3038: # Turn stuff back on that we can't be inside of.
3039:
3040: if ($restart_sub) {
3041: $currentstring .= &start_sub($target, $token, $tagstack,
3042: $parstack, $parser, $safeeval);
3043: }
3044: if ($restart_sup) {
3045: $currentstring .= &start_sup($target, $token, $tagstack,
3046: $parstack, $parser, $safeeval);
3047: }
3048: }
3049: return $currentstring;
3050: }
3051:
3052: sub end_applet {
3053: my ($target,$token) = @_;
3054: my $currentstring = '';
3055: if ($target eq 'web' || $target eq 'webgrade') {
3056: $currentstring = $token->[2];
3057: } elsif ($target eq 'tex') {
3058: }
3059: return $currentstring;
3060: }
3061:
3062: #-- <embed> tag (end tag optional/required)
3063: sub start_embed {
3064: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3065: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
3066: &Apache::lonxml::extlink($src);
3067: my $currentstring = '';
3068: if ($target eq 'web' || $target eq 'webgrade') {
3069: $currentstring=&Apache::lonenc::encrypt_ref($token,{'src'=>$src});
3070: } elsif ($target eq 'tex') {
3071: }
3072: return $currentstring;
3073: }
3074:
3075: sub end_embed {
3076: my ($target,$token) = @_;
3077: my $currentstring = '';
3078: if ($target eq 'web' || $target eq 'webgrade') {
3079: $currentstring = $token->[2];
3080: } elsif ($target eq 'tex') {
3081: # ./.
3082: }
3083: return $currentstring;
3084: }
3085:
3086: #-- <param> tag (end tag forbidden)
3087: sub start_param {
3088: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3089: my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval,
3090: undef,1);
3091: if ($name =~/^cabbase$/i) {
3092: my $value=&Apache::lonxml::get_param('value',$parstack,
3093: $safeeval,undef,1);
3094: &Apache::lonxml::extlink($value);
3095: } elsif ($name eq 'flashvars') {
3096: if (lc(&Apache::lonxml::get_param('type',$parstack,$safeeval,-2,1))
3097: eq 'application/x-shockwave-flash') {
3098: my $launcher =
3099: &Apache::lonxml::get_param('data',$parstack,$safeeval,-2,1);
3100: if ($launcher) {
3101: &Apache::lonxml::extlink($launcher);
3102: }
3103: my $flashvars=&Apache::lonxml::get_param('value',$parstack,
3104: $safeeval,undef,1);
3105: if ($flashvars ne '') {
3106: foreach my $item (split(/\&/,$flashvars)) {
3107: my ($key,$value)=split(/=/,$item,2);
3108: if ($key eq 'content') {
3109: if ($value ne '') {
3110: my ($dir) = ($launcher =~ m{(.+/)[^/]+$});
3111: &Apache::lonxml::extlink($dir.$value);
3112: }
3113: } elsif ($key eq 'thumb') {
3114: if ($value ne '') {
3115: &Apache::lonxml::extlink($value);
3116: }
3117: }
3118: }
3119: }
3120: }
3121: }
3122: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
3123: if ($src ne '') {
3124: &Apache::lonxml::extlink($src);
3125: }
3126: my $currentstring = '';
3127: if ($target eq 'web' || $target eq 'webgrade') {
3128: my %toconvert;
3129: if ($src) { $toconvert{'src'}= $src; }
3130: if ($name=~/^cabbase$/i) {
3131: $toconvert{'value'}=&Apache::lonxml::get_param('value',$parstack,
3132: $safeeval,undef,1);
3133: }
3134: $currentstring = &Apache::lonenc::encrypt_ref($token,\%toconvert);
3135: } elsif ($target eq 'tex') {
3136: }
3137: return $currentstring;
3138: }
3139:
3140: sub end_param {
3141: my ($target,$token) = @_;
3142: my $currentstring = '';
3143: if ($target eq 'web' || $target eq 'webgrade') {
3144: $currentstring = $token->[2];
3145: } elsif ($target eq 'tex') {
3146: }
3147: return $currentstring;
3148: }
3149:
3150: #-- <allow> tag
3151: sub start_allow {
3152: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3153: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
3154: &Apache::lonxml::extlink($src);
3155:
3156: if ($target eq 'tex') { &image_replication($src); }
3157: my $result;
3158: if ($target eq 'edit') {
3159: $result .=&Apache::edit::tag_start($target,$token);
3160: $result .=&Apache::edit::text_arg('File Spec:','src',$token,70);
3161: $result .=&Apache::edit::end_row();#.&Apache::edit::start_spanning_row();
3162: } elsif ($target eq 'modified') {
3163: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
3164: $safeeval,'src');
3165: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
3166: }
3167: return $result;
3168: }
3169:
3170: sub end_allow {
3171: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3172: if ( $target eq 'edit') { return (&Apache::edit::end_table()); }
3173: return '';
3174: }
3175:
3176: #-- Frames (end tag required)
3177: #-- <frameset>
3178: sub start_frameset {
3179: my ($target,$token) = @_;
3180: my $currentstring = ''; # Close any pending para.
3181: if ($target eq 'web' || $target eq 'webgrade') {
3182: $currentstring =
3183: &Apache::loncommon::start_page($Apache::londefdef::title,
3184: $Apache::londefdef::head,
3185: {'add_entries' => $token->[2],
3186: # 'no_title' => 1,
3187: 'force_register' => 1,
3188: 'frameset' => 1,});
3189:
3190: }
3191: return $currentstring;
3192: }
3193:
3194: sub end_frameset {
3195: my ($target,$token) = @_;
3196: my $currentstring = '';
3197: if ($target eq 'web' || $target eq 'webgrade') {
3198: $currentstring = $token->[2];
3199: }
3200: return $currentstring;
3201: }
3202:
3203: #-- <xmp> (end tag required)
3204: sub start_xmp {
3205: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3206: my $currentstring = '';
3207: if ($target eq 'web' || $target eq 'webgrade') {
3208: $currentstring .= $token->[4];
3209: } elsif ($target eq 'tex') {
3210: $currentstring .= '\begin{verbatim}';
3211: }
3212: return $currentstring;
3213: }
3214:
3215: sub end_xmp {
3216: my ($target,$token) = @_;
3217: my $currentstring = '';
3218: if ($target eq 'web' || $target eq 'webgrade') {
3219: $currentstring .= $token->[2];
3220: } elsif ($target eq 'tex') {
3221: $currentstring .= '\end{verbatim}';
3222: }
3223: return $currentstring;
3224: }
3225:
3226: #-- <pre> (end tag required)
3227: sub start_pre {
3228: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3229: my $currentstring = &end_p(); # close off pending <p>
3230: if ($target eq 'web' || $target eq 'webgrade') {
3231: $currentstring .= $token->[4];
3232: } elsif ($target eq 'tex') {
3233: $currentstring .= '\begin{verbatim}';
3234: &Apache::lonxml::disable_LaTeX_substitutions();
3235: }
3236: return $currentstring;
3237: }
3238:
3239: sub end_pre {
3240: my ($target,$token) = @_;
3241: my $currentstring = '';
3242: if ($target eq 'web' || $target eq 'webgrade') {
3243: $currentstring .= $token->[2];
3244: } elsif ($target eq 'tex') {
3245: $currentstring .= '\end{verbatim}';
3246: &Apache::lonxml::enable_LaTeX_substitutions();
3247: }
3248: return $currentstring;
3249: }
3250:
3251: #-- <insert>
3252: sub start_insert {
3253: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3254: my $currentstring = '';
3255: if ($target eq 'web' || $target eq 'webgrade') {
3256: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
3257: $currentstring .= '<b>'.$display.'</b>';;
3258: }
3259: return $currentstring;
3260: }
3261:
3262: sub end_insert {
3263: my ($target,$token) = @_;
3264: my $currentstring = '';
3265: if ($target eq 'web' || $target eq 'webgrade') {
3266: $currentstring .= '';
3267: }
3268: return $currentstring;
3269: }
3270:
3271: #-- <externallink>
3272: sub start_externallink {
3273: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3274: my $currentstring = '';
3275: if ($target eq 'web' || $target eq 'webgrade') {
3276: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
3277: $currentstring .= '<b>'.$display.'</b>';;
3278: }
3279: return $currentstring;
3280: }
3281:
3282: sub end_externallink {
3283: my ($target,$token) = @_;
3284: my $currentstring = '';
3285: if ($target eq 'web' || $target eq 'webgrade') {
3286: $currentstring .= '';
3287: }
3288: return $currentstring;
3289: }
3290:
3291: #-- <blankspace height="">
3292: sub start_blankspace {
3293: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3294: my $currentstring = &end_p(); # closes off any unclosed <p>
3295: if ($target eq 'tex') {
3296: my $howmuch = &Apache::lonxml::get_param('height',$parstack,$safeeval,undef,1);
3297: $currentstring .= '\vskip '.$howmuch.' ';
3298: }
3299: return $currentstring;
3300: }
3301:
3302: sub end_blankspace {
3303: my ($target,$token) = @_;
3304: my $currentstring = '';
3305: if ($target eq 'tex') {
3306: $currentstring .= '';
3307: }
3308: return $currentstring;
3309: }
3310:
3311: #-- <abbr> tag (end tag required)
3312: sub start_abbr {
3313: my ($target,$token) = @_;
3314: my $currentstring = '';
3315: if ($target eq 'web' || $target eq 'webgrade') {
3316: $currentstring = $token->[4];
3317: }
3318: return $currentstring;
3319: }
3320:
3321: sub end_abbr {
3322: my ($target,$token) = @_;
3323: my $currentstring = '';
3324: if ($target eq 'web' || $target eq 'webgrade') {
3325: $currentstring = $token->[2];
3326: }
3327: return $currentstring;
3328: }
3329:
3330: #-- <acronym> tag (end tag required)
3331: sub start_acronym {
3332: my ($target,$token) = @_;
3333: my $currentstring = '';
3334: if ($target eq 'web' || $target eq 'webgrade') {
3335: $currentstring = $token->[4];
3336: }
3337: return $currentstring;
3338: }
3339:
3340: sub end_acronym {
3341: my ($target,$token) = @_;
3342: my $currentstring = '';
3343: if ($target eq 'web' || $target eq 'webgrade') {
3344: $currentstring = $token->[2];
3345: }
3346: return $currentstring;
3347: }
3348:
3349: #-- <area> tag (end tag forbidden)
3350: sub start_area {
3351: my ($target,$token) = @_;
3352: my $currentstring = '';
3353: if ($target eq 'web' || $target eq 'webgrade') {
3354: $currentstring = $token->[4];
3355: }
3356: return $currentstring;
3357: }
3358:
3359: sub end_area {
3360: my ($target,$token) = @_;
3361: my $currentstring = '';
3362: if ($target eq 'web' || $target eq 'webgrade') {
3363: $currentstring = $token->[2];
3364: }
3365: return $currentstring;
3366: }
3367:
3368: #-- <base> tag (end tag forbidden)
3369: sub start_base {
3370: my ($target,$token) = @_;
3371: my $currentstring = '';
3372: if ($target eq 'web' || $target eq 'webgrade') {
3373: $currentstring = $token->[4];
3374: }
3375: return $currentstring;
3376: }
3377:
3378: sub end_base {
3379: my ($target,$token) = @_;
3380: my $currentstring = '';
3381: if ($target eq 'web' || $target eq 'webgrade') {
3382: $currentstring = $token->[2];
3383: }
3384: return $currentstring;
3385: }
3386:
3387: #-- <bdo> tag (end tag required)
3388: sub start_bdo {
3389: my ($target,$token) = @_;
3390: my $currentstring = '';
3391: if ($target eq 'web' || $target eq 'webgrade') {
3392: $currentstring = $token->[4];
3393: }
3394: return $currentstring;
3395: }
3396:
3397: sub end_bdo {
3398: my ($target,$token) = @_;
3399: my $currentstring = '';
3400: if ($target eq 'web' || $target eq 'webgrade') {
3401: $currentstring = $token->[2];
3402: }
3403: return $currentstring;
3404: }
3405:
3406: #-- <bgsound> tag (end tag optional)
3407: sub start_bgsound {
3408: my ($target,$token) = @_;
3409: my $currentstring = '';
3410: if ($target eq 'web' || $target eq 'webgrade') {
3411: $currentstring = $token->[4];
3412: }
3413: return $currentstring;
3414: }
3415:
3416: sub end_bgsound {
3417: my ($target,$token) = @_;
3418: my $currentstring = '';
3419: if ($target eq 'web' || $target eq 'webgrade') {
3420: $currentstring = $token->[2];
3421: }
3422: return $currentstring;
3423: }
3424:
3425: #-- <blink> tag (end tag required)
3426: sub start_blink {
3427: my ($target,$token) = @_;
3428: my $currentstring = '';
3429: if ($target eq 'web' || $target eq 'webgrade') {
3430: $currentstring = $token->[4];
3431: }
3432: return $currentstring;
3433: }
3434:
3435: sub end_blink {
3436: my ($target,$token) = @_;
3437: my $currentstring = '';
3438: if ($target eq 'web' || $target eq 'webgrade') {
3439: $currentstring = $token->[2];
3440: }
3441: return $currentstring;
3442: }
3443:
3444: #-- <blockquote> tag (end tag required)
3445: sub start_blockquote {
3446: my ($target,$token) = @_;
3447: my $currentstring = &end_p(); # Close any unclosed <p>
3448: if ($target eq 'web' || $target eq 'webgrade') {
3449: $currentstring .= $token->[4];
3450: }
3451: if ($target eq 'tex') {
3452: $currentstring .= '\begin{quote}';
3453: }
3454: return $currentstring;
3455: }
3456:
3457: sub end_blockquote {
3458: my ($target,$token) = @_;
3459: my $currentstring = '';
3460: if ($target eq 'web' || $target eq 'webgrade') {
3461: $currentstring = $token->[2];
3462: }
3463: if ($target eq 'tex') {
3464: $currentstring = '\end{quote}';
3465: }
3466: return $currentstring;
3467: }
3468:
3469: #-- <button> tag (end tag required)
3470: sub start_button {
3471: my ($target,$token) = @_;
3472: my $currentstring = '';
3473: if ($target eq 'web' || $target eq 'webgrade') {
3474: $currentstring = $token->[4];
3475: }
3476: return $currentstring;
3477: }
3478:
3479: sub end_button {
3480: my ($target,$token) = @_;
3481: my $currentstring = '';
3482: if ($target eq 'web' || $target eq 'webgrade') {
3483: $currentstring = $token->[2];
3484: }
3485: return $currentstring;
3486: }
3487:
3488: #-- <caption> tag (end tag required)
3489: sub start_caption {
3490: my ($target,$token) = @_;
3491: my $currentstring = '';
3492: if ($target eq 'web' || $target eq 'webgrade') {
3493: $currentstring = $token->[4];
3494: }
3495: return $currentstring;
3496: }
3497:
3498: sub end_caption {
3499: my ($target,$token) = @_;
3500: my $currentstring = '';
3501: if ($target eq 'web' || $target eq 'webgrade') {
3502: $currentstring = $token->[2];
3503: }
3504: return $currentstring;
3505: }
3506:
3507: #-- <col> tag (end tag forbdden)
3508: sub start_col {
3509: my ($target,$token) = @_;
3510: my $currentstring = '';
3511: if ($target eq 'web' || $target eq 'webgrade') {
3512: $currentstring = $token->[4];
3513: }
3514: return $currentstring;
3515: }
3516:
3517: sub end_col {
3518: my ($target,$token) = @_;
3519: my $currentstring = '';
3520: if ($target eq 'web' || $target eq 'webgrade') {
3521: $currentstring = $token->[2];
3522: }
3523: return $currentstring;
3524: }
3525:
3526: #-- <colgroup tag (end tag optional)
3527: sub start_colgroup {
3528: my ($target,$token,$tagstack, $parstack, $parser, $safeeval, $style) = @_;
3529: my $currentstring = '';
3530: if ($target eq 'web' || $target eq 'webgrade') {
3531: $currentstring = $token->[4];
3532: }
3533: if ($target eq 'tex') {
3534: # TODO: Ensure this tag is in a table:
3535:
3536: # Fetch the attributes and build the hash for the
3537: # call to define_colgroup.
3538:
3539: my $span = &Apache::lonxml::get_param('span', $parstack, $safeeval);
3540: my $halign = &Apache::lonxml::get_param('halign', $parstack, $safeeval);
3541:
3542: my %colgroup_params;
3543: if ($span ne '') {
3544: $colgroup_params{'span'} = $span;
3545: }
3546: if ($halign ne '') {
3547: $colgroup_params{'halign'} = $halign;
3548: }
3549:
3550: my $table = $Apache::londefdef::table[-1];
3551: $table->define_colgroup(\%colgroup_params);
3552:
3553: }
3554: return $currentstring;
3555: }
3556:
3557: sub end_colgroup {
3558: my ($target,$token) = @_;
3559: my $currentstring = '';
3560: if ($target eq 'web' || $target eq 'webgrade') {
3561: $currentstring = $token->[2];
3562: }
3563: return $currentstring;
3564: }
3565:
3566:
3567: #-- <del> tag (end tag required)
3568: sub start_del {
3569: my ($target,$token) = @_;
3570: my $currentstring = '';
3571: if ($target eq 'web' || $target eq 'webgrade') {
3572: $currentstring = $token->[4];
3573: } elsif ($target eq 'tex') {
3574: &disable_para();
3575: $currentstring .= '\st{';
3576: }
3577: return $currentstring;
3578: }
3579:
3580: sub end_del {
3581: my ($target,$token) = @_;
3582: my $currentstring = '';
3583: if ($target eq 'web' || $target eq 'webgrade') {
3584: $currentstring = $token->[2];
3585: } elsif ($target eq 'tex') {
3586: &enable_para();
3587: $currentstring = '}';
3588: }
3589: return $currentstring;
3590: }
3591:
3592: #-- <fieldset> tag (end tag required)
3593: sub start_fieldset {
3594: my ($target,$token) = @_;
3595: my $currentstring = '';
3596: if ($target eq 'web' || $target eq 'webgrade') {
3597: $currentstring = $token->[4];
3598: }
3599: return $currentstring;
3600: }
3601:
3602: sub end_fieldset {
3603: my ($target,$token) = @_;
3604: my $currentstring = '';
3605: if ($target eq 'web' || $target eq 'webgrade') {
3606: $currentstring = $token->[2];
3607: }
3608: return $currentstring;
3609: }
3610:
3611: #-- <frame> tag (end tag forbidden)
3612: sub start_frame {
3613: my ($target,$token) = @_;
3614: my $currentstring = '';
3615: if ($target eq 'web' || $target eq 'webgrade') {
3616: $currentstring = $token->[4];
3617: }
3618: return $currentstring;
3619: }
3620:
3621: sub end_frame {
3622: my ($target,$token) = @_;
3623: my $currentstring = '';
3624: if ($target eq 'web' || $target eq 'webgrade') {
3625: $currentstring = $token->[2];
3626: }
3627: return $currentstring;
3628: }
3629:
3630: #-- <iframe> tag (end tag required)
3631: sub start_iframe {
3632: my ($target,$token) = @_;
3633: my $currentstring = '';
3634: if ($target eq 'web' || $target eq 'webgrade') {
3635: my ($src,$url,$query);
3636: if ($token->[2]->{'src'}) {
3637: $src = $token->[2]->{'src'};
3638: } elsif ($token->[2]->{'SRC'}) {
3639: $src = $token->[2]->{'SRC'};
3640: }
3641: if ($src) {
3642: ($url,$query) = ($src =~ /^([^?]+)\??([^?]*)$/);
3643: if ($query =~ /inhibitmenu=yes/) {
3644: $currentstring = $token->[4];
3645: } else {
3646: my $inhibit;
3647: if ($url =~ m{^[^/.].*\.x?html?$}) {
3648: $inhibit = 1;
3649: } elsif ($url =~ m{^/(uploaded|res)/.*\.x?html?$}) {
3650: $inhibit = 1;
3651: }
3652: if ($inhibit) {
3653: $currentstring = '<iframe ';
3654: foreach my $attrib (@{$token->[3]}) {
3655: if (lc($attrib) eq 'src') {
3656: if ($query) {
3657: $query.='&inhibitmenu=yes';
3658: } else {
3659: $query = 'inhibitmenu=yes';
3660: }
3661: $currentstring .= 'src="'.$url.'?'.$query.'" ';
3662: } else {
3663: $currentstring .= lc($attrib).'="'.$token->[2]->{$attrib}.'" ';
3664: }
3665: }
3666: $currentstring =~ s/\s+$//;
3667: if ($token->[4] =~ m{/>$}) {
3668: $currentstring .= ' />';
3669: } else {
3670: $currentstring .= '>';
3671: }
3672: } else {
3673: $currentstring = $token->[4];
3674: }
3675: }
3676: if (($url !~ m{^https?://}) && ($env{'request.course.id'})) {
3677: my $docuri = &Apache::lonnet::hreflocation('',$env{'request.filename'});
3678: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
3679: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
3680: if ($url =~ m{^([^/]|/uploaded/)}) {
3681: my $cleanhref = &clean_docs_httpref($url,$docuri,$cdom,$cnum);
3682: if ($cleanhref) {
3683: &Apache::lonxml::extlink($cleanhref);
3684: }
3685: } elsif (($url =~ m{/res/$LONCAPA::domain_re/}) && ($docuri =~ m{^\Q/uploaded/$cdom/$cnum/docs/\E})) {
3686: if (!&Apache::lonnet::allowed('bre',$url)) {
3687: if (&Apache::lonnet::is_on_map($url)) {
3688: &Apache::lonxml::extlink($url);
3689: }
3690: }
3691: }
3692: }
3693: } else {
3694: $currentstring = $token->[4];
3695: }
3696: }
3697: return $currentstring;
3698: }
3699:
3700: sub end_iframe {
3701: my ($target,$token) = @_;
3702: my $currentstring = '';
3703: if ($target eq 'web' || $target eq 'webgrade') {
3704: $currentstring = $token->[2];
3705: }
3706: return $currentstring;
3707: }
3708:
3709: #-- <ins> tag (end tag required)
3710: sub start_ins {
3711: my ($target,$token) = @_;
3712: my $currentstring = '';
3713: if ($target eq 'web' || $target eq 'webgrade') {
3714: $currentstring = $token->[4];
3715: }
3716: return $currentstring;
3717: }
3718:
3719: sub end_ins {
3720: my ($target,$token) = @_;
3721: my $currentstring = '';
3722: if ($target eq 'web' || $target eq 'webgrade') {
3723: $currentstring = $token->[2];
3724: }
3725: return $currentstring;
3726: }
3727:
3728: #-- <isindex> tag (end tag forbidden)
3729: sub start_isindex {
3730: my ($target,$token) = @_;
3731: my $currentstring = '';
3732: if ($target eq 'web' || $target eq 'webgrade') {
3733: $currentstring = $token->[4];
3734: }
3735: return $currentstring;
3736: }
3737:
3738: sub end_isindex {
3739: my ($target,$token) = @_;
3740: my $currentstring = '';
3741: if ($target eq 'web' || $target eq 'webgrade') {
3742: $currentstring = $token->[2];
3743: }
3744: return $currentstring;
3745: }
3746:
3747: #-- <keygen> tag (end tag forbidden)
3748: sub start_keygen {
3749: my ($target,$token) = @_;
3750: my $currentstring = '';
3751: if ($target eq 'web' || $target eq 'webgrade') {
3752: $currentstring = $token->[4];
3753: }
3754: return $currentstring;
3755: }
3756:
3757: sub end_keygen {
3758: my ($target,$token) = @_;
3759: my $currentstring = '';
3760: if ($target eq 'web' || $target eq 'webgrade') {
3761: $currentstring = $token->[2];
3762: }
3763: return $currentstring;
3764: }
3765:
3766: #-- <label> tag
3767: sub start_label {
3768: my ($target,$token) = @_;
3769: my $currentstring = '';
3770: if ($target eq 'web' || $target eq 'webgrade') {
3771: $currentstring = $token->[4];
3772: }
3773: return $currentstring;
3774: }
3775:
3776: sub end_label {
3777: my ($target,$token) = @_;
3778: my $currentstring = '';
3779: if ($target eq 'web' || $target eq 'webgrade') {
3780: $currentstring = $token->[2];
3781: }
3782: return $currentstring;
3783: }
3784:
3785: #-- <layer> tag (end tag required)
3786: sub start_layer {
3787: my ($target,$token) = @_;
3788: my $currentstring = '';
3789: if ($target eq 'web' || $target eq 'webgrade') {
3790: $currentstring = $token->[4];
3791: }
3792: return $currentstring;
3793: }
3794:
3795: sub end_layer {
3796: my ($target,$token) = @_;
3797: my $currentstring = '';
3798: if ($target eq 'web' || $target eq 'webgrade') {
3799: $currentstring = $token->[2];
3800: }
3801: return $currentstring;
3802: }
3803:
3804: #-- <legend> tag (end tag required)
3805: sub start_legend {
3806: my ($target,$token) = @_;
3807: my $currentstring = '';
3808: if ($target eq 'web' || $target eq 'webgrade') {
3809: $currentstring = $token->[4];
3810: }
3811: return $currentstring;
3812: }
3813:
3814: sub end_legend {
3815: my ($target,$token) = @_;
3816: my $currentstring = '';
3817: if ($target eq 'web' || $target eq 'webgrade') {
3818: $currentstring = $token->[2];
3819: }
3820: return $currentstring;
3821: }
3822:
3823: #-- <link> tag (end tag forbidden)
3824: sub start_link {
3825: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3826: my $currentstring = '';
3827: if ($target eq 'web' || $target eq 'webgrade') {
3828: my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
3829: undef,1);
3830: &Apache::lonxml::extlink($href);
3831: $currentstring = $token->[4];
3832: }
3833: return $currentstring;
3834: }
3835:
3836: sub end_link {
3837: my ($target,$token) = @_;
3838: my $currentstring = '';
3839: if ($target eq 'web' || $target eq 'webgrade') {
3840: $currentstring = $token->[2];
3841: }
3842: return $currentstring;
3843: }
3844:
3845: #-- <marquee> tag (end tag optional)
3846: sub start_marquee {
3847: my ($target,$token) = @_;
3848: my $currentstring = '';
3849: if ($target eq 'web' || $target eq 'webgrade') {
3850: $currentstring = $token->[4];
3851: }
3852: return $currentstring;
3853: }
3854:
3855: sub end_marquee {
3856: my ($target,$token) = @_;
3857: my $currentstring = '';
3858: if ($target eq 'web' || $target eq 'webgrade') {
3859: $currentstring = $token->[2];
3860: }
3861: return $currentstring;
3862: }
3863:
3864: #-- <multicol> tag (end tag required)
3865: sub start_multicol {
3866: my ($target,$token) = @_;
3867: my $currentstring = &end_p(); # Close any pending <p>
3868: if ($target eq 'web' || $target eq 'webgrade') {
3869: $currentstring .= $token->[4];
3870: }
3871: return $currentstring;
3872: }
3873:
3874: sub end_multicol {
3875: my ($target,$token) = @_;
3876: my $currentstring = '';
3877: if ($target eq 'web' || $target eq 'webgrade') {
3878: $currentstring = $token->[2];
3879: }
3880: return $currentstring;
3881: }
3882:
3883: #-- <nobr> tag (end tag required)
3884: sub start_nobr {
3885: my ($target,$token) = @_;
3886: my $currentstring = '';
3887: if ($target eq 'web' || $target eq 'webgrade') {
3888: $currentstring = $token->[4];
3889: } elsif ($target eq 'tex') {
3890: $currentstring='\mbox{';
3891: }
3892: return $currentstring;
3893: }
3894:
3895: sub end_nobr {
3896: my ($target,$token) = @_;
3897: my $currentstring = '';
3898: if ($target eq 'web' || $target eq 'webgrade') {
3899: $currentstring = $token->[2];
3900: } elsif ($target eq 'tex') {
3901: $currentstring='}';
3902: }
3903: return $currentstring;
3904: }
3905:
3906: #-- <noembed> tag (end tag required)
3907: sub start_noembed {
3908: my ($target,$token) = @_;
3909: my $currentstring = '';
3910: if ($target eq 'web' || $target eq 'webgrade') {
3911: $currentstring = $token->[4];
3912: }
3913: return $currentstring;
3914: }
3915:
3916: sub end_noembed {
3917: my ($target,$token) = @_;
3918: my $currentstring = '';
3919: if ($target eq 'web' || $target eq 'webgrade') {
3920: $currentstring = $token->[2];
3921: }
3922: return $currentstring;
3923: }
3924:
3925: #-- <noframes> tag (end tag required)
3926: sub start_noframes {
3927: my ($target,$token) = @_;
3928: my $currentstring = '';
3929: if ($target eq 'web' || $target eq 'webgrade') {
3930: $currentstring = $token->[4];
3931: }
3932: return $currentstring;
3933: }
3934:
3935: sub end_noframes {
3936: my ($target,$token) = @_;
3937: my $currentstring = '';
3938: if ($target eq 'web' || $target eq 'webgrade') {
3939: $currentstring = $token->[2];
3940: }
3941: return $currentstring;
3942: }
3943:
3944: #-- <nolayer> tag (end tag required)
3945: sub start_nolayer {
3946: my ($target,$token) = @_;
3947: my $currentstring = '';
3948: if ($target eq 'web' || $target eq 'webgrade') {
3949: $currentstring = $token->[4];
3950: }
3951: return $currentstring;
3952: }
3953:
3954: sub end_nolayer {
3955: my ($target,$token) = @_;
3956: my $currentstring = '';
3957: if ($target eq 'web' || $target eq 'webgrade') {
3958: $currentstring = $token->[2];
3959: }
3960: return $currentstring;
3961: }
3962:
3963: #-- <noscript> tag (end tag required)
3964: sub start_noscript {
3965: my ($target,$token) = @_;
3966: my $currentstring = '';
3967: if ($target eq 'web' || $target eq 'webgrade') {
3968: $currentstring = $token->[4];
3969: }
3970: return $currentstring;
3971: }
3972:
3973: sub end_noscript {
3974: my ($target,$token) = @_;
3975: my $currentstring = '';
3976: if ($target eq 'web' || $target eq 'webgrade') {
3977: $currentstring = $token->[2];
3978: }
3979: return $currentstring;
3980: }
3981:
3982: #-- <object> tag (end tag required)
3983: sub start_object {
3984: my ($target,$token) = @_;
3985: my $currentstring = '';
3986: if ($target eq 'web' || $target eq 'webgrade') {
3987: $currentstring = $token->[4];
3988: }
3989: return $currentstring;
3990: }
3991:
3992: sub end_object {
3993: my ($target,$token) = @_;
3994: my $currentstring = '';
3995: if ($target eq 'web' || $target eq 'webgrade') {
3996: $currentstring = $token->[2];
3997: }
3998: return $currentstring;
3999: }
4000:
4001: #-- <optgroup> tag (end tag required)
4002: sub start_optgroup {
4003: my ($target,$token) = @_;
4004: my $currentstring = '';
4005: if ($target eq 'web' || $target eq 'webgrade') {
4006: $currentstring = $token->[4];
4007: }
4008: return $currentstring;
4009: }
4010:
4011: sub end_optgroup {
4012: my ($target,$token) = @_;
4013: my $currentstring = '';
4014: if ($target eq 'web' || $target eq 'webgrade') {
4015: $currentstring = $token->[2];
4016: }
4017: return $currentstring;
4018: }
4019:
4020: #-- <samp> tag (end tag required)
4021: sub start_samp {
4022: my ($target,$token) = @_;
4023: my $currentstring = '';
4024: if ($target eq 'web' || $target eq 'webgrade') {
4025: $currentstring = $token->[4];
4026: } elsif ($target eq 'tex') {
4027: $currentstring='\texttt{';
4028: }
4029: return $currentstring;
4030: }
4031:
4032: sub end_samp {
4033: my ($target,$token) = @_;
4034: my $currentstring = '';
4035: if ($target eq 'web' || $target eq 'webgrade') {
4036: $currentstring = $token->[2];
4037: } elsif ($target eq 'tex') {
4038: $currentstring='}';
4039: }
4040: return $currentstring;
4041: }
4042:
4043: #-- <server> tag
4044: sub start_server {
4045: my ($target,$token) = @_;
4046: my $currentstring = '';
4047: if ($target eq 'web' || $target eq 'webgrade') {
4048: $currentstring = $token->[4];
4049: }
4050: return $currentstring;
4051: }
4052:
4053: sub end_server {
4054: my ($target,$token) = @_;
4055: my $currentstring = '';
4056: if ($target eq 'web' || $target eq 'webgrade') {
4057: $currentstring = $token->[2];
4058: }
4059: return $currentstring;
4060: }
4061:
4062: #-- <spacer> tag (end tag forbidden)
4063: sub start_spacer {
4064: my ($target,$token) = @_;
4065: my $currentstring = &end_p(); # Close off any open <p> tag.
4066: if ($target eq 'web' || $target eq 'webgrade') {
4067: $currentstring .= $token->[4];
4068: }
4069: return $currentstring;
4070: }
4071:
4072: sub end_spacer {
4073: my ($target,$token) = @_;
4074: my $currentstring = '';
4075: if ($target eq 'web' || $target eq 'webgrade') {
4076: $currentstring = $token->[2];
4077: }
4078: return $currentstring;
4079: }
4080:
4081: my @span_end_stack; # for span tex target
4082:
4083: #-- <span> tag (end tag required)
4084: sub start_span {
4085: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
4086: my $currentstring = '';
4087: if ($target eq 'web' || $target eq 'webgrade') {
4088: $currentstring = $token->[4];
4089: } elsif ($target eq 'tex') {
4090: my $endstring = '';
4091: my $family = &get_css_property('font-family',$parstack,$safeeval);
4092: if ($family eq 'monospace') {
4093: $currentstring .= '\texttt{';
4094: $endstring .= '}';
4095: }
4096: my $weight = &get_css_property('font-weight',$parstack,$safeeval);
4097: if ($weight eq 'bold') {
4098: $currentstring .= '\textbf{';
4099: $endstring .= '}';
4100: }
4101: my $style = &get_css_property('font-style',$parstack,$safeeval);
4102: if ($style eq 'italic') {
4103: $currentstring .= '\textit{';
4104: $endstring .= '}';
4105: }
4106: push(@span_end_stack, $endstring);
4107: }
4108: return $currentstring;
4109: }
4110:
4111: sub end_span {
4112: my ($target,$token) = @_;
4113: my $currentstring = '';
4114: if ($target eq 'web' || $target eq 'webgrade') {
4115: $currentstring = $token->[2];
4116: } elsif ($target eq 'tex') {
4117: my $endstring = pop @span_end_stack;
4118: $currentstring .= $endstring;
4119: }
4120: return $currentstring;
4121: }
4122:
4123: #-- <tbody> tag (end tag optional)
4124: sub start_tbody {
4125: my ($target,$token) = @_;
4126: my $currentstring = '';
4127: if ($target eq 'web' || $target eq 'webgrade') {
4128: $currentstring = $token->[4];
4129: }
4130: if ($target eq 'tex') {
4131: # TODO: Ensure this tag is within a table:
4132:
4133: my $table = $Apache::londefdef::table[-1];
4134: $table->start_body();
4135: }
4136: return $currentstring;
4137: }
4138:
4139: sub end_tbody {
4140: my ($target,$token) = @_;
4141: my $currentstring = '';
4142: if ($target eq 'web' || $target eq 'webgrade') {
4143: $currentstring = $token->[2];
4144: }
4145: if($target eq 'tex') {
4146: # TODO: Ensure this tag is within a table:
4147:
4148: my $table = $Apache::londefdef::table[-1];
4149: $table->end_body();
4150: }
4151: return $currentstring;
4152: }
4153:
4154: #-- <tfoot> tag (end tag optional)
4155: sub start_tfoot {
4156: my ($target,$token) = @_;
4157: my $currentstring = '';
4158: if ($target eq 'web' || $target eq 'webgrade') {
4159: $currentstring = $token->[4];
4160: }
4161: if ($target eq 'tex') {
4162: # TODO: ensure this is within a table tag.
4163: my $table = $Apache::londefdef::table[-1];
4164: $table->start_foot();
4165: }
4166: return $currentstring;
4167: }
4168:
4169: sub end_tfoot {
4170: my ($target,$token) = @_;
4171: my $currentstring = '';
4172: if ($target eq 'web' || $target eq 'webgrade') {
4173: $currentstring = $token->[2];
4174: }
4175: if ($target eq 'tex') {
4176: # TODO: Ensure this is in side a table
4177: my $table = $Apache::londefdef::table[-1];
4178: $table->end_foot();
4179: }
4180: return $currentstring;
4181: }
4182:
4183: #-- <thead> tag (end tag optional)
4184: sub start_thead {
4185: my ($target,$token) = @_;
4186: my $currentstring = '';
4187: if ($target eq 'web' || $target eq 'webgrade') {
4188: $currentstring = $token->[4];
4189: }
4190: if ($target eq 'tex') {
4191: # Assume we're in a table... TODO: Verify that and ignore tag if not.
4192: my $table = $Apache::londefdef::table[-1];
4193: $table->start_head();
4194: }
4195: return $currentstring;
4196: }
4197:
4198: sub end_thead {
4199: my ($target,$token) = @_;
4200: my $currentstring = '';
4201: if ($target eq 'web' || $target eq 'webgrade') {
4202: $currentstring = $token->[2];
4203: }
4204: if ($target eq 'tex') {
4205: # TODO: Verify we are in a table and ignore tag if not.
4206:
4207: my $table = $Apache::londefdef::table[-1];
4208: $table->end_head();
4209: }
4210: return $currentstring;
4211: }
4212:
4213: #-- <var> tag
4214: sub start_var {
4215: my ($target,$token) = @_;
4216: my $currentstring = '';
4217: if ($target eq 'web' || $target eq 'webgrade') {
4218: $currentstring = $token->[4];
4219: } elsif ($target eq 'tex') {
4220: $currentstring = '\textit{';
4221: }
4222: return $currentstring;
4223: }
4224:
4225: sub end_var {
4226: my ($target,$token) = @_;
4227: my $currentstring = '';
4228: if ($target eq 'web' || $target eq 'webgrade') {
4229: $currentstring = $token->[2];
4230: } elsif ($target eq 'tex') {
4231: $currentstring = '}';
4232: }
4233: return $currentstring;
4234: }
4235:
4236: #-- <wbr> tag (end tag forbidden)
4237: sub start_wbr {
4238: my ($target,$token) = @_;
4239: my $currentstring = '';
4240: if ($target eq 'web' || $target eq 'webgrade') {
4241: $currentstring = $token->[4];
4242: }
4243: return $currentstring;
4244: }
4245:
4246: sub end_wbr {
4247: my ($target,$token) = @_;
4248: my $currentstring = '';
4249: if ($target eq 'web' || $target eq 'webgrade') {
4250: $currentstring = $token->[2];
4251: }
4252: return $currentstring;
4253: }
4254:
4255: #-- <hideweboutput> tag
4256: sub start_hideweboutput {
4257: my ($target,$token) = @_;
4258: if ($target eq 'web' || $target eq 'webgrade') {
4259: &Apache::lonxml::startredirection();
4260: }
4261: return '';
4262: }
4263:
4264: sub end_hideweboutput {
4265: my ($target,$token) = @_;
4266: my $currentstring = '';
4267: if ($target eq 'web' || $target eq 'webgrade') {
4268: $currentstring = &Apache::lonxml::endredirection();
4269: }
4270: return '';
4271: }
4272:
4273:
4274: sub image_replication {
4275: my $src = shift;
4276: if (not -e $src) { &Apache::lonnet::repcopy($src); }
4277: #replicates eps or ps
4278: my $epssrc = my $pssrc = $src;
4279: $epssrc =~ s/\.(gif|jpg|jpeg|png)$/.eps/i;
4280: $pssrc =~ s/\.(gif|jpg|jpeg|png)$/.ps/i;
4281: if (not -e $epssrc && not -e $pssrc) {
4282: my $result=&Apache::lonnet::repcopy($epssrc);
4283: if ($result ne 'ok') { &Apache::lonnet::repcopy($pssrc); }
4284: }
4285: return '';
4286: }
4287:
4288:
4289:
4290: sub resize_image {
4291: my ($height_param, $width_param, $scaling,
4292: $parstack, $safeeval, $depth, $cis) = @_;
4293:
4294: # First apply the scaling...
4295:
4296: $height_param = $height_param * $scaling;
4297: $width_param = $width_param * $scaling;
4298:
4299: #do we have any specified LaTeX size of the picture?
4300: my $toget='TeXwidth';
4301: if ($cis) {
4302: $toget=lc($toget);
4303: }
4304: my $TeXwidth = &Apache::lonxml::get_param($toget,$parstack,
4305: $safeeval,$depth,$cis);
4306: $toget='TeXheight'; if ($cis) { $toget=lc($toget); }
4307: my $TeXheight = &Apache::lonxml::get_param($toget,$parstack,
4308: $safeeval,$depth,$cis);
4309: #do we have any specified web size of the picture?
4310: my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval,
4311: $depth,1);
4312: if ($TeXwidth) {
4313: my $old_width_param=$width_param;
4314: if ($TeXwidth=~/(\d+)\s*\%/) {
4315: $width_param = $1*$env{'form.textwidth'}/100;
4316: } else {
4317: $width_param = $TeXwidth;
4318: }
4319: if ($TeXheight) {
4320: $height_param = $TeXheight;
4321: } elsif ($old_width_param) {
4322: $height_param=$TeXwidth/$old_width_param*$height_param;
4323: }
4324: } elsif ($TeXheight) {
4325: if ($height_param) {
4326: $width_param = $TeXheight/$height_param*$width_param;
4327: }
4328: $height_param = $TeXheight;
4329: } elsif ($width) {
4330: my $old_width_param=$width_param;
4331: $width_param = $width*$scaling;
4332: if ($old_width_param) {
4333: $height_param=$width_param/$old_width_param*$height_param;
4334: }
4335: }
4336: if ($width_param > $env{'form.textwidth'}) {
4337: my $old_width_param=$width_param;
4338: $width_param =0.95*$env{'form.textwidth'};
4339: if ($old_width_param) {
4340: $height_param=$width_param/$old_width_param*$height_param;
4341: }
4342: }
4343:
4344: return ($height_param, $width_param);
4345: }
4346:
4347: sub image_size {
4348: my ($src,$scaling,$parstack,$safeeval,$depth,$cis)=@_;
4349:
4350: #size of image from gif/jpg/jpeg/png
4351: my $ressrc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
4352: if (-e $ressrc) {
4353: $src = $ressrc;
4354: }
4355: my $image = Image::Magick->new;
4356: my $current_figure = $image->Read($src);
4357: my $width_param = $image->Get('width');
4358: my $height_param = $image->Get('height');
4359: &Apache::lonxml::debug("Image magick says: $src : Height = $height_param width = $width_param");
4360: undef($image);
4361:
4362: ($height_param, $width_param) = &resize_image($height_param, $width_param,
4363: $scaling, $parstack, $safeeval,
4364: $depth, $cis);
4365:
4366: return ($height_param, $width_param);
4367: }
4368:
4369: sub image_width {
4370: my ($height, $width) = &image_size(@_);
4371: return $width;
4372: }
4373: # Not yet 100% sure this is correct in all circumstances..
4374: # due to my uncertainty about mods to image_size.
4375: #
4376: sub image_height {
4377: my ($height, $width) = &image_size(@_);
4378: return $height;
4379: }
4380:
4381: sub get_eps_image {
4382: my ($src)=@_;
4383: my $orig_src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1], $src);
4384:
4385: # In order to prevent the substitution of the alt text, we need to
4386: # be sure the orig_src file is on system now so:
4387:
4388: if (! -e $orig_src) {
4389: &Apache::lonnet::repcopy($orig_src); # Failure is not completely fatal.
4390: }
4391: &Apache::lonxml::debug("get_eps_image: Original image: $orig_src");
4392: my ($spath, $sname, $sext) = &fileparse($src, qr/\.(bmp|gif|png|jpg|jpeg|svg)/i);
4393: $src=~s/\.(bmp|gif|png|jpg|jpeg|svg)$/\.eps/i;
4394: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
4395: &Apache::lonxml::debug("Filelocation gives: $src");
4396: if (! -e $src) {
4397: &Apache::lonxml::debug("$src does not exist");
4398: if (&Apache::lonnet::repcopy($src) ne 'ok' ) {
4399: &Apache::lonxml::debug("Repcopy of $src failed (1)");
4400: #if replication failed try to find ps file
4401: $src=~s/\.eps$/\.ps/;
4402: &Apache::lonxml::debug("Now looking for $src");
4403: #if no ps file try to replicate it.
4404: my $didrepcopy = &Apache::lonnet::repcopy($src);
4405: &Apache::lonxml::debug("repcopy of $src ... $didrepcopy");
4406: if ( (not -e $src) ||
4407: ($didrepcopy ne 'ok')) {
4408: &Apache::lonxml::debug("Failed to find or replicate $src");
4409:
4410: #if replication failed try to produce eps file dynamically
4411: $src=~s/\.ps$/\.eps/;
4412: if (open(FILE,">>/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat")) {
4413: my $newsrc=$orig_src;
4414: $newsrc =~ s|(.*)/res/|/home/httpd/html/res/|;
4415: &Apache::lonxml::debug("queueing $newsrc for dynamic eps production.");
4416: print FILE ("$newsrc\n");
4417: close(FILE);
4418: }
4419: $src=~s|/home/httpd/html/res|/home/httpd/prtspool|;
4420: $src=~s|/home/httpd/html/priv/[^/]+/([^/]*)/|/home/httpd/prtspool/$1/|;
4421: if ($sext ne "") { # Put the ext. back in to uniquify.
4422: $src =~ s/\.eps$/$sext.eps/;
4423: }
4424:
4425: }
4426:
4427: }
4428: } else {
4429: # If the postscript file has spaces in its name,
4430: # LaTeX will gratuitiously vomit. Therefore
4431: # queue such files for copy with " " replaced by "_".
4432: # printout.pm will know them by their .ps or .eps extensions.
4433: my $newsrc = $orig_src;
4434: $newsrc =~ s|(.*)/res/|/home/httpd/html/res/|;
4435: open(FILE,">>/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat");
4436: print FILE "$src\n";
4437: close FILE;
4438: $src=~s|/home/httpd/html/res|/home/httpd/prtspool|;
4439: $src=~s|/home/httpd/html/priv/[^/]+/([^/]*)/|/home/httpd/prtspool/$1/|;
4440: }
4441: my ($path,$file)=($src=~m|(.*)/([^/]*)$|);
4442: $path =~ s/ /\_/g;
4443: $file =~ s/ /\_/g;
4444: &Apache::lonxml::debug("get_eps_image returning: $path / $file<BR />");
4445: return ($path.'/',$file);
4446: }
4447:
4448: sub eps_generation {
4449: my ($src,$file,$width_param) = @_;
4450: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat";
4451: if (open(my $tmpfile,">>$filename")) {
4452: print $tmpfile "$src\n";
4453: close($tmpfile);
4454: }
4455: my $newsrc = $src;
4456: $newsrc =~ s/(\.bmp|\.gif|\.jpg|\.jpeg)$/\.eps/i;
4457: $newsrc=~s{/home/httpd/html/res}{};
4458: $newsrc=~s{/home/httpd/html/priv/[^/]+/($LONCAPA::username_re)/}{/$1/};
4459: $newsrc=~s{/\./}{/};
4460: $newsrc=~s{/([^/]+)\.(ps|eps)}{/};
4461: if ($newsrc=~m{/home/httpd/lonUsers/}) {
4462: $newsrc=~s{/home/httpd/lonUsers}{};
4463: $newsrc=~s{/($LONCAPA::domain_re)/./././}{/$1/};
4464: }
4465: if ($newsrc=~m{/userfiles/}) {
4466: return ' \graphicspath{{'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4467: } else {
4468: return ' \graphicspath{{/home/httpd/prtspool'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4469: }
4470: }
4471:
4472: sub file_path {
4473: my $src=shift;
4474: my ($file,$path);
4475: if ($src =~ m!(.*)/([^/]*)$!) {
4476: $file = $2;
4477: $path = $1.'/';
4478: }
4479: return $file,$path;
4480: }
4481:
4482:
4483: sub recalc {
4484: my $argument = shift;
4485: if (not $argument=~/(mm|cm|in|pc|pt)/) {return $argument.' mm';}
4486: $argument=~/\s*(\d+\.?\d*)\s*(mm|cm|in|pc|pt)/;
4487: my $value=$1;
4488: my $units=$2;
4489: if ($units eq 'cm') {
4490: $value*=10;
4491: } elsif ($units eq 'in') {
4492: $value*=25.4;
4493: } elsif ($units eq 'pc') {
4494: $value*=(25.4*12/72.27);
4495: } elsif ($units eq 'pt') {
4496: $value*=(25.4/72.27);
4497: }
4498: return $value.' mm';
4499: }
4500:
4501: sub LATEX_length {
4502: my $garbage=shift;
4503: $garbage=~s/^\s+$//;
4504: $garbage=~s/^\s+(\S.*)/$1/;#space before
4505: $garbage=~s/(.*\S)\s+$/$1/;#space after
4506: $garbage=~s/(\s)+/$1/;#only one space
4507: $garbage=~s/(\\begin\{([^\}]+)}|\\end\{([^\}]+)})//g;#remove LaTeX \begin{...} and \end{...}
4508: $garbage=~s/(\$\_\{|\$\_|\$\^\{|\$\^|\}\$)//g;#remove $_{,$_,$^{,$^,}$
4509: $garbage=~s/([^\\])\$/$1/g;#$
4510: $garbage=~s/(\\ensuremath\{\_\{|\\ensuremath\{\_|\\ensuremath\{\^\{|\\ensuremath\{\^|\})//g;#remove \ensuremath{...}
4511: $garbage=~s/(\\alpha|\\beta|\\gamma|\\delta|\\epsilon|\\verepsilon|\\zeta|\\eta|\\theta|\\vartheta|\\iota|\\kappa|\\lambda|\\mu|\\nu|\\xi|\\pi|\\varpi|\\rho|\\varrho|\\sigma|\\varsigma|\\tau|\\upsilon|\\phi|\\varphi|\\chi|\\psi|\\omega|\\Gamma|\\Delta|\\Theta|\\Lambda|\\Xi|\\Pi|\\Sigma|\\Upsilon|\\Phi|\\Psi|\\Omega)/1/g;
4512: $garbage=~s/(\\pm|\\mp|\\times|\\div|\\cdot|\\ast|\\star|\\dagger|\\ddagger|\\amalg|\\cap|\\cup|\\uplus|\\sqcap|\\sqcup|\\vee|\\wedge|\\oplus|\\ominus|\\otimes|\\circ|\\bullet|\\diamond|\\lhd|\\rhd|\\unlhd|\\unrhd|\\oslash|\\odot|\\bigcirc|\\Box|\\Diamond|\\bigtriangleup|\\bigtriangledown|\\triangleleft|\\triangleright|\\setminus|\\wr)/1/g;
4513: $garbage=~s/(\\le|\\ll|\\leq|\\ge|\\geq|\\gg|\\neq|\\doreq|\\sim|\\simeq|\\subset|\\subseteq|\\sqsubset|\\sqsubseteq|\\in|\\vdash|\\models|\\supset|\\supseteq|\\sqsupset|\\sqsupseteq|\\ni|\\dash|\\perp|\\approx|\\cong|\\equiv|\\propto|\\prec|\\preceq|\\parallel|\\asymp|\\smile|\\frown|\\bowtie|\\succ|\\succeq|\\mid)/1/g;
4514: $garbage=~s/(\\not<|\\\\not\\le|\\not\\prec|\\not\\preceq|\\not\\subset|\\not\\subseteq|\\not\\sqsubseteq|\\not\\in|\\not>|\\not\\ge|\\not\\succ|\\notsucceq|\\not\\supset|\\notsupseteq|\\not\\sqsupseteq|\\notin|\\not=|\\not\\equiv|\\not\\sim|\\not\\simeq|\\not\\approx|\\not\\cong|\\not\\asymp)/1/g;
4515: $garbage=~s/(\\leftarrow|\\gets|\\Leftarrow|\\rightarrow|\\to|\\Rightarrow|\\leftrightarrow|\\Leftrightarrow|\\mapsto|\\hookleftarrow|\\leftharpoonup|\\leftkarpoondown|\\rightleftharpoons|\\longleftarrow|\\Longleftarrow|\\longrightarrow|\\Longrightarrow|\\longleftrightarrow|\\Longleftrightarrow|\\longmapsto|\\hookrightarrow|\\rightharpoonup|\\rightharpoondown|\\uparrow|\\Uparrow|\\downarrow|\\Downarrow|\\updownarrow|\\Updownarrow|\\nearrow|\\searrow|\\swarrow|\\nwarrow)/11/g;
4516: $garbage=~s/(\\aleph|\\hbar|\\imath|\\jmath|\\ell|\\wp|\\Re|\\Im|\\mho|\\prime|\\emptyset|\\nabla|\\surd|\\partial|\\top|\\bot|\\vdash|\\dashv|\\forall|\\exists|\\neg|\\flat|\\natural|\\sharp|\\\||\\angle|\\backslash|\\Box|\\Diamond|\\triangle|\\clubsuit|\\diamondsuit|\\heartsuit|\\spadesuit|\\Join|\\infty)/11/g;
4517: $garbage=~s/(\\hat\{([^}]+)}|\\check\{([^}]+)}|\\dot\{([^}]+)}|\\breve\{([^}]+)}|\\acute\{([^}]+)}|\\ddot\{([^}]+)}|\\grave\{([^}]+)}|\\tilde\{([^}]+)}|\\mathring\{([^}]+)}|\\bar\{([^}]+)}|\\vec\{([^}]+)})/$1/g;
4518: #remove some other LaTeX command
4519: $garbage=~s|\\(\w+)\\|\\|g;
4520: $garbage=~s|\\(\w+)(\s*)|$2|g;
4521: $garbage=~s|\+|11|g;
4522: my $value=length($garbage);
4523: return $value;
4524: }
4525:
4526:
4527: sub align_latex_image {
4528: my ($align, $latex_rendering, $image, $width, $height) = @_;
4529: my $currentstring; # The 1/2 wrapped image.
4530: my $closure; # The closure of the wrappage.
4531:
4532: # if it's none just return it back
4533: if ($latex_rendering eq 'none') {
4534: return ($image,'');
4535: }
4536:
4537: # If there's an alignment specification we need to honor it here.
4538: # For the horizontal alignments, we will also honor the
4539: # value of the latex specfication. The default is parbox,
4540: # and that's used for illegal values too.
4541: #
4542: # Even though we set a default alignment value, the user
4543: # could have given us an illegal value. In that case we
4544: # just use the default alignment of bottom..
4545: $currentstring = '';
4546: if ($align eq "top") {
4547: $currentstring .= '\raisebox{-'.$height.'mm}{'.$image;
4548: $closure = '}';
4549: } elsif (($align eq "center") || ($align eq "middle")) { # Being kind
4550: my $offset = $height/2;
4551: $currentstring .= '\raisebox{-'.$offset.'mm}{'.$image;
4552: $closure = '}';
4553: } elsif ($align eq "left") {
4554: if ($latex_rendering eq "parpic") {
4555: $currentstring .= '\parpic[l]{'.$image;
4556: $closure = '}';
4557: } elsif ($latex_rendering eq "parbox") {
4558: $currentstring .= '\begin{minipage}[l]{'.$width.'mm}'
4559: .$image;
4560: $closure = '\end{minipage}';
4561: } elsif ($latex_rendering eq "wrapfigure"
4562: || $latex_rendering ne 'none') { # wrapfig render
4563: $currentstring .=
4564: '\begin{wrapfigure}{l}{'.$width.'mm}'
4565: .'\scalebox{1.0}{'.$image;
4566: $closure = '}\end{wrapfigure}';
4567: }
4568: } elsif ($align eq "right") {
4569: if ($latex_rendering eq "parpic") {
4570: $currentstring .= '\parpic[r]{'.$image;
4571: $closure = '}';
4572: } elsif ($latex_rendering eq "parbox") {
4573: $currentstring .= '\begin{minipage}[r]{'.$width.'mm}'
4574: .$image;
4575: $closure = '\end{minipage}';
4576: } elsif ($latex_rendering eq "wrapfigure"
4577: || $latex_rendering ne 'none') { # wrapfig render
4578: $currentstring .=
4579: '\begin{wrapfigure}{r}{'.$width.'mm}'
4580: .'\scalebox{1.0}{'.$image;
4581: $closure = '}\end{wrapfigure}';
4582: }
4583: } else { # Bottom is also default.
4584: # $currentstring = '\raisebox{'.$height.'mm}{'.$image.'}';
4585: $currentstring .= "{$image";
4586: $closure = '}';
4587: }
4588: return ($currentstring, $closure);
4589: }
4590:
4591:
4592: sub is_inside_of {
4593: my ($tagstack, $tag) = @_;
4594: my @stack = @$tagstack;
4595: for (my $i = ($#stack - 1); $i >= 0; $i--) {
4596: if ($stack[$i] eq $tag) {
4597: return 1;
4598: }
4599: }
4600: return 0;
4601: }
4602:
4603:
4604: #
4605: # This sub provides the typical LaTeX prefix matter for tex output:
4606: #
4607: sub latex_header {
4608: my ($mode) = @_;
4609: my $currentstring = '';
4610:
4611: $currentstring .=
4612: "\n% &Apache::lonxml::londefdef \n" .
4613: '\documentclass[letterpaper,twoside]{article}\raggedbottom';
4614: if (($env{'form.latex_type'}=~'batchmode') ||
4615: (!$env{'request.role.adv'}) ||
4616: ($mode eq 'batchmode')) {$currentstring .='\batchmode';}
4617: $currentstring .= '\newcommand{\keephidden}[1]{}'.
4618: '\renewcommand{\deg}{$^{\circ}$}'.
4619: '\usepackage{multirow}'."\n".
4620: '\usepackage{longtable}'."\n".
4621: '\usepackage{textcomp}'."\n".
4622: '\usepackage{makeidx}'."\n".
4623: '\usepackage[dvips]{graphicx}'."\n".
4624: '\usepackage{wrapfig}'."\n".
4625: '\usepackage{picins}'."\n".
4626: '\usepackage[T1]{fontenc}'."\n".
4627: '\usepackage{lmodern}'."\n".
4628: '\usepackage[postscript]{ucs}'."\n".
4629: '\usepackage[utf8x]{inputenc}'."\n".
4630: '\usepackage{pifont}'."\n".
4631: '\usepackage{latexsym}'."\n".
4632: '\usepackage{epsfig}'."\n".
4633: '\usepackage{xtab}'."\n".
4634: '\usepackage{tabularx}'."\n".
4635: '\usepackage{booktabs}'."\n".
4636: '\usepackage{array}'."\n".
4637: '\usepackage{colortbl}'."\n".
4638: '\usepackage{xcolor}'."\n".
4639: '\usepackage{calc}'."\n".
4640: '\usepackage{amsmath}'."\n".
4641: '\usepackage{soul}'."\n".
4642: '\usepackage{amssymb}'."\n".
4643: '\usepackage{amsfonts}'."\n".
4644: '\usepackage{amsthm}'."\n".
4645: '\usepackage{amscd}'."\n".
4646: '\usepackage{actuarialangle}'."\n";
4647: if($env{'form.pdfFormFields'} eq 'yes') {
4648: $currentstring .= '\usepackage{hyperref}'.
4649: '\usepackage{eforms}'.
4650: '\usepackage{tabularx}';
4651: }
4652:
4653: $currentstring .= '\newenvironment{choicelist}{\begin{list}{}{\setlength{\rightmargin}{0in}\setlength{\leftmargin}{0.13in}\setlength{\topsep}{0.05in}\setlength{\itemsep}{0.022in}\setlength{\parsep}{0in}\setlength{\belowdisplayskip}{0.04in}\setlength{\abovedisplayskip}{0.05in}\setlength{\abovedisplayshortskip}{-0.04in}\setlength{\belowdisplayshortskip}{0.04in}}}{\end{list}}'.
4654: '\renewenvironment{theindex}{\begin{list}{}{{\vskip 1mm \noindent \large\textbf{Index}} \newline \setlength{\rightmargin}{0in}\setlength{\leftmargin}{0.13in}\setlength{\topsep}{0.01in}\setlength{\itemsep}{0.1in}\setlength{\parsep}{-0.02in}\setlength{\belowdisplayskip}{0.01in}\setlength{\abovedisplayskip}{0.01in}\setlength{\abovedisplayshortskip}{-0.04in}\setlength{\belowdisplayshortskip}{0.01in}}}{\end{list}}';
4655: $currentstring .= '\begin{document}';
4656:
4657: return $currentstring;
4658:
4659: }
4660:
4661: sub clean_docs_httpref {
4662: my ($href,$docuri,$cdom,$cnum) = @_;
4663: if ($docuri eq '') {
4664: $docuri = &Apache::lonnet::hreflocation('',$env{'request.filename'});
4665: }
4666: if ($cdom eq '') {
4667: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
4668: }
4669: if ($cnum eq '') {
4670: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
4671: }
4672: my $cleanhref;
4673: if ($docuri =~ m{^(\Q/uploaded/$cdom/$cnum/\E(?:docs|supplemental)/)(.+/)[^/]+$}) {
4674: my $prefix = $1;
4675: my $relpath = $2;
4676: my ($hrefpath,$fname);
4677: if ($href =~ m{^/}) {
4678: if ($href =~ m{^\Q$prefix\E(.+/)([^/]+)$}) {
4679: $hrefpath = $1;
4680: $fname = $2;
4681: } else {
4682: return $cleanhref;
4683: }
4684: } else {
4685: if ($href =~ m{/}) {
4686: (my $path,$fname) = ($href =~ m{^(.*)/([^/]*)$});
4687: $hrefpath = $relpath.$path;
4688: if ($path eq '') {
4689: $hrefpath =~ s{/$}{};
4690: }
4691: } else {
4692: $fname = $href;
4693: $hrefpath = $relpath;
4694: $hrefpath =~ s{/$}{};
4695: }
4696: }
4697: if ($fname ne '') {
4698: my $cleanrelpath;
4699: foreach my $dir (split(/\//,$hrefpath)) {
4700: next if ($dir eq '.');
4701: if ($dir eq '..') {
4702: $cleanrelpath =~ s{([^/]+/)$}{};
4703: } else {
4704: $cleanrelpath .= $dir.'/';
4705: }
4706: }
4707: if ($cleanrelpath ne '') {
4708: $cleanhref = $prefix.$cleanrelpath.$fname;
4709: } else {
4710: $cleanhref = $prefix.$fname;
4711: }
4712: }
4713: }
4714: return $cleanhref;
4715: }
4716:
4717: # This is retrieving a CSS property from the style attribute of the current element.
4718: # It is not checking <style> elements or linked stylesheets yet.
4719: sub get_css_property {
4720: my ($property,$parstack,$safeeval) = @_;
4721: my $style=&Apache::lonxml::get_param('style',$parstack,$safeeval,undef,1);
4722: my @style_components=split(/;/,$style);
4723: foreach my $css_pair (@style_components) {
4724: my ($name, $value) = split(/:/, $css_pair);
4725: $name =~ s/^\s+|\s+$//g;
4726: $value =~ s/^\s+|\s+$//g;
4727: if ($name eq $property) {
4728: return $value;
4729: }
4730: }
4731: return undef;
4732: }
4733:
4734: =pod
4735:
4736: =head1 NAME
4737:
4738: Apache::londefdef.pm
4739:
4740: =head1 SYNOPSIS
4741:
4742: Tags Default Definition Module
4743:
4744: This is part of the LearningOnline Network with CAPA project
4745: described at http://www.lon-capa.org.
4746:
4747:
4748: =head1 NOTABLE SUBROUTINES
4749:
4750: =over
4751:
4752: =item start_hideweboutput()
4753:
4754: =item end_hideweboutput()
4755:
4756: =item image_replication()
4757:
4758: =item resize_image()
4759:
4760: Get correct sizing parameter for an image given
4761: it's initial ht. and wid. This allows sizing of
4762: images that are generated on-the-fly (e.g. gnuplot)
4763: as well as serving as a utility for image_size.
4764:
4765: Parameter:
4766: height_param
4767: width_param - Initial picture dimensions.
4768: scaling - A scale factor.
4769: parstack, - the current stack of tag attributes
4770: from the xml parser
4771: safeeval, - pointer to the safespace
4772: depth, - from what level in the stack to look for attributes
4773: (assumes -1 if unspecified)
4774: cis - look for attrubutes case insensitively
4775: (assumes false)
4776:
4777: Returns:
4778: height, width - new dimensions.
4779:
4780: =item image_size()
4781:
4782: =item image_width()
4783:
4784: =item image_height()
4785:
4786: =item get_eps_image()
4787:
4788: =item eps_generation()
4789:
4790: =item file_path()
4791:
4792: =item recalc()
4793:
4794: Converts a measurement in to mm from any of
4795: the other valid LaTeX units of measure.
4796: If the units of measure are missing from the
4797: parameter, it is assumed to be in and returned
4798: with mm units of measure
4799:
4800: =item LATEX_length()
4801:
4802: =item align_latex_image()
4803:
4804: Wrap image 'stuff' inside of the LaTeX required to implement
4805: alignment:
4806: align_tex_image(align, latex_rendering, image)
4807: Where:
4808: align - The HTML alignment specification.
4809: latex_rendering - rendering hint for latex.
4810: image - The LaTeX needed to insert the image itsef.
4811: width,height - dimensions of the image.
4812: Returns:
4813: The 1/2 wrapped image and the stuff required to close the
4814: wrappage. This allows e.g. randomlabel to insert more stuff
4815: into the closure.
4816:
4817:
4818: =item is_inside_of($tagstack, $tag)
4819: This sub returns true if the current state of Xml processing is inside of the tag.
4820: Parameters:
4821: tagstack - The tagstack from the parser.
4822: tag - The tag (without the <>'s.).
4823: Sample usage:
4824: if (is_inside_of($tagstack "table")) {
4825: I'm in a table....
4826: }
4827:
4828: =item clean_docs_httpref($href,$docuri,$cdom,$cnum)
4829: HTML pages uploaded to a course which contain dependencies either from iframes,
4830: javascript files or objects (FlashPlayerSwf, MediaSrc, XMPSrc, ConfigurationSrc,
4831: and PosterImageSrc) for which dependency is another file uploaded to the same
4832: course.
4833:
4834: Required input:
4835: href - dependency (either a relative URL, or an absolute URL)
4836: Optional inputs:
4837: docuri - URL of HTML page containing the dependency
4838: cdom - Course domain
4839: cnum - CourseID
4840:
4841: Output:
4842: returns an absolute URL constructed from the href provided, and the calling context.
4843: (this will be null, if the URL does not begin: /uploaded/$cdom/$cnum/docs/ or
4844: /uploaded/$cdom/$cnum/supplemental/).
4845:
4846: =back
4847:
4848: =cut
4849:
4850:
4851: 1;
4852: __END__
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