1: # The LearningOnline Network with CAPA
2: # Tags Default Definition Module
3: #
4: # $Id: londefdef.pm,v 1.451 2014/05/15 20:19:06 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: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
96: if ($eval eq 'on') {
97: $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
98: #&Apache::lonxml::debug("M is evaluated to:$inside:");
99: }
100: my $tex = $inside;
101: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
102: $currentstring = &Apache::lontexconvert::converted(\$inside,$display);
103: if ($Apache::lontexconvert::errorstring) {
104: my $errormsg='<pre>'.&HTML::Entities::encode($Apache::lontexconvert::errorstring,'<>&"').'</pre> occurred while attempting to convert this TeX: <pre>';
105: $tex = &HTML::Entities::encode($tex,'<>&"');
106: my ($linenumber) =
107: ($Apache::lontexconvert::errorstring =~ /Line (\d+)/);
108: if (defined($linenumber)) {
109: my @tex=split("\n",$tex);
110: $tex[$linenumber]='<b><font color="red">'.
111: $tex[$linenumber].'</font></b>';
112: $tex=join("\n",@tex);
113: }
114: &Apache::lonxml::warning($errormsg.$tex.'</pre>');
115: $Apache::lontexconvert::errorstring='';
116: }
117: #&Apache::lonxml::debug("M is ends with:$currentstring:");
118: $Apache::lonxml::post_evaluate=0;
119: } elsif ($target eq 'tex') {
120:
121: $currentstring = $inside;
122: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
123: if ($eval eq 'on') {
124: $currentstring=&Apache::run::evaluate($currentstring,$safeeval,$$parstack[-1]);
125: }
126: if ($currentstring=~/^(\s*\\\\\s*)*$/) {$currentstring = ' \vskip 0 mm ';}
127: # detect simple math mode entry exits, and convert them
128: # to use \ensuremath ... unless there's a \verb inside.
129: if (! ($currentstring=~/\\verb/)) {
130: if ($currentstring=~/^\s*\$[^\$].*\$\s*$/) {
131: $currentstring=~s/^(\s*)\$/$1/;
132: $currentstring=~s/\$(\s*)$/$1/;
133: $currentstring='\ensuremath{'.$currentstring.'}';
134: }
135: }
136: $Apache::lonxml::post_evaluate=0;
137: }
138: return $currentstring;
139: }
140:
141: sub end_m {
142: my ($target,$token) = @_;
143: my $currentstring = '';
144: if ($target eq 'tex') {
145: $currentstring = "";
146: }
147: return $currentstring;
148: }
149:
150: sub start_tthoption {
151: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
152: my $result;
153: if ($target eq 'web' || $target eq 'webgrade') {
154: my $inside = &Apache::lonxml::get_all_text("/tthoption",$parser,
155: $style);
156: $inside=~s/^\s*//;
157: if ($env{'browser.mathml'}) {
158: &tth::ttmoptions($inside);
159: } else {
160: &tth::tthoptions($inside);
161: }
162: }
163: return $result;
164: }
165:
166: sub end_tthoption {
167: my ($target,$token) = @_;
168: my $result;
169: return $result;
170: }
171:
172: #-- <html> tag (end tag optional)
173: sub start_html {
174: my ($target,$token) = @_;
175: my $currentstring = '';
176: if ($target eq 'web' || $target eq 'edit' || $target eq 'webgrade' ) {
177: # start_body() takes care of emitting the <html>
178: } elsif ($target eq 'tex') {
179:
180: $currentstring .= &latex_header();
181: }
182: return $currentstring;
183: }
184:
185: sub end_html {
186: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
187: my $currentstring = '';
188: if ($target eq 'web' || $target eq 'webgrade') {
189: # end_body takes care of the </html>
190: }
191: return $currentstring;
192: }
193:
194: #-- <head> tag (end tag optional)
195: sub start_head {
196: my ($target,$token) = @_;
197: my $currentstring = '';
198: if ($target eq 'web' || $target eq 'webgrade') {
199: &Apache::lonxml::startredirection();
200: }
201: return $currentstring;
202: }
203:
204: sub end_head {
205: my ($target,$token) = @_;
206: my $currentstring = '';
207: if (($target eq 'web' && $env{'request.state'} eq 'published') ||
208: ($target eq 'webgrade' && $env{'request.state'} eq 'published')) {
209: # in case there is a </head> but no <head>
210: if ($Apache::lonxml::redirection) {
211: $Apache::londefdef::head = &Apache::lonxml::endredirection();
212: }
213: }
214: return $currentstring;
215: }
216:
217: #-- <map> tag (end tag required)
218: sub start_map {
219: my ($target,$token) = @_;
220: my $currentstring = '';
221: if ($target eq 'web' || $target eq 'webgrade') {
222: $currentstring = $token->[4];
223: }
224: return $currentstring;
225: }
226:
227: sub end_map {
228: my ($target,$token) = @_;
229: my $currentstring = '';
230: if ($target eq 'web' || $target eq 'webgrade') {
231: $currentstring = $token->[2];
232: }
233: return $currentstring;
234: }
235:
236: #-- <select> tag (end tag required)
237: sub start_select {
238: my ($target,$token) = @_;
239: my $currentstring = '';
240: if ($target eq 'web' || $target eq 'webgrade') {
241: $currentstring = $token->[4];
242: } elsif ($target eq 'tex') {
243: $Apache::londefdef::select=0;
244: }
245: return $currentstring;
246: }
247:
248: sub end_select {
249: my ($target,$token) = @_;
250: my $currentstring = '';
251: if ($target eq 'web' || $target eq 'webgrade') {
252: $currentstring = $token->[2];
253: }
254: return $currentstring;
255: }
256:
257: #-- <option> tag (end tag optional)
258: sub start_option {
259: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
260: my $currentstring = '';
261: if ($target eq 'web' || $target eq 'webgrade') {
262: $currentstring = $token->[4];
263: } elsif ($target eq 'tex') {
264: $Apache::londefdef::select++;
265: if ($Apache::londefdef::select == 1) {
266: $currentstring='\noindent\fbox{'.&Apache::lonxml::get_param('value',$parstack,$safeeval).'}\keephidden{';
267: } else {
268: $currentstring='\keephidden{';
269: }
270: }
271: return $currentstring;
272: }
273:
274: sub end_option {
275: my ($target,$token) = @_;
276: my $currentstring = '';
277: if ($target eq 'web' || $target eq 'webgrade') {
278: $currentstring = $token->[2];
279: } elsif ($target eq 'tex') {
280: $currentstring='}';
281: }
282: return $currentstring;
283: }
284:
285: #-- <input> tag (end tag forbidden)
286: sub start_input {
287: my ($target,$token) = @_;
288: my $currentstring = '';
289: if ($target eq 'web' || $target eq 'webgrade') {
290: $currentstring = $token->[4];
291: }
292: return $currentstring;
293: }
294:
295: sub end_input {
296: my ($target,$token) = @_;
297: my $currentstring = '';
298: if ($target eq 'web' || $target eq 'webgrade') {
299: $currentstring = $token->[2];
300: }
301: return $currentstring;
302: }
303:
304: #-- <textarea> tag (end tag required)
305: sub start_textarea {
306: my ($target,$token) = @_;
307: my $currentstring = '';
308: if ($target eq 'web' || $target eq 'webgrade') {
309: $currentstring = $token->[4];
310: }
311: return $currentstring;
312: }
313:
314: sub end_textarea {
315: my ($target,$token) = @_;
316: my $currentstring = '';
317: if ($target eq 'web' || $target eq 'webgrade') {
318: $currentstring = $token->[2];
319: }
320: return $currentstring;
321: }
322:
323: #-- <form> tag (end tag required)
324: sub start_form {
325: my ($target,$token) = @_;
326: my $currentstring = '';
327: if ($target eq 'web' || $target eq 'webgrade') {
328: $currentstring = $token->[4];
329: }
330: return $currentstring;
331: }
332:
333: sub end_form {
334: my ($target,$token) = @_;
335: my $currentstring = '';
336: if ($target eq 'web' || $target eq 'webgrade') {
337: $currentstring = $token->[2];
338: }
339: return $currentstring;
340: }
341:
342: #-- <title> tag (end tag required)
343: sub start_title {
344: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
345: my $currentstring = '';
346: if ($target eq 'web' || $target eq 'webgrade') {
347: $Apache::londefdef::title =
348: &Apache::lonxml::get_all_text('/title',$parser,$style);
349: } elsif ($target eq 'tex') {
350: $currentstring .= '\keephidden{Title of the document: '
351: }
352: if ($target eq 'meta') {
353: $currentstring='<title>';
354: &start_output($target);
355: }
356: return $currentstring;
357: }
358:
359: sub end_title {
360: my ($target,$token) = @_;
361: my $currentstring = '';
362: if ($target eq 'web' || $target eq 'webgrade') {
363: # start_title takes care of swallowing the title
364: } elsif ($target eq 'tex') {
365: $currentstring .= '}';
366: }
367: if ($target eq 'meta') {
368: &end_output($target);
369: $currentstring='</title>';
370: }
371: return $currentstring;
372: }
373:
374: #-- <meta> tag (end tag forbidden)
375: sub start_meta {
376: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
377: my $currentstring = '';
378: if ($target eq 'web' || $target eq 'webgrade') {
379: my $args='';
380: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
381: if ($args eq '') {
382: &Apache::lonxml::get_all_text("/meta",$parser,$style);
383: } else {
384: $currentstring = $token->[4];
385: }
386: if ($env{'form.grade_imsexport'}) {
387: $currentstring = '';
388: }
389: } elsif ($target eq 'meta') {
390: unless (&Apache::lonxml::get_param
391: ('http-equiv',$parstack,$safeeval,undef,1)) {
392: my $name=$token->[2]->{'name'};
393: $name=~tr/A-Z/a-z/;
394: $name=~s/\s/\_/gs;
395: $name=~s/\W//gs;
396: if ($name) {
397: $currentstring='<'.$name;
398: my $display=&Apache::lonxml::get_param
399: ('display',$parstack,$safeeval,undef,1);
400: if ($display) {
401: $display=~s/\"/\'/g;
402: $currentstring.=' display="'.$display.'"';
403: }
404: $currentstring.='>'.
405: &Apache::lonxml::get_param
406: ('content',$parstack,$safeeval,undef,1).
407: '</'.$name.'>';
408: }
409: my $display=&Apache::lonxml::get_param
410: ('display',$parstack,$safeeval,undef,1);
411: if ($display) {
412: $display=&HTML::Entities::encode($display,'<>&"');
413: $currentstring.='<'.$name.'.display>'.$display.
414: '</'.$name.'.display>';
415: }
416: }
417: } elsif ($target eq 'tex') {
418: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
419: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
420: if ((not defined $content) && (not defined $name)) {
421: &Apache::lonxml::startredirection();
422: }
423: } elsif ($target eq 'edit') {
424: $currentstring .= &Apache::edit::tag_start($target,$token);
425: $currentstring .= &Apache::edit::text_arg('Name:','name',$token,30);
426: $currentstring .= &Apache::edit::text_arg('Content:','content',$token,70);
427: $currentstring .= &Apache::edit::end_row();
428: } elsif ($target eq 'modified') {
429: my $constructtag =
430: &Apache::edit::get_new_args($token,$parstack,$safeeval,
431: 'name','content');
432: if ($constructtag) { $currentstring = &Apache::edit::rebuild_tag($token); }
433: }
434: return $currentstring;
435: }
436:
437: sub end_meta {
438: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
439: my $currentstring = '';
440: if ($target eq 'web' || $target eq 'webgrade') {
441: my $args='';
442: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
443: if ($args ne '') {
444: $currentstring = $token->[4];
445: }
446: } elsif ($target eq 'tex') {
447: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
448: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
449: if ((not defined $content) && (not defined $name)) {
450: &Apache::lonxml::endredirection();
451: }
452: }
453: return $currentstring;
454: }
455:
456: sub insert_meta {
457: return '
458: <meta />';
459: }
460:
461: #-- <start> tag
462: sub start_style {
463: my ($target, $token, $tagstack, $parstack, $parser, $safeeval, $style) = @_;
464: my $currentstring = '';
465:
466: if ($target eq 'tex') {
467: Apache::lonxml::startredirection();
468: } else {
469: $currentstring = $token->[4];
470: }
471:
472: return $currentstring;
473: }
474:
475: sub end_style {
476: my ($target, $token, $tagstack, $parstack, $parser, $safeeval) = @_;
477: my $currentstring = '';
478:
479: if ($target eq 'tex') {
480: Apache::lonxml::endredirection();
481: } else {
482: $currentstring = $token->[2];
483: }
484: return $currentstring;
485: }
486:
487: # accessrule
488: sub start_accessrule {
489: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
490: my $currentstring = '';
491: my $eff =&Apache::lonxml::get_param('effect',$parstack,$safeeval,undef,1);
492: my $realm=&Apache::lonxml::get_param('realm', $parstack,$safeeval,undef,1);
493: my $role =&Apache::lonxml::get_param('role', $parstack,$safeeval,undef,1);
494: my $type =&Apache::lonxml::get_param('type', $parstack,$safeeval,undef,1);
495:
496: my ($dom,$crs,$sec,$separator);
497: if ($type eq 'user') {
498: ($dom,$crs,$sec)=split(m{/},$realm);
499: $crs = &LONCAPA::clean_username($crs);
500: $separator = '/';
501: } else {
502: ($dom,$crs,$sec)=split(/\_/,$realm);
503: $crs = &LONCAPA::clean_courseid($crs);
504: $separator = '_';
505: }
506: $dom = &LONCAPA::clean_domain($dom);
507:
508: $sec =~s/\W//;
509: $realm = $dom;
510: if ($crs =~ /\S/) { $realm .= $separator.$crs; }
511: if ($sec =~ /\S/) { $realm .= $separator.$sec; }
512: $role=~s/\W//g;
513:
514: if ($target eq 'web') {
515: my $args='';
516: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
517: if ($args eq '') {
518: &Apache::lonxml::get_all_text("/accessrule",$parser,$style);
519: } else {
520: $currentstring = $token->[4];
521: }
522: }
523: if ($target eq 'meta') {
524: $currentstring='<rule>'.$eff.':'.$realm.':'.$role.':'.$type.'</rule>';
525: }
526: return $currentstring;
527: }
528:
529: sub end_accessrule {
530: my ($target,$token,$tagstack,$parstack,$parser) = @_;
531: my $currentstring = '';
532: if ($target eq 'web') {
533: my $args='';
534: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
535: if ($args ne '') {
536: $currentstring = $token->[4];
537: }
538: }
539: return $currentstring;
540: }
541:
542: sub generate_css_links {
543: my $links;
544: my $css_href = &Apache::lonnet::EXT('resource.0.cssfile');
545: if ($css_href =~ /\S/) {
546: &Apache::lonxml::extlink($css_href);
547: $links .=
548: '<link rel="stylesheet" type="text/css" href="'.$css_href.'" />';
549: }
550: return $links;
551: }
552:
553: #-- <body> tag (end tag required)
554: sub start_body {
555: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
556: my $currentstring = '';
557:
558: if ($target eq 'web' || $target eq 'webgrade') {
559: if ($Apache::lonhomework::parsing_a_problem) {
560: &Apache::lonxml::warning("<body> tag found inside of <problem> tag this can cause problems.");
561: return '';
562: }
563:
564: if (&is_inside_of($tagstack, "head")) {
565: &end_head(@_);
566: }
567:
568: my $extra_head = &generate_css_links();
569:
570: # Breadcrumbs
571: &Apache::lonhtmlcommon::clear_breadcrumbs();
572: if ($env{'request.state'} eq 'construct') {
573: my $url=&Apache::lonnet::hreflocation('',$env{'request.filename'});
574: &Apache::lonhtmlcommon::add_breadcrumb({
575: 'text' => 'Authoring Space',
576: 'href' => &Apache::loncommon::authorspace($url),
577: });
578: &Apache::lonhtmlcommon::add_breadcrumb({
579: 'text' => 'HTML Editor',
580: 'href' => '',
581: });
582: # breadcrumbs (and tools) will be created
583: # in start_page->bodytag->innerregister
584: } else {
585: # FIXME Where are we?
586: }
587:
588: my $args = {'add_entries' => $token->[2],
589: 'force_register' => 1,};
590: if ($target eq 'web') {
591: $args->{'print_suppress'} = 1;
592: }
593: $currentstring =
594: &Apache::loncommon::start_page($Apache::londefdef::title,
595: $Apache::londefdef::head
596: .$extra_head,$args);
597: my $header = '';
598: if ($env{'request.state'} ne 'published' &&
599: $env{'request.state'} ne 'construct') {
600: $header=&Apache::lonmenu::constspaceform();
601: }
602: if ($env{'request.state'} ne 'published') {
603: unless ($env{'form.inhibitmenu'} eq 'yes') {
604: $header.=&edit_controls();
605: }
606: }
607: if ($env{'request.state'} eq 'construct') {
608: unless ($env{'form.inhibitmenu'} eq 'yes') {
609: $currentstring.=&Apache::loncommon::head_subbox(
610: &Apache::loncommon::CSTR_pageheader()
611: .$header);
612: }
613: } elsif ($env{'request.state'} eq 'edit') {
614: $currentstring.=&Apache::loncommon::head_subbox($header);
615: }
616: $currentstring.=&Apache::lonxml::message_location();
617: } elsif ($target eq 'tex') {
618: $currentstring = ''; # '\begin{document}' is in header.
619: }
620:
621: return $currentstring;
622: }
623:
624: sub edit_controls {
625: my ($nochgview) = @_;
626: my $result .= '
627: <form method="post" action="">
628: <div class="LC_edit_problem_header">';
629: unless ($nochgview) {
630: $result .= '
631: <div class="LC_edit_problem_header_row1">'.
632: &Apache::lonxml::renderingoptions().'
633: <input type="submit" name="changeproblemmode" value="'.&mt('Change View').'" />
634: </div>';
635: }
636: $result .= '
637: <div><input type="submit" name="editmode" accesskey="e" value="'.&mt('Edit').'" />';
638: if (($env{'request.course.id'}) && ($env{'form.forceedit'})) {
639: my $url=&Apache::lonnet::hreflocation('',$env{'request.filename'});
640: if ($url =~ /\.html?$/i) {
641: my ($cdom,$cnum);
642: if ($env{'request.course.id'}) {
643: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
644: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
645: if ($env{'request.filename'} =~ m{/userfiles/supplemental/default|\d+/}) {
646: if (&Apache::lonnet::is_course_upload($env{'request.filename'},
647: $cnum,$cdom)) {
648: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
649: ['folderpath','title']);
650: }
651: }
652: }
653: my ($symb,$itemtitle,$displayfile,$caller);
654: if ($url =~ m{^/uploaded/$cdom/$cnum/portfolio/syllabus/}) {
655: $itemtitle = &mt('Syllabus');
656: $caller = "/public/$cdom/$cnum/syllabus";
657: } else {
658: $caller = $url;
659: ($symb,$itemtitle,$displayfile) =
660: &Apache::lonxml::get_courseupload_hierarchy($url,
661: $env{'form.folderpath'},
662: $env{'form.title'});
663: }
664: if (($symb ne '') || ($env{'httpref.'.$url} ne '') ||
665: ($url =~ m{^/uploaded/$cdom/$cnum/portfolio/syllabus/})) {
666: $result .= (' ' x 3).
667: &Apache::lonhtmlcommon::dependencies_button()."\n".
668: &Apache::lonhtmlcommon::dependencycheck_js($symb,
669: $itemtitle,$url,$env{'form.folderpath'},$caller)."\n";
670: }
671: }
672: }
673: $result .= '</div>
674: </div>
675: </form>
676: ';
677: return $result;
678: }
679:
680: sub end_body {
681: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
682: my $currentstring = &end_p(); # Close off unclosed <p>
683: if ($target eq 'web' || $target eq 'webgrade') {
684: $currentstring .= &Apache::loncommon::end_page({'discussion' => 1});
685: } elsif ($target eq 'tex') {
686: $currentstring .= '\strut\newline\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\newline\noindent \end{document}';
687: }
688: return $currentstring;
689: }
690:
691: # \begin{center} causes a new paragprah spacing that looks odd inside
692: # of a table cell. Same at the end of a \center but with a slightly
693: # larger space .. hence center_correction and center_end_correction.
694: #
695: sub center_correction { return '\vspace*{-6 mm}'; }
696: sub center_end_correction { return '\vspace*{-7 mm}'; }
697:
698: #-- <center> tag (end tag required)
699: sub start_center {
700: my ($target,$token,$tagstack) = @_;
701: my $currentstring = &end_p(); # Close off any prior para.
702: if ($target eq 'web' || $target eq 'webgrade') {
703: $currentstring .= $token->[4];
704: } elsif ($target eq 'tex') {
705: if (&is_inside_of($tagstack, "table")) {
706: $currentstring .= ¢er_correction();
707: }
708: $currentstring .= '\begin{center}';
709: }
710: return $currentstring;
711: }
712:
713: sub end_center {
714: my ($target,$token,$tagstack) = @_;
715: my $currentstring = '';
716: if ($target eq 'web' || $target eq 'webgrade') {
717: $currentstring = $token->[2];
718: } elsif ($target eq 'tex') {
719: $currentstring = '\end{center}';
720: if (&is_inside_of($tagstack, "table")) {
721: $currentstring .= ¢er_end_correction();
722: }
723: }
724: return $currentstring;
725: }
726:
727: #-- <b> tag (end tag required)
728: # NOTE: In TeX mode disables internal <p>
729: sub start_b {
730: my ($target,$token) = @_;
731: my $currentstring = '';
732: if ($target eq 'web' || $target eq 'webgrade') {
733: $currentstring = $token->[4];
734: } elsif ($target eq 'tex') {
735: &disable_para();
736: $currentstring .= '\textbf{';
737: }
738: return $currentstring;
739: }
740:
741: sub end_b {
742: my ($target,$token) = @_;
743: my $currentstring = '';
744: if ($target eq 'web' || $target eq 'webgrade') {
745: $currentstring = $token->[2];
746: } elsif ($target eq 'tex') {
747: &enable_para();
748: $currentstring = '}';
749: }
750: return $currentstring;
751: }
752:
753: #-- <strong> tag (end tag required)
754: # NOTE: in TeX mode disables internal <p>
755: sub start_strong {
756: my ($target,$token) = @_;
757: my $currentstring = '';
758: if ($target eq 'web' || $target eq 'webgrade') {
759: $currentstring = $token->[4];
760: } elsif ($target eq 'tex') {
761: &disable_para();
762: $currentstring = '\textbf{';
763: }
764: return $currentstring;
765: }
766:
767: sub end_strong {
768: my ($target,$token) = @_;
769: my $currentstring = '';
770: if ($target eq 'web' || $target eq 'webgrade') {
771: $currentstring = $token->[2];
772: } elsif ($target eq 'tex') {
773: &enable_para();
774: $currentstring = '}';
775: }
776: return $currentstring;
777: }
778:
779: #-- <h1> tag (end tag required)
780: sub start_h1 {
781: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
782: my $currentstring = &end_p(); # Close off any prior para.
783: if ($target eq 'web' || $target eq 'webgrade') {
784: $currentstring .= $token->[4];
785: } elsif ($target eq 'tex') {
786: my $pre;
787: my $align=lc(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1));
788: if ($align eq 'center') {
789: $pre='\begin{center}';
790: } elsif ($align eq 'left') {
791: $pre='\rlap{';
792: } elsif ($align eq 'right') {
793: $pre=' \hfill \llap{';
794: }
795: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
796: if (not defined $TeXsize) {$TeXsize="large";}
797: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
798: } elsif ($target eq 'meta') {
799: $currentstring.='<subject>';
800: &start_output($target);
801: }
802: return $currentstring;
803: }
804:
805: sub end_h1 {
806: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
807: my $currentstring = '';
808: if ($target eq 'web' || $target eq 'webgrade') {
809: $currentstring .= $token->[2];
810: } elsif ($target eq 'tex') {
811: my $post='\vskip 0 mm ';
812: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
813: if ($align eq 'center') {
814: $post='\end{center}';
815: } elsif ($align eq 'left') {
816: $post='} \hfill'.'\vskip 0 mm ';
817: } elsif ($align eq 'right') {
818: $post='}'.'\vskip 0 mm ';
819: }
820: $currentstring .= '}}'.$post;
821: } elsif ($target eq 'meta') {
822: &end_output($target);
823: $currentstring='</subject>';
824: }
825: return $currentstring;
826: }
827:
828: #-- <h2> tag
829: sub start_h2 {
830: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
831: my $currentstring = &end_p(); # Close off any prior para.
832: if ($target eq 'web' || $target eq 'webgrade') {
833: $currentstring .= $token->[4];
834: } elsif ($target eq 'tex') {
835: my $pre;
836: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
837: if ($align eq 'center') {
838: $pre='\begin{center}';
839: } elsif ($align eq 'left') {
840: $pre='\rlap{';
841: } elsif ($align eq 'right') {
842: $pre=' \hfill \llap{';
843: }
844: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
845: if (not defined $TeXsize) {$TeXsize="large";}
846: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
847: }
848: return $currentstring;
849: }
850:
851: sub end_h2 {
852: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
853: my $currentstring = '';
854: if ($target eq 'web' || $target eq 'webgrade') {
855: $currentstring .= $token->[2];
856: } elsif ($target eq 'tex') {
857: my $post='\vskip 0 mm ';
858: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
859: if ($align eq 'center') {
860: $post='\end{center}';
861: } elsif ($align eq 'left') {
862: $post='} \hfill'.'\vskip 0 mm ';
863: } elsif ($align eq 'right') {
864: $post='}'.'\vskip 0 mm ';
865: }
866: $currentstring .= '}}'.$post;
867: }
868: return $currentstring;
869: }
870:
871: #-- <h3> tag
872: sub start_h3 {
873: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
874: my $currentstring = &end_p(); # Close off any prior para.
875: if ($target eq 'web' || $target eq 'webgrade') {
876: $currentstring .= $token->[4];
877: } elsif ($target eq 'tex') {
878: my $pre;
879: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
880: if ($align eq 'center') {
881: $pre='\begin{center}';
882: } elsif ($align eq 'left') {
883: $pre='\rlap{';
884: } elsif ($align eq 'right') {
885: $pre=' \hfill \llap{';
886: }
887: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
888: if (not defined $TeXsize) {$TeXsize="large";}
889: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
890: }
891: return $currentstring;
892: }
893:
894: sub end_h3 {
895: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
896: my $currentstring = '';
897: if ($target eq 'web' || $target eq 'webgrade') {
898: $currentstring .= $token->[2];
899: } elsif ($target eq 'tex') {
900: my $post='\vskip 0 mm ';
901: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
902: if ($align eq 'center') {
903: $post='\end{center}';
904: } elsif ($align eq 'left') {
905: $post='} \hfill'.'\vskip 0 mm ';
906: } elsif ($align eq 'right') {
907: $post='}'.'\vskip 0 mm ';
908: }
909: $currentstring .= '}}'.$post;
910: }
911: return $currentstring;
912: }
913:
914: #-- <h4> tag
915: sub start_h4 {
916: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
917: my $currentstring = &end_p(); # Close off any prior para.
918: if ($target eq 'web' || $target eq 'webgrade') {
919: $currentstring .= $token->[4];
920: } elsif ($target eq 'tex') {
921: my $pre;
922: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
923: if ($align eq 'center') {
924: $pre='\begin{center}';
925: } elsif ($align eq 'left') {
926: $pre='\rlap{';
927: } elsif ($align eq 'right') {
928: $pre=' \hfill \llap{';
929: }
930: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
931: if (not defined $TeXsize) {$TeXsize="large";}
932: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
933: }
934: return $currentstring;
935: }
936:
937: sub end_h4 {
938: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
939: my $currentstring = '';
940: if ($target eq 'web' || $target eq 'webgrade') {
941: $currentstring .= $token->[2];
942: } elsif ($target eq 'tex') {
943: my $post='\vskip 0 mm ';
944: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
945: if ($align eq 'center') {
946: $post='\end{center}';
947: } elsif ($align eq 'left') {
948: $post='} \hfill'.'\vskip 0 mm ';
949: } elsif ($align eq 'right') {
950: $post='}'.'\vskip 0 mm ';
951: }
952: $currentstring .= '}}'.$post;
953: }
954: return $currentstring;
955: }
956:
957: #-- <h5> tag
958: sub start_h5 {
959: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
960: my $currentstring = &end_p(); # Close off any prior paras.
961: if ($target eq 'web' || $target eq 'webgrade') {
962: $currentstring .= $token->[4];
963: } elsif ($target eq 'tex') {
964: my $pre;
965: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
966: if ($align eq 'center') {
967: $pre='\begin{center}';
968: } elsif ($align eq 'left') {
969: $pre='\rlap{';
970: } elsif ($align eq 'right') {
971: $pre=' \hfill \llap{';
972: }
973: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
974: if (not defined $TeXsize) {$TeXsize="large";}
975: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
976: }
977: return $currentstring;
978: }
979:
980: sub end_h5 {
981: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
982: my $currentstring = '';
983: if ($target eq 'web' || $target eq 'webgrade') {
984: $currentstring .= $token->[2];
985: } elsif ($target eq 'tex') {
986: my $post='\vskip 0 mm ';
987: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
988: if ($align eq 'center') {
989: $post='\end{center}';
990: } elsif ($align eq 'left') {
991: $post='} \hfill'.'\vskip 0 mm ';
992: } elsif ($align eq 'right') {
993: $post='}'.'\vskip 0 mm ';
994: }
995: $currentstring .= '}}'.$post;
996: }
997: return $currentstring;
998: }
999:
1000: #-- <h6> tag
1001: sub start_h6 {
1002: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1003: my $currentstring = &end_p(); # Close off any prior paras.
1004: if ($target eq 'web' || $target eq 'webgrade') {
1005: $currentstring .= $token->[4];
1006: } elsif ($target eq 'tex') {
1007: my $pre;
1008: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1009: if ($align eq 'center') {
1010: $pre='\begin{center}';
1011: } elsif ($align eq 'left') {
1012: $pre='\rlap{';
1013: } elsif ($align eq 'right') {
1014: $pre=' \hfill \llap{';
1015: }
1016: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
1017: if (not defined $TeXsize) {$TeXsize="large";}
1018: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1019: }
1020: return $currentstring;
1021: }
1022:
1023: sub end_h6 {
1024: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1025: my $currentstring = '';
1026: if ($target eq 'web' || $target eq 'webgrade') {
1027: $currentstring .= $token->[2];
1028: } elsif ($target eq 'tex') {
1029: my $post='\vskip 0 mm ';
1030: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1031: if ($align eq 'center') {
1032: $post='\end{center}';
1033: } elsif ($align eq 'left') {
1034: $post='} \hfill'.'\vskip 0 mm ';
1035: } elsif ($align eq 'right') {
1036: $post='}'.'\vskip 0 mm ';
1037: }
1038: $currentstring .= '}}'.$post;
1039: }
1040: return $currentstring;
1041: }
1042:
1043: #--- <cite> tag (end tag required)
1044: sub start_cite {
1045: my ($target,$token) = @_;
1046: my $currentstring = '';
1047: if ($target eq 'web' || $target eq 'webgrade') {
1048: $currentstring .= $token->[4];
1049: } elsif ($target eq 'tex') {
1050: $currentstring .= '\textit{';
1051: }
1052: return $currentstring;
1053: }
1054:
1055: sub end_cite {
1056: my ($target,$token) = @_;
1057: my $currentstring = '';
1058: if ($target eq 'web' || $target eq 'webgrade') {
1059: $currentstring .= $token->[2];
1060: } elsif ($target eq 'tex') {
1061: $currentstring .= '}';
1062: }
1063: return $currentstring;
1064: }
1065:
1066: #-- <i> tag (end tag required)
1067: sub start_i {
1068: my ($target,$token) = @_;
1069: my $currentstring = '';
1070: if ($target eq 'web' || $target eq 'webgrade') {
1071: $currentstring .= $token->[4];
1072: } elsif ($target eq 'tex') {
1073: $currentstring .= '\textit{';
1074: }
1075: return $currentstring;
1076: }
1077:
1078: sub end_i {
1079: my ($target,$token) = @_;
1080: my $currentstring = '';
1081: if ($target eq 'web' || $target eq 'webgrade') {
1082: $currentstring .= $token->[2];
1083: } elsif ($target eq 'tex') {
1084: $currentstring .= '}';
1085: }
1086: return $currentstring;
1087: }
1088:
1089: #-- <address> tag (end tag required)
1090: sub start_address {
1091: my ($target,$token) = @_;
1092: my $currentstring = '';
1093: if ($target eq 'web' || $target eq 'webgrade') {
1094: $currentstring .= $token->[4];
1095: } elsif ($target eq 'tex') {
1096: $currentstring .= '\textit{';
1097: }
1098: return $currentstring;
1099: }
1100:
1101: sub end_address {
1102: my ($target,$token) = @_;
1103: my $currentstring = '';
1104: if ($target eq 'web' || $target eq 'webgrade') {
1105: $currentstring .= $token->[2];
1106: } elsif ($target eq 'tex') {
1107: $currentstring .= '}';
1108: }
1109: return $currentstring;
1110: }
1111:
1112: #-- <dfn> tag (end tag required)
1113: sub start_dfn {
1114: my ($target,$token) = @_;
1115: my $currentstring = '';
1116: if ($target eq 'web' || $target eq 'webgrade') {
1117: $currentstring .= $token->[4];
1118: } elsif ($target eq 'tex') {
1119: $currentstring .= '\textit{';
1120: }
1121: return $currentstring;
1122: }
1123:
1124: sub end_dfn {
1125: my ($target,$token) = @_;
1126: my $currentstring = '';
1127: if ($target eq 'web' || $target eq 'webgrade') {
1128: $currentstring .= $token->[2];
1129: } elsif ($target eq 'tex') {
1130: $currentstring .= '}';
1131: }
1132: return $currentstring;
1133: }
1134:
1135: #-- <tt> tag (end tag required)
1136: sub start_tt {
1137: my ($target,$token) = @_;
1138: my $currentstring = '';
1139: if ($target eq 'web' || $target eq 'webgrade') {
1140: $currentstring .= $token->[4];
1141: } elsif ($target eq 'tex') {
1142: $currentstring .= '\texttt{';
1143: }
1144: return $currentstring;
1145: }
1146:
1147: sub end_tt {
1148: my ($target,$token) = @_;
1149: my $currentstring = '';
1150: if ($target eq 'web' || $target eq 'webgrade') {
1151: $currentstring .= $token->[2];
1152: } elsif ($target eq 'tex') {
1153: $currentstring .= '}';
1154: }
1155: return $currentstring;
1156: }
1157:
1158: #-- <kbd> tag (end tag required)
1159: sub start_kbd {
1160: my ($target,$token) = @_;
1161: my $currentstring = '';
1162: if ($target eq 'web' || $target eq 'webgrade') {
1163: $currentstring .= $token->[4];
1164: } elsif ($target eq 'tex') {
1165: $currentstring .= '\texttt{';
1166: }
1167: return $currentstring;
1168: }
1169:
1170: sub end_kbd {
1171: my ($target,$token) = @_;
1172: my $currentstring = '';
1173: if ($target eq 'web' || $target eq 'webgrade') {
1174: $currentstring .= $token->[2];
1175: } elsif ($target eq 'tex') {
1176: $currentstring .= '}';
1177: }
1178: return $currentstring;
1179: }
1180:
1181: #-- <code> tag (end tag required)
1182: sub start_code {
1183: my ($target,$token) = @_;
1184: my $currentstring = '';
1185: if ($target eq 'web' || $target eq 'webgrade') {
1186: $currentstring .= $token->[4];
1187: } elsif ($target eq 'tex') {
1188: $currentstring .= '\texttt{';
1189: }
1190: return $currentstring;
1191: }
1192:
1193: sub end_code {
1194: my ($target,$token) = @_;
1195: my $currentstring = '';
1196: if ($target eq 'web' || $target eq 'webgrade') {
1197: $currentstring .= $token->[2];
1198: } elsif ($target eq 'tex') {
1199: $currentstring .= '}';
1200: }
1201: return $currentstring;
1202: }
1203:
1204: #-- <em> tag (end tag required)
1205: sub start_em {
1206: my ($target,$token) = @_;
1207: my $currentstring = '';
1208: if ($target eq 'web' || $target eq 'webgrade') {
1209: $currentstring .= $token->[4];
1210: } elsif ($target eq 'tex') {
1211: $currentstring .= '\emph{';
1212: }
1213: return $currentstring;
1214: }
1215:
1216: sub end_em {
1217: my ($target,$token) = @_;
1218: my $currentstring = '';
1219: if ($target eq 'web' || $target eq 'webgrade') {
1220: $currentstring .= $token->[2];
1221: } elsif ($target eq 'tex') {
1222: $currentstring .= '}';
1223: }
1224: return $currentstring;
1225: }
1226:
1227: #-- <q> tag (end tag required)
1228: sub start_q {
1229: my ($target,$token) = @_;
1230: my $currentstring = '';
1231: if ($target eq 'web' || $target eq 'webgrade') {
1232: $currentstring .= $token->[4];
1233: } elsif ($target eq 'tex') {
1234: $currentstring .= '\emph{';
1235: }
1236: return $currentstring;
1237: }
1238:
1239: sub end_q {
1240: my ($target,$token) = @_;
1241: my $currentstring = '';
1242: if ($target eq 'web' || $target eq 'webgrade') {
1243: $currentstring .= $token->[2];
1244: } elsif ($target eq 'tex') {
1245: $currentstring .= '}';
1246: }
1247: return $currentstring;
1248: }
1249:
1250: # <p> is a bit strange since it does not require a closing </p>
1251: # However in latex, we must often output closing stuff to end
1252: # environments and {}'s etc. Therefore we do all the work
1253: # of figuring out the ending strings in the start tag processing,
1254: # and provide a mechanism to output the stop text external
1255: # to tag processing.
1256: #
1257: {
1258:
1259: my $closing_string = ''; # String required to close <p>
1260:
1261: # Some tags are <p> fragile meaning that <p> inside of them
1262: # does not work within TeX mode. This is managed via the
1263: # counter below:
1264: #
1265:
1266: my $para_disabled = 0;
1267:
1268: sub disable_para {
1269: $para_disabled++;
1270: }
1271: sub enable_para {
1272: $para_disabled--;
1273: }
1274:
1275:
1276: #-- <p> tag (end tag optional)
1277: #optional attribute - align="center|left|right"
1278: sub start_p {
1279: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1280: my $currentstring = '';
1281: if ($target eq 'web' || $target eq 'webgrade') {
1282: $currentstring .= &end_p(); # close off prior para if in progress.
1283: $currentstring .= $token->[4];
1284: if (! ($currentstring =~ /\//)) {
1285: $closing_string = '</p>'; # Deal correctly with <p /> e.g.
1286: }
1287: } elsif ($target eq 'tex' && !$para_disabled) {
1288:
1289: $currentstring .= &end_p(); # close off prior para if in progress.
1290: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1291: if ($align eq 'center') {
1292: $currentstring .='\begin{center}\par ';
1293: $closing_string = '\end{center}';
1294: if (&is_inside_of($tagstack, "table")) {
1295: $currentstring = ¢er_correction().$currentstring;
1296: }
1297: } elsif ($align eq 'right') {
1298: $currentstring.="\n".'{\flushright ';
1299: # $currentstring.='\makebox['.$env{'form.textwidth'}.']{\hfill\llap{';
1300: $closing_string= "}\n";
1301: } elsif ($align eq 'left') {
1302: $currentstring.= "\n".'{\flushleft ';
1303: # $currentstring.='\noindent\makebox['.$env{'form.textwidth'}.']{{';
1304: $closing_string = "}\n";
1305: } else {
1306: $currentstring.='\par ';
1307: if (&is_inside_of($tagstack, 'table')) {
1308: $closing_string = '\vskip 0pt'; # Seems to be consistent with <p> in tables.
1309: } else {
1310: $closing_string = '\strut\\\\\strut ';
1311: }
1312: }
1313:
1314: }
1315: return $currentstring;
1316: }
1317: #
1318: # End paragraph processing just requires that we output the
1319: # closing string that was saved and blank it.
1320: sub end_p {
1321: # Note only 'tex' mode uses disable_para and enable_para
1322: # so we don't need to know the target in the check below:
1323:
1324: if (!$para_disabled) {
1325: my $current_string = $closing_string;
1326: $closing_string = ''; # Not in a para anymore.
1327: return $current_string;
1328: } else {
1329: return '';
1330: }
1331:
1332: }
1333: }
1334: #-- <br> tag (end tag forbidden)
1335: sub start_br {
1336: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1337: my $currentstring = '';
1338: if ($target eq 'web' || $target eq 'webgrade') {
1339: $currentstring .= $token->[4];
1340: } elsif ($target eq 'tex') {
1341: my @tempo=@$tagstack;
1342: my $signal=0;
1343: # Not going to factor this to is_inside_of since that would require
1344: # multiple stack traversals.
1345: #
1346: for (my $i=$#tempo;$i>=0;$i--) {
1347: if (($tempo[$i] eq 'b') || ($tempo[$i] eq 'strong') ||
1348: ($tempo[$i] eq 'ol') || ($tempo[$i] eq 'ul')) {
1349: $signal=1;
1350: }
1351: if (($tempo[$i] eq 'td') || ($tempo[$i] eq 'th')) {
1352: $signal = 1;
1353: }
1354: }
1355: if ($signal != 1) {
1356: $currentstring .= '\strut \\\\ \strut ';
1357: }
1358:
1359: }
1360: return $currentstring;
1361: }
1362:
1363: sub end_br {
1364: my ($target,$token) = @_;
1365: my $currentstring = '';
1366: if ($target eq 'web' || $target eq 'webgrade') {
1367: $currentstring .= $token->[2];
1368: }
1369: return $currentstring;
1370: }
1371:
1372: #-- <big> tag (end tag required)
1373: sub start_big {
1374: my ($target,$token) = @_;
1375: my $currentstring = '';
1376: if ($target eq 'web' || $target eq 'webgrade') {
1377: $currentstring .= $token->[4];
1378: } elsif ($target eq 'tex') {
1379: $currentstring .= '{\large ';
1380: }
1381: return $currentstring;
1382: }
1383:
1384: sub end_big {
1385: my ($target,$token) = @_;
1386: my $currentstring = '';
1387: if ($target eq 'web' || $target eq 'webgrade') {
1388: $currentstring .= $token->[2];
1389: } elsif ($target eq 'tex') {
1390: $currentstring .= '}';
1391: }
1392: return $currentstring;
1393: }
1394:
1395: #-- <small> tag (end tag required)
1396: sub start_small {
1397: my ($target,$token) = @_;
1398: my $currentstring = '';
1399: if ($target eq 'web' || $target eq 'webgrade') {
1400: $currentstring .= $token->[4];
1401: } elsif ($target eq 'tex') {
1402: $currentstring .= '{\footnotesize ';
1403: }
1404: return $currentstring;
1405: }
1406:
1407: sub end_small {
1408: my ($target,$token) = @_;
1409: my $currentstring = '';
1410: if ($target eq 'web' || $target eq 'webgrade') {
1411: $currentstring .= $token->[2];
1412: } elsif ($target eq 'tex') {
1413: $currentstring .= '}';
1414: }
1415: return $currentstring;
1416: }
1417:
1418: #-- <basefont> tag (end tag forbidden)
1419: sub start_basefont {
1420: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1421: my $currentstring = '';
1422: if ($target eq 'web' || $target eq 'webgrade') {
1423: $currentstring = $token->[4];
1424: } elsif ($target eq 'tex') {
1425: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1426: if (defined $basesize) {
1427: $currentstring = '{\\'.$basesize.' ';
1428: }
1429: }
1430: return $currentstring;
1431: }
1432:
1433: sub end_basefont {
1434: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1435: my $currentstring = '';
1436: if ($target eq 'web' || $target eq 'webgrade') {
1437: $currentstring = $token->[4];
1438: } elsif ($target eq 'tex') {
1439: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1440: if (defined $basesize) {
1441: $currentstring = '}';
1442: }
1443: }
1444: return $currentstring;
1445: }
1446:
1447: #-- <font> tag (end tag required)
1448: sub start_font {
1449: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1450: my $currentstring = '';
1451: if ($target eq 'web' || $target eq 'webgrade') {
1452: my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
1453: $currentstring = $token->[4];
1454: } elsif ($target eq 'tex') {
1455: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1456: if (defined $fontsize) {
1457: $currentstring = '{\\'.$fontsize.' ';
1458: }
1459: }
1460: return $currentstring;
1461: }
1462:
1463: sub end_font {
1464: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1465: my $currentstring = '';
1466: if ($target eq 'web' || $target eq 'webgrade') {
1467: $currentstring = $token->[2];
1468: } elsif ($target eq 'tex') {
1469: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1470: if (defined $fontsize) {
1471: $currentstring = '}';
1472: }
1473: }
1474: return $currentstring;
1475: }
1476:
1477: #-- <strike> tag (end tag required)
1478: sub start_strike {
1479: my ($target,$token) = @_;
1480: my $currentstring = '';
1481: if ($target eq 'web' || $target eq 'webgrade') {
1482: $currentstring .= $token->[4];
1483: } elsif ($target eq 'tex') {
1484: &Apache::lonxml::startredirection();
1485: }
1486: return $currentstring;
1487: }
1488:
1489: sub end_strike {
1490: my ($target,$token) = @_;
1491: my $currentstring = '';
1492: if ($target eq 'web' || $target eq 'webgrade') {
1493: $currentstring .= $token->[2];
1494: } elsif ($target eq 'tex') {
1495: $currentstring=&Apache::lonxml::endredirection();
1496: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1497: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1498: $currentstring=~s/(\S)\s*$/$1\}/;
1499: }
1500: return $currentstring;
1501: }
1502:
1503: #-- <s> tag (end tag required)
1504: sub start_s {
1505: my ($target,$token) = @_;
1506: my $currentstring = '';
1507: if ($target eq 'web' || $target eq 'webgrade') {
1508: $currentstring .= $token->[4];
1509: } elsif ($target eq 'tex') {
1510: &Apache::lonxml::startredirection();
1511: }
1512: return $currentstring;
1513: }
1514:
1515: sub end_s {
1516: my ($target,$token) = @_;
1517: my $currentstring = '';
1518: if ($target eq 'web' || $target eq 'webgrade') {
1519: $currentstring .= $token->[2];
1520: } elsif ($target eq 'tex') {
1521: $currentstring=&Apache::lonxml::endredirection();
1522: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1523: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1524: $currentstring=~s/(\S)\s*$/$1\}/;
1525: }
1526: return $currentstring;
1527: }
1528:
1529: #-- <sub> tag (end tag required)
1530: sub start_sub {
1531: my ($target,$token) = @_;
1532: my $currentstring = '';
1533: if ($target eq 'web' || $target eq 'webgrade') {
1534: $currentstring .= $token->[4];
1535: } elsif ($target eq 'tex') {
1536: $currentstring .= '\raisebox{-\smallskipamount}{\scriptsize{';
1537: }
1538: return $currentstring;
1539: }
1540:
1541: sub end_sub {
1542: my ($target,$token) = @_;
1543: my $currentstring = '';
1544: if ($target eq 'web' || $target eq 'webgrade') {
1545: $currentstring .= $token->[2];
1546: } elsif ($target eq 'tex') {
1547: $currentstring .= '}}';
1548: }
1549: return $currentstring;
1550: }
1551:
1552: #-- <sup> tag (end tag required)
1553: sub start_sup {
1554: my ($target,$token) = @_;
1555: my $currentstring = '';
1556: if ($target eq 'web' || $target eq 'webgrade') {
1557: $currentstring .= $token->[4];
1558: } elsif ($target eq 'tex') {
1559: $currentstring .= '\raisebox{\smallskipamount}{\scriptsize{';
1560: }
1561: return $currentstring;
1562: }
1563:
1564: sub end_sup {
1565: my ($target,$token) = @_;
1566: my $currentstring = '';
1567: if ($target eq 'web' || $target eq 'webgrade') {
1568: $currentstring .= $token->[2];
1569: } elsif ($target eq 'tex') {
1570: $currentstring .= '}}';
1571: }
1572: return $currentstring;
1573: }
1574:
1575: #-- <hr> tag (end tag forbidden)
1576: sub start_hr {
1577: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1578: my $currentstring = &end_p(); # End enclosing para.
1579: if ($target eq 'web' || $target eq 'webgrade') {
1580: $currentstring .= $token->[4];
1581: } elsif ($target eq 'tex') {
1582:
1583: # <hr /> can't be inside of <sup><sub> thank you LaTeX.
1584: #
1585: my $restart_sub = 0;
1586: my $restart_sup = 0;
1587:
1588: # Since <sub> and <sup> are simple tags it's ok to turn off/on
1589: # using the start_ stop_ functions.. those tags only care about
1590: # $target.
1591:
1592: if (&is_inside_of($tagstack, "sub")) {
1593: $restart_sub = 1;
1594: $currentstring .= &end_sub($target, $token, $tagstack,
1595: $parstack, $parser, $safeeval);
1596: }
1597: if (&is_inside_of($tagstack, "sup")) {
1598: $restart_sup = 1;
1599: $currentstring .= &end_sup($target, $token, $tagstack,
1600: $parstack, $parser, $safeeval);
1601: }
1602:
1603: my $LaTeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1604: if (defined $LaTeXwidth) {
1605: if ($LaTeXwidth=~/^%/) {
1606: substr($LaTeXwidth,0,1)='';
1607: $LaTeXwidth=($LaTeXwidth/100).'\textwidth';
1608: }
1609: } else {
1610: $LaTeXwidth ='0.9\textwidth';
1611: }
1612: my ($pre,$post);
1613: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1614: if (($align eq 'center') || (not defined $align)) {
1615: $pre=''; $post='';
1616: } elsif ($align eq 'left') {
1617: $pre='\rlap{'; $post='} \hfill';
1618: } elsif ($align eq 'right') {
1619: $pre=' \hfill \llap{'; $post='}';
1620: }
1621: $currentstring .= ' \vskip 0 mm \noindent\makebox['.$LaTeXwidth.']{'.$pre.'\makebox['.
1622: $LaTeXwidth.'][b]{\hrulefill}'.$post.'}\vskip 0 mm ';
1623: # Turn stuff back on that we can't be inside of.
1624:
1625: if ($restart_sub) {
1626: $currentstring .= &start_sub($target, $token, $tagstack,
1627: $parstack, $parser, $safeeval);
1628: }
1629: if ($restart_sup) {
1630: $currentstring .= &start_sup($target, $token, $tagstack,
1631: $parstack, $parser, $safeeval);
1632: }
1633: }
1634: return $currentstring;
1635: }
1636:
1637: sub end_hr {
1638: my ($target,$token) = @_;
1639: my $currentstring = '';
1640: if ($target eq 'web' || $target eq 'webgrade') {
1641: $currentstring .= $token->[2];
1642: }
1643: return $currentstring;
1644: }
1645:
1646: #-- <div> tag (end tag required)
1647: {
1648:
1649: # Since div can be nested, the stack below is used
1650: # in 'tex' mode to store the ending strings
1651: # for the div stack.
1652:
1653: my @div_end_stack;
1654:
1655: sub start_div {
1656: my ($target,$token, $tagstack, $parstack, $parser, $safeeval) = @_;
1657: my $currentstring = &end_p(); # Close enclosing para.
1658: if ($target eq 'web' || $target eq 'webgrade') {
1659: $currentstring .= $token->[4];
1660: }
1661: if ($target eq 'tex') {
1662: # 4 possible alignments: left, right, center, and -missing-.
1663: # If inside a table row, we must let the table logic
1664: # do the alignment, however.
1665: #
1666:
1667: my $endstring = '';
1668:
1669: my $align = lc(&Apache::lonxml::get_param('align', $parstack,
1670: $safeeval, undef, 1));
1671: if ($align eq 'center') {
1672: $currentstring .= '\begin{center}';
1673: $endstring = '\end{center}';
1674: if (&is_inside_of($tagstack, "table")) {
1675: $currentstring = ¢er_correction().$currentstring;
1676: $endstring .= ¢er_end_correction();
1677: }
1678: }
1679: elsif ($align eq 'right') {
1680: $currentstring .= '\begin{flushright}';
1681: $endstring .= '\end{flushright}';
1682: } elsif ($align eq 'left') {
1683: $currentstring .= '\begin{flushleft}';
1684: $endstring = '\end{flushleft}';
1685: } else {
1686:
1687: }
1688: $currentstring .= "\n"; # For human readability.
1689: $endstring = "\n$endstring\n"; # For human readability
1690: push(@div_end_stack, $endstring);
1691: }
1692: return $currentstring;
1693: }
1694:
1695: sub end_div {
1696: my ($target,$token) = @_;
1697: my $currentstring = '';
1698: if ($target eq 'web' || $target eq 'webgrade') {
1699: $currentstring .= $token->[2];
1700: }
1701: if ($target eq 'tex') {
1702: my $endstring = pop @div_end_stack;
1703: $currentstring .= $endstring;
1704: }
1705: return $currentstring;
1706: }
1707: }
1708:
1709: #-- <a> tag (end tag required)
1710: sub start_a {
1711: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1712: my $currentstring = '';
1713: if ($target eq 'web' || $target eq 'webgrade') {
1714: my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
1715: undef,1);
1716: $currentstring=&Apache::lonenc::encrypt_ref($token,{'href'=>$href});
1717: if ($href =~ /\S/) {
1718: if ($href !~ m{^https?://}) {
1719: my $url=&Apache::lonnet::hreflocation('',$env{'request.filename'});
1720: my $linkurl;
1721: if ($href =~ m{^/uploaded/}) {
1722: $linkurl = $href;
1723: } elsif ($href =~ m{^[^/]}) {
1724: my $path = $url;
1725: $path =~ s{[^/]*$}{};
1726: $linkurl = $path.$href;
1727: }
1728: if ($linkurl =~ m{^/uploaded/}) {
1729: if (!&Apache::lonnet::allowed('bre',$linkurl)) {
1730: if (&Apache::lonnet::is_on_map($url)) {
1731: &Apache::lonxml::extlink($linkurl);
1732: } elsif ($env{'request.course.id'}) {
1733: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
1734: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
1735: if ($linkurl =~ m{^([^/]|/uploaded/$cdom/$cnum/docs/)}) {
1736: my $cleanhref = &clean_docs_httpref($linkurl,$url,$cdom,$cnum);
1737: if ($cleanhref) {
1738: &Apache::lonxml::extlink($cleanhref);
1739: }
1740: }
1741: }
1742: }
1743: }
1744: }
1745: }
1746: }
1747: return $currentstring;
1748: }
1749:
1750: sub end_a {
1751: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1752: my $currentstring = '';
1753: if ($target eq 'web' || $target eq 'webgrade') {
1754: $currentstring .= $token->[2];
1755: }
1756: if ($target eq 'tex') {
1757: my $href =
1758: &Apache::lonxml::get_param('href',$parstack,$safeeval,undef,1);
1759: my $name =
1760: &Apache::lonxml::get_param('name',$parstack,$safeeval,undef,1);
1761: my $uriprint =
1762: &Apache::lonxml::get_param('uriprint',$parstack,$safeeval,undef,1);
1763: my $anchorprint =
1764: &Apache::lonxml::get_param('anchorprint',$parstack,$safeeval,undef,1);
1765: if (($href =~ /\S/) && ($uriprint=~/^on|uriprint|yes|1$/i)) {
1766: $href =~ s/([^\\])%/$1\\\%/g;
1767: # Substitute special symbols... and allow line breaks at each /
1768: #
1769: $href = &Apache::lonxml::latex_special_symbols($href);
1770: $href =~ s/\//\/\\-/g; # Map / to /\- to allow hyphenation.
1771: $currentstring .= ' ({\tt URI:'.$href.'})';
1772: } elsif (($name =~ /\S/) && ($anchorprint=~/^on|anchorprint|yes|1$/i)) {
1773: $currentstring .= ' ({\tt Anchor:'.&Apache::lonxml::latex_special_symbols($name).'})';
1774: } else {
1775: $currentstring.='';
1776: }
1777: }
1778: return $currentstring;
1779: }
1780:
1781: #-- <li> tag (end tag optional)
1782: sub start_li {
1783: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1784: my $currentstring = '';
1785: if ($target eq 'web' || $target eq 'webgrade') {
1786: $currentstring = $token->[4];
1787: } elsif ($target eq 'tex') {
1788: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1789: my $value=&Apache::lonxml::get_param('value',$parstack,$safeeval,undef,0);
1790: #FIXME need to support types i and I
1791: if ($type=~/disc/) {
1792: $currentstring .= ' \item[$\bullet$] ';
1793: } elsif ($type=~/circle/) {
1794: $currentstring .= ' \item[$\circ$] ';
1795: } elsif ($type=~/square/) {
1796: $currentstring .= ' \item[$\diamond$] ';
1797: } elsif ($type eq '1') {
1798: $currentstring .= ' \item['.($Apache::londefdef::list_index+1).'.]';
1799: } elsif ($type eq 'A') {
1800: $currentstring .= ' \item['.('A'..'Z')[$Apache::londefdef::list_index].'.]';
1801: } elsif ($type eq 'a') {
1802: $currentstring .= ' \item['.('a'..'z')[$Apache::londefdef::list_index].'.]';
1803: } elsif ($value ne '') {
1804: $currentstring .= ' \item['.$value.'] ';
1805: } else {
1806: $currentstring .= ' \item ';
1807: }
1808: $Apache::londefdef::list_index++;
1809: }
1810: return $currentstring;
1811: }
1812:
1813: sub end_li {
1814: my ($target,$token) = @_;
1815: my $currentstring = &end_p(); # In case there's a <p> in the <li>
1816: if ($target eq 'web' || $target eq 'webgrade') {
1817: $currentstring .= $token->[2];
1818: }
1819: return $currentstring;
1820: }
1821:
1822: #-- <u> tag (end tag required)
1823: sub start_u {
1824: my ($target,$token) = @_;
1825: my $currentstring = '';
1826: if ($target eq 'web' || $target eq 'webgrade') {
1827: $currentstring .= $token->[4];
1828: } elsif ($target eq 'tex') {
1829: &Apache::lonxml::startredirection();
1830: }
1831: return $currentstring;
1832: }
1833:
1834: sub end_u {
1835: my ($target,$token) = @_;
1836: my $currentstring = '';
1837: if ($target eq 'web' || $target eq 'webgrade') {
1838: $currentstring .= $token->[2];
1839: } elsif ($target eq 'tex') {
1840: $currentstring=&Apache::lonxml::endredirection();
1841: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1842: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1843: $currentstring=~s/(\S)\s*$/$1\}/;
1844: }
1845: return $currentstring;
1846: }
1847:
1848: #-- <ul> tag (end tag required)
1849: sub start_ul {
1850: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1851: my $currentstring = &end_p(); # Close off enclosing list.
1852: if ($target eq 'web' || $target eq 'webgrade') {
1853: $currentstring .= $token->[4];
1854: } elsif ($target eq 'tex') {
1855: my $TeXtype=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1856: $Apache::londefdef::list_index=0;
1857: if ($TeXtype eq 'disc') {
1858: $currentstring .= '\renewcommand{\labelitemi}{$\bullet$}'.
1859: '\renewcommand{\labelitemii}{$\bullet$}'.
1860: '\renewcommand{\labelitemiii}{$\bullet$}'.
1861: '\renewcommand{\labelitemiv}{$\bullet$}';
1862: } elsif ($TeXtype eq 'circle') {
1863: $currentstring .= '\renewcommand{\labelitemi}{$\circ$}'.
1864: '\renewcommand{\labelitemii}{$\circ$}'.
1865: '\renewcommand{\labelitemiii}{$\circ$}'.
1866: '\renewcommand{\labelitemiv}{$\circ$}';
1867: } elsif ($TeXtype eq 'square') {
1868: $currentstring .= '\renewcommand{\labelitemi}{$\diamond$}'.
1869: '\renewcommand{\labelitemii}{$\diamond$}'.
1870: '\renewcommand{\labelitemiii}{$\diamond$}'.
1871: '\renewcommand{\labelitemiv}{$\diamond$}';
1872: }
1873: $currentstring .= '\strut \begin{itemize}';
1874: }
1875: return $currentstring;
1876: }
1877:
1878: sub end_ul {
1879: my ($target,$token) = @_;
1880: my $currentstring = '';
1881: if ($target eq 'web' || $target eq 'webgrade') {
1882: $currentstring = $token->[2];
1883: } elsif ($target eq 'tex') {
1884: $currentstring = '\end{itemize} \renewcommand{\labelitemi}{$\bullet$}'.
1885: '\renewcommand{\labelitemii}{$\bullet$}'.
1886: '\renewcommand{\labelitemiii}{$\bullet$}'.
1887: '\renewcommand{\labelitemiv}{$\bullet$}\strut ';
1888: }
1889: return $currentstring;
1890: }
1891:
1892: #-- <menu> tag (end tag required)
1893: sub start_menu {
1894: my ($target,$token) = @_;
1895: my $currentstring = '';
1896: if ($target eq 'web' || $target eq 'webgrade') {
1897: $currentstring = $token->[4];
1898: } elsif ($target eq 'tex') {
1899: $currentstring = " \\begin{itemize} ";
1900: }
1901: return $currentstring;
1902: }
1903:
1904: sub end_menu {
1905: my ($target,$token) = @_;
1906: my $currentstring = '';
1907: if ($target eq 'web' || $target eq 'webgrade') {
1908: $currentstring = $token->[2];
1909: } elsif ($target eq 'tex') {
1910: $currentstring = " \\end{itemize}";
1911: }
1912: return $currentstring;
1913: }
1914:
1915: #-- <dir> tag (end tag required)
1916: sub start_dir {
1917: my ($target,$token) = @_;
1918: my $currentstring = &end_p(); # In case there's a <p> prior to the list.
1919: if ($target eq 'web' || $target eq 'webgrade') {
1920: $currentstring .= $token->[4];
1921: } elsif ($target eq 'tex') {
1922: $currentstring .= " \\begin{itemize} ";
1923: }
1924: return $currentstring;
1925: }
1926:
1927: sub end_dir {
1928: my ($target,$token) = @_;
1929: my $currentstring = '';
1930: if ($target eq 'web' || $target eq 'webgrade') {
1931: $currentstring = $token->[2];
1932: } elsif ($target eq 'tex') {
1933: $currentstring = " \\end{itemize}";
1934: }
1935: return $currentstring;
1936: }
1937:
1938: #-- <ol> tag (end tag required)
1939: sub start_ol {
1940: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1941: my $currentstring = &end_p(); # In case there's a <p> prior to the list.
1942: if ($target eq 'web' || $target eq 'webgrade') {
1943: $currentstring .= $token->[4];
1944: } elsif ($target eq 'tex') {
1945: $Apache::londefdef::list_index=0;
1946: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1947: if ($type eq '1') {
1948: $currentstring .= '\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1949: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1950: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1951: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}';
1952: } elsif ($type eq 'A') {
1953: $currentstring .= '\renewcommand{\labelenumi}{\Alph{enumi}.}'.
1954: '\renewcommand{\labelenumii}{\Alph{enumii}.}'.
1955: '\renewcommand{\labelenumiii}{\Alph{enumiii}.}'.
1956: '\renewcommand{\labelenumiv}{\Alph{enumiv}.}';
1957: } elsif ($type eq 'a') {
1958: $currentstring .= '\renewcommand{\labelenumi}{\alph{enumi}.}'.
1959: '\renewcommand{\labelenumii}{\alph{enumii}.}'.
1960: '\renewcommand{\labelenumiii}{\alph{enumiii}.}'.
1961: '\renewcommand{\labelenumiv}{\alph{enumiv}.}';
1962: } elsif ($type eq 'i') {
1963: $currentstring .= '\renewcommand{\labelenumi}{\roman{enumi}.}'.
1964: '\renewcommand{\labelenumii}{\roman{enumii}.}'.
1965: '\renewcommand{\labelenumiii}{\roman{enumiii}.}'.
1966: '\renewcommand{\labelenumiv}{\roman{enumiv}.}';
1967: } elsif ($type eq 'I') {
1968: $currentstring .= '\renewcommand{\labelenumi}{\Roman{enumi}.}'.
1969: '\renewcommand{\labelenumii}{\Roman{enumii}.}'.
1970: '\renewcommand{\labelenumiii}{\Roman{enumiii}.}'.
1971: '\renewcommand{\labelenumiv}{\Roman{enumiv}.}';
1972: }
1973: $currentstring .= '\strut \begin{enumerate}';
1974: }
1975: return $currentstring;
1976: }
1977:
1978: sub end_ol {
1979: my ($target,$token) = @_;
1980: my $currentstring = '';
1981: if ($target eq 'web' || $target eq 'webgrade') {
1982: $currentstring = $token->[2];
1983: } elsif ($target eq 'tex') {
1984: $currentstring = '\end{enumerate}\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1985: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1986: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1987: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}\strut ';
1988: }
1989: return $currentstring;
1990: }
1991:
1992: #-- <dl> tag (end tag required)
1993: sub start_dl {
1994: my ($target,$token) = @_;
1995: my $currentstring = &end_p(); # In case there's a <p> unclosed prior to the list.
1996: if ($target eq 'web' || $target eq 'webgrade') {
1997: $currentstring .= $token->[4];
1998: } elsif ($target eq 'tex') {
1999: $currentstring .= '\begin{description}';
2000: $Apache::londefdef::DL++;
2001: push(@Apache::londefdef::description,[]);
2002: $Apache::londefdef::DD[$Apache::londefdef::DL]=0;
2003: $Apache::londefdef::DT[$Apache::londefdef::DL]=0;
2004: $Apache::londefdef::seenDT[$Apache::londefdef::DL]=0;
2005: }
2006: return $currentstring;
2007: }
2008:
2009: sub end_dl {
2010: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2011: my $currentstring = '';
2012: if ($target eq 'web' || $target eq 'webgrade') {
2013: $currentstring = $token->[2];
2014: } elsif ($target eq 'tex') {
2015: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
2016: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
2017: foreach my $element (@{$Apache::londefdef::description[-1]}) {
2018: $currentstring.=' '.$element.' ';
2019: }
2020: pop(@Apache::londefdef::description);
2021: $currentstring.='\end{description}';
2022: delete($Apache::londefdef::DD[$Apache::londefdef::DL]);
2023: delete($Apache::londefdef::DT[$Apache::londefdef::DL]);
2024: delete($Apache::londefdef::seenDT[$Apache::londefdef::DL]);
2025: $Apache::londefdef::DL--;
2026: }
2027: return $currentstring;
2028: }
2029:
2030: #-- <dt> tag (end tag optional)
2031: sub start_dt {
2032: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2033: my $currentstring='';
2034: if ($target eq 'web' || $target eq 'webgrade') {
2035: $currentstring = $token->[4];
2036: } elsif ($target eq 'tex') {
2037: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
2038: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
2039: &Apache::lonxml::startredirection();
2040: $Apache::londefdef::DT[-1]++;
2041: $Apache::londefdef::seenDT[-1]=1;
2042: }
2043: return $currentstring;
2044: }
2045:
2046: sub end_dt {
2047: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2048: my $currentstring = '';
2049: if ($target eq 'web' || $target eq 'webgrade') {
2050: $currentstring = $token->[2];
2051: } elsif ($target eq 'tex') {
2052: if ($Apache::londefdef::DT[-1]) {
2053: my $data=&item_cleanup();
2054: push(@{$Apache::londefdef::description[-1]},'\item['.$data.'] \strut \vskip 0mm');
2055: $Apache::londefdef::DT[-1]--;
2056: }
2057: }
2058: return $currentstring;
2059: }
2060:
2061: sub item_cleanup {
2062: my $item=&Apache::lonxml::endredirection();
2063: $item=~s/\\begin{center}//g;
2064: $item=~s/\\end{center}//g;
2065: return $item;
2066: }
2067:
2068: #-- <dd> tag (end tag optional)
2069: sub start_dd {
2070: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2071: my $currentstring = '';
2072: if ($target eq 'web' || $target eq 'webgrade') {
2073: $currentstring = $token->[4];
2074: } elsif ($target eq 'tex') {
2075: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
2076: if ($Apache::londefdef::DD[-1]) { &end_dd(@_);}
2077: if (!$Apache::londefdef::seenDT[-1]) {
2078: push(@{$Apache::londefdef::description[-1]},'\item[\strut] \strut \vskip 0mm ');
2079: }
2080: push(@{$Apache::londefdef::description[-1]},'');
2081: $Apache::londefdef::description[-1]->[-1].=' \strut ';
2082: $Apache::londefdef::DD[-1]++;
2083: &Apache::lonxml::startredirection();
2084: }
2085: return $currentstring;
2086: }
2087:
2088: sub end_dd {
2089: my ($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: $Apache::londefdef::description[-1]->[-1].=
2095: &Apache::lonxml::endredirection().' \vskip 0mm ';
2096: $Apache::londefdef::DD[-1]--;
2097: }
2098: return $currentstring;
2099: }
2100:
2101: #-- <table> tag (end tag required)
2102: # <table> also ends any prior <p> that is not closed.
2103: # but, unless I allow <p>'s to nest, that's the
2104: # only way I could think of to allow <p> in
2105: # <tr> <th> bodies
2106: #
2107: #list of supported attributes: border,width,TeXwidth,TeXtheme
2108: # align
2109: sub start_table {
2110: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2111: my $textwidth = '';
2112: my $currentstring = &end_p();
2113: if ($target eq 'web' || $target eq 'webgrade') {
2114: $currentstring .= $token->[4];
2115: } elsif ($target eq 'tex') {
2116: &disable_para(); # Can't have paras in a table.
2117:
2118: # Get the parameters that we can do something about:
2119:
2120: my $border = &Apache::lonxml::get_param('border', $parstack, $safeeval, undef, 0);
2121: my $width = &Apache::lonxml::get_param('TeXwidth', $parstack, $safeeval, undef, 0);
2122: my $theme = &Apache::lonxml::get_param('TeXtheme', $parstack, $safeeval, undef, 0);
2123: my $align = &Apache::lonxml::get_param('align', $parstack, $safeeval, undef, 0);
2124: my $cell_border = &Apache::lonxml::get_param('rules', $parstack, $safeeval, undef, 0);
2125:
2126: # The only thing that needs any figuring out is the width.. and then only if it is
2127: # a percent. If not it's assumed to be some valid TeX measurement unit e.g. 3.0cm
2128: #
2129:
2130: my $table = new Apache::lontable();
2131: if ((defined $border) && ($border > 0)) {
2132: # &Apache::lonnet::logthis("Turning on table borders: $border");
2133: $table->table_border(1);
2134: if (!defined $cell_border) {
2135: $table->cell_border(1); # Default for rules is all if rules not defined.
2136: }
2137: }
2138:
2139: if ((defined $cell_border)) {
2140: if ($cell_border eq 'all') {
2141: $table->cell_border(1);
2142: } elsif ($cell_border eq 'rows') {
2143: $table->cell_border(2);
2144: } elsif ($cell_border eq 'cols') {
2145: $table->cell_border(3);
2146: } elsif($cell_border eq 'groups') {
2147: $table->cell_border(4);
2148: } else {
2149: $table->cell_border(0);
2150: }
2151: }
2152: if (defined $theme) {
2153: $table->theme($theme);
2154: }
2155: if (defined $align) {
2156: $table->alignment($align);
2157: }
2158:
2159: # Missing width is most of page width
2160:
2161: if (!(defined $width)) {
2162: $width = '70%';
2163: }
2164:
2165: # If a percentage, need to calculate what this means in terms of
2166: # page width:
2167:
2168: if ($width =~ /%$/) {
2169: my $textwidth = &recalc($env{'form.textwidth'}); # Page width in mm.
2170: $width =~ s/%//;
2171: $width = $width * $textwidth / 100.0;
2172: $width .= " mm";
2173: $table->width($width);
2174: }
2175:
2176: push(@Apache::londefdef::table, $table);
2177: $currentstring.=' \keephidden{NEW TABLE ENTRY}';
2178:
2179: }
2180: return $currentstring;
2181: }
2182:
2183: sub end_table {
2184: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2185: my $currentstring = '';
2186: if ($target eq 'web' || $target eq 'webgrade') {
2187: $currentstring = $token->[2];
2188: } elsif ($target eq 'tex') {
2189:
2190:
2191: my $table = pop(@Apache::londefdef::table);
2192: my $t = $table->generate();
2193: # &Apache::lonnet::logthis("Generating string");
2194: $currentstring = $t->generate_string();
2195: # &Apache::lonnet::logthis("Generated: $currentstring");
2196: &enable_para();
2197:
2198: }
2199: return $currentstring;
2200: }
2201:
2202: #-- <tr> tag (end tag optional)
2203: sub start_tr {
2204: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2205: my $currentstring = '';
2206: if ($target eq 'web' || $target eq 'webgrade') {
2207: $currentstring = $token->[4];
2208: } elsif ($target eq 'tex') {
2209:
2210: my $align = &Apache::lonxml::get_param('align', $parstack, $safeeval, undef, 1);
2211: $Apache::londefdef::table[-1]->start_row();
2212:
2213: if ($align ne '') {
2214: $Apache::londefdef::table[-1]->configure_row({default_halign => $align});
2215: }
2216:
2217: #---------------------------------------------------------------
2218: # Old table code.
2219: #---------------------------------------------------------------
2220:
2221: if (0) {
2222: $Apache::londefdef::table[-1]{'row_number'}++;
2223: my $alignchar=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
2224: if ($alignchar ne '') {
2225: push @ {$Apache::londefdef::table[-1]{'rows'} },substr($alignchar,0,1);
2226: } else {
2227: push @ {$Apache::londefdef::table[-1]{'rows'} }, 'l';
2228: }
2229: push ( @{ $Apache::londefdef::table[-1]{'rowdata'} }, $Apache::londefdef::table[-1]{'hinc'});
2230: #
2231: # Need to save the number of table columns to preserve the max # columns.
2232: #
2233: $Apache::londefdef::table[-1]{'prior_columns'} = $Apache::londefdef::table[-1]{'counter_columns'};
2234: $Apache::londefdef::table[-1]{'counter_columns'} = -1;
2235: push @ {$Apache::londefdef::table[-1]{'TeXlen'}}, [];
2236: push @ {$Apache::londefdef::table[-1]{'objectlen'}}, [];
2237: push @ {$Apache::londefdef::table[-1]{'minlen'}}, [];
2238: push @ {$Apache::londefdef::table[-1]{'maxlen'}}, [];
2239: push @ {$Apache::londefdef::table[-1]{'content'}}, [];
2240: }
2241: }
2242: return $currentstring;
2243: }
2244:
2245: sub end_tr {
2246: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2247: my $currentstring = &end_p(); # Close any pending <p> in the row.
2248: if ($target eq 'web' || $target eq 'webgrade') {
2249: $currentstring .= $token->[2];
2250: } elsif ($target eq 'tex') {
2251:
2252: # In case the user is missing a </td> or </th> tag:
2253:
2254: if ($Apache::londefdef::TD_redirection) {
2255: &end_td_tex($parstack,$parser,$safeeval);
2256: }
2257: $Apache::londefdef::table[-1]->end_row();
2258:
2259: #-----------------------------------------------
2260: # Old table code
2261: #-----------------------------------------------
2262:
2263: if (0) {
2264: if ($Apache::londefdef::TD_redirection) {
2265: &end_td_tex($parstack,$parser,$safeeval);
2266: }
2267: # Counter columns must be the maximum number of columns seen
2268: # in the table so far so:
2269: if ($Apache::londefdef::table[-1]{'prior_columns'} > $Apache::londefdef::table[-1]{'counter_columns'}) {
2270: $Apache::londefdef::table[-1]{'counter_columns'} = $Apache::londefdef::table[-1]{'prior_columns'};
2271: }
2272: }
2273:
2274:
2275: }
2276: return $currentstring;
2277: }
2278:
2279: #-- <td> tag (end tag optional)
2280: sub start_td {
2281: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2282: my $currentstring = '';
2283: if ($target eq 'web' || $target eq 'webgrade') {
2284: $currentstring = $token->[4];
2285: } elsif ($target eq 'tex') {
2286: $Apache::londefdef::TD_redirection = 1;
2287: &tag_check('tr','td',$tagstack,$parstack,$parser,$safeeval);
2288: }
2289: return $currentstring;
2290: }
2291:
2292: sub tag_check {
2293: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
2294: my @ar=@$parstack;
2295: for (my $i=$#ar-1;$i>=0;$i--) {
2296: if (lc($$tagstack[$i]) eq $good_tag) {
2297: &start_td_tex($parstack,$parser,$safeeval);
2298: last;
2299: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2300: splice @ar, $i+1;
2301: &end_td_tex(\@ar,$parser,$safeeval);
2302: &start_td_tex($parstack,$parser,$safeeval);
2303: last;
2304: }
2305: }
2306: return '';
2307: }
2308:
2309: #
2310: # Factor out cell configuration hash generation:
2311: #
2312:
2313: sub cell_config_hash {
2314: my ($align, $rowspan, $colspan, $width) = @_;
2315: if ($rowspan ne '') {
2316: $rowspan =~ s/^\s+|\s+$//g;
2317: }
2318: if ($colspan ne '') {
2319: $colspan =~ s/^\s+|\s+$//g;
2320: }
2321: my %config;
2322: if ($align ne '') {
2323: $config{'halign'} = $align;
2324: }
2325: if (($colspan =~ /^\d+$/) && ($colspan > 0)) {
2326: $config{'colspan'} = $colspan;
2327: }
2328: if (($rowspan =~ /^\d+$/) && ($rowspan > 0)) {
2329: $config{'rowspan'} = $rowspan;
2330: }
2331: if ($width ne '') {
2332: $config{'width'} = $width;
2333: }
2334: return \%config;
2335: }
2336:
2337: sub start_td_tex {
2338: my ($parstack,$parser,$safeeval) = @_;
2339:
2340: # At this stage, an empty cell is created with the
2341: # appropriate rowspan/colspan and alignment
2342: # attributes, but empty of text. end_td_tex will
2343: # fetch the contents from the recursive parse and
2344: # fill the cell with them:
2345: my $align = &Apache::lonxml::get_param('align', $parstack, $safeeval);
2346: my $rowspan = &Apache::lonxml::get_param('rowspan', $parstack, $safeeval);
2347: my $colspan = &Apache::lonxml::get_param('colspan', $parstack, $safeeval);
2348: my $width = &Apache::lonxml::get_param('TeXwidth', $parstack, $safeeval);
2349: my $config = &cell_config_hash($align, $rowspan, $colspan, $width);
2350:
2351: my $table = $Apache::londefdef::table[-1];
2352: $table->add_cell('', $config);
2353:
2354:
2355: #------------------------------------------------
2356: # Old table code.
2357: #------------------------------------------------
2358:
2359: if (0) {
2360:
2361: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2362: if ($alignchar eq '') {
2363: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
2364: }
2365: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
2366: $Apache::londefdef::table[-1]{'counter_columns'}++;
2367: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2368: if (defined $TeXwidth) {
2369: my $current_length=&recalc($TeXwidth);
2370: $current_length=~/(\d+\.?\d*)/;
2371: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2372: }
2373: }
2374: &Apache::lonxml::startredirection();
2375: return '';
2376: }
2377:
2378: sub end_td_tex {
2379:
2380: my $text = &Apache::lonxml::endredirection();
2381: my $table = $Apache::londefdef::table[-1];
2382: $table->append_cell_text($text);
2383:
2384: #-------------------------------------------------
2385: # Old table code
2386: #-------------------------------------------------
2387:
2388: if (0) {
2389: my ($parstack,$parser,$safeeval) = @_;
2390: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2391: my $current_column = $Apache::londefdef::table[-1]{'counter_columns'};
2392: my $data = &Apache::lonxml::endredirection();
2393:
2394: # The rowspan array of the table indicates which cells are part of a span.
2395: # n indicates the start of a span set of n rows.
2396: # ^ indicates a cell that continues a span set.
2397: # _ indicates the cell is at the bottom of a span set.
2398: # If this and subsequent cells are part of a rowspan, we must
2399: # push along the row until we find one that is not.
2400:
2401: while ((defined $Apache::londefdef::table[-1]{'rowspan'}[$current_row] [$current_column])
2402: && ($Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column] =~ /[\^\_]/)) {
2403: # Part of a span.
2404: push @ {$Apache::londefdef::table[-1]{'content'}[-1]}, '';
2405: $current_column++;
2406: }
2407: $Apache::londefdef::table[-1]{'counter_columns'} = $current_column;
2408:
2409:
2410: # Get the column and row spans.
2411: # Colspan can be done via \multicolumn if I can figure out the data structs.
2412:
2413: my $colspan = &Apache::lonxml::get_param('colspan', $parstack, $safeeval, undef, 0);
2414: if (!$colspan) {
2415: $colspan = 1;
2416: }
2417:
2418: my $rowspan = &Apache::lonxml::get_param('rowspan', $parstack, $safeeval, undef, 0);
2419: if (!$rowspan) {
2420: $rowspan = 1;
2421: }
2422:
2423:
2424:
2425: for (my $c = 0; $c < $colspan; $c++) {
2426: $Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column+$c] = $rowspan;
2427: for (my $i = 1; $i < $rowspan; $i++) {
2428: $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column+$c] = '^';
2429: if ($i == ($rowspan-1)) {
2430: $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column+$c] = '_';
2431: }
2432: }
2433: }
2434:
2435: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2436: if (defined $TeXwidth) {
2437: for (my $c = 0; $c < $colspan; $c++) {
2438: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2439: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2440: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2441: }
2442: } else {
2443: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2444: my $garbage_data=$data;
2445: my $fwidth=0;
2446: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2447: my $current_length=&recalc($1);
2448: $current_length=~/(\d+\.?\d*)/;
2449: if ($fwidth<$1) {$fwidth=$1;}
2450: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2451: }
2452: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2453: my $current_length=$1;
2454: if ($fwidth<$current_length) {$fwidth=$current_length;}
2455: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2456: }
2457: for (my $c = 0; $c < $colspan; $c++) {
2458: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2459: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2460: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2461: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2462: }
2463: } 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)*/) {
2464: my $garbage_data=$data;
2465: my $fwidth=0;
2466: while ($garbage_data=~/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)\s*\}/) {
2467: my $current_length=&recalc($1);
2468: $current_length=~/(\d+\.?\d*)/;
2469: if ($fwidth<$1) {$fwidth=$1;}
2470: $garbage_data=~s/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2471: }
2472: while ($garbage_data=~/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2473: my $current_length=&recalc($1);
2474: $current_length=~/(\d+\.?\d*)/;
2475: if ($fwidth<$1) {$fwidth=$1;}
2476: $garbage_data=~s/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2477: }
2478: for (my $c = 0; $c < $colspan; $c++) {
2479: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2480: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
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: $data=~s/\\\\\s*$//;
2485: } else {
2486: $data=~s/^\s+(\S.*)/$1/;
2487: $data=~s/(.*\S)\s+$/$1/;
2488: $data=~s/(\s)+/$1/;
2489: my ($current_length,$min_length)=(0,0);
2490: if ($data=~/\\vskip/) {
2491: my $newdata=$data;
2492: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2493: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2494: foreach my $elementdata (@newdata) {
2495: my $lengthnewdata=2.5*&LATEX_length($elementdata);
2496: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
2497: my @words=split(/ /,$elementdata);
2498: foreach my $word (@words) {
2499: my $lengthword=2.5*&LATEX_length($word);
2500: if ($min_length<$lengthword) {$min_length=$lengthword;}
2501: }
2502: }
2503: } else {
2504: $current_length=2.5*&LATEX_length($data);
2505: my @words=split(/ /,$data);
2506: foreach my $word (@words) {
2507: my $lengthword=2*&LATEX_length($word);
2508: if ($min_length<$lengthword) {$min_length=$lengthword;}
2509: }
2510: }
2511: for (my $c = 0; $c < $colspan; $c++) {
2512: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2513: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2514: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2515: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
2516: }
2517: }
2518: }
2519: # Substitute all of the tables nested in this cell in their appropriate places.
2520:
2521:
2522: my $nested_count = $#{$Apache::londefdef::table[-1]{'include'}}; # This one is constant...
2523: for (my $in=0; $in<=$nested_count; $in++) {
2524: my $nested = shift @{$Apache::londefdef::table[-1]{'include'}};
2525: $nested =~ s/\\end\{tabular\}\\strut\\\\/\\end\{tabular\}/;
2526: # $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2527: $data =~ s/\\keephidden\{NEW TABLE ENTRY\}/$nested/;
2528:
2529: }
2530: # Should be be killing off the 'include' elements as they're used up?
2531:
2532: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
2533:
2534:
2535:
2536:
2537: # the colspan array will indicate how many columns will be spanned by this
2538: # cell..this requires that counter_columns also be adjusted accordingly
2539: # so that the next bunch of text goes in the right cell. Note that since
2540: # counter_columns is incremented in the start_td_tex, we adjust by colspan-1.
2541: #
2542:
2543: $Apache::londefdef::table[-1]{'counter_columns'} += $colspan -1;
2544: for (my $i = 0; $i < ($colspan -1); $i++) {
2545: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },'';
2546: }
2547: for (my $r = 0; $r < $rowspan; $r++) {
2548: $Apache::londefdef::table[-1]{'colspan'}[$current_row+$r][$current_column] = $colspan;
2549: # Put empty text in spanned cols.
2550:
2551: }
2552:
2553: }
2554:
2555: return '';
2556: }
2557:
2558: sub end_td {
2559: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2560: my $currentstring = '';
2561: if ($target eq 'web' || $target eq 'webgrade') {
2562: $currentstring = $token->[2];
2563: } elsif ($target eq 'tex') {
2564: $Apache::londefdef::TD_redirection =0;
2565: &end_td_tex($parstack,$parser,$safeeval);
2566: }
2567: return $currentstring;
2568: }
2569:
2570: #-- <th> tag (end tag optional)
2571: sub start_th {
2572: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2573: my $currentstring = '';
2574: if ($target eq 'web' || $target eq 'webgrade') {
2575: $currentstring = $token->[4];
2576: } elsif ($target eq 'tex') {
2577: $Apache::londefdef::TD_redirection = 1;
2578: &tagg_check('tr','th',$tagstack,$parstack,$parser,$safeeval);
2579: }
2580: return $currentstring;
2581: }
2582:
2583: sub tagg_check {
2584: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
2585: my @ar=@$parstack;
2586: for (my $i=$#ar-1;$i>=0;$i--) {
2587: if (lc($$tagstack[$i]) eq $good_tag) {
2588: &start_th_tex($parstack,$parser,$safeeval);
2589: last;
2590: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2591: splice @ar, $i+1;
2592: &end_th_tex(\@ar,$parser,$safeeval);
2593: &start_th_tex($parstack,$parser,$safeeval);
2594: last;
2595: }
2596: }
2597: return '';
2598: }
2599:
2600: sub start_th_tex {
2601: my ($parstack,$parser,$safeeval) = @_;
2602:
2603: my $alignment = &Apache::lonxml::get_param('align', $parstack, $safeeval, undef,1);
2604: my $rowspan = &Apache::lonxml::get_param('rowspan', $parstack, $safeeval, undef, 1);
2605: my $colspan = &Apache::lonxml::get_param('colspan', $parstack, $safeeval, undef, 1);
2606:
2607: my $config = cell_config_hash($alignment, $rowspan, $colspan);
2608: my $table = $Apache::londefdef::table[-1];
2609: $table->add_cell('\textbf{', $config);
2610:
2611: #-------------------------------------------------------------------------------------
2612: #
2613: # Old table code.
2614: #
2615: #--------------------------------------------------------------------------------------
2616:
2617: if (0) {
2618:
2619:
2620: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2621: if ($alignchar eq '') {
2622: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
2623: }
2624: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
2625: $Apache::londefdef::table[-1]{'counter_columns'}++;
2626: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2627: if (defined $TeXwidth) {
2628: my $current_length=&recalc($TeXwidth);
2629: $current_length=~/(\d+\.?\d*)/;
2630: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2631: }
2632: }
2633:
2634: # Accept xml until the </th> tag.
2635:
2636: &Apache::lonxml::startredirection();
2637: return '';
2638: }
2639:
2640: sub end_th_tex {
2641: my ($parstack,$parser,$safeeval) = @_;
2642:
2643: my $table = $Apache::londefdef::table[-1];
2644: my $text = &Apache::lonxml::endredirection();
2645: $table->append_cell_text($text.'}');
2646:
2647: #-----------------------------------------------------------------------------
2648: # Old table code:
2649: #-----------------------------------------------------------------------------
2650:
2651: if (0) {
2652: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2653: my $data=&Apache::lonxml::endredirection();
2654: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2655: if (defined $TeXwidth) {
2656: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2657: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2658: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2659: } else {
2660: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2661: my $garbage_data=$data;
2662: my $fwidth=0;
2663: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2664: my $current_length=&recalc($1);
2665: $current_length=~/(\d+\.?\d*)/;
2666: if ($fwidth<$1) {$fwidth=$1;}
2667: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2668: }
2669: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2670: my $current_length=$1;
2671: if ($fwidth<$current_length) {$fwidth=$current_length;}
2672: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2673: }
2674: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2675: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2676: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2677: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2678: } else {
2679: $data=~s/^\s+(\S.*)/$1/;
2680: $data=~s/(.*\S)\s+$/$1/;
2681: $data=~s/(\s)+/$1/;
2682: my ($current_length,$min_length)=(0,0);
2683: if ($data=~/\\vskip/) {
2684: my $newdata=$data;
2685: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2686: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2687: foreach my $elementdata (@newdata) {
2688: my $lengthnewdata=2.5*&LATEX_length($elementdata);
2689: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
2690: my @words=split(/ /,$elementdata);
2691: foreach my $word (@words) {
2692: my $lengthword=2.5*&LATEX_length($word);
2693: if ($min_length<$lengthword) {$min_length=$lengthword;}
2694: }
2695: }
2696: } else {
2697: $current_length=2.5*&LATEX_length($data);
2698: my @words=split(/ /,$data);
2699: foreach my $word (@words) {
2700: my $lengthword=2*&LATEX_length($word);
2701: if ($min_length<$lengthword) {$min_length=$lengthword;}
2702: }
2703: }
2704: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2705: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2706: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2707: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
2708: }
2709: }
2710: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
2711: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2712: }
2713: #make data bold
2714: $data='\textbf{'.$data.'}';
2715: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
2716: }
2717: return'';
2718: }
2719:
2720: sub end_th {
2721: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2722: my $currentstring = &end_p(); # Close any open <p> in the row.
2723: if ($target eq 'web' || $target eq 'webgrade') {
2724: $currentstring .= $token->[2];
2725: } elsif ($target eq 'tex') {
2726: $Apache::londefdef::TD_redirection =0;
2727: &end_th_tex($parstack,$parser,$safeeval);
2728: }
2729: return $currentstring;
2730: }
2731:
2732: #-- <img> tag (end tag forbidden)
2733: #
2734: # Render the <IMG> tag.
2735: # <IMG> has the following attributes (in addition to the
2736: # standard HTML ones:
2737: # TeXwrap - Governs how the tex target will try to wrap text around
2738: # horizontally aligned images.
2739: # TeXwidth - The width of the image when rendered for print (mm).
2740: # TeXheight - The height of the image when rendered for print (mm)
2741: # (Note there seems to also be support for this as a % of page size)
2742: #
2743: sub start_img {
2744: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
2745: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,
2746: undef,1);
2747: if (! $src &&
2748: ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex')
2749: ) {
2750: my $inside = &Apache::lonxml::get_all_text("/img",$parser,$style);
2751: return '';
2752: }
2753: &Apache::lonxml::extlink($src);
2754: my $currentstring = '';
2755: my $scaling = .3;
2756:
2757: # Render unto browsers that which are the browser's...
2758:
2759: if ($target eq 'web' || $target eq 'webgrade') {
2760: my $enc = ('yes' eq
2761: lc(&Apache::lonxml::get_param('encrypturl',$parstack,
2762: $safeeval)));
2763: $currentstring.=&Apache::lonenc::encrypt_ref($token,{'src'=>$src},
2764: $enc);
2765:
2766: # and render unto TeX that which is LaTeX
2767: } elsif ($target eq 'tex') {
2768: #
2769: # The alignment will require some superstructure to be put around
2770: # the \includegraphics stuff. At present we can only partially
2771: # simulate the alignments offered by html.
2772: #
2773: #
2774: my $align = lc(&Apache::lonxml::get_param('align',
2775: $parstack,
2776: $safeeval,
2777: undef,1));
2778: if(!$align) {
2779: $align = "bottom"; # This is html's default so it's ours too.
2780: }
2781: #
2782: &Apache::lonxml::debug("Alignemnt = $align");
2783: # LaTeX's image/text wrapping is really bad since it wants to
2784: # make figures float.
2785: # The user has the optional parameter (applicable only to l/r
2786: # alignment to use the picins/parpic directive to get wrapped text
2787: # this is also imperfect.. that's why we give them a choice...
2788: # so they can't yell at us for our choice.
2789: #
2790: my $latex_rendering = &Apache::lonxml::get_param('TeXwrap',
2791: $parstack,
2792: $safeeval,
2793: undef,0);
2794: # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering");
2795: if(!$latex_rendering) {
2796: $latex_rendering = "texwrap";
2797: }
2798: # using texwrap inside a table does not work. So, if after all of this,
2799: # texwrap is on, we turn it off if we detect we're in a table:
2800: #
2801: if (($latex_rendering eq 'texwrap') && &is_inside_of($tagstack, "table")) {
2802: $latex_rendering = 'parpic';
2803: }
2804:
2805: # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering image file: $src");
2806:
2807: #if original bmp/gif/jpg/png file exist do following:
2808: my $origsrc=$src;
2809: my ($path,$file) = &get_eps_image($src);
2810: # &Apache::lonnet::logthis("Image source: $src result: $path $file");
2811: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
2812: &Apache::lonxml::debug("path = $path file = $file src = $src");
2813: if (-e $src) {
2814: &Apache::lonxml::debug("$src exists");
2815: my ($height_param,$width_param)=
2816: &image_size($origsrc,0.3,$parstack,$safeeval);
2817: my $size;
2818: if ($width_param) { $size.='width='.$width_param.' mm,'; }
2819: if ($height_param) { $size.='height='.$height_param.' mm]'; }
2820: # Default size if not able to extract that (e.g. eps image).
2821:
2822: # &Apache::lonnet::logthis("Size = $size");
2823:
2824: $size='['.$size;
2825: $size=~s/,$/]/;
2826: $currentstring .= '\graphicspath{{'.$path.'}}'
2827: .'\includegraphics'.$size.'{'.$file.'} ';
2828: my $closure;
2829: ($currentstring, $closure) = &align_latex_image($align,
2830: $latex_rendering,
2831: $currentstring,
2832: $width_param,
2833: $height_param);
2834: $currentstring .= $closure;
2835:
2836: } else {
2837: &Apache::lonxml::debug("$src does not exist");
2838: #original image file doesn't exist so check the alt attribute
2839: my $alt =
2840: &Apache::lonxml::get_param('alt',$parstack,$safeeval,undef,1);
2841: unless ($alt) {
2842: $alt=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
2843: }
2844:
2845: if ($alt) { $currentstring .= ' '.$alt.' '; }
2846: }
2847:
2848: # And here's where the semi-quote breaks down: allow the user
2849: # to edit the beast as well by rendering the problem for edit:
2850: } elsif ($target eq 'edit') {
2851: my $only = join(',',&Apache::loncommon::filecategorytypes('Pictures'));
2852: $currentstring .=&Apache::edit::tag_start($target,$token);
2853: $currentstring .=&Apache::edit::text_arg('Image Url:','src',$token,70).
2854: &Apache::edit::browse('src',undef,'alt',$only).' '.
2855: &Apache::edit::search('src',undef,'alt').'<br />';
2856: $currentstring .=&Apache::edit::text_arg('Description:','alt',$token,70).'<br />';
2857: $currentstring .=&Apache::edit::text_arg('width (pixel):','width',$token,5);
2858: $currentstring .=&Apache::edit::text_arg('height (pixel):','height',$token,5).'<br />';
2859: $currentstring .=&Apache::edit::text_arg('TeXwidth (mm):','TeXwidth',$token,5);
2860: $currentstring .=&Apache::edit::text_arg('TeXheight (mm):','TeXheight',$token,5);
2861: $currentstring .=&Apache::edit::select_arg('Alignment:','align',
2862: ['','bottom','middle','top','left','right'],$token,5);
2863: $currentstring .=&Apache::edit::select_arg('TeXwrap:', 'TeXwrap',
2864: ['', 'none','parbox', 'parpic', 'wrapfigure'], $token, 2);
2865: my $alt= &Apache::lonxml::get_param('alt',$parstack,$safeeval);
2866: my $enc= &Apache::lonxml::get_param('encrypturl',$parstack,$safeeval);
2867:
2868: $currentstring .=&Apache::edit::select_arg('Encrypt URL:','encrypturl',
2869: ['no','yes'], $token, 2);
2870: if (($alt=~/\S/) && (lc($enc) eq 'yes')) {
2871: $currentstring.='<br /><span class="LC_warning">'.&mt('Warning: the description "[_1]" will be available, even for encrypted URL',$alt).'</span><br />';
2872: }
2873: $currentstring .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2874: my $src= &Apache::lonxml::get_param('src',$parstack,$safeeval);
2875: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
2876: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
2877:
2878: if ($token->[2]{'src'}=~/\$/) {
2879: $currentstring.=&mt('Variable image source');
2880: } elsif ($token->[2]{'src'}=~/\S/) {
2881: $currentstring .= '<img src="'.$src.'" alt="'.$alt.'" ';
2882: if ($width) { $currentstring.=' width="'.$width.'" '; }
2883: if ($height) { $currentstring.=' height="'.$height.'" '; }
2884: $currentstring .= ' />';
2885: } else {
2886: $currentstring.=&mt("No image source specified");
2887: }
2888: } elsif ($target eq 'modified') {
2889: my ($osrc,$owidth,$oheight)=
2890: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2891: my $ctag=&Apache::edit::get_new_args($token,$parstack,
2892: $safeeval,'src','alt','align',
2893: 'TeXwidth','TeXheight', 'TeXwrap',
2894: 'width','height','encrypturl');
2895: my ($nsrc,$nwidth,$nheight)=
2896: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2897: my $loc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$nsrc);
2898: &image_replication($loc);
2899: my ($iwidth,$iheight);
2900: if (-e $loc) {
2901: my $image = Image::Magick->new;
2902: $image->Read($loc);
2903: ($iwidth, $iheight) = ($image->Get('width'),
2904: $image->Get('height'));
2905: }
2906: if ($osrc ne $nsrc || (!$nwidth && !$nheight)) {
2907: # changed image or no size specified,
2908: # if they didn't explicitly change the
2909: # width or height use the ones from the image
2910: if ($iwidth && $iheight) {
2911: if ($owidth == $nwidth || (!$nwidth && !$nheight)) {
2912: $token->[2]{'width'} = $iwidth;$ctag=1;
2913: }
2914: if ($oheight == $nheight || (!$nwidth && !$nheight)) {
2915: $token->[2]{'height'}=$iheight;$ctag=1;
2916: }
2917: }
2918: }
2919: my ($cwidth,$cheight)=($token->[2]{'width'},$token->[2]{'height'});
2920: # if we don't have a width or height
2921: if ($iwidth && $cwidth && !$cheight) {
2922: $token->[2]{'height'}=int(($cwidth/$iwidth)*$iheight);$ctag=1;
2923: }
2924: if ($iheight && $cheight && !$cwidth) {
2925: $token->[2]{'width'}=int(($cheight/$iheight)*$iwidth);$ctag=1;
2926: }
2927: if ($ctag) {$currentstring=&Apache::edit::rebuild_tag($token);}
2928: }
2929:
2930: return $currentstring;
2931: }
2932:
2933: sub end_img {
2934: my ($target,$token) = @_;
2935: my $currentstring = '';
2936: if ($target eq 'web' || $target eq 'webgrade') {
2937: $currentstring = $token->[2];
2938: } elsif ($target eq 'tex') {
2939: $currentstring = '';
2940: }
2941: return $currentstring;
2942: }
2943:
2944: #-- <applet> tag (end tag required)
2945: sub start_applet {
2946: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2947:
2948: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,undef,1);
2949: &Apache::lonxml::extlink($code);
2950: my $archive=&Apache::lonxml::get_param('archive',$parstack,$safeeval,
2951: undef,1);
2952: &Apache::lonxml::extlink($archive);
2953: my $currentstring = '';
2954: if ($target eq 'web' || $target eq 'webgrade') {
2955: $currentstring = $token->[4];
2956: } elsif ($target eq 'tex') {
2957: # Turn off some stuff we can't be inside thank you LaTeX
2958:
2959: my $restart_sub = 0;
2960: my $restart_sup = 0;
2961:
2962: # Since <sub> and <sup> are simple tags it's ok to turn off/on
2963: # using the start_ stop_ functions.. those tags only care about
2964: # $target.
2965:
2966: if (&is_inside_of($tagstack, "sub")) {
2967: $restart_sub = 1;
2968: $currentstring .= &end_sub($target, $token, $tagstack,
2969: $parstack, $parser, $safeeval);
2970: }
2971: if (&is_inside_of($tagstack, "sup")) {
2972: $restart_sup = 1;
2973: $currentstring .= &end_sup($target, $token, $tagstack,
2974: $parstack, $parser, $safeeval);
2975: }
2976:
2977: # Now process the applet; just replace it with its alt attribute.
2978:
2979: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
2980: $safeeval,undef,1);
2981: unless ($alttag) {
2982: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,
2983: undef,1);
2984: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2985: $code);
2986: }
2987: $currentstring.='\begin{center} \fbox{Java Applet: '.$alttag.
2988: '.}\end{center}';
2989:
2990: # Turn stuff back on that we can't be inside of.
2991:
2992: if ($restart_sub) {
2993: $currentstring .= &start_sub($target, $token, $tagstack,
2994: $parstack, $parser, $safeeval);
2995: }
2996: if ($restart_sup) {
2997: $currentstring .= &start_sup($target, $token, $tagstack,
2998: $parstack, $parser, $safeeval);
2999: }
3000: }
3001: return $currentstring;
3002: }
3003:
3004: sub end_applet {
3005: my ($target,$token) = @_;
3006: my $currentstring = '';
3007: if ($target eq 'web' || $target eq 'webgrade') {
3008: $currentstring = $token->[2];
3009: } elsif ($target eq 'tex') {
3010: }
3011: return $currentstring;
3012: }
3013:
3014: #-- <embed> tag (end tag optional/required)
3015: sub start_embed {
3016: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3017: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
3018: &Apache::lonxml::extlink($src);
3019: my $currentstring = '';
3020: if ($target eq 'web' || $target eq 'webgrade') {
3021: $currentstring=&Apache::lonenc::encrypt_ref($token,{'src'=>$src});
3022: } elsif ($target eq 'tex') {
3023: }
3024: return $currentstring;
3025: }
3026:
3027: sub end_embed {
3028: my ($target,$token) = @_;
3029: my $currentstring = '';
3030: if ($target eq 'web' || $target eq 'webgrade') {
3031: $currentstring = $token->[2];
3032: } elsif ($target eq 'tex') {
3033: # ./.
3034: }
3035: return $currentstring;
3036: }
3037:
3038: #-- <param> tag (end tag forbidden)
3039: sub start_param {
3040: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3041: my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval,
3042: undef,1);
3043: if ($name =~/^cabbase$/i) {
3044: my $value=&Apache::lonxml::get_param('value',$parstack,
3045: $safeeval,undef,1);
3046: &Apache::lonxml::extlink($value);
3047: } elsif ($name eq 'flashvars') {
3048: if (lc(&Apache::lonxml::get_param('type',$parstack,$safeeval,-2,1))
3049: eq 'application/x-shockwave-flash') {
3050: my $launcher =
3051: &Apache::lonxml::get_param('data',$parstack,$safeeval,-2,1);
3052: if ($launcher) {
3053: &Apache::lonxml::extlink($launcher);
3054: }
3055: my $flashvars=&Apache::lonxml::get_param('value',$parstack,
3056: $safeeval,undef,1);
3057: if ($flashvars ne '') {
3058: foreach my $item (split(/\&/,$flashvars)) {
3059: my ($key,$value)=split(/=/,$item,2);
3060: if ($key eq 'content') {
3061: if ($value ne '') {
3062: my ($dir) = ($launcher =~ m{(.+/)[^/]+$});
3063: &Apache::lonxml::extlink($dir.$value);
3064: }
3065: } elsif ($key eq 'thumb') {
3066: if ($value ne '') {
3067: &Apache::lonxml::extlink($value);
3068: }
3069: }
3070: }
3071: }
3072: }
3073: }
3074: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
3075: if ($src ne '') {
3076: &Apache::lonxml::extlink($src);
3077: }
3078: my $currentstring = '';
3079: if ($target eq 'web' || $target eq 'webgrade') {
3080: my %toconvert;
3081: if ($src) { $toconvert{'src'}= $src; }
3082: if ($name=~/^cabbase$/i) {
3083: $toconvert{'value'}=&Apache::lonxml::get_param('value',$parstack,
3084: $safeeval,undef,1);
3085: }
3086: $currentstring = &Apache::lonenc::encrypt_ref($token,\%toconvert);
3087: } elsif ($target eq 'tex') {
3088: }
3089: return $currentstring;
3090: }
3091:
3092: sub end_param {
3093: my ($target,$token) = @_;
3094: my $currentstring = '';
3095: if ($target eq 'web' || $target eq 'webgrade') {
3096: $currentstring = $token->[2];
3097: } elsif ($target eq 'tex') {
3098: }
3099: return $currentstring;
3100: }
3101:
3102: #-- <allow> tag
3103: sub start_allow {
3104: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3105: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
3106: &Apache::lonxml::extlink($src);
3107:
3108: if ($target eq 'tex') { &image_replication($src); }
3109: my $result;
3110: if ($target eq 'edit') {
3111: $result .=&Apache::edit::tag_start($target,$token);
3112: $result .=&Apache::edit::text_arg('File Spec:','src',$token,70);
3113: $result .=&Apache::edit::end_row();#.&Apache::edit::start_spanning_row();
3114: } elsif ($target eq 'modified') {
3115: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
3116: $safeeval,'src');
3117: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
3118: }
3119: return $result;
3120: }
3121:
3122: sub end_allow {
3123: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3124: if ( $target eq 'edit') { return (&Apache::edit::end_table()); }
3125: return '';
3126: }
3127:
3128: #-- Frames (end tag required)
3129: #-- <frameset>
3130: sub start_frameset {
3131: my ($target,$token) = @_;
3132: my $currentstring = ''; # Close any pending para.
3133: if ($target eq 'web' || $target eq 'webgrade') {
3134: $currentstring =
3135: &Apache::loncommon::start_page($Apache::londefdef::title,
3136: $Apache::londefdef::head,
3137: {'add_entries' => $token->[2],
3138: # 'no_title' => 1,
3139: 'force_register' => 1,
3140: 'frameset' => 1,});
3141:
3142: }
3143: return $currentstring;
3144: }
3145:
3146: sub end_frameset {
3147: my ($target,$token) = @_;
3148: my $currentstring = '';
3149: if ($target eq 'web' || $target eq 'webgrade') {
3150: $currentstring = $token->[2];
3151: }
3152: return $currentstring;
3153: }
3154:
3155: #-- <xmp> (end tag required)
3156: sub start_xmp {
3157: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3158: my $currentstring = '';
3159: if ($target eq 'web' || $target eq 'webgrade') {
3160: $currentstring .= $token->[4];
3161: } elsif ($target eq 'tex') {
3162: $currentstring .= '\begin{verbatim}';
3163: }
3164: return $currentstring;
3165: }
3166:
3167: sub end_xmp {
3168: my ($target,$token) = @_;
3169: my $currentstring = '';
3170: if ($target eq 'web' || $target eq 'webgrade') {
3171: $currentstring .= $token->[2];
3172: } elsif ($target eq 'tex') {
3173: $currentstring .= '\end{verbatim}';
3174: }
3175: return $currentstring;
3176: }
3177:
3178: #-- <pre> (end tag required)
3179: sub start_pre {
3180: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3181: my $currentstring = &end_p(); # close off pending <p>
3182: if ($target eq 'web' || $target eq 'webgrade') {
3183: $currentstring .= $token->[4];
3184: } elsif ($target eq 'tex') {
3185: $currentstring .= '\begin{verbatim}';
3186: &Apache::lonxml::disable_LaTeX_substitutions();
3187: }
3188: return $currentstring;
3189: }
3190:
3191: sub end_pre {
3192: my ($target,$token) = @_;
3193: my $currentstring = '';
3194: if ($target eq 'web' || $target eq 'webgrade') {
3195: $currentstring .= $token->[2];
3196: } elsif ($target eq 'tex') {
3197: $currentstring .= '\end{verbatim}';
3198: &Apache::lonxml::enable_LaTeX_substitutions();
3199: }
3200: return $currentstring;
3201: }
3202:
3203: #-- <insert>
3204: sub start_insert {
3205: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3206: my $currentstring = '';
3207: if ($target eq 'web' || $target eq 'webgrade') {
3208: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
3209: $currentstring .= '<b>'.$display.'</b>';;
3210: }
3211: return $currentstring;
3212: }
3213:
3214: sub end_insert {
3215: my ($target,$token) = @_;
3216: my $currentstring = '';
3217: if ($target eq 'web' || $target eq 'webgrade') {
3218: $currentstring .= '';
3219: }
3220: return $currentstring;
3221: }
3222:
3223: #-- <externallink>
3224: sub start_externallink {
3225: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3226: my $currentstring = '';
3227: if ($target eq 'web' || $target eq 'webgrade') {
3228: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
3229: $currentstring .= '<b>'.$display.'</b>';;
3230: }
3231: return $currentstring;
3232: }
3233:
3234: sub end_externallink {
3235: my ($target,$token) = @_;
3236: my $currentstring = '';
3237: if ($target eq 'web' || $target eq 'webgrade') {
3238: $currentstring .= '';
3239: }
3240: return $currentstring;
3241: }
3242:
3243: #-- <blankspace heigth="">
3244: sub start_blankspace {
3245: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3246: my $currentstring = &end_p(); # closes off any unclosed <p>
3247: if ($target eq 'tex') {
3248: my $howmuch = &Apache::lonxml::get_param('heigth',$parstack,$safeeval,undef,1);
3249: $currentstring .= '\vskip '.$howmuch.' ';
3250: }
3251: return $currentstring;
3252: }
3253:
3254: sub end_blankspace {
3255: my ($target,$token) = @_;
3256: my $currentstring = '';
3257: if ($target eq 'tex') {
3258: $currentstring .= '';
3259: }
3260: return $currentstring;
3261: }
3262:
3263: #-- <abbr> tag (end tag required)
3264: sub start_abbr {
3265: my ($target,$token) = @_;
3266: my $currentstring = '';
3267: if ($target eq 'web' || $target eq 'webgrade') {
3268: $currentstring = $token->[4];
3269: }
3270: return $currentstring;
3271: }
3272:
3273: sub end_abbr {
3274: my ($target,$token) = @_;
3275: my $currentstring = '';
3276: if ($target eq 'web' || $target eq 'webgrade') {
3277: $currentstring = $token->[2];
3278: }
3279: return $currentstring;
3280: }
3281:
3282: #-- <acronym> tag (end tag required)
3283: sub start_acronym {
3284: my ($target,$token) = @_;
3285: my $currentstring = '';
3286: if ($target eq 'web' || $target eq 'webgrade') {
3287: $currentstring = $token->[4];
3288: }
3289: return $currentstring;
3290: }
3291:
3292: sub end_acronym {
3293: my ($target,$token) = @_;
3294: my $currentstring = '';
3295: if ($target eq 'web' || $target eq 'webgrade') {
3296: $currentstring = $token->[2];
3297: }
3298: return $currentstring;
3299: }
3300:
3301: #-- <area> tag (end tag forbidden)
3302: sub start_area {
3303: my ($target,$token) = @_;
3304: my $currentstring = '';
3305: if ($target eq 'web' || $target eq 'webgrade') {
3306: $currentstring = $token->[4];
3307: }
3308: return $currentstring;
3309: }
3310:
3311: sub end_area {
3312: my ($target,$token) = @_;
3313: my $currentstring = '';
3314: if ($target eq 'web' || $target eq 'webgrade') {
3315: $currentstring = $token->[2];
3316: }
3317: return $currentstring;
3318: }
3319:
3320: #-- <base> tag (end tag forbidden)
3321: sub start_base {
3322: my ($target,$token) = @_;
3323: my $currentstring = '';
3324: if ($target eq 'web' || $target eq 'webgrade') {
3325: $currentstring = $token->[4];
3326: }
3327: return $currentstring;
3328: }
3329:
3330: sub end_base {
3331: my ($target,$token) = @_;
3332: my $currentstring = '';
3333: if ($target eq 'web' || $target eq 'webgrade') {
3334: $currentstring = $token->[2];
3335: }
3336: return $currentstring;
3337: }
3338:
3339: #-- <bdo> tag (end tag required)
3340: sub start_bdo {
3341: my ($target,$token) = @_;
3342: my $currentstring = '';
3343: if ($target eq 'web' || $target eq 'webgrade') {
3344: $currentstring = $token->[4];
3345: }
3346: return $currentstring;
3347: }
3348:
3349: sub end_bdo {
3350: my ($target,$token) = @_;
3351: my $currentstring = '';
3352: if ($target eq 'web' || $target eq 'webgrade') {
3353: $currentstring = $token->[2];
3354: }
3355: return $currentstring;
3356: }
3357:
3358: #-- <bgsound> tag (end tag optional)
3359: sub start_bgsound {
3360: my ($target,$token) = @_;
3361: my $currentstring = '';
3362: if ($target eq 'web' || $target eq 'webgrade') {
3363: $currentstring = $token->[4];
3364: }
3365: return $currentstring;
3366: }
3367:
3368: sub end_bgsound {
3369: my ($target,$token) = @_;
3370: my $currentstring = '';
3371: if ($target eq 'web' || $target eq 'webgrade') {
3372: $currentstring = $token->[2];
3373: }
3374: return $currentstring;
3375: }
3376:
3377: #-- <blink> tag (end tag required)
3378: sub start_blink {
3379: my ($target,$token) = @_;
3380: my $currentstring = '';
3381: if ($target eq 'web' || $target eq 'webgrade') {
3382: $currentstring = $token->[4];
3383: }
3384: return $currentstring;
3385: }
3386:
3387: sub end_blink {
3388: my ($target,$token) = @_;
3389: my $currentstring = '';
3390: if ($target eq 'web' || $target eq 'webgrade') {
3391: $currentstring = $token->[2];
3392: }
3393: return $currentstring;
3394: }
3395:
3396: #-- <blockquote> tag (end tag required)
3397: sub start_blockquote {
3398: my ($target,$token) = @_;
3399: my $currentstring = &end_p(); # Close any unclosed <p>
3400: if ($target eq 'web' || $target eq 'webgrade') {
3401: $currentstring .= $token->[4];
3402: }
3403: if ($target eq 'tex') {
3404: $currentstring .= '\begin{quote}';
3405: }
3406: return $currentstring;
3407: }
3408:
3409: sub end_blockquote {
3410: my ($target,$token) = @_;
3411: my $currentstring = '';
3412: if ($target eq 'web' || $target eq 'webgrade') {
3413: $currentstring = $token->[2];
3414: }
3415: if ($target eq 'tex') {
3416: $currentstring = '\end{quote}';
3417: }
3418: return $currentstring;
3419: }
3420:
3421: #-- <button> tag (end tag required)
3422: sub start_button {
3423: my ($target,$token) = @_;
3424: my $currentstring = '';
3425: if ($target eq 'web' || $target eq 'webgrade') {
3426: $currentstring = $token->[4];
3427: }
3428: return $currentstring;
3429: }
3430:
3431: sub end_button {
3432: my ($target,$token) = @_;
3433: my $currentstring = '';
3434: if ($target eq 'web' || $target eq 'webgrade') {
3435: $currentstring = $token->[2];
3436: }
3437: return $currentstring;
3438: }
3439:
3440: #-- <caption> tag (end tag required)
3441: sub start_caption {
3442: my ($target,$token) = @_;
3443: my $currentstring = '';
3444: if ($target eq 'web' || $target eq 'webgrade') {
3445: $currentstring = $token->[4];
3446: }
3447: return $currentstring;
3448: }
3449:
3450: sub end_caption {
3451: my ($target,$token) = @_;
3452: my $currentstring = '';
3453: if ($target eq 'web' || $target eq 'webgrade') {
3454: $currentstring = $token->[2];
3455: }
3456: return $currentstring;
3457: }
3458:
3459: #-- <col> tag (end tag forbdden)
3460: sub start_col {
3461: my ($target,$token) = @_;
3462: my $currentstring = '';
3463: if ($target eq 'web' || $target eq 'webgrade') {
3464: $currentstring = $token->[4];
3465: }
3466: return $currentstring;
3467: }
3468:
3469: sub end_col {
3470: my ($target,$token) = @_;
3471: my $currentstring = '';
3472: if ($target eq 'web' || $target eq 'webgrade') {
3473: $currentstring = $token->[2];
3474: }
3475: return $currentstring;
3476: }
3477:
3478: #-- <colgroup tag (end tag optional)
3479: sub start_colgroup {
3480: my ($target,$token,$tagstack, $parstack, $parser, $safeeval, $style) = @_;
3481: my $currentstring = '';
3482: if ($target eq 'web' || $target eq 'webgrade') {
3483: $currentstring = $token->[4];
3484: }
3485: if ($target eq 'tex') {
3486: # TODO: Ensure this tag is in a table:
3487:
3488: # Fetch the attributes and build the hash for the
3489: # call to define_colgroup.
3490:
3491: my $span = &Apache::lonxml::get_param('span', $parstack, $safeeval);
3492: my $halign = &Apache::lonxml::get_param('halign', $parstack, $safeeval);
3493:
3494: my %colgroup_params;
3495: if ($span ne '') {
3496: $colgroup_params{'span'} = $span;
3497: }
3498: if ($halign ne '') {
3499: $colgroup_params{'halign'} = $halign;
3500: }
3501:
3502: my $table = $Apache::londefdef::table[-1];
3503: $table->define_colgroup(\%colgroup_params);
3504:
3505: }
3506: return $currentstring;
3507: }
3508:
3509: sub end_colgroup {
3510: my ($target,$token) = @_;
3511: my $currentstring = '';
3512: if ($target eq 'web' || $target eq 'webgrade') {
3513: $currentstring = $token->[2];
3514: }
3515: return $currentstring;
3516: }
3517:
3518:
3519: #-- <del> tag (end tag required)
3520: sub start_del {
3521: my ($target,$token) = @_;
3522: my $currentstring = '';
3523: if ($target eq 'web' || $target eq 'webgrade') {
3524: $currentstring = $token->[4];
3525: } elsif ($target eq 'tex') {
3526: &disable_para();
3527: $currentstring .= '\st{';
3528: }
3529: return $currentstring;
3530: }
3531:
3532: sub end_del {
3533: my ($target,$token) = @_;
3534: my $currentstring = '';
3535: if ($target eq 'web' || $target eq 'webgrade') {
3536: $currentstring = $token->[2];
3537: } elsif ($target eq 'tex') {
3538: &enable_para();
3539: $currentstring = '}';
3540: }
3541: return $currentstring;
3542: }
3543:
3544: #-- <fieldset> tag (end tag required)
3545: sub start_fieldset {
3546: my ($target,$token) = @_;
3547: my $currentstring = '';
3548: if ($target eq 'web' || $target eq 'webgrade') {
3549: $currentstring = $token->[4];
3550: }
3551: return $currentstring;
3552: }
3553:
3554: sub end_fieldset {
3555: my ($target,$token) = @_;
3556: my $currentstring = '';
3557: if ($target eq 'web' || $target eq 'webgrade') {
3558: $currentstring = $token->[2];
3559: }
3560: return $currentstring;
3561: }
3562:
3563: #-- <frame> tag (end tag forbidden)
3564: sub start_frame {
3565: my ($target,$token) = @_;
3566: my $currentstring = '';
3567: if ($target eq 'web' || $target eq 'webgrade') {
3568: $currentstring = $token->[4];
3569: }
3570: return $currentstring;
3571: }
3572:
3573: sub end_frame {
3574: my ($target,$token) = @_;
3575: my $currentstring = '';
3576: if ($target eq 'web' || $target eq 'webgrade') {
3577: $currentstring = $token->[2];
3578: }
3579: return $currentstring;
3580: }
3581:
3582: #-- <iframe> tag (end tag required)
3583: sub start_iframe {
3584: my ($target,$token) = @_;
3585: my $currentstring = '';
3586: if ($target eq 'web' || $target eq 'webgrade') {
3587: my ($src,$url,$query);
3588: if ($token->[2]->{'src'}) {
3589: $src = $token->[2]->{'src'};
3590: } elsif ($token->[2]->{'SRC'}) {
3591: $src = $token->[2]->{'SRC'};
3592: }
3593: if ($src) {
3594: ($url,$query) = ($src =~ /^([^?]+)\??([^?]*)$/);
3595: if ($query =~ /inhibitmenu=yes/) {
3596: $currentstring = $token->[4];
3597: } else {
3598: my $inhibit;
3599: if ($url =~ m{^[^/.].*\.x?html?$}) {
3600: $inhibit = 1;
3601: } elsif ($url =~ m{^/(uploaded|res)/.*\.x?html?$}) {
3602: $inhibit = 1;
3603: }
3604: if ($inhibit) {
3605: $currentstring = '<iframe ';
3606: foreach my $attrib (@{$token->[3]}) {
3607: if (lc($attrib) eq 'src') {
3608: if ($query) {
3609: $query.='&inhibitmenu=yes';
3610: } else {
3611: $query = 'inhibitmenu=yes';
3612: }
3613: $currentstring .= 'src="'.$url.'?'.$query.'" ';
3614: } else {
3615: $currentstring .= lc($attrib).'="'.$token->[2]->{$attrib}.'" ';
3616: }
3617: }
3618: $currentstring =~ s/\s+$//;
3619: if ($token->[4] =~ m{/>$}) {
3620: $currentstring .= ' />';
3621: } else {
3622: $currentstring .= '>';
3623: }
3624: } else {
3625: $currentstring = $token->[4];
3626: }
3627: }
3628: if (($url !~ m{^https?://}) && ($env{'request.course.id'})) {
3629: my $docuri = &Apache::lonnet::hreflocation('',$env{'request.filename'});
3630: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
3631: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
3632: if ($url =~ m{^([^/]|/uploaded/)}) {
3633: my $cleanhref = &clean_docs_httpref($url,$docuri,$cdom,$cnum);
3634: if ($cleanhref) {
3635: &Apache::lonxml::extlink($cleanhref);
3636: }
3637: } elsif (($url =~ m{/res/$LONCAPA::domain_re/}) && ($docuri =~ m{^\Q/uploaded/$cdom/$cnum/docs/\E})) {
3638: if (!&Apache::lonnet::allowed('bre',$url)) {
3639: if (&Apache::lonnet::is_on_map($url)) {
3640: &Apache::lonxml::extlink($url);
3641: }
3642: }
3643: }
3644: }
3645: } else {
3646: $currentstring = $token->[4];
3647: }
3648: }
3649: return $currentstring;
3650: }
3651:
3652: sub end_iframe {
3653: my ($target,$token) = @_;
3654: my $currentstring = '';
3655: if ($target eq 'web' || $target eq 'webgrade') {
3656: $currentstring = $token->[2];
3657: }
3658: return $currentstring;
3659: }
3660:
3661: #-- <ins> tag (end tag required)
3662: sub start_ins {
3663: my ($target,$token) = @_;
3664: my $currentstring = '';
3665: if ($target eq 'web' || $target eq 'webgrade') {
3666: $currentstring = $token->[4];
3667: }
3668: return $currentstring;
3669: }
3670:
3671: sub end_ins {
3672: my ($target,$token) = @_;
3673: my $currentstring = '';
3674: if ($target eq 'web' || $target eq 'webgrade') {
3675: $currentstring = $token->[2];
3676: }
3677: return $currentstring;
3678: }
3679:
3680: #-- <isindex> tag (end tag forbidden)
3681: sub start_isindex {
3682: my ($target,$token) = @_;
3683: my $currentstring = '';
3684: if ($target eq 'web' || $target eq 'webgrade') {
3685: $currentstring = $token->[4];
3686: }
3687: return $currentstring;
3688: }
3689:
3690: sub end_isindex {
3691: my ($target,$token) = @_;
3692: my $currentstring = '';
3693: if ($target eq 'web' || $target eq 'webgrade') {
3694: $currentstring = $token->[2];
3695: }
3696: return $currentstring;
3697: }
3698:
3699: #-- <keygen> tag (end tag forbidden)
3700: sub start_keygen {
3701: my ($target,$token) = @_;
3702: my $currentstring = '';
3703: if ($target eq 'web' || $target eq 'webgrade') {
3704: $currentstring = $token->[4];
3705: }
3706: return $currentstring;
3707: }
3708:
3709: sub end_keygen {
3710: my ($target,$token) = @_;
3711: my $currentstring = '';
3712: if ($target eq 'web' || $target eq 'webgrade') {
3713: $currentstring = $token->[2];
3714: }
3715: return $currentstring;
3716: }
3717:
3718: #-- <label> tag
3719: sub start_label {
3720: my ($target,$token) = @_;
3721: my $currentstring = '';
3722: if ($target eq 'web' || $target eq 'webgrade') {
3723: $currentstring = $token->[4];
3724: }
3725: return $currentstring;
3726: }
3727:
3728: sub end_label {
3729: my ($target,$token) = @_;
3730: my $currentstring = '';
3731: if ($target eq 'web' || $target eq 'webgrade') {
3732: $currentstring = $token->[2];
3733: }
3734: return $currentstring;
3735: }
3736:
3737: #-- <layer> tag (end tag required)
3738: sub start_layer {
3739: my ($target,$token) = @_;
3740: my $currentstring = '';
3741: if ($target eq 'web' || $target eq 'webgrade') {
3742: $currentstring = $token->[4];
3743: }
3744: return $currentstring;
3745: }
3746:
3747: sub end_layer {
3748: my ($target,$token) = @_;
3749: my $currentstring = '';
3750: if ($target eq 'web' || $target eq 'webgrade') {
3751: $currentstring = $token->[2];
3752: }
3753: return $currentstring;
3754: }
3755:
3756: #-- <legend> tag (end tag required)
3757: sub start_legend {
3758: my ($target,$token) = @_;
3759: my $currentstring = '';
3760: if ($target eq 'web' || $target eq 'webgrade') {
3761: $currentstring = $token->[4];
3762: }
3763: return $currentstring;
3764: }
3765:
3766: sub end_legend {
3767: my ($target,$token) = @_;
3768: my $currentstring = '';
3769: if ($target eq 'web' || $target eq 'webgrade') {
3770: $currentstring = $token->[2];
3771: }
3772: return $currentstring;
3773: }
3774:
3775: #-- <link> tag (end tag forbidden)
3776: sub start_link {
3777: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3778: my $currentstring = '';
3779: if ($target eq 'web' || $target eq 'webgrade') {
3780: my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
3781: undef,1);
3782: &Apache::lonxml::extlink($href);
3783: $currentstring = $token->[4];
3784: }
3785: return $currentstring;
3786: }
3787:
3788: sub end_link {
3789: my ($target,$token) = @_;
3790: my $currentstring = '';
3791: if ($target eq 'web' || $target eq 'webgrade') {
3792: $currentstring = $token->[2];
3793: }
3794: return $currentstring;
3795: }
3796:
3797: #-- <marquee> tag (end tag optional)
3798: sub start_marquee {
3799: my ($target,$token) = @_;
3800: my $currentstring = '';
3801: if ($target eq 'web' || $target eq 'webgrade') {
3802: $currentstring = $token->[4];
3803: }
3804: return $currentstring;
3805: }
3806:
3807: sub end_marquee {
3808: my ($target,$token) = @_;
3809: my $currentstring = '';
3810: if ($target eq 'web' || $target eq 'webgrade') {
3811: $currentstring = $token->[2];
3812: }
3813: return $currentstring;
3814: }
3815:
3816: #-- <multicol> tag (end tag required)
3817: sub start_multicol {
3818: my ($target,$token) = @_;
3819: my $currentstring = &end_p(); # Close any pending <p>
3820: if ($target eq 'web' || $target eq 'webgrade') {
3821: $currentstring .= $token->[4];
3822: }
3823: return $currentstring;
3824: }
3825:
3826: sub end_multicol {
3827: my ($target,$token) = @_;
3828: my $currentstring = '';
3829: if ($target eq 'web' || $target eq 'webgrade') {
3830: $currentstring = $token->[2];
3831: }
3832: return $currentstring;
3833: }
3834:
3835: #-- <nobr> tag (end tag required)
3836: sub start_nobr {
3837: my ($target,$token) = @_;
3838: my $currentstring = '';
3839: if ($target eq 'web' || $target eq 'webgrade') {
3840: $currentstring = $token->[4];
3841: } elsif ($target eq 'tex') {
3842: $currentstring='\mbox{';
3843: }
3844: return $currentstring;
3845: }
3846:
3847: sub end_nobr {
3848: my ($target,$token) = @_;
3849: my $currentstring = '';
3850: if ($target eq 'web' || $target eq 'webgrade') {
3851: $currentstring = $token->[2];
3852: } elsif ($target eq 'tex') {
3853: $currentstring='}';
3854: }
3855: return $currentstring;
3856: }
3857:
3858: #-- <noembed> tag (end tag required)
3859: sub start_noembed {
3860: my ($target,$token) = @_;
3861: my $currentstring = '';
3862: if ($target eq 'web' || $target eq 'webgrade') {
3863: $currentstring = $token->[4];
3864: }
3865: return $currentstring;
3866: }
3867:
3868: sub end_noembed {
3869: my ($target,$token) = @_;
3870: my $currentstring = '';
3871: if ($target eq 'web' || $target eq 'webgrade') {
3872: $currentstring = $token->[2];
3873: }
3874: return $currentstring;
3875: }
3876:
3877: #-- <noframes> tag (end tag required)
3878: sub start_noframes {
3879: my ($target,$token) = @_;
3880: my $currentstring = '';
3881: if ($target eq 'web' || $target eq 'webgrade') {
3882: $currentstring = $token->[4];
3883: }
3884: return $currentstring;
3885: }
3886:
3887: sub end_noframes {
3888: my ($target,$token) = @_;
3889: my $currentstring = '';
3890: if ($target eq 'web' || $target eq 'webgrade') {
3891: $currentstring = $token->[2];
3892: }
3893: return $currentstring;
3894: }
3895:
3896: #-- <nolayer> tag (end tag required)
3897: sub start_nolayer {
3898: my ($target,$token) = @_;
3899: my $currentstring = '';
3900: if ($target eq 'web' || $target eq 'webgrade') {
3901: $currentstring = $token->[4];
3902: }
3903: return $currentstring;
3904: }
3905:
3906: sub end_nolayer {
3907: my ($target,$token) = @_;
3908: my $currentstring = '';
3909: if ($target eq 'web' || $target eq 'webgrade') {
3910: $currentstring = $token->[2];
3911: }
3912: return $currentstring;
3913: }
3914:
3915: #-- <noscript> tag (end tag required)
3916: sub start_noscript {
3917: my ($target,$token) = @_;
3918: my $currentstring = '';
3919: if ($target eq 'web' || $target eq 'webgrade') {
3920: $currentstring = $token->[4];
3921: }
3922: return $currentstring;
3923: }
3924:
3925: sub end_noscript {
3926: my ($target,$token) = @_;
3927: my $currentstring = '';
3928: if ($target eq 'web' || $target eq 'webgrade') {
3929: $currentstring = $token->[2];
3930: }
3931: return $currentstring;
3932: }
3933:
3934: #-- <object> tag (end tag required)
3935: sub start_object {
3936: my ($target,$token) = @_;
3937: my $currentstring = '';
3938: if ($target eq 'web' || $target eq 'webgrade') {
3939: $currentstring = $token->[4];
3940: }
3941: return $currentstring;
3942: }
3943:
3944: sub end_object {
3945: my ($target,$token) = @_;
3946: my $currentstring = '';
3947: if ($target eq 'web' || $target eq 'webgrade') {
3948: $currentstring = $token->[2];
3949: }
3950: return $currentstring;
3951: }
3952:
3953: #-- <optgroup> tag (end tag required)
3954: sub start_optgroup {
3955: my ($target,$token) = @_;
3956: my $currentstring = '';
3957: if ($target eq 'web' || $target eq 'webgrade') {
3958: $currentstring = $token->[4];
3959: }
3960: return $currentstring;
3961: }
3962:
3963: sub end_optgroup {
3964: my ($target,$token) = @_;
3965: my $currentstring = '';
3966: if ($target eq 'web' || $target eq 'webgrade') {
3967: $currentstring = $token->[2];
3968: }
3969: return $currentstring;
3970: }
3971:
3972: #-- <samp> tag (end tag required)
3973: sub start_samp {
3974: my ($target,$token) = @_;
3975: my $currentstring = '';
3976: if ($target eq 'web' || $target eq 'webgrade') {
3977: $currentstring = $token->[4];
3978: } elsif ($target eq 'tex') {
3979: $currentstring='\texttt{';
3980: }
3981: return $currentstring;
3982: }
3983:
3984: sub end_samp {
3985: my ($target,$token) = @_;
3986: my $currentstring = '';
3987: if ($target eq 'web' || $target eq 'webgrade') {
3988: $currentstring = $token->[2];
3989: } elsif ($target eq 'tex') {
3990: $currentstring='}';
3991: }
3992: return $currentstring;
3993: }
3994:
3995: #-- <server> tag
3996: sub start_server {
3997: my ($target,$token) = @_;
3998: my $currentstring = '';
3999: if ($target eq 'web' || $target eq 'webgrade') {
4000: $currentstring = $token->[4];
4001: }
4002: return $currentstring;
4003: }
4004:
4005: sub end_server {
4006: my ($target,$token) = @_;
4007: my $currentstring = '';
4008: if ($target eq 'web' || $target eq 'webgrade') {
4009: $currentstring = $token->[2];
4010: }
4011: return $currentstring;
4012: }
4013:
4014: #-- <spacer> tag (end tag forbidden)
4015: sub start_spacer {
4016: my ($target,$token) = @_;
4017: my $currentstring = &end_p(); # Close off any open <p> tag.
4018: if ($target eq 'web' || $target eq 'webgrade') {
4019: $currentstring .= $token->[4];
4020: }
4021: return $currentstring;
4022: }
4023:
4024: sub end_spacer {
4025: my ($target,$token) = @_;
4026: my $currentstring = '';
4027: if ($target eq 'web' || $target eq 'webgrade') {
4028: $currentstring = $token->[2];
4029: }
4030: return $currentstring;
4031: }
4032:
4033: #-- <span> tag (end tag required)
4034: sub start_span {
4035: my ($target,$token) = @_;
4036: my $currentstring = '';
4037: if ($target eq 'web' || $target eq 'webgrade') {
4038: $currentstring = $token->[4];
4039: }
4040: return $currentstring;
4041: }
4042:
4043: sub end_span {
4044: my ($target,$token) = @_;
4045: my $currentstring = '';
4046: if ($target eq 'web' || $target eq 'webgrade') {
4047: $currentstring = $token->[2];
4048: }
4049: return $currentstring;
4050: }
4051:
4052: #-- <tbody> tag (end tag optional)
4053: sub start_tbody {
4054: my ($target,$token) = @_;
4055: my $currentstring = '';
4056: if ($target eq 'web' || $target eq 'webgrade') {
4057: $currentstring = $token->[4];
4058: }
4059: if ($target eq 'tex') {
4060: # TODO: Ensure this tag is within a table:
4061:
4062: my $table = $Apache::londefdef::table[-1];
4063: $table->start_body();
4064: }
4065: return $currentstring;
4066: }
4067:
4068: sub end_tbody {
4069: my ($target,$token) = @_;
4070: my $currentstring = '';
4071: if ($target eq 'web' || $target eq 'webgrade') {
4072: $currentstring = $token->[2];
4073: }
4074: if($target eq 'tex') {
4075: # TODO: Ensure this tag is within a table:
4076:
4077: my $table = $Apache::londefdef::table[-1];
4078: $table->end_body();
4079: }
4080: return $currentstring;
4081: }
4082:
4083: #-- <tfoot> tag (end tag optional)
4084: sub start_tfoot {
4085: my ($target,$token) = @_;
4086: my $currentstring = '';
4087: if ($target eq 'web' || $target eq 'webgrade') {
4088: $currentstring = $token->[4];
4089: }
4090: if ($target eq 'tex') {
4091: # TODO: ensure this is within a table tag.
4092: my $table = $Apache::londefdef::table[-1];
4093: $table->start_foot();
4094: }
4095: return $currentstring;
4096: }
4097:
4098: sub end_tfoot {
4099: my ($target,$token) = @_;
4100: my $currentstring = '';
4101: if ($target eq 'web' || $target eq 'webgrade') {
4102: $currentstring = $token->[2];
4103: }
4104: if ($target eq 'tex') {
4105: # TODO: Ensure this is in side a table
4106: my $table = $Apache::londefdef::table[-1];
4107: $table->end_foot();
4108: }
4109: return $currentstring;
4110: }
4111:
4112: #-- <thead> tag (end tag optional)
4113: sub start_thead {
4114: my ($target,$token) = @_;
4115: my $currentstring = '';
4116: if ($target eq 'web' || $target eq 'webgrade') {
4117: $currentstring = $token->[4];
4118: }
4119: if ($target eq 'tex') {
4120: # Assume we're in a table... TODO: Verify that and ignore tag if not.
4121: my $table = $Apache::londefdef::table[-1];
4122: $table->start_head();
4123: }
4124: return $currentstring;
4125: }
4126:
4127: sub end_thead {
4128: my ($target,$token) = @_;
4129: my $currentstring = '';
4130: if ($target eq 'web' || $target eq 'webgrade') {
4131: $currentstring = $token->[2];
4132: }
4133: if ($target eq 'tex') {
4134: # TODO: Verify we are in a table and ignore tag if not.
4135:
4136: my $table = $Apache::londefdef::table[-1];
4137: $table->end_head();
4138: }
4139: return $currentstring;
4140: }
4141:
4142: #-- <var> tag
4143: sub start_var {
4144: my ($target,$token) = @_;
4145: my $currentstring = '';
4146: if ($target eq 'web' || $target eq 'webgrade') {
4147: $currentstring = $token->[4];
4148: } elsif ($target eq 'tex') {
4149: $currentstring = '\textit{';
4150: }
4151: return $currentstring;
4152: }
4153:
4154: sub end_var {
4155: my ($target,$token) = @_;
4156: my $currentstring = '';
4157: if ($target eq 'web' || $target eq 'webgrade') {
4158: $currentstring = $token->[2];
4159: } elsif ($target eq 'tex') {
4160: $currentstring = '}';
4161: }
4162: return $currentstring;
4163: }
4164:
4165: #-- <wbr> tag (end tag forbidden)
4166: sub start_wbr {
4167: my ($target,$token) = @_;
4168: my $currentstring = '';
4169: if ($target eq 'web' || $target eq 'webgrade') {
4170: $currentstring = $token->[4];
4171: }
4172: return $currentstring;
4173: }
4174:
4175: sub end_wbr {
4176: my ($target,$token) = @_;
4177: my $currentstring = '';
4178: if ($target eq 'web' || $target eq 'webgrade') {
4179: $currentstring = $token->[2];
4180: }
4181: return $currentstring;
4182: }
4183:
4184: #-- <hideweboutput> tag
4185: sub start_hideweboutput {
4186: my ($target,$token) = @_;
4187: if ($target eq 'web' || $target eq 'webgrade') {
4188: &Apache::lonxml::startredirection();
4189: }
4190: return '';
4191: }
4192:
4193: sub end_hideweboutput {
4194: my ($target,$token) = @_;
4195: my $currentstring = '';
4196: if ($target eq 'web' || $target eq 'webgrade') {
4197: $currentstring = &Apache::lonxml::endredirection();
4198: }
4199: return '';
4200: }
4201:
4202:
4203: sub image_replication {
4204: my $src = shift;
4205: if (not -e $src) { &Apache::lonnet::repcopy($src); }
4206: #replicates eps or ps
4207: my $epssrc = my $pssrc = $src;
4208: $epssrc =~ s/\.(gif|jpg|jpeg|png)$/.eps/i;
4209: $pssrc =~ s/\.(gif|jpg|jpeg|png)$/.ps/i;
4210: if (not -e $epssrc && not -e $pssrc) {
4211: my $result=&Apache::lonnet::repcopy($epssrc);
4212: if ($result ne 'ok') { &Apache::lonnet::repcopy($pssrc); }
4213: }
4214: return '';
4215: }
4216:
4217:
4218:
4219: sub resize_image {
4220: my ($height_param, $width_param, $scaling,
4221: $parstack, $safeeval, $depth, $cis) = @_;
4222:
4223: # First apply the scaling...
4224:
4225: $height_param = $height_param * $scaling;
4226: $width_param = $width_param * $scaling;
4227:
4228: #do we have any specified LaTeX size of the picture?
4229: my $toget='TeXwidth';
4230: if ($cis) {
4231: $toget=lc($toget);
4232: }
4233: my $TeXwidth = &Apache::lonxml::get_param($toget,$parstack,
4234: $safeeval,$depth,$cis);
4235: $toget='TeXheight'; if ($cis) { $toget=lc($toget); }
4236: my $TeXheight = &Apache::lonxml::get_param($toget,$parstack,
4237: $safeeval,$depth,$cis);
4238: #do we have any specified web size of the picture?
4239: my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval,
4240: $depth,1);
4241: if ($TeXwidth) {
4242: my $old_width_param=$width_param;
4243: if ($TeXwidth=~/(\d+)\s*\%/) {
4244: $width_param = $1*$env{'form.textwidth'}/100;
4245: } else {
4246: $width_param = $TeXwidth;
4247: }
4248: if ($TeXheight) {
4249: $height_param = $TeXheight;
4250: } elsif ($old_width_param) {
4251: $height_param=$TeXwidth/$old_width_param*$height_param;
4252: }
4253: } elsif ($TeXheight) {
4254: $height_param = $TeXheight;
4255: if ($height_param) {
4256: $width_param = $TeXheight/$height_param*$width_param;
4257: }
4258: } elsif ($width) {
4259: my $old_width_param=$width_param;
4260: $width_param = $width*$scaling;
4261: if ($old_width_param) {
4262: $height_param=$width_param/$old_width_param*$height_param;
4263: }
4264: }
4265: if ($width_param > $env{'form.textwidth'}) {
4266: my $old_width_param=$width_param;
4267: $width_param =0.95*$env{'form.textwidth'};
4268: if ($old_width_param) {
4269: $height_param=$width_param/$old_width_param*$height_param;
4270: }
4271: }
4272:
4273: return ($height_param, $width_param);
4274: }
4275:
4276: sub image_size {
4277: my ($src,$scaling,$parstack,$safeeval,$depth,$cis)=@_;
4278:
4279: #size of image from gif/jpg/jpeg/png
4280: my $ressrc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
4281: if (-e $ressrc) {
4282: $src = $ressrc;
4283: }
4284: my $image = Image::Magick->new;
4285: my $current_figure = $image->Read($src);
4286: my $width_param = $image->Get('width');
4287: my $height_param = $image->Get('height');
4288: &Apache::lonxml::debug("Image magick says: $src : Height = $height_param width = $width_param");
4289: undef($image);
4290:
4291: ($height_param, $width_param) = &resize_image($height_param, $width_param,
4292: $scaling, $parstack, $safeeval,
4293: $depth, $cis);
4294:
4295: return ($height_param, $width_param);
4296: }
4297:
4298: sub image_width {
4299: my ($height, $width) = &image_size(@_);
4300: return $width;
4301: }
4302: # Not yet 100% sure this is correct in all circumstances..
4303: # due to my uncertainty about mods to image_size.
4304: #
4305: sub image_height {
4306: my ($height, $width) = &image_size(@_);
4307: return $height;
4308: }
4309:
4310: sub get_eps_image {
4311: my ($src)=@_;
4312: my $orig_src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1], $src);
4313:
4314: # In order to prevent the substitution of the alt text, we need to
4315: # be sure the orig_src file is on system now so:
4316:
4317: if (! -e $orig_src) {
4318: &Apache::lonnet::repcopy($orig_src); # Failure is not completely fatal.
4319: }
4320: &Apache::lonxml::debug("get_eps_image: Original image: $orig_src");
4321: my ($spath, $sname, $sext) = &fileparse($src, qr/\.(bmp|gif|png|jpg|jpeg)/i);
4322: $src=~s/\.(bmp|gif|png|jpg|jpeg)$/\.eps/i;
4323: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
4324: &Apache::lonxml::debug("Filelocation gives: $src");
4325: if (! -e $src) {
4326: &Apache::lonxml::debug("$src does not exist");
4327: if (&Apache::lonnet::repcopy($src) ne 'ok' ) {
4328: &Apache::lonxml::debug("Repcopy of $src failed (1)");
4329: #if replication failed try to find ps file
4330: $src=~s/\.eps$/\.ps/;
4331: &Apache::lonxml::debug("Now looking for $src");
4332: #if no ps file try to replicate it.
4333: my $didrepcopy = &Apache::lonnet::repcopy($src);
4334: &Apache::lonxml::debug("repcopy of $src ... $didrepcopy");
4335: if ( (not -e $src) ||
4336: ($didrepcopy ne 'ok')) {
4337: &Apache::lonxml::debug("Failed to find or replicate $src");
4338:
4339: #if replication failed try to produce eps file dynamically
4340: $src=~s/\.ps$/\.eps/;
4341: if (open(FILE,">>/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat")) {
4342: my $newsrc=$orig_src;
4343: $newsrc =~ s|(.*)/res/|/home/httpd/html/res/|;
4344: &Apache::lonxml::debug("queueing $newsrc for dynamic eps production.");
4345: print FILE ("$newsrc\n");
4346: close(FILE);
4347: }
4348: $src=~s|/home/httpd/html/res|/home/httpd/prtspool|;
4349: $src=~s|/home/httpd/html/priv/[^/]+/([^/]*)/|/home/httpd/prtspool/$1/|;
4350: if ($sext ne "") { # Put the ext. back in to uniquify.
4351: $src =~ s/\.eps$/$sext.eps/;
4352: }
4353:
4354: }
4355:
4356: }
4357: } else {
4358: # If the postscript file has spaces in its name,
4359: # LaTeX will gratuitiously vomit. Therefore
4360: # queue such files for copy with " " replaced by "_".
4361: # printout.pm will know them by their .ps or .eps extensions.
4362: my $newsrc = $orig_src;
4363: $newsrc =~ s|(.*)/res/|/home/httpd/html/res/|;
4364: open(FILE,">>/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat");
4365: print FILE "$src\n";
4366: close FILE;
4367: $src=~s|/home/httpd/html/res|/home/httpd/prtspool|;
4368: $src=~s|/home/httpd/html/priv/[^/]+/([^/]*)/|/home/httpd/prtspool/$1/|;
4369: }
4370: my ($path,$file)=($src=~m|(.*)/([^/]*)$|);
4371: $path =~ s/ /\_/g;
4372: $file =~ s/ /\_/g;
4373: &Apache::lonxml::debug("get_eps_image returning: $path / $file<BR />");
4374: return ($path.'/',$file);
4375: }
4376:
4377: sub eps_generation {
4378: my ($src,$file,$width_param) = @_;
4379: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat";
4380: if (open(my $tmpfile,">>$filename")) {
4381: print $tmpfile "$src\n";
4382: close($tmpfile);
4383: }
4384: my $newsrc = $src;
4385: $newsrc =~ s/(\.bmp|\.gif|\.jpg|\.jpeg)$/\.eps/i;
4386: $newsrc=~s{/home/httpd/html/res}{};
4387: $newsrc=~s{/home/httpd/html/priv/[^/]+/($LONCAPA::username_re)/}{/$1/};
4388: $newsrc=~s{/\./}{/};
4389: $newsrc=~s{/([^/]+)\.(ps|eps)}{/};
4390: if ($newsrc=~m{/home/httpd/lonUsers/}) {
4391: $newsrc=~s{/home/httpd/lonUsers}{};
4392: $newsrc=~s{/($LONCAPA::domain_re)/./././}{/$1/};
4393: }
4394: if ($newsrc=~m{/userfiles/}) {
4395: return ' \graphicspath{{'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4396: } else {
4397: return ' \graphicspath{{/home/httpd/prtspool'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4398: }
4399: }
4400:
4401: sub file_path {
4402: my $src=shift;
4403: my ($file,$path);
4404: if ($src =~ m!(.*)/([^/]*)$!) {
4405: $file = $2;
4406: $path = $1.'/';
4407: }
4408: return $file,$path;
4409: }
4410:
4411:
4412: sub recalc {
4413: my $argument = shift;
4414: if (not $argument=~/(mm|cm|in|pc|pt)/) {return $argument.' mm';}
4415: $argument=~/\s*(\d+\.?\d*)\s*(mm|cm|in|pc|pt)/;
4416: my $value=$1;
4417: my $units=$2;
4418: if ($units eq 'cm') {
4419: $value*=10;
4420: } elsif ($units eq 'in') {
4421: $value*=25.4;
4422: } elsif ($units eq 'pc') {
4423: $value*=(25.4*12/72.27);
4424: } elsif ($units eq 'pt') {
4425: $value*=(25.4/72.27);
4426: }
4427: return $value.' mm';
4428: }
4429:
4430: sub LATEX_length {
4431: my $garbage=shift;
4432: $garbage=~s/^\s+$//;
4433: $garbage=~s/^\s+(\S.*)/$1/;#space before
4434: $garbage=~s/(.*\S)\s+$/$1/;#space after
4435: $garbage=~s/(\s)+/$1/;#only one space
4436: $garbage=~s/(\\begin{([^\}]+)}|\\end{([^\}]+)})//g;#remove LaTeX \begin{...} and \end{...}
4437: $garbage=~s/(\$\_\{|\$\_|\$\^{|\$\^|\}\$)//g;#remove $_{,$_,$^{,$^,}$
4438: $garbage=~s/([^\\])\$/$1/g;#$
4439: $garbage=~s/(\\ensuremath\{\_\{|\\ensuremath\{\_|\\ensuremath\{\^{|\\ensuremath\{\^|\})//g;#remove \ensuremath{...}
4440: $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;
4441: $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;
4442: $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;
4443: $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;
4444: $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;
4445: $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;
4446: $garbage=~s/(\\hat{([^}]+)}|\\check{([^}]+)}|\\dot{([^}]+)}|\\breve{([^}]+)}|\\acute{([^}]+)}|\\ddot{([^}]+)}|\\grave{([^}]+)}|\\tilde{([^}]+)}|\\mathring{([^}]+)}|\\bar{([^}]+)}|\\vec{([^}]+)})/$1/g;
4447: #remove some other LaTeX command
4448: $garbage=~s|\\(\w+)\\|\\|g;
4449: $garbage=~s|\\(\w+)(\s*)|$2|g;
4450: $garbage=~s|\+|11|g;
4451: my $value=length($garbage);
4452: return $value;
4453: }
4454:
4455:
4456: sub align_latex_image {
4457: my ($align, $latex_rendering, $image, $width, $height) = @_;
4458: my $currentstring; # The 1/2 wrapped image.
4459: my $closure; # The closure of the wrappage.
4460:
4461: # if it's none just return it back
4462: if ($latex_rendering eq 'none') {
4463: return ($image,'');
4464: }
4465:
4466: # If there's an alignment specification we need to honor it here.
4467: # For the horizontal alignments, we will also honor the
4468: # value of the latex specfication. The default is parbox,
4469: # and that's used for illegal values too.
4470: #
4471: # Even though we set a default alignment value, the user
4472: # could have given us an illegal value. In that case we
4473: # just use the default alignment of bottom..
4474: $currentstring = '';
4475: if ($align eq "top") {
4476: $currentstring .= '\raisebox{-'.$height.'mm}{'.$image;
4477: $closure = '}';
4478: } elsif (($align eq "center") || ($align eq "middle")) { # Being kind
4479: my $offset = $height/2;
4480: $currentstring .= '\raisebox{-'.$offset.'mm}{'.$image;
4481: $closure = '}';
4482: } elsif ($align eq "left") {
4483: if ($latex_rendering eq "parpic") {
4484: $currentstring .= '\parpic[l]{'.$image;
4485: $closure = '}';
4486: } elsif ($latex_rendering eq "parbox") {
4487: $currentstring .= '\begin{minipage}[l]{'.$width.'mm}'
4488: .$image;
4489: $closure = '\end{minipage}';
4490: } elsif ($latex_rendering eq "wrapfigure"
4491: || $latex_rendering ne 'none') { # wrapfig render
4492: $currentstring .=
4493: '\begin{wrapfigure}{l}{'.$width.'mm}'
4494: .'\scalebox{1.0}{'.$image;
4495: $closure = '}\end{wrapfigure}';
4496: }
4497: } elsif ($align eq "right") {
4498: if ($latex_rendering eq "parpic") {
4499: $currentstring .= '\parpic[r]{'.$image;
4500: $closure = '}';
4501: } elsif ($latex_rendering eq "parbox") {
4502: $currentstring .= '\begin{minipage}[r]{'.$width.'mm}'
4503: .$image;
4504: $closure = '\end{minipage}';
4505: } elsif ($latex_rendering eq "wrapfigure"
4506: || $latex_rendering ne 'none') { # wrapfig render
4507: $currentstring .=
4508: '\begin{wrapfigure}{r}{'.$width.'mm}'
4509: .'\scalebox{1.0}{'.$image;
4510: $closure = '}\end{wrapfigure}';
4511: }
4512: } else { # Bottom is also default.
4513: # $currentstring = '\raisebox{'.$height.'mm}{'.$image.'}';
4514: $currentstring .= "{$image";
4515: $closure = '}';
4516: }
4517: return ($currentstring, $closure);
4518: }
4519:
4520:
4521: sub is_inside_of {
4522: my ($tagstack, $tag) = @_;
4523: my @stack = @$tagstack;
4524: for (my $i = ($#stack - 1); $i >= 0; $i--) {
4525: if ($stack[$i] eq $tag) {
4526: return 1;
4527: }
4528: }
4529: return 0;
4530: }
4531:
4532:
4533: #
4534: # This sub provides the typical LaTeX prefix matter for tex output:
4535: #
4536: sub latex_header {
4537: my ($mode) = @_;
4538: my $currentstring = '';
4539:
4540: $currentstring .=
4541: "\n% &Apache::lonxml::londefdef \n" .
4542: '\documentclass[letterpaper,twoside]{article}\raggedbottom';
4543: if (($env{'form.latex_type'}=~'batchmode') ||
4544: (!$env{'request.role.adv'}) ||
4545: ($mode eq 'batchmode')) {$currentstring .='\batchmode';}
4546: $currentstring .= '\newcommand{\keephidden}[1]{}'.
4547: '\renewcommand{\deg}{$^{\circ}$}'.
4548: '\usepackage{multirow}'.
4549: '\usepackage{longtable}'.
4550: '\usepackage{textcomp}'.
4551: '\usepackage{makeidx}'.
4552: '\usepackage[dvips]{graphicx}'.
4553: '\usepackage{wrapfig}'.
4554: '\usepackage{picins}'.
4555: '\usepackage[T1]{fontenc}'."\n".
4556: '\usepackage{lmodern}'."\n".
4557: '\usepackage[postscript]{ucs}'."\n".
4558: '\usepackage[utf8x]{inputenc}'."\n".
4559: '\usepackage{pifont}' ."\n".
4560: '\usepackage{latexsym}'."\n".
4561: '\usepackage{epsfig}'.
4562: "\\usepackage{xtab}\n".
4563: "\\usepackage{tabularx}\n".
4564: "\\usepackage{booktabs}\n".
4565: "\\usepackage{array}\n".
4566: "\\usepackage{colortbl}\n".
4567: "\\usepackage{xcolor}\n".
4568: '\usepackage{calc}'.
4569: '\usepackage{amsmath}'.
4570: '\usepackage{soul}'.
4571: '\usepackage{amssymb}'.
4572: '\usepackage{amsfonts}'.
4573: '\usepackage{amsthm}'.
4574: '\usepackage{amscd}'
4575: .'\usepackage{picins}\usepackage{calc}'."\n". # From lonprintout.pm
4576: '\usepackage[T1]{fontenc}'."\n".
4577: '\usepackage{lmodern}'."\n".
4578: '\usepackage[postscript]{ucs}'."\n".
4579: '\usepackage[utf8x]{inputenc}'."\n".
4580: '\usepackage{pifont}' . "\n";
4581:
4582: if($env{'form.pdfFormFields'} eq 'yes') {
4583: $currentstring .= '\usepackage{hyperref}'.
4584: '\usepackage{eforms}'.
4585: '\usepackage{tabularx}';
4586: }
4587:
4588: $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}}'.
4589: '\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}}';
4590: $currentstring .= '\begin{document}';
4591:
4592: return $currentstring;
4593:
4594: }
4595:
4596: sub clean_docs_httpref {
4597: my ($href,$docuri,$cdom,$cnum) = @_;
4598: if ($docuri eq '') {
4599: $docuri = &Apache::lonnet::hreflocation('',$env{'request.filename'});
4600: }
4601: if ($cdom eq '') {
4602: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
4603: }
4604: if ($cnum eq '') {
4605: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
4606: }
4607: my $cleanhref;
4608: if ($docuri =~ m{^(\Q/uploaded/$cdom/$cnum/docs/\E)(.+/)[^/]+$}) {
4609: my $prefix = $1;
4610: my $relpath = $2;
4611: my ($hrefpath,$fname);
4612: if ($href =~ m{^/}) {
4613: if ($href =~ m{^\Q$prefix\E(.+/)([^/]+)$}) {
4614: $hrefpath = $1;
4615: $fname = $2;
4616: } else {
4617: return $cleanhref;
4618: }
4619: } else {
4620: if ($href =~ m{/}) {
4621: (my $path,$fname) = ($href =~ m{^(.*)/([^/]*)$});
4622: $hrefpath = $relpath.$path;
4623: if ($path eq '') {
4624: $hrefpath =~ s{/$}{};
4625: }
4626: } else {
4627: $fname = $href;
4628: $hrefpath = $relpath;
4629: $hrefpath =~ s{/$}{};
4630: }
4631: }
4632: if ($fname ne '') {
4633: my $cleanrelpath;
4634: foreach my $dir (split(/\//,$hrefpath)) {
4635: next if ($dir eq '.');
4636: if ($dir eq '..') {
4637: $cleanrelpath =~ s{([^/]+/)$}{};
4638: } else {
4639: $cleanrelpath .= $dir.'/';
4640: }
4641: }
4642: if ($cleanrelpath ne '') {
4643: $cleanhref = $prefix.$cleanrelpath.$fname;
4644: } else {
4645: $cleanhref = $prefix.$fname;
4646: }
4647: }
4648: }
4649: return $cleanhref;
4650: }
4651:
4652: =pod
4653:
4654: =head1 NAME
4655:
4656: Apache::londefdef.pm
4657:
4658: =head1 SYNOPSIS
4659:
4660: Tags Default Definition Module
4661:
4662: This is part of the LearningOnline Network with CAPA project
4663: described at http://www.lon-capa.org.
4664:
4665:
4666: =head1 NOTABLE SUBROUTINES
4667:
4668: =over
4669:
4670: =item start_hideweboutput()
4671:
4672: =item end_hideweboutput()
4673:
4674: =item image_replication()
4675:
4676: =item resize_image()
4677:
4678: Get correct sizing parameter for an image given
4679: it's initial ht. and wid. This allows sizing of
4680: images that are generated on-the-fly (e.g. gnuplot)
4681: as well as serving as a utility for image_size.
4682:
4683: Parameter:
4684: height_param
4685: width_param - Initial picture dimensions.
4686: scaling - A scale factor.
4687: parstack, - the current stack of tag attributes
4688: from the xml parser
4689: safeeval, - pointer to the safespace
4690: depth, - from what level in the stack to look for attributes
4691: (assumes -1 if unspecified)
4692: cis - look for attrubutes case insensitively
4693: (assumes false)
4694:
4695: Returns:
4696: height, width - new dimensions.
4697:
4698: =item image_size()
4699:
4700: =item image_width()
4701:
4702: =item image_height()
4703:
4704: =item get_eps_image()
4705:
4706: =item eps_generation()
4707:
4708: =item file_path()
4709:
4710: =item recalc()
4711:
4712: Converts a measurement in to mm from any of
4713: the other valid LaTeX units of measure.
4714: If the units of measure are missing from the
4715: parameter, it is assumed to be in and returned
4716: with mm units of measure
4717:
4718: =item LATEX_length()
4719:
4720: =item align_latex_image()
4721:
4722: Wrap image 'stuff' inside of the LaTeX required to implement
4723: alignment:
4724: align_tex_image(align, latex_rendering, image)
4725: Where:
4726: align - The HTML alignment specification.
4727: latex_rendering - rendering hint for latex.
4728: image - The LaTeX needed to insert the image itsef.
4729: width,height - dimensions of the image.
4730: Returns:
4731: The 1/2 wrapped image and the stuff required to close the
4732: wrappage. This allows e.g. randomlabel to insert more stuff
4733: into the closure.
4734:
4735:
4736: =item is_inside_of($tagstack, $tag)
4737: This sub returns true if the current state of Xml processing is inside of the tag.
4738: Parameters:
4739: tagstack - The tagstack from the parser.
4740: tag - The tag (without the <>'s.).
4741: Sample usage:
4742: if (is_inside_of($tagstack "table")) {
4743: I'm in a table....
4744: }
4745:
4746: =item clean_docs_httpref($href,$docuri,$cdom,$cnum)
4747: HTML pages uploaded to a course which contain dependencies either from iframes,
4748: javascript files or objects (FlashPlayerSwf, MediaSrc, XMPSrc, ConfigurationSrc,
4749: and PosterImageSrc) for which dependency is another file uploaded to the same
4750: course.
4751:
4752: Required input:
4753: href - dependency (either a relative URL, or an absolute URL)
4754: Optional inputs:
4755: docuri - URL of HTML page containing the dependency
4756: cdom - Course domain
4757: cnum - CourseID
4758:
4759: Output:
4760: returns an absolute URL constructed from the href provided, and the calling context.
4761: (this will be null, if the URL does not begin: /uploaded/$cdom/$cnum/docs/).
4762:
4763: =back
4764:
4765: =cut
4766:
4767:
4768: 1;
4769: __END__
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