File:
[LON-CAPA] /
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xml /
londefdef.pm
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1.446:
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Sun Sep 22 15:35:45 2013 UTC (10 years, 8 months ago) by
raeburn
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- Suppress display of header items when displaying iframe in a file in
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1: # The LearningOnline Network with CAPA
2: # Tags Default Definition Module
3: #
4: # $Id: londefdef.pm,v 1.446 2013/09/22 15:35:45 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: $currentstring =
589: &Apache::loncommon::start_page($Apache::londefdef::title,
590: $Apache::londefdef::head
591: .$extra_head,
592: {'add_entries' => $token->[2],
593: # 'no_title' => 1,
594: 'force_register' => 1});
595:
596: my $header = '';
597: if ($env{'request.state'} ne 'published' &&
598: $env{'request.state'} ne 'construct') {
599: $header=&Apache::lonmenu::constspaceform();
600: }
601: if ($env{'request.state'} ne 'published') {
602: unless ($env{'form.inhibitmenu'} eq 'yes') {
603: $header.=&edit_controls();
604: }
605: }
606: if ($env{'request.state'} eq 'construct') {
607: unless ($env{'form.inhibitmenu'} eq 'yes') {
608: $currentstring.=&Apache::loncommon::head_subbox(
609: &Apache::loncommon::CSTR_pageheader()
610: .$header);
611: }
612: } elsif ($env{'request.state'} eq 'edit') {
613: $currentstring.=&Apache::loncommon::head_subbox($header);
614: }
615: $currentstring.=&Apache::lonxml::message_location();
616: } elsif ($target eq 'tex') {
617: $currentstring = ''; # '\begin{document}' is in header.
618: }
619:
620: return $currentstring;
621: }
622:
623: sub edit_controls {
624: my ($nochgview) = @_;
625: my $result .= '
626: <form method="post" action="">
627: <div class="LC_edit_problem_header">';
628: unless ($nochgview) {
629: $result .= '
630: <div class="LC_edit_problem_header_row1">'.
631: &Apache::lonxml::renderingoptions().'
632: <input type="submit" name="changeproblemmode" value="'.&mt('Change View').'" />
633: </div>';
634: }
635: $result .= '
636: <div><input type="submit" name="editmode" accesskey="e" value="'.&mt('Edit').'" />';
637: if (($env{'request.course.id'}) && ($env{'form.forceedit'})) {
638: my $url=&Apache::lonnet::hreflocation('',$env{'request.filename'});
639: if ($url =~ /\.html?$/i) {
640: my ($cdom,$cnum);
641: if ($env{'request.course.id'}) {
642: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
643: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
644: if ($env{'request.filename'} =~ m{/userfiles/supplemental/default|\d+/}) {
645: if (&Apache::lonnet::is_course_upload($env{'request.filename'},
646: $cnum,$cdom)) {
647: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
648: ['folderpath','title']);
649: }
650: }
651: }
652: my ($symb,$itemtitle,$displayfile,$caller);
653: if ($url =~ m{^/uploaded/$cdom/$cnum/portfolio/syllabus/}) {
654: $itemtitle = &mt('Syllabus');
655: $caller = "/public/$cdom/$cnum/syllabus";
656: } else {
657: $caller = $url;
658: ($symb,$itemtitle,$displayfile) =
659: &Apache::lonxml::get_courseupload_hierarchy($url,
660: $env{'form.folderpath'},
661: $env{'form.title'});
662: }
663: if (($symb ne '') || ($env{'httpref.'.$url} ne '') ||
664: ($url =~ m{^/uploaded/$cdom/$cnum/portfolio/syllabus/})) {
665: $result .= (' ' x 3).
666: &Apache::lonhtmlcommon::dependencies_button()."\n".
667: &Apache::lonhtmlcommon::dependencycheck_js($symb,
668: $itemtitle,$url,$env{'form.folderpath'},$caller)."\n";
669: }
670: }
671: }
672: $result .= '</div>
673: </div>
674: </form>
675: ';
676: return $result;
677: }
678:
679: sub end_body {
680: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
681: my $currentstring = &end_p(); # Close off unclosed <p>
682: if ($target eq 'web' || $target eq 'webgrade') {
683: $currentstring .= &Apache::loncommon::end_page({'discussion' => 1});
684: } elsif ($target eq 'tex') {
685: $currentstring .= '\strut\newline\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\newline\noindent \end{document}';
686: }
687: return $currentstring;
688: }
689:
690: # \begin{center} causes a new paragprah spacing that looks odd inside
691: # of a table cell. Same at the end of a \center but with a slightly
692: # larger space .. hence center_correction and center_end_correction.
693: #
694: sub center_correction { return '\vspace*{-6 mm}'; }
695: sub center_end_correction { return '\vspace*{-7 mm}'; }
696:
697: #-- <center> tag (end tag required)
698: sub start_center {
699: my ($target,$token,$tagstack) = @_;
700: my $currentstring = &end_p(); # Close off any prior para.
701: if ($target eq 'web' || $target eq 'webgrade') {
702: $currentstring .= $token->[4];
703: } elsif ($target eq 'tex') {
704: if (&is_inside_of($tagstack, "table")) {
705: $currentstring .= ¢er_correction();
706: }
707: $currentstring .= '\begin{center}';
708: }
709: return $currentstring;
710: }
711:
712: sub end_center {
713: my ($target,$token,$tagstack) = @_;
714: my $currentstring = '';
715: if ($target eq 'web' || $target eq 'webgrade') {
716: $currentstring = $token->[2];
717: } elsif ($target eq 'tex') {
718: $currentstring = '\end{center}';
719: if (&is_inside_of($tagstack, "table")) {
720: $currentstring .= ¢er_end_correction();
721: }
722: }
723: return $currentstring;
724: }
725:
726: #-- <b> tag (end tag required)
727: # NOTE: In TeX mode disables internal <p>
728: sub start_b {
729: my ($target,$token) = @_;
730: my $currentstring = '';
731: if ($target eq 'web' || $target eq 'webgrade') {
732: $currentstring = $token->[4];
733: } elsif ($target eq 'tex') {
734: &disable_para();
735: $currentstring .= '\textbf{';
736: }
737: return $currentstring;
738: }
739:
740: sub end_b {
741: my ($target,$token) = @_;
742: my $currentstring = '';
743: if ($target eq 'web' || $target eq 'webgrade') {
744: $currentstring = $token->[2];
745: } elsif ($target eq 'tex') {
746: &enable_para();
747: $currentstring = '}';
748: }
749: return $currentstring;
750: }
751:
752: #-- <strong> tag (end tag required)
753: # NOTE: in TeX mode disables internal <p>
754: sub start_strong {
755: my ($target,$token) = @_;
756: my $currentstring = '';
757: if ($target eq 'web' || $target eq 'webgrade') {
758: $currentstring = $token->[4];
759: } elsif ($target eq 'tex') {
760: &disable_para();
761: $currentstring = '\textbf{';
762: }
763: return $currentstring;
764: }
765:
766: sub end_strong {
767: my ($target,$token) = @_;
768: my $currentstring = '';
769: if ($target eq 'web' || $target eq 'webgrade') {
770: $currentstring = $token->[2];
771: } elsif ($target eq 'tex') {
772: &enable_para();
773: $currentstring = '}';
774: }
775: return $currentstring;
776: }
777:
778: #-- <h1> tag (end tag required)
779: sub start_h1 {
780: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
781: my $currentstring = &end_p(); # Close off any prior para.
782: if ($target eq 'web' || $target eq 'webgrade') {
783: $currentstring .= $token->[4];
784: } elsif ($target eq 'tex') {
785: my $pre;
786: my $align=lc(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1));
787: if ($align eq 'center') {
788: $pre='\begin{center}';
789: } elsif ($align eq 'left') {
790: $pre='\rlap{';
791: } elsif ($align eq 'right') {
792: $pre=' \hfill \llap{';
793: }
794: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
795: if (not defined $TeXsize) {$TeXsize="large";}
796: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
797: } elsif ($target eq 'meta') {
798: $currentstring.='<subject>';
799: &start_output($target);
800: }
801: return $currentstring;
802: }
803:
804: sub end_h1 {
805: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
806: my $currentstring = '';
807: if ($target eq 'web' || $target eq 'webgrade') {
808: $currentstring .= $token->[2];
809: } elsif ($target eq 'tex') {
810: my $post='\vskip 0 mm ';
811: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
812: if ($align eq 'center') {
813: $post='\end{center}';
814: } elsif ($align eq 'left') {
815: $post='} \hfill'.'\vskip 0 mm ';
816: } elsif ($align eq 'right') {
817: $post='}'.'\vskip 0 mm ';
818: }
819: $currentstring .= '}}'.$post;
820: } elsif ($target eq 'meta') {
821: &end_output($target);
822: $currentstring='</subject>';
823: }
824: return $currentstring;
825: }
826:
827: #-- <h2> tag
828: sub start_h2 {
829: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
830: my $currentstring = &end_p(); # Close off any prior para.
831: if ($target eq 'web' || $target eq 'webgrade') {
832: $currentstring .= $token->[4];
833: } elsif ($target eq 'tex') {
834: my $pre;
835: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
836: if ($align eq 'center') {
837: $pre='\begin{center}';
838: } elsif ($align eq 'left') {
839: $pre='\rlap{';
840: } elsif ($align eq 'right') {
841: $pre=' \hfill \llap{';
842: }
843: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
844: if (not defined $TeXsize) {$TeXsize="large";}
845: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
846: }
847: return $currentstring;
848: }
849:
850: sub end_h2 {
851: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
852: my $currentstring = '';
853: if ($target eq 'web' || $target eq 'webgrade') {
854: $currentstring .= $token->[2];
855: } elsif ($target eq 'tex') {
856: my $post='\vskip 0 mm ';
857: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
858: if ($align eq 'center') {
859: $post='\end{center}';
860: } elsif ($align eq 'left') {
861: $post='} \hfill'.'\vskip 0 mm ';
862: } elsif ($align eq 'right') {
863: $post='}'.'\vskip 0 mm ';
864: }
865: $currentstring .= '}}'.$post;
866: }
867: return $currentstring;
868: }
869:
870: #-- <h3> tag
871: sub start_h3 {
872: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
873: my $currentstring = &end_p(); # Close off any prior para.
874: if ($target eq 'web' || $target eq 'webgrade') {
875: $currentstring .= $token->[4];
876: } elsif ($target eq 'tex') {
877: my $pre;
878: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
879: if ($align eq 'center') {
880: $pre='\begin{center}';
881: } elsif ($align eq 'left') {
882: $pre='\rlap{';
883: } elsif ($align eq 'right') {
884: $pre=' \hfill \llap{';
885: }
886: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
887: if (not defined $TeXsize) {$TeXsize="large";}
888: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
889: }
890: return $currentstring;
891: }
892:
893: sub end_h3 {
894: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
895: my $currentstring = '';
896: if ($target eq 'web' || $target eq 'webgrade') {
897: $currentstring .= $token->[2];
898: } elsif ($target eq 'tex') {
899: my $post='\vskip 0 mm ';
900: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
901: if ($align eq 'center') {
902: $post='\end{center}';
903: } elsif ($align eq 'left') {
904: $post='} \hfill'.'\vskip 0 mm ';
905: } elsif ($align eq 'right') {
906: $post='}'.'\vskip 0 mm ';
907: }
908: $currentstring .= '}}'.$post;
909: }
910: return $currentstring;
911: }
912:
913: #-- <h4> tag
914: sub start_h4 {
915: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
916: my $currentstring = &end_p(); # Close off any prior para.
917: if ($target eq 'web' || $target eq 'webgrade') {
918: $currentstring .= $token->[4];
919: } elsif ($target eq 'tex') {
920: my $pre;
921: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
922: if ($align eq 'center') {
923: $pre='\begin{center}';
924: } elsif ($align eq 'left') {
925: $pre='\rlap{';
926: } elsif ($align eq 'right') {
927: $pre=' \hfill \llap{';
928: }
929: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
930: if (not defined $TeXsize) {$TeXsize="large";}
931: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
932: }
933: return $currentstring;
934: }
935:
936: sub end_h4 {
937: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
938: my $currentstring = '';
939: if ($target eq 'web' || $target eq 'webgrade') {
940: $currentstring .= $token->[2];
941: } elsif ($target eq 'tex') {
942: my $post='\vskip 0 mm ';
943: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
944: if ($align eq 'center') {
945: $post='\end{center}';
946: } elsif ($align eq 'left') {
947: $post='} \hfill'.'\vskip 0 mm ';
948: } elsif ($align eq 'right') {
949: $post='}'.'\vskip 0 mm ';
950: }
951: $currentstring .= '}}'.$post;
952: }
953: return $currentstring;
954: }
955:
956: #-- <h5> tag
957: sub start_h5 {
958: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
959: my $currentstring = &end_p(); # Close off any prior paras.
960: if ($target eq 'web' || $target eq 'webgrade') {
961: $currentstring .= $token->[4];
962: } elsif ($target eq 'tex') {
963: my $pre;
964: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
965: if ($align eq 'center') {
966: $pre='\begin{center}';
967: } elsif ($align eq 'left') {
968: $pre='\rlap{';
969: } elsif ($align eq 'right') {
970: $pre=' \hfill \llap{';
971: }
972: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
973: if (not defined $TeXsize) {$TeXsize="large";}
974: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
975: }
976: return $currentstring;
977: }
978:
979: sub end_h5 {
980: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
981: my $currentstring = '';
982: if ($target eq 'web' || $target eq 'webgrade') {
983: $currentstring .= $token->[2];
984: } elsif ($target eq 'tex') {
985: my $post='\vskip 0 mm ';
986: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
987: if ($align eq 'center') {
988: $post='\end{center}';
989: } elsif ($align eq 'left') {
990: $post='} \hfill'.'\vskip 0 mm ';
991: } elsif ($align eq 'right') {
992: $post='}'.'\vskip 0 mm ';
993: }
994: $currentstring .= '}}'.$post;
995: }
996: return $currentstring;
997: }
998:
999: #-- <h6> tag
1000: sub start_h6 {
1001: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1002: my $currentstring = &end_p(); # Close off any prior paras.
1003: if ($target eq 'web' || $target eq 'webgrade') {
1004: $currentstring .= $token->[4];
1005: } elsif ($target eq 'tex') {
1006: my $pre;
1007: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1008: if ($align eq 'center') {
1009: $pre='\begin{center}';
1010: } elsif ($align eq 'left') {
1011: $pre='\rlap{';
1012: } elsif ($align eq 'right') {
1013: $pre=' \hfill \llap{';
1014: }
1015: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
1016: if (not defined $TeXsize) {$TeXsize="large";}
1017: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1018: }
1019: return $currentstring;
1020: }
1021:
1022: sub end_h6 {
1023: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1024: my $currentstring = '';
1025: if ($target eq 'web' || $target eq 'webgrade') {
1026: $currentstring .= $token->[2];
1027: } elsif ($target eq 'tex') {
1028: my $post='\vskip 0 mm ';
1029: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1030: if ($align eq 'center') {
1031: $post='\end{center}';
1032: } elsif ($align eq 'left') {
1033: $post='} \hfill'.'\vskip 0 mm ';
1034: } elsif ($align eq 'right') {
1035: $post='}'.'\vskip 0 mm ';
1036: }
1037: $currentstring .= '}}'.$post;
1038: }
1039: return $currentstring;
1040: }
1041:
1042: #--- <cite> tag (end tag required)
1043: sub start_cite {
1044: my ($target,$token) = @_;
1045: my $currentstring = '';
1046: if ($target eq 'web' || $target eq 'webgrade') {
1047: $currentstring .= $token->[4];
1048: } elsif ($target eq 'tex') {
1049: $currentstring .= '\textit{';
1050: }
1051: return $currentstring;
1052: }
1053:
1054: sub end_cite {
1055: my ($target,$token) = @_;
1056: my $currentstring = '';
1057: if ($target eq 'web' || $target eq 'webgrade') {
1058: $currentstring .= $token->[2];
1059: } elsif ($target eq 'tex') {
1060: $currentstring .= '}';
1061: }
1062: return $currentstring;
1063: }
1064:
1065: #-- <i> tag (end tag required)
1066: sub start_i {
1067: my ($target,$token) = @_;
1068: my $currentstring = '';
1069: if ($target eq 'web' || $target eq 'webgrade') {
1070: $currentstring .= $token->[4];
1071: } elsif ($target eq 'tex') {
1072: $currentstring .= '\textit{';
1073: }
1074: return $currentstring;
1075: }
1076:
1077: sub end_i {
1078: my ($target,$token) = @_;
1079: my $currentstring = '';
1080: if ($target eq 'web' || $target eq 'webgrade') {
1081: $currentstring .= $token->[2];
1082: } elsif ($target eq 'tex') {
1083: $currentstring .= '}';
1084: }
1085: return $currentstring;
1086: }
1087:
1088: #-- <address> tag (end tag required)
1089: sub start_address {
1090: my ($target,$token) = @_;
1091: my $currentstring = '';
1092: if ($target eq 'web' || $target eq 'webgrade') {
1093: $currentstring .= $token->[4];
1094: } elsif ($target eq 'tex') {
1095: $currentstring .= '\textit{';
1096: }
1097: return $currentstring;
1098: }
1099:
1100: sub end_address {
1101: my ($target,$token) = @_;
1102: my $currentstring = '';
1103: if ($target eq 'web' || $target eq 'webgrade') {
1104: $currentstring .= $token->[2];
1105: } elsif ($target eq 'tex') {
1106: $currentstring .= '}';
1107: }
1108: return $currentstring;
1109: }
1110:
1111: #-- <dfn> tag (end tag required)
1112: sub start_dfn {
1113: my ($target,$token) = @_;
1114: my $currentstring = '';
1115: if ($target eq 'web' || $target eq 'webgrade') {
1116: $currentstring .= $token->[4];
1117: } elsif ($target eq 'tex') {
1118: $currentstring .= '\textit{';
1119: }
1120: return $currentstring;
1121: }
1122:
1123: sub end_dfn {
1124: my ($target,$token) = @_;
1125: my $currentstring = '';
1126: if ($target eq 'web' || $target eq 'webgrade') {
1127: $currentstring .= $token->[2];
1128: } elsif ($target eq 'tex') {
1129: $currentstring .= '}';
1130: }
1131: return $currentstring;
1132: }
1133:
1134: #-- <tt> tag (end tag required)
1135: sub start_tt {
1136: my ($target,$token) = @_;
1137: my $currentstring = '';
1138: if ($target eq 'web' || $target eq 'webgrade') {
1139: $currentstring .= $token->[4];
1140: } elsif ($target eq 'tex') {
1141: $currentstring .= '\texttt{';
1142: }
1143: return $currentstring;
1144: }
1145:
1146: sub end_tt {
1147: my ($target,$token) = @_;
1148: my $currentstring = '';
1149: if ($target eq 'web' || $target eq 'webgrade') {
1150: $currentstring .= $token->[2];
1151: } elsif ($target eq 'tex') {
1152: $currentstring .= '}';
1153: }
1154: return $currentstring;
1155: }
1156:
1157: #-- <kbd> tag (end tag required)
1158: sub start_kbd {
1159: my ($target,$token) = @_;
1160: my $currentstring = '';
1161: if ($target eq 'web' || $target eq 'webgrade') {
1162: $currentstring .= $token->[4];
1163: } elsif ($target eq 'tex') {
1164: $currentstring .= '\texttt{';
1165: }
1166: return $currentstring;
1167: }
1168:
1169: sub end_kbd {
1170: my ($target,$token) = @_;
1171: my $currentstring = '';
1172: if ($target eq 'web' || $target eq 'webgrade') {
1173: $currentstring .= $token->[2];
1174: } elsif ($target eq 'tex') {
1175: $currentstring .= '}';
1176: }
1177: return $currentstring;
1178: }
1179:
1180: #-- <code> tag (end tag required)
1181: sub start_code {
1182: my ($target,$token) = @_;
1183: my $currentstring = '';
1184: if ($target eq 'web' || $target eq 'webgrade') {
1185: $currentstring .= $token->[4];
1186: } elsif ($target eq 'tex') {
1187: $currentstring .= '\texttt{';
1188: }
1189: return $currentstring;
1190: }
1191:
1192: sub end_code {
1193: my ($target,$token) = @_;
1194: my $currentstring = '';
1195: if ($target eq 'web' || $target eq 'webgrade') {
1196: $currentstring .= $token->[2];
1197: } elsif ($target eq 'tex') {
1198: $currentstring .= '}';
1199: }
1200: return $currentstring;
1201: }
1202:
1203: #-- <em> tag (end tag required)
1204: sub start_em {
1205: my ($target,$token) = @_;
1206: my $currentstring = '';
1207: if ($target eq 'web' || $target eq 'webgrade') {
1208: $currentstring .= $token->[4];
1209: } elsif ($target eq 'tex') {
1210: $currentstring .= '\emph{';
1211: }
1212: return $currentstring;
1213: }
1214:
1215: sub end_em {
1216: my ($target,$token) = @_;
1217: my $currentstring = '';
1218: if ($target eq 'web' || $target eq 'webgrade') {
1219: $currentstring .= $token->[2];
1220: } elsif ($target eq 'tex') {
1221: $currentstring .= '}';
1222: }
1223: return $currentstring;
1224: }
1225:
1226: #-- <q> tag (end tag required)
1227: sub start_q {
1228: my ($target,$token) = @_;
1229: my $currentstring = '';
1230: if ($target eq 'web' || $target eq 'webgrade') {
1231: $currentstring .= $token->[4];
1232: } elsif ($target eq 'tex') {
1233: $currentstring .= '\emph{';
1234: }
1235: return $currentstring;
1236: }
1237:
1238: sub end_q {
1239: my ($target,$token) = @_;
1240: my $currentstring = '';
1241: if ($target eq 'web' || $target eq 'webgrade') {
1242: $currentstring .= $token->[2];
1243: } elsif ($target eq 'tex') {
1244: $currentstring .= '}';
1245: }
1246: return $currentstring;
1247: }
1248:
1249: # <p> is a bit strange since it does not require a closing </p>
1250: # However in latex, we must often output closing stuff to end
1251: # environments and {}'s etc. Therefore we do all the work
1252: # of figuring out the ending strings in the start tag processing,
1253: # and provide a mechanism to output the stop text external
1254: # to tag processing.
1255: #
1256: {
1257:
1258: my $closing_string = ''; # String required to close <p>
1259:
1260: # Some tags are <p> fragile meaning that <p> inside of them
1261: # does not work within TeX mode. This is managed via the
1262: # counter below:
1263: #
1264:
1265: my $para_disabled = 0;
1266:
1267: sub disable_para {
1268: $para_disabled++;
1269: }
1270: sub enable_para {
1271: $para_disabled--;
1272: }
1273:
1274:
1275: #-- <p> tag (end tag optional)
1276: #optional attribute - align="center|left|right"
1277: sub start_p {
1278: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1279: my $currentstring = '';
1280: if ($target eq 'web' || $target eq 'webgrade') {
1281: $currentstring .= &end_p(); # close off prior para if in progress.
1282: $currentstring .= $token->[4];
1283: if (! ($currentstring =~ /\//)) {
1284: $closing_string = '</p>'; # Deal correctly with <p /> e.g.
1285: }
1286: } elsif ($target eq 'tex' && !$para_disabled) {
1287:
1288: $currentstring .= &end_p(); # close off prior para if in progress.
1289: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1290: if ($align eq 'center') {
1291: $currentstring .='\begin{center}\par ';
1292: $closing_string = '\end{center}';
1293: if (&is_inside_of($tagstack, "table")) {
1294: $currentstring = ¢er_correction().$currentstring;
1295: }
1296: } elsif ($align eq 'right') {
1297: $currentstring.="\n".'{\flushright ';
1298: # $currentstring.='\makebox['.$env{'form.textwidth'}.']{\hfill\llap{';
1299: $closing_string= "}\n";
1300: } elsif ($align eq 'left') {
1301: $currentstring.= "\n".'{\flushleft ';
1302: # $currentstring.='\noindent\makebox['.$env{'form.textwidth'}.']{{';
1303: $closing_string = "}\n";
1304: } else {
1305: $currentstring.='\par ';
1306: if (&is_inside_of($tagstack, 'table')) {
1307: $closing_string = '\vskip 0pt'; # Seems to be consistent with <p> in tables.
1308: } else {
1309: $closing_string = '\strut\\\\\strut ';
1310: }
1311: }
1312:
1313: }
1314: return $currentstring;
1315: }
1316: #
1317: # End paragraph processing just requires that we output the
1318: # closing string that was saved and blank it.
1319: sub end_p {
1320: # Note only 'tex' mode uses disable_para and enable_para
1321: # so we don't need to know the target in the check below:
1322:
1323: if (!$para_disabled) {
1324: my $current_string = $closing_string;
1325: $closing_string = ''; # Not in a para anymore.
1326: return $current_string;
1327: } else {
1328: return '';
1329: }
1330:
1331: }
1332: }
1333: #-- <br> tag (end tag forbidden)
1334: sub start_br {
1335: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1336: my $currentstring = '';
1337: if ($target eq 'web' || $target eq 'webgrade') {
1338: $currentstring .= $token->[4];
1339: } elsif ($target eq 'tex') {
1340: my @tempo=@$tagstack;
1341: my $signal=0;
1342: # Not going to factor this to is_inside_of since that would require
1343: # multiple stack traversals.
1344: #
1345: for (my $i=$#tempo;$i>=0;$i--) {
1346: if (($tempo[$i] eq 'b') || ($tempo[$i] eq 'strong') ||
1347: ($tempo[$i] eq 'ol') || ($tempo[$i] eq 'ul')) {
1348: $signal=1;
1349: }
1350: if (($tempo[$i] eq 'td') || ($tempo[$i] eq 'th')) {
1351: $signal = 1;
1352: }
1353: }
1354: if ($signal != 1) {
1355: $currentstring .= '\strut \\\\ \strut ';
1356: }
1357:
1358: }
1359: return $currentstring;
1360: }
1361:
1362: sub end_br {
1363: my ($target,$token) = @_;
1364: my $currentstring = '';
1365: if ($target eq 'web' || $target eq 'webgrade') {
1366: $currentstring .= $token->[2];
1367: }
1368: return $currentstring;
1369: }
1370:
1371: #-- <big> tag (end tag required)
1372: sub start_big {
1373: my ($target,$token) = @_;
1374: my $currentstring = '';
1375: if ($target eq 'web' || $target eq 'webgrade') {
1376: $currentstring .= $token->[4];
1377: } elsif ($target eq 'tex') {
1378: $currentstring .= '{\large ';
1379: }
1380: return $currentstring;
1381: }
1382:
1383: sub end_big {
1384: my ($target,$token) = @_;
1385: my $currentstring = '';
1386: if ($target eq 'web' || $target eq 'webgrade') {
1387: $currentstring .= $token->[2];
1388: } elsif ($target eq 'tex') {
1389: $currentstring .= '}';
1390: }
1391: return $currentstring;
1392: }
1393:
1394: #-- <small> tag (end tag required)
1395: sub start_small {
1396: my ($target,$token) = @_;
1397: my $currentstring = '';
1398: if ($target eq 'web' || $target eq 'webgrade') {
1399: $currentstring .= $token->[4];
1400: } elsif ($target eq 'tex') {
1401: $currentstring .= '{\footnotesize ';
1402: }
1403: return $currentstring;
1404: }
1405:
1406: sub end_small {
1407: my ($target,$token) = @_;
1408: my $currentstring = '';
1409: if ($target eq 'web' || $target eq 'webgrade') {
1410: $currentstring .= $token->[2];
1411: } elsif ($target eq 'tex') {
1412: $currentstring .= '}';
1413: }
1414: return $currentstring;
1415: }
1416:
1417: #-- <basefont> tag (end tag forbidden)
1418: sub start_basefont {
1419: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1420: my $currentstring = '';
1421: if ($target eq 'web' || $target eq 'webgrade') {
1422: $currentstring = $token->[4];
1423: } elsif ($target eq 'tex') {
1424: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1425: if (defined $basesize) {
1426: $currentstring = '{\\'.$basesize.' ';
1427: }
1428: }
1429: return $currentstring;
1430: }
1431:
1432: sub end_basefont {
1433: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1434: my $currentstring = '';
1435: if ($target eq 'web' || $target eq 'webgrade') {
1436: $currentstring = $token->[4];
1437: } elsif ($target eq 'tex') {
1438: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1439: if (defined $basesize) {
1440: $currentstring = '}';
1441: }
1442: }
1443: return $currentstring;
1444: }
1445:
1446: #-- <font> tag (end tag required)
1447: sub start_font {
1448: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1449: my $currentstring = '';
1450: if ($target eq 'web' || $target eq 'webgrade') {
1451: my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
1452: $currentstring = $token->[4];
1453: } elsif ($target eq 'tex') {
1454: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1455: if (defined $fontsize) {
1456: $currentstring = '{\\'.$fontsize.' ';
1457: }
1458: }
1459: return $currentstring;
1460: }
1461:
1462: sub end_font {
1463: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1464: my $currentstring = '';
1465: if ($target eq 'web' || $target eq 'webgrade') {
1466: $currentstring = $token->[2];
1467: } elsif ($target eq 'tex') {
1468: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1469: if (defined $fontsize) {
1470: $currentstring = '}';
1471: }
1472: }
1473: return $currentstring;
1474: }
1475:
1476: #-- <strike> tag (end tag required)
1477: sub start_strike {
1478: my ($target,$token) = @_;
1479: my $currentstring = '';
1480: if ($target eq 'web' || $target eq 'webgrade') {
1481: $currentstring .= $token->[4];
1482: } elsif ($target eq 'tex') {
1483: &Apache::lonxml::startredirection();
1484: }
1485: return $currentstring;
1486: }
1487:
1488: sub end_strike {
1489: my ($target,$token) = @_;
1490: my $currentstring = '';
1491: if ($target eq 'web' || $target eq 'webgrade') {
1492: $currentstring .= $token->[2];
1493: } elsif ($target eq 'tex') {
1494: $currentstring=&Apache::lonxml::endredirection();
1495: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1496: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1497: $currentstring=~s/(\S)\s*$/$1\}/;
1498: }
1499: return $currentstring;
1500: }
1501:
1502: #-- <s> tag (end tag required)
1503: sub start_s {
1504: my ($target,$token) = @_;
1505: my $currentstring = '';
1506: if ($target eq 'web' || $target eq 'webgrade') {
1507: $currentstring .= $token->[4];
1508: } elsif ($target eq 'tex') {
1509: &Apache::lonxml::startredirection();
1510: }
1511: return $currentstring;
1512: }
1513:
1514: sub end_s {
1515: my ($target,$token) = @_;
1516: my $currentstring = '';
1517: if ($target eq 'web' || $target eq 'webgrade') {
1518: $currentstring .= $token->[2];
1519: } elsif ($target eq 'tex') {
1520: $currentstring=&Apache::lonxml::endredirection();
1521: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1522: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1523: $currentstring=~s/(\S)\s*$/$1\}/;
1524: }
1525: return $currentstring;
1526: }
1527:
1528: #-- <sub> tag (end tag required)
1529: sub start_sub {
1530: my ($target,$token) = @_;
1531: my $currentstring = '';
1532: if ($target eq 'web' || $target eq 'webgrade') {
1533: $currentstring .= $token->[4];
1534: } elsif ($target eq 'tex') {
1535: $currentstring .= '\raisebox{-\smallskipamount}{\scriptsize{';
1536: }
1537: return $currentstring;
1538: }
1539:
1540: sub end_sub {
1541: my ($target,$token) = @_;
1542: my $currentstring = '';
1543: if ($target eq 'web' || $target eq 'webgrade') {
1544: $currentstring .= $token->[2];
1545: } elsif ($target eq 'tex') {
1546: $currentstring .= '}}';
1547: }
1548: return $currentstring;
1549: }
1550:
1551: #-- <sup> tag (end tag required)
1552: sub start_sup {
1553: my ($target,$token) = @_;
1554: my $currentstring = '';
1555: if ($target eq 'web' || $target eq 'webgrade') {
1556: $currentstring .= $token->[4];
1557: } elsif ($target eq 'tex') {
1558: $currentstring .= '\raisebox{\smallskipamount}{\scriptsize{';
1559: }
1560: return $currentstring;
1561: }
1562:
1563: sub end_sup {
1564: my ($target,$token) = @_;
1565: my $currentstring = '';
1566: if ($target eq 'web' || $target eq 'webgrade') {
1567: $currentstring .= $token->[2];
1568: } elsif ($target eq 'tex') {
1569: $currentstring .= '}}';
1570: }
1571: return $currentstring;
1572: }
1573:
1574: #-- <hr> tag (end tag forbidden)
1575: sub start_hr {
1576: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1577: my $currentstring = &end_p(); # End enclosing para.
1578: if ($target eq 'web' || $target eq 'webgrade') {
1579: $currentstring .= $token->[4];
1580: } elsif ($target eq 'tex') {
1581:
1582: # <hr /> can't be inside of <sup><sub> thank you LaTeX.
1583: #
1584: my $restart_sub = 0;
1585: my $restart_sup = 0;
1586:
1587: # Since <sub> and <sup> are simple tags it's ok to turn off/on
1588: # using the start_ stop_ functions.. those tags only care about
1589: # $target.
1590:
1591: if (&is_inside_of($tagstack, "sub")) {
1592: $restart_sub = 1;
1593: $currentstring .= &end_sub($target, $token, $tagstack,
1594: $parstack, $parser, $safeeval);
1595: }
1596: if (&is_inside_of($tagstack, "sup")) {
1597: $restart_sup = 1;
1598: $currentstring .= &end_sup($target, $token, $tagstack,
1599: $parstack, $parser, $safeeval);
1600: }
1601:
1602: my $LaTeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1603: if (defined $LaTeXwidth) {
1604: if ($LaTeXwidth=~/^%/) {
1605: substr($LaTeXwidth,0,1)='';
1606: $LaTeXwidth=($LaTeXwidth/100).'\textwidth';
1607: }
1608: } else {
1609: $LaTeXwidth ='0.9\textwidth';
1610: }
1611: my ($pre,$post);
1612: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1613: if (($align eq 'center') || (not defined $align)) {
1614: $pre=''; $post='';
1615: } elsif ($align eq 'left') {
1616: $pre='\rlap{'; $post='} \hfill';
1617: } elsif ($align eq 'right') {
1618: $pre=' \hfill \llap{'; $post='}';
1619: }
1620: $currentstring .= ' \vskip 0 mm \noindent\makebox['.$LaTeXwidth.']{'.$pre.'\makebox['.
1621: $LaTeXwidth.'][b]{\hrulefill}'.$post.'}\vskip 0 mm ';
1622: # Turn stuff back on that we can't be inside of.
1623:
1624: if ($restart_sub) {
1625: $currentstring .= &start_sub($target, $token, $tagstack,
1626: $parstack, $parser, $safeeval);
1627: }
1628: if ($restart_sup) {
1629: $currentstring .= &start_sup($target, $token, $tagstack,
1630: $parstack, $parser, $safeeval);
1631: }
1632: }
1633: return $currentstring;
1634: }
1635:
1636: sub end_hr {
1637: my ($target,$token) = @_;
1638: my $currentstring = '';
1639: if ($target eq 'web' || $target eq 'webgrade') {
1640: $currentstring .= $token->[2];
1641: }
1642: return $currentstring;
1643: }
1644:
1645: #-- <div> tag (end tag required)
1646: {
1647:
1648: # Since div can be nested, the stack below is used
1649: # in 'tex' mode to store the ending strings
1650: # for the div stack.
1651:
1652: my @div_end_stack;
1653:
1654: sub start_div {
1655: my ($target,$token, $tagstack, $parstack, $parser, $safeeval) = @_;
1656: my $currentstring = &end_p(); # Close enclosing para.
1657: if ($target eq 'web' || $target eq 'webgrade') {
1658: $currentstring .= $token->[4];
1659: }
1660: if ($target eq 'tex') {
1661: # 4 possible alignments: left, right, center, and -missing-.
1662: # If inside a table row, we must let the table logic
1663: # do the alignment, however.
1664: #
1665:
1666: my $endstring = '';
1667:
1668: my $align = lc(&Apache::lonxml::get_param('align', $parstack,
1669: $safeeval, undef, 1));
1670: if ($align eq 'center') {
1671: $currentstring .= '\begin{center}';
1672: $endstring = '\end{center}';
1673: if (&is_inside_of($tagstack, "table")) {
1674: $currentstring = ¢er_correction().$currentstring;
1675: $endstring .= ¢er_end_correction();
1676: }
1677: }
1678: elsif ($align eq 'right') {
1679: $currentstring .= '\begin{flushright}';
1680: $endstring .= '\end{flushright}';
1681: } elsif ($align eq 'left') {
1682: $currentstring .= '\begin{flushleft}';
1683: $endstring = '\end{flushleft}';
1684: } else {
1685:
1686: }
1687: $currentstring .= "\n"; # For human readability.
1688: $endstring = "\n$endstring\n"; # For human readability
1689: push(@div_end_stack, $endstring);
1690: }
1691: return $currentstring;
1692: }
1693:
1694: sub end_div {
1695: my ($target,$token) = @_;
1696: my $currentstring = '';
1697: if ($target eq 'web' || $target eq 'webgrade') {
1698: $currentstring .= $token->[2];
1699: }
1700: if ($target eq 'tex') {
1701: my $endstring = pop @div_end_stack;
1702: $currentstring .= $endstring;
1703: }
1704: return $currentstring;
1705: }
1706: }
1707:
1708: #-- <a> tag (end tag required)
1709: sub start_a {
1710: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1711: my $currentstring = '';
1712: if ($target eq 'web' || $target eq 'webgrade') {
1713: my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
1714: undef,1);
1715: $currentstring=&Apache::lonenc::encrypt_ref($token,{'href'=>$href});
1716: if ($href =~ /\S/) {
1717: if ($href !~ m{^https?://}) {
1718: my $url=&Apache::lonnet::hreflocation('',$env{'request.filename'});
1719: my $linkurl;
1720: if ($href =~ m{^/uploaded/}) {
1721: $linkurl = $href;
1722: } elsif ($href =~ m{^[^/]}) {
1723: my $path = $url;
1724: $path =~ s{[^/]*$}{};
1725: $linkurl = $path.$href;
1726: }
1727: if ($linkurl =~ m{^/uploaded/}) {
1728: if (!&Apache::lonnet::allowed('bre',$linkurl)) {
1729: if (&Apache::lonnet::is_on_map($url)) {
1730: &Apache::lonxml::extlink($linkurl);
1731: }
1732: }
1733: }
1734: }
1735: }
1736: }
1737: return $currentstring;
1738: }
1739:
1740: sub end_a {
1741: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1742: my $currentstring = '';
1743: if ($target eq 'web' || $target eq 'webgrade') {
1744: $currentstring .= $token->[2];
1745: }
1746: if ($target eq 'tex') {
1747: my $href =
1748: &Apache::lonxml::get_param('href',$parstack,$safeeval,undef,1);
1749: my $name =
1750: &Apache::lonxml::get_param('name',$parstack,$safeeval,undef,1);
1751: my $uriprint =
1752: &Apache::lonxml::get_param('uriprint',$parstack,$safeeval,undef,1);
1753: my $anchorprint =
1754: &Apache::lonxml::get_param('anchorprint',$parstack,$safeeval,undef,1);
1755: if (($href =~ /\S/) && ($uriprint=~/^on|uriprint|yes|1$/i)) {
1756: $href =~ s/([^\\])%/$1\\\%/g;
1757: # Substitute special symbols... and allow line breaks at each /
1758: #
1759: $href = &Apache::lonxml::latex_special_symbols($href);
1760: $href =~ s/\//\/\\-/g; # Map / to /\- to allow hyphenation.
1761: $currentstring .= ' ({\tt URI:'.$href.'})';
1762: } elsif (($name =~ /\S/) && ($anchorprint=~/^on|anchorprint|yes|1$/i)) {
1763: $currentstring .= ' ({\tt Anchor:'.&Apache::lonxml::latex_special_symbols($name).'})';
1764: } else {
1765: $currentstring.='';
1766: }
1767: }
1768: return $currentstring;
1769: }
1770:
1771: #-- <li> tag (end tag optional)
1772: sub start_li {
1773: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1774: my $currentstring = '';
1775: if ($target eq 'web' || $target eq 'webgrade') {
1776: $currentstring = $token->[4];
1777: } elsif ($target eq 'tex') {
1778: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1779: my $value=&Apache::lonxml::get_param('value',$parstack,$safeeval,undef,0);
1780: #FIXME need to support types i and I
1781: if ($type=~/disc/) {
1782: $currentstring .= ' \item[$\bullet$] ';
1783: } elsif ($type=~/circle/) {
1784: $currentstring .= ' \item[$\circ$] ';
1785: } elsif ($type=~/square/) {
1786: $currentstring .= ' \item[$\diamond$] ';
1787: } elsif ($type eq '1') {
1788: $currentstring .= ' \item['.($Apache::londefdef::list_index+1).'.]';
1789: } elsif ($type eq 'A') {
1790: $currentstring .= ' \item['.('A'..'Z')[$Apache::londefdef::list_index].'.]';
1791: } elsif ($type eq 'a') {
1792: $currentstring .= ' \item['.('a'..'z')[$Apache::londefdef::list_index].'.]';
1793: } elsif ($value ne '') {
1794: $currentstring .= ' \item['.$value.'] ';
1795: } else {
1796: $currentstring .= ' \item ';
1797: }
1798: $Apache::londefdef::list_index++;
1799: }
1800: return $currentstring;
1801: }
1802:
1803: sub end_li {
1804: my ($target,$token) = @_;
1805: my $currentstring = &end_p(); # In case there's a <p> in the <li>
1806: if ($target eq 'web' || $target eq 'webgrade') {
1807: $currentstring .= $token->[2];
1808: }
1809: return $currentstring;
1810: }
1811:
1812: #-- <u> tag (end tag required)
1813: sub start_u {
1814: my ($target,$token) = @_;
1815: my $currentstring = '';
1816: if ($target eq 'web' || $target eq 'webgrade') {
1817: $currentstring .= $token->[4];
1818: } elsif ($target eq 'tex') {
1819: &Apache::lonxml::startredirection();
1820: }
1821: return $currentstring;
1822: }
1823:
1824: sub end_u {
1825: my ($target,$token) = @_;
1826: my $currentstring = '';
1827: if ($target eq 'web' || $target eq 'webgrade') {
1828: $currentstring .= $token->[2];
1829: } elsif ($target eq 'tex') {
1830: $currentstring=&Apache::lonxml::endredirection();
1831: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1832: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1833: $currentstring=~s/(\S)\s*$/$1\}/;
1834: }
1835: return $currentstring;
1836: }
1837:
1838: #-- <ul> tag (end tag required)
1839: sub start_ul {
1840: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1841: my $currentstring = &end_p(); # Close off enclosing list.
1842: if ($target eq 'web' || $target eq 'webgrade') {
1843: $currentstring .= $token->[4];
1844: } elsif ($target eq 'tex') {
1845: my $TeXtype=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1846: $Apache::londefdef::list_index=0;
1847: if ($TeXtype eq 'disc') {
1848: $currentstring .= '\renewcommand{\labelitemi}{$\bullet$}'.
1849: '\renewcommand{\labelitemii}{$\bullet$}'.
1850: '\renewcommand{\labelitemiii}{$\bullet$}'.
1851: '\renewcommand{\labelitemiv}{$\bullet$}';
1852: } elsif ($TeXtype eq 'circle') {
1853: $currentstring .= '\renewcommand{\labelitemi}{$\circ$}'.
1854: '\renewcommand{\labelitemii}{$\circ$}'.
1855: '\renewcommand{\labelitemiii}{$\circ$}'.
1856: '\renewcommand{\labelitemiv}{$\circ$}';
1857: } elsif ($TeXtype eq 'square') {
1858: $currentstring .= '\renewcommand{\labelitemi}{$\diamond$}'.
1859: '\renewcommand{\labelitemii}{$\diamond$}'.
1860: '\renewcommand{\labelitemiii}{$\diamond$}'.
1861: '\renewcommand{\labelitemiv}{$\diamond$}';
1862: }
1863: $currentstring .= '\strut \begin{itemize}';
1864: }
1865: return $currentstring;
1866: }
1867:
1868: sub end_ul {
1869: my ($target,$token) = @_;
1870: my $currentstring = '';
1871: if ($target eq 'web' || $target eq 'webgrade') {
1872: $currentstring = $token->[2];
1873: } elsif ($target eq 'tex') {
1874: $currentstring = '\end{itemize} \renewcommand{\labelitemi}{$\bullet$}'.
1875: '\renewcommand{\labelitemii}{$\bullet$}'.
1876: '\renewcommand{\labelitemiii}{$\bullet$}'.
1877: '\renewcommand{\labelitemiv}{$\bullet$}\strut ';
1878: }
1879: return $currentstring;
1880: }
1881:
1882: #-- <menu> tag (end tag required)
1883: sub start_menu {
1884: my ($target,$token) = @_;
1885: my $currentstring = '';
1886: if ($target eq 'web' || $target eq 'webgrade') {
1887: $currentstring = $token->[4];
1888: } elsif ($target eq 'tex') {
1889: $currentstring = " \\begin{itemize} ";
1890: }
1891: return $currentstring;
1892: }
1893:
1894: sub end_menu {
1895: my ($target,$token) = @_;
1896: my $currentstring = '';
1897: if ($target eq 'web' || $target eq 'webgrade') {
1898: $currentstring = $token->[2];
1899: } elsif ($target eq 'tex') {
1900: $currentstring = " \\end{itemize}";
1901: }
1902: return $currentstring;
1903: }
1904:
1905: #-- <dir> tag (end tag required)
1906: sub start_dir {
1907: my ($target,$token) = @_;
1908: my $currentstring = &end_p(); # In case there's a <p> prior to the list.
1909: if ($target eq 'web' || $target eq 'webgrade') {
1910: $currentstring .= $token->[4];
1911: } elsif ($target eq 'tex') {
1912: $currentstring .= " \\begin{itemize} ";
1913: }
1914: return $currentstring;
1915: }
1916:
1917: sub end_dir {
1918: my ($target,$token) = @_;
1919: my $currentstring = '';
1920: if ($target eq 'web' || $target eq 'webgrade') {
1921: $currentstring = $token->[2];
1922: } elsif ($target eq 'tex') {
1923: $currentstring = " \\end{itemize}";
1924: }
1925: return $currentstring;
1926: }
1927:
1928: #-- <ol> tag (end tag required)
1929: sub start_ol {
1930: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1931: my $currentstring = &end_p(); # In case there's a <p> prior to the list.
1932: if ($target eq 'web' || $target eq 'webgrade') {
1933: $currentstring .= $token->[4];
1934: } elsif ($target eq 'tex') {
1935: $Apache::londefdef::list_index=0;
1936: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1937: if ($type eq '1') {
1938: $currentstring .= '\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1939: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1940: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1941: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}';
1942: } elsif ($type eq 'A') {
1943: $currentstring .= '\renewcommand{\labelenumi}{\Alph{enumi}.}'.
1944: '\renewcommand{\labelenumii}{\Alph{enumii}.}'.
1945: '\renewcommand{\labelenumiii}{\Alph{enumiii}.}'.
1946: '\renewcommand{\labelenumiv}{\Alph{enumiv}.}';
1947: } elsif ($type eq 'a') {
1948: $currentstring .= '\renewcommand{\labelenumi}{\alph{enumi}.}'.
1949: '\renewcommand{\labelenumii}{\alph{enumii}.}'.
1950: '\renewcommand{\labelenumiii}{\alph{enumiii}.}'.
1951: '\renewcommand{\labelenumiv}{\alph{enumiv}.}';
1952: } elsif ($type eq 'i') {
1953: $currentstring .= '\renewcommand{\labelenumi}{\roman{enumi}.}'.
1954: '\renewcommand{\labelenumii}{\roman{enumii}.}'.
1955: '\renewcommand{\labelenumiii}{\roman{enumiii}.}'.
1956: '\renewcommand{\labelenumiv}{\roman{enumiv}.}';
1957: } elsif ($type eq 'I') {
1958: $currentstring .= '\renewcommand{\labelenumi}{\Roman{enumi}.}'.
1959: '\renewcommand{\labelenumii}{\Roman{enumii}.}'.
1960: '\renewcommand{\labelenumiii}{\Roman{enumiii}.}'.
1961: '\renewcommand{\labelenumiv}{\Roman{enumiv}.}';
1962: }
1963: $currentstring .= '\strut \begin{enumerate}';
1964: }
1965: return $currentstring;
1966: }
1967:
1968: sub end_ol {
1969: my ($target,$token) = @_;
1970: my $currentstring = '';
1971: if ($target eq 'web' || $target eq 'webgrade') {
1972: $currentstring = $token->[2];
1973: } elsif ($target eq 'tex') {
1974: $currentstring = '\end{enumerate}\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1975: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1976: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1977: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}\strut ';
1978: }
1979: return $currentstring;
1980: }
1981:
1982: #-- <dl> tag (end tag required)
1983: sub start_dl {
1984: my ($target,$token) = @_;
1985: my $currentstring = &end_p(); # In case there's a <p> unclosed prior to the list.
1986: if ($target eq 'web' || $target eq 'webgrade') {
1987: $currentstring .= $token->[4];
1988: } elsif ($target eq 'tex') {
1989: $currentstring .= '\begin{description}';
1990: $Apache::londefdef::DL++;
1991: push(@Apache::londefdef::description,[]);
1992: $Apache::londefdef::DD[$Apache::londefdef::DL]=0;
1993: $Apache::londefdef::DT[$Apache::londefdef::DL]=0;
1994: $Apache::londefdef::seenDT[$Apache::londefdef::DL]=0;
1995: }
1996: return $currentstring;
1997: }
1998:
1999: sub end_dl {
2000: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2001: my $currentstring = '';
2002: if ($target eq 'web' || $target eq 'webgrade') {
2003: $currentstring = $token->[2];
2004: } elsif ($target eq 'tex') {
2005: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
2006: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
2007: foreach my $element (@{$Apache::londefdef::description[-1]}) {
2008: $currentstring.=' '.$element.' ';
2009: }
2010: pop(@Apache::londefdef::description);
2011: $currentstring.='\end{description}';
2012: delete($Apache::londefdef::DD[$Apache::londefdef::DL]);
2013: delete($Apache::londefdef::DT[$Apache::londefdef::DL]);
2014: delete($Apache::londefdef::seenDT[$Apache::londefdef::DL]);
2015: $Apache::londefdef::DL--;
2016: }
2017: return $currentstring;
2018: }
2019:
2020: #-- <dt> tag (end tag optional)
2021: sub start_dt {
2022: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2023: my $currentstring='';
2024: if ($target eq 'web' || $target eq 'webgrade') {
2025: $currentstring = $token->[4];
2026: } elsif ($target eq 'tex') {
2027: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
2028: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
2029: &Apache::lonxml::startredirection();
2030: $Apache::londefdef::DT[-1]++;
2031: $Apache::londefdef::seenDT[-1]=1;
2032: }
2033: return $currentstring;
2034: }
2035:
2036: sub end_dt {
2037: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2038: my $currentstring = '';
2039: if ($target eq 'web' || $target eq 'webgrade') {
2040: $currentstring = $token->[2];
2041: } elsif ($target eq 'tex') {
2042: if ($Apache::londefdef::DT[-1]) {
2043: my $data=&item_cleanup();
2044: push(@{$Apache::londefdef::description[-1]},'\item['.$data.'] \strut \vskip 0mm');
2045: $Apache::londefdef::DT[-1]--;
2046: }
2047: }
2048: return $currentstring;
2049: }
2050:
2051: sub item_cleanup {
2052: my $item=&Apache::lonxml::endredirection();
2053: $item=~s/\\begin{center}//g;
2054: $item=~s/\\end{center}//g;
2055: return $item;
2056: }
2057:
2058: #-- <dd> tag (end tag optional)
2059: sub start_dd {
2060: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2061: my $currentstring = '';
2062: if ($target eq 'web' || $target eq 'webgrade') {
2063: $currentstring = $token->[4];
2064: } elsif ($target eq 'tex') {
2065: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
2066: if ($Apache::londefdef::DD[-1]) { &end_dd(@_);}
2067: if (!$Apache::londefdef::seenDT[-1]) {
2068: push(@{$Apache::londefdef::description[-1]},'\item[\strut] \strut \vskip 0mm ');
2069: }
2070: push(@{$Apache::londefdef::description[-1]},'');
2071: $Apache::londefdef::description[-1]->[-1].=' \strut ';
2072: $Apache::londefdef::DD[-1]++;
2073: &Apache::lonxml::startredirection();
2074: }
2075: return $currentstring;
2076: }
2077:
2078: sub end_dd {
2079: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2080: my $currentstring = '';
2081: if ($target eq 'web' || $target eq 'webgrade') {
2082: $currentstring = $token->[2];
2083: } elsif ($target eq 'tex') {
2084: $Apache::londefdef::description[-1]->[-1].=
2085: &Apache::lonxml::endredirection().' \vskip 0mm ';
2086: $Apache::londefdef::DD[-1]--;
2087: }
2088: return $currentstring;
2089: }
2090:
2091: #-- <table> tag (end tag required)
2092: # <table> also ends any prior <p> that is not closed.
2093: # but, unless I allow <p>'s to nest, that's the
2094: # only way I could think of to allow <p> in
2095: # <tr> <th> bodies
2096: #
2097: #list of supported attributes: border,width,TeXwidth,TeXtheme
2098: # align
2099: sub start_table {
2100: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2101: my $textwidth = '';
2102: my $currentstring = &end_p();
2103: if ($target eq 'web' || $target eq 'webgrade') {
2104: $currentstring .= $token->[4];
2105: } elsif ($target eq 'tex') {
2106: &disable_para(); # Can't have paras in a table.
2107:
2108: # Get the parameters that we can do something about:
2109:
2110: my $border = &Apache::lonxml::get_param('border', $parstack, $safeeval, undef, 0);
2111: my $width = &Apache::lonxml::get_param('TeXwidth', $parstack, $safeeval, undef, 0);
2112: my $theme = &Apache::lonxml::get_param('TeXtheme', $parstack, $safeeval, undef, 0);
2113: my $align = &Apache::lonxml::get_param('align', $parstack, $safeeval, undef, 0);
2114: my $cell_border = &Apache::lonxml::get_param('rules', $parstack, $safeeval, undef, 0);
2115:
2116: # The only thing that needs any figuring out is the width.. and then only if it is
2117: # a percent. If not it's assumed to be some valid TeX measurement unit e.g. 3.0cm
2118: #
2119:
2120: my $table = new Apache::lontable();
2121: if ((defined $border) && ($border > 0)) {
2122: # &Apache::lonnet::logthis("Turning on table borders: $border");
2123: $table->table_border(1);
2124: if (!defined $cell_border) {
2125: $table->cell_border(1); # Default for rules is all if rules not defined.
2126: }
2127: }
2128:
2129: if ((defined $cell_border)) {
2130: if ($cell_border eq 'all') {
2131: $table->cell_border(1);
2132: } elsif ($cell_border eq 'rows') {
2133: $table->cell_border(2);
2134: } elsif ($cell_border eq 'cols') {
2135: $table->cell_border(3);
2136: } elsif($cell_border eq 'groups') {
2137: $table->cell_border(4);
2138: } else {
2139: $table->cell_border(0);
2140: }
2141: }
2142: if (defined $theme) {
2143: $table->theme($theme);
2144: }
2145: if (defined $align) {
2146: $table->alignment($align);
2147: }
2148:
2149: # Missing width is most of page width
2150:
2151: if (!(defined $width)) {
2152: $width = '70%';
2153: }
2154:
2155: # If a percentage, need to calculate what this means in terms of
2156: # page width:
2157:
2158: if ($width =~ /%$/) {
2159: my $textwidth = &recalc($env{'form.textwidth'}); # Page width in mm.
2160: $width =~ s/%//;
2161: $width = $width * $textwidth / 100.0;
2162: $width .= " mm";
2163: $table->width($width);
2164: }
2165:
2166: push(@Apache::londefdef::table, $table);
2167: $currentstring.=' \keephidden{NEW TABLE ENTRY}';
2168:
2169: }
2170: return $currentstring;
2171: }
2172:
2173: sub end_table {
2174: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2175: my $currentstring = '';
2176: if ($target eq 'web' || $target eq 'webgrade') {
2177: $currentstring = $token->[2];
2178: } elsif ($target eq 'tex') {
2179:
2180:
2181: my $table = pop(@Apache::londefdef::table);
2182: my $t = $table->generate();
2183: # &Apache::lonnet::logthis("Generating string");
2184: $currentstring = $t->generate_string();
2185: # &Apache::lonnet::logthis("Generated: $currentstring");
2186: &enable_para();
2187:
2188: }
2189: return $currentstring;
2190: }
2191:
2192: #-- <tr> tag (end tag optional)
2193: sub start_tr {
2194: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2195: my $currentstring = '';
2196: if ($target eq 'web' || $target eq 'webgrade') {
2197: $currentstring = $token->[4];
2198: } elsif ($target eq 'tex') {
2199:
2200: my $align = &Apache::lonxml::get_param('align', $parstack, $safeeval, undef, 1);
2201: $Apache::londefdef::table[-1]->start_row();
2202:
2203: if ($align ne '') {
2204: $Apache::londefdef::table[-1]->configure_row({default_halign => $align});
2205: }
2206:
2207: #---------------------------------------------------------------
2208: # Old table code.
2209: #---------------------------------------------------------------
2210:
2211: if (0) {
2212: $Apache::londefdef::table[-1]{'row_number'}++;
2213: my $alignchar=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
2214: if ($alignchar ne '') {
2215: push @ {$Apache::londefdef::table[-1]{'rows'} },substr($alignchar,0,1);
2216: } else {
2217: push @ {$Apache::londefdef::table[-1]{'rows'} }, 'l';
2218: }
2219: push ( @{ $Apache::londefdef::table[-1]{'rowdata'} }, $Apache::londefdef::table[-1]{'hinc'});
2220: #
2221: # Need to save the number of table columns to preserve the max # columns.
2222: #
2223: $Apache::londefdef::table[-1]{'prior_columns'} = $Apache::londefdef::table[-1]{'counter_columns'};
2224: $Apache::londefdef::table[-1]{'counter_columns'} = -1;
2225: push @ {$Apache::londefdef::table[-1]{'TeXlen'}}, [];
2226: push @ {$Apache::londefdef::table[-1]{'objectlen'}}, [];
2227: push @ {$Apache::londefdef::table[-1]{'minlen'}}, [];
2228: push @ {$Apache::londefdef::table[-1]{'maxlen'}}, [];
2229: push @ {$Apache::londefdef::table[-1]{'content'}}, [];
2230: }
2231: }
2232: return $currentstring;
2233: }
2234:
2235: sub end_tr {
2236: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2237: my $currentstring = &end_p(); # Close any pending <p> in the row.
2238: if ($target eq 'web' || $target eq 'webgrade') {
2239: $currentstring .= $token->[2];
2240: } elsif ($target eq 'tex') {
2241:
2242: # In case the user is missing a </td> or </th> tag:
2243:
2244: if ($Apache::londefdef::TD_redirection) {
2245: &end_td_tex($parstack,$parser,$safeeval);
2246: }
2247: $Apache::londefdef::table[-1]->end_row();
2248:
2249: #-----------------------------------------------
2250: # Old table code
2251: #-----------------------------------------------
2252:
2253: if (0) {
2254: if ($Apache::londefdef::TD_redirection) {
2255: &end_td_tex($parstack,$parser,$safeeval);
2256: }
2257: # Counter columns must be the maximum number of columns seen
2258: # in the table so far so:
2259: if ($Apache::londefdef::table[-1]{'prior_columns'} > $Apache::londefdef::table[-1]{'counter_columns'}) {
2260: $Apache::londefdef::table[-1]{'counter_columns'} = $Apache::londefdef::table[-1]{'prior_columns'};
2261: }
2262: }
2263:
2264:
2265: }
2266: return $currentstring;
2267: }
2268:
2269: #-- <td> tag (end tag optional)
2270: sub start_td {
2271: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2272: my $currentstring = '';
2273: if ($target eq 'web' || $target eq 'webgrade') {
2274: $currentstring = $token->[4];
2275: } elsif ($target eq 'tex') {
2276: $Apache::londefdef::TD_redirection = 1;
2277: &tag_check('tr','td',$tagstack,$parstack,$parser,$safeeval);
2278: }
2279: return $currentstring;
2280: }
2281:
2282: sub tag_check {
2283: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
2284: my @ar=@$parstack;
2285: for (my $i=$#ar-1;$i>=0;$i--) {
2286: if (lc($$tagstack[$i]) eq $good_tag) {
2287: &start_td_tex($parstack,$parser,$safeeval);
2288: last;
2289: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2290: splice @ar, $i+1;
2291: &end_td_tex(\@ar,$parser,$safeeval);
2292: &start_td_tex($parstack,$parser,$safeeval);
2293: last;
2294: }
2295: }
2296: return '';
2297: }
2298:
2299: #
2300: # Factor out cell configuration hash generation:
2301: #
2302:
2303: sub cell_config_hash {
2304: my ($align, $rowspan, $colspan, $width) = @_;
2305: if ($rowspan ne '') {
2306: $rowspan =~ s/^\s+|\s+$//g;
2307: }
2308: if ($colspan ne '') {
2309: $colspan =~ s/^\s+|\s+$//g;
2310: }
2311: my %config;
2312: if ($align ne '') {
2313: $config{'halign'} = $align;
2314: }
2315: if (($colspan =~ /^\d+$/) && ($colspan > 0)) {
2316: $config{'colspan'} = $colspan;
2317: }
2318: if (($rowspan =~ /^\d+$/) && ($rowspan > 0)) {
2319: $config{'rowspan'} = $rowspan;
2320: }
2321: if ($width ne '') {
2322: $config{'width'} = $width;
2323: }
2324: return \%config;
2325: }
2326:
2327: sub start_td_tex {
2328: my ($parstack,$parser,$safeeval) = @_;
2329:
2330: # At this stage, an empty cell is created with the
2331: # appropriate rowspan/colspan and alignment
2332: # attributes, but empty of text. end_td_tex will
2333: # fetch the contents from the recursive parse and
2334: # fill the cell with them:
2335: my $align = &Apache::lonxml::get_param('align', $parstack, $safeeval);
2336: my $rowspan = &Apache::lonxml::get_param('rowspan', $parstack, $safeeval);
2337: my $colspan = &Apache::lonxml::get_param('colspan', $parstack, $safeeval);
2338: my $width = &Apache::lonxml::get_param('TeXwidth', $parstack, $safeeval);
2339: my $config = &cell_config_hash($align, $rowspan, $colspan, $width);
2340:
2341: my $table = $Apache::londefdef::table[-1];
2342: $table->add_cell('', $config);
2343:
2344:
2345: #------------------------------------------------
2346: # Old table code.
2347: #------------------------------------------------
2348:
2349: if (0) {
2350:
2351: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2352: if ($alignchar eq '') {
2353: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
2354: }
2355: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
2356: $Apache::londefdef::table[-1]{'counter_columns'}++;
2357: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2358: if (defined $TeXwidth) {
2359: my $current_length=&recalc($TeXwidth);
2360: $current_length=~/(\d+\.?\d*)/;
2361: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2362: }
2363: }
2364: &Apache::lonxml::startredirection();
2365: return '';
2366: }
2367:
2368: sub end_td_tex {
2369:
2370: my $text = &Apache::lonxml::endredirection();
2371: my $table = $Apache::londefdef::table[-1];
2372: $table->append_cell_text($text);
2373:
2374: #-------------------------------------------------
2375: # Old table code
2376: #-------------------------------------------------
2377:
2378: if (0) {
2379: my ($parstack,$parser,$safeeval) = @_;
2380: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2381: my $current_column = $Apache::londefdef::table[-1]{'counter_columns'};
2382: my $data = &Apache::lonxml::endredirection();
2383:
2384: # The rowspan array of the table indicates which cells are part of a span.
2385: # n indicates the start of a span set of n rows.
2386: # ^ indicates a cell that continues a span set.
2387: # _ indicates the cell is at the bottom of a span set.
2388: # If this and subsequent cells are part of a rowspan, we must
2389: # push along the row until we find one that is not.
2390:
2391: while ((defined $Apache::londefdef::table[-1]{'rowspan'}[$current_row] [$current_column])
2392: && ($Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column] =~ /[\^\_]/)) {
2393: # Part of a span.
2394: push @ {$Apache::londefdef::table[-1]{'content'}[-1]}, '';
2395: $current_column++;
2396: }
2397: $Apache::londefdef::table[-1]{'counter_columns'} = $current_column;
2398:
2399:
2400: # Get the column and row spans.
2401: # Colspan can be done via \multicolumn if I can figure out the data structs.
2402:
2403: my $colspan = &Apache::lonxml::get_param('colspan', $parstack, $safeeval, undef, 0);
2404: if (!$colspan) {
2405: $colspan = 1;
2406: }
2407:
2408: my $rowspan = &Apache::lonxml::get_param('rowspan', $parstack, $safeeval, undef, 0);
2409: if (!$rowspan) {
2410: $rowspan = 1;
2411: }
2412:
2413:
2414:
2415: for (my $c = 0; $c < $colspan; $c++) {
2416: $Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column+$c] = $rowspan;
2417: for (my $i = 1; $i < $rowspan; $i++) {
2418: $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column+$c] = '^';
2419: if ($i == ($rowspan-1)) {
2420: $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column+$c] = '_';
2421: }
2422: }
2423: }
2424:
2425: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2426: if (defined $TeXwidth) {
2427: for (my $c = 0; $c < $colspan; $c++) {
2428: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2429: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2430: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2431: }
2432: } else {
2433: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2434: my $garbage_data=$data;
2435: my $fwidth=0;
2436: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2437: my $current_length=&recalc($1);
2438: $current_length=~/(\d+\.?\d*)/;
2439: if ($fwidth<$1) {$fwidth=$1;}
2440: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2441: }
2442: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2443: my $current_length=$1;
2444: if ($fwidth<$current_length) {$fwidth=$current_length;}
2445: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2446: }
2447: for (my $c = 0; $c < $colspan; $c++) {
2448: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2449: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2450: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2451: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2452: }
2453: } 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)*/) {
2454: my $garbage_data=$data;
2455: my $fwidth=0;
2456: while ($garbage_data=~/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)\s*\}/) {
2457: my $current_length=&recalc($1);
2458: $current_length=~/(\d+\.?\d*)/;
2459: if ($fwidth<$1) {$fwidth=$1;}
2460: $garbage_data=~s/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2461: }
2462: while ($garbage_data=~/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2463: my $current_length=&recalc($1);
2464: $current_length=~/(\d+\.?\d*)/;
2465: if ($fwidth<$1) {$fwidth=$1;}
2466: $garbage_data=~s/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2467: }
2468: for (my $c = 0; $c < $colspan; $c++) {
2469: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2470: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2471: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2472: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2473: }
2474: $data=~s/\\\\\s*$//;
2475: } else {
2476: $data=~s/^\s+(\S.*)/$1/;
2477: $data=~s/(.*\S)\s+$/$1/;
2478: $data=~s/(\s)+/$1/;
2479: my ($current_length,$min_length)=(0,0);
2480: if ($data=~/\\vskip/) {
2481: my $newdata=$data;
2482: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2483: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2484: foreach my $elementdata (@newdata) {
2485: my $lengthnewdata=2.5*&LATEX_length($elementdata);
2486: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
2487: my @words=split(/ /,$elementdata);
2488: foreach my $word (@words) {
2489: my $lengthword=2.5*&LATEX_length($word);
2490: if ($min_length<$lengthword) {$min_length=$lengthword;}
2491: }
2492: }
2493: } else {
2494: $current_length=2.5*&LATEX_length($data);
2495: my @words=split(/ /,$data);
2496: foreach my $word (@words) {
2497: my $lengthword=2*&LATEX_length($word);
2498: if ($min_length<$lengthword) {$min_length=$lengthword;}
2499: }
2500: }
2501: for (my $c = 0; $c < $colspan; $c++) {
2502: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2503: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2504: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2505: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
2506: }
2507: }
2508: }
2509: # Substitute all of the tables nested in this cell in their appropriate places.
2510:
2511:
2512: my $nested_count = $#{$Apache::londefdef::table[-1]{'include'}}; # This one is constant...
2513: for (my $in=0; $in<=$nested_count; $in++) {
2514: my $nested = shift @{$Apache::londefdef::table[-1]{'include'}};
2515: $nested =~ s/\\end\{tabular\}\\strut\\\\/\\end\{tabular\}/;
2516: # $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2517: $data =~ s/\\keephidden\{NEW TABLE ENTRY\}/$nested/;
2518:
2519: }
2520: # Should be be killing off the 'include' elements as they're used up?
2521:
2522: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
2523:
2524:
2525:
2526:
2527: # the colspan array will indicate how many columns will be spanned by this
2528: # cell..this requires that counter_columns also be adjusted accordingly
2529: # so that the next bunch of text goes in the right cell. Note that since
2530: # counter_columns is incremented in the start_td_tex, we adjust by colspan-1.
2531: #
2532:
2533: $Apache::londefdef::table[-1]{'counter_columns'} += $colspan -1;
2534: for (my $i = 0; $i < ($colspan -1); $i++) {
2535: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },'';
2536: }
2537: for (my $r = 0; $r < $rowspan; $r++) {
2538: $Apache::londefdef::table[-1]{'colspan'}[$current_row+$r][$current_column] = $colspan;
2539: # Put empty text in spanned cols.
2540:
2541: }
2542:
2543: }
2544:
2545: return '';
2546: }
2547:
2548: sub end_td {
2549: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2550: my $currentstring = '';
2551: if ($target eq 'web' || $target eq 'webgrade') {
2552: $currentstring = $token->[2];
2553: } elsif ($target eq 'tex') {
2554: $Apache::londefdef::TD_redirection =0;
2555: &end_td_tex($parstack,$parser,$safeeval);
2556: }
2557: return $currentstring;
2558: }
2559:
2560: #-- <th> tag (end tag optional)
2561: sub start_th {
2562: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2563: my $currentstring = '';
2564: if ($target eq 'web' || $target eq 'webgrade') {
2565: $currentstring = $token->[4];
2566: } elsif ($target eq 'tex') {
2567: $Apache::londefdef::TD_redirection = 1;
2568: &tagg_check('tr','th',$tagstack,$parstack,$parser,$safeeval);
2569: }
2570: return $currentstring;
2571: }
2572:
2573: sub tagg_check {
2574: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
2575: my @ar=@$parstack;
2576: for (my $i=$#ar-1;$i>=0;$i--) {
2577: if (lc($$tagstack[$i]) eq $good_tag) {
2578: &start_th_tex($parstack,$parser,$safeeval);
2579: last;
2580: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2581: splice @ar, $i+1;
2582: &end_th_tex(\@ar,$parser,$safeeval);
2583: &start_th_tex($parstack,$parser,$safeeval);
2584: last;
2585: }
2586: }
2587: return '';
2588: }
2589:
2590: sub start_th_tex {
2591: my ($parstack,$parser,$safeeval) = @_;
2592:
2593: my $alignment = &Apache::lonxml::get_param('align', $parstack, $safeeval, undef,1);
2594: my $rowspan = &Apache::lonxml::get_param('rowspan', $parstack, $safeeval, undef, 1);
2595: my $colspan = &Apache::lonxml::get_param('colspan', $parstack, $safeeval, undef, 1);
2596:
2597: my $config = cell_config_hash($alignment, $rowspan, $colspan);
2598: my $table = $Apache::londefdef::table[-1];
2599: $table->add_cell('\textbf{', $config);
2600:
2601: #-------------------------------------------------------------------------------------
2602: #
2603: # Old table code.
2604: #
2605: #--------------------------------------------------------------------------------------
2606:
2607: if (0) {
2608:
2609:
2610: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2611: if ($alignchar eq '') {
2612: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
2613: }
2614: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
2615: $Apache::londefdef::table[-1]{'counter_columns'}++;
2616: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2617: if (defined $TeXwidth) {
2618: my $current_length=&recalc($TeXwidth);
2619: $current_length=~/(\d+\.?\d*)/;
2620: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2621: }
2622: }
2623:
2624: # Accept xml until the </th> tag.
2625:
2626: &Apache::lonxml::startredirection();
2627: return '';
2628: }
2629:
2630: sub end_th_tex {
2631: my ($parstack,$parser,$safeeval) = @_;
2632:
2633: my $table = $Apache::londefdef::table[-1];
2634: my $text = &Apache::lonxml::endredirection();
2635: $table->append_cell_text($text.'}');
2636:
2637: #-----------------------------------------------------------------------------
2638: # Old table code:
2639: #-----------------------------------------------------------------------------
2640:
2641: if (0) {
2642: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2643: my $data=&Apache::lonxml::endredirection();
2644: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2645: if (defined $TeXwidth) {
2646: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2647: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2648: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2649: } else {
2650: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2651: my $garbage_data=$data;
2652: my $fwidth=0;
2653: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2654: my $current_length=&recalc($1);
2655: $current_length=~/(\d+\.?\d*)/;
2656: if ($fwidth<$1) {$fwidth=$1;}
2657: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2658: }
2659: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2660: my $current_length=$1;
2661: if ($fwidth<$current_length) {$fwidth=$current_length;}
2662: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2663: }
2664: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2665: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2666: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2667: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2668: } else {
2669: $data=~s/^\s+(\S.*)/$1/;
2670: $data=~s/(.*\S)\s+$/$1/;
2671: $data=~s/(\s)+/$1/;
2672: my ($current_length,$min_length)=(0,0);
2673: if ($data=~/\\vskip/) {
2674: my $newdata=$data;
2675: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2676: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2677: foreach my $elementdata (@newdata) {
2678: my $lengthnewdata=2.5*&LATEX_length($elementdata);
2679: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
2680: my @words=split(/ /,$elementdata);
2681: foreach my $word (@words) {
2682: my $lengthword=2.5*&LATEX_length($word);
2683: if ($min_length<$lengthword) {$min_length=$lengthword;}
2684: }
2685: }
2686: } else {
2687: $current_length=2.5*&LATEX_length($data);
2688: my @words=split(/ /,$data);
2689: foreach my $word (@words) {
2690: my $lengthword=2*&LATEX_length($word);
2691: if ($min_length<$lengthword) {$min_length=$lengthword;}
2692: }
2693: }
2694: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2695: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2696: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2697: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
2698: }
2699: }
2700: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
2701: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2702: }
2703: #make data bold
2704: $data='\textbf{'.$data.'}';
2705: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
2706: }
2707: return'';
2708: }
2709:
2710: sub end_th {
2711: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2712: my $currentstring = &end_p(); # Close any open <p> in the row.
2713: if ($target eq 'web' || $target eq 'webgrade') {
2714: $currentstring .= $token->[2];
2715: } elsif ($target eq 'tex') {
2716: $Apache::londefdef::TD_redirection =0;
2717: &end_th_tex($parstack,$parser,$safeeval);
2718: }
2719: return $currentstring;
2720: }
2721:
2722: #-- <img> tag (end tag forbidden)
2723: #
2724: # Render the <IMG> tag.
2725: # <IMG> has the following attributes (in addition to the
2726: # standard HTML ones:
2727: # TeXwrap - Governs how the tex target will try to wrap text around
2728: # horizontally aligned images.
2729: # TeXwidth - The width of the image when rendered for print (mm).
2730: # TeXheight - The height of the image when rendered for print (mm)
2731: # (Note there seems to also be support for this as a % of page size)
2732: #
2733: sub start_img {
2734: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
2735: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,
2736: undef,1);
2737: if (! $src &&
2738: ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex')
2739: ) {
2740: my $inside = &Apache::lonxml::get_all_text("/img",$parser,$style);
2741: return '';
2742: }
2743: &Apache::lonxml::extlink($src);
2744: my $currentstring = '';
2745: my $scaling = .3;
2746:
2747: # Render unto browsers that which are the browser's...
2748:
2749: if ($target eq 'web' || $target eq 'webgrade') {
2750: my $enc = ('yes' eq
2751: lc(&Apache::lonxml::get_param('encrypturl',$parstack,
2752: $safeeval)));
2753: $currentstring.=&Apache::lonenc::encrypt_ref($token,{'src'=>$src},
2754: $enc);
2755:
2756: # and render unto TeX that which is LaTeX
2757: } elsif ($target eq 'tex') {
2758: #
2759: # The alignment will require some superstructure to be put around
2760: # the \includegraphics stuff. At present we can only partially
2761: # simulate the alignments offered by html.
2762: #
2763: #
2764: my $align = lc(&Apache::lonxml::get_param('align',
2765: $parstack,
2766: $safeeval,
2767: undef,1));
2768: if(!$align) {
2769: $align = "bottom"; # This is html's default so it's ours too.
2770: }
2771: #
2772: &Apache::lonxml::debug("Alignemnt = $align");
2773: # LaTeX's image/text wrapping is really bad since it wants to
2774: # make figures float.
2775: # The user has the optional parameter (applicable only to l/r
2776: # alignment to use the picins/parpic directive to get wrapped text
2777: # this is also imperfect.. that's why we give them a choice...
2778: # so they can't yell at us for our choice.
2779: #
2780: my $latex_rendering = &Apache::lonxml::get_param('TeXwrap',
2781: $parstack,
2782: $safeeval,
2783: undef,0);
2784: # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering");
2785: if(!$latex_rendering) {
2786: $latex_rendering = "texwrap";
2787: }
2788: # using texwrap inside a table does not work. So, if after all of this,
2789: # texwrap is on, we turn it off if we detect we're in a table:
2790: #
2791: if (($latex_rendering eq 'texwrap') && &is_inside_of($tagstack, "table")) {
2792: $latex_rendering = 'parpic';
2793: }
2794:
2795: # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering image file: $src");
2796:
2797: #if original bmp/gif/jpg/png file exist do following:
2798: my $origsrc=$src;
2799: my ($path,$file) = &get_eps_image($src);
2800: # &Apache::lonnet::logthis("Image source: $src result: $path $file");
2801: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
2802: &Apache::lonxml::debug("path = $path file = $file src = $src");
2803: if (-e $src) {
2804: &Apache::lonxml::debug("$src exists");
2805: my ($height_param,$width_param)=
2806: &image_size($origsrc,0.3,$parstack,$safeeval);
2807: my $size;
2808: if ($width_param) { $size.='width='.$width_param.' mm,'; }
2809: if ($height_param) { $size.='height='.$height_param.' mm]'; }
2810: # Default size if not able to extract that (e.g. eps image).
2811:
2812: # &Apache::lonnet::logthis("Size = $size");
2813:
2814: $size='['.$size;
2815: $size=~s/,$/]/;
2816: $currentstring .= '\graphicspath{{'.$path.'}}'
2817: .'\includegraphics'.$size.'{'.$file.'} ';
2818: my $closure;
2819: ($currentstring, $closure) = &align_latex_image($align,
2820: $latex_rendering,
2821: $currentstring,
2822: $width_param,
2823: $height_param);
2824: $currentstring .= $closure;
2825:
2826: } else {
2827: &Apache::lonxml::debug("$src does not exist");
2828: #original image file doesn't exist so check the alt attribute
2829: my $alt =
2830: &Apache::lonxml::get_param('alt',$parstack,$safeeval,undef,1);
2831: unless ($alt) {
2832: $alt=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
2833: }
2834:
2835: if ($alt) { $currentstring .= ' '.$alt.' '; }
2836: }
2837:
2838: # And here's where the semi-quote breaks down: allow the user
2839: # to edit the beast as well by rendering the problem for edit:
2840: } elsif ($target eq 'edit') {
2841: my $only = join(',',&Apache::loncommon::filecategorytypes('Pictures'));
2842: $currentstring .=&Apache::edit::tag_start($target,$token);
2843: $currentstring .=&Apache::edit::text_arg('Image Url:','src',$token,70).
2844: &Apache::edit::browse('src',undef,'alt',$only).' '.
2845: &Apache::edit::search('src',undef,'alt').'<br />';
2846: $currentstring .=&Apache::edit::text_arg('Description:','alt',$token,70).'<br />';
2847: $currentstring .=&Apache::edit::text_arg('width (pixel):','width',$token,5);
2848: $currentstring .=&Apache::edit::text_arg('height (pixel):','height',$token,5).'<br />';
2849: $currentstring .=&Apache::edit::text_arg('TeXwidth (mm):','TeXwidth',$token,5);
2850: $currentstring .=&Apache::edit::text_arg('TeXheight (mm):','TeXheight',$token,5);
2851: $currentstring .=&Apache::edit::select_arg('Alignment:','align',
2852: ['','bottom','middle','top','left','right'],$token,5);
2853: $currentstring .=&Apache::edit::select_arg('TeXwrap:', 'TeXwrap',
2854: ['', 'none','parbox', 'parpic', 'wrapfigure'], $token, 2);
2855: my $alt= &Apache::lonxml::get_param('alt',$parstack,$safeeval);
2856: my $enc= &Apache::lonxml::get_param('encrypturl',$parstack,$safeeval);
2857:
2858: $currentstring .=&Apache::edit::select_arg('Encrypt URL:','encrypturl',
2859: ['no','yes'], $token, 2);
2860: if (($alt=~/\S/) && (lc($enc) eq 'yes')) {
2861: $currentstring.='<br /><span class="LC_warning">'.&mt('Warning: the description "[_1]" will be available, even for encrypted URL',$alt).'</span><br />';
2862: }
2863: $currentstring .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2864: my $src= &Apache::lonxml::get_param('src',$parstack,$safeeval);
2865: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
2866: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
2867:
2868: if ($token->[2]{'src'}=~/\$/) {
2869: $currentstring.=&mt('Variable image source');
2870: } elsif ($token->[2]{'src'}=~/\S/) {
2871: $currentstring .= '<img src="'.$src.'" alt="'.$alt.'" ';
2872: if ($width) { $currentstring.=' width="'.$width.'" '; }
2873: if ($height) { $currentstring.=' height="'.$height.'" '; }
2874: $currentstring .= ' />';
2875: } else {
2876: $currentstring.=&mt("No image source specified");
2877: }
2878: } elsif ($target eq 'modified') {
2879: my ($osrc,$owidth,$oheight)=
2880: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2881: my $ctag=&Apache::edit::get_new_args($token,$parstack,
2882: $safeeval,'src','alt','align',
2883: 'TeXwidth','TeXheight', 'TeXwrap',
2884: 'width','height','encrypturl');
2885: my ($nsrc,$nwidth,$nheight)=
2886: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2887: my $loc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$nsrc);
2888: &image_replication($loc);
2889: my ($iwidth,$iheight);
2890: if (-e $loc) {
2891: my $image = Image::Magick->new;
2892: $image->Read($loc);
2893: ($iwidth, $iheight) = ($image->Get('width'),
2894: $image->Get('height'));
2895: }
2896: if ($osrc ne $nsrc || (!$nwidth && !$nheight)) {
2897: # changed image or no size specified,
2898: # if they didn't explicitly change the
2899: # width or height use the ones from the image
2900: if ($iwidth && $iheight) {
2901: if ($owidth == $nwidth || (!$nwidth && !$nheight)) {
2902: $token->[2]{'width'} = $iwidth;$ctag=1;
2903: }
2904: if ($oheight == $nheight || (!$nwidth && !$nheight)) {
2905: $token->[2]{'height'}=$iheight;$ctag=1;
2906: }
2907: }
2908: }
2909: my ($cwidth,$cheight)=($token->[2]{'width'},$token->[2]{'height'});
2910: # if we don't have a width or height
2911: if ($iwidth && $cwidth && !$cheight) {
2912: $token->[2]{'height'}=int(($cwidth/$iwidth)*$iheight);$ctag=1;
2913: }
2914: if ($iheight && $cheight && !$cwidth) {
2915: $token->[2]{'width'}=int(($cheight/$iheight)*$iwidth);$ctag=1;
2916: }
2917: if ($ctag) {$currentstring=&Apache::edit::rebuild_tag($token);}
2918: }
2919:
2920: return $currentstring;
2921: }
2922:
2923: sub end_img {
2924: my ($target,$token) = @_;
2925: my $currentstring = '';
2926: if ($target eq 'web' || $target eq 'webgrade') {
2927: $currentstring = $token->[2];
2928: } elsif ($target eq 'tex') {
2929: $currentstring = '';
2930: }
2931: return $currentstring;
2932: }
2933:
2934: #-- <applet> tag (end tag required)
2935: sub start_applet {
2936: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2937:
2938: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,undef,1);
2939: &Apache::lonxml::extlink($code);
2940: my $archive=&Apache::lonxml::get_param('archive',$parstack,$safeeval,
2941: undef,1);
2942: &Apache::lonxml::extlink($archive);
2943: my $currentstring = '';
2944: if ($target eq 'web' || $target eq 'webgrade') {
2945: $currentstring = $token->[4];
2946: } elsif ($target eq 'tex') {
2947: # Turn off some stuff we can't be inside thank you LaTeX
2948:
2949: my $restart_sub = 0;
2950: my $restart_sup = 0;
2951:
2952: # Since <sub> and <sup> are simple tags it's ok to turn off/on
2953: # using the start_ stop_ functions.. those tags only care about
2954: # $target.
2955:
2956: if (&is_inside_of($tagstack, "sub")) {
2957: $restart_sub = 1;
2958: $currentstring .= &end_sub($target, $token, $tagstack,
2959: $parstack, $parser, $safeeval);
2960: }
2961: if (&is_inside_of($tagstack, "sup")) {
2962: $restart_sup = 1;
2963: $currentstring .= &end_sup($target, $token, $tagstack,
2964: $parstack, $parser, $safeeval);
2965: }
2966:
2967: # Now process the applet; just replace it with its alt attribute.
2968:
2969: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
2970: $safeeval,undef,1);
2971: unless ($alttag) {
2972: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,
2973: undef,1);
2974: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2975: $code);
2976: }
2977: $currentstring.='\begin{center} \fbox{Java Applet: '.$alttag.
2978: '.}\end{center}';
2979:
2980: # Turn stuff back on that we can't be inside of.
2981:
2982: if ($restart_sub) {
2983: $currentstring .= &start_sub($target, $token, $tagstack,
2984: $parstack, $parser, $safeeval);
2985: }
2986: if ($restart_sup) {
2987: $currentstring .= &start_sup($target, $token, $tagstack,
2988: $parstack, $parser, $safeeval);
2989: }
2990: }
2991: return $currentstring;
2992: }
2993:
2994: sub end_applet {
2995: my ($target,$token) = @_;
2996: my $currentstring = '';
2997: if ($target eq 'web' || $target eq 'webgrade') {
2998: $currentstring = $token->[2];
2999: } elsif ($target eq 'tex') {
3000: }
3001: return $currentstring;
3002: }
3003:
3004: #-- <embed> tag (end tag optional/required)
3005: sub start_embed {
3006: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3007: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
3008: &Apache::lonxml::extlink($src);
3009: my $currentstring = '';
3010: if ($target eq 'web' || $target eq 'webgrade') {
3011: $currentstring=&Apache::lonenc::encrypt_ref($token,{'src'=>$src});
3012: } elsif ($target eq 'tex') {
3013: }
3014: return $currentstring;
3015: }
3016:
3017: sub end_embed {
3018: my ($target,$token) = @_;
3019: my $currentstring = '';
3020: if ($target eq 'web' || $target eq 'webgrade') {
3021: $currentstring = $token->[2];
3022: } elsif ($target eq 'tex') {
3023: # ./.
3024: }
3025: return $currentstring;
3026: }
3027:
3028: #-- <param> tag (end tag forbidden)
3029: sub start_param {
3030: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3031: my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval,
3032: undef,1);
3033: if ($name =~/^cabbase$/i) {
3034: my $value=&Apache::lonxml::get_param('value',$parstack,
3035: $safeeval,undef,1);
3036: &Apache::lonxml::extlink($value);
3037: } elsif ($name eq 'flashvars') {
3038: if (lc(&Apache::lonxml::get_param('type',$parstack,$safeeval,-2,1))
3039: eq 'application/x-shockwave-flash') {
3040: my $launcher =
3041: &Apache::lonxml::get_param('data',$parstack,$safeeval,-2,1);
3042: if ($launcher) {
3043: &Apache::lonxml::extlink($launcher);
3044: }
3045: my $flashvars=&Apache::lonxml::get_param('value',$parstack,
3046: $safeeval,undef,1);
3047: if ($flashvars ne '') {
3048: foreach my $item (split(/\&/,$flashvars)) {
3049: my ($key,$value)=split(/=/,$item,2);
3050: if ($key eq 'content') {
3051: if ($value ne '') {
3052: my ($dir) = ($launcher =~ m{(.+/)[^/]+$});
3053: &Apache::lonxml::extlink($dir.$value);
3054: }
3055: } elsif ($key eq 'thumb') {
3056: if ($value ne '') {
3057: &Apache::lonxml::extlink($value);
3058: }
3059: }
3060: }
3061: }
3062: }
3063: }
3064: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
3065: if ($src ne '') {
3066: &Apache::lonxml::extlink($src);
3067: }
3068: my $currentstring = '';
3069: if ($target eq 'web' || $target eq 'webgrade') {
3070: my %toconvert;
3071: if ($src) { $toconvert{'src'}= $src; }
3072: if ($name=~/^cabbase$/i) {
3073: $toconvert{'value'}=&Apache::lonxml::get_param('value',$parstack,
3074: $safeeval,undef,1);
3075: }
3076: $currentstring = &Apache::lonenc::encrypt_ref($token,\%toconvert);
3077: } elsif ($target eq 'tex') {
3078: }
3079: return $currentstring;
3080: }
3081:
3082: sub end_param {
3083: my ($target,$token) = @_;
3084: my $currentstring = '';
3085: if ($target eq 'web' || $target eq 'webgrade') {
3086: $currentstring = $token->[2];
3087: } elsif ($target eq 'tex') {
3088: }
3089: return $currentstring;
3090: }
3091:
3092: #-- <allow> tag
3093: sub start_allow {
3094: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3095: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
3096: &Apache::lonxml::extlink($src);
3097:
3098: if ($target eq 'tex') { &image_replication($src); }
3099: my $result;
3100: if ($target eq 'edit') {
3101: $result .=&Apache::edit::tag_start($target,$token);
3102: $result .=&Apache::edit::text_arg('File Spec:','src',$token,70);
3103: $result .=&Apache::edit::end_row();#.&Apache::edit::start_spanning_row();
3104: } elsif ($target eq 'modified') {
3105: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
3106: $safeeval,'src');
3107: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
3108: }
3109: return $result;
3110: }
3111:
3112: sub end_allow {
3113: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3114: if ( $target eq 'edit') { return (&Apache::edit::end_table()); }
3115: return '';
3116: }
3117:
3118: #-- Frames (end tag required)
3119: #-- <frameset>
3120: sub start_frameset {
3121: my ($target,$token) = @_;
3122: my $currentstring = ''; # Close any pending para.
3123: if ($target eq 'web' || $target eq 'webgrade') {
3124: $currentstring =
3125: &Apache::loncommon::start_page($Apache::londefdef::title,
3126: $Apache::londefdef::head,
3127: {'add_entries' => $token->[2],
3128: # 'no_title' => 1,
3129: 'force_register' => 1,
3130: 'frameset' => 1,});
3131:
3132: }
3133: return $currentstring;
3134: }
3135:
3136: sub end_frameset {
3137: my ($target,$token) = @_;
3138: my $currentstring = '';
3139: if ($target eq 'web' || $target eq 'webgrade') {
3140: $currentstring = $token->[2];
3141: }
3142: return $currentstring;
3143: }
3144:
3145: #-- <xmp> (end tag required)
3146: sub start_xmp {
3147: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3148: my $currentstring = '';
3149: if ($target eq 'web' || $target eq 'webgrade') {
3150: $currentstring .= $token->[4];
3151: } elsif ($target eq 'tex') {
3152: $currentstring .= '\begin{verbatim}';
3153: }
3154: return $currentstring;
3155: }
3156:
3157: sub end_xmp {
3158: my ($target,$token) = @_;
3159: my $currentstring = '';
3160: if ($target eq 'web' || $target eq 'webgrade') {
3161: $currentstring .= $token->[2];
3162: } elsif ($target eq 'tex') {
3163: $currentstring .= '\end{verbatim}';
3164: }
3165: return $currentstring;
3166: }
3167:
3168: #-- <pre> (end tag required)
3169: sub start_pre {
3170: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3171: my $currentstring = &end_p(); # close off pending <p>
3172: if ($target eq 'web' || $target eq 'webgrade') {
3173: $currentstring .= $token->[4];
3174: } elsif ($target eq 'tex') {
3175: $currentstring .= '\begin{verbatim}';
3176: &Apache::lonxml::disable_LaTeX_substitutions();
3177: }
3178: return $currentstring;
3179: }
3180:
3181: sub end_pre {
3182: my ($target,$token) = @_;
3183: my $currentstring = '';
3184: if ($target eq 'web' || $target eq 'webgrade') {
3185: $currentstring .= $token->[2];
3186: } elsif ($target eq 'tex') {
3187: $currentstring .= '\end{verbatim}';
3188: &Apache::lonxml::enable_LaTeX_substitutions();
3189: }
3190: return $currentstring;
3191: }
3192:
3193: #-- <insert>
3194: sub start_insert {
3195: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3196: my $currentstring = '';
3197: if ($target eq 'web' || $target eq 'webgrade') {
3198: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
3199: $currentstring .= '<b>'.$display.'</b>';;
3200: }
3201: return $currentstring;
3202: }
3203:
3204: sub end_insert {
3205: my ($target,$token) = @_;
3206: my $currentstring = '';
3207: if ($target eq 'web' || $target eq 'webgrade') {
3208: $currentstring .= '';
3209: }
3210: return $currentstring;
3211: }
3212:
3213: #-- <externallink>
3214: sub start_externallink {
3215: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3216: my $currentstring = '';
3217: if ($target eq 'web' || $target eq 'webgrade') {
3218: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
3219: $currentstring .= '<b>'.$display.'</b>';;
3220: }
3221: return $currentstring;
3222: }
3223:
3224: sub end_externallink {
3225: my ($target,$token) = @_;
3226: my $currentstring = '';
3227: if ($target eq 'web' || $target eq 'webgrade') {
3228: $currentstring .= '';
3229: }
3230: return $currentstring;
3231: }
3232:
3233: #-- <blankspace heigth="">
3234: sub start_blankspace {
3235: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3236: my $currentstring = &end_p(); # closes off any unclosed <p>
3237: if ($target eq 'tex') {
3238: my $howmuch = &Apache::lonxml::get_param('heigth',$parstack,$safeeval,undef,1);
3239: $currentstring .= '\vskip '.$howmuch.' ';
3240: }
3241: return $currentstring;
3242: }
3243:
3244: sub end_blankspace {
3245: my ($target,$token) = @_;
3246: my $currentstring = '';
3247: if ($target eq 'tex') {
3248: $currentstring .= '';
3249: }
3250: return $currentstring;
3251: }
3252:
3253: #-- <abbr> tag (end tag required)
3254: sub start_abbr {
3255: my ($target,$token) = @_;
3256: my $currentstring = '';
3257: if ($target eq 'web' || $target eq 'webgrade') {
3258: $currentstring = $token->[4];
3259: }
3260: return $currentstring;
3261: }
3262:
3263: sub end_abbr {
3264: my ($target,$token) = @_;
3265: my $currentstring = '';
3266: if ($target eq 'web' || $target eq 'webgrade') {
3267: $currentstring = $token->[2];
3268: }
3269: return $currentstring;
3270: }
3271:
3272: #-- <acronym> tag (end tag required)
3273: sub start_acronym {
3274: my ($target,$token) = @_;
3275: my $currentstring = '';
3276: if ($target eq 'web' || $target eq 'webgrade') {
3277: $currentstring = $token->[4];
3278: }
3279: return $currentstring;
3280: }
3281:
3282: sub end_acronym {
3283: my ($target,$token) = @_;
3284: my $currentstring = '';
3285: if ($target eq 'web' || $target eq 'webgrade') {
3286: $currentstring = $token->[2];
3287: }
3288: return $currentstring;
3289: }
3290:
3291: #-- <area> tag (end tag forbidden)
3292: sub start_area {
3293: my ($target,$token) = @_;
3294: my $currentstring = '';
3295: if ($target eq 'web' || $target eq 'webgrade') {
3296: $currentstring = $token->[4];
3297: }
3298: return $currentstring;
3299: }
3300:
3301: sub end_area {
3302: my ($target,$token) = @_;
3303: my $currentstring = '';
3304: if ($target eq 'web' || $target eq 'webgrade') {
3305: $currentstring = $token->[2];
3306: }
3307: return $currentstring;
3308: }
3309:
3310: #-- <base> tag (end tag forbidden)
3311: sub start_base {
3312: my ($target,$token) = @_;
3313: my $currentstring = '';
3314: if ($target eq 'web' || $target eq 'webgrade') {
3315: $currentstring = $token->[4];
3316: }
3317: return $currentstring;
3318: }
3319:
3320: sub end_base {
3321: my ($target,$token) = @_;
3322: my $currentstring = '';
3323: if ($target eq 'web' || $target eq 'webgrade') {
3324: $currentstring = $token->[2];
3325: }
3326: return $currentstring;
3327: }
3328:
3329: #-- <bdo> tag (end tag required)
3330: sub start_bdo {
3331: my ($target,$token) = @_;
3332: my $currentstring = '';
3333: if ($target eq 'web' || $target eq 'webgrade') {
3334: $currentstring = $token->[4];
3335: }
3336: return $currentstring;
3337: }
3338:
3339: sub end_bdo {
3340: my ($target,$token) = @_;
3341: my $currentstring = '';
3342: if ($target eq 'web' || $target eq 'webgrade') {
3343: $currentstring = $token->[2];
3344: }
3345: return $currentstring;
3346: }
3347:
3348: #-- <bgsound> tag (end tag optional)
3349: sub start_bgsound {
3350: my ($target,$token) = @_;
3351: my $currentstring = '';
3352: if ($target eq 'web' || $target eq 'webgrade') {
3353: $currentstring = $token->[4];
3354: }
3355: return $currentstring;
3356: }
3357:
3358: sub end_bgsound {
3359: my ($target,$token) = @_;
3360: my $currentstring = '';
3361: if ($target eq 'web' || $target eq 'webgrade') {
3362: $currentstring = $token->[2];
3363: }
3364: return $currentstring;
3365: }
3366:
3367: #-- <blink> tag (end tag required)
3368: sub start_blink {
3369: my ($target,$token) = @_;
3370: my $currentstring = '';
3371: if ($target eq 'web' || $target eq 'webgrade') {
3372: $currentstring = $token->[4];
3373: }
3374: return $currentstring;
3375: }
3376:
3377: sub end_blink {
3378: my ($target,$token) = @_;
3379: my $currentstring = '';
3380: if ($target eq 'web' || $target eq 'webgrade') {
3381: $currentstring = $token->[2];
3382: }
3383: return $currentstring;
3384: }
3385:
3386: #-- <blockquote> tag (end tag required)
3387: sub start_blockquote {
3388: my ($target,$token) = @_;
3389: my $currentstring = &end_p(); # Close any unclosed <p>
3390: if ($target eq 'web' || $target eq 'webgrade') {
3391: $currentstring .= $token->[4];
3392: }
3393: if ($target eq 'tex') {
3394: $currentstring .= '\begin{quote}';
3395: }
3396: return $currentstring;
3397: }
3398:
3399: sub end_blockquote {
3400: my ($target,$token) = @_;
3401: my $currentstring = '';
3402: if ($target eq 'web' || $target eq 'webgrade') {
3403: $currentstring = $token->[2];
3404: }
3405: if ($target eq 'tex') {
3406: $currentstring = '\end{quote}';
3407: }
3408: return $currentstring;
3409: }
3410:
3411: #-- <button> tag (end tag required)
3412: sub start_button {
3413: my ($target,$token) = @_;
3414: my $currentstring = '';
3415: if ($target eq 'web' || $target eq 'webgrade') {
3416: $currentstring = $token->[4];
3417: }
3418: return $currentstring;
3419: }
3420:
3421: sub end_button {
3422: my ($target,$token) = @_;
3423: my $currentstring = '';
3424: if ($target eq 'web' || $target eq 'webgrade') {
3425: $currentstring = $token->[2];
3426: }
3427: return $currentstring;
3428: }
3429:
3430: #-- <caption> tag (end tag required)
3431: sub start_caption {
3432: my ($target,$token) = @_;
3433: my $currentstring = '';
3434: if ($target eq 'web' || $target eq 'webgrade') {
3435: $currentstring = $token->[4];
3436: }
3437: return $currentstring;
3438: }
3439:
3440: sub end_caption {
3441: my ($target,$token) = @_;
3442: my $currentstring = '';
3443: if ($target eq 'web' || $target eq 'webgrade') {
3444: $currentstring = $token->[2];
3445: }
3446: return $currentstring;
3447: }
3448:
3449: #-- <col> tag (end tag forbdden)
3450: sub start_col {
3451: my ($target,$token) = @_;
3452: my $currentstring = '';
3453: if ($target eq 'web' || $target eq 'webgrade') {
3454: $currentstring = $token->[4];
3455: }
3456: return $currentstring;
3457: }
3458:
3459: sub end_col {
3460: my ($target,$token) = @_;
3461: my $currentstring = '';
3462: if ($target eq 'web' || $target eq 'webgrade') {
3463: $currentstring = $token->[2];
3464: }
3465: return $currentstring;
3466: }
3467:
3468: #-- <colgroup tag (end tag optional)
3469: sub start_colgroup {
3470: my ($target,$token,$tagstack, $parstack, $parser, $safeeval, $style) = @_;
3471: my $currentstring = '';
3472: if ($target eq 'web' || $target eq 'webgrade') {
3473: $currentstring = $token->[4];
3474: }
3475: if ($target eq 'tex') {
3476: # TODO: Ensure this tag is in a table:
3477:
3478: # Fetch the attributes and build the hash for the
3479: # call to define_colgroup.
3480:
3481: my $span = &Apache::lonxml::get_param('span', $parstack, $safeeval);
3482: my $halign = &Apache::lonxml::get_param('halign', $parstack, $safeeval);
3483:
3484: my %colgroup_params;
3485: if ($span ne '') {
3486: $colgroup_params{'span'} = $span;
3487: }
3488: if ($halign ne '') {
3489: $colgroup_params{'halign'} = $halign;
3490: }
3491:
3492: my $table = $Apache::londefdef::table[-1];
3493: $table->define_colgroup(\%colgroup_params);
3494:
3495: }
3496: return $currentstring;
3497: }
3498:
3499: sub end_colgroup {
3500: my ($target,$token) = @_;
3501: my $currentstring = '';
3502: if ($target eq 'web' || $target eq 'webgrade') {
3503: $currentstring = $token->[2];
3504: }
3505: return $currentstring;
3506: }
3507:
3508:
3509: #-- <del> tag (end tag required)
3510: sub start_del {
3511: my ($target,$token) = @_;
3512: my $currentstring = '';
3513: if ($target eq 'web' || $target eq 'webgrade') {
3514: $currentstring = $token->[4];
3515: } elsif ($target eq 'tex') {
3516: &disable_para();
3517: $currentstring .= '\st{';
3518: }
3519: return $currentstring;
3520: }
3521:
3522: sub end_del {
3523: my ($target,$token) = @_;
3524: my $currentstring = '';
3525: if ($target eq 'web' || $target eq 'webgrade') {
3526: $currentstring = $token->[2];
3527: } elsif ($target eq 'tex') {
3528: &enable_para();
3529: $currentstring = '}';
3530: }
3531: return $currentstring;
3532: }
3533:
3534: #-- <fieldset> tag (end tag required)
3535: sub start_fieldset {
3536: my ($target,$token) = @_;
3537: my $currentstring = '';
3538: if ($target eq 'web' || $target eq 'webgrade') {
3539: $currentstring = $token->[4];
3540: }
3541: return $currentstring;
3542: }
3543:
3544: sub end_fieldset {
3545: my ($target,$token) = @_;
3546: my $currentstring = '';
3547: if ($target eq 'web' || $target eq 'webgrade') {
3548: $currentstring = $token->[2];
3549: }
3550: return $currentstring;
3551: }
3552:
3553: #-- <frame> tag (end tag forbidden)
3554: sub start_frame {
3555: my ($target,$token) = @_;
3556: my $currentstring = '';
3557: if ($target eq 'web' || $target eq 'webgrade') {
3558: $currentstring = $token->[4];
3559: }
3560: return $currentstring;
3561: }
3562:
3563: sub end_frame {
3564: my ($target,$token) = @_;
3565: my $currentstring = '';
3566: if ($target eq 'web' || $target eq 'webgrade') {
3567: $currentstring = $token->[2];
3568: }
3569: return $currentstring;
3570: }
3571:
3572: #-- <iframe> tag (end tag required)
3573: sub start_iframe {
3574: my ($target,$token) = @_;
3575: my $currentstring = '';
3576: if ($target eq 'web' || $target eq 'webgrade') {
3577: my ($src,$url,$query);
3578: if ($token->[2]->{'src'}) {
3579: $src = $token->[2]->{'src'};
3580: } elsif ($token->[2]->{'SRC'}) {
3581: $src = $token->[2]->{'SRC'};
3582: }
3583: if ($src) {
3584: ($url,$query) = ($src =~ /^([^?]+)\??([^?]*)$/);
3585: if ($query =~ /inhibitmenu=yes/) {
3586: $currentstring = $token->[4];
3587: } else {
3588: my $inhibit;
3589: if ($url =~ m{^[^/.].*\.x?html?$}) {
3590: $inhibit = 1;
3591: } elsif ($url =~ m{^/(uploaded|res)/.*\.x?html?$}) {
3592: $inhibit = 1;
3593: }
3594: if ($inhibit) {
3595: $currentstring = '<iframe ';
3596: foreach my $attrib (@{$token->[3]}) {
3597: if (lc($attrib) eq 'src') {
3598: if ($query) {
3599: $query.='&inhibitmenu=yes';
3600: } else {
3601: $query = 'inhibitmenu=yes';
3602: }
3603: $currentstring .= 'src="'.$url.'?'.$query.'" ';
3604: } else {
3605: $currentstring .= lc($attrib).'="'.$token->[2]->{$attrib}.'" ';
3606: }
3607: }
3608: $currentstring =~ s/\s+$//;
3609: $currentstring .= '>';
3610: } else {
3611: $currentstring = $token->[4];
3612: }
3613: }
3614: } else {
3615: $currentstring = $token->[4];
3616: }
3617: }
3618: return $currentstring;
3619: }
3620:
3621: sub end_iframe {
3622: my ($target,$token) = @_;
3623: my $currentstring = '';
3624: if ($target eq 'web' || $target eq 'webgrade') {
3625: $currentstring = $token->[2];
3626: }
3627: return $currentstring;
3628: }
3629:
3630: #-- <ins> tag (end tag required)
3631: sub start_ins {
3632: my ($target,$token) = @_;
3633: my $currentstring = '';
3634: if ($target eq 'web' || $target eq 'webgrade') {
3635: $currentstring = $token->[4];
3636: }
3637: return $currentstring;
3638: }
3639:
3640: sub end_ins {
3641: my ($target,$token) = @_;
3642: my $currentstring = '';
3643: if ($target eq 'web' || $target eq 'webgrade') {
3644: $currentstring = $token->[2];
3645: }
3646: return $currentstring;
3647: }
3648:
3649: #-- <isindex> tag (end tag forbidden)
3650: sub start_isindex {
3651: my ($target,$token) = @_;
3652: my $currentstring = '';
3653: if ($target eq 'web' || $target eq 'webgrade') {
3654: $currentstring = $token->[4];
3655: }
3656: return $currentstring;
3657: }
3658:
3659: sub end_isindex {
3660: my ($target,$token) = @_;
3661: my $currentstring = '';
3662: if ($target eq 'web' || $target eq 'webgrade') {
3663: $currentstring = $token->[2];
3664: }
3665: return $currentstring;
3666: }
3667:
3668: #-- <keygen> tag (end tag forbidden)
3669: sub start_keygen {
3670: my ($target,$token) = @_;
3671: my $currentstring = '';
3672: if ($target eq 'web' || $target eq 'webgrade') {
3673: $currentstring = $token->[4];
3674: }
3675: return $currentstring;
3676: }
3677:
3678: sub end_keygen {
3679: my ($target,$token) = @_;
3680: my $currentstring = '';
3681: if ($target eq 'web' || $target eq 'webgrade') {
3682: $currentstring = $token->[2];
3683: }
3684: return $currentstring;
3685: }
3686:
3687: #-- <label> tag
3688: sub start_label {
3689: my ($target,$token) = @_;
3690: my $currentstring = '';
3691: if ($target eq 'web' || $target eq 'webgrade') {
3692: $currentstring = $token->[4];
3693: }
3694: return $currentstring;
3695: }
3696:
3697: sub end_label {
3698: my ($target,$token) = @_;
3699: my $currentstring = '';
3700: if ($target eq 'web' || $target eq 'webgrade') {
3701: $currentstring = $token->[2];
3702: }
3703: return $currentstring;
3704: }
3705:
3706: #-- <layer> tag (end tag required)
3707: sub start_layer {
3708: my ($target,$token) = @_;
3709: my $currentstring = '';
3710: if ($target eq 'web' || $target eq 'webgrade') {
3711: $currentstring = $token->[4];
3712: }
3713: return $currentstring;
3714: }
3715:
3716: sub end_layer {
3717: my ($target,$token) = @_;
3718: my $currentstring = '';
3719: if ($target eq 'web' || $target eq 'webgrade') {
3720: $currentstring = $token->[2];
3721: }
3722: return $currentstring;
3723: }
3724:
3725: #-- <legend> tag (end tag required)
3726: sub start_legend {
3727: my ($target,$token) = @_;
3728: my $currentstring = '';
3729: if ($target eq 'web' || $target eq 'webgrade') {
3730: $currentstring = $token->[4];
3731: }
3732: return $currentstring;
3733: }
3734:
3735: sub end_legend {
3736: my ($target,$token) = @_;
3737: my $currentstring = '';
3738: if ($target eq 'web' || $target eq 'webgrade') {
3739: $currentstring = $token->[2];
3740: }
3741: return $currentstring;
3742: }
3743:
3744: #-- <link> tag (end tag forbidden)
3745: sub start_link {
3746: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3747: my $currentstring = '';
3748: if ($target eq 'web' || $target eq 'webgrade') {
3749: my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
3750: undef,1);
3751: &Apache::lonxml::extlink($href);
3752: $currentstring = $token->[4];
3753: }
3754: return $currentstring;
3755: }
3756:
3757: sub end_link {
3758: my ($target,$token) = @_;
3759: my $currentstring = '';
3760: if ($target eq 'web' || $target eq 'webgrade') {
3761: $currentstring = $token->[2];
3762: }
3763: return $currentstring;
3764: }
3765:
3766: #-- <marquee> tag (end tag optional)
3767: sub start_marquee {
3768: my ($target,$token) = @_;
3769: my $currentstring = '';
3770: if ($target eq 'web' || $target eq 'webgrade') {
3771: $currentstring = $token->[4];
3772: }
3773: return $currentstring;
3774: }
3775:
3776: sub end_marquee {
3777: my ($target,$token) = @_;
3778: my $currentstring = '';
3779: if ($target eq 'web' || $target eq 'webgrade') {
3780: $currentstring = $token->[2];
3781: }
3782: return $currentstring;
3783: }
3784:
3785: #-- <multicol> tag (end tag required)
3786: sub start_multicol {
3787: my ($target,$token) = @_;
3788: my $currentstring = &end_p(); # Close any pending <p>
3789: if ($target eq 'web' || $target eq 'webgrade') {
3790: $currentstring .= $token->[4];
3791: }
3792: return $currentstring;
3793: }
3794:
3795: sub end_multicol {
3796: my ($target,$token) = @_;
3797: my $currentstring = '';
3798: if ($target eq 'web' || $target eq 'webgrade') {
3799: $currentstring = $token->[2];
3800: }
3801: return $currentstring;
3802: }
3803:
3804: #-- <nobr> tag (end tag required)
3805: sub start_nobr {
3806: my ($target,$token) = @_;
3807: my $currentstring = '';
3808: if ($target eq 'web' || $target eq 'webgrade') {
3809: $currentstring = $token->[4];
3810: } elsif ($target eq 'tex') {
3811: $currentstring='\mbox{';
3812: }
3813: return $currentstring;
3814: }
3815:
3816: sub end_nobr {
3817: my ($target,$token) = @_;
3818: my $currentstring = '';
3819: if ($target eq 'web' || $target eq 'webgrade') {
3820: $currentstring = $token->[2];
3821: } elsif ($target eq 'tex') {
3822: $currentstring='}';
3823: }
3824: return $currentstring;
3825: }
3826:
3827: #-- <noembed> tag (end tag required)
3828: sub start_noembed {
3829: my ($target,$token) = @_;
3830: my $currentstring = '';
3831: if ($target eq 'web' || $target eq 'webgrade') {
3832: $currentstring = $token->[4];
3833: }
3834: return $currentstring;
3835: }
3836:
3837: sub end_noembed {
3838: my ($target,$token) = @_;
3839: my $currentstring = '';
3840: if ($target eq 'web' || $target eq 'webgrade') {
3841: $currentstring = $token->[2];
3842: }
3843: return $currentstring;
3844: }
3845:
3846: #-- <noframes> tag (end tag required)
3847: sub start_noframes {
3848: my ($target,$token) = @_;
3849: my $currentstring = '';
3850: if ($target eq 'web' || $target eq 'webgrade') {
3851: $currentstring = $token->[4];
3852: }
3853: return $currentstring;
3854: }
3855:
3856: sub end_noframes {
3857: my ($target,$token) = @_;
3858: my $currentstring = '';
3859: if ($target eq 'web' || $target eq 'webgrade') {
3860: $currentstring = $token->[2];
3861: }
3862: return $currentstring;
3863: }
3864:
3865: #-- <nolayer> tag (end tag required)
3866: sub start_nolayer {
3867: my ($target,$token) = @_;
3868: my $currentstring = '';
3869: if ($target eq 'web' || $target eq 'webgrade') {
3870: $currentstring = $token->[4];
3871: }
3872: return $currentstring;
3873: }
3874:
3875: sub end_nolayer {
3876: my ($target,$token) = @_;
3877: my $currentstring = '';
3878: if ($target eq 'web' || $target eq 'webgrade') {
3879: $currentstring = $token->[2];
3880: }
3881: return $currentstring;
3882: }
3883:
3884: #-- <noscript> tag (end tag required)
3885: sub start_noscript {
3886: my ($target,$token) = @_;
3887: my $currentstring = '';
3888: if ($target eq 'web' || $target eq 'webgrade') {
3889: $currentstring = $token->[4];
3890: }
3891: return $currentstring;
3892: }
3893:
3894: sub end_noscript {
3895: my ($target,$token) = @_;
3896: my $currentstring = '';
3897: if ($target eq 'web' || $target eq 'webgrade') {
3898: $currentstring = $token->[2];
3899: }
3900: return $currentstring;
3901: }
3902:
3903: #-- <object> tag (end tag required)
3904: sub start_object {
3905: my ($target,$token) = @_;
3906: my $currentstring = '';
3907: if ($target eq 'web' || $target eq 'webgrade') {
3908: $currentstring = $token->[4];
3909: }
3910: return $currentstring;
3911: }
3912:
3913: sub end_object {
3914: my ($target,$token) = @_;
3915: my $currentstring = '';
3916: if ($target eq 'web' || $target eq 'webgrade') {
3917: $currentstring = $token->[2];
3918: }
3919: return $currentstring;
3920: }
3921:
3922: #-- <optgroup> tag (end tag required)
3923: sub start_optgroup {
3924: my ($target,$token) = @_;
3925: my $currentstring = '';
3926: if ($target eq 'web' || $target eq 'webgrade') {
3927: $currentstring = $token->[4];
3928: }
3929: return $currentstring;
3930: }
3931:
3932: sub end_optgroup {
3933: my ($target,$token) = @_;
3934: my $currentstring = '';
3935: if ($target eq 'web' || $target eq 'webgrade') {
3936: $currentstring = $token->[2];
3937: }
3938: return $currentstring;
3939: }
3940:
3941: #-- <samp> tag (end tag required)
3942: sub start_samp {
3943: my ($target,$token) = @_;
3944: my $currentstring = '';
3945: if ($target eq 'web' || $target eq 'webgrade') {
3946: $currentstring = $token->[4];
3947: } elsif ($target eq 'tex') {
3948: $currentstring='\texttt{';
3949: }
3950: return $currentstring;
3951: }
3952:
3953: sub end_samp {
3954: my ($target,$token) = @_;
3955: my $currentstring = '';
3956: if ($target eq 'web' || $target eq 'webgrade') {
3957: $currentstring = $token->[2];
3958: } elsif ($target eq 'tex') {
3959: $currentstring='}';
3960: }
3961: return $currentstring;
3962: }
3963:
3964: #-- <server> tag
3965: sub start_server {
3966: my ($target,$token) = @_;
3967: my $currentstring = '';
3968: if ($target eq 'web' || $target eq 'webgrade') {
3969: $currentstring = $token->[4];
3970: }
3971: return $currentstring;
3972: }
3973:
3974: sub end_server {
3975: my ($target,$token) = @_;
3976: my $currentstring = '';
3977: if ($target eq 'web' || $target eq 'webgrade') {
3978: $currentstring = $token->[2];
3979: }
3980: return $currentstring;
3981: }
3982:
3983: #-- <spacer> tag (end tag forbidden)
3984: sub start_spacer {
3985: my ($target,$token) = @_;
3986: my $currentstring = &end_p(); # Close off any open <p> tag.
3987: if ($target eq 'web' || $target eq 'webgrade') {
3988: $currentstring .= $token->[4];
3989: }
3990: return $currentstring;
3991: }
3992:
3993: sub end_spacer {
3994: my ($target,$token) = @_;
3995: my $currentstring = '';
3996: if ($target eq 'web' || $target eq 'webgrade') {
3997: $currentstring = $token->[2];
3998: }
3999: return $currentstring;
4000: }
4001:
4002: #-- <span> tag (end tag required)
4003: sub start_span {
4004: my ($target,$token) = @_;
4005: my $currentstring = '';
4006: if ($target eq 'web' || $target eq 'webgrade') {
4007: $currentstring = $token->[4];
4008: }
4009: return $currentstring;
4010: }
4011:
4012: sub end_span {
4013: my ($target,$token) = @_;
4014: my $currentstring = '';
4015: if ($target eq 'web' || $target eq 'webgrade') {
4016: $currentstring = $token->[2];
4017: }
4018: return $currentstring;
4019: }
4020:
4021: #-- <tbody> tag (end tag optional)
4022: sub start_tbody {
4023: my ($target,$token) = @_;
4024: my $currentstring = '';
4025: if ($target eq 'web' || $target eq 'webgrade') {
4026: $currentstring = $token->[4];
4027: }
4028: if ($target eq 'tex') {
4029: # TODO: Ensure this tag is within a table:
4030:
4031: my $table = $Apache::londefdef::table[-1];
4032: $table->start_body();
4033: }
4034: return $currentstring;
4035: }
4036:
4037: sub end_tbody {
4038: my ($target,$token) = @_;
4039: my $currentstring = '';
4040: if ($target eq 'web' || $target eq 'webgrade') {
4041: $currentstring = $token->[2];
4042: }
4043: if($target eq 'tex') {
4044: # TODO: Ensure this tag is within a table:
4045:
4046: my $table = $Apache::londefdef::table[-1];
4047: $table->end_body();
4048: }
4049: return $currentstring;
4050: }
4051:
4052: #-- <tfoot> tag (end tag optional)
4053: sub start_tfoot {
4054: my ($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 is within a table tag.
4061: my $table = $Apache::londefdef::table[-1];
4062: $table->start_foot();
4063: }
4064: return $currentstring;
4065: }
4066:
4067: sub end_tfoot {
4068: my ($target,$token) = @_;
4069: my $currentstring = '';
4070: if ($target eq 'web' || $target eq 'webgrade') {
4071: $currentstring = $token->[2];
4072: }
4073: if ($target eq 'tex') {
4074: # TODO: Ensure this is in side a table
4075: my $table = $Apache::londefdef::table[-1];
4076: $table->end_foot();
4077: }
4078: return $currentstring;
4079: }
4080:
4081: #-- <thead> tag (end tag optional)
4082: sub start_thead {
4083: my ($target,$token) = @_;
4084: my $currentstring = '';
4085: if ($target eq 'web' || $target eq 'webgrade') {
4086: $currentstring = $token->[4];
4087: }
4088: if ($target eq 'tex') {
4089: # Assume we're in a table... TODO: Verify that and ignore tag if not.
4090: my $table = $Apache::londefdef::table[-1];
4091: $table->start_head();
4092: }
4093: return $currentstring;
4094: }
4095:
4096: sub end_thead {
4097: my ($target,$token) = @_;
4098: my $currentstring = '';
4099: if ($target eq 'web' || $target eq 'webgrade') {
4100: $currentstring = $token->[2];
4101: }
4102: if ($target eq 'tex') {
4103: # TODO: Verify we are in a table and ignore tag if not.
4104:
4105: my $table = $Apache::londefdef::table[-1];
4106: $table->end_head();
4107: }
4108: return $currentstring;
4109: }
4110:
4111: #-- <var> tag
4112: sub start_var {
4113: my ($target,$token) = @_;
4114: my $currentstring = '';
4115: if ($target eq 'web' || $target eq 'webgrade') {
4116: $currentstring = $token->[4];
4117: } elsif ($target eq 'tex') {
4118: $currentstring = '\textit{';
4119: }
4120: return $currentstring;
4121: }
4122:
4123: sub end_var {
4124: my ($target,$token) = @_;
4125: my $currentstring = '';
4126: if ($target eq 'web' || $target eq 'webgrade') {
4127: $currentstring = $token->[2];
4128: } elsif ($target eq 'tex') {
4129: $currentstring = '}';
4130: }
4131: return $currentstring;
4132: }
4133:
4134: #-- <wbr> tag (end tag forbidden)
4135: sub start_wbr {
4136: my ($target,$token) = @_;
4137: my $currentstring = '';
4138: if ($target eq 'web' || $target eq 'webgrade') {
4139: $currentstring = $token->[4];
4140: }
4141: return $currentstring;
4142: }
4143:
4144: sub end_wbr {
4145: my ($target,$token) = @_;
4146: my $currentstring = '';
4147: if ($target eq 'web' || $target eq 'webgrade') {
4148: $currentstring = $token->[2];
4149: }
4150: return $currentstring;
4151: }
4152:
4153: #-- <hideweboutput> tag
4154: sub start_hideweboutput {
4155: my ($target,$token) = @_;
4156: if ($target eq 'web' || $target eq 'webgrade') {
4157: &Apache::lonxml::startredirection();
4158: }
4159: return '';
4160: }
4161:
4162: sub end_hideweboutput {
4163: my ($target,$token) = @_;
4164: my $currentstring = '';
4165: if ($target eq 'web' || $target eq 'webgrade') {
4166: $currentstring = &Apache::lonxml::endredirection();
4167: }
4168: return '';
4169: }
4170:
4171:
4172: sub image_replication {
4173: my $src = shift;
4174: if (not -e $src) { &Apache::lonnet::repcopy($src); }
4175: #replicates eps or ps
4176: my $epssrc = my $pssrc = $src;
4177: $epssrc =~ s/\.(gif|jpg|jpeg|png)$/.eps/i;
4178: $pssrc =~ s/\.(gif|jpg|jpeg|png)$/.ps/i;
4179: if (not -e $epssrc && not -e $pssrc) {
4180: my $result=&Apache::lonnet::repcopy($epssrc);
4181: if ($result ne 'ok') { &Apache::lonnet::repcopy($pssrc); }
4182: }
4183: return '';
4184: }
4185:
4186:
4187:
4188: sub resize_image {
4189: my ($height_param, $width_param, $scaling,
4190: $parstack, $safeeval, $depth, $cis) = @_;
4191:
4192: # First apply the scaling...
4193:
4194: $height_param = $height_param * $scaling;
4195: $width_param = $width_param * $scaling;
4196:
4197: #do we have any specified LaTeX size of the picture?
4198: my $toget='TeXwidth';
4199: if ($cis) {
4200: $toget=lc($toget);
4201: }
4202: my $TeXwidth = &Apache::lonxml::get_param($toget,$parstack,
4203: $safeeval,$depth,$cis);
4204: $toget='TeXheight'; if ($cis) { $toget=lc($toget); }
4205: my $TeXheight = &Apache::lonxml::get_param($toget,$parstack,
4206: $safeeval,$depth,$cis);
4207: #do we have any specified web size of the picture?
4208: my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval,
4209: $depth,1);
4210: if ($TeXwidth) {
4211: my $old_width_param=$width_param;
4212: if ($TeXwidth=~/(\d+)\s*\%/) {
4213: $width_param = $1*$env{'form.textwidth'}/100;
4214: } else {
4215: $width_param = $TeXwidth;
4216: }
4217: if ($TeXheight) {
4218: $height_param = $TeXheight;
4219: } elsif ($old_width_param) {
4220: $height_param=$TeXwidth/$old_width_param*$height_param;
4221: }
4222: } elsif ($TeXheight) {
4223: $height_param = $TeXheight;
4224: if ($height_param) {
4225: $width_param = $TeXheight/$height_param*$width_param;
4226: }
4227: } elsif ($width) {
4228: my $old_width_param=$width_param;
4229: $width_param = $width*$scaling;
4230: if ($old_width_param) {
4231: $height_param=$width_param/$old_width_param*$height_param;
4232: }
4233: }
4234: if ($width_param > $env{'form.textwidth'}) {
4235: my $old_width_param=$width_param;
4236: $width_param =0.95*$env{'form.textwidth'};
4237: if ($old_width_param) {
4238: $height_param=$width_param/$old_width_param*$height_param;
4239: }
4240: }
4241:
4242: return ($height_param, $width_param);
4243: }
4244:
4245: sub image_size {
4246: my ($src,$scaling,$parstack,$safeeval,$depth,$cis)=@_;
4247:
4248: #size of image from gif/jpg/jpeg/png
4249: my $ressrc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
4250: if (-e $ressrc) {
4251: $src = $ressrc;
4252: }
4253: my $image = Image::Magick->new;
4254: my $current_figure = $image->Read($src);
4255: my $width_param = $image->Get('width');
4256: my $height_param = $image->Get('height');
4257: &Apache::lonxml::debug("Image magick says: $src : Height = $height_param width = $width_param");
4258: undef($image);
4259:
4260: ($height_param, $width_param) = &resize_image($height_param, $width_param,
4261: $scaling, $parstack, $safeeval,
4262: $depth, $cis);
4263:
4264: return ($height_param, $width_param);
4265: }
4266:
4267: sub image_width {
4268: my ($height, $width) = &image_size(@_);
4269: return $width;
4270: }
4271: # Not yet 100% sure this is correct in all circumstances..
4272: # due to my uncertainty about mods to image_size.
4273: #
4274: sub image_height {
4275: my ($height, $width) = &image_size(@_);
4276: return $height;
4277: }
4278:
4279: sub get_eps_image {
4280: my ($src)=@_;
4281: my $orig_src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1], $src);
4282:
4283: # In order to prevent the substitution of the alt text, we need to
4284: # be sure the orig_src file is on system now so:
4285:
4286: if (! -e $orig_src) {
4287: &Apache::lonnet::repcopy($orig_src); # Failure is not completely fatal.
4288: }
4289: &Apache::lonxml::debug("get_eps_image: Original image: $orig_src");
4290: my ($spath, $sname, $sext) = &fileparse($src, qr/\.(bmp|gif|png|jpg|jpeg)/i);
4291: $src=~s/\.(bmp|gif|png|jpg|jpeg)$/\.eps/i;
4292: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
4293: &Apache::lonxml::debug("Filelocation gives: $src");
4294: if (! -e $src) {
4295: &Apache::lonxml::debug("$src does not exist");
4296: if (&Apache::lonnet::repcopy($src) ne 'ok' ) {
4297: &Apache::lonxml::debug("Repcopy of $src failed (1)");
4298: #if replication failed try to find ps file
4299: $src=~s/\.eps$/\.ps/;
4300: &Apache::lonxml::debug("Now looking for $src");
4301: #if no ps file try to replicate it.
4302: my $didrepcopy = &Apache::lonnet::repcopy($src);
4303: &Apache::lonxml::debug("repcopy of $src ... $didrepcopy");
4304: if ( (not -e $src) ||
4305: ($didrepcopy ne 'ok')) {
4306: &Apache::lonxml::debug("Failed to find or replicate $src");
4307:
4308: #if replication failed try to produce eps file dynamically
4309: $src=~s/\.ps$/\.eps/;
4310: if (open(FILE,">>/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat")) {
4311: my $newsrc=$orig_src;
4312: $newsrc =~ s|(.*)/res/|/home/httpd/html/res/|;
4313: &Apache::lonxml::debug("queueing $newsrc for dynamic eps production.");
4314: print FILE ("$newsrc\n");
4315: close(FILE);
4316: }
4317: $src=~s|/home/httpd/html/res|/home/httpd/prtspool|;
4318: $src=~s|/home/httpd/html/priv/[^/]+/([^/]*)/|/home/httpd/prtspool/$1/|;
4319: if ($sext ne "") { # Put the ext. back in to uniquify.
4320: $src =~ s/\.eps$/$sext.eps/;
4321: }
4322:
4323: }
4324:
4325: }
4326: } else {
4327: # If the postscript file has spaces in its name,
4328: # LaTeX will gratuitiously vomit. Therefore
4329: # queue such files for copy with " " replaced by "_".
4330: # printout.pm will know them by their .ps or .eps extensions.
4331: my $newsrc = $orig_src;
4332: $newsrc =~ s|(.*)/res/|/home/httpd/html/res/|;
4333: open(FILE,">>/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat");
4334: print FILE "$src\n";
4335: close FILE;
4336: $src=~s|/home/httpd/html/res|/home/httpd/prtspool|;
4337: $src=~s|/home/httpd/html/priv/[^/]+/([^/]*)/|/home/httpd/prtspool/$1/|;
4338: }
4339: my ($path,$file)=($src=~m|(.*)/([^/]*)$|);
4340: $path =~ s/ /\_/g;
4341: $file =~ s/ /\_/g;
4342: &Apache::lonxml::debug("get_eps_image returning: $path / $file<BR />");
4343: return ($path.'/',$file);
4344: }
4345:
4346: sub eps_generation {
4347: my ($src,$file,$width_param) = @_;
4348: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat";
4349: if (open(my $tmpfile,">>$filename")) {
4350: print $tmpfile "$src\n";
4351: close($tmpfile);
4352: }
4353: my $newsrc = $src;
4354: $newsrc =~ s/(\.bmp|\.gif|\.jpg|\.jpeg)$/\.eps/i;
4355: $newsrc=~s{/home/httpd/html/res}{};
4356: $newsrc=~s{/home/httpd/html/priv/[^/]+/($LONCAPA::username_re)/}{/$1/};
4357: $newsrc=~s{/\./}{/};
4358: $newsrc=~s{/([^/]+)\.(ps|eps)}{/};
4359: if ($newsrc=~m{/home/httpd/lonUsers/}) {
4360: $newsrc=~s{/home/httpd/lonUsers}{};
4361: $newsrc=~s{/($LONCAPA::domain_re)/./././}{/$1/};
4362: }
4363: if ($newsrc=~m{/userfiles/}) {
4364: return ' \graphicspath{{'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4365: } else {
4366: return ' \graphicspath{{/home/httpd/prtspool'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4367: }
4368: }
4369:
4370: sub file_path {
4371: my $src=shift;
4372: my ($file,$path);
4373: if ($src =~ m!(.*)/([^/]*)$!) {
4374: $file = $2;
4375: $path = $1.'/';
4376: }
4377: return $file,$path;
4378: }
4379:
4380:
4381: sub recalc {
4382: my $argument = shift;
4383: if (not $argument=~/(mm|cm|in|pc|pt)/) {return $argument.' mm';}
4384: $argument=~/\s*(\d+\.?\d*)\s*(mm|cm|in|pc|pt)/;
4385: my $value=$1;
4386: my $units=$2;
4387: if ($units eq 'cm') {
4388: $value*=10;
4389: } elsif ($units eq 'in') {
4390: $value*=25.4;
4391: } elsif ($units eq 'pc') {
4392: $value*=(25.4*12/72.27);
4393: } elsif ($units eq 'pt') {
4394: $value*=(25.4/72.27);
4395: }
4396: return $value.' mm';
4397: }
4398:
4399: sub LATEX_length {
4400: my $garbage=shift;
4401: $garbage=~s/^\s+$//;
4402: $garbage=~s/^\s+(\S.*)/$1/;#space before
4403: $garbage=~s/(.*\S)\s+$/$1/;#space after
4404: $garbage=~s/(\s)+/$1/;#only one space
4405: $garbage=~s/(\\begin{([^\}]+)}|\\end{([^\}]+)})//g;#remove LaTeX \begin{...} and \end{...}
4406: $garbage=~s/(\$\_\{|\$\_|\$\^{|\$\^|\}\$)//g;#remove $_{,$_,$^{,$^,}$
4407: $garbage=~s/([^\\])\$/$1/g;#$
4408: $garbage=~s/(\\ensuremath\{\_\{|\\ensuremath\{\_|\\ensuremath\{\^{|\\ensuremath\{\^|\})//g;#remove \ensuremath{...}
4409: $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;
4410: $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;
4411: $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;
4412: $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;
4413: $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;
4414: $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;
4415: $garbage=~s/(\\hat{([^}]+)}|\\check{([^}]+)}|\\dot{([^}]+)}|\\breve{([^}]+)}|\\acute{([^}]+)}|\\ddot{([^}]+)}|\\grave{([^}]+)}|\\tilde{([^}]+)}|\\mathring{([^}]+)}|\\bar{([^}]+)}|\\vec{([^}]+)})/$1/g;
4416: #remove some other LaTeX command
4417: $garbage=~s|\\(\w+)\\|\\|g;
4418: $garbage=~s|\\(\w+)(\s*)|$2|g;
4419: $garbage=~s|\+|11|g;
4420: my $value=length($garbage);
4421: return $value;
4422: }
4423:
4424:
4425: sub align_latex_image {
4426: my ($align, $latex_rendering, $image, $width, $height) = @_;
4427: my $currentstring; # The 1/2 wrapped image.
4428: my $closure; # The closure of the wrappage.
4429:
4430: # if it's none just return it back
4431: if ($latex_rendering eq 'none') {
4432: return ($image,'');
4433: }
4434:
4435: # If there's an alignment specification we need to honor it here.
4436: # For the horizontal alignments, we will also honor the
4437: # value of the latex specfication. The default is parbox,
4438: # and that's used for illegal values too.
4439: #
4440: # Even though we set a default alignment value, the user
4441: # could have given us an illegal value. In that case we
4442: # just use the default alignment of bottom..
4443: $currentstring = '';
4444: if ($align eq "top") {
4445: $currentstring .= '\raisebox{-'.$height.'mm}{'.$image;
4446: $closure = '}';
4447: } elsif (($align eq "center") || ($align eq "middle")) { # Being kind
4448: my $offset = $height/2;
4449: $currentstring .= '\raisebox{-'.$offset.'mm}{'.$image;
4450: $closure = '}';
4451: } elsif ($align eq "left") {
4452: if ($latex_rendering eq "parpic") {
4453: $currentstring .= '\parpic[l]{'.$image;
4454: $closure = '}';
4455: } elsif ($latex_rendering eq "parbox") {
4456: $currentstring .= '\begin{minipage}[l]{'.$width.'mm}'
4457: .$image;
4458: $closure = '\end{minipage}';
4459: } elsif ($latex_rendering eq "wrapfigure"
4460: || $latex_rendering ne 'none') { # wrapfig render
4461: $currentstring .=
4462: '\begin{wrapfigure}{l}{'.$width.'mm}'
4463: .'\scalebox{1.0}{'.$image;
4464: $closure = '}\end{wrapfigure}';
4465: }
4466: } elsif ($align eq "right") {
4467: if ($latex_rendering eq "parpic") {
4468: $currentstring .= '\parpic[r]{'.$image;
4469: $closure = '}';
4470: } elsif ($latex_rendering eq "parbox") {
4471: $currentstring .= '\begin{minipage}[r]{'.$width.'mm}'
4472: .$image;
4473: $closure = '\end{minipage}';
4474: } elsif ($latex_rendering eq "wrapfigure"
4475: || $latex_rendering ne 'none') { # wrapfig render
4476: $currentstring .=
4477: '\begin{wrapfigure}{r}{'.$width.'mm}'
4478: .'\scalebox{1.0}{'.$image;
4479: $closure = '}\end{wrapfigure}';
4480: }
4481: } else { # Bottom is also default.
4482: # $currentstring = '\raisebox{'.$height.'mm}{'.$image.'}';
4483: $currentstring .= "{$image";
4484: $closure = '}';
4485: }
4486: return ($currentstring, $closure);
4487: }
4488:
4489:
4490: sub is_inside_of {
4491: my ($tagstack, $tag) = @_;
4492: my @stack = @$tagstack;
4493: for (my $i = ($#stack - 1); $i >= 0; $i--) {
4494: if ($stack[$i] eq $tag) {
4495: return 1;
4496: }
4497: }
4498: return 0;
4499: }
4500:
4501:
4502: #
4503: # This sub provides the typical LaTeX prefix matter for tex output:
4504: #
4505: sub latex_header {
4506: my ($mode) = @_;
4507: my $currentstring = '';
4508:
4509: $currentstring .=
4510: "\n% &Apache::lonxml::londefdef \n" .
4511: '\documentclass[letterpaper,twoside]{article}\raggedbottom';
4512: if (($env{'form.latex_type'}=~'batchmode') ||
4513: (!$env{'request.role.adv'}) ||
4514: ($mode eq 'batchmode')) {$currentstring .='\batchmode';}
4515: $currentstring .= '\newcommand{\keephidden}[1]{}'.
4516: '\renewcommand{\deg}{$^{\circ}$}'.
4517: '\usepackage{multirow}'.
4518: '\usepackage{longtable}'.
4519: '\usepackage{textcomp}'.
4520: '\usepackage{makeidx}'.
4521: '\usepackage[dvips]{graphicx}'.
4522: '\usepackage{wrapfig}'.
4523: '\usepackage{picins}'.
4524: '\usepackage[T1]{fontenc}'."\n".
4525: '\usepackage{lmodern}'."\n".
4526: '\usepackage[postscript]{ucs}'."\n".
4527: '\usepackage[utf8x]{inputenc}'."\n".
4528: '\usepackage{pifont}' ."\n".
4529: '\usepackage{latexsym}'."\n".
4530: '\usepackage{epsfig}'.
4531: "\\usepackage{xtab}\n".
4532: "\\usepackage{tabularx}\n".
4533: "\\usepackage{booktabs}\n".
4534: "\\usepackage{array}\n".
4535: "\\usepackage{colortbl}\n".
4536: "\\usepackage{xcolor}\n".
4537: '\usepackage{calc}'.
4538: '\usepackage{amsmath}'.
4539: '\usepackage{soul}'.
4540: '\usepackage{amssymb}'.
4541: '\usepackage{amsfonts}'.
4542: '\usepackage{amsthm}'.
4543: '\usepackage{amscd}'
4544: .'\usepackage{picins}\usepackage{calc}'."\n". # From lonprintout.pm
4545: '\usepackage[T1]{fontenc}'."\n".
4546: '\usepackage{lmodern}'."\n".
4547: '\usepackage[postscript]{ucs}'."\n".
4548: '\usepackage[utf8x]{inputenc}'."\n".
4549: '\usepackage{pifont}' . "\n";
4550:
4551: if($env{'form.pdfFormFields'} eq 'yes') {
4552: $currentstring .= '\usepackage{hyperref}'.
4553: '\usepackage{eforms}'.
4554: '\usepackage{tabularx}';
4555: }
4556:
4557: $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}}'.
4558: '\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}}';
4559: $currentstring .= '\begin{document}';
4560:
4561: return $currentstring;
4562:
4563: }
4564:
4565: =pod
4566:
4567: =head1 NAME
4568:
4569: Apache::londefdef.pm
4570:
4571: =head1 SYNOPSIS
4572:
4573: Tags Default Definition Module
4574:
4575: This is part of the LearningOnline Network with CAPA project
4576: described at http://www.lon-capa.org.
4577:
4578:
4579: =head1 NOTABLE SUBROUTINES
4580:
4581: =over
4582:
4583: =item start_hideweboutput()
4584:
4585: =item end_hideweboutput()
4586:
4587: =item image_replication()
4588:
4589: =item resize_image()
4590:
4591: Get correct sizing parameter for an image given
4592: it's initial ht. and wid. This allows sizing of
4593: images that are generated on-the-fly (e.g. gnuplot)
4594: as well as serving as a utility for image_size.
4595:
4596: Parameter:
4597: height_param
4598: width_param - Initial picture dimensions.
4599: scaling - A scale factor.
4600: parstack, - the current stack of tag attributes
4601: from the xml parser
4602: safeeval, - pointer to the safespace
4603: depth, - from what level in the stack to look for attributes
4604: (assumes -1 if unspecified)
4605: cis - look for attrubutes case insensitively
4606: (assumes false)
4607:
4608: Returns:
4609: height, width - new dimensions.
4610:
4611: =item image_size()
4612:
4613: =item image_width()
4614:
4615: =item image_height()
4616:
4617: =item get_eps_image()
4618:
4619: =item eps_generation()
4620:
4621: =item file_path()
4622:
4623: =item recalc()
4624:
4625: Converts a measurement in to mm from any of
4626: the other valid LaTeX units of measure.
4627: If the units of measure are missing from the
4628: parameter, it is assumed to be in and returned
4629: with mm units of measure
4630:
4631: =item LATEX_length()
4632:
4633: =item align_latex_image()
4634:
4635: Wrap image 'stuff' inside of the LaTeX required to implement
4636: alignment:
4637: align_tex_image(align, latex_rendering, image)
4638: Where:
4639: align - The HTML alignment specification.
4640: latex_rendering - rendering hint for latex.
4641: image - The LaTeX needed to insert the image itsef.
4642: width,height - dimensions of the image.
4643: Returns:
4644: The 1/2 wrapped image and the stuff required to close the
4645: wrappage. This allows e.g. randomlabel to insert more stuff
4646: into the closure.
4647:
4648:
4649: =item is_inside_of($tagstack, $tag)
4650: This sub returns true if the current state of Xml processing is inside of the tag.
4651: Parameters:
4652: tagstack - The tagstack from the parser.
4653: tag - The tag (without the <>'s.).
4654: Sample usage:
4655: if (is_inside_of($tagstack "table")) {
4656: I'm in a table....
4657: }
4658:
4659:
4660:
4661: =back
4662:
4663: =cut
4664:
4665:
4666: 1;
4667: __END__
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