Annotation of loncom/xml/londefdef.pm, revision 1.232
1.1 sakharuk 1: # The LearningOnline Network with CAPA
2: # Tags Default Definition Module
3: #
1.232 ! sakharuk 4: # $Id: londefdef.pm,v 1.231 2004/07/20 15:05:32 sakharuk Exp $
1.41 sakharuk 5: #
1.34 www 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/
1.156 sakharuk 28: ## Copyright for TtHfunc and TtMfunc by Ian Hutchinson.
1.34 www 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: #
1.1 sakharuk 40: # last modified 06/26/00 by Alexander Sakharuk
1.28 www 41: # 11/6,11/30,02/01/01,5/4 Gerd Kortemeyer
1.41 sakharuk 42: # 01/18 Alex Sakharuk
1.1 sakharuk 43:
1.2 albertel 44: package Apache::londefdef;
1.1 sakharuk 45:
1.118 www 46: use Apache::lonnet();
1.1 sakharuk 47: use strict;
1.124 sakharuk 48: use Apache::lonxml;
1.57 sakharuk 49: use Apache::File();
1.70 sakharuk 50: use Image::Magick;
1.118 www 51: use Apache::lonmenu();
52: use Apache::lonmeta();
1.187 albertel 53: use Apache::Constants qw(:common);
1.54 sakharuk 54:
1.160 sakharuk 55:
1.38 harris41 56: BEGIN {
1.15 sakharuk 57:
1.135 sakharuk 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','sub','sup','table','tbody','td','textarea','tfoot','th','thead','title','tr','tt','tthoption','u','ul','var','wbr','hideweboutput'));
1.15 sakharuk 59:
1.188 albertel 60: }
61:
62: sub initialize_londefdef {
63: $Apache::londefdef::TD_redirection=0;
64: @Apache::londefdef::table = ();
65: $Apache::londefdef::select=0;
66: @Apache::londefdef::description=();
67: $Apache::londefdef::DD_redirection=0;
68: $Apache::londefdef::DT_redirection=0;
1.3 sakharuk 69: }
1.1 sakharuk 70:
1.35 sakharuk 71: #======================= TAG SUBROUTINES =====================
1.8 sakharuk 72: #-- <output>
1.21 albertel 73: sub start_output {
1.122 albertel 74: my ($target) = @_;
75: if ($target eq 'meta') { $Apache::lonxml::metamode--; }
76: return '';
1.21 albertel 77: }
78: sub end_output {
1.122 albertel 79: my ($target) = @_;
80: if ($target eq 'meta') { $Apache::lonxml::metamode++; }
81: return '';
1.21 albertel 82: }
1.4 sakharuk 83: #-- <m> tag
1.33 albertel 84: sub start_m {
1.190 albertel 85: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 86: my $currentstring = '';
1.193 albertel 87: my $inside = &Apache::lonxml::get_all_text_unbalanced("/m",$parser);
1.191 albertel 88: if ($target eq 'web' || $target eq 'analyze') {
1.122 albertel 89: $inside ='\\documentstyle{article}'.$inside;
90: &Apache::lonxml::debug("M is starting with:$inside:");
91: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
92: if ($eval eq 'on') {
93: $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
94: #&Apache::lonxml::debug("M is evaulated to:$inside:");
95: }
96: $currentstring = &Apache::lontexconvert::converted(\$inside);
97: if ($Apache::lontexconvert::errorstring) {
98: &Apache::lonxml::warning("tth error: ".
99: $Apache::lontexconvert::errorstring);
100: $Apache::lontexconvert::errorstring='';
101: }
102: #&Apache::lonxml::debug("M is ends with:$currentstring:");
1.178 albertel 103: $Apache::lonxml::post_evaluate=0;
1.122 albertel 104: } elsif ($target eq 'tex') {
1.190 albertel 105: $currentstring = $inside;
1.178 albertel 106: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
107: if ($eval eq 'on') {
108: $currentstring=&Apache::run::evaluate($currentstring,$safeeval,$$parstack[-1]);
109: }
1.122 albertel 110: if ($currentstring=~/^(\s*\\\\\s*)*$/) {$currentstring = ' \vskip 0 mm ';}
1.178 albertel 111: $Apache::lonxml::post_evaluate=0;
1.122 albertel 112: }
113: return $currentstring;
1.33 albertel 114: }
1.122 albertel 115:
1.33 albertel 116: sub end_m {
1.122 albertel 117: my ($target,$token) = @_;
118: my $currentstring = '';
1.204 albertel 119: if ($target eq 'tex') {
1.122 albertel 120: $currentstring = "";
121: }
122: return $currentstring;
1.33 albertel 123: }
1.110 albertel 124:
125: sub start_tthoption {
1.122 albertel 126: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
127: my $result;
128: if ($target eq 'web') {
129: my $inside = &Apache::lonxml::get_all_text("/tthoption",$parser);
130: $inside=~s/^\s*//;
131: if ($ENV{'browser.mathml'}) {
132: &tth::ttmoptions($inside);
133: } else {
134: &tth::tthoptions($inside);
135: }
136: }
137: return $result;
1.110 albertel 138: }
139:
140: sub end_tthoption {
1.122 albertel 141: my ($target,$token) = @_;
142: my $result;
143: return $result;
1.110 albertel 144: }
145:
1.181 sakharuk 146: #-- <html> tag (end tag optional)
1.100 albertel 147: sub start_html {
148: my ($target,$token) = @_;
149: my $currentstring = '';
1.194 albertel 150: my $options=$ENV{'course.'.$ENV{'request.course.id'}.'.tthoptions'};
1.196 albertel 151: &Apache::lontexconvert::init_tth();
1.186 albertel 152: if ($target eq 'web' || $target eq 'edit') {
1.100 albertel 153: $currentstring = &Apache::lonxml::xmlbegin().
154: &Apache::lonxml::fontsettings();
155: } elsif ($target eq 'tex') {
156: @Apache::londefdef::table = ();
1.232 ! sakharuk 157: $currentstring .= '\documentclass[letterpaper]{book}';
1.153 sakharuk 158: if ($ENV{'form.latex_type'}=~'batchmode') {$currentstring .='\batchmode';}
1.217 sakharuk 159: $currentstring .= '\newcommand{\keephidden}[1]{}'.
160: '\renewcommand{\deg}{$^{\circ}$}'.
161: '\usepackage{longtable}'.
162: '\usepackage{textcomp}'.
163: '\usepackage{makeidx}'.
164: '\usepackage[dvips]{graphicx}'.
165: '\usepackage{epsfig}'.
166: '\usepackage{calc}'.
167: '\usepackage{amsmath}'.
168: '\usepackage{amssymb}'.
169: '\usepackage{amsfonts}'.
170: '\usepackage{amsthm}'.
171: '\usepackage{amscd}'.
172: '\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}}'.
173: '\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}}';
1.100 albertel 174: }
175: return $currentstring;
176: }
1.122 albertel 177:
178: sub end_html {
1.232 ! sakharuk 179: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 180: my $currentstring = '';
181: if ($target eq 'web') {
1.232 ! sakharuk 182: $currentstring = &Apache::lonxml::xmlend($target,$parser);
1.122 albertel 183: }
184: return $currentstring;
185: }
186:
1.181 sakharuk 187: #-- <head> tag (end tag optional)
1.122 albertel 188: sub start_head {
189: my ($target,$token) = @_;
190: my $currentstring = '';
191: if ($target eq 'web') {
192: $currentstring = $token->[4];
193: }
194: return $currentstring;
195: }
196:
197: sub end_head {
198: my ($target,$token) = @_;
199: my $currentstring = '';
1.180 albertel 200: if ($target eq 'web' && $ENV{'request.state'} eq 'published') {
1.122 albertel 201: $currentstring = &Apache::lonmenu::registerurl(undef,$target).
202: $token->[2];
203: }
204: return $currentstring;
205: }
206:
1.181 sakharuk 207: #-- <map> tag (end tag required)
1.122 albertel 208: sub start_map {
209: my ($target,$token) = @_;
210: my $currentstring = '';
211: if ($target eq 'web') {
212: $currentstring = $token->[4];
213: }
214: return $currentstring;
215: }
216:
217: sub end_map {
218: my ($target,$token) = @_;
219: my $currentstring = '';
220: if ($target eq 'web') {
221: $currentstring = $token->[2];
222: }
223: return $currentstring;
224: }
225:
1.181 sakharuk 226: #-- <select> tag (end tag required)
1.122 albertel 227: sub start_select {
228: my ($target,$token) = @_;
229: my $currentstring = '';
230: if ($target eq 'web') {
231: $currentstring = $token->[4];
1.181 sakharuk 232: } elsif ($target eq 'tex') {
233: $Apache::londefdef::select=0;
234: }
1.122 albertel 235: return $currentstring;
236: }
237:
238: sub end_select {
239: my ($target,$token) = @_;
240: my $currentstring = '';
241: if ($target eq 'web') {
242: $currentstring = $token->[2];
243: }
244: return $currentstring;
245: }
246:
1.181 sakharuk 247: #-- <option> tag (end tag optional)
1.122 albertel 248: sub start_option {
1.181 sakharuk 249: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 250: my $currentstring = '';
251: if ($target eq 'web') {
252: $currentstring = $token->[4];
1.181 sakharuk 253: } elsif ($target eq 'tex') {
254: $Apache::londefdef::select++;
255: if ($Apache::londefdef::select == 1) {
256: $currentstring='\noindent\fbox{'.&Apache::lonxml::get_param('value',$parstack,$safeeval).'}\keephidden{';
257: } else {
258: $currentstring='\keephidden{';
259: }
260: }
1.122 albertel 261: return $currentstring;
262: }
263:
264: sub end_option {
265: my ($target,$token) = @_;
266: my $currentstring = '';
267: if ($target eq 'web') {
268: $currentstring = $token->[2];
1.181 sakharuk 269: } elsif ($target eq 'tex') {
270: $currentstring='}';
271: }
1.122 albertel 272: return $currentstring;
273: }
274:
1.181 sakharuk 275: #-- <input> tag (end tag forbidden)
1.122 albertel 276: sub start_input {
277: my ($target,$token) = @_;
278: my $currentstring = '';
279: if ($target eq 'web') {
280: $currentstring = $token->[4];
281: }
282: return $currentstring;
283: }
284:
285: sub end_input {
286: my ($target,$token) = @_;
287: my $currentstring = '';
288: if ($target eq 'web') {
289: $currentstring = $token->[2];
290: }
291: return $currentstring;
292: }
293:
1.181 sakharuk 294: #-- <textarea> tag (end tag required)
1.122 albertel 295: sub start_textarea {
296: my ($target,$token) = @_;
297: my $currentstring = '';
298: if ($target eq 'web') {
299: $currentstring = $token->[4];
300: }
301: return $currentstring;
302: }
303:
304: sub end_textarea {
305: my ($target,$token) = @_;
306: my $currentstring = '';
307: if ($target eq 'web') {
308: $currentstring = $token->[2];
309: }
310: return $currentstring;
311: }
312:
1.181 sakharuk 313: #-- <form> tag (end tag required)
1.122 albertel 314: sub start_form {
315: my ($target,$token) = @_;
316: my $currentstring = '';
317: if ($target eq 'web') {
318: $currentstring = $token->[4];
319: }
320: return $currentstring;
321: }
322:
323: sub end_form {
324: my ($target,$token) = @_;
325: my $currentstring = '';
326: if ($target eq 'web') {
327: $currentstring = $token->[2];
328: }
329: return $currentstring;
330: }
331:
1.181 sakharuk 332: #-- <title> tag (end tag required)
1.122 albertel 333: sub start_title {
334: my ($target,$token) = @_;
335: my $currentstring = '';
336: if ($target eq 'web') {
337: $currentstring = $token->[4];
338: } elsif ($target eq 'tex') {
1.166 sakharuk 339: $currentstring .= '\keephidden{Title of the document: '
1.122 albertel 340: }
341: if ($target eq 'meta') {
342: $currentstring='<title>';
1.185 albertel 343: &start_output($target);
1.122 albertel 344: }
345: return $currentstring;
346: }
347:
348: sub end_title {
349: my ($target,$token) = @_;
350: my $currentstring = '';
351: if ($target eq 'web') {
352: $currentstring = $token->[2];
353: } elsif ($target eq 'tex') {
354: $currentstring .= '}';
355: }
356: if ($target eq 'meta') {
1.185 albertel 357: &end_output($target);
1.122 albertel 358: $currentstring='</title>';
359: }
360: return $currentstring;
361: }
362:
1.181 sakharuk 363: #-- <meta> tag (end tag forbidden)
1.122 albertel 364: sub start_meta {
365: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
366: my $currentstring = '';
367: if ($target eq 'web') {
368: my $args='';
369: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
370: if ($args eq '') {
371: &Apache::lonxml::get_all_text("/meta",$parser);
372: } else {
373: $currentstring = $token->[4];
1.1 sakharuk 374: }
1.135 sakharuk 375: } elsif ($target eq 'meta') {
1.122 albertel 376: unless (&Apache::lonxml::get_param
377: ('http-equiv',$parstack,$safeeval,undef,1)) {
378: my $name=$token->[2]->{'name'};
379: $name=~tr/A-Z/a-z/;
380: $name=~s/\s/\_/gs;
381: $name=~s/\W//gs;
382: if ($name) {
1.154 www 383: $currentstring='<'.$name;
384: my $display=&Apache::lonxml::get_param
385: ('display',$parstack,$safeeval,undef,1);
386: if ($display) {
387: $display=~s/\"/\'/g;
388: $currentstring.=' display="'.$display.'"';
389: }
390: $currentstring.='>'.
1.122 albertel 391: &Apache::lonxml::get_param
392: ('content',$parstack,$safeeval,undef,1).
1.135 sakharuk 393: '</'.$name.'>';
1.1 sakharuk 394: }
1.154 www 395: my $display=&Apache::lonxml::get_param
396: ('display',$parstack,$safeeval,undef,1);
397: if ($display) {
1.204 albertel 398: $display=&HTML::Entities::encode($display,'<>&"');
1.154 www 399: $currentstring.='<'.$name.'.display>'.$display.
400: '</'.$name.'.display>';
401: }
1.1 sakharuk 402: }
1.135 sakharuk 403: } elsif ($target eq 'tex') {
1.151 sakharuk 404: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
405: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
406: if ((not defined $content) && (not defined $name)) {
407: &Apache::lonxml::startredirection();
408: }
1.122 albertel 409: }
410: return $currentstring;
411: }
412:
413: sub end_meta {
1.165 albertel 414: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 415: my $currentstring = '';
416: if ($target eq 'web') {
417: my $args='';
418: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
419: if ($args ne '') {
1.121 www 420: $currentstring = $token->[4];
1.122 albertel 421: }
1.135 sakharuk 422: } elsif ($target eq 'tex') {
1.165 albertel 423: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
424: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
1.164 albertel 425: if ((not defined $content) && (not defined $name)) {
1.169 albertel 426: &Apache::lonxml::endredirection();
1.164 albertel 427: }
1.135 sakharuk 428: }
1.122 albertel 429: return $currentstring;
430: }
431:
1.121 www 432: # accessrule
1.122 albertel 433: sub start_accessrule {
434: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
435: my $currentstring = '';
436: my $eff=&Apache::lonxml::get_param
437: ('effect',$parstack,$safeeval,undef,1);
438: my $realm=&Apache::lonxml::get_param
439: ('realm',$parstack,$safeeval,undef,1);
1.123 www 440: my $role=&Apache::lonxml::get_param
441: ('role',$parstack,$safeeval,undef,1);
442: $realm=~s/\s+//g;
443: $realm=~s/\//\_/g;
444: $realm=~s/^\_//;
445: $realm=~s/\W/\;/g;
446: $role=~s/\s+//g;
447: $role=~s/\//\_/g;
448: $role=~s/\W/\;/g;
1.122 albertel 449: if ($target eq 'web') {
450: my $args='';
451: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
452: if ($args eq '') {
453: &Apache::lonxml::get_all_text("/accessrule",$parser);
454: } else {
455: $currentstring = $token->[4];
456: }
457: }
458: if ($target eq 'meta') {
1.123 www 459: $currentstring='<rule>'.$eff.':'.$realm.':'.$role.'</rule>';
1.122 albertel 460: }
461: return $currentstring;
462: }
463:
464: sub end_accessrule {
465: my ($target,$token,$tagstack,$parstack,$parser) = @_;
466: my $currentstring = '';
467: if ($target eq 'web') {
468: my $args='';
469: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
470: if ($args ne '') {
471: $currentstring = $token->[4];
472: }
473: }
474: return $currentstring;
475: }
476:
1.181 sakharuk 477: #-- <body> tag (end tag required)
1.122 albertel 478: sub start_body {
479: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
480: my $currentstring = '';
481: if ($target eq 'web') {
1.170 albertel 482: if ($Apache::lonhomework::parsing_a_problem) {
483: &Apache::lonxml::warning("<body> tag found inside of <problem> tag this can cause problems.");
484: return '';
485: }
1.180 albertel 486: if (!$Apache::lonxml::registered &&
487: $ENV{'request.state'} eq 'published') {
1.122 albertel 488: $currentstring.='<head>'.
489: &Apache::lonmenu::registerurl(undef,$target).'</head>';
490: }
1.155 www 491: # Accessibility
492: if ($ENV{'browser.imagesuppress'} eq 'on') {
493: delete($token->[2]->{'background'});
494: }
495: if ($ENV{'browser.fontenhance'} eq 'on') {
496: my $style='';
497: foreach my $key (keys(%{$token->[2]})) {
498: if ($key =~ /^style$/i) {
499: $style.=$token->[2]->{$key}.';';
500: delete($token->[2]->{$key});
501: }
502: }
503: $token->[2]->{'style'}=$style.'; font-size: x-large;';
504: }
505: if ($ENV{'browser.blackwhite'} eq 'on') {
506: delete($token->[2]->{'font'});
507: delete($token->[2]->{'link'});
508: delete($token->[2]->{'alink'});
509: delete($token->[2]->{'vlink'});
510: delete($token->[2]->{'bgcolor'});
511: delete($token->[2]->{'background'});
512: }
513: # Overload loads
1.122 albertel 514: my $onLoad='';
515: foreach my $key (keys(%{$token->[2]})) {
516: if ($key =~ /^onload$/i) {
517: $onLoad.=$token->[2]->{$key}.';';
518: delete($token->[2]->{$key});
1.121 www 519: }
1.122 albertel 520: }
521: $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad;
522: my $onUnload='';
523: foreach my $key (keys(%{$token->[2]})) {
524: if ($key =~ /^onunload$/i) {
525: $onUnload.=$token->[2]->{$key}.';';
526: delete($token->[2]->{$key});
1.121 www 527: }
528: }
1.122 albertel 529: $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().
530: ';'.$onUnload;
531:
532: $currentstring .= '<'.$token->[1];
533: foreach (keys %{$token->[2]}) {
534: $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
535: }
536: $currentstring.='>';
537: if ($ENV{'request.state'} ne 'published') {
538: $currentstring.=(<<EDITBUTTON);
1.40 albertel 539: <form method="post">
1.200 matthew 540: <input type="submit" name="editmode" accesskey="e" value="Edit" />
1.40 albertel 541: </form>
542: EDITBUTTON
1.122 albertel 543: } else {
544: $currentstring.=&Apache::lonmenu::menubuttons(undef,$target,1);
1.1 sakharuk 545: }
1.201 albertel 546: $currentstring.=&Apache::lonxml::message_location();
1.122 albertel 547: } elsif ($target eq 'tex') {
548: $currentstring = '\begin{document}';
549: }
550: return $currentstring;
551: }
552:
553: sub end_body {
554: my ($target,$token) = @_;
555: my $currentstring = '';
556: if ($target eq 'web') {
557: $currentstring = $token->[2];
558: } elsif ($target eq 'tex') {
1.171 sakharuk 559: $currentstring = '\strut\newline\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\newline\noindent \end{document}';
1.122 albertel 560: }
561: return $currentstring;
562: }
563:
1.181 sakharuk 564: #-- <center> tag (end tag required)
1.122 albertel 565: sub start_center {
566: my ($target,$token) = @_;
567: my $currentstring = '';
568: if ($target eq 'web') {
569: $currentstring = $token->[4];
570: } elsif ($target eq 'tex') {
571: $currentstring = '\begin{center}';
1.144 sakharuk 572: }
1.122 albertel 573: return $currentstring;
574: }
575:
576: sub end_center {
577: my ($target,$token) = @_;
578: my $currentstring = '';
579: if ($target eq 'web') {
580: $currentstring = $token->[2];
581: } elsif ($target eq 'tex') {
582: $currentstring = '\end{center}';
1.144 sakharuk 583: }
1.122 albertel 584: return $currentstring;
585: }
586:
1.181 sakharuk 587: #-- <b> tag (end tag required)
1.122 albertel 588: sub start_b {
589: my ($target,$token) = @_;
590: my $currentstring = '';
591: if ($target eq 'web') {
592: $currentstring = $token->[4];
593: } elsif ($target eq 'tex') {
594: $currentstring = '\textbf{';
595: }
596: return $currentstring;
597: }
598:
599: sub end_b {
600: my ($target,$token) = @_;
601: my $currentstring = '';
602: if ($target eq 'web') {
603: $currentstring = $token->[2];
604: } elsif ($target eq 'tex') {
605: $currentstring = '}';
606: }
607: return $currentstring;
608: }
1.35 sakharuk 609:
1.181 sakharuk 610: #-- <strong> tag (end tag required)
1.122 albertel 611: sub start_strong {
612: my ($target,$token) = @_;
613: my $currentstring = '';
614: if ($target eq 'web') {
615: $currentstring = $token->[4];
616: } elsif ($target eq 'tex') {
617: $currentstring = '\textbf{';
618: }
619: return $currentstring;
620: }
621:
622: sub end_strong {
623: my ($target,$token) = @_;
624: my $currentstring = '';
1.182 sakharuk 625: if ($target eq 'web') {
1.122 albertel 626: $currentstring = $token->[2];
627: } elsif ($target eq 'tex') {
628: $currentstring = '}';
1.144 sakharuk 629: }
1.122 albertel 630: return $currentstring;
631: }
632:
1.181 sakharuk 633: #-- <h1> tag (end tag required)
1.122 albertel 634: sub start_h1 {
1.125 sakharuk 635: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 636: my $currentstring = '';
637: if ($target eq 'web') {
638: $currentstring .= $token->[4];
639: } elsif ($target eq 'tex') {
1.125 sakharuk 640: my $pre;
1.199 albertel 641: my $align=lc(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1));
1.212 sakharuk 642: if ($align eq 'center') {
1.125 sakharuk 643: $pre='\begin{center}';
644: } elsif ($align eq 'left') {
645: $pre='\rlap{';
646: } elsif ($align eq 'right') {
647: $pre=' \hfill \llap{';
648: }
649: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
650: if (not defined $TeXsize) {$TeXsize="large";}
651: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 652: } elsif ($target eq 'meta') {
653: $currentstring='<subject>';
1.185 albertel 654: &start_output($target);
1.122 albertel 655: }
656: return $currentstring;
657: }
658:
659: sub end_h1 {
1.125 sakharuk 660: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 661: my $currentstring = '';
662: if ($target eq 'web') {
663: $currentstring .= $token->[2];
664: } elsif ($target eq 'tex') {
1.212 sakharuk 665: my $post='\vskip 0 mm ';
1.125 sakharuk 666: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 667: if ($align eq 'center') {
1.125 sakharuk 668: $post='\end{center}';
669: } elsif ($align eq 'left') {
670: $post='} \hfill'.'\vskip 0 mm ';
671: } elsif ($align eq 'right') {
672: $post='}'.'\vskip 0 mm ';
673: }
674: $currentstring .= '}}'.$post;
1.122 albertel 675: } elsif ($target eq 'meta') {
1.185 albertel 676: &end_output($target);
1.122 albertel 677: $currentstring='</subject>';
678: }
679: return $currentstring;
680: }
681:
1.35 sakharuk 682: #-- <h2> tag
1.122 albertel 683: sub start_h2 {
1.125 sakharuk 684: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 685: my $currentstring = '';
686: if ($target eq 'web') {
687: $currentstring .= $token->[4];
688: } elsif ($target eq 'tex') {
1.125 sakharuk 689: my $pre;
690: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 691: if ($align eq 'center') {
1.125 sakharuk 692: $pre='\begin{center}';
693: } elsif ($align eq 'left') {
694: $pre='\rlap{';
695: } elsif ($align eq 'right') {
696: $pre=' \hfill \llap{';
697: }
698: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
699: if (not defined $TeXsize) {$TeXsize="large";}
700: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 701: }
702: return $currentstring;
703: }
704:
705: sub end_h2 {
1.125 sakharuk 706: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 707: my $currentstring = '';
708: if ($target eq 'web') {
709: $currentstring .= $token->[2];
710: } elsif ($target eq 'tex') {
1.212 sakharuk 711: my $post='\vskip 0 mm ';
1.125 sakharuk 712: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 713: if ($align eq 'center') {
1.125 sakharuk 714: $post='\end{center}';
715: } elsif ($align eq 'left') {
716: $post='} \hfill'.'\vskip 0 mm ';
717: } elsif ($align eq 'right') {
718: $post='}'.'\vskip 0 mm ';
719: }
720: $currentstring .= '}}'.$post;
1.122 albertel 721: }
722: return $currentstring;
723: }
724:
1.35 sakharuk 725: #-- <h3> tag
1.122 albertel 726: sub start_h3 {
1.125 sakharuk 727: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 728: my $currentstring = '';
729: if ($target eq 'web') {
730: $currentstring .= $token->[4];
731: } elsif ($target eq 'tex') {
1.125 sakharuk 732: my $pre;
733: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 734: if ($align eq 'center') {
1.125 sakharuk 735: $pre='\begin{center}';
736: } elsif ($align eq 'left') {
737: $pre='\rlap{';
738: } elsif ($align eq 'right') {
739: $pre=' \hfill \llap{';
740: }
741: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
742: if (not defined $TeXsize) {$TeXsize="large";}
743: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 744: }
745: return $currentstring;
746: }
747:
748: sub end_h3 {
1.125 sakharuk 749: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 750: my $currentstring = '';
751: if ($target eq 'web') {
752: $currentstring .= $token->[2];
753: } elsif ($target eq 'tex') {
1.212 sakharuk 754: my $post='\vskip 0 mm ';
1.125 sakharuk 755: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 756: if ($align eq 'center') {
1.125 sakharuk 757: $post='\end{center}';
758: } elsif ($align eq 'left') {
759: $post='} \hfill'.'\vskip 0 mm ';
760: } elsif ($align eq 'right') {
761: $post='}'.'\vskip 0 mm ';
762: }
763: $currentstring .= '}}'.$post;
1.122 albertel 764: }
765: return $currentstring;
766: }
767:
1.35 sakharuk 768: #-- <h4> tag
1.122 albertel 769: sub start_h4 {
1.125 sakharuk 770: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 771: my $currentstring = '';
772: if ($target eq 'web') {
773: $currentstring .= $token->[4];
774: } elsif ($target eq 'tex') {
1.125 sakharuk 775: my $pre;
776: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 777: if ($align eq 'center') {
1.125 sakharuk 778: $pre='\begin{center}';
779: } elsif ($align eq 'left') {
780: $pre='\rlap{';
781: } elsif ($align eq 'right') {
782: $pre=' \hfill \llap{';
783: }
784: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
785: if (not defined $TeXsize) {$TeXsize="large";}
786: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 787: }
788: return $currentstring;
789: }
790:
791: sub end_h4 {
1.125 sakharuk 792: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 793: my $currentstring = '';
794: if ($target eq 'web') {
795: $currentstring .= $token->[2];
796: } elsif ($target eq 'tex') {
1.212 sakharuk 797: my $post='\vskip 0 mm ';
1.125 sakharuk 798: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 799: if ($align eq 'center') {
1.125 sakharuk 800: $post='\end{center}';
801: } elsif ($align eq 'left') {
802: $post='} \hfill'.'\vskip 0 mm ';
803: } elsif ($align eq 'right') {
804: $post='}'.'\vskip 0 mm ';
805: }
806: $currentstring .= '}}'.$post;
1.122 albertel 807: }
808: return $currentstring;
809: }
810:
1.35 sakharuk 811: #-- <h5> tag
1.122 albertel 812: sub start_h5 {
1.125 sakharuk 813: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 814: my $currentstring = '';
815: if ($target eq 'web') {
816: $currentstring .= $token->[4];
817: } elsif ($target eq 'tex') {
1.125 sakharuk 818: my $pre;
819: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 820: if ($align eq 'center') {
1.125 sakharuk 821: $pre='\begin{center}';
822: } elsif ($align eq 'left') {
823: $pre='\rlap{';
824: } elsif ($align eq 'right') {
825: $pre=' \hfill \llap{';
826: }
827: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
828: if (not defined $TeXsize) {$TeXsize="large";}
829: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 830: }
831: return $currentstring;
832: }
833:
834: sub end_h5 {
1.125 sakharuk 835: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 836: my $currentstring = '';
837: if ($target eq 'web') {
838: $currentstring .= $token->[2];
839: } elsif ($target eq 'tex') {
1.212 sakharuk 840: my $post='\vskip 0 mm ';
1.125 sakharuk 841: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 842: if ($align eq 'center') {
1.125 sakharuk 843: $post='\end{center}';
844: } elsif ($align eq 'left') {
845: $post='} \hfill'.'\vskip 0 mm ';
846: } elsif ($align eq 'right') {
847: $post='}'.'\vskip 0 mm ';
848: }
849: $currentstring .= '}}'.$post;
1.122 albertel 850: }
851: return $currentstring;
852: }
853:
1.35 sakharuk 854: #-- <h6> tag
1.122 albertel 855: sub start_h6 {
1.125 sakharuk 856: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 857: my $currentstring = '';
858: if ($target eq 'web') {
859: $currentstring .= $token->[4];
860: } elsif ($target eq 'tex') {
1.125 sakharuk 861: my $pre;
862: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 863: if ($align eq 'center') {
1.125 sakharuk 864: $pre='\begin{center}';
865: } elsif ($align eq 'left') {
866: $pre='\rlap{';
867: } elsif ($align eq 'right') {
868: $pre=' \hfill \llap{';
869: }
870: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
871: if (not defined $TeXsize) {$TeXsize="large";}
872: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 873: }
874: return $currentstring;
875: }
876:
877: sub end_h6 {
1.125 sakharuk 878: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 879: my $currentstring = '';
880: if ($target eq 'web') {
881: $currentstring .= $token->[2];
882: } elsif ($target eq 'tex') {
1.212 sakharuk 883: my $post='\vskip 0 mm ';
1.125 sakharuk 884: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 885: if ($align eq 'center') {
1.125 sakharuk 886: $post='\end{center}';
887: } elsif ($align eq 'left') {
888: $post='} \hfill'.'\vskip 0 mm ';
889: } elsif ($align eq 'right') {
890: $post='}'.'\vskip 0 mm ';
891: }
892: $currentstring .= '}}'.$post;
1.122 albertel 893: }
894: return $currentstring;
895: }
896:
1.181 sakharuk 897: #--- <cite> tag (end tag required)
1.122 albertel 898: sub start_cite {
899: my ($target,$token) = @_;
900: my $currentstring = '';
901: if ($target eq 'web') {
902: $currentstring .= $token->[4];
903: } elsif ($target eq 'tex') {
1.179 sakharuk 904: $currentstring .= '\textit{';
1.144 sakharuk 905: }
1.122 albertel 906: return $currentstring;
907: }
908:
909: sub end_cite {
910: my ($target,$token) = @_;
911: my $currentstring = '';
912: if ($target eq 'web') {
913: $currentstring .= $token->[2];
914: } elsif ($target eq 'tex') {
1.179 sakharuk 915: $currentstring .= '}';
1.144 sakharuk 916: }
1.122 albertel 917: return $currentstring;
918: }
919:
1.181 sakharuk 920: #-- <i> tag (end tag required)
1.122 albertel 921: sub start_i {
922: my ($target,$token) = @_;
923: my $currentstring = '';
924: if ($target eq 'web') {
925: $currentstring .= $token->[4];
926: } elsif ($target eq 'tex') {
927: $currentstring .= '\textit{';
1.144 sakharuk 928: }
1.122 albertel 929: return $currentstring;
930: }
931:
932: sub end_i {
933: my ($target,$token) = @_;
934: my $currentstring = '';
935: if ($target eq 'web') {
936: $currentstring .= $token->[2];
937: } elsif ($target eq 'tex') {
938: $currentstring .= '}';
939: }
940: return $currentstring;
941: }
942:
1.181 sakharuk 943: #-- <address> tag (end tag required)
1.122 albertel 944: sub start_address {
945: my ($target,$token) = @_;
946: my $currentstring = '';
947: if ($target eq 'web') {
948: $currentstring .= $token->[4];
949: } elsif ($target eq 'tex') {
1.179 sakharuk 950: $currentstring .= '\textit{';
1.144 sakharuk 951: }
1.122 albertel 952: return $currentstring;
953: }
954:
955: sub end_address {
956: my ($target,$token) = @_;
957: my $currentstring = '';
958: if ($target eq 'web') {
959: $currentstring .= $token->[2];
960: } elsif ($target eq 'tex') {
1.179 sakharuk 961: $currentstring .= '}';
1.122 albertel 962: }
963: return $currentstring;
964: }
965:
1.181 sakharuk 966: #-- <dfn> tag (end tag required)
1.122 albertel 967: sub start_dfn {
968: my ($target,$token) = @_;
969: my $currentstring = '';
970: if ($target eq 'web') {
971: $currentstring .= $token->[4];
972: } elsif ($target eq 'tex') {
1.179 sakharuk 973: $currentstring .= '\textit{';
1.122 albertel 974: }
975: return $currentstring;
976: }
977:
978: sub end_dfn {
979: my ($target,$token) = @_;
980: my $currentstring = '';
981: if ($target eq 'web') {
982: $currentstring .= $token->[2];
983: } elsif ($target eq 'tex') {
1.179 sakharuk 984: $currentstring .= '}';
1.144 sakharuk 985: }
1.122 albertel 986: return $currentstring;
987: }
988:
1.181 sakharuk 989: #-- <tt> tag (end tag required)
1.122 albertel 990: sub start_tt {
991: my ($target,$token) = @_;
992: my $currentstring = '';
993: if ($target eq 'web') {
994: $currentstring .= $token->[4];
995: } elsif ($target eq 'tex') {
996: $currentstring .= '\texttt{';
1.144 sakharuk 997: }
1.122 albertel 998: return $currentstring;
999: }
1000:
1001: sub end_tt {
1002: my ($target,$token) = @_;
1003: my $currentstring = '';
1004: if ($target eq 'web') {
1005: $currentstring .= $token->[2];
1006: } elsif ($target eq 'tex') {
1007: $currentstring .= '}';
1008: }
1009: return $currentstring;
1010: }
1011:
1.181 sakharuk 1012: #-- <kbd> tag (end tag required)
1.122 albertel 1013: sub start_kbd {
1014: my ($target,$token) = @_;
1015: my $currentstring = '';
1016: if ($target eq 'web') {
1017: $currentstring .= $token->[4];
1018: } elsif ($target eq 'tex') {
1.179 sakharuk 1019: $currentstring .= '\texttt{';
1.144 sakharuk 1020: }
1.122 albertel 1021: return $currentstring;
1022: }
1023:
1024: sub end_kbd {
1025: my ($target,$token) = @_;
1026: my $currentstring = '';
1027: if ($target eq 'web') {
1028: $currentstring .= $token->[2];
1029: } elsif ($target eq 'tex') {
1.179 sakharuk 1030: $currentstring .= '}';
1.144 sakharuk 1031: }
1.122 albertel 1032: return $currentstring;
1033: }
1034:
1.181 sakharuk 1035: #-- <code> tag (end tag required)
1.122 albertel 1036: sub start_code {
1037: my ($target,$token) = @_;
1038: my $currentstring = '';
1039: if ($target eq 'web') {
1040: $currentstring .= $token->[4];
1041: } elsif ($target eq 'tex') {
1042: $currentstring .= '\texttt{';
1043: }
1044: return $currentstring;
1045: }
1046:
1047: sub end_code {
1048: my ($target,$token) = @_;
1049: my $currentstring = '';
1050: if ($target eq 'web') {
1051: $currentstring .= $token->[2];
1052: } elsif ($target eq 'tex') {
1053: $currentstring .= '}';
1054: }
1055: return $currentstring;
1056: }
1057:
1.181 sakharuk 1058: #-- <em> tag (end tag required)
1.122 albertel 1059: sub start_em {
1060: my ($target,$token) = @_;
1061: my $currentstring = '';
1062: if ($target eq 'web') {
1063: $currentstring .= $token->[4];
1064: } elsif ($target eq 'tex') {
1065: $currentstring .= '\emph{';
1.144 sakharuk 1066: }
1.122 albertel 1067: return $currentstring;
1068: }
1069:
1070: sub end_em {
1071: my ($target,$token) = @_;
1072: my $currentstring = '';
1073: if ($target eq 'web') {
1074: $currentstring .= $token->[2];
1075: } elsif ($target eq 'tex') {
1076: $currentstring .= '}';
1.144 sakharuk 1077: }
1.122 albertel 1078: return $currentstring;
1079: }
1080:
1.181 sakharuk 1081: #-- <q> tag (end tag required)
1.122 albertel 1082: sub start_q {
1083: my ($target,$token) = @_;
1084: my $currentstring = '';
1085: if ($target eq 'web') {
1086: $currentstring .= $token->[4];
1087: } elsif ($target eq 'tex') {
1.179 sakharuk 1088: $currentstring .= '\emph{';
1.122 albertel 1089: }
1090: return $currentstring;
1091: }
1092:
1093: sub end_q {
1094: my ($target,$token) = @_;
1095: my $currentstring = '';
1096: if ($target eq 'web') {
1097: $currentstring .= $token->[2];
1098: } elsif ($target eq 'tex') {
1.179 sakharuk 1099: $currentstring .= '}';
1.144 sakharuk 1100: }
1.122 albertel 1101: return $currentstring;
1102: }
1103:
1.181 sakharuk 1104: #-- <p> tag (end tag optional)
1.198 sakharuk 1105: #optional attribute - align="center|left|right"
1.122 albertel 1106: sub start_p {
1.157 sakharuk 1107: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1108: my $currentstring = '';
1109: if ($target eq 'web') {
1110: $currentstring .= $token->[4];
1111: } elsif ($target eq 'tex') {
1.198 sakharuk 1112: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1113: if ($align eq 'center') {
1114: $currentstring='\begin{center}\par';
1115: } elsif ($align eq 'right') {
1116: $currentstring='\makebox['.$ENV{'form.textwidth'}.']{\hfill\llap{';
1117: } elsif ($align eq 'left') {
1118: $currentstring='\noindent\makebox['.$ENV{'form.textwidth'}.']{\rlap{';
1.216 matthew 1119: } else {
1120: $currentstring='\par ';
1121: }
1.198 sakharuk 1122: my $signal=1;#<p> does not work inside <b>...</b>
1123: foreach my $tag (@$tagstack) {if (lc($tag) eq 'b') {$signal=0;}
1124: if (!$signal) {$currentstring = '';}
1125: }
1.144 sakharuk 1126: }
1.122 albertel 1127: return $currentstring;
1128: }
1129:
1130: sub end_p {
1.198 sakharuk 1131: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1132: my $currentstring = '';
1133: if ($target eq 'web') {
1134: $currentstring .= $token->[2];
1.198 sakharuk 1135: } elsif ($target eq 'tex') {
1.226 sakharuk 1136: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1137: if ($align eq 'center') {
1138: $currentstring .= '\end{center}';
1139: } elsif ($align eq 'right') {
1140: $currentstring .= '}}';
1141: } elsif ($align eq 'left') {
1142: $currentstring .= '}\hfill}';
1.198 sakharuk 1143: }
1.122 albertel 1144: }
1145: return $currentstring;
1146: }
1147:
1.181 sakharuk 1148: #-- <br> tag (end tag forbidden)
1.122 albertel 1149: sub start_br {
1150: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1151: my $currentstring = '';
1152: if ($target eq 'web') {
1153: $currentstring .= $token->[4];
1154: } elsif ($target eq 'tex') {
1.227 sakharuk 1155: my @tempo=@$tagstack;
1.229 sakharuk 1156: my $signal=0;
1.227 sakharuk 1157: for (my $i=$#tempo;$i>=0;$i--) {
1158: if (($tempo[$i] eq 'b') || ($tempo[$i] eq 'strong') ||
1.230 sakharuk 1159: ($tempo[$i] eq 'ol') || ($tempo[$i] eq 'ul') ||
1160: ($tempo[$i] eq 'td') || ($tempo[$i] eq 'th')) {
1.229 sakharuk 1161: $signal=1;
1.227 sakharuk 1162: last;
1163: }
1164: }
1.229 sakharuk 1165: if ($signal) {
1.219 sakharuk 1166: $currentstring .= ' \vskip 0 mm ';
1167: } elsif ($$tagstack[-2] ne 'sub' && $$tagstack[-2] ne 'sup') {
1168: $currentstring .= '\strut \\\\ \strut ';
1.1 sakharuk 1169: }
1.144 sakharuk 1170: }
1.122 albertel 1171: return $currentstring;
1172: }
1173:
1174: sub end_br {
1175: my ($target,$token) = @_;
1176: my $currentstring = '';
1177: if ($target eq 'web') {
1178: $currentstring .= $token->[2];
1179: }
1180: return $currentstring;
1181: }
1182:
1.181 sakharuk 1183: #-- <big> tag (end tag required)
1.122 albertel 1184: sub start_big {
1185: my ($target,$token) = @_;
1186: my $currentstring = '';
1187: if ($target eq 'web') {
1188: $currentstring .= $token->[4];
1189: } elsif ($target eq 'tex') {
1.137 sakharuk 1190: $currentstring .= '{\large ';
1.144 sakharuk 1191: }
1.122 albertel 1192: return $currentstring;
1193: }
1194:
1195: sub end_big {
1196: my ($target,$token) = @_;
1197: my $currentstring = '';
1198: if ($target eq 'web') {
1199: $currentstring .= $token->[2];
1200: } elsif ($target eq 'tex') {
1201: $currentstring .= '}';
1202: }
1203: return $currentstring;
1204: }
1205:
1.181 sakharuk 1206: #-- <small> tag (end tag required)
1.122 albertel 1207: sub start_small {
1208: my ($target,$token) = @_;
1209: my $currentstring = '';
1210: if ($target eq 'web') {
1211: $currentstring .= $token->[4];
1212: } elsif ($target eq 'tex') {
1213: $currentstring .= '{\footnotesize ';
1.144 sakharuk 1214: }
1.122 albertel 1215: return $currentstring;
1216: }
1217:
1218: sub end_small {
1219: my ($target,$token) = @_;
1220: my $currentstring = '';
1221: if ($target eq 'web') {
1222: $currentstring .= $token->[2];
1223: } elsif ($target eq 'tex') {
1224: $currentstring .= '}';
1225: }
1226: return $currentstring;
1227: }
1228:
1.181 sakharuk 1229: #-- <basefont> tag (end tag forbidden)
1.122 albertel 1230: sub start_basefont {
1.126 sakharuk 1231: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.122 albertel 1232: my $currentstring = '';
1233: if ($target eq 'web') {
1234: $currentstring = $token->[4];
1.126 sakharuk 1235: } elsif ($target eq 'tex') {
1236: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1237: if (defined $basesize) {
1238: $currentstring = '{\\'.$basesize.' ';
1239: }
1240: }
1.122 albertel 1241: return $currentstring;
1242: }
1243:
1244: sub end_basefont {
1.126 sakharuk 1245: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1246: my $currentstring = '';
1247: if ($target eq 'web') {
1248: $currentstring = $token->[4];
1.126 sakharuk 1249: } elsif ($target eq 'tex') {
1250: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1251: if (defined $basesize) {
1252: $currentstring = '}';
1253: }
1254: }
1.122 albertel 1255: return $currentstring;
1256: }
1257:
1.181 sakharuk 1258: #-- <font> tag (end tag required)
1.122 albertel 1259: sub start_font {
1260: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1261: my $currentstring = '';
1262: if ($target eq 'web') {
1263: my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
1.204 albertel 1264: if ($face!~/symbol/i) {
1.155 www 1265: if (($ENV{'browser.fontenhance'} eq 'on') ||
1266: ($ENV{'browser.blackwhite'} eq 'on')) { return ''; }
1267: }
1.122 albertel 1268: $currentstring = $token->[4];
1.126 sakharuk 1269: } elsif ($target eq 'tex') {
1270: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1271: if (defined $fontsize) {
1272: $currentstring = '{\\'.$fontsize.' ';
1273: }
1274: }
1.122 albertel 1275: return $currentstring;
1276: }
1277:
1278: sub end_font {
1279: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1280: my $currentstring = '';
1281: if ($target eq 'web') {
1282: $currentstring = $token->[2];
1.126 sakharuk 1283: } elsif ($target eq 'tex') {
1284: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1285: if (defined $fontsize) {
1286: $currentstring = '}';
1287: }
1288: }
1.122 albertel 1289: return $currentstring;
1290: }
1291:
1.181 sakharuk 1292: #-- <strike> tag (end tag required)
1.122 albertel 1293: sub start_strike {
1294: my ($target,$token) = @_;
1295: my $currentstring = '';
1296: if ($target eq 'web') {
1297: $currentstring .= $token->[4];
1298: } elsif ($target eq 'tex') {
1299: &Apache::lonxml::startredirection();
1300: }
1301: return $currentstring;
1302: }
1303:
1304: sub end_strike {
1305: my ($target,$token) = @_;
1306: my $currentstring = '';
1307: if ($target eq 'web') {
1308: $currentstring .= $token->[2];
1309: } elsif ($target eq 'tex') {
1310: $currentstring=&Apache::lonxml::endredirection();
1311: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1312: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1313: $currentstring=~s/(\S)\s*$/$1\}/;
1314: }
1315: return $currentstring;
1316: }
1317:
1.181 sakharuk 1318: #-- <s> tag (end tag required)
1.122 albertel 1319: sub start_s {
1320: my ($target,$token) = @_;
1321: my $currentstring = '';
1322: if ($target eq 'web') {
1323: $currentstring .= $token->[4];
1324: } elsif ($target eq 'tex') {
1325: &Apache::lonxml::startredirection();
1326: }
1327: return $currentstring;
1328: }
1329:
1330: sub end_s {
1331: my ($target,$token) = @_;
1332: my $currentstring = '';
1333: if ($target eq 'web') {
1334: $currentstring .= $token->[2];
1335: } elsif ($target eq 'tex') {
1336: $currentstring=&Apache::lonxml::endredirection();
1337: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1338: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1339: $currentstring=~s/(\S)\s*$/$1\}/;
1340: }
1341: return $currentstring;
1342: }
1343:
1.181 sakharuk 1344: #-- <sub> tag (end tag required)
1.122 albertel 1345: sub start_sub {
1346: my ($target,$token) = @_;
1347: my $currentstring = '';
1348: if ($target eq 'web') {
1349: $currentstring .= $token->[4];
1350: } elsif ($target eq 'tex') {
1.202 sakharuk 1351: $currentstring .= '\ensuremath{_{';
1.122 albertel 1352: }
1353: return $currentstring;
1354: }
1355:
1356: sub end_sub {
1357: my ($target,$token) = @_;
1358: my $currentstring = '';
1359: if ($target eq 'web') {
1360: $currentstring .= $token->[2];
1361: } elsif ($target eq 'tex') {
1.202 sakharuk 1362: $currentstring .= '}}';
1.122 albertel 1363: }
1364: return $currentstring;
1365: }
1366:
1.181 sakharuk 1367: #-- <sup> tag (end tag required)
1.122 albertel 1368: sub start_sup {
1369: my ($target,$token) = @_;
1370: my $currentstring = '';
1371: if ($target eq 'web') {
1372: $currentstring .= $token->[4];
1373: } elsif ($target eq 'tex') {
1.202 sakharuk 1374: $currentstring .= '\ensuremath{^{';
1.122 albertel 1375: }
1376: return $currentstring;
1377: }
1378:
1379: sub end_sup {
1380: my ($target,$token) = @_;
1381: my $currentstring = '';
1382: if ($target eq 'web') {
1383: $currentstring .= $token->[2];
1384: } elsif ($target eq 'tex') {
1.202 sakharuk 1385: $currentstring .= '}}';
1.122 albertel 1386: }
1387: return $currentstring;
1388: }
1389:
1.181 sakharuk 1390: #-- <hr> tag (end tag forbidden)
1.122 albertel 1391: sub start_hr {
1.124 sakharuk 1392: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1393: my $currentstring = '';
1394: if ($target eq 'web') {
1395: $currentstring .= $token->[4];
1396: } elsif ($target eq 'tex') {
1.149 sakharuk 1397: my $LaTeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1.124 sakharuk 1398: if (defined $LaTeXwidth) {
1399: if ($LaTeXwidth=~/^%/) {
1400: substr($LaTeXwidth,0,1)='';
1401: $LaTeXwidth=($LaTeXwidth/100).'\textwidth';
1402: }
1403: } else {
1.148 sakharuk 1404: $LaTeXwidth ='0.9\textwidth';
1.124 sakharuk 1405: }
1406: my ($pre,$post);
1407: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1408: if (($align eq 'center') || (not defined $align)) {
1409: $pre=''; $post='';
1410: } elsif ($align eq 'left') {
1411: $pre='\rlap{'; $post='} \hfill';
1412: } elsif ($align eq 'right') {
1413: $pre=' \hfill \llap{'; $post='}';
1414: }
1.148 sakharuk 1415: $currentstring .= ' \vskip 0 mm \noindent\makebox['.$LaTeXwidth.']{'.$pre.'\makebox['.
1.124 sakharuk 1416: $LaTeXwidth.'][b]{\hrulefill}'.$post.'}\vskip 0 mm ';
1.122 albertel 1417: }
1418: return $currentstring;
1419: }
1420:
1421: sub end_hr {
1422: my ($target,$token) = @_;
1423: my $currentstring = '';
1424: if ($target eq 'web') {
1425: $currentstring .= $token->[2];
1.148 sakharuk 1426: }
1.122 albertel 1427: return $currentstring;
1428: }
1429:
1.181 sakharuk 1430: #-- <div> tag (end tag required)
1.122 albertel 1431: sub start_div {
1432: my ($target,$token) = @_;
1433: my $currentstring = '';
1434: if ($target eq 'web') {
1435: $currentstring .= $token->[4];
1436: }
1437: return $currentstring;
1438: }
1439:
1440: sub end_div {
1441: my ($target,$token) = @_;
1442: my $currentstring = '';
1443: if ($target eq 'web') {
1444: $currentstring .= $token->[2];
1445: }
1446: return $currentstring;
1447: }
1448:
1.181 sakharuk 1449: #-- <a> tag (end tag required)
1.122 albertel 1450: sub start_a {
1.149 sakharuk 1451: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1452: my $currentstring = '';
1453: if ($target eq 'web') {
1454: $currentstring .= $token->[4];
1455: } elsif ($target eq 'tex') {
1.149 sakharuk 1456: my $a=&Apache::lonxml::get_param('href',$parstack,$safeeval,undef,1);
1.161 sakharuk 1457: my $b=&Apache::lonxml::get_param('name',$parstack,$safeeval,undef,1);
1458: if ($a=~/\S/) {
1459: $a=~s/([^\\])%/$1\\\%/g;
1460: $currentstring .= '\ref{URI: '.$a.'}';
1461: } elsif ($b=~/\S/) {
1462: $currentstring .= '\ref{Anchor: '.$b.'}';
1463: } else {
1464: $currentstring.='';
1465: }
1.122 albertel 1466: }
1467: return $currentstring;
1468: }
1469:
1470: sub end_a {
1.168 albertel 1471: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1472: my $currentstring = '';
1473: if ($target eq 'web') {
1474: $currentstring .= $token->[2];
1475: }
1476: return $currentstring;
1477: }
1478:
1.181 sakharuk 1479: #-- <li> tag (end tag optional)
1.122 albertel 1480: sub start_li {
1.168 albertel 1481: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1482: my $currentstring = '';
1483: if ($target eq 'web') {
1484: $currentstring = $token->[4];
1485: } elsif ($target eq 'tex') {
1.146 sakharuk 1486: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,1);
1487: if ($type=~/circle/) {
1488: $currentstring .= ' \item[o] ';
1489: } elsif ($type=~/square/) {
1490: $currentstring .= ' \item[$\Box$] ';
1491: } elsif ($type ne '') {
1492: $currentstring .= ' \item['.$type.'] ';
1.122 albertel 1493: } else {
1.146 sakharuk 1494: $currentstring .= ' \item ';
1.122 albertel 1495: }
1496: }
1497: return $currentstring;
1498: }
1499:
1500: sub end_li {
1501: my ($target,$token) = @_;
1502: my $currentstring = '';
1503: if ($target eq 'web') {
1504: $currentstring = $token->[2];
1505: }
1506: return $currentstring;
1507: }
1508:
1.181 sakharuk 1509: #-- <u> tag (end tag required)
1.122 albertel 1510: sub start_u {
1511: my ($target,$token) = @_;
1512: my $currentstring = '';
1513: if ($target eq 'web') {
1514: $currentstring .= $token->[4];
1515: } elsif ($target eq 'tex') {
1516: &Apache::lonxml::startredirection();
1517: }
1518: return $currentstring;
1519: }
1520:
1521: sub end_u {
1522: my ($target,$token) = @_;
1523: my $currentstring = '';
1524: if ($target eq 'web') {
1525: $currentstring .= $token->[2];
1526: } elsif ($target eq 'tex') {
1527: $currentstring=&Apache::lonxml::endredirection();
1528: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1529: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1530: $currentstring=~s/(\S)\s*$/$1\}/;
1531: }
1532: return $currentstring;
1533: }
1534:
1.181 sakharuk 1535: #-- <ul> tag (end tag required)
1.122 albertel 1536: sub start_ul {
1.125 sakharuk 1537: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1538: my $currentstring = '';
1539: if ($target eq 'web') {
1540: $currentstring = $token->[4];
1541: } elsif ($target eq 'tex') {
1.125 sakharuk 1542: my $TeXtype=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1543: if ($TeXtype eq 'disc') {
1.222 sakharuk 1544: $currentstring .= '\renewcommand{\labelitemi}{$\bullet$}'.
1545: '\renewcommand{\labelitemii}{$\bullet$}'.
1546: '\renewcommand{\labelitemiii}{$\bullet$}'.
1547: '\renewcommand{\labelitemiv}{$\bullet$}';
1.125 sakharuk 1548: } elsif ($TeXtype eq 'circle') {
1.222 sakharuk 1549: $currentstring .= '\renewcommand{\labelitemi}{$\circ$}'.
1550: '\renewcommand{\labelitemii}{$\circ$}'.
1551: '\renewcommand{\labelitemiii}{$\circ$}'.
1552: '\renewcommand{\labelitemiv}{$\circ$}';
1.125 sakharuk 1553: } elsif ($TeXtype eq 'square') {
1.222 sakharuk 1554: $currentstring .= '\renewcommand{\labelitemi}{$\diamond$}'.
1555: '\renewcommand{\labelitemii}{$\diamond$}'.
1556: '\renewcommand{\labelitemiii}{$\diamond$}'.
1557: '\renewcommand{\labelitemiv}{$\diamond$}';
1.125 sakharuk 1558: }
1.222 sakharuk 1559: $currentstring .= '\strut \begin{itemize}';
1.122 albertel 1560: }
1561: return $currentstring;
1562: }
1563:
1564: sub end_ul {
1565: my ($target,$token) = @_;
1566: my $currentstring = '';
1567: if ($target eq 'web') {
1568: $currentstring = $token->[2];
1569: } elsif ($target eq 'tex') {
1.222 sakharuk 1570: $currentstring = '\end{itemize} \renewcommand{\labelitemi}{$\bullet$}'.
1571: '\renewcommand{\labelitemii}{$\bullet$}'.
1572: '\renewcommand{\labelitemiii}{$\bullet$}'.
1573: '\renewcommand{\labelitemiv}{$\bullet$}\strut ';
1.122 albertel 1574: }
1575: return $currentstring;
1576: }
1577:
1.181 sakharuk 1578: #-- <menu> tag (end tag required)
1.122 albertel 1579: sub start_menu {
1580: my ($target,$token) = @_;
1581: my $currentstring = '';
1582: if ($target eq 'web') {
1583: $currentstring = $token->[4];
1584: } elsif ($target eq 'tex') {
1585: $currentstring = " \\begin{itemize} ";
1586: }
1587: return $currentstring;
1588: }
1589:
1590: sub end_menu {
1591: my ($target,$token) = @_;
1592: my $currentstring = '';
1593: if ($target eq 'web') {
1594: $currentstring = $token->[2];
1595: } elsif ($target eq 'tex') {
1596: $currentstring = " \\end{itemize}";
1597: }
1598: return $currentstring;
1599: }
1600:
1.181 sakharuk 1601: #-- <dir> tag (end tag required)
1.122 albertel 1602: sub start_dir {
1603: my ($target,$token) = @_;
1604: my $currentstring = '';
1605: if ($target eq 'web') {
1606: $currentstring = $token->[4];
1607: } elsif ($target eq 'tex') {
1608: $currentstring = " \\begin{itemize} ";
1609: }
1610: return $currentstring;
1611: }
1612:
1613: sub end_dir {
1614: my ($target,$token) = @_;
1615: my $currentstring = '';
1616: if ($target eq 'web') {
1617: $currentstring = $token->[2];
1618: } elsif ($target eq 'tex') {
1619: $currentstring = " \\end{itemize}";
1620: }
1621: return $currentstring;
1622: }
1623:
1.181 sakharuk 1624: #-- <ol> tag (end tag required)
1.122 albertel 1625: sub start_ol {
1.125 sakharuk 1626: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1627: my $currentstring = '';
1628: if ($target eq 'web') {
1629: $currentstring = $token->[4];
1630: } elsif ($target eq 'tex') {
1.125 sakharuk 1631: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1632: if ($type eq '1') {
1.222 sakharuk 1633: $currentstring .= '\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1634: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1635: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1636: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}';
1.125 sakharuk 1637: } elsif ($type eq 'A') {
1.222 sakharuk 1638: $currentstring .= '\renewcommand{\labelenumi}{\Alph{enumi}.}'.
1639: '\renewcommand{\labelenumii}{\Alph{enumii}.}'.
1640: '\renewcommand{\labelenumiii}{\Alph{enumiii}.}'.
1641: '\renewcommand{\labelenumiv}{\Alph{enumiv}.}';
1.125 sakharuk 1642: } elsif ($type eq 'a') {
1.222 sakharuk 1643: $currentstring .= '\renewcommand{\labelenumi}{\alph{enumi}.}'.
1644: '\renewcommand{\labelenumii}{\alph{enumii}.}'.
1645: '\renewcommand{\labelenumiii}{\alph{enumiii}.}'.
1646: '\renewcommand{\labelenumiv}{\alph{enumiv}.}';
1.125 sakharuk 1647: } elsif ($type eq 'i') {
1.222 sakharuk 1648: $currentstring .= '\renewcommand{\labelenumi}{\roman{enumi}.}'.
1649: '\renewcommand{\labelenumii}{\roman{enumii}.}'.
1650: '\renewcommand{\labelenumiii}{\roman{enumiii}.}'.
1651: '\renewcommand{\labelenumiv}{\roman{enumiv}.}';
1.125 sakharuk 1652: } elsif ($type eq 'I') {
1.222 sakharuk 1653: $currentstring .= '\renewcommand{\labelenumi}{\Roman{enumi}.}'.
1654: '\renewcommand{\labelenumii}{\Roman{enumii}.}'.
1655: '\renewcommand{\labelenumiii}{\Roman{enumiii}.}'.
1656: '\renewcommand{\labelenumiv}{\Roman{enumiv}.}';
1.125 sakharuk 1657: }
1.222 sakharuk 1658: $currentstring .= '\strut \begin{enumerate}';
1.122 albertel 1659: }
1660: return $currentstring;
1661: }
1662:
1663: sub end_ol {
1664: my ($target,$token) = @_;
1665: my $currentstring = '';
1666: if ($target eq 'web') {
1667: $currentstring = $token->[2];
1668: } elsif ($target eq 'tex') {
1.222 sakharuk 1669: $currentstring = '\end{enumerate}\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1670: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1671: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1672: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}\strut ';
1.122 albertel 1673: }
1674: return $currentstring;
1675: }
1676:
1.181 sakharuk 1677: #-- <dl> tag (end tag required)
1.122 albertel 1678: sub start_dl {
1679: my ($target,$token) = @_;
1680: my $currentstring = '';
1681: if ($target eq 'web') {
1682: $currentstring = $token->[4];
1683: } elsif ($target eq 'tex') {
1.174 sakharuk 1684: $currentstring = '\begin{description}';
1685: @Apache::londefdef::description=();
1686: $Apache::londefdef::DD_redirection=0;
1687: $Apache::londefdef::DT_redirection=0;
1.122 albertel 1688: }
1689: return $currentstring;
1690: }
1691:
1692: sub end_dl {
1.174 sakharuk 1693: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1694: my $currentstring = '';
1695: if ($target eq 'web') {
1696: $currentstring = $token->[2];
1697: } elsif ($target eq 'tex') {
1.174 sakharuk 1698: if ($Apache::londefdef::DT_redirection) {
1699: my $data=&item_cleanup;
1700: push @Apache::londefdef::description,'\item['.$data.']';
1701: $Apache::londefdef::DT_redirection=0;
1702: } elsif ($Apache::londefdef::DD_redirection) {
1703: $Apache::londefdef::description[-1].=&Apache::lonxml::endredirection();
1704: }
1705: foreach my $element (@Apache::londefdef::description) {
1706: $currentstring.=' '.$element.' ';
1707: }
1708: @Apache::londefdef::description=();
1709: $currentstring.='\end{description}';
1.122 albertel 1710: }
1711: return $currentstring;
1712: }
1713:
1.172 sakharuk 1714: #-- <dt> tag (end tag optional)
1.122 albertel 1715: sub start_dt {
1.172 sakharuk 1716: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1717: my $currentstring='';
1.122 albertel 1718: if ($target eq 'web') {
1719: $currentstring = $token->[4];
1720: } elsif ($target eq 'tex') {
1.174 sakharuk 1721: if ($Apache::londefdef::DT_redirection) {
1722: my $data=&item_cleanup;
1723: push @Apache::londefdef::description,'\item['.$data.']';
1724: $Apache::londefdef::DT_redirection=0;
1725: } elsif ($Apache::londefdef::DD_redirection) {
1726: $Apache::londefdef::description[-1].=&Apache::lonxml::endredirection();
1727: $Apache::londefdef::DD_redirection=0;
1728: }
1729: &Apache::lonxml::startredirection();
1730: $Apache::londefdef::DT_redirection=1;
1.122 albertel 1731: }
1732: return $currentstring;
1733: }
1734:
1735: sub end_dt {
1.172 sakharuk 1736: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1737: my $currentstring = '';
1738: if ($target eq 'web') {
1739: $currentstring = $token->[2];
1740: } elsif ($target eq 'tex') {
1.173 sakharuk 1741: my $data=&item_cleanup;
1.174 sakharuk 1742: push @Apache::londefdef::description,'\item['.$data.']';
1743: $Apache::londefdef::DT_redirection=0;
1.122 albertel 1744: }
1745: return $currentstring;
1746: }
1747:
1.173 sakharuk 1748: sub item_cleanup {
1.174 sakharuk 1749: my $item=&Apache::lonxml::endredirection();
1.173 sakharuk 1750: $item=~s/\\begin{center}//g;
1751: $item=~s/\\end{center}//g;
1752: return $item;
1753: }
1754:
1.181 sakharuk 1755: #-- <dd> tag (end tag optional)
1.122 albertel 1756: sub start_dd {
1.147 sakharuk 1757: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1758: my $currentstring = '';
1759: if ($target eq 'web') {
1760: $currentstring = $token->[4];
1.147 sakharuk 1761: } elsif ($target eq 'tex') {
1.174 sakharuk 1762: if ($Apache::londefdef::DT_redirection) {
1.173 sakharuk 1763: my $data=&item_cleanup;
1.174 sakharuk 1764: push @Apache::londefdef::description,'\item['.$data.']';
1765: $Apache::londefdef::DT_redirection=0;
1.147 sakharuk 1766: }
1.174 sakharuk 1767: $Apache::londefdef::DD_redirection=1;
1768: &Apache::lonxml::startredirection();
1.122 albertel 1769: }
1770: return $currentstring;
1771: }
1772:
1773: sub end_dd {
1.174 sakharuk 1774: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1775: my $currentstring = '';
1776: if ($target eq 'web') {
1777: $currentstring = $token->[2];
1.174 sakharuk 1778: } elsif ($target eq 'tex') {
1779: $Apache::londefdef::description[-1].=&Apache::lonxml::endredirection();
1780: $Apache::londefdef::DD_redirection=0;
1781: }
1.122 albertel 1782: return $currentstring;
1783: }
1784:
1.181 sakharuk 1785: #-- <table> tag (end tag required)
1.206 sakharuk 1786: #list of supported attributes: border,width,TeXwidth
1.91 sakharuk 1787: sub start_table {
1788: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.206 sakharuk 1789: my ($textwidth,$currentstring)=('','');
1.91 sakharuk 1790: if ($target eq 'web') {
1791: $currentstring = $token->[4];
1792: } elsif ($target eq 'tex') {
1793: my $aa = {};
1794: push @Apache::londefdef::table, $aa;
1795: $Apache::londefdef::table[-1]{'row_number'} = -1;
1.222 sakharuk 1796: #maximum table's width (default coincides with text line length)
1.206 sakharuk 1797: if ($#Apache::londefdef::table==0) {
1798: $textwidth=&recalc($ENV{'form.textwidth'}); #result is always in mm
1799: $textwidth=~/(\d+\.?\d*)/;
1800: $textwidth=0.95*$1; #accounts "internal" LaTeX space for table frame
1801: } else {
1802: if ($Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}]=~/\d/) {
1803: #the maximum width of nested table is determined by LATeX width of parent cell
1804: $textwidth=$Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}];
1805: } else {
1806: #try to use all space not used before (minus 5% for LaTeX table internal) - rather silly
1.228 sakharuk 1807: $textwidth=$Apache::londefdef::table[-2]{'width'};
1.206 sakharuk 1808: for (my $i=0;$i<$Apache::londefdef::table[-2]{'counter_columns'};$i++) {
1809: $textwidth=$textwidth-$Apache::londefdef::table[-2]{'TeXlen'}[0][$i];
1810: }
1811: }
1812: }
1.126 sakharuk 1813: my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1814: if (not defined $TeXwidth) {
1815: my $htmlwidth = &Apache::lonxml::get_param('width',$parstack,$safeeval,undef,1);
1816: if ($htmlwidth=~/%/) {
1.203 sakharuk 1817: $Apache::londefdef::table[-1]{'percent'}=1;
1.126 sakharuk 1818: $htmlwidth=~/(\d+)/;
1.203 sakharuk 1819: $Apache::londefdef::table[-1]{'width'}=$1*$textwidth/100;;
1.126 sakharuk 1820: } else {
1821: $Apache::londefdef::table[-1]{'width'}=$textwidth;
1822: }
1823: } elsif ($TeXwidth=~/%/) {
1.203 sakharuk 1824: $Apache::londefdef::table[-1]{'percent'}=1;
1.126 sakharuk 1825: $TeXwidth=~/(\d+)/;
1.206 sakharuk 1826: $Apache::londefdef::table[-1]{'width'}=$1*$textwidth/100;
1.126 sakharuk 1827: } else {
1.222 sakharuk 1828: $Apache::londefdef::table[-1]{'forcetablewidth'}=1;
1.206 sakharuk 1829: $Apache::londefdef::table[-1]{'width'}=$TeXwidth;
1.126 sakharuk 1830: }
1831: #table's border
1.206 sakharuk 1832: my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval);
1.208 sakharuk 1833: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
1.91 sakharuk 1834: unless (defined $border) { $border = 0; }
1835: if ($border) {
1836: $Apache::londefdef::table[-1]{'hinc'} = '\hline ';
1837: $Apache::londefdef::table[-1]{'vinc'} = '&';
1838: $Apache::londefdef::table[-1]{'vvinc'} = '|';
1839: } else {
1840: $Apache::londefdef::table[-1]{'hinc'} = '';
1841: $Apache::londefdef::table[-1]{'vinc'} = '&';
1842: $Apache::londefdef::table[-1]{'vvinc'} = '';
1843: }
1.206 sakharuk 1844: if ($#Apache::londefdef::table==0) {
1.218 sakharuk 1845: $Apache::londefdef::table[-1]{'output'}='\strut\newline\strut\setlength{\tabcolsep}{1 mm}';
1.206 sakharuk 1846: }
1847: $Apache::londefdef::table[-1]{'output'}.=' \noindent \begin{tabular} ';
1848: $Apache::londefdef::table[-1]{'TeXlen'}=[];
1849: $Apache::londefdef::table[-1]{'objectlen'}=[];
1.229 sakharuk 1850: $Apache::londefdef::table[-1]{'objectsignal'}=[];
1.206 sakharuk 1851: $Apache::londefdef::table[-1]{'maxlen'}=[];
1852: $Apache::londefdef::table[-1]{'minlen'}=[];
1853: $Apache::londefdef::table[-1]{'content'}=[];
1854: $Apache::londefdef::table[-1]{'align'}=[];
1855: $currentstring='\keephidden{NEW TABLE ENTRY}';
1856: }
1.91 sakharuk 1857: return $currentstring;
1858: }
1.122 albertel 1859:
1860: sub end_table {
1861: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1862: my $currentstring = '';
1863: if ($target eq 'web') {
1864: $currentstring = $token->[2];
1865: } elsif ($target eq 'tex') {
1866: my $inmemory = '';
1867: my $output = '';
1.206 sakharuk 1868: my $WARNING='';
1869: #width of columns from TeXwidth attributes
1870: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1871: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
1872: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]<$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn]) {
1873: $Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]=$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn];
1874: }
1875: }
1876: }
1877: #free space and number of empty columns
1878: my ($available_space,$empty_columns)=($Apache::londefdef::table[-1]{'width'},0);
1.228 sakharuk 1879: if ($#Apache::londefdef::table ne 0) {$available_space=0.9*$available_space;}
1.206 sakharuk 1880: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
1881: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]==0) {
1882: $empty_columns++;
1883: } else {
1884: $available_space=$available_space-$Apache::londefdef::table[-1]{'TeXlen'}[0][$jn];
1885: }
1886: }
1887: #boundaries for contents columns
1888: my @min_len=();#columns can not be narrower
1889: my @max_len=();#maximum length of column
1890: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
1891: my ($localmin,$localmax)=(0,0);
1892: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1893: if ($localmin<$Apache::londefdef::table[-1]{'minlen'}[$in][$jn]) {
1894: $localmin=$Apache::londefdef::table[-1]{'minlen'}[$in][$jn];
1895: }
1896: if ($localmax<$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn]) {
1897: $localmax=$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn];
1898: }
1899: }
1900: push @min_len, $localmin;
1901: push @max_len, $localmax;
1.122 albertel 1902: }
1.206 sakharuk 1903: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
1904: my $localmin=0,;
1905: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1906: if ($localmin<$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn]) {
1907: $localmin=$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn];
1908: }
1909: }
1.229 sakharuk 1910: if ($max_len[$jn]<$localmin) {
1911: $max_len[$jn]=$localmin;
1912: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
1913: }#object size is bigger
1914: if ($min_len[$jn]<$localmin) {
1915: $min_len[$jn]=$localmin;
1916: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
1917: }#object size is bigger
1.206 sakharuk 1918: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]!=0) {
1919: $min_len[$jn]=0;
1920: $max_len[$jn]=0;
1921: }
1922: }
1923: #final adjustment of column width
1924: my @fwidth=@{$Apache::londefdef::table[-1]{'TeXlen'}[0]};#final width array
1925: my @adjust=();
1926: #step 1. adjustment by maximum value
1927: my $space_neeeded=0;
1928: for (my $jn=0;$jn<=$#max_len;$jn++) {
1929: $space_neeeded=$space_neeeded+$max_len[$jn];
1930: }
1931: if ($space_neeeded<=$available_space) {
1932: for (my $jn=0;$jn<=$#max_len;$jn++) {
1933: if ($fwidth[$jn]==0) {
1934: $fwidth[$jn]=$max_len[$jn];
1.53 sakharuk 1935: }
1.51 sakharuk 1936: }
1.206 sakharuk 1937: } else {
1938: #step 2. adjustment by minimum value (estimation)
1939: $space_neeeded=0;
1940: for (my $jn=0;$jn<=$#min_len;$jn++) {
1941: $space_neeeded+=$min_len[$jn];
1942: }
1943: if ($space_neeeded>$available_space) {
1944: $WARNING=' \textbf{NOT ENOUGH SPACE FOR TABLE} ';
1945: for (my $jn=0;$jn<=$#max_len;$jn++) {
1946: if ($fwidth[$jn]==0) {
1947: $fwidth[$jn]=$min_len[$jn];
1948: }
1949: }
1.229 sakharuk 1950: #check if we have objects which can be scaled
1951: my $how_many_to_scale=0;
1952: my @to_scale=();
1953: for (my $jn=0;$jn<=$#max_len;$jn++) {
1954: if ($Apache::londefdef::table[-1]{'objectsignal'}[$jn] eq '1') {
1955: $how_many_to_scale++;
1956: push @to_scale, $jn;
1957: }
1958: }
1959: if ($how_many_to_scale>0) {
1960: my $space_to_adjust=($space_neeeded-$available_space)/$how_many_to_scale;
1961: foreach my $jn (@to_scale) {
1962: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1963: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/;
1964: if ($1 ne '') {
1965: my $current_length=&recalc($1);
1966: $current_length=~/(\d+\.?\d*)/;
1967: $current_length=$current_length-$space_to_adjust;
1968: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/width=$current_length mm/;
1969: }
1970: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/\[(\d+\.?\d*)\s*mm\]/;
1971: if ($1 ne '') {
1972: my $current_length=$1;
1973: $current_length=$current_length-$space_to_adjust;
1974: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/\[(\d+\.?\d*)\s*mm\]/\[$current_length mm\]/;
1975: }
1976: }
1977: $fwidth[$jn]=$fwidth[$jn]-$space_to_adjust;
1978: }
1979: }
1.206 sakharuk 1980: } else {
1981: #step 3. adjustment over minimal + corrections
1982: my $enlarge_coef=$available_space/$space_neeeded;
1983: my $acsessive=0;
1984: for (my $jn=0;$jn<=$#min_len;$jn++) {
1985: $adjust[$jn]=$min_len[$jn]*$enlarge_coef;
1986: if ($adjust[$jn]>$max_len[$jn]) {
1987: $fwidth[$jn]=$max_len[$jn];
1988: $acsessive=$acsessive+$adjust[$jn]-$max_len[$jn];
1989: $adjust[$jn]=0;
1990: }
1991: }
1992: if ($acsessive>0) {
1993: #we have an excess of space and can redistribute it
1994: my $notempty_columns=0;
1995: for (my $jn=0;$jn<=$#min_len;$jn++) {
1996: if ($adjust[$jn]!=0) {
1997: $notempty_columns++;
1998: }
1999: }
2000: my $per_column=$acsessive/$notempty_columns;
2001: for (my $jn=0;$jn<=$#min_len;$jn++) {
2002: if ($adjust[$jn]!=0) {
2003: $adjust[$jn]+=$per_column;
2004: $fwidth[$jn]=$adjust[$jn];
2005: }
1.223 sakharuk 2006: }
2007: } else {
2008: for (my $jn=0;$jn<=$#min_len;$jn++) {
2009: $fwidth[$jn]=$adjust[$jn];
1.206 sakharuk 2010: }
2011: }
1.203 sakharuk 2012: }
2013: }
1.222 sakharuk 2014: #use all available width if it is defined in % or as TeXwidth
2015: if (($Apache::londefdef::table[-1]{'percent'}==1) || ($Apache::londefdef::table[-1]{'forcetablewidth'}==1)) {
1.203 sakharuk 2016: my $current=0;
1.206 sakharuk 2017: for (my $i=0;$i<=$#fwidth;$i++) {
2018: $current+=$fwidth[$i];
1.203 sakharuk 2019: }
2020: my $coef=$Apache::londefdef::table[-1]{'width'}/$current;
1.206 sakharuk 2021: for (my $i=0;$i<=$#fwidth;$i++) {
2022: $fwidth[$i]*=$coef;
2023: }
2024: }
2025: #removing of empty columns if allowed
1.208 sakharuk 2026: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
1.206 sakharuk 2027: if ($permission eq 'yes') {
2028: my @cleaned_table=();
2029: my @cleaned_header=();
2030: my $colind=0;
2031: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2032: if ($fwidth[$jn]!=0) {
2033: #we need to copy column
2034: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2035: $cleaned_table[$in][$colind]=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
2036: $cleaned_header[$colind]=$fwidth[$jn];
2037: }
2038: $colind++;
2039: }
1.122 albertel 2040: }
1.206 sakharuk 2041: $Apache::londefdef::table[-1]{'content'}=\@cleaned_table;
2042: @fwidth=@cleaned_header;
1.122 albertel 2043: }
1.206 sakharuk 2044: #construct header of the table
2045: my $header_of_table = '{'.$Apache::londefdef::table[-1]{'vvinc'};
2046: for (my $in=0;$in<=$#fwidth;$in++) {
2047: $header_of_table.='p{'.$fwidth[$in].' mm}'.$Apache::londefdef::table[-1]{'vvinc'};
2048: }
2049: $header_of_table .= '}';
1.126 sakharuk 2050: #fill the table
2051: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1.206 sakharuk 2052: for (my $jn=0;$jn<=$#fwidth;$jn++) {
2053: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
1.228 sakharuk 2054: $output.='\vspace*{-6 mm}\begin{center}';
1.206 sakharuk 2055: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
2056: $output.=' \hfill \llap{'
2057: }
2058: $output.=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
2059: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
1.228 sakharuk 2060: $output.='\end{center}\vspace*{-6 mm}';
1.206 sakharuk 2061: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
2062: $output.='} ';
2063: }
2064: if ($jn!=$#fwidth) {$output.=' '.$Apache::londefdef::table[-1]{'vinc'};}
2065: }
2066: $output.=' \\\\ '.$Apache::londefdef::table[-1]{'hinc'}.' ';
1.122 albertel 2067: }
1.218 sakharuk 2068: $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut\newline\strut ';
1.127 sakharuk 2069: if ($#Apache::londefdef::table > 0) {
2070: my $inmemory = $Apache::londefdef::table[-1]{'output'};
2071: pop @Apache::londefdef::table;
1.129 sakharuk 2072: push @{$Apache::londefdef::table[-1]{'include'}}, $inmemory;
1.127 sakharuk 2073: } else {
2074: $currentstring .= $Apache::londefdef::table[-1]{'output'};
2075: pop @Apache::londefdef::table;
1.143 sakharuk 2076: undef @Apache::londefdef::table;
1.127 sakharuk 2077: }
1.122 albertel 2078: }
2079: return $currentstring;
2080: }
2081:
1.166 sakharuk 2082: #-- <tr> tag (end tag optional)
1.122 albertel 2083: sub start_tr {
2084: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2085: my $currentstring = '';
2086: if ($target eq 'web') {
2087: $currentstring = $token->[4];
2088: } elsif ($target eq 'tex') {
2089: $Apache::londefdef::table[-1]{'row_number'}++;
1.206 sakharuk 2090: my $alignchar=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.122 albertel 2091: if ($alignchar ne '') {
1.206 sakharuk 2092: push @ {$Apache::londefdef::table[-1]{'rows'} },substr($alignchar,0,1);
1.122 albertel 2093: } else {
2094: push @ {$Apache::londefdef::table[-1]{'rows'} }, 'l';
2095: }
2096: push ( @{ $Apache::londefdef::table[-1]{'rowdata'} }, $Apache::londefdef::table[-1]{'hinc'});
2097: $Apache::londefdef::table[-1]{'counter_columns'} = -1;
1.206 sakharuk 2098: push @ {$Apache::londefdef::table[-1]{'TeXlen'}}, [];
2099: push @ {$Apache::londefdef::table[-1]{'objectlen'}}, [];
2100: push @ {$Apache::londefdef::table[-1]{'minlen'}}, [];
2101: push @ {$Apache::londefdef::table[-1]{'maxlen'}}, [];
2102: push @ {$Apache::londefdef::table[-1]{'content'}}, [];
1.122 albertel 2103: }
2104: return $currentstring;
2105: }
2106:
2107: sub end_tr {
1.160 sakharuk 2108: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 2109: my $currentstring = '';
2110: if ($target eq 'web') {
2111: $currentstring = $token->[2];
2112: } elsif ($target eq 'tex') {
1.160 sakharuk 2113: if ($Apache::londefdef::TD_redirection) {
2114: &end_td_tex($parstack,$parser,$safeeval);
2115: }
1.122 albertel 2116: }
2117: return $currentstring;
2118: }
2119:
1.166 sakharuk 2120: #-- <td> tag (end tag optional)
1.122 albertel 2121: sub start_td {
2122: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2123: my $currentstring = '';
2124: if ($target eq 'web') {
2125: $currentstring = $token->[4];
2126: } elsif ($target eq 'tex') {
1.160 sakharuk 2127: $Apache::londefdef::TD_redirection = 1;
1.159 sakharuk 2128: &tag_check('tr','td',$tagstack,$parstack,$parser,$safeeval);
1.122 albertel 2129: }
2130: return $currentstring;
2131: }
1.159 sakharuk 2132:
2133: sub tag_check {
2134: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
1.160 sakharuk 2135: my @ar=@$parstack;
2136: for (my $i=$#ar-1;$i>=0;$i--) {
2137: if (lc($$tagstack[$i]) eq $good_tag) {
2138: &start_td_tex($parstack,$parser,$safeeval);
2139: last;
2140: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2141: splice @ar, $i+1;
2142: &end_td_tex(\@ar,$parser,$safeeval);
2143: &start_td_tex($parstack,$parser,$safeeval);
2144: last;
1.159 sakharuk 2145: }
1.160 sakharuk 2146: }
1.159 sakharuk 2147: return '';
2148: }
2149:
2150: sub start_td_tex {
2151: my ($parstack,$parser,$safeeval) = @_;
1.206 sakharuk 2152: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2153: if ($alignchar eq '') {
2154: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
1.159 sakharuk 2155: }
1.206 sakharuk 2156: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
1.159 sakharuk 2157: $Apache::londefdef::table[-1]{'counter_columns'}++;
1.206 sakharuk 2158: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2159: if (defined $TeXwidth) {
2160: my $current_length=&recalc($TeXwidth);
2161: $current_length=~/(\d+\.?\d*)/;
2162: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2163: }
1.159 sakharuk 2164: &Apache::lonxml::startredirection();
2165: return '';
2166: }
2167:
2168: sub end_td_tex {
2169: my ($parstack,$parser,$safeeval) = @_;
2170: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2171: my $data=&Apache::lonxml::endredirection();
2172: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2173: if (defined $TeXwidth) {
1.206 sakharuk 2174: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2175: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2176: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
1.159 sakharuk 2177: } else {
1.206 sakharuk 2178: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2179: my $garbage_data=$data;
2180: my $fwidth=0;
2181: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2182: my $current_length=&recalc($1);
2183: $current_length=~/(\d+\.?\d*)/;
2184: if ($fwidth<$1) {$fwidth=$1;}
2185: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2186: }
2187: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2188: my $current_length=$1;
2189: if ($fwidth<$current_length) {$fwidth=$current_length;}
2190: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2191: }
2192: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2193: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2194: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2195: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
1.231 sakharuk 2196: } elsif ($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)*/) {
2197: my $garbage_data=$data;
2198: my $fwidth=0;
2199: while ($garbage_data=~/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)\s*\}/) {
2200: my $current_length=&recalc($1);
2201: $current_length=~/(\d+\.?\d*)/;
2202: if ($fwidth<$1) {$fwidth=$1;}
2203: $garbage_data=~s/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2204: }
2205: while ($garbage_data=~/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2206: my $current_length=&recalc($1);
2207: $current_length=~/(\d+\.?\d*)/;
2208: if ($fwidth<$1) {$fwidth=$1;}
2209: $garbage_data=~s/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2210: }
2211: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2212: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2213: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2214: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2215: $data=~s/\\\\\s*$//;
1.159 sakharuk 2216: } else {
1.166 sakharuk 2217: $data=~s/^\s+(\S.*)/$1/;
1.159 sakharuk 2218: $data=~s/(.*\S)\s+$/$1/;
1.166 sakharuk 2219: $data=~s/(\s)+/$1/;
1.206 sakharuk 2220: my ($current_length,$min_length)=(0,0);
1.166 sakharuk 2221: if ($data=~/\\vskip/) {
2222: my $newdata=$data;
2223: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2224: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2225: foreach my $elementdata (@newdata) {
1.206 sakharuk 2226: my $lengthnewdata=2.5*&LATEX_length($elementdata);
1.166 sakharuk 2227: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
1.206 sakharuk 2228: my @words=split(/ /,$elementdata);
2229: foreach my $word (@words) {
2230: my $lengthword=2.5*&LATEX_length($word);
2231: if ($min_length<$lengthword) {$min_length=$lengthword;}
2232: }
1.166 sakharuk 2233: }
2234: } else {
1.206 sakharuk 2235: $current_length=2.5*&LATEX_length($data);
2236: my @words=split(/ /,$data);
2237: foreach my $word (@words) {
1.228 sakharuk 2238: my $lengthword=2*&LATEX_length($word);
1.206 sakharuk 2239: if ($min_length<$lengthword) {$min_length=$lengthword;}
2240: }
1.166 sakharuk 2241: }
1.206 sakharuk 2242: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2243: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2244: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2245: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
1.159 sakharuk 2246: }
2247: }
2248: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
2249: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2250: }
1.206 sakharuk 2251: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
1.159 sakharuk 2252: return'';
2253: }
2254:
1.122 albertel 2255: sub end_td {
1.126 sakharuk 2256: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 2257: my $currentstring = '';
2258: if ($target eq 'web') {
2259: $currentstring = $token->[2];
2260: } elsif ($target eq 'tex') {
1.160 sakharuk 2261: $Apache::londefdef::TD_redirection =0;
1.159 sakharuk 2262: &end_td_tex($parstack,$parser,$safeeval);
1.122 albertel 2263: }
2264: return $currentstring;
2265: }
2266:
1.166 sakharuk 2267: #-- <th> tag (end tag optional)
1.122 albertel 2268: sub start_th {
2269: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2270: my $currentstring = '';
2271: if ($target eq 'web') {
2272: $currentstring = $token->[4];
2273: } elsif ($target eq 'tex') {
1.230 sakharuk 2274: $Apache::londefdef::TD_redirection = 1;
2275: &tagg_check('tr','th',$tagstack,$parstack,$parser,$safeeval);
1.122 albertel 2276: }
2277: return $currentstring;
1.130 sakharuk 2278: }
1.230 sakharuk 2279:
2280: sub tagg_check {
2281: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
2282: my @ar=@$parstack;
2283: for (my $i=$#ar-1;$i>=0;$i--) {
2284: if (lc($$tagstack[$i]) eq $good_tag) {
2285: &start_th_tex($parstack,$parser,$safeeval);
2286: last;
2287: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2288: splice @ar, $i+1;
2289: &end_th_tex(\@ar,$parser,$safeeval);
2290: &start_th_tex($parstack,$parser,$safeeval);
2291: last;
2292: }
2293: }
2294: return '';
2295: }
2296:
2297: sub start_th_tex {
2298: my ($parstack,$parser,$safeeval) = @_;
2299: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2300: if ($alignchar eq '') {
2301: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
2302: }
2303: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
2304: $Apache::londefdef::table[-1]{'counter_columns'}++;
2305: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2306: if (defined $TeXwidth) {
2307: my $current_length=&recalc($TeXwidth);
2308: $current_length=~/(\d+\.?\d*)/;
2309: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2310: }
2311: &Apache::lonxml::startredirection();
2312: return '';
2313: }
2314:
2315: sub end_th_tex {
2316: my ($parstack,$parser,$safeeval) = @_;
2317: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2318: my $data=&Apache::lonxml::endredirection();
2319: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2320: if (defined $TeXwidth) {
2321: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2322: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2323: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2324: } else {
2325: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2326: my $garbage_data=$data;
2327: my $fwidth=0;
2328: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2329: my $current_length=&recalc($1);
2330: $current_length=~/(\d+\.?\d*)/;
2331: if ($fwidth<$1) {$fwidth=$1;}
2332: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2333: }
2334: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2335: my $current_length=$1;
2336: if ($fwidth<$current_length) {$fwidth=$current_length;}
2337: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2338: }
2339: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2340: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2341: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2342: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2343: } else {
2344: $data=~s/^\s+(\S.*)/$1/;
2345: $data=~s/(.*\S)\s+$/$1/;
2346: $data=~s/(\s)+/$1/;
2347: my ($current_length,$min_length)=(0,0);
2348: if ($data=~/\\vskip/) {
2349: my $newdata=$data;
2350: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2351: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2352: foreach my $elementdata (@newdata) {
2353: my $lengthnewdata=2.5*&LATEX_length($elementdata);
2354: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
2355: my @words=split(/ /,$elementdata);
2356: foreach my $word (@words) {
2357: my $lengthword=2.5*&LATEX_length($word);
2358: if ($min_length<$lengthword) {$min_length=$lengthword;}
2359: }
2360: }
2361: } else {
2362: $current_length=2.5*&LATEX_length($data);
2363: my @words=split(/ /,$data);
2364: foreach my $word (@words) {
2365: my $lengthword=2*&LATEX_length($word);
2366: if ($min_length<$lengthword) {$min_length=$lengthword;}
2367: }
2368: }
2369: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2370: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2371: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2372: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
2373: }
2374: }
2375: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
2376: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2377: }
2378: #make data bold
2379: $data='\textbf{'.$data.'}';
2380: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
2381: return'';
2382: }
2383:
1.122 albertel 2384: sub end_th {
1.130 sakharuk 2385: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 2386: my $currentstring = '';
2387: if ($target eq 'web') {
2388: $currentstring = $token->[2];
2389: } elsif ($target eq 'tex') {
1.230 sakharuk 2390: $Apache::londefdef::TD_redirection =0;
2391: &end_th_tex($parstack,$parser,$safeeval);
1.122 albertel 2392: }
2393: return $currentstring;
2394: }
1.230 sakharuk 2395:
1.181 sakharuk 2396: #-- <img> tag (end tag forbidden)
1.122 albertel 2397: sub start_img {
2398: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2399: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,
2400: undef,1);
1.189 albertel 2401: if (not $src and ($target eq 'web' or $target eq 'tex')) {
2402: my $inside = &Apache::lonxml::get_all_text("/img",$parser);
2403: return '';
2404: }
1.122 albertel 2405: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$src;
2406: my $currentstring = '';
2407: my $scaling = .3;
2408: if ($target eq 'web') {
2409: if ($ENV{'browser.imagesuppress'} ne 'on') {
1.158 sakharuk 2410: $currentstring.= $token->[4];
1.122 albertel 2411: } else {
2412: my $alttag= &Apache::lonxml::get_param
2413: ('alt',$parstack,$safeeval,undef,1);
2414: unless ($alttag) {
2415: $alttag=&Apache::lonmeta::alttag
2416: ($Apache::lonxml::pwd[-1],$src);
1.51 sakharuk 2417: }
1.158 sakharuk 2418: $currentstring.='[IMAGE: '.$alttag.']';
1.1 sakharuk 2419: }
1.122 albertel 2420: } elsif ($target eq 'tex') {
2421: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.213 sakharuk 2422: #if uploaded restore the path
1.214 sakharuk 2423: if ($src=~/^\/uploaded\/([^\/]+)\/([^\/]+)\/simplepage\/([^\/]+)$/) {
2424: $src=&Apache::loncommon::propath($1,$2).'/userfiles/simplepage/'.$3;
1.215 sakharuk 2425: } elsif ($src=~/^\/uploaded\/([^\/]+)\/([^\/]+)\/aboutme\/([^\/]+)$/) {
2426: $src=&Apache::loncommon::propath($1,$2).'/userfiles/aboutme/'.$3;
1.213 sakharuk 2427: }
1.122 albertel 2428: #if original gif/jpg/png file exist do following:
1.192 sakharuk 2429: if (-e $src) {
1.197 sakharuk 2430: #what is the image size?
2431: my $width_param=&image_size($src,$scaling,$parstack,$safeeval);
2432: my ($file,$path)=&file_path($src);
1.122 albertel 2433: my $newsrc = $src;
2434: $newsrc =~ s/\.(gif|jpg|png)$/.eps/i;
2435: $file=~s/\.(gif|jpg|png)$/.eps/i;
2436: #where can we find the picture?
2437: if (-e $newsrc) {
2438: #eps counterpart for image exist
2439: if ($path) {
2440: $currentstring .= '\vskip 1 mm \noindent\graphicspath{{'.$path.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
1.51 sakharuk 2441: }
1.122 albertel 2442: } else {
2443: #there is no eps counterpart for image - check for ps one
2444: $newsrc =~ s/\.eps$/\.ps/;
2445: if (-e $newsrc) {
2446: #ps counterpart for image exist
2447: $file =~ s/\.eps$/\.ps/;
2448: if ($path) {
2449: $currentstring .= '\vskip 1 mm \noindent\graphicspath{{'.$path.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
2450: }
1.78 sakharuk 2451: } else {
1.195 sakharuk 2452: #care about eps dynamical generation
2453: $currentstring.='\vskip 1 mm '.&eps_generation($src,$file,$width_param);
1.122 albertel 2454: }
2455: }
2456: } else {
2457: #original image file doesn't exist so check the alt attribute
2458: my $alt =
2459: &Apache::lonxml::get_param('alt',$parstack,$safeeval,undef,1);
2460: unless ($alt) {
2461: $alt=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
2462: }
2463:
2464: if ($alt) {
2465: $currentstring .= ' '.$alt.' ';
2466: } else {
2467: #<allow> tag will care about replication
1.59 sakharuk 2468: }
2469: }
1.186 albertel 2470: } elsif ($target eq 'edit') {
2471: $currentstring .=&Apache::edit::tag_start($target,$token);
2472: $currentstring .=&Apache::edit::text_arg('Image Url:','src',$token,70).
2473: &Apache::edit::browse('src',undef,'alt').' '.
2474: &Apache::edit::search('src',undef,'alt').'<br />';
2475: $currentstring .=&Apache::edit::text_arg('Description:','alt',$token,70).'<br />';
2476: $currentstring .=&Apache::edit::text_arg('width (pixel):','width',$token,5);
2477: $currentstring .=&Apache::edit::text_arg('height (pixel):','height',$token,5).'<br />';
2478: $currentstring .=&Apache::edit::text_arg('TeXwidth (mm):','TeXwidth',$token,5);
2479: $currentstring .=&Apache::edit::text_arg('TeXheight (mm):','TeXheight',$token,5);
2480: $currentstring .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2481: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval);
2482: my $alt=&Apache::lonxml::get_param('alt',$parstack,$safeeval);
2483: my $width=&Apache::lonxml::get_param('width',$parstack,$safeeval);
2484: my $height=&Apache::lonxml::get_param('height',$parstack,$safeeval);
2485: $currentstring .= '<img src="'.$src.'" alt="'.$alt.'" ';
2486: if ($width) { $currentstring.=' width="'.$width.'" '; }
2487: if ($height) { $currentstring.=' height="'.$height.'" '; }
2488: $currentstring .= ' />';
2489: } elsif ($target eq 'modified') {
1.210 albertel 2490: my ($osrc,$owidth,$oheight)=
2491: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2492: my $ctag=&Apache::edit::get_new_args($token,$parstack,
2493: $safeeval,'src','alt',
2494: 'TeXwidth','TeXheight',
2495: 'width','height');
2496: my ($nsrc,$nwidth,$nheight)=
2497: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2498: my $loc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$nsrc);
2499: &image_replication($loc);
2500: my ($iwidth,$iheight);
2501: if (-e $loc) {
2502: my $image = Image::Magick->new;
2503: $image->Read($loc);
2504: ($iwidth, $iheight) = ($image->Get('width'),
2505: $image->Get('height'));
2506: }
2507: if ($osrc ne $nsrc || (!$nwidth && !$nheight)) {
2508: # changed image or no size specified,
2509: # if they didn't explicitly change the
2510: # width or height use the ones from the image
2511: if ($iwidth && $iheight) {
2512: if ($owidth == $nwidth || (!$nwidth && !$nheight)) {
2513: $token->[2]{'width'} = $iwidth;$ctag=1;
2514: }
2515: if ($oheight == $nheight || (!$nwidth && !$nheight)) {
2516: $token->[2]{'height'}=$iheight;$ctag=1;
1.186 albertel 2517: }
2518: }
2519: }
1.210 albertel 2520: my ($cwidth,$cheight)=($token->[2]{'width'},$token->[2]{'height'});
2521: # if we don't have a width or height
2522: if ($iwidth && $cwidth && !$cheight) {
2523: $token->[2]{'height'}=int(($cwidth/$iwidth)*$iheight);$ctag=1;
2524: }
2525: if ($iheight && $cheight && !$cwidth) {
2526: $token->[2]{'width'}=int(($cheight/$iheight)*$iwidth);$ctag=1;
2527: }
2528: if ($ctag) {$currentstring=&Apache::edit::rebuild_tag($token);}
1.122 albertel 2529: }
2530: return $currentstring;
2531: }
2532:
2533: sub end_img {
2534: my ($target,$token) = @_;
2535: my $currentstring = '';
2536: if ($target eq 'web') {
2537: $currentstring = $token->[2];
2538: } elsif ($target eq 'tex') {
2539: $currentstring = '';
2540: }
2541: return $currentstring;
2542: }
2543:
1.181 sakharuk 2544: #-- <applet> tag (end tag required)
1.122 albertel 2545: sub start_applet {
2546: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2547:
2548: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,undef,1);
2549: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$code;
2550:
2551: my $archive=&Apache::lonxml::get_param('archive',$parstack,$safeeval,
2552: undef,1);
2553: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$archive;
2554:
2555: my $currentstring = '';
2556: if ($target eq 'web') {
2557: if ($ENV{'browser.appletsuppress'} ne 'on') {
2558: $currentstring = $token->[4];
2559: } else {
2560: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
2561: $safeeval,undef,1);
2562: unless ($alttag) {
2563: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2564: $code);
1.44 sakharuk 2565: }
1.122 albertel 2566: $currentstring='[APPLET: '.$alttag.']';
1.1 sakharuk 2567: }
1.122 albertel 2568: } elsif ($target eq 'tex') {
1.177 albertel 2569: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
2570: $safeeval,undef,1);
2571: unless ($alttag) {
2572: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,
2573: undef,1);
2574: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2575: $code);
1.175 sakharuk 2576: }
1.177 albertel 2577: $currentstring.='\begin{center} \fbox{Java Applet: '.$alttag.
2578: '.}\end{center}';
1.122 albertel 2579: }
2580: return $currentstring;
2581: }
2582:
2583: sub end_applet {
2584: my ($target,$token) = @_;
2585: my $currentstring = '';
2586: if ($target eq 'web') {
2587: $currentstring = $token->[2];
2588: } elsif ($target eq 'tex') {
2589: }
2590: return $currentstring;
2591: }
2592:
1.181 sakharuk 2593: #-- <embed> tag (end tag optional/required)
1.122 albertel 2594: sub start_embed {
2595: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2596: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2597: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$src;
2598: my $currentstring = '';
2599: if ($target eq 'web') {
2600: if ($ENV{'browser.embedsuppress'} ne 'on') {
2601: $currentstring = $token->[4];
2602: } else {
2603: my $alttag=&Apache::lonxml::get_param
2604: ('alt',$parstack,$safeeval,undef,1);
2605: unless ($alttag) {
2606: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
1.42 albertel 2607: }
1.122 albertel 2608: $currentstring='[EMBED: '.$alttag.']';
1.10 www 2609: }
1.122 albertel 2610: } elsif ($target eq 'tex') {
2611: }
2612: return $currentstring;
2613: }
2614:
2615: sub end_embed {
2616: my ($target,$token) = @_;
2617: my $currentstring = '';
2618: if ($target eq 'web') {
2619: $currentstring = $token->[2];
1.175 sakharuk 2620: } elsif ($target eq 'tex') {
1.122 albertel 2621: }
2622: return $currentstring;
2623: }
2624:
1.181 sakharuk 2625: #-- <param> tag (end tag forbidden)
1.122 albertel 2626: sub start_param {
2627: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2628: if (&Apache::lonxml::get_param
2629: ('name',$parstack,$safeeval,undef,1)=~/^cabbase$/i) {
2630: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
2631: &Apache::lonxml::get_param('value',$parstack,$safeeval,undef,1);
2632: }
2633: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
2634: &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2635: my $currentstring = '';
2636: if ($target eq 'web') {
2637: $currentstring = $token->[4];
2638: } elsif ($target eq 'tex') {
2639: }
2640: return $currentstring;
2641: }
2642:
2643: sub end_param {
2644: my ($target,$token) = @_;
2645: my $currentstring = '';
2646: if ($target eq 'web') {
2647: $currentstring = $token->[2];
2648: } elsif ($target eq 'tex') {
2649: }
2650: return $currentstring;
2651: }
2652:
2653: #-- <allow> tag
2654: sub start_allow {
2655: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2656: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2657: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.138 www 2658: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
2659: &Apache::lonnet::clutter($src);
1.122 albertel 2660: &image_replication($src);
2661: my $result;
2662: if ($target eq 'edit') {
2663: $result .=&Apache::edit::tag_start($target,$token);
2664: $result .=&Apache::edit::text_arg('File Spec:','src',$token,70);
2665: $result .=&Apache::edit::end_row();#.&Apache::edit::start_spanning_row();
2666: } elsif ($target eq 'modified') {
2667: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2668: $safeeval,'src');
2669: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2670: }
2671: return $result;
2672: }
2673:
2674: sub end_allow {
2675: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2676: if ( $target eq 'edit') { return (&Apache::edit::end_table()); }
2677: return '';
2678: }
1.119 www 2679:
1.181 sakharuk 2680: #-- Frames (end tag required)
2681: #-- <frameset>
1.122 albertel 2682: sub start_frameset {
2683: my ($target,$token) = @_;
2684: my $currentstring = '';
2685: if ($target eq 'web') {
1.180 albertel 2686: if (!$Apache::lonxml::registered &&
2687: $ENV{'request.state'} eq 'published') {
1.122 albertel 2688: $currentstring.='<head>'.
2689: &Apache::lonmenu::registerurl(undef,$target).'</head>';
1.10 www 2690: }
1.133 www 2691: my $onLoad='';
2692: foreach my $key (keys(%{$token->[2]})) {
2693: if ($key =~ /^onload$/i) {
2694: $onLoad.=$token->[2]->{$key}.';';
2695: delete($token->[2]->{$key});
2696: }
2697: }
2698: $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad;
2699: my $onUnload='';
2700: foreach my $key (keys(%{$token->[2]})) {
2701: if ($key =~ /^onunload$/i) {
2702: $onUnload.=$token->[2]->{$key}.';';
2703: delete($token->[2]->{$key});
2704: }
2705: }
2706: $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().
2707: ';'.$onUnload;
2708:
2709: $currentstring .= '<'.$token->[1];
2710: foreach (keys %{$token->[2]}) {
2711: $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
2712: }
2713: $currentstring.='>';
1.122 albertel 2714: }
2715: return $currentstring;
2716: }
2717:
2718: sub end_frameset {
2719: my ($target,$token) = @_;
2720: my $currentstring = '';
2721: if ($target eq 'web') {
2722: $currentstring = $token->[2];
2723: }
2724: return $currentstring;
2725: }
1.162 sakharuk 2726:
1.181 sakharuk 2727: #-- <xmp> (end tag required)
1.162 sakharuk 2728: sub start_xmp {
2729: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2730: my $currentstring = '';
2731: if ($target eq 'web') {
2732: $currentstring .= $token->[4];
2733: } elsif ($target eq 'tex') {
2734: $currentstring .= '\begin{verbatim}';
2735: }
2736: return $currentstring;
2737: }
2738:
2739: sub end_xmp {
2740: my ($target,$token) = @_;
2741: my $currentstring = '';
2742: if ($target eq 'web') {
2743: $currentstring .= $token->[2];
2744: } elsif ($target eq 'tex') {
2745: $currentstring .= '\end{verbatim}';
2746: }
2747: return $currentstring;
2748: }
2749:
1.181 sakharuk 2750: #-- <pre> (end tag required)
1.122 albertel 2751: sub start_pre {
1.126 sakharuk 2752: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 2753: my $currentstring = '';
2754: if ($target eq 'web') {
2755: $currentstring .= $token->[4];
2756: } elsif ($target eq 'tex') {
1.136 sakharuk 2757: $currentstring .= '\begin{verbatim}';
1.122 albertel 2758: }
2759: return $currentstring;
2760: }
2761:
2762: sub end_pre {
2763: my ($target,$token) = @_;
2764: my $currentstring = '';
2765: if ($target eq 'web') {
2766: $currentstring .= $token->[2];
2767: } elsif ($target eq 'tex') {
1.136 sakharuk 2768: $currentstring .= '\end{verbatim}';
1.122 albertel 2769: }
2770: return $currentstring;
2771: }
2772:
2773: #-- <insert>
2774: sub start_insert {
2775: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2776: my $currentstring = '';
2777: if ($target eq 'web') {
2778: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
2779: $currentstring .= '<b>'.$display.'</b>';;
2780: }
2781: return $currentstring;
2782: }
2783:
2784: sub end_insert {
2785: my ($target,$token) = @_;
2786: my $currentstring = '';
2787: if ($target eq 'web') {
2788: $currentstring .= '';
2789: }
2790: return $currentstring;
2791: }
2792:
2793: #-- <externallink>
2794: sub start_externallink {
2795: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2796: my $currentstring = '';
2797: if ($target eq 'web') {
2798: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
2799: $currentstring .= '<b>'.$display.'</b>';;
2800: }
2801: return $currentstring;
2802: }
2803:
2804: sub end_externallink {
2805: my ($target,$token) = @_;
2806: my $currentstring = '';
2807: if ($target eq 'web') {
2808: $currentstring .= '';
2809: }
2810: return $currentstring;
2811: }
2812:
2813: #-- <blankspace heigth="">
2814: sub start_blankspace {
2815: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2816: my $currentstring = '';
2817: if ($target eq 'tex') {
2818: my $howmuch = &Apache::lonxml::get_param('heigth',$parstack,$safeeval,undef,1);
2819: $currentstring .= '\vskip '.$howmuch.' ';
2820: }
2821: return $currentstring;
2822: }
2823:
2824: sub end_blankspace {
2825: my ($target,$token) = @_;
2826: my $currentstring = '';
2827: if ($target eq 'tex') {
2828: $currentstring .= '';
2829: }
2830: return $currentstring;
2831: }
2832:
1.181 sakharuk 2833: #-- <abbr> tag (end tag required)
1.122 albertel 2834: sub start_abbr {
2835: my ($target,$token) = @_;
2836: my $currentstring = '';
2837: if ($target eq 'web') {
2838: $currentstring = $token->[4];
2839: }
2840: return $currentstring;
2841: }
2842:
2843: sub end_abbr {
2844: my ($target,$token) = @_;
2845: my $currentstring = '';
2846: if ($target eq 'web') {
2847: $currentstring = $token->[2];
2848: }
2849: return $currentstring;
2850: }
2851:
1.181 sakharuk 2852: #-- <acronym> tag (end tag required)
1.122 albertel 2853: sub start_acronym {
2854: my ($target,$token) = @_;
2855: my $currentstring = '';
2856: if ($target eq 'web') {
2857: $currentstring = $token->[4];
2858: }
2859: return $currentstring;
2860: }
2861:
2862: sub end_acronym {
2863: my ($target,$token) = @_;
2864: my $currentstring = '';
2865: if ($target eq 'web') {
2866: $currentstring = $token->[2];
2867: }
2868: return $currentstring;
2869: }
2870:
1.181 sakharuk 2871: #-- <area> tag (end tag forbidden)
1.122 albertel 2872: sub start_area {
2873: my ($target,$token) = @_;
2874: my $currentstring = '';
2875: if ($target eq 'web') {
2876: $currentstring = $token->[4];
2877: }
2878: return $currentstring;
2879: }
2880:
2881: sub end_area {
2882: my ($target,$token) = @_;
2883: my $currentstring = '';
2884: if ($target eq 'web') {
2885: $currentstring = $token->[2];
2886: }
2887: return $currentstring;
2888: }
2889:
1.181 sakharuk 2890: #-- <base> tag (end tag forbidden)
1.122 albertel 2891: sub start_base {
2892: my ($target,$token) = @_;
2893: my $currentstring = '';
2894: if ($target eq 'web') {
2895: $currentstring = $token->[4];
1.161 sakharuk 2896: }
1.122 albertel 2897: return $currentstring;
2898: }
2899:
2900: sub end_base {
2901: my ($target,$token) = @_;
2902: my $currentstring = '';
2903: if ($target eq 'web') {
2904: $currentstring = $token->[2];
2905: }
2906: return $currentstring;
2907: }
2908:
1.181 sakharuk 2909: #-- <bdo> tag (end tag required)
1.122 albertel 2910: sub start_bdo {
2911: my ($target,$token) = @_;
2912: my $currentstring = '';
2913: if ($target eq 'web') {
2914: $currentstring = $token->[4];
2915: }
2916: return $currentstring;
2917: }
2918:
2919: sub end_bdo {
2920: my ($target,$token) = @_;
2921: my $currentstring = '';
2922: if ($target eq 'web') {
2923: $currentstring = $token->[2];
2924: }
2925: return $currentstring;
2926: }
2927:
1.181 sakharuk 2928: #-- <bgsound> tag (end tag optional)
1.122 albertel 2929: sub start_bgsound {
2930: my ($target,$token) = @_;
2931: my $currentstring = '';
2932: if ($target eq 'web') {
2933: $currentstring = $token->[4];
2934: }
2935: return $currentstring;
2936: }
2937:
2938: sub end_bgsound {
2939: my ($target,$token) = @_;
2940: my $currentstring = '';
2941: if ($target eq 'web') {
2942: $currentstring = $token->[2];
2943: }
2944: return $currentstring;
2945: }
2946:
1.181 sakharuk 2947: #-- <blink> tag (end tag required)
1.122 albertel 2948: sub start_blink {
2949: my ($target,$token) = @_;
2950: my $currentstring = '';
2951: if ($target eq 'web') {
2952: $currentstring = $token->[4];
2953: }
2954: return $currentstring;
2955: }
2956:
2957: sub end_blink {
2958: my ($target,$token) = @_;
2959: my $currentstring = '';
2960: if ($target eq 'web') {
2961: $currentstring = $token->[2];
2962: }
2963: return $currentstring;
2964: }
2965:
1.181 sakharuk 2966: #-- <blockquote> tag (end tag required)
1.122 albertel 2967: sub start_blockquote {
2968: my ($target,$token) = @_;
2969: my $currentstring = '';
2970: if ($target eq 'web') {
2971: $currentstring = $token->[4];
2972: }
2973: return $currentstring;
2974: }
2975:
2976: sub end_blockquote {
2977: my ($target,$token) = @_;
2978: my $currentstring = '';
2979: if ($target eq 'web') {
2980: $currentstring = $token->[2];
2981: }
2982: return $currentstring;
2983: }
2984:
1.181 sakharuk 2985: #-- <button> tag (end tag required)
1.122 albertel 2986: sub start_button {
2987: my ($target,$token) = @_;
2988: my $currentstring = '';
2989: if ($target eq 'web') {
2990: $currentstring = $token->[4];
2991: }
2992: return $currentstring;
2993: }
2994:
2995: sub end_button {
2996: my ($target,$token) = @_;
2997: my $currentstring = '';
2998: if ($target eq 'web') {
2999: $currentstring = $token->[2];
3000: }
3001: return $currentstring;
3002: }
3003:
1.181 sakharuk 3004: #-- <caption> tag (end tag required)
1.122 albertel 3005: sub start_caption {
3006: my ($target,$token) = @_;
3007: my $currentstring = '';
3008: if ($target eq 'web') {
3009: $currentstring = $token->[4];
3010: }
3011: return $currentstring;
3012: }
3013:
3014: sub end_caption {
3015: my ($target,$token) = @_;
3016: my $currentstring = '';
3017: if ($target eq 'web') {
3018: $currentstring = $token->[2];
3019: }
3020: return $currentstring;
3021: }
3022:
1.181 sakharuk 3023: #-- <col> tag (end tag forbdden)
1.122 albertel 3024: sub start_col {
3025: my ($target,$token) = @_;
3026: my $currentstring = '';
3027: if ($target eq 'web') {
3028: $currentstring = $token->[4];
3029: }
3030: return $currentstring;
3031: }
3032:
3033: sub end_col {
3034: my ($target,$token) = @_;
3035: my $currentstring = '';
3036: if ($target eq 'web') {
3037: $currentstring = $token->[2];
3038: }
3039: return $currentstring;
3040: }
3041:
1.181 sakharuk 3042: #-- <colgroup> tag (end tag optional)
1.122 albertel 3043: sub start_colgroup {
3044: my ($target,$token) = @_;
3045: my $currentstring = '';
3046: if ($target eq 'web') {
3047: $currentstring = $token->[4];
3048: }
3049: return $currentstring;
3050: }
3051:
3052: sub end_colgroup {
3053: my ($target,$token) = @_;
3054: my $currentstring = '';
3055: if ($target eq 'web') {
3056: $currentstring = $token->[2];
3057: }
3058: return $currentstring;
3059: }
3060:
1.181 sakharuk 3061: #-- <del> tag (end tag required)
1.122 albertel 3062: sub start_del {
3063: my ($target,$token) = @_;
3064: my $currentstring = '';
3065: if ($target eq 'web') {
3066: $currentstring = $token->[4];
3067: }
3068: return $currentstring;
3069: }
3070:
3071: sub end_del {
3072: my ($target,$token) = @_;
3073: my $currentstring = '';
3074: if ($target eq 'web') {
3075: $currentstring = $token->[2];
3076: }
3077: return $currentstring;
3078: }
3079:
1.181 sakharuk 3080: #-- <fieldset> tag (end tag required)
1.122 albertel 3081: sub start_fieldset {
3082: my ($target,$token) = @_;
3083: my $currentstring = '';
3084: if ($target eq 'web') {
3085: $currentstring = $token->[4];
3086: }
3087: return $currentstring;
3088: }
3089:
3090: sub end_fieldset {
3091: my ($target,$token) = @_;
3092: my $currentstring = '';
3093: if ($target eq 'web') {
3094: $currentstring = $token->[2];
3095: }
3096: return $currentstring;
3097: }
3098:
1.181 sakharuk 3099: #-- <frame> tag (end tag forbidden)
1.122 albertel 3100: sub start_frame {
3101: my ($target,$token) = @_;
3102: my $currentstring = '';
3103: if ($target eq 'web') {
3104: $currentstring = $token->[4];
3105: }
3106: return $currentstring;
3107: }
3108:
3109: sub end_frame {
3110: my ($target,$token) = @_;
3111: my $currentstring = '';
3112: if ($target eq 'web') {
3113: $currentstring = $token->[2];
3114: }
3115: return $currentstring;
3116: }
3117:
1.181 sakharuk 3118: #-- <iframe> tag (end tag required)
1.122 albertel 3119: sub start_iframe {
3120: my ($target,$token) = @_;
3121: my $currentstring = '';
3122: if ($target eq 'web') {
3123: $currentstring = $token->[4];
3124: }
3125: return $currentstring;
3126: }
3127:
3128: sub end_iframe {
3129: my ($target,$token) = @_;
3130: my $currentstring = '';
3131: if ($target eq 'web') {
3132: $currentstring = $token->[2];
3133: }
3134: return $currentstring;
3135: }
3136:
1.181 sakharuk 3137: #-- <ins> tag (end tag required)
1.122 albertel 3138: sub start_ins {
3139: my ($target,$token) = @_;
3140: my $currentstring = '';
3141: if ($target eq 'web') {
3142: $currentstring = $token->[4];
3143: }
3144: return $currentstring;
3145: }
3146:
3147: sub end_ins {
3148: my ($target,$token) = @_;
3149: my $currentstring = '';
3150: if ($target eq 'web') {
3151: $currentstring = $token->[2];
3152: }
3153: return $currentstring;
3154: }
3155:
1.181 sakharuk 3156: #-- <isindex> tag (end tag forbidden)
1.122 albertel 3157: sub start_isindex {
3158: my ($target,$token) = @_;
3159: my $currentstring = '';
3160: if ($target eq 'web') {
3161: $currentstring = $token->[4];
3162: }
3163: return $currentstring;
3164: }
3165:
3166: sub end_isindex {
3167: my ($target,$token) = @_;
3168: my $currentstring = '';
3169: if ($target eq 'web') {
3170: $currentstring = $token->[2];
3171: }
3172: return $currentstring;
3173: }
3174:
1.181 sakharuk 3175: #-- <keygen> tag (end tag forbidden)
1.122 albertel 3176: sub start_keygen {
3177: my ($target,$token) = @_;
3178: my $currentstring = '';
3179: if ($target eq 'web') {
3180: $currentstring = $token->[4];
3181: }
3182: return $currentstring;
3183: }
3184:
3185: sub end_keygen {
3186: my ($target,$token) = @_;
3187: my $currentstring = '';
3188: if ($target eq 'web') {
3189: $currentstring = $token->[2];
3190: }
3191: return $currentstring;
3192: }
3193:
3194: #-- <label> tag
3195: sub start_label {
3196: my ($target,$token) = @_;
3197: my $currentstring = '';
3198: if ($target eq 'web') {
3199: $currentstring = $token->[4];
3200: }
3201: return $currentstring;
3202: }
3203:
3204: sub end_label {
3205: my ($target,$token) = @_;
3206: my $currentstring = '';
3207: if ($target eq 'web') {
3208: $currentstring = $token->[2];
3209: }
3210: return $currentstring;
3211: }
3212:
1.181 sakharuk 3213: #-- <layer> tag (end tag required)
1.122 albertel 3214: sub start_layer {
3215: my ($target,$token) = @_;
3216: my $currentstring = '';
3217: if ($target eq 'web') {
3218: $currentstring = $token->[4];
3219: }
3220: return $currentstring;
3221: }
3222:
3223: sub end_layer {
3224: my ($target,$token) = @_;
3225: my $currentstring = '';
3226: if ($target eq 'web') {
3227: $currentstring = $token->[2];
3228: }
3229: return $currentstring;
3230: }
3231:
1.181 sakharuk 3232: #-- <legend> tag (end tag required)
1.122 albertel 3233: sub start_legend {
3234: my ($target,$token) = @_;
3235: my $currentstring = '';
3236: if ($target eq 'web') {
3237: $currentstring = $token->[4];
3238: }
3239: return $currentstring;
3240: }
3241:
3242: sub end_legend {
3243: my ($target,$token) = @_;
3244: my $currentstring = '';
3245: if ($target eq 'web') {
3246: $currentstring = $token->[2];
3247: }
3248: return $currentstring;
3249: }
3250:
1.181 sakharuk 3251: #-- <link> tag (end tag forbidden)
1.122 albertel 3252: sub start_link {
3253: my ($target,$token) = @_;
3254: my $currentstring = '';
3255: if ($target eq 'web') {
3256: $currentstring = $token->[4];
3257: }
3258: return $currentstring;
3259: }
3260:
3261: sub end_link {
3262: my ($target,$token) = @_;
3263: my $currentstring = '';
3264: if ($target eq 'web') {
3265: $currentstring = $token->[2];
3266: }
3267: return $currentstring;
3268: }
3269:
1.181 sakharuk 3270: #-- <marquee> tag (end tag optional)
1.122 albertel 3271: sub start_marquee {
3272: my ($target,$token) = @_;
3273: my $currentstring = '';
3274: if ($target eq 'web') {
3275: $currentstring = $token->[4];
3276: }
3277: return $currentstring;
3278: }
3279:
3280: sub end_marquee {
3281: my ($target,$token) = @_;
3282: my $currentstring = '';
3283: if ($target eq 'web') {
3284: $currentstring = $token->[2];
3285: }
3286: return $currentstring;
3287: }
3288:
1.179 sakharuk 3289: #-- <multicol> tag (end tag required)
3290: sub start_multicol {
1.122 albertel 3291: my ($target,$token) = @_;
3292: my $currentstring = '';
3293: if ($target eq 'web') {
3294: $currentstring = $token->[4];
3295: }
3296: return $currentstring;
3297: }
3298:
1.179 sakharuk 3299: sub end_multicol {
1.122 albertel 3300: my ($target,$token) = @_;
3301: my $currentstring = '';
3302: if ($target eq 'web') {
3303: $currentstring = $token->[2];
3304: }
3305: return $currentstring;
3306: }
3307:
1.179 sakharuk 3308: #-- <nobr> tag (end tag required)
1.122 albertel 3309: sub start_nobr {
3310: my ($target,$token) = @_;
3311: my $currentstring = '';
3312: if ($target eq 'web') {
3313: $currentstring = $token->[4];
1.179 sakharuk 3314: } elsif ($target eq 'tex') {
3315: $currentstring='\mbox{';
3316: }
1.122 albertel 3317: return $currentstring;
3318: }
3319:
3320: sub end_nobr {
3321: my ($target,$token) = @_;
3322: my $currentstring = '';
3323: if ($target eq 'web') {
3324: $currentstring = $token->[2];
1.179 sakharuk 3325: } elsif ($target eq 'tex') {
3326: $currentstring='}';
3327: }
1.122 albertel 3328: return $currentstring;
3329: }
3330:
1.179 sakharuk 3331: #-- <noembed> tag (end tag required)
1.122 albertel 3332: sub start_noembed {
3333: my ($target,$token) = @_;
3334: my $currentstring = '';
3335: if ($target eq 'web') {
3336: $currentstring = $token->[4];
3337: }
3338: return $currentstring;
3339: }
3340:
3341: sub end_noembed {
3342: my ($target,$token) = @_;
3343: my $currentstring = '';
3344: if ($target eq 'web') {
3345: $currentstring = $token->[2];
3346: }
3347: return $currentstring;
3348: }
3349:
1.179 sakharuk 3350: #-- <noframes> tag (end tag required)
1.122 albertel 3351: sub start_noframes {
3352: my ($target,$token) = @_;
3353: my $currentstring = '';
3354: if ($target eq 'web') {
3355: $currentstring = $token->[4];
3356: }
3357: return $currentstring;
3358: }
3359:
3360: sub end_noframes {
3361: my ($target,$token) = @_;
3362: my $currentstring = '';
3363: if ($target eq 'web') {
3364: $currentstring = $token->[2];
3365: }
3366: return $currentstring;
3367: }
3368:
1.179 sakharuk 3369: #-- <nolayer> tag (end tag required)
1.122 albertel 3370: sub start_nolayer {
3371: my ($target,$token) = @_;
3372: my $currentstring = '';
3373: if ($target eq 'web') {
3374: $currentstring = $token->[4];
3375: }
3376: return $currentstring;
3377: }
3378:
3379: sub end_nolayer {
3380: my ($target,$token) = @_;
3381: my $currentstring = '';
3382: if ($target eq 'web') {
3383: $currentstring = $token->[2];
3384: }
3385: return $currentstring;
3386: }
3387:
1.179 sakharuk 3388: #-- <noscript> tag (end tag required)
1.122 albertel 3389: sub start_noscript {
3390: my ($target,$token) = @_;
3391: my $currentstring = '';
3392: if ($target eq 'web') {
3393: $currentstring = $token->[4];
3394: }
3395: return $currentstring;
3396: }
3397:
3398: sub end_noscript {
3399: my ($target,$token) = @_;
3400: my $currentstring = '';
3401: if ($target eq 'web') {
3402: $currentstring = $token->[2];
3403: }
3404: return $currentstring;
3405: }
3406:
1.179 sakharuk 3407: #-- <object> tag (end tag required)
1.122 albertel 3408: sub start_object {
3409: my ($target,$token) = @_;
3410: my $currentstring = '';
3411: if ($target eq 'web') {
3412: $currentstring = $token->[4];
3413: }
3414: return $currentstring;
3415: }
3416:
3417: sub end_object {
3418: my ($target,$token) = @_;
3419: my $currentstring = '';
3420: if ($target eq 'web') {
3421: $currentstring = $token->[2];
3422: }
3423: return $currentstring;
3424: }
3425:
1.179 sakharuk 3426: #-- <optgroup> tag (end tag required)
1.122 albertel 3427: sub start_optgroup {
3428: my ($target,$token) = @_;
3429: my $currentstring = '';
3430: if ($target eq 'web') {
3431: $currentstring = $token->[4];
3432: }
3433: return $currentstring;
3434: }
3435:
3436: sub end_optgroup {
3437: my ($target,$token) = @_;
3438: my $currentstring = '';
3439: if ($target eq 'web') {
3440: $currentstring = $token->[2];
3441: }
3442: return $currentstring;
3443: }
3444:
1.179 sakharuk 3445: #-- <samp> tag (end tag required)
1.122 albertel 3446: sub start_samp {
3447: my ($target,$token) = @_;
3448: my $currentstring = '';
3449: if ($target eq 'web') {
3450: $currentstring = $token->[4];
1.179 sakharuk 3451: } elsif ($target eq 'tex') {
3452: $currentstring='\texttt{';
3453: }
1.122 albertel 3454: return $currentstring;
3455: }
3456:
3457: sub end_samp {
3458: my ($target,$token) = @_;
3459: my $currentstring = '';
3460: if ($target eq 'web') {
3461: $currentstring = $token->[2];
1.179 sakharuk 3462: } elsif ($target eq 'tex') {
3463: $currentstring='}';
3464: }
1.122 albertel 3465: return $currentstring;
3466: }
3467:
3468: #-- <server> tag
3469: sub start_server {
3470: my ($target,$token) = @_;
3471: my $currentstring = '';
3472: if ($target eq 'web') {
3473: $currentstring = $token->[4];
3474: }
3475: return $currentstring;
3476: }
3477:
3478: sub end_server {
3479: my ($target,$token) = @_;
3480: my $currentstring = '';
3481: if ($target eq 'web') {
3482: $currentstring = $token->[2];
3483: }
3484: return $currentstring;
3485: }
3486:
1.179 sakharuk 3487: #-- <spacer> tag (end tag forbidden)
1.122 albertel 3488: sub start_spacer {
3489: my ($target,$token) = @_;
3490: my $currentstring = '';
3491: if ($target eq 'web') {
3492: $currentstring = $token->[4];
3493: }
3494: return $currentstring;
3495: }
3496:
3497: sub end_spacer {
3498: my ($target,$token) = @_;
3499: my $currentstring = '';
3500: if ($target eq 'web') {
3501: $currentstring = $token->[2];
3502: }
3503: return $currentstring;
3504: }
3505:
1.179 sakharuk 3506: #-- <span> tag (end tag required)
1.122 albertel 3507: sub start_span {
3508: my ($target,$token) = @_;
3509: my $currentstring = '';
3510: if ($target eq 'web') {
3511: $currentstring = $token->[4];
3512: }
3513: return $currentstring;
3514: }
3515:
3516: sub end_span {
3517: my ($target,$token) = @_;
3518: my $currentstring = '';
3519: if ($target eq 'web') {
3520: $currentstring = $token->[2];
3521: }
3522: return $currentstring;
3523: }
3524:
1.179 sakharuk 3525: #-- <tbody> tag (end tag optional)
1.122 albertel 3526: sub start_tbody {
3527: my ($target,$token) = @_;
3528: my $currentstring = '';
3529: if ($target eq 'web') {
3530: $currentstring = $token->[4];
3531: }
3532: return $currentstring;
3533: }
3534:
3535: sub end_tbody {
3536: my ($target,$token) = @_;
3537: my $currentstring = '';
3538: if ($target eq 'web') {
3539: $currentstring = $token->[2];
3540: }
3541: return $currentstring;
3542: }
3543:
1.166 sakharuk 3544: #-- <tfoot> tag (end tag optional)
1.122 albertel 3545: sub start_tfoot {
3546: my ($target,$token) = @_;
3547: my $currentstring = '';
3548: if ($target eq 'web') {
3549: $currentstring = $token->[4];
3550: }
3551: return $currentstring;
3552: }
3553:
3554: sub end_tfoot {
3555: my ($target,$token) = @_;
3556: my $currentstring = '';
3557: if ($target eq 'web') {
3558: $currentstring = $token->[2];
3559: }
3560: return $currentstring;
3561: }
3562:
1.166 sakharuk 3563: #-- <thead> tag (end tag optional)
1.122 albertel 3564: sub start_thead {
3565: my ($target,$token) = @_;
3566: my $currentstring = '';
3567: if ($target eq 'web') {
3568: $currentstring = $token->[4];
3569: }
3570: return $currentstring;
3571: }
1.10 www 3572:
1.122 albertel 3573: sub end_thead {
3574: my ($target,$token) = @_;
3575: my $currentstring = '';
3576: if ($target eq 'web') {
3577: $currentstring = $token->[2];
3578: }
3579: return $currentstring;
3580: }
1.119 www 3581:
1.122 albertel 3582: #-- <var> tag
3583: sub start_var {
1.44 sakharuk 3584: my ($target,$token) = @_;
3585: my $currentstring = '';
3586: if ($target eq 'web') {
1.122 albertel 3587: $currentstring = $token->[4];
1.163 sakharuk 3588: } elsif ($target eq 'tex') {
3589: $currentstring = '\textit{';
3590: }
1.44 sakharuk 3591: return $currentstring;
3592: }
1.10 www 3593:
1.122 albertel 3594: sub end_var {
3595: my ($target,$token) = @_;
1.44 sakharuk 3596: my $currentstring = '';
3597: if ($target eq 'web') {
1.163 sakharuk 3598: $currentstring = $token->[2];
3599: } elsif ($target eq 'tex') {
3600: $currentstring = '}';
1.44 sakharuk 3601: }
3602: return $currentstring;
3603: }
1.119 www 3604:
1.163 sakharuk 3605: #-- <wbr> tag (end tag forbidden)
1.122 albertel 3606: sub start_wbr {
3607: my ($target,$token) = @_;
3608: my $currentstring = '';
3609: if ($target eq 'web') {
3610: $currentstring = $token->[4];
3611: }
3612: return $currentstring;
1.98 albertel 3613: }
3614:
1.122 albertel 3615: sub end_wbr {
3616: my ($target,$token) = @_;
3617: my $currentstring = '';
3618: if ($target eq 'web') {
3619: $currentstring = $token->[2];
3620: }
3621: return $currentstring;
1.98 albertel 3622: }
1.134 sakharuk 3623:
3624: #-- <hideweboutput> tag
3625: sub start_hideweboutput {
3626: my ($target,$token) = @_;
3627: if ($target eq 'web') {
3628: &Apache::lonxml::startredirection();
3629: }
3630: return '';
3631: }
3632:
3633: sub end_hideweboutput {
3634: my ($target,$token) = @_;
3635: my $currentstring = '';
3636: if ($target eq 'web') {
3637: $currentstring = &Apache::lonxml::endredirection();
3638: }
3639: return '';
3640: }
3641:
1.94 sakharuk 3642:
3643: sub image_replication {
3644: my $src = shift;
1.187 albertel 3645: if (not -e $src) { &Apache::lonnet::repcopy($src); }
3646: #replicates eps or ps
3647: my $epssrc = my $pssrc = $src;
3648: $epssrc =~ s/\.(gif|jpg|jpeg|png)$/.eps/i;
3649: $pssrc =~ s/\.(gif|jpg|jpeg|png)$/.ps/i;
3650: if (not -e $epssrc && not -e $pssrc) {
3651: my $result=&Apache::lonnet::repcopy($epssrc);
3652: if ($result ne OK) { &Apache::lonnet::repcopy($pssrc); }
1.94 sakharuk 3653: }
3654: return '';
1.195 sakharuk 3655: }
3656:
1.197 sakharuk 3657: sub image_size {
3658: my ($src,$scaling,$parstack,$safeeval)=@_;
3659: #size of image from gif/jpg/jpeg/png
3660: my $image = Image::Magick->new;
3661: my $current_figure = $image->Read($src);
3662: my $width_param = $image->Get('width') * $scaling;;
3663: my $height_param = $image->Get('height') * $scaling;;
3664: undef $image;
3665: #do we have any specified LaTeX size of the picture?
3666: my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval);
3667: my $TeXheight = &Apache::lonxml::get_param('TeXheight',$parstack,$safeeval);
3668: #do we have any specified web size of the picture?
3669: my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval,
3670: undef,1);
3671: if ($TeXwidth ne '') {
3672: if ($TeXwidth=~/(\d+)\s*\%/) {
3673: $width_param = $1*$ENV{'form.textwidth'}/100;
3674: } else {
3675: $width_param = $TeXwidth;
3676: }
3677: } elsif ($TeXheight ne '') {
3678: $width_param = $TeXheight/$height_param*$width_param;
3679: } elsif ($width ne '') {
3680: $width_param = $width*$scaling;
3681: }
3682: if ($width_param > $ENV{'form.textwidth'}) {$width_param =0.95*$ENV{'form.textwidth'}}
3683: return $width_param;
3684: }
3685:
1.195 sakharuk 3686: sub eps_generation {
3687: my ($src,$file,$width_param) = @_;
3688: my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.dat";
3689: my $temp_file = Apache::File->new('>>'.$filename);
3690: print $temp_file "$src\n";
3691: my $newsrc = $src;
3692: $newsrc =~ s/(\.gif|\.jpg|\.jpeg)$/\.eps/i;
3693: $newsrc=~s/\/home\/httpd\/html\/res//;
3694: $newsrc=~s/\/home\/([^\/]*)\/public_html\//\/$1\//;
3695: $newsrc=~s/\/\.\//\//;
3696: $newsrc=~s/\/([^\/]+)\.(ps|eps)/\//;
1.213 sakharuk 3697: if ($newsrc=~/\/home\/httpd\/lonUsers\//) {
3698: $newsrc=~s/\/home\/httpd\/lonUsers//;
3699: $newsrc=~s/\/([^\/]+)\/(\w)\/(\w)\/(\w)\//\/$1\//;
3700: }
1.195 sakharuk 3701: return ' \graphicspath{{/home/httpd/prtspool'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
1.197 sakharuk 3702: }
3703:
3704: sub file_path {
3705: my $src=shift;
3706: my ($file,$path);
3707: if ($src =~ m!(.*)/([^/]*)$!) {
3708: $file = $2;
3709: $path = $1.'/';
3710: }
3711: return $file,$path;
1.126 sakharuk 3712: }
3713:
3714: sub recalc {
3715: my $argument = shift;
3716: if (not $argument=~/(mm|cm|in|pc|pt)/) {return $argument.' mm';}
1.132 sakharuk 3717: $argument=~/\s*(\d+\.?\d*)\s*(mm|cm|in|pc|pt)/;
1.126 sakharuk 3718: my $value=$1;
3719: my $units=$2;
3720: if ($units eq 'cm') {
3721: $value*=10;
3722: } elsif ($units eq 'in') {
3723: $value*=25.4;
3724: } elsif ($units eq 'pc') {
3725: $value*=(25.4*12/72.27);
3726: } elsif ($units eq 'pt') {
3727: $value*=(25.4/72.27);
3728: }
3729: return $value.' mm';
1.94 sakharuk 3730: }
1.184 sakharuk 3731:
3732: sub LATEX_length {
3733: my $garbage=shift;
1.206 sakharuk 3734: $garbage=~s/^\s+$//;
3735: $garbage=~s/^\s+(\S.*)/$1/;#space before
3736: $garbage=~s/(.*\S)\s+$/$1/;#space after
3737: $garbage=~s/(\s)+/$1/;#only one space
3738: $garbage=~s/(\\begin{([^\}]+)}|\\end{([^\}]+)})//g;#remove LaTeX \begin{...} and \end{...}
3739: $garbage=~s/(\$\_\{|\$\_|\$\^{|\$\^|\}\$)//g;#remove $_{,$_,$^{,$^,}$
3740: $garbage=~s/([^\\])\$/$1/g;#$
3741: $garbage=~s/(\\ensuremath\{\_\{|\\ensuremath\{\_|\\ensuremath\{\^{|\\ensuremath\{\^|\})//g;#remove \ensuremath{...}
3742: $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;
1.184 sakharuk 3743: $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;
3744: $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;
3745: $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;
1.206 sakharuk 3746: $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;
3747: $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;
3748: $garbage=~s/(\\hat{([^}]+)}|\\check{([^}]+)}|\\dot{([^}]+)}|\\breve{([^}]+)}|\\acute{([^}]+)}|\\ddot{([^}]+)}|\\grave{([^}]+)}|\\tilde{([^}]+)}|\\mathring{([^}]+)}|\\bar{([^}]+)}|\\vec{([^}]+)})/$1/g;
3749: #remove some other LaTeX command
3750: $garbage=~s|\\(\w+)\\|\\|g;
3751: $garbage=~s|\\(\w+)(\s*)|$2|g;
3752: $garbage=~s|\+|11|g;
1.184 sakharuk 3753: my $value=length($garbage);
3754: return $value;
3755: }
3756:
3757:
3758:
1.94 sakharuk 3759:
1.1 sakharuk 3760: 1;
3761: __END__
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