Annotation of loncom/xml/londefdef.pm, revision 1.319
1.1 sakharuk 1: # The LearningOnline Network with CAPA
2: # Tags Default Definition Module
3: #
1.319 ! albertel 4: # $Id: londefdef.pm,v 1.318 2006/02/04 22:11:42 foxr 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: #
1.1 sakharuk 39:
1.2 albertel 40: package Apache::londefdef;
1.1 sakharuk 41:
1.267 albertel 42: use Apache::lonnet;
1.1 sakharuk 43: use strict;
1.124 sakharuk 44: use Apache::lonxml;
1.57 sakharuk 45: use Apache::File();
1.70 sakharuk 46: use Image::Magick;
1.118 www 47: use Apache::lonmenu();
48: use Apache::lonmeta();
1.187 albertel 49: use Apache::Constants qw(:common);
1.282 foxr 50: use File::Basename;
1.302 foxr 51: # use Data::Dumper;
1.160 sakharuk 52:
1.38 harris41 53: BEGIN {
1.15 sakharuk 54:
1.135 sakharuk 55: &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 56:
1.188 albertel 57: }
58:
1.294 foxr 59: #
60: # Dumps all elements of the table structure.
61: # Need this 'cause evidently when given an array, Data::Dumper only seems
62: # to dump element 0.
63: #
1.302 foxr 64: #sub debug_dump_table {
65: # my $lastrow = $#Apache::londefdef::table;
66: # &Apache::lonnet::logthis("Dumping table: Last row index: $lastrow");
67: # my $row;
68: # for ($row =0; $row <= $lastrow; $row++ ) {
69: # my $text = Dumper($Apache::londefdef::table[$row]);
70: # &Apache::lonnet::logthis("table [ $row ]".$text);
71: # }
72: #}
1.188 albertel 73: sub initialize_londefdef {
74: $Apache::londefdef::TD_redirection=0;
75: @Apache::londefdef::table = ();
76: $Apache::londefdef::select=0;
1.243 albertel 77: undef(@Apache::londefdef::description);
78: @Apache::londefdef::DD=(0);
79: @Apache::londefdef::DT=(0);
1.244 albertel 80: @Apache::londefdef::seenDT=(0);
1.238 albertel 81: $Apache::londefdef::list_index=0;
1.3 sakharuk 82: }
1.1 sakharuk 83:
1.35 sakharuk 84: #======================= TAG SUBROUTINES =====================
1.8 sakharuk 85: #-- <output>
1.21 albertel 86: sub start_output {
1.122 albertel 87: my ($target) = @_;
88: if ($target eq 'meta') { $Apache::lonxml::metamode--; }
89: return '';
1.21 albertel 90: }
91: sub end_output {
1.122 albertel 92: my ($target) = @_;
93: if ($target eq 'meta') { $Apache::lonxml::metamode++; }
94: return '';
1.21 albertel 95: }
1.4 sakharuk 96: #-- <m> tag
1.33 albertel 97: sub start_m {
1.190 albertel 98: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 99: my $currentstring = '';
1.193 albertel 100: my $inside = &Apache::lonxml::get_all_text_unbalanced("/m",$parser);
1.191 albertel 101: if ($target eq 'web' || $target eq 'analyze') {
1.122 albertel 102: &Apache::lonxml::debug("M is starting with:$inside:");
103: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
104: if ($eval eq 'on') {
105: $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
106: #&Apache::lonxml::debug("M is evaulated to:$inside:");
107: }
1.317 albertel 108: my $tex = $inside;
1.276 albertel 109: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
110: $currentstring = &Apache::lontexconvert::converted(\$inside,$display);
1.122 albertel 111: if ($Apache::lontexconvert::errorstring) {
1.317 albertel 112: my $errormsg='<pre>'.&HTML::Entities::encode($Apache::lontexconvert::errorstring,'<>&"').'</pre> occured while attempting to convert this TeX: <pre>';
113: $tex = &HTML::Entities::encode($tex,'<>&"');
114: my ($linenumber) =
115: ($Apache::lontexconvert::errorstring =~ /Line (\d+)/);
116: if (defined($linenumber)) {
117: my @tex=split("\n",$tex);
118: $tex[$linenumber]='<b><font color="red">'.
119: $tex[$linenumber].'</font></b>';
120: $tex=join("\n",@tex);
121: }
122: &Apache::lonxml::warning($errormsg.$tex.'</pre>');
1.122 albertel 123: $Apache::lontexconvert::errorstring='';
124: }
125: #&Apache::lonxml::debug("M is ends with:$currentstring:");
1.178 albertel 126: $Apache::lonxml::post_evaluate=0;
1.122 albertel 127: } elsif ($target eq 'tex') {
1.190 albertel 128: $currentstring = $inside;
1.178 albertel 129: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
130: if ($eval eq 'on') {
131: $currentstring=&Apache::run::evaluate($currentstring,$safeeval,$$parstack[-1]);
132: }
1.122 albertel 133: if ($currentstring=~/^(\s*\\\\\s*)*$/) {$currentstring = ' \vskip 0 mm ';}
1.257 albertel 134: # detect simple math mode entry exits, and convert them
135: # to use \ensuremath
136: if ($currentstring=~/^\s*\$[^\$].*[^\$]\$\s*$/) {
1.293 albertel 137: $currentstring=~s/^(\s*)\$/$1/;
138: $currentstring=~s/\$(\s*)$/$1/;
1.257 albertel 139: $currentstring='\ensuremath{'.$currentstring.'}';
140: }
1.178 albertel 141: $Apache::lonxml::post_evaluate=0;
1.122 albertel 142: }
143: return $currentstring;
1.33 albertel 144: }
1.122 albertel 145:
1.33 albertel 146: sub end_m {
1.122 albertel 147: my ($target,$token) = @_;
148: my $currentstring = '';
1.204 albertel 149: if ($target eq 'tex') {
1.122 albertel 150: $currentstring = "";
151: }
152: return $currentstring;
1.33 albertel 153: }
1.110 albertel 154:
155: sub start_tthoption {
1.299 albertel 156: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 157: my $result;
158: if ($target eq 'web') {
1.299 albertel 159: my $inside = &Apache::lonxml::get_all_text("/tthoption",$parser,
160: $style);
1.122 albertel 161: $inside=~s/^\s*//;
1.267 albertel 162: if ($env{'browser.mathml'}) {
1.122 albertel 163: &tth::ttmoptions($inside);
164: } else {
165: &tth::tthoptions($inside);
166: }
167: }
168: return $result;
1.110 albertel 169: }
170:
171: sub end_tthoption {
1.122 albertel 172: my ($target,$token) = @_;
173: my $result;
174: return $result;
1.110 albertel 175: }
176:
1.181 sakharuk 177: #-- <html> tag (end tag optional)
1.100 albertel 178: sub start_html {
179: my ($target,$token) = @_;
180: my $currentstring = '';
1.267 albertel 181: my $options=$env{'course.'.$env{'request.course.id'}.'.tthoptions'};
1.196 albertel 182: &Apache::lontexconvert::init_tth();
1.269 albertel 183: if ($target eq 'web' || $target eq 'edit' || $target eq 'webgrade' ) {
1.242 albertel 184: $currentstring = &Apache::lonxml::xmlbegin();
1.100 albertel 185: } elsif ($target eq 'tex') {
1.307 foxr 186: $currentstring .= '\documentclass[letterpaper,twoside]{article}';
1.267 albertel 187: if (($env{'form.latex_type'}=~'batchmode') ||
188: (!$env{'request.role.adv'})) {$currentstring .='\batchmode';}
1.217 sakharuk 189: $currentstring .= '\newcommand{\keephidden}[1]{}'.
190: '\renewcommand{\deg}{$^{\circ}$}'.
1.306 foxr 191: '\usepackage{multirow}'.
1.217 sakharuk 192: '\usepackage{longtable}'.
193: '\usepackage{textcomp}'.
194: '\usepackage{makeidx}'.
195: '\usepackage[dvips]{graphicx}'.
1.286 foxr 196: '\usepackage{wrapfig}'.
1.248 foxr 197: '\usepackage{picins}'.
1.217 sakharuk 198: '\usepackage{epsfig}'.
199: '\usepackage{calc}'.
200: '\usepackage{amsmath}'.
201: '\usepackage{amssymb}'.
202: '\usepackage{amsfonts}'.
203: '\usepackage{amsthm}'.
204: '\usepackage{amscd}'.
205: '\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}}'.
206: '\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 207: }
208: return $currentstring;
209: }
1.122 albertel 210:
211: sub end_html {
1.232 sakharuk 212: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 213: my $currentstring = '';
214: if ($target eq 'web') {
1.259 albertel 215: $currentstring = '</html>';
1.122 albertel 216: }
217: return $currentstring;
218: }
219:
1.181 sakharuk 220: #-- <head> tag (end tag optional)
1.122 albertel 221: sub start_head {
222: my ($target,$token) = @_;
223: my $currentstring = '';
224: if ($target eq 'web') {
1.242 albertel 225: $currentstring = $token->[4].&Apache::lonxml::fontsettings();
1.122 albertel 226: }
227: return $currentstring;
228: }
229:
230: sub end_head {
231: my ($target,$token) = @_;
232: my $currentstring = '';
1.267 albertel 233: if ($target eq 'web' && $env{'request.state'} eq 'published') {
1.122 albertel 234: $currentstring = &Apache::lonmenu::registerurl(undef,$target).
235: $token->[2];
236: }
237: return $currentstring;
238: }
239:
1.181 sakharuk 240: #-- <map> tag (end tag required)
1.122 albertel 241: sub start_map {
242: my ($target,$token) = @_;
243: my $currentstring = '';
244: if ($target eq 'web') {
245: $currentstring = $token->[4];
246: }
247: return $currentstring;
248: }
249:
250: sub end_map {
251: my ($target,$token) = @_;
252: my $currentstring = '';
253: if ($target eq 'web') {
254: $currentstring = $token->[2];
255: }
256: return $currentstring;
257: }
258:
1.181 sakharuk 259: #-- <select> tag (end tag required)
1.122 albertel 260: sub start_select {
261: my ($target,$token) = @_;
262: my $currentstring = '';
263: if ($target eq 'web') {
264: $currentstring = $token->[4];
1.181 sakharuk 265: } elsif ($target eq 'tex') {
266: $Apache::londefdef::select=0;
267: }
1.122 albertel 268: return $currentstring;
269: }
270:
271: sub end_select {
272: my ($target,$token) = @_;
273: my $currentstring = '';
274: if ($target eq 'web') {
275: $currentstring = $token->[2];
276: }
277: return $currentstring;
278: }
279:
1.181 sakharuk 280: #-- <option> tag (end tag optional)
1.122 albertel 281: sub start_option {
1.181 sakharuk 282: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 283: my $currentstring = '';
284: if ($target eq 'web') {
285: $currentstring = $token->[4];
1.181 sakharuk 286: } elsif ($target eq 'tex') {
287: $Apache::londefdef::select++;
288: if ($Apache::londefdef::select == 1) {
289: $currentstring='\noindent\fbox{'.&Apache::lonxml::get_param('value',$parstack,$safeeval).'}\keephidden{';
290: } else {
291: $currentstring='\keephidden{';
292: }
293: }
1.122 albertel 294: return $currentstring;
295: }
296:
297: sub end_option {
298: my ($target,$token) = @_;
299: my $currentstring = '';
300: if ($target eq 'web') {
301: $currentstring = $token->[2];
1.181 sakharuk 302: } elsif ($target eq 'tex') {
303: $currentstring='}';
304: }
1.122 albertel 305: return $currentstring;
306: }
307:
1.181 sakharuk 308: #-- <input> tag (end tag forbidden)
1.122 albertel 309: sub start_input {
310: my ($target,$token) = @_;
311: my $currentstring = '';
312: if ($target eq 'web') {
313: $currentstring = $token->[4];
314: }
315: return $currentstring;
316: }
317:
318: sub end_input {
319: my ($target,$token) = @_;
320: my $currentstring = '';
321: if ($target eq 'web') {
322: $currentstring = $token->[2];
323: }
324: return $currentstring;
325: }
326:
1.181 sakharuk 327: #-- <textarea> tag (end tag required)
1.122 albertel 328: sub start_textarea {
329: my ($target,$token) = @_;
330: my $currentstring = '';
331: if ($target eq 'web') {
332: $currentstring = $token->[4];
333: }
334: return $currentstring;
335: }
336:
337: sub end_textarea {
338: my ($target,$token) = @_;
339: my $currentstring = '';
340: if ($target eq 'web') {
341: $currentstring = $token->[2];
342: }
343: return $currentstring;
344: }
345:
1.181 sakharuk 346: #-- <form> tag (end tag required)
1.122 albertel 347: sub start_form {
348: my ($target,$token) = @_;
349: my $currentstring = '';
350: if ($target eq 'web') {
351: $currentstring = $token->[4];
352: }
353: return $currentstring;
354: }
355:
356: sub end_form {
357: my ($target,$token) = @_;
358: my $currentstring = '';
359: if ($target eq 'web') {
360: $currentstring = $token->[2];
361: }
362: return $currentstring;
363: }
364:
1.181 sakharuk 365: #-- <title> tag (end tag required)
1.122 albertel 366: sub start_title {
367: my ($target,$token) = @_;
368: my $currentstring = '';
369: if ($target eq 'web') {
370: $currentstring = $token->[4];
371: } elsif ($target eq 'tex') {
1.166 sakharuk 372: $currentstring .= '\keephidden{Title of the document: '
1.122 albertel 373: }
374: if ($target eq 'meta') {
375: $currentstring='<title>';
1.185 albertel 376: &start_output($target);
1.122 albertel 377: }
378: return $currentstring;
379: }
380:
381: sub end_title {
382: my ($target,$token) = @_;
383: my $currentstring = '';
384: if ($target eq 'web') {
385: $currentstring = $token->[2];
386: } elsif ($target eq 'tex') {
387: $currentstring .= '}';
388: }
389: if ($target eq 'meta') {
1.185 albertel 390: &end_output($target);
1.122 albertel 391: $currentstring='</title>';
392: }
393: return $currentstring;
394: }
395:
1.181 sakharuk 396: #-- <meta> tag (end tag forbidden)
1.122 albertel 397: sub start_meta {
1.299 albertel 398: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 399: my $currentstring = '';
400: if ($target eq 'web') {
401: my $args='';
402: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
403: if ($args eq '') {
1.299 albertel 404: &Apache::lonxml::get_all_text("/meta",$parser,$style);
1.122 albertel 405: } else {
406: $currentstring = $token->[4];
1.1 sakharuk 407: }
1.135 sakharuk 408: } elsif ($target eq 'meta') {
1.122 albertel 409: unless (&Apache::lonxml::get_param
410: ('http-equiv',$parstack,$safeeval,undef,1)) {
411: my $name=$token->[2]->{'name'};
412: $name=~tr/A-Z/a-z/;
413: $name=~s/\s/\_/gs;
414: $name=~s/\W//gs;
415: if ($name) {
1.154 www 416: $currentstring='<'.$name;
417: my $display=&Apache::lonxml::get_param
418: ('display',$parstack,$safeeval,undef,1);
419: if ($display) {
420: $display=~s/\"/\'/g;
421: $currentstring.=' display="'.$display.'"';
422: }
423: $currentstring.='>'.
1.122 albertel 424: &Apache::lonxml::get_param
425: ('content',$parstack,$safeeval,undef,1).
1.135 sakharuk 426: '</'.$name.'>';
1.1 sakharuk 427: }
1.154 www 428: my $display=&Apache::lonxml::get_param
429: ('display',$parstack,$safeeval,undef,1);
430: if ($display) {
1.204 albertel 431: $display=&HTML::Entities::encode($display,'<>&"');
1.154 www 432: $currentstring.='<'.$name.'.display>'.$display.
433: '</'.$name.'.display>';
434: }
1.1 sakharuk 435: }
1.135 sakharuk 436: } elsif ($target eq 'tex') {
1.151 sakharuk 437: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
438: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
439: if ((not defined $content) && (not defined $name)) {
440: &Apache::lonxml::startredirection();
441: }
1.122 albertel 442: }
443: return $currentstring;
444: }
445:
446: sub end_meta {
1.165 albertel 447: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 448: my $currentstring = '';
449: if ($target eq 'web') {
450: my $args='';
451: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
452: if ($args ne '') {
1.121 www 453: $currentstring = $token->[4];
1.122 albertel 454: }
1.135 sakharuk 455: } elsif ($target eq 'tex') {
1.165 albertel 456: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
457: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
1.164 albertel 458: if ((not defined $content) && (not defined $name)) {
1.169 albertel 459: &Apache::lonxml::endredirection();
1.164 albertel 460: }
1.135 sakharuk 461: }
1.122 albertel 462: return $currentstring;
463: }
464:
1.121 www 465: # accessrule
1.122 albertel 466: sub start_accessrule {
1.299 albertel 467: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 468: my $currentstring = '';
469: my $eff=&Apache::lonxml::get_param
470: ('effect',$parstack,$safeeval,undef,1);
471: my $realm=&Apache::lonxml::get_param
472: ('realm',$parstack,$safeeval,undef,1);
1.123 www 473: my $role=&Apache::lonxml::get_param
474: ('role',$parstack,$safeeval,undef,1);
475: $realm=~s/\s+//g;
476: $realm=~s/\//\_/g;
477: $realm=~s/^\_//;
478: $realm=~s/\W/\;/g;
479: $role=~s/\s+//g;
480: $role=~s/\//\_/g;
481: $role=~s/\W/\;/g;
1.122 albertel 482: if ($target eq 'web') {
483: my $args='';
484: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
485: if ($args eq '') {
1.299 albertel 486: &Apache::lonxml::get_all_text("/accessrule",$parser,$style);
1.122 albertel 487: } else {
488: $currentstring = $token->[4];
489: }
490: }
491: if ($target eq 'meta') {
1.123 www 492: $currentstring='<rule>'.$eff.':'.$realm.':'.$role.'</rule>';
1.122 albertel 493: }
494: return $currentstring;
495: }
496:
497: sub end_accessrule {
498: my ($target,$token,$tagstack,$parstack,$parser) = @_;
499: my $currentstring = '';
500: if ($target eq 'web') {
501: my $args='';
502: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
503: if ($args ne '') {
504: $currentstring = $token->[4];
505: }
506: }
507: return $currentstring;
508: }
509:
1.181 sakharuk 510: #-- <body> tag (end tag required)
1.122 albertel 511: sub start_body {
512: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
513: my $currentstring = '';
1.244 albertel 514:
1.122 albertel 515: if ($target eq 'web') {
1.170 albertel 516: if ($Apache::lonhomework::parsing_a_problem) {
517: &Apache::lonxml::warning("<body> tag found inside of <problem> tag this can cause problems.");
518: return '';
519: }
1.180 albertel 520: if (!$Apache::lonxml::registered &&
1.267 albertel 521: $env{'request.state'} eq 'published') {
1.122 albertel 522: $currentstring.='<head>'.
523: &Apache::lonmenu::registerurl(undef,$target).'</head>';
524: }
1.155 www 525: # Accessibility
1.267 albertel 526: if ($env{'browser.imagesuppress'} eq 'on') {
1.155 www 527: delete($token->[2]->{'background'});
528: }
1.267 albertel 529: if ($env{'browser.fontenhance'} eq 'on') {
1.155 www 530: my $style='';
531: foreach my $key (keys(%{$token->[2]})) {
532: if ($key =~ /^style$/i) {
533: $style.=$token->[2]->{$key}.';';
534: delete($token->[2]->{$key});
535: }
536: }
537: $token->[2]->{'style'}=$style.'; font-size: x-large;';
538: }
1.267 albertel 539: if ($env{'browser.blackwhite'} eq 'on') {
1.155 www 540: delete($token->[2]->{'font'});
541: delete($token->[2]->{'link'});
542: delete($token->[2]->{'alink'});
543: delete($token->[2]->{'vlink'});
544: delete($token->[2]->{'bgcolor'});
545: delete($token->[2]->{'background'});
546: }
547: # Overload loads
1.122 albertel 548: my $onLoad='';
549: foreach my $key (keys(%{$token->[2]})) {
550: if ($key =~ /^onload$/i) {
551: $onLoad.=$token->[2]->{$key}.';';
552: delete($token->[2]->{$key});
1.121 www 553: }
1.122 albertel 554: }
555: $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad;
556: my $onUnload='';
557: foreach my $key (keys(%{$token->[2]})) {
558: if ($key =~ /^onunload$/i) {
559: $onUnload.=$token->[2]->{$key}.';';
560: delete($token->[2]->{$key});
1.121 www 561: }
562: }
1.122 albertel 563: $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().
564: ';'.$onUnload;
565:
1.278 www 566: $currentstring .= '<'.$token->[1];
1.122 albertel 567: foreach (keys %{$token->[2]}) {
568: $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
569: }
1.278 www 570: $currentstring.='>';
1.284 albertel 571: &Apache::lontexconvert::jsMath_reset();
572: if ($env{'environment.texengine'} eq 'jsMath') {
573: $currentstring.=&Apache::lontexconvert::jsMath_header();
574: }
1.267 albertel 575: if ($env{'request.state'} ne 'published') {
1.278 www 576: if ($env{'environment.remote'} eq 'off') {
577: $currentstring.=
578: &Apache::lonmenu::constspaceform().
579: &Apache::lonmenu::menubuttons(1,'web',1);
580: }
1.122 albertel 581: $currentstring.=(<<EDITBUTTON);
1.278 www 582: <form method="post">
583: <input type="submit" name="editmode" accesskey="e" value="Edit" />
584: </form>
1.40 albertel 585: EDITBUTTON
1.122 albertel 586: } else {
587: $currentstring.=&Apache::lonmenu::menubuttons(undef,$target,1);
1.1 sakharuk 588: }
1.201 albertel 589: $currentstring.=&Apache::lonxml::message_location();
1.122 albertel 590: } elsif ($target eq 'tex') {
591: $currentstring = '\begin{document}';
592: }
593: return $currentstring;
594: }
595:
596: sub end_body {
1.259 albertel 597: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 598: my $currentstring = &end_p(); # Close off unclosed <p>
1.122 albertel 599: if ($target eq 'web') {
1.277 foxr 600: $currentstring .= &Apache::lonxml::xmlend($target,$parser);
1.122 albertel 601: } elsif ($target eq 'tex') {
1.277 foxr 602: $currentstring .= '\strut\newline\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\newline\noindent \end{document}';
1.122 albertel 603: }
604: return $currentstring;
605: }
606:
1.309 albertel 607: # \begin{center} causes a new paragprah spacing that looks odd inside
608: # of a table cell
609: sub center_correction { return '\vspace*{-6 mm}'; }
1.181 sakharuk 610: #-- <center> tag (end tag required)
1.122 albertel 611: sub start_center {
1.309 albertel 612: my ($target,$token,$tagstack) = @_;
1.279 foxr 613: my $currentstring = &end_p(); # Close off any prior para.
1.122 albertel 614: if ($target eq 'web') {
1.277 foxr 615: $currentstring .= $token->[4];
1.122 albertel 616: } elsif ($target eq 'tex') {
1.309 albertel 617: if (&is_inside_of($tagstack, "table")) {
618: $currentstring .= ¢er_correction();
619: }
1.277 foxr 620: $currentstring .= '\begin{center}';
1.144 sakharuk 621: }
1.122 albertel 622: return $currentstring;
623: }
624:
625: sub end_center {
1.309 albertel 626: my ($target,$token,$tagstack) = @_;
1.122 albertel 627: my $currentstring = '';
628: if ($target eq 'web') {
629: $currentstring = $token->[2];
630: } elsif ($target eq 'tex') {
631: $currentstring = '\end{center}';
1.144 sakharuk 632: }
1.122 albertel 633: return $currentstring;
634: }
635:
1.181 sakharuk 636: #-- <b> tag (end tag required)
1.279 foxr 637: # NOTE: In TeX mode disables internal <p>
1.122 albertel 638: sub start_b {
639: my ($target,$token) = @_;
640: my $currentstring = '';
641: if ($target eq 'web') {
642: $currentstring = $token->[4];
643: } elsif ($target eq 'tex') {
1.279 foxr 644: &disable_para();
645: $currentstring .= '\textbf{';
1.122 albertel 646: }
647: return $currentstring;
648: }
649:
650: sub end_b {
651: my ($target,$token) = @_;
652: my $currentstring = '';
653: if ($target eq 'web') {
654: $currentstring = $token->[2];
655: } elsif ($target eq 'tex') {
1.279 foxr 656: &enable_para();
657: $currentstring = '}';
1.122 albertel 658: }
659: return $currentstring;
660: }
1.35 sakharuk 661:
1.181 sakharuk 662: #-- <strong> tag (end tag required)
1.279 foxr 663: # NOTE: in TeX mode disables internal <p>
1.122 albertel 664: sub start_strong {
665: my ($target,$token) = @_;
666: my $currentstring = '';
667: if ($target eq 'web') {
668: $currentstring = $token->[4];
669: } elsif ($target eq 'tex') {
1.279 foxr 670: &disable_para();
1.122 albertel 671: $currentstring = '\textbf{';
672: }
673: return $currentstring;
674: }
675:
676: sub end_strong {
677: my ($target,$token) = @_;
678: my $currentstring = '';
1.182 sakharuk 679: if ($target eq 'web') {
1.122 albertel 680: $currentstring = $token->[2];
681: } elsif ($target eq 'tex') {
1.279 foxr 682: &enable_para();
1.122 albertel 683: $currentstring = '}';
1.144 sakharuk 684: }
1.122 albertel 685: return $currentstring;
686: }
687:
1.181 sakharuk 688: #-- <h1> tag (end tag required)
1.122 albertel 689: sub start_h1 {
1.125 sakharuk 690: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 691: my $currentstring = &end_p(); # Close off any prior para.
1.122 albertel 692: if ($target eq 'web') {
693: $currentstring .= $token->[4];
694: } elsif ($target eq 'tex') {
1.125 sakharuk 695: my $pre;
1.199 albertel 696: my $align=lc(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1));
1.212 sakharuk 697: if ($align eq 'center') {
1.125 sakharuk 698: $pre='\begin{center}';
699: } elsif ($align eq 'left') {
700: $pre='\rlap{';
701: } elsif ($align eq 'right') {
702: $pre=' \hfill \llap{';
703: }
704: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
705: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 706: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 707: } elsif ($target eq 'meta') {
1.277 foxr 708: $currentstring.='<subject>';
1.185 albertel 709: &start_output($target);
1.122 albertel 710: }
711: return $currentstring;
712: }
713:
714: sub end_h1 {
1.125 sakharuk 715: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 716: my $currentstring = '';
717: if ($target eq 'web') {
718: $currentstring .= $token->[2];
719: } elsif ($target eq 'tex') {
1.212 sakharuk 720: my $post='\vskip 0 mm ';
1.125 sakharuk 721: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 722: if ($align eq 'center') {
1.125 sakharuk 723: $post='\end{center}';
724: } elsif ($align eq 'left') {
725: $post='} \hfill'.'\vskip 0 mm ';
726: } elsif ($align eq 'right') {
727: $post='}'.'\vskip 0 mm ';
728: }
729: $currentstring .= '}}'.$post;
1.122 albertel 730: } elsif ($target eq 'meta') {
1.185 albertel 731: &end_output($target);
1.122 albertel 732: $currentstring='</subject>';
733: }
734: return $currentstring;
735: }
736:
1.35 sakharuk 737: #-- <h2> tag
1.122 albertel 738: sub start_h2 {
1.125 sakharuk 739: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 740: my $currentstring = &end_p(); # Close off any prior para.
1.122 albertel 741: if ($target eq 'web') {
742: $currentstring .= $token->[4];
743: } elsif ($target eq 'tex') {
1.125 sakharuk 744: my $pre;
745: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 746: if ($align eq 'center') {
1.125 sakharuk 747: $pre='\begin{center}';
748: } elsif ($align eq 'left') {
749: $pre='\rlap{';
750: } elsif ($align eq 'right') {
751: $pre=' \hfill \llap{';
752: }
753: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
754: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 755: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 756: }
757: return $currentstring;
758: }
759:
760: sub end_h2 {
1.125 sakharuk 761: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 762: my $currentstring = '';
763: if ($target eq 'web') {
764: $currentstring .= $token->[2];
765: } elsif ($target eq 'tex') {
1.212 sakharuk 766: my $post='\vskip 0 mm ';
1.125 sakharuk 767: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 768: if ($align eq 'center') {
1.125 sakharuk 769: $post='\end{center}';
770: } elsif ($align eq 'left') {
771: $post='} \hfill'.'\vskip 0 mm ';
772: } elsif ($align eq 'right') {
773: $post='}'.'\vskip 0 mm ';
774: }
775: $currentstring .= '}}'.$post;
1.122 albertel 776: }
777: return $currentstring;
778: }
779:
1.35 sakharuk 780: #-- <h3> tag
1.122 albertel 781: sub start_h3 {
1.125 sakharuk 782: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 783: my $currentstring = &end_p(); # Close off any prior para.
1.122 albertel 784: if ($target eq 'web') {
785: $currentstring .= $token->[4];
786: } elsif ($target eq 'tex') {
1.125 sakharuk 787: my $pre;
788: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 789: if ($align eq 'center') {
1.125 sakharuk 790: $pre='\begin{center}';
791: } elsif ($align eq 'left') {
792: $pre='\rlap{';
793: } elsif ($align eq 'right') {
794: $pre=' \hfill \llap{';
795: }
796: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
797: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 798: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 799: }
800: return $currentstring;
801: }
802:
803: sub end_h3 {
1.125 sakharuk 804: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 805: my $currentstring = '';
806: if ($target eq 'web') {
807: $currentstring .= $token->[2];
808: } elsif ($target eq 'tex') {
1.212 sakharuk 809: my $post='\vskip 0 mm ';
1.125 sakharuk 810: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 811: if ($align eq 'center') {
1.125 sakharuk 812: $post='\end{center}';
813: } elsif ($align eq 'left') {
814: $post='} \hfill'.'\vskip 0 mm ';
815: } elsif ($align eq 'right') {
816: $post='}'.'\vskip 0 mm ';
817: }
818: $currentstring .= '}}'.$post;
1.122 albertel 819: }
820: return $currentstring;
821: }
822:
1.35 sakharuk 823: #-- <h4> tag
1.122 albertel 824: sub start_h4 {
1.125 sakharuk 825: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 826: my $currentstring = &end_p(); # Close off any prior para.
1.122 albertel 827: if ($target eq 'web') {
828: $currentstring .= $token->[4];
829: } elsif ($target eq 'tex') {
1.125 sakharuk 830: my $pre;
831: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 832: if ($align eq 'center') {
1.125 sakharuk 833: $pre='\begin{center}';
834: } elsif ($align eq 'left') {
835: $pre='\rlap{';
836: } elsif ($align eq 'right') {
837: $pre=' \hfill \llap{';
838: }
839: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
840: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 841: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 842: }
843: return $currentstring;
844: }
845:
846: sub end_h4 {
1.125 sakharuk 847: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 848: my $currentstring = '';
849: if ($target eq 'web') {
850: $currentstring .= $token->[2];
851: } elsif ($target eq 'tex') {
1.212 sakharuk 852: my $post='\vskip 0 mm ';
1.125 sakharuk 853: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 854: if ($align eq 'center') {
1.125 sakharuk 855: $post='\end{center}';
856: } elsif ($align eq 'left') {
857: $post='} \hfill'.'\vskip 0 mm ';
858: } elsif ($align eq 'right') {
859: $post='}'.'\vskip 0 mm ';
860: }
861: $currentstring .= '}}'.$post;
1.122 albertel 862: }
863: return $currentstring;
864: }
865:
1.35 sakharuk 866: #-- <h5> tag
1.122 albertel 867: sub start_h5 {
1.125 sakharuk 868: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 869: my $currentstring = &end_p(); # Close off any prior paras.
1.122 albertel 870: if ($target eq 'web') {
871: $currentstring .= $token->[4];
872: } elsif ($target eq 'tex') {
1.125 sakharuk 873: my $pre;
874: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 875: if ($align eq 'center') {
1.125 sakharuk 876: $pre='\begin{center}';
877: } elsif ($align eq 'left') {
878: $pre='\rlap{';
879: } elsif ($align eq 'right') {
880: $pre=' \hfill \llap{';
881: }
882: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
883: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 884: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 885: }
886: return $currentstring;
887: }
888:
889: sub end_h5 {
1.125 sakharuk 890: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 891: my $currentstring = '';
892: if ($target eq 'web') {
893: $currentstring .= $token->[2];
894: } elsif ($target eq 'tex') {
1.212 sakharuk 895: my $post='\vskip 0 mm ';
1.125 sakharuk 896: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 897: if ($align eq 'center') {
1.125 sakharuk 898: $post='\end{center}';
899: } elsif ($align eq 'left') {
900: $post='} \hfill'.'\vskip 0 mm ';
901: } elsif ($align eq 'right') {
902: $post='}'.'\vskip 0 mm ';
903: }
904: $currentstring .= '}}'.$post;
1.122 albertel 905: }
906: return $currentstring;
907: }
908:
1.35 sakharuk 909: #-- <h6> tag
1.122 albertel 910: sub start_h6 {
1.125 sakharuk 911: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 912: my $currentstring = &end_p(); # Close off any prior paras.
1.122 albertel 913: if ($target eq 'web') {
914: $currentstring .= $token->[4];
915: } elsif ($target eq 'tex') {
1.125 sakharuk 916: my $pre;
917: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 918: if ($align eq 'center') {
1.125 sakharuk 919: $pre='\begin{center}';
920: } elsif ($align eq 'left') {
921: $pre='\rlap{';
922: } elsif ($align eq 'right') {
923: $pre=' \hfill \llap{';
924: }
925: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
926: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 927: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 928: }
929: return $currentstring;
930: }
931:
932: sub end_h6 {
1.125 sakharuk 933: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 934: my $currentstring = '';
935: if ($target eq 'web') {
936: $currentstring .= $token->[2];
937: } elsif ($target eq 'tex') {
1.212 sakharuk 938: my $post='\vskip 0 mm ';
1.125 sakharuk 939: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 940: if ($align eq 'center') {
1.125 sakharuk 941: $post='\end{center}';
942: } elsif ($align eq 'left') {
943: $post='} \hfill'.'\vskip 0 mm ';
944: } elsif ($align eq 'right') {
945: $post='}'.'\vskip 0 mm ';
946: }
947: $currentstring .= '}}'.$post;
1.122 albertel 948: }
949: return $currentstring;
950: }
951:
1.181 sakharuk 952: #--- <cite> tag (end tag required)
1.122 albertel 953: sub start_cite {
954: my ($target,$token) = @_;
955: my $currentstring = '';
956: if ($target eq 'web') {
957: $currentstring .= $token->[4];
958: } elsif ($target eq 'tex') {
1.179 sakharuk 959: $currentstring .= '\textit{';
1.144 sakharuk 960: }
1.122 albertel 961: return $currentstring;
962: }
963:
964: sub end_cite {
965: my ($target,$token) = @_;
966: my $currentstring = '';
967: if ($target eq 'web') {
968: $currentstring .= $token->[2];
969: } elsif ($target eq 'tex') {
1.179 sakharuk 970: $currentstring .= '}';
1.144 sakharuk 971: }
1.122 albertel 972: return $currentstring;
973: }
974:
1.181 sakharuk 975: #-- <i> tag (end tag required)
1.122 albertel 976: sub start_i {
977: my ($target,$token) = @_;
978: my $currentstring = '';
979: if ($target eq 'web') {
980: $currentstring .= $token->[4];
981: } elsif ($target eq 'tex') {
982: $currentstring .= '\textit{';
1.144 sakharuk 983: }
1.122 albertel 984: return $currentstring;
985: }
986:
987: sub end_i {
988: my ($target,$token) = @_;
989: my $currentstring = '';
990: if ($target eq 'web') {
991: $currentstring .= $token->[2];
992: } elsif ($target eq 'tex') {
993: $currentstring .= '}';
994: }
995: return $currentstring;
996: }
997:
1.181 sakharuk 998: #-- <address> tag (end tag required)
1.122 albertel 999: sub start_address {
1000: my ($target,$token) = @_;
1001: my $currentstring = '';
1002: if ($target eq 'web') {
1003: $currentstring .= $token->[4];
1004: } elsif ($target eq 'tex') {
1.179 sakharuk 1005: $currentstring .= '\textit{';
1.144 sakharuk 1006: }
1.122 albertel 1007: return $currentstring;
1008: }
1009:
1010: sub end_address {
1011: my ($target,$token) = @_;
1012: my $currentstring = '';
1013: if ($target eq 'web') {
1014: $currentstring .= $token->[2];
1015: } elsif ($target eq 'tex') {
1.179 sakharuk 1016: $currentstring .= '}';
1.122 albertel 1017: }
1018: return $currentstring;
1019: }
1020:
1.181 sakharuk 1021: #-- <dfn> tag (end tag required)
1.122 albertel 1022: sub start_dfn {
1023: my ($target,$token) = @_;
1024: my $currentstring = '';
1025: if ($target eq 'web') {
1026: $currentstring .= $token->[4];
1027: } elsif ($target eq 'tex') {
1.179 sakharuk 1028: $currentstring .= '\textit{';
1.122 albertel 1029: }
1030: return $currentstring;
1031: }
1032:
1033: sub end_dfn {
1034: my ($target,$token) = @_;
1035: my $currentstring = '';
1036: if ($target eq 'web') {
1037: $currentstring .= $token->[2];
1038: } elsif ($target eq 'tex') {
1.179 sakharuk 1039: $currentstring .= '}';
1.144 sakharuk 1040: }
1.122 albertel 1041: return $currentstring;
1042: }
1043:
1.181 sakharuk 1044: #-- <tt> tag (end tag required)
1.122 albertel 1045: sub start_tt {
1046: my ($target,$token) = @_;
1047: my $currentstring = '';
1048: if ($target eq 'web') {
1049: $currentstring .= $token->[4];
1050: } elsif ($target eq 'tex') {
1051: $currentstring .= '\texttt{';
1.144 sakharuk 1052: }
1.122 albertel 1053: return $currentstring;
1054: }
1055:
1056: sub end_tt {
1057: my ($target,$token) = @_;
1058: my $currentstring = '';
1059: if ($target eq 'web') {
1060: $currentstring .= $token->[2];
1061: } elsif ($target eq 'tex') {
1062: $currentstring .= '}';
1063: }
1064: return $currentstring;
1065: }
1066:
1.181 sakharuk 1067: #-- <kbd> tag (end tag required)
1.122 albertel 1068: sub start_kbd {
1069: my ($target,$token) = @_;
1070: my $currentstring = '';
1071: if ($target eq 'web') {
1072: $currentstring .= $token->[4];
1073: } elsif ($target eq 'tex') {
1.179 sakharuk 1074: $currentstring .= '\texttt{';
1.144 sakharuk 1075: }
1.122 albertel 1076: return $currentstring;
1077: }
1078:
1079: sub end_kbd {
1080: my ($target,$token) = @_;
1081: my $currentstring = '';
1082: if ($target eq 'web') {
1083: $currentstring .= $token->[2];
1084: } elsif ($target eq 'tex') {
1.179 sakharuk 1085: $currentstring .= '}';
1.144 sakharuk 1086: }
1.122 albertel 1087: return $currentstring;
1088: }
1089:
1.181 sakharuk 1090: #-- <code> tag (end tag required)
1.122 albertel 1091: sub start_code {
1092: my ($target,$token) = @_;
1093: my $currentstring = '';
1094: if ($target eq 'web') {
1095: $currentstring .= $token->[4];
1096: } elsif ($target eq 'tex') {
1097: $currentstring .= '\texttt{';
1098: }
1099: return $currentstring;
1100: }
1101:
1102: sub end_code {
1103: my ($target,$token) = @_;
1104: my $currentstring = '';
1105: if ($target eq 'web') {
1106: $currentstring .= $token->[2];
1107: } elsif ($target eq 'tex') {
1108: $currentstring .= '}';
1109: }
1110: return $currentstring;
1111: }
1112:
1.181 sakharuk 1113: #-- <em> tag (end tag required)
1.122 albertel 1114: sub start_em {
1115: my ($target,$token) = @_;
1116: my $currentstring = '';
1117: if ($target eq 'web') {
1118: $currentstring .= $token->[4];
1119: } elsif ($target eq 'tex') {
1120: $currentstring .= '\emph{';
1.144 sakharuk 1121: }
1.122 albertel 1122: return $currentstring;
1123: }
1124:
1125: sub end_em {
1126: my ($target,$token) = @_;
1127: my $currentstring = '';
1128: if ($target eq 'web') {
1129: $currentstring .= $token->[2];
1130: } elsif ($target eq 'tex') {
1131: $currentstring .= '}';
1.144 sakharuk 1132: }
1.122 albertel 1133: return $currentstring;
1134: }
1135:
1.181 sakharuk 1136: #-- <q> tag (end tag required)
1.122 albertel 1137: sub start_q {
1138: my ($target,$token) = @_;
1139: my $currentstring = '';
1140: if ($target eq 'web') {
1141: $currentstring .= $token->[4];
1142: } elsif ($target eq 'tex') {
1.179 sakharuk 1143: $currentstring .= '\emph{';
1.122 albertel 1144: }
1145: return $currentstring;
1146: }
1147:
1148: sub end_q {
1149: my ($target,$token) = @_;
1150: my $currentstring = '';
1151: if ($target eq 'web') {
1152: $currentstring .= $token->[2];
1153: } elsif ($target eq 'tex') {
1.179 sakharuk 1154: $currentstring .= '}';
1.144 sakharuk 1155: }
1.122 albertel 1156: return $currentstring;
1157: }
1158:
1.277 foxr 1159: # <p> is a bit strange since it does not require a closing </p>
1160: # However in latex, we must often output closing stuff to end
1161: # environments and {}'s etc. Therefore we do all the work
1162: # of figuring out the ending strings in the start tag processing,
1163: # and provide a mechanism to output the stop text external
1164: # to tag processing.
1165: #
1166: {
1167:
1168: my $closing_string = ''; # String required to close <p>
1169:
1.279 foxr 1170: # Some tags are <p> fragile meaning that <p> inside of them
1171: # does not work within TeX mode. This is managed via the
1172: # counter below:
1173: #
1174:
1175: my $para_disabled = 0;
1176:
1177: sub disable_para {
1178: $para_disabled++;
1179: }
1180: sub enable_para {
1181: $para_disabled--;
1182: }
1183:
1184:
1.181 sakharuk 1185: #-- <p> tag (end tag optional)
1.198 sakharuk 1186: #optional attribute - align="center|left|right"
1.122 albertel 1187: sub start_p {
1.157 sakharuk 1188: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1189: my $currentstring = '';
1.122 albertel 1190: if ($target eq 'web') {
1.279 foxr 1191: $currentstring .= &end_p(); # close off prior para if in progress.
1.122 albertel 1192: $currentstring .= $token->[4];
1.279 foxr 1193: if (! ($currentstring =~ /\//)) {
1194: $closing_string = '</p>'; # Deal correctly with <p /> e.g.
1195: }
1196: } elsif ($target eq 'tex' && !$para_disabled) {
1.313 foxr 1197:
1.279 foxr 1198: $currentstring .= &end_p(); # close off prior para if in progress.
1.198 sakharuk 1199: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1200: if ($align eq 'center') {
1.277 foxr 1201: $currentstring .='\begin{center}\par';
1202: $closing_string = '\end{center}';
1.309 albertel 1203: if (&is_inside_of($tagstack, "table")) {
1204: $currentstring = ¢er_correction().$currentstring;
1205: }
1.198 sakharuk 1206: } elsif ($align eq 'right') {
1.277 foxr 1207: $currentstring.='\makebox['.$env{'form.textwidth'}.']{\hfill\llap{';
1208: $closing_string= '}}';
1.198 sakharuk 1209: } elsif ($align eq 'left') {
1.277 foxr 1210: $currentstring.='\noindent\makebox['.$env{'form.textwidth'}.']{\rlap{';
1211: $closing_string = '}\hfill}';
1.216 matthew 1212: } else {
1.277 foxr 1213: $currentstring.='\par ';
1.313 foxr 1214: if (&is_inside_of($tagstack, 'table')) {
1.315 foxr 1215: $closing_string = '\vskip 0pt'; # Seems to be consistent with <p> in tables.
1.313 foxr 1216: } else {
1217: $closing_string = '\strut\\\\\strut ';
1218: }
1.216 matthew 1219: }
1.277 foxr 1220:
1.144 sakharuk 1221: }
1.122 albertel 1222: return $currentstring;
1223: }
1.277 foxr 1224: #
1225: # End paragraph processing just requires that we output the
1226: # closing string that was saved and blank it.
1227: sub end_p {
1.279 foxr 1228: # Note only 'tex' mode uses disable_para and enable_para
1229: # so we don't need to know the target in the check below:
1230:
1231: if (!$para_disabled) {
1232: my $current_string = $closing_string;
1233: $closing_string = ''; # Not in a para anymore.
1234: return $current_string;
1235: } else {
1236: return '';
1237: }
1.122 albertel 1238:
1239: }
1.277 foxr 1240: }
1.181 sakharuk 1241: #-- <br> tag (end tag forbidden)
1.122 albertel 1242: sub start_br {
1243: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1244: my $currentstring = '';
1245: if ($target eq 'web') {
1246: $currentstring .= $token->[4];
1247: } elsif ($target eq 'tex') {
1.227 sakharuk 1248: my @tempo=@$tagstack;
1.229 sakharuk 1249: my $signal=0;
1.287 foxr 1250: # Not going to factor this to is_inside_of since that would require
1251: # multiple stack traversals.
1252: #
1.227 sakharuk 1253: for (my $i=$#tempo;$i>=0;$i--) {
1254: if (($tempo[$i] eq 'b') || ($tempo[$i] eq 'strong') ||
1.230 sakharuk 1255: ($tempo[$i] eq 'ol') || ($tempo[$i] eq 'ul') ||
1256: ($tempo[$i] eq 'td') || ($tempo[$i] eq 'th')) {
1.229 sakharuk 1257: $signal=1;
1.227 sakharuk 1258: last;
1259: }
1260: }
1.229 sakharuk 1261: if ($signal) {
1.219 sakharuk 1262: $currentstring .= ' \vskip 0 mm ';
1263: } elsif ($$tagstack[-2] ne 'sub' && $$tagstack[-2] ne 'sup') {
1264: $currentstring .= '\strut \\\\ \strut ';
1.1 sakharuk 1265: }
1.144 sakharuk 1266: }
1.122 albertel 1267: return $currentstring;
1268: }
1269:
1270: sub end_br {
1271: my ($target,$token) = @_;
1272: my $currentstring = '';
1273: if ($target eq 'web') {
1274: $currentstring .= $token->[2];
1275: }
1276: return $currentstring;
1277: }
1278:
1.181 sakharuk 1279: #-- <big> tag (end tag required)
1.122 albertel 1280: sub start_big {
1281: my ($target,$token) = @_;
1282: my $currentstring = '';
1283: if ($target eq 'web') {
1284: $currentstring .= $token->[4];
1285: } elsif ($target eq 'tex') {
1.137 sakharuk 1286: $currentstring .= '{\large ';
1.144 sakharuk 1287: }
1.122 albertel 1288: return $currentstring;
1289: }
1290:
1291: sub end_big {
1292: my ($target,$token) = @_;
1293: my $currentstring = '';
1294: if ($target eq 'web') {
1295: $currentstring .= $token->[2];
1296: } elsif ($target eq 'tex') {
1297: $currentstring .= '}';
1298: }
1299: return $currentstring;
1300: }
1301:
1.181 sakharuk 1302: #-- <small> tag (end tag required)
1.122 albertel 1303: sub start_small {
1304: my ($target,$token) = @_;
1305: my $currentstring = '';
1306: if ($target eq 'web') {
1307: $currentstring .= $token->[4];
1308: } elsif ($target eq 'tex') {
1309: $currentstring .= '{\footnotesize ';
1.144 sakharuk 1310: }
1.122 albertel 1311: return $currentstring;
1312: }
1313:
1314: sub end_small {
1315: my ($target,$token) = @_;
1316: my $currentstring = '';
1317: if ($target eq 'web') {
1318: $currentstring .= $token->[2];
1319: } elsif ($target eq 'tex') {
1320: $currentstring .= '}';
1321: }
1322: return $currentstring;
1323: }
1324:
1.181 sakharuk 1325: #-- <basefont> tag (end tag forbidden)
1.122 albertel 1326: sub start_basefont {
1.126 sakharuk 1327: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.122 albertel 1328: my $currentstring = '';
1329: if ($target eq 'web') {
1330: $currentstring = $token->[4];
1.126 sakharuk 1331: } elsif ($target eq 'tex') {
1332: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1333: if (defined $basesize) {
1334: $currentstring = '{\\'.$basesize.' ';
1335: }
1336: }
1.122 albertel 1337: return $currentstring;
1338: }
1339:
1340: sub end_basefont {
1.126 sakharuk 1341: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1342: my $currentstring = '';
1343: if ($target eq 'web') {
1344: $currentstring = $token->[4];
1.126 sakharuk 1345: } elsif ($target eq 'tex') {
1346: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1347: if (defined $basesize) {
1348: $currentstring = '}';
1349: }
1350: }
1.122 albertel 1351: return $currentstring;
1352: }
1353:
1.181 sakharuk 1354: #-- <font> tag (end tag required)
1.122 albertel 1355: sub start_font {
1356: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1357: my $currentstring = '';
1358: if ($target eq 'web') {
1359: my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
1.204 albertel 1360: if ($face!~/symbol/i) {
1.267 albertel 1361: if (($env{'browser.fontenhance'} eq 'on') ||
1362: ($env{'browser.blackwhite'} eq 'on')) { return ''; }
1.155 www 1363: }
1.122 albertel 1364: $currentstring = $token->[4];
1.126 sakharuk 1365: } elsif ($target eq 'tex') {
1366: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1367: if (defined $fontsize) {
1368: $currentstring = '{\\'.$fontsize.' ';
1369: }
1370: }
1.122 albertel 1371: return $currentstring;
1372: }
1373:
1374: sub end_font {
1375: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1376: my $currentstring = '';
1377: if ($target eq 'web') {
1378: $currentstring = $token->[2];
1.126 sakharuk 1379: } elsif ($target eq 'tex') {
1380: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1381: if (defined $fontsize) {
1382: $currentstring = '}';
1383: }
1384: }
1.122 albertel 1385: return $currentstring;
1386: }
1387:
1.181 sakharuk 1388: #-- <strike> tag (end tag required)
1.122 albertel 1389: sub start_strike {
1390: my ($target,$token) = @_;
1391: my $currentstring = '';
1392: if ($target eq 'web') {
1393: $currentstring .= $token->[4];
1394: } elsif ($target eq 'tex') {
1395: &Apache::lonxml::startredirection();
1396: }
1397: return $currentstring;
1398: }
1399:
1400: sub end_strike {
1401: my ($target,$token) = @_;
1402: my $currentstring = '';
1403: if ($target eq 'web') {
1404: $currentstring .= $token->[2];
1405: } elsif ($target eq 'tex') {
1406: $currentstring=&Apache::lonxml::endredirection();
1407: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1408: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1409: $currentstring=~s/(\S)\s*$/$1\}/;
1410: }
1411: return $currentstring;
1412: }
1413:
1.181 sakharuk 1414: #-- <s> tag (end tag required)
1.122 albertel 1415: sub start_s {
1416: my ($target,$token) = @_;
1417: my $currentstring = '';
1418: if ($target eq 'web') {
1419: $currentstring .= $token->[4];
1420: } elsif ($target eq 'tex') {
1421: &Apache::lonxml::startredirection();
1422: }
1423: return $currentstring;
1424: }
1425:
1426: sub end_s {
1427: my ($target,$token) = @_;
1428: my $currentstring = '';
1429: if ($target eq 'web') {
1430: $currentstring .= $token->[2];
1431: } elsif ($target eq 'tex') {
1432: $currentstring=&Apache::lonxml::endredirection();
1433: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1434: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1435: $currentstring=~s/(\S)\s*$/$1\}/;
1436: }
1437: return $currentstring;
1438: }
1439:
1.181 sakharuk 1440: #-- <sub> tag (end tag required)
1.122 albertel 1441: sub start_sub {
1442: my ($target,$token) = @_;
1443: my $currentstring = '';
1444: if ($target eq 'web') {
1445: $currentstring .= $token->[4];
1446: } elsif ($target eq 'tex') {
1.202 sakharuk 1447: $currentstring .= '\ensuremath{_{';
1.122 albertel 1448: }
1449: return $currentstring;
1450: }
1451:
1452: sub end_sub {
1453: my ($target,$token) = @_;
1454: my $currentstring = '';
1455: if ($target eq 'web') {
1456: $currentstring .= $token->[2];
1457: } elsif ($target eq 'tex') {
1.202 sakharuk 1458: $currentstring .= '}}';
1.122 albertel 1459: }
1460: return $currentstring;
1461: }
1462:
1.181 sakharuk 1463: #-- <sup> tag (end tag required)
1.122 albertel 1464: sub start_sup {
1465: my ($target,$token) = @_;
1466: my $currentstring = '';
1467: if ($target eq 'web') {
1468: $currentstring .= $token->[4];
1469: } elsif ($target eq 'tex') {
1.202 sakharuk 1470: $currentstring .= '\ensuremath{^{';
1.122 albertel 1471: }
1472: return $currentstring;
1473: }
1474:
1475: sub end_sup {
1476: my ($target,$token) = @_;
1477: my $currentstring = '';
1478: if ($target eq 'web') {
1479: $currentstring .= $token->[2];
1480: } elsif ($target eq 'tex') {
1.202 sakharuk 1481: $currentstring .= '}}';
1.122 albertel 1482: }
1483: return $currentstring;
1484: }
1485:
1.181 sakharuk 1486: #-- <hr> tag (end tag forbidden)
1.122 albertel 1487: sub start_hr {
1.124 sakharuk 1488: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1489: my $currentstring = &end_p(); # End enclosing para.
1.122 albertel 1490: if ($target eq 'web') {
1491: $currentstring .= $token->[4];
1492: } elsif ($target eq 'tex') {
1.149 sakharuk 1493: my $LaTeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1.124 sakharuk 1494: if (defined $LaTeXwidth) {
1495: if ($LaTeXwidth=~/^%/) {
1496: substr($LaTeXwidth,0,1)='';
1497: $LaTeXwidth=($LaTeXwidth/100).'\textwidth';
1498: }
1499: } else {
1.148 sakharuk 1500: $LaTeXwidth ='0.9\textwidth';
1.124 sakharuk 1501: }
1502: my ($pre,$post);
1503: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1504: if (($align eq 'center') || (not defined $align)) {
1505: $pre=''; $post='';
1506: } elsif ($align eq 'left') {
1507: $pre='\rlap{'; $post='} \hfill';
1508: } elsif ($align eq 'right') {
1509: $pre=' \hfill \llap{'; $post='}';
1510: }
1.148 sakharuk 1511: $currentstring .= ' \vskip 0 mm \noindent\makebox['.$LaTeXwidth.']{'.$pre.'\makebox['.
1.124 sakharuk 1512: $LaTeXwidth.'][b]{\hrulefill}'.$post.'}\vskip 0 mm ';
1.122 albertel 1513: }
1514: return $currentstring;
1515: }
1516:
1517: sub end_hr {
1518: my ($target,$token) = @_;
1519: my $currentstring = '';
1520: if ($target eq 'web') {
1521: $currentstring .= $token->[2];
1.148 sakharuk 1522: }
1.122 albertel 1523: return $currentstring;
1524: }
1525:
1.181 sakharuk 1526: #-- <div> tag (end tag required)
1.280 foxr 1527: {
1528:
1529: # Since div can be nested, the stack below is used
1530: # in 'tex' mode to store the ending strings
1531: # for the div stack.
1532:
1533: my @div_end_stack;
1534:
1.122 albertel 1535: sub start_div {
1.280 foxr 1536: my ($target,$token, $tagstack, $parstack, $parser, $safeeval) = @_;
1.279 foxr 1537: my $currentstring = &end_p(); # Close enclosing para.
1.122 albertel 1538: if ($target eq 'web') {
1539: $currentstring .= $token->[4];
1540: }
1.280 foxr 1541: if ($target eq 'tex') {
1542: # 4 possible alignments: left, right, center, and -missing-.
1543:
1544: my $endstring = '';
1545:
1546: my $align = lc(&Apache::lonxml::get_param('align', $parstack,
1547: $safeeval, undef, 1));
1548: if ($align eq 'center') {
1549: $currentstring .= '\begin{center}';
1550: $endstring = '\end{center}';
1.309 albertel 1551: if (&is_inside_of($tagstack, "table")) {
1552: $currentstring = ¢er_correction().$currentstring;
1553: }
1.280 foxr 1554: }
1555: elsif ($align eq 'right') {
1556: $currentstring .= '\begin{flushright}';
1557: $endstring .= '\end{flushright}';
1558: } elsif ($align eq 'left') {
1559: $currentstring .= '\begin{flushleft}';
1560: $endstring = '\end{flushleft}';
1561: } else {
1562:
1563: }
1564: $currentstring .= "\n"; # For human readability.
1565: $endstring = "\n$endstring\n"; # For human readability
1566: push(@div_end_stack, $endstring);
1567: }
1.122 albertel 1568: return $currentstring;
1569: }
1570:
1571: sub end_div {
1572: my ($target,$token) = @_;
1573: my $currentstring = '';
1574: if ($target eq 'web') {
1575: $currentstring .= $token->[2];
1.280 foxr 1576: }
1577: if ($target eq 'tex') {
1578: my $endstring = pop @div_end_stack;
1579: $currentstring .= $endstring;
1580: }
1.122 albertel 1581: return $currentstring;
1582: }
1.280 foxr 1583: }
1.122 albertel 1584:
1.181 sakharuk 1585: #-- <a> tag (end tag required)
1.122 albertel 1586: sub start_a {
1.149 sakharuk 1587: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1588: my $currentstring = '';
1589: if ($target eq 'web') {
1.250 albertel 1590: my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
1591: undef,1);
1592: $currentstring=&Apache::lonenc::encrypt_ref($token,{'href'=>$href});
1.122 albertel 1593: } elsif ($target eq 'tex') {
1.149 sakharuk 1594: my $a=&Apache::lonxml::get_param('href',$parstack,$safeeval,undef,1);
1.161 sakharuk 1595: my $b=&Apache::lonxml::get_param('name',$parstack,$safeeval,undef,1);
1596: if ($a=~/\S/) {
1597: $a=~s/([^\\])%/$1\\\%/g;
1598: $currentstring .= '\ref{URI: '.$a.'}';
1599: } elsif ($b=~/\S/) {
1600: $currentstring .= '\ref{Anchor: '.$b.'}';
1601: } else {
1602: $currentstring.='';
1603: }
1.122 albertel 1604: }
1605: return $currentstring;
1606: }
1607:
1608: sub end_a {
1.168 albertel 1609: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1610: my $currentstring = '';
1611: if ($target eq 'web') {
1612: $currentstring .= $token->[2];
1613: }
1614: return $currentstring;
1615: }
1616:
1.181 sakharuk 1617: #-- <li> tag (end tag optional)
1.122 albertel 1618: sub start_li {
1.168 albertel 1619: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1620: my $currentstring = '';
1621: if ($target eq 'web') {
1622: $currentstring = $token->[4];
1623: } elsif ($target eq 'tex') {
1.237 sakharuk 1624: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1625: my $value=&Apache::lonxml::get_param('value',$parstack,$safeeval,undef,0);
1.238 albertel 1626: #FIXME need to support types i and I
1627: if ($type=~/disc/) {
1628: $currentstring .= ' \item[$\bullet$] ';
1629: } elsif ($type=~/circle/) {
1630: $currentstring .= ' \item[$\circ$] ';
1.146 sakharuk 1631: } elsif ($type=~/square/) {
1.238 albertel 1632: $currentstring .= ' \item[$\diamond$] ';
1633: } elsif ($type eq '1') {
1634: $currentstring .= ' \item['.($Apache::londefdef::list_index+1).'.]';
1.237 sakharuk 1635: } elsif ($type eq 'A') {
1.238 albertel 1636: $currentstring .= ' \item['.('A'..'Z')[$Apache::londefdef::list_index].'.]';
1.237 sakharuk 1637: } elsif ($type eq 'a') {
1.238 albertel 1638: $currentstring .= ' \item['.('a'..'z')[$Apache::londefdef::list_index].'.]';
1.237 sakharuk 1639: } elsif ($value ne '') {
1640: $currentstring .= ' \item['.$value.'] ';
1.122 albertel 1641: } else {
1.146 sakharuk 1642: $currentstring .= ' \item ';
1.122 albertel 1643: }
1.238 albertel 1644: $Apache::londefdef::list_index++;
1645: }
1.122 albertel 1646: return $currentstring;
1647: }
1648:
1649: sub end_li {
1650: my ($target,$token) = @_;
1.279 foxr 1651: my $currentstring = &end_p(); # In case there's a <p> in the <li>
1.122 albertel 1652: if ($target eq 'web') {
1.277 foxr 1653: $currentstring .= $token->[2];
1.122 albertel 1654: }
1655: return $currentstring;
1656: }
1657:
1.181 sakharuk 1658: #-- <u> tag (end tag required)
1.122 albertel 1659: sub start_u {
1660: my ($target,$token) = @_;
1661: my $currentstring = '';
1662: if ($target eq 'web') {
1663: $currentstring .= $token->[4];
1664: } elsif ($target eq 'tex') {
1665: &Apache::lonxml::startredirection();
1666: }
1667: return $currentstring;
1668: }
1669:
1670: sub end_u {
1671: my ($target,$token) = @_;
1672: my $currentstring = '';
1673: if ($target eq 'web') {
1674: $currentstring .= $token->[2];
1675: } elsif ($target eq 'tex') {
1676: $currentstring=&Apache::lonxml::endredirection();
1677: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1678: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1679: $currentstring=~s/(\S)\s*$/$1\}/;
1680: }
1681: return $currentstring;
1682: }
1683:
1.181 sakharuk 1684: #-- <ul> tag (end tag required)
1.122 albertel 1685: sub start_ul {
1.125 sakharuk 1686: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1687: my $currentstring = &end_p(); # Close off enclosing list.
1.122 albertel 1688: if ($target eq 'web') {
1.277 foxr 1689: $currentstring .= $token->[4];
1.122 albertel 1690: } elsif ($target eq 'tex') {
1.125 sakharuk 1691: my $TeXtype=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1.238 albertel 1692: $Apache::londefdef::list_index=0;
1.125 sakharuk 1693: if ($TeXtype eq 'disc') {
1.222 sakharuk 1694: $currentstring .= '\renewcommand{\labelitemi}{$\bullet$}'.
1695: '\renewcommand{\labelitemii}{$\bullet$}'.
1696: '\renewcommand{\labelitemiii}{$\bullet$}'.
1697: '\renewcommand{\labelitemiv}{$\bullet$}';
1.125 sakharuk 1698: } elsif ($TeXtype eq 'circle') {
1.222 sakharuk 1699: $currentstring .= '\renewcommand{\labelitemi}{$\circ$}'.
1700: '\renewcommand{\labelitemii}{$\circ$}'.
1701: '\renewcommand{\labelitemiii}{$\circ$}'.
1702: '\renewcommand{\labelitemiv}{$\circ$}';
1.125 sakharuk 1703: } elsif ($TeXtype eq 'square') {
1.222 sakharuk 1704: $currentstring .= '\renewcommand{\labelitemi}{$\diamond$}'.
1705: '\renewcommand{\labelitemii}{$\diamond$}'.
1706: '\renewcommand{\labelitemiii}{$\diamond$}'.
1707: '\renewcommand{\labelitemiv}{$\diamond$}';
1.125 sakharuk 1708: }
1.222 sakharuk 1709: $currentstring .= '\strut \begin{itemize}';
1.122 albertel 1710: }
1711: return $currentstring;
1712: }
1713:
1714: sub end_ul {
1715: my ($target,$token) = @_;
1716: my $currentstring = '';
1717: if ($target eq 'web') {
1718: $currentstring = $token->[2];
1719: } elsif ($target eq 'tex') {
1.222 sakharuk 1720: $currentstring = '\end{itemize} \renewcommand{\labelitemi}{$\bullet$}'.
1721: '\renewcommand{\labelitemii}{$\bullet$}'.
1722: '\renewcommand{\labelitemiii}{$\bullet$}'.
1723: '\renewcommand{\labelitemiv}{$\bullet$}\strut ';
1.122 albertel 1724: }
1725: return $currentstring;
1726: }
1727:
1.181 sakharuk 1728: #-- <menu> tag (end tag required)
1.122 albertel 1729: sub start_menu {
1730: my ($target,$token) = @_;
1731: my $currentstring = '';
1732: if ($target eq 'web') {
1733: $currentstring = $token->[4];
1734: } elsif ($target eq 'tex') {
1735: $currentstring = " \\begin{itemize} ";
1736: }
1737: return $currentstring;
1738: }
1739:
1740: sub end_menu {
1741: my ($target,$token) = @_;
1742: my $currentstring = '';
1743: if ($target eq 'web') {
1744: $currentstring = $token->[2];
1745: } elsif ($target eq 'tex') {
1746: $currentstring = " \\end{itemize}";
1747: }
1748: return $currentstring;
1749: }
1750:
1.181 sakharuk 1751: #-- <dir> tag (end tag required)
1.122 albertel 1752: sub start_dir {
1753: my ($target,$token) = @_;
1.279 foxr 1754: my $currentstring = &end_p(); # In case there's a <p> prior to the list.
1.122 albertel 1755: if ($target eq 'web') {
1.277 foxr 1756: $currentstring .= $token->[4];
1.122 albertel 1757: } elsif ($target eq 'tex') {
1.277 foxr 1758: $currentstring .= " \\begin{itemize} ";
1.122 albertel 1759: }
1760: return $currentstring;
1761: }
1762:
1763: sub end_dir {
1764: my ($target,$token) = @_;
1765: my $currentstring = '';
1766: if ($target eq 'web') {
1767: $currentstring = $token->[2];
1768: } elsif ($target eq 'tex') {
1769: $currentstring = " \\end{itemize}";
1770: }
1771: return $currentstring;
1772: }
1773:
1.181 sakharuk 1774: #-- <ol> tag (end tag required)
1.122 albertel 1775: sub start_ol {
1.125 sakharuk 1776: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1777: my $currentstring = &end_p(); # In case there's a <p> prior to the list.
1.122 albertel 1778: if ($target eq 'web') {
1.277 foxr 1779: $currentstring .= $token->[4];
1.122 albertel 1780: } elsif ($target eq 'tex') {
1.238 albertel 1781: $Apache::londefdef::list_index=0;
1.125 sakharuk 1782: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1783: if ($type eq '1') {
1.222 sakharuk 1784: $currentstring .= '\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1785: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1786: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1787: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}';
1.125 sakharuk 1788: } elsif ($type eq 'A') {
1.222 sakharuk 1789: $currentstring .= '\renewcommand{\labelenumi}{\Alph{enumi}.}'.
1790: '\renewcommand{\labelenumii}{\Alph{enumii}.}'.
1791: '\renewcommand{\labelenumiii}{\Alph{enumiii}.}'.
1792: '\renewcommand{\labelenumiv}{\Alph{enumiv}.}';
1.125 sakharuk 1793: } elsif ($type eq 'a') {
1.222 sakharuk 1794: $currentstring .= '\renewcommand{\labelenumi}{\alph{enumi}.}'.
1795: '\renewcommand{\labelenumii}{\alph{enumii}.}'.
1796: '\renewcommand{\labelenumiii}{\alph{enumiii}.}'.
1797: '\renewcommand{\labelenumiv}{\alph{enumiv}.}';
1.125 sakharuk 1798: } elsif ($type eq 'i') {
1.222 sakharuk 1799: $currentstring .= '\renewcommand{\labelenumi}{\roman{enumi}.}'.
1800: '\renewcommand{\labelenumii}{\roman{enumii}.}'.
1801: '\renewcommand{\labelenumiii}{\roman{enumiii}.}'.
1802: '\renewcommand{\labelenumiv}{\roman{enumiv}.}';
1.125 sakharuk 1803: } elsif ($type eq 'I') {
1.222 sakharuk 1804: $currentstring .= '\renewcommand{\labelenumi}{\Roman{enumi}.}'.
1805: '\renewcommand{\labelenumii}{\Roman{enumii}.}'.
1806: '\renewcommand{\labelenumiii}{\Roman{enumiii}.}'.
1807: '\renewcommand{\labelenumiv}{\Roman{enumiv}.}';
1.125 sakharuk 1808: }
1.222 sakharuk 1809: $currentstring .= '\strut \begin{enumerate}';
1.122 albertel 1810: }
1811: return $currentstring;
1812: }
1813:
1814: sub end_ol {
1815: my ($target,$token) = @_;
1816: my $currentstring = '';
1817: if ($target eq 'web') {
1818: $currentstring = $token->[2];
1819: } elsif ($target eq 'tex') {
1.222 sakharuk 1820: $currentstring = '\end{enumerate}\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1821: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1822: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1823: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}\strut ';
1.122 albertel 1824: }
1825: return $currentstring;
1826: }
1827:
1.181 sakharuk 1828: #-- <dl> tag (end tag required)
1.122 albertel 1829: sub start_dl {
1830: my ($target,$token) = @_;
1.279 foxr 1831: my $currentstring = &end_p(); # In case there's a <p> unclosed prior to the list.
1.122 albertel 1832: if ($target eq 'web') {
1.277 foxr 1833: $currentstring .= $token->[4];
1.122 albertel 1834: } elsif ($target eq 'tex') {
1.277 foxr 1835: $currentstring .= '\begin{description}';
1.243 albertel 1836: $Apache::londefdef::DL++;
1837: push(@Apache::londefdef::description,[]);
1838: $Apache::londefdef::DD[$Apache::londefdef::DL]=0;
1839: $Apache::londefdef::DT[$Apache::londefdef::DL]=0;
1.244 albertel 1840: $Apache::londefdef::seenDT[$Apache::londefdef::DL]=0;
1.122 albertel 1841: }
1842: return $currentstring;
1843: }
1844:
1845: sub end_dl {
1.174 sakharuk 1846: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1847: my $currentstring = '';
1848: if ($target eq 'web') {
1849: $currentstring = $token->[2];
1850: } elsif ($target eq 'tex') {
1.243 albertel 1851: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1852: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
1853: foreach my $element (@{$Apache::londefdef::description[-1]}) {
1.174 sakharuk 1854: $currentstring.=' '.$element.' ';
1855: }
1.243 albertel 1856: pop(@Apache::londefdef::description);
1.174 sakharuk 1857: $currentstring.='\end{description}';
1.243 albertel 1858: delete($Apache::londefdef::DD[$Apache::londefdef::DL]);
1859: delete($Apache::londefdef::DT[$Apache::londefdef::DL]);
1.244 albertel 1860: delete($Apache::londefdef::seenDT[$Apache::londefdef::DL]);
1.243 albertel 1861: $Apache::londefdef::DL--;
1.122 albertel 1862: }
1863: return $currentstring;
1864: }
1865:
1.172 sakharuk 1866: #-- <dt> tag (end tag optional)
1.122 albertel 1867: sub start_dt {
1.172 sakharuk 1868: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1869: my $currentstring='';
1.122 albertel 1870: if ($target eq 'web') {
1871: $currentstring = $token->[4];
1872: } elsif ($target eq 'tex') {
1.243 albertel 1873: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1874: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
1.174 sakharuk 1875: &Apache::lonxml::startredirection();
1.243 albertel 1876: $Apache::londefdef::DT[-1]++;
1.244 albertel 1877: $Apache::londefdef::seenDT[-1]=1;
1.122 albertel 1878: }
1879: return $currentstring;
1880: }
1881:
1882: sub end_dt {
1.172 sakharuk 1883: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1884: my $currentstring = '';
1885: if ($target eq 'web') {
1886: $currentstring = $token->[2];
1887: } elsif ($target eq 'tex') {
1.243 albertel 1888: if ($Apache::londefdef::DT[-1]) {
1889: my $data=&item_cleanup();
1.244 albertel 1890: push(@{$Apache::londefdef::description[-1]},'\item['.$data.'] \strut \vskip 0mm');
1.243 albertel 1891: $Apache::londefdef::DT[-1]--;
1892: }
1.122 albertel 1893: }
1894: return $currentstring;
1895: }
1896:
1.173 sakharuk 1897: sub item_cleanup {
1.174 sakharuk 1898: my $item=&Apache::lonxml::endredirection();
1.173 sakharuk 1899: $item=~s/\\begin{center}//g;
1900: $item=~s/\\end{center}//g;
1901: return $item;
1902: }
1903:
1.181 sakharuk 1904: #-- <dd> tag (end tag optional)
1.122 albertel 1905: sub start_dd {
1.147 sakharuk 1906: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1907: my $currentstring = '';
1908: if ($target eq 'web') {
1909: $currentstring = $token->[4];
1.147 sakharuk 1910: } elsif ($target eq 'tex') {
1.243 albertel 1911: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1912: if ($Apache::londefdef::DD[-1]) { &end_dd(@_);}
1.244 albertel 1913: if (!$Apache::londefdef::seenDT[-1]) {
1914: push(@{$Apache::londefdef::description[-1]},'\item[\strut] \strut \vskip 0mm ');
1915: }
1.243 albertel 1916: push(@{$Apache::londefdef::description[-1]},'');
1917: $Apache::londefdef::description[-1]->[-1].=' \strut ';
1918: $Apache::londefdef::DD[-1]++;
1.174 sakharuk 1919: &Apache::lonxml::startredirection();
1.122 albertel 1920: }
1921: return $currentstring;
1922: }
1923:
1924: sub end_dd {
1.174 sakharuk 1925: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1926: my $currentstring = '';
1927: if ($target eq 'web') {
1928: $currentstring = $token->[2];
1.174 sakharuk 1929: } elsif ($target eq 'tex') {
1.243 albertel 1930: $Apache::londefdef::description[-1]->[-1].=
1931: &Apache::lonxml::endredirection().' \vskip 0mm ';
1932: $Apache::londefdef::DD[-1]--;
1.174 sakharuk 1933: }
1.122 albertel 1934: return $currentstring;
1935: }
1936:
1.181 sakharuk 1937: #-- <table> tag (end tag required)
1.277 foxr 1938: # <table> also ends any prior <p> that is not closed.
1939: # but, unless I allow <p>'s to nest, that's the
1940: # only way I could think of to allow <p> in
1941: # <tr> <th> bodies
1942: #
1.206 sakharuk 1943: #list of supported attributes: border,width,TeXwidth
1.91 sakharuk 1944: sub start_table {
1945: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 foxr 1946: my $textwidth = '';
1.279 foxr 1947: my $currentstring = &end_p();
1.91 sakharuk 1948: if ($target eq 'web') {
1.277 foxr 1949: $currentstring .= $token->[4];
1.91 sakharuk 1950: } elsif ($target eq 'tex') {
1951: my $aa = {};
1952: push @Apache::londefdef::table, $aa;
1953: $Apache::londefdef::table[-1]{'row_number'} = -1;
1.222 sakharuk 1954: #maximum table's width (default coincides with text line length)
1.206 sakharuk 1955: if ($#Apache::londefdef::table==0) {
1.267 albertel 1956: $textwidth=&recalc($env{'form.textwidth'}); #result is always in mm
1.206 sakharuk 1957: $textwidth=~/(\d+\.?\d*)/;
1958: $textwidth=0.95*$1; #accounts "internal" LaTeX space for table frame
1959: } else {
1960: if ($Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}]=~/\d/) {
1961: #the maximum width of nested table is determined by LATeX width of parent cell
1962: $textwidth=$Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}];
1963: } else {
1964: #try to use all space not used before (minus 5% for LaTeX table internal) - rather silly
1.228 sakharuk 1965: $textwidth=$Apache::londefdef::table[-2]{'width'};
1.206 sakharuk 1966: for (my $i=0;$i<$Apache::londefdef::table[-2]{'counter_columns'};$i++) {
1967: $textwidth=$textwidth-$Apache::londefdef::table[-2]{'TeXlen'}[0][$i];
1968: }
1969: }
1970: }
1.294 foxr 1971:
1972: # width either comes forced from the TeXwidth or the width parameters.
1973: # in either case it can be a percentage or absolute width.
1.311 albertel 1974: # in the width case we ignore absolute width
1.126 sakharuk 1975: my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1.308 albertel 1976: if (!defined($TeXwidth)) {
1.311 albertel 1977: my $htmlwidth = &Apache::lonxml::get_param('width',$parstack,
1978: $safeeval,undef,1);
1979: if ($htmlwidth =~ /%/) {
1980: $TeXwidth = $htmlwidth;
1981: } else {
1982: $TeXwidth = $textwidth;
1983: }
1.294 foxr 1984: } else {
1985: $Apache::londefdef::table[-1]{'forcedtablewidth'} = 1;
1986: }
1987: if ($TeXwidth=~/%/) {
1.203 sakharuk 1988: $Apache::londefdef::table[-1]{'percent'}=1;
1.126 sakharuk 1989: $TeXwidth=~/(\d+)/;
1.206 sakharuk 1990: $Apache::londefdef::table[-1]{'width'}=$1*$textwidth/100;
1.126 sakharuk 1991: } else {
1.206 sakharuk 1992: $Apache::londefdef::table[-1]{'width'}=$TeXwidth;
1.316 foxr 1993: }
1994: # In the end, however the table width cannot be wider than $textwidth...
1995:
1996: if ($Apache::londefdef::table[-1]{'width'} > $textwidth) {
1997: $Apache::londefdef::table[-1]{'width'} = $textwidth;
1998: }
1.294 foxr 1999:
1.126 sakharuk 2000: #table's border
1.206 sakharuk 2001: my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval);
1.208 sakharuk 2002: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
1.91 sakharuk 2003: unless (defined $border) { $border = 0; }
2004: if ($border) {
2005: $Apache::londefdef::table[-1]{'hinc'} = '\hline ';
2006: $Apache::londefdef::table[-1]{'vinc'} = '&';
2007: $Apache::londefdef::table[-1]{'vvinc'} = '|';
2008: } else {
2009: $Apache::londefdef::table[-1]{'hinc'} = '';
2010: $Apache::londefdef::table[-1]{'vinc'} = '&';
2011: $Apache::londefdef::table[-1]{'vvinc'} = '';
2012: }
1.206 sakharuk 2013: if ($#Apache::londefdef::table==0) {
1.281 foxr 2014: # Note that \newline seems to destroy the alignment envs.
2015: # $Apache::londefdef::table[-1]{'output'}='\strut\newline\strut\setlength{\tabcolsep}{1 mm}';
2016: $Apache::londefdef::table[-1]{'output'}='\strut'.'\\\\'."\n".'\strut\setlength{\tabcolsep}{1 mm}';
1.206 sakharuk 2017: }
2018: $Apache::londefdef::table[-1]{'output'}.=' \noindent \begin{tabular} ';
2019: $Apache::londefdef::table[-1]{'TeXlen'}=[];
2020: $Apache::londefdef::table[-1]{'objectlen'}=[];
1.229 sakharuk 2021: $Apache::londefdef::table[-1]{'objectsignal'}=[];
1.206 sakharuk 2022: $Apache::londefdef::table[-1]{'maxlen'}=[];
2023: $Apache::londefdef::table[-1]{'minlen'}=[];
2024: $Apache::londefdef::table[-1]{'content'}=[];
2025: $Apache::londefdef::table[-1]{'align'}=[];
1.277 foxr 2026: $currentstring.='\keephidden{NEW TABLE ENTRY}';
1.295 foxr 2027:
1.294 foxr 2028:
2029: }
1.91 sakharuk 2030: return $currentstring;
2031: }
1.122 albertel 2032:
2033: sub end_table {
2034: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2035: my $currentstring = '';
2036: if ($target eq 'web') {
2037: $currentstring = $token->[2];
2038: } elsif ($target eq 'tex') {
2039: my $inmemory = '';
2040: my $output = '';
1.206 sakharuk 2041: my $WARNING='';
1.305 foxr 2042: # &debug_dump_table($Apache::londefdef::table[-1]);
1.206 sakharuk 2043: #width of columns from TeXwidth attributes
1.294 foxr 2044:
1.206 sakharuk 2045: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2046: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2047: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]<$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn]) {
2048: $Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]=$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn];
2049: }
2050: }
2051: }
2052: #free space and number of empty columns
2053: my ($available_space,$empty_columns)=($Apache::londefdef::table[-1]{'width'},0);
1.228 sakharuk 2054: if ($#Apache::londefdef::table ne 0) {$available_space=0.9*$available_space;}
1.206 sakharuk 2055: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2056: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]==0) {
2057: $empty_columns++;
2058: } else {
2059: $available_space=$available_space-$Apache::londefdef::table[-1]{'TeXlen'}[0][$jn];
2060: }
2061: }
2062: #boundaries for contents columns
2063: my @min_len=();#columns can not be narrower
2064: my @max_len=();#maximum length of column
2065: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2066: my ($localmin,$localmax)=(0,0);
2067: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2068: if ($localmin<$Apache::londefdef::table[-1]{'minlen'}[$in][$jn]) {
2069: $localmin=$Apache::londefdef::table[-1]{'minlen'}[$in][$jn];
2070: }
2071: if ($localmax<$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn]) {
2072: $localmax=$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn];
2073: }
2074: }
2075: push @min_len, $localmin;
2076: push @max_len, $localmax;
1.122 albertel 2077: }
1.206 sakharuk 2078: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2079: my $localmin=0,;
2080: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2081: if ($localmin<$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn]) {
2082: $localmin=$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn];
2083: }
2084: }
1.229 sakharuk 2085: if ($max_len[$jn]<$localmin) {
2086: $max_len[$jn]=$localmin;
2087: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
2088: }#object size is bigger
2089: if ($min_len[$jn]<$localmin) {
2090: $min_len[$jn]=$localmin;
2091: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
2092: }#object size is bigger
1.206 sakharuk 2093: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]!=0) {
2094: $min_len[$jn]=0;
2095: $max_len[$jn]=0;
2096: }
2097: }
2098: #final adjustment of column width
2099: my @fwidth=@{$Apache::londefdef::table[-1]{'TeXlen'}[0]};#final width array
2100: my @adjust=();
2101: #step 1. adjustment by maximum value
2102: my $space_neeeded=0;
2103: for (my $jn=0;$jn<=$#max_len;$jn++) {
2104: $space_neeeded=$space_neeeded+$max_len[$jn];
2105: }
2106: if ($space_neeeded<=$available_space) {
2107: for (my $jn=0;$jn<=$#max_len;$jn++) {
2108: if ($fwidth[$jn]==0) {
2109: $fwidth[$jn]=$max_len[$jn];
1.53 sakharuk 2110: }
1.51 sakharuk 2111: }
1.206 sakharuk 2112: } else {
2113: #step 2. adjustment by minimum value (estimation)
2114: $space_neeeded=0;
2115: for (my $jn=0;$jn<=$#min_len;$jn++) {
2116: $space_neeeded+=$min_len[$jn];
2117: }
2118: if ($space_neeeded>$available_space) {
2119: $WARNING=' \textbf{NOT ENOUGH SPACE FOR TABLE} ';
2120: for (my $jn=0;$jn<=$#max_len;$jn++) {
2121: if ($fwidth[$jn]==0) {
2122: $fwidth[$jn]=$min_len[$jn];
2123: }
2124: }
1.229 sakharuk 2125: #check if we have objects which can be scaled
2126: my $how_many_to_scale=0;
2127: my @to_scale=();
2128: for (my $jn=0;$jn<=$#max_len;$jn++) {
2129: if ($Apache::londefdef::table[-1]{'objectsignal'}[$jn] eq '1') {
2130: $how_many_to_scale++;
2131: push @to_scale, $jn;
2132: }
2133: }
2134: if ($how_many_to_scale>0) {
2135: my $space_to_adjust=($space_neeeded-$available_space)/$how_many_to_scale;
2136: foreach my $jn (@to_scale) {
2137: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2138: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/;
2139: if ($1 ne '') {
2140: my $current_length=&recalc($1);
2141: $current_length=~/(\d+\.?\d*)/;
2142: $current_length=$current_length-$space_to_adjust;
2143: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/width=$current_length mm/;
2144: }
2145: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/\[(\d+\.?\d*)\s*mm\]/;
2146: if ($1 ne '') {
2147: my $current_length=$1;
2148: $current_length=$current_length-$space_to_adjust;
2149: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/\[(\d+\.?\d*)\s*mm\]/\[$current_length mm\]/;
2150: }
2151: }
2152: $fwidth[$jn]=$fwidth[$jn]-$space_to_adjust;
2153: }
2154: }
1.206 sakharuk 2155: } else {
2156: #step 3. adjustment over minimal + corrections
2157: my $enlarge_coef=$available_space/$space_neeeded;
2158: my $acsessive=0;
2159: for (my $jn=0;$jn<=$#min_len;$jn++) {
2160: $adjust[$jn]=$min_len[$jn]*$enlarge_coef;
2161: if ($adjust[$jn]>$max_len[$jn]) {
2162: $fwidth[$jn]=$max_len[$jn];
2163: $acsessive=$acsessive+$adjust[$jn]-$max_len[$jn];
2164: $adjust[$jn]=0;
2165: }
2166: }
2167: if ($acsessive>0) {
2168: #we have an excess of space and can redistribute it
2169: my $notempty_columns=0;
2170: for (my $jn=0;$jn<=$#min_len;$jn++) {
2171: if ($adjust[$jn]!=0) {
2172: $notempty_columns++;
2173: }
2174: }
2175: my $per_column=$acsessive/$notempty_columns;
2176: for (my $jn=0;$jn<=$#min_len;$jn++) {
2177: if ($adjust[$jn]!=0) {
2178: $adjust[$jn]+=$per_column;
2179: $fwidth[$jn]=$adjust[$jn];
2180: }
1.223 sakharuk 2181: }
2182: } else {
2183: for (my $jn=0;$jn<=$#min_len;$jn++) {
2184: $fwidth[$jn]=$adjust[$jn];
1.206 sakharuk 2185: }
2186: }
1.203 sakharuk 2187: }
2188: }
1.222 sakharuk 2189: #use all available width if it is defined in % or as TeXwidth
2190: if (($Apache::londefdef::table[-1]{'percent'}==1) || ($Apache::londefdef::table[-1]{'forcetablewidth'}==1)) {
1.203 sakharuk 2191: my $current=0;
1.206 sakharuk 2192: for (my $i=0;$i<=$#fwidth;$i++) {
2193: $current+=$fwidth[$i];
1.203 sakharuk 2194: }
2195: my $coef=$Apache::londefdef::table[-1]{'width'}/$current;
1.206 sakharuk 2196: for (my $i=0;$i<=$#fwidth;$i++) {
2197: $fwidth[$i]*=$coef;
2198: }
2199: }
2200: #removing of empty columns if allowed
1.208 sakharuk 2201: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
1.206 sakharuk 2202: if ($permission eq 'yes') {
2203: my @cleaned_table=();
2204: my @cleaned_header=();
2205: my $colind=0;
2206: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2207: if ($fwidth[$jn]!=0) {
2208: #we need to copy column
2209: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2210: $cleaned_table[$in][$colind]=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
2211: $cleaned_header[$colind]=$fwidth[$jn];
2212: }
2213: $colind++;
2214: }
1.122 albertel 2215: }
1.206 sakharuk 2216: $Apache::londefdef::table[-1]{'content'}=\@cleaned_table;
2217: @fwidth=@cleaned_header;
1.122 albertel 2218: }
1.206 sakharuk 2219: #construct header of the table
2220: my $header_of_table = '{'.$Apache::londefdef::table[-1]{'vvinc'};
2221: for (my $in=0;$in<=$#fwidth;$in++) {
2222: $header_of_table.='p{'.$fwidth[$in].' mm}'.$Apache::londefdef::table[-1]{'vvinc'};
2223: }
2224: $header_of_table .= '}';
1.126 sakharuk 2225: #fill the table
2226: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1.306 foxr 2227: my $have_rowspan = 0;
1.206 sakharuk 2228: for (my $jn=0;$jn<=$#fwidth;$jn++) {
1.304 foxr 2229: #
2230: # Do the appropriate magic if this has a colspan
2231: #
2232: my $colspan = $Apache::londefdef::table[-1]{'colspan'}[$in][$jn];
2233: if ($colspan > 1) {
2234: $output .= '\multicolumn{'.
2235: $colspan
2236: .'}{|l|}{';
2237: }
1.306 foxr 2238: my $rowspan = $Apache::londefdef::table[-1]{'rowspan'}[$in][$jn];
2239:
2240: # Start a rowspan if necessary:
2241:
2242: if ($rowspan > 1) {
2243: $have_rowspan++;
2244: $output .= '\multirow{'.$rowspan.'}[0]{'.$fwidth[$jn].'mm}{';
2245: }
2246: if (($rowspan eq '^') || ($rowspan eq '_')) {
2247: $have_rowspan++;
2248: }
2249:
1.206 sakharuk 2250: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
1.309 albertel 2251: $output.=¢er_correction().'\begin{center}';
1.206 sakharuk 2252: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
2253: $output.=' \hfill \llap{'
2254: }
2255: $output.=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
2256: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
1.314 albertel 2257: $output.='\end{center}';
1.206 sakharuk 2258: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
2259: $output.='} ';
2260: }
1.306 foxr 2261: # Close off any open multirow:
2262:
2263: if ($rowspan > 1) {
2264: $output .= '}';
2265: }
1.304 foxr 2266: # Close off the colspan...
2267: #
2268: if ($colspan > 1) {
2269: $output .= '}';
2270: $jn += $colspan-1; # Adjust for number of rows really left.
2271: }
1.206 sakharuk 2272: if ($jn!=$#fwidth) {$output.=' '.$Apache::londefdef::table[-1]{'vinc'};}
2273: }
1.306 foxr 2274: # If have_rowspan > 0, and borders are on, then
2275: # we need to do more than put an \hline at the bottom of row.
2276: # we need to do the appropriate \cline to ensure that
2277: # the spanned rows don't have \hlines through them.
2278:
2279: if (($Apache::londefdef::table[-1]{'hinc'} =~ /\\hline/) && $have_rowspan) {
2280: $output .= ' \\\\ ';
2281: for (my $jn=0; $jn<=$#fwidth;$jn++) {
2282: my $rowspan = $Apache::londefdef::table[-1]{'rowspan'}[$in][$jn];
2283: if (($rowspan <= 1) || ($rowspan eq '_')) {
2284: my $column = $jn+1;
2285: $output .= '\cline{'.$column.'-'.$column.'} ';
2286: }
2287: }
2288:
2289: } else {
2290: $output.=' \\\\ '.$Apache::londefdef::table[-1]{'hinc'}.' ';
2291: }
1.122 albertel 2292: }
1.281 foxr 2293: # Note that \newline destroys alignment env's produced by e.g. <div>
2294: # $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut\newline\strut ';
2295: $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut'.'\\\\'."\n".'\strut ';
1.127 sakharuk 2296: if ($#Apache::londefdef::table > 0) {
2297: my $inmemory = $Apache::londefdef::table[-1]{'output'};
1.294 foxr 2298: # Figure out max/and min width by summing us and then
2299: # apply that to the current column of the table we nest in
2300: # if it's larger than the current width or the current width
2301: # is undefined.
2302: #
2303: my $min_nested_width = 0;
2304: my $max_nested_width = 0;
2305: for (my $col = 0; $col <= $Apache::londefdef::table[-1]{'counter_columns'}; $col++) {
2306: $min_nested_width += $min_len[$col];
2307: $max_nested_width += $max_len[$col];
1.300 foxr 2308:
1.294 foxr 2309: }
2310: # Fudge in an extra 5 mm for borders etc:
2311:
2312: $min_nested_width += 5;
2313: $max_nested_width += 5;
2314:
2315: my $outer_column = $Apache::londefdef::table[-2]{'counter_columns'};
2316: my $outer_row = $Apache::londefdef::table[-2]{'row_number'};
2317: if ($min_nested_width > $Apache::londefdef::table[-2]{'minlen'}[$outer_row][$outer_column]) {
2318: $Apache::londefdef::table[-2]{'minlen'}[$outer_row][$outer_column] = $min_nested_width;
2319: }
2320: if ($max_nested_width > $Apache::londefdef::table[-2]{'maxlen'}[$outer_row][$outer_column]) {
2321: $Apache::londefdef::table[-2]{'maxlen'}[$outer_row][$outer_column] = $max_nested_width;
2322: }
2323:
1.127 sakharuk 2324: pop @Apache::londefdef::table;
1.129 sakharuk 2325: push @{$Apache::londefdef::table[-1]{'include'}}, $inmemory;
1.127 sakharuk 2326: } else {
2327: $currentstring .= $Apache::londefdef::table[-1]{'output'};
2328: pop @Apache::londefdef::table;
1.143 sakharuk 2329: undef @Apache::londefdef::table;
1.127 sakharuk 2330: }
1.122 albertel 2331: }
2332: return $currentstring;
2333: }
2334:
1.166 sakharuk 2335: #-- <tr> tag (end tag optional)
1.122 albertel 2336: sub start_tr {
2337: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2338: my $currentstring = '';
2339: if ($target eq 'web') {
2340: $currentstring = $token->[4];
2341: } elsif ($target eq 'tex') {
2342: $Apache::londefdef::table[-1]{'row_number'}++;
1.206 sakharuk 2343: my $alignchar=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.122 albertel 2344: if ($alignchar ne '') {
1.206 sakharuk 2345: push @ {$Apache::londefdef::table[-1]{'rows'} },substr($alignchar,0,1);
1.122 albertel 2346: } else {
2347: push @ {$Apache::londefdef::table[-1]{'rows'} }, 'l';
2348: }
2349: push ( @{ $Apache::londefdef::table[-1]{'rowdata'} }, $Apache::londefdef::table[-1]{'hinc'});
1.300 foxr 2350: #
2351: # Need to save the number of table columns to preserve the max # columns.
2352: #
2353: $Apache::londefdef::table[-1]{'prior_columns'} = $Apache::londefdef::table[-1]{'counter_columns'};
1.122 albertel 2354: $Apache::londefdef::table[-1]{'counter_columns'} = -1;
1.206 sakharuk 2355: push @ {$Apache::londefdef::table[-1]{'TeXlen'}}, [];
2356: push @ {$Apache::londefdef::table[-1]{'objectlen'}}, [];
2357: push @ {$Apache::londefdef::table[-1]{'minlen'}}, [];
2358: push @ {$Apache::londefdef::table[-1]{'maxlen'}}, [];
2359: push @ {$Apache::londefdef::table[-1]{'content'}}, [];
1.122 albertel 2360: }
2361: return $currentstring;
2362: }
2363:
2364: sub end_tr {
1.160 sakharuk 2365: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 2366: my $currentstring = &end_p(); # Close any pending <p> in the row.
1.122 albertel 2367: if ($target eq 'web') {
1.277 foxr 2368: $currentstring .= $token->[2];
1.122 albertel 2369: } elsif ($target eq 'tex') {
1.160 sakharuk 2370: if ($Apache::londefdef::TD_redirection) {
2371: &end_td_tex($parstack,$parser,$safeeval);
2372: }
1.300 foxr 2373: # Counter columns must be the maximum number of columns seen
2374: # in the table so far so:
2375: if ($Apache::londefdef::table[-1]{'prior_columns'} > $Apache::londefdef::table[-1]{'counter_columns'}) {
2376: $Apache::londefdef::table[-1]{'counter_columns'} = $Apache::londefdef::table[-1]{'prior_columns'};
2377: }
1.295 foxr 2378:
2379:
1.294 foxr 2380:
1.122 albertel 2381: }
2382: return $currentstring;
2383: }
2384:
1.166 sakharuk 2385: #-- <td> tag (end tag optional)
1.122 albertel 2386: sub start_td {
2387: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2388: my $currentstring = '';
2389: if ($target eq 'web') {
2390: $currentstring = $token->[4];
2391: } elsif ($target eq 'tex') {
1.160 sakharuk 2392: $Apache::londefdef::TD_redirection = 1;
1.159 sakharuk 2393: &tag_check('tr','td',$tagstack,$parstack,$parser,$safeeval);
1.122 albertel 2394: }
2395: return $currentstring;
2396: }
1.159 sakharuk 2397:
2398: sub tag_check {
2399: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
1.160 sakharuk 2400: my @ar=@$parstack;
2401: for (my $i=$#ar-1;$i>=0;$i--) {
2402: if (lc($$tagstack[$i]) eq $good_tag) {
2403: &start_td_tex($parstack,$parser,$safeeval);
2404: last;
2405: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2406: splice @ar, $i+1;
2407: &end_td_tex(\@ar,$parser,$safeeval);
2408: &start_td_tex($parstack,$parser,$safeeval);
2409: last;
1.159 sakharuk 2410: }
1.160 sakharuk 2411: }
1.159 sakharuk 2412: return '';
2413: }
2414:
2415: sub start_td_tex {
2416: my ($parstack,$parser,$safeeval) = @_;
1.206 sakharuk 2417: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2418: if ($alignchar eq '') {
2419: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
1.159 sakharuk 2420: }
1.206 sakharuk 2421: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
1.159 sakharuk 2422: $Apache::londefdef::table[-1]{'counter_columns'}++;
1.206 sakharuk 2423: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2424: if (defined $TeXwidth) {
2425: my $current_length=&recalc($TeXwidth);
2426: $current_length=~/(\d+\.?\d*)/;
2427: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2428: }
1.159 sakharuk 2429: &Apache::lonxml::startredirection();
2430: return '';
2431: }
2432:
2433: sub end_td_tex {
2434: my ($parstack,$parser,$safeeval) = @_;
1.304 foxr 2435: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2436: my $current_column = $Apache::londefdef::table[-1]{'counter_columns'};
1.303 foxr 2437: my $data = &Apache::lonxml::endredirection();
2438:
1.305 foxr 2439: # The rowspan array of the table indicates which cells are part of a span.
2440: # n indicates the start of a span set of n rows.
2441: # ^ indicates a cell that continues a span set.
1.306 foxr 2442: # _ indicates the cell is at the bottom of a span set.
1.305 foxr 2443: # If this and subsequent cells are part of a rowspan, we must
2444: # push along the row until we find one that is not.
2445:
2446: while ((defined $Apache::londefdef::table[-1]{'rowspan'}[$current_row] [$current_column])
1.306 foxr 2447: && ($Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column] =~ /[\^\_]/)) {
1.305 foxr 2448: # Part of a span.
2449: push @ {$Apache::londefdef::table[-1]{'content'}[-1]}, '';
2450: $current_column++;
2451: }
2452: $Apache::londefdef::table[-1]{'counter_columns'} = $current_column;
2453:
2454:
2455:
2456: my $rowspan = &Apache::lonxml::get_param('rowspan', $parstack, $safeeval, undef, 0);
2457: if (!$rowspan) {
2458: $rowspan = 1;
2459: }
2460:
1.303 foxr 2461:
1.305 foxr 2462:
2463: $Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column] = $rowspan;
2464: for (my $i = 1; $i < $rowspan; $i++) {
2465: $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column] = '^';
1.306 foxr 2466: if ($i == ($rowspan-1)) {
2467: $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column] = '_';
2468: }
1.305 foxr 2469: }
1.304 foxr 2470:
1.159 sakharuk 2471: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2472: if (defined $TeXwidth) {
1.206 sakharuk 2473: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2474: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2475: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
1.159 sakharuk 2476: } else {
1.206 sakharuk 2477: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2478: my $garbage_data=$data;
2479: my $fwidth=0;
2480: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2481: my $current_length=&recalc($1);
2482: $current_length=~/(\d+\.?\d*)/;
2483: if ($fwidth<$1) {$fwidth=$1;}
2484: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2485: }
2486: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2487: my $current_length=$1;
2488: if ($fwidth<$current_length) {$fwidth=$current_length;}
2489: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2490: }
2491: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2492: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2493: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2494: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
1.231 sakharuk 2495: } elsif ($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)*/) {
2496: my $garbage_data=$data;
2497: my $fwidth=0;
2498: while ($garbage_data=~/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)\s*\}/) {
2499: my $current_length=&recalc($1);
2500: $current_length=~/(\d+\.?\d*)/;
2501: if ($fwidth<$1) {$fwidth=$1;}
2502: $garbage_data=~s/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2503: }
2504: while ($garbage_data=~/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2505: my $current_length=&recalc($1);
2506: $current_length=~/(\d+\.?\d*)/;
2507: if ($fwidth<$1) {$fwidth=$1;}
2508: $garbage_data=~s/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2509: }
2510: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2511: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2512: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2513: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2514: $data=~s/\\\\\s*$//;
1.159 sakharuk 2515: } else {
1.166 sakharuk 2516: $data=~s/^\s+(\S.*)/$1/;
1.159 sakharuk 2517: $data=~s/(.*\S)\s+$/$1/;
1.166 sakharuk 2518: $data=~s/(\s)+/$1/;
1.206 sakharuk 2519: my ($current_length,$min_length)=(0,0);
1.166 sakharuk 2520: if ($data=~/\\vskip/) {
2521: my $newdata=$data;
2522: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2523: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2524: foreach my $elementdata (@newdata) {
1.206 sakharuk 2525: my $lengthnewdata=2.5*&LATEX_length($elementdata);
1.166 sakharuk 2526: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
1.206 sakharuk 2527: my @words=split(/ /,$elementdata);
2528: foreach my $word (@words) {
2529: my $lengthword=2.5*&LATEX_length($word);
2530: if ($min_length<$lengthword) {$min_length=$lengthword;}
2531: }
1.166 sakharuk 2532: }
2533: } else {
1.206 sakharuk 2534: $current_length=2.5*&LATEX_length($data);
2535: my @words=split(/ /,$data);
2536: foreach my $word (@words) {
1.228 sakharuk 2537: my $lengthword=2*&LATEX_length($word);
1.206 sakharuk 2538: if ($min_length<$lengthword) {$min_length=$lengthword;}
2539: }
1.166 sakharuk 2540: }
1.206 sakharuk 2541: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2542: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2543: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2544: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
1.159 sakharuk 2545: }
2546: }
1.302 foxr 2547: # Substitute all of the tables nested in this cell in their appropriate places.
2548:
2549:
2550: my $nested_count = $#{$Apache::londefdef::table[-1]{'include'}}; # This one is constant...
2551: for (my $in=0; $in<=$nested_count; $in++) {
1.301 foxr 2552: my $nested = shift @{$Apache::londefdef::table[-1]{'include'}};
2553: $nested =~ s/\\end\{tabular\}\\strut\\\\/\\end\{tabular\}/;
2554: # $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2555: $data =~ s/\\keephidden\{NEW TABLE ENTRY\}/$nested/;
2556:
2557: }
2558: # Should be be killing off the 'include' elements as they're used up?
1.305 foxr 2559:
1.206 sakharuk 2560: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
1.305 foxr 2561:
1.304 foxr 2562: # Get the column and row spans.
2563: # Colspan can be done via \multicolumn if I can figure out the data structs.
2564:
2565: my $colspan = &Apache::lonxml::get_param('colspan', $parstack, $safeeval, undef, 0);
2566: if (!$colspan) {
2567: $colspan = 1;
2568: }
2569:
2570:
2571: # the colspan array will indicate how many columns will be spanned by this
2572: # cell..this requires that counter_columns also be adjusted accordingly
2573: # so that the next bunch of text goes in the right cell. Note that since
2574: # counter_columns is incremented in the start_td_tex, we adjust by colspan-1.
2575: #
2576:
2577: $Apache::londefdef::table[-1]{'colspan'}[$current_row][$current_column] = $colspan;
2578: $Apache::londefdef::table[-1]{'counter_columns'} += $colspan -1;
2579:
2580: # Put empty text in spanned cols.
2581:
2582: for (my $i = 0; $i < ($colspan -1); $i++) {
2583: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },'';
2584: }
2585:
2586:
1.301 foxr 2587: return '';
1.159 sakharuk 2588: }
2589:
1.122 albertel 2590: sub end_td {
1.126 sakharuk 2591: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 2592: my $currentstring = '';
2593: if ($target eq 'web') {
2594: $currentstring = $token->[2];
2595: } elsif ($target eq 'tex') {
1.160 sakharuk 2596: $Apache::londefdef::TD_redirection =0;
1.159 sakharuk 2597: &end_td_tex($parstack,$parser,$safeeval);
1.122 albertel 2598: }
2599: return $currentstring;
2600: }
2601:
1.166 sakharuk 2602: #-- <th> tag (end tag optional)
1.122 albertel 2603: sub start_th {
2604: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2605: my $currentstring = '';
2606: if ($target eq 'web') {
2607: $currentstring = $token->[4];
2608: } elsif ($target eq 'tex') {
1.230 sakharuk 2609: $Apache::londefdef::TD_redirection = 1;
2610: &tagg_check('tr','th',$tagstack,$parstack,$parser,$safeeval);
1.122 albertel 2611: }
2612: return $currentstring;
1.130 sakharuk 2613: }
1.230 sakharuk 2614:
2615: sub tagg_check {
2616: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
2617: my @ar=@$parstack;
2618: for (my $i=$#ar-1;$i>=0;$i--) {
2619: if (lc($$tagstack[$i]) eq $good_tag) {
2620: &start_th_tex($parstack,$parser,$safeeval);
2621: last;
2622: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2623: splice @ar, $i+1;
2624: &end_th_tex(\@ar,$parser,$safeeval);
2625: &start_th_tex($parstack,$parser,$safeeval);
2626: last;
2627: }
2628: }
2629: return '';
2630: }
2631:
2632: sub start_th_tex {
2633: my ($parstack,$parser,$safeeval) = @_;
2634: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2635: if ($alignchar eq '') {
2636: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
2637: }
2638: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
2639: $Apache::londefdef::table[-1]{'counter_columns'}++;
2640: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2641: if (defined $TeXwidth) {
2642: my $current_length=&recalc($TeXwidth);
2643: $current_length=~/(\d+\.?\d*)/;
2644: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2645: }
2646: &Apache::lonxml::startredirection();
2647: return '';
2648: }
2649:
2650: sub end_th_tex {
2651: my ($parstack,$parser,$safeeval) = @_;
2652: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2653: my $data=&Apache::lonxml::endredirection();
2654: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2655: if (defined $TeXwidth) {
2656: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2657: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2658: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2659: } else {
2660: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2661: my $garbage_data=$data;
2662: my $fwidth=0;
2663: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2664: my $current_length=&recalc($1);
2665: $current_length=~/(\d+\.?\d*)/;
2666: if ($fwidth<$1) {$fwidth=$1;}
2667: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2668: }
2669: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2670: my $current_length=$1;
2671: if ($fwidth<$current_length) {$fwidth=$current_length;}
2672: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2673: }
2674: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2675: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2676: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2677: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2678: } else {
2679: $data=~s/^\s+(\S.*)/$1/;
2680: $data=~s/(.*\S)\s+$/$1/;
2681: $data=~s/(\s)+/$1/;
2682: my ($current_length,$min_length)=(0,0);
2683: if ($data=~/\\vskip/) {
2684: my $newdata=$data;
2685: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2686: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2687: foreach my $elementdata (@newdata) {
2688: my $lengthnewdata=2.5*&LATEX_length($elementdata);
2689: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
2690: my @words=split(/ /,$elementdata);
2691: foreach my $word (@words) {
2692: my $lengthword=2.5*&LATEX_length($word);
2693: if ($min_length<$lengthword) {$min_length=$lengthword;}
2694: }
2695: }
2696: } else {
2697: $current_length=2.5*&LATEX_length($data);
2698: my @words=split(/ /,$data);
2699: foreach my $word (@words) {
2700: my $lengthword=2*&LATEX_length($word);
2701: if ($min_length<$lengthword) {$min_length=$lengthword;}
2702: }
2703: }
2704: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2705: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2706: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2707: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
2708: }
2709: }
2710: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
2711: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2712: }
2713: #make data bold
2714: $data='\textbf{'.$data.'}';
2715: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
2716: return'';
2717: }
2718:
1.122 albertel 2719: sub end_th {
1.130 sakharuk 2720: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 2721: my $currentstring = &end_p(); # Close any open <p> in the row.
1.122 albertel 2722: if ($target eq 'web') {
1.277 foxr 2723: $currentstring .= $token->[2];
1.122 albertel 2724: } elsif ($target eq 'tex') {
1.230 sakharuk 2725: $Apache::londefdef::TD_redirection =0;
2726: &end_th_tex($parstack,$parser,$safeeval);
1.122 albertel 2727: }
2728: return $currentstring;
2729: }
1.230 sakharuk 2730:
1.181 sakharuk 2731: #-- <img> tag (end tag forbidden)
1.249 foxr 2732: #
2733: # Render the <IMG> tag.
2734: # <IMG> has the following attributes (in addition to the
2735: # standard HTML ones:
2736: # TeXwrap - Governs how the tex target will try to wrap text around
2737: # horizontally aligned images.
2738: # TeXwidth - The width of the image when rendered for print (mm).
2739: # TeXheight - The height of the image when rendered for print (mm)
2740: # (Note there seems to also be support for this as a % of page size)
2741: #
1.122 albertel 2742: sub start_img {
1.299 albertel 2743: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 2744: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,
2745: undef,1);
1.189 albertel 2746: if (not $src and ($target eq 'web' or $target eq 'tex')) {
1.299 albertel 2747: my $inside = &Apache::lonxml::get_all_text("/img",$parser,$style);
1.189 albertel 2748: return '';
2749: }
1.290 albertel 2750: &Apache::lonxml::extlink($src);
1.122 albertel 2751: my $currentstring = '';
2752: my $scaling = .3;
1.249 foxr 2753:
2754: # Render unto browsers that which are the browser's...
2755:
1.122 albertel 2756: if ($target eq 'web') {
1.267 albertel 2757: if ($env{'browser.imagesuppress'} ne 'on') {
1.250 albertel 2758: $currentstring.=&Apache::lonenc::encrypt_ref($token,{'src'=>$src});
1.122 albertel 2759: } else {
2760: my $alttag= &Apache::lonxml::get_param
2761: ('alt',$parstack,$safeeval,undef,1);
2762: unless ($alttag) {
2763: $alttag=&Apache::lonmeta::alttag
2764: ($Apache::lonxml::pwd[-1],$src);
1.51 sakharuk 2765: }
1.158 sakharuk 2766: $currentstring.='[IMAGE: '.$alttag.']';
1.1 sakharuk 2767: }
1.249 foxr 2768:
2769: # and render unto TeX that which is LaTeX
2770:
1.122 albertel 2771: } elsif ($target eq 'tex') {
1.248 foxr 2772: #
2773: # The alignment will require some superstructure to be put around
2774: # the \includegraphics stuff. At present we can only partially
2775: # simulate the alignments offered by html.
2776: #
2777: #
2778: my $align = lc(&Apache::lonxml::get_param('align',
2779: $parstack,
2780: $safeeval,
2781: undef,1));
2782: if(!$align) {
1.287 foxr 2783: $align = "bottom"; # This is html's default so it's ours too.
1.248 foxr 2784: }
2785: #
2786: &Apache::lonxml::debug("Alignemnt = $align");
2787: # LaTeX's image/text wrapping is really bad since it wants to
2788: # make figures float.
2789: # The user has the optional parameter (applicable only to l/r
2790: # alignment to use the picins/parpic directive to get wrapped text
2791: # this is also imperfect.. that's why we give them a choice...
2792: # so they can't yell at us for our choice.
2793: #
2794: my $latex_rendering = &Apache::lonxml::get_param('TeXwrap',
2795: $parstack,
2796: $safeeval,
2797: undef,0);
1.312 foxr 2798: # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering");
1.248 foxr 2799: if(!$latex_rendering) {
1.312 foxr 2800: $latex_rendering = "texwrap";
2801: }
2802: # using texwrap inside a table does not work. So, if after all of this,
2803: # texwrap is on, we turn it off if we detect we're in a table:
2804: #
2805: if (($latex_rendering eq 'texwrap') && &is_inside_of($tagstack, "table")) {
2806: $latex_rendering = 'parpic';
1.248 foxr 2807: }
1.312 foxr 2808: # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering image file: $src");
1.248 foxr 2809:
1.256 albertel 2810: #if original gif/jpg/png file exist do following:
1.266 albertel 2811: my $origsrc=$src;
1.256 albertel 2812: my ($path,$file) = &get_eps_image($src);
1.122 albertel 2813: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.261 foxr 2814: &Apache::lonxml::debug("path = $path file = $file src = $src");
1.192 sakharuk 2815: if (-e $src) {
1.261 foxr 2816: &Apache::lonxml::debug("$src exists");
1.256 albertel 2817: my ($height_param,$width_param)=
1.266 albertel 2818: &image_size($origsrc,0.3,$parstack,$safeeval);
1.262 foxr 2819: my $destpath = $path;
1.263 foxr 2820: $destpath =~ s/ /\_/g; # Spaces in path cause LaTex to vomit.
2821: my $destfile = $file;
2822: $destfile =~ s/ /\_/g;
1.266 albertel 2823: my $size;
2824: if ($width_param) { $size.='width='.$width_param.' mm,'; }
2825: if ($height_param) { $size.='height='.$height_param.' mm]'; }
2826: $size='['.$size;
2827: $size=~s/,$/]/;
1.262 foxr 2828: $currentstring .= '\graphicspath{{'.$destpath.'}}'
1.266 albertel 2829: .'\includegraphics'.$size.'{'.$destfile.'} ';
1.256 albertel 2830:
1.248 foxr 2831: # If there's an alignment specification we need to honor it here.
2832: # For the horizontal alignments, we will also honor the
2833: # value of the latex specfication. The default is parbox,
2834: # and that's used for illegal values too.
2835: #
2836: # Even though we set a default alignment value, the user
2837: # could have given us an illegal value. In that case we
2838: # just use the default alignment of bottom..
2839: if ($align eq "top") {
2840: $currentstring = '\raisebox{-'.$height_param.'mm}{'.$currentstring.'}';
2841: } elsif (($align eq "center") || ($align eq "middle")) { # Being kind
2842: my $offset = $height_param/2;
2843: $currentstring = '\raisebox{-'.$offset.'mm}{'.$currentstring.'}';
2844: } elsif ($align eq "left") {
2845: if ($latex_rendering eq "parpic") {
2846: $currentstring = '\parpic[l]{'.$currentstring.'}';
1.286 foxr 2847: } else { # wrapfig render
2848: $currentstring = '\begin{wrapfigure}{l}{'.$width_param.'mm}'
2849: .'\scalebox{1.0}{'.$currentstring.'}\end{wrapfigure}';
1.248 foxr 2850: }
2851: } elsif ($align eq "right") {
2852: if ($latex_rendering eq "parpic") {
2853: $currentstring = '\parpic[r]{'.$currentstring.'}';
1.286 foxr 2854: } else { # wrapfig rendering
2855: $currentstring = '\begin{wrapfigure}{r}{'.$width_param.'mm}'
2856: .'\scalebox{1.0}{'.$currentstring.'}\end{wrapfigure}';
2857:
1.248 foxr 2858: }
2859: } else { # Bottom is also default.
2860: # $currentstring = '\raisebox{'.$height_param.'mm}{'.$currentstring.'}';
2861: }
1.122 albertel 2862: } else {
1.261 foxr 2863: &Apache::lonxml::debug("$src does not exist");
1.122 albertel 2864: #original image file doesn't exist so check the alt attribute
2865: my $alt =
2866: &Apache::lonxml::get_param('alt',$parstack,$safeeval,undef,1);
2867: unless ($alt) {
2868: $alt=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
2869: }
2870:
1.256 albertel 2871: if ($alt) { $currentstring .= ' '.$alt.' '; }
1.59 sakharuk 2872: }
1.249 foxr 2873:
2874: # And here's where the semi-quote breaks down: allow the user
2875: # to edit the beast as well by rendering the problem for edit:
1.186 albertel 2876: } elsif ($target eq 'edit') {
2877: $currentstring .=&Apache::edit::tag_start($target,$token);
2878: $currentstring .=&Apache::edit::text_arg('Image Url:','src',$token,70).
2879: &Apache::edit::browse('src',undef,'alt').' '.
2880: &Apache::edit::search('src',undef,'alt').'<br />';
2881: $currentstring .=&Apache::edit::text_arg('Description:','alt',$token,70).'<br />';
2882: $currentstring .=&Apache::edit::text_arg('width (pixel):','width',$token,5);
2883: $currentstring .=&Apache::edit::text_arg('height (pixel):','height',$token,5).'<br />';
2884: $currentstring .=&Apache::edit::text_arg('TeXwidth (mm):','TeXwidth',$token,5);
2885: $currentstring .=&Apache::edit::text_arg('TeXheight (mm):','TeXheight',$token,5);
1.234 albertel 2886: $currentstring .=&Apache::edit::select_arg('Alignment:','align',
2887: ['','bottom','middle','top','left','right'],$token,5);
1.249 foxr 2888: $currentstring .=&Apache::edit::select_arg('TeXwrap:', 'TeXwrap',
2889: ['', 'parbox', 'parpic'], $token, 2);
1.186 albertel 2890: $currentstring .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1.249 foxr 2891: my $src= &Apache::lonxml::get_param('src',$parstack,$safeeval);
2892: my $alt= &Apache::lonxml::get_param('alt',$parstack,$safeeval);
2893: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
2894: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
2895:
2896:
1.186 albertel 2897: $currentstring .= '<img src="'.$src.'" alt="'.$alt.'" ';
2898: if ($width) { $currentstring.=' width="'.$width.'" '; }
2899: if ($height) { $currentstring.=' height="'.$height.'" '; }
2900: $currentstring .= ' />';
2901: } elsif ($target eq 'modified') {
1.210 albertel 2902: my ($osrc,$owidth,$oheight)=
2903: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2904: my $ctag=&Apache::edit::get_new_args($token,$parstack,
1.234 albertel 2905: $safeeval,'src','alt','align',
1.249 foxr 2906: 'TeXwidth','TeXheight', 'TeXwrap',
1.210 albertel 2907: 'width','height');
2908: my ($nsrc,$nwidth,$nheight)=
2909: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2910: my $loc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$nsrc);
2911: &image_replication($loc);
2912: my ($iwidth,$iheight);
2913: if (-e $loc) {
2914: my $image = Image::Magick->new;
2915: $image->Read($loc);
2916: ($iwidth, $iheight) = ($image->Get('width'),
2917: $image->Get('height'));
2918: }
2919: if ($osrc ne $nsrc || (!$nwidth && !$nheight)) {
2920: # changed image or no size specified,
2921: # if they didn't explicitly change the
2922: # width or height use the ones from the image
2923: if ($iwidth && $iheight) {
2924: if ($owidth == $nwidth || (!$nwidth && !$nheight)) {
2925: $token->[2]{'width'} = $iwidth;$ctag=1;
2926: }
2927: if ($oheight == $nheight || (!$nwidth && !$nheight)) {
2928: $token->[2]{'height'}=$iheight;$ctag=1;
1.186 albertel 2929: }
2930: }
2931: }
1.210 albertel 2932: my ($cwidth,$cheight)=($token->[2]{'width'},$token->[2]{'height'});
2933: # if we don't have a width or height
2934: if ($iwidth && $cwidth && !$cheight) {
2935: $token->[2]{'height'}=int(($cwidth/$iwidth)*$iheight);$ctag=1;
2936: }
2937: if ($iheight && $cheight && !$cwidth) {
2938: $token->[2]{'width'}=int(($cheight/$iheight)*$iwidth);$ctag=1;
2939: }
2940: if ($ctag) {$currentstring=&Apache::edit::rebuild_tag($token);}
1.122 albertel 2941: }
1.261 foxr 2942:
1.122 albertel 2943: return $currentstring;
2944: }
2945:
2946: sub end_img {
2947: my ($target,$token) = @_;
2948: my $currentstring = '';
2949: if ($target eq 'web') {
2950: $currentstring = $token->[2];
2951: } elsif ($target eq 'tex') {
2952: $currentstring = '';
2953: }
2954: return $currentstring;
2955: }
2956:
1.181 sakharuk 2957: #-- <applet> tag (end tag required)
1.122 albertel 2958: sub start_applet {
2959: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2960:
2961: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,undef,1);
1.290 albertel 2962: &Apache::lonxml::extlink($code);
1.122 albertel 2963: my $archive=&Apache::lonxml::get_param('archive',$parstack,$safeeval,
2964: undef,1);
1.290 albertel 2965: &Apache::lonxml::extlink($archive);
1.122 albertel 2966: my $currentstring = '';
2967: if ($target eq 'web') {
1.267 albertel 2968: if ($env{'browser.appletsuppress'} ne 'on') {
1.250 albertel 2969: $currentstring = &Apache::lonenc::encrypt_ref($token,
2970: {'code'=>$code,
2971: 'archive'=>$archive}
2972: );
1.122 albertel 2973: } else {
2974: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
2975: $safeeval,undef,1);
2976: unless ($alttag) {
2977: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2978: $code);
1.44 sakharuk 2979: }
1.122 albertel 2980: $currentstring='[APPLET: '.$alttag.']';
1.1 sakharuk 2981: }
1.122 albertel 2982: } elsif ($target eq 'tex') {
1.177 albertel 2983: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
2984: $safeeval,undef,1);
2985: unless ($alttag) {
2986: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,
2987: undef,1);
2988: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2989: $code);
1.175 sakharuk 2990: }
1.177 albertel 2991: $currentstring.='\begin{center} \fbox{Java Applet: '.$alttag.
2992: '.}\end{center}';
1.122 albertel 2993: }
2994: return $currentstring;
2995: }
2996:
2997: sub end_applet {
2998: my ($target,$token) = @_;
2999: my $currentstring = '';
3000: if ($target eq 'web') {
3001: $currentstring = $token->[2];
3002: } elsif ($target eq 'tex') {
3003: }
3004: return $currentstring;
3005: }
3006:
1.181 sakharuk 3007: #-- <embed> tag (end tag optional/required)
1.122 albertel 3008: sub start_embed {
3009: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3010: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
1.290 albertel 3011: &Apache::lonxml::extlink($src);
1.122 albertel 3012: my $currentstring = '';
3013: if ($target eq 'web') {
1.267 albertel 3014: if ($env{'browser.embedsuppress'} ne 'on') {
1.250 albertel 3015: $currentstring=&Apache::lonenc::encrypt_ref($token,{'src'=>$src});
1.122 albertel 3016: } else {
3017: my $alttag=&Apache::lonxml::get_param
3018: ('alt',$parstack,$safeeval,undef,1);
3019: unless ($alttag) {
3020: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
1.42 albertel 3021: }
1.122 albertel 3022: $currentstring='[EMBED: '.$alttag.']';
1.10 www 3023: }
1.122 albertel 3024: } elsif ($target eq 'tex') {
3025: }
3026: return $currentstring;
3027: }
3028:
3029: sub end_embed {
3030: my ($target,$token) = @_;
3031: my $currentstring = '';
3032: if ($target eq 'web') {
3033: $currentstring = $token->[2];
1.175 sakharuk 3034: } elsif ($target eq 'tex') {
1.122 albertel 3035: }
3036: return $currentstring;
3037: }
3038:
1.181 sakharuk 3039: #-- <param> tag (end tag forbidden)
1.122 albertel 3040: sub start_param {
3041: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.290 albertel 3042: if (&Apache::lonxml::get_param('name',$parstack,
3043: $safeeval,undef,1)=~/^cabbase$/i) {
3044: my $value=&Apache::lonxml::get_param('value',$parstack,
3045: $safeeval,undef,1);
3046: &Apache::lonxml::extlink($value);
3047: }
3048:
3049: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
3050: &Apache::lonxml::extlink($src);
1.122 albertel 3051: my $currentstring = '';
3052: if ($target eq 'web') {
1.250 albertel 3053: my %toconvert;
3054: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
3055: if ($src) { $toconvert{'src'}= $src; }
3056: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval,
3057: undef,1);
1.251 albertel 3058: if ($name=~/^cabbase$/i) {
3059: $toconvert{'value'}=&Apache::lonxml::get_param('value',$parstack,
3060: $safeeval,undef,1);
3061: }
1.250 albertel 3062: $currentstring = &Apache::lonenc::encrypt_ref($token,\%toconvert);
1.122 albertel 3063: } elsif ($target eq 'tex') {
3064: }
3065: return $currentstring;
3066: }
3067:
3068: sub end_param {
3069: my ($target,$token) = @_;
3070: my $currentstring = '';
3071: if ($target eq 'web') {
3072: $currentstring = $token->[2];
3073: } elsif ($target eq 'tex') {
3074: }
3075: return $currentstring;
3076: }
3077:
3078: #-- <allow> tag
3079: sub start_allow {
3080: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3081: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
1.290 albertel 3082: &Apache::lonxml::extlink($src);
3083:
1.241 albertel 3084: if ($target eq 'tex') { &image_replication($src); }
1.122 albertel 3085: my $result;
3086: if ($target eq 'edit') {
3087: $result .=&Apache::edit::tag_start($target,$token);
3088: $result .=&Apache::edit::text_arg('File Spec:','src',$token,70);
3089: $result .=&Apache::edit::end_row();#.&Apache::edit::start_spanning_row();
3090: } elsif ($target eq 'modified') {
3091: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
3092: $safeeval,'src');
3093: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
3094: }
3095: return $result;
3096: }
3097:
3098: sub end_allow {
3099: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3100: if ( $target eq 'edit') { return (&Apache::edit::end_table()); }
3101: return '';
3102: }
1.119 www 3103:
1.181 sakharuk 3104: #-- Frames (end tag required)
3105: #-- <frameset>
1.122 albertel 3106: sub start_frameset {
3107: my ($target,$token) = @_;
1.277 foxr 3108: my $currentstring = ''; # Close any pending para.
1.122 albertel 3109: if ($target eq 'web') {
1.180 albertel 3110: if (!$Apache::lonxml::registered &&
1.267 albertel 3111: $env{'request.state'} eq 'published') {
1.122 albertel 3112: $currentstring.='<head>'.
3113: &Apache::lonmenu::registerurl(undef,$target).'</head>';
1.10 www 3114: }
1.133 www 3115: my $onLoad='';
3116: foreach my $key (keys(%{$token->[2]})) {
3117: if ($key =~ /^onload$/i) {
3118: $onLoad.=$token->[2]->{$key}.';';
3119: delete($token->[2]->{$key});
3120: }
3121: }
3122: $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad;
3123: my $onUnload='';
3124: foreach my $key (keys(%{$token->[2]})) {
3125: if ($key =~ /^onunload$/i) {
3126: $onUnload.=$token->[2]->{$key}.';';
3127: delete($token->[2]->{$key});
3128: }
3129: }
3130: $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().
3131: ';'.$onUnload;
3132:
3133: $currentstring .= '<'.$token->[1];
3134: foreach (keys %{$token->[2]}) {
3135: $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
3136: }
3137: $currentstring.='>';
1.122 albertel 3138: }
3139: return $currentstring;
3140: }
3141:
3142: sub end_frameset {
3143: my ($target,$token) = @_;
3144: my $currentstring = '';
3145: if ($target eq 'web') {
3146: $currentstring = $token->[2];
3147: }
3148: return $currentstring;
3149: }
1.162 sakharuk 3150:
1.181 sakharuk 3151: #-- <xmp> (end tag required)
1.162 sakharuk 3152: sub start_xmp {
3153: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3154: my $currentstring = '';
3155: if ($target eq 'web') {
3156: $currentstring .= $token->[4];
3157: } elsif ($target eq 'tex') {
3158: $currentstring .= '\begin{verbatim}';
3159: }
3160: return $currentstring;
3161: }
3162:
3163: sub end_xmp {
3164: my ($target,$token) = @_;
3165: my $currentstring = '';
3166: if ($target eq 'web') {
3167: $currentstring .= $token->[2];
3168: } elsif ($target eq 'tex') {
3169: $currentstring .= '\end{verbatim}';
3170: }
3171: return $currentstring;
3172: }
3173:
1.181 sakharuk 3174: #-- <pre> (end tag required)
1.122 albertel 3175: sub start_pre {
1.126 sakharuk 3176: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 3177: my $currentstring = &end_p(); # close off pending <p>
1.122 albertel 3178: if ($target eq 'web') {
3179: $currentstring .= $token->[4];
3180: } elsif ($target eq 'tex') {
1.136 sakharuk 3181: $currentstring .= '\begin{verbatim}';
1.319 ! albertel 3182: &Apache::lonxml::disable_LaTeX_substitutions();
1.122 albertel 3183: }
3184: return $currentstring;
3185: }
3186:
3187: sub end_pre {
3188: my ($target,$token) = @_;
3189: my $currentstring = '';
3190: if ($target eq 'web') {
3191: $currentstring .= $token->[2];
3192: } elsif ($target eq 'tex') {
1.136 sakharuk 3193: $currentstring .= '\end{verbatim}';
1.319 ! albertel 3194: &Apache::lonxml::enable_LaTeX_substitutions();
1.122 albertel 3195: }
3196: return $currentstring;
3197: }
3198:
3199: #-- <insert>
3200: sub start_insert {
3201: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3202: my $currentstring = '';
3203: if ($target eq 'web') {
3204: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
3205: $currentstring .= '<b>'.$display.'</b>';;
3206: }
3207: return $currentstring;
3208: }
3209:
3210: sub end_insert {
3211: my ($target,$token) = @_;
3212: my $currentstring = '';
3213: if ($target eq 'web') {
3214: $currentstring .= '';
3215: }
3216: return $currentstring;
3217: }
3218:
3219: #-- <externallink>
3220: sub start_externallink {
3221: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3222: my $currentstring = '';
3223: if ($target eq 'web') {
3224: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
3225: $currentstring .= '<b>'.$display.'</b>';;
3226: }
3227: return $currentstring;
3228: }
3229:
3230: sub end_externallink {
3231: my ($target,$token) = @_;
3232: my $currentstring = '';
3233: if ($target eq 'web') {
3234: $currentstring .= '';
3235: }
3236: return $currentstring;
3237: }
3238:
3239: #-- <blankspace heigth="">
3240: sub start_blankspace {
3241: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 3242: my $currentstring = &end_p(); # closes off any unclosed <p>
1.122 albertel 3243: if ($target eq 'tex') {
3244: my $howmuch = &Apache::lonxml::get_param('heigth',$parstack,$safeeval,undef,1);
3245: $currentstring .= '\vskip '.$howmuch.' ';
3246: }
3247: return $currentstring;
3248: }
3249:
3250: sub end_blankspace {
3251: my ($target,$token) = @_;
3252: my $currentstring = '';
3253: if ($target eq 'tex') {
3254: $currentstring .= '';
3255: }
3256: return $currentstring;
3257: }
3258:
1.181 sakharuk 3259: #-- <abbr> tag (end tag required)
1.122 albertel 3260: sub start_abbr {
3261: my ($target,$token) = @_;
3262: my $currentstring = '';
3263: if ($target eq 'web') {
3264: $currentstring = $token->[4];
3265: }
3266: return $currentstring;
3267: }
3268:
3269: sub end_abbr {
3270: my ($target,$token) = @_;
3271: my $currentstring = '';
3272: if ($target eq 'web') {
3273: $currentstring = $token->[2];
3274: }
3275: return $currentstring;
3276: }
3277:
1.181 sakharuk 3278: #-- <acronym> tag (end tag required)
1.122 albertel 3279: sub start_acronym {
3280: my ($target,$token) = @_;
3281: my $currentstring = '';
3282: if ($target eq 'web') {
3283: $currentstring = $token->[4];
3284: }
3285: return $currentstring;
3286: }
3287:
3288: sub end_acronym {
3289: my ($target,$token) = @_;
3290: my $currentstring = '';
3291: if ($target eq 'web') {
3292: $currentstring = $token->[2];
3293: }
3294: return $currentstring;
3295: }
3296:
1.181 sakharuk 3297: #-- <area> tag (end tag forbidden)
1.122 albertel 3298: sub start_area {
3299: my ($target,$token) = @_;
3300: my $currentstring = '';
3301: if ($target eq 'web') {
3302: $currentstring = $token->[4];
3303: }
3304: return $currentstring;
3305: }
3306:
3307: sub end_area {
3308: my ($target,$token) = @_;
3309: my $currentstring = '';
3310: if ($target eq 'web') {
3311: $currentstring = $token->[2];
3312: }
3313: return $currentstring;
3314: }
3315:
1.181 sakharuk 3316: #-- <base> tag (end tag forbidden)
1.122 albertel 3317: sub start_base {
3318: my ($target,$token) = @_;
3319: my $currentstring = '';
3320: if ($target eq 'web') {
3321: $currentstring = $token->[4];
1.161 sakharuk 3322: }
1.122 albertel 3323: return $currentstring;
3324: }
3325:
3326: sub end_base {
3327: my ($target,$token) = @_;
3328: my $currentstring = '';
3329: if ($target eq 'web') {
3330: $currentstring = $token->[2];
3331: }
3332: return $currentstring;
3333: }
3334:
1.181 sakharuk 3335: #-- <bdo> tag (end tag required)
1.122 albertel 3336: sub start_bdo {
3337: my ($target,$token) = @_;
3338: my $currentstring = '';
3339: if ($target eq 'web') {
3340: $currentstring = $token->[4];
3341: }
3342: return $currentstring;
3343: }
3344:
3345: sub end_bdo {
3346: my ($target,$token) = @_;
3347: my $currentstring = '';
3348: if ($target eq 'web') {
3349: $currentstring = $token->[2];
3350: }
3351: return $currentstring;
3352: }
3353:
1.181 sakharuk 3354: #-- <bgsound> tag (end tag optional)
1.122 albertel 3355: sub start_bgsound {
3356: my ($target,$token) = @_;
3357: my $currentstring = '';
3358: if ($target eq 'web') {
3359: $currentstring = $token->[4];
3360: }
3361: return $currentstring;
3362: }
3363:
3364: sub end_bgsound {
3365: my ($target,$token) = @_;
3366: my $currentstring = '';
3367: if ($target eq 'web') {
3368: $currentstring = $token->[2];
3369: }
3370: return $currentstring;
3371: }
3372:
1.181 sakharuk 3373: #-- <blink> tag (end tag required)
1.122 albertel 3374: sub start_blink {
3375: my ($target,$token) = @_;
3376: my $currentstring = '';
3377: if ($target eq 'web') {
3378: $currentstring = $token->[4];
3379: }
3380: return $currentstring;
3381: }
3382:
3383: sub end_blink {
3384: my ($target,$token) = @_;
3385: my $currentstring = '';
3386: if ($target eq 'web') {
3387: $currentstring = $token->[2];
3388: }
3389: return $currentstring;
3390: }
3391:
1.181 sakharuk 3392: #-- <blockquote> tag (end tag required)
1.122 albertel 3393: sub start_blockquote {
3394: my ($target,$token) = @_;
1.279 foxr 3395: my $currentstring = &end_p(); # Close any unclosed <p>
1.122 albertel 3396: if ($target eq 'web') {
1.277 foxr 3397: $currentstring .= $token->[4];
1.122 albertel 3398: }
3399: return $currentstring;
3400: }
3401:
3402: sub end_blockquote {
3403: my ($target,$token) = @_;
3404: my $currentstring = '';
3405: if ($target eq 'web') {
3406: $currentstring = $token->[2];
3407: }
3408: return $currentstring;
3409: }
3410:
1.181 sakharuk 3411: #-- <button> tag (end tag required)
1.122 albertel 3412: sub start_button {
3413: my ($target,$token) = @_;
3414: my $currentstring = '';
3415: if ($target eq 'web') {
3416: $currentstring = $token->[4];
3417: }
3418: return $currentstring;
3419: }
3420:
3421: sub end_button {
3422: my ($target,$token) = @_;
3423: my $currentstring = '';
3424: if ($target eq 'web') {
3425: $currentstring = $token->[2];
3426: }
3427: return $currentstring;
3428: }
3429:
1.181 sakharuk 3430: #-- <caption> tag (end tag required)
1.122 albertel 3431: sub start_caption {
3432: my ($target,$token) = @_;
3433: my $currentstring = '';
3434: if ($target eq 'web') {
3435: $currentstring = $token->[4];
3436: }
3437: return $currentstring;
3438: }
3439:
3440: sub end_caption {
3441: my ($target,$token) = @_;
3442: my $currentstring = '';
3443: if ($target eq 'web') {
3444: $currentstring = $token->[2];
3445: }
3446: return $currentstring;
3447: }
3448:
1.181 sakharuk 3449: #-- <col> tag (end tag forbdden)
1.122 albertel 3450: sub start_col {
3451: my ($target,$token) = @_;
3452: my $currentstring = '';
3453: if ($target eq 'web') {
3454: $currentstring = $token->[4];
3455: }
3456: return $currentstring;
3457: }
3458:
3459: sub end_col {
3460: my ($target,$token) = @_;
3461: my $currentstring = '';
3462: if ($target eq 'web') {
3463: $currentstring = $token->[2];
3464: }
3465: return $currentstring;
3466: }
3467:
1.181 sakharuk 3468: #-- <colgroup> tag (end tag optional)
1.122 albertel 3469: sub start_colgroup {
3470: my ($target,$token) = @_;
3471: my $currentstring = '';
3472: if ($target eq 'web') {
3473: $currentstring = $token->[4];
3474: }
3475: return $currentstring;
3476: }
3477:
3478: sub end_colgroup {
3479: my ($target,$token) = @_;
3480: my $currentstring = '';
3481: if ($target eq 'web') {
3482: $currentstring = $token->[2];
3483: }
3484: return $currentstring;
3485: }
3486:
1.181 sakharuk 3487: #-- <del> tag (end tag required)
1.122 albertel 3488: sub start_del {
3489: my ($target,$token) = @_;
3490: my $currentstring = '';
3491: if ($target eq 'web') {
3492: $currentstring = $token->[4];
3493: }
3494: return $currentstring;
3495: }
3496:
3497: sub end_del {
3498: my ($target,$token) = @_;
3499: my $currentstring = '';
3500: if ($target eq 'web') {
3501: $currentstring = $token->[2];
3502: }
3503: return $currentstring;
3504: }
3505:
1.181 sakharuk 3506: #-- <fieldset> tag (end tag required)
1.122 albertel 3507: sub start_fieldset {
3508: my ($target,$token) = @_;
3509: my $currentstring = '';
3510: if ($target eq 'web') {
3511: $currentstring = $token->[4];
3512: }
3513: return $currentstring;
3514: }
3515:
3516: sub end_fieldset {
3517: my ($target,$token) = @_;
3518: my $currentstring = '';
3519: if ($target eq 'web') {
3520: $currentstring = $token->[2];
3521: }
3522: return $currentstring;
3523: }
3524:
1.181 sakharuk 3525: #-- <frame> tag (end tag forbidden)
1.122 albertel 3526: sub start_frame {
3527: my ($target,$token) = @_;
3528: my $currentstring = '';
3529: if ($target eq 'web') {
3530: $currentstring = $token->[4];
3531: }
3532: return $currentstring;
3533: }
3534:
3535: sub end_frame {
3536: my ($target,$token) = @_;
3537: my $currentstring = '';
3538: if ($target eq 'web') {
3539: $currentstring = $token->[2];
3540: }
3541: return $currentstring;
3542: }
3543:
1.181 sakharuk 3544: #-- <iframe> tag (end tag required)
1.122 albertel 3545: sub start_iframe {
3546: my ($target,$token) = @_;
3547: my $currentstring = '';
3548: if ($target eq 'web') {
3549: $currentstring = $token->[4];
3550: }
3551: return $currentstring;
3552: }
3553:
3554: sub end_iframe {
3555: my ($target,$token) = @_;
3556: my $currentstring = '';
3557: if ($target eq 'web') {
3558: $currentstring = $token->[2];
3559: }
3560: return $currentstring;
3561: }
3562:
1.181 sakharuk 3563: #-- <ins> tag (end tag required)
1.122 albertel 3564: sub start_ins {
3565: my ($target,$token) = @_;
3566: my $currentstring = '';
3567: if ($target eq 'web') {
3568: $currentstring = $token->[4];
3569: }
3570: return $currentstring;
3571: }
3572:
3573: sub end_ins {
3574: my ($target,$token) = @_;
3575: my $currentstring = '';
3576: if ($target eq 'web') {
3577: $currentstring = $token->[2];
3578: }
3579: return $currentstring;
3580: }
3581:
1.181 sakharuk 3582: #-- <isindex> tag (end tag forbidden)
1.122 albertel 3583: sub start_isindex {
3584: my ($target,$token) = @_;
3585: my $currentstring = '';
3586: if ($target eq 'web') {
3587: $currentstring = $token->[4];
3588: }
3589: return $currentstring;
3590: }
3591:
3592: sub end_isindex {
3593: my ($target,$token) = @_;
3594: my $currentstring = '';
3595: if ($target eq 'web') {
3596: $currentstring = $token->[2];
3597: }
3598: return $currentstring;
3599: }
3600:
1.181 sakharuk 3601: #-- <keygen> tag (end tag forbidden)
1.122 albertel 3602: sub start_keygen {
3603: my ($target,$token) = @_;
3604: my $currentstring = '';
3605: if ($target eq 'web') {
3606: $currentstring = $token->[4];
3607: }
3608: return $currentstring;
3609: }
3610:
3611: sub end_keygen {
3612: my ($target,$token) = @_;
3613: my $currentstring = '';
3614: if ($target eq 'web') {
3615: $currentstring = $token->[2];
3616: }
3617: return $currentstring;
3618: }
3619:
3620: #-- <label> tag
3621: sub start_label {
3622: my ($target,$token) = @_;
3623: my $currentstring = '';
3624: if ($target eq 'web') {
3625: $currentstring = $token->[4];
3626: }
3627: return $currentstring;
3628: }
3629:
3630: sub end_label {
3631: my ($target,$token) = @_;
3632: my $currentstring = '';
3633: if ($target eq 'web') {
3634: $currentstring = $token->[2];
3635: }
3636: return $currentstring;
3637: }
3638:
1.181 sakharuk 3639: #-- <layer> tag (end tag required)
1.122 albertel 3640: sub start_layer {
3641: my ($target,$token) = @_;
3642: my $currentstring = '';
3643: if ($target eq 'web') {
3644: $currentstring = $token->[4];
3645: }
3646: return $currentstring;
3647: }
3648:
3649: sub end_layer {
3650: my ($target,$token) = @_;
3651: my $currentstring = '';
3652: if ($target eq 'web') {
3653: $currentstring = $token->[2];
3654: }
3655: return $currentstring;
3656: }
3657:
1.181 sakharuk 3658: #-- <legend> tag (end tag required)
1.122 albertel 3659: sub start_legend {
3660: my ($target,$token) = @_;
3661: my $currentstring = '';
3662: if ($target eq 'web') {
3663: $currentstring = $token->[4];
3664: }
3665: return $currentstring;
3666: }
3667:
3668: sub end_legend {
3669: my ($target,$token) = @_;
3670: my $currentstring = '';
3671: if ($target eq 'web') {
3672: $currentstring = $token->[2];
3673: }
3674: return $currentstring;
3675: }
3676:
1.181 sakharuk 3677: #-- <link> tag (end tag forbidden)
1.122 albertel 3678: sub start_link {
1.292 albertel 3679: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 3680: my $currentstring = '';
3681: if ($target eq 'web') {
1.291 albertel 3682: my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
3683: undef,1);
3684: &Apache::lonxml::extlink($href);
1.122 albertel 3685: $currentstring = $token->[4];
3686: }
3687: return $currentstring;
3688: }
3689:
3690: sub end_link {
3691: my ($target,$token) = @_;
3692: my $currentstring = '';
3693: if ($target eq 'web') {
3694: $currentstring = $token->[2];
3695: }
3696: return $currentstring;
3697: }
3698:
1.181 sakharuk 3699: #-- <marquee> tag (end tag optional)
1.122 albertel 3700: sub start_marquee {
3701: my ($target,$token) = @_;
3702: my $currentstring = '';
3703: if ($target eq 'web') {
3704: $currentstring = $token->[4];
3705: }
3706: return $currentstring;
3707: }
3708:
3709: sub end_marquee {
3710: my ($target,$token) = @_;
3711: my $currentstring = '';
3712: if ($target eq 'web') {
3713: $currentstring = $token->[2];
3714: }
3715: return $currentstring;
3716: }
3717:
1.179 sakharuk 3718: #-- <multicol> tag (end tag required)
3719: sub start_multicol {
1.122 albertel 3720: my ($target,$token) = @_;
1.279 foxr 3721: my $currentstring = &end_p(); # Close any pending <p>
1.122 albertel 3722: if ($target eq 'web') {
1.277 foxr 3723: $currentstring .= $token->[4];
1.122 albertel 3724: }
3725: return $currentstring;
3726: }
3727:
1.179 sakharuk 3728: sub end_multicol {
1.122 albertel 3729: my ($target,$token) = @_;
3730: my $currentstring = '';
3731: if ($target eq 'web') {
3732: $currentstring = $token->[2];
3733: }
3734: return $currentstring;
3735: }
3736:
1.179 sakharuk 3737: #-- <nobr> tag (end tag required)
1.122 albertel 3738: sub start_nobr {
3739: my ($target,$token) = @_;
3740: my $currentstring = '';
3741: if ($target eq 'web') {
3742: $currentstring = $token->[4];
1.179 sakharuk 3743: } elsif ($target eq 'tex') {
3744: $currentstring='\mbox{';
3745: }
1.122 albertel 3746: return $currentstring;
3747: }
3748:
3749: sub end_nobr {
3750: my ($target,$token) = @_;
3751: my $currentstring = '';
3752: if ($target eq 'web') {
3753: $currentstring = $token->[2];
1.179 sakharuk 3754: } elsif ($target eq 'tex') {
3755: $currentstring='}';
3756: }
1.122 albertel 3757: return $currentstring;
3758: }
3759:
1.179 sakharuk 3760: #-- <noembed> tag (end tag required)
1.122 albertel 3761: sub start_noembed {
3762: my ($target,$token) = @_;
3763: my $currentstring = '';
3764: if ($target eq 'web') {
3765: $currentstring = $token->[4];
3766: }
3767: return $currentstring;
3768: }
3769:
3770: sub end_noembed {
3771: my ($target,$token) = @_;
3772: my $currentstring = '';
3773: if ($target eq 'web') {
3774: $currentstring = $token->[2];
3775: }
3776: return $currentstring;
3777: }
3778:
1.179 sakharuk 3779: #-- <noframes> tag (end tag required)
1.122 albertel 3780: sub start_noframes {
3781: my ($target,$token) = @_;
3782: my $currentstring = '';
3783: if ($target eq 'web') {
3784: $currentstring = $token->[4];
3785: }
3786: return $currentstring;
3787: }
3788:
3789: sub end_noframes {
3790: my ($target,$token) = @_;
3791: my $currentstring = '';
3792: if ($target eq 'web') {
3793: $currentstring = $token->[2];
3794: }
3795: return $currentstring;
3796: }
3797:
1.179 sakharuk 3798: #-- <nolayer> tag (end tag required)
1.122 albertel 3799: sub start_nolayer {
3800: my ($target,$token) = @_;
3801: my $currentstring = '';
3802: if ($target eq 'web') {
3803: $currentstring = $token->[4];
3804: }
3805: return $currentstring;
3806: }
3807:
3808: sub end_nolayer {
3809: my ($target,$token) = @_;
3810: my $currentstring = '';
3811: if ($target eq 'web') {
3812: $currentstring = $token->[2];
3813: }
3814: return $currentstring;
3815: }
3816:
1.179 sakharuk 3817: #-- <noscript> tag (end tag required)
1.122 albertel 3818: sub start_noscript {
3819: my ($target,$token) = @_;
3820: my $currentstring = '';
3821: if ($target eq 'web') {
3822: $currentstring = $token->[4];
3823: }
3824: return $currentstring;
3825: }
3826:
3827: sub end_noscript {
3828: my ($target,$token) = @_;
3829: my $currentstring = '';
3830: if ($target eq 'web') {
3831: $currentstring = $token->[2];
3832: }
3833: return $currentstring;
3834: }
3835:
1.179 sakharuk 3836: #-- <object> tag (end tag required)
1.122 albertel 3837: sub start_object {
3838: my ($target,$token) = @_;
3839: my $currentstring = '';
3840: if ($target eq 'web') {
3841: $currentstring = $token->[4];
3842: }
3843: return $currentstring;
3844: }
3845:
3846: sub end_object {
3847: my ($target,$token) = @_;
3848: my $currentstring = '';
3849: if ($target eq 'web') {
3850: $currentstring = $token->[2];
3851: }
3852: return $currentstring;
3853: }
3854:
1.179 sakharuk 3855: #-- <optgroup> tag (end tag required)
1.122 albertel 3856: sub start_optgroup {
3857: my ($target,$token) = @_;
3858: my $currentstring = '';
3859: if ($target eq 'web') {
3860: $currentstring = $token->[4];
3861: }
3862: return $currentstring;
3863: }
3864:
3865: sub end_optgroup {
3866: my ($target,$token) = @_;
3867: my $currentstring = '';
3868: if ($target eq 'web') {
3869: $currentstring = $token->[2];
3870: }
3871: return $currentstring;
3872: }
3873:
1.179 sakharuk 3874: #-- <samp> tag (end tag required)
1.122 albertel 3875: sub start_samp {
3876: my ($target,$token) = @_;
3877: my $currentstring = '';
3878: if ($target eq 'web') {
3879: $currentstring = $token->[4];
1.179 sakharuk 3880: } elsif ($target eq 'tex') {
3881: $currentstring='\texttt{';
3882: }
1.122 albertel 3883: return $currentstring;
3884: }
3885:
3886: sub end_samp {
3887: my ($target,$token) = @_;
3888: my $currentstring = '';
3889: if ($target eq 'web') {
3890: $currentstring = $token->[2];
1.179 sakharuk 3891: } elsif ($target eq 'tex') {
3892: $currentstring='}';
3893: }
1.122 albertel 3894: return $currentstring;
3895: }
3896:
3897: #-- <server> tag
3898: sub start_server {
3899: my ($target,$token) = @_;
3900: my $currentstring = '';
3901: if ($target eq 'web') {
3902: $currentstring = $token->[4];
3903: }
3904: return $currentstring;
3905: }
3906:
3907: sub end_server {
3908: my ($target,$token) = @_;
3909: my $currentstring = '';
3910: if ($target eq 'web') {
3911: $currentstring = $token->[2];
3912: }
3913: return $currentstring;
3914: }
3915:
1.179 sakharuk 3916: #-- <spacer> tag (end tag forbidden)
1.122 albertel 3917: sub start_spacer {
3918: my ($target,$token) = @_;
1.279 foxr 3919: my $currentstring = &end_p(); # Close off any open <p> tag.
1.122 albertel 3920: if ($target eq 'web') {
1.277 foxr 3921: $currentstring .= $token->[4];
1.122 albertel 3922: }
3923: return $currentstring;
3924: }
3925:
3926: sub end_spacer {
3927: my ($target,$token) = @_;
3928: my $currentstring = '';
3929: if ($target eq 'web') {
3930: $currentstring = $token->[2];
3931: }
3932: return $currentstring;
3933: }
3934:
1.179 sakharuk 3935: #-- <span> tag (end tag required)
1.122 albertel 3936: sub start_span {
3937: my ($target,$token) = @_;
3938: my $currentstring = '';
3939: if ($target eq 'web') {
3940: $currentstring = $token->[4];
3941: }
3942: return $currentstring;
3943: }
3944:
3945: sub end_span {
3946: my ($target,$token) = @_;
3947: my $currentstring = '';
3948: if ($target eq 'web') {
3949: $currentstring = $token->[2];
3950: }
3951: return $currentstring;
3952: }
3953:
1.179 sakharuk 3954: #-- <tbody> tag (end tag optional)
1.122 albertel 3955: sub start_tbody {
3956: my ($target,$token) = @_;
3957: my $currentstring = '';
3958: if ($target eq 'web') {
3959: $currentstring = $token->[4];
3960: }
3961: return $currentstring;
3962: }
3963:
3964: sub end_tbody {
3965: my ($target,$token) = @_;
3966: my $currentstring = '';
3967: if ($target eq 'web') {
3968: $currentstring = $token->[2];
3969: }
3970: return $currentstring;
3971: }
3972:
1.166 sakharuk 3973: #-- <tfoot> tag (end tag optional)
1.122 albertel 3974: sub start_tfoot {
3975: my ($target,$token) = @_;
3976: my $currentstring = '';
3977: if ($target eq 'web') {
3978: $currentstring = $token->[4];
3979: }
3980: return $currentstring;
3981: }
3982:
3983: sub end_tfoot {
3984: my ($target,$token) = @_;
3985: my $currentstring = '';
3986: if ($target eq 'web') {
3987: $currentstring = $token->[2];
3988: }
3989: return $currentstring;
3990: }
3991:
1.166 sakharuk 3992: #-- <thead> tag (end tag optional)
1.122 albertel 3993: sub start_thead {
3994: my ($target,$token) = @_;
3995: my $currentstring = '';
3996: if ($target eq 'web') {
3997: $currentstring = $token->[4];
3998: }
3999: return $currentstring;
4000: }
1.10 www 4001:
1.122 albertel 4002: sub end_thead {
4003: my ($target,$token) = @_;
4004: my $currentstring = '';
4005: if ($target eq 'web') {
4006: $currentstring = $token->[2];
4007: }
4008: return $currentstring;
4009: }
1.119 www 4010:
1.122 albertel 4011: #-- <var> tag
4012: sub start_var {
1.44 sakharuk 4013: my ($target,$token) = @_;
4014: my $currentstring = '';
4015: if ($target eq 'web') {
1.122 albertel 4016: $currentstring = $token->[4];
1.163 sakharuk 4017: } elsif ($target eq 'tex') {
4018: $currentstring = '\textit{';
4019: }
1.44 sakharuk 4020: return $currentstring;
4021: }
1.10 www 4022:
1.122 albertel 4023: sub end_var {
4024: my ($target,$token) = @_;
1.44 sakharuk 4025: my $currentstring = '';
4026: if ($target eq 'web') {
1.163 sakharuk 4027: $currentstring = $token->[2];
4028: } elsif ($target eq 'tex') {
4029: $currentstring = '}';
1.44 sakharuk 4030: }
4031: return $currentstring;
4032: }
1.119 www 4033:
1.163 sakharuk 4034: #-- <wbr> tag (end tag forbidden)
1.122 albertel 4035: sub start_wbr {
4036: my ($target,$token) = @_;
4037: my $currentstring = '';
4038: if ($target eq 'web') {
4039: $currentstring = $token->[4];
4040: }
4041: return $currentstring;
1.98 albertel 4042: }
4043:
1.122 albertel 4044: sub end_wbr {
4045: my ($target,$token) = @_;
4046: my $currentstring = '';
4047: if ($target eq 'web') {
4048: $currentstring = $token->[2];
4049: }
4050: return $currentstring;
1.98 albertel 4051: }
1.134 sakharuk 4052:
4053: #-- <hideweboutput> tag
4054: sub start_hideweboutput {
4055: my ($target,$token) = @_;
4056: if ($target eq 'web') {
4057: &Apache::lonxml::startredirection();
4058: }
4059: return '';
4060: }
4061:
4062: sub end_hideweboutput {
4063: my ($target,$token) = @_;
4064: my $currentstring = '';
4065: if ($target eq 'web') {
4066: $currentstring = &Apache::lonxml::endredirection();
4067: }
4068: return '';
4069: }
4070:
1.94 sakharuk 4071:
4072: sub image_replication {
4073: my $src = shift;
1.187 albertel 4074: if (not -e $src) { &Apache::lonnet::repcopy($src); }
4075: #replicates eps or ps
4076: my $epssrc = my $pssrc = $src;
4077: $epssrc =~ s/\.(gif|jpg|jpeg|png)$/.eps/i;
4078: $pssrc =~ s/\.(gif|jpg|jpeg|png)$/.ps/i;
4079: if (not -e $epssrc && not -e $pssrc) {
4080: my $result=&Apache::lonnet::repcopy($epssrc);
1.264 raeburn 4081: if ($result ne 'ok') { &Apache::lonnet::repcopy($pssrc); }
1.94 sakharuk 4082: }
4083: return '';
1.195 sakharuk 4084: }
1.275 foxr 4085: #
4086: # Get correct sizing parameter for an image given
4087: # it's initial ht. and wid. This allows sizing of
4088: # images that are generated on-the-fly (e.g. gnuplot)
4089: # as well as serving as a utility for image_size.
4090: #
4091: # Parameter:
4092: # height_param
4093: # width_param - Initial picture dimensions.
4094: # scaling - A scale factor.
4095: # parstack, - the current stack of tag attributes
4096: # from the xml parser
4097: # safeeval, - pointer to the safespace
4098: # depth, - from what level in the stack to look for attributes
4099: # (assumes -1 if unspecified)
4100: # cis - look for attrubutes case insensitively
4101: # (assumes false)
4102: #
4103: # Returns:
4104: # height, width - new dimensions.
4105: #
4106: sub resize_image {
4107: my ($height_param, $width_param, $scaling,
4108: $parstack, $safeeval, $depth, $cis) = @_;
4109:
4110: # First apply the scaling...
1.271 foxr 4111:
1.275 foxr 4112: $height_param = $height_param * $scaling;
4113: $width_param = $width_param * $scaling;
1.261 foxr 4114:
1.197 sakharuk 4115: #do we have any specified LaTeX size of the picture?
1.261 foxr 4116: my $toget='TeXwidth';
4117: if ($cis) {
4118: $toget=lc($toget);
4119: }
1.256 albertel 4120: my $TeXwidth = &Apache::lonxml::get_param($toget,$parstack,
4121: $safeeval,$depth,$cis);
4122: $toget='TeXheight'; if ($cis) { $toget=lc($toget); }
4123: my $TeXheight = &Apache::lonxml::get_param($toget,$parstack,
4124: $safeeval,$depth,$cis);
1.197 sakharuk 4125: #do we have any specified web size of the picture?
4126: my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval,
1.256 albertel 4127: $depth,1);
4128: if ($TeXwidth) {
1.252 matthew 4129: my $old_width_param=$width_param;
1.197 sakharuk 4130: if ($TeXwidth=~/(\d+)\s*\%/) {
1.267 albertel 4131: $width_param = $1*$env{'form.textwidth'}/100;
1.197 sakharuk 4132: } else {
4133: $width_param = $TeXwidth;
4134: }
1.266 albertel 4135: if ($TeXheight) {
4136: $height_param = $TeXheight;
4137: } elsif ($old_width_param) {
4138: $height_param=$TeXwidth/$old_width_param*$height_param;
4139: }
1.256 albertel 4140: } elsif ($TeXheight) {
1.248 foxr 4141: $height_param = $TeXheight;
1.266 albertel 4142: if ($height_param) {
4143: $width_param = $TeXheight/$height_param*$width_param;
4144: }
1.256 albertel 4145: } elsif ($width) {
1.252 matthew 4146: my $old_width_param=$width_param;
1.256 albertel 4147: $width_param = $width*$scaling;
1.266 albertel 4148: if ($old_width_param) {
4149: $height_param=$width_param/$old_width_param*$height_param;
4150: }
1.252 matthew 4151: }
1.267 albertel 4152: if ($width_param > $env{'form.textwidth'}) {
1.252 matthew 4153: my $old_width_param=$width_param;
1.267 albertel 4154: $width_param =0.95*$env{'form.textwidth'};
1.266 albertel 4155: if ($old_width_param) {
4156: $height_param=$width_param/$old_width_param*$height_param;
4157: }
1.197 sakharuk 4158: }
1.275 foxr 4159:
4160: return ($height_param, $width_param);
4161: }
4162:
4163: sub image_size {
4164: my ($src,$scaling,$parstack,$safeeval,$depth,$cis)=@_;
4165:
4166: #size of image from gif/jpg/jpeg/png
4167: my $ressrc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
4168: if (-e $ressrc) {
4169: $src = $ressrc;
4170: }
4171: my $image = Image::Magick->new;
4172: my $current_figure = $image->Read($src);
4173: my $width_param = $image->Get('width');
4174: my $height_param = $image->Get('height');
4175: &Apache::lonxml::debug("Image magick says: $src : Height = $height_param width = $width_param");
4176: undef($image);
4177:
4178: ($height_param, $width_param) = &resize_image($height_param, $width_param,
4179: $scaling, $parstack, $safeeval,
4180: $depth, $cis);
4181:
1.248 foxr 4182: return ($height_param, $width_param);
4183: }
4184:
4185: sub image_width {
4186: my ($height, $width) = &image_size(@_);
4187: return $width;
4188: }
4189: # Not yet 100% sure this is correct in all circumstances..
4190: # due to my uncertainty about mods to image_size.
4191: #
4192: sub image_height {
4193: my ($height, $width) = &image_size(@_);
4194: return $height;
1.197 sakharuk 4195: }
4196:
1.256 albertel 4197: sub get_eps_image {
4198: my ($src)=@_;
1.261 foxr 4199: my $orig_src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1], $src);
1.285 foxr 4200:
4201: # In order to prevent the substitution of the alt text, we need to
4202: # be sure the orig_src file is on system now so:
4203:
4204: if (! -e $orig_src) {
4205: &Apache::lonnet::repcopy($orig_src); # Failure is not completely fatal.
4206: }
1.275 foxr 4207: &Apache::lonxml::debug("get_eps_image: Original image: $orig_src");
1.282 foxr 4208: my ($spath, $sname, $sext) = fileparse($src, qr/\.(gif|png|jpg|jpeg)/i);
1.256 albertel 4209: $src=~s/\.(gif|png|jpg|jpeg)$/\.eps/i;
4210: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.275 foxr 4211: &Apache::lonxml::debug("Filelocation gives: $src");
1.256 albertel 4212: if (! -e $src) {
1.261 foxr 4213: &Apache::lonxml::debug("$src does not exist");
1.264 raeburn 4214: if (&Apache::lonnet::repcopy($src) ne 'ok' ) {
1.261 foxr 4215: &Apache::lonxml::debug("Repcopy of $src failed (1)");
1.256 albertel 4216: #if replication failed try to find ps file
4217: $src=~s/\.eps$/\.ps/;
1.261 foxr 4218: &Apache::lonxml::debug("Now looking for $src");
1.270 foxr 4219: #if no ps file try to replicate it.
4220: my $didrepcopy = &Apache::lonnet::repcopy($src);
4221: &Apache::lonxml::debug("repcopy of $src ... $didrepcopy");
4222: if ( (not -e $src) ||
4223: ($didrepcopy ne 'ok')) {
1.261 foxr 4224: &Apache::lonxml::debug("Failed to find or replicate $src");
4225:
1.256 albertel 4226: #if replication failed try to produce eps file dynamically
4227: $src=~s/\.ps$/\.eps/;
4228: my $temp_file;
1.267 albertel 4229: open(FILE,">>/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat");
1.256 albertel 4230: my $newsrc=$orig_src;
4231: $newsrc =~ s|(.*)/res/|/home/httpd/html/res/|;
1.275 foxr 4232: &Apache::lonxml::debug("queueing $newsrc for dynamic eps production.");
1.256 albertel 4233: print FILE "$newsrc\n";
1.261 foxr 4234: close FILE;
1.256 albertel 4235: $src=~s|/home/httpd/html/res|/home/httpd/prtspool|;
4236: $src=~s|/home/([^/]*)/public_html/|/home/httpd/prtspool/$1/|;
1.283 albertel 4237: if ($sext ne "") { # Put the ext. back in to uniquify.
4238: $src =~ s/\.eps$/$sext.eps/;
4239: }
1.256 albertel 4240: }
4241: }
4242: }
4243: my ($path,$file)=($src=~m|(.*)/([^/]*)$|);
1.261 foxr 4244: &Apache::lonxml::debug("get_eps_image returning: $path / $file<BR />");
1.256 albertel 4245: return ($path.'/',$file);
4246: }
4247:
1.195 sakharuk 4248: sub eps_generation {
4249: my ($src,$file,$width_param) = @_;
1.267 albertel 4250: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat";
1.195 sakharuk 4251: my $temp_file = Apache::File->new('>>'.$filename);
4252: print $temp_file "$src\n";
4253: my $newsrc = $src;
4254: $newsrc =~ s/(\.gif|\.jpg|\.jpeg)$/\.eps/i;
4255: $newsrc=~s/\/home\/httpd\/html\/res//;
4256: $newsrc=~s/\/home\/([^\/]*)\/public_html\//\/$1\//;
4257: $newsrc=~s/\/\.\//\//;
4258: $newsrc=~s/\/([^\/]+)\.(ps|eps)/\//;
1.213 sakharuk 4259: if ($newsrc=~/\/home\/httpd\/lonUsers\//) {
4260: $newsrc=~s/\/home\/httpd\/lonUsers//;
4261: $newsrc=~s/\/([^\/]+)\/(\w)\/(\w)\/(\w)\//\/$1\//;
4262: }
1.239 sakharuk 4263: if ($newsrc=~/\/userfiles\//) {
4264: return ' \graphicspath{{'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4265: } else {
4266: return ' \graphicspath{{/home/httpd/prtspool'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4267: }
1.197 sakharuk 4268: }
4269:
4270: sub file_path {
4271: my $src=shift;
4272: my ($file,$path);
4273: if ($src =~ m!(.*)/([^/]*)$!) {
4274: $file = $2;
4275: $path = $1.'/';
4276: }
4277: return $file,$path;
1.126 sakharuk 4278: }
1.294 foxr 4279: # Converts a measurement in to mm from any of
4280: # the other valid LaTeX units of measure.
4281: # If the units of measure are missing from the
4282: # parameter, it is assumed to be in and returned
4283: # with mm units of measure
1.126 sakharuk 4284: sub recalc {
4285: my $argument = shift;
4286: if (not $argument=~/(mm|cm|in|pc|pt)/) {return $argument.' mm';}
1.132 sakharuk 4287: $argument=~/\s*(\d+\.?\d*)\s*(mm|cm|in|pc|pt)/;
1.126 sakharuk 4288: my $value=$1;
4289: my $units=$2;
4290: if ($units eq 'cm') {
4291: $value*=10;
4292: } elsif ($units eq 'in') {
4293: $value*=25.4;
4294: } elsif ($units eq 'pc') {
4295: $value*=(25.4*12/72.27);
4296: } elsif ($units eq 'pt') {
4297: $value*=(25.4/72.27);
4298: }
4299: return $value.' mm';
1.94 sakharuk 4300: }
1.184 sakharuk 4301:
4302: sub LATEX_length {
4303: my $garbage=shift;
1.206 sakharuk 4304: $garbage=~s/^\s+$//;
4305: $garbage=~s/^\s+(\S.*)/$1/;#space before
4306: $garbage=~s/(.*\S)\s+$/$1/;#space after
4307: $garbage=~s/(\s)+/$1/;#only one space
4308: $garbage=~s/(\\begin{([^\}]+)}|\\end{([^\}]+)})//g;#remove LaTeX \begin{...} and \end{...}
4309: $garbage=~s/(\$\_\{|\$\_|\$\^{|\$\^|\}\$)//g;#remove $_{,$_,$^{,$^,}$
4310: $garbage=~s/([^\\])\$/$1/g;#$
4311: $garbage=~s/(\\ensuremath\{\_\{|\\ensuremath\{\_|\\ensuremath\{\^{|\\ensuremath\{\^|\})//g;#remove \ensuremath{...}
4312: $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 4313: $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;
4314: $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;
4315: $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 4316: $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;
4317: $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;
4318: $garbage=~s/(\\hat{([^}]+)}|\\check{([^}]+)}|\\dot{([^}]+)}|\\breve{([^}]+)}|\\acute{([^}]+)}|\\ddot{([^}]+)}|\\grave{([^}]+)}|\\tilde{([^}]+)}|\\mathring{([^}]+)}|\\bar{([^}]+)}|\\vec{([^}]+)})/$1/g;
4319: #remove some other LaTeX command
4320: $garbage=~s|\\(\w+)\\|\\|g;
4321: $garbage=~s|\\(\w+)(\s*)|$2|g;
4322: $garbage=~s|\+|11|g;
1.184 sakharuk 4323: my $value=length($garbage);
4324: return $value;
4325: }
4326:
4327:
1.287 foxr 4328: # is_inside_of $tagstack $tag
4329: # This sub returns true if the current state of Xml processing
4330: # is inside of the tag.
4331: # Parameters:
4332: # tagstack - The tagstack from the parser.
4333: # tag - The tag (without the <>'s.).
4334: # Sample usage:
4335: # if (is_inside_of($tagstack "table")) {
4336: # # I'm in a table....
4337: # }
4338: sub is_inside_of {
4339: my ($tagstack, $tag) = @_;
4340: my @stack = @$tagstack;
4341: for (my $i = ($#stack - 1); $i >= 0; $i--) {
4342: if ($stack[$i] eq $tag) {
4343: return 1;
4344: }
4345: }
4346: return 0;
4347: }
1.184 sakharuk 4348:
1.94 sakharuk 4349:
1.1 sakharuk 4350: 1;
4351: __END__
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