Annotation of loncom/xml/londefdef.pm, revision 1.322
1.1 sakharuk 1: # The LearningOnline Network with CAPA
2: # Tags Default Definition Module
3: #
1.322 ! albertel 4: # $Id: londefdef.pm,v 1.321 2006/02/21 10:27:43 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='';
2042: #width of columns from TeXwidth attributes
1.294 foxr 2043:
1.206 sakharuk 2044: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2045: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2046: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]<$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn]) {
2047: $Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]=$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn];
2048: }
2049: }
2050: }
2051: #free space and number of empty columns
2052: my ($available_space,$empty_columns)=($Apache::londefdef::table[-1]{'width'},0);
1.228 sakharuk 2053: if ($#Apache::londefdef::table ne 0) {$available_space=0.9*$available_space;}
1.206 sakharuk 2054: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2055: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]==0) {
2056: $empty_columns++;
2057: } else {
2058: $available_space=$available_space-$Apache::londefdef::table[-1]{'TeXlen'}[0][$jn];
2059: }
2060: }
2061: #boundaries for contents columns
2062: my @min_len=();#columns can not be narrower
2063: my @max_len=();#maximum length of column
2064: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2065: my ($localmin,$localmax)=(0,0);
2066: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2067: if ($localmin<$Apache::londefdef::table[-1]{'minlen'}[$in][$jn]) {
2068: $localmin=$Apache::londefdef::table[-1]{'minlen'}[$in][$jn];
2069: }
2070: if ($localmax<$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn]) {
2071: $localmax=$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn];
2072: }
2073: }
2074: push @min_len, $localmin;
2075: push @max_len, $localmax;
1.122 albertel 2076: }
1.206 sakharuk 2077: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2078: my $localmin=0,;
2079: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2080: if ($localmin<$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn]) {
2081: $localmin=$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn];
2082: }
2083: }
1.229 sakharuk 2084: if ($max_len[$jn]<$localmin) {
2085: $max_len[$jn]=$localmin;
2086: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
2087: }#object size is bigger
2088: if ($min_len[$jn]<$localmin) {
2089: $min_len[$jn]=$localmin;
2090: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
2091: }#object size is bigger
1.206 sakharuk 2092: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]!=0) {
2093: $min_len[$jn]=0;
2094: $max_len[$jn]=0;
2095: }
2096: }
2097: #final adjustment of column width
2098: my @fwidth=@{$Apache::londefdef::table[-1]{'TeXlen'}[0]};#final width array
2099: my @adjust=();
2100: #step 1. adjustment by maximum value
2101: my $space_neeeded=0;
2102: for (my $jn=0;$jn<=$#max_len;$jn++) {
2103: $space_neeeded=$space_neeeded+$max_len[$jn];
2104: }
2105: if ($space_neeeded<=$available_space) {
2106: for (my $jn=0;$jn<=$#max_len;$jn++) {
2107: if ($fwidth[$jn]==0) {
2108: $fwidth[$jn]=$max_len[$jn];
1.53 sakharuk 2109: }
1.51 sakharuk 2110: }
1.206 sakharuk 2111: } else {
2112: #step 2. adjustment by minimum value (estimation)
2113: $space_neeeded=0;
2114: for (my $jn=0;$jn<=$#min_len;$jn++) {
2115: $space_neeeded+=$min_len[$jn];
2116: }
2117: if ($space_neeeded>$available_space) {
2118: $WARNING=' \textbf{NOT ENOUGH SPACE FOR TABLE} ';
2119: for (my $jn=0;$jn<=$#max_len;$jn++) {
2120: if ($fwidth[$jn]==0) {
2121: $fwidth[$jn]=$min_len[$jn];
2122: }
2123: }
1.229 sakharuk 2124: #check if we have objects which can be scaled
2125: my $how_many_to_scale=0;
2126: my @to_scale=();
2127: for (my $jn=0;$jn<=$#max_len;$jn++) {
2128: if ($Apache::londefdef::table[-1]{'objectsignal'}[$jn] eq '1') {
2129: $how_many_to_scale++;
2130: push @to_scale, $jn;
2131: }
2132: }
2133: if ($how_many_to_scale>0) {
2134: my $space_to_adjust=($space_neeeded-$available_space)/$how_many_to_scale;
2135: foreach my $jn (@to_scale) {
2136: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2137: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/;
2138: if ($1 ne '') {
2139: my $current_length=&recalc($1);
2140: $current_length=~/(\d+\.?\d*)/;
2141: $current_length=$current_length-$space_to_adjust;
2142: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/width=$current_length mm/;
2143: }
2144: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/\[(\d+\.?\d*)\s*mm\]/;
2145: if ($1 ne '') {
2146: my $current_length=$1;
2147: $current_length=$current_length-$space_to_adjust;
2148: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/\[(\d+\.?\d*)\s*mm\]/\[$current_length mm\]/;
2149: }
2150: }
2151: $fwidth[$jn]=$fwidth[$jn]-$space_to_adjust;
2152: }
2153: }
1.206 sakharuk 2154: } else {
2155: #step 3. adjustment over minimal + corrections
2156: my $enlarge_coef=$available_space/$space_neeeded;
2157: my $acsessive=0;
2158: for (my $jn=0;$jn<=$#min_len;$jn++) {
2159: $adjust[$jn]=$min_len[$jn]*$enlarge_coef;
2160: if ($adjust[$jn]>$max_len[$jn]) {
2161: $fwidth[$jn]=$max_len[$jn];
2162: $acsessive=$acsessive+$adjust[$jn]-$max_len[$jn];
2163: $adjust[$jn]=0;
2164: }
2165: }
2166: if ($acsessive>0) {
2167: #we have an excess of space and can redistribute it
2168: my $notempty_columns=0;
2169: for (my $jn=0;$jn<=$#min_len;$jn++) {
2170: if ($adjust[$jn]!=0) {
2171: $notempty_columns++;
2172: }
2173: }
2174: my $per_column=$acsessive/$notempty_columns;
2175: for (my $jn=0;$jn<=$#min_len;$jn++) {
2176: if ($adjust[$jn]!=0) {
2177: $adjust[$jn]+=$per_column;
2178: $fwidth[$jn]=$adjust[$jn];
2179: }
1.223 sakharuk 2180: }
2181: } else {
2182: for (my $jn=0;$jn<=$#min_len;$jn++) {
2183: $fwidth[$jn]=$adjust[$jn];
1.206 sakharuk 2184: }
2185: }
1.203 sakharuk 2186: }
2187: }
1.222 sakharuk 2188: #use all available width if it is defined in % or as TeXwidth
2189: if (($Apache::londefdef::table[-1]{'percent'}==1) || ($Apache::londefdef::table[-1]{'forcetablewidth'}==1)) {
1.203 sakharuk 2190: my $current=0;
1.206 sakharuk 2191: for (my $i=0;$i<=$#fwidth;$i++) {
2192: $current+=$fwidth[$i];
1.203 sakharuk 2193: }
2194: my $coef=$Apache::londefdef::table[-1]{'width'}/$current;
1.206 sakharuk 2195: for (my $i=0;$i<=$#fwidth;$i++) {
2196: $fwidth[$i]*=$coef;
2197: }
2198: }
2199: #removing of empty columns if allowed
1.208 sakharuk 2200: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
1.206 sakharuk 2201: if ($permission eq 'yes') {
2202: my @cleaned_table=();
2203: my @cleaned_header=();
2204: my $colind=0;
2205: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2206: if ($fwidth[$jn]!=0) {
2207: #we need to copy column
2208: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2209: $cleaned_table[$in][$colind]=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
2210: $cleaned_header[$colind]=$fwidth[$jn];
2211: }
2212: $colind++;
2213: }
1.122 albertel 2214: }
1.206 sakharuk 2215: $Apache::londefdef::table[-1]{'content'}=\@cleaned_table;
2216: @fwidth=@cleaned_header;
1.122 albertel 2217: }
1.206 sakharuk 2218: #construct header of the table
2219: my $header_of_table = '{'.$Apache::londefdef::table[-1]{'vvinc'};
2220: for (my $in=0;$in<=$#fwidth;$in++) {
2221: $header_of_table.='p{'.$fwidth[$in].' mm}'.$Apache::londefdef::table[-1]{'vvinc'};
2222: }
2223: $header_of_table .= '}';
1.126 sakharuk 2224: #fill the table
2225: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1.306 foxr 2226: my $have_rowspan = 0;
1.206 sakharuk 2227: for (my $jn=0;$jn<=$#fwidth;$jn++) {
1.320 foxr 2228:
2229: #-----------------------------------------------------------
2230: # I think this order of doing things will ensure that
2231: # single rowspan, columspan and combined row/colspans will
2232: # work correctly. LaTeX is delicate here.
2233: # RF.
2234:
2235: # Start a rowspan if necessary:
2236:
2237: my $rowspan = $Apache::londefdef::table[-1]{'rowspan'}[$in][$jn];
2238: my $colspan = $Apache::londefdef::table[-1]{'colspan'}[$in][$jn];
1.304 foxr 2239: #
2240: # Do the appropriate magic if this has a colspan
2241: #
1.320 foxr 2242:
1.304 foxr 2243: if ($colspan > 1) {
2244: $output .= '\multicolumn{'.
2245: $colspan
2246: .'}{|l|}{';
2247: }
1.306 foxr 2248:
2249: if ($rowspan > 1) {
2250: $have_rowspan++;
2251: $output .= '\multirow{'.$rowspan.'}[0]{'.$fwidth[$jn].'mm}{';
2252: }
2253: if (($rowspan eq '^') || ($rowspan eq '_')) {
2254: $have_rowspan++;
2255: }
1.320 foxr 2256: #--------------------------------------------------------------
1.306 foxr 2257:
1.206 sakharuk 2258: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
1.309 albertel 2259: $output.=¢er_correction().'\begin{center}';
1.206 sakharuk 2260: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
2261: $output.=' \hfill \llap{'
2262: }
2263: $output.=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
2264: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
1.314 albertel 2265: $output.='\end{center}';
1.206 sakharuk 2266: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
2267: $output.='} ';
2268: }
1.306 foxr 2269: # Close off any open multirow:
2270:
2271: if ($rowspan > 1) {
2272: $output .= '}';
2273: }
1.304 foxr 2274: # Close off the colspan...
2275: #
2276: if ($colspan > 1) {
2277: $output .= '}';
2278: $jn += $colspan-1; # Adjust for number of rows really left.
2279: }
1.206 sakharuk 2280: if ($jn!=$#fwidth) {$output.=' '.$Apache::londefdef::table[-1]{'vinc'};}
2281: }
1.306 foxr 2282: # If have_rowspan > 0, and borders are on, then
2283: # we need to do more than put an \hline at the bottom of row.
2284: # we need to do the appropriate \cline to ensure that
2285: # the spanned rows don't have \hlines through them.
2286:
2287: if (($Apache::londefdef::table[-1]{'hinc'} =~ /\\hline/) && $have_rowspan) {
2288: $output .= ' \\\\ ';
2289: for (my $jn=0; $jn<=$#fwidth;$jn++) {
2290: my $rowspan = $Apache::londefdef::table[-1]{'rowspan'}[$in][$jn];
1.320 foxr 2291: if ($rowspan ne "^") {
2292: if (($rowspan <= 1) || ($rowspan eq '_')) {
2293: my $column = $jn+1;
2294: $output .= '\cline{'.$column.'-'.$column.'} ';
2295: }
1.306 foxr 2296: }
2297: }
2298:
2299: } else {
2300: $output.=' \\\\ '.$Apache::londefdef::table[-1]{'hinc'}.' ';
2301: }
1.122 albertel 2302: }
1.281 foxr 2303: # Note that \newline destroys alignment env's produced by e.g. <div>
2304: # $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut\newline\strut ';
2305: $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut'.'\\\\'."\n".'\strut ';
1.127 sakharuk 2306: if ($#Apache::londefdef::table > 0) {
2307: my $inmemory = $Apache::londefdef::table[-1]{'output'};
1.294 foxr 2308: # Figure out max/and min width by summing us and then
2309: # apply that to the current column of the table we nest in
2310: # if it's larger than the current width or the current width
2311: # is undefined.
2312: #
2313: my $min_nested_width = 0;
2314: my $max_nested_width = 0;
2315: for (my $col = 0; $col <= $Apache::londefdef::table[-1]{'counter_columns'}; $col++) {
2316: $min_nested_width += $min_len[$col];
2317: $max_nested_width += $max_len[$col];
1.300 foxr 2318:
1.294 foxr 2319: }
2320: # Fudge in an extra 5 mm for borders etc:
2321:
2322: $min_nested_width += 5;
2323: $max_nested_width += 5;
2324:
2325: my $outer_column = $Apache::londefdef::table[-2]{'counter_columns'};
2326: my $outer_row = $Apache::londefdef::table[-2]{'row_number'};
2327: if ($min_nested_width > $Apache::londefdef::table[-2]{'minlen'}[$outer_row][$outer_column]) {
2328: $Apache::londefdef::table[-2]{'minlen'}[$outer_row][$outer_column] = $min_nested_width;
2329: }
2330: if ($max_nested_width > $Apache::londefdef::table[-2]{'maxlen'}[$outer_row][$outer_column]) {
2331: $Apache::londefdef::table[-2]{'maxlen'}[$outer_row][$outer_column] = $max_nested_width;
2332: }
2333:
1.127 sakharuk 2334: pop @Apache::londefdef::table;
1.129 sakharuk 2335: push @{$Apache::londefdef::table[-1]{'include'}}, $inmemory;
1.127 sakharuk 2336: } else {
2337: $currentstring .= $Apache::londefdef::table[-1]{'output'};
2338: pop @Apache::londefdef::table;
1.143 sakharuk 2339: undef @Apache::londefdef::table;
1.127 sakharuk 2340: }
1.122 albertel 2341: }
2342: return $currentstring;
2343: }
2344:
1.166 sakharuk 2345: #-- <tr> tag (end tag optional)
1.122 albertel 2346: sub start_tr {
2347: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2348: my $currentstring = '';
2349: if ($target eq 'web') {
2350: $currentstring = $token->[4];
2351: } elsif ($target eq 'tex') {
2352: $Apache::londefdef::table[-1]{'row_number'}++;
1.206 sakharuk 2353: my $alignchar=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.122 albertel 2354: if ($alignchar ne '') {
1.206 sakharuk 2355: push @ {$Apache::londefdef::table[-1]{'rows'} },substr($alignchar,0,1);
1.122 albertel 2356: } else {
2357: push @ {$Apache::londefdef::table[-1]{'rows'} }, 'l';
2358: }
2359: push ( @{ $Apache::londefdef::table[-1]{'rowdata'} }, $Apache::londefdef::table[-1]{'hinc'});
1.300 foxr 2360: #
2361: # Need to save the number of table columns to preserve the max # columns.
2362: #
2363: $Apache::londefdef::table[-1]{'prior_columns'} = $Apache::londefdef::table[-1]{'counter_columns'};
1.122 albertel 2364: $Apache::londefdef::table[-1]{'counter_columns'} = -1;
1.206 sakharuk 2365: push @ {$Apache::londefdef::table[-1]{'TeXlen'}}, [];
2366: push @ {$Apache::londefdef::table[-1]{'objectlen'}}, [];
2367: push @ {$Apache::londefdef::table[-1]{'minlen'}}, [];
2368: push @ {$Apache::londefdef::table[-1]{'maxlen'}}, [];
2369: push @ {$Apache::londefdef::table[-1]{'content'}}, [];
1.122 albertel 2370: }
2371: return $currentstring;
2372: }
2373:
2374: sub end_tr {
1.160 sakharuk 2375: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 2376: my $currentstring = &end_p(); # Close any pending <p> in the row.
1.122 albertel 2377: if ($target eq 'web') {
1.277 foxr 2378: $currentstring .= $token->[2];
1.122 albertel 2379: } elsif ($target eq 'tex') {
1.160 sakharuk 2380: if ($Apache::londefdef::TD_redirection) {
2381: &end_td_tex($parstack,$parser,$safeeval);
2382: }
1.300 foxr 2383: # Counter columns must be the maximum number of columns seen
2384: # in the table so far so:
2385: if ($Apache::londefdef::table[-1]{'prior_columns'} > $Apache::londefdef::table[-1]{'counter_columns'}) {
2386: $Apache::londefdef::table[-1]{'counter_columns'} = $Apache::londefdef::table[-1]{'prior_columns'};
2387: }
1.295 foxr 2388:
2389:
1.294 foxr 2390:
1.122 albertel 2391: }
2392: return $currentstring;
2393: }
2394:
1.166 sakharuk 2395: #-- <td> tag (end tag optional)
1.122 albertel 2396: sub start_td {
2397: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2398: my $currentstring = '';
2399: if ($target eq 'web') {
2400: $currentstring = $token->[4];
2401: } elsif ($target eq 'tex') {
1.160 sakharuk 2402: $Apache::londefdef::TD_redirection = 1;
1.159 sakharuk 2403: &tag_check('tr','td',$tagstack,$parstack,$parser,$safeeval);
1.122 albertel 2404: }
2405: return $currentstring;
2406: }
1.159 sakharuk 2407:
2408: sub tag_check {
2409: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
1.160 sakharuk 2410: my @ar=@$parstack;
2411: for (my $i=$#ar-1;$i>=0;$i--) {
2412: if (lc($$tagstack[$i]) eq $good_tag) {
2413: &start_td_tex($parstack,$parser,$safeeval);
2414: last;
2415: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2416: splice @ar, $i+1;
2417: &end_td_tex(\@ar,$parser,$safeeval);
2418: &start_td_tex($parstack,$parser,$safeeval);
2419: last;
1.159 sakharuk 2420: }
1.160 sakharuk 2421: }
1.159 sakharuk 2422: return '';
2423: }
2424:
2425: sub start_td_tex {
2426: my ($parstack,$parser,$safeeval) = @_;
1.206 sakharuk 2427: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2428: if ($alignchar eq '') {
2429: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
1.159 sakharuk 2430: }
1.206 sakharuk 2431: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
1.159 sakharuk 2432: $Apache::londefdef::table[-1]{'counter_columns'}++;
1.206 sakharuk 2433: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2434: if (defined $TeXwidth) {
2435: my $current_length=&recalc($TeXwidth);
2436: $current_length=~/(\d+\.?\d*)/;
2437: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2438: }
1.159 sakharuk 2439: &Apache::lonxml::startredirection();
2440: return '';
2441: }
2442:
2443: sub end_td_tex {
2444: my ($parstack,$parser,$safeeval) = @_;
1.304 foxr 2445: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2446: my $current_column = $Apache::londefdef::table[-1]{'counter_columns'};
1.303 foxr 2447: my $data = &Apache::lonxml::endredirection();
2448:
1.305 foxr 2449: # The rowspan array of the table indicates which cells are part of a span.
2450: # n indicates the start of a span set of n rows.
2451: # ^ indicates a cell that continues a span set.
1.306 foxr 2452: # _ indicates the cell is at the bottom of a span set.
1.305 foxr 2453: # If this and subsequent cells are part of a rowspan, we must
2454: # push along the row until we find one that is not.
2455:
2456: while ((defined $Apache::londefdef::table[-1]{'rowspan'}[$current_row] [$current_column])
1.306 foxr 2457: && ($Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column] =~ /[\^\_]/)) {
1.305 foxr 2458: # Part of a span.
2459: push @ {$Apache::londefdef::table[-1]{'content'}[-1]}, '';
2460: $current_column++;
2461: }
2462: $Apache::londefdef::table[-1]{'counter_columns'} = $current_column;
2463:
2464:
1.320 foxr 2465: # Get the column and row spans.
2466: # Colspan can be done via \multicolumn if I can figure out the data structs.
2467:
2468: my $colspan = &Apache::lonxml::get_param('colspan', $parstack, $safeeval, undef, 0);
2469: if (!$colspan) {
2470: $colspan = 1;
2471: }
1.305 foxr 2472:
2473: my $rowspan = &Apache::lonxml::get_param('rowspan', $parstack, $safeeval, undef, 0);
2474: if (!$rowspan) {
2475: $rowspan = 1;
2476: }
2477:
1.303 foxr 2478:
1.305 foxr 2479:
1.320 foxr 2480: for (my $c = 0; $c < $colspan; $c++) {
2481: $Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column+$c] = $rowspan;
2482: for (my $i = 1; $i < $rowspan; $i++) {
2483: $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column+$c] = '^';
2484: if ($i == ($rowspan-1)) {
2485: $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column+$c] = '_';
2486: }
1.306 foxr 2487: }
1.305 foxr 2488: }
1.304 foxr 2489:
1.159 sakharuk 2490: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2491: if (defined $TeXwidth) {
1.206 sakharuk 2492: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2493: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2494: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
1.159 sakharuk 2495: } else {
1.206 sakharuk 2496: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2497: my $garbage_data=$data;
2498: my $fwidth=0;
2499: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2500: my $current_length=&recalc($1);
2501: $current_length=~/(\d+\.?\d*)/;
2502: if ($fwidth<$1) {$fwidth=$1;}
2503: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2504: }
2505: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2506: my $current_length=$1;
2507: if ($fwidth<$current_length) {$fwidth=$current_length;}
2508: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
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'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
1.231 sakharuk 2514: } elsif ($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)*/) {
2515: my $garbage_data=$data;
2516: my $fwidth=0;
2517: while ($garbage_data=~/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)\s*\}/) {
2518: my $current_length=&recalc($1);
2519: $current_length=~/(\d+\.?\d*)/;
2520: if ($fwidth<$1) {$fwidth=$1;}
2521: $garbage_data=~s/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2522: }
2523: while ($garbage_data=~/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2524: my $current_length=&recalc($1);
2525: $current_length=~/(\d+\.?\d*)/;
2526: if ($fwidth<$1) {$fwidth=$1;}
2527: $garbage_data=~s/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2528: }
2529: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2530: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2531: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2532: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2533: $data=~s/\\\\\s*$//;
1.159 sakharuk 2534: } else {
1.166 sakharuk 2535: $data=~s/^\s+(\S.*)/$1/;
1.159 sakharuk 2536: $data=~s/(.*\S)\s+$/$1/;
1.166 sakharuk 2537: $data=~s/(\s)+/$1/;
1.206 sakharuk 2538: my ($current_length,$min_length)=(0,0);
1.166 sakharuk 2539: if ($data=~/\\vskip/) {
2540: my $newdata=$data;
2541: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2542: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2543: foreach my $elementdata (@newdata) {
1.206 sakharuk 2544: my $lengthnewdata=2.5*&LATEX_length($elementdata);
1.166 sakharuk 2545: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
1.206 sakharuk 2546: my @words=split(/ /,$elementdata);
2547: foreach my $word (@words) {
2548: my $lengthword=2.5*&LATEX_length($word);
2549: if ($min_length<$lengthword) {$min_length=$lengthword;}
2550: }
1.166 sakharuk 2551: }
2552: } else {
1.206 sakharuk 2553: $current_length=2.5*&LATEX_length($data);
2554: my @words=split(/ /,$data);
2555: foreach my $word (@words) {
1.228 sakharuk 2556: my $lengthword=2*&LATEX_length($word);
1.206 sakharuk 2557: if ($min_length<$lengthword) {$min_length=$lengthword;}
2558: }
1.166 sakharuk 2559: }
1.206 sakharuk 2560: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2561: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2562: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2563: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
1.159 sakharuk 2564: }
2565: }
1.302 foxr 2566: # Substitute all of the tables nested in this cell in their appropriate places.
2567:
2568:
2569: my $nested_count = $#{$Apache::londefdef::table[-1]{'include'}}; # This one is constant...
2570: for (my $in=0; $in<=$nested_count; $in++) {
1.301 foxr 2571: my $nested = shift @{$Apache::londefdef::table[-1]{'include'}};
2572: $nested =~ s/\\end\{tabular\}\\strut\\\\/\\end\{tabular\}/;
2573: # $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2574: $data =~ s/\\keephidden\{NEW TABLE ENTRY\}/$nested/;
2575:
2576: }
2577: # Should be be killing off the 'include' elements as they're used up?
1.305 foxr 2578:
1.206 sakharuk 2579: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
1.305 foxr 2580:
1.304 foxr 2581:
2582:
2583:
2584: # the colspan array will indicate how many columns will be spanned by this
2585: # cell..this requires that counter_columns also be adjusted accordingly
2586: # so that the next bunch of text goes in the right cell. Note that since
2587: # counter_columns is incremented in the start_td_tex, we adjust by colspan-1.
2588: #
2589:
2590: $Apache::londefdef::table[-1]{'counter_columns'} += $colspan -1;
2591: for (my $i = 0; $i < ($colspan -1); $i++) {
2592: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },'';
2593: }
1.320 foxr 2594: for (my $r = 0; $r < $rowspan; $r++) {
2595: $Apache::londefdef::table[-1]{'colspan'}[$current_row+$r][$current_column] = $colspan;
2596: # Put empty text in spanned cols.
2597:
2598: }
2599:
1.304 foxr 2600:
2601:
1.301 foxr 2602: return '';
1.159 sakharuk 2603: }
2604:
1.122 albertel 2605: sub end_td {
1.126 sakharuk 2606: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 2607: my $currentstring = '';
2608: if ($target eq 'web') {
2609: $currentstring = $token->[2];
2610: } elsif ($target eq 'tex') {
1.160 sakharuk 2611: $Apache::londefdef::TD_redirection =0;
1.159 sakharuk 2612: &end_td_tex($parstack,$parser,$safeeval);
1.122 albertel 2613: }
2614: return $currentstring;
2615: }
2616:
1.166 sakharuk 2617: #-- <th> tag (end tag optional)
1.122 albertel 2618: sub start_th {
2619: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2620: my $currentstring = '';
2621: if ($target eq 'web') {
2622: $currentstring = $token->[4];
2623: } elsif ($target eq 'tex') {
1.230 sakharuk 2624: $Apache::londefdef::TD_redirection = 1;
2625: &tagg_check('tr','th',$tagstack,$parstack,$parser,$safeeval);
1.122 albertel 2626: }
2627: return $currentstring;
1.130 sakharuk 2628: }
1.230 sakharuk 2629:
2630: sub tagg_check {
2631: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
2632: my @ar=@$parstack;
2633: for (my $i=$#ar-1;$i>=0;$i--) {
2634: if (lc($$tagstack[$i]) eq $good_tag) {
2635: &start_th_tex($parstack,$parser,$safeeval);
2636: last;
2637: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2638: splice @ar, $i+1;
2639: &end_th_tex(\@ar,$parser,$safeeval);
2640: &start_th_tex($parstack,$parser,$safeeval);
2641: last;
2642: }
2643: }
2644: return '';
2645: }
2646:
2647: sub start_th_tex {
2648: my ($parstack,$parser,$safeeval) = @_;
2649: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2650: if ($alignchar eq '') {
2651: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
2652: }
2653: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
2654: $Apache::londefdef::table[-1]{'counter_columns'}++;
2655: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2656: if (defined $TeXwidth) {
2657: my $current_length=&recalc($TeXwidth);
2658: $current_length=~/(\d+\.?\d*)/;
2659: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2660: }
2661: &Apache::lonxml::startredirection();
2662: return '';
2663: }
2664:
2665: sub end_th_tex {
2666: my ($parstack,$parser,$safeeval) = @_;
2667: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2668: my $data=&Apache::lonxml::endredirection();
2669: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2670: if (defined $TeXwidth) {
2671: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2672: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2673: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2674: } else {
2675: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2676: my $garbage_data=$data;
2677: my $fwidth=0;
2678: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2679: my $current_length=&recalc($1);
2680: $current_length=~/(\d+\.?\d*)/;
2681: if ($fwidth<$1) {$fwidth=$1;}
2682: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2683: }
2684: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2685: my $current_length=$1;
2686: if ($fwidth<$current_length) {$fwidth=$current_length;}
2687: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2688: }
2689: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2690: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2691: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2692: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2693: } else {
2694: $data=~s/^\s+(\S.*)/$1/;
2695: $data=~s/(.*\S)\s+$/$1/;
2696: $data=~s/(\s)+/$1/;
2697: my ($current_length,$min_length)=(0,0);
2698: if ($data=~/\\vskip/) {
2699: my $newdata=$data;
2700: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2701: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2702: foreach my $elementdata (@newdata) {
2703: my $lengthnewdata=2.5*&LATEX_length($elementdata);
2704: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
2705: my @words=split(/ /,$elementdata);
2706: foreach my $word (@words) {
2707: my $lengthword=2.5*&LATEX_length($word);
2708: if ($min_length<$lengthword) {$min_length=$lengthword;}
2709: }
2710: }
2711: } else {
2712: $current_length=2.5*&LATEX_length($data);
2713: my @words=split(/ /,$data);
2714: foreach my $word (@words) {
2715: my $lengthword=2*&LATEX_length($word);
2716: if ($min_length<$lengthword) {$min_length=$lengthword;}
2717: }
2718: }
2719: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2720: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2721: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2722: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
2723: }
2724: }
2725: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
2726: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2727: }
2728: #make data bold
2729: $data='\textbf{'.$data.'}';
2730: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
2731: return'';
2732: }
2733:
1.122 albertel 2734: sub end_th {
1.130 sakharuk 2735: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 2736: my $currentstring = &end_p(); # Close any open <p> in the row.
1.122 albertel 2737: if ($target eq 'web') {
1.277 foxr 2738: $currentstring .= $token->[2];
1.122 albertel 2739: } elsif ($target eq 'tex') {
1.230 sakharuk 2740: $Apache::londefdef::TD_redirection =0;
2741: &end_th_tex($parstack,$parser,$safeeval);
1.122 albertel 2742: }
2743: return $currentstring;
2744: }
1.230 sakharuk 2745:
1.181 sakharuk 2746: #-- <img> tag (end tag forbidden)
1.249 foxr 2747: #
2748: # Render the <IMG> tag.
2749: # <IMG> has the following attributes (in addition to the
2750: # standard HTML ones:
2751: # TeXwrap - Governs how the tex target will try to wrap text around
2752: # horizontally aligned images.
2753: # TeXwidth - The width of the image when rendered for print (mm).
2754: # TeXheight - The height of the image when rendered for print (mm)
2755: # (Note there seems to also be support for this as a % of page size)
2756: #
1.122 albertel 2757: sub start_img {
1.299 albertel 2758: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 2759: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,
2760: undef,1);
1.189 albertel 2761: if (not $src and ($target eq 'web' or $target eq 'tex')) {
1.299 albertel 2762: my $inside = &Apache::lonxml::get_all_text("/img",$parser,$style);
1.189 albertel 2763: return '';
2764: }
1.290 albertel 2765: &Apache::lonxml::extlink($src);
1.122 albertel 2766: my $currentstring = '';
2767: my $scaling = .3;
1.249 foxr 2768:
2769: # Render unto browsers that which are the browser's...
2770:
1.122 albertel 2771: if ($target eq 'web') {
1.267 albertel 2772: if ($env{'browser.imagesuppress'} ne 'on') {
1.322 ! albertel 2773: my $enc = ('yes' eq
! 2774: lc(&Apache::lonxml::get_param('encrypturl',$parstack,
! 2775: $safeeval)));
! 2776: $currentstring.=&Apache::lonenc::encrypt_ref($token,{'src'=>$src},
! 2777: $enc);
1.122 albertel 2778: } else {
1.322 ! albertel 2779: my $alttag = &Apache::lonxml::get_param('alt',$parstack,$safeeval,
! 2780: undef,1);
! 2781: if (!$alttag) {
! 2782: $alttag = &Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
! 2783: $src);
1.51 sakharuk 2784: }
1.158 sakharuk 2785: $currentstring.='[IMAGE: '.$alttag.']';
1.1 sakharuk 2786: }
1.249 foxr 2787:
2788: # and render unto TeX that which is LaTeX
2789:
1.122 albertel 2790: } elsif ($target eq 'tex') {
1.248 foxr 2791: #
2792: # The alignment will require some superstructure to be put around
2793: # the \includegraphics stuff. At present we can only partially
2794: # simulate the alignments offered by html.
2795: #
2796: #
2797: my $align = lc(&Apache::lonxml::get_param('align',
2798: $parstack,
2799: $safeeval,
2800: undef,1));
2801: if(!$align) {
1.287 foxr 2802: $align = "bottom"; # This is html's default so it's ours too.
1.248 foxr 2803: }
2804: #
2805: &Apache::lonxml::debug("Alignemnt = $align");
2806: # LaTeX's image/text wrapping is really bad since it wants to
2807: # make figures float.
2808: # The user has the optional parameter (applicable only to l/r
2809: # alignment to use the picins/parpic directive to get wrapped text
2810: # this is also imperfect.. that's why we give them a choice...
2811: # so they can't yell at us for our choice.
2812: #
2813: my $latex_rendering = &Apache::lonxml::get_param('TeXwrap',
2814: $parstack,
2815: $safeeval,
2816: undef,0);
1.312 foxr 2817: # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering");
1.248 foxr 2818: if(!$latex_rendering) {
1.312 foxr 2819: $latex_rendering = "texwrap";
2820: }
2821: # using texwrap inside a table does not work. So, if after all of this,
2822: # texwrap is on, we turn it off if we detect we're in a table:
2823: #
2824: if (($latex_rendering eq 'texwrap') && &is_inside_of($tagstack, "table")) {
2825: $latex_rendering = 'parpic';
1.248 foxr 2826: }
1.312 foxr 2827: # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering image file: $src");
1.248 foxr 2828:
1.256 albertel 2829: #if original gif/jpg/png file exist do following:
1.266 albertel 2830: my $origsrc=$src;
1.256 albertel 2831: my ($path,$file) = &get_eps_image($src);
1.122 albertel 2832: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.261 foxr 2833: &Apache::lonxml::debug("path = $path file = $file src = $src");
1.192 sakharuk 2834: if (-e $src) {
1.261 foxr 2835: &Apache::lonxml::debug("$src exists");
1.256 albertel 2836: my ($height_param,$width_param)=
1.266 albertel 2837: &image_size($origsrc,0.3,$parstack,$safeeval);
1.262 foxr 2838: my $destpath = $path;
1.263 foxr 2839: $destpath =~ s/ /\_/g; # Spaces in path cause LaTex to vomit.
2840: my $destfile = $file;
2841: $destfile =~ s/ /\_/g;
1.266 albertel 2842: my $size;
2843: if ($width_param) { $size.='width='.$width_param.' mm,'; }
2844: if ($height_param) { $size.='height='.$height_param.' mm]'; }
2845: $size='['.$size;
2846: $size=~s/,$/]/;
1.262 foxr 2847: $currentstring .= '\graphicspath{{'.$destpath.'}}'
1.266 albertel 2848: .'\includegraphics'.$size.'{'.$destfile.'} ';
1.256 albertel 2849:
1.248 foxr 2850: # If there's an alignment specification we need to honor it here.
2851: # For the horizontal alignments, we will also honor the
2852: # value of the latex specfication. The default is parbox,
2853: # and that's used for illegal values too.
2854: #
2855: # Even though we set a default alignment value, the user
2856: # could have given us an illegal value. In that case we
2857: # just use the default alignment of bottom..
2858: if ($align eq "top") {
2859: $currentstring = '\raisebox{-'.$height_param.'mm}{'.$currentstring.'}';
2860: } elsif (($align eq "center") || ($align eq "middle")) { # Being kind
2861: my $offset = $height_param/2;
2862: $currentstring = '\raisebox{-'.$offset.'mm}{'.$currentstring.'}';
2863: } elsif ($align eq "left") {
2864: if ($latex_rendering eq "parpic") {
2865: $currentstring = '\parpic[l]{'.$currentstring.'}';
1.286 foxr 2866: } else { # wrapfig render
2867: $currentstring = '\begin{wrapfigure}{l}{'.$width_param.'mm}'
2868: .'\scalebox{1.0}{'.$currentstring.'}\end{wrapfigure}';
1.248 foxr 2869: }
2870: } elsif ($align eq "right") {
2871: if ($latex_rendering eq "parpic") {
2872: $currentstring = '\parpic[r]{'.$currentstring.'}';
1.286 foxr 2873: } else { # wrapfig rendering
2874: $currentstring = '\begin{wrapfigure}{r}{'.$width_param.'mm}'
2875: .'\scalebox{1.0}{'.$currentstring.'}\end{wrapfigure}';
2876:
1.248 foxr 2877: }
2878: } else { # Bottom is also default.
2879: # $currentstring = '\raisebox{'.$height_param.'mm}{'.$currentstring.'}';
2880: }
1.122 albertel 2881: } else {
1.261 foxr 2882: &Apache::lonxml::debug("$src does not exist");
1.122 albertel 2883: #original image file doesn't exist so check the alt attribute
2884: my $alt =
2885: &Apache::lonxml::get_param('alt',$parstack,$safeeval,undef,1);
2886: unless ($alt) {
2887: $alt=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
2888: }
2889:
1.256 albertel 2890: if ($alt) { $currentstring .= ' '.$alt.' '; }
1.59 sakharuk 2891: }
1.249 foxr 2892:
2893: # And here's where the semi-quote breaks down: allow the user
2894: # to edit the beast as well by rendering the problem for edit:
1.186 albertel 2895: } elsif ($target eq 'edit') {
2896: $currentstring .=&Apache::edit::tag_start($target,$token);
2897: $currentstring .=&Apache::edit::text_arg('Image Url:','src',$token,70).
2898: &Apache::edit::browse('src',undef,'alt').' '.
2899: &Apache::edit::search('src',undef,'alt').'<br />';
2900: $currentstring .=&Apache::edit::text_arg('Description:','alt',$token,70).'<br />';
2901: $currentstring .=&Apache::edit::text_arg('width (pixel):','width',$token,5);
2902: $currentstring .=&Apache::edit::text_arg('height (pixel):','height',$token,5).'<br />';
2903: $currentstring .=&Apache::edit::text_arg('TeXwidth (mm):','TeXwidth',$token,5);
2904: $currentstring .=&Apache::edit::text_arg('TeXheight (mm):','TeXheight',$token,5);
1.234 albertel 2905: $currentstring .=&Apache::edit::select_arg('Alignment:','align',
2906: ['','bottom','middle','top','left','right'],$token,5);
1.249 foxr 2907: $currentstring .=&Apache::edit::select_arg('TeXwrap:', 'TeXwrap',
2908: ['', 'parbox', 'parpic'], $token, 2);
1.322 ! albertel 2909: $currentstring .=&Apache::edit::select_arg('Encyrpt URL:','encrypturl',
! 2910: ['no','yes'], $token, 2);
1.186 albertel 2911: $currentstring .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1.249 foxr 2912: my $src= &Apache::lonxml::get_param('src',$parstack,$safeeval);
2913: my $alt= &Apache::lonxml::get_param('alt',$parstack,$safeeval);
2914: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
2915: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
2916:
2917:
1.186 albertel 2918: $currentstring .= '<img src="'.$src.'" alt="'.$alt.'" ';
2919: if ($width) { $currentstring.=' width="'.$width.'" '; }
2920: if ($height) { $currentstring.=' height="'.$height.'" '; }
2921: $currentstring .= ' />';
2922: } elsif ($target eq 'modified') {
1.210 albertel 2923: my ($osrc,$owidth,$oheight)=
2924: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2925: my $ctag=&Apache::edit::get_new_args($token,$parstack,
1.234 albertel 2926: $safeeval,'src','alt','align',
1.249 foxr 2927: 'TeXwidth','TeXheight', 'TeXwrap',
1.322 ! albertel 2928: 'width','height','encrypturl');
1.210 albertel 2929: my ($nsrc,$nwidth,$nheight)=
2930: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2931: my $loc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$nsrc);
2932: &image_replication($loc);
2933: my ($iwidth,$iheight);
2934: if (-e $loc) {
2935: my $image = Image::Magick->new;
2936: $image->Read($loc);
2937: ($iwidth, $iheight) = ($image->Get('width'),
2938: $image->Get('height'));
2939: }
2940: if ($osrc ne $nsrc || (!$nwidth && !$nheight)) {
2941: # changed image or no size specified,
2942: # if they didn't explicitly change the
2943: # width or height use the ones from the image
2944: if ($iwidth && $iheight) {
2945: if ($owidth == $nwidth || (!$nwidth && !$nheight)) {
2946: $token->[2]{'width'} = $iwidth;$ctag=1;
2947: }
2948: if ($oheight == $nheight || (!$nwidth && !$nheight)) {
2949: $token->[2]{'height'}=$iheight;$ctag=1;
1.186 albertel 2950: }
2951: }
2952: }
1.210 albertel 2953: my ($cwidth,$cheight)=($token->[2]{'width'},$token->[2]{'height'});
2954: # if we don't have a width or height
2955: if ($iwidth && $cwidth && !$cheight) {
2956: $token->[2]{'height'}=int(($cwidth/$iwidth)*$iheight);$ctag=1;
2957: }
2958: if ($iheight && $cheight && !$cwidth) {
2959: $token->[2]{'width'}=int(($cheight/$iheight)*$iwidth);$ctag=1;
2960: }
2961: if ($ctag) {$currentstring=&Apache::edit::rebuild_tag($token);}
1.122 albertel 2962: }
1.261 foxr 2963:
1.122 albertel 2964: return $currentstring;
2965: }
2966:
2967: sub end_img {
2968: my ($target,$token) = @_;
2969: my $currentstring = '';
2970: if ($target eq 'web') {
2971: $currentstring = $token->[2];
2972: } elsif ($target eq 'tex') {
2973: $currentstring = '';
2974: }
2975: return $currentstring;
2976: }
2977:
1.181 sakharuk 2978: #-- <applet> tag (end tag required)
1.122 albertel 2979: sub start_applet {
2980: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2981:
2982: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,undef,1);
1.290 albertel 2983: &Apache::lonxml::extlink($code);
1.122 albertel 2984: my $archive=&Apache::lonxml::get_param('archive',$parstack,$safeeval,
2985: undef,1);
1.290 albertel 2986: &Apache::lonxml::extlink($archive);
1.122 albertel 2987: my $currentstring = '';
2988: if ($target eq 'web') {
1.267 albertel 2989: if ($env{'browser.appletsuppress'} ne 'on') {
1.250 albertel 2990: $currentstring = &Apache::lonenc::encrypt_ref($token,
2991: {'code'=>$code,
2992: 'archive'=>$archive}
2993: );
1.122 albertel 2994: } else {
2995: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
2996: $safeeval,undef,1);
2997: unless ($alttag) {
2998: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2999: $code);
1.44 sakharuk 3000: }
1.122 albertel 3001: $currentstring='[APPLET: '.$alttag.']';
1.1 sakharuk 3002: }
1.122 albertel 3003: } elsif ($target eq 'tex') {
1.177 albertel 3004: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
3005: $safeeval,undef,1);
3006: unless ($alttag) {
3007: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,
3008: undef,1);
3009: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
3010: $code);
1.175 sakharuk 3011: }
1.177 albertel 3012: $currentstring.='\begin{center} \fbox{Java Applet: '.$alttag.
3013: '.}\end{center}';
1.122 albertel 3014: }
3015: return $currentstring;
3016: }
3017:
3018: sub end_applet {
3019: my ($target,$token) = @_;
3020: my $currentstring = '';
3021: if ($target eq 'web') {
3022: $currentstring = $token->[2];
3023: } elsif ($target eq 'tex') {
3024: }
3025: return $currentstring;
3026: }
3027:
1.181 sakharuk 3028: #-- <embed> tag (end tag optional/required)
1.122 albertel 3029: sub start_embed {
3030: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3031: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
1.290 albertel 3032: &Apache::lonxml::extlink($src);
1.122 albertel 3033: my $currentstring = '';
3034: if ($target eq 'web') {
1.267 albertel 3035: if ($env{'browser.embedsuppress'} ne 'on') {
1.250 albertel 3036: $currentstring=&Apache::lonenc::encrypt_ref($token,{'src'=>$src});
1.122 albertel 3037: } else {
3038: my $alttag=&Apache::lonxml::get_param
3039: ('alt',$parstack,$safeeval,undef,1);
3040: unless ($alttag) {
3041: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
1.42 albertel 3042: }
1.122 albertel 3043: $currentstring='[EMBED: '.$alttag.']';
1.10 www 3044: }
1.122 albertel 3045: } elsif ($target eq 'tex') {
3046: }
3047: return $currentstring;
3048: }
3049:
3050: sub end_embed {
3051: my ($target,$token) = @_;
3052: my $currentstring = '';
3053: if ($target eq 'web') {
3054: $currentstring = $token->[2];
1.175 sakharuk 3055: } elsif ($target eq 'tex') {
1.122 albertel 3056: }
3057: return $currentstring;
3058: }
3059:
1.181 sakharuk 3060: #-- <param> tag (end tag forbidden)
1.122 albertel 3061: sub start_param {
3062: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.290 albertel 3063: if (&Apache::lonxml::get_param('name',$parstack,
3064: $safeeval,undef,1)=~/^cabbase$/i) {
3065: my $value=&Apache::lonxml::get_param('value',$parstack,
3066: $safeeval,undef,1);
3067: &Apache::lonxml::extlink($value);
3068: }
3069:
3070: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
3071: &Apache::lonxml::extlink($src);
1.122 albertel 3072: my $currentstring = '';
3073: if ($target eq 'web') {
1.250 albertel 3074: my %toconvert;
3075: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
3076: if ($src) { $toconvert{'src'}= $src; }
3077: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval,
3078: undef,1);
1.251 albertel 3079: if ($name=~/^cabbase$/i) {
3080: $toconvert{'value'}=&Apache::lonxml::get_param('value',$parstack,
3081: $safeeval,undef,1);
3082: }
1.250 albertel 3083: $currentstring = &Apache::lonenc::encrypt_ref($token,\%toconvert);
1.122 albertel 3084: } elsif ($target eq 'tex') {
3085: }
3086: return $currentstring;
3087: }
3088:
3089: sub end_param {
3090: my ($target,$token) = @_;
3091: my $currentstring = '';
3092: if ($target eq 'web') {
3093: $currentstring = $token->[2];
3094: } elsif ($target eq 'tex') {
3095: }
3096: return $currentstring;
3097: }
3098:
3099: #-- <allow> tag
3100: sub start_allow {
3101: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3102: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
1.290 albertel 3103: &Apache::lonxml::extlink($src);
3104:
1.241 albertel 3105: if ($target eq 'tex') { &image_replication($src); }
1.122 albertel 3106: my $result;
3107: if ($target eq 'edit') {
3108: $result .=&Apache::edit::tag_start($target,$token);
3109: $result .=&Apache::edit::text_arg('File Spec:','src',$token,70);
3110: $result .=&Apache::edit::end_row();#.&Apache::edit::start_spanning_row();
3111: } elsif ($target eq 'modified') {
3112: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
3113: $safeeval,'src');
3114: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
3115: }
3116: return $result;
3117: }
3118:
3119: sub end_allow {
3120: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3121: if ( $target eq 'edit') { return (&Apache::edit::end_table()); }
3122: return '';
3123: }
1.119 www 3124:
1.181 sakharuk 3125: #-- Frames (end tag required)
3126: #-- <frameset>
1.122 albertel 3127: sub start_frameset {
3128: my ($target,$token) = @_;
1.277 foxr 3129: my $currentstring = ''; # Close any pending para.
1.122 albertel 3130: if ($target eq 'web') {
1.180 albertel 3131: if (!$Apache::lonxml::registered &&
1.267 albertel 3132: $env{'request.state'} eq 'published') {
1.122 albertel 3133: $currentstring.='<head>'.
3134: &Apache::lonmenu::registerurl(undef,$target).'</head>';
1.10 www 3135: }
1.133 www 3136: my $onLoad='';
3137: foreach my $key (keys(%{$token->[2]})) {
3138: if ($key =~ /^onload$/i) {
3139: $onLoad.=$token->[2]->{$key}.';';
3140: delete($token->[2]->{$key});
3141: }
3142: }
3143: $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad;
3144: my $onUnload='';
3145: foreach my $key (keys(%{$token->[2]})) {
3146: if ($key =~ /^onunload$/i) {
3147: $onUnload.=$token->[2]->{$key}.';';
3148: delete($token->[2]->{$key});
3149: }
3150: }
3151: $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().
3152: ';'.$onUnload;
3153:
3154: $currentstring .= '<'.$token->[1];
3155: foreach (keys %{$token->[2]}) {
3156: $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
3157: }
3158: $currentstring.='>';
1.122 albertel 3159: }
3160: return $currentstring;
3161: }
3162:
3163: sub end_frameset {
3164: my ($target,$token) = @_;
3165: my $currentstring = '';
3166: if ($target eq 'web') {
3167: $currentstring = $token->[2];
3168: }
3169: return $currentstring;
3170: }
1.162 sakharuk 3171:
1.181 sakharuk 3172: #-- <xmp> (end tag required)
1.162 sakharuk 3173: sub start_xmp {
3174: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3175: my $currentstring = '';
3176: if ($target eq 'web') {
3177: $currentstring .= $token->[4];
3178: } elsif ($target eq 'tex') {
3179: $currentstring .= '\begin{verbatim}';
3180: }
3181: return $currentstring;
3182: }
3183:
3184: sub end_xmp {
3185: my ($target,$token) = @_;
3186: my $currentstring = '';
3187: if ($target eq 'web') {
3188: $currentstring .= $token->[2];
3189: } elsif ($target eq 'tex') {
3190: $currentstring .= '\end{verbatim}';
3191: }
3192: return $currentstring;
3193: }
3194:
1.181 sakharuk 3195: #-- <pre> (end tag required)
1.122 albertel 3196: sub start_pre {
1.126 sakharuk 3197: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 3198: my $currentstring = &end_p(); # close off pending <p>
1.122 albertel 3199: if ($target eq 'web') {
3200: $currentstring .= $token->[4];
3201: } elsif ($target eq 'tex') {
1.136 sakharuk 3202: $currentstring .= '\begin{verbatim}';
1.319 albertel 3203: &Apache::lonxml::disable_LaTeX_substitutions();
1.122 albertel 3204: }
3205: return $currentstring;
3206: }
3207:
3208: sub end_pre {
3209: my ($target,$token) = @_;
3210: my $currentstring = '';
3211: if ($target eq 'web') {
3212: $currentstring .= $token->[2];
3213: } elsif ($target eq 'tex') {
1.136 sakharuk 3214: $currentstring .= '\end{verbatim}';
1.319 albertel 3215: &Apache::lonxml::enable_LaTeX_substitutions();
1.122 albertel 3216: }
3217: return $currentstring;
3218: }
3219:
3220: #-- <insert>
3221: sub start_insert {
3222: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3223: my $currentstring = '';
3224: if ($target eq 'web') {
3225: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
3226: $currentstring .= '<b>'.$display.'</b>';;
3227: }
3228: return $currentstring;
3229: }
3230:
3231: sub end_insert {
3232: my ($target,$token) = @_;
3233: my $currentstring = '';
3234: if ($target eq 'web') {
3235: $currentstring .= '';
3236: }
3237: return $currentstring;
3238: }
3239:
3240: #-- <externallink>
3241: sub start_externallink {
3242: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3243: my $currentstring = '';
3244: if ($target eq 'web') {
3245: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
3246: $currentstring .= '<b>'.$display.'</b>';;
3247: }
3248: return $currentstring;
3249: }
3250:
3251: sub end_externallink {
3252: my ($target,$token) = @_;
3253: my $currentstring = '';
3254: if ($target eq 'web') {
3255: $currentstring .= '';
3256: }
3257: return $currentstring;
3258: }
3259:
3260: #-- <blankspace heigth="">
3261: sub start_blankspace {
3262: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 3263: my $currentstring = &end_p(); # closes off any unclosed <p>
1.122 albertel 3264: if ($target eq 'tex') {
3265: my $howmuch = &Apache::lonxml::get_param('heigth',$parstack,$safeeval,undef,1);
3266: $currentstring .= '\vskip '.$howmuch.' ';
3267: }
3268: return $currentstring;
3269: }
3270:
3271: sub end_blankspace {
3272: my ($target,$token) = @_;
3273: my $currentstring = '';
3274: if ($target eq 'tex') {
3275: $currentstring .= '';
3276: }
3277: return $currentstring;
3278: }
3279:
1.181 sakharuk 3280: #-- <abbr> tag (end tag required)
1.122 albertel 3281: sub start_abbr {
3282: my ($target,$token) = @_;
3283: my $currentstring = '';
3284: if ($target eq 'web') {
3285: $currentstring = $token->[4];
3286: }
3287: return $currentstring;
3288: }
3289:
3290: sub end_abbr {
3291: my ($target,$token) = @_;
3292: my $currentstring = '';
3293: if ($target eq 'web') {
3294: $currentstring = $token->[2];
3295: }
3296: return $currentstring;
3297: }
3298:
1.181 sakharuk 3299: #-- <acronym> tag (end tag required)
1.122 albertel 3300: sub start_acronym {
3301: my ($target,$token) = @_;
3302: my $currentstring = '';
3303: if ($target eq 'web') {
3304: $currentstring = $token->[4];
3305: }
3306: return $currentstring;
3307: }
3308:
3309: sub end_acronym {
3310: my ($target,$token) = @_;
3311: my $currentstring = '';
3312: if ($target eq 'web') {
3313: $currentstring = $token->[2];
3314: }
3315: return $currentstring;
3316: }
3317:
1.181 sakharuk 3318: #-- <area> tag (end tag forbidden)
1.122 albertel 3319: sub start_area {
3320: my ($target,$token) = @_;
3321: my $currentstring = '';
3322: if ($target eq 'web') {
3323: $currentstring = $token->[4];
3324: }
3325: return $currentstring;
3326: }
3327:
3328: sub end_area {
3329: my ($target,$token) = @_;
3330: my $currentstring = '';
3331: if ($target eq 'web') {
3332: $currentstring = $token->[2];
3333: }
3334: return $currentstring;
3335: }
3336:
1.181 sakharuk 3337: #-- <base> tag (end tag forbidden)
1.122 albertel 3338: sub start_base {
3339: my ($target,$token) = @_;
3340: my $currentstring = '';
3341: if ($target eq 'web') {
3342: $currentstring = $token->[4];
1.161 sakharuk 3343: }
1.122 albertel 3344: return $currentstring;
3345: }
3346:
3347: sub end_base {
3348: my ($target,$token) = @_;
3349: my $currentstring = '';
3350: if ($target eq 'web') {
3351: $currentstring = $token->[2];
3352: }
3353: return $currentstring;
3354: }
3355:
1.181 sakharuk 3356: #-- <bdo> tag (end tag required)
1.122 albertel 3357: sub start_bdo {
3358: my ($target,$token) = @_;
3359: my $currentstring = '';
3360: if ($target eq 'web') {
3361: $currentstring = $token->[4];
3362: }
3363: return $currentstring;
3364: }
3365:
3366: sub end_bdo {
3367: my ($target,$token) = @_;
3368: my $currentstring = '';
3369: if ($target eq 'web') {
3370: $currentstring = $token->[2];
3371: }
3372: return $currentstring;
3373: }
3374:
1.181 sakharuk 3375: #-- <bgsound> tag (end tag optional)
1.122 albertel 3376: sub start_bgsound {
3377: my ($target,$token) = @_;
3378: my $currentstring = '';
3379: if ($target eq 'web') {
3380: $currentstring = $token->[4];
3381: }
3382: return $currentstring;
3383: }
3384:
3385: sub end_bgsound {
3386: my ($target,$token) = @_;
3387: my $currentstring = '';
3388: if ($target eq 'web') {
3389: $currentstring = $token->[2];
3390: }
3391: return $currentstring;
3392: }
3393:
1.181 sakharuk 3394: #-- <blink> tag (end tag required)
1.122 albertel 3395: sub start_blink {
3396: my ($target,$token) = @_;
3397: my $currentstring = '';
3398: if ($target eq 'web') {
3399: $currentstring = $token->[4];
3400: }
3401: return $currentstring;
3402: }
3403:
3404: sub end_blink {
3405: my ($target,$token) = @_;
3406: my $currentstring = '';
3407: if ($target eq 'web') {
3408: $currentstring = $token->[2];
3409: }
3410: return $currentstring;
3411: }
3412:
1.181 sakharuk 3413: #-- <blockquote> tag (end tag required)
1.122 albertel 3414: sub start_blockquote {
3415: my ($target,$token) = @_;
1.279 foxr 3416: my $currentstring = &end_p(); # Close any unclosed <p>
1.122 albertel 3417: if ($target eq 'web') {
1.277 foxr 3418: $currentstring .= $token->[4];
1.122 albertel 3419: }
3420: return $currentstring;
3421: }
3422:
3423: sub end_blockquote {
3424: my ($target,$token) = @_;
3425: my $currentstring = '';
3426: if ($target eq 'web') {
3427: $currentstring = $token->[2];
3428: }
3429: return $currentstring;
3430: }
3431:
1.181 sakharuk 3432: #-- <button> tag (end tag required)
1.122 albertel 3433: sub start_button {
3434: my ($target,$token) = @_;
3435: my $currentstring = '';
3436: if ($target eq 'web') {
3437: $currentstring = $token->[4];
3438: }
3439: return $currentstring;
3440: }
3441:
3442: sub end_button {
3443: my ($target,$token) = @_;
3444: my $currentstring = '';
3445: if ($target eq 'web') {
3446: $currentstring = $token->[2];
3447: }
3448: return $currentstring;
3449: }
3450:
1.181 sakharuk 3451: #-- <caption> tag (end tag required)
1.122 albertel 3452: sub start_caption {
3453: my ($target,$token) = @_;
3454: my $currentstring = '';
3455: if ($target eq 'web') {
3456: $currentstring = $token->[4];
3457: }
3458: return $currentstring;
3459: }
3460:
3461: sub end_caption {
3462: my ($target,$token) = @_;
3463: my $currentstring = '';
3464: if ($target eq 'web') {
3465: $currentstring = $token->[2];
3466: }
3467: return $currentstring;
3468: }
3469:
1.181 sakharuk 3470: #-- <col> tag (end tag forbdden)
1.122 albertel 3471: sub start_col {
3472: my ($target,$token) = @_;
3473: my $currentstring = '';
3474: if ($target eq 'web') {
3475: $currentstring = $token->[4];
3476: }
3477: return $currentstring;
3478: }
3479:
3480: sub end_col {
3481: my ($target,$token) = @_;
3482: my $currentstring = '';
3483: if ($target eq 'web') {
3484: $currentstring = $token->[2];
3485: }
3486: return $currentstring;
3487: }
3488:
1.181 sakharuk 3489: #-- <colgroup> tag (end tag optional)
1.122 albertel 3490: sub start_colgroup {
3491: my ($target,$token) = @_;
3492: my $currentstring = '';
3493: if ($target eq 'web') {
3494: $currentstring = $token->[4];
3495: }
3496: return $currentstring;
3497: }
3498:
3499: sub end_colgroup {
3500: my ($target,$token) = @_;
3501: my $currentstring = '';
3502: if ($target eq 'web') {
3503: $currentstring = $token->[2];
3504: }
3505: return $currentstring;
3506: }
3507:
1.181 sakharuk 3508: #-- <del> tag (end tag required)
1.122 albertel 3509: sub start_del {
3510: my ($target,$token) = @_;
3511: my $currentstring = '';
3512: if ($target eq 'web') {
3513: $currentstring = $token->[4];
3514: }
3515: return $currentstring;
3516: }
3517:
3518: sub end_del {
3519: my ($target,$token) = @_;
3520: my $currentstring = '';
3521: if ($target eq 'web') {
3522: $currentstring = $token->[2];
3523: }
3524: return $currentstring;
3525: }
3526:
1.181 sakharuk 3527: #-- <fieldset> tag (end tag required)
1.122 albertel 3528: sub start_fieldset {
3529: my ($target,$token) = @_;
3530: my $currentstring = '';
3531: if ($target eq 'web') {
3532: $currentstring = $token->[4];
3533: }
3534: return $currentstring;
3535: }
3536:
3537: sub end_fieldset {
3538: my ($target,$token) = @_;
3539: my $currentstring = '';
3540: if ($target eq 'web') {
3541: $currentstring = $token->[2];
3542: }
3543: return $currentstring;
3544: }
3545:
1.181 sakharuk 3546: #-- <frame> tag (end tag forbidden)
1.122 albertel 3547: sub start_frame {
3548: my ($target,$token) = @_;
3549: my $currentstring = '';
3550: if ($target eq 'web') {
3551: $currentstring = $token->[4];
3552: }
3553: return $currentstring;
3554: }
3555:
3556: sub end_frame {
3557: my ($target,$token) = @_;
3558: my $currentstring = '';
3559: if ($target eq 'web') {
3560: $currentstring = $token->[2];
3561: }
3562: return $currentstring;
3563: }
3564:
1.181 sakharuk 3565: #-- <iframe> tag (end tag required)
1.122 albertel 3566: sub start_iframe {
3567: my ($target,$token) = @_;
3568: my $currentstring = '';
3569: if ($target eq 'web') {
3570: $currentstring = $token->[4];
3571: }
3572: return $currentstring;
3573: }
3574:
3575: sub end_iframe {
3576: my ($target,$token) = @_;
3577: my $currentstring = '';
3578: if ($target eq 'web') {
3579: $currentstring = $token->[2];
3580: }
3581: return $currentstring;
3582: }
3583:
1.181 sakharuk 3584: #-- <ins> tag (end tag required)
1.122 albertel 3585: sub start_ins {
3586: my ($target,$token) = @_;
3587: my $currentstring = '';
3588: if ($target eq 'web') {
3589: $currentstring = $token->[4];
3590: }
3591: return $currentstring;
3592: }
3593:
3594: sub end_ins {
3595: my ($target,$token) = @_;
3596: my $currentstring = '';
3597: if ($target eq 'web') {
3598: $currentstring = $token->[2];
3599: }
3600: return $currentstring;
3601: }
3602:
1.181 sakharuk 3603: #-- <isindex> tag (end tag forbidden)
1.122 albertel 3604: sub start_isindex {
3605: my ($target,$token) = @_;
3606: my $currentstring = '';
3607: if ($target eq 'web') {
3608: $currentstring = $token->[4];
3609: }
3610: return $currentstring;
3611: }
3612:
3613: sub end_isindex {
3614: my ($target,$token) = @_;
3615: my $currentstring = '';
3616: if ($target eq 'web') {
3617: $currentstring = $token->[2];
3618: }
3619: return $currentstring;
3620: }
3621:
1.181 sakharuk 3622: #-- <keygen> tag (end tag forbidden)
1.122 albertel 3623: sub start_keygen {
3624: my ($target,$token) = @_;
3625: my $currentstring = '';
3626: if ($target eq 'web') {
3627: $currentstring = $token->[4];
3628: }
3629: return $currentstring;
3630: }
3631:
3632: sub end_keygen {
3633: my ($target,$token) = @_;
3634: my $currentstring = '';
3635: if ($target eq 'web') {
3636: $currentstring = $token->[2];
3637: }
3638: return $currentstring;
3639: }
3640:
3641: #-- <label> tag
3642: sub start_label {
3643: my ($target,$token) = @_;
3644: my $currentstring = '';
3645: if ($target eq 'web') {
3646: $currentstring = $token->[4];
3647: }
3648: return $currentstring;
3649: }
3650:
3651: sub end_label {
3652: my ($target,$token) = @_;
3653: my $currentstring = '';
3654: if ($target eq 'web') {
3655: $currentstring = $token->[2];
3656: }
3657: return $currentstring;
3658: }
3659:
1.181 sakharuk 3660: #-- <layer> tag (end tag required)
1.122 albertel 3661: sub start_layer {
3662: my ($target,$token) = @_;
3663: my $currentstring = '';
3664: if ($target eq 'web') {
3665: $currentstring = $token->[4];
3666: }
3667: return $currentstring;
3668: }
3669:
3670: sub end_layer {
3671: my ($target,$token) = @_;
3672: my $currentstring = '';
3673: if ($target eq 'web') {
3674: $currentstring = $token->[2];
3675: }
3676: return $currentstring;
3677: }
3678:
1.181 sakharuk 3679: #-- <legend> tag (end tag required)
1.122 albertel 3680: sub start_legend {
3681: my ($target,$token) = @_;
3682: my $currentstring = '';
3683: if ($target eq 'web') {
3684: $currentstring = $token->[4];
3685: }
3686: return $currentstring;
3687: }
3688:
3689: sub end_legend {
3690: my ($target,$token) = @_;
3691: my $currentstring = '';
3692: if ($target eq 'web') {
3693: $currentstring = $token->[2];
3694: }
3695: return $currentstring;
3696: }
3697:
1.181 sakharuk 3698: #-- <link> tag (end tag forbidden)
1.122 albertel 3699: sub start_link {
1.292 albertel 3700: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 3701: my $currentstring = '';
3702: if ($target eq 'web') {
1.291 albertel 3703: my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
3704: undef,1);
3705: &Apache::lonxml::extlink($href);
1.122 albertel 3706: $currentstring = $token->[4];
3707: }
3708: return $currentstring;
3709: }
3710:
3711: sub end_link {
3712: my ($target,$token) = @_;
3713: my $currentstring = '';
3714: if ($target eq 'web') {
3715: $currentstring = $token->[2];
3716: }
3717: return $currentstring;
3718: }
3719:
1.181 sakharuk 3720: #-- <marquee> tag (end tag optional)
1.122 albertel 3721: sub start_marquee {
3722: my ($target,$token) = @_;
3723: my $currentstring = '';
3724: if ($target eq 'web') {
3725: $currentstring = $token->[4];
3726: }
3727: return $currentstring;
3728: }
3729:
3730: sub end_marquee {
3731: my ($target,$token) = @_;
3732: my $currentstring = '';
3733: if ($target eq 'web') {
3734: $currentstring = $token->[2];
3735: }
3736: return $currentstring;
3737: }
3738:
1.179 sakharuk 3739: #-- <multicol> tag (end tag required)
3740: sub start_multicol {
1.122 albertel 3741: my ($target,$token) = @_;
1.279 foxr 3742: my $currentstring = &end_p(); # Close any pending <p>
1.122 albertel 3743: if ($target eq 'web') {
1.277 foxr 3744: $currentstring .= $token->[4];
1.122 albertel 3745: }
3746: return $currentstring;
3747: }
3748:
1.179 sakharuk 3749: sub end_multicol {
1.122 albertel 3750: my ($target,$token) = @_;
3751: my $currentstring = '';
3752: if ($target eq 'web') {
3753: $currentstring = $token->[2];
3754: }
3755: return $currentstring;
3756: }
3757:
1.179 sakharuk 3758: #-- <nobr> tag (end tag required)
1.122 albertel 3759: sub start_nobr {
3760: my ($target,$token) = @_;
3761: my $currentstring = '';
3762: if ($target eq 'web') {
3763: $currentstring = $token->[4];
1.179 sakharuk 3764: } elsif ($target eq 'tex') {
3765: $currentstring='\mbox{';
3766: }
1.122 albertel 3767: return $currentstring;
3768: }
3769:
3770: sub end_nobr {
3771: my ($target,$token) = @_;
3772: my $currentstring = '';
3773: if ($target eq 'web') {
3774: $currentstring = $token->[2];
1.179 sakharuk 3775: } elsif ($target eq 'tex') {
3776: $currentstring='}';
3777: }
1.122 albertel 3778: return $currentstring;
3779: }
3780:
1.179 sakharuk 3781: #-- <noembed> tag (end tag required)
1.122 albertel 3782: sub start_noembed {
3783: my ($target,$token) = @_;
3784: my $currentstring = '';
3785: if ($target eq 'web') {
3786: $currentstring = $token->[4];
3787: }
3788: return $currentstring;
3789: }
3790:
3791: sub end_noembed {
3792: my ($target,$token) = @_;
3793: my $currentstring = '';
3794: if ($target eq 'web') {
3795: $currentstring = $token->[2];
3796: }
3797: return $currentstring;
3798: }
3799:
1.179 sakharuk 3800: #-- <noframes> tag (end tag required)
1.122 albertel 3801: sub start_noframes {
3802: my ($target,$token) = @_;
3803: my $currentstring = '';
3804: if ($target eq 'web') {
3805: $currentstring = $token->[4];
3806: }
3807: return $currentstring;
3808: }
3809:
3810: sub end_noframes {
3811: my ($target,$token) = @_;
3812: my $currentstring = '';
3813: if ($target eq 'web') {
3814: $currentstring = $token->[2];
3815: }
3816: return $currentstring;
3817: }
3818:
1.179 sakharuk 3819: #-- <nolayer> tag (end tag required)
1.122 albertel 3820: sub start_nolayer {
3821: my ($target,$token) = @_;
3822: my $currentstring = '';
3823: if ($target eq 'web') {
3824: $currentstring = $token->[4];
3825: }
3826: return $currentstring;
3827: }
3828:
3829: sub end_nolayer {
3830: my ($target,$token) = @_;
3831: my $currentstring = '';
3832: if ($target eq 'web') {
3833: $currentstring = $token->[2];
3834: }
3835: return $currentstring;
3836: }
3837:
1.179 sakharuk 3838: #-- <noscript> tag (end tag required)
1.122 albertel 3839: sub start_noscript {
3840: my ($target,$token) = @_;
3841: my $currentstring = '';
3842: if ($target eq 'web') {
3843: $currentstring = $token->[4];
3844: }
3845: return $currentstring;
3846: }
3847:
3848: sub end_noscript {
3849: my ($target,$token) = @_;
3850: my $currentstring = '';
3851: if ($target eq 'web') {
3852: $currentstring = $token->[2];
3853: }
3854: return $currentstring;
3855: }
3856:
1.179 sakharuk 3857: #-- <object> tag (end tag required)
1.122 albertel 3858: sub start_object {
3859: my ($target,$token) = @_;
3860: my $currentstring = '';
3861: if ($target eq 'web') {
3862: $currentstring = $token->[4];
3863: }
3864: return $currentstring;
3865: }
3866:
3867: sub end_object {
3868: my ($target,$token) = @_;
3869: my $currentstring = '';
3870: if ($target eq 'web') {
3871: $currentstring = $token->[2];
3872: }
3873: return $currentstring;
3874: }
3875:
1.179 sakharuk 3876: #-- <optgroup> tag (end tag required)
1.122 albertel 3877: sub start_optgroup {
3878: my ($target,$token) = @_;
3879: my $currentstring = '';
3880: if ($target eq 'web') {
3881: $currentstring = $token->[4];
3882: }
3883: return $currentstring;
3884: }
3885:
3886: sub end_optgroup {
3887: my ($target,$token) = @_;
3888: my $currentstring = '';
3889: if ($target eq 'web') {
3890: $currentstring = $token->[2];
3891: }
3892: return $currentstring;
3893: }
3894:
1.179 sakharuk 3895: #-- <samp> tag (end tag required)
1.122 albertel 3896: sub start_samp {
3897: my ($target,$token) = @_;
3898: my $currentstring = '';
3899: if ($target eq 'web') {
3900: $currentstring = $token->[4];
1.179 sakharuk 3901: } elsif ($target eq 'tex') {
3902: $currentstring='\texttt{';
3903: }
1.122 albertel 3904: return $currentstring;
3905: }
3906:
3907: sub end_samp {
3908: my ($target,$token) = @_;
3909: my $currentstring = '';
3910: if ($target eq 'web') {
3911: $currentstring = $token->[2];
1.179 sakharuk 3912: } elsif ($target eq 'tex') {
3913: $currentstring='}';
3914: }
1.122 albertel 3915: return $currentstring;
3916: }
3917:
3918: #-- <server> tag
3919: sub start_server {
3920: my ($target,$token) = @_;
3921: my $currentstring = '';
3922: if ($target eq 'web') {
3923: $currentstring = $token->[4];
3924: }
3925: return $currentstring;
3926: }
3927:
3928: sub end_server {
3929: my ($target,$token) = @_;
3930: my $currentstring = '';
3931: if ($target eq 'web') {
3932: $currentstring = $token->[2];
3933: }
3934: return $currentstring;
3935: }
3936:
1.179 sakharuk 3937: #-- <spacer> tag (end tag forbidden)
1.122 albertel 3938: sub start_spacer {
3939: my ($target,$token) = @_;
1.279 foxr 3940: my $currentstring = &end_p(); # Close off any open <p> tag.
1.122 albertel 3941: if ($target eq 'web') {
1.277 foxr 3942: $currentstring .= $token->[4];
1.122 albertel 3943: }
3944: return $currentstring;
3945: }
3946:
3947: sub end_spacer {
3948: my ($target,$token) = @_;
3949: my $currentstring = '';
3950: if ($target eq 'web') {
3951: $currentstring = $token->[2];
3952: }
3953: return $currentstring;
3954: }
3955:
1.179 sakharuk 3956: #-- <span> tag (end tag required)
1.122 albertel 3957: sub start_span {
3958: my ($target,$token) = @_;
3959: my $currentstring = '';
3960: if ($target eq 'web') {
3961: $currentstring = $token->[4];
3962: }
3963: return $currentstring;
3964: }
3965:
3966: sub end_span {
3967: my ($target,$token) = @_;
3968: my $currentstring = '';
3969: if ($target eq 'web') {
3970: $currentstring = $token->[2];
3971: }
3972: return $currentstring;
3973: }
3974:
1.179 sakharuk 3975: #-- <tbody> tag (end tag optional)
1.122 albertel 3976: sub start_tbody {
3977: my ($target,$token) = @_;
3978: my $currentstring = '';
3979: if ($target eq 'web') {
3980: $currentstring = $token->[4];
3981: }
3982: return $currentstring;
3983: }
3984:
3985: sub end_tbody {
3986: my ($target,$token) = @_;
3987: my $currentstring = '';
3988: if ($target eq 'web') {
3989: $currentstring = $token->[2];
3990: }
3991: return $currentstring;
3992: }
3993:
1.166 sakharuk 3994: #-- <tfoot> tag (end tag optional)
1.122 albertel 3995: sub start_tfoot {
3996: my ($target,$token) = @_;
3997: my $currentstring = '';
3998: if ($target eq 'web') {
3999: $currentstring = $token->[4];
4000: }
4001: return $currentstring;
4002: }
4003:
4004: sub end_tfoot {
4005: my ($target,$token) = @_;
4006: my $currentstring = '';
4007: if ($target eq 'web') {
4008: $currentstring = $token->[2];
4009: }
4010: return $currentstring;
4011: }
4012:
1.166 sakharuk 4013: #-- <thead> tag (end tag optional)
1.122 albertel 4014: sub start_thead {
4015: my ($target,$token) = @_;
4016: my $currentstring = '';
4017: if ($target eq 'web') {
4018: $currentstring = $token->[4];
4019: }
4020: return $currentstring;
4021: }
1.10 www 4022:
1.122 albertel 4023: sub end_thead {
4024: my ($target,$token) = @_;
4025: my $currentstring = '';
4026: if ($target eq 'web') {
4027: $currentstring = $token->[2];
4028: }
4029: return $currentstring;
4030: }
1.119 www 4031:
1.122 albertel 4032: #-- <var> tag
4033: sub start_var {
1.44 sakharuk 4034: my ($target,$token) = @_;
4035: my $currentstring = '';
4036: if ($target eq 'web') {
1.122 albertel 4037: $currentstring = $token->[4];
1.163 sakharuk 4038: } elsif ($target eq 'tex') {
4039: $currentstring = '\textit{';
4040: }
1.44 sakharuk 4041: return $currentstring;
4042: }
1.10 www 4043:
1.122 albertel 4044: sub end_var {
4045: my ($target,$token) = @_;
1.44 sakharuk 4046: my $currentstring = '';
4047: if ($target eq 'web') {
1.163 sakharuk 4048: $currentstring = $token->[2];
4049: } elsif ($target eq 'tex') {
4050: $currentstring = '}';
1.44 sakharuk 4051: }
4052: return $currentstring;
4053: }
1.119 www 4054:
1.163 sakharuk 4055: #-- <wbr> tag (end tag forbidden)
1.122 albertel 4056: sub start_wbr {
4057: my ($target,$token) = @_;
4058: my $currentstring = '';
4059: if ($target eq 'web') {
4060: $currentstring = $token->[4];
4061: }
4062: return $currentstring;
1.98 albertel 4063: }
4064:
1.122 albertel 4065: sub end_wbr {
4066: my ($target,$token) = @_;
4067: my $currentstring = '';
4068: if ($target eq 'web') {
4069: $currentstring = $token->[2];
4070: }
4071: return $currentstring;
1.98 albertel 4072: }
1.134 sakharuk 4073:
4074: #-- <hideweboutput> tag
4075: sub start_hideweboutput {
4076: my ($target,$token) = @_;
4077: if ($target eq 'web') {
4078: &Apache::lonxml::startredirection();
4079: }
4080: return '';
4081: }
4082:
4083: sub end_hideweboutput {
4084: my ($target,$token) = @_;
4085: my $currentstring = '';
4086: if ($target eq 'web') {
4087: $currentstring = &Apache::lonxml::endredirection();
4088: }
4089: return '';
4090: }
4091:
1.94 sakharuk 4092:
4093: sub image_replication {
4094: my $src = shift;
1.187 albertel 4095: if (not -e $src) { &Apache::lonnet::repcopy($src); }
4096: #replicates eps or ps
4097: my $epssrc = my $pssrc = $src;
4098: $epssrc =~ s/\.(gif|jpg|jpeg|png)$/.eps/i;
4099: $pssrc =~ s/\.(gif|jpg|jpeg|png)$/.ps/i;
4100: if (not -e $epssrc && not -e $pssrc) {
4101: my $result=&Apache::lonnet::repcopy($epssrc);
1.264 raeburn 4102: if ($result ne 'ok') { &Apache::lonnet::repcopy($pssrc); }
1.94 sakharuk 4103: }
4104: return '';
1.195 sakharuk 4105: }
1.275 foxr 4106: #
4107: # Get correct sizing parameter for an image given
4108: # it's initial ht. and wid. This allows sizing of
4109: # images that are generated on-the-fly (e.g. gnuplot)
4110: # as well as serving as a utility for image_size.
4111: #
4112: # Parameter:
4113: # height_param
4114: # width_param - Initial picture dimensions.
4115: # scaling - A scale factor.
4116: # parstack, - the current stack of tag attributes
4117: # from the xml parser
4118: # safeeval, - pointer to the safespace
4119: # depth, - from what level in the stack to look for attributes
4120: # (assumes -1 if unspecified)
4121: # cis - look for attrubutes case insensitively
4122: # (assumes false)
4123: #
4124: # Returns:
4125: # height, width - new dimensions.
4126: #
4127: sub resize_image {
4128: my ($height_param, $width_param, $scaling,
4129: $parstack, $safeeval, $depth, $cis) = @_;
4130:
4131: # First apply the scaling...
1.271 foxr 4132:
1.275 foxr 4133: $height_param = $height_param * $scaling;
4134: $width_param = $width_param * $scaling;
1.261 foxr 4135:
1.197 sakharuk 4136: #do we have any specified LaTeX size of the picture?
1.261 foxr 4137: my $toget='TeXwidth';
4138: if ($cis) {
4139: $toget=lc($toget);
4140: }
1.256 albertel 4141: my $TeXwidth = &Apache::lonxml::get_param($toget,$parstack,
4142: $safeeval,$depth,$cis);
4143: $toget='TeXheight'; if ($cis) { $toget=lc($toget); }
4144: my $TeXheight = &Apache::lonxml::get_param($toget,$parstack,
4145: $safeeval,$depth,$cis);
1.197 sakharuk 4146: #do we have any specified web size of the picture?
4147: my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval,
1.256 albertel 4148: $depth,1);
4149: if ($TeXwidth) {
1.252 matthew 4150: my $old_width_param=$width_param;
1.197 sakharuk 4151: if ($TeXwidth=~/(\d+)\s*\%/) {
1.267 albertel 4152: $width_param = $1*$env{'form.textwidth'}/100;
1.197 sakharuk 4153: } else {
4154: $width_param = $TeXwidth;
4155: }
1.266 albertel 4156: if ($TeXheight) {
4157: $height_param = $TeXheight;
4158: } elsif ($old_width_param) {
4159: $height_param=$TeXwidth/$old_width_param*$height_param;
4160: }
1.256 albertel 4161: } elsif ($TeXheight) {
1.248 foxr 4162: $height_param = $TeXheight;
1.266 albertel 4163: if ($height_param) {
4164: $width_param = $TeXheight/$height_param*$width_param;
4165: }
1.256 albertel 4166: } elsif ($width) {
1.252 matthew 4167: my $old_width_param=$width_param;
1.256 albertel 4168: $width_param = $width*$scaling;
1.266 albertel 4169: if ($old_width_param) {
4170: $height_param=$width_param/$old_width_param*$height_param;
4171: }
1.252 matthew 4172: }
1.267 albertel 4173: if ($width_param > $env{'form.textwidth'}) {
1.252 matthew 4174: my $old_width_param=$width_param;
1.267 albertel 4175: $width_param =0.95*$env{'form.textwidth'};
1.266 albertel 4176: if ($old_width_param) {
4177: $height_param=$width_param/$old_width_param*$height_param;
4178: }
1.197 sakharuk 4179: }
1.275 foxr 4180:
4181: return ($height_param, $width_param);
4182: }
4183:
4184: sub image_size {
4185: my ($src,$scaling,$parstack,$safeeval,$depth,$cis)=@_;
4186:
4187: #size of image from gif/jpg/jpeg/png
4188: my $ressrc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
4189: if (-e $ressrc) {
4190: $src = $ressrc;
4191: }
4192: my $image = Image::Magick->new;
4193: my $current_figure = $image->Read($src);
4194: my $width_param = $image->Get('width');
4195: my $height_param = $image->Get('height');
4196: &Apache::lonxml::debug("Image magick says: $src : Height = $height_param width = $width_param");
4197: undef($image);
4198:
4199: ($height_param, $width_param) = &resize_image($height_param, $width_param,
4200: $scaling, $parstack, $safeeval,
4201: $depth, $cis);
4202:
1.248 foxr 4203: return ($height_param, $width_param);
4204: }
4205:
4206: sub image_width {
4207: my ($height, $width) = &image_size(@_);
4208: return $width;
4209: }
4210: # Not yet 100% sure this is correct in all circumstances..
4211: # due to my uncertainty about mods to image_size.
4212: #
4213: sub image_height {
4214: my ($height, $width) = &image_size(@_);
4215: return $height;
1.197 sakharuk 4216: }
4217:
1.256 albertel 4218: sub get_eps_image {
4219: my ($src)=@_;
1.261 foxr 4220: my $orig_src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1], $src);
1.285 foxr 4221:
4222: # In order to prevent the substitution of the alt text, we need to
4223: # be sure the orig_src file is on system now so:
4224:
4225: if (! -e $orig_src) {
4226: &Apache::lonnet::repcopy($orig_src); # Failure is not completely fatal.
4227: }
1.275 foxr 4228: &Apache::lonxml::debug("get_eps_image: Original image: $orig_src");
1.282 foxr 4229: my ($spath, $sname, $sext) = fileparse($src, qr/\.(gif|png|jpg|jpeg)/i);
1.256 albertel 4230: $src=~s/\.(gif|png|jpg|jpeg)$/\.eps/i;
4231: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.275 foxr 4232: &Apache::lonxml::debug("Filelocation gives: $src");
1.256 albertel 4233: if (! -e $src) {
1.261 foxr 4234: &Apache::lonxml::debug("$src does not exist");
1.264 raeburn 4235: if (&Apache::lonnet::repcopy($src) ne 'ok' ) {
1.261 foxr 4236: &Apache::lonxml::debug("Repcopy of $src failed (1)");
1.256 albertel 4237: #if replication failed try to find ps file
4238: $src=~s/\.eps$/\.ps/;
1.261 foxr 4239: &Apache::lonxml::debug("Now looking for $src");
1.270 foxr 4240: #if no ps file try to replicate it.
4241: my $didrepcopy = &Apache::lonnet::repcopy($src);
4242: &Apache::lonxml::debug("repcopy of $src ... $didrepcopy");
4243: if ( (not -e $src) ||
4244: ($didrepcopy ne 'ok')) {
1.261 foxr 4245: &Apache::lonxml::debug("Failed to find or replicate $src");
4246:
1.256 albertel 4247: #if replication failed try to produce eps file dynamically
4248: $src=~s/\.ps$/\.eps/;
4249: my $temp_file;
1.267 albertel 4250: open(FILE,">>/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat");
1.256 albertel 4251: my $newsrc=$orig_src;
4252: $newsrc =~ s|(.*)/res/|/home/httpd/html/res/|;
1.275 foxr 4253: &Apache::lonxml::debug("queueing $newsrc for dynamic eps production.");
1.256 albertel 4254: print FILE "$newsrc\n";
1.261 foxr 4255: close FILE;
1.256 albertel 4256: $src=~s|/home/httpd/html/res|/home/httpd/prtspool|;
4257: $src=~s|/home/([^/]*)/public_html/|/home/httpd/prtspool/$1/|;
1.283 albertel 4258: if ($sext ne "") { # Put the ext. back in to uniquify.
4259: $src =~ s/\.eps$/$sext.eps/;
4260: }
1.256 albertel 4261: }
4262: }
4263: }
4264: my ($path,$file)=($src=~m|(.*)/([^/]*)$|);
1.261 foxr 4265: &Apache::lonxml::debug("get_eps_image returning: $path / $file<BR />");
1.256 albertel 4266: return ($path.'/',$file);
4267: }
4268:
1.195 sakharuk 4269: sub eps_generation {
4270: my ($src,$file,$width_param) = @_;
1.267 albertel 4271: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat";
1.195 sakharuk 4272: my $temp_file = Apache::File->new('>>'.$filename);
4273: print $temp_file "$src\n";
4274: my $newsrc = $src;
4275: $newsrc =~ s/(\.gif|\.jpg|\.jpeg)$/\.eps/i;
4276: $newsrc=~s/\/home\/httpd\/html\/res//;
4277: $newsrc=~s/\/home\/([^\/]*)\/public_html\//\/$1\//;
4278: $newsrc=~s/\/\.\//\//;
4279: $newsrc=~s/\/([^\/]+)\.(ps|eps)/\//;
1.213 sakharuk 4280: if ($newsrc=~/\/home\/httpd\/lonUsers\//) {
4281: $newsrc=~s/\/home\/httpd\/lonUsers//;
4282: $newsrc=~s/\/([^\/]+)\/(\w)\/(\w)\/(\w)\//\/$1\//;
4283: }
1.239 sakharuk 4284: if ($newsrc=~/\/userfiles\//) {
4285: return ' \graphicspath{{'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4286: } else {
4287: return ' \graphicspath{{/home/httpd/prtspool'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4288: }
1.197 sakharuk 4289: }
4290:
4291: sub file_path {
4292: my $src=shift;
4293: my ($file,$path);
4294: if ($src =~ m!(.*)/([^/]*)$!) {
4295: $file = $2;
4296: $path = $1.'/';
4297: }
4298: return $file,$path;
1.126 sakharuk 4299: }
1.294 foxr 4300: # Converts a measurement in to mm from any of
4301: # the other valid LaTeX units of measure.
4302: # If the units of measure are missing from the
4303: # parameter, it is assumed to be in and returned
4304: # with mm units of measure
1.126 sakharuk 4305: sub recalc {
4306: my $argument = shift;
4307: if (not $argument=~/(mm|cm|in|pc|pt)/) {return $argument.' mm';}
1.132 sakharuk 4308: $argument=~/\s*(\d+\.?\d*)\s*(mm|cm|in|pc|pt)/;
1.126 sakharuk 4309: my $value=$1;
4310: my $units=$2;
4311: if ($units eq 'cm') {
4312: $value*=10;
4313: } elsif ($units eq 'in') {
4314: $value*=25.4;
4315: } elsif ($units eq 'pc') {
4316: $value*=(25.4*12/72.27);
4317: } elsif ($units eq 'pt') {
4318: $value*=(25.4/72.27);
4319: }
4320: return $value.' mm';
1.94 sakharuk 4321: }
1.184 sakharuk 4322:
4323: sub LATEX_length {
4324: my $garbage=shift;
1.206 sakharuk 4325: $garbage=~s/^\s+$//;
4326: $garbage=~s/^\s+(\S.*)/$1/;#space before
4327: $garbage=~s/(.*\S)\s+$/$1/;#space after
4328: $garbage=~s/(\s)+/$1/;#only one space
4329: $garbage=~s/(\\begin{([^\}]+)}|\\end{([^\}]+)})//g;#remove LaTeX \begin{...} and \end{...}
4330: $garbage=~s/(\$\_\{|\$\_|\$\^{|\$\^|\}\$)//g;#remove $_{,$_,$^{,$^,}$
4331: $garbage=~s/([^\\])\$/$1/g;#$
4332: $garbage=~s/(\\ensuremath\{\_\{|\\ensuremath\{\_|\\ensuremath\{\^{|\\ensuremath\{\^|\})//g;#remove \ensuremath{...}
4333: $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 4334: $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;
4335: $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;
4336: $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 4337: $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;
4338: $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;
4339: $garbage=~s/(\\hat{([^}]+)}|\\check{([^}]+)}|\\dot{([^}]+)}|\\breve{([^}]+)}|\\acute{([^}]+)}|\\ddot{([^}]+)}|\\grave{([^}]+)}|\\tilde{([^}]+)}|\\mathring{([^}]+)}|\\bar{([^}]+)}|\\vec{([^}]+)})/$1/g;
4340: #remove some other LaTeX command
4341: $garbage=~s|\\(\w+)\\|\\|g;
4342: $garbage=~s|\\(\w+)(\s*)|$2|g;
4343: $garbage=~s|\+|11|g;
1.184 sakharuk 4344: my $value=length($garbage);
4345: return $value;
4346: }
4347:
4348:
1.287 foxr 4349: # is_inside_of $tagstack $tag
4350: # This sub returns true if the current state of Xml processing
4351: # is inside of the tag.
4352: # Parameters:
4353: # tagstack - The tagstack from the parser.
4354: # tag - The tag (without the <>'s.).
4355: # Sample usage:
4356: # if (is_inside_of($tagstack "table")) {
4357: # # I'm in a table....
4358: # }
4359: sub is_inside_of {
4360: my ($tagstack, $tag) = @_;
4361: my @stack = @$tagstack;
4362: for (my $i = ($#stack - 1); $i >= 0; $i--) {
4363: if ($stack[$i] eq $tag) {
4364: return 1;
4365: }
4366: }
4367: return 0;
4368: }
1.184 sakharuk 4369:
1.94 sakharuk 4370:
1.1 sakharuk 4371: 1;
4372: __END__
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to londefdef.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / xml