Annotation of loncom/xml/londefdef.pm, revision 1.356
1.1 sakharuk 1: # The LearningOnline Network with CAPA
2: # Tags Default Definition Module
3: #
1.356 ! foxr 4: # $Id: londefdef.pm,v 1.355 2007/02/27 23:44:53 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;
1.345 albertel 51: use LONCAPA();
1.302 foxr 52: # use Data::Dumper;
1.160 sakharuk 53:
1.38 harris41 54: BEGIN {
1.15 sakharuk 55:
1.135 sakharuk 56: &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 57:
1.188 albertel 58: }
59:
1.294 foxr 60: #
61: # Dumps all elements of the table structure.
62: # Need this 'cause evidently when given an array, Data::Dumper only seems
63: # to dump element 0.
64: #
1.302 foxr 65: #sub debug_dump_table {
66: # my $lastrow = $#Apache::londefdef::table;
67: # &Apache::lonnet::logthis("Dumping table: Last row index: $lastrow");
68: # my $row;
69: # for ($row =0; $row <= $lastrow; $row++ ) {
70: # my $text = Dumper($Apache::londefdef::table[$row]);
71: # &Apache::lonnet::logthis("table [ $row ]".$text);
72: # }
73: #}
1.188 albertel 74: sub initialize_londefdef {
75: $Apache::londefdef::TD_redirection=0;
76: @Apache::londefdef::table = ();
77: $Apache::londefdef::select=0;
1.243 albertel 78: undef(@Apache::londefdef::description);
79: @Apache::londefdef::DD=(0);
80: @Apache::londefdef::DT=(0);
1.244 albertel 81: @Apache::londefdef::seenDT=(0);
1.238 albertel 82: $Apache::londefdef::list_index=0;
1.327 albertel 83: undef($Apache::londefdef::head);
84: undef($Apache::londefdef::title);
1.3 sakharuk 85: }
1.1 sakharuk 86:
1.35 sakharuk 87: #======================= TAG SUBROUTINES =====================
1.8 sakharuk 88: #-- <output>
1.21 albertel 89: sub start_output {
1.122 albertel 90: my ($target) = @_;
91: if ($target eq 'meta') { $Apache::lonxml::metamode--; }
92: return '';
1.21 albertel 93: }
94: sub end_output {
1.122 albertel 95: my ($target) = @_;
96: if ($target eq 'meta') { $Apache::lonxml::metamode++; }
97: return '';
1.21 albertel 98: }
1.4 sakharuk 99: #-- <m> tag
1.33 albertel 100: sub start_m {
1.190 albertel 101: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 102: my $currentstring = '';
1.193 albertel 103: my $inside = &Apache::lonxml::get_all_text_unbalanced("/m",$parser);
1.191 albertel 104: if ($target eq 'web' || $target eq 'analyze') {
1.122 albertel 105: &Apache::lonxml::debug("M is starting with:$inside:");
106: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
107: if ($eval eq 'on') {
108: $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
109: #&Apache::lonxml::debug("M is evaulated to:$inside:");
110: }
1.317 albertel 111: my $tex = $inside;
1.276 albertel 112: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
113: $currentstring = &Apache::lontexconvert::converted(\$inside,$display);
1.122 albertel 114: if ($Apache::lontexconvert::errorstring) {
1.317 albertel 115: my $errormsg='<pre>'.&HTML::Entities::encode($Apache::lontexconvert::errorstring,'<>&"').'</pre> occured while attempting to convert this TeX: <pre>';
116: $tex = &HTML::Entities::encode($tex,'<>&"');
117: my ($linenumber) =
118: ($Apache::lontexconvert::errorstring =~ /Line (\d+)/);
119: if (defined($linenumber)) {
120: my @tex=split("\n",$tex);
121: $tex[$linenumber]='<b><font color="red">'.
122: $tex[$linenumber].'</font></b>';
123: $tex=join("\n",@tex);
124: }
125: &Apache::lonxml::warning($errormsg.$tex.'</pre>');
1.122 albertel 126: $Apache::lontexconvert::errorstring='';
127: }
128: #&Apache::lonxml::debug("M is ends with:$currentstring:");
1.178 albertel 129: $Apache::lonxml::post_evaluate=0;
1.122 albertel 130: } elsif ($target eq 'tex') {
1.190 albertel 131: $currentstring = $inside;
1.178 albertel 132: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
133: if ($eval eq 'on') {
134: $currentstring=&Apache::run::evaluate($currentstring,$safeeval,$$parstack[-1]);
135: }
1.122 albertel 136: if ($currentstring=~/^(\s*\\\\\s*)*$/) {$currentstring = ' \vskip 0 mm ';}
1.257 albertel 137: # detect simple math mode entry exits, and convert them
138: # to use \ensuremath
139: if ($currentstring=~/^\s*\$[^\$].*[^\$]\$\s*$/) {
1.293 albertel 140: $currentstring=~s/^(\s*)\$/$1/;
141: $currentstring=~s/\$(\s*)$/$1/;
1.257 albertel 142: $currentstring='\ensuremath{'.$currentstring.'}';
143: }
1.178 albertel 144: $Apache::lonxml::post_evaluate=0;
1.122 albertel 145: }
146: return $currentstring;
1.33 albertel 147: }
1.122 albertel 148:
1.33 albertel 149: sub end_m {
1.122 albertel 150: my ($target,$token) = @_;
151: my $currentstring = '';
1.204 albertel 152: if ($target eq 'tex') {
1.122 albertel 153: $currentstring = "";
154: }
155: return $currentstring;
1.33 albertel 156: }
1.110 albertel 157:
158: sub start_tthoption {
1.299 albertel 159: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 160: my $result;
1.325 albertel 161: if ($target eq 'web' || $target eq 'webgrade') {
1.299 albertel 162: my $inside = &Apache::lonxml::get_all_text("/tthoption",$parser,
163: $style);
1.122 albertel 164: $inside=~s/^\s*//;
1.267 albertel 165: if ($env{'browser.mathml'}) {
1.122 albertel 166: &tth::ttmoptions($inside);
167: } else {
168: &tth::tthoptions($inside);
169: }
170: }
171: return $result;
1.110 albertel 172: }
173:
174: sub end_tthoption {
1.122 albertel 175: my ($target,$token) = @_;
176: my $result;
177: return $result;
1.110 albertel 178: }
179:
1.181 sakharuk 180: #-- <html> tag (end tag optional)
1.100 albertel 181: sub start_html {
182: my ($target,$token) = @_;
183: my $currentstring = '';
1.269 albertel 184: if ($target eq 'web' || $target eq 'edit' || $target eq 'webgrade' ) {
1.327 albertel 185: # start_body() takes care of emitting the <html>
1.100 albertel 186: } elsif ($target eq 'tex') {
1.331 albertel 187: $currentstring .=
188: '\documentclass[letterpaper,twoside]{article}\raggedbottom';
1.267 albertel 189: if (($env{'form.latex_type'}=~'batchmode') ||
190: (!$env{'request.role.adv'})) {$currentstring .='\batchmode';}
1.217 sakharuk 191: $currentstring .= '\newcommand{\keephidden}[1]{}'.
192: '\renewcommand{\deg}{$^{\circ}$}'.
1.306 foxr 193: '\usepackage{multirow}'.
1.217 sakharuk 194: '\usepackage{longtable}'.
195: '\usepackage{textcomp}'.
196: '\usepackage{makeidx}'.
197: '\usepackage[dvips]{graphicx}'.
1.286 foxr 198: '\usepackage{wrapfig}'.
1.248 foxr 199: '\usepackage{picins}'.
1.217 sakharuk 200: '\usepackage{epsfig}'.
201: '\usepackage{calc}'.
202: '\usepackage{amsmath}'.
203: '\usepackage{amssymb}'.
204: '\usepackage{amsfonts}'.
205: '\usepackage{amsthm}'.
206: '\usepackage{amscd}'.
207: '\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}}'.
208: '\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 209: }
210: return $currentstring;
211: }
1.122 albertel 212:
213: sub end_html {
1.232 sakharuk 214: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 215: my $currentstring = '';
1.324 albertel 216: if ($target eq 'web' || $target eq 'webgrade') {
1.327 albertel 217: # end_body takes care of the </html>
1.122 albertel 218: }
219: return $currentstring;
220: }
221:
1.181 sakharuk 222: #-- <head> tag (end tag optional)
1.122 albertel 223: sub start_head {
224: my ($target,$token) = @_;
225: my $currentstring = '';
1.324 albertel 226: if ($target eq 'web' || $target eq 'webgrade') {
1.327 albertel 227: &Apache::lonxml::startredirection();
1.122 albertel 228: }
229: return $currentstring;
230: }
231:
232: sub end_head {
233: my ($target,$token) = @_;
234: my $currentstring = '';
1.324 albertel 235: if (($target eq 'web' && $env{'request.state'} eq 'published') ||
236: ($target eq 'webgrade' && $env{'request.state'} eq 'published')) {
1.327 albertel 237: # in case there is a </head> but no <head>
238: if ($Apache::lonxml::redirection) {
239: $Apache::londefdef::head = &Apache::lonxml::endredirection();
240: }
1.122 albertel 241: }
242: return $currentstring;
243: }
244:
1.181 sakharuk 245: #-- <map> tag (end tag required)
1.122 albertel 246: sub start_map {
247: my ($target,$token) = @_;
248: my $currentstring = '';
1.325 albertel 249: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 250: $currentstring = $token->[4];
251: }
252: return $currentstring;
253: }
254:
255: sub end_map {
256: my ($target,$token) = @_;
257: my $currentstring = '';
1.325 albertel 258: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 259: $currentstring = $token->[2];
260: }
261: return $currentstring;
262: }
263:
1.181 sakharuk 264: #-- <select> tag (end tag required)
1.122 albertel 265: sub start_select {
266: my ($target,$token) = @_;
267: my $currentstring = '';
1.325 albertel 268: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 269: $currentstring = $token->[4];
1.181 sakharuk 270: } elsif ($target eq 'tex') {
271: $Apache::londefdef::select=0;
272: }
1.122 albertel 273: return $currentstring;
274: }
275:
276: sub end_select {
277: my ($target,$token) = @_;
278: my $currentstring = '';
1.325 albertel 279: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 280: $currentstring = $token->[2];
281: }
282: return $currentstring;
283: }
284:
1.181 sakharuk 285: #-- <option> tag (end tag optional)
1.122 albertel 286: sub start_option {
1.181 sakharuk 287: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 288: my $currentstring = '';
1.325 albertel 289: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 290: $currentstring = $token->[4];
1.181 sakharuk 291: } elsif ($target eq 'tex') {
292: $Apache::londefdef::select++;
293: if ($Apache::londefdef::select == 1) {
294: $currentstring='\noindent\fbox{'.&Apache::lonxml::get_param('value',$parstack,$safeeval).'}\keephidden{';
295: } else {
296: $currentstring='\keephidden{';
297: }
298: }
1.122 albertel 299: return $currentstring;
300: }
301:
302: sub end_option {
303: my ($target,$token) = @_;
304: my $currentstring = '';
1.325 albertel 305: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 306: $currentstring = $token->[2];
1.181 sakharuk 307: } elsif ($target eq 'tex') {
308: $currentstring='}';
309: }
1.122 albertel 310: return $currentstring;
311: }
312:
1.181 sakharuk 313: #-- <input> tag (end tag forbidden)
1.122 albertel 314: sub start_input {
315: my ($target,$token) = @_;
316: my $currentstring = '';
1.325 albertel 317: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 318: $currentstring = $token->[4];
319: }
320: return $currentstring;
321: }
322:
323: sub end_input {
324: my ($target,$token) = @_;
325: my $currentstring = '';
1.325 albertel 326: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 327: $currentstring = $token->[2];
328: }
329: return $currentstring;
330: }
331:
1.181 sakharuk 332: #-- <textarea> tag (end tag required)
1.122 albertel 333: sub start_textarea {
334: my ($target,$token) = @_;
335: my $currentstring = '';
1.325 albertel 336: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 337: $currentstring = $token->[4];
338: }
339: return $currentstring;
340: }
341:
342: sub end_textarea {
343: my ($target,$token) = @_;
344: my $currentstring = '';
1.325 albertel 345: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 346: $currentstring = $token->[2];
347: }
348: return $currentstring;
349: }
350:
1.181 sakharuk 351: #-- <form> tag (end tag required)
1.122 albertel 352: sub start_form {
353: my ($target,$token) = @_;
354: my $currentstring = '';
1.325 albertel 355: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 356: $currentstring = $token->[4];
357: }
358: return $currentstring;
359: }
360:
361: sub end_form {
362: my ($target,$token) = @_;
363: my $currentstring = '';
1.325 albertel 364: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 365: $currentstring = $token->[2];
366: }
367: return $currentstring;
368: }
369:
1.181 sakharuk 370: #-- <title> tag (end tag required)
1.122 albertel 371: sub start_title {
1.327 albertel 372: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 373: my $currentstring = '';
1.324 albertel 374: if ($target eq 'web' || $target eq 'webgrade') {
1.327 albertel 375: $Apache::londefdef::title =
376: &Apache::lonxml::get_all_text('/title',$parser,$style);
1.122 albertel 377: } elsif ($target eq 'tex') {
1.166 sakharuk 378: $currentstring .= '\keephidden{Title of the document: '
1.122 albertel 379: }
380: if ($target eq 'meta') {
381: $currentstring='<title>';
1.185 albertel 382: &start_output($target);
1.122 albertel 383: }
384: return $currentstring;
385: }
386:
387: sub end_title {
388: my ($target,$token) = @_;
389: my $currentstring = '';
1.324 albertel 390: if ($target eq 'web' || $target eq 'webgrade') {
1.327 albertel 391: # start_title takes care of swallowing the title
1.122 albertel 392: } elsif ($target eq 'tex') {
393: $currentstring .= '}';
394: }
395: if ($target eq 'meta') {
1.185 albertel 396: &end_output($target);
1.122 albertel 397: $currentstring='</title>';
398: }
399: return $currentstring;
400: }
401:
1.181 sakharuk 402: #-- <meta> tag (end tag forbidden)
1.122 albertel 403: sub start_meta {
1.299 albertel 404: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 405: my $currentstring = '';
1.325 albertel 406: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 407: my $args='';
408: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
409: if ($args eq '') {
1.299 albertel 410: &Apache::lonxml::get_all_text("/meta",$parser,$style);
1.122 albertel 411: } else {
412: $currentstring = $token->[4];
1.1 sakharuk 413: }
1.135 sakharuk 414: } elsif ($target eq 'meta') {
1.122 albertel 415: unless (&Apache::lonxml::get_param
416: ('http-equiv',$parstack,$safeeval,undef,1)) {
417: my $name=$token->[2]->{'name'};
418: $name=~tr/A-Z/a-z/;
419: $name=~s/\s/\_/gs;
420: $name=~s/\W//gs;
421: if ($name) {
1.154 www 422: $currentstring='<'.$name;
423: my $display=&Apache::lonxml::get_param
424: ('display',$parstack,$safeeval,undef,1);
425: if ($display) {
426: $display=~s/\"/\'/g;
427: $currentstring.=' display="'.$display.'"';
428: }
429: $currentstring.='>'.
1.122 albertel 430: &Apache::lonxml::get_param
431: ('content',$parstack,$safeeval,undef,1).
1.135 sakharuk 432: '</'.$name.'>';
1.1 sakharuk 433: }
1.154 www 434: my $display=&Apache::lonxml::get_param
435: ('display',$parstack,$safeeval,undef,1);
436: if ($display) {
1.204 albertel 437: $display=&HTML::Entities::encode($display,'<>&"');
1.154 www 438: $currentstring.='<'.$name.'.display>'.$display.
439: '</'.$name.'.display>';
440: }
1.1 sakharuk 441: }
1.135 sakharuk 442: } elsif ($target eq 'tex') {
1.151 sakharuk 443: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
444: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
445: if ((not defined $content) && (not defined $name)) {
446: &Apache::lonxml::startredirection();
447: }
1.122 albertel 448: }
449: return $currentstring;
450: }
451:
452: sub end_meta {
1.165 albertel 453: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 454: my $currentstring = '';
1.325 albertel 455: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 456: my $args='';
457: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
458: if ($args ne '') {
1.121 www 459: $currentstring = $token->[4];
1.122 albertel 460: }
1.135 sakharuk 461: } elsif ($target eq 'tex') {
1.165 albertel 462: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
463: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
1.164 albertel 464: if ((not defined $content) && (not defined $name)) {
1.169 albertel 465: &Apache::lonxml::endredirection();
1.164 albertel 466: }
1.135 sakharuk 467: }
1.122 albertel 468: return $currentstring;
469: }
470:
1.121 www 471: # accessrule
1.122 albertel 472: sub start_accessrule {
1.299 albertel 473: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 474: my $currentstring = '';
475: my $eff=&Apache::lonxml::get_param
476: ('effect',$parstack,$safeeval,undef,1);
477: my $realm=&Apache::lonxml::get_param
478: ('realm',$parstack,$safeeval,undef,1);
1.123 www 479: my $role=&Apache::lonxml::get_param
480: ('role',$parstack,$safeeval,undef,1);
481: $realm=~s/\s+//g;
482: $realm=~s/\//\_/g;
483: $realm=~s/^\_//;
484: $realm=~s/\W/\;/g;
485: $role=~s/\s+//g;
486: $role=~s/\//\_/g;
487: $role=~s/\W/\;/g;
1.122 albertel 488: if ($target eq 'web') {
489: my $args='';
490: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
491: if ($args eq '') {
1.299 albertel 492: &Apache::lonxml::get_all_text("/accessrule",$parser,$style);
1.122 albertel 493: } else {
494: $currentstring = $token->[4];
495: }
496: }
497: if ($target eq 'meta') {
1.123 www 498: $currentstring='<rule>'.$eff.':'.$realm.':'.$role.'</rule>';
1.122 albertel 499: }
500: return $currentstring;
501: }
502:
503: sub end_accessrule {
504: my ($target,$token,$tagstack,$parstack,$parser) = @_;
505: my $currentstring = '';
506: if ($target eq 'web') {
507: my $args='';
508: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
509: if ($args ne '') {
510: $currentstring = $token->[4];
511: }
512: }
513: return $currentstring;
514: }
515:
1.181 sakharuk 516: #-- <body> tag (end tag required)
1.122 albertel 517: sub start_body {
518: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
519: my $currentstring = '';
1.244 albertel 520:
1.324 albertel 521: if ($target eq 'web' || $target eq 'webgrade') {
1.170 albertel 522: if ($Apache::lonhomework::parsing_a_problem) {
523: &Apache::lonxml::warning("<body> tag found inside of <problem> tag this can cause problems.");
524: return '';
525: }
1.122 albertel 526:
1.327 albertel 527: if (&is_inside_of($tagstack, "head")) {
528: &end_head(@_);
1.122 albertel 529: }
1.327 albertel 530: $currentstring =
531: &Apache::loncommon::start_page($Apache::londefdef::title,
532: $Apache::londefdef::head,
533: {'add_entries' => $token->[2],
534: 'no_title' => 1,
535: 'force_register' => 1});
536:
1.267 albertel 537: if ($env{'request.state'} ne 'published') {
1.330 albertel 538: $currentstring.=&Apache::lonmenu::constspaceform();
1.122 albertel 539: $currentstring.=(<<EDITBUTTON);
1.278 www 540: <form method="post">
541: <input type="submit" name="editmode" accesskey="e" value="Edit" />
542: </form>
1.327 albertel 543: <br />
1.40 albertel 544: EDITBUTTON
1.1 sakharuk 545: }
1.201 albertel 546: $currentstring.=&Apache::lonxml::message_location();
1.122 albertel 547: } elsif ($target eq 'tex') {
548: $currentstring = '\begin{document}';
549: }
550: return $currentstring;
551: }
552:
553: sub end_body {
1.259 albertel 554: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 555: my $currentstring = &end_p(); # Close off unclosed <p>
1.324 albertel 556: if ($target eq 'web' || $target eq 'webgrade') {
1.327 albertel 557: $currentstring .= &Apache::loncommon::end_page({'discussion' => 1});
1.122 albertel 558: } elsif ($target eq 'tex') {
1.277 foxr 559: $currentstring .= '\strut\newline\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\newline\noindent \end{document}';
1.122 albertel 560: }
561: return $currentstring;
562: }
563:
1.309 albertel 564: # \begin{center} causes a new paragprah spacing that looks odd inside
1.337 foxr 565: # of a table cell. Same at the end of a \center but with a slightly
566: # larger space .. hence center_correction and center_end_correction.
567: #
568: sub center_correction { return '\vspace*{-6 mm}'; }
569: sub center_end_correction { return '\vspace*{-7 mm}'; }
570:
1.181 sakharuk 571: #-- <center> tag (end tag required)
1.122 albertel 572: sub start_center {
1.309 albertel 573: my ($target,$token,$tagstack) = @_;
1.279 foxr 574: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 575: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 576: $currentstring .= $token->[4];
1.122 albertel 577: } elsif ($target eq 'tex') {
1.309 albertel 578: if (&is_inside_of($tagstack, "table")) {
579: $currentstring .= ¢er_correction();
580: }
1.277 foxr 581: $currentstring .= '\begin{center}';
1.144 sakharuk 582: }
1.122 albertel 583: return $currentstring;
584: }
585:
586: sub end_center {
1.309 albertel 587: my ($target,$token,$tagstack) = @_;
1.122 albertel 588: my $currentstring = '';
1.325 albertel 589: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 590: $currentstring = $token->[2];
591: } elsif ($target eq 'tex') {
592: $currentstring = '\end{center}';
1.337 foxr 593: if (&is_inside_of($tagstack, "table")) {
594: $currentstring .= ¢er_end_correction();
595: }
1.144 sakharuk 596: }
1.122 albertel 597: return $currentstring;
598: }
599:
1.181 sakharuk 600: #-- <b> tag (end tag required)
1.279 foxr 601: # NOTE: In TeX mode disables internal <p>
1.122 albertel 602: sub start_b {
603: my ($target,$token) = @_;
604: my $currentstring = '';
1.325 albertel 605: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 606: $currentstring = $token->[4];
607: } elsif ($target eq 'tex') {
1.279 foxr 608: &disable_para();
609: $currentstring .= '\textbf{';
1.122 albertel 610: }
611: return $currentstring;
612: }
613:
614: sub end_b {
615: my ($target,$token) = @_;
616: my $currentstring = '';
1.325 albertel 617: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 618: $currentstring = $token->[2];
619: } elsif ($target eq 'tex') {
1.279 foxr 620: &enable_para();
621: $currentstring = '}';
1.122 albertel 622: }
623: return $currentstring;
624: }
1.35 sakharuk 625:
1.181 sakharuk 626: #-- <strong> tag (end tag required)
1.279 foxr 627: # NOTE: in TeX mode disables internal <p>
1.122 albertel 628: sub start_strong {
629: my ($target,$token) = @_;
630: my $currentstring = '';
1.325 albertel 631: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 632: $currentstring = $token->[4];
633: } elsif ($target eq 'tex') {
1.279 foxr 634: &disable_para();
1.122 albertel 635: $currentstring = '\textbf{';
636: }
637: return $currentstring;
638: }
639:
640: sub end_strong {
641: my ($target,$token) = @_;
642: my $currentstring = '';
1.325 albertel 643: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 644: $currentstring = $token->[2];
645: } elsif ($target eq 'tex') {
1.279 foxr 646: &enable_para();
1.122 albertel 647: $currentstring = '}';
1.144 sakharuk 648: }
1.122 albertel 649: return $currentstring;
650: }
651:
1.181 sakharuk 652: #-- <h1> tag (end tag required)
1.122 albertel 653: sub start_h1 {
1.125 sakharuk 654: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 655: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 656: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 657: $currentstring .= $token->[4];
658: } elsif ($target eq 'tex') {
1.125 sakharuk 659: my $pre;
1.199 albertel 660: my $align=lc(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1));
1.212 sakharuk 661: if ($align eq 'center') {
1.125 sakharuk 662: $pre='\begin{center}';
663: } elsif ($align eq 'left') {
664: $pre='\rlap{';
665: } elsif ($align eq 'right') {
666: $pre=' \hfill \llap{';
667: }
668: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
669: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 670: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 671: } elsif ($target eq 'meta') {
1.277 foxr 672: $currentstring.='<subject>';
1.185 albertel 673: &start_output($target);
1.122 albertel 674: }
675: return $currentstring;
676: }
677:
678: sub end_h1 {
1.125 sakharuk 679: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 680: my $currentstring = '';
1.325 albertel 681: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 682: $currentstring .= $token->[2];
683: } elsif ($target eq 'tex') {
1.212 sakharuk 684: my $post='\vskip 0 mm ';
1.125 sakharuk 685: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 686: if ($align eq 'center') {
1.125 sakharuk 687: $post='\end{center}';
688: } elsif ($align eq 'left') {
689: $post='} \hfill'.'\vskip 0 mm ';
690: } elsif ($align eq 'right') {
691: $post='}'.'\vskip 0 mm ';
692: }
693: $currentstring .= '}}'.$post;
1.122 albertel 694: } elsif ($target eq 'meta') {
1.185 albertel 695: &end_output($target);
1.122 albertel 696: $currentstring='</subject>';
697: }
698: return $currentstring;
699: }
700:
1.35 sakharuk 701: #-- <h2> tag
1.122 albertel 702: sub start_h2 {
1.125 sakharuk 703: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 704: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 705: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 706: $currentstring .= $token->[4];
707: } elsif ($target eq 'tex') {
1.125 sakharuk 708: my $pre;
709: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 710: if ($align eq 'center') {
1.125 sakharuk 711: $pre='\begin{center}';
712: } elsif ($align eq 'left') {
713: $pre='\rlap{';
714: } elsif ($align eq 'right') {
715: $pre=' \hfill \llap{';
716: }
717: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
718: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 719: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 720: }
721: return $currentstring;
722: }
723:
724: sub end_h2 {
1.125 sakharuk 725: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 726: my $currentstring = '';
1.325 albertel 727: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 728: $currentstring .= $token->[2];
729: } elsif ($target eq 'tex') {
1.212 sakharuk 730: my $post='\vskip 0 mm ';
1.125 sakharuk 731: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 732: if ($align eq 'center') {
1.125 sakharuk 733: $post='\end{center}';
734: } elsif ($align eq 'left') {
735: $post='} \hfill'.'\vskip 0 mm ';
736: } elsif ($align eq 'right') {
737: $post='}'.'\vskip 0 mm ';
738: }
739: $currentstring .= '}}'.$post;
1.122 albertel 740: }
741: return $currentstring;
742: }
743:
1.35 sakharuk 744: #-- <h3> tag
1.122 albertel 745: sub start_h3 {
1.125 sakharuk 746: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 747: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 748: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 749: $currentstring .= $token->[4];
750: } elsif ($target eq 'tex') {
1.125 sakharuk 751: my $pre;
752: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 753: if ($align eq 'center') {
1.125 sakharuk 754: $pre='\begin{center}';
755: } elsif ($align eq 'left') {
756: $pre='\rlap{';
757: } elsif ($align eq 'right') {
758: $pre=' \hfill \llap{';
759: }
760: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
761: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 762: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 763: }
764: return $currentstring;
765: }
766:
767: sub end_h3 {
1.125 sakharuk 768: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 769: my $currentstring = '';
1.325 albertel 770: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 771: $currentstring .= $token->[2];
772: } elsif ($target eq 'tex') {
1.212 sakharuk 773: my $post='\vskip 0 mm ';
1.125 sakharuk 774: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 775: if ($align eq 'center') {
1.125 sakharuk 776: $post='\end{center}';
777: } elsif ($align eq 'left') {
778: $post='} \hfill'.'\vskip 0 mm ';
779: } elsif ($align eq 'right') {
780: $post='}'.'\vskip 0 mm ';
781: }
782: $currentstring .= '}}'.$post;
1.122 albertel 783: }
784: return $currentstring;
785: }
786:
1.35 sakharuk 787: #-- <h4> tag
1.122 albertel 788: sub start_h4 {
1.125 sakharuk 789: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 790: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 791: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 792: $currentstring .= $token->[4];
793: } elsif ($target eq 'tex') {
1.125 sakharuk 794: my $pre;
795: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 796: if ($align eq 'center') {
1.125 sakharuk 797: $pre='\begin{center}';
798: } elsif ($align eq 'left') {
799: $pre='\rlap{';
800: } elsif ($align eq 'right') {
801: $pre=' \hfill \llap{';
802: }
803: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
804: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 805: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 806: }
807: return $currentstring;
808: }
809:
810: sub end_h4 {
1.125 sakharuk 811: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 812: my $currentstring = '';
1.325 albertel 813: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 814: $currentstring .= $token->[2];
815: } elsif ($target eq 'tex') {
1.212 sakharuk 816: my $post='\vskip 0 mm ';
1.125 sakharuk 817: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 818: if ($align eq 'center') {
1.125 sakharuk 819: $post='\end{center}';
820: } elsif ($align eq 'left') {
821: $post='} \hfill'.'\vskip 0 mm ';
822: } elsif ($align eq 'right') {
823: $post='}'.'\vskip 0 mm ';
824: }
825: $currentstring .= '}}'.$post;
1.122 albertel 826: }
827: return $currentstring;
828: }
829:
1.35 sakharuk 830: #-- <h5> tag
1.122 albertel 831: sub start_h5 {
1.125 sakharuk 832: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 833: my $currentstring = &end_p(); # Close off any prior paras.
1.325 albertel 834: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 835: $currentstring .= $token->[4];
836: } elsif ($target eq 'tex') {
1.125 sakharuk 837: my $pre;
838: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 839: if ($align eq 'center') {
1.125 sakharuk 840: $pre='\begin{center}';
841: } elsif ($align eq 'left') {
842: $pre='\rlap{';
843: } elsif ($align eq 'right') {
844: $pre=' \hfill \llap{';
845: }
846: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
847: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 848: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 849: }
850: return $currentstring;
851: }
852:
853: sub end_h5 {
1.125 sakharuk 854: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 855: my $currentstring = '';
1.325 albertel 856: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 857: $currentstring .= $token->[2];
858: } elsif ($target eq 'tex') {
1.212 sakharuk 859: my $post='\vskip 0 mm ';
1.125 sakharuk 860: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 861: if ($align eq 'center') {
1.125 sakharuk 862: $post='\end{center}';
863: } elsif ($align eq 'left') {
864: $post='} \hfill'.'\vskip 0 mm ';
865: } elsif ($align eq 'right') {
866: $post='}'.'\vskip 0 mm ';
867: }
868: $currentstring .= '}}'.$post;
1.122 albertel 869: }
870: return $currentstring;
871: }
872:
1.35 sakharuk 873: #-- <h6> tag
1.122 albertel 874: sub start_h6 {
1.125 sakharuk 875: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 876: my $currentstring = &end_p(); # Close off any prior paras.
1.325 albertel 877: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 878: $currentstring .= $token->[4];
879: } elsif ($target eq 'tex') {
1.125 sakharuk 880: my $pre;
881: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 882: if ($align eq 'center') {
1.125 sakharuk 883: $pre='\begin{center}';
884: } elsif ($align eq 'left') {
885: $pre='\rlap{';
886: } elsif ($align eq 'right') {
887: $pre=' \hfill \llap{';
888: }
889: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
890: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 891: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 892: }
893: return $currentstring;
894: }
895:
896: sub end_h6 {
1.125 sakharuk 897: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 898: my $currentstring = '';
1.325 albertel 899: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 900: $currentstring .= $token->[2];
901: } elsif ($target eq 'tex') {
1.212 sakharuk 902: my $post='\vskip 0 mm ';
1.125 sakharuk 903: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 904: if ($align eq 'center') {
1.125 sakharuk 905: $post='\end{center}';
906: } elsif ($align eq 'left') {
907: $post='} \hfill'.'\vskip 0 mm ';
908: } elsif ($align eq 'right') {
909: $post='}'.'\vskip 0 mm ';
910: }
911: $currentstring .= '}}'.$post;
1.122 albertel 912: }
913: return $currentstring;
914: }
915:
1.181 sakharuk 916: #--- <cite> tag (end tag required)
1.122 albertel 917: sub start_cite {
918: my ($target,$token) = @_;
919: my $currentstring = '';
1.325 albertel 920: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 921: $currentstring .= $token->[4];
922: } elsif ($target eq 'tex') {
1.179 sakharuk 923: $currentstring .= '\textit{';
1.144 sakharuk 924: }
1.122 albertel 925: return $currentstring;
926: }
927:
928: sub end_cite {
929: my ($target,$token) = @_;
930: my $currentstring = '';
1.325 albertel 931: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 932: $currentstring .= $token->[2];
933: } elsif ($target eq 'tex') {
1.179 sakharuk 934: $currentstring .= '}';
1.144 sakharuk 935: }
1.122 albertel 936: return $currentstring;
937: }
938:
1.181 sakharuk 939: #-- <i> tag (end tag required)
1.122 albertel 940: sub start_i {
941: my ($target,$token) = @_;
942: my $currentstring = '';
1.325 albertel 943: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 944: $currentstring .= $token->[4];
945: } elsif ($target eq 'tex') {
946: $currentstring .= '\textit{';
1.144 sakharuk 947: }
1.122 albertel 948: return $currentstring;
949: }
950:
951: sub end_i {
952: my ($target,$token) = @_;
953: my $currentstring = '';
1.325 albertel 954: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 955: $currentstring .= $token->[2];
956: } elsif ($target eq 'tex') {
957: $currentstring .= '}';
958: }
959: return $currentstring;
960: }
961:
1.181 sakharuk 962: #-- <address> tag (end tag required)
1.122 albertel 963: sub start_address {
964: my ($target,$token) = @_;
965: my $currentstring = '';
1.325 albertel 966: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 967: $currentstring .= $token->[4];
968: } elsif ($target eq 'tex') {
1.179 sakharuk 969: $currentstring .= '\textit{';
1.144 sakharuk 970: }
1.122 albertel 971: return $currentstring;
972: }
973:
974: sub end_address {
975: my ($target,$token) = @_;
976: my $currentstring = '';
1.325 albertel 977: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 978: $currentstring .= $token->[2];
979: } elsif ($target eq 'tex') {
1.179 sakharuk 980: $currentstring .= '}';
1.122 albertel 981: }
982: return $currentstring;
983: }
984:
1.181 sakharuk 985: #-- <dfn> tag (end tag required)
1.122 albertel 986: sub start_dfn {
987: my ($target,$token) = @_;
988: my $currentstring = '';
1.325 albertel 989: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 990: $currentstring .= $token->[4];
991: } elsif ($target eq 'tex') {
1.179 sakharuk 992: $currentstring .= '\textit{';
1.122 albertel 993: }
994: return $currentstring;
995: }
996:
997: sub end_dfn {
998: my ($target,$token) = @_;
999: my $currentstring = '';
1.325 albertel 1000: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1001: $currentstring .= $token->[2];
1002: } elsif ($target eq 'tex') {
1.179 sakharuk 1003: $currentstring .= '}';
1.144 sakharuk 1004: }
1.122 albertel 1005: return $currentstring;
1006: }
1007:
1.181 sakharuk 1008: #-- <tt> tag (end tag required)
1.122 albertel 1009: sub start_tt {
1010: my ($target,$token) = @_;
1011: my $currentstring = '';
1.325 albertel 1012: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1013: $currentstring .= $token->[4];
1014: } elsif ($target eq 'tex') {
1015: $currentstring .= '\texttt{';
1.144 sakharuk 1016: }
1.122 albertel 1017: return $currentstring;
1018: }
1019:
1020: sub end_tt {
1021: my ($target,$token) = @_;
1022: my $currentstring = '';
1.325 albertel 1023: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1024: $currentstring .= $token->[2];
1025: } elsif ($target eq 'tex') {
1026: $currentstring .= '}';
1027: }
1028: return $currentstring;
1029: }
1030:
1.181 sakharuk 1031: #-- <kbd> tag (end tag required)
1.122 albertel 1032: sub start_kbd {
1033: my ($target,$token) = @_;
1034: my $currentstring = '';
1.325 albertel 1035: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1036: $currentstring .= $token->[4];
1037: } elsif ($target eq 'tex') {
1.179 sakharuk 1038: $currentstring .= '\texttt{';
1.144 sakharuk 1039: }
1.122 albertel 1040: return $currentstring;
1041: }
1042:
1043: sub end_kbd {
1044: my ($target,$token) = @_;
1045: my $currentstring = '';
1.325 albertel 1046: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1047: $currentstring .= $token->[2];
1048: } elsif ($target eq 'tex') {
1.179 sakharuk 1049: $currentstring .= '}';
1.144 sakharuk 1050: }
1.122 albertel 1051: return $currentstring;
1052: }
1053:
1.181 sakharuk 1054: #-- <code> tag (end tag required)
1.122 albertel 1055: sub start_code {
1056: my ($target,$token) = @_;
1057: my $currentstring = '';
1.325 albertel 1058: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1059: $currentstring .= $token->[4];
1060: } elsif ($target eq 'tex') {
1061: $currentstring .= '\texttt{';
1062: }
1063: return $currentstring;
1064: }
1065:
1066: sub end_code {
1067: my ($target,$token) = @_;
1068: my $currentstring = '';
1.325 albertel 1069: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1070: $currentstring .= $token->[2];
1071: } elsif ($target eq 'tex') {
1072: $currentstring .= '}';
1073: }
1074: return $currentstring;
1075: }
1076:
1.181 sakharuk 1077: #-- <em> tag (end tag required)
1.122 albertel 1078: sub start_em {
1079: my ($target,$token) = @_;
1080: my $currentstring = '';
1.325 albertel 1081: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1082: $currentstring .= $token->[4];
1083: } elsif ($target eq 'tex') {
1084: $currentstring .= '\emph{';
1.144 sakharuk 1085: }
1.122 albertel 1086: return $currentstring;
1087: }
1088:
1089: sub end_em {
1090: my ($target,$token) = @_;
1091: my $currentstring = '';
1.325 albertel 1092: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1093: $currentstring .= $token->[2];
1094: } elsif ($target eq 'tex') {
1095: $currentstring .= '}';
1.144 sakharuk 1096: }
1.122 albertel 1097: return $currentstring;
1098: }
1099:
1.181 sakharuk 1100: #-- <q> tag (end tag required)
1.122 albertel 1101: sub start_q {
1102: my ($target,$token) = @_;
1103: my $currentstring = '';
1.325 albertel 1104: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1105: $currentstring .= $token->[4];
1106: } elsif ($target eq 'tex') {
1.179 sakharuk 1107: $currentstring .= '\emph{';
1.122 albertel 1108: }
1109: return $currentstring;
1110: }
1111:
1112: sub end_q {
1113: my ($target,$token) = @_;
1114: my $currentstring = '';
1.325 albertel 1115: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1116: $currentstring .= $token->[2];
1117: } elsif ($target eq 'tex') {
1.179 sakharuk 1118: $currentstring .= '}';
1.144 sakharuk 1119: }
1.122 albertel 1120: return $currentstring;
1121: }
1122:
1.277 foxr 1123: # <p> is a bit strange since it does not require a closing </p>
1124: # However in latex, we must often output closing stuff to end
1125: # environments and {}'s etc. Therefore we do all the work
1126: # of figuring out the ending strings in the start tag processing,
1127: # and provide a mechanism to output the stop text external
1128: # to tag processing.
1129: #
1130: {
1131:
1132: my $closing_string = ''; # String required to close <p>
1133:
1.279 foxr 1134: # Some tags are <p> fragile meaning that <p> inside of them
1135: # does not work within TeX mode. This is managed via the
1136: # counter below:
1137: #
1138:
1139: my $para_disabled = 0;
1140:
1141: sub disable_para {
1142: $para_disabled++;
1143: }
1144: sub enable_para {
1145: $para_disabled--;
1146: }
1147:
1148:
1.181 sakharuk 1149: #-- <p> tag (end tag optional)
1.198 sakharuk 1150: #optional attribute - align="center|left|right"
1.122 albertel 1151: sub start_p {
1.157 sakharuk 1152: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1153: my $currentstring = '';
1.325 albertel 1154: if ($target eq 'web' || $target eq 'webgrade') {
1.279 foxr 1155: $currentstring .= &end_p(); # close off prior para if in progress.
1.122 albertel 1156: $currentstring .= $token->[4];
1.279 foxr 1157: if (! ($currentstring =~ /\//)) {
1158: $closing_string = '</p>'; # Deal correctly with <p /> e.g.
1159: }
1160: } elsif ($target eq 'tex' && !$para_disabled) {
1.313 foxr 1161:
1.279 foxr 1162: $currentstring .= &end_p(); # close off prior para if in progress.
1.198 sakharuk 1163: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1164: if ($align eq 'center') {
1.333 albertel 1165: $currentstring .='\begin{center}\par ';
1.277 foxr 1166: $closing_string = '\end{center}';
1.309 albertel 1167: if (&is_inside_of($tagstack, "table")) {
1168: $currentstring = ¢er_correction().$currentstring;
1169: }
1.198 sakharuk 1170: } elsif ($align eq 'right') {
1.323 foxr 1171: $currentstring.="\n".'{\flushright ';
1172: # $currentstring.='\makebox['.$env{'form.textwidth'}.']{\hfill\llap{';
1173: $closing_string= "}\n";
1.198 sakharuk 1174: } elsif ($align eq 'left') {
1.323 foxr 1175: $currentstring.= "\n".'{\flushleft ';
1176: # $currentstring.='\noindent\makebox['.$env{'form.textwidth'}.']{{';
1177: $closing_string = "}\n";
1.216 matthew 1178: } else {
1.277 foxr 1179: $currentstring.='\par ';
1.313 foxr 1180: if (&is_inside_of($tagstack, 'table')) {
1.315 foxr 1181: $closing_string = '\vskip 0pt'; # Seems to be consistent with <p> in tables.
1.313 foxr 1182: } else {
1183: $closing_string = '\strut\\\\\strut ';
1184: }
1.216 matthew 1185: }
1.277 foxr 1186:
1.144 sakharuk 1187: }
1.122 albertel 1188: return $currentstring;
1189: }
1.277 foxr 1190: #
1191: # End paragraph processing just requires that we output the
1192: # closing string that was saved and blank it.
1193: sub end_p {
1.279 foxr 1194: # Note only 'tex' mode uses disable_para and enable_para
1195: # so we don't need to know the target in the check below:
1196:
1197: if (!$para_disabled) {
1198: my $current_string = $closing_string;
1199: $closing_string = ''; # Not in a para anymore.
1200: return $current_string;
1201: } else {
1202: return '';
1203: }
1.122 albertel 1204:
1205: }
1.277 foxr 1206: }
1.181 sakharuk 1207: #-- <br> tag (end tag forbidden)
1.122 albertel 1208: sub start_br {
1209: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1210: my $currentstring = '';
1.325 albertel 1211: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1212: $currentstring .= $token->[4];
1213: } elsif ($target eq 'tex') {
1.227 sakharuk 1214: my @tempo=@$tagstack;
1.229 sakharuk 1215: my $signal=0;
1.287 foxr 1216: # Not going to factor this to is_inside_of since that would require
1217: # multiple stack traversals.
1218: #
1.227 sakharuk 1219: for (my $i=$#tempo;$i>=0;$i--) {
1220: if (($tempo[$i] eq 'b') || ($tempo[$i] eq 'strong') ||
1.334 albertel 1221: ($tempo[$i] eq 'ol') || ($tempo[$i] eq 'ul')) {
1.229 sakharuk 1222: $signal=1;
1.334 albertel 1223: }
1224: if (($tempo[$i] eq 'td') || ($tempo[$i] eq 'th')) {
1.336 foxr 1225: $signal = 1;
1.227 sakharuk 1226: }
1227: }
1.334 albertel 1228: if ($signal eq 1) {
1.219 sakharuk 1229: $currentstring .= ' \vskip 0 mm ';
1.355 foxr 1230: } else {
1.219 sakharuk 1231: $currentstring .= '\strut \\\\ \strut ';
1.1 sakharuk 1232: }
1.355 foxr 1233:
1.144 sakharuk 1234: }
1.122 albertel 1235: return $currentstring;
1236: }
1237:
1238: sub end_br {
1239: my ($target,$token) = @_;
1240: my $currentstring = '';
1.325 albertel 1241: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1242: $currentstring .= $token->[2];
1243: }
1244: return $currentstring;
1245: }
1246:
1.181 sakharuk 1247: #-- <big> tag (end tag required)
1.122 albertel 1248: sub start_big {
1249: my ($target,$token) = @_;
1250: my $currentstring = '';
1.325 albertel 1251: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1252: $currentstring .= $token->[4];
1253: } elsif ($target eq 'tex') {
1.137 sakharuk 1254: $currentstring .= '{\large ';
1.144 sakharuk 1255: }
1.122 albertel 1256: return $currentstring;
1257: }
1258:
1259: sub end_big {
1260: my ($target,$token) = @_;
1261: my $currentstring = '';
1.325 albertel 1262: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1263: $currentstring .= $token->[2];
1264: } elsif ($target eq 'tex') {
1265: $currentstring .= '}';
1266: }
1267: return $currentstring;
1268: }
1269:
1.181 sakharuk 1270: #-- <small> tag (end tag required)
1.122 albertel 1271: sub start_small {
1272: my ($target,$token) = @_;
1273: my $currentstring = '';
1.325 albertel 1274: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1275: $currentstring .= $token->[4];
1276: } elsif ($target eq 'tex') {
1277: $currentstring .= '{\footnotesize ';
1.144 sakharuk 1278: }
1.122 albertel 1279: return $currentstring;
1280: }
1281:
1282: sub end_small {
1283: my ($target,$token) = @_;
1284: my $currentstring = '';
1.325 albertel 1285: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1286: $currentstring .= $token->[2];
1287: } elsif ($target eq 'tex') {
1288: $currentstring .= '}';
1289: }
1290: return $currentstring;
1291: }
1292:
1.181 sakharuk 1293: #-- <basefont> tag (end tag forbidden)
1.122 albertel 1294: sub start_basefont {
1.126 sakharuk 1295: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.122 albertel 1296: my $currentstring = '';
1.325 albertel 1297: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1298: $currentstring = $token->[4];
1.126 sakharuk 1299: } elsif ($target eq 'tex') {
1300: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1301: if (defined $basesize) {
1302: $currentstring = '{\\'.$basesize.' ';
1303: }
1304: }
1.122 albertel 1305: return $currentstring;
1306: }
1307:
1308: sub end_basefont {
1.126 sakharuk 1309: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1310: my $currentstring = '';
1.325 albertel 1311: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1312: $currentstring = $token->[4];
1.126 sakharuk 1313: } elsif ($target eq 'tex') {
1314: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1315: if (defined $basesize) {
1316: $currentstring = '}';
1317: }
1318: }
1.122 albertel 1319: return $currentstring;
1320: }
1321:
1.181 sakharuk 1322: #-- <font> tag (end tag required)
1.122 albertel 1323: sub start_font {
1324: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1325: my $currentstring = '';
1.325 albertel 1326: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1327: my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
1.204 albertel 1328: if ($face!~/symbol/i) {
1.267 albertel 1329: if (($env{'browser.fontenhance'} eq 'on') ||
1330: ($env{'browser.blackwhite'} eq 'on')) { return ''; }
1.155 www 1331: }
1.122 albertel 1332: $currentstring = $token->[4];
1.126 sakharuk 1333: } elsif ($target eq 'tex') {
1334: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1335: if (defined $fontsize) {
1336: $currentstring = '{\\'.$fontsize.' ';
1337: }
1338: }
1.122 albertel 1339: return $currentstring;
1340: }
1341:
1342: sub end_font {
1343: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1344: my $currentstring = '';
1.325 albertel 1345: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1346: $currentstring = $token->[2];
1.126 sakharuk 1347: } elsif ($target eq 'tex') {
1348: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1349: if (defined $fontsize) {
1350: $currentstring = '}';
1351: }
1352: }
1.122 albertel 1353: return $currentstring;
1354: }
1355:
1.181 sakharuk 1356: #-- <strike> tag (end tag required)
1.122 albertel 1357: sub start_strike {
1358: my ($target,$token) = @_;
1359: my $currentstring = '';
1.325 albertel 1360: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1361: $currentstring .= $token->[4];
1362: } elsif ($target eq 'tex') {
1363: &Apache::lonxml::startredirection();
1364: }
1365: return $currentstring;
1366: }
1367:
1368: sub end_strike {
1369: my ($target,$token) = @_;
1370: my $currentstring = '';
1.325 albertel 1371: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1372: $currentstring .= $token->[2];
1373: } elsif ($target eq 'tex') {
1374: $currentstring=&Apache::lonxml::endredirection();
1375: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1376: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1377: $currentstring=~s/(\S)\s*$/$1\}/;
1378: }
1379: return $currentstring;
1380: }
1381:
1.181 sakharuk 1382: #-- <s> tag (end tag required)
1.122 albertel 1383: sub start_s {
1384: my ($target,$token) = @_;
1385: my $currentstring = '';
1.325 albertel 1386: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1387: $currentstring .= $token->[4];
1388: } elsif ($target eq 'tex') {
1389: &Apache::lonxml::startredirection();
1390: }
1391: return $currentstring;
1392: }
1393:
1394: sub end_s {
1395: my ($target,$token) = @_;
1396: my $currentstring = '';
1.325 albertel 1397: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1398: $currentstring .= $token->[2];
1399: } elsif ($target eq 'tex') {
1400: $currentstring=&Apache::lonxml::endredirection();
1401: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1402: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1403: $currentstring=~s/(\S)\s*$/$1\}/;
1404: }
1405: return $currentstring;
1406: }
1407:
1.181 sakharuk 1408: #-- <sub> tag (end tag required)
1.122 albertel 1409: sub start_sub {
1410: my ($target,$token) = @_;
1411: my $currentstring = '';
1.325 albertel 1412: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1413: $currentstring .= $token->[4];
1414: } elsif ($target eq 'tex') {
1.355 foxr 1415: $currentstring .= '\raisebox{-\smallskipamount}{\scriptsize{';
1.122 albertel 1416: }
1417: return $currentstring;
1418: }
1419:
1420: sub end_sub {
1421: my ($target,$token) = @_;
1422: my $currentstring = '';
1.325 albertel 1423: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1424: $currentstring .= $token->[2];
1425: } elsif ($target eq 'tex') {
1.202 sakharuk 1426: $currentstring .= '}}';
1.122 albertel 1427: }
1428: return $currentstring;
1429: }
1430:
1.181 sakharuk 1431: #-- <sup> tag (end tag required)
1.122 albertel 1432: sub start_sup {
1433: my ($target,$token) = @_;
1434: my $currentstring = '';
1.325 albertel 1435: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1436: $currentstring .= $token->[4];
1437: } elsif ($target eq 'tex') {
1.355 foxr 1438: $currentstring .= '\raisebox{\smallskipamount}{\scriptsize{';
1.122 albertel 1439: }
1440: return $currentstring;
1441: }
1442:
1443: sub end_sup {
1444: my ($target,$token) = @_;
1445: my $currentstring = '';
1.325 albertel 1446: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1447: $currentstring .= $token->[2];
1448: } elsif ($target eq 'tex') {
1.202 sakharuk 1449: $currentstring .= '}}';
1.122 albertel 1450: }
1451: return $currentstring;
1452: }
1453:
1.181 sakharuk 1454: #-- <hr> tag (end tag forbidden)
1.122 albertel 1455: sub start_hr {
1.124 sakharuk 1456: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1457: my $currentstring = &end_p(); # End enclosing para.
1.325 albertel 1458: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1459: $currentstring .= $token->[4];
1460: } elsif ($target eq 'tex') {
1.149 sakharuk 1461: my $LaTeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1.124 sakharuk 1462: if (defined $LaTeXwidth) {
1463: if ($LaTeXwidth=~/^%/) {
1464: substr($LaTeXwidth,0,1)='';
1465: $LaTeXwidth=($LaTeXwidth/100).'\textwidth';
1466: }
1467: } else {
1.148 sakharuk 1468: $LaTeXwidth ='0.9\textwidth';
1.124 sakharuk 1469: }
1470: my ($pre,$post);
1471: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1472: if (($align eq 'center') || (not defined $align)) {
1473: $pre=''; $post='';
1474: } elsif ($align eq 'left') {
1475: $pre='\rlap{'; $post='} \hfill';
1476: } elsif ($align eq 'right') {
1477: $pre=' \hfill \llap{'; $post='}';
1478: }
1.148 sakharuk 1479: $currentstring .= ' \vskip 0 mm \noindent\makebox['.$LaTeXwidth.']{'.$pre.'\makebox['.
1.124 sakharuk 1480: $LaTeXwidth.'][b]{\hrulefill}'.$post.'}\vskip 0 mm ';
1.122 albertel 1481: }
1482: return $currentstring;
1483: }
1484:
1485: sub end_hr {
1486: my ($target,$token) = @_;
1487: my $currentstring = '';
1.325 albertel 1488: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1489: $currentstring .= $token->[2];
1.148 sakharuk 1490: }
1.122 albertel 1491: return $currentstring;
1492: }
1493:
1.181 sakharuk 1494: #-- <div> tag (end tag required)
1.280 foxr 1495: {
1496:
1497: # Since div can be nested, the stack below is used
1498: # in 'tex' mode to store the ending strings
1499: # for the div stack.
1500:
1501: my @div_end_stack;
1502:
1.122 albertel 1503: sub start_div {
1.280 foxr 1504: my ($target,$token, $tagstack, $parstack, $parser, $safeeval) = @_;
1.279 foxr 1505: my $currentstring = &end_p(); # Close enclosing para.
1.325 albertel 1506: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1507: $currentstring .= $token->[4];
1508: }
1.280 foxr 1509: if ($target eq 'tex') {
1510: # 4 possible alignments: left, right, center, and -missing-.
1511:
1512: my $endstring = '';
1513:
1514: my $align = lc(&Apache::lonxml::get_param('align', $parstack,
1515: $safeeval, undef, 1));
1516: if ($align eq 'center') {
1517: $currentstring .= '\begin{center}';
1518: $endstring = '\end{center}';
1.309 albertel 1519: if (&is_inside_of($tagstack, "table")) {
1520: $currentstring = ¢er_correction().$currentstring;
1521: }
1.280 foxr 1522: }
1523: elsif ($align eq 'right') {
1524: $currentstring .= '\begin{flushright}';
1525: $endstring .= '\end{flushright}';
1526: } elsif ($align eq 'left') {
1527: $currentstring .= '\begin{flushleft}';
1528: $endstring = '\end{flushleft}';
1529: } else {
1530:
1531: }
1532: $currentstring .= "\n"; # For human readability.
1533: $endstring = "\n$endstring\n"; # For human readability
1534: push(@div_end_stack, $endstring);
1535: }
1.122 albertel 1536: return $currentstring;
1537: }
1538:
1539: sub end_div {
1540: my ($target,$token) = @_;
1541: my $currentstring = '';
1.325 albertel 1542: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1543: $currentstring .= $token->[2];
1.280 foxr 1544: }
1545: if ($target eq 'tex') {
1546: my $endstring = pop @div_end_stack;
1547: $currentstring .= $endstring;
1548: }
1.122 albertel 1549: return $currentstring;
1550: }
1.280 foxr 1551: }
1.122 albertel 1552:
1.181 sakharuk 1553: #-- <a> tag (end tag required)
1.122 albertel 1554: sub start_a {
1.149 sakharuk 1555: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1556: my $currentstring = '';
1.325 albertel 1557: if ($target eq 'web' || $target eq 'webgrade') {
1.250 albertel 1558: my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
1559: undef,1);
1560: $currentstring=&Apache::lonenc::encrypt_ref($token,{'href'=>$href});
1.122 albertel 1561: }
1562: return $currentstring;
1563: }
1564:
1565: sub end_a {
1.168 albertel 1566: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1567: my $currentstring = '';
1.325 albertel 1568: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1569: $currentstring .= $token->[2];
1570: }
1.351 foxr 1571: if ($target eq 'tex') {
1.352 albertel 1572: my $href =
1573: &Apache::lonxml::get_param('href',$parstack,$safeeval,undef,1);
1574: my $name =
1575: &Apache::lonxml::get_param('name',$parstack,$safeeval,undef,1);
1576: if ($href =~ /\S/) {
1577: $href =~ s/([^\\])%/$1\\\%/g;
1578: $currentstring .= ' ({\tt URI:'.&Apache::lonxml::latex_special_symbols($href).'})';
1579: } elsif ($name =~ /\S/) {
1580: $currentstring .= ' ({\tt Anchor:'.&Apache::lonxml::latex_special_symbols($name).'})';
1.351 foxr 1581: } else {
1582: $currentstring.='';
1583: }
1584: }
1.122 albertel 1585: return $currentstring;
1586: }
1587:
1.181 sakharuk 1588: #-- <li> tag (end tag optional)
1.122 albertel 1589: sub start_li {
1.168 albertel 1590: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1591: my $currentstring = '';
1.325 albertel 1592: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1593: $currentstring = $token->[4];
1594: } elsif ($target eq 'tex') {
1.237 sakharuk 1595: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1596: my $value=&Apache::lonxml::get_param('value',$parstack,$safeeval,undef,0);
1.238 albertel 1597: #FIXME need to support types i and I
1598: if ($type=~/disc/) {
1599: $currentstring .= ' \item[$\bullet$] ';
1600: } elsif ($type=~/circle/) {
1601: $currentstring .= ' \item[$\circ$] ';
1.146 sakharuk 1602: } elsif ($type=~/square/) {
1.238 albertel 1603: $currentstring .= ' \item[$\diamond$] ';
1604: } elsif ($type eq '1') {
1605: $currentstring .= ' \item['.($Apache::londefdef::list_index+1).'.]';
1.237 sakharuk 1606: } elsif ($type eq 'A') {
1.238 albertel 1607: $currentstring .= ' \item['.('A'..'Z')[$Apache::londefdef::list_index].'.]';
1.237 sakharuk 1608: } elsif ($type eq 'a') {
1.238 albertel 1609: $currentstring .= ' \item['.('a'..'z')[$Apache::londefdef::list_index].'.]';
1.237 sakharuk 1610: } elsif ($value ne '') {
1611: $currentstring .= ' \item['.$value.'] ';
1.122 albertel 1612: } else {
1.146 sakharuk 1613: $currentstring .= ' \item ';
1.122 albertel 1614: }
1.238 albertel 1615: $Apache::londefdef::list_index++;
1616: }
1.122 albertel 1617: return $currentstring;
1618: }
1619:
1620: sub end_li {
1621: my ($target,$token) = @_;
1.279 foxr 1622: my $currentstring = &end_p(); # In case there's a <p> in the <li>
1.325 albertel 1623: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1624: $currentstring .= $token->[2];
1.122 albertel 1625: }
1626: return $currentstring;
1627: }
1628:
1.181 sakharuk 1629: #-- <u> tag (end tag required)
1.122 albertel 1630: sub start_u {
1631: my ($target,$token) = @_;
1632: my $currentstring = '';
1.325 albertel 1633: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1634: $currentstring .= $token->[4];
1635: } elsif ($target eq 'tex') {
1636: &Apache::lonxml::startredirection();
1637: }
1638: return $currentstring;
1639: }
1640:
1641: sub end_u {
1642: my ($target,$token) = @_;
1643: my $currentstring = '';
1.325 albertel 1644: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1645: $currentstring .= $token->[2];
1646: } elsif ($target eq 'tex') {
1647: $currentstring=&Apache::lonxml::endredirection();
1648: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1649: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1650: $currentstring=~s/(\S)\s*$/$1\}/;
1651: }
1652: return $currentstring;
1653: }
1654:
1.181 sakharuk 1655: #-- <ul> tag (end tag required)
1.122 albertel 1656: sub start_ul {
1.125 sakharuk 1657: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1658: my $currentstring = &end_p(); # Close off enclosing list.
1.325 albertel 1659: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1660: $currentstring .= $token->[4];
1.122 albertel 1661: } elsif ($target eq 'tex') {
1.125 sakharuk 1662: my $TeXtype=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1.238 albertel 1663: $Apache::londefdef::list_index=0;
1.125 sakharuk 1664: if ($TeXtype eq 'disc') {
1.222 sakharuk 1665: $currentstring .= '\renewcommand{\labelitemi}{$\bullet$}'.
1666: '\renewcommand{\labelitemii}{$\bullet$}'.
1667: '\renewcommand{\labelitemiii}{$\bullet$}'.
1668: '\renewcommand{\labelitemiv}{$\bullet$}';
1.125 sakharuk 1669: } elsif ($TeXtype eq 'circle') {
1.222 sakharuk 1670: $currentstring .= '\renewcommand{\labelitemi}{$\circ$}'.
1671: '\renewcommand{\labelitemii}{$\circ$}'.
1672: '\renewcommand{\labelitemiii}{$\circ$}'.
1673: '\renewcommand{\labelitemiv}{$\circ$}';
1.125 sakharuk 1674: } elsif ($TeXtype eq 'square') {
1.222 sakharuk 1675: $currentstring .= '\renewcommand{\labelitemi}{$\diamond$}'.
1676: '\renewcommand{\labelitemii}{$\diamond$}'.
1677: '\renewcommand{\labelitemiii}{$\diamond$}'.
1678: '\renewcommand{\labelitemiv}{$\diamond$}';
1.125 sakharuk 1679: }
1.222 sakharuk 1680: $currentstring .= '\strut \begin{itemize}';
1.122 albertel 1681: }
1682: return $currentstring;
1683: }
1684:
1685: sub end_ul {
1686: my ($target,$token) = @_;
1687: my $currentstring = '';
1.325 albertel 1688: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1689: $currentstring = $token->[2];
1690: } elsif ($target eq 'tex') {
1.222 sakharuk 1691: $currentstring = '\end{itemize} \renewcommand{\labelitemi}{$\bullet$}'.
1692: '\renewcommand{\labelitemii}{$\bullet$}'.
1693: '\renewcommand{\labelitemiii}{$\bullet$}'.
1694: '\renewcommand{\labelitemiv}{$\bullet$}\strut ';
1.122 albertel 1695: }
1696: return $currentstring;
1697: }
1698:
1.181 sakharuk 1699: #-- <menu> tag (end tag required)
1.122 albertel 1700: sub start_menu {
1701: my ($target,$token) = @_;
1702: my $currentstring = '';
1.325 albertel 1703: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1704: $currentstring = $token->[4];
1705: } elsif ($target eq 'tex') {
1706: $currentstring = " \\begin{itemize} ";
1707: }
1708: return $currentstring;
1709: }
1710:
1711: sub end_menu {
1712: my ($target,$token) = @_;
1713: my $currentstring = '';
1.325 albertel 1714: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1715: $currentstring = $token->[2];
1716: } elsif ($target eq 'tex') {
1717: $currentstring = " \\end{itemize}";
1718: }
1719: return $currentstring;
1720: }
1721:
1.181 sakharuk 1722: #-- <dir> tag (end tag required)
1.122 albertel 1723: sub start_dir {
1724: my ($target,$token) = @_;
1.279 foxr 1725: my $currentstring = &end_p(); # In case there's a <p> prior to the list.
1.325 albertel 1726: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1727: $currentstring .= $token->[4];
1.122 albertel 1728: } elsif ($target eq 'tex') {
1.277 foxr 1729: $currentstring .= " \\begin{itemize} ";
1.122 albertel 1730: }
1731: return $currentstring;
1732: }
1733:
1734: sub end_dir {
1735: my ($target,$token) = @_;
1736: my $currentstring = '';
1.325 albertel 1737: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1738: $currentstring = $token->[2];
1739: } elsif ($target eq 'tex') {
1740: $currentstring = " \\end{itemize}";
1741: }
1742: return $currentstring;
1743: }
1744:
1.181 sakharuk 1745: #-- <ol> tag (end tag required)
1.122 albertel 1746: sub start_ol {
1.125 sakharuk 1747: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1748: my $currentstring = &end_p(); # In case there's a <p> prior to the list.
1.325 albertel 1749: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1750: $currentstring .= $token->[4];
1.122 albertel 1751: } elsif ($target eq 'tex') {
1.238 albertel 1752: $Apache::londefdef::list_index=0;
1.125 sakharuk 1753: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1754: if ($type eq '1') {
1.222 sakharuk 1755: $currentstring .= '\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1756: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1757: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1758: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}';
1.125 sakharuk 1759: } elsif ($type eq 'A') {
1.222 sakharuk 1760: $currentstring .= '\renewcommand{\labelenumi}{\Alph{enumi}.}'.
1761: '\renewcommand{\labelenumii}{\Alph{enumii}.}'.
1762: '\renewcommand{\labelenumiii}{\Alph{enumiii}.}'.
1763: '\renewcommand{\labelenumiv}{\Alph{enumiv}.}';
1.125 sakharuk 1764: } elsif ($type eq 'a') {
1.222 sakharuk 1765: $currentstring .= '\renewcommand{\labelenumi}{\alph{enumi}.}'.
1766: '\renewcommand{\labelenumii}{\alph{enumii}.}'.
1767: '\renewcommand{\labelenumiii}{\alph{enumiii}.}'.
1768: '\renewcommand{\labelenumiv}{\alph{enumiv}.}';
1.125 sakharuk 1769: } elsif ($type eq 'i') {
1.222 sakharuk 1770: $currentstring .= '\renewcommand{\labelenumi}{\roman{enumi}.}'.
1771: '\renewcommand{\labelenumii}{\roman{enumii}.}'.
1772: '\renewcommand{\labelenumiii}{\roman{enumiii}.}'.
1773: '\renewcommand{\labelenumiv}{\roman{enumiv}.}';
1.125 sakharuk 1774: } elsif ($type eq 'I') {
1.222 sakharuk 1775: $currentstring .= '\renewcommand{\labelenumi}{\Roman{enumi}.}'.
1776: '\renewcommand{\labelenumii}{\Roman{enumii}.}'.
1777: '\renewcommand{\labelenumiii}{\Roman{enumiii}.}'.
1778: '\renewcommand{\labelenumiv}{\Roman{enumiv}.}';
1.125 sakharuk 1779: }
1.222 sakharuk 1780: $currentstring .= '\strut \begin{enumerate}';
1.122 albertel 1781: }
1782: return $currentstring;
1783: }
1784:
1785: sub end_ol {
1786: my ($target,$token) = @_;
1787: my $currentstring = '';
1.325 albertel 1788: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1789: $currentstring = $token->[2];
1790: } elsif ($target eq 'tex') {
1.222 sakharuk 1791: $currentstring = '\end{enumerate}\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1792: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1793: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1794: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}\strut ';
1.122 albertel 1795: }
1796: return $currentstring;
1797: }
1798:
1.181 sakharuk 1799: #-- <dl> tag (end tag required)
1.122 albertel 1800: sub start_dl {
1801: my ($target,$token) = @_;
1.279 foxr 1802: my $currentstring = &end_p(); # In case there's a <p> unclosed prior to the list.
1.325 albertel 1803: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1804: $currentstring .= $token->[4];
1.122 albertel 1805: } elsif ($target eq 'tex') {
1.277 foxr 1806: $currentstring .= '\begin{description}';
1.243 albertel 1807: $Apache::londefdef::DL++;
1808: push(@Apache::londefdef::description,[]);
1809: $Apache::londefdef::DD[$Apache::londefdef::DL]=0;
1810: $Apache::londefdef::DT[$Apache::londefdef::DL]=0;
1.244 albertel 1811: $Apache::londefdef::seenDT[$Apache::londefdef::DL]=0;
1.122 albertel 1812: }
1813: return $currentstring;
1814: }
1815:
1816: sub end_dl {
1.174 sakharuk 1817: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1818: my $currentstring = '';
1.325 albertel 1819: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1820: $currentstring = $token->[2];
1821: } elsif ($target eq 'tex') {
1.243 albertel 1822: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1823: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
1824: foreach my $element (@{$Apache::londefdef::description[-1]}) {
1.174 sakharuk 1825: $currentstring.=' '.$element.' ';
1826: }
1.243 albertel 1827: pop(@Apache::londefdef::description);
1.174 sakharuk 1828: $currentstring.='\end{description}';
1.243 albertel 1829: delete($Apache::londefdef::DD[$Apache::londefdef::DL]);
1830: delete($Apache::londefdef::DT[$Apache::londefdef::DL]);
1.244 albertel 1831: delete($Apache::londefdef::seenDT[$Apache::londefdef::DL]);
1.243 albertel 1832: $Apache::londefdef::DL--;
1.122 albertel 1833: }
1834: return $currentstring;
1835: }
1836:
1.172 sakharuk 1837: #-- <dt> tag (end tag optional)
1.122 albertel 1838: sub start_dt {
1.172 sakharuk 1839: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1840: my $currentstring='';
1.325 albertel 1841: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1842: $currentstring = $token->[4];
1843: } elsif ($target eq 'tex') {
1.243 albertel 1844: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1845: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
1.174 sakharuk 1846: &Apache::lonxml::startredirection();
1.243 albertel 1847: $Apache::londefdef::DT[-1]++;
1.244 albertel 1848: $Apache::londefdef::seenDT[-1]=1;
1.122 albertel 1849: }
1850: return $currentstring;
1851: }
1852:
1853: sub end_dt {
1.172 sakharuk 1854: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1855: my $currentstring = '';
1.325 albertel 1856: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1857: $currentstring = $token->[2];
1858: } elsif ($target eq 'tex') {
1.243 albertel 1859: if ($Apache::londefdef::DT[-1]) {
1860: my $data=&item_cleanup();
1.244 albertel 1861: push(@{$Apache::londefdef::description[-1]},'\item['.$data.'] \strut \vskip 0mm');
1.243 albertel 1862: $Apache::londefdef::DT[-1]--;
1863: }
1.122 albertel 1864: }
1865: return $currentstring;
1866: }
1867:
1.173 sakharuk 1868: sub item_cleanup {
1.174 sakharuk 1869: my $item=&Apache::lonxml::endredirection();
1.173 sakharuk 1870: $item=~s/\\begin{center}//g;
1871: $item=~s/\\end{center}//g;
1872: return $item;
1873: }
1874:
1.181 sakharuk 1875: #-- <dd> tag (end tag optional)
1.122 albertel 1876: sub start_dd {
1.147 sakharuk 1877: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1878: my $currentstring = '';
1.325 albertel 1879: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1880: $currentstring = $token->[4];
1.147 sakharuk 1881: } elsif ($target eq 'tex') {
1.243 albertel 1882: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1883: if ($Apache::londefdef::DD[-1]) { &end_dd(@_);}
1.244 albertel 1884: if (!$Apache::londefdef::seenDT[-1]) {
1885: push(@{$Apache::londefdef::description[-1]},'\item[\strut] \strut \vskip 0mm ');
1886: }
1.243 albertel 1887: push(@{$Apache::londefdef::description[-1]},'');
1888: $Apache::londefdef::description[-1]->[-1].=' \strut ';
1889: $Apache::londefdef::DD[-1]++;
1.174 sakharuk 1890: &Apache::lonxml::startredirection();
1.122 albertel 1891: }
1892: return $currentstring;
1893: }
1894:
1895: sub end_dd {
1.174 sakharuk 1896: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1897: my $currentstring = '';
1.325 albertel 1898: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1899: $currentstring = $token->[2];
1.174 sakharuk 1900: } elsif ($target eq 'tex') {
1.243 albertel 1901: $Apache::londefdef::description[-1]->[-1].=
1902: &Apache::lonxml::endredirection().' \vskip 0mm ';
1903: $Apache::londefdef::DD[-1]--;
1.174 sakharuk 1904: }
1.122 albertel 1905: return $currentstring;
1906: }
1907:
1.181 sakharuk 1908: #-- <table> tag (end tag required)
1.277 foxr 1909: # <table> also ends any prior <p> that is not closed.
1910: # but, unless I allow <p>'s to nest, that's the
1911: # only way I could think of to allow <p> in
1912: # <tr> <th> bodies
1913: #
1.206 sakharuk 1914: #list of supported attributes: border,width,TeXwidth
1.91 sakharuk 1915: sub start_table {
1916: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 foxr 1917: my $textwidth = '';
1.279 foxr 1918: my $currentstring = &end_p();
1.325 albertel 1919: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1920: $currentstring .= $token->[4];
1.91 sakharuk 1921: } elsif ($target eq 'tex') {
1.344 albertel 1922: push(@Apache::londefdef::table, {});
1.91 sakharuk 1923: $Apache::londefdef::table[-1]{'row_number'} = -1;
1.222 sakharuk 1924: #maximum table's width (default coincides with text line length)
1.206 sakharuk 1925: if ($#Apache::londefdef::table==0) {
1.267 albertel 1926: $textwidth=&recalc($env{'form.textwidth'}); #result is always in mm
1.206 sakharuk 1927: $textwidth=~/(\d+\.?\d*)/;
1928: $textwidth=0.95*$1; #accounts "internal" LaTeX space for table frame
1929: } else {
1930: if ($Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}]=~/\d/) {
1931: #the maximum width of nested table is determined by LATeX width of parent cell
1932: $textwidth=$Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}];
1933: } else {
1934: #try to use all space not used before (minus 5% for LaTeX table internal) - rather silly
1.228 sakharuk 1935: $textwidth=$Apache::londefdef::table[-2]{'width'};
1.206 sakharuk 1936: for (my $i=0;$i<$Apache::londefdef::table[-2]{'counter_columns'};$i++) {
1937: $textwidth=$textwidth-$Apache::londefdef::table[-2]{'TeXlen'}[0][$i];
1938: }
1939: }
1940: }
1.294 foxr 1941:
1942: # width either comes forced from the TeXwidth or the width parameters.
1943: # in either case it can be a percentage or absolute width.
1.311 albertel 1944: # in the width case we ignore absolute width
1.126 sakharuk 1945: my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1.308 albertel 1946: if (!defined($TeXwidth)) {
1.311 albertel 1947: my $htmlwidth = &Apache::lonxml::get_param('width',$parstack,
1948: $safeeval,undef,1);
1949: if ($htmlwidth =~ /%/) {
1950: $TeXwidth = $htmlwidth;
1951: } else {
1952: $TeXwidth = $textwidth;
1953: }
1.294 foxr 1954: } else {
1955: $Apache::londefdef::table[-1]{'forcedtablewidth'} = 1;
1956: }
1957: if ($TeXwidth=~/%/) {
1.203 sakharuk 1958: $Apache::londefdef::table[-1]{'percent'}=1;
1.126 sakharuk 1959: $TeXwidth=~/(\d+)/;
1.206 sakharuk 1960: $Apache::londefdef::table[-1]{'width'}=$1*$textwidth/100;
1.126 sakharuk 1961: } else {
1.206 sakharuk 1962: $Apache::londefdef::table[-1]{'width'}=$TeXwidth;
1.316 foxr 1963: }
1964: # In the end, however the table width cannot be wider than $textwidth...
1965:
1966: if ($Apache::londefdef::table[-1]{'width'} > $textwidth) {
1967: $Apache::londefdef::table[-1]{'width'} = $textwidth;
1968: }
1.294 foxr 1969:
1.126 sakharuk 1970: #table's border
1.206 sakharuk 1971: my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval);
1.208 sakharuk 1972: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
1.91 sakharuk 1973: unless (defined $border) { $border = 0; }
1974: if ($border) {
1975: $Apache::londefdef::table[-1]{'hinc'} = '\hline ';
1976: $Apache::londefdef::table[-1]{'vinc'} = '&';
1977: $Apache::londefdef::table[-1]{'vvinc'} = '|';
1978: } else {
1979: $Apache::londefdef::table[-1]{'hinc'} = '';
1980: $Apache::londefdef::table[-1]{'vinc'} = '&';
1981: $Apache::londefdef::table[-1]{'vvinc'} = '';
1982: }
1.206 sakharuk 1983: if ($#Apache::londefdef::table==0) {
1.281 foxr 1984: # Note that \newline seems to destroy the alignment envs.
1985: # $Apache::londefdef::table[-1]{'output'}='\strut\newline\strut\setlength{\tabcolsep}{1 mm}';
1986: $Apache::londefdef::table[-1]{'output'}='\strut'.'\\\\'."\n".'\strut\setlength{\tabcolsep}{1 mm}';
1.206 sakharuk 1987: }
1988: $Apache::londefdef::table[-1]{'output'}.=' \noindent \begin{tabular} ';
1989: $Apache::londefdef::table[-1]{'TeXlen'}=[];
1990: $Apache::londefdef::table[-1]{'objectlen'}=[];
1.229 sakharuk 1991: $Apache::londefdef::table[-1]{'objectsignal'}=[];
1.206 sakharuk 1992: $Apache::londefdef::table[-1]{'maxlen'}=[];
1993: $Apache::londefdef::table[-1]{'minlen'}=[];
1994: $Apache::londefdef::table[-1]{'content'}=[];
1995: $Apache::londefdef::table[-1]{'align'}=[];
1.340 foxr 1996: $currentstring.=' \keephidden{NEW TABLE ENTRY}';
1.295 foxr 1997:
1.294 foxr 1998:
1999: }
1.91 sakharuk 2000: return $currentstring;
2001: }
1.122 albertel 2002:
2003: sub end_table {
2004: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2005: my $currentstring = '';
1.325 albertel 2006: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2007: $currentstring = $token->[2];
2008: } elsif ($target eq 'tex') {
2009: my $inmemory = '';
2010: my $output = '';
1.206 sakharuk 2011: my $WARNING='';
2012: #width of columns from TeXwidth attributes
1.294 foxr 2013:
1.206 sakharuk 2014: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2015: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2016: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]<$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn]) {
2017: $Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]=$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn];
2018: }
2019: }
2020: }
2021: #free space and number of empty columns
2022: my ($available_space,$empty_columns)=($Apache::londefdef::table[-1]{'width'},0);
1.228 sakharuk 2023: if ($#Apache::londefdef::table ne 0) {$available_space=0.9*$available_space;}
1.206 sakharuk 2024: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2025: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]==0) {
2026: $empty_columns++;
2027: } else {
2028: $available_space=$available_space-$Apache::londefdef::table[-1]{'TeXlen'}[0][$jn];
2029: }
2030: }
2031: #boundaries for contents columns
2032: my @min_len=();#columns can not be narrower
2033: my @max_len=();#maximum length of column
2034: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2035: my ($localmin,$localmax)=(0,0);
2036: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2037: if ($localmin<$Apache::londefdef::table[-1]{'minlen'}[$in][$jn]) {
2038: $localmin=$Apache::londefdef::table[-1]{'minlen'}[$in][$jn];
2039: }
2040: if ($localmax<$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn]) {
2041: $localmax=$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn];
2042: }
2043: }
2044: push @min_len, $localmin;
2045: push @max_len, $localmax;
1.122 albertel 2046: }
1.206 sakharuk 2047: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2048: my $localmin=0,;
2049: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2050: if ($localmin<$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn]) {
2051: $localmin=$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn];
2052: }
2053: }
1.229 sakharuk 2054: if ($max_len[$jn]<$localmin) {
2055: $max_len[$jn]=$localmin;
2056: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
2057: }#object size is bigger
2058: if ($min_len[$jn]<$localmin) {
2059: $min_len[$jn]=$localmin;
2060: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
2061: }#object size is bigger
1.206 sakharuk 2062: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]!=0) {
2063: $min_len[$jn]=0;
2064: $max_len[$jn]=0;
2065: }
2066: }
2067: #final adjustment of column width
2068: my @fwidth=@{$Apache::londefdef::table[-1]{'TeXlen'}[0]};#final width array
2069: my @adjust=();
2070: #step 1. adjustment by maximum value
2071: my $space_neeeded=0;
2072: for (my $jn=0;$jn<=$#max_len;$jn++) {
2073: $space_neeeded=$space_neeeded+$max_len[$jn];
2074: }
2075: if ($space_neeeded<=$available_space) {
2076: for (my $jn=0;$jn<=$#max_len;$jn++) {
2077: if ($fwidth[$jn]==0) {
2078: $fwidth[$jn]=$max_len[$jn];
1.53 sakharuk 2079: }
1.51 sakharuk 2080: }
1.206 sakharuk 2081: } else {
2082: #step 2. adjustment by minimum value (estimation)
2083: $space_neeeded=0;
2084: for (my $jn=0;$jn<=$#min_len;$jn++) {
2085: $space_neeeded+=$min_len[$jn];
2086: }
2087: if ($space_neeeded>$available_space) {
2088: $WARNING=' \textbf{NOT ENOUGH SPACE FOR TABLE} ';
2089: for (my $jn=0;$jn<=$#max_len;$jn++) {
2090: if ($fwidth[$jn]==0) {
2091: $fwidth[$jn]=$min_len[$jn];
2092: }
2093: }
1.229 sakharuk 2094: #check if we have objects which can be scaled
2095: my $how_many_to_scale=0;
2096: my @to_scale=();
2097: for (my $jn=0;$jn<=$#max_len;$jn++) {
2098: if ($Apache::londefdef::table[-1]{'objectsignal'}[$jn] eq '1') {
2099: $how_many_to_scale++;
2100: push @to_scale, $jn;
2101: }
2102: }
2103: if ($how_many_to_scale>0) {
2104: my $space_to_adjust=($space_neeeded-$available_space)/$how_many_to_scale;
2105: foreach my $jn (@to_scale) {
2106: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2107: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/;
2108: if ($1 ne '') {
2109: my $current_length=&recalc($1);
2110: $current_length=~/(\d+\.?\d*)/;
2111: $current_length=$current_length-$space_to_adjust;
2112: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/width=$current_length mm/;
2113: }
2114: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/\[(\d+\.?\d*)\s*mm\]/;
2115: if ($1 ne '') {
2116: my $current_length=$1;
2117: $current_length=$current_length-$space_to_adjust;
2118: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/\[(\d+\.?\d*)\s*mm\]/\[$current_length mm\]/;
2119: }
2120: }
2121: $fwidth[$jn]=$fwidth[$jn]-$space_to_adjust;
2122: }
2123: }
1.206 sakharuk 2124: } else {
2125: #step 3. adjustment over minimal + corrections
2126: my $enlarge_coef=$available_space/$space_neeeded;
2127: my $acsessive=0;
2128: for (my $jn=0;$jn<=$#min_len;$jn++) {
2129: $adjust[$jn]=$min_len[$jn]*$enlarge_coef;
2130: if ($adjust[$jn]>$max_len[$jn]) {
2131: $fwidth[$jn]=$max_len[$jn];
2132: $acsessive=$acsessive+$adjust[$jn]-$max_len[$jn];
2133: $adjust[$jn]=0;
2134: }
2135: }
2136: if ($acsessive>0) {
2137: #we have an excess of space and can redistribute it
2138: my $notempty_columns=0;
2139: for (my $jn=0;$jn<=$#min_len;$jn++) {
2140: if ($adjust[$jn]!=0) {
2141: $notempty_columns++;
2142: }
2143: }
2144: my $per_column=$acsessive/$notempty_columns;
2145: for (my $jn=0;$jn<=$#min_len;$jn++) {
2146: if ($adjust[$jn]!=0) {
2147: $adjust[$jn]+=$per_column;
2148: $fwidth[$jn]=$adjust[$jn];
2149: }
1.223 sakharuk 2150: }
2151: } else {
2152: for (my $jn=0;$jn<=$#min_len;$jn++) {
2153: $fwidth[$jn]=$adjust[$jn];
1.206 sakharuk 2154: }
2155: }
1.203 sakharuk 2156: }
2157: }
1.222 sakharuk 2158: #use all available width if it is defined in % or as TeXwidth
2159: if (($Apache::londefdef::table[-1]{'percent'}==1) || ($Apache::londefdef::table[-1]{'forcetablewidth'}==1)) {
1.203 sakharuk 2160: my $current=0;
1.206 sakharuk 2161: for (my $i=0;$i<=$#fwidth;$i++) {
2162: $current+=$fwidth[$i];
1.203 sakharuk 2163: }
2164: my $coef=$Apache::londefdef::table[-1]{'width'}/$current;
1.206 sakharuk 2165: for (my $i=0;$i<=$#fwidth;$i++) {
2166: $fwidth[$i]*=$coef;
2167: }
2168: }
2169: #removing of empty columns if allowed
1.208 sakharuk 2170: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
1.206 sakharuk 2171: if ($permission eq 'yes') {
2172: my @cleaned_table=();
2173: my @cleaned_header=();
2174: my $colind=0;
2175: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2176: if ($fwidth[$jn]!=0) {
2177: #we need to copy column
2178: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2179: $cleaned_table[$in][$colind]=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
2180: $cleaned_header[$colind]=$fwidth[$jn];
2181: }
2182: $colind++;
2183: }
1.122 albertel 2184: }
1.206 sakharuk 2185: $Apache::londefdef::table[-1]{'content'}=\@cleaned_table;
2186: @fwidth=@cleaned_header;
1.122 albertel 2187: }
1.206 sakharuk 2188: #construct header of the table
2189: my $header_of_table = '{'.$Apache::londefdef::table[-1]{'vvinc'};
2190: for (my $in=0;$in<=$#fwidth;$in++) {
2191: $header_of_table.='p{'.$fwidth[$in].' mm}'.$Apache::londefdef::table[-1]{'vvinc'};
2192: }
2193: $header_of_table .= '}';
1.126 sakharuk 2194: #fill the table
2195: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1.306 foxr 2196: my $have_rowspan = 0;
1.206 sakharuk 2197: for (my $jn=0;$jn<=$#fwidth;$jn++) {
1.320 foxr 2198:
2199: #-----------------------------------------------------------
2200: # I think this order of doing things will ensure that
2201: # single rowspan, columspan and combined row/colspans will
2202: # work correctly. LaTeX is delicate here.
2203: # RF.
1.356 ! foxr 2204:
1.320 foxr 2205: # Start a rowspan if necessary:
1.356 ! foxr 2206:
! 2207: my $primary_col_width = $fwidth[$jn]; # Width of primary column.
1.320 foxr 2208: my $rowspan = $Apache::londefdef::table[-1]{'rowspan'}[$in][$jn];
2209: my $colspan = $Apache::londefdef::table[-1]{'colspan'}[$in][$jn];
1.304 foxr 2210: #
2211: # Do the appropriate magic if this has a colspan
2212: #
1.356 ! foxr 2213:
! 2214: my $spanwidth = 0;
1.304 foxr 2215: if ($colspan > 1) {
1.336 foxr 2216: for (my $spancol = $jn; $spancol < $jn + $colspan; $spancol++) {
2217: $spanwidth += $fwidth[$spancol];
2218: }
1.304 foxr 2219: $output .= '\multicolumn{'.
2220: $colspan
1.337 foxr 2221: ."}";
2222: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
2223: $output .= '{|c|}{';
2224: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
2225: $output .= '{|r|}{';
2226: }
2227: else {
2228: $output .= "{|p{$spanwidth mm}|}{";
2229: }
1.356 ! foxr 2230:
! 2231: } else {
! 2232: $spanwidth = $primary_col_width; # If no span width will be just colwidth
1.304 foxr 2233: }
1.306 foxr 2234:
1.337 foxr 2235: # Rowspan... if colspan is 1, and there's an alignment we'll need
2236: # to kick in a multicolumn in order to get the alignment spec.
2237: # this must precede the multirow or LaTex gets quite upset.
2238: # Naturally if colspan > 1 we've already done that above ^
2239: #
2240: my $multirow_aligned = 0;
1.306 foxr 2241: if ($rowspan > 1) {
1.337 foxr 2242: if ($colspan == 1) {
2243: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
2244: $output .= '\multicolumn{1}{|c|}{';
2245: $multirow_aligned = 1;
2246: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
2247: $output .= '\multicolumn{1}{|r|}{';
2248: $multirow_aligned = 1;
2249: }
2250: }
1.306 foxr 2251: $have_rowspan++;
1.356 ! foxr 2252: if ($multirow_aligned) {
! 2253: $output .= '\multirow{'.$rowspan.'}[0]{*}{';
! 2254: } else {
! 2255: $output .= '\multirow{'.$rowspan."}[0]{$spanwidth mm}{";
! 2256: }
1.350 albertel 2257:
2258: $Apache::londefdef::table[-1]{'content'}[$in][$jn] =~
2259: s{^\s*\\par\s*}{};
2260: $Apache::londefdef::table[-1]{'content'}[$in][$jn] =~
2261: s{\s*\\vskip\s*0pt\s*$}{};
1.356 ! foxr 2262:
1.337 foxr 2263: #
2264: # If we did not throw in a multicolumn to align, then add
2265: # an extra {
2266: # so we close correctly without having to keep additional state
2267: # around
2268: #
2269: if (!$multirow_aligned) {
2270: $output .= '{';
2271: }
1.306 foxr 2272: }
2273: if (($rowspan eq '^') || ($rowspan eq '_')) {
2274: $have_rowspan++;
2275: }
1.356 ! foxr 2276: #--------------------------------------------------------------
1.306 foxr 2277:
1.337 foxr 2278:
2279: # For right and center alignment of single cells.
2280: # we are going to use a multicolumn with a span of 1 to specify alignment.
2281: #
2282: if ($colspan == 1 && $rowspan == 1) {
2283: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
2284: $output .= '\multicolumn{1}{|c|}{';
2285: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
2286: $output .= '\multicolumn{1}{|r|}{';
2287: }
1.206 sakharuk 2288: }
1.337 foxr 2289:
1.206 sakharuk 2290: $output.=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
1.337 foxr 2291:
2292: if (($colspan == 1 && $rowspan == 1) &&
2293: (($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') ||
2294: ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r'))) {
2295: $output .= '}';
1.206 sakharuk 2296: }
1.337 foxr 2297:
1.306 foxr 2298: # Close off any open multirow:
2299:
2300: if ($rowspan > 1) {
1.337 foxr 2301: $output .= '}}';
1.306 foxr 2302: }
1.304 foxr 2303: # Close off the colspan...
2304: #
2305: if ($colspan > 1) {
2306: $output .= '}';
2307: $jn += $colspan-1; # Adjust for number of rows really left.
2308: }
1.206 sakharuk 2309: if ($jn!=$#fwidth) {$output.=' '.$Apache::londefdef::table[-1]{'vinc'};}
2310: }
1.306 foxr 2311: # If have_rowspan > 0, and borders are on, then
2312: # we need to do more than put an \hline at the bottom of row.
2313: # we need to do the appropriate \cline to ensure that
2314: # the spanned rows don't have \hlines through them.
2315:
2316: if (($Apache::londefdef::table[-1]{'hinc'} =~ /\\hline/) && $have_rowspan) {
2317: $output .= ' \\\\ ';
2318: for (my $jn=0; $jn<=$#fwidth;$jn++) {
2319: my $rowspan = $Apache::londefdef::table[-1]{'rowspan'}[$in][$jn];
1.320 foxr 2320: if ($rowspan ne "^") {
2321: if (($rowspan <= 1) || ($rowspan eq '_')) {
2322: my $column = $jn+1;
2323: $output .= '\cline{'.$column.'-'.$column.'} ';
2324: }
1.306 foxr 2325: }
2326: }
2327:
2328: } else {
2329: $output.=' \\\\ '.$Apache::londefdef::table[-1]{'hinc'}.' ';
2330: }
1.122 albertel 2331: }
1.281 foxr 2332: # Note that \newline destroys alignment env's produced by e.g. <div>
2333: # $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut\newline\strut ';
2334: $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut'.'\\\\'."\n".'\strut ';
1.127 sakharuk 2335: if ($#Apache::londefdef::table > 0) {
2336: my $inmemory = $Apache::londefdef::table[-1]{'output'};
1.294 foxr 2337: # Figure out max/and min width by summing us and then
2338: # apply that to the current column of the table we nest in
2339: # if it's larger than the current width or the current width
2340: # is undefined.
2341: #
2342: my $min_nested_width = 0;
2343: my $max_nested_width = 0;
2344: for (my $col = 0; $col <= $Apache::londefdef::table[-1]{'counter_columns'}; $col++) {
2345: $min_nested_width += $min_len[$col];
2346: $max_nested_width += $max_len[$col];
1.300 foxr 2347:
1.294 foxr 2348: }
2349: # Fudge in an extra 5 mm for borders etc:
2350:
2351: $min_nested_width += 5;
2352: $max_nested_width += 5;
2353:
2354: my $outer_column = $Apache::londefdef::table[-2]{'counter_columns'};
2355: my $outer_row = $Apache::londefdef::table[-2]{'row_number'};
2356: if ($min_nested_width > $Apache::londefdef::table[-2]{'minlen'}[$outer_row][$outer_column]) {
2357: $Apache::londefdef::table[-2]{'minlen'}[$outer_row][$outer_column] = $min_nested_width;
2358: }
2359: if ($max_nested_width > $Apache::londefdef::table[-2]{'maxlen'}[$outer_row][$outer_column]) {
2360: $Apache::londefdef::table[-2]{'maxlen'}[$outer_row][$outer_column] = $max_nested_width;
2361: }
2362:
1.127 sakharuk 2363: pop @Apache::londefdef::table;
1.129 sakharuk 2364: push @{$Apache::londefdef::table[-1]{'include'}}, $inmemory;
1.127 sakharuk 2365: } else {
2366: $currentstring .= $Apache::londefdef::table[-1]{'output'};
2367: pop @Apache::londefdef::table;
1.143 sakharuk 2368: undef @Apache::londefdef::table;
1.127 sakharuk 2369: }
1.122 albertel 2370: }
2371: return $currentstring;
2372: }
2373:
1.166 sakharuk 2374: #-- <tr> tag (end tag optional)
1.122 albertel 2375: sub start_tr {
2376: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2377: my $currentstring = '';
1.325 albertel 2378: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2379: $currentstring = $token->[4];
2380: } elsif ($target eq 'tex') {
2381: $Apache::londefdef::table[-1]{'row_number'}++;
1.206 sakharuk 2382: my $alignchar=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.122 albertel 2383: if ($alignchar ne '') {
1.206 sakharuk 2384: push @ {$Apache::londefdef::table[-1]{'rows'} },substr($alignchar,0,1);
1.122 albertel 2385: } else {
2386: push @ {$Apache::londefdef::table[-1]{'rows'} }, 'l';
2387: }
2388: push ( @{ $Apache::londefdef::table[-1]{'rowdata'} }, $Apache::londefdef::table[-1]{'hinc'});
1.300 foxr 2389: #
2390: # Need to save the number of table columns to preserve the max # columns.
2391: #
2392: $Apache::londefdef::table[-1]{'prior_columns'} = $Apache::londefdef::table[-1]{'counter_columns'};
1.122 albertel 2393: $Apache::londefdef::table[-1]{'counter_columns'} = -1;
1.206 sakharuk 2394: push @ {$Apache::londefdef::table[-1]{'TeXlen'}}, [];
2395: push @ {$Apache::londefdef::table[-1]{'objectlen'}}, [];
2396: push @ {$Apache::londefdef::table[-1]{'minlen'}}, [];
2397: push @ {$Apache::londefdef::table[-1]{'maxlen'}}, [];
2398: push @ {$Apache::londefdef::table[-1]{'content'}}, [];
1.122 albertel 2399: }
2400: return $currentstring;
2401: }
2402:
2403: sub end_tr {
1.160 sakharuk 2404: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 2405: my $currentstring = &end_p(); # Close any pending <p> in the row.
1.325 albertel 2406: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 2407: $currentstring .= $token->[2];
1.122 albertel 2408: } elsif ($target eq 'tex') {
1.160 sakharuk 2409: if ($Apache::londefdef::TD_redirection) {
2410: &end_td_tex($parstack,$parser,$safeeval);
2411: }
1.300 foxr 2412: # Counter columns must be the maximum number of columns seen
2413: # in the table so far so:
2414: if ($Apache::londefdef::table[-1]{'prior_columns'} > $Apache::londefdef::table[-1]{'counter_columns'}) {
2415: $Apache::londefdef::table[-1]{'counter_columns'} = $Apache::londefdef::table[-1]{'prior_columns'};
2416: }
1.295 foxr 2417:
2418:
1.294 foxr 2419:
1.122 albertel 2420: }
2421: return $currentstring;
2422: }
2423:
1.166 sakharuk 2424: #-- <td> tag (end tag optional)
1.122 albertel 2425: sub start_td {
2426: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2427: my $currentstring = '';
1.325 albertel 2428: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2429: $currentstring = $token->[4];
2430: } elsif ($target eq 'tex') {
1.160 sakharuk 2431: $Apache::londefdef::TD_redirection = 1;
1.159 sakharuk 2432: &tag_check('tr','td',$tagstack,$parstack,$parser,$safeeval);
1.122 albertel 2433: }
2434: return $currentstring;
2435: }
1.159 sakharuk 2436:
2437: sub tag_check {
2438: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
1.160 sakharuk 2439: my @ar=@$parstack;
2440: for (my $i=$#ar-1;$i>=0;$i--) {
2441: if (lc($$tagstack[$i]) eq $good_tag) {
2442: &start_td_tex($parstack,$parser,$safeeval);
2443: last;
2444: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2445: splice @ar, $i+1;
2446: &end_td_tex(\@ar,$parser,$safeeval);
2447: &start_td_tex($parstack,$parser,$safeeval);
2448: last;
1.159 sakharuk 2449: }
1.160 sakharuk 2450: }
1.159 sakharuk 2451: return '';
2452: }
2453:
2454: sub start_td_tex {
2455: my ($parstack,$parser,$safeeval) = @_;
1.206 sakharuk 2456: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2457: if ($alignchar eq '') {
2458: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
1.159 sakharuk 2459: }
1.206 sakharuk 2460: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
1.159 sakharuk 2461: $Apache::londefdef::table[-1]{'counter_columns'}++;
1.206 sakharuk 2462: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2463: if (defined $TeXwidth) {
2464: my $current_length=&recalc($TeXwidth);
2465: $current_length=~/(\d+\.?\d*)/;
2466: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2467: }
1.159 sakharuk 2468: &Apache::lonxml::startredirection();
2469: return '';
2470: }
2471:
2472: sub end_td_tex {
2473: my ($parstack,$parser,$safeeval) = @_;
1.304 foxr 2474: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2475: my $current_column = $Apache::londefdef::table[-1]{'counter_columns'};
1.303 foxr 2476: my $data = &Apache::lonxml::endredirection();
2477:
1.305 foxr 2478: # The rowspan array of the table indicates which cells are part of a span.
2479: # n indicates the start of a span set of n rows.
2480: # ^ indicates a cell that continues a span set.
1.306 foxr 2481: # _ indicates the cell is at the bottom of a span set.
1.305 foxr 2482: # If this and subsequent cells are part of a rowspan, we must
2483: # push along the row until we find one that is not.
2484:
2485: while ((defined $Apache::londefdef::table[-1]{'rowspan'}[$current_row] [$current_column])
1.306 foxr 2486: && ($Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column] =~ /[\^\_]/)) {
1.305 foxr 2487: # Part of a span.
2488: push @ {$Apache::londefdef::table[-1]{'content'}[-1]}, '';
2489: $current_column++;
2490: }
2491: $Apache::londefdef::table[-1]{'counter_columns'} = $current_column;
2492:
2493:
1.320 foxr 2494: # Get the column and row spans.
2495: # Colspan can be done via \multicolumn if I can figure out the data structs.
2496:
2497: my $colspan = &Apache::lonxml::get_param('colspan', $parstack, $safeeval, undef, 0);
2498: if (!$colspan) {
2499: $colspan = 1;
2500: }
1.305 foxr 2501:
2502: my $rowspan = &Apache::lonxml::get_param('rowspan', $parstack, $safeeval, undef, 0);
2503: if (!$rowspan) {
2504: $rowspan = 1;
2505: }
2506:
1.303 foxr 2507:
1.305 foxr 2508:
1.320 foxr 2509: for (my $c = 0; $c < $colspan; $c++) {
2510: $Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column+$c] = $rowspan;
2511: for (my $i = 1; $i < $rowspan; $i++) {
2512: $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column+$c] = '^';
2513: if ($i == ($rowspan-1)) {
2514: $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column+$c] = '_';
2515: }
1.306 foxr 2516: }
1.305 foxr 2517: }
1.304 foxr 2518:
1.159 sakharuk 2519: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2520: if (defined $TeXwidth) {
1.206 sakharuk 2521: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2522: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2523: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
1.159 sakharuk 2524: } else {
1.206 sakharuk 2525: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2526: my $garbage_data=$data;
2527: my $fwidth=0;
2528: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2529: my $current_length=&recalc($1);
2530: $current_length=~/(\d+\.?\d*)/;
2531: if ($fwidth<$1) {$fwidth=$1;}
2532: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2533: }
2534: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2535: my $current_length=$1;
2536: if ($fwidth<$current_length) {$fwidth=$current_length;}
2537: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2538: }
2539: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2540: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2541: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2542: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
1.231 sakharuk 2543: } elsif ($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)*/) {
2544: my $garbage_data=$data;
2545: my $fwidth=0;
2546: while ($garbage_data=~/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)\s*\}/) {
2547: my $current_length=&recalc($1);
2548: $current_length=~/(\d+\.?\d*)/;
2549: if ($fwidth<$1) {$fwidth=$1;}
2550: $garbage_data=~s/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2551: }
2552: while ($garbage_data=~/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2553: my $current_length=&recalc($1);
2554: $current_length=~/(\d+\.?\d*)/;
2555: if ($fwidth<$1) {$fwidth=$1;}
2556: $garbage_data=~s/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2557: }
2558: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2559: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2560: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2561: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2562: $data=~s/\\\\\s*$//;
1.159 sakharuk 2563: } else {
1.166 sakharuk 2564: $data=~s/^\s+(\S.*)/$1/;
1.159 sakharuk 2565: $data=~s/(.*\S)\s+$/$1/;
1.166 sakharuk 2566: $data=~s/(\s)+/$1/;
1.206 sakharuk 2567: my ($current_length,$min_length)=(0,0);
1.166 sakharuk 2568: if ($data=~/\\vskip/) {
2569: my $newdata=$data;
2570: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2571: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2572: foreach my $elementdata (@newdata) {
1.206 sakharuk 2573: my $lengthnewdata=2.5*&LATEX_length($elementdata);
1.166 sakharuk 2574: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
1.206 sakharuk 2575: my @words=split(/ /,$elementdata);
2576: foreach my $word (@words) {
2577: my $lengthword=2.5*&LATEX_length($word);
2578: if ($min_length<$lengthword) {$min_length=$lengthword;}
2579: }
1.166 sakharuk 2580: }
2581: } else {
1.206 sakharuk 2582: $current_length=2.5*&LATEX_length($data);
2583: my @words=split(/ /,$data);
2584: foreach my $word (@words) {
1.228 sakharuk 2585: my $lengthword=2*&LATEX_length($word);
1.206 sakharuk 2586: if ($min_length<$lengthword) {$min_length=$lengthword;}
2587: }
1.166 sakharuk 2588: }
1.206 sakharuk 2589: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2590: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2591: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2592: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
1.159 sakharuk 2593: }
2594: }
1.302 foxr 2595: # Substitute all of the tables nested in this cell in their appropriate places.
2596:
2597:
2598: my $nested_count = $#{$Apache::londefdef::table[-1]{'include'}}; # This one is constant...
2599: for (my $in=0; $in<=$nested_count; $in++) {
1.301 foxr 2600: my $nested = shift @{$Apache::londefdef::table[-1]{'include'}};
2601: $nested =~ s/\\end\{tabular\}\\strut\\\\/\\end\{tabular\}/;
2602: # $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2603: $data =~ s/\\keephidden\{NEW TABLE ENTRY\}/$nested/;
2604:
2605: }
2606: # Should be be killing off the 'include' elements as they're used up?
1.305 foxr 2607:
1.206 sakharuk 2608: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
1.305 foxr 2609:
1.304 foxr 2610:
2611:
2612:
2613: # the colspan array will indicate how many columns will be spanned by this
2614: # cell..this requires that counter_columns also be adjusted accordingly
2615: # so that the next bunch of text goes in the right cell. Note that since
2616: # counter_columns is incremented in the start_td_tex, we adjust by colspan-1.
2617: #
2618:
2619: $Apache::londefdef::table[-1]{'counter_columns'} += $colspan -1;
2620: for (my $i = 0; $i < ($colspan -1); $i++) {
2621: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },'';
2622: }
1.320 foxr 2623: for (my $r = 0; $r < $rowspan; $r++) {
2624: $Apache::londefdef::table[-1]{'colspan'}[$current_row+$r][$current_column] = $colspan;
2625: # Put empty text in spanned cols.
2626:
2627: }
2628:
1.304 foxr 2629:
2630:
1.301 foxr 2631: return '';
1.159 sakharuk 2632: }
2633:
1.122 albertel 2634: sub end_td {
1.126 sakharuk 2635: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 2636: my $currentstring = '';
1.325 albertel 2637: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2638: $currentstring = $token->[2];
2639: } elsif ($target eq 'tex') {
1.160 sakharuk 2640: $Apache::londefdef::TD_redirection =0;
1.159 sakharuk 2641: &end_td_tex($parstack,$parser,$safeeval);
1.122 albertel 2642: }
2643: return $currentstring;
2644: }
2645:
1.166 sakharuk 2646: #-- <th> tag (end tag optional)
1.122 albertel 2647: sub start_th {
2648: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2649: my $currentstring = '';
1.325 albertel 2650: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2651: $currentstring = $token->[4];
2652: } elsif ($target eq 'tex') {
1.230 sakharuk 2653: $Apache::londefdef::TD_redirection = 1;
2654: &tagg_check('tr','th',$tagstack,$parstack,$parser,$safeeval);
1.122 albertel 2655: }
2656: return $currentstring;
1.130 sakharuk 2657: }
1.230 sakharuk 2658:
2659: sub tagg_check {
2660: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
2661: my @ar=@$parstack;
2662: for (my $i=$#ar-1;$i>=0;$i--) {
2663: if (lc($$tagstack[$i]) eq $good_tag) {
2664: &start_th_tex($parstack,$parser,$safeeval);
2665: last;
2666: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2667: splice @ar, $i+1;
2668: &end_th_tex(\@ar,$parser,$safeeval);
2669: &start_th_tex($parstack,$parser,$safeeval);
2670: last;
2671: }
2672: }
2673: return '';
2674: }
2675:
2676: sub start_th_tex {
2677: my ($parstack,$parser,$safeeval) = @_;
2678: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2679: if ($alignchar eq '') {
2680: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
2681: }
2682: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
2683: $Apache::londefdef::table[-1]{'counter_columns'}++;
2684: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2685: if (defined $TeXwidth) {
2686: my $current_length=&recalc($TeXwidth);
2687: $current_length=~/(\d+\.?\d*)/;
2688: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2689: }
2690: &Apache::lonxml::startredirection();
2691: return '';
2692: }
2693:
2694: sub end_th_tex {
2695: my ($parstack,$parser,$safeeval) = @_;
2696: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2697: my $data=&Apache::lonxml::endredirection();
2698: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2699: if (defined $TeXwidth) {
2700: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2701: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2702: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2703: } else {
2704: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2705: my $garbage_data=$data;
2706: my $fwidth=0;
2707: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2708: my $current_length=&recalc($1);
2709: $current_length=~/(\d+\.?\d*)/;
2710: if ($fwidth<$1) {$fwidth=$1;}
2711: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2712: }
2713: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2714: my $current_length=$1;
2715: if ($fwidth<$current_length) {$fwidth=$current_length;}
2716: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2717: }
2718: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2719: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2720: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2721: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2722: } else {
2723: $data=~s/^\s+(\S.*)/$1/;
2724: $data=~s/(.*\S)\s+$/$1/;
2725: $data=~s/(\s)+/$1/;
2726: my ($current_length,$min_length)=(0,0);
2727: if ($data=~/\\vskip/) {
2728: my $newdata=$data;
2729: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2730: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2731: foreach my $elementdata (@newdata) {
2732: my $lengthnewdata=2.5*&LATEX_length($elementdata);
2733: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
2734: my @words=split(/ /,$elementdata);
2735: foreach my $word (@words) {
2736: my $lengthword=2.5*&LATEX_length($word);
2737: if ($min_length<$lengthword) {$min_length=$lengthword;}
2738: }
2739: }
2740: } else {
2741: $current_length=2.5*&LATEX_length($data);
2742: my @words=split(/ /,$data);
2743: foreach my $word (@words) {
2744: my $lengthword=2*&LATEX_length($word);
2745: if ($min_length<$lengthword) {$min_length=$lengthword;}
2746: }
2747: }
2748: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2749: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2750: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2751: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
2752: }
2753: }
2754: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
2755: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2756: }
2757: #make data bold
2758: $data='\textbf{'.$data.'}';
2759: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
2760: return'';
2761: }
2762:
1.122 albertel 2763: sub end_th {
1.130 sakharuk 2764: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 2765: my $currentstring = &end_p(); # Close any open <p> in the row.
1.325 albertel 2766: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 2767: $currentstring .= $token->[2];
1.122 albertel 2768: } elsif ($target eq 'tex') {
1.230 sakharuk 2769: $Apache::londefdef::TD_redirection =0;
2770: &end_th_tex($parstack,$parser,$safeeval);
1.122 albertel 2771: }
2772: return $currentstring;
2773: }
1.230 sakharuk 2774:
1.181 sakharuk 2775: #-- <img> tag (end tag forbidden)
1.249 foxr 2776: #
2777: # Render the <IMG> tag.
2778: # <IMG> has the following attributes (in addition to the
2779: # standard HTML ones:
2780: # TeXwrap - Governs how the tex target will try to wrap text around
2781: # horizontally aligned images.
2782: # TeXwidth - The width of the image when rendered for print (mm).
2783: # TeXheight - The height of the image when rendered for print (mm)
2784: # (Note there seems to also be support for this as a % of page size)
2785: #
1.122 albertel 2786: sub start_img {
1.299 albertel 2787: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 2788: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,
2789: undef,1);
1.325 albertel 2790: if (! $src &&
2791: ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex')
2792: ) {
1.299 albertel 2793: my $inside = &Apache::lonxml::get_all_text("/img",$parser,$style);
1.189 albertel 2794: return '';
2795: }
1.290 albertel 2796: &Apache::lonxml::extlink($src);
1.122 albertel 2797: my $currentstring = '';
2798: my $scaling = .3;
1.249 foxr 2799:
2800: # Render unto browsers that which are the browser's...
2801:
1.325 albertel 2802: if ($target eq 'web' || $target eq 'webgrade') {
1.267 albertel 2803: if ($env{'browser.imagesuppress'} ne 'on') {
1.322 albertel 2804: my $enc = ('yes' eq
2805: lc(&Apache::lonxml::get_param('encrypturl',$parstack,
2806: $safeeval)));
2807: $currentstring.=&Apache::lonenc::encrypt_ref($token,{'src'=>$src},
2808: $enc);
1.122 albertel 2809: } else {
1.322 albertel 2810: my $alttag = &Apache::lonxml::get_param('alt',$parstack,$safeeval,
2811: undef,1);
2812: if (!$alttag) {
2813: $alttag = &Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2814: $src);
1.51 sakharuk 2815: }
1.158 sakharuk 2816: $currentstring.='[IMAGE: '.$alttag.']';
1.1 sakharuk 2817: }
1.249 foxr 2818:
2819: # and render unto TeX that which is LaTeX
2820:
1.122 albertel 2821: } elsif ($target eq 'tex') {
1.248 foxr 2822: #
2823: # The alignment will require some superstructure to be put around
2824: # the \includegraphics stuff. At present we can only partially
2825: # simulate the alignments offered by html.
2826: #
2827: #
2828: my $align = lc(&Apache::lonxml::get_param('align',
2829: $parstack,
2830: $safeeval,
2831: undef,1));
2832: if(!$align) {
1.287 foxr 2833: $align = "bottom"; # This is html's default so it's ours too.
1.248 foxr 2834: }
2835: #
2836: &Apache::lonxml::debug("Alignemnt = $align");
2837: # LaTeX's image/text wrapping is really bad since it wants to
2838: # make figures float.
2839: # The user has the optional parameter (applicable only to l/r
2840: # alignment to use the picins/parpic directive to get wrapped text
2841: # this is also imperfect.. that's why we give them a choice...
2842: # so they can't yell at us for our choice.
2843: #
2844: my $latex_rendering = &Apache::lonxml::get_param('TeXwrap',
2845: $parstack,
2846: $safeeval,
2847: undef,0);
1.312 foxr 2848: # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering");
1.248 foxr 2849: if(!$latex_rendering) {
1.312 foxr 2850: $latex_rendering = "texwrap";
2851: }
2852: # using texwrap inside a table does not work. So, if after all of this,
2853: # texwrap is on, we turn it off if we detect we're in a table:
2854: #
2855: if (($latex_rendering eq 'texwrap') && &is_inside_of($tagstack, "table")) {
2856: $latex_rendering = 'parpic';
1.248 foxr 2857: }
1.323 foxr 2858:
1.312 foxr 2859: # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering image file: $src");
1.248 foxr 2860:
1.256 albertel 2861: #if original gif/jpg/png file exist do following:
1.266 albertel 2862: my $origsrc=$src;
1.256 albertel 2863: my ($path,$file) = &get_eps_image($src);
1.341 foxr 2864: # &Apache::lonnet::logthis("Image source: $src result: $path $file");
1.122 albertel 2865: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.261 foxr 2866: &Apache::lonxml::debug("path = $path file = $file src = $src");
1.192 sakharuk 2867: if (-e $src) {
1.261 foxr 2868: &Apache::lonxml::debug("$src exists");
1.256 albertel 2869: my ($height_param,$width_param)=
1.266 albertel 2870: &image_size($origsrc,0.3,$parstack,$safeeval);
2871: my $size;
2872: if ($width_param) { $size.='width='.$width_param.' mm,'; }
2873: if ($height_param) { $size.='height='.$height_param.' mm]'; }
1.341 foxr 2874: # Default size if not able to extract that (e.g. eps image).
2875:
2876: # &Apache::lonnet::logthis("Size = $size");
2877:
1.266 albertel 2878: $size='['.$size;
2879: $size=~s/,$/]/;
1.344 albertel 2880: $currentstring .= '\graphicspath{{'.$path.'}}'
2881: .'\includegraphics'.$size.'{'.$file.'} ';
1.354 foxr 2882: my $closure;
2883: ($currentstring, $closure) = &align_latex_image($align,
2884: $latex_rendering,
2885: $currentstring,
2886: $width_param,
2887: $height_param);
2888: $currentstring .= $closure;
1.353 foxr 2889:
1.122 albertel 2890: } else {
1.261 foxr 2891: &Apache::lonxml::debug("$src does not exist");
1.122 albertel 2892: #original image file doesn't exist so check the alt attribute
2893: my $alt =
2894: &Apache::lonxml::get_param('alt',$parstack,$safeeval,undef,1);
2895: unless ($alt) {
2896: $alt=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
2897: }
2898:
1.256 albertel 2899: if ($alt) { $currentstring .= ' '.$alt.' '; }
1.59 sakharuk 2900: }
1.249 foxr 2901:
2902: # And here's where the semi-quote breaks down: allow the user
2903: # to edit the beast as well by rendering the problem for edit:
1.186 albertel 2904: } elsif ($target eq 'edit') {
2905: $currentstring .=&Apache::edit::tag_start($target,$token);
2906: $currentstring .=&Apache::edit::text_arg('Image Url:','src',$token,70).
2907: &Apache::edit::browse('src',undef,'alt').' '.
2908: &Apache::edit::search('src',undef,'alt').'<br />';
2909: $currentstring .=&Apache::edit::text_arg('Description:','alt',$token,70).'<br />';
2910: $currentstring .=&Apache::edit::text_arg('width (pixel):','width',$token,5);
2911: $currentstring .=&Apache::edit::text_arg('height (pixel):','height',$token,5).'<br />';
2912: $currentstring .=&Apache::edit::text_arg('TeXwidth (mm):','TeXwidth',$token,5);
2913: $currentstring .=&Apache::edit::text_arg('TeXheight (mm):','TeXheight',$token,5);
1.234 albertel 2914: $currentstring .=&Apache::edit::select_arg('Alignment:','align',
2915: ['','bottom','middle','top','left','right'],$token,5);
1.249 foxr 2916: $currentstring .=&Apache::edit::select_arg('TeXwrap:', 'TeXwrap',
1.348 albertel 2917: ['', 'none','parbox', 'parpic', 'wrapfigure'], $token, 2);
1.332 www 2918: $currentstring .=&Apache::edit::select_arg('Encrypt URL:','encrypturl',
1.322 albertel 2919: ['no','yes'], $token, 2);
1.186 albertel 2920: $currentstring .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1.249 foxr 2921: my $src= &Apache::lonxml::get_param('src',$parstack,$safeeval);
2922: my $alt= &Apache::lonxml::get_param('alt',$parstack,$safeeval);
2923: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
2924: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
2925:
2926:
1.186 albertel 2927: $currentstring .= '<img src="'.$src.'" alt="'.$alt.'" ';
2928: if ($width) { $currentstring.=' width="'.$width.'" '; }
2929: if ($height) { $currentstring.=' height="'.$height.'" '; }
2930: $currentstring .= ' />';
2931: } elsif ($target eq 'modified') {
1.210 albertel 2932: my ($osrc,$owidth,$oheight)=
2933: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2934: my $ctag=&Apache::edit::get_new_args($token,$parstack,
1.234 albertel 2935: $safeeval,'src','alt','align',
1.249 foxr 2936: 'TeXwidth','TeXheight', 'TeXwrap',
1.322 albertel 2937: 'width','height','encrypturl');
1.210 albertel 2938: my ($nsrc,$nwidth,$nheight)=
2939: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2940: my $loc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$nsrc);
2941: &image_replication($loc);
2942: my ($iwidth,$iheight);
2943: if (-e $loc) {
2944: my $image = Image::Magick->new;
2945: $image->Read($loc);
2946: ($iwidth, $iheight) = ($image->Get('width'),
2947: $image->Get('height'));
2948: }
2949: if ($osrc ne $nsrc || (!$nwidth && !$nheight)) {
2950: # changed image or no size specified,
2951: # if they didn't explicitly change the
2952: # width or height use the ones from the image
2953: if ($iwidth && $iheight) {
2954: if ($owidth == $nwidth || (!$nwidth && !$nheight)) {
2955: $token->[2]{'width'} = $iwidth;$ctag=1;
2956: }
2957: if ($oheight == $nheight || (!$nwidth && !$nheight)) {
2958: $token->[2]{'height'}=$iheight;$ctag=1;
1.186 albertel 2959: }
2960: }
2961: }
1.210 albertel 2962: my ($cwidth,$cheight)=($token->[2]{'width'},$token->[2]{'height'});
2963: # if we don't have a width or height
2964: if ($iwidth && $cwidth && !$cheight) {
2965: $token->[2]{'height'}=int(($cwidth/$iwidth)*$iheight);$ctag=1;
2966: }
2967: if ($iheight && $cheight && !$cwidth) {
2968: $token->[2]{'width'}=int(($cheight/$iheight)*$iwidth);$ctag=1;
2969: }
2970: if ($ctag) {$currentstring=&Apache::edit::rebuild_tag($token);}
1.122 albertel 2971: }
1.261 foxr 2972:
1.122 albertel 2973: return $currentstring;
2974: }
2975:
2976: sub end_img {
2977: my ($target,$token) = @_;
2978: my $currentstring = '';
1.325 albertel 2979: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2980: $currentstring = $token->[2];
2981: } elsif ($target eq 'tex') {
2982: $currentstring = '';
2983: }
2984: return $currentstring;
2985: }
2986:
1.181 sakharuk 2987: #-- <applet> tag (end tag required)
1.122 albertel 2988: sub start_applet {
2989: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2990:
2991: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,undef,1);
1.290 albertel 2992: &Apache::lonxml::extlink($code);
1.122 albertel 2993: my $archive=&Apache::lonxml::get_param('archive',$parstack,$safeeval,
2994: undef,1);
1.290 albertel 2995: &Apache::lonxml::extlink($archive);
1.122 albertel 2996: my $currentstring = '';
1.325 albertel 2997: if ($target eq 'web' || $target eq 'webgrade') {
1.267 albertel 2998: if ($env{'browser.appletsuppress'} ne 'on') {
1.250 albertel 2999: $currentstring = &Apache::lonenc::encrypt_ref($token,
3000: {'code'=>$code,
3001: 'archive'=>$archive}
3002: );
1.122 albertel 3003: } else {
3004: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
3005: $safeeval,undef,1);
3006: unless ($alttag) {
3007: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
3008: $code);
1.44 sakharuk 3009: }
1.122 albertel 3010: $currentstring='[APPLET: '.$alttag.']';
1.1 sakharuk 3011: }
1.122 albertel 3012: } elsif ($target eq 'tex') {
1.177 albertel 3013: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
3014: $safeeval,undef,1);
3015: unless ($alttag) {
3016: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,
3017: undef,1);
3018: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
3019: $code);
1.175 sakharuk 3020: }
1.177 albertel 3021: $currentstring.='\begin{center} \fbox{Java Applet: '.$alttag.
3022: '.}\end{center}';
1.122 albertel 3023: }
3024: return $currentstring;
3025: }
3026:
3027: sub end_applet {
3028: my ($target,$token) = @_;
3029: my $currentstring = '';
1.325 albertel 3030: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3031: $currentstring = $token->[2];
3032: } elsif ($target eq 'tex') {
3033: }
3034: return $currentstring;
3035: }
3036:
1.181 sakharuk 3037: #-- <embed> tag (end tag optional/required)
1.122 albertel 3038: sub start_embed {
3039: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3040: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
1.290 albertel 3041: &Apache::lonxml::extlink($src);
1.122 albertel 3042: my $currentstring = '';
1.325 albertel 3043: if ($target eq 'web' || $target eq 'webgrade') {
1.267 albertel 3044: if ($env{'browser.embedsuppress'} ne 'on') {
1.250 albertel 3045: $currentstring=&Apache::lonenc::encrypt_ref($token,{'src'=>$src});
1.122 albertel 3046: } else {
3047: my $alttag=&Apache::lonxml::get_param
3048: ('alt',$parstack,$safeeval,undef,1);
3049: unless ($alttag) {
3050: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
1.42 albertel 3051: }
1.122 albertel 3052: $currentstring='[EMBED: '.$alttag.']';
1.10 www 3053: }
1.122 albertel 3054: } elsif ($target eq 'tex') {
3055: }
3056: return $currentstring;
3057: }
3058:
3059: sub end_embed {
3060: my ($target,$token) = @_;
3061: my $currentstring = '';
1.325 albertel 3062: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3063: $currentstring = $token->[2];
1.175 sakharuk 3064: } elsif ($target eq 'tex') {
1.122 albertel 3065: }
3066: return $currentstring;
3067: }
3068:
1.181 sakharuk 3069: #-- <param> tag (end tag forbidden)
1.122 albertel 3070: sub start_param {
3071: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.290 albertel 3072: if (&Apache::lonxml::get_param('name',$parstack,
3073: $safeeval,undef,1)=~/^cabbase$/i) {
3074: my $value=&Apache::lonxml::get_param('value',$parstack,
3075: $safeeval,undef,1);
3076: &Apache::lonxml::extlink($value);
3077: }
3078:
3079: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
3080: &Apache::lonxml::extlink($src);
1.122 albertel 3081: my $currentstring = '';
1.325 albertel 3082: if ($target eq 'web' || $target eq 'webgrade') {
1.250 albertel 3083: my %toconvert;
3084: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
3085: if ($src) { $toconvert{'src'}= $src; }
3086: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval,
3087: undef,1);
1.251 albertel 3088: if ($name=~/^cabbase$/i) {
3089: $toconvert{'value'}=&Apache::lonxml::get_param('value',$parstack,
3090: $safeeval,undef,1);
3091: }
1.250 albertel 3092: $currentstring = &Apache::lonenc::encrypt_ref($token,\%toconvert);
1.122 albertel 3093: } elsif ($target eq 'tex') {
3094: }
3095: return $currentstring;
3096: }
3097:
3098: sub end_param {
3099: my ($target,$token) = @_;
3100: my $currentstring = '';
1.325 albertel 3101: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3102: $currentstring = $token->[2];
3103: } elsif ($target eq 'tex') {
3104: }
3105: return $currentstring;
3106: }
3107:
3108: #-- <allow> tag
3109: sub start_allow {
3110: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3111: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
1.290 albertel 3112: &Apache::lonxml::extlink($src);
3113:
1.241 albertel 3114: if ($target eq 'tex') { &image_replication($src); }
1.122 albertel 3115: my $result;
3116: if ($target eq 'edit') {
3117: $result .=&Apache::edit::tag_start($target,$token);
3118: $result .=&Apache::edit::text_arg('File Spec:','src',$token,70);
3119: $result .=&Apache::edit::end_row();#.&Apache::edit::start_spanning_row();
3120: } elsif ($target eq 'modified') {
3121: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
3122: $safeeval,'src');
3123: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
3124: }
3125: return $result;
3126: }
3127:
3128: sub end_allow {
3129: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3130: if ( $target eq 'edit') { return (&Apache::edit::end_table()); }
3131: return '';
3132: }
1.119 www 3133:
1.181 sakharuk 3134: #-- Frames (end tag required)
3135: #-- <frameset>
1.122 albertel 3136: sub start_frameset {
3137: my ($target,$token) = @_;
1.277 foxr 3138: my $currentstring = ''; # Close any pending para.
1.325 albertel 3139: if ($target eq 'web' || $target eq 'webgrade') {
1.328 albertel 3140: $currentstring =
3141: &Apache::loncommon::start_page($Apache::londefdef::title,
3142: $Apache::londefdef::head,
3143: {'add_entries' => $token->[2],
3144: 'no_title' => 1,
3145: 'force_register' => 1,
3146: 'frameset' => 1,});
3147:
1.122 albertel 3148: }
3149: return $currentstring;
3150: }
3151:
3152: sub end_frameset {
3153: my ($target,$token) = @_;
3154: my $currentstring = '';
1.325 albertel 3155: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3156: $currentstring = $token->[2];
3157: }
3158: return $currentstring;
3159: }
1.162 sakharuk 3160:
1.181 sakharuk 3161: #-- <xmp> (end tag required)
1.162 sakharuk 3162: sub start_xmp {
3163: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3164: my $currentstring = '';
1.325 albertel 3165: if ($target eq 'web' || $target eq 'webgrade') {
1.162 sakharuk 3166: $currentstring .= $token->[4];
3167: } elsif ($target eq 'tex') {
3168: $currentstring .= '\begin{verbatim}';
3169: }
3170: return $currentstring;
3171: }
3172:
3173: sub end_xmp {
3174: my ($target,$token) = @_;
3175: my $currentstring = '';
1.325 albertel 3176: if ($target eq 'web' || $target eq 'webgrade') {
1.162 sakharuk 3177: $currentstring .= $token->[2];
3178: } elsif ($target eq 'tex') {
3179: $currentstring .= '\end{verbatim}';
3180: }
3181: return $currentstring;
3182: }
3183:
1.181 sakharuk 3184: #-- <pre> (end tag required)
1.122 albertel 3185: sub start_pre {
1.126 sakharuk 3186: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 3187: my $currentstring = &end_p(); # close off pending <p>
1.325 albertel 3188: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3189: $currentstring .= $token->[4];
3190: } elsif ($target eq 'tex') {
1.136 sakharuk 3191: $currentstring .= '\begin{verbatim}';
1.319 albertel 3192: &Apache::lonxml::disable_LaTeX_substitutions();
1.122 albertel 3193: }
3194: return $currentstring;
3195: }
3196:
3197: sub end_pre {
3198: my ($target,$token) = @_;
3199: my $currentstring = '';
1.325 albertel 3200: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3201: $currentstring .= $token->[2];
3202: } elsif ($target eq 'tex') {
1.136 sakharuk 3203: $currentstring .= '\end{verbatim}';
1.319 albertel 3204: &Apache::lonxml::enable_LaTeX_substitutions();
1.122 albertel 3205: }
3206: return $currentstring;
3207: }
3208:
3209: #-- <insert>
3210: sub start_insert {
3211: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3212: my $currentstring = '';
1.325 albertel 3213: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3214: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
3215: $currentstring .= '<b>'.$display.'</b>';;
3216: }
3217: return $currentstring;
3218: }
3219:
3220: sub end_insert {
3221: my ($target,$token) = @_;
3222: my $currentstring = '';
1.325 albertel 3223: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3224: $currentstring .= '';
3225: }
3226: return $currentstring;
3227: }
3228:
3229: #-- <externallink>
3230: sub start_externallink {
3231: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3232: my $currentstring = '';
1.325 albertel 3233: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3234: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
3235: $currentstring .= '<b>'.$display.'</b>';;
3236: }
3237: return $currentstring;
3238: }
3239:
3240: sub end_externallink {
3241: my ($target,$token) = @_;
3242: my $currentstring = '';
1.325 albertel 3243: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3244: $currentstring .= '';
3245: }
3246: return $currentstring;
3247: }
3248:
3249: #-- <blankspace heigth="">
3250: sub start_blankspace {
3251: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 3252: my $currentstring = &end_p(); # closes off any unclosed <p>
1.122 albertel 3253: if ($target eq 'tex') {
3254: my $howmuch = &Apache::lonxml::get_param('heigth',$parstack,$safeeval,undef,1);
3255: $currentstring .= '\vskip '.$howmuch.' ';
3256: }
3257: return $currentstring;
3258: }
3259:
3260: sub end_blankspace {
3261: my ($target,$token) = @_;
3262: my $currentstring = '';
3263: if ($target eq 'tex') {
3264: $currentstring .= '';
3265: }
3266: return $currentstring;
3267: }
3268:
1.181 sakharuk 3269: #-- <abbr> tag (end tag required)
1.122 albertel 3270: sub start_abbr {
3271: my ($target,$token) = @_;
3272: my $currentstring = '';
1.325 albertel 3273: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3274: $currentstring = $token->[4];
3275: }
3276: return $currentstring;
3277: }
3278:
3279: sub end_abbr {
3280: my ($target,$token) = @_;
3281: my $currentstring = '';
1.325 albertel 3282: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3283: $currentstring = $token->[2];
3284: }
3285: return $currentstring;
3286: }
3287:
1.181 sakharuk 3288: #-- <acronym> tag (end tag required)
1.122 albertel 3289: sub start_acronym {
3290: my ($target,$token) = @_;
3291: my $currentstring = '';
1.325 albertel 3292: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3293: $currentstring = $token->[4];
3294: }
3295: return $currentstring;
3296: }
3297:
3298: sub end_acronym {
3299: my ($target,$token) = @_;
3300: my $currentstring = '';
1.325 albertel 3301: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3302: $currentstring = $token->[2];
3303: }
3304: return $currentstring;
3305: }
3306:
1.181 sakharuk 3307: #-- <area> tag (end tag forbidden)
1.122 albertel 3308: sub start_area {
3309: my ($target,$token) = @_;
3310: my $currentstring = '';
1.325 albertel 3311: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3312: $currentstring = $token->[4];
3313: }
3314: return $currentstring;
3315: }
3316:
3317: sub end_area {
3318: my ($target,$token) = @_;
3319: my $currentstring = '';
1.325 albertel 3320: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3321: $currentstring = $token->[2];
3322: }
3323: return $currentstring;
3324: }
3325:
1.181 sakharuk 3326: #-- <base> tag (end tag forbidden)
1.122 albertel 3327: sub start_base {
3328: my ($target,$token) = @_;
3329: my $currentstring = '';
1.325 albertel 3330: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3331: $currentstring = $token->[4];
1.161 sakharuk 3332: }
1.122 albertel 3333: return $currentstring;
3334: }
3335:
3336: sub end_base {
3337: my ($target,$token) = @_;
3338: my $currentstring = '';
1.325 albertel 3339: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3340: $currentstring = $token->[2];
3341: }
3342: return $currentstring;
3343: }
3344:
1.181 sakharuk 3345: #-- <bdo> tag (end tag required)
1.122 albertel 3346: sub start_bdo {
3347: my ($target,$token) = @_;
3348: my $currentstring = '';
1.325 albertel 3349: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3350: $currentstring = $token->[4];
3351: }
3352: return $currentstring;
3353: }
3354:
3355: sub end_bdo {
3356: my ($target,$token) = @_;
3357: my $currentstring = '';
1.325 albertel 3358: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3359: $currentstring = $token->[2];
3360: }
3361: return $currentstring;
3362: }
3363:
1.181 sakharuk 3364: #-- <bgsound> tag (end tag optional)
1.122 albertel 3365: sub start_bgsound {
3366: my ($target,$token) = @_;
3367: my $currentstring = '';
1.325 albertel 3368: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3369: $currentstring = $token->[4];
3370: }
3371: return $currentstring;
3372: }
3373:
3374: sub end_bgsound {
3375: my ($target,$token) = @_;
3376: my $currentstring = '';
1.325 albertel 3377: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3378: $currentstring = $token->[2];
3379: }
3380: return $currentstring;
3381: }
3382:
1.181 sakharuk 3383: #-- <blink> tag (end tag required)
1.122 albertel 3384: sub start_blink {
3385: my ($target,$token) = @_;
3386: my $currentstring = '';
1.325 albertel 3387: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3388: $currentstring = $token->[4];
3389: }
3390: return $currentstring;
3391: }
3392:
3393: sub end_blink {
3394: my ($target,$token) = @_;
3395: my $currentstring = '';
1.325 albertel 3396: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3397: $currentstring = $token->[2];
3398: }
3399: return $currentstring;
3400: }
3401:
1.181 sakharuk 3402: #-- <blockquote> tag (end tag required)
1.122 albertel 3403: sub start_blockquote {
3404: my ($target,$token) = @_;
1.279 foxr 3405: my $currentstring = &end_p(); # Close any unclosed <p>
1.325 albertel 3406: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 3407: $currentstring .= $token->[4];
1.122 albertel 3408: }
1.339 foxr 3409: if ($target eq 'tex') {
3410: $currentstring .= '\begin{quote}';
3411: }
1.122 albertel 3412: return $currentstring;
3413: }
3414:
3415: sub end_blockquote {
3416: my ($target,$token) = @_;
3417: my $currentstring = '';
1.325 albertel 3418: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3419: $currentstring = $token->[2];
3420: }
1.339 foxr 3421: if ($target eq 'tex') {
3422: $currentstring = '\end{quote}';
3423: }
1.122 albertel 3424: return $currentstring;
3425: }
3426:
1.181 sakharuk 3427: #-- <button> tag (end tag required)
1.122 albertel 3428: sub start_button {
3429: my ($target,$token) = @_;
3430: my $currentstring = '';
1.325 albertel 3431: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3432: $currentstring = $token->[4];
3433: }
3434: return $currentstring;
3435: }
3436:
3437: sub end_button {
3438: my ($target,$token) = @_;
3439: my $currentstring = '';
1.325 albertel 3440: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3441: $currentstring = $token->[2];
3442: }
3443: return $currentstring;
3444: }
3445:
1.181 sakharuk 3446: #-- <caption> tag (end tag required)
1.122 albertel 3447: sub start_caption {
3448: my ($target,$token) = @_;
3449: my $currentstring = '';
1.325 albertel 3450: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3451: $currentstring = $token->[4];
3452: }
3453: return $currentstring;
3454: }
3455:
3456: sub end_caption {
3457: my ($target,$token) = @_;
3458: my $currentstring = '';
1.325 albertel 3459: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3460: $currentstring = $token->[2];
3461: }
3462: return $currentstring;
3463: }
3464:
1.181 sakharuk 3465: #-- <col> tag (end tag forbdden)
1.122 albertel 3466: sub start_col {
3467: my ($target,$token) = @_;
3468: my $currentstring = '';
1.325 albertel 3469: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3470: $currentstring = $token->[4];
3471: }
3472: return $currentstring;
3473: }
3474:
3475: sub end_col {
3476: my ($target,$token) = @_;
3477: my $currentstring = '';
1.325 albertel 3478: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3479: $currentstring = $token->[2];
3480: }
3481: return $currentstring;
3482: }
3483:
1.181 sakharuk 3484: #-- <colgroup> tag (end tag optional)
1.122 albertel 3485: sub start_colgroup {
3486: my ($target,$token) = @_;
3487: my $currentstring = '';
1.325 albertel 3488: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3489: $currentstring = $token->[4];
3490: }
3491: return $currentstring;
3492: }
3493:
3494: sub end_colgroup {
3495: my ($target,$token) = @_;
3496: my $currentstring = '';
1.325 albertel 3497: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3498: $currentstring = $token->[2];
3499: }
3500: return $currentstring;
3501: }
3502:
1.181 sakharuk 3503: #-- <del> tag (end tag required)
1.122 albertel 3504: sub start_del {
3505: my ($target,$token) = @_;
3506: my $currentstring = '';
1.325 albertel 3507: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3508: $currentstring = $token->[4];
3509: }
3510: return $currentstring;
3511: }
3512:
3513: sub end_del {
3514: my ($target,$token) = @_;
3515: my $currentstring = '';
1.325 albertel 3516: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3517: $currentstring = $token->[2];
3518: }
3519: return $currentstring;
3520: }
3521:
1.181 sakharuk 3522: #-- <fieldset> tag (end tag required)
1.122 albertel 3523: sub start_fieldset {
3524: my ($target,$token) = @_;
3525: my $currentstring = '';
1.325 albertel 3526: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3527: $currentstring = $token->[4];
3528: }
3529: return $currentstring;
3530: }
3531:
3532: sub end_fieldset {
3533: my ($target,$token) = @_;
3534: my $currentstring = '';
1.325 albertel 3535: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3536: $currentstring = $token->[2];
3537: }
3538: return $currentstring;
3539: }
3540:
1.181 sakharuk 3541: #-- <frame> tag (end tag forbidden)
1.122 albertel 3542: sub start_frame {
3543: my ($target,$token) = @_;
3544: my $currentstring = '';
1.325 albertel 3545: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3546: $currentstring = $token->[4];
3547: }
3548: return $currentstring;
3549: }
3550:
3551: sub end_frame {
3552: my ($target,$token) = @_;
3553: my $currentstring = '';
1.325 albertel 3554: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3555: $currentstring = $token->[2];
3556: }
3557: return $currentstring;
3558: }
3559:
1.181 sakharuk 3560: #-- <iframe> tag (end tag required)
1.122 albertel 3561: sub start_iframe {
3562: my ($target,$token) = @_;
3563: my $currentstring = '';
1.325 albertel 3564: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3565: $currentstring = $token->[4];
3566: }
3567: return $currentstring;
3568: }
3569:
3570: sub end_iframe {
3571: my ($target,$token) = @_;
3572: my $currentstring = '';
1.325 albertel 3573: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3574: $currentstring = $token->[2];
3575: }
3576: return $currentstring;
3577: }
3578:
1.181 sakharuk 3579: #-- <ins> tag (end tag required)
1.122 albertel 3580: sub start_ins {
3581: my ($target,$token) = @_;
3582: my $currentstring = '';
1.325 albertel 3583: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3584: $currentstring = $token->[4];
3585: }
3586: return $currentstring;
3587: }
3588:
3589: sub end_ins {
3590: my ($target,$token) = @_;
3591: my $currentstring = '';
1.325 albertel 3592: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3593: $currentstring = $token->[2];
3594: }
3595: return $currentstring;
3596: }
3597:
1.181 sakharuk 3598: #-- <isindex> tag (end tag forbidden)
1.122 albertel 3599: sub start_isindex {
3600: my ($target,$token) = @_;
3601: my $currentstring = '';
1.325 albertel 3602: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3603: $currentstring = $token->[4];
3604: }
3605: return $currentstring;
3606: }
3607:
3608: sub end_isindex {
3609: my ($target,$token) = @_;
3610: my $currentstring = '';
1.325 albertel 3611: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3612: $currentstring = $token->[2];
3613: }
3614: return $currentstring;
3615: }
3616:
1.181 sakharuk 3617: #-- <keygen> tag (end tag forbidden)
1.122 albertel 3618: sub start_keygen {
3619: my ($target,$token) = @_;
3620: my $currentstring = '';
1.325 albertel 3621: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3622: $currentstring = $token->[4];
3623: }
3624: return $currentstring;
3625: }
3626:
3627: sub end_keygen {
3628: my ($target,$token) = @_;
3629: my $currentstring = '';
1.325 albertel 3630: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3631: $currentstring = $token->[2];
3632: }
3633: return $currentstring;
3634: }
3635:
3636: #-- <label> tag
3637: sub start_label {
3638: my ($target,$token) = @_;
3639: my $currentstring = '';
1.325 albertel 3640: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3641: $currentstring = $token->[4];
3642: }
3643: return $currentstring;
3644: }
3645:
3646: sub end_label {
3647: my ($target,$token) = @_;
3648: my $currentstring = '';
1.325 albertel 3649: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3650: $currentstring = $token->[2];
3651: }
3652: return $currentstring;
3653: }
3654:
1.181 sakharuk 3655: #-- <layer> tag (end tag required)
1.122 albertel 3656: sub start_layer {
3657: my ($target,$token) = @_;
3658: my $currentstring = '';
1.325 albertel 3659: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3660: $currentstring = $token->[4];
3661: }
3662: return $currentstring;
3663: }
3664:
3665: sub end_layer {
3666: my ($target,$token) = @_;
3667: my $currentstring = '';
1.325 albertel 3668: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3669: $currentstring = $token->[2];
3670: }
3671: return $currentstring;
3672: }
3673:
1.181 sakharuk 3674: #-- <legend> tag (end tag required)
1.122 albertel 3675: sub start_legend {
3676: my ($target,$token) = @_;
3677: my $currentstring = '';
1.325 albertel 3678: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3679: $currentstring = $token->[4];
3680: }
3681: return $currentstring;
3682: }
3683:
3684: sub end_legend {
3685: my ($target,$token) = @_;
3686: my $currentstring = '';
1.325 albertel 3687: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3688: $currentstring = $token->[2];
3689: }
3690: return $currentstring;
3691: }
3692:
1.181 sakharuk 3693: #-- <link> tag (end tag forbidden)
1.122 albertel 3694: sub start_link {
1.292 albertel 3695: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 3696: my $currentstring = '';
1.324 albertel 3697: if ($target eq 'web' || $target eq 'webgrade') {
1.291 albertel 3698: my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
3699: undef,1);
3700: &Apache::lonxml::extlink($href);
1.122 albertel 3701: $currentstring = $token->[4];
3702: }
3703: return $currentstring;
3704: }
3705:
3706: sub end_link {
3707: my ($target,$token) = @_;
3708: my $currentstring = '';
1.325 albertel 3709: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3710: $currentstring = $token->[2];
3711: }
3712: return $currentstring;
3713: }
3714:
1.181 sakharuk 3715: #-- <marquee> tag (end tag optional)
1.122 albertel 3716: sub start_marquee {
3717: my ($target,$token) = @_;
3718: my $currentstring = '';
1.325 albertel 3719: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3720: $currentstring = $token->[4];
3721: }
3722: return $currentstring;
3723: }
3724:
3725: sub end_marquee {
3726: my ($target,$token) = @_;
3727: my $currentstring = '';
1.325 albertel 3728: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3729: $currentstring = $token->[2];
3730: }
3731: return $currentstring;
3732: }
3733:
1.179 sakharuk 3734: #-- <multicol> tag (end tag required)
3735: sub start_multicol {
1.122 albertel 3736: my ($target,$token) = @_;
1.279 foxr 3737: my $currentstring = &end_p(); # Close any pending <p>
1.325 albertel 3738: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 3739: $currentstring .= $token->[4];
1.122 albertel 3740: }
3741: return $currentstring;
3742: }
3743:
1.179 sakharuk 3744: sub end_multicol {
1.122 albertel 3745: my ($target,$token) = @_;
3746: my $currentstring = '';
1.325 albertel 3747: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3748: $currentstring = $token->[2];
3749: }
3750: return $currentstring;
3751: }
3752:
1.179 sakharuk 3753: #-- <nobr> tag (end tag required)
1.122 albertel 3754: sub start_nobr {
3755: my ($target,$token) = @_;
3756: my $currentstring = '';
1.325 albertel 3757: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3758: $currentstring = $token->[4];
1.179 sakharuk 3759: } elsif ($target eq 'tex') {
3760: $currentstring='\mbox{';
3761: }
1.122 albertel 3762: return $currentstring;
3763: }
3764:
3765: sub end_nobr {
3766: my ($target,$token) = @_;
3767: my $currentstring = '';
1.325 albertel 3768: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3769: $currentstring = $token->[2];
1.179 sakharuk 3770: } elsif ($target eq 'tex') {
3771: $currentstring='}';
3772: }
1.122 albertel 3773: return $currentstring;
3774: }
3775:
1.179 sakharuk 3776: #-- <noembed> tag (end tag required)
1.122 albertel 3777: sub start_noembed {
3778: my ($target,$token) = @_;
3779: my $currentstring = '';
1.325 albertel 3780: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3781: $currentstring = $token->[4];
3782: }
3783: return $currentstring;
3784: }
3785:
3786: sub end_noembed {
3787: my ($target,$token) = @_;
3788: my $currentstring = '';
1.325 albertel 3789: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3790: $currentstring = $token->[2];
3791: }
3792: return $currentstring;
3793: }
3794:
1.179 sakharuk 3795: #-- <noframes> tag (end tag required)
1.122 albertel 3796: sub start_noframes {
3797: my ($target,$token) = @_;
3798: my $currentstring = '';
1.325 albertel 3799: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3800: $currentstring = $token->[4];
3801: }
3802: return $currentstring;
3803: }
3804:
3805: sub end_noframes {
3806: my ($target,$token) = @_;
3807: my $currentstring = '';
1.325 albertel 3808: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3809: $currentstring = $token->[2];
3810: }
3811: return $currentstring;
3812: }
3813:
1.179 sakharuk 3814: #-- <nolayer> tag (end tag required)
1.122 albertel 3815: sub start_nolayer {
3816: my ($target,$token) = @_;
3817: my $currentstring = '';
1.325 albertel 3818: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3819: $currentstring = $token->[4];
3820: }
3821: return $currentstring;
3822: }
3823:
3824: sub end_nolayer {
3825: my ($target,$token) = @_;
3826: my $currentstring = '';
1.325 albertel 3827: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3828: $currentstring = $token->[2];
3829: }
3830: return $currentstring;
3831: }
3832:
1.179 sakharuk 3833: #-- <noscript> tag (end tag required)
1.122 albertel 3834: sub start_noscript {
3835: my ($target,$token) = @_;
3836: my $currentstring = '';
1.325 albertel 3837: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3838: $currentstring = $token->[4];
3839: }
3840: return $currentstring;
3841: }
3842:
3843: sub end_noscript {
3844: my ($target,$token) = @_;
3845: my $currentstring = '';
1.325 albertel 3846: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3847: $currentstring = $token->[2];
3848: }
3849: return $currentstring;
3850: }
3851:
1.179 sakharuk 3852: #-- <object> tag (end tag required)
1.122 albertel 3853: sub start_object {
3854: my ($target,$token) = @_;
3855: my $currentstring = '';
1.325 albertel 3856: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3857: $currentstring = $token->[4];
3858: }
3859: return $currentstring;
3860: }
3861:
3862: sub end_object {
3863: my ($target,$token) = @_;
3864: my $currentstring = '';
1.325 albertel 3865: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3866: $currentstring = $token->[2];
3867: }
3868: return $currentstring;
3869: }
3870:
1.179 sakharuk 3871: #-- <optgroup> tag (end tag required)
1.122 albertel 3872: sub start_optgroup {
3873: my ($target,$token) = @_;
3874: my $currentstring = '';
1.325 albertel 3875: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3876: $currentstring = $token->[4];
3877: }
3878: return $currentstring;
3879: }
3880:
3881: sub end_optgroup {
3882: my ($target,$token) = @_;
3883: my $currentstring = '';
1.325 albertel 3884: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3885: $currentstring = $token->[2];
3886: }
3887: return $currentstring;
3888: }
3889:
1.179 sakharuk 3890: #-- <samp> tag (end tag required)
1.122 albertel 3891: sub start_samp {
3892: my ($target,$token) = @_;
3893: my $currentstring = '';
1.325 albertel 3894: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3895: $currentstring = $token->[4];
1.179 sakharuk 3896: } elsif ($target eq 'tex') {
3897: $currentstring='\texttt{';
3898: }
1.122 albertel 3899: return $currentstring;
3900: }
3901:
3902: sub end_samp {
3903: my ($target,$token) = @_;
3904: my $currentstring = '';
1.325 albertel 3905: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3906: $currentstring = $token->[2];
1.179 sakharuk 3907: } elsif ($target eq 'tex') {
3908: $currentstring='}';
3909: }
1.122 albertel 3910: return $currentstring;
3911: }
3912:
3913: #-- <server> tag
3914: sub start_server {
3915: my ($target,$token) = @_;
3916: my $currentstring = '';
1.325 albertel 3917: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3918: $currentstring = $token->[4];
3919: }
3920: return $currentstring;
3921: }
3922:
3923: sub end_server {
3924: my ($target,$token) = @_;
3925: my $currentstring = '';
1.325 albertel 3926: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3927: $currentstring = $token->[2];
3928: }
3929: return $currentstring;
3930: }
3931:
1.179 sakharuk 3932: #-- <spacer> tag (end tag forbidden)
1.122 albertel 3933: sub start_spacer {
3934: my ($target,$token) = @_;
1.279 foxr 3935: my $currentstring = &end_p(); # Close off any open <p> tag.
1.325 albertel 3936: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 3937: $currentstring .= $token->[4];
1.122 albertel 3938: }
3939: return $currentstring;
3940: }
3941:
3942: sub end_spacer {
3943: my ($target,$token) = @_;
3944: my $currentstring = '';
1.325 albertel 3945: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3946: $currentstring = $token->[2];
3947: }
3948: return $currentstring;
3949: }
3950:
1.179 sakharuk 3951: #-- <span> tag (end tag required)
1.122 albertel 3952: sub start_span {
3953: my ($target,$token) = @_;
3954: my $currentstring = '';
1.325 albertel 3955: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3956: $currentstring = $token->[4];
3957: }
3958: return $currentstring;
3959: }
3960:
3961: sub end_span {
3962: my ($target,$token) = @_;
3963: my $currentstring = '';
1.325 albertel 3964: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3965: $currentstring = $token->[2];
3966: }
3967: return $currentstring;
3968: }
3969:
1.179 sakharuk 3970: #-- <tbody> tag (end tag optional)
1.122 albertel 3971: sub start_tbody {
3972: my ($target,$token) = @_;
3973: my $currentstring = '';
1.325 albertel 3974: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3975: $currentstring = $token->[4];
3976: }
3977: return $currentstring;
3978: }
3979:
3980: sub end_tbody {
3981: my ($target,$token) = @_;
3982: my $currentstring = '';
1.325 albertel 3983: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3984: $currentstring = $token->[2];
3985: }
3986: return $currentstring;
3987: }
3988:
1.166 sakharuk 3989: #-- <tfoot> tag (end tag optional)
1.122 albertel 3990: sub start_tfoot {
3991: my ($target,$token) = @_;
3992: my $currentstring = '';
1.325 albertel 3993: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3994: $currentstring = $token->[4];
3995: }
3996: return $currentstring;
3997: }
3998:
3999: sub end_tfoot {
4000: my ($target,$token) = @_;
4001: my $currentstring = '';
1.325 albertel 4002: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4003: $currentstring = $token->[2];
4004: }
4005: return $currentstring;
4006: }
4007:
1.166 sakharuk 4008: #-- <thead> tag (end tag optional)
1.122 albertel 4009: sub start_thead {
4010: my ($target,$token) = @_;
4011: my $currentstring = '';
1.325 albertel 4012: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4013: $currentstring = $token->[4];
4014: }
4015: return $currentstring;
4016: }
1.10 www 4017:
1.122 albertel 4018: sub end_thead {
4019: my ($target,$token) = @_;
4020: my $currentstring = '';
1.325 albertel 4021: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4022: $currentstring = $token->[2];
4023: }
4024: return $currentstring;
4025: }
1.119 www 4026:
1.122 albertel 4027: #-- <var> tag
4028: sub start_var {
1.44 sakharuk 4029: my ($target,$token) = @_;
4030: my $currentstring = '';
1.325 albertel 4031: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4032: $currentstring = $token->[4];
1.163 sakharuk 4033: } elsif ($target eq 'tex') {
4034: $currentstring = '\textit{';
4035: }
1.44 sakharuk 4036: return $currentstring;
4037: }
1.10 www 4038:
1.122 albertel 4039: sub end_var {
4040: my ($target,$token) = @_;
1.44 sakharuk 4041: my $currentstring = '';
1.325 albertel 4042: if ($target eq 'web' || $target eq 'webgrade') {
1.163 sakharuk 4043: $currentstring = $token->[2];
4044: } elsif ($target eq 'tex') {
4045: $currentstring = '}';
1.44 sakharuk 4046: }
4047: return $currentstring;
4048: }
1.119 www 4049:
1.163 sakharuk 4050: #-- <wbr> tag (end tag forbidden)
1.122 albertel 4051: sub start_wbr {
4052: my ($target,$token) = @_;
4053: my $currentstring = '';
1.325 albertel 4054: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4055: $currentstring = $token->[4];
4056: }
4057: return $currentstring;
1.98 albertel 4058: }
4059:
1.122 albertel 4060: sub end_wbr {
4061: my ($target,$token) = @_;
4062: my $currentstring = '';
1.325 albertel 4063: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4064: $currentstring = $token->[2];
4065: }
4066: return $currentstring;
1.98 albertel 4067: }
1.134 sakharuk 4068:
4069: #-- <hideweboutput> tag
4070: sub start_hideweboutput {
4071: my ($target,$token) = @_;
1.325 albertel 4072: if ($target eq 'web' || $target eq 'webgrade') {
1.134 sakharuk 4073: &Apache::lonxml::startredirection();
4074: }
4075: return '';
4076: }
4077:
4078: sub end_hideweboutput {
4079: my ($target,$token) = @_;
4080: my $currentstring = '';
1.325 albertel 4081: if ($target eq 'web' || $target eq 'webgrade') {
1.134 sakharuk 4082: $currentstring = &Apache::lonxml::endredirection();
4083: }
4084: return '';
4085: }
4086:
1.94 sakharuk 4087:
4088: sub image_replication {
4089: my $src = shift;
1.187 albertel 4090: if (not -e $src) { &Apache::lonnet::repcopy($src); }
4091: #replicates eps or ps
4092: my $epssrc = my $pssrc = $src;
4093: $epssrc =~ s/\.(gif|jpg|jpeg|png)$/.eps/i;
4094: $pssrc =~ s/\.(gif|jpg|jpeg|png)$/.ps/i;
4095: if (not -e $epssrc && not -e $pssrc) {
4096: my $result=&Apache::lonnet::repcopy($epssrc);
1.264 raeburn 4097: if ($result ne 'ok') { &Apache::lonnet::repcopy($pssrc); }
1.94 sakharuk 4098: }
4099: return '';
1.195 sakharuk 4100: }
1.275 foxr 4101: #
4102: # Get correct sizing parameter for an image given
4103: # it's initial ht. and wid. This allows sizing of
4104: # images that are generated on-the-fly (e.g. gnuplot)
4105: # as well as serving as a utility for image_size.
4106: #
4107: # Parameter:
4108: # height_param
4109: # width_param - Initial picture dimensions.
4110: # scaling - A scale factor.
4111: # parstack, - the current stack of tag attributes
4112: # from the xml parser
4113: # safeeval, - pointer to the safespace
4114: # depth, - from what level in the stack to look for attributes
4115: # (assumes -1 if unspecified)
4116: # cis - look for attrubutes case insensitively
4117: # (assumes false)
4118: #
4119: # Returns:
4120: # height, width - new dimensions.
4121: #
4122: sub resize_image {
4123: my ($height_param, $width_param, $scaling,
4124: $parstack, $safeeval, $depth, $cis) = @_;
4125:
4126: # First apply the scaling...
1.271 foxr 4127:
1.275 foxr 4128: $height_param = $height_param * $scaling;
4129: $width_param = $width_param * $scaling;
1.261 foxr 4130:
1.197 sakharuk 4131: #do we have any specified LaTeX size of the picture?
1.261 foxr 4132: my $toget='TeXwidth';
4133: if ($cis) {
4134: $toget=lc($toget);
4135: }
1.256 albertel 4136: my $TeXwidth = &Apache::lonxml::get_param($toget,$parstack,
4137: $safeeval,$depth,$cis);
4138: $toget='TeXheight'; if ($cis) { $toget=lc($toget); }
4139: my $TeXheight = &Apache::lonxml::get_param($toget,$parstack,
4140: $safeeval,$depth,$cis);
1.197 sakharuk 4141: #do we have any specified web size of the picture?
4142: my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval,
1.256 albertel 4143: $depth,1);
4144: if ($TeXwidth) {
1.252 matthew 4145: my $old_width_param=$width_param;
1.197 sakharuk 4146: if ($TeXwidth=~/(\d+)\s*\%/) {
1.267 albertel 4147: $width_param = $1*$env{'form.textwidth'}/100;
1.197 sakharuk 4148: } else {
4149: $width_param = $TeXwidth;
4150: }
1.266 albertel 4151: if ($TeXheight) {
4152: $height_param = $TeXheight;
4153: } elsif ($old_width_param) {
4154: $height_param=$TeXwidth/$old_width_param*$height_param;
4155: }
1.256 albertel 4156: } elsif ($TeXheight) {
1.248 foxr 4157: $height_param = $TeXheight;
1.266 albertel 4158: if ($height_param) {
4159: $width_param = $TeXheight/$height_param*$width_param;
4160: }
1.256 albertel 4161: } elsif ($width) {
1.252 matthew 4162: my $old_width_param=$width_param;
1.256 albertel 4163: $width_param = $width*$scaling;
1.266 albertel 4164: if ($old_width_param) {
4165: $height_param=$width_param/$old_width_param*$height_param;
4166: }
1.252 matthew 4167: }
1.267 albertel 4168: if ($width_param > $env{'form.textwidth'}) {
1.252 matthew 4169: my $old_width_param=$width_param;
1.267 albertel 4170: $width_param =0.95*$env{'form.textwidth'};
1.266 albertel 4171: if ($old_width_param) {
4172: $height_param=$width_param/$old_width_param*$height_param;
4173: }
1.197 sakharuk 4174: }
1.275 foxr 4175:
4176: return ($height_param, $width_param);
4177: }
4178:
4179: sub image_size {
4180: my ($src,$scaling,$parstack,$safeeval,$depth,$cis)=@_;
4181:
4182: #size of image from gif/jpg/jpeg/png
4183: my $ressrc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
4184: if (-e $ressrc) {
4185: $src = $ressrc;
4186: }
4187: my $image = Image::Magick->new;
4188: my $current_figure = $image->Read($src);
4189: my $width_param = $image->Get('width');
4190: my $height_param = $image->Get('height');
4191: &Apache::lonxml::debug("Image magick says: $src : Height = $height_param width = $width_param");
4192: undef($image);
4193:
4194: ($height_param, $width_param) = &resize_image($height_param, $width_param,
4195: $scaling, $parstack, $safeeval,
4196: $depth, $cis);
4197:
1.248 foxr 4198: return ($height_param, $width_param);
4199: }
4200:
4201: sub image_width {
4202: my ($height, $width) = &image_size(@_);
4203: return $width;
4204: }
4205: # Not yet 100% sure this is correct in all circumstances..
4206: # due to my uncertainty about mods to image_size.
4207: #
4208: sub image_height {
4209: my ($height, $width) = &image_size(@_);
4210: return $height;
1.197 sakharuk 4211: }
4212:
1.256 albertel 4213: sub get_eps_image {
4214: my ($src)=@_;
1.261 foxr 4215: my $orig_src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1], $src);
1.285 foxr 4216:
4217: # In order to prevent the substitution of the alt text, we need to
4218: # be sure the orig_src file is on system now so:
4219:
4220: if (! -e $orig_src) {
4221: &Apache::lonnet::repcopy($orig_src); # Failure is not completely fatal.
4222: }
1.275 foxr 4223: &Apache::lonxml::debug("get_eps_image: Original image: $orig_src");
1.344 albertel 4224: my ($spath, $sname, $sext) = &fileparse($src, qr/\.(gif|png|jpg|jpeg)/i);
1.256 albertel 4225: $src=~s/\.(gif|png|jpg|jpeg)$/\.eps/i;
4226: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.275 foxr 4227: &Apache::lonxml::debug("Filelocation gives: $src");
1.256 albertel 4228: if (! -e $src) {
1.261 foxr 4229: &Apache::lonxml::debug("$src does not exist");
1.264 raeburn 4230: if (&Apache::lonnet::repcopy($src) ne 'ok' ) {
1.261 foxr 4231: &Apache::lonxml::debug("Repcopy of $src failed (1)");
1.256 albertel 4232: #if replication failed try to find ps file
4233: $src=~s/\.eps$/\.ps/;
1.261 foxr 4234: &Apache::lonxml::debug("Now looking for $src");
1.270 foxr 4235: #if no ps file try to replicate it.
4236: my $didrepcopy = &Apache::lonnet::repcopy($src);
4237: &Apache::lonxml::debug("repcopy of $src ... $didrepcopy");
4238: if ( (not -e $src) ||
4239: ($didrepcopy ne 'ok')) {
1.261 foxr 4240: &Apache::lonxml::debug("Failed to find or replicate $src");
4241:
1.256 albertel 4242: #if replication failed try to produce eps file dynamically
4243: $src=~s/\.ps$/\.eps/;
4244: my $temp_file;
1.267 albertel 4245: open(FILE,">>/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat");
1.256 albertel 4246: my $newsrc=$orig_src;
4247: $newsrc =~ s|(.*)/res/|/home/httpd/html/res/|;
1.275 foxr 4248: &Apache::lonxml::debug("queueing $newsrc for dynamic eps production.");
1.344 albertel 4249: print FILE ("$newsrc\n");
4250: close(FILE);
1.256 albertel 4251: $src=~s|/home/httpd/html/res|/home/httpd/prtspool|;
4252: $src=~s|/home/([^/]*)/public_html/|/home/httpd/prtspool/$1/|;
1.283 albertel 4253: if ($sext ne "") { # Put the ext. back in to uniquify.
4254: $src =~ s/\.eps$/$sext.eps/;
4255: }
1.341 foxr 4256:
1.256 albertel 4257: }
1.343 foxr 4258:
1.256 albertel 4259: }
1.341 foxr 4260: } else {
4261: # If the postscript file has spaces in its name,
4262: # LaTeX will gratuitiously vomit. Therefore
4263: # queue such files for copy with " " replaced by "_".
4264: # printout.pm will know them by their .ps or .eps extensions.
4265: my $newsrc = $orig_src;
4266: $newsrc =~ s|(.*)/res/|/home/httpd/html/res/|;
4267: open(FILE,">>/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat");
1.343 foxr 4268: print FILE "$src\n";
1.341 foxr 4269: close FILE;
4270: $src=~s|/home/httpd/html/res|/home/httpd/prtspool|;
4271: $src=~s|/home/([^/]*)/public_html/|/home/httpd/prtspool/$1/|;
1.256 albertel 4272: }
4273: my ($path,$file)=($src=~m|(.*)/([^/]*)$|);
1.344 albertel 4274: $path =~ s/ /\_/g;
1.343 foxr 4275: $file =~ s/ /\_/g;
1.261 foxr 4276: &Apache::lonxml::debug("get_eps_image returning: $path / $file<BR />");
1.256 albertel 4277: return ($path.'/',$file);
4278: }
4279:
1.195 sakharuk 4280: sub eps_generation {
4281: my ($src,$file,$width_param) = @_;
1.267 albertel 4282: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat";
1.195 sakharuk 4283: my $temp_file = Apache::File->new('>>'.$filename);
4284: print $temp_file "$src\n";
4285: my $newsrc = $src;
4286: $newsrc =~ s/(\.gif|\.jpg|\.jpeg)$/\.eps/i;
1.345 albertel 4287: $newsrc=~s{/home/httpd/html/res}{};
4288: $newsrc=~s{/home/($LONCAPA::username_re)/public_html/}{/$1/};
4289: $newsrc=~s{/\./}{/};
4290: $newsrc=~s{/([^/]+)\.(ps|eps)}{/};
4291: if ($newsrc=~m{/home/httpd/lonUsers/}) {
4292: $newsrc=~s{/home/httpd/lonUsers}{};
4293: $newsrc=~s{/($LONCAPA::domain_re)/./././}{/$1/};
1.213 sakharuk 4294: }
1.345 albertel 4295: if ($newsrc=~m{/userfiles/}) {
1.239 sakharuk 4296: return ' \graphicspath{{'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4297: } else {
4298: return ' \graphicspath{{/home/httpd/prtspool'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4299: }
1.197 sakharuk 4300: }
4301:
4302: sub file_path {
4303: my $src=shift;
4304: my ($file,$path);
4305: if ($src =~ m!(.*)/([^/]*)$!) {
4306: $file = $2;
4307: $path = $1.'/';
4308: }
4309: return $file,$path;
1.126 sakharuk 4310: }
1.294 foxr 4311: # Converts a measurement in to mm from any of
4312: # the other valid LaTeX units of measure.
4313: # If the units of measure are missing from the
4314: # parameter, it is assumed to be in and returned
4315: # with mm units of measure
1.126 sakharuk 4316: sub recalc {
4317: my $argument = shift;
4318: if (not $argument=~/(mm|cm|in|pc|pt)/) {return $argument.' mm';}
1.132 sakharuk 4319: $argument=~/\s*(\d+\.?\d*)\s*(mm|cm|in|pc|pt)/;
1.126 sakharuk 4320: my $value=$1;
4321: my $units=$2;
4322: if ($units eq 'cm') {
4323: $value*=10;
4324: } elsif ($units eq 'in') {
4325: $value*=25.4;
4326: } elsif ($units eq 'pc') {
4327: $value*=(25.4*12/72.27);
4328: } elsif ($units eq 'pt') {
4329: $value*=(25.4/72.27);
4330: }
4331: return $value.' mm';
1.94 sakharuk 4332: }
1.184 sakharuk 4333:
4334: sub LATEX_length {
4335: my $garbage=shift;
1.206 sakharuk 4336: $garbage=~s/^\s+$//;
4337: $garbage=~s/^\s+(\S.*)/$1/;#space before
4338: $garbage=~s/(.*\S)\s+$/$1/;#space after
4339: $garbage=~s/(\s)+/$1/;#only one space
4340: $garbage=~s/(\\begin{([^\}]+)}|\\end{([^\}]+)})//g;#remove LaTeX \begin{...} and \end{...}
4341: $garbage=~s/(\$\_\{|\$\_|\$\^{|\$\^|\}\$)//g;#remove $_{,$_,$^{,$^,}$
4342: $garbage=~s/([^\\])\$/$1/g;#$
4343: $garbage=~s/(\\ensuremath\{\_\{|\\ensuremath\{\_|\\ensuremath\{\^{|\\ensuremath\{\^|\})//g;#remove \ensuremath{...}
4344: $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 4345: $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;
4346: $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;
4347: $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 4348: $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;
4349: $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;
4350: $garbage=~s/(\\hat{([^}]+)}|\\check{([^}]+)}|\\dot{([^}]+)}|\\breve{([^}]+)}|\\acute{([^}]+)}|\\ddot{([^}]+)}|\\grave{([^}]+)}|\\tilde{([^}]+)}|\\mathring{([^}]+)}|\\bar{([^}]+)}|\\vec{([^}]+)})/$1/g;
4351: #remove some other LaTeX command
4352: $garbage=~s|\\(\w+)\\|\\|g;
4353: $garbage=~s|\\(\w+)(\s*)|$2|g;
4354: $garbage=~s|\+|11|g;
1.184 sakharuk 4355: my $value=length($garbage);
4356: return $value;
4357: }
4358:
1.353 foxr 4359: # Wrap image 'stuff' inside of the LaTeX required to implement
4360: # alignment:
4361: # align_tex_image(align, latex_rendering, image)
4362: # Where:
4363: # align - The HTML alignment specification.
4364: # latex_rendering - rendering hint for latex.
4365: # image - The LaTeX needed to insert the image itsef.
4366: # width,height - dimensions of the image.
1.354 foxr 4367: # Returns:
4368: # The 1/2 wrapped image and the stuff required to close the
4369: # wrappage. This allows e.g. randomlabel to insert more stuff
4370: # into the closure.
1.353 foxr 4371: #
4372: sub align_latex_image {
4373: my ($align, $latex_rendering, $image, $width, $height) = @_;
1.354 foxr 4374: my $currentstring; # The 1/2 wrapped image.
4375: my $closure; # The closure of the wrappage.
1.353 foxr 4376: # If there's an alignment specification we need to honor it here.
4377: # For the horizontal alignments, we will also honor the
4378: # value of the latex specfication. The default is parbox,
4379: # and that's used for illegal values too.
4380: #
4381: # Even though we set a default alignment value, the user
4382: # could have given us an illegal value. In that case we
4383: # just use the default alignment of bottom..
1.354 foxr 4384: $currentstring = "\n% figurewrapping \n";
1.353 foxr 4385: if ($align eq "top") {
1.354 foxr 4386: $currentstring .= '\raisebox{-'.$height.'mm}{'.$image;
4387: $closure = '}';
1.353 foxr 4388: } elsif (($align eq "center") || ($align eq "middle")) { # Being kind
4389: my $offset = $height/2;
1.354 foxr 4390: $currentstring .= '\raisebox{-'.$offset.'mm}{'.$image;
4391: $closure = '}';
1.353 foxr 4392: } elsif ($align eq "left") {
4393: if ($latex_rendering eq "parpic") {
1.354 foxr 4394: $currentstring .= '\parpic[l]{'.$image;
4395: $closure = '}';
1.353 foxr 4396: } elsif ($latex_rendering eq "parbox") {
1.354 foxr 4397: $currentstring .= '\begin{minipage}[l]{'.$width.'mm}'
4398: .$image;
4399: $closure = '\end{minipage}';
1.353 foxr 4400: } elsif ($latex_rendering eq "wrapfigure"
4401: || $latex_rendering ne 'none') { # wrapfig render
1.354 foxr 4402: $currentstring .=
1.353 foxr 4403: '\begin{wrapfigure}{l}{'.$width.'mm}'
1.354 foxr 4404: .'\scalebox{1.0}{'.$image;
4405: $closure = '}\end{wrapfigure}';
1.353 foxr 4406: }
4407: } elsif ($align eq "right") {
4408: if ($latex_rendering eq "parpic") {
1.354 foxr 4409: $currentstring .= '\parpic[r]{'.$image;
4410: $closure = '}';
1.353 foxr 4411: } elsif ($latex_rendering eq "parbox") {
1.354 foxr 4412: $currentstring .= '\begin{minipage}[r]{'.$width.'mm}'
4413: .$image;
4414: $closure = '\end{minipage}';
1.353 foxr 4415: } elsif ($latex_rendering eq "wrapfigure"
4416: || $latex_rendering ne 'none') { # wrapfig render
1.354 foxr 4417: $currentstring .=
1.353 foxr 4418: '\begin{wrapfigure}{r}{'.$width.'mm}'
1.354 foxr 4419: .'\scalebox{1.0}{'.$image;
4420: $closure = '}\end{wrapfigure}';
1.353 foxr 4421: }
4422: } else { # Bottom is also default.
4423: # $currentstring = '\raisebox{'.$height.'mm}{'.$image.'}';
1.354 foxr 4424: $currentstring .= "{$image";
4425: $closure = '}';
1.353 foxr 4426: }
1.354 foxr 4427: $currentstring .= "\n% end wrappage\n";
4428: $closure = "\n% Begin closure\n".$closure."\n% End closure\n";
4429: return ($currentstring, $closure);
1.353 foxr 4430: }
1.184 sakharuk 4431:
1.287 foxr 4432: # is_inside_of $tagstack $tag
4433: # This sub returns true if the current state of Xml processing
4434: # is inside of the tag.
4435: # Parameters:
4436: # tagstack - The tagstack from the parser.
4437: # tag - The tag (without the <>'s.).
4438: # Sample usage:
4439: # if (is_inside_of($tagstack "table")) {
4440: # # I'm in a table....
4441: # }
4442: sub is_inside_of {
4443: my ($tagstack, $tag) = @_;
4444: my @stack = @$tagstack;
4445: for (my $i = ($#stack - 1); $i >= 0; $i--) {
4446: if ($stack[$i] eq $tag) {
4447: return 1;
4448: }
4449: }
4450: return 0;
4451: }
1.184 sakharuk 4452:
1.94 sakharuk 4453:
1.1 sakharuk 4454: 1;
4455: __END__
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