Annotation of loncom/xml/londefdef.pm, revision 1.353
1.1 sakharuk 1: # The LearningOnline Network with CAPA
2: # Tags Default Definition Module
3: #
1.353 ! foxr 4: # $Id: londefdef.pm,v 1.352 2007/01/18 20:48:02 albertel 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 ';
1230: } elsif ($$tagstack[-2] ne 'sub' && $$tagstack[-2] ne 'sup') {
1231: $currentstring .= '\strut \\\\ \strut ';
1.338 foxr 1232: } else { # Honor break in simple <sup></sup>
1233: $currentstring .= '}} \strut \\\\ \strut \ensuremath{^{';
1.1 sakharuk 1234: }
1.144 sakharuk 1235: }
1.122 albertel 1236: return $currentstring;
1237: }
1238:
1239: sub end_br {
1240: my ($target,$token) = @_;
1241: my $currentstring = '';
1.325 albertel 1242: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1243: $currentstring .= $token->[2];
1244: }
1245: return $currentstring;
1246: }
1247:
1.181 sakharuk 1248: #-- <big> tag (end tag required)
1.122 albertel 1249: sub start_big {
1250: my ($target,$token) = @_;
1251: my $currentstring = '';
1.325 albertel 1252: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1253: $currentstring .= $token->[4];
1254: } elsif ($target eq 'tex') {
1.137 sakharuk 1255: $currentstring .= '{\large ';
1.144 sakharuk 1256: }
1.122 albertel 1257: return $currentstring;
1258: }
1259:
1260: sub end_big {
1261: my ($target,$token) = @_;
1262: my $currentstring = '';
1.325 albertel 1263: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1264: $currentstring .= $token->[2];
1265: } elsif ($target eq 'tex') {
1266: $currentstring .= '}';
1267: }
1268: return $currentstring;
1269: }
1270:
1.181 sakharuk 1271: #-- <small> tag (end tag required)
1.122 albertel 1272: sub start_small {
1273: my ($target,$token) = @_;
1274: my $currentstring = '';
1.325 albertel 1275: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1276: $currentstring .= $token->[4];
1277: } elsif ($target eq 'tex') {
1278: $currentstring .= '{\footnotesize ';
1.144 sakharuk 1279: }
1.122 albertel 1280: return $currentstring;
1281: }
1282:
1283: sub end_small {
1284: my ($target,$token) = @_;
1285: my $currentstring = '';
1.325 albertel 1286: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1287: $currentstring .= $token->[2];
1288: } elsif ($target eq 'tex') {
1289: $currentstring .= '}';
1290: }
1291: return $currentstring;
1292: }
1293:
1.181 sakharuk 1294: #-- <basefont> tag (end tag forbidden)
1.122 albertel 1295: sub start_basefont {
1.126 sakharuk 1296: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.122 albertel 1297: my $currentstring = '';
1.325 albertel 1298: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1299: $currentstring = $token->[4];
1.126 sakharuk 1300: } elsif ($target eq 'tex') {
1301: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1302: if (defined $basesize) {
1303: $currentstring = '{\\'.$basesize.' ';
1304: }
1305: }
1.122 albertel 1306: return $currentstring;
1307: }
1308:
1309: sub end_basefont {
1.126 sakharuk 1310: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1311: my $currentstring = '';
1.325 albertel 1312: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1313: $currentstring = $token->[4];
1.126 sakharuk 1314: } elsif ($target eq 'tex') {
1315: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1316: if (defined $basesize) {
1317: $currentstring = '}';
1318: }
1319: }
1.122 albertel 1320: return $currentstring;
1321: }
1322:
1.181 sakharuk 1323: #-- <font> tag (end tag required)
1.122 albertel 1324: sub start_font {
1325: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1326: my $currentstring = '';
1.325 albertel 1327: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1328: my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
1.204 albertel 1329: if ($face!~/symbol/i) {
1.267 albertel 1330: if (($env{'browser.fontenhance'} eq 'on') ||
1331: ($env{'browser.blackwhite'} eq 'on')) { return ''; }
1.155 www 1332: }
1.122 albertel 1333: $currentstring = $token->[4];
1.126 sakharuk 1334: } elsif ($target eq 'tex') {
1335: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1336: if (defined $fontsize) {
1337: $currentstring = '{\\'.$fontsize.' ';
1338: }
1339: }
1.122 albertel 1340: return $currentstring;
1341: }
1342:
1343: sub end_font {
1344: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1345: my $currentstring = '';
1.325 albertel 1346: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1347: $currentstring = $token->[2];
1.126 sakharuk 1348: } elsif ($target eq 'tex') {
1349: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1350: if (defined $fontsize) {
1351: $currentstring = '}';
1352: }
1353: }
1.122 albertel 1354: return $currentstring;
1355: }
1356:
1.181 sakharuk 1357: #-- <strike> tag (end tag required)
1.122 albertel 1358: sub start_strike {
1359: my ($target,$token) = @_;
1360: my $currentstring = '';
1.325 albertel 1361: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1362: $currentstring .= $token->[4];
1363: } elsif ($target eq 'tex') {
1364: &Apache::lonxml::startredirection();
1365: }
1366: return $currentstring;
1367: }
1368:
1369: sub end_strike {
1370: my ($target,$token) = @_;
1371: my $currentstring = '';
1.325 albertel 1372: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1373: $currentstring .= $token->[2];
1374: } elsif ($target eq 'tex') {
1375: $currentstring=&Apache::lonxml::endredirection();
1376: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1377: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1378: $currentstring=~s/(\S)\s*$/$1\}/;
1379: }
1380: return $currentstring;
1381: }
1382:
1.181 sakharuk 1383: #-- <s> tag (end tag required)
1.122 albertel 1384: sub start_s {
1385: my ($target,$token) = @_;
1386: my $currentstring = '';
1.325 albertel 1387: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1388: $currentstring .= $token->[4];
1389: } elsif ($target eq 'tex') {
1390: &Apache::lonxml::startredirection();
1391: }
1392: return $currentstring;
1393: }
1394:
1395: sub end_s {
1396: my ($target,$token) = @_;
1397: my $currentstring = '';
1.325 albertel 1398: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1399: $currentstring .= $token->[2];
1400: } elsif ($target eq 'tex') {
1401: $currentstring=&Apache::lonxml::endredirection();
1402: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1403: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1404: $currentstring=~s/(\S)\s*$/$1\}/;
1405: }
1406: return $currentstring;
1407: }
1408:
1.181 sakharuk 1409: #-- <sub> tag (end tag required)
1.122 albertel 1410: sub start_sub {
1411: my ($target,$token) = @_;
1412: my $currentstring = '';
1.325 albertel 1413: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1414: $currentstring .= $token->[4];
1415: } elsif ($target eq 'tex') {
1.202 sakharuk 1416: $currentstring .= '\ensuremath{_{';
1.122 albertel 1417: }
1418: return $currentstring;
1419: }
1420:
1421: sub end_sub {
1422: my ($target,$token) = @_;
1423: my $currentstring = '';
1.325 albertel 1424: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1425: $currentstring .= $token->[2];
1426: } elsif ($target eq 'tex') {
1.202 sakharuk 1427: $currentstring .= '}}';
1.122 albertel 1428: }
1429: return $currentstring;
1430: }
1431:
1.181 sakharuk 1432: #-- <sup> tag (end tag required)
1.122 albertel 1433: sub start_sup {
1434: my ($target,$token) = @_;
1435: my $currentstring = '';
1.325 albertel 1436: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1437: $currentstring .= $token->[4];
1438: } elsif ($target eq 'tex') {
1.202 sakharuk 1439: $currentstring .= '\ensuremath{^{';
1.122 albertel 1440: }
1441: return $currentstring;
1442: }
1443:
1444: sub end_sup {
1445: my ($target,$token) = @_;
1446: my $currentstring = '';
1.325 albertel 1447: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1448: $currentstring .= $token->[2];
1449: } elsif ($target eq 'tex') {
1.202 sakharuk 1450: $currentstring .= '}}';
1.122 albertel 1451: }
1452: return $currentstring;
1453: }
1454:
1.181 sakharuk 1455: #-- <hr> tag (end tag forbidden)
1.122 albertel 1456: sub start_hr {
1.124 sakharuk 1457: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1458: my $currentstring = &end_p(); # End enclosing para.
1.325 albertel 1459: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1460: $currentstring .= $token->[4];
1461: } elsif ($target eq 'tex') {
1.149 sakharuk 1462: my $LaTeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1.124 sakharuk 1463: if (defined $LaTeXwidth) {
1464: if ($LaTeXwidth=~/^%/) {
1465: substr($LaTeXwidth,0,1)='';
1466: $LaTeXwidth=($LaTeXwidth/100).'\textwidth';
1467: }
1468: } else {
1.148 sakharuk 1469: $LaTeXwidth ='0.9\textwidth';
1.124 sakharuk 1470: }
1471: my ($pre,$post);
1472: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1473: if (($align eq 'center') || (not defined $align)) {
1474: $pre=''; $post='';
1475: } elsif ($align eq 'left') {
1476: $pre='\rlap{'; $post='} \hfill';
1477: } elsif ($align eq 'right') {
1478: $pre=' \hfill \llap{'; $post='}';
1479: }
1.148 sakharuk 1480: $currentstring .= ' \vskip 0 mm \noindent\makebox['.$LaTeXwidth.']{'.$pre.'\makebox['.
1.124 sakharuk 1481: $LaTeXwidth.'][b]{\hrulefill}'.$post.'}\vskip 0 mm ';
1.122 albertel 1482: }
1483: return $currentstring;
1484: }
1485:
1486: sub end_hr {
1487: my ($target,$token) = @_;
1488: my $currentstring = '';
1.325 albertel 1489: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1490: $currentstring .= $token->[2];
1.148 sakharuk 1491: }
1.122 albertel 1492: return $currentstring;
1493: }
1494:
1.181 sakharuk 1495: #-- <div> tag (end tag required)
1.280 foxr 1496: {
1497:
1498: # Since div can be nested, the stack below is used
1499: # in 'tex' mode to store the ending strings
1500: # for the div stack.
1501:
1502: my @div_end_stack;
1503:
1.122 albertel 1504: sub start_div {
1.280 foxr 1505: my ($target,$token, $tagstack, $parstack, $parser, $safeeval) = @_;
1.279 foxr 1506: my $currentstring = &end_p(); # Close enclosing para.
1.325 albertel 1507: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1508: $currentstring .= $token->[4];
1509: }
1.280 foxr 1510: if ($target eq 'tex') {
1511: # 4 possible alignments: left, right, center, and -missing-.
1512:
1513: my $endstring = '';
1514:
1515: my $align = lc(&Apache::lonxml::get_param('align', $parstack,
1516: $safeeval, undef, 1));
1517: if ($align eq 'center') {
1518: $currentstring .= '\begin{center}';
1519: $endstring = '\end{center}';
1.309 albertel 1520: if (&is_inside_of($tagstack, "table")) {
1521: $currentstring = ¢er_correction().$currentstring;
1522: }
1.280 foxr 1523: }
1524: elsif ($align eq 'right') {
1525: $currentstring .= '\begin{flushright}';
1526: $endstring .= '\end{flushright}';
1527: } elsif ($align eq 'left') {
1528: $currentstring .= '\begin{flushleft}';
1529: $endstring = '\end{flushleft}';
1530: } else {
1531:
1532: }
1533: $currentstring .= "\n"; # For human readability.
1534: $endstring = "\n$endstring\n"; # For human readability
1535: push(@div_end_stack, $endstring);
1536: }
1.122 albertel 1537: return $currentstring;
1538: }
1539:
1540: sub end_div {
1541: my ($target,$token) = @_;
1542: my $currentstring = '';
1.325 albertel 1543: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1544: $currentstring .= $token->[2];
1.280 foxr 1545: }
1546: if ($target eq 'tex') {
1547: my $endstring = pop @div_end_stack;
1548: $currentstring .= $endstring;
1549: }
1.122 albertel 1550: return $currentstring;
1551: }
1.280 foxr 1552: }
1.122 albertel 1553:
1.181 sakharuk 1554: #-- <a> tag (end tag required)
1.122 albertel 1555: sub start_a {
1.149 sakharuk 1556: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1557: my $currentstring = '';
1.325 albertel 1558: if ($target eq 'web' || $target eq 'webgrade') {
1.250 albertel 1559: my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
1560: undef,1);
1561: $currentstring=&Apache::lonenc::encrypt_ref($token,{'href'=>$href});
1.122 albertel 1562: }
1563: return $currentstring;
1564: }
1565:
1566: sub end_a {
1.168 albertel 1567: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1568: my $currentstring = '';
1.325 albertel 1569: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1570: $currentstring .= $token->[2];
1571: }
1.351 foxr 1572: if ($target eq 'tex') {
1.352 albertel 1573: my $href =
1574: &Apache::lonxml::get_param('href',$parstack,$safeeval,undef,1);
1575: my $name =
1576: &Apache::lonxml::get_param('name',$parstack,$safeeval,undef,1);
1577: if ($href =~ /\S/) {
1578: $href =~ s/([^\\])%/$1\\\%/g;
1579: $currentstring .= ' ({\tt URI:'.&Apache::lonxml::latex_special_symbols($href).'})';
1580: } elsif ($name =~ /\S/) {
1581: $currentstring .= ' ({\tt Anchor:'.&Apache::lonxml::latex_special_symbols($name).'})';
1.351 foxr 1582: } else {
1583: $currentstring.='';
1584: }
1585: }
1.122 albertel 1586: return $currentstring;
1587: }
1588:
1.181 sakharuk 1589: #-- <li> tag (end tag optional)
1.122 albertel 1590: sub start_li {
1.168 albertel 1591: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1592: my $currentstring = '';
1.325 albertel 1593: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1594: $currentstring = $token->[4];
1595: } elsif ($target eq 'tex') {
1.237 sakharuk 1596: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1597: my $value=&Apache::lonxml::get_param('value',$parstack,$safeeval,undef,0);
1.238 albertel 1598: #FIXME need to support types i and I
1599: if ($type=~/disc/) {
1600: $currentstring .= ' \item[$\bullet$] ';
1601: } elsif ($type=~/circle/) {
1602: $currentstring .= ' \item[$\circ$] ';
1.146 sakharuk 1603: } elsif ($type=~/square/) {
1.238 albertel 1604: $currentstring .= ' \item[$\diamond$] ';
1605: } elsif ($type eq '1') {
1606: $currentstring .= ' \item['.($Apache::londefdef::list_index+1).'.]';
1.237 sakharuk 1607: } elsif ($type eq 'A') {
1.238 albertel 1608: $currentstring .= ' \item['.('A'..'Z')[$Apache::londefdef::list_index].'.]';
1.237 sakharuk 1609: } elsif ($type eq 'a') {
1.238 albertel 1610: $currentstring .= ' \item['.('a'..'z')[$Apache::londefdef::list_index].'.]';
1.237 sakharuk 1611: } elsif ($value ne '') {
1612: $currentstring .= ' \item['.$value.'] ';
1.122 albertel 1613: } else {
1.146 sakharuk 1614: $currentstring .= ' \item ';
1.122 albertel 1615: }
1.238 albertel 1616: $Apache::londefdef::list_index++;
1617: }
1.122 albertel 1618: return $currentstring;
1619: }
1620:
1621: sub end_li {
1622: my ($target,$token) = @_;
1.279 foxr 1623: my $currentstring = &end_p(); # In case there's a <p> in the <li>
1.325 albertel 1624: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1625: $currentstring .= $token->[2];
1.122 albertel 1626: }
1627: return $currentstring;
1628: }
1629:
1.181 sakharuk 1630: #-- <u> tag (end tag required)
1.122 albertel 1631: sub start_u {
1632: my ($target,$token) = @_;
1633: my $currentstring = '';
1.325 albertel 1634: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1635: $currentstring .= $token->[4];
1636: } elsif ($target eq 'tex') {
1637: &Apache::lonxml::startredirection();
1638: }
1639: return $currentstring;
1640: }
1641:
1642: sub end_u {
1643: my ($target,$token) = @_;
1644: my $currentstring = '';
1.325 albertel 1645: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1646: $currentstring .= $token->[2];
1647: } elsif ($target eq 'tex') {
1648: $currentstring=&Apache::lonxml::endredirection();
1649: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1650: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1651: $currentstring=~s/(\S)\s*$/$1\}/;
1652: }
1653: return $currentstring;
1654: }
1655:
1.181 sakharuk 1656: #-- <ul> tag (end tag required)
1.122 albertel 1657: sub start_ul {
1.125 sakharuk 1658: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1659: my $currentstring = &end_p(); # Close off enclosing list.
1.325 albertel 1660: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1661: $currentstring .= $token->[4];
1.122 albertel 1662: } elsif ($target eq 'tex') {
1.125 sakharuk 1663: my $TeXtype=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1.238 albertel 1664: $Apache::londefdef::list_index=0;
1.125 sakharuk 1665: if ($TeXtype eq 'disc') {
1.222 sakharuk 1666: $currentstring .= '\renewcommand{\labelitemi}{$\bullet$}'.
1667: '\renewcommand{\labelitemii}{$\bullet$}'.
1668: '\renewcommand{\labelitemiii}{$\bullet$}'.
1669: '\renewcommand{\labelitemiv}{$\bullet$}';
1.125 sakharuk 1670: } elsif ($TeXtype eq 'circle') {
1.222 sakharuk 1671: $currentstring .= '\renewcommand{\labelitemi}{$\circ$}'.
1672: '\renewcommand{\labelitemii}{$\circ$}'.
1673: '\renewcommand{\labelitemiii}{$\circ$}'.
1674: '\renewcommand{\labelitemiv}{$\circ$}';
1.125 sakharuk 1675: } elsif ($TeXtype eq 'square') {
1.222 sakharuk 1676: $currentstring .= '\renewcommand{\labelitemi}{$\diamond$}'.
1677: '\renewcommand{\labelitemii}{$\diamond$}'.
1678: '\renewcommand{\labelitemiii}{$\diamond$}'.
1679: '\renewcommand{\labelitemiv}{$\diamond$}';
1.125 sakharuk 1680: }
1.222 sakharuk 1681: $currentstring .= '\strut \begin{itemize}';
1.122 albertel 1682: }
1683: return $currentstring;
1684: }
1685:
1686: sub end_ul {
1687: my ($target,$token) = @_;
1688: my $currentstring = '';
1.325 albertel 1689: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1690: $currentstring = $token->[2];
1691: } elsif ($target eq 'tex') {
1.222 sakharuk 1692: $currentstring = '\end{itemize} \renewcommand{\labelitemi}{$\bullet$}'.
1693: '\renewcommand{\labelitemii}{$\bullet$}'.
1694: '\renewcommand{\labelitemiii}{$\bullet$}'.
1695: '\renewcommand{\labelitemiv}{$\bullet$}\strut ';
1.122 albertel 1696: }
1697: return $currentstring;
1698: }
1699:
1.181 sakharuk 1700: #-- <menu> tag (end tag required)
1.122 albertel 1701: sub start_menu {
1702: my ($target,$token) = @_;
1703: my $currentstring = '';
1.325 albertel 1704: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1705: $currentstring = $token->[4];
1706: } elsif ($target eq 'tex') {
1707: $currentstring = " \\begin{itemize} ";
1708: }
1709: return $currentstring;
1710: }
1711:
1712: sub end_menu {
1713: my ($target,$token) = @_;
1714: my $currentstring = '';
1.325 albertel 1715: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1716: $currentstring = $token->[2];
1717: } elsif ($target eq 'tex') {
1718: $currentstring = " \\end{itemize}";
1719: }
1720: return $currentstring;
1721: }
1722:
1.181 sakharuk 1723: #-- <dir> tag (end tag required)
1.122 albertel 1724: sub start_dir {
1725: my ($target,$token) = @_;
1.279 foxr 1726: my $currentstring = &end_p(); # In case there's a <p> prior to the list.
1.325 albertel 1727: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1728: $currentstring .= $token->[4];
1.122 albertel 1729: } elsif ($target eq 'tex') {
1.277 foxr 1730: $currentstring .= " \\begin{itemize} ";
1.122 albertel 1731: }
1732: return $currentstring;
1733: }
1734:
1735: sub end_dir {
1736: my ($target,$token) = @_;
1737: my $currentstring = '';
1.325 albertel 1738: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1739: $currentstring = $token->[2];
1740: } elsif ($target eq 'tex') {
1741: $currentstring = " \\end{itemize}";
1742: }
1743: return $currentstring;
1744: }
1745:
1.181 sakharuk 1746: #-- <ol> tag (end tag required)
1.122 albertel 1747: sub start_ol {
1.125 sakharuk 1748: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1749: my $currentstring = &end_p(); # In case there's a <p> prior to the list.
1.325 albertel 1750: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1751: $currentstring .= $token->[4];
1.122 albertel 1752: } elsif ($target eq 'tex') {
1.238 albertel 1753: $Apache::londefdef::list_index=0;
1.125 sakharuk 1754: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1755: if ($type eq '1') {
1.222 sakharuk 1756: $currentstring .= '\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1757: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1758: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1759: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}';
1.125 sakharuk 1760: } elsif ($type eq 'A') {
1.222 sakharuk 1761: $currentstring .= '\renewcommand{\labelenumi}{\Alph{enumi}.}'.
1762: '\renewcommand{\labelenumii}{\Alph{enumii}.}'.
1763: '\renewcommand{\labelenumiii}{\Alph{enumiii}.}'.
1764: '\renewcommand{\labelenumiv}{\Alph{enumiv}.}';
1.125 sakharuk 1765: } elsif ($type eq 'a') {
1.222 sakharuk 1766: $currentstring .= '\renewcommand{\labelenumi}{\alph{enumi}.}'.
1767: '\renewcommand{\labelenumii}{\alph{enumii}.}'.
1768: '\renewcommand{\labelenumiii}{\alph{enumiii}.}'.
1769: '\renewcommand{\labelenumiv}{\alph{enumiv}.}';
1.125 sakharuk 1770: } elsif ($type eq 'i') {
1.222 sakharuk 1771: $currentstring .= '\renewcommand{\labelenumi}{\roman{enumi}.}'.
1772: '\renewcommand{\labelenumii}{\roman{enumii}.}'.
1773: '\renewcommand{\labelenumiii}{\roman{enumiii}.}'.
1774: '\renewcommand{\labelenumiv}{\roman{enumiv}.}';
1.125 sakharuk 1775: } elsif ($type eq 'I') {
1.222 sakharuk 1776: $currentstring .= '\renewcommand{\labelenumi}{\Roman{enumi}.}'.
1777: '\renewcommand{\labelenumii}{\Roman{enumii}.}'.
1778: '\renewcommand{\labelenumiii}{\Roman{enumiii}.}'.
1779: '\renewcommand{\labelenumiv}{\Roman{enumiv}.}';
1.125 sakharuk 1780: }
1.222 sakharuk 1781: $currentstring .= '\strut \begin{enumerate}';
1.122 albertel 1782: }
1783: return $currentstring;
1784: }
1785:
1786: sub end_ol {
1787: my ($target,$token) = @_;
1788: my $currentstring = '';
1.325 albertel 1789: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1790: $currentstring = $token->[2];
1791: } elsif ($target eq 'tex') {
1.222 sakharuk 1792: $currentstring = '\end{enumerate}\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1793: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1794: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1795: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}\strut ';
1.122 albertel 1796: }
1797: return $currentstring;
1798: }
1799:
1.181 sakharuk 1800: #-- <dl> tag (end tag required)
1.122 albertel 1801: sub start_dl {
1802: my ($target,$token) = @_;
1.279 foxr 1803: my $currentstring = &end_p(); # In case there's a <p> unclosed prior to the list.
1.325 albertel 1804: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1805: $currentstring .= $token->[4];
1.122 albertel 1806: } elsif ($target eq 'tex') {
1.277 foxr 1807: $currentstring .= '\begin{description}';
1.243 albertel 1808: $Apache::londefdef::DL++;
1809: push(@Apache::londefdef::description,[]);
1810: $Apache::londefdef::DD[$Apache::londefdef::DL]=0;
1811: $Apache::londefdef::DT[$Apache::londefdef::DL]=0;
1.244 albertel 1812: $Apache::londefdef::seenDT[$Apache::londefdef::DL]=0;
1.122 albertel 1813: }
1814: return $currentstring;
1815: }
1816:
1817: sub end_dl {
1.174 sakharuk 1818: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1819: my $currentstring = '';
1.325 albertel 1820: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1821: $currentstring = $token->[2];
1822: } elsif ($target eq 'tex') {
1.243 albertel 1823: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1824: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
1825: foreach my $element (@{$Apache::londefdef::description[-1]}) {
1.174 sakharuk 1826: $currentstring.=' '.$element.' ';
1827: }
1.243 albertel 1828: pop(@Apache::londefdef::description);
1.174 sakharuk 1829: $currentstring.='\end{description}';
1.243 albertel 1830: delete($Apache::londefdef::DD[$Apache::londefdef::DL]);
1831: delete($Apache::londefdef::DT[$Apache::londefdef::DL]);
1.244 albertel 1832: delete($Apache::londefdef::seenDT[$Apache::londefdef::DL]);
1.243 albertel 1833: $Apache::londefdef::DL--;
1.122 albertel 1834: }
1835: return $currentstring;
1836: }
1837:
1.172 sakharuk 1838: #-- <dt> tag (end tag optional)
1.122 albertel 1839: sub start_dt {
1.172 sakharuk 1840: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1841: my $currentstring='';
1.325 albertel 1842: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1843: $currentstring = $token->[4];
1844: } elsif ($target eq 'tex') {
1.243 albertel 1845: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1846: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
1.174 sakharuk 1847: &Apache::lonxml::startredirection();
1.243 albertel 1848: $Apache::londefdef::DT[-1]++;
1.244 albertel 1849: $Apache::londefdef::seenDT[-1]=1;
1.122 albertel 1850: }
1851: return $currentstring;
1852: }
1853:
1854: sub end_dt {
1.172 sakharuk 1855: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1856: my $currentstring = '';
1.325 albertel 1857: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1858: $currentstring = $token->[2];
1859: } elsif ($target eq 'tex') {
1.243 albertel 1860: if ($Apache::londefdef::DT[-1]) {
1861: my $data=&item_cleanup();
1.244 albertel 1862: push(@{$Apache::londefdef::description[-1]},'\item['.$data.'] \strut \vskip 0mm');
1.243 albertel 1863: $Apache::londefdef::DT[-1]--;
1864: }
1.122 albertel 1865: }
1866: return $currentstring;
1867: }
1868:
1.173 sakharuk 1869: sub item_cleanup {
1.174 sakharuk 1870: my $item=&Apache::lonxml::endredirection();
1.173 sakharuk 1871: $item=~s/\\begin{center}//g;
1872: $item=~s/\\end{center}//g;
1873: return $item;
1874: }
1875:
1.181 sakharuk 1876: #-- <dd> tag (end tag optional)
1.122 albertel 1877: sub start_dd {
1.147 sakharuk 1878: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1879: my $currentstring = '';
1.325 albertel 1880: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1881: $currentstring = $token->[4];
1.147 sakharuk 1882: } elsif ($target eq 'tex') {
1.243 albertel 1883: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1884: if ($Apache::londefdef::DD[-1]) { &end_dd(@_);}
1.244 albertel 1885: if (!$Apache::londefdef::seenDT[-1]) {
1886: push(@{$Apache::londefdef::description[-1]},'\item[\strut] \strut \vskip 0mm ');
1887: }
1.243 albertel 1888: push(@{$Apache::londefdef::description[-1]},'');
1889: $Apache::londefdef::description[-1]->[-1].=' \strut ';
1890: $Apache::londefdef::DD[-1]++;
1.174 sakharuk 1891: &Apache::lonxml::startredirection();
1.122 albertel 1892: }
1893: return $currentstring;
1894: }
1895:
1896: sub end_dd {
1.174 sakharuk 1897: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1898: my $currentstring = '';
1.325 albertel 1899: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1900: $currentstring = $token->[2];
1.174 sakharuk 1901: } elsif ($target eq 'tex') {
1.243 albertel 1902: $Apache::londefdef::description[-1]->[-1].=
1903: &Apache::lonxml::endredirection().' \vskip 0mm ';
1904: $Apache::londefdef::DD[-1]--;
1.174 sakharuk 1905: }
1.122 albertel 1906: return $currentstring;
1907: }
1908:
1.181 sakharuk 1909: #-- <table> tag (end tag required)
1.277 foxr 1910: # <table> also ends any prior <p> that is not closed.
1911: # but, unless I allow <p>'s to nest, that's the
1912: # only way I could think of to allow <p> in
1913: # <tr> <th> bodies
1914: #
1.206 sakharuk 1915: #list of supported attributes: border,width,TeXwidth
1.91 sakharuk 1916: sub start_table {
1917: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 foxr 1918: my $textwidth = '';
1.279 foxr 1919: my $currentstring = &end_p();
1.325 albertel 1920: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1921: $currentstring .= $token->[4];
1.91 sakharuk 1922: } elsif ($target eq 'tex') {
1.344 albertel 1923: push(@Apache::londefdef::table, {});
1.91 sakharuk 1924: $Apache::londefdef::table[-1]{'row_number'} = -1;
1.222 sakharuk 1925: #maximum table's width (default coincides with text line length)
1.206 sakharuk 1926: if ($#Apache::londefdef::table==0) {
1.267 albertel 1927: $textwidth=&recalc($env{'form.textwidth'}); #result is always in mm
1.206 sakharuk 1928: $textwidth=~/(\d+\.?\d*)/;
1929: $textwidth=0.95*$1; #accounts "internal" LaTeX space for table frame
1930: } else {
1931: if ($Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}]=~/\d/) {
1932: #the maximum width of nested table is determined by LATeX width of parent cell
1933: $textwidth=$Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}];
1934: } else {
1935: #try to use all space not used before (minus 5% for LaTeX table internal) - rather silly
1.228 sakharuk 1936: $textwidth=$Apache::londefdef::table[-2]{'width'};
1.206 sakharuk 1937: for (my $i=0;$i<$Apache::londefdef::table[-2]{'counter_columns'};$i++) {
1938: $textwidth=$textwidth-$Apache::londefdef::table[-2]{'TeXlen'}[0][$i];
1939: }
1940: }
1941: }
1.294 foxr 1942:
1943: # width either comes forced from the TeXwidth or the width parameters.
1944: # in either case it can be a percentage or absolute width.
1.311 albertel 1945: # in the width case we ignore absolute width
1.126 sakharuk 1946: my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1.308 albertel 1947: if (!defined($TeXwidth)) {
1.311 albertel 1948: my $htmlwidth = &Apache::lonxml::get_param('width',$parstack,
1949: $safeeval,undef,1);
1950: if ($htmlwidth =~ /%/) {
1951: $TeXwidth = $htmlwidth;
1952: } else {
1953: $TeXwidth = $textwidth;
1954: }
1.294 foxr 1955: } else {
1956: $Apache::londefdef::table[-1]{'forcedtablewidth'} = 1;
1957: }
1958: if ($TeXwidth=~/%/) {
1.203 sakharuk 1959: $Apache::londefdef::table[-1]{'percent'}=1;
1.126 sakharuk 1960: $TeXwidth=~/(\d+)/;
1.206 sakharuk 1961: $Apache::londefdef::table[-1]{'width'}=$1*$textwidth/100;
1.126 sakharuk 1962: } else {
1.206 sakharuk 1963: $Apache::londefdef::table[-1]{'width'}=$TeXwidth;
1.316 foxr 1964: }
1965: # In the end, however the table width cannot be wider than $textwidth...
1966:
1967: if ($Apache::londefdef::table[-1]{'width'} > $textwidth) {
1968: $Apache::londefdef::table[-1]{'width'} = $textwidth;
1969: }
1.294 foxr 1970:
1.126 sakharuk 1971: #table's border
1.206 sakharuk 1972: my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval);
1.208 sakharuk 1973: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
1.91 sakharuk 1974: unless (defined $border) { $border = 0; }
1975: if ($border) {
1976: $Apache::londefdef::table[-1]{'hinc'} = '\hline ';
1977: $Apache::londefdef::table[-1]{'vinc'} = '&';
1978: $Apache::londefdef::table[-1]{'vvinc'} = '|';
1979: } else {
1980: $Apache::londefdef::table[-1]{'hinc'} = '';
1981: $Apache::londefdef::table[-1]{'vinc'} = '&';
1982: $Apache::londefdef::table[-1]{'vvinc'} = '';
1983: }
1.206 sakharuk 1984: if ($#Apache::londefdef::table==0) {
1.281 foxr 1985: # Note that \newline seems to destroy the alignment envs.
1986: # $Apache::londefdef::table[-1]{'output'}='\strut\newline\strut\setlength{\tabcolsep}{1 mm}';
1987: $Apache::londefdef::table[-1]{'output'}='\strut'.'\\\\'."\n".'\strut\setlength{\tabcolsep}{1 mm}';
1.206 sakharuk 1988: }
1989: $Apache::londefdef::table[-1]{'output'}.=' \noindent \begin{tabular} ';
1990: $Apache::londefdef::table[-1]{'TeXlen'}=[];
1991: $Apache::londefdef::table[-1]{'objectlen'}=[];
1.229 sakharuk 1992: $Apache::londefdef::table[-1]{'objectsignal'}=[];
1.206 sakharuk 1993: $Apache::londefdef::table[-1]{'maxlen'}=[];
1994: $Apache::londefdef::table[-1]{'minlen'}=[];
1995: $Apache::londefdef::table[-1]{'content'}=[];
1996: $Apache::londefdef::table[-1]{'align'}=[];
1.340 foxr 1997: if (&is_inside_of($tagstack, 'sup')) {
1998: $currentstring .= '}} \\\\ \ensuremath{^{ ';
1999: }
2000: if (&is_inside_of($tagstack, 'sub')) {
2001: $currentstring .= '}} \\\\ \ensuremath{_{ ';
2002: }
2003: $currentstring.=' \keephidden{NEW TABLE ENTRY}';
1.295 foxr 2004:
1.294 foxr 2005:
2006: }
1.91 sakharuk 2007: return $currentstring;
2008: }
1.122 albertel 2009:
2010: sub end_table {
2011: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2012: my $currentstring = '';
1.325 albertel 2013: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2014: $currentstring = $token->[2];
2015: } elsif ($target eq 'tex') {
2016: my $inmemory = '';
2017: my $output = '';
1.206 sakharuk 2018: my $WARNING='';
2019: #width of columns from TeXwidth attributes
1.294 foxr 2020:
1.206 sakharuk 2021: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2022: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2023: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]<$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn]) {
2024: $Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]=$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn];
2025: }
2026: }
2027: }
2028: #free space and number of empty columns
2029: my ($available_space,$empty_columns)=($Apache::londefdef::table[-1]{'width'},0);
1.228 sakharuk 2030: if ($#Apache::londefdef::table ne 0) {$available_space=0.9*$available_space;}
1.206 sakharuk 2031: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2032: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]==0) {
2033: $empty_columns++;
2034: } else {
2035: $available_space=$available_space-$Apache::londefdef::table[-1]{'TeXlen'}[0][$jn];
2036: }
2037: }
2038: #boundaries for contents columns
2039: my @min_len=();#columns can not be narrower
2040: my @max_len=();#maximum length of column
2041: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2042: my ($localmin,$localmax)=(0,0);
2043: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2044: if ($localmin<$Apache::londefdef::table[-1]{'minlen'}[$in][$jn]) {
2045: $localmin=$Apache::londefdef::table[-1]{'minlen'}[$in][$jn];
2046: }
2047: if ($localmax<$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn]) {
2048: $localmax=$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn];
2049: }
2050: }
2051: push @min_len, $localmin;
2052: push @max_len, $localmax;
1.122 albertel 2053: }
1.206 sakharuk 2054: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2055: my $localmin=0,;
2056: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2057: if ($localmin<$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn]) {
2058: $localmin=$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn];
2059: }
2060: }
1.229 sakharuk 2061: if ($max_len[$jn]<$localmin) {
2062: $max_len[$jn]=$localmin;
2063: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
2064: }#object size is bigger
2065: if ($min_len[$jn]<$localmin) {
2066: $min_len[$jn]=$localmin;
2067: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
2068: }#object size is bigger
1.206 sakharuk 2069: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]!=0) {
2070: $min_len[$jn]=0;
2071: $max_len[$jn]=0;
2072: }
2073: }
2074: #final adjustment of column width
2075: my @fwidth=@{$Apache::londefdef::table[-1]{'TeXlen'}[0]};#final width array
2076: my @adjust=();
2077: #step 1. adjustment by maximum value
2078: my $space_neeeded=0;
2079: for (my $jn=0;$jn<=$#max_len;$jn++) {
2080: $space_neeeded=$space_neeeded+$max_len[$jn];
2081: }
2082: if ($space_neeeded<=$available_space) {
2083: for (my $jn=0;$jn<=$#max_len;$jn++) {
2084: if ($fwidth[$jn]==0) {
2085: $fwidth[$jn]=$max_len[$jn];
1.53 sakharuk 2086: }
1.51 sakharuk 2087: }
1.206 sakharuk 2088: } else {
2089: #step 2. adjustment by minimum value (estimation)
2090: $space_neeeded=0;
2091: for (my $jn=0;$jn<=$#min_len;$jn++) {
2092: $space_neeeded+=$min_len[$jn];
2093: }
2094: if ($space_neeeded>$available_space) {
2095: $WARNING=' \textbf{NOT ENOUGH SPACE FOR TABLE} ';
2096: for (my $jn=0;$jn<=$#max_len;$jn++) {
2097: if ($fwidth[$jn]==0) {
2098: $fwidth[$jn]=$min_len[$jn];
2099: }
2100: }
1.229 sakharuk 2101: #check if we have objects which can be scaled
2102: my $how_many_to_scale=0;
2103: my @to_scale=();
2104: for (my $jn=0;$jn<=$#max_len;$jn++) {
2105: if ($Apache::londefdef::table[-1]{'objectsignal'}[$jn] eq '1') {
2106: $how_many_to_scale++;
2107: push @to_scale, $jn;
2108: }
2109: }
2110: if ($how_many_to_scale>0) {
2111: my $space_to_adjust=($space_neeeded-$available_space)/$how_many_to_scale;
2112: foreach my $jn (@to_scale) {
2113: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2114: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/;
2115: if ($1 ne '') {
2116: my $current_length=&recalc($1);
2117: $current_length=~/(\d+\.?\d*)/;
2118: $current_length=$current_length-$space_to_adjust;
2119: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/width=$current_length mm/;
2120: }
2121: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/\[(\d+\.?\d*)\s*mm\]/;
2122: if ($1 ne '') {
2123: my $current_length=$1;
2124: $current_length=$current_length-$space_to_adjust;
2125: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/\[(\d+\.?\d*)\s*mm\]/\[$current_length mm\]/;
2126: }
2127: }
2128: $fwidth[$jn]=$fwidth[$jn]-$space_to_adjust;
2129: }
2130: }
1.206 sakharuk 2131: } else {
2132: #step 3. adjustment over minimal + corrections
2133: my $enlarge_coef=$available_space/$space_neeeded;
2134: my $acsessive=0;
2135: for (my $jn=0;$jn<=$#min_len;$jn++) {
2136: $adjust[$jn]=$min_len[$jn]*$enlarge_coef;
2137: if ($adjust[$jn]>$max_len[$jn]) {
2138: $fwidth[$jn]=$max_len[$jn];
2139: $acsessive=$acsessive+$adjust[$jn]-$max_len[$jn];
2140: $adjust[$jn]=0;
2141: }
2142: }
2143: if ($acsessive>0) {
2144: #we have an excess of space and can redistribute it
2145: my $notempty_columns=0;
2146: for (my $jn=0;$jn<=$#min_len;$jn++) {
2147: if ($adjust[$jn]!=0) {
2148: $notempty_columns++;
2149: }
2150: }
2151: my $per_column=$acsessive/$notempty_columns;
2152: for (my $jn=0;$jn<=$#min_len;$jn++) {
2153: if ($adjust[$jn]!=0) {
2154: $adjust[$jn]+=$per_column;
2155: $fwidth[$jn]=$adjust[$jn];
2156: }
1.223 sakharuk 2157: }
2158: } else {
2159: for (my $jn=0;$jn<=$#min_len;$jn++) {
2160: $fwidth[$jn]=$adjust[$jn];
1.206 sakharuk 2161: }
2162: }
1.203 sakharuk 2163: }
2164: }
1.222 sakharuk 2165: #use all available width if it is defined in % or as TeXwidth
2166: if (($Apache::londefdef::table[-1]{'percent'}==1) || ($Apache::londefdef::table[-1]{'forcetablewidth'}==1)) {
1.203 sakharuk 2167: my $current=0;
1.206 sakharuk 2168: for (my $i=0;$i<=$#fwidth;$i++) {
2169: $current+=$fwidth[$i];
1.203 sakharuk 2170: }
2171: my $coef=$Apache::londefdef::table[-1]{'width'}/$current;
1.206 sakharuk 2172: for (my $i=0;$i<=$#fwidth;$i++) {
2173: $fwidth[$i]*=$coef;
2174: }
2175: }
2176: #removing of empty columns if allowed
1.208 sakharuk 2177: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
1.206 sakharuk 2178: if ($permission eq 'yes') {
2179: my @cleaned_table=();
2180: my @cleaned_header=();
2181: my $colind=0;
2182: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2183: if ($fwidth[$jn]!=0) {
2184: #we need to copy column
2185: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2186: $cleaned_table[$in][$colind]=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
2187: $cleaned_header[$colind]=$fwidth[$jn];
2188: }
2189: $colind++;
2190: }
1.122 albertel 2191: }
1.206 sakharuk 2192: $Apache::londefdef::table[-1]{'content'}=\@cleaned_table;
2193: @fwidth=@cleaned_header;
1.122 albertel 2194: }
1.206 sakharuk 2195: #construct header of the table
2196: my $header_of_table = '{'.$Apache::londefdef::table[-1]{'vvinc'};
2197: for (my $in=0;$in<=$#fwidth;$in++) {
2198: $header_of_table.='p{'.$fwidth[$in].' mm}'.$Apache::londefdef::table[-1]{'vvinc'};
2199: }
2200: $header_of_table .= '}';
1.126 sakharuk 2201: #fill the table
2202: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1.306 foxr 2203: my $have_rowspan = 0;
1.206 sakharuk 2204: for (my $jn=0;$jn<=$#fwidth;$jn++) {
1.320 foxr 2205:
2206: #-----------------------------------------------------------
2207: # I think this order of doing things will ensure that
2208: # single rowspan, columspan and combined row/colspans will
2209: # work correctly. LaTeX is delicate here.
2210: # RF.
2211:
2212: # Start a rowspan if necessary:
2213:
2214: my $rowspan = $Apache::londefdef::table[-1]{'rowspan'}[$in][$jn];
2215: my $colspan = $Apache::londefdef::table[-1]{'colspan'}[$in][$jn];
1.304 foxr 2216: #
2217: # Do the appropriate magic if this has a colspan
2218: #
1.320 foxr 2219:
1.304 foxr 2220: if ($colspan > 1) {
1.336 foxr 2221: my $spanwidth = 0;
2222: for (my $spancol = $jn; $spancol < $jn + $colspan; $spancol++) {
2223: $spanwidth += $fwidth[$spancol];
2224: }
1.304 foxr 2225: $output .= '\multicolumn{'.
2226: $colspan
1.337 foxr 2227: ."}";
2228: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
2229: $output .= '{|c|}{';
2230: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
2231: $output .= '{|r|}{';
2232: }
2233: else {
2234: $output .= "{|p{$spanwidth mm}|}{";
2235: }
2236:
1.304 foxr 2237: }
1.306 foxr 2238:
1.337 foxr 2239: # Rowspan... if colspan is 1, and there's an alignment we'll need
2240: # to kick in a multicolumn in order to get the alignment spec.
2241: # this must precede the multirow or LaTex gets quite upset.
2242: # Naturally if colspan > 1 we've already done that above ^
2243: #
2244: my $multirow_aligned = 0;
1.306 foxr 2245: if ($rowspan > 1) {
1.337 foxr 2246: if ($colspan == 1) {
2247: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
2248: $output .= '\multicolumn{1}{|c|}{';
2249: $multirow_aligned = 1;
2250: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
2251: $output .= '\multicolumn{1}{|r|}{';
2252: $multirow_aligned = 1;
2253: }
2254: }
1.306 foxr 2255: $have_rowspan++;
1.337 foxr 2256: $output .= '\multirow{'.$rowspan.'}[0]{*}{';
1.350 albertel 2257:
2258: $Apache::londefdef::table[-1]{'content'}[$in][$jn] =~
2259: s{^\s*\\par\s*}{};
2260: $Apache::londefdef::table[-1]{'content'}[$in][$jn] =~
2261: s{\s*\\vskip\s*0pt\s*$}{};
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: $have_rowspan++;
2275: }
1.320 foxr 2276: #--------------------------------------------------------------
1.306 foxr 2277:
1.337 foxr 2278:
2279: # For right and center alignment of single cells.
2280: # we are going to use a multicolumn with a span of 1 to specify alignment.
2281: #
2282: if ($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.'} ';
1.353 ! foxr 2882: $currentstring = &align_latex_image($align, $latex_rendering,
! 2883: $currentstring,
! 2884: $width_param, $height_param);
! 2885:
1.122 albertel 2886: } else {
1.261 foxr 2887: &Apache::lonxml::debug("$src does not exist");
1.122 albertel 2888: #original image file doesn't exist so check the alt attribute
2889: my $alt =
2890: &Apache::lonxml::get_param('alt',$parstack,$safeeval,undef,1);
2891: unless ($alt) {
2892: $alt=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
2893: }
2894:
1.256 albertel 2895: if ($alt) { $currentstring .= ' '.$alt.' '; }
1.59 sakharuk 2896: }
1.249 foxr 2897:
2898: # And here's where the semi-quote breaks down: allow the user
2899: # to edit the beast as well by rendering the problem for edit:
1.186 albertel 2900: } elsif ($target eq 'edit') {
2901: $currentstring .=&Apache::edit::tag_start($target,$token);
2902: $currentstring .=&Apache::edit::text_arg('Image Url:','src',$token,70).
2903: &Apache::edit::browse('src',undef,'alt').' '.
2904: &Apache::edit::search('src',undef,'alt').'<br />';
2905: $currentstring .=&Apache::edit::text_arg('Description:','alt',$token,70).'<br />';
2906: $currentstring .=&Apache::edit::text_arg('width (pixel):','width',$token,5);
2907: $currentstring .=&Apache::edit::text_arg('height (pixel):','height',$token,5).'<br />';
2908: $currentstring .=&Apache::edit::text_arg('TeXwidth (mm):','TeXwidth',$token,5);
2909: $currentstring .=&Apache::edit::text_arg('TeXheight (mm):','TeXheight',$token,5);
1.234 albertel 2910: $currentstring .=&Apache::edit::select_arg('Alignment:','align',
2911: ['','bottom','middle','top','left','right'],$token,5);
1.249 foxr 2912: $currentstring .=&Apache::edit::select_arg('TeXwrap:', 'TeXwrap',
1.348 albertel 2913: ['', 'none','parbox', 'parpic', 'wrapfigure'], $token, 2);
1.332 www 2914: $currentstring .=&Apache::edit::select_arg('Encrypt URL:','encrypturl',
1.322 albertel 2915: ['no','yes'], $token, 2);
1.186 albertel 2916: $currentstring .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1.249 foxr 2917: my $src= &Apache::lonxml::get_param('src',$parstack,$safeeval);
2918: my $alt= &Apache::lonxml::get_param('alt',$parstack,$safeeval);
2919: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
2920: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
2921:
2922:
1.186 albertel 2923: $currentstring .= '<img src="'.$src.'" alt="'.$alt.'" ';
2924: if ($width) { $currentstring.=' width="'.$width.'" '; }
2925: if ($height) { $currentstring.=' height="'.$height.'" '; }
2926: $currentstring .= ' />';
2927: } elsif ($target eq 'modified') {
1.210 albertel 2928: my ($osrc,$owidth,$oheight)=
2929: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2930: my $ctag=&Apache::edit::get_new_args($token,$parstack,
1.234 albertel 2931: $safeeval,'src','alt','align',
1.249 foxr 2932: 'TeXwidth','TeXheight', 'TeXwrap',
1.322 albertel 2933: 'width','height','encrypturl');
1.210 albertel 2934: my ($nsrc,$nwidth,$nheight)=
2935: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2936: my $loc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$nsrc);
2937: &image_replication($loc);
2938: my ($iwidth,$iheight);
2939: if (-e $loc) {
2940: my $image = Image::Magick->new;
2941: $image->Read($loc);
2942: ($iwidth, $iheight) = ($image->Get('width'),
2943: $image->Get('height'));
2944: }
2945: if ($osrc ne $nsrc || (!$nwidth && !$nheight)) {
2946: # changed image or no size specified,
2947: # if they didn't explicitly change the
2948: # width or height use the ones from the image
2949: if ($iwidth && $iheight) {
2950: if ($owidth == $nwidth || (!$nwidth && !$nheight)) {
2951: $token->[2]{'width'} = $iwidth;$ctag=1;
2952: }
2953: if ($oheight == $nheight || (!$nwidth && !$nheight)) {
2954: $token->[2]{'height'}=$iheight;$ctag=1;
1.186 albertel 2955: }
2956: }
2957: }
1.210 albertel 2958: my ($cwidth,$cheight)=($token->[2]{'width'},$token->[2]{'height'});
2959: # if we don't have a width or height
2960: if ($iwidth && $cwidth && !$cheight) {
2961: $token->[2]{'height'}=int(($cwidth/$iwidth)*$iheight);$ctag=1;
2962: }
2963: if ($iheight && $cheight && !$cwidth) {
2964: $token->[2]{'width'}=int(($cheight/$iheight)*$iwidth);$ctag=1;
2965: }
2966: if ($ctag) {$currentstring=&Apache::edit::rebuild_tag($token);}
1.122 albertel 2967: }
1.261 foxr 2968:
1.122 albertel 2969: return $currentstring;
2970: }
2971:
2972: sub end_img {
2973: my ($target,$token) = @_;
2974: my $currentstring = '';
1.325 albertel 2975: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2976: $currentstring = $token->[2];
2977: } elsif ($target eq 'tex') {
2978: $currentstring = '';
2979: }
2980: return $currentstring;
2981: }
2982:
1.181 sakharuk 2983: #-- <applet> tag (end tag required)
1.122 albertel 2984: sub start_applet {
2985: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2986:
2987: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,undef,1);
1.290 albertel 2988: &Apache::lonxml::extlink($code);
1.122 albertel 2989: my $archive=&Apache::lonxml::get_param('archive',$parstack,$safeeval,
2990: undef,1);
1.290 albertel 2991: &Apache::lonxml::extlink($archive);
1.122 albertel 2992: my $currentstring = '';
1.325 albertel 2993: if ($target eq 'web' || $target eq 'webgrade') {
1.267 albertel 2994: if ($env{'browser.appletsuppress'} ne 'on') {
1.250 albertel 2995: $currentstring = &Apache::lonenc::encrypt_ref($token,
2996: {'code'=>$code,
2997: 'archive'=>$archive}
2998: );
1.122 albertel 2999: } else {
3000: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
3001: $safeeval,undef,1);
3002: unless ($alttag) {
3003: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
3004: $code);
1.44 sakharuk 3005: }
1.122 albertel 3006: $currentstring='[APPLET: '.$alttag.']';
1.1 sakharuk 3007: }
1.122 albertel 3008: } elsif ($target eq 'tex') {
1.177 albertel 3009: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
3010: $safeeval,undef,1);
3011: unless ($alttag) {
3012: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,
3013: undef,1);
3014: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
3015: $code);
1.175 sakharuk 3016: }
1.177 albertel 3017: $currentstring.='\begin{center} \fbox{Java Applet: '.$alttag.
3018: '.}\end{center}';
1.122 albertel 3019: }
3020: return $currentstring;
3021: }
3022:
3023: sub end_applet {
3024: my ($target,$token) = @_;
3025: my $currentstring = '';
1.325 albertel 3026: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3027: $currentstring = $token->[2];
3028: } elsif ($target eq 'tex') {
3029: }
3030: return $currentstring;
3031: }
3032:
1.181 sakharuk 3033: #-- <embed> tag (end tag optional/required)
1.122 albertel 3034: sub start_embed {
3035: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3036: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
1.290 albertel 3037: &Apache::lonxml::extlink($src);
1.122 albertel 3038: my $currentstring = '';
1.325 albertel 3039: if ($target eq 'web' || $target eq 'webgrade') {
1.267 albertel 3040: if ($env{'browser.embedsuppress'} ne 'on') {
1.250 albertel 3041: $currentstring=&Apache::lonenc::encrypt_ref($token,{'src'=>$src});
1.122 albertel 3042: } else {
3043: my $alttag=&Apache::lonxml::get_param
3044: ('alt',$parstack,$safeeval,undef,1);
3045: unless ($alttag) {
3046: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
1.42 albertel 3047: }
1.122 albertel 3048: $currentstring='[EMBED: '.$alttag.']';
1.10 www 3049: }
1.122 albertel 3050: } elsif ($target eq 'tex') {
3051: }
3052: return $currentstring;
3053: }
3054:
3055: sub end_embed {
3056: my ($target,$token) = @_;
3057: my $currentstring = '';
1.325 albertel 3058: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3059: $currentstring = $token->[2];
1.175 sakharuk 3060: } elsif ($target eq 'tex') {
1.122 albertel 3061: }
3062: return $currentstring;
3063: }
3064:
1.181 sakharuk 3065: #-- <param> tag (end tag forbidden)
1.122 albertel 3066: sub start_param {
3067: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.290 albertel 3068: if (&Apache::lonxml::get_param('name',$parstack,
3069: $safeeval,undef,1)=~/^cabbase$/i) {
3070: my $value=&Apache::lonxml::get_param('value',$parstack,
3071: $safeeval,undef,1);
3072: &Apache::lonxml::extlink($value);
3073: }
3074:
3075: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
3076: &Apache::lonxml::extlink($src);
1.122 albertel 3077: my $currentstring = '';
1.325 albertel 3078: if ($target eq 'web' || $target eq 'webgrade') {
1.250 albertel 3079: my %toconvert;
3080: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
3081: if ($src) { $toconvert{'src'}= $src; }
3082: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval,
3083: undef,1);
1.251 albertel 3084: if ($name=~/^cabbase$/i) {
3085: $toconvert{'value'}=&Apache::lonxml::get_param('value',$parstack,
3086: $safeeval,undef,1);
3087: }
1.250 albertel 3088: $currentstring = &Apache::lonenc::encrypt_ref($token,\%toconvert);
1.122 albertel 3089: } elsif ($target eq 'tex') {
3090: }
3091: return $currentstring;
3092: }
3093:
3094: sub end_param {
3095: my ($target,$token) = @_;
3096: my $currentstring = '';
1.325 albertel 3097: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3098: $currentstring = $token->[2];
3099: } elsif ($target eq 'tex') {
3100: }
3101: return $currentstring;
3102: }
3103:
3104: #-- <allow> tag
3105: sub start_allow {
3106: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3107: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
1.290 albertel 3108: &Apache::lonxml::extlink($src);
3109:
1.241 albertel 3110: if ($target eq 'tex') { &image_replication($src); }
1.122 albertel 3111: my $result;
3112: if ($target eq 'edit') {
3113: $result .=&Apache::edit::tag_start($target,$token);
3114: $result .=&Apache::edit::text_arg('File Spec:','src',$token,70);
3115: $result .=&Apache::edit::end_row();#.&Apache::edit::start_spanning_row();
3116: } elsif ($target eq 'modified') {
3117: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
3118: $safeeval,'src');
3119: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
3120: }
3121: return $result;
3122: }
3123:
3124: sub end_allow {
3125: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3126: if ( $target eq 'edit') { return (&Apache::edit::end_table()); }
3127: return '';
3128: }
1.119 www 3129:
1.181 sakharuk 3130: #-- Frames (end tag required)
3131: #-- <frameset>
1.122 albertel 3132: sub start_frameset {
3133: my ($target,$token) = @_;
1.277 foxr 3134: my $currentstring = ''; # Close any pending para.
1.325 albertel 3135: if ($target eq 'web' || $target eq 'webgrade') {
1.328 albertel 3136: $currentstring =
3137: &Apache::loncommon::start_page($Apache::londefdef::title,
3138: $Apache::londefdef::head,
3139: {'add_entries' => $token->[2],
3140: 'no_title' => 1,
3141: 'force_register' => 1,
3142: 'frameset' => 1,});
3143:
1.122 albertel 3144: }
3145: return $currentstring;
3146: }
3147:
3148: sub end_frameset {
3149: my ($target,$token) = @_;
3150: my $currentstring = '';
1.325 albertel 3151: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3152: $currentstring = $token->[2];
3153: }
3154: return $currentstring;
3155: }
1.162 sakharuk 3156:
1.181 sakharuk 3157: #-- <xmp> (end tag required)
1.162 sakharuk 3158: sub start_xmp {
3159: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3160: my $currentstring = '';
1.325 albertel 3161: if ($target eq 'web' || $target eq 'webgrade') {
1.162 sakharuk 3162: $currentstring .= $token->[4];
3163: } elsif ($target eq 'tex') {
3164: $currentstring .= '\begin{verbatim}';
3165: }
3166: return $currentstring;
3167: }
3168:
3169: sub end_xmp {
3170: my ($target,$token) = @_;
3171: my $currentstring = '';
1.325 albertel 3172: if ($target eq 'web' || $target eq 'webgrade') {
1.162 sakharuk 3173: $currentstring .= $token->[2];
3174: } elsif ($target eq 'tex') {
3175: $currentstring .= '\end{verbatim}';
3176: }
3177: return $currentstring;
3178: }
3179:
1.181 sakharuk 3180: #-- <pre> (end tag required)
1.122 albertel 3181: sub start_pre {
1.126 sakharuk 3182: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 3183: my $currentstring = &end_p(); # close off pending <p>
1.325 albertel 3184: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3185: $currentstring .= $token->[4];
3186: } elsif ($target eq 'tex') {
1.136 sakharuk 3187: $currentstring .= '\begin{verbatim}';
1.319 albertel 3188: &Apache::lonxml::disable_LaTeX_substitutions();
1.122 albertel 3189: }
3190: return $currentstring;
3191: }
3192:
3193: sub end_pre {
3194: my ($target,$token) = @_;
3195: my $currentstring = '';
1.325 albertel 3196: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3197: $currentstring .= $token->[2];
3198: } elsif ($target eq 'tex') {
1.136 sakharuk 3199: $currentstring .= '\end{verbatim}';
1.319 albertel 3200: &Apache::lonxml::enable_LaTeX_substitutions();
1.122 albertel 3201: }
3202: return $currentstring;
3203: }
3204:
3205: #-- <insert>
3206: sub start_insert {
3207: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3208: my $currentstring = '';
1.325 albertel 3209: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3210: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
3211: $currentstring .= '<b>'.$display.'</b>';;
3212: }
3213: return $currentstring;
3214: }
3215:
3216: sub end_insert {
3217: my ($target,$token) = @_;
3218: my $currentstring = '';
1.325 albertel 3219: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3220: $currentstring .= '';
3221: }
3222: return $currentstring;
3223: }
3224:
3225: #-- <externallink>
3226: sub start_externallink {
3227: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3228: my $currentstring = '';
1.325 albertel 3229: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3230: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
3231: $currentstring .= '<b>'.$display.'</b>';;
3232: }
3233: return $currentstring;
3234: }
3235:
3236: sub end_externallink {
3237: my ($target,$token) = @_;
3238: my $currentstring = '';
1.325 albertel 3239: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3240: $currentstring .= '';
3241: }
3242: return $currentstring;
3243: }
3244:
3245: #-- <blankspace heigth="">
3246: sub start_blankspace {
3247: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 3248: my $currentstring = &end_p(); # closes off any unclosed <p>
1.122 albertel 3249: if ($target eq 'tex') {
3250: my $howmuch = &Apache::lonxml::get_param('heigth',$parstack,$safeeval,undef,1);
3251: $currentstring .= '\vskip '.$howmuch.' ';
3252: }
3253: return $currentstring;
3254: }
3255:
3256: sub end_blankspace {
3257: my ($target,$token) = @_;
3258: my $currentstring = '';
3259: if ($target eq 'tex') {
3260: $currentstring .= '';
3261: }
3262: return $currentstring;
3263: }
3264:
1.181 sakharuk 3265: #-- <abbr> tag (end tag required)
1.122 albertel 3266: sub start_abbr {
3267: my ($target,$token) = @_;
3268: my $currentstring = '';
1.325 albertel 3269: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3270: $currentstring = $token->[4];
3271: }
3272: return $currentstring;
3273: }
3274:
3275: sub end_abbr {
3276: my ($target,$token) = @_;
3277: my $currentstring = '';
1.325 albertel 3278: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3279: $currentstring = $token->[2];
3280: }
3281: return $currentstring;
3282: }
3283:
1.181 sakharuk 3284: #-- <acronym> tag (end tag required)
1.122 albertel 3285: sub start_acronym {
3286: my ($target,$token) = @_;
3287: my $currentstring = '';
1.325 albertel 3288: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3289: $currentstring = $token->[4];
3290: }
3291: return $currentstring;
3292: }
3293:
3294: sub end_acronym {
3295: my ($target,$token) = @_;
3296: my $currentstring = '';
1.325 albertel 3297: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3298: $currentstring = $token->[2];
3299: }
3300: return $currentstring;
3301: }
3302:
1.181 sakharuk 3303: #-- <area> tag (end tag forbidden)
1.122 albertel 3304: sub start_area {
3305: my ($target,$token) = @_;
3306: my $currentstring = '';
1.325 albertel 3307: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3308: $currentstring = $token->[4];
3309: }
3310: return $currentstring;
3311: }
3312:
3313: sub end_area {
3314: my ($target,$token) = @_;
3315: my $currentstring = '';
1.325 albertel 3316: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3317: $currentstring = $token->[2];
3318: }
3319: return $currentstring;
3320: }
3321:
1.181 sakharuk 3322: #-- <base> tag (end tag forbidden)
1.122 albertel 3323: sub start_base {
3324: my ($target,$token) = @_;
3325: my $currentstring = '';
1.325 albertel 3326: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3327: $currentstring = $token->[4];
1.161 sakharuk 3328: }
1.122 albertel 3329: return $currentstring;
3330: }
3331:
3332: sub end_base {
3333: my ($target,$token) = @_;
3334: my $currentstring = '';
1.325 albertel 3335: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3336: $currentstring = $token->[2];
3337: }
3338: return $currentstring;
3339: }
3340:
1.181 sakharuk 3341: #-- <bdo> tag (end tag required)
1.122 albertel 3342: sub start_bdo {
3343: my ($target,$token) = @_;
3344: my $currentstring = '';
1.325 albertel 3345: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3346: $currentstring = $token->[4];
3347: }
3348: return $currentstring;
3349: }
3350:
3351: sub end_bdo {
3352: my ($target,$token) = @_;
3353: my $currentstring = '';
1.325 albertel 3354: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3355: $currentstring = $token->[2];
3356: }
3357: return $currentstring;
3358: }
3359:
1.181 sakharuk 3360: #-- <bgsound> tag (end tag optional)
1.122 albertel 3361: sub start_bgsound {
3362: my ($target,$token) = @_;
3363: my $currentstring = '';
1.325 albertel 3364: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3365: $currentstring = $token->[4];
3366: }
3367: return $currentstring;
3368: }
3369:
3370: sub end_bgsound {
3371: my ($target,$token) = @_;
3372: my $currentstring = '';
1.325 albertel 3373: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3374: $currentstring = $token->[2];
3375: }
3376: return $currentstring;
3377: }
3378:
1.181 sakharuk 3379: #-- <blink> tag (end tag required)
1.122 albertel 3380: sub start_blink {
3381: my ($target,$token) = @_;
3382: my $currentstring = '';
1.325 albertel 3383: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3384: $currentstring = $token->[4];
3385: }
3386: return $currentstring;
3387: }
3388:
3389: sub end_blink {
3390: my ($target,$token) = @_;
3391: my $currentstring = '';
1.325 albertel 3392: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3393: $currentstring = $token->[2];
3394: }
3395: return $currentstring;
3396: }
3397:
1.181 sakharuk 3398: #-- <blockquote> tag (end tag required)
1.122 albertel 3399: sub start_blockquote {
3400: my ($target,$token) = @_;
1.279 foxr 3401: my $currentstring = &end_p(); # Close any unclosed <p>
1.325 albertel 3402: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 3403: $currentstring .= $token->[4];
1.122 albertel 3404: }
1.339 foxr 3405: if ($target eq 'tex') {
3406: $currentstring .= '\begin{quote}';
3407: }
1.122 albertel 3408: return $currentstring;
3409: }
3410:
3411: sub end_blockquote {
3412: my ($target,$token) = @_;
3413: my $currentstring = '';
1.325 albertel 3414: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3415: $currentstring = $token->[2];
3416: }
1.339 foxr 3417: if ($target eq 'tex') {
3418: $currentstring = '\end{quote}';
3419: }
1.122 albertel 3420: return $currentstring;
3421: }
3422:
1.181 sakharuk 3423: #-- <button> tag (end tag required)
1.122 albertel 3424: sub start_button {
3425: my ($target,$token) = @_;
3426: my $currentstring = '';
1.325 albertel 3427: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3428: $currentstring = $token->[4];
3429: }
3430: return $currentstring;
3431: }
3432:
3433: sub end_button {
3434: my ($target,$token) = @_;
3435: my $currentstring = '';
1.325 albertel 3436: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3437: $currentstring = $token->[2];
3438: }
3439: return $currentstring;
3440: }
3441:
1.181 sakharuk 3442: #-- <caption> tag (end tag required)
1.122 albertel 3443: sub start_caption {
3444: my ($target,$token) = @_;
3445: my $currentstring = '';
1.325 albertel 3446: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3447: $currentstring = $token->[4];
3448: }
3449: return $currentstring;
3450: }
3451:
3452: sub end_caption {
3453: my ($target,$token) = @_;
3454: my $currentstring = '';
1.325 albertel 3455: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3456: $currentstring = $token->[2];
3457: }
3458: return $currentstring;
3459: }
3460:
1.181 sakharuk 3461: #-- <col> tag (end tag forbdden)
1.122 albertel 3462: sub start_col {
3463: my ($target,$token) = @_;
3464: my $currentstring = '';
1.325 albertel 3465: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3466: $currentstring = $token->[4];
3467: }
3468: return $currentstring;
3469: }
3470:
3471: sub end_col {
3472: my ($target,$token) = @_;
3473: my $currentstring = '';
1.325 albertel 3474: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3475: $currentstring = $token->[2];
3476: }
3477: return $currentstring;
3478: }
3479:
1.181 sakharuk 3480: #-- <colgroup> tag (end tag optional)
1.122 albertel 3481: sub start_colgroup {
3482: my ($target,$token) = @_;
3483: my $currentstring = '';
1.325 albertel 3484: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3485: $currentstring = $token->[4];
3486: }
3487: return $currentstring;
3488: }
3489:
3490: sub end_colgroup {
3491: my ($target,$token) = @_;
3492: my $currentstring = '';
1.325 albertel 3493: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3494: $currentstring = $token->[2];
3495: }
3496: return $currentstring;
3497: }
3498:
1.181 sakharuk 3499: #-- <del> tag (end tag required)
1.122 albertel 3500: sub start_del {
3501: my ($target,$token) = @_;
3502: my $currentstring = '';
1.325 albertel 3503: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3504: $currentstring = $token->[4];
3505: }
3506: return $currentstring;
3507: }
3508:
3509: sub end_del {
3510: my ($target,$token) = @_;
3511: my $currentstring = '';
1.325 albertel 3512: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3513: $currentstring = $token->[2];
3514: }
3515: return $currentstring;
3516: }
3517:
1.181 sakharuk 3518: #-- <fieldset> tag (end tag required)
1.122 albertel 3519: sub start_fieldset {
3520: my ($target,$token) = @_;
3521: my $currentstring = '';
1.325 albertel 3522: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3523: $currentstring = $token->[4];
3524: }
3525: return $currentstring;
3526: }
3527:
3528: sub end_fieldset {
3529: my ($target,$token) = @_;
3530: my $currentstring = '';
1.325 albertel 3531: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3532: $currentstring = $token->[2];
3533: }
3534: return $currentstring;
3535: }
3536:
1.181 sakharuk 3537: #-- <frame> tag (end tag forbidden)
1.122 albertel 3538: sub start_frame {
3539: my ($target,$token) = @_;
3540: my $currentstring = '';
1.325 albertel 3541: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3542: $currentstring = $token->[4];
3543: }
3544: return $currentstring;
3545: }
3546:
3547: sub end_frame {
3548: my ($target,$token) = @_;
3549: my $currentstring = '';
1.325 albertel 3550: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3551: $currentstring = $token->[2];
3552: }
3553: return $currentstring;
3554: }
3555:
1.181 sakharuk 3556: #-- <iframe> tag (end tag required)
1.122 albertel 3557: sub start_iframe {
3558: my ($target,$token) = @_;
3559: my $currentstring = '';
1.325 albertel 3560: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3561: $currentstring = $token->[4];
3562: }
3563: return $currentstring;
3564: }
3565:
3566: sub end_iframe {
3567: my ($target,$token) = @_;
3568: my $currentstring = '';
1.325 albertel 3569: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3570: $currentstring = $token->[2];
3571: }
3572: return $currentstring;
3573: }
3574:
1.181 sakharuk 3575: #-- <ins> tag (end tag required)
1.122 albertel 3576: sub start_ins {
3577: my ($target,$token) = @_;
3578: my $currentstring = '';
1.325 albertel 3579: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3580: $currentstring = $token->[4];
3581: }
3582: return $currentstring;
3583: }
3584:
3585: sub end_ins {
3586: my ($target,$token) = @_;
3587: my $currentstring = '';
1.325 albertel 3588: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3589: $currentstring = $token->[2];
3590: }
3591: return $currentstring;
3592: }
3593:
1.181 sakharuk 3594: #-- <isindex> tag (end tag forbidden)
1.122 albertel 3595: sub start_isindex {
3596: my ($target,$token) = @_;
3597: my $currentstring = '';
1.325 albertel 3598: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3599: $currentstring = $token->[4];
3600: }
3601: return $currentstring;
3602: }
3603:
3604: sub end_isindex {
3605: my ($target,$token) = @_;
3606: my $currentstring = '';
1.325 albertel 3607: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3608: $currentstring = $token->[2];
3609: }
3610: return $currentstring;
3611: }
3612:
1.181 sakharuk 3613: #-- <keygen> tag (end tag forbidden)
1.122 albertel 3614: sub start_keygen {
3615: my ($target,$token) = @_;
3616: my $currentstring = '';
1.325 albertel 3617: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3618: $currentstring = $token->[4];
3619: }
3620: return $currentstring;
3621: }
3622:
3623: sub end_keygen {
3624: my ($target,$token) = @_;
3625: my $currentstring = '';
1.325 albertel 3626: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3627: $currentstring = $token->[2];
3628: }
3629: return $currentstring;
3630: }
3631:
3632: #-- <label> tag
3633: sub start_label {
3634: my ($target,$token) = @_;
3635: my $currentstring = '';
1.325 albertel 3636: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3637: $currentstring = $token->[4];
3638: }
3639: return $currentstring;
3640: }
3641:
3642: sub end_label {
3643: my ($target,$token) = @_;
3644: my $currentstring = '';
1.325 albertel 3645: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3646: $currentstring = $token->[2];
3647: }
3648: return $currentstring;
3649: }
3650:
1.181 sakharuk 3651: #-- <layer> tag (end tag required)
1.122 albertel 3652: sub start_layer {
3653: my ($target,$token) = @_;
3654: my $currentstring = '';
1.325 albertel 3655: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3656: $currentstring = $token->[4];
3657: }
3658: return $currentstring;
3659: }
3660:
3661: sub end_layer {
3662: my ($target,$token) = @_;
3663: my $currentstring = '';
1.325 albertel 3664: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3665: $currentstring = $token->[2];
3666: }
3667: return $currentstring;
3668: }
3669:
1.181 sakharuk 3670: #-- <legend> tag (end tag required)
1.122 albertel 3671: sub start_legend {
3672: my ($target,$token) = @_;
3673: my $currentstring = '';
1.325 albertel 3674: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3675: $currentstring = $token->[4];
3676: }
3677: return $currentstring;
3678: }
3679:
3680: sub end_legend {
3681: my ($target,$token) = @_;
3682: my $currentstring = '';
1.325 albertel 3683: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3684: $currentstring = $token->[2];
3685: }
3686: return $currentstring;
3687: }
3688:
1.181 sakharuk 3689: #-- <link> tag (end tag forbidden)
1.122 albertel 3690: sub start_link {
1.292 albertel 3691: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 3692: my $currentstring = '';
1.324 albertel 3693: if ($target eq 'web' || $target eq 'webgrade') {
1.291 albertel 3694: my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
3695: undef,1);
3696: &Apache::lonxml::extlink($href);
1.122 albertel 3697: $currentstring = $token->[4];
3698: }
3699: return $currentstring;
3700: }
3701:
3702: sub end_link {
3703: my ($target,$token) = @_;
3704: my $currentstring = '';
1.325 albertel 3705: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3706: $currentstring = $token->[2];
3707: }
3708: return $currentstring;
3709: }
3710:
1.181 sakharuk 3711: #-- <marquee> tag (end tag optional)
1.122 albertel 3712: sub start_marquee {
3713: my ($target,$token) = @_;
3714: my $currentstring = '';
1.325 albertel 3715: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3716: $currentstring = $token->[4];
3717: }
3718: return $currentstring;
3719: }
3720:
3721: sub end_marquee {
3722: my ($target,$token) = @_;
3723: my $currentstring = '';
1.325 albertel 3724: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3725: $currentstring = $token->[2];
3726: }
3727: return $currentstring;
3728: }
3729:
1.179 sakharuk 3730: #-- <multicol> tag (end tag required)
3731: sub start_multicol {
1.122 albertel 3732: my ($target,$token) = @_;
1.279 foxr 3733: my $currentstring = &end_p(); # Close any pending <p>
1.325 albertel 3734: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 3735: $currentstring .= $token->[4];
1.122 albertel 3736: }
3737: return $currentstring;
3738: }
3739:
1.179 sakharuk 3740: sub end_multicol {
1.122 albertel 3741: my ($target,$token) = @_;
3742: my $currentstring = '';
1.325 albertel 3743: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3744: $currentstring = $token->[2];
3745: }
3746: return $currentstring;
3747: }
3748:
1.179 sakharuk 3749: #-- <nobr> tag (end tag required)
1.122 albertel 3750: sub start_nobr {
3751: my ($target,$token) = @_;
3752: my $currentstring = '';
1.325 albertel 3753: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3754: $currentstring = $token->[4];
1.179 sakharuk 3755: } elsif ($target eq 'tex') {
3756: $currentstring='\mbox{';
3757: }
1.122 albertel 3758: return $currentstring;
3759: }
3760:
3761: sub end_nobr {
3762: my ($target,$token) = @_;
3763: my $currentstring = '';
1.325 albertel 3764: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3765: $currentstring = $token->[2];
1.179 sakharuk 3766: } elsif ($target eq 'tex') {
3767: $currentstring='}';
3768: }
1.122 albertel 3769: return $currentstring;
3770: }
3771:
1.179 sakharuk 3772: #-- <noembed> tag (end tag required)
1.122 albertel 3773: sub start_noembed {
3774: my ($target,$token) = @_;
3775: my $currentstring = '';
1.325 albertel 3776: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3777: $currentstring = $token->[4];
3778: }
3779: return $currentstring;
3780: }
3781:
3782: sub end_noembed {
3783: my ($target,$token) = @_;
3784: my $currentstring = '';
1.325 albertel 3785: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3786: $currentstring = $token->[2];
3787: }
3788: return $currentstring;
3789: }
3790:
1.179 sakharuk 3791: #-- <noframes> tag (end tag required)
1.122 albertel 3792: sub start_noframes {
3793: my ($target,$token) = @_;
3794: my $currentstring = '';
1.325 albertel 3795: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3796: $currentstring = $token->[4];
3797: }
3798: return $currentstring;
3799: }
3800:
3801: sub end_noframes {
3802: my ($target,$token) = @_;
3803: my $currentstring = '';
1.325 albertel 3804: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3805: $currentstring = $token->[2];
3806: }
3807: return $currentstring;
3808: }
3809:
1.179 sakharuk 3810: #-- <nolayer> tag (end tag required)
1.122 albertel 3811: sub start_nolayer {
3812: my ($target,$token) = @_;
3813: my $currentstring = '';
1.325 albertel 3814: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3815: $currentstring = $token->[4];
3816: }
3817: return $currentstring;
3818: }
3819:
3820: sub end_nolayer {
3821: my ($target,$token) = @_;
3822: my $currentstring = '';
1.325 albertel 3823: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3824: $currentstring = $token->[2];
3825: }
3826: return $currentstring;
3827: }
3828:
1.179 sakharuk 3829: #-- <noscript> tag (end tag required)
1.122 albertel 3830: sub start_noscript {
3831: my ($target,$token) = @_;
3832: my $currentstring = '';
1.325 albertel 3833: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3834: $currentstring = $token->[4];
3835: }
3836: return $currentstring;
3837: }
3838:
3839: sub end_noscript {
3840: my ($target,$token) = @_;
3841: my $currentstring = '';
1.325 albertel 3842: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3843: $currentstring = $token->[2];
3844: }
3845: return $currentstring;
3846: }
3847:
1.179 sakharuk 3848: #-- <object> tag (end tag required)
1.122 albertel 3849: sub start_object {
3850: my ($target,$token) = @_;
3851: my $currentstring = '';
1.325 albertel 3852: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3853: $currentstring = $token->[4];
3854: }
3855: return $currentstring;
3856: }
3857:
3858: sub end_object {
3859: my ($target,$token) = @_;
3860: my $currentstring = '';
1.325 albertel 3861: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3862: $currentstring = $token->[2];
3863: }
3864: return $currentstring;
3865: }
3866:
1.179 sakharuk 3867: #-- <optgroup> tag (end tag required)
1.122 albertel 3868: sub start_optgroup {
3869: my ($target,$token) = @_;
3870: my $currentstring = '';
1.325 albertel 3871: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3872: $currentstring = $token->[4];
3873: }
3874: return $currentstring;
3875: }
3876:
3877: sub end_optgroup {
3878: my ($target,$token) = @_;
3879: my $currentstring = '';
1.325 albertel 3880: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3881: $currentstring = $token->[2];
3882: }
3883: return $currentstring;
3884: }
3885:
1.179 sakharuk 3886: #-- <samp> tag (end tag required)
1.122 albertel 3887: sub start_samp {
3888: my ($target,$token) = @_;
3889: my $currentstring = '';
1.325 albertel 3890: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3891: $currentstring = $token->[4];
1.179 sakharuk 3892: } elsif ($target eq 'tex') {
3893: $currentstring='\texttt{';
3894: }
1.122 albertel 3895: return $currentstring;
3896: }
3897:
3898: sub end_samp {
3899: my ($target,$token) = @_;
3900: my $currentstring = '';
1.325 albertel 3901: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3902: $currentstring = $token->[2];
1.179 sakharuk 3903: } elsif ($target eq 'tex') {
3904: $currentstring='}';
3905: }
1.122 albertel 3906: return $currentstring;
3907: }
3908:
3909: #-- <server> tag
3910: sub start_server {
3911: my ($target,$token) = @_;
3912: my $currentstring = '';
1.325 albertel 3913: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3914: $currentstring = $token->[4];
3915: }
3916: return $currentstring;
3917: }
3918:
3919: sub end_server {
3920: my ($target,$token) = @_;
3921: my $currentstring = '';
1.325 albertel 3922: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3923: $currentstring = $token->[2];
3924: }
3925: return $currentstring;
3926: }
3927:
1.179 sakharuk 3928: #-- <spacer> tag (end tag forbidden)
1.122 albertel 3929: sub start_spacer {
3930: my ($target,$token) = @_;
1.279 foxr 3931: my $currentstring = &end_p(); # Close off any open <p> tag.
1.325 albertel 3932: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 3933: $currentstring .= $token->[4];
1.122 albertel 3934: }
3935: return $currentstring;
3936: }
3937:
3938: sub end_spacer {
3939: my ($target,$token) = @_;
3940: my $currentstring = '';
1.325 albertel 3941: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3942: $currentstring = $token->[2];
3943: }
3944: return $currentstring;
3945: }
3946:
1.179 sakharuk 3947: #-- <span> tag (end tag required)
1.122 albertel 3948: sub start_span {
3949: my ($target,$token) = @_;
3950: my $currentstring = '';
1.325 albertel 3951: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3952: $currentstring = $token->[4];
3953: }
3954: return $currentstring;
3955: }
3956:
3957: sub end_span {
3958: my ($target,$token) = @_;
3959: my $currentstring = '';
1.325 albertel 3960: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3961: $currentstring = $token->[2];
3962: }
3963: return $currentstring;
3964: }
3965:
1.179 sakharuk 3966: #-- <tbody> tag (end tag optional)
1.122 albertel 3967: sub start_tbody {
3968: my ($target,$token) = @_;
3969: my $currentstring = '';
1.325 albertel 3970: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3971: $currentstring = $token->[4];
3972: }
3973: return $currentstring;
3974: }
3975:
3976: sub end_tbody {
3977: my ($target,$token) = @_;
3978: my $currentstring = '';
1.325 albertel 3979: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3980: $currentstring = $token->[2];
3981: }
3982: return $currentstring;
3983: }
3984:
1.166 sakharuk 3985: #-- <tfoot> tag (end tag optional)
1.122 albertel 3986: sub start_tfoot {
3987: my ($target,$token) = @_;
3988: my $currentstring = '';
1.325 albertel 3989: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3990: $currentstring = $token->[4];
3991: }
3992: return $currentstring;
3993: }
3994:
3995: sub end_tfoot {
3996: my ($target,$token) = @_;
3997: my $currentstring = '';
1.325 albertel 3998: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3999: $currentstring = $token->[2];
4000: }
4001: return $currentstring;
4002: }
4003:
1.166 sakharuk 4004: #-- <thead> tag (end tag optional)
1.122 albertel 4005: sub start_thead {
4006: my ($target,$token) = @_;
4007: my $currentstring = '';
1.325 albertel 4008: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4009: $currentstring = $token->[4];
4010: }
4011: return $currentstring;
4012: }
1.10 www 4013:
1.122 albertel 4014: sub end_thead {
4015: my ($target,$token) = @_;
4016: my $currentstring = '';
1.325 albertel 4017: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4018: $currentstring = $token->[2];
4019: }
4020: return $currentstring;
4021: }
1.119 www 4022:
1.122 albertel 4023: #-- <var> tag
4024: sub start_var {
1.44 sakharuk 4025: my ($target,$token) = @_;
4026: my $currentstring = '';
1.325 albertel 4027: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4028: $currentstring = $token->[4];
1.163 sakharuk 4029: } elsif ($target eq 'tex') {
4030: $currentstring = '\textit{';
4031: }
1.44 sakharuk 4032: return $currentstring;
4033: }
1.10 www 4034:
1.122 albertel 4035: sub end_var {
4036: my ($target,$token) = @_;
1.44 sakharuk 4037: my $currentstring = '';
1.325 albertel 4038: if ($target eq 'web' || $target eq 'webgrade') {
1.163 sakharuk 4039: $currentstring = $token->[2];
4040: } elsif ($target eq 'tex') {
4041: $currentstring = '}';
1.44 sakharuk 4042: }
4043: return $currentstring;
4044: }
1.119 www 4045:
1.163 sakharuk 4046: #-- <wbr> tag (end tag forbidden)
1.122 albertel 4047: sub start_wbr {
4048: my ($target,$token) = @_;
4049: my $currentstring = '';
1.325 albertel 4050: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4051: $currentstring = $token->[4];
4052: }
4053: return $currentstring;
1.98 albertel 4054: }
4055:
1.122 albertel 4056: sub end_wbr {
4057: my ($target,$token) = @_;
4058: my $currentstring = '';
1.325 albertel 4059: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4060: $currentstring = $token->[2];
4061: }
4062: return $currentstring;
1.98 albertel 4063: }
1.134 sakharuk 4064:
4065: #-- <hideweboutput> tag
4066: sub start_hideweboutput {
4067: my ($target,$token) = @_;
1.325 albertel 4068: if ($target eq 'web' || $target eq 'webgrade') {
1.134 sakharuk 4069: &Apache::lonxml::startredirection();
4070: }
4071: return '';
4072: }
4073:
4074: sub end_hideweboutput {
4075: my ($target,$token) = @_;
4076: my $currentstring = '';
1.325 albertel 4077: if ($target eq 'web' || $target eq 'webgrade') {
1.134 sakharuk 4078: $currentstring = &Apache::lonxml::endredirection();
4079: }
4080: return '';
4081: }
4082:
1.94 sakharuk 4083:
4084: sub image_replication {
4085: my $src = shift;
1.187 albertel 4086: if (not -e $src) { &Apache::lonnet::repcopy($src); }
4087: #replicates eps or ps
4088: my $epssrc = my $pssrc = $src;
4089: $epssrc =~ s/\.(gif|jpg|jpeg|png)$/.eps/i;
4090: $pssrc =~ s/\.(gif|jpg|jpeg|png)$/.ps/i;
4091: if (not -e $epssrc && not -e $pssrc) {
4092: my $result=&Apache::lonnet::repcopy($epssrc);
1.264 raeburn 4093: if ($result ne 'ok') { &Apache::lonnet::repcopy($pssrc); }
1.94 sakharuk 4094: }
4095: return '';
1.195 sakharuk 4096: }
1.275 foxr 4097: #
4098: # Get correct sizing parameter for an image given
4099: # it's initial ht. and wid. This allows sizing of
4100: # images that are generated on-the-fly (e.g. gnuplot)
4101: # as well as serving as a utility for image_size.
4102: #
4103: # Parameter:
4104: # height_param
4105: # width_param - Initial picture dimensions.
4106: # scaling - A scale factor.
4107: # parstack, - the current stack of tag attributes
4108: # from the xml parser
4109: # safeeval, - pointer to the safespace
4110: # depth, - from what level in the stack to look for attributes
4111: # (assumes -1 if unspecified)
4112: # cis - look for attrubutes case insensitively
4113: # (assumes false)
4114: #
4115: # Returns:
4116: # height, width - new dimensions.
4117: #
4118: sub resize_image {
4119: my ($height_param, $width_param, $scaling,
4120: $parstack, $safeeval, $depth, $cis) = @_;
4121:
4122: # First apply the scaling...
1.271 foxr 4123:
1.275 foxr 4124: $height_param = $height_param * $scaling;
4125: $width_param = $width_param * $scaling;
1.261 foxr 4126:
1.197 sakharuk 4127: #do we have any specified LaTeX size of the picture?
1.261 foxr 4128: my $toget='TeXwidth';
4129: if ($cis) {
4130: $toget=lc($toget);
4131: }
1.256 albertel 4132: my $TeXwidth = &Apache::lonxml::get_param($toget,$parstack,
4133: $safeeval,$depth,$cis);
4134: $toget='TeXheight'; if ($cis) { $toget=lc($toget); }
4135: my $TeXheight = &Apache::lonxml::get_param($toget,$parstack,
4136: $safeeval,$depth,$cis);
1.197 sakharuk 4137: #do we have any specified web size of the picture?
4138: my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval,
1.256 albertel 4139: $depth,1);
4140: if ($TeXwidth) {
1.252 matthew 4141: my $old_width_param=$width_param;
1.197 sakharuk 4142: if ($TeXwidth=~/(\d+)\s*\%/) {
1.267 albertel 4143: $width_param = $1*$env{'form.textwidth'}/100;
1.197 sakharuk 4144: } else {
4145: $width_param = $TeXwidth;
4146: }
1.266 albertel 4147: if ($TeXheight) {
4148: $height_param = $TeXheight;
4149: } elsif ($old_width_param) {
4150: $height_param=$TeXwidth/$old_width_param*$height_param;
4151: }
1.256 albertel 4152: } elsif ($TeXheight) {
1.248 foxr 4153: $height_param = $TeXheight;
1.266 albertel 4154: if ($height_param) {
4155: $width_param = $TeXheight/$height_param*$width_param;
4156: }
1.256 albertel 4157: } elsif ($width) {
1.252 matthew 4158: my $old_width_param=$width_param;
1.256 albertel 4159: $width_param = $width*$scaling;
1.266 albertel 4160: if ($old_width_param) {
4161: $height_param=$width_param/$old_width_param*$height_param;
4162: }
1.252 matthew 4163: }
1.267 albertel 4164: if ($width_param > $env{'form.textwidth'}) {
1.252 matthew 4165: my $old_width_param=$width_param;
1.267 albertel 4166: $width_param =0.95*$env{'form.textwidth'};
1.266 albertel 4167: if ($old_width_param) {
4168: $height_param=$width_param/$old_width_param*$height_param;
4169: }
1.197 sakharuk 4170: }
1.275 foxr 4171:
4172: return ($height_param, $width_param);
4173: }
4174:
4175: sub image_size {
4176: my ($src,$scaling,$parstack,$safeeval,$depth,$cis)=@_;
4177:
4178: #size of image from gif/jpg/jpeg/png
4179: my $ressrc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
4180: if (-e $ressrc) {
4181: $src = $ressrc;
4182: }
4183: my $image = Image::Magick->new;
4184: my $current_figure = $image->Read($src);
4185: my $width_param = $image->Get('width');
4186: my $height_param = $image->Get('height');
4187: &Apache::lonxml::debug("Image magick says: $src : Height = $height_param width = $width_param");
4188: undef($image);
4189:
4190: ($height_param, $width_param) = &resize_image($height_param, $width_param,
4191: $scaling, $parstack, $safeeval,
4192: $depth, $cis);
4193:
1.248 foxr 4194: return ($height_param, $width_param);
4195: }
4196:
4197: sub image_width {
4198: my ($height, $width) = &image_size(@_);
4199: return $width;
4200: }
4201: # Not yet 100% sure this is correct in all circumstances..
4202: # due to my uncertainty about mods to image_size.
4203: #
4204: sub image_height {
4205: my ($height, $width) = &image_size(@_);
4206: return $height;
1.197 sakharuk 4207: }
4208:
1.256 albertel 4209: sub get_eps_image {
4210: my ($src)=@_;
1.261 foxr 4211: my $orig_src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1], $src);
1.285 foxr 4212:
4213: # In order to prevent the substitution of the alt text, we need to
4214: # be sure the orig_src file is on system now so:
4215:
4216: if (! -e $orig_src) {
4217: &Apache::lonnet::repcopy($orig_src); # Failure is not completely fatal.
4218: }
1.275 foxr 4219: &Apache::lonxml::debug("get_eps_image: Original image: $orig_src");
1.344 albertel 4220: my ($spath, $sname, $sext) = &fileparse($src, qr/\.(gif|png|jpg|jpeg)/i);
1.256 albertel 4221: $src=~s/\.(gif|png|jpg|jpeg)$/\.eps/i;
4222: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.275 foxr 4223: &Apache::lonxml::debug("Filelocation gives: $src");
1.256 albertel 4224: if (! -e $src) {
1.261 foxr 4225: &Apache::lonxml::debug("$src does not exist");
1.264 raeburn 4226: if (&Apache::lonnet::repcopy($src) ne 'ok' ) {
1.261 foxr 4227: &Apache::lonxml::debug("Repcopy of $src failed (1)");
1.256 albertel 4228: #if replication failed try to find ps file
4229: $src=~s/\.eps$/\.ps/;
1.261 foxr 4230: &Apache::lonxml::debug("Now looking for $src");
1.270 foxr 4231: #if no ps file try to replicate it.
4232: my $didrepcopy = &Apache::lonnet::repcopy($src);
4233: &Apache::lonxml::debug("repcopy of $src ... $didrepcopy");
4234: if ( (not -e $src) ||
4235: ($didrepcopy ne 'ok')) {
1.261 foxr 4236: &Apache::lonxml::debug("Failed to find or replicate $src");
4237:
1.256 albertel 4238: #if replication failed try to produce eps file dynamically
4239: $src=~s/\.ps$/\.eps/;
4240: my $temp_file;
1.267 albertel 4241: open(FILE,">>/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat");
1.256 albertel 4242: my $newsrc=$orig_src;
4243: $newsrc =~ s|(.*)/res/|/home/httpd/html/res/|;
1.275 foxr 4244: &Apache::lonxml::debug("queueing $newsrc for dynamic eps production.");
1.344 albertel 4245: print FILE ("$newsrc\n");
4246: close(FILE);
1.256 albertel 4247: $src=~s|/home/httpd/html/res|/home/httpd/prtspool|;
4248: $src=~s|/home/([^/]*)/public_html/|/home/httpd/prtspool/$1/|;
1.283 albertel 4249: if ($sext ne "") { # Put the ext. back in to uniquify.
4250: $src =~ s/\.eps$/$sext.eps/;
4251: }
1.341 foxr 4252:
1.256 albertel 4253: }
1.343 foxr 4254:
1.256 albertel 4255: }
1.341 foxr 4256: } else {
4257: # If the postscript file has spaces in its name,
4258: # LaTeX will gratuitiously vomit. Therefore
4259: # queue such files for copy with " " replaced by "_".
4260: # printout.pm will know them by their .ps or .eps extensions.
4261: my $newsrc = $orig_src;
4262: $newsrc =~ s|(.*)/res/|/home/httpd/html/res/|;
4263: open(FILE,">>/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat");
1.343 foxr 4264: print FILE "$src\n";
1.341 foxr 4265: close FILE;
4266: $src=~s|/home/httpd/html/res|/home/httpd/prtspool|;
4267: $src=~s|/home/([^/]*)/public_html/|/home/httpd/prtspool/$1/|;
1.256 albertel 4268: }
4269: my ($path,$file)=($src=~m|(.*)/([^/]*)$|);
1.344 albertel 4270: $path =~ s/ /\_/g;
1.343 foxr 4271: $file =~ s/ /\_/g;
1.261 foxr 4272: &Apache::lonxml::debug("get_eps_image returning: $path / $file<BR />");
1.256 albertel 4273: return ($path.'/',$file);
4274: }
4275:
1.195 sakharuk 4276: sub eps_generation {
4277: my ($src,$file,$width_param) = @_;
1.267 albertel 4278: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat";
1.195 sakharuk 4279: my $temp_file = Apache::File->new('>>'.$filename);
4280: print $temp_file "$src\n";
4281: my $newsrc = $src;
4282: $newsrc =~ s/(\.gif|\.jpg|\.jpeg)$/\.eps/i;
1.345 albertel 4283: $newsrc=~s{/home/httpd/html/res}{};
4284: $newsrc=~s{/home/($LONCAPA::username_re)/public_html/}{/$1/};
4285: $newsrc=~s{/\./}{/};
4286: $newsrc=~s{/([^/]+)\.(ps|eps)}{/};
4287: if ($newsrc=~m{/home/httpd/lonUsers/}) {
4288: $newsrc=~s{/home/httpd/lonUsers}{};
4289: $newsrc=~s{/($LONCAPA::domain_re)/./././}{/$1/};
1.213 sakharuk 4290: }
1.345 albertel 4291: if ($newsrc=~m{/userfiles/}) {
1.239 sakharuk 4292: return ' \graphicspath{{'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4293: } else {
4294: return ' \graphicspath{{/home/httpd/prtspool'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4295: }
1.197 sakharuk 4296: }
4297:
4298: sub file_path {
4299: my $src=shift;
4300: my ($file,$path);
4301: if ($src =~ m!(.*)/([^/]*)$!) {
4302: $file = $2;
4303: $path = $1.'/';
4304: }
4305: return $file,$path;
1.126 sakharuk 4306: }
1.294 foxr 4307: # Converts a measurement in to mm from any of
4308: # the other valid LaTeX units of measure.
4309: # If the units of measure are missing from the
4310: # parameter, it is assumed to be in and returned
4311: # with mm units of measure
1.126 sakharuk 4312: sub recalc {
4313: my $argument = shift;
4314: if (not $argument=~/(mm|cm|in|pc|pt)/) {return $argument.' mm';}
1.132 sakharuk 4315: $argument=~/\s*(\d+\.?\d*)\s*(mm|cm|in|pc|pt)/;
1.126 sakharuk 4316: my $value=$1;
4317: my $units=$2;
4318: if ($units eq 'cm') {
4319: $value*=10;
4320: } elsif ($units eq 'in') {
4321: $value*=25.4;
4322: } elsif ($units eq 'pc') {
4323: $value*=(25.4*12/72.27);
4324: } elsif ($units eq 'pt') {
4325: $value*=(25.4/72.27);
4326: }
4327: return $value.' mm';
1.94 sakharuk 4328: }
1.184 sakharuk 4329:
4330: sub LATEX_length {
4331: my $garbage=shift;
1.206 sakharuk 4332: $garbage=~s/^\s+$//;
4333: $garbage=~s/^\s+(\S.*)/$1/;#space before
4334: $garbage=~s/(.*\S)\s+$/$1/;#space after
4335: $garbage=~s/(\s)+/$1/;#only one space
4336: $garbage=~s/(\\begin{([^\}]+)}|\\end{([^\}]+)})//g;#remove LaTeX \begin{...} and \end{...}
4337: $garbage=~s/(\$\_\{|\$\_|\$\^{|\$\^|\}\$)//g;#remove $_{,$_,$^{,$^,}$
4338: $garbage=~s/([^\\])\$/$1/g;#$
4339: $garbage=~s/(\\ensuremath\{\_\{|\\ensuremath\{\_|\\ensuremath\{\^{|\\ensuremath\{\^|\})//g;#remove \ensuremath{...}
4340: $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 4341: $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;
4342: $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;
4343: $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 4344: $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;
4345: $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;
4346: $garbage=~s/(\\hat{([^}]+)}|\\check{([^}]+)}|\\dot{([^}]+)}|\\breve{([^}]+)}|\\acute{([^}]+)}|\\ddot{([^}]+)}|\\grave{([^}]+)}|\\tilde{([^}]+)}|\\mathring{([^}]+)}|\\bar{([^}]+)}|\\vec{([^}]+)})/$1/g;
4347: #remove some other LaTeX command
4348: $garbage=~s|\\(\w+)\\|\\|g;
4349: $garbage=~s|\\(\w+)(\s*)|$2|g;
4350: $garbage=~s|\+|11|g;
1.184 sakharuk 4351: my $value=length($garbage);
4352: return $value;
4353: }
4354:
1.353 ! foxr 4355: # Wrap image 'stuff' inside of the LaTeX required to implement
! 4356: # alignment:
! 4357: # align_tex_image(align, latex_rendering, image)
! 4358: # Where:
! 4359: # align - The HTML alignment specification.
! 4360: # latex_rendering - rendering hint for latex.
! 4361: # image - The LaTeX needed to insert the image itsef.
! 4362: # width,height - dimensions of the image.
! 4363: #
! 4364: sub align_latex_image {
! 4365: my ($align, $latex_rendering, $image, $width, $height) = @_;
! 4366: my $currentstring; # The result.
! 4367:
! 4368: # If there's an alignment specification we need to honor it here.
! 4369: # For the horizontal alignments, we will also honor the
! 4370: # value of the latex specfication. The default is parbox,
! 4371: # and that's used for illegal values too.
! 4372: #
! 4373: # Even though we set a default alignment value, the user
! 4374: # could have given us an illegal value. In that case we
! 4375: # just use the default alignment of bottom..
! 4376: if ($align eq "top") {
! 4377: $currentstring = '\raisebox{-'.$height.'mm}{'.$image.'}';
! 4378: } elsif (($align eq "center") || ($align eq "middle")) { # Being kind
! 4379: my $offset = $height/2;
! 4380: $currentstring = '\raisebox{-'.$offset.'mm}{'.$image.'}';
! 4381: } elsif ($align eq "left") {
! 4382: if ($latex_rendering eq "parpic") {
! 4383: $currentstring = '\parpic[l]{'.$image.'}';
! 4384: } elsif ($latex_rendering eq "parbox") {
! 4385: $currentstring = '\begin{minipage}[l]{'.$width.'mm}'
! 4386: .$image.'\end{minipage}';
! 4387: } elsif ($latex_rendering eq "wrapfigure"
! 4388: || $latex_rendering ne 'none') { # wrapfig render
! 4389: $currentstring =
! 4390: '\begin{wrapfigure}{l}{'.$width.'mm}'
! 4391: .'\scalebox{1.0}{'.$image.'}\end{wrapfigure}';
! 4392: }
! 4393: } elsif ($align eq "right") {
! 4394: if ($latex_rendering eq "parpic") {
! 4395: $currentstring = '\parpic[r]{'.$image.'}';
! 4396: } elsif ($latex_rendering eq "parbox") {
! 4397: $currentstring = '\begin{minipage}[r]{'.$width.'mm}'
! 4398: .$image.'\end{minipage}';
! 4399: } elsif ($latex_rendering eq "wrapfigure"
! 4400: || $latex_rendering ne 'none') { # wrapfig render
! 4401: $currentstring =
! 4402: '\begin{wrapfigure}{r}{'.$width.'mm}'
! 4403: .'\scalebox{1.0}{'.$image.'}\end{wrapfigure}';
! 4404: }
! 4405: } else { # Bottom is also default.
! 4406: # $currentstring = '\raisebox{'.$height.'mm}{'.$image.'}';
! 4407: $currentstring = $image;
! 4408: }
! 4409: return $currentstring;
! 4410: }
1.184 sakharuk 4411:
1.287 foxr 4412: # is_inside_of $tagstack $tag
4413: # This sub returns true if the current state of Xml processing
4414: # is inside of the tag.
4415: # Parameters:
4416: # tagstack - The tagstack from the parser.
4417: # tag - The tag (without the <>'s.).
4418: # Sample usage:
4419: # if (is_inside_of($tagstack "table")) {
4420: # # I'm in a table....
4421: # }
4422: sub is_inside_of {
4423: my ($tagstack, $tag) = @_;
4424: my @stack = @$tagstack;
4425: for (my $i = ($#stack - 1); $i >= 0; $i--) {
4426: if ($stack[$i] eq $tag) {
4427: return 1;
4428: }
4429: }
4430: return 0;
4431: }
1.184 sakharuk 4432:
1.94 sakharuk 4433:
1.1 sakharuk 4434: 1;
4435: __END__
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