Annotation of loncom/xml/londefdef.pm, revision 1.351
1.1 sakharuk 1: # The LearningOnline Network with CAPA
2: # Tags Default Definition Module
3: #
1.351 ! foxr 4: # $Id: londefdef.pm,v 1.350 2007/01/08 19:09:23 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') {
! 1573: my $a=&Apache::lonxml::get_param('href',$parstack,$safeeval,undef,1);
! 1574: my $b=&Apache::lonxml::get_param('name',$parstack,$safeeval,undef,1);
! 1575: if ($a=~/\S/) {
! 1576: $a=~s/([^\\])%/$1\\\%/g;
! 1577: $currentstring .= ' ({\tt URI:'.&Apache::lonxml::latex_special_symbols($a).'})';
! 1578: } elsif ($b=~/\S/) {
! 1579: $currentstring .= ' ({\tt Anchor:'.&Apache::lonxml::latex_special_symbols($b).'})';
! 1580: } else {
! 1581: $currentstring.='';
! 1582: }
! 1583: }
1.122 albertel 1584: return $currentstring;
1585: }
1586:
1.181 sakharuk 1587: #-- <li> tag (end tag optional)
1.122 albertel 1588: sub start_li {
1.168 albertel 1589: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1590: my $currentstring = '';
1.325 albertel 1591: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1592: $currentstring = $token->[4];
1593: } elsif ($target eq 'tex') {
1.237 sakharuk 1594: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1595: my $value=&Apache::lonxml::get_param('value',$parstack,$safeeval,undef,0);
1.238 albertel 1596: #FIXME need to support types i and I
1597: if ($type=~/disc/) {
1598: $currentstring .= ' \item[$\bullet$] ';
1599: } elsif ($type=~/circle/) {
1600: $currentstring .= ' \item[$\circ$] ';
1.146 sakharuk 1601: } elsif ($type=~/square/) {
1.238 albertel 1602: $currentstring .= ' \item[$\diamond$] ';
1603: } elsif ($type eq '1') {
1604: $currentstring .= ' \item['.($Apache::londefdef::list_index+1).'.]';
1.237 sakharuk 1605: } elsif ($type eq 'A') {
1.238 albertel 1606: $currentstring .= ' \item['.('A'..'Z')[$Apache::londefdef::list_index].'.]';
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 ($value ne '') {
1610: $currentstring .= ' \item['.$value.'] ';
1.122 albertel 1611: } else {
1.146 sakharuk 1612: $currentstring .= ' \item ';
1.122 albertel 1613: }
1.238 albertel 1614: $Apache::londefdef::list_index++;
1615: }
1.122 albertel 1616: return $currentstring;
1617: }
1618:
1619: sub end_li {
1620: my ($target,$token) = @_;
1.279 foxr 1621: my $currentstring = &end_p(); # In case there's a <p> in the <li>
1.325 albertel 1622: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1623: $currentstring .= $token->[2];
1.122 albertel 1624: }
1625: return $currentstring;
1626: }
1627:
1.181 sakharuk 1628: #-- <u> tag (end tag required)
1.122 albertel 1629: sub start_u {
1630: my ($target,$token) = @_;
1631: my $currentstring = '';
1.325 albertel 1632: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1633: $currentstring .= $token->[4];
1634: } elsif ($target eq 'tex') {
1635: &Apache::lonxml::startredirection();
1636: }
1637: return $currentstring;
1638: }
1639:
1640: sub end_u {
1641: my ($target,$token) = @_;
1642: my $currentstring = '';
1.325 albertel 1643: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1644: $currentstring .= $token->[2];
1645: } elsif ($target eq 'tex') {
1646: $currentstring=&Apache::lonxml::endredirection();
1647: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1648: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1649: $currentstring=~s/(\S)\s*$/$1\}/;
1650: }
1651: return $currentstring;
1652: }
1653:
1.181 sakharuk 1654: #-- <ul> tag (end tag required)
1.122 albertel 1655: sub start_ul {
1.125 sakharuk 1656: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1657: my $currentstring = &end_p(); # Close off enclosing list.
1.325 albertel 1658: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1659: $currentstring .= $token->[4];
1.122 albertel 1660: } elsif ($target eq 'tex') {
1.125 sakharuk 1661: my $TeXtype=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1.238 albertel 1662: $Apache::londefdef::list_index=0;
1.125 sakharuk 1663: if ($TeXtype eq 'disc') {
1.222 sakharuk 1664: $currentstring .= '\renewcommand{\labelitemi}{$\bullet$}'.
1665: '\renewcommand{\labelitemii}{$\bullet$}'.
1666: '\renewcommand{\labelitemiii}{$\bullet$}'.
1667: '\renewcommand{\labelitemiv}{$\bullet$}';
1.125 sakharuk 1668: } elsif ($TeXtype eq 'circle') {
1.222 sakharuk 1669: $currentstring .= '\renewcommand{\labelitemi}{$\circ$}'.
1670: '\renewcommand{\labelitemii}{$\circ$}'.
1671: '\renewcommand{\labelitemiii}{$\circ$}'.
1672: '\renewcommand{\labelitemiv}{$\circ$}';
1.125 sakharuk 1673: } elsif ($TeXtype eq 'square') {
1.222 sakharuk 1674: $currentstring .= '\renewcommand{\labelitemi}{$\diamond$}'.
1675: '\renewcommand{\labelitemii}{$\diamond$}'.
1676: '\renewcommand{\labelitemiii}{$\diamond$}'.
1677: '\renewcommand{\labelitemiv}{$\diamond$}';
1.125 sakharuk 1678: }
1.222 sakharuk 1679: $currentstring .= '\strut \begin{itemize}';
1.122 albertel 1680: }
1681: return $currentstring;
1682: }
1683:
1684: sub end_ul {
1685: my ($target,$token) = @_;
1686: my $currentstring = '';
1.325 albertel 1687: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1688: $currentstring = $token->[2];
1689: } elsif ($target eq 'tex') {
1.222 sakharuk 1690: $currentstring = '\end{itemize} \renewcommand{\labelitemi}{$\bullet$}'.
1691: '\renewcommand{\labelitemii}{$\bullet$}'.
1692: '\renewcommand{\labelitemiii}{$\bullet$}'.
1693: '\renewcommand{\labelitemiv}{$\bullet$}\strut ';
1.122 albertel 1694: }
1695: return $currentstring;
1696: }
1697:
1.181 sakharuk 1698: #-- <menu> tag (end tag required)
1.122 albertel 1699: sub start_menu {
1700: my ($target,$token) = @_;
1701: my $currentstring = '';
1.325 albertel 1702: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1703: $currentstring = $token->[4];
1704: } elsif ($target eq 'tex') {
1705: $currentstring = " \\begin{itemize} ";
1706: }
1707: return $currentstring;
1708: }
1709:
1710: sub end_menu {
1711: my ($target,$token) = @_;
1712: my $currentstring = '';
1.325 albertel 1713: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1714: $currentstring = $token->[2];
1715: } elsif ($target eq 'tex') {
1716: $currentstring = " \\end{itemize}";
1717: }
1718: return $currentstring;
1719: }
1720:
1.181 sakharuk 1721: #-- <dir> tag (end tag required)
1.122 albertel 1722: sub start_dir {
1723: my ($target,$token) = @_;
1.279 foxr 1724: my $currentstring = &end_p(); # In case there's a <p> prior to the list.
1.325 albertel 1725: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1726: $currentstring .= $token->[4];
1.122 albertel 1727: } elsif ($target eq 'tex') {
1.277 foxr 1728: $currentstring .= " \\begin{itemize} ";
1.122 albertel 1729: }
1730: return $currentstring;
1731: }
1732:
1733: sub end_dir {
1734: my ($target,$token) = @_;
1735: my $currentstring = '';
1.325 albertel 1736: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1737: $currentstring = $token->[2];
1738: } elsif ($target eq 'tex') {
1739: $currentstring = " \\end{itemize}";
1740: }
1741: return $currentstring;
1742: }
1743:
1.181 sakharuk 1744: #-- <ol> tag (end tag required)
1.122 albertel 1745: sub start_ol {
1.125 sakharuk 1746: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1747: my $currentstring = &end_p(); # In case there's a <p> prior to the list.
1.325 albertel 1748: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1749: $currentstring .= $token->[4];
1.122 albertel 1750: } elsif ($target eq 'tex') {
1.238 albertel 1751: $Apache::londefdef::list_index=0;
1.125 sakharuk 1752: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1753: if ($type eq '1') {
1.222 sakharuk 1754: $currentstring .= '\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1755: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1756: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1757: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}';
1.125 sakharuk 1758: } elsif ($type eq 'A') {
1.222 sakharuk 1759: $currentstring .= '\renewcommand{\labelenumi}{\Alph{enumi}.}'.
1760: '\renewcommand{\labelenumii}{\Alph{enumii}.}'.
1761: '\renewcommand{\labelenumiii}{\Alph{enumiii}.}'.
1762: '\renewcommand{\labelenumiv}{\Alph{enumiv}.}';
1.125 sakharuk 1763: } elsif ($type eq 'a') {
1.222 sakharuk 1764: $currentstring .= '\renewcommand{\labelenumi}{\alph{enumi}.}'.
1765: '\renewcommand{\labelenumii}{\alph{enumii}.}'.
1766: '\renewcommand{\labelenumiii}{\alph{enumiii}.}'.
1767: '\renewcommand{\labelenumiv}{\alph{enumiv}.}';
1.125 sakharuk 1768: } elsif ($type eq 'i') {
1.222 sakharuk 1769: $currentstring .= '\renewcommand{\labelenumi}{\roman{enumi}.}'.
1770: '\renewcommand{\labelenumii}{\roman{enumii}.}'.
1771: '\renewcommand{\labelenumiii}{\roman{enumiii}.}'.
1772: '\renewcommand{\labelenumiv}{\roman{enumiv}.}';
1.125 sakharuk 1773: } elsif ($type eq 'I') {
1.222 sakharuk 1774: $currentstring .= '\renewcommand{\labelenumi}{\Roman{enumi}.}'.
1775: '\renewcommand{\labelenumii}{\Roman{enumii}.}'.
1776: '\renewcommand{\labelenumiii}{\Roman{enumiii}.}'.
1777: '\renewcommand{\labelenumiv}{\Roman{enumiv}.}';
1.125 sakharuk 1778: }
1.222 sakharuk 1779: $currentstring .= '\strut \begin{enumerate}';
1.122 albertel 1780: }
1781: return $currentstring;
1782: }
1783:
1784: sub end_ol {
1785: my ($target,$token) = @_;
1786: my $currentstring = '';
1.325 albertel 1787: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1788: $currentstring = $token->[2];
1789: } elsif ($target eq 'tex') {
1.222 sakharuk 1790: $currentstring = '\end{enumerate}\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1791: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1792: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1793: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}\strut ';
1.122 albertel 1794: }
1795: return $currentstring;
1796: }
1797:
1.181 sakharuk 1798: #-- <dl> tag (end tag required)
1.122 albertel 1799: sub start_dl {
1800: my ($target,$token) = @_;
1.279 foxr 1801: my $currentstring = &end_p(); # In case there's a <p> unclosed prior to the list.
1.325 albertel 1802: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1803: $currentstring .= $token->[4];
1.122 albertel 1804: } elsif ($target eq 'tex') {
1.277 foxr 1805: $currentstring .= '\begin{description}';
1.243 albertel 1806: $Apache::londefdef::DL++;
1807: push(@Apache::londefdef::description,[]);
1808: $Apache::londefdef::DD[$Apache::londefdef::DL]=0;
1809: $Apache::londefdef::DT[$Apache::londefdef::DL]=0;
1.244 albertel 1810: $Apache::londefdef::seenDT[$Apache::londefdef::DL]=0;
1.122 albertel 1811: }
1812: return $currentstring;
1813: }
1814:
1815: sub end_dl {
1.174 sakharuk 1816: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1817: my $currentstring = '';
1.325 albertel 1818: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1819: $currentstring = $token->[2];
1820: } elsif ($target eq 'tex') {
1.243 albertel 1821: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1822: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
1823: foreach my $element (@{$Apache::londefdef::description[-1]}) {
1.174 sakharuk 1824: $currentstring.=' '.$element.' ';
1825: }
1.243 albertel 1826: pop(@Apache::londefdef::description);
1.174 sakharuk 1827: $currentstring.='\end{description}';
1.243 albertel 1828: delete($Apache::londefdef::DD[$Apache::londefdef::DL]);
1829: delete($Apache::londefdef::DT[$Apache::londefdef::DL]);
1.244 albertel 1830: delete($Apache::londefdef::seenDT[$Apache::londefdef::DL]);
1.243 albertel 1831: $Apache::londefdef::DL--;
1.122 albertel 1832: }
1833: return $currentstring;
1834: }
1835:
1.172 sakharuk 1836: #-- <dt> tag (end tag optional)
1.122 albertel 1837: sub start_dt {
1.172 sakharuk 1838: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1839: my $currentstring='';
1.325 albertel 1840: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1841: $currentstring = $token->[4];
1842: } elsif ($target eq 'tex') {
1.243 albertel 1843: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1844: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
1.174 sakharuk 1845: &Apache::lonxml::startredirection();
1.243 albertel 1846: $Apache::londefdef::DT[-1]++;
1.244 albertel 1847: $Apache::londefdef::seenDT[-1]=1;
1.122 albertel 1848: }
1849: return $currentstring;
1850: }
1851:
1852: sub end_dt {
1.172 sakharuk 1853: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1854: my $currentstring = '';
1.325 albertel 1855: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1856: $currentstring = $token->[2];
1857: } elsif ($target eq 'tex') {
1.243 albertel 1858: if ($Apache::londefdef::DT[-1]) {
1859: my $data=&item_cleanup();
1.244 albertel 1860: push(@{$Apache::londefdef::description[-1]},'\item['.$data.'] \strut \vskip 0mm');
1.243 albertel 1861: $Apache::londefdef::DT[-1]--;
1862: }
1.122 albertel 1863: }
1864: return $currentstring;
1865: }
1866:
1.173 sakharuk 1867: sub item_cleanup {
1.174 sakharuk 1868: my $item=&Apache::lonxml::endredirection();
1.173 sakharuk 1869: $item=~s/\\begin{center}//g;
1870: $item=~s/\\end{center}//g;
1871: return $item;
1872: }
1873:
1.181 sakharuk 1874: #-- <dd> tag (end tag optional)
1.122 albertel 1875: sub start_dd {
1.147 sakharuk 1876: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1877: my $currentstring = '';
1.325 albertel 1878: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1879: $currentstring = $token->[4];
1.147 sakharuk 1880: } elsif ($target eq 'tex') {
1.243 albertel 1881: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1882: if ($Apache::londefdef::DD[-1]) { &end_dd(@_);}
1.244 albertel 1883: if (!$Apache::londefdef::seenDT[-1]) {
1884: push(@{$Apache::londefdef::description[-1]},'\item[\strut] \strut \vskip 0mm ');
1885: }
1.243 albertel 1886: push(@{$Apache::londefdef::description[-1]},'');
1887: $Apache::londefdef::description[-1]->[-1].=' \strut ';
1888: $Apache::londefdef::DD[-1]++;
1.174 sakharuk 1889: &Apache::lonxml::startredirection();
1.122 albertel 1890: }
1891: return $currentstring;
1892: }
1893:
1894: sub end_dd {
1.174 sakharuk 1895: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1896: my $currentstring = '';
1.325 albertel 1897: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1898: $currentstring = $token->[2];
1.174 sakharuk 1899: } elsif ($target eq 'tex') {
1.243 albertel 1900: $Apache::londefdef::description[-1]->[-1].=
1901: &Apache::lonxml::endredirection().' \vskip 0mm ';
1902: $Apache::londefdef::DD[-1]--;
1.174 sakharuk 1903: }
1.122 albertel 1904: return $currentstring;
1905: }
1906:
1.181 sakharuk 1907: #-- <table> tag (end tag required)
1.277 foxr 1908: # <table> also ends any prior <p> that is not closed.
1909: # but, unless I allow <p>'s to nest, that's the
1910: # only way I could think of to allow <p> in
1911: # <tr> <th> bodies
1912: #
1.206 sakharuk 1913: #list of supported attributes: border,width,TeXwidth
1.91 sakharuk 1914: sub start_table {
1915: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 foxr 1916: my $textwidth = '';
1.279 foxr 1917: my $currentstring = &end_p();
1.325 albertel 1918: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1919: $currentstring .= $token->[4];
1.91 sakharuk 1920: } elsif ($target eq 'tex') {
1.344 albertel 1921: push(@Apache::londefdef::table, {});
1.91 sakharuk 1922: $Apache::londefdef::table[-1]{'row_number'} = -1;
1.222 sakharuk 1923: #maximum table's width (default coincides with text line length)
1.206 sakharuk 1924: if ($#Apache::londefdef::table==0) {
1.267 albertel 1925: $textwidth=&recalc($env{'form.textwidth'}); #result is always in mm
1.206 sakharuk 1926: $textwidth=~/(\d+\.?\d*)/;
1927: $textwidth=0.95*$1; #accounts "internal" LaTeX space for table frame
1928: } else {
1929: if ($Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}]=~/\d/) {
1930: #the maximum width of nested table is determined by LATeX width of parent cell
1931: $textwidth=$Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}];
1932: } else {
1933: #try to use all space not used before (minus 5% for LaTeX table internal) - rather silly
1.228 sakharuk 1934: $textwidth=$Apache::londefdef::table[-2]{'width'};
1.206 sakharuk 1935: for (my $i=0;$i<$Apache::londefdef::table[-2]{'counter_columns'};$i++) {
1936: $textwidth=$textwidth-$Apache::londefdef::table[-2]{'TeXlen'}[0][$i];
1937: }
1938: }
1939: }
1.294 foxr 1940:
1941: # width either comes forced from the TeXwidth or the width parameters.
1942: # in either case it can be a percentage or absolute width.
1.311 albertel 1943: # in the width case we ignore absolute width
1.126 sakharuk 1944: my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1.308 albertel 1945: if (!defined($TeXwidth)) {
1.311 albertel 1946: my $htmlwidth = &Apache::lonxml::get_param('width',$parstack,
1947: $safeeval,undef,1);
1948: if ($htmlwidth =~ /%/) {
1949: $TeXwidth = $htmlwidth;
1950: } else {
1951: $TeXwidth = $textwidth;
1952: }
1.294 foxr 1953: } else {
1954: $Apache::londefdef::table[-1]{'forcedtablewidth'} = 1;
1955: }
1956: if ($TeXwidth=~/%/) {
1.203 sakharuk 1957: $Apache::londefdef::table[-1]{'percent'}=1;
1.126 sakharuk 1958: $TeXwidth=~/(\d+)/;
1.206 sakharuk 1959: $Apache::londefdef::table[-1]{'width'}=$1*$textwidth/100;
1.126 sakharuk 1960: } else {
1.206 sakharuk 1961: $Apache::londefdef::table[-1]{'width'}=$TeXwidth;
1.316 foxr 1962: }
1963: # In the end, however the table width cannot be wider than $textwidth...
1964:
1965: if ($Apache::londefdef::table[-1]{'width'} > $textwidth) {
1966: $Apache::londefdef::table[-1]{'width'} = $textwidth;
1967: }
1.294 foxr 1968:
1.126 sakharuk 1969: #table's border
1.206 sakharuk 1970: my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval);
1.208 sakharuk 1971: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
1.91 sakharuk 1972: unless (defined $border) { $border = 0; }
1973: if ($border) {
1974: $Apache::londefdef::table[-1]{'hinc'} = '\hline ';
1975: $Apache::londefdef::table[-1]{'vinc'} = '&';
1976: $Apache::londefdef::table[-1]{'vvinc'} = '|';
1977: } else {
1978: $Apache::londefdef::table[-1]{'hinc'} = '';
1979: $Apache::londefdef::table[-1]{'vinc'} = '&';
1980: $Apache::londefdef::table[-1]{'vvinc'} = '';
1981: }
1.206 sakharuk 1982: if ($#Apache::londefdef::table==0) {
1.281 foxr 1983: # Note that \newline seems to destroy the alignment envs.
1984: # $Apache::londefdef::table[-1]{'output'}='\strut\newline\strut\setlength{\tabcolsep}{1 mm}';
1985: $Apache::londefdef::table[-1]{'output'}='\strut'.'\\\\'."\n".'\strut\setlength{\tabcolsep}{1 mm}';
1.206 sakharuk 1986: }
1987: $Apache::londefdef::table[-1]{'output'}.=' \noindent \begin{tabular} ';
1988: $Apache::londefdef::table[-1]{'TeXlen'}=[];
1989: $Apache::londefdef::table[-1]{'objectlen'}=[];
1.229 sakharuk 1990: $Apache::londefdef::table[-1]{'objectsignal'}=[];
1.206 sakharuk 1991: $Apache::londefdef::table[-1]{'maxlen'}=[];
1992: $Apache::londefdef::table[-1]{'minlen'}=[];
1993: $Apache::londefdef::table[-1]{'content'}=[];
1994: $Apache::londefdef::table[-1]{'align'}=[];
1.340 foxr 1995: if (&is_inside_of($tagstack, 'sup')) {
1996: $currentstring .= '}} \\\\ \ensuremath{^{ ';
1997: }
1998: if (&is_inside_of($tagstack, 'sub')) {
1999: $currentstring .= '}} \\\\ \ensuremath{_{ ';
2000: }
2001: $currentstring.=' \keephidden{NEW TABLE ENTRY}';
1.295 foxr 2002:
1.294 foxr 2003:
2004: }
1.91 sakharuk 2005: return $currentstring;
2006: }
1.122 albertel 2007:
2008: sub end_table {
2009: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2010: my $currentstring = '';
1.325 albertel 2011: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2012: $currentstring = $token->[2];
2013: } elsif ($target eq 'tex') {
2014: my $inmemory = '';
2015: my $output = '';
1.206 sakharuk 2016: my $WARNING='';
2017: #width of columns from TeXwidth attributes
1.294 foxr 2018:
1.206 sakharuk 2019: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2020: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2021: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]<$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn]) {
2022: $Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]=$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn];
2023: }
2024: }
2025: }
2026: #free space and number of empty columns
2027: my ($available_space,$empty_columns)=($Apache::londefdef::table[-1]{'width'},0);
1.228 sakharuk 2028: if ($#Apache::londefdef::table ne 0) {$available_space=0.9*$available_space;}
1.206 sakharuk 2029: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2030: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]==0) {
2031: $empty_columns++;
2032: } else {
2033: $available_space=$available_space-$Apache::londefdef::table[-1]{'TeXlen'}[0][$jn];
2034: }
2035: }
2036: #boundaries for contents columns
2037: my @min_len=();#columns can not be narrower
2038: my @max_len=();#maximum length of column
2039: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2040: my ($localmin,$localmax)=(0,0);
2041: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2042: if ($localmin<$Apache::londefdef::table[-1]{'minlen'}[$in][$jn]) {
2043: $localmin=$Apache::londefdef::table[-1]{'minlen'}[$in][$jn];
2044: }
2045: if ($localmax<$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn]) {
2046: $localmax=$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn];
2047: }
2048: }
2049: push @min_len, $localmin;
2050: push @max_len, $localmax;
1.122 albertel 2051: }
1.206 sakharuk 2052: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2053: my $localmin=0,;
2054: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2055: if ($localmin<$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn]) {
2056: $localmin=$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn];
2057: }
2058: }
1.229 sakharuk 2059: if ($max_len[$jn]<$localmin) {
2060: $max_len[$jn]=$localmin;
2061: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
2062: }#object size is bigger
2063: if ($min_len[$jn]<$localmin) {
2064: $min_len[$jn]=$localmin;
2065: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
2066: }#object size is bigger
1.206 sakharuk 2067: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]!=0) {
2068: $min_len[$jn]=0;
2069: $max_len[$jn]=0;
2070: }
2071: }
2072: #final adjustment of column width
2073: my @fwidth=@{$Apache::londefdef::table[-1]{'TeXlen'}[0]};#final width array
2074: my @adjust=();
2075: #step 1. adjustment by maximum value
2076: my $space_neeeded=0;
2077: for (my $jn=0;$jn<=$#max_len;$jn++) {
2078: $space_neeeded=$space_neeeded+$max_len[$jn];
2079: }
2080: if ($space_neeeded<=$available_space) {
2081: for (my $jn=0;$jn<=$#max_len;$jn++) {
2082: if ($fwidth[$jn]==0) {
2083: $fwidth[$jn]=$max_len[$jn];
1.53 sakharuk 2084: }
1.51 sakharuk 2085: }
1.206 sakharuk 2086: } else {
2087: #step 2. adjustment by minimum value (estimation)
2088: $space_neeeded=0;
2089: for (my $jn=0;$jn<=$#min_len;$jn++) {
2090: $space_neeeded+=$min_len[$jn];
2091: }
2092: if ($space_neeeded>$available_space) {
2093: $WARNING=' \textbf{NOT ENOUGH SPACE FOR TABLE} ';
2094: for (my $jn=0;$jn<=$#max_len;$jn++) {
2095: if ($fwidth[$jn]==0) {
2096: $fwidth[$jn]=$min_len[$jn];
2097: }
2098: }
1.229 sakharuk 2099: #check if we have objects which can be scaled
2100: my $how_many_to_scale=0;
2101: my @to_scale=();
2102: for (my $jn=0;$jn<=$#max_len;$jn++) {
2103: if ($Apache::londefdef::table[-1]{'objectsignal'}[$jn] eq '1') {
2104: $how_many_to_scale++;
2105: push @to_scale, $jn;
2106: }
2107: }
2108: if ($how_many_to_scale>0) {
2109: my $space_to_adjust=($space_neeeded-$available_space)/$how_many_to_scale;
2110: foreach my $jn (@to_scale) {
2111: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2112: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/;
2113: if ($1 ne '') {
2114: my $current_length=&recalc($1);
2115: $current_length=~/(\d+\.?\d*)/;
2116: $current_length=$current_length-$space_to_adjust;
2117: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/width=$current_length mm/;
2118: }
2119: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/\[(\d+\.?\d*)\s*mm\]/;
2120: if ($1 ne '') {
2121: my $current_length=$1;
2122: $current_length=$current_length-$space_to_adjust;
2123: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/\[(\d+\.?\d*)\s*mm\]/\[$current_length mm\]/;
2124: }
2125: }
2126: $fwidth[$jn]=$fwidth[$jn]-$space_to_adjust;
2127: }
2128: }
1.206 sakharuk 2129: } else {
2130: #step 3. adjustment over minimal + corrections
2131: my $enlarge_coef=$available_space/$space_neeeded;
2132: my $acsessive=0;
2133: for (my $jn=0;$jn<=$#min_len;$jn++) {
2134: $adjust[$jn]=$min_len[$jn]*$enlarge_coef;
2135: if ($adjust[$jn]>$max_len[$jn]) {
2136: $fwidth[$jn]=$max_len[$jn];
2137: $acsessive=$acsessive+$adjust[$jn]-$max_len[$jn];
2138: $adjust[$jn]=0;
2139: }
2140: }
2141: if ($acsessive>0) {
2142: #we have an excess of space and can redistribute it
2143: my $notempty_columns=0;
2144: for (my $jn=0;$jn<=$#min_len;$jn++) {
2145: if ($adjust[$jn]!=0) {
2146: $notempty_columns++;
2147: }
2148: }
2149: my $per_column=$acsessive/$notempty_columns;
2150: for (my $jn=0;$jn<=$#min_len;$jn++) {
2151: if ($adjust[$jn]!=0) {
2152: $adjust[$jn]+=$per_column;
2153: $fwidth[$jn]=$adjust[$jn];
2154: }
1.223 sakharuk 2155: }
2156: } else {
2157: for (my $jn=0;$jn<=$#min_len;$jn++) {
2158: $fwidth[$jn]=$adjust[$jn];
1.206 sakharuk 2159: }
2160: }
1.203 sakharuk 2161: }
2162: }
1.222 sakharuk 2163: #use all available width if it is defined in % or as TeXwidth
2164: if (($Apache::londefdef::table[-1]{'percent'}==1) || ($Apache::londefdef::table[-1]{'forcetablewidth'}==1)) {
1.203 sakharuk 2165: my $current=0;
1.206 sakharuk 2166: for (my $i=0;$i<=$#fwidth;$i++) {
2167: $current+=$fwidth[$i];
1.203 sakharuk 2168: }
2169: my $coef=$Apache::londefdef::table[-1]{'width'}/$current;
1.206 sakharuk 2170: for (my $i=0;$i<=$#fwidth;$i++) {
2171: $fwidth[$i]*=$coef;
2172: }
2173: }
2174: #removing of empty columns if allowed
1.208 sakharuk 2175: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
1.206 sakharuk 2176: if ($permission eq 'yes') {
2177: my @cleaned_table=();
2178: my @cleaned_header=();
2179: my $colind=0;
2180: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2181: if ($fwidth[$jn]!=0) {
2182: #we need to copy column
2183: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2184: $cleaned_table[$in][$colind]=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
2185: $cleaned_header[$colind]=$fwidth[$jn];
2186: }
2187: $colind++;
2188: }
1.122 albertel 2189: }
1.206 sakharuk 2190: $Apache::londefdef::table[-1]{'content'}=\@cleaned_table;
2191: @fwidth=@cleaned_header;
1.122 albertel 2192: }
1.206 sakharuk 2193: #construct header of the table
2194: my $header_of_table = '{'.$Apache::londefdef::table[-1]{'vvinc'};
2195: for (my $in=0;$in<=$#fwidth;$in++) {
2196: $header_of_table.='p{'.$fwidth[$in].' mm}'.$Apache::londefdef::table[-1]{'vvinc'};
2197: }
2198: $header_of_table .= '}';
1.126 sakharuk 2199: #fill the table
2200: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1.306 foxr 2201: my $have_rowspan = 0;
1.206 sakharuk 2202: for (my $jn=0;$jn<=$#fwidth;$jn++) {
1.320 foxr 2203:
2204: #-----------------------------------------------------------
2205: # I think this order of doing things will ensure that
2206: # single rowspan, columspan and combined row/colspans will
2207: # work correctly. LaTeX is delicate here.
2208: # RF.
2209:
2210: # Start a rowspan if necessary:
2211:
2212: my $rowspan = $Apache::londefdef::table[-1]{'rowspan'}[$in][$jn];
2213: my $colspan = $Apache::londefdef::table[-1]{'colspan'}[$in][$jn];
1.304 foxr 2214: #
2215: # Do the appropriate magic if this has a colspan
2216: #
1.320 foxr 2217:
1.304 foxr 2218: if ($colspan > 1) {
1.336 foxr 2219: my $spanwidth = 0;
2220: for (my $spancol = $jn; $spancol < $jn + $colspan; $spancol++) {
2221: $spanwidth += $fwidth[$spancol];
2222: }
1.304 foxr 2223: $output .= '\multicolumn{'.
2224: $colspan
1.337 foxr 2225: ."}";
2226: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
2227: $output .= '{|c|}{';
2228: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
2229: $output .= '{|r|}{';
2230: }
2231: else {
2232: $output .= "{|p{$spanwidth mm}|}{";
2233: }
2234:
1.304 foxr 2235: }
1.306 foxr 2236:
1.337 foxr 2237: # Rowspan... if colspan is 1, and there's an alignment we'll need
2238: # to kick in a multicolumn in order to get the alignment spec.
2239: # this must precede the multirow or LaTex gets quite upset.
2240: # Naturally if colspan > 1 we've already done that above ^
2241: #
2242: my $multirow_aligned = 0;
1.306 foxr 2243: if ($rowspan > 1) {
1.337 foxr 2244: if ($colspan == 1) {
2245: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
2246: $output .= '\multicolumn{1}{|c|}{';
2247: $multirow_aligned = 1;
2248: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
2249: $output .= '\multicolumn{1}{|r|}{';
2250: $multirow_aligned = 1;
2251: }
2252: }
1.306 foxr 2253: $have_rowspan++;
1.337 foxr 2254: $output .= '\multirow{'.$rowspan.'}[0]{*}{';
1.350 albertel 2255:
2256: $Apache::londefdef::table[-1]{'content'}[$in][$jn] =~
2257: s{^\s*\\par\s*}{};
2258: $Apache::londefdef::table[-1]{'content'}[$in][$jn] =~
2259: s{\s*\\vskip\s*0pt\s*$}{};
2260:
1.337 foxr 2261: #
2262: # If we did not throw in a multicolumn to align, then add
2263: # an extra {
2264: # so we close correctly without having to keep additional state
2265: # around
2266: #
2267: if (!$multirow_aligned) {
2268: $output .= '{';
2269: }
1.306 foxr 2270: }
2271: if (($rowspan eq '^') || ($rowspan eq '_')) {
2272: $have_rowspan++;
2273: }
1.320 foxr 2274: #--------------------------------------------------------------
1.306 foxr 2275:
1.337 foxr 2276:
2277: # For right and center alignment of single cells.
2278: # we are going to use a multicolumn with a span of 1 to specify alignment.
2279: #
2280: if ($colspan == 1 && $rowspan == 1) {
2281: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
2282: $output .= '\multicolumn{1}{|c|}{';
2283: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
2284: $output .= '\multicolumn{1}{|r|}{';
2285: }
1.206 sakharuk 2286: }
1.337 foxr 2287:
1.206 sakharuk 2288: $output.=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
1.337 foxr 2289:
2290: if (($colspan == 1 && $rowspan == 1) &&
2291: (($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') ||
2292: ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r'))) {
2293: $output .= '}';
1.206 sakharuk 2294: }
1.337 foxr 2295:
1.306 foxr 2296: # Close off any open multirow:
2297:
2298: if ($rowspan > 1) {
1.337 foxr 2299: $output .= '}}';
1.306 foxr 2300: }
1.304 foxr 2301: # Close off the colspan...
2302: #
2303: if ($colspan > 1) {
2304: $output .= '}';
2305: $jn += $colspan-1; # Adjust for number of rows really left.
2306: }
1.206 sakharuk 2307: if ($jn!=$#fwidth) {$output.=' '.$Apache::londefdef::table[-1]{'vinc'};}
2308: }
1.306 foxr 2309: # If have_rowspan > 0, and borders are on, then
2310: # we need to do more than put an \hline at the bottom of row.
2311: # we need to do the appropriate \cline to ensure that
2312: # the spanned rows don't have \hlines through them.
2313:
2314: if (($Apache::londefdef::table[-1]{'hinc'} =~ /\\hline/) && $have_rowspan) {
2315: $output .= ' \\\\ ';
2316: for (my $jn=0; $jn<=$#fwidth;$jn++) {
2317: my $rowspan = $Apache::londefdef::table[-1]{'rowspan'}[$in][$jn];
1.320 foxr 2318: if ($rowspan ne "^") {
2319: if (($rowspan <= 1) || ($rowspan eq '_')) {
2320: my $column = $jn+1;
2321: $output .= '\cline{'.$column.'-'.$column.'} ';
2322: }
1.306 foxr 2323: }
2324: }
2325:
2326: } else {
2327: $output.=' \\\\ '.$Apache::londefdef::table[-1]{'hinc'}.' ';
2328: }
1.122 albertel 2329: }
1.281 foxr 2330: # Note that \newline destroys alignment env's produced by e.g. <div>
2331: # $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut\newline\strut ';
2332: $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut'.'\\\\'."\n".'\strut ';
1.127 sakharuk 2333: if ($#Apache::londefdef::table > 0) {
2334: my $inmemory = $Apache::londefdef::table[-1]{'output'};
1.294 foxr 2335: # Figure out max/and min width by summing us and then
2336: # apply that to the current column of the table we nest in
2337: # if it's larger than the current width or the current width
2338: # is undefined.
2339: #
2340: my $min_nested_width = 0;
2341: my $max_nested_width = 0;
2342: for (my $col = 0; $col <= $Apache::londefdef::table[-1]{'counter_columns'}; $col++) {
2343: $min_nested_width += $min_len[$col];
2344: $max_nested_width += $max_len[$col];
1.300 foxr 2345:
1.294 foxr 2346: }
2347: # Fudge in an extra 5 mm for borders etc:
2348:
2349: $min_nested_width += 5;
2350: $max_nested_width += 5;
2351:
2352: my $outer_column = $Apache::londefdef::table[-2]{'counter_columns'};
2353: my $outer_row = $Apache::londefdef::table[-2]{'row_number'};
2354: if ($min_nested_width > $Apache::londefdef::table[-2]{'minlen'}[$outer_row][$outer_column]) {
2355: $Apache::londefdef::table[-2]{'minlen'}[$outer_row][$outer_column] = $min_nested_width;
2356: }
2357: if ($max_nested_width > $Apache::londefdef::table[-2]{'maxlen'}[$outer_row][$outer_column]) {
2358: $Apache::londefdef::table[-2]{'maxlen'}[$outer_row][$outer_column] = $max_nested_width;
2359: }
2360:
1.127 sakharuk 2361: pop @Apache::londefdef::table;
1.129 sakharuk 2362: push @{$Apache::londefdef::table[-1]{'include'}}, $inmemory;
1.127 sakharuk 2363: } else {
2364: $currentstring .= $Apache::londefdef::table[-1]{'output'};
2365: pop @Apache::londefdef::table;
1.143 sakharuk 2366: undef @Apache::londefdef::table;
1.127 sakharuk 2367: }
1.122 albertel 2368: }
2369: return $currentstring;
2370: }
2371:
1.166 sakharuk 2372: #-- <tr> tag (end tag optional)
1.122 albertel 2373: sub start_tr {
2374: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2375: my $currentstring = '';
1.325 albertel 2376: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2377: $currentstring = $token->[4];
2378: } elsif ($target eq 'tex') {
2379: $Apache::londefdef::table[-1]{'row_number'}++;
1.206 sakharuk 2380: my $alignchar=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.122 albertel 2381: if ($alignchar ne '') {
1.206 sakharuk 2382: push @ {$Apache::londefdef::table[-1]{'rows'} },substr($alignchar,0,1);
1.122 albertel 2383: } else {
2384: push @ {$Apache::londefdef::table[-1]{'rows'} }, 'l';
2385: }
2386: push ( @{ $Apache::londefdef::table[-1]{'rowdata'} }, $Apache::londefdef::table[-1]{'hinc'});
1.300 foxr 2387: #
2388: # Need to save the number of table columns to preserve the max # columns.
2389: #
2390: $Apache::londefdef::table[-1]{'prior_columns'} = $Apache::londefdef::table[-1]{'counter_columns'};
1.122 albertel 2391: $Apache::londefdef::table[-1]{'counter_columns'} = -1;
1.206 sakharuk 2392: push @ {$Apache::londefdef::table[-1]{'TeXlen'}}, [];
2393: push @ {$Apache::londefdef::table[-1]{'objectlen'}}, [];
2394: push @ {$Apache::londefdef::table[-1]{'minlen'}}, [];
2395: push @ {$Apache::londefdef::table[-1]{'maxlen'}}, [];
2396: push @ {$Apache::londefdef::table[-1]{'content'}}, [];
1.122 albertel 2397: }
2398: return $currentstring;
2399: }
2400:
2401: sub end_tr {
1.160 sakharuk 2402: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 2403: my $currentstring = &end_p(); # Close any pending <p> in the row.
1.325 albertel 2404: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 2405: $currentstring .= $token->[2];
1.122 albertel 2406: } elsif ($target eq 'tex') {
1.160 sakharuk 2407: if ($Apache::londefdef::TD_redirection) {
2408: &end_td_tex($parstack,$parser,$safeeval);
2409: }
1.300 foxr 2410: # Counter columns must be the maximum number of columns seen
2411: # in the table so far so:
2412: if ($Apache::londefdef::table[-1]{'prior_columns'} > $Apache::londefdef::table[-1]{'counter_columns'}) {
2413: $Apache::londefdef::table[-1]{'counter_columns'} = $Apache::londefdef::table[-1]{'prior_columns'};
2414: }
1.295 foxr 2415:
2416:
1.294 foxr 2417:
1.122 albertel 2418: }
2419: return $currentstring;
2420: }
2421:
1.166 sakharuk 2422: #-- <td> tag (end tag optional)
1.122 albertel 2423: sub start_td {
2424: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2425: my $currentstring = '';
1.325 albertel 2426: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2427: $currentstring = $token->[4];
2428: } elsif ($target eq 'tex') {
1.160 sakharuk 2429: $Apache::londefdef::TD_redirection = 1;
1.159 sakharuk 2430: &tag_check('tr','td',$tagstack,$parstack,$parser,$safeeval);
1.122 albertel 2431: }
2432: return $currentstring;
2433: }
1.159 sakharuk 2434:
2435: sub tag_check {
2436: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
1.160 sakharuk 2437: my @ar=@$parstack;
2438: for (my $i=$#ar-1;$i>=0;$i--) {
2439: if (lc($$tagstack[$i]) eq $good_tag) {
2440: &start_td_tex($parstack,$parser,$safeeval);
2441: last;
2442: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2443: splice @ar, $i+1;
2444: &end_td_tex(\@ar,$parser,$safeeval);
2445: &start_td_tex($parstack,$parser,$safeeval);
2446: last;
1.159 sakharuk 2447: }
1.160 sakharuk 2448: }
1.159 sakharuk 2449: return '';
2450: }
2451:
2452: sub start_td_tex {
2453: my ($parstack,$parser,$safeeval) = @_;
1.206 sakharuk 2454: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2455: if ($alignchar eq '') {
2456: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
1.159 sakharuk 2457: }
1.206 sakharuk 2458: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
1.159 sakharuk 2459: $Apache::londefdef::table[-1]{'counter_columns'}++;
1.206 sakharuk 2460: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2461: if (defined $TeXwidth) {
2462: my $current_length=&recalc($TeXwidth);
2463: $current_length=~/(\d+\.?\d*)/;
2464: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2465: }
1.159 sakharuk 2466: &Apache::lonxml::startredirection();
2467: return '';
2468: }
2469:
2470: sub end_td_tex {
2471: my ($parstack,$parser,$safeeval) = @_;
1.304 foxr 2472: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2473: my $current_column = $Apache::londefdef::table[-1]{'counter_columns'};
1.303 foxr 2474: my $data = &Apache::lonxml::endredirection();
2475:
1.305 foxr 2476: # The rowspan array of the table indicates which cells are part of a span.
2477: # n indicates the start of a span set of n rows.
2478: # ^ indicates a cell that continues a span set.
1.306 foxr 2479: # _ indicates the cell is at the bottom of a span set.
1.305 foxr 2480: # If this and subsequent cells are part of a rowspan, we must
2481: # push along the row until we find one that is not.
2482:
2483: while ((defined $Apache::londefdef::table[-1]{'rowspan'}[$current_row] [$current_column])
1.306 foxr 2484: && ($Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column] =~ /[\^\_]/)) {
1.305 foxr 2485: # Part of a span.
2486: push @ {$Apache::londefdef::table[-1]{'content'}[-1]}, '';
2487: $current_column++;
2488: }
2489: $Apache::londefdef::table[-1]{'counter_columns'} = $current_column;
2490:
2491:
1.320 foxr 2492: # Get the column and row spans.
2493: # Colspan can be done via \multicolumn if I can figure out the data structs.
2494:
2495: my $colspan = &Apache::lonxml::get_param('colspan', $parstack, $safeeval, undef, 0);
2496: if (!$colspan) {
2497: $colspan = 1;
2498: }
1.305 foxr 2499:
2500: my $rowspan = &Apache::lonxml::get_param('rowspan', $parstack, $safeeval, undef, 0);
2501: if (!$rowspan) {
2502: $rowspan = 1;
2503: }
2504:
1.303 foxr 2505:
1.305 foxr 2506:
1.320 foxr 2507: for (my $c = 0; $c < $colspan; $c++) {
2508: $Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column+$c] = $rowspan;
2509: for (my $i = 1; $i < $rowspan; $i++) {
2510: $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column+$c] = '^';
2511: if ($i == ($rowspan-1)) {
2512: $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column+$c] = '_';
2513: }
1.306 foxr 2514: }
1.305 foxr 2515: }
1.304 foxr 2516:
1.159 sakharuk 2517: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2518: if (defined $TeXwidth) {
1.206 sakharuk 2519: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2520: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2521: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
1.159 sakharuk 2522: } else {
1.206 sakharuk 2523: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2524: my $garbage_data=$data;
2525: my $fwidth=0;
2526: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2527: my $current_length=&recalc($1);
2528: $current_length=~/(\d+\.?\d*)/;
2529: if ($fwidth<$1) {$fwidth=$1;}
2530: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2531: }
2532: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2533: my $current_length=$1;
2534: if ($fwidth<$current_length) {$fwidth=$current_length;}
2535: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2536: }
2537: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2538: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2539: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2540: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
1.231 sakharuk 2541: } elsif ($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)*/) {
2542: my $garbage_data=$data;
2543: my $fwidth=0;
2544: while ($garbage_data=~/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)\s*\}/) {
2545: my $current_length=&recalc($1);
2546: $current_length=~/(\d+\.?\d*)/;
2547: if ($fwidth<$1) {$fwidth=$1;}
2548: $garbage_data=~s/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2549: }
2550: while ($garbage_data=~/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2551: my $current_length=&recalc($1);
2552: $current_length=~/(\d+\.?\d*)/;
2553: if ($fwidth<$1) {$fwidth=$1;}
2554: $garbage_data=~s/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2555: }
2556: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2557: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2558: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2559: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2560: $data=~s/\\\\\s*$//;
1.159 sakharuk 2561: } else {
1.166 sakharuk 2562: $data=~s/^\s+(\S.*)/$1/;
1.159 sakharuk 2563: $data=~s/(.*\S)\s+$/$1/;
1.166 sakharuk 2564: $data=~s/(\s)+/$1/;
1.206 sakharuk 2565: my ($current_length,$min_length)=(0,0);
1.166 sakharuk 2566: if ($data=~/\\vskip/) {
2567: my $newdata=$data;
2568: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2569: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2570: foreach my $elementdata (@newdata) {
1.206 sakharuk 2571: my $lengthnewdata=2.5*&LATEX_length($elementdata);
1.166 sakharuk 2572: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
1.206 sakharuk 2573: my @words=split(/ /,$elementdata);
2574: foreach my $word (@words) {
2575: my $lengthword=2.5*&LATEX_length($word);
2576: if ($min_length<$lengthword) {$min_length=$lengthword;}
2577: }
1.166 sakharuk 2578: }
2579: } else {
1.206 sakharuk 2580: $current_length=2.5*&LATEX_length($data);
2581: my @words=split(/ /,$data);
2582: foreach my $word (@words) {
1.228 sakharuk 2583: my $lengthword=2*&LATEX_length($word);
1.206 sakharuk 2584: if ($min_length<$lengthword) {$min_length=$lengthword;}
2585: }
1.166 sakharuk 2586: }
1.206 sakharuk 2587: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2588: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2589: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2590: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
1.159 sakharuk 2591: }
2592: }
1.302 foxr 2593: # Substitute all of the tables nested in this cell in their appropriate places.
2594:
2595:
2596: my $nested_count = $#{$Apache::londefdef::table[-1]{'include'}}; # This one is constant...
2597: for (my $in=0; $in<=$nested_count; $in++) {
1.301 foxr 2598: my $nested = shift @{$Apache::londefdef::table[-1]{'include'}};
2599: $nested =~ s/\\end\{tabular\}\\strut\\\\/\\end\{tabular\}/;
2600: # $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2601: $data =~ s/\\keephidden\{NEW TABLE ENTRY\}/$nested/;
2602:
2603: }
2604: # Should be be killing off the 'include' elements as they're used up?
1.305 foxr 2605:
1.206 sakharuk 2606: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
1.305 foxr 2607:
1.304 foxr 2608:
2609:
2610:
2611: # the colspan array will indicate how many columns will be spanned by this
2612: # cell..this requires that counter_columns also be adjusted accordingly
2613: # so that the next bunch of text goes in the right cell. Note that since
2614: # counter_columns is incremented in the start_td_tex, we adjust by colspan-1.
2615: #
2616:
2617: $Apache::londefdef::table[-1]{'counter_columns'} += $colspan -1;
2618: for (my $i = 0; $i < ($colspan -1); $i++) {
2619: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },'';
2620: }
1.320 foxr 2621: for (my $r = 0; $r < $rowspan; $r++) {
2622: $Apache::londefdef::table[-1]{'colspan'}[$current_row+$r][$current_column] = $colspan;
2623: # Put empty text in spanned cols.
2624:
2625: }
2626:
1.304 foxr 2627:
2628:
1.301 foxr 2629: return '';
1.159 sakharuk 2630: }
2631:
1.122 albertel 2632: sub end_td {
1.126 sakharuk 2633: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 2634: my $currentstring = '';
1.325 albertel 2635: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2636: $currentstring = $token->[2];
2637: } elsif ($target eq 'tex') {
1.160 sakharuk 2638: $Apache::londefdef::TD_redirection =0;
1.159 sakharuk 2639: &end_td_tex($parstack,$parser,$safeeval);
1.122 albertel 2640: }
2641: return $currentstring;
2642: }
2643:
1.166 sakharuk 2644: #-- <th> tag (end tag optional)
1.122 albertel 2645: sub start_th {
2646: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2647: my $currentstring = '';
1.325 albertel 2648: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2649: $currentstring = $token->[4];
2650: } elsif ($target eq 'tex') {
1.230 sakharuk 2651: $Apache::londefdef::TD_redirection = 1;
2652: &tagg_check('tr','th',$tagstack,$parstack,$parser,$safeeval);
1.122 albertel 2653: }
2654: return $currentstring;
1.130 sakharuk 2655: }
1.230 sakharuk 2656:
2657: sub tagg_check {
2658: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
2659: my @ar=@$parstack;
2660: for (my $i=$#ar-1;$i>=0;$i--) {
2661: if (lc($$tagstack[$i]) eq $good_tag) {
2662: &start_th_tex($parstack,$parser,$safeeval);
2663: last;
2664: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2665: splice @ar, $i+1;
2666: &end_th_tex(\@ar,$parser,$safeeval);
2667: &start_th_tex($parstack,$parser,$safeeval);
2668: last;
2669: }
2670: }
2671: return '';
2672: }
2673:
2674: sub start_th_tex {
2675: my ($parstack,$parser,$safeeval) = @_;
2676: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2677: if ($alignchar eq '') {
2678: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
2679: }
2680: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
2681: $Apache::londefdef::table[-1]{'counter_columns'}++;
2682: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2683: if (defined $TeXwidth) {
2684: my $current_length=&recalc($TeXwidth);
2685: $current_length=~/(\d+\.?\d*)/;
2686: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2687: }
2688: &Apache::lonxml::startredirection();
2689: return '';
2690: }
2691:
2692: sub end_th_tex {
2693: my ($parstack,$parser,$safeeval) = @_;
2694: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2695: my $data=&Apache::lonxml::endredirection();
2696: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2697: if (defined $TeXwidth) {
2698: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2699: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2700: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2701: } else {
2702: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2703: my $garbage_data=$data;
2704: my $fwidth=0;
2705: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2706: my $current_length=&recalc($1);
2707: $current_length=~/(\d+\.?\d*)/;
2708: if ($fwidth<$1) {$fwidth=$1;}
2709: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2710: }
2711: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2712: my $current_length=$1;
2713: if ($fwidth<$current_length) {$fwidth=$current_length;}
2714: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2715: }
2716: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2717: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2718: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2719: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2720: } else {
2721: $data=~s/^\s+(\S.*)/$1/;
2722: $data=~s/(.*\S)\s+$/$1/;
2723: $data=~s/(\s)+/$1/;
2724: my ($current_length,$min_length)=(0,0);
2725: if ($data=~/\\vskip/) {
2726: my $newdata=$data;
2727: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2728: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2729: foreach my $elementdata (@newdata) {
2730: my $lengthnewdata=2.5*&LATEX_length($elementdata);
2731: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
2732: my @words=split(/ /,$elementdata);
2733: foreach my $word (@words) {
2734: my $lengthword=2.5*&LATEX_length($word);
2735: if ($min_length<$lengthword) {$min_length=$lengthword;}
2736: }
2737: }
2738: } else {
2739: $current_length=2.5*&LATEX_length($data);
2740: my @words=split(/ /,$data);
2741: foreach my $word (@words) {
2742: my $lengthword=2*&LATEX_length($word);
2743: if ($min_length<$lengthword) {$min_length=$lengthword;}
2744: }
2745: }
2746: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2747: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2748: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2749: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
2750: }
2751: }
2752: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
2753: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2754: }
2755: #make data bold
2756: $data='\textbf{'.$data.'}';
2757: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
2758: return'';
2759: }
2760:
1.122 albertel 2761: sub end_th {
1.130 sakharuk 2762: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 2763: my $currentstring = &end_p(); # Close any open <p> in the row.
1.325 albertel 2764: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 2765: $currentstring .= $token->[2];
1.122 albertel 2766: } elsif ($target eq 'tex') {
1.230 sakharuk 2767: $Apache::londefdef::TD_redirection =0;
2768: &end_th_tex($parstack,$parser,$safeeval);
1.122 albertel 2769: }
2770: return $currentstring;
2771: }
1.230 sakharuk 2772:
1.181 sakharuk 2773: #-- <img> tag (end tag forbidden)
1.249 foxr 2774: #
2775: # Render the <IMG> tag.
2776: # <IMG> has the following attributes (in addition to the
2777: # standard HTML ones:
2778: # TeXwrap - Governs how the tex target will try to wrap text around
2779: # horizontally aligned images.
2780: # TeXwidth - The width of the image when rendered for print (mm).
2781: # TeXheight - The height of the image when rendered for print (mm)
2782: # (Note there seems to also be support for this as a % of page size)
2783: #
1.122 albertel 2784: sub start_img {
1.299 albertel 2785: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 2786: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,
2787: undef,1);
1.325 albertel 2788: if (! $src &&
2789: ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex')
2790: ) {
1.299 albertel 2791: my $inside = &Apache::lonxml::get_all_text("/img",$parser,$style);
1.189 albertel 2792: return '';
2793: }
1.290 albertel 2794: &Apache::lonxml::extlink($src);
1.122 albertel 2795: my $currentstring = '';
2796: my $scaling = .3;
1.249 foxr 2797:
2798: # Render unto browsers that which are the browser's...
2799:
1.325 albertel 2800: if ($target eq 'web' || $target eq 'webgrade') {
1.267 albertel 2801: if ($env{'browser.imagesuppress'} ne 'on') {
1.322 albertel 2802: my $enc = ('yes' eq
2803: lc(&Apache::lonxml::get_param('encrypturl',$parstack,
2804: $safeeval)));
2805: $currentstring.=&Apache::lonenc::encrypt_ref($token,{'src'=>$src},
2806: $enc);
1.122 albertel 2807: } else {
1.322 albertel 2808: my $alttag = &Apache::lonxml::get_param('alt',$parstack,$safeeval,
2809: undef,1);
2810: if (!$alttag) {
2811: $alttag = &Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2812: $src);
1.51 sakharuk 2813: }
1.158 sakharuk 2814: $currentstring.='[IMAGE: '.$alttag.']';
1.1 sakharuk 2815: }
1.249 foxr 2816:
2817: # and render unto TeX that which is LaTeX
2818:
1.122 albertel 2819: } elsif ($target eq 'tex') {
1.248 foxr 2820: #
2821: # The alignment will require some superstructure to be put around
2822: # the \includegraphics stuff. At present we can only partially
2823: # simulate the alignments offered by html.
2824: #
2825: #
2826: my $align = lc(&Apache::lonxml::get_param('align',
2827: $parstack,
2828: $safeeval,
2829: undef,1));
2830: if(!$align) {
1.287 foxr 2831: $align = "bottom"; # This is html's default so it's ours too.
1.248 foxr 2832: }
2833: #
2834: &Apache::lonxml::debug("Alignemnt = $align");
2835: # LaTeX's image/text wrapping is really bad since it wants to
2836: # make figures float.
2837: # The user has the optional parameter (applicable only to l/r
2838: # alignment to use the picins/parpic directive to get wrapped text
2839: # this is also imperfect.. that's why we give them a choice...
2840: # so they can't yell at us for our choice.
2841: #
2842: my $latex_rendering = &Apache::lonxml::get_param('TeXwrap',
2843: $parstack,
2844: $safeeval,
2845: undef,0);
1.312 foxr 2846: # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering");
1.248 foxr 2847: if(!$latex_rendering) {
1.312 foxr 2848: $latex_rendering = "texwrap";
2849: }
2850: # using texwrap inside a table does not work. So, if after all of this,
2851: # texwrap is on, we turn it off if we detect we're in a table:
2852: #
2853: if (($latex_rendering eq 'texwrap') && &is_inside_of($tagstack, "table")) {
2854: $latex_rendering = 'parpic';
1.248 foxr 2855: }
1.323 foxr 2856:
1.312 foxr 2857: # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering image file: $src");
1.248 foxr 2858:
1.256 albertel 2859: #if original gif/jpg/png file exist do following:
1.266 albertel 2860: my $origsrc=$src;
1.256 albertel 2861: my ($path,$file) = &get_eps_image($src);
1.341 foxr 2862: # &Apache::lonnet::logthis("Image source: $src result: $path $file");
1.122 albertel 2863: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.261 foxr 2864: &Apache::lonxml::debug("path = $path file = $file src = $src");
1.192 sakharuk 2865: if (-e $src) {
1.261 foxr 2866: &Apache::lonxml::debug("$src exists");
1.256 albertel 2867: my ($height_param,$width_param)=
1.266 albertel 2868: &image_size($origsrc,0.3,$parstack,$safeeval);
2869: my $size;
2870: if ($width_param) { $size.='width='.$width_param.' mm,'; }
2871: if ($height_param) { $size.='height='.$height_param.' mm]'; }
1.341 foxr 2872: # Default size if not able to extract that (e.g. eps image).
2873:
2874: # &Apache::lonnet::logthis("Size = $size");
2875:
1.266 albertel 2876: $size='['.$size;
2877: $size=~s/,$/]/;
1.344 albertel 2878: $currentstring .= '\graphicspath{{'.$path.'}}'
2879: .'\includegraphics'.$size.'{'.$file.'} ';
1.256 albertel 2880:
1.248 foxr 2881: # If there's an alignment specification we need to honor it here.
2882: # For the horizontal alignments, we will also honor the
2883: # value of the latex specfication. The default is parbox,
2884: # and that's used for illegal values too.
2885: #
2886: # Even though we set a default alignment value, the user
2887: # could have given us an illegal value. In that case we
2888: # just use the default alignment of bottom..
2889: if ($align eq "top") {
2890: $currentstring = '\raisebox{-'.$height_param.'mm}{'.$currentstring.'}';
2891: } elsif (($align eq "center") || ($align eq "middle")) { # Being kind
2892: my $offset = $height_param/2;
2893: $currentstring = '\raisebox{-'.$offset.'mm}{'.$currentstring.'}';
2894: } elsif ($align eq "left") {
2895: if ($latex_rendering eq "parpic") {
2896: $currentstring = '\parpic[l]{'.$currentstring.'}';
1.346 foxr 2897: } elsif ($latex_rendering eq "parbox") {
2898: $currentstring = '\begin{minipage}[l]{'.$width_param.'mm}'
2899: .$currentstring.'\end{minipage}';
1.348 albertel 2900: } elsif ($latex_rendering eq "wrapfigure"
1.349 www 2901: || $latex_rendering ne 'none') { # wrapfig render
1.348 albertel 2902: $currentstring =
2903: '\begin{wrapfigure}{l}{'.$width_param.'mm}'
1.286 foxr 2904: .'\scalebox{1.0}{'.$currentstring.'}\end{wrapfigure}';
1.248 foxr 2905: }
2906: } elsif ($align eq "right") {
2907: if ($latex_rendering eq "parpic") {
2908: $currentstring = '\parpic[r]{'.$currentstring.'}';
1.346 foxr 2909: } elsif ($latex_rendering eq "parbox") {
2910: $currentstring = '\begin{minipage}[r]{'.$width_param.'mm}'
2911: .$currentstring.'\end{minipage}';
1.348 albertel 2912: } elsif ($latex_rendering eq "wrapfigure"
1.349 www 2913: || $latex_rendering ne 'none') { # wrapfig render
1.348 albertel 2914: $currentstring =
2915: '\begin{wrapfigure}{r}{'.$width_param.'mm}'
1.286 foxr 2916: .'\scalebox{1.0}{'.$currentstring.'}\end{wrapfigure}';
1.248 foxr 2917: }
2918: } else { # Bottom is also default.
2919: # $currentstring = '\raisebox{'.$height_param.'mm}{'.$currentstring.'}';
2920: }
1.122 albertel 2921: } else {
1.261 foxr 2922: &Apache::lonxml::debug("$src does not exist");
1.122 albertel 2923: #original image file doesn't exist so check the alt attribute
2924: my $alt =
2925: &Apache::lonxml::get_param('alt',$parstack,$safeeval,undef,1);
2926: unless ($alt) {
2927: $alt=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
2928: }
2929:
1.256 albertel 2930: if ($alt) { $currentstring .= ' '.$alt.' '; }
1.59 sakharuk 2931: }
1.249 foxr 2932:
2933: # And here's where the semi-quote breaks down: allow the user
2934: # to edit the beast as well by rendering the problem for edit:
1.186 albertel 2935: } elsif ($target eq 'edit') {
2936: $currentstring .=&Apache::edit::tag_start($target,$token);
2937: $currentstring .=&Apache::edit::text_arg('Image Url:','src',$token,70).
2938: &Apache::edit::browse('src',undef,'alt').' '.
2939: &Apache::edit::search('src',undef,'alt').'<br />';
2940: $currentstring .=&Apache::edit::text_arg('Description:','alt',$token,70).'<br />';
2941: $currentstring .=&Apache::edit::text_arg('width (pixel):','width',$token,5);
2942: $currentstring .=&Apache::edit::text_arg('height (pixel):','height',$token,5).'<br />';
2943: $currentstring .=&Apache::edit::text_arg('TeXwidth (mm):','TeXwidth',$token,5);
2944: $currentstring .=&Apache::edit::text_arg('TeXheight (mm):','TeXheight',$token,5);
1.234 albertel 2945: $currentstring .=&Apache::edit::select_arg('Alignment:','align',
2946: ['','bottom','middle','top','left','right'],$token,5);
1.249 foxr 2947: $currentstring .=&Apache::edit::select_arg('TeXwrap:', 'TeXwrap',
1.348 albertel 2948: ['', 'none','parbox', 'parpic', 'wrapfigure'], $token, 2);
1.332 www 2949: $currentstring .=&Apache::edit::select_arg('Encrypt URL:','encrypturl',
1.322 albertel 2950: ['no','yes'], $token, 2);
1.186 albertel 2951: $currentstring .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1.249 foxr 2952: my $src= &Apache::lonxml::get_param('src',$parstack,$safeeval);
2953: my $alt= &Apache::lonxml::get_param('alt',$parstack,$safeeval);
2954: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
2955: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
2956:
2957:
1.186 albertel 2958: $currentstring .= '<img src="'.$src.'" alt="'.$alt.'" ';
2959: if ($width) { $currentstring.=' width="'.$width.'" '; }
2960: if ($height) { $currentstring.=' height="'.$height.'" '; }
2961: $currentstring .= ' />';
2962: } elsif ($target eq 'modified') {
1.210 albertel 2963: my ($osrc,$owidth,$oheight)=
2964: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2965: my $ctag=&Apache::edit::get_new_args($token,$parstack,
1.234 albertel 2966: $safeeval,'src','alt','align',
1.249 foxr 2967: 'TeXwidth','TeXheight', 'TeXwrap',
1.322 albertel 2968: 'width','height','encrypturl');
1.210 albertel 2969: my ($nsrc,$nwidth,$nheight)=
2970: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2971: my $loc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$nsrc);
2972: &image_replication($loc);
2973: my ($iwidth,$iheight);
2974: if (-e $loc) {
2975: my $image = Image::Magick->new;
2976: $image->Read($loc);
2977: ($iwidth, $iheight) = ($image->Get('width'),
2978: $image->Get('height'));
2979: }
2980: if ($osrc ne $nsrc || (!$nwidth && !$nheight)) {
2981: # changed image or no size specified,
2982: # if they didn't explicitly change the
2983: # width or height use the ones from the image
2984: if ($iwidth && $iheight) {
2985: if ($owidth == $nwidth || (!$nwidth && !$nheight)) {
2986: $token->[2]{'width'} = $iwidth;$ctag=1;
2987: }
2988: if ($oheight == $nheight || (!$nwidth && !$nheight)) {
2989: $token->[2]{'height'}=$iheight;$ctag=1;
1.186 albertel 2990: }
2991: }
2992: }
1.210 albertel 2993: my ($cwidth,$cheight)=($token->[2]{'width'},$token->[2]{'height'});
2994: # if we don't have a width or height
2995: if ($iwidth && $cwidth && !$cheight) {
2996: $token->[2]{'height'}=int(($cwidth/$iwidth)*$iheight);$ctag=1;
2997: }
2998: if ($iheight && $cheight && !$cwidth) {
2999: $token->[2]{'width'}=int(($cheight/$iheight)*$iwidth);$ctag=1;
3000: }
3001: if ($ctag) {$currentstring=&Apache::edit::rebuild_tag($token);}
1.122 albertel 3002: }
1.261 foxr 3003:
1.122 albertel 3004: return $currentstring;
3005: }
3006:
3007: sub end_img {
3008: my ($target,$token) = @_;
3009: my $currentstring = '';
1.325 albertel 3010: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3011: $currentstring = $token->[2];
3012: } elsif ($target eq 'tex') {
3013: $currentstring = '';
3014: }
3015: return $currentstring;
3016: }
3017:
1.181 sakharuk 3018: #-- <applet> tag (end tag required)
1.122 albertel 3019: sub start_applet {
3020: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3021:
3022: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,undef,1);
1.290 albertel 3023: &Apache::lonxml::extlink($code);
1.122 albertel 3024: my $archive=&Apache::lonxml::get_param('archive',$parstack,$safeeval,
3025: undef,1);
1.290 albertel 3026: &Apache::lonxml::extlink($archive);
1.122 albertel 3027: my $currentstring = '';
1.325 albertel 3028: if ($target eq 'web' || $target eq 'webgrade') {
1.267 albertel 3029: if ($env{'browser.appletsuppress'} ne 'on') {
1.250 albertel 3030: $currentstring = &Apache::lonenc::encrypt_ref($token,
3031: {'code'=>$code,
3032: 'archive'=>$archive}
3033: );
1.122 albertel 3034: } else {
3035: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
3036: $safeeval,undef,1);
3037: unless ($alttag) {
3038: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
3039: $code);
1.44 sakharuk 3040: }
1.122 albertel 3041: $currentstring='[APPLET: '.$alttag.']';
1.1 sakharuk 3042: }
1.122 albertel 3043: } elsif ($target eq 'tex') {
1.177 albertel 3044: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
3045: $safeeval,undef,1);
3046: unless ($alttag) {
3047: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,
3048: undef,1);
3049: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
3050: $code);
1.175 sakharuk 3051: }
1.177 albertel 3052: $currentstring.='\begin{center} \fbox{Java Applet: '.$alttag.
3053: '.}\end{center}';
1.122 albertel 3054: }
3055: return $currentstring;
3056: }
3057:
3058: sub end_applet {
3059: my ($target,$token) = @_;
3060: my $currentstring = '';
1.325 albertel 3061: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3062: $currentstring = $token->[2];
3063: } elsif ($target eq 'tex') {
3064: }
3065: return $currentstring;
3066: }
3067:
1.181 sakharuk 3068: #-- <embed> tag (end tag optional/required)
1.122 albertel 3069: sub start_embed {
3070: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3071: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
1.290 albertel 3072: &Apache::lonxml::extlink($src);
1.122 albertel 3073: my $currentstring = '';
1.325 albertel 3074: if ($target eq 'web' || $target eq 'webgrade') {
1.267 albertel 3075: if ($env{'browser.embedsuppress'} ne 'on') {
1.250 albertel 3076: $currentstring=&Apache::lonenc::encrypt_ref($token,{'src'=>$src});
1.122 albertel 3077: } else {
3078: my $alttag=&Apache::lonxml::get_param
3079: ('alt',$parstack,$safeeval,undef,1);
3080: unless ($alttag) {
3081: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
1.42 albertel 3082: }
1.122 albertel 3083: $currentstring='[EMBED: '.$alttag.']';
1.10 www 3084: }
1.122 albertel 3085: } elsif ($target eq 'tex') {
3086: }
3087: return $currentstring;
3088: }
3089:
3090: sub end_embed {
3091: my ($target,$token) = @_;
3092: my $currentstring = '';
1.325 albertel 3093: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3094: $currentstring = $token->[2];
1.175 sakharuk 3095: } elsif ($target eq 'tex') {
1.122 albertel 3096: }
3097: return $currentstring;
3098: }
3099:
1.181 sakharuk 3100: #-- <param> tag (end tag forbidden)
1.122 albertel 3101: sub start_param {
3102: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.290 albertel 3103: if (&Apache::lonxml::get_param('name',$parstack,
3104: $safeeval,undef,1)=~/^cabbase$/i) {
3105: my $value=&Apache::lonxml::get_param('value',$parstack,
3106: $safeeval,undef,1);
3107: &Apache::lonxml::extlink($value);
3108: }
3109:
3110: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
3111: &Apache::lonxml::extlink($src);
1.122 albertel 3112: my $currentstring = '';
1.325 albertel 3113: if ($target eq 'web' || $target eq 'webgrade') {
1.250 albertel 3114: my %toconvert;
3115: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
3116: if ($src) { $toconvert{'src'}= $src; }
3117: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval,
3118: undef,1);
1.251 albertel 3119: if ($name=~/^cabbase$/i) {
3120: $toconvert{'value'}=&Apache::lonxml::get_param('value',$parstack,
3121: $safeeval,undef,1);
3122: }
1.250 albertel 3123: $currentstring = &Apache::lonenc::encrypt_ref($token,\%toconvert);
1.122 albertel 3124: } elsif ($target eq 'tex') {
3125: }
3126: return $currentstring;
3127: }
3128:
3129: sub end_param {
3130: my ($target,$token) = @_;
3131: my $currentstring = '';
1.325 albertel 3132: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3133: $currentstring = $token->[2];
3134: } elsif ($target eq 'tex') {
3135: }
3136: return $currentstring;
3137: }
3138:
3139: #-- <allow> tag
3140: sub start_allow {
3141: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3142: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
1.290 albertel 3143: &Apache::lonxml::extlink($src);
3144:
1.241 albertel 3145: if ($target eq 'tex') { &image_replication($src); }
1.122 albertel 3146: my $result;
3147: if ($target eq 'edit') {
3148: $result .=&Apache::edit::tag_start($target,$token);
3149: $result .=&Apache::edit::text_arg('File Spec:','src',$token,70);
3150: $result .=&Apache::edit::end_row();#.&Apache::edit::start_spanning_row();
3151: } elsif ($target eq 'modified') {
3152: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
3153: $safeeval,'src');
3154: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
3155: }
3156: return $result;
3157: }
3158:
3159: sub end_allow {
3160: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3161: if ( $target eq 'edit') { return (&Apache::edit::end_table()); }
3162: return '';
3163: }
1.119 www 3164:
1.181 sakharuk 3165: #-- Frames (end tag required)
3166: #-- <frameset>
1.122 albertel 3167: sub start_frameset {
3168: my ($target,$token) = @_;
1.277 foxr 3169: my $currentstring = ''; # Close any pending para.
1.325 albertel 3170: if ($target eq 'web' || $target eq 'webgrade') {
1.328 albertel 3171: $currentstring =
3172: &Apache::loncommon::start_page($Apache::londefdef::title,
3173: $Apache::londefdef::head,
3174: {'add_entries' => $token->[2],
3175: 'no_title' => 1,
3176: 'force_register' => 1,
3177: 'frameset' => 1,});
3178:
1.122 albertel 3179: }
3180: return $currentstring;
3181: }
3182:
3183: sub end_frameset {
3184: my ($target,$token) = @_;
3185: my $currentstring = '';
1.325 albertel 3186: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3187: $currentstring = $token->[2];
3188: }
3189: return $currentstring;
3190: }
1.162 sakharuk 3191:
1.181 sakharuk 3192: #-- <xmp> (end tag required)
1.162 sakharuk 3193: sub start_xmp {
3194: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3195: my $currentstring = '';
1.325 albertel 3196: if ($target eq 'web' || $target eq 'webgrade') {
1.162 sakharuk 3197: $currentstring .= $token->[4];
3198: } elsif ($target eq 'tex') {
3199: $currentstring .= '\begin{verbatim}';
3200: }
3201: return $currentstring;
3202: }
3203:
3204: sub end_xmp {
3205: my ($target,$token) = @_;
3206: my $currentstring = '';
1.325 albertel 3207: if ($target eq 'web' || $target eq 'webgrade') {
1.162 sakharuk 3208: $currentstring .= $token->[2];
3209: } elsif ($target eq 'tex') {
3210: $currentstring .= '\end{verbatim}';
3211: }
3212: return $currentstring;
3213: }
3214:
1.181 sakharuk 3215: #-- <pre> (end tag required)
1.122 albertel 3216: sub start_pre {
1.126 sakharuk 3217: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 3218: my $currentstring = &end_p(); # close off pending <p>
1.325 albertel 3219: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3220: $currentstring .= $token->[4];
3221: } elsif ($target eq 'tex') {
1.136 sakharuk 3222: $currentstring .= '\begin{verbatim}';
1.319 albertel 3223: &Apache::lonxml::disable_LaTeX_substitutions();
1.122 albertel 3224: }
3225: return $currentstring;
3226: }
3227:
3228: sub end_pre {
3229: my ($target,$token) = @_;
3230: my $currentstring = '';
1.325 albertel 3231: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3232: $currentstring .= $token->[2];
3233: } elsif ($target eq 'tex') {
1.136 sakharuk 3234: $currentstring .= '\end{verbatim}';
1.319 albertel 3235: &Apache::lonxml::enable_LaTeX_substitutions();
1.122 albertel 3236: }
3237: return $currentstring;
3238: }
3239:
3240: #-- <insert>
3241: sub start_insert {
3242: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3243: my $currentstring = '';
1.325 albertel 3244: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3245: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
3246: $currentstring .= '<b>'.$display.'</b>';;
3247: }
3248: return $currentstring;
3249: }
3250:
3251: sub end_insert {
3252: my ($target,$token) = @_;
3253: my $currentstring = '';
1.325 albertel 3254: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3255: $currentstring .= '';
3256: }
3257: return $currentstring;
3258: }
3259:
3260: #-- <externallink>
3261: sub start_externallink {
3262: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3263: my $currentstring = '';
1.325 albertel 3264: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3265: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
3266: $currentstring .= '<b>'.$display.'</b>';;
3267: }
3268: return $currentstring;
3269: }
3270:
3271: sub end_externallink {
3272: my ($target,$token) = @_;
3273: my $currentstring = '';
1.325 albertel 3274: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3275: $currentstring .= '';
3276: }
3277: return $currentstring;
3278: }
3279:
3280: #-- <blankspace heigth="">
3281: sub start_blankspace {
3282: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 3283: my $currentstring = &end_p(); # closes off any unclosed <p>
1.122 albertel 3284: if ($target eq 'tex') {
3285: my $howmuch = &Apache::lonxml::get_param('heigth',$parstack,$safeeval,undef,1);
3286: $currentstring .= '\vskip '.$howmuch.' ';
3287: }
3288: return $currentstring;
3289: }
3290:
3291: sub end_blankspace {
3292: my ($target,$token) = @_;
3293: my $currentstring = '';
3294: if ($target eq 'tex') {
3295: $currentstring .= '';
3296: }
3297: return $currentstring;
3298: }
3299:
1.181 sakharuk 3300: #-- <abbr> tag (end tag required)
1.122 albertel 3301: sub start_abbr {
3302: my ($target,$token) = @_;
3303: my $currentstring = '';
1.325 albertel 3304: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3305: $currentstring = $token->[4];
3306: }
3307: return $currentstring;
3308: }
3309:
3310: sub end_abbr {
3311: my ($target,$token) = @_;
3312: my $currentstring = '';
1.325 albertel 3313: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3314: $currentstring = $token->[2];
3315: }
3316: return $currentstring;
3317: }
3318:
1.181 sakharuk 3319: #-- <acronym> tag (end tag required)
1.122 albertel 3320: sub start_acronym {
3321: my ($target,$token) = @_;
3322: my $currentstring = '';
1.325 albertel 3323: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3324: $currentstring = $token->[4];
3325: }
3326: return $currentstring;
3327: }
3328:
3329: sub end_acronym {
3330: my ($target,$token) = @_;
3331: my $currentstring = '';
1.325 albertel 3332: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3333: $currentstring = $token->[2];
3334: }
3335: return $currentstring;
3336: }
3337:
1.181 sakharuk 3338: #-- <area> tag (end tag forbidden)
1.122 albertel 3339: sub start_area {
3340: my ($target,$token) = @_;
3341: my $currentstring = '';
1.325 albertel 3342: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3343: $currentstring = $token->[4];
3344: }
3345: return $currentstring;
3346: }
3347:
3348: sub end_area {
3349: my ($target,$token) = @_;
3350: my $currentstring = '';
1.325 albertel 3351: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3352: $currentstring = $token->[2];
3353: }
3354: return $currentstring;
3355: }
3356:
1.181 sakharuk 3357: #-- <base> tag (end tag forbidden)
1.122 albertel 3358: sub start_base {
3359: my ($target,$token) = @_;
3360: my $currentstring = '';
1.325 albertel 3361: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3362: $currentstring = $token->[4];
1.161 sakharuk 3363: }
1.122 albertel 3364: return $currentstring;
3365: }
3366:
3367: sub end_base {
3368: my ($target,$token) = @_;
3369: my $currentstring = '';
1.325 albertel 3370: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3371: $currentstring = $token->[2];
3372: }
3373: return $currentstring;
3374: }
3375:
1.181 sakharuk 3376: #-- <bdo> tag (end tag required)
1.122 albertel 3377: sub start_bdo {
3378: my ($target,$token) = @_;
3379: my $currentstring = '';
1.325 albertel 3380: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3381: $currentstring = $token->[4];
3382: }
3383: return $currentstring;
3384: }
3385:
3386: sub end_bdo {
3387: my ($target,$token) = @_;
3388: my $currentstring = '';
1.325 albertel 3389: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3390: $currentstring = $token->[2];
3391: }
3392: return $currentstring;
3393: }
3394:
1.181 sakharuk 3395: #-- <bgsound> tag (end tag optional)
1.122 albertel 3396: sub start_bgsound {
3397: my ($target,$token) = @_;
3398: my $currentstring = '';
1.325 albertel 3399: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3400: $currentstring = $token->[4];
3401: }
3402: return $currentstring;
3403: }
3404:
3405: sub end_bgsound {
3406: my ($target,$token) = @_;
3407: my $currentstring = '';
1.325 albertel 3408: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3409: $currentstring = $token->[2];
3410: }
3411: return $currentstring;
3412: }
3413:
1.181 sakharuk 3414: #-- <blink> tag (end tag required)
1.122 albertel 3415: sub start_blink {
3416: my ($target,$token) = @_;
3417: my $currentstring = '';
1.325 albertel 3418: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3419: $currentstring = $token->[4];
3420: }
3421: return $currentstring;
3422: }
3423:
3424: sub end_blink {
3425: my ($target,$token) = @_;
3426: my $currentstring = '';
1.325 albertel 3427: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3428: $currentstring = $token->[2];
3429: }
3430: return $currentstring;
3431: }
3432:
1.181 sakharuk 3433: #-- <blockquote> tag (end tag required)
1.122 albertel 3434: sub start_blockquote {
3435: my ($target,$token) = @_;
1.279 foxr 3436: my $currentstring = &end_p(); # Close any unclosed <p>
1.325 albertel 3437: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 3438: $currentstring .= $token->[4];
1.122 albertel 3439: }
1.339 foxr 3440: if ($target eq 'tex') {
3441: $currentstring .= '\begin{quote}';
3442: }
1.122 albertel 3443: return $currentstring;
3444: }
3445:
3446: sub end_blockquote {
3447: my ($target,$token) = @_;
3448: my $currentstring = '';
1.325 albertel 3449: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3450: $currentstring = $token->[2];
3451: }
1.339 foxr 3452: if ($target eq 'tex') {
3453: $currentstring = '\end{quote}';
3454: }
1.122 albertel 3455: return $currentstring;
3456: }
3457:
1.181 sakharuk 3458: #-- <button> tag (end tag required)
1.122 albertel 3459: sub start_button {
3460: my ($target,$token) = @_;
3461: my $currentstring = '';
1.325 albertel 3462: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3463: $currentstring = $token->[4];
3464: }
3465: return $currentstring;
3466: }
3467:
3468: sub end_button {
3469: my ($target,$token) = @_;
3470: my $currentstring = '';
1.325 albertel 3471: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3472: $currentstring = $token->[2];
3473: }
3474: return $currentstring;
3475: }
3476:
1.181 sakharuk 3477: #-- <caption> tag (end tag required)
1.122 albertel 3478: sub start_caption {
3479: my ($target,$token) = @_;
3480: my $currentstring = '';
1.325 albertel 3481: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3482: $currentstring = $token->[4];
3483: }
3484: return $currentstring;
3485: }
3486:
3487: sub end_caption {
3488: my ($target,$token) = @_;
3489: my $currentstring = '';
1.325 albertel 3490: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3491: $currentstring = $token->[2];
3492: }
3493: return $currentstring;
3494: }
3495:
1.181 sakharuk 3496: #-- <col> tag (end tag forbdden)
1.122 albertel 3497: sub start_col {
3498: my ($target,$token) = @_;
3499: my $currentstring = '';
1.325 albertel 3500: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3501: $currentstring = $token->[4];
3502: }
3503: return $currentstring;
3504: }
3505:
3506: sub end_col {
3507: my ($target,$token) = @_;
3508: my $currentstring = '';
1.325 albertel 3509: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3510: $currentstring = $token->[2];
3511: }
3512: return $currentstring;
3513: }
3514:
1.181 sakharuk 3515: #-- <colgroup> tag (end tag optional)
1.122 albertel 3516: sub start_colgroup {
3517: my ($target,$token) = @_;
3518: my $currentstring = '';
1.325 albertel 3519: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3520: $currentstring = $token->[4];
3521: }
3522: return $currentstring;
3523: }
3524:
3525: sub end_colgroup {
3526: my ($target,$token) = @_;
3527: my $currentstring = '';
1.325 albertel 3528: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3529: $currentstring = $token->[2];
3530: }
3531: return $currentstring;
3532: }
3533:
1.181 sakharuk 3534: #-- <del> tag (end tag required)
1.122 albertel 3535: sub start_del {
3536: my ($target,$token) = @_;
3537: my $currentstring = '';
1.325 albertel 3538: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3539: $currentstring = $token->[4];
3540: }
3541: return $currentstring;
3542: }
3543:
3544: sub end_del {
3545: my ($target,$token) = @_;
3546: my $currentstring = '';
1.325 albertel 3547: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3548: $currentstring = $token->[2];
3549: }
3550: return $currentstring;
3551: }
3552:
1.181 sakharuk 3553: #-- <fieldset> tag (end tag required)
1.122 albertel 3554: sub start_fieldset {
3555: my ($target,$token) = @_;
3556: my $currentstring = '';
1.325 albertel 3557: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3558: $currentstring = $token->[4];
3559: }
3560: return $currentstring;
3561: }
3562:
3563: sub end_fieldset {
3564: my ($target,$token) = @_;
3565: my $currentstring = '';
1.325 albertel 3566: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3567: $currentstring = $token->[2];
3568: }
3569: return $currentstring;
3570: }
3571:
1.181 sakharuk 3572: #-- <frame> tag (end tag forbidden)
1.122 albertel 3573: sub start_frame {
3574: my ($target,$token) = @_;
3575: my $currentstring = '';
1.325 albertel 3576: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3577: $currentstring = $token->[4];
3578: }
3579: return $currentstring;
3580: }
3581:
3582: sub end_frame {
3583: my ($target,$token) = @_;
3584: my $currentstring = '';
1.325 albertel 3585: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3586: $currentstring = $token->[2];
3587: }
3588: return $currentstring;
3589: }
3590:
1.181 sakharuk 3591: #-- <iframe> tag (end tag required)
1.122 albertel 3592: sub start_iframe {
3593: my ($target,$token) = @_;
3594: my $currentstring = '';
1.325 albertel 3595: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3596: $currentstring = $token->[4];
3597: }
3598: return $currentstring;
3599: }
3600:
3601: sub end_iframe {
3602: my ($target,$token) = @_;
3603: my $currentstring = '';
1.325 albertel 3604: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3605: $currentstring = $token->[2];
3606: }
3607: return $currentstring;
3608: }
3609:
1.181 sakharuk 3610: #-- <ins> tag (end tag required)
1.122 albertel 3611: sub start_ins {
3612: my ($target,$token) = @_;
3613: my $currentstring = '';
1.325 albertel 3614: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3615: $currentstring = $token->[4];
3616: }
3617: return $currentstring;
3618: }
3619:
3620: sub end_ins {
3621: my ($target,$token) = @_;
3622: my $currentstring = '';
1.325 albertel 3623: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3624: $currentstring = $token->[2];
3625: }
3626: return $currentstring;
3627: }
3628:
1.181 sakharuk 3629: #-- <isindex> tag (end tag forbidden)
1.122 albertel 3630: sub start_isindex {
3631: my ($target,$token) = @_;
3632: my $currentstring = '';
1.325 albertel 3633: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3634: $currentstring = $token->[4];
3635: }
3636: return $currentstring;
3637: }
3638:
3639: sub end_isindex {
3640: my ($target,$token) = @_;
3641: my $currentstring = '';
1.325 albertel 3642: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3643: $currentstring = $token->[2];
3644: }
3645: return $currentstring;
3646: }
3647:
1.181 sakharuk 3648: #-- <keygen> tag (end tag forbidden)
1.122 albertel 3649: sub start_keygen {
3650: my ($target,$token) = @_;
3651: my $currentstring = '';
1.325 albertel 3652: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3653: $currentstring = $token->[4];
3654: }
3655: return $currentstring;
3656: }
3657:
3658: sub end_keygen {
3659: my ($target,$token) = @_;
3660: my $currentstring = '';
1.325 albertel 3661: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3662: $currentstring = $token->[2];
3663: }
3664: return $currentstring;
3665: }
3666:
3667: #-- <label> tag
3668: sub start_label {
3669: my ($target,$token) = @_;
3670: my $currentstring = '';
1.325 albertel 3671: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3672: $currentstring = $token->[4];
3673: }
3674: return $currentstring;
3675: }
3676:
3677: sub end_label {
3678: my ($target,$token) = @_;
3679: my $currentstring = '';
1.325 albertel 3680: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3681: $currentstring = $token->[2];
3682: }
3683: return $currentstring;
3684: }
3685:
1.181 sakharuk 3686: #-- <layer> tag (end tag required)
1.122 albertel 3687: sub start_layer {
3688: my ($target,$token) = @_;
3689: my $currentstring = '';
1.325 albertel 3690: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3691: $currentstring = $token->[4];
3692: }
3693: return $currentstring;
3694: }
3695:
3696: sub end_layer {
3697: my ($target,$token) = @_;
3698: my $currentstring = '';
1.325 albertel 3699: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3700: $currentstring = $token->[2];
3701: }
3702: return $currentstring;
3703: }
3704:
1.181 sakharuk 3705: #-- <legend> tag (end tag required)
1.122 albertel 3706: sub start_legend {
3707: my ($target,$token) = @_;
3708: my $currentstring = '';
1.325 albertel 3709: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3710: $currentstring = $token->[4];
3711: }
3712: return $currentstring;
3713: }
3714:
3715: sub end_legend {
3716: my ($target,$token) = @_;
3717: my $currentstring = '';
1.325 albertel 3718: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3719: $currentstring = $token->[2];
3720: }
3721: return $currentstring;
3722: }
3723:
1.181 sakharuk 3724: #-- <link> tag (end tag forbidden)
1.122 albertel 3725: sub start_link {
1.292 albertel 3726: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 3727: my $currentstring = '';
1.324 albertel 3728: if ($target eq 'web' || $target eq 'webgrade') {
1.291 albertel 3729: my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
3730: undef,1);
3731: &Apache::lonxml::extlink($href);
1.122 albertel 3732: $currentstring = $token->[4];
3733: }
3734: return $currentstring;
3735: }
3736:
3737: sub end_link {
3738: my ($target,$token) = @_;
3739: my $currentstring = '';
1.325 albertel 3740: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3741: $currentstring = $token->[2];
3742: }
3743: return $currentstring;
3744: }
3745:
1.181 sakharuk 3746: #-- <marquee> tag (end tag optional)
1.122 albertel 3747: sub start_marquee {
3748: my ($target,$token) = @_;
3749: my $currentstring = '';
1.325 albertel 3750: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3751: $currentstring = $token->[4];
3752: }
3753: return $currentstring;
3754: }
3755:
3756: sub end_marquee {
3757: my ($target,$token) = @_;
3758: my $currentstring = '';
1.325 albertel 3759: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3760: $currentstring = $token->[2];
3761: }
3762: return $currentstring;
3763: }
3764:
1.179 sakharuk 3765: #-- <multicol> tag (end tag required)
3766: sub start_multicol {
1.122 albertel 3767: my ($target,$token) = @_;
1.279 foxr 3768: my $currentstring = &end_p(); # Close any pending <p>
1.325 albertel 3769: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 3770: $currentstring .= $token->[4];
1.122 albertel 3771: }
3772: return $currentstring;
3773: }
3774:
1.179 sakharuk 3775: sub end_multicol {
1.122 albertel 3776: my ($target,$token) = @_;
3777: my $currentstring = '';
1.325 albertel 3778: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3779: $currentstring = $token->[2];
3780: }
3781: return $currentstring;
3782: }
3783:
1.179 sakharuk 3784: #-- <nobr> tag (end tag required)
1.122 albertel 3785: sub start_nobr {
3786: my ($target,$token) = @_;
3787: my $currentstring = '';
1.325 albertel 3788: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3789: $currentstring = $token->[4];
1.179 sakharuk 3790: } elsif ($target eq 'tex') {
3791: $currentstring='\mbox{';
3792: }
1.122 albertel 3793: return $currentstring;
3794: }
3795:
3796: sub end_nobr {
3797: my ($target,$token) = @_;
3798: my $currentstring = '';
1.325 albertel 3799: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3800: $currentstring = $token->[2];
1.179 sakharuk 3801: } elsif ($target eq 'tex') {
3802: $currentstring='}';
3803: }
1.122 albertel 3804: return $currentstring;
3805: }
3806:
1.179 sakharuk 3807: #-- <noembed> tag (end tag required)
1.122 albertel 3808: sub start_noembed {
3809: my ($target,$token) = @_;
3810: my $currentstring = '';
1.325 albertel 3811: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3812: $currentstring = $token->[4];
3813: }
3814: return $currentstring;
3815: }
3816:
3817: sub end_noembed {
3818: my ($target,$token) = @_;
3819: my $currentstring = '';
1.325 albertel 3820: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3821: $currentstring = $token->[2];
3822: }
3823: return $currentstring;
3824: }
3825:
1.179 sakharuk 3826: #-- <noframes> tag (end tag required)
1.122 albertel 3827: sub start_noframes {
3828: my ($target,$token) = @_;
3829: my $currentstring = '';
1.325 albertel 3830: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3831: $currentstring = $token->[4];
3832: }
3833: return $currentstring;
3834: }
3835:
3836: sub end_noframes {
3837: my ($target,$token) = @_;
3838: my $currentstring = '';
1.325 albertel 3839: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3840: $currentstring = $token->[2];
3841: }
3842: return $currentstring;
3843: }
3844:
1.179 sakharuk 3845: #-- <nolayer> tag (end tag required)
1.122 albertel 3846: sub start_nolayer {
3847: my ($target,$token) = @_;
3848: my $currentstring = '';
1.325 albertel 3849: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3850: $currentstring = $token->[4];
3851: }
3852: return $currentstring;
3853: }
3854:
3855: sub end_nolayer {
3856: my ($target,$token) = @_;
3857: my $currentstring = '';
1.325 albertel 3858: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3859: $currentstring = $token->[2];
3860: }
3861: return $currentstring;
3862: }
3863:
1.179 sakharuk 3864: #-- <noscript> tag (end tag required)
1.122 albertel 3865: sub start_noscript {
3866: my ($target,$token) = @_;
3867: my $currentstring = '';
1.325 albertel 3868: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3869: $currentstring = $token->[4];
3870: }
3871: return $currentstring;
3872: }
3873:
3874: sub end_noscript {
3875: my ($target,$token) = @_;
3876: my $currentstring = '';
1.325 albertel 3877: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3878: $currentstring = $token->[2];
3879: }
3880: return $currentstring;
3881: }
3882:
1.179 sakharuk 3883: #-- <object> tag (end tag required)
1.122 albertel 3884: sub start_object {
3885: my ($target,$token) = @_;
3886: my $currentstring = '';
1.325 albertel 3887: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3888: $currentstring = $token->[4];
3889: }
3890: return $currentstring;
3891: }
3892:
3893: sub end_object {
3894: my ($target,$token) = @_;
3895: my $currentstring = '';
1.325 albertel 3896: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3897: $currentstring = $token->[2];
3898: }
3899: return $currentstring;
3900: }
3901:
1.179 sakharuk 3902: #-- <optgroup> tag (end tag required)
1.122 albertel 3903: sub start_optgroup {
3904: my ($target,$token) = @_;
3905: my $currentstring = '';
1.325 albertel 3906: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3907: $currentstring = $token->[4];
3908: }
3909: return $currentstring;
3910: }
3911:
3912: sub end_optgroup {
3913: my ($target,$token) = @_;
3914: my $currentstring = '';
1.325 albertel 3915: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3916: $currentstring = $token->[2];
3917: }
3918: return $currentstring;
3919: }
3920:
1.179 sakharuk 3921: #-- <samp> tag (end tag required)
1.122 albertel 3922: sub start_samp {
3923: my ($target,$token) = @_;
3924: my $currentstring = '';
1.325 albertel 3925: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3926: $currentstring = $token->[4];
1.179 sakharuk 3927: } elsif ($target eq 'tex') {
3928: $currentstring='\texttt{';
3929: }
1.122 albertel 3930: return $currentstring;
3931: }
3932:
3933: sub end_samp {
3934: my ($target,$token) = @_;
3935: my $currentstring = '';
1.325 albertel 3936: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3937: $currentstring = $token->[2];
1.179 sakharuk 3938: } elsif ($target eq 'tex') {
3939: $currentstring='}';
3940: }
1.122 albertel 3941: return $currentstring;
3942: }
3943:
3944: #-- <server> tag
3945: sub start_server {
3946: my ($target,$token) = @_;
3947: my $currentstring = '';
1.325 albertel 3948: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3949: $currentstring = $token->[4];
3950: }
3951: return $currentstring;
3952: }
3953:
3954: sub end_server {
3955: my ($target,$token) = @_;
3956: my $currentstring = '';
1.325 albertel 3957: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3958: $currentstring = $token->[2];
3959: }
3960: return $currentstring;
3961: }
3962:
1.179 sakharuk 3963: #-- <spacer> tag (end tag forbidden)
1.122 albertel 3964: sub start_spacer {
3965: my ($target,$token) = @_;
1.279 foxr 3966: my $currentstring = &end_p(); # Close off any open <p> tag.
1.325 albertel 3967: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 3968: $currentstring .= $token->[4];
1.122 albertel 3969: }
3970: return $currentstring;
3971: }
3972:
3973: sub end_spacer {
3974: my ($target,$token) = @_;
3975: my $currentstring = '';
1.325 albertel 3976: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3977: $currentstring = $token->[2];
3978: }
3979: return $currentstring;
3980: }
3981:
1.179 sakharuk 3982: #-- <span> tag (end tag required)
1.122 albertel 3983: sub start_span {
3984: my ($target,$token) = @_;
3985: my $currentstring = '';
1.325 albertel 3986: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3987: $currentstring = $token->[4];
3988: }
3989: return $currentstring;
3990: }
3991:
3992: sub end_span {
3993: my ($target,$token) = @_;
3994: my $currentstring = '';
1.325 albertel 3995: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3996: $currentstring = $token->[2];
3997: }
3998: return $currentstring;
3999: }
4000:
1.179 sakharuk 4001: #-- <tbody> tag (end tag optional)
1.122 albertel 4002: sub start_tbody {
4003: my ($target,$token) = @_;
4004: my $currentstring = '';
1.325 albertel 4005: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4006: $currentstring = $token->[4];
4007: }
4008: return $currentstring;
4009: }
4010:
4011: sub end_tbody {
4012: my ($target,$token) = @_;
4013: my $currentstring = '';
1.325 albertel 4014: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4015: $currentstring = $token->[2];
4016: }
4017: return $currentstring;
4018: }
4019:
1.166 sakharuk 4020: #-- <tfoot> tag (end tag optional)
1.122 albertel 4021: sub start_tfoot {
4022: my ($target,$token) = @_;
4023: my $currentstring = '';
1.325 albertel 4024: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4025: $currentstring = $token->[4];
4026: }
4027: return $currentstring;
4028: }
4029:
4030: sub end_tfoot {
4031: my ($target,$token) = @_;
4032: my $currentstring = '';
1.325 albertel 4033: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4034: $currentstring = $token->[2];
4035: }
4036: return $currentstring;
4037: }
4038:
1.166 sakharuk 4039: #-- <thead> tag (end tag optional)
1.122 albertel 4040: sub start_thead {
4041: my ($target,$token) = @_;
4042: my $currentstring = '';
1.325 albertel 4043: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4044: $currentstring = $token->[4];
4045: }
4046: return $currentstring;
4047: }
1.10 www 4048:
1.122 albertel 4049: sub end_thead {
4050: my ($target,$token) = @_;
4051: my $currentstring = '';
1.325 albertel 4052: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4053: $currentstring = $token->[2];
4054: }
4055: return $currentstring;
4056: }
1.119 www 4057:
1.122 albertel 4058: #-- <var> tag
4059: sub start_var {
1.44 sakharuk 4060: my ($target,$token) = @_;
4061: my $currentstring = '';
1.325 albertel 4062: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4063: $currentstring = $token->[4];
1.163 sakharuk 4064: } elsif ($target eq 'tex') {
4065: $currentstring = '\textit{';
4066: }
1.44 sakharuk 4067: return $currentstring;
4068: }
1.10 www 4069:
1.122 albertel 4070: sub end_var {
4071: my ($target,$token) = @_;
1.44 sakharuk 4072: my $currentstring = '';
1.325 albertel 4073: if ($target eq 'web' || $target eq 'webgrade') {
1.163 sakharuk 4074: $currentstring = $token->[2];
4075: } elsif ($target eq 'tex') {
4076: $currentstring = '}';
1.44 sakharuk 4077: }
4078: return $currentstring;
4079: }
1.119 www 4080:
1.163 sakharuk 4081: #-- <wbr> tag (end tag forbidden)
1.122 albertel 4082: sub start_wbr {
4083: my ($target,$token) = @_;
4084: my $currentstring = '';
1.325 albertel 4085: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4086: $currentstring = $token->[4];
4087: }
4088: return $currentstring;
1.98 albertel 4089: }
4090:
1.122 albertel 4091: sub end_wbr {
4092: my ($target,$token) = @_;
4093: my $currentstring = '';
1.325 albertel 4094: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4095: $currentstring = $token->[2];
4096: }
4097: return $currentstring;
1.98 albertel 4098: }
1.134 sakharuk 4099:
4100: #-- <hideweboutput> tag
4101: sub start_hideweboutput {
4102: my ($target,$token) = @_;
1.325 albertel 4103: if ($target eq 'web' || $target eq 'webgrade') {
1.134 sakharuk 4104: &Apache::lonxml::startredirection();
4105: }
4106: return '';
4107: }
4108:
4109: sub end_hideweboutput {
4110: my ($target,$token) = @_;
4111: my $currentstring = '';
1.325 albertel 4112: if ($target eq 'web' || $target eq 'webgrade') {
1.134 sakharuk 4113: $currentstring = &Apache::lonxml::endredirection();
4114: }
4115: return '';
4116: }
4117:
1.94 sakharuk 4118:
4119: sub image_replication {
4120: my $src = shift;
1.187 albertel 4121: if (not -e $src) { &Apache::lonnet::repcopy($src); }
4122: #replicates eps or ps
4123: my $epssrc = my $pssrc = $src;
4124: $epssrc =~ s/\.(gif|jpg|jpeg|png)$/.eps/i;
4125: $pssrc =~ s/\.(gif|jpg|jpeg|png)$/.ps/i;
4126: if (not -e $epssrc && not -e $pssrc) {
4127: my $result=&Apache::lonnet::repcopy($epssrc);
1.264 raeburn 4128: if ($result ne 'ok') { &Apache::lonnet::repcopy($pssrc); }
1.94 sakharuk 4129: }
4130: return '';
1.195 sakharuk 4131: }
1.275 foxr 4132: #
4133: # Get correct sizing parameter for an image given
4134: # it's initial ht. and wid. This allows sizing of
4135: # images that are generated on-the-fly (e.g. gnuplot)
4136: # as well as serving as a utility for image_size.
4137: #
4138: # Parameter:
4139: # height_param
4140: # width_param - Initial picture dimensions.
4141: # scaling - A scale factor.
4142: # parstack, - the current stack of tag attributes
4143: # from the xml parser
4144: # safeeval, - pointer to the safespace
4145: # depth, - from what level in the stack to look for attributes
4146: # (assumes -1 if unspecified)
4147: # cis - look for attrubutes case insensitively
4148: # (assumes false)
4149: #
4150: # Returns:
4151: # height, width - new dimensions.
4152: #
4153: sub resize_image {
4154: my ($height_param, $width_param, $scaling,
4155: $parstack, $safeeval, $depth, $cis) = @_;
4156:
4157: # First apply the scaling...
1.271 foxr 4158:
1.275 foxr 4159: $height_param = $height_param * $scaling;
4160: $width_param = $width_param * $scaling;
1.261 foxr 4161:
1.197 sakharuk 4162: #do we have any specified LaTeX size of the picture?
1.261 foxr 4163: my $toget='TeXwidth';
4164: if ($cis) {
4165: $toget=lc($toget);
4166: }
1.256 albertel 4167: my $TeXwidth = &Apache::lonxml::get_param($toget,$parstack,
4168: $safeeval,$depth,$cis);
4169: $toget='TeXheight'; if ($cis) { $toget=lc($toget); }
4170: my $TeXheight = &Apache::lonxml::get_param($toget,$parstack,
4171: $safeeval,$depth,$cis);
1.197 sakharuk 4172: #do we have any specified web size of the picture?
4173: my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval,
1.256 albertel 4174: $depth,1);
4175: if ($TeXwidth) {
1.252 matthew 4176: my $old_width_param=$width_param;
1.197 sakharuk 4177: if ($TeXwidth=~/(\d+)\s*\%/) {
1.267 albertel 4178: $width_param = $1*$env{'form.textwidth'}/100;
1.197 sakharuk 4179: } else {
4180: $width_param = $TeXwidth;
4181: }
1.266 albertel 4182: if ($TeXheight) {
4183: $height_param = $TeXheight;
4184: } elsif ($old_width_param) {
4185: $height_param=$TeXwidth/$old_width_param*$height_param;
4186: }
1.256 albertel 4187: } elsif ($TeXheight) {
1.248 foxr 4188: $height_param = $TeXheight;
1.266 albertel 4189: if ($height_param) {
4190: $width_param = $TeXheight/$height_param*$width_param;
4191: }
1.256 albertel 4192: } elsif ($width) {
1.252 matthew 4193: my $old_width_param=$width_param;
1.256 albertel 4194: $width_param = $width*$scaling;
1.266 albertel 4195: if ($old_width_param) {
4196: $height_param=$width_param/$old_width_param*$height_param;
4197: }
1.252 matthew 4198: }
1.267 albertel 4199: if ($width_param > $env{'form.textwidth'}) {
1.252 matthew 4200: my $old_width_param=$width_param;
1.267 albertel 4201: $width_param =0.95*$env{'form.textwidth'};
1.266 albertel 4202: if ($old_width_param) {
4203: $height_param=$width_param/$old_width_param*$height_param;
4204: }
1.197 sakharuk 4205: }
1.275 foxr 4206:
4207: return ($height_param, $width_param);
4208: }
4209:
4210: sub image_size {
4211: my ($src,$scaling,$parstack,$safeeval,$depth,$cis)=@_;
4212:
4213: #size of image from gif/jpg/jpeg/png
4214: my $ressrc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
4215: if (-e $ressrc) {
4216: $src = $ressrc;
4217: }
4218: my $image = Image::Magick->new;
4219: my $current_figure = $image->Read($src);
4220: my $width_param = $image->Get('width');
4221: my $height_param = $image->Get('height');
4222: &Apache::lonxml::debug("Image magick says: $src : Height = $height_param width = $width_param");
4223: undef($image);
4224:
4225: ($height_param, $width_param) = &resize_image($height_param, $width_param,
4226: $scaling, $parstack, $safeeval,
4227: $depth, $cis);
4228:
1.248 foxr 4229: return ($height_param, $width_param);
4230: }
4231:
4232: sub image_width {
4233: my ($height, $width) = &image_size(@_);
4234: return $width;
4235: }
4236: # Not yet 100% sure this is correct in all circumstances..
4237: # due to my uncertainty about mods to image_size.
4238: #
4239: sub image_height {
4240: my ($height, $width) = &image_size(@_);
4241: return $height;
1.197 sakharuk 4242: }
4243:
1.256 albertel 4244: sub get_eps_image {
4245: my ($src)=@_;
1.261 foxr 4246: my $orig_src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1], $src);
1.285 foxr 4247:
4248: # In order to prevent the substitution of the alt text, we need to
4249: # be sure the orig_src file is on system now so:
4250:
4251: if (! -e $orig_src) {
4252: &Apache::lonnet::repcopy($orig_src); # Failure is not completely fatal.
4253: }
1.275 foxr 4254: &Apache::lonxml::debug("get_eps_image: Original image: $orig_src");
1.344 albertel 4255: my ($spath, $sname, $sext) = &fileparse($src, qr/\.(gif|png|jpg|jpeg)/i);
1.256 albertel 4256: $src=~s/\.(gif|png|jpg|jpeg)$/\.eps/i;
4257: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.275 foxr 4258: &Apache::lonxml::debug("Filelocation gives: $src");
1.256 albertel 4259: if (! -e $src) {
1.261 foxr 4260: &Apache::lonxml::debug("$src does not exist");
1.264 raeburn 4261: if (&Apache::lonnet::repcopy($src) ne 'ok' ) {
1.261 foxr 4262: &Apache::lonxml::debug("Repcopy of $src failed (1)");
1.256 albertel 4263: #if replication failed try to find ps file
4264: $src=~s/\.eps$/\.ps/;
1.261 foxr 4265: &Apache::lonxml::debug("Now looking for $src");
1.270 foxr 4266: #if no ps file try to replicate it.
4267: my $didrepcopy = &Apache::lonnet::repcopy($src);
4268: &Apache::lonxml::debug("repcopy of $src ... $didrepcopy");
4269: if ( (not -e $src) ||
4270: ($didrepcopy ne 'ok')) {
1.261 foxr 4271: &Apache::lonxml::debug("Failed to find or replicate $src");
4272:
1.256 albertel 4273: #if replication failed try to produce eps file dynamically
4274: $src=~s/\.ps$/\.eps/;
4275: my $temp_file;
1.267 albertel 4276: open(FILE,">>/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat");
1.256 albertel 4277: my $newsrc=$orig_src;
4278: $newsrc =~ s|(.*)/res/|/home/httpd/html/res/|;
1.275 foxr 4279: &Apache::lonxml::debug("queueing $newsrc for dynamic eps production.");
1.344 albertel 4280: print FILE ("$newsrc\n");
4281: close(FILE);
1.256 albertel 4282: $src=~s|/home/httpd/html/res|/home/httpd/prtspool|;
4283: $src=~s|/home/([^/]*)/public_html/|/home/httpd/prtspool/$1/|;
1.283 albertel 4284: if ($sext ne "") { # Put the ext. back in to uniquify.
4285: $src =~ s/\.eps$/$sext.eps/;
4286: }
1.341 foxr 4287:
1.256 albertel 4288: }
1.343 foxr 4289:
1.256 albertel 4290: }
1.341 foxr 4291: } else {
4292: # If the postscript file has spaces in its name,
4293: # LaTeX will gratuitiously vomit. Therefore
4294: # queue such files for copy with " " replaced by "_".
4295: # printout.pm will know them by their .ps or .eps extensions.
4296: my $newsrc = $orig_src;
4297: $newsrc =~ s|(.*)/res/|/home/httpd/html/res/|;
4298: open(FILE,">>/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat");
1.343 foxr 4299: print FILE "$src\n";
1.341 foxr 4300: close FILE;
4301: $src=~s|/home/httpd/html/res|/home/httpd/prtspool|;
4302: $src=~s|/home/([^/]*)/public_html/|/home/httpd/prtspool/$1/|;
1.256 albertel 4303: }
4304: my ($path,$file)=($src=~m|(.*)/([^/]*)$|);
1.344 albertel 4305: $path =~ s/ /\_/g;
1.343 foxr 4306: $file =~ s/ /\_/g;
1.261 foxr 4307: &Apache::lonxml::debug("get_eps_image returning: $path / $file<BR />");
1.256 albertel 4308: return ($path.'/',$file);
4309: }
4310:
1.195 sakharuk 4311: sub eps_generation {
4312: my ($src,$file,$width_param) = @_;
1.267 albertel 4313: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat";
1.195 sakharuk 4314: my $temp_file = Apache::File->new('>>'.$filename);
4315: print $temp_file "$src\n";
4316: my $newsrc = $src;
4317: $newsrc =~ s/(\.gif|\.jpg|\.jpeg)$/\.eps/i;
1.345 albertel 4318: $newsrc=~s{/home/httpd/html/res}{};
4319: $newsrc=~s{/home/($LONCAPA::username_re)/public_html/}{/$1/};
4320: $newsrc=~s{/\./}{/};
4321: $newsrc=~s{/([^/]+)\.(ps|eps)}{/};
4322: if ($newsrc=~m{/home/httpd/lonUsers/}) {
4323: $newsrc=~s{/home/httpd/lonUsers}{};
4324: $newsrc=~s{/($LONCAPA::domain_re)/./././}{/$1/};
1.213 sakharuk 4325: }
1.345 albertel 4326: if ($newsrc=~m{/userfiles/}) {
1.239 sakharuk 4327: return ' \graphicspath{{'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4328: } else {
4329: return ' \graphicspath{{/home/httpd/prtspool'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4330: }
1.197 sakharuk 4331: }
4332:
4333: sub file_path {
4334: my $src=shift;
4335: my ($file,$path);
4336: if ($src =~ m!(.*)/([^/]*)$!) {
4337: $file = $2;
4338: $path = $1.'/';
4339: }
4340: return $file,$path;
1.126 sakharuk 4341: }
1.294 foxr 4342: # Converts a measurement in to mm from any of
4343: # the other valid LaTeX units of measure.
4344: # If the units of measure are missing from the
4345: # parameter, it is assumed to be in and returned
4346: # with mm units of measure
1.126 sakharuk 4347: sub recalc {
4348: my $argument = shift;
4349: if (not $argument=~/(mm|cm|in|pc|pt)/) {return $argument.' mm';}
1.132 sakharuk 4350: $argument=~/\s*(\d+\.?\d*)\s*(mm|cm|in|pc|pt)/;
1.126 sakharuk 4351: my $value=$1;
4352: my $units=$2;
4353: if ($units eq 'cm') {
4354: $value*=10;
4355: } elsif ($units eq 'in') {
4356: $value*=25.4;
4357: } elsif ($units eq 'pc') {
4358: $value*=(25.4*12/72.27);
4359: } elsif ($units eq 'pt') {
4360: $value*=(25.4/72.27);
4361: }
4362: return $value.' mm';
1.94 sakharuk 4363: }
1.184 sakharuk 4364:
4365: sub LATEX_length {
4366: my $garbage=shift;
1.206 sakharuk 4367: $garbage=~s/^\s+$//;
4368: $garbage=~s/^\s+(\S.*)/$1/;#space before
4369: $garbage=~s/(.*\S)\s+$/$1/;#space after
4370: $garbage=~s/(\s)+/$1/;#only one space
4371: $garbage=~s/(\\begin{([^\}]+)}|\\end{([^\}]+)})//g;#remove LaTeX \begin{...} and \end{...}
4372: $garbage=~s/(\$\_\{|\$\_|\$\^{|\$\^|\}\$)//g;#remove $_{,$_,$^{,$^,}$
4373: $garbage=~s/([^\\])\$/$1/g;#$
4374: $garbage=~s/(\\ensuremath\{\_\{|\\ensuremath\{\_|\\ensuremath\{\^{|\\ensuremath\{\^|\})//g;#remove \ensuremath{...}
4375: $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 4376: $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;
4377: $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;
4378: $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 4379: $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;
4380: $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;
4381: $garbage=~s/(\\hat{([^}]+)}|\\check{([^}]+)}|\\dot{([^}]+)}|\\breve{([^}]+)}|\\acute{([^}]+)}|\\ddot{([^}]+)}|\\grave{([^}]+)}|\\tilde{([^}]+)}|\\mathring{([^}]+)}|\\bar{([^}]+)}|\\vec{([^}]+)})/$1/g;
4382: #remove some other LaTeX command
4383: $garbage=~s|\\(\w+)\\|\\|g;
4384: $garbage=~s|\\(\w+)(\s*)|$2|g;
4385: $garbage=~s|\+|11|g;
1.184 sakharuk 4386: my $value=length($garbage);
4387: return $value;
4388: }
4389:
4390:
1.287 foxr 4391: # is_inside_of $tagstack $tag
4392: # This sub returns true if the current state of Xml processing
4393: # is inside of the tag.
4394: # Parameters:
4395: # tagstack - The tagstack from the parser.
4396: # tag - The tag (without the <>'s.).
4397: # Sample usage:
4398: # if (is_inside_of($tagstack "table")) {
4399: # # I'm in a table....
4400: # }
4401: sub is_inside_of {
4402: my ($tagstack, $tag) = @_;
4403: my @stack = @$tagstack;
4404: for (my $i = ($#stack - 1); $i >= 0; $i--) {
4405: if ($stack[$i] eq $tag) {
4406: return 1;
4407: }
4408: }
4409: return 0;
4410: }
1.184 sakharuk 4411:
1.94 sakharuk 4412:
1.1 sakharuk 4413: 1;
4414: __END__
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