Annotation of loncom/xml/londefdef.pm, revision 1.325
1.1 sakharuk 1: # The LearningOnline Network with CAPA
2: # Tags Default Definition Module
3: #
1.325 ! albertel 4: # $Id: londefdef.pm,v 1.324 2006/03/23 23:47:12 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;
1.302 foxr 51: # use Data::Dumper;
1.160 sakharuk 52:
1.38 harris41 53: BEGIN {
1.15 sakharuk 54:
1.135 sakharuk 55: &Apache::lonxml::register('Apache::londefdef',('a','abbr','acronym','accessrule','address','allow','applet','area','b','base','basefont','bgo','bgsound','big','blink','blockquote','blankspace','body','br','button','caption','center','cite','code','col','colgroup','dd','del','dfn','dir','div','dl','dt','em','embed','externallink','fieldset','font','form','frame','frameset','h1','h2','h3','h4','h5','h6','head','hr','html','i','iframe','img','input','ins','insert','isindex','kbd','keygen','label','layer','legend','li','link','m','map','marquee','menu','meta','multicol','nobr','noembed','noframes','nolayer','noscript','object','ol','optgroup','option','output','p','param','pre','q','s','samp','select','server','small','spacer','span','strike','strong','sub','sup','table','tbody','td','textarea','tfoot','th','thead','title','tr','tt','tthoption','u','ul','var','wbr','hideweboutput'));
1.15 sakharuk 56:
1.188 albertel 57: }
58:
1.294 foxr 59: #
60: # Dumps all elements of the table structure.
61: # Need this 'cause evidently when given an array, Data::Dumper only seems
62: # to dump element 0.
63: #
1.302 foxr 64: #sub debug_dump_table {
65: # my $lastrow = $#Apache::londefdef::table;
66: # &Apache::lonnet::logthis("Dumping table: Last row index: $lastrow");
67: # my $row;
68: # for ($row =0; $row <= $lastrow; $row++ ) {
69: # my $text = Dumper($Apache::londefdef::table[$row]);
70: # &Apache::lonnet::logthis("table [ $row ]".$text);
71: # }
72: #}
1.188 albertel 73: sub initialize_londefdef {
74: $Apache::londefdef::TD_redirection=0;
75: @Apache::londefdef::table = ();
76: $Apache::londefdef::select=0;
1.243 albertel 77: undef(@Apache::londefdef::description);
78: @Apache::londefdef::DD=(0);
79: @Apache::londefdef::DT=(0);
1.244 albertel 80: @Apache::londefdef::seenDT=(0);
1.238 albertel 81: $Apache::londefdef::list_index=0;
1.3 sakharuk 82: }
1.1 sakharuk 83:
1.35 sakharuk 84: #======================= TAG SUBROUTINES =====================
1.8 sakharuk 85: #-- <output>
1.21 albertel 86: sub start_output {
1.122 albertel 87: my ($target) = @_;
88: if ($target eq 'meta') { $Apache::lonxml::metamode--; }
89: return '';
1.21 albertel 90: }
91: sub end_output {
1.122 albertel 92: my ($target) = @_;
93: if ($target eq 'meta') { $Apache::lonxml::metamode++; }
94: return '';
1.21 albertel 95: }
1.4 sakharuk 96: #-- <m> tag
1.33 albertel 97: sub start_m {
1.190 albertel 98: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 99: my $currentstring = '';
1.193 albertel 100: my $inside = &Apache::lonxml::get_all_text_unbalanced("/m",$parser);
1.191 albertel 101: if ($target eq 'web' || $target eq 'analyze') {
1.122 albertel 102: &Apache::lonxml::debug("M is starting with:$inside:");
103: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
104: if ($eval eq 'on') {
105: $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
106: #&Apache::lonxml::debug("M is evaulated to:$inside:");
107: }
1.317 albertel 108: my $tex = $inside;
1.276 albertel 109: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
110: $currentstring = &Apache::lontexconvert::converted(\$inside,$display);
1.122 albertel 111: if ($Apache::lontexconvert::errorstring) {
1.317 albertel 112: my $errormsg='<pre>'.&HTML::Entities::encode($Apache::lontexconvert::errorstring,'<>&"').'</pre> occured while attempting to convert this TeX: <pre>';
113: $tex = &HTML::Entities::encode($tex,'<>&"');
114: my ($linenumber) =
115: ($Apache::lontexconvert::errorstring =~ /Line (\d+)/);
116: if (defined($linenumber)) {
117: my @tex=split("\n",$tex);
118: $tex[$linenumber]='<b><font color="red">'.
119: $tex[$linenumber].'</font></b>';
120: $tex=join("\n",@tex);
121: }
122: &Apache::lonxml::warning($errormsg.$tex.'</pre>');
1.122 albertel 123: $Apache::lontexconvert::errorstring='';
124: }
125: #&Apache::lonxml::debug("M is ends with:$currentstring:");
1.178 albertel 126: $Apache::lonxml::post_evaluate=0;
1.122 albertel 127: } elsif ($target eq 'tex') {
1.190 albertel 128: $currentstring = $inside;
1.178 albertel 129: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
130: if ($eval eq 'on') {
131: $currentstring=&Apache::run::evaluate($currentstring,$safeeval,$$parstack[-1]);
132: }
1.122 albertel 133: if ($currentstring=~/^(\s*\\\\\s*)*$/) {$currentstring = ' \vskip 0 mm ';}
1.257 albertel 134: # detect simple math mode entry exits, and convert them
135: # to use \ensuremath
136: if ($currentstring=~/^\s*\$[^\$].*[^\$]\$\s*$/) {
1.293 albertel 137: $currentstring=~s/^(\s*)\$/$1/;
138: $currentstring=~s/\$(\s*)$/$1/;
1.257 albertel 139: $currentstring='\ensuremath{'.$currentstring.'}';
140: }
1.178 albertel 141: $Apache::lonxml::post_evaluate=0;
1.122 albertel 142: }
143: return $currentstring;
1.33 albertel 144: }
1.122 albertel 145:
1.33 albertel 146: sub end_m {
1.122 albertel 147: my ($target,$token) = @_;
148: my $currentstring = '';
1.204 albertel 149: if ($target eq 'tex') {
1.122 albertel 150: $currentstring = "";
151: }
152: return $currentstring;
1.33 albertel 153: }
1.110 albertel 154:
155: sub start_tthoption {
1.299 albertel 156: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 157: my $result;
1.325 ! albertel 158: if ($target eq 'web' || $target eq 'webgrade') {
1.299 albertel 159: my $inside = &Apache::lonxml::get_all_text("/tthoption",$parser,
160: $style);
1.122 albertel 161: $inside=~s/^\s*//;
1.267 albertel 162: if ($env{'browser.mathml'}) {
1.122 albertel 163: &tth::ttmoptions($inside);
164: } else {
165: &tth::tthoptions($inside);
166: }
167: }
168: return $result;
1.110 albertel 169: }
170:
171: sub end_tthoption {
1.122 albertel 172: my ($target,$token) = @_;
173: my $result;
174: return $result;
1.110 albertel 175: }
176:
1.181 sakharuk 177: #-- <html> tag (end tag optional)
1.100 albertel 178: sub start_html {
179: my ($target,$token) = @_;
180: my $currentstring = '';
1.267 albertel 181: my $options=$env{'course.'.$env{'request.course.id'}.'.tthoptions'};
1.196 albertel 182: &Apache::lontexconvert::init_tth();
1.269 albertel 183: if ($target eq 'web' || $target eq 'edit' || $target eq 'webgrade' ) {
1.242 albertel 184: $currentstring = &Apache::lonxml::xmlbegin();
1.100 albertel 185: } elsif ($target eq 'tex') {
1.307 foxr 186: $currentstring .= '\documentclass[letterpaper,twoside]{article}';
1.267 albertel 187: if (($env{'form.latex_type'}=~'batchmode') ||
188: (!$env{'request.role.adv'})) {$currentstring .='\batchmode';}
1.217 sakharuk 189: $currentstring .= '\newcommand{\keephidden}[1]{}'.
190: '\renewcommand{\deg}{$^{\circ}$}'.
1.306 foxr 191: '\usepackage{multirow}'.
1.217 sakharuk 192: '\usepackage{longtable}'.
193: '\usepackage{textcomp}'.
194: '\usepackage{makeidx}'.
195: '\usepackage[dvips]{graphicx}'.
1.286 foxr 196: '\usepackage{wrapfig}'.
1.248 foxr 197: '\usepackage{picins}'.
1.217 sakharuk 198: '\usepackage{epsfig}'.
199: '\usepackage{calc}'.
200: '\usepackage{amsmath}'.
201: '\usepackage{amssymb}'.
202: '\usepackage{amsfonts}'.
203: '\usepackage{amsthm}'.
204: '\usepackage{amscd}'.
205: '\newenvironment{choicelist}{\begin{list}{}{\setlength{\rightmargin}{0in}\setlength{\leftmargin}{0.13in}\setlength{\topsep}{0.05in}\setlength{\itemsep}{0.022in}\setlength{\parsep}{0in}\setlength{\belowdisplayskip}{0.04in}\setlength{\abovedisplayskip}{0.05in}\setlength{\abovedisplayshortskip}{-0.04in}\setlength{\belowdisplayshortskip}{0.04in}}}{\end{list}}'.
206: '\renewenvironment{theindex}{\begin{list}{}{{\vskip 1mm \noindent \large\textbf{Index}} \newline \setlength{\rightmargin}{0in}\setlength{\leftmargin}{0.13in}\setlength{\topsep}{0.01in}\setlength{\itemsep}{0.1in}\setlength{\parsep}{-0.02in}\setlength{\belowdisplayskip}{0.01in}\setlength{\abovedisplayskip}{0.01in}\setlength{\abovedisplayshortskip}{-0.04in}\setlength{\belowdisplayshortskip}{0.01in}}}{\end{list}}';
1.100 albertel 207: }
208: return $currentstring;
209: }
1.122 albertel 210:
211: sub end_html {
1.232 sakharuk 212: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 213: my $currentstring = '';
1.324 albertel 214: if ($target eq 'web' || $target eq 'webgrade') {
1.259 albertel 215: $currentstring = '</html>';
1.122 albertel 216: }
217: return $currentstring;
218: }
219:
1.181 sakharuk 220: #-- <head> tag (end tag optional)
1.122 albertel 221: sub start_head {
222: my ($target,$token) = @_;
223: my $currentstring = '';
1.324 albertel 224: if ($target eq 'web' || $target eq 'webgrade') {
1.242 albertel 225: $currentstring = $token->[4].&Apache::lonxml::fontsettings();
1.122 albertel 226: }
227: return $currentstring;
228: }
229:
230: sub end_head {
231: my ($target,$token) = @_;
232: my $currentstring = '';
1.324 albertel 233: if (($target eq 'web' && $env{'request.state'} eq 'published') ||
234: ($target eq 'webgrade' && $env{'request.state'} eq 'published')) {
1.122 albertel 235: $currentstring = &Apache::lonmenu::registerurl(undef,$target).
236: $token->[2];
237: }
238: return $currentstring;
239: }
240:
1.181 sakharuk 241: #-- <map> tag (end tag required)
1.122 albertel 242: sub start_map {
243: my ($target,$token) = @_;
244: my $currentstring = '';
1.325 ! albertel 245: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 246: $currentstring = $token->[4];
247: }
248: return $currentstring;
249: }
250:
251: sub end_map {
252: my ($target,$token) = @_;
253: my $currentstring = '';
1.325 ! albertel 254: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 255: $currentstring = $token->[2];
256: }
257: return $currentstring;
258: }
259:
1.181 sakharuk 260: #-- <select> tag (end tag required)
1.122 albertel 261: sub start_select {
262: my ($target,$token) = @_;
263: my $currentstring = '';
1.325 ! albertel 264: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 265: $currentstring = $token->[4];
1.181 sakharuk 266: } elsif ($target eq 'tex') {
267: $Apache::londefdef::select=0;
268: }
1.122 albertel 269: return $currentstring;
270: }
271:
272: sub end_select {
273: my ($target,$token) = @_;
274: my $currentstring = '';
1.325 ! albertel 275: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 276: $currentstring = $token->[2];
277: }
278: return $currentstring;
279: }
280:
1.181 sakharuk 281: #-- <option> tag (end tag optional)
1.122 albertel 282: sub start_option {
1.181 sakharuk 283: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 284: my $currentstring = '';
1.325 ! albertel 285: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 286: $currentstring = $token->[4];
1.181 sakharuk 287: } elsif ($target eq 'tex') {
288: $Apache::londefdef::select++;
289: if ($Apache::londefdef::select == 1) {
290: $currentstring='\noindent\fbox{'.&Apache::lonxml::get_param('value',$parstack,$safeeval).'}\keephidden{';
291: } else {
292: $currentstring='\keephidden{';
293: }
294: }
1.122 albertel 295: return $currentstring;
296: }
297:
298: sub end_option {
299: my ($target,$token) = @_;
300: my $currentstring = '';
1.325 ! albertel 301: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 302: $currentstring = $token->[2];
1.181 sakharuk 303: } elsif ($target eq 'tex') {
304: $currentstring='}';
305: }
1.122 albertel 306: return $currentstring;
307: }
308:
1.181 sakharuk 309: #-- <input> tag (end tag forbidden)
1.122 albertel 310: sub start_input {
311: my ($target,$token) = @_;
312: my $currentstring = '';
1.325 ! albertel 313: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 314: $currentstring = $token->[4];
315: }
316: return $currentstring;
317: }
318:
319: sub end_input {
320: my ($target,$token) = @_;
321: my $currentstring = '';
1.325 ! albertel 322: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 323: $currentstring = $token->[2];
324: }
325: return $currentstring;
326: }
327:
1.181 sakharuk 328: #-- <textarea> tag (end tag required)
1.122 albertel 329: sub start_textarea {
330: my ($target,$token) = @_;
331: my $currentstring = '';
1.325 ! albertel 332: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 333: $currentstring = $token->[4];
334: }
335: return $currentstring;
336: }
337:
338: sub end_textarea {
339: my ($target,$token) = @_;
340: my $currentstring = '';
1.325 ! albertel 341: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 342: $currentstring = $token->[2];
343: }
344: return $currentstring;
345: }
346:
1.181 sakharuk 347: #-- <form> tag (end tag required)
1.122 albertel 348: sub start_form {
349: my ($target,$token) = @_;
350: my $currentstring = '';
1.325 ! albertel 351: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 352: $currentstring = $token->[4];
353: }
354: return $currentstring;
355: }
356:
357: sub end_form {
358: my ($target,$token) = @_;
359: my $currentstring = '';
1.325 ! albertel 360: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 361: $currentstring = $token->[2];
362: }
363: return $currentstring;
364: }
365:
1.181 sakharuk 366: #-- <title> tag (end tag required)
1.122 albertel 367: sub start_title {
368: my ($target,$token) = @_;
369: my $currentstring = '';
1.324 albertel 370: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 371: $currentstring = $token->[4];
372: } elsif ($target eq 'tex') {
1.166 sakharuk 373: $currentstring .= '\keephidden{Title of the document: '
1.122 albertel 374: }
375: if ($target eq 'meta') {
376: $currentstring='<title>';
1.185 albertel 377: &start_output($target);
1.122 albertel 378: }
379: return $currentstring;
380: }
381:
382: sub end_title {
383: my ($target,$token) = @_;
384: my $currentstring = '';
1.324 albertel 385: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 386: $currentstring = $token->[2];
387: } elsif ($target eq 'tex') {
388: $currentstring .= '}';
389: }
390: if ($target eq 'meta') {
1.185 albertel 391: &end_output($target);
1.122 albertel 392: $currentstring='</title>';
393: }
394: return $currentstring;
395: }
396:
1.181 sakharuk 397: #-- <meta> tag (end tag forbidden)
1.122 albertel 398: sub start_meta {
1.299 albertel 399: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 400: my $currentstring = '';
1.325 ! albertel 401: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 402: my $args='';
403: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
404: if ($args eq '') {
1.299 albertel 405: &Apache::lonxml::get_all_text("/meta",$parser,$style);
1.122 albertel 406: } else {
407: $currentstring = $token->[4];
1.1 sakharuk 408: }
1.135 sakharuk 409: } elsif ($target eq 'meta') {
1.122 albertel 410: unless (&Apache::lonxml::get_param
411: ('http-equiv',$parstack,$safeeval,undef,1)) {
412: my $name=$token->[2]->{'name'};
413: $name=~tr/A-Z/a-z/;
414: $name=~s/\s/\_/gs;
415: $name=~s/\W//gs;
416: if ($name) {
1.154 www 417: $currentstring='<'.$name;
418: my $display=&Apache::lonxml::get_param
419: ('display',$parstack,$safeeval,undef,1);
420: if ($display) {
421: $display=~s/\"/\'/g;
422: $currentstring.=' display="'.$display.'"';
423: }
424: $currentstring.='>'.
1.122 albertel 425: &Apache::lonxml::get_param
426: ('content',$parstack,$safeeval,undef,1).
1.135 sakharuk 427: '</'.$name.'>';
1.1 sakharuk 428: }
1.154 www 429: my $display=&Apache::lonxml::get_param
430: ('display',$parstack,$safeeval,undef,1);
431: if ($display) {
1.204 albertel 432: $display=&HTML::Entities::encode($display,'<>&"');
1.154 www 433: $currentstring.='<'.$name.'.display>'.$display.
434: '</'.$name.'.display>';
435: }
1.1 sakharuk 436: }
1.135 sakharuk 437: } elsif ($target eq 'tex') {
1.151 sakharuk 438: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
439: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
440: if ((not defined $content) && (not defined $name)) {
441: &Apache::lonxml::startredirection();
442: }
1.122 albertel 443: }
444: return $currentstring;
445: }
446:
447: sub end_meta {
1.165 albertel 448: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 449: my $currentstring = '';
1.325 ! albertel 450: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 451: my $args='';
452: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
453: if ($args ne '') {
1.121 www 454: $currentstring = $token->[4];
1.122 albertel 455: }
1.135 sakharuk 456: } elsif ($target eq 'tex') {
1.165 albertel 457: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
458: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
1.164 albertel 459: if ((not defined $content) && (not defined $name)) {
1.169 albertel 460: &Apache::lonxml::endredirection();
1.164 albertel 461: }
1.135 sakharuk 462: }
1.122 albertel 463: return $currentstring;
464: }
465:
1.121 www 466: # accessrule
1.122 albertel 467: sub start_accessrule {
1.299 albertel 468: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 469: my $currentstring = '';
470: my $eff=&Apache::lonxml::get_param
471: ('effect',$parstack,$safeeval,undef,1);
472: my $realm=&Apache::lonxml::get_param
473: ('realm',$parstack,$safeeval,undef,1);
1.123 www 474: my $role=&Apache::lonxml::get_param
475: ('role',$parstack,$safeeval,undef,1);
476: $realm=~s/\s+//g;
477: $realm=~s/\//\_/g;
478: $realm=~s/^\_//;
479: $realm=~s/\W/\;/g;
480: $role=~s/\s+//g;
481: $role=~s/\//\_/g;
482: $role=~s/\W/\;/g;
1.122 albertel 483: if ($target eq 'web') {
484: my $args='';
485: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
486: if ($args eq '') {
1.299 albertel 487: &Apache::lonxml::get_all_text("/accessrule",$parser,$style);
1.122 albertel 488: } else {
489: $currentstring = $token->[4];
490: }
491: }
492: if ($target eq 'meta') {
1.123 www 493: $currentstring='<rule>'.$eff.':'.$realm.':'.$role.'</rule>';
1.122 albertel 494: }
495: return $currentstring;
496: }
497:
498: sub end_accessrule {
499: my ($target,$token,$tagstack,$parstack,$parser) = @_;
500: my $currentstring = '';
501: if ($target eq 'web') {
502: my $args='';
503: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
504: if ($args ne '') {
505: $currentstring = $token->[4];
506: }
507: }
508: return $currentstring;
509: }
510:
1.181 sakharuk 511: #-- <body> tag (end tag required)
1.122 albertel 512: sub start_body {
513: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
514: my $currentstring = '';
1.244 albertel 515:
1.324 albertel 516: if ($target eq 'web' || $target eq 'webgrade') {
1.170 albertel 517: if ($Apache::lonhomework::parsing_a_problem) {
518: &Apache::lonxml::warning("<body> tag found inside of <problem> tag this can cause problems.");
519: return '';
520: }
1.180 albertel 521: if (!$Apache::lonxml::registered &&
1.267 albertel 522: $env{'request.state'} eq 'published') {
1.122 albertel 523: $currentstring.='<head>'.
524: &Apache::lonmenu::registerurl(undef,$target).'</head>';
525: }
1.155 www 526: # Accessibility
1.267 albertel 527: if ($env{'browser.imagesuppress'} eq 'on') {
1.155 www 528: delete($token->[2]->{'background'});
529: }
1.267 albertel 530: if ($env{'browser.fontenhance'} eq 'on') {
1.155 www 531: my $style='';
532: foreach my $key (keys(%{$token->[2]})) {
533: if ($key =~ /^style$/i) {
534: $style.=$token->[2]->{$key}.';';
535: delete($token->[2]->{$key});
536: }
537: }
538: $token->[2]->{'style'}=$style.'; font-size: x-large;';
539: }
1.267 albertel 540: if ($env{'browser.blackwhite'} eq 'on') {
1.155 www 541: delete($token->[2]->{'font'});
542: delete($token->[2]->{'link'});
543: delete($token->[2]->{'alink'});
544: delete($token->[2]->{'vlink'});
545: delete($token->[2]->{'bgcolor'});
546: delete($token->[2]->{'background'});
547: }
548: # Overload loads
1.122 albertel 549: my $onLoad='';
550: foreach my $key (keys(%{$token->[2]})) {
551: if ($key =~ /^onload$/i) {
552: $onLoad.=$token->[2]->{$key}.';';
553: delete($token->[2]->{$key});
1.121 www 554: }
1.122 albertel 555: }
556: $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad;
557: my $onUnload='';
558: foreach my $key (keys(%{$token->[2]})) {
559: if ($key =~ /^onunload$/i) {
560: $onUnload.=$token->[2]->{$key}.';';
561: delete($token->[2]->{$key});
1.121 www 562: }
563: }
1.122 albertel 564: $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().
565: ';'.$onUnload;
566:
1.278 www 567: $currentstring .= '<'.$token->[1];
1.122 albertel 568: foreach (keys %{$token->[2]}) {
569: $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
570: }
1.278 www 571: $currentstring.='>';
1.284 albertel 572: &Apache::lontexconvert::jsMath_reset();
573: if ($env{'environment.texengine'} eq 'jsMath') {
574: $currentstring.=&Apache::lontexconvert::jsMath_header();
575: }
1.267 albertel 576: if ($env{'request.state'} ne 'published') {
1.278 www 577: if ($env{'environment.remote'} eq 'off') {
578: $currentstring.=
579: &Apache::lonmenu::constspaceform().
580: &Apache::lonmenu::menubuttons(1,'web',1);
581: }
1.122 albertel 582: $currentstring.=(<<EDITBUTTON);
1.278 www 583: <form method="post">
584: <input type="submit" name="editmode" accesskey="e" value="Edit" />
585: </form>
1.40 albertel 586: EDITBUTTON
1.122 albertel 587: } else {
588: $currentstring.=&Apache::lonmenu::menubuttons(undef,$target,1);
1.1 sakharuk 589: }
1.201 albertel 590: $currentstring.=&Apache::lonxml::message_location();
1.122 albertel 591: } elsif ($target eq 'tex') {
592: $currentstring = '\begin{document}';
593: }
594: return $currentstring;
595: }
596:
597: sub end_body {
1.259 albertel 598: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 599: my $currentstring = &end_p(); # Close off unclosed <p>
1.324 albertel 600: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 601: $currentstring .= &Apache::lonxml::xmlend($target,$parser);
1.122 albertel 602: } elsif ($target eq 'tex') {
1.277 foxr 603: $currentstring .= '\strut\newline\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\newline\noindent \end{document}';
1.122 albertel 604: }
605: return $currentstring;
606: }
607:
1.309 albertel 608: # \begin{center} causes a new paragprah spacing that looks odd inside
609: # of a table cell
610: sub center_correction { return '\vspace*{-6 mm}'; }
1.181 sakharuk 611: #-- <center> tag (end tag required)
1.122 albertel 612: sub start_center {
1.309 albertel 613: my ($target,$token,$tagstack) = @_;
1.279 foxr 614: my $currentstring = &end_p(); # Close off any prior para.
1.325 ! albertel 615: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 616: $currentstring .= $token->[4];
1.122 albertel 617: } elsif ($target eq 'tex') {
1.309 albertel 618: if (&is_inside_of($tagstack, "table")) {
619: $currentstring .= ¢er_correction();
620: }
1.277 foxr 621: $currentstring .= '\begin{center}';
1.144 sakharuk 622: }
1.122 albertel 623: return $currentstring;
624: }
625:
626: sub end_center {
1.309 albertel 627: my ($target,$token,$tagstack) = @_;
1.122 albertel 628: my $currentstring = '';
1.325 ! albertel 629: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 630: $currentstring = $token->[2];
631: } elsif ($target eq 'tex') {
632: $currentstring = '\end{center}';
1.144 sakharuk 633: }
1.122 albertel 634: return $currentstring;
635: }
636:
1.181 sakharuk 637: #-- <b> tag (end tag required)
1.279 foxr 638: # NOTE: In TeX mode disables internal <p>
1.122 albertel 639: sub start_b {
640: my ($target,$token) = @_;
641: my $currentstring = '';
1.325 ! albertel 642: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 643: $currentstring = $token->[4];
644: } elsif ($target eq 'tex') {
1.279 foxr 645: &disable_para();
646: $currentstring .= '\textbf{';
1.122 albertel 647: }
648: return $currentstring;
649: }
650:
651: sub end_b {
652: my ($target,$token) = @_;
653: my $currentstring = '';
1.325 ! albertel 654: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 655: $currentstring = $token->[2];
656: } elsif ($target eq 'tex') {
1.279 foxr 657: &enable_para();
658: $currentstring = '}';
1.122 albertel 659: }
660: return $currentstring;
661: }
1.35 sakharuk 662:
1.181 sakharuk 663: #-- <strong> tag (end tag required)
1.279 foxr 664: # NOTE: in TeX mode disables internal <p>
1.122 albertel 665: sub start_strong {
666: my ($target,$token) = @_;
667: my $currentstring = '';
1.325 ! albertel 668: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 669: $currentstring = $token->[4];
670: } elsif ($target eq 'tex') {
1.279 foxr 671: &disable_para();
1.122 albertel 672: $currentstring = '\textbf{';
673: }
674: return $currentstring;
675: }
676:
677: sub end_strong {
678: my ($target,$token) = @_;
679: my $currentstring = '';
1.325 ! albertel 680: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 681: $currentstring = $token->[2];
682: } elsif ($target eq 'tex') {
1.279 foxr 683: &enable_para();
1.122 albertel 684: $currentstring = '}';
1.144 sakharuk 685: }
1.122 albertel 686: return $currentstring;
687: }
688:
1.181 sakharuk 689: #-- <h1> tag (end tag required)
1.122 albertel 690: sub start_h1 {
1.125 sakharuk 691: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 692: my $currentstring = &end_p(); # Close off any prior para.
1.325 ! albertel 693: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 694: $currentstring .= $token->[4];
695: } elsif ($target eq 'tex') {
1.125 sakharuk 696: my $pre;
1.199 albertel 697: my $align=lc(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1));
1.212 sakharuk 698: if ($align eq 'center') {
1.125 sakharuk 699: $pre='\begin{center}';
700: } elsif ($align eq 'left') {
701: $pre='\rlap{';
702: } elsif ($align eq 'right') {
703: $pre=' \hfill \llap{';
704: }
705: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
706: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 707: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 708: } elsif ($target eq 'meta') {
1.277 foxr 709: $currentstring.='<subject>';
1.185 albertel 710: &start_output($target);
1.122 albertel 711: }
712: return $currentstring;
713: }
714:
715: sub end_h1 {
1.125 sakharuk 716: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 717: my $currentstring = '';
1.325 ! albertel 718: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 719: $currentstring .= $token->[2];
720: } elsif ($target eq 'tex') {
1.212 sakharuk 721: my $post='\vskip 0 mm ';
1.125 sakharuk 722: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 723: if ($align eq 'center') {
1.125 sakharuk 724: $post='\end{center}';
725: } elsif ($align eq 'left') {
726: $post='} \hfill'.'\vskip 0 mm ';
727: } elsif ($align eq 'right') {
728: $post='}'.'\vskip 0 mm ';
729: }
730: $currentstring .= '}}'.$post;
1.122 albertel 731: } elsif ($target eq 'meta') {
1.185 albertel 732: &end_output($target);
1.122 albertel 733: $currentstring='</subject>';
734: }
735: return $currentstring;
736: }
737:
1.35 sakharuk 738: #-- <h2> tag
1.122 albertel 739: sub start_h2 {
1.125 sakharuk 740: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 741: my $currentstring = &end_p(); # Close off any prior para.
1.325 ! albertel 742: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 743: $currentstring .= $token->[4];
744: } elsif ($target eq 'tex') {
1.125 sakharuk 745: my $pre;
746: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 747: if ($align eq 'center') {
1.125 sakharuk 748: $pre='\begin{center}';
749: } elsif ($align eq 'left') {
750: $pre='\rlap{';
751: } elsif ($align eq 'right') {
752: $pre=' \hfill \llap{';
753: }
754: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
755: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 756: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 757: }
758: return $currentstring;
759: }
760:
761: sub end_h2 {
1.125 sakharuk 762: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 763: my $currentstring = '';
1.325 ! albertel 764: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 765: $currentstring .= $token->[2];
766: } elsif ($target eq 'tex') {
1.212 sakharuk 767: my $post='\vskip 0 mm ';
1.125 sakharuk 768: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 769: if ($align eq 'center') {
1.125 sakharuk 770: $post='\end{center}';
771: } elsif ($align eq 'left') {
772: $post='} \hfill'.'\vskip 0 mm ';
773: } elsif ($align eq 'right') {
774: $post='}'.'\vskip 0 mm ';
775: }
776: $currentstring .= '}}'.$post;
1.122 albertel 777: }
778: return $currentstring;
779: }
780:
1.35 sakharuk 781: #-- <h3> tag
1.122 albertel 782: sub start_h3 {
1.125 sakharuk 783: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 784: my $currentstring = &end_p(); # Close off any prior para.
1.325 ! albertel 785: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 786: $currentstring .= $token->[4];
787: } elsif ($target eq 'tex') {
1.125 sakharuk 788: my $pre;
789: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 790: if ($align eq 'center') {
1.125 sakharuk 791: $pre='\begin{center}';
792: } elsif ($align eq 'left') {
793: $pre='\rlap{';
794: } elsif ($align eq 'right') {
795: $pre=' \hfill \llap{';
796: }
797: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
798: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 799: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 800: }
801: return $currentstring;
802: }
803:
804: sub end_h3 {
1.125 sakharuk 805: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 806: my $currentstring = '';
1.325 ! albertel 807: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 808: $currentstring .= $token->[2];
809: } elsif ($target eq 'tex') {
1.212 sakharuk 810: my $post='\vskip 0 mm ';
1.125 sakharuk 811: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 812: if ($align eq 'center') {
1.125 sakharuk 813: $post='\end{center}';
814: } elsif ($align eq 'left') {
815: $post='} \hfill'.'\vskip 0 mm ';
816: } elsif ($align eq 'right') {
817: $post='}'.'\vskip 0 mm ';
818: }
819: $currentstring .= '}}'.$post;
1.122 albertel 820: }
821: return $currentstring;
822: }
823:
1.35 sakharuk 824: #-- <h4> tag
1.122 albertel 825: sub start_h4 {
1.125 sakharuk 826: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 827: my $currentstring = &end_p(); # Close off any prior para.
1.325 ! albertel 828: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 829: $currentstring .= $token->[4];
830: } elsif ($target eq 'tex') {
1.125 sakharuk 831: my $pre;
832: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 833: if ($align eq 'center') {
1.125 sakharuk 834: $pre='\begin{center}';
835: } elsif ($align eq 'left') {
836: $pre='\rlap{';
837: } elsif ($align eq 'right') {
838: $pre=' \hfill \llap{';
839: }
840: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
841: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 842: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 843: }
844: return $currentstring;
845: }
846:
847: sub end_h4 {
1.125 sakharuk 848: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 849: my $currentstring = '';
1.325 ! albertel 850: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 851: $currentstring .= $token->[2];
852: } elsif ($target eq 'tex') {
1.212 sakharuk 853: my $post='\vskip 0 mm ';
1.125 sakharuk 854: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 855: if ($align eq 'center') {
1.125 sakharuk 856: $post='\end{center}';
857: } elsif ($align eq 'left') {
858: $post='} \hfill'.'\vskip 0 mm ';
859: } elsif ($align eq 'right') {
860: $post='}'.'\vskip 0 mm ';
861: }
862: $currentstring .= '}}'.$post;
1.122 albertel 863: }
864: return $currentstring;
865: }
866:
1.35 sakharuk 867: #-- <h5> tag
1.122 albertel 868: sub start_h5 {
1.125 sakharuk 869: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 870: my $currentstring = &end_p(); # Close off any prior paras.
1.325 ! albertel 871: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 872: $currentstring .= $token->[4];
873: } elsif ($target eq 'tex') {
1.125 sakharuk 874: my $pre;
875: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 876: if ($align eq 'center') {
1.125 sakharuk 877: $pre='\begin{center}';
878: } elsif ($align eq 'left') {
879: $pre='\rlap{';
880: } elsif ($align eq 'right') {
881: $pre=' \hfill \llap{';
882: }
883: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
884: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 885: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 886: }
887: return $currentstring;
888: }
889:
890: sub end_h5 {
1.125 sakharuk 891: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 892: my $currentstring = '';
1.325 ! albertel 893: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 894: $currentstring .= $token->[2];
895: } elsif ($target eq 'tex') {
1.212 sakharuk 896: my $post='\vskip 0 mm ';
1.125 sakharuk 897: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 898: if ($align eq 'center') {
1.125 sakharuk 899: $post='\end{center}';
900: } elsif ($align eq 'left') {
901: $post='} \hfill'.'\vskip 0 mm ';
902: } elsif ($align eq 'right') {
903: $post='}'.'\vskip 0 mm ';
904: }
905: $currentstring .= '}}'.$post;
1.122 albertel 906: }
907: return $currentstring;
908: }
909:
1.35 sakharuk 910: #-- <h6> tag
1.122 albertel 911: sub start_h6 {
1.125 sakharuk 912: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 913: my $currentstring = &end_p(); # Close off any prior paras.
1.325 ! albertel 914: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 915: $currentstring .= $token->[4];
916: } elsif ($target eq 'tex') {
1.125 sakharuk 917: my $pre;
918: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 919: if ($align eq 'center') {
1.125 sakharuk 920: $pre='\begin{center}';
921: } elsif ($align eq 'left') {
922: $pre='\rlap{';
923: } elsif ($align eq 'right') {
924: $pre=' \hfill \llap{';
925: }
926: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
927: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 928: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 929: }
930: return $currentstring;
931: }
932:
933: sub end_h6 {
1.125 sakharuk 934: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 935: my $currentstring = '';
1.325 ! albertel 936: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 937: $currentstring .= $token->[2];
938: } elsif ($target eq 'tex') {
1.212 sakharuk 939: my $post='\vskip 0 mm ';
1.125 sakharuk 940: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 941: if ($align eq 'center') {
1.125 sakharuk 942: $post='\end{center}';
943: } elsif ($align eq 'left') {
944: $post='} \hfill'.'\vskip 0 mm ';
945: } elsif ($align eq 'right') {
946: $post='}'.'\vskip 0 mm ';
947: }
948: $currentstring .= '}}'.$post;
1.122 albertel 949: }
950: return $currentstring;
951: }
952:
1.181 sakharuk 953: #--- <cite> tag (end tag required)
1.122 albertel 954: sub start_cite {
955: my ($target,$token) = @_;
956: my $currentstring = '';
1.325 ! albertel 957: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 958: $currentstring .= $token->[4];
959: } elsif ($target eq 'tex') {
1.179 sakharuk 960: $currentstring .= '\textit{';
1.144 sakharuk 961: }
1.122 albertel 962: return $currentstring;
963: }
964:
965: sub end_cite {
966: my ($target,$token) = @_;
967: my $currentstring = '';
1.325 ! albertel 968: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 969: $currentstring .= $token->[2];
970: } elsif ($target eq 'tex') {
1.179 sakharuk 971: $currentstring .= '}';
1.144 sakharuk 972: }
1.122 albertel 973: return $currentstring;
974: }
975:
1.181 sakharuk 976: #-- <i> tag (end tag required)
1.122 albertel 977: sub start_i {
978: my ($target,$token) = @_;
979: my $currentstring = '';
1.325 ! albertel 980: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 981: $currentstring .= $token->[4];
982: } elsif ($target eq 'tex') {
983: $currentstring .= '\textit{';
1.144 sakharuk 984: }
1.122 albertel 985: return $currentstring;
986: }
987:
988: sub end_i {
989: my ($target,$token) = @_;
990: my $currentstring = '';
1.325 ! albertel 991: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 992: $currentstring .= $token->[2];
993: } elsif ($target eq 'tex') {
994: $currentstring .= '}';
995: }
996: return $currentstring;
997: }
998:
1.181 sakharuk 999: #-- <address> tag (end tag required)
1.122 albertel 1000: sub start_address {
1001: my ($target,$token) = @_;
1002: my $currentstring = '';
1.325 ! albertel 1003: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1004: $currentstring .= $token->[4];
1005: } elsif ($target eq 'tex') {
1.179 sakharuk 1006: $currentstring .= '\textit{';
1.144 sakharuk 1007: }
1.122 albertel 1008: return $currentstring;
1009: }
1010:
1011: sub end_address {
1012: my ($target,$token) = @_;
1013: my $currentstring = '';
1.325 ! albertel 1014: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1015: $currentstring .= $token->[2];
1016: } elsif ($target eq 'tex') {
1.179 sakharuk 1017: $currentstring .= '}';
1.122 albertel 1018: }
1019: return $currentstring;
1020: }
1021:
1.181 sakharuk 1022: #-- <dfn> tag (end tag required)
1.122 albertel 1023: sub start_dfn {
1024: my ($target,$token) = @_;
1025: my $currentstring = '';
1.325 ! albertel 1026: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1027: $currentstring .= $token->[4];
1028: } elsif ($target eq 'tex') {
1.179 sakharuk 1029: $currentstring .= '\textit{';
1.122 albertel 1030: }
1031: return $currentstring;
1032: }
1033:
1034: sub end_dfn {
1035: my ($target,$token) = @_;
1036: my $currentstring = '';
1.325 ! albertel 1037: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1038: $currentstring .= $token->[2];
1039: } elsif ($target eq 'tex') {
1.179 sakharuk 1040: $currentstring .= '}';
1.144 sakharuk 1041: }
1.122 albertel 1042: return $currentstring;
1043: }
1044:
1.181 sakharuk 1045: #-- <tt> tag (end tag required)
1.122 albertel 1046: sub start_tt {
1047: my ($target,$token) = @_;
1048: my $currentstring = '';
1.325 ! albertel 1049: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1050: $currentstring .= $token->[4];
1051: } elsif ($target eq 'tex') {
1052: $currentstring .= '\texttt{';
1.144 sakharuk 1053: }
1.122 albertel 1054: return $currentstring;
1055: }
1056:
1057: sub end_tt {
1058: my ($target,$token) = @_;
1059: my $currentstring = '';
1.325 ! albertel 1060: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1061: $currentstring .= $token->[2];
1062: } elsif ($target eq 'tex') {
1063: $currentstring .= '}';
1064: }
1065: return $currentstring;
1066: }
1067:
1.181 sakharuk 1068: #-- <kbd> tag (end tag required)
1.122 albertel 1069: sub start_kbd {
1070: my ($target,$token) = @_;
1071: my $currentstring = '';
1.325 ! albertel 1072: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1073: $currentstring .= $token->[4];
1074: } elsif ($target eq 'tex') {
1.179 sakharuk 1075: $currentstring .= '\texttt{';
1.144 sakharuk 1076: }
1.122 albertel 1077: return $currentstring;
1078: }
1079:
1080: sub end_kbd {
1081: my ($target,$token) = @_;
1082: my $currentstring = '';
1.325 ! albertel 1083: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1084: $currentstring .= $token->[2];
1085: } elsif ($target eq 'tex') {
1.179 sakharuk 1086: $currentstring .= '}';
1.144 sakharuk 1087: }
1.122 albertel 1088: return $currentstring;
1089: }
1090:
1.181 sakharuk 1091: #-- <code> tag (end tag required)
1.122 albertel 1092: sub start_code {
1093: my ($target,$token) = @_;
1094: my $currentstring = '';
1.325 ! albertel 1095: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1096: $currentstring .= $token->[4];
1097: } elsif ($target eq 'tex') {
1098: $currentstring .= '\texttt{';
1099: }
1100: return $currentstring;
1101: }
1102:
1103: sub end_code {
1104: my ($target,$token) = @_;
1105: my $currentstring = '';
1.325 ! albertel 1106: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1107: $currentstring .= $token->[2];
1108: } elsif ($target eq 'tex') {
1109: $currentstring .= '}';
1110: }
1111: return $currentstring;
1112: }
1113:
1.181 sakharuk 1114: #-- <em> tag (end tag required)
1.122 albertel 1115: sub start_em {
1116: my ($target,$token) = @_;
1117: my $currentstring = '';
1.325 ! albertel 1118: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1119: $currentstring .= $token->[4];
1120: } elsif ($target eq 'tex') {
1121: $currentstring .= '\emph{';
1.144 sakharuk 1122: }
1.122 albertel 1123: return $currentstring;
1124: }
1125:
1126: sub end_em {
1127: my ($target,$token) = @_;
1128: my $currentstring = '';
1.325 ! albertel 1129: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1130: $currentstring .= $token->[2];
1131: } elsif ($target eq 'tex') {
1132: $currentstring .= '}';
1.144 sakharuk 1133: }
1.122 albertel 1134: return $currentstring;
1135: }
1136:
1.181 sakharuk 1137: #-- <q> tag (end tag required)
1.122 albertel 1138: sub start_q {
1139: my ($target,$token) = @_;
1140: my $currentstring = '';
1.325 ! albertel 1141: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1142: $currentstring .= $token->[4];
1143: } elsif ($target eq 'tex') {
1.179 sakharuk 1144: $currentstring .= '\emph{';
1.122 albertel 1145: }
1146: return $currentstring;
1147: }
1148:
1149: sub end_q {
1150: my ($target,$token) = @_;
1151: my $currentstring = '';
1.325 ! albertel 1152: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1153: $currentstring .= $token->[2];
1154: } elsif ($target eq 'tex') {
1.179 sakharuk 1155: $currentstring .= '}';
1.144 sakharuk 1156: }
1.122 albertel 1157: return $currentstring;
1158: }
1159:
1.277 foxr 1160: # <p> is a bit strange since it does not require a closing </p>
1161: # However in latex, we must often output closing stuff to end
1162: # environments and {}'s etc. Therefore we do all the work
1163: # of figuring out the ending strings in the start tag processing,
1164: # and provide a mechanism to output the stop text external
1165: # to tag processing.
1166: #
1167: {
1168:
1169: my $closing_string = ''; # String required to close <p>
1170:
1.279 foxr 1171: # Some tags are <p> fragile meaning that <p> inside of them
1172: # does not work within TeX mode. This is managed via the
1173: # counter below:
1174: #
1175:
1176: my $para_disabled = 0;
1177:
1178: sub disable_para {
1179: $para_disabled++;
1180: }
1181: sub enable_para {
1182: $para_disabled--;
1183: }
1184:
1185:
1.181 sakharuk 1186: #-- <p> tag (end tag optional)
1.198 sakharuk 1187: #optional attribute - align="center|left|right"
1.122 albertel 1188: sub start_p {
1.157 sakharuk 1189: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1190: my $currentstring = '';
1.325 ! albertel 1191: if ($target eq 'web' || $target eq 'webgrade') {
1.279 foxr 1192: $currentstring .= &end_p(); # close off prior para if in progress.
1.122 albertel 1193: $currentstring .= $token->[4];
1.279 foxr 1194: if (! ($currentstring =~ /\//)) {
1195: $closing_string = '</p>'; # Deal correctly with <p /> e.g.
1196: }
1197: } elsif ($target eq 'tex' && !$para_disabled) {
1.313 foxr 1198:
1.279 foxr 1199: $currentstring .= &end_p(); # close off prior para if in progress.
1.198 sakharuk 1200: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1201: if ($align eq 'center') {
1.277 foxr 1202: $currentstring .='\begin{center}\par';
1203: $closing_string = '\end{center}';
1.309 albertel 1204: if (&is_inside_of($tagstack, "table")) {
1205: $currentstring = ¢er_correction().$currentstring;
1206: }
1.198 sakharuk 1207: } elsif ($align eq 'right') {
1.323 foxr 1208: $currentstring.="\n".'{\flushright ';
1209: # $currentstring.='\makebox['.$env{'form.textwidth'}.']{\hfill\llap{';
1210: $closing_string= "}\n";
1.198 sakharuk 1211: } elsif ($align eq 'left') {
1.323 foxr 1212: $currentstring.= "\n".'{\flushleft ';
1213: # $currentstring.='\noindent\makebox['.$env{'form.textwidth'}.']{{';
1214: $closing_string = "}\n";
1.216 matthew 1215: } else {
1.277 foxr 1216: $currentstring.='\par ';
1.313 foxr 1217: if (&is_inside_of($tagstack, 'table')) {
1.315 foxr 1218: $closing_string = '\vskip 0pt'; # Seems to be consistent with <p> in tables.
1.313 foxr 1219: } else {
1220: $closing_string = '\strut\\\\\strut ';
1221: }
1.216 matthew 1222: }
1.277 foxr 1223:
1.144 sakharuk 1224: }
1.122 albertel 1225: return $currentstring;
1226: }
1.277 foxr 1227: #
1228: # End paragraph processing just requires that we output the
1229: # closing string that was saved and blank it.
1230: sub end_p {
1.279 foxr 1231: # Note only 'tex' mode uses disable_para and enable_para
1232: # so we don't need to know the target in the check below:
1233:
1234: if (!$para_disabled) {
1235: my $current_string = $closing_string;
1236: $closing_string = ''; # Not in a para anymore.
1237: return $current_string;
1238: } else {
1239: return '';
1240: }
1.122 albertel 1241:
1242: }
1.277 foxr 1243: }
1.181 sakharuk 1244: #-- <br> tag (end tag forbidden)
1.122 albertel 1245: sub start_br {
1246: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1247: my $currentstring = '';
1.325 ! albertel 1248: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1249: $currentstring .= $token->[4];
1250: } elsif ($target eq 'tex') {
1.227 sakharuk 1251: my @tempo=@$tagstack;
1.229 sakharuk 1252: my $signal=0;
1.287 foxr 1253: # Not going to factor this to is_inside_of since that would require
1254: # multiple stack traversals.
1255: #
1.227 sakharuk 1256: for (my $i=$#tempo;$i>=0;$i--) {
1257: if (($tempo[$i] eq 'b') || ($tempo[$i] eq 'strong') ||
1.230 sakharuk 1258: ($tempo[$i] eq 'ol') || ($tempo[$i] eq 'ul') ||
1259: ($tempo[$i] eq 'td') || ($tempo[$i] eq 'th')) {
1.229 sakharuk 1260: $signal=1;
1.227 sakharuk 1261: last;
1262: }
1263: }
1.229 sakharuk 1264: if ($signal) {
1.219 sakharuk 1265: $currentstring .= ' \vskip 0 mm ';
1266: } elsif ($$tagstack[-2] ne 'sub' && $$tagstack[-2] ne 'sup') {
1267: $currentstring .= '\strut \\\\ \strut ';
1.1 sakharuk 1268: }
1.144 sakharuk 1269: }
1.122 albertel 1270: return $currentstring;
1271: }
1272:
1273: sub end_br {
1274: my ($target,$token) = @_;
1275: my $currentstring = '';
1.325 ! albertel 1276: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1277: $currentstring .= $token->[2];
1278: }
1279: return $currentstring;
1280: }
1281:
1.181 sakharuk 1282: #-- <big> tag (end tag required)
1.122 albertel 1283: sub start_big {
1284: my ($target,$token) = @_;
1285: my $currentstring = '';
1.325 ! albertel 1286: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1287: $currentstring .= $token->[4];
1288: } elsif ($target eq 'tex') {
1.137 sakharuk 1289: $currentstring .= '{\large ';
1.144 sakharuk 1290: }
1.122 albertel 1291: return $currentstring;
1292: }
1293:
1294: sub end_big {
1295: my ($target,$token) = @_;
1296: my $currentstring = '';
1.325 ! albertel 1297: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1298: $currentstring .= $token->[2];
1299: } elsif ($target eq 'tex') {
1300: $currentstring .= '}';
1301: }
1302: return $currentstring;
1303: }
1304:
1.181 sakharuk 1305: #-- <small> tag (end tag required)
1.122 albertel 1306: sub start_small {
1307: my ($target,$token) = @_;
1308: my $currentstring = '';
1.325 ! albertel 1309: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1310: $currentstring .= $token->[4];
1311: } elsif ($target eq 'tex') {
1312: $currentstring .= '{\footnotesize ';
1.144 sakharuk 1313: }
1.122 albertel 1314: return $currentstring;
1315: }
1316:
1317: sub end_small {
1318: my ($target,$token) = @_;
1319: my $currentstring = '';
1.325 ! albertel 1320: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1321: $currentstring .= $token->[2];
1322: } elsif ($target eq 'tex') {
1323: $currentstring .= '}';
1324: }
1325: return $currentstring;
1326: }
1327:
1.181 sakharuk 1328: #-- <basefont> tag (end tag forbidden)
1.122 albertel 1329: sub start_basefont {
1.126 sakharuk 1330: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.122 albertel 1331: my $currentstring = '';
1.325 ! albertel 1332: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1333: $currentstring = $token->[4];
1.126 sakharuk 1334: } elsif ($target eq 'tex') {
1335: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1336: if (defined $basesize) {
1337: $currentstring = '{\\'.$basesize.' ';
1338: }
1339: }
1.122 albertel 1340: return $currentstring;
1341: }
1342:
1343: sub end_basefont {
1.126 sakharuk 1344: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1345: my $currentstring = '';
1.325 ! albertel 1346: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1347: $currentstring = $token->[4];
1.126 sakharuk 1348: } elsif ($target eq 'tex') {
1349: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1350: if (defined $basesize) {
1351: $currentstring = '}';
1352: }
1353: }
1.122 albertel 1354: return $currentstring;
1355: }
1356:
1.181 sakharuk 1357: #-- <font> tag (end tag required)
1.122 albertel 1358: sub start_font {
1359: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1360: my $currentstring = '';
1.325 ! albertel 1361: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1362: my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
1.204 albertel 1363: if ($face!~/symbol/i) {
1.267 albertel 1364: if (($env{'browser.fontenhance'} eq 'on') ||
1365: ($env{'browser.blackwhite'} eq 'on')) { return ''; }
1.155 www 1366: }
1.122 albertel 1367: $currentstring = $token->[4];
1.126 sakharuk 1368: } elsif ($target eq 'tex') {
1369: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1370: if (defined $fontsize) {
1371: $currentstring = '{\\'.$fontsize.' ';
1372: }
1373: }
1.122 albertel 1374: return $currentstring;
1375: }
1376:
1377: sub end_font {
1378: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1379: my $currentstring = '';
1.325 ! albertel 1380: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1381: $currentstring = $token->[2];
1.126 sakharuk 1382: } elsif ($target eq 'tex') {
1383: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1384: if (defined $fontsize) {
1385: $currentstring = '}';
1386: }
1387: }
1.122 albertel 1388: return $currentstring;
1389: }
1390:
1.181 sakharuk 1391: #-- <strike> tag (end tag required)
1.122 albertel 1392: sub start_strike {
1393: my ($target,$token) = @_;
1394: my $currentstring = '';
1.325 ! albertel 1395: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1396: $currentstring .= $token->[4];
1397: } elsif ($target eq 'tex') {
1398: &Apache::lonxml::startredirection();
1399: }
1400: return $currentstring;
1401: }
1402:
1403: sub end_strike {
1404: my ($target,$token) = @_;
1405: my $currentstring = '';
1.325 ! albertel 1406: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1407: $currentstring .= $token->[2];
1408: } elsif ($target eq 'tex') {
1409: $currentstring=&Apache::lonxml::endredirection();
1410: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1411: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1412: $currentstring=~s/(\S)\s*$/$1\}/;
1413: }
1414: return $currentstring;
1415: }
1416:
1.181 sakharuk 1417: #-- <s> tag (end tag required)
1.122 albertel 1418: sub start_s {
1419: my ($target,$token) = @_;
1420: my $currentstring = '';
1.325 ! albertel 1421: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1422: $currentstring .= $token->[4];
1423: } elsif ($target eq 'tex') {
1424: &Apache::lonxml::startredirection();
1425: }
1426: return $currentstring;
1427: }
1428:
1429: sub end_s {
1430: my ($target,$token) = @_;
1431: my $currentstring = '';
1.325 ! albertel 1432: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1433: $currentstring .= $token->[2];
1434: } elsif ($target eq 'tex') {
1435: $currentstring=&Apache::lonxml::endredirection();
1436: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1437: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1438: $currentstring=~s/(\S)\s*$/$1\}/;
1439: }
1440: return $currentstring;
1441: }
1442:
1.181 sakharuk 1443: #-- <sub> tag (end tag required)
1.122 albertel 1444: sub start_sub {
1445: my ($target,$token) = @_;
1446: my $currentstring = '';
1.325 ! albertel 1447: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1448: $currentstring .= $token->[4];
1449: } elsif ($target eq 'tex') {
1.202 sakharuk 1450: $currentstring .= '\ensuremath{_{';
1.122 albertel 1451: }
1452: return $currentstring;
1453: }
1454:
1455: sub end_sub {
1456: my ($target,$token) = @_;
1457: my $currentstring = '';
1.325 ! albertel 1458: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1459: $currentstring .= $token->[2];
1460: } elsif ($target eq 'tex') {
1.202 sakharuk 1461: $currentstring .= '}}';
1.122 albertel 1462: }
1463: return $currentstring;
1464: }
1465:
1.181 sakharuk 1466: #-- <sup> tag (end tag required)
1.122 albertel 1467: sub start_sup {
1468: my ($target,$token) = @_;
1469: my $currentstring = '';
1.325 ! albertel 1470: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1471: $currentstring .= $token->[4];
1472: } elsif ($target eq 'tex') {
1.202 sakharuk 1473: $currentstring .= '\ensuremath{^{';
1.122 albertel 1474: }
1475: return $currentstring;
1476: }
1477:
1478: sub end_sup {
1479: my ($target,$token) = @_;
1480: my $currentstring = '';
1.325 ! albertel 1481: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1482: $currentstring .= $token->[2];
1483: } elsif ($target eq 'tex') {
1.202 sakharuk 1484: $currentstring .= '}}';
1.122 albertel 1485: }
1486: return $currentstring;
1487: }
1488:
1.181 sakharuk 1489: #-- <hr> tag (end tag forbidden)
1.122 albertel 1490: sub start_hr {
1.124 sakharuk 1491: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1492: my $currentstring = &end_p(); # End enclosing para.
1.325 ! albertel 1493: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1494: $currentstring .= $token->[4];
1495: } elsif ($target eq 'tex') {
1.149 sakharuk 1496: my $LaTeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1.124 sakharuk 1497: if (defined $LaTeXwidth) {
1498: if ($LaTeXwidth=~/^%/) {
1499: substr($LaTeXwidth,0,1)='';
1500: $LaTeXwidth=($LaTeXwidth/100).'\textwidth';
1501: }
1502: } else {
1.148 sakharuk 1503: $LaTeXwidth ='0.9\textwidth';
1.124 sakharuk 1504: }
1505: my ($pre,$post);
1506: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1507: if (($align eq 'center') || (not defined $align)) {
1508: $pre=''; $post='';
1509: } elsif ($align eq 'left') {
1510: $pre='\rlap{'; $post='} \hfill';
1511: } elsif ($align eq 'right') {
1512: $pre=' \hfill \llap{'; $post='}';
1513: }
1.148 sakharuk 1514: $currentstring .= ' \vskip 0 mm \noindent\makebox['.$LaTeXwidth.']{'.$pre.'\makebox['.
1.124 sakharuk 1515: $LaTeXwidth.'][b]{\hrulefill}'.$post.'}\vskip 0 mm ';
1.122 albertel 1516: }
1517: return $currentstring;
1518: }
1519:
1520: sub end_hr {
1521: my ($target,$token) = @_;
1522: my $currentstring = '';
1.325 ! albertel 1523: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1524: $currentstring .= $token->[2];
1.148 sakharuk 1525: }
1.122 albertel 1526: return $currentstring;
1527: }
1528:
1.181 sakharuk 1529: #-- <div> tag (end tag required)
1.280 foxr 1530: {
1531:
1532: # Since div can be nested, the stack below is used
1533: # in 'tex' mode to store the ending strings
1534: # for the div stack.
1535:
1536: my @div_end_stack;
1537:
1.122 albertel 1538: sub start_div {
1.280 foxr 1539: my ($target,$token, $tagstack, $parstack, $parser, $safeeval) = @_;
1.279 foxr 1540: my $currentstring = &end_p(); # Close enclosing para.
1.325 ! albertel 1541: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1542: $currentstring .= $token->[4];
1543: }
1.280 foxr 1544: if ($target eq 'tex') {
1545: # 4 possible alignments: left, right, center, and -missing-.
1546:
1547: my $endstring = '';
1548:
1549: my $align = lc(&Apache::lonxml::get_param('align', $parstack,
1550: $safeeval, undef, 1));
1551: if ($align eq 'center') {
1552: $currentstring .= '\begin{center}';
1553: $endstring = '\end{center}';
1.309 albertel 1554: if (&is_inside_of($tagstack, "table")) {
1555: $currentstring = ¢er_correction().$currentstring;
1556: }
1.280 foxr 1557: }
1558: elsif ($align eq 'right') {
1559: $currentstring .= '\begin{flushright}';
1560: $endstring .= '\end{flushright}';
1561: } elsif ($align eq 'left') {
1562: $currentstring .= '\begin{flushleft}';
1563: $endstring = '\end{flushleft}';
1564: } else {
1565:
1566: }
1567: $currentstring .= "\n"; # For human readability.
1568: $endstring = "\n$endstring\n"; # For human readability
1569: push(@div_end_stack, $endstring);
1570: }
1.122 albertel 1571: return $currentstring;
1572: }
1573:
1574: sub end_div {
1575: my ($target,$token) = @_;
1576: my $currentstring = '';
1.325 ! albertel 1577: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1578: $currentstring .= $token->[2];
1.280 foxr 1579: }
1580: if ($target eq 'tex') {
1581: my $endstring = pop @div_end_stack;
1582: $currentstring .= $endstring;
1583: }
1.122 albertel 1584: return $currentstring;
1585: }
1.280 foxr 1586: }
1.122 albertel 1587:
1.181 sakharuk 1588: #-- <a> tag (end tag required)
1.122 albertel 1589: sub start_a {
1.149 sakharuk 1590: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1591: my $currentstring = '';
1.325 ! albertel 1592: if ($target eq 'web' || $target eq 'webgrade') {
1.250 albertel 1593: my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
1594: undef,1);
1595: $currentstring=&Apache::lonenc::encrypt_ref($token,{'href'=>$href});
1.122 albertel 1596: } elsif ($target eq 'tex') {
1.149 sakharuk 1597: my $a=&Apache::lonxml::get_param('href',$parstack,$safeeval,undef,1);
1.161 sakharuk 1598: my $b=&Apache::lonxml::get_param('name',$parstack,$safeeval,undef,1);
1599: if ($a=~/\S/) {
1600: $a=~s/([^\\])%/$1\\\%/g;
1601: $currentstring .= '\ref{URI: '.$a.'}';
1602: } elsif ($b=~/\S/) {
1603: $currentstring .= '\ref{Anchor: '.$b.'}';
1604: } else {
1605: $currentstring.='';
1606: }
1.122 albertel 1607: }
1608: return $currentstring;
1609: }
1610:
1611: sub end_a {
1.168 albertel 1612: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1613: my $currentstring = '';
1.325 ! albertel 1614: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1615: $currentstring .= $token->[2];
1616: }
1617: return $currentstring;
1618: }
1619:
1.181 sakharuk 1620: #-- <li> tag (end tag optional)
1.122 albertel 1621: sub start_li {
1.168 albertel 1622: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1623: my $currentstring = '';
1.325 ! albertel 1624: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1625: $currentstring = $token->[4];
1626: } elsif ($target eq 'tex') {
1.237 sakharuk 1627: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1628: my $value=&Apache::lonxml::get_param('value',$parstack,$safeeval,undef,0);
1.238 albertel 1629: #FIXME need to support types i and I
1630: if ($type=~/disc/) {
1631: $currentstring .= ' \item[$\bullet$] ';
1632: } elsif ($type=~/circle/) {
1633: $currentstring .= ' \item[$\circ$] ';
1.146 sakharuk 1634: } elsif ($type=~/square/) {
1.238 albertel 1635: $currentstring .= ' \item[$\diamond$] ';
1636: } elsif ($type eq '1') {
1637: $currentstring .= ' \item['.($Apache::londefdef::list_index+1).'.]';
1.237 sakharuk 1638: } elsif ($type eq 'A') {
1.238 albertel 1639: $currentstring .= ' \item['.('A'..'Z')[$Apache::londefdef::list_index].'.]';
1.237 sakharuk 1640: } elsif ($type eq 'a') {
1.238 albertel 1641: $currentstring .= ' \item['.('a'..'z')[$Apache::londefdef::list_index].'.]';
1.237 sakharuk 1642: } elsif ($value ne '') {
1643: $currentstring .= ' \item['.$value.'] ';
1.122 albertel 1644: } else {
1.146 sakharuk 1645: $currentstring .= ' \item ';
1.122 albertel 1646: }
1.238 albertel 1647: $Apache::londefdef::list_index++;
1648: }
1.122 albertel 1649: return $currentstring;
1650: }
1651:
1652: sub end_li {
1653: my ($target,$token) = @_;
1.279 foxr 1654: my $currentstring = &end_p(); # In case there's a <p> in the <li>
1.325 ! albertel 1655: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1656: $currentstring .= $token->[2];
1.122 albertel 1657: }
1658: return $currentstring;
1659: }
1660:
1.181 sakharuk 1661: #-- <u> tag (end tag required)
1.122 albertel 1662: sub start_u {
1663: my ($target,$token) = @_;
1664: my $currentstring = '';
1.325 ! albertel 1665: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1666: $currentstring .= $token->[4];
1667: } elsif ($target eq 'tex') {
1668: &Apache::lonxml::startredirection();
1669: }
1670: return $currentstring;
1671: }
1672:
1673: sub end_u {
1674: my ($target,$token) = @_;
1675: my $currentstring = '';
1.325 ! albertel 1676: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1677: $currentstring .= $token->[2];
1678: } elsif ($target eq 'tex') {
1679: $currentstring=&Apache::lonxml::endredirection();
1680: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1681: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1682: $currentstring=~s/(\S)\s*$/$1\}/;
1683: }
1684: return $currentstring;
1685: }
1686:
1.181 sakharuk 1687: #-- <ul> tag (end tag required)
1.122 albertel 1688: sub start_ul {
1.125 sakharuk 1689: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1690: my $currentstring = &end_p(); # Close off enclosing list.
1.325 ! albertel 1691: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1692: $currentstring .= $token->[4];
1.122 albertel 1693: } elsif ($target eq 'tex') {
1.125 sakharuk 1694: my $TeXtype=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1.238 albertel 1695: $Apache::londefdef::list_index=0;
1.125 sakharuk 1696: if ($TeXtype eq 'disc') {
1.222 sakharuk 1697: $currentstring .= '\renewcommand{\labelitemi}{$\bullet$}'.
1698: '\renewcommand{\labelitemii}{$\bullet$}'.
1699: '\renewcommand{\labelitemiii}{$\bullet$}'.
1700: '\renewcommand{\labelitemiv}{$\bullet$}';
1.125 sakharuk 1701: } elsif ($TeXtype eq 'circle') {
1.222 sakharuk 1702: $currentstring .= '\renewcommand{\labelitemi}{$\circ$}'.
1703: '\renewcommand{\labelitemii}{$\circ$}'.
1704: '\renewcommand{\labelitemiii}{$\circ$}'.
1705: '\renewcommand{\labelitemiv}{$\circ$}';
1.125 sakharuk 1706: } elsif ($TeXtype eq 'square') {
1.222 sakharuk 1707: $currentstring .= '\renewcommand{\labelitemi}{$\diamond$}'.
1708: '\renewcommand{\labelitemii}{$\diamond$}'.
1709: '\renewcommand{\labelitemiii}{$\diamond$}'.
1710: '\renewcommand{\labelitemiv}{$\diamond$}';
1.125 sakharuk 1711: }
1.222 sakharuk 1712: $currentstring .= '\strut \begin{itemize}';
1.122 albertel 1713: }
1714: return $currentstring;
1715: }
1716:
1717: sub end_ul {
1718: my ($target,$token) = @_;
1719: my $currentstring = '';
1.325 ! albertel 1720: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1721: $currentstring = $token->[2];
1722: } elsif ($target eq 'tex') {
1.222 sakharuk 1723: $currentstring = '\end{itemize} \renewcommand{\labelitemi}{$\bullet$}'.
1724: '\renewcommand{\labelitemii}{$\bullet$}'.
1725: '\renewcommand{\labelitemiii}{$\bullet$}'.
1726: '\renewcommand{\labelitemiv}{$\bullet$}\strut ';
1.122 albertel 1727: }
1728: return $currentstring;
1729: }
1730:
1.181 sakharuk 1731: #-- <menu> tag (end tag required)
1.122 albertel 1732: sub start_menu {
1733: my ($target,$token) = @_;
1734: my $currentstring = '';
1.325 ! albertel 1735: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1736: $currentstring = $token->[4];
1737: } elsif ($target eq 'tex') {
1738: $currentstring = " \\begin{itemize} ";
1739: }
1740: return $currentstring;
1741: }
1742:
1743: sub end_menu {
1744: my ($target,$token) = @_;
1745: my $currentstring = '';
1.325 ! albertel 1746: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1747: $currentstring = $token->[2];
1748: } elsif ($target eq 'tex') {
1749: $currentstring = " \\end{itemize}";
1750: }
1751: return $currentstring;
1752: }
1753:
1.181 sakharuk 1754: #-- <dir> tag (end tag required)
1.122 albertel 1755: sub start_dir {
1756: my ($target,$token) = @_;
1.279 foxr 1757: my $currentstring = &end_p(); # In case there's a <p> prior to the list.
1.325 ! albertel 1758: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1759: $currentstring .= $token->[4];
1.122 albertel 1760: } elsif ($target eq 'tex') {
1.277 foxr 1761: $currentstring .= " \\begin{itemize} ";
1.122 albertel 1762: }
1763: return $currentstring;
1764: }
1765:
1766: sub end_dir {
1767: my ($target,$token) = @_;
1768: my $currentstring = '';
1.325 ! albertel 1769: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1770: $currentstring = $token->[2];
1771: } elsif ($target eq 'tex') {
1772: $currentstring = " \\end{itemize}";
1773: }
1774: return $currentstring;
1775: }
1776:
1.181 sakharuk 1777: #-- <ol> tag (end tag required)
1.122 albertel 1778: sub start_ol {
1.125 sakharuk 1779: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1780: my $currentstring = &end_p(); # In case there's a <p> prior to the list.
1.325 ! albertel 1781: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1782: $currentstring .= $token->[4];
1.122 albertel 1783: } elsif ($target eq 'tex') {
1.238 albertel 1784: $Apache::londefdef::list_index=0;
1.125 sakharuk 1785: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1786: if ($type eq '1') {
1.222 sakharuk 1787: $currentstring .= '\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1788: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1789: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1790: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}';
1.125 sakharuk 1791: } elsif ($type eq 'A') {
1.222 sakharuk 1792: $currentstring .= '\renewcommand{\labelenumi}{\Alph{enumi}.}'.
1793: '\renewcommand{\labelenumii}{\Alph{enumii}.}'.
1794: '\renewcommand{\labelenumiii}{\Alph{enumiii}.}'.
1795: '\renewcommand{\labelenumiv}{\Alph{enumiv}.}';
1.125 sakharuk 1796: } elsif ($type eq 'a') {
1.222 sakharuk 1797: $currentstring .= '\renewcommand{\labelenumi}{\alph{enumi}.}'.
1798: '\renewcommand{\labelenumii}{\alph{enumii}.}'.
1799: '\renewcommand{\labelenumiii}{\alph{enumiii}.}'.
1800: '\renewcommand{\labelenumiv}{\alph{enumiv}.}';
1.125 sakharuk 1801: } elsif ($type eq 'i') {
1.222 sakharuk 1802: $currentstring .= '\renewcommand{\labelenumi}{\roman{enumi}.}'.
1803: '\renewcommand{\labelenumii}{\roman{enumii}.}'.
1804: '\renewcommand{\labelenumiii}{\roman{enumiii}.}'.
1805: '\renewcommand{\labelenumiv}{\roman{enumiv}.}';
1.125 sakharuk 1806: } elsif ($type eq 'I') {
1.222 sakharuk 1807: $currentstring .= '\renewcommand{\labelenumi}{\Roman{enumi}.}'.
1808: '\renewcommand{\labelenumii}{\Roman{enumii}.}'.
1809: '\renewcommand{\labelenumiii}{\Roman{enumiii}.}'.
1810: '\renewcommand{\labelenumiv}{\Roman{enumiv}.}';
1.125 sakharuk 1811: }
1.222 sakharuk 1812: $currentstring .= '\strut \begin{enumerate}';
1.122 albertel 1813: }
1814: return $currentstring;
1815: }
1816:
1817: sub end_ol {
1818: my ($target,$token) = @_;
1819: my $currentstring = '';
1.325 ! albertel 1820: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1821: $currentstring = $token->[2];
1822: } elsif ($target eq 'tex') {
1.222 sakharuk 1823: $currentstring = '\end{enumerate}\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1824: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1825: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1826: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}\strut ';
1.122 albertel 1827: }
1828: return $currentstring;
1829: }
1830:
1.181 sakharuk 1831: #-- <dl> tag (end tag required)
1.122 albertel 1832: sub start_dl {
1833: my ($target,$token) = @_;
1.279 foxr 1834: my $currentstring = &end_p(); # In case there's a <p> unclosed prior to the list.
1.325 ! albertel 1835: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1836: $currentstring .= $token->[4];
1.122 albertel 1837: } elsif ($target eq 'tex') {
1.277 foxr 1838: $currentstring .= '\begin{description}';
1.243 albertel 1839: $Apache::londefdef::DL++;
1840: push(@Apache::londefdef::description,[]);
1841: $Apache::londefdef::DD[$Apache::londefdef::DL]=0;
1842: $Apache::londefdef::DT[$Apache::londefdef::DL]=0;
1.244 albertel 1843: $Apache::londefdef::seenDT[$Apache::londefdef::DL]=0;
1.122 albertel 1844: }
1845: return $currentstring;
1846: }
1847:
1848: sub end_dl {
1.174 sakharuk 1849: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1850: my $currentstring = '';
1.325 ! albertel 1851: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1852: $currentstring = $token->[2];
1853: } elsif ($target eq 'tex') {
1.243 albertel 1854: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1855: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
1856: foreach my $element (@{$Apache::londefdef::description[-1]}) {
1.174 sakharuk 1857: $currentstring.=' '.$element.' ';
1858: }
1.243 albertel 1859: pop(@Apache::londefdef::description);
1.174 sakharuk 1860: $currentstring.='\end{description}';
1.243 albertel 1861: delete($Apache::londefdef::DD[$Apache::londefdef::DL]);
1862: delete($Apache::londefdef::DT[$Apache::londefdef::DL]);
1.244 albertel 1863: delete($Apache::londefdef::seenDT[$Apache::londefdef::DL]);
1.243 albertel 1864: $Apache::londefdef::DL--;
1.122 albertel 1865: }
1866: return $currentstring;
1867: }
1868:
1.172 sakharuk 1869: #-- <dt> tag (end tag optional)
1.122 albertel 1870: sub start_dt {
1.172 sakharuk 1871: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1872: my $currentstring='';
1.325 ! albertel 1873: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1874: $currentstring = $token->[4];
1875: } elsif ($target eq 'tex') {
1.243 albertel 1876: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1877: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
1.174 sakharuk 1878: &Apache::lonxml::startredirection();
1.243 albertel 1879: $Apache::londefdef::DT[-1]++;
1.244 albertel 1880: $Apache::londefdef::seenDT[-1]=1;
1.122 albertel 1881: }
1882: return $currentstring;
1883: }
1884:
1885: sub end_dt {
1.172 sakharuk 1886: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1887: my $currentstring = '';
1.325 ! albertel 1888: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1889: $currentstring = $token->[2];
1890: } elsif ($target eq 'tex') {
1.243 albertel 1891: if ($Apache::londefdef::DT[-1]) {
1892: my $data=&item_cleanup();
1.244 albertel 1893: push(@{$Apache::londefdef::description[-1]},'\item['.$data.'] \strut \vskip 0mm');
1.243 albertel 1894: $Apache::londefdef::DT[-1]--;
1895: }
1.122 albertel 1896: }
1897: return $currentstring;
1898: }
1899:
1.173 sakharuk 1900: sub item_cleanup {
1.174 sakharuk 1901: my $item=&Apache::lonxml::endredirection();
1.173 sakharuk 1902: $item=~s/\\begin{center}//g;
1903: $item=~s/\\end{center}//g;
1904: return $item;
1905: }
1906:
1.181 sakharuk 1907: #-- <dd> tag (end tag optional)
1.122 albertel 1908: sub start_dd {
1.147 sakharuk 1909: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1910: my $currentstring = '';
1.325 ! albertel 1911: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1912: $currentstring = $token->[4];
1.147 sakharuk 1913: } elsif ($target eq 'tex') {
1.243 albertel 1914: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1915: if ($Apache::londefdef::DD[-1]) { &end_dd(@_);}
1.244 albertel 1916: if (!$Apache::londefdef::seenDT[-1]) {
1917: push(@{$Apache::londefdef::description[-1]},'\item[\strut] \strut \vskip 0mm ');
1918: }
1.243 albertel 1919: push(@{$Apache::londefdef::description[-1]},'');
1920: $Apache::londefdef::description[-1]->[-1].=' \strut ';
1921: $Apache::londefdef::DD[-1]++;
1.174 sakharuk 1922: &Apache::lonxml::startredirection();
1.122 albertel 1923: }
1924: return $currentstring;
1925: }
1926:
1927: sub end_dd {
1.174 sakharuk 1928: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1929: my $currentstring = '';
1.325 ! albertel 1930: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1931: $currentstring = $token->[2];
1.174 sakharuk 1932: } elsif ($target eq 'tex') {
1.243 albertel 1933: $Apache::londefdef::description[-1]->[-1].=
1934: &Apache::lonxml::endredirection().' \vskip 0mm ';
1935: $Apache::londefdef::DD[-1]--;
1.174 sakharuk 1936: }
1.122 albertel 1937: return $currentstring;
1938: }
1939:
1.181 sakharuk 1940: #-- <table> tag (end tag required)
1.277 foxr 1941: # <table> also ends any prior <p> that is not closed.
1942: # but, unless I allow <p>'s to nest, that's the
1943: # only way I could think of to allow <p> in
1944: # <tr> <th> bodies
1945: #
1.206 sakharuk 1946: #list of supported attributes: border,width,TeXwidth
1.91 sakharuk 1947: sub start_table {
1948: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 foxr 1949: my $textwidth = '';
1.279 foxr 1950: my $currentstring = &end_p();
1.325 ! albertel 1951: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1952: $currentstring .= $token->[4];
1.91 sakharuk 1953: } elsif ($target eq 'tex') {
1954: my $aa = {};
1955: push @Apache::londefdef::table, $aa;
1956: $Apache::londefdef::table[-1]{'row_number'} = -1;
1.222 sakharuk 1957: #maximum table's width (default coincides with text line length)
1.206 sakharuk 1958: if ($#Apache::londefdef::table==0) {
1.267 albertel 1959: $textwidth=&recalc($env{'form.textwidth'}); #result is always in mm
1.206 sakharuk 1960: $textwidth=~/(\d+\.?\d*)/;
1961: $textwidth=0.95*$1; #accounts "internal" LaTeX space for table frame
1962: } else {
1963: if ($Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}]=~/\d/) {
1964: #the maximum width of nested table is determined by LATeX width of parent cell
1965: $textwidth=$Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}];
1966: } else {
1967: #try to use all space not used before (minus 5% for LaTeX table internal) - rather silly
1.228 sakharuk 1968: $textwidth=$Apache::londefdef::table[-2]{'width'};
1.206 sakharuk 1969: for (my $i=0;$i<$Apache::londefdef::table[-2]{'counter_columns'};$i++) {
1970: $textwidth=$textwidth-$Apache::londefdef::table[-2]{'TeXlen'}[0][$i];
1971: }
1972: }
1973: }
1.294 foxr 1974:
1975: # width either comes forced from the TeXwidth or the width parameters.
1976: # in either case it can be a percentage or absolute width.
1.311 albertel 1977: # in the width case we ignore absolute width
1.126 sakharuk 1978: my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1.308 albertel 1979: if (!defined($TeXwidth)) {
1.311 albertel 1980: my $htmlwidth = &Apache::lonxml::get_param('width',$parstack,
1981: $safeeval,undef,1);
1982: if ($htmlwidth =~ /%/) {
1983: $TeXwidth = $htmlwidth;
1984: } else {
1985: $TeXwidth = $textwidth;
1986: }
1.294 foxr 1987: } else {
1988: $Apache::londefdef::table[-1]{'forcedtablewidth'} = 1;
1989: }
1990: if ($TeXwidth=~/%/) {
1.203 sakharuk 1991: $Apache::londefdef::table[-1]{'percent'}=1;
1.126 sakharuk 1992: $TeXwidth=~/(\d+)/;
1.206 sakharuk 1993: $Apache::londefdef::table[-1]{'width'}=$1*$textwidth/100;
1.126 sakharuk 1994: } else {
1.206 sakharuk 1995: $Apache::londefdef::table[-1]{'width'}=$TeXwidth;
1.316 foxr 1996: }
1997: # In the end, however the table width cannot be wider than $textwidth...
1998:
1999: if ($Apache::londefdef::table[-1]{'width'} > $textwidth) {
2000: $Apache::londefdef::table[-1]{'width'} = $textwidth;
2001: }
1.294 foxr 2002:
1.126 sakharuk 2003: #table's border
1.206 sakharuk 2004: my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval);
1.208 sakharuk 2005: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
1.91 sakharuk 2006: unless (defined $border) { $border = 0; }
2007: if ($border) {
2008: $Apache::londefdef::table[-1]{'hinc'} = '\hline ';
2009: $Apache::londefdef::table[-1]{'vinc'} = '&';
2010: $Apache::londefdef::table[-1]{'vvinc'} = '|';
2011: } else {
2012: $Apache::londefdef::table[-1]{'hinc'} = '';
2013: $Apache::londefdef::table[-1]{'vinc'} = '&';
2014: $Apache::londefdef::table[-1]{'vvinc'} = '';
2015: }
1.206 sakharuk 2016: if ($#Apache::londefdef::table==0) {
1.281 foxr 2017: # Note that \newline seems to destroy the alignment envs.
2018: # $Apache::londefdef::table[-1]{'output'}='\strut\newline\strut\setlength{\tabcolsep}{1 mm}';
2019: $Apache::londefdef::table[-1]{'output'}='\strut'.'\\\\'."\n".'\strut\setlength{\tabcolsep}{1 mm}';
1.206 sakharuk 2020: }
2021: $Apache::londefdef::table[-1]{'output'}.=' \noindent \begin{tabular} ';
2022: $Apache::londefdef::table[-1]{'TeXlen'}=[];
2023: $Apache::londefdef::table[-1]{'objectlen'}=[];
1.229 sakharuk 2024: $Apache::londefdef::table[-1]{'objectsignal'}=[];
1.206 sakharuk 2025: $Apache::londefdef::table[-1]{'maxlen'}=[];
2026: $Apache::londefdef::table[-1]{'minlen'}=[];
2027: $Apache::londefdef::table[-1]{'content'}=[];
2028: $Apache::londefdef::table[-1]{'align'}=[];
1.277 foxr 2029: $currentstring.='\keephidden{NEW TABLE ENTRY}';
1.295 foxr 2030:
1.294 foxr 2031:
2032: }
1.91 sakharuk 2033: return $currentstring;
2034: }
1.122 albertel 2035:
2036: sub end_table {
2037: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2038: my $currentstring = '';
1.325 ! albertel 2039: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2040: $currentstring = $token->[2];
2041: } elsif ($target eq 'tex') {
2042: my $inmemory = '';
2043: my $output = '';
1.206 sakharuk 2044: my $WARNING='';
2045: #width of columns from TeXwidth attributes
1.294 foxr 2046:
1.206 sakharuk 2047: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2048: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2049: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]<$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn]) {
2050: $Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]=$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn];
2051: }
2052: }
2053: }
2054: #free space and number of empty columns
2055: my ($available_space,$empty_columns)=($Apache::londefdef::table[-1]{'width'},0);
1.228 sakharuk 2056: if ($#Apache::londefdef::table ne 0) {$available_space=0.9*$available_space;}
1.206 sakharuk 2057: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2058: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]==0) {
2059: $empty_columns++;
2060: } else {
2061: $available_space=$available_space-$Apache::londefdef::table[-1]{'TeXlen'}[0][$jn];
2062: }
2063: }
2064: #boundaries for contents columns
2065: my @min_len=();#columns can not be narrower
2066: my @max_len=();#maximum length of column
2067: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2068: my ($localmin,$localmax)=(0,0);
2069: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2070: if ($localmin<$Apache::londefdef::table[-1]{'minlen'}[$in][$jn]) {
2071: $localmin=$Apache::londefdef::table[-1]{'minlen'}[$in][$jn];
2072: }
2073: if ($localmax<$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn]) {
2074: $localmax=$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn];
2075: }
2076: }
2077: push @min_len, $localmin;
2078: push @max_len, $localmax;
1.122 albertel 2079: }
1.206 sakharuk 2080: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2081: my $localmin=0,;
2082: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2083: if ($localmin<$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn]) {
2084: $localmin=$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn];
2085: }
2086: }
1.229 sakharuk 2087: if ($max_len[$jn]<$localmin) {
2088: $max_len[$jn]=$localmin;
2089: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
2090: }#object size is bigger
2091: if ($min_len[$jn]<$localmin) {
2092: $min_len[$jn]=$localmin;
2093: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
2094: }#object size is bigger
1.206 sakharuk 2095: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]!=0) {
2096: $min_len[$jn]=0;
2097: $max_len[$jn]=0;
2098: }
2099: }
2100: #final adjustment of column width
2101: my @fwidth=@{$Apache::londefdef::table[-1]{'TeXlen'}[0]};#final width array
2102: my @adjust=();
2103: #step 1. adjustment by maximum value
2104: my $space_neeeded=0;
2105: for (my $jn=0;$jn<=$#max_len;$jn++) {
2106: $space_neeeded=$space_neeeded+$max_len[$jn];
2107: }
2108: if ($space_neeeded<=$available_space) {
2109: for (my $jn=0;$jn<=$#max_len;$jn++) {
2110: if ($fwidth[$jn]==0) {
2111: $fwidth[$jn]=$max_len[$jn];
1.53 sakharuk 2112: }
1.51 sakharuk 2113: }
1.206 sakharuk 2114: } else {
2115: #step 2. adjustment by minimum value (estimation)
2116: $space_neeeded=0;
2117: for (my $jn=0;$jn<=$#min_len;$jn++) {
2118: $space_neeeded+=$min_len[$jn];
2119: }
2120: if ($space_neeeded>$available_space) {
2121: $WARNING=' \textbf{NOT ENOUGH SPACE FOR TABLE} ';
2122: for (my $jn=0;$jn<=$#max_len;$jn++) {
2123: if ($fwidth[$jn]==0) {
2124: $fwidth[$jn]=$min_len[$jn];
2125: }
2126: }
1.229 sakharuk 2127: #check if we have objects which can be scaled
2128: my $how_many_to_scale=0;
2129: my @to_scale=();
2130: for (my $jn=0;$jn<=$#max_len;$jn++) {
2131: if ($Apache::londefdef::table[-1]{'objectsignal'}[$jn] eq '1') {
2132: $how_many_to_scale++;
2133: push @to_scale, $jn;
2134: }
2135: }
2136: if ($how_many_to_scale>0) {
2137: my $space_to_adjust=($space_neeeded-$available_space)/$how_many_to_scale;
2138: foreach my $jn (@to_scale) {
2139: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2140: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/;
2141: if ($1 ne '') {
2142: my $current_length=&recalc($1);
2143: $current_length=~/(\d+\.?\d*)/;
2144: $current_length=$current_length-$space_to_adjust;
2145: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/width=$current_length mm/;
2146: }
2147: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/\[(\d+\.?\d*)\s*mm\]/;
2148: if ($1 ne '') {
2149: my $current_length=$1;
2150: $current_length=$current_length-$space_to_adjust;
2151: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/\[(\d+\.?\d*)\s*mm\]/\[$current_length mm\]/;
2152: }
2153: }
2154: $fwidth[$jn]=$fwidth[$jn]-$space_to_adjust;
2155: }
2156: }
1.206 sakharuk 2157: } else {
2158: #step 3. adjustment over minimal + corrections
2159: my $enlarge_coef=$available_space/$space_neeeded;
2160: my $acsessive=0;
2161: for (my $jn=0;$jn<=$#min_len;$jn++) {
2162: $adjust[$jn]=$min_len[$jn]*$enlarge_coef;
2163: if ($adjust[$jn]>$max_len[$jn]) {
2164: $fwidth[$jn]=$max_len[$jn];
2165: $acsessive=$acsessive+$adjust[$jn]-$max_len[$jn];
2166: $adjust[$jn]=0;
2167: }
2168: }
2169: if ($acsessive>0) {
2170: #we have an excess of space and can redistribute it
2171: my $notempty_columns=0;
2172: for (my $jn=0;$jn<=$#min_len;$jn++) {
2173: if ($adjust[$jn]!=0) {
2174: $notempty_columns++;
2175: }
2176: }
2177: my $per_column=$acsessive/$notempty_columns;
2178: for (my $jn=0;$jn<=$#min_len;$jn++) {
2179: if ($adjust[$jn]!=0) {
2180: $adjust[$jn]+=$per_column;
2181: $fwidth[$jn]=$adjust[$jn];
2182: }
1.223 sakharuk 2183: }
2184: } else {
2185: for (my $jn=0;$jn<=$#min_len;$jn++) {
2186: $fwidth[$jn]=$adjust[$jn];
1.206 sakharuk 2187: }
2188: }
1.203 sakharuk 2189: }
2190: }
1.222 sakharuk 2191: #use all available width if it is defined in % or as TeXwidth
2192: if (($Apache::londefdef::table[-1]{'percent'}==1) || ($Apache::londefdef::table[-1]{'forcetablewidth'}==1)) {
1.203 sakharuk 2193: my $current=0;
1.206 sakharuk 2194: for (my $i=0;$i<=$#fwidth;$i++) {
2195: $current+=$fwidth[$i];
1.203 sakharuk 2196: }
2197: my $coef=$Apache::londefdef::table[-1]{'width'}/$current;
1.206 sakharuk 2198: for (my $i=0;$i<=$#fwidth;$i++) {
2199: $fwidth[$i]*=$coef;
2200: }
2201: }
2202: #removing of empty columns if allowed
1.208 sakharuk 2203: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
1.206 sakharuk 2204: if ($permission eq 'yes') {
2205: my @cleaned_table=();
2206: my @cleaned_header=();
2207: my $colind=0;
2208: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2209: if ($fwidth[$jn]!=0) {
2210: #we need to copy column
2211: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2212: $cleaned_table[$in][$colind]=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
2213: $cleaned_header[$colind]=$fwidth[$jn];
2214: }
2215: $colind++;
2216: }
1.122 albertel 2217: }
1.206 sakharuk 2218: $Apache::londefdef::table[-1]{'content'}=\@cleaned_table;
2219: @fwidth=@cleaned_header;
1.122 albertel 2220: }
1.206 sakharuk 2221: #construct header of the table
2222: my $header_of_table = '{'.$Apache::londefdef::table[-1]{'vvinc'};
2223: for (my $in=0;$in<=$#fwidth;$in++) {
2224: $header_of_table.='p{'.$fwidth[$in].' mm}'.$Apache::londefdef::table[-1]{'vvinc'};
2225: }
2226: $header_of_table .= '}';
1.126 sakharuk 2227: #fill the table
2228: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1.306 foxr 2229: my $have_rowspan = 0;
1.206 sakharuk 2230: for (my $jn=0;$jn<=$#fwidth;$jn++) {
1.320 foxr 2231:
2232: #-----------------------------------------------------------
2233: # I think this order of doing things will ensure that
2234: # single rowspan, columspan and combined row/colspans will
2235: # work correctly. LaTeX is delicate here.
2236: # RF.
2237:
2238: # Start a rowspan if necessary:
2239:
2240: my $rowspan = $Apache::londefdef::table[-1]{'rowspan'}[$in][$jn];
2241: my $colspan = $Apache::londefdef::table[-1]{'colspan'}[$in][$jn];
1.304 foxr 2242: #
2243: # Do the appropriate magic if this has a colspan
2244: #
1.320 foxr 2245:
1.304 foxr 2246: if ($colspan > 1) {
2247: $output .= '\multicolumn{'.
2248: $colspan
2249: .'}{|l|}{';
2250: }
1.306 foxr 2251:
2252: if ($rowspan > 1) {
2253: $have_rowspan++;
2254: $output .= '\multirow{'.$rowspan.'}[0]{'.$fwidth[$jn].'mm}{';
2255: }
2256: if (($rowspan eq '^') || ($rowspan eq '_')) {
2257: $have_rowspan++;
2258: }
1.320 foxr 2259: #--------------------------------------------------------------
1.306 foxr 2260:
1.206 sakharuk 2261: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
1.309 albertel 2262: $output.=¢er_correction().'\begin{center}';
1.206 sakharuk 2263: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
2264: $output.=' \hfill \llap{'
2265: }
2266: $output.=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
2267: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
1.314 albertel 2268: $output.='\end{center}';
1.206 sakharuk 2269: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
2270: $output.='} ';
2271: }
1.306 foxr 2272: # Close off any open multirow:
2273:
2274: if ($rowspan > 1) {
2275: $output .= '}';
2276: }
1.304 foxr 2277: # Close off the colspan...
2278: #
2279: if ($colspan > 1) {
2280: $output .= '}';
2281: $jn += $colspan-1; # Adjust for number of rows really left.
2282: }
1.206 sakharuk 2283: if ($jn!=$#fwidth) {$output.=' '.$Apache::londefdef::table[-1]{'vinc'};}
2284: }
1.306 foxr 2285: # If have_rowspan > 0, and borders are on, then
2286: # we need to do more than put an \hline at the bottom of row.
2287: # we need to do the appropriate \cline to ensure that
2288: # the spanned rows don't have \hlines through them.
2289:
2290: if (($Apache::londefdef::table[-1]{'hinc'} =~ /\\hline/) && $have_rowspan) {
2291: $output .= ' \\\\ ';
2292: for (my $jn=0; $jn<=$#fwidth;$jn++) {
2293: my $rowspan = $Apache::londefdef::table[-1]{'rowspan'}[$in][$jn];
1.320 foxr 2294: if ($rowspan ne "^") {
2295: if (($rowspan <= 1) || ($rowspan eq '_')) {
2296: my $column = $jn+1;
2297: $output .= '\cline{'.$column.'-'.$column.'} ';
2298: }
1.306 foxr 2299: }
2300: }
2301:
2302: } else {
2303: $output.=' \\\\ '.$Apache::londefdef::table[-1]{'hinc'}.' ';
2304: }
1.122 albertel 2305: }
1.281 foxr 2306: # Note that \newline destroys alignment env's produced by e.g. <div>
2307: # $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut\newline\strut ';
2308: $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut'.'\\\\'."\n".'\strut ';
1.127 sakharuk 2309: if ($#Apache::londefdef::table > 0) {
2310: my $inmemory = $Apache::londefdef::table[-1]{'output'};
1.294 foxr 2311: # Figure out max/and min width by summing us and then
2312: # apply that to the current column of the table we nest in
2313: # if it's larger than the current width or the current width
2314: # is undefined.
2315: #
2316: my $min_nested_width = 0;
2317: my $max_nested_width = 0;
2318: for (my $col = 0; $col <= $Apache::londefdef::table[-1]{'counter_columns'}; $col++) {
2319: $min_nested_width += $min_len[$col];
2320: $max_nested_width += $max_len[$col];
1.300 foxr 2321:
1.294 foxr 2322: }
2323: # Fudge in an extra 5 mm for borders etc:
2324:
2325: $min_nested_width += 5;
2326: $max_nested_width += 5;
2327:
2328: my $outer_column = $Apache::londefdef::table[-2]{'counter_columns'};
2329: my $outer_row = $Apache::londefdef::table[-2]{'row_number'};
2330: if ($min_nested_width > $Apache::londefdef::table[-2]{'minlen'}[$outer_row][$outer_column]) {
2331: $Apache::londefdef::table[-2]{'minlen'}[$outer_row][$outer_column] = $min_nested_width;
2332: }
2333: if ($max_nested_width > $Apache::londefdef::table[-2]{'maxlen'}[$outer_row][$outer_column]) {
2334: $Apache::londefdef::table[-2]{'maxlen'}[$outer_row][$outer_column] = $max_nested_width;
2335: }
2336:
1.127 sakharuk 2337: pop @Apache::londefdef::table;
1.129 sakharuk 2338: push @{$Apache::londefdef::table[-1]{'include'}}, $inmemory;
1.127 sakharuk 2339: } else {
2340: $currentstring .= $Apache::londefdef::table[-1]{'output'};
2341: pop @Apache::londefdef::table;
1.143 sakharuk 2342: undef @Apache::londefdef::table;
1.127 sakharuk 2343: }
1.122 albertel 2344: }
2345: return $currentstring;
2346: }
2347:
1.166 sakharuk 2348: #-- <tr> tag (end tag optional)
1.122 albertel 2349: sub start_tr {
2350: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2351: my $currentstring = '';
1.325 ! albertel 2352: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2353: $currentstring = $token->[4];
2354: } elsif ($target eq 'tex') {
2355: $Apache::londefdef::table[-1]{'row_number'}++;
1.206 sakharuk 2356: my $alignchar=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.122 albertel 2357: if ($alignchar ne '') {
1.206 sakharuk 2358: push @ {$Apache::londefdef::table[-1]{'rows'} },substr($alignchar,0,1);
1.122 albertel 2359: } else {
2360: push @ {$Apache::londefdef::table[-1]{'rows'} }, 'l';
2361: }
2362: push ( @{ $Apache::londefdef::table[-1]{'rowdata'} }, $Apache::londefdef::table[-1]{'hinc'});
1.300 foxr 2363: #
2364: # Need to save the number of table columns to preserve the max # columns.
2365: #
2366: $Apache::londefdef::table[-1]{'prior_columns'} = $Apache::londefdef::table[-1]{'counter_columns'};
1.122 albertel 2367: $Apache::londefdef::table[-1]{'counter_columns'} = -1;
1.206 sakharuk 2368: push @ {$Apache::londefdef::table[-1]{'TeXlen'}}, [];
2369: push @ {$Apache::londefdef::table[-1]{'objectlen'}}, [];
2370: push @ {$Apache::londefdef::table[-1]{'minlen'}}, [];
2371: push @ {$Apache::londefdef::table[-1]{'maxlen'}}, [];
2372: push @ {$Apache::londefdef::table[-1]{'content'}}, [];
1.122 albertel 2373: }
2374: return $currentstring;
2375: }
2376:
2377: sub end_tr {
1.160 sakharuk 2378: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 2379: my $currentstring = &end_p(); # Close any pending <p> in the row.
1.325 ! albertel 2380: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 2381: $currentstring .= $token->[2];
1.122 albertel 2382: } elsif ($target eq 'tex') {
1.160 sakharuk 2383: if ($Apache::londefdef::TD_redirection) {
2384: &end_td_tex($parstack,$parser,$safeeval);
2385: }
1.300 foxr 2386: # Counter columns must be the maximum number of columns seen
2387: # in the table so far so:
2388: if ($Apache::londefdef::table[-1]{'prior_columns'} > $Apache::londefdef::table[-1]{'counter_columns'}) {
2389: $Apache::londefdef::table[-1]{'counter_columns'} = $Apache::londefdef::table[-1]{'prior_columns'};
2390: }
1.295 foxr 2391:
2392:
1.294 foxr 2393:
1.122 albertel 2394: }
2395: return $currentstring;
2396: }
2397:
1.166 sakharuk 2398: #-- <td> tag (end tag optional)
1.122 albertel 2399: sub start_td {
2400: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2401: my $currentstring = '';
1.325 ! albertel 2402: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2403: $currentstring = $token->[4];
2404: } elsif ($target eq 'tex') {
1.160 sakharuk 2405: $Apache::londefdef::TD_redirection = 1;
1.159 sakharuk 2406: &tag_check('tr','td',$tagstack,$parstack,$parser,$safeeval);
1.122 albertel 2407: }
2408: return $currentstring;
2409: }
1.159 sakharuk 2410:
2411: sub tag_check {
2412: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
1.160 sakharuk 2413: my @ar=@$parstack;
2414: for (my $i=$#ar-1;$i>=0;$i--) {
2415: if (lc($$tagstack[$i]) eq $good_tag) {
2416: &start_td_tex($parstack,$parser,$safeeval);
2417: last;
2418: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2419: splice @ar, $i+1;
2420: &end_td_tex(\@ar,$parser,$safeeval);
2421: &start_td_tex($parstack,$parser,$safeeval);
2422: last;
1.159 sakharuk 2423: }
1.160 sakharuk 2424: }
1.159 sakharuk 2425: return '';
2426: }
2427:
2428: sub start_td_tex {
2429: my ($parstack,$parser,$safeeval) = @_;
1.206 sakharuk 2430: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2431: if ($alignchar eq '') {
2432: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
1.159 sakharuk 2433: }
1.206 sakharuk 2434: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
1.159 sakharuk 2435: $Apache::londefdef::table[-1]{'counter_columns'}++;
1.206 sakharuk 2436: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2437: if (defined $TeXwidth) {
2438: my $current_length=&recalc($TeXwidth);
2439: $current_length=~/(\d+\.?\d*)/;
2440: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2441: }
1.159 sakharuk 2442: &Apache::lonxml::startredirection();
2443: return '';
2444: }
2445:
2446: sub end_td_tex {
2447: my ($parstack,$parser,$safeeval) = @_;
1.304 foxr 2448: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2449: my $current_column = $Apache::londefdef::table[-1]{'counter_columns'};
1.303 foxr 2450: my $data = &Apache::lonxml::endredirection();
2451:
1.305 foxr 2452: # The rowspan array of the table indicates which cells are part of a span.
2453: # n indicates the start of a span set of n rows.
2454: # ^ indicates a cell that continues a span set.
1.306 foxr 2455: # _ indicates the cell is at the bottom of a span set.
1.305 foxr 2456: # If this and subsequent cells are part of a rowspan, we must
2457: # push along the row until we find one that is not.
2458:
2459: while ((defined $Apache::londefdef::table[-1]{'rowspan'}[$current_row] [$current_column])
1.306 foxr 2460: && ($Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column] =~ /[\^\_]/)) {
1.305 foxr 2461: # Part of a span.
2462: push @ {$Apache::londefdef::table[-1]{'content'}[-1]}, '';
2463: $current_column++;
2464: }
2465: $Apache::londefdef::table[-1]{'counter_columns'} = $current_column;
2466:
2467:
1.320 foxr 2468: # Get the column and row spans.
2469: # Colspan can be done via \multicolumn if I can figure out the data structs.
2470:
2471: my $colspan = &Apache::lonxml::get_param('colspan', $parstack, $safeeval, undef, 0);
2472: if (!$colspan) {
2473: $colspan = 1;
2474: }
1.305 foxr 2475:
2476: my $rowspan = &Apache::lonxml::get_param('rowspan', $parstack, $safeeval, undef, 0);
2477: if (!$rowspan) {
2478: $rowspan = 1;
2479: }
2480:
1.303 foxr 2481:
1.305 foxr 2482:
1.320 foxr 2483: for (my $c = 0; $c < $colspan; $c++) {
2484: $Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column+$c] = $rowspan;
2485: for (my $i = 1; $i < $rowspan; $i++) {
2486: $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column+$c] = '^';
2487: if ($i == ($rowspan-1)) {
2488: $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column+$c] = '_';
2489: }
1.306 foxr 2490: }
1.305 foxr 2491: }
1.304 foxr 2492:
1.159 sakharuk 2493: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2494: if (defined $TeXwidth) {
1.206 sakharuk 2495: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2496: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2497: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
1.159 sakharuk 2498: } else {
1.206 sakharuk 2499: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2500: my $garbage_data=$data;
2501: my $fwidth=0;
2502: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2503: my $current_length=&recalc($1);
2504: $current_length=~/(\d+\.?\d*)/;
2505: if ($fwidth<$1) {$fwidth=$1;}
2506: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2507: }
2508: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2509: my $current_length=$1;
2510: if ($fwidth<$current_length) {$fwidth=$current_length;}
2511: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2512: }
2513: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2514: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2515: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2516: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
1.231 sakharuk 2517: } elsif ($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)*/) {
2518: my $garbage_data=$data;
2519: my $fwidth=0;
2520: while ($garbage_data=~/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)\s*\}/) {
2521: my $current_length=&recalc($1);
2522: $current_length=~/(\d+\.?\d*)/;
2523: if ($fwidth<$1) {$fwidth=$1;}
2524: $garbage_data=~s/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2525: }
2526: while ($garbage_data=~/\\epsfxsize\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: $garbage_data=~s/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2531: }
2532: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2533: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2534: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2535: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2536: $data=~s/\\\\\s*$//;
1.159 sakharuk 2537: } else {
1.166 sakharuk 2538: $data=~s/^\s+(\S.*)/$1/;
1.159 sakharuk 2539: $data=~s/(.*\S)\s+$/$1/;
1.166 sakharuk 2540: $data=~s/(\s)+/$1/;
1.206 sakharuk 2541: my ($current_length,$min_length)=(0,0);
1.166 sakharuk 2542: if ($data=~/\\vskip/) {
2543: my $newdata=$data;
2544: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2545: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2546: foreach my $elementdata (@newdata) {
1.206 sakharuk 2547: my $lengthnewdata=2.5*&LATEX_length($elementdata);
1.166 sakharuk 2548: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
1.206 sakharuk 2549: my @words=split(/ /,$elementdata);
2550: foreach my $word (@words) {
2551: my $lengthword=2.5*&LATEX_length($word);
2552: if ($min_length<$lengthword) {$min_length=$lengthword;}
2553: }
1.166 sakharuk 2554: }
2555: } else {
1.206 sakharuk 2556: $current_length=2.5*&LATEX_length($data);
2557: my @words=split(/ /,$data);
2558: foreach my $word (@words) {
1.228 sakharuk 2559: my $lengthword=2*&LATEX_length($word);
1.206 sakharuk 2560: if ($min_length<$lengthword) {$min_length=$lengthword;}
2561: }
1.166 sakharuk 2562: }
1.206 sakharuk 2563: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2564: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2565: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2566: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
1.159 sakharuk 2567: }
2568: }
1.302 foxr 2569: # Substitute all of the tables nested in this cell in their appropriate places.
2570:
2571:
2572: my $nested_count = $#{$Apache::londefdef::table[-1]{'include'}}; # This one is constant...
2573: for (my $in=0; $in<=$nested_count; $in++) {
1.301 foxr 2574: my $nested = shift @{$Apache::londefdef::table[-1]{'include'}};
2575: $nested =~ s/\\end\{tabular\}\\strut\\\\/\\end\{tabular\}/;
2576: # $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2577: $data =~ s/\\keephidden\{NEW TABLE ENTRY\}/$nested/;
2578:
2579: }
2580: # Should be be killing off the 'include' elements as they're used up?
1.305 foxr 2581:
1.206 sakharuk 2582: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
1.305 foxr 2583:
1.304 foxr 2584:
2585:
2586:
2587: # the colspan array will indicate how many columns will be spanned by this
2588: # cell..this requires that counter_columns also be adjusted accordingly
2589: # so that the next bunch of text goes in the right cell. Note that since
2590: # counter_columns is incremented in the start_td_tex, we adjust by colspan-1.
2591: #
2592:
2593: $Apache::londefdef::table[-1]{'counter_columns'} += $colspan -1;
2594: for (my $i = 0; $i < ($colspan -1); $i++) {
2595: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },'';
2596: }
1.320 foxr 2597: for (my $r = 0; $r < $rowspan; $r++) {
2598: $Apache::londefdef::table[-1]{'colspan'}[$current_row+$r][$current_column] = $colspan;
2599: # Put empty text in spanned cols.
2600:
2601: }
2602:
1.304 foxr 2603:
2604:
1.301 foxr 2605: return '';
1.159 sakharuk 2606: }
2607:
1.122 albertel 2608: sub end_td {
1.126 sakharuk 2609: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 2610: my $currentstring = '';
1.325 ! albertel 2611: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2612: $currentstring = $token->[2];
2613: } elsif ($target eq 'tex') {
1.160 sakharuk 2614: $Apache::londefdef::TD_redirection =0;
1.159 sakharuk 2615: &end_td_tex($parstack,$parser,$safeeval);
1.122 albertel 2616: }
2617: return $currentstring;
2618: }
2619:
1.166 sakharuk 2620: #-- <th> tag (end tag optional)
1.122 albertel 2621: sub start_th {
2622: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2623: my $currentstring = '';
1.325 ! albertel 2624: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2625: $currentstring = $token->[4];
2626: } elsif ($target eq 'tex') {
1.230 sakharuk 2627: $Apache::londefdef::TD_redirection = 1;
2628: &tagg_check('tr','th',$tagstack,$parstack,$parser,$safeeval);
1.122 albertel 2629: }
2630: return $currentstring;
1.130 sakharuk 2631: }
1.230 sakharuk 2632:
2633: sub tagg_check {
2634: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
2635: my @ar=@$parstack;
2636: for (my $i=$#ar-1;$i>=0;$i--) {
2637: if (lc($$tagstack[$i]) eq $good_tag) {
2638: &start_th_tex($parstack,$parser,$safeeval);
2639: last;
2640: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2641: splice @ar, $i+1;
2642: &end_th_tex(\@ar,$parser,$safeeval);
2643: &start_th_tex($parstack,$parser,$safeeval);
2644: last;
2645: }
2646: }
2647: return '';
2648: }
2649:
2650: sub start_th_tex {
2651: my ($parstack,$parser,$safeeval) = @_;
2652: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2653: if ($alignchar eq '') {
2654: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
2655: }
2656: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
2657: $Apache::londefdef::table[-1]{'counter_columns'}++;
2658: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2659: if (defined $TeXwidth) {
2660: my $current_length=&recalc($TeXwidth);
2661: $current_length=~/(\d+\.?\d*)/;
2662: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2663: }
2664: &Apache::lonxml::startredirection();
2665: return '';
2666: }
2667:
2668: sub end_th_tex {
2669: my ($parstack,$parser,$safeeval) = @_;
2670: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2671: my $data=&Apache::lonxml::endredirection();
2672: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2673: if (defined $TeXwidth) {
2674: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2675: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2676: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2677: } else {
2678: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2679: my $garbage_data=$data;
2680: my $fwidth=0;
2681: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2682: my $current_length=&recalc($1);
2683: $current_length=~/(\d+\.?\d*)/;
2684: if ($fwidth<$1) {$fwidth=$1;}
2685: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2686: }
2687: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2688: my $current_length=$1;
2689: if ($fwidth<$current_length) {$fwidth=$current_length;}
2690: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2691: }
2692: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2693: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2694: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2695: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2696: } else {
2697: $data=~s/^\s+(\S.*)/$1/;
2698: $data=~s/(.*\S)\s+$/$1/;
2699: $data=~s/(\s)+/$1/;
2700: my ($current_length,$min_length)=(0,0);
2701: if ($data=~/\\vskip/) {
2702: my $newdata=$data;
2703: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2704: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2705: foreach my $elementdata (@newdata) {
2706: my $lengthnewdata=2.5*&LATEX_length($elementdata);
2707: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
2708: my @words=split(/ /,$elementdata);
2709: foreach my $word (@words) {
2710: my $lengthword=2.5*&LATEX_length($word);
2711: if ($min_length<$lengthword) {$min_length=$lengthword;}
2712: }
2713: }
2714: } else {
2715: $current_length=2.5*&LATEX_length($data);
2716: my @words=split(/ /,$data);
2717: foreach my $word (@words) {
2718: my $lengthword=2*&LATEX_length($word);
2719: if ($min_length<$lengthword) {$min_length=$lengthword;}
2720: }
2721: }
2722: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2723: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2724: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2725: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
2726: }
2727: }
2728: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
2729: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2730: }
2731: #make data bold
2732: $data='\textbf{'.$data.'}';
2733: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
2734: return'';
2735: }
2736:
1.122 albertel 2737: sub end_th {
1.130 sakharuk 2738: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 2739: my $currentstring = &end_p(); # Close any open <p> in the row.
1.325 ! albertel 2740: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 2741: $currentstring .= $token->[2];
1.122 albertel 2742: } elsif ($target eq 'tex') {
1.230 sakharuk 2743: $Apache::londefdef::TD_redirection =0;
2744: &end_th_tex($parstack,$parser,$safeeval);
1.122 albertel 2745: }
2746: return $currentstring;
2747: }
1.230 sakharuk 2748:
1.181 sakharuk 2749: #-- <img> tag (end tag forbidden)
1.249 foxr 2750: #
2751: # Render the <IMG> tag.
2752: # <IMG> has the following attributes (in addition to the
2753: # standard HTML ones:
2754: # TeXwrap - Governs how the tex target will try to wrap text around
2755: # horizontally aligned images.
2756: # TeXwidth - The width of the image when rendered for print (mm).
2757: # TeXheight - The height of the image when rendered for print (mm)
2758: # (Note there seems to also be support for this as a % of page size)
2759: #
1.122 albertel 2760: sub start_img {
1.299 albertel 2761: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 2762: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,
2763: undef,1);
1.325 ! albertel 2764: if (! $src &&
! 2765: ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex')
! 2766: ) {
1.299 albertel 2767: my $inside = &Apache::lonxml::get_all_text("/img",$parser,$style);
1.189 albertel 2768: return '';
2769: }
1.290 albertel 2770: &Apache::lonxml::extlink($src);
1.122 albertel 2771: my $currentstring = '';
2772: my $scaling = .3;
1.249 foxr 2773:
2774: # Render unto browsers that which are the browser's...
2775:
1.325 ! albertel 2776: if ($target eq 'web' || $target eq 'webgrade') {
1.267 albertel 2777: if ($env{'browser.imagesuppress'} ne 'on') {
1.322 albertel 2778: my $enc = ('yes' eq
2779: lc(&Apache::lonxml::get_param('encrypturl',$parstack,
2780: $safeeval)));
2781: $currentstring.=&Apache::lonenc::encrypt_ref($token,{'src'=>$src},
2782: $enc);
1.122 albertel 2783: } else {
1.322 albertel 2784: my $alttag = &Apache::lonxml::get_param('alt',$parstack,$safeeval,
2785: undef,1);
2786: if (!$alttag) {
2787: $alttag = &Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2788: $src);
1.51 sakharuk 2789: }
1.158 sakharuk 2790: $currentstring.='[IMAGE: '.$alttag.']';
1.1 sakharuk 2791: }
1.249 foxr 2792:
2793: # and render unto TeX that which is LaTeX
2794:
1.122 albertel 2795: } elsif ($target eq 'tex') {
1.248 foxr 2796: #
2797: # The alignment will require some superstructure to be put around
2798: # the \includegraphics stuff. At present we can only partially
2799: # simulate the alignments offered by html.
2800: #
2801: #
2802: my $align = lc(&Apache::lonxml::get_param('align',
2803: $parstack,
2804: $safeeval,
2805: undef,1));
2806: if(!$align) {
1.287 foxr 2807: $align = "bottom"; # This is html's default so it's ours too.
1.248 foxr 2808: }
2809: #
2810: &Apache::lonxml::debug("Alignemnt = $align");
2811: # LaTeX's image/text wrapping is really bad since it wants to
2812: # make figures float.
2813: # The user has the optional parameter (applicable only to l/r
2814: # alignment to use the picins/parpic directive to get wrapped text
2815: # this is also imperfect.. that's why we give them a choice...
2816: # so they can't yell at us for our choice.
2817: #
2818: my $latex_rendering = &Apache::lonxml::get_param('TeXwrap',
2819: $parstack,
2820: $safeeval,
2821: undef,0);
1.312 foxr 2822: # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering");
1.248 foxr 2823: if(!$latex_rendering) {
1.312 foxr 2824: $latex_rendering = "texwrap";
2825: }
2826: # using texwrap inside a table does not work. So, if after all of this,
2827: # texwrap is on, we turn it off if we detect we're in a table:
2828: #
2829: if (($latex_rendering eq 'texwrap') && &is_inside_of($tagstack, "table")) {
2830: $latex_rendering = 'parpic';
1.248 foxr 2831: }
1.323 foxr 2832:
1.312 foxr 2833: # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering image file: $src");
1.248 foxr 2834:
1.256 albertel 2835: #if original gif/jpg/png file exist do following:
1.266 albertel 2836: my $origsrc=$src;
1.256 albertel 2837: my ($path,$file) = &get_eps_image($src);
1.122 albertel 2838: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.261 foxr 2839: &Apache::lonxml::debug("path = $path file = $file src = $src");
1.192 sakharuk 2840: if (-e $src) {
1.261 foxr 2841: &Apache::lonxml::debug("$src exists");
1.256 albertel 2842: my ($height_param,$width_param)=
1.266 albertel 2843: &image_size($origsrc,0.3,$parstack,$safeeval);
1.262 foxr 2844: my $destpath = $path;
1.263 foxr 2845: $destpath =~ s/ /\_/g; # Spaces in path cause LaTex to vomit.
2846: my $destfile = $file;
2847: $destfile =~ s/ /\_/g;
1.266 albertel 2848: my $size;
2849: if ($width_param) { $size.='width='.$width_param.' mm,'; }
2850: if ($height_param) { $size.='height='.$height_param.' mm]'; }
2851: $size='['.$size;
2852: $size=~s/,$/]/;
1.262 foxr 2853: $currentstring .= '\graphicspath{{'.$destpath.'}}'
1.266 albertel 2854: .'\includegraphics'.$size.'{'.$destfile.'} ';
1.256 albertel 2855:
1.248 foxr 2856: # If there's an alignment specification we need to honor it here.
2857: # For the horizontal alignments, we will also honor the
2858: # value of the latex specfication. The default is parbox,
2859: # and that's used for illegal values too.
2860: #
2861: # Even though we set a default alignment value, the user
2862: # could have given us an illegal value. In that case we
2863: # just use the default alignment of bottom..
2864: if ($align eq "top") {
2865: $currentstring = '\raisebox{-'.$height_param.'mm}{'.$currentstring.'}';
2866: } elsif (($align eq "center") || ($align eq "middle")) { # Being kind
2867: my $offset = $height_param/2;
2868: $currentstring = '\raisebox{-'.$offset.'mm}{'.$currentstring.'}';
2869: } elsif ($align eq "left") {
2870: if ($latex_rendering eq "parpic") {
2871: $currentstring = '\parpic[l]{'.$currentstring.'}';
1.286 foxr 2872: } else { # wrapfig render
2873: $currentstring = '\begin{wrapfigure}{l}{'.$width_param.'mm}'
2874: .'\scalebox{1.0}{'.$currentstring.'}\end{wrapfigure}';
1.248 foxr 2875: }
2876: } elsif ($align eq "right") {
2877: if ($latex_rendering eq "parpic") {
2878: $currentstring = '\parpic[r]{'.$currentstring.'}';
1.286 foxr 2879: } else { # wrapfig rendering
2880: $currentstring = '\begin{wrapfigure}{r}{'.$width_param.'mm}'
2881: .'\scalebox{1.0}{'.$currentstring.'}\end{wrapfigure}';
2882:
1.248 foxr 2883: }
2884: } else { # Bottom is also default.
2885: # $currentstring = '\raisebox{'.$height_param.'mm}{'.$currentstring.'}';
2886: }
1.122 albertel 2887: } else {
1.261 foxr 2888: &Apache::lonxml::debug("$src does not exist");
1.122 albertel 2889: #original image file doesn't exist so check the alt attribute
2890: my $alt =
2891: &Apache::lonxml::get_param('alt',$parstack,$safeeval,undef,1);
2892: unless ($alt) {
2893: $alt=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
2894: }
2895:
1.256 albertel 2896: if ($alt) { $currentstring .= ' '.$alt.' '; }
1.59 sakharuk 2897: }
1.249 foxr 2898:
2899: # And here's where the semi-quote breaks down: allow the user
2900: # to edit the beast as well by rendering the problem for edit:
1.186 albertel 2901: } elsif ($target eq 'edit') {
2902: $currentstring .=&Apache::edit::tag_start($target,$token);
2903: $currentstring .=&Apache::edit::text_arg('Image Url:','src',$token,70).
2904: &Apache::edit::browse('src',undef,'alt').' '.
2905: &Apache::edit::search('src',undef,'alt').'<br />';
2906: $currentstring .=&Apache::edit::text_arg('Description:','alt',$token,70).'<br />';
2907: $currentstring .=&Apache::edit::text_arg('width (pixel):','width',$token,5);
2908: $currentstring .=&Apache::edit::text_arg('height (pixel):','height',$token,5).'<br />';
2909: $currentstring .=&Apache::edit::text_arg('TeXwidth (mm):','TeXwidth',$token,5);
2910: $currentstring .=&Apache::edit::text_arg('TeXheight (mm):','TeXheight',$token,5);
1.234 albertel 2911: $currentstring .=&Apache::edit::select_arg('Alignment:','align',
2912: ['','bottom','middle','top','left','right'],$token,5);
1.249 foxr 2913: $currentstring .=&Apache::edit::select_arg('TeXwrap:', 'TeXwrap',
2914: ['', 'parbox', 'parpic'], $token, 2);
1.322 albertel 2915: $currentstring .=&Apache::edit::select_arg('Encyrpt URL:','encrypturl',
2916: ['no','yes'], $token, 2);
1.186 albertel 2917: $currentstring .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1.249 foxr 2918: my $src= &Apache::lonxml::get_param('src',$parstack,$safeeval);
2919: my $alt= &Apache::lonxml::get_param('alt',$parstack,$safeeval);
2920: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
2921: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
2922:
2923:
1.186 albertel 2924: $currentstring .= '<img src="'.$src.'" alt="'.$alt.'" ';
2925: if ($width) { $currentstring.=' width="'.$width.'" '; }
2926: if ($height) { $currentstring.=' height="'.$height.'" '; }
2927: $currentstring .= ' />';
2928: } elsif ($target eq 'modified') {
1.210 albertel 2929: my ($osrc,$owidth,$oheight)=
2930: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2931: my $ctag=&Apache::edit::get_new_args($token,$parstack,
1.234 albertel 2932: $safeeval,'src','alt','align',
1.249 foxr 2933: 'TeXwidth','TeXheight', 'TeXwrap',
1.322 albertel 2934: 'width','height','encrypturl');
1.210 albertel 2935: my ($nsrc,$nwidth,$nheight)=
2936: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2937: my $loc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$nsrc);
2938: &image_replication($loc);
2939: my ($iwidth,$iheight);
2940: if (-e $loc) {
2941: my $image = Image::Magick->new;
2942: $image->Read($loc);
2943: ($iwidth, $iheight) = ($image->Get('width'),
2944: $image->Get('height'));
2945: }
2946: if ($osrc ne $nsrc || (!$nwidth && !$nheight)) {
2947: # changed image or no size specified,
2948: # if they didn't explicitly change the
2949: # width or height use the ones from the image
2950: if ($iwidth && $iheight) {
2951: if ($owidth == $nwidth || (!$nwidth && !$nheight)) {
2952: $token->[2]{'width'} = $iwidth;$ctag=1;
2953: }
2954: if ($oheight == $nheight || (!$nwidth && !$nheight)) {
2955: $token->[2]{'height'}=$iheight;$ctag=1;
1.186 albertel 2956: }
2957: }
2958: }
1.210 albertel 2959: my ($cwidth,$cheight)=($token->[2]{'width'},$token->[2]{'height'});
2960: # if we don't have a width or height
2961: if ($iwidth && $cwidth && !$cheight) {
2962: $token->[2]{'height'}=int(($cwidth/$iwidth)*$iheight);$ctag=1;
2963: }
2964: if ($iheight && $cheight && !$cwidth) {
2965: $token->[2]{'width'}=int(($cheight/$iheight)*$iwidth);$ctag=1;
2966: }
2967: if ($ctag) {$currentstring=&Apache::edit::rebuild_tag($token);}
1.122 albertel 2968: }
1.261 foxr 2969:
1.122 albertel 2970: return $currentstring;
2971: }
2972:
2973: sub end_img {
2974: my ($target,$token) = @_;
2975: my $currentstring = '';
1.325 ! albertel 2976: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2977: $currentstring = $token->[2];
2978: } elsif ($target eq 'tex') {
2979: $currentstring = '';
2980: }
2981: return $currentstring;
2982: }
2983:
1.181 sakharuk 2984: #-- <applet> tag (end tag required)
1.122 albertel 2985: sub start_applet {
2986: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2987:
2988: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,undef,1);
1.290 albertel 2989: &Apache::lonxml::extlink($code);
1.122 albertel 2990: my $archive=&Apache::lonxml::get_param('archive',$parstack,$safeeval,
2991: undef,1);
1.290 albertel 2992: &Apache::lonxml::extlink($archive);
1.122 albertel 2993: my $currentstring = '';
1.325 ! albertel 2994: if ($target eq 'web' || $target eq 'webgrade') {
1.267 albertel 2995: if ($env{'browser.appletsuppress'} ne 'on') {
1.250 albertel 2996: $currentstring = &Apache::lonenc::encrypt_ref($token,
2997: {'code'=>$code,
2998: 'archive'=>$archive}
2999: );
1.122 albertel 3000: } else {
3001: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
3002: $safeeval,undef,1);
3003: unless ($alttag) {
3004: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
3005: $code);
1.44 sakharuk 3006: }
1.122 albertel 3007: $currentstring='[APPLET: '.$alttag.']';
1.1 sakharuk 3008: }
1.122 albertel 3009: } elsif ($target eq 'tex') {
1.177 albertel 3010: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
3011: $safeeval,undef,1);
3012: unless ($alttag) {
3013: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,
3014: undef,1);
3015: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
3016: $code);
1.175 sakharuk 3017: }
1.177 albertel 3018: $currentstring.='\begin{center} \fbox{Java Applet: '.$alttag.
3019: '.}\end{center}';
1.122 albertel 3020: }
3021: return $currentstring;
3022: }
3023:
3024: sub end_applet {
3025: my ($target,$token) = @_;
3026: my $currentstring = '';
1.325 ! albertel 3027: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3028: $currentstring = $token->[2];
3029: } elsif ($target eq 'tex') {
3030: }
3031: return $currentstring;
3032: }
3033:
1.181 sakharuk 3034: #-- <embed> tag (end tag optional/required)
1.122 albertel 3035: sub start_embed {
3036: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3037: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
1.290 albertel 3038: &Apache::lonxml::extlink($src);
1.122 albertel 3039: my $currentstring = '';
1.325 ! albertel 3040: if ($target eq 'web' || $target eq 'webgrade') {
1.267 albertel 3041: if ($env{'browser.embedsuppress'} ne 'on') {
1.250 albertel 3042: $currentstring=&Apache::lonenc::encrypt_ref($token,{'src'=>$src});
1.122 albertel 3043: } else {
3044: my $alttag=&Apache::lonxml::get_param
3045: ('alt',$parstack,$safeeval,undef,1);
3046: unless ($alttag) {
3047: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
1.42 albertel 3048: }
1.122 albertel 3049: $currentstring='[EMBED: '.$alttag.']';
1.10 www 3050: }
1.122 albertel 3051: } elsif ($target eq 'tex') {
3052: }
3053: return $currentstring;
3054: }
3055:
3056: sub end_embed {
3057: my ($target,$token) = @_;
3058: my $currentstring = '';
1.325 ! albertel 3059: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3060: $currentstring = $token->[2];
1.175 sakharuk 3061: } elsif ($target eq 'tex') {
1.122 albertel 3062: }
3063: return $currentstring;
3064: }
3065:
1.181 sakharuk 3066: #-- <param> tag (end tag forbidden)
1.122 albertel 3067: sub start_param {
3068: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.290 albertel 3069: if (&Apache::lonxml::get_param('name',$parstack,
3070: $safeeval,undef,1)=~/^cabbase$/i) {
3071: my $value=&Apache::lonxml::get_param('value',$parstack,
3072: $safeeval,undef,1);
3073: &Apache::lonxml::extlink($value);
3074: }
3075:
3076: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
3077: &Apache::lonxml::extlink($src);
1.122 albertel 3078: my $currentstring = '';
1.325 ! albertel 3079: if ($target eq 'web' || $target eq 'webgrade') {
1.250 albertel 3080: my %toconvert;
3081: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
3082: if ($src) { $toconvert{'src'}= $src; }
3083: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval,
3084: undef,1);
1.251 albertel 3085: if ($name=~/^cabbase$/i) {
3086: $toconvert{'value'}=&Apache::lonxml::get_param('value',$parstack,
3087: $safeeval,undef,1);
3088: }
1.250 albertel 3089: $currentstring = &Apache::lonenc::encrypt_ref($token,\%toconvert);
1.122 albertel 3090: } elsif ($target eq 'tex') {
3091: }
3092: return $currentstring;
3093: }
3094:
3095: sub end_param {
3096: my ($target,$token) = @_;
3097: my $currentstring = '';
1.325 ! albertel 3098: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3099: $currentstring = $token->[2];
3100: } elsif ($target eq 'tex') {
3101: }
3102: return $currentstring;
3103: }
3104:
3105: #-- <allow> tag
3106: sub start_allow {
3107: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3108: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
1.290 albertel 3109: &Apache::lonxml::extlink($src);
3110:
1.241 albertel 3111: if ($target eq 'tex') { &image_replication($src); }
1.122 albertel 3112: my $result;
3113: if ($target eq 'edit') {
3114: $result .=&Apache::edit::tag_start($target,$token);
3115: $result .=&Apache::edit::text_arg('File Spec:','src',$token,70);
3116: $result .=&Apache::edit::end_row();#.&Apache::edit::start_spanning_row();
3117: } elsif ($target eq 'modified') {
3118: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
3119: $safeeval,'src');
3120: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
3121: }
3122: return $result;
3123: }
3124:
3125: sub end_allow {
3126: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3127: if ( $target eq 'edit') { return (&Apache::edit::end_table()); }
3128: return '';
3129: }
1.119 www 3130:
1.181 sakharuk 3131: #-- Frames (end tag required)
3132: #-- <frameset>
1.122 albertel 3133: sub start_frameset {
3134: my ($target,$token) = @_;
1.277 foxr 3135: my $currentstring = ''; # Close any pending para.
1.325 ! albertel 3136: if ($target eq 'web' || $target eq 'webgrade') {
1.180 albertel 3137: if (!$Apache::lonxml::registered &&
1.267 albertel 3138: $env{'request.state'} eq 'published') {
1.122 albertel 3139: $currentstring.='<head>'.
3140: &Apache::lonmenu::registerurl(undef,$target).'</head>';
1.10 www 3141: }
1.133 www 3142: my $onLoad='';
3143: foreach my $key (keys(%{$token->[2]})) {
3144: if ($key =~ /^onload$/i) {
3145: $onLoad.=$token->[2]->{$key}.';';
3146: delete($token->[2]->{$key});
3147: }
3148: }
3149: $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad;
3150: my $onUnload='';
3151: foreach my $key (keys(%{$token->[2]})) {
3152: if ($key =~ /^onunload$/i) {
3153: $onUnload.=$token->[2]->{$key}.';';
3154: delete($token->[2]->{$key});
3155: }
3156: }
3157: $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().
3158: ';'.$onUnload;
3159:
3160: $currentstring .= '<'.$token->[1];
3161: foreach (keys %{$token->[2]}) {
3162: $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
3163: }
3164: $currentstring.='>';
1.122 albertel 3165: }
3166: return $currentstring;
3167: }
3168:
3169: sub end_frameset {
3170: my ($target,$token) = @_;
3171: my $currentstring = '';
1.325 ! albertel 3172: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3173: $currentstring = $token->[2];
3174: }
3175: return $currentstring;
3176: }
1.162 sakharuk 3177:
1.181 sakharuk 3178: #-- <xmp> (end tag required)
1.162 sakharuk 3179: sub start_xmp {
3180: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3181: my $currentstring = '';
1.325 ! albertel 3182: if ($target eq 'web' || $target eq 'webgrade') {
1.162 sakharuk 3183: $currentstring .= $token->[4];
3184: } elsif ($target eq 'tex') {
3185: $currentstring .= '\begin{verbatim}';
3186: }
3187: return $currentstring;
3188: }
3189:
3190: sub end_xmp {
3191: my ($target,$token) = @_;
3192: my $currentstring = '';
1.325 ! albertel 3193: if ($target eq 'web' || $target eq 'webgrade') {
1.162 sakharuk 3194: $currentstring .= $token->[2];
3195: } elsif ($target eq 'tex') {
3196: $currentstring .= '\end{verbatim}';
3197: }
3198: return $currentstring;
3199: }
3200:
1.181 sakharuk 3201: #-- <pre> (end tag required)
1.122 albertel 3202: sub start_pre {
1.126 sakharuk 3203: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 3204: my $currentstring = &end_p(); # close off pending <p>
1.325 ! albertel 3205: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3206: $currentstring .= $token->[4];
3207: } elsif ($target eq 'tex') {
1.136 sakharuk 3208: $currentstring .= '\begin{verbatim}';
1.319 albertel 3209: &Apache::lonxml::disable_LaTeX_substitutions();
1.122 albertel 3210: }
3211: return $currentstring;
3212: }
3213:
3214: sub end_pre {
3215: my ($target,$token) = @_;
3216: my $currentstring = '';
1.325 ! albertel 3217: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3218: $currentstring .= $token->[2];
3219: } elsif ($target eq 'tex') {
1.136 sakharuk 3220: $currentstring .= '\end{verbatim}';
1.319 albertel 3221: &Apache::lonxml::enable_LaTeX_substitutions();
1.122 albertel 3222: }
3223: return $currentstring;
3224: }
3225:
3226: #-- <insert>
3227: sub start_insert {
3228: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3229: my $currentstring = '';
1.325 ! albertel 3230: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3231: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
3232: $currentstring .= '<b>'.$display.'</b>';;
3233: }
3234: return $currentstring;
3235: }
3236:
3237: sub end_insert {
3238: my ($target,$token) = @_;
3239: my $currentstring = '';
1.325 ! albertel 3240: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3241: $currentstring .= '';
3242: }
3243: return $currentstring;
3244: }
3245:
3246: #-- <externallink>
3247: sub start_externallink {
3248: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3249: my $currentstring = '';
1.325 ! albertel 3250: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3251: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
3252: $currentstring .= '<b>'.$display.'</b>';;
3253: }
3254: return $currentstring;
3255: }
3256:
3257: sub end_externallink {
3258: my ($target,$token) = @_;
3259: my $currentstring = '';
1.325 ! albertel 3260: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3261: $currentstring .= '';
3262: }
3263: return $currentstring;
3264: }
3265:
3266: #-- <blankspace heigth="">
3267: sub start_blankspace {
3268: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 3269: my $currentstring = &end_p(); # closes off any unclosed <p>
1.122 albertel 3270: if ($target eq 'tex') {
3271: my $howmuch = &Apache::lonxml::get_param('heigth',$parstack,$safeeval,undef,1);
3272: $currentstring .= '\vskip '.$howmuch.' ';
3273: }
3274: return $currentstring;
3275: }
3276:
3277: sub end_blankspace {
3278: my ($target,$token) = @_;
3279: my $currentstring = '';
3280: if ($target eq 'tex') {
3281: $currentstring .= '';
3282: }
3283: return $currentstring;
3284: }
3285:
1.181 sakharuk 3286: #-- <abbr> tag (end tag required)
1.122 albertel 3287: sub start_abbr {
3288: my ($target,$token) = @_;
3289: my $currentstring = '';
1.325 ! albertel 3290: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3291: $currentstring = $token->[4];
3292: }
3293: return $currentstring;
3294: }
3295:
3296: sub end_abbr {
3297: my ($target,$token) = @_;
3298: my $currentstring = '';
1.325 ! albertel 3299: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3300: $currentstring = $token->[2];
3301: }
3302: return $currentstring;
3303: }
3304:
1.181 sakharuk 3305: #-- <acronym> tag (end tag required)
1.122 albertel 3306: sub start_acronym {
3307: my ($target,$token) = @_;
3308: my $currentstring = '';
1.325 ! albertel 3309: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3310: $currentstring = $token->[4];
3311: }
3312: return $currentstring;
3313: }
3314:
3315: sub end_acronym {
3316: my ($target,$token) = @_;
3317: my $currentstring = '';
1.325 ! albertel 3318: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3319: $currentstring = $token->[2];
3320: }
3321: return $currentstring;
3322: }
3323:
1.181 sakharuk 3324: #-- <area> tag (end tag forbidden)
1.122 albertel 3325: sub start_area {
3326: my ($target,$token) = @_;
3327: my $currentstring = '';
1.325 ! albertel 3328: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3329: $currentstring = $token->[4];
3330: }
3331: return $currentstring;
3332: }
3333:
3334: sub end_area {
3335: my ($target,$token) = @_;
3336: my $currentstring = '';
1.325 ! albertel 3337: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3338: $currentstring = $token->[2];
3339: }
3340: return $currentstring;
3341: }
3342:
1.181 sakharuk 3343: #-- <base> tag (end tag forbidden)
1.122 albertel 3344: sub start_base {
3345: my ($target,$token) = @_;
3346: my $currentstring = '';
1.325 ! albertel 3347: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3348: $currentstring = $token->[4];
1.161 sakharuk 3349: }
1.122 albertel 3350: return $currentstring;
3351: }
3352:
3353: sub end_base {
3354: my ($target,$token) = @_;
3355: my $currentstring = '';
1.325 ! albertel 3356: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3357: $currentstring = $token->[2];
3358: }
3359: return $currentstring;
3360: }
3361:
1.181 sakharuk 3362: #-- <bdo> tag (end tag required)
1.122 albertel 3363: sub start_bdo {
3364: my ($target,$token) = @_;
3365: my $currentstring = '';
1.325 ! albertel 3366: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3367: $currentstring = $token->[4];
3368: }
3369: return $currentstring;
3370: }
3371:
3372: sub end_bdo {
3373: my ($target,$token) = @_;
3374: my $currentstring = '';
1.325 ! albertel 3375: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3376: $currentstring = $token->[2];
3377: }
3378: return $currentstring;
3379: }
3380:
1.181 sakharuk 3381: #-- <bgsound> tag (end tag optional)
1.122 albertel 3382: sub start_bgsound {
3383: my ($target,$token) = @_;
3384: my $currentstring = '';
1.325 ! albertel 3385: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3386: $currentstring = $token->[4];
3387: }
3388: return $currentstring;
3389: }
3390:
3391: sub end_bgsound {
3392: my ($target,$token) = @_;
3393: my $currentstring = '';
1.325 ! albertel 3394: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3395: $currentstring = $token->[2];
3396: }
3397: return $currentstring;
3398: }
3399:
1.181 sakharuk 3400: #-- <blink> tag (end tag required)
1.122 albertel 3401: sub start_blink {
3402: my ($target,$token) = @_;
3403: my $currentstring = '';
1.325 ! albertel 3404: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3405: $currentstring = $token->[4];
3406: }
3407: return $currentstring;
3408: }
3409:
3410: sub end_blink {
3411: my ($target,$token) = @_;
3412: my $currentstring = '';
1.325 ! albertel 3413: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3414: $currentstring = $token->[2];
3415: }
3416: return $currentstring;
3417: }
3418:
1.181 sakharuk 3419: #-- <blockquote> tag (end tag required)
1.122 albertel 3420: sub start_blockquote {
3421: my ($target,$token) = @_;
1.279 foxr 3422: my $currentstring = &end_p(); # Close any unclosed <p>
1.325 ! albertel 3423: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 3424: $currentstring .= $token->[4];
1.122 albertel 3425: }
3426: return $currentstring;
3427: }
3428:
3429: sub end_blockquote {
3430: my ($target,$token) = @_;
3431: my $currentstring = '';
1.325 ! albertel 3432: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3433: $currentstring = $token->[2];
3434: }
3435: return $currentstring;
3436: }
3437:
1.181 sakharuk 3438: #-- <button> tag (end tag required)
1.122 albertel 3439: sub start_button {
3440: my ($target,$token) = @_;
3441: my $currentstring = '';
1.325 ! albertel 3442: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3443: $currentstring = $token->[4];
3444: }
3445: return $currentstring;
3446: }
3447:
3448: sub end_button {
3449: my ($target,$token) = @_;
3450: my $currentstring = '';
1.325 ! albertel 3451: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3452: $currentstring = $token->[2];
3453: }
3454: return $currentstring;
3455: }
3456:
1.181 sakharuk 3457: #-- <caption> tag (end tag required)
1.122 albertel 3458: sub start_caption {
3459: my ($target,$token) = @_;
3460: my $currentstring = '';
1.325 ! albertel 3461: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3462: $currentstring = $token->[4];
3463: }
3464: return $currentstring;
3465: }
3466:
3467: sub end_caption {
3468: my ($target,$token) = @_;
3469: my $currentstring = '';
1.325 ! albertel 3470: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3471: $currentstring = $token->[2];
3472: }
3473: return $currentstring;
3474: }
3475:
1.181 sakharuk 3476: #-- <col> tag (end tag forbdden)
1.122 albertel 3477: sub start_col {
3478: my ($target,$token) = @_;
3479: my $currentstring = '';
1.325 ! albertel 3480: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3481: $currentstring = $token->[4];
3482: }
3483: return $currentstring;
3484: }
3485:
3486: sub end_col {
3487: my ($target,$token) = @_;
3488: my $currentstring = '';
1.325 ! albertel 3489: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3490: $currentstring = $token->[2];
3491: }
3492: return $currentstring;
3493: }
3494:
1.181 sakharuk 3495: #-- <colgroup> tag (end tag optional)
1.122 albertel 3496: sub start_colgroup {
3497: my ($target,$token) = @_;
3498: my $currentstring = '';
1.325 ! albertel 3499: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3500: $currentstring = $token->[4];
3501: }
3502: return $currentstring;
3503: }
3504:
3505: sub end_colgroup {
3506: my ($target,$token) = @_;
3507: my $currentstring = '';
1.325 ! albertel 3508: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3509: $currentstring = $token->[2];
3510: }
3511: return $currentstring;
3512: }
3513:
1.181 sakharuk 3514: #-- <del> tag (end tag required)
1.122 albertel 3515: sub start_del {
3516: my ($target,$token) = @_;
3517: my $currentstring = '';
1.325 ! albertel 3518: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3519: $currentstring = $token->[4];
3520: }
3521: return $currentstring;
3522: }
3523:
3524: sub end_del {
3525: my ($target,$token) = @_;
3526: my $currentstring = '';
1.325 ! albertel 3527: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3528: $currentstring = $token->[2];
3529: }
3530: return $currentstring;
3531: }
3532:
1.181 sakharuk 3533: #-- <fieldset> tag (end tag required)
1.122 albertel 3534: sub start_fieldset {
3535: my ($target,$token) = @_;
3536: my $currentstring = '';
1.325 ! albertel 3537: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3538: $currentstring = $token->[4];
3539: }
3540: return $currentstring;
3541: }
3542:
3543: sub end_fieldset {
3544: my ($target,$token) = @_;
3545: my $currentstring = '';
1.325 ! albertel 3546: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3547: $currentstring = $token->[2];
3548: }
3549: return $currentstring;
3550: }
3551:
1.181 sakharuk 3552: #-- <frame> tag (end tag forbidden)
1.122 albertel 3553: sub start_frame {
3554: my ($target,$token) = @_;
3555: my $currentstring = '';
1.325 ! albertel 3556: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3557: $currentstring = $token->[4];
3558: }
3559: return $currentstring;
3560: }
3561:
3562: sub end_frame {
3563: my ($target,$token) = @_;
3564: my $currentstring = '';
1.325 ! albertel 3565: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3566: $currentstring = $token->[2];
3567: }
3568: return $currentstring;
3569: }
3570:
1.181 sakharuk 3571: #-- <iframe> tag (end tag required)
1.122 albertel 3572: sub start_iframe {
3573: my ($target,$token) = @_;
3574: my $currentstring = '';
1.325 ! albertel 3575: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3576: $currentstring = $token->[4];
3577: }
3578: return $currentstring;
3579: }
3580:
3581: sub end_iframe {
3582: my ($target,$token) = @_;
3583: my $currentstring = '';
1.325 ! albertel 3584: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3585: $currentstring = $token->[2];
3586: }
3587: return $currentstring;
3588: }
3589:
1.181 sakharuk 3590: #-- <ins> tag (end tag required)
1.122 albertel 3591: sub start_ins {
3592: my ($target,$token) = @_;
3593: my $currentstring = '';
1.325 ! albertel 3594: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3595: $currentstring = $token->[4];
3596: }
3597: return $currentstring;
3598: }
3599:
3600: sub end_ins {
3601: my ($target,$token) = @_;
3602: my $currentstring = '';
1.325 ! albertel 3603: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3604: $currentstring = $token->[2];
3605: }
3606: return $currentstring;
3607: }
3608:
1.181 sakharuk 3609: #-- <isindex> tag (end tag forbidden)
1.122 albertel 3610: sub start_isindex {
3611: my ($target,$token) = @_;
3612: my $currentstring = '';
1.325 ! albertel 3613: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3614: $currentstring = $token->[4];
3615: }
3616: return $currentstring;
3617: }
3618:
3619: sub end_isindex {
3620: my ($target,$token) = @_;
3621: my $currentstring = '';
1.325 ! albertel 3622: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3623: $currentstring = $token->[2];
3624: }
3625: return $currentstring;
3626: }
3627:
1.181 sakharuk 3628: #-- <keygen> tag (end tag forbidden)
1.122 albertel 3629: sub start_keygen {
3630: my ($target,$token) = @_;
3631: my $currentstring = '';
1.325 ! albertel 3632: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3633: $currentstring = $token->[4];
3634: }
3635: return $currentstring;
3636: }
3637:
3638: sub end_keygen {
3639: my ($target,$token) = @_;
3640: my $currentstring = '';
1.325 ! albertel 3641: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3642: $currentstring = $token->[2];
3643: }
3644: return $currentstring;
3645: }
3646:
3647: #-- <label> tag
3648: sub start_label {
3649: my ($target,$token) = @_;
3650: my $currentstring = '';
1.325 ! albertel 3651: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3652: $currentstring = $token->[4];
3653: }
3654: return $currentstring;
3655: }
3656:
3657: sub end_label {
3658: my ($target,$token) = @_;
3659: my $currentstring = '';
1.325 ! albertel 3660: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3661: $currentstring = $token->[2];
3662: }
3663: return $currentstring;
3664: }
3665:
1.181 sakharuk 3666: #-- <layer> tag (end tag required)
1.122 albertel 3667: sub start_layer {
3668: my ($target,$token) = @_;
3669: my $currentstring = '';
1.325 ! albertel 3670: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3671: $currentstring = $token->[4];
3672: }
3673: return $currentstring;
3674: }
3675:
3676: sub end_layer {
3677: my ($target,$token) = @_;
3678: my $currentstring = '';
1.325 ! albertel 3679: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3680: $currentstring = $token->[2];
3681: }
3682: return $currentstring;
3683: }
3684:
1.181 sakharuk 3685: #-- <legend> tag (end tag required)
1.122 albertel 3686: sub start_legend {
3687: my ($target,$token) = @_;
3688: my $currentstring = '';
1.325 ! albertel 3689: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3690: $currentstring = $token->[4];
3691: }
3692: return $currentstring;
3693: }
3694:
3695: sub end_legend {
3696: my ($target,$token) = @_;
3697: my $currentstring = '';
1.325 ! albertel 3698: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3699: $currentstring = $token->[2];
3700: }
3701: return $currentstring;
3702: }
3703:
1.181 sakharuk 3704: #-- <link> tag (end tag forbidden)
1.122 albertel 3705: sub start_link {
1.292 albertel 3706: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 3707: my $currentstring = '';
1.324 albertel 3708: if ($target eq 'web' || $target eq 'webgrade') {
1.291 albertel 3709: my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
3710: undef,1);
3711: &Apache::lonxml::extlink($href);
1.122 albertel 3712: $currentstring = $token->[4];
3713: }
3714: return $currentstring;
3715: }
3716:
3717: sub end_link {
3718: my ($target,$token) = @_;
3719: my $currentstring = '';
1.325 ! albertel 3720: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3721: $currentstring = $token->[2];
3722: }
3723: return $currentstring;
3724: }
3725:
1.181 sakharuk 3726: #-- <marquee> tag (end tag optional)
1.122 albertel 3727: sub start_marquee {
3728: my ($target,$token) = @_;
3729: my $currentstring = '';
1.325 ! albertel 3730: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3731: $currentstring = $token->[4];
3732: }
3733: return $currentstring;
3734: }
3735:
3736: sub end_marquee {
3737: my ($target,$token) = @_;
3738: my $currentstring = '';
1.325 ! albertel 3739: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3740: $currentstring = $token->[2];
3741: }
3742: return $currentstring;
3743: }
3744:
1.179 sakharuk 3745: #-- <multicol> tag (end tag required)
3746: sub start_multicol {
1.122 albertel 3747: my ($target,$token) = @_;
1.279 foxr 3748: my $currentstring = &end_p(); # Close any pending <p>
1.325 ! albertel 3749: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 3750: $currentstring .= $token->[4];
1.122 albertel 3751: }
3752: return $currentstring;
3753: }
3754:
1.179 sakharuk 3755: sub end_multicol {
1.122 albertel 3756: my ($target,$token) = @_;
3757: my $currentstring = '';
1.325 ! albertel 3758: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3759: $currentstring = $token->[2];
3760: }
3761: return $currentstring;
3762: }
3763:
1.179 sakharuk 3764: #-- <nobr> tag (end tag required)
1.122 albertel 3765: sub start_nobr {
3766: my ($target,$token) = @_;
3767: my $currentstring = '';
1.325 ! albertel 3768: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3769: $currentstring = $token->[4];
1.179 sakharuk 3770: } elsif ($target eq 'tex') {
3771: $currentstring='\mbox{';
3772: }
1.122 albertel 3773: return $currentstring;
3774: }
3775:
3776: sub end_nobr {
3777: my ($target,$token) = @_;
3778: my $currentstring = '';
1.325 ! albertel 3779: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3780: $currentstring = $token->[2];
1.179 sakharuk 3781: } elsif ($target eq 'tex') {
3782: $currentstring='}';
3783: }
1.122 albertel 3784: return $currentstring;
3785: }
3786:
1.179 sakharuk 3787: #-- <noembed> tag (end tag required)
1.122 albertel 3788: sub start_noembed {
3789: my ($target,$token) = @_;
3790: my $currentstring = '';
1.325 ! albertel 3791: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3792: $currentstring = $token->[4];
3793: }
3794: return $currentstring;
3795: }
3796:
3797: sub end_noembed {
3798: my ($target,$token) = @_;
3799: my $currentstring = '';
1.325 ! albertel 3800: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3801: $currentstring = $token->[2];
3802: }
3803: return $currentstring;
3804: }
3805:
1.179 sakharuk 3806: #-- <noframes> tag (end tag required)
1.122 albertel 3807: sub start_noframes {
3808: my ($target,$token) = @_;
3809: my $currentstring = '';
1.325 ! albertel 3810: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3811: $currentstring = $token->[4];
3812: }
3813: return $currentstring;
3814: }
3815:
3816: sub end_noframes {
3817: my ($target,$token) = @_;
3818: my $currentstring = '';
1.325 ! albertel 3819: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3820: $currentstring = $token->[2];
3821: }
3822: return $currentstring;
3823: }
3824:
1.179 sakharuk 3825: #-- <nolayer> tag (end tag required)
1.122 albertel 3826: sub start_nolayer {
3827: my ($target,$token) = @_;
3828: my $currentstring = '';
1.325 ! albertel 3829: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3830: $currentstring = $token->[4];
3831: }
3832: return $currentstring;
3833: }
3834:
3835: sub end_nolayer {
3836: my ($target,$token) = @_;
3837: my $currentstring = '';
1.325 ! albertel 3838: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3839: $currentstring = $token->[2];
3840: }
3841: return $currentstring;
3842: }
3843:
1.179 sakharuk 3844: #-- <noscript> tag (end tag required)
1.122 albertel 3845: sub start_noscript {
3846: my ($target,$token) = @_;
3847: my $currentstring = '';
1.325 ! albertel 3848: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3849: $currentstring = $token->[4];
3850: }
3851: return $currentstring;
3852: }
3853:
3854: sub end_noscript {
3855: my ($target,$token) = @_;
3856: my $currentstring = '';
1.325 ! albertel 3857: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3858: $currentstring = $token->[2];
3859: }
3860: return $currentstring;
3861: }
3862:
1.179 sakharuk 3863: #-- <object> tag (end tag required)
1.122 albertel 3864: sub start_object {
3865: my ($target,$token) = @_;
3866: my $currentstring = '';
1.325 ! albertel 3867: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3868: $currentstring = $token->[4];
3869: }
3870: return $currentstring;
3871: }
3872:
3873: sub end_object {
3874: my ($target,$token) = @_;
3875: my $currentstring = '';
1.325 ! albertel 3876: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3877: $currentstring = $token->[2];
3878: }
3879: return $currentstring;
3880: }
3881:
1.179 sakharuk 3882: #-- <optgroup> tag (end tag required)
1.122 albertel 3883: sub start_optgroup {
3884: my ($target,$token) = @_;
3885: my $currentstring = '';
1.325 ! albertel 3886: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3887: $currentstring = $token->[4];
3888: }
3889: return $currentstring;
3890: }
3891:
3892: sub end_optgroup {
3893: my ($target,$token) = @_;
3894: my $currentstring = '';
1.325 ! albertel 3895: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3896: $currentstring = $token->[2];
3897: }
3898: return $currentstring;
3899: }
3900:
1.179 sakharuk 3901: #-- <samp> tag (end tag required)
1.122 albertel 3902: sub start_samp {
3903: my ($target,$token) = @_;
3904: my $currentstring = '';
1.325 ! albertel 3905: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3906: $currentstring = $token->[4];
1.179 sakharuk 3907: } elsif ($target eq 'tex') {
3908: $currentstring='\texttt{';
3909: }
1.122 albertel 3910: return $currentstring;
3911: }
3912:
3913: sub end_samp {
3914: my ($target,$token) = @_;
3915: my $currentstring = '';
1.325 ! albertel 3916: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3917: $currentstring = $token->[2];
1.179 sakharuk 3918: } elsif ($target eq 'tex') {
3919: $currentstring='}';
3920: }
1.122 albertel 3921: return $currentstring;
3922: }
3923:
3924: #-- <server> tag
3925: sub start_server {
3926: my ($target,$token) = @_;
3927: my $currentstring = '';
1.325 ! albertel 3928: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3929: $currentstring = $token->[4];
3930: }
3931: return $currentstring;
3932: }
3933:
3934: sub end_server {
3935: my ($target,$token) = @_;
3936: my $currentstring = '';
1.325 ! albertel 3937: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3938: $currentstring = $token->[2];
3939: }
3940: return $currentstring;
3941: }
3942:
1.179 sakharuk 3943: #-- <spacer> tag (end tag forbidden)
1.122 albertel 3944: sub start_spacer {
3945: my ($target,$token) = @_;
1.279 foxr 3946: my $currentstring = &end_p(); # Close off any open <p> tag.
1.325 ! albertel 3947: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 3948: $currentstring .= $token->[4];
1.122 albertel 3949: }
3950: return $currentstring;
3951: }
3952:
3953: sub end_spacer {
3954: my ($target,$token) = @_;
3955: my $currentstring = '';
1.325 ! albertel 3956: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3957: $currentstring = $token->[2];
3958: }
3959: return $currentstring;
3960: }
3961:
1.179 sakharuk 3962: #-- <span> tag (end tag required)
1.122 albertel 3963: sub start_span {
3964: my ($target,$token) = @_;
3965: my $currentstring = '';
1.325 ! albertel 3966: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3967: $currentstring = $token->[4];
3968: }
3969: return $currentstring;
3970: }
3971:
3972: sub end_span {
3973: my ($target,$token) = @_;
3974: my $currentstring = '';
1.325 ! albertel 3975: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3976: $currentstring = $token->[2];
3977: }
3978: return $currentstring;
3979: }
3980:
1.179 sakharuk 3981: #-- <tbody> tag (end tag optional)
1.122 albertel 3982: sub start_tbody {
3983: my ($target,$token) = @_;
3984: my $currentstring = '';
1.325 ! albertel 3985: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3986: $currentstring = $token->[4];
3987: }
3988: return $currentstring;
3989: }
3990:
3991: sub end_tbody {
3992: my ($target,$token) = @_;
3993: my $currentstring = '';
1.325 ! albertel 3994: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3995: $currentstring = $token->[2];
3996: }
3997: return $currentstring;
3998: }
3999:
1.166 sakharuk 4000: #-- <tfoot> tag (end tag optional)
1.122 albertel 4001: sub start_tfoot {
4002: my ($target,$token) = @_;
4003: my $currentstring = '';
1.325 ! albertel 4004: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4005: $currentstring = $token->[4];
4006: }
4007: return $currentstring;
4008: }
4009:
4010: sub end_tfoot {
4011: my ($target,$token) = @_;
4012: my $currentstring = '';
1.325 ! albertel 4013: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4014: $currentstring = $token->[2];
4015: }
4016: return $currentstring;
4017: }
4018:
1.166 sakharuk 4019: #-- <thead> tag (end tag optional)
1.122 albertel 4020: sub start_thead {
4021: my ($target,$token) = @_;
4022: my $currentstring = '';
1.325 ! albertel 4023: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4024: $currentstring = $token->[4];
4025: }
4026: return $currentstring;
4027: }
1.10 www 4028:
1.122 albertel 4029: sub end_thead {
4030: my ($target,$token) = @_;
4031: my $currentstring = '';
1.325 ! albertel 4032: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4033: $currentstring = $token->[2];
4034: }
4035: return $currentstring;
4036: }
1.119 www 4037:
1.122 albertel 4038: #-- <var> tag
4039: sub start_var {
1.44 sakharuk 4040: my ($target,$token) = @_;
4041: my $currentstring = '';
1.325 ! albertel 4042: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4043: $currentstring = $token->[4];
1.163 sakharuk 4044: } elsif ($target eq 'tex') {
4045: $currentstring = '\textit{';
4046: }
1.44 sakharuk 4047: return $currentstring;
4048: }
1.10 www 4049:
1.122 albertel 4050: sub end_var {
4051: my ($target,$token) = @_;
1.44 sakharuk 4052: my $currentstring = '';
1.325 ! albertel 4053: if ($target eq 'web' || $target eq 'webgrade') {
1.163 sakharuk 4054: $currentstring = $token->[2];
4055: } elsif ($target eq 'tex') {
4056: $currentstring = '}';
1.44 sakharuk 4057: }
4058: return $currentstring;
4059: }
1.119 www 4060:
1.163 sakharuk 4061: #-- <wbr> tag (end tag forbidden)
1.122 albertel 4062: sub start_wbr {
4063: my ($target,$token) = @_;
4064: my $currentstring = '';
1.325 ! albertel 4065: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4066: $currentstring = $token->[4];
4067: }
4068: return $currentstring;
1.98 albertel 4069: }
4070:
1.122 albertel 4071: sub end_wbr {
4072: my ($target,$token) = @_;
4073: my $currentstring = '';
1.325 ! albertel 4074: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4075: $currentstring = $token->[2];
4076: }
4077: return $currentstring;
1.98 albertel 4078: }
1.134 sakharuk 4079:
4080: #-- <hideweboutput> tag
4081: sub start_hideweboutput {
4082: my ($target,$token) = @_;
1.325 ! albertel 4083: if ($target eq 'web' || $target eq 'webgrade') {
1.134 sakharuk 4084: &Apache::lonxml::startredirection();
4085: }
4086: return '';
4087: }
4088:
4089: sub end_hideweboutput {
4090: my ($target,$token) = @_;
4091: my $currentstring = '';
1.325 ! albertel 4092: if ($target eq 'web' || $target eq 'webgrade') {
1.134 sakharuk 4093: $currentstring = &Apache::lonxml::endredirection();
4094: }
4095: return '';
4096: }
4097:
1.94 sakharuk 4098:
4099: sub image_replication {
4100: my $src = shift;
1.187 albertel 4101: if (not -e $src) { &Apache::lonnet::repcopy($src); }
4102: #replicates eps or ps
4103: my $epssrc = my $pssrc = $src;
4104: $epssrc =~ s/\.(gif|jpg|jpeg|png)$/.eps/i;
4105: $pssrc =~ s/\.(gif|jpg|jpeg|png)$/.ps/i;
4106: if (not -e $epssrc && not -e $pssrc) {
4107: my $result=&Apache::lonnet::repcopy($epssrc);
1.264 raeburn 4108: if ($result ne 'ok') { &Apache::lonnet::repcopy($pssrc); }
1.94 sakharuk 4109: }
4110: return '';
1.195 sakharuk 4111: }
1.275 foxr 4112: #
4113: # Get correct sizing parameter for an image given
4114: # it's initial ht. and wid. This allows sizing of
4115: # images that are generated on-the-fly (e.g. gnuplot)
4116: # as well as serving as a utility for image_size.
4117: #
4118: # Parameter:
4119: # height_param
4120: # width_param - Initial picture dimensions.
4121: # scaling - A scale factor.
4122: # parstack, - the current stack of tag attributes
4123: # from the xml parser
4124: # safeeval, - pointer to the safespace
4125: # depth, - from what level in the stack to look for attributes
4126: # (assumes -1 if unspecified)
4127: # cis - look for attrubutes case insensitively
4128: # (assumes false)
4129: #
4130: # Returns:
4131: # height, width - new dimensions.
4132: #
4133: sub resize_image {
4134: my ($height_param, $width_param, $scaling,
4135: $parstack, $safeeval, $depth, $cis) = @_;
4136:
4137: # First apply the scaling...
1.271 foxr 4138:
1.275 foxr 4139: $height_param = $height_param * $scaling;
4140: $width_param = $width_param * $scaling;
1.261 foxr 4141:
1.197 sakharuk 4142: #do we have any specified LaTeX size of the picture?
1.261 foxr 4143: my $toget='TeXwidth';
4144: if ($cis) {
4145: $toget=lc($toget);
4146: }
1.256 albertel 4147: my $TeXwidth = &Apache::lonxml::get_param($toget,$parstack,
4148: $safeeval,$depth,$cis);
4149: $toget='TeXheight'; if ($cis) { $toget=lc($toget); }
4150: my $TeXheight = &Apache::lonxml::get_param($toget,$parstack,
4151: $safeeval,$depth,$cis);
1.197 sakharuk 4152: #do we have any specified web size of the picture?
4153: my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval,
1.256 albertel 4154: $depth,1);
4155: if ($TeXwidth) {
1.252 matthew 4156: my $old_width_param=$width_param;
1.197 sakharuk 4157: if ($TeXwidth=~/(\d+)\s*\%/) {
1.267 albertel 4158: $width_param = $1*$env{'form.textwidth'}/100;
1.197 sakharuk 4159: } else {
4160: $width_param = $TeXwidth;
4161: }
1.266 albertel 4162: if ($TeXheight) {
4163: $height_param = $TeXheight;
4164: } elsif ($old_width_param) {
4165: $height_param=$TeXwidth/$old_width_param*$height_param;
4166: }
1.256 albertel 4167: } elsif ($TeXheight) {
1.248 foxr 4168: $height_param = $TeXheight;
1.266 albertel 4169: if ($height_param) {
4170: $width_param = $TeXheight/$height_param*$width_param;
4171: }
1.256 albertel 4172: } elsif ($width) {
1.252 matthew 4173: my $old_width_param=$width_param;
1.256 albertel 4174: $width_param = $width*$scaling;
1.266 albertel 4175: if ($old_width_param) {
4176: $height_param=$width_param/$old_width_param*$height_param;
4177: }
1.252 matthew 4178: }
1.267 albertel 4179: if ($width_param > $env{'form.textwidth'}) {
1.252 matthew 4180: my $old_width_param=$width_param;
1.267 albertel 4181: $width_param =0.95*$env{'form.textwidth'};
1.266 albertel 4182: if ($old_width_param) {
4183: $height_param=$width_param/$old_width_param*$height_param;
4184: }
1.197 sakharuk 4185: }
1.275 foxr 4186:
4187: return ($height_param, $width_param);
4188: }
4189:
4190: sub image_size {
4191: my ($src,$scaling,$parstack,$safeeval,$depth,$cis)=@_;
4192:
4193: #size of image from gif/jpg/jpeg/png
4194: my $ressrc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
4195: if (-e $ressrc) {
4196: $src = $ressrc;
4197: }
4198: my $image = Image::Magick->new;
4199: my $current_figure = $image->Read($src);
4200: my $width_param = $image->Get('width');
4201: my $height_param = $image->Get('height');
4202: &Apache::lonxml::debug("Image magick says: $src : Height = $height_param width = $width_param");
4203: undef($image);
4204:
4205: ($height_param, $width_param) = &resize_image($height_param, $width_param,
4206: $scaling, $parstack, $safeeval,
4207: $depth, $cis);
4208:
1.248 foxr 4209: return ($height_param, $width_param);
4210: }
4211:
4212: sub image_width {
4213: my ($height, $width) = &image_size(@_);
4214: return $width;
4215: }
4216: # Not yet 100% sure this is correct in all circumstances..
4217: # due to my uncertainty about mods to image_size.
4218: #
4219: sub image_height {
4220: my ($height, $width) = &image_size(@_);
4221: return $height;
1.197 sakharuk 4222: }
4223:
1.256 albertel 4224: sub get_eps_image {
4225: my ($src)=@_;
1.261 foxr 4226: my $orig_src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1], $src);
1.285 foxr 4227:
4228: # In order to prevent the substitution of the alt text, we need to
4229: # be sure the orig_src file is on system now so:
4230:
4231: if (! -e $orig_src) {
4232: &Apache::lonnet::repcopy($orig_src); # Failure is not completely fatal.
4233: }
1.275 foxr 4234: &Apache::lonxml::debug("get_eps_image: Original image: $orig_src");
1.282 foxr 4235: my ($spath, $sname, $sext) = fileparse($src, qr/\.(gif|png|jpg|jpeg)/i);
1.256 albertel 4236: $src=~s/\.(gif|png|jpg|jpeg)$/\.eps/i;
4237: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.275 foxr 4238: &Apache::lonxml::debug("Filelocation gives: $src");
1.256 albertel 4239: if (! -e $src) {
1.261 foxr 4240: &Apache::lonxml::debug("$src does not exist");
1.264 raeburn 4241: if (&Apache::lonnet::repcopy($src) ne 'ok' ) {
1.261 foxr 4242: &Apache::lonxml::debug("Repcopy of $src failed (1)");
1.256 albertel 4243: #if replication failed try to find ps file
4244: $src=~s/\.eps$/\.ps/;
1.261 foxr 4245: &Apache::lonxml::debug("Now looking for $src");
1.270 foxr 4246: #if no ps file try to replicate it.
4247: my $didrepcopy = &Apache::lonnet::repcopy($src);
4248: &Apache::lonxml::debug("repcopy of $src ... $didrepcopy");
4249: if ( (not -e $src) ||
4250: ($didrepcopy ne 'ok')) {
1.261 foxr 4251: &Apache::lonxml::debug("Failed to find or replicate $src");
4252:
1.256 albertel 4253: #if replication failed try to produce eps file dynamically
4254: $src=~s/\.ps$/\.eps/;
4255: my $temp_file;
1.267 albertel 4256: open(FILE,">>/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat");
1.256 albertel 4257: my $newsrc=$orig_src;
4258: $newsrc =~ s|(.*)/res/|/home/httpd/html/res/|;
1.275 foxr 4259: &Apache::lonxml::debug("queueing $newsrc for dynamic eps production.");
1.256 albertel 4260: print FILE "$newsrc\n";
1.261 foxr 4261: close FILE;
1.256 albertel 4262: $src=~s|/home/httpd/html/res|/home/httpd/prtspool|;
4263: $src=~s|/home/([^/]*)/public_html/|/home/httpd/prtspool/$1/|;
1.283 albertel 4264: if ($sext ne "") { # Put the ext. back in to uniquify.
4265: $src =~ s/\.eps$/$sext.eps/;
4266: }
1.256 albertel 4267: }
4268: }
4269: }
4270: my ($path,$file)=($src=~m|(.*)/([^/]*)$|);
1.261 foxr 4271: &Apache::lonxml::debug("get_eps_image returning: $path / $file<BR />");
1.256 albertel 4272: return ($path.'/',$file);
4273: }
4274:
1.195 sakharuk 4275: sub eps_generation {
4276: my ($src,$file,$width_param) = @_;
1.267 albertel 4277: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat";
1.195 sakharuk 4278: my $temp_file = Apache::File->new('>>'.$filename);
4279: print $temp_file "$src\n";
4280: my $newsrc = $src;
4281: $newsrc =~ s/(\.gif|\.jpg|\.jpeg)$/\.eps/i;
4282: $newsrc=~s/\/home\/httpd\/html\/res//;
4283: $newsrc=~s/\/home\/([^\/]*)\/public_html\//\/$1\//;
4284: $newsrc=~s/\/\.\//\//;
4285: $newsrc=~s/\/([^\/]+)\.(ps|eps)/\//;
1.213 sakharuk 4286: if ($newsrc=~/\/home\/httpd\/lonUsers\//) {
4287: $newsrc=~s/\/home\/httpd\/lonUsers//;
4288: $newsrc=~s/\/([^\/]+)\/(\w)\/(\w)\/(\w)\//\/$1\//;
4289: }
1.239 sakharuk 4290: if ($newsrc=~/\/userfiles\//) {
4291: return ' \graphicspath{{'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4292: } else {
4293: return ' \graphicspath{{/home/httpd/prtspool'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4294: }
1.197 sakharuk 4295: }
4296:
4297: sub file_path {
4298: my $src=shift;
4299: my ($file,$path);
4300: if ($src =~ m!(.*)/([^/]*)$!) {
4301: $file = $2;
4302: $path = $1.'/';
4303: }
4304: return $file,$path;
1.126 sakharuk 4305: }
1.294 foxr 4306: # Converts a measurement in to mm from any of
4307: # the other valid LaTeX units of measure.
4308: # If the units of measure are missing from the
4309: # parameter, it is assumed to be in and returned
4310: # with mm units of measure
1.126 sakharuk 4311: sub recalc {
4312: my $argument = shift;
4313: if (not $argument=~/(mm|cm|in|pc|pt)/) {return $argument.' mm';}
1.132 sakharuk 4314: $argument=~/\s*(\d+\.?\d*)\s*(mm|cm|in|pc|pt)/;
1.126 sakharuk 4315: my $value=$1;
4316: my $units=$2;
4317: if ($units eq 'cm') {
4318: $value*=10;
4319: } elsif ($units eq 'in') {
4320: $value*=25.4;
4321: } elsif ($units eq 'pc') {
4322: $value*=(25.4*12/72.27);
4323: } elsif ($units eq 'pt') {
4324: $value*=(25.4/72.27);
4325: }
4326: return $value.' mm';
1.94 sakharuk 4327: }
1.184 sakharuk 4328:
4329: sub LATEX_length {
4330: my $garbage=shift;
1.206 sakharuk 4331: $garbage=~s/^\s+$//;
4332: $garbage=~s/^\s+(\S.*)/$1/;#space before
4333: $garbage=~s/(.*\S)\s+$/$1/;#space after
4334: $garbage=~s/(\s)+/$1/;#only one space
4335: $garbage=~s/(\\begin{([^\}]+)}|\\end{([^\}]+)})//g;#remove LaTeX \begin{...} and \end{...}
4336: $garbage=~s/(\$\_\{|\$\_|\$\^{|\$\^|\}\$)//g;#remove $_{,$_,$^{,$^,}$
4337: $garbage=~s/([^\\])\$/$1/g;#$
4338: $garbage=~s/(\\ensuremath\{\_\{|\\ensuremath\{\_|\\ensuremath\{\^{|\\ensuremath\{\^|\})//g;#remove \ensuremath{...}
4339: $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 4340: $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;
4341: $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;
4342: $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 4343: $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;
4344: $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;
4345: $garbage=~s/(\\hat{([^}]+)}|\\check{([^}]+)}|\\dot{([^}]+)}|\\breve{([^}]+)}|\\acute{([^}]+)}|\\ddot{([^}]+)}|\\grave{([^}]+)}|\\tilde{([^}]+)}|\\mathring{([^}]+)}|\\bar{([^}]+)}|\\vec{([^}]+)})/$1/g;
4346: #remove some other LaTeX command
4347: $garbage=~s|\\(\w+)\\|\\|g;
4348: $garbage=~s|\\(\w+)(\s*)|$2|g;
4349: $garbage=~s|\+|11|g;
1.184 sakharuk 4350: my $value=length($garbage);
4351: return $value;
4352: }
4353:
4354:
1.287 foxr 4355: # is_inside_of $tagstack $tag
4356: # This sub returns true if the current state of Xml processing
4357: # is inside of the tag.
4358: # Parameters:
4359: # tagstack - The tagstack from the parser.
4360: # tag - The tag (without the <>'s.).
4361: # Sample usage:
4362: # if (is_inside_of($tagstack "table")) {
4363: # # I'm in a table....
4364: # }
4365: sub is_inside_of {
4366: my ($tagstack, $tag) = @_;
4367: my @stack = @$tagstack;
4368: for (my $i = ($#stack - 1); $i >= 0; $i--) {
4369: if ($stack[$i] eq $tag) {
4370: return 1;
4371: }
4372: }
4373: return 0;
4374: }
1.184 sakharuk 4375:
1.94 sakharuk 4376:
1.1 sakharuk 4377: 1;
4378: __END__
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