Annotation of loncom/xml/londefdef.pm, revision 1.337
1.1 sakharuk 1: # The LearningOnline Network with CAPA
2: # Tags Default Definition Module
3: #
1.337 ! foxr 4: # $Id: londefdef.pm,v 1.336 2006/09/05 21:57:57 foxr Exp $
1.41 sakharuk 5: #
1.34 www 6: #
7: # Copyright Michigan State University Board of Trustees
8: #
9: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
10: #
11: # LON-CAPA is free software; you can redistribute it and/or modify
12: # it under the terms of the GNU General Public License as published by
13: # the Free Software Foundation; either version 2 of the License, or
14: # (at your option) any later version.
15: #
16: # LON-CAPA is distributed in the hope that it will be useful,
17: # but WITHOUT ANY WARRANTY; without even the implied warranty of
18: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19: # GNU General Public License for more details.
20: #
21: # You should have received a copy of the GNU General Public License
22: # along with LON-CAPA; if not, write to the Free Software
23: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24: #
25: # /home/httpd/html/adm/gpl.txt
26: #
27: # http://www.lon-capa.org/
1.156 sakharuk 28: ## Copyright for TtHfunc and TtMfunc by Ian Hutchinson.
1.34 www 29: # TtHfunc and TtMfunc (the "Code") may be compiled and linked into
30: # binary executable programs or libraries distributed by the
31: # Michigan State University (the "Licensee"), but any binaries so
32: # distributed are hereby licensed only for use in the context
33: # of a program or computational system for which the Licensee is the
34: # primary author or distributor, and which performs substantial
35: # additional tasks beyond the translation of (La)TeX into HTML.
36: # The C source of the Code may not be distributed by the Licensee
37: # to any other parties under any circumstances.
38: #
1.1 sakharuk 39:
1.2 albertel 40: package Apache::londefdef;
1.1 sakharuk 41:
1.267 albertel 42: use Apache::lonnet;
1.1 sakharuk 43: use strict;
1.124 sakharuk 44: use Apache::lonxml;
1.57 sakharuk 45: use Apache::File();
1.70 sakharuk 46: use Image::Magick;
1.118 www 47: use Apache::lonmenu();
48: use Apache::lonmeta();
1.187 albertel 49: use Apache::Constants qw(:common);
1.282 foxr 50: use File::Basename;
1.302 foxr 51: # use Data::Dumper;
1.160 sakharuk 52:
1.38 harris41 53: BEGIN {
1.15 sakharuk 54:
1.135 sakharuk 55: &Apache::lonxml::register('Apache::londefdef',('a','abbr','acronym','accessrule','address','allow','applet','area','b','base','basefont','bgo','bgsound','big','blink','blockquote','blankspace','body','br','button','caption','center','cite','code','col','colgroup','dd','del','dfn','dir','div','dl','dt','em','embed','externallink','fieldset','font','form','frame','frameset','h1','h2','h3','h4','h5','h6','head','hr','html','i','iframe','img','input','ins','insert','isindex','kbd','keygen','label','layer','legend','li','link','m','map','marquee','menu','meta','multicol','nobr','noembed','noframes','nolayer','noscript','object','ol','optgroup','option','output','p','param','pre','q','s','samp','select','server','small','spacer','span','strike','strong','sub','sup','table','tbody','td','textarea','tfoot','th','thead','title','tr','tt','tthoption','u','ul','var','wbr','hideweboutput'));
1.15 sakharuk 56:
1.188 albertel 57: }
58:
1.294 foxr 59: #
60: # Dumps all elements of the table structure.
61: # Need this 'cause evidently when given an array, Data::Dumper only seems
62: # to dump element 0.
63: #
1.302 foxr 64: #sub debug_dump_table {
65: # my $lastrow = $#Apache::londefdef::table;
66: # &Apache::lonnet::logthis("Dumping table: Last row index: $lastrow");
67: # my $row;
68: # for ($row =0; $row <= $lastrow; $row++ ) {
69: # my $text = Dumper($Apache::londefdef::table[$row]);
70: # &Apache::lonnet::logthis("table [ $row ]".$text);
71: # }
72: #}
1.188 albertel 73: sub initialize_londefdef {
74: $Apache::londefdef::TD_redirection=0;
75: @Apache::londefdef::table = ();
76: $Apache::londefdef::select=0;
1.243 albertel 77: undef(@Apache::londefdef::description);
78: @Apache::londefdef::DD=(0);
79: @Apache::londefdef::DT=(0);
1.244 albertel 80: @Apache::londefdef::seenDT=(0);
1.238 albertel 81: $Apache::londefdef::list_index=0;
1.327 albertel 82: undef($Apache::londefdef::head);
83: undef($Apache::londefdef::title);
1.3 sakharuk 84: }
1.1 sakharuk 85:
1.35 sakharuk 86: #======================= TAG SUBROUTINES =====================
1.8 sakharuk 87: #-- <output>
1.21 albertel 88: sub start_output {
1.122 albertel 89: my ($target) = @_;
90: if ($target eq 'meta') { $Apache::lonxml::metamode--; }
91: return '';
1.21 albertel 92: }
93: sub end_output {
1.122 albertel 94: my ($target) = @_;
95: if ($target eq 'meta') { $Apache::lonxml::metamode++; }
96: return '';
1.21 albertel 97: }
1.4 sakharuk 98: #-- <m> tag
1.33 albertel 99: sub start_m {
1.190 albertel 100: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 101: my $currentstring = '';
1.193 albertel 102: my $inside = &Apache::lonxml::get_all_text_unbalanced("/m",$parser);
1.191 albertel 103: if ($target eq 'web' || $target eq 'analyze') {
1.122 albertel 104: &Apache::lonxml::debug("M is starting with:$inside:");
105: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
106: if ($eval eq 'on') {
107: $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
108: #&Apache::lonxml::debug("M is evaulated to:$inside:");
109: }
1.317 albertel 110: my $tex = $inside;
1.276 albertel 111: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
112: $currentstring = &Apache::lontexconvert::converted(\$inside,$display);
1.122 albertel 113: if ($Apache::lontexconvert::errorstring) {
1.317 albertel 114: my $errormsg='<pre>'.&HTML::Entities::encode($Apache::lontexconvert::errorstring,'<>&"').'</pre> occured while attempting to convert this TeX: <pre>';
115: $tex = &HTML::Entities::encode($tex,'<>&"');
116: my ($linenumber) =
117: ($Apache::lontexconvert::errorstring =~ /Line (\d+)/);
118: if (defined($linenumber)) {
119: my @tex=split("\n",$tex);
120: $tex[$linenumber]='<b><font color="red">'.
121: $tex[$linenumber].'</font></b>';
122: $tex=join("\n",@tex);
123: }
124: &Apache::lonxml::warning($errormsg.$tex.'</pre>');
1.122 albertel 125: $Apache::lontexconvert::errorstring='';
126: }
127: #&Apache::lonxml::debug("M is ends with:$currentstring:");
1.178 albertel 128: $Apache::lonxml::post_evaluate=0;
1.122 albertel 129: } elsif ($target eq 'tex') {
1.190 albertel 130: $currentstring = $inside;
1.178 albertel 131: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
132: if ($eval eq 'on') {
133: $currentstring=&Apache::run::evaluate($currentstring,$safeeval,$$parstack[-1]);
134: }
1.122 albertel 135: if ($currentstring=~/^(\s*\\\\\s*)*$/) {$currentstring = ' \vskip 0 mm ';}
1.257 albertel 136: # detect simple math mode entry exits, and convert them
137: # to use \ensuremath
138: if ($currentstring=~/^\s*\$[^\$].*[^\$]\$\s*$/) {
1.293 albertel 139: $currentstring=~s/^(\s*)\$/$1/;
140: $currentstring=~s/\$(\s*)$/$1/;
1.257 albertel 141: $currentstring='\ensuremath{'.$currentstring.'}';
142: }
1.178 albertel 143: $Apache::lonxml::post_evaluate=0;
1.122 albertel 144: }
145: return $currentstring;
1.33 albertel 146: }
1.122 albertel 147:
1.33 albertel 148: sub end_m {
1.122 albertel 149: my ($target,$token) = @_;
150: my $currentstring = '';
1.204 albertel 151: if ($target eq 'tex') {
1.122 albertel 152: $currentstring = "";
153: }
154: return $currentstring;
1.33 albertel 155: }
1.110 albertel 156:
157: sub start_tthoption {
1.299 albertel 158: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 159: my $result;
1.325 albertel 160: if ($target eq 'web' || $target eq 'webgrade') {
1.299 albertel 161: my $inside = &Apache::lonxml::get_all_text("/tthoption",$parser,
162: $style);
1.122 albertel 163: $inside=~s/^\s*//;
1.267 albertel 164: if ($env{'browser.mathml'}) {
1.122 albertel 165: &tth::ttmoptions($inside);
166: } else {
167: &tth::tthoptions($inside);
168: }
169: }
170: return $result;
1.110 albertel 171: }
172:
173: sub end_tthoption {
1.122 albertel 174: my ($target,$token) = @_;
175: my $result;
176: return $result;
1.110 albertel 177: }
178:
1.181 sakharuk 179: #-- <html> tag (end tag optional)
1.100 albertel 180: sub start_html {
181: my ($target,$token) = @_;
182: my $currentstring = '';
1.269 albertel 183: if ($target eq 'web' || $target eq 'edit' || $target eq 'webgrade' ) {
1.327 albertel 184: # start_body() takes care of emitting the <html>
1.100 albertel 185: } elsif ($target eq 'tex') {
1.331 albertel 186: $currentstring .=
187: '\documentclass[letterpaper,twoside]{article}\raggedbottom';
1.267 albertel 188: if (($env{'form.latex_type'}=~'batchmode') ||
189: (!$env{'request.role.adv'})) {$currentstring .='\batchmode';}
1.217 sakharuk 190: $currentstring .= '\newcommand{\keephidden}[1]{}'.
191: '\renewcommand{\deg}{$^{\circ}$}'.
1.306 foxr 192: '\usepackage{multirow}'.
1.217 sakharuk 193: '\usepackage{longtable}'.
194: '\usepackage{textcomp}'.
195: '\usepackage{makeidx}'.
196: '\usepackage[dvips]{graphicx}'.
1.286 foxr 197: '\usepackage{wrapfig}'.
1.248 foxr 198: '\usepackage{picins}'.
1.217 sakharuk 199: '\usepackage{epsfig}'.
200: '\usepackage{calc}'.
201: '\usepackage{amsmath}'.
202: '\usepackage{amssymb}'.
203: '\usepackage{amsfonts}'.
204: '\usepackage{amsthm}'.
205: '\usepackage{amscd}'.
206: '\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}}'.
207: '\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 208: }
209: return $currentstring;
210: }
1.122 albertel 211:
212: sub end_html {
1.232 sakharuk 213: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 214: my $currentstring = '';
1.324 albertel 215: if ($target eq 'web' || $target eq 'webgrade') {
1.327 albertel 216: # end_body takes care of the </html>
1.122 albertel 217: }
218: return $currentstring;
219: }
220:
1.181 sakharuk 221: #-- <head> tag (end tag optional)
1.122 albertel 222: sub start_head {
223: my ($target,$token) = @_;
224: my $currentstring = '';
1.324 albertel 225: if ($target eq 'web' || $target eq 'webgrade') {
1.327 albertel 226: &Apache::lonxml::startredirection();
1.122 albertel 227: }
228: return $currentstring;
229: }
230:
231: sub end_head {
232: my ($target,$token) = @_;
233: my $currentstring = '';
1.324 albertel 234: if (($target eq 'web' && $env{'request.state'} eq 'published') ||
235: ($target eq 'webgrade' && $env{'request.state'} eq 'published')) {
1.327 albertel 236: # in case there is a </head> but no <head>
237: if ($Apache::lonxml::redirection) {
238: $Apache::londefdef::head = &Apache::lonxml::endredirection();
239: }
1.122 albertel 240: }
241: return $currentstring;
242: }
243:
1.181 sakharuk 244: #-- <map> tag (end tag required)
1.122 albertel 245: sub start_map {
246: my ($target,$token) = @_;
247: my $currentstring = '';
1.325 albertel 248: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 249: $currentstring = $token->[4];
250: }
251: return $currentstring;
252: }
253:
254: sub end_map {
255: my ($target,$token) = @_;
256: my $currentstring = '';
1.325 albertel 257: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 258: $currentstring = $token->[2];
259: }
260: return $currentstring;
261: }
262:
1.181 sakharuk 263: #-- <select> tag (end tag required)
1.122 albertel 264: sub start_select {
265: my ($target,$token) = @_;
266: my $currentstring = '';
1.325 albertel 267: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 268: $currentstring = $token->[4];
1.181 sakharuk 269: } elsif ($target eq 'tex') {
270: $Apache::londefdef::select=0;
271: }
1.122 albertel 272: return $currentstring;
273: }
274:
275: sub end_select {
276: my ($target,$token) = @_;
277: my $currentstring = '';
1.325 albertel 278: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 279: $currentstring = $token->[2];
280: }
281: return $currentstring;
282: }
283:
1.181 sakharuk 284: #-- <option> tag (end tag optional)
1.122 albertel 285: sub start_option {
1.181 sakharuk 286: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 287: my $currentstring = '';
1.325 albertel 288: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 289: $currentstring = $token->[4];
1.181 sakharuk 290: } elsif ($target eq 'tex') {
291: $Apache::londefdef::select++;
292: if ($Apache::londefdef::select == 1) {
293: $currentstring='\noindent\fbox{'.&Apache::lonxml::get_param('value',$parstack,$safeeval).'}\keephidden{';
294: } else {
295: $currentstring='\keephidden{';
296: }
297: }
1.122 albertel 298: return $currentstring;
299: }
300:
301: sub end_option {
302: my ($target,$token) = @_;
303: my $currentstring = '';
1.325 albertel 304: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 305: $currentstring = $token->[2];
1.181 sakharuk 306: } elsif ($target eq 'tex') {
307: $currentstring='}';
308: }
1.122 albertel 309: return $currentstring;
310: }
311:
1.181 sakharuk 312: #-- <input> tag (end tag forbidden)
1.122 albertel 313: sub start_input {
314: my ($target,$token) = @_;
315: my $currentstring = '';
1.325 albertel 316: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 317: $currentstring = $token->[4];
318: }
319: return $currentstring;
320: }
321:
322: sub end_input {
323: my ($target,$token) = @_;
324: my $currentstring = '';
1.325 albertel 325: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 326: $currentstring = $token->[2];
327: }
328: return $currentstring;
329: }
330:
1.181 sakharuk 331: #-- <textarea> tag (end tag required)
1.122 albertel 332: sub start_textarea {
333: my ($target,$token) = @_;
334: my $currentstring = '';
1.325 albertel 335: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 336: $currentstring = $token->[4];
337: }
338: return $currentstring;
339: }
340:
341: sub end_textarea {
342: my ($target,$token) = @_;
343: my $currentstring = '';
1.325 albertel 344: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 345: $currentstring = $token->[2];
346: }
347: return $currentstring;
348: }
349:
1.181 sakharuk 350: #-- <form> tag (end tag required)
1.122 albertel 351: sub start_form {
352: my ($target,$token) = @_;
353: my $currentstring = '';
1.325 albertel 354: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 355: $currentstring = $token->[4];
356: }
357: return $currentstring;
358: }
359:
360: sub end_form {
361: my ($target,$token) = @_;
362: my $currentstring = '';
1.325 albertel 363: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 364: $currentstring = $token->[2];
365: }
366: return $currentstring;
367: }
368:
1.181 sakharuk 369: #-- <title> tag (end tag required)
1.122 albertel 370: sub start_title {
1.327 albertel 371: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 372: my $currentstring = '';
1.324 albertel 373: if ($target eq 'web' || $target eq 'webgrade') {
1.327 albertel 374: $Apache::londefdef::title =
375: &Apache::lonxml::get_all_text('/title',$parser,$style);
1.122 albertel 376: } elsif ($target eq 'tex') {
1.166 sakharuk 377: $currentstring .= '\keephidden{Title of the document: '
1.122 albertel 378: }
379: if ($target eq 'meta') {
380: $currentstring='<title>';
1.185 albertel 381: &start_output($target);
1.122 albertel 382: }
383: return $currentstring;
384: }
385:
386: sub end_title {
387: my ($target,$token) = @_;
388: my $currentstring = '';
1.324 albertel 389: if ($target eq 'web' || $target eq 'webgrade') {
1.327 albertel 390: # start_title takes care of swallowing the title
1.122 albertel 391: } elsif ($target eq 'tex') {
392: $currentstring .= '}';
393: }
394: if ($target eq 'meta') {
1.185 albertel 395: &end_output($target);
1.122 albertel 396: $currentstring='</title>';
397: }
398: return $currentstring;
399: }
400:
1.181 sakharuk 401: #-- <meta> tag (end tag forbidden)
1.122 albertel 402: sub start_meta {
1.299 albertel 403: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 404: my $currentstring = '';
1.325 albertel 405: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 406: my $args='';
407: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
408: if ($args eq '') {
1.299 albertel 409: &Apache::lonxml::get_all_text("/meta",$parser,$style);
1.122 albertel 410: } else {
411: $currentstring = $token->[4];
1.1 sakharuk 412: }
1.135 sakharuk 413: } elsif ($target eq 'meta') {
1.122 albertel 414: unless (&Apache::lonxml::get_param
415: ('http-equiv',$parstack,$safeeval,undef,1)) {
416: my $name=$token->[2]->{'name'};
417: $name=~tr/A-Z/a-z/;
418: $name=~s/\s/\_/gs;
419: $name=~s/\W//gs;
420: if ($name) {
1.154 www 421: $currentstring='<'.$name;
422: my $display=&Apache::lonxml::get_param
423: ('display',$parstack,$safeeval,undef,1);
424: if ($display) {
425: $display=~s/\"/\'/g;
426: $currentstring.=' display="'.$display.'"';
427: }
428: $currentstring.='>'.
1.122 albertel 429: &Apache::lonxml::get_param
430: ('content',$parstack,$safeeval,undef,1).
1.135 sakharuk 431: '</'.$name.'>';
1.1 sakharuk 432: }
1.154 www 433: my $display=&Apache::lonxml::get_param
434: ('display',$parstack,$safeeval,undef,1);
435: if ($display) {
1.204 albertel 436: $display=&HTML::Entities::encode($display,'<>&"');
1.154 www 437: $currentstring.='<'.$name.'.display>'.$display.
438: '</'.$name.'.display>';
439: }
1.1 sakharuk 440: }
1.135 sakharuk 441: } elsif ($target eq 'tex') {
1.151 sakharuk 442: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
443: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
444: if ((not defined $content) && (not defined $name)) {
445: &Apache::lonxml::startredirection();
446: }
1.122 albertel 447: }
448: return $currentstring;
449: }
450:
451: sub end_meta {
1.165 albertel 452: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 453: my $currentstring = '';
1.325 albertel 454: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 455: my $args='';
456: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
457: if ($args ne '') {
1.121 www 458: $currentstring = $token->[4];
1.122 albertel 459: }
1.135 sakharuk 460: } elsif ($target eq 'tex') {
1.165 albertel 461: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
462: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
1.164 albertel 463: if ((not defined $content) && (not defined $name)) {
1.169 albertel 464: &Apache::lonxml::endredirection();
1.164 albertel 465: }
1.135 sakharuk 466: }
1.122 albertel 467: return $currentstring;
468: }
469:
1.121 www 470: # accessrule
1.122 albertel 471: sub start_accessrule {
1.299 albertel 472: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 473: my $currentstring = '';
474: my $eff=&Apache::lonxml::get_param
475: ('effect',$parstack,$safeeval,undef,1);
476: my $realm=&Apache::lonxml::get_param
477: ('realm',$parstack,$safeeval,undef,1);
1.123 www 478: my $role=&Apache::lonxml::get_param
479: ('role',$parstack,$safeeval,undef,1);
480: $realm=~s/\s+//g;
481: $realm=~s/\//\_/g;
482: $realm=~s/^\_//;
483: $realm=~s/\W/\;/g;
484: $role=~s/\s+//g;
485: $role=~s/\//\_/g;
486: $role=~s/\W/\;/g;
1.122 albertel 487: if ($target eq 'web') {
488: my $args='';
489: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
490: if ($args eq '') {
1.299 albertel 491: &Apache::lonxml::get_all_text("/accessrule",$parser,$style);
1.122 albertel 492: } else {
493: $currentstring = $token->[4];
494: }
495: }
496: if ($target eq 'meta') {
1.123 www 497: $currentstring='<rule>'.$eff.':'.$realm.':'.$role.'</rule>';
1.122 albertel 498: }
499: return $currentstring;
500: }
501:
502: sub end_accessrule {
503: my ($target,$token,$tagstack,$parstack,$parser) = @_;
504: my $currentstring = '';
505: if ($target eq 'web') {
506: my $args='';
507: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
508: if ($args ne '') {
509: $currentstring = $token->[4];
510: }
511: }
512: return $currentstring;
513: }
514:
1.181 sakharuk 515: #-- <body> tag (end tag required)
1.122 albertel 516: sub start_body {
517: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
518: my $currentstring = '';
1.244 albertel 519:
1.324 albertel 520: if ($target eq 'web' || $target eq 'webgrade') {
1.170 albertel 521: if ($Apache::lonhomework::parsing_a_problem) {
522: &Apache::lonxml::warning("<body> tag found inside of <problem> tag this can cause problems.");
523: return '';
524: }
1.122 albertel 525:
1.327 albertel 526: if (&is_inside_of($tagstack, "head")) {
527: &end_head(@_);
1.122 albertel 528: }
1.327 albertel 529: $currentstring =
530: &Apache::loncommon::start_page($Apache::londefdef::title,
531: $Apache::londefdef::head,
532: {'add_entries' => $token->[2],
533: 'no_title' => 1,
534: 'force_register' => 1});
535:
1.267 albertel 536: if ($env{'request.state'} ne 'published') {
1.330 albertel 537: $currentstring.=&Apache::lonmenu::constspaceform();
1.122 albertel 538: $currentstring.=(<<EDITBUTTON);
1.278 www 539: <form method="post">
540: <input type="submit" name="editmode" accesskey="e" value="Edit" />
541: </form>
1.327 albertel 542: <br />
1.40 albertel 543: EDITBUTTON
1.1 sakharuk 544: }
1.201 albertel 545: $currentstring.=&Apache::lonxml::message_location();
1.122 albertel 546: } elsif ($target eq 'tex') {
547: $currentstring = '\begin{document}';
548: }
549: return $currentstring;
550: }
551:
552: sub end_body {
1.259 albertel 553: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 554: my $currentstring = &end_p(); # Close off unclosed <p>
1.324 albertel 555: if ($target eq 'web' || $target eq 'webgrade') {
1.327 albertel 556: $currentstring .= &Apache::loncommon::end_page({'discussion' => 1});
1.122 albertel 557: } elsif ($target eq 'tex') {
1.277 foxr 558: $currentstring .= '\strut\newline\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\newline\noindent \end{document}';
1.122 albertel 559: }
560: return $currentstring;
561: }
562:
1.309 albertel 563: # \begin{center} causes a new paragprah spacing that looks odd inside
1.337 ! foxr 564: # of a table cell. Same at the end of a \center but with a slightly
! 565: # larger space .. hence center_correction and center_end_correction.
! 566: #
! 567: sub center_correction { return '\vspace*{-6 mm}'; }
! 568: sub center_end_correction { return '\vspace*{-7 mm}'; }
! 569:
1.181 sakharuk 570: #-- <center> tag (end tag required)
1.122 albertel 571: sub start_center {
1.309 albertel 572: my ($target,$token,$tagstack) = @_;
1.279 foxr 573: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 574: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 575: $currentstring .= $token->[4];
1.122 albertel 576: } elsif ($target eq 'tex') {
1.309 albertel 577: if (&is_inside_of($tagstack, "table")) {
578: $currentstring .= ¢er_correction();
579: }
1.277 foxr 580: $currentstring .= '\begin{center}';
1.144 sakharuk 581: }
1.122 albertel 582: return $currentstring;
583: }
584:
585: sub end_center {
1.309 albertel 586: my ($target,$token,$tagstack) = @_;
1.122 albertel 587: my $currentstring = '';
1.325 albertel 588: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 589: $currentstring = $token->[2];
590: } elsif ($target eq 'tex') {
591: $currentstring = '\end{center}';
1.337 ! foxr 592: if (&is_inside_of($tagstack, "table")) {
! 593: $currentstring .= ¢er_end_correction();
! 594: }
1.144 sakharuk 595: }
1.122 albertel 596: return $currentstring;
597: }
598:
1.181 sakharuk 599: #-- <b> tag (end tag required)
1.279 foxr 600: # NOTE: In TeX mode disables internal <p>
1.122 albertel 601: sub start_b {
602: my ($target,$token) = @_;
603: my $currentstring = '';
1.325 albertel 604: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 605: $currentstring = $token->[4];
606: } elsif ($target eq 'tex') {
1.279 foxr 607: &disable_para();
608: $currentstring .= '\textbf{';
1.122 albertel 609: }
610: return $currentstring;
611: }
612:
613: sub end_b {
614: my ($target,$token) = @_;
615: my $currentstring = '';
1.325 albertel 616: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 617: $currentstring = $token->[2];
618: } elsif ($target eq 'tex') {
1.279 foxr 619: &enable_para();
620: $currentstring = '}';
1.122 albertel 621: }
622: return $currentstring;
623: }
1.35 sakharuk 624:
1.181 sakharuk 625: #-- <strong> tag (end tag required)
1.279 foxr 626: # NOTE: in TeX mode disables internal <p>
1.122 albertel 627: sub start_strong {
628: my ($target,$token) = @_;
629: my $currentstring = '';
1.325 albertel 630: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 631: $currentstring = $token->[4];
632: } elsif ($target eq 'tex') {
1.279 foxr 633: &disable_para();
1.122 albertel 634: $currentstring = '\textbf{';
635: }
636: return $currentstring;
637: }
638:
639: sub end_strong {
640: my ($target,$token) = @_;
641: my $currentstring = '';
1.325 albertel 642: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 643: $currentstring = $token->[2];
644: } elsif ($target eq 'tex') {
1.279 foxr 645: &enable_para();
1.122 albertel 646: $currentstring = '}';
1.144 sakharuk 647: }
1.122 albertel 648: return $currentstring;
649: }
650:
1.181 sakharuk 651: #-- <h1> tag (end tag required)
1.122 albertel 652: sub start_h1 {
1.125 sakharuk 653: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 654: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 655: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 656: $currentstring .= $token->[4];
657: } elsif ($target eq 'tex') {
1.125 sakharuk 658: my $pre;
1.199 albertel 659: my $align=lc(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1));
1.212 sakharuk 660: if ($align eq 'center') {
1.125 sakharuk 661: $pre='\begin{center}';
662: } elsif ($align eq 'left') {
663: $pre='\rlap{';
664: } elsif ($align eq 'right') {
665: $pre=' \hfill \llap{';
666: }
667: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
668: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 669: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 670: } elsif ($target eq 'meta') {
1.277 foxr 671: $currentstring.='<subject>';
1.185 albertel 672: &start_output($target);
1.122 albertel 673: }
674: return $currentstring;
675: }
676:
677: sub end_h1 {
1.125 sakharuk 678: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 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') {
1.212 sakharuk 683: my $post='\vskip 0 mm ';
1.125 sakharuk 684: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 685: if ($align eq 'center') {
1.125 sakharuk 686: $post='\end{center}';
687: } elsif ($align eq 'left') {
688: $post='} \hfill'.'\vskip 0 mm ';
689: } elsif ($align eq 'right') {
690: $post='}'.'\vskip 0 mm ';
691: }
692: $currentstring .= '}}'.$post;
1.122 albertel 693: } elsif ($target eq 'meta') {
1.185 albertel 694: &end_output($target);
1.122 albertel 695: $currentstring='</subject>';
696: }
697: return $currentstring;
698: }
699:
1.35 sakharuk 700: #-- <h2> tag
1.122 albertel 701: sub start_h2 {
1.125 sakharuk 702: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 703: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 704: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 705: $currentstring .= $token->[4];
706: } elsif ($target eq 'tex') {
1.125 sakharuk 707: my $pre;
708: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 709: if ($align eq 'center') {
1.125 sakharuk 710: $pre='\begin{center}';
711: } elsif ($align eq 'left') {
712: $pre='\rlap{';
713: } elsif ($align eq 'right') {
714: $pre=' \hfill \llap{';
715: }
716: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
717: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 718: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 719: }
720: return $currentstring;
721: }
722:
723: sub end_h2 {
1.125 sakharuk 724: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 725: my $currentstring = '';
1.325 albertel 726: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 727: $currentstring .= $token->[2];
728: } elsif ($target eq 'tex') {
1.212 sakharuk 729: my $post='\vskip 0 mm ';
1.125 sakharuk 730: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 731: if ($align eq 'center') {
1.125 sakharuk 732: $post='\end{center}';
733: } elsif ($align eq 'left') {
734: $post='} \hfill'.'\vskip 0 mm ';
735: } elsif ($align eq 'right') {
736: $post='}'.'\vskip 0 mm ';
737: }
738: $currentstring .= '}}'.$post;
1.122 albertel 739: }
740: return $currentstring;
741: }
742:
1.35 sakharuk 743: #-- <h3> tag
1.122 albertel 744: sub start_h3 {
1.125 sakharuk 745: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 746: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 747: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 748: $currentstring .= $token->[4];
749: } elsif ($target eq 'tex') {
1.125 sakharuk 750: my $pre;
751: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 752: if ($align eq 'center') {
1.125 sakharuk 753: $pre='\begin{center}';
754: } elsif ($align eq 'left') {
755: $pre='\rlap{';
756: } elsif ($align eq 'right') {
757: $pre=' \hfill \llap{';
758: }
759: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
760: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 761: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 762: }
763: return $currentstring;
764: }
765:
766: sub end_h3 {
1.125 sakharuk 767: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 768: my $currentstring = '';
1.325 albertel 769: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 770: $currentstring .= $token->[2];
771: } elsif ($target eq 'tex') {
1.212 sakharuk 772: my $post='\vskip 0 mm ';
1.125 sakharuk 773: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 774: if ($align eq 'center') {
1.125 sakharuk 775: $post='\end{center}';
776: } elsif ($align eq 'left') {
777: $post='} \hfill'.'\vskip 0 mm ';
778: } elsif ($align eq 'right') {
779: $post='}'.'\vskip 0 mm ';
780: }
781: $currentstring .= '}}'.$post;
1.122 albertel 782: }
783: return $currentstring;
784: }
785:
1.35 sakharuk 786: #-- <h4> tag
1.122 albertel 787: sub start_h4 {
1.125 sakharuk 788: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 789: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 790: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 791: $currentstring .= $token->[4];
792: } elsif ($target eq 'tex') {
1.125 sakharuk 793: my $pre;
794: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 795: if ($align eq 'center') {
1.125 sakharuk 796: $pre='\begin{center}';
797: } elsif ($align eq 'left') {
798: $pre='\rlap{';
799: } elsif ($align eq 'right') {
800: $pre=' \hfill \llap{';
801: }
802: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
803: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 804: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 805: }
806: return $currentstring;
807: }
808:
809: sub end_h4 {
1.125 sakharuk 810: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 811: my $currentstring = '';
1.325 albertel 812: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 813: $currentstring .= $token->[2];
814: } elsif ($target eq 'tex') {
1.212 sakharuk 815: my $post='\vskip 0 mm ';
1.125 sakharuk 816: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 817: if ($align eq 'center') {
1.125 sakharuk 818: $post='\end{center}';
819: } elsif ($align eq 'left') {
820: $post='} \hfill'.'\vskip 0 mm ';
821: } elsif ($align eq 'right') {
822: $post='}'.'\vskip 0 mm ';
823: }
824: $currentstring .= '}}'.$post;
1.122 albertel 825: }
826: return $currentstring;
827: }
828:
1.35 sakharuk 829: #-- <h5> tag
1.122 albertel 830: sub start_h5 {
1.125 sakharuk 831: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 832: my $currentstring = &end_p(); # Close off any prior paras.
1.325 albertel 833: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 834: $currentstring .= $token->[4];
835: } elsif ($target eq 'tex') {
1.125 sakharuk 836: my $pre;
837: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 838: if ($align eq 'center') {
1.125 sakharuk 839: $pre='\begin{center}';
840: } elsif ($align eq 'left') {
841: $pre='\rlap{';
842: } elsif ($align eq 'right') {
843: $pre=' \hfill \llap{';
844: }
845: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
846: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 847: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 848: }
849: return $currentstring;
850: }
851:
852: sub end_h5 {
1.125 sakharuk 853: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 854: my $currentstring = '';
1.325 albertel 855: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 856: $currentstring .= $token->[2];
857: } elsif ($target eq 'tex') {
1.212 sakharuk 858: my $post='\vskip 0 mm ';
1.125 sakharuk 859: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 860: if ($align eq 'center') {
1.125 sakharuk 861: $post='\end{center}';
862: } elsif ($align eq 'left') {
863: $post='} \hfill'.'\vskip 0 mm ';
864: } elsif ($align eq 'right') {
865: $post='}'.'\vskip 0 mm ';
866: }
867: $currentstring .= '}}'.$post;
1.122 albertel 868: }
869: return $currentstring;
870: }
871:
1.35 sakharuk 872: #-- <h6> tag
1.122 albertel 873: sub start_h6 {
1.125 sakharuk 874: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 875: my $currentstring = &end_p(); # Close off any prior paras.
1.325 albertel 876: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 877: $currentstring .= $token->[4];
878: } elsif ($target eq 'tex') {
1.125 sakharuk 879: my $pre;
880: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 881: if ($align eq 'center') {
1.125 sakharuk 882: $pre='\begin{center}';
883: } elsif ($align eq 'left') {
884: $pre='\rlap{';
885: } elsif ($align eq 'right') {
886: $pre=' \hfill \llap{';
887: }
888: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
889: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 890: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 891: }
892: return $currentstring;
893: }
894:
895: sub end_h6 {
1.125 sakharuk 896: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 897: my $currentstring = '';
1.325 albertel 898: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 899: $currentstring .= $token->[2];
900: } elsif ($target eq 'tex') {
1.212 sakharuk 901: my $post='\vskip 0 mm ';
1.125 sakharuk 902: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 903: if ($align eq 'center') {
1.125 sakharuk 904: $post='\end{center}';
905: } elsif ($align eq 'left') {
906: $post='} \hfill'.'\vskip 0 mm ';
907: } elsif ($align eq 'right') {
908: $post='}'.'\vskip 0 mm ';
909: }
910: $currentstring .= '}}'.$post;
1.122 albertel 911: }
912: return $currentstring;
913: }
914:
1.181 sakharuk 915: #--- <cite> tag (end tag required)
1.122 albertel 916: sub start_cite {
917: my ($target,$token) = @_;
918: my $currentstring = '';
1.325 albertel 919: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 920: $currentstring .= $token->[4];
921: } elsif ($target eq 'tex') {
1.179 sakharuk 922: $currentstring .= '\textit{';
1.144 sakharuk 923: }
1.122 albertel 924: return $currentstring;
925: }
926:
927: sub end_cite {
928: my ($target,$token) = @_;
929: my $currentstring = '';
1.325 albertel 930: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 931: $currentstring .= $token->[2];
932: } elsif ($target eq 'tex') {
1.179 sakharuk 933: $currentstring .= '}';
1.144 sakharuk 934: }
1.122 albertel 935: return $currentstring;
936: }
937:
1.181 sakharuk 938: #-- <i> tag (end tag required)
1.122 albertel 939: sub start_i {
940: my ($target,$token) = @_;
941: my $currentstring = '';
1.325 albertel 942: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 943: $currentstring .= $token->[4];
944: } elsif ($target eq 'tex') {
945: $currentstring .= '\textit{';
1.144 sakharuk 946: }
1.122 albertel 947: return $currentstring;
948: }
949:
950: sub end_i {
951: my ($target,$token) = @_;
952: my $currentstring = '';
1.325 albertel 953: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 954: $currentstring .= $token->[2];
955: } elsif ($target eq 'tex') {
956: $currentstring .= '}';
957: }
958: return $currentstring;
959: }
960:
1.181 sakharuk 961: #-- <address> tag (end tag required)
1.122 albertel 962: sub start_address {
963: my ($target,$token) = @_;
964: my $currentstring = '';
1.325 albertel 965: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 966: $currentstring .= $token->[4];
967: } elsif ($target eq 'tex') {
1.179 sakharuk 968: $currentstring .= '\textit{';
1.144 sakharuk 969: }
1.122 albertel 970: return $currentstring;
971: }
972:
973: sub end_address {
974: my ($target,$token) = @_;
975: my $currentstring = '';
1.325 albertel 976: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 977: $currentstring .= $token->[2];
978: } elsif ($target eq 'tex') {
1.179 sakharuk 979: $currentstring .= '}';
1.122 albertel 980: }
981: return $currentstring;
982: }
983:
1.181 sakharuk 984: #-- <dfn> tag (end tag required)
1.122 albertel 985: sub start_dfn {
986: my ($target,$token) = @_;
987: my $currentstring = '';
1.325 albertel 988: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 989: $currentstring .= $token->[4];
990: } elsif ($target eq 'tex') {
1.179 sakharuk 991: $currentstring .= '\textit{';
1.122 albertel 992: }
993: return $currentstring;
994: }
995:
996: sub end_dfn {
997: my ($target,$token) = @_;
998: my $currentstring = '';
1.325 albertel 999: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1000: $currentstring .= $token->[2];
1001: } elsif ($target eq 'tex') {
1.179 sakharuk 1002: $currentstring .= '}';
1.144 sakharuk 1003: }
1.122 albertel 1004: return $currentstring;
1005: }
1006:
1.181 sakharuk 1007: #-- <tt> tag (end tag required)
1.122 albertel 1008: sub start_tt {
1009: my ($target,$token) = @_;
1010: my $currentstring = '';
1.325 albertel 1011: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1012: $currentstring .= $token->[4];
1013: } elsif ($target eq 'tex') {
1014: $currentstring .= '\texttt{';
1.144 sakharuk 1015: }
1.122 albertel 1016: return $currentstring;
1017: }
1018:
1019: sub end_tt {
1020: my ($target,$token) = @_;
1021: my $currentstring = '';
1.325 albertel 1022: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1023: $currentstring .= $token->[2];
1024: } elsif ($target eq 'tex') {
1025: $currentstring .= '}';
1026: }
1027: return $currentstring;
1028: }
1029:
1.181 sakharuk 1030: #-- <kbd> tag (end tag required)
1.122 albertel 1031: sub start_kbd {
1032: my ($target,$token) = @_;
1033: my $currentstring = '';
1.325 albertel 1034: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1035: $currentstring .= $token->[4];
1036: } elsif ($target eq 'tex') {
1.179 sakharuk 1037: $currentstring .= '\texttt{';
1.144 sakharuk 1038: }
1.122 albertel 1039: return $currentstring;
1040: }
1041:
1042: sub end_kbd {
1043: my ($target,$token) = @_;
1044: my $currentstring = '';
1.325 albertel 1045: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1046: $currentstring .= $token->[2];
1047: } elsif ($target eq 'tex') {
1.179 sakharuk 1048: $currentstring .= '}';
1.144 sakharuk 1049: }
1.122 albertel 1050: return $currentstring;
1051: }
1052:
1.181 sakharuk 1053: #-- <code> tag (end tag required)
1.122 albertel 1054: sub start_code {
1055: my ($target,$token) = @_;
1056: my $currentstring = '';
1.325 albertel 1057: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1058: $currentstring .= $token->[4];
1059: } elsif ($target eq 'tex') {
1060: $currentstring .= '\texttt{';
1061: }
1062: return $currentstring;
1063: }
1064:
1065: sub end_code {
1066: my ($target,$token) = @_;
1067: my $currentstring = '';
1.325 albertel 1068: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1069: $currentstring .= $token->[2];
1070: } elsif ($target eq 'tex') {
1071: $currentstring .= '}';
1072: }
1073: return $currentstring;
1074: }
1075:
1.181 sakharuk 1076: #-- <em> tag (end tag required)
1.122 albertel 1077: sub start_em {
1078: my ($target,$token) = @_;
1079: my $currentstring = '';
1.325 albertel 1080: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1081: $currentstring .= $token->[4];
1082: } elsif ($target eq 'tex') {
1083: $currentstring .= '\emph{';
1.144 sakharuk 1084: }
1.122 albertel 1085: return $currentstring;
1086: }
1087:
1088: sub end_em {
1089: my ($target,$token) = @_;
1090: my $currentstring = '';
1.325 albertel 1091: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1092: $currentstring .= $token->[2];
1093: } elsif ($target eq 'tex') {
1094: $currentstring .= '}';
1.144 sakharuk 1095: }
1.122 albertel 1096: return $currentstring;
1097: }
1098:
1.181 sakharuk 1099: #-- <q> tag (end tag required)
1.122 albertel 1100: sub start_q {
1101: my ($target,$token) = @_;
1102: my $currentstring = '';
1.325 albertel 1103: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1104: $currentstring .= $token->[4];
1105: } elsif ($target eq 'tex') {
1.179 sakharuk 1106: $currentstring .= '\emph{';
1.122 albertel 1107: }
1108: return $currentstring;
1109: }
1110:
1111: sub end_q {
1112: my ($target,$token) = @_;
1113: my $currentstring = '';
1.325 albertel 1114: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1115: $currentstring .= $token->[2];
1116: } elsif ($target eq 'tex') {
1.179 sakharuk 1117: $currentstring .= '}';
1.144 sakharuk 1118: }
1.122 albertel 1119: return $currentstring;
1120: }
1121:
1.277 foxr 1122: # <p> is a bit strange since it does not require a closing </p>
1123: # However in latex, we must often output closing stuff to end
1124: # environments and {}'s etc. Therefore we do all the work
1125: # of figuring out the ending strings in the start tag processing,
1126: # and provide a mechanism to output the stop text external
1127: # to tag processing.
1128: #
1129: {
1130:
1131: my $closing_string = ''; # String required to close <p>
1132:
1.279 foxr 1133: # Some tags are <p> fragile meaning that <p> inside of them
1134: # does not work within TeX mode. This is managed via the
1135: # counter below:
1136: #
1137:
1138: my $para_disabled = 0;
1139:
1140: sub disable_para {
1141: $para_disabled++;
1142: }
1143: sub enable_para {
1144: $para_disabled--;
1145: }
1146:
1147:
1.181 sakharuk 1148: #-- <p> tag (end tag optional)
1.198 sakharuk 1149: #optional attribute - align="center|left|right"
1.122 albertel 1150: sub start_p {
1.157 sakharuk 1151: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1152: my $currentstring = '';
1.325 albertel 1153: if ($target eq 'web' || $target eq 'webgrade') {
1.279 foxr 1154: $currentstring .= &end_p(); # close off prior para if in progress.
1.122 albertel 1155: $currentstring .= $token->[4];
1.279 foxr 1156: if (! ($currentstring =~ /\//)) {
1157: $closing_string = '</p>'; # Deal correctly with <p /> e.g.
1158: }
1159: } elsif ($target eq 'tex' && !$para_disabled) {
1.313 foxr 1160:
1.279 foxr 1161: $currentstring .= &end_p(); # close off prior para if in progress.
1.198 sakharuk 1162: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1163: if ($align eq 'center') {
1.333 albertel 1164: $currentstring .='\begin{center}\par ';
1.277 foxr 1165: $closing_string = '\end{center}';
1.309 albertel 1166: if (&is_inside_of($tagstack, "table")) {
1167: $currentstring = ¢er_correction().$currentstring;
1168: }
1.198 sakharuk 1169: } elsif ($align eq 'right') {
1.323 foxr 1170: $currentstring.="\n".'{\flushright ';
1171: # $currentstring.='\makebox['.$env{'form.textwidth'}.']{\hfill\llap{';
1172: $closing_string= "}\n";
1.198 sakharuk 1173: } elsif ($align eq 'left') {
1.323 foxr 1174: $currentstring.= "\n".'{\flushleft ';
1175: # $currentstring.='\noindent\makebox['.$env{'form.textwidth'}.']{{';
1176: $closing_string = "}\n";
1.216 matthew 1177: } else {
1.277 foxr 1178: $currentstring.='\par ';
1.313 foxr 1179: if (&is_inside_of($tagstack, 'table')) {
1.315 foxr 1180: $closing_string = '\vskip 0pt'; # Seems to be consistent with <p> in tables.
1.313 foxr 1181: } else {
1182: $closing_string = '\strut\\\\\strut ';
1183: }
1.216 matthew 1184: }
1.277 foxr 1185:
1.144 sakharuk 1186: }
1.122 albertel 1187: return $currentstring;
1188: }
1.277 foxr 1189: #
1190: # End paragraph processing just requires that we output the
1191: # closing string that was saved and blank it.
1192: sub end_p {
1.279 foxr 1193: # Note only 'tex' mode uses disable_para and enable_para
1194: # so we don't need to know the target in the check below:
1195:
1196: if (!$para_disabled) {
1197: my $current_string = $closing_string;
1198: $closing_string = ''; # Not in a para anymore.
1199: return $current_string;
1200: } else {
1201: return '';
1202: }
1.122 albertel 1203:
1204: }
1.277 foxr 1205: }
1.181 sakharuk 1206: #-- <br> tag (end tag forbidden)
1.122 albertel 1207: sub start_br {
1208: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1209: my $currentstring = '';
1.325 albertel 1210: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1211: $currentstring .= $token->[4];
1212: } elsif ($target eq 'tex') {
1.227 sakharuk 1213: my @tempo=@$tagstack;
1.229 sakharuk 1214: my $signal=0;
1.287 foxr 1215: # Not going to factor this to is_inside_of since that would require
1216: # multiple stack traversals.
1217: #
1.227 sakharuk 1218: for (my $i=$#tempo;$i>=0;$i--) {
1219: if (($tempo[$i] eq 'b') || ($tempo[$i] eq 'strong') ||
1.334 albertel 1220: ($tempo[$i] eq 'ol') || ($tempo[$i] eq 'ul')) {
1.229 sakharuk 1221: $signal=1;
1.334 albertel 1222: }
1223: if (($tempo[$i] eq 'td') || ($tempo[$i] eq 'th')) {
1.336 foxr 1224: $signal = 1;
1.227 sakharuk 1225: }
1226: }
1.334 albertel 1227: if ($signal eq 1) {
1.219 sakharuk 1228: $currentstring .= ' \vskip 0 mm ';
1229: } elsif ($$tagstack[-2] ne 'sub' && $$tagstack[-2] ne 'sup') {
1230: $currentstring .= '\strut \\\\ \strut ';
1.1 sakharuk 1231: }
1.144 sakharuk 1232: }
1.122 albertel 1233: return $currentstring;
1234: }
1235:
1236: sub end_br {
1237: my ($target,$token) = @_;
1238: my $currentstring = '';
1.325 albertel 1239: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1240: $currentstring .= $token->[2];
1241: }
1242: return $currentstring;
1243: }
1244:
1.181 sakharuk 1245: #-- <big> tag (end tag required)
1.122 albertel 1246: sub start_big {
1247: my ($target,$token) = @_;
1248: my $currentstring = '';
1.325 albertel 1249: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1250: $currentstring .= $token->[4];
1251: } elsif ($target eq 'tex') {
1.137 sakharuk 1252: $currentstring .= '{\large ';
1.144 sakharuk 1253: }
1.122 albertel 1254: return $currentstring;
1255: }
1256:
1257: sub end_big {
1258: my ($target,$token) = @_;
1259: my $currentstring = '';
1.325 albertel 1260: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1261: $currentstring .= $token->[2];
1262: } elsif ($target eq 'tex') {
1263: $currentstring .= '}';
1264: }
1265: return $currentstring;
1266: }
1267:
1.181 sakharuk 1268: #-- <small> tag (end tag required)
1.122 albertel 1269: sub start_small {
1270: my ($target,$token) = @_;
1271: my $currentstring = '';
1.325 albertel 1272: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1273: $currentstring .= $token->[4];
1274: } elsif ($target eq 'tex') {
1275: $currentstring .= '{\footnotesize ';
1.144 sakharuk 1276: }
1.122 albertel 1277: return $currentstring;
1278: }
1279:
1280: sub end_small {
1281: my ($target,$token) = @_;
1282: my $currentstring = '';
1.325 albertel 1283: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1284: $currentstring .= $token->[2];
1285: } elsif ($target eq 'tex') {
1286: $currentstring .= '}';
1287: }
1288: return $currentstring;
1289: }
1290:
1.181 sakharuk 1291: #-- <basefont> tag (end tag forbidden)
1.122 albertel 1292: sub start_basefont {
1.126 sakharuk 1293: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.122 albertel 1294: my $currentstring = '';
1.325 albertel 1295: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1296: $currentstring = $token->[4];
1.126 sakharuk 1297: } elsif ($target eq 'tex') {
1298: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1299: if (defined $basesize) {
1300: $currentstring = '{\\'.$basesize.' ';
1301: }
1302: }
1.122 albertel 1303: return $currentstring;
1304: }
1305:
1306: sub end_basefont {
1.126 sakharuk 1307: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1308: my $currentstring = '';
1.325 albertel 1309: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1310: $currentstring = $token->[4];
1.126 sakharuk 1311: } elsif ($target eq 'tex') {
1312: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1313: if (defined $basesize) {
1314: $currentstring = '}';
1315: }
1316: }
1.122 albertel 1317: return $currentstring;
1318: }
1319:
1.181 sakharuk 1320: #-- <font> tag (end tag required)
1.122 albertel 1321: sub start_font {
1322: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1323: my $currentstring = '';
1.325 albertel 1324: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1325: my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
1.204 albertel 1326: if ($face!~/symbol/i) {
1.267 albertel 1327: if (($env{'browser.fontenhance'} eq 'on') ||
1328: ($env{'browser.blackwhite'} eq 'on')) { return ''; }
1.155 www 1329: }
1.122 albertel 1330: $currentstring = $token->[4];
1.126 sakharuk 1331: } elsif ($target eq 'tex') {
1332: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1333: if (defined $fontsize) {
1334: $currentstring = '{\\'.$fontsize.' ';
1335: }
1336: }
1.122 albertel 1337: return $currentstring;
1338: }
1339:
1340: sub end_font {
1341: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1342: my $currentstring = '';
1.325 albertel 1343: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1344: $currentstring = $token->[2];
1.126 sakharuk 1345: } elsif ($target eq 'tex') {
1346: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1347: if (defined $fontsize) {
1348: $currentstring = '}';
1349: }
1350: }
1.122 albertel 1351: return $currentstring;
1352: }
1353:
1.181 sakharuk 1354: #-- <strike> tag (end tag required)
1.122 albertel 1355: sub start_strike {
1356: my ($target,$token) = @_;
1357: my $currentstring = '';
1.325 albertel 1358: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1359: $currentstring .= $token->[4];
1360: } elsif ($target eq 'tex') {
1361: &Apache::lonxml::startredirection();
1362: }
1363: return $currentstring;
1364: }
1365:
1366: sub end_strike {
1367: my ($target,$token) = @_;
1368: my $currentstring = '';
1.325 albertel 1369: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1370: $currentstring .= $token->[2];
1371: } elsif ($target eq 'tex') {
1372: $currentstring=&Apache::lonxml::endredirection();
1373: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1374: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1375: $currentstring=~s/(\S)\s*$/$1\}/;
1376: }
1377: return $currentstring;
1378: }
1379:
1.181 sakharuk 1380: #-- <s> tag (end tag required)
1.122 albertel 1381: sub start_s {
1382: my ($target,$token) = @_;
1383: my $currentstring = '';
1.325 albertel 1384: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1385: $currentstring .= $token->[4];
1386: } elsif ($target eq 'tex') {
1387: &Apache::lonxml::startredirection();
1388: }
1389: return $currentstring;
1390: }
1391:
1392: sub end_s {
1393: my ($target,$token) = @_;
1394: my $currentstring = '';
1.325 albertel 1395: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1396: $currentstring .= $token->[2];
1397: } elsif ($target eq 'tex') {
1398: $currentstring=&Apache::lonxml::endredirection();
1399: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1400: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1401: $currentstring=~s/(\S)\s*$/$1\}/;
1402: }
1403: return $currentstring;
1404: }
1405:
1.181 sakharuk 1406: #-- <sub> tag (end tag required)
1.122 albertel 1407: sub start_sub {
1408: my ($target,$token) = @_;
1409: my $currentstring = '';
1.325 albertel 1410: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1411: $currentstring .= $token->[4];
1412: } elsif ($target eq 'tex') {
1.202 sakharuk 1413: $currentstring .= '\ensuremath{_{';
1.122 albertel 1414: }
1415: return $currentstring;
1416: }
1417:
1418: sub end_sub {
1419: my ($target,$token) = @_;
1420: my $currentstring = '';
1.325 albertel 1421: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1422: $currentstring .= $token->[2];
1423: } elsif ($target eq 'tex') {
1.202 sakharuk 1424: $currentstring .= '}}';
1.122 albertel 1425: }
1426: return $currentstring;
1427: }
1428:
1.181 sakharuk 1429: #-- <sup> tag (end tag required)
1.122 albertel 1430: sub start_sup {
1431: my ($target,$token) = @_;
1432: my $currentstring = '';
1.325 albertel 1433: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1434: $currentstring .= $token->[4];
1435: } elsif ($target eq 'tex') {
1.202 sakharuk 1436: $currentstring .= '\ensuremath{^{';
1.122 albertel 1437: }
1438: return $currentstring;
1439: }
1440:
1441: sub end_sup {
1442: my ($target,$token) = @_;
1443: my $currentstring = '';
1.325 albertel 1444: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1445: $currentstring .= $token->[2];
1446: } elsif ($target eq 'tex') {
1.202 sakharuk 1447: $currentstring .= '}}';
1.122 albertel 1448: }
1449: return $currentstring;
1450: }
1451:
1.181 sakharuk 1452: #-- <hr> tag (end tag forbidden)
1.122 albertel 1453: sub start_hr {
1.124 sakharuk 1454: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1455: my $currentstring = &end_p(); # End enclosing para.
1.325 albertel 1456: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1457: $currentstring .= $token->[4];
1458: } elsif ($target eq 'tex') {
1.149 sakharuk 1459: my $LaTeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1.124 sakharuk 1460: if (defined $LaTeXwidth) {
1461: if ($LaTeXwidth=~/^%/) {
1462: substr($LaTeXwidth,0,1)='';
1463: $LaTeXwidth=($LaTeXwidth/100).'\textwidth';
1464: }
1465: } else {
1.148 sakharuk 1466: $LaTeXwidth ='0.9\textwidth';
1.124 sakharuk 1467: }
1468: my ($pre,$post);
1469: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1470: if (($align eq 'center') || (not defined $align)) {
1471: $pre=''; $post='';
1472: } elsif ($align eq 'left') {
1473: $pre='\rlap{'; $post='} \hfill';
1474: } elsif ($align eq 'right') {
1475: $pre=' \hfill \llap{'; $post='}';
1476: }
1.148 sakharuk 1477: $currentstring .= ' \vskip 0 mm \noindent\makebox['.$LaTeXwidth.']{'.$pre.'\makebox['.
1.124 sakharuk 1478: $LaTeXwidth.'][b]{\hrulefill}'.$post.'}\vskip 0 mm ';
1.122 albertel 1479: }
1480: return $currentstring;
1481: }
1482:
1483: sub end_hr {
1484: my ($target,$token) = @_;
1485: my $currentstring = '';
1.325 albertel 1486: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1487: $currentstring .= $token->[2];
1.148 sakharuk 1488: }
1.122 albertel 1489: return $currentstring;
1490: }
1491:
1.181 sakharuk 1492: #-- <div> tag (end tag required)
1.280 foxr 1493: {
1494:
1495: # Since div can be nested, the stack below is used
1496: # in 'tex' mode to store the ending strings
1497: # for the div stack.
1498:
1499: my @div_end_stack;
1500:
1.122 albertel 1501: sub start_div {
1.280 foxr 1502: my ($target,$token, $tagstack, $parstack, $parser, $safeeval) = @_;
1.279 foxr 1503: my $currentstring = &end_p(); # Close enclosing para.
1.325 albertel 1504: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1505: $currentstring .= $token->[4];
1506: }
1.280 foxr 1507: if ($target eq 'tex') {
1508: # 4 possible alignments: left, right, center, and -missing-.
1509:
1510: my $endstring = '';
1511:
1512: my $align = lc(&Apache::lonxml::get_param('align', $parstack,
1513: $safeeval, undef, 1));
1514: if ($align eq 'center') {
1515: $currentstring .= '\begin{center}';
1516: $endstring = '\end{center}';
1.309 albertel 1517: if (&is_inside_of($tagstack, "table")) {
1518: $currentstring = ¢er_correction().$currentstring;
1519: }
1.280 foxr 1520: }
1521: elsif ($align eq 'right') {
1522: $currentstring .= '\begin{flushright}';
1523: $endstring .= '\end{flushright}';
1524: } elsif ($align eq 'left') {
1525: $currentstring .= '\begin{flushleft}';
1526: $endstring = '\end{flushleft}';
1527: } else {
1528:
1529: }
1530: $currentstring .= "\n"; # For human readability.
1531: $endstring = "\n$endstring\n"; # For human readability
1532: push(@div_end_stack, $endstring);
1533: }
1.122 albertel 1534: return $currentstring;
1535: }
1536:
1537: sub end_div {
1538: my ($target,$token) = @_;
1539: my $currentstring = '';
1.325 albertel 1540: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1541: $currentstring .= $token->[2];
1.280 foxr 1542: }
1543: if ($target eq 'tex') {
1544: my $endstring = pop @div_end_stack;
1545: $currentstring .= $endstring;
1546: }
1.122 albertel 1547: return $currentstring;
1548: }
1.280 foxr 1549: }
1.122 albertel 1550:
1.181 sakharuk 1551: #-- <a> tag (end tag required)
1.122 albertel 1552: sub start_a {
1.149 sakharuk 1553: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1554: my $currentstring = '';
1.325 albertel 1555: if ($target eq 'web' || $target eq 'webgrade') {
1.250 albertel 1556: my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
1557: undef,1);
1558: $currentstring=&Apache::lonenc::encrypt_ref($token,{'href'=>$href});
1.122 albertel 1559: } elsif ($target eq 'tex') {
1.149 sakharuk 1560: my $a=&Apache::lonxml::get_param('href',$parstack,$safeeval,undef,1);
1.161 sakharuk 1561: my $b=&Apache::lonxml::get_param('name',$parstack,$safeeval,undef,1);
1562: if ($a=~/\S/) {
1563: $a=~s/([^\\])%/$1\\\%/g;
1564: $currentstring .= '\ref{URI: '.$a.'}';
1565: } elsif ($b=~/\S/) {
1566: $currentstring .= '\ref{Anchor: '.$b.'}';
1567: } else {
1568: $currentstring.='';
1569: }
1.122 albertel 1570: }
1571: return $currentstring;
1572: }
1573:
1574: sub end_a {
1.168 albertel 1575: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1576: my $currentstring = '';
1.325 albertel 1577: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1578: $currentstring .= $token->[2];
1579: }
1580: return $currentstring;
1581: }
1582:
1.181 sakharuk 1583: #-- <li> tag (end tag optional)
1.122 albertel 1584: sub start_li {
1.168 albertel 1585: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1586: my $currentstring = '';
1.325 albertel 1587: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1588: $currentstring = $token->[4];
1589: } elsif ($target eq 'tex') {
1.237 sakharuk 1590: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1591: my $value=&Apache::lonxml::get_param('value',$parstack,$safeeval,undef,0);
1.238 albertel 1592: #FIXME need to support types i and I
1593: if ($type=~/disc/) {
1594: $currentstring .= ' \item[$\bullet$] ';
1595: } elsif ($type=~/circle/) {
1596: $currentstring .= ' \item[$\circ$] ';
1.146 sakharuk 1597: } elsif ($type=~/square/) {
1.238 albertel 1598: $currentstring .= ' \item[$\diamond$] ';
1599: } elsif ($type eq '1') {
1600: $currentstring .= ' \item['.($Apache::londefdef::list_index+1).'.]';
1.237 sakharuk 1601: } elsif ($type eq 'A') {
1.238 albertel 1602: $currentstring .= ' \item['.('A'..'Z')[$Apache::londefdef::list_index].'.]';
1.237 sakharuk 1603: } elsif ($type eq 'a') {
1.238 albertel 1604: $currentstring .= ' \item['.('a'..'z')[$Apache::londefdef::list_index].'.]';
1.237 sakharuk 1605: } elsif ($value ne '') {
1606: $currentstring .= ' \item['.$value.'] ';
1.122 albertel 1607: } else {
1.146 sakharuk 1608: $currentstring .= ' \item ';
1.122 albertel 1609: }
1.238 albertel 1610: $Apache::londefdef::list_index++;
1611: }
1.122 albertel 1612: return $currentstring;
1613: }
1614:
1615: sub end_li {
1616: my ($target,$token) = @_;
1.279 foxr 1617: my $currentstring = &end_p(); # In case there's a <p> in the <li>
1.325 albertel 1618: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1619: $currentstring .= $token->[2];
1.122 albertel 1620: }
1621: return $currentstring;
1622: }
1623:
1.181 sakharuk 1624: #-- <u> tag (end tag required)
1.122 albertel 1625: sub start_u {
1626: my ($target,$token) = @_;
1627: my $currentstring = '';
1.325 albertel 1628: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1629: $currentstring .= $token->[4];
1630: } elsif ($target eq 'tex') {
1631: &Apache::lonxml::startredirection();
1632: }
1633: return $currentstring;
1634: }
1635:
1636: sub end_u {
1637: my ($target,$token) = @_;
1638: my $currentstring = '';
1.325 albertel 1639: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1640: $currentstring .= $token->[2];
1641: } elsif ($target eq 'tex') {
1642: $currentstring=&Apache::lonxml::endredirection();
1643: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1644: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1645: $currentstring=~s/(\S)\s*$/$1\}/;
1646: }
1647: return $currentstring;
1648: }
1649:
1.181 sakharuk 1650: #-- <ul> tag (end tag required)
1.122 albertel 1651: sub start_ul {
1.125 sakharuk 1652: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1653: my $currentstring = &end_p(); # Close off enclosing list.
1.325 albertel 1654: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1655: $currentstring .= $token->[4];
1.122 albertel 1656: } elsif ($target eq 'tex') {
1.125 sakharuk 1657: my $TeXtype=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1.238 albertel 1658: $Apache::londefdef::list_index=0;
1.125 sakharuk 1659: if ($TeXtype eq 'disc') {
1.222 sakharuk 1660: $currentstring .= '\renewcommand{\labelitemi}{$\bullet$}'.
1661: '\renewcommand{\labelitemii}{$\bullet$}'.
1662: '\renewcommand{\labelitemiii}{$\bullet$}'.
1663: '\renewcommand{\labelitemiv}{$\bullet$}';
1.125 sakharuk 1664: } elsif ($TeXtype eq 'circle') {
1.222 sakharuk 1665: $currentstring .= '\renewcommand{\labelitemi}{$\circ$}'.
1666: '\renewcommand{\labelitemii}{$\circ$}'.
1667: '\renewcommand{\labelitemiii}{$\circ$}'.
1668: '\renewcommand{\labelitemiv}{$\circ$}';
1.125 sakharuk 1669: } elsif ($TeXtype eq 'square') {
1.222 sakharuk 1670: $currentstring .= '\renewcommand{\labelitemi}{$\diamond$}'.
1671: '\renewcommand{\labelitemii}{$\diamond$}'.
1672: '\renewcommand{\labelitemiii}{$\diamond$}'.
1673: '\renewcommand{\labelitemiv}{$\diamond$}';
1.125 sakharuk 1674: }
1.222 sakharuk 1675: $currentstring .= '\strut \begin{itemize}';
1.122 albertel 1676: }
1677: return $currentstring;
1678: }
1679:
1680: sub end_ul {
1681: my ($target,$token) = @_;
1682: my $currentstring = '';
1.325 albertel 1683: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1684: $currentstring = $token->[2];
1685: } elsif ($target eq 'tex') {
1.222 sakharuk 1686: $currentstring = '\end{itemize} \renewcommand{\labelitemi}{$\bullet$}'.
1687: '\renewcommand{\labelitemii}{$\bullet$}'.
1688: '\renewcommand{\labelitemiii}{$\bullet$}'.
1689: '\renewcommand{\labelitemiv}{$\bullet$}\strut ';
1.122 albertel 1690: }
1691: return $currentstring;
1692: }
1693:
1.181 sakharuk 1694: #-- <menu> tag (end tag required)
1.122 albertel 1695: sub start_menu {
1696: my ($target,$token) = @_;
1697: my $currentstring = '';
1.325 albertel 1698: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1699: $currentstring = $token->[4];
1700: } elsif ($target eq 'tex') {
1701: $currentstring = " \\begin{itemize} ";
1702: }
1703: return $currentstring;
1704: }
1705:
1706: sub end_menu {
1707: my ($target,$token) = @_;
1708: my $currentstring = '';
1.325 albertel 1709: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1710: $currentstring = $token->[2];
1711: } elsif ($target eq 'tex') {
1712: $currentstring = " \\end{itemize}";
1713: }
1714: return $currentstring;
1715: }
1716:
1.181 sakharuk 1717: #-- <dir> tag (end tag required)
1.122 albertel 1718: sub start_dir {
1719: my ($target,$token) = @_;
1.279 foxr 1720: my $currentstring = &end_p(); # In case there's a <p> prior to the list.
1.325 albertel 1721: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1722: $currentstring .= $token->[4];
1.122 albertel 1723: } elsif ($target eq 'tex') {
1.277 foxr 1724: $currentstring .= " \\begin{itemize} ";
1.122 albertel 1725: }
1726: return $currentstring;
1727: }
1728:
1729: sub end_dir {
1730: my ($target,$token) = @_;
1731: my $currentstring = '';
1.325 albertel 1732: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1733: $currentstring = $token->[2];
1734: } elsif ($target eq 'tex') {
1735: $currentstring = " \\end{itemize}";
1736: }
1737: return $currentstring;
1738: }
1739:
1.181 sakharuk 1740: #-- <ol> tag (end tag required)
1.122 albertel 1741: sub start_ol {
1.125 sakharuk 1742: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1743: my $currentstring = &end_p(); # In case there's a <p> prior to the list.
1.325 albertel 1744: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1745: $currentstring .= $token->[4];
1.122 albertel 1746: } elsif ($target eq 'tex') {
1.238 albertel 1747: $Apache::londefdef::list_index=0;
1.125 sakharuk 1748: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1749: if ($type eq '1') {
1.222 sakharuk 1750: $currentstring .= '\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1751: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1752: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1753: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}';
1.125 sakharuk 1754: } elsif ($type eq 'A') {
1.222 sakharuk 1755: $currentstring .= '\renewcommand{\labelenumi}{\Alph{enumi}.}'.
1756: '\renewcommand{\labelenumii}{\Alph{enumii}.}'.
1757: '\renewcommand{\labelenumiii}{\Alph{enumiii}.}'.
1758: '\renewcommand{\labelenumiv}{\Alph{enumiv}.}';
1.125 sakharuk 1759: } elsif ($type eq 'a') {
1.222 sakharuk 1760: $currentstring .= '\renewcommand{\labelenumi}{\alph{enumi}.}'.
1761: '\renewcommand{\labelenumii}{\alph{enumii}.}'.
1762: '\renewcommand{\labelenumiii}{\alph{enumiii}.}'.
1763: '\renewcommand{\labelenumiv}{\alph{enumiv}.}';
1.125 sakharuk 1764: } elsif ($type eq 'i') {
1.222 sakharuk 1765: $currentstring .= '\renewcommand{\labelenumi}{\roman{enumi}.}'.
1766: '\renewcommand{\labelenumii}{\roman{enumii}.}'.
1767: '\renewcommand{\labelenumiii}{\roman{enumiii}.}'.
1768: '\renewcommand{\labelenumiv}{\roman{enumiv}.}';
1.125 sakharuk 1769: } elsif ($type eq 'I') {
1.222 sakharuk 1770: $currentstring .= '\renewcommand{\labelenumi}{\Roman{enumi}.}'.
1771: '\renewcommand{\labelenumii}{\Roman{enumii}.}'.
1772: '\renewcommand{\labelenumiii}{\Roman{enumiii}.}'.
1773: '\renewcommand{\labelenumiv}{\Roman{enumiv}.}';
1.125 sakharuk 1774: }
1.222 sakharuk 1775: $currentstring .= '\strut \begin{enumerate}';
1.122 albertel 1776: }
1777: return $currentstring;
1778: }
1779:
1780: sub end_ol {
1781: my ($target,$token) = @_;
1782: my $currentstring = '';
1.325 albertel 1783: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1784: $currentstring = $token->[2];
1785: } elsif ($target eq 'tex') {
1.222 sakharuk 1786: $currentstring = '\end{enumerate}\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1787: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1788: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1789: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}\strut ';
1.122 albertel 1790: }
1791: return $currentstring;
1792: }
1793:
1.181 sakharuk 1794: #-- <dl> tag (end tag required)
1.122 albertel 1795: sub start_dl {
1796: my ($target,$token) = @_;
1.279 foxr 1797: my $currentstring = &end_p(); # In case there's a <p> unclosed prior to the list.
1.325 albertel 1798: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1799: $currentstring .= $token->[4];
1.122 albertel 1800: } elsif ($target eq 'tex') {
1.277 foxr 1801: $currentstring .= '\begin{description}';
1.243 albertel 1802: $Apache::londefdef::DL++;
1803: push(@Apache::londefdef::description,[]);
1804: $Apache::londefdef::DD[$Apache::londefdef::DL]=0;
1805: $Apache::londefdef::DT[$Apache::londefdef::DL]=0;
1.244 albertel 1806: $Apache::londefdef::seenDT[$Apache::londefdef::DL]=0;
1.122 albertel 1807: }
1808: return $currentstring;
1809: }
1810:
1811: sub end_dl {
1.174 sakharuk 1812: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1813: my $currentstring = '';
1.325 albertel 1814: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1815: $currentstring = $token->[2];
1816: } elsif ($target eq 'tex') {
1.243 albertel 1817: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1818: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
1819: foreach my $element (@{$Apache::londefdef::description[-1]}) {
1.174 sakharuk 1820: $currentstring.=' '.$element.' ';
1821: }
1.243 albertel 1822: pop(@Apache::londefdef::description);
1.174 sakharuk 1823: $currentstring.='\end{description}';
1.243 albertel 1824: delete($Apache::londefdef::DD[$Apache::londefdef::DL]);
1825: delete($Apache::londefdef::DT[$Apache::londefdef::DL]);
1.244 albertel 1826: delete($Apache::londefdef::seenDT[$Apache::londefdef::DL]);
1.243 albertel 1827: $Apache::londefdef::DL--;
1.122 albertel 1828: }
1829: return $currentstring;
1830: }
1831:
1.172 sakharuk 1832: #-- <dt> tag (end tag optional)
1.122 albertel 1833: sub start_dt {
1.172 sakharuk 1834: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1835: my $currentstring='';
1.325 albertel 1836: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1837: $currentstring = $token->[4];
1838: } elsif ($target eq 'tex') {
1.243 albertel 1839: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1840: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
1.174 sakharuk 1841: &Apache::lonxml::startredirection();
1.243 albertel 1842: $Apache::londefdef::DT[-1]++;
1.244 albertel 1843: $Apache::londefdef::seenDT[-1]=1;
1.122 albertel 1844: }
1845: return $currentstring;
1846: }
1847:
1848: sub end_dt {
1.172 sakharuk 1849: my ($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]) {
1855: my $data=&item_cleanup();
1.244 albertel 1856: push(@{$Apache::londefdef::description[-1]},'\item['.$data.'] \strut \vskip 0mm');
1.243 albertel 1857: $Apache::londefdef::DT[-1]--;
1858: }
1.122 albertel 1859: }
1860: return $currentstring;
1861: }
1862:
1.173 sakharuk 1863: sub item_cleanup {
1.174 sakharuk 1864: my $item=&Apache::lonxml::endredirection();
1.173 sakharuk 1865: $item=~s/\\begin{center}//g;
1866: $item=~s/\\end{center}//g;
1867: return $item;
1868: }
1869:
1.181 sakharuk 1870: #-- <dd> tag (end tag optional)
1.122 albertel 1871: sub start_dd {
1.147 sakharuk 1872: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1873: my $currentstring = '';
1.325 albertel 1874: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1875: $currentstring = $token->[4];
1.147 sakharuk 1876: } elsif ($target eq 'tex') {
1.243 albertel 1877: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1878: if ($Apache::londefdef::DD[-1]) { &end_dd(@_);}
1.244 albertel 1879: if (!$Apache::londefdef::seenDT[-1]) {
1880: push(@{$Apache::londefdef::description[-1]},'\item[\strut] \strut \vskip 0mm ');
1881: }
1.243 albertel 1882: push(@{$Apache::londefdef::description[-1]},'');
1883: $Apache::londefdef::description[-1]->[-1].=' \strut ';
1884: $Apache::londefdef::DD[-1]++;
1.174 sakharuk 1885: &Apache::lonxml::startredirection();
1.122 albertel 1886: }
1887: return $currentstring;
1888: }
1889:
1890: sub end_dd {
1.174 sakharuk 1891: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1892: my $currentstring = '';
1.325 albertel 1893: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1894: $currentstring = $token->[2];
1.174 sakharuk 1895: } elsif ($target eq 'tex') {
1.243 albertel 1896: $Apache::londefdef::description[-1]->[-1].=
1897: &Apache::lonxml::endredirection().' \vskip 0mm ';
1898: $Apache::londefdef::DD[-1]--;
1.174 sakharuk 1899: }
1.122 albertel 1900: return $currentstring;
1901: }
1902:
1.181 sakharuk 1903: #-- <table> tag (end tag required)
1.277 foxr 1904: # <table> also ends any prior <p> that is not closed.
1905: # but, unless I allow <p>'s to nest, that's the
1906: # only way I could think of to allow <p> in
1907: # <tr> <th> bodies
1908: #
1.206 sakharuk 1909: #list of supported attributes: border,width,TeXwidth
1.91 sakharuk 1910: sub start_table {
1911: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 foxr 1912: my $textwidth = '';
1.279 foxr 1913: my $currentstring = &end_p();
1.325 albertel 1914: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1915: $currentstring .= $token->[4];
1.91 sakharuk 1916: } elsif ($target eq 'tex') {
1917: my $aa = {};
1918: push @Apache::londefdef::table, $aa;
1919: $Apache::londefdef::table[-1]{'row_number'} = -1;
1.222 sakharuk 1920: #maximum table's width (default coincides with text line length)
1.206 sakharuk 1921: if ($#Apache::londefdef::table==0) {
1.267 albertel 1922: $textwidth=&recalc($env{'form.textwidth'}); #result is always in mm
1.206 sakharuk 1923: $textwidth=~/(\d+\.?\d*)/;
1924: $textwidth=0.95*$1; #accounts "internal" LaTeX space for table frame
1925: } else {
1926: if ($Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}]=~/\d/) {
1927: #the maximum width of nested table is determined by LATeX width of parent cell
1928: $textwidth=$Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}];
1929: } else {
1930: #try to use all space not used before (minus 5% for LaTeX table internal) - rather silly
1.228 sakharuk 1931: $textwidth=$Apache::londefdef::table[-2]{'width'};
1.206 sakharuk 1932: for (my $i=0;$i<$Apache::londefdef::table[-2]{'counter_columns'};$i++) {
1933: $textwidth=$textwidth-$Apache::londefdef::table[-2]{'TeXlen'}[0][$i];
1934: }
1935: }
1936: }
1.294 foxr 1937:
1938: # width either comes forced from the TeXwidth or the width parameters.
1939: # in either case it can be a percentage or absolute width.
1.311 albertel 1940: # in the width case we ignore absolute width
1.126 sakharuk 1941: my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1.308 albertel 1942: if (!defined($TeXwidth)) {
1.311 albertel 1943: my $htmlwidth = &Apache::lonxml::get_param('width',$parstack,
1944: $safeeval,undef,1);
1945: if ($htmlwidth =~ /%/) {
1946: $TeXwidth = $htmlwidth;
1947: } else {
1948: $TeXwidth = $textwidth;
1949: }
1.294 foxr 1950: } else {
1951: $Apache::londefdef::table[-1]{'forcedtablewidth'} = 1;
1952: }
1953: if ($TeXwidth=~/%/) {
1.203 sakharuk 1954: $Apache::londefdef::table[-1]{'percent'}=1;
1.126 sakharuk 1955: $TeXwidth=~/(\d+)/;
1.206 sakharuk 1956: $Apache::londefdef::table[-1]{'width'}=$1*$textwidth/100;
1.126 sakharuk 1957: } else {
1.206 sakharuk 1958: $Apache::londefdef::table[-1]{'width'}=$TeXwidth;
1.316 foxr 1959: }
1960: # In the end, however the table width cannot be wider than $textwidth...
1961:
1962: if ($Apache::londefdef::table[-1]{'width'} > $textwidth) {
1963: $Apache::londefdef::table[-1]{'width'} = $textwidth;
1964: }
1.294 foxr 1965:
1.126 sakharuk 1966: #table's border
1.206 sakharuk 1967: my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval);
1.208 sakharuk 1968: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
1.91 sakharuk 1969: unless (defined $border) { $border = 0; }
1970: if ($border) {
1971: $Apache::londefdef::table[-1]{'hinc'} = '\hline ';
1972: $Apache::londefdef::table[-1]{'vinc'} = '&';
1973: $Apache::londefdef::table[-1]{'vvinc'} = '|';
1974: } else {
1975: $Apache::londefdef::table[-1]{'hinc'} = '';
1976: $Apache::londefdef::table[-1]{'vinc'} = '&';
1977: $Apache::londefdef::table[-1]{'vvinc'} = '';
1978: }
1.206 sakharuk 1979: if ($#Apache::londefdef::table==0) {
1.281 foxr 1980: # Note that \newline seems to destroy the alignment envs.
1981: # $Apache::londefdef::table[-1]{'output'}='\strut\newline\strut\setlength{\tabcolsep}{1 mm}';
1982: $Apache::londefdef::table[-1]{'output'}='\strut'.'\\\\'."\n".'\strut\setlength{\tabcolsep}{1 mm}';
1.206 sakharuk 1983: }
1984: $Apache::londefdef::table[-1]{'output'}.=' \noindent \begin{tabular} ';
1985: $Apache::londefdef::table[-1]{'TeXlen'}=[];
1986: $Apache::londefdef::table[-1]{'objectlen'}=[];
1.229 sakharuk 1987: $Apache::londefdef::table[-1]{'objectsignal'}=[];
1.206 sakharuk 1988: $Apache::londefdef::table[-1]{'maxlen'}=[];
1989: $Apache::londefdef::table[-1]{'minlen'}=[];
1990: $Apache::londefdef::table[-1]{'content'}=[];
1991: $Apache::londefdef::table[-1]{'align'}=[];
1.277 foxr 1992: $currentstring.='\keephidden{NEW TABLE ENTRY}';
1.295 foxr 1993:
1.294 foxr 1994:
1995: }
1.91 sakharuk 1996: return $currentstring;
1997: }
1.122 albertel 1998:
1999: sub end_table {
2000: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2001: my $currentstring = '';
1.325 albertel 2002: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2003: $currentstring = $token->[2];
2004: } elsif ($target eq 'tex') {
2005: my $inmemory = '';
2006: my $output = '';
1.206 sakharuk 2007: my $WARNING='';
2008: #width of columns from TeXwidth attributes
1.294 foxr 2009:
1.206 sakharuk 2010: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2011: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2012: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]<$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn]) {
2013: $Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]=$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn];
2014: }
2015: }
2016: }
2017: #free space and number of empty columns
2018: my ($available_space,$empty_columns)=($Apache::londefdef::table[-1]{'width'},0);
1.228 sakharuk 2019: if ($#Apache::londefdef::table ne 0) {$available_space=0.9*$available_space;}
1.206 sakharuk 2020: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2021: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]==0) {
2022: $empty_columns++;
2023: } else {
2024: $available_space=$available_space-$Apache::londefdef::table[-1]{'TeXlen'}[0][$jn];
2025: }
2026: }
2027: #boundaries for contents columns
2028: my @min_len=();#columns can not be narrower
2029: my @max_len=();#maximum length of column
2030: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2031: my ($localmin,$localmax)=(0,0);
2032: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2033: if ($localmin<$Apache::londefdef::table[-1]{'minlen'}[$in][$jn]) {
2034: $localmin=$Apache::londefdef::table[-1]{'minlen'}[$in][$jn];
2035: }
2036: if ($localmax<$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn]) {
2037: $localmax=$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn];
2038: }
2039: }
2040: push @min_len, $localmin;
2041: push @max_len, $localmax;
1.122 albertel 2042: }
1.206 sakharuk 2043: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2044: my $localmin=0,;
2045: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2046: if ($localmin<$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn]) {
2047: $localmin=$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn];
2048: }
2049: }
1.229 sakharuk 2050: if ($max_len[$jn]<$localmin) {
2051: $max_len[$jn]=$localmin;
2052: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
2053: }#object size is bigger
2054: if ($min_len[$jn]<$localmin) {
2055: $min_len[$jn]=$localmin;
2056: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
2057: }#object size is bigger
1.206 sakharuk 2058: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]!=0) {
2059: $min_len[$jn]=0;
2060: $max_len[$jn]=0;
2061: }
2062: }
2063: #final adjustment of column width
2064: my @fwidth=@{$Apache::londefdef::table[-1]{'TeXlen'}[0]};#final width array
2065: my @adjust=();
2066: #step 1. adjustment by maximum value
2067: my $space_neeeded=0;
2068: for (my $jn=0;$jn<=$#max_len;$jn++) {
2069: $space_neeeded=$space_neeeded+$max_len[$jn];
2070: }
2071: if ($space_neeeded<=$available_space) {
2072: for (my $jn=0;$jn<=$#max_len;$jn++) {
2073: if ($fwidth[$jn]==0) {
2074: $fwidth[$jn]=$max_len[$jn];
1.53 sakharuk 2075: }
1.51 sakharuk 2076: }
1.206 sakharuk 2077: } else {
2078: #step 2. adjustment by minimum value (estimation)
2079: $space_neeeded=0;
2080: for (my $jn=0;$jn<=$#min_len;$jn++) {
2081: $space_neeeded+=$min_len[$jn];
2082: }
2083: if ($space_neeeded>$available_space) {
2084: $WARNING=' \textbf{NOT ENOUGH SPACE FOR TABLE} ';
2085: for (my $jn=0;$jn<=$#max_len;$jn++) {
2086: if ($fwidth[$jn]==0) {
2087: $fwidth[$jn]=$min_len[$jn];
2088: }
2089: }
1.229 sakharuk 2090: #check if we have objects which can be scaled
2091: my $how_many_to_scale=0;
2092: my @to_scale=();
2093: for (my $jn=0;$jn<=$#max_len;$jn++) {
2094: if ($Apache::londefdef::table[-1]{'objectsignal'}[$jn] eq '1') {
2095: $how_many_to_scale++;
2096: push @to_scale, $jn;
2097: }
2098: }
2099: if ($how_many_to_scale>0) {
2100: my $space_to_adjust=($space_neeeded-$available_space)/$how_many_to_scale;
2101: foreach my $jn (@to_scale) {
2102: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2103: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/;
2104: if ($1 ne '') {
2105: my $current_length=&recalc($1);
2106: $current_length=~/(\d+\.?\d*)/;
2107: $current_length=$current_length-$space_to_adjust;
2108: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/width=$current_length mm/;
2109: }
2110: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/\[(\d+\.?\d*)\s*mm\]/;
2111: if ($1 ne '') {
2112: my $current_length=$1;
2113: $current_length=$current_length-$space_to_adjust;
2114: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/\[(\d+\.?\d*)\s*mm\]/\[$current_length mm\]/;
2115: }
2116: }
2117: $fwidth[$jn]=$fwidth[$jn]-$space_to_adjust;
2118: }
2119: }
1.206 sakharuk 2120: } else {
2121: #step 3. adjustment over minimal + corrections
2122: my $enlarge_coef=$available_space/$space_neeeded;
2123: my $acsessive=0;
2124: for (my $jn=0;$jn<=$#min_len;$jn++) {
2125: $adjust[$jn]=$min_len[$jn]*$enlarge_coef;
2126: if ($adjust[$jn]>$max_len[$jn]) {
2127: $fwidth[$jn]=$max_len[$jn];
2128: $acsessive=$acsessive+$adjust[$jn]-$max_len[$jn];
2129: $adjust[$jn]=0;
2130: }
2131: }
2132: if ($acsessive>0) {
2133: #we have an excess of space and can redistribute it
2134: my $notempty_columns=0;
2135: for (my $jn=0;$jn<=$#min_len;$jn++) {
2136: if ($adjust[$jn]!=0) {
2137: $notempty_columns++;
2138: }
2139: }
2140: my $per_column=$acsessive/$notempty_columns;
2141: for (my $jn=0;$jn<=$#min_len;$jn++) {
2142: if ($adjust[$jn]!=0) {
2143: $adjust[$jn]+=$per_column;
2144: $fwidth[$jn]=$adjust[$jn];
2145: }
1.223 sakharuk 2146: }
2147: } else {
2148: for (my $jn=0;$jn<=$#min_len;$jn++) {
2149: $fwidth[$jn]=$adjust[$jn];
1.206 sakharuk 2150: }
2151: }
1.203 sakharuk 2152: }
2153: }
1.222 sakharuk 2154: #use all available width if it is defined in % or as TeXwidth
2155: if (($Apache::londefdef::table[-1]{'percent'}==1) || ($Apache::londefdef::table[-1]{'forcetablewidth'}==1)) {
1.203 sakharuk 2156: my $current=0;
1.206 sakharuk 2157: for (my $i=0;$i<=$#fwidth;$i++) {
2158: $current+=$fwidth[$i];
1.203 sakharuk 2159: }
2160: my $coef=$Apache::londefdef::table[-1]{'width'}/$current;
1.206 sakharuk 2161: for (my $i=0;$i<=$#fwidth;$i++) {
2162: $fwidth[$i]*=$coef;
2163: }
2164: }
2165: #removing of empty columns if allowed
1.208 sakharuk 2166: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
1.206 sakharuk 2167: if ($permission eq 'yes') {
2168: my @cleaned_table=();
2169: my @cleaned_header=();
2170: my $colind=0;
2171: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2172: if ($fwidth[$jn]!=0) {
2173: #we need to copy column
2174: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2175: $cleaned_table[$in][$colind]=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
2176: $cleaned_header[$colind]=$fwidth[$jn];
2177: }
2178: $colind++;
2179: }
1.122 albertel 2180: }
1.206 sakharuk 2181: $Apache::londefdef::table[-1]{'content'}=\@cleaned_table;
2182: @fwidth=@cleaned_header;
1.122 albertel 2183: }
1.206 sakharuk 2184: #construct header of the table
2185: my $header_of_table = '{'.$Apache::londefdef::table[-1]{'vvinc'};
2186: for (my $in=0;$in<=$#fwidth;$in++) {
2187: $header_of_table.='p{'.$fwidth[$in].' mm}'.$Apache::londefdef::table[-1]{'vvinc'};
2188: }
2189: $header_of_table .= '}';
1.126 sakharuk 2190: #fill the table
2191: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1.306 foxr 2192: my $have_rowspan = 0;
1.206 sakharuk 2193: for (my $jn=0;$jn<=$#fwidth;$jn++) {
1.320 foxr 2194:
2195: #-----------------------------------------------------------
2196: # I think this order of doing things will ensure that
2197: # single rowspan, columspan and combined row/colspans will
2198: # work correctly. LaTeX is delicate here.
2199: # RF.
2200:
2201: # Start a rowspan if necessary:
2202:
2203: my $rowspan = $Apache::londefdef::table[-1]{'rowspan'}[$in][$jn];
2204: my $colspan = $Apache::londefdef::table[-1]{'colspan'}[$in][$jn];
1.304 foxr 2205: #
2206: # Do the appropriate magic if this has a colspan
2207: #
1.320 foxr 2208:
1.304 foxr 2209: if ($colspan > 1) {
1.336 foxr 2210: my $spanwidth = 0;
2211: for (my $spancol = $jn; $spancol < $jn + $colspan; $spancol++) {
2212: $spanwidth += $fwidth[$spancol];
2213: }
1.304 foxr 2214: $output .= '\multicolumn{'.
2215: $colspan
1.337 ! foxr 2216: ."}";
! 2217: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
! 2218: $output .= '{|c|}{';
! 2219: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
! 2220: $output .= '{|r|}{';
! 2221: }
! 2222: else {
! 2223: $output .= "{|p{$spanwidth mm}|}{";
! 2224: }
! 2225:
1.304 foxr 2226: }
1.306 foxr 2227:
1.337 ! foxr 2228: # Rowspan... if colspan is 1, and there's an alignment we'll need
! 2229: # to kick in a multicolumn in order to get the alignment spec.
! 2230: # this must precede the multirow or LaTex gets quite upset.
! 2231: # Naturally if colspan > 1 we've already done that above ^
! 2232: #
! 2233: my $multirow_aligned = 0;
1.306 foxr 2234: if ($rowspan > 1) {
1.337 ! foxr 2235: if ($colspan == 1) {
! 2236: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
! 2237: $output .= '\multicolumn{1}{|c|}{';
! 2238: $multirow_aligned = 1;
! 2239: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
! 2240: $output .= '\multicolumn{1}{|r|}{';
! 2241: $multirow_aligned = 1;
! 2242: }
! 2243: }
1.306 foxr 2244: $have_rowspan++;
1.337 ! foxr 2245: $output .= '\multirow{'.$rowspan.'}[0]{*}{';
! 2246: #
! 2247: # If we did not throw in a multicolumn to align, then add
! 2248: # an extra {
! 2249: # so we close correctly without having to keep additional state
! 2250: # around
! 2251: #
! 2252: if (!$multirow_aligned) {
! 2253: $output .= '{';
! 2254: }
1.306 foxr 2255: }
2256: if (($rowspan eq '^') || ($rowspan eq '_')) {
2257: $have_rowspan++;
2258: }
1.320 foxr 2259: #--------------------------------------------------------------
1.306 foxr 2260:
1.337 ! foxr 2261:
! 2262: # For right and center alignment of single cells.
! 2263: # we are going to use a multicolumn with a span of 1 to specify alignment.
! 2264: #
! 2265: if ($colspan == 1 && $rowspan == 1) {
! 2266: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
! 2267: $output .= '\multicolumn{1}{|c|}{';
! 2268: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
! 2269: $output .= '\multicolumn{1}{|r|}{';
! 2270: }
1.206 sakharuk 2271: }
1.337 ! foxr 2272:
1.206 sakharuk 2273: $output.=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
1.337 ! foxr 2274:
! 2275: if (($colspan == 1 && $rowspan == 1) &&
! 2276: (($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') ||
! 2277: ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r'))) {
! 2278: $output .= '}';
1.206 sakharuk 2279: }
1.337 ! foxr 2280:
1.306 foxr 2281: # Close off any open multirow:
2282:
2283: if ($rowspan > 1) {
1.337 ! foxr 2284: $output .= '}}';
1.306 foxr 2285: }
1.304 foxr 2286: # Close off the colspan...
2287: #
2288: if ($colspan > 1) {
2289: $output .= '}';
2290: $jn += $colspan-1; # Adjust for number of rows really left.
2291: }
1.206 sakharuk 2292: if ($jn!=$#fwidth) {$output.=' '.$Apache::londefdef::table[-1]{'vinc'};}
2293: }
1.306 foxr 2294: # If have_rowspan > 0, and borders are on, then
2295: # we need to do more than put an \hline at the bottom of row.
2296: # we need to do the appropriate \cline to ensure that
2297: # the spanned rows don't have \hlines through them.
2298:
2299: if (($Apache::londefdef::table[-1]{'hinc'} =~ /\\hline/) && $have_rowspan) {
2300: $output .= ' \\\\ ';
2301: for (my $jn=0; $jn<=$#fwidth;$jn++) {
2302: my $rowspan = $Apache::londefdef::table[-1]{'rowspan'}[$in][$jn];
1.320 foxr 2303: if ($rowspan ne "^") {
2304: if (($rowspan <= 1) || ($rowspan eq '_')) {
2305: my $column = $jn+1;
2306: $output .= '\cline{'.$column.'-'.$column.'} ';
2307: }
1.306 foxr 2308: }
2309: }
2310:
2311: } else {
2312: $output.=' \\\\ '.$Apache::londefdef::table[-1]{'hinc'}.' ';
2313: }
1.122 albertel 2314: }
1.281 foxr 2315: # Note that \newline destroys alignment env's produced by e.g. <div>
2316: # $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut\newline\strut ';
2317: $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut'.'\\\\'."\n".'\strut ';
1.127 sakharuk 2318: if ($#Apache::londefdef::table > 0) {
2319: my $inmemory = $Apache::londefdef::table[-1]{'output'};
1.294 foxr 2320: # Figure out max/and min width by summing us and then
2321: # apply that to the current column of the table we nest in
2322: # if it's larger than the current width or the current width
2323: # is undefined.
2324: #
2325: my $min_nested_width = 0;
2326: my $max_nested_width = 0;
2327: for (my $col = 0; $col <= $Apache::londefdef::table[-1]{'counter_columns'}; $col++) {
2328: $min_nested_width += $min_len[$col];
2329: $max_nested_width += $max_len[$col];
1.300 foxr 2330:
1.294 foxr 2331: }
2332: # Fudge in an extra 5 mm for borders etc:
2333:
2334: $min_nested_width += 5;
2335: $max_nested_width += 5;
2336:
2337: my $outer_column = $Apache::londefdef::table[-2]{'counter_columns'};
2338: my $outer_row = $Apache::londefdef::table[-2]{'row_number'};
2339: if ($min_nested_width > $Apache::londefdef::table[-2]{'minlen'}[$outer_row][$outer_column]) {
2340: $Apache::londefdef::table[-2]{'minlen'}[$outer_row][$outer_column] = $min_nested_width;
2341: }
2342: if ($max_nested_width > $Apache::londefdef::table[-2]{'maxlen'}[$outer_row][$outer_column]) {
2343: $Apache::londefdef::table[-2]{'maxlen'}[$outer_row][$outer_column] = $max_nested_width;
2344: }
2345:
1.127 sakharuk 2346: pop @Apache::londefdef::table;
1.129 sakharuk 2347: push @{$Apache::londefdef::table[-1]{'include'}}, $inmemory;
1.127 sakharuk 2348: } else {
2349: $currentstring .= $Apache::londefdef::table[-1]{'output'};
2350: pop @Apache::londefdef::table;
1.143 sakharuk 2351: undef @Apache::londefdef::table;
1.127 sakharuk 2352: }
1.122 albertel 2353: }
2354: return $currentstring;
2355: }
2356:
1.166 sakharuk 2357: #-- <tr> tag (end tag optional)
1.122 albertel 2358: sub start_tr {
2359: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2360: my $currentstring = '';
1.325 albertel 2361: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2362: $currentstring = $token->[4];
2363: } elsif ($target eq 'tex') {
2364: $Apache::londefdef::table[-1]{'row_number'}++;
1.206 sakharuk 2365: my $alignchar=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.122 albertel 2366: if ($alignchar ne '') {
1.206 sakharuk 2367: push @ {$Apache::londefdef::table[-1]{'rows'} },substr($alignchar,0,1);
1.122 albertel 2368: } else {
2369: push @ {$Apache::londefdef::table[-1]{'rows'} }, 'l';
2370: }
2371: push ( @{ $Apache::londefdef::table[-1]{'rowdata'} }, $Apache::londefdef::table[-1]{'hinc'});
1.300 foxr 2372: #
2373: # Need to save the number of table columns to preserve the max # columns.
2374: #
2375: $Apache::londefdef::table[-1]{'prior_columns'} = $Apache::londefdef::table[-1]{'counter_columns'};
1.122 albertel 2376: $Apache::londefdef::table[-1]{'counter_columns'} = -1;
1.206 sakharuk 2377: push @ {$Apache::londefdef::table[-1]{'TeXlen'}}, [];
2378: push @ {$Apache::londefdef::table[-1]{'objectlen'}}, [];
2379: push @ {$Apache::londefdef::table[-1]{'minlen'}}, [];
2380: push @ {$Apache::londefdef::table[-1]{'maxlen'}}, [];
2381: push @ {$Apache::londefdef::table[-1]{'content'}}, [];
1.122 albertel 2382: }
2383: return $currentstring;
2384: }
2385:
2386: sub end_tr {
1.160 sakharuk 2387: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 2388: my $currentstring = &end_p(); # Close any pending <p> in the row.
1.325 albertel 2389: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 2390: $currentstring .= $token->[2];
1.122 albertel 2391: } elsif ($target eq 'tex') {
1.160 sakharuk 2392: if ($Apache::londefdef::TD_redirection) {
2393: &end_td_tex($parstack,$parser,$safeeval);
2394: }
1.300 foxr 2395: # Counter columns must be the maximum number of columns seen
2396: # in the table so far so:
2397: if ($Apache::londefdef::table[-1]{'prior_columns'} > $Apache::londefdef::table[-1]{'counter_columns'}) {
2398: $Apache::londefdef::table[-1]{'counter_columns'} = $Apache::londefdef::table[-1]{'prior_columns'};
2399: }
1.295 foxr 2400:
2401:
1.294 foxr 2402:
1.122 albertel 2403: }
2404: return $currentstring;
2405: }
2406:
1.166 sakharuk 2407: #-- <td> tag (end tag optional)
1.122 albertel 2408: sub start_td {
2409: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2410: my $currentstring = '';
1.325 albertel 2411: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2412: $currentstring = $token->[4];
2413: } elsif ($target eq 'tex') {
1.160 sakharuk 2414: $Apache::londefdef::TD_redirection = 1;
1.159 sakharuk 2415: &tag_check('tr','td',$tagstack,$parstack,$parser,$safeeval);
1.122 albertel 2416: }
2417: return $currentstring;
2418: }
1.159 sakharuk 2419:
2420: sub tag_check {
2421: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
1.160 sakharuk 2422: my @ar=@$parstack;
2423: for (my $i=$#ar-1;$i>=0;$i--) {
2424: if (lc($$tagstack[$i]) eq $good_tag) {
2425: &start_td_tex($parstack,$parser,$safeeval);
2426: last;
2427: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2428: splice @ar, $i+1;
2429: &end_td_tex(\@ar,$parser,$safeeval);
2430: &start_td_tex($parstack,$parser,$safeeval);
2431: last;
1.159 sakharuk 2432: }
1.160 sakharuk 2433: }
1.159 sakharuk 2434: return '';
2435: }
2436:
2437: sub start_td_tex {
2438: my ($parstack,$parser,$safeeval) = @_;
1.206 sakharuk 2439: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2440: if ($alignchar eq '') {
2441: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
1.159 sakharuk 2442: }
1.206 sakharuk 2443: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
1.159 sakharuk 2444: $Apache::londefdef::table[-1]{'counter_columns'}++;
1.206 sakharuk 2445: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2446: if (defined $TeXwidth) {
2447: my $current_length=&recalc($TeXwidth);
2448: $current_length=~/(\d+\.?\d*)/;
2449: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2450: }
1.159 sakharuk 2451: &Apache::lonxml::startredirection();
2452: return '';
2453: }
2454:
2455: sub end_td_tex {
2456: my ($parstack,$parser,$safeeval) = @_;
1.304 foxr 2457: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2458: my $current_column = $Apache::londefdef::table[-1]{'counter_columns'};
1.303 foxr 2459: my $data = &Apache::lonxml::endredirection();
2460:
1.305 foxr 2461: # The rowspan array of the table indicates which cells are part of a span.
2462: # n indicates the start of a span set of n rows.
2463: # ^ indicates a cell that continues a span set.
1.306 foxr 2464: # _ indicates the cell is at the bottom of a span set.
1.305 foxr 2465: # If this and subsequent cells are part of a rowspan, we must
2466: # push along the row until we find one that is not.
2467:
2468: while ((defined $Apache::londefdef::table[-1]{'rowspan'}[$current_row] [$current_column])
1.306 foxr 2469: && ($Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column] =~ /[\^\_]/)) {
1.305 foxr 2470: # Part of a span.
2471: push @ {$Apache::londefdef::table[-1]{'content'}[-1]}, '';
2472: $current_column++;
2473: }
2474: $Apache::londefdef::table[-1]{'counter_columns'} = $current_column;
2475:
2476:
1.320 foxr 2477: # Get the column and row spans.
2478: # Colspan can be done via \multicolumn if I can figure out the data structs.
2479:
2480: my $colspan = &Apache::lonxml::get_param('colspan', $parstack, $safeeval, undef, 0);
2481: if (!$colspan) {
2482: $colspan = 1;
2483: }
1.305 foxr 2484:
2485: my $rowspan = &Apache::lonxml::get_param('rowspan', $parstack, $safeeval, undef, 0);
2486: if (!$rowspan) {
2487: $rowspan = 1;
2488: }
2489:
1.303 foxr 2490:
1.305 foxr 2491:
1.320 foxr 2492: for (my $c = 0; $c < $colspan; $c++) {
2493: $Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column+$c] = $rowspan;
2494: for (my $i = 1; $i < $rowspan; $i++) {
2495: $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column+$c] = '^';
2496: if ($i == ($rowspan-1)) {
2497: $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column+$c] = '_';
2498: }
1.306 foxr 2499: }
1.305 foxr 2500: }
1.304 foxr 2501:
1.159 sakharuk 2502: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2503: if (defined $TeXwidth) {
1.206 sakharuk 2504: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2505: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2506: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
1.159 sakharuk 2507: } else {
1.206 sakharuk 2508: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2509: my $garbage_data=$data;
2510: my $fwidth=0;
2511: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2512: my $current_length=&recalc($1);
2513: $current_length=~/(\d+\.?\d*)/;
2514: if ($fwidth<$1) {$fwidth=$1;}
2515: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2516: }
2517: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2518: my $current_length=$1;
2519: if ($fwidth<$current_length) {$fwidth=$current_length;}
2520: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2521: }
2522: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2523: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2524: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2525: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
1.231 sakharuk 2526: } elsif ($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)*/) {
2527: my $garbage_data=$data;
2528: my $fwidth=0;
2529: while ($garbage_data=~/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)\s*\}/) {
2530: my $current_length=&recalc($1);
2531: $current_length=~/(\d+\.?\d*)/;
2532: if ($fwidth<$1) {$fwidth=$1;}
2533: $garbage_data=~s/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2534: }
2535: while ($garbage_data=~/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2536: my $current_length=&recalc($1);
2537: $current_length=~/(\d+\.?\d*)/;
2538: if ($fwidth<$1) {$fwidth=$1;}
2539: $garbage_data=~s/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2540: }
2541: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2542: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2543: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2544: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2545: $data=~s/\\\\\s*$//;
1.159 sakharuk 2546: } else {
1.166 sakharuk 2547: $data=~s/^\s+(\S.*)/$1/;
1.159 sakharuk 2548: $data=~s/(.*\S)\s+$/$1/;
1.166 sakharuk 2549: $data=~s/(\s)+/$1/;
1.206 sakharuk 2550: my ($current_length,$min_length)=(0,0);
1.166 sakharuk 2551: if ($data=~/\\vskip/) {
2552: my $newdata=$data;
2553: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2554: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2555: foreach my $elementdata (@newdata) {
1.206 sakharuk 2556: my $lengthnewdata=2.5*&LATEX_length($elementdata);
1.166 sakharuk 2557: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
1.206 sakharuk 2558: my @words=split(/ /,$elementdata);
2559: foreach my $word (@words) {
2560: my $lengthword=2.5*&LATEX_length($word);
2561: if ($min_length<$lengthword) {$min_length=$lengthword;}
2562: }
1.166 sakharuk 2563: }
2564: } else {
1.206 sakharuk 2565: $current_length=2.5*&LATEX_length($data);
2566: my @words=split(/ /,$data);
2567: foreach my $word (@words) {
1.228 sakharuk 2568: my $lengthword=2*&LATEX_length($word);
1.206 sakharuk 2569: if ($min_length<$lengthword) {$min_length=$lengthword;}
2570: }
1.166 sakharuk 2571: }
1.206 sakharuk 2572: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2573: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2574: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2575: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
1.159 sakharuk 2576: }
2577: }
1.302 foxr 2578: # Substitute all of the tables nested in this cell in their appropriate places.
2579:
2580:
2581: my $nested_count = $#{$Apache::londefdef::table[-1]{'include'}}; # This one is constant...
2582: for (my $in=0; $in<=$nested_count; $in++) {
1.301 foxr 2583: my $nested = shift @{$Apache::londefdef::table[-1]{'include'}};
2584: $nested =~ s/\\end\{tabular\}\\strut\\\\/\\end\{tabular\}/;
2585: # $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2586: $data =~ s/\\keephidden\{NEW TABLE ENTRY\}/$nested/;
2587:
2588: }
2589: # Should be be killing off the 'include' elements as they're used up?
1.305 foxr 2590:
1.206 sakharuk 2591: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
1.305 foxr 2592:
1.304 foxr 2593:
2594:
2595:
2596: # the colspan array will indicate how many columns will be spanned by this
2597: # cell..this requires that counter_columns also be adjusted accordingly
2598: # so that the next bunch of text goes in the right cell. Note that since
2599: # counter_columns is incremented in the start_td_tex, we adjust by colspan-1.
2600: #
2601:
2602: $Apache::londefdef::table[-1]{'counter_columns'} += $colspan -1;
2603: for (my $i = 0; $i < ($colspan -1); $i++) {
2604: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },'';
2605: }
1.320 foxr 2606: for (my $r = 0; $r < $rowspan; $r++) {
2607: $Apache::londefdef::table[-1]{'colspan'}[$current_row+$r][$current_column] = $colspan;
2608: # Put empty text in spanned cols.
2609:
2610: }
2611:
1.304 foxr 2612:
2613:
1.301 foxr 2614: return '';
1.159 sakharuk 2615: }
2616:
1.122 albertel 2617: sub end_td {
1.126 sakharuk 2618: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 2619: my $currentstring = '';
1.325 albertel 2620: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2621: $currentstring = $token->[2];
2622: } elsif ($target eq 'tex') {
1.160 sakharuk 2623: $Apache::londefdef::TD_redirection =0;
1.159 sakharuk 2624: &end_td_tex($parstack,$parser,$safeeval);
1.122 albertel 2625: }
2626: return $currentstring;
2627: }
2628:
1.166 sakharuk 2629: #-- <th> tag (end tag optional)
1.122 albertel 2630: sub start_th {
2631: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2632: my $currentstring = '';
1.325 albertel 2633: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2634: $currentstring = $token->[4];
2635: } elsif ($target eq 'tex') {
1.230 sakharuk 2636: $Apache::londefdef::TD_redirection = 1;
2637: &tagg_check('tr','th',$tagstack,$parstack,$parser,$safeeval);
1.122 albertel 2638: }
2639: return $currentstring;
1.130 sakharuk 2640: }
1.230 sakharuk 2641:
2642: sub tagg_check {
2643: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
2644: my @ar=@$parstack;
2645: for (my $i=$#ar-1;$i>=0;$i--) {
2646: if (lc($$tagstack[$i]) eq $good_tag) {
2647: &start_th_tex($parstack,$parser,$safeeval);
2648: last;
2649: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2650: splice @ar, $i+1;
2651: &end_th_tex(\@ar,$parser,$safeeval);
2652: &start_th_tex($parstack,$parser,$safeeval);
2653: last;
2654: }
2655: }
2656: return '';
2657: }
2658:
2659: sub start_th_tex {
2660: my ($parstack,$parser,$safeeval) = @_;
2661: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2662: if ($alignchar eq '') {
2663: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
2664: }
2665: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
2666: $Apache::londefdef::table[-1]{'counter_columns'}++;
2667: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2668: if (defined $TeXwidth) {
2669: my $current_length=&recalc($TeXwidth);
2670: $current_length=~/(\d+\.?\d*)/;
2671: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2672: }
2673: &Apache::lonxml::startredirection();
2674: return '';
2675: }
2676:
2677: sub end_th_tex {
2678: my ($parstack,$parser,$safeeval) = @_;
2679: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2680: my $data=&Apache::lonxml::endredirection();
2681: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2682: if (defined $TeXwidth) {
2683: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2684: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2685: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2686: } else {
2687: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2688: my $garbage_data=$data;
2689: my $fwidth=0;
2690: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2691: my $current_length=&recalc($1);
2692: $current_length=~/(\d+\.?\d*)/;
2693: if ($fwidth<$1) {$fwidth=$1;}
2694: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2695: }
2696: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2697: my $current_length=$1;
2698: if ($fwidth<$current_length) {$fwidth=$current_length;}
2699: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2700: }
2701: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2702: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2703: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2704: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2705: } else {
2706: $data=~s/^\s+(\S.*)/$1/;
2707: $data=~s/(.*\S)\s+$/$1/;
2708: $data=~s/(\s)+/$1/;
2709: my ($current_length,$min_length)=(0,0);
2710: if ($data=~/\\vskip/) {
2711: my $newdata=$data;
2712: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2713: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2714: foreach my $elementdata (@newdata) {
2715: my $lengthnewdata=2.5*&LATEX_length($elementdata);
2716: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
2717: my @words=split(/ /,$elementdata);
2718: foreach my $word (@words) {
2719: my $lengthword=2.5*&LATEX_length($word);
2720: if ($min_length<$lengthword) {$min_length=$lengthword;}
2721: }
2722: }
2723: } else {
2724: $current_length=2.5*&LATEX_length($data);
2725: my @words=split(/ /,$data);
2726: foreach my $word (@words) {
2727: my $lengthword=2*&LATEX_length($word);
2728: if ($min_length<$lengthword) {$min_length=$lengthword;}
2729: }
2730: }
2731: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2732: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2733: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2734: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
2735: }
2736: }
2737: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
2738: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2739: }
2740: #make data bold
2741: $data='\textbf{'.$data.'}';
2742: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
2743: return'';
2744: }
2745:
1.122 albertel 2746: sub end_th {
1.130 sakharuk 2747: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 2748: my $currentstring = &end_p(); # Close any open <p> in the row.
1.325 albertel 2749: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 2750: $currentstring .= $token->[2];
1.122 albertel 2751: } elsif ($target eq 'tex') {
1.230 sakharuk 2752: $Apache::londefdef::TD_redirection =0;
2753: &end_th_tex($parstack,$parser,$safeeval);
1.122 albertel 2754: }
2755: return $currentstring;
2756: }
1.230 sakharuk 2757:
1.181 sakharuk 2758: #-- <img> tag (end tag forbidden)
1.249 foxr 2759: #
2760: # Render the <IMG> tag.
2761: # <IMG> has the following attributes (in addition to the
2762: # standard HTML ones:
2763: # TeXwrap - Governs how the tex target will try to wrap text around
2764: # horizontally aligned images.
2765: # TeXwidth - The width of the image when rendered for print (mm).
2766: # TeXheight - The height of the image when rendered for print (mm)
2767: # (Note there seems to also be support for this as a % of page size)
2768: #
1.122 albertel 2769: sub start_img {
1.299 albertel 2770: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 2771: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,
2772: undef,1);
1.325 albertel 2773: if (! $src &&
2774: ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex')
2775: ) {
1.299 albertel 2776: my $inside = &Apache::lonxml::get_all_text("/img",$parser,$style);
1.189 albertel 2777: return '';
2778: }
1.290 albertel 2779: &Apache::lonxml::extlink($src);
1.122 albertel 2780: my $currentstring = '';
2781: my $scaling = .3;
1.249 foxr 2782:
2783: # Render unto browsers that which are the browser's...
2784:
1.325 albertel 2785: if ($target eq 'web' || $target eq 'webgrade') {
1.267 albertel 2786: if ($env{'browser.imagesuppress'} ne 'on') {
1.322 albertel 2787: my $enc = ('yes' eq
2788: lc(&Apache::lonxml::get_param('encrypturl',$parstack,
2789: $safeeval)));
2790: $currentstring.=&Apache::lonenc::encrypt_ref($token,{'src'=>$src},
2791: $enc);
1.122 albertel 2792: } else {
1.322 albertel 2793: my $alttag = &Apache::lonxml::get_param('alt',$parstack,$safeeval,
2794: undef,1);
2795: if (!$alttag) {
2796: $alttag = &Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2797: $src);
1.51 sakharuk 2798: }
1.158 sakharuk 2799: $currentstring.='[IMAGE: '.$alttag.']';
1.1 sakharuk 2800: }
1.249 foxr 2801:
2802: # and render unto TeX that which is LaTeX
2803:
1.122 albertel 2804: } elsif ($target eq 'tex') {
1.248 foxr 2805: #
2806: # The alignment will require some superstructure to be put around
2807: # the \includegraphics stuff. At present we can only partially
2808: # simulate the alignments offered by html.
2809: #
2810: #
2811: my $align = lc(&Apache::lonxml::get_param('align',
2812: $parstack,
2813: $safeeval,
2814: undef,1));
2815: if(!$align) {
1.287 foxr 2816: $align = "bottom"; # This is html's default so it's ours too.
1.248 foxr 2817: }
2818: #
2819: &Apache::lonxml::debug("Alignemnt = $align");
2820: # LaTeX's image/text wrapping is really bad since it wants to
2821: # make figures float.
2822: # The user has the optional parameter (applicable only to l/r
2823: # alignment to use the picins/parpic directive to get wrapped text
2824: # this is also imperfect.. that's why we give them a choice...
2825: # so they can't yell at us for our choice.
2826: #
2827: my $latex_rendering = &Apache::lonxml::get_param('TeXwrap',
2828: $parstack,
2829: $safeeval,
2830: undef,0);
1.312 foxr 2831: # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering");
1.248 foxr 2832: if(!$latex_rendering) {
1.312 foxr 2833: $latex_rendering = "texwrap";
2834: }
2835: # using texwrap inside a table does not work. So, if after all of this,
2836: # texwrap is on, we turn it off if we detect we're in a table:
2837: #
2838: if (($latex_rendering eq 'texwrap') && &is_inside_of($tagstack, "table")) {
2839: $latex_rendering = 'parpic';
1.248 foxr 2840: }
1.323 foxr 2841:
1.312 foxr 2842: # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering image file: $src");
1.248 foxr 2843:
1.256 albertel 2844: #if original gif/jpg/png file exist do following:
1.266 albertel 2845: my $origsrc=$src;
1.256 albertel 2846: my ($path,$file) = &get_eps_image($src);
1.122 albertel 2847: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.261 foxr 2848: &Apache::lonxml::debug("path = $path file = $file src = $src");
1.192 sakharuk 2849: if (-e $src) {
1.261 foxr 2850: &Apache::lonxml::debug("$src exists");
1.256 albertel 2851: my ($height_param,$width_param)=
1.266 albertel 2852: &image_size($origsrc,0.3,$parstack,$safeeval);
1.262 foxr 2853: my $destpath = $path;
1.263 foxr 2854: $destpath =~ s/ /\_/g; # Spaces in path cause LaTex to vomit.
2855: my $destfile = $file;
2856: $destfile =~ s/ /\_/g;
1.266 albertel 2857: my $size;
2858: if ($width_param) { $size.='width='.$width_param.' mm,'; }
2859: if ($height_param) { $size.='height='.$height_param.' mm]'; }
2860: $size='['.$size;
2861: $size=~s/,$/]/;
1.262 foxr 2862: $currentstring .= '\graphicspath{{'.$destpath.'}}'
1.266 albertel 2863: .'\includegraphics'.$size.'{'.$destfile.'} ';
1.256 albertel 2864:
1.248 foxr 2865: # If there's an alignment specification we need to honor it here.
2866: # For the horizontal alignments, we will also honor the
2867: # value of the latex specfication. The default is parbox,
2868: # and that's used for illegal values too.
2869: #
2870: # Even though we set a default alignment value, the user
2871: # could have given us an illegal value. In that case we
2872: # just use the default alignment of bottom..
2873: if ($align eq "top") {
2874: $currentstring = '\raisebox{-'.$height_param.'mm}{'.$currentstring.'}';
2875: } elsif (($align eq "center") || ($align eq "middle")) { # Being kind
2876: my $offset = $height_param/2;
2877: $currentstring = '\raisebox{-'.$offset.'mm}{'.$currentstring.'}';
2878: } elsif ($align eq "left") {
2879: if ($latex_rendering eq "parpic") {
2880: $currentstring = '\parpic[l]{'.$currentstring.'}';
1.286 foxr 2881: } else { # wrapfig render
2882: $currentstring = '\begin{wrapfigure}{l}{'.$width_param.'mm}'
2883: .'\scalebox{1.0}{'.$currentstring.'}\end{wrapfigure}';
1.248 foxr 2884: }
2885: } elsif ($align eq "right") {
2886: if ($latex_rendering eq "parpic") {
2887: $currentstring = '\parpic[r]{'.$currentstring.'}';
1.286 foxr 2888: } else { # wrapfig rendering
2889: $currentstring = '\begin{wrapfigure}{r}{'.$width_param.'mm}'
2890: .'\scalebox{1.0}{'.$currentstring.'}\end{wrapfigure}';
2891:
1.248 foxr 2892: }
2893: } else { # Bottom is also default.
2894: # $currentstring = '\raisebox{'.$height_param.'mm}{'.$currentstring.'}';
2895: }
1.122 albertel 2896: } else {
1.261 foxr 2897: &Apache::lonxml::debug("$src does not exist");
1.122 albertel 2898: #original image file doesn't exist so check the alt attribute
2899: my $alt =
2900: &Apache::lonxml::get_param('alt',$parstack,$safeeval,undef,1);
2901: unless ($alt) {
2902: $alt=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
2903: }
2904:
1.256 albertel 2905: if ($alt) { $currentstring .= ' '.$alt.' '; }
1.59 sakharuk 2906: }
1.249 foxr 2907:
2908: # And here's where the semi-quote breaks down: allow the user
2909: # to edit the beast as well by rendering the problem for edit:
1.186 albertel 2910: } elsif ($target eq 'edit') {
2911: $currentstring .=&Apache::edit::tag_start($target,$token);
2912: $currentstring .=&Apache::edit::text_arg('Image Url:','src',$token,70).
2913: &Apache::edit::browse('src',undef,'alt').' '.
2914: &Apache::edit::search('src',undef,'alt').'<br />';
2915: $currentstring .=&Apache::edit::text_arg('Description:','alt',$token,70).'<br />';
2916: $currentstring .=&Apache::edit::text_arg('width (pixel):','width',$token,5);
2917: $currentstring .=&Apache::edit::text_arg('height (pixel):','height',$token,5).'<br />';
2918: $currentstring .=&Apache::edit::text_arg('TeXwidth (mm):','TeXwidth',$token,5);
2919: $currentstring .=&Apache::edit::text_arg('TeXheight (mm):','TeXheight',$token,5);
1.234 albertel 2920: $currentstring .=&Apache::edit::select_arg('Alignment:','align',
2921: ['','bottom','middle','top','left','right'],$token,5);
1.249 foxr 2922: $currentstring .=&Apache::edit::select_arg('TeXwrap:', 'TeXwrap',
2923: ['', 'parbox', 'parpic'], $token, 2);
1.332 www 2924: $currentstring .=&Apache::edit::select_arg('Encrypt URL:','encrypturl',
1.322 albertel 2925: ['no','yes'], $token, 2);
1.186 albertel 2926: $currentstring .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1.249 foxr 2927: my $src= &Apache::lonxml::get_param('src',$parstack,$safeeval);
2928: my $alt= &Apache::lonxml::get_param('alt',$parstack,$safeeval);
2929: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
2930: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
2931:
2932:
1.186 albertel 2933: $currentstring .= '<img src="'.$src.'" alt="'.$alt.'" ';
2934: if ($width) { $currentstring.=' width="'.$width.'" '; }
2935: if ($height) { $currentstring.=' height="'.$height.'" '; }
2936: $currentstring .= ' />';
2937: } elsif ($target eq 'modified') {
1.210 albertel 2938: my ($osrc,$owidth,$oheight)=
2939: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2940: my $ctag=&Apache::edit::get_new_args($token,$parstack,
1.234 albertel 2941: $safeeval,'src','alt','align',
1.249 foxr 2942: 'TeXwidth','TeXheight', 'TeXwrap',
1.322 albertel 2943: 'width','height','encrypturl');
1.210 albertel 2944: my ($nsrc,$nwidth,$nheight)=
2945: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2946: my $loc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$nsrc);
2947: &image_replication($loc);
2948: my ($iwidth,$iheight);
2949: if (-e $loc) {
2950: my $image = Image::Magick->new;
2951: $image->Read($loc);
2952: ($iwidth, $iheight) = ($image->Get('width'),
2953: $image->Get('height'));
2954: }
2955: if ($osrc ne $nsrc || (!$nwidth && !$nheight)) {
2956: # changed image or no size specified,
2957: # if they didn't explicitly change the
2958: # width or height use the ones from the image
2959: if ($iwidth && $iheight) {
2960: if ($owidth == $nwidth || (!$nwidth && !$nheight)) {
2961: $token->[2]{'width'} = $iwidth;$ctag=1;
2962: }
2963: if ($oheight == $nheight || (!$nwidth && !$nheight)) {
2964: $token->[2]{'height'}=$iheight;$ctag=1;
1.186 albertel 2965: }
2966: }
2967: }
1.210 albertel 2968: my ($cwidth,$cheight)=($token->[2]{'width'},$token->[2]{'height'});
2969: # if we don't have a width or height
2970: if ($iwidth && $cwidth && !$cheight) {
2971: $token->[2]{'height'}=int(($cwidth/$iwidth)*$iheight);$ctag=1;
2972: }
2973: if ($iheight && $cheight && !$cwidth) {
2974: $token->[2]{'width'}=int(($cheight/$iheight)*$iwidth);$ctag=1;
2975: }
2976: if ($ctag) {$currentstring=&Apache::edit::rebuild_tag($token);}
1.122 albertel 2977: }
1.261 foxr 2978:
1.122 albertel 2979: return $currentstring;
2980: }
2981:
2982: sub end_img {
2983: my ($target,$token) = @_;
2984: my $currentstring = '';
1.325 albertel 2985: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2986: $currentstring = $token->[2];
2987: } elsif ($target eq 'tex') {
2988: $currentstring = '';
2989: }
2990: return $currentstring;
2991: }
2992:
1.181 sakharuk 2993: #-- <applet> tag (end tag required)
1.122 albertel 2994: sub start_applet {
2995: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2996:
2997: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,undef,1);
1.290 albertel 2998: &Apache::lonxml::extlink($code);
1.122 albertel 2999: my $archive=&Apache::lonxml::get_param('archive',$parstack,$safeeval,
3000: undef,1);
1.290 albertel 3001: &Apache::lonxml::extlink($archive);
1.122 albertel 3002: my $currentstring = '';
1.325 albertel 3003: if ($target eq 'web' || $target eq 'webgrade') {
1.267 albertel 3004: if ($env{'browser.appletsuppress'} ne 'on') {
1.250 albertel 3005: $currentstring = &Apache::lonenc::encrypt_ref($token,
3006: {'code'=>$code,
3007: 'archive'=>$archive}
3008: );
1.122 albertel 3009: } else {
3010: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
3011: $safeeval,undef,1);
3012: unless ($alttag) {
3013: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
3014: $code);
1.44 sakharuk 3015: }
1.122 albertel 3016: $currentstring='[APPLET: '.$alttag.']';
1.1 sakharuk 3017: }
1.122 albertel 3018: } elsif ($target eq 'tex') {
1.177 albertel 3019: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
3020: $safeeval,undef,1);
3021: unless ($alttag) {
3022: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,
3023: undef,1);
3024: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
3025: $code);
1.175 sakharuk 3026: }
1.177 albertel 3027: $currentstring.='\begin{center} \fbox{Java Applet: '.$alttag.
3028: '.}\end{center}';
1.122 albertel 3029: }
3030: return $currentstring;
3031: }
3032:
3033: sub end_applet {
3034: my ($target,$token) = @_;
3035: my $currentstring = '';
1.325 albertel 3036: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3037: $currentstring = $token->[2];
3038: } elsif ($target eq 'tex') {
3039: }
3040: return $currentstring;
3041: }
3042:
1.181 sakharuk 3043: #-- <embed> tag (end tag optional/required)
1.122 albertel 3044: sub start_embed {
3045: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3046: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
1.290 albertel 3047: &Apache::lonxml::extlink($src);
1.122 albertel 3048: my $currentstring = '';
1.325 albertel 3049: if ($target eq 'web' || $target eq 'webgrade') {
1.267 albertel 3050: if ($env{'browser.embedsuppress'} ne 'on') {
1.250 albertel 3051: $currentstring=&Apache::lonenc::encrypt_ref($token,{'src'=>$src});
1.122 albertel 3052: } else {
3053: my $alttag=&Apache::lonxml::get_param
3054: ('alt',$parstack,$safeeval,undef,1);
3055: unless ($alttag) {
3056: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
1.42 albertel 3057: }
1.122 albertel 3058: $currentstring='[EMBED: '.$alttag.']';
1.10 www 3059: }
1.122 albertel 3060: } elsif ($target eq 'tex') {
3061: }
3062: return $currentstring;
3063: }
3064:
3065: sub end_embed {
3066: my ($target,$token) = @_;
3067: my $currentstring = '';
1.325 albertel 3068: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3069: $currentstring = $token->[2];
1.175 sakharuk 3070: } elsif ($target eq 'tex') {
1.122 albertel 3071: }
3072: return $currentstring;
3073: }
3074:
1.181 sakharuk 3075: #-- <param> tag (end tag forbidden)
1.122 albertel 3076: sub start_param {
3077: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.290 albertel 3078: if (&Apache::lonxml::get_param('name',$parstack,
3079: $safeeval,undef,1)=~/^cabbase$/i) {
3080: my $value=&Apache::lonxml::get_param('value',$parstack,
3081: $safeeval,undef,1);
3082: &Apache::lonxml::extlink($value);
3083: }
3084:
3085: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
3086: &Apache::lonxml::extlink($src);
1.122 albertel 3087: my $currentstring = '';
1.325 albertel 3088: if ($target eq 'web' || $target eq 'webgrade') {
1.250 albertel 3089: my %toconvert;
3090: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
3091: if ($src) { $toconvert{'src'}= $src; }
3092: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval,
3093: undef,1);
1.251 albertel 3094: if ($name=~/^cabbase$/i) {
3095: $toconvert{'value'}=&Apache::lonxml::get_param('value',$parstack,
3096: $safeeval,undef,1);
3097: }
1.250 albertel 3098: $currentstring = &Apache::lonenc::encrypt_ref($token,\%toconvert);
1.122 albertel 3099: } elsif ($target eq 'tex') {
3100: }
3101: return $currentstring;
3102: }
3103:
3104: sub end_param {
3105: my ($target,$token) = @_;
3106: my $currentstring = '';
1.325 albertel 3107: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3108: $currentstring = $token->[2];
3109: } elsif ($target eq 'tex') {
3110: }
3111: return $currentstring;
3112: }
3113:
3114: #-- <allow> tag
3115: sub start_allow {
3116: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3117: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
1.290 albertel 3118: &Apache::lonxml::extlink($src);
3119:
1.241 albertel 3120: if ($target eq 'tex') { &image_replication($src); }
1.122 albertel 3121: my $result;
3122: if ($target eq 'edit') {
3123: $result .=&Apache::edit::tag_start($target,$token);
3124: $result .=&Apache::edit::text_arg('File Spec:','src',$token,70);
3125: $result .=&Apache::edit::end_row();#.&Apache::edit::start_spanning_row();
3126: } elsif ($target eq 'modified') {
3127: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
3128: $safeeval,'src');
3129: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
3130: }
3131: return $result;
3132: }
3133:
3134: sub end_allow {
3135: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3136: if ( $target eq 'edit') { return (&Apache::edit::end_table()); }
3137: return '';
3138: }
1.119 www 3139:
1.181 sakharuk 3140: #-- Frames (end tag required)
3141: #-- <frameset>
1.122 albertel 3142: sub start_frameset {
3143: my ($target,$token) = @_;
1.277 foxr 3144: my $currentstring = ''; # Close any pending para.
1.325 albertel 3145: if ($target eq 'web' || $target eq 'webgrade') {
1.328 albertel 3146: $currentstring =
3147: &Apache::loncommon::start_page($Apache::londefdef::title,
3148: $Apache::londefdef::head,
3149: {'add_entries' => $token->[2],
3150: 'no_title' => 1,
3151: 'force_register' => 1,
3152: 'frameset' => 1,});
3153:
1.122 albertel 3154: }
3155: return $currentstring;
3156: }
3157:
3158: sub end_frameset {
3159: my ($target,$token) = @_;
3160: my $currentstring = '';
1.325 albertel 3161: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3162: $currentstring = $token->[2];
3163: }
3164: return $currentstring;
3165: }
1.162 sakharuk 3166:
1.181 sakharuk 3167: #-- <xmp> (end tag required)
1.162 sakharuk 3168: sub start_xmp {
3169: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3170: my $currentstring = '';
1.325 albertel 3171: if ($target eq 'web' || $target eq 'webgrade') {
1.162 sakharuk 3172: $currentstring .= $token->[4];
3173: } elsif ($target eq 'tex') {
3174: $currentstring .= '\begin{verbatim}';
3175: }
3176: return $currentstring;
3177: }
3178:
3179: sub end_xmp {
3180: my ($target,$token) = @_;
3181: my $currentstring = '';
1.325 albertel 3182: if ($target eq 'web' || $target eq 'webgrade') {
1.162 sakharuk 3183: $currentstring .= $token->[2];
3184: } elsif ($target eq 'tex') {
3185: $currentstring .= '\end{verbatim}';
3186: }
3187: return $currentstring;
3188: }
3189:
1.181 sakharuk 3190: #-- <pre> (end tag required)
1.122 albertel 3191: sub start_pre {
1.126 sakharuk 3192: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 3193: my $currentstring = &end_p(); # close off pending <p>
1.325 albertel 3194: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3195: $currentstring .= $token->[4];
3196: } elsif ($target eq 'tex') {
1.136 sakharuk 3197: $currentstring .= '\begin{verbatim}';
1.319 albertel 3198: &Apache::lonxml::disable_LaTeX_substitutions();
1.122 albertel 3199: }
3200: return $currentstring;
3201: }
3202:
3203: sub end_pre {
3204: my ($target,$token) = @_;
3205: my $currentstring = '';
1.325 albertel 3206: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3207: $currentstring .= $token->[2];
3208: } elsif ($target eq 'tex') {
1.136 sakharuk 3209: $currentstring .= '\end{verbatim}';
1.319 albertel 3210: &Apache::lonxml::enable_LaTeX_substitutions();
1.122 albertel 3211: }
3212: return $currentstring;
3213: }
3214:
3215: #-- <insert>
3216: sub start_insert {
3217: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3218: my $currentstring = '';
1.325 albertel 3219: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3220: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
3221: $currentstring .= '<b>'.$display.'</b>';;
3222: }
3223: return $currentstring;
3224: }
3225:
3226: sub end_insert {
3227: my ($target,$token) = @_;
3228: my $currentstring = '';
1.325 albertel 3229: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3230: $currentstring .= '';
3231: }
3232: return $currentstring;
3233: }
3234:
3235: #-- <externallink>
3236: sub start_externallink {
3237: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3238: my $currentstring = '';
1.325 albertel 3239: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3240: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
3241: $currentstring .= '<b>'.$display.'</b>';;
3242: }
3243: return $currentstring;
3244: }
3245:
3246: sub end_externallink {
3247: my ($target,$token) = @_;
3248: my $currentstring = '';
1.325 albertel 3249: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3250: $currentstring .= '';
3251: }
3252: return $currentstring;
3253: }
3254:
3255: #-- <blankspace heigth="">
3256: sub start_blankspace {
3257: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 3258: my $currentstring = &end_p(); # closes off any unclosed <p>
1.122 albertel 3259: if ($target eq 'tex') {
3260: my $howmuch = &Apache::lonxml::get_param('heigth',$parstack,$safeeval,undef,1);
3261: $currentstring .= '\vskip '.$howmuch.' ';
3262: }
3263: return $currentstring;
3264: }
3265:
3266: sub end_blankspace {
3267: my ($target,$token) = @_;
3268: my $currentstring = '';
3269: if ($target eq 'tex') {
3270: $currentstring .= '';
3271: }
3272: return $currentstring;
3273: }
3274:
1.181 sakharuk 3275: #-- <abbr> tag (end tag required)
1.122 albertel 3276: sub start_abbr {
3277: my ($target,$token) = @_;
3278: my $currentstring = '';
1.325 albertel 3279: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3280: $currentstring = $token->[4];
3281: }
3282: return $currentstring;
3283: }
3284:
3285: sub end_abbr {
3286: my ($target,$token) = @_;
3287: my $currentstring = '';
1.325 albertel 3288: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3289: $currentstring = $token->[2];
3290: }
3291: return $currentstring;
3292: }
3293:
1.181 sakharuk 3294: #-- <acronym> tag (end tag required)
1.122 albertel 3295: sub start_acronym {
3296: my ($target,$token) = @_;
3297: my $currentstring = '';
1.325 albertel 3298: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3299: $currentstring = $token->[4];
3300: }
3301: return $currentstring;
3302: }
3303:
3304: sub end_acronym {
3305: my ($target,$token) = @_;
3306: my $currentstring = '';
1.325 albertel 3307: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3308: $currentstring = $token->[2];
3309: }
3310: return $currentstring;
3311: }
3312:
1.181 sakharuk 3313: #-- <area> tag (end tag forbidden)
1.122 albertel 3314: sub start_area {
3315: my ($target,$token) = @_;
3316: my $currentstring = '';
1.325 albertel 3317: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3318: $currentstring = $token->[4];
3319: }
3320: return $currentstring;
3321: }
3322:
3323: sub end_area {
3324: my ($target,$token) = @_;
3325: my $currentstring = '';
1.325 albertel 3326: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3327: $currentstring = $token->[2];
3328: }
3329: return $currentstring;
3330: }
3331:
1.181 sakharuk 3332: #-- <base> tag (end tag forbidden)
1.122 albertel 3333: sub start_base {
3334: my ($target,$token) = @_;
3335: my $currentstring = '';
1.325 albertel 3336: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3337: $currentstring = $token->[4];
1.161 sakharuk 3338: }
1.122 albertel 3339: return $currentstring;
3340: }
3341:
3342: sub end_base {
3343: my ($target,$token) = @_;
3344: my $currentstring = '';
1.325 albertel 3345: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3346: $currentstring = $token->[2];
3347: }
3348: return $currentstring;
3349: }
3350:
1.181 sakharuk 3351: #-- <bdo> tag (end tag required)
1.122 albertel 3352: sub start_bdo {
3353: my ($target,$token) = @_;
3354: my $currentstring = '';
1.325 albertel 3355: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3356: $currentstring = $token->[4];
3357: }
3358: return $currentstring;
3359: }
3360:
3361: sub end_bdo {
3362: my ($target,$token) = @_;
3363: my $currentstring = '';
1.325 albertel 3364: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3365: $currentstring = $token->[2];
3366: }
3367: return $currentstring;
3368: }
3369:
1.181 sakharuk 3370: #-- <bgsound> tag (end tag optional)
1.122 albertel 3371: sub start_bgsound {
3372: my ($target,$token) = @_;
3373: my $currentstring = '';
1.325 albertel 3374: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3375: $currentstring = $token->[4];
3376: }
3377: return $currentstring;
3378: }
3379:
3380: sub end_bgsound {
3381: my ($target,$token) = @_;
3382: my $currentstring = '';
1.325 albertel 3383: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3384: $currentstring = $token->[2];
3385: }
3386: return $currentstring;
3387: }
3388:
1.181 sakharuk 3389: #-- <blink> tag (end tag required)
1.122 albertel 3390: sub start_blink {
3391: my ($target,$token) = @_;
3392: my $currentstring = '';
1.325 albertel 3393: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3394: $currentstring = $token->[4];
3395: }
3396: return $currentstring;
3397: }
3398:
3399: sub end_blink {
3400: my ($target,$token) = @_;
3401: my $currentstring = '';
1.325 albertel 3402: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3403: $currentstring = $token->[2];
3404: }
3405: return $currentstring;
3406: }
3407:
1.181 sakharuk 3408: #-- <blockquote> tag (end tag required)
1.122 albertel 3409: sub start_blockquote {
3410: my ($target,$token) = @_;
1.279 foxr 3411: my $currentstring = &end_p(); # Close any unclosed <p>
1.325 albertel 3412: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 3413: $currentstring .= $token->[4];
1.122 albertel 3414: }
3415: return $currentstring;
3416: }
3417:
3418: sub end_blockquote {
3419: my ($target,$token) = @_;
3420: my $currentstring = '';
1.325 albertel 3421: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3422: $currentstring = $token->[2];
3423: }
3424: return $currentstring;
3425: }
3426:
1.181 sakharuk 3427: #-- <button> tag (end tag required)
1.122 albertel 3428: sub start_button {
3429: my ($target,$token) = @_;
3430: my $currentstring = '';
1.325 albertel 3431: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3432: $currentstring = $token->[4];
3433: }
3434: return $currentstring;
3435: }
3436:
3437: sub end_button {
3438: my ($target,$token) = @_;
3439: my $currentstring = '';
1.325 albertel 3440: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3441: $currentstring = $token->[2];
3442: }
3443: return $currentstring;
3444: }
3445:
1.181 sakharuk 3446: #-- <caption> tag (end tag required)
1.122 albertel 3447: sub start_caption {
3448: my ($target,$token) = @_;
3449: my $currentstring = '';
1.325 albertel 3450: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3451: $currentstring = $token->[4];
3452: }
3453: return $currentstring;
3454: }
3455:
3456: sub end_caption {
3457: my ($target,$token) = @_;
3458: my $currentstring = '';
1.325 albertel 3459: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3460: $currentstring = $token->[2];
3461: }
3462: return $currentstring;
3463: }
3464:
1.181 sakharuk 3465: #-- <col> tag (end tag forbdden)
1.122 albertel 3466: sub start_col {
3467: my ($target,$token) = @_;
3468: my $currentstring = '';
1.325 albertel 3469: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3470: $currentstring = $token->[4];
3471: }
3472: return $currentstring;
3473: }
3474:
3475: sub end_col {
3476: my ($target,$token) = @_;
3477: my $currentstring = '';
1.325 albertel 3478: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3479: $currentstring = $token->[2];
3480: }
3481: return $currentstring;
3482: }
3483:
1.181 sakharuk 3484: #-- <colgroup> tag (end tag optional)
1.122 albertel 3485: sub start_colgroup {
3486: my ($target,$token) = @_;
3487: my $currentstring = '';
1.325 albertel 3488: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3489: $currentstring = $token->[4];
3490: }
3491: return $currentstring;
3492: }
3493:
3494: sub end_colgroup {
3495: my ($target,$token) = @_;
3496: my $currentstring = '';
1.325 albertel 3497: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3498: $currentstring = $token->[2];
3499: }
3500: return $currentstring;
3501: }
3502:
1.181 sakharuk 3503: #-- <del> tag (end tag required)
1.122 albertel 3504: sub start_del {
3505: my ($target,$token) = @_;
3506: my $currentstring = '';
1.325 albertel 3507: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3508: $currentstring = $token->[4];
3509: }
3510: return $currentstring;
3511: }
3512:
3513: sub end_del {
3514: my ($target,$token) = @_;
3515: my $currentstring = '';
1.325 albertel 3516: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3517: $currentstring = $token->[2];
3518: }
3519: return $currentstring;
3520: }
3521:
1.181 sakharuk 3522: #-- <fieldset> tag (end tag required)
1.122 albertel 3523: sub start_fieldset {
3524: my ($target,$token) = @_;
3525: my $currentstring = '';
1.325 albertel 3526: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3527: $currentstring = $token->[4];
3528: }
3529: return $currentstring;
3530: }
3531:
3532: sub end_fieldset {
3533: my ($target,$token) = @_;
3534: my $currentstring = '';
1.325 albertel 3535: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3536: $currentstring = $token->[2];
3537: }
3538: return $currentstring;
3539: }
3540:
1.181 sakharuk 3541: #-- <frame> tag (end tag forbidden)
1.122 albertel 3542: sub start_frame {
3543: my ($target,$token) = @_;
3544: my $currentstring = '';
1.325 albertel 3545: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3546: $currentstring = $token->[4];
3547: }
3548: return $currentstring;
3549: }
3550:
3551: sub end_frame {
3552: my ($target,$token) = @_;
3553: my $currentstring = '';
1.325 albertel 3554: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3555: $currentstring = $token->[2];
3556: }
3557: return $currentstring;
3558: }
3559:
1.181 sakharuk 3560: #-- <iframe> tag (end tag required)
1.122 albertel 3561: sub start_iframe {
3562: my ($target,$token) = @_;
3563: my $currentstring = '';
1.325 albertel 3564: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3565: $currentstring = $token->[4];
3566: }
3567: return $currentstring;
3568: }
3569:
3570: sub end_iframe {
3571: my ($target,$token) = @_;
3572: my $currentstring = '';
1.325 albertel 3573: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3574: $currentstring = $token->[2];
3575: }
3576: return $currentstring;
3577: }
3578:
1.181 sakharuk 3579: #-- <ins> tag (end tag required)
1.122 albertel 3580: sub start_ins {
3581: my ($target,$token) = @_;
3582: my $currentstring = '';
1.325 albertel 3583: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3584: $currentstring = $token->[4];
3585: }
3586: return $currentstring;
3587: }
3588:
3589: sub end_ins {
3590: my ($target,$token) = @_;
3591: my $currentstring = '';
1.325 albertel 3592: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3593: $currentstring = $token->[2];
3594: }
3595: return $currentstring;
3596: }
3597:
1.181 sakharuk 3598: #-- <isindex> tag (end tag forbidden)
1.122 albertel 3599: sub start_isindex {
3600: my ($target,$token) = @_;
3601: my $currentstring = '';
1.325 albertel 3602: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3603: $currentstring = $token->[4];
3604: }
3605: return $currentstring;
3606: }
3607:
3608: sub end_isindex {
3609: my ($target,$token) = @_;
3610: my $currentstring = '';
1.325 albertel 3611: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3612: $currentstring = $token->[2];
3613: }
3614: return $currentstring;
3615: }
3616:
1.181 sakharuk 3617: #-- <keygen> tag (end tag forbidden)
1.122 albertel 3618: sub start_keygen {
3619: my ($target,$token) = @_;
3620: my $currentstring = '';
1.325 albertel 3621: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3622: $currentstring = $token->[4];
3623: }
3624: return $currentstring;
3625: }
3626:
3627: sub end_keygen {
3628: my ($target,$token) = @_;
3629: my $currentstring = '';
1.325 albertel 3630: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3631: $currentstring = $token->[2];
3632: }
3633: return $currentstring;
3634: }
3635:
3636: #-- <label> tag
3637: sub start_label {
3638: my ($target,$token) = @_;
3639: my $currentstring = '';
1.325 albertel 3640: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3641: $currentstring = $token->[4];
3642: }
3643: return $currentstring;
3644: }
3645:
3646: sub end_label {
3647: my ($target,$token) = @_;
3648: my $currentstring = '';
1.325 albertel 3649: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3650: $currentstring = $token->[2];
3651: }
3652: return $currentstring;
3653: }
3654:
1.181 sakharuk 3655: #-- <layer> tag (end tag required)
1.122 albertel 3656: sub start_layer {
3657: my ($target,$token) = @_;
3658: my $currentstring = '';
1.325 albertel 3659: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3660: $currentstring = $token->[4];
3661: }
3662: return $currentstring;
3663: }
3664:
3665: sub end_layer {
3666: my ($target,$token) = @_;
3667: my $currentstring = '';
1.325 albertel 3668: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3669: $currentstring = $token->[2];
3670: }
3671: return $currentstring;
3672: }
3673:
1.181 sakharuk 3674: #-- <legend> tag (end tag required)
1.122 albertel 3675: sub start_legend {
3676: my ($target,$token) = @_;
3677: my $currentstring = '';
1.325 albertel 3678: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3679: $currentstring = $token->[4];
3680: }
3681: return $currentstring;
3682: }
3683:
3684: sub end_legend {
3685: my ($target,$token) = @_;
3686: my $currentstring = '';
1.325 albertel 3687: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3688: $currentstring = $token->[2];
3689: }
3690: return $currentstring;
3691: }
3692:
1.181 sakharuk 3693: #-- <link> tag (end tag forbidden)
1.122 albertel 3694: sub start_link {
1.292 albertel 3695: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 3696: my $currentstring = '';
1.324 albertel 3697: if ($target eq 'web' || $target eq 'webgrade') {
1.291 albertel 3698: my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
3699: undef,1);
3700: &Apache::lonxml::extlink($href);
1.122 albertel 3701: $currentstring = $token->[4];
3702: }
3703: return $currentstring;
3704: }
3705:
3706: sub end_link {
3707: my ($target,$token) = @_;
3708: my $currentstring = '';
1.325 albertel 3709: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3710: $currentstring = $token->[2];
3711: }
3712: return $currentstring;
3713: }
3714:
1.181 sakharuk 3715: #-- <marquee> tag (end tag optional)
1.122 albertel 3716: sub start_marquee {
3717: my ($target,$token) = @_;
3718: my $currentstring = '';
1.325 albertel 3719: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3720: $currentstring = $token->[4];
3721: }
3722: return $currentstring;
3723: }
3724:
3725: sub end_marquee {
3726: my ($target,$token) = @_;
3727: my $currentstring = '';
1.325 albertel 3728: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3729: $currentstring = $token->[2];
3730: }
3731: return $currentstring;
3732: }
3733:
1.179 sakharuk 3734: #-- <multicol> tag (end tag required)
3735: sub start_multicol {
1.122 albertel 3736: my ($target,$token) = @_;
1.279 foxr 3737: my $currentstring = &end_p(); # Close any pending <p>
1.325 albertel 3738: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 3739: $currentstring .= $token->[4];
1.122 albertel 3740: }
3741: return $currentstring;
3742: }
3743:
1.179 sakharuk 3744: sub end_multicol {
1.122 albertel 3745: my ($target,$token) = @_;
3746: my $currentstring = '';
1.325 albertel 3747: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3748: $currentstring = $token->[2];
3749: }
3750: return $currentstring;
3751: }
3752:
1.179 sakharuk 3753: #-- <nobr> tag (end tag required)
1.122 albertel 3754: sub start_nobr {
3755: my ($target,$token) = @_;
3756: my $currentstring = '';
1.325 albertel 3757: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3758: $currentstring = $token->[4];
1.179 sakharuk 3759: } elsif ($target eq 'tex') {
3760: $currentstring='\mbox{';
3761: }
1.122 albertel 3762: return $currentstring;
3763: }
3764:
3765: sub end_nobr {
3766: my ($target,$token) = @_;
3767: my $currentstring = '';
1.325 albertel 3768: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3769: $currentstring = $token->[2];
1.179 sakharuk 3770: } elsif ($target eq 'tex') {
3771: $currentstring='}';
3772: }
1.122 albertel 3773: return $currentstring;
3774: }
3775:
1.179 sakharuk 3776: #-- <noembed> tag (end tag required)
1.122 albertel 3777: sub start_noembed {
3778: my ($target,$token) = @_;
3779: my $currentstring = '';
1.325 albertel 3780: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3781: $currentstring = $token->[4];
3782: }
3783: return $currentstring;
3784: }
3785:
3786: sub end_noembed {
3787: my ($target,$token) = @_;
3788: my $currentstring = '';
1.325 albertel 3789: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3790: $currentstring = $token->[2];
3791: }
3792: return $currentstring;
3793: }
3794:
1.179 sakharuk 3795: #-- <noframes> tag (end tag required)
1.122 albertel 3796: sub start_noframes {
3797: my ($target,$token) = @_;
3798: my $currentstring = '';
1.325 albertel 3799: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3800: $currentstring = $token->[4];
3801: }
3802: return $currentstring;
3803: }
3804:
3805: sub end_noframes {
3806: my ($target,$token) = @_;
3807: my $currentstring = '';
1.325 albertel 3808: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3809: $currentstring = $token->[2];
3810: }
3811: return $currentstring;
3812: }
3813:
1.179 sakharuk 3814: #-- <nolayer> tag (end tag required)
1.122 albertel 3815: sub start_nolayer {
3816: my ($target,$token) = @_;
3817: my $currentstring = '';
1.325 albertel 3818: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3819: $currentstring = $token->[4];
3820: }
3821: return $currentstring;
3822: }
3823:
3824: sub end_nolayer {
3825: my ($target,$token) = @_;
3826: my $currentstring = '';
1.325 albertel 3827: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3828: $currentstring = $token->[2];
3829: }
3830: return $currentstring;
3831: }
3832:
1.179 sakharuk 3833: #-- <noscript> tag (end tag required)
1.122 albertel 3834: sub start_noscript {
3835: my ($target,$token) = @_;
3836: my $currentstring = '';
1.325 albertel 3837: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3838: $currentstring = $token->[4];
3839: }
3840: return $currentstring;
3841: }
3842:
3843: sub end_noscript {
3844: my ($target,$token) = @_;
3845: my $currentstring = '';
1.325 albertel 3846: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3847: $currentstring = $token->[2];
3848: }
3849: return $currentstring;
3850: }
3851:
1.179 sakharuk 3852: #-- <object> tag (end tag required)
1.122 albertel 3853: sub start_object {
3854: my ($target,$token) = @_;
3855: my $currentstring = '';
1.325 albertel 3856: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3857: $currentstring = $token->[4];
3858: }
3859: return $currentstring;
3860: }
3861:
3862: sub end_object {
3863: my ($target,$token) = @_;
3864: my $currentstring = '';
1.325 albertel 3865: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3866: $currentstring = $token->[2];
3867: }
3868: return $currentstring;
3869: }
3870:
1.179 sakharuk 3871: #-- <optgroup> tag (end tag required)
1.122 albertel 3872: sub start_optgroup {
3873: my ($target,$token) = @_;
3874: my $currentstring = '';
1.325 albertel 3875: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3876: $currentstring = $token->[4];
3877: }
3878: return $currentstring;
3879: }
3880:
3881: sub end_optgroup {
3882: my ($target,$token) = @_;
3883: my $currentstring = '';
1.325 albertel 3884: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3885: $currentstring = $token->[2];
3886: }
3887: return $currentstring;
3888: }
3889:
1.179 sakharuk 3890: #-- <samp> tag (end tag required)
1.122 albertel 3891: sub start_samp {
3892: my ($target,$token) = @_;
3893: my $currentstring = '';
1.325 albertel 3894: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3895: $currentstring = $token->[4];
1.179 sakharuk 3896: } elsif ($target eq 'tex') {
3897: $currentstring='\texttt{';
3898: }
1.122 albertel 3899: return $currentstring;
3900: }
3901:
3902: sub end_samp {
3903: my ($target,$token) = @_;
3904: my $currentstring = '';
1.325 albertel 3905: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3906: $currentstring = $token->[2];
1.179 sakharuk 3907: } elsif ($target eq 'tex') {
3908: $currentstring='}';
3909: }
1.122 albertel 3910: return $currentstring;
3911: }
3912:
3913: #-- <server> tag
3914: sub start_server {
3915: my ($target,$token) = @_;
3916: my $currentstring = '';
1.325 albertel 3917: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3918: $currentstring = $token->[4];
3919: }
3920: return $currentstring;
3921: }
3922:
3923: sub end_server {
3924: my ($target,$token) = @_;
3925: my $currentstring = '';
1.325 albertel 3926: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3927: $currentstring = $token->[2];
3928: }
3929: return $currentstring;
3930: }
3931:
1.179 sakharuk 3932: #-- <spacer> tag (end tag forbidden)
1.122 albertel 3933: sub start_spacer {
3934: my ($target,$token) = @_;
1.279 foxr 3935: my $currentstring = &end_p(); # Close off any open <p> tag.
1.325 albertel 3936: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 3937: $currentstring .= $token->[4];
1.122 albertel 3938: }
3939: return $currentstring;
3940: }
3941:
3942: sub end_spacer {
3943: my ($target,$token) = @_;
3944: my $currentstring = '';
1.325 albertel 3945: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3946: $currentstring = $token->[2];
3947: }
3948: return $currentstring;
3949: }
3950:
1.179 sakharuk 3951: #-- <span> tag (end tag required)
1.122 albertel 3952: sub start_span {
3953: my ($target,$token) = @_;
3954: my $currentstring = '';
1.325 albertel 3955: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3956: $currentstring = $token->[4];
3957: }
3958: return $currentstring;
3959: }
3960:
3961: sub end_span {
3962: my ($target,$token) = @_;
3963: my $currentstring = '';
1.325 albertel 3964: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3965: $currentstring = $token->[2];
3966: }
3967: return $currentstring;
3968: }
3969:
1.179 sakharuk 3970: #-- <tbody> tag (end tag optional)
1.122 albertel 3971: sub start_tbody {
3972: my ($target,$token) = @_;
3973: my $currentstring = '';
1.325 albertel 3974: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3975: $currentstring = $token->[4];
3976: }
3977: return $currentstring;
3978: }
3979:
3980: sub end_tbody {
3981: my ($target,$token) = @_;
3982: my $currentstring = '';
1.325 albertel 3983: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3984: $currentstring = $token->[2];
3985: }
3986: return $currentstring;
3987: }
3988:
1.166 sakharuk 3989: #-- <tfoot> tag (end tag optional)
1.122 albertel 3990: sub start_tfoot {
3991: my ($target,$token) = @_;
3992: my $currentstring = '';
1.325 albertel 3993: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3994: $currentstring = $token->[4];
3995: }
3996: return $currentstring;
3997: }
3998:
3999: sub end_tfoot {
4000: my ($target,$token) = @_;
4001: my $currentstring = '';
1.325 albertel 4002: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4003: $currentstring = $token->[2];
4004: }
4005: return $currentstring;
4006: }
4007:
1.166 sakharuk 4008: #-- <thead> tag (end tag optional)
1.122 albertel 4009: sub start_thead {
4010: my ($target,$token) = @_;
4011: my $currentstring = '';
1.325 albertel 4012: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4013: $currentstring = $token->[4];
4014: }
4015: return $currentstring;
4016: }
1.10 www 4017:
1.122 albertel 4018: sub end_thead {
4019: my ($target,$token) = @_;
4020: my $currentstring = '';
1.325 albertel 4021: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4022: $currentstring = $token->[2];
4023: }
4024: return $currentstring;
4025: }
1.119 www 4026:
1.122 albertel 4027: #-- <var> tag
4028: sub start_var {
1.44 sakharuk 4029: my ($target,$token) = @_;
4030: my $currentstring = '';
1.325 albertel 4031: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4032: $currentstring = $token->[4];
1.163 sakharuk 4033: } elsif ($target eq 'tex') {
4034: $currentstring = '\textit{';
4035: }
1.44 sakharuk 4036: return $currentstring;
4037: }
1.10 www 4038:
1.122 albertel 4039: sub end_var {
4040: my ($target,$token) = @_;
1.44 sakharuk 4041: my $currentstring = '';
1.325 albertel 4042: if ($target eq 'web' || $target eq 'webgrade') {
1.163 sakharuk 4043: $currentstring = $token->[2];
4044: } elsif ($target eq 'tex') {
4045: $currentstring = '}';
1.44 sakharuk 4046: }
4047: return $currentstring;
4048: }
1.119 www 4049:
1.163 sakharuk 4050: #-- <wbr> tag (end tag forbidden)
1.122 albertel 4051: sub start_wbr {
4052: my ($target,$token) = @_;
4053: my $currentstring = '';
1.325 albertel 4054: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4055: $currentstring = $token->[4];
4056: }
4057: return $currentstring;
1.98 albertel 4058: }
4059:
1.122 albertel 4060: sub end_wbr {
4061: my ($target,$token) = @_;
4062: my $currentstring = '';
1.325 albertel 4063: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4064: $currentstring = $token->[2];
4065: }
4066: return $currentstring;
1.98 albertel 4067: }
1.134 sakharuk 4068:
4069: #-- <hideweboutput> tag
4070: sub start_hideweboutput {
4071: my ($target,$token) = @_;
1.325 albertel 4072: if ($target eq 'web' || $target eq 'webgrade') {
1.134 sakharuk 4073: &Apache::lonxml::startredirection();
4074: }
4075: return '';
4076: }
4077:
4078: sub end_hideweboutput {
4079: my ($target,$token) = @_;
4080: my $currentstring = '';
1.325 albertel 4081: if ($target eq 'web' || $target eq 'webgrade') {
1.134 sakharuk 4082: $currentstring = &Apache::lonxml::endredirection();
4083: }
4084: return '';
4085: }
4086:
1.94 sakharuk 4087:
4088: sub image_replication {
4089: my $src = shift;
1.187 albertel 4090: if (not -e $src) { &Apache::lonnet::repcopy($src); }
4091: #replicates eps or ps
4092: my $epssrc = my $pssrc = $src;
4093: $epssrc =~ s/\.(gif|jpg|jpeg|png)$/.eps/i;
4094: $pssrc =~ s/\.(gif|jpg|jpeg|png)$/.ps/i;
4095: if (not -e $epssrc && not -e $pssrc) {
4096: my $result=&Apache::lonnet::repcopy($epssrc);
1.264 raeburn 4097: if ($result ne 'ok') { &Apache::lonnet::repcopy($pssrc); }
1.94 sakharuk 4098: }
4099: return '';
1.195 sakharuk 4100: }
1.275 foxr 4101: #
4102: # Get correct sizing parameter for an image given
4103: # it's initial ht. and wid. This allows sizing of
4104: # images that are generated on-the-fly (e.g. gnuplot)
4105: # as well as serving as a utility for image_size.
4106: #
4107: # Parameter:
4108: # height_param
4109: # width_param - Initial picture dimensions.
4110: # scaling - A scale factor.
4111: # parstack, - the current stack of tag attributes
4112: # from the xml parser
4113: # safeeval, - pointer to the safespace
4114: # depth, - from what level in the stack to look for attributes
4115: # (assumes -1 if unspecified)
4116: # cis - look for attrubutes case insensitively
4117: # (assumes false)
4118: #
4119: # Returns:
4120: # height, width - new dimensions.
4121: #
4122: sub resize_image {
4123: my ($height_param, $width_param, $scaling,
4124: $parstack, $safeeval, $depth, $cis) = @_;
4125:
4126: # First apply the scaling...
1.271 foxr 4127:
1.275 foxr 4128: $height_param = $height_param * $scaling;
4129: $width_param = $width_param * $scaling;
1.261 foxr 4130:
1.197 sakharuk 4131: #do we have any specified LaTeX size of the picture?
1.261 foxr 4132: my $toget='TeXwidth';
4133: if ($cis) {
4134: $toget=lc($toget);
4135: }
1.256 albertel 4136: my $TeXwidth = &Apache::lonxml::get_param($toget,$parstack,
4137: $safeeval,$depth,$cis);
4138: $toget='TeXheight'; if ($cis) { $toget=lc($toget); }
4139: my $TeXheight = &Apache::lonxml::get_param($toget,$parstack,
4140: $safeeval,$depth,$cis);
1.197 sakharuk 4141: #do we have any specified web size of the picture?
4142: my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval,
1.256 albertel 4143: $depth,1);
4144: if ($TeXwidth) {
1.252 matthew 4145: my $old_width_param=$width_param;
1.197 sakharuk 4146: if ($TeXwidth=~/(\d+)\s*\%/) {
1.267 albertel 4147: $width_param = $1*$env{'form.textwidth'}/100;
1.197 sakharuk 4148: } else {
4149: $width_param = $TeXwidth;
4150: }
1.266 albertel 4151: if ($TeXheight) {
4152: $height_param = $TeXheight;
4153: } elsif ($old_width_param) {
4154: $height_param=$TeXwidth/$old_width_param*$height_param;
4155: }
1.256 albertel 4156: } elsif ($TeXheight) {
1.248 foxr 4157: $height_param = $TeXheight;
1.266 albertel 4158: if ($height_param) {
4159: $width_param = $TeXheight/$height_param*$width_param;
4160: }
1.256 albertel 4161: } elsif ($width) {
1.252 matthew 4162: my $old_width_param=$width_param;
1.256 albertel 4163: $width_param = $width*$scaling;
1.266 albertel 4164: if ($old_width_param) {
4165: $height_param=$width_param/$old_width_param*$height_param;
4166: }
1.252 matthew 4167: }
1.267 albertel 4168: if ($width_param > $env{'form.textwidth'}) {
1.252 matthew 4169: my $old_width_param=$width_param;
1.267 albertel 4170: $width_param =0.95*$env{'form.textwidth'};
1.266 albertel 4171: if ($old_width_param) {
4172: $height_param=$width_param/$old_width_param*$height_param;
4173: }
1.197 sakharuk 4174: }
1.275 foxr 4175:
4176: return ($height_param, $width_param);
4177: }
4178:
4179: sub image_size {
4180: my ($src,$scaling,$parstack,$safeeval,$depth,$cis)=@_;
4181:
4182: #size of image from gif/jpg/jpeg/png
4183: my $ressrc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
4184: if (-e $ressrc) {
4185: $src = $ressrc;
4186: }
4187: my $image = Image::Magick->new;
4188: my $current_figure = $image->Read($src);
4189: my $width_param = $image->Get('width');
4190: my $height_param = $image->Get('height');
4191: &Apache::lonxml::debug("Image magick says: $src : Height = $height_param width = $width_param");
4192: undef($image);
4193:
4194: ($height_param, $width_param) = &resize_image($height_param, $width_param,
4195: $scaling, $parstack, $safeeval,
4196: $depth, $cis);
4197:
1.248 foxr 4198: return ($height_param, $width_param);
4199: }
4200:
4201: sub image_width {
4202: my ($height, $width) = &image_size(@_);
4203: return $width;
4204: }
4205: # Not yet 100% sure this is correct in all circumstances..
4206: # due to my uncertainty about mods to image_size.
4207: #
4208: sub image_height {
4209: my ($height, $width) = &image_size(@_);
4210: return $height;
1.197 sakharuk 4211: }
4212:
1.256 albertel 4213: sub get_eps_image {
4214: my ($src)=@_;
1.261 foxr 4215: my $orig_src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1], $src);
1.285 foxr 4216:
4217: # In order to prevent the substitution of the alt text, we need to
4218: # be sure the orig_src file is on system now so:
4219:
4220: if (! -e $orig_src) {
4221: &Apache::lonnet::repcopy($orig_src); # Failure is not completely fatal.
4222: }
1.275 foxr 4223: &Apache::lonxml::debug("get_eps_image: Original image: $orig_src");
1.282 foxr 4224: my ($spath, $sname, $sext) = fileparse($src, qr/\.(gif|png|jpg|jpeg)/i);
1.256 albertel 4225: $src=~s/\.(gif|png|jpg|jpeg)$/\.eps/i;
4226: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.275 foxr 4227: &Apache::lonxml::debug("Filelocation gives: $src");
1.256 albertel 4228: if (! -e $src) {
1.261 foxr 4229: &Apache::lonxml::debug("$src does not exist");
1.264 raeburn 4230: if (&Apache::lonnet::repcopy($src) ne 'ok' ) {
1.261 foxr 4231: &Apache::lonxml::debug("Repcopy of $src failed (1)");
1.256 albertel 4232: #if replication failed try to find ps file
4233: $src=~s/\.eps$/\.ps/;
1.261 foxr 4234: &Apache::lonxml::debug("Now looking for $src");
1.270 foxr 4235: #if no ps file try to replicate it.
4236: my $didrepcopy = &Apache::lonnet::repcopy($src);
4237: &Apache::lonxml::debug("repcopy of $src ... $didrepcopy");
4238: if ( (not -e $src) ||
4239: ($didrepcopy ne 'ok')) {
1.261 foxr 4240: &Apache::lonxml::debug("Failed to find or replicate $src");
4241:
1.256 albertel 4242: #if replication failed try to produce eps file dynamically
4243: $src=~s/\.ps$/\.eps/;
4244: my $temp_file;
1.267 albertel 4245: open(FILE,">>/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat");
1.256 albertel 4246: my $newsrc=$orig_src;
4247: $newsrc =~ s|(.*)/res/|/home/httpd/html/res/|;
1.275 foxr 4248: &Apache::lonxml::debug("queueing $newsrc for dynamic eps production.");
1.256 albertel 4249: print FILE "$newsrc\n";
1.261 foxr 4250: close FILE;
1.256 albertel 4251: $src=~s|/home/httpd/html/res|/home/httpd/prtspool|;
4252: $src=~s|/home/([^/]*)/public_html/|/home/httpd/prtspool/$1/|;
1.283 albertel 4253: if ($sext ne "") { # Put the ext. back in to uniquify.
4254: $src =~ s/\.eps$/$sext.eps/;
4255: }
1.256 albertel 4256: }
4257: }
4258: }
4259: my ($path,$file)=($src=~m|(.*)/([^/]*)$|);
1.261 foxr 4260: &Apache::lonxml::debug("get_eps_image returning: $path / $file<BR />");
1.256 albertel 4261: return ($path.'/',$file);
4262: }
4263:
1.195 sakharuk 4264: sub eps_generation {
4265: my ($src,$file,$width_param) = @_;
1.267 albertel 4266: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat";
1.195 sakharuk 4267: my $temp_file = Apache::File->new('>>'.$filename);
4268: print $temp_file "$src\n";
4269: my $newsrc = $src;
4270: $newsrc =~ s/(\.gif|\.jpg|\.jpeg)$/\.eps/i;
4271: $newsrc=~s/\/home\/httpd\/html\/res//;
4272: $newsrc=~s/\/home\/([^\/]*)\/public_html\//\/$1\//;
4273: $newsrc=~s/\/\.\//\//;
4274: $newsrc=~s/\/([^\/]+)\.(ps|eps)/\//;
1.213 sakharuk 4275: if ($newsrc=~/\/home\/httpd\/lonUsers\//) {
4276: $newsrc=~s/\/home\/httpd\/lonUsers//;
4277: $newsrc=~s/\/([^\/]+)\/(\w)\/(\w)\/(\w)\//\/$1\//;
4278: }
1.239 sakharuk 4279: if ($newsrc=~/\/userfiles\//) {
4280: return ' \graphicspath{{'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4281: } else {
4282: return ' \graphicspath{{/home/httpd/prtspool'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4283: }
1.197 sakharuk 4284: }
4285:
4286: sub file_path {
4287: my $src=shift;
4288: my ($file,$path);
4289: if ($src =~ m!(.*)/([^/]*)$!) {
4290: $file = $2;
4291: $path = $1.'/';
4292: }
4293: return $file,$path;
1.126 sakharuk 4294: }
1.294 foxr 4295: # Converts a measurement in to mm from any of
4296: # the other valid LaTeX units of measure.
4297: # If the units of measure are missing from the
4298: # parameter, it is assumed to be in and returned
4299: # with mm units of measure
1.126 sakharuk 4300: sub recalc {
4301: my $argument = shift;
4302: if (not $argument=~/(mm|cm|in|pc|pt)/) {return $argument.' mm';}
1.132 sakharuk 4303: $argument=~/\s*(\d+\.?\d*)\s*(mm|cm|in|pc|pt)/;
1.126 sakharuk 4304: my $value=$1;
4305: my $units=$2;
4306: if ($units eq 'cm') {
4307: $value*=10;
4308: } elsif ($units eq 'in') {
4309: $value*=25.4;
4310: } elsif ($units eq 'pc') {
4311: $value*=(25.4*12/72.27);
4312: } elsif ($units eq 'pt') {
4313: $value*=(25.4/72.27);
4314: }
4315: return $value.' mm';
1.94 sakharuk 4316: }
1.184 sakharuk 4317:
4318: sub LATEX_length {
4319: my $garbage=shift;
1.206 sakharuk 4320: $garbage=~s/^\s+$//;
4321: $garbage=~s/^\s+(\S.*)/$1/;#space before
4322: $garbage=~s/(.*\S)\s+$/$1/;#space after
4323: $garbage=~s/(\s)+/$1/;#only one space
4324: $garbage=~s/(\\begin{([^\}]+)}|\\end{([^\}]+)})//g;#remove LaTeX \begin{...} and \end{...}
4325: $garbage=~s/(\$\_\{|\$\_|\$\^{|\$\^|\}\$)//g;#remove $_{,$_,$^{,$^,}$
4326: $garbage=~s/([^\\])\$/$1/g;#$
4327: $garbage=~s/(\\ensuremath\{\_\{|\\ensuremath\{\_|\\ensuremath\{\^{|\\ensuremath\{\^|\})//g;#remove \ensuremath{...}
4328: $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 4329: $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;
4330: $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;
4331: $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 4332: $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;
4333: $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;
4334: $garbage=~s/(\\hat{([^}]+)}|\\check{([^}]+)}|\\dot{([^}]+)}|\\breve{([^}]+)}|\\acute{([^}]+)}|\\ddot{([^}]+)}|\\grave{([^}]+)}|\\tilde{([^}]+)}|\\mathring{([^}]+)}|\\bar{([^}]+)}|\\vec{([^}]+)})/$1/g;
4335: #remove some other LaTeX command
4336: $garbage=~s|\\(\w+)\\|\\|g;
4337: $garbage=~s|\\(\w+)(\s*)|$2|g;
4338: $garbage=~s|\+|11|g;
1.184 sakharuk 4339: my $value=length($garbage);
4340: return $value;
4341: }
4342:
4343:
1.287 foxr 4344: # is_inside_of $tagstack $tag
4345: # This sub returns true if the current state of Xml processing
4346: # is inside of the tag.
4347: # Parameters:
4348: # tagstack - The tagstack from the parser.
4349: # tag - The tag (without the <>'s.).
4350: # Sample usage:
4351: # if (is_inside_of($tagstack "table")) {
4352: # # I'm in a table....
4353: # }
4354: sub is_inside_of {
4355: my ($tagstack, $tag) = @_;
4356: my @stack = @$tagstack;
4357: for (my $i = ($#stack - 1); $i >= 0; $i--) {
4358: if ($stack[$i] eq $tag) {
4359: return 1;
4360: }
4361: }
4362: return 0;
4363: }
1.184 sakharuk 4364:
1.94 sakharuk 4365:
1.1 sakharuk 4366: 1;
4367: __END__
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