Annotation of loncom/xml/londefdef.pm, revision 1.330
1.1 sakharuk 1: # The LearningOnline Network with CAPA
2: # Tags Default Definition Module
3: #
1.330 ! albertel 4: # $Id: londefdef.pm,v 1.329 2006/05/17 22:08:08 albertel Exp $
1.41 sakharuk 5: #
1.34 www 6: #
7: # Copyright Michigan State University Board of Trustees
8: #
9: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
10: #
11: # LON-CAPA is free software; you can redistribute it and/or modify
12: # it under the terms of the GNU General Public License as published by
13: # the Free Software Foundation; either version 2 of the License, or
14: # (at your option) any later version.
15: #
16: # LON-CAPA is distributed in the hope that it will be useful,
17: # but WITHOUT ANY WARRANTY; without even the implied warranty of
18: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19: # GNU General Public License for more details.
20: #
21: # You should have received a copy of the GNU General Public License
22: # along with LON-CAPA; if not, write to the Free Software
23: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24: #
25: # /home/httpd/html/adm/gpl.txt
26: #
27: # http://www.lon-capa.org/
1.156 sakharuk 28: ## Copyright for TtHfunc and TtMfunc by Ian Hutchinson.
1.34 www 29: # TtHfunc and TtMfunc (the "Code") may be compiled and linked into
30: # binary executable programs or libraries distributed by the
31: # Michigan State University (the "Licensee"), but any binaries so
32: # distributed are hereby licensed only for use in the context
33: # of a program or computational system for which the Licensee is the
34: # primary author or distributor, and which performs substantial
35: # additional tasks beyond the translation of (La)TeX into HTML.
36: # The C source of the Code may not be distributed by the Licensee
37: # to any other parties under any circumstances.
38: #
1.1 sakharuk 39:
1.2 albertel 40: package Apache::londefdef;
1.1 sakharuk 41:
1.267 albertel 42: use Apache::lonnet;
1.1 sakharuk 43: use strict;
1.124 sakharuk 44: use Apache::lonxml;
1.57 sakharuk 45: use Apache::File();
1.70 sakharuk 46: use Image::Magick;
1.118 www 47: use Apache::lonmenu();
48: use Apache::lonmeta();
1.187 albertel 49: use Apache::Constants qw(:common);
1.282 foxr 50: use File::Basename;
1.302 foxr 51: # use Data::Dumper;
1.160 sakharuk 52:
1.38 harris41 53: BEGIN {
1.15 sakharuk 54:
1.135 sakharuk 55: &Apache::lonxml::register('Apache::londefdef',('a','abbr','acronym','accessrule','address','allow','applet','area','b','base','basefont','bgo','bgsound','big','blink','blockquote','blankspace','body','br','button','caption','center','cite','code','col','colgroup','dd','del','dfn','dir','div','dl','dt','em','embed','externallink','fieldset','font','form','frame','frameset','h1','h2','h3','h4','h5','h6','head','hr','html','i','iframe','img','input','ins','insert','isindex','kbd','keygen','label','layer','legend','li','link','m','map','marquee','menu','meta','multicol','nobr','noembed','noframes','nolayer','noscript','object','ol','optgroup','option','output','p','param','pre','q','s','samp','select','server','small','spacer','span','strike','strong','sub','sup','table','tbody','td','textarea','tfoot','th','thead','title','tr','tt','tthoption','u','ul','var','wbr','hideweboutput'));
1.15 sakharuk 56:
1.188 albertel 57: }
58:
1.294 foxr 59: #
60: # Dumps all elements of the table structure.
61: # Need this 'cause evidently when given an array, Data::Dumper only seems
62: # to dump element 0.
63: #
1.302 foxr 64: #sub debug_dump_table {
65: # my $lastrow = $#Apache::londefdef::table;
66: # &Apache::lonnet::logthis("Dumping table: Last row index: $lastrow");
67: # my $row;
68: # for ($row =0; $row <= $lastrow; $row++ ) {
69: # my $text = Dumper($Apache::londefdef::table[$row]);
70: # &Apache::lonnet::logthis("table [ $row ]".$text);
71: # }
72: #}
1.188 albertel 73: sub initialize_londefdef {
74: $Apache::londefdef::TD_redirection=0;
75: @Apache::londefdef::table = ();
76: $Apache::londefdef::select=0;
1.243 albertel 77: undef(@Apache::londefdef::description);
78: @Apache::londefdef::DD=(0);
79: @Apache::londefdef::DT=(0);
1.244 albertel 80: @Apache::londefdef::seenDT=(0);
1.238 albertel 81: $Apache::londefdef::list_index=0;
1.327 albertel 82: undef($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') {
1.307 foxr 186: $currentstring .= '\documentclass[letterpaper,twoside]{article}';
1.267 albertel 187: if (($env{'form.latex_type'}=~'batchmode') ||
188: (!$env{'request.role.adv'})) {$currentstring .='\batchmode';}
1.217 sakharuk 189: $currentstring .= '\newcommand{\keephidden}[1]{}'.
190: '\renewcommand{\deg}{$^{\circ}$}'.
1.306 foxr 191: '\usepackage{multirow}'.
1.217 sakharuk 192: '\usepackage{longtable}'.
193: '\usepackage{textcomp}'.
194: '\usepackage{makeidx}'.
195: '\usepackage[dvips]{graphicx}'.
1.286 foxr 196: '\usepackage{wrapfig}'.
1.248 foxr 197: '\usepackage{picins}'.
1.217 sakharuk 198: '\usepackage{epsfig}'.
199: '\usepackage{calc}'.
200: '\usepackage{amsmath}'.
201: '\usepackage{amssymb}'.
202: '\usepackage{amsfonts}'.
203: '\usepackage{amsthm}'.
204: '\usepackage{amscd}'.
205: '\newenvironment{choicelist}{\begin{list}{}{\setlength{\rightmargin}{0in}\setlength{\leftmargin}{0.13in}\setlength{\topsep}{0.05in}\setlength{\itemsep}{0.022in}\setlength{\parsep}{0in}\setlength{\belowdisplayskip}{0.04in}\setlength{\abovedisplayskip}{0.05in}\setlength{\abovedisplayshortskip}{-0.04in}\setlength{\belowdisplayshortskip}{0.04in}}}{\end{list}}'.
206: '\renewenvironment{theindex}{\begin{list}{}{{\vskip 1mm \noindent \large\textbf{Index}} \newline \setlength{\rightmargin}{0in}\setlength{\leftmargin}{0.13in}\setlength{\topsep}{0.01in}\setlength{\itemsep}{0.1in}\setlength{\parsep}{-0.02in}\setlength{\belowdisplayskip}{0.01in}\setlength{\abovedisplayskip}{0.01in}\setlength{\abovedisplayshortskip}{-0.04in}\setlength{\belowdisplayshortskip}{0.01in}}}{\end{list}}';
1.100 albertel 207: }
208: return $currentstring;
209: }
1.122 albertel 210:
211: sub end_html {
1.232 sakharuk 212: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 213: my $currentstring = '';
1.324 albertel 214: if ($target eq 'web' || $target eq 'webgrade') {
1.327 albertel 215: # end_body takes care of the </html>
1.122 albertel 216: }
217: return $currentstring;
218: }
219:
1.181 sakharuk 220: #-- <head> tag (end tag optional)
1.122 albertel 221: sub start_head {
222: my ($target,$token) = @_;
223: my $currentstring = '';
1.324 albertel 224: if ($target eq 'web' || $target eq 'webgrade') {
1.327 albertel 225: &Apache::lonxml::startredirection();
1.122 albertel 226: }
227: return $currentstring;
228: }
229:
230: sub end_head {
231: my ($target,$token) = @_;
232: my $currentstring = '';
1.324 albertel 233: if (($target eq 'web' && $env{'request.state'} eq 'published') ||
234: ($target eq 'webgrade' && $env{'request.state'} eq 'published')) {
1.327 albertel 235: # in case there is a </head> but no <head>
236: if ($Apache::lonxml::redirection) {
237: $Apache::londefdef::head = &Apache::lonxml::endredirection();
238: }
1.122 albertel 239: }
240: return $currentstring;
241: }
242:
1.181 sakharuk 243: #-- <map> tag (end tag required)
1.122 albertel 244: sub start_map {
245: my ($target,$token) = @_;
246: my $currentstring = '';
1.325 albertel 247: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 248: $currentstring = $token->[4];
249: }
250: return $currentstring;
251: }
252:
253: sub end_map {
254: my ($target,$token) = @_;
255: my $currentstring = '';
1.325 albertel 256: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 257: $currentstring = $token->[2];
258: }
259: return $currentstring;
260: }
261:
1.181 sakharuk 262: #-- <select> tag (end tag required)
1.122 albertel 263: sub start_select {
264: my ($target,$token) = @_;
265: my $currentstring = '';
1.325 albertel 266: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 267: $currentstring = $token->[4];
1.181 sakharuk 268: } elsif ($target eq 'tex') {
269: $Apache::londefdef::select=0;
270: }
1.122 albertel 271: return $currentstring;
272: }
273:
274: sub end_select {
275: my ($target,$token) = @_;
276: my $currentstring = '';
1.325 albertel 277: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 278: $currentstring = $token->[2];
279: }
280: return $currentstring;
281: }
282:
1.181 sakharuk 283: #-- <option> tag (end tag optional)
1.122 albertel 284: sub start_option {
1.181 sakharuk 285: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 286: my $currentstring = '';
1.325 albertel 287: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 288: $currentstring = $token->[4];
1.181 sakharuk 289: } elsif ($target eq 'tex') {
290: $Apache::londefdef::select++;
291: if ($Apache::londefdef::select == 1) {
292: $currentstring='\noindent\fbox{'.&Apache::lonxml::get_param('value',$parstack,$safeeval).'}\keephidden{';
293: } else {
294: $currentstring='\keephidden{';
295: }
296: }
1.122 albertel 297: return $currentstring;
298: }
299:
300: sub end_option {
301: my ($target,$token) = @_;
302: my $currentstring = '';
1.325 albertel 303: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 304: $currentstring = $token->[2];
1.181 sakharuk 305: } elsif ($target eq 'tex') {
306: $currentstring='}';
307: }
1.122 albertel 308: return $currentstring;
309: }
310:
1.181 sakharuk 311: #-- <input> tag (end tag forbidden)
1.122 albertel 312: sub start_input {
313: my ($target,$token) = @_;
314: my $currentstring = '';
1.325 albertel 315: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 316: $currentstring = $token->[4];
317: }
318: return $currentstring;
319: }
320:
321: sub end_input {
322: my ($target,$token) = @_;
323: my $currentstring = '';
1.325 albertel 324: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 325: $currentstring = $token->[2];
326: }
327: return $currentstring;
328: }
329:
1.181 sakharuk 330: #-- <textarea> tag (end tag required)
1.122 albertel 331: sub start_textarea {
332: my ($target,$token) = @_;
333: my $currentstring = '';
1.325 albertel 334: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 335: $currentstring = $token->[4];
336: }
337: return $currentstring;
338: }
339:
340: sub end_textarea {
341: my ($target,$token) = @_;
342: my $currentstring = '';
1.325 albertel 343: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 344: $currentstring = $token->[2];
345: }
346: return $currentstring;
347: }
348:
1.181 sakharuk 349: #-- <form> tag (end tag required)
1.122 albertel 350: sub start_form {
351: my ($target,$token) = @_;
352: my $currentstring = '';
1.325 albertel 353: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 354: $currentstring = $token->[4];
355: }
356: return $currentstring;
357: }
358:
359: sub end_form {
360: my ($target,$token) = @_;
361: my $currentstring = '';
1.325 albertel 362: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 363: $currentstring = $token->[2];
364: }
365: return $currentstring;
366: }
367:
1.181 sakharuk 368: #-- <title> tag (end tag required)
1.122 albertel 369: sub start_title {
1.327 albertel 370: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 371: my $currentstring = '';
1.324 albertel 372: if ($target eq 'web' || $target eq 'webgrade') {
1.327 albertel 373: $Apache::londefdef::title =
374: &Apache::lonxml::get_all_text('/title',$parser,$style);
1.122 albertel 375: } elsif ($target eq 'tex') {
1.166 sakharuk 376: $currentstring .= '\keephidden{Title of the document: '
1.122 albertel 377: }
378: if ($target eq 'meta') {
379: $currentstring='<title>';
1.185 albertel 380: &start_output($target);
1.122 albertel 381: }
382: return $currentstring;
383: }
384:
385: sub end_title {
386: my ($target,$token) = @_;
387: my $currentstring = '';
1.324 albertel 388: if ($target eq 'web' || $target eq 'webgrade') {
1.327 albertel 389: # start_title takes care of swallowing the title
1.122 albertel 390: } elsif ($target eq 'tex') {
391: $currentstring .= '}';
392: }
393: if ($target eq 'meta') {
1.185 albertel 394: &end_output($target);
1.122 albertel 395: $currentstring='</title>';
396: }
397: return $currentstring;
398: }
399:
1.181 sakharuk 400: #-- <meta> tag (end tag forbidden)
1.122 albertel 401: sub start_meta {
1.299 albertel 402: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 403: my $currentstring = '';
1.325 albertel 404: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 405: my $args='';
406: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
407: if ($args eq '') {
1.299 albertel 408: &Apache::lonxml::get_all_text("/meta",$parser,$style);
1.122 albertel 409: } else {
410: $currentstring = $token->[4];
1.1 sakharuk 411: }
1.135 sakharuk 412: } elsif ($target eq 'meta') {
1.122 albertel 413: unless (&Apache::lonxml::get_param
414: ('http-equiv',$parstack,$safeeval,undef,1)) {
415: my $name=$token->[2]->{'name'};
416: $name=~tr/A-Z/a-z/;
417: $name=~s/\s/\_/gs;
418: $name=~s/\W//gs;
419: if ($name) {
1.154 www 420: $currentstring='<'.$name;
421: my $display=&Apache::lonxml::get_param
422: ('display',$parstack,$safeeval,undef,1);
423: if ($display) {
424: $display=~s/\"/\'/g;
425: $currentstring.=' display="'.$display.'"';
426: }
427: $currentstring.='>'.
1.122 albertel 428: &Apache::lonxml::get_param
429: ('content',$parstack,$safeeval,undef,1).
1.135 sakharuk 430: '</'.$name.'>';
1.1 sakharuk 431: }
1.154 www 432: my $display=&Apache::lonxml::get_param
433: ('display',$parstack,$safeeval,undef,1);
434: if ($display) {
1.204 albertel 435: $display=&HTML::Entities::encode($display,'<>&"');
1.154 www 436: $currentstring.='<'.$name.'.display>'.$display.
437: '</'.$name.'.display>';
438: }
1.1 sakharuk 439: }
1.135 sakharuk 440: } elsif ($target eq 'tex') {
1.151 sakharuk 441: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
442: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
443: if ((not defined $content) && (not defined $name)) {
444: &Apache::lonxml::startredirection();
445: }
1.122 albertel 446: }
447: return $currentstring;
448: }
449:
450: sub end_meta {
1.165 albertel 451: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 452: my $currentstring = '';
1.325 albertel 453: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 454: my $args='';
455: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
456: if ($args ne '') {
1.121 www 457: $currentstring = $token->[4];
1.122 albertel 458: }
1.135 sakharuk 459: } elsif ($target eq 'tex') {
1.165 albertel 460: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
461: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
1.164 albertel 462: if ((not defined $content) && (not defined $name)) {
1.169 albertel 463: &Apache::lonxml::endredirection();
1.164 albertel 464: }
1.135 sakharuk 465: }
1.122 albertel 466: return $currentstring;
467: }
468:
1.121 www 469: # accessrule
1.122 albertel 470: sub start_accessrule {
1.299 albertel 471: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 472: my $currentstring = '';
473: my $eff=&Apache::lonxml::get_param
474: ('effect',$parstack,$safeeval,undef,1);
475: my $realm=&Apache::lonxml::get_param
476: ('realm',$parstack,$safeeval,undef,1);
1.123 www 477: my $role=&Apache::lonxml::get_param
478: ('role',$parstack,$safeeval,undef,1);
479: $realm=~s/\s+//g;
480: $realm=~s/\//\_/g;
481: $realm=~s/^\_//;
482: $realm=~s/\W/\;/g;
483: $role=~s/\s+//g;
484: $role=~s/\//\_/g;
485: $role=~s/\W/\;/g;
1.122 albertel 486: if ($target eq 'web') {
487: my $args='';
488: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
489: if ($args eq '') {
1.299 albertel 490: &Apache::lonxml::get_all_text("/accessrule",$parser,$style);
1.122 albertel 491: } else {
492: $currentstring = $token->[4];
493: }
494: }
495: if ($target eq 'meta') {
1.123 www 496: $currentstring='<rule>'.$eff.':'.$realm.':'.$role.'</rule>';
1.122 albertel 497: }
498: return $currentstring;
499: }
500:
501: sub end_accessrule {
502: my ($target,$token,$tagstack,$parstack,$parser) = @_;
503: my $currentstring = '';
504: if ($target eq 'web') {
505: my $args='';
506: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
507: if ($args ne '') {
508: $currentstring = $token->[4];
509: }
510: }
511: return $currentstring;
512: }
513:
1.181 sakharuk 514: #-- <body> tag (end tag required)
1.122 albertel 515: sub start_body {
516: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
517: my $currentstring = '';
1.244 albertel 518:
1.324 albertel 519: if ($target eq 'web' || $target eq 'webgrade') {
1.170 albertel 520: if ($Apache::lonhomework::parsing_a_problem) {
521: &Apache::lonxml::warning("<body> tag found inside of <problem> tag this can cause problems.");
522: return '';
523: }
1.122 albertel 524:
1.327 albertel 525: if (&is_inside_of($tagstack, "head")) {
526: &end_head(@_);
1.122 albertel 527: }
1.327 albertel 528: $currentstring =
529: &Apache::loncommon::start_page($Apache::londefdef::title,
530: $Apache::londefdef::head,
531: {'add_entries' => $token->[2],
532: 'no_title' => 1,
533: 'force_register' => 1});
534:
1.267 albertel 535: if ($env{'request.state'} ne 'published') {
1.330 ! albertel 536: $currentstring.=&Apache::lonmenu::constspaceform();
1.122 albertel 537: $currentstring.=(<<EDITBUTTON);
1.278 www 538: <form method="post">
539: <input type="submit" name="editmode" accesskey="e" value="Edit" />
540: </form>
1.327 albertel 541: <br />
1.40 albertel 542: EDITBUTTON
1.1 sakharuk 543: }
1.201 albertel 544: $currentstring.=&Apache::lonxml::message_location();
1.122 albertel 545: } elsif ($target eq 'tex') {
546: $currentstring = '\begin{document}';
547: }
548: return $currentstring;
549: }
550:
551: sub end_body {
1.259 albertel 552: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 553: my $currentstring = &end_p(); # Close off unclosed <p>
1.324 albertel 554: if ($target eq 'web' || $target eq 'webgrade') {
1.327 albertel 555: $currentstring .= &Apache::loncommon::end_page({'discussion' => 1});
1.122 albertel 556: } elsif ($target eq 'tex') {
1.277 foxr 557: $currentstring .= '\strut\newline\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\newline\noindent \end{document}';
1.122 albertel 558: }
559: return $currentstring;
560: }
561:
1.309 albertel 562: # \begin{center} causes a new paragprah spacing that looks odd inside
563: # of a table cell
564: sub center_correction { return '\vspace*{-6 mm}'; }
1.181 sakharuk 565: #-- <center> tag (end tag required)
1.122 albertel 566: sub start_center {
1.309 albertel 567: my ($target,$token,$tagstack) = @_;
1.279 foxr 568: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 569: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 570: $currentstring .= $token->[4];
1.122 albertel 571: } elsif ($target eq 'tex') {
1.309 albertel 572: if (&is_inside_of($tagstack, "table")) {
573: $currentstring .= ¢er_correction();
574: }
1.277 foxr 575: $currentstring .= '\begin{center}';
1.144 sakharuk 576: }
1.122 albertel 577: return $currentstring;
578: }
579:
580: sub end_center {
1.309 albertel 581: my ($target,$token,$tagstack) = @_;
1.122 albertel 582: my $currentstring = '';
1.325 albertel 583: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 584: $currentstring = $token->[2];
585: } elsif ($target eq 'tex') {
586: $currentstring = '\end{center}';
1.144 sakharuk 587: }
1.122 albertel 588: return $currentstring;
589: }
590:
1.181 sakharuk 591: #-- <b> tag (end tag required)
1.279 foxr 592: # NOTE: In TeX mode disables internal <p>
1.122 albertel 593: sub start_b {
594: my ($target,$token) = @_;
595: my $currentstring = '';
1.325 albertel 596: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 597: $currentstring = $token->[4];
598: } elsif ($target eq 'tex') {
1.279 foxr 599: &disable_para();
600: $currentstring .= '\textbf{';
1.122 albertel 601: }
602: return $currentstring;
603: }
604:
605: sub end_b {
606: my ($target,$token) = @_;
607: my $currentstring = '';
1.325 albertel 608: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 609: $currentstring = $token->[2];
610: } elsif ($target eq 'tex') {
1.279 foxr 611: &enable_para();
612: $currentstring = '}';
1.122 albertel 613: }
614: return $currentstring;
615: }
1.35 sakharuk 616:
1.181 sakharuk 617: #-- <strong> tag (end tag required)
1.279 foxr 618: # NOTE: in TeX mode disables internal <p>
1.122 albertel 619: sub start_strong {
620: my ($target,$token) = @_;
621: my $currentstring = '';
1.325 albertel 622: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 623: $currentstring = $token->[4];
624: } elsif ($target eq 'tex') {
1.279 foxr 625: &disable_para();
1.122 albertel 626: $currentstring = '\textbf{';
627: }
628: return $currentstring;
629: }
630:
631: sub end_strong {
632: my ($target,$token) = @_;
633: my $currentstring = '';
1.325 albertel 634: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 635: $currentstring = $token->[2];
636: } elsif ($target eq 'tex') {
1.279 foxr 637: &enable_para();
1.122 albertel 638: $currentstring = '}';
1.144 sakharuk 639: }
1.122 albertel 640: return $currentstring;
641: }
642:
1.181 sakharuk 643: #-- <h1> tag (end tag required)
1.122 albertel 644: sub start_h1 {
1.125 sakharuk 645: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 646: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 647: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 648: $currentstring .= $token->[4];
649: } elsif ($target eq 'tex') {
1.125 sakharuk 650: my $pre;
1.199 albertel 651: my $align=lc(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1));
1.212 sakharuk 652: if ($align eq 'center') {
1.125 sakharuk 653: $pre='\begin{center}';
654: } elsif ($align eq 'left') {
655: $pre='\rlap{';
656: } elsif ($align eq 'right') {
657: $pre=' \hfill \llap{';
658: }
659: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
660: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 661: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 662: } elsif ($target eq 'meta') {
1.277 foxr 663: $currentstring.='<subject>';
1.185 albertel 664: &start_output($target);
1.122 albertel 665: }
666: return $currentstring;
667: }
668:
669: sub end_h1 {
1.125 sakharuk 670: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 671: my $currentstring = '';
1.325 albertel 672: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 673: $currentstring .= $token->[2];
674: } elsif ($target eq 'tex') {
1.212 sakharuk 675: my $post='\vskip 0 mm ';
1.125 sakharuk 676: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 677: if ($align eq 'center') {
1.125 sakharuk 678: $post='\end{center}';
679: } elsif ($align eq 'left') {
680: $post='} \hfill'.'\vskip 0 mm ';
681: } elsif ($align eq 'right') {
682: $post='}'.'\vskip 0 mm ';
683: }
684: $currentstring .= '}}'.$post;
1.122 albertel 685: } elsif ($target eq 'meta') {
1.185 albertel 686: &end_output($target);
1.122 albertel 687: $currentstring='</subject>';
688: }
689: return $currentstring;
690: }
691:
1.35 sakharuk 692: #-- <h2> tag
1.122 albertel 693: sub start_h2 {
1.125 sakharuk 694: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 695: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 696: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 697: $currentstring .= $token->[4];
698: } elsif ($target eq 'tex') {
1.125 sakharuk 699: my $pre;
700: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 701: if ($align eq 'center') {
1.125 sakharuk 702: $pre='\begin{center}';
703: } elsif ($align eq 'left') {
704: $pre='\rlap{';
705: } elsif ($align eq 'right') {
706: $pre=' \hfill \llap{';
707: }
708: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
709: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 710: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 711: }
712: return $currentstring;
713: }
714:
715: sub end_h2 {
1.125 sakharuk 716: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 717: my $currentstring = '';
1.325 albertel 718: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 719: $currentstring .= $token->[2];
720: } elsif ($target eq 'tex') {
1.212 sakharuk 721: my $post='\vskip 0 mm ';
1.125 sakharuk 722: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 723: if ($align eq 'center') {
1.125 sakharuk 724: $post='\end{center}';
725: } elsif ($align eq 'left') {
726: $post='} \hfill'.'\vskip 0 mm ';
727: } elsif ($align eq 'right') {
728: $post='}'.'\vskip 0 mm ';
729: }
730: $currentstring .= '}}'.$post;
1.122 albertel 731: }
732: return $currentstring;
733: }
734:
1.35 sakharuk 735: #-- <h3> tag
1.122 albertel 736: sub start_h3 {
1.125 sakharuk 737: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 738: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 739: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 740: $currentstring .= $token->[4];
741: } elsif ($target eq 'tex') {
1.125 sakharuk 742: my $pre;
743: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 744: if ($align eq 'center') {
1.125 sakharuk 745: $pre='\begin{center}';
746: } elsif ($align eq 'left') {
747: $pre='\rlap{';
748: } elsif ($align eq 'right') {
749: $pre=' \hfill \llap{';
750: }
751: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
752: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 753: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 754: }
755: return $currentstring;
756: }
757:
758: sub end_h3 {
1.125 sakharuk 759: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 760: my $currentstring = '';
1.325 albertel 761: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 762: $currentstring .= $token->[2];
763: } elsif ($target eq 'tex') {
1.212 sakharuk 764: my $post='\vskip 0 mm ';
1.125 sakharuk 765: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 766: if ($align eq 'center') {
1.125 sakharuk 767: $post='\end{center}';
768: } elsif ($align eq 'left') {
769: $post='} \hfill'.'\vskip 0 mm ';
770: } elsif ($align eq 'right') {
771: $post='}'.'\vskip 0 mm ';
772: }
773: $currentstring .= '}}'.$post;
1.122 albertel 774: }
775: return $currentstring;
776: }
777:
1.35 sakharuk 778: #-- <h4> tag
1.122 albertel 779: sub start_h4 {
1.125 sakharuk 780: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 781: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 782: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 783: $currentstring .= $token->[4];
784: } elsif ($target eq 'tex') {
1.125 sakharuk 785: my $pre;
786: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 787: if ($align eq 'center') {
1.125 sakharuk 788: $pre='\begin{center}';
789: } elsif ($align eq 'left') {
790: $pre='\rlap{';
791: } elsif ($align eq 'right') {
792: $pre=' \hfill \llap{';
793: }
794: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
795: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 796: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 797: }
798: return $currentstring;
799: }
800:
801: sub end_h4 {
1.125 sakharuk 802: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 803: my $currentstring = '';
1.325 albertel 804: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 805: $currentstring .= $token->[2];
806: } elsif ($target eq 'tex') {
1.212 sakharuk 807: my $post='\vskip 0 mm ';
1.125 sakharuk 808: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 809: if ($align eq 'center') {
1.125 sakharuk 810: $post='\end{center}';
811: } elsif ($align eq 'left') {
812: $post='} \hfill'.'\vskip 0 mm ';
813: } elsif ($align eq 'right') {
814: $post='}'.'\vskip 0 mm ';
815: }
816: $currentstring .= '}}'.$post;
1.122 albertel 817: }
818: return $currentstring;
819: }
820:
1.35 sakharuk 821: #-- <h5> tag
1.122 albertel 822: sub start_h5 {
1.125 sakharuk 823: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 824: my $currentstring = &end_p(); # Close off any prior paras.
1.325 albertel 825: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 826: $currentstring .= $token->[4];
827: } elsif ($target eq 'tex') {
1.125 sakharuk 828: my $pre;
829: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 830: if ($align eq 'center') {
1.125 sakharuk 831: $pre='\begin{center}';
832: } elsif ($align eq 'left') {
833: $pre='\rlap{';
834: } elsif ($align eq 'right') {
835: $pre=' \hfill \llap{';
836: }
837: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
838: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 839: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 840: }
841: return $currentstring;
842: }
843:
844: sub end_h5 {
1.125 sakharuk 845: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 846: my $currentstring = '';
1.325 albertel 847: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 848: $currentstring .= $token->[2];
849: } elsif ($target eq 'tex') {
1.212 sakharuk 850: my $post='\vskip 0 mm ';
1.125 sakharuk 851: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 852: if ($align eq 'center') {
1.125 sakharuk 853: $post='\end{center}';
854: } elsif ($align eq 'left') {
855: $post='} \hfill'.'\vskip 0 mm ';
856: } elsif ($align eq 'right') {
857: $post='}'.'\vskip 0 mm ';
858: }
859: $currentstring .= '}}'.$post;
1.122 albertel 860: }
861: return $currentstring;
862: }
863:
1.35 sakharuk 864: #-- <h6> tag
1.122 albertel 865: sub start_h6 {
1.125 sakharuk 866: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 867: my $currentstring = &end_p(); # Close off any prior paras.
1.325 albertel 868: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 869: $currentstring .= $token->[4];
870: } elsif ($target eq 'tex') {
1.125 sakharuk 871: my $pre;
872: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 873: if ($align eq 'center') {
1.125 sakharuk 874: $pre='\begin{center}';
875: } elsif ($align eq 'left') {
876: $pre='\rlap{';
877: } elsif ($align eq 'right') {
878: $pre=' \hfill \llap{';
879: }
880: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
881: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 882: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 883: }
884: return $currentstring;
885: }
886:
887: sub end_h6 {
1.125 sakharuk 888: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 889: my $currentstring = '';
1.325 albertel 890: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 891: $currentstring .= $token->[2];
892: } elsif ($target eq 'tex') {
1.212 sakharuk 893: my $post='\vskip 0 mm ';
1.125 sakharuk 894: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 895: if ($align eq 'center') {
1.125 sakharuk 896: $post='\end{center}';
897: } elsif ($align eq 'left') {
898: $post='} \hfill'.'\vskip 0 mm ';
899: } elsif ($align eq 'right') {
900: $post='}'.'\vskip 0 mm ';
901: }
902: $currentstring .= '}}'.$post;
1.122 albertel 903: }
904: return $currentstring;
905: }
906:
1.181 sakharuk 907: #--- <cite> tag (end tag required)
1.122 albertel 908: sub start_cite {
909: my ($target,$token) = @_;
910: my $currentstring = '';
1.325 albertel 911: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 912: $currentstring .= $token->[4];
913: } elsif ($target eq 'tex') {
1.179 sakharuk 914: $currentstring .= '\textit{';
1.144 sakharuk 915: }
1.122 albertel 916: return $currentstring;
917: }
918:
919: sub end_cite {
920: my ($target,$token) = @_;
921: my $currentstring = '';
1.325 albertel 922: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 923: $currentstring .= $token->[2];
924: } elsif ($target eq 'tex') {
1.179 sakharuk 925: $currentstring .= '}';
1.144 sakharuk 926: }
1.122 albertel 927: return $currentstring;
928: }
929:
1.181 sakharuk 930: #-- <i> tag (end tag required)
1.122 albertel 931: sub start_i {
932: my ($target,$token) = @_;
933: my $currentstring = '';
1.325 albertel 934: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 935: $currentstring .= $token->[4];
936: } elsif ($target eq 'tex') {
937: $currentstring .= '\textit{';
1.144 sakharuk 938: }
1.122 albertel 939: return $currentstring;
940: }
941:
942: sub end_i {
943: my ($target,$token) = @_;
944: my $currentstring = '';
1.325 albertel 945: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 946: $currentstring .= $token->[2];
947: } elsif ($target eq 'tex') {
948: $currentstring .= '}';
949: }
950: return $currentstring;
951: }
952:
1.181 sakharuk 953: #-- <address> tag (end tag required)
1.122 albertel 954: sub start_address {
955: my ($target,$token) = @_;
956: my $currentstring = '';
1.325 albertel 957: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 958: $currentstring .= $token->[4];
959: } elsif ($target eq 'tex') {
1.179 sakharuk 960: $currentstring .= '\textit{';
1.144 sakharuk 961: }
1.122 albertel 962: return $currentstring;
963: }
964:
965: sub end_address {
966: my ($target,$token) = @_;
967: my $currentstring = '';
1.325 albertel 968: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 969: $currentstring .= $token->[2];
970: } elsif ($target eq 'tex') {
1.179 sakharuk 971: $currentstring .= '}';
1.122 albertel 972: }
973: return $currentstring;
974: }
975:
1.181 sakharuk 976: #-- <dfn> tag (end tag required)
1.122 albertel 977: sub start_dfn {
978: my ($target,$token) = @_;
979: my $currentstring = '';
1.325 albertel 980: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 981: $currentstring .= $token->[4];
982: } elsif ($target eq 'tex') {
1.179 sakharuk 983: $currentstring .= '\textit{';
1.122 albertel 984: }
985: return $currentstring;
986: }
987:
988: sub end_dfn {
989: my ($target,$token) = @_;
990: my $currentstring = '';
1.325 albertel 991: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 992: $currentstring .= $token->[2];
993: } elsif ($target eq 'tex') {
1.179 sakharuk 994: $currentstring .= '}';
1.144 sakharuk 995: }
1.122 albertel 996: return $currentstring;
997: }
998:
1.181 sakharuk 999: #-- <tt> tag (end tag required)
1.122 albertel 1000: sub start_tt {
1001: my ($target,$token) = @_;
1002: my $currentstring = '';
1.325 albertel 1003: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1004: $currentstring .= $token->[4];
1005: } elsif ($target eq 'tex') {
1006: $currentstring .= '\texttt{';
1.144 sakharuk 1007: }
1.122 albertel 1008: return $currentstring;
1009: }
1010:
1011: sub end_tt {
1012: my ($target,$token) = @_;
1013: my $currentstring = '';
1.325 albertel 1014: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1015: $currentstring .= $token->[2];
1016: } elsif ($target eq 'tex') {
1017: $currentstring .= '}';
1018: }
1019: return $currentstring;
1020: }
1021:
1.181 sakharuk 1022: #-- <kbd> tag (end tag required)
1.122 albertel 1023: sub start_kbd {
1024: my ($target,$token) = @_;
1025: my $currentstring = '';
1.325 albertel 1026: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1027: $currentstring .= $token->[4];
1028: } elsif ($target eq 'tex') {
1.179 sakharuk 1029: $currentstring .= '\texttt{';
1.144 sakharuk 1030: }
1.122 albertel 1031: return $currentstring;
1032: }
1033:
1034: sub end_kbd {
1035: my ($target,$token) = @_;
1036: my $currentstring = '';
1.325 albertel 1037: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1038: $currentstring .= $token->[2];
1039: } elsif ($target eq 'tex') {
1.179 sakharuk 1040: $currentstring .= '}';
1.144 sakharuk 1041: }
1.122 albertel 1042: return $currentstring;
1043: }
1044:
1.181 sakharuk 1045: #-- <code> tag (end tag required)
1.122 albertel 1046: sub start_code {
1047: my ($target,$token) = @_;
1048: my $currentstring = '';
1.325 albertel 1049: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1050: $currentstring .= $token->[4];
1051: } elsif ($target eq 'tex') {
1052: $currentstring .= '\texttt{';
1053: }
1054: return $currentstring;
1055: }
1056:
1057: sub end_code {
1058: my ($target,$token) = @_;
1059: my $currentstring = '';
1.325 albertel 1060: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1061: $currentstring .= $token->[2];
1062: } elsif ($target eq 'tex') {
1063: $currentstring .= '}';
1064: }
1065: return $currentstring;
1066: }
1067:
1.181 sakharuk 1068: #-- <em> tag (end tag required)
1.122 albertel 1069: sub start_em {
1070: my ($target,$token) = @_;
1071: my $currentstring = '';
1.325 albertel 1072: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1073: $currentstring .= $token->[4];
1074: } elsif ($target eq 'tex') {
1075: $currentstring .= '\emph{';
1.144 sakharuk 1076: }
1.122 albertel 1077: return $currentstring;
1078: }
1079:
1080: sub end_em {
1081: my ($target,$token) = @_;
1082: my $currentstring = '';
1.325 albertel 1083: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1084: $currentstring .= $token->[2];
1085: } elsif ($target eq 'tex') {
1086: $currentstring .= '}';
1.144 sakharuk 1087: }
1.122 albertel 1088: return $currentstring;
1089: }
1090:
1.181 sakharuk 1091: #-- <q> tag (end tag required)
1.122 albertel 1092: sub start_q {
1093: my ($target,$token) = @_;
1094: my $currentstring = '';
1.325 albertel 1095: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1096: $currentstring .= $token->[4];
1097: } elsif ($target eq 'tex') {
1.179 sakharuk 1098: $currentstring .= '\emph{';
1.122 albertel 1099: }
1100: return $currentstring;
1101: }
1102:
1103: sub end_q {
1104: my ($target,$token) = @_;
1105: my $currentstring = '';
1.325 albertel 1106: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1107: $currentstring .= $token->[2];
1108: } elsif ($target eq 'tex') {
1.179 sakharuk 1109: $currentstring .= '}';
1.144 sakharuk 1110: }
1.122 albertel 1111: return $currentstring;
1112: }
1113:
1.277 foxr 1114: # <p> is a bit strange since it does not require a closing </p>
1115: # However in latex, we must often output closing stuff to end
1116: # environments and {}'s etc. Therefore we do all the work
1117: # of figuring out the ending strings in the start tag processing,
1118: # and provide a mechanism to output the stop text external
1119: # to tag processing.
1120: #
1121: {
1122:
1123: my $closing_string = ''; # String required to close <p>
1124:
1.279 foxr 1125: # Some tags are <p> fragile meaning that <p> inside of them
1126: # does not work within TeX mode. This is managed via the
1127: # counter below:
1128: #
1129:
1130: my $para_disabled = 0;
1131:
1132: sub disable_para {
1133: $para_disabled++;
1134: }
1135: sub enable_para {
1136: $para_disabled--;
1137: }
1138:
1139:
1.181 sakharuk 1140: #-- <p> tag (end tag optional)
1.198 sakharuk 1141: #optional attribute - align="center|left|right"
1.122 albertel 1142: sub start_p {
1.157 sakharuk 1143: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1144: my $currentstring = '';
1.325 albertel 1145: if ($target eq 'web' || $target eq 'webgrade') {
1.279 foxr 1146: $currentstring .= &end_p(); # close off prior para if in progress.
1.122 albertel 1147: $currentstring .= $token->[4];
1.279 foxr 1148: if (! ($currentstring =~ /\//)) {
1149: $closing_string = '</p>'; # Deal correctly with <p /> e.g.
1150: }
1151: } elsif ($target eq 'tex' && !$para_disabled) {
1.313 foxr 1152:
1.279 foxr 1153: $currentstring .= &end_p(); # close off prior para if in progress.
1.198 sakharuk 1154: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1155: if ($align eq 'center') {
1.277 foxr 1156: $currentstring .='\begin{center}\par';
1157: $closing_string = '\end{center}';
1.309 albertel 1158: if (&is_inside_of($tagstack, "table")) {
1159: $currentstring = ¢er_correction().$currentstring;
1160: }
1.198 sakharuk 1161: } elsif ($align eq 'right') {
1.323 foxr 1162: $currentstring.="\n".'{\flushright ';
1163: # $currentstring.='\makebox['.$env{'form.textwidth'}.']{\hfill\llap{';
1164: $closing_string= "}\n";
1.198 sakharuk 1165: } elsif ($align eq 'left') {
1.323 foxr 1166: $currentstring.= "\n".'{\flushleft ';
1167: # $currentstring.='\noindent\makebox['.$env{'form.textwidth'}.']{{';
1168: $closing_string = "}\n";
1.216 matthew 1169: } else {
1.277 foxr 1170: $currentstring.='\par ';
1.313 foxr 1171: if (&is_inside_of($tagstack, 'table')) {
1.315 foxr 1172: $closing_string = '\vskip 0pt'; # Seems to be consistent with <p> in tables.
1.313 foxr 1173: } else {
1174: $closing_string = '\strut\\\\\strut ';
1175: }
1.216 matthew 1176: }
1.277 foxr 1177:
1.144 sakharuk 1178: }
1.122 albertel 1179: return $currentstring;
1180: }
1.277 foxr 1181: #
1182: # End paragraph processing just requires that we output the
1183: # closing string that was saved and blank it.
1184: sub end_p {
1.279 foxr 1185: # Note only 'tex' mode uses disable_para and enable_para
1186: # so we don't need to know the target in the check below:
1187:
1188: if (!$para_disabled) {
1189: my $current_string = $closing_string;
1190: $closing_string = ''; # Not in a para anymore.
1191: return $current_string;
1192: } else {
1193: return '';
1194: }
1.122 albertel 1195:
1196: }
1.277 foxr 1197: }
1.181 sakharuk 1198: #-- <br> tag (end tag forbidden)
1.122 albertel 1199: sub start_br {
1200: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1201: my $currentstring = '';
1.325 albertel 1202: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1203: $currentstring .= $token->[4];
1204: } elsif ($target eq 'tex') {
1.227 sakharuk 1205: my @tempo=@$tagstack;
1.229 sakharuk 1206: my $signal=0;
1.287 foxr 1207: # Not going to factor this to is_inside_of since that would require
1208: # multiple stack traversals.
1209: #
1.227 sakharuk 1210: for (my $i=$#tempo;$i>=0;$i--) {
1211: if (($tempo[$i] eq 'b') || ($tempo[$i] eq 'strong') ||
1.230 sakharuk 1212: ($tempo[$i] eq 'ol') || ($tempo[$i] eq 'ul') ||
1213: ($tempo[$i] eq 'td') || ($tempo[$i] eq 'th')) {
1.229 sakharuk 1214: $signal=1;
1.227 sakharuk 1215: last;
1216: }
1217: }
1.229 sakharuk 1218: if ($signal) {
1.219 sakharuk 1219: $currentstring .= ' \vskip 0 mm ';
1220: } elsif ($$tagstack[-2] ne 'sub' && $$tagstack[-2] ne 'sup') {
1221: $currentstring .= '\strut \\\\ \strut ';
1.1 sakharuk 1222: }
1.144 sakharuk 1223: }
1.122 albertel 1224: return $currentstring;
1225: }
1226:
1227: sub end_br {
1228: my ($target,$token) = @_;
1229: my $currentstring = '';
1.325 albertel 1230: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1231: $currentstring .= $token->[2];
1232: }
1233: return $currentstring;
1234: }
1235:
1.181 sakharuk 1236: #-- <big> tag (end tag required)
1.122 albertel 1237: sub start_big {
1238: my ($target,$token) = @_;
1239: my $currentstring = '';
1.325 albertel 1240: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1241: $currentstring .= $token->[4];
1242: } elsif ($target eq 'tex') {
1.137 sakharuk 1243: $currentstring .= '{\large ';
1.144 sakharuk 1244: }
1.122 albertel 1245: return $currentstring;
1246: }
1247:
1248: sub end_big {
1249: my ($target,$token) = @_;
1250: my $currentstring = '';
1.325 albertel 1251: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1252: $currentstring .= $token->[2];
1253: } elsif ($target eq 'tex') {
1254: $currentstring .= '}';
1255: }
1256: return $currentstring;
1257: }
1258:
1.181 sakharuk 1259: #-- <small> tag (end tag required)
1.122 albertel 1260: sub start_small {
1261: my ($target,$token) = @_;
1262: my $currentstring = '';
1.325 albertel 1263: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1264: $currentstring .= $token->[4];
1265: } elsif ($target eq 'tex') {
1266: $currentstring .= '{\footnotesize ';
1.144 sakharuk 1267: }
1.122 albertel 1268: return $currentstring;
1269: }
1270:
1271: sub end_small {
1272: my ($target,$token) = @_;
1273: my $currentstring = '';
1.325 albertel 1274: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1275: $currentstring .= $token->[2];
1276: } elsif ($target eq 'tex') {
1277: $currentstring .= '}';
1278: }
1279: return $currentstring;
1280: }
1281:
1.181 sakharuk 1282: #-- <basefont> tag (end tag forbidden)
1.122 albertel 1283: sub start_basefont {
1.126 sakharuk 1284: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.122 albertel 1285: my $currentstring = '';
1.325 albertel 1286: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1287: $currentstring = $token->[4];
1.126 sakharuk 1288: } elsif ($target eq 'tex') {
1289: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1290: if (defined $basesize) {
1291: $currentstring = '{\\'.$basesize.' ';
1292: }
1293: }
1.122 albertel 1294: return $currentstring;
1295: }
1296:
1297: sub end_basefont {
1.126 sakharuk 1298: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1299: my $currentstring = '';
1.325 albertel 1300: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1301: $currentstring = $token->[4];
1.126 sakharuk 1302: } elsif ($target eq 'tex') {
1303: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1304: if (defined $basesize) {
1305: $currentstring = '}';
1306: }
1307: }
1.122 albertel 1308: return $currentstring;
1309: }
1310:
1.181 sakharuk 1311: #-- <font> tag (end tag required)
1.122 albertel 1312: sub start_font {
1313: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1314: my $currentstring = '';
1.325 albertel 1315: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1316: my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
1.204 albertel 1317: if ($face!~/symbol/i) {
1.267 albertel 1318: if (($env{'browser.fontenhance'} eq 'on') ||
1319: ($env{'browser.blackwhite'} eq 'on')) { return ''; }
1.155 www 1320: }
1.122 albertel 1321: $currentstring = $token->[4];
1.126 sakharuk 1322: } elsif ($target eq 'tex') {
1323: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1324: if (defined $fontsize) {
1325: $currentstring = '{\\'.$fontsize.' ';
1326: }
1327: }
1.122 albertel 1328: return $currentstring;
1329: }
1330:
1331: sub end_font {
1332: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1333: my $currentstring = '';
1.325 albertel 1334: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1335: $currentstring = $token->[2];
1.126 sakharuk 1336: } elsif ($target eq 'tex') {
1337: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1338: if (defined $fontsize) {
1339: $currentstring = '}';
1340: }
1341: }
1.122 albertel 1342: return $currentstring;
1343: }
1344:
1.181 sakharuk 1345: #-- <strike> tag (end tag required)
1.122 albertel 1346: sub start_strike {
1347: my ($target,$token) = @_;
1348: my $currentstring = '';
1.325 albertel 1349: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1350: $currentstring .= $token->[4];
1351: } elsif ($target eq 'tex') {
1352: &Apache::lonxml::startredirection();
1353: }
1354: return $currentstring;
1355: }
1356:
1357: sub end_strike {
1358: my ($target,$token) = @_;
1359: my $currentstring = '';
1.325 albertel 1360: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1361: $currentstring .= $token->[2];
1362: } elsif ($target eq 'tex') {
1363: $currentstring=&Apache::lonxml::endredirection();
1364: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1365: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1366: $currentstring=~s/(\S)\s*$/$1\}/;
1367: }
1368: return $currentstring;
1369: }
1370:
1.181 sakharuk 1371: #-- <s> tag (end tag required)
1.122 albertel 1372: sub start_s {
1373: my ($target,$token) = @_;
1374: my $currentstring = '';
1.325 albertel 1375: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1376: $currentstring .= $token->[4];
1377: } elsif ($target eq 'tex') {
1378: &Apache::lonxml::startredirection();
1379: }
1380: return $currentstring;
1381: }
1382:
1383: sub end_s {
1384: my ($target,$token) = @_;
1385: my $currentstring = '';
1.325 albertel 1386: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1387: $currentstring .= $token->[2];
1388: } elsif ($target eq 'tex') {
1389: $currentstring=&Apache::lonxml::endredirection();
1390: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1391: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1392: $currentstring=~s/(\S)\s*$/$1\}/;
1393: }
1394: return $currentstring;
1395: }
1396:
1.181 sakharuk 1397: #-- <sub> tag (end tag required)
1.122 albertel 1398: sub start_sub {
1399: my ($target,$token) = @_;
1400: my $currentstring = '';
1.325 albertel 1401: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1402: $currentstring .= $token->[4];
1403: } elsif ($target eq 'tex') {
1.202 sakharuk 1404: $currentstring .= '\ensuremath{_{';
1.122 albertel 1405: }
1406: return $currentstring;
1407: }
1408:
1409: sub end_sub {
1410: my ($target,$token) = @_;
1411: my $currentstring = '';
1.325 albertel 1412: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1413: $currentstring .= $token->[2];
1414: } elsif ($target eq 'tex') {
1.202 sakharuk 1415: $currentstring .= '}}';
1.122 albertel 1416: }
1417: return $currentstring;
1418: }
1419:
1.181 sakharuk 1420: #-- <sup> tag (end tag required)
1.122 albertel 1421: sub start_sup {
1422: my ($target,$token) = @_;
1423: my $currentstring = '';
1.325 albertel 1424: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1425: $currentstring .= $token->[4];
1426: } elsif ($target eq 'tex') {
1.202 sakharuk 1427: $currentstring .= '\ensuremath{^{';
1.122 albertel 1428: }
1429: return $currentstring;
1430: }
1431:
1432: sub end_sup {
1433: my ($target,$token) = @_;
1434: my $currentstring = '';
1.325 albertel 1435: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1436: $currentstring .= $token->[2];
1437: } elsif ($target eq 'tex') {
1.202 sakharuk 1438: $currentstring .= '}}';
1.122 albertel 1439: }
1440: return $currentstring;
1441: }
1442:
1.181 sakharuk 1443: #-- <hr> tag (end tag forbidden)
1.122 albertel 1444: sub start_hr {
1.124 sakharuk 1445: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1446: my $currentstring = &end_p(); # End enclosing para.
1.325 albertel 1447: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1448: $currentstring .= $token->[4];
1449: } elsif ($target eq 'tex') {
1.149 sakharuk 1450: my $LaTeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1.124 sakharuk 1451: if (defined $LaTeXwidth) {
1452: if ($LaTeXwidth=~/^%/) {
1453: substr($LaTeXwidth,0,1)='';
1454: $LaTeXwidth=($LaTeXwidth/100).'\textwidth';
1455: }
1456: } else {
1.148 sakharuk 1457: $LaTeXwidth ='0.9\textwidth';
1.124 sakharuk 1458: }
1459: my ($pre,$post);
1460: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1461: if (($align eq 'center') || (not defined $align)) {
1462: $pre=''; $post='';
1463: } elsif ($align eq 'left') {
1464: $pre='\rlap{'; $post='} \hfill';
1465: } elsif ($align eq 'right') {
1466: $pre=' \hfill \llap{'; $post='}';
1467: }
1.148 sakharuk 1468: $currentstring .= ' \vskip 0 mm \noindent\makebox['.$LaTeXwidth.']{'.$pre.'\makebox['.
1.124 sakharuk 1469: $LaTeXwidth.'][b]{\hrulefill}'.$post.'}\vskip 0 mm ';
1.122 albertel 1470: }
1471: return $currentstring;
1472: }
1473:
1474: sub end_hr {
1475: my ($target,$token) = @_;
1476: my $currentstring = '';
1.325 albertel 1477: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1478: $currentstring .= $token->[2];
1.148 sakharuk 1479: }
1.122 albertel 1480: return $currentstring;
1481: }
1482:
1.181 sakharuk 1483: #-- <div> tag (end tag required)
1.280 foxr 1484: {
1485:
1486: # Since div can be nested, the stack below is used
1487: # in 'tex' mode to store the ending strings
1488: # for the div stack.
1489:
1490: my @div_end_stack;
1491:
1.122 albertel 1492: sub start_div {
1.280 foxr 1493: my ($target,$token, $tagstack, $parstack, $parser, $safeeval) = @_;
1.279 foxr 1494: my $currentstring = &end_p(); # Close enclosing para.
1.325 albertel 1495: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1496: $currentstring .= $token->[4];
1497: }
1.280 foxr 1498: if ($target eq 'tex') {
1499: # 4 possible alignments: left, right, center, and -missing-.
1500:
1501: my $endstring = '';
1502:
1503: my $align = lc(&Apache::lonxml::get_param('align', $parstack,
1504: $safeeval, undef, 1));
1505: if ($align eq 'center') {
1506: $currentstring .= '\begin{center}';
1507: $endstring = '\end{center}';
1.309 albertel 1508: if (&is_inside_of($tagstack, "table")) {
1509: $currentstring = ¢er_correction().$currentstring;
1510: }
1.280 foxr 1511: }
1512: elsif ($align eq 'right') {
1513: $currentstring .= '\begin{flushright}';
1514: $endstring .= '\end{flushright}';
1515: } elsif ($align eq 'left') {
1516: $currentstring .= '\begin{flushleft}';
1517: $endstring = '\end{flushleft}';
1518: } else {
1519:
1520: }
1521: $currentstring .= "\n"; # For human readability.
1522: $endstring = "\n$endstring\n"; # For human readability
1523: push(@div_end_stack, $endstring);
1524: }
1.122 albertel 1525: return $currentstring;
1526: }
1527:
1528: sub end_div {
1529: my ($target,$token) = @_;
1530: my $currentstring = '';
1.325 albertel 1531: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1532: $currentstring .= $token->[2];
1.280 foxr 1533: }
1534: if ($target eq 'tex') {
1535: my $endstring = pop @div_end_stack;
1536: $currentstring .= $endstring;
1537: }
1.122 albertel 1538: return $currentstring;
1539: }
1.280 foxr 1540: }
1.122 albertel 1541:
1.181 sakharuk 1542: #-- <a> tag (end tag required)
1.122 albertel 1543: sub start_a {
1.149 sakharuk 1544: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1545: my $currentstring = '';
1.325 albertel 1546: if ($target eq 'web' || $target eq 'webgrade') {
1.250 albertel 1547: my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
1548: undef,1);
1549: $currentstring=&Apache::lonenc::encrypt_ref($token,{'href'=>$href});
1.122 albertel 1550: } elsif ($target eq 'tex') {
1.149 sakharuk 1551: my $a=&Apache::lonxml::get_param('href',$parstack,$safeeval,undef,1);
1.161 sakharuk 1552: my $b=&Apache::lonxml::get_param('name',$parstack,$safeeval,undef,1);
1553: if ($a=~/\S/) {
1554: $a=~s/([^\\])%/$1\\\%/g;
1555: $currentstring .= '\ref{URI: '.$a.'}';
1556: } elsif ($b=~/\S/) {
1557: $currentstring .= '\ref{Anchor: '.$b.'}';
1558: } else {
1559: $currentstring.='';
1560: }
1.122 albertel 1561: }
1562: return $currentstring;
1563: }
1564:
1565: sub end_a {
1.168 albertel 1566: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1567: my $currentstring = '';
1.325 albertel 1568: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1569: $currentstring .= $token->[2];
1570: }
1571: return $currentstring;
1572: }
1573:
1.181 sakharuk 1574: #-- <li> tag (end tag optional)
1.122 albertel 1575: sub start_li {
1.168 albertel 1576: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1577: my $currentstring = '';
1.325 albertel 1578: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1579: $currentstring = $token->[4];
1580: } elsif ($target eq 'tex') {
1.237 sakharuk 1581: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1582: my $value=&Apache::lonxml::get_param('value',$parstack,$safeeval,undef,0);
1.238 albertel 1583: #FIXME need to support types i and I
1584: if ($type=~/disc/) {
1585: $currentstring .= ' \item[$\bullet$] ';
1586: } elsif ($type=~/circle/) {
1587: $currentstring .= ' \item[$\circ$] ';
1.146 sakharuk 1588: } elsif ($type=~/square/) {
1.238 albertel 1589: $currentstring .= ' \item[$\diamond$] ';
1590: } elsif ($type eq '1') {
1591: $currentstring .= ' \item['.($Apache::londefdef::list_index+1).'.]';
1.237 sakharuk 1592: } elsif ($type eq 'A') {
1.238 albertel 1593: $currentstring .= ' \item['.('A'..'Z')[$Apache::londefdef::list_index].'.]';
1.237 sakharuk 1594: } elsif ($type eq 'a') {
1.238 albertel 1595: $currentstring .= ' \item['.('a'..'z')[$Apache::londefdef::list_index].'.]';
1.237 sakharuk 1596: } elsif ($value ne '') {
1597: $currentstring .= ' \item['.$value.'] ';
1.122 albertel 1598: } else {
1.146 sakharuk 1599: $currentstring .= ' \item ';
1.122 albertel 1600: }
1.238 albertel 1601: $Apache::londefdef::list_index++;
1602: }
1.122 albertel 1603: return $currentstring;
1604: }
1605:
1606: sub end_li {
1607: my ($target,$token) = @_;
1.279 foxr 1608: my $currentstring = &end_p(); # In case there's a <p> in the <li>
1.325 albertel 1609: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1610: $currentstring .= $token->[2];
1.122 albertel 1611: }
1612: return $currentstring;
1613: }
1614:
1.181 sakharuk 1615: #-- <u> tag (end tag required)
1.122 albertel 1616: sub start_u {
1617: my ($target,$token) = @_;
1618: my $currentstring = '';
1.325 albertel 1619: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1620: $currentstring .= $token->[4];
1621: } elsif ($target eq 'tex') {
1622: &Apache::lonxml::startredirection();
1623: }
1624: return $currentstring;
1625: }
1626:
1627: sub end_u {
1628: my ($target,$token) = @_;
1629: my $currentstring = '';
1.325 albertel 1630: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1631: $currentstring .= $token->[2];
1632: } elsif ($target eq 'tex') {
1633: $currentstring=&Apache::lonxml::endredirection();
1634: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1635: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1636: $currentstring=~s/(\S)\s*$/$1\}/;
1637: }
1638: return $currentstring;
1639: }
1640:
1.181 sakharuk 1641: #-- <ul> tag (end tag required)
1.122 albertel 1642: sub start_ul {
1.125 sakharuk 1643: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1644: my $currentstring = &end_p(); # Close off enclosing list.
1.325 albertel 1645: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1646: $currentstring .= $token->[4];
1.122 albertel 1647: } elsif ($target eq 'tex') {
1.125 sakharuk 1648: my $TeXtype=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1.238 albertel 1649: $Apache::londefdef::list_index=0;
1.125 sakharuk 1650: if ($TeXtype eq 'disc') {
1.222 sakharuk 1651: $currentstring .= '\renewcommand{\labelitemi}{$\bullet$}'.
1652: '\renewcommand{\labelitemii}{$\bullet$}'.
1653: '\renewcommand{\labelitemiii}{$\bullet$}'.
1654: '\renewcommand{\labelitemiv}{$\bullet$}';
1.125 sakharuk 1655: } elsif ($TeXtype eq 'circle') {
1.222 sakharuk 1656: $currentstring .= '\renewcommand{\labelitemi}{$\circ$}'.
1657: '\renewcommand{\labelitemii}{$\circ$}'.
1658: '\renewcommand{\labelitemiii}{$\circ$}'.
1659: '\renewcommand{\labelitemiv}{$\circ$}';
1.125 sakharuk 1660: } elsif ($TeXtype eq 'square') {
1.222 sakharuk 1661: $currentstring .= '\renewcommand{\labelitemi}{$\diamond$}'.
1662: '\renewcommand{\labelitemii}{$\diamond$}'.
1663: '\renewcommand{\labelitemiii}{$\diamond$}'.
1664: '\renewcommand{\labelitemiv}{$\diamond$}';
1.125 sakharuk 1665: }
1.222 sakharuk 1666: $currentstring .= '\strut \begin{itemize}';
1.122 albertel 1667: }
1668: return $currentstring;
1669: }
1670:
1671: sub end_ul {
1672: my ($target,$token) = @_;
1673: my $currentstring = '';
1.325 albertel 1674: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1675: $currentstring = $token->[2];
1676: } elsif ($target eq 'tex') {
1.222 sakharuk 1677: $currentstring = '\end{itemize} \renewcommand{\labelitemi}{$\bullet$}'.
1678: '\renewcommand{\labelitemii}{$\bullet$}'.
1679: '\renewcommand{\labelitemiii}{$\bullet$}'.
1680: '\renewcommand{\labelitemiv}{$\bullet$}\strut ';
1.122 albertel 1681: }
1682: return $currentstring;
1683: }
1684:
1.181 sakharuk 1685: #-- <menu> tag (end tag required)
1.122 albertel 1686: sub start_menu {
1687: my ($target,$token) = @_;
1688: my $currentstring = '';
1.325 albertel 1689: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1690: $currentstring = $token->[4];
1691: } elsif ($target eq 'tex') {
1692: $currentstring = " \\begin{itemize} ";
1693: }
1694: return $currentstring;
1695: }
1696:
1697: sub end_menu {
1698: my ($target,$token) = @_;
1699: my $currentstring = '';
1.325 albertel 1700: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1701: $currentstring = $token->[2];
1702: } elsif ($target eq 'tex') {
1703: $currentstring = " \\end{itemize}";
1704: }
1705: return $currentstring;
1706: }
1707:
1.181 sakharuk 1708: #-- <dir> tag (end tag required)
1.122 albertel 1709: sub start_dir {
1710: my ($target,$token) = @_;
1.279 foxr 1711: my $currentstring = &end_p(); # In case there's a <p> prior to the list.
1.325 albertel 1712: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1713: $currentstring .= $token->[4];
1.122 albertel 1714: } elsif ($target eq 'tex') {
1.277 foxr 1715: $currentstring .= " \\begin{itemize} ";
1.122 albertel 1716: }
1717: return $currentstring;
1718: }
1719:
1720: sub end_dir {
1721: my ($target,$token) = @_;
1722: my $currentstring = '';
1.325 albertel 1723: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1724: $currentstring = $token->[2];
1725: } elsif ($target eq 'tex') {
1726: $currentstring = " \\end{itemize}";
1727: }
1728: return $currentstring;
1729: }
1730:
1.181 sakharuk 1731: #-- <ol> tag (end tag required)
1.122 albertel 1732: sub start_ol {
1.125 sakharuk 1733: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1734: my $currentstring = &end_p(); # In case there's a <p> prior to the list.
1.325 albertel 1735: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1736: $currentstring .= $token->[4];
1.122 albertel 1737: } elsif ($target eq 'tex') {
1.238 albertel 1738: $Apache::londefdef::list_index=0;
1.125 sakharuk 1739: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1740: if ($type eq '1') {
1.222 sakharuk 1741: $currentstring .= '\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1742: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1743: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1744: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}';
1.125 sakharuk 1745: } elsif ($type eq 'A') {
1.222 sakharuk 1746: $currentstring .= '\renewcommand{\labelenumi}{\Alph{enumi}.}'.
1747: '\renewcommand{\labelenumii}{\Alph{enumii}.}'.
1748: '\renewcommand{\labelenumiii}{\Alph{enumiii}.}'.
1749: '\renewcommand{\labelenumiv}{\Alph{enumiv}.}';
1.125 sakharuk 1750: } elsif ($type eq 'a') {
1.222 sakharuk 1751: $currentstring .= '\renewcommand{\labelenumi}{\alph{enumi}.}'.
1752: '\renewcommand{\labelenumii}{\alph{enumii}.}'.
1753: '\renewcommand{\labelenumiii}{\alph{enumiii}.}'.
1754: '\renewcommand{\labelenumiv}{\alph{enumiv}.}';
1.125 sakharuk 1755: } elsif ($type eq 'i') {
1.222 sakharuk 1756: $currentstring .= '\renewcommand{\labelenumi}{\roman{enumi}.}'.
1757: '\renewcommand{\labelenumii}{\roman{enumii}.}'.
1758: '\renewcommand{\labelenumiii}{\roman{enumiii}.}'.
1759: '\renewcommand{\labelenumiv}{\roman{enumiv}.}';
1.125 sakharuk 1760: } elsif ($type eq 'I') {
1.222 sakharuk 1761: $currentstring .= '\renewcommand{\labelenumi}{\Roman{enumi}.}'.
1762: '\renewcommand{\labelenumii}{\Roman{enumii}.}'.
1763: '\renewcommand{\labelenumiii}{\Roman{enumiii}.}'.
1764: '\renewcommand{\labelenumiv}{\Roman{enumiv}.}';
1.125 sakharuk 1765: }
1.222 sakharuk 1766: $currentstring .= '\strut \begin{enumerate}';
1.122 albertel 1767: }
1768: return $currentstring;
1769: }
1770:
1771: sub end_ol {
1772: my ($target,$token) = @_;
1773: my $currentstring = '';
1.325 albertel 1774: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1775: $currentstring = $token->[2];
1776: } elsif ($target eq 'tex') {
1.222 sakharuk 1777: $currentstring = '\end{enumerate}\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1778: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1779: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1780: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}\strut ';
1.122 albertel 1781: }
1782: return $currentstring;
1783: }
1784:
1.181 sakharuk 1785: #-- <dl> tag (end tag required)
1.122 albertel 1786: sub start_dl {
1787: my ($target,$token) = @_;
1.279 foxr 1788: my $currentstring = &end_p(); # In case there's a <p> unclosed prior to the list.
1.325 albertel 1789: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1790: $currentstring .= $token->[4];
1.122 albertel 1791: } elsif ($target eq 'tex') {
1.277 foxr 1792: $currentstring .= '\begin{description}';
1.243 albertel 1793: $Apache::londefdef::DL++;
1794: push(@Apache::londefdef::description,[]);
1795: $Apache::londefdef::DD[$Apache::londefdef::DL]=0;
1796: $Apache::londefdef::DT[$Apache::londefdef::DL]=0;
1.244 albertel 1797: $Apache::londefdef::seenDT[$Apache::londefdef::DL]=0;
1.122 albertel 1798: }
1799: return $currentstring;
1800: }
1801:
1802: sub end_dl {
1.174 sakharuk 1803: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1804: my $currentstring = '';
1.325 albertel 1805: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1806: $currentstring = $token->[2];
1807: } elsif ($target eq 'tex') {
1.243 albertel 1808: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1809: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
1810: foreach my $element (@{$Apache::londefdef::description[-1]}) {
1.174 sakharuk 1811: $currentstring.=' '.$element.' ';
1812: }
1.243 albertel 1813: pop(@Apache::londefdef::description);
1.174 sakharuk 1814: $currentstring.='\end{description}';
1.243 albertel 1815: delete($Apache::londefdef::DD[$Apache::londefdef::DL]);
1816: delete($Apache::londefdef::DT[$Apache::londefdef::DL]);
1.244 albertel 1817: delete($Apache::londefdef::seenDT[$Apache::londefdef::DL]);
1.243 albertel 1818: $Apache::londefdef::DL--;
1.122 albertel 1819: }
1820: return $currentstring;
1821: }
1822:
1.172 sakharuk 1823: #-- <dt> tag (end tag optional)
1.122 albertel 1824: sub start_dt {
1.172 sakharuk 1825: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1826: my $currentstring='';
1.325 albertel 1827: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1828: $currentstring = $token->[4];
1829: } elsif ($target eq 'tex') {
1.243 albertel 1830: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1831: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
1.174 sakharuk 1832: &Apache::lonxml::startredirection();
1.243 albertel 1833: $Apache::londefdef::DT[-1]++;
1.244 albertel 1834: $Apache::londefdef::seenDT[-1]=1;
1.122 albertel 1835: }
1836: return $currentstring;
1837: }
1838:
1839: sub end_dt {
1.172 sakharuk 1840: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1841: my $currentstring = '';
1.325 albertel 1842: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1843: $currentstring = $token->[2];
1844: } elsif ($target eq 'tex') {
1.243 albertel 1845: if ($Apache::londefdef::DT[-1]) {
1846: my $data=&item_cleanup();
1.244 albertel 1847: push(@{$Apache::londefdef::description[-1]},'\item['.$data.'] \strut \vskip 0mm');
1.243 albertel 1848: $Apache::londefdef::DT[-1]--;
1849: }
1.122 albertel 1850: }
1851: return $currentstring;
1852: }
1853:
1.173 sakharuk 1854: sub item_cleanup {
1.174 sakharuk 1855: my $item=&Apache::lonxml::endredirection();
1.173 sakharuk 1856: $item=~s/\\begin{center}//g;
1857: $item=~s/\\end{center}//g;
1858: return $item;
1859: }
1860:
1.181 sakharuk 1861: #-- <dd> tag (end tag optional)
1.122 albertel 1862: sub start_dd {
1.147 sakharuk 1863: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1864: my $currentstring = '';
1.325 albertel 1865: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1866: $currentstring = $token->[4];
1.147 sakharuk 1867: } elsif ($target eq 'tex') {
1.243 albertel 1868: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1869: if ($Apache::londefdef::DD[-1]) { &end_dd(@_);}
1.244 albertel 1870: if (!$Apache::londefdef::seenDT[-1]) {
1871: push(@{$Apache::londefdef::description[-1]},'\item[\strut] \strut \vskip 0mm ');
1872: }
1.243 albertel 1873: push(@{$Apache::londefdef::description[-1]},'');
1874: $Apache::londefdef::description[-1]->[-1].=' \strut ';
1875: $Apache::londefdef::DD[-1]++;
1.174 sakharuk 1876: &Apache::lonxml::startredirection();
1.122 albertel 1877: }
1878: return $currentstring;
1879: }
1880:
1881: sub end_dd {
1.174 sakharuk 1882: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1883: my $currentstring = '';
1.325 albertel 1884: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1885: $currentstring = $token->[2];
1.174 sakharuk 1886: } elsif ($target eq 'tex') {
1.243 albertel 1887: $Apache::londefdef::description[-1]->[-1].=
1888: &Apache::lonxml::endredirection().' \vskip 0mm ';
1889: $Apache::londefdef::DD[-1]--;
1.174 sakharuk 1890: }
1.122 albertel 1891: return $currentstring;
1892: }
1893:
1.181 sakharuk 1894: #-- <table> tag (end tag required)
1.277 foxr 1895: # <table> also ends any prior <p> that is not closed.
1896: # but, unless I allow <p>'s to nest, that's the
1897: # only way I could think of to allow <p> in
1898: # <tr> <th> bodies
1899: #
1.206 sakharuk 1900: #list of supported attributes: border,width,TeXwidth
1.91 sakharuk 1901: sub start_table {
1902: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 foxr 1903: my $textwidth = '';
1.279 foxr 1904: my $currentstring = &end_p();
1.325 albertel 1905: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1906: $currentstring .= $token->[4];
1.91 sakharuk 1907: } elsif ($target eq 'tex') {
1908: my $aa = {};
1909: push @Apache::londefdef::table, $aa;
1910: $Apache::londefdef::table[-1]{'row_number'} = -1;
1.222 sakharuk 1911: #maximum table's width (default coincides with text line length)
1.206 sakharuk 1912: if ($#Apache::londefdef::table==0) {
1.267 albertel 1913: $textwidth=&recalc($env{'form.textwidth'}); #result is always in mm
1.206 sakharuk 1914: $textwidth=~/(\d+\.?\d*)/;
1915: $textwidth=0.95*$1; #accounts "internal" LaTeX space for table frame
1916: } else {
1917: if ($Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}]=~/\d/) {
1918: #the maximum width of nested table is determined by LATeX width of parent cell
1919: $textwidth=$Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}];
1920: } else {
1921: #try to use all space not used before (minus 5% for LaTeX table internal) - rather silly
1.228 sakharuk 1922: $textwidth=$Apache::londefdef::table[-2]{'width'};
1.206 sakharuk 1923: for (my $i=0;$i<$Apache::londefdef::table[-2]{'counter_columns'};$i++) {
1924: $textwidth=$textwidth-$Apache::londefdef::table[-2]{'TeXlen'}[0][$i];
1925: }
1926: }
1927: }
1.294 foxr 1928:
1929: # width either comes forced from the TeXwidth or the width parameters.
1930: # in either case it can be a percentage or absolute width.
1.311 albertel 1931: # in the width case we ignore absolute width
1.126 sakharuk 1932: my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1.308 albertel 1933: if (!defined($TeXwidth)) {
1.311 albertel 1934: my $htmlwidth = &Apache::lonxml::get_param('width',$parstack,
1935: $safeeval,undef,1);
1936: if ($htmlwidth =~ /%/) {
1937: $TeXwidth = $htmlwidth;
1938: } else {
1939: $TeXwidth = $textwidth;
1940: }
1.294 foxr 1941: } else {
1942: $Apache::londefdef::table[-1]{'forcedtablewidth'} = 1;
1943: }
1944: if ($TeXwidth=~/%/) {
1.203 sakharuk 1945: $Apache::londefdef::table[-1]{'percent'}=1;
1.126 sakharuk 1946: $TeXwidth=~/(\d+)/;
1.206 sakharuk 1947: $Apache::londefdef::table[-1]{'width'}=$1*$textwidth/100;
1.126 sakharuk 1948: } else {
1.206 sakharuk 1949: $Apache::londefdef::table[-1]{'width'}=$TeXwidth;
1.316 foxr 1950: }
1951: # In the end, however the table width cannot be wider than $textwidth...
1952:
1953: if ($Apache::londefdef::table[-1]{'width'} > $textwidth) {
1954: $Apache::londefdef::table[-1]{'width'} = $textwidth;
1955: }
1.294 foxr 1956:
1.126 sakharuk 1957: #table's border
1.206 sakharuk 1958: my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval);
1.208 sakharuk 1959: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
1.91 sakharuk 1960: unless (defined $border) { $border = 0; }
1961: if ($border) {
1962: $Apache::londefdef::table[-1]{'hinc'} = '\hline ';
1963: $Apache::londefdef::table[-1]{'vinc'} = '&';
1964: $Apache::londefdef::table[-1]{'vvinc'} = '|';
1965: } else {
1966: $Apache::londefdef::table[-1]{'hinc'} = '';
1967: $Apache::londefdef::table[-1]{'vinc'} = '&';
1968: $Apache::londefdef::table[-1]{'vvinc'} = '';
1969: }
1.206 sakharuk 1970: if ($#Apache::londefdef::table==0) {
1.281 foxr 1971: # Note that \newline seems to destroy the alignment envs.
1972: # $Apache::londefdef::table[-1]{'output'}='\strut\newline\strut\setlength{\tabcolsep}{1 mm}';
1973: $Apache::londefdef::table[-1]{'output'}='\strut'.'\\\\'."\n".'\strut\setlength{\tabcolsep}{1 mm}';
1.206 sakharuk 1974: }
1975: $Apache::londefdef::table[-1]{'output'}.=' \noindent \begin{tabular} ';
1976: $Apache::londefdef::table[-1]{'TeXlen'}=[];
1977: $Apache::londefdef::table[-1]{'objectlen'}=[];
1.229 sakharuk 1978: $Apache::londefdef::table[-1]{'objectsignal'}=[];
1.206 sakharuk 1979: $Apache::londefdef::table[-1]{'maxlen'}=[];
1980: $Apache::londefdef::table[-1]{'minlen'}=[];
1981: $Apache::londefdef::table[-1]{'content'}=[];
1982: $Apache::londefdef::table[-1]{'align'}=[];
1.277 foxr 1983: $currentstring.='\keephidden{NEW TABLE ENTRY}';
1.295 foxr 1984:
1.294 foxr 1985:
1986: }
1.91 sakharuk 1987: return $currentstring;
1988: }
1.122 albertel 1989:
1990: sub end_table {
1991: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1992: my $currentstring = '';
1.325 albertel 1993: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1994: $currentstring = $token->[2];
1995: } elsif ($target eq 'tex') {
1996: my $inmemory = '';
1997: my $output = '';
1.206 sakharuk 1998: my $WARNING='';
1999: #width of columns from TeXwidth attributes
1.294 foxr 2000:
1.206 sakharuk 2001: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2002: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2003: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]<$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn]) {
2004: $Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]=$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn];
2005: }
2006: }
2007: }
2008: #free space and number of empty columns
2009: my ($available_space,$empty_columns)=($Apache::londefdef::table[-1]{'width'},0);
1.228 sakharuk 2010: if ($#Apache::londefdef::table ne 0) {$available_space=0.9*$available_space;}
1.206 sakharuk 2011: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2012: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]==0) {
2013: $empty_columns++;
2014: } else {
2015: $available_space=$available_space-$Apache::londefdef::table[-1]{'TeXlen'}[0][$jn];
2016: }
2017: }
2018: #boundaries for contents columns
2019: my @min_len=();#columns can not be narrower
2020: my @max_len=();#maximum length of column
2021: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2022: my ($localmin,$localmax)=(0,0);
2023: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2024: if ($localmin<$Apache::londefdef::table[-1]{'minlen'}[$in][$jn]) {
2025: $localmin=$Apache::londefdef::table[-1]{'minlen'}[$in][$jn];
2026: }
2027: if ($localmax<$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn]) {
2028: $localmax=$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn];
2029: }
2030: }
2031: push @min_len, $localmin;
2032: push @max_len, $localmax;
1.122 albertel 2033: }
1.206 sakharuk 2034: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2035: my $localmin=0,;
2036: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2037: if ($localmin<$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn]) {
2038: $localmin=$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn];
2039: }
2040: }
1.229 sakharuk 2041: if ($max_len[$jn]<$localmin) {
2042: $max_len[$jn]=$localmin;
2043: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
2044: }#object size is bigger
2045: if ($min_len[$jn]<$localmin) {
2046: $min_len[$jn]=$localmin;
2047: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
2048: }#object size is bigger
1.206 sakharuk 2049: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]!=0) {
2050: $min_len[$jn]=0;
2051: $max_len[$jn]=0;
2052: }
2053: }
2054: #final adjustment of column width
2055: my @fwidth=@{$Apache::londefdef::table[-1]{'TeXlen'}[0]};#final width array
2056: my @adjust=();
2057: #step 1. adjustment by maximum value
2058: my $space_neeeded=0;
2059: for (my $jn=0;$jn<=$#max_len;$jn++) {
2060: $space_neeeded=$space_neeeded+$max_len[$jn];
2061: }
2062: if ($space_neeeded<=$available_space) {
2063: for (my $jn=0;$jn<=$#max_len;$jn++) {
2064: if ($fwidth[$jn]==0) {
2065: $fwidth[$jn]=$max_len[$jn];
1.53 sakharuk 2066: }
1.51 sakharuk 2067: }
1.206 sakharuk 2068: } else {
2069: #step 2. adjustment by minimum value (estimation)
2070: $space_neeeded=0;
2071: for (my $jn=0;$jn<=$#min_len;$jn++) {
2072: $space_neeeded+=$min_len[$jn];
2073: }
2074: if ($space_neeeded>$available_space) {
2075: $WARNING=' \textbf{NOT ENOUGH SPACE FOR TABLE} ';
2076: for (my $jn=0;$jn<=$#max_len;$jn++) {
2077: if ($fwidth[$jn]==0) {
2078: $fwidth[$jn]=$min_len[$jn];
2079: }
2080: }
1.229 sakharuk 2081: #check if we have objects which can be scaled
2082: my $how_many_to_scale=0;
2083: my @to_scale=();
2084: for (my $jn=0;$jn<=$#max_len;$jn++) {
2085: if ($Apache::londefdef::table[-1]{'objectsignal'}[$jn] eq '1') {
2086: $how_many_to_scale++;
2087: push @to_scale, $jn;
2088: }
2089: }
2090: if ($how_many_to_scale>0) {
2091: my $space_to_adjust=($space_neeeded-$available_space)/$how_many_to_scale;
2092: foreach my $jn (@to_scale) {
2093: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2094: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/;
2095: if ($1 ne '') {
2096: my $current_length=&recalc($1);
2097: $current_length=~/(\d+\.?\d*)/;
2098: $current_length=$current_length-$space_to_adjust;
2099: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/width=$current_length mm/;
2100: }
2101: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/\[(\d+\.?\d*)\s*mm\]/;
2102: if ($1 ne '') {
2103: my $current_length=$1;
2104: $current_length=$current_length-$space_to_adjust;
2105: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/\[(\d+\.?\d*)\s*mm\]/\[$current_length mm\]/;
2106: }
2107: }
2108: $fwidth[$jn]=$fwidth[$jn]-$space_to_adjust;
2109: }
2110: }
1.206 sakharuk 2111: } else {
2112: #step 3. adjustment over minimal + corrections
2113: my $enlarge_coef=$available_space/$space_neeeded;
2114: my $acsessive=0;
2115: for (my $jn=0;$jn<=$#min_len;$jn++) {
2116: $adjust[$jn]=$min_len[$jn]*$enlarge_coef;
2117: if ($adjust[$jn]>$max_len[$jn]) {
2118: $fwidth[$jn]=$max_len[$jn];
2119: $acsessive=$acsessive+$adjust[$jn]-$max_len[$jn];
2120: $adjust[$jn]=0;
2121: }
2122: }
2123: if ($acsessive>0) {
2124: #we have an excess of space and can redistribute it
2125: my $notempty_columns=0;
2126: for (my $jn=0;$jn<=$#min_len;$jn++) {
2127: if ($adjust[$jn]!=0) {
2128: $notempty_columns++;
2129: }
2130: }
2131: my $per_column=$acsessive/$notempty_columns;
2132: for (my $jn=0;$jn<=$#min_len;$jn++) {
2133: if ($adjust[$jn]!=0) {
2134: $adjust[$jn]+=$per_column;
2135: $fwidth[$jn]=$adjust[$jn];
2136: }
1.223 sakharuk 2137: }
2138: } else {
2139: for (my $jn=0;$jn<=$#min_len;$jn++) {
2140: $fwidth[$jn]=$adjust[$jn];
1.206 sakharuk 2141: }
2142: }
1.203 sakharuk 2143: }
2144: }
1.222 sakharuk 2145: #use all available width if it is defined in % or as TeXwidth
2146: if (($Apache::londefdef::table[-1]{'percent'}==1) || ($Apache::londefdef::table[-1]{'forcetablewidth'}==1)) {
1.203 sakharuk 2147: my $current=0;
1.206 sakharuk 2148: for (my $i=0;$i<=$#fwidth;$i++) {
2149: $current+=$fwidth[$i];
1.203 sakharuk 2150: }
2151: my $coef=$Apache::londefdef::table[-1]{'width'}/$current;
1.206 sakharuk 2152: for (my $i=0;$i<=$#fwidth;$i++) {
2153: $fwidth[$i]*=$coef;
2154: }
2155: }
2156: #removing of empty columns if allowed
1.208 sakharuk 2157: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
1.206 sakharuk 2158: if ($permission eq 'yes') {
2159: my @cleaned_table=();
2160: my @cleaned_header=();
2161: my $colind=0;
2162: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2163: if ($fwidth[$jn]!=0) {
2164: #we need to copy column
2165: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2166: $cleaned_table[$in][$colind]=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
2167: $cleaned_header[$colind]=$fwidth[$jn];
2168: }
2169: $colind++;
2170: }
1.122 albertel 2171: }
1.206 sakharuk 2172: $Apache::londefdef::table[-1]{'content'}=\@cleaned_table;
2173: @fwidth=@cleaned_header;
1.122 albertel 2174: }
1.206 sakharuk 2175: #construct header of the table
2176: my $header_of_table = '{'.$Apache::londefdef::table[-1]{'vvinc'};
2177: for (my $in=0;$in<=$#fwidth;$in++) {
2178: $header_of_table.='p{'.$fwidth[$in].' mm}'.$Apache::londefdef::table[-1]{'vvinc'};
2179: }
2180: $header_of_table .= '}';
1.126 sakharuk 2181: #fill the table
2182: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1.306 foxr 2183: my $have_rowspan = 0;
1.206 sakharuk 2184: for (my $jn=0;$jn<=$#fwidth;$jn++) {
1.320 foxr 2185:
2186: #-----------------------------------------------------------
2187: # I think this order of doing things will ensure that
2188: # single rowspan, columspan and combined row/colspans will
2189: # work correctly. LaTeX is delicate here.
2190: # RF.
2191:
2192: # Start a rowspan if necessary:
2193:
2194: my $rowspan = $Apache::londefdef::table[-1]{'rowspan'}[$in][$jn];
2195: my $colspan = $Apache::londefdef::table[-1]{'colspan'}[$in][$jn];
1.304 foxr 2196: #
2197: # Do the appropriate magic if this has a colspan
2198: #
1.320 foxr 2199:
1.304 foxr 2200: if ($colspan > 1) {
2201: $output .= '\multicolumn{'.
2202: $colspan
2203: .'}{|l|}{';
2204: }
1.306 foxr 2205:
2206: if ($rowspan > 1) {
2207: $have_rowspan++;
2208: $output .= '\multirow{'.$rowspan.'}[0]{'.$fwidth[$jn].'mm}{';
2209: }
2210: if (($rowspan eq '^') || ($rowspan eq '_')) {
2211: $have_rowspan++;
2212: }
1.320 foxr 2213: #--------------------------------------------------------------
1.306 foxr 2214:
1.206 sakharuk 2215: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
1.309 albertel 2216: $output.=¢er_correction().'\begin{center}';
1.206 sakharuk 2217: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
2218: $output.=' \hfill \llap{'
2219: }
2220: $output.=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
2221: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
1.314 albertel 2222: $output.='\end{center}';
1.206 sakharuk 2223: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
2224: $output.='} ';
2225: }
1.306 foxr 2226: # Close off any open multirow:
2227:
2228: if ($rowspan > 1) {
2229: $output .= '}';
2230: }
1.304 foxr 2231: # Close off the colspan...
2232: #
2233: if ($colspan > 1) {
2234: $output .= '}';
2235: $jn += $colspan-1; # Adjust for number of rows really left.
2236: }
1.206 sakharuk 2237: if ($jn!=$#fwidth) {$output.=' '.$Apache::londefdef::table[-1]{'vinc'};}
2238: }
1.306 foxr 2239: # If have_rowspan > 0, and borders are on, then
2240: # we need to do more than put an \hline at the bottom of row.
2241: # we need to do the appropriate \cline to ensure that
2242: # the spanned rows don't have \hlines through them.
2243:
2244: if (($Apache::londefdef::table[-1]{'hinc'} =~ /\\hline/) && $have_rowspan) {
2245: $output .= ' \\\\ ';
2246: for (my $jn=0; $jn<=$#fwidth;$jn++) {
2247: my $rowspan = $Apache::londefdef::table[-1]{'rowspan'}[$in][$jn];
1.320 foxr 2248: if ($rowspan ne "^") {
2249: if (($rowspan <= 1) || ($rowspan eq '_')) {
2250: my $column = $jn+1;
2251: $output .= '\cline{'.$column.'-'.$column.'} ';
2252: }
1.306 foxr 2253: }
2254: }
2255:
2256: } else {
2257: $output.=' \\\\ '.$Apache::londefdef::table[-1]{'hinc'}.' ';
2258: }
1.122 albertel 2259: }
1.281 foxr 2260: # Note that \newline destroys alignment env's produced by e.g. <div>
2261: # $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut\newline\strut ';
2262: $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut'.'\\\\'."\n".'\strut ';
1.127 sakharuk 2263: if ($#Apache::londefdef::table > 0) {
2264: my $inmemory = $Apache::londefdef::table[-1]{'output'};
1.294 foxr 2265: # Figure out max/and min width by summing us and then
2266: # apply that to the current column of the table we nest in
2267: # if it's larger than the current width or the current width
2268: # is undefined.
2269: #
2270: my $min_nested_width = 0;
2271: my $max_nested_width = 0;
2272: for (my $col = 0; $col <= $Apache::londefdef::table[-1]{'counter_columns'}; $col++) {
2273: $min_nested_width += $min_len[$col];
2274: $max_nested_width += $max_len[$col];
1.300 foxr 2275:
1.294 foxr 2276: }
2277: # Fudge in an extra 5 mm for borders etc:
2278:
2279: $min_nested_width += 5;
2280: $max_nested_width += 5;
2281:
2282: my $outer_column = $Apache::londefdef::table[-2]{'counter_columns'};
2283: my $outer_row = $Apache::londefdef::table[-2]{'row_number'};
2284: if ($min_nested_width > $Apache::londefdef::table[-2]{'minlen'}[$outer_row][$outer_column]) {
2285: $Apache::londefdef::table[-2]{'minlen'}[$outer_row][$outer_column] = $min_nested_width;
2286: }
2287: if ($max_nested_width > $Apache::londefdef::table[-2]{'maxlen'}[$outer_row][$outer_column]) {
2288: $Apache::londefdef::table[-2]{'maxlen'}[$outer_row][$outer_column] = $max_nested_width;
2289: }
2290:
1.127 sakharuk 2291: pop @Apache::londefdef::table;
1.129 sakharuk 2292: push @{$Apache::londefdef::table[-1]{'include'}}, $inmemory;
1.127 sakharuk 2293: } else {
2294: $currentstring .= $Apache::londefdef::table[-1]{'output'};
2295: pop @Apache::londefdef::table;
1.143 sakharuk 2296: undef @Apache::londefdef::table;
1.127 sakharuk 2297: }
1.122 albertel 2298: }
2299: return $currentstring;
2300: }
2301:
1.166 sakharuk 2302: #-- <tr> tag (end tag optional)
1.122 albertel 2303: sub start_tr {
2304: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2305: my $currentstring = '';
1.325 albertel 2306: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2307: $currentstring = $token->[4];
2308: } elsif ($target eq 'tex') {
2309: $Apache::londefdef::table[-1]{'row_number'}++;
1.206 sakharuk 2310: my $alignchar=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.122 albertel 2311: if ($alignchar ne '') {
1.206 sakharuk 2312: push @ {$Apache::londefdef::table[-1]{'rows'} },substr($alignchar,0,1);
1.122 albertel 2313: } else {
2314: push @ {$Apache::londefdef::table[-1]{'rows'} }, 'l';
2315: }
2316: push ( @{ $Apache::londefdef::table[-1]{'rowdata'} }, $Apache::londefdef::table[-1]{'hinc'});
1.300 foxr 2317: #
2318: # Need to save the number of table columns to preserve the max # columns.
2319: #
2320: $Apache::londefdef::table[-1]{'prior_columns'} = $Apache::londefdef::table[-1]{'counter_columns'};
1.122 albertel 2321: $Apache::londefdef::table[-1]{'counter_columns'} = -1;
1.206 sakharuk 2322: push @ {$Apache::londefdef::table[-1]{'TeXlen'}}, [];
2323: push @ {$Apache::londefdef::table[-1]{'objectlen'}}, [];
2324: push @ {$Apache::londefdef::table[-1]{'minlen'}}, [];
2325: push @ {$Apache::londefdef::table[-1]{'maxlen'}}, [];
2326: push @ {$Apache::londefdef::table[-1]{'content'}}, [];
1.122 albertel 2327: }
2328: return $currentstring;
2329: }
2330:
2331: sub end_tr {
1.160 sakharuk 2332: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 2333: my $currentstring = &end_p(); # Close any pending <p> in the row.
1.325 albertel 2334: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 2335: $currentstring .= $token->[2];
1.122 albertel 2336: } elsif ($target eq 'tex') {
1.160 sakharuk 2337: if ($Apache::londefdef::TD_redirection) {
2338: &end_td_tex($parstack,$parser,$safeeval);
2339: }
1.300 foxr 2340: # Counter columns must be the maximum number of columns seen
2341: # in the table so far so:
2342: if ($Apache::londefdef::table[-1]{'prior_columns'} > $Apache::londefdef::table[-1]{'counter_columns'}) {
2343: $Apache::londefdef::table[-1]{'counter_columns'} = $Apache::londefdef::table[-1]{'prior_columns'};
2344: }
1.295 foxr 2345:
2346:
1.294 foxr 2347:
1.122 albertel 2348: }
2349: return $currentstring;
2350: }
2351:
1.166 sakharuk 2352: #-- <td> tag (end tag optional)
1.122 albertel 2353: sub start_td {
2354: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2355: my $currentstring = '';
1.325 albertel 2356: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2357: $currentstring = $token->[4];
2358: } elsif ($target eq 'tex') {
1.160 sakharuk 2359: $Apache::londefdef::TD_redirection = 1;
1.159 sakharuk 2360: &tag_check('tr','td',$tagstack,$parstack,$parser,$safeeval);
1.122 albertel 2361: }
2362: return $currentstring;
2363: }
1.159 sakharuk 2364:
2365: sub tag_check {
2366: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
1.160 sakharuk 2367: my @ar=@$parstack;
2368: for (my $i=$#ar-1;$i>=0;$i--) {
2369: if (lc($$tagstack[$i]) eq $good_tag) {
2370: &start_td_tex($parstack,$parser,$safeeval);
2371: last;
2372: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2373: splice @ar, $i+1;
2374: &end_td_tex(\@ar,$parser,$safeeval);
2375: &start_td_tex($parstack,$parser,$safeeval);
2376: last;
1.159 sakharuk 2377: }
1.160 sakharuk 2378: }
1.159 sakharuk 2379: return '';
2380: }
2381:
2382: sub start_td_tex {
2383: my ($parstack,$parser,$safeeval) = @_;
1.206 sakharuk 2384: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2385: if ($alignchar eq '') {
2386: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
1.159 sakharuk 2387: }
1.206 sakharuk 2388: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
1.159 sakharuk 2389: $Apache::londefdef::table[-1]{'counter_columns'}++;
1.206 sakharuk 2390: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2391: if (defined $TeXwidth) {
2392: my $current_length=&recalc($TeXwidth);
2393: $current_length=~/(\d+\.?\d*)/;
2394: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2395: }
1.159 sakharuk 2396: &Apache::lonxml::startredirection();
2397: return '';
2398: }
2399:
2400: sub end_td_tex {
2401: my ($parstack,$parser,$safeeval) = @_;
1.304 foxr 2402: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2403: my $current_column = $Apache::londefdef::table[-1]{'counter_columns'};
1.303 foxr 2404: my $data = &Apache::lonxml::endredirection();
2405:
1.305 foxr 2406: # The rowspan array of the table indicates which cells are part of a span.
2407: # n indicates the start of a span set of n rows.
2408: # ^ indicates a cell that continues a span set.
1.306 foxr 2409: # _ indicates the cell is at the bottom of a span set.
1.305 foxr 2410: # If this and subsequent cells are part of a rowspan, we must
2411: # push along the row until we find one that is not.
2412:
2413: while ((defined $Apache::londefdef::table[-1]{'rowspan'}[$current_row] [$current_column])
1.306 foxr 2414: && ($Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column] =~ /[\^\_]/)) {
1.305 foxr 2415: # Part of a span.
2416: push @ {$Apache::londefdef::table[-1]{'content'}[-1]}, '';
2417: $current_column++;
2418: }
2419: $Apache::londefdef::table[-1]{'counter_columns'} = $current_column;
2420:
2421:
1.320 foxr 2422: # Get the column and row spans.
2423: # Colspan can be done via \multicolumn if I can figure out the data structs.
2424:
2425: my $colspan = &Apache::lonxml::get_param('colspan', $parstack, $safeeval, undef, 0);
2426: if (!$colspan) {
2427: $colspan = 1;
2428: }
1.305 foxr 2429:
2430: my $rowspan = &Apache::lonxml::get_param('rowspan', $parstack, $safeeval, undef, 0);
2431: if (!$rowspan) {
2432: $rowspan = 1;
2433: }
2434:
1.303 foxr 2435:
1.305 foxr 2436:
1.320 foxr 2437: for (my $c = 0; $c < $colspan; $c++) {
2438: $Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column+$c] = $rowspan;
2439: for (my $i = 1; $i < $rowspan; $i++) {
2440: $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column+$c] = '^';
2441: if ($i == ($rowspan-1)) {
2442: $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column+$c] = '_';
2443: }
1.306 foxr 2444: }
1.305 foxr 2445: }
1.304 foxr 2446:
1.159 sakharuk 2447: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2448: if (defined $TeXwidth) {
1.206 sakharuk 2449: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2450: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2451: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
1.159 sakharuk 2452: } else {
1.206 sakharuk 2453: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2454: my $garbage_data=$data;
2455: my $fwidth=0;
2456: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2457: my $current_length=&recalc($1);
2458: $current_length=~/(\d+\.?\d*)/;
2459: if ($fwidth<$1) {$fwidth=$1;}
2460: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2461: }
2462: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2463: my $current_length=$1;
2464: if ($fwidth<$current_length) {$fwidth=$current_length;}
2465: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2466: }
2467: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2468: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2469: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2470: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
1.231 sakharuk 2471: } elsif ($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)*/) {
2472: my $garbage_data=$data;
2473: my $fwidth=0;
2474: while ($garbage_data=~/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)\s*\}/) {
2475: my $current_length=&recalc($1);
2476: $current_length=~/(\d+\.?\d*)/;
2477: if ($fwidth<$1) {$fwidth=$1;}
2478: $garbage_data=~s/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2479: }
2480: while ($garbage_data=~/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2481: my $current_length=&recalc($1);
2482: $current_length=~/(\d+\.?\d*)/;
2483: if ($fwidth<$1) {$fwidth=$1;}
2484: $garbage_data=~s/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2485: }
2486: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2487: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2488: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2489: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2490: $data=~s/\\\\\s*$//;
1.159 sakharuk 2491: } else {
1.166 sakharuk 2492: $data=~s/^\s+(\S.*)/$1/;
1.159 sakharuk 2493: $data=~s/(.*\S)\s+$/$1/;
1.166 sakharuk 2494: $data=~s/(\s)+/$1/;
1.206 sakharuk 2495: my ($current_length,$min_length)=(0,0);
1.166 sakharuk 2496: if ($data=~/\\vskip/) {
2497: my $newdata=$data;
2498: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2499: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2500: foreach my $elementdata (@newdata) {
1.206 sakharuk 2501: my $lengthnewdata=2.5*&LATEX_length($elementdata);
1.166 sakharuk 2502: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
1.206 sakharuk 2503: my @words=split(/ /,$elementdata);
2504: foreach my $word (@words) {
2505: my $lengthword=2.5*&LATEX_length($word);
2506: if ($min_length<$lengthword) {$min_length=$lengthword;}
2507: }
1.166 sakharuk 2508: }
2509: } else {
1.206 sakharuk 2510: $current_length=2.5*&LATEX_length($data);
2511: my @words=split(/ /,$data);
2512: foreach my $word (@words) {
1.228 sakharuk 2513: my $lengthword=2*&LATEX_length($word);
1.206 sakharuk 2514: if ($min_length<$lengthword) {$min_length=$lengthword;}
2515: }
1.166 sakharuk 2516: }
1.206 sakharuk 2517: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2518: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2519: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2520: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
1.159 sakharuk 2521: }
2522: }
1.302 foxr 2523: # Substitute all of the tables nested in this cell in their appropriate places.
2524:
2525:
2526: my $nested_count = $#{$Apache::londefdef::table[-1]{'include'}}; # This one is constant...
2527: for (my $in=0; $in<=$nested_count; $in++) {
1.301 foxr 2528: my $nested = shift @{$Apache::londefdef::table[-1]{'include'}};
2529: $nested =~ s/\\end\{tabular\}\\strut\\\\/\\end\{tabular\}/;
2530: # $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2531: $data =~ s/\\keephidden\{NEW TABLE ENTRY\}/$nested/;
2532:
2533: }
2534: # Should be be killing off the 'include' elements as they're used up?
1.305 foxr 2535:
1.206 sakharuk 2536: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
1.305 foxr 2537:
1.304 foxr 2538:
2539:
2540:
2541: # the colspan array will indicate how many columns will be spanned by this
2542: # cell..this requires that counter_columns also be adjusted accordingly
2543: # so that the next bunch of text goes in the right cell. Note that since
2544: # counter_columns is incremented in the start_td_tex, we adjust by colspan-1.
2545: #
2546:
2547: $Apache::londefdef::table[-1]{'counter_columns'} += $colspan -1;
2548: for (my $i = 0; $i < ($colspan -1); $i++) {
2549: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },'';
2550: }
1.320 foxr 2551: for (my $r = 0; $r < $rowspan; $r++) {
2552: $Apache::londefdef::table[-1]{'colspan'}[$current_row+$r][$current_column] = $colspan;
2553: # Put empty text in spanned cols.
2554:
2555: }
2556:
1.304 foxr 2557:
2558:
1.301 foxr 2559: return '';
1.159 sakharuk 2560: }
2561:
1.122 albertel 2562: sub end_td {
1.126 sakharuk 2563: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 2564: my $currentstring = '';
1.325 albertel 2565: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2566: $currentstring = $token->[2];
2567: } elsif ($target eq 'tex') {
1.160 sakharuk 2568: $Apache::londefdef::TD_redirection =0;
1.159 sakharuk 2569: &end_td_tex($parstack,$parser,$safeeval);
1.122 albertel 2570: }
2571: return $currentstring;
2572: }
2573:
1.166 sakharuk 2574: #-- <th> tag (end tag optional)
1.122 albertel 2575: sub start_th {
2576: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2577: my $currentstring = '';
1.325 albertel 2578: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2579: $currentstring = $token->[4];
2580: } elsif ($target eq 'tex') {
1.230 sakharuk 2581: $Apache::londefdef::TD_redirection = 1;
2582: &tagg_check('tr','th',$tagstack,$parstack,$parser,$safeeval);
1.122 albertel 2583: }
2584: return $currentstring;
1.130 sakharuk 2585: }
1.230 sakharuk 2586:
2587: sub tagg_check {
2588: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
2589: my @ar=@$parstack;
2590: for (my $i=$#ar-1;$i>=0;$i--) {
2591: if (lc($$tagstack[$i]) eq $good_tag) {
2592: &start_th_tex($parstack,$parser,$safeeval);
2593: last;
2594: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2595: splice @ar, $i+1;
2596: &end_th_tex(\@ar,$parser,$safeeval);
2597: &start_th_tex($parstack,$parser,$safeeval);
2598: last;
2599: }
2600: }
2601: return '';
2602: }
2603:
2604: sub start_th_tex {
2605: my ($parstack,$parser,$safeeval) = @_;
2606: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2607: if ($alignchar eq '') {
2608: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
2609: }
2610: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
2611: $Apache::londefdef::table[-1]{'counter_columns'}++;
2612: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2613: if (defined $TeXwidth) {
2614: my $current_length=&recalc($TeXwidth);
2615: $current_length=~/(\d+\.?\d*)/;
2616: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2617: }
2618: &Apache::lonxml::startredirection();
2619: return '';
2620: }
2621:
2622: sub end_th_tex {
2623: my ($parstack,$parser,$safeeval) = @_;
2624: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2625: my $data=&Apache::lonxml::endredirection();
2626: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2627: if (defined $TeXwidth) {
2628: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2629: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2630: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2631: } else {
2632: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2633: my $garbage_data=$data;
2634: my $fwidth=0;
2635: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2636: my $current_length=&recalc($1);
2637: $current_length=~/(\d+\.?\d*)/;
2638: if ($fwidth<$1) {$fwidth=$1;}
2639: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2640: }
2641: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2642: my $current_length=$1;
2643: if ($fwidth<$current_length) {$fwidth=$current_length;}
2644: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2645: }
2646: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2647: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2648: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2649: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2650: } else {
2651: $data=~s/^\s+(\S.*)/$1/;
2652: $data=~s/(.*\S)\s+$/$1/;
2653: $data=~s/(\s)+/$1/;
2654: my ($current_length,$min_length)=(0,0);
2655: if ($data=~/\\vskip/) {
2656: my $newdata=$data;
2657: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2658: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2659: foreach my $elementdata (@newdata) {
2660: my $lengthnewdata=2.5*&LATEX_length($elementdata);
2661: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
2662: my @words=split(/ /,$elementdata);
2663: foreach my $word (@words) {
2664: my $lengthword=2.5*&LATEX_length($word);
2665: if ($min_length<$lengthword) {$min_length=$lengthword;}
2666: }
2667: }
2668: } else {
2669: $current_length=2.5*&LATEX_length($data);
2670: my @words=split(/ /,$data);
2671: foreach my $word (@words) {
2672: my $lengthword=2*&LATEX_length($word);
2673: if ($min_length<$lengthword) {$min_length=$lengthword;}
2674: }
2675: }
2676: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2677: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2678: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2679: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
2680: }
2681: }
2682: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
2683: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2684: }
2685: #make data bold
2686: $data='\textbf{'.$data.'}';
2687: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
2688: return'';
2689: }
2690:
1.122 albertel 2691: sub end_th {
1.130 sakharuk 2692: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 2693: my $currentstring = &end_p(); # Close any open <p> in the row.
1.325 albertel 2694: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 2695: $currentstring .= $token->[2];
1.122 albertel 2696: } elsif ($target eq 'tex') {
1.230 sakharuk 2697: $Apache::londefdef::TD_redirection =0;
2698: &end_th_tex($parstack,$parser,$safeeval);
1.122 albertel 2699: }
2700: return $currentstring;
2701: }
1.230 sakharuk 2702:
1.181 sakharuk 2703: #-- <img> tag (end tag forbidden)
1.249 foxr 2704: #
2705: # Render the <IMG> tag.
2706: # <IMG> has the following attributes (in addition to the
2707: # standard HTML ones:
2708: # TeXwrap - Governs how the tex target will try to wrap text around
2709: # horizontally aligned images.
2710: # TeXwidth - The width of the image when rendered for print (mm).
2711: # TeXheight - The height of the image when rendered for print (mm)
2712: # (Note there seems to also be support for this as a % of page size)
2713: #
1.122 albertel 2714: sub start_img {
1.299 albertel 2715: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 2716: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,
2717: undef,1);
1.325 albertel 2718: if (! $src &&
2719: ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex')
2720: ) {
1.299 albertel 2721: my $inside = &Apache::lonxml::get_all_text("/img",$parser,$style);
1.189 albertel 2722: return '';
2723: }
1.290 albertel 2724: &Apache::lonxml::extlink($src);
1.122 albertel 2725: my $currentstring = '';
2726: my $scaling = .3;
1.249 foxr 2727:
2728: # Render unto browsers that which are the browser's...
2729:
1.325 albertel 2730: if ($target eq 'web' || $target eq 'webgrade') {
1.267 albertel 2731: if ($env{'browser.imagesuppress'} ne 'on') {
1.322 albertel 2732: my $enc = ('yes' eq
2733: lc(&Apache::lonxml::get_param('encrypturl',$parstack,
2734: $safeeval)));
2735: $currentstring.=&Apache::lonenc::encrypt_ref($token,{'src'=>$src},
2736: $enc);
1.122 albertel 2737: } else {
1.322 albertel 2738: my $alttag = &Apache::lonxml::get_param('alt',$parstack,$safeeval,
2739: undef,1);
2740: if (!$alttag) {
2741: $alttag = &Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2742: $src);
1.51 sakharuk 2743: }
1.158 sakharuk 2744: $currentstring.='[IMAGE: '.$alttag.']';
1.1 sakharuk 2745: }
1.249 foxr 2746:
2747: # and render unto TeX that which is LaTeX
2748:
1.122 albertel 2749: } elsif ($target eq 'tex') {
1.248 foxr 2750: #
2751: # The alignment will require some superstructure to be put around
2752: # the \includegraphics stuff. At present we can only partially
2753: # simulate the alignments offered by html.
2754: #
2755: #
2756: my $align = lc(&Apache::lonxml::get_param('align',
2757: $parstack,
2758: $safeeval,
2759: undef,1));
2760: if(!$align) {
1.287 foxr 2761: $align = "bottom"; # This is html's default so it's ours too.
1.248 foxr 2762: }
2763: #
2764: &Apache::lonxml::debug("Alignemnt = $align");
2765: # LaTeX's image/text wrapping is really bad since it wants to
2766: # make figures float.
2767: # The user has the optional parameter (applicable only to l/r
2768: # alignment to use the picins/parpic directive to get wrapped text
2769: # this is also imperfect.. that's why we give them a choice...
2770: # so they can't yell at us for our choice.
2771: #
2772: my $latex_rendering = &Apache::lonxml::get_param('TeXwrap',
2773: $parstack,
2774: $safeeval,
2775: undef,0);
1.312 foxr 2776: # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering");
1.248 foxr 2777: if(!$latex_rendering) {
1.312 foxr 2778: $latex_rendering = "texwrap";
2779: }
2780: # using texwrap inside a table does not work. So, if after all of this,
2781: # texwrap is on, we turn it off if we detect we're in a table:
2782: #
2783: if (($latex_rendering eq 'texwrap') && &is_inside_of($tagstack, "table")) {
2784: $latex_rendering = 'parpic';
1.248 foxr 2785: }
1.323 foxr 2786:
1.312 foxr 2787: # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering image file: $src");
1.248 foxr 2788:
1.256 albertel 2789: #if original gif/jpg/png file exist do following:
1.266 albertel 2790: my $origsrc=$src;
1.256 albertel 2791: my ($path,$file) = &get_eps_image($src);
1.122 albertel 2792: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.261 foxr 2793: &Apache::lonxml::debug("path = $path file = $file src = $src");
1.192 sakharuk 2794: if (-e $src) {
1.261 foxr 2795: &Apache::lonxml::debug("$src exists");
1.256 albertel 2796: my ($height_param,$width_param)=
1.266 albertel 2797: &image_size($origsrc,0.3,$parstack,$safeeval);
1.262 foxr 2798: my $destpath = $path;
1.263 foxr 2799: $destpath =~ s/ /\_/g; # Spaces in path cause LaTex to vomit.
2800: my $destfile = $file;
2801: $destfile =~ s/ /\_/g;
1.266 albertel 2802: my $size;
2803: if ($width_param) { $size.='width='.$width_param.' mm,'; }
2804: if ($height_param) { $size.='height='.$height_param.' mm]'; }
2805: $size='['.$size;
2806: $size=~s/,$/]/;
1.262 foxr 2807: $currentstring .= '\graphicspath{{'.$destpath.'}}'
1.266 albertel 2808: .'\includegraphics'.$size.'{'.$destfile.'} ';
1.256 albertel 2809:
1.248 foxr 2810: # If there's an alignment specification we need to honor it here.
2811: # For the horizontal alignments, we will also honor the
2812: # value of the latex specfication. The default is parbox,
2813: # and that's used for illegal values too.
2814: #
2815: # Even though we set a default alignment value, the user
2816: # could have given us an illegal value. In that case we
2817: # just use the default alignment of bottom..
2818: if ($align eq "top") {
2819: $currentstring = '\raisebox{-'.$height_param.'mm}{'.$currentstring.'}';
2820: } elsif (($align eq "center") || ($align eq "middle")) { # Being kind
2821: my $offset = $height_param/2;
2822: $currentstring = '\raisebox{-'.$offset.'mm}{'.$currentstring.'}';
2823: } elsif ($align eq "left") {
2824: if ($latex_rendering eq "parpic") {
2825: $currentstring = '\parpic[l]{'.$currentstring.'}';
1.286 foxr 2826: } else { # wrapfig render
2827: $currentstring = '\begin{wrapfigure}{l}{'.$width_param.'mm}'
2828: .'\scalebox{1.0}{'.$currentstring.'}\end{wrapfigure}';
1.248 foxr 2829: }
2830: } elsif ($align eq "right") {
2831: if ($latex_rendering eq "parpic") {
2832: $currentstring = '\parpic[r]{'.$currentstring.'}';
1.286 foxr 2833: } else { # wrapfig rendering
2834: $currentstring = '\begin{wrapfigure}{r}{'.$width_param.'mm}'
2835: .'\scalebox{1.0}{'.$currentstring.'}\end{wrapfigure}';
2836:
1.248 foxr 2837: }
2838: } else { # Bottom is also default.
2839: # $currentstring = '\raisebox{'.$height_param.'mm}{'.$currentstring.'}';
2840: }
1.122 albertel 2841: } else {
1.261 foxr 2842: &Apache::lonxml::debug("$src does not exist");
1.122 albertel 2843: #original image file doesn't exist so check the alt attribute
2844: my $alt =
2845: &Apache::lonxml::get_param('alt',$parstack,$safeeval,undef,1);
2846: unless ($alt) {
2847: $alt=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
2848: }
2849:
1.256 albertel 2850: if ($alt) { $currentstring .= ' '.$alt.' '; }
1.59 sakharuk 2851: }
1.249 foxr 2852:
2853: # And here's where the semi-quote breaks down: allow the user
2854: # to edit the beast as well by rendering the problem for edit:
1.186 albertel 2855: } elsif ($target eq 'edit') {
2856: $currentstring .=&Apache::edit::tag_start($target,$token);
2857: $currentstring .=&Apache::edit::text_arg('Image Url:','src',$token,70).
2858: &Apache::edit::browse('src',undef,'alt').' '.
2859: &Apache::edit::search('src',undef,'alt').'<br />';
2860: $currentstring .=&Apache::edit::text_arg('Description:','alt',$token,70).'<br />';
2861: $currentstring .=&Apache::edit::text_arg('width (pixel):','width',$token,5);
2862: $currentstring .=&Apache::edit::text_arg('height (pixel):','height',$token,5).'<br />';
2863: $currentstring .=&Apache::edit::text_arg('TeXwidth (mm):','TeXwidth',$token,5);
2864: $currentstring .=&Apache::edit::text_arg('TeXheight (mm):','TeXheight',$token,5);
1.234 albertel 2865: $currentstring .=&Apache::edit::select_arg('Alignment:','align',
2866: ['','bottom','middle','top','left','right'],$token,5);
1.249 foxr 2867: $currentstring .=&Apache::edit::select_arg('TeXwrap:', 'TeXwrap',
2868: ['', 'parbox', 'parpic'], $token, 2);
1.322 albertel 2869: $currentstring .=&Apache::edit::select_arg('Encyrpt URL:','encrypturl',
2870: ['no','yes'], $token, 2);
1.186 albertel 2871: $currentstring .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1.249 foxr 2872: my $src= &Apache::lonxml::get_param('src',$parstack,$safeeval);
2873: my $alt= &Apache::lonxml::get_param('alt',$parstack,$safeeval);
2874: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
2875: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
2876:
2877:
1.186 albertel 2878: $currentstring .= '<img src="'.$src.'" alt="'.$alt.'" ';
2879: if ($width) { $currentstring.=' width="'.$width.'" '; }
2880: if ($height) { $currentstring.=' height="'.$height.'" '; }
2881: $currentstring .= ' />';
2882: } elsif ($target eq 'modified') {
1.210 albertel 2883: my ($osrc,$owidth,$oheight)=
2884: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2885: my $ctag=&Apache::edit::get_new_args($token,$parstack,
1.234 albertel 2886: $safeeval,'src','alt','align',
1.249 foxr 2887: 'TeXwidth','TeXheight', 'TeXwrap',
1.322 albertel 2888: 'width','height','encrypturl');
1.210 albertel 2889: my ($nsrc,$nwidth,$nheight)=
2890: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2891: my $loc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$nsrc);
2892: &image_replication($loc);
2893: my ($iwidth,$iheight);
2894: if (-e $loc) {
2895: my $image = Image::Magick->new;
2896: $image->Read($loc);
2897: ($iwidth, $iheight) = ($image->Get('width'),
2898: $image->Get('height'));
2899: }
2900: if ($osrc ne $nsrc || (!$nwidth && !$nheight)) {
2901: # changed image or no size specified,
2902: # if they didn't explicitly change the
2903: # width or height use the ones from the image
2904: if ($iwidth && $iheight) {
2905: if ($owidth == $nwidth || (!$nwidth && !$nheight)) {
2906: $token->[2]{'width'} = $iwidth;$ctag=1;
2907: }
2908: if ($oheight == $nheight || (!$nwidth && !$nheight)) {
2909: $token->[2]{'height'}=$iheight;$ctag=1;
1.186 albertel 2910: }
2911: }
2912: }
1.210 albertel 2913: my ($cwidth,$cheight)=($token->[2]{'width'},$token->[2]{'height'});
2914: # if we don't have a width or height
2915: if ($iwidth && $cwidth && !$cheight) {
2916: $token->[2]{'height'}=int(($cwidth/$iwidth)*$iheight);$ctag=1;
2917: }
2918: if ($iheight && $cheight && !$cwidth) {
2919: $token->[2]{'width'}=int(($cheight/$iheight)*$iwidth);$ctag=1;
2920: }
2921: if ($ctag) {$currentstring=&Apache::edit::rebuild_tag($token);}
1.122 albertel 2922: }
1.261 foxr 2923:
1.122 albertel 2924: return $currentstring;
2925: }
2926:
2927: sub end_img {
2928: my ($target,$token) = @_;
2929: my $currentstring = '';
1.325 albertel 2930: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2931: $currentstring = $token->[2];
2932: } elsif ($target eq 'tex') {
2933: $currentstring = '';
2934: }
2935: return $currentstring;
2936: }
2937:
1.181 sakharuk 2938: #-- <applet> tag (end tag required)
1.122 albertel 2939: sub start_applet {
2940: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2941:
2942: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,undef,1);
1.290 albertel 2943: &Apache::lonxml::extlink($code);
1.122 albertel 2944: my $archive=&Apache::lonxml::get_param('archive',$parstack,$safeeval,
2945: undef,1);
1.290 albertel 2946: &Apache::lonxml::extlink($archive);
1.122 albertel 2947: my $currentstring = '';
1.325 albertel 2948: if ($target eq 'web' || $target eq 'webgrade') {
1.267 albertel 2949: if ($env{'browser.appletsuppress'} ne 'on') {
1.250 albertel 2950: $currentstring = &Apache::lonenc::encrypt_ref($token,
2951: {'code'=>$code,
2952: 'archive'=>$archive}
2953: );
1.122 albertel 2954: } else {
2955: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
2956: $safeeval,undef,1);
2957: unless ($alttag) {
2958: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2959: $code);
1.44 sakharuk 2960: }
1.122 albertel 2961: $currentstring='[APPLET: '.$alttag.']';
1.1 sakharuk 2962: }
1.122 albertel 2963: } elsif ($target eq 'tex') {
1.177 albertel 2964: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
2965: $safeeval,undef,1);
2966: unless ($alttag) {
2967: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,
2968: undef,1);
2969: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2970: $code);
1.175 sakharuk 2971: }
1.177 albertel 2972: $currentstring.='\begin{center} \fbox{Java Applet: '.$alttag.
2973: '.}\end{center}';
1.122 albertel 2974: }
2975: return $currentstring;
2976: }
2977:
2978: sub end_applet {
2979: my ($target,$token) = @_;
2980: my $currentstring = '';
1.325 albertel 2981: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2982: $currentstring = $token->[2];
2983: } elsif ($target eq 'tex') {
2984: }
2985: return $currentstring;
2986: }
2987:
1.181 sakharuk 2988: #-- <embed> tag (end tag optional/required)
1.122 albertel 2989: sub start_embed {
2990: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2991: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
1.290 albertel 2992: &Apache::lonxml::extlink($src);
1.122 albertel 2993: my $currentstring = '';
1.325 albertel 2994: if ($target eq 'web' || $target eq 'webgrade') {
1.267 albertel 2995: if ($env{'browser.embedsuppress'} ne 'on') {
1.250 albertel 2996: $currentstring=&Apache::lonenc::encrypt_ref($token,{'src'=>$src});
1.122 albertel 2997: } else {
2998: my $alttag=&Apache::lonxml::get_param
2999: ('alt',$parstack,$safeeval,undef,1);
3000: unless ($alttag) {
3001: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
1.42 albertel 3002: }
1.122 albertel 3003: $currentstring='[EMBED: '.$alttag.']';
1.10 www 3004: }
1.122 albertel 3005: } elsif ($target eq 'tex') {
3006: }
3007: return $currentstring;
3008: }
3009:
3010: sub end_embed {
3011: my ($target,$token) = @_;
3012: my $currentstring = '';
1.325 albertel 3013: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3014: $currentstring = $token->[2];
1.175 sakharuk 3015: } elsif ($target eq 'tex') {
1.122 albertel 3016: }
3017: return $currentstring;
3018: }
3019:
1.181 sakharuk 3020: #-- <param> tag (end tag forbidden)
1.122 albertel 3021: sub start_param {
3022: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.290 albertel 3023: if (&Apache::lonxml::get_param('name',$parstack,
3024: $safeeval,undef,1)=~/^cabbase$/i) {
3025: my $value=&Apache::lonxml::get_param('value',$parstack,
3026: $safeeval,undef,1);
3027: &Apache::lonxml::extlink($value);
3028: }
3029:
3030: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
3031: &Apache::lonxml::extlink($src);
1.122 albertel 3032: my $currentstring = '';
1.325 albertel 3033: if ($target eq 'web' || $target eq 'webgrade') {
1.250 albertel 3034: my %toconvert;
3035: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
3036: if ($src) { $toconvert{'src'}= $src; }
3037: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval,
3038: undef,1);
1.251 albertel 3039: if ($name=~/^cabbase$/i) {
3040: $toconvert{'value'}=&Apache::lonxml::get_param('value',$parstack,
3041: $safeeval,undef,1);
3042: }
1.250 albertel 3043: $currentstring = &Apache::lonenc::encrypt_ref($token,\%toconvert);
1.122 albertel 3044: } elsif ($target eq 'tex') {
3045: }
3046: return $currentstring;
3047: }
3048:
3049: sub end_param {
3050: my ($target,$token) = @_;
3051: my $currentstring = '';
1.325 albertel 3052: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3053: $currentstring = $token->[2];
3054: } elsif ($target eq 'tex') {
3055: }
3056: return $currentstring;
3057: }
3058:
3059: #-- <allow> tag
3060: sub start_allow {
3061: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3062: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
1.290 albertel 3063: &Apache::lonxml::extlink($src);
3064:
1.241 albertel 3065: if ($target eq 'tex') { &image_replication($src); }
1.122 albertel 3066: my $result;
3067: if ($target eq 'edit') {
3068: $result .=&Apache::edit::tag_start($target,$token);
3069: $result .=&Apache::edit::text_arg('File Spec:','src',$token,70);
3070: $result .=&Apache::edit::end_row();#.&Apache::edit::start_spanning_row();
3071: } elsif ($target eq 'modified') {
3072: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
3073: $safeeval,'src');
3074: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
3075: }
3076: return $result;
3077: }
3078:
3079: sub end_allow {
3080: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3081: if ( $target eq 'edit') { return (&Apache::edit::end_table()); }
3082: return '';
3083: }
1.119 www 3084:
1.181 sakharuk 3085: #-- Frames (end tag required)
3086: #-- <frameset>
1.122 albertel 3087: sub start_frameset {
3088: my ($target,$token) = @_;
1.277 foxr 3089: my $currentstring = ''; # Close any pending para.
1.325 albertel 3090: if ($target eq 'web' || $target eq 'webgrade') {
1.328 albertel 3091: $currentstring =
3092: &Apache::loncommon::start_page($Apache::londefdef::title,
3093: $Apache::londefdef::head,
3094: {'add_entries' => $token->[2],
3095: 'no_title' => 1,
3096: 'force_register' => 1,
3097: 'frameset' => 1,});
3098:
1.122 albertel 3099: }
3100: return $currentstring;
3101: }
3102:
3103: sub end_frameset {
3104: my ($target,$token) = @_;
3105: my $currentstring = '';
1.325 albertel 3106: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3107: $currentstring = $token->[2];
3108: }
3109: return $currentstring;
3110: }
1.162 sakharuk 3111:
1.181 sakharuk 3112: #-- <xmp> (end tag required)
1.162 sakharuk 3113: sub start_xmp {
3114: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3115: my $currentstring = '';
1.325 albertel 3116: if ($target eq 'web' || $target eq 'webgrade') {
1.162 sakharuk 3117: $currentstring .= $token->[4];
3118: } elsif ($target eq 'tex') {
3119: $currentstring .= '\begin{verbatim}';
3120: }
3121: return $currentstring;
3122: }
3123:
3124: sub end_xmp {
3125: my ($target,$token) = @_;
3126: my $currentstring = '';
1.325 albertel 3127: if ($target eq 'web' || $target eq 'webgrade') {
1.162 sakharuk 3128: $currentstring .= $token->[2];
3129: } elsif ($target eq 'tex') {
3130: $currentstring .= '\end{verbatim}';
3131: }
3132: return $currentstring;
3133: }
3134:
1.181 sakharuk 3135: #-- <pre> (end tag required)
1.122 albertel 3136: sub start_pre {
1.126 sakharuk 3137: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 3138: my $currentstring = &end_p(); # close off pending <p>
1.325 albertel 3139: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3140: $currentstring .= $token->[4];
3141: } elsif ($target eq 'tex') {
1.136 sakharuk 3142: $currentstring .= '\begin{verbatim}';
1.319 albertel 3143: &Apache::lonxml::disable_LaTeX_substitutions();
1.122 albertel 3144: }
3145: return $currentstring;
3146: }
3147:
3148: sub end_pre {
3149: my ($target,$token) = @_;
3150: my $currentstring = '';
1.325 albertel 3151: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3152: $currentstring .= $token->[2];
3153: } elsif ($target eq 'tex') {
1.136 sakharuk 3154: $currentstring .= '\end{verbatim}';
1.319 albertel 3155: &Apache::lonxml::enable_LaTeX_substitutions();
1.122 albertel 3156: }
3157: return $currentstring;
3158: }
3159:
3160: #-- <insert>
3161: sub start_insert {
3162: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3163: my $currentstring = '';
1.325 albertel 3164: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3165: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
3166: $currentstring .= '<b>'.$display.'</b>';;
3167: }
3168: return $currentstring;
3169: }
3170:
3171: sub end_insert {
3172: my ($target,$token) = @_;
3173: my $currentstring = '';
1.325 albertel 3174: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3175: $currentstring .= '';
3176: }
3177: return $currentstring;
3178: }
3179:
3180: #-- <externallink>
3181: sub start_externallink {
3182: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3183: my $currentstring = '';
1.325 albertel 3184: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3185: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
3186: $currentstring .= '<b>'.$display.'</b>';;
3187: }
3188: return $currentstring;
3189: }
3190:
3191: sub end_externallink {
3192: my ($target,$token) = @_;
3193: my $currentstring = '';
1.325 albertel 3194: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3195: $currentstring .= '';
3196: }
3197: return $currentstring;
3198: }
3199:
3200: #-- <blankspace heigth="">
3201: sub start_blankspace {
3202: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 3203: my $currentstring = &end_p(); # closes off any unclosed <p>
1.122 albertel 3204: if ($target eq 'tex') {
3205: my $howmuch = &Apache::lonxml::get_param('heigth',$parstack,$safeeval,undef,1);
3206: $currentstring .= '\vskip '.$howmuch.' ';
3207: }
3208: return $currentstring;
3209: }
3210:
3211: sub end_blankspace {
3212: my ($target,$token) = @_;
3213: my $currentstring = '';
3214: if ($target eq 'tex') {
3215: $currentstring .= '';
3216: }
3217: return $currentstring;
3218: }
3219:
1.181 sakharuk 3220: #-- <abbr> tag (end tag required)
1.122 albertel 3221: sub start_abbr {
3222: my ($target,$token) = @_;
3223: my $currentstring = '';
1.325 albertel 3224: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3225: $currentstring = $token->[4];
3226: }
3227: return $currentstring;
3228: }
3229:
3230: sub end_abbr {
3231: my ($target,$token) = @_;
3232: my $currentstring = '';
1.325 albertel 3233: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3234: $currentstring = $token->[2];
3235: }
3236: return $currentstring;
3237: }
3238:
1.181 sakharuk 3239: #-- <acronym> tag (end tag required)
1.122 albertel 3240: sub start_acronym {
3241: my ($target,$token) = @_;
3242: my $currentstring = '';
1.325 albertel 3243: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3244: $currentstring = $token->[4];
3245: }
3246: return $currentstring;
3247: }
3248:
3249: sub end_acronym {
3250: my ($target,$token) = @_;
3251: my $currentstring = '';
1.325 albertel 3252: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3253: $currentstring = $token->[2];
3254: }
3255: return $currentstring;
3256: }
3257:
1.181 sakharuk 3258: #-- <area> tag (end tag forbidden)
1.122 albertel 3259: sub start_area {
3260: my ($target,$token) = @_;
3261: my $currentstring = '';
1.325 albertel 3262: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3263: $currentstring = $token->[4];
3264: }
3265: return $currentstring;
3266: }
3267:
3268: sub end_area {
3269: my ($target,$token) = @_;
3270: my $currentstring = '';
1.325 albertel 3271: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3272: $currentstring = $token->[2];
3273: }
3274: return $currentstring;
3275: }
3276:
1.181 sakharuk 3277: #-- <base> tag (end tag forbidden)
1.122 albertel 3278: sub start_base {
3279: my ($target,$token) = @_;
3280: my $currentstring = '';
1.325 albertel 3281: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3282: $currentstring = $token->[4];
1.161 sakharuk 3283: }
1.122 albertel 3284: return $currentstring;
3285: }
3286:
3287: sub end_base {
3288: my ($target,$token) = @_;
3289: my $currentstring = '';
1.325 albertel 3290: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3291: $currentstring = $token->[2];
3292: }
3293: return $currentstring;
3294: }
3295:
1.181 sakharuk 3296: #-- <bdo> tag (end tag required)
1.122 albertel 3297: sub start_bdo {
3298: my ($target,$token) = @_;
3299: my $currentstring = '';
1.325 albertel 3300: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3301: $currentstring = $token->[4];
3302: }
3303: return $currentstring;
3304: }
3305:
3306: sub end_bdo {
3307: my ($target,$token) = @_;
3308: my $currentstring = '';
1.325 albertel 3309: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3310: $currentstring = $token->[2];
3311: }
3312: return $currentstring;
3313: }
3314:
1.181 sakharuk 3315: #-- <bgsound> tag (end tag optional)
1.122 albertel 3316: sub start_bgsound {
3317: my ($target,$token) = @_;
3318: my $currentstring = '';
1.325 albertel 3319: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3320: $currentstring = $token->[4];
3321: }
3322: return $currentstring;
3323: }
3324:
3325: sub end_bgsound {
3326: my ($target,$token) = @_;
3327: my $currentstring = '';
1.325 albertel 3328: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3329: $currentstring = $token->[2];
3330: }
3331: return $currentstring;
3332: }
3333:
1.181 sakharuk 3334: #-- <blink> tag (end tag required)
1.122 albertel 3335: sub start_blink {
3336: my ($target,$token) = @_;
3337: my $currentstring = '';
1.325 albertel 3338: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3339: $currentstring = $token->[4];
3340: }
3341: return $currentstring;
3342: }
3343:
3344: sub end_blink {
3345: my ($target,$token) = @_;
3346: my $currentstring = '';
1.325 albertel 3347: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3348: $currentstring = $token->[2];
3349: }
3350: return $currentstring;
3351: }
3352:
1.181 sakharuk 3353: #-- <blockquote> tag (end tag required)
1.122 albertel 3354: sub start_blockquote {
3355: my ($target,$token) = @_;
1.279 foxr 3356: my $currentstring = &end_p(); # Close any unclosed <p>
1.325 albertel 3357: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 3358: $currentstring .= $token->[4];
1.122 albertel 3359: }
3360: return $currentstring;
3361: }
3362:
3363: sub end_blockquote {
3364: my ($target,$token) = @_;
3365: my $currentstring = '';
1.325 albertel 3366: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3367: $currentstring = $token->[2];
3368: }
3369: return $currentstring;
3370: }
3371:
1.181 sakharuk 3372: #-- <button> tag (end tag required)
1.122 albertel 3373: sub start_button {
3374: my ($target,$token) = @_;
3375: my $currentstring = '';
1.325 albertel 3376: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3377: $currentstring = $token->[4];
3378: }
3379: return $currentstring;
3380: }
3381:
3382: sub end_button {
3383: my ($target,$token) = @_;
3384: my $currentstring = '';
1.325 albertel 3385: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3386: $currentstring = $token->[2];
3387: }
3388: return $currentstring;
3389: }
3390:
1.181 sakharuk 3391: #-- <caption> tag (end tag required)
1.122 albertel 3392: sub start_caption {
3393: my ($target,$token) = @_;
3394: my $currentstring = '';
1.325 albertel 3395: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3396: $currentstring = $token->[4];
3397: }
3398: return $currentstring;
3399: }
3400:
3401: sub end_caption {
3402: my ($target,$token) = @_;
3403: my $currentstring = '';
1.325 albertel 3404: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3405: $currentstring = $token->[2];
3406: }
3407: return $currentstring;
3408: }
3409:
1.181 sakharuk 3410: #-- <col> tag (end tag forbdden)
1.122 albertel 3411: sub start_col {
3412: my ($target,$token) = @_;
3413: my $currentstring = '';
1.325 albertel 3414: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3415: $currentstring = $token->[4];
3416: }
3417: return $currentstring;
3418: }
3419:
3420: sub end_col {
3421: my ($target,$token) = @_;
3422: my $currentstring = '';
1.325 albertel 3423: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3424: $currentstring = $token->[2];
3425: }
3426: return $currentstring;
3427: }
3428:
1.181 sakharuk 3429: #-- <colgroup> tag (end tag optional)
1.122 albertel 3430: sub start_colgroup {
3431: my ($target,$token) = @_;
3432: my $currentstring = '';
1.325 albertel 3433: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3434: $currentstring = $token->[4];
3435: }
3436: return $currentstring;
3437: }
3438:
3439: sub end_colgroup {
3440: my ($target,$token) = @_;
3441: my $currentstring = '';
1.325 albertel 3442: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3443: $currentstring = $token->[2];
3444: }
3445: return $currentstring;
3446: }
3447:
1.181 sakharuk 3448: #-- <del> tag (end tag required)
1.122 albertel 3449: sub start_del {
3450: my ($target,$token) = @_;
3451: my $currentstring = '';
1.325 albertel 3452: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3453: $currentstring = $token->[4];
3454: }
3455: return $currentstring;
3456: }
3457:
3458: sub end_del {
3459: my ($target,$token) = @_;
3460: my $currentstring = '';
1.325 albertel 3461: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3462: $currentstring = $token->[2];
3463: }
3464: return $currentstring;
3465: }
3466:
1.181 sakharuk 3467: #-- <fieldset> tag (end tag required)
1.122 albertel 3468: sub start_fieldset {
3469: my ($target,$token) = @_;
3470: my $currentstring = '';
1.325 albertel 3471: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3472: $currentstring = $token->[4];
3473: }
3474: return $currentstring;
3475: }
3476:
3477: sub end_fieldset {
3478: my ($target,$token) = @_;
3479: my $currentstring = '';
1.325 albertel 3480: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3481: $currentstring = $token->[2];
3482: }
3483: return $currentstring;
3484: }
3485:
1.181 sakharuk 3486: #-- <frame> tag (end tag forbidden)
1.122 albertel 3487: sub start_frame {
3488: my ($target,$token) = @_;
3489: my $currentstring = '';
1.325 albertel 3490: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3491: $currentstring = $token->[4];
3492: }
3493: return $currentstring;
3494: }
3495:
3496: sub end_frame {
3497: my ($target,$token) = @_;
3498: my $currentstring = '';
1.325 albertel 3499: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3500: $currentstring = $token->[2];
3501: }
3502: return $currentstring;
3503: }
3504:
1.181 sakharuk 3505: #-- <iframe> tag (end tag required)
1.122 albertel 3506: sub start_iframe {
3507: my ($target,$token) = @_;
3508: my $currentstring = '';
1.325 albertel 3509: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3510: $currentstring = $token->[4];
3511: }
3512: return $currentstring;
3513: }
3514:
3515: sub end_iframe {
3516: my ($target,$token) = @_;
3517: my $currentstring = '';
1.325 albertel 3518: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3519: $currentstring = $token->[2];
3520: }
3521: return $currentstring;
3522: }
3523:
1.181 sakharuk 3524: #-- <ins> tag (end tag required)
1.122 albertel 3525: sub start_ins {
3526: my ($target,$token) = @_;
3527: my $currentstring = '';
1.325 albertel 3528: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3529: $currentstring = $token->[4];
3530: }
3531: return $currentstring;
3532: }
3533:
3534: sub end_ins {
3535: my ($target,$token) = @_;
3536: my $currentstring = '';
1.325 albertel 3537: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3538: $currentstring = $token->[2];
3539: }
3540: return $currentstring;
3541: }
3542:
1.181 sakharuk 3543: #-- <isindex> tag (end tag forbidden)
1.122 albertel 3544: sub start_isindex {
3545: my ($target,$token) = @_;
3546: my $currentstring = '';
1.325 albertel 3547: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3548: $currentstring = $token->[4];
3549: }
3550: return $currentstring;
3551: }
3552:
3553: sub end_isindex {
3554: my ($target,$token) = @_;
3555: my $currentstring = '';
1.325 albertel 3556: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3557: $currentstring = $token->[2];
3558: }
3559: return $currentstring;
3560: }
3561:
1.181 sakharuk 3562: #-- <keygen> tag (end tag forbidden)
1.122 albertel 3563: sub start_keygen {
3564: my ($target,$token) = @_;
3565: my $currentstring = '';
1.325 albertel 3566: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3567: $currentstring = $token->[4];
3568: }
3569: return $currentstring;
3570: }
3571:
3572: sub end_keygen {
3573: my ($target,$token) = @_;
3574: my $currentstring = '';
1.325 albertel 3575: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3576: $currentstring = $token->[2];
3577: }
3578: return $currentstring;
3579: }
3580:
3581: #-- <label> tag
3582: sub start_label {
3583: my ($target,$token) = @_;
3584: my $currentstring = '';
1.325 albertel 3585: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3586: $currentstring = $token->[4];
3587: }
3588: return $currentstring;
3589: }
3590:
3591: sub end_label {
3592: my ($target,$token) = @_;
3593: my $currentstring = '';
1.325 albertel 3594: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3595: $currentstring = $token->[2];
3596: }
3597: return $currentstring;
3598: }
3599:
1.181 sakharuk 3600: #-- <layer> tag (end tag required)
1.122 albertel 3601: sub start_layer {
3602: my ($target,$token) = @_;
3603: my $currentstring = '';
1.325 albertel 3604: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3605: $currentstring = $token->[4];
3606: }
3607: return $currentstring;
3608: }
3609:
3610: sub end_layer {
3611: my ($target,$token) = @_;
3612: my $currentstring = '';
1.325 albertel 3613: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3614: $currentstring = $token->[2];
3615: }
3616: return $currentstring;
3617: }
3618:
1.181 sakharuk 3619: #-- <legend> tag (end tag required)
1.122 albertel 3620: sub start_legend {
3621: my ($target,$token) = @_;
3622: my $currentstring = '';
1.325 albertel 3623: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3624: $currentstring = $token->[4];
3625: }
3626: return $currentstring;
3627: }
3628:
3629: sub end_legend {
3630: my ($target,$token) = @_;
3631: my $currentstring = '';
1.325 albertel 3632: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3633: $currentstring = $token->[2];
3634: }
3635: return $currentstring;
3636: }
3637:
1.181 sakharuk 3638: #-- <link> tag (end tag forbidden)
1.122 albertel 3639: sub start_link {
1.292 albertel 3640: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 3641: my $currentstring = '';
1.324 albertel 3642: if ($target eq 'web' || $target eq 'webgrade') {
1.291 albertel 3643: my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
3644: undef,1);
3645: &Apache::lonxml::extlink($href);
1.122 albertel 3646: $currentstring = $token->[4];
3647: }
3648: return $currentstring;
3649: }
3650:
3651: sub end_link {
3652: my ($target,$token) = @_;
3653: my $currentstring = '';
1.325 albertel 3654: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3655: $currentstring = $token->[2];
3656: }
3657: return $currentstring;
3658: }
3659:
1.181 sakharuk 3660: #-- <marquee> tag (end tag optional)
1.122 albertel 3661: sub start_marquee {
3662: my ($target,$token) = @_;
3663: my $currentstring = '';
1.325 albertel 3664: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3665: $currentstring = $token->[4];
3666: }
3667: return $currentstring;
3668: }
3669:
3670: sub end_marquee {
3671: my ($target,$token) = @_;
3672: my $currentstring = '';
1.325 albertel 3673: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3674: $currentstring = $token->[2];
3675: }
3676: return $currentstring;
3677: }
3678:
1.179 sakharuk 3679: #-- <multicol> tag (end tag required)
3680: sub start_multicol {
1.122 albertel 3681: my ($target,$token) = @_;
1.279 foxr 3682: my $currentstring = &end_p(); # Close any pending <p>
1.325 albertel 3683: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 3684: $currentstring .= $token->[4];
1.122 albertel 3685: }
3686: return $currentstring;
3687: }
3688:
1.179 sakharuk 3689: sub end_multicol {
1.122 albertel 3690: my ($target,$token) = @_;
3691: my $currentstring = '';
1.325 albertel 3692: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3693: $currentstring = $token->[2];
3694: }
3695: return $currentstring;
3696: }
3697:
1.179 sakharuk 3698: #-- <nobr> tag (end tag required)
1.122 albertel 3699: sub start_nobr {
3700: my ($target,$token) = @_;
3701: my $currentstring = '';
1.325 albertel 3702: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3703: $currentstring = $token->[4];
1.179 sakharuk 3704: } elsif ($target eq 'tex') {
3705: $currentstring='\mbox{';
3706: }
1.122 albertel 3707: return $currentstring;
3708: }
3709:
3710: sub end_nobr {
3711: my ($target,$token) = @_;
3712: my $currentstring = '';
1.325 albertel 3713: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3714: $currentstring = $token->[2];
1.179 sakharuk 3715: } elsif ($target eq 'tex') {
3716: $currentstring='}';
3717: }
1.122 albertel 3718: return $currentstring;
3719: }
3720:
1.179 sakharuk 3721: #-- <noembed> tag (end tag required)
1.122 albertel 3722: sub start_noembed {
3723: my ($target,$token) = @_;
3724: my $currentstring = '';
1.325 albertel 3725: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3726: $currentstring = $token->[4];
3727: }
3728: return $currentstring;
3729: }
3730:
3731: sub end_noembed {
3732: my ($target,$token) = @_;
3733: my $currentstring = '';
1.325 albertel 3734: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3735: $currentstring = $token->[2];
3736: }
3737: return $currentstring;
3738: }
3739:
1.179 sakharuk 3740: #-- <noframes> tag (end tag required)
1.122 albertel 3741: sub start_noframes {
3742: my ($target,$token) = @_;
3743: my $currentstring = '';
1.325 albertel 3744: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3745: $currentstring = $token->[4];
3746: }
3747: return $currentstring;
3748: }
3749:
3750: sub end_noframes {
3751: my ($target,$token) = @_;
3752: my $currentstring = '';
1.325 albertel 3753: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3754: $currentstring = $token->[2];
3755: }
3756: return $currentstring;
3757: }
3758:
1.179 sakharuk 3759: #-- <nolayer> tag (end tag required)
1.122 albertel 3760: sub start_nolayer {
3761: my ($target,$token) = @_;
3762: my $currentstring = '';
1.325 albertel 3763: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3764: $currentstring = $token->[4];
3765: }
3766: return $currentstring;
3767: }
3768:
3769: sub end_nolayer {
3770: my ($target,$token) = @_;
3771: my $currentstring = '';
1.325 albertel 3772: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3773: $currentstring = $token->[2];
3774: }
3775: return $currentstring;
3776: }
3777:
1.179 sakharuk 3778: #-- <noscript> tag (end tag required)
1.122 albertel 3779: sub start_noscript {
3780: my ($target,$token) = @_;
3781: my $currentstring = '';
1.325 albertel 3782: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3783: $currentstring = $token->[4];
3784: }
3785: return $currentstring;
3786: }
3787:
3788: sub end_noscript {
3789: my ($target,$token) = @_;
3790: my $currentstring = '';
1.325 albertel 3791: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3792: $currentstring = $token->[2];
3793: }
3794: return $currentstring;
3795: }
3796:
1.179 sakharuk 3797: #-- <object> tag (end tag required)
1.122 albertel 3798: sub start_object {
3799: my ($target,$token) = @_;
3800: my $currentstring = '';
1.325 albertel 3801: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3802: $currentstring = $token->[4];
3803: }
3804: return $currentstring;
3805: }
3806:
3807: sub end_object {
3808: my ($target,$token) = @_;
3809: my $currentstring = '';
1.325 albertel 3810: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3811: $currentstring = $token->[2];
3812: }
3813: return $currentstring;
3814: }
3815:
1.179 sakharuk 3816: #-- <optgroup> tag (end tag required)
1.122 albertel 3817: sub start_optgroup {
3818: my ($target,$token) = @_;
3819: my $currentstring = '';
1.325 albertel 3820: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3821: $currentstring = $token->[4];
3822: }
3823: return $currentstring;
3824: }
3825:
3826: sub end_optgroup {
3827: my ($target,$token) = @_;
3828: my $currentstring = '';
1.325 albertel 3829: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3830: $currentstring = $token->[2];
3831: }
3832: return $currentstring;
3833: }
3834:
1.179 sakharuk 3835: #-- <samp> tag (end tag required)
1.122 albertel 3836: sub start_samp {
3837: my ($target,$token) = @_;
3838: my $currentstring = '';
1.325 albertel 3839: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3840: $currentstring = $token->[4];
1.179 sakharuk 3841: } elsif ($target eq 'tex') {
3842: $currentstring='\texttt{';
3843: }
1.122 albertel 3844: return $currentstring;
3845: }
3846:
3847: sub end_samp {
3848: my ($target,$token) = @_;
3849: my $currentstring = '';
1.325 albertel 3850: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3851: $currentstring = $token->[2];
1.179 sakharuk 3852: } elsif ($target eq 'tex') {
3853: $currentstring='}';
3854: }
1.122 albertel 3855: return $currentstring;
3856: }
3857:
3858: #-- <server> tag
3859: sub start_server {
3860: my ($target,$token) = @_;
3861: my $currentstring = '';
1.325 albertel 3862: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3863: $currentstring = $token->[4];
3864: }
3865: return $currentstring;
3866: }
3867:
3868: sub end_server {
3869: my ($target,$token) = @_;
3870: my $currentstring = '';
1.325 albertel 3871: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3872: $currentstring = $token->[2];
3873: }
3874: return $currentstring;
3875: }
3876:
1.179 sakharuk 3877: #-- <spacer> tag (end tag forbidden)
1.122 albertel 3878: sub start_spacer {
3879: my ($target,$token) = @_;
1.279 foxr 3880: my $currentstring = &end_p(); # Close off any open <p> tag.
1.325 albertel 3881: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 3882: $currentstring .= $token->[4];
1.122 albertel 3883: }
3884: return $currentstring;
3885: }
3886:
3887: sub end_spacer {
3888: my ($target,$token) = @_;
3889: my $currentstring = '';
1.325 albertel 3890: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3891: $currentstring = $token->[2];
3892: }
3893: return $currentstring;
3894: }
3895:
1.179 sakharuk 3896: #-- <span> tag (end tag required)
1.122 albertel 3897: sub start_span {
3898: my ($target,$token) = @_;
3899: my $currentstring = '';
1.325 albertel 3900: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3901: $currentstring = $token->[4];
3902: }
3903: return $currentstring;
3904: }
3905:
3906: sub end_span {
3907: my ($target,$token) = @_;
3908: my $currentstring = '';
1.325 albertel 3909: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3910: $currentstring = $token->[2];
3911: }
3912: return $currentstring;
3913: }
3914:
1.179 sakharuk 3915: #-- <tbody> tag (end tag optional)
1.122 albertel 3916: sub start_tbody {
3917: my ($target,$token) = @_;
3918: my $currentstring = '';
1.325 albertel 3919: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3920: $currentstring = $token->[4];
3921: }
3922: return $currentstring;
3923: }
3924:
3925: sub end_tbody {
3926: my ($target,$token) = @_;
3927: my $currentstring = '';
1.325 albertel 3928: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3929: $currentstring = $token->[2];
3930: }
3931: return $currentstring;
3932: }
3933:
1.166 sakharuk 3934: #-- <tfoot> tag (end tag optional)
1.122 albertel 3935: sub start_tfoot {
3936: my ($target,$token) = @_;
3937: my $currentstring = '';
1.325 albertel 3938: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3939: $currentstring = $token->[4];
3940: }
3941: return $currentstring;
3942: }
3943:
3944: sub end_tfoot {
3945: my ($target,$token) = @_;
3946: my $currentstring = '';
1.325 albertel 3947: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3948: $currentstring = $token->[2];
3949: }
3950: return $currentstring;
3951: }
3952:
1.166 sakharuk 3953: #-- <thead> tag (end tag optional)
1.122 albertel 3954: sub start_thead {
3955: my ($target,$token) = @_;
3956: my $currentstring = '';
1.325 albertel 3957: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3958: $currentstring = $token->[4];
3959: }
3960: return $currentstring;
3961: }
1.10 www 3962:
1.122 albertel 3963: sub end_thead {
3964: my ($target,$token) = @_;
3965: my $currentstring = '';
1.325 albertel 3966: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3967: $currentstring = $token->[2];
3968: }
3969: return $currentstring;
3970: }
1.119 www 3971:
1.122 albertel 3972: #-- <var> tag
3973: sub start_var {
1.44 sakharuk 3974: my ($target,$token) = @_;
3975: my $currentstring = '';
1.325 albertel 3976: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3977: $currentstring = $token->[4];
1.163 sakharuk 3978: } elsif ($target eq 'tex') {
3979: $currentstring = '\textit{';
3980: }
1.44 sakharuk 3981: return $currentstring;
3982: }
1.10 www 3983:
1.122 albertel 3984: sub end_var {
3985: my ($target,$token) = @_;
1.44 sakharuk 3986: my $currentstring = '';
1.325 albertel 3987: if ($target eq 'web' || $target eq 'webgrade') {
1.163 sakharuk 3988: $currentstring = $token->[2];
3989: } elsif ($target eq 'tex') {
3990: $currentstring = '}';
1.44 sakharuk 3991: }
3992: return $currentstring;
3993: }
1.119 www 3994:
1.163 sakharuk 3995: #-- <wbr> tag (end tag forbidden)
1.122 albertel 3996: sub start_wbr {
3997: my ($target,$token) = @_;
3998: my $currentstring = '';
1.325 albertel 3999: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4000: $currentstring = $token->[4];
4001: }
4002: return $currentstring;
1.98 albertel 4003: }
4004:
1.122 albertel 4005: sub end_wbr {
4006: my ($target,$token) = @_;
4007: my $currentstring = '';
1.325 albertel 4008: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4009: $currentstring = $token->[2];
4010: }
4011: return $currentstring;
1.98 albertel 4012: }
1.134 sakharuk 4013:
4014: #-- <hideweboutput> tag
4015: sub start_hideweboutput {
4016: my ($target,$token) = @_;
1.325 albertel 4017: if ($target eq 'web' || $target eq 'webgrade') {
1.134 sakharuk 4018: &Apache::lonxml::startredirection();
4019: }
4020: return '';
4021: }
4022:
4023: sub end_hideweboutput {
4024: my ($target,$token) = @_;
4025: my $currentstring = '';
1.325 albertel 4026: if ($target eq 'web' || $target eq 'webgrade') {
1.134 sakharuk 4027: $currentstring = &Apache::lonxml::endredirection();
4028: }
4029: return '';
4030: }
4031:
1.94 sakharuk 4032:
4033: sub image_replication {
4034: my $src = shift;
1.187 albertel 4035: if (not -e $src) { &Apache::lonnet::repcopy($src); }
4036: #replicates eps or ps
4037: my $epssrc = my $pssrc = $src;
4038: $epssrc =~ s/\.(gif|jpg|jpeg|png)$/.eps/i;
4039: $pssrc =~ s/\.(gif|jpg|jpeg|png)$/.ps/i;
4040: if (not -e $epssrc && not -e $pssrc) {
4041: my $result=&Apache::lonnet::repcopy($epssrc);
1.264 raeburn 4042: if ($result ne 'ok') { &Apache::lonnet::repcopy($pssrc); }
1.94 sakharuk 4043: }
4044: return '';
1.195 sakharuk 4045: }
1.275 foxr 4046: #
4047: # Get correct sizing parameter for an image given
4048: # it's initial ht. and wid. This allows sizing of
4049: # images that are generated on-the-fly (e.g. gnuplot)
4050: # as well as serving as a utility for image_size.
4051: #
4052: # Parameter:
4053: # height_param
4054: # width_param - Initial picture dimensions.
4055: # scaling - A scale factor.
4056: # parstack, - the current stack of tag attributes
4057: # from the xml parser
4058: # safeeval, - pointer to the safespace
4059: # depth, - from what level in the stack to look for attributes
4060: # (assumes -1 if unspecified)
4061: # cis - look for attrubutes case insensitively
4062: # (assumes false)
4063: #
4064: # Returns:
4065: # height, width - new dimensions.
4066: #
4067: sub resize_image {
4068: my ($height_param, $width_param, $scaling,
4069: $parstack, $safeeval, $depth, $cis) = @_;
4070:
4071: # First apply the scaling...
1.271 foxr 4072:
1.275 foxr 4073: $height_param = $height_param * $scaling;
4074: $width_param = $width_param * $scaling;
1.261 foxr 4075:
1.197 sakharuk 4076: #do we have any specified LaTeX size of the picture?
1.261 foxr 4077: my $toget='TeXwidth';
4078: if ($cis) {
4079: $toget=lc($toget);
4080: }
1.256 albertel 4081: my $TeXwidth = &Apache::lonxml::get_param($toget,$parstack,
4082: $safeeval,$depth,$cis);
4083: $toget='TeXheight'; if ($cis) { $toget=lc($toget); }
4084: my $TeXheight = &Apache::lonxml::get_param($toget,$parstack,
4085: $safeeval,$depth,$cis);
1.197 sakharuk 4086: #do we have any specified web size of the picture?
4087: my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval,
1.256 albertel 4088: $depth,1);
4089: if ($TeXwidth) {
1.252 matthew 4090: my $old_width_param=$width_param;
1.197 sakharuk 4091: if ($TeXwidth=~/(\d+)\s*\%/) {
1.267 albertel 4092: $width_param = $1*$env{'form.textwidth'}/100;
1.197 sakharuk 4093: } else {
4094: $width_param = $TeXwidth;
4095: }
1.266 albertel 4096: if ($TeXheight) {
4097: $height_param = $TeXheight;
4098: } elsif ($old_width_param) {
4099: $height_param=$TeXwidth/$old_width_param*$height_param;
4100: }
1.256 albertel 4101: } elsif ($TeXheight) {
1.248 foxr 4102: $height_param = $TeXheight;
1.266 albertel 4103: if ($height_param) {
4104: $width_param = $TeXheight/$height_param*$width_param;
4105: }
1.256 albertel 4106: } elsif ($width) {
1.252 matthew 4107: my $old_width_param=$width_param;
1.256 albertel 4108: $width_param = $width*$scaling;
1.266 albertel 4109: if ($old_width_param) {
4110: $height_param=$width_param/$old_width_param*$height_param;
4111: }
1.252 matthew 4112: }
1.267 albertel 4113: if ($width_param > $env{'form.textwidth'}) {
1.252 matthew 4114: my $old_width_param=$width_param;
1.267 albertel 4115: $width_param =0.95*$env{'form.textwidth'};
1.266 albertel 4116: if ($old_width_param) {
4117: $height_param=$width_param/$old_width_param*$height_param;
4118: }
1.197 sakharuk 4119: }
1.275 foxr 4120:
4121: return ($height_param, $width_param);
4122: }
4123:
4124: sub image_size {
4125: my ($src,$scaling,$parstack,$safeeval,$depth,$cis)=@_;
4126:
4127: #size of image from gif/jpg/jpeg/png
4128: my $ressrc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
4129: if (-e $ressrc) {
4130: $src = $ressrc;
4131: }
4132: my $image = Image::Magick->new;
4133: my $current_figure = $image->Read($src);
4134: my $width_param = $image->Get('width');
4135: my $height_param = $image->Get('height');
4136: &Apache::lonxml::debug("Image magick says: $src : Height = $height_param width = $width_param");
4137: undef($image);
4138:
4139: ($height_param, $width_param) = &resize_image($height_param, $width_param,
4140: $scaling, $parstack, $safeeval,
4141: $depth, $cis);
4142:
1.248 foxr 4143: return ($height_param, $width_param);
4144: }
4145:
4146: sub image_width {
4147: my ($height, $width) = &image_size(@_);
4148: return $width;
4149: }
4150: # Not yet 100% sure this is correct in all circumstances..
4151: # due to my uncertainty about mods to image_size.
4152: #
4153: sub image_height {
4154: my ($height, $width) = &image_size(@_);
4155: return $height;
1.197 sakharuk 4156: }
4157:
1.256 albertel 4158: sub get_eps_image {
4159: my ($src)=@_;
1.261 foxr 4160: my $orig_src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1], $src);
1.285 foxr 4161:
4162: # In order to prevent the substitution of the alt text, we need to
4163: # be sure the orig_src file is on system now so:
4164:
4165: if (! -e $orig_src) {
4166: &Apache::lonnet::repcopy($orig_src); # Failure is not completely fatal.
4167: }
1.275 foxr 4168: &Apache::lonxml::debug("get_eps_image: Original image: $orig_src");
1.282 foxr 4169: my ($spath, $sname, $sext) = fileparse($src, qr/\.(gif|png|jpg|jpeg)/i);
1.256 albertel 4170: $src=~s/\.(gif|png|jpg|jpeg)$/\.eps/i;
4171: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.275 foxr 4172: &Apache::lonxml::debug("Filelocation gives: $src");
1.256 albertel 4173: if (! -e $src) {
1.261 foxr 4174: &Apache::lonxml::debug("$src does not exist");
1.264 raeburn 4175: if (&Apache::lonnet::repcopy($src) ne 'ok' ) {
1.261 foxr 4176: &Apache::lonxml::debug("Repcopy of $src failed (1)");
1.256 albertel 4177: #if replication failed try to find ps file
4178: $src=~s/\.eps$/\.ps/;
1.261 foxr 4179: &Apache::lonxml::debug("Now looking for $src");
1.270 foxr 4180: #if no ps file try to replicate it.
4181: my $didrepcopy = &Apache::lonnet::repcopy($src);
4182: &Apache::lonxml::debug("repcopy of $src ... $didrepcopy");
4183: if ( (not -e $src) ||
4184: ($didrepcopy ne 'ok')) {
1.261 foxr 4185: &Apache::lonxml::debug("Failed to find or replicate $src");
4186:
1.256 albertel 4187: #if replication failed try to produce eps file dynamically
4188: $src=~s/\.ps$/\.eps/;
4189: my $temp_file;
1.267 albertel 4190: open(FILE,">>/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat");
1.256 albertel 4191: my $newsrc=$orig_src;
4192: $newsrc =~ s|(.*)/res/|/home/httpd/html/res/|;
1.275 foxr 4193: &Apache::lonxml::debug("queueing $newsrc for dynamic eps production.");
1.256 albertel 4194: print FILE "$newsrc\n";
1.261 foxr 4195: close FILE;
1.256 albertel 4196: $src=~s|/home/httpd/html/res|/home/httpd/prtspool|;
4197: $src=~s|/home/([^/]*)/public_html/|/home/httpd/prtspool/$1/|;
1.283 albertel 4198: if ($sext ne "") { # Put the ext. back in to uniquify.
4199: $src =~ s/\.eps$/$sext.eps/;
4200: }
1.256 albertel 4201: }
4202: }
4203: }
4204: my ($path,$file)=($src=~m|(.*)/([^/]*)$|);
1.261 foxr 4205: &Apache::lonxml::debug("get_eps_image returning: $path / $file<BR />");
1.256 albertel 4206: return ($path.'/',$file);
4207: }
4208:
1.195 sakharuk 4209: sub eps_generation {
4210: my ($src,$file,$width_param) = @_;
1.267 albertel 4211: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat";
1.195 sakharuk 4212: my $temp_file = Apache::File->new('>>'.$filename);
4213: print $temp_file "$src\n";
4214: my $newsrc = $src;
4215: $newsrc =~ s/(\.gif|\.jpg|\.jpeg)$/\.eps/i;
4216: $newsrc=~s/\/home\/httpd\/html\/res//;
4217: $newsrc=~s/\/home\/([^\/]*)\/public_html\//\/$1\//;
4218: $newsrc=~s/\/\.\//\//;
4219: $newsrc=~s/\/([^\/]+)\.(ps|eps)/\//;
1.213 sakharuk 4220: if ($newsrc=~/\/home\/httpd\/lonUsers\//) {
4221: $newsrc=~s/\/home\/httpd\/lonUsers//;
4222: $newsrc=~s/\/([^\/]+)\/(\w)\/(\w)\/(\w)\//\/$1\//;
4223: }
1.239 sakharuk 4224: if ($newsrc=~/\/userfiles\//) {
4225: return ' \graphicspath{{'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4226: } else {
4227: return ' \graphicspath{{/home/httpd/prtspool'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4228: }
1.197 sakharuk 4229: }
4230:
4231: sub file_path {
4232: my $src=shift;
4233: my ($file,$path);
4234: if ($src =~ m!(.*)/([^/]*)$!) {
4235: $file = $2;
4236: $path = $1.'/';
4237: }
4238: return $file,$path;
1.126 sakharuk 4239: }
1.294 foxr 4240: # Converts a measurement in to mm from any of
4241: # the other valid LaTeX units of measure.
4242: # If the units of measure are missing from the
4243: # parameter, it is assumed to be in and returned
4244: # with mm units of measure
1.126 sakharuk 4245: sub recalc {
4246: my $argument = shift;
4247: if (not $argument=~/(mm|cm|in|pc|pt)/) {return $argument.' mm';}
1.132 sakharuk 4248: $argument=~/\s*(\d+\.?\d*)\s*(mm|cm|in|pc|pt)/;
1.126 sakharuk 4249: my $value=$1;
4250: my $units=$2;
4251: if ($units eq 'cm') {
4252: $value*=10;
4253: } elsif ($units eq 'in') {
4254: $value*=25.4;
4255: } elsif ($units eq 'pc') {
4256: $value*=(25.4*12/72.27);
4257: } elsif ($units eq 'pt') {
4258: $value*=(25.4/72.27);
4259: }
4260: return $value.' mm';
1.94 sakharuk 4261: }
1.184 sakharuk 4262:
4263: sub LATEX_length {
4264: my $garbage=shift;
1.206 sakharuk 4265: $garbage=~s/^\s+$//;
4266: $garbage=~s/^\s+(\S.*)/$1/;#space before
4267: $garbage=~s/(.*\S)\s+$/$1/;#space after
4268: $garbage=~s/(\s)+/$1/;#only one space
4269: $garbage=~s/(\\begin{([^\}]+)}|\\end{([^\}]+)})//g;#remove LaTeX \begin{...} and \end{...}
4270: $garbage=~s/(\$\_\{|\$\_|\$\^{|\$\^|\}\$)//g;#remove $_{,$_,$^{,$^,}$
4271: $garbage=~s/([^\\])\$/$1/g;#$
4272: $garbage=~s/(\\ensuremath\{\_\{|\\ensuremath\{\_|\\ensuremath\{\^{|\\ensuremath\{\^|\})//g;#remove \ensuremath{...}
4273: $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 4274: $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;
4275: $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;
4276: $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 4277: $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;
4278: $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;
4279: $garbage=~s/(\\hat{([^}]+)}|\\check{([^}]+)}|\\dot{([^}]+)}|\\breve{([^}]+)}|\\acute{([^}]+)}|\\ddot{([^}]+)}|\\grave{([^}]+)}|\\tilde{([^}]+)}|\\mathring{([^}]+)}|\\bar{([^}]+)}|\\vec{([^}]+)})/$1/g;
4280: #remove some other LaTeX command
4281: $garbage=~s|\\(\w+)\\|\\|g;
4282: $garbage=~s|\\(\w+)(\s*)|$2|g;
4283: $garbage=~s|\+|11|g;
1.184 sakharuk 4284: my $value=length($garbage);
4285: return $value;
4286: }
4287:
4288:
1.287 foxr 4289: # is_inside_of $tagstack $tag
4290: # This sub returns true if the current state of Xml processing
4291: # is inside of the tag.
4292: # Parameters:
4293: # tagstack - The tagstack from the parser.
4294: # tag - The tag (without the <>'s.).
4295: # Sample usage:
4296: # if (is_inside_of($tagstack "table")) {
4297: # # I'm in a table....
4298: # }
4299: sub is_inside_of {
4300: my ($tagstack, $tag) = @_;
4301: my @stack = @$tagstack;
4302: for (my $i = ($#stack - 1); $i >= 0; $i--) {
4303: if ($stack[$i] eq $tag) {
4304: return 1;
4305: }
4306: }
4307: return 0;
4308: }
1.184 sakharuk 4309:
1.94 sakharuk 4310:
1.1 sakharuk 4311: 1;
4312: __END__
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