Annotation of loncom/xml/londefdef.pm, revision 1.338
1.1 sakharuk 1: # The LearningOnline Network with CAPA
2: # Tags Default Definition Module
3: #
1.338 ! foxr 4: # $Id: londefdef.pm,v 1.337 2006/09/19 10:57:11 foxr Exp $
1.41 sakharuk 5: #
1.34 www 6: #
7: # Copyright Michigan State University Board of Trustees
8: #
9: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
10: #
11: # LON-CAPA is free software; you can redistribute it and/or modify
12: # it under the terms of the GNU General Public License as published by
13: # the Free Software Foundation; either version 2 of the License, or
14: # (at your option) any later version.
15: #
16: # LON-CAPA is distributed in the hope that it will be useful,
17: # but WITHOUT ANY WARRANTY; without even the implied warranty of
18: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19: # GNU General Public License for more details.
20: #
21: # You should have received a copy of the GNU General Public License
22: # along with LON-CAPA; if not, write to the Free Software
23: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24: #
25: # /home/httpd/html/adm/gpl.txt
26: #
27: # http://www.lon-capa.org/
1.156 sakharuk 28: ## Copyright for TtHfunc and TtMfunc by Ian Hutchinson.
1.34 www 29: # TtHfunc and TtMfunc (the "Code") may be compiled and linked into
30: # binary executable programs or libraries distributed by the
31: # Michigan State University (the "Licensee"), but any binaries so
32: # distributed are hereby licensed only for use in the context
33: # of a program or computational system for which the Licensee is the
34: # primary author or distributor, and which performs substantial
35: # additional tasks beyond the translation of (La)TeX into HTML.
36: # The C source of the Code may not be distributed by the Licensee
37: # to any other parties under any circumstances.
38: #
1.1 sakharuk 39:
1.2 albertel 40: package Apache::londefdef;
1.1 sakharuk 41:
1.267 albertel 42: use Apache::lonnet;
1.1 sakharuk 43: use strict;
1.124 sakharuk 44: use Apache::lonxml;
1.57 sakharuk 45: use Apache::File();
1.70 sakharuk 46: use Image::Magick;
1.118 www 47: use Apache::lonmenu();
48: use Apache::lonmeta();
1.187 albertel 49: use Apache::Constants qw(:common);
1.282 foxr 50: use File::Basename;
1.302 foxr 51: # use Data::Dumper;
1.160 sakharuk 52:
1.38 harris41 53: BEGIN {
1.15 sakharuk 54:
1.135 sakharuk 55: &Apache::lonxml::register('Apache::londefdef',('a','abbr','acronym','accessrule','address','allow','applet','area','b','base','basefont','bgo','bgsound','big','blink','blockquote','blankspace','body','br','button','caption','center','cite','code','col','colgroup','dd','del','dfn','dir','div','dl','dt','em','embed','externallink','fieldset','font','form','frame','frameset','h1','h2','h3','h4','h5','h6','head','hr','html','i','iframe','img','input','ins','insert','isindex','kbd','keygen','label','layer','legend','li','link','m','map','marquee','menu','meta','multicol','nobr','noembed','noframes','nolayer','noscript','object','ol','optgroup','option','output','p','param','pre','q','s','samp','select','server','small','spacer','span','strike','strong','sub','sup','table','tbody','td','textarea','tfoot','th','thead','title','tr','tt','tthoption','u','ul','var','wbr','hideweboutput'));
1.15 sakharuk 56:
1.188 albertel 57: }
58:
1.294 foxr 59: #
60: # Dumps all elements of the table structure.
61: # Need this 'cause evidently when given an array, Data::Dumper only seems
62: # to dump element 0.
63: #
1.302 foxr 64: #sub debug_dump_table {
65: # my $lastrow = $#Apache::londefdef::table;
66: # &Apache::lonnet::logthis("Dumping table: Last row index: $lastrow");
67: # my $row;
68: # for ($row =0; $row <= $lastrow; $row++ ) {
69: # my $text = Dumper($Apache::londefdef::table[$row]);
70: # &Apache::lonnet::logthis("table [ $row ]".$text);
71: # }
72: #}
1.188 albertel 73: sub initialize_londefdef {
74: $Apache::londefdef::TD_redirection=0;
75: @Apache::londefdef::table = ();
76: $Apache::londefdef::select=0;
1.243 albertel 77: undef(@Apache::londefdef::description);
78: @Apache::londefdef::DD=(0);
79: @Apache::londefdef::DT=(0);
1.244 albertel 80: @Apache::londefdef::seenDT=(0);
1.238 albertel 81: $Apache::londefdef::list_index=0;
1.327 albertel 82: undef($Apache::londefdef::head);
83: undef($Apache::londefdef::title);
1.3 sakharuk 84: }
1.1 sakharuk 85:
1.35 sakharuk 86: #======================= TAG SUBROUTINES =====================
1.8 sakharuk 87: #-- <output>
1.21 albertel 88: sub start_output {
1.122 albertel 89: my ($target) = @_;
90: if ($target eq 'meta') { $Apache::lonxml::metamode--; }
91: return '';
1.21 albertel 92: }
93: sub end_output {
1.122 albertel 94: my ($target) = @_;
95: if ($target eq 'meta') { $Apache::lonxml::metamode++; }
96: return '';
1.21 albertel 97: }
1.4 sakharuk 98: #-- <m> tag
1.33 albertel 99: sub start_m {
1.190 albertel 100: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 101: my $currentstring = '';
1.193 albertel 102: my $inside = &Apache::lonxml::get_all_text_unbalanced("/m",$parser);
1.191 albertel 103: if ($target eq 'web' || $target eq 'analyze') {
1.122 albertel 104: &Apache::lonxml::debug("M is starting with:$inside:");
105: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
106: if ($eval eq 'on') {
107: $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
108: #&Apache::lonxml::debug("M is evaulated to:$inside:");
109: }
1.317 albertel 110: my $tex = $inside;
1.276 albertel 111: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
112: $currentstring = &Apache::lontexconvert::converted(\$inside,$display);
1.122 albertel 113: if ($Apache::lontexconvert::errorstring) {
1.317 albertel 114: my $errormsg='<pre>'.&HTML::Entities::encode($Apache::lontexconvert::errorstring,'<>&"').'</pre> occured while attempting to convert this TeX: <pre>';
115: $tex = &HTML::Entities::encode($tex,'<>&"');
116: my ($linenumber) =
117: ($Apache::lontexconvert::errorstring =~ /Line (\d+)/);
118: if (defined($linenumber)) {
119: my @tex=split("\n",$tex);
120: $tex[$linenumber]='<b><font color="red">'.
121: $tex[$linenumber].'</font></b>';
122: $tex=join("\n",@tex);
123: }
124: &Apache::lonxml::warning($errormsg.$tex.'</pre>');
1.122 albertel 125: $Apache::lontexconvert::errorstring='';
126: }
127: #&Apache::lonxml::debug("M is ends with:$currentstring:");
1.178 albertel 128: $Apache::lonxml::post_evaluate=0;
1.122 albertel 129: } elsif ($target eq 'tex') {
1.190 albertel 130: $currentstring = $inside;
1.178 albertel 131: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
132: if ($eval eq 'on') {
133: $currentstring=&Apache::run::evaluate($currentstring,$safeeval,$$parstack[-1]);
134: }
1.122 albertel 135: if ($currentstring=~/^(\s*\\\\\s*)*$/) {$currentstring = ' \vskip 0 mm ';}
1.257 albertel 136: # detect simple math mode entry exits, and convert them
137: # to use \ensuremath
138: if ($currentstring=~/^\s*\$[^\$].*[^\$]\$\s*$/) {
1.293 albertel 139: $currentstring=~s/^(\s*)\$/$1/;
140: $currentstring=~s/\$(\s*)$/$1/;
1.257 albertel 141: $currentstring='\ensuremath{'.$currentstring.'}';
142: }
1.178 albertel 143: $Apache::lonxml::post_evaluate=0;
1.122 albertel 144: }
145: return $currentstring;
1.33 albertel 146: }
1.122 albertel 147:
1.33 albertel 148: sub end_m {
1.122 albertel 149: my ($target,$token) = @_;
150: my $currentstring = '';
1.204 albertel 151: if ($target eq 'tex') {
1.122 albertel 152: $currentstring = "";
153: }
154: return $currentstring;
1.33 albertel 155: }
1.110 albertel 156:
157: sub start_tthoption {
1.299 albertel 158: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 159: my $result;
1.325 albertel 160: if ($target eq 'web' || $target eq 'webgrade') {
1.299 albertel 161: my $inside = &Apache::lonxml::get_all_text("/tthoption",$parser,
162: $style);
1.122 albertel 163: $inside=~s/^\s*//;
1.267 albertel 164: if ($env{'browser.mathml'}) {
1.122 albertel 165: &tth::ttmoptions($inside);
166: } else {
167: &tth::tthoptions($inside);
168: }
169: }
170: return $result;
1.110 albertel 171: }
172:
173: sub end_tthoption {
1.122 albertel 174: my ($target,$token) = @_;
175: my $result;
176: return $result;
1.110 albertel 177: }
178:
1.181 sakharuk 179: #-- <html> tag (end tag optional)
1.100 albertel 180: sub start_html {
181: my ($target,$token) = @_;
182: my $currentstring = '';
1.269 albertel 183: if ($target eq 'web' || $target eq 'edit' || $target eq 'webgrade' ) {
1.327 albertel 184: # start_body() takes care of emitting the <html>
1.100 albertel 185: } elsif ($target eq 'tex') {
1.331 albertel 186: $currentstring .=
187: '\documentclass[letterpaper,twoside]{article}\raggedbottom';
1.267 albertel 188: if (($env{'form.latex_type'}=~'batchmode') ||
189: (!$env{'request.role.adv'})) {$currentstring .='\batchmode';}
1.217 sakharuk 190: $currentstring .= '\newcommand{\keephidden}[1]{}'.
191: '\renewcommand{\deg}{$^{\circ}$}'.
1.306 foxr 192: '\usepackage{multirow}'.
1.217 sakharuk 193: '\usepackage{longtable}'.
194: '\usepackage{textcomp}'.
195: '\usepackage{makeidx}'.
196: '\usepackage[dvips]{graphicx}'.
1.286 foxr 197: '\usepackage{wrapfig}'.
1.248 foxr 198: '\usepackage{picins}'.
1.217 sakharuk 199: '\usepackage{epsfig}'.
200: '\usepackage{calc}'.
201: '\usepackage{amsmath}'.
202: '\usepackage{amssymb}'.
203: '\usepackage{amsfonts}'.
204: '\usepackage{amsthm}'.
205: '\usepackage{amscd}'.
206: '\newenvironment{choicelist}{\begin{list}{}{\setlength{\rightmargin}{0in}\setlength{\leftmargin}{0.13in}\setlength{\topsep}{0.05in}\setlength{\itemsep}{0.022in}\setlength{\parsep}{0in}\setlength{\belowdisplayskip}{0.04in}\setlength{\abovedisplayskip}{0.05in}\setlength{\abovedisplayshortskip}{-0.04in}\setlength{\belowdisplayshortskip}{0.04in}}}{\end{list}}'.
207: '\renewenvironment{theindex}{\begin{list}{}{{\vskip 1mm \noindent \large\textbf{Index}} \newline \setlength{\rightmargin}{0in}\setlength{\leftmargin}{0.13in}\setlength{\topsep}{0.01in}\setlength{\itemsep}{0.1in}\setlength{\parsep}{-0.02in}\setlength{\belowdisplayskip}{0.01in}\setlength{\abovedisplayskip}{0.01in}\setlength{\abovedisplayshortskip}{-0.04in}\setlength{\belowdisplayshortskip}{0.01in}}}{\end{list}}';
1.100 albertel 208: }
209: return $currentstring;
210: }
1.122 albertel 211:
212: sub end_html {
1.232 sakharuk 213: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 214: my $currentstring = '';
1.324 albertel 215: if ($target eq 'web' || $target eq 'webgrade') {
1.327 albertel 216: # end_body takes care of the </html>
1.122 albertel 217: }
218: return $currentstring;
219: }
220:
1.181 sakharuk 221: #-- <head> tag (end tag optional)
1.122 albertel 222: sub start_head {
223: my ($target,$token) = @_;
224: my $currentstring = '';
1.324 albertel 225: if ($target eq 'web' || $target eq 'webgrade') {
1.327 albertel 226: &Apache::lonxml::startredirection();
1.122 albertel 227: }
228: return $currentstring;
229: }
230:
231: sub end_head {
232: my ($target,$token) = @_;
233: my $currentstring = '';
1.324 albertel 234: if (($target eq 'web' && $env{'request.state'} eq 'published') ||
235: ($target eq 'webgrade' && $env{'request.state'} eq 'published')) {
1.327 albertel 236: # in case there is a </head> but no <head>
237: if ($Apache::lonxml::redirection) {
238: $Apache::londefdef::head = &Apache::lonxml::endredirection();
239: }
1.122 albertel 240: }
241: return $currentstring;
242: }
243:
1.181 sakharuk 244: #-- <map> tag (end tag required)
1.122 albertel 245: sub start_map {
246: my ($target,$token) = @_;
247: my $currentstring = '';
1.325 albertel 248: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 249: $currentstring = $token->[4];
250: }
251: return $currentstring;
252: }
253:
254: sub end_map {
255: my ($target,$token) = @_;
256: my $currentstring = '';
1.325 albertel 257: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 258: $currentstring = $token->[2];
259: }
260: return $currentstring;
261: }
262:
1.181 sakharuk 263: #-- <select> tag (end tag required)
1.122 albertel 264: sub start_select {
265: my ($target,$token) = @_;
266: my $currentstring = '';
1.325 albertel 267: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 268: $currentstring = $token->[4];
1.181 sakharuk 269: } elsif ($target eq 'tex') {
270: $Apache::londefdef::select=0;
271: }
1.122 albertel 272: return $currentstring;
273: }
274:
275: sub end_select {
276: my ($target,$token) = @_;
277: my $currentstring = '';
1.325 albertel 278: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 279: $currentstring = $token->[2];
280: }
281: return $currentstring;
282: }
283:
1.181 sakharuk 284: #-- <option> tag (end tag optional)
1.122 albertel 285: sub start_option {
1.181 sakharuk 286: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 287: my $currentstring = '';
1.325 albertel 288: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 289: $currentstring = $token->[4];
1.181 sakharuk 290: } elsif ($target eq 'tex') {
291: $Apache::londefdef::select++;
292: if ($Apache::londefdef::select == 1) {
293: $currentstring='\noindent\fbox{'.&Apache::lonxml::get_param('value',$parstack,$safeeval).'}\keephidden{';
294: } else {
295: $currentstring='\keephidden{';
296: }
297: }
1.122 albertel 298: return $currentstring;
299: }
300:
301: sub end_option {
302: my ($target,$token) = @_;
303: my $currentstring = '';
1.325 albertel 304: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 305: $currentstring = $token->[2];
1.181 sakharuk 306: } elsif ($target eq 'tex') {
307: $currentstring='}';
308: }
1.122 albertel 309: return $currentstring;
310: }
311:
1.181 sakharuk 312: #-- <input> tag (end tag forbidden)
1.122 albertel 313: sub start_input {
314: my ($target,$token) = @_;
315: my $currentstring = '';
1.325 albertel 316: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 317: $currentstring = $token->[4];
318: }
319: return $currentstring;
320: }
321:
322: sub end_input {
323: my ($target,$token) = @_;
324: my $currentstring = '';
1.325 albertel 325: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 326: $currentstring = $token->[2];
327: }
328: return $currentstring;
329: }
330:
1.181 sakharuk 331: #-- <textarea> tag (end tag required)
1.122 albertel 332: sub start_textarea {
333: my ($target,$token) = @_;
334: my $currentstring = '';
1.325 albertel 335: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 336: $currentstring = $token->[4];
337: }
338: return $currentstring;
339: }
340:
341: sub end_textarea {
342: my ($target,$token) = @_;
343: my $currentstring = '';
1.325 albertel 344: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 345: $currentstring = $token->[2];
346: }
347: return $currentstring;
348: }
349:
1.181 sakharuk 350: #-- <form> tag (end tag required)
1.122 albertel 351: sub start_form {
352: my ($target,$token) = @_;
353: my $currentstring = '';
1.325 albertel 354: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 355: $currentstring = $token->[4];
356: }
357: return $currentstring;
358: }
359:
360: sub end_form {
361: my ($target,$token) = @_;
362: my $currentstring = '';
1.325 albertel 363: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 364: $currentstring = $token->[2];
365: }
366: return $currentstring;
367: }
368:
1.181 sakharuk 369: #-- <title> tag (end tag required)
1.122 albertel 370: sub start_title {
1.327 albertel 371: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 372: my $currentstring = '';
1.324 albertel 373: if ($target eq 'web' || $target eq 'webgrade') {
1.327 albertel 374: $Apache::londefdef::title =
375: &Apache::lonxml::get_all_text('/title',$parser,$style);
1.122 albertel 376: } elsif ($target eq 'tex') {
1.166 sakharuk 377: $currentstring .= '\keephidden{Title of the document: '
1.122 albertel 378: }
379: if ($target eq 'meta') {
380: $currentstring='<title>';
1.185 albertel 381: &start_output($target);
1.122 albertel 382: }
383: return $currentstring;
384: }
385:
386: sub end_title {
387: my ($target,$token) = @_;
388: my $currentstring = '';
1.324 albertel 389: if ($target eq 'web' || $target eq 'webgrade') {
1.327 albertel 390: # start_title takes care of swallowing the title
1.122 albertel 391: } elsif ($target eq 'tex') {
392: $currentstring .= '}';
393: }
394: if ($target eq 'meta') {
1.185 albertel 395: &end_output($target);
1.122 albertel 396: $currentstring='</title>';
397: }
398: return $currentstring;
399: }
400:
1.181 sakharuk 401: #-- <meta> tag (end tag forbidden)
1.122 albertel 402: sub start_meta {
1.299 albertel 403: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 404: my $currentstring = '';
1.325 albertel 405: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 406: my $args='';
407: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
408: if ($args eq '') {
1.299 albertel 409: &Apache::lonxml::get_all_text("/meta",$parser,$style);
1.122 albertel 410: } else {
411: $currentstring = $token->[4];
1.1 sakharuk 412: }
1.135 sakharuk 413: } elsif ($target eq 'meta') {
1.122 albertel 414: unless (&Apache::lonxml::get_param
415: ('http-equiv',$parstack,$safeeval,undef,1)) {
416: my $name=$token->[2]->{'name'};
417: $name=~tr/A-Z/a-z/;
418: $name=~s/\s/\_/gs;
419: $name=~s/\W//gs;
420: if ($name) {
1.154 www 421: $currentstring='<'.$name;
422: my $display=&Apache::lonxml::get_param
423: ('display',$parstack,$safeeval,undef,1);
424: if ($display) {
425: $display=~s/\"/\'/g;
426: $currentstring.=' display="'.$display.'"';
427: }
428: $currentstring.='>'.
1.122 albertel 429: &Apache::lonxml::get_param
430: ('content',$parstack,$safeeval,undef,1).
1.135 sakharuk 431: '</'.$name.'>';
1.1 sakharuk 432: }
1.154 www 433: my $display=&Apache::lonxml::get_param
434: ('display',$parstack,$safeeval,undef,1);
435: if ($display) {
1.204 albertel 436: $display=&HTML::Entities::encode($display,'<>&"');
1.154 www 437: $currentstring.='<'.$name.'.display>'.$display.
438: '</'.$name.'.display>';
439: }
1.1 sakharuk 440: }
1.135 sakharuk 441: } elsif ($target eq 'tex') {
1.151 sakharuk 442: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
443: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
444: if ((not defined $content) && (not defined $name)) {
445: &Apache::lonxml::startredirection();
446: }
1.122 albertel 447: }
448: return $currentstring;
449: }
450:
451: sub end_meta {
1.165 albertel 452: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 453: my $currentstring = '';
1.325 albertel 454: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 455: my $args='';
456: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
457: if ($args ne '') {
1.121 www 458: $currentstring = $token->[4];
1.122 albertel 459: }
1.135 sakharuk 460: } elsif ($target eq 'tex') {
1.165 albertel 461: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
462: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
1.164 albertel 463: if ((not defined $content) && (not defined $name)) {
1.169 albertel 464: &Apache::lonxml::endredirection();
1.164 albertel 465: }
1.135 sakharuk 466: }
1.122 albertel 467: return $currentstring;
468: }
469:
1.121 www 470: # accessrule
1.122 albertel 471: sub start_accessrule {
1.299 albertel 472: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 473: my $currentstring = '';
474: my $eff=&Apache::lonxml::get_param
475: ('effect',$parstack,$safeeval,undef,1);
476: my $realm=&Apache::lonxml::get_param
477: ('realm',$parstack,$safeeval,undef,1);
1.123 www 478: my $role=&Apache::lonxml::get_param
479: ('role',$parstack,$safeeval,undef,1);
480: $realm=~s/\s+//g;
481: $realm=~s/\//\_/g;
482: $realm=~s/^\_//;
483: $realm=~s/\W/\;/g;
484: $role=~s/\s+//g;
485: $role=~s/\//\_/g;
486: $role=~s/\W/\;/g;
1.122 albertel 487: if ($target eq 'web') {
488: my $args='';
489: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
490: if ($args eq '') {
1.299 albertel 491: &Apache::lonxml::get_all_text("/accessrule",$parser,$style);
1.122 albertel 492: } else {
493: $currentstring = $token->[4];
494: }
495: }
496: if ($target eq 'meta') {
1.123 www 497: $currentstring='<rule>'.$eff.':'.$realm.':'.$role.'</rule>';
1.122 albertel 498: }
499: return $currentstring;
500: }
501:
502: sub end_accessrule {
503: my ($target,$token,$tagstack,$parstack,$parser) = @_;
504: my $currentstring = '';
505: if ($target eq 'web') {
506: my $args='';
507: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
508: if ($args ne '') {
509: $currentstring = $token->[4];
510: }
511: }
512: return $currentstring;
513: }
514:
1.181 sakharuk 515: #-- <body> tag (end tag required)
1.122 albertel 516: sub start_body {
517: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
518: my $currentstring = '';
1.244 albertel 519:
1.324 albertel 520: if ($target eq 'web' || $target eq 'webgrade') {
1.170 albertel 521: if ($Apache::lonhomework::parsing_a_problem) {
522: &Apache::lonxml::warning("<body> tag found inside of <problem> tag this can cause problems.");
523: return '';
524: }
1.122 albertel 525:
1.327 albertel 526: if (&is_inside_of($tagstack, "head")) {
527: &end_head(@_);
1.122 albertel 528: }
1.327 albertel 529: $currentstring =
530: &Apache::loncommon::start_page($Apache::londefdef::title,
531: $Apache::londefdef::head,
532: {'add_entries' => $token->[2],
533: 'no_title' => 1,
534: 'force_register' => 1});
535:
1.267 albertel 536: if ($env{'request.state'} ne 'published') {
1.330 albertel 537: $currentstring.=&Apache::lonmenu::constspaceform();
1.122 albertel 538: $currentstring.=(<<EDITBUTTON);
1.278 www 539: <form method="post">
540: <input type="submit" name="editmode" accesskey="e" value="Edit" />
541: </form>
1.327 albertel 542: <br />
1.40 albertel 543: EDITBUTTON
1.1 sakharuk 544: }
1.201 albertel 545: $currentstring.=&Apache::lonxml::message_location();
1.122 albertel 546: } elsif ($target eq 'tex') {
547: $currentstring = '\begin{document}';
548: }
549: return $currentstring;
550: }
551:
552: sub end_body {
1.259 albertel 553: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 554: my $currentstring = &end_p(); # Close off unclosed <p>
1.324 albertel 555: if ($target eq 'web' || $target eq 'webgrade') {
1.327 albertel 556: $currentstring .= &Apache::loncommon::end_page({'discussion' => 1});
1.122 albertel 557: } elsif ($target eq 'tex') {
1.277 foxr 558: $currentstring .= '\strut\newline\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\newline\noindent \end{document}';
1.122 albertel 559: }
560: return $currentstring;
561: }
562:
1.309 albertel 563: # \begin{center} causes a new paragprah spacing that looks odd inside
1.337 foxr 564: # of a table cell. Same at the end of a \center but with a slightly
565: # larger space .. hence center_correction and center_end_correction.
566: #
567: sub center_correction { return '\vspace*{-6 mm}'; }
568: sub center_end_correction { return '\vspace*{-7 mm}'; }
569:
1.181 sakharuk 570: #-- <center> tag (end tag required)
1.122 albertel 571: sub start_center {
1.309 albertel 572: my ($target,$token,$tagstack) = @_;
1.279 foxr 573: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 574: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 575: $currentstring .= $token->[4];
1.122 albertel 576: } elsif ($target eq 'tex') {
1.309 albertel 577: if (&is_inside_of($tagstack, "table")) {
578: $currentstring .= ¢er_correction();
579: }
1.277 foxr 580: $currentstring .= '\begin{center}';
1.144 sakharuk 581: }
1.122 albertel 582: return $currentstring;
583: }
584:
585: sub end_center {
1.309 albertel 586: my ($target,$token,$tagstack) = @_;
1.122 albertel 587: my $currentstring = '';
1.325 albertel 588: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 589: $currentstring = $token->[2];
590: } elsif ($target eq 'tex') {
591: $currentstring = '\end{center}';
1.337 foxr 592: if (&is_inside_of($tagstack, "table")) {
593: $currentstring .= ¢er_end_correction();
594: }
1.144 sakharuk 595: }
1.122 albertel 596: return $currentstring;
597: }
598:
1.181 sakharuk 599: #-- <b> tag (end tag required)
1.279 foxr 600: # NOTE: In TeX mode disables internal <p>
1.122 albertel 601: sub start_b {
602: my ($target,$token) = @_;
603: my $currentstring = '';
1.325 albertel 604: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 605: $currentstring = $token->[4];
606: } elsif ($target eq 'tex') {
1.279 foxr 607: &disable_para();
608: $currentstring .= '\textbf{';
1.122 albertel 609: }
610: return $currentstring;
611: }
612:
613: sub end_b {
614: my ($target,$token) = @_;
615: my $currentstring = '';
1.325 albertel 616: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 617: $currentstring = $token->[2];
618: } elsif ($target eq 'tex') {
1.279 foxr 619: &enable_para();
620: $currentstring = '}';
1.122 albertel 621: }
622: return $currentstring;
623: }
1.35 sakharuk 624:
1.181 sakharuk 625: #-- <strong> tag (end tag required)
1.279 foxr 626: # NOTE: in TeX mode disables internal <p>
1.122 albertel 627: sub start_strong {
628: my ($target,$token) = @_;
629: my $currentstring = '';
1.325 albertel 630: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 631: $currentstring = $token->[4];
632: } elsif ($target eq 'tex') {
1.279 foxr 633: &disable_para();
1.122 albertel 634: $currentstring = '\textbf{';
635: }
636: return $currentstring;
637: }
638:
639: sub end_strong {
640: my ($target,$token) = @_;
641: my $currentstring = '';
1.325 albertel 642: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 643: $currentstring = $token->[2];
644: } elsif ($target eq 'tex') {
1.279 foxr 645: &enable_para();
1.122 albertel 646: $currentstring = '}';
1.144 sakharuk 647: }
1.122 albertel 648: return $currentstring;
649: }
650:
1.181 sakharuk 651: #-- <h1> tag (end tag required)
1.122 albertel 652: sub start_h1 {
1.125 sakharuk 653: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 654: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 655: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 656: $currentstring .= $token->[4];
657: } elsif ($target eq 'tex') {
1.125 sakharuk 658: my $pre;
1.199 albertel 659: my $align=lc(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1));
1.212 sakharuk 660: if ($align eq 'center') {
1.125 sakharuk 661: $pre='\begin{center}';
662: } elsif ($align eq 'left') {
663: $pre='\rlap{';
664: } elsif ($align eq 'right') {
665: $pre=' \hfill \llap{';
666: }
667: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
668: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 669: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 670: } elsif ($target eq 'meta') {
1.277 foxr 671: $currentstring.='<subject>';
1.185 albertel 672: &start_output($target);
1.122 albertel 673: }
674: return $currentstring;
675: }
676:
677: sub end_h1 {
1.125 sakharuk 678: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 679: my $currentstring = '';
1.325 albertel 680: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 681: $currentstring .= $token->[2];
682: } elsif ($target eq 'tex') {
1.212 sakharuk 683: my $post='\vskip 0 mm ';
1.125 sakharuk 684: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 685: if ($align eq 'center') {
1.125 sakharuk 686: $post='\end{center}';
687: } elsif ($align eq 'left') {
688: $post='} \hfill'.'\vskip 0 mm ';
689: } elsif ($align eq 'right') {
690: $post='}'.'\vskip 0 mm ';
691: }
692: $currentstring .= '}}'.$post;
1.122 albertel 693: } elsif ($target eq 'meta') {
1.185 albertel 694: &end_output($target);
1.122 albertel 695: $currentstring='</subject>';
696: }
697: return $currentstring;
698: }
699:
1.35 sakharuk 700: #-- <h2> tag
1.122 albertel 701: sub start_h2 {
1.125 sakharuk 702: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 703: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 704: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 705: $currentstring .= $token->[4];
706: } elsif ($target eq 'tex') {
1.125 sakharuk 707: my $pre;
708: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 709: if ($align eq 'center') {
1.125 sakharuk 710: $pre='\begin{center}';
711: } elsif ($align eq 'left') {
712: $pre='\rlap{';
713: } elsif ($align eq 'right') {
714: $pre=' \hfill \llap{';
715: }
716: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
717: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 718: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 719: }
720: return $currentstring;
721: }
722:
723: sub end_h2 {
1.125 sakharuk 724: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 725: my $currentstring = '';
1.325 albertel 726: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 727: $currentstring .= $token->[2];
728: } elsif ($target eq 'tex') {
1.212 sakharuk 729: my $post='\vskip 0 mm ';
1.125 sakharuk 730: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 731: if ($align eq 'center') {
1.125 sakharuk 732: $post='\end{center}';
733: } elsif ($align eq 'left') {
734: $post='} \hfill'.'\vskip 0 mm ';
735: } elsif ($align eq 'right') {
736: $post='}'.'\vskip 0 mm ';
737: }
738: $currentstring .= '}}'.$post;
1.122 albertel 739: }
740: return $currentstring;
741: }
742:
1.35 sakharuk 743: #-- <h3> tag
1.122 albertel 744: sub start_h3 {
1.125 sakharuk 745: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 746: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 747: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 748: $currentstring .= $token->[4];
749: } elsif ($target eq 'tex') {
1.125 sakharuk 750: my $pre;
751: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 752: if ($align eq 'center') {
1.125 sakharuk 753: $pre='\begin{center}';
754: } elsif ($align eq 'left') {
755: $pre='\rlap{';
756: } elsif ($align eq 'right') {
757: $pre=' \hfill \llap{';
758: }
759: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
760: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 761: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 762: }
763: return $currentstring;
764: }
765:
766: sub end_h3 {
1.125 sakharuk 767: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 768: my $currentstring = '';
1.325 albertel 769: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 770: $currentstring .= $token->[2];
771: } elsif ($target eq 'tex') {
1.212 sakharuk 772: my $post='\vskip 0 mm ';
1.125 sakharuk 773: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 774: if ($align eq 'center') {
1.125 sakharuk 775: $post='\end{center}';
776: } elsif ($align eq 'left') {
777: $post='} \hfill'.'\vskip 0 mm ';
778: } elsif ($align eq 'right') {
779: $post='}'.'\vskip 0 mm ';
780: }
781: $currentstring .= '}}'.$post;
1.122 albertel 782: }
783: return $currentstring;
784: }
785:
1.35 sakharuk 786: #-- <h4> tag
1.122 albertel 787: sub start_h4 {
1.125 sakharuk 788: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 789: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 790: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 791: $currentstring .= $token->[4];
792: } elsif ($target eq 'tex') {
1.125 sakharuk 793: my $pre;
794: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 795: if ($align eq 'center') {
1.125 sakharuk 796: $pre='\begin{center}';
797: } elsif ($align eq 'left') {
798: $pre='\rlap{';
799: } elsif ($align eq 'right') {
800: $pre=' \hfill \llap{';
801: }
802: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
803: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 804: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 805: }
806: return $currentstring;
807: }
808:
809: sub end_h4 {
1.125 sakharuk 810: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 811: my $currentstring = '';
1.325 albertel 812: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 813: $currentstring .= $token->[2];
814: } elsif ($target eq 'tex') {
1.212 sakharuk 815: my $post='\vskip 0 mm ';
1.125 sakharuk 816: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 817: if ($align eq 'center') {
1.125 sakharuk 818: $post='\end{center}';
819: } elsif ($align eq 'left') {
820: $post='} \hfill'.'\vskip 0 mm ';
821: } elsif ($align eq 'right') {
822: $post='}'.'\vskip 0 mm ';
823: }
824: $currentstring .= '}}'.$post;
1.122 albertel 825: }
826: return $currentstring;
827: }
828:
1.35 sakharuk 829: #-- <h5> tag
1.122 albertel 830: sub start_h5 {
1.125 sakharuk 831: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 832: my $currentstring = &end_p(); # Close off any prior paras.
1.325 albertel 833: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 834: $currentstring .= $token->[4];
835: } elsif ($target eq 'tex') {
1.125 sakharuk 836: my $pre;
837: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 838: if ($align eq 'center') {
1.125 sakharuk 839: $pre='\begin{center}';
840: } elsif ($align eq 'left') {
841: $pre='\rlap{';
842: } elsif ($align eq 'right') {
843: $pre=' \hfill \llap{';
844: }
845: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
846: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 847: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 848: }
849: return $currentstring;
850: }
851:
852: sub end_h5 {
1.125 sakharuk 853: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 854: my $currentstring = '';
1.325 albertel 855: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 856: $currentstring .= $token->[2];
857: } elsif ($target eq 'tex') {
1.212 sakharuk 858: my $post='\vskip 0 mm ';
1.125 sakharuk 859: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 860: if ($align eq 'center') {
1.125 sakharuk 861: $post='\end{center}';
862: } elsif ($align eq 'left') {
863: $post='} \hfill'.'\vskip 0 mm ';
864: } elsif ($align eq 'right') {
865: $post='}'.'\vskip 0 mm ';
866: }
867: $currentstring .= '}}'.$post;
1.122 albertel 868: }
869: return $currentstring;
870: }
871:
1.35 sakharuk 872: #-- <h6> tag
1.122 albertel 873: sub start_h6 {
1.125 sakharuk 874: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 875: my $currentstring = &end_p(); # Close off any prior paras.
1.325 albertel 876: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 877: $currentstring .= $token->[4];
878: } elsif ($target eq 'tex') {
1.125 sakharuk 879: my $pre;
880: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 881: if ($align eq 'center') {
1.125 sakharuk 882: $pre='\begin{center}';
883: } elsif ($align eq 'left') {
884: $pre='\rlap{';
885: } elsif ($align eq 'right') {
886: $pre=' \hfill \llap{';
887: }
888: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
889: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 890: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 891: }
892: return $currentstring;
893: }
894:
895: sub end_h6 {
1.125 sakharuk 896: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 897: my $currentstring = '';
1.325 albertel 898: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 899: $currentstring .= $token->[2];
900: } elsif ($target eq 'tex') {
1.212 sakharuk 901: my $post='\vskip 0 mm ';
1.125 sakharuk 902: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 903: if ($align eq 'center') {
1.125 sakharuk 904: $post='\end{center}';
905: } elsif ($align eq 'left') {
906: $post='} \hfill'.'\vskip 0 mm ';
907: } elsif ($align eq 'right') {
908: $post='}'.'\vskip 0 mm ';
909: }
910: $currentstring .= '}}'.$post;
1.122 albertel 911: }
912: return $currentstring;
913: }
914:
1.181 sakharuk 915: #--- <cite> tag (end tag required)
1.122 albertel 916: sub start_cite {
917: my ($target,$token) = @_;
918: my $currentstring = '';
1.325 albertel 919: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 920: $currentstring .= $token->[4];
921: } elsif ($target eq 'tex') {
1.179 sakharuk 922: $currentstring .= '\textit{';
1.144 sakharuk 923: }
1.122 albertel 924: return $currentstring;
925: }
926:
927: sub end_cite {
928: my ($target,$token) = @_;
929: my $currentstring = '';
1.325 albertel 930: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 931: $currentstring .= $token->[2];
932: } elsif ($target eq 'tex') {
1.179 sakharuk 933: $currentstring .= '}';
1.144 sakharuk 934: }
1.122 albertel 935: return $currentstring;
936: }
937:
1.181 sakharuk 938: #-- <i> tag (end tag required)
1.122 albertel 939: sub start_i {
940: my ($target,$token) = @_;
941: my $currentstring = '';
1.325 albertel 942: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 943: $currentstring .= $token->[4];
944: } elsif ($target eq 'tex') {
945: $currentstring .= '\textit{';
1.144 sakharuk 946: }
1.122 albertel 947: return $currentstring;
948: }
949:
950: sub end_i {
951: my ($target,$token) = @_;
952: my $currentstring = '';
1.325 albertel 953: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 954: $currentstring .= $token->[2];
955: } elsif ($target eq 'tex') {
956: $currentstring .= '}';
957: }
958: return $currentstring;
959: }
960:
1.181 sakharuk 961: #-- <address> tag (end tag required)
1.122 albertel 962: sub start_address {
963: my ($target,$token) = @_;
964: my $currentstring = '';
1.325 albertel 965: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 966: $currentstring .= $token->[4];
967: } elsif ($target eq 'tex') {
1.179 sakharuk 968: $currentstring .= '\textit{';
1.144 sakharuk 969: }
1.122 albertel 970: return $currentstring;
971: }
972:
973: sub end_address {
974: my ($target,$token) = @_;
975: my $currentstring = '';
1.325 albertel 976: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 977: $currentstring .= $token->[2];
978: } elsif ($target eq 'tex') {
1.179 sakharuk 979: $currentstring .= '}';
1.122 albertel 980: }
981: return $currentstring;
982: }
983:
1.181 sakharuk 984: #-- <dfn> tag (end tag required)
1.122 albertel 985: sub start_dfn {
986: my ($target,$token) = @_;
987: my $currentstring = '';
1.325 albertel 988: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 989: $currentstring .= $token->[4];
990: } elsif ($target eq 'tex') {
1.179 sakharuk 991: $currentstring .= '\textit{';
1.122 albertel 992: }
993: return $currentstring;
994: }
995:
996: sub end_dfn {
997: my ($target,$token) = @_;
998: my $currentstring = '';
1.325 albertel 999: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1000: $currentstring .= $token->[2];
1001: } elsif ($target eq 'tex') {
1.179 sakharuk 1002: $currentstring .= '}';
1.144 sakharuk 1003: }
1.122 albertel 1004: return $currentstring;
1005: }
1006:
1.181 sakharuk 1007: #-- <tt> tag (end tag required)
1.122 albertel 1008: sub start_tt {
1009: my ($target,$token) = @_;
1010: my $currentstring = '';
1.325 albertel 1011: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1012: $currentstring .= $token->[4];
1013: } elsif ($target eq 'tex') {
1014: $currentstring .= '\texttt{';
1.144 sakharuk 1015: }
1.122 albertel 1016: return $currentstring;
1017: }
1018:
1019: sub end_tt {
1020: my ($target,$token) = @_;
1021: my $currentstring = '';
1.325 albertel 1022: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1023: $currentstring .= $token->[2];
1024: } elsif ($target eq 'tex') {
1025: $currentstring .= '}';
1026: }
1027: return $currentstring;
1028: }
1029:
1.181 sakharuk 1030: #-- <kbd> tag (end tag required)
1.122 albertel 1031: sub start_kbd {
1032: my ($target,$token) = @_;
1033: my $currentstring = '';
1.325 albertel 1034: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1035: $currentstring .= $token->[4];
1036: } elsif ($target eq 'tex') {
1.179 sakharuk 1037: $currentstring .= '\texttt{';
1.144 sakharuk 1038: }
1.122 albertel 1039: return $currentstring;
1040: }
1041:
1042: sub end_kbd {
1043: my ($target,$token) = @_;
1044: my $currentstring = '';
1.325 albertel 1045: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1046: $currentstring .= $token->[2];
1047: } elsif ($target eq 'tex') {
1.179 sakharuk 1048: $currentstring .= '}';
1.144 sakharuk 1049: }
1.122 albertel 1050: return $currentstring;
1051: }
1052:
1.181 sakharuk 1053: #-- <code> tag (end tag required)
1.122 albertel 1054: sub start_code {
1055: my ($target,$token) = @_;
1056: my $currentstring = '';
1.325 albertel 1057: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1058: $currentstring .= $token->[4];
1059: } elsif ($target eq 'tex') {
1060: $currentstring .= '\texttt{';
1061: }
1062: return $currentstring;
1063: }
1064:
1065: sub end_code {
1066: my ($target,$token) = @_;
1067: my $currentstring = '';
1.325 albertel 1068: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1069: $currentstring .= $token->[2];
1070: } elsif ($target eq 'tex') {
1071: $currentstring .= '}';
1072: }
1073: return $currentstring;
1074: }
1075:
1.181 sakharuk 1076: #-- <em> tag (end tag required)
1.122 albertel 1077: sub start_em {
1078: my ($target,$token) = @_;
1079: my $currentstring = '';
1.325 albertel 1080: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1081: $currentstring .= $token->[4];
1082: } elsif ($target eq 'tex') {
1083: $currentstring .= '\emph{';
1.144 sakharuk 1084: }
1.122 albertel 1085: return $currentstring;
1086: }
1087:
1088: sub end_em {
1089: my ($target,$token) = @_;
1090: my $currentstring = '';
1.325 albertel 1091: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1092: $currentstring .= $token->[2];
1093: } elsif ($target eq 'tex') {
1094: $currentstring .= '}';
1.144 sakharuk 1095: }
1.122 albertel 1096: return $currentstring;
1097: }
1098:
1.181 sakharuk 1099: #-- <q> tag (end tag required)
1.122 albertel 1100: sub start_q {
1101: my ($target,$token) = @_;
1102: my $currentstring = '';
1.325 albertel 1103: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1104: $currentstring .= $token->[4];
1105: } elsif ($target eq 'tex') {
1.179 sakharuk 1106: $currentstring .= '\emph{';
1.122 albertel 1107: }
1108: return $currentstring;
1109: }
1110:
1111: sub end_q {
1112: my ($target,$token) = @_;
1113: my $currentstring = '';
1.325 albertel 1114: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1115: $currentstring .= $token->[2];
1116: } elsif ($target eq 'tex') {
1.179 sakharuk 1117: $currentstring .= '}';
1.144 sakharuk 1118: }
1.122 albertel 1119: return $currentstring;
1120: }
1121:
1.277 foxr 1122: # <p> is a bit strange since it does not require a closing </p>
1123: # However in latex, we must often output closing stuff to end
1124: # environments and {}'s etc. Therefore we do all the work
1125: # of figuring out the ending strings in the start tag processing,
1126: # and provide a mechanism to output the stop text external
1127: # to tag processing.
1128: #
1129: {
1130:
1131: my $closing_string = ''; # String required to close <p>
1132:
1.279 foxr 1133: # Some tags are <p> fragile meaning that <p> inside of them
1134: # does not work within TeX mode. This is managed via the
1135: # counter below:
1136: #
1137:
1138: my $para_disabled = 0;
1139:
1140: sub disable_para {
1141: $para_disabled++;
1142: }
1143: sub enable_para {
1144: $para_disabled--;
1145: }
1146:
1147:
1.181 sakharuk 1148: #-- <p> tag (end tag optional)
1.198 sakharuk 1149: #optional attribute - align="center|left|right"
1.122 albertel 1150: sub start_p {
1.157 sakharuk 1151: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1152: my $currentstring = '';
1.325 albertel 1153: if ($target eq 'web' || $target eq 'webgrade') {
1.279 foxr 1154: $currentstring .= &end_p(); # close off prior para if in progress.
1.122 albertel 1155: $currentstring .= $token->[4];
1.279 foxr 1156: if (! ($currentstring =~ /\//)) {
1157: $closing_string = '</p>'; # Deal correctly with <p /> e.g.
1158: }
1159: } elsif ($target eq 'tex' && !$para_disabled) {
1.313 foxr 1160:
1.279 foxr 1161: $currentstring .= &end_p(); # close off prior para if in progress.
1.198 sakharuk 1162: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1163: if ($align eq 'center') {
1.333 albertel 1164: $currentstring .='\begin{center}\par ';
1.277 foxr 1165: $closing_string = '\end{center}';
1.309 albertel 1166: if (&is_inside_of($tagstack, "table")) {
1167: $currentstring = ¢er_correction().$currentstring;
1168: }
1.198 sakharuk 1169: } elsif ($align eq 'right') {
1.323 foxr 1170: $currentstring.="\n".'{\flushright ';
1171: # $currentstring.='\makebox['.$env{'form.textwidth'}.']{\hfill\llap{';
1172: $closing_string= "}\n";
1.198 sakharuk 1173: } elsif ($align eq 'left') {
1.323 foxr 1174: $currentstring.= "\n".'{\flushleft ';
1175: # $currentstring.='\noindent\makebox['.$env{'form.textwidth'}.']{{';
1176: $closing_string = "}\n";
1.216 matthew 1177: } else {
1.277 foxr 1178: $currentstring.='\par ';
1.313 foxr 1179: if (&is_inside_of($tagstack, 'table')) {
1.315 foxr 1180: $closing_string = '\vskip 0pt'; # Seems to be consistent with <p> in tables.
1.313 foxr 1181: } else {
1182: $closing_string = '\strut\\\\\strut ';
1183: }
1.216 matthew 1184: }
1.277 foxr 1185:
1.144 sakharuk 1186: }
1.122 albertel 1187: return $currentstring;
1188: }
1.277 foxr 1189: #
1190: # End paragraph processing just requires that we output the
1191: # closing string that was saved and blank it.
1192: sub end_p {
1.279 foxr 1193: # Note only 'tex' mode uses disable_para and enable_para
1194: # so we don't need to know the target in the check below:
1195:
1196: if (!$para_disabled) {
1197: my $current_string = $closing_string;
1198: $closing_string = ''; # Not in a para anymore.
1199: return $current_string;
1200: } else {
1201: return '';
1202: }
1.122 albertel 1203:
1204: }
1.277 foxr 1205: }
1.181 sakharuk 1206: #-- <br> tag (end tag forbidden)
1.122 albertel 1207: sub start_br {
1208: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1209: my $currentstring = '';
1.325 albertel 1210: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1211: $currentstring .= $token->[4];
1212: } elsif ($target eq 'tex') {
1.227 sakharuk 1213: my @tempo=@$tagstack;
1.229 sakharuk 1214: my $signal=0;
1.287 foxr 1215: # Not going to factor this to is_inside_of since that would require
1216: # multiple stack traversals.
1217: #
1.227 sakharuk 1218: for (my $i=$#tempo;$i>=0;$i--) {
1219: if (($tempo[$i] eq 'b') || ($tempo[$i] eq 'strong') ||
1.334 albertel 1220: ($tempo[$i] eq 'ol') || ($tempo[$i] eq 'ul')) {
1.229 sakharuk 1221: $signal=1;
1.334 albertel 1222: }
1223: if (($tempo[$i] eq 'td') || ($tempo[$i] eq 'th')) {
1.336 foxr 1224: $signal = 1;
1.227 sakharuk 1225: }
1226: }
1.334 albertel 1227: if ($signal eq 1) {
1.219 sakharuk 1228: $currentstring .= ' \vskip 0 mm ';
1229: } elsif ($$tagstack[-2] ne 'sub' && $$tagstack[-2] ne 'sup') {
1230: $currentstring .= '\strut \\\\ \strut ';
1.338 ! foxr 1231: } else { # Honor break in simple <sup></sup>
! 1232: $currentstring .= '}} \strut \\\\ \strut \ensuremath{^{';
1.1 sakharuk 1233: }
1.144 sakharuk 1234: }
1.122 albertel 1235: return $currentstring;
1236: }
1237:
1238: sub end_br {
1239: my ($target,$token) = @_;
1240: my $currentstring = '';
1.325 albertel 1241: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1242: $currentstring .= $token->[2];
1243: }
1244: return $currentstring;
1245: }
1246:
1.181 sakharuk 1247: #-- <big> tag (end tag required)
1.122 albertel 1248: sub start_big {
1249: my ($target,$token) = @_;
1250: my $currentstring = '';
1.325 albertel 1251: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1252: $currentstring .= $token->[4];
1253: } elsif ($target eq 'tex') {
1.137 sakharuk 1254: $currentstring .= '{\large ';
1.144 sakharuk 1255: }
1.122 albertel 1256: return $currentstring;
1257: }
1258:
1259: sub end_big {
1260: my ($target,$token) = @_;
1261: my $currentstring = '';
1.325 albertel 1262: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1263: $currentstring .= $token->[2];
1264: } elsif ($target eq 'tex') {
1265: $currentstring .= '}';
1266: }
1267: return $currentstring;
1268: }
1269:
1.181 sakharuk 1270: #-- <small> tag (end tag required)
1.122 albertel 1271: sub start_small {
1272: my ($target,$token) = @_;
1273: my $currentstring = '';
1.325 albertel 1274: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1275: $currentstring .= $token->[4];
1276: } elsif ($target eq 'tex') {
1277: $currentstring .= '{\footnotesize ';
1.144 sakharuk 1278: }
1.122 albertel 1279: return $currentstring;
1280: }
1281:
1282: sub end_small {
1283: my ($target,$token) = @_;
1284: my $currentstring = '';
1.325 albertel 1285: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1286: $currentstring .= $token->[2];
1287: } elsif ($target eq 'tex') {
1288: $currentstring .= '}';
1289: }
1290: return $currentstring;
1291: }
1292:
1.181 sakharuk 1293: #-- <basefont> tag (end tag forbidden)
1.122 albertel 1294: sub start_basefont {
1.126 sakharuk 1295: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.122 albertel 1296: my $currentstring = '';
1.325 albertel 1297: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1298: $currentstring = $token->[4];
1.126 sakharuk 1299: } elsif ($target eq 'tex') {
1300: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1301: if (defined $basesize) {
1302: $currentstring = '{\\'.$basesize.' ';
1303: }
1304: }
1.122 albertel 1305: return $currentstring;
1306: }
1307:
1308: sub end_basefont {
1.126 sakharuk 1309: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1310: my $currentstring = '';
1.325 albertel 1311: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1312: $currentstring = $token->[4];
1.126 sakharuk 1313: } elsif ($target eq 'tex') {
1314: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1315: if (defined $basesize) {
1316: $currentstring = '}';
1317: }
1318: }
1.122 albertel 1319: return $currentstring;
1320: }
1321:
1.181 sakharuk 1322: #-- <font> tag (end tag required)
1.122 albertel 1323: sub start_font {
1324: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1325: my $currentstring = '';
1.325 albertel 1326: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1327: my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
1.204 albertel 1328: if ($face!~/symbol/i) {
1.267 albertel 1329: if (($env{'browser.fontenhance'} eq 'on') ||
1330: ($env{'browser.blackwhite'} eq 'on')) { return ''; }
1.155 www 1331: }
1.122 albertel 1332: $currentstring = $token->[4];
1.126 sakharuk 1333: } elsif ($target eq 'tex') {
1334: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1335: if (defined $fontsize) {
1336: $currentstring = '{\\'.$fontsize.' ';
1337: }
1338: }
1.122 albertel 1339: return $currentstring;
1340: }
1341:
1342: sub end_font {
1343: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1344: my $currentstring = '';
1.325 albertel 1345: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1346: $currentstring = $token->[2];
1.126 sakharuk 1347: } elsif ($target eq 'tex') {
1348: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1349: if (defined $fontsize) {
1350: $currentstring = '}';
1351: }
1352: }
1.122 albertel 1353: return $currentstring;
1354: }
1355:
1.181 sakharuk 1356: #-- <strike> tag (end tag required)
1.122 albertel 1357: sub start_strike {
1358: my ($target,$token) = @_;
1359: my $currentstring = '';
1.325 albertel 1360: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1361: $currentstring .= $token->[4];
1362: } elsif ($target eq 'tex') {
1363: &Apache::lonxml::startredirection();
1364: }
1365: return $currentstring;
1366: }
1367:
1368: sub end_strike {
1369: my ($target,$token) = @_;
1370: my $currentstring = '';
1.325 albertel 1371: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1372: $currentstring .= $token->[2];
1373: } elsif ($target eq 'tex') {
1374: $currentstring=&Apache::lonxml::endredirection();
1375: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1376: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1377: $currentstring=~s/(\S)\s*$/$1\}/;
1378: }
1379: return $currentstring;
1380: }
1381:
1.181 sakharuk 1382: #-- <s> tag (end tag required)
1.122 albertel 1383: sub start_s {
1384: my ($target,$token) = @_;
1385: my $currentstring = '';
1.325 albertel 1386: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1387: $currentstring .= $token->[4];
1388: } elsif ($target eq 'tex') {
1389: &Apache::lonxml::startredirection();
1390: }
1391: return $currentstring;
1392: }
1393:
1394: sub end_s {
1395: my ($target,$token) = @_;
1396: my $currentstring = '';
1.325 albertel 1397: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1398: $currentstring .= $token->[2];
1399: } elsif ($target eq 'tex') {
1400: $currentstring=&Apache::lonxml::endredirection();
1401: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1402: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1403: $currentstring=~s/(\S)\s*$/$1\}/;
1404: }
1405: return $currentstring;
1406: }
1407:
1.181 sakharuk 1408: #-- <sub> tag (end tag required)
1.122 albertel 1409: sub start_sub {
1410: my ($target,$token) = @_;
1411: my $currentstring = '';
1.325 albertel 1412: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1413: $currentstring .= $token->[4];
1414: } elsif ($target eq 'tex') {
1.202 sakharuk 1415: $currentstring .= '\ensuremath{_{';
1.122 albertel 1416: }
1417: return $currentstring;
1418: }
1419:
1420: sub end_sub {
1421: my ($target,$token) = @_;
1422: my $currentstring = '';
1.325 albertel 1423: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1424: $currentstring .= $token->[2];
1425: } elsif ($target eq 'tex') {
1.202 sakharuk 1426: $currentstring .= '}}';
1.122 albertel 1427: }
1428: return $currentstring;
1429: }
1430:
1.181 sakharuk 1431: #-- <sup> tag (end tag required)
1.122 albertel 1432: sub start_sup {
1433: my ($target,$token) = @_;
1434: my $currentstring = '';
1.325 albertel 1435: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1436: $currentstring .= $token->[4];
1437: } elsif ($target eq 'tex') {
1.202 sakharuk 1438: $currentstring .= '\ensuremath{^{';
1.122 albertel 1439: }
1440: return $currentstring;
1441: }
1442:
1443: sub end_sup {
1444: my ($target,$token) = @_;
1445: my $currentstring = '';
1.325 albertel 1446: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1447: $currentstring .= $token->[2];
1448: } elsif ($target eq 'tex') {
1.202 sakharuk 1449: $currentstring .= '}}';
1.122 albertel 1450: }
1451: return $currentstring;
1452: }
1453:
1.181 sakharuk 1454: #-- <hr> tag (end tag forbidden)
1.122 albertel 1455: sub start_hr {
1.124 sakharuk 1456: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1457: my $currentstring = &end_p(); # End enclosing para.
1.325 albertel 1458: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1459: $currentstring .= $token->[4];
1460: } elsif ($target eq 'tex') {
1.149 sakharuk 1461: my $LaTeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1.124 sakharuk 1462: if (defined $LaTeXwidth) {
1463: if ($LaTeXwidth=~/^%/) {
1464: substr($LaTeXwidth,0,1)='';
1465: $LaTeXwidth=($LaTeXwidth/100).'\textwidth';
1466: }
1467: } else {
1.148 sakharuk 1468: $LaTeXwidth ='0.9\textwidth';
1.124 sakharuk 1469: }
1470: my ($pre,$post);
1471: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1472: if (($align eq 'center') || (not defined $align)) {
1473: $pre=''; $post='';
1474: } elsif ($align eq 'left') {
1475: $pre='\rlap{'; $post='} \hfill';
1476: } elsif ($align eq 'right') {
1477: $pre=' \hfill \llap{'; $post='}';
1478: }
1.148 sakharuk 1479: $currentstring .= ' \vskip 0 mm \noindent\makebox['.$LaTeXwidth.']{'.$pre.'\makebox['.
1.124 sakharuk 1480: $LaTeXwidth.'][b]{\hrulefill}'.$post.'}\vskip 0 mm ';
1.122 albertel 1481: }
1482: return $currentstring;
1483: }
1484:
1485: sub end_hr {
1486: my ($target,$token) = @_;
1487: my $currentstring = '';
1.325 albertel 1488: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1489: $currentstring .= $token->[2];
1.148 sakharuk 1490: }
1.122 albertel 1491: return $currentstring;
1492: }
1493:
1.181 sakharuk 1494: #-- <div> tag (end tag required)
1.280 foxr 1495: {
1496:
1497: # Since div can be nested, the stack below is used
1498: # in 'tex' mode to store the ending strings
1499: # for the div stack.
1500:
1501: my @div_end_stack;
1502:
1.122 albertel 1503: sub start_div {
1.280 foxr 1504: my ($target,$token, $tagstack, $parstack, $parser, $safeeval) = @_;
1.279 foxr 1505: my $currentstring = &end_p(); # Close enclosing para.
1.325 albertel 1506: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1507: $currentstring .= $token->[4];
1508: }
1.280 foxr 1509: if ($target eq 'tex') {
1510: # 4 possible alignments: left, right, center, and -missing-.
1511:
1512: my $endstring = '';
1513:
1514: my $align = lc(&Apache::lonxml::get_param('align', $parstack,
1515: $safeeval, undef, 1));
1516: if ($align eq 'center') {
1517: $currentstring .= '\begin{center}';
1518: $endstring = '\end{center}';
1.309 albertel 1519: if (&is_inside_of($tagstack, "table")) {
1520: $currentstring = ¢er_correction().$currentstring;
1521: }
1.280 foxr 1522: }
1523: elsif ($align eq 'right') {
1524: $currentstring .= '\begin{flushright}';
1525: $endstring .= '\end{flushright}';
1526: } elsif ($align eq 'left') {
1527: $currentstring .= '\begin{flushleft}';
1528: $endstring = '\end{flushleft}';
1529: } else {
1530:
1531: }
1532: $currentstring .= "\n"; # For human readability.
1533: $endstring = "\n$endstring\n"; # For human readability
1534: push(@div_end_stack, $endstring);
1535: }
1.122 albertel 1536: return $currentstring;
1537: }
1538:
1539: sub end_div {
1540: my ($target,$token) = @_;
1541: my $currentstring = '';
1.325 albertel 1542: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1543: $currentstring .= $token->[2];
1.280 foxr 1544: }
1545: if ($target eq 'tex') {
1546: my $endstring = pop @div_end_stack;
1547: $currentstring .= $endstring;
1548: }
1.122 albertel 1549: return $currentstring;
1550: }
1.280 foxr 1551: }
1.122 albertel 1552:
1.181 sakharuk 1553: #-- <a> tag (end tag required)
1.122 albertel 1554: sub start_a {
1.149 sakharuk 1555: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1556: my $currentstring = '';
1.325 albertel 1557: if ($target eq 'web' || $target eq 'webgrade') {
1.250 albertel 1558: my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
1559: undef,1);
1560: $currentstring=&Apache::lonenc::encrypt_ref($token,{'href'=>$href});
1.122 albertel 1561: } elsif ($target eq 'tex') {
1.149 sakharuk 1562: my $a=&Apache::lonxml::get_param('href',$parstack,$safeeval,undef,1);
1.161 sakharuk 1563: my $b=&Apache::lonxml::get_param('name',$parstack,$safeeval,undef,1);
1564: if ($a=~/\S/) {
1565: $a=~s/([^\\])%/$1\\\%/g;
1566: $currentstring .= '\ref{URI: '.$a.'}';
1567: } elsif ($b=~/\S/) {
1568: $currentstring .= '\ref{Anchor: '.$b.'}';
1569: } else {
1570: $currentstring.='';
1571: }
1.122 albertel 1572: }
1573: return $currentstring;
1574: }
1575:
1576: sub end_a {
1.168 albertel 1577: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1578: my $currentstring = '';
1.325 albertel 1579: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1580: $currentstring .= $token->[2];
1581: }
1582: return $currentstring;
1583: }
1584:
1.181 sakharuk 1585: #-- <li> tag (end tag optional)
1.122 albertel 1586: sub start_li {
1.168 albertel 1587: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1588: my $currentstring = '';
1.325 albertel 1589: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1590: $currentstring = $token->[4];
1591: } elsif ($target eq 'tex') {
1.237 sakharuk 1592: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1593: my $value=&Apache::lonxml::get_param('value',$parstack,$safeeval,undef,0);
1.238 albertel 1594: #FIXME need to support types i and I
1595: if ($type=~/disc/) {
1596: $currentstring .= ' \item[$\bullet$] ';
1597: } elsif ($type=~/circle/) {
1598: $currentstring .= ' \item[$\circ$] ';
1.146 sakharuk 1599: } elsif ($type=~/square/) {
1.238 albertel 1600: $currentstring .= ' \item[$\diamond$] ';
1601: } elsif ($type eq '1') {
1602: $currentstring .= ' \item['.($Apache::londefdef::list_index+1).'.]';
1.237 sakharuk 1603: } elsif ($type eq 'A') {
1.238 albertel 1604: $currentstring .= ' \item['.('A'..'Z')[$Apache::londefdef::list_index].'.]';
1.237 sakharuk 1605: } elsif ($type eq 'a') {
1.238 albertel 1606: $currentstring .= ' \item['.('a'..'z')[$Apache::londefdef::list_index].'.]';
1.237 sakharuk 1607: } elsif ($value ne '') {
1608: $currentstring .= ' \item['.$value.'] ';
1.122 albertel 1609: } else {
1.146 sakharuk 1610: $currentstring .= ' \item ';
1.122 albertel 1611: }
1.238 albertel 1612: $Apache::londefdef::list_index++;
1613: }
1.122 albertel 1614: return $currentstring;
1615: }
1616:
1617: sub end_li {
1618: my ($target,$token) = @_;
1.279 foxr 1619: my $currentstring = &end_p(); # In case there's a <p> in the <li>
1.325 albertel 1620: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1621: $currentstring .= $token->[2];
1.122 albertel 1622: }
1623: return $currentstring;
1624: }
1625:
1.181 sakharuk 1626: #-- <u> tag (end tag required)
1.122 albertel 1627: sub start_u {
1628: my ($target,$token) = @_;
1629: my $currentstring = '';
1.325 albertel 1630: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1631: $currentstring .= $token->[4];
1632: } elsif ($target eq 'tex') {
1633: &Apache::lonxml::startredirection();
1634: }
1635: return $currentstring;
1636: }
1637:
1638: sub end_u {
1639: my ($target,$token) = @_;
1640: my $currentstring = '';
1.325 albertel 1641: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1642: $currentstring .= $token->[2];
1643: } elsif ($target eq 'tex') {
1644: $currentstring=&Apache::lonxml::endredirection();
1645: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1646: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1647: $currentstring=~s/(\S)\s*$/$1\}/;
1648: }
1649: return $currentstring;
1650: }
1651:
1.181 sakharuk 1652: #-- <ul> tag (end tag required)
1.122 albertel 1653: sub start_ul {
1.125 sakharuk 1654: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1655: my $currentstring = &end_p(); # Close off enclosing list.
1.325 albertel 1656: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1657: $currentstring .= $token->[4];
1.122 albertel 1658: } elsif ($target eq 'tex') {
1.125 sakharuk 1659: my $TeXtype=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1.238 albertel 1660: $Apache::londefdef::list_index=0;
1.125 sakharuk 1661: if ($TeXtype eq 'disc') {
1.222 sakharuk 1662: $currentstring .= '\renewcommand{\labelitemi}{$\bullet$}'.
1663: '\renewcommand{\labelitemii}{$\bullet$}'.
1664: '\renewcommand{\labelitemiii}{$\bullet$}'.
1665: '\renewcommand{\labelitemiv}{$\bullet$}';
1.125 sakharuk 1666: } elsif ($TeXtype eq 'circle') {
1.222 sakharuk 1667: $currentstring .= '\renewcommand{\labelitemi}{$\circ$}'.
1668: '\renewcommand{\labelitemii}{$\circ$}'.
1669: '\renewcommand{\labelitemiii}{$\circ$}'.
1670: '\renewcommand{\labelitemiv}{$\circ$}';
1.125 sakharuk 1671: } elsif ($TeXtype eq 'square') {
1.222 sakharuk 1672: $currentstring .= '\renewcommand{\labelitemi}{$\diamond$}'.
1673: '\renewcommand{\labelitemii}{$\diamond$}'.
1674: '\renewcommand{\labelitemiii}{$\diamond$}'.
1675: '\renewcommand{\labelitemiv}{$\diamond$}';
1.125 sakharuk 1676: }
1.222 sakharuk 1677: $currentstring .= '\strut \begin{itemize}';
1.122 albertel 1678: }
1679: return $currentstring;
1680: }
1681:
1682: sub end_ul {
1683: my ($target,$token) = @_;
1684: my $currentstring = '';
1.325 albertel 1685: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1686: $currentstring = $token->[2];
1687: } elsif ($target eq 'tex') {
1.222 sakharuk 1688: $currentstring = '\end{itemize} \renewcommand{\labelitemi}{$\bullet$}'.
1689: '\renewcommand{\labelitemii}{$\bullet$}'.
1690: '\renewcommand{\labelitemiii}{$\bullet$}'.
1691: '\renewcommand{\labelitemiv}{$\bullet$}\strut ';
1.122 albertel 1692: }
1693: return $currentstring;
1694: }
1695:
1.181 sakharuk 1696: #-- <menu> tag (end tag required)
1.122 albertel 1697: sub start_menu {
1698: my ($target,$token) = @_;
1699: my $currentstring = '';
1.325 albertel 1700: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1701: $currentstring = $token->[4];
1702: } elsif ($target eq 'tex') {
1703: $currentstring = " \\begin{itemize} ";
1704: }
1705: return $currentstring;
1706: }
1707:
1708: sub end_menu {
1709: my ($target,$token) = @_;
1710: my $currentstring = '';
1.325 albertel 1711: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1712: $currentstring = $token->[2];
1713: } elsif ($target eq 'tex') {
1714: $currentstring = " \\end{itemize}";
1715: }
1716: return $currentstring;
1717: }
1718:
1.181 sakharuk 1719: #-- <dir> tag (end tag required)
1.122 albertel 1720: sub start_dir {
1721: my ($target,$token) = @_;
1.279 foxr 1722: my $currentstring = &end_p(); # In case there's a <p> prior to the list.
1.325 albertel 1723: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1724: $currentstring .= $token->[4];
1.122 albertel 1725: } elsif ($target eq 'tex') {
1.277 foxr 1726: $currentstring .= " \\begin{itemize} ";
1.122 albertel 1727: }
1728: return $currentstring;
1729: }
1730:
1731: sub end_dir {
1732: my ($target,$token) = @_;
1733: my $currentstring = '';
1.325 albertel 1734: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1735: $currentstring = $token->[2];
1736: } elsif ($target eq 'tex') {
1737: $currentstring = " \\end{itemize}";
1738: }
1739: return $currentstring;
1740: }
1741:
1.181 sakharuk 1742: #-- <ol> tag (end tag required)
1.122 albertel 1743: sub start_ol {
1.125 sakharuk 1744: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1745: my $currentstring = &end_p(); # In case there's a <p> prior to the list.
1.325 albertel 1746: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1747: $currentstring .= $token->[4];
1.122 albertel 1748: } elsif ($target eq 'tex') {
1.238 albertel 1749: $Apache::londefdef::list_index=0;
1.125 sakharuk 1750: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1751: if ($type eq '1') {
1.222 sakharuk 1752: $currentstring .= '\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1753: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1754: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1755: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}';
1.125 sakharuk 1756: } elsif ($type eq 'A') {
1.222 sakharuk 1757: $currentstring .= '\renewcommand{\labelenumi}{\Alph{enumi}.}'.
1758: '\renewcommand{\labelenumii}{\Alph{enumii}.}'.
1759: '\renewcommand{\labelenumiii}{\Alph{enumiii}.}'.
1760: '\renewcommand{\labelenumiv}{\Alph{enumiv}.}';
1.125 sakharuk 1761: } elsif ($type eq 'a') {
1.222 sakharuk 1762: $currentstring .= '\renewcommand{\labelenumi}{\alph{enumi}.}'.
1763: '\renewcommand{\labelenumii}{\alph{enumii}.}'.
1764: '\renewcommand{\labelenumiii}{\alph{enumiii}.}'.
1765: '\renewcommand{\labelenumiv}{\alph{enumiv}.}';
1.125 sakharuk 1766: } elsif ($type eq 'i') {
1.222 sakharuk 1767: $currentstring .= '\renewcommand{\labelenumi}{\roman{enumi}.}'.
1768: '\renewcommand{\labelenumii}{\roman{enumii}.}'.
1769: '\renewcommand{\labelenumiii}{\roman{enumiii}.}'.
1770: '\renewcommand{\labelenumiv}{\roman{enumiv}.}';
1.125 sakharuk 1771: } elsif ($type eq 'I') {
1.222 sakharuk 1772: $currentstring .= '\renewcommand{\labelenumi}{\Roman{enumi}.}'.
1773: '\renewcommand{\labelenumii}{\Roman{enumii}.}'.
1774: '\renewcommand{\labelenumiii}{\Roman{enumiii}.}'.
1775: '\renewcommand{\labelenumiv}{\Roman{enumiv}.}';
1.125 sakharuk 1776: }
1.222 sakharuk 1777: $currentstring .= '\strut \begin{enumerate}';
1.122 albertel 1778: }
1779: return $currentstring;
1780: }
1781:
1782: sub end_ol {
1783: my ($target,$token) = @_;
1784: my $currentstring = '';
1.325 albertel 1785: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1786: $currentstring = $token->[2];
1787: } elsif ($target eq 'tex') {
1.222 sakharuk 1788: $currentstring = '\end{enumerate}\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1789: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1790: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1791: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}\strut ';
1.122 albertel 1792: }
1793: return $currentstring;
1794: }
1795:
1.181 sakharuk 1796: #-- <dl> tag (end tag required)
1.122 albertel 1797: sub start_dl {
1798: my ($target,$token) = @_;
1.279 foxr 1799: my $currentstring = &end_p(); # In case there's a <p> unclosed prior to the list.
1.325 albertel 1800: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1801: $currentstring .= $token->[4];
1.122 albertel 1802: } elsif ($target eq 'tex') {
1.277 foxr 1803: $currentstring .= '\begin{description}';
1.243 albertel 1804: $Apache::londefdef::DL++;
1805: push(@Apache::londefdef::description,[]);
1806: $Apache::londefdef::DD[$Apache::londefdef::DL]=0;
1807: $Apache::londefdef::DT[$Apache::londefdef::DL]=0;
1.244 albertel 1808: $Apache::londefdef::seenDT[$Apache::londefdef::DL]=0;
1.122 albertel 1809: }
1810: return $currentstring;
1811: }
1812:
1813: sub end_dl {
1.174 sakharuk 1814: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1815: my $currentstring = '';
1.325 albertel 1816: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1817: $currentstring = $token->[2];
1818: } elsif ($target eq 'tex') {
1.243 albertel 1819: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1820: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
1821: foreach my $element (@{$Apache::londefdef::description[-1]}) {
1.174 sakharuk 1822: $currentstring.=' '.$element.' ';
1823: }
1.243 albertel 1824: pop(@Apache::londefdef::description);
1.174 sakharuk 1825: $currentstring.='\end{description}';
1.243 albertel 1826: delete($Apache::londefdef::DD[$Apache::londefdef::DL]);
1827: delete($Apache::londefdef::DT[$Apache::londefdef::DL]);
1.244 albertel 1828: delete($Apache::londefdef::seenDT[$Apache::londefdef::DL]);
1.243 albertel 1829: $Apache::londefdef::DL--;
1.122 albertel 1830: }
1831: return $currentstring;
1832: }
1833:
1.172 sakharuk 1834: #-- <dt> tag (end tag optional)
1.122 albertel 1835: sub start_dt {
1.172 sakharuk 1836: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1837: my $currentstring='';
1.325 albertel 1838: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1839: $currentstring = $token->[4];
1840: } elsif ($target eq 'tex') {
1.243 albertel 1841: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1842: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
1.174 sakharuk 1843: &Apache::lonxml::startredirection();
1.243 albertel 1844: $Apache::londefdef::DT[-1]++;
1.244 albertel 1845: $Apache::londefdef::seenDT[-1]=1;
1.122 albertel 1846: }
1847: return $currentstring;
1848: }
1849:
1850: sub end_dt {
1.172 sakharuk 1851: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1852: my $currentstring = '';
1.325 albertel 1853: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1854: $currentstring = $token->[2];
1855: } elsif ($target eq 'tex') {
1.243 albertel 1856: if ($Apache::londefdef::DT[-1]) {
1857: my $data=&item_cleanup();
1.244 albertel 1858: push(@{$Apache::londefdef::description[-1]},'\item['.$data.'] \strut \vskip 0mm');
1.243 albertel 1859: $Apache::londefdef::DT[-1]--;
1860: }
1.122 albertel 1861: }
1862: return $currentstring;
1863: }
1864:
1.173 sakharuk 1865: sub item_cleanup {
1.174 sakharuk 1866: my $item=&Apache::lonxml::endredirection();
1.173 sakharuk 1867: $item=~s/\\begin{center}//g;
1868: $item=~s/\\end{center}//g;
1869: return $item;
1870: }
1871:
1.181 sakharuk 1872: #-- <dd> tag (end tag optional)
1.122 albertel 1873: sub start_dd {
1.147 sakharuk 1874: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1875: my $currentstring = '';
1.325 albertel 1876: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1877: $currentstring = $token->[4];
1.147 sakharuk 1878: } elsif ($target eq 'tex') {
1.243 albertel 1879: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1880: if ($Apache::londefdef::DD[-1]) { &end_dd(@_);}
1.244 albertel 1881: if (!$Apache::londefdef::seenDT[-1]) {
1882: push(@{$Apache::londefdef::description[-1]},'\item[\strut] \strut \vskip 0mm ');
1883: }
1.243 albertel 1884: push(@{$Apache::londefdef::description[-1]},'');
1885: $Apache::londefdef::description[-1]->[-1].=' \strut ';
1886: $Apache::londefdef::DD[-1]++;
1.174 sakharuk 1887: &Apache::lonxml::startredirection();
1.122 albertel 1888: }
1889: return $currentstring;
1890: }
1891:
1892: sub end_dd {
1.174 sakharuk 1893: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1894: my $currentstring = '';
1.325 albertel 1895: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1896: $currentstring = $token->[2];
1.174 sakharuk 1897: } elsif ($target eq 'tex') {
1.243 albertel 1898: $Apache::londefdef::description[-1]->[-1].=
1899: &Apache::lonxml::endredirection().' \vskip 0mm ';
1900: $Apache::londefdef::DD[-1]--;
1.174 sakharuk 1901: }
1.122 albertel 1902: return $currentstring;
1903: }
1904:
1.181 sakharuk 1905: #-- <table> tag (end tag required)
1.277 foxr 1906: # <table> also ends any prior <p> that is not closed.
1907: # but, unless I allow <p>'s to nest, that's the
1908: # only way I could think of to allow <p> in
1909: # <tr> <th> bodies
1910: #
1.206 sakharuk 1911: #list of supported attributes: border,width,TeXwidth
1.91 sakharuk 1912: sub start_table {
1913: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 foxr 1914: my $textwidth = '';
1.279 foxr 1915: my $currentstring = &end_p();
1.325 albertel 1916: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1917: $currentstring .= $token->[4];
1.91 sakharuk 1918: } elsif ($target eq 'tex') {
1919: my $aa = {};
1920: push @Apache::londefdef::table, $aa;
1921: $Apache::londefdef::table[-1]{'row_number'} = -1;
1.222 sakharuk 1922: #maximum table's width (default coincides with text line length)
1.206 sakharuk 1923: if ($#Apache::londefdef::table==0) {
1.267 albertel 1924: $textwidth=&recalc($env{'form.textwidth'}); #result is always in mm
1.206 sakharuk 1925: $textwidth=~/(\d+\.?\d*)/;
1926: $textwidth=0.95*$1; #accounts "internal" LaTeX space for table frame
1927: } else {
1928: if ($Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}]=~/\d/) {
1929: #the maximum width of nested table is determined by LATeX width of parent cell
1930: $textwidth=$Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}];
1931: } else {
1932: #try to use all space not used before (minus 5% for LaTeX table internal) - rather silly
1.228 sakharuk 1933: $textwidth=$Apache::londefdef::table[-2]{'width'};
1.206 sakharuk 1934: for (my $i=0;$i<$Apache::londefdef::table[-2]{'counter_columns'};$i++) {
1935: $textwidth=$textwidth-$Apache::londefdef::table[-2]{'TeXlen'}[0][$i];
1936: }
1937: }
1938: }
1.294 foxr 1939:
1940: # width either comes forced from the TeXwidth or the width parameters.
1941: # in either case it can be a percentage or absolute width.
1.311 albertel 1942: # in the width case we ignore absolute width
1.126 sakharuk 1943: my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1.308 albertel 1944: if (!defined($TeXwidth)) {
1.311 albertel 1945: my $htmlwidth = &Apache::lonxml::get_param('width',$parstack,
1946: $safeeval,undef,1);
1947: if ($htmlwidth =~ /%/) {
1948: $TeXwidth = $htmlwidth;
1949: } else {
1950: $TeXwidth = $textwidth;
1951: }
1.294 foxr 1952: } else {
1953: $Apache::londefdef::table[-1]{'forcedtablewidth'} = 1;
1954: }
1955: if ($TeXwidth=~/%/) {
1.203 sakharuk 1956: $Apache::londefdef::table[-1]{'percent'}=1;
1.126 sakharuk 1957: $TeXwidth=~/(\d+)/;
1.206 sakharuk 1958: $Apache::londefdef::table[-1]{'width'}=$1*$textwidth/100;
1.126 sakharuk 1959: } else {
1.206 sakharuk 1960: $Apache::londefdef::table[-1]{'width'}=$TeXwidth;
1.316 foxr 1961: }
1962: # In the end, however the table width cannot be wider than $textwidth...
1963:
1964: if ($Apache::londefdef::table[-1]{'width'} > $textwidth) {
1965: $Apache::londefdef::table[-1]{'width'} = $textwidth;
1966: }
1.294 foxr 1967:
1.126 sakharuk 1968: #table's border
1.206 sakharuk 1969: my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval);
1.208 sakharuk 1970: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
1.91 sakharuk 1971: unless (defined $border) { $border = 0; }
1972: if ($border) {
1973: $Apache::londefdef::table[-1]{'hinc'} = '\hline ';
1974: $Apache::londefdef::table[-1]{'vinc'} = '&';
1975: $Apache::londefdef::table[-1]{'vvinc'} = '|';
1976: } else {
1977: $Apache::londefdef::table[-1]{'hinc'} = '';
1978: $Apache::londefdef::table[-1]{'vinc'} = '&';
1979: $Apache::londefdef::table[-1]{'vvinc'} = '';
1980: }
1.206 sakharuk 1981: if ($#Apache::londefdef::table==0) {
1.281 foxr 1982: # Note that \newline seems to destroy the alignment envs.
1983: # $Apache::londefdef::table[-1]{'output'}='\strut\newline\strut\setlength{\tabcolsep}{1 mm}';
1984: $Apache::londefdef::table[-1]{'output'}='\strut'.'\\\\'."\n".'\strut\setlength{\tabcolsep}{1 mm}';
1.206 sakharuk 1985: }
1986: $Apache::londefdef::table[-1]{'output'}.=' \noindent \begin{tabular} ';
1987: $Apache::londefdef::table[-1]{'TeXlen'}=[];
1988: $Apache::londefdef::table[-1]{'objectlen'}=[];
1.229 sakharuk 1989: $Apache::londefdef::table[-1]{'objectsignal'}=[];
1.206 sakharuk 1990: $Apache::londefdef::table[-1]{'maxlen'}=[];
1991: $Apache::londefdef::table[-1]{'minlen'}=[];
1992: $Apache::londefdef::table[-1]{'content'}=[];
1993: $Apache::londefdef::table[-1]{'align'}=[];
1.277 foxr 1994: $currentstring.='\keephidden{NEW TABLE ENTRY}';
1.295 foxr 1995:
1.294 foxr 1996:
1997: }
1.91 sakharuk 1998: return $currentstring;
1999: }
1.122 albertel 2000:
2001: sub end_table {
2002: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2003: my $currentstring = '';
1.325 albertel 2004: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2005: $currentstring = $token->[2];
2006: } elsif ($target eq 'tex') {
2007: my $inmemory = '';
2008: my $output = '';
1.206 sakharuk 2009: my $WARNING='';
2010: #width of columns from TeXwidth attributes
1.294 foxr 2011:
1.206 sakharuk 2012: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2013: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2014: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]<$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn]) {
2015: $Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]=$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn];
2016: }
2017: }
2018: }
2019: #free space and number of empty columns
2020: my ($available_space,$empty_columns)=($Apache::londefdef::table[-1]{'width'},0);
1.228 sakharuk 2021: if ($#Apache::londefdef::table ne 0) {$available_space=0.9*$available_space;}
1.206 sakharuk 2022: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2023: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]==0) {
2024: $empty_columns++;
2025: } else {
2026: $available_space=$available_space-$Apache::londefdef::table[-1]{'TeXlen'}[0][$jn];
2027: }
2028: }
2029: #boundaries for contents columns
2030: my @min_len=();#columns can not be narrower
2031: my @max_len=();#maximum length of column
2032: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2033: my ($localmin,$localmax)=(0,0);
2034: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2035: if ($localmin<$Apache::londefdef::table[-1]{'minlen'}[$in][$jn]) {
2036: $localmin=$Apache::londefdef::table[-1]{'minlen'}[$in][$jn];
2037: }
2038: if ($localmax<$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn]) {
2039: $localmax=$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn];
2040: }
2041: }
2042: push @min_len, $localmin;
2043: push @max_len, $localmax;
1.122 albertel 2044: }
1.206 sakharuk 2045: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2046: my $localmin=0,;
2047: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2048: if ($localmin<$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn]) {
2049: $localmin=$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn];
2050: }
2051: }
1.229 sakharuk 2052: if ($max_len[$jn]<$localmin) {
2053: $max_len[$jn]=$localmin;
2054: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
2055: }#object size is bigger
2056: if ($min_len[$jn]<$localmin) {
2057: $min_len[$jn]=$localmin;
2058: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
2059: }#object size is bigger
1.206 sakharuk 2060: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]!=0) {
2061: $min_len[$jn]=0;
2062: $max_len[$jn]=0;
2063: }
2064: }
2065: #final adjustment of column width
2066: my @fwidth=@{$Apache::londefdef::table[-1]{'TeXlen'}[0]};#final width array
2067: my @adjust=();
2068: #step 1. adjustment by maximum value
2069: my $space_neeeded=0;
2070: for (my $jn=0;$jn<=$#max_len;$jn++) {
2071: $space_neeeded=$space_neeeded+$max_len[$jn];
2072: }
2073: if ($space_neeeded<=$available_space) {
2074: for (my $jn=0;$jn<=$#max_len;$jn++) {
2075: if ($fwidth[$jn]==0) {
2076: $fwidth[$jn]=$max_len[$jn];
1.53 sakharuk 2077: }
1.51 sakharuk 2078: }
1.206 sakharuk 2079: } else {
2080: #step 2. adjustment by minimum value (estimation)
2081: $space_neeeded=0;
2082: for (my $jn=0;$jn<=$#min_len;$jn++) {
2083: $space_neeeded+=$min_len[$jn];
2084: }
2085: if ($space_neeeded>$available_space) {
2086: $WARNING=' \textbf{NOT ENOUGH SPACE FOR TABLE} ';
2087: for (my $jn=0;$jn<=$#max_len;$jn++) {
2088: if ($fwidth[$jn]==0) {
2089: $fwidth[$jn]=$min_len[$jn];
2090: }
2091: }
1.229 sakharuk 2092: #check if we have objects which can be scaled
2093: my $how_many_to_scale=0;
2094: my @to_scale=();
2095: for (my $jn=0;$jn<=$#max_len;$jn++) {
2096: if ($Apache::londefdef::table[-1]{'objectsignal'}[$jn] eq '1') {
2097: $how_many_to_scale++;
2098: push @to_scale, $jn;
2099: }
2100: }
2101: if ($how_many_to_scale>0) {
2102: my $space_to_adjust=($space_neeeded-$available_space)/$how_many_to_scale;
2103: foreach my $jn (@to_scale) {
2104: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2105: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/;
2106: if ($1 ne '') {
2107: my $current_length=&recalc($1);
2108: $current_length=~/(\d+\.?\d*)/;
2109: $current_length=$current_length-$space_to_adjust;
2110: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/width=$current_length mm/;
2111: }
2112: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/\[(\d+\.?\d*)\s*mm\]/;
2113: if ($1 ne '') {
2114: my $current_length=$1;
2115: $current_length=$current_length-$space_to_adjust;
2116: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/\[(\d+\.?\d*)\s*mm\]/\[$current_length mm\]/;
2117: }
2118: }
2119: $fwidth[$jn]=$fwidth[$jn]-$space_to_adjust;
2120: }
2121: }
1.206 sakharuk 2122: } else {
2123: #step 3. adjustment over minimal + corrections
2124: my $enlarge_coef=$available_space/$space_neeeded;
2125: my $acsessive=0;
2126: for (my $jn=0;$jn<=$#min_len;$jn++) {
2127: $adjust[$jn]=$min_len[$jn]*$enlarge_coef;
2128: if ($adjust[$jn]>$max_len[$jn]) {
2129: $fwidth[$jn]=$max_len[$jn];
2130: $acsessive=$acsessive+$adjust[$jn]-$max_len[$jn];
2131: $adjust[$jn]=0;
2132: }
2133: }
2134: if ($acsessive>0) {
2135: #we have an excess of space and can redistribute it
2136: my $notempty_columns=0;
2137: for (my $jn=0;$jn<=$#min_len;$jn++) {
2138: if ($adjust[$jn]!=0) {
2139: $notempty_columns++;
2140: }
2141: }
2142: my $per_column=$acsessive/$notempty_columns;
2143: for (my $jn=0;$jn<=$#min_len;$jn++) {
2144: if ($adjust[$jn]!=0) {
2145: $adjust[$jn]+=$per_column;
2146: $fwidth[$jn]=$adjust[$jn];
2147: }
1.223 sakharuk 2148: }
2149: } else {
2150: for (my $jn=0;$jn<=$#min_len;$jn++) {
2151: $fwidth[$jn]=$adjust[$jn];
1.206 sakharuk 2152: }
2153: }
1.203 sakharuk 2154: }
2155: }
1.222 sakharuk 2156: #use all available width if it is defined in % or as TeXwidth
2157: if (($Apache::londefdef::table[-1]{'percent'}==1) || ($Apache::londefdef::table[-1]{'forcetablewidth'}==1)) {
1.203 sakharuk 2158: my $current=0;
1.206 sakharuk 2159: for (my $i=0;$i<=$#fwidth;$i++) {
2160: $current+=$fwidth[$i];
1.203 sakharuk 2161: }
2162: my $coef=$Apache::londefdef::table[-1]{'width'}/$current;
1.206 sakharuk 2163: for (my $i=0;$i<=$#fwidth;$i++) {
2164: $fwidth[$i]*=$coef;
2165: }
2166: }
2167: #removing of empty columns if allowed
1.208 sakharuk 2168: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
1.206 sakharuk 2169: if ($permission eq 'yes') {
2170: my @cleaned_table=();
2171: my @cleaned_header=();
2172: my $colind=0;
2173: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2174: if ($fwidth[$jn]!=0) {
2175: #we need to copy column
2176: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2177: $cleaned_table[$in][$colind]=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
2178: $cleaned_header[$colind]=$fwidth[$jn];
2179: }
2180: $colind++;
2181: }
1.122 albertel 2182: }
1.206 sakharuk 2183: $Apache::londefdef::table[-1]{'content'}=\@cleaned_table;
2184: @fwidth=@cleaned_header;
1.122 albertel 2185: }
1.206 sakharuk 2186: #construct header of the table
2187: my $header_of_table = '{'.$Apache::londefdef::table[-1]{'vvinc'};
2188: for (my $in=0;$in<=$#fwidth;$in++) {
2189: $header_of_table.='p{'.$fwidth[$in].' mm}'.$Apache::londefdef::table[-1]{'vvinc'};
2190: }
2191: $header_of_table .= '}';
1.126 sakharuk 2192: #fill the table
2193: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1.306 foxr 2194: my $have_rowspan = 0;
1.206 sakharuk 2195: for (my $jn=0;$jn<=$#fwidth;$jn++) {
1.320 foxr 2196:
2197: #-----------------------------------------------------------
2198: # I think this order of doing things will ensure that
2199: # single rowspan, columspan and combined row/colspans will
2200: # work correctly. LaTeX is delicate here.
2201: # RF.
2202:
2203: # Start a rowspan if necessary:
2204:
2205: my $rowspan = $Apache::londefdef::table[-1]{'rowspan'}[$in][$jn];
2206: my $colspan = $Apache::londefdef::table[-1]{'colspan'}[$in][$jn];
1.304 foxr 2207: #
2208: # Do the appropriate magic if this has a colspan
2209: #
1.320 foxr 2210:
1.304 foxr 2211: if ($colspan > 1) {
1.336 foxr 2212: my $spanwidth = 0;
2213: for (my $spancol = $jn; $spancol < $jn + $colspan; $spancol++) {
2214: $spanwidth += $fwidth[$spancol];
2215: }
1.304 foxr 2216: $output .= '\multicolumn{'.
2217: $colspan
1.337 foxr 2218: ."}";
2219: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
2220: $output .= '{|c|}{';
2221: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
2222: $output .= '{|r|}{';
2223: }
2224: else {
2225: $output .= "{|p{$spanwidth mm}|}{";
2226: }
2227:
1.304 foxr 2228: }
1.306 foxr 2229:
1.337 foxr 2230: # Rowspan... if colspan is 1, and there's an alignment we'll need
2231: # to kick in a multicolumn in order to get the alignment spec.
2232: # this must precede the multirow or LaTex gets quite upset.
2233: # Naturally if colspan > 1 we've already done that above ^
2234: #
2235: my $multirow_aligned = 0;
1.306 foxr 2236: if ($rowspan > 1) {
1.337 foxr 2237: if ($colspan == 1) {
2238: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
2239: $output .= '\multicolumn{1}{|c|}{';
2240: $multirow_aligned = 1;
2241: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
2242: $output .= '\multicolumn{1}{|r|}{';
2243: $multirow_aligned = 1;
2244: }
2245: }
1.306 foxr 2246: $have_rowspan++;
1.337 foxr 2247: $output .= '\multirow{'.$rowspan.'}[0]{*}{';
2248: #
2249: # If we did not throw in a multicolumn to align, then add
2250: # an extra {
2251: # so we close correctly without having to keep additional state
2252: # around
2253: #
2254: if (!$multirow_aligned) {
2255: $output .= '{';
2256: }
1.306 foxr 2257: }
2258: if (($rowspan eq '^') || ($rowspan eq '_')) {
2259: $have_rowspan++;
2260: }
1.320 foxr 2261: #--------------------------------------------------------------
1.306 foxr 2262:
1.337 foxr 2263:
2264: # For right and center alignment of single cells.
2265: # we are going to use a multicolumn with a span of 1 to specify alignment.
2266: #
2267: if ($colspan == 1 && $rowspan == 1) {
2268: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
2269: $output .= '\multicolumn{1}{|c|}{';
2270: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
2271: $output .= '\multicolumn{1}{|r|}{';
2272: }
1.206 sakharuk 2273: }
1.337 foxr 2274:
1.206 sakharuk 2275: $output.=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
1.337 foxr 2276:
2277: if (($colspan == 1 && $rowspan == 1) &&
2278: (($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') ||
2279: ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r'))) {
2280: $output .= '}';
1.206 sakharuk 2281: }
1.337 foxr 2282:
1.306 foxr 2283: # Close off any open multirow:
2284:
2285: if ($rowspan > 1) {
1.337 foxr 2286: $output .= '}}';
1.306 foxr 2287: }
1.304 foxr 2288: # Close off the colspan...
2289: #
2290: if ($colspan > 1) {
2291: $output .= '}';
2292: $jn += $colspan-1; # Adjust for number of rows really left.
2293: }
1.206 sakharuk 2294: if ($jn!=$#fwidth) {$output.=' '.$Apache::londefdef::table[-1]{'vinc'};}
2295: }
1.306 foxr 2296: # If have_rowspan > 0, and borders are on, then
2297: # we need to do more than put an \hline at the bottom of row.
2298: # we need to do the appropriate \cline to ensure that
2299: # the spanned rows don't have \hlines through them.
2300:
2301: if (($Apache::londefdef::table[-1]{'hinc'} =~ /\\hline/) && $have_rowspan) {
2302: $output .= ' \\\\ ';
2303: for (my $jn=0; $jn<=$#fwidth;$jn++) {
2304: my $rowspan = $Apache::londefdef::table[-1]{'rowspan'}[$in][$jn];
1.320 foxr 2305: if ($rowspan ne "^") {
2306: if (($rowspan <= 1) || ($rowspan eq '_')) {
2307: my $column = $jn+1;
2308: $output .= '\cline{'.$column.'-'.$column.'} ';
2309: }
1.306 foxr 2310: }
2311: }
2312:
2313: } else {
2314: $output.=' \\\\ '.$Apache::londefdef::table[-1]{'hinc'}.' ';
2315: }
1.122 albertel 2316: }
1.281 foxr 2317: # Note that \newline destroys alignment env's produced by e.g. <div>
2318: # $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut\newline\strut ';
2319: $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut'.'\\\\'."\n".'\strut ';
1.127 sakharuk 2320: if ($#Apache::londefdef::table > 0) {
2321: my $inmemory = $Apache::londefdef::table[-1]{'output'};
1.294 foxr 2322: # Figure out max/and min width by summing us and then
2323: # apply that to the current column of the table we nest in
2324: # if it's larger than the current width or the current width
2325: # is undefined.
2326: #
2327: my $min_nested_width = 0;
2328: my $max_nested_width = 0;
2329: for (my $col = 0; $col <= $Apache::londefdef::table[-1]{'counter_columns'}; $col++) {
2330: $min_nested_width += $min_len[$col];
2331: $max_nested_width += $max_len[$col];
1.300 foxr 2332:
1.294 foxr 2333: }
2334: # Fudge in an extra 5 mm for borders etc:
2335:
2336: $min_nested_width += 5;
2337: $max_nested_width += 5;
2338:
2339: my $outer_column = $Apache::londefdef::table[-2]{'counter_columns'};
2340: my $outer_row = $Apache::londefdef::table[-2]{'row_number'};
2341: if ($min_nested_width > $Apache::londefdef::table[-2]{'minlen'}[$outer_row][$outer_column]) {
2342: $Apache::londefdef::table[-2]{'minlen'}[$outer_row][$outer_column] = $min_nested_width;
2343: }
2344: if ($max_nested_width > $Apache::londefdef::table[-2]{'maxlen'}[$outer_row][$outer_column]) {
2345: $Apache::londefdef::table[-2]{'maxlen'}[$outer_row][$outer_column] = $max_nested_width;
2346: }
2347:
1.127 sakharuk 2348: pop @Apache::londefdef::table;
1.129 sakharuk 2349: push @{$Apache::londefdef::table[-1]{'include'}}, $inmemory;
1.127 sakharuk 2350: } else {
2351: $currentstring .= $Apache::londefdef::table[-1]{'output'};
2352: pop @Apache::londefdef::table;
1.143 sakharuk 2353: undef @Apache::londefdef::table;
1.127 sakharuk 2354: }
1.122 albertel 2355: }
2356: return $currentstring;
2357: }
2358:
1.166 sakharuk 2359: #-- <tr> tag (end tag optional)
1.122 albertel 2360: sub start_tr {
2361: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2362: my $currentstring = '';
1.325 albertel 2363: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2364: $currentstring = $token->[4];
2365: } elsif ($target eq 'tex') {
2366: $Apache::londefdef::table[-1]{'row_number'}++;
1.206 sakharuk 2367: my $alignchar=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.122 albertel 2368: if ($alignchar ne '') {
1.206 sakharuk 2369: push @ {$Apache::londefdef::table[-1]{'rows'} },substr($alignchar,0,1);
1.122 albertel 2370: } else {
2371: push @ {$Apache::londefdef::table[-1]{'rows'} }, 'l';
2372: }
2373: push ( @{ $Apache::londefdef::table[-1]{'rowdata'} }, $Apache::londefdef::table[-1]{'hinc'});
1.300 foxr 2374: #
2375: # Need to save the number of table columns to preserve the max # columns.
2376: #
2377: $Apache::londefdef::table[-1]{'prior_columns'} = $Apache::londefdef::table[-1]{'counter_columns'};
1.122 albertel 2378: $Apache::londefdef::table[-1]{'counter_columns'} = -1;
1.206 sakharuk 2379: push @ {$Apache::londefdef::table[-1]{'TeXlen'}}, [];
2380: push @ {$Apache::londefdef::table[-1]{'objectlen'}}, [];
2381: push @ {$Apache::londefdef::table[-1]{'minlen'}}, [];
2382: push @ {$Apache::londefdef::table[-1]{'maxlen'}}, [];
2383: push @ {$Apache::londefdef::table[-1]{'content'}}, [];
1.122 albertel 2384: }
2385: return $currentstring;
2386: }
2387:
2388: sub end_tr {
1.160 sakharuk 2389: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 2390: my $currentstring = &end_p(); # Close any pending <p> in the row.
1.325 albertel 2391: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 2392: $currentstring .= $token->[2];
1.122 albertel 2393: } elsif ($target eq 'tex') {
1.160 sakharuk 2394: if ($Apache::londefdef::TD_redirection) {
2395: &end_td_tex($parstack,$parser,$safeeval);
2396: }
1.300 foxr 2397: # Counter columns must be the maximum number of columns seen
2398: # in the table so far so:
2399: if ($Apache::londefdef::table[-1]{'prior_columns'} > $Apache::londefdef::table[-1]{'counter_columns'}) {
2400: $Apache::londefdef::table[-1]{'counter_columns'} = $Apache::londefdef::table[-1]{'prior_columns'};
2401: }
1.295 foxr 2402:
2403:
1.294 foxr 2404:
1.122 albertel 2405: }
2406: return $currentstring;
2407: }
2408:
1.166 sakharuk 2409: #-- <td> tag (end tag optional)
1.122 albertel 2410: sub start_td {
2411: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2412: my $currentstring = '';
1.325 albertel 2413: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2414: $currentstring = $token->[4];
2415: } elsif ($target eq 'tex') {
1.160 sakharuk 2416: $Apache::londefdef::TD_redirection = 1;
1.159 sakharuk 2417: &tag_check('tr','td',$tagstack,$parstack,$parser,$safeeval);
1.122 albertel 2418: }
2419: return $currentstring;
2420: }
1.159 sakharuk 2421:
2422: sub tag_check {
2423: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
1.160 sakharuk 2424: my @ar=@$parstack;
2425: for (my $i=$#ar-1;$i>=0;$i--) {
2426: if (lc($$tagstack[$i]) eq $good_tag) {
2427: &start_td_tex($parstack,$parser,$safeeval);
2428: last;
2429: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2430: splice @ar, $i+1;
2431: &end_td_tex(\@ar,$parser,$safeeval);
2432: &start_td_tex($parstack,$parser,$safeeval);
2433: last;
1.159 sakharuk 2434: }
1.160 sakharuk 2435: }
1.159 sakharuk 2436: return '';
2437: }
2438:
2439: sub start_td_tex {
2440: my ($parstack,$parser,$safeeval) = @_;
1.206 sakharuk 2441: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2442: if ($alignchar eq '') {
2443: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
1.159 sakharuk 2444: }
1.206 sakharuk 2445: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
1.159 sakharuk 2446: $Apache::londefdef::table[-1]{'counter_columns'}++;
1.206 sakharuk 2447: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2448: if (defined $TeXwidth) {
2449: my $current_length=&recalc($TeXwidth);
2450: $current_length=~/(\d+\.?\d*)/;
2451: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2452: }
1.159 sakharuk 2453: &Apache::lonxml::startredirection();
2454: return '';
2455: }
2456:
2457: sub end_td_tex {
2458: my ($parstack,$parser,$safeeval) = @_;
1.304 foxr 2459: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2460: my $current_column = $Apache::londefdef::table[-1]{'counter_columns'};
1.303 foxr 2461: my $data = &Apache::lonxml::endredirection();
2462:
1.305 foxr 2463: # The rowspan array of the table indicates which cells are part of a span.
2464: # n indicates the start of a span set of n rows.
2465: # ^ indicates a cell that continues a span set.
1.306 foxr 2466: # _ indicates the cell is at the bottom of a span set.
1.305 foxr 2467: # If this and subsequent cells are part of a rowspan, we must
2468: # push along the row until we find one that is not.
2469:
2470: while ((defined $Apache::londefdef::table[-1]{'rowspan'}[$current_row] [$current_column])
1.306 foxr 2471: && ($Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column] =~ /[\^\_]/)) {
1.305 foxr 2472: # Part of a span.
2473: push @ {$Apache::londefdef::table[-1]{'content'}[-1]}, '';
2474: $current_column++;
2475: }
2476: $Apache::londefdef::table[-1]{'counter_columns'} = $current_column;
2477:
2478:
1.320 foxr 2479: # Get the column and row spans.
2480: # Colspan can be done via \multicolumn if I can figure out the data structs.
2481:
2482: my $colspan = &Apache::lonxml::get_param('colspan', $parstack, $safeeval, undef, 0);
2483: if (!$colspan) {
2484: $colspan = 1;
2485: }
1.305 foxr 2486:
2487: my $rowspan = &Apache::lonxml::get_param('rowspan', $parstack, $safeeval, undef, 0);
2488: if (!$rowspan) {
2489: $rowspan = 1;
2490: }
2491:
1.303 foxr 2492:
1.305 foxr 2493:
1.320 foxr 2494: for (my $c = 0; $c < $colspan; $c++) {
2495: $Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column+$c] = $rowspan;
2496: for (my $i = 1; $i < $rowspan; $i++) {
2497: $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column+$c] = '^';
2498: if ($i == ($rowspan-1)) {
2499: $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column+$c] = '_';
2500: }
1.306 foxr 2501: }
1.305 foxr 2502: }
1.304 foxr 2503:
1.159 sakharuk 2504: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2505: if (defined $TeXwidth) {
1.206 sakharuk 2506: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2507: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2508: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
1.159 sakharuk 2509: } else {
1.206 sakharuk 2510: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2511: my $garbage_data=$data;
2512: my $fwidth=0;
2513: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2514: my $current_length=&recalc($1);
2515: $current_length=~/(\d+\.?\d*)/;
2516: if ($fwidth<$1) {$fwidth=$1;}
2517: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2518: }
2519: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2520: my $current_length=$1;
2521: if ($fwidth<$current_length) {$fwidth=$current_length;}
2522: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2523: }
2524: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2525: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2526: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2527: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
1.231 sakharuk 2528: } elsif ($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)*/) {
2529: my $garbage_data=$data;
2530: my $fwidth=0;
2531: while ($garbage_data=~/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)\s*\}/) {
2532: my $current_length=&recalc($1);
2533: $current_length=~/(\d+\.?\d*)/;
2534: if ($fwidth<$1) {$fwidth=$1;}
2535: $garbage_data=~s/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2536: }
2537: while ($garbage_data=~/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2538: my $current_length=&recalc($1);
2539: $current_length=~/(\d+\.?\d*)/;
2540: if ($fwidth<$1) {$fwidth=$1;}
2541: $garbage_data=~s/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2542: }
2543: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2544: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2545: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2546: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2547: $data=~s/\\\\\s*$//;
1.159 sakharuk 2548: } else {
1.166 sakharuk 2549: $data=~s/^\s+(\S.*)/$1/;
1.159 sakharuk 2550: $data=~s/(.*\S)\s+$/$1/;
1.166 sakharuk 2551: $data=~s/(\s)+/$1/;
1.206 sakharuk 2552: my ($current_length,$min_length)=(0,0);
1.166 sakharuk 2553: if ($data=~/\\vskip/) {
2554: my $newdata=$data;
2555: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2556: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2557: foreach my $elementdata (@newdata) {
1.206 sakharuk 2558: my $lengthnewdata=2.5*&LATEX_length($elementdata);
1.166 sakharuk 2559: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
1.206 sakharuk 2560: my @words=split(/ /,$elementdata);
2561: foreach my $word (@words) {
2562: my $lengthword=2.5*&LATEX_length($word);
2563: if ($min_length<$lengthword) {$min_length=$lengthword;}
2564: }
1.166 sakharuk 2565: }
2566: } else {
1.206 sakharuk 2567: $current_length=2.5*&LATEX_length($data);
2568: my @words=split(/ /,$data);
2569: foreach my $word (@words) {
1.228 sakharuk 2570: my $lengthword=2*&LATEX_length($word);
1.206 sakharuk 2571: if ($min_length<$lengthword) {$min_length=$lengthword;}
2572: }
1.166 sakharuk 2573: }
1.206 sakharuk 2574: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2575: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2576: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2577: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
1.159 sakharuk 2578: }
2579: }
1.302 foxr 2580: # Substitute all of the tables nested in this cell in their appropriate places.
2581:
2582:
2583: my $nested_count = $#{$Apache::londefdef::table[-1]{'include'}}; # This one is constant...
2584: for (my $in=0; $in<=$nested_count; $in++) {
1.301 foxr 2585: my $nested = shift @{$Apache::londefdef::table[-1]{'include'}};
2586: $nested =~ s/\\end\{tabular\}\\strut\\\\/\\end\{tabular\}/;
2587: # $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2588: $data =~ s/\\keephidden\{NEW TABLE ENTRY\}/$nested/;
2589:
2590: }
2591: # Should be be killing off the 'include' elements as they're used up?
1.305 foxr 2592:
1.206 sakharuk 2593: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
1.305 foxr 2594:
1.304 foxr 2595:
2596:
2597:
2598: # the colspan array will indicate how many columns will be spanned by this
2599: # cell..this requires that counter_columns also be adjusted accordingly
2600: # so that the next bunch of text goes in the right cell. Note that since
2601: # counter_columns is incremented in the start_td_tex, we adjust by colspan-1.
2602: #
2603:
2604: $Apache::londefdef::table[-1]{'counter_columns'} += $colspan -1;
2605: for (my $i = 0; $i < ($colspan -1); $i++) {
2606: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },'';
2607: }
1.320 foxr 2608: for (my $r = 0; $r < $rowspan; $r++) {
2609: $Apache::londefdef::table[-1]{'colspan'}[$current_row+$r][$current_column] = $colspan;
2610: # Put empty text in spanned cols.
2611:
2612: }
2613:
1.304 foxr 2614:
2615:
1.301 foxr 2616: return '';
1.159 sakharuk 2617: }
2618:
1.122 albertel 2619: sub end_td {
1.126 sakharuk 2620: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 2621: my $currentstring = '';
1.325 albertel 2622: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2623: $currentstring = $token->[2];
2624: } elsif ($target eq 'tex') {
1.160 sakharuk 2625: $Apache::londefdef::TD_redirection =0;
1.159 sakharuk 2626: &end_td_tex($parstack,$parser,$safeeval);
1.122 albertel 2627: }
2628: return $currentstring;
2629: }
2630:
1.166 sakharuk 2631: #-- <th> tag (end tag optional)
1.122 albertel 2632: sub start_th {
2633: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2634: my $currentstring = '';
1.325 albertel 2635: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2636: $currentstring = $token->[4];
2637: } elsif ($target eq 'tex') {
1.230 sakharuk 2638: $Apache::londefdef::TD_redirection = 1;
2639: &tagg_check('tr','th',$tagstack,$parstack,$parser,$safeeval);
1.122 albertel 2640: }
2641: return $currentstring;
1.130 sakharuk 2642: }
1.230 sakharuk 2643:
2644: sub tagg_check {
2645: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
2646: my @ar=@$parstack;
2647: for (my $i=$#ar-1;$i>=0;$i--) {
2648: if (lc($$tagstack[$i]) eq $good_tag) {
2649: &start_th_tex($parstack,$parser,$safeeval);
2650: last;
2651: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2652: splice @ar, $i+1;
2653: &end_th_tex(\@ar,$parser,$safeeval);
2654: &start_th_tex($parstack,$parser,$safeeval);
2655: last;
2656: }
2657: }
2658: return '';
2659: }
2660:
2661: sub start_th_tex {
2662: my ($parstack,$parser,$safeeval) = @_;
2663: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2664: if ($alignchar eq '') {
2665: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
2666: }
2667: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
2668: $Apache::londefdef::table[-1]{'counter_columns'}++;
2669: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2670: if (defined $TeXwidth) {
2671: my $current_length=&recalc($TeXwidth);
2672: $current_length=~/(\d+\.?\d*)/;
2673: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2674: }
2675: &Apache::lonxml::startredirection();
2676: return '';
2677: }
2678:
2679: sub end_th_tex {
2680: my ($parstack,$parser,$safeeval) = @_;
2681: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2682: my $data=&Apache::lonxml::endredirection();
2683: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2684: if (defined $TeXwidth) {
2685: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2686: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2687: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2688: } else {
2689: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2690: my $garbage_data=$data;
2691: my $fwidth=0;
2692: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2693: my $current_length=&recalc($1);
2694: $current_length=~/(\d+\.?\d*)/;
2695: if ($fwidth<$1) {$fwidth=$1;}
2696: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2697: }
2698: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2699: my $current_length=$1;
2700: if ($fwidth<$current_length) {$fwidth=$current_length;}
2701: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2702: }
2703: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2704: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2705: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2706: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2707: } else {
2708: $data=~s/^\s+(\S.*)/$1/;
2709: $data=~s/(.*\S)\s+$/$1/;
2710: $data=~s/(\s)+/$1/;
2711: my ($current_length,$min_length)=(0,0);
2712: if ($data=~/\\vskip/) {
2713: my $newdata=$data;
2714: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2715: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2716: foreach my $elementdata (@newdata) {
2717: my $lengthnewdata=2.5*&LATEX_length($elementdata);
2718: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
2719: my @words=split(/ /,$elementdata);
2720: foreach my $word (@words) {
2721: my $lengthword=2.5*&LATEX_length($word);
2722: if ($min_length<$lengthword) {$min_length=$lengthword;}
2723: }
2724: }
2725: } else {
2726: $current_length=2.5*&LATEX_length($data);
2727: my @words=split(/ /,$data);
2728: foreach my $word (@words) {
2729: my $lengthword=2*&LATEX_length($word);
2730: if ($min_length<$lengthword) {$min_length=$lengthword;}
2731: }
2732: }
2733: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2734: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2735: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2736: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
2737: }
2738: }
2739: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
2740: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2741: }
2742: #make data bold
2743: $data='\textbf{'.$data.'}';
2744: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
2745: return'';
2746: }
2747:
1.122 albertel 2748: sub end_th {
1.130 sakharuk 2749: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 2750: my $currentstring = &end_p(); # Close any open <p> in the row.
1.325 albertel 2751: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 2752: $currentstring .= $token->[2];
1.122 albertel 2753: } elsif ($target eq 'tex') {
1.230 sakharuk 2754: $Apache::londefdef::TD_redirection =0;
2755: &end_th_tex($parstack,$parser,$safeeval);
1.122 albertel 2756: }
2757: return $currentstring;
2758: }
1.230 sakharuk 2759:
1.181 sakharuk 2760: #-- <img> tag (end tag forbidden)
1.249 foxr 2761: #
2762: # Render the <IMG> tag.
2763: # <IMG> has the following attributes (in addition to the
2764: # standard HTML ones:
2765: # TeXwrap - Governs how the tex target will try to wrap text around
2766: # horizontally aligned images.
2767: # TeXwidth - The width of the image when rendered for print (mm).
2768: # TeXheight - The height of the image when rendered for print (mm)
2769: # (Note there seems to also be support for this as a % of page size)
2770: #
1.122 albertel 2771: sub start_img {
1.299 albertel 2772: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 2773: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,
2774: undef,1);
1.325 albertel 2775: if (! $src &&
2776: ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex')
2777: ) {
1.299 albertel 2778: my $inside = &Apache::lonxml::get_all_text("/img",$parser,$style);
1.189 albertel 2779: return '';
2780: }
1.290 albertel 2781: &Apache::lonxml::extlink($src);
1.122 albertel 2782: my $currentstring = '';
2783: my $scaling = .3;
1.249 foxr 2784:
2785: # Render unto browsers that which are the browser's...
2786:
1.325 albertel 2787: if ($target eq 'web' || $target eq 'webgrade') {
1.267 albertel 2788: if ($env{'browser.imagesuppress'} ne 'on') {
1.322 albertel 2789: my $enc = ('yes' eq
2790: lc(&Apache::lonxml::get_param('encrypturl',$parstack,
2791: $safeeval)));
2792: $currentstring.=&Apache::lonenc::encrypt_ref($token,{'src'=>$src},
2793: $enc);
1.122 albertel 2794: } else {
1.322 albertel 2795: my $alttag = &Apache::lonxml::get_param('alt',$parstack,$safeeval,
2796: undef,1);
2797: if (!$alttag) {
2798: $alttag = &Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2799: $src);
1.51 sakharuk 2800: }
1.158 sakharuk 2801: $currentstring.='[IMAGE: '.$alttag.']';
1.1 sakharuk 2802: }
1.249 foxr 2803:
2804: # and render unto TeX that which is LaTeX
2805:
1.122 albertel 2806: } elsif ($target eq 'tex') {
1.248 foxr 2807: #
2808: # The alignment will require some superstructure to be put around
2809: # the \includegraphics stuff. At present we can only partially
2810: # simulate the alignments offered by html.
2811: #
2812: #
2813: my $align = lc(&Apache::lonxml::get_param('align',
2814: $parstack,
2815: $safeeval,
2816: undef,1));
2817: if(!$align) {
1.287 foxr 2818: $align = "bottom"; # This is html's default so it's ours too.
1.248 foxr 2819: }
2820: #
2821: &Apache::lonxml::debug("Alignemnt = $align");
2822: # LaTeX's image/text wrapping is really bad since it wants to
2823: # make figures float.
2824: # The user has the optional parameter (applicable only to l/r
2825: # alignment to use the picins/parpic directive to get wrapped text
2826: # this is also imperfect.. that's why we give them a choice...
2827: # so they can't yell at us for our choice.
2828: #
2829: my $latex_rendering = &Apache::lonxml::get_param('TeXwrap',
2830: $parstack,
2831: $safeeval,
2832: undef,0);
1.312 foxr 2833: # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering");
1.248 foxr 2834: if(!$latex_rendering) {
1.312 foxr 2835: $latex_rendering = "texwrap";
2836: }
2837: # using texwrap inside a table does not work. So, if after all of this,
2838: # texwrap is on, we turn it off if we detect we're in a table:
2839: #
2840: if (($latex_rendering eq 'texwrap') && &is_inside_of($tagstack, "table")) {
2841: $latex_rendering = 'parpic';
1.248 foxr 2842: }
1.323 foxr 2843:
1.312 foxr 2844: # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering image file: $src");
1.248 foxr 2845:
1.256 albertel 2846: #if original gif/jpg/png file exist do following:
1.266 albertel 2847: my $origsrc=$src;
1.256 albertel 2848: my ($path,$file) = &get_eps_image($src);
1.122 albertel 2849: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.261 foxr 2850: &Apache::lonxml::debug("path = $path file = $file src = $src");
1.192 sakharuk 2851: if (-e $src) {
1.261 foxr 2852: &Apache::lonxml::debug("$src exists");
1.256 albertel 2853: my ($height_param,$width_param)=
1.266 albertel 2854: &image_size($origsrc,0.3,$parstack,$safeeval);
1.262 foxr 2855: my $destpath = $path;
1.263 foxr 2856: $destpath =~ s/ /\_/g; # Spaces in path cause LaTex to vomit.
2857: my $destfile = $file;
2858: $destfile =~ s/ /\_/g;
1.266 albertel 2859: my $size;
2860: if ($width_param) { $size.='width='.$width_param.' mm,'; }
2861: if ($height_param) { $size.='height='.$height_param.' mm]'; }
2862: $size='['.$size;
2863: $size=~s/,$/]/;
1.262 foxr 2864: $currentstring .= '\graphicspath{{'.$destpath.'}}'
1.266 albertel 2865: .'\includegraphics'.$size.'{'.$destfile.'} ';
1.256 albertel 2866:
1.248 foxr 2867: # If there's an alignment specification we need to honor it here.
2868: # For the horizontal alignments, we will also honor the
2869: # value of the latex specfication. The default is parbox,
2870: # and that's used for illegal values too.
2871: #
2872: # Even though we set a default alignment value, the user
2873: # could have given us an illegal value. In that case we
2874: # just use the default alignment of bottom..
2875: if ($align eq "top") {
2876: $currentstring = '\raisebox{-'.$height_param.'mm}{'.$currentstring.'}';
2877: } elsif (($align eq "center") || ($align eq "middle")) { # Being kind
2878: my $offset = $height_param/2;
2879: $currentstring = '\raisebox{-'.$offset.'mm}{'.$currentstring.'}';
2880: } elsif ($align eq "left") {
2881: if ($latex_rendering eq "parpic") {
2882: $currentstring = '\parpic[l]{'.$currentstring.'}';
1.286 foxr 2883: } else { # wrapfig render
2884: $currentstring = '\begin{wrapfigure}{l}{'.$width_param.'mm}'
2885: .'\scalebox{1.0}{'.$currentstring.'}\end{wrapfigure}';
1.248 foxr 2886: }
2887: } elsif ($align eq "right") {
2888: if ($latex_rendering eq "parpic") {
2889: $currentstring = '\parpic[r]{'.$currentstring.'}';
1.286 foxr 2890: } else { # wrapfig rendering
2891: $currentstring = '\begin{wrapfigure}{r}{'.$width_param.'mm}'
2892: .'\scalebox{1.0}{'.$currentstring.'}\end{wrapfigure}';
2893:
1.248 foxr 2894: }
2895: } else { # Bottom is also default.
2896: # $currentstring = '\raisebox{'.$height_param.'mm}{'.$currentstring.'}';
2897: }
1.122 albertel 2898: } else {
1.261 foxr 2899: &Apache::lonxml::debug("$src does not exist");
1.122 albertel 2900: #original image file doesn't exist so check the alt attribute
2901: my $alt =
2902: &Apache::lonxml::get_param('alt',$parstack,$safeeval,undef,1);
2903: unless ($alt) {
2904: $alt=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
2905: }
2906:
1.256 albertel 2907: if ($alt) { $currentstring .= ' '.$alt.' '; }
1.59 sakharuk 2908: }
1.249 foxr 2909:
2910: # And here's where the semi-quote breaks down: allow the user
2911: # to edit the beast as well by rendering the problem for edit:
1.186 albertel 2912: } elsif ($target eq 'edit') {
2913: $currentstring .=&Apache::edit::tag_start($target,$token);
2914: $currentstring .=&Apache::edit::text_arg('Image Url:','src',$token,70).
2915: &Apache::edit::browse('src',undef,'alt').' '.
2916: &Apache::edit::search('src',undef,'alt').'<br />';
2917: $currentstring .=&Apache::edit::text_arg('Description:','alt',$token,70).'<br />';
2918: $currentstring .=&Apache::edit::text_arg('width (pixel):','width',$token,5);
2919: $currentstring .=&Apache::edit::text_arg('height (pixel):','height',$token,5).'<br />';
2920: $currentstring .=&Apache::edit::text_arg('TeXwidth (mm):','TeXwidth',$token,5);
2921: $currentstring .=&Apache::edit::text_arg('TeXheight (mm):','TeXheight',$token,5);
1.234 albertel 2922: $currentstring .=&Apache::edit::select_arg('Alignment:','align',
2923: ['','bottom','middle','top','left','right'],$token,5);
1.249 foxr 2924: $currentstring .=&Apache::edit::select_arg('TeXwrap:', 'TeXwrap',
2925: ['', 'parbox', 'parpic'], $token, 2);
1.332 www 2926: $currentstring .=&Apache::edit::select_arg('Encrypt URL:','encrypturl',
1.322 albertel 2927: ['no','yes'], $token, 2);
1.186 albertel 2928: $currentstring .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1.249 foxr 2929: my $src= &Apache::lonxml::get_param('src',$parstack,$safeeval);
2930: my $alt= &Apache::lonxml::get_param('alt',$parstack,$safeeval);
2931: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
2932: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
2933:
2934:
1.186 albertel 2935: $currentstring .= '<img src="'.$src.'" alt="'.$alt.'" ';
2936: if ($width) { $currentstring.=' width="'.$width.'" '; }
2937: if ($height) { $currentstring.=' height="'.$height.'" '; }
2938: $currentstring .= ' />';
2939: } elsif ($target eq 'modified') {
1.210 albertel 2940: my ($osrc,$owidth,$oheight)=
2941: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2942: my $ctag=&Apache::edit::get_new_args($token,$parstack,
1.234 albertel 2943: $safeeval,'src','alt','align',
1.249 foxr 2944: 'TeXwidth','TeXheight', 'TeXwrap',
1.322 albertel 2945: 'width','height','encrypturl');
1.210 albertel 2946: my ($nsrc,$nwidth,$nheight)=
2947: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2948: my $loc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$nsrc);
2949: &image_replication($loc);
2950: my ($iwidth,$iheight);
2951: if (-e $loc) {
2952: my $image = Image::Magick->new;
2953: $image->Read($loc);
2954: ($iwidth, $iheight) = ($image->Get('width'),
2955: $image->Get('height'));
2956: }
2957: if ($osrc ne $nsrc || (!$nwidth && !$nheight)) {
2958: # changed image or no size specified,
2959: # if they didn't explicitly change the
2960: # width or height use the ones from the image
2961: if ($iwidth && $iheight) {
2962: if ($owidth == $nwidth || (!$nwidth && !$nheight)) {
2963: $token->[2]{'width'} = $iwidth;$ctag=1;
2964: }
2965: if ($oheight == $nheight || (!$nwidth && !$nheight)) {
2966: $token->[2]{'height'}=$iheight;$ctag=1;
1.186 albertel 2967: }
2968: }
2969: }
1.210 albertel 2970: my ($cwidth,$cheight)=($token->[2]{'width'},$token->[2]{'height'});
2971: # if we don't have a width or height
2972: if ($iwidth && $cwidth && !$cheight) {
2973: $token->[2]{'height'}=int(($cwidth/$iwidth)*$iheight);$ctag=1;
2974: }
2975: if ($iheight && $cheight && !$cwidth) {
2976: $token->[2]{'width'}=int(($cheight/$iheight)*$iwidth);$ctag=1;
2977: }
2978: if ($ctag) {$currentstring=&Apache::edit::rebuild_tag($token);}
1.122 albertel 2979: }
1.261 foxr 2980:
1.122 albertel 2981: return $currentstring;
2982: }
2983:
2984: sub end_img {
2985: my ($target,$token) = @_;
2986: my $currentstring = '';
1.325 albertel 2987: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2988: $currentstring = $token->[2];
2989: } elsif ($target eq 'tex') {
2990: $currentstring = '';
2991: }
2992: return $currentstring;
2993: }
2994:
1.181 sakharuk 2995: #-- <applet> tag (end tag required)
1.122 albertel 2996: sub start_applet {
2997: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2998:
2999: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,undef,1);
1.290 albertel 3000: &Apache::lonxml::extlink($code);
1.122 albertel 3001: my $archive=&Apache::lonxml::get_param('archive',$parstack,$safeeval,
3002: undef,1);
1.290 albertel 3003: &Apache::lonxml::extlink($archive);
1.122 albertel 3004: my $currentstring = '';
1.325 albertel 3005: if ($target eq 'web' || $target eq 'webgrade') {
1.267 albertel 3006: if ($env{'browser.appletsuppress'} ne 'on') {
1.250 albertel 3007: $currentstring = &Apache::lonenc::encrypt_ref($token,
3008: {'code'=>$code,
3009: 'archive'=>$archive}
3010: );
1.122 albertel 3011: } else {
3012: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
3013: $safeeval,undef,1);
3014: unless ($alttag) {
3015: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
3016: $code);
1.44 sakharuk 3017: }
1.122 albertel 3018: $currentstring='[APPLET: '.$alttag.']';
1.1 sakharuk 3019: }
1.122 albertel 3020: } elsif ($target eq 'tex') {
1.177 albertel 3021: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
3022: $safeeval,undef,1);
3023: unless ($alttag) {
3024: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,
3025: undef,1);
3026: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
3027: $code);
1.175 sakharuk 3028: }
1.177 albertel 3029: $currentstring.='\begin{center} \fbox{Java Applet: '.$alttag.
3030: '.}\end{center}';
1.122 albertel 3031: }
3032: return $currentstring;
3033: }
3034:
3035: sub end_applet {
3036: my ($target,$token) = @_;
3037: my $currentstring = '';
1.325 albertel 3038: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3039: $currentstring = $token->[2];
3040: } elsif ($target eq 'tex') {
3041: }
3042: return $currentstring;
3043: }
3044:
1.181 sakharuk 3045: #-- <embed> tag (end tag optional/required)
1.122 albertel 3046: sub start_embed {
3047: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3048: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
1.290 albertel 3049: &Apache::lonxml::extlink($src);
1.122 albertel 3050: my $currentstring = '';
1.325 albertel 3051: if ($target eq 'web' || $target eq 'webgrade') {
1.267 albertel 3052: if ($env{'browser.embedsuppress'} ne 'on') {
1.250 albertel 3053: $currentstring=&Apache::lonenc::encrypt_ref($token,{'src'=>$src});
1.122 albertel 3054: } else {
3055: my $alttag=&Apache::lonxml::get_param
3056: ('alt',$parstack,$safeeval,undef,1);
3057: unless ($alttag) {
3058: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
1.42 albertel 3059: }
1.122 albertel 3060: $currentstring='[EMBED: '.$alttag.']';
1.10 www 3061: }
1.122 albertel 3062: } elsif ($target eq 'tex') {
3063: }
3064: return $currentstring;
3065: }
3066:
3067: sub end_embed {
3068: my ($target,$token) = @_;
3069: my $currentstring = '';
1.325 albertel 3070: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3071: $currentstring = $token->[2];
1.175 sakharuk 3072: } elsif ($target eq 'tex') {
1.122 albertel 3073: }
3074: return $currentstring;
3075: }
3076:
1.181 sakharuk 3077: #-- <param> tag (end tag forbidden)
1.122 albertel 3078: sub start_param {
3079: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.290 albertel 3080: if (&Apache::lonxml::get_param('name',$parstack,
3081: $safeeval,undef,1)=~/^cabbase$/i) {
3082: my $value=&Apache::lonxml::get_param('value',$parstack,
3083: $safeeval,undef,1);
3084: &Apache::lonxml::extlink($value);
3085: }
3086:
3087: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
3088: &Apache::lonxml::extlink($src);
1.122 albertel 3089: my $currentstring = '';
1.325 albertel 3090: if ($target eq 'web' || $target eq 'webgrade') {
1.250 albertel 3091: my %toconvert;
3092: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
3093: if ($src) { $toconvert{'src'}= $src; }
3094: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval,
3095: undef,1);
1.251 albertel 3096: if ($name=~/^cabbase$/i) {
3097: $toconvert{'value'}=&Apache::lonxml::get_param('value',$parstack,
3098: $safeeval,undef,1);
3099: }
1.250 albertel 3100: $currentstring = &Apache::lonenc::encrypt_ref($token,\%toconvert);
1.122 albertel 3101: } elsif ($target eq 'tex') {
3102: }
3103: return $currentstring;
3104: }
3105:
3106: sub end_param {
3107: my ($target,$token) = @_;
3108: my $currentstring = '';
1.325 albertel 3109: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3110: $currentstring = $token->[2];
3111: } elsif ($target eq 'tex') {
3112: }
3113: return $currentstring;
3114: }
3115:
3116: #-- <allow> tag
3117: sub start_allow {
3118: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3119: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
1.290 albertel 3120: &Apache::lonxml::extlink($src);
3121:
1.241 albertel 3122: if ($target eq 'tex') { &image_replication($src); }
1.122 albertel 3123: my $result;
3124: if ($target eq 'edit') {
3125: $result .=&Apache::edit::tag_start($target,$token);
3126: $result .=&Apache::edit::text_arg('File Spec:','src',$token,70);
3127: $result .=&Apache::edit::end_row();#.&Apache::edit::start_spanning_row();
3128: } elsif ($target eq 'modified') {
3129: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
3130: $safeeval,'src');
3131: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
3132: }
3133: return $result;
3134: }
3135:
3136: sub end_allow {
3137: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3138: if ( $target eq 'edit') { return (&Apache::edit::end_table()); }
3139: return '';
3140: }
1.119 www 3141:
1.181 sakharuk 3142: #-- Frames (end tag required)
3143: #-- <frameset>
1.122 albertel 3144: sub start_frameset {
3145: my ($target,$token) = @_;
1.277 foxr 3146: my $currentstring = ''; # Close any pending para.
1.325 albertel 3147: if ($target eq 'web' || $target eq 'webgrade') {
1.328 albertel 3148: $currentstring =
3149: &Apache::loncommon::start_page($Apache::londefdef::title,
3150: $Apache::londefdef::head,
3151: {'add_entries' => $token->[2],
3152: 'no_title' => 1,
3153: 'force_register' => 1,
3154: 'frameset' => 1,});
3155:
1.122 albertel 3156: }
3157: return $currentstring;
3158: }
3159:
3160: sub end_frameset {
3161: my ($target,$token) = @_;
3162: my $currentstring = '';
1.325 albertel 3163: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3164: $currentstring = $token->[2];
3165: }
3166: return $currentstring;
3167: }
1.162 sakharuk 3168:
1.181 sakharuk 3169: #-- <xmp> (end tag required)
1.162 sakharuk 3170: sub start_xmp {
3171: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3172: my $currentstring = '';
1.325 albertel 3173: if ($target eq 'web' || $target eq 'webgrade') {
1.162 sakharuk 3174: $currentstring .= $token->[4];
3175: } elsif ($target eq 'tex') {
3176: $currentstring .= '\begin{verbatim}';
3177: }
3178: return $currentstring;
3179: }
3180:
3181: sub end_xmp {
3182: my ($target,$token) = @_;
3183: my $currentstring = '';
1.325 albertel 3184: if ($target eq 'web' || $target eq 'webgrade') {
1.162 sakharuk 3185: $currentstring .= $token->[2];
3186: } elsif ($target eq 'tex') {
3187: $currentstring .= '\end{verbatim}';
3188: }
3189: return $currentstring;
3190: }
3191:
1.181 sakharuk 3192: #-- <pre> (end tag required)
1.122 albertel 3193: sub start_pre {
1.126 sakharuk 3194: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 3195: my $currentstring = &end_p(); # close off pending <p>
1.325 albertel 3196: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3197: $currentstring .= $token->[4];
3198: } elsif ($target eq 'tex') {
1.136 sakharuk 3199: $currentstring .= '\begin{verbatim}';
1.319 albertel 3200: &Apache::lonxml::disable_LaTeX_substitutions();
1.122 albertel 3201: }
3202: return $currentstring;
3203: }
3204:
3205: sub end_pre {
3206: my ($target,$token) = @_;
3207: my $currentstring = '';
1.325 albertel 3208: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3209: $currentstring .= $token->[2];
3210: } elsif ($target eq 'tex') {
1.136 sakharuk 3211: $currentstring .= '\end{verbatim}';
1.319 albertel 3212: &Apache::lonxml::enable_LaTeX_substitutions();
1.122 albertel 3213: }
3214: return $currentstring;
3215: }
3216:
3217: #-- <insert>
3218: sub start_insert {
3219: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3220: my $currentstring = '';
1.325 albertel 3221: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3222: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
3223: $currentstring .= '<b>'.$display.'</b>';;
3224: }
3225: return $currentstring;
3226: }
3227:
3228: sub end_insert {
3229: my ($target,$token) = @_;
3230: my $currentstring = '';
1.325 albertel 3231: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3232: $currentstring .= '';
3233: }
3234: return $currentstring;
3235: }
3236:
3237: #-- <externallink>
3238: sub start_externallink {
3239: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3240: my $currentstring = '';
1.325 albertel 3241: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3242: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
3243: $currentstring .= '<b>'.$display.'</b>';;
3244: }
3245: return $currentstring;
3246: }
3247:
3248: sub end_externallink {
3249: my ($target,$token) = @_;
3250: my $currentstring = '';
1.325 albertel 3251: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3252: $currentstring .= '';
3253: }
3254: return $currentstring;
3255: }
3256:
3257: #-- <blankspace heigth="">
3258: sub start_blankspace {
3259: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 3260: my $currentstring = &end_p(); # closes off any unclosed <p>
1.122 albertel 3261: if ($target eq 'tex') {
3262: my $howmuch = &Apache::lonxml::get_param('heigth',$parstack,$safeeval,undef,1);
3263: $currentstring .= '\vskip '.$howmuch.' ';
3264: }
3265: return $currentstring;
3266: }
3267:
3268: sub end_blankspace {
3269: my ($target,$token) = @_;
3270: my $currentstring = '';
3271: if ($target eq 'tex') {
3272: $currentstring .= '';
3273: }
3274: return $currentstring;
3275: }
3276:
1.181 sakharuk 3277: #-- <abbr> tag (end tag required)
1.122 albertel 3278: sub start_abbr {
3279: my ($target,$token) = @_;
3280: my $currentstring = '';
1.325 albertel 3281: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3282: $currentstring = $token->[4];
3283: }
3284: return $currentstring;
3285: }
3286:
3287: sub end_abbr {
3288: my ($target,$token) = @_;
3289: my $currentstring = '';
1.325 albertel 3290: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3291: $currentstring = $token->[2];
3292: }
3293: return $currentstring;
3294: }
3295:
1.181 sakharuk 3296: #-- <acronym> tag (end tag required)
1.122 albertel 3297: sub start_acronym {
3298: my ($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 $currentstring;
3304: }
3305:
3306: sub end_acronym {
3307: my ($target,$token) = @_;
3308: my $currentstring = '';
1.325 albertel 3309: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3310: $currentstring = $token->[2];
3311: }
3312: return $currentstring;
3313: }
3314:
1.181 sakharuk 3315: #-- <area> tag (end tag forbidden)
1.122 albertel 3316: sub start_area {
3317: my ($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 $currentstring;
3323: }
3324:
3325: sub end_area {
3326: my ($target,$token) = @_;
3327: my $currentstring = '';
1.325 albertel 3328: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3329: $currentstring = $token->[2];
3330: }
3331: return $currentstring;
3332: }
3333:
1.181 sakharuk 3334: #-- <base> tag (end tag forbidden)
1.122 albertel 3335: sub start_base {
3336: my ($target,$token) = @_;
3337: my $currentstring = '';
1.325 albertel 3338: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3339: $currentstring = $token->[4];
1.161 sakharuk 3340: }
1.122 albertel 3341: return $currentstring;
3342: }
3343:
3344: sub end_base {
3345: my ($target,$token) = @_;
3346: my $currentstring = '';
1.325 albertel 3347: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3348: $currentstring = $token->[2];
3349: }
3350: return $currentstring;
3351: }
3352:
1.181 sakharuk 3353: #-- <bdo> tag (end tag required)
1.122 albertel 3354: sub start_bdo {
3355: my ($target,$token) = @_;
3356: my $currentstring = '';
1.325 albertel 3357: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3358: $currentstring = $token->[4];
3359: }
3360: return $currentstring;
3361: }
3362:
3363: sub end_bdo {
3364: my ($target,$token) = @_;
3365: my $currentstring = '';
1.325 albertel 3366: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3367: $currentstring = $token->[2];
3368: }
3369: return $currentstring;
3370: }
3371:
1.181 sakharuk 3372: #-- <bgsound> tag (end tag optional)
1.122 albertel 3373: sub start_bgsound {
3374: my ($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 $currentstring;
3380: }
3381:
3382: sub end_bgsound {
3383: my ($target,$token) = @_;
3384: my $currentstring = '';
1.325 albertel 3385: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3386: $currentstring = $token->[2];
3387: }
3388: return $currentstring;
3389: }
3390:
1.181 sakharuk 3391: #-- <blink> tag (end tag required)
1.122 albertel 3392: sub start_blink {
3393: my ($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 $currentstring;
3399: }
3400:
3401: sub end_blink {
3402: my ($target,$token) = @_;
3403: my $currentstring = '';
1.325 albertel 3404: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3405: $currentstring = $token->[2];
3406: }
3407: return $currentstring;
3408: }
3409:
1.181 sakharuk 3410: #-- <blockquote> tag (end tag required)
1.122 albertel 3411: sub start_blockquote {
3412: my ($target,$token) = @_;
1.279 foxr 3413: my $currentstring = &end_p(); # Close any unclosed <p>
1.325 albertel 3414: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 3415: $currentstring .= $token->[4];
1.122 albertel 3416: }
3417: return $currentstring;
3418: }
3419:
3420: sub end_blockquote {
3421: my ($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 $currentstring;
3427: }
3428:
1.181 sakharuk 3429: #-- <button> tag (end tag required)
1.122 albertel 3430: sub start_button {
3431: my ($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 $currentstring;
3437: }
3438:
3439: sub end_button {
3440: my ($target,$token) = @_;
3441: my $currentstring = '';
1.325 albertel 3442: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3443: $currentstring = $token->[2];
3444: }
3445: return $currentstring;
3446: }
3447:
1.181 sakharuk 3448: #-- <caption> tag (end tag required)
1.122 albertel 3449: sub start_caption {
3450: my ($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 $currentstring;
3456: }
3457:
3458: sub end_caption {
3459: my ($target,$token) = @_;
3460: my $currentstring = '';
1.325 albertel 3461: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3462: $currentstring = $token->[2];
3463: }
3464: return $currentstring;
3465: }
3466:
1.181 sakharuk 3467: #-- <col> tag (end tag forbdden)
1.122 albertel 3468: sub start_col {
3469: my ($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 $currentstring;
3475: }
3476:
3477: sub end_col {
3478: my ($target,$token) = @_;
3479: my $currentstring = '';
1.325 albertel 3480: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3481: $currentstring = $token->[2];
3482: }
3483: return $currentstring;
3484: }
3485:
1.181 sakharuk 3486: #-- <colgroup> tag (end tag optional)
1.122 albertel 3487: sub start_colgroup {
3488: my ($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 $currentstring;
3494: }
3495:
3496: sub end_colgroup {
3497: my ($target,$token) = @_;
3498: my $currentstring = '';
1.325 albertel 3499: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3500: $currentstring = $token->[2];
3501: }
3502: return $currentstring;
3503: }
3504:
1.181 sakharuk 3505: #-- <del> tag (end tag required)
1.122 albertel 3506: sub start_del {
3507: my ($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 $currentstring;
3513: }
3514:
3515: sub end_del {
3516: my ($target,$token) = @_;
3517: my $currentstring = '';
1.325 albertel 3518: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3519: $currentstring = $token->[2];
3520: }
3521: return $currentstring;
3522: }
3523:
1.181 sakharuk 3524: #-- <fieldset> tag (end tag required)
1.122 albertel 3525: sub start_fieldset {
3526: my ($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 $currentstring;
3532: }
3533:
3534: sub end_fieldset {
3535: my ($target,$token) = @_;
3536: my $currentstring = '';
1.325 albertel 3537: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3538: $currentstring = $token->[2];
3539: }
3540: return $currentstring;
3541: }
3542:
1.181 sakharuk 3543: #-- <frame> tag (end tag forbidden)
1.122 albertel 3544: sub start_frame {
3545: my ($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 $currentstring;
3551: }
3552:
3553: sub end_frame {
3554: my ($target,$token) = @_;
3555: my $currentstring = '';
1.325 albertel 3556: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3557: $currentstring = $token->[2];
3558: }
3559: return $currentstring;
3560: }
3561:
1.181 sakharuk 3562: #-- <iframe> tag (end tag required)
1.122 albertel 3563: sub start_iframe {
3564: my ($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 $currentstring;
3570: }
3571:
3572: sub end_iframe {
3573: my ($target,$token) = @_;
3574: my $currentstring = '';
1.325 albertel 3575: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3576: $currentstring = $token->[2];
3577: }
3578: return $currentstring;
3579: }
3580:
1.181 sakharuk 3581: #-- <ins> tag (end tag required)
1.122 albertel 3582: sub start_ins {
3583: my ($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 $currentstring;
3589: }
3590:
3591: sub end_ins {
3592: my ($target,$token) = @_;
3593: my $currentstring = '';
1.325 albertel 3594: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3595: $currentstring = $token->[2];
3596: }
3597: return $currentstring;
3598: }
3599:
1.181 sakharuk 3600: #-- <isindex> tag (end tag forbidden)
1.122 albertel 3601: sub start_isindex {
3602: my ($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 $currentstring;
3608: }
3609:
3610: sub end_isindex {
3611: my ($target,$token) = @_;
3612: my $currentstring = '';
1.325 albertel 3613: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3614: $currentstring = $token->[2];
3615: }
3616: return $currentstring;
3617: }
3618:
1.181 sakharuk 3619: #-- <keygen> tag (end tag forbidden)
1.122 albertel 3620: sub start_keygen {
3621: my ($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 $currentstring;
3627: }
3628:
3629: sub end_keygen {
3630: my ($target,$token) = @_;
3631: my $currentstring = '';
1.325 albertel 3632: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3633: $currentstring = $token->[2];
3634: }
3635: return $currentstring;
3636: }
3637:
3638: #-- <label> tag
3639: sub start_label {
3640: my ($target,$token) = @_;
3641: my $currentstring = '';
1.325 albertel 3642: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3643: $currentstring = $token->[4];
3644: }
3645: return $currentstring;
3646: }
3647:
3648: sub end_label {
3649: my ($target,$token) = @_;
3650: my $currentstring = '';
1.325 albertel 3651: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3652: $currentstring = $token->[2];
3653: }
3654: return $currentstring;
3655: }
3656:
1.181 sakharuk 3657: #-- <layer> tag (end tag required)
1.122 albertel 3658: sub start_layer {
3659: my ($target,$token) = @_;
3660: my $currentstring = '';
1.325 albertel 3661: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3662: $currentstring = $token->[4];
3663: }
3664: return $currentstring;
3665: }
3666:
3667: sub end_layer {
3668: my ($target,$token) = @_;
3669: my $currentstring = '';
1.325 albertel 3670: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3671: $currentstring = $token->[2];
3672: }
3673: return $currentstring;
3674: }
3675:
1.181 sakharuk 3676: #-- <legend> tag (end tag required)
1.122 albertel 3677: sub start_legend {
3678: my ($target,$token) = @_;
3679: my $currentstring = '';
1.325 albertel 3680: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3681: $currentstring = $token->[4];
3682: }
3683: return $currentstring;
3684: }
3685:
3686: sub end_legend {
3687: my ($target,$token) = @_;
3688: my $currentstring = '';
1.325 albertel 3689: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3690: $currentstring = $token->[2];
3691: }
3692: return $currentstring;
3693: }
3694:
1.181 sakharuk 3695: #-- <link> tag (end tag forbidden)
1.122 albertel 3696: sub start_link {
1.292 albertel 3697: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 3698: my $currentstring = '';
1.324 albertel 3699: if ($target eq 'web' || $target eq 'webgrade') {
1.291 albertel 3700: my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
3701: undef,1);
3702: &Apache::lonxml::extlink($href);
1.122 albertel 3703: $currentstring = $token->[4];
3704: }
3705: return $currentstring;
3706: }
3707:
3708: sub end_link {
3709: my ($target,$token) = @_;
3710: my $currentstring = '';
1.325 albertel 3711: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3712: $currentstring = $token->[2];
3713: }
3714: return $currentstring;
3715: }
3716:
1.181 sakharuk 3717: #-- <marquee> tag (end tag optional)
1.122 albertel 3718: sub start_marquee {
3719: my ($target,$token) = @_;
3720: my $currentstring = '';
1.325 albertel 3721: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3722: $currentstring = $token->[4];
3723: }
3724: return $currentstring;
3725: }
3726:
3727: sub end_marquee {
3728: my ($target,$token) = @_;
3729: my $currentstring = '';
1.325 albertel 3730: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3731: $currentstring = $token->[2];
3732: }
3733: return $currentstring;
3734: }
3735:
1.179 sakharuk 3736: #-- <multicol> tag (end tag required)
3737: sub start_multicol {
1.122 albertel 3738: my ($target,$token) = @_;
1.279 foxr 3739: my $currentstring = &end_p(); # Close any pending <p>
1.325 albertel 3740: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 3741: $currentstring .= $token->[4];
1.122 albertel 3742: }
3743: return $currentstring;
3744: }
3745:
1.179 sakharuk 3746: sub end_multicol {
1.122 albertel 3747: my ($target,$token) = @_;
3748: my $currentstring = '';
1.325 albertel 3749: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3750: $currentstring = $token->[2];
3751: }
3752: return $currentstring;
3753: }
3754:
1.179 sakharuk 3755: #-- <nobr> tag (end tag required)
1.122 albertel 3756: sub start_nobr {
3757: my ($target,$token) = @_;
3758: my $currentstring = '';
1.325 albertel 3759: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3760: $currentstring = $token->[4];
1.179 sakharuk 3761: } elsif ($target eq 'tex') {
3762: $currentstring='\mbox{';
3763: }
1.122 albertel 3764: return $currentstring;
3765: }
3766:
3767: sub end_nobr {
3768: my ($target,$token) = @_;
3769: my $currentstring = '';
1.325 albertel 3770: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3771: $currentstring = $token->[2];
1.179 sakharuk 3772: } elsif ($target eq 'tex') {
3773: $currentstring='}';
3774: }
1.122 albertel 3775: return $currentstring;
3776: }
3777:
1.179 sakharuk 3778: #-- <noembed> tag (end tag required)
1.122 albertel 3779: sub start_noembed {
3780: my ($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 $currentstring;
3786: }
3787:
3788: sub end_noembed {
3789: my ($target,$token) = @_;
3790: my $currentstring = '';
1.325 albertel 3791: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3792: $currentstring = $token->[2];
3793: }
3794: return $currentstring;
3795: }
3796:
1.179 sakharuk 3797: #-- <noframes> tag (end tag required)
1.122 albertel 3798: sub start_noframes {
3799: my ($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 $currentstring;
3805: }
3806:
3807: sub end_noframes {
3808: my ($target,$token) = @_;
3809: my $currentstring = '';
1.325 albertel 3810: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3811: $currentstring = $token->[2];
3812: }
3813: return $currentstring;
3814: }
3815:
1.179 sakharuk 3816: #-- <nolayer> tag (end tag required)
1.122 albertel 3817: sub start_nolayer {
3818: my ($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 $currentstring;
3824: }
3825:
3826: sub end_nolayer {
3827: my ($target,$token) = @_;
3828: my $currentstring = '';
1.325 albertel 3829: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3830: $currentstring = $token->[2];
3831: }
3832: return $currentstring;
3833: }
3834:
1.179 sakharuk 3835: #-- <noscript> tag (end tag required)
1.122 albertel 3836: sub start_noscript {
3837: my ($target,$token) = @_;
3838: my $currentstring = '';
1.325 albertel 3839: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3840: $currentstring = $token->[4];
3841: }
3842: return $currentstring;
3843: }
3844:
3845: sub end_noscript {
3846: my ($target,$token) = @_;
3847: my $currentstring = '';
1.325 albertel 3848: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3849: $currentstring = $token->[2];
3850: }
3851: return $currentstring;
3852: }
3853:
1.179 sakharuk 3854: #-- <object> tag (end tag required)
1.122 albertel 3855: sub start_object {
3856: my ($target,$token) = @_;
3857: my $currentstring = '';
1.325 albertel 3858: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3859: $currentstring = $token->[4];
3860: }
3861: return $currentstring;
3862: }
3863:
3864: sub end_object {
3865: my ($target,$token) = @_;
3866: my $currentstring = '';
1.325 albertel 3867: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3868: $currentstring = $token->[2];
3869: }
3870: return $currentstring;
3871: }
3872:
1.179 sakharuk 3873: #-- <optgroup> tag (end tag required)
1.122 albertel 3874: sub start_optgroup {
3875: my ($target,$token) = @_;
3876: my $currentstring = '';
1.325 albertel 3877: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3878: $currentstring = $token->[4];
3879: }
3880: return $currentstring;
3881: }
3882:
3883: sub end_optgroup {
3884: my ($target,$token) = @_;
3885: my $currentstring = '';
1.325 albertel 3886: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3887: $currentstring = $token->[2];
3888: }
3889: return $currentstring;
3890: }
3891:
1.179 sakharuk 3892: #-- <samp> tag (end tag required)
1.122 albertel 3893: sub start_samp {
3894: my ($target,$token) = @_;
3895: my $currentstring = '';
1.325 albertel 3896: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3897: $currentstring = $token->[4];
1.179 sakharuk 3898: } elsif ($target eq 'tex') {
3899: $currentstring='\texttt{';
3900: }
1.122 albertel 3901: return $currentstring;
3902: }
3903:
3904: sub end_samp {
3905: my ($target,$token) = @_;
3906: my $currentstring = '';
1.325 albertel 3907: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3908: $currentstring = $token->[2];
1.179 sakharuk 3909: } elsif ($target eq 'tex') {
3910: $currentstring='}';
3911: }
1.122 albertel 3912: return $currentstring;
3913: }
3914:
3915: #-- <server> tag
3916: sub start_server {
3917: my ($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 $currentstring;
3923: }
3924:
3925: sub end_server {
3926: my ($target,$token) = @_;
3927: my $currentstring = '';
1.325 albertel 3928: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3929: $currentstring = $token->[2];
3930: }
3931: return $currentstring;
3932: }
3933:
1.179 sakharuk 3934: #-- <spacer> tag (end tag forbidden)
1.122 albertel 3935: sub start_spacer {
3936: my ($target,$token) = @_;
1.279 foxr 3937: my $currentstring = &end_p(); # Close off any open <p> tag.
1.325 albertel 3938: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 3939: $currentstring .= $token->[4];
1.122 albertel 3940: }
3941: return $currentstring;
3942: }
3943:
3944: sub end_spacer {
3945: my ($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 $currentstring;
3951: }
3952:
1.179 sakharuk 3953: #-- <span> tag (end tag required)
1.122 albertel 3954: sub start_span {
3955: my ($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 $currentstring;
3961: }
3962:
3963: sub end_span {
3964: my ($target,$token) = @_;
3965: my $currentstring = '';
1.325 albertel 3966: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3967: $currentstring = $token->[2];
3968: }
3969: return $currentstring;
3970: }
3971:
1.179 sakharuk 3972: #-- <tbody> tag (end tag optional)
1.122 albertel 3973: sub start_tbody {
3974: my ($target,$token) = @_;
3975: my $currentstring = '';
1.325 albertel 3976: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3977: $currentstring = $token->[4];
3978: }
3979: return $currentstring;
3980: }
3981:
3982: sub end_tbody {
3983: my ($target,$token) = @_;
3984: my $currentstring = '';
1.325 albertel 3985: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3986: $currentstring = $token->[2];
3987: }
3988: return $currentstring;
3989: }
3990:
1.166 sakharuk 3991: #-- <tfoot> tag (end tag optional)
1.122 albertel 3992: sub start_tfoot {
3993: my ($target,$token) = @_;
3994: my $currentstring = '';
1.325 albertel 3995: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3996: $currentstring = $token->[4];
3997: }
3998: return $currentstring;
3999: }
4000:
4001: sub end_tfoot {
4002: my ($target,$token) = @_;
4003: my $currentstring = '';
1.325 albertel 4004: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4005: $currentstring = $token->[2];
4006: }
4007: return $currentstring;
4008: }
4009:
1.166 sakharuk 4010: #-- <thead> tag (end tag optional)
1.122 albertel 4011: sub start_thead {
4012: my ($target,$token) = @_;
4013: my $currentstring = '';
1.325 albertel 4014: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4015: $currentstring = $token->[4];
4016: }
4017: return $currentstring;
4018: }
1.10 www 4019:
1.122 albertel 4020: sub end_thead {
4021: my ($target,$token) = @_;
4022: my $currentstring = '';
1.325 albertel 4023: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4024: $currentstring = $token->[2];
4025: }
4026: return $currentstring;
4027: }
1.119 www 4028:
1.122 albertel 4029: #-- <var> tag
4030: sub start_var {
1.44 sakharuk 4031: my ($target,$token) = @_;
4032: my $currentstring = '';
1.325 albertel 4033: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4034: $currentstring = $token->[4];
1.163 sakharuk 4035: } elsif ($target eq 'tex') {
4036: $currentstring = '\textit{';
4037: }
1.44 sakharuk 4038: return $currentstring;
4039: }
1.10 www 4040:
1.122 albertel 4041: sub end_var {
4042: my ($target,$token) = @_;
1.44 sakharuk 4043: my $currentstring = '';
1.325 albertel 4044: if ($target eq 'web' || $target eq 'webgrade') {
1.163 sakharuk 4045: $currentstring = $token->[2];
4046: } elsif ($target eq 'tex') {
4047: $currentstring = '}';
1.44 sakharuk 4048: }
4049: return $currentstring;
4050: }
1.119 www 4051:
1.163 sakharuk 4052: #-- <wbr> tag (end tag forbidden)
1.122 albertel 4053: sub start_wbr {
4054: my ($target,$token) = @_;
4055: my $currentstring = '';
1.325 albertel 4056: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4057: $currentstring = $token->[4];
4058: }
4059: return $currentstring;
1.98 albertel 4060: }
4061:
1.122 albertel 4062: sub end_wbr {
4063: my ($target,$token) = @_;
4064: my $currentstring = '';
1.325 albertel 4065: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4066: $currentstring = $token->[2];
4067: }
4068: return $currentstring;
1.98 albertel 4069: }
1.134 sakharuk 4070:
4071: #-- <hideweboutput> tag
4072: sub start_hideweboutput {
4073: my ($target,$token) = @_;
1.325 albertel 4074: if ($target eq 'web' || $target eq 'webgrade') {
1.134 sakharuk 4075: &Apache::lonxml::startredirection();
4076: }
4077: return '';
4078: }
4079:
4080: sub end_hideweboutput {
4081: my ($target,$token) = @_;
4082: my $currentstring = '';
1.325 albertel 4083: if ($target eq 'web' || $target eq 'webgrade') {
1.134 sakharuk 4084: $currentstring = &Apache::lonxml::endredirection();
4085: }
4086: return '';
4087: }
4088:
1.94 sakharuk 4089:
4090: sub image_replication {
4091: my $src = shift;
1.187 albertel 4092: if (not -e $src) { &Apache::lonnet::repcopy($src); }
4093: #replicates eps or ps
4094: my $epssrc = my $pssrc = $src;
4095: $epssrc =~ s/\.(gif|jpg|jpeg|png)$/.eps/i;
4096: $pssrc =~ s/\.(gif|jpg|jpeg|png)$/.ps/i;
4097: if (not -e $epssrc && not -e $pssrc) {
4098: my $result=&Apache::lonnet::repcopy($epssrc);
1.264 raeburn 4099: if ($result ne 'ok') { &Apache::lonnet::repcopy($pssrc); }
1.94 sakharuk 4100: }
4101: return '';
1.195 sakharuk 4102: }
1.275 foxr 4103: #
4104: # Get correct sizing parameter for an image given
4105: # it's initial ht. and wid. This allows sizing of
4106: # images that are generated on-the-fly (e.g. gnuplot)
4107: # as well as serving as a utility for image_size.
4108: #
4109: # Parameter:
4110: # height_param
4111: # width_param - Initial picture dimensions.
4112: # scaling - A scale factor.
4113: # parstack, - the current stack of tag attributes
4114: # from the xml parser
4115: # safeeval, - pointer to the safespace
4116: # depth, - from what level in the stack to look for attributes
4117: # (assumes -1 if unspecified)
4118: # cis - look for attrubutes case insensitively
4119: # (assumes false)
4120: #
4121: # Returns:
4122: # height, width - new dimensions.
4123: #
4124: sub resize_image {
4125: my ($height_param, $width_param, $scaling,
4126: $parstack, $safeeval, $depth, $cis) = @_;
4127:
4128: # First apply the scaling...
1.271 foxr 4129:
1.275 foxr 4130: $height_param = $height_param * $scaling;
4131: $width_param = $width_param * $scaling;
1.261 foxr 4132:
1.197 sakharuk 4133: #do we have any specified LaTeX size of the picture?
1.261 foxr 4134: my $toget='TeXwidth';
4135: if ($cis) {
4136: $toget=lc($toget);
4137: }
1.256 albertel 4138: my $TeXwidth = &Apache::lonxml::get_param($toget,$parstack,
4139: $safeeval,$depth,$cis);
4140: $toget='TeXheight'; if ($cis) { $toget=lc($toget); }
4141: my $TeXheight = &Apache::lonxml::get_param($toget,$parstack,
4142: $safeeval,$depth,$cis);
1.197 sakharuk 4143: #do we have any specified web size of the picture?
4144: my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval,
1.256 albertel 4145: $depth,1);
4146: if ($TeXwidth) {
1.252 matthew 4147: my $old_width_param=$width_param;
1.197 sakharuk 4148: if ($TeXwidth=~/(\d+)\s*\%/) {
1.267 albertel 4149: $width_param = $1*$env{'form.textwidth'}/100;
1.197 sakharuk 4150: } else {
4151: $width_param = $TeXwidth;
4152: }
1.266 albertel 4153: if ($TeXheight) {
4154: $height_param = $TeXheight;
4155: } elsif ($old_width_param) {
4156: $height_param=$TeXwidth/$old_width_param*$height_param;
4157: }
1.256 albertel 4158: } elsif ($TeXheight) {
1.248 foxr 4159: $height_param = $TeXheight;
1.266 albertel 4160: if ($height_param) {
4161: $width_param = $TeXheight/$height_param*$width_param;
4162: }
1.256 albertel 4163: } elsif ($width) {
1.252 matthew 4164: my $old_width_param=$width_param;
1.256 albertel 4165: $width_param = $width*$scaling;
1.266 albertel 4166: if ($old_width_param) {
4167: $height_param=$width_param/$old_width_param*$height_param;
4168: }
1.252 matthew 4169: }
1.267 albertel 4170: if ($width_param > $env{'form.textwidth'}) {
1.252 matthew 4171: my $old_width_param=$width_param;
1.267 albertel 4172: $width_param =0.95*$env{'form.textwidth'};
1.266 albertel 4173: if ($old_width_param) {
4174: $height_param=$width_param/$old_width_param*$height_param;
4175: }
1.197 sakharuk 4176: }
1.275 foxr 4177:
4178: return ($height_param, $width_param);
4179: }
4180:
4181: sub image_size {
4182: my ($src,$scaling,$parstack,$safeeval,$depth,$cis)=@_;
4183:
4184: #size of image from gif/jpg/jpeg/png
4185: my $ressrc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
4186: if (-e $ressrc) {
4187: $src = $ressrc;
4188: }
4189: my $image = Image::Magick->new;
4190: my $current_figure = $image->Read($src);
4191: my $width_param = $image->Get('width');
4192: my $height_param = $image->Get('height');
4193: &Apache::lonxml::debug("Image magick says: $src : Height = $height_param width = $width_param");
4194: undef($image);
4195:
4196: ($height_param, $width_param) = &resize_image($height_param, $width_param,
4197: $scaling, $parstack, $safeeval,
4198: $depth, $cis);
4199:
1.248 foxr 4200: return ($height_param, $width_param);
4201: }
4202:
4203: sub image_width {
4204: my ($height, $width) = &image_size(@_);
4205: return $width;
4206: }
4207: # Not yet 100% sure this is correct in all circumstances..
4208: # due to my uncertainty about mods to image_size.
4209: #
4210: sub image_height {
4211: my ($height, $width) = &image_size(@_);
4212: return $height;
1.197 sakharuk 4213: }
4214:
1.256 albertel 4215: sub get_eps_image {
4216: my ($src)=@_;
1.261 foxr 4217: my $orig_src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1], $src);
1.285 foxr 4218:
4219: # In order to prevent the substitution of the alt text, we need to
4220: # be sure the orig_src file is on system now so:
4221:
4222: if (! -e $orig_src) {
4223: &Apache::lonnet::repcopy($orig_src); # Failure is not completely fatal.
4224: }
1.275 foxr 4225: &Apache::lonxml::debug("get_eps_image: Original image: $orig_src");
1.282 foxr 4226: my ($spath, $sname, $sext) = fileparse($src, qr/\.(gif|png|jpg|jpeg)/i);
1.256 albertel 4227: $src=~s/\.(gif|png|jpg|jpeg)$/\.eps/i;
4228: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.275 foxr 4229: &Apache::lonxml::debug("Filelocation gives: $src");
1.256 albertel 4230: if (! -e $src) {
1.261 foxr 4231: &Apache::lonxml::debug("$src does not exist");
1.264 raeburn 4232: if (&Apache::lonnet::repcopy($src) ne 'ok' ) {
1.261 foxr 4233: &Apache::lonxml::debug("Repcopy of $src failed (1)");
1.256 albertel 4234: #if replication failed try to find ps file
4235: $src=~s/\.eps$/\.ps/;
1.261 foxr 4236: &Apache::lonxml::debug("Now looking for $src");
1.270 foxr 4237: #if no ps file try to replicate it.
4238: my $didrepcopy = &Apache::lonnet::repcopy($src);
4239: &Apache::lonxml::debug("repcopy of $src ... $didrepcopy");
4240: if ( (not -e $src) ||
4241: ($didrepcopy ne 'ok')) {
1.261 foxr 4242: &Apache::lonxml::debug("Failed to find or replicate $src");
4243:
1.256 albertel 4244: #if replication failed try to produce eps file dynamically
4245: $src=~s/\.ps$/\.eps/;
4246: my $temp_file;
1.267 albertel 4247: open(FILE,">>/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat");
1.256 albertel 4248: my $newsrc=$orig_src;
4249: $newsrc =~ s|(.*)/res/|/home/httpd/html/res/|;
1.275 foxr 4250: &Apache::lonxml::debug("queueing $newsrc for dynamic eps production.");
1.256 albertel 4251: print FILE "$newsrc\n";
1.261 foxr 4252: close FILE;
1.256 albertel 4253: $src=~s|/home/httpd/html/res|/home/httpd/prtspool|;
4254: $src=~s|/home/([^/]*)/public_html/|/home/httpd/prtspool/$1/|;
1.283 albertel 4255: if ($sext ne "") { # Put the ext. back in to uniquify.
4256: $src =~ s/\.eps$/$sext.eps/;
4257: }
1.256 albertel 4258: }
4259: }
4260: }
4261: my ($path,$file)=($src=~m|(.*)/([^/]*)$|);
1.261 foxr 4262: &Apache::lonxml::debug("get_eps_image returning: $path / $file<BR />");
1.256 albertel 4263: return ($path.'/',$file);
4264: }
4265:
1.195 sakharuk 4266: sub eps_generation {
4267: my ($src,$file,$width_param) = @_;
1.267 albertel 4268: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat";
1.195 sakharuk 4269: my $temp_file = Apache::File->new('>>'.$filename);
4270: print $temp_file "$src\n";
4271: my $newsrc = $src;
4272: $newsrc =~ s/(\.gif|\.jpg|\.jpeg)$/\.eps/i;
4273: $newsrc=~s/\/home\/httpd\/html\/res//;
4274: $newsrc=~s/\/home\/([^\/]*)\/public_html\//\/$1\//;
4275: $newsrc=~s/\/\.\//\//;
4276: $newsrc=~s/\/([^\/]+)\.(ps|eps)/\//;
1.213 sakharuk 4277: if ($newsrc=~/\/home\/httpd\/lonUsers\//) {
4278: $newsrc=~s/\/home\/httpd\/lonUsers//;
4279: $newsrc=~s/\/([^\/]+)\/(\w)\/(\w)\/(\w)\//\/$1\//;
4280: }
1.239 sakharuk 4281: if ($newsrc=~/\/userfiles\//) {
4282: return ' \graphicspath{{'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4283: } else {
4284: return ' \graphicspath{{/home/httpd/prtspool'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4285: }
1.197 sakharuk 4286: }
4287:
4288: sub file_path {
4289: my $src=shift;
4290: my ($file,$path);
4291: if ($src =~ m!(.*)/([^/]*)$!) {
4292: $file = $2;
4293: $path = $1.'/';
4294: }
4295: return $file,$path;
1.126 sakharuk 4296: }
1.294 foxr 4297: # Converts a measurement in to mm from any of
4298: # the other valid LaTeX units of measure.
4299: # If the units of measure are missing from the
4300: # parameter, it is assumed to be in and returned
4301: # with mm units of measure
1.126 sakharuk 4302: sub recalc {
4303: my $argument = shift;
4304: if (not $argument=~/(mm|cm|in|pc|pt)/) {return $argument.' mm';}
1.132 sakharuk 4305: $argument=~/\s*(\d+\.?\d*)\s*(mm|cm|in|pc|pt)/;
1.126 sakharuk 4306: my $value=$1;
4307: my $units=$2;
4308: if ($units eq 'cm') {
4309: $value*=10;
4310: } elsif ($units eq 'in') {
4311: $value*=25.4;
4312: } elsif ($units eq 'pc') {
4313: $value*=(25.4*12/72.27);
4314: } elsif ($units eq 'pt') {
4315: $value*=(25.4/72.27);
4316: }
4317: return $value.' mm';
1.94 sakharuk 4318: }
1.184 sakharuk 4319:
4320: sub LATEX_length {
4321: my $garbage=shift;
1.206 sakharuk 4322: $garbage=~s/^\s+$//;
4323: $garbage=~s/^\s+(\S.*)/$1/;#space before
4324: $garbage=~s/(.*\S)\s+$/$1/;#space after
4325: $garbage=~s/(\s)+/$1/;#only one space
4326: $garbage=~s/(\\begin{([^\}]+)}|\\end{([^\}]+)})//g;#remove LaTeX \begin{...} and \end{...}
4327: $garbage=~s/(\$\_\{|\$\_|\$\^{|\$\^|\}\$)//g;#remove $_{,$_,$^{,$^,}$
4328: $garbage=~s/([^\\])\$/$1/g;#$
4329: $garbage=~s/(\\ensuremath\{\_\{|\\ensuremath\{\_|\\ensuremath\{\^{|\\ensuremath\{\^|\})//g;#remove \ensuremath{...}
4330: $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 4331: $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;
4332: $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;
4333: $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 4334: $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;
4335: $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;
4336: $garbage=~s/(\\hat{([^}]+)}|\\check{([^}]+)}|\\dot{([^}]+)}|\\breve{([^}]+)}|\\acute{([^}]+)}|\\ddot{([^}]+)}|\\grave{([^}]+)}|\\tilde{([^}]+)}|\\mathring{([^}]+)}|\\bar{([^}]+)}|\\vec{([^}]+)})/$1/g;
4337: #remove some other LaTeX command
4338: $garbage=~s|\\(\w+)\\|\\|g;
4339: $garbage=~s|\\(\w+)(\s*)|$2|g;
4340: $garbage=~s|\+|11|g;
1.184 sakharuk 4341: my $value=length($garbage);
4342: return $value;
4343: }
4344:
4345:
1.287 foxr 4346: # is_inside_of $tagstack $tag
4347: # This sub returns true if the current state of Xml processing
4348: # is inside of the tag.
4349: # Parameters:
4350: # tagstack - The tagstack from the parser.
4351: # tag - The tag (without the <>'s.).
4352: # Sample usage:
4353: # if (is_inside_of($tagstack "table")) {
4354: # # I'm in a table....
4355: # }
4356: sub is_inside_of {
4357: my ($tagstack, $tag) = @_;
4358: my @stack = @$tagstack;
4359: for (my $i = ($#stack - 1); $i >= 0; $i--) {
4360: if ($stack[$i] eq $tag) {
4361: return 1;
4362: }
4363: }
4364: return 0;
4365: }
1.184 sakharuk 4366:
1.94 sakharuk 4367:
1.1 sakharuk 4368: 1;
4369: __END__
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