Annotation of loncom/xml/londefdef.pm, revision 1.392
1.1 sakharuk 1: # The LearningOnline Network with CAPA
2: # Tags Default Definition Module
3: #
1.392 ! bisitz 4: # $Id: londefdef.pm,v 1.391 2008/09/05 11:23:06 onken 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();
1.389 www 49: use Apache::lonlocal;
1.187 albertel 50: use Apache::Constants qw(:common);
1.282 foxr 51: use File::Basename;
1.345 albertel 52: use LONCAPA();
1.302 foxr 53: # use Data::Dumper;
1.160 sakharuk 54:
1.38 harris41 55: BEGIN {
1.15 sakharuk 56:
1.135 sakharuk 57: &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 58:
1.188 albertel 59: }
60:
1.294 foxr 61: #
62: # Dumps all elements of the table structure.
63: # Need this 'cause evidently when given an array, Data::Dumper only seems
64: # to dump element 0.
65: #
1.302 foxr 66: #sub debug_dump_table {
67: # my $lastrow = $#Apache::londefdef::table;
68: # &Apache::lonnet::logthis("Dumping table: Last row index: $lastrow");
69: # my $row;
70: # for ($row =0; $row <= $lastrow; $row++ ) {
71: # my $text = Dumper($Apache::londefdef::table[$row]);
72: # &Apache::lonnet::logthis("table [ $row ]".$text);
73: # }
74: #}
1.188 albertel 75: sub initialize_londefdef {
76: $Apache::londefdef::TD_redirection=0;
77: @Apache::londefdef::table = ();
78: $Apache::londefdef::select=0;
1.243 albertel 79: undef(@Apache::londefdef::description);
80: @Apache::londefdef::DD=(0);
81: @Apache::londefdef::DT=(0);
1.244 albertel 82: @Apache::londefdef::seenDT=(0);
1.238 albertel 83: $Apache::londefdef::list_index=0;
1.327 albertel 84: undef($Apache::londefdef::head);
85: undef($Apache::londefdef::title);
1.3 sakharuk 86: }
1.1 sakharuk 87:
1.35 sakharuk 88: #======================= TAG SUBROUTINES =====================
1.8 sakharuk 89: #-- <output>
1.21 albertel 90: sub start_output {
1.122 albertel 91: my ($target) = @_;
92: if ($target eq 'meta') { $Apache::lonxml::metamode--; }
93: return '';
1.21 albertel 94: }
95: sub end_output {
1.122 albertel 96: my ($target) = @_;
97: if ($target eq 'meta') { $Apache::lonxml::metamode++; }
98: return '';
1.21 albertel 99: }
1.4 sakharuk 100: #-- <m> tag
1.33 albertel 101: sub start_m {
1.190 albertel 102: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 103: my $currentstring = '';
1.193 albertel 104: my $inside = &Apache::lonxml::get_all_text_unbalanced("/m",$parser);
1.191 albertel 105: if ($target eq 'web' || $target eq 'analyze') {
1.122 albertel 106: &Apache::lonxml::debug("M is starting with:$inside:");
107: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
108: if ($eval eq 'on') {
109: $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
1.392 ! bisitz 110: #&Apache::lonxml::debug("M is evaluated to:$inside:");
1.122 albertel 111: }
1.317 albertel 112: my $tex = $inside;
1.276 albertel 113: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
114: $currentstring = &Apache::lontexconvert::converted(\$inside,$display);
1.122 albertel 115: if ($Apache::lontexconvert::errorstring) {
1.392 ! bisitz 116: my $errormsg='<pre>'.&HTML::Entities::encode($Apache::lontexconvert::errorstring,'<>&"').'</pre> occurred while attempting to convert this TeX: <pre>';
1.317 albertel 117: $tex = &HTML::Entities::encode($tex,'<>&"');
118: my ($linenumber) =
119: ($Apache::lontexconvert::errorstring =~ /Line (\d+)/);
120: if (defined($linenumber)) {
121: my @tex=split("\n",$tex);
122: $tex[$linenumber]='<b><font color="red">'.
123: $tex[$linenumber].'</font></b>';
124: $tex=join("\n",@tex);
125: }
126: &Apache::lonxml::warning($errormsg.$tex.'</pre>');
1.122 albertel 127: $Apache::lontexconvert::errorstring='';
128: }
129: #&Apache::lonxml::debug("M is ends with:$currentstring:");
1.178 albertel 130: $Apache::lonxml::post_evaluate=0;
1.122 albertel 131: } elsif ($target eq 'tex') {
1.360 foxr 132:
1.190 albertel 133: $currentstring = $inside;
1.178 albertel 134: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
135: if ($eval eq 'on') {
136: $currentstring=&Apache::run::evaluate($currentstring,$safeeval,$$parstack[-1]);
137: }
1.122 albertel 138: if ($currentstring=~/^(\s*\\\\\s*)*$/) {$currentstring = ' \vskip 0 mm ';}
1.257 albertel 139: # detect simple math mode entry exits, and convert them
1.360 foxr 140: # to use \ensuremath ... unless there's a \verb inside.
141: if (! ($currentstring=~/\\verb/)) {
142: if ($currentstring=~/^\s*\$[^\$].*[^\$]\$\s*$/) {
143: $currentstring=~s/^(\s*)\$/$1/;
144: $currentstring=~s/\$(\s*)$/$1/;
145: $currentstring='\ensuremath{'.$currentstring.'}';
146: }
1.257 albertel 147: }
1.178 albertel 148: $Apache::lonxml::post_evaluate=0;
1.122 albertel 149: }
150: return $currentstring;
1.33 albertel 151: }
1.122 albertel 152:
1.33 albertel 153: sub end_m {
1.122 albertel 154: my ($target,$token) = @_;
155: my $currentstring = '';
1.204 albertel 156: if ($target eq 'tex') {
1.122 albertel 157: $currentstring = "";
158: }
159: return $currentstring;
1.33 albertel 160: }
1.110 albertel 161:
162: sub start_tthoption {
1.299 albertel 163: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 164: my $result;
1.325 albertel 165: if ($target eq 'web' || $target eq 'webgrade') {
1.299 albertel 166: my $inside = &Apache::lonxml::get_all_text("/tthoption",$parser,
167: $style);
1.122 albertel 168: $inside=~s/^\s*//;
1.267 albertel 169: if ($env{'browser.mathml'}) {
1.122 albertel 170: &tth::ttmoptions($inside);
171: } else {
172: &tth::tthoptions($inside);
173: }
174: }
175: return $result;
1.110 albertel 176: }
177:
178: sub end_tthoption {
1.122 albertel 179: my ($target,$token) = @_;
180: my $result;
181: return $result;
1.110 albertel 182: }
183:
1.181 sakharuk 184: #-- <html> tag (end tag optional)
1.100 albertel 185: sub start_html {
186: my ($target,$token) = @_;
187: my $currentstring = '';
1.269 albertel 188: if ($target eq 'web' || $target eq 'edit' || $target eq 'webgrade' ) {
1.327 albertel 189: # start_body() takes care of emitting the <html>
1.100 albertel 190: } elsif ($target eq 'tex') {
1.331 albertel 191: $currentstring .=
192: '\documentclass[letterpaper,twoside]{article}\raggedbottom';
1.267 albertel 193: if (($env{'form.latex_type'}=~'batchmode') ||
194: (!$env{'request.role.adv'})) {$currentstring .='\batchmode';}
1.217 sakharuk 195: $currentstring .= '\newcommand{\keephidden}[1]{}'.
196: '\renewcommand{\deg}{$^{\circ}$}'.
1.306 foxr 197: '\usepackage{multirow}'.
1.217 sakharuk 198: '\usepackage{longtable}'.
199: '\usepackage{textcomp}'.
200: '\usepackage{makeidx}'.
201: '\usepackage[dvips]{graphicx}'.
1.286 foxr 202: '\usepackage{wrapfig}'.
1.248 foxr 203: '\usepackage{picins}'.
1.386 foxr 204: '\usepackage[T1]{fontenc}'."\n".
1.388 foxr 205: '\usepackage[postscript]{ucs}'."\n".
1.387 foxr 206: '\usepackage[utf8x]{inputenc}'."\n".
207: '\usepackage{pifont}' ."\n".
1.385 foxr 208: '\usepackage{latexsym}'."\n".
1.217 sakharuk 209: '\usepackage{epsfig}'.
210: '\usepackage{calc}'.
211: '\usepackage{amsmath}'.
212: '\usepackage{amssymb}'.
213: '\usepackage{amsfonts}'.
214: '\usepackage{amsthm}'.
1.391 onken 215: '\usepackage{amscd}';
216:
217: if($env{'form.pdfFormFields'} eq 'yes') {
218: $currentstring .= '\usepackage{hyperref}'.
219: '\usepackage{eforms}'.
220: '\usepackage{tabularx}';
221: }
222:
223: $currentstring .= '\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}}'.
1.217 sakharuk 224: '\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 225: }
226: return $currentstring;
227: }
1.122 albertel 228:
229: sub end_html {
1.232 sakharuk 230: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 231: my $currentstring = '';
1.324 albertel 232: if ($target eq 'web' || $target eq 'webgrade') {
1.327 albertel 233: # end_body takes care of the </html>
1.122 albertel 234: }
235: return $currentstring;
236: }
237:
1.181 sakharuk 238: #-- <head> tag (end tag optional)
1.122 albertel 239: sub start_head {
240: my ($target,$token) = @_;
241: my $currentstring = '';
1.324 albertel 242: if ($target eq 'web' || $target eq 'webgrade') {
1.327 albertel 243: &Apache::lonxml::startredirection();
1.122 albertel 244: }
245: return $currentstring;
246: }
247:
248: sub end_head {
249: my ($target,$token) = @_;
250: my $currentstring = '';
1.324 albertel 251: if (($target eq 'web' && $env{'request.state'} eq 'published') ||
252: ($target eq 'webgrade' && $env{'request.state'} eq 'published')) {
1.327 albertel 253: # in case there is a </head> but no <head>
254: if ($Apache::lonxml::redirection) {
255: $Apache::londefdef::head = &Apache::lonxml::endredirection();
256: }
1.122 albertel 257: }
258: return $currentstring;
259: }
260:
1.181 sakharuk 261: #-- <map> tag (end tag required)
1.122 albertel 262: sub start_map {
263: my ($target,$token) = @_;
264: my $currentstring = '';
1.325 albertel 265: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 266: $currentstring = $token->[4];
267: }
268: return $currentstring;
269: }
270:
271: sub end_map {
272: my ($target,$token) = @_;
273: my $currentstring = '';
1.325 albertel 274: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 275: $currentstring = $token->[2];
276: }
277: return $currentstring;
278: }
279:
1.181 sakharuk 280: #-- <select> tag (end tag required)
1.122 albertel 281: sub start_select {
282: my ($target,$token) = @_;
283: my $currentstring = '';
1.325 albertel 284: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 285: $currentstring = $token->[4];
1.181 sakharuk 286: } elsif ($target eq 'tex') {
287: $Apache::londefdef::select=0;
288: }
1.122 albertel 289: return $currentstring;
290: }
291:
292: sub end_select {
293: my ($target,$token) = @_;
294: my $currentstring = '';
1.325 albertel 295: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 296: $currentstring = $token->[2];
297: }
298: return $currentstring;
299: }
300:
1.181 sakharuk 301: #-- <option> tag (end tag optional)
1.122 albertel 302: sub start_option {
1.181 sakharuk 303: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 304: my $currentstring = '';
1.325 albertel 305: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 306: $currentstring = $token->[4];
1.181 sakharuk 307: } elsif ($target eq 'tex') {
308: $Apache::londefdef::select++;
309: if ($Apache::londefdef::select == 1) {
310: $currentstring='\noindent\fbox{'.&Apache::lonxml::get_param('value',$parstack,$safeeval).'}\keephidden{';
311: } else {
312: $currentstring='\keephidden{';
313: }
314: }
1.122 albertel 315: return $currentstring;
316: }
317:
318: sub end_option {
319: my ($target,$token) = @_;
320: my $currentstring = '';
1.325 albertel 321: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 322: $currentstring = $token->[2];
1.181 sakharuk 323: } elsif ($target eq 'tex') {
324: $currentstring='}';
325: }
1.122 albertel 326: return $currentstring;
327: }
328:
1.181 sakharuk 329: #-- <input> tag (end tag forbidden)
1.122 albertel 330: sub start_input {
331: my ($target,$token) = @_;
332: my $currentstring = '';
1.325 albertel 333: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 334: $currentstring = $token->[4];
335: }
336: return $currentstring;
337: }
338:
339: sub end_input {
340: my ($target,$token) = @_;
341: my $currentstring = '';
1.325 albertel 342: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 343: $currentstring = $token->[2];
344: }
345: return $currentstring;
346: }
347:
1.181 sakharuk 348: #-- <textarea> tag (end tag required)
1.122 albertel 349: sub start_textarea {
350: my ($target,$token) = @_;
351: my $currentstring = '';
1.325 albertel 352: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 353: $currentstring = $token->[4];
354: }
355: return $currentstring;
356: }
357:
358: sub end_textarea {
359: my ($target,$token) = @_;
360: my $currentstring = '';
1.325 albertel 361: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 362: $currentstring = $token->[2];
363: }
364: return $currentstring;
365: }
366:
1.181 sakharuk 367: #-- <form> tag (end tag required)
1.122 albertel 368: sub start_form {
369: my ($target,$token) = @_;
370: my $currentstring = '';
1.325 albertel 371: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 372: $currentstring = $token->[4];
373: }
374: return $currentstring;
375: }
376:
377: sub end_form {
378: my ($target,$token) = @_;
379: my $currentstring = '';
1.325 albertel 380: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 381: $currentstring = $token->[2];
382: }
383: return $currentstring;
384: }
385:
1.181 sakharuk 386: #-- <title> tag (end tag required)
1.122 albertel 387: sub start_title {
1.327 albertel 388: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 389: my $currentstring = '';
1.324 albertel 390: if ($target eq 'web' || $target eq 'webgrade') {
1.327 albertel 391: $Apache::londefdef::title =
392: &Apache::lonxml::get_all_text('/title',$parser,$style);
1.122 albertel 393: } elsif ($target eq 'tex') {
1.166 sakharuk 394: $currentstring .= '\keephidden{Title of the document: '
1.122 albertel 395: }
396: if ($target eq 'meta') {
397: $currentstring='<title>';
1.185 albertel 398: &start_output($target);
1.122 albertel 399: }
400: return $currentstring;
401: }
402:
403: sub end_title {
404: my ($target,$token) = @_;
405: my $currentstring = '';
1.324 albertel 406: if ($target eq 'web' || $target eq 'webgrade') {
1.327 albertel 407: # start_title takes care of swallowing the title
1.122 albertel 408: } elsif ($target eq 'tex') {
409: $currentstring .= '}';
410: }
411: if ($target eq 'meta') {
1.185 albertel 412: &end_output($target);
1.122 albertel 413: $currentstring='</title>';
414: }
415: return $currentstring;
416: }
417:
1.181 sakharuk 418: #-- <meta> tag (end tag forbidden)
1.122 albertel 419: sub start_meta {
1.299 albertel 420: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 421: my $currentstring = '';
1.325 albertel 422: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 423: my $args='';
424: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
425: if ($args eq '') {
1.299 albertel 426: &Apache::lonxml::get_all_text("/meta",$parser,$style);
1.122 albertel 427: } else {
428: $currentstring = $token->[4];
1.1 sakharuk 429: }
1.135 sakharuk 430: } elsif ($target eq 'meta') {
1.122 albertel 431: unless (&Apache::lonxml::get_param
432: ('http-equiv',$parstack,$safeeval,undef,1)) {
433: my $name=$token->[2]->{'name'};
434: $name=~tr/A-Z/a-z/;
435: $name=~s/\s/\_/gs;
436: $name=~s/\W//gs;
437: if ($name) {
1.154 www 438: $currentstring='<'.$name;
439: my $display=&Apache::lonxml::get_param
440: ('display',$parstack,$safeeval,undef,1);
441: if ($display) {
442: $display=~s/\"/\'/g;
443: $currentstring.=' display="'.$display.'"';
444: }
445: $currentstring.='>'.
1.122 albertel 446: &Apache::lonxml::get_param
447: ('content',$parstack,$safeeval,undef,1).
1.135 sakharuk 448: '</'.$name.'>';
1.1 sakharuk 449: }
1.154 www 450: my $display=&Apache::lonxml::get_param
451: ('display',$parstack,$safeeval,undef,1);
452: if ($display) {
1.204 albertel 453: $display=&HTML::Entities::encode($display,'<>&"');
1.154 www 454: $currentstring.='<'.$name.'.display>'.$display.
455: '</'.$name.'.display>';
456: }
1.1 sakharuk 457: }
1.135 sakharuk 458: } elsif ($target eq 'tex') {
1.151 sakharuk 459: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
460: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
461: if ((not defined $content) && (not defined $name)) {
462: &Apache::lonxml::startredirection();
463: }
1.374 albertel 464: } elsif ($target eq 'edit') {
465: $currentstring .= &Apache::edit::tag_start($target,$token);
466: $currentstring .= &Apache::edit::text_arg('Name:','name',$token,30);
467: $currentstring .= &Apache::edit::text_arg('Content:','content',$token,70);
468: $currentstring .= &Apache::edit::end_row();
469: } elsif ($target eq 'modified') {
470: my $constructtag =
471: &Apache::edit::get_new_args($token,$parstack,$safeeval,
472: 'name','content');
473: if ($constructtag) { $currentstring = &Apache::edit::rebuild_tag($token); }
1.122 albertel 474: }
475: return $currentstring;
476: }
477:
478: sub end_meta {
1.165 albertel 479: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 480: my $currentstring = '';
1.325 albertel 481: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 482: my $args='';
483: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
484: if ($args ne '') {
1.121 www 485: $currentstring = $token->[4];
1.122 albertel 486: }
1.135 sakharuk 487: } elsif ($target eq 'tex') {
1.165 albertel 488: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
489: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
1.164 albertel 490: if ((not defined $content) && (not defined $name)) {
1.169 albertel 491: &Apache::lonxml::endredirection();
1.164 albertel 492: }
1.135 sakharuk 493: }
1.122 albertel 494: return $currentstring;
495: }
496:
1.374 albertel 497: sub insert_meta {
498: return '
499: <meta />';
500: }
501:
1.121 www 502: # accessrule
1.122 albertel 503: sub start_accessrule {
1.299 albertel 504: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 505: my $currentstring = '';
1.373 albertel 506: my $eff =&Apache::lonxml::get_param('effect',$parstack,$safeeval,undef,1);
507: my $realm=&Apache::lonxml::get_param('realm', $parstack,$safeeval,undef,1);
508: my $role =&Apache::lonxml::get_param('role', $parstack,$safeeval,undef,1);
509: my $type =&Apache::lonxml::get_param('type', $parstack,$safeeval,undef,1);
510:
511: my ($dom,$crs,$sec,$separator);
1.369 albertel 512: if ($type eq 'user') {
1.373 albertel 513: ($dom,$crs,$sec)=split(m{/},$realm);
1.369 albertel 514: $crs = &LONCAPA::clean_username($crs);
1.373 albertel 515: $separator = '/';
1.369 albertel 516: } else {
1.373 albertel 517: ($dom,$crs,$sec)=split(/\_/,$realm);
1.369 albertel 518: $crs = &LONCAPA::clean_courseid($crs);
1.373 albertel 519: $separator = '_';
1.369 albertel 520: }
1.373 albertel 521: $dom = &LONCAPA::clean_domain($dom);
522:
1.369 albertel 523: $sec =~s/\W//;
524: $realm = $dom;
1.373 albertel 525: if ($crs =~ /\S/) { $realm .= $separator.$crs; }
526: if ($sec =~ /\S/) { $realm .= $separator.$sec; }
1.369 albertel 527: $role=~s/\W//g;
528:
1.122 albertel 529: if ($target eq 'web') {
530: my $args='';
531: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
532: if ($args eq '') {
1.299 albertel 533: &Apache::lonxml::get_all_text("/accessrule",$parser,$style);
1.122 albertel 534: } else {
535: $currentstring = $token->[4];
536: }
537: }
538: if ($target eq 'meta') {
1.369 albertel 539: $currentstring='<rule>'.$eff.':'.$realm.':'.$role.':'.$type.'</rule>';
1.122 albertel 540: }
541: return $currentstring;
542: }
543:
544: sub end_accessrule {
545: my ($target,$token,$tagstack,$parstack,$parser) = @_;
546: my $currentstring = '';
547: if ($target eq 'web') {
548: my $args='';
549: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
550: if ($args ne '') {
551: $currentstring = $token->[4];
552: }
553: }
554: return $currentstring;
555: }
556:
1.366 albertel 557: sub generate_css_links {
558: my $links;
559: my $css_href = &Apache::lonnet::EXT('resource.0.cssfile');
560: if ($css_href =~ /\S/) {
561: &Apache::lonxml::extlink($css_href);
562: $links .=
563: '<link rel="stylesheet" type="text/css" href="'.$css_href.'" />';
564: }
565: return $links;
566: }
567:
1.181 sakharuk 568: #-- <body> tag (end tag required)
1.122 albertel 569: sub start_body {
570: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
571: my $currentstring = '';
1.244 albertel 572:
1.324 albertel 573: if ($target eq 'web' || $target eq 'webgrade') {
1.170 albertel 574: if ($Apache::lonhomework::parsing_a_problem) {
575: &Apache::lonxml::warning("<body> tag found inside of <problem> tag this can cause problems.");
576: return '';
577: }
1.122 albertel 578:
1.327 albertel 579: if (&is_inside_of($tagstack, "head")) {
580: &end_head(@_);
1.122 albertel 581: }
1.366 albertel 582:
583: my $extra_head = &generate_css_links();
584:
1.327 albertel 585: $currentstring =
586: &Apache::loncommon::start_page($Apache::londefdef::title,
1.366 albertel 587: $Apache::londefdef::head
588: .$extra_head,
1.327 albertel 589: {'add_entries' => $token->[2],
590: 'no_title' => 1,
591: 'force_register' => 1});
592:
1.267 albertel 593: if ($env{'request.state'} ne 'published') {
1.378 albertel 594: $currentstring.=&Apache::lonmenu::constspaceform();
595: $currentstring.=&Apache::londefdef::edit_controls();
1.1 sakharuk 596: }
1.201 albertel 597: $currentstring.=&Apache::lonxml::message_location();
1.122 albertel 598: } elsif ($target eq 'tex') {
599: $currentstring = '\begin{document}';
600: }
601: return $currentstring;
602: }
603:
1.376 albertel 604: sub edit_controls {
1.389 www 605: my $result .= '
1.376 albertel 606: <form method="post">
1.389 www 607: <div class="LC_edit_problem_header">
608: <div class="LC_edit_problem_header_row1">'.
609: &Apache::lonxml::renderingoptions().'
610: <input type="submit" name="changeproblemmode" value="'.&mt('Change View').'" />
611: </div>
612: <div class="LC_edit_problem_header_edit_row"><input type="submit" name="editmode" accesskey="e" value="Edit" /></div></div>
1.376 albertel 613: </form>
1.389 www 614: <br />';
1.376 albertel 615: return $result;
616: }
617:
1.122 albertel 618: sub end_body {
1.259 albertel 619: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 620: my $currentstring = &end_p(); # Close off unclosed <p>
1.324 albertel 621: if ($target eq 'web' || $target eq 'webgrade') {
1.327 albertel 622: $currentstring .= &Apache::loncommon::end_page({'discussion' => 1});
1.122 albertel 623: } elsif ($target eq 'tex') {
1.277 foxr 624: $currentstring .= '\strut\newline\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\newline\noindent \end{document}';
1.122 albertel 625: }
626: return $currentstring;
627: }
628:
1.309 albertel 629: # \begin{center} causes a new paragprah spacing that looks odd inside
1.337 foxr 630: # of a table cell. Same at the end of a \center but with a slightly
631: # larger space .. hence center_correction and center_end_correction.
632: #
633: sub center_correction { return '\vspace*{-6 mm}'; }
634: sub center_end_correction { return '\vspace*{-7 mm}'; }
635:
1.181 sakharuk 636: #-- <center> tag (end tag required)
1.122 albertel 637: sub start_center {
1.309 albertel 638: my ($target,$token,$tagstack) = @_;
1.279 foxr 639: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 640: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 641: $currentstring .= $token->[4];
1.122 albertel 642: } elsif ($target eq 'tex') {
1.309 albertel 643: if (&is_inside_of($tagstack, "table")) {
644: $currentstring .= ¢er_correction();
645: }
1.277 foxr 646: $currentstring .= '\begin{center}';
1.144 sakharuk 647: }
1.122 albertel 648: return $currentstring;
649: }
650:
651: sub end_center {
1.309 albertel 652: my ($target,$token,$tagstack) = @_;
1.122 albertel 653: my $currentstring = '';
1.325 albertel 654: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 655: $currentstring = $token->[2];
656: } elsif ($target eq 'tex') {
657: $currentstring = '\end{center}';
1.337 foxr 658: if (&is_inside_of($tagstack, "table")) {
659: $currentstring .= ¢er_end_correction();
660: }
1.144 sakharuk 661: }
1.122 albertel 662: return $currentstring;
663: }
664:
1.181 sakharuk 665: #-- <b> tag (end tag required)
1.279 foxr 666: # NOTE: In TeX mode disables internal <p>
1.122 albertel 667: sub start_b {
668: my ($target,$token) = @_;
669: my $currentstring = '';
1.325 albertel 670: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 671: $currentstring = $token->[4];
672: } elsif ($target eq 'tex') {
1.279 foxr 673: &disable_para();
674: $currentstring .= '\textbf{';
1.122 albertel 675: }
676: return $currentstring;
677: }
678:
679: sub end_b {
680: my ($target,$token) = @_;
681: my $currentstring = '';
1.325 albertel 682: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 683: $currentstring = $token->[2];
684: } elsif ($target eq 'tex') {
1.279 foxr 685: &enable_para();
686: $currentstring = '}';
1.122 albertel 687: }
688: return $currentstring;
689: }
1.35 sakharuk 690:
1.181 sakharuk 691: #-- <strong> tag (end tag required)
1.279 foxr 692: # NOTE: in TeX mode disables internal <p>
1.122 albertel 693: sub start_strong {
694: my ($target,$token) = @_;
695: my $currentstring = '';
1.325 albertel 696: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 697: $currentstring = $token->[4];
698: } elsif ($target eq 'tex') {
1.279 foxr 699: &disable_para();
1.122 albertel 700: $currentstring = '\textbf{';
701: }
702: return $currentstring;
703: }
704:
705: sub end_strong {
706: my ($target,$token) = @_;
707: my $currentstring = '';
1.325 albertel 708: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 709: $currentstring = $token->[2];
710: } elsif ($target eq 'tex') {
1.279 foxr 711: &enable_para();
1.122 albertel 712: $currentstring = '}';
1.144 sakharuk 713: }
1.122 albertel 714: return $currentstring;
715: }
716:
1.181 sakharuk 717: #-- <h1> tag (end tag required)
1.122 albertel 718: sub start_h1 {
1.125 sakharuk 719: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 720: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 721: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 722: $currentstring .= $token->[4];
723: } elsif ($target eq 'tex') {
1.125 sakharuk 724: my $pre;
1.199 albertel 725: my $align=lc(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1));
1.212 sakharuk 726: if ($align eq 'center') {
1.125 sakharuk 727: $pre='\begin{center}';
728: } elsif ($align eq 'left') {
729: $pre='\rlap{';
730: } elsif ($align eq 'right') {
731: $pre=' \hfill \llap{';
732: }
733: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
734: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 735: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 736: } elsif ($target eq 'meta') {
1.277 foxr 737: $currentstring.='<subject>';
1.185 albertel 738: &start_output($target);
1.122 albertel 739: }
740: return $currentstring;
741: }
742:
743: sub end_h1 {
1.125 sakharuk 744: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 745: my $currentstring = '';
1.325 albertel 746: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 747: $currentstring .= $token->[2];
748: } elsif ($target eq 'tex') {
1.212 sakharuk 749: my $post='\vskip 0 mm ';
1.125 sakharuk 750: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 751: if ($align eq 'center') {
1.125 sakharuk 752: $post='\end{center}';
753: } elsif ($align eq 'left') {
754: $post='} \hfill'.'\vskip 0 mm ';
755: } elsif ($align eq 'right') {
756: $post='}'.'\vskip 0 mm ';
757: }
758: $currentstring .= '}}'.$post;
1.122 albertel 759: } elsif ($target eq 'meta') {
1.185 albertel 760: &end_output($target);
1.122 albertel 761: $currentstring='</subject>';
762: }
763: return $currentstring;
764: }
765:
1.35 sakharuk 766: #-- <h2> tag
1.122 albertel 767: sub start_h2 {
1.125 sakharuk 768: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 769: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 770: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 771: $currentstring .= $token->[4];
772: } elsif ($target eq 'tex') {
1.125 sakharuk 773: my $pre;
774: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 775: if ($align eq 'center') {
1.125 sakharuk 776: $pre='\begin{center}';
777: } elsif ($align eq 'left') {
778: $pre='\rlap{';
779: } elsif ($align eq 'right') {
780: $pre=' \hfill \llap{';
781: }
782: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
783: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 784: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 785: }
786: return $currentstring;
787: }
788:
789: sub end_h2 {
1.125 sakharuk 790: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 791: my $currentstring = '';
1.325 albertel 792: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 793: $currentstring .= $token->[2];
794: } elsif ($target eq 'tex') {
1.212 sakharuk 795: my $post='\vskip 0 mm ';
1.125 sakharuk 796: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 797: if ($align eq 'center') {
1.125 sakharuk 798: $post='\end{center}';
799: } elsif ($align eq 'left') {
800: $post='} \hfill'.'\vskip 0 mm ';
801: } elsif ($align eq 'right') {
802: $post='}'.'\vskip 0 mm ';
803: }
804: $currentstring .= '}}'.$post;
1.122 albertel 805: }
806: return $currentstring;
807: }
808:
1.35 sakharuk 809: #-- <h3> tag
1.122 albertel 810: sub start_h3 {
1.125 sakharuk 811: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 812: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 813: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 814: $currentstring .= $token->[4];
815: } elsif ($target eq 'tex') {
1.125 sakharuk 816: my $pre;
817: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 818: if ($align eq 'center') {
1.125 sakharuk 819: $pre='\begin{center}';
820: } elsif ($align eq 'left') {
821: $pre='\rlap{';
822: } elsif ($align eq 'right') {
823: $pre=' \hfill \llap{';
824: }
825: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
826: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 827: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 828: }
829: return $currentstring;
830: }
831:
832: sub end_h3 {
1.125 sakharuk 833: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 834: my $currentstring = '';
1.325 albertel 835: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 836: $currentstring .= $token->[2];
837: } elsif ($target eq 'tex') {
1.212 sakharuk 838: my $post='\vskip 0 mm ';
1.125 sakharuk 839: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 840: if ($align eq 'center') {
1.125 sakharuk 841: $post='\end{center}';
842: } elsif ($align eq 'left') {
843: $post='} \hfill'.'\vskip 0 mm ';
844: } elsif ($align eq 'right') {
845: $post='}'.'\vskip 0 mm ';
846: }
847: $currentstring .= '}}'.$post;
1.122 albertel 848: }
849: return $currentstring;
850: }
851:
1.35 sakharuk 852: #-- <h4> tag
1.122 albertel 853: sub start_h4 {
1.125 sakharuk 854: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 855: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 856: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 857: $currentstring .= $token->[4];
858: } elsif ($target eq 'tex') {
1.125 sakharuk 859: my $pre;
860: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 861: if ($align eq 'center') {
1.125 sakharuk 862: $pre='\begin{center}';
863: } elsif ($align eq 'left') {
864: $pre='\rlap{';
865: } elsif ($align eq 'right') {
866: $pre=' \hfill \llap{';
867: }
868: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
869: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 870: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 871: }
872: return $currentstring;
873: }
874:
875: sub end_h4 {
1.125 sakharuk 876: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 877: my $currentstring = '';
1.325 albertel 878: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 879: $currentstring .= $token->[2];
880: } elsif ($target eq 'tex') {
1.212 sakharuk 881: my $post='\vskip 0 mm ';
1.125 sakharuk 882: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 883: if ($align eq 'center') {
1.125 sakharuk 884: $post='\end{center}';
885: } elsif ($align eq 'left') {
886: $post='} \hfill'.'\vskip 0 mm ';
887: } elsif ($align eq 'right') {
888: $post='}'.'\vskip 0 mm ';
889: }
890: $currentstring .= '}}'.$post;
1.122 albertel 891: }
892: return $currentstring;
893: }
894:
1.35 sakharuk 895: #-- <h5> tag
1.122 albertel 896: sub start_h5 {
1.125 sakharuk 897: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 898: my $currentstring = &end_p(); # Close off any prior paras.
1.325 albertel 899: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 900: $currentstring .= $token->[4];
901: } elsif ($target eq 'tex') {
1.125 sakharuk 902: my $pre;
903: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 904: if ($align eq 'center') {
1.125 sakharuk 905: $pre='\begin{center}';
906: } elsif ($align eq 'left') {
907: $pre='\rlap{';
908: } elsif ($align eq 'right') {
909: $pre=' \hfill \llap{';
910: }
911: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
912: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 913: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 914: }
915: return $currentstring;
916: }
917:
918: sub end_h5 {
1.125 sakharuk 919: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 920: my $currentstring = '';
1.325 albertel 921: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 922: $currentstring .= $token->[2];
923: } elsif ($target eq 'tex') {
1.212 sakharuk 924: my $post='\vskip 0 mm ';
1.125 sakharuk 925: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 926: if ($align eq 'center') {
1.125 sakharuk 927: $post='\end{center}';
928: } elsif ($align eq 'left') {
929: $post='} \hfill'.'\vskip 0 mm ';
930: } elsif ($align eq 'right') {
931: $post='}'.'\vskip 0 mm ';
932: }
933: $currentstring .= '}}'.$post;
1.122 albertel 934: }
935: return $currentstring;
936: }
937:
1.35 sakharuk 938: #-- <h6> tag
1.122 albertel 939: sub start_h6 {
1.125 sakharuk 940: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 941: my $currentstring = &end_p(); # Close off any prior paras.
1.325 albertel 942: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 943: $currentstring .= $token->[4];
944: } elsif ($target eq 'tex') {
1.125 sakharuk 945: my $pre;
946: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 947: if ($align eq 'center') {
1.125 sakharuk 948: $pre='\begin{center}';
949: } elsif ($align eq 'left') {
950: $pre='\rlap{';
951: } elsif ($align eq 'right') {
952: $pre=' \hfill \llap{';
953: }
954: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
955: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 956: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 957: }
958: return $currentstring;
959: }
960:
961: sub end_h6 {
1.125 sakharuk 962: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 963: my $currentstring = '';
1.325 albertel 964: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 965: $currentstring .= $token->[2];
966: } elsif ($target eq 'tex') {
1.212 sakharuk 967: my $post='\vskip 0 mm ';
1.125 sakharuk 968: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 969: if ($align eq 'center') {
1.125 sakharuk 970: $post='\end{center}';
971: } elsif ($align eq 'left') {
972: $post='} \hfill'.'\vskip 0 mm ';
973: } elsif ($align eq 'right') {
974: $post='}'.'\vskip 0 mm ';
975: }
976: $currentstring .= '}}'.$post;
1.122 albertel 977: }
978: return $currentstring;
979: }
980:
1.181 sakharuk 981: #--- <cite> tag (end tag required)
1.122 albertel 982: sub start_cite {
983: my ($target,$token) = @_;
984: my $currentstring = '';
1.325 albertel 985: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 986: $currentstring .= $token->[4];
987: } elsif ($target eq 'tex') {
1.179 sakharuk 988: $currentstring .= '\textit{';
1.144 sakharuk 989: }
1.122 albertel 990: return $currentstring;
991: }
992:
993: sub end_cite {
994: my ($target,$token) = @_;
995: my $currentstring = '';
1.325 albertel 996: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 997: $currentstring .= $token->[2];
998: } elsif ($target eq 'tex') {
1.179 sakharuk 999: $currentstring .= '}';
1.144 sakharuk 1000: }
1.122 albertel 1001: return $currentstring;
1002: }
1003:
1.181 sakharuk 1004: #-- <i> tag (end tag required)
1.122 albertel 1005: sub start_i {
1006: my ($target,$token) = @_;
1007: my $currentstring = '';
1.325 albertel 1008: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1009: $currentstring .= $token->[4];
1010: } elsif ($target eq 'tex') {
1011: $currentstring .= '\textit{';
1.144 sakharuk 1012: }
1.122 albertel 1013: return $currentstring;
1014: }
1015:
1016: sub end_i {
1017: my ($target,$token) = @_;
1018: my $currentstring = '';
1.325 albertel 1019: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1020: $currentstring .= $token->[2];
1021: } elsif ($target eq 'tex') {
1022: $currentstring .= '}';
1023: }
1024: return $currentstring;
1025: }
1026:
1.181 sakharuk 1027: #-- <address> tag (end tag required)
1.122 albertel 1028: sub start_address {
1029: my ($target,$token) = @_;
1030: my $currentstring = '';
1.325 albertel 1031: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1032: $currentstring .= $token->[4];
1033: } elsif ($target eq 'tex') {
1.179 sakharuk 1034: $currentstring .= '\textit{';
1.144 sakharuk 1035: }
1.122 albertel 1036: return $currentstring;
1037: }
1038:
1039: sub end_address {
1040: my ($target,$token) = @_;
1041: my $currentstring = '';
1.325 albertel 1042: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1043: $currentstring .= $token->[2];
1044: } elsif ($target eq 'tex') {
1.179 sakharuk 1045: $currentstring .= '}';
1.122 albertel 1046: }
1047: return $currentstring;
1048: }
1049:
1.181 sakharuk 1050: #-- <dfn> tag (end tag required)
1.122 albertel 1051: sub start_dfn {
1052: my ($target,$token) = @_;
1053: my $currentstring = '';
1.325 albertel 1054: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1055: $currentstring .= $token->[4];
1056: } elsif ($target eq 'tex') {
1.179 sakharuk 1057: $currentstring .= '\textit{';
1.122 albertel 1058: }
1059: return $currentstring;
1060: }
1061:
1062: sub end_dfn {
1063: my ($target,$token) = @_;
1064: my $currentstring = '';
1.325 albertel 1065: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1066: $currentstring .= $token->[2];
1067: } elsif ($target eq 'tex') {
1.179 sakharuk 1068: $currentstring .= '}';
1.144 sakharuk 1069: }
1.122 albertel 1070: return $currentstring;
1071: }
1072:
1.181 sakharuk 1073: #-- <tt> tag (end tag required)
1.122 albertel 1074: sub start_tt {
1075: my ($target,$token) = @_;
1076: my $currentstring = '';
1.325 albertel 1077: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1078: $currentstring .= $token->[4];
1079: } elsif ($target eq 'tex') {
1080: $currentstring .= '\texttt{';
1.144 sakharuk 1081: }
1.122 albertel 1082: return $currentstring;
1083: }
1084:
1085: sub end_tt {
1086: my ($target,$token) = @_;
1087: my $currentstring = '';
1.325 albertel 1088: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1089: $currentstring .= $token->[2];
1090: } elsif ($target eq 'tex') {
1091: $currentstring .= '}';
1092: }
1093: return $currentstring;
1094: }
1095:
1.181 sakharuk 1096: #-- <kbd> tag (end tag required)
1.122 albertel 1097: sub start_kbd {
1098: my ($target,$token) = @_;
1099: my $currentstring = '';
1.325 albertel 1100: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1101: $currentstring .= $token->[4];
1102: } elsif ($target eq 'tex') {
1.179 sakharuk 1103: $currentstring .= '\texttt{';
1.144 sakharuk 1104: }
1.122 albertel 1105: return $currentstring;
1106: }
1107:
1108: sub end_kbd {
1109: my ($target,$token) = @_;
1110: my $currentstring = '';
1.325 albertel 1111: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1112: $currentstring .= $token->[2];
1113: } elsif ($target eq 'tex') {
1.179 sakharuk 1114: $currentstring .= '}';
1.144 sakharuk 1115: }
1.122 albertel 1116: return $currentstring;
1117: }
1118:
1.181 sakharuk 1119: #-- <code> tag (end tag required)
1.122 albertel 1120: sub start_code {
1121: my ($target,$token) = @_;
1122: my $currentstring = '';
1.325 albertel 1123: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1124: $currentstring .= $token->[4];
1125: } elsif ($target eq 'tex') {
1126: $currentstring .= '\texttt{';
1127: }
1128: return $currentstring;
1129: }
1130:
1131: sub end_code {
1132: my ($target,$token) = @_;
1133: my $currentstring = '';
1.325 albertel 1134: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1135: $currentstring .= $token->[2];
1136: } elsif ($target eq 'tex') {
1137: $currentstring .= '}';
1138: }
1139: return $currentstring;
1140: }
1141:
1.181 sakharuk 1142: #-- <em> tag (end tag required)
1.122 albertel 1143: sub start_em {
1144: my ($target,$token) = @_;
1145: my $currentstring = '';
1.325 albertel 1146: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1147: $currentstring .= $token->[4];
1148: } elsif ($target eq 'tex') {
1149: $currentstring .= '\emph{';
1.144 sakharuk 1150: }
1.122 albertel 1151: return $currentstring;
1152: }
1153:
1154: sub end_em {
1155: my ($target,$token) = @_;
1156: my $currentstring = '';
1.325 albertel 1157: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1158: $currentstring .= $token->[2];
1159: } elsif ($target eq 'tex') {
1160: $currentstring .= '}';
1.144 sakharuk 1161: }
1.122 albertel 1162: return $currentstring;
1163: }
1164:
1.181 sakharuk 1165: #-- <q> tag (end tag required)
1.122 albertel 1166: sub start_q {
1167: my ($target,$token) = @_;
1168: my $currentstring = '';
1.325 albertel 1169: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1170: $currentstring .= $token->[4];
1171: } elsif ($target eq 'tex') {
1.179 sakharuk 1172: $currentstring .= '\emph{';
1.122 albertel 1173: }
1174: return $currentstring;
1175: }
1176:
1177: sub end_q {
1178: my ($target,$token) = @_;
1179: my $currentstring = '';
1.325 albertel 1180: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1181: $currentstring .= $token->[2];
1182: } elsif ($target eq 'tex') {
1.179 sakharuk 1183: $currentstring .= '}';
1.144 sakharuk 1184: }
1.122 albertel 1185: return $currentstring;
1186: }
1187:
1.277 foxr 1188: # <p> is a bit strange since it does not require a closing </p>
1189: # However in latex, we must often output closing stuff to end
1190: # environments and {}'s etc. Therefore we do all the work
1191: # of figuring out the ending strings in the start tag processing,
1192: # and provide a mechanism to output the stop text external
1193: # to tag processing.
1194: #
1195: {
1196:
1197: my $closing_string = ''; # String required to close <p>
1198:
1.279 foxr 1199: # Some tags are <p> fragile meaning that <p> inside of them
1200: # does not work within TeX mode. This is managed via the
1201: # counter below:
1202: #
1203:
1204: my $para_disabled = 0;
1205:
1206: sub disable_para {
1207: $para_disabled++;
1208: }
1209: sub enable_para {
1210: $para_disabled--;
1211: }
1212:
1213:
1.181 sakharuk 1214: #-- <p> tag (end tag optional)
1.198 sakharuk 1215: #optional attribute - align="center|left|right"
1.122 albertel 1216: sub start_p {
1.157 sakharuk 1217: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1218: my $currentstring = '';
1.325 albertel 1219: if ($target eq 'web' || $target eq 'webgrade') {
1.279 foxr 1220: $currentstring .= &end_p(); # close off prior para if in progress.
1.122 albertel 1221: $currentstring .= $token->[4];
1.279 foxr 1222: if (! ($currentstring =~ /\//)) {
1223: $closing_string = '</p>'; # Deal correctly with <p /> e.g.
1224: }
1225: } elsif ($target eq 'tex' && !$para_disabled) {
1.313 foxr 1226:
1.279 foxr 1227: $currentstring .= &end_p(); # close off prior para if in progress.
1.198 sakharuk 1228: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1229: if ($align eq 'center') {
1.333 albertel 1230: $currentstring .='\begin{center}\par ';
1.277 foxr 1231: $closing_string = '\end{center}';
1.309 albertel 1232: if (&is_inside_of($tagstack, "table")) {
1233: $currentstring = ¢er_correction().$currentstring;
1234: }
1.198 sakharuk 1235: } elsif ($align eq 'right') {
1.323 foxr 1236: $currentstring.="\n".'{\flushright ';
1237: # $currentstring.='\makebox['.$env{'form.textwidth'}.']{\hfill\llap{';
1238: $closing_string= "}\n";
1.198 sakharuk 1239: } elsif ($align eq 'left') {
1.323 foxr 1240: $currentstring.= "\n".'{\flushleft ';
1241: # $currentstring.='\noindent\makebox['.$env{'form.textwidth'}.']{{';
1242: $closing_string = "}\n";
1.216 matthew 1243: } else {
1.277 foxr 1244: $currentstring.='\par ';
1.313 foxr 1245: if (&is_inside_of($tagstack, 'table')) {
1.315 foxr 1246: $closing_string = '\vskip 0pt'; # Seems to be consistent with <p> in tables.
1.313 foxr 1247: } else {
1248: $closing_string = '\strut\\\\\strut ';
1249: }
1.216 matthew 1250: }
1.277 foxr 1251:
1.144 sakharuk 1252: }
1.122 albertel 1253: return $currentstring;
1254: }
1.277 foxr 1255: #
1256: # End paragraph processing just requires that we output the
1257: # closing string that was saved and blank it.
1258: sub end_p {
1.279 foxr 1259: # Note only 'tex' mode uses disable_para and enable_para
1260: # so we don't need to know the target in the check below:
1261:
1262: if (!$para_disabled) {
1263: my $current_string = $closing_string;
1264: $closing_string = ''; # Not in a para anymore.
1265: return $current_string;
1266: } else {
1267: return '';
1268: }
1.122 albertel 1269:
1270: }
1.277 foxr 1271: }
1.181 sakharuk 1272: #-- <br> tag (end tag forbidden)
1.122 albertel 1273: sub start_br {
1274: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1275: my $currentstring = '';
1.325 albertel 1276: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1277: $currentstring .= $token->[4];
1278: } elsif ($target eq 'tex') {
1.227 sakharuk 1279: my @tempo=@$tagstack;
1.229 sakharuk 1280: my $signal=0;
1.287 foxr 1281: # Not going to factor this to is_inside_of since that would require
1282: # multiple stack traversals.
1283: #
1.227 sakharuk 1284: for (my $i=$#tempo;$i>=0;$i--) {
1285: if (($tempo[$i] eq 'b') || ($tempo[$i] eq 'strong') ||
1.334 albertel 1286: ($tempo[$i] eq 'ol') || ($tempo[$i] eq 'ul')) {
1.229 sakharuk 1287: $signal=1;
1.334 albertel 1288: }
1289: if (($tempo[$i] eq 'td') || ($tempo[$i] eq 'th')) {
1.336 foxr 1290: $signal = 1;
1.227 sakharuk 1291: }
1292: }
1.375 foxr 1293: if ($signal != 1) {
1.219 sakharuk 1294: $currentstring .= '\strut \\\\ \strut ';
1.1 sakharuk 1295: }
1.355 foxr 1296:
1.144 sakharuk 1297: }
1.122 albertel 1298: return $currentstring;
1299: }
1300:
1301: sub end_br {
1302: my ($target,$token) = @_;
1303: my $currentstring = '';
1.325 albertel 1304: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1305: $currentstring .= $token->[2];
1306: }
1307: return $currentstring;
1308: }
1309:
1.181 sakharuk 1310: #-- <big> tag (end tag required)
1.122 albertel 1311: sub start_big {
1312: my ($target,$token) = @_;
1313: my $currentstring = '';
1.325 albertel 1314: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1315: $currentstring .= $token->[4];
1316: } elsif ($target eq 'tex') {
1.137 sakharuk 1317: $currentstring .= '{\large ';
1.144 sakharuk 1318: }
1.122 albertel 1319: return $currentstring;
1320: }
1321:
1322: sub end_big {
1323: my ($target,$token) = @_;
1324: my $currentstring = '';
1.325 albertel 1325: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1326: $currentstring .= $token->[2];
1327: } elsif ($target eq 'tex') {
1328: $currentstring .= '}';
1329: }
1330: return $currentstring;
1331: }
1332:
1.181 sakharuk 1333: #-- <small> tag (end tag required)
1.122 albertel 1334: sub start_small {
1335: my ($target,$token) = @_;
1336: my $currentstring = '';
1.325 albertel 1337: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1338: $currentstring .= $token->[4];
1339: } elsif ($target eq 'tex') {
1340: $currentstring .= '{\footnotesize ';
1.144 sakharuk 1341: }
1.122 albertel 1342: return $currentstring;
1343: }
1344:
1345: sub end_small {
1346: my ($target,$token) = @_;
1347: my $currentstring = '';
1.325 albertel 1348: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1349: $currentstring .= $token->[2];
1350: } elsif ($target eq 'tex') {
1351: $currentstring .= '}';
1352: }
1353: return $currentstring;
1354: }
1355:
1.181 sakharuk 1356: #-- <basefont> tag (end tag forbidden)
1.122 albertel 1357: sub start_basefont {
1.126 sakharuk 1358: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.122 albertel 1359: my $currentstring = '';
1.325 albertel 1360: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1361: $currentstring = $token->[4];
1.126 sakharuk 1362: } elsif ($target eq 'tex') {
1363: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1364: if (defined $basesize) {
1365: $currentstring = '{\\'.$basesize.' ';
1366: }
1367: }
1.122 albertel 1368: return $currentstring;
1369: }
1370:
1371: sub end_basefont {
1.126 sakharuk 1372: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1373: my $currentstring = '';
1.325 albertel 1374: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1375: $currentstring = $token->[4];
1.126 sakharuk 1376: } elsif ($target eq 'tex') {
1377: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1378: if (defined $basesize) {
1379: $currentstring = '}';
1380: }
1381: }
1.122 albertel 1382: return $currentstring;
1383: }
1384:
1.181 sakharuk 1385: #-- <font> tag (end tag required)
1.122 albertel 1386: sub start_font {
1387: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1388: my $currentstring = '';
1.325 albertel 1389: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1390: my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
1.204 albertel 1391: if ($face!~/symbol/i) {
1.267 albertel 1392: if (($env{'browser.fontenhance'} eq 'on') ||
1393: ($env{'browser.blackwhite'} eq 'on')) { return ''; }
1.155 www 1394: }
1.122 albertel 1395: $currentstring = $token->[4];
1.126 sakharuk 1396: } elsif ($target eq 'tex') {
1397: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1398: if (defined $fontsize) {
1399: $currentstring = '{\\'.$fontsize.' ';
1400: }
1401: }
1.122 albertel 1402: return $currentstring;
1403: }
1404:
1405: sub end_font {
1406: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1407: my $currentstring = '';
1.325 albertel 1408: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1409: $currentstring = $token->[2];
1.126 sakharuk 1410: } elsif ($target eq 'tex') {
1411: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1412: if (defined $fontsize) {
1413: $currentstring = '}';
1414: }
1415: }
1.122 albertel 1416: return $currentstring;
1417: }
1418:
1.181 sakharuk 1419: #-- <strike> tag (end tag required)
1.122 albertel 1420: sub start_strike {
1421: my ($target,$token) = @_;
1422: my $currentstring = '';
1.325 albertel 1423: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1424: $currentstring .= $token->[4];
1425: } elsif ($target eq 'tex') {
1426: &Apache::lonxml::startredirection();
1427: }
1428: return $currentstring;
1429: }
1430:
1431: sub end_strike {
1432: my ($target,$token) = @_;
1433: my $currentstring = '';
1.325 albertel 1434: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1435: $currentstring .= $token->[2];
1436: } elsif ($target eq 'tex') {
1437: $currentstring=&Apache::lonxml::endredirection();
1438: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1439: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1440: $currentstring=~s/(\S)\s*$/$1\}/;
1441: }
1442: return $currentstring;
1443: }
1444:
1.181 sakharuk 1445: #-- <s> tag (end tag required)
1.122 albertel 1446: sub start_s {
1447: my ($target,$token) = @_;
1448: my $currentstring = '';
1.325 albertel 1449: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1450: $currentstring .= $token->[4];
1451: } elsif ($target eq 'tex') {
1452: &Apache::lonxml::startredirection();
1453: }
1454: return $currentstring;
1455: }
1456:
1457: sub end_s {
1458: my ($target,$token) = @_;
1459: my $currentstring = '';
1.325 albertel 1460: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1461: $currentstring .= $token->[2];
1462: } elsif ($target eq 'tex') {
1463: $currentstring=&Apache::lonxml::endredirection();
1464: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1465: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1466: $currentstring=~s/(\S)\s*$/$1\}/;
1467: }
1468: return $currentstring;
1469: }
1470:
1.181 sakharuk 1471: #-- <sub> tag (end tag required)
1.122 albertel 1472: sub start_sub {
1473: my ($target,$token) = @_;
1474: my $currentstring = '';
1.325 albertel 1475: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1476: $currentstring .= $token->[4];
1477: } elsif ($target eq 'tex') {
1.355 foxr 1478: $currentstring .= '\raisebox{-\smallskipamount}{\scriptsize{';
1.122 albertel 1479: }
1480: return $currentstring;
1481: }
1482:
1483: sub end_sub {
1484: my ($target,$token) = @_;
1485: my $currentstring = '';
1.325 albertel 1486: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1487: $currentstring .= $token->[2];
1488: } elsif ($target eq 'tex') {
1.202 sakharuk 1489: $currentstring .= '}}';
1.122 albertel 1490: }
1491: return $currentstring;
1492: }
1493:
1.181 sakharuk 1494: #-- <sup> tag (end tag required)
1.122 albertel 1495: sub start_sup {
1496: my ($target,$token) = @_;
1497: my $currentstring = '';
1.325 albertel 1498: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1499: $currentstring .= $token->[4];
1500: } elsif ($target eq 'tex') {
1.355 foxr 1501: $currentstring .= '\raisebox{\smallskipamount}{\scriptsize{';
1.122 albertel 1502: }
1503: return $currentstring;
1504: }
1505:
1506: sub end_sup {
1507: my ($target,$token) = @_;
1508: my $currentstring = '';
1.325 albertel 1509: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1510: $currentstring .= $token->[2];
1511: } elsif ($target eq 'tex') {
1.202 sakharuk 1512: $currentstring .= '}}';
1.122 albertel 1513: }
1514: return $currentstring;
1515: }
1516:
1.181 sakharuk 1517: #-- <hr> tag (end tag forbidden)
1.122 albertel 1518: sub start_hr {
1.124 sakharuk 1519: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1520: my $currentstring = &end_p(); # End enclosing para.
1.325 albertel 1521: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1522: $currentstring .= $token->[4];
1523: } elsif ($target eq 'tex') {
1.361 foxr 1524:
1525: # <hr /> can't be inside of <sup><sub> thank you LaTeX.
1526: #
1527: my $restart_sub = 0;
1528: my $restart_sup = 0;
1529:
1530: # Since <sub> and <sup> are simple tags it's ok to turn off/on
1531: # using the start_ stop_ functions.. those tags only care about
1532: # $target.
1533:
1534: if (&is_inside_of($tagstack, "sub")) {
1535: $restart_sub = 1;
1536: $currentstring .= &end_sub($target, $token, $tagstack,
1537: $parstack, $parser, $safeeval);
1538: }
1539: if (&is_inside_of($tagstack, "sup")) {
1540: $restart_sup = 1;
1541: $currentstring .= &end_sup($target, $token, $tagstack,
1542: $parstack, $parser, $safeeval);
1543: }
1544:
1.149 sakharuk 1545: my $LaTeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1.124 sakharuk 1546: if (defined $LaTeXwidth) {
1547: if ($LaTeXwidth=~/^%/) {
1548: substr($LaTeXwidth,0,1)='';
1549: $LaTeXwidth=($LaTeXwidth/100).'\textwidth';
1550: }
1551: } else {
1.148 sakharuk 1552: $LaTeXwidth ='0.9\textwidth';
1.124 sakharuk 1553: }
1554: my ($pre,$post);
1555: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1556: if (($align eq 'center') || (not defined $align)) {
1557: $pre=''; $post='';
1558: } elsif ($align eq 'left') {
1559: $pre='\rlap{'; $post='} \hfill';
1560: } elsif ($align eq 'right') {
1561: $pre=' \hfill \llap{'; $post='}';
1562: }
1.148 sakharuk 1563: $currentstring .= ' \vskip 0 mm \noindent\makebox['.$LaTeXwidth.']{'.$pre.'\makebox['.
1.124 sakharuk 1564: $LaTeXwidth.'][b]{\hrulefill}'.$post.'}\vskip 0 mm ';
1.361 foxr 1565: # Turn stuff back on that we can't be inside of.
1566:
1567: if ($restart_sub) {
1568: $currentstring .= &start_sub($target, $token, $tagstack,
1569: $parstack, $parser, $safeeval);
1570: }
1571: if ($restart_sup) {
1572: $currentstring .= &start_sup($target, $token, $tagstack,
1573: $parstack, $parser, $safeeval);
1574: }
1.122 albertel 1575: }
1576: return $currentstring;
1577: }
1578:
1579: sub end_hr {
1580: my ($target,$token) = @_;
1581: my $currentstring = '';
1.325 albertel 1582: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1583: $currentstring .= $token->[2];
1.148 sakharuk 1584: }
1.122 albertel 1585: return $currentstring;
1586: }
1587:
1.181 sakharuk 1588: #-- <div> tag (end tag required)
1.280 foxr 1589: {
1590:
1591: # Since div can be nested, the stack below is used
1592: # in 'tex' mode to store the ending strings
1593: # for the div stack.
1594:
1595: my @div_end_stack;
1596:
1.122 albertel 1597: sub start_div {
1.280 foxr 1598: my ($target,$token, $tagstack, $parstack, $parser, $safeeval) = @_;
1.279 foxr 1599: my $currentstring = &end_p(); # Close enclosing para.
1.325 albertel 1600: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1601: $currentstring .= $token->[4];
1602: }
1.280 foxr 1603: if ($target eq 'tex') {
1604: # 4 possible alignments: left, right, center, and -missing-.
1.380 foxr 1605: # If inside a table row, we must let the table logic
1606: # do the alignment, however.
1607: #
1.280 foxr 1608:
1609: my $endstring = '';
1610:
1611: my $align = lc(&Apache::lonxml::get_param('align', $parstack,
1612: $safeeval, undef, 1));
1613: if ($align eq 'center') {
1614: $currentstring .= '\begin{center}';
1615: $endstring = '\end{center}';
1.309 albertel 1616: if (&is_inside_of($tagstack, "table")) {
1617: $currentstring = ¢er_correction().$currentstring;
1.380 foxr 1618: $endstring .= ¢er_end_correction();
1.309 albertel 1619: }
1.280 foxr 1620: }
1621: elsif ($align eq 'right') {
1622: $currentstring .= '\begin{flushright}';
1623: $endstring .= '\end{flushright}';
1624: } elsif ($align eq 'left') {
1625: $currentstring .= '\begin{flushleft}';
1626: $endstring = '\end{flushleft}';
1627: } else {
1628:
1629: }
1630: $currentstring .= "\n"; # For human readability.
1631: $endstring = "\n$endstring\n"; # For human readability
1632: push(@div_end_stack, $endstring);
1633: }
1.122 albertel 1634: return $currentstring;
1635: }
1636:
1637: sub end_div {
1638: my ($target,$token) = @_;
1639: my $currentstring = '';
1.325 albertel 1640: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1641: $currentstring .= $token->[2];
1.280 foxr 1642: }
1643: if ($target eq 'tex') {
1644: my $endstring = pop @div_end_stack;
1645: $currentstring .= $endstring;
1646: }
1.122 albertel 1647: return $currentstring;
1648: }
1.280 foxr 1649: }
1.122 albertel 1650:
1.181 sakharuk 1651: #-- <a> tag (end tag required)
1.122 albertel 1652: sub start_a {
1.149 sakharuk 1653: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1654: my $currentstring = '';
1.325 albertel 1655: if ($target eq 'web' || $target eq 'webgrade') {
1.250 albertel 1656: my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
1657: undef,1);
1658: $currentstring=&Apache::lonenc::encrypt_ref($token,{'href'=>$href});
1.122 albertel 1659: }
1660: return $currentstring;
1661: }
1662:
1663: sub end_a {
1.168 albertel 1664: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1665: my $currentstring = '';
1.325 albertel 1666: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1667: $currentstring .= $token->[2];
1668: }
1.351 foxr 1669: if ($target eq 'tex') {
1.352 albertel 1670: my $href =
1671: &Apache::lonxml::get_param('href',$parstack,$safeeval,undef,1);
1672: my $name =
1673: &Apache::lonxml::get_param('name',$parstack,$safeeval,undef,1);
1.382 www 1674: my $uriprint =
1675: &Apache::lonxml::get_param('uriprint',$parstack,$safeeval,undef,1);
1676: my $anchorprint =
1677: &Apache::lonxml::get_param('anchorprint',$parstack,$safeeval,undef,1);
1678: if (($href =~ /\S/) && ($uriprint=~/^on|uriprint|yes|1$/i)) {
1.352 albertel 1679: $href =~ s/([^\\])%/$1\\\%/g;
1.365 foxr 1680: # Substitute special symbols... and allow line breaks at each /
1681: #
1682: $href = &Apache::lonxml::latex_special_symbols($href);
1683: $href =~ s/\//\/\\-/g; # Map / to /\- to allow hyphenation.
1684: $currentstring .= ' ({\tt URI:'.$href.'})';
1.382 www 1685: } elsif (($name =~ /\S/) && ($anchorprint=~/^on|anchorprint|yes|1$/i)) {
1.352 albertel 1686: $currentstring .= ' ({\tt Anchor:'.&Apache::lonxml::latex_special_symbols($name).'})';
1.351 foxr 1687: } else {
1688: $currentstring.='';
1689: }
1690: }
1.122 albertel 1691: return $currentstring;
1692: }
1693:
1.181 sakharuk 1694: #-- <li> tag (end tag optional)
1.122 albertel 1695: sub start_li {
1.168 albertel 1696: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1697: my $currentstring = '';
1.325 albertel 1698: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1699: $currentstring = $token->[4];
1700: } elsif ($target eq 'tex') {
1.237 sakharuk 1701: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1702: my $value=&Apache::lonxml::get_param('value',$parstack,$safeeval,undef,0);
1.238 albertel 1703: #FIXME need to support types i and I
1704: if ($type=~/disc/) {
1705: $currentstring .= ' \item[$\bullet$] ';
1706: } elsif ($type=~/circle/) {
1707: $currentstring .= ' \item[$\circ$] ';
1.146 sakharuk 1708: } elsif ($type=~/square/) {
1.238 albertel 1709: $currentstring .= ' \item[$\diamond$] ';
1710: } elsif ($type eq '1') {
1711: $currentstring .= ' \item['.($Apache::londefdef::list_index+1).'.]';
1.237 sakharuk 1712: } elsif ($type eq 'A') {
1.238 albertel 1713: $currentstring .= ' \item['.('A'..'Z')[$Apache::londefdef::list_index].'.]';
1.237 sakharuk 1714: } elsif ($type eq 'a') {
1.238 albertel 1715: $currentstring .= ' \item['.('a'..'z')[$Apache::londefdef::list_index].'.]';
1.237 sakharuk 1716: } elsif ($value ne '') {
1717: $currentstring .= ' \item['.$value.'] ';
1.122 albertel 1718: } else {
1.146 sakharuk 1719: $currentstring .= ' \item ';
1.122 albertel 1720: }
1.238 albertel 1721: $Apache::londefdef::list_index++;
1722: }
1.122 albertel 1723: return $currentstring;
1724: }
1725:
1726: sub end_li {
1727: my ($target,$token) = @_;
1.279 foxr 1728: my $currentstring = &end_p(); # In case there's a <p> in the <li>
1.325 albertel 1729: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1730: $currentstring .= $token->[2];
1.122 albertel 1731: }
1732: return $currentstring;
1733: }
1734:
1.181 sakharuk 1735: #-- <u> tag (end tag required)
1.122 albertel 1736: sub start_u {
1737: my ($target,$token) = @_;
1738: my $currentstring = '';
1.325 albertel 1739: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1740: $currentstring .= $token->[4];
1741: } elsif ($target eq 'tex') {
1742: &Apache::lonxml::startredirection();
1743: }
1744: return $currentstring;
1745: }
1746:
1747: sub end_u {
1748: my ($target,$token) = @_;
1749: my $currentstring = '';
1.325 albertel 1750: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1751: $currentstring .= $token->[2];
1752: } elsif ($target eq 'tex') {
1753: $currentstring=&Apache::lonxml::endredirection();
1754: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1755: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1756: $currentstring=~s/(\S)\s*$/$1\}/;
1757: }
1758: return $currentstring;
1759: }
1760:
1.181 sakharuk 1761: #-- <ul> tag (end tag required)
1.122 albertel 1762: sub start_ul {
1.125 sakharuk 1763: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1764: my $currentstring = &end_p(); # Close off enclosing list.
1.325 albertel 1765: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1766: $currentstring .= $token->[4];
1.122 albertel 1767: } elsif ($target eq 'tex') {
1.125 sakharuk 1768: my $TeXtype=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1.238 albertel 1769: $Apache::londefdef::list_index=0;
1.125 sakharuk 1770: if ($TeXtype eq 'disc') {
1.222 sakharuk 1771: $currentstring .= '\renewcommand{\labelitemi}{$\bullet$}'.
1772: '\renewcommand{\labelitemii}{$\bullet$}'.
1773: '\renewcommand{\labelitemiii}{$\bullet$}'.
1774: '\renewcommand{\labelitemiv}{$\bullet$}';
1.125 sakharuk 1775: } elsif ($TeXtype eq 'circle') {
1.222 sakharuk 1776: $currentstring .= '\renewcommand{\labelitemi}{$\circ$}'.
1777: '\renewcommand{\labelitemii}{$\circ$}'.
1778: '\renewcommand{\labelitemiii}{$\circ$}'.
1779: '\renewcommand{\labelitemiv}{$\circ$}';
1.125 sakharuk 1780: } elsif ($TeXtype eq 'square') {
1.222 sakharuk 1781: $currentstring .= '\renewcommand{\labelitemi}{$\diamond$}'.
1782: '\renewcommand{\labelitemii}{$\diamond$}'.
1783: '\renewcommand{\labelitemiii}{$\diamond$}'.
1784: '\renewcommand{\labelitemiv}{$\diamond$}';
1.125 sakharuk 1785: }
1.222 sakharuk 1786: $currentstring .= '\strut \begin{itemize}';
1.122 albertel 1787: }
1788: return $currentstring;
1789: }
1790:
1791: sub end_ul {
1792: my ($target,$token) = @_;
1793: my $currentstring = '';
1.325 albertel 1794: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1795: $currentstring = $token->[2];
1796: } elsif ($target eq 'tex') {
1.222 sakharuk 1797: $currentstring = '\end{itemize} \renewcommand{\labelitemi}{$\bullet$}'.
1798: '\renewcommand{\labelitemii}{$\bullet$}'.
1799: '\renewcommand{\labelitemiii}{$\bullet$}'.
1800: '\renewcommand{\labelitemiv}{$\bullet$}\strut ';
1.122 albertel 1801: }
1802: return $currentstring;
1803: }
1804:
1.181 sakharuk 1805: #-- <menu> tag (end tag required)
1.122 albertel 1806: sub start_menu {
1807: my ($target,$token) = @_;
1808: my $currentstring = '';
1.325 albertel 1809: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1810: $currentstring = $token->[4];
1811: } elsif ($target eq 'tex') {
1812: $currentstring = " \\begin{itemize} ";
1813: }
1814: return $currentstring;
1815: }
1816:
1817: sub end_menu {
1818: my ($target,$token) = @_;
1819: my $currentstring = '';
1.325 albertel 1820: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1821: $currentstring = $token->[2];
1822: } elsif ($target eq 'tex') {
1823: $currentstring = " \\end{itemize}";
1824: }
1825: return $currentstring;
1826: }
1827:
1.181 sakharuk 1828: #-- <dir> tag (end tag required)
1.122 albertel 1829: sub start_dir {
1830: my ($target,$token) = @_;
1.279 foxr 1831: my $currentstring = &end_p(); # In case there's a <p> prior to the list.
1.325 albertel 1832: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1833: $currentstring .= $token->[4];
1.122 albertel 1834: } elsif ($target eq 'tex') {
1.277 foxr 1835: $currentstring .= " \\begin{itemize} ";
1.122 albertel 1836: }
1837: return $currentstring;
1838: }
1839:
1840: sub end_dir {
1841: my ($target,$token) = @_;
1842: my $currentstring = '';
1.325 albertel 1843: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1844: $currentstring = $token->[2];
1845: } elsif ($target eq 'tex') {
1846: $currentstring = " \\end{itemize}";
1847: }
1848: return $currentstring;
1849: }
1850:
1.181 sakharuk 1851: #-- <ol> tag (end tag required)
1.122 albertel 1852: sub start_ol {
1.125 sakharuk 1853: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1854: my $currentstring = &end_p(); # In case there's a <p> prior to the list.
1.325 albertel 1855: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1856: $currentstring .= $token->[4];
1.122 albertel 1857: } elsif ($target eq 'tex') {
1.238 albertel 1858: $Apache::londefdef::list_index=0;
1.125 sakharuk 1859: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1860: if ($type eq '1') {
1.222 sakharuk 1861: $currentstring .= '\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1862: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1863: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1864: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}';
1.125 sakharuk 1865: } elsif ($type eq 'A') {
1.222 sakharuk 1866: $currentstring .= '\renewcommand{\labelenumi}{\Alph{enumi}.}'.
1867: '\renewcommand{\labelenumii}{\Alph{enumii}.}'.
1868: '\renewcommand{\labelenumiii}{\Alph{enumiii}.}'.
1869: '\renewcommand{\labelenumiv}{\Alph{enumiv}.}';
1.125 sakharuk 1870: } elsif ($type eq 'a') {
1.222 sakharuk 1871: $currentstring .= '\renewcommand{\labelenumi}{\alph{enumi}.}'.
1872: '\renewcommand{\labelenumii}{\alph{enumii}.}'.
1873: '\renewcommand{\labelenumiii}{\alph{enumiii}.}'.
1874: '\renewcommand{\labelenumiv}{\alph{enumiv}.}';
1.125 sakharuk 1875: } elsif ($type eq 'i') {
1.222 sakharuk 1876: $currentstring .= '\renewcommand{\labelenumi}{\roman{enumi}.}'.
1877: '\renewcommand{\labelenumii}{\roman{enumii}.}'.
1878: '\renewcommand{\labelenumiii}{\roman{enumiii}.}'.
1879: '\renewcommand{\labelenumiv}{\roman{enumiv}.}';
1.125 sakharuk 1880: } elsif ($type eq 'I') {
1.222 sakharuk 1881: $currentstring .= '\renewcommand{\labelenumi}{\Roman{enumi}.}'.
1882: '\renewcommand{\labelenumii}{\Roman{enumii}.}'.
1883: '\renewcommand{\labelenumiii}{\Roman{enumiii}.}'.
1884: '\renewcommand{\labelenumiv}{\Roman{enumiv}.}';
1.125 sakharuk 1885: }
1.222 sakharuk 1886: $currentstring .= '\strut \begin{enumerate}';
1.122 albertel 1887: }
1888: return $currentstring;
1889: }
1890:
1891: sub end_ol {
1892: my ($target,$token) = @_;
1893: my $currentstring = '';
1.325 albertel 1894: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1895: $currentstring = $token->[2];
1896: } elsif ($target eq 'tex') {
1.222 sakharuk 1897: $currentstring = '\end{enumerate}\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1898: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1899: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1900: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}\strut ';
1.122 albertel 1901: }
1902: return $currentstring;
1903: }
1904:
1.181 sakharuk 1905: #-- <dl> tag (end tag required)
1.122 albertel 1906: sub start_dl {
1907: my ($target,$token) = @_;
1.279 foxr 1908: my $currentstring = &end_p(); # In case there's a <p> unclosed prior to the list.
1.325 albertel 1909: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1910: $currentstring .= $token->[4];
1.122 albertel 1911: } elsif ($target eq 'tex') {
1.277 foxr 1912: $currentstring .= '\begin{description}';
1.243 albertel 1913: $Apache::londefdef::DL++;
1914: push(@Apache::londefdef::description,[]);
1915: $Apache::londefdef::DD[$Apache::londefdef::DL]=0;
1916: $Apache::londefdef::DT[$Apache::londefdef::DL]=0;
1.244 albertel 1917: $Apache::londefdef::seenDT[$Apache::londefdef::DL]=0;
1.122 albertel 1918: }
1919: return $currentstring;
1920: }
1921:
1922: sub end_dl {
1.174 sakharuk 1923: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1924: my $currentstring = '';
1.325 albertel 1925: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1926: $currentstring = $token->[2];
1927: } elsif ($target eq 'tex') {
1.243 albertel 1928: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1929: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
1930: foreach my $element (@{$Apache::londefdef::description[-1]}) {
1.174 sakharuk 1931: $currentstring.=' '.$element.' ';
1932: }
1.243 albertel 1933: pop(@Apache::londefdef::description);
1.174 sakharuk 1934: $currentstring.='\end{description}';
1.243 albertel 1935: delete($Apache::londefdef::DD[$Apache::londefdef::DL]);
1936: delete($Apache::londefdef::DT[$Apache::londefdef::DL]);
1.244 albertel 1937: delete($Apache::londefdef::seenDT[$Apache::londefdef::DL]);
1.243 albertel 1938: $Apache::londefdef::DL--;
1.122 albertel 1939: }
1940: return $currentstring;
1941: }
1942:
1.172 sakharuk 1943: #-- <dt> tag (end tag optional)
1.122 albertel 1944: sub start_dt {
1.172 sakharuk 1945: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1946: my $currentstring='';
1.325 albertel 1947: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1948: $currentstring = $token->[4];
1949: } elsif ($target eq 'tex') {
1.243 albertel 1950: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1951: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
1.174 sakharuk 1952: &Apache::lonxml::startredirection();
1.243 albertel 1953: $Apache::londefdef::DT[-1]++;
1.244 albertel 1954: $Apache::londefdef::seenDT[-1]=1;
1.122 albertel 1955: }
1956: return $currentstring;
1957: }
1958:
1959: sub end_dt {
1.172 sakharuk 1960: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1961: my $currentstring = '';
1.325 albertel 1962: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1963: $currentstring = $token->[2];
1964: } elsif ($target eq 'tex') {
1.243 albertel 1965: if ($Apache::londefdef::DT[-1]) {
1966: my $data=&item_cleanup();
1.244 albertel 1967: push(@{$Apache::londefdef::description[-1]},'\item['.$data.'] \strut \vskip 0mm');
1.243 albertel 1968: $Apache::londefdef::DT[-1]--;
1969: }
1.122 albertel 1970: }
1971: return $currentstring;
1972: }
1973:
1.173 sakharuk 1974: sub item_cleanup {
1.174 sakharuk 1975: my $item=&Apache::lonxml::endredirection();
1.173 sakharuk 1976: $item=~s/\\begin{center}//g;
1977: $item=~s/\\end{center}//g;
1978: return $item;
1979: }
1980:
1.181 sakharuk 1981: #-- <dd> tag (end tag optional)
1.122 albertel 1982: sub start_dd {
1.147 sakharuk 1983: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1984: my $currentstring = '';
1.325 albertel 1985: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1986: $currentstring = $token->[4];
1.147 sakharuk 1987: } elsif ($target eq 'tex') {
1.243 albertel 1988: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1989: if ($Apache::londefdef::DD[-1]) { &end_dd(@_);}
1.244 albertel 1990: if (!$Apache::londefdef::seenDT[-1]) {
1991: push(@{$Apache::londefdef::description[-1]},'\item[\strut] \strut \vskip 0mm ');
1992: }
1.243 albertel 1993: push(@{$Apache::londefdef::description[-1]},'');
1994: $Apache::londefdef::description[-1]->[-1].=' \strut ';
1995: $Apache::londefdef::DD[-1]++;
1.174 sakharuk 1996: &Apache::lonxml::startredirection();
1.122 albertel 1997: }
1998: return $currentstring;
1999: }
2000:
2001: sub end_dd {
1.174 sakharuk 2002: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 2003: my $currentstring = '';
1.325 albertel 2004: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2005: $currentstring = $token->[2];
1.174 sakharuk 2006: } elsif ($target eq 'tex') {
1.243 albertel 2007: $Apache::londefdef::description[-1]->[-1].=
2008: &Apache::lonxml::endredirection().' \vskip 0mm ';
2009: $Apache::londefdef::DD[-1]--;
1.174 sakharuk 2010: }
1.122 albertel 2011: return $currentstring;
2012: }
2013:
1.181 sakharuk 2014: #-- <table> tag (end tag required)
1.277 foxr 2015: # <table> also ends any prior <p> that is not closed.
2016: # but, unless I allow <p>'s to nest, that's the
2017: # only way I could think of to allow <p> in
2018: # <tr> <th> bodies
2019: #
1.206 sakharuk 2020: #list of supported attributes: border,width,TeXwidth
1.91 sakharuk 2021: sub start_table {
2022: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 foxr 2023: my $textwidth = '';
1.279 foxr 2024: my $currentstring = &end_p();
1.325 albertel 2025: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 2026: $currentstring .= $token->[4];
1.91 sakharuk 2027: } elsif ($target eq 'tex') {
1.344 albertel 2028: push(@Apache::londefdef::table, {});
1.91 sakharuk 2029: $Apache::londefdef::table[-1]{'row_number'} = -1;
1.222 sakharuk 2030: #maximum table's width (default coincides with text line length)
1.206 sakharuk 2031: if ($#Apache::londefdef::table==0) {
1.267 albertel 2032: $textwidth=&recalc($env{'form.textwidth'}); #result is always in mm
1.206 sakharuk 2033: $textwidth=~/(\d+\.?\d*)/;
1.358 foxr 2034: $textwidth=0.85*$1; #accounts "internal" LaTeX space for table frame
1.206 sakharuk 2035: } else {
2036: if ($Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}]=~/\d/) {
2037: #the maximum width of nested table is determined by LATeX width of parent cell
2038: $textwidth=$Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}];
2039: } else {
2040: #try to use all space not used before (minus 5% for LaTeX table internal) - rather silly
1.228 sakharuk 2041: $textwidth=$Apache::londefdef::table[-2]{'width'};
1.206 sakharuk 2042: for (my $i=0;$i<$Apache::londefdef::table[-2]{'counter_columns'};$i++) {
2043: $textwidth=$textwidth-$Apache::londefdef::table[-2]{'TeXlen'}[0][$i];
2044: }
2045: }
2046: }
1.294 foxr 2047:
2048: # width either comes forced from the TeXwidth or the width parameters.
2049: # in either case it can be a percentage or absolute width.
1.311 albertel 2050: # in the width case we ignore absolute width
1.126 sakharuk 2051: my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1.308 albertel 2052: if (!defined($TeXwidth)) {
1.311 albertel 2053: my $htmlwidth = &Apache::lonxml::get_param('width',$parstack,
2054: $safeeval,undef,1);
2055: if ($htmlwidth =~ /%/) {
2056: $TeXwidth = $htmlwidth;
2057: } else {
2058: $TeXwidth = $textwidth;
2059: }
1.364 foxr 2060: }
2061: # if the width is specified as a % it is converted to an absolute width.
2062: # otherwise.. just plugged right in the hash
2063:
1.294 foxr 2064: if ($TeXwidth=~/%/) {
1.126 sakharuk 2065: $TeXwidth=~/(\d+)/;
1.206 sakharuk 2066: $Apache::londefdef::table[-1]{'width'}=$1*$textwidth/100;
1.126 sakharuk 2067: } else {
1.206 sakharuk 2068: $Apache::londefdef::table[-1]{'width'}=$TeXwidth;
1.316 foxr 2069: }
2070: # In the end, however the table width cannot be wider than $textwidth...
2071:
2072: if ($Apache::londefdef::table[-1]{'width'} > $textwidth) {
2073: $Apache::londefdef::table[-1]{'width'} = $textwidth;
2074: }
1.126 sakharuk 2075: #table's border
1.206 sakharuk 2076: my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval);
1.208 sakharuk 2077: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
1.91 sakharuk 2078: unless (defined $border) { $border = 0; }
2079: if ($border) {
2080: $Apache::londefdef::table[-1]{'hinc'} = '\hline ';
2081: $Apache::londefdef::table[-1]{'vinc'} = '&';
2082: $Apache::londefdef::table[-1]{'vvinc'} = '|';
2083: } else {
2084: $Apache::londefdef::table[-1]{'hinc'} = '';
2085: $Apache::londefdef::table[-1]{'vinc'} = '&';
2086: $Apache::londefdef::table[-1]{'vvinc'} = '';
2087: }
1.206 sakharuk 2088: if ($#Apache::londefdef::table==0) {
1.281 foxr 2089: # Note that \newline seems to destroy the alignment envs.
2090: # $Apache::londefdef::table[-1]{'output'}='\strut\newline\strut\setlength{\tabcolsep}{1 mm}';
2091: $Apache::londefdef::table[-1]{'output'}='\strut'.'\\\\'."\n".'\strut\setlength{\tabcolsep}{1 mm}';
1.206 sakharuk 2092: }
2093: $Apache::londefdef::table[-1]{'output'}.=' \noindent \begin{tabular} ';
2094: $Apache::londefdef::table[-1]{'TeXlen'}=[];
2095: $Apache::londefdef::table[-1]{'objectlen'}=[];
1.229 sakharuk 2096: $Apache::londefdef::table[-1]{'objectsignal'}=[];
1.206 sakharuk 2097: $Apache::londefdef::table[-1]{'maxlen'}=[];
2098: $Apache::londefdef::table[-1]{'minlen'}=[];
2099: $Apache::londefdef::table[-1]{'content'}=[];
2100: $Apache::londefdef::table[-1]{'align'}=[];
1.340 foxr 2101: $currentstring.=' \keephidden{NEW TABLE ENTRY}';
1.295 foxr 2102:
1.294 foxr 2103:
2104: }
1.91 sakharuk 2105: return $currentstring;
2106: }
1.122 albertel 2107:
2108: sub end_table {
2109: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2110: my $currentstring = '';
1.325 albertel 2111: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2112: $currentstring = $token->[2];
2113: } elsif ($target eq 'tex') {
1.372 foxr 2114: my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval);
1.122 albertel 2115: my $inmemory = '';
2116: my $output = '';
1.206 sakharuk 2117: my $WARNING='';
2118: #width of columns from TeXwidth attributes
1.294 foxr 2119:
1.384 foxr 2120: # Protect against unbalanced </table> tag.
2121:
2122: if (scalar(@Apache::londefdef::table) > 0) {
2123:
1.206 sakharuk 2124: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2125: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2126: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]<$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn]) {
2127: $Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]=$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn];
2128: }
2129: }
2130: }
2131: #free space and number of empty columns
2132: my ($available_space,$empty_columns)=($Apache::londefdef::table[-1]{'width'},0);
1.228 sakharuk 2133: if ($#Apache::londefdef::table ne 0) {$available_space=0.9*$available_space;}
1.206 sakharuk 2134: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2135: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]==0) {
2136: $empty_columns++;
2137: } else {
2138: $available_space=$available_space-$Apache::londefdef::table[-1]{'TeXlen'}[0][$jn];
2139: }
2140: }
1.358 foxr 2141:
1.206 sakharuk 2142: #boundaries for contents columns
2143: my @min_len=();#columns can not be narrower
2144: my @max_len=();#maximum length of column
1.357 foxr 2145: my $avg_max;
2146: my $avg_min;
2147: my $counter_cols = $Apache::londefdef::table[-1]{'counter_columns'};
2148: for (my $jn=0;$jn<=$counter_cols; $jn++) {
1.206 sakharuk 2149: my ($localmin,$localmax)=(0,0);
2150: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2151: if ($localmin<$Apache::londefdef::table[-1]{'minlen'}[$in][$jn]) {
2152: $localmin=$Apache::londefdef::table[-1]{'minlen'}[$in][$jn];
2153: }
2154: if ($localmax<$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn]) {
2155: $localmax=$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn];
2156: }
2157: }
2158: push @min_len, $localmin;
2159: push @max_len, $localmax;
1.357 foxr 2160: $avg_max = $localmax + $avg_max;
2161: $avg_min = $localmin + $avg_min;
2162: }
2163: # Does not really matter what the average max/min are if there are no cols.
2164: # and this prevents div 0 in that case.
2165:
2166: if ($counter_cols != 0) {
2167: $avg_max = $avg_max/$counter_cols;
2168: $avg_min = $avg_min/$counter_cols;
2169: }
2170:
2171:
2172: # I don't think the below is needed.. but just in case:
2173:
2174: if ($avg_min > $avg_max) {
2175: my $temp = $avg_min;
2176: $avg_min = $avg_max;
2177: $avg_max = $temp;
1.122 albertel 2178: }
1.357 foxr 2179:
2180:
2181: for (my $jn=0;$jn<=$counter_cols;$jn++) {
1.206 sakharuk 2182: my $localmin=0,;
2183: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2184: if ($localmin<$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn]) {
2185: $localmin=$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn];
2186: }
2187: }
1.229 sakharuk 2188: if ($max_len[$jn]<$localmin) {
2189: $max_len[$jn]=$localmin;
2190: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
2191: }#object size is bigger
2192: if ($min_len[$jn]<$localmin) {
2193: $min_len[$jn]=$localmin;
2194: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
2195: }#object size is bigger
1.206 sakharuk 2196: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]!=0) {
2197: $min_len[$jn]=0;
2198: $max_len[$jn]=0;
2199: }
1.357 foxr 2200: # Spans seem to be really bothered by max/min = 0. So if we have one
2201: # make it an average joe max/min.
2202:
2203: if ($max_len[$jn] == 0) {
2204: $max_len[$jn] = $avg_max;
2205: }
2206: if ($min_len[$jn] == 0) {
2207: $min_len[$jn] = $avg_min;
2208: }
2209:
1.206 sakharuk 2210: }
2211: #final adjustment of column width
2212: my @fwidth=@{$Apache::londefdef::table[-1]{'TeXlen'}[0]};#final width array
2213: my @adjust=();
2214: #step 1. adjustment by maximum value
1.370 albertel 2215: my $space_needed=0;
1.206 sakharuk 2216: for (my $jn=0;$jn<=$#max_len;$jn++) {
1.370 albertel 2217: $space_needed=$space_needed+$max_len[$jn];
1.206 sakharuk 2218: }
1.370 albertel 2219: if ($space_needed<=$available_space) {
1.362 foxr 2220:
1.206 sakharuk 2221: for (my $jn=0;$jn<=$#max_len;$jn++) {
2222: if ($fwidth[$jn]==0) {
2223: $fwidth[$jn]=$max_len[$jn];
1.53 sakharuk 2224: }
1.51 sakharuk 2225: }
1.206 sakharuk 2226: } else {
2227: #step 2. adjustment by minimum value (estimation)
1.370 albertel 2228: $space_needed=0;
1.206 sakharuk 2229: for (my $jn=0;$jn<=$#min_len;$jn++) {
1.370 albertel 2230: $space_needed+=$min_len[$jn];
1.206 sakharuk 2231: }
1.370 albertel 2232: if ($space_needed>$available_space) {
1.206 sakharuk 2233: $WARNING=' \textbf{NOT ENOUGH SPACE FOR TABLE} ';
2234: for (my $jn=0;$jn<=$#max_len;$jn++) {
2235: if ($fwidth[$jn]==0) {
2236: $fwidth[$jn]=$min_len[$jn];
2237: }
2238: }
1.229 sakharuk 2239: #check if we have objects which can be scaled
2240: my $how_many_to_scale=0;
2241: my @to_scale=();
2242: for (my $jn=0;$jn<=$#max_len;$jn++) {
2243: if ($Apache::londefdef::table[-1]{'objectsignal'}[$jn] eq '1') {
2244: $how_many_to_scale++;
2245: push @to_scale, $jn;
2246: }
2247: }
2248: if ($how_many_to_scale>0) {
1.370 albertel 2249: my $space_to_adjust=($space_needed-$available_space)/$how_many_to_scale;
1.229 sakharuk 2250: foreach my $jn (@to_scale) {
2251: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2252: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/;
2253: if ($1 ne '') {
2254: my $current_length=&recalc($1);
2255: $current_length=~/(\d+\.?\d*)/;
2256: $current_length=$current_length-$space_to_adjust;
2257: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/width=$current_length mm/;
2258: }
2259: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/\[(\d+\.?\d*)\s*mm\]/;
2260: if ($1 ne '') {
2261: my $current_length=$1;
2262: $current_length=$current_length-$space_to_adjust;
2263: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/\[(\d+\.?\d*)\s*mm\]/\[$current_length mm\]/;
2264: }
2265: }
2266: $fwidth[$jn]=$fwidth[$jn]-$space_to_adjust;
2267: }
2268: }
1.206 sakharuk 2269: } else {
2270: #step 3. adjustment over minimal + corrections
1.370 albertel 2271: my $enlarge_coef=$available_space/$space_needed;
1.206 sakharuk 2272: my $acsessive=0;
2273: for (my $jn=0;$jn<=$#min_len;$jn++) {
2274: $adjust[$jn]=$min_len[$jn]*$enlarge_coef;
2275: if ($adjust[$jn]>$max_len[$jn]) {
2276: $fwidth[$jn]=$max_len[$jn];
2277: $acsessive=$acsessive+$adjust[$jn]-$max_len[$jn];
2278: $adjust[$jn]=0;
1.357 foxr 2279:
1.206 sakharuk 2280: }
2281: }
2282: if ($acsessive>0) {
2283: #we have an excess of space and can redistribute it
2284: my $notempty_columns=0;
2285: for (my $jn=0;$jn<=$#min_len;$jn++) {
2286: if ($adjust[$jn]!=0) {
2287: $notempty_columns++;
2288: }
2289: }
2290: my $per_column=$acsessive/$notempty_columns;
2291: for (my $jn=0;$jn<=$#min_len;$jn++) {
2292: if ($adjust[$jn]!=0) {
2293: $adjust[$jn]+=$per_column;
2294: $fwidth[$jn]=$adjust[$jn];
2295: }
1.223 sakharuk 2296: }
2297: } else {
2298: for (my $jn=0;$jn<=$#min_len;$jn++) {
2299: $fwidth[$jn]=$adjust[$jn];
1.206 sakharuk 2300: }
2301: }
1.203 sakharuk 2302: }
2303: }
1.364 foxr 2304: # use all available width or specified width as if not specified,
2305: # the specified width gets defaulted to the available width.
2306:
2307: my $current=0;
2308: for (my $i=0;$i<=$#fwidth;$i++) {
2309: $current+=$fwidth[$i];
2310: }
1.371 albertel 2311: if ($current == 0) {
2312: $current = $Apache::londefdef::table[-1]{'width'};
2313: }
1.364 foxr 2314: my $coef=$Apache::londefdef::table[-1]{'width'}/$current;
2315: for (my $i=0;$i<=$#fwidth;$i++) {
2316: $fwidth[$i]*=$coef;
1.206 sakharuk 2317: }
2318: #removing of empty columns if allowed
1.208 sakharuk 2319: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
1.206 sakharuk 2320: if ($permission eq 'yes') {
2321: my @cleaned_table=();
2322: my @cleaned_header=();
2323: my $colind=0;
2324: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2325: if ($fwidth[$jn]!=0) {
2326: #we need to copy column
2327: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2328: $cleaned_table[$in][$colind]=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
2329: $cleaned_header[$colind]=$fwidth[$jn];
2330: }
2331: $colind++;
2332: }
1.122 albertel 2333: }
1.206 sakharuk 2334: $Apache::londefdef::table[-1]{'content'}=\@cleaned_table;
2335: @fwidth=@cleaned_header;
1.122 albertel 2336: }
1.359 foxr 2337:
1.358 foxr 2338:
1.206 sakharuk 2339: #construct header of the table
2340: my $header_of_table = '{'.$Apache::londefdef::table[-1]{'vvinc'};
2341: for (my $in=0;$in<=$#fwidth;$in++) {
2342: $header_of_table.='p{'.$fwidth[$in].' mm}'.$Apache::londefdef::table[-1]{'vvinc'};
2343: }
2344: $header_of_table .= '}';
1.357 foxr 2345:
1.126 sakharuk 2346: #fill the table
2347: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1.306 foxr 2348: my $have_rowspan = 0;
1.206 sakharuk 2349: for (my $jn=0;$jn<=$#fwidth;$jn++) {
1.320 foxr 2350:
2351: #-----------------------------------------------------------
2352: # I think this order of doing things will ensure that
2353: # single rowspan, columspan and combined row/colspans will
2354: # work correctly. LaTeX is delicate here.
2355: # RF.
1.356 foxr 2356:
1.320 foxr 2357: # Start a rowspan if necessary:
1.356 foxr 2358:
2359: my $primary_col_width = $fwidth[$jn]; # Width of primary column.
1.320 foxr 2360: my $rowspan = $Apache::londefdef::table[-1]{'rowspan'}[$in][$jn];
2361: my $colspan = $Apache::londefdef::table[-1]{'colspan'}[$in][$jn];
1.304 foxr 2362: #
2363: # Do the appropriate magic if this has a colspan
2364: #
1.356 foxr 2365:
1.372 foxr 2366: my $border_char = "";
2367: if ($border) {
2368: $border_char = "|";
2369: }
1.356 foxr 2370: my $spanwidth = 0;
1.304 foxr 2371: if ($colspan > 1) {
1.336 foxr 2372: for (my $spancol = $jn; $spancol < $jn + $colspan; $spancol++) {
2373: $spanwidth += $fwidth[$spancol];
2374: }
1.304 foxr 2375: $output .= '\multicolumn{'.
2376: $colspan
1.337 foxr 2377: ."}";
2378: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
1.372 foxr 2379: $output .= '{'.$border_char.'c'.$border_char.'}{';
1.337 foxr 2380: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
1.372 foxr 2381: $output .= '{'.$border_char.'r'.$border_char.'}{';
1.337 foxr 2382: }
2383: else {
1.372 foxr 2384: $output .= '{'.$border_char."p{$spanwidth mm}".$border_char.'}{';
1.337 foxr 2385: }
1.356 foxr 2386:
2387: } else {
2388: $spanwidth = $primary_col_width; # If no span width will be just colwidth
1.304 foxr 2389: }
1.306 foxr 2390:
1.337 foxr 2391: # Rowspan... if colspan is 1, and there's an alignment we'll need
2392: # to kick in a multicolumn in order to get the alignment spec.
2393: # this must precede the multirow or LaTex gets quite upset.
2394: # Naturally if colspan > 1 we've already done that above ^
2395: #
2396: my $multirow_aligned = 0;
1.306 foxr 2397: if ($rowspan > 1) {
1.337 foxr 2398: if ($colspan == 1) {
2399: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
1.372 foxr 2400: $output .= '\multicolumn{1}{'.$border_char.'c'.$border_char.'}{';
1.337 foxr 2401: $multirow_aligned = 1;
2402: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
1.372 foxr 2403: $output .= '\multicolumn{1}{'.$border_char.'r'.$border_char.'}{';
1.337 foxr 2404: $multirow_aligned = 1;
2405: }
2406: }
1.306 foxr 2407: $have_rowspan++;
1.356 foxr 2408: if ($multirow_aligned) {
2409: $output .= '\multirow{'.$rowspan.'}[0]{*}{';
2410: } else {
2411: $output .= '\multirow{'.$rowspan."}[0]{$spanwidth mm}{";
2412: }
1.350 albertel 2413:
2414: $Apache::londefdef::table[-1]{'content'}[$in][$jn] =~
2415: s{^\s*\\par\s*}{};
2416: $Apache::londefdef::table[-1]{'content'}[$in][$jn] =~
2417: s{\s*\\vskip\s*0pt\s*$}{};
1.356 foxr 2418:
1.337 foxr 2419: #
2420: # If we did not throw in a multicolumn to align, then add
2421: # an extra {
2422: # so we close correctly without having to keep additional state
2423: # around
2424: #
2425: if (!$multirow_aligned) {
2426: $output .= '{';
2427: }
1.306 foxr 2428: }
2429: if (($rowspan eq '^') || ($rowspan eq '_')) {
2430: $have_rowspan++;
2431: }
1.356 foxr 2432: #--------------------------------------------------------------
1.306 foxr 2433:
1.337 foxr 2434:
2435: # For right and center alignment of single cells.
2436: # we are going to use a multicolumn with a span of 1 to specify alignment.
2437: #
2438: if ($colspan == 1 && $rowspan == 1) {
2439: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
1.372 foxr 2440: $output .= '\multicolumn{1}{'.$border_char.'c'.$border_char.'}{';
1.337 foxr 2441: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
1.372 foxr 2442: $output .= '\multicolumn{1}{'.$border_char.'r'.$border_char.'}{';
1.337 foxr 2443: }
1.206 sakharuk 2444: }
1.337 foxr 2445:
1.206 sakharuk 2446: $output.=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
1.337 foxr 2447:
2448: if (($colspan == 1 && $rowspan == 1) &&
2449: (($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') ||
2450: ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r'))) {
2451: $output .= '}';
1.206 sakharuk 2452: }
1.337 foxr 2453:
1.306 foxr 2454: # Close off any open multirow:
2455:
2456: if ($rowspan > 1) {
1.337 foxr 2457: $output .= '}}';
1.306 foxr 2458: }
1.304 foxr 2459: # Close off the colspan...
2460: #
2461: if ($colspan > 1) {
2462: $output .= '}';
2463: $jn += $colspan-1; # Adjust for number of rows really left.
2464: }
1.206 sakharuk 2465: if ($jn!=$#fwidth) {$output.=' '.$Apache::londefdef::table[-1]{'vinc'};}
2466: }
1.306 foxr 2467: # If have_rowspan > 0, and borders are on, then
2468: # we need to do more than put an \hline at the bottom of row.
2469: # we need to do the appropriate \cline to ensure that
2470: # the spanned rows don't have \hlines through them.
2471:
2472: if (($Apache::londefdef::table[-1]{'hinc'} =~ /\\hline/) && $have_rowspan) {
2473: $output .= ' \\\\ ';
2474: for (my $jn=0; $jn<=$#fwidth;$jn++) {
2475: my $rowspan = $Apache::londefdef::table[-1]{'rowspan'}[$in][$jn];
1.320 foxr 2476: if ($rowspan ne "^") {
2477: if (($rowspan <= 1) || ($rowspan eq '_')) {
2478: my $column = $jn+1;
2479: $output .= '\cline{'.$column.'-'.$column.'} ';
2480: }
1.306 foxr 2481: }
2482: }
2483:
2484: } else {
2485: $output.=' \\\\ '.$Apache::londefdef::table[-1]{'hinc'}.' ';
2486: }
1.122 albertel 2487: }
1.281 foxr 2488: # Note that \newline destroys alignment env's produced by e.g. <div>
2489: # $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut\newline\strut ';
2490: $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut'.'\\\\'."\n".'\strut ';
1.127 sakharuk 2491: if ($#Apache::londefdef::table > 0) {
2492: my $inmemory = $Apache::londefdef::table[-1]{'output'};
1.294 foxr 2493: # Figure out max/and min width by summing us and then
2494: # apply that to the current column of the table we nest in
2495: # if it's larger than the current width or the current width
2496: # is undefined.
2497: #
2498: my $min_nested_width = 0;
2499: my $max_nested_width = 0;
2500: for (my $col = 0; $col <= $Apache::londefdef::table[-1]{'counter_columns'}; $col++) {
2501: $min_nested_width += $min_len[$col];
2502: $max_nested_width += $max_len[$col];
1.300 foxr 2503:
1.294 foxr 2504: }
2505: # Fudge in an extra 5 mm for borders etc:
2506:
2507: $min_nested_width += 5;
2508: $max_nested_width += 5;
2509:
2510: my $outer_column = $Apache::londefdef::table[-2]{'counter_columns'};
2511: my $outer_row = $Apache::londefdef::table[-2]{'row_number'};
2512: if ($min_nested_width > $Apache::londefdef::table[-2]{'minlen'}[$outer_row][$outer_column]) {
2513: $Apache::londefdef::table[-2]{'minlen'}[$outer_row][$outer_column] = $min_nested_width;
2514: }
2515: if ($max_nested_width > $Apache::londefdef::table[-2]{'maxlen'}[$outer_row][$outer_column]) {
2516: $Apache::londefdef::table[-2]{'maxlen'}[$outer_row][$outer_column] = $max_nested_width;
2517: }
2518:
1.127 sakharuk 2519: pop @Apache::londefdef::table;
1.129 sakharuk 2520: push @{$Apache::londefdef::table[-1]{'include'}}, $inmemory;
1.127 sakharuk 2521: } else {
2522: $currentstring .= $Apache::londefdef::table[-1]{'output'};
2523: pop @Apache::londefdef::table;
1.143 sakharuk 2524: undef @Apache::londefdef::table;
1.127 sakharuk 2525: }
1.122 albertel 2526: }
1.384 foxr 2527: }
1.122 albertel 2528: return $currentstring;
2529: }
2530:
1.166 sakharuk 2531: #-- <tr> tag (end tag optional)
1.122 albertel 2532: sub start_tr {
2533: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2534: my $currentstring = '';
1.325 albertel 2535: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2536: $currentstring = $token->[4];
2537: } elsif ($target eq 'tex') {
2538: $Apache::londefdef::table[-1]{'row_number'}++;
1.206 sakharuk 2539: my $alignchar=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.122 albertel 2540: if ($alignchar ne '') {
1.206 sakharuk 2541: push @ {$Apache::londefdef::table[-1]{'rows'} },substr($alignchar,0,1);
1.122 albertel 2542: } else {
2543: push @ {$Apache::londefdef::table[-1]{'rows'} }, 'l';
2544: }
2545: push ( @{ $Apache::londefdef::table[-1]{'rowdata'} }, $Apache::londefdef::table[-1]{'hinc'});
1.300 foxr 2546: #
2547: # Need to save the number of table columns to preserve the max # columns.
2548: #
2549: $Apache::londefdef::table[-1]{'prior_columns'} = $Apache::londefdef::table[-1]{'counter_columns'};
1.122 albertel 2550: $Apache::londefdef::table[-1]{'counter_columns'} = -1;
1.206 sakharuk 2551: push @ {$Apache::londefdef::table[-1]{'TeXlen'}}, [];
2552: push @ {$Apache::londefdef::table[-1]{'objectlen'}}, [];
2553: push @ {$Apache::londefdef::table[-1]{'minlen'}}, [];
2554: push @ {$Apache::londefdef::table[-1]{'maxlen'}}, [];
2555: push @ {$Apache::londefdef::table[-1]{'content'}}, [];
1.122 albertel 2556: }
2557: return $currentstring;
2558: }
2559:
2560: sub end_tr {
1.160 sakharuk 2561: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 2562: my $currentstring = &end_p(); # Close any pending <p> in the row.
1.325 albertel 2563: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 2564: $currentstring .= $token->[2];
1.122 albertel 2565: } elsif ($target eq 'tex') {
1.160 sakharuk 2566: if ($Apache::londefdef::TD_redirection) {
2567: &end_td_tex($parstack,$parser,$safeeval);
2568: }
1.300 foxr 2569: # Counter columns must be the maximum number of columns seen
2570: # in the table so far so:
2571: if ($Apache::londefdef::table[-1]{'prior_columns'} > $Apache::londefdef::table[-1]{'counter_columns'}) {
2572: $Apache::londefdef::table[-1]{'counter_columns'} = $Apache::londefdef::table[-1]{'prior_columns'};
2573: }
1.295 foxr 2574:
2575:
1.294 foxr 2576:
1.122 albertel 2577: }
2578: return $currentstring;
2579: }
2580:
1.166 sakharuk 2581: #-- <td> tag (end tag optional)
1.122 albertel 2582: sub start_td {
2583: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2584: my $currentstring = '';
1.325 albertel 2585: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2586: $currentstring = $token->[4];
2587: } elsif ($target eq 'tex') {
1.160 sakharuk 2588: $Apache::londefdef::TD_redirection = 1;
1.159 sakharuk 2589: &tag_check('tr','td',$tagstack,$parstack,$parser,$safeeval);
1.122 albertel 2590: }
2591: return $currentstring;
2592: }
1.159 sakharuk 2593:
2594: sub tag_check {
2595: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
1.160 sakharuk 2596: my @ar=@$parstack;
2597: for (my $i=$#ar-1;$i>=0;$i--) {
2598: if (lc($$tagstack[$i]) eq $good_tag) {
2599: &start_td_tex($parstack,$parser,$safeeval);
2600: last;
2601: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2602: splice @ar, $i+1;
2603: &end_td_tex(\@ar,$parser,$safeeval);
2604: &start_td_tex($parstack,$parser,$safeeval);
2605: last;
1.159 sakharuk 2606: }
1.160 sakharuk 2607: }
1.159 sakharuk 2608: return '';
2609: }
2610:
2611: sub start_td_tex {
2612: my ($parstack,$parser,$safeeval) = @_;
1.206 sakharuk 2613: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2614: if ($alignchar eq '') {
2615: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
1.159 sakharuk 2616: }
1.206 sakharuk 2617: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
1.159 sakharuk 2618: $Apache::londefdef::table[-1]{'counter_columns'}++;
1.206 sakharuk 2619: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2620: if (defined $TeXwidth) {
2621: my $current_length=&recalc($TeXwidth);
2622: $current_length=~/(\d+\.?\d*)/;
2623: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2624: }
1.159 sakharuk 2625: &Apache::lonxml::startredirection();
2626: return '';
2627: }
2628:
2629: sub end_td_tex {
2630: my ($parstack,$parser,$safeeval) = @_;
1.304 foxr 2631: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2632: my $current_column = $Apache::londefdef::table[-1]{'counter_columns'};
1.303 foxr 2633: my $data = &Apache::lonxml::endredirection();
2634:
1.305 foxr 2635: # The rowspan array of the table indicates which cells are part of a span.
2636: # n indicates the start of a span set of n rows.
2637: # ^ indicates a cell that continues a span set.
1.306 foxr 2638: # _ indicates the cell is at the bottom of a span set.
1.305 foxr 2639: # If this and subsequent cells are part of a rowspan, we must
2640: # push along the row until we find one that is not.
2641:
2642: while ((defined $Apache::londefdef::table[-1]{'rowspan'}[$current_row] [$current_column])
1.306 foxr 2643: && ($Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column] =~ /[\^\_]/)) {
1.305 foxr 2644: # Part of a span.
2645: push @ {$Apache::londefdef::table[-1]{'content'}[-1]}, '';
2646: $current_column++;
2647: }
2648: $Apache::londefdef::table[-1]{'counter_columns'} = $current_column;
2649:
2650:
1.320 foxr 2651: # Get the column and row spans.
2652: # Colspan can be done via \multicolumn if I can figure out the data structs.
2653:
2654: my $colspan = &Apache::lonxml::get_param('colspan', $parstack, $safeeval, undef, 0);
2655: if (!$colspan) {
2656: $colspan = 1;
2657: }
1.305 foxr 2658:
2659: my $rowspan = &Apache::lonxml::get_param('rowspan', $parstack, $safeeval, undef, 0);
2660: if (!$rowspan) {
2661: $rowspan = 1;
2662: }
2663:
1.303 foxr 2664:
1.305 foxr 2665:
1.320 foxr 2666: for (my $c = 0; $c < $colspan; $c++) {
2667: $Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column+$c] = $rowspan;
2668: for (my $i = 1; $i < $rowspan; $i++) {
2669: $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column+$c] = '^';
2670: if ($i == ($rowspan-1)) {
2671: $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column+$c] = '_';
2672: }
1.306 foxr 2673: }
1.305 foxr 2674: }
1.304 foxr 2675:
1.159 sakharuk 2676: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2677: if (defined $TeXwidth) {
1.357 foxr 2678: for (my $c = 0; $c < $colspan; $c++) {
2679: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2680: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2681: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2682: }
1.159 sakharuk 2683: } else {
1.206 sakharuk 2684: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2685: my $garbage_data=$data;
2686: my $fwidth=0;
2687: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2688: my $current_length=&recalc($1);
2689: $current_length=~/(\d+\.?\d*)/;
2690: if ($fwidth<$1) {$fwidth=$1;}
2691: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2692: }
2693: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2694: my $current_length=$1;
2695: if ($fwidth<$current_length) {$fwidth=$current_length;}
2696: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2697: }
1.357 foxr 2698: for (my $c = 0; $c < $colspan; $c++) {
2699: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2700: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2701: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2702: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2703: }
1.231 sakharuk 2704: } 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)*/) {
2705: my $garbage_data=$data;
2706: my $fwidth=0;
2707: while ($garbage_data=~/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)\s*\}/) {
2708: my $current_length=&recalc($1);
2709: $current_length=~/(\d+\.?\d*)/;
2710: if ($fwidth<$1) {$fwidth=$1;}
2711: $garbage_data=~s/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2712: }
2713: while ($garbage_data=~/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2714: my $current_length=&recalc($1);
2715: $current_length=~/(\d+\.?\d*)/;
2716: if ($fwidth<$1) {$fwidth=$1;}
2717: $garbage_data=~s/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2718: }
1.357 foxr 2719: for (my $c = 0; $c < $colspan; $c++) {
2720: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2721: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2722: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2723: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2724: }
1.231 sakharuk 2725: $data=~s/\\\\\s*$//;
1.159 sakharuk 2726: } else {
1.166 sakharuk 2727: $data=~s/^\s+(\S.*)/$1/;
1.159 sakharuk 2728: $data=~s/(.*\S)\s+$/$1/;
1.166 sakharuk 2729: $data=~s/(\s)+/$1/;
1.206 sakharuk 2730: my ($current_length,$min_length)=(0,0);
1.166 sakharuk 2731: if ($data=~/\\vskip/) {
2732: my $newdata=$data;
2733: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2734: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2735: foreach my $elementdata (@newdata) {
1.206 sakharuk 2736: my $lengthnewdata=2.5*&LATEX_length($elementdata);
1.166 sakharuk 2737: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
1.206 sakharuk 2738: my @words=split(/ /,$elementdata);
2739: foreach my $word (@words) {
2740: my $lengthword=2.5*&LATEX_length($word);
2741: if ($min_length<$lengthword) {$min_length=$lengthword;}
2742: }
1.166 sakharuk 2743: }
2744: } else {
1.206 sakharuk 2745: $current_length=2.5*&LATEX_length($data);
2746: my @words=split(/ /,$data);
2747: foreach my $word (@words) {
1.228 sakharuk 2748: my $lengthword=2*&LATEX_length($word);
1.206 sakharuk 2749: if ($min_length<$lengthword) {$min_length=$lengthword;}
2750: }
1.166 sakharuk 2751: }
1.357 foxr 2752: for (my $c = 0; $c < $colspan; $c++) {
2753: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2754: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2755: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2756: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
2757: }
1.159 sakharuk 2758: }
2759: }
1.302 foxr 2760: # Substitute all of the tables nested in this cell in their appropriate places.
2761:
2762:
2763: my $nested_count = $#{$Apache::londefdef::table[-1]{'include'}}; # This one is constant...
2764: for (my $in=0; $in<=$nested_count; $in++) {
1.301 foxr 2765: my $nested = shift @{$Apache::londefdef::table[-1]{'include'}};
2766: $nested =~ s/\\end\{tabular\}\\strut\\\\/\\end\{tabular\}/;
2767: # $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2768: $data =~ s/\\keephidden\{NEW TABLE ENTRY\}/$nested/;
2769:
2770: }
2771: # Should be be killing off the 'include' elements as they're used up?
1.305 foxr 2772:
1.206 sakharuk 2773: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
1.305 foxr 2774:
1.304 foxr 2775:
2776:
2777:
2778: # the colspan array will indicate how many columns will be spanned by this
2779: # cell..this requires that counter_columns also be adjusted accordingly
2780: # so that the next bunch of text goes in the right cell. Note that since
2781: # counter_columns is incremented in the start_td_tex, we adjust by colspan-1.
2782: #
2783:
2784: $Apache::londefdef::table[-1]{'counter_columns'} += $colspan -1;
2785: for (my $i = 0; $i < ($colspan -1); $i++) {
2786: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },'';
2787: }
1.320 foxr 2788: for (my $r = 0; $r < $rowspan; $r++) {
2789: $Apache::londefdef::table[-1]{'colspan'}[$current_row+$r][$current_column] = $colspan;
2790: # Put empty text in spanned cols.
2791:
2792: }
2793:
1.304 foxr 2794:
2795:
1.301 foxr 2796: return '';
1.159 sakharuk 2797: }
2798:
1.122 albertel 2799: sub end_td {
1.126 sakharuk 2800: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 2801: my $currentstring = '';
1.325 albertel 2802: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2803: $currentstring = $token->[2];
2804: } elsif ($target eq 'tex') {
1.160 sakharuk 2805: $Apache::londefdef::TD_redirection =0;
1.159 sakharuk 2806: &end_td_tex($parstack,$parser,$safeeval);
1.122 albertel 2807: }
2808: return $currentstring;
2809: }
2810:
1.166 sakharuk 2811: #-- <th> tag (end tag optional)
1.122 albertel 2812: sub start_th {
2813: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2814: my $currentstring = '';
1.325 albertel 2815: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2816: $currentstring = $token->[4];
2817: } elsif ($target eq 'tex') {
1.230 sakharuk 2818: $Apache::londefdef::TD_redirection = 1;
2819: &tagg_check('tr','th',$tagstack,$parstack,$parser,$safeeval);
1.122 albertel 2820: }
2821: return $currentstring;
1.130 sakharuk 2822: }
1.230 sakharuk 2823:
2824: sub tagg_check {
2825: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
2826: my @ar=@$parstack;
2827: for (my $i=$#ar-1;$i>=0;$i--) {
2828: if (lc($$tagstack[$i]) eq $good_tag) {
2829: &start_th_tex($parstack,$parser,$safeeval);
2830: last;
2831: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2832: splice @ar, $i+1;
2833: &end_th_tex(\@ar,$parser,$safeeval);
2834: &start_th_tex($parstack,$parser,$safeeval);
2835: last;
2836: }
2837: }
2838: return '';
2839: }
2840:
2841: sub start_th_tex {
2842: my ($parstack,$parser,$safeeval) = @_;
2843: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2844: if ($alignchar eq '') {
2845: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
2846: }
2847: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
2848: $Apache::londefdef::table[-1]{'counter_columns'}++;
2849: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2850: if (defined $TeXwidth) {
2851: my $current_length=&recalc($TeXwidth);
2852: $current_length=~/(\d+\.?\d*)/;
2853: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2854: }
2855: &Apache::lonxml::startredirection();
2856: return '';
2857: }
2858:
2859: sub end_th_tex {
2860: my ($parstack,$parser,$safeeval) = @_;
2861: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2862: my $data=&Apache::lonxml::endredirection();
2863: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2864: if (defined $TeXwidth) {
2865: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2866: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2867: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2868: } else {
2869: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2870: my $garbage_data=$data;
2871: my $fwidth=0;
2872: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2873: my $current_length=&recalc($1);
2874: $current_length=~/(\d+\.?\d*)/;
2875: if ($fwidth<$1) {$fwidth=$1;}
2876: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2877: }
2878: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2879: my $current_length=$1;
2880: if ($fwidth<$current_length) {$fwidth=$current_length;}
2881: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2882: }
2883: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2884: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2885: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2886: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2887: } else {
2888: $data=~s/^\s+(\S.*)/$1/;
2889: $data=~s/(.*\S)\s+$/$1/;
2890: $data=~s/(\s)+/$1/;
2891: my ($current_length,$min_length)=(0,0);
2892: if ($data=~/\\vskip/) {
2893: my $newdata=$data;
2894: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2895: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2896: foreach my $elementdata (@newdata) {
2897: my $lengthnewdata=2.5*&LATEX_length($elementdata);
2898: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
2899: my @words=split(/ /,$elementdata);
2900: foreach my $word (@words) {
2901: my $lengthword=2.5*&LATEX_length($word);
2902: if ($min_length<$lengthword) {$min_length=$lengthword;}
2903: }
2904: }
2905: } else {
2906: $current_length=2.5*&LATEX_length($data);
2907: my @words=split(/ /,$data);
2908: foreach my $word (@words) {
2909: my $lengthword=2*&LATEX_length($word);
2910: if ($min_length<$lengthword) {$min_length=$lengthword;}
2911: }
2912: }
2913: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2914: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2915: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2916: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
2917: }
2918: }
2919: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
2920: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2921: }
2922: #make data bold
2923: $data='\textbf{'.$data.'}';
2924: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
2925: return'';
2926: }
2927:
1.122 albertel 2928: sub end_th {
1.130 sakharuk 2929: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 2930: my $currentstring = &end_p(); # Close any open <p> in the row.
1.325 albertel 2931: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 2932: $currentstring .= $token->[2];
1.122 albertel 2933: } elsif ($target eq 'tex') {
1.230 sakharuk 2934: $Apache::londefdef::TD_redirection =0;
2935: &end_th_tex($parstack,$parser,$safeeval);
1.122 albertel 2936: }
2937: return $currentstring;
2938: }
1.230 sakharuk 2939:
1.181 sakharuk 2940: #-- <img> tag (end tag forbidden)
1.249 foxr 2941: #
2942: # Render the <IMG> tag.
2943: # <IMG> has the following attributes (in addition to the
2944: # standard HTML ones:
2945: # TeXwrap - Governs how the tex target will try to wrap text around
2946: # horizontally aligned images.
2947: # TeXwidth - The width of the image when rendered for print (mm).
2948: # TeXheight - The height of the image when rendered for print (mm)
2949: # (Note there seems to also be support for this as a % of page size)
2950: #
1.122 albertel 2951: sub start_img {
1.299 albertel 2952: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 2953: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,
2954: undef,1);
1.325 albertel 2955: if (! $src &&
2956: ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex')
2957: ) {
1.299 albertel 2958: my $inside = &Apache::lonxml::get_all_text("/img",$parser,$style);
1.189 albertel 2959: return '';
2960: }
1.290 albertel 2961: &Apache::lonxml::extlink($src);
1.122 albertel 2962: my $currentstring = '';
2963: my $scaling = .3;
1.249 foxr 2964:
2965: # Render unto browsers that which are the browser's...
2966:
1.325 albertel 2967: if ($target eq 'web' || $target eq 'webgrade') {
1.267 albertel 2968: if ($env{'browser.imagesuppress'} ne 'on') {
1.322 albertel 2969: my $enc = ('yes' eq
2970: lc(&Apache::lonxml::get_param('encrypturl',$parstack,
2971: $safeeval)));
2972: $currentstring.=&Apache::lonenc::encrypt_ref($token,{'src'=>$src},
2973: $enc);
1.122 albertel 2974: } else {
1.322 albertel 2975: my $alttag = &Apache::lonxml::get_param('alt',$parstack,$safeeval,
2976: undef,1);
2977: if (!$alttag) {
2978: $alttag = &Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2979: $src);
1.51 sakharuk 2980: }
1.158 sakharuk 2981: $currentstring.='[IMAGE: '.$alttag.']';
1.1 sakharuk 2982: }
1.249 foxr 2983:
2984: # and render unto TeX that which is LaTeX
2985:
1.122 albertel 2986: } elsif ($target eq 'tex') {
1.248 foxr 2987: #
2988: # The alignment will require some superstructure to be put around
2989: # the \includegraphics stuff. At present we can only partially
2990: # simulate the alignments offered by html.
2991: #
2992: #
2993: my $align = lc(&Apache::lonxml::get_param('align',
2994: $parstack,
2995: $safeeval,
2996: undef,1));
2997: if(!$align) {
1.287 foxr 2998: $align = "bottom"; # This is html's default so it's ours too.
1.248 foxr 2999: }
3000: #
3001: &Apache::lonxml::debug("Alignemnt = $align");
3002: # LaTeX's image/text wrapping is really bad since it wants to
3003: # make figures float.
3004: # The user has the optional parameter (applicable only to l/r
3005: # alignment to use the picins/parpic directive to get wrapped text
3006: # this is also imperfect.. that's why we give them a choice...
3007: # so they can't yell at us for our choice.
3008: #
3009: my $latex_rendering = &Apache::lonxml::get_param('TeXwrap',
3010: $parstack,
3011: $safeeval,
3012: undef,0);
1.312 foxr 3013: # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering");
1.248 foxr 3014: if(!$latex_rendering) {
1.312 foxr 3015: $latex_rendering = "texwrap";
3016: }
3017: # using texwrap inside a table does not work. So, if after all of this,
3018: # texwrap is on, we turn it off if we detect we're in a table:
3019: #
3020: if (($latex_rendering eq 'texwrap') && &is_inside_of($tagstack, "table")) {
3021: $latex_rendering = 'parpic';
1.248 foxr 3022: }
1.323 foxr 3023:
1.312 foxr 3024: # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering image file: $src");
1.248 foxr 3025:
1.390 foxr 3026: #if original bmp/gif/jpg/png file exist do following:
1.266 albertel 3027: my $origsrc=$src;
1.256 albertel 3028: my ($path,$file) = &get_eps_image($src);
1.341 foxr 3029: # &Apache::lonnet::logthis("Image source: $src result: $path $file");
1.122 albertel 3030: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.261 foxr 3031: &Apache::lonxml::debug("path = $path file = $file src = $src");
1.192 sakharuk 3032: if (-e $src) {
1.261 foxr 3033: &Apache::lonxml::debug("$src exists");
1.256 albertel 3034: my ($height_param,$width_param)=
1.266 albertel 3035: &image_size($origsrc,0.3,$parstack,$safeeval);
3036: my $size;
3037: if ($width_param) { $size.='width='.$width_param.' mm,'; }
3038: if ($height_param) { $size.='height='.$height_param.' mm]'; }
1.341 foxr 3039: # Default size if not able to extract that (e.g. eps image).
3040:
3041: # &Apache::lonnet::logthis("Size = $size");
3042:
1.266 albertel 3043: $size='['.$size;
3044: $size=~s/,$/]/;
1.344 albertel 3045: $currentstring .= '\graphicspath{{'.$path.'}}'
3046: .'\includegraphics'.$size.'{'.$file.'} ';
1.354 foxr 3047: my $closure;
3048: ($currentstring, $closure) = &align_latex_image($align,
3049: $latex_rendering,
3050: $currentstring,
3051: $width_param,
3052: $height_param);
3053: $currentstring .= $closure;
1.353 foxr 3054:
1.122 albertel 3055: } else {
1.261 foxr 3056: &Apache::lonxml::debug("$src does not exist");
1.122 albertel 3057: #original image file doesn't exist so check the alt attribute
3058: my $alt =
3059: &Apache::lonxml::get_param('alt',$parstack,$safeeval,undef,1);
3060: unless ($alt) {
3061: $alt=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
3062: }
3063:
1.256 albertel 3064: if ($alt) { $currentstring .= ' '.$alt.' '; }
1.59 sakharuk 3065: }
1.249 foxr 3066:
3067: # And here's where the semi-quote breaks down: allow the user
3068: # to edit the beast as well by rendering the problem for edit:
1.186 albertel 3069: } elsif ($target eq 'edit') {
1.368 banghart 3070: my $only = join(',',&Apache::loncommon::filecategorytypes('Pictures'));
1.186 albertel 3071: $currentstring .=&Apache::edit::tag_start($target,$token);
3072: $currentstring .=&Apache::edit::text_arg('Image Url:','src',$token,70).
1.368 banghart 3073: &Apache::edit::browse('src',undef,'alt',$only).' '.
1.186 albertel 3074: &Apache::edit::search('src',undef,'alt').'<br />';
3075: $currentstring .=&Apache::edit::text_arg('Description:','alt',$token,70).'<br />';
3076: $currentstring .=&Apache::edit::text_arg('width (pixel):','width',$token,5);
3077: $currentstring .=&Apache::edit::text_arg('height (pixel):','height',$token,5).'<br />';
3078: $currentstring .=&Apache::edit::text_arg('TeXwidth (mm):','TeXwidth',$token,5);
3079: $currentstring .=&Apache::edit::text_arg('TeXheight (mm):','TeXheight',$token,5);
1.234 albertel 3080: $currentstring .=&Apache::edit::select_arg('Alignment:','align',
3081: ['','bottom','middle','top','left','right'],$token,5);
1.249 foxr 3082: $currentstring .=&Apache::edit::select_arg('TeXwrap:', 'TeXwrap',
1.348 albertel 3083: ['', 'none','parbox', 'parpic', 'wrapfigure'], $token, 2);
1.332 www 3084: $currentstring .=&Apache::edit::select_arg('Encrypt URL:','encrypturl',
1.322 albertel 3085: ['no','yes'], $token, 2);
1.186 albertel 3086: $currentstring .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1.249 foxr 3087: my $src= &Apache::lonxml::get_param('src',$parstack,$safeeval);
3088: my $alt= &Apache::lonxml::get_param('alt',$parstack,$safeeval);
3089: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
3090: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
3091:
1.381 www 3092: if ($token->[2]{'src'}=~/\$/) {
3093: $currentstring.='Variable image source';
3094: } else {
3095: $currentstring .= '<img src="'.$src.'" alt="'.$alt.'" ';
3096: if ($width) { $currentstring.=' width="'.$width.'" '; }
3097: if ($height) { $currentstring.=' height="'.$height.'" '; }
3098: $currentstring .= ' />';
3099: }
1.186 albertel 3100: } elsif ($target eq 'modified') {
1.210 albertel 3101: my ($osrc,$owidth,$oheight)=
3102: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
3103: my $ctag=&Apache::edit::get_new_args($token,$parstack,
1.234 albertel 3104: $safeeval,'src','alt','align',
1.249 foxr 3105: 'TeXwidth','TeXheight', 'TeXwrap',
1.322 albertel 3106: 'width','height','encrypturl');
1.210 albertel 3107: my ($nsrc,$nwidth,$nheight)=
3108: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
3109: my $loc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$nsrc);
3110: &image_replication($loc);
3111: my ($iwidth,$iheight);
3112: if (-e $loc) {
3113: my $image = Image::Magick->new;
3114: $image->Read($loc);
3115: ($iwidth, $iheight) = ($image->Get('width'),
3116: $image->Get('height'));
3117: }
3118: if ($osrc ne $nsrc || (!$nwidth && !$nheight)) {
3119: # changed image or no size specified,
3120: # if they didn't explicitly change the
3121: # width or height use the ones from the image
3122: if ($iwidth && $iheight) {
3123: if ($owidth == $nwidth || (!$nwidth && !$nheight)) {
3124: $token->[2]{'width'} = $iwidth;$ctag=1;
3125: }
3126: if ($oheight == $nheight || (!$nwidth && !$nheight)) {
3127: $token->[2]{'height'}=$iheight;$ctag=1;
1.186 albertel 3128: }
3129: }
3130: }
1.210 albertel 3131: my ($cwidth,$cheight)=($token->[2]{'width'},$token->[2]{'height'});
3132: # if we don't have a width or height
3133: if ($iwidth && $cwidth && !$cheight) {
3134: $token->[2]{'height'}=int(($cwidth/$iwidth)*$iheight);$ctag=1;
3135: }
3136: if ($iheight && $cheight && !$cwidth) {
3137: $token->[2]{'width'}=int(($cheight/$iheight)*$iwidth);$ctag=1;
3138: }
3139: if ($ctag) {$currentstring=&Apache::edit::rebuild_tag($token);}
1.122 albertel 3140: }
1.261 foxr 3141:
1.122 albertel 3142: return $currentstring;
3143: }
3144:
3145: sub end_img {
3146: my ($target,$token) = @_;
3147: my $currentstring = '';
1.325 albertel 3148: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3149: $currentstring = $token->[2];
3150: } elsif ($target eq 'tex') {
3151: $currentstring = '';
3152: }
3153: return $currentstring;
3154: }
3155:
1.181 sakharuk 3156: #-- <applet> tag (end tag required)
1.122 albertel 3157: sub start_applet {
3158: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3159:
3160: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,undef,1);
1.290 albertel 3161: &Apache::lonxml::extlink($code);
1.122 albertel 3162: my $archive=&Apache::lonxml::get_param('archive',$parstack,$safeeval,
3163: undef,1);
1.290 albertel 3164: &Apache::lonxml::extlink($archive);
1.122 albertel 3165: my $currentstring = '';
1.325 albertel 3166: if ($target eq 'web' || $target eq 'webgrade') {
1.267 albertel 3167: if ($env{'browser.appletsuppress'} ne 'on') {
1.250 albertel 3168: $currentstring = &Apache::lonenc::encrypt_ref($token,
3169: {'code'=>$code,
3170: 'archive'=>$archive}
3171: );
1.122 albertel 3172: } else {
3173: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
3174: $safeeval,undef,1);
3175: unless ($alttag) {
3176: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
3177: $code);
1.44 sakharuk 3178: }
1.122 albertel 3179: $currentstring='[APPLET: '.$alttag.']';
1.1 sakharuk 3180: }
1.122 albertel 3181: } elsif ($target eq 'tex') {
1.361 foxr 3182: # Turn off some stuff we can't be inside thank you LaTeX
3183:
3184:
3185: my $restart_sub = 0;
3186: my $restart_sup = 0;
3187:
3188: # Since <sub> and <sup> are simple tags it's ok to turn off/on
3189: # using the start_ stop_ functions.. those tags only care about
3190: # $target.
3191:
3192: if (&is_inside_of($tagstack, "sub")) {
3193: $restart_sub = 1;
3194: $currentstring .= &end_sub($target, $token, $tagstack,
3195: $parstack, $parser, $safeeval);
3196: }
3197: if (&is_inside_of($tagstack, "sup")) {
3198: $restart_sup = 1;
3199: $currentstring .= &end_sup($target, $token, $tagstack,
3200: $parstack, $parser, $safeeval);
3201: }
3202:
3203: # Now process the applet; just replace it with its alt attribute.
3204:
1.177 albertel 3205: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
3206: $safeeval,undef,1);
3207: unless ($alttag) {
3208: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,
3209: undef,1);
3210: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
3211: $code);
1.175 sakharuk 3212: }
1.177 albertel 3213: $currentstring.='\begin{center} \fbox{Java Applet: '.$alttag.
3214: '.}\end{center}';
1.361 foxr 3215:
3216: # Turn stuff back on that we can't be inside of.
3217:
3218: if ($restart_sub) {
3219: $currentstring .= &start_sub($target, $token, $tagstack,
3220: $parstack, $parser, $safeeval);
3221: }
3222: if ($restart_sup) {
3223: $currentstring .= &start_sup($target, $token, $tagstack,
3224: $parstack, $parser, $safeeval);
3225: }
1.122 albertel 3226: }
3227: return $currentstring;
3228: }
3229:
3230: sub end_applet {
3231: my ($target,$token) = @_;
3232: my $currentstring = '';
1.325 albertel 3233: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3234: $currentstring = $token->[2];
3235: } elsif ($target eq 'tex') {
3236: }
3237: return $currentstring;
3238: }
3239:
1.181 sakharuk 3240: #-- <embed> tag (end tag optional/required)
1.122 albertel 3241: sub start_embed {
3242: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3243: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
1.290 albertel 3244: &Apache::lonxml::extlink($src);
1.122 albertel 3245: my $currentstring = '';
1.325 albertel 3246: if ($target eq 'web' || $target eq 'webgrade') {
1.267 albertel 3247: if ($env{'browser.embedsuppress'} ne 'on') {
1.250 albertel 3248: $currentstring=&Apache::lonenc::encrypt_ref($token,{'src'=>$src});
1.122 albertel 3249: } else {
3250: my $alttag=&Apache::lonxml::get_param
3251: ('alt',$parstack,$safeeval,undef,1);
3252: unless ($alttag) {
3253: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
1.42 albertel 3254: }
1.122 albertel 3255: $currentstring='[EMBED: '.$alttag.']';
1.10 www 3256: }
1.122 albertel 3257: } elsif ($target eq 'tex') {
3258: }
3259: return $currentstring;
3260: }
3261:
3262: sub end_embed {
3263: my ($target,$token) = @_;
3264: my $currentstring = '';
1.325 albertel 3265: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3266: $currentstring = $token->[2];
1.175 sakharuk 3267: } elsif ($target eq 'tex') {
1.122 albertel 3268: }
3269: return $currentstring;
3270: }
3271:
1.181 sakharuk 3272: #-- <param> tag (end tag forbidden)
1.122 albertel 3273: sub start_param {
3274: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.290 albertel 3275: if (&Apache::lonxml::get_param('name',$parstack,
3276: $safeeval,undef,1)=~/^cabbase$/i) {
3277: my $value=&Apache::lonxml::get_param('value',$parstack,
3278: $safeeval,undef,1);
3279: &Apache::lonxml::extlink($value);
3280: }
3281:
3282: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
3283: &Apache::lonxml::extlink($src);
1.122 albertel 3284: my $currentstring = '';
1.325 albertel 3285: if ($target eq 'web' || $target eq 'webgrade') {
1.250 albertel 3286: my %toconvert;
3287: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
3288: if ($src) { $toconvert{'src'}= $src; }
3289: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval,
3290: undef,1);
1.251 albertel 3291: if ($name=~/^cabbase$/i) {
3292: $toconvert{'value'}=&Apache::lonxml::get_param('value',$parstack,
3293: $safeeval,undef,1);
3294: }
1.250 albertel 3295: $currentstring = &Apache::lonenc::encrypt_ref($token,\%toconvert);
1.122 albertel 3296: } elsif ($target eq 'tex') {
3297: }
3298: return $currentstring;
3299: }
3300:
3301: sub end_param {
3302: my ($target,$token) = @_;
3303: my $currentstring = '';
1.325 albertel 3304: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3305: $currentstring = $token->[2];
3306: } elsif ($target eq 'tex') {
3307: }
3308: return $currentstring;
3309: }
3310:
3311: #-- <allow> tag
3312: sub start_allow {
3313: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3314: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
1.290 albertel 3315: &Apache::lonxml::extlink($src);
3316:
1.241 albertel 3317: if ($target eq 'tex') { &image_replication($src); }
1.122 albertel 3318: my $result;
3319: if ($target eq 'edit') {
3320: $result .=&Apache::edit::tag_start($target,$token);
3321: $result .=&Apache::edit::text_arg('File Spec:','src',$token,70);
3322: $result .=&Apache::edit::end_row();#.&Apache::edit::start_spanning_row();
3323: } elsif ($target eq 'modified') {
3324: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
3325: $safeeval,'src');
3326: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
3327: }
3328: return $result;
3329: }
3330:
3331: sub end_allow {
3332: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3333: if ( $target eq 'edit') { return (&Apache::edit::end_table()); }
3334: return '';
3335: }
1.119 www 3336:
1.181 sakharuk 3337: #-- Frames (end tag required)
3338: #-- <frameset>
1.122 albertel 3339: sub start_frameset {
3340: my ($target,$token) = @_;
1.277 foxr 3341: my $currentstring = ''; # Close any pending para.
1.325 albertel 3342: if ($target eq 'web' || $target eq 'webgrade') {
1.328 albertel 3343: $currentstring =
3344: &Apache::loncommon::start_page($Apache::londefdef::title,
3345: $Apache::londefdef::head,
3346: {'add_entries' => $token->[2],
3347: 'no_title' => 1,
3348: 'force_register' => 1,
3349: 'frameset' => 1,});
3350:
1.122 albertel 3351: }
3352: return $currentstring;
3353: }
3354:
3355: sub end_frameset {
3356: my ($target,$token) = @_;
3357: my $currentstring = '';
1.325 albertel 3358: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3359: $currentstring = $token->[2];
3360: }
3361: return $currentstring;
3362: }
1.162 sakharuk 3363:
1.181 sakharuk 3364: #-- <xmp> (end tag required)
1.162 sakharuk 3365: sub start_xmp {
3366: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3367: my $currentstring = '';
1.325 albertel 3368: if ($target eq 'web' || $target eq 'webgrade') {
1.162 sakharuk 3369: $currentstring .= $token->[4];
3370: } elsif ($target eq 'tex') {
3371: $currentstring .= '\begin{verbatim}';
3372: }
3373: return $currentstring;
3374: }
3375:
3376: sub end_xmp {
3377: my ($target,$token) = @_;
3378: my $currentstring = '';
1.325 albertel 3379: if ($target eq 'web' || $target eq 'webgrade') {
1.162 sakharuk 3380: $currentstring .= $token->[2];
3381: } elsif ($target eq 'tex') {
3382: $currentstring .= '\end{verbatim}';
3383: }
3384: return $currentstring;
3385: }
3386:
1.181 sakharuk 3387: #-- <pre> (end tag required)
1.122 albertel 3388: sub start_pre {
1.126 sakharuk 3389: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 3390: my $currentstring = &end_p(); # close off pending <p>
1.325 albertel 3391: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3392: $currentstring .= $token->[4];
3393: } elsif ($target eq 'tex') {
1.136 sakharuk 3394: $currentstring .= '\begin{verbatim}';
1.319 albertel 3395: &Apache::lonxml::disable_LaTeX_substitutions();
1.122 albertel 3396: }
3397: return $currentstring;
3398: }
3399:
3400: sub end_pre {
3401: my ($target,$token) = @_;
3402: my $currentstring = '';
1.325 albertel 3403: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3404: $currentstring .= $token->[2];
3405: } elsif ($target eq 'tex') {
1.136 sakharuk 3406: $currentstring .= '\end{verbatim}';
1.319 albertel 3407: &Apache::lonxml::enable_LaTeX_substitutions();
1.122 albertel 3408: }
3409: return $currentstring;
3410: }
3411:
3412: #-- <insert>
3413: sub start_insert {
3414: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3415: my $currentstring = '';
1.325 albertel 3416: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3417: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
3418: $currentstring .= '<b>'.$display.'</b>';;
3419: }
3420: return $currentstring;
3421: }
3422:
3423: sub end_insert {
3424: my ($target,$token) = @_;
3425: my $currentstring = '';
1.325 albertel 3426: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3427: $currentstring .= '';
3428: }
3429: return $currentstring;
3430: }
3431:
3432: #-- <externallink>
3433: sub start_externallink {
3434: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3435: my $currentstring = '';
1.325 albertel 3436: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3437: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
3438: $currentstring .= '<b>'.$display.'</b>';;
3439: }
3440: return $currentstring;
3441: }
3442:
3443: sub end_externallink {
3444: my ($target,$token) = @_;
3445: my $currentstring = '';
1.325 albertel 3446: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3447: $currentstring .= '';
3448: }
3449: return $currentstring;
3450: }
3451:
3452: #-- <blankspace heigth="">
3453: sub start_blankspace {
3454: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 3455: my $currentstring = &end_p(); # closes off any unclosed <p>
1.122 albertel 3456: if ($target eq 'tex') {
3457: my $howmuch = &Apache::lonxml::get_param('heigth',$parstack,$safeeval,undef,1);
3458: $currentstring .= '\vskip '.$howmuch.' ';
3459: }
3460: return $currentstring;
3461: }
3462:
3463: sub end_blankspace {
3464: my ($target,$token) = @_;
3465: my $currentstring = '';
3466: if ($target eq 'tex') {
3467: $currentstring .= '';
3468: }
3469: return $currentstring;
3470: }
3471:
1.181 sakharuk 3472: #-- <abbr> tag (end tag required)
1.122 albertel 3473: sub start_abbr {
3474: my ($target,$token) = @_;
3475: my $currentstring = '';
1.325 albertel 3476: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3477: $currentstring = $token->[4];
3478: }
3479: return $currentstring;
3480: }
3481:
3482: sub end_abbr {
3483: my ($target,$token) = @_;
3484: my $currentstring = '';
1.325 albertel 3485: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3486: $currentstring = $token->[2];
3487: }
3488: return $currentstring;
3489: }
3490:
1.181 sakharuk 3491: #-- <acronym> tag (end tag required)
1.122 albertel 3492: sub start_acronym {
3493: my ($target,$token) = @_;
3494: my $currentstring = '';
1.325 albertel 3495: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3496: $currentstring = $token->[4];
3497: }
3498: return $currentstring;
3499: }
3500:
3501: sub end_acronym {
3502: my ($target,$token) = @_;
3503: my $currentstring = '';
1.325 albertel 3504: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3505: $currentstring = $token->[2];
3506: }
3507: return $currentstring;
3508: }
3509:
1.181 sakharuk 3510: #-- <area> tag (end tag forbidden)
1.122 albertel 3511: sub start_area {
3512: my ($target,$token) = @_;
3513: my $currentstring = '';
1.325 albertel 3514: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3515: $currentstring = $token->[4];
3516: }
3517: return $currentstring;
3518: }
3519:
3520: sub end_area {
3521: my ($target,$token) = @_;
3522: my $currentstring = '';
1.325 albertel 3523: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3524: $currentstring = $token->[2];
3525: }
3526: return $currentstring;
3527: }
3528:
1.181 sakharuk 3529: #-- <base> tag (end tag forbidden)
1.122 albertel 3530: sub start_base {
3531: my ($target,$token) = @_;
3532: my $currentstring = '';
1.325 albertel 3533: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3534: $currentstring = $token->[4];
1.161 sakharuk 3535: }
1.122 albertel 3536: return $currentstring;
3537: }
3538:
3539: sub end_base {
3540: my ($target,$token) = @_;
3541: my $currentstring = '';
1.325 albertel 3542: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3543: $currentstring = $token->[2];
3544: }
3545: return $currentstring;
3546: }
3547:
1.181 sakharuk 3548: #-- <bdo> tag (end tag required)
1.122 albertel 3549: sub start_bdo {
3550: my ($target,$token) = @_;
3551: my $currentstring = '';
1.325 albertel 3552: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3553: $currentstring = $token->[4];
3554: }
3555: return $currentstring;
3556: }
3557:
3558: sub end_bdo {
3559: my ($target,$token) = @_;
3560: my $currentstring = '';
1.325 albertel 3561: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3562: $currentstring = $token->[2];
3563: }
3564: return $currentstring;
3565: }
3566:
1.181 sakharuk 3567: #-- <bgsound> tag (end tag optional)
1.122 albertel 3568: sub start_bgsound {
3569: my ($target,$token) = @_;
3570: my $currentstring = '';
1.325 albertel 3571: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3572: $currentstring = $token->[4];
3573: }
3574: return $currentstring;
3575: }
3576:
3577: sub end_bgsound {
3578: my ($target,$token) = @_;
3579: my $currentstring = '';
1.325 albertel 3580: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3581: $currentstring = $token->[2];
3582: }
3583: return $currentstring;
3584: }
3585:
1.181 sakharuk 3586: #-- <blink> tag (end tag required)
1.122 albertel 3587: sub start_blink {
3588: my ($target,$token) = @_;
3589: my $currentstring = '';
1.325 albertel 3590: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3591: $currentstring = $token->[4];
3592: }
3593: return $currentstring;
3594: }
3595:
3596: sub end_blink {
3597: my ($target,$token) = @_;
3598: my $currentstring = '';
1.325 albertel 3599: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3600: $currentstring = $token->[2];
3601: }
3602: return $currentstring;
3603: }
3604:
1.181 sakharuk 3605: #-- <blockquote> tag (end tag required)
1.122 albertel 3606: sub start_blockquote {
3607: my ($target,$token) = @_;
1.279 foxr 3608: my $currentstring = &end_p(); # Close any unclosed <p>
1.325 albertel 3609: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 3610: $currentstring .= $token->[4];
1.122 albertel 3611: }
1.339 foxr 3612: if ($target eq 'tex') {
3613: $currentstring .= '\begin{quote}';
3614: }
1.122 albertel 3615: return $currentstring;
3616: }
3617:
3618: sub end_blockquote {
3619: my ($target,$token) = @_;
3620: my $currentstring = '';
1.325 albertel 3621: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3622: $currentstring = $token->[2];
3623: }
1.339 foxr 3624: if ($target eq 'tex') {
3625: $currentstring = '\end{quote}';
3626: }
1.122 albertel 3627: return $currentstring;
3628: }
3629:
1.181 sakharuk 3630: #-- <button> tag (end tag required)
1.122 albertel 3631: sub start_button {
3632: my ($target,$token) = @_;
3633: my $currentstring = '';
1.325 albertel 3634: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3635: $currentstring = $token->[4];
3636: }
3637: return $currentstring;
3638: }
3639:
3640: sub end_button {
3641: my ($target,$token) = @_;
3642: my $currentstring = '';
1.325 albertel 3643: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3644: $currentstring = $token->[2];
3645: }
3646: return $currentstring;
3647: }
3648:
1.181 sakharuk 3649: #-- <caption> tag (end tag required)
1.122 albertel 3650: sub start_caption {
3651: my ($target,$token) = @_;
3652: my $currentstring = '';
1.325 albertel 3653: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3654: $currentstring = $token->[4];
3655: }
3656: return $currentstring;
3657: }
3658:
3659: sub end_caption {
3660: my ($target,$token) = @_;
3661: my $currentstring = '';
1.325 albertel 3662: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3663: $currentstring = $token->[2];
3664: }
3665: return $currentstring;
3666: }
3667:
1.181 sakharuk 3668: #-- <col> tag (end tag forbdden)
1.122 albertel 3669: sub start_col {
3670: my ($target,$token) = @_;
3671: my $currentstring = '';
1.325 albertel 3672: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3673: $currentstring = $token->[4];
3674: }
3675: return $currentstring;
3676: }
3677:
3678: sub end_col {
3679: my ($target,$token) = @_;
3680: my $currentstring = '';
1.325 albertel 3681: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3682: $currentstring = $token->[2];
3683: }
3684: return $currentstring;
3685: }
3686:
1.181 sakharuk 3687: #-- <colgroup> tag (end tag optional)
1.122 albertel 3688: sub start_colgroup {
3689: my ($target,$token) = @_;
3690: my $currentstring = '';
1.325 albertel 3691: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3692: $currentstring = $token->[4];
3693: }
3694: return $currentstring;
3695: }
3696:
3697: sub end_colgroup {
3698: my ($target,$token) = @_;
3699: my $currentstring = '';
1.325 albertel 3700: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3701: $currentstring = $token->[2];
3702: }
3703: return $currentstring;
3704: }
3705:
1.181 sakharuk 3706: #-- <del> tag (end tag required)
1.122 albertel 3707: sub start_del {
3708: my ($target,$token) = @_;
3709: my $currentstring = '';
1.325 albertel 3710: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3711: $currentstring = $token->[4];
3712: }
3713: return $currentstring;
3714: }
3715:
3716: sub end_del {
3717: my ($target,$token) = @_;
3718: my $currentstring = '';
1.325 albertel 3719: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3720: $currentstring = $token->[2];
3721: }
3722: return $currentstring;
3723: }
3724:
1.181 sakharuk 3725: #-- <fieldset> tag (end tag required)
1.122 albertel 3726: sub start_fieldset {
3727: my ($target,$token) = @_;
3728: my $currentstring = '';
1.325 albertel 3729: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3730: $currentstring = $token->[4];
3731: }
3732: return $currentstring;
3733: }
3734:
3735: sub end_fieldset {
3736: my ($target,$token) = @_;
3737: my $currentstring = '';
1.325 albertel 3738: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3739: $currentstring = $token->[2];
3740: }
3741: return $currentstring;
3742: }
3743:
1.181 sakharuk 3744: #-- <frame> tag (end tag forbidden)
1.122 albertel 3745: sub start_frame {
3746: my ($target,$token) = @_;
3747: my $currentstring = '';
1.325 albertel 3748: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3749: $currentstring = $token->[4];
3750: }
3751: return $currentstring;
3752: }
3753:
3754: sub end_frame {
3755: my ($target,$token) = @_;
3756: my $currentstring = '';
1.325 albertel 3757: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3758: $currentstring = $token->[2];
3759: }
3760: return $currentstring;
3761: }
3762:
1.181 sakharuk 3763: #-- <iframe> tag (end tag required)
1.122 albertel 3764: sub start_iframe {
3765: my ($target,$token) = @_;
3766: my $currentstring = '';
1.325 albertel 3767: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3768: $currentstring = $token->[4];
3769: }
3770: return $currentstring;
3771: }
3772:
3773: sub end_iframe {
3774: my ($target,$token) = @_;
3775: my $currentstring = '';
1.325 albertel 3776: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3777: $currentstring = $token->[2];
3778: }
3779: return $currentstring;
3780: }
3781:
1.181 sakharuk 3782: #-- <ins> tag (end tag required)
1.122 albertel 3783: sub start_ins {
3784: my ($target,$token) = @_;
3785: my $currentstring = '';
1.325 albertel 3786: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3787: $currentstring = $token->[4];
3788: }
3789: return $currentstring;
3790: }
3791:
3792: sub end_ins {
3793: my ($target,$token) = @_;
3794: my $currentstring = '';
1.325 albertel 3795: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3796: $currentstring = $token->[2];
3797: }
3798: return $currentstring;
3799: }
3800:
1.181 sakharuk 3801: #-- <isindex> tag (end tag forbidden)
1.122 albertel 3802: sub start_isindex {
3803: my ($target,$token) = @_;
3804: my $currentstring = '';
1.325 albertel 3805: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3806: $currentstring = $token->[4];
3807: }
3808: return $currentstring;
3809: }
3810:
3811: sub end_isindex {
3812: my ($target,$token) = @_;
3813: my $currentstring = '';
1.325 albertel 3814: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3815: $currentstring = $token->[2];
3816: }
3817: return $currentstring;
3818: }
3819:
1.181 sakharuk 3820: #-- <keygen> tag (end tag forbidden)
1.122 albertel 3821: sub start_keygen {
3822: my ($target,$token) = @_;
3823: my $currentstring = '';
1.325 albertel 3824: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3825: $currentstring = $token->[4];
3826: }
3827: return $currentstring;
3828: }
3829:
3830: sub end_keygen {
3831: my ($target,$token) = @_;
3832: my $currentstring = '';
1.325 albertel 3833: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3834: $currentstring = $token->[2];
3835: }
3836: return $currentstring;
3837: }
3838:
3839: #-- <label> tag
3840: sub start_label {
3841: my ($target,$token) = @_;
3842: my $currentstring = '';
1.325 albertel 3843: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3844: $currentstring = $token->[4];
3845: }
3846: return $currentstring;
3847: }
3848:
3849: sub end_label {
3850: my ($target,$token) = @_;
3851: my $currentstring = '';
1.325 albertel 3852: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3853: $currentstring = $token->[2];
3854: }
3855: return $currentstring;
3856: }
3857:
1.181 sakharuk 3858: #-- <layer> tag (end tag required)
1.122 albertel 3859: sub start_layer {
3860: my ($target,$token) = @_;
3861: my $currentstring = '';
1.325 albertel 3862: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3863: $currentstring = $token->[4];
3864: }
3865: return $currentstring;
3866: }
3867:
3868: sub end_layer {
3869: my ($target,$token) = @_;
3870: my $currentstring = '';
1.325 albertel 3871: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3872: $currentstring = $token->[2];
3873: }
3874: return $currentstring;
3875: }
3876:
1.181 sakharuk 3877: #-- <legend> tag (end tag required)
1.122 albertel 3878: sub start_legend {
3879: my ($target,$token) = @_;
3880: my $currentstring = '';
1.325 albertel 3881: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3882: $currentstring = $token->[4];
3883: }
3884: return $currentstring;
3885: }
3886:
3887: sub end_legend {
3888: my ($target,$token) = @_;
3889: my $currentstring = '';
1.325 albertel 3890: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3891: $currentstring = $token->[2];
3892: }
3893: return $currentstring;
3894: }
3895:
1.181 sakharuk 3896: #-- <link> tag (end tag forbidden)
1.122 albertel 3897: sub start_link {
1.292 albertel 3898: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 3899: my $currentstring = '';
1.324 albertel 3900: if ($target eq 'web' || $target eq 'webgrade') {
1.291 albertel 3901: my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
3902: undef,1);
3903: &Apache::lonxml::extlink($href);
1.122 albertel 3904: $currentstring = $token->[4];
3905: }
3906: return $currentstring;
3907: }
3908:
3909: sub end_link {
3910: my ($target,$token) = @_;
3911: my $currentstring = '';
1.325 albertel 3912: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3913: $currentstring = $token->[2];
3914: }
3915: return $currentstring;
3916: }
3917:
1.181 sakharuk 3918: #-- <marquee> tag (end tag optional)
1.122 albertel 3919: sub start_marquee {
3920: my ($target,$token) = @_;
3921: my $currentstring = '';
1.325 albertel 3922: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3923: $currentstring = $token->[4];
3924: }
3925: return $currentstring;
3926: }
3927:
3928: sub end_marquee {
3929: my ($target,$token) = @_;
3930: my $currentstring = '';
1.325 albertel 3931: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3932: $currentstring = $token->[2];
3933: }
3934: return $currentstring;
3935: }
3936:
1.179 sakharuk 3937: #-- <multicol> tag (end tag required)
3938: sub start_multicol {
1.122 albertel 3939: my ($target,$token) = @_;
1.279 foxr 3940: my $currentstring = &end_p(); # Close any pending <p>
1.325 albertel 3941: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 3942: $currentstring .= $token->[4];
1.122 albertel 3943: }
3944: return $currentstring;
3945: }
3946:
1.179 sakharuk 3947: sub end_multicol {
1.122 albertel 3948: my ($target,$token) = @_;
3949: my $currentstring = '';
1.325 albertel 3950: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3951: $currentstring = $token->[2];
3952: }
3953: return $currentstring;
3954: }
3955:
1.179 sakharuk 3956: #-- <nobr> tag (end tag required)
1.122 albertel 3957: sub start_nobr {
3958: my ($target,$token) = @_;
3959: my $currentstring = '';
1.325 albertel 3960: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3961: $currentstring = $token->[4];
1.179 sakharuk 3962: } elsif ($target eq 'tex') {
3963: $currentstring='\mbox{';
3964: }
1.122 albertel 3965: return $currentstring;
3966: }
3967:
3968: sub end_nobr {
3969: my ($target,$token) = @_;
3970: my $currentstring = '';
1.325 albertel 3971: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3972: $currentstring = $token->[2];
1.179 sakharuk 3973: } elsif ($target eq 'tex') {
3974: $currentstring='}';
3975: }
1.122 albertel 3976: return $currentstring;
3977: }
3978:
1.179 sakharuk 3979: #-- <noembed> tag (end tag required)
1.122 albertel 3980: sub start_noembed {
3981: my ($target,$token) = @_;
3982: my $currentstring = '';
1.325 albertel 3983: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3984: $currentstring = $token->[4];
3985: }
3986: return $currentstring;
3987: }
3988:
3989: sub end_noembed {
3990: my ($target,$token) = @_;
3991: my $currentstring = '';
1.325 albertel 3992: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3993: $currentstring = $token->[2];
3994: }
3995: return $currentstring;
3996: }
3997:
1.179 sakharuk 3998: #-- <noframes> tag (end tag required)
1.122 albertel 3999: sub start_noframes {
4000: my ($target,$token) = @_;
4001: my $currentstring = '';
1.325 albertel 4002: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4003: $currentstring = $token->[4];
4004: }
4005: return $currentstring;
4006: }
4007:
4008: sub end_noframes {
4009: my ($target,$token) = @_;
4010: my $currentstring = '';
1.325 albertel 4011: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4012: $currentstring = $token->[2];
4013: }
4014: return $currentstring;
4015: }
4016:
1.179 sakharuk 4017: #-- <nolayer> tag (end tag required)
1.122 albertel 4018: sub start_nolayer {
4019: my ($target,$token) = @_;
4020: my $currentstring = '';
1.325 albertel 4021: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4022: $currentstring = $token->[4];
4023: }
4024: return $currentstring;
4025: }
4026:
4027: sub end_nolayer {
4028: my ($target,$token) = @_;
4029: my $currentstring = '';
1.325 albertel 4030: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4031: $currentstring = $token->[2];
4032: }
4033: return $currentstring;
4034: }
4035:
1.179 sakharuk 4036: #-- <noscript> tag (end tag required)
1.122 albertel 4037: sub start_noscript {
4038: my ($target,$token) = @_;
4039: my $currentstring = '';
1.325 albertel 4040: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4041: $currentstring = $token->[4];
4042: }
4043: return $currentstring;
4044: }
4045:
4046: sub end_noscript {
4047: my ($target,$token) = @_;
4048: my $currentstring = '';
1.325 albertel 4049: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4050: $currentstring = $token->[2];
4051: }
4052: return $currentstring;
4053: }
4054:
1.179 sakharuk 4055: #-- <object> tag (end tag required)
1.122 albertel 4056: sub start_object {
4057: my ($target,$token) = @_;
4058: my $currentstring = '';
1.325 albertel 4059: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4060: $currentstring = $token->[4];
4061: }
4062: return $currentstring;
4063: }
4064:
4065: sub end_object {
4066: my ($target,$token) = @_;
4067: my $currentstring = '';
1.325 albertel 4068: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4069: $currentstring = $token->[2];
4070: }
4071: return $currentstring;
4072: }
4073:
1.179 sakharuk 4074: #-- <optgroup> tag (end tag required)
1.122 albertel 4075: sub start_optgroup {
4076: my ($target,$token) = @_;
4077: my $currentstring = '';
1.325 albertel 4078: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4079: $currentstring = $token->[4];
4080: }
4081: return $currentstring;
4082: }
4083:
4084: sub end_optgroup {
4085: my ($target,$token) = @_;
4086: my $currentstring = '';
1.325 albertel 4087: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4088: $currentstring = $token->[2];
4089: }
4090: return $currentstring;
4091: }
4092:
1.179 sakharuk 4093: #-- <samp> tag (end tag required)
1.122 albertel 4094: sub start_samp {
4095: my ($target,$token) = @_;
4096: my $currentstring = '';
1.325 albertel 4097: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4098: $currentstring = $token->[4];
1.179 sakharuk 4099: } elsif ($target eq 'tex') {
4100: $currentstring='\texttt{';
4101: }
1.122 albertel 4102: return $currentstring;
4103: }
4104:
4105: sub end_samp {
4106: my ($target,$token) = @_;
4107: my $currentstring = '';
1.325 albertel 4108: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4109: $currentstring = $token->[2];
1.179 sakharuk 4110: } elsif ($target eq 'tex') {
4111: $currentstring='}';
4112: }
1.122 albertel 4113: return $currentstring;
4114: }
4115:
4116: #-- <server> tag
4117: sub start_server {
4118: my ($target,$token) = @_;
4119: my $currentstring = '';
1.325 albertel 4120: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4121: $currentstring = $token->[4];
4122: }
4123: return $currentstring;
4124: }
4125:
4126: sub end_server {
4127: my ($target,$token) = @_;
4128: my $currentstring = '';
1.325 albertel 4129: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4130: $currentstring = $token->[2];
4131: }
4132: return $currentstring;
4133: }
4134:
1.179 sakharuk 4135: #-- <spacer> tag (end tag forbidden)
1.122 albertel 4136: sub start_spacer {
4137: my ($target,$token) = @_;
1.279 foxr 4138: my $currentstring = &end_p(); # Close off any open <p> tag.
1.325 albertel 4139: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 4140: $currentstring .= $token->[4];
1.122 albertel 4141: }
4142: return $currentstring;
4143: }
4144:
4145: sub end_spacer {
4146: my ($target,$token) = @_;
4147: my $currentstring = '';
1.325 albertel 4148: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4149: $currentstring = $token->[2];
4150: }
4151: return $currentstring;
4152: }
4153:
1.179 sakharuk 4154: #-- <span> tag (end tag required)
1.122 albertel 4155: sub start_span {
4156: my ($target,$token) = @_;
4157: my $currentstring = '';
1.325 albertel 4158: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4159: $currentstring = $token->[4];
4160: }
4161: return $currentstring;
4162: }
4163:
4164: sub end_span {
4165: my ($target,$token) = @_;
4166: my $currentstring = '';
1.325 albertel 4167: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4168: $currentstring = $token->[2];
4169: }
4170: return $currentstring;
4171: }
4172:
1.179 sakharuk 4173: #-- <tbody> tag (end tag optional)
1.122 albertel 4174: sub start_tbody {
4175: my ($target,$token) = @_;
4176: my $currentstring = '';
1.325 albertel 4177: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4178: $currentstring = $token->[4];
4179: }
4180: return $currentstring;
4181: }
4182:
4183: sub end_tbody {
4184: my ($target,$token) = @_;
4185: my $currentstring = '';
1.325 albertel 4186: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4187: $currentstring = $token->[2];
4188: }
4189: return $currentstring;
4190: }
4191:
1.166 sakharuk 4192: #-- <tfoot> tag (end tag optional)
1.122 albertel 4193: sub start_tfoot {
4194: my ($target,$token) = @_;
4195: my $currentstring = '';
1.325 albertel 4196: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4197: $currentstring = $token->[4];
4198: }
4199: return $currentstring;
4200: }
4201:
4202: sub end_tfoot {
4203: my ($target,$token) = @_;
4204: my $currentstring = '';
1.325 albertel 4205: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4206: $currentstring = $token->[2];
4207: }
4208: return $currentstring;
4209: }
4210:
1.166 sakharuk 4211: #-- <thead> tag (end tag optional)
1.122 albertel 4212: sub start_thead {
4213: my ($target,$token) = @_;
4214: my $currentstring = '';
1.325 albertel 4215: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4216: $currentstring = $token->[4];
4217: }
4218: return $currentstring;
4219: }
1.10 www 4220:
1.122 albertel 4221: sub end_thead {
4222: my ($target,$token) = @_;
4223: my $currentstring = '';
1.325 albertel 4224: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4225: $currentstring = $token->[2];
4226: }
4227: return $currentstring;
4228: }
1.119 www 4229:
1.122 albertel 4230: #-- <var> tag
4231: sub start_var {
1.44 sakharuk 4232: my ($target,$token) = @_;
4233: my $currentstring = '';
1.325 albertel 4234: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4235: $currentstring = $token->[4];
1.163 sakharuk 4236: } elsif ($target eq 'tex') {
4237: $currentstring = '\textit{';
4238: }
1.44 sakharuk 4239: return $currentstring;
4240: }
1.10 www 4241:
1.122 albertel 4242: sub end_var {
4243: my ($target,$token) = @_;
1.44 sakharuk 4244: my $currentstring = '';
1.325 albertel 4245: if ($target eq 'web' || $target eq 'webgrade') {
1.163 sakharuk 4246: $currentstring = $token->[2];
4247: } elsif ($target eq 'tex') {
4248: $currentstring = '}';
1.44 sakharuk 4249: }
4250: return $currentstring;
4251: }
1.119 www 4252:
1.163 sakharuk 4253: #-- <wbr> tag (end tag forbidden)
1.122 albertel 4254: sub start_wbr {
4255: my ($target,$token) = @_;
4256: my $currentstring = '';
1.325 albertel 4257: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4258: $currentstring = $token->[4];
4259: }
4260: return $currentstring;
1.98 albertel 4261: }
4262:
1.122 albertel 4263: sub end_wbr {
4264: my ($target,$token) = @_;
4265: my $currentstring = '';
1.325 albertel 4266: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4267: $currentstring = $token->[2];
4268: }
4269: return $currentstring;
1.98 albertel 4270: }
1.134 sakharuk 4271:
4272: #-- <hideweboutput> tag
4273: sub start_hideweboutput {
4274: my ($target,$token) = @_;
1.325 albertel 4275: if ($target eq 'web' || $target eq 'webgrade') {
1.134 sakharuk 4276: &Apache::lonxml::startredirection();
4277: }
4278: return '';
4279: }
4280:
4281: sub end_hideweboutput {
4282: my ($target,$token) = @_;
4283: my $currentstring = '';
1.325 albertel 4284: if ($target eq 'web' || $target eq 'webgrade') {
1.134 sakharuk 4285: $currentstring = &Apache::lonxml::endredirection();
4286: }
4287: return '';
4288: }
4289:
1.94 sakharuk 4290:
4291: sub image_replication {
4292: my $src = shift;
1.187 albertel 4293: if (not -e $src) { &Apache::lonnet::repcopy($src); }
4294: #replicates eps or ps
4295: my $epssrc = my $pssrc = $src;
4296: $epssrc =~ s/\.(gif|jpg|jpeg|png)$/.eps/i;
4297: $pssrc =~ s/\.(gif|jpg|jpeg|png)$/.ps/i;
4298: if (not -e $epssrc && not -e $pssrc) {
4299: my $result=&Apache::lonnet::repcopy($epssrc);
1.264 raeburn 4300: if ($result ne 'ok') { &Apache::lonnet::repcopy($pssrc); }
1.94 sakharuk 4301: }
4302: return '';
1.195 sakharuk 4303: }
1.275 foxr 4304: #
4305: # Get correct sizing parameter for an image given
4306: # it's initial ht. and wid. This allows sizing of
4307: # images that are generated on-the-fly (e.g. gnuplot)
4308: # as well as serving as a utility for image_size.
4309: #
4310: # Parameter:
4311: # height_param
4312: # width_param - Initial picture dimensions.
4313: # scaling - A scale factor.
4314: # parstack, - the current stack of tag attributes
4315: # from the xml parser
4316: # safeeval, - pointer to the safespace
4317: # depth, - from what level in the stack to look for attributes
4318: # (assumes -1 if unspecified)
4319: # cis - look for attrubutes case insensitively
4320: # (assumes false)
4321: #
4322: # Returns:
4323: # height, width - new dimensions.
4324: #
4325: sub resize_image {
4326: my ($height_param, $width_param, $scaling,
4327: $parstack, $safeeval, $depth, $cis) = @_;
4328:
4329: # First apply the scaling...
1.271 foxr 4330:
1.275 foxr 4331: $height_param = $height_param * $scaling;
4332: $width_param = $width_param * $scaling;
1.261 foxr 4333:
1.197 sakharuk 4334: #do we have any specified LaTeX size of the picture?
1.261 foxr 4335: my $toget='TeXwidth';
4336: if ($cis) {
4337: $toget=lc($toget);
4338: }
1.256 albertel 4339: my $TeXwidth = &Apache::lonxml::get_param($toget,$parstack,
4340: $safeeval,$depth,$cis);
4341: $toget='TeXheight'; if ($cis) { $toget=lc($toget); }
4342: my $TeXheight = &Apache::lonxml::get_param($toget,$parstack,
4343: $safeeval,$depth,$cis);
1.197 sakharuk 4344: #do we have any specified web size of the picture?
4345: my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval,
1.256 albertel 4346: $depth,1);
4347: if ($TeXwidth) {
1.252 matthew 4348: my $old_width_param=$width_param;
1.197 sakharuk 4349: if ($TeXwidth=~/(\d+)\s*\%/) {
1.267 albertel 4350: $width_param = $1*$env{'form.textwidth'}/100;
1.197 sakharuk 4351: } else {
4352: $width_param = $TeXwidth;
4353: }
1.266 albertel 4354: if ($TeXheight) {
4355: $height_param = $TeXheight;
4356: } elsif ($old_width_param) {
4357: $height_param=$TeXwidth/$old_width_param*$height_param;
4358: }
1.256 albertel 4359: } elsif ($TeXheight) {
1.248 foxr 4360: $height_param = $TeXheight;
1.266 albertel 4361: if ($height_param) {
4362: $width_param = $TeXheight/$height_param*$width_param;
4363: }
1.256 albertel 4364: } elsif ($width) {
1.252 matthew 4365: my $old_width_param=$width_param;
1.256 albertel 4366: $width_param = $width*$scaling;
1.266 albertel 4367: if ($old_width_param) {
4368: $height_param=$width_param/$old_width_param*$height_param;
4369: }
1.252 matthew 4370: }
1.267 albertel 4371: if ($width_param > $env{'form.textwidth'}) {
1.252 matthew 4372: my $old_width_param=$width_param;
1.267 albertel 4373: $width_param =0.95*$env{'form.textwidth'};
1.266 albertel 4374: if ($old_width_param) {
4375: $height_param=$width_param/$old_width_param*$height_param;
4376: }
1.197 sakharuk 4377: }
1.275 foxr 4378:
4379: return ($height_param, $width_param);
4380: }
4381:
4382: sub image_size {
4383: my ($src,$scaling,$parstack,$safeeval,$depth,$cis)=@_;
4384:
4385: #size of image from gif/jpg/jpeg/png
4386: my $ressrc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
4387: if (-e $ressrc) {
4388: $src = $ressrc;
4389: }
4390: my $image = Image::Magick->new;
4391: my $current_figure = $image->Read($src);
4392: my $width_param = $image->Get('width');
4393: my $height_param = $image->Get('height');
4394: &Apache::lonxml::debug("Image magick says: $src : Height = $height_param width = $width_param");
4395: undef($image);
4396:
4397: ($height_param, $width_param) = &resize_image($height_param, $width_param,
4398: $scaling, $parstack, $safeeval,
4399: $depth, $cis);
4400:
1.248 foxr 4401: return ($height_param, $width_param);
4402: }
4403:
4404: sub image_width {
4405: my ($height, $width) = &image_size(@_);
4406: return $width;
4407: }
4408: # Not yet 100% sure this is correct in all circumstances..
4409: # due to my uncertainty about mods to image_size.
4410: #
4411: sub image_height {
4412: my ($height, $width) = &image_size(@_);
4413: return $height;
1.197 sakharuk 4414: }
4415:
1.256 albertel 4416: sub get_eps_image {
4417: my ($src)=@_;
1.261 foxr 4418: my $orig_src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1], $src);
1.285 foxr 4419:
4420: # In order to prevent the substitution of the alt text, we need to
4421: # be sure the orig_src file is on system now so:
4422:
4423: if (! -e $orig_src) {
4424: &Apache::lonnet::repcopy($orig_src); # Failure is not completely fatal.
4425: }
1.275 foxr 4426: &Apache::lonxml::debug("get_eps_image: Original image: $orig_src");
1.390 foxr 4427: my ($spath, $sname, $sext) = &fileparse($src, qr/\.(bmp|gif|png|jpg|jpeg)/i);
4428: $src=~s/\.(bmp|gif|png|jpg|jpeg)$/\.eps/i;
1.256 albertel 4429: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.275 foxr 4430: &Apache::lonxml::debug("Filelocation gives: $src");
1.256 albertel 4431: if (! -e $src) {
1.261 foxr 4432: &Apache::lonxml::debug("$src does not exist");
1.264 raeburn 4433: if (&Apache::lonnet::repcopy($src) ne 'ok' ) {
1.261 foxr 4434: &Apache::lonxml::debug("Repcopy of $src failed (1)");
1.256 albertel 4435: #if replication failed try to find ps file
4436: $src=~s/\.eps$/\.ps/;
1.261 foxr 4437: &Apache::lonxml::debug("Now looking for $src");
1.270 foxr 4438: #if no ps file try to replicate it.
4439: my $didrepcopy = &Apache::lonnet::repcopy($src);
4440: &Apache::lonxml::debug("repcopy of $src ... $didrepcopy");
4441: if ( (not -e $src) ||
4442: ($didrepcopy ne 'ok')) {
1.261 foxr 4443: &Apache::lonxml::debug("Failed to find or replicate $src");
4444:
1.256 albertel 4445: #if replication failed try to produce eps file dynamically
4446: $src=~s/\.ps$/\.eps/;
4447: my $temp_file;
1.267 albertel 4448: open(FILE,">>/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat");
1.256 albertel 4449: my $newsrc=$orig_src;
4450: $newsrc =~ s|(.*)/res/|/home/httpd/html/res/|;
1.275 foxr 4451: &Apache::lonxml::debug("queueing $newsrc for dynamic eps production.");
1.344 albertel 4452: print FILE ("$newsrc\n");
4453: close(FILE);
1.256 albertel 4454: $src=~s|/home/httpd/html/res|/home/httpd/prtspool|;
4455: $src=~s|/home/([^/]*)/public_html/|/home/httpd/prtspool/$1/|;
1.283 albertel 4456: if ($sext ne "") { # Put the ext. back in to uniquify.
4457: $src =~ s/\.eps$/$sext.eps/;
4458: }
1.341 foxr 4459:
1.256 albertel 4460: }
1.343 foxr 4461:
1.256 albertel 4462: }
1.341 foxr 4463: } else {
4464: # If the postscript file has spaces in its name,
4465: # LaTeX will gratuitiously vomit. Therefore
4466: # queue such files for copy with " " replaced by "_".
4467: # printout.pm will know them by their .ps or .eps extensions.
4468: my $newsrc = $orig_src;
4469: $newsrc =~ s|(.*)/res/|/home/httpd/html/res/|;
4470: open(FILE,">>/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat");
1.343 foxr 4471: print FILE "$src\n";
1.341 foxr 4472: close FILE;
4473: $src=~s|/home/httpd/html/res|/home/httpd/prtspool|;
4474: $src=~s|/home/([^/]*)/public_html/|/home/httpd/prtspool/$1/|;
1.256 albertel 4475: }
4476: my ($path,$file)=($src=~m|(.*)/([^/]*)$|);
1.344 albertel 4477: $path =~ s/ /\_/g;
1.343 foxr 4478: $file =~ s/ /\_/g;
1.261 foxr 4479: &Apache::lonxml::debug("get_eps_image returning: $path / $file<BR />");
1.256 albertel 4480: return ($path.'/',$file);
4481: }
4482:
1.195 sakharuk 4483: sub eps_generation {
4484: my ($src,$file,$width_param) = @_;
1.267 albertel 4485: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat";
1.195 sakharuk 4486: my $temp_file = Apache::File->new('>>'.$filename);
4487: print $temp_file "$src\n";
4488: my $newsrc = $src;
1.390 foxr 4489: $newsrc =~ s/(\.bmp|\.gif|\.jpg|\.jpeg)$/\.eps/i;
1.345 albertel 4490: $newsrc=~s{/home/httpd/html/res}{};
4491: $newsrc=~s{/home/($LONCAPA::username_re)/public_html/}{/$1/};
4492: $newsrc=~s{/\./}{/};
4493: $newsrc=~s{/([^/]+)\.(ps|eps)}{/};
4494: if ($newsrc=~m{/home/httpd/lonUsers/}) {
4495: $newsrc=~s{/home/httpd/lonUsers}{};
4496: $newsrc=~s{/($LONCAPA::domain_re)/./././}{/$1/};
1.213 sakharuk 4497: }
1.345 albertel 4498: if ($newsrc=~m{/userfiles/}) {
1.239 sakharuk 4499: return ' \graphicspath{{'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4500: } else {
4501: return ' \graphicspath{{/home/httpd/prtspool'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4502: }
1.197 sakharuk 4503: }
4504:
4505: sub file_path {
4506: my $src=shift;
4507: my ($file,$path);
4508: if ($src =~ m!(.*)/([^/]*)$!) {
4509: $file = $2;
4510: $path = $1.'/';
4511: }
4512: return $file,$path;
1.126 sakharuk 4513: }
1.294 foxr 4514: # Converts a measurement in to mm from any of
4515: # the other valid LaTeX units of measure.
4516: # If the units of measure are missing from the
4517: # parameter, it is assumed to be in and returned
4518: # with mm units of measure
1.126 sakharuk 4519: sub recalc {
4520: my $argument = shift;
4521: if (not $argument=~/(mm|cm|in|pc|pt)/) {return $argument.' mm';}
1.132 sakharuk 4522: $argument=~/\s*(\d+\.?\d*)\s*(mm|cm|in|pc|pt)/;
1.126 sakharuk 4523: my $value=$1;
4524: my $units=$2;
4525: if ($units eq 'cm') {
4526: $value*=10;
4527: } elsif ($units eq 'in') {
4528: $value*=25.4;
4529: } elsif ($units eq 'pc') {
4530: $value*=(25.4*12/72.27);
4531: } elsif ($units eq 'pt') {
4532: $value*=(25.4/72.27);
4533: }
4534: return $value.' mm';
1.94 sakharuk 4535: }
1.184 sakharuk 4536:
4537: sub LATEX_length {
4538: my $garbage=shift;
1.206 sakharuk 4539: $garbage=~s/^\s+$//;
4540: $garbage=~s/^\s+(\S.*)/$1/;#space before
4541: $garbage=~s/(.*\S)\s+$/$1/;#space after
4542: $garbage=~s/(\s)+/$1/;#only one space
4543: $garbage=~s/(\\begin{([^\}]+)}|\\end{([^\}]+)})//g;#remove LaTeX \begin{...} and \end{...}
4544: $garbage=~s/(\$\_\{|\$\_|\$\^{|\$\^|\}\$)//g;#remove $_{,$_,$^{,$^,}$
4545: $garbage=~s/([^\\])\$/$1/g;#$
4546: $garbage=~s/(\\ensuremath\{\_\{|\\ensuremath\{\_|\\ensuremath\{\^{|\\ensuremath\{\^|\})//g;#remove \ensuremath{...}
4547: $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 4548: $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;
4549: $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;
4550: $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 4551: $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;
4552: $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;
4553: $garbage=~s/(\\hat{([^}]+)}|\\check{([^}]+)}|\\dot{([^}]+)}|\\breve{([^}]+)}|\\acute{([^}]+)}|\\ddot{([^}]+)}|\\grave{([^}]+)}|\\tilde{([^}]+)}|\\mathring{([^}]+)}|\\bar{([^}]+)}|\\vec{([^}]+)})/$1/g;
4554: #remove some other LaTeX command
4555: $garbage=~s|\\(\w+)\\|\\|g;
4556: $garbage=~s|\\(\w+)(\s*)|$2|g;
4557: $garbage=~s|\+|11|g;
1.184 sakharuk 4558: my $value=length($garbage);
4559: return $value;
4560: }
4561:
1.353 foxr 4562: # Wrap image 'stuff' inside of the LaTeX required to implement
4563: # alignment:
4564: # align_tex_image(align, latex_rendering, image)
4565: # Where:
4566: # align - The HTML alignment specification.
4567: # latex_rendering - rendering hint for latex.
4568: # image - The LaTeX needed to insert the image itsef.
4569: # width,height - dimensions of the image.
1.354 foxr 4570: # Returns:
4571: # The 1/2 wrapped image and the stuff required to close the
4572: # wrappage. This allows e.g. randomlabel to insert more stuff
4573: # into the closure.
1.353 foxr 4574: #
4575: sub align_latex_image {
4576: my ($align, $latex_rendering, $image, $width, $height) = @_;
1.354 foxr 4577: my $currentstring; # The 1/2 wrapped image.
4578: my $closure; # The closure of the wrappage.
1.379 albertel 4579:
4580: # if it's none just return it back
4581: if ($latex_rendering eq 'none') {
4582: return ($image,'');
4583: }
4584:
1.353 foxr 4585: # If there's an alignment specification we need to honor it here.
4586: # For the horizontal alignments, we will also honor the
4587: # value of the latex specfication. The default is parbox,
4588: # and that's used for illegal values too.
4589: #
4590: # Even though we set a default alignment value, the user
4591: # could have given us an illegal value. In that case we
4592: # just use the default alignment of bottom..
1.354 foxr 4593: $currentstring = "\n% figurewrapping \n";
1.353 foxr 4594: if ($align eq "top") {
1.354 foxr 4595: $currentstring .= '\raisebox{-'.$height.'mm}{'.$image;
4596: $closure = '}';
1.353 foxr 4597: } elsif (($align eq "center") || ($align eq "middle")) { # Being kind
4598: my $offset = $height/2;
1.354 foxr 4599: $currentstring .= '\raisebox{-'.$offset.'mm}{'.$image;
4600: $closure = '}';
1.353 foxr 4601: } elsif ($align eq "left") {
4602: if ($latex_rendering eq "parpic") {
1.354 foxr 4603: $currentstring .= '\parpic[l]{'.$image;
4604: $closure = '}';
1.353 foxr 4605: } elsif ($latex_rendering eq "parbox") {
1.354 foxr 4606: $currentstring .= '\begin{minipage}[l]{'.$width.'mm}'
4607: .$image;
4608: $closure = '\end{minipage}';
1.353 foxr 4609: } elsif ($latex_rendering eq "wrapfigure"
4610: || $latex_rendering ne 'none') { # wrapfig render
1.354 foxr 4611: $currentstring .=
1.353 foxr 4612: '\begin{wrapfigure}{l}{'.$width.'mm}'
1.354 foxr 4613: .'\scalebox{1.0}{'.$image;
4614: $closure = '}\end{wrapfigure}';
1.353 foxr 4615: }
4616: } elsif ($align eq "right") {
4617: if ($latex_rendering eq "parpic") {
1.354 foxr 4618: $currentstring .= '\parpic[r]{'.$image;
4619: $closure = '}';
1.353 foxr 4620: } elsif ($latex_rendering eq "parbox") {
1.354 foxr 4621: $currentstring .= '\begin{minipage}[r]{'.$width.'mm}'
4622: .$image;
4623: $closure = '\end{minipage}';
1.353 foxr 4624: } elsif ($latex_rendering eq "wrapfigure"
4625: || $latex_rendering ne 'none') { # wrapfig render
1.354 foxr 4626: $currentstring .=
1.353 foxr 4627: '\begin{wrapfigure}{r}{'.$width.'mm}'
1.354 foxr 4628: .'\scalebox{1.0}{'.$image;
4629: $closure = '}\end{wrapfigure}';
1.353 foxr 4630: }
4631: } else { # Bottom is also default.
4632: # $currentstring = '\raisebox{'.$height.'mm}{'.$image.'}';
1.354 foxr 4633: $currentstring .= "{$image";
4634: $closure = '}';
1.353 foxr 4635: }
1.354 foxr 4636: $currentstring .= "\n% end wrappage\n";
4637: $closure = "\n% Begin closure\n".$closure."\n% End closure\n";
4638: return ($currentstring, $closure);
1.353 foxr 4639: }
1.184 sakharuk 4640:
1.287 foxr 4641: # is_inside_of $tagstack $tag
4642: # This sub returns true if the current state of Xml processing
4643: # is inside of the tag.
4644: # Parameters:
4645: # tagstack - The tagstack from the parser.
4646: # tag - The tag (without the <>'s.).
4647: # Sample usage:
4648: # if (is_inside_of($tagstack "table")) {
4649: # # I'm in a table....
4650: # }
4651: sub is_inside_of {
4652: my ($tagstack, $tag) = @_;
4653: my @stack = @$tagstack;
4654: for (my $i = ($#stack - 1); $i >= 0; $i--) {
4655: if ($stack[$i] eq $tag) {
4656: return 1;
4657: }
4658: }
4659: return 0;
4660: }
1.184 sakharuk 4661:
1.94 sakharuk 4662:
1.1 sakharuk 4663: 1;
4664: __END__
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