Annotation of loncom/xml/londefdef.pm, revision 1.316
1.1 sakharuk 1: # The LearningOnline Network with CAPA
2: # Tags Default Definition Module
3: #
1.316 ! foxr 4: # $Id: londefdef.pm,v 1.315 2006/01/25 11:30:14 foxr Exp $
1.41 sakharuk 5: #
1.34 www 6: #
7: # Copyright Michigan State University Board of Trustees
8: #
9: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
10: #
11: # LON-CAPA is free software; you can redistribute it and/or modify
12: # it under the terms of the GNU General Public License as published by
13: # the Free Software Foundation; either version 2 of the License, or
14: # (at your option) any later version.
15: #
16: # LON-CAPA is distributed in the hope that it will be useful,
17: # but WITHOUT ANY WARRANTY; without even the implied warranty of
18: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19: # GNU General Public License for more details.
20: #
21: # You should have received a copy of the GNU General Public License
22: # along with LON-CAPA; if not, write to the Free Software
23: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24: #
25: # /home/httpd/html/adm/gpl.txt
26: #
27: # http://www.lon-capa.org/
1.156 sakharuk 28: ## Copyright for TtHfunc and TtMfunc by Ian Hutchinson.
1.34 www 29: # TtHfunc and TtMfunc (the "Code") may be compiled and linked into
30: # binary executable programs or libraries distributed by the
31: # Michigan State University (the "Licensee"), but any binaries so
32: # distributed are hereby licensed only for use in the context
33: # of a program or computational system for which the Licensee is the
34: # primary author or distributor, and which performs substantial
35: # additional tasks beyond the translation of (La)TeX into HTML.
36: # The C source of the Code may not be distributed by the Licensee
37: # to any other parties under any circumstances.
38: #
1.1 sakharuk 39:
1.2 albertel 40: package Apache::londefdef;
1.1 sakharuk 41:
1.267 albertel 42: use Apache::lonnet;
1.1 sakharuk 43: use strict;
1.124 sakharuk 44: use Apache::lonxml;
1.57 sakharuk 45: use Apache::File();
1.70 sakharuk 46: use Image::Magick;
1.118 www 47: use Apache::lonmenu();
48: use Apache::lonmeta();
1.187 albertel 49: use Apache::Constants qw(:common);
1.282 foxr 50: use File::Basename;
1.302 foxr 51: # use Data::Dumper;
1.160 sakharuk 52:
1.38 harris41 53: BEGIN {
1.15 sakharuk 54:
1.135 sakharuk 55: &Apache::lonxml::register('Apache::londefdef',('a','abbr','acronym','accessrule','address','allow','applet','area','b','base','basefont','bgo','bgsound','big','blink','blockquote','blankspace','body','br','button','caption','center','cite','code','col','colgroup','dd','del','dfn','dir','div','dl','dt','em','embed','externallink','fieldset','font','form','frame','frameset','h1','h2','h3','h4','h5','h6','head','hr','html','i','iframe','img','input','ins','insert','isindex','kbd','keygen','label','layer','legend','li','link','m','map','marquee','menu','meta','multicol','nobr','noembed','noframes','nolayer','noscript','object','ol','optgroup','option','output','p','param','pre','q','s','samp','select','server','small','spacer','span','strike','strong','sub','sup','table','tbody','td','textarea','tfoot','th','thead','title','tr','tt','tthoption','u','ul','var','wbr','hideweboutput'));
1.15 sakharuk 56:
1.188 albertel 57: }
58:
1.294 foxr 59: #
60: # Dumps all elements of the table structure.
61: # Need this 'cause evidently when given an array, Data::Dumper only seems
62: # to dump element 0.
63: #
1.302 foxr 64: #sub debug_dump_table {
65: # my $lastrow = $#Apache::londefdef::table;
66: # &Apache::lonnet::logthis("Dumping table: Last row index: $lastrow");
67: # my $row;
68: # for ($row =0; $row <= $lastrow; $row++ ) {
69: # my $text = Dumper($Apache::londefdef::table[$row]);
70: # &Apache::lonnet::logthis("table [ $row ]".$text);
71: # }
72: #}
1.188 albertel 73: sub initialize_londefdef {
74: $Apache::londefdef::TD_redirection=0;
75: @Apache::londefdef::table = ();
76: $Apache::londefdef::select=0;
1.243 albertel 77: undef(@Apache::londefdef::description);
78: @Apache::londefdef::DD=(0);
79: @Apache::londefdef::DT=(0);
1.244 albertel 80: @Apache::londefdef::seenDT=(0);
1.238 albertel 81: $Apache::londefdef::list_index=0;
1.3 sakharuk 82: }
1.1 sakharuk 83:
1.35 sakharuk 84: #======================= TAG SUBROUTINES =====================
1.8 sakharuk 85: #-- <output>
1.21 albertel 86: sub start_output {
1.122 albertel 87: my ($target) = @_;
88: if ($target eq 'meta') { $Apache::lonxml::metamode--; }
89: return '';
1.21 albertel 90: }
91: sub end_output {
1.122 albertel 92: my ($target) = @_;
93: if ($target eq 'meta') { $Apache::lonxml::metamode++; }
94: return '';
1.21 albertel 95: }
1.4 sakharuk 96: #-- <m> tag
1.33 albertel 97: sub start_m {
1.190 albertel 98: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 99: my $currentstring = '';
1.193 albertel 100: my $inside = &Apache::lonxml::get_all_text_unbalanced("/m",$parser);
1.191 albertel 101: if ($target eq 'web' || $target eq 'analyze') {
1.122 albertel 102: &Apache::lonxml::debug("M is starting with:$inside:");
103: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
104: if ($eval eq 'on') {
105: $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
106: #&Apache::lonxml::debug("M is evaulated to:$inside:");
107: }
1.276 albertel 108: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
109: $currentstring = &Apache::lontexconvert::converted(\$inside,$display);
1.122 albertel 110: if ($Apache::lontexconvert::errorstring) {
111: &Apache::lonxml::warning("tth error: ".
112: $Apache::lontexconvert::errorstring);
113: $Apache::lontexconvert::errorstring='';
114: }
115: #&Apache::lonxml::debug("M is ends with:$currentstring:");
1.178 albertel 116: $Apache::lonxml::post_evaluate=0;
1.122 albertel 117: } elsif ($target eq 'tex') {
1.190 albertel 118: $currentstring = $inside;
1.178 albertel 119: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
120: if ($eval eq 'on') {
121: $currentstring=&Apache::run::evaluate($currentstring,$safeeval,$$parstack[-1]);
122: }
1.122 albertel 123: if ($currentstring=~/^(\s*\\\\\s*)*$/) {$currentstring = ' \vskip 0 mm ';}
1.257 albertel 124: # detect simple math mode entry exits, and convert them
125: # to use \ensuremath
126: if ($currentstring=~/^\s*\$[^\$].*[^\$]\$\s*$/) {
1.293 albertel 127: $currentstring=~s/^(\s*)\$/$1/;
128: $currentstring=~s/\$(\s*)$/$1/;
1.257 albertel 129: $currentstring='\ensuremath{'.$currentstring.'}';
130: }
1.178 albertel 131: $Apache::lonxml::post_evaluate=0;
1.122 albertel 132: }
133: return $currentstring;
1.33 albertel 134: }
1.122 albertel 135:
1.33 albertel 136: sub end_m {
1.122 albertel 137: my ($target,$token) = @_;
138: my $currentstring = '';
1.204 albertel 139: if ($target eq 'tex') {
1.122 albertel 140: $currentstring = "";
141: }
142: return $currentstring;
1.33 albertel 143: }
1.110 albertel 144:
145: sub start_tthoption {
1.299 albertel 146: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 147: my $result;
148: if ($target eq 'web') {
1.299 albertel 149: my $inside = &Apache::lonxml::get_all_text("/tthoption",$parser,
150: $style);
1.122 albertel 151: $inside=~s/^\s*//;
1.267 albertel 152: if ($env{'browser.mathml'}) {
1.122 albertel 153: &tth::ttmoptions($inside);
154: } else {
155: &tth::tthoptions($inside);
156: }
157: }
158: return $result;
1.110 albertel 159: }
160:
161: sub end_tthoption {
1.122 albertel 162: my ($target,$token) = @_;
163: my $result;
164: return $result;
1.110 albertel 165: }
166:
1.181 sakharuk 167: #-- <html> tag (end tag optional)
1.100 albertel 168: sub start_html {
169: my ($target,$token) = @_;
170: my $currentstring = '';
1.267 albertel 171: my $options=$env{'course.'.$env{'request.course.id'}.'.tthoptions'};
1.196 albertel 172: &Apache::lontexconvert::init_tth();
1.269 albertel 173: if ($target eq 'web' || $target eq 'edit' || $target eq 'webgrade' ) {
1.242 albertel 174: $currentstring = &Apache::lonxml::xmlbegin();
1.100 albertel 175: } elsif ($target eq 'tex') {
1.307 foxr 176: $currentstring .= '\documentclass[letterpaper,twoside]{article}';
1.267 albertel 177: if (($env{'form.latex_type'}=~'batchmode') ||
178: (!$env{'request.role.adv'})) {$currentstring .='\batchmode';}
1.217 sakharuk 179: $currentstring .= '\newcommand{\keephidden}[1]{}'.
180: '\renewcommand{\deg}{$^{\circ}$}'.
1.306 foxr 181: '\usepackage{multirow}'.
1.217 sakharuk 182: '\usepackage{longtable}'.
183: '\usepackage{textcomp}'.
184: '\usepackage{makeidx}'.
185: '\usepackage[dvips]{graphicx}'.
1.286 foxr 186: '\usepackage{wrapfig}'.
1.248 foxr 187: '\usepackage{picins}'.
1.217 sakharuk 188: '\usepackage{epsfig}'.
189: '\usepackage{calc}'.
190: '\usepackage{amsmath}'.
191: '\usepackage{amssymb}'.
192: '\usepackage{amsfonts}'.
193: '\usepackage{amsthm}'.
194: '\usepackage{amscd}'.
195: '\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}}'.
196: '\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 197: }
198: return $currentstring;
199: }
1.122 albertel 200:
201: sub end_html {
1.232 sakharuk 202: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 203: my $currentstring = '';
204: if ($target eq 'web') {
1.259 albertel 205: $currentstring = '</html>';
1.122 albertel 206: }
207: return $currentstring;
208: }
209:
1.181 sakharuk 210: #-- <head> tag (end tag optional)
1.122 albertel 211: sub start_head {
212: my ($target,$token) = @_;
213: my $currentstring = '';
214: if ($target eq 'web') {
1.242 albertel 215: $currentstring = $token->[4].&Apache::lonxml::fontsettings();
1.122 albertel 216: }
217: return $currentstring;
218: }
219:
220: sub end_head {
221: my ($target,$token) = @_;
222: my $currentstring = '';
1.267 albertel 223: if ($target eq 'web' && $env{'request.state'} eq 'published') {
1.122 albertel 224: $currentstring = &Apache::lonmenu::registerurl(undef,$target).
225: $token->[2];
226: }
227: return $currentstring;
228: }
229:
1.181 sakharuk 230: #-- <map> tag (end tag required)
1.122 albertel 231: sub start_map {
232: my ($target,$token) = @_;
233: my $currentstring = '';
234: if ($target eq 'web') {
235: $currentstring = $token->[4];
236: }
237: return $currentstring;
238: }
239:
240: sub end_map {
241: my ($target,$token) = @_;
242: my $currentstring = '';
243: if ($target eq 'web') {
244: $currentstring = $token->[2];
245: }
246: return $currentstring;
247: }
248:
1.181 sakharuk 249: #-- <select> tag (end tag required)
1.122 albertel 250: sub start_select {
251: my ($target,$token) = @_;
252: my $currentstring = '';
253: if ($target eq 'web') {
254: $currentstring = $token->[4];
1.181 sakharuk 255: } elsif ($target eq 'tex') {
256: $Apache::londefdef::select=0;
257: }
1.122 albertel 258: return $currentstring;
259: }
260:
261: sub end_select {
262: my ($target,$token) = @_;
263: my $currentstring = '';
264: if ($target eq 'web') {
265: $currentstring = $token->[2];
266: }
267: return $currentstring;
268: }
269:
1.181 sakharuk 270: #-- <option> tag (end tag optional)
1.122 albertel 271: sub start_option {
1.181 sakharuk 272: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 273: my $currentstring = '';
274: if ($target eq 'web') {
275: $currentstring = $token->[4];
1.181 sakharuk 276: } elsif ($target eq 'tex') {
277: $Apache::londefdef::select++;
278: if ($Apache::londefdef::select == 1) {
279: $currentstring='\noindent\fbox{'.&Apache::lonxml::get_param('value',$parstack,$safeeval).'}\keephidden{';
280: } else {
281: $currentstring='\keephidden{';
282: }
283: }
1.122 albertel 284: return $currentstring;
285: }
286:
287: sub end_option {
288: my ($target,$token) = @_;
289: my $currentstring = '';
290: if ($target eq 'web') {
291: $currentstring = $token->[2];
1.181 sakharuk 292: } elsif ($target eq 'tex') {
293: $currentstring='}';
294: }
1.122 albertel 295: return $currentstring;
296: }
297:
1.181 sakharuk 298: #-- <input> tag (end tag forbidden)
1.122 albertel 299: sub start_input {
300: my ($target,$token) = @_;
301: my $currentstring = '';
302: if ($target eq 'web') {
303: $currentstring = $token->[4];
304: }
305: return $currentstring;
306: }
307:
308: sub end_input {
309: my ($target,$token) = @_;
310: my $currentstring = '';
311: if ($target eq 'web') {
312: $currentstring = $token->[2];
313: }
314: return $currentstring;
315: }
316:
1.181 sakharuk 317: #-- <textarea> tag (end tag required)
1.122 albertel 318: sub start_textarea {
319: my ($target,$token) = @_;
320: my $currentstring = '';
321: if ($target eq 'web') {
322: $currentstring = $token->[4];
323: }
324: return $currentstring;
325: }
326:
327: sub end_textarea {
328: my ($target,$token) = @_;
329: my $currentstring = '';
330: if ($target eq 'web') {
331: $currentstring = $token->[2];
332: }
333: return $currentstring;
334: }
335:
1.181 sakharuk 336: #-- <form> tag (end tag required)
1.122 albertel 337: sub start_form {
338: my ($target,$token) = @_;
339: my $currentstring = '';
340: if ($target eq 'web') {
341: $currentstring = $token->[4];
342: }
343: return $currentstring;
344: }
345:
346: sub end_form {
347: my ($target,$token) = @_;
348: my $currentstring = '';
349: if ($target eq 'web') {
350: $currentstring = $token->[2];
351: }
352: return $currentstring;
353: }
354:
1.181 sakharuk 355: #-- <title> tag (end tag required)
1.122 albertel 356: sub start_title {
357: my ($target,$token) = @_;
358: my $currentstring = '';
359: if ($target eq 'web') {
360: $currentstring = $token->[4];
361: } elsif ($target eq 'tex') {
1.166 sakharuk 362: $currentstring .= '\keephidden{Title of the document: '
1.122 albertel 363: }
364: if ($target eq 'meta') {
365: $currentstring='<title>';
1.185 albertel 366: &start_output($target);
1.122 albertel 367: }
368: return $currentstring;
369: }
370:
371: sub end_title {
372: my ($target,$token) = @_;
373: my $currentstring = '';
374: if ($target eq 'web') {
375: $currentstring = $token->[2];
376: } elsif ($target eq 'tex') {
377: $currentstring .= '}';
378: }
379: if ($target eq 'meta') {
1.185 albertel 380: &end_output($target);
1.122 albertel 381: $currentstring='</title>';
382: }
383: return $currentstring;
384: }
385:
1.181 sakharuk 386: #-- <meta> tag (end tag forbidden)
1.122 albertel 387: sub start_meta {
1.299 albertel 388: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 389: my $currentstring = '';
390: if ($target eq 'web') {
391: my $args='';
392: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
393: if ($args eq '') {
1.299 albertel 394: &Apache::lonxml::get_all_text("/meta",$parser,$style);
1.122 albertel 395: } else {
396: $currentstring = $token->[4];
1.1 sakharuk 397: }
1.135 sakharuk 398: } elsif ($target eq 'meta') {
1.122 albertel 399: unless (&Apache::lonxml::get_param
400: ('http-equiv',$parstack,$safeeval,undef,1)) {
401: my $name=$token->[2]->{'name'};
402: $name=~tr/A-Z/a-z/;
403: $name=~s/\s/\_/gs;
404: $name=~s/\W//gs;
405: if ($name) {
1.154 www 406: $currentstring='<'.$name;
407: my $display=&Apache::lonxml::get_param
408: ('display',$parstack,$safeeval,undef,1);
409: if ($display) {
410: $display=~s/\"/\'/g;
411: $currentstring.=' display="'.$display.'"';
412: }
413: $currentstring.='>'.
1.122 albertel 414: &Apache::lonxml::get_param
415: ('content',$parstack,$safeeval,undef,1).
1.135 sakharuk 416: '</'.$name.'>';
1.1 sakharuk 417: }
1.154 www 418: my $display=&Apache::lonxml::get_param
419: ('display',$parstack,$safeeval,undef,1);
420: if ($display) {
1.204 albertel 421: $display=&HTML::Entities::encode($display,'<>&"');
1.154 www 422: $currentstring.='<'.$name.'.display>'.$display.
423: '</'.$name.'.display>';
424: }
1.1 sakharuk 425: }
1.135 sakharuk 426: } elsif ($target eq 'tex') {
1.151 sakharuk 427: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
428: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
429: if ((not defined $content) && (not defined $name)) {
430: &Apache::lonxml::startredirection();
431: }
1.122 albertel 432: }
433: return $currentstring;
434: }
435:
436: sub end_meta {
1.165 albertel 437: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 438: my $currentstring = '';
439: if ($target eq 'web') {
440: my $args='';
441: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
442: if ($args ne '') {
1.121 www 443: $currentstring = $token->[4];
1.122 albertel 444: }
1.135 sakharuk 445: } elsif ($target eq 'tex') {
1.165 albertel 446: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
447: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
1.164 albertel 448: if ((not defined $content) && (not defined $name)) {
1.169 albertel 449: &Apache::lonxml::endredirection();
1.164 albertel 450: }
1.135 sakharuk 451: }
1.122 albertel 452: return $currentstring;
453: }
454:
1.121 www 455: # accessrule
1.122 albertel 456: sub start_accessrule {
1.299 albertel 457: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 458: my $currentstring = '';
459: my $eff=&Apache::lonxml::get_param
460: ('effect',$parstack,$safeeval,undef,1);
461: my $realm=&Apache::lonxml::get_param
462: ('realm',$parstack,$safeeval,undef,1);
1.123 www 463: my $role=&Apache::lonxml::get_param
464: ('role',$parstack,$safeeval,undef,1);
465: $realm=~s/\s+//g;
466: $realm=~s/\//\_/g;
467: $realm=~s/^\_//;
468: $realm=~s/\W/\;/g;
469: $role=~s/\s+//g;
470: $role=~s/\//\_/g;
471: $role=~s/\W/\;/g;
1.122 albertel 472: if ($target eq 'web') {
473: my $args='';
474: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
475: if ($args eq '') {
1.299 albertel 476: &Apache::lonxml::get_all_text("/accessrule",$parser,$style);
1.122 albertel 477: } else {
478: $currentstring = $token->[4];
479: }
480: }
481: if ($target eq 'meta') {
1.123 www 482: $currentstring='<rule>'.$eff.':'.$realm.':'.$role.'</rule>';
1.122 albertel 483: }
484: return $currentstring;
485: }
486:
487: sub end_accessrule {
488: my ($target,$token,$tagstack,$parstack,$parser) = @_;
489: my $currentstring = '';
490: if ($target eq 'web') {
491: my $args='';
492: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
493: if ($args ne '') {
494: $currentstring = $token->[4];
495: }
496: }
497: return $currentstring;
498: }
499:
1.181 sakharuk 500: #-- <body> tag (end tag required)
1.122 albertel 501: sub start_body {
502: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
503: my $currentstring = '';
1.244 albertel 504:
1.122 albertel 505: if ($target eq 'web') {
1.170 albertel 506: if ($Apache::lonhomework::parsing_a_problem) {
507: &Apache::lonxml::warning("<body> tag found inside of <problem> tag this can cause problems.");
508: return '';
509: }
1.180 albertel 510: if (!$Apache::lonxml::registered &&
1.267 albertel 511: $env{'request.state'} eq 'published') {
1.122 albertel 512: $currentstring.='<head>'.
513: &Apache::lonmenu::registerurl(undef,$target).'</head>';
514: }
1.155 www 515: # Accessibility
1.267 albertel 516: if ($env{'browser.imagesuppress'} eq 'on') {
1.155 www 517: delete($token->[2]->{'background'});
518: }
1.267 albertel 519: if ($env{'browser.fontenhance'} eq 'on') {
1.155 www 520: my $style='';
521: foreach my $key (keys(%{$token->[2]})) {
522: if ($key =~ /^style$/i) {
523: $style.=$token->[2]->{$key}.';';
524: delete($token->[2]->{$key});
525: }
526: }
527: $token->[2]->{'style'}=$style.'; font-size: x-large;';
528: }
1.267 albertel 529: if ($env{'browser.blackwhite'} eq 'on') {
1.155 www 530: delete($token->[2]->{'font'});
531: delete($token->[2]->{'link'});
532: delete($token->[2]->{'alink'});
533: delete($token->[2]->{'vlink'});
534: delete($token->[2]->{'bgcolor'});
535: delete($token->[2]->{'background'});
536: }
537: # Overload loads
1.122 albertel 538: my $onLoad='';
539: foreach my $key (keys(%{$token->[2]})) {
540: if ($key =~ /^onload$/i) {
541: $onLoad.=$token->[2]->{$key}.';';
542: delete($token->[2]->{$key});
1.121 www 543: }
1.122 albertel 544: }
545: $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad;
546: my $onUnload='';
547: foreach my $key (keys(%{$token->[2]})) {
548: if ($key =~ /^onunload$/i) {
549: $onUnload.=$token->[2]->{$key}.';';
550: delete($token->[2]->{$key});
1.121 www 551: }
552: }
1.122 albertel 553: $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().
554: ';'.$onUnload;
555:
1.278 www 556: $currentstring .= '<'.$token->[1];
1.122 albertel 557: foreach (keys %{$token->[2]}) {
558: $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
559: }
1.278 www 560: $currentstring.='>';
1.284 albertel 561: &Apache::lontexconvert::jsMath_reset();
562: if ($env{'environment.texengine'} eq 'jsMath') {
563: $currentstring.=&Apache::lontexconvert::jsMath_header();
564: }
1.267 albertel 565: if ($env{'request.state'} ne 'published') {
1.278 www 566: if ($env{'environment.remote'} eq 'off') {
567: $currentstring.=
568: &Apache::lonmenu::constspaceform().
569: &Apache::lonmenu::menubuttons(1,'web',1);
570: }
1.122 albertel 571: $currentstring.=(<<EDITBUTTON);
1.278 www 572: <form method="post">
573: <input type="submit" name="editmode" accesskey="e" value="Edit" />
574: </form>
1.40 albertel 575: EDITBUTTON
1.122 albertel 576: } else {
577: $currentstring.=&Apache::lonmenu::menubuttons(undef,$target,1);
1.1 sakharuk 578: }
1.201 albertel 579: $currentstring.=&Apache::lonxml::message_location();
1.122 albertel 580: } elsif ($target eq 'tex') {
581: $currentstring = '\begin{document}';
582: }
583: return $currentstring;
584: }
585:
586: sub end_body {
1.259 albertel 587: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 588: my $currentstring = &end_p(); # Close off unclosed <p>
1.122 albertel 589: if ($target eq 'web') {
1.277 foxr 590: $currentstring .= &Apache::lonxml::xmlend($target,$parser);
1.122 albertel 591: } elsif ($target eq 'tex') {
1.277 foxr 592: $currentstring .= '\strut\newline\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\newline\noindent \end{document}';
1.122 albertel 593: }
594: return $currentstring;
595: }
596:
1.309 albertel 597: # \begin{center} causes a new paragprah spacing that looks odd inside
598: # of a table cell
599: sub center_correction { return '\vspace*{-6 mm}'; }
1.181 sakharuk 600: #-- <center> tag (end tag required)
1.122 albertel 601: sub start_center {
1.309 albertel 602: my ($target,$token,$tagstack) = @_;
1.279 foxr 603: my $currentstring = &end_p(); # Close off any prior para.
1.122 albertel 604: if ($target eq 'web') {
1.277 foxr 605: $currentstring .= $token->[4];
1.122 albertel 606: } elsif ($target eq 'tex') {
1.309 albertel 607: if (&is_inside_of($tagstack, "table")) {
608: $currentstring .= ¢er_correction();
609: }
1.277 foxr 610: $currentstring .= '\begin{center}';
1.144 sakharuk 611: }
1.122 albertel 612: return $currentstring;
613: }
614:
615: sub end_center {
1.309 albertel 616: my ($target,$token,$tagstack) = @_;
1.122 albertel 617: my $currentstring = '';
618: if ($target eq 'web') {
619: $currentstring = $token->[2];
620: } elsif ($target eq 'tex') {
621: $currentstring = '\end{center}';
1.144 sakharuk 622: }
1.122 albertel 623: return $currentstring;
624: }
625:
1.181 sakharuk 626: #-- <b> tag (end tag required)
1.279 foxr 627: # NOTE: In TeX mode disables internal <p>
1.122 albertel 628: sub start_b {
629: my ($target,$token) = @_;
630: my $currentstring = '';
631: if ($target eq 'web') {
632: $currentstring = $token->[4];
633: } elsif ($target eq 'tex') {
1.279 foxr 634: &disable_para();
635: $currentstring .= '\textbf{';
1.122 albertel 636: }
637: return $currentstring;
638: }
639:
640: sub end_b {
641: my ($target,$token) = @_;
642: my $currentstring = '';
643: if ($target eq 'web') {
644: $currentstring = $token->[2];
645: } elsif ($target eq 'tex') {
1.279 foxr 646: &enable_para();
647: $currentstring = '}';
1.122 albertel 648: }
649: return $currentstring;
650: }
1.35 sakharuk 651:
1.181 sakharuk 652: #-- <strong> tag (end tag required)
1.279 foxr 653: # NOTE: in TeX mode disables internal <p>
1.122 albertel 654: sub start_strong {
655: my ($target,$token) = @_;
656: my $currentstring = '';
657: if ($target eq 'web') {
658: $currentstring = $token->[4];
659: } elsif ($target eq 'tex') {
1.279 foxr 660: &disable_para();
1.122 albertel 661: $currentstring = '\textbf{';
662: }
663: return $currentstring;
664: }
665:
666: sub end_strong {
667: my ($target,$token) = @_;
668: my $currentstring = '';
1.182 sakharuk 669: if ($target eq 'web') {
1.122 albertel 670: $currentstring = $token->[2];
671: } elsif ($target eq 'tex') {
1.279 foxr 672: &enable_para();
1.122 albertel 673: $currentstring = '}';
1.144 sakharuk 674: }
1.122 albertel 675: return $currentstring;
676: }
677:
1.181 sakharuk 678: #-- <h1> tag (end tag required)
1.122 albertel 679: sub start_h1 {
1.125 sakharuk 680: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 681: my $currentstring = &end_p(); # Close off any prior para.
1.122 albertel 682: if ($target eq 'web') {
683: $currentstring .= $token->[4];
684: } elsif ($target eq 'tex') {
1.125 sakharuk 685: my $pre;
1.199 albertel 686: my $align=lc(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1));
1.212 sakharuk 687: if ($align eq 'center') {
1.125 sakharuk 688: $pre='\begin{center}';
689: } elsif ($align eq 'left') {
690: $pre='\rlap{';
691: } elsif ($align eq 'right') {
692: $pre=' \hfill \llap{';
693: }
694: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
695: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 696: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 697: } elsif ($target eq 'meta') {
1.277 foxr 698: $currentstring.='<subject>';
1.185 albertel 699: &start_output($target);
1.122 albertel 700: }
701: return $currentstring;
702: }
703:
704: sub end_h1 {
1.125 sakharuk 705: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 706: my $currentstring = '';
707: if ($target eq 'web') {
708: $currentstring .= $token->[2];
709: } elsif ($target eq 'tex') {
1.212 sakharuk 710: my $post='\vskip 0 mm ';
1.125 sakharuk 711: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 712: if ($align eq 'center') {
1.125 sakharuk 713: $post='\end{center}';
714: } elsif ($align eq 'left') {
715: $post='} \hfill'.'\vskip 0 mm ';
716: } elsif ($align eq 'right') {
717: $post='}'.'\vskip 0 mm ';
718: }
719: $currentstring .= '}}'.$post;
1.122 albertel 720: } elsif ($target eq 'meta') {
1.185 albertel 721: &end_output($target);
1.122 albertel 722: $currentstring='</subject>';
723: }
724: return $currentstring;
725: }
726:
1.35 sakharuk 727: #-- <h2> tag
1.122 albertel 728: sub start_h2 {
1.125 sakharuk 729: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 730: my $currentstring = &end_p(); # Close off any prior para.
1.122 albertel 731: if ($target eq 'web') {
732: $currentstring .= $token->[4];
733: } elsif ($target eq 'tex') {
1.125 sakharuk 734: my $pre;
735: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 736: if ($align eq 'center') {
1.125 sakharuk 737: $pre='\begin{center}';
738: } elsif ($align eq 'left') {
739: $pre='\rlap{';
740: } elsif ($align eq 'right') {
741: $pre=' \hfill \llap{';
742: }
743: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
744: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 745: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 746: }
747: return $currentstring;
748: }
749:
750: sub end_h2 {
1.125 sakharuk 751: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 752: my $currentstring = '';
753: if ($target eq 'web') {
754: $currentstring .= $token->[2];
755: } elsif ($target eq 'tex') {
1.212 sakharuk 756: my $post='\vskip 0 mm ';
1.125 sakharuk 757: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 758: if ($align eq 'center') {
1.125 sakharuk 759: $post='\end{center}';
760: } elsif ($align eq 'left') {
761: $post='} \hfill'.'\vskip 0 mm ';
762: } elsif ($align eq 'right') {
763: $post='}'.'\vskip 0 mm ';
764: }
765: $currentstring .= '}}'.$post;
1.122 albertel 766: }
767: return $currentstring;
768: }
769:
1.35 sakharuk 770: #-- <h3> tag
1.122 albertel 771: sub start_h3 {
1.125 sakharuk 772: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 773: my $currentstring = &end_p(); # Close off any prior para.
1.122 albertel 774: if ($target eq 'web') {
775: $currentstring .= $token->[4];
776: } elsif ($target eq 'tex') {
1.125 sakharuk 777: my $pre;
778: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 779: if ($align eq 'center') {
1.125 sakharuk 780: $pre='\begin{center}';
781: } elsif ($align eq 'left') {
782: $pre='\rlap{';
783: } elsif ($align eq 'right') {
784: $pre=' \hfill \llap{';
785: }
786: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
787: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 788: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 789: }
790: return $currentstring;
791: }
792:
793: sub end_h3 {
1.125 sakharuk 794: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 795: my $currentstring = '';
796: if ($target eq 'web') {
797: $currentstring .= $token->[2];
798: } elsif ($target eq 'tex') {
1.212 sakharuk 799: my $post='\vskip 0 mm ';
1.125 sakharuk 800: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 801: if ($align eq 'center') {
1.125 sakharuk 802: $post='\end{center}';
803: } elsif ($align eq 'left') {
804: $post='} \hfill'.'\vskip 0 mm ';
805: } elsif ($align eq 'right') {
806: $post='}'.'\vskip 0 mm ';
807: }
808: $currentstring .= '}}'.$post;
1.122 albertel 809: }
810: return $currentstring;
811: }
812:
1.35 sakharuk 813: #-- <h4> tag
1.122 albertel 814: sub start_h4 {
1.125 sakharuk 815: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 816: my $currentstring = &end_p(); # Close off any prior para.
1.122 albertel 817: if ($target eq 'web') {
818: $currentstring .= $token->[4];
819: } elsif ($target eq 'tex') {
1.125 sakharuk 820: my $pre;
821: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 822: if ($align eq 'center') {
1.125 sakharuk 823: $pre='\begin{center}';
824: } elsif ($align eq 'left') {
825: $pre='\rlap{';
826: } elsif ($align eq 'right') {
827: $pre=' \hfill \llap{';
828: }
829: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
830: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 831: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 832: }
833: return $currentstring;
834: }
835:
836: sub end_h4 {
1.125 sakharuk 837: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 838: my $currentstring = '';
839: if ($target eq 'web') {
840: $currentstring .= $token->[2];
841: } elsif ($target eq 'tex') {
1.212 sakharuk 842: my $post='\vskip 0 mm ';
1.125 sakharuk 843: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 844: if ($align eq 'center') {
1.125 sakharuk 845: $post='\end{center}';
846: } elsif ($align eq 'left') {
847: $post='} \hfill'.'\vskip 0 mm ';
848: } elsif ($align eq 'right') {
849: $post='}'.'\vskip 0 mm ';
850: }
851: $currentstring .= '}}'.$post;
1.122 albertel 852: }
853: return $currentstring;
854: }
855:
1.35 sakharuk 856: #-- <h5> tag
1.122 albertel 857: sub start_h5 {
1.125 sakharuk 858: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 859: my $currentstring = &end_p(); # Close off any prior paras.
1.122 albertel 860: if ($target eq 'web') {
861: $currentstring .= $token->[4];
862: } elsif ($target eq 'tex') {
1.125 sakharuk 863: my $pre;
864: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 865: if ($align eq 'center') {
1.125 sakharuk 866: $pre='\begin{center}';
867: } elsif ($align eq 'left') {
868: $pre='\rlap{';
869: } elsif ($align eq 'right') {
870: $pre=' \hfill \llap{';
871: }
872: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
873: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 874: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 875: }
876: return $currentstring;
877: }
878:
879: sub end_h5 {
1.125 sakharuk 880: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 881: my $currentstring = '';
882: if ($target eq 'web') {
883: $currentstring .= $token->[2];
884: } elsif ($target eq 'tex') {
1.212 sakharuk 885: my $post='\vskip 0 mm ';
1.125 sakharuk 886: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 887: if ($align eq 'center') {
1.125 sakharuk 888: $post='\end{center}';
889: } elsif ($align eq 'left') {
890: $post='} \hfill'.'\vskip 0 mm ';
891: } elsif ($align eq 'right') {
892: $post='}'.'\vskip 0 mm ';
893: }
894: $currentstring .= '}}'.$post;
1.122 albertel 895: }
896: return $currentstring;
897: }
898:
1.35 sakharuk 899: #-- <h6> tag
1.122 albertel 900: sub start_h6 {
1.125 sakharuk 901: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 902: my $currentstring = &end_p(); # Close off any prior paras.
1.122 albertel 903: if ($target eq 'web') {
904: $currentstring .= $token->[4];
905: } elsif ($target eq 'tex') {
1.125 sakharuk 906: my $pre;
907: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 908: if ($align eq 'center') {
1.125 sakharuk 909: $pre='\begin{center}';
910: } elsif ($align eq 'left') {
911: $pre='\rlap{';
912: } elsif ($align eq 'right') {
913: $pre=' \hfill \llap{';
914: }
915: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
916: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 917: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 918: }
919: return $currentstring;
920: }
921:
922: sub end_h6 {
1.125 sakharuk 923: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 924: my $currentstring = '';
925: if ($target eq 'web') {
926: $currentstring .= $token->[2];
927: } elsif ($target eq 'tex') {
1.212 sakharuk 928: my $post='\vskip 0 mm ';
1.125 sakharuk 929: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 930: if ($align eq 'center') {
1.125 sakharuk 931: $post='\end{center}';
932: } elsif ($align eq 'left') {
933: $post='} \hfill'.'\vskip 0 mm ';
934: } elsif ($align eq 'right') {
935: $post='}'.'\vskip 0 mm ';
936: }
937: $currentstring .= '}}'.$post;
1.122 albertel 938: }
939: return $currentstring;
940: }
941:
1.181 sakharuk 942: #--- <cite> tag (end tag required)
1.122 albertel 943: sub start_cite {
944: my ($target,$token) = @_;
945: my $currentstring = '';
946: if ($target eq 'web') {
947: $currentstring .= $token->[4];
948: } elsif ($target eq 'tex') {
1.179 sakharuk 949: $currentstring .= '\textit{';
1.144 sakharuk 950: }
1.122 albertel 951: return $currentstring;
952: }
953:
954: sub end_cite {
955: my ($target,$token) = @_;
956: my $currentstring = '';
957: if ($target eq 'web') {
958: $currentstring .= $token->[2];
959: } elsif ($target eq 'tex') {
1.179 sakharuk 960: $currentstring .= '}';
1.144 sakharuk 961: }
1.122 albertel 962: return $currentstring;
963: }
964:
1.181 sakharuk 965: #-- <i> tag (end tag required)
1.122 albertel 966: sub start_i {
967: my ($target,$token) = @_;
968: my $currentstring = '';
969: if ($target eq 'web') {
970: $currentstring .= $token->[4];
971: } elsif ($target eq 'tex') {
972: $currentstring .= '\textit{';
1.144 sakharuk 973: }
1.122 albertel 974: return $currentstring;
975: }
976:
977: sub end_i {
978: my ($target,$token) = @_;
979: my $currentstring = '';
980: if ($target eq 'web') {
981: $currentstring .= $token->[2];
982: } elsif ($target eq 'tex') {
983: $currentstring .= '}';
984: }
985: return $currentstring;
986: }
987:
1.181 sakharuk 988: #-- <address> tag (end tag required)
1.122 albertel 989: sub start_address {
990: my ($target,$token) = @_;
991: my $currentstring = '';
992: if ($target eq 'web') {
993: $currentstring .= $token->[4];
994: } elsif ($target eq 'tex') {
1.179 sakharuk 995: $currentstring .= '\textit{';
1.144 sakharuk 996: }
1.122 albertel 997: return $currentstring;
998: }
999:
1000: sub end_address {
1001: my ($target,$token) = @_;
1002: my $currentstring = '';
1003: if ($target eq 'web') {
1004: $currentstring .= $token->[2];
1005: } elsif ($target eq 'tex') {
1.179 sakharuk 1006: $currentstring .= '}';
1.122 albertel 1007: }
1008: return $currentstring;
1009: }
1010:
1.181 sakharuk 1011: #-- <dfn> tag (end tag required)
1.122 albertel 1012: sub start_dfn {
1013: my ($target,$token) = @_;
1014: my $currentstring = '';
1015: if ($target eq 'web') {
1016: $currentstring .= $token->[4];
1017: } elsif ($target eq 'tex') {
1.179 sakharuk 1018: $currentstring .= '\textit{';
1.122 albertel 1019: }
1020: return $currentstring;
1021: }
1022:
1023: sub end_dfn {
1024: my ($target,$token) = @_;
1025: my $currentstring = '';
1026: if ($target eq 'web') {
1027: $currentstring .= $token->[2];
1028: } elsif ($target eq 'tex') {
1.179 sakharuk 1029: $currentstring .= '}';
1.144 sakharuk 1030: }
1.122 albertel 1031: return $currentstring;
1032: }
1033:
1.181 sakharuk 1034: #-- <tt> tag (end tag required)
1.122 albertel 1035: sub start_tt {
1036: my ($target,$token) = @_;
1037: my $currentstring = '';
1038: if ($target eq 'web') {
1039: $currentstring .= $token->[4];
1040: } elsif ($target eq 'tex') {
1041: $currentstring .= '\texttt{';
1.144 sakharuk 1042: }
1.122 albertel 1043: return $currentstring;
1044: }
1045:
1046: sub end_tt {
1047: my ($target,$token) = @_;
1048: my $currentstring = '';
1049: if ($target eq 'web') {
1050: $currentstring .= $token->[2];
1051: } elsif ($target eq 'tex') {
1052: $currentstring .= '}';
1053: }
1054: return $currentstring;
1055: }
1056:
1.181 sakharuk 1057: #-- <kbd> tag (end tag required)
1.122 albertel 1058: sub start_kbd {
1059: my ($target,$token) = @_;
1060: my $currentstring = '';
1061: if ($target eq 'web') {
1062: $currentstring .= $token->[4];
1063: } elsif ($target eq 'tex') {
1.179 sakharuk 1064: $currentstring .= '\texttt{';
1.144 sakharuk 1065: }
1.122 albertel 1066: return $currentstring;
1067: }
1068:
1069: sub end_kbd {
1070: my ($target,$token) = @_;
1071: my $currentstring = '';
1072: if ($target eq 'web') {
1073: $currentstring .= $token->[2];
1074: } elsif ($target eq 'tex') {
1.179 sakharuk 1075: $currentstring .= '}';
1.144 sakharuk 1076: }
1.122 albertel 1077: return $currentstring;
1078: }
1079:
1.181 sakharuk 1080: #-- <code> tag (end tag required)
1.122 albertel 1081: sub start_code {
1082: my ($target,$token) = @_;
1083: my $currentstring = '';
1084: if ($target eq 'web') {
1085: $currentstring .= $token->[4];
1086: } elsif ($target eq 'tex') {
1087: $currentstring .= '\texttt{';
1088: }
1089: return $currentstring;
1090: }
1091:
1092: sub end_code {
1093: my ($target,$token) = @_;
1094: my $currentstring = '';
1095: if ($target eq 'web') {
1096: $currentstring .= $token->[2];
1097: } elsif ($target eq 'tex') {
1098: $currentstring .= '}';
1099: }
1100: return $currentstring;
1101: }
1102:
1.181 sakharuk 1103: #-- <em> tag (end tag required)
1.122 albertel 1104: sub start_em {
1105: my ($target,$token) = @_;
1106: my $currentstring = '';
1107: if ($target eq 'web') {
1108: $currentstring .= $token->[4];
1109: } elsif ($target eq 'tex') {
1110: $currentstring .= '\emph{';
1.144 sakharuk 1111: }
1.122 albertel 1112: return $currentstring;
1113: }
1114:
1115: sub end_em {
1116: my ($target,$token) = @_;
1117: my $currentstring = '';
1118: if ($target eq 'web') {
1119: $currentstring .= $token->[2];
1120: } elsif ($target eq 'tex') {
1121: $currentstring .= '}';
1.144 sakharuk 1122: }
1.122 albertel 1123: return $currentstring;
1124: }
1125:
1.181 sakharuk 1126: #-- <q> tag (end tag required)
1.122 albertel 1127: sub start_q {
1128: my ($target,$token) = @_;
1129: my $currentstring = '';
1130: if ($target eq 'web') {
1131: $currentstring .= $token->[4];
1132: } elsif ($target eq 'tex') {
1.179 sakharuk 1133: $currentstring .= '\emph{';
1.122 albertel 1134: }
1135: return $currentstring;
1136: }
1137:
1138: sub end_q {
1139: my ($target,$token) = @_;
1140: my $currentstring = '';
1141: if ($target eq 'web') {
1142: $currentstring .= $token->[2];
1143: } elsif ($target eq 'tex') {
1.179 sakharuk 1144: $currentstring .= '}';
1.144 sakharuk 1145: }
1.122 albertel 1146: return $currentstring;
1147: }
1148:
1.277 foxr 1149: # <p> is a bit strange since it does not require a closing </p>
1150: # However in latex, we must often output closing stuff to end
1151: # environments and {}'s etc. Therefore we do all the work
1152: # of figuring out the ending strings in the start tag processing,
1153: # and provide a mechanism to output the stop text external
1154: # to tag processing.
1155: #
1156: {
1157:
1158: my $closing_string = ''; # String required to close <p>
1159:
1.279 foxr 1160: # Some tags are <p> fragile meaning that <p> inside of them
1161: # does not work within TeX mode. This is managed via the
1162: # counter below:
1163: #
1164:
1165: my $para_disabled = 0;
1166:
1167: sub disable_para {
1168: $para_disabled++;
1169: }
1170: sub enable_para {
1171: $para_disabled--;
1172: }
1173:
1174:
1.181 sakharuk 1175: #-- <p> tag (end tag optional)
1.198 sakharuk 1176: #optional attribute - align="center|left|right"
1.122 albertel 1177: sub start_p {
1.157 sakharuk 1178: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1179: my $currentstring = '';
1.122 albertel 1180: if ($target eq 'web') {
1.279 foxr 1181: $currentstring .= &end_p(); # close off prior para if in progress.
1.122 albertel 1182: $currentstring .= $token->[4];
1.279 foxr 1183: if (! ($currentstring =~ /\//)) {
1184: $closing_string = '</p>'; # Deal correctly with <p /> e.g.
1185: }
1186: } elsif ($target eq 'tex' && !$para_disabled) {
1.313 foxr 1187:
1.279 foxr 1188: $currentstring .= &end_p(); # close off prior para if in progress.
1.198 sakharuk 1189: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1190: if ($align eq 'center') {
1.277 foxr 1191: $currentstring .='\begin{center}\par';
1192: $closing_string = '\end{center}';
1.309 albertel 1193: if (&is_inside_of($tagstack, "table")) {
1194: $currentstring = ¢er_correction().$currentstring;
1195: }
1.198 sakharuk 1196: } elsif ($align eq 'right') {
1.277 foxr 1197: $currentstring.='\makebox['.$env{'form.textwidth'}.']{\hfill\llap{';
1198: $closing_string= '}}';
1.198 sakharuk 1199: } elsif ($align eq 'left') {
1.277 foxr 1200: $currentstring.='\noindent\makebox['.$env{'form.textwidth'}.']{\rlap{';
1201: $closing_string = '}\hfill}';
1.216 matthew 1202: } else {
1.277 foxr 1203: $currentstring.='\par ';
1.313 foxr 1204: if (&is_inside_of($tagstack, 'table')) {
1.315 foxr 1205: $closing_string = '\vskip 0pt'; # Seems to be consistent with <p> in tables.
1.313 foxr 1206: } else {
1207: $closing_string = '\strut\\\\\strut ';
1208: }
1.216 matthew 1209: }
1.277 foxr 1210:
1.144 sakharuk 1211: }
1.122 albertel 1212: return $currentstring;
1213: }
1.277 foxr 1214: #
1215: # End paragraph processing just requires that we output the
1216: # closing string that was saved and blank it.
1217: sub end_p {
1.279 foxr 1218: # Note only 'tex' mode uses disable_para and enable_para
1219: # so we don't need to know the target in the check below:
1220:
1221: if (!$para_disabled) {
1222: my $current_string = $closing_string;
1223: $closing_string = ''; # Not in a para anymore.
1224: return $current_string;
1225: } else {
1226: return '';
1227: }
1.122 albertel 1228:
1229: }
1.277 foxr 1230: }
1.181 sakharuk 1231: #-- <br> tag (end tag forbidden)
1.122 albertel 1232: sub start_br {
1233: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1234: my $currentstring = '';
1235: if ($target eq 'web') {
1236: $currentstring .= $token->[4];
1237: } elsif ($target eq 'tex') {
1.227 sakharuk 1238: my @tempo=@$tagstack;
1.229 sakharuk 1239: my $signal=0;
1.287 foxr 1240: # Not going to factor this to is_inside_of since that would require
1241: # multiple stack traversals.
1242: #
1.227 sakharuk 1243: for (my $i=$#tempo;$i>=0;$i--) {
1244: if (($tempo[$i] eq 'b') || ($tempo[$i] eq 'strong') ||
1.230 sakharuk 1245: ($tempo[$i] eq 'ol') || ($tempo[$i] eq 'ul') ||
1246: ($tempo[$i] eq 'td') || ($tempo[$i] eq 'th')) {
1.229 sakharuk 1247: $signal=1;
1.227 sakharuk 1248: last;
1249: }
1250: }
1.229 sakharuk 1251: if ($signal) {
1.219 sakharuk 1252: $currentstring .= ' \vskip 0 mm ';
1253: } elsif ($$tagstack[-2] ne 'sub' && $$tagstack[-2] ne 'sup') {
1254: $currentstring .= '\strut \\\\ \strut ';
1.1 sakharuk 1255: }
1.144 sakharuk 1256: }
1.122 albertel 1257: return $currentstring;
1258: }
1259:
1260: sub end_br {
1261: my ($target,$token) = @_;
1262: my $currentstring = '';
1263: if ($target eq 'web') {
1264: $currentstring .= $token->[2];
1265: }
1266: return $currentstring;
1267: }
1268:
1.181 sakharuk 1269: #-- <big> tag (end tag required)
1.122 albertel 1270: sub start_big {
1271: my ($target,$token) = @_;
1272: my $currentstring = '';
1273: if ($target eq 'web') {
1274: $currentstring .= $token->[4];
1275: } elsif ($target eq 'tex') {
1.137 sakharuk 1276: $currentstring .= '{\large ';
1.144 sakharuk 1277: }
1.122 albertel 1278: return $currentstring;
1279: }
1280:
1281: sub end_big {
1282: my ($target,$token) = @_;
1283: my $currentstring = '';
1284: if ($target eq 'web') {
1285: $currentstring .= $token->[2];
1286: } elsif ($target eq 'tex') {
1287: $currentstring .= '}';
1288: }
1289: return $currentstring;
1290: }
1291:
1.181 sakharuk 1292: #-- <small> tag (end tag required)
1.122 albertel 1293: sub start_small {
1294: my ($target,$token) = @_;
1295: my $currentstring = '';
1296: if ($target eq 'web') {
1297: $currentstring .= $token->[4];
1298: } elsif ($target eq 'tex') {
1299: $currentstring .= '{\footnotesize ';
1.144 sakharuk 1300: }
1.122 albertel 1301: return $currentstring;
1302: }
1303:
1304: sub end_small {
1305: my ($target,$token) = @_;
1306: my $currentstring = '';
1307: if ($target eq 'web') {
1308: $currentstring .= $token->[2];
1309: } elsif ($target eq 'tex') {
1310: $currentstring .= '}';
1311: }
1312: return $currentstring;
1313: }
1314:
1.181 sakharuk 1315: #-- <basefont> tag (end tag forbidden)
1.122 albertel 1316: sub start_basefont {
1.126 sakharuk 1317: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.122 albertel 1318: my $currentstring = '';
1319: if ($target eq 'web') {
1320: $currentstring = $token->[4];
1.126 sakharuk 1321: } elsif ($target eq 'tex') {
1322: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1323: if (defined $basesize) {
1324: $currentstring = '{\\'.$basesize.' ';
1325: }
1326: }
1.122 albertel 1327: return $currentstring;
1328: }
1329:
1330: sub end_basefont {
1.126 sakharuk 1331: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1332: my $currentstring = '';
1333: if ($target eq 'web') {
1334: $currentstring = $token->[4];
1.126 sakharuk 1335: } elsif ($target eq 'tex') {
1336: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1337: if (defined $basesize) {
1338: $currentstring = '}';
1339: }
1340: }
1.122 albertel 1341: return $currentstring;
1342: }
1343:
1.181 sakharuk 1344: #-- <font> tag (end tag required)
1.122 albertel 1345: sub start_font {
1346: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1347: my $currentstring = '';
1348: if ($target eq 'web') {
1349: my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
1.204 albertel 1350: if ($face!~/symbol/i) {
1.267 albertel 1351: if (($env{'browser.fontenhance'} eq 'on') ||
1352: ($env{'browser.blackwhite'} eq 'on')) { return ''; }
1.155 www 1353: }
1.122 albertel 1354: $currentstring = $token->[4];
1.126 sakharuk 1355: } elsif ($target eq 'tex') {
1356: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1357: if (defined $fontsize) {
1358: $currentstring = '{\\'.$fontsize.' ';
1359: }
1360: }
1.122 albertel 1361: return $currentstring;
1362: }
1363:
1364: sub end_font {
1365: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1366: my $currentstring = '';
1367: if ($target eq 'web') {
1368: $currentstring = $token->[2];
1.126 sakharuk 1369: } elsif ($target eq 'tex') {
1370: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1371: if (defined $fontsize) {
1372: $currentstring = '}';
1373: }
1374: }
1.122 albertel 1375: return $currentstring;
1376: }
1377:
1.181 sakharuk 1378: #-- <strike> tag (end tag required)
1.122 albertel 1379: sub start_strike {
1380: my ($target,$token) = @_;
1381: my $currentstring = '';
1382: if ($target eq 'web') {
1383: $currentstring .= $token->[4];
1384: } elsif ($target eq 'tex') {
1385: &Apache::lonxml::startredirection();
1386: }
1387: return $currentstring;
1388: }
1389:
1390: sub end_strike {
1391: my ($target,$token) = @_;
1392: my $currentstring = '';
1393: if ($target eq 'web') {
1394: $currentstring .= $token->[2];
1395: } elsif ($target eq 'tex') {
1396: $currentstring=&Apache::lonxml::endredirection();
1397: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1398: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1399: $currentstring=~s/(\S)\s*$/$1\}/;
1400: }
1401: return $currentstring;
1402: }
1403:
1.181 sakharuk 1404: #-- <s> tag (end tag required)
1.122 albertel 1405: sub start_s {
1406: my ($target,$token) = @_;
1407: my $currentstring = '';
1408: if ($target eq 'web') {
1409: $currentstring .= $token->[4];
1410: } elsif ($target eq 'tex') {
1411: &Apache::lonxml::startredirection();
1412: }
1413: return $currentstring;
1414: }
1415:
1416: sub end_s {
1417: my ($target,$token) = @_;
1418: my $currentstring = '';
1419: if ($target eq 'web') {
1420: $currentstring .= $token->[2];
1421: } elsif ($target eq 'tex') {
1422: $currentstring=&Apache::lonxml::endredirection();
1423: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1424: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1425: $currentstring=~s/(\S)\s*$/$1\}/;
1426: }
1427: return $currentstring;
1428: }
1429:
1.181 sakharuk 1430: #-- <sub> tag (end tag required)
1.122 albertel 1431: sub start_sub {
1432: my ($target,$token) = @_;
1433: my $currentstring = '';
1434: if ($target eq 'web') {
1435: $currentstring .= $token->[4];
1436: } elsif ($target eq 'tex') {
1.202 sakharuk 1437: $currentstring .= '\ensuremath{_{';
1.122 albertel 1438: }
1439: return $currentstring;
1440: }
1441:
1442: sub end_sub {
1443: my ($target,$token) = @_;
1444: my $currentstring = '';
1445: if ($target eq 'web') {
1446: $currentstring .= $token->[2];
1447: } elsif ($target eq 'tex') {
1.202 sakharuk 1448: $currentstring .= '}}';
1.122 albertel 1449: }
1450: return $currentstring;
1451: }
1452:
1.181 sakharuk 1453: #-- <sup> tag (end tag required)
1.122 albertel 1454: sub start_sup {
1455: my ($target,$token) = @_;
1456: my $currentstring = '';
1457: if ($target eq 'web') {
1458: $currentstring .= $token->[4];
1459: } elsif ($target eq 'tex') {
1.202 sakharuk 1460: $currentstring .= '\ensuremath{^{';
1.122 albertel 1461: }
1462: return $currentstring;
1463: }
1464:
1465: sub end_sup {
1466: my ($target,$token) = @_;
1467: my $currentstring = '';
1468: if ($target eq 'web') {
1469: $currentstring .= $token->[2];
1470: } elsif ($target eq 'tex') {
1.202 sakharuk 1471: $currentstring .= '}}';
1.122 albertel 1472: }
1473: return $currentstring;
1474: }
1475:
1.181 sakharuk 1476: #-- <hr> tag (end tag forbidden)
1.122 albertel 1477: sub start_hr {
1.124 sakharuk 1478: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1479: my $currentstring = &end_p(); # End enclosing para.
1.122 albertel 1480: if ($target eq 'web') {
1481: $currentstring .= $token->[4];
1482: } elsif ($target eq 'tex') {
1.149 sakharuk 1483: my $LaTeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1.124 sakharuk 1484: if (defined $LaTeXwidth) {
1485: if ($LaTeXwidth=~/^%/) {
1486: substr($LaTeXwidth,0,1)='';
1487: $LaTeXwidth=($LaTeXwidth/100).'\textwidth';
1488: }
1489: } else {
1.148 sakharuk 1490: $LaTeXwidth ='0.9\textwidth';
1.124 sakharuk 1491: }
1492: my ($pre,$post);
1493: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1494: if (($align eq 'center') || (not defined $align)) {
1495: $pre=''; $post='';
1496: } elsif ($align eq 'left') {
1497: $pre='\rlap{'; $post='} \hfill';
1498: } elsif ($align eq 'right') {
1499: $pre=' \hfill \llap{'; $post='}';
1500: }
1.148 sakharuk 1501: $currentstring .= ' \vskip 0 mm \noindent\makebox['.$LaTeXwidth.']{'.$pre.'\makebox['.
1.124 sakharuk 1502: $LaTeXwidth.'][b]{\hrulefill}'.$post.'}\vskip 0 mm ';
1.122 albertel 1503: }
1504: return $currentstring;
1505: }
1506:
1507: sub end_hr {
1508: my ($target,$token) = @_;
1509: my $currentstring = '';
1510: if ($target eq 'web') {
1511: $currentstring .= $token->[2];
1.148 sakharuk 1512: }
1.122 albertel 1513: return $currentstring;
1514: }
1515:
1.181 sakharuk 1516: #-- <div> tag (end tag required)
1.280 foxr 1517: {
1518:
1519: # Since div can be nested, the stack below is used
1520: # in 'tex' mode to store the ending strings
1521: # for the div stack.
1522:
1523: my @div_end_stack;
1524:
1.122 albertel 1525: sub start_div {
1.280 foxr 1526: my ($target,$token, $tagstack, $parstack, $parser, $safeeval) = @_;
1.279 foxr 1527: my $currentstring = &end_p(); # Close enclosing para.
1.122 albertel 1528: if ($target eq 'web') {
1529: $currentstring .= $token->[4];
1530: }
1.280 foxr 1531: if ($target eq 'tex') {
1532: # 4 possible alignments: left, right, center, and -missing-.
1533:
1534: my $endstring = '';
1535:
1536: my $align = lc(&Apache::lonxml::get_param('align', $parstack,
1537: $safeeval, undef, 1));
1538: if ($align eq 'center') {
1539: $currentstring .= '\begin{center}';
1540: $endstring = '\end{center}';
1.309 albertel 1541: if (&is_inside_of($tagstack, "table")) {
1542: $currentstring = ¢er_correction().$currentstring;
1543: }
1.280 foxr 1544: }
1545: elsif ($align eq 'right') {
1546: $currentstring .= '\begin{flushright}';
1547: $endstring .= '\end{flushright}';
1548: } elsif ($align eq 'left') {
1549: $currentstring .= '\begin{flushleft}';
1550: $endstring = '\end{flushleft}';
1551: } else {
1552:
1553: }
1554: $currentstring .= "\n"; # For human readability.
1555: $endstring = "\n$endstring\n"; # For human readability
1556: push(@div_end_stack, $endstring);
1557: }
1.122 albertel 1558: return $currentstring;
1559: }
1560:
1561: sub end_div {
1562: my ($target,$token) = @_;
1563: my $currentstring = '';
1564: if ($target eq 'web') {
1565: $currentstring .= $token->[2];
1.280 foxr 1566: }
1567: if ($target eq 'tex') {
1568: my $endstring = pop @div_end_stack;
1569: $currentstring .= $endstring;
1570: }
1.122 albertel 1571: return $currentstring;
1572: }
1.280 foxr 1573: }
1.122 albertel 1574:
1.181 sakharuk 1575: #-- <a> tag (end tag required)
1.122 albertel 1576: sub start_a {
1.149 sakharuk 1577: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1578: my $currentstring = '';
1579: if ($target eq 'web') {
1.250 albertel 1580: my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
1581: undef,1);
1582: $currentstring=&Apache::lonenc::encrypt_ref($token,{'href'=>$href});
1.122 albertel 1583: } elsif ($target eq 'tex') {
1.149 sakharuk 1584: my $a=&Apache::lonxml::get_param('href',$parstack,$safeeval,undef,1);
1.161 sakharuk 1585: my $b=&Apache::lonxml::get_param('name',$parstack,$safeeval,undef,1);
1586: if ($a=~/\S/) {
1587: $a=~s/([^\\])%/$1\\\%/g;
1588: $currentstring .= '\ref{URI: '.$a.'}';
1589: } elsif ($b=~/\S/) {
1590: $currentstring .= '\ref{Anchor: '.$b.'}';
1591: } else {
1592: $currentstring.='';
1593: }
1.122 albertel 1594: }
1595: return $currentstring;
1596: }
1597:
1598: sub end_a {
1.168 albertel 1599: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1600: my $currentstring = '';
1601: if ($target eq 'web') {
1602: $currentstring .= $token->[2];
1603: }
1604: return $currentstring;
1605: }
1606:
1.181 sakharuk 1607: #-- <li> tag (end tag optional)
1.122 albertel 1608: sub start_li {
1.168 albertel 1609: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1610: my $currentstring = '';
1611: if ($target eq 'web') {
1612: $currentstring = $token->[4];
1613: } elsif ($target eq 'tex') {
1.237 sakharuk 1614: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1615: my $value=&Apache::lonxml::get_param('value',$parstack,$safeeval,undef,0);
1.238 albertel 1616: #FIXME need to support types i and I
1617: if ($type=~/disc/) {
1618: $currentstring .= ' \item[$\bullet$] ';
1619: } elsif ($type=~/circle/) {
1620: $currentstring .= ' \item[$\circ$] ';
1.146 sakharuk 1621: } elsif ($type=~/square/) {
1.238 albertel 1622: $currentstring .= ' \item[$\diamond$] ';
1623: } elsif ($type eq '1') {
1624: $currentstring .= ' \item['.($Apache::londefdef::list_index+1).'.]';
1.237 sakharuk 1625: } elsif ($type eq 'A') {
1.238 albertel 1626: $currentstring .= ' \item['.('A'..'Z')[$Apache::londefdef::list_index].'.]';
1.237 sakharuk 1627: } elsif ($type eq 'a') {
1.238 albertel 1628: $currentstring .= ' \item['.('a'..'z')[$Apache::londefdef::list_index].'.]';
1.237 sakharuk 1629: } elsif ($value ne '') {
1630: $currentstring .= ' \item['.$value.'] ';
1.122 albertel 1631: } else {
1.146 sakharuk 1632: $currentstring .= ' \item ';
1.122 albertel 1633: }
1.238 albertel 1634: $Apache::londefdef::list_index++;
1635: }
1.122 albertel 1636: return $currentstring;
1637: }
1638:
1639: sub end_li {
1640: my ($target,$token) = @_;
1.279 foxr 1641: my $currentstring = &end_p(); # In case there's a <p> in the <li>
1.122 albertel 1642: if ($target eq 'web') {
1.277 foxr 1643: $currentstring .= $token->[2];
1.122 albertel 1644: }
1645: return $currentstring;
1646: }
1647:
1.181 sakharuk 1648: #-- <u> tag (end tag required)
1.122 albertel 1649: sub start_u {
1650: my ($target,$token) = @_;
1651: my $currentstring = '';
1652: if ($target eq 'web') {
1653: $currentstring .= $token->[4];
1654: } elsif ($target eq 'tex') {
1655: &Apache::lonxml::startredirection();
1656: }
1657: return $currentstring;
1658: }
1659:
1660: sub end_u {
1661: my ($target,$token) = @_;
1662: my $currentstring = '';
1663: if ($target eq 'web') {
1664: $currentstring .= $token->[2];
1665: } elsif ($target eq 'tex') {
1666: $currentstring=&Apache::lonxml::endredirection();
1667: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1668: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1669: $currentstring=~s/(\S)\s*$/$1\}/;
1670: }
1671: return $currentstring;
1672: }
1673:
1.181 sakharuk 1674: #-- <ul> tag (end tag required)
1.122 albertel 1675: sub start_ul {
1.125 sakharuk 1676: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1677: my $currentstring = &end_p(); # Close off enclosing list.
1.122 albertel 1678: if ($target eq 'web') {
1.277 foxr 1679: $currentstring .= $token->[4];
1.122 albertel 1680: } elsif ($target eq 'tex') {
1.125 sakharuk 1681: my $TeXtype=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1.238 albertel 1682: $Apache::londefdef::list_index=0;
1.125 sakharuk 1683: if ($TeXtype eq 'disc') {
1.222 sakharuk 1684: $currentstring .= '\renewcommand{\labelitemi}{$\bullet$}'.
1685: '\renewcommand{\labelitemii}{$\bullet$}'.
1686: '\renewcommand{\labelitemiii}{$\bullet$}'.
1687: '\renewcommand{\labelitemiv}{$\bullet$}';
1.125 sakharuk 1688: } elsif ($TeXtype eq 'circle') {
1.222 sakharuk 1689: $currentstring .= '\renewcommand{\labelitemi}{$\circ$}'.
1690: '\renewcommand{\labelitemii}{$\circ$}'.
1691: '\renewcommand{\labelitemiii}{$\circ$}'.
1692: '\renewcommand{\labelitemiv}{$\circ$}';
1.125 sakharuk 1693: } elsif ($TeXtype eq 'square') {
1.222 sakharuk 1694: $currentstring .= '\renewcommand{\labelitemi}{$\diamond$}'.
1695: '\renewcommand{\labelitemii}{$\diamond$}'.
1696: '\renewcommand{\labelitemiii}{$\diamond$}'.
1697: '\renewcommand{\labelitemiv}{$\diamond$}';
1.125 sakharuk 1698: }
1.222 sakharuk 1699: $currentstring .= '\strut \begin{itemize}';
1.122 albertel 1700: }
1701: return $currentstring;
1702: }
1703:
1704: sub end_ul {
1705: my ($target,$token) = @_;
1706: my $currentstring = '';
1707: if ($target eq 'web') {
1708: $currentstring = $token->[2];
1709: } elsif ($target eq 'tex') {
1.222 sakharuk 1710: $currentstring = '\end{itemize} \renewcommand{\labelitemi}{$\bullet$}'.
1711: '\renewcommand{\labelitemii}{$\bullet$}'.
1712: '\renewcommand{\labelitemiii}{$\bullet$}'.
1713: '\renewcommand{\labelitemiv}{$\bullet$}\strut ';
1.122 albertel 1714: }
1715: return $currentstring;
1716: }
1717:
1.181 sakharuk 1718: #-- <menu> tag (end tag required)
1.122 albertel 1719: sub start_menu {
1720: my ($target,$token) = @_;
1721: my $currentstring = '';
1722: if ($target eq 'web') {
1723: $currentstring = $token->[4];
1724: } elsif ($target eq 'tex') {
1725: $currentstring = " \\begin{itemize} ";
1726: }
1727: return $currentstring;
1728: }
1729:
1730: sub end_menu {
1731: my ($target,$token) = @_;
1732: my $currentstring = '';
1733: if ($target eq 'web') {
1734: $currentstring = $token->[2];
1735: } elsif ($target eq 'tex') {
1736: $currentstring = " \\end{itemize}";
1737: }
1738: return $currentstring;
1739: }
1740:
1.181 sakharuk 1741: #-- <dir> tag (end tag required)
1.122 albertel 1742: sub start_dir {
1743: my ($target,$token) = @_;
1.279 foxr 1744: my $currentstring = &end_p(); # In case there's a <p> prior to the list.
1.122 albertel 1745: if ($target eq 'web') {
1.277 foxr 1746: $currentstring .= $token->[4];
1.122 albertel 1747: } elsif ($target eq 'tex') {
1.277 foxr 1748: $currentstring .= " \\begin{itemize} ";
1.122 albertel 1749: }
1750: return $currentstring;
1751: }
1752:
1753: sub end_dir {
1754: my ($target,$token) = @_;
1755: my $currentstring = '';
1756: if ($target eq 'web') {
1757: $currentstring = $token->[2];
1758: } elsif ($target eq 'tex') {
1759: $currentstring = " \\end{itemize}";
1760: }
1761: return $currentstring;
1762: }
1763:
1.181 sakharuk 1764: #-- <ol> tag (end tag required)
1.122 albertel 1765: sub start_ol {
1.125 sakharuk 1766: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1767: my $currentstring = &end_p(); # In case there's a <p> prior to the list.
1.122 albertel 1768: if ($target eq 'web') {
1.277 foxr 1769: $currentstring .= $token->[4];
1.122 albertel 1770: } elsif ($target eq 'tex') {
1.238 albertel 1771: $Apache::londefdef::list_index=0;
1.125 sakharuk 1772: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1773: if ($type eq '1') {
1.222 sakharuk 1774: $currentstring .= '\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1775: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1776: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1777: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}';
1.125 sakharuk 1778: } elsif ($type eq 'A') {
1.222 sakharuk 1779: $currentstring .= '\renewcommand{\labelenumi}{\Alph{enumi}.}'.
1780: '\renewcommand{\labelenumii}{\Alph{enumii}.}'.
1781: '\renewcommand{\labelenumiii}{\Alph{enumiii}.}'.
1782: '\renewcommand{\labelenumiv}{\Alph{enumiv}.}';
1.125 sakharuk 1783: } elsif ($type eq 'a') {
1.222 sakharuk 1784: $currentstring .= '\renewcommand{\labelenumi}{\alph{enumi}.}'.
1785: '\renewcommand{\labelenumii}{\alph{enumii}.}'.
1786: '\renewcommand{\labelenumiii}{\alph{enumiii}.}'.
1787: '\renewcommand{\labelenumiv}{\alph{enumiv}.}';
1.125 sakharuk 1788: } elsif ($type eq 'i') {
1.222 sakharuk 1789: $currentstring .= '\renewcommand{\labelenumi}{\roman{enumi}.}'.
1790: '\renewcommand{\labelenumii}{\roman{enumii}.}'.
1791: '\renewcommand{\labelenumiii}{\roman{enumiii}.}'.
1792: '\renewcommand{\labelenumiv}{\roman{enumiv}.}';
1.125 sakharuk 1793: } elsif ($type eq 'I') {
1.222 sakharuk 1794: $currentstring .= '\renewcommand{\labelenumi}{\Roman{enumi}.}'.
1795: '\renewcommand{\labelenumii}{\Roman{enumii}.}'.
1796: '\renewcommand{\labelenumiii}{\Roman{enumiii}.}'.
1797: '\renewcommand{\labelenumiv}{\Roman{enumiv}.}';
1.125 sakharuk 1798: }
1.222 sakharuk 1799: $currentstring .= '\strut \begin{enumerate}';
1.122 albertel 1800: }
1801: return $currentstring;
1802: }
1803:
1804: sub end_ol {
1805: my ($target,$token) = @_;
1806: my $currentstring = '';
1807: if ($target eq 'web') {
1808: $currentstring = $token->[2];
1809: } elsif ($target eq 'tex') {
1.222 sakharuk 1810: $currentstring = '\end{enumerate}\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1811: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1812: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1813: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}\strut ';
1.122 albertel 1814: }
1815: return $currentstring;
1816: }
1817:
1.181 sakharuk 1818: #-- <dl> tag (end tag required)
1.122 albertel 1819: sub start_dl {
1820: my ($target,$token) = @_;
1.279 foxr 1821: my $currentstring = &end_p(); # In case there's a <p> unclosed prior to the list.
1.122 albertel 1822: if ($target eq 'web') {
1.277 foxr 1823: $currentstring .= $token->[4];
1.122 albertel 1824: } elsif ($target eq 'tex') {
1.277 foxr 1825: $currentstring .= '\begin{description}';
1.243 albertel 1826: $Apache::londefdef::DL++;
1827: push(@Apache::londefdef::description,[]);
1828: $Apache::londefdef::DD[$Apache::londefdef::DL]=0;
1829: $Apache::londefdef::DT[$Apache::londefdef::DL]=0;
1.244 albertel 1830: $Apache::londefdef::seenDT[$Apache::londefdef::DL]=0;
1.122 albertel 1831: }
1832: return $currentstring;
1833: }
1834:
1835: sub end_dl {
1.174 sakharuk 1836: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1837: my $currentstring = '';
1838: if ($target eq 'web') {
1839: $currentstring = $token->[2];
1840: } elsif ($target eq 'tex') {
1.243 albertel 1841: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1842: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
1843: foreach my $element (@{$Apache::londefdef::description[-1]}) {
1.174 sakharuk 1844: $currentstring.=' '.$element.' ';
1845: }
1.243 albertel 1846: pop(@Apache::londefdef::description);
1.174 sakharuk 1847: $currentstring.='\end{description}';
1.243 albertel 1848: delete($Apache::londefdef::DD[$Apache::londefdef::DL]);
1849: delete($Apache::londefdef::DT[$Apache::londefdef::DL]);
1.244 albertel 1850: delete($Apache::londefdef::seenDT[$Apache::londefdef::DL]);
1.243 albertel 1851: $Apache::londefdef::DL--;
1.122 albertel 1852: }
1853: return $currentstring;
1854: }
1855:
1.172 sakharuk 1856: #-- <dt> tag (end tag optional)
1.122 albertel 1857: sub start_dt {
1.172 sakharuk 1858: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1859: my $currentstring='';
1.122 albertel 1860: if ($target eq 'web') {
1861: $currentstring = $token->[4];
1862: } elsif ($target eq 'tex') {
1.243 albertel 1863: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1864: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
1.174 sakharuk 1865: &Apache::lonxml::startredirection();
1.243 albertel 1866: $Apache::londefdef::DT[-1]++;
1.244 albertel 1867: $Apache::londefdef::seenDT[-1]=1;
1.122 albertel 1868: }
1869: return $currentstring;
1870: }
1871:
1872: sub end_dt {
1.172 sakharuk 1873: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1874: my $currentstring = '';
1875: if ($target eq 'web') {
1876: $currentstring = $token->[2];
1877: } elsif ($target eq 'tex') {
1.243 albertel 1878: if ($Apache::londefdef::DT[-1]) {
1879: my $data=&item_cleanup();
1.244 albertel 1880: push(@{$Apache::londefdef::description[-1]},'\item['.$data.'] \strut \vskip 0mm');
1.243 albertel 1881: $Apache::londefdef::DT[-1]--;
1882: }
1.122 albertel 1883: }
1884: return $currentstring;
1885: }
1886:
1.173 sakharuk 1887: sub item_cleanup {
1.174 sakharuk 1888: my $item=&Apache::lonxml::endredirection();
1.173 sakharuk 1889: $item=~s/\\begin{center}//g;
1890: $item=~s/\\end{center}//g;
1891: return $item;
1892: }
1893:
1.181 sakharuk 1894: #-- <dd> tag (end tag optional)
1.122 albertel 1895: sub start_dd {
1.147 sakharuk 1896: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1897: my $currentstring = '';
1898: if ($target eq 'web') {
1899: $currentstring = $token->[4];
1.147 sakharuk 1900: } elsif ($target eq 'tex') {
1.243 albertel 1901: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1902: if ($Apache::londefdef::DD[-1]) { &end_dd(@_);}
1.244 albertel 1903: if (!$Apache::londefdef::seenDT[-1]) {
1904: push(@{$Apache::londefdef::description[-1]},'\item[\strut] \strut \vskip 0mm ');
1905: }
1.243 albertel 1906: push(@{$Apache::londefdef::description[-1]},'');
1907: $Apache::londefdef::description[-1]->[-1].=' \strut ';
1908: $Apache::londefdef::DD[-1]++;
1.174 sakharuk 1909: &Apache::lonxml::startredirection();
1.122 albertel 1910: }
1911: return $currentstring;
1912: }
1913:
1914: sub end_dd {
1.174 sakharuk 1915: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1916: my $currentstring = '';
1917: if ($target eq 'web') {
1918: $currentstring = $token->[2];
1.174 sakharuk 1919: } elsif ($target eq 'tex') {
1.243 albertel 1920: $Apache::londefdef::description[-1]->[-1].=
1921: &Apache::lonxml::endredirection().' \vskip 0mm ';
1922: $Apache::londefdef::DD[-1]--;
1.174 sakharuk 1923: }
1.122 albertel 1924: return $currentstring;
1925: }
1926:
1.181 sakharuk 1927: #-- <table> tag (end tag required)
1.277 foxr 1928: # <table> also ends any prior <p> that is not closed.
1929: # but, unless I allow <p>'s to nest, that's the
1930: # only way I could think of to allow <p> in
1931: # <tr> <th> bodies
1932: #
1.206 sakharuk 1933: #list of supported attributes: border,width,TeXwidth
1.91 sakharuk 1934: sub start_table {
1935: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 foxr 1936: my $textwidth = '';
1.279 foxr 1937: my $currentstring = &end_p();
1.91 sakharuk 1938: if ($target eq 'web') {
1.277 foxr 1939: $currentstring .= $token->[4];
1.91 sakharuk 1940: } elsif ($target eq 'tex') {
1941: my $aa = {};
1942: push @Apache::londefdef::table, $aa;
1943: $Apache::londefdef::table[-1]{'row_number'} = -1;
1.222 sakharuk 1944: #maximum table's width (default coincides with text line length)
1.206 sakharuk 1945: if ($#Apache::londefdef::table==0) {
1.267 albertel 1946: $textwidth=&recalc($env{'form.textwidth'}); #result is always in mm
1.206 sakharuk 1947: $textwidth=~/(\d+\.?\d*)/;
1948: $textwidth=0.95*$1; #accounts "internal" LaTeX space for table frame
1949: } else {
1950: if ($Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}]=~/\d/) {
1951: #the maximum width of nested table is determined by LATeX width of parent cell
1952: $textwidth=$Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}];
1953: } else {
1954: #try to use all space not used before (minus 5% for LaTeX table internal) - rather silly
1.228 sakharuk 1955: $textwidth=$Apache::londefdef::table[-2]{'width'};
1.206 sakharuk 1956: for (my $i=0;$i<$Apache::londefdef::table[-2]{'counter_columns'};$i++) {
1957: $textwidth=$textwidth-$Apache::londefdef::table[-2]{'TeXlen'}[0][$i];
1958: }
1959: }
1960: }
1.294 foxr 1961:
1962: # width either comes forced from the TeXwidth or the width parameters.
1963: # in either case it can be a percentage or absolute width.
1.311 albertel 1964: # in the width case we ignore absolute width
1.126 sakharuk 1965: my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1.308 albertel 1966: if (!defined($TeXwidth)) {
1.311 albertel 1967: my $htmlwidth = &Apache::lonxml::get_param('width',$parstack,
1968: $safeeval,undef,1);
1969: if ($htmlwidth =~ /%/) {
1970: $TeXwidth = $htmlwidth;
1971: } else {
1972: $TeXwidth = $textwidth;
1973: }
1.294 foxr 1974: } else {
1975: $Apache::londefdef::table[-1]{'forcedtablewidth'} = 1;
1976: }
1977: if ($TeXwidth=~/%/) {
1.203 sakharuk 1978: $Apache::londefdef::table[-1]{'percent'}=1;
1.126 sakharuk 1979: $TeXwidth=~/(\d+)/;
1.206 sakharuk 1980: $Apache::londefdef::table[-1]{'width'}=$1*$textwidth/100;
1.126 sakharuk 1981: } else {
1.206 sakharuk 1982: $Apache::londefdef::table[-1]{'width'}=$TeXwidth;
1.316 ! foxr 1983: }
! 1984: # In the end, however the table width cannot be wider than $textwidth...
! 1985:
! 1986: if ($Apache::londefdef::table[-1]{'width'} > $textwidth) {
! 1987: $Apache::londefdef::table[-1]{'width'} = $textwidth;
! 1988: }
1.294 foxr 1989:
1.126 sakharuk 1990: #table's border
1.206 sakharuk 1991: my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval);
1.208 sakharuk 1992: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
1.91 sakharuk 1993: unless (defined $border) { $border = 0; }
1994: if ($border) {
1995: $Apache::londefdef::table[-1]{'hinc'} = '\hline ';
1996: $Apache::londefdef::table[-1]{'vinc'} = '&';
1997: $Apache::londefdef::table[-1]{'vvinc'} = '|';
1998: } else {
1999: $Apache::londefdef::table[-1]{'hinc'} = '';
2000: $Apache::londefdef::table[-1]{'vinc'} = '&';
2001: $Apache::londefdef::table[-1]{'vvinc'} = '';
2002: }
1.206 sakharuk 2003: if ($#Apache::londefdef::table==0) {
1.281 foxr 2004: # Note that \newline seems to destroy the alignment envs.
2005: # $Apache::londefdef::table[-1]{'output'}='\strut\newline\strut\setlength{\tabcolsep}{1 mm}';
2006: $Apache::londefdef::table[-1]{'output'}='\strut'.'\\\\'."\n".'\strut\setlength{\tabcolsep}{1 mm}';
1.206 sakharuk 2007: }
2008: $Apache::londefdef::table[-1]{'output'}.=' \noindent \begin{tabular} ';
2009: $Apache::londefdef::table[-1]{'TeXlen'}=[];
2010: $Apache::londefdef::table[-1]{'objectlen'}=[];
1.229 sakharuk 2011: $Apache::londefdef::table[-1]{'objectsignal'}=[];
1.206 sakharuk 2012: $Apache::londefdef::table[-1]{'maxlen'}=[];
2013: $Apache::londefdef::table[-1]{'minlen'}=[];
2014: $Apache::londefdef::table[-1]{'content'}=[];
2015: $Apache::londefdef::table[-1]{'align'}=[];
1.277 foxr 2016: $currentstring.='\keephidden{NEW TABLE ENTRY}';
1.295 foxr 2017:
1.294 foxr 2018:
2019: }
1.91 sakharuk 2020: return $currentstring;
2021: }
1.122 albertel 2022:
2023: sub end_table {
2024: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2025: my $currentstring = '';
2026: if ($target eq 'web') {
2027: $currentstring = $token->[2];
2028: } elsif ($target eq 'tex') {
2029: my $inmemory = '';
2030: my $output = '';
1.206 sakharuk 2031: my $WARNING='';
1.305 foxr 2032: # &debug_dump_table($Apache::londefdef::table[-1]);
1.206 sakharuk 2033: #width of columns from TeXwidth attributes
1.294 foxr 2034:
1.206 sakharuk 2035: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2036: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2037: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]<$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn]) {
2038: $Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]=$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn];
2039: }
2040: }
2041: }
2042: #free space and number of empty columns
2043: my ($available_space,$empty_columns)=($Apache::londefdef::table[-1]{'width'},0);
1.228 sakharuk 2044: if ($#Apache::londefdef::table ne 0) {$available_space=0.9*$available_space;}
1.206 sakharuk 2045: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2046: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]==0) {
2047: $empty_columns++;
2048: } else {
2049: $available_space=$available_space-$Apache::londefdef::table[-1]{'TeXlen'}[0][$jn];
2050: }
2051: }
2052: #boundaries for contents columns
2053: my @min_len=();#columns can not be narrower
2054: my @max_len=();#maximum length of column
2055: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2056: my ($localmin,$localmax)=(0,0);
2057: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2058: if ($localmin<$Apache::londefdef::table[-1]{'minlen'}[$in][$jn]) {
2059: $localmin=$Apache::londefdef::table[-1]{'minlen'}[$in][$jn];
2060: }
2061: if ($localmax<$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn]) {
2062: $localmax=$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn];
2063: }
2064: }
2065: push @min_len, $localmin;
2066: push @max_len, $localmax;
1.122 albertel 2067: }
1.206 sakharuk 2068: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2069: my $localmin=0,;
2070: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2071: if ($localmin<$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn]) {
2072: $localmin=$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn];
2073: }
2074: }
1.229 sakharuk 2075: if ($max_len[$jn]<$localmin) {
2076: $max_len[$jn]=$localmin;
2077: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
2078: }#object size is bigger
2079: if ($min_len[$jn]<$localmin) {
2080: $min_len[$jn]=$localmin;
2081: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
2082: }#object size is bigger
1.206 sakharuk 2083: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]!=0) {
2084: $min_len[$jn]=0;
2085: $max_len[$jn]=0;
2086: }
2087: }
2088: #final adjustment of column width
2089: my @fwidth=@{$Apache::londefdef::table[-1]{'TeXlen'}[0]};#final width array
2090: my @adjust=();
2091: #step 1. adjustment by maximum value
2092: my $space_neeeded=0;
2093: for (my $jn=0;$jn<=$#max_len;$jn++) {
2094: $space_neeeded=$space_neeeded+$max_len[$jn];
2095: }
2096: if ($space_neeeded<=$available_space) {
2097: for (my $jn=0;$jn<=$#max_len;$jn++) {
2098: if ($fwidth[$jn]==0) {
2099: $fwidth[$jn]=$max_len[$jn];
1.53 sakharuk 2100: }
1.51 sakharuk 2101: }
1.206 sakharuk 2102: } else {
2103: #step 2. adjustment by minimum value (estimation)
2104: $space_neeeded=0;
2105: for (my $jn=0;$jn<=$#min_len;$jn++) {
2106: $space_neeeded+=$min_len[$jn];
2107: }
2108: if ($space_neeeded>$available_space) {
2109: $WARNING=' \textbf{NOT ENOUGH SPACE FOR TABLE} ';
2110: for (my $jn=0;$jn<=$#max_len;$jn++) {
2111: if ($fwidth[$jn]==0) {
2112: $fwidth[$jn]=$min_len[$jn];
2113: }
2114: }
1.229 sakharuk 2115: #check if we have objects which can be scaled
2116: my $how_many_to_scale=0;
2117: my @to_scale=();
2118: for (my $jn=0;$jn<=$#max_len;$jn++) {
2119: if ($Apache::londefdef::table[-1]{'objectsignal'}[$jn] eq '1') {
2120: $how_many_to_scale++;
2121: push @to_scale, $jn;
2122: }
2123: }
2124: if ($how_many_to_scale>0) {
2125: my $space_to_adjust=($space_neeeded-$available_space)/$how_many_to_scale;
2126: foreach my $jn (@to_scale) {
2127: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2128: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/;
2129: if ($1 ne '') {
2130: my $current_length=&recalc($1);
2131: $current_length=~/(\d+\.?\d*)/;
2132: $current_length=$current_length-$space_to_adjust;
2133: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/width=$current_length mm/;
2134: }
2135: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/\[(\d+\.?\d*)\s*mm\]/;
2136: if ($1 ne '') {
2137: my $current_length=$1;
2138: $current_length=$current_length-$space_to_adjust;
2139: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/\[(\d+\.?\d*)\s*mm\]/\[$current_length mm\]/;
2140: }
2141: }
2142: $fwidth[$jn]=$fwidth[$jn]-$space_to_adjust;
2143: }
2144: }
1.206 sakharuk 2145: } else {
2146: #step 3. adjustment over minimal + corrections
2147: my $enlarge_coef=$available_space/$space_neeeded;
2148: my $acsessive=0;
2149: for (my $jn=0;$jn<=$#min_len;$jn++) {
2150: $adjust[$jn]=$min_len[$jn]*$enlarge_coef;
2151: if ($adjust[$jn]>$max_len[$jn]) {
2152: $fwidth[$jn]=$max_len[$jn];
2153: $acsessive=$acsessive+$adjust[$jn]-$max_len[$jn];
2154: $adjust[$jn]=0;
2155: }
2156: }
2157: if ($acsessive>0) {
2158: #we have an excess of space and can redistribute it
2159: my $notempty_columns=0;
2160: for (my $jn=0;$jn<=$#min_len;$jn++) {
2161: if ($adjust[$jn]!=0) {
2162: $notempty_columns++;
2163: }
2164: }
2165: my $per_column=$acsessive/$notempty_columns;
2166: for (my $jn=0;$jn<=$#min_len;$jn++) {
2167: if ($adjust[$jn]!=0) {
2168: $adjust[$jn]+=$per_column;
2169: $fwidth[$jn]=$adjust[$jn];
2170: }
1.223 sakharuk 2171: }
2172: } else {
2173: for (my $jn=0;$jn<=$#min_len;$jn++) {
2174: $fwidth[$jn]=$adjust[$jn];
1.206 sakharuk 2175: }
2176: }
1.203 sakharuk 2177: }
2178: }
1.222 sakharuk 2179: #use all available width if it is defined in % or as TeXwidth
2180: if (($Apache::londefdef::table[-1]{'percent'}==1) || ($Apache::londefdef::table[-1]{'forcetablewidth'}==1)) {
1.203 sakharuk 2181: my $current=0;
1.206 sakharuk 2182: for (my $i=0;$i<=$#fwidth;$i++) {
2183: $current+=$fwidth[$i];
1.203 sakharuk 2184: }
2185: my $coef=$Apache::londefdef::table[-1]{'width'}/$current;
1.206 sakharuk 2186: for (my $i=0;$i<=$#fwidth;$i++) {
2187: $fwidth[$i]*=$coef;
2188: }
2189: }
2190: #removing of empty columns if allowed
1.208 sakharuk 2191: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
1.206 sakharuk 2192: if ($permission eq 'yes') {
2193: my @cleaned_table=();
2194: my @cleaned_header=();
2195: my $colind=0;
2196: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2197: if ($fwidth[$jn]!=0) {
2198: #we need to copy column
2199: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2200: $cleaned_table[$in][$colind]=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
2201: $cleaned_header[$colind]=$fwidth[$jn];
2202: }
2203: $colind++;
2204: }
1.122 albertel 2205: }
1.206 sakharuk 2206: $Apache::londefdef::table[-1]{'content'}=\@cleaned_table;
2207: @fwidth=@cleaned_header;
1.122 albertel 2208: }
1.206 sakharuk 2209: #construct header of the table
2210: my $header_of_table = '{'.$Apache::londefdef::table[-1]{'vvinc'};
2211: for (my $in=0;$in<=$#fwidth;$in++) {
2212: $header_of_table.='p{'.$fwidth[$in].' mm}'.$Apache::londefdef::table[-1]{'vvinc'};
2213: }
2214: $header_of_table .= '}';
1.126 sakharuk 2215: #fill the table
2216: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1.306 foxr 2217: my $have_rowspan = 0;
1.206 sakharuk 2218: for (my $jn=0;$jn<=$#fwidth;$jn++) {
1.304 foxr 2219: #
2220: # Do the appropriate magic if this has a colspan
2221: #
2222: my $colspan = $Apache::londefdef::table[-1]{'colspan'}[$in][$jn];
2223: if ($colspan > 1) {
2224: $output .= '\multicolumn{'.
2225: $colspan
2226: .'}{|l|}{';
2227: }
1.306 foxr 2228: my $rowspan = $Apache::londefdef::table[-1]{'rowspan'}[$in][$jn];
2229:
2230: # Start a rowspan if necessary:
2231:
2232: if ($rowspan > 1) {
2233: $have_rowspan++;
2234: $output .= '\multirow{'.$rowspan.'}[0]{'.$fwidth[$jn].'mm}{';
2235: }
2236: if (($rowspan eq '^') || ($rowspan eq '_')) {
2237: $have_rowspan++;
2238: }
2239:
1.206 sakharuk 2240: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
1.309 albertel 2241: $output.=¢er_correction().'\begin{center}';
1.206 sakharuk 2242: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
2243: $output.=' \hfill \llap{'
2244: }
2245: $output.=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
2246: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
1.314 albertel 2247: $output.='\end{center}';
1.206 sakharuk 2248: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
2249: $output.='} ';
2250: }
1.306 foxr 2251: # Close off any open multirow:
2252:
2253: if ($rowspan > 1) {
2254: $output .= '}';
2255: }
1.304 foxr 2256: # Close off the colspan...
2257: #
2258: if ($colspan > 1) {
2259: $output .= '}';
2260: $jn += $colspan-1; # Adjust for number of rows really left.
2261: }
1.206 sakharuk 2262: if ($jn!=$#fwidth) {$output.=' '.$Apache::londefdef::table[-1]{'vinc'};}
2263: }
1.306 foxr 2264: # If have_rowspan > 0, and borders are on, then
2265: # we need to do more than put an \hline at the bottom of row.
2266: # we need to do the appropriate \cline to ensure that
2267: # the spanned rows don't have \hlines through them.
2268:
2269: if (($Apache::londefdef::table[-1]{'hinc'} =~ /\\hline/) && $have_rowspan) {
2270: $output .= ' \\\\ ';
2271: for (my $jn=0; $jn<=$#fwidth;$jn++) {
2272: my $rowspan = $Apache::londefdef::table[-1]{'rowspan'}[$in][$jn];
2273: if (($rowspan <= 1) || ($rowspan eq '_')) {
2274: my $column = $jn+1;
2275: $output .= '\cline{'.$column.'-'.$column.'} ';
2276: }
2277: }
2278:
2279: } else {
2280: $output.=' \\\\ '.$Apache::londefdef::table[-1]{'hinc'}.' ';
2281: }
1.122 albertel 2282: }
1.281 foxr 2283: # Note that \newline destroys alignment env's produced by e.g. <div>
2284: # $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut\newline\strut ';
2285: $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut'.'\\\\'."\n".'\strut ';
1.127 sakharuk 2286: if ($#Apache::londefdef::table > 0) {
2287: my $inmemory = $Apache::londefdef::table[-1]{'output'};
1.294 foxr 2288: # Figure out max/and min width by summing us and then
2289: # apply that to the current column of the table we nest in
2290: # if it's larger than the current width or the current width
2291: # is undefined.
2292: #
2293: my $min_nested_width = 0;
2294: my $max_nested_width = 0;
2295: for (my $col = 0; $col <= $Apache::londefdef::table[-1]{'counter_columns'}; $col++) {
2296: $min_nested_width += $min_len[$col];
2297: $max_nested_width += $max_len[$col];
1.300 foxr 2298:
1.294 foxr 2299: }
2300: # Fudge in an extra 5 mm for borders etc:
2301:
2302: $min_nested_width += 5;
2303: $max_nested_width += 5;
2304:
2305: my $outer_column = $Apache::londefdef::table[-2]{'counter_columns'};
2306: my $outer_row = $Apache::londefdef::table[-2]{'row_number'};
2307: if ($min_nested_width > $Apache::londefdef::table[-2]{'minlen'}[$outer_row][$outer_column]) {
2308: $Apache::londefdef::table[-2]{'minlen'}[$outer_row][$outer_column] = $min_nested_width;
2309: }
2310: if ($max_nested_width > $Apache::londefdef::table[-2]{'maxlen'}[$outer_row][$outer_column]) {
2311: $Apache::londefdef::table[-2]{'maxlen'}[$outer_row][$outer_column] = $max_nested_width;
2312: }
2313:
1.127 sakharuk 2314: pop @Apache::londefdef::table;
1.129 sakharuk 2315: push @{$Apache::londefdef::table[-1]{'include'}}, $inmemory;
1.127 sakharuk 2316: } else {
2317: $currentstring .= $Apache::londefdef::table[-1]{'output'};
2318: pop @Apache::londefdef::table;
1.143 sakharuk 2319: undef @Apache::londefdef::table;
1.127 sakharuk 2320: }
1.122 albertel 2321: }
2322: return $currentstring;
2323: }
2324:
1.166 sakharuk 2325: #-- <tr> tag (end tag optional)
1.122 albertel 2326: sub start_tr {
2327: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2328: my $currentstring = '';
2329: if ($target eq 'web') {
2330: $currentstring = $token->[4];
2331: } elsif ($target eq 'tex') {
2332: $Apache::londefdef::table[-1]{'row_number'}++;
1.206 sakharuk 2333: my $alignchar=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.122 albertel 2334: if ($alignchar ne '') {
1.206 sakharuk 2335: push @ {$Apache::londefdef::table[-1]{'rows'} },substr($alignchar,0,1);
1.122 albertel 2336: } else {
2337: push @ {$Apache::londefdef::table[-1]{'rows'} }, 'l';
2338: }
2339: push ( @{ $Apache::londefdef::table[-1]{'rowdata'} }, $Apache::londefdef::table[-1]{'hinc'});
1.300 foxr 2340: #
2341: # Need to save the number of table columns to preserve the max # columns.
2342: #
2343: $Apache::londefdef::table[-1]{'prior_columns'} = $Apache::londefdef::table[-1]{'counter_columns'};
1.122 albertel 2344: $Apache::londefdef::table[-1]{'counter_columns'} = -1;
1.206 sakharuk 2345: push @ {$Apache::londefdef::table[-1]{'TeXlen'}}, [];
2346: push @ {$Apache::londefdef::table[-1]{'objectlen'}}, [];
2347: push @ {$Apache::londefdef::table[-1]{'minlen'}}, [];
2348: push @ {$Apache::londefdef::table[-1]{'maxlen'}}, [];
2349: push @ {$Apache::londefdef::table[-1]{'content'}}, [];
1.122 albertel 2350: }
2351: return $currentstring;
2352: }
2353:
2354: sub end_tr {
1.160 sakharuk 2355: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 2356: my $currentstring = &end_p(); # Close any pending <p> in the row.
1.122 albertel 2357: if ($target eq 'web') {
1.277 foxr 2358: $currentstring .= $token->[2];
1.122 albertel 2359: } elsif ($target eq 'tex') {
1.160 sakharuk 2360: if ($Apache::londefdef::TD_redirection) {
2361: &end_td_tex($parstack,$parser,$safeeval);
2362: }
1.300 foxr 2363: # Counter columns must be the maximum number of columns seen
2364: # in the table so far so:
2365: if ($Apache::londefdef::table[-1]{'prior_columns'} > $Apache::londefdef::table[-1]{'counter_columns'}) {
2366: $Apache::londefdef::table[-1]{'counter_columns'} = $Apache::londefdef::table[-1]{'prior_columns'};
2367: }
1.295 foxr 2368:
2369:
1.294 foxr 2370:
1.122 albertel 2371: }
2372: return $currentstring;
2373: }
2374:
1.166 sakharuk 2375: #-- <td> tag (end tag optional)
1.122 albertel 2376: sub start_td {
2377: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2378: my $currentstring = '';
2379: if ($target eq 'web') {
2380: $currentstring = $token->[4];
2381: } elsif ($target eq 'tex') {
1.160 sakharuk 2382: $Apache::londefdef::TD_redirection = 1;
1.159 sakharuk 2383: &tag_check('tr','td',$tagstack,$parstack,$parser,$safeeval);
1.122 albertel 2384: }
2385: return $currentstring;
2386: }
1.159 sakharuk 2387:
2388: sub tag_check {
2389: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
1.160 sakharuk 2390: my @ar=@$parstack;
2391: for (my $i=$#ar-1;$i>=0;$i--) {
2392: if (lc($$tagstack[$i]) eq $good_tag) {
2393: &start_td_tex($parstack,$parser,$safeeval);
2394: last;
2395: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2396: splice @ar, $i+1;
2397: &end_td_tex(\@ar,$parser,$safeeval);
2398: &start_td_tex($parstack,$parser,$safeeval);
2399: last;
1.159 sakharuk 2400: }
1.160 sakharuk 2401: }
1.159 sakharuk 2402: return '';
2403: }
2404:
2405: sub start_td_tex {
2406: my ($parstack,$parser,$safeeval) = @_;
1.206 sakharuk 2407: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2408: if ($alignchar eq '') {
2409: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
1.159 sakharuk 2410: }
1.206 sakharuk 2411: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
1.159 sakharuk 2412: $Apache::londefdef::table[-1]{'counter_columns'}++;
1.206 sakharuk 2413: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2414: if (defined $TeXwidth) {
2415: my $current_length=&recalc($TeXwidth);
2416: $current_length=~/(\d+\.?\d*)/;
2417: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2418: }
1.159 sakharuk 2419: &Apache::lonxml::startredirection();
2420: return '';
2421: }
2422:
2423: sub end_td_tex {
2424: my ($parstack,$parser,$safeeval) = @_;
1.304 foxr 2425: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2426: my $current_column = $Apache::londefdef::table[-1]{'counter_columns'};
1.303 foxr 2427: my $data = &Apache::lonxml::endredirection();
2428:
1.305 foxr 2429: # The rowspan array of the table indicates which cells are part of a span.
2430: # n indicates the start of a span set of n rows.
2431: # ^ indicates a cell that continues a span set.
1.306 foxr 2432: # _ indicates the cell is at the bottom of a span set.
1.305 foxr 2433: # If this and subsequent cells are part of a rowspan, we must
2434: # push along the row until we find one that is not.
2435:
2436: while ((defined $Apache::londefdef::table[-1]{'rowspan'}[$current_row] [$current_column])
1.306 foxr 2437: && ($Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column] =~ /[\^\_]/)) {
1.305 foxr 2438: # Part of a span.
2439: push @ {$Apache::londefdef::table[-1]{'content'}[-1]}, '';
2440: $current_column++;
2441: }
2442: $Apache::londefdef::table[-1]{'counter_columns'} = $current_column;
2443:
2444:
2445:
2446: my $rowspan = &Apache::lonxml::get_param('rowspan', $parstack, $safeeval, undef, 0);
2447: if (!$rowspan) {
2448: $rowspan = 1;
2449: }
2450:
1.303 foxr 2451:
1.305 foxr 2452:
2453: $Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column] = $rowspan;
2454: for (my $i = 1; $i < $rowspan; $i++) {
2455: $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column] = '^';
1.306 foxr 2456: if ($i == ($rowspan-1)) {
2457: $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column] = '_';
2458: }
1.305 foxr 2459: }
1.304 foxr 2460:
1.159 sakharuk 2461: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2462: if (defined $TeXwidth) {
1.206 sakharuk 2463: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2464: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2465: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
1.159 sakharuk 2466: } else {
1.206 sakharuk 2467: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2468: my $garbage_data=$data;
2469: my $fwidth=0;
2470: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2471: my $current_length=&recalc($1);
2472: $current_length=~/(\d+\.?\d*)/;
2473: if ($fwidth<$1) {$fwidth=$1;}
2474: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2475: }
2476: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2477: my $current_length=$1;
2478: if ($fwidth<$current_length) {$fwidth=$current_length;}
2479: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2480: }
2481: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2482: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2483: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2484: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
1.231 sakharuk 2485: } elsif ($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)*/) {
2486: my $garbage_data=$data;
2487: my $fwidth=0;
2488: while ($garbage_data=~/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)\s*\}/) {
2489: my $current_length=&recalc($1);
2490: $current_length=~/(\d+\.?\d*)/;
2491: if ($fwidth<$1) {$fwidth=$1;}
2492: $garbage_data=~s/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2493: }
2494: while ($garbage_data=~/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2495: my $current_length=&recalc($1);
2496: $current_length=~/(\d+\.?\d*)/;
2497: if ($fwidth<$1) {$fwidth=$1;}
2498: $garbage_data=~s/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2499: }
2500: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2501: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2502: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2503: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2504: $data=~s/\\\\\s*$//;
1.159 sakharuk 2505: } else {
1.166 sakharuk 2506: $data=~s/^\s+(\S.*)/$1/;
1.159 sakharuk 2507: $data=~s/(.*\S)\s+$/$1/;
1.166 sakharuk 2508: $data=~s/(\s)+/$1/;
1.206 sakharuk 2509: my ($current_length,$min_length)=(0,0);
1.166 sakharuk 2510: if ($data=~/\\vskip/) {
2511: my $newdata=$data;
2512: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2513: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2514: foreach my $elementdata (@newdata) {
1.206 sakharuk 2515: my $lengthnewdata=2.5*&LATEX_length($elementdata);
1.166 sakharuk 2516: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
1.206 sakharuk 2517: my @words=split(/ /,$elementdata);
2518: foreach my $word (@words) {
2519: my $lengthword=2.5*&LATEX_length($word);
2520: if ($min_length<$lengthword) {$min_length=$lengthword;}
2521: }
1.166 sakharuk 2522: }
2523: } else {
1.206 sakharuk 2524: $current_length=2.5*&LATEX_length($data);
2525: my @words=split(/ /,$data);
2526: foreach my $word (@words) {
1.228 sakharuk 2527: my $lengthword=2*&LATEX_length($word);
1.206 sakharuk 2528: if ($min_length<$lengthword) {$min_length=$lengthword;}
2529: }
1.166 sakharuk 2530: }
1.206 sakharuk 2531: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2532: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2533: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2534: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
1.159 sakharuk 2535: }
2536: }
1.302 foxr 2537: # Substitute all of the tables nested in this cell in their appropriate places.
2538:
2539:
2540: my $nested_count = $#{$Apache::londefdef::table[-1]{'include'}}; # This one is constant...
2541: for (my $in=0; $in<=$nested_count; $in++) {
1.301 foxr 2542: my $nested = shift @{$Apache::londefdef::table[-1]{'include'}};
2543: $nested =~ s/\\end\{tabular\}\\strut\\\\/\\end\{tabular\}/;
2544: # $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2545: $data =~ s/\\keephidden\{NEW TABLE ENTRY\}/$nested/;
2546:
2547: }
2548: # Should be be killing off the 'include' elements as they're used up?
1.305 foxr 2549:
1.206 sakharuk 2550: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
1.305 foxr 2551:
1.304 foxr 2552: # Get the column and row spans.
2553: # Colspan can be done via \multicolumn if I can figure out the data structs.
2554:
2555: my $colspan = &Apache::lonxml::get_param('colspan', $parstack, $safeeval, undef, 0);
2556: if (!$colspan) {
2557: $colspan = 1;
2558: }
2559:
2560:
2561: # the colspan array will indicate how many columns will be spanned by this
2562: # cell..this requires that counter_columns also be adjusted accordingly
2563: # so that the next bunch of text goes in the right cell. Note that since
2564: # counter_columns is incremented in the start_td_tex, we adjust by colspan-1.
2565: #
2566:
2567: $Apache::londefdef::table[-1]{'colspan'}[$current_row][$current_column] = $colspan;
2568: $Apache::londefdef::table[-1]{'counter_columns'} += $colspan -1;
2569:
2570: # Put empty text in spanned cols.
2571:
2572: for (my $i = 0; $i < ($colspan -1); $i++) {
2573: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },'';
2574: }
2575:
2576:
1.301 foxr 2577: return '';
1.159 sakharuk 2578: }
2579:
1.122 albertel 2580: sub end_td {
1.126 sakharuk 2581: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 2582: my $currentstring = '';
2583: if ($target eq 'web') {
2584: $currentstring = $token->[2];
2585: } elsif ($target eq 'tex') {
1.160 sakharuk 2586: $Apache::londefdef::TD_redirection =0;
1.159 sakharuk 2587: &end_td_tex($parstack,$parser,$safeeval);
1.122 albertel 2588: }
2589: return $currentstring;
2590: }
2591:
1.166 sakharuk 2592: #-- <th> tag (end tag optional)
1.122 albertel 2593: sub start_th {
2594: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2595: my $currentstring = '';
2596: if ($target eq 'web') {
2597: $currentstring = $token->[4];
2598: } elsif ($target eq 'tex') {
1.230 sakharuk 2599: $Apache::londefdef::TD_redirection = 1;
2600: &tagg_check('tr','th',$tagstack,$parstack,$parser,$safeeval);
1.122 albertel 2601: }
2602: return $currentstring;
1.130 sakharuk 2603: }
1.230 sakharuk 2604:
2605: sub tagg_check {
2606: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
2607: my @ar=@$parstack;
2608: for (my $i=$#ar-1;$i>=0;$i--) {
2609: if (lc($$tagstack[$i]) eq $good_tag) {
2610: &start_th_tex($parstack,$parser,$safeeval);
2611: last;
2612: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2613: splice @ar, $i+1;
2614: &end_th_tex(\@ar,$parser,$safeeval);
2615: &start_th_tex($parstack,$parser,$safeeval);
2616: last;
2617: }
2618: }
2619: return '';
2620: }
2621:
2622: sub start_th_tex {
2623: my ($parstack,$parser,$safeeval) = @_;
2624: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2625: if ($alignchar eq '') {
2626: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
2627: }
2628: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
2629: $Apache::londefdef::table[-1]{'counter_columns'}++;
2630: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2631: if (defined $TeXwidth) {
2632: my $current_length=&recalc($TeXwidth);
2633: $current_length=~/(\d+\.?\d*)/;
2634: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2635: }
2636: &Apache::lonxml::startredirection();
2637: return '';
2638: }
2639:
2640: sub end_th_tex {
2641: my ($parstack,$parser,$safeeval) = @_;
2642: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2643: my $data=&Apache::lonxml::endredirection();
2644: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2645: if (defined $TeXwidth) {
2646: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2647: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2648: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2649: } else {
2650: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2651: my $garbage_data=$data;
2652: my $fwidth=0;
2653: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2654: my $current_length=&recalc($1);
2655: $current_length=~/(\d+\.?\d*)/;
2656: if ($fwidth<$1) {$fwidth=$1;}
2657: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2658: }
2659: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2660: my $current_length=$1;
2661: if ($fwidth<$current_length) {$fwidth=$current_length;}
2662: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2663: }
2664: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2665: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2666: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2667: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2668: } else {
2669: $data=~s/^\s+(\S.*)/$1/;
2670: $data=~s/(.*\S)\s+$/$1/;
2671: $data=~s/(\s)+/$1/;
2672: my ($current_length,$min_length)=(0,0);
2673: if ($data=~/\\vskip/) {
2674: my $newdata=$data;
2675: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2676: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2677: foreach my $elementdata (@newdata) {
2678: my $lengthnewdata=2.5*&LATEX_length($elementdata);
2679: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
2680: my @words=split(/ /,$elementdata);
2681: foreach my $word (@words) {
2682: my $lengthword=2.5*&LATEX_length($word);
2683: if ($min_length<$lengthword) {$min_length=$lengthword;}
2684: }
2685: }
2686: } else {
2687: $current_length=2.5*&LATEX_length($data);
2688: my @words=split(/ /,$data);
2689: foreach my $word (@words) {
2690: my $lengthword=2*&LATEX_length($word);
2691: if ($min_length<$lengthword) {$min_length=$lengthword;}
2692: }
2693: }
2694: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2695: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2696: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2697: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
2698: }
2699: }
2700: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
2701: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2702: }
2703: #make data bold
2704: $data='\textbf{'.$data.'}';
2705: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
2706: return'';
2707: }
2708:
1.122 albertel 2709: sub end_th {
1.130 sakharuk 2710: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 2711: my $currentstring = &end_p(); # Close any open <p> in the row.
1.122 albertel 2712: if ($target eq 'web') {
1.277 foxr 2713: $currentstring .= $token->[2];
1.122 albertel 2714: } elsif ($target eq 'tex') {
1.230 sakharuk 2715: $Apache::londefdef::TD_redirection =0;
2716: &end_th_tex($parstack,$parser,$safeeval);
1.122 albertel 2717: }
2718: return $currentstring;
2719: }
1.230 sakharuk 2720:
1.181 sakharuk 2721: #-- <img> tag (end tag forbidden)
1.249 foxr 2722: #
2723: # Render the <IMG> tag.
2724: # <IMG> has the following attributes (in addition to the
2725: # standard HTML ones:
2726: # TeXwrap - Governs how the tex target will try to wrap text around
2727: # horizontally aligned images.
2728: # TeXwidth - The width of the image when rendered for print (mm).
2729: # TeXheight - The height of the image when rendered for print (mm)
2730: # (Note there seems to also be support for this as a % of page size)
2731: #
1.122 albertel 2732: sub start_img {
1.299 albertel 2733: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 2734: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,
2735: undef,1);
1.189 albertel 2736: if (not $src and ($target eq 'web' or $target eq 'tex')) {
1.299 albertel 2737: my $inside = &Apache::lonxml::get_all_text("/img",$parser,$style);
1.189 albertel 2738: return '';
2739: }
1.290 albertel 2740: &Apache::lonxml::extlink($src);
1.122 albertel 2741: my $currentstring = '';
2742: my $scaling = .3;
1.249 foxr 2743:
2744: # Render unto browsers that which are the browser's...
2745:
1.122 albertel 2746: if ($target eq 'web') {
1.267 albertel 2747: if ($env{'browser.imagesuppress'} ne 'on') {
1.250 albertel 2748: $currentstring.=&Apache::lonenc::encrypt_ref($token,{'src'=>$src});
1.122 albertel 2749: } else {
2750: my $alttag= &Apache::lonxml::get_param
2751: ('alt',$parstack,$safeeval,undef,1);
2752: unless ($alttag) {
2753: $alttag=&Apache::lonmeta::alttag
2754: ($Apache::lonxml::pwd[-1],$src);
1.51 sakharuk 2755: }
1.158 sakharuk 2756: $currentstring.='[IMAGE: '.$alttag.']';
1.1 sakharuk 2757: }
1.249 foxr 2758:
2759: # and render unto TeX that which is LaTeX
2760:
1.122 albertel 2761: } elsif ($target eq 'tex') {
1.248 foxr 2762: #
2763: # The alignment will require some superstructure to be put around
2764: # the \includegraphics stuff. At present we can only partially
2765: # simulate the alignments offered by html.
2766: #
2767: #
2768: my $align = lc(&Apache::lonxml::get_param('align',
2769: $parstack,
2770: $safeeval,
2771: undef,1));
2772: if(!$align) {
1.287 foxr 2773: $align = "bottom"; # This is html's default so it's ours too.
1.248 foxr 2774: }
2775: #
2776: &Apache::lonxml::debug("Alignemnt = $align");
2777: # LaTeX's image/text wrapping is really bad since it wants to
2778: # make figures float.
2779: # The user has the optional parameter (applicable only to l/r
2780: # alignment to use the picins/parpic directive to get wrapped text
2781: # this is also imperfect.. that's why we give them a choice...
2782: # so they can't yell at us for our choice.
2783: #
2784: my $latex_rendering = &Apache::lonxml::get_param('TeXwrap',
2785: $parstack,
2786: $safeeval,
2787: undef,0);
1.312 foxr 2788: # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering");
1.248 foxr 2789: if(!$latex_rendering) {
1.312 foxr 2790: $latex_rendering = "texwrap";
2791: }
2792: # using texwrap inside a table does not work. So, if after all of this,
2793: # texwrap is on, we turn it off if we detect we're in a table:
2794: #
2795: if (($latex_rendering eq 'texwrap') && &is_inside_of($tagstack, "table")) {
2796: $latex_rendering = 'parpic';
1.248 foxr 2797: }
1.312 foxr 2798: # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering image file: $src");
1.248 foxr 2799:
1.256 albertel 2800: #if original gif/jpg/png file exist do following:
1.266 albertel 2801: my $origsrc=$src;
1.256 albertel 2802: my ($path,$file) = &get_eps_image($src);
1.122 albertel 2803: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.261 foxr 2804: &Apache::lonxml::debug("path = $path file = $file src = $src");
1.192 sakharuk 2805: if (-e $src) {
1.261 foxr 2806: &Apache::lonxml::debug("$src exists");
1.256 albertel 2807: my ($height_param,$width_param)=
1.266 albertel 2808: &image_size($origsrc,0.3,$parstack,$safeeval);
1.262 foxr 2809: my $destpath = $path;
1.263 foxr 2810: $destpath =~ s/ /\_/g; # Spaces in path cause LaTex to vomit.
2811: my $destfile = $file;
2812: $destfile =~ s/ /\_/g;
1.266 albertel 2813: my $size;
2814: if ($width_param) { $size.='width='.$width_param.' mm,'; }
2815: if ($height_param) { $size.='height='.$height_param.' mm]'; }
2816: $size='['.$size;
2817: $size=~s/,$/]/;
1.262 foxr 2818: $currentstring .= '\graphicspath{{'.$destpath.'}}'
1.266 albertel 2819: .'\includegraphics'.$size.'{'.$destfile.'} ';
1.256 albertel 2820:
1.248 foxr 2821: # If there's an alignment specification we need to honor it here.
2822: # For the horizontal alignments, we will also honor the
2823: # value of the latex specfication. The default is parbox,
2824: # and that's used for illegal values too.
2825: #
2826: # Even though we set a default alignment value, the user
2827: # could have given us an illegal value. In that case we
2828: # just use the default alignment of bottom..
2829: if ($align eq "top") {
2830: $currentstring = '\raisebox{-'.$height_param.'mm}{'.$currentstring.'}';
2831: } elsif (($align eq "center") || ($align eq "middle")) { # Being kind
2832: my $offset = $height_param/2;
2833: $currentstring = '\raisebox{-'.$offset.'mm}{'.$currentstring.'}';
2834: } elsif ($align eq "left") {
2835: if ($latex_rendering eq "parpic") {
2836: $currentstring = '\parpic[l]{'.$currentstring.'}';
1.286 foxr 2837: } else { # wrapfig render
2838: $currentstring = '\begin{wrapfigure}{l}{'.$width_param.'mm}'
2839: .'\scalebox{1.0}{'.$currentstring.'}\end{wrapfigure}';
1.248 foxr 2840: }
2841: } elsif ($align eq "right") {
2842: if ($latex_rendering eq "parpic") {
2843: $currentstring = '\parpic[r]{'.$currentstring.'}';
1.286 foxr 2844: } else { # wrapfig rendering
2845: $currentstring = '\begin{wrapfigure}{r}{'.$width_param.'mm}'
2846: .'\scalebox{1.0}{'.$currentstring.'}\end{wrapfigure}';
2847:
1.248 foxr 2848: }
2849: } else { # Bottom is also default.
2850: # $currentstring = '\raisebox{'.$height_param.'mm}{'.$currentstring.'}';
2851: }
1.122 albertel 2852: } else {
1.261 foxr 2853: &Apache::lonxml::debug("$src does not exist");
1.122 albertel 2854: #original image file doesn't exist so check the alt attribute
2855: my $alt =
2856: &Apache::lonxml::get_param('alt',$parstack,$safeeval,undef,1);
2857: unless ($alt) {
2858: $alt=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
2859: }
2860:
1.256 albertel 2861: if ($alt) { $currentstring .= ' '.$alt.' '; }
1.59 sakharuk 2862: }
1.249 foxr 2863:
2864: # And here's where the semi-quote breaks down: allow the user
2865: # to edit the beast as well by rendering the problem for edit:
1.186 albertel 2866: } elsif ($target eq 'edit') {
2867: $currentstring .=&Apache::edit::tag_start($target,$token);
2868: $currentstring .=&Apache::edit::text_arg('Image Url:','src',$token,70).
2869: &Apache::edit::browse('src',undef,'alt').' '.
2870: &Apache::edit::search('src',undef,'alt').'<br />';
2871: $currentstring .=&Apache::edit::text_arg('Description:','alt',$token,70).'<br />';
2872: $currentstring .=&Apache::edit::text_arg('width (pixel):','width',$token,5);
2873: $currentstring .=&Apache::edit::text_arg('height (pixel):','height',$token,5).'<br />';
2874: $currentstring .=&Apache::edit::text_arg('TeXwidth (mm):','TeXwidth',$token,5);
2875: $currentstring .=&Apache::edit::text_arg('TeXheight (mm):','TeXheight',$token,5);
1.234 albertel 2876: $currentstring .=&Apache::edit::select_arg('Alignment:','align',
2877: ['','bottom','middle','top','left','right'],$token,5);
1.249 foxr 2878: $currentstring .=&Apache::edit::select_arg('TeXwrap:', 'TeXwrap',
2879: ['', 'parbox', 'parpic'], $token, 2);
1.186 albertel 2880: $currentstring .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1.249 foxr 2881: my $src= &Apache::lonxml::get_param('src',$parstack,$safeeval);
2882: my $alt= &Apache::lonxml::get_param('alt',$parstack,$safeeval);
2883: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
2884: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
2885:
2886:
1.186 albertel 2887: $currentstring .= '<img src="'.$src.'" alt="'.$alt.'" ';
2888: if ($width) { $currentstring.=' width="'.$width.'" '; }
2889: if ($height) { $currentstring.=' height="'.$height.'" '; }
2890: $currentstring .= ' />';
2891: } elsif ($target eq 'modified') {
1.210 albertel 2892: my ($osrc,$owidth,$oheight)=
2893: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2894: my $ctag=&Apache::edit::get_new_args($token,$parstack,
1.234 albertel 2895: $safeeval,'src','alt','align',
1.249 foxr 2896: 'TeXwidth','TeXheight', 'TeXwrap',
1.210 albertel 2897: 'width','height');
2898: my ($nsrc,$nwidth,$nheight)=
2899: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2900: my $loc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$nsrc);
2901: &image_replication($loc);
2902: my ($iwidth,$iheight);
2903: if (-e $loc) {
2904: my $image = Image::Magick->new;
2905: $image->Read($loc);
2906: ($iwidth, $iheight) = ($image->Get('width'),
2907: $image->Get('height'));
2908: }
2909: if ($osrc ne $nsrc || (!$nwidth && !$nheight)) {
2910: # changed image or no size specified,
2911: # if they didn't explicitly change the
2912: # width or height use the ones from the image
2913: if ($iwidth && $iheight) {
2914: if ($owidth == $nwidth || (!$nwidth && !$nheight)) {
2915: $token->[2]{'width'} = $iwidth;$ctag=1;
2916: }
2917: if ($oheight == $nheight || (!$nwidth && !$nheight)) {
2918: $token->[2]{'height'}=$iheight;$ctag=1;
1.186 albertel 2919: }
2920: }
2921: }
1.210 albertel 2922: my ($cwidth,$cheight)=($token->[2]{'width'},$token->[2]{'height'});
2923: # if we don't have a width or height
2924: if ($iwidth && $cwidth && !$cheight) {
2925: $token->[2]{'height'}=int(($cwidth/$iwidth)*$iheight);$ctag=1;
2926: }
2927: if ($iheight && $cheight && !$cwidth) {
2928: $token->[2]{'width'}=int(($cheight/$iheight)*$iwidth);$ctag=1;
2929: }
2930: if ($ctag) {$currentstring=&Apache::edit::rebuild_tag($token);}
1.122 albertel 2931: }
1.261 foxr 2932:
1.122 albertel 2933: return $currentstring;
2934: }
2935:
2936: sub end_img {
2937: my ($target,$token) = @_;
2938: my $currentstring = '';
2939: if ($target eq 'web') {
2940: $currentstring = $token->[2];
2941: } elsif ($target eq 'tex') {
2942: $currentstring = '';
2943: }
2944: return $currentstring;
2945: }
2946:
1.181 sakharuk 2947: #-- <applet> tag (end tag required)
1.122 albertel 2948: sub start_applet {
2949: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2950:
2951: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,undef,1);
1.290 albertel 2952: &Apache::lonxml::extlink($code);
1.122 albertel 2953: my $archive=&Apache::lonxml::get_param('archive',$parstack,$safeeval,
2954: undef,1);
1.290 albertel 2955: &Apache::lonxml::extlink($archive);
1.122 albertel 2956: my $currentstring = '';
2957: if ($target eq 'web') {
1.267 albertel 2958: if ($env{'browser.appletsuppress'} ne 'on') {
1.250 albertel 2959: $currentstring = &Apache::lonenc::encrypt_ref($token,
2960: {'code'=>$code,
2961: 'archive'=>$archive}
2962: );
1.122 albertel 2963: } else {
2964: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
2965: $safeeval,undef,1);
2966: unless ($alttag) {
2967: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2968: $code);
1.44 sakharuk 2969: }
1.122 albertel 2970: $currentstring='[APPLET: '.$alttag.']';
1.1 sakharuk 2971: }
1.122 albertel 2972: } elsif ($target eq 'tex') {
1.177 albertel 2973: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
2974: $safeeval,undef,1);
2975: unless ($alttag) {
2976: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,
2977: undef,1);
2978: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2979: $code);
1.175 sakharuk 2980: }
1.177 albertel 2981: $currentstring.='\begin{center} \fbox{Java Applet: '.$alttag.
2982: '.}\end{center}';
1.122 albertel 2983: }
2984: return $currentstring;
2985: }
2986:
2987: sub end_applet {
2988: my ($target,$token) = @_;
2989: my $currentstring = '';
2990: if ($target eq 'web') {
2991: $currentstring = $token->[2];
2992: } elsif ($target eq 'tex') {
2993: }
2994: return $currentstring;
2995: }
2996:
1.181 sakharuk 2997: #-- <embed> tag (end tag optional/required)
1.122 albertel 2998: sub start_embed {
2999: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3000: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
1.290 albertel 3001: &Apache::lonxml::extlink($src);
1.122 albertel 3002: my $currentstring = '';
3003: if ($target eq 'web') {
1.267 albertel 3004: if ($env{'browser.embedsuppress'} ne 'on') {
1.250 albertel 3005: $currentstring=&Apache::lonenc::encrypt_ref($token,{'src'=>$src});
1.122 albertel 3006: } else {
3007: my $alttag=&Apache::lonxml::get_param
3008: ('alt',$parstack,$safeeval,undef,1);
3009: unless ($alttag) {
3010: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
1.42 albertel 3011: }
1.122 albertel 3012: $currentstring='[EMBED: '.$alttag.']';
1.10 www 3013: }
1.122 albertel 3014: } elsif ($target eq 'tex') {
3015: }
3016: return $currentstring;
3017: }
3018:
3019: sub end_embed {
3020: my ($target,$token) = @_;
3021: my $currentstring = '';
3022: if ($target eq 'web') {
3023: $currentstring = $token->[2];
1.175 sakharuk 3024: } elsif ($target eq 'tex') {
1.122 albertel 3025: }
3026: return $currentstring;
3027: }
3028:
1.181 sakharuk 3029: #-- <param> tag (end tag forbidden)
1.122 albertel 3030: sub start_param {
3031: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.290 albertel 3032: if (&Apache::lonxml::get_param('name',$parstack,
3033: $safeeval,undef,1)=~/^cabbase$/i) {
3034: my $value=&Apache::lonxml::get_param('value',$parstack,
3035: $safeeval,undef,1);
3036: &Apache::lonxml::extlink($value);
3037: }
3038:
3039: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
3040: &Apache::lonxml::extlink($src);
1.122 albertel 3041: my $currentstring = '';
3042: if ($target eq 'web') {
1.250 albertel 3043: my %toconvert;
3044: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
3045: if ($src) { $toconvert{'src'}= $src; }
3046: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval,
3047: undef,1);
1.251 albertel 3048: if ($name=~/^cabbase$/i) {
3049: $toconvert{'value'}=&Apache::lonxml::get_param('value',$parstack,
3050: $safeeval,undef,1);
3051: }
1.250 albertel 3052: $currentstring = &Apache::lonenc::encrypt_ref($token,\%toconvert);
1.122 albertel 3053: } elsif ($target eq 'tex') {
3054: }
3055: return $currentstring;
3056: }
3057:
3058: sub end_param {
3059: my ($target,$token) = @_;
3060: my $currentstring = '';
3061: if ($target eq 'web') {
3062: $currentstring = $token->[2];
3063: } elsif ($target eq 'tex') {
3064: }
3065: return $currentstring;
3066: }
3067:
3068: #-- <allow> tag
3069: sub start_allow {
3070: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3071: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
1.290 albertel 3072: &Apache::lonxml::extlink($src);
3073:
1.241 albertel 3074: if ($target eq 'tex') { &image_replication($src); }
1.122 albertel 3075: my $result;
3076: if ($target eq 'edit') {
3077: $result .=&Apache::edit::tag_start($target,$token);
3078: $result .=&Apache::edit::text_arg('File Spec:','src',$token,70);
3079: $result .=&Apache::edit::end_row();#.&Apache::edit::start_spanning_row();
3080: } elsif ($target eq 'modified') {
3081: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
3082: $safeeval,'src');
3083: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
3084: }
3085: return $result;
3086: }
3087:
3088: sub end_allow {
3089: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3090: if ( $target eq 'edit') { return (&Apache::edit::end_table()); }
3091: return '';
3092: }
1.119 www 3093:
1.181 sakharuk 3094: #-- Frames (end tag required)
3095: #-- <frameset>
1.122 albertel 3096: sub start_frameset {
3097: my ($target,$token) = @_;
1.277 foxr 3098: my $currentstring = ''; # Close any pending para.
1.122 albertel 3099: if ($target eq 'web') {
1.180 albertel 3100: if (!$Apache::lonxml::registered &&
1.267 albertel 3101: $env{'request.state'} eq 'published') {
1.122 albertel 3102: $currentstring.='<head>'.
3103: &Apache::lonmenu::registerurl(undef,$target).'</head>';
1.10 www 3104: }
1.133 www 3105: my $onLoad='';
3106: foreach my $key (keys(%{$token->[2]})) {
3107: if ($key =~ /^onload$/i) {
3108: $onLoad.=$token->[2]->{$key}.';';
3109: delete($token->[2]->{$key});
3110: }
3111: }
3112: $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad;
3113: my $onUnload='';
3114: foreach my $key (keys(%{$token->[2]})) {
3115: if ($key =~ /^onunload$/i) {
3116: $onUnload.=$token->[2]->{$key}.';';
3117: delete($token->[2]->{$key});
3118: }
3119: }
3120: $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().
3121: ';'.$onUnload;
3122:
3123: $currentstring .= '<'.$token->[1];
3124: foreach (keys %{$token->[2]}) {
3125: $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
3126: }
3127: $currentstring.='>';
1.122 albertel 3128: }
3129: return $currentstring;
3130: }
3131:
3132: sub end_frameset {
3133: my ($target,$token) = @_;
3134: my $currentstring = '';
3135: if ($target eq 'web') {
3136: $currentstring = $token->[2];
3137: }
3138: return $currentstring;
3139: }
1.162 sakharuk 3140:
1.181 sakharuk 3141: #-- <xmp> (end tag required)
1.162 sakharuk 3142: sub start_xmp {
3143: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3144: my $currentstring = '';
3145: if ($target eq 'web') {
3146: $currentstring .= $token->[4];
3147: } elsif ($target eq 'tex') {
3148: $currentstring .= '\begin{verbatim}';
3149: }
3150: return $currentstring;
3151: }
3152:
3153: sub end_xmp {
3154: my ($target,$token) = @_;
3155: my $currentstring = '';
3156: if ($target eq 'web') {
3157: $currentstring .= $token->[2];
3158: } elsif ($target eq 'tex') {
3159: $currentstring .= '\end{verbatim}';
3160: }
3161: return $currentstring;
3162: }
3163:
1.181 sakharuk 3164: #-- <pre> (end tag required)
1.122 albertel 3165: sub start_pre {
1.126 sakharuk 3166: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 3167: my $currentstring = &end_p(); # close off pending <p>
1.122 albertel 3168: if ($target eq 'web') {
3169: $currentstring .= $token->[4];
3170: } elsif ($target eq 'tex') {
1.136 sakharuk 3171: $currentstring .= '\begin{verbatim}';
1.122 albertel 3172: }
3173: return $currentstring;
3174: }
3175:
3176: sub end_pre {
3177: my ($target,$token) = @_;
3178: my $currentstring = '';
3179: if ($target eq 'web') {
3180: $currentstring .= $token->[2];
3181: } elsif ($target eq 'tex') {
1.136 sakharuk 3182: $currentstring .= '\end{verbatim}';
1.122 albertel 3183: }
3184: return $currentstring;
3185: }
3186:
3187: #-- <insert>
3188: sub start_insert {
3189: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3190: my $currentstring = '';
3191: if ($target eq 'web') {
3192: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
3193: $currentstring .= '<b>'.$display.'</b>';;
3194: }
3195: return $currentstring;
3196: }
3197:
3198: sub end_insert {
3199: my ($target,$token) = @_;
3200: my $currentstring = '';
3201: if ($target eq 'web') {
3202: $currentstring .= '';
3203: }
3204: return $currentstring;
3205: }
3206:
3207: #-- <externallink>
3208: sub start_externallink {
3209: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3210: my $currentstring = '';
3211: if ($target eq 'web') {
3212: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
3213: $currentstring .= '<b>'.$display.'</b>';;
3214: }
3215: return $currentstring;
3216: }
3217:
3218: sub end_externallink {
3219: my ($target,$token) = @_;
3220: my $currentstring = '';
3221: if ($target eq 'web') {
3222: $currentstring .= '';
3223: }
3224: return $currentstring;
3225: }
3226:
3227: #-- <blankspace heigth="">
3228: sub start_blankspace {
3229: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 3230: my $currentstring = &end_p(); # closes off any unclosed <p>
1.122 albertel 3231: if ($target eq 'tex') {
3232: my $howmuch = &Apache::lonxml::get_param('heigth',$parstack,$safeeval,undef,1);
3233: $currentstring .= '\vskip '.$howmuch.' ';
3234: }
3235: return $currentstring;
3236: }
3237:
3238: sub end_blankspace {
3239: my ($target,$token) = @_;
3240: my $currentstring = '';
3241: if ($target eq 'tex') {
3242: $currentstring .= '';
3243: }
3244: return $currentstring;
3245: }
3246:
1.181 sakharuk 3247: #-- <abbr> tag (end tag required)
1.122 albertel 3248: sub start_abbr {
3249: my ($target,$token) = @_;
3250: my $currentstring = '';
3251: if ($target eq 'web') {
3252: $currentstring = $token->[4];
3253: }
3254: return $currentstring;
3255: }
3256:
3257: sub end_abbr {
3258: my ($target,$token) = @_;
3259: my $currentstring = '';
3260: if ($target eq 'web') {
3261: $currentstring = $token->[2];
3262: }
3263: return $currentstring;
3264: }
3265:
1.181 sakharuk 3266: #-- <acronym> tag (end tag required)
1.122 albertel 3267: sub start_acronym {
3268: my ($target,$token) = @_;
3269: my $currentstring = '';
3270: if ($target eq 'web') {
3271: $currentstring = $token->[4];
3272: }
3273: return $currentstring;
3274: }
3275:
3276: sub end_acronym {
3277: my ($target,$token) = @_;
3278: my $currentstring = '';
3279: if ($target eq 'web') {
3280: $currentstring = $token->[2];
3281: }
3282: return $currentstring;
3283: }
3284:
1.181 sakharuk 3285: #-- <area> tag (end tag forbidden)
1.122 albertel 3286: sub start_area {
3287: my ($target,$token) = @_;
3288: my $currentstring = '';
3289: if ($target eq 'web') {
3290: $currentstring = $token->[4];
3291: }
3292: return $currentstring;
3293: }
3294:
3295: sub end_area {
3296: my ($target,$token) = @_;
3297: my $currentstring = '';
3298: if ($target eq 'web') {
3299: $currentstring = $token->[2];
3300: }
3301: return $currentstring;
3302: }
3303:
1.181 sakharuk 3304: #-- <base> tag (end tag forbidden)
1.122 albertel 3305: sub start_base {
3306: my ($target,$token) = @_;
3307: my $currentstring = '';
3308: if ($target eq 'web') {
3309: $currentstring = $token->[4];
1.161 sakharuk 3310: }
1.122 albertel 3311: return $currentstring;
3312: }
3313:
3314: sub end_base {
3315: my ($target,$token) = @_;
3316: my $currentstring = '';
3317: if ($target eq 'web') {
3318: $currentstring = $token->[2];
3319: }
3320: return $currentstring;
3321: }
3322:
1.181 sakharuk 3323: #-- <bdo> tag (end tag required)
1.122 albertel 3324: sub start_bdo {
3325: my ($target,$token) = @_;
3326: my $currentstring = '';
3327: if ($target eq 'web') {
3328: $currentstring = $token->[4];
3329: }
3330: return $currentstring;
3331: }
3332:
3333: sub end_bdo {
3334: my ($target,$token) = @_;
3335: my $currentstring = '';
3336: if ($target eq 'web') {
3337: $currentstring = $token->[2];
3338: }
3339: return $currentstring;
3340: }
3341:
1.181 sakharuk 3342: #-- <bgsound> tag (end tag optional)
1.122 albertel 3343: sub start_bgsound {
3344: my ($target,$token) = @_;
3345: my $currentstring = '';
3346: if ($target eq 'web') {
3347: $currentstring = $token->[4];
3348: }
3349: return $currentstring;
3350: }
3351:
3352: sub end_bgsound {
3353: my ($target,$token) = @_;
3354: my $currentstring = '';
3355: if ($target eq 'web') {
3356: $currentstring = $token->[2];
3357: }
3358: return $currentstring;
3359: }
3360:
1.181 sakharuk 3361: #-- <blink> tag (end tag required)
1.122 albertel 3362: sub start_blink {
3363: my ($target,$token) = @_;
3364: my $currentstring = '';
3365: if ($target eq 'web') {
3366: $currentstring = $token->[4];
3367: }
3368: return $currentstring;
3369: }
3370:
3371: sub end_blink {
3372: my ($target,$token) = @_;
3373: my $currentstring = '';
3374: if ($target eq 'web') {
3375: $currentstring = $token->[2];
3376: }
3377: return $currentstring;
3378: }
3379:
1.181 sakharuk 3380: #-- <blockquote> tag (end tag required)
1.122 albertel 3381: sub start_blockquote {
3382: my ($target,$token) = @_;
1.279 foxr 3383: my $currentstring = &end_p(); # Close any unclosed <p>
1.122 albertel 3384: if ($target eq 'web') {
1.277 foxr 3385: $currentstring .= $token->[4];
1.122 albertel 3386: }
3387: return $currentstring;
3388: }
3389:
3390: sub end_blockquote {
3391: my ($target,$token) = @_;
3392: my $currentstring = '';
3393: if ($target eq 'web') {
3394: $currentstring = $token->[2];
3395: }
3396: return $currentstring;
3397: }
3398:
1.181 sakharuk 3399: #-- <button> tag (end tag required)
1.122 albertel 3400: sub start_button {
3401: my ($target,$token) = @_;
3402: my $currentstring = '';
3403: if ($target eq 'web') {
3404: $currentstring = $token->[4];
3405: }
3406: return $currentstring;
3407: }
3408:
3409: sub end_button {
3410: my ($target,$token) = @_;
3411: my $currentstring = '';
3412: if ($target eq 'web') {
3413: $currentstring = $token->[2];
3414: }
3415: return $currentstring;
3416: }
3417:
1.181 sakharuk 3418: #-- <caption> tag (end tag required)
1.122 albertel 3419: sub start_caption {
3420: my ($target,$token) = @_;
3421: my $currentstring = '';
3422: if ($target eq 'web') {
3423: $currentstring = $token->[4];
3424: }
3425: return $currentstring;
3426: }
3427:
3428: sub end_caption {
3429: my ($target,$token) = @_;
3430: my $currentstring = '';
3431: if ($target eq 'web') {
3432: $currentstring = $token->[2];
3433: }
3434: return $currentstring;
3435: }
3436:
1.181 sakharuk 3437: #-- <col> tag (end tag forbdden)
1.122 albertel 3438: sub start_col {
3439: my ($target,$token) = @_;
3440: my $currentstring = '';
3441: if ($target eq 'web') {
3442: $currentstring = $token->[4];
3443: }
3444: return $currentstring;
3445: }
3446:
3447: sub end_col {
3448: my ($target,$token) = @_;
3449: my $currentstring = '';
3450: if ($target eq 'web') {
3451: $currentstring = $token->[2];
3452: }
3453: return $currentstring;
3454: }
3455:
1.181 sakharuk 3456: #-- <colgroup> tag (end tag optional)
1.122 albertel 3457: sub start_colgroup {
3458: my ($target,$token) = @_;
3459: my $currentstring = '';
3460: if ($target eq 'web') {
3461: $currentstring = $token->[4];
3462: }
3463: return $currentstring;
3464: }
3465:
3466: sub end_colgroup {
3467: my ($target,$token) = @_;
3468: my $currentstring = '';
3469: if ($target eq 'web') {
3470: $currentstring = $token->[2];
3471: }
3472: return $currentstring;
3473: }
3474:
1.181 sakharuk 3475: #-- <del> tag (end tag required)
1.122 albertel 3476: sub start_del {
3477: my ($target,$token) = @_;
3478: my $currentstring = '';
3479: if ($target eq 'web') {
3480: $currentstring = $token->[4];
3481: }
3482: return $currentstring;
3483: }
3484:
3485: sub end_del {
3486: my ($target,$token) = @_;
3487: my $currentstring = '';
3488: if ($target eq 'web') {
3489: $currentstring = $token->[2];
3490: }
3491: return $currentstring;
3492: }
3493:
1.181 sakharuk 3494: #-- <fieldset> tag (end tag required)
1.122 albertel 3495: sub start_fieldset {
3496: my ($target,$token) = @_;
3497: my $currentstring = '';
3498: if ($target eq 'web') {
3499: $currentstring = $token->[4];
3500: }
3501: return $currentstring;
3502: }
3503:
3504: sub end_fieldset {
3505: my ($target,$token) = @_;
3506: my $currentstring = '';
3507: if ($target eq 'web') {
3508: $currentstring = $token->[2];
3509: }
3510: return $currentstring;
3511: }
3512:
1.181 sakharuk 3513: #-- <frame> tag (end tag forbidden)
1.122 albertel 3514: sub start_frame {
3515: my ($target,$token) = @_;
3516: my $currentstring = '';
3517: if ($target eq 'web') {
3518: $currentstring = $token->[4];
3519: }
3520: return $currentstring;
3521: }
3522:
3523: sub end_frame {
3524: my ($target,$token) = @_;
3525: my $currentstring = '';
3526: if ($target eq 'web') {
3527: $currentstring = $token->[2];
3528: }
3529: return $currentstring;
3530: }
3531:
1.181 sakharuk 3532: #-- <iframe> tag (end tag required)
1.122 albertel 3533: sub start_iframe {
3534: my ($target,$token) = @_;
3535: my $currentstring = '';
3536: if ($target eq 'web') {
3537: $currentstring = $token->[4];
3538: }
3539: return $currentstring;
3540: }
3541:
3542: sub end_iframe {
3543: my ($target,$token) = @_;
3544: my $currentstring = '';
3545: if ($target eq 'web') {
3546: $currentstring = $token->[2];
3547: }
3548: return $currentstring;
3549: }
3550:
1.181 sakharuk 3551: #-- <ins> tag (end tag required)
1.122 albertel 3552: sub start_ins {
3553: my ($target,$token) = @_;
3554: my $currentstring = '';
3555: if ($target eq 'web') {
3556: $currentstring = $token->[4];
3557: }
3558: return $currentstring;
3559: }
3560:
3561: sub end_ins {
3562: my ($target,$token) = @_;
3563: my $currentstring = '';
3564: if ($target eq 'web') {
3565: $currentstring = $token->[2];
3566: }
3567: return $currentstring;
3568: }
3569:
1.181 sakharuk 3570: #-- <isindex> tag (end tag forbidden)
1.122 albertel 3571: sub start_isindex {
3572: my ($target,$token) = @_;
3573: my $currentstring = '';
3574: if ($target eq 'web') {
3575: $currentstring = $token->[4];
3576: }
3577: return $currentstring;
3578: }
3579:
3580: sub end_isindex {
3581: my ($target,$token) = @_;
3582: my $currentstring = '';
3583: if ($target eq 'web') {
3584: $currentstring = $token->[2];
3585: }
3586: return $currentstring;
3587: }
3588:
1.181 sakharuk 3589: #-- <keygen> tag (end tag forbidden)
1.122 albertel 3590: sub start_keygen {
3591: my ($target,$token) = @_;
3592: my $currentstring = '';
3593: if ($target eq 'web') {
3594: $currentstring = $token->[4];
3595: }
3596: return $currentstring;
3597: }
3598:
3599: sub end_keygen {
3600: my ($target,$token) = @_;
3601: my $currentstring = '';
3602: if ($target eq 'web') {
3603: $currentstring = $token->[2];
3604: }
3605: return $currentstring;
3606: }
3607:
3608: #-- <label> tag
3609: sub start_label {
3610: my ($target,$token) = @_;
3611: my $currentstring = '';
3612: if ($target eq 'web') {
3613: $currentstring = $token->[4];
3614: }
3615: return $currentstring;
3616: }
3617:
3618: sub end_label {
3619: my ($target,$token) = @_;
3620: my $currentstring = '';
3621: if ($target eq 'web') {
3622: $currentstring = $token->[2];
3623: }
3624: return $currentstring;
3625: }
3626:
1.181 sakharuk 3627: #-- <layer> tag (end tag required)
1.122 albertel 3628: sub start_layer {
3629: my ($target,$token) = @_;
3630: my $currentstring = '';
3631: if ($target eq 'web') {
3632: $currentstring = $token->[4];
3633: }
3634: return $currentstring;
3635: }
3636:
3637: sub end_layer {
3638: my ($target,$token) = @_;
3639: my $currentstring = '';
3640: if ($target eq 'web') {
3641: $currentstring = $token->[2];
3642: }
3643: return $currentstring;
3644: }
3645:
1.181 sakharuk 3646: #-- <legend> tag (end tag required)
1.122 albertel 3647: sub start_legend {
3648: my ($target,$token) = @_;
3649: my $currentstring = '';
3650: if ($target eq 'web') {
3651: $currentstring = $token->[4];
3652: }
3653: return $currentstring;
3654: }
3655:
3656: sub end_legend {
3657: my ($target,$token) = @_;
3658: my $currentstring = '';
3659: if ($target eq 'web') {
3660: $currentstring = $token->[2];
3661: }
3662: return $currentstring;
3663: }
3664:
1.181 sakharuk 3665: #-- <link> tag (end tag forbidden)
1.122 albertel 3666: sub start_link {
1.292 albertel 3667: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 3668: my $currentstring = '';
3669: if ($target eq 'web') {
1.291 albertel 3670: my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
3671: undef,1);
3672: &Apache::lonxml::extlink($href);
1.122 albertel 3673: $currentstring = $token->[4];
3674: }
3675: return $currentstring;
3676: }
3677:
3678: sub end_link {
3679: my ($target,$token) = @_;
3680: my $currentstring = '';
3681: if ($target eq 'web') {
3682: $currentstring = $token->[2];
3683: }
3684: return $currentstring;
3685: }
3686:
1.181 sakharuk 3687: #-- <marquee> tag (end tag optional)
1.122 albertel 3688: sub start_marquee {
3689: my ($target,$token) = @_;
3690: my $currentstring = '';
3691: if ($target eq 'web') {
3692: $currentstring = $token->[4];
3693: }
3694: return $currentstring;
3695: }
3696:
3697: sub end_marquee {
3698: my ($target,$token) = @_;
3699: my $currentstring = '';
3700: if ($target eq 'web') {
3701: $currentstring = $token->[2];
3702: }
3703: return $currentstring;
3704: }
3705:
1.179 sakharuk 3706: #-- <multicol> tag (end tag required)
3707: sub start_multicol {
1.122 albertel 3708: my ($target,$token) = @_;
1.279 foxr 3709: my $currentstring = &end_p(); # Close any pending <p>
1.122 albertel 3710: if ($target eq 'web') {
1.277 foxr 3711: $currentstring .= $token->[4];
1.122 albertel 3712: }
3713: return $currentstring;
3714: }
3715:
1.179 sakharuk 3716: sub end_multicol {
1.122 albertel 3717: my ($target,$token) = @_;
3718: my $currentstring = '';
3719: if ($target eq 'web') {
3720: $currentstring = $token->[2];
3721: }
3722: return $currentstring;
3723: }
3724:
1.179 sakharuk 3725: #-- <nobr> tag (end tag required)
1.122 albertel 3726: sub start_nobr {
3727: my ($target,$token) = @_;
3728: my $currentstring = '';
3729: if ($target eq 'web') {
3730: $currentstring = $token->[4];
1.179 sakharuk 3731: } elsif ($target eq 'tex') {
3732: $currentstring='\mbox{';
3733: }
1.122 albertel 3734: return $currentstring;
3735: }
3736:
3737: sub end_nobr {
3738: my ($target,$token) = @_;
3739: my $currentstring = '';
3740: if ($target eq 'web') {
3741: $currentstring = $token->[2];
1.179 sakharuk 3742: } elsif ($target eq 'tex') {
3743: $currentstring='}';
3744: }
1.122 albertel 3745: return $currentstring;
3746: }
3747:
1.179 sakharuk 3748: #-- <noembed> tag (end tag required)
1.122 albertel 3749: sub start_noembed {
3750: my ($target,$token) = @_;
3751: my $currentstring = '';
3752: if ($target eq 'web') {
3753: $currentstring = $token->[4];
3754: }
3755: return $currentstring;
3756: }
3757:
3758: sub end_noembed {
3759: my ($target,$token) = @_;
3760: my $currentstring = '';
3761: if ($target eq 'web') {
3762: $currentstring = $token->[2];
3763: }
3764: return $currentstring;
3765: }
3766:
1.179 sakharuk 3767: #-- <noframes> tag (end tag required)
1.122 albertel 3768: sub start_noframes {
3769: my ($target,$token) = @_;
3770: my $currentstring = '';
3771: if ($target eq 'web') {
3772: $currentstring = $token->[4];
3773: }
3774: return $currentstring;
3775: }
3776:
3777: sub end_noframes {
3778: my ($target,$token) = @_;
3779: my $currentstring = '';
3780: if ($target eq 'web') {
3781: $currentstring = $token->[2];
3782: }
3783: return $currentstring;
3784: }
3785:
1.179 sakharuk 3786: #-- <nolayer> tag (end tag required)
1.122 albertel 3787: sub start_nolayer {
3788: my ($target,$token) = @_;
3789: my $currentstring = '';
3790: if ($target eq 'web') {
3791: $currentstring = $token->[4];
3792: }
3793: return $currentstring;
3794: }
3795:
3796: sub end_nolayer {
3797: my ($target,$token) = @_;
3798: my $currentstring = '';
3799: if ($target eq 'web') {
3800: $currentstring = $token->[2];
3801: }
3802: return $currentstring;
3803: }
3804:
1.179 sakharuk 3805: #-- <noscript> tag (end tag required)
1.122 albertel 3806: sub start_noscript {
3807: my ($target,$token) = @_;
3808: my $currentstring = '';
3809: if ($target eq 'web') {
3810: $currentstring = $token->[4];
3811: }
3812: return $currentstring;
3813: }
3814:
3815: sub end_noscript {
3816: my ($target,$token) = @_;
3817: my $currentstring = '';
3818: if ($target eq 'web') {
3819: $currentstring = $token->[2];
3820: }
3821: return $currentstring;
3822: }
3823:
1.179 sakharuk 3824: #-- <object> tag (end tag required)
1.122 albertel 3825: sub start_object {
3826: my ($target,$token) = @_;
3827: my $currentstring = '';
3828: if ($target eq 'web') {
3829: $currentstring = $token->[4];
3830: }
3831: return $currentstring;
3832: }
3833:
3834: sub end_object {
3835: my ($target,$token) = @_;
3836: my $currentstring = '';
3837: if ($target eq 'web') {
3838: $currentstring = $token->[2];
3839: }
3840: return $currentstring;
3841: }
3842:
1.179 sakharuk 3843: #-- <optgroup> tag (end tag required)
1.122 albertel 3844: sub start_optgroup {
3845: my ($target,$token) = @_;
3846: my $currentstring = '';
3847: if ($target eq 'web') {
3848: $currentstring = $token->[4];
3849: }
3850: return $currentstring;
3851: }
3852:
3853: sub end_optgroup {
3854: my ($target,$token) = @_;
3855: my $currentstring = '';
3856: if ($target eq 'web') {
3857: $currentstring = $token->[2];
3858: }
3859: return $currentstring;
3860: }
3861:
1.179 sakharuk 3862: #-- <samp> tag (end tag required)
1.122 albertel 3863: sub start_samp {
3864: my ($target,$token) = @_;
3865: my $currentstring = '';
3866: if ($target eq 'web') {
3867: $currentstring = $token->[4];
1.179 sakharuk 3868: } elsif ($target eq 'tex') {
3869: $currentstring='\texttt{';
3870: }
1.122 albertel 3871: return $currentstring;
3872: }
3873:
3874: sub end_samp {
3875: my ($target,$token) = @_;
3876: my $currentstring = '';
3877: if ($target eq 'web') {
3878: $currentstring = $token->[2];
1.179 sakharuk 3879: } elsif ($target eq 'tex') {
3880: $currentstring='}';
3881: }
1.122 albertel 3882: return $currentstring;
3883: }
3884:
3885: #-- <server> tag
3886: sub start_server {
3887: my ($target,$token) = @_;
3888: my $currentstring = '';
3889: if ($target eq 'web') {
3890: $currentstring = $token->[4];
3891: }
3892: return $currentstring;
3893: }
3894:
3895: sub end_server {
3896: my ($target,$token) = @_;
3897: my $currentstring = '';
3898: if ($target eq 'web') {
3899: $currentstring = $token->[2];
3900: }
3901: return $currentstring;
3902: }
3903:
1.179 sakharuk 3904: #-- <spacer> tag (end tag forbidden)
1.122 albertel 3905: sub start_spacer {
3906: my ($target,$token) = @_;
1.279 foxr 3907: my $currentstring = &end_p(); # Close off any open <p> tag.
1.122 albertel 3908: if ($target eq 'web') {
1.277 foxr 3909: $currentstring .= $token->[4];
1.122 albertel 3910: }
3911: return $currentstring;
3912: }
3913:
3914: sub end_spacer {
3915: my ($target,$token) = @_;
3916: my $currentstring = '';
3917: if ($target eq 'web') {
3918: $currentstring = $token->[2];
3919: }
3920: return $currentstring;
3921: }
3922:
1.179 sakharuk 3923: #-- <span> tag (end tag required)
1.122 albertel 3924: sub start_span {
3925: my ($target,$token) = @_;
3926: my $currentstring = '';
3927: if ($target eq 'web') {
3928: $currentstring = $token->[4];
3929: }
3930: return $currentstring;
3931: }
3932:
3933: sub end_span {
3934: my ($target,$token) = @_;
3935: my $currentstring = '';
3936: if ($target eq 'web') {
3937: $currentstring = $token->[2];
3938: }
3939: return $currentstring;
3940: }
3941:
1.179 sakharuk 3942: #-- <tbody> tag (end tag optional)
1.122 albertel 3943: sub start_tbody {
3944: my ($target,$token) = @_;
3945: my $currentstring = '';
3946: if ($target eq 'web') {
3947: $currentstring = $token->[4];
3948: }
3949: return $currentstring;
3950: }
3951:
3952: sub end_tbody {
3953: my ($target,$token) = @_;
3954: my $currentstring = '';
3955: if ($target eq 'web') {
3956: $currentstring = $token->[2];
3957: }
3958: return $currentstring;
3959: }
3960:
1.166 sakharuk 3961: #-- <tfoot> tag (end tag optional)
1.122 albertel 3962: sub start_tfoot {
3963: my ($target,$token) = @_;
3964: my $currentstring = '';
3965: if ($target eq 'web') {
3966: $currentstring = $token->[4];
3967: }
3968: return $currentstring;
3969: }
3970:
3971: sub end_tfoot {
3972: my ($target,$token) = @_;
3973: my $currentstring = '';
3974: if ($target eq 'web') {
3975: $currentstring = $token->[2];
3976: }
3977: return $currentstring;
3978: }
3979:
1.166 sakharuk 3980: #-- <thead> tag (end tag optional)
1.122 albertel 3981: sub start_thead {
3982: my ($target,$token) = @_;
3983: my $currentstring = '';
3984: if ($target eq 'web') {
3985: $currentstring = $token->[4];
3986: }
3987: return $currentstring;
3988: }
1.10 www 3989:
1.122 albertel 3990: sub end_thead {
3991: my ($target,$token) = @_;
3992: my $currentstring = '';
3993: if ($target eq 'web') {
3994: $currentstring = $token->[2];
3995: }
3996: return $currentstring;
3997: }
1.119 www 3998:
1.122 albertel 3999: #-- <var> tag
4000: sub start_var {
1.44 sakharuk 4001: my ($target,$token) = @_;
4002: my $currentstring = '';
4003: if ($target eq 'web') {
1.122 albertel 4004: $currentstring = $token->[4];
1.163 sakharuk 4005: } elsif ($target eq 'tex') {
4006: $currentstring = '\textit{';
4007: }
1.44 sakharuk 4008: return $currentstring;
4009: }
1.10 www 4010:
1.122 albertel 4011: sub end_var {
4012: my ($target,$token) = @_;
1.44 sakharuk 4013: my $currentstring = '';
4014: if ($target eq 'web') {
1.163 sakharuk 4015: $currentstring = $token->[2];
4016: } elsif ($target eq 'tex') {
4017: $currentstring = '}';
1.44 sakharuk 4018: }
4019: return $currentstring;
4020: }
1.119 www 4021:
1.163 sakharuk 4022: #-- <wbr> tag (end tag forbidden)
1.122 albertel 4023: sub start_wbr {
4024: my ($target,$token) = @_;
4025: my $currentstring = '';
4026: if ($target eq 'web') {
4027: $currentstring = $token->[4];
4028: }
4029: return $currentstring;
1.98 albertel 4030: }
4031:
1.122 albertel 4032: sub end_wbr {
4033: my ($target,$token) = @_;
4034: my $currentstring = '';
4035: if ($target eq 'web') {
4036: $currentstring = $token->[2];
4037: }
4038: return $currentstring;
1.98 albertel 4039: }
1.134 sakharuk 4040:
4041: #-- <hideweboutput> tag
4042: sub start_hideweboutput {
4043: my ($target,$token) = @_;
4044: if ($target eq 'web') {
4045: &Apache::lonxml::startredirection();
4046: }
4047: return '';
4048: }
4049:
4050: sub end_hideweboutput {
4051: my ($target,$token) = @_;
4052: my $currentstring = '';
4053: if ($target eq 'web') {
4054: $currentstring = &Apache::lonxml::endredirection();
4055: }
4056: return '';
4057: }
4058:
1.94 sakharuk 4059:
4060: sub image_replication {
4061: my $src = shift;
1.187 albertel 4062: if (not -e $src) { &Apache::lonnet::repcopy($src); }
4063: #replicates eps or ps
4064: my $epssrc = my $pssrc = $src;
4065: $epssrc =~ s/\.(gif|jpg|jpeg|png)$/.eps/i;
4066: $pssrc =~ s/\.(gif|jpg|jpeg|png)$/.ps/i;
4067: if (not -e $epssrc && not -e $pssrc) {
4068: my $result=&Apache::lonnet::repcopy($epssrc);
1.264 raeburn 4069: if ($result ne 'ok') { &Apache::lonnet::repcopy($pssrc); }
1.94 sakharuk 4070: }
4071: return '';
1.195 sakharuk 4072: }
1.275 foxr 4073: #
4074: # Get correct sizing parameter for an image given
4075: # it's initial ht. and wid. This allows sizing of
4076: # images that are generated on-the-fly (e.g. gnuplot)
4077: # as well as serving as a utility for image_size.
4078: #
4079: # Parameter:
4080: # height_param
4081: # width_param - Initial picture dimensions.
4082: # scaling - A scale factor.
4083: # parstack, - the current stack of tag attributes
4084: # from the xml parser
4085: # safeeval, - pointer to the safespace
4086: # depth, - from what level in the stack to look for attributes
4087: # (assumes -1 if unspecified)
4088: # cis - look for attrubutes case insensitively
4089: # (assumes false)
4090: #
4091: # Returns:
4092: # height, width - new dimensions.
4093: #
4094: sub resize_image {
4095: my ($height_param, $width_param, $scaling,
4096: $parstack, $safeeval, $depth, $cis) = @_;
4097:
4098: # First apply the scaling...
1.271 foxr 4099:
1.275 foxr 4100: $height_param = $height_param * $scaling;
4101: $width_param = $width_param * $scaling;
1.261 foxr 4102:
1.197 sakharuk 4103: #do we have any specified LaTeX size of the picture?
1.261 foxr 4104: my $toget='TeXwidth';
4105: if ($cis) {
4106: $toget=lc($toget);
4107: }
1.256 albertel 4108: my $TeXwidth = &Apache::lonxml::get_param($toget,$parstack,
4109: $safeeval,$depth,$cis);
4110: $toget='TeXheight'; if ($cis) { $toget=lc($toget); }
4111: my $TeXheight = &Apache::lonxml::get_param($toget,$parstack,
4112: $safeeval,$depth,$cis);
1.197 sakharuk 4113: #do we have any specified web size of the picture?
4114: my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval,
1.256 albertel 4115: $depth,1);
4116: if ($TeXwidth) {
1.252 matthew 4117: my $old_width_param=$width_param;
1.197 sakharuk 4118: if ($TeXwidth=~/(\d+)\s*\%/) {
1.267 albertel 4119: $width_param = $1*$env{'form.textwidth'}/100;
1.197 sakharuk 4120: } else {
4121: $width_param = $TeXwidth;
4122: }
1.266 albertel 4123: if ($TeXheight) {
4124: $height_param = $TeXheight;
4125: } elsif ($old_width_param) {
4126: $height_param=$TeXwidth/$old_width_param*$height_param;
4127: }
1.256 albertel 4128: } elsif ($TeXheight) {
1.248 foxr 4129: $height_param = $TeXheight;
1.266 albertel 4130: if ($height_param) {
4131: $width_param = $TeXheight/$height_param*$width_param;
4132: }
1.256 albertel 4133: } elsif ($width) {
1.252 matthew 4134: my $old_width_param=$width_param;
1.256 albertel 4135: $width_param = $width*$scaling;
1.266 albertel 4136: if ($old_width_param) {
4137: $height_param=$width_param/$old_width_param*$height_param;
4138: }
1.252 matthew 4139: }
1.267 albertel 4140: if ($width_param > $env{'form.textwidth'}) {
1.252 matthew 4141: my $old_width_param=$width_param;
1.267 albertel 4142: $width_param =0.95*$env{'form.textwidth'};
1.266 albertel 4143: if ($old_width_param) {
4144: $height_param=$width_param/$old_width_param*$height_param;
4145: }
1.197 sakharuk 4146: }
1.275 foxr 4147:
4148: return ($height_param, $width_param);
4149: }
4150:
4151: sub image_size {
4152: my ($src,$scaling,$parstack,$safeeval,$depth,$cis)=@_;
4153:
4154: #size of image from gif/jpg/jpeg/png
4155: my $ressrc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
4156: if (-e $ressrc) {
4157: $src = $ressrc;
4158: }
4159: my $image = Image::Magick->new;
4160: my $current_figure = $image->Read($src);
4161: my $width_param = $image->Get('width');
4162: my $height_param = $image->Get('height');
4163: &Apache::lonxml::debug("Image magick says: $src : Height = $height_param width = $width_param");
4164: undef($image);
4165:
4166: ($height_param, $width_param) = &resize_image($height_param, $width_param,
4167: $scaling, $parstack, $safeeval,
4168: $depth, $cis);
4169:
1.248 foxr 4170: return ($height_param, $width_param);
4171: }
4172:
4173: sub image_width {
4174: my ($height, $width) = &image_size(@_);
4175: return $width;
4176: }
4177: # Not yet 100% sure this is correct in all circumstances..
4178: # due to my uncertainty about mods to image_size.
4179: #
4180: sub image_height {
4181: my ($height, $width) = &image_size(@_);
4182: return $height;
1.197 sakharuk 4183: }
4184:
1.256 albertel 4185: sub get_eps_image {
4186: my ($src)=@_;
1.261 foxr 4187: my $orig_src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1], $src);
1.285 foxr 4188:
4189: # In order to prevent the substitution of the alt text, we need to
4190: # be sure the orig_src file is on system now so:
4191:
4192: if (! -e $orig_src) {
4193: &Apache::lonnet::repcopy($orig_src); # Failure is not completely fatal.
4194: }
1.275 foxr 4195: &Apache::lonxml::debug("get_eps_image: Original image: $orig_src");
1.282 foxr 4196: my ($spath, $sname, $sext) = fileparse($src, qr/\.(gif|png|jpg|jpeg)/i);
1.256 albertel 4197: $src=~s/\.(gif|png|jpg|jpeg)$/\.eps/i;
4198: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.275 foxr 4199: &Apache::lonxml::debug("Filelocation gives: $src");
1.256 albertel 4200: if (! -e $src) {
1.261 foxr 4201: &Apache::lonxml::debug("$src does not exist");
1.264 raeburn 4202: if (&Apache::lonnet::repcopy($src) ne 'ok' ) {
1.261 foxr 4203: &Apache::lonxml::debug("Repcopy of $src failed (1)");
1.256 albertel 4204: #if replication failed try to find ps file
4205: $src=~s/\.eps$/\.ps/;
1.261 foxr 4206: &Apache::lonxml::debug("Now looking for $src");
1.270 foxr 4207: #if no ps file try to replicate it.
4208: my $didrepcopy = &Apache::lonnet::repcopy($src);
4209: &Apache::lonxml::debug("repcopy of $src ... $didrepcopy");
4210: if ( (not -e $src) ||
4211: ($didrepcopy ne 'ok')) {
1.261 foxr 4212: &Apache::lonxml::debug("Failed to find or replicate $src");
4213:
1.256 albertel 4214: #if replication failed try to produce eps file dynamically
4215: $src=~s/\.ps$/\.eps/;
4216: my $temp_file;
1.267 albertel 4217: open(FILE,">>/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat");
1.256 albertel 4218: my $newsrc=$orig_src;
4219: $newsrc =~ s|(.*)/res/|/home/httpd/html/res/|;
1.275 foxr 4220: &Apache::lonxml::debug("queueing $newsrc for dynamic eps production.");
1.256 albertel 4221: print FILE "$newsrc\n";
1.261 foxr 4222: close FILE;
1.256 albertel 4223: $src=~s|/home/httpd/html/res|/home/httpd/prtspool|;
4224: $src=~s|/home/([^/]*)/public_html/|/home/httpd/prtspool/$1/|;
1.283 albertel 4225: if ($sext ne "") { # Put the ext. back in to uniquify.
4226: $src =~ s/\.eps$/$sext.eps/;
4227: }
1.256 albertel 4228: }
4229: }
4230: }
4231: my ($path,$file)=($src=~m|(.*)/([^/]*)$|);
1.261 foxr 4232: &Apache::lonxml::debug("get_eps_image returning: $path / $file<BR />");
1.256 albertel 4233: return ($path.'/',$file);
4234: }
4235:
1.195 sakharuk 4236: sub eps_generation {
4237: my ($src,$file,$width_param) = @_;
1.267 albertel 4238: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat";
1.195 sakharuk 4239: my $temp_file = Apache::File->new('>>'.$filename);
4240: print $temp_file "$src\n";
4241: my $newsrc = $src;
4242: $newsrc =~ s/(\.gif|\.jpg|\.jpeg)$/\.eps/i;
4243: $newsrc=~s/\/home\/httpd\/html\/res//;
4244: $newsrc=~s/\/home\/([^\/]*)\/public_html\//\/$1\//;
4245: $newsrc=~s/\/\.\//\//;
4246: $newsrc=~s/\/([^\/]+)\.(ps|eps)/\//;
1.213 sakharuk 4247: if ($newsrc=~/\/home\/httpd\/lonUsers\//) {
4248: $newsrc=~s/\/home\/httpd\/lonUsers//;
4249: $newsrc=~s/\/([^\/]+)\/(\w)\/(\w)\/(\w)\//\/$1\//;
4250: }
1.239 sakharuk 4251: if ($newsrc=~/\/userfiles\//) {
4252: return ' \graphicspath{{'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4253: } else {
4254: return ' \graphicspath{{/home/httpd/prtspool'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4255: }
1.197 sakharuk 4256: }
4257:
4258: sub file_path {
4259: my $src=shift;
4260: my ($file,$path);
4261: if ($src =~ m!(.*)/([^/]*)$!) {
4262: $file = $2;
4263: $path = $1.'/';
4264: }
4265: return $file,$path;
1.126 sakharuk 4266: }
1.294 foxr 4267: # Converts a measurement in to mm from any of
4268: # the other valid LaTeX units of measure.
4269: # If the units of measure are missing from the
4270: # parameter, it is assumed to be in and returned
4271: # with mm units of measure
1.126 sakharuk 4272: sub recalc {
4273: my $argument = shift;
4274: if (not $argument=~/(mm|cm|in|pc|pt)/) {return $argument.' mm';}
1.132 sakharuk 4275: $argument=~/\s*(\d+\.?\d*)\s*(mm|cm|in|pc|pt)/;
1.126 sakharuk 4276: my $value=$1;
4277: my $units=$2;
4278: if ($units eq 'cm') {
4279: $value*=10;
4280: } elsif ($units eq 'in') {
4281: $value*=25.4;
4282: } elsif ($units eq 'pc') {
4283: $value*=(25.4*12/72.27);
4284: } elsif ($units eq 'pt') {
4285: $value*=(25.4/72.27);
4286: }
4287: return $value.' mm';
1.94 sakharuk 4288: }
1.184 sakharuk 4289:
4290: sub LATEX_length {
4291: my $garbage=shift;
1.206 sakharuk 4292: $garbage=~s/^\s+$//;
4293: $garbage=~s/^\s+(\S.*)/$1/;#space before
4294: $garbage=~s/(.*\S)\s+$/$1/;#space after
4295: $garbage=~s/(\s)+/$1/;#only one space
4296: $garbage=~s/(\\begin{([^\}]+)}|\\end{([^\}]+)})//g;#remove LaTeX \begin{...} and \end{...}
4297: $garbage=~s/(\$\_\{|\$\_|\$\^{|\$\^|\}\$)//g;#remove $_{,$_,$^{,$^,}$
4298: $garbage=~s/([^\\])\$/$1/g;#$
4299: $garbage=~s/(\\ensuremath\{\_\{|\\ensuremath\{\_|\\ensuremath\{\^{|\\ensuremath\{\^|\})//g;#remove \ensuremath{...}
4300: $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 4301: $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;
4302: $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;
4303: $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 4304: $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;
4305: $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;
4306: $garbage=~s/(\\hat{([^}]+)}|\\check{([^}]+)}|\\dot{([^}]+)}|\\breve{([^}]+)}|\\acute{([^}]+)}|\\ddot{([^}]+)}|\\grave{([^}]+)}|\\tilde{([^}]+)}|\\mathring{([^}]+)}|\\bar{([^}]+)}|\\vec{([^}]+)})/$1/g;
4307: #remove some other LaTeX command
4308: $garbage=~s|\\(\w+)\\|\\|g;
4309: $garbage=~s|\\(\w+)(\s*)|$2|g;
4310: $garbage=~s|\+|11|g;
1.184 sakharuk 4311: my $value=length($garbage);
4312: return $value;
4313: }
4314:
4315:
1.287 foxr 4316: # is_inside_of $tagstack $tag
4317: # This sub returns true if the current state of Xml processing
4318: # is inside of the tag.
4319: # Parameters:
4320: # tagstack - The tagstack from the parser.
4321: # tag - The tag (without the <>'s.).
4322: # Sample usage:
4323: # if (is_inside_of($tagstack "table")) {
4324: # # I'm in a table....
4325: # }
4326: sub is_inside_of {
4327: my ($tagstack, $tag) = @_;
4328: my @stack = @$tagstack;
4329: for (my $i = ($#stack - 1); $i >= 0; $i--) {
4330: if ($stack[$i] eq $tag) {
4331: return 1;
4332: }
4333: }
4334: return 0;
4335: }
1.184 sakharuk 4336:
1.94 sakharuk 4337:
1.1 sakharuk 4338: 1;
4339: __END__
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