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