Annotation of loncom/xml/londefdef.pm, revision 1.296
1.1 sakharuk 1: # The LearningOnline Network with CAPA
2: # Tags Default Definition Module
3: #
1.296 ! albertel 4: # $Id: londefdef.pm,v 1.295 2005/11/27 23:57:15 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;
1.296 ! albertel 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: #
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: }
73: }
1.287 foxr 74:
1.188 albertel 75: sub initialize_londefdef {
76: $Apache::londefdef::TD_redirection=0;
77: @Apache::londefdef::table = ();
78: $Apache::londefdef::select=0;
1.243 albertel 79: undef(@Apache::londefdef::description);
80: @Apache::londefdef::DD=(0);
81: @Apache::londefdef::DT=(0);
1.244 albertel 82: @Apache::londefdef::seenDT=(0);
1.238 albertel 83: $Apache::londefdef::list_index=0;
1.3 sakharuk 84: }
1.1 sakharuk 85:
1.35 sakharuk 86: #======================= TAG SUBROUTINES =====================
1.8 sakharuk 87: #-- <output>
1.21 albertel 88: sub start_output {
1.122 albertel 89: my ($target) = @_;
90: if ($target eq 'meta') { $Apache::lonxml::metamode--; }
91: return '';
1.21 albertel 92: }
93: sub end_output {
1.122 albertel 94: my ($target) = @_;
95: if ($target eq 'meta') { $Apache::lonxml::metamode++; }
96: return '';
1.21 albertel 97: }
1.4 sakharuk 98: #-- <m> tag
1.33 albertel 99: sub start_m {
1.190 albertel 100: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 101: my $currentstring = '';
1.193 albertel 102: my $inside = &Apache::lonxml::get_all_text_unbalanced("/m",$parser);
1.191 albertel 103: if ($target eq 'web' || $target eq 'analyze') {
1.122 albertel 104: &Apache::lonxml::debug("M is starting with:$inside:");
105: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
106: if ($eval eq 'on') {
107: $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
108: #&Apache::lonxml::debug("M is evaulated to:$inside:");
109: }
1.276 albertel 110: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
111: $currentstring = &Apache::lontexconvert::converted(\$inside,$display);
1.122 albertel 112: if ($Apache::lontexconvert::errorstring) {
113: &Apache::lonxml::warning("tth error: ".
114: $Apache::lontexconvert::errorstring);
115: $Apache::lontexconvert::errorstring='';
116: }
117: #&Apache::lonxml::debug("M is ends with:$currentstring:");
1.178 albertel 118: $Apache::lonxml::post_evaluate=0;
1.122 albertel 119: } elsif ($target eq 'tex') {
1.190 albertel 120: $currentstring = $inside;
1.178 albertel 121: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
122: if ($eval eq 'on') {
123: $currentstring=&Apache::run::evaluate($currentstring,$safeeval,$$parstack[-1]);
124: }
1.122 albertel 125: if ($currentstring=~/^(\s*\\\\\s*)*$/) {$currentstring = ' \vskip 0 mm ';}
1.257 albertel 126: # detect simple math mode entry exits, and convert them
127: # to use \ensuremath
128: if ($currentstring=~/^\s*\$[^\$].*[^\$]\$\s*$/) {
1.293 albertel 129: $currentstring=~s/^(\s*)\$/$1/;
130: $currentstring=~s/\$(\s*)$/$1/;
1.257 albertel 131: $currentstring='\ensuremath{'.$currentstring.'}';
132: }
1.178 albertel 133: $Apache::lonxml::post_evaluate=0;
1.122 albertel 134: }
135: return $currentstring;
1.33 albertel 136: }
1.122 albertel 137:
1.33 albertel 138: sub end_m {
1.122 albertel 139: my ($target,$token) = @_;
140: my $currentstring = '';
1.204 albertel 141: if ($target eq 'tex') {
1.122 albertel 142: $currentstring = "";
143: }
144: return $currentstring;
1.33 albertel 145: }
1.110 albertel 146:
147: sub start_tthoption {
1.122 albertel 148: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
149: my $result;
150: if ($target eq 'web') {
151: my $inside = &Apache::lonxml::get_all_text("/tthoption",$parser);
152: $inside=~s/^\s*//;
1.267 albertel 153: if ($env{'browser.mathml'}) {
1.122 albertel 154: &tth::ttmoptions($inside);
155: } else {
156: &tth::tthoptions($inside);
157: }
158: }
159: return $result;
1.110 albertel 160: }
161:
162: sub end_tthoption {
1.122 albertel 163: my ($target,$token) = @_;
164: my $result;
165: return $result;
1.110 albertel 166: }
167:
1.181 sakharuk 168: #-- <html> tag (end tag optional)
1.100 albertel 169: sub start_html {
170: my ($target,$token) = @_;
171: my $currentstring = '';
1.267 albertel 172: my $options=$env{'course.'.$env{'request.course.id'}.'.tthoptions'};
1.196 albertel 173: &Apache::lontexconvert::init_tth();
1.269 albertel 174: if ($target eq 'web' || $target eq 'edit' || $target eq 'webgrade' ) {
1.242 albertel 175: $currentstring = &Apache::lonxml::xmlbegin();
1.100 albertel 176: } elsif ($target eq 'tex') {
1.246 albertel 177: $currentstring .= '\documentclass[letterpaper]{article}';
1.267 albertel 178: if (($env{'form.latex_type'}=~'batchmode') ||
179: (!$env{'request.role.adv'})) {$currentstring .='\batchmode';}
1.217 sakharuk 180: $currentstring .= '\newcommand{\keephidden}[1]{}'.
181: '\renewcommand{\deg}{$^{\circ}$}'.
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 $currentstring;
384: }
385:
1.181 sakharuk 386: #-- <meta> tag (end tag forbidden)
1.122 albertel 387: sub start_meta {
388: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
389: my $currentstring = '';
390: if ($target eq 'web') {
391: my $args='';
392: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
393: if ($args eq '') {
394: &Apache::lonxml::get_all_text("/meta",$parser);
395: } else {
396: $currentstring = $token->[4];
1.1 sakharuk 397: }
1.135 sakharuk 398: } elsif ($target eq 'meta') {
1.122 albertel 399: unless (&Apache::lonxml::get_param
400: ('http-equiv',$parstack,$safeeval,undef,1)) {
401: my $name=$token->[2]->{'name'};
402: $name=~tr/A-Z/a-z/;
403: $name=~s/\s/\_/gs;
404: $name=~s/\W//gs;
405: if ($name) {
1.154 www 406: $currentstring='<'.$name;
407: my $display=&Apache::lonxml::get_param
408: ('display',$parstack,$safeeval,undef,1);
409: if ($display) {
410: $display=~s/\"/\'/g;
411: $currentstring.=' display="'.$display.'"';
412: }
413: $currentstring.='>'.
1.122 albertel 414: &Apache::lonxml::get_param
415: ('content',$parstack,$safeeval,undef,1).
1.135 sakharuk 416: '</'.$name.'>';
1.1 sakharuk 417: }
1.154 www 418: my $display=&Apache::lonxml::get_param
419: ('display',$parstack,$safeeval,undef,1);
420: if ($display) {
1.204 albertel 421: $display=&HTML::Entities::encode($display,'<>&"');
1.154 www 422: $currentstring.='<'.$name.'.display>'.$display.
423: '</'.$name.'.display>';
424: }
1.1 sakharuk 425: }
1.135 sakharuk 426: } elsif ($target eq 'tex') {
1.151 sakharuk 427: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
428: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
429: if ((not defined $content) && (not defined $name)) {
430: &Apache::lonxml::startredirection();
431: }
1.122 albertel 432: }
433: return $currentstring;
434: }
435:
436: sub end_meta {
1.165 albertel 437: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 438: my $currentstring = '';
439: if ($target eq 'web') {
440: my $args='';
441: if ( $#$parstack > -1 ) { $args=$$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 $currentstring;
453: }
454:
1.121 www 455: # accessrule
1.122 albertel 456: sub start_accessrule {
457: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
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=$$parstack[$#$parstack]; }
475: if ($args eq '') {
476: &Apache::lonxml::get_all_text("/accessrule",$parser);
477: } else {
478: $currentstring = $token->[4];
479: }
480: }
481: if ($target eq 'meta') {
1.123 www 482: $currentstring='<rule>'.$eff.':'.$realm.':'.$role.'</rule>';
1.122 albertel 483: }
484: return $currentstring;
485: }
486:
487: sub end_accessrule {
488: my ($target,$token,$tagstack,$parstack,$parser) = @_;
489: my $currentstring = '';
490: if ($target eq 'web') {
491: my $args='';
492: if ( $#$parstack > -1 ) { $args=$$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='';
2005: #width of columns from TeXwidth attributes
1.294 foxr 2006:
1.206 sakharuk 2007: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2008: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2009: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]<$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn]) {
2010: $Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]=$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn];
2011: }
2012: }
2013: }
2014: #free space and number of empty columns
2015: my ($available_space,$empty_columns)=($Apache::londefdef::table[-1]{'width'},0);
1.228 sakharuk 2016: if ($#Apache::londefdef::table ne 0) {$available_space=0.9*$available_space;}
1.206 sakharuk 2017: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2018: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]==0) {
2019: $empty_columns++;
2020: } else {
2021: $available_space=$available_space-$Apache::londefdef::table[-1]{'TeXlen'}[0][$jn];
2022: }
2023: }
2024: #boundaries for contents columns
2025: my @min_len=();#columns can not be narrower
2026: my @max_len=();#maximum length of column
2027: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2028: my ($localmin,$localmax)=(0,0);
2029: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2030: if ($localmin<$Apache::londefdef::table[-1]{'minlen'}[$in][$jn]) {
2031: $localmin=$Apache::londefdef::table[-1]{'minlen'}[$in][$jn];
2032: }
2033: if ($localmax<$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn]) {
2034: $localmax=$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn];
2035: }
2036: }
2037: push @min_len, $localmin;
2038: push @max_len, $localmax;
1.122 albertel 2039: }
1.206 sakharuk 2040: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2041: my $localmin=0,;
2042: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2043: if ($localmin<$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn]) {
2044: $localmin=$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn];
2045: }
2046: }
1.229 sakharuk 2047: if ($max_len[$jn]<$localmin) {
2048: $max_len[$jn]=$localmin;
2049: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
2050: }#object size is bigger
2051: if ($min_len[$jn]<$localmin) {
2052: $min_len[$jn]=$localmin;
2053: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
2054: }#object size is bigger
1.206 sakharuk 2055: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]!=0) {
2056: $min_len[$jn]=0;
2057: $max_len[$jn]=0;
2058: }
2059: }
2060: #final adjustment of column width
2061: my @fwidth=@{$Apache::londefdef::table[-1]{'TeXlen'}[0]};#final width array
2062: my @adjust=();
2063: #step 1. adjustment by maximum value
2064: my $space_neeeded=0;
2065: for (my $jn=0;$jn<=$#max_len;$jn++) {
2066: $space_neeeded=$space_neeeded+$max_len[$jn];
2067: }
2068: if ($space_neeeded<=$available_space) {
2069: for (my $jn=0;$jn<=$#max_len;$jn++) {
2070: if ($fwidth[$jn]==0) {
2071: $fwidth[$jn]=$max_len[$jn];
1.53 sakharuk 2072: }
1.51 sakharuk 2073: }
1.206 sakharuk 2074: } else {
2075: #step 2. adjustment by minimum value (estimation)
2076: $space_neeeded=0;
2077: for (my $jn=0;$jn<=$#min_len;$jn++) {
2078: $space_neeeded+=$min_len[$jn];
2079: }
2080: if ($space_neeeded>$available_space) {
2081: $WARNING=' \textbf{NOT ENOUGH SPACE FOR TABLE} ';
2082: for (my $jn=0;$jn<=$#max_len;$jn++) {
2083: if ($fwidth[$jn]==0) {
2084: $fwidth[$jn]=$min_len[$jn];
2085: }
2086: }
1.229 sakharuk 2087: #check if we have objects which can be scaled
2088: my $how_many_to_scale=0;
2089: my @to_scale=();
2090: for (my $jn=0;$jn<=$#max_len;$jn++) {
2091: if ($Apache::londefdef::table[-1]{'objectsignal'}[$jn] eq '1') {
2092: $how_many_to_scale++;
2093: push @to_scale, $jn;
2094: }
2095: }
2096: if ($how_many_to_scale>0) {
2097: my $space_to_adjust=($space_neeeded-$available_space)/$how_many_to_scale;
2098: foreach my $jn (@to_scale) {
2099: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2100: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/;
2101: if ($1 ne '') {
2102: my $current_length=&recalc($1);
2103: $current_length=~/(\d+\.?\d*)/;
2104: $current_length=$current_length-$space_to_adjust;
2105: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/width=$current_length mm/;
2106: }
2107: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/\[(\d+\.?\d*)\s*mm\]/;
2108: if ($1 ne '') {
2109: my $current_length=$1;
2110: $current_length=$current_length-$space_to_adjust;
2111: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/\[(\d+\.?\d*)\s*mm\]/\[$current_length mm\]/;
2112: }
2113: }
2114: $fwidth[$jn]=$fwidth[$jn]-$space_to_adjust;
2115: }
2116: }
1.206 sakharuk 2117: } else {
2118: #step 3. adjustment over minimal + corrections
2119: my $enlarge_coef=$available_space/$space_neeeded;
2120: my $acsessive=0;
2121: for (my $jn=0;$jn<=$#min_len;$jn++) {
2122: $adjust[$jn]=$min_len[$jn]*$enlarge_coef;
2123: if ($adjust[$jn]>$max_len[$jn]) {
2124: $fwidth[$jn]=$max_len[$jn];
2125: $acsessive=$acsessive+$adjust[$jn]-$max_len[$jn];
2126: $adjust[$jn]=0;
2127: }
2128: }
2129: if ($acsessive>0) {
2130: #we have an excess of space and can redistribute it
2131: my $notempty_columns=0;
2132: for (my $jn=0;$jn<=$#min_len;$jn++) {
2133: if ($adjust[$jn]!=0) {
2134: $notempty_columns++;
2135: }
2136: }
2137: my $per_column=$acsessive/$notempty_columns;
2138: for (my $jn=0;$jn<=$#min_len;$jn++) {
2139: if ($adjust[$jn]!=0) {
2140: $adjust[$jn]+=$per_column;
2141: $fwidth[$jn]=$adjust[$jn];
2142: }
1.223 sakharuk 2143: }
2144: } else {
2145: for (my $jn=0;$jn<=$#min_len;$jn++) {
2146: $fwidth[$jn]=$adjust[$jn];
1.206 sakharuk 2147: }
2148: }
1.203 sakharuk 2149: }
2150: }
1.222 sakharuk 2151: #use all available width if it is defined in % or as TeXwidth
2152: if (($Apache::londefdef::table[-1]{'percent'}==1) || ($Apache::londefdef::table[-1]{'forcetablewidth'}==1)) {
1.203 sakharuk 2153: my $current=0;
1.206 sakharuk 2154: for (my $i=0;$i<=$#fwidth;$i++) {
2155: $current+=$fwidth[$i];
1.203 sakharuk 2156: }
2157: my $coef=$Apache::londefdef::table[-1]{'width'}/$current;
1.206 sakharuk 2158: for (my $i=0;$i<=$#fwidth;$i++) {
2159: $fwidth[$i]*=$coef;
2160: }
2161: }
2162: #removing of empty columns if allowed
1.208 sakharuk 2163: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
1.206 sakharuk 2164: if ($permission eq 'yes') {
2165: my @cleaned_table=();
2166: my @cleaned_header=();
2167: my $colind=0;
2168: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2169: if ($fwidth[$jn]!=0) {
2170: #we need to copy column
2171: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2172: $cleaned_table[$in][$colind]=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
2173: $cleaned_header[$colind]=$fwidth[$jn];
2174: }
2175: $colind++;
2176: }
1.122 albertel 2177: }
1.206 sakharuk 2178: $Apache::londefdef::table[-1]{'content'}=\@cleaned_table;
2179: @fwidth=@cleaned_header;
1.122 albertel 2180: }
1.206 sakharuk 2181: #construct header of the table
2182: my $header_of_table = '{'.$Apache::londefdef::table[-1]{'vvinc'};
2183: for (my $in=0;$in<=$#fwidth;$in++) {
2184: $header_of_table.='p{'.$fwidth[$in].' mm}'.$Apache::londefdef::table[-1]{'vvinc'};
2185: }
2186: $header_of_table .= '}';
1.126 sakharuk 2187: #fill the table
2188: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1.206 sakharuk 2189: for (my $jn=0;$jn<=$#fwidth;$jn++) {
2190: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
1.294 foxr 2191: # $output.='\vspace*{-6 mm}\begin{center}';
2192: $output.='\begin{center}';
1.206 sakharuk 2193: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
2194: $output.=' \hfill \llap{'
2195: }
2196: $output.=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
2197: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
1.294 foxr 2198: # $output.='\end{center}\vspace*{-6 mm}';
2199: $output.='\end{center}';
1.206 sakharuk 2200: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
2201: $output.='} ';
2202: }
2203: if ($jn!=$#fwidth) {$output.=' '.$Apache::londefdef::table[-1]{'vinc'};}
2204: }
2205: $output.=' \\\\ '.$Apache::londefdef::table[-1]{'hinc'}.' ';
1.122 albertel 2206: }
1.281 foxr 2207: # Note that \newline destroys alignment env's produced by e.g. <div>
2208: # $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut\newline\strut ';
2209: $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut'.'\\\\'."\n".'\strut ';
1.127 sakharuk 2210: if ($#Apache::londefdef::table > 0) {
2211: my $inmemory = $Apache::londefdef::table[-1]{'output'};
1.294 foxr 2212: # Figure out max/and min width by summing us and then
2213: # apply that to the current column of the table we nest in
2214: # if it's larger than the current width or the current width
2215: # is undefined.
2216: #
2217: my $min_nested_width = 0;
2218: my $max_nested_width = 0;
2219: for (my $col = 0; $col <= $Apache::londefdef::table[-1]{'counter_columns'}; $col++) {
2220:
2221: $min_nested_width += $min_len[$col];
2222: $max_nested_width += $max_len[$col];
2223: }
2224: # Fudge in an extra 5 mm for borders etc:
2225:
2226: $min_nested_width += 5;
2227: $max_nested_width += 5;
2228:
2229: my $outer_column = $Apache::londefdef::table[-2]{'counter_columns'};
2230: my $outer_row = $Apache::londefdef::table[-2]{'row_number'};
2231: if ($min_nested_width > $Apache::londefdef::table[-2]{'minlen'}[$outer_row][$outer_column]) {
2232: $Apache::londefdef::table[-2]{'minlen'}[$outer_row][$outer_column] = $min_nested_width;
2233: }
2234: if ($max_nested_width > $Apache::londefdef::table[-2]{'maxlen'}[$outer_row][$outer_column]) {
2235: $Apache::londefdef::table[-2]{'maxlen'}[$outer_row][$outer_column] = $max_nested_width;
2236: }
2237:
1.127 sakharuk 2238: pop @Apache::londefdef::table;
1.129 sakharuk 2239: push @{$Apache::londefdef::table[-1]{'include'}}, $inmemory;
1.127 sakharuk 2240: } else {
2241: $currentstring .= $Apache::londefdef::table[-1]{'output'};
2242: pop @Apache::londefdef::table;
1.143 sakharuk 2243: undef @Apache::londefdef::table;
1.127 sakharuk 2244: }
1.122 albertel 2245: }
2246: return $currentstring;
2247: }
2248:
1.166 sakharuk 2249: #-- <tr> tag (end tag optional)
1.122 albertel 2250: sub start_tr {
2251: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2252: my $currentstring = '';
2253: if ($target eq 'web') {
2254: $currentstring = $token->[4];
2255: } elsif ($target eq 'tex') {
2256: $Apache::londefdef::table[-1]{'row_number'}++;
1.206 sakharuk 2257: my $alignchar=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.122 albertel 2258: if ($alignchar ne '') {
1.206 sakharuk 2259: push @ {$Apache::londefdef::table[-1]{'rows'} },substr($alignchar,0,1);
1.122 albertel 2260: } else {
2261: push @ {$Apache::londefdef::table[-1]{'rows'} }, 'l';
2262: }
2263: push ( @{ $Apache::londefdef::table[-1]{'rowdata'} }, $Apache::londefdef::table[-1]{'hinc'});
2264: $Apache::londefdef::table[-1]{'counter_columns'} = -1;
1.206 sakharuk 2265: push @ {$Apache::londefdef::table[-1]{'TeXlen'}}, [];
2266: push @ {$Apache::londefdef::table[-1]{'objectlen'}}, [];
2267: push @ {$Apache::londefdef::table[-1]{'minlen'}}, [];
2268: push @ {$Apache::londefdef::table[-1]{'maxlen'}}, [];
2269: push @ {$Apache::londefdef::table[-1]{'content'}}, [];
1.122 albertel 2270: }
2271: return $currentstring;
2272: }
2273:
2274: sub end_tr {
1.160 sakharuk 2275: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 2276: my $currentstring = &end_p(); # Close any pending <p> in the row.
1.122 albertel 2277: if ($target eq 'web') {
1.277 foxr 2278: $currentstring .= $token->[2];
1.122 albertel 2279: } elsif ($target eq 'tex') {
1.160 sakharuk 2280: if ($Apache::londefdef::TD_redirection) {
2281: &end_td_tex($parstack,$parser,$safeeval);
2282: }
1.295 foxr 2283:
2284:
1.294 foxr 2285:
1.122 albertel 2286: }
2287: return $currentstring;
2288: }
2289:
1.166 sakharuk 2290: #-- <td> tag (end tag optional)
1.122 albertel 2291: sub start_td {
2292: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2293: my $currentstring = '';
2294: if ($target eq 'web') {
2295: $currentstring = $token->[4];
2296: } elsif ($target eq 'tex') {
1.160 sakharuk 2297: $Apache::londefdef::TD_redirection = 1;
1.159 sakharuk 2298: &tag_check('tr','td',$tagstack,$parstack,$parser,$safeeval);
1.122 albertel 2299: }
2300: return $currentstring;
2301: }
1.159 sakharuk 2302:
2303: sub tag_check {
2304: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
1.160 sakharuk 2305: my @ar=@$parstack;
2306: for (my $i=$#ar-1;$i>=0;$i--) {
2307: if (lc($$tagstack[$i]) eq $good_tag) {
2308: &start_td_tex($parstack,$parser,$safeeval);
2309: last;
2310: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2311: splice @ar, $i+1;
2312: &end_td_tex(\@ar,$parser,$safeeval);
2313: &start_td_tex($parstack,$parser,$safeeval);
2314: last;
1.159 sakharuk 2315: }
1.160 sakharuk 2316: }
1.159 sakharuk 2317: return '';
2318: }
2319:
2320: sub start_td_tex {
2321: my ($parstack,$parser,$safeeval) = @_;
1.206 sakharuk 2322: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2323: if ($alignchar eq '') {
2324: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
1.159 sakharuk 2325: }
1.206 sakharuk 2326: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
1.159 sakharuk 2327: $Apache::londefdef::table[-1]{'counter_columns'}++;
1.206 sakharuk 2328: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2329: if (defined $TeXwidth) {
2330: my $current_length=&recalc($TeXwidth);
2331: $current_length=~/(\d+\.?\d*)/;
2332: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2333: }
1.159 sakharuk 2334: &Apache::lonxml::startredirection();
2335: return '';
2336: }
2337:
2338: sub end_td_tex {
2339: my ($parstack,$parser,$safeeval) = @_;
2340: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2341: my $data=&Apache::lonxml::endredirection();
2342: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2343: if (defined $TeXwidth) {
1.206 sakharuk 2344: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2345: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2346: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
1.159 sakharuk 2347: } else {
1.206 sakharuk 2348: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2349: my $garbage_data=$data;
2350: my $fwidth=0;
2351: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2352: my $current_length=&recalc($1);
2353: $current_length=~/(\d+\.?\d*)/;
2354: if ($fwidth<$1) {$fwidth=$1;}
2355: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2356: }
2357: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2358: my $current_length=$1;
2359: if ($fwidth<$current_length) {$fwidth=$current_length;}
2360: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2361: }
2362: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2363: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2364: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2365: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
1.231 sakharuk 2366: } elsif ($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)*/) {
2367: my $garbage_data=$data;
2368: my $fwidth=0;
2369: while ($garbage_data=~/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)\s*\}/) {
2370: my $current_length=&recalc($1);
2371: $current_length=~/(\d+\.?\d*)/;
2372: if ($fwidth<$1) {$fwidth=$1;}
2373: $garbage_data=~s/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2374: }
2375: while ($garbage_data=~/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2376: my $current_length=&recalc($1);
2377: $current_length=~/(\d+\.?\d*)/;
2378: if ($fwidth<$1) {$fwidth=$1;}
2379: $garbage_data=~s/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2380: }
2381: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2382: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2383: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2384: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2385: $data=~s/\\\\\s*$//;
1.159 sakharuk 2386: } else {
1.166 sakharuk 2387: $data=~s/^\s+(\S.*)/$1/;
1.159 sakharuk 2388: $data=~s/(.*\S)\s+$/$1/;
1.166 sakharuk 2389: $data=~s/(\s)+/$1/;
1.206 sakharuk 2390: my ($current_length,$min_length)=(0,0);
1.166 sakharuk 2391: if ($data=~/\\vskip/) {
2392: my $newdata=$data;
2393: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2394: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2395: foreach my $elementdata (@newdata) {
1.206 sakharuk 2396: my $lengthnewdata=2.5*&LATEX_length($elementdata);
1.166 sakharuk 2397: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
1.206 sakharuk 2398: my @words=split(/ /,$elementdata);
2399: foreach my $word (@words) {
2400: my $lengthword=2.5*&LATEX_length($word);
2401: if ($min_length<$lengthword) {$min_length=$lengthword;}
2402: }
1.166 sakharuk 2403: }
2404: } else {
1.206 sakharuk 2405: $current_length=2.5*&LATEX_length($data);
2406: my @words=split(/ /,$data);
2407: foreach my $word (@words) {
1.228 sakharuk 2408: my $lengthword=2*&LATEX_length($word);
1.206 sakharuk 2409: if ($min_length<$lengthword) {$min_length=$lengthword;}
2410: }
1.166 sakharuk 2411: }
1.206 sakharuk 2412: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2413: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2414: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2415: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
1.159 sakharuk 2416: }
2417: }
2418: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
1.294 foxr 2419: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in] \&/;
1.159 sakharuk 2420: }
1.206 sakharuk 2421: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
1.159 sakharuk 2422: return'';
2423: }
2424:
1.122 albertel 2425: sub end_td {
1.126 sakharuk 2426: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 2427: my $currentstring = '';
2428: if ($target eq 'web') {
2429: $currentstring = $token->[2];
2430: } elsif ($target eq 'tex') {
1.160 sakharuk 2431: $Apache::londefdef::TD_redirection =0;
1.159 sakharuk 2432: &end_td_tex($parstack,$parser,$safeeval);
1.122 albertel 2433: }
2434: return $currentstring;
2435: }
2436:
1.166 sakharuk 2437: #-- <th> tag (end tag optional)
1.122 albertel 2438: sub start_th {
2439: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2440: my $currentstring = '';
2441: if ($target eq 'web') {
2442: $currentstring = $token->[4];
2443: } elsif ($target eq 'tex') {
1.230 sakharuk 2444: $Apache::londefdef::TD_redirection = 1;
2445: &tagg_check('tr','th',$tagstack,$parstack,$parser,$safeeval);
1.122 albertel 2446: }
2447: return $currentstring;
1.130 sakharuk 2448: }
1.230 sakharuk 2449:
2450: sub tagg_check {
2451: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
2452: my @ar=@$parstack;
2453: for (my $i=$#ar-1;$i>=0;$i--) {
2454: if (lc($$tagstack[$i]) eq $good_tag) {
2455: &start_th_tex($parstack,$parser,$safeeval);
2456: last;
2457: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2458: splice @ar, $i+1;
2459: &end_th_tex(\@ar,$parser,$safeeval);
2460: &start_th_tex($parstack,$parser,$safeeval);
2461: last;
2462: }
2463: }
2464: return '';
2465: }
2466:
2467: sub start_th_tex {
2468: my ($parstack,$parser,$safeeval) = @_;
2469: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2470: if ($alignchar eq '') {
2471: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
2472: }
2473: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
2474: $Apache::londefdef::table[-1]{'counter_columns'}++;
2475: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2476: if (defined $TeXwidth) {
2477: my $current_length=&recalc($TeXwidth);
2478: $current_length=~/(\d+\.?\d*)/;
2479: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2480: }
2481: &Apache::lonxml::startredirection();
2482: return '';
2483: }
2484:
2485: sub end_th_tex {
2486: my ($parstack,$parser,$safeeval) = @_;
2487: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2488: my $data=&Apache::lonxml::endredirection();
2489: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2490: if (defined $TeXwidth) {
2491: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2492: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2493: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2494: } else {
2495: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2496: my $garbage_data=$data;
2497: my $fwidth=0;
2498: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2499: my $current_length=&recalc($1);
2500: $current_length=~/(\d+\.?\d*)/;
2501: if ($fwidth<$1) {$fwidth=$1;}
2502: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2503: }
2504: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2505: my $current_length=$1;
2506: if ($fwidth<$current_length) {$fwidth=$current_length;}
2507: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2508: }
2509: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2510: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2511: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2512: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2513: } else {
2514: $data=~s/^\s+(\S.*)/$1/;
2515: $data=~s/(.*\S)\s+$/$1/;
2516: $data=~s/(\s)+/$1/;
2517: my ($current_length,$min_length)=(0,0);
2518: if ($data=~/\\vskip/) {
2519: my $newdata=$data;
2520: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2521: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2522: foreach my $elementdata (@newdata) {
2523: my $lengthnewdata=2.5*&LATEX_length($elementdata);
2524: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
2525: my @words=split(/ /,$elementdata);
2526: foreach my $word (@words) {
2527: my $lengthword=2.5*&LATEX_length($word);
2528: if ($min_length<$lengthword) {$min_length=$lengthword;}
2529: }
2530: }
2531: } else {
2532: $current_length=2.5*&LATEX_length($data);
2533: my @words=split(/ /,$data);
2534: foreach my $word (@words) {
2535: my $lengthword=2*&LATEX_length($word);
2536: if ($min_length<$lengthword) {$min_length=$lengthword;}
2537: }
2538: }
2539: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2540: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2541: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2542: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
2543: }
2544: }
2545: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
2546: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2547: }
2548: #make data bold
2549: $data='\textbf{'.$data.'}';
2550: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
2551: return'';
2552: }
2553:
1.122 albertel 2554: sub end_th {
1.130 sakharuk 2555: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 2556: my $currentstring = &end_p(); # Close any open <p> in the row.
1.122 albertel 2557: if ($target eq 'web') {
1.277 foxr 2558: $currentstring .= $token->[2];
1.122 albertel 2559: } elsif ($target eq 'tex') {
1.230 sakharuk 2560: $Apache::londefdef::TD_redirection =0;
2561: &end_th_tex($parstack,$parser,$safeeval);
1.122 albertel 2562: }
2563: return $currentstring;
2564: }
1.230 sakharuk 2565:
1.181 sakharuk 2566: #-- <img> tag (end tag forbidden)
1.249 foxr 2567: #
2568: # Render the <IMG> tag.
2569: # <IMG> has the following attributes (in addition to the
2570: # standard HTML ones:
2571: # TeXwrap - Governs how the tex target will try to wrap text around
2572: # horizontally aligned images.
2573: # TeXwidth - The width of the image when rendered for print (mm).
2574: # TeXheight - The height of the image when rendered for print (mm)
2575: # (Note there seems to also be support for this as a % of page size)
2576: #
1.122 albertel 2577: sub start_img {
2578: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2579: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,
2580: undef,1);
1.189 albertel 2581: if (not $src and ($target eq 'web' or $target eq 'tex')) {
2582: my $inside = &Apache::lonxml::get_all_text("/img",$parser);
2583: return '';
2584: }
1.290 albertel 2585: &Apache::lonxml::extlink($src);
1.122 albertel 2586: my $currentstring = '';
2587: my $scaling = .3;
1.249 foxr 2588:
2589: # Render unto browsers that which are the browser's...
2590:
1.122 albertel 2591: if ($target eq 'web') {
1.267 albertel 2592: if ($env{'browser.imagesuppress'} ne 'on') {
1.250 albertel 2593: $currentstring.=&Apache::lonenc::encrypt_ref($token,{'src'=>$src});
1.122 albertel 2594: } else {
2595: my $alttag= &Apache::lonxml::get_param
2596: ('alt',$parstack,$safeeval,undef,1);
2597: unless ($alttag) {
2598: $alttag=&Apache::lonmeta::alttag
2599: ($Apache::lonxml::pwd[-1],$src);
1.51 sakharuk 2600: }
1.158 sakharuk 2601: $currentstring.='[IMAGE: '.$alttag.']';
1.1 sakharuk 2602: }
1.249 foxr 2603:
2604: # and render unto TeX that which is LaTeX
2605:
1.122 albertel 2606: } elsif ($target eq 'tex') {
1.248 foxr 2607: #
2608: # The alignment will require some superstructure to be put around
2609: # the \includegraphics stuff. At present we can only partially
2610: # simulate the alignments offered by html.
2611: #
2612: #
2613: my $align = lc(&Apache::lonxml::get_param('align',
2614: $parstack,
2615: $safeeval,
2616: undef,1));
2617: if(!$align) {
1.287 foxr 2618: if (&is_inside_of($tagstack, "table")) {
2619: $align = "right"; # Force wraptext use.
2620: } else {
2621: $align = "bottom"; # This is html's default so it's ours too.
2622: }
1.248 foxr 2623: }
2624: #
2625: &Apache::lonxml::debug("Alignemnt = $align");
2626: # LaTeX's image/text wrapping is really bad since it wants to
2627: # make figures float.
2628: # The user has the optional parameter (applicable only to l/r
2629: # alignment to use the picins/parpic directive to get wrapped text
2630: # this is also imperfect.. that's why we give them a choice...
2631: # so they can't yell at us for our choice.
2632: #
2633: my $latex_rendering = &Apache::lonxml::get_param('TeXwrap',
2634: $parstack,
2635: $safeeval,
2636: undef,0);
2637: &Apache::lonxml::debug("LaTeX rendering = $latex_rendering");
2638: if(!$latex_rendering) {
1.288 foxr 2639: $latex_rendering = "texwrap";
1.248 foxr 2640: }
1.261 foxr 2641: &Apache::lonxml::debug("LaTeX rendering = $latex_rendering image file: $src");
1.248 foxr 2642:
1.256 albertel 2643: #if original gif/jpg/png file exist do following:
1.266 albertel 2644: my $origsrc=$src;
1.256 albertel 2645: my ($path,$file) = &get_eps_image($src);
1.122 albertel 2646: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.261 foxr 2647: &Apache::lonxml::debug("path = $path file = $file src = $src");
1.192 sakharuk 2648: if (-e $src) {
1.261 foxr 2649: &Apache::lonxml::debug("$src exists");
1.256 albertel 2650: my ($height_param,$width_param)=
1.266 albertel 2651: &image_size($origsrc,0.3,$parstack,$safeeval);
1.262 foxr 2652: my $destpath = $path;
1.263 foxr 2653: $destpath =~ s/ /\_/g; # Spaces in path cause LaTex to vomit.
2654: my $destfile = $file;
2655: $destfile =~ s/ /\_/g;
1.266 albertel 2656: my $size;
2657: if ($width_param) { $size.='width='.$width_param.' mm,'; }
2658: if ($height_param) { $size.='height='.$height_param.' mm]'; }
2659: $size='['.$size;
2660: $size=~s/,$/]/;
1.262 foxr 2661: $currentstring .= '\graphicspath{{'.$destpath.'}}'
1.266 albertel 2662: .'\includegraphics'.$size.'{'.$destfile.'} ';
1.256 albertel 2663:
1.248 foxr 2664: # If there's an alignment specification we need to honor it here.
2665: # For the horizontal alignments, we will also honor the
2666: # value of the latex specfication. The default is parbox,
2667: # and that's used for illegal values too.
2668: #
2669: # Even though we set a default alignment value, the user
2670: # could have given us an illegal value. In that case we
2671: # just use the default alignment of bottom..
2672: if ($align eq "top") {
2673: $currentstring = '\raisebox{-'.$height_param.'mm}{'.$currentstring.'}';
2674: } elsif (($align eq "center") || ($align eq "middle")) { # Being kind
2675: my $offset = $height_param/2;
2676: $currentstring = '\raisebox{-'.$offset.'mm}{'.$currentstring.'}';
2677: } elsif ($align eq "left") {
2678: if ($latex_rendering eq "parpic") {
2679: $currentstring = '\parpic[l]{'.$currentstring.'}';
1.286 foxr 2680: } else { # wrapfig render
2681: $currentstring = '\begin{wrapfigure}{l}{'.$width_param.'mm}'
2682: .'\scalebox{1.0}{'.$currentstring.'}\end{wrapfigure}';
1.248 foxr 2683: }
2684: } elsif ($align eq "right") {
2685: if ($latex_rendering eq "parpic") {
2686: $currentstring = '\parpic[r]{'.$currentstring.'}';
1.286 foxr 2687: } else { # wrapfig rendering
2688: $currentstring = '\begin{wrapfigure}{r}{'.$width_param.'mm}'
2689: .'\scalebox{1.0}{'.$currentstring.'}\end{wrapfigure}';
2690:
1.248 foxr 2691: }
2692: } else { # Bottom is also default.
2693: # $currentstring = '\raisebox{'.$height_param.'mm}{'.$currentstring.'}';
2694: }
1.122 albertel 2695: } else {
1.261 foxr 2696: &Apache::lonxml::debug("$src does not exist");
1.122 albertel 2697: #original image file doesn't exist so check the alt attribute
2698: my $alt =
2699: &Apache::lonxml::get_param('alt',$parstack,$safeeval,undef,1);
2700: unless ($alt) {
2701: $alt=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
2702: }
2703:
1.256 albertel 2704: if ($alt) { $currentstring .= ' '.$alt.' '; }
1.59 sakharuk 2705: }
1.249 foxr 2706:
2707: # And here's where the semi-quote breaks down: allow the user
2708: # to edit the beast as well by rendering the problem for edit:
1.186 albertel 2709: } elsif ($target eq 'edit') {
2710: $currentstring .=&Apache::edit::tag_start($target,$token);
2711: $currentstring .=&Apache::edit::text_arg('Image Url:','src',$token,70).
2712: &Apache::edit::browse('src',undef,'alt').' '.
2713: &Apache::edit::search('src',undef,'alt').'<br />';
2714: $currentstring .=&Apache::edit::text_arg('Description:','alt',$token,70).'<br />';
2715: $currentstring .=&Apache::edit::text_arg('width (pixel):','width',$token,5);
2716: $currentstring .=&Apache::edit::text_arg('height (pixel):','height',$token,5).'<br />';
2717: $currentstring .=&Apache::edit::text_arg('TeXwidth (mm):','TeXwidth',$token,5);
2718: $currentstring .=&Apache::edit::text_arg('TeXheight (mm):','TeXheight',$token,5);
1.234 albertel 2719: $currentstring .=&Apache::edit::select_arg('Alignment:','align',
2720: ['','bottom','middle','top','left','right'],$token,5);
1.249 foxr 2721: $currentstring .=&Apache::edit::select_arg('TeXwrap:', 'TeXwrap',
2722: ['', 'parbox', 'parpic'], $token, 2);
1.186 albertel 2723: $currentstring .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1.249 foxr 2724: my $src= &Apache::lonxml::get_param('src',$parstack,$safeeval);
2725: my $alt= &Apache::lonxml::get_param('alt',$parstack,$safeeval);
2726: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
2727: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
2728:
2729:
1.186 albertel 2730: $currentstring .= '<img src="'.$src.'" alt="'.$alt.'" ';
2731: if ($width) { $currentstring.=' width="'.$width.'" '; }
2732: if ($height) { $currentstring.=' height="'.$height.'" '; }
2733: $currentstring .= ' />';
2734: } elsif ($target eq 'modified') {
1.210 albertel 2735: my ($osrc,$owidth,$oheight)=
2736: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2737: my $ctag=&Apache::edit::get_new_args($token,$parstack,
1.234 albertel 2738: $safeeval,'src','alt','align',
1.249 foxr 2739: 'TeXwidth','TeXheight', 'TeXwrap',
1.210 albertel 2740: 'width','height');
2741: my ($nsrc,$nwidth,$nheight)=
2742: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2743: my $loc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$nsrc);
2744: &image_replication($loc);
2745: my ($iwidth,$iheight);
2746: if (-e $loc) {
2747: my $image = Image::Magick->new;
2748: $image->Read($loc);
2749: ($iwidth, $iheight) = ($image->Get('width'),
2750: $image->Get('height'));
2751: }
2752: if ($osrc ne $nsrc || (!$nwidth && !$nheight)) {
2753: # changed image or no size specified,
2754: # if they didn't explicitly change the
2755: # width or height use the ones from the image
2756: if ($iwidth && $iheight) {
2757: if ($owidth == $nwidth || (!$nwidth && !$nheight)) {
2758: $token->[2]{'width'} = $iwidth;$ctag=1;
2759: }
2760: if ($oheight == $nheight || (!$nwidth && !$nheight)) {
2761: $token->[2]{'height'}=$iheight;$ctag=1;
1.186 albertel 2762: }
2763: }
2764: }
1.210 albertel 2765: my ($cwidth,$cheight)=($token->[2]{'width'},$token->[2]{'height'});
2766: # if we don't have a width or height
2767: if ($iwidth && $cwidth && !$cheight) {
2768: $token->[2]{'height'}=int(($cwidth/$iwidth)*$iheight);$ctag=1;
2769: }
2770: if ($iheight && $cheight && !$cwidth) {
2771: $token->[2]{'width'}=int(($cheight/$iheight)*$iwidth);$ctag=1;
2772: }
2773: if ($ctag) {$currentstring=&Apache::edit::rebuild_tag($token);}
1.122 albertel 2774: }
1.261 foxr 2775:
1.122 albertel 2776: return $currentstring;
2777: }
2778:
2779: sub end_img {
2780: my ($target,$token) = @_;
2781: my $currentstring = '';
2782: if ($target eq 'web') {
2783: $currentstring = $token->[2];
2784: } elsif ($target eq 'tex') {
2785: $currentstring = '';
2786: }
2787: return $currentstring;
2788: }
2789:
1.181 sakharuk 2790: #-- <applet> tag (end tag required)
1.122 albertel 2791: sub start_applet {
2792: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2793:
2794: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,undef,1);
1.290 albertel 2795: &Apache::lonxml::extlink($code);
1.122 albertel 2796: my $archive=&Apache::lonxml::get_param('archive',$parstack,$safeeval,
2797: undef,1);
1.290 albertel 2798: &Apache::lonxml::extlink($archive);
1.122 albertel 2799: my $currentstring = '';
2800: if ($target eq 'web') {
1.267 albertel 2801: if ($env{'browser.appletsuppress'} ne 'on') {
1.250 albertel 2802: $currentstring = &Apache::lonenc::encrypt_ref($token,
2803: {'code'=>$code,
2804: 'archive'=>$archive}
2805: );
1.122 albertel 2806: } else {
2807: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
2808: $safeeval,undef,1);
2809: unless ($alttag) {
2810: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2811: $code);
1.44 sakharuk 2812: }
1.122 albertel 2813: $currentstring='[APPLET: '.$alttag.']';
1.1 sakharuk 2814: }
1.122 albertel 2815: } elsif ($target eq 'tex') {
1.177 albertel 2816: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
2817: $safeeval,undef,1);
2818: unless ($alttag) {
2819: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,
2820: undef,1);
2821: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2822: $code);
1.175 sakharuk 2823: }
1.177 albertel 2824: $currentstring.='\begin{center} \fbox{Java Applet: '.$alttag.
2825: '.}\end{center}';
1.122 albertel 2826: }
2827: return $currentstring;
2828: }
2829:
2830: sub end_applet {
2831: my ($target,$token) = @_;
2832: my $currentstring = '';
2833: if ($target eq 'web') {
2834: $currentstring = $token->[2];
2835: } elsif ($target eq 'tex') {
2836: }
2837: return $currentstring;
2838: }
2839:
1.181 sakharuk 2840: #-- <embed> tag (end tag optional/required)
1.122 albertel 2841: sub start_embed {
2842: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2843: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
1.290 albertel 2844: &Apache::lonxml::extlink($src);
1.122 albertel 2845: my $currentstring = '';
2846: if ($target eq 'web') {
1.267 albertel 2847: if ($env{'browser.embedsuppress'} ne 'on') {
1.250 albertel 2848: $currentstring=&Apache::lonenc::encrypt_ref($token,{'src'=>$src});
1.122 albertel 2849: } else {
2850: my $alttag=&Apache::lonxml::get_param
2851: ('alt',$parstack,$safeeval,undef,1);
2852: unless ($alttag) {
2853: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
1.42 albertel 2854: }
1.122 albertel 2855: $currentstring='[EMBED: '.$alttag.']';
1.10 www 2856: }
1.122 albertel 2857: } elsif ($target eq 'tex') {
2858: }
2859: return $currentstring;
2860: }
2861:
2862: sub end_embed {
2863: my ($target,$token) = @_;
2864: my $currentstring = '';
2865: if ($target eq 'web') {
2866: $currentstring = $token->[2];
1.175 sakharuk 2867: } elsif ($target eq 'tex') {
1.122 albertel 2868: }
2869: return $currentstring;
2870: }
2871:
1.181 sakharuk 2872: #-- <param> tag (end tag forbidden)
1.122 albertel 2873: sub start_param {
2874: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.290 albertel 2875: if (&Apache::lonxml::get_param('name',$parstack,
2876: $safeeval,undef,1)=~/^cabbase$/i) {
2877: my $value=&Apache::lonxml::get_param('value',$parstack,
2878: $safeeval,undef,1);
2879: &Apache::lonxml::extlink($value);
2880: }
2881:
2882: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2883: &Apache::lonxml::extlink($src);
1.122 albertel 2884: my $currentstring = '';
2885: if ($target eq 'web') {
1.250 albertel 2886: my %toconvert;
2887: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2888: if ($src) { $toconvert{'src'}= $src; }
2889: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval,
2890: undef,1);
1.251 albertel 2891: if ($name=~/^cabbase$/i) {
2892: $toconvert{'value'}=&Apache::lonxml::get_param('value',$parstack,
2893: $safeeval,undef,1);
2894: }
1.250 albertel 2895: $currentstring = &Apache::lonenc::encrypt_ref($token,\%toconvert);
1.122 albertel 2896: } elsif ($target eq 'tex') {
2897: }
2898: return $currentstring;
2899: }
2900:
2901: sub end_param {
2902: my ($target,$token) = @_;
2903: my $currentstring = '';
2904: if ($target eq 'web') {
2905: $currentstring = $token->[2];
2906: } elsif ($target eq 'tex') {
2907: }
2908: return $currentstring;
2909: }
2910:
2911: #-- <allow> tag
2912: sub start_allow {
2913: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2914: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
1.290 albertel 2915: &Apache::lonxml::extlink($src);
2916:
1.241 albertel 2917: if ($target eq 'tex') { &image_replication($src); }
1.122 albertel 2918: my $result;
2919: if ($target eq 'edit') {
2920: $result .=&Apache::edit::tag_start($target,$token);
2921: $result .=&Apache::edit::text_arg('File Spec:','src',$token,70);
2922: $result .=&Apache::edit::end_row();#.&Apache::edit::start_spanning_row();
2923: } elsif ($target eq 'modified') {
2924: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2925: $safeeval,'src');
2926: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2927: }
2928: return $result;
2929: }
2930:
2931: sub end_allow {
2932: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2933: if ( $target eq 'edit') { return (&Apache::edit::end_table()); }
2934: return '';
2935: }
1.119 www 2936:
1.181 sakharuk 2937: #-- Frames (end tag required)
2938: #-- <frameset>
1.122 albertel 2939: sub start_frameset {
2940: my ($target,$token) = @_;
1.277 foxr 2941: my $currentstring = ''; # Close any pending para.
1.122 albertel 2942: if ($target eq 'web') {
1.180 albertel 2943: if (!$Apache::lonxml::registered &&
1.267 albertel 2944: $env{'request.state'} eq 'published') {
1.122 albertel 2945: $currentstring.='<head>'.
2946: &Apache::lonmenu::registerurl(undef,$target).'</head>';
1.10 www 2947: }
1.133 www 2948: my $onLoad='';
2949: foreach my $key (keys(%{$token->[2]})) {
2950: if ($key =~ /^onload$/i) {
2951: $onLoad.=$token->[2]->{$key}.';';
2952: delete($token->[2]->{$key});
2953: }
2954: }
2955: $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad;
2956: my $onUnload='';
2957: foreach my $key (keys(%{$token->[2]})) {
2958: if ($key =~ /^onunload$/i) {
2959: $onUnload.=$token->[2]->{$key}.';';
2960: delete($token->[2]->{$key});
2961: }
2962: }
2963: $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().
2964: ';'.$onUnload;
2965:
2966: $currentstring .= '<'.$token->[1];
2967: foreach (keys %{$token->[2]}) {
2968: $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
2969: }
2970: $currentstring.='>';
1.122 albertel 2971: }
2972: return $currentstring;
2973: }
2974:
2975: sub end_frameset {
2976: my ($target,$token) = @_;
2977: my $currentstring = '';
2978: if ($target eq 'web') {
2979: $currentstring = $token->[2];
2980: }
2981: return $currentstring;
2982: }
1.162 sakharuk 2983:
1.181 sakharuk 2984: #-- <xmp> (end tag required)
1.162 sakharuk 2985: sub start_xmp {
2986: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2987: my $currentstring = '';
2988: if ($target eq 'web') {
2989: $currentstring .= $token->[4];
2990: } elsif ($target eq 'tex') {
2991: $currentstring .= '\begin{verbatim}';
2992: }
2993: return $currentstring;
2994: }
2995:
2996: sub end_xmp {
2997: my ($target,$token) = @_;
2998: my $currentstring = '';
2999: if ($target eq 'web') {
3000: $currentstring .= $token->[2];
3001: } elsif ($target eq 'tex') {
3002: $currentstring .= '\end{verbatim}';
3003: }
3004: return $currentstring;
3005: }
3006:
1.181 sakharuk 3007: #-- <pre> (end tag required)
1.122 albertel 3008: sub start_pre {
1.126 sakharuk 3009: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 3010: my $currentstring = &end_p(); # close off pending <p>
1.122 albertel 3011: if ($target eq 'web') {
3012: $currentstring .= $token->[4];
3013: } elsif ($target eq 'tex') {
1.136 sakharuk 3014: $currentstring .= '\begin{verbatim}';
1.122 albertel 3015: }
3016: return $currentstring;
3017: }
3018:
3019: sub end_pre {
3020: my ($target,$token) = @_;
3021: my $currentstring = '';
3022: if ($target eq 'web') {
3023: $currentstring .= $token->[2];
3024: } elsif ($target eq 'tex') {
1.136 sakharuk 3025: $currentstring .= '\end{verbatim}';
1.122 albertel 3026: }
3027: return $currentstring;
3028: }
3029:
3030: #-- <insert>
3031: sub start_insert {
3032: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3033: my $currentstring = '';
3034: if ($target eq 'web') {
3035: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
3036: $currentstring .= '<b>'.$display.'</b>';;
3037: }
3038: return $currentstring;
3039: }
3040:
3041: sub end_insert {
3042: my ($target,$token) = @_;
3043: my $currentstring = '';
3044: if ($target eq 'web') {
3045: $currentstring .= '';
3046: }
3047: return $currentstring;
3048: }
3049:
3050: #-- <externallink>
3051: sub start_externallink {
3052: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3053: my $currentstring = '';
3054: if ($target eq 'web') {
3055: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
3056: $currentstring .= '<b>'.$display.'</b>';;
3057: }
3058: return $currentstring;
3059: }
3060:
3061: sub end_externallink {
3062: my ($target,$token) = @_;
3063: my $currentstring = '';
3064: if ($target eq 'web') {
3065: $currentstring .= '';
3066: }
3067: return $currentstring;
3068: }
3069:
3070: #-- <blankspace heigth="">
3071: sub start_blankspace {
3072: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 3073: my $currentstring = &end_p(); # closes off any unclosed <p>
1.122 albertel 3074: if ($target eq 'tex') {
3075: my $howmuch = &Apache::lonxml::get_param('heigth',$parstack,$safeeval,undef,1);
3076: $currentstring .= '\vskip '.$howmuch.' ';
3077: }
3078: return $currentstring;
3079: }
3080:
3081: sub end_blankspace {
3082: my ($target,$token) = @_;
3083: my $currentstring = '';
3084: if ($target eq 'tex') {
3085: $currentstring .= '';
3086: }
3087: return $currentstring;
3088: }
3089:
1.181 sakharuk 3090: #-- <abbr> tag (end tag required)
1.122 albertel 3091: sub start_abbr {
3092: my ($target,$token) = @_;
3093: my $currentstring = '';
3094: if ($target eq 'web') {
3095: $currentstring = $token->[4];
3096: }
3097: return $currentstring;
3098: }
3099:
3100: sub end_abbr {
3101: my ($target,$token) = @_;
3102: my $currentstring = '';
3103: if ($target eq 'web') {
3104: $currentstring = $token->[2];
3105: }
3106: return $currentstring;
3107: }
3108:
1.181 sakharuk 3109: #-- <acronym> tag (end tag required)
1.122 albertel 3110: sub start_acronym {
3111: my ($target,$token) = @_;
3112: my $currentstring = '';
3113: if ($target eq 'web') {
3114: $currentstring = $token->[4];
3115: }
3116: return $currentstring;
3117: }
3118:
3119: sub end_acronym {
3120: my ($target,$token) = @_;
3121: my $currentstring = '';
3122: if ($target eq 'web') {
3123: $currentstring = $token->[2];
3124: }
3125: return $currentstring;
3126: }
3127:
1.181 sakharuk 3128: #-- <area> tag (end tag forbidden)
1.122 albertel 3129: sub start_area {
3130: my ($target,$token) = @_;
3131: my $currentstring = '';
3132: if ($target eq 'web') {
3133: $currentstring = $token->[4];
3134: }
3135: return $currentstring;
3136: }
3137:
3138: sub end_area {
3139: my ($target,$token) = @_;
3140: my $currentstring = '';
3141: if ($target eq 'web') {
3142: $currentstring = $token->[2];
3143: }
3144: return $currentstring;
3145: }
3146:
1.181 sakharuk 3147: #-- <base> tag (end tag forbidden)
1.122 albertel 3148: sub start_base {
3149: my ($target,$token) = @_;
3150: my $currentstring = '';
3151: if ($target eq 'web') {
3152: $currentstring = $token->[4];
1.161 sakharuk 3153: }
1.122 albertel 3154: return $currentstring;
3155: }
3156:
3157: sub end_base {
3158: my ($target,$token) = @_;
3159: my $currentstring = '';
3160: if ($target eq 'web') {
3161: $currentstring = $token->[2];
3162: }
3163: return $currentstring;
3164: }
3165:
1.181 sakharuk 3166: #-- <bdo> tag (end tag required)
1.122 albertel 3167: sub start_bdo {
3168: my ($target,$token) = @_;
3169: my $currentstring = '';
3170: if ($target eq 'web') {
3171: $currentstring = $token->[4];
3172: }
3173: return $currentstring;
3174: }
3175:
3176: sub end_bdo {
3177: my ($target,$token) = @_;
3178: my $currentstring = '';
3179: if ($target eq 'web') {
3180: $currentstring = $token->[2];
3181: }
3182: return $currentstring;
3183: }
3184:
1.181 sakharuk 3185: #-- <bgsound> tag (end tag optional)
1.122 albertel 3186: sub start_bgsound {
3187: my ($target,$token) = @_;
3188: my $currentstring = '';
3189: if ($target eq 'web') {
3190: $currentstring = $token->[4];
3191: }
3192: return $currentstring;
3193: }
3194:
3195: sub end_bgsound {
3196: my ($target,$token) = @_;
3197: my $currentstring = '';
3198: if ($target eq 'web') {
3199: $currentstring = $token->[2];
3200: }
3201: return $currentstring;
3202: }
3203:
1.181 sakharuk 3204: #-- <blink> tag (end tag required)
1.122 albertel 3205: sub start_blink {
3206: my ($target,$token) = @_;
3207: my $currentstring = '';
3208: if ($target eq 'web') {
3209: $currentstring = $token->[4];
3210: }
3211: return $currentstring;
3212: }
3213:
3214: sub end_blink {
3215: my ($target,$token) = @_;
3216: my $currentstring = '';
3217: if ($target eq 'web') {
3218: $currentstring = $token->[2];
3219: }
3220: return $currentstring;
3221: }
3222:
1.181 sakharuk 3223: #-- <blockquote> tag (end tag required)
1.122 albertel 3224: sub start_blockquote {
3225: my ($target,$token) = @_;
1.279 foxr 3226: my $currentstring = &end_p(); # Close any unclosed <p>
1.122 albertel 3227: if ($target eq 'web') {
1.277 foxr 3228: $currentstring .= $token->[4];
1.122 albertel 3229: }
3230: return $currentstring;
3231: }
3232:
3233: sub end_blockquote {
3234: my ($target,$token) = @_;
3235: my $currentstring = '';
3236: if ($target eq 'web') {
3237: $currentstring = $token->[2];
3238: }
3239: return $currentstring;
3240: }
3241:
1.181 sakharuk 3242: #-- <button> tag (end tag required)
1.122 albertel 3243: sub start_button {
3244: my ($target,$token) = @_;
3245: my $currentstring = '';
3246: if ($target eq 'web') {
3247: $currentstring = $token->[4];
3248: }
3249: return $currentstring;
3250: }
3251:
3252: sub end_button {
3253: my ($target,$token) = @_;
3254: my $currentstring = '';
3255: if ($target eq 'web') {
3256: $currentstring = $token->[2];
3257: }
3258: return $currentstring;
3259: }
3260:
1.181 sakharuk 3261: #-- <caption> tag (end tag required)
1.122 albertel 3262: sub start_caption {
3263: my ($target,$token) = @_;
3264: my $currentstring = '';
3265: if ($target eq 'web') {
3266: $currentstring = $token->[4];
3267: }
3268: return $currentstring;
3269: }
3270:
3271: sub end_caption {
3272: my ($target,$token) = @_;
3273: my $currentstring = '';
3274: if ($target eq 'web') {
3275: $currentstring = $token->[2];
3276: }
3277: return $currentstring;
3278: }
3279:
1.181 sakharuk 3280: #-- <col> tag (end tag forbdden)
1.122 albertel 3281: sub start_col {
3282: my ($target,$token) = @_;
3283: my $currentstring = '';
3284: if ($target eq 'web') {
3285: $currentstring = $token->[4];
3286: }
3287: return $currentstring;
3288: }
3289:
3290: sub end_col {
3291: my ($target,$token) = @_;
3292: my $currentstring = '';
3293: if ($target eq 'web') {
3294: $currentstring = $token->[2];
3295: }
3296: return $currentstring;
3297: }
3298:
1.181 sakharuk 3299: #-- <colgroup> tag (end tag optional)
1.122 albertel 3300: sub start_colgroup {
3301: my ($target,$token) = @_;
3302: my $currentstring = '';
3303: if ($target eq 'web') {
3304: $currentstring = $token->[4];
3305: }
3306: return $currentstring;
3307: }
3308:
3309: sub end_colgroup {
3310: my ($target,$token) = @_;
3311: my $currentstring = '';
3312: if ($target eq 'web') {
3313: $currentstring = $token->[2];
3314: }
3315: return $currentstring;
3316: }
3317:
1.181 sakharuk 3318: #-- <del> tag (end tag required)
1.122 albertel 3319: sub start_del {
3320: my ($target,$token) = @_;
3321: my $currentstring = '';
3322: if ($target eq 'web') {
3323: $currentstring = $token->[4];
3324: }
3325: return $currentstring;
3326: }
3327:
3328: sub end_del {
3329: my ($target,$token) = @_;
3330: my $currentstring = '';
3331: if ($target eq 'web') {
3332: $currentstring = $token->[2];
3333: }
3334: return $currentstring;
3335: }
3336:
1.181 sakharuk 3337: #-- <fieldset> tag (end tag required)
1.122 albertel 3338: sub start_fieldset {
3339: my ($target,$token) = @_;
3340: my $currentstring = '';
3341: if ($target eq 'web') {
3342: $currentstring = $token->[4];
3343: }
3344: return $currentstring;
3345: }
3346:
3347: sub end_fieldset {
3348: my ($target,$token) = @_;
3349: my $currentstring = '';
3350: if ($target eq 'web') {
3351: $currentstring = $token->[2];
3352: }
3353: return $currentstring;
3354: }
3355:
1.181 sakharuk 3356: #-- <frame> tag (end tag forbidden)
1.122 albertel 3357: sub start_frame {
3358: my ($target,$token) = @_;
3359: my $currentstring = '';
3360: if ($target eq 'web') {
3361: $currentstring = $token->[4];
3362: }
3363: return $currentstring;
3364: }
3365:
3366: sub end_frame {
3367: my ($target,$token) = @_;
3368: my $currentstring = '';
3369: if ($target eq 'web') {
3370: $currentstring = $token->[2];
3371: }
3372: return $currentstring;
3373: }
3374:
1.181 sakharuk 3375: #-- <iframe> tag (end tag required)
1.122 albertel 3376: sub start_iframe {
3377: my ($target,$token) = @_;
3378: my $currentstring = '';
3379: if ($target eq 'web') {
3380: $currentstring = $token->[4];
3381: }
3382: return $currentstring;
3383: }
3384:
3385: sub end_iframe {
3386: my ($target,$token) = @_;
3387: my $currentstring = '';
3388: if ($target eq 'web') {
3389: $currentstring = $token->[2];
3390: }
3391: return $currentstring;
3392: }
3393:
1.181 sakharuk 3394: #-- <ins> tag (end tag required)
1.122 albertel 3395: sub start_ins {
3396: my ($target,$token) = @_;
3397: my $currentstring = '';
3398: if ($target eq 'web') {
3399: $currentstring = $token->[4];
3400: }
3401: return $currentstring;
3402: }
3403:
3404: sub end_ins {
3405: my ($target,$token) = @_;
3406: my $currentstring = '';
3407: if ($target eq 'web') {
3408: $currentstring = $token->[2];
3409: }
3410: return $currentstring;
3411: }
3412:
1.181 sakharuk 3413: #-- <isindex> tag (end tag forbidden)
1.122 albertel 3414: sub start_isindex {
3415: my ($target,$token) = @_;
3416: my $currentstring = '';
3417: if ($target eq 'web') {
3418: $currentstring = $token->[4];
3419: }
3420: return $currentstring;
3421: }
3422:
3423: sub end_isindex {
3424: my ($target,$token) = @_;
3425: my $currentstring = '';
3426: if ($target eq 'web') {
3427: $currentstring = $token->[2];
3428: }
3429: return $currentstring;
3430: }
3431:
1.181 sakharuk 3432: #-- <keygen> tag (end tag forbidden)
1.122 albertel 3433: sub start_keygen {
3434: my ($target,$token) = @_;
3435: my $currentstring = '';
3436: if ($target eq 'web') {
3437: $currentstring = $token->[4];
3438: }
3439: return $currentstring;
3440: }
3441:
3442: sub end_keygen {
3443: my ($target,$token) = @_;
3444: my $currentstring = '';
3445: if ($target eq 'web') {
3446: $currentstring = $token->[2];
3447: }
3448: return $currentstring;
3449: }
3450:
3451: #-- <label> tag
3452: sub start_label {
3453: my ($target,$token) = @_;
3454: my $currentstring = '';
3455: if ($target eq 'web') {
3456: $currentstring = $token->[4];
3457: }
3458: return $currentstring;
3459: }
3460:
3461: sub end_label {
3462: my ($target,$token) = @_;
3463: my $currentstring = '';
3464: if ($target eq 'web') {
3465: $currentstring = $token->[2];
3466: }
3467: return $currentstring;
3468: }
3469:
1.181 sakharuk 3470: #-- <layer> tag (end tag required)
1.122 albertel 3471: sub start_layer {
3472: my ($target,$token) = @_;
3473: my $currentstring = '';
3474: if ($target eq 'web') {
3475: $currentstring = $token->[4];
3476: }
3477: return $currentstring;
3478: }
3479:
3480: sub end_layer {
3481: my ($target,$token) = @_;
3482: my $currentstring = '';
3483: if ($target eq 'web') {
3484: $currentstring = $token->[2];
3485: }
3486: return $currentstring;
3487: }
3488:
1.181 sakharuk 3489: #-- <legend> tag (end tag required)
1.122 albertel 3490: sub start_legend {
3491: my ($target,$token) = @_;
3492: my $currentstring = '';
3493: if ($target eq 'web') {
3494: $currentstring = $token->[4];
3495: }
3496: return $currentstring;
3497: }
3498:
3499: sub end_legend {
3500: my ($target,$token) = @_;
3501: my $currentstring = '';
3502: if ($target eq 'web') {
3503: $currentstring = $token->[2];
3504: }
3505: return $currentstring;
3506: }
3507:
1.181 sakharuk 3508: #-- <link> tag (end tag forbidden)
1.122 albertel 3509: sub start_link {
1.292 albertel 3510: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 3511: my $currentstring = '';
3512: if ($target eq 'web') {
1.291 albertel 3513: my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
3514: undef,1);
3515: &Apache::lonxml::extlink($href);
1.122 albertel 3516: $currentstring = $token->[4];
3517: }
3518: return $currentstring;
3519: }
3520:
3521: sub end_link {
3522: my ($target,$token) = @_;
3523: my $currentstring = '';
3524: if ($target eq 'web') {
3525: $currentstring = $token->[2];
3526: }
3527: return $currentstring;
3528: }
3529:
1.181 sakharuk 3530: #-- <marquee> tag (end tag optional)
1.122 albertel 3531: sub start_marquee {
3532: my ($target,$token) = @_;
3533: my $currentstring = '';
3534: if ($target eq 'web') {
3535: $currentstring = $token->[4];
3536: }
3537: return $currentstring;
3538: }
3539:
3540: sub end_marquee {
3541: my ($target,$token) = @_;
3542: my $currentstring = '';
3543: if ($target eq 'web') {
3544: $currentstring = $token->[2];
3545: }
3546: return $currentstring;
3547: }
3548:
1.179 sakharuk 3549: #-- <multicol> tag (end tag required)
3550: sub start_multicol {
1.122 albertel 3551: my ($target,$token) = @_;
1.279 foxr 3552: my $currentstring = &end_p(); # Close any pending <p>
1.122 albertel 3553: if ($target eq 'web') {
1.277 foxr 3554: $currentstring .= $token->[4];
1.122 albertel 3555: }
3556: return $currentstring;
3557: }
3558:
1.179 sakharuk 3559: sub end_multicol {
1.122 albertel 3560: my ($target,$token) = @_;
3561: my $currentstring = '';
3562: if ($target eq 'web') {
3563: $currentstring = $token->[2];
3564: }
3565: return $currentstring;
3566: }
3567:
1.179 sakharuk 3568: #-- <nobr> tag (end tag required)
1.122 albertel 3569: sub start_nobr {
3570: my ($target,$token) = @_;
3571: my $currentstring = '';
3572: if ($target eq 'web') {
3573: $currentstring = $token->[4];
1.179 sakharuk 3574: } elsif ($target eq 'tex') {
3575: $currentstring='\mbox{';
3576: }
1.122 albertel 3577: return $currentstring;
3578: }
3579:
3580: sub end_nobr {
3581: my ($target,$token) = @_;
3582: my $currentstring = '';
3583: if ($target eq 'web') {
3584: $currentstring = $token->[2];
1.179 sakharuk 3585: } elsif ($target eq 'tex') {
3586: $currentstring='}';
3587: }
1.122 albertel 3588: return $currentstring;
3589: }
3590:
1.179 sakharuk 3591: #-- <noembed> tag (end tag required)
1.122 albertel 3592: sub start_noembed {
3593: my ($target,$token) = @_;
3594: my $currentstring = '';
3595: if ($target eq 'web') {
3596: $currentstring = $token->[4];
3597: }
3598: return $currentstring;
3599: }
3600:
3601: sub end_noembed {
3602: my ($target,$token) = @_;
3603: my $currentstring = '';
3604: if ($target eq 'web') {
3605: $currentstring = $token->[2];
3606: }
3607: return $currentstring;
3608: }
3609:
1.179 sakharuk 3610: #-- <noframes> tag (end tag required)
1.122 albertel 3611: sub start_noframes {
3612: my ($target,$token) = @_;
3613: my $currentstring = '';
3614: if ($target eq 'web') {
3615: $currentstring = $token->[4];
3616: }
3617: return $currentstring;
3618: }
3619:
3620: sub end_noframes {
3621: my ($target,$token) = @_;
3622: my $currentstring = '';
3623: if ($target eq 'web') {
3624: $currentstring = $token->[2];
3625: }
3626: return $currentstring;
3627: }
3628:
1.179 sakharuk 3629: #-- <nolayer> tag (end tag required)
1.122 albertel 3630: sub start_nolayer {
3631: my ($target,$token) = @_;
3632: my $currentstring = '';
3633: if ($target eq 'web') {
3634: $currentstring = $token->[4];
3635: }
3636: return $currentstring;
3637: }
3638:
3639: sub end_nolayer {
3640: my ($target,$token) = @_;
3641: my $currentstring = '';
3642: if ($target eq 'web') {
3643: $currentstring = $token->[2];
3644: }
3645: return $currentstring;
3646: }
3647:
1.179 sakharuk 3648: #-- <noscript> tag (end tag required)
1.122 albertel 3649: sub start_noscript {
3650: my ($target,$token) = @_;
3651: my $currentstring = '';
3652: if ($target eq 'web') {
3653: $currentstring = $token->[4];
3654: }
3655: return $currentstring;
3656: }
3657:
3658: sub end_noscript {
3659: my ($target,$token) = @_;
3660: my $currentstring = '';
3661: if ($target eq 'web') {
3662: $currentstring = $token->[2];
3663: }
3664: return $currentstring;
3665: }
3666:
1.179 sakharuk 3667: #-- <object> tag (end tag required)
1.122 albertel 3668: sub start_object {
3669: my ($target,$token) = @_;
3670: my $currentstring = '';
3671: if ($target eq 'web') {
3672: $currentstring = $token->[4];
3673: }
3674: return $currentstring;
3675: }
3676:
3677: sub end_object {
3678: my ($target,$token) = @_;
3679: my $currentstring = '';
3680: if ($target eq 'web') {
3681: $currentstring = $token->[2];
3682: }
3683: return $currentstring;
3684: }
3685:
1.179 sakharuk 3686: #-- <optgroup> tag (end tag required)
1.122 albertel 3687: sub start_optgroup {
3688: my ($target,$token) = @_;
3689: my $currentstring = '';
3690: if ($target eq 'web') {
3691: $currentstring = $token->[4];
3692: }
3693: return $currentstring;
3694: }
3695:
3696: sub end_optgroup {
3697: my ($target,$token) = @_;
3698: my $currentstring = '';
3699: if ($target eq 'web') {
3700: $currentstring = $token->[2];
3701: }
3702: return $currentstring;
3703: }
3704:
1.179 sakharuk 3705: #-- <samp> tag (end tag required)
1.122 albertel 3706: sub start_samp {
3707: my ($target,$token) = @_;
3708: my $currentstring = '';
3709: if ($target eq 'web') {
3710: $currentstring = $token->[4];
1.179 sakharuk 3711: } elsif ($target eq 'tex') {
3712: $currentstring='\texttt{';
3713: }
1.122 albertel 3714: return $currentstring;
3715: }
3716:
3717: sub end_samp {
3718: my ($target,$token) = @_;
3719: my $currentstring = '';
3720: if ($target eq 'web') {
3721: $currentstring = $token->[2];
1.179 sakharuk 3722: } elsif ($target eq 'tex') {
3723: $currentstring='}';
3724: }
1.122 albertel 3725: return $currentstring;
3726: }
3727:
3728: #-- <server> tag
3729: sub start_server {
3730: my ($target,$token) = @_;
3731: my $currentstring = '';
3732: if ($target eq 'web') {
3733: $currentstring = $token->[4];
3734: }
3735: return $currentstring;
3736: }
3737:
3738: sub end_server {
3739: my ($target,$token) = @_;
3740: my $currentstring = '';
3741: if ($target eq 'web') {
3742: $currentstring = $token->[2];
3743: }
3744: return $currentstring;
3745: }
3746:
1.179 sakharuk 3747: #-- <spacer> tag (end tag forbidden)
1.122 albertel 3748: sub start_spacer {
3749: my ($target,$token) = @_;
1.279 foxr 3750: my $currentstring = &end_p(); # Close off any open <p> tag.
1.122 albertel 3751: if ($target eq 'web') {
1.277 foxr 3752: $currentstring .= $token->[4];
1.122 albertel 3753: }
3754: return $currentstring;
3755: }
3756:
3757: sub end_spacer {
3758: my ($target,$token) = @_;
3759: my $currentstring = '';
3760: if ($target eq 'web') {
3761: $currentstring = $token->[2];
3762: }
3763: return $currentstring;
3764: }
3765:
1.179 sakharuk 3766: #-- <span> tag (end tag required)
1.122 albertel 3767: sub start_span {
3768: my ($target,$token) = @_;
3769: my $currentstring = '';
3770: if ($target eq 'web') {
3771: $currentstring = $token->[4];
3772: }
3773: return $currentstring;
3774: }
3775:
3776: sub end_span {
3777: my ($target,$token) = @_;
3778: my $currentstring = '';
3779: if ($target eq 'web') {
3780: $currentstring = $token->[2];
3781: }
3782: return $currentstring;
3783: }
3784:
1.179 sakharuk 3785: #-- <tbody> tag (end tag optional)
1.122 albertel 3786: sub start_tbody {
3787: my ($target,$token) = @_;
3788: my $currentstring = '';
3789: if ($target eq 'web') {
3790: $currentstring = $token->[4];
3791: }
3792: return $currentstring;
3793: }
3794:
3795: sub end_tbody {
3796: my ($target,$token) = @_;
3797: my $currentstring = '';
3798: if ($target eq 'web') {
3799: $currentstring = $token->[2];
3800: }
3801: return $currentstring;
3802: }
3803:
1.166 sakharuk 3804: #-- <tfoot> tag (end tag optional)
1.122 albertel 3805: sub start_tfoot {
3806: my ($target,$token) = @_;
3807: my $currentstring = '';
3808: if ($target eq 'web') {
3809: $currentstring = $token->[4];
3810: }
3811: return $currentstring;
3812: }
3813:
3814: sub end_tfoot {
3815: my ($target,$token) = @_;
3816: my $currentstring = '';
3817: if ($target eq 'web') {
3818: $currentstring = $token->[2];
3819: }
3820: return $currentstring;
3821: }
3822:
1.166 sakharuk 3823: #-- <thead> tag (end tag optional)
1.122 albertel 3824: sub start_thead {
3825: my ($target,$token) = @_;
3826: my $currentstring = '';
3827: if ($target eq 'web') {
3828: $currentstring = $token->[4];
3829: }
3830: return $currentstring;
3831: }
1.10 www 3832:
1.122 albertel 3833: sub end_thead {
3834: my ($target,$token) = @_;
3835: my $currentstring = '';
3836: if ($target eq 'web') {
3837: $currentstring = $token->[2];
3838: }
3839: return $currentstring;
3840: }
1.119 www 3841:
1.122 albertel 3842: #-- <var> tag
3843: sub start_var {
1.44 sakharuk 3844: my ($target,$token) = @_;
3845: my $currentstring = '';
3846: if ($target eq 'web') {
1.122 albertel 3847: $currentstring = $token->[4];
1.163 sakharuk 3848: } elsif ($target eq 'tex') {
3849: $currentstring = '\textit{';
3850: }
1.44 sakharuk 3851: return $currentstring;
3852: }
1.10 www 3853:
1.122 albertel 3854: sub end_var {
3855: my ($target,$token) = @_;
1.44 sakharuk 3856: my $currentstring = '';
3857: if ($target eq 'web') {
1.163 sakharuk 3858: $currentstring = $token->[2];
3859: } elsif ($target eq 'tex') {
3860: $currentstring = '}';
1.44 sakharuk 3861: }
3862: return $currentstring;
3863: }
1.119 www 3864:
1.163 sakharuk 3865: #-- <wbr> tag (end tag forbidden)
1.122 albertel 3866: sub start_wbr {
3867: my ($target,$token) = @_;
3868: my $currentstring = '';
3869: if ($target eq 'web') {
3870: $currentstring = $token->[4];
3871: }
3872: return $currentstring;
1.98 albertel 3873: }
3874:
1.122 albertel 3875: sub end_wbr {
3876: my ($target,$token) = @_;
3877: my $currentstring = '';
3878: if ($target eq 'web') {
3879: $currentstring = $token->[2];
3880: }
3881: return $currentstring;
1.98 albertel 3882: }
1.134 sakharuk 3883:
3884: #-- <hideweboutput> tag
3885: sub start_hideweboutput {
3886: my ($target,$token) = @_;
3887: if ($target eq 'web') {
3888: &Apache::lonxml::startredirection();
3889: }
3890: return '';
3891: }
3892:
3893: sub end_hideweboutput {
3894: my ($target,$token) = @_;
3895: my $currentstring = '';
3896: if ($target eq 'web') {
3897: $currentstring = &Apache::lonxml::endredirection();
3898: }
3899: return '';
3900: }
3901:
1.94 sakharuk 3902:
3903: sub image_replication {
3904: my $src = shift;
1.187 albertel 3905: if (not -e $src) { &Apache::lonnet::repcopy($src); }
3906: #replicates eps or ps
3907: my $epssrc = my $pssrc = $src;
3908: $epssrc =~ s/\.(gif|jpg|jpeg|png)$/.eps/i;
3909: $pssrc =~ s/\.(gif|jpg|jpeg|png)$/.ps/i;
3910: if (not -e $epssrc && not -e $pssrc) {
3911: my $result=&Apache::lonnet::repcopy($epssrc);
1.264 raeburn 3912: if ($result ne 'ok') { &Apache::lonnet::repcopy($pssrc); }
1.94 sakharuk 3913: }
3914: return '';
1.195 sakharuk 3915: }
1.275 foxr 3916: #
3917: # Get correct sizing parameter for an image given
3918: # it's initial ht. and wid. This allows sizing of
3919: # images that are generated on-the-fly (e.g. gnuplot)
3920: # as well as serving as a utility for image_size.
3921: #
3922: # Parameter:
3923: # height_param
3924: # width_param - Initial picture dimensions.
3925: # scaling - A scale factor.
3926: # parstack, - the current stack of tag attributes
3927: # from the xml parser
3928: # safeeval, - pointer to the safespace
3929: # depth, - from what level in the stack to look for attributes
3930: # (assumes -1 if unspecified)
3931: # cis - look for attrubutes case insensitively
3932: # (assumes false)
3933: #
3934: # Returns:
3935: # height, width - new dimensions.
3936: #
3937: sub resize_image {
3938: my ($height_param, $width_param, $scaling,
3939: $parstack, $safeeval, $depth, $cis) = @_;
3940:
3941: # First apply the scaling...
1.271 foxr 3942:
1.275 foxr 3943: $height_param = $height_param * $scaling;
3944: $width_param = $width_param * $scaling;
1.261 foxr 3945:
1.197 sakharuk 3946: #do we have any specified LaTeX size of the picture?
1.261 foxr 3947: my $toget='TeXwidth';
3948: if ($cis) {
3949: $toget=lc($toget);
3950: }
1.256 albertel 3951: my $TeXwidth = &Apache::lonxml::get_param($toget,$parstack,
3952: $safeeval,$depth,$cis);
3953: $toget='TeXheight'; if ($cis) { $toget=lc($toget); }
3954: my $TeXheight = &Apache::lonxml::get_param($toget,$parstack,
3955: $safeeval,$depth,$cis);
1.197 sakharuk 3956: #do we have any specified web size of the picture?
3957: my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval,
1.256 albertel 3958: $depth,1);
3959: if ($TeXwidth) {
1.252 matthew 3960: my $old_width_param=$width_param;
1.197 sakharuk 3961: if ($TeXwidth=~/(\d+)\s*\%/) {
1.267 albertel 3962: $width_param = $1*$env{'form.textwidth'}/100;
1.197 sakharuk 3963: } else {
3964: $width_param = $TeXwidth;
3965: }
1.266 albertel 3966: if ($TeXheight) {
3967: $height_param = $TeXheight;
3968: } elsif ($old_width_param) {
3969: $height_param=$TeXwidth/$old_width_param*$height_param;
3970: }
1.256 albertel 3971: } elsif ($TeXheight) {
1.248 foxr 3972: $height_param = $TeXheight;
1.266 albertel 3973: if ($height_param) {
3974: $width_param = $TeXheight/$height_param*$width_param;
3975: }
1.256 albertel 3976: } elsif ($width) {
1.252 matthew 3977: my $old_width_param=$width_param;
1.256 albertel 3978: $width_param = $width*$scaling;
1.266 albertel 3979: if ($old_width_param) {
3980: $height_param=$width_param/$old_width_param*$height_param;
3981: }
1.252 matthew 3982: }
1.267 albertel 3983: if ($width_param > $env{'form.textwidth'}) {
1.252 matthew 3984: my $old_width_param=$width_param;
1.267 albertel 3985: $width_param =0.95*$env{'form.textwidth'};
1.266 albertel 3986: if ($old_width_param) {
3987: $height_param=$width_param/$old_width_param*$height_param;
3988: }
1.197 sakharuk 3989: }
1.275 foxr 3990:
3991: return ($height_param, $width_param);
3992: }
3993:
3994: sub image_size {
3995: my ($src,$scaling,$parstack,$safeeval,$depth,$cis)=@_;
3996:
3997: #size of image from gif/jpg/jpeg/png
3998: my $ressrc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
3999: if (-e $ressrc) {
4000: $src = $ressrc;
4001: }
4002: my $image = Image::Magick->new;
4003: my $current_figure = $image->Read($src);
4004: my $width_param = $image->Get('width');
4005: my $height_param = $image->Get('height');
4006: &Apache::lonxml::debug("Image magick says: $src : Height = $height_param width = $width_param");
4007: undef($image);
4008:
4009: ($height_param, $width_param) = &resize_image($height_param, $width_param,
4010: $scaling, $parstack, $safeeval,
4011: $depth, $cis);
4012:
1.248 foxr 4013: return ($height_param, $width_param);
4014: }
4015:
4016: sub image_width {
4017: my ($height, $width) = &image_size(@_);
4018: return $width;
4019: }
4020: # Not yet 100% sure this is correct in all circumstances..
4021: # due to my uncertainty about mods to image_size.
4022: #
4023: sub image_height {
4024: my ($height, $width) = &image_size(@_);
4025: return $height;
1.197 sakharuk 4026: }
4027:
1.256 albertel 4028: sub get_eps_image {
4029: my ($src)=@_;
1.261 foxr 4030: my $orig_src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1], $src);
1.285 foxr 4031:
4032: # In order to prevent the substitution of the alt text, we need to
4033: # be sure the orig_src file is on system now so:
4034:
4035: if (! -e $orig_src) {
4036: &Apache::lonnet::repcopy($orig_src); # Failure is not completely fatal.
4037: }
1.275 foxr 4038: &Apache::lonxml::debug("get_eps_image: Original image: $orig_src");
1.282 foxr 4039: my ($spath, $sname, $sext) = fileparse($src, qr/\.(gif|png|jpg|jpeg)/i);
1.256 albertel 4040: $src=~s/\.(gif|png|jpg|jpeg)$/\.eps/i;
4041: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.275 foxr 4042: &Apache::lonxml::debug("Filelocation gives: $src");
1.256 albertel 4043: if (! -e $src) {
1.261 foxr 4044: &Apache::lonxml::debug("$src does not exist");
1.264 raeburn 4045: if (&Apache::lonnet::repcopy($src) ne 'ok' ) {
1.261 foxr 4046: &Apache::lonxml::debug("Repcopy of $src failed (1)");
1.256 albertel 4047: #if replication failed try to find ps file
4048: $src=~s/\.eps$/\.ps/;
1.261 foxr 4049: &Apache::lonxml::debug("Now looking for $src");
1.270 foxr 4050: #if no ps file try to replicate it.
4051: my $didrepcopy = &Apache::lonnet::repcopy($src);
4052: &Apache::lonxml::debug("repcopy of $src ... $didrepcopy");
4053: if ( (not -e $src) ||
4054: ($didrepcopy ne 'ok')) {
1.261 foxr 4055: &Apache::lonxml::debug("Failed to find or replicate $src");
4056:
1.256 albertel 4057: #if replication failed try to produce eps file dynamically
4058: $src=~s/\.ps$/\.eps/;
4059: my $temp_file;
1.267 albertel 4060: open(FILE,">>/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat");
1.256 albertel 4061: my $newsrc=$orig_src;
4062: $newsrc =~ s|(.*)/res/|/home/httpd/html/res/|;
1.275 foxr 4063: &Apache::lonxml::debug("queueing $newsrc for dynamic eps production.");
1.256 albertel 4064: print FILE "$newsrc\n";
1.261 foxr 4065: close FILE;
1.256 albertel 4066: $src=~s|/home/httpd/html/res|/home/httpd/prtspool|;
4067: $src=~s|/home/([^/]*)/public_html/|/home/httpd/prtspool/$1/|;
1.283 albertel 4068: if ($sext ne "") { # Put the ext. back in to uniquify.
4069: $src =~ s/\.eps$/$sext.eps/;
4070: }
1.256 albertel 4071: }
4072: }
4073: }
4074: my ($path,$file)=($src=~m|(.*)/([^/]*)$|);
1.261 foxr 4075: &Apache::lonxml::debug("get_eps_image returning: $path / $file<BR />");
1.256 albertel 4076: return ($path.'/',$file);
4077: }
4078:
1.195 sakharuk 4079: sub eps_generation {
4080: my ($src,$file,$width_param) = @_;
1.267 albertel 4081: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat";
1.195 sakharuk 4082: my $temp_file = Apache::File->new('>>'.$filename);
4083: print $temp_file "$src\n";
4084: my $newsrc = $src;
4085: $newsrc =~ s/(\.gif|\.jpg|\.jpeg)$/\.eps/i;
4086: $newsrc=~s/\/home\/httpd\/html\/res//;
4087: $newsrc=~s/\/home\/([^\/]*)\/public_html\//\/$1\//;
4088: $newsrc=~s/\/\.\//\//;
4089: $newsrc=~s/\/([^\/]+)\.(ps|eps)/\//;
1.213 sakharuk 4090: if ($newsrc=~/\/home\/httpd\/lonUsers\//) {
4091: $newsrc=~s/\/home\/httpd\/lonUsers//;
4092: $newsrc=~s/\/([^\/]+)\/(\w)\/(\w)\/(\w)\//\/$1\//;
4093: }
1.239 sakharuk 4094: if ($newsrc=~/\/userfiles\//) {
4095: return ' \graphicspath{{'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4096: } else {
4097: return ' \graphicspath{{/home/httpd/prtspool'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4098: }
1.197 sakharuk 4099: }
4100:
4101: sub file_path {
4102: my $src=shift;
4103: my ($file,$path);
4104: if ($src =~ m!(.*)/([^/]*)$!) {
4105: $file = $2;
4106: $path = $1.'/';
4107: }
4108: return $file,$path;
1.126 sakharuk 4109: }
1.294 foxr 4110: # Converts a measurement in to mm from any of
4111: # the other valid LaTeX units of measure.
4112: # If the units of measure are missing from the
4113: # parameter, it is assumed to be in and returned
4114: # with mm units of measure
1.126 sakharuk 4115: sub recalc {
4116: my $argument = shift;
4117: if (not $argument=~/(mm|cm|in|pc|pt)/) {return $argument.' mm';}
1.132 sakharuk 4118: $argument=~/\s*(\d+\.?\d*)\s*(mm|cm|in|pc|pt)/;
1.126 sakharuk 4119: my $value=$1;
4120: my $units=$2;
4121: if ($units eq 'cm') {
4122: $value*=10;
4123: } elsif ($units eq 'in') {
4124: $value*=25.4;
4125: } elsif ($units eq 'pc') {
4126: $value*=(25.4*12/72.27);
4127: } elsif ($units eq 'pt') {
4128: $value*=(25.4/72.27);
4129: }
4130: return $value.' mm';
1.94 sakharuk 4131: }
1.184 sakharuk 4132:
4133: sub LATEX_length {
4134: my $garbage=shift;
1.206 sakharuk 4135: $garbage=~s/^\s+$//;
4136: $garbage=~s/^\s+(\S.*)/$1/;#space before
4137: $garbage=~s/(.*\S)\s+$/$1/;#space after
4138: $garbage=~s/(\s)+/$1/;#only one space
4139: $garbage=~s/(\\begin{([^\}]+)}|\\end{([^\}]+)})//g;#remove LaTeX \begin{...} and \end{...}
4140: $garbage=~s/(\$\_\{|\$\_|\$\^{|\$\^|\}\$)//g;#remove $_{,$_,$^{,$^,}$
4141: $garbage=~s/([^\\])\$/$1/g;#$
4142: $garbage=~s/(\\ensuremath\{\_\{|\\ensuremath\{\_|\\ensuremath\{\^{|\\ensuremath\{\^|\})//g;#remove \ensuremath{...}
4143: $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 4144: $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;
4145: $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;
4146: $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 4147: $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;
4148: $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;
4149: $garbage=~s/(\\hat{([^}]+)}|\\check{([^}]+)}|\\dot{([^}]+)}|\\breve{([^}]+)}|\\acute{([^}]+)}|\\ddot{([^}]+)}|\\grave{([^}]+)}|\\tilde{([^}]+)}|\\mathring{([^}]+)}|\\bar{([^}]+)}|\\vec{([^}]+)})/$1/g;
4150: #remove some other LaTeX command
4151: $garbage=~s|\\(\w+)\\|\\|g;
4152: $garbage=~s|\\(\w+)(\s*)|$2|g;
4153: $garbage=~s|\+|11|g;
1.184 sakharuk 4154: my $value=length($garbage);
4155: return $value;
4156: }
4157:
4158:
1.287 foxr 4159: # is_inside_of $tagstack $tag
4160: # This sub returns true if the current state of Xml processing
4161: # is inside of the tag.
4162: # Parameters:
4163: # tagstack - The tagstack from the parser.
4164: # tag - The tag (without the <>'s.).
4165: # Sample usage:
4166: # if (is_inside_of($tagstack "table")) {
4167: # # I'm in a table....
4168: # }
4169: sub is_inside_of {
4170: my ($tagstack, $tag) = @_;
4171: my @stack = @$tagstack;
4172: for (my $i = ($#stack - 1); $i >= 0; $i--) {
4173: if ($stack[$i] eq $tag) {
4174: return 1;
4175: }
4176: }
4177: return 0;
4178: }
1.184 sakharuk 4179:
1.94 sakharuk 4180:
1.1 sakharuk 4181: 1;
4182: __END__
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