Annotation of loncom/xml/londefdef.pm, revision 1.283
1.1 sakharuk 1: # The LearningOnline Network with CAPA
2: # Tags Default Definition Module
3: #
1.283 ! albertel 4: # $Id: londefdef.pm,v 1.282 2005/07/22 11:44:51 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;
1.160 sakharuk 51:
1.38 harris41 52: BEGIN {
1.15 sakharuk 53:
1.135 sakharuk 54: &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 55:
1.188 albertel 56: }
57:
58: sub initialize_londefdef {
59: $Apache::londefdef::TD_redirection=0;
60: @Apache::londefdef::table = ();
61: $Apache::londefdef::select=0;
1.243 albertel 62: undef(@Apache::londefdef::description);
63: @Apache::londefdef::DD=(0);
64: @Apache::londefdef::DT=(0);
1.244 albertel 65: @Apache::londefdef::seenDT=(0);
1.238 albertel 66: $Apache::londefdef::list_index=0;
1.3 sakharuk 67: }
1.1 sakharuk 68:
1.35 sakharuk 69: #======================= TAG SUBROUTINES =====================
1.8 sakharuk 70: #-- <output>
1.21 albertel 71: sub start_output {
1.122 albertel 72: my ($target) = @_;
73: if ($target eq 'meta') { $Apache::lonxml::metamode--; }
74: return '';
1.21 albertel 75: }
76: sub end_output {
1.122 albertel 77: my ($target) = @_;
78: if ($target eq 'meta') { $Apache::lonxml::metamode++; }
79: return '';
1.21 albertel 80: }
1.4 sakharuk 81: #-- <m> tag
1.33 albertel 82: sub start_m {
1.190 albertel 83: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 84: my $currentstring = '';
1.193 albertel 85: my $inside = &Apache::lonxml::get_all_text_unbalanced("/m",$parser);
1.191 albertel 86: if ($target eq 'web' || $target eq 'analyze') {
1.122 albertel 87: &Apache::lonxml::debug("M is starting with:$inside:");
88: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
89: if ($eval eq 'on') {
90: $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
91: #&Apache::lonxml::debug("M is evaulated to:$inside:");
92: }
1.276 albertel 93: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
94: $currentstring = &Apache::lontexconvert::converted(\$inside,$display);
1.122 albertel 95: if ($Apache::lontexconvert::errorstring) {
96: &Apache::lonxml::warning("tth error: ".
97: $Apache::lontexconvert::errorstring);
98: $Apache::lontexconvert::errorstring='';
99: }
100: #&Apache::lonxml::debug("M is ends with:$currentstring:");
1.178 albertel 101: $Apache::lonxml::post_evaluate=0;
1.122 albertel 102: } elsif ($target eq 'tex') {
1.190 albertel 103: $currentstring = $inside;
1.178 albertel 104: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
105: if ($eval eq 'on') {
106: $currentstring=&Apache::run::evaluate($currentstring,$safeeval,$$parstack[-1]);
107: }
1.122 albertel 108: if ($currentstring=~/^(\s*\\\\\s*)*$/) {$currentstring = ' \vskip 0 mm ';}
1.257 albertel 109: # detect simple math mode entry exits, and convert them
110: # to use \ensuremath
111: if ($currentstring=~/^\s*\$[^\$].*[^\$]\$\s*$/) {
112: $currentstring=~s/^\$//;
113: $currentstring=~s/\$$//;
114: $currentstring='\ensuremath{'.$currentstring.'}';
115: }
1.178 albertel 116: $Apache::lonxml::post_evaluate=0;
1.122 albertel 117: }
118: return $currentstring;
1.33 albertel 119: }
1.122 albertel 120:
1.33 albertel 121: sub end_m {
1.122 albertel 122: my ($target,$token) = @_;
123: my $currentstring = '';
1.204 albertel 124: if ($target eq 'tex') {
1.122 albertel 125: $currentstring = "";
126: }
127: return $currentstring;
1.33 albertel 128: }
1.110 albertel 129:
130: sub start_tthoption {
1.122 albertel 131: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
132: my $result;
133: if ($target eq 'web') {
134: my $inside = &Apache::lonxml::get_all_text("/tthoption",$parser);
135: $inside=~s/^\s*//;
1.267 albertel 136: if ($env{'browser.mathml'}) {
1.122 albertel 137: &tth::ttmoptions($inside);
138: } else {
139: &tth::tthoptions($inside);
140: }
141: }
142: return $result;
1.110 albertel 143: }
144:
145: sub end_tthoption {
1.122 albertel 146: my ($target,$token) = @_;
147: my $result;
148: return $result;
1.110 albertel 149: }
150:
1.181 sakharuk 151: #-- <html> tag (end tag optional)
1.100 albertel 152: sub start_html {
153: my ($target,$token) = @_;
154: my $currentstring = '';
1.267 albertel 155: my $options=$env{'course.'.$env{'request.course.id'}.'.tthoptions'};
1.196 albertel 156: &Apache::lontexconvert::init_tth();
1.269 albertel 157: if ($target eq 'web' || $target eq 'edit' || $target eq 'webgrade' ) {
1.242 albertel 158: $currentstring = &Apache::lonxml::xmlbegin();
1.100 albertel 159: } elsif ($target eq 'tex') {
1.246 albertel 160: $currentstring .= '\documentclass[letterpaper]{article}';
1.267 albertel 161: if (($env{'form.latex_type'}=~'batchmode') ||
162: (!$env{'request.role.adv'})) {$currentstring .='\batchmode';}
1.217 sakharuk 163: $currentstring .= '\newcommand{\keephidden}[1]{}'.
164: '\renewcommand{\deg}{$^{\circ}$}'.
165: '\usepackage{longtable}'.
166: '\usepackage{textcomp}'.
167: '\usepackage{makeidx}'.
168: '\usepackage[dvips]{graphicx}'.
1.248 foxr 169: '\usepackage{picins}'.
1.217 sakharuk 170: '\usepackage{epsfig}'.
171: '\usepackage{calc}'.
172: '\usepackage{amsmath}'.
173: '\usepackage{amssymb}'.
174: '\usepackage{amsfonts}'.
175: '\usepackage{amsthm}'.
176: '\usepackage{amscd}'.
177: '\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}}'.
178: '\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 179: }
180: return $currentstring;
181: }
1.122 albertel 182:
183: sub end_html {
1.232 sakharuk 184: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 185: my $currentstring = '';
186: if ($target eq 'web') {
1.259 albertel 187: $currentstring = '</html>';
1.122 albertel 188: }
189: return $currentstring;
190: }
191:
1.181 sakharuk 192: #-- <head> tag (end tag optional)
1.122 albertel 193: sub start_head {
194: my ($target,$token) = @_;
195: my $currentstring = '';
196: if ($target eq 'web') {
1.242 albertel 197: $currentstring = $token->[4].&Apache::lonxml::fontsettings();
1.122 albertel 198: }
199: return $currentstring;
200: }
201:
202: sub end_head {
203: my ($target,$token) = @_;
204: my $currentstring = '';
1.267 albertel 205: if ($target eq 'web' && $env{'request.state'} eq 'published') {
1.122 albertel 206: $currentstring = &Apache::lonmenu::registerurl(undef,$target).
207: $token->[2];
208: }
209: return $currentstring;
210: }
211:
1.181 sakharuk 212: #-- <map> tag (end tag required)
1.122 albertel 213: sub start_map {
214: my ($target,$token) = @_;
215: my $currentstring = '';
216: if ($target eq 'web') {
217: $currentstring = $token->[4];
218: }
219: return $currentstring;
220: }
221:
222: sub end_map {
223: my ($target,$token) = @_;
224: my $currentstring = '';
225: if ($target eq 'web') {
226: $currentstring = $token->[2];
227: }
228: return $currentstring;
229: }
230:
1.181 sakharuk 231: #-- <select> tag (end tag required)
1.122 albertel 232: sub start_select {
233: my ($target,$token) = @_;
234: my $currentstring = '';
235: if ($target eq 'web') {
236: $currentstring = $token->[4];
1.181 sakharuk 237: } elsif ($target eq 'tex') {
238: $Apache::londefdef::select=0;
239: }
1.122 albertel 240: return $currentstring;
241: }
242:
243: sub end_select {
244: my ($target,$token) = @_;
245: my $currentstring = '';
246: if ($target eq 'web') {
247: $currentstring = $token->[2];
248: }
249: return $currentstring;
250: }
251:
1.181 sakharuk 252: #-- <option> tag (end tag optional)
1.122 albertel 253: sub start_option {
1.181 sakharuk 254: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 255: my $currentstring = '';
256: if ($target eq 'web') {
257: $currentstring = $token->[4];
1.181 sakharuk 258: } elsif ($target eq 'tex') {
259: $Apache::londefdef::select++;
260: if ($Apache::londefdef::select == 1) {
261: $currentstring='\noindent\fbox{'.&Apache::lonxml::get_param('value',$parstack,$safeeval).'}\keephidden{';
262: } else {
263: $currentstring='\keephidden{';
264: }
265: }
1.122 albertel 266: return $currentstring;
267: }
268:
269: sub end_option {
270: my ($target,$token) = @_;
271: my $currentstring = '';
272: if ($target eq 'web') {
273: $currentstring = $token->[2];
1.181 sakharuk 274: } elsif ($target eq 'tex') {
275: $currentstring='}';
276: }
1.122 albertel 277: return $currentstring;
278: }
279:
1.181 sakharuk 280: #-- <input> tag (end tag forbidden)
1.122 albertel 281: sub start_input {
282: my ($target,$token) = @_;
283: my $currentstring = '';
284: if ($target eq 'web') {
285: $currentstring = $token->[4];
286: }
287: return $currentstring;
288: }
289:
290: sub end_input {
291: my ($target,$token) = @_;
292: my $currentstring = '';
293: if ($target eq 'web') {
294: $currentstring = $token->[2];
295: }
296: return $currentstring;
297: }
298:
1.181 sakharuk 299: #-- <textarea> tag (end tag required)
1.122 albertel 300: sub start_textarea {
301: my ($target,$token) = @_;
302: my $currentstring = '';
303: if ($target eq 'web') {
304: $currentstring = $token->[4];
305: }
306: return $currentstring;
307: }
308:
309: sub end_textarea {
310: my ($target,$token) = @_;
311: my $currentstring = '';
312: if ($target eq 'web') {
313: $currentstring = $token->[2];
314: }
315: return $currentstring;
316: }
317:
1.181 sakharuk 318: #-- <form> tag (end tag required)
1.122 albertel 319: sub start_form {
320: my ($target,$token) = @_;
321: my $currentstring = '';
322: if ($target eq 'web') {
323: $currentstring = $token->[4];
324: }
325: return $currentstring;
326: }
327:
328: sub end_form {
329: my ($target,$token) = @_;
330: my $currentstring = '';
331: if ($target eq 'web') {
332: $currentstring = $token->[2];
333: }
334: return $currentstring;
335: }
336:
1.181 sakharuk 337: #-- <title> tag (end tag required)
1.122 albertel 338: sub start_title {
339: my ($target,$token) = @_;
340: my $currentstring = '';
341: if ($target eq 'web') {
342: $currentstring = $token->[4];
343: } elsif ($target eq 'tex') {
1.166 sakharuk 344: $currentstring .= '\keephidden{Title of the document: '
1.122 albertel 345: }
346: if ($target eq 'meta') {
347: $currentstring='<title>';
1.185 albertel 348: &start_output($target);
1.122 albertel 349: }
350: return $currentstring;
351: }
352:
353: sub end_title {
354: my ($target,$token) = @_;
355: my $currentstring = '';
356: if ($target eq 'web') {
357: $currentstring = $token->[2];
358: } elsif ($target eq 'tex') {
359: $currentstring .= '}';
360: }
361: if ($target eq 'meta') {
1.185 albertel 362: &end_output($target);
1.122 albertel 363: $currentstring='</title>';
364: }
365: return $currentstring;
366: }
367:
1.181 sakharuk 368: #-- <meta> tag (end tag forbidden)
1.122 albertel 369: sub start_meta {
370: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
371: my $currentstring = '';
372: if ($target eq 'web') {
373: my $args='';
374: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
375: if ($args eq '') {
376: &Apache::lonxml::get_all_text("/meta",$parser);
377: } else {
378: $currentstring = $token->[4];
1.1 sakharuk 379: }
1.135 sakharuk 380: } elsif ($target eq 'meta') {
1.122 albertel 381: unless (&Apache::lonxml::get_param
382: ('http-equiv',$parstack,$safeeval,undef,1)) {
383: my $name=$token->[2]->{'name'};
384: $name=~tr/A-Z/a-z/;
385: $name=~s/\s/\_/gs;
386: $name=~s/\W//gs;
387: if ($name) {
1.154 www 388: $currentstring='<'.$name;
389: my $display=&Apache::lonxml::get_param
390: ('display',$parstack,$safeeval,undef,1);
391: if ($display) {
392: $display=~s/\"/\'/g;
393: $currentstring.=' display="'.$display.'"';
394: }
395: $currentstring.='>'.
1.122 albertel 396: &Apache::lonxml::get_param
397: ('content',$parstack,$safeeval,undef,1).
1.135 sakharuk 398: '</'.$name.'>';
1.1 sakharuk 399: }
1.154 www 400: my $display=&Apache::lonxml::get_param
401: ('display',$parstack,$safeeval,undef,1);
402: if ($display) {
1.204 albertel 403: $display=&HTML::Entities::encode($display,'<>&"');
1.154 www 404: $currentstring.='<'.$name.'.display>'.$display.
405: '</'.$name.'.display>';
406: }
1.1 sakharuk 407: }
1.135 sakharuk 408: } elsif ($target eq 'tex') {
1.151 sakharuk 409: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
410: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
411: if ((not defined $content) && (not defined $name)) {
412: &Apache::lonxml::startredirection();
413: }
1.122 albertel 414: }
415: return $currentstring;
416: }
417:
418: sub end_meta {
1.165 albertel 419: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 420: my $currentstring = '';
421: if ($target eq 'web') {
422: my $args='';
423: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
424: if ($args ne '') {
1.121 www 425: $currentstring = $token->[4];
1.122 albertel 426: }
1.135 sakharuk 427: } elsif ($target eq 'tex') {
1.165 albertel 428: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
429: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
1.164 albertel 430: if ((not defined $content) && (not defined $name)) {
1.169 albertel 431: &Apache::lonxml::endredirection();
1.164 albertel 432: }
1.135 sakharuk 433: }
1.122 albertel 434: return $currentstring;
435: }
436:
1.121 www 437: # accessrule
1.122 albertel 438: sub start_accessrule {
439: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
440: my $currentstring = '';
441: my $eff=&Apache::lonxml::get_param
442: ('effect',$parstack,$safeeval,undef,1);
443: my $realm=&Apache::lonxml::get_param
444: ('realm',$parstack,$safeeval,undef,1);
1.123 www 445: my $role=&Apache::lonxml::get_param
446: ('role',$parstack,$safeeval,undef,1);
447: $realm=~s/\s+//g;
448: $realm=~s/\//\_/g;
449: $realm=~s/^\_//;
450: $realm=~s/\W/\;/g;
451: $role=~s/\s+//g;
452: $role=~s/\//\_/g;
453: $role=~s/\W/\;/g;
1.122 albertel 454: if ($target eq 'web') {
455: my $args='';
456: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
457: if ($args eq '') {
458: &Apache::lonxml::get_all_text("/accessrule",$parser);
459: } else {
460: $currentstring = $token->[4];
461: }
462: }
463: if ($target eq 'meta') {
1.123 www 464: $currentstring='<rule>'.$eff.':'.$realm.':'.$role.'</rule>';
1.122 albertel 465: }
466: return $currentstring;
467: }
468:
469: sub end_accessrule {
470: my ($target,$token,$tagstack,$parstack,$parser) = @_;
471: my $currentstring = '';
472: if ($target eq 'web') {
473: my $args='';
474: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
475: if ($args ne '') {
476: $currentstring = $token->[4];
477: }
478: }
479: return $currentstring;
480: }
481:
1.181 sakharuk 482: #-- <body> tag (end tag required)
1.122 albertel 483: sub start_body {
484: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
485: my $currentstring = '';
1.244 albertel 486:
1.122 albertel 487: if ($target eq 'web') {
1.170 albertel 488: if ($Apache::lonhomework::parsing_a_problem) {
489: &Apache::lonxml::warning("<body> tag found inside of <problem> tag this can cause problems.");
490: return '';
491: }
1.180 albertel 492: if (!$Apache::lonxml::registered &&
1.267 albertel 493: $env{'request.state'} eq 'published') {
1.122 albertel 494: $currentstring.='<head>'.
495: &Apache::lonmenu::registerurl(undef,$target).'</head>';
496: }
1.155 www 497: # Accessibility
1.267 albertel 498: if ($env{'browser.imagesuppress'} eq 'on') {
1.155 www 499: delete($token->[2]->{'background'});
500: }
1.267 albertel 501: if ($env{'browser.fontenhance'} eq 'on') {
1.155 www 502: my $style='';
503: foreach my $key (keys(%{$token->[2]})) {
504: if ($key =~ /^style$/i) {
505: $style.=$token->[2]->{$key}.';';
506: delete($token->[2]->{$key});
507: }
508: }
509: $token->[2]->{'style'}=$style.'; font-size: x-large;';
510: }
1.267 albertel 511: if ($env{'browser.blackwhite'} eq 'on') {
1.155 www 512: delete($token->[2]->{'font'});
513: delete($token->[2]->{'link'});
514: delete($token->[2]->{'alink'});
515: delete($token->[2]->{'vlink'});
516: delete($token->[2]->{'bgcolor'});
517: delete($token->[2]->{'background'});
518: }
519: # Overload loads
1.122 albertel 520: my $onLoad='';
521: foreach my $key (keys(%{$token->[2]})) {
522: if ($key =~ /^onload$/i) {
523: $onLoad.=$token->[2]->{$key}.';';
524: delete($token->[2]->{$key});
1.121 www 525: }
1.122 albertel 526: }
527: $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad;
528: my $onUnload='';
529: foreach my $key (keys(%{$token->[2]})) {
530: if ($key =~ /^onunload$/i) {
531: $onUnload.=$token->[2]->{$key}.';';
532: delete($token->[2]->{$key});
1.121 www 533: }
534: }
1.122 albertel 535: $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().
536: ';'.$onUnload;
537:
1.278 www 538: $currentstring .= '<'.$token->[1];
1.122 albertel 539: foreach (keys %{$token->[2]}) {
540: $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
541: }
1.278 www 542: $currentstring.='>';
1.267 albertel 543: if ($env{'request.state'} ne 'published') {
1.278 www 544: if ($env{'environment.remote'} eq 'off') {
545: $currentstring.=
546: &Apache::lonmenu::constspaceform().
547: &Apache::lonmenu::menubuttons(1,'web',1);
548: }
1.122 albertel 549: $currentstring.=(<<EDITBUTTON);
1.278 www 550: <form method="post">
551: <input type="submit" name="editmode" accesskey="e" value="Edit" />
552: </form>
1.40 albertel 553: EDITBUTTON
1.122 albertel 554: } else {
555: $currentstring.=&Apache::lonmenu::menubuttons(undef,$target,1);
1.1 sakharuk 556: }
1.201 albertel 557: $currentstring.=&Apache::lonxml::message_location();
1.122 albertel 558: } elsif ($target eq 'tex') {
559: $currentstring = '\begin{document}';
560: }
561: return $currentstring;
562: }
563:
564: sub end_body {
1.259 albertel 565: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 566: my $currentstring = &end_p(); # Close off unclosed <p>
1.122 albertel 567: if ($target eq 'web') {
1.277 foxr 568: $currentstring .= &Apache::lonxml::xmlend($target,$parser);
1.122 albertel 569: } elsif ($target eq 'tex') {
1.277 foxr 570: $currentstring .= '\strut\newline\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\newline\noindent \end{document}';
1.122 albertel 571: }
572: return $currentstring;
573: }
574:
1.181 sakharuk 575: #-- <center> tag (end tag required)
1.122 albertel 576: sub start_center {
577: my ($target,$token) = @_;
1.279 foxr 578: my $currentstring = &end_p(); # Close off any prior para.
1.122 albertel 579: if ($target eq 'web') {
1.277 foxr 580: $currentstring .= $token->[4];
1.122 albertel 581: } elsif ($target eq 'tex') {
1.277 foxr 582: $currentstring .= '\begin{center}';
1.144 sakharuk 583: }
1.122 albertel 584: return $currentstring;
585: }
586:
587: sub end_center {
588: my ($target,$token) = @_;
589: my $currentstring = '';
590: if ($target eq 'web') {
591: $currentstring = $token->[2];
592: } elsif ($target eq 'tex') {
593: $currentstring = '\end{center}';
1.144 sakharuk 594: }
1.122 albertel 595: return $currentstring;
596: }
597:
1.181 sakharuk 598: #-- <b> tag (end tag required)
1.279 foxr 599: # NOTE: In TeX mode disables internal <p>
1.122 albertel 600: sub start_b {
601: my ($target,$token) = @_;
602: my $currentstring = '';
603: if ($target eq 'web') {
604: $currentstring = $token->[4];
605: } elsif ($target eq 'tex') {
1.279 foxr 606: &disable_para();
607: $currentstring .= '\textbf{';
1.122 albertel 608: }
609: return $currentstring;
610: }
611:
612: sub end_b {
613: my ($target,$token) = @_;
614: my $currentstring = '';
615: if ($target eq 'web') {
616: $currentstring = $token->[2];
617: } elsif ($target eq 'tex') {
1.279 foxr 618: &enable_para();
619: $currentstring = '}';
1.122 albertel 620: }
621: return $currentstring;
622: }
1.35 sakharuk 623:
1.181 sakharuk 624: #-- <strong> tag (end tag required)
1.279 foxr 625: # NOTE: in TeX mode disables internal <p>
1.122 albertel 626: sub start_strong {
627: my ($target,$token) = @_;
628: my $currentstring = '';
629: if ($target eq 'web') {
630: $currentstring = $token->[4];
631: } elsif ($target eq 'tex') {
1.279 foxr 632: &disable_para();
1.122 albertel 633: $currentstring = '\textbf{';
634: }
635: return $currentstring;
636: }
637:
638: sub end_strong {
639: my ($target,$token) = @_;
640: my $currentstring = '';
1.182 sakharuk 641: if ($target eq 'web') {
1.122 albertel 642: $currentstring = $token->[2];
643: } elsif ($target eq 'tex') {
1.279 foxr 644: &enable_para();
1.122 albertel 645: $currentstring = '}';
1.144 sakharuk 646: }
1.122 albertel 647: return $currentstring;
648: }
649:
1.181 sakharuk 650: #-- <h1> tag (end tag required)
1.122 albertel 651: sub start_h1 {
1.125 sakharuk 652: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 653: my $currentstring = &end_p(); # Close off any prior para.
1.122 albertel 654: if ($target eq 'web') {
655: $currentstring .= $token->[4];
656: } elsif ($target eq 'tex') {
1.125 sakharuk 657: my $pre;
1.199 albertel 658: my $align=lc(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1));
1.212 sakharuk 659: if ($align eq 'center') {
1.125 sakharuk 660: $pre='\begin{center}';
661: } elsif ($align eq 'left') {
662: $pre='\rlap{';
663: } elsif ($align eq 'right') {
664: $pre=' \hfill \llap{';
665: }
666: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
667: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 668: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 669: } elsif ($target eq 'meta') {
1.277 foxr 670: $currentstring.='<subject>';
1.185 albertel 671: &start_output($target);
1.122 albertel 672: }
673: return $currentstring;
674: }
675:
676: sub end_h1 {
1.125 sakharuk 677: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 678: my $currentstring = '';
679: if ($target eq 'web') {
680: $currentstring .= $token->[2];
681: } elsif ($target eq 'tex') {
1.212 sakharuk 682: my $post='\vskip 0 mm ';
1.125 sakharuk 683: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 684: if ($align eq 'center') {
1.125 sakharuk 685: $post='\end{center}';
686: } elsif ($align eq 'left') {
687: $post='} \hfill'.'\vskip 0 mm ';
688: } elsif ($align eq 'right') {
689: $post='}'.'\vskip 0 mm ';
690: }
691: $currentstring .= '}}'.$post;
1.122 albertel 692: } elsif ($target eq 'meta') {
1.185 albertel 693: &end_output($target);
1.122 albertel 694: $currentstring='</subject>';
695: }
696: return $currentstring;
697: }
698:
1.35 sakharuk 699: #-- <h2> tag
1.122 albertel 700: sub start_h2 {
1.125 sakharuk 701: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 702: my $currentstring = &end_p(); # Close off any prior para.
1.122 albertel 703: if ($target eq 'web') {
704: $currentstring .= $token->[4];
705: } elsif ($target eq 'tex') {
1.125 sakharuk 706: my $pre;
707: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 708: if ($align eq 'center') {
1.125 sakharuk 709: $pre='\begin{center}';
710: } elsif ($align eq 'left') {
711: $pre='\rlap{';
712: } elsif ($align eq 'right') {
713: $pre=' \hfill \llap{';
714: }
715: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
716: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 717: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 718: }
719: return $currentstring;
720: }
721:
722: sub end_h2 {
1.125 sakharuk 723: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 724: my $currentstring = '';
725: if ($target eq 'web') {
726: $currentstring .= $token->[2];
727: } elsif ($target eq 'tex') {
1.212 sakharuk 728: my $post='\vskip 0 mm ';
1.125 sakharuk 729: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 730: if ($align eq 'center') {
1.125 sakharuk 731: $post='\end{center}';
732: } elsif ($align eq 'left') {
733: $post='} \hfill'.'\vskip 0 mm ';
734: } elsif ($align eq 'right') {
735: $post='}'.'\vskip 0 mm ';
736: }
737: $currentstring .= '}}'.$post;
1.122 albertel 738: }
739: return $currentstring;
740: }
741:
1.35 sakharuk 742: #-- <h3> tag
1.122 albertel 743: sub start_h3 {
1.125 sakharuk 744: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 745: my $currentstring = &end_p(); # Close off any prior para.
1.122 albertel 746: if ($target eq 'web') {
747: $currentstring .= $token->[4];
748: } elsif ($target eq 'tex') {
1.125 sakharuk 749: my $pre;
750: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 751: if ($align eq 'center') {
1.125 sakharuk 752: $pre='\begin{center}';
753: } elsif ($align eq 'left') {
754: $pre='\rlap{';
755: } elsif ($align eq 'right') {
756: $pre=' \hfill \llap{';
757: }
758: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
759: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 760: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 761: }
762: return $currentstring;
763: }
764:
765: sub end_h3 {
1.125 sakharuk 766: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 767: my $currentstring = '';
768: if ($target eq 'web') {
769: $currentstring .= $token->[2];
770: } elsif ($target eq 'tex') {
1.212 sakharuk 771: my $post='\vskip 0 mm ';
1.125 sakharuk 772: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 773: if ($align eq 'center') {
1.125 sakharuk 774: $post='\end{center}';
775: } elsif ($align eq 'left') {
776: $post='} \hfill'.'\vskip 0 mm ';
777: } elsif ($align eq 'right') {
778: $post='}'.'\vskip 0 mm ';
779: }
780: $currentstring .= '}}'.$post;
1.122 albertel 781: }
782: return $currentstring;
783: }
784:
1.35 sakharuk 785: #-- <h4> tag
1.122 albertel 786: sub start_h4 {
1.125 sakharuk 787: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 788: my $currentstring = &end_p(); # Close off any prior para.
1.122 albertel 789: if ($target eq 'web') {
790: $currentstring .= $token->[4];
791: } elsif ($target eq 'tex') {
1.125 sakharuk 792: my $pre;
793: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 794: if ($align eq 'center') {
1.125 sakharuk 795: $pre='\begin{center}';
796: } elsif ($align eq 'left') {
797: $pre='\rlap{';
798: } elsif ($align eq 'right') {
799: $pre=' \hfill \llap{';
800: }
801: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
802: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 803: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 804: }
805: return $currentstring;
806: }
807:
808: sub end_h4 {
1.125 sakharuk 809: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 810: my $currentstring = '';
811: if ($target eq 'web') {
812: $currentstring .= $token->[2];
813: } elsif ($target eq 'tex') {
1.212 sakharuk 814: my $post='\vskip 0 mm ';
1.125 sakharuk 815: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 816: if ($align eq 'center') {
1.125 sakharuk 817: $post='\end{center}';
818: } elsif ($align eq 'left') {
819: $post='} \hfill'.'\vskip 0 mm ';
820: } elsif ($align eq 'right') {
821: $post='}'.'\vskip 0 mm ';
822: }
823: $currentstring .= '}}'.$post;
1.122 albertel 824: }
825: return $currentstring;
826: }
827:
1.35 sakharuk 828: #-- <h5> tag
1.122 albertel 829: sub start_h5 {
1.125 sakharuk 830: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 831: my $currentstring = &end_p(); # Close off any prior paras.
1.122 albertel 832: if ($target eq 'web') {
833: $currentstring .= $token->[4];
834: } elsif ($target eq 'tex') {
1.125 sakharuk 835: my $pre;
836: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 837: if ($align eq 'center') {
1.125 sakharuk 838: $pre='\begin{center}';
839: } elsif ($align eq 'left') {
840: $pre='\rlap{';
841: } elsif ($align eq 'right') {
842: $pre=' \hfill \llap{';
843: }
844: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
845: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 846: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 847: }
848: return $currentstring;
849: }
850:
851: sub end_h5 {
1.125 sakharuk 852: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 853: my $currentstring = '';
854: if ($target eq 'web') {
855: $currentstring .= $token->[2];
856: } elsif ($target eq 'tex') {
1.212 sakharuk 857: my $post='\vskip 0 mm ';
1.125 sakharuk 858: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 859: if ($align eq 'center') {
1.125 sakharuk 860: $post='\end{center}';
861: } elsif ($align eq 'left') {
862: $post='} \hfill'.'\vskip 0 mm ';
863: } elsif ($align eq 'right') {
864: $post='}'.'\vskip 0 mm ';
865: }
866: $currentstring .= '}}'.$post;
1.122 albertel 867: }
868: return $currentstring;
869: }
870:
1.35 sakharuk 871: #-- <h6> tag
1.122 albertel 872: sub start_h6 {
1.125 sakharuk 873: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 874: my $currentstring = &end_p(); # Close off any prior paras.
1.122 albertel 875: if ($target eq 'web') {
876: $currentstring .= $token->[4];
877: } elsif ($target eq 'tex') {
1.125 sakharuk 878: my $pre;
879: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 880: if ($align eq 'center') {
1.125 sakharuk 881: $pre='\begin{center}';
882: } elsif ($align eq 'left') {
883: $pre='\rlap{';
884: } elsif ($align eq 'right') {
885: $pre=' \hfill \llap{';
886: }
887: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
888: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 889: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 890: }
891: return $currentstring;
892: }
893:
894: sub end_h6 {
1.125 sakharuk 895: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 896: my $currentstring = '';
897: if ($target eq 'web') {
898: $currentstring .= $token->[2];
899: } elsif ($target eq 'tex') {
1.212 sakharuk 900: my $post='\vskip 0 mm ';
1.125 sakharuk 901: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 902: if ($align eq 'center') {
1.125 sakharuk 903: $post='\end{center}';
904: } elsif ($align eq 'left') {
905: $post='} \hfill'.'\vskip 0 mm ';
906: } elsif ($align eq 'right') {
907: $post='}'.'\vskip 0 mm ';
908: }
909: $currentstring .= '}}'.$post;
1.122 albertel 910: }
911: return $currentstring;
912: }
913:
1.181 sakharuk 914: #--- <cite> tag (end tag required)
1.122 albertel 915: sub start_cite {
916: my ($target,$token) = @_;
917: my $currentstring = '';
918: if ($target eq 'web') {
919: $currentstring .= $token->[4];
920: } elsif ($target eq 'tex') {
1.179 sakharuk 921: $currentstring .= '\textit{';
1.144 sakharuk 922: }
1.122 albertel 923: return $currentstring;
924: }
925:
926: sub end_cite {
927: my ($target,$token) = @_;
928: my $currentstring = '';
929: if ($target eq 'web') {
930: $currentstring .= $token->[2];
931: } elsif ($target eq 'tex') {
1.179 sakharuk 932: $currentstring .= '}';
1.144 sakharuk 933: }
1.122 albertel 934: return $currentstring;
935: }
936:
1.181 sakharuk 937: #-- <i> tag (end tag required)
1.122 albertel 938: sub start_i {
939: my ($target,$token) = @_;
940: my $currentstring = '';
941: if ($target eq 'web') {
942: $currentstring .= $token->[4];
943: } elsif ($target eq 'tex') {
944: $currentstring .= '\textit{';
1.144 sakharuk 945: }
1.122 albertel 946: return $currentstring;
947: }
948:
949: sub end_i {
950: my ($target,$token) = @_;
951: my $currentstring = '';
952: if ($target eq 'web') {
953: $currentstring .= $token->[2];
954: } elsif ($target eq 'tex') {
955: $currentstring .= '}';
956: }
957: return $currentstring;
958: }
959:
1.181 sakharuk 960: #-- <address> tag (end tag required)
1.122 albertel 961: sub start_address {
962: my ($target,$token) = @_;
963: my $currentstring = '';
964: if ($target eq 'web') {
965: $currentstring .= $token->[4];
966: } elsif ($target eq 'tex') {
1.179 sakharuk 967: $currentstring .= '\textit{';
1.144 sakharuk 968: }
1.122 albertel 969: return $currentstring;
970: }
971:
972: sub end_address {
973: my ($target,$token) = @_;
974: my $currentstring = '';
975: if ($target eq 'web') {
976: $currentstring .= $token->[2];
977: } elsif ($target eq 'tex') {
1.179 sakharuk 978: $currentstring .= '}';
1.122 albertel 979: }
980: return $currentstring;
981: }
982:
1.181 sakharuk 983: #-- <dfn> tag (end tag required)
1.122 albertel 984: sub start_dfn {
985: my ($target,$token) = @_;
986: my $currentstring = '';
987: if ($target eq 'web') {
988: $currentstring .= $token->[4];
989: } elsif ($target eq 'tex') {
1.179 sakharuk 990: $currentstring .= '\textit{';
1.122 albertel 991: }
992: return $currentstring;
993: }
994:
995: sub end_dfn {
996: my ($target,$token) = @_;
997: my $currentstring = '';
998: if ($target eq 'web') {
999: $currentstring .= $token->[2];
1000: } elsif ($target eq 'tex') {
1.179 sakharuk 1001: $currentstring .= '}';
1.144 sakharuk 1002: }
1.122 albertel 1003: return $currentstring;
1004: }
1005:
1.181 sakharuk 1006: #-- <tt> tag (end tag required)
1.122 albertel 1007: sub start_tt {
1008: my ($target,$token) = @_;
1009: my $currentstring = '';
1010: if ($target eq 'web') {
1011: $currentstring .= $token->[4];
1012: } elsif ($target eq 'tex') {
1013: $currentstring .= '\texttt{';
1.144 sakharuk 1014: }
1.122 albertel 1015: return $currentstring;
1016: }
1017:
1018: sub end_tt {
1019: my ($target,$token) = @_;
1020: my $currentstring = '';
1021: if ($target eq 'web') {
1022: $currentstring .= $token->[2];
1023: } elsif ($target eq 'tex') {
1024: $currentstring .= '}';
1025: }
1026: return $currentstring;
1027: }
1028:
1.181 sakharuk 1029: #-- <kbd> tag (end tag required)
1.122 albertel 1030: sub start_kbd {
1031: my ($target,$token) = @_;
1032: my $currentstring = '';
1033: if ($target eq 'web') {
1034: $currentstring .= $token->[4];
1035: } elsif ($target eq 'tex') {
1.179 sakharuk 1036: $currentstring .= '\texttt{';
1.144 sakharuk 1037: }
1.122 albertel 1038: return $currentstring;
1039: }
1040:
1041: sub end_kbd {
1042: my ($target,$token) = @_;
1043: my $currentstring = '';
1044: if ($target eq 'web') {
1045: $currentstring .= $token->[2];
1046: } elsif ($target eq 'tex') {
1.179 sakharuk 1047: $currentstring .= '}';
1.144 sakharuk 1048: }
1.122 albertel 1049: return $currentstring;
1050: }
1051:
1.181 sakharuk 1052: #-- <code> tag (end tag required)
1.122 albertel 1053: sub start_code {
1054: my ($target,$token) = @_;
1055: my $currentstring = '';
1056: if ($target eq 'web') {
1057: $currentstring .= $token->[4];
1058: } elsif ($target eq 'tex') {
1059: $currentstring .= '\texttt{';
1060: }
1061: return $currentstring;
1062: }
1063:
1064: sub end_code {
1065: my ($target,$token) = @_;
1066: my $currentstring = '';
1067: if ($target eq 'web') {
1068: $currentstring .= $token->[2];
1069: } elsif ($target eq 'tex') {
1070: $currentstring .= '}';
1071: }
1072: return $currentstring;
1073: }
1074:
1.181 sakharuk 1075: #-- <em> tag (end tag required)
1.122 albertel 1076: sub start_em {
1077: my ($target,$token) = @_;
1078: my $currentstring = '';
1079: if ($target eq 'web') {
1080: $currentstring .= $token->[4];
1081: } elsif ($target eq 'tex') {
1082: $currentstring .= '\emph{';
1.144 sakharuk 1083: }
1.122 albertel 1084: return $currentstring;
1085: }
1086:
1087: sub end_em {
1088: my ($target,$token) = @_;
1089: my $currentstring = '';
1090: if ($target eq 'web') {
1091: $currentstring .= $token->[2];
1092: } elsif ($target eq 'tex') {
1093: $currentstring .= '}';
1.144 sakharuk 1094: }
1.122 albertel 1095: return $currentstring;
1096: }
1097:
1.181 sakharuk 1098: #-- <q> tag (end tag required)
1.122 albertel 1099: sub start_q {
1100: my ($target,$token) = @_;
1101: my $currentstring = '';
1102: if ($target eq 'web') {
1103: $currentstring .= $token->[4];
1104: } elsif ($target eq 'tex') {
1.179 sakharuk 1105: $currentstring .= '\emph{';
1.122 albertel 1106: }
1107: return $currentstring;
1108: }
1109:
1110: sub end_q {
1111: my ($target,$token) = @_;
1112: my $currentstring = '';
1113: if ($target eq 'web') {
1114: $currentstring .= $token->[2];
1115: } elsif ($target eq 'tex') {
1.179 sakharuk 1116: $currentstring .= '}';
1.144 sakharuk 1117: }
1.122 albertel 1118: return $currentstring;
1119: }
1120:
1.277 foxr 1121: # <p> is a bit strange since it does not require a closing </p>
1122: # However in latex, we must often output closing stuff to end
1123: # environments and {}'s etc. Therefore we do all the work
1124: # of figuring out the ending strings in the start tag processing,
1125: # and provide a mechanism to output the stop text external
1126: # to tag processing.
1127: #
1128: {
1129:
1130: my $closing_string = ''; # String required to close <p>
1131:
1.279 foxr 1132: # Some tags are <p> fragile meaning that <p> inside of them
1133: # does not work within TeX mode. This is managed via the
1134: # counter below:
1135: #
1136:
1137: my $para_disabled = 0;
1138:
1139: sub disable_para {
1140: $para_disabled++;
1141: }
1142: sub enable_para {
1143: $para_disabled--;
1144: }
1145:
1146:
1.181 sakharuk 1147: #-- <p> tag (end tag optional)
1.198 sakharuk 1148: #optional attribute - align="center|left|right"
1.122 albertel 1149: sub start_p {
1.157 sakharuk 1150: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1151: my $currentstring = '';
1.122 albertel 1152: if ($target eq 'web') {
1.279 foxr 1153: $currentstring .= &end_p(); # close off prior para if in progress.
1.122 albertel 1154: $currentstring .= $token->[4];
1.279 foxr 1155: if (! ($currentstring =~ /\//)) {
1156: $closing_string = '</p>'; # Deal correctly with <p /> e.g.
1157: }
1158: } elsif ($target eq 'tex' && !$para_disabled) {
1159: $currentstring .= &end_p(); # close off prior para if in progress.
1.198 sakharuk 1160: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1161: if ($align eq 'center') {
1.277 foxr 1162: $currentstring .='\begin{center}\par';
1163: $closing_string = '\end{center}';
1.198 sakharuk 1164: } elsif ($align eq 'right') {
1.277 foxr 1165: $currentstring.='\makebox['.$env{'form.textwidth'}.']{\hfill\llap{';
1166: $closing_string= '}}';
1.198 sakharuk 1167: } elsif ($align eq 'left') {
1.277 foxr 1168: $currentstring.='\noindent\makebox['.$env{'form.textwidth'}.']{\rlap{';
1169: $closing_string = '}\hfill}';
1.216 matthew 1170: } else {
1.277 foxr 1171: $currentstring.='\par ';
1.279 foxr 1172: $closing_string = '\strut\\\\\strut ';
1.216 matthew 1173: }
1.277 foxr 1174:
1.144 sakharuk 1175: }
1.122 albertel 1176: return $currentstring;
1177: }
1.277 foxr 1178: #
1179: # End paragraph processing just requires that we output the
1180: # closing string that was saved and blank it.
1181: sub end_p {
1.279 foxr 1182: # Note only 'tex' mode uses disable_para and enable_para
1183: # so we don't need to know the target in the check below:
1184:
1185: if (!$para_disabled) {
1186: my $current_string = $closing_string;
1187: $closing_string = ''; # Not in a para anymore.
1188: return $current_string;
1189: } else {
1190: return '';
1191: }
1.122 albertel 1192:
1193: }
1.277 foxr 1194: }
1.181 sakharuk 1195: #-- <br> tag (end tag forbidden)
1.122 albertel 1196: sub start_br {
1197: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1198: my $currentstring = '';
1199: if ($target eq 'web') {
1200: $currentstring .= $token->[4];
1201: } elsif ($target eq 'tex') {
1.227 sakharuk 1202: my @tempo=@$tagstack;
1.229 sakharuk 1203: my $signal=0;
1.227 sakharuk 1204: for (my $i=$#tempo;$i>=0;$i--) {
1205: if (($tempo[$i] eq 'b') || ($tempo[$i] eq 'strong') ||
1.230 sakharuk 1206: ($tempo[$i] eq 'ol') || ($tempo[$i] eq 'ul') ||
1207: ($tempo[$i] eq 'td') || ($tempo[$i] eq 'th')) {
1.229 sakharuk 1208: $signal=1;
1.227 sakharuk 1209: last;
1210: }
1211: }
1.229 sakharuk 1212: if ($signal) {
1.219 sakharuk 1213: $currentstring .= ' \vskip 0 mm ';
1214: } elsif ($$tagstack[-2] ne 'sub' && $$tagstack[-2] ne 'sup') {
1215: $currentstring .= '\strut \\\\ \strut ';
1.1 sakharuk 1216: }
1.144 sakharuk 1217: }
1.122 albertel 1218: return $currentstring;
1219: }
1220:
1221: sub end_br {
1222: my ($target,$token) = @_;
1223: my $currentstring = '';
1224: if ($target eq 'web') {
1225: $currentstring .= $token->[2];
1226: }
1227: return $currentstring;
1228: }
1229:
1.181 sakharuk 1230: #-- <big> tag (end tag required)
1.122 albertel 1231: sub start_big {
1232: my ($target,$token) = @_;
1233: my $currentstring = '';
1234: if ($target eq 'web') {
1235: $currentstring .= $token->[4];
1236: } elsif ($target eq 'tex') {
1.137 sakharuk 1237: $currentstring .= '{\large ';
1.144 sakharuk 1238: }
1.122 albertel 1239: return $currentstring;
1240: }
1241:
1242: sub end_big {
1243: my ($target,$token) = @_;
1244: my $currentstring = '';
1245: if ($target eq 'web') {
1246: $currentstring .= $token->[2];
1247: } elsif ($target eq 'tex') {
1248: $currentstring .= '}';
1249: }
1250: return $currentstring;
1251: }
1252:
1.181 sakharuk 1253: #-- <small> tag (end tag required)
1.122 albertel 1254: sub start_small {
1255: my ($target,$token) = @_;
1256: my $currentstring = '';
1257: if ($target eq 'web') {
1258: $currentstring .= $token->[4];
1259: } elsif ($target eq 'tex') {
1260: $currentstring .= '{\footnotesize ';
1.144 sakharuk 1261: }
1.122 albertel 1262: return $currentstring;
1263: }
1264:
1265: sub end_small {
1266: my ($target,$token) = @_;
1267: my $currentstring = '';
1268: if ($target eq 'web') {
1269: $currentstring .= $token->[2];
1270: } elsif ($target eq 'tex') {
1271: $currentstring .= '}';
1272: }
1273: return $currentstring;
1274: }
1275:
1.181 sakharuk 1276: #-- <basefont> tag (end tag forbidden)
1.122 albertel 1277: sub start_basefont {
1.126 sakharuk 1278: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.122 albertel 1279: my $currentstring = '';
1280: if ($target eq 'web') {
1281: $currentstring = $token->[4];
1.126 sakharuk 1282: } elsif ($target eq 'tex') {
1283: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1284: if (defined $basesize) {
1285: $currentstring = '{\\'.$basesize.' ';
1286: }
1287: }
1.122 albertel 1288: return $currentstring;
1289: }
1290:
1291: sub end_basefont {
1.126 sakharuk 1292: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1293: my $currentstring = '';
1294: if ($target eq 'web') {
1295: $currentstring = $token->[4];
1.126 sakharuk 1296: } elsif ($target eq 'tex') {
1297: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1298: if (defined $basesize) {
1299: $currentstring = '}';
1300: }
1301: }
1.122 albertel 1302: return $currentstring;
1303: }
1304:
1.181 sakharuk 1305: #-- <font> tag (end tag required)
1.122 albertel 1306: sub start_font {
1307: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1308: my $currentstring = '';
1309: if ($target eq 'web') {
1310: my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
1.204 albertel 1311: if ($face!~/symbol/i) {
1.267 albertel 1312: if (($env{'browser.fontenhance'} eq 'on') ||
1313: ($env{'browser.blackwhite'} eq 'on')) { return ''; }
1.155 www 1314: }
1.122 albertel 1315: $currentstring = $token->[4];
1.126 sakharuk 1316: } elsif ($target eq 'tex') {
1317: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1318: if (defined $fontsize) {
1319: $currentstring = '{\\'.$fontsize.' ';
1320: }
1321: }
1.122 albertel 1322: return $currentstring;
1323: }
1324:
1325: sub end_font {
1326: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1327: my $currentstring = '';
1328: if ($target eq 'web') {
1329: $currentstring = $token->[2];
1.126 sakharuk 1330: } elsif ($target eq 'tex') {
1331: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1332: if (defined $fontsize) {
1333: $currentstring = '}';
1334: }
1335: }
1.122 albertel 1336: return $currentstring;
1337: }
1338:
1.181 sakharuk 1339: #-- <strike> tag (end tag required)
1.122 albertel 1340: sub start_strike {
1341: my ($target,$token) = @_;
1342: my $currentstring = '';
1343: if ($target eq 'web') {
1344: $currentstring .= $token->[4];
1345: } elsif ($target eq 'tex') {
1346: &Apache::lonxml::startredirection();
1347: }
1348: return $currentstring;
1349: }
1350:
1351: sub end_strike {
1352: my ($target,$token) = @_;
1353: my $currentstring = '';
1354: if ($target eq 'web') {
1355: $currentstring .= $token->[2];
1356: } elsif ($target eq 'tex') {
1357: $currentstring=&Apache::lonxml::endredirection();
1358: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1359: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1360: $currentstring=~s/(\S)\s*$/$1\}/;
1361: }
1362: return $currentstring;
1363: }
1364:
1.181 sakharuk 1365: #-- <s> tag (end tag required)
1.122 albertel 1366: sub start_s {
1367: my ($target,$token) = @_;
1368: my $currentstring = '';
1369: if ($target eq 'web') {
1370: $currentstring .= $token->[4];
1371: } elsif ($target eq 'tex') {
1372: &Apache::lonxml::startredirection();
1373: }
1374: return $currentstring;
1375: }
1376:
1377: sub end_s {
1378: my ($target,$token) = @_;
1379: my $currentstring = '';
1380: if ($target eq 'web') {
1381: $currentstring .= $token->[2];
1382: } elsif ($target eq 'tex') {
1383: $currentstring=&Apache::lonxml::endredirection();
1384: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1385: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1386: $currentstring=~s/(\S)\s*$/$1\}/;
1387: }
1388: return $currentstring;
1389: }
1390:
1.181 sakharuk 1391: #-- <sub> tag (end tag required)
1.122 albertel 1392: sub start_sub {
1393: my ($target,$token) = @_;
1394: my $currentstring = '';
1395: if ($target eq 'web') {
1396: $currentstring .= $token->[4];
1397: } elsif ($target eq 'tex') {
1.202 sakharuk 1398: $currentstring .= '\ensuremath{_{';
1.122 albertel 1399: }
1400: return $currentstring;
1401: }
1402:
1403: sub end_sub {
1404: my ($target,$token) = @_;
1405: my $currentstring = '';
1406: if ($target eq 'web') {
1407: $currentstring .= $token->[2];
1408: } elsif ($target eq 'tex') {
1.202 sakharuk 1409: $currentstring .= '}}';
1.122 albertel 1410: }
1411: return $currentstring;
1412: }
1413:
1.181 sakharuk 1414: #-- <sup> tag (end tag required)
1.122 albertel 1415: sub start_sup {
1416: my ($target,$token) = @_;
1417: my $currentstring = '';
1418: if ($target eq 'web') {
1419: $currentstring .= $token->[4];
1420: } elsif ($target eq 'tex') {
1.202 sakharuk 1421: $currentstring .= '\ensuremath{^{';
1.122 albertel 1422: }
1423: return $currentstring;
1424: }
1425:
1426: sub end_sup {
1427: my ($target,$token) = @_;
1428: my $currentstring = '';
1429: if ($target eq 'web') {
1430: $currentstring .= $token->[2];
1431: } elsif ($target eq 'tex') {
1.202 sakharuk 1432: $currentstring .= '}}';
1.122 albertel 1433: }
1434: return $currentstring;
1435: }
1436:
1.181 sakharuk 1437: #-- <hr> tag (end tag forbidden)
1.122 albertel 1438: sub start_hr {
1.124 sakharuk 1439: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1440: my $currentstring = &end_p(); # End enclosing para.
1.122 albertel 1441: if ($target eq 'web') {
1442: $currentstring .= $token->[4];
1443: } elsif ($target eq 'tex') {
1.149 sakharuk 1444: my $LaTeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1.124 sakharuk 1445: if (defined $LaTeXwidth) {
1446: if ($LaTeXwidth=~/^%/) {
1447: substr($LaTeXwidth,0,1)='';
1448: $LaTeXwidth=($LaTeXwidth/100).'\textwidth';
1449: }
1450: } else {
1.148 sakharuk 1451: $LaTeXwidth ='0.9\textwidth';
1.124 sakharuk 1452: }
1453: my ($pre,$post);
1454: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1455: if (($align eq 'center') || (not defined $align)) {
1456: $pre=''; $post='';
1457: } elsif ($align eq 'left') {
1458: $pre='\rlap{'; $post='} \hfill';
1459: } elsif ($align eq 'right') {
1460: $pre=' \hfill \llap{'; $post='}';
1461: }
1.148 sakharuk 1462: $currentstring .= ' \vskip 0 mm \noindent\makebox['.$LaTeXwidth.']{'.$pre.'\makebox['.
1.124 sakharuk 1463: $LaTeXwidth.'][b]{\hrulefill}'.$post.'}\vskip 0 mm ';
1.122 albertel 1464: }
1465: return $currentstring;
1466: }
1467:
1468: sub end_hr {
1469: my ($target,$token) = @_;
1470: my $currentstring = '';
1471: if ($target eq 'web') {
1472: $currentstring .= $token->[2];
1.148 sakharuk 1473: }
1.122 albertel 1474: return $currentstring;
1475: }
1476:
1.181 sakharuk 1477: #-- <div> tag (end tag required)
1.280 foxr 1478: {
1479:
1480: # Since div can be nested, the stack below is used
1481: # in 'tex' mode to store the ending strings
1482: # for the div stack.
1483:
1484: my @div_end_stack;
1485:
1.122 albertel 1486: sub start_div {
1.280 foxr 1487: my ($target,$token, $tagstack, $parstack, $parser, $safeeval) = @_;
1.279 foxr 1488: my $currentstring = &end_p(); # Close enclosing para.
1.122 albertel 1489: if ($target eq 'web') {
1490: $currentstring .= $token->[4];
1491: }
1.280 foxr 1492: if ($target eq 'tex') {
1493: # 4 possible alignments: left, right, center, and -missing-.
1494:
1495: my $endstring = '';
1496:
1497: my $align = lc(&Apache::lonxml::get_param('align', $parstack,
1498: $safeeval, undef, 1));
1499: if ($align eq 'center') {
1500: $currentstring .= '\begin{center}';
1501: $endstring = '\end{center}';
1502: }
1503: elsif ($align eq 'right') {
1504: $currentstring .= '\begin{flushright}';
1505: $endstring .= '\end{flushright}';
1506: } elsif ($align eq 'left') {
1507: $currentstring .= '\begin{flushleft}';
1508: $endstring = '\end{flushleft}';
1509: } else {
1510:
1511: }
1512: $currentstring .= "\n"; # For human readability.
1513: $endstring = "\n$endstring\n"; # For human readability
1514: push(@div_end_stack, $endstring);
1515: }
1.122 albertel 1516: return $currentstring;
1517: }
1518:
1519: sub end_div {
1520: my ($target,$token) = @_;
1521: my $currentstring = '';
1522: if ($target eq 'web') {
1523: $currentstring .= $token->[2];
1.280 foxr 1524: }
1525: if ($target eq 'tex') {
1526: my $endstring = pop @div_end_stack;
1527: $currentstring .= $endstring;
1528: }
1.122 albertel 1529: return $currentstring;
1530: }
1.280 foxr 1531: }
1.122 albertel 1532:
1.181 sakharuk 1533: #-- <a> tag (end tag required)
1.122 albertel 1534: sub start_a {
1.149 sakharuk 1535: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1536: my $currentstring = '';
1537: if ($target eq 'web') {
1.250 albertel 1538: my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
1539: undef,1);
1540: $currentstring=&Apache::lonenc::encrypt_ref($token,{'href'=>$href});
1.122 albertel 1541: } elsif ($target eq 'tex') {
1.149 sakharuk 1542: my $a=&Apache::lonxml::get_param('href',$parstack,$safeeval,undef,1);
1.161 sakharuk 1543: my $b=&Apache::lonxml::get_param('name',$parstack,$safeeval,undef,1);
1544: if ($a=~/\S/) {
1545: $a=~s/([^\\])%/$1\\\%/g;
1546: $currentstring .= '\ref{URI: '.$a.'}';
1547: } elsif ($b=~/\S/) {
1548: $currentstring .= '\ref{Anchor: '.$b.'}';
1549: } else {
1550: $currentstring.='';
1551: }
1.122 albertel 1552: }
1553: return $currentstring;
1554: }
1555:
1556: sub end_a {
1.168 albertel 1557: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1558: my $currentstring = '';
1559: if ($target eq 'web') {
1560: $currentstring .= $token->[2];
1561: }
1562: return $currentstring;
1563: }
1564:
1.181 sakharuk 1565: #-- <li> tag (end tag optional)
1.122 albertel 1566: sub start_li {
1.168 albertel 1567: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1568: my $currentstring = '';
1569: if ($target eq 'web') {
1570: $currentstring = $token->[4];
1571: } elsif ($target eq 'tex') {
1.237 sakharuk 1572: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1573: my $value=&Apache::lonxml::get_param('value',$parstack,$safeeval,undef,0);
1.238 albertel 1574: #FIXME need to support types i and I
1575: if ($type=~/disc/) {
1576: $currentstring .= ' \item[$\bullet$] ';
1577: } elsif ($type=~/circle/) {
1578: $currentstring .= ' \item[$\circ$] ';
1.146 sakharuk 1579: } elsif ($type=~/square/) {
1.238 albertel 1580: $currentstring .= ' \item[$\diamond$] ';
1581: } elsif ($type eq '1') {
1582: $currentstring .= ' \item['.($Apache::londefdef::list_index+1).'.]';
1.237 sakharuk 1583: } elsif ($type eq 'A') {
1.238 albertel 1584: $currentstring .= ' \item['.('A'..'Z')[$Apache::londefdef::list_index].'.]';
1.237 sakharuk 1585: } elsif ($type eq 'a') {
1.238 albertel 1586: $currentstring .= ' \item['.('a'..'z')[$Apache::londefdef::list_index].'.]';
1.237 sakharuk 1587: } elsif ($value ne '') {
1588: $currentstring .= ' \item['.$value.'] ';
1.122 albertel 1589: } else {
1.146 sakharuk 1590: $currentstring .= ' \item ';
1.122 albertel 1591: }
1.238 albertel 1592: $Apache::londefdef::list_index++;
1593: }
1.122 albertel 1594: return $currentstring;
1595: }
1596:
1597: sub end_li {
1598: my ($target,$token) = @_;
1.279 foxr 1599: my $currentstring = &end_p(); # In case there's a <p> in the <li>
1.122 albertel 1600: if ($target eq 'web') {
1.277 foxr 1601: $currentstring .= $token->[2];
1.122 albertel 1602: }
1603: return $currentstring;
1604: }
1605:
1.181 sakharuk 1606: #-- <u> tag (end tag required)
1.122 albertel 1607: sub start_u {
1608: my ($target,$token) = @_;
1609: my $currentstring = '';
1610: if ($target eq 'web') {
1611: $currentstring .= $token->[4];
1612: } elsif ($target eq 'tex') {
1613: &Apache::lonxml::startredirection();
1614: }
1615: return $currentstring;
1616: }
1617:
1618: sub end_u {
1619: my ($target,$token) = @_;
1620: my $currentstring = '';
1621: if ($target eq 'web') {
1622: $currentstring .= $token->[2];
1623: } elsif ($target eq 'tex') {
1624: $currentstring=&Apache::lonxml::endredirection();
1625: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1626: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1627: $currentstring=~s/(\S)\s*$/$1\}/;
1628: }
1629: return $currentstring;
1630: }
1631:
1.181 sakharuk 1632: #-- <ul> tag (end tag required)
1.122 albertel 1633: sub start_ul {
1.125 sakharuk 1634: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1635: my $currentstring = &end_p(); # Close off enclosing list.
1.122 albertel 1636: if ($target eq 'web') {
1.277 foxr 1637: $currentstring .= $token->[4];
1.122 albertel 1638: } elsif ($target eq 'tex') {
1.125 sakharuk 1639: my $TeXtype=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1.238 albertel 1640: $Apache::londefdef::list_index=0;
1.125 sakharuk 1641: if ($TeXtype eq 'disc') {
1.222 sakharuk 1642: $currentstring .= '\renewcommand{\labelitemi}{$\bullet$}'.
1643: '\renewcommand{\labelitemii}{$\bullet$}'.
1644: '\renewcommand{\labelitemiii}{$\bullet$}'.
1645: '\renewcommand{\labelitemiv}{$\bullet$}';
1.125 sakharuk 1646: } elsif ($TeXtype eq 'circle') {
1.222 sakharuk 1647: $currentstring .= '\renewcommand{\labelitemi}{$\circ$}'.
1648: '\renewcommand{\labelitemii}{$\circ$}'.
1649: '\renewcommand{\labelitemiii}{$\circ$}'.
1650: '\renewcommand{\labelitemiv}{$\circ$}';
1.125 sakharuk 1651: } elsif ($TeXtype eq 'square') {
1.222 sakharuk 1652: $currentstring .= '\renewcommand{\labelitemi}{$\diamond$}'.
1653: '\renewcommand{\labelitemii}{$\diamond$}'.
1654: '\renewcommand{\labelitemiii}{$\diamond$}'.
1655: '\renewcommand{\labelitemiv}{$\diamond$}';
1.125 sakharuk 1656: }
1.222 sakharuk 1657: $currentstring .= '\strut \begin{itemize}';
1.122 albertel 1658: }
1659: return $currentstring;
1660: }
1661:
1662: sub end_ul {
1663: my ($target,$token) = @_;
1664: my $currentstring = '';
1665: if ($target eq 'web') {
1666: $currentstring = $token->[2];
1667: } elsif ($target eq 'tex') {
1.222 sakharuk 1668: $currentstring = '\end{itemize} \renewcommand{\labelitemi}{$\bullet$}'.
1669: '\renewcommand{\labelitemii}{$\bullet$}'.
1670: '\renewcommand{\labelitemiii}{$\bullet$}'.
1671: '\renewcommand{\labelitemiv}{$\bullet$}\strut ';
1.122 albertel 1672: }
1673: return $currentstring;
1674: }
1675:
1.181 sakharuk 1676: #-- <menu> tag (end tag required)
1.122 albertel 1677: sub start_menu {
1678: my ($target,$token) = @_;
1679: my $currentstring = '';
1680: if ($target eq 'web') {
1681: $currentstring = $token->[4];
1682: } elsif ($target eq 'tex') {
1683: $currentstring = " \\begin{itemize} ";
1684: }
1685: return $currentstring;
1686: }
1687:
1688: sub end_menu {
1689: my ($target,$token) = @_;
1690: my $currentstring = '';
1691: if ($target eq 'web') {
1692: $currentstring = $token->[2];
1693: } elsif ($target eq 'tex') {
1694: $currentstring = " \\end{itemize}";
1695: }
1696: return $currentstring;
1697: }
1698:
1.181 sakharuk 1699: #-- <dir> tag (end tag required)
1.122 albertel 1700: sub start_dir {
1701: my ($target,$token) = @_;
1.279 foxr 1702: my $currentstring = &end_p(); # In case there's a <p> prior to the list.
1.122 albertel 1703: if ($target eq 'web') {
1.277 foxr 1704: $currentstring .= $token->[4];
1.122 albertel 1705: } elsif ($target eq 'tex') {
1.277 foxr 1706: $currentstring .= " \\begin{itemize} ";
1.122 albertel 1707: }
1708: return $currentstring;
1709: }
1710:
1711: sub end_dir {
1712: my ($target,$token) = @_;
1713: my $currentstring = '';
1714: if ($target eq 'web') {
1715: $currentstring = $token->[2];
1716: } elsif ($target eq 'tex') {
1717: $currentstring = " \\end{itemize}";
1718: }
1719: return $currentstring;
1720: }
1721:
1.181 sakharuk 1722: #-- <ol> tag (end tag required)
1.122 albertel 1723: sub start_ol {
1.125 sakharuk 1724: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1725: my $currentstring = &end_p(); # In case there's a <p> prior to the list.
1.122 albertel 1726: if ($target eq 'web') {
1.277 foxr 1727: $currentstring .= $token->[4];
1.122 albertel 1728: } elsif ($target eq 'tex') {
1.238 albertel 1729: $Apache::londefdef::list_index=0;
1.125 sakharuk 1730: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1731: if ($type eq '1') {
1.222 sakharuk 1732: $currentstring .= '\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1733: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1734: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1735: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}';
1.125 sakharuk 1736: } elsif ($type eq 'A') {
1.222 sakharuk 1737: $currentstring .= '\renewcommand{\labelenumi}{\Alph{enumi}.}'.
1738: '\renewcommand{\labelenumii}{\Alph{enumii}.}'.
1739: '\renewcommand{\labelenumiii}{\Alph{enumiii}.}'.
1740: '\renewcommand{\labelenumiv}{\Alph{enumiv}.}';
1.125 sakharuk 1741: } elsif ($type eq 'a') {
1.222 sakharuk 1742: $currentstring .= '\renewcommand{\labelenumi}{\alph{enumi}.}'.
1743: '\renewcommand{\labelenumii}{\alph{enumii}.}'.
1744: '\renewcommand{\labelenumiii}{\alph{enumiii}.}'.
1745: '\renewcommand{\labelenumiv}{\alph{enumiv}.}';
1.125 sakharuk 1746: } elsif ($type eq 'i') {
1.222 sakharuk 1747: $currentstring .= '\renewcommand{\labelenumi}{\roman{enumi}.}'.
1748: '\renewcommand{\labelenumii}{\roman{enumii}.}'.
1749: '\renewcommand{\labelenumiii}{\roman{enumiii}.}'.
1750: '\renewcommand{\labelenumiv}{\roman{enumiv}.}';
1.125 sakharuk 1751: } elsif ($type eq 'I') {
1.222 sakharuk 1752: $currentstring .= '\renewcommand{\labelenumi}{\Roman{enumi}.}'.
1753: '\renewcommand{\labelenumii}{\Roman{enumii}.}'.
1754: '\renewcommand{\labelenumiii}{\Roman{enumiii}.}'.
1755: '\renewcommand{\labelenumiv}{\Roman{enumiv}.}';
1.125 sakharuk 1756: }
1.222 sakharuk 1757: $currentstring .= '\strut \begin{enumerate}';
1.122 albertel 1758: }
1759: return $currentstring;
1760: }
1761:
1762: sub end_ol {
1763: my ($target,$token) = @_;
1764: my $currentstring = '';
1765: if ($target eq 'web') {
1766: $currentstring = $token->[2];
1767: } elsif ($target eq 'tex') {
1.222 sakharuk 1768: $currentstring = '\end{enumerate}\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1769: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1770: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1771: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}\strut ';
1.122 albertel 1772: }
1773: return $currentstring;
1774: }
1775:
1.181 sakharuk 1776: #-- <dl> tag (end tag required)
1.122 albertel 1777: sub start_dl {
1778: my ($target,$token) = @_;
1.279 foxr 1779: my $currentstring = &end_p(); # In case there's a <p> unclosed prior to the list.
1.122 albertel 1780: if ($target eq 'web') {
1.277 foxr 1781: $currentstring .= $token->[4];
1.122 albertel 1782: } elsif ($target eq 'tex') {
1.277 foxr 1783: $currentstring .= '\begin{description}';
1.243 albertel 1784: $Apache::londefdef::DL++;
1785: push(@Apache::londefdef::description,[]);
1786: $Apache::londefdef::DD[$Apache::londefdef::DL]=0;
1787: $Apache::londefdef::DT[$Apache::londefdef::DL]=0;
1.244 albertel 1788: $Apache::londefdef::seenDT[$Apache::londefdef::DL]=0;
1.122 albertel 1789: }
1790: return $currentstring;
1791: }
1792:
1793: sub end_dl {
1.174 sakharuk 1794: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1795: my $currentstring = '';
1796: if ($target eq 'web') {
1797: $currentstring = $token->[2];
1798: } elsif ($target eq 'tex') {
1.243 albertel 1799: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1800: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
1801: foreach my $element (@{$Apache::londefdef::description[-1]}) {
1.174 sakharuk 1802: $currentstring.=' '.$element.' ';
1803: }
1.243 albertel 1804: pop(@Apache::londefdef::description);
1.174 sakharuk 1805: $currentstring.='\end{description}';
1.243 albertel 1806: delete($Apache::londefdef::DD[$Apache::londefdef::DL]);
1807: delete($Apache::londefdef::DT[$Apache::londefdef::DL]);
1.244 albertel 1808: delete($Apache::londefdef::seenDT[$Apache::londefdef::DL]);
1.243 albertel 1809: $Apache::londefdef::DL--;
1.122 albertel 1810: }
1811: return $currentstring;
1812: }
1813:
1.172 sakharuk 1814: #-- <dt> tag (end tag optional)
1.122 albertel 1815: sub start_dt {
1.172 sakharuk 1816: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1817: my $currentstring='';
1.122 albertel 1818: if ($target eq 'web') {
1819: $currentstring = $token->[4];
1820: } elsif ($target eq 'tex') {
1.243 albertel 1821: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1822: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
1.174 sakharuk 1823: &Apache::lonxml::startredirection();
1.243 albertel 1824: $Apache::londefdef::DT[-1]++;
1.244 albertel 1825: $Apache::londefdef::seenDT[-1]=1;
1.122 albertel 1826: }
1827: return $currentstring;
1828: }
1829:
1830: sub end_dt {
1.172 sakharuk 1831: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1832: my $currentstring = '';
1833: if ($target eq 'web') {
1834: $currentstring = $token->[2];
1835: } elsif ($target eq 'tex') {
1.243 albertel 1836: if ($Apache::londefdef::DT[-1]) {
1837: my $data=&item_cleanup();
1.244 albertel 1838: push(@{$Apache::londefdef::description[-1]},'\item['.$data.'] \strut \vskip 0mm');
1.243 albertel 1839: $Apache::londefdef::DT[-1]--;
1840: }
1.122 albertel 1841: }
1842: return $currentstring;
1843: }
1844:
1.173 sakharuk 1845: sub item_cleanup {
1.174 sakharuk 1846: my $item=&Apache::lonxml::endredirection();
1.173 sakharuk 1847: $item=~s/\\begin{center}//g;
1848: $item=~s/\\end{center}//g;
1849: return $item;
1850: }
1851:
1.181 sakharuk 1852: #-- <dd> tag (end tag optional)
1.122 albertel 1853: sub start_dd {
1.147 sakharuk 1854: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1855: my $currentstring = '';
1856: if ($target eq 'web') {
1857: $currentstring = $token->[4];
1.147 sakharuk 1858: } elsif ($target eq 'tex') {
1.243 albertel 1859: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1860: if ($Apache::londefdef::DD[-1]) { &end_dd(@_);}
1.244 albertel 1861: if (!$Apache::londefdef::seenDT[-1]) {
1862: push(@{$Apache::londefdef::description[-1]},'\item[\strut] \strut \vskip 0mm ');
1863: }
1.243 albertel 1864: push(@{$Apache::londefdef::description[-1]},'');
1865: $Apache::londefdef::description[-1]->[-1].=' \strut ';
1866: $Apache::londefdef::DD[-1]++;
1.174 sakharuk 1867: &Apache::lonxml::startredirection();
1.122 albertel 1868: }
1869: return $currentstring;
1870: }
1871:
1872: sub end_dd {
1.174 sakharuk 1873: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1874: my $currentstring = '';
1875: if ($target eq 'web') {
1876: $currentstring = $token->[2];
1.174 sakharuk 1877: } elsif ($target eq 'tex') {
1.243 albertel 1878: $Apache::londefdef::description[-1]->[-1].=
1879: &Apache::lonxml::endredirection().' \vskip 0mm ';
1880: $Apache::londefdef::DD[-1]--;
1.174 sakharuk 1881: }
1.122 albertel 1882: return $currentstring;
1883: }
1884:
1.181 sakharuk 1885: #-- <table> tag (end tag required)
1.277 foxr 1886: # <table> also ends any prior <p> that is not closed.
1887: # but, unless I allow <p>'s to nest, that's the
1888: # only way I could think of to allow <p> in
1889: # <tr> <th> bodies
1890: #
1.206 sakharuk 1891: #list of supported attributes: border,width,TeXwidth
1.91 sakharuk 1892: sub start_table {
1893: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 foxr 1894: my $textwidth = '';
1.279 foxr 1895: my $currentstring = &end_p();
1.91 sakharuk 1896: if ($target eq 'web') {
1.277 foxr 1897: $currentstring .= $token->[4];
1.91 sakharuk 1898: } elsif ($target eq 'tex') {
1899: my $aa = {};
1900: push @Apache::londefdef::table, $aa;
1901: $Apache::londefdef::table[-1]{'row_number'} = -1;
1.222 sakharuk 1902: #maximum table's width (default coincides with text line length)
1.206 sakharuk 1903: if ($#Apache::londefdef::table==0) {
1.267 albertel 1904: $textwidth=&recalc($env{'form.textwidth'}); #result is always in mm
1.206 sakharuk 1905: $textwidth=~/(\d+\.?\d*)/;
1906: $textwidth=0.95*$1; #accounts "internal" LaTeX space for table frame
1907: } else {
1908: if ($Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}]=~/\d/) {
1909: #the maximum width of nested table is determined by LATeX width of parent cell
1910: $textwidth=$Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}];
1911: } else {
1912: #try to use all space not used before (minus 5% for LaTeX table internal) - rather silly
1.228 sakharuk 1913: $textwidth=$Apache::londefdef::table[-2]{'width'};
1.206 sakharuk 1914: for (my $i=0;$i<$Apache::londefdef::table[-2]{'counter_columns'};$i++) {
1915: $textwidth=$textwidth-$Apache::londefdef::table[-2]{'TeXlen'}[0][$i];
1916: }
1917: }
1918: }
1.126 sakharuk 1919: my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1920: if (not defined $TeXwidth) {
1921: my $htmlwidth = &Apache::lonxml::get_param('width',$parstack,$safeeval,undef,1);
1922: if ($htmlwidth=~/%/) {
1.203 sakharuk 1923: $Apache::londefdef::table[-1]{'percent'}=1;
1.126 sakharuk 1924: $htmlwidth=~/(\d+)/;
1.203 sakharuk 1925: $Apache::londefdef::table[-1]{'width'}=$1*$textwidth/100;;
1.126 sakharuk 1926: } else {
1927: $Apache::londefdef::table[-1]{'width'}=$textwidth;
1928: }
1929: } elsif ($TeXwidth=~/%/) {
1.203 sakharuk 1930: $Apache::londefdef::table[-1]{'percent'}=1;
1.126 sakharuk 1931: $TeXwidth=~/(\d+)/;
1.206 sakharuk 1932: $Apache::londefdef::table[-1]{'width'}=$1*$textwidth/100;
1.126 sakharuk 1933: } else {
1.222 sakharuk 1934: $Apache::londefdef::table[-1]{'forcetablewidth'}=1;
1.206 sakharuk 1935: $Apache::londefdef::table[-1]{'width'}=$TeXwidth;
1.126 sakharuk 1936: }
1937: #table's border
1.206 sakharuk 1938: my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval);
1.208 sakharuk 1939: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
1.91 sakharuk 1940: unless (defined $border) { $border = 0; }
1941: if ($border) {
1942: $Apache::londefdef::table[-1]{'hinc'} = '\hline ';
1943: $Apache::londefdef::table[-1]{'vinc'} = '&';
1944: $Apache::londefdef::table[-1]{'vvinc'} = '|';
1945: } else {
1946: $Apache::londefdef::table[-1]{'hinc'} = '';
1947: $Apache::londefdef::table[-1]{'vinc'} = '&';
1948: $Apache::londefdef::table[-1]{'vvinc'} = '';
1949: }
1.206 sakharuk 1950: if ($#Apache::londefdef::table==0) {
1.281 foxr 1951: # Note that \newline seems to destroy the alignment envs.
1952: # $Apache::londefdef::table[-1]{'output'}='\strut\newline\strut\setlength{\tabcolsep}{1 mm}';
1953: $Apache::londefdef::table[-1]{'output'}='\strut'.'\\\\'."\n".'\strut\setlength{\tabcolsep}{1 mm}';
1.206 sakharuk 1954: }
1955: $Apache::londefdef::table[-1]{'output'}.=' \noindent \begin{tabular} ';
1956: $Apache::londefdef::table[-1]{'TeXlen'}=[];
1957: $Apache::londefdef::table[-1]{'objectlen'}=[];
1.229 sakharuk 1958: $Apache::londefdef::table[-1]{'objectsignal'}=[];
1.206 sakharuk 1959: $Apache::londefdef::table[-1]{'maxlen'}=[];
1960: $Apache::londefdef::table[-1]{'minlen'}=[];
1961: $Apache::londefdef::table[-1]{'content'}=[];
1962: $Apache::londefdef::table[-1]{'align'}=[];
1.277 foxr 1963: $currentstring.='\keephidden{NEW TABLE ENTRY}';
1.206 sakharuk 1964: }
1.91 sakharuk 1965: return $currentstring;
1966: }
1.122 albertel 1967:
1968: sub end_table {
1969: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1970: my $currentstring = '';
1971: if ($target eq 'web') {
1972: $currentstring = $token->[2];
1973: } elsif ($target eq 'tex') {
1974: my $inmemory = '';
1975: my $output = '';
1.206 sakharuk 1976: my $WARNING='';
1977: #width of columns from TeXwidth attributes
1978: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1979: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
1980: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]<$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn]) {
1981: $Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]=$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn];
1982: }
1983: }
1984: }
1985: #free space and number of empty columns
1986: my ($available_space,$empty_columns)=($Apache::londefdef::table[-1]{'width'},0);
1.228 sakharuk 1987: if ($#Apache::londefdef::table ne 0) {$available_space=0.9*$available_space;}
1.206 sakharuk 1988: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
1989: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]==0) {
1990: $empty_columns++;
1991: } else {
1992: $available_space=$available_space-$Apache::londefdef::table[-1]{'TeXlen'}[0][$jn];
1993: }
1994: }
1995: #boundaries for contents columns
1996: my @min_len=();#columns can not be narrower
1997: my @max_len=();#maximum length of column
1998: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
1999: my ($localmin,$localmax)=(0,0);
2000: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2001: if ($localmin<$Apache::londefdef::table[-1]{'minlen'}[$in][$jn]) {
2002: $localmin=$Apache::londefdef::table[-1]{'minlen'}[$in][$jn];
2003: }
2004: if ($localmax<$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn]) {
2005: $localmax=$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn];
2006: }
2007: }
2008: push @min_len, $localmin;
2009: push @max_len, $localmax;
1.122 albertel 2010: }
1.206 sakharuk 2011: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2012: my $localmin=0,;
2013: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2014: if ($localmin<$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn]) {
2015: $localmin=$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn];
2016: }
2017: }
1.229 sakharuk 2018: if ($max_len[$jn]<$localmin) {
2019: $max_len[$jn]=$localmin;
2020: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
2021: }#object size is bigger
2022: if ($min_len[$jn]<$localmin) {
2023: $min_len[$jn]=$localmin;
2024: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
2025: }#object size is bigger
1.206 sakharuk 2026: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]!=0) {
2027: $min_len[$jn]=0;
2028: $max_len[$jn]=0;
2029: }
2030: }
2031: #final adjustment of column width
2032: my @fwidth=@{$Apache::londefdef::table[-1]{'TeXlen'}[0]};#final width array
2033: my @adjust=();
2034: #step 1. adjustment by maximum value
2035: my $space_neeeded=0;
2036: for (my $jn=0;$jn<=$#max_len;$jn++) {
2037: $space_neeeded=$space_neeeded+$max_len[$jn];
2038: }
2039: if ($space_neeeded<=$available_space) {
2040: for (my $jn=0;$jn<=$#max_len;$jn++) {
2041: if ($fwidth[$jn]==0) {
2042: $fwidth[$jn]=$max_len[$jn];
1.53 sakharuk 2043: }
1.51 sakharuk 2044: }
1.206 sakharuk 2045: } else {
2046: #step 2. adjustment by minimum value (estimation)
2047: $space_neeeded=0;
2048: for (my $jn=0;$jn<=$#min_len;$jn++) {
2049: $space_neeeded+=$min_len[$jn];
2050: }
2051: if ($space_neeeded>$available_space) {
2052: $WARNING=' \textbf{NOT ENOUGH SPACE FOR TABLE} ';
2053: for (my $jn=0;$jn<=$#max_len;$jn++) {
2054: if ($fwidth[$jn]==0) {
2055: $fwidth[$jn]=$min_len[$jn];
2056: }
2057: }
1.229 sakharuk 2058: #check if we have objects which can be scaled
2059: my $how_many_to_scale=0;
2060: my @to_scale=();
2061: for (my $jn=0;$jn<=$#max_len;$jn++) {
2062: if ($Apache::londefdef::table[-1]{'objectsignal'}[$jn] eq '1') {
2063: $how_many_to_scale++;
2064: push @to_scale, $jn;
2065: }
2066: }
2067: if ($how_many_to_scale>0) {
2068: my $space_to_adjust=($space_neeeded-$available_space)/$how_many_to_scale;
2069: foreach my $jn (@to_scale) {
2070: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2071: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/;
2072: if ($1 ne '') {
2073: my $current_length=&recalc($1);
2074: $current_length=~/(\d+\.?\d*)/;
2075: $current_length=$current_length-$space_to_adjust;
2076: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/width=$current_length mm/;
2077: }
2078: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/\[(\d+\.?\d*)\s*mm\]/;
2079: if ($1 ne '') {
2080: my $current_length=$1;
2081: $current_length=$current_length-$space_to_adjust;
2082: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/\[(\d+\.?\d*)\s*mm\]/\[$current_length mm\]/;
2083: }
2084: }
2085: $fwidth[$jn]=$fwidth[$jn]-$space_to_adjust;
2086: }
2087: }
1.206 sakharuk 2088: } else {
2089: #step 3. adjustment over minimal + corrections
2090: my $enlarge_coef=$available_space/$space_neeeded;
2091: my $acsessive=0;
2092: for (my $jn=0;$jn<=$#min_len;$jn++) {
2093: $adjust[$jn]=$min_len[$jn]*$enlarge_coef;
2094: if ($adjust[$jn]>$max_len[$jn]) {
2095: $fwidth[$jn]=$max_len[$jn];
2096: $acsessive=$acsessive+$adjust[$jn]-$max_len[$jn];
2097: $adjust[$jn]=0;
2098: }
2099: }
2100: if ($acsessive>0) {
2101: #we have an excess of space and can redistribute it
2102: my $notempty_columns=0;
2103: for (my $jn=0;$jn<=$#min_len;$jn++) {
2104: if ($adjust[$jn]!=0) {
2105: $notempty_columns++;
2106: }
2107: }
2108: my $per_column=$acsessive/$notempty_columns;
2109: for (my $jn=0;$jn<=$#min_len;$jn++) {
2110: if ($adjust[$jn]!=0) {
2111: $adjust[$jn]+=$per_column;
2112: $fwidth[$jn]=$adjust[$jn];
2113: }
1.223 sakharuk 2114: }
2115: } else {
2116: for (my $jn=0;$jn<=$#min_len;$jn++) {
2117: $fwidth[$jn]=$adjust[$jn];
1.206 sakharuk 2118: }
2119: }
1.203 sakharuk 2120: }
2121: }
1.222 sakharuk 2122: #use all available width if it is defined in % or as TeXwidth
2123: if (($Apache::londefdef::table[-1]{'percent'}==1) || ($Apache::londefdef::table[-1]{'forcetablewidth'}==1)) {
1.203 sakharuk 2124: my $current=0;
1.206 sakharuk 2125: for (my $i=0;$i<=$#fwidth;$i++) {
2126: $current+=$fwidth[$i];
1.203 sakharuk 2127: }
2128: my $coef=$Apache::londefdef::table[-1]{'width'}/$current;
1.206 sakharuk 2129: for (my $i=0;$i<=$#fwidth;$i++) {
2130: $fwidth[$i]*=$coef;
2131: }
2132: }
2133: #removing of empty columns if allowed
1.208 sakharuk 2134: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
1.206 sakharuk 2135: if ($permission eq 'yes') {
2136: my @cleaned_table=();
2137: my @cleaned_header=();
2138: my $colind=0;
2139: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2140: if ($fwidth[$jn]!=0) {
2141: #we need to copy column
2142: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2143: $cleaned_table[$in][$colind]=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
2144: $cleaned_header[$colind]=$fwidth[$jn];
2145: }
2146: $colind++;
2147: }
1.122 albertel 2148: }
1.206 sakharuk 2149: $Apache::londefdef::table[-1]{'content'}=\@cleaned_table;
2150: @fwidth=@cleaned_header;
1.122 albertel 2151: }
1.206 sakharuk 2152: #construct header of the table
2153: my $header_of_table = '{'.$Apache::londefdef::table[-1]{'vvinc'};
2154: for (my $in=0;$in<=$#fwidth;$in++) {
2155: $header_of_table.='p{'.$fwidth[$in].' mm}'.$Apache::londefdef::table[-1]{'vvinc'};
2156: }
2157: $header_of_table .= '}';
1.126 sakharuk 2158: #fill the table
2159: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1.206 sakharuk 2160: for (my $jn=0;$jn<=$#fwidth;$jn++) {
2161: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
1.228 sakharuk 2162: $output.='\vspace*{-6 mm}\begin{center}';
1.206 sakharuk 2163: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
2164: $output.=' \hfill \llap{'
2165: }
2166: $output.=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
2167: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
1.228 sakharuk 2168: $output.='\end{center}\vspace*{-6 mm}';
1.206 sakharuk 2169: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
2170: $output.='} ';
2171: }
2172: if ($jn!=$#fwidth) {$output.=' '.$Apache::londefdef::table[-1]{'vinc'};}
2173: }
2174: $output.=' \\\\ '.$Apache::londefdef::table[-1]{'hinc'}.' ';
1.122 albertel 2175: }
1.281 foxr 2176: # Note that \newline destroys alignment env's produced by e.g. <div>
2177: # $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut\newline\strut ';
2178: $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut'.'\\\\'."\n".'\strut ';
1.127 sakharuk 2179: if ($#Apache::londefdef::table > 0) {
2180: my $inmemory = $Apache::londefdef::table[-1]{'output'};
2181: pop @Apache::londefdef::table;
1.129 sakharuk 2182: push @{$Apache::londefdef::table[-1]{'include'}}, $inmemory;
1.127 sakharuk 2183: } else {
2184: $currentstring .= $Apache::londefdef::table[-1]{'output'};
2185: pop @Apache::londefdef::table;
1.143 sakharuk 2186: undef @Apache::londefdef::table;
1.127 sakharuk 2187: }
1.122 albertel 2188: }
2189: return $currentstring;
2190: }
2191:
1.166 sakharuk 2192: #-- <tr> tag (end tag optional)
1.122 albertel 2193: sub start_tr {
2194: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2195: my $currentstring = '';
2196: if ($target eq 'web') {
2197: $currentstring = $token->[4];
2198: } elsif ($target eq 'tex') {
2199: $Apache::londefdef::table[-1]{'row_number'}++;
1.206 sakharuk 2200: my $alignchar=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.122 albertel 2201: if ($alignchar ne '') {
1.206 sakharuk 2202: push @ {$Apache::londefdef::table[-1]{'rows'} },substr($alignchar,0,1);
1.122 albertel 2203: } else {
2204: push @ {$Apache::londefdef::table[-1]{'rows'} }, 'l';
2205: }
2206: push ( @{ $Apache::londefdef::table[-1]{'rowdata'} }, $Apache::londefdef::table[-1]{'hinc'});
2207: $Apache::londefdef::table[-1]{'counter_columns'} = -1;
1.206 sakharuk 2208: push @ {$Apache::londefdef::table[-1]{'TeXlen'}}, [];
2209: push @ {$Apache::londefdef::table[-1]{'objectlen'}}, [];
2210: push @ {$Apache::londefdef::table[-1]{'minlen'}}, [];
2211: push @ {$Apache::londefdef::table[-1]{'maxlen'}}, [];
2212: push @ {$Apache::londefdef::table[-1]{'content'}}, [];
1.122 albertel 2213: }
2214: return $currentstring;
2215: }
2216:
2217: sub end_tr {
1.160 sakharuk 2218: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 2219: my $currentstring = &end_p(); # Close any pending <p> in the row.
1.122 albertel 2220: if ($target eq 'web') {
1.277 foxr 2221: $currentstring .= $token->[2];
1.122 albertel 2222: } elsif ($target eq 'tex') {
1.160 sakharuk 2223: if ($Apache::londefdef::TD_redirection) {
2224: &end_td_tex($parstack,$parser,$safeeval);
2225: }
1.122 albertel 2226: }
2227: return $currentstring;
2228: }
2229:
1.166 sakharuk 2230: #-- <td> tag (end tag optional)
1.122 albertel 2231: sub start_td {
2232: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2233: my $currentstring = '';
2234: if ($target eq 'web') {
2235: $currentstring = $token->[4];
2236: } elsif ($target eq 'tex') {
1.160 sakharuk 2237: $Apache::londefdef::TD_redirection = 1;
1.159 sakharuk 2238: &tag_check('tr','td',$tagstack,$parstack,$parser,$safeeval);
1.122 albertel 2239: }
2240: return $currentstring;
2241: }
1.159 sakharuk 2242:
2243: sub tag_check {
2244: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
1.160 sakharuk 2245: my @ar=@$parstack;
2246: for (my $i=$#ar-1;$i>=0;$i--) {
2247: if (lc($$tagstack[$i]) eq $good_tag) {
2248: &start_td_tex($parstack,$parser,$safeeval);
2249: last;
2250: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2251: splice @ar, $i+1;
2252: &end_td_tex(\@ar,$parser,$safeeval);
2253: &start_td_tex($parstack,$parser,$safeeval);
2254: last;
1.159 sakharuk 2255: }
1.160 sakharuk 2256: }
1.159 sakharuk 2257: return '';
2258: }
2259:
2260: sub start_td_tex {
2261: my ($parstack,$parser,$safeeval) = @_;
1.206 sakharuk 2262: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2263: if ($alignchar eq '') {
2264: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
1.159 sakharuk 2265: }
1.206 sakharuk 2266: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
1.159 sakharuk 2267: $Apache::londefdef::table[-1]{'counter_columns'}++;
1.206 sakharuk 2268: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2269: if (defined $TeXwidth) {
2270: my $current_length=&recalc($TeXwidth);
2271: $current_length=~/(\d+\.?\d*)/;
2272: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2273: }
1.159 sakharuk 2274: &Apache::lonxml::startredirection();
2275: return '';
2276: }
2277:
2278: sub end_td_tex {
2279: my ($parstack,$parser,$safeeval) = @_;
2280: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2281: my $data=&Apache::lonxml::endredirection();
2282: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2283: if (defined $TeXwidth) {
1.206 sakharuk 2284: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2285: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2286: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
1.159 sakharuk 2287: } else {
1.206 sakharuk 2288: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2289: my $garbage_data=$data;
2290: my $fwidth=0;
2291: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2292: my $current_length=&recalc($1);
2293: $current_length=~/(\d+\.?\d*)/;
2294: if ($fwidth<$1) {$fwidth=$1;}
2295: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2296: }
2297: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2298: my $current_length=$1;
2299: if ($fwidth<$current_length) {$fwidth=$current_length;}
2300: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2301: }
2302: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2303: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2304: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2305: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
1.231 sakharuk 2306: } elsif ($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)*/) {
2307: my $garbage_data=$data;
2308: my $fwidth=0;
2309: while ($garbage_data=~/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)\s*\}/) {
2310: my $current_length=&recalc($1);
2311: $current_length=~/(\d+\.?\d*)/;
2312: if ($fwidth<$1) {$fwidth=$1;}
2313: $garbage_data=~s/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2314: }
2315: while ($garbage_data=~/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2316: my $current_length=&recalc($1);
2317: $current_length=~/(\d+\.?\d*)/;
2318: if ($fwidth<$1) {$fwidth=$1;}
2319: $garbage_data=~s/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2320: }
2321: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2322: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2323: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2324: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2325: $data=~s/\\\\\s*$//;
1.159 sakharuk 2326: } else {
1.166 sakharuk 2327: $data=~s/^\s+(\S.*)/$1/;
1.159 sakharuk 2328: $data=~s/(.*\S)\s+$/$1/;
1.166 sakharuk 2329: $data=~s/(\s)+/$1/;
1.206 sakharuk 2330: my ($current_length,$min_length)=(0,0);
1.166 sakharuk 2331: if ($data=~/\\vskip/) {
2332: my $newdata=$data;
2333: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2334: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2335: foreach my $elementdata (@newdata) {
1.206 sakharuk 2336: my $lengthnewdata=2.5*&LATEX_length($elementdata);
1.166 sakharuk 2337: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
1.206 sakharuk 2338: my @words=split(/ /,$elementdata);
2339: foreach my $word (@words) {
2340: my $lengthword=2.5*&LATEX_length($word);
2341: if ($min_length<$lengthword) {$min_length=$lengthword;}
2342: }
1.166 sakharuk 2343: }
2344: } else {
1.206 sakharuk 2345: $current_length=2.5*&LATEX_length($data);
2346: my @words=split(/ /,$data);
2347: foreach my $word (@words) {
1.228 sakharuk 2348: my $lengthword=2*&LATEX_length($word);
1.206 sakharuk 2349: if ($min_length<$lengthword) {$min_length=$lengthword;}
2350: }
1.166 sakharuk 2351: }
1.206 sakharuk 2352: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2353: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2354: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2355: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
1.159 sakharuk 2356: }
2357: }
2358: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
2359: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2360: }
1.206 sakharuk 2361: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
1.159 sakharuk 2362: return'';
2363: }
2364:
1.122 albertel 2365: sub end_td {
1.126 sakharuk 2366: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 2367: my $currentstring = '';
2368: if ($target eq 'web') {
2369: $currentstring = $token->[2];
2370: } elsif ($target eq 'tex') {
1.160 sakharuk 2371: $Apache::londefdef::TD_redirection =0;
1.159 sakharuk 2372: &end_td_tex($parstack,$parser,$safeeval);
1.122 albertel 2373: }
2374: return $currentstring;
2375: }
2376:
1.166 sakharuk 2377: #-- <th> tag (end tag optional)
1.122 albertel 2378: sub start_th {
2379: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2380: my $currentstring = '';
2381: if ($target eq 'web') {
2382: $currentstring = $token->[4];
2383: } elsif ($target eq 'tex') {
1.230 sakharuk 2384: $Apache::londefdef::TD_redirection = 1;
2385: &tagg_check('tr','th',$tagstack,$parstack,$parser,$safeeval);
1.122 albertel 2386: }
2387: return $currentstring;
1.130 sakharuk 2388: }
1.230 sakharuk 2389:
2390: sub tagg_check {
2391: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
2392: my @ar=@$parstack;
2393: for (my $i=$#ar-1;$i>=0;$i--) {
2394: if (lc($$tagstack[$i]) eq $good_tag) {
2395: &start_th_tex($parstack,$parser,$safeeval);
2396: last;
2397: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2398: splice @ar, $i+1;
2399: &end_th_tex(\@ar,$parser,$safeeval);
2400: &start_th_tex($parstack,$parser,$safeeval);
2401: last;
2402: }
2403: }
2404: return '';
2405: }
2406:
2407: sub start_th_tex {
2408: my ($parstack,$parser,$safeeval) = @_;
2409: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2410: if ($alignchar eq '') {
2411: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
2412: }
2413: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
2414: $Apache::londefdef::table[-1]{'counter_columns'}++;
2415: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2416: if (defined $TeXwidth) {
2417: my $current_length=&recalc($TeXwidth);
2418: $current_length=~/(\d+\.?\d*)/;
2419: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2420: }
2421: &Apache::lonxml::startredirection();
2422: return '';
2423: }
2424:
2425: sub end_th_tex {
2426: my ($parstack,$parser,$safeeval) = @_;
2427: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2428: my $data=&Apache::lonxml::endredirection();
2429: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2430: if (defined $TeXwidth) {
2431: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2432: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2433: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2434: } else {
2435: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2436: my $garbage_data=$data;
2437: my $fwidth=0;
2438: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2439: my $current_length=&recalc($1);
2440: $current_length=~/(\d+\.?\d*)/;
2441: if ($fwidth<$1) {$fwidth=$1;}
2442: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2443: }
2444: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2445: my $current_length=$1;
2446: if ($fwidth<$current_length) {$fwidth=$current_length;}
2447: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2448: }
2449: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2450: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2451: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2452: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2453: } else {
2454: $data=~s/^\s+(\S.*)/$1/;
2455: $data=~s/(.*\S)\s+$/$1/;
2456: $data=~s/(\s)+/$1/;
2457: my ($current_length,$min_length)=(0,0);
2458: if ($data=~/\\vskip/) {
2459: my $newdata=$data;
2460: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2461: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2462: foreach my $elementdata (@newdata) {
2463: my $lengthnewdata=2.5*&LATEX_length($elementdata);
2464: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
2465: my @words=split(/ /,$elementdata);
2466: foreach my $word (@words) {
2467: my $lengthword=2.5*&LATEX_length($word);
2468: if ($min_length<$lengthword) {$min_length=$lengthword;}
2469: }
2470: }
2471: } else {
2472: $current_length=2.5*&LATEX_length($data);
2473: my @words=split(/ /,$data);
2474: foreach my $word (@words) {
2475: my $lengthword=2*&LATEX_length($word);
2476: if ($min_length<$lengthword) {$min_length=$lengthword;}
2477: }
2478: }
2479: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2480: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2481: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2482: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
2483: }
2484: }
2485: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
2486: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2487: }
2488: #make data bold
2489: $data='\textbf{'.$data.'}';
2490: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
2491: return'';
2492: }
2493:
1.122 albertel 2494: sub end_th {
1.130 sakharuk 2495: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 2496: my $currentstring = &end_p(); # Close any open <p> in the row.
1.122 albertel 2497: if ($target eq 'web') {
1.277 foxr 2498: $currentstring .= $token->[2];
1.122 albertel 2499: } elsif ($target eq 'tex') {
1.230 sakharuk 2500: $Apache::londefdef::TD_redirection =0;
2501: &end_th_tex($parstack,$parser,$safeeval);
1.122 albertel 2502: }
2503: return $currentstring;
2504: }
1.230 sakharuk 2505:
1.181 sakharuk 2506: #-- <img> tag (end tag forbidden)
1.249 foxr 2507: #
2508: # Render the <IMG> tag.
2509: # <IMG> has the following attributes (in addition to the
2510: # standard HTML ones:
2511: # TeXwrap - Governs how the tex target will try to wrap text around
2512: # horizontally aligned images.
2513: # TeXwidth - The width of the image when rendered for print (mm).
2514: # TeXheight - The height of the image when rendered for print (mm)
2515: # (Note there seems to also be support for this as a % of page size)
2516: #
1.122 albertel 2517: sub start_img {
2518: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2519: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,
2520: undef,1);
1.189 albertel 2521: if (not $src and ($target eq 'web' or $target eq 'tex')) {
2522: my $inside = &Apache::lonxml::get_all_text("/img",$parser);
2523: return '';
2524: }
1.122 albertel 2525: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$src;
2526: my $currentstring = '';
2527: my $scaling = .3;
1.249 foxr 2528:
2529: # Render unto browsers that which are the browser's...
2530:
1.122 albertel 2531: if ($target eq 'web') {
1.267 albertel 2532: if ($env{'browser.imagesuppress'} ne 'on') {
1.250 albertel 2533: $currentstring.=&Apache::lonenc::encrypt_ref($token,{'src'=>$src});
1.122 albertel 2534: } else {
2535: my $alttag= &Apache::lonxml::get_param
2536: ('alt',$parstack,$safeeval,undef,1);
2537: unless ($alttag) {
2538: $alttag=&Apache::lonmeta::alttag
2539: ($Apache::lonxml::pwd[-1],$src);
1.51 sakharuk 2540: }
1.158 sakharuk 2541: $currentstring.='[IMAGE: '.$alttag.']';
1.1 sakharuk 2542: }
1.249 foxr 2543:
2544: # and render unto TeX that which is LaTeX
2545:
1.122 albertel 2546: } elsif ($target eq 'tex') {
1.248 foxr 2547: #
2548: # The alignment will require some superstructure to be put around
2549: # the \includegraphics stuff. At present we can only partially
2550: # simulate the alignments offered by html.
2551: #
2552: #
2553: my $align = lc(&Apache::lonxml::get_param('align',
2554: $parstack,
2555: $safeeval,
2556: undef,1));
2557: if(!$align) {
2558: $align = "bottom"; # This is html's default so it's ours too.
2559: }
2560: #
2561: &Apache::lonxml::debug("Alignemnt = $align");
2562: # LaTeX's image/text wrapping is really bad since it wants to
2563: # make figures float.
2564: # The user has the optional parameter (applicable only to l/r
2565: # alignment to use the picins/parpic directive to get wrapped text
2566: # this is also imperfect.. that's why we give them a choice...
2567: # so they can't yell at us for our choice.
2568: #
2569: my $latex_rendering = &Apache::lonxml::get_param('TeXwrap',
2570: $parstack,
2571: $safeeval,
2572: undef,0);
2573: &Apache::lonxml::debug("LaTeX rendering = $latex_rendering");
2574: if(!$latex_rendering) {
2575: $latex_rendering = "parbox";
2576: }
1.261 foxr 2577: &Apache::lonxml::debug("LaTeX rendering = $latex_rendering image file: $src");
1.248 foxr 2578:
1.256 albertel 2579: #if original gif/jpg/png file exist do following:
1.266 albertel 2580: my $origsrc=$src;
1.256 albertel 2581: my ($path,$file) = &get_eps_image($src);
1.122 albertel 2582: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.261 foxr 2583: &Apache::lonxml::debug("path = $path file = $file src = $src");
1.192 sakharuk 2584: if (-e $src) {
1.261 foxr 2585: &Apache::lonxml::debug("$src exists");
1.256 albertel 2586: my ($height_param,$width_param)=
1.266 albertel 2587: &image_size($origsrc,0.3,$parstack,$safeeval);
1.262 foxr 2588: my $destpath = $path;
1.263 foxr 2589: $destpath =~ s/ /\_/g; # Spaces in path cause LaTex to vomit.
2590: my $destfile = $file;
2591: $destfile =~ s/ /\_/g;
1.266 albertel 2592: my $size;
2593: if ($width_param) { $size.='width='.$width_param.' mm,'; }
2594: if ($height_param) { $size.='height='.$height_param.' mm]'; }
2595: $size='['.$size;
2596: $size=~s/,$/]/;
1.262 foxr 2597: $currentstring .= '\graphicspath{{'.$destpath.'}}'
1.266 albertel 2598: .'\includegraphics'.$size.'{'.$destfile.'} ';
1.256 albertel 2599:
1.248 foxr 2600: # If there's an alignment specification we need to honor it here.
2601: # For the horizontal alignments, we will also honor the
2602: # value of the latex specfication. The default is parbox,
2603: # and that's used for illegal values too.
2604: #
2605: # Even though we set a default alignment value, the user
2606: # could have given us an illegal value. In that case we
2607: # just use the default alignment of bottom..
2608: if ($align eq "top") {
2609: $currentstring = '\raisebox{-'.$height_param.'mm}{'.$currentstring.'}';
2610: } elsif (($align eq "center") || ($align eq "middle")) { # Being kind
2611: my $offset = $height_param/2;
2612: $currentstring = '\raisebox{-'.$offset.'mm}{'.$currentstring.'}';
2613: } elsif ($align eq "left") {
2614: if ($latex_rendering eq "parpic") {
2615: $currentstring = '\parpic[l]{'.$currentstring.'}';
2616: } else { # parbox rendering
1.255 albertel 2617: $currentstring = "\\strut\\newline\n".
2618: '\parbox{'.$width_param.'mm}{'.$currentstring.'}';
1.248 foxr 2619: }
2620: } elsif ($align eq "right") {
2621: if ($latex_rendering eq "parpic") {
2622: $currentstring = '\parpic[r]{'.$currentstring.'}';
2623: } else { # parbox rendering.
2624: $currentstring = '\parbox{'.$width_param.'mm}{\begin{flushright}'
2625: .$currentstring.'\end{flushright}} \newline'."\n";
2626: }
2627: } else { # Bottom is also default.
2628: # $currentstring = '\raisebox{'.$height_param.'mm}{'.$currentstring.'}';
2629: }
1.122 albertel 2630: } else {
1.261 foxr 2631: &Apache::lonxml::debug("$src does not exist");
1.122 albertel 2632: #original image file doesn't exist so check the alt attribute
2633: my $alt =
2634: &Apache::lonxml::get_param('alt',$parstack,$safeeval,undef,1);
2635: unless ($alt) {
2636: $alt=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
2637: }
2638:
1.256 albertel 2639: if ($alt) { $currentstring .= ' '.$alt.' '; }
1.59 sakharuk 2640: }
1.249 foxr 2641:
2642: # And here's where the semi-quote breaks down: allow the user
2643: # to edit the beast as well by rendering the problem for edit:
1.186 albertel 2644: } elsif ($target eq 'edit') {
2645: $currentstring .=&Apache::edit::tag_start($target,$token);
2646: $currentstring .=&Apache::edit::text_arg('Image Url:','src',$token,70).
2647: &Apache::edit::browse('src',undef,'alt').' '.
2648: &Apache::edit::search('src',undef,'alt').'<br />';
2649: $currentstring .=&Apache::edit::text_arg('Description:','alt',$token,70).'<br />';
2650: $currentstring .=&Apache::edit::text_arg('width (pixel):','width',$token,5);
2651: $currentstring .=&Apache::edit::text_arg('height (pixel):','height',$token,5).'<br />';
2652: $currentstring .=&Apache::edit::text_arg('TeXwidth (mm):','TeXwidth',$token,5);
2653: $currentstring .=&Apache::edit::text_arg('TeXheight (mm):','TeXheight',$token,5);
1.234 albertel 2654: $currentstring .=&Apache::edit::select_arg('Alignment:','align',
2655: ['','bottom','middle','top','left','right'],$token,5);
1.249 foxr 2656: $currentstring .=&Apache::edit::select_arg('TeXwrap:', 'TeXwrap',
2657: ['', 'parbox', 'parpic'], $token, 2);
1.186 albertel 2658: $currentstring .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1.249 foxr 2659: my $src= &Apache::lonxml::get_param('src',$parstack,$safeeval);
2660: my $alt= &Apache::lonxml::get_param('alt',$parstack,$safeeval);
2661: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
2662: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
2663:
2664:
1.186 albertel 2665: $currentstring .= '<img src="'.$src.'" alt="'.$alt.'" ';
2666: if ($width) { $currentstring.=' width="'.$width.'" '; }
2667: if ($height) { $currentstring.=' height="'.$height.'" '; }
2668: $currentstring .= ' />';
2669: } elsif ($target eq 'modified') {
1.210 albertel 2670: my ($osrc,$owidth,$oheight)=
2671: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2672: my $ctag=&Apache::edit::get_new_args($token,$parstack,
1.234 albertel 2673: $safeeval,'src','alt','align',
1.249 foxr 2674: 'TeXwidth','TeXheight', 'TeXwrap',
1.210 albertel 2675: 'width','height');
2676: my ($nsrc,$nwidth,$nheight)=
2677: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2678: my $loc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$nsrc);
2679: &image_replication($loc);
2680: my ($iwidth,$iheight);
2681: if (-e $loc) {
2682: my $image = Image::Magick->new;
2683: $image->Read($loc);
2684: ($iwidth, $iheight) = ($image->Get('width'),
2685: $image->Get('height'));
2686: }
2687: if ($osrc ne $nsrc || (!$nwidth && !$nheight)) {
2688: # changed image or no size specified,
2689: # if they didn't explicitly change the
2690: # width or height use the ones from the image
2691: if ($iwidth && $iheight) {
2692: if ($owidth == $nwidth || (!$nwidth && !$nheight)) {
2693: $token->[2]{'width'} = $iwidth;$ctag=1;
2694: }
2695: if ($oheight == $nheight || (!$nwidth && !$nheight)) {
2696: $token->[2]{'height'}=$iheight;$ctag=1;
1.186 albertel 2697: }
2698: }
2699: }
1.210 albertel 2700: my ($cwidth,$cheight)=($token->[2]{'width'},$token->[2]{'height'});
2701: # if we don't have a width or height
2702: if ($iwidth && $cwidth && !$cheight) {
2703: $token->[2]{'height'}=int(($cwidth/$iwidth)*$iheight);$ctag=1;
2704: }
2705: if ($iheight && $cheight && !$cwidth) {
2706: $token->[2]{'width'}=int(($cheight/$iheight)*$iwidth);$ctag=1;
2707: }
2708: if ($ctag) {$currentstring=&Apache::edit::rebuild_tag($token);}
1.122 albertel 2709: }
1.261 foxr 2710:
1.122 albertel 2711: return $currentstring;
2712: }
2713:
2714: sub end_img {
2715: my ($target,$token) = @_;
2716: my $currentstring = '';
2717: if ($target eq 'web') {
2718: $currentstring = $token->[2];
2719: } elsif ($target eq 'tex') {
2720: $currentstring = '';
2721: }
2722: return $currentstring;
2723: }
2724:
1.181 sakharuk 2725: #-- <applet> tag (end tag required)
1.122 albertel 2726: sub start_applet {
2727: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2728:
2729: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,undef,1);
2730: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$code;
2731:
2732: my $archive=&Apache::lonxml::get_param('archive',$parstack,$safeeval,
2733: undef,1);
2734: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$archive;
2735:
2736: my $currentstring = '';
2737: if ($target eq 'web') {
1.267 albertel 2738: if ($env{'browser.appletsuppress'} ne 'on') {
1.250 albertel 2739: $currentstring = &Apache::lonenc::encrypt_ref($token,
2740: {'code'=>$code,
2741: 'archive'=>$archive}
2742: );
1.122 albertel 2743: } else {
2744: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
2745: $safeeval,undef,1);
2746: unless ($alttag) {
2747: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2748: $code);
1.44 sakharuk 2749: }
1.122 albertel 2750: $currentstring='[APPLET: '.$alttag.']';
1.1 sakharuk 2751: }
1.122 albertel 2752: } elsif ($target eq 'tex') {
1.177 albertel 2753: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
2754: $safeeval,undef,1);
2755: unless ($alttag) {
2756: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,
2757: undef,1);
2758: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2759: $code);
1.175 sakharuk 2760: }
1.177 albertel 2761: $currentstring.='\begin{center} \fbox{Java Applet: '.$alttag.
2762: '.}\end{center}';
1.122 albertel 2763: }
2764: return $currentstring;
2765: }
2766:
2767: sub end_applet {
2768: my ($target,$token) = @_;
2769: my $currentstring = '';
2770: if ($target eq 'web') {
2771: $currentstring = $token->[2];
2772: } elsif ($target eq 'tex') {
2773: }
2774: return $currentstring;
2775: }
2776:
1.181 sakharuk 2777: #-- <embed> tag (end tag optional/required)
1.122 albertel 2778: sub start_embed {
2779: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2780: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2781: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$src;
2782: my $currentstring = '';
2783: if ($target eq 'web') {
1.267 albertel 2784: if ($env{'browser.embedsuppress'} ne 'on') {
1.250 albertel 2785: $currentstring=&Apache::lonenc::encrypt_ref($token,{'src'=>$src});
1.122 albertel 2786: } else {
2787: my $alttag=&Apache::lonxml::get_param
2788: ('alt',$parstack,$safeeval,undef,1);
2789: unless ($alttag) {
2790: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
1.42 albertel 2791: }
1.122 albertel 2792: $currentstring='[EMBED: '.$alttag.']';
1.10 www 2793: }
1.122 albertel 2794: } elsif ($target eq 'tex') {
2795: }
2796: return $currentstring;
2797: }
2798:
2799: sub end_embed {
2800: my ($target,$token) = @_;
2801: my $currentstring = '';
2802: if ($target eq 'web') {
2803: $currentstring = $token->[2];
1.175 sakharuk 2804: } elsif ($target eq 'tex') {
1.122 albertel 2805: }
2806: return $currentstring;
2807: }
2808:
1.181 sakharuk 2809: #-- <param> tag (end tag forbidden)
1.122 albertel 2810: sub start_param {
2811: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2812: if (&Apache::lonxml::get_param
2813: ('name',$parstack,$safeeval,undef,1)=~/^cabbase$/i) {
2814: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
2815: &Apache::lonxml::get_param('value',$parstack,$safeeval,undef,1);
2816: }
2817: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
2818: &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2819: my $currentstring = '';
2820: if ($target eq 'web') {
1.250 albertel 2821: my %toconvert;
2822: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2823: if ($src) { $toconvert{'src'}= $src; }
2824: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval,
2825: undef,1);
1.251 albertel 2826: if ($name=~/^cabbase$/i) {
2827: $toconvert{'value'}=&Apache::lonxml::get_param('value',$parstack,
2828: $safeeval,undef,1);
2829: }
1.250 albertel 2830: $currentstring = &Apache::lonenc::encrypt_ref($token,\%toconvert);
1.122 albertel 2831: } elsif ($target eq 'tex') {
2832: }
2833: return $currentstring;
2834: }
2835:
2836: sub end_param {
2837: my ($target,$token) = @_;
2838: my $currentstring = '';
2839: if ($target eq 'web') {
2840: $currentstring = $token->[2];
2841: } elsif ($target eq 'tex') {
2842: }
2843: return $currentstring;
2844: }
2845:
2846: #-- <allow> tag
2847: sub start_allow {
2848: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2849: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2850: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.138 www 2851: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
2852: &Apache::lonnet::clutter($src);
1.241 albertel 2853: if ($target eq 'tex') { &image_replication($src); }
1.122 albertel 2854: my $result;
2855: if ($target eq 'edit') {
2856: $result .=&Apache::edit::tag_start($target,$token);
2857: $result .=&Apache::edit::text_arg('File Spec:','src',$token,70);
2858: $result .=&Apache::edit::end_row();#.&Apache::edit::start_spanning_row();
2859: } elsif ($target eq 'modified') {
2860: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2861: $safeeval,'src');
2862: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2863: }
2864: return $result;
2865: }
2866:
2867: sub end_allow {
2868: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2869: if ( $target eq 'edit') { return (&Apache::edit::end_table()); }
2870: return '';
2871: }
1.119 www 2872:
1.181 sakharuk 2873: #-- Frames (end tag required)
2874: #-- <frameset>
1.122 albertel 2875: sub start_frameset {
2876: my ($target,$token) = @_;
1.277 foxr 2877: my $currentstring = ''; # Close any pending para.
1.122 albertel 2878: if ($target eq 'web') {
1.180 albertel 2879: if (!$Apache::lonxml::registered &&
1.267 albertel 2880: $env{'request.state'} eq 'published') {
1.122 albertel 2881: $currentstring.='<head>'.
2882: &Apache::lonmenu::registerurl(undef,$target).'</head>';
1.10 www 2883: }
1.133 www 2884: my $onLoad='';
2885: foreach my $key (keys(%{$token->[2]})) {
2886: if ($key =~ /^onload$/i) {
2887: $onLoad.=$token->[2]->{$key}.';';
2888: delete($token->[2]->{$key});
2889: }
2890: }
2891: $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad;
2892: my $onUnload='';
2893: foreach my $key (keys(%{$token->[2]})) {
2894: if ($key =~ /^onunload$/i) {
2895: $onUnload.=$token->[2]->{$key}.';';
2896: delete($token->[2]->{$key});
2897: }
2898: }
2899: $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().
2900: ';'.$onUnload;
2901:
2902: $currentstring .= '<'.$token->[1];
2903: foreach (keys %{$token->[2]}) {
2904: $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
2905: }
2906: $currentstring.='>';
1.122 albertel 2907: }
2908: return $currentstring;
2909: }
2910:
2911: sub end_frameset {
2912: my ($target,$token) = @_;
2913: my $currentstring = '';
2914: if ($target eq 'web') {
2915: $currentstring = $token->[2];
2916: }
2917: return $currentstring;
2918: }
1.162 sakharuk 2919:
1.181 sakharuk 2920: #-- <xmp> (end tag required)
1.162 sakharuk 2921: sub start_xmp {
2922: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2923: my $currentstring = '';
2924: if ($target eq 'web') {
2925: $currentstring .= $token->[4];
2926: } elsif ($target eq 'tex') {
2927: $currentstring .= '\begin{verbatim}';
2928: }
2929: return $currentstring;
2930: }
2931:
2932: sub end_xmp {
2933: my ($target,$token) = @_;
2934: my $currentstring = '';
2935: if ($target eq 'web') {
2936: $currentstring .= $token->[2];
2937: } elsif ($target eq 'tex') {
2938: $currentstring .= '\end{verbatim}';
2939: }
2940: return $currentstring;
2941: }
2942:
1.181 sakharuk 2943: #-- <pre> (end tag required)
1.122 albertel 2944: sub start_pre {
1.126 sakharuk 2945: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 2946: my $currentstring = &end_p(); # close off pending <p>
1.122 albertel 2947: if ($target eq 'web') {
2948: $currentstring .= $token->[4];
2949: } elsif ($target eq 'tex') {
1.136 sakharuk 2950: $currentstring .= '\begin{verbatim}';
1.122 albertel 2951: }
2952: return $currentstring;
2953: }
2954:
2955: sub end_pre {
2956: my ($target,$token) = @_;
2957: my $currentstring = '';
2958: if ($target eq 'web') {
2959: $currentstring .= $token->[2];
2960: } elsif ($target eq 'tex') {
1.136 sakharuk 2961: $currentstring .= '\end{verbatim}';
1.122 albertel 2962: }
2963: return $currentstring;
2964: }
2965:
2966: #-- <insert>
2967: sub start_insert {
2968: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2969: my $currentstring = '';
2970: if ($target eq 'web') {
2971: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
2972: $currentstring .= '<b>'.$display.'</b>';;
2973: }
2974: return $currentstring;
2975: }
2976:
2977: sub end_insert {
2978: my ($target,$token) = @_;
2979: my $currentstring = '';
2980: if ($target eq 'web') {
2981: $currentstring .= '';
2982: }
2983: return $currentstring;
2984: }
2985:
2986: #-- <externallink>
2987: sub start_externallink {
2988: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2989: my $currentstring = '';
2990: if ($target eq 'web') {
2991: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
2992: $currentstring .= '<b>'.$display.'</b>';;
2993: }
2994: return $currentstring;
2995: }
2996:
2997: sub end_externallink {
2998: my ($target,$token) = @_;
2999: my $currentstring = '';
3000: if ($target eq 'web') {
3001: $currentstring .= '';
3002: }
3003: return $currentstring;
3004: }
3005:
3006: #-- <blankspace heigth="">
3007: sub start_blankspace {
3008: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 3009: my $currentstring = &end_p(); # closes off any unclosed <p>
1.122 albertel 3010: if ($target eq 'tex') {
3011: my $howmuch = &Apache::lonxml::get_param('heigth',$parstack,$safeeval,undef,1);
3012: $currentstring .= '\vskip '.$howmuch.' ';
3013: }
3014: return $currentstring;
3015: }
3016:
3017: sub end_blankspace {
3018: my ($target,$token) = @_;
3019: my $currentstring = '';
3020: if ($target eq 'tex') {
3021: $currentstring .= '';
3022: }
3023: return $currentstring;
3024: }
3025:
1.181 sakharuk 3026: #-- <abbr> tag (end tag required)
1.122 albertel 3027: sub start_abbr {
3028: my ($target,$token) = @_;
3029: my $currentstring = '';
3030: if ($target eq 'web') {
3031: $currentstring = $token->[4];
3032: }
3033: return $currentstring;
3034: }
3035:
3036: sub end_abbr {
3037: my ($target,$token) = @_;
3038: my $currentstring = '';
3039: if ($target eq 'web') {
3040: $currentstring = $token->[2];
3041: }
3042: return $currentstring;
3043: }
3044:
1.181 sakharuk 3045: #-- <acronym> tag (end tag required)
1.122 albertel 3046: sub start_acronym {
3047: my ($target,$token) = @_;
3048: my $currentstring = '';
3049: if ($target eq 'web') {
3050: $currentstring = $token->[4];
3051: }
3052: return $currentstring;
3053: }
3054:
3055: sub end_acronym {
3056: my ($target,$token) = @_;
3057: my $currentstring = '';
3058: if ($target eq 'web') {
3059: $currentstring = $token->[2];
3060: }
3061: return $currentstring;
3062: }
3063:
1.181 sakharuk 3064: #-- <area> tag (end tag forbidden)
1.122 albertel 3065: sub start_area {
3066: my ($target,$token) = @_;
3067: my $currentstring = '';
3068: if ($target eq 'web') {
3069: $currentstring = $token->[4];
3070: }
3071: return $currentstring;
3072: }
3073:
3074: sub end_area {
3075: my ($target,$token) = @_;
3076: my $currentstring = '';
3077: if ($target eq 'web') {
3078: $currentstring = $token->[2];
3079: }
3080: return $currentstring;
3081: }
3082:
1.181 sakharuk 3083: #-- <base> tag (end tag forbidden)
1.122 albertel 3084: sub start_base {
3085: my ($target,$token) = @_;
3086: my $currentstring = '';
3087: if ($target eq 'web') {
3088: $currentstring = $token->[4];
1.161 sakharuk 3089: }
1.122 albertel 3090: return $currentstring;
3091: }
3092:
3093: sub end_base {
3094: my ($target,$token) = @_;
3095: my $currentstring = '';
3096: if ($target eq 'web') {
3097: $currentstring = $token->[2];
3098: }
3099: return $currentstring;
3100: }
3101:
1.181 sakharuk 3102: #-- <bdo> tag (end tag required)
1.122 albertel 3103: sub start_bdo {
3104: my ($target,$token) = @_;
3105: my $currentstring = '';
3106: if ($target eq 'web') {
3107: $currentstring = $token->[4];
3108: }
3109: return $currentstring;
3110: }
3111:
3112: sub end_bdo {
3113: my ($target,$token) = @_;
3114: my $currentstring = '';
3115: if ($target eq 'web') {
3116: $currentstring = $token->[2];
3117: }
3118: return $currentstring;
3119: }
3120:
1.181 sakharuk 3121: #-- <bgsound> tag (end tag optional)
1.122 albertel 3122: sub start_bgsound {
3123: my ($target,$token) = @_;
3124: my $currentstring = '';
3125: if ($target eq 'web') {
3126: $currentstring = $token->[4];
3127: }
3128: return $currentstring;
3129: }
3130:
3131: sub end_bgsound {
3132: my ($target,$token) = @_;
3133: my $currentstring = '';
3134: if ($target eq 'web') {
3135: $currentstring = $token->[2];
3136: }
3137: return $currentstring;
3138: }
3139:
1.181 sakharuk 3140: #-- <blink> tag (end tag required)
1.122 albertel 3141: sub start_blink {
3142: my ($target,$token) = @_;
3143: my $currentstring = '';
3144: if ($target eq 'web') {
3145: $currentstring = $token->[4];
3146: }
3147: return $currentstring;
3148: }
3149:
3150: sub end_blink {
3151: my ($target,$token) = @_;
3152: my $currentstring = '';
3153: if ($target eq 'web') {
3154: $currentstring = $token->[2];
3155: }
3156: return $currentstring;
3157: }
3158:
1.181 sakharuk 3159: #-- <blockquote> tag (end tag required)
1.122 albertel 3160: sub start_blockquote {
3161: my ($target,$token) = @_;
1.279 foxr 3162: my $currentstring = &end_p(); # Close any unclosed <p>
1.122 albertel 3163: if ($target eq 'web') {
1.277 foxr 3164: $currentstring .= $token->[4];
1.122 albertel 3165: }
3166: return $currentstring;
3167: }
3168:
3169: sub end_blockquote {
3170: my ($target,$token) = @_;
3171: my $currentstring = '';
3172: if ($target eq 'web') {
3173: $currentstring = $token->[2];
3174: }
3175: return $currentstring;
3176: }
3177:
1.181 sakharuk 3178: #-- <button> tag (end tag required)
1.122 albertel 3179: sub start_button {
3180: my ($target,$token) = @_;
3181: my $currentstring = '';
3182: if ($target eq 'web') {
3183: $currentstring = $token->[4];
3184: }
3185: return $currentstring;
3186: }
3187:
3188: sub end_button {
3189: my ($target,$token) = @_;
3190: my $currentstring = '';
3191: if ($target eq 'web') {
3192: $currentstring = $token->[2];
3193: }
3194: return $currentstring;
3195: }
3196:
1.181 sakharuk 3197: #-- <caption> tag (end tag required)
1.122 albertel 3198: sub start_caption {
3199: my ($target,$token) = @_;
3200: my $currentstring = '';
3201: if ($target eq 'web') {
3202: $currentstring = $token->[4];
3203: }
3204: return $currentstring;
3205: }
3206:
3207: sub end_caption {
3208: my ($target,$token) = @_;
3209: my $currentstring = '';
3210: if ($target eq 'web') {
3211: $currentstring = $token->[2];
3212: }
3213: return $currentstring;
3214: }
3215:
1.181 sakharuk 3216: #-- <col> tag (end tag forbdden)
1.122 albertel 3217: sub start_col {
3218: my ($target,$token) = @_;
3219: my $currentstring = '';
3220: if ($target eq 'web') {
3221: $currentstring = $token->[4];
3222: }
3223: return $currentstring;
3224: }
3225:
3226: sub end_col {
3227: my ($target,$token) = @_;
3228: my $currentstring = '';
3229: if ($target eq 'web') {
3230: $currentstring = $token->[2];
3231: }
3232: return $currentstring;
3233: }
3234:
1.181 sakharuk 3235: #-- <colgroup> tag (end tag optional)
1.122 albertel 3236: sub start_colgroup {
3237: my ($target,$token) = @_;
3238: my $currentstring = '';
3239: if ($target eq 'web') {
3240: $currentstring = $token->[4];
3241: }
3242: return $currentstring;
3243: }
3244:
3245: sub end_colgroup {
3246: my ($target,$token) = @_;
3247: my $currentstring = '';
3248: if ($target eq 'web') {
3249: $currentstring = $token->[2];
3250: }
3251: return $currentstring;
3252: }
3253:
1.181 sakharuk 3254: #-- <del> tag (end tag required)
1.122 albertel 3255: sub start_del {
3256: my ($target,$token) = @_;
3257: my $currentstring = '';
3258: if ($target eq 'web') {
3259: $currentstring = $token->[4];
3260: }
3261: return $currentstring;
3262: }
3263:
3264: sub end_del {
3265: my ($target,$token) = @_;
3266: my $currentstring = '';
3267: if ($target eq 'web') {
3268: $currentstring = $token->[2];
3269: }
3270: return $currentstring;
3271: }
3272:
1.181 sakharuk 3273: #-- <fieldset> tag (end tag required)
1.122 albertel 3274: sub start_fieldset {
3275: my ($target,$token) = @_;
3276: my $currentstring = '';
3277: if ($target eq 'web') {
3278: $currentstring = $token->[4];
3279: }
3280: return $currentstring;
3281: }
3282:
3283: sub end_fieldset {
3284: my ($target,$token) = @_;
3285: my $currentstring = '';
3286: if ($target eq 'web') {
3287: $currentstring = $token->[2];
3288: }
3289: return $currentstring;
3290: }
3291:
1.181 sakharuk 3292: #-- <frame> tag (end tag forbidden)
1.122 albertel 3293: sub start_frame {
3294: my ($target,$token) = @_;
3295: my $currentstring = '';
3296: if ($target eq 'web') {
3297: $currentstring = $token->[4];
3298: }
3299: return $currentstring;
3300: }
3301:
3302: sub end_frame {
3303: my ($target,$token) = @_;
3304: my $currentstring = '';
3305: if ($target eq 'web') {
3306: $currentstring = $token->[2];
3307: }
3308: return $currentstring;
3309: }
3310:
1.181 sakharuk 3311: #-- <iframe> tag (end tag required)
1.122 albertel 3312: sub start_iframe {
3313: my ($target,$token) = @_;
3314: my $currentstring = '';
3315: if ($target eq 'web') {
3316: $currentstring = $token->[4];
3317: }
3318: return $currentstring;
3319: }
3320:
3321: sub end_iframe {
3322: my ($target,$token) = @_;
3323: my $currentstring = '';
3324: if ($target eq 'web') {
3325: $currentstring = $token->[2];
3326: }
3327: return $currentstring;
3328: }
3329:
1.181 sakharuk 3330: #-- <ins> tag (end tag required)
1.122 albertel 3331: sub start_ins {
3332: my ($target,$token) = @_;
3333: my $currentstring = '';
3334: if ($target eq 'web') {
3335: $currentstring = $token->[4];
3336: }
3337: return $currentstring;
3338: }
3339:
3340: sub end_ins {
3341: my ($target,$token) = @_;
3342: my $currentstring = '';
3343: if ($target eq 'web') {
3344: $currentstring = $token->[2];
3345: }
3346: return $currentstring;
3347: }
3348:
1.181 sakharuk 3349: #-- <isindex> tag (end tag forbidden)
1.122 albertel 3350: sub start_isindex {
3351: my ($target,$token) = @_;
3352: my $currentstring = '';
3353: if ($target eq 'web') {
3354: $currentstring = $token->[4];
3355: }
3356: return $currentstring;
3357: }
3358:
3359: sub end_isindex {
3360: my ($target,$token) = @_;
3361: my $currentstring = '';
3362: if ($target eq 'web') {
3363: $currentstring = $token->[2];
3364: }
3365: return $currentstring;
3366: }
3367:
1.181 sakharuk 3368: #-- <keygen> tag (end tag forbidden)
1.122 albertel 3369: sub start_keygen {
3370: my ($target,$token) = @_;
3371: my $currentstring = '';
3372: if ($target eq 'web') {
3373: $currentstring = $token->[4];
3374: }
3375: return $currentstring;
3376: }
3377:
3378: sub end_keygen {
3379: my ($target,$token) = @_;
3380: my $currentstring = '';
3381: if ($target eq 'web') {
3382: $currentstring = $token->[2];
3383: }
3384: return $currentstring;
3385: }
3386:
3387: #-- <label> tag
3388: sub start_label {
3389: my ($target,$token) = @_;
3390: my $currentstring = '';
3391: if ($target eq 'web') {
3392: $currentstring = $token->[4];
3393: }
3394: return $currentstring;
3395: }
3396:
3397: sub end_label {
3398: my ($target,$token) = @_;
3399: my $currentstring = '';
3400: if ($target eq 'web') {
3401: $currentstring = $token->[2];
3402: }
3403: return $currentstring;
3404: }
3405:
1.181 sakharuk 3406: #-- <layer> tag (end tag required)
1.122 albertel 3407: sub start_layer {
3408: my ($target,$token) = @_;
3409: my $currentstring = '';
3410: if ($target eq 'web') {
3411: $currentstring = $token->[4];
3412: }
3413: return $currentstring;
3414: }
3415:
3416: sub end_layer {
3417: my ($target,$token) = @_;
3418: my $currentstring = '';
3419: if ($target eq 'web') {
3420: $currentstring = $token->[2];
3421: }
3422: return $currentstring;
3423: }
3424:
1.181 sakharuk 3425: #-- <legend> tag (end tag required)
1.122 albertel 3426: sub start_legend {
3427: my ($target,$token) = @_;
3428: my $currentstring = '';
3429: if ($target eq 'web') {
3430: $currentstring = $token->[4];
3431: }
3432: return $currentstring;
3433: }
3434:
3435: sub end_legend {
3436: my ($target,$token) = @_;
3437: my $currentstring = '';
3438: if ($target eq 'web') {
3439: $currentstring = $token->[2];
3440: }
3441: return $currentstring;
3442: }
3443:
1.181 sakharuk 3444: #-- <link> tag (end tag forbidden)
1.122 albertel 3445: sub start_link {
3446: my ($target,$token) = @_;
3447: my $currentstring = '';
3448: if ($target eq 'web') {
3449: $currentstring = $token->[4];
3450: }
3451: return $currentstring;
3452: }
3453:
3454: sub end_link {
3455: my ($target,$token) = @_;
3456: my $currentstring = '';
3457: if ($target eq 'web') {
3458: $currentstring = $token->[2];
3459: }
3460: return $currentstring;
3461: }
3462:
1.181 sakharuk 3463: #-- <marquee> tag (end tag optional)
1.122 albertel 3464: sub start_marquee {
3465: my ($target,$token) = @_;
3466: my $currentstring = '';
3467: if ($target eq 'web') {
3468: $currentstring = $token->[4];
3469: }
3470: return $currentstring;
3471: }
3472:
3473: sub end_marquee {
3474: my ($target,$token) = @_;
3475: my $currentstring = '';
3476: if ($target eq 'web') {
3477: $currentstring = $token->[2];
3478: }
3479: return $currentstring;
3480: }
3481:
1.179 sakharuk 3482: #-- <multicol> tag (end tag required)
3483: sub start_multicol {
1.122 albertel 3484: my ($target,$token) = @_;
1.279 foxr 3485: my $currentstring = &end_p(); # Close any pending <p>
1.122 albertel 3486: if ($target eq 'web') {
1.277 foxr 3487: $currentstring .= $token->[4];
1.122 albertel 3488: }
3489: return $currentstring;
3490: }
3491:
1.179 sakharuk 3492: sub end_multicol {
1.122 albertel 3493: my ($target,$token) = @_;
3494: my $currentstring = '';
3495: if ($target eq 'web') {
3496: $currentstring = $token->[2];
3497: }
3498: return $currentstring;
3499: }
3500:
1.179 sakharuk 3501: #-- <nobr> tag (end tag required)
1.122 albertel 3502: sub start_nobr {
3503: my ($target,$token) = @_;
3504: my $currentstring = '';
3505: if ($target eq 'web') {
3506: $currentstring = $token->[4];
1.179 sakharuk 3507: } elsif ($target eq 'tex') {
3508: $currentstring='\mbox{';
3509: }
1.122 albertel 3510: return $currentstring;
3511: }
3512:
3513: sub end_nobr {
3514: my ($target,$token) = @_;
3515: my $currentstring = '';
3516: if ($target eq 'web') {
3517: $currentstring = $token->[2];
1.179 sakharuk 3518: } elsif ($target eq 'tex') {
3519: $currentstring='}';
3520: }
1.122 albertel 3521: return $currentstring;
3522: }
3523:
1.179 sakharuk 3524: #-- <noembed> tag (end tag required)
1.122 albertel 3525: sub start_noembed {
3526: my ($target,$token) = @_;
3527: my $currentstring = '';
3528: if ($target eq 'web') {
3529: $currentstring = $token->[4];
3530: }
3531: return $currentstring;
3532: }
3533:
3534: sub end_noembed {
3535: my ($target,$token) = @_;
3536: my $currentstring = '';
3537: if ($target eq 'web') {
3538: $currentstring = $token->[2];
3539: }
3540: return $currentstring;
3541: }
3542:
1.179 sakharuk 3543: #-- <noframes> tag (end tag required)
1.122 albertel 3544: sub start_noframes {
3545: my ($target,$token) = @_;
3546: my $currentstring = '';
3547: if ($target eq 'web') {
3548: $currentstring = $token->[4];
3549: }
3550: return $currentstring;
3551: }
3552:
3553: sub end_noframes {
3554: my ($target,$token) = @_;
3555: my $currentstring = '';
3556: if ($target eq 'web') {
3557: $currentstring = $token->[2];
3558: }
3559: return $currentstring;
3560: }
3561:
1.179 sakharuk 3562: #-- <nolayer> tag (end tag required)
1.122 albertel 3563: sub start_nolayer {
3564: my ($target,$token) = @_;
3565: my $currentstring = '';
3566: if ($target eq 'web') {
3567: $currentstring = $token->[4];
3568: }
3569: return $currentstring;
3570: }
3571:
3572: sub end_nolayer {
3573: my ($target,$token) = @_;
3574: my $currentstring = '';
3575: if ($target eq 'web') {
3576: $currentstring = $token->[2];
3577: }
3578: return $currentstring;
3579: }
3580:
1.179 sakharuk 3581: #-- <noscript> tag (end tag required)
1.122 albertel 3582: sub start_noscript {
3583: my ($target,$token) = @_;
3584: my $currentstring = '';
3585: if ($target eq 'web') {
3586: $currentstring = $token->[4];
3587: }
3588: return $currentstring;
3589: }
3590:
3591: sub end_noscript {
3592: my ($target,$token) = @_;
3593: my $currentstring = '';
3594: if ($target eq 'web') {
3595: $currentstring = $token->[2];
3596: }
3597: return $currentstring;
3598: }
3599:
1.179 sakharuk 3600: #-- <object> tag (end tag required)
1.122 albertel 3601: sub start_object {
3602: my ($target,$token) = @_;
3603: my $currentstring = '';
3604: if ($target eq 'web') {
3605: $currentstring = $token->[4];
3606: }
3607: return $currentstring;
3608: }
3609:
3610: sub end_object {
3611: my ($target,$token) = @_;
3612: my $currentstring = '';
3613: if ($target eq 'web') {
3614: $currentstring = $token->[2];
3615: }
3616: return $currentstring;
3617: }
3618:
1.179 sakharuk 3619: #-- <optgroup> tag (end tag required)
1.122 albertel 3620: sub start_optgroup {
3621: my ($target,$token) = @_;
3622: my $currentstring = '';
3623: if ($target eq 'web') {
3624: $currentstring = $token->[4];
3625: }
3626: return $currentstring;
3627: }
3628:
3629: sub end_optgroup {
3630: my ($target,$token) = @_;
3631: my $currentstring = '';
3632: if ($target eq 'web') {
3633: $currentstring = $token->[2];
3634: }
3635: return $currentstring;
3636: }
3637:
1.179 sakharuk 3638: #-- <samp> tag (end tag required)
1.122 albertel 3639: sub start_samp {
3640: my ($target,$token) = @_;
3641: my $currentstring = '';
3642: if ($target eq 'web') {
3643: $currentstring = $token->[4];
1.179 sakharuk 3644: } elsif ($target eq 'tex') {
3645: $currentstring='\texttt{';
3646: }
1.122 albertel 3647: return $currentstring;
3648: }
3649:
3650: sub end_samp {
3651: my ($target,$token) = @_;
3652: my $currentstring = '';
3653: if ($target eq 'web') {
3654: $currentstring = $token->[2];
1.179 sakharuk 3655: } elsif ($target eq 'tex') {
3656: $currentstring='}';
3657: }
1.122 albertel 3658: return $currentstring;
3659: }
3660:
3661: #-- <server> tag
3662: sub start_server {
3663: my ($target,$token) = @_;
3664: my $currentstring = '';
3665: if ($target eq 'web') {
3666: $currentstring = $token->[4];
3667: }
3668: return $currentstring;
3669: }
3670:
3671: sub end_server {
3672: my ($target,$token) = @_;
3673: my $currentstring = '';
3674: if ($target eq 'web') {
3675: $currentstring = $token->[2];
3676: }
3677: return $currentstring;
3678: }
3679:
1.179 sakharuk 3680: #-- <spacer> tag (end tag forbidden)
1.122 albertel 3681: sub start_spacer {
3682: my ($target,$token) = @_;
1.279 foxr 3683: my $currentstring = &end_p(); # Close off any open <p> tag.
1.122 albertel 3684: if ($target eq 'web') {
1.277 foxr 3685: $currentstring .= $token->[4];
1.122 albertel 3686: }
3687: return $currentstring;
3688: }
3689:
3690: sub end_spacer {
3691: my ($target,$token) = @_;
3692: my $currentstring = '';
3693: if ($target eq 'web') {
3694: $currentstring = $token->[2];
3695: }
3696: return $currentstring;
3697: }
3698:
1.179 sakharuk 3699: #-- <span> tag (end tag required)
1.122 albertel 3700: sub start_span {
3701: my ($target,$token) = @_;
3702: my $currentstring = '';
3703: if ($target eq 'web') {
3704: $currentstring = $token->[4];
3705: }
3706: return $currentstring;
3707: }
3708:
3709: sub end_span {
3710: my ($target,$token) = @_;
3711: my $currentstring = '';
3712: if ($target eq 'web') {
3713: $currentstring = $token->[2];
3714: }
3715: return $currentstring;
3716: }
3717:
1.179 sakharuk 3718: #-- <tbody> tag (end tag optional)
1.122 albertel 3719: sub start_tbody {
3720: my ($target,$token) = @_;
3721: my $currentstring = '';
3722: if ($target eq 'web') {
3723: $currentstring = $token->[4];
3724: }
3725: return $currentstring;
3726: }
3727:
3728: sub end_tbody {
3729: my ($target,$token) = @_;
3730: my $currentstring = '';
3731: if ($target eq 'web') {
3732: $currentstring = $token->[2];
3733: }
3734: return $currentstring;
3735: }
3736:
1.166 sakharuk 3737: #-- <tfoot> tag (end tag optional)
1.122 albertel 3738: sub start_tfoot {
3739: my ($target,$token) = @_;
3740: my $currentstring = '';
3741: if ($target eq 'web') {
3742: $currentstring = $token->[4];
3743: }
3744: return $currentstring;
3745: }
3746:
3747: sub end_tfoot {
3748: my ($target,$token) = @_;
3749: my $currentstring = '';
3750: if ($target eq 'web') {
3751: $currentstring = $token->[2];
3752: }
3753: return $currentstring;
3754: }
3755:
1.166 sakharuk 3756: #-- <thead> tag (end tag optional)
1.122 albertel 3757: sub start_thead {
3758: my ($target,$token) = @_;
3759: my $currentstring = '';
3760: if ($target eq 'web') {
3761: $currentstring = $token->[4];
3762: }
3763: return $currentstring;
3764: }
1.10 www 3765:
1.122 albertel 3766: sub end_thead {
3767: my ($target,$token) = @_;
3768: my $currentstring = '';
3769: if ($target eq 'web') {
3770: $currentstring = $token->[2];
3771: }
3772: return $currentstring;
3773: }
1.119 www 3774:
1.122 albertel 3775: #-- <var> tag
3776: sub start_var {
1.44 sakharuk 3777: my ($target,$token) = @_;
3778: my $currentstring = '';
3779: if ($target eq 'web') {
1.122 albertel 3780: $currentstring = $token->[4];
1.163 sakharuk 3781: } elsif ($target eq 'tex') {
3782: $currentstring = '\textit{';
3783: }
1.44 sakharuk 3784: return $currentstring;
3785: }
1.10 www 3786:
1.122 albertel 3787: sub end_var {
3788: my ($target,$token) = @_;
1.44 sakharuk 3789: my $currentstring = '';
3790: if ($target eq 'web') {
1.163 sakharuk 3791: $currentstring = $token->[2];
3792: } elsif ($target eq 'tex') {
3793: $currentstring = '}';
1.44 sakharuk 3794: }
3795: return $currentstring;
3796: }
1.119 www 3797:
1.163 sakharuk 3798: #-- <wbr> tag (end tag forbidden)
1.122 albertel 3799: sub start_wbr {
3800: my ($target,$token) = @_;
3801: my $currentstring = '';
3802: if ($target eq 'web') {
3803: $currentstring = $token->[4];
3804: }
3805: return $currentstring;
1.98 albertel 3806: }
3807:
1.122 albertel 3808: sub end_wbr {
3809: my ($target,$token) = @_;
3810: my $currentstring = '';
3811: if ($target eq 'web') {
3812: $currentstring = $token->[2];
3813: }
3814: return $currentstring;
1.98 albertel 3815: }
1.134 sakharuk 3816:
3817: #-- <hideweboutput> tag
3818: sub start_hideweboutput {
3819: my ($target,$token) = @_;
3820: if ($target eq 'web') {
3821: &Apache::lonxml::startredirection();
3822: }
3823: return '';
3824: }
3825:
3826: sub end_hideweboutput {
3827: my ($target,$token) = @_;
3828: my $currentstring = '';
3829: if ($target eq 'web') {
3830: $currentstring = &Apache::lonxml::endredirection();
3831: }
3832: return '';
3833: }
3834:
1.94 sakharuk 3835:
3836: sub image_replication {
3837: my $src = shift;
1.187 albertel 3838: if (not -e $src) { &Apache::lonnet::repcopy($src); }
3839: #replicates eps or ps
3840: my $epssrc = my $pssrc = $src;
3841: $epssrc =~ s/\.(gif|jpg|jpeg|png)$/.eps/i;
3842: $pssrc =~ s/\.(gif|jpg|jpeg|png)$/.ps/i;
3843: if (not -e $epssrc && not -e $pssrc) {
3844: my $result=&Apache::lonnet::repcopy($epssrc);
1.264 raeburn 3845: if ($result ne 'ok') { &Apache::lonnet::repcopy($pssrc); }
1.94 sakharuk 3846: }
3847: return '';
1.195 sakharuk 3848: }
1.275 foxr 3849: #
3850: # Get correct sizing parameter for an image given
3851: # it's initial ht. and wid. This allows sizing of
3852: # images that are generated on-the-fly (e.g. gnuplot)
3853: # as well as serving as a utility for image_size.
3854: #
3855: # Parameter:
3856: # height_param
3857: # width_param - Initial picture dimensions.
3858: # scaling - A scale factor.
3859: # parstack, - the current stack of tag attributes
3860: # from the xml parser
3861: # safeeval, - pointer to the safespace
3862: # depth, - from what level in the stack to look for attributes
3863: # (assumes -1 if unspecified)
3864: # cis - look for attrubutes case insensitively
3865: # (assumes false)
3866: #
3867: # Returns:
3868: # height, width - new dimensions.
3869: #
3870: sub resize_image {
3871: my ($height_param, $width_param, $scaling,
3872: $parstack, $safeeval, $depth, $cis) = @_;
3873:
3874: # First apply the scaling...
1.271 foxr 3875:
1.275 foxr 3876: $height_param = $height_param * $scaling;
3877: $width_param = $width_param * $scaling;
1.261 foxr 3878:
1.197 sakharuk 3879: #do we have any specified LaTeX size of the picture?
1.261 foxr 3880: my $toget='TeXwidth';
3881: if ($cis) {
3882: $toget=lc($toget);
3883: }
1.256 albertel 3884: my $TeXwidth = &Apache::lonxml::get_param($toget,$parstack,
3885: $safeeval,$depth,$cis);
3886: $toget='TeXheight'; if ($cis) { $toget=lc($toget); }
3887: my $TeXheight = &Apache::lonxml::get_param($toget,$parstack,
3888: $safeeval,$depth,$cis);
1.197 sakharuk 3889: #do we have any specified web size of the picture?
3890: my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval,
1.256 albertel 3891: $depth,1);
3892: if ($TeXwidth) {
1.252 matthew 3893: my $old_width_param=$width_param;
1.197 sakharuk 3894: if ($TeXwidth=~/(\d+)\s*\%/) {
1.267 albertel 3895: $width_param = $1*$env{'form.textwidth'}/100;
1.197 sakharuk 3896: } else {
3897: $width_param = $TeXwidth;
3898: }
1.266 albertel 3899: if ($TeXheight) {
3900: $height_param = $TeXheight;
3901: } elsif ($old_width_param) {
3902: $height_param=$TeXwidth/$old_width_param*$height_param;
3903: }
1.256 albertel 3904: } elsif ($TeXheight) {
1.248 foxr 3905: $height_param = $TeXheight;
1.266 albertel 3906: if ($height_param) {
3907: $width_param = $TeXheight/$height_param*$width_param;
3908: }
1.256 albertel 3909: } elsif ($width) {
1.252 matthew 3910: my $old_width_param=$width_param;
1.256 albertel 3911: $width_param = $width*$scaling;
1.266 albertel 3912: if ($old_width_param) {
3913: $height_param=$width_param/$old_width_param*$height_param;
3914: }
1.252 matthew 3915: }
1.267 albertel 3916: if ($width_param > $env{'form.textwidth'}) {
1.252 matthew 3917: my $old_width_param=$width_param;
1.267 albertel 3918: $width_param =0.95*$env{'form.textwidth'};
1.266 albertel 3919: if ($old_width_param) {
3920: $height_param=$width_param/$old_width_param*$height_param;
3921: }
1.197 sakharuk 3922: }
1.275 foxr 3923:
3924: return ($height_param, $width_param);
3925: }
3926:
3927: sub image_size {
3928: my ($src,$scaling,$parstack,$safeeval,$depth,$cis)=@_;
3929:
3930: #size of image from gif/jpg/jpeg/png
3931: my $ressrc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
3932: if (-e $ressrc) {
3933: $src = $ressrc;
3934: }
3935: my $image = Image::Magick->new;
3936: my $current_figure = $image->Read($src);
3937: my $width_param = $image->Get('width');
3938: my $height_param = $image->Get('height');
3939: &Apache::lonxml::debug("Image magick says: $src : Height = $height_param width = $width_param");
3940: undef($image);
3941:
3942: ($height_param, $width_param) = &resize_image($height_param, $width_param,
3943: $scaling, $parstack, $safeeval,
3944: $depth, $cis);
3945:
1.248 foxr 3946: return ($height_param, $width_param);
3947: }
3948:
3949: sub image_width {
3950: my ($height, $width) = &image_size(@_);
3951: return $width;
3952: }
3953: # Not yet 100% sure this is correct in all circumstances..
3954: # due to my uncertainty about mods to image_size.
3955: #
3956: sub image_height {
3957: my ($height, $width) = &image_size(@_);
3958: return $height;
1.197 sakharuk 3959: }
3960:
1.256 albertel 3961: sub get_eps_image {
3962: my ($src)=@_;
1.261 foxr 3963: my $orig_src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1], $src);
1.275 foxr 3964: &Apache::lonxml::debug("get_eps_image: Original image: $orig_src");
1.282 foxr 3965: my ($spath, $sname, $sext) = fileparse($src, qr/\.(gif|png|jpg|jpeg)/i);
1.256 albertel 3966: $src=~s/\.(gif|png|jpg|jpeg)$/\.eps/i;
3967: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.275 foxr 3968: &Apache::lonxml::debug("Filelocation gives: $src");
1.256 albertel 3969: if (! -e $src) {
1.261 foxr 3970: &Apache::lonxml::debug("$src does not exist");
1.264 raeburn 3971: if (&Apache::lonnet::repcopy($src) ne 'ok' ) {
1.261 foxr 3972: &Apache::lonxml::debug("Repcopy of $src failed (1)");
1.256 albertel 3973: #if replication failed try to find ps file
3974: $src=~s/\.eps$/\.ps/;
1.261 foxr 3975: &Apache::lonxml::debug("Now looking for $src");
1.270 foxr 3976: #if no ps file try to replicate it.
3977: my $didrepcopy = &Apache::lonnet::repcopy($src);
3978: &Apache::lonxml::debug("repcopy of $src ... $didrepcopy");
3979: if ( (not -e $src) ||
3980: ($didrepcopy ne 'ok')) {
1.261 foxr 3981: &Apache::lonxml::debug("Failed to find or replicate $src");
3982:
1.256 albertel 3983: #if replication failed try to produce eps file dynamically
3984: $src=~s/\.ps$/\.eps/;
3985: my $temp_file;
1.267 albertel 3986: open(FILE,">>/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat");
1.256 albertel 3987: my $newsrc=$orig_src;
3988: $newsrc =~ s|(.*)/res/|/home/httpd/html/res/|;
1.275 foxr 3989: &Apache::lonxml::debug("queueing $newsrc for dynamic eps production.");
1.256 albertel 3990: print FILE "$newsrc\n";
1.261 foxr 3991: close FILE;
1.256 albertel 3992: $src=~s|/home/httpd/html/res|/home/httpd/prtspool|;
3993: $src=~s|/home/([^/]*)/public_html/|/home/httpd/prtspool/$1/|;
1.283 ! albertel 3994: if ($sext ne "") { # Put the ext. back in to uniquify.
! 3995: $src =~ s/\.eps$/$sext.eps/;
! 3996: }
1.256 albertel 3997: }
3998: }
3999: }
4000: my ($path,$file)=($src=~m|(.*)/([^/]*)$|);
1.261 foxr 4001: &Apache::lonxml::debug("get_eps_image returning: $path / $file<BR />");
1.256 albertel 4002: return ($path.'/',$file);
4003: }
4004:
1.195 sakharuk 4005: sub eps_generation {
4006: my ($src,$file,$width_param) = @_;
1.267 albertel 4007: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat";
1.195 sakharuk 4008: my $temp_file = Apache::File->new('>>'.$filename);
4009: print $temp_file "$src\n";
4010: my $newsrc = $src;
4011: $newsrc =~ s/(\.gif|\.jpg|\.jpeg)$/\.eps/i;
4012: $newsrc=~s/\/home\/httpd\/html\/res//;
4013: $newsrc=~s/\/home\/([^\/]*)\/public_html\//\/$1\//;
4014: $newsrc=~s/\/\.\//\//;
4015: $newsrc=~s/\/([^\/]+)\.(ps|eps)/\//;
1.213 sakharuk 4016: if ($newsrc=~/\/home\/httpd\/lonUsers\//) {
4017: $newsrc=~s/\/home\/httpd\/lonUsers//;
4018: $newsrc=~s/\/([^\/]+)\/(\w)\/(\w)\/(\w)\//\/$1\//;
4019: }
1.239 sakharuk 4020: if ($newsrc=~/\/userfiles\//) {
4021: return ' \graphicspath{{'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4022: } else {
4023: return ' \graphicspath{{/home/httpd/prtspool'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4024: }
1.197 sakharuk 4025: }
4026:
4027: sub file_path {
4028: my $src=shift;
4029: my ($file,$path);
4030: if ($src =~ m!(.*)/([^/]*)$!) {
4031: $file = $2;
4032: $path = $1.'/';
4033: }
4034: return $file,$path;
1.126 sakharuk 4035: }
4036:
4037: sub recalc {
4038: my $argument = shift;
4039: if (not $argument=~/(mm|cm|in|pc|pt)/) {return $argument.' mm';}
1.132 sakharuk 4040: $argument=~/\s*(\d+\.?\d*)\s*(mm|cm|in|pc|pt)/;
1.126 sakharuk 4041: my $value=$1;
4042: my $units=$2;
4043: if ($units eq 'cm') {
4044: $value*=10;
4045: } elsif ($units eq 'in') {
4046: $value*=25.4;
4047: } elsif ($units eq 'pc') {
4048: $value*=(25.4*12/72.27);
4049: } elsif ($units eq 'pt') {
4050: $value*=(25.4/72.27);
4051: }
4052: return $value.' mm';
1.94 sakharuk 4053: }
1.184 sakharuk 4054:
4055: sub LATEX_length {
4056: my $garbage=shift;
1.206 sakharuk 4057: $garbage=~s/^\s+$//;
4058: $garbage=~s/^\s+(\S.*)/$1/;#space before
4059: $garbage=~s/(.*\S)\s+$/$1/;#space after
4060: $garbage=~s/(\s)+/$1/;#only one space
4061: $garbage=~s/(\\begin{([^\}]+)}|\\end{([^\}]+)})//g;#remove LaTeX \begin{...} and \end{...}
4062: $garbage=~s/(\$\_\{|\$\_|\$\^{|\$\^|\}\$)//g;#remove $_{,$_,$^{,$^,}$
4063: $garbage=~s/([^\\])\$/$1/g;#$
4064: $garbage=~s/(\\ensuremath\{\_\{|\\ensuremath\{\_|\\ensuremath\{\^{|\\ensuremath\{\^|\})//g;#remove \ensuremath{...}
4065: $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 4066: $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;
4067: $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;
4068: $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 4069: $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;
4070: $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;
4071: $garbage=~s/(\\hat{([^}]+)}|\\check{([^}]+)}|\\dot{([^}]+)}|\\breve{([^}]+)}|\\acute{([^}]+)}|\\ddot{([^}]+)}|\\grave{([^}]+)}|\\tilde{([^}]+)}|\\mathring{([^}]+)}|\\bar{([^}]+)}|\\vec{([^}]+)})/$1/g;
4072: #remove some other LaTeX command
4073: $garbage=~s|\\(\w+)\\|\\|g;
4074: $garbage=~s|\\(\w+)(\s*)|$2|g;
4075: $garbage=~s|\+|11|g;
1.184 sakharuk 4076: my $value=length($garbage);
4077: return $value;
4078: }
4079:
4080:
4081:
1.94 sakharuk 4082:
1.1 sakharuk 4083: 1;
4084: __END__
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