Annotation of loncom/xml/londefdef.pm, revision 1.278
1.1 sakharuk 1: # The LearningOnline Network with CAPA
2: # Tags Default Definition Module
3: #
1.278 ! www 4: # $Id: londefdef.pm,v 1.277 2005/07/07 10:09:50 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);
1.54 sakharuk 50:
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) = @_;
1.277 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) = @_;
1.277 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 $currentstring;
596: }
597:
1.181 sakharuk 598: #-- <b> tag (end tag required)
1.122 albertel 599: sub start_b {
600: my ($target,$token) = @_;
601: my $currentstring = '';
602: if ($target eq 'web') {
603: $currentstring = $token->[4];
604: } elsif ($target eq 'tex') {
605: $currentstring = '\textbf{';
606: }
607: return $currentstring;
608: }
609:
610: sub end_b {
611: my ($target,$token) = @_;
612: my $currentstring = '';
613: if ($target eq 'web') {
614: $currentstring = $token->[2];
615: } elsif ($target eq 'tex') {
616: $currentstring = '}';
617: }
618: return $currentstring;
619: }
1.35 sakharuk 620:
1.181 sakharuk 621: #-- <strong> tag (end tag required)
1.122 albertel 622: sub start_strong {
623: my ($target,$token) = @_;
624: my $currentstring = '';
625: if ($target eq 'web') {
626: $currentstring = $token->[4];
627: } elsif ($target eq 'tex') {
628: $currentstring = '\textbf{';
629: }
630: return $currentstring;
631: }
632:
633: sub end_strong {
634: my ($target,$token) = @_;
635: my $currentstring = '';
1.182 sakharuk 636: if ($target eq 'web') {
1.122 albertel 637: $currentstring = $token->[2];
638: } elsif ($target eq 'tex') {
639: $currentstring = '}';
1.144 sakharuk 640: }
1.122 albertel 641: return $currentstring;
642: }
643:
1.181 sakharuk 644: #-- <h1> tag (end tag required)
1.122 albertel 645: sub start_h1 {
1.125 sakharuk 646: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 foxr 647: my $currentstring = &end_p; # Close off any prior para.
1.122 albertel 648: if ($target eq 'web') {
649: $currentstring .= $token->[4];
650: } elsif ($target eq 'tex') {
1.125 sakharuk 651: my $pre;
1.199 albertel 652: my $align=lc(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1));
1.212 sakharuk 653: if ($align eq 'center') {
1.125 sakharuk 654: $pre='\begin{center}';
655: } elsif ($align eq 'left') {
656: $pre='\rlap{';
657: } elsif ($align eq 'right') {
658: $pre=' \hfill \llap{';
659: }
660: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
661: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 662: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 663: } elsif ($target eq 'meta') {
1.277 foxr 664: $currentstring.='<subject>';
1.185 albertel 665: &start_output($target);
1.122 albertel 666: }
667: return $currentstring;
668: }
669:
670: sub end_h1 {
1.125 sakharuk 671: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 672: my $currentstring = '';
673: if ($target eq 'web') {
674: $currentstring .= $token->[2];
675: } elsif ($target eq 'tex') {
1.212 sakharuk 676: my $post='\vskip 0 mm ';
1.125 sakharuk 677: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 678: if ($align eq 'center') {
1.125 sakharuk 679: $post='\end{center}';
680: } elsif ($align eq 'left') {
681: $post='} \hfill'.'\vskip 0 mm ';
682: } elsif ($align eq 'right') {
683: $post='}'.'\vskip 0 mm ';
684: }
685: $currentstring .= '}}'.$post;
1.122 albertel 686: } elsif ($target eq 'meta') {
1.185 albertel 687: &end_output($target);
1.122 albertel 688: $currentstring='</subject>';
689: }
690: return $currentstring;
691: }
692:
1.35 sakharuk 693: #-- <h2> tag
1.122 albertel 694: sub start_h2 {
1.125 sakharuk 695: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 foxr 696: my $currentstring = &end_p; # Close off any prior para.
1.122 albertel 697: if ($target eq 'web') {
698: $currentstring .= $token->[4];
699: } elsif ($target eq 'tex') {
1.125 sakharuk 700: my $pre;
701: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 702: if ($align eq 'center') {
1.125 sakharuk 703: $pre='\begin{center}';
704: } elsif ($align eq 'left') {
705: $pre='\rlap{';
706: } elsif ($align eq 'right') {
707: $pre=' \hfill \llap{';
708: }
709: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
710: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 711: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 712: }
713: return $currentstring;
714: }
715:
716: sub end_h2 {
1.125 sakharuk 717: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 718: my $currentstring = '';
719: if ($target eq 'web') {
720: $currentstring .= $token->[2];
721: } elsif ($target eq 'tex') {
1.212 sakharuk 722: my $post='\vskip 0 mm ';
1.125 sakharuk 723: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 724: if ($align eq 'center') {
1.125 sakharuk 725: $post='\end{center}';
726: } elsif ($align eq 'left') {
727: $post='} \hfill'.'\vskip 0 mm ';
728: } elsif ($align eq 'right') {
729: $post='}'.'\vskip 0 mm ';
730: }
731: $currentstring .= '}}'.$post;
1.122 albertel 732: }
733: return $currentstring;
734: }
735:
1.35 sakharuk 736: #-- <h3> tag
1.122 albertel 737: sub start_h3 {
1.125 sakharuk 738: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 foxr 739: my $currentstring = &end_p; # Close off any prior para.
1.122 albertel 740: if ($target eq 'web') {
741: $currentstring .= $token->[4];
742: } elsif ($target eq 'tex') {
1.125 sakharuk 743: my $pre;
744: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 745: if ($align eq 'center') {
1.125 sakharuk 746: $pre='\begin{center}';
747: } elsif ($align eq 'left') {
748: $pre='\rlap{';
749: } elsif ($align eq 'right') {
750: $pre=' \hfill \llap{';
751: }
752: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
753: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 754: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 755: }
756: return $currentstring;
757: }
758:
759: sub end_h3 {
1.125 sakharuk 760: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 761: my $currentstring = '';
762: if ($target eq 'web') {
763: $currentstring .= $token->[2];
764: } elsif ($target eq 'tex') {
1.212 sakharuk 765: my $post='\vskip 0 mm ';
1.125 sakharuk 766: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 767: if ($align eq 'center') {
1.125 sakharuk 768: $post='\end{center}';
769: } elsif ($align eq 'left') {
770: $post='} \hfill'.'\vskip 0 mm ';
771: } elsif ($align eq 'right') {
772: $post='}'.'\vskip 0 mm ';
773: }
774: $currentstring .= '}}'.$post;
1.122 albertel 775: }
776: return $currentstring;
777: }
778:
1.35 sakharuk 779: #-- <h4> tag
1.122 albertel 780: sub start_h4 {
1.125 sakharuk 781: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 foxr 782: my $currentstring = &end_p; # Close off any prior para.
1.122 albertel 783: if ($target eq 'web') {
784: $currentstring .= $token->[4];
785: } elsif ($target eq 'tex') {
1.125 sakharuk 786: my $pre;
787: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 788: if ($align eq 'center') {
1.125 sakharuk 789: $pre='\begin{center}';
790: } elsif ($align eq 'left') {
791: $pre='\rlap{';
792: } elsif ($align eq 'right') {
793: $pre=' \hfill \llap{';
794: }
795: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
796: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 797: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 798: }
799: return $currentstring;
800: }
801:
802: sub end_h4 {
1.125 sakharuk 803: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 804: my $currentstring = '';
805: if ($target eq 'web') {
806: $currentstring .= $token->[2];
807: } elsif ($target eq 'tex') {
1.212 sakharuk 808: my $post='\vskip 0 mm ';
1.125 sakharuk 809: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 810: if ($align eq 'center') {
1.125 sakharuk 811: $post='\end{center}';
812: } elsif ($align eq 'left') {
813: $post='} \hfill'.'\vskip 0 mm ';
814: } elsif ($align eq 'right') {
815: $post='}'.'\vskip 0 mm ';
816: }
817: $currentstring .= '}}'.$post;
1.122 albertel 818: }
819: return $currentstring;
820: }
821:
1.35 sakharuk 822: #-- <h5> tag
1.122 albertel 823: sub start_h5 {
1.125 sakharuk 824: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 foxr 825: my $currentstring = &end_p; # Close off any prior paras.
1.122 albertel 826: if ($target eq 'web') {
827: $currentstring .= $token->[4];
828: } elsif ($target eq 'tex') {
1.125 sakharuk 829: my $pre;
830: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 831: if ($align eq 'center') {
1.125 sakharuk 832: $pre='\begin{center}';
833: } elsif ($align eq 'left') {
834: $pre='\rlap{';
835: } elsif ($align eq 'right') {
836: $pre=' \hfill \llap{';
837: }
838: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
839: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 840: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 841: }
842: return $currentstring;
843: }
844:
845: sub end_h5 {
1.125 sakharuk 846: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 847: my $currentstring = '';
848: if ($target eq 'web') {
849: $currentstring .= $token->[2];
850: } elsif ($target eq 'tex') {
1.212 sakharuk 851: my $post='\vskip 0 mm ';
1.125 sakharuk 852: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 853: if ($align eq 'center') {
1.125 sakharuk 854: $post='\end{center}';
855: } elsif ($align eq 'left') {
856: $post='} \hfill'.'\vskip 0 mm ';
857: } elsif ($align eq 'right') {
858: $post='}'.'\vskip 0 mm ';
859: }
860: $currentstring .= '}}'.$post;
1.122 albertel 861: }
862: return $currentstring;
863: }
864:
1.35 sakharuk 865: #-- <h6> tag
1.122 albertel 866: sub start_h6 {
1.125 sakharuk 867: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 foxr 868: my $currentstring = &end_p; # Close off any prior paras.
1.122 albertel 869: if ($target eq 'web') {
870: $currentstring .= $token->[4];
871: } elsif ($target eq 'tex') {
1.125 sakharuk 872: my $pre;
873: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 874: if ($align eq 'center') {
1.125 sakharuk 875: $pre='\begin{center}';
876: } elsif ($align eq 'left') {
877: $pre='\rlap{';
878: } elsif ($align eq 'right') {
879: $pre=' \hfill \llap{';
880: }
881: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
882: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 883: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 884: }
885: return $currentstring;
886: }
887:
888: sub end_h6 {
1.125 sakharuk 889: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 890: my $currentstring = '';
891: if ($target eq 'web') {
892: $currentstring .= $token->[2];
893: } elsif ($target eq 'tex') {
1.212 sakharuk 894: my $post='\vskip 0 mm ';
1.125 sakharuk 895: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 896: if ($align eq 'center') {
1.125 sakharuk 897: $post='\end{center}';
898: } elsif ($align eq 'left') {
899: $post='} \hfill'.'\vskip 0 mm ';
900: } elsif ($align eq 'right') {
901: $post='}'.'\vskip 0 mm ';
902: }
903: $currentstring .= '}}'.$post;
1.122 albertel 904: }
905: return $currentstring;
906: }
907:
1.181 sakharuk 908: #--- <cite> tag (end tag required)
1.122 albertel 909: sub start_cite {
910: my ($target,$token) = @_;
911: my $currentstring = '';
912: if ($target eq 'web') {
913: $currentstring .= $token->[4];
914: } elsif ($target eq 'tex') {
1.179 sakharuk 915: $currentstring .= '\textit{';
1.144 sakharuk 916: }
1.122 albertel 917: return $currentstring;
918: }
919:
920: sub end_cite {
921: my ($target,$token) = @_;
922: my $currentstring = '';
923: if ($target eq 'web') {
924: $currentstring .= $token->[2];
925: } elsif ($target eq 'tex') {
1.179 sakharuk 926: $currentstring .= '}';
1.144 sakharuk 927: }
1.122 albertel 928: return $currentstring;
929: }
930:
1.181 sakharuk 931: #-- <i> tag (end tag required)
1.122 albertel 932: sub start_i {
933: my ($target,$token) = @_;
934: my $currentstring = '';
935: if ($target eq 'web') {
936: $currentstring .= $token->[4];
937: } elsif ($target eq 'tex') {
938: $currentstring .= '\textit{';
1.144 sakharuk 939: }
1.122 albertel 940: return $currentstring;
941: }
942:
943: sub end_i {
944: my ($target,$token) = @_;
945: my $currentstring = '';
946: if ($target eq 'web') {
947: $currentstring .= $token->[2];
948: } elsif ($target eq 'tex') {
949: $currentstring .= '}';
950: }
951: return $currentstring;
952: }
953:
1.181 sakharuk 954: #-- <address> tag (end tag required)
1.122 albertel 955: sub start_address {
956: my ($target,$token) = @_;
957: my $currentstring = '';
958: if ($target eq 'web') {
959: $currentstring .= $token->[4];
960: } elsif ($target eq 'tex') {
1.179 sakharuk 961: $currentstring .= '\textit{';
1.144 sakharuk 962: }
1.122 albertel 963: return $currentstring;
964: }
965:
966: sub end_address {
967: my ($target,$token) = @_;
968: my $currentstring = '';
969: if ($target eq 'web') {
970: $currentstring .= $token->[2];
971: } elsif ($target eq 'tex') {
1.179 sakharuk 972: $currentstring .= '}';
1.122 albertel 973: }
974: return $currentstring;
975: }
976:
1.181 sakharuk 977: #-- <dfn> tag (end tag required)
1.122 albertel 978: sub start_dfn {
979: my ($target,$token) = @_;
980: my $currentstring = '';
981: if ($target eq 'web') {
982: $currentstring .= $token->[4];
983: } elsif ($target eq 'tex') {
1.179 sakharuk 984: $currentstring .= '\textit{';
1.122 albertel 985: }
986: return $currentstring;
987: }
988:
989: sub end_dfn {
990: my ($target,$token) = @_;
991: my $currentstring = '';
992: if ($target eq 'web') {
993: $currentstring .= $token->[2];
994: } elsif ($target eq 'tex') {
1.179 sakharuk 995: $currentstring .= '}';
1.144 sakharuk 996: }
1.122 albertel 997: return $currentstring;
998: }
999:
1.181 sakharuk 1000: #-- <tt> tag (end tag required)
1.122 albertel 1001: sub start_tt {
1002: my ($target,$token) = @_;
1003: my $currentstring = '';
1004: if ($target eq 'web') {
1005: $currentstring .= $token->[4];
1006: } elsif ($target eq 'tex') {
1007: $currentstring .= '\texttt{';
1.144 sakharuk 1008: }
1.122 albertel 1009: return $currentstring;
1010: }
1011:
1012: sub end_tt {
1013: my ($target,$token) = @_;
1014: my $currentstring = '';
1015: if ($target eq 'web') {
1016: $currentstring .= $token->[2];
1017: } elsif ($target eq 'tex') {
1018: $currentstring .= '}';
1019: }
1020: return $currentstring;
1021: }
1022:
1.181 sakharuk 1023: #-- <kbd> tag (end tag required)
1.122 albertel 1024: sub start_kbd {
1025: my ($target,$token) = @_;
1026: my $currentstring = '';
1027: if ($target eq 'web') {
1028: $currentstring .= $token->[4];
1029: } elsif ($target eq 'tex') {
1.179 sakharuk 1030: $currentstring .= '\texttt{';
1.144 sakharuk 1031: }
1.122 albertel 1032: return $currentstring;
1033: }
1034:
1035: sub end_kbd {
1036: my ($target,$token) = @_;
1037: my $currentstring = '';
1038: if ($target eq 'web') {
1039: $currentstring .= $token->[2];
1040: } elsif ($target eq 'tex') {
1.179 sakharuk 1041: $currentstring .= '}';
1.144 sakharuk 1042: }
1.122 albertel 1043: return $currentstring;
1044: }
1045:
1.181 sakharuk 1046: #-- <code> tag (end tag required)
1.122 albertel 1047: sub start_code {
1048: my ($target,$token) = @_;
1049: my $currentstring = '';
1050: if ($target eq 'web') {
1051: $currentstring .= $token->[4];
1052: } elsif ($target eq 'tex') {
1053: $currentstring .= '\texttt{';
1054: }
1055: return $currentstring;
1056: }
1057:
1058: sub end_code {
1059: my ($target,$token) = @_;
1060: my $currentstring = '';
1061: if ($target eq 'web') {
1062: $currentstring .= $token->[2];
1063: } elsif ($target eq 'tex') {
1064: $currentstring .= '}';
1065: }
1066: return $currentstring;
1067: }
1068:
1.181 sakharuk 1069: #-- <em> tag (end tag required)
1.122 albertel 1070: sub start_em {
1071: my ($target,$token) = @_;
1072: my $currentstring = '';
1073: if ($target eq 'web') {
1074: $currentstring .= $token->[4];
1075: } elsif ($target eq 'tex') {
1076: $currentstring .= '\emph{';
1.144 sakharuk 1077: }
1.122 albertel 1078: return $currentstring;
1079: }
1080:
1081: sub end_em {
1082: my ($target,$token) = @_;
1083: my $currentstring = '';
1084: if ($target eq 'web') {
1085: $currentstring .= $token->[2];
1086: } elsif ($target eq 'tex') {
1087: $currentstring .= '}';
1.144 sakharuk 1088: }
1.122 albertel 1089: return $currentstring;
1090: }
1091:
1.181 sakharuk 1092: #-- <q> tag (end tag required)
1.122 albertel 1093: sub start_q {
1094: my ($target,$token) = @_;
1095: my $currentstring = '';
1096: if ($target eq 'web') {
1097: $currentstring .= $token->[4];
1098: } elsif ($target eq 'tex') {
1.179 sakharuk 1099: $currentstring .= '\emph{';
1.122 albertel 1100: }
1101: return $currentstring;
1102: }
1103:
1104: sub end_q {
1105: my ($target,$token) = @_;
1106: my $currentstring = '';
1107: if ($target eq 'web') {
1108: $currentstring .= $token->[2];
1109: } elsif ($target eq 'tex') {
1.179 sakharuk 1110: $currentstring .= '}';
1.144 sakharuk 1111: }
1.122 albertel 1112: return $currentstring;
1113: }
1114:
1.277 foxr 1115: # <p> is a bit strange since it does not require a closing </p>
1116: # However in latex, we must often output closing stuff to end
1117: # environments and {}'s etc. Therefore we do all the work
1118: # of figuring out the ending strings in the start tag processing,
1119: # and provide a mechanism to output the stop text external
1120: # to tag processing.
1121: #
1122: {
1123:
1124: my $closing_string = ''; # String required to close <p>
1125:
1.181 sakharuk 1126: #-- <p> tag (end tag optional)
1.198 sakharuk 1127: #optional attribute - align="center|left|right"
1.122 albertel 1128: sub start_p {
1.157 sakharuk 1129: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 foxr 1130: my $currentstring = &end_p; # close off prior para if in progress.
1.122 albertel 1131: if ($target eq 'web') {
1132: $currentstring .= $token->[4];
1.277 foxr 1133: $closing_string = '</p>'; # Not sure this is correct.
1.122 albertel 1134: } elsif ($target eq 'tex') {
1.198 sakharuk 1135: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1136: if ($align eq 'center') {
1.277 foxr 1137: $currentstring .='\begin{center}\par';
1138: $closing_string = '\end{center}';
1.198 sakharuk 1139: } elsif ($align eq 'right') {
1.277 foxr 1140: $currentstring.='\makebox['.$env{'form.textwidth'}.']{\hfill\llap{';
1141: $closing_string= '}}';
1.198 sakharuk 1142: } elsif ($align eq 'left') {
1.277 foxr 1143: $currentstring.='\noindent\makebox['.$env{'form.textwidth'}.']{\rlap{';
1144: $closing_string = '}\hfill}';
1.216 matthew 1145: } else {
1.277 foxr 1146: $currentstring.='\par ';
1147: $closing_string = '\strut\\\\\strut';
1.216 matthew 1148: }
1.198 sakharuk 1149: my $signal=1;#<p> does not work inside <b>...</b>
1.277 foxr 1150: foreach my $tag (@$tagstack) {
1151: if (lc($tag) eq 'b') {
1152: $signal=0;
1153: }
1154: }
1155: if (!$signal) {
1156: $currentstring = &end_p; # Just close the prior? Not sure this is correct
1157: $closing_string = ''; # Probably correct?
1.198 sakharuk 1158: }
1.277 foxr 1159:
1.144 sakharuk 1160: }
1.122 albertel 1161: return $currentstring;
1162: }
1.277 foxr 1163: #
1164: # End paragraph processing just requires that we output the
1165: # closing string that was saved and blank it.
1166: sub end_p {
1167: my $current_string = $closing_string;
1168: $closing_string = ''; # Not in a para anymore.
1169: return $current_string;
1.122 albertel 1170:
1171: }
1.277 foxr 1172: }
1.181 sakharuk 1173: #-- <br> tag (end tag forbidden)
1.122 albertel 1174: sub start_br {
1175: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1176: my $currentstring = '';
1177: if ($target eq 'web') {
1178: $currentstring .= $token->[4];
1179: } elsif ($target eq 'tex') {
1.227 sakharuk 1180: my @tempo=@$tagstack;
1.229 sakharuk 1181: my $signal=0;
1.227 sakharuk 1182: for (my $i=$#tempo;$i>=0;$i--) {
1183: if (($tempo[$i] eq 'b') || ($tempo[$i] eq 'strong') ||
1.230 sakharuk 1184: ($tempo[$i] eq 'ol') || ($tempo[$i] eq 'ul') ||
1185: ($tempo[$i] eq 'td') || ($tempo[$i] eq 'th')) {
1.229 sakharuk 1186: $signal=1;
1.227 sakharuk 1187: last;
1188: }
1189: }
1.229 sakharuk 1190: if ($signal) {
1.219 sakharuk 1191: $currentstring .= ' \vskip 0 mm ';
1192: } elsif ($$tagstack[-2] ne 'sub' && $$tagstack[-2] ne 'sup') {
1193: $currentstring .= '\strut \\\\ \strut ';
1.1 sakharuk 1194: }
1.144 sakharuk 1195: }
1.122 albertel 1196: return $currentstring;
1197: }
1198:
1199: sub end_br {
1200: my ($target,$token) = @_;
1201: my $currentstring = '';
1202: if ($target eq 'web') {
1203: $currentstring .= $token->[2];
1204: }
1205: return $currentstring;
1206: }
1207:
1.181 sakharuk 1208: #-- <big> tag (end tag required)
1.122 albertel 1209: sub start_big {
1210: my ($target,$token) = @_;
1211: my $currentstring = '';
1212: if ($target eq 'web') {
1213: $currentstring .= $token->[4];
1214: } elsif ($target eq 'tex') {
1.137 sakharuk 1215: $currentstring .= '{\large ';
1.144 sakharuk 1216: }
1.122 albertel 1217: return $currentstring;
1218: }
1219:
1220: sub end_big {
1221: my ($target,$token) = @_;
1222: my $currentstring = '';
1223: if ($target eq 'web') {
1224: $currentstring .= $token->[2];
1225: } elsif ($target eq 'tex') {
1226: $currentstring .= '}';
1227: }
1228: return $currentstring;
1229: }
1230:
1.181 sakharuk 1231: #-- <small> tag (end tag required)
1.122 albertel 1232: sub start_small {
1233: my ($target,$token) = @_;
1234: my $currentstring = '';
1235: if ($target eq 'web') {
1236: $currentstring .= $token->[4];
1237: } elsif ($target eq 'tex') {
1238: $currentstring .= '{\footnotesize ';
1.144 sakharuk 1239: }
1.122 albertel 1240: return $currentstring;
1241: }
1242:
1243: sub end_small {
1244: my ($target,$token) = @_;
1245: my $currentstring = '';
1246: if ($target eq 'web') {
1247: $currentstring .= $token->[2];
1248: } elsif ($target eq 'tex') {
1249: $currentstring .= '}';
1250: }
1251: return $currentstring;
1252: }
1253:
1.181 sakharuk 1254: #-- <basefont> tag (end tag forbidden)
1.122 albertel 1255: sub start_basefont {
1.126 sakharuk 1256: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.122 albertel 1257: my $currentstring = '';
1258: if ($target eq 'web') {
1259: $currentstring = $token->[4];
1.126 sakharuk 1260: } elsif ($target eq 'tex') {
1261: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1262: if (defined $basesize) {
1263: $currentstring = '{\\'.$basesize.' ';
1264: }
1265: }
1.122 albertel 1266: return $currentstring;
1267: }
1268:
1269: sub end_basefont {
1.126 sakharuk 1270: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1271: my $currentstring = '';
1272: if ($target eq 'web') {
1273: $currentstring = $token->[4];
1.126 sakharuk 1274: } elsif ($target eq 'tex') {
1275: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1276: if (defined $basesize) {
1277: $currentstring = '}';
1278: }
1279: }
1.122 albertel 1280: return $currentstring;
1281: }
1282:
1.181 sakharuk 1283: #-- <font> tag (end tag required)
1.122 albertel 1284: sub start_font {
1285: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1286: my $currentstring = '';
1287: if ($target eq 'web') {
1288: my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
1.204 albertel 1289: if ($face!~/symbol/i) {
1.267 albertel 1290: if (($env{'browser.fontenhance'} eq 'on') ||
1291: ($env{'browser.blackwhite'} eq 'on')) { return ''; }
1.155 www 1292: }
1.122 albertel 1293: $currentstring = $token->[4];
1.126 sakharuk 1294: } elsif ($target eq 'tex') {
1295: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1296: if (defined $fontsize) {
1297: $currentstring = '{\\'.$fontsize.' ';
1298: }
1299: }
1.122 albertel 1300: return $currentstring;
1301: }
1302:
1303: sub end_font {
1304: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1305: my $currentstring = '';
1306: if ($target eq 'web') {
1307: $currentstring = $token->[2];
1.126 sakharuk 1308: } elsif ($target eq 'tex') {
1309: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1310: if (defined $fontsize) {
1311: $currentstring = '}';
1312: }
1313: }
1.122 albertel 1314: return $currentstring;
1315: }
1316:
1.181 sakharuk 1317: #-- <strike> tag (end tag required)
1.122 albertel 1318: sub start_strike {
1319: my ($target,$token) = @_;
1320: my $currentstring = '';
1321: if ($target eq 'web') {
1322: $currentstring .= $token->[4];
1323: } elsif ($target eq 'tex') {
1324: &Apache::lonxml::startredirection();
1325: }
1326: return $currentstring;
1327: }
1328:
1329: sub end_strike {
1330: my ($target,$token) = @_;
1331: my $currentstring = '';
1332: if ($target eq 'web') {
1333: $currentstring .= $token->[2];
1334: } elsif ($target eq 'tex') {
1335: $currentstring=&Apache::lonxml::endredirection();
1336: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1337: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1338: $currentstring=~s/(\S)\s*$/$1\}/;
1339: }
1340: return $currentstring;
1341: }
1342:
1.181 sakharuk 1343: #-- <s> tag (end tag required)
1.122 albertel 1344: sub start_s {
1345: my ($target,$token) = @_;
1346: my $currentstring = '';
1347: if ($target eq 'web') {
1348: $currentstring .= $token->[4];
1349: } elsif ($target eq 'tex') {
1350: &Apache::lonxml::startredirection();
1351: }
1352: return $currentstring;
1353: }
1354:
1355: sub end_s {
1356: my ($target,$token) = @_;
1357: my $currentstring = '';
1358: if ($target eq 'web') {
1359: $currentstring .= $token->[2];
1360: } elsif ($target eq 'tex') {
1361: $currentstring=&Apache::lonxml::endredirection();
1362: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1363: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1364: $currentstring=~s/(\S)\s*$/$1\}/;
1365: }
1366: return $currentstring;
1367: }
1368:
1.181 sakharuk 1369: #-- <sub> tag (end tag required)
1.122 albertel 1370: sub start_sub {
1371: my ($target,$token) = @_;
1372: my $currentstring = '';
1373: if ($target eq 'web') {
1374: $currentstring .= $token->[4];
1375: } elsif ($target eq 'tex') {
1.202 sakharuk 1376: $currentstring .= '\ensuremath{_{';
1.122 albertel 1377: }
1378: return $currentstring;
1379: }
1380:
1381: sub end_sub {
1382: my ($target,$token) = @_;
1383: my $currentstring = '';
1384: if ($target eq 'web') {
1385: $currentstring .= $token->[2];
1386: } elsif ($target eq 'tex') {
1.202 sakharuk 1387: $currentstring .= '}}';
1.122 albertel 1388: }
1389: return $currentstring;
1390: }
1391:
1.181 sakharuk 1392: #-- <sup> tag (end tag required)
1.122 albertel 1393: sub start_sup {
1394: my ($target,$token) = @_;
1395: my $currentstring = '';
1396: if ($target eq 'web') {
1397: $currentstring .= $token->[4];
1398: } elsif ($target eq 'tex') {
1.202 sakharuk 1399: $currentstring .= '\ensuremath{^{';
1.122 albertel 1400: }
1401: return $currentstring;
1402: }
1403:
1404: sub end_sup {
1405: my ($target,$token) = @_;
1406: my $currentstring = '';
1407: if ($target eq 'web') {
1408: $currentstring .= $token->[2];
1409: } elsif ($target eq 'tex') {
1.202 sakharuk 1410: $currentstring .= '}}';
1.122 albertel 1411: }
1412: return $currentstring;
1413: }
1414:
1.181 sakharuk 1415: #-- <hr> tag (end tag forbidden)
1.122 albertel 1416: sub start_hr {
1.124 sakharuk 1417: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 foxr 1418: my $currentstring = &end_p; # End enclosing para.
1.122 albertel 1419: if ($target eq 'web') {
1420: $currentstring .= $token->[4];
1421: } elsif ($target eq 'tex') {
1.149 sakharuk 1422: my $LaTeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1.124 sakharuk 1423: if (defined $LaTeXwidth) {
1424: if ($LaTeXwidth=~/^%/) {
1425: substr($LaTeXwidth,0,1)='';
1426: $LaTeXwidth=($LaTeXwidth/100).'\textwidth';
1427: }
1428: } else {
1.148 sakharuk 1429: $LaTeXwidth ='0.9\textwidth';
1.124 sakharuk 1430: }
1431: my ($pre,$post);
1432: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1433: if (($align eq 'center') || (not defined $align)) {
1434: $pre=''; $post='';
1435: } elsif ($align eq 'left') {
1436: $pre='\rlap{'; $post='} \hfill';
1437: } elsif ($align eq 'right') {
1438: $pre=' \hfill \llap{'; $post='}';
1439: }
1.148 sakharuk 1440: $currentstring .= ' \vskip 0 mm \noindent\makebox['.$LaTeXwidth.']{'.$pre.'\makebox['.
1.124 sakharuk 1441: $LaTeXwidth.'][b]{\hrulefill}'.$post.'}\vskip 0 mm ';
1.122 albertel 1442: }
1443: return $currentstring;
1444: }
1445:
1446: sub end_hr {
1447: my ($target,$token) = @_;
1448: my $currentstring = '';
1449: if ($target eq 'web') {
1450: $currentstring .= $token->[2];
1.148 sakharuk 1451: }
1.122 albertel 1452: return $currentstring;
1453: }
1454:
1.181 sakharuk 1455: #-- <div> tag (end tag required)
1.122 albertel 1456: sub start_div {
1457: my ($target,$token) = @_;
1.277 foxr 1458: my $currentstring = &end_p; # Close enclosing para.
1.122 albertel 1459: if ($target eq 'web') {
1460: $currentstring .= $token->[4];
1461: }
1462: return $currentstring;
1463: }
1464:
1465: sub end_div {
1466: my ($target,$token) = @_;
1467: my $currentstring = '';
1468: if ($target eq 'web') {
1469: $currentstring .= $token->[2];
1470: }
1471: return $currentstring;
1472: }
1473:
1.181 sakharuk 1474: #-- <a> tag (end tag required)
1.122 albertel 1475: sub start_a {
1.149 sakharuk 1476: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1477: my $currentstring = '';
1478: if ($target eq 'web') {
1.250 albertel 1479: my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
1480: undef,1);
1481: $currentstring=&Apache::lonenc::encrypt_ref($token,{'href'=>$href});
1.122 albertel 1482: } elsif ($target eq 'tex') {
1.149 sakharuk 1483: my $a=&Apache::lonxml::get_param('href',$parstack,$safeeval,undef,1);
1.161 sakharuk 1484: my $b=&Apache::lonxml::get_param('name',$parstack,$safeeval,undef,1);
1485: if ($a=~/\S/) {
1486: $a=~s/([^\\])%/$1\\\%/g;
1487: $currentstring .= '\ref{URI: '.$a.'}';
1488: } elsif ($b=~/\S/) {
1489: $currentstring .= '\ref{Anchor: '.$b.'}';
1490: } else {
1491: $currentstring.='';
1492: }
1.122 albertel 1493: }
1494: return $currentstring;
1495: }
1496:
1497: sub end_a {
1.168 albertel 1498: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1499: my $currentstring = '';
1500: if ($target eq 'web') {
1501: $currentstring .= $token->[2];
1502: }
1503: return $currentstring;
1504: }
1505:
1.181 sakharuk 1506: #-- <li> tag (end tag optional)
1.122 albertel 1507: sub start_li {
1.168 albertel 1508: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1509: my $currentstring = '';
1510: if ($target eq 'web') {
1511: $currentstring = $token->[4];
1512: } elsif ($target eq 'tex') {
1.237 sakharuk 1513: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1514: my $value=&Apache::lonxml::get_param('value',$parstack,$safeeval,undef,0);
1.238 albertel 1515: #FIXME need to support types i and I
1516: if ($type=~/disc/) {
1517: $currentstring .= ' \item[$\bullet$] ';
1518: } elsif ($type=~/circle/) {
1519: $currentstring .= ' \item[$\circ$] ';
1.146 sakharuk 1520: } elsif ($type=~/square/) {
1.238 albertel 1521: $currentstring .= ' \item[$\diamond$] ';
1522: } elsif ($type eq '1') {
1523: $currentstring .= ' \item['.($Apache::londefdef::list_index+1).'.]';
1.237 sakharuk 1524: } elsif ($type eq 'A') {
1.238 albertel 1525: $currentstring .= ' \item['.('A'..'Z')[$Apache::londefdef::list_index].'.]';
1.237 sakharuk 1526: } elsif ($type eq 'a') {
1.238 albertel 1527: $currentstring .= ' \item['.('a'..'z')[$Apache::londefdef::list_index].'.]';
1.237 sakharuk 1528: } elsif ($value ne '') {
1529: $currentstring .= ' \item['.$value.'] ';
1.122 albertel 1530: } else {
1.146 sakharuk 1531: $currentstring .= ' \item ';
1.122 albertel 1532: }
1.238 albertel 1533: $Apache::londefdef::list_index++;
1534: }
1.122 albertel 1535: return $currentstring;
1536: }
1537:
1538: sub end_li {
1539: my ($target,$token) = @_;
1.277 foxr 1540: my $currentstring = &end_p; # In case there's a <p> in the <li>
1.122 albertel 1541: if ($target eq 'web') {
1.277 foxr 1542: $currentstring .= $token->[2];
1.122 albertel 1543: }
1544: return $currentstring;
1545: }
1546:
1.181 sakharuk 1547: #-- <u> tag (end tag required)
1.122 albertel 1548: sub start_u {
1549: my ($target,$token) = @_;
1550: my $currentstring = '';
1551: if ($target eq 'web') {
1552: $currentstring .= $token->[4];
1553: } elsif ($target eq 'tex') {
1554: &Apache::lonxml::startredirection();
1555: }
1556: return $currentstring;
1557: }
1558:
1559: sub end_u {
1560: my ($target,$token) = @_;
1561: my $currentstring = '';
1562: if ($target eq 'web') {
1563: $currentstring .= $token->[2];
1564: } elsif ($target eq 'tex') {
1565: $currentstring=&Apache::lonxml::endredirection();
1566: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1567: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1568: $currentstring=~s/(\S)\s*$/$1\}/;
1569: }
1570: return $currentstring;
1571: }
1572:
1.181 sakharuk 1573: #-- <ul> tag (end tag required)
1.122 albertel 1574: sub start_ul {
1.125 sakharuk 1575: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 foxr 1576: my $currentstring = &end_p; # Close off enclosing list.
1.122 albertel 1577: if ($target eq 'web') {
1.277 foxr 1578: $currentstring .= $token->[4];
1.122 albertel 1579: } elsif ($target eq 'tex') {
1.125 sakharuk 1580: my $TeXtype=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1.238 albertel 1581: $Apache::londefdef::list_index=0;
1.125 sakharuk 1582: if ($TeXtype eq 'disc') {
1.222 sakharuk 1583: $currentstring .= '\renewcommand{\labelitemi}{$\bullet$}'.
1584: '\renewcommand{\labelitemii}{$\bullet$}'.
1585: '\renewcommand{\labelitemiii}{$\bullet$}'.
1586: '\renewcommand{\labelitemiv}{$\bullet$}';
1.125 sakharuk 1587: } elsif ($TeXtype eq 'circle') {
1.222 sakharuk 1588: $currentstring .= '\renewcommand{\labelitemi}{$\circ$}'.
1589: '\renewcommand{\labelitemii}{$\circ$}'.
1590: '\renewcommand{\labelitemiii}{$\circ$}'.
1591: '\renewcommand{\labelitemiv}{$\circ$}';
1.125 sakharuk 1592: } elsif ($TeXtype eq 'square') {
1.222 sakharuk 1593: $currentstring .= '\renewcommand{\labelitemi}{$\diamond$}'.
1594: '\renewcommand{\labelitemii}{$\diamond$}'.
1595: '\renewcommand{\labelitemiii}{$\diamond$}'.
1596: '\renewcommand{\labelitemiv}{$\diamond$}';
1.125 sakharuk 1597: }
1.222 sakharuk 1598: $currentstring .= '\strut \begin{itemize}';
1.122 albertel 1599: }
1600: return $currentstring;
1601: }
1602:
1603: sub end_ul {
1604: my ($target,$token) = @_;
1605: my $currentstring = '';
1606: if ($target eq 'web') {
1607: $currentstring = $token->[2];
1608: } elsif ($target eq 'tex') {
1.222 sakharuk 1609: $currentstring = '\end{itemize} \renewcommand{\labelitemi}{$\bullet$}'.
1610: '\renewcommand{\labelitemii}{$\bullet$}'.
1611: '\renewcommand{\labelitemiii}{$\bullet$}'.
1612: '\renewcommand{\labelitemiv}{$\bullet$}\strut ';
1.122 albertel 1613: }
1614: return $currentstring;
1615: }
1616:
1.181 sakharuk 1617: #-- <menu> tag (end tag required)
1.122 albertel 1618: sub start_menu {
1619: my ($target,$token) = @_;
1620: my $currentstring = '';
1621: if ($target eq 'web') {
1622: $currentstring = $token->[4];
1623: } elsif ($target eq 'tex') {
1624: $currentstring = " \\begin{itemize} ";
1625: }
1626: return $currentstring;
1627: }
1628:
1629: sub end_menu {
1630: my ($target,$token) = @_;
1631: my $currentstring = '';
1632: if ($target eq 'web') {
1633: $currentstring = $token->[2];
1634: } elsif ($target eq 'tex') {
1635: $currentstring = " \\end{itemize}";
1636: }
1637: return $currentstring;
1638: }
1639:
1.181 sakharuk 1640: #-- <dir> tag (end tag required)
1.122 albertel 1641: sub start_dir {
1642: my ($target,$token) = @_;
1.277 foxr 1643: my $currentstring = &end_p; # In case there's a <p> prior to the list.
1.122 albertel 1644: if ($target eq 'web') {
1.277 foxr 1645: $currentstring .= $token->[4];
1.122 albertel 1646: } elsif ($target eq 'tex') {
1.277 foxr 1647: $currentstring .= " \\begin{itemize} ";
1.122 albertel 1648: }
1649: return $currentstring;
1650: }
1651:
1652: sub end_dir {
1653: my ($target,$token) = @_;
1654: my $currentstring = '';
1655: if ($target eq 'web') {
1656: $currentstring = $token->[2];
1657: } elsif ($target eq 'tex') {
1658: $currentstring = " \\end{itemize}";
1659: }
1660: return $currentstring;
1661: }
1662:
1.181 sakharuk 1663: #-- <ol> tag (end tag required)
1.122 albertel 1664: sub start_ol {
1.125 sakharuk 1665: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 foxr 1666: my $currentstring = &end_p; # In case there's a <p> prior to the list.
1.122 albertel 1667: if ($target eq 'web') {
1.277 foxr 1668: $currentstring .= $token->[4];
1.122 albertel 1669: } elsif ($target eq 'tex') {
1.238 albertel 1670: $Apache::londefdef::list_index=0;
1.125 sakharuk 1671: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1672: if ($type eq '1') {
1.222 sakharuk 1673: $currentstring .= '\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1674: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1675: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1676: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}';
1.125 sakharuk 1677: } elsif ($type eq 'A') {
1.222 sakharuk 1678: $currentstring .= '\renewcommand{\labelenumi}{\Alph{enumi}.}'.
1679: '\renewcommand{\labelenumii}{\Alph{enumii}.}'.
1680: '\renewcommand{\labelenumiii}{\Alph{enumiii}.}'.
1681: '\renewcommand{\labelenumiv}{\Alph{enumiv}.}';
1.125 sakharuk 1682: } elsif ($type eq 'a') {
1.222 sakharuk 1683: $currentstring .= '\renewcommand{\labelenumi}{\alph{enumi}.}'.
1684: '\renewcommand{\labelenumii}{\alph{enumii}.}'.
1685: '\renewcommand{\labelenumiii}{\alph{enumiii}.}'.
1686: '\renewcommand{\labelenumiv}{\alph{enumiv}.}';
1.125 sakharuk 1687: } elsif ($type eq 'i') {
1.222 sakharuk 1688: $currentstring .= '\renewcommand{\labelenumi}{\roman{enumi}.}'.
1689: '\renewcommand{\labelenumii}{\roman{enumii}.}'.
1690: '\renewcommand{\labelenumiii}{\roman{enumiii}.}'.
1691: '\renewcommand{\labelenumiv}{\roman{enumiv}.}';
1.125 sakharuk 1692: } elsif ($type eq 'I') {
1.222 sakharuk 1693: $currentstring .= '\renewcommand{\labelenumi}{\Roman{enumi}.}'.
1694: '\renewcommand{\labelenumii}{\Roman{enumii}.}'.
1695: '\renewcommand{\labelenumiii}{\Roman{enumiii}.}'.
1696: '\renewcommand{\labelenumiv}{\Roman{enumiv}.}';
1.125 sakharuk 1697: }
1.222 sakharuk 1698: $currentstring .= '\strut \begin{enumerate}';
1.122 albertel 1699: }
1700: return $currentstring;
1701: }
1702:
1703: sub end_ol {
1704: my ($target,$token) = @_;
1705: my $currentstring = '';
1706: if ($target eq 'web') {
1707: $currentstring = $token->[2];
1708: } elsif ($target eq 'tex') {
1.222 sakharuk 1709: $currentstring = '\end{enumerate}\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1710: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1711: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1712: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}\strut ';
1.122 albertel 1713: }
1714: return $currentstring;
1715: }
1716:
1.181 sakharuk 1717: #-- <dl> tag (end tag required)
1.122 albertel 1718: sub start_dl {
1719: my ($target,$token) = @_;
1.277 foxr 1720: my $currentstring = &end_p; # In case there's a <p> unclosed prior to the list.
1.122 albertel 1721: if ($target eq 'web') {
1.277 foxr 1722: $currentstring .= $token->[4];
1.122 albertel 1723: } elsif ($target eq 'tex') {
1.277 foxr 1724: $currentstring .= '\begin{description}';
1.243 albertel 1725: $Apache::londefdef::DL++;
1726: push(@Apache::londefdef::description,[]);
1727: $Apache::londefdef::DD[$Apache::londefdef::DL]=0;
1728: $Apache::londefdef::DT[$Apache::londefdef::DL]=0;
1.244 albertel 1729: $Apache::londefdef::seenDT[$Apache::londefdef::DL]=0;
1.122 albertel 1730: }
1731: return $currentstring;
1732: }
1733:
1734: sub end_dl {
1.174 sakharuk 1735: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1736: my $currentstring = '';
1737: if ($target eq 'web') {
1738: $currentstring = $token->[2];
1739: } elsif ($target eq 'tex') {
1.243 albertel 1740: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1741: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
1742: foreach my $element (@{$Apache::londefdef::description[-1]}) {
1.174 sakharuk 1743: $currentstring.=' '.$element.' ';
1744: }
1.243 albertel 1745: pop(@Apache::londefdef::description);
1.174 sakharuk 1746: $currentstring.='\end{description}';
1.243 albertel 1747: delete($Apache::londefdef::DD[$Apache::londefdef::DL]);
1748: delete($Apache::londefdef::DT[$Apache::londefdef::DL]);
1.244 albertel 1749: delete($Apache::londefdef::seenDT[$Apache::londefdef::DL]);
1.243 albertel 1750: $Apache::londefdef::DL--;
1.122 albertel 1751: }
1752: return $currentstring;
1753: }
1754:
1.172 sakharuk 1755: #-- <dt> tag (end tag optional)
1.122 albertel 1756: sub start_dt {
1.172 sakharuk 1757: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1758: my $currentstring='';
1.122 albertel 1759: if ($target eq 'web') {
1760: $currentstring = $token->[4];
1761: } elsif ($target eq 'tex') {
1.243 albertel 1762: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1763: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
1.174 sakharuk 1764: &Apache::lonxml::startredirection();
1.243 albertel 1765: $Apache::londefdef::DT[-1]++;
1.244 albertel 1766: $Apache::londefdef::seenDT[-1]=1;
1.122 albertel 1767: }
1768: return $currentstring;
1769: }
1770:
1771: sub end_dt {
1.172 sakharuk 1772: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1773: my $currentstring = '';
1774: if ($target eq 'web') {
1775: $currentstring = $token->[2];
1776: } elsif ($target eq 'tex') {
1.243 albertel 1777: if ($Apache::londefdef::DT[-1]) {
1778: my $data=&item_cleanup();
1.244 albertel 1779: push(@{$Apache::londefdef::description[-1]},'\item['.$data.'] \strut \vskip 0mm');
1.243 albertel 1780: $Apache::londefdef::DT[-1]--;
1781: }
1.122 albertel 1782: }
1783: return $currentstring;
1784: }
1785:
1.173 sakharuk 1786: sub item_cleanup {
1.174 sakharuk 1787: my $item=&Apache::lonxml::endredirection();
1.173 sakharuk 1788: $item=~s/\\begin{center}//g;
1789: $item=~s/\\end{center}//g;
1790: return $item;
1791: }
1792:
1.181 sakharuk 1793: #-- <dd> tag (end tag optional)
1.122 albertel 1794: sub start_dd {
1.147 sakharuk 1795: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1796: my $currentstring = '';
1797: if ($target eq 'web') {
1798: $currentstring = $token->[4];
1.147 sakharuk 1799: } elsif ($target eq 'tex') {
1.243 albertel 1800: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1801: if ($Apache::londefdef::DD[-1]) { &end_dd(@_);}
1.244 albertel 1802: if (!$Apache::londefdef::seenDT[-1]) {
1803: push(@{$Apache::londefdef::description[-1]},'\item[\strut] \strut \vskip 0mm ');
1804: }
1.243 albertel 1805: push(@{$Apache::londefdef::description[-1]},'');
1806: $Apache::londefdef::description[-1]->[-1].=' \strut ';
1807: $Apache::londefdef::DD[-1]++;
1.174 sakharuk 1808: &Apache::lonxml::startredirection();
1.122 albertel 1809: }
1810: return $currentstring;
1811: }
1812:
1813: sub end_dd {
1.174 sakharuk 1814: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1815: my $currentstring = '';
1816: if ($target eq 'web') {
1817: $currentstring = $token->[2];
1.174 sakharuk 1818: } elsif ($target eq 'tex') {
1.243 albertel 1819: $Apache::londefdef::description[-1]->[-1].=
1820: &Apache::lonxml::endredirection().' \vskip 0mm ';
1821: $Apache::londefdef::DD[-1]--;
1.174 sakharuk 1822: }
1.122 albertel 1823: return $currentstring;
1824: }
1825:
1.181 sakharuk 1826: #-- <table> tag (end tag required)
1.277 foxr 1827: # <table> also ends any prior <p> that is not closed.
1828: # but, unless I allow <p>'s to nest, that's the
1829: # only way I could think of to allow <p> in
1830: # <tr> <th> bodies
1831: #
1.206 sakharuk 1832: #list of supported attributes: border,width,TeXwidth
1.91 sakharuk 1833: sub start_table {
1834: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 foxr 1835: my $textwidth = '';
1836: my $currentstring = &end_p;
1.91 sakharuk 1837: if ($target eq 'web') {
1.277 foxr 1838: $currentstring .= $token->[4];
1.91 sakharuk 1839: } elsif ($target eq 'tex') {
1840: my $aa = {};
1841: push @Apache::londefdef::table, $aa;
1842: $Apache::londefdef::table[-1]{'row_number'} = -1;
1.222 sakharuk 1843: #maximum table's width (default coincides with text line length)
1.206 sakharuk 1844: if ($#Apache::londefdef::table==0) {
1.267 albertel 1845: $textwidth=&recalc($env{'form.textwidth'}); #result is always in mm
1.206 sakharuk 1846: $textwidth=~/(\d+\.?\d*)/;
1847: $textwidth=0.95*$1; #accounts "internal" LaTeX space for table frame
1848: } else {
1849: if ($Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}]=~/\d/) {
1850: #the maximum width of nested table is determined by LATeX width of parent cell
1851: $textwidth=$Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}];
1852: } else {
1853: #try to use all space not used before (minus 5% for LaTeX table internal) - rather silly
1.228 sakharuk 1854: $textwidth=$Apache::londefdef::table[-2]{'width'};
1.206 sakharuk 1855: for (my $i=0;$i<$Apache::londefdef::table[-2]{'counter_columns'};$i++) {
1856: $textwidth=$textwidth-$Apache::londefdef::table[-2]{'TeXlen'}[0][$i];
1857: }
1858: }
1859: }
1.126 sakharuk 1860: my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1861: if (not defined $TeXwidth) {
1862: my $htmlwidth = &Apache::lonxml::get_param('width',$parstack,$safeeval,undef,1);
1863: if ($htmlwidth=~/%/) {
1.203 sakharuk 1864: $Apache::londefdef::table[-1]{'percent'}=1;
1.126 sakharuk 1865: $htmlwidth=~/(\d+)/;
1.203 sakharuk 1866: $Apache::londefdef::table[-1]{'width'}=$1*$textwidth/100;;
1.126 sakharuk 1867: } else {
1868: $Apache::londefdef::table[-1]{'width'}=$textwidth;
1869: }
1870: } elsif ($TeXwidth=~/%/) {
1.203 sakharuk 1871: $Apache::londefdef::table[-1]{'percent'}=1;
1.126 sakharuk 1872: $TeXwidth=~/(\d+)/;
1.206 sakharuk 1873: $Apache::londefdef::table[-1]{'width'}=$1*$textwidth/100;
1.126 sakharuk 1874: } else {
1.222 sakharuk 1875: $Apache::londefdef::table[-1]{'forcetablewidth'}=1;
1.206 sakharuk 1876: $Apache::londefdef::table[-1]{'width'}=$TeXwidth;
1.126 sakharuk 1877: }
1878: #table's border
1.206 sakharuk 1879: my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval);
1.208 sakharuk 1880: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
1.91 sakharuk 1881: unless (defined $border) { $border = 0; }
1882: if ($border) {
1883: $Apache::londefdef::table[-1]{'hinc'} = '\hline ';
1884: $Apache::londefdef::table[-1]{'vinc'} = '&';
1885: $Apache::londefdef::table[-1]{'vvinc'} = '|';
1886: } else {
1887: $Apache::londefdef::table[-1]{'hinc'} = '';
1888: $Apache::londefdef::table[-1]{'vinc'} = '&';
1889: $Apache::londefdef::table[-1]{'vvinc'} = '';
1890: }
1.206 sakharuk 1891: if ($#Apache::londefdef::table==0) {
1.218 sakharuk 1892: $Apache::londefdef::table[-1]{'output'}='\strut\newline\strut\setlength{\tabcolsep}{1 mm}';
1.206 sakharuk 1893: }
1894: $Apache::londefdef::table[-1]{'output'}.=' \noindent \begin{tabular} ';
1895: $Apache::londefdef::table[-1]{'TeXlen'}=[];
1896: $Apache::londefdef::table[-1]{'objectlen'}=[];
1.229 sakharuk 1897: $Apache::londefdef::table[-1]{'objectsignal'}=[];
1.206 sakharuk 1898: $Apache::londefdef::table[-1]{'maxlen'}=[];
1899: $Apache::londefdef::table[-1]{'minlen'}=[];
1900: $Apache::londefdef::table[-1]{'content'}=[];
1901: $Apache::londefdef::table[-1]{'align'}=[];
1.277 foxr 1902: $currentstring.='\keephidden{NEW TABLE ENTRY}';
1.206 sakharuk 1903: }
1.91 sakharuk 1904: return $currentstring;
1905: }
1.122 albertel 1906:
1907: sub end_table {
1908: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1909: my $currentstring = '';
1910: if ($target eq 'web') {
1911: $currentstring = $token->[2];
1912: } elsif ($target eq 'tex') {
1913: my $inmemory = '';
1914: my $output = '';
1.206 sakharuk 1915: my $WARNING='';
1916: #width of columns from TeXwidth attributes
1917: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1918: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
1919: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]<$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn]) {
1920: $Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]=$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn];
1921: }
1922: }
1923: }
1924: #free space and number of empty columns
1925: my ($available_space,$empty_columns)=($Apache::londefdef::table[-1]{'width'},0);
1.228 sakharuk 1926: if ($#Apache::londefdef::table ne 0) {$available_space=0.9*$available_space;}
1.206 sakharuk 1927: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
1928: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]==0) {
1929: $empty_columns++;
1930: } else {
1931: $available_space=$available_space-$Apache::londefdef::table[-1]{'TeXlen'}[0][$jn];
1932: }
1933: }
1934: #boundaries for contents columns
1935: my @min_len=();#columns can not be narrower
1936: my @max_len=();#maximum length of column
1937: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
1938: my ($localmin,$localmax)=(0,0);
1939: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1940: if ($localmin<$Apache::londefdef::table[-1]{'minlen'}[$in][$jn]) {
1941: $localmin=$Apache::londefdef::table[-1]{'minlen'}[$in][$jn];
1942: }
1943: if ($localmax<$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn]) {
1944: $localmax=$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn];
1945: }
1946: }
1947: push @min_len, $localmin;
1948: push @max_len, $localmax;
1.122 albertel 1949: }
1.206 sakharuk 1950: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
1951: my $localmin=0,;
1952: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1953: if ($localmin<$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn]) {
1954: $localmin=$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn];
1955: }
1956: }
1.229 sakharuk 1957: if ($max_len[$jn]<$localmin) {
1958: $max_len[$jn]=$localmin;
1959: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
1960: }#object size is bigger
1961: if ($min_len[$jn]<$localmin) {
1962: $min_len[$jn]=$localmin;
1963: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
1964: }#object size is bigger
1.206 sakharuk 1965: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]!=0) {
1966: $min_len[$jn]=0;
1967: $max_len[$jn]=0;
1968: }
1969: }
1970: #final adjustment of column width
1971: my @fwidth=@{$Apache::londefdef::table[-1]{'TeXlen'}[0]};#final width array
1972: my @adjust=();
1973: #step 1. adjustment by maximum value
1974: my $space_neeeded=0;
1975: for (my $jn=0;$jn<=$#max_len;$jn++) {
1976: $space_neeeded=$space_neeeded+$max_len[$jn];
1977: }
1978: if ($space_neeeded<=$available_space) {
1979: for (my $jn=0;$jn<=$#max_len;$jn++) {
1980: if ($fwidth[$jn]==0) {
1981: $fwidth[$jn]=$max_len[$jn];
1.53 sakharuk 1982: }
1.51 sakharuk 1983: }
1.206 sakharuk 1984: } else {
1985: #step 2. adjustment by minimum value (estimation)
1986: $space_neeeded=0;
1987: for (my $jn=0;$jn<=$#min_len;$jn++) {
1988: $space_neeeded+=$min_len[$jn];
1989: }
1990: if ($space_neeeded>$available_space) {
1991: $WARNING=' \textbf{NOT ENOUGH SPACE FOR TABLE} ';
1992: for (my $jn=0;$jn<=$#max_len;$jn++) {
1993: if ($fwidth[$jn]==0) {
1994: $fwidth[$jn]=$min_len[$jn];
1995: }
1996: }
1.229 sakharuk 1997: #check if we have objects which can be scaled
1998: my $how_many_to_scale=0;
1999: my @to_scale=();
2000: for (my $jn=0;$jn<=$#max_len;$jn++) {
2001: if ($Apache::londefdef::table[-1]{'objectsignal'}[$jn] eq '1') {
2002: $how_many_to_scale++;
2003: push @to_scale, $jn;
2004: }
2005: }
2006: if ($how_many_to_scale>0) {
2007: my $space_to_adjust=($space_neeeded-$available_space)/$how_many_to_scale;
2008: foreach my $jn (@to_scale) {
2009: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2010: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/;
2011: if ($1 ne '') {
2012: my $current_length=&recalc($1);
2013: $current_length=~/(\d+\.?\d*)/;
2014: $current_length=$current_length-$space_to_adjust;
2015: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/width=$current_length mm/;
2016: }
2017: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/\[(\d+\.?\d*)\s*mm\]/;
2018: if ($1 ne '') {
2019: my $current_length=$1;
2020: $current_length=$current_length-$space_to_adjust;
2021: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/\[(\d+\.?\d*)\s*mm\]/\[$current_length mm\]/;
2022: }
2023: }
2024: $fwidth[$jn]=$fwidth[$jn]-$space_to_adjust;
2025: }
2026: }
1.206 sakharuk 2027: } else {
2028: #step 3. adjustment over minimal + corrections
2029: my $enlarge_coef=$available_space/$space_neeeded;
2030: my $acsessive=0;
2031: for (my $jn=0;$jn<=$#min_len;$jn++) {
2032: $adjust[$jn]=$min_len[$jn]*$enlarge_coef;
2033: if ($adjust[$jn]>$max_len[$jn]) {
2034: $fwidth[$jn]=$max_len[$jn];
2035: $acsessive=$acsessive+$adjust[$jn]-$max_len[$jn];
2036: $adjust[$jn]=0;
2037: }
2038: }
2039: if ($acsessive>0) {
2040: #we have an excess of space and can redistribute it
2041: my $notempty_columns=0;
2042: for (my $jn=0;$jn<=$#min_len;$jn++) {
2043: if ($adjust[$jn]!=0) {
2044: $notempty_columns++;
2045: }
2046: }
2047: my $per_column=$acsessive/$notempty_columns;
2048: for (my $jn=0;$jn<=$#min_len;$jn++) {
2049: if ($adjust[$jn]!=0) {
2050: $adjust[$jn]+=$per_column;
2051: $fwidth[$jn]=$adjust[$jn];
2052: }
1.223 sakharuk 2053: }
2054: } else {
2055: for (my $jn=0;$jn<=$#min_len;$jn++) {
2056: $fwidth[$jn]=$adjust[$jn];
1.206 sakharuk 2057: }
2058: }
1.203 sakharuk 2059: }
2060: }
1.222 sakharuk 2061: #use all available width if it is defined in % or as TeXwidth
2062: if (($Apache::londefdef::table[-1]{'percent'}==1) || ($Apache::londefdef::table[-1]{'forcetablewidth'}==1)) {
1.203 sakharuk 2063: my $current=0;
1.206 sakharuk 2064: for (my $i=0;$i<=$#fwidth;$i++) {
2065: $current+=$fwidth[$i];
1.203 sakharuk 2066: }
2067: my $coef=$Apache::londefdef::table[-1]{'width'}/$current;
1.206 sakharuk 2068: for (my $i=0;$i<=$#fwidth;$i++) {
2069: $fwidth[$i]*=$coef;
2070: }
2071: }
2072: #removing of empty columns if allowed
1.208 sakharuk 2073: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
1.206 sakharuk 2074: if ($permission eq 'yes') {
2075: my @cleaned_table=();
2076: my @cleaned_header=();
2077: my $colind=0;
2078: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2079: if ($fwidth[$jn]!=0) {
2080: #we need to copy column
2081: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2082: $cleaned_table[$in][$colind]=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
2083: $cleaned_header[$colind]=$fwidth[$jn];
2084: }
2085: $colind++;
2086: }
1.122 albertel 2087: }
1.206 sakharuk 2088: $Apache::londefdef::table[-1]{'content'}=\@cleaned_table;
2089: @fwidth=@cleaned_header;
1.122 albertel 2090: }
1.206 sakharuk 2091: #construct header of the table
2092: my $header_of_table = '{'.$Apache::londefdef::table[-1]{'vvinc'};
2093: for (my $in=0;$in<=$#fwidth;$in++) {
2094: $header_of_table.='p{'.$fwidth[$in].' mm}'.$Apache::londefdef::table[-1]{'vvinc'};
2095: }
2096: $header_of_table .= '}';
1.126 sakharuk 2097: #fill the table
2098: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1.206 sakharuk 2099: for (my $jn=0;$jn<=$#fwidth;$jn++) {
2100: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
1.228 sakharuk 2101: $output.='\vspace*{-6 mm}\begin{center}';
1.206 sakharuk 2102: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
2103: $output.=' \hfill \llap{'
2104: }
2105: $output.=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
2106: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
1.228 sakharuk 2107: $output.='\end{center}\vspace*{-6 mm}';
1.206 sakharuk 2108: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
2109: $output.='} ';
2110: }
2111: if ($jn!=$#fwidth) {$output.=' '.$Apache::londefdef::table[-1]{'vinc'};}
2112: }
2113: $output.=' \\\\ '.$Apache::londefdef::table[-1]{'hinc'}.' ';
1.122 albertel 2114: }
1.218 sakharuk 2115: $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut\newline\strut ';
1.127 sakharuk 2116: if ($#Apache::londefdef::table > 0) {
2117: my $inmemory = $Apache::londefdef::table[-1]{'output'};
2118: pop @Apache::londefdef::table;
1.129 sakharuk 2119: push @{$Apache::londefdef::table[-1]{'include'}}, $inmemory;
1.127 sakharuk 2120: } else {
2121: $currentstring .= $Apache::londefdef::table[-1]{'output'};
2122: pop @Apache::londefdef::table;
1.143 sakharuk 2123: undef @Apache::londefdef::table;
1.127 sakharuk 2124: }
1.122 albertel 2125: }
2126: return $currentstring;
2127: }
2128:
1.166 sakharuk 2129: #-- <tr> tag (end tag optional)
1.122 albertel 2130: sub start_tr {
2131: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2132: my $currentstring = '';
2133: if ($target eq 'web') {
2134: $currentstring = $token->[4];
2135: } elsif ($target eq 'tex') {
2136: $Apache::londefdef::table[-1]{'row_number'}++;
1.206 sakharuk 2137: my $alignchar=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.122 albertel 2138: if ($alignchar ne '') {
1.206 sakharuk 2139: push @ {$Apache::londefdef::table[-1]{'rows'} },substr($alignchar,0,1);
1.122 albertel 2140: } else {
2141: push @ {$Apache::londefdef::table[-1]{'rows'} }, 'l';
2142: }
2143: push ( @{ $Apache::londefdef::table[-1]{'rowdata'} }, $Apache::londefdef::table[-1]{'hinc'});
2144: $Apache::londefdef::table[-1]{'counter_columns'} = -1;
1.206 sakharuk 2145: push @ {$Apache::londefdef::table[-1]{'TeXlen'}}, [];
2146: push @ {$Apache::londefdef::table[-1]{'objectlen'}}, [];
2147: push @ {$Apache::londefdef::table[-1]{'minlen'}}, [];
2148: push @ {$Apache::londefdef::table[-1]{'maxlen'}}, [];
2149: push @ {$Apache::londefdef::table[-1]{'content'}}, [];
1.122 albertel 2150: }
2151: return $currentstring;
2152: }
2153:
2154: sub end_tr {
1.160 sakharuk 2155: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 foxr 2156: my $currentstring = &end_p; # Close any pending <p> in the row.
1.122 albertel 2157: if ($target eq 'web') {
1.277 foxr 2158: $currentstring .= $token->[2];
1.122 albertel 2159: } elsif ($target eq 'tex') {
1.160 sakharuk 2160: if ($Apache::londefdef::TD_redirection) {
2161: &end_td_tex($parstack,$parser,$safeeval);
2162: }
1.122 albertel 2163: }
2164: return $currentstring;
2165: }
2166:
1.166 sakharuk 2167: #-- <td> tag (end tag optional)
1.122 albertel 2168: sub start_td {
2169: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2170: my $currentstring = '';
2171: if ($target eq 'web') {
2172: $currentstring = $token->[4];
2173: } elsif ($target eq 'tex') {
1.160 sakharuk 2174: $Apache::londefdef::TD_redirection = 1;
1.159 sakharuk 2175: &tag_check('tr','td',$tagstack,$parstack,$parser,$safeeval);
1.122 albertel 2176: }
2177: return $currentstring;
2178: }
1.159 sakharuk 2179:
2180: sub tag_check {
2181: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
1.160 sakharuk 2182: my @ar=@$parstack;
2183: for (my $i=$#ar-1;$i>=0;$i--) {
2184: if (lc($$tagstack[$i]) eq $good_tag) {
2185: &start_td_tex($parstack,$parser,$safeeval);
2186: last;
2187: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2188: splice @ar, $i+1;
2189: &end_td_tex(\@ar,$parser,$safeeval);
2190: &start_td_tex($parstack,$parser,$safeeval);
2191: last;
1.159 sakharuk 2192: }
1.160 sakharuk 2193: }
1.159 sakharuk 2194: return '';
2195: }
2196:
2197: sub start_td_tex {
2198: my ($parstack,$parser,$safeeval) = @_;
1.206 sakharuk 2199: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2200: if ($alignchar eq '') {
2201: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
1.159 sakharuk 2202: }
1.206 sakharuk 2203: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
1.159 sakharuk 2204: $Apache::londefdef::table[-1]{'counter_columns'}++;
1.206 sakharuk 2205: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2206: if (defined $TeXwidth) {
2207: my $current_length=&recalc($TeXwidth);
2208: $current_length=~/(\d+\.?\d*)/;
2209: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2210: }
1.159 sakharuk 2211: &Apache::lonxml::startredirection();
2212: return '';
2213: }
2214:
2215: sub end_td_tex {
2216: my ($parstack,$parser,$safeeval) = @_;
2217: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2218: my $data=&Apache::lonxml::endredirection();
2219: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2220: if (defined $TeXwidth) {
1.206 sakharuk 2221: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2222: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2223: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
1.159 sakharuk 2224: } else {
1.206 sakharuk 2225: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2226: my $garbage_data=$data;
2227: my $fwidth=0;
2228: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2229: my $current_length=&recalc($1);
2230: $current_length=~/(\d+\.?\d*)/;
2231: if ($fwidth<$1) {$fwidth=$1;}
2232: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2233: }
2234: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2235: my $current_length=$1;
2236: if ($fwidth<$current_length) {$fwidth=$current_length;}
2237: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2238: }
2239: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2240: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2241: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2242: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
1.231 sakharuk 2243: } elsif ($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)*/) {
2244: my $garbage_data=$data;
2245: my $fwidth=0;
2246: while ($garbage_data=~/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)\s*\}/) {
2247: my $current_length=&recalc($1);
2248: $current_length=~/(\d+\.?\d*)/;
2249: if ($fwidth<$1) {$fwidth=$1;}
2250: $garbage_data=~s/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2251: }
2252: while ($garbage_data=~/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2253: my $current_length=&recalc($1);
2254: $current_length=~/(\d+\.?\d*)/;
2255: if ($fwidth<$1) {$fwidth=$1;}
2256: $garbage_data=~s/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2257: }
2258: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2259: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2260: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2261: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2262: $data=~s/\\\\\s*$//;
1.159 sakharuk 2263: } else {
1.166 sakharuk 2264: $data=~s/^\s+(\S.*)/$1/;
1.159 sakharuk 2265: $data=~s/(.*\S)\s+$/$1/;
1.166 sakharuk 2266: $data=~s/(\s)+/$1/;
1.206 sakharuk 2267: my ($current_length,$min_length)=(0,0);
1.166 sakharuk 2268: if ($data=~/\\vskip/) {
2269: my $newdata=$data;
2270: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2271: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2272: foreach my $elementdata (@newdata) {
1.206 sakharuk 2273: my $lengthnewdata=2.5*&LATEX_length($elementdata);
1.166 sakharuk 2274: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
1.206 sakharuk 2275: my @words=split(/ /,$elementdata);
2276: foreach my $word (@words) {
2277: my $lengthword=2.5*&LATEX_length($word);
2278: if ($min_length<$lengthword) {$min_length=$lengthword;}
2279: }
1.166 sakharuk 2280: }
2281: } else {
1.206 sakharuk 2282: $current_length=2.5*&LATEX_length($data);
2283: my @words=split(/ /,$data);
2284: foreach my $word (@words) {
1.228 sakharuk 2285: my $lengthword=2*&LATEX_length($word);
1.206 sakharuk 2286: if ($min_length<$lengthword) {$min_length=$lengthword;}
2287: }
1.166 sakharuk 2288: }
1.206 sakharuk 2289: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2290: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2291: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2292: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
1.159 sakharuk 2293: }
2294: }
2295: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
2296: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2297: }
1.206 sakharuk 2298: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
1.159 sakharuk 2299: return'';
2300: }
2301:
1.122 albertel 2302: sub end_td {
1.126 sakharuk 2303: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 2304: my $currentstring = '';
2305: if ($target eq 'web') {
2306: $currentstring = $token->[2];
2307: } elsif ($target eq 'tex') {
1.160 sakharuk 2308: $Apache::londefdef::TD_redirection =0;
1.159 sakharuk 2309: &end_td_tex($parstack,$parser,$safeeval);
1.122 albertel 2310: }
2311: return $currentstring;
2312: }
2313:
1.166 sakharuk 2314: #-- <th> tag (end tag optional)
1.122 albertel 2315: sub start_th {
2316: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2317: my $currentstring = '';
2318: if ($target eq 'web') {
2319: $currentstring = $token->[4];
2320: } elsif ($target eq 'tex') {
1.230 sakharuk 2321: $Apache::londefdef::TD_redirection = 1;
2322: &tagg_check('tr','th',$tagstack,$parstack,$parser,$safeeval);
1.122 albertel 2323: }
2324: return $currentstring;
1.130 sakharuk 2325: }
1.230 sakharuk 2326:
2327: sub tagg_check {
2328: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
2329: my @ar=@$parstack;
2330: for (my $i=$#ar-1;$i>=0;$i--) {
2331: if (lc($$tagstack[$i]) eq $good_tag) {
2332: &start_th_tex($parstack,$parser,$safeeval);
2333: last;
2334: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2335: splice @ar, $i+1;
2336: &end_th_tex(\@ar,$parser,$safeeval);
2337: &start_th_tex($parstack,$parser,$safeeval);
2338: last;
2339: }
2340: }
2341: return '';
2342: }
2343:
2344: sub start_th_tex {
2345: my ($parstack,$parser,$safeeval) = @_;
2346: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2347: if ($alignchar eq '') {
2348: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
2349: }
2350: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
2351: $Apache::londefdef::table[-1]{'counter_columns'}++;
2352: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2353: if (defined $TeXwidth) {
2354: my $current_length=&recalc($TeXwidth);
2355: $current_length=~/(\d+\.?\d*)/;
2356: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2357: }
2358: &Apache::lonxml::startredirection();
2359: return '';
2360: }
2361:
2362: sub end_th_tex {
2363: my ($parstack,$parser,$safeeval) = @_;
2364: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2365: my $data=&Apache::lonxml::endredirection();
2366: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2367: if (defined $TeXwidth) {
2368: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2369: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2370: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2371: } else {
2372: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2373: my $garbage_data=$data;
2374: my $fwidth=0;
2375: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2376: my $current_length=&recalc($1);
2377: $current_length=~/(\d+\.?\d*)/;
2378: if ($fwidth<$1) {$fwidth=$1;}
2379: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2380: }
2381: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2382: my $current_length=$1;
2383: if ($fwidth<$current_length) {$fwidth=$current_length;}
2384: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2385: }
2386: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2387: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2388: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2389: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2390: } else {
2391: $data=~s/^\s+(\S.*)/$1/;
2392: $data=~s/(.*\S)\s+$/$1/;
2393: $data=~s/(\s)+/$1/;
2394: my ($current_length,$min_length)=(0,0);
2395: if ($data=~/\\vskip/) {
2396: my $newdata=$data;
2397: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2398: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2399: foreach my $elementdata (@newdata) {
2400: my $lengthnewdata=2.5*&LATEX_length($elementdata);
2401: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
2402: my @words=split(/ /,$elementdata);
2403: foreach my $word (@words) {
2404: my $lengthword=2.5*&LATEX_length($word);
2405: if ($min_length<$lengthword) {$min_length=$lengthword;}
2406: }
2407: }
2408: } else {
2409: $current_length=2.5*&LATEX_length($data);
2410: my @words=split(/ /,$data);
2411: foreach my $word (@words) {
2412: my $lengthword=2*&LATEX_length($word);
2413: if ($min_length<$lengthword) {$min_length=$lengthword;}
2414: }
2415: }
2416: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2417: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2418: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2419: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
2420: }
2421: }
2422: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
2423: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2424: }
2425: #make data bold
2426: $data='\textbf{'.$data.'}';
2427: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
2428: return'';
2429: }
2430:
1.122 albertel 2431: sub end_th {
1.130 sakharuk 2432: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 foxr 2433: my $currentstring = &end_p; # Close any open <p> in the row.
1.122 albertel 2434: if ($target eq 'web') {
1.277 foxr 2435: $currentstring .= $token->[2];
1.122 albertel 2436: } elsif ($target eq 'tex') {
1.230 sakharuk 2437: $Apache::londefdef::TD_redirection =0;
2438: &end_th_tex($parstack,$parser,$safeeval);
1.122 albertel 2439: }
2440: return $currentstring;
2441: }
1.230 sakharuk 2442:
1.181 sakharuk 2443: #-- <img> tag (end tag forbidden)
1.249 foxr 2444: #
2445: # Render the <IMG> tag.
2446: # <IMG> has the following attributes (in addition to the
2447: # standard HTML ones:
2448: # TeXwrap - Governs how the tex target will try to wrap text around
2449: # horizontally aligned images.
2450: # TeXwidth - The width of the image when rendered for print (mm).
2451: # TeXheight - The height of the image when rendered for print (mm)
2452: # (Note there seems to also be support for this as a % of page size)
2453: #
1.122 albertel 2454: sub start_img {
2455: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2456: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,
2457: undef,1);
1.189 albertel 2458: if (not $src and ($target eq 'web' or $target eq 'tex')) {
2459: my $inside = &Apache::lonxml::get_all_text("/img",$parser);
2460: return '';
2461: }
1.122 albertel 2462: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$src;
2463: my $currentstring = '';
2464: my $scaling = .3;
1.249 foxr 2465:
2466: # Render unto browsers that which are the browser's...
2467:
1.122 albertel 2468: if ($target eq 'web') {
1.267 albertel 2469: if ($env{'browser.imagesuppress'} ne 'on') {
1.250 albertel 2470: $currentstring.=&Apache::lonenc::encrypt_ref($token,{'src'=>$src});
1.122 albertel 2471: } else {
2472: my $alttag= &Apache::lonxml::get_param
2473: ('alt',$parstack,$safeeval,undef,1);
2474: unless ($alttag) {
2475: $alttag=&Apache::lonmeta::alttag
2476: ($Apache::lonxml::pwd[-1],$src);
1.51 sakharuk 2477: }
1.158 sakharuk 2478: $currentstring.='[IMAGE: '.$alttag.']';
1.1 sakharuk 2479: }
1.249 foxr 2480:
2481: # and render unto TeX that which is LaTeX
2482:
1.122 albertel 2483: } elsif ($target eq 'tex') {
1.248 foxr 2484: #
2485: # The alignment will require some superstructure to be put around
2486: # the \includegraphics stuff. At present we can only partially
2487: # simulate the alignments offered by html.
2488: #
2489: #
2490: my $align = lc(&Apache::lonxml::get_param('align',
2491: $parstack,
2492: $safeeval,
2493: undef,1));
2494: if(!$align) {
2495: $align = "bottom"; # This is html's default so it's ours too.
2496: }
2497: #
2498: &Apache::lonxml::debug("Alignemnt = $align");
2499: # LaTeX's image/text wrapping is really bad since it wants to
2500: # make figures float.
2501: # The user has the optional parameter (applicable only to l/r
2502: # alignment to use the picins/parpic directive to get wrapped text
2503: # this is also imperfect.. that's why we give them a choice...
2504: # so they can't yell at us for our choice.
2505: #
2506: my $latex_rendering = &Apache::lonxml::get_param('TeXwrap',
2507: $parstack,
2508: $safeeval,
2509: undef,0);
2510: &Apache::lonxml::debug("LaTeX rendering = $latex_rendering");
2511: if(!$latex_rendering) {
2512: $latex_rendering = "parbox";
2513: }
1.261 foxr 2514: &Apache::lonxml::debug("LaTeX rendering = $latex_rendering image file: $src");
1.248 foxr 2515:
1.256 albertel 2516: #if original gif/jpg/png file exist do following:
1.266 albertel 2517: my $origsrc=$src;
1.256 albertel 2518: my ($path,$file) = &get_eps_image($src);
1.122 albertel 2519: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.261 foxr 2520: &Apache::lonxml::debug("path = $path file = $file src = $src");
1.192 sakharuk 2521: if (-e $src) {
1.261 foxr 2522: &Apache::lonxml::debug("$src exists");
1.256 albertel 2523: my ($height_param,$width_param)=
1.266 albertel 2524: &image_size($origsrc,0.3,$parstack,$safeeval);
1.262 foxr 2525: my $destpath = $path;
1.263 foxr 2526: $destpath =~ s/ /\_/g; # Spaces in path cause LaTex to vomit.
2527: my $destfile = $file;
2528: $destfile =~ s/ /\_/g;
1.266 albertel 2529: my $size;
2530: if ($width_param) { $size.='width='.$width_param.' mm,'; }
2531: if ($height_param) { $size.='height='.$height_param.' mm]'; }
2532: $size='['.$size;
2533: $size=~s/,$/]/;
1.262 foxr 2534: $currentstring .= '\graphicspath{{'.$destpath.'}}'
1.266 albertel 2535: .'\includegraphics'.$size.'{'.$destfile.'} ';
1.256 albertel 2536:
1.248 foxr 2537: # If there's an alignment specification we need to honor it here.
2538: # For the horizontal alignments, we will also honor the
2539: # value of the latex specfication. The default is parbox,
2540: # and that's used for illegal values too.
2541: #
2542: # Even though we set a default alignment value, the user
2543: # could have given us an illegal value. In that case we
2544: # just use the default alignment of bottom..
2545: if ($align eq "top") {
2546: $currentstring = '\raisebox{-'.$height_param.'mm}{'.$currentstring.'}';
2547: } elsif (($align eq "center") || ($align eq "middle")) { # Being kind
2548: my $offset = $height_param/2;
2549: $currentstring = '\raisebox{-'.$offset.'mm}{'.$currentstring.'}';
2550: } elsif ($align eq "left") {
2551: if ($latex_rendering eq "parpic") {
2552: $currentstring = '\parpic[l]{'.$currentstring.'}';
2553: } else { # parbox rendering
1.255 albertel 2554: $currentstring = "\\strut\\newline\n".
2555: '\parbox{'.$width_param.'mm}{'.$currentstring.'}';
1.248 foxr 2556: }
2557: } elsif ($align eq "right") {
2558: if ($latex_rendering eq "parpic") {
2559: $currentstring = '\parpic[r]{'.$currentstring.'}';
2560: } else { # parbox rendering.
2561: $currentstring = '\parbox{'.$width_param.'mm}{\begin{flushright}'
2562: .$currentstring.'\end{flushright}} \newline'."\n";
2563: }
2564: } else { # Bottom is also default.
2565: # $currentstring = '\raisebox{'.$height_param.'mm}{'.$currentstring.'}';
2566: }
1.122 albertel 2567: } else {
1.261 foxr 2568: &Apache::lonxml::debug("$src does not exist");
1.122 albertel 2569: #original image file doesn't exist so check the alt attribute
2570: my $alt =
2571: &Apache::lonxml::get_param('alt',$parstack,$safeeval,undef,1);
2572: unless ($alt) {
2573: $alt=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
2574: }
2575:
1.256 albertel 2576: if ($alt) { $currentstring .= ' '.$alt.' '; }
1.59 sakharuk 2577: }
1.249 foxr 2578:
2579: # And here's where the semi-quote breaks down: allow the user
2580: # to edit the beast as well by rendering the problem for edit:
1.186 albertel 2581: } elsif ($target eq 'edit') {
2582: $currentstring .=&Apache::edit::tag_start($target,$token);
2583: $currentstring .=&Apache::edit::text_arg('Image Url:','src',$token,70).
2584: &Apache::edit::browse('src',undef,'alt').' '.
2585: &Apache::edit::search('src',undef,'alt').'<br />';
2586: $currentstring .=&Apache::edit::text_arg('Description:','alt',$token,70).'<br />';
2587: $currentstring .=&Apache::edit::text_arg('width (pixel):','width',$token,5);
2588: $currentstring .=&Apache::edit::text_arg('height (pixel):','height',$token,5).'<br />';
2589: $currentstring .=&Apache::edit::text_arg('TeXwidth (mm):','TeXwidth',$token,5);
2590: $currentstring .=&Apache::edit::text_arg('TeXheight (mm):','TeXheight',$token,5);
1.234 albertel 2591: $currentstring .=&Apache::edit::select_arg('Alignment:','align',
2592: ['','bottom','middle','top','left','right'],$token,5);
1.249 foxr 2593: $currentstring .=&Apache::edit::select_arg('TeXwrap:', 'TeXwrap',
2594: ['', 'parbox', 'parpic'], $token, 2);
1.186 albertel 2595: $currentstring .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1.249 foxr 2596: my $src= &Apache::lonxml::get_param('src',$parstack,$safeeval);
2597: my $alt= &Apache::lonxml::get_param('alt',$parstack,$safeeval);
2598: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
2599: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
2600:
2601:
1.186 albertel 2602: $currentstring .= '<img src="'.$src.'" alt="'.$alt.'" ';
2603: if ($width) { $currentstring.=' width="'.$width.'" '; }
2604: if ($height) { $currentstring.=' height="'.$height.'" '; }
2605: $currentstring .= ' />';
2606: } elsif ($target eq 'modified') {
1.210 albertel 2607: my ($osrc,$owidth,$oheight)=
2608: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2609: my $ctag=&Apache::edit::get_new_args($token,$parstack,
1.234 albertel 2610: $safeeval,'src','alt','align',
1.249 foxr 2611: 'TeXwidth','TeXheight', 'TeXwrap',
1.210 albertel 2612: 'width','height');
2613: my ($nsrc,$nwidth,$nheight)=
2614: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2615: my $loc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$nsrc);
2616: &image_replication($loc);
2617: my ($iwidth,$iheight);
2618: if (-e $loc) {
2619: my $image = Image::Magick->new;
2620: $image->Read($loc);
2621: ($iwidth, $iheight) = ($image->Get('width'),
2622: $image->Get('height'));
2623: }
2624: if ($osrc ne $nsrc || (!$nwidth && !$nheight)) {
2625: # changed image or no size specified,
2626: # if they didn't explicitly change the
2627: # width or height use the ones from the image
2628: if ($iwidth && $iheight) {
2629: if ($owidth == $nwidth || (!$nwidth && !$nheight)) {
2630: $token->[2]{'width'} = $iwidth;$ctag=1;
2631: }
2632: if ($oheight == $nheight || (!$nwidth && !$nheight)) {
2633: $token->[2]{'height'}=$iheight;$ctag=1;
1.186 albertel 2634: }
2635: }
2636: }
1.210 albertel 2637: my ($cwidth,$cheight)=($token->[2]{'width'},$token->[2]{'height'});
2638: # if we don't have a width or height
2639: if ($iwidth && $cwidth && !$cheight) {
2640: $token->[2]{'height'}=int(($cwidth/$iwidth)*$iheight);$ctag=1;
2641: }
2642: if ($iheight && $cheight && !$cwidth) {
2643: $token->[2]{'width'}=int(($cheight/$iheight)*$iwidth);$ctag=1;
2644: }
2645: if ($ctag) {$currentstring=&Apache::edit::rebuild_tag($token);}
1.122 albertel 2646: }
1.261 foxr 2647:
1.122 albertel 2648: return $currentstring;
2649: }
2650:
2651: sub end_img {
2652: my ($target,$token) = @_;
2653: my $currentstring = '';
2654: if ($target eq 'web') {
2655: $currentstring = $token->[2];
2656: } elsif ($target eq 'tex') {
2657: $currentstring = '';
2658: }
2659: return $currentstring;
2660: }
2661:
1.181 sakharuk 2662: #-- <applet> tag (end tag required)
1.122 albertel 2663: sub start_applet {
2664: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2665:
2666: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,undef,1);
2667: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$code;
2668:
2669: my $archive=&Apache::lonxml::get_param('archive',$parstack,$safeeval,
2670: undef,1);
2671: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$archive;
2672:
2673: my $currentstring = '';
2674: if ($target eq 'web') {
1.267 albertel 2675: if ($env{'browser.appletsuppress'} ne 'on') {
1.250 albertel 2676: $currentstring = &Apache::lonenc::encrypt_ref($token,
2677: {'code'=>$code,
2678: 'archive'=>$archive}
2679: );
1.122 albertel 2680: } else {
2681: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
2682: $safeeval,undef,1);
2683: unless ($alttag) {
2684: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2685: $code);
1.44 sakharuk 2686: }
1.122 albertel 2687: $currentstring='[APPLET: '.$alttag.']';
1.1 sakharuk 2688: }
1.122 albertel 2689: } elsif ($target eq 'tex') {
1.177 albertel 2690: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
2691: $safeeval,undef,1);
2692: unless ($alttag) {
2693: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,
2694: undef,1);
2695: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2696: $code);
1.175 sakharuk 2697: }
1.177 albertel 2698: $currentstring.='\begin{center} \fbox{Java Applet: '.$alttag.
2699: '.}\end{center}';
1.122 albertel 2700: }
2701: return $currentstring;
2702: }
2703:
2704: sub end_applet {
2705: my ($target,$token) = @_;
2706: my $currentstring = '';
2707: if ($target eq 'web') {
2708: $currentstring = $token->[2];
2709: } elsif ($target eq 'tex') {
2710: }
2711: return $currentstring;
2712: }
2713:
1.181 sakharuk 2714: #-- <embed> tag (end tag optional/required)
1.122 albertel 2715: sub start_embed {
2716: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2717: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2718: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$src;
2719: my $currentstring = '';
2720: if ($target eq 'web') {
1.267 albertel 2721: if ($env{'browser.embedsuppress'} ne 'on') {
1.250 albertel 2722: $currentstring=&Apache::lonenc::encrypt_ref($token,{'src'=>$src});
1.122 albertel 2723: } else {
2724: my $alttag=&Apache::lonxml::get_param
2725: ('alt',$parstack,$safeeval,undef,1);
2726: unless ($alttag) {
2727: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
1.42 albertel 2728: }
1.122 albertel 2729: $currentstring='[EMBED: '.$alttag.']';
1.10 www 2730: }
1.122 albertel 2731: } elsif ($target eq 'tex') {
2732: }
2733: return $currentstring;
2734: }
2735:
2736: sub end_embed {
2737: my ($target,$token) = @_;
2738: my $currentstring = '';
2739: if ($target eq 'web') {
2740: $currentstring = $token->[2];
1.175 sakharuk 2741: } elsif ($target eq 'tex') {
1.122 albertel 2742: }
2743: return $currentstring;
2744: }
2745:
1.181 sakharuk 2746: #-- <param> tag (end tag forbidden)
1.122 albertel 2747: sub start_param {
2748: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2749: if (&Apache::lonxml::get_param
2750: ('name',$parstack,$safeeval,undef,1)=~/^cabbase$/i) {
2751: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
2752: &Apache::lonxml::get_param('value',$parstack,$safeeval,undef,1);
2753: }
2754: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
2755: &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2756: my $currentstring = '';
2757: if ($target eq 'web') {
1.250 albertel 2758: my %toconvert;
2759: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2760: if ($src) { $toconvert{'src'}= $src; }
2761: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval,
2762: undef,1);
1.251 albertel 2763: if ($name=~/^cabbase$/i) {
2764: $toconvert{'value'}=&Apache::lonxml::get_param('value',$parstack,
2765: $safeeval,undef,1);
2766: }
1.250 albertel 2767: $currentstring = &Apache::lonenc::encrypt_ref($token,\%toconvert);
1.122 albertel 2768: } elsif ($target eq 'tex') {
2769: }
2770: return $currentstring;
2771: }
2772:
2773: sub end_param {
2774: my ($target,$token) = @_;
2775: my $currentstring = '';
2776: if ($target eq 'web') {
2777: $currentstring = $token->[2];
2778: } elsif ($target eq 'tex') {
2779: }
2780: return $currentstring;
2781: }
2782:
2783: #-- <allow> tag
2784: sub start_allow {
2785: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2786: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2787: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.138 www 2788: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
2789: &Apache::lonnet::clutter($src);
1.241 albertel 2790: if ($target eq 'tex') { &image_replication($src); }
1.122 albertel 2791: my $result;
2792: if ($target eq 'edit') {
2793: $result .=&Apache::edit::tag_start($target,$token);
2794: $result .=&Apache::edit::text_arg('File Spec:','src',$token,70);
2795: $result .=&Apache::edit::end_row();#.&Apache::edit::start_spanning_row();
2796: } elsif ($target eq 'modified') {
2797: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2798: $safeeval,'src');
2799: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2800: }
2801: return $result;
2802: }
2803:
2804: sub end_allow {
2805: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2806: if ( $target eq 'edit') { return (&Apache::edit::end_table()); }
2807: return '';
2808: }
1.119 www 2809:
1.181 sakharuk 2810: #-- Frames (end tag required)
2811: #-- <frameset>
1.122 albertel 2812: sub start_frameset {
2813: my ($target,$token) = @_;
1.277 foxr 2814: my $currentstring = ''; # Close any pending para.
1.122 albertel 2815: if ($target eq 'web') {
1.180 albertel 2816: if (!$Apache::lonxml::registered &&
1.267 albertel 2817: $env{'request.state'} eq 'published') {
1.122 albertel 2818: $currentstring.='<head>'.
2819: &Apache::lonmenu::registerurl(undef,$target).'</head>';
1.10 www 2820: }
1.133 www 2821: my $onLoad='';
2822: foreach my $key (keys(%{$token->[2]})) {
2823: if ($key =~ /^onload$/i) {
2824: $onLoad.=$token->[2]->{$key}.';';
2825: delete($token->[2]->{$key});
2826: }
2827: }
2828: $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad;
2829: my $onUnload='';
2830: foreach my $key (keys(%{$token->[2]})) {
2831: if ($key =~ /^onunload$/i) {
2832: $onUnload.=$token->[2]->{$key}.';';
2833: delete($token->[2]->{$key});
2834: }
2835: }
2836: $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().
2837: ';'.$onUnload;
2838:
2839: $currentstring .= '<'.$token->[1];
2840: foreach (keys %{$token->[2]}) {
2841: $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
2842: }
2843: $currentstring.='>';
1.122 albertel 2844: }
2845: return $currentstring;
2846: }
2847:
2848: sub end_frameset {
2849: my ($target,$token) = @_;
2850: my $currentstring = '';
2851: if ($target eq 'web') {
2852: $currentstring = $token->[2];
2853: }
2854: return $currentstring;
2855: }
1.162 sakharuk 2856:
1.181 sakharuk 2857: #-- <xmp> (end tag required)
1.162 sakharuk 2858: sub start_xmp {
2859: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2860: my $currentstring = '';
2861: if ($target eq 'web') {
2862: $currentstring .= $token->[4];
2863: } elsif ($target eq 'tex') {
2864: $currentstring .= '\begin{verbatim}';
2865: }
2866: return $currentstring;
2867: }
2868:
2869: sub end_xmp {
2870: my ($target,$token) = @_;
2871: my $currentstring = '';
2872: if ($target eq 'web') {
2873: $currentstring .= $token->[2];
2874: } elsif ($target eq 'tex') {
2875: $currentstring .= '\end{verbatim}';
2876: }
2877: return $currentstring;
2878: }
2879:
1.181 sakharuk 2880: #-- <pre> (end tag required)
1.122 albertel 2881: sub start_pre {
1.126 sakharuk 2882: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 foxr 2883: my $currentstring = &end_p; # close off pending <p>
1.122 albertel 2884: if ($target eq 'web') {
2885: $currentstring .= $token->[4];
2886: } elsif ($target eq 'tex') {
1.136 sakharuk 2887: $currentstring .= '\begin{verbatim}';
1.122 albertel 2888: }
2889: return $currentstring;
2890: }
2891:
2892: sub end_pre {
2893: my ($target,$token) = @_;
2894: my $currentstring = '';
2895: if ($target eq 'web') {
2896: $currentstring .= $token->[2];
2897: } elsif ($target eq 'tex') {
1.136 sakharuk 2898: $currentstring .= '\end{verbatim}';
1.122 albertel 2899: }
2900: return $currentstring;
2901: }
2902:
2903: #-- <insert>
2904: sub start_insert {
2905: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2906: my $currentstring = '';
2907: if ($target eq 'web') {
2908: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
2909: $currentstring .= '<b>'.$display.'</b>';;
2910: }
2911: return $currentstring;
2912: }
2913:
2914: sub end_insert {
2915: my ($target,$token) = @_;
2916: my $currentstring = '';
2917: if ($target eq 'web') {
2918: $currentstring .= '';
2919: }
2920: return $currentstring;
2921: }
2922:
2923: #-- <externallink>
2924: sub start_externallink {
2925: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2926: my $currentstring = '';
2927: if ($target eq 'web') {
2928: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
2929: $currentstring .= '<b>'.$display.'</b>';;
2930: }
2931: return $currentstring;
2932: }
2933:
2934: sub end_externallink {
2935: my ($target,$token) = @_;
2936: my $currentstring = '';
2937: if ($target eq 'web') {
2938: $currentstring .= '';
2939: }
2940: return $currentstring;
2941: }
2942:
2943: #-- <blankspace heigth="">
2944: sub start_blankspace {
2945: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 foxr 2946: my $currentstring = &end_p; # closes off any unclosed <p>
1.122 albertel 2947: if ($target eq 'tex') {
2948: my $howmuch = &Apache::lonxml::get_param('heigth',$parstack,$safeeval,undef,1);
2949: $currentstring .= '\vskip '.$howmuch.' ';
2950: }
2951: return $currentstring;
2952: }
2953:
2954: sub end_blankspace {
2955: my ($target,$token) = @_;
2956: my $currentstring = '';
2957: if ($target eq 'tex') {
2958: $currentstring .= '';
2959: }
2960: return $currentstring;
2961: }
2962:
1.181 sakharuk 2963: #-- <abbr> tag (end tag required)
1.122 albertel 2964: sub start_abbr {
2965: my ($target,$token) = @_;
2966: my $currentstring = '';
2967: if ($target eq 'web') {
2968: $currentstring = $token->[4];
2969: }
2970: return $currentstring;
2971: }
2972:
2973: sub end_abbr {
2974: my ($target,$token) = @_;
2975: my $currentstring = '';
2976: if ($target eq 'web') {
2977: $currentstring = $token->[2];
2978: }
2979: return $currentstring;
2980: }
2981:
1.181 sakharuk 2982: #-- <acronym> tag (end tag required)
1.122 albertel 2983: sub start_acronym {
2984: my ($target,$token) = @_;
2985: my $currentstring = '';
2986: if ($target eq 'web') {
2987: $currentstring = $token->[4];
2988: }
2989: return $currentstring;
2990: }
2991:
2992: sub end_acronym {
2993: my ($target,$token) = @_;
2994: my $currentstring = '';
2995: if ($target eq 'web') {
2996: $currentstring = $token->[2];
2997: }
2998: return $currentstring;
2999: }
3000:
1.181 sakharuk 3001: #-- <area> tag (end tag forbidden)
1.122 albertel 3002: sub start_area {
3003: my ($target,$token) = @_;
3004: my $currentstring = '';
3005: if ($target eq 'web') {
3006: $currentstring = $token->[4];
3007: }
3008: return $currentstring;
3009: }
3010:
3011: sub end_area {
3012: my ($target,$token) = @_;
3013: my $currentstring = '';
3014: if ($target eq 'web') {
3015: $currentstring = $token->[2];
3016: }
3017: return $currentstring;
3018: }
3019:
1.181 sakharuk 3020: #-- <base> tag (end tag forbidden)
1.122 albertel 3021: sub start_base {
3022: my ($target,$token) = @_;
3023: my $currentstring = '';
3024: if ($target eq 'web') {
3025: $currentstring = $token->[4];
1.161 sakharuk 3026: }
1.122 albertel 3027: return $currentstring;
3028: }
3029:
3030: sub end_base {
3031: my ($target,$token) = @_;
3032: my $currentstring = '';
3033: if ($target eq 'web') {
3034: $currentstring = $token->[2];
3035: }
3036: return $currentstring;
3037: }
3038:
1.181 sakharuk 3039: #-- <bdo> tag (end tag required)
1.122 albertel 3040: sub start_bdo {
3041: my ($target,$token) = @_;
3042: my $currentstring = '';
3043: if ($target eq 'web') {
3044: $currentstring = $token->[4];
3045: }
3046: return $currentstring;
3047: }
3048:
3049: sub end_bdo {
3050: my ($target,$token) = @_;
3051: my $currentstring = '';
3052: if ($target eq 'web') {
3053: $currentstring = $token->[2];
3054: }
3055: return $currentstring;
3056: }
3057:
1.181 sakharuk 3058: #-- <bgsound> tag (end tag optional)
1.122 albertel 3059: sub start_bgsound {
3060: my ($target,$token) = @_;
3061: my $currentstring = '';
3062: if ($target eq 'web') {
3063: $currentstring = $token->[4];
3064: }
3065: return $currentstring;
3066: }
3067:
3068: sub end_bgsound {
3069: my ($target,$token) = @_;
3070: my $currentstring = '';
3071: if ($target eq 'web') {
3072: $currentstring = $token->[2];
3073: }
3074: return $currentstring;
3075: }
3076:
1.181 sakharuk 3077: #-- <blink> tag (end tag required)
1.122 albertel 3078: sub start_blink {
3079: my ($target,$token) = @_;
3080: my $currentstring = '';
3081: if ($target eq 'web') {
3082: $currentstring = $token->[4];
3083: }
3084: return $currentstring;
3085: }
3086:
3087: sub end_blink {
3088: my ($target,$token) = @_;
3089: my $currentstring = '';
3090: if ($target eq 'web') {
3091: $currentstring = $token->[2];
3092: }
3093: return $currentstring;
3094: }
3095:
1.181 sakharuk 3096: #-- <blockquote> tag (end tag required)
1.122 albertel 3097: sub start_blockquote {
3098: my ($target,$token) = @_;
1.277 foxr 3099: my $currentstring = &end_p; # Close any unclosed <p>
1.122 albertel 3100: if ($target eq 'web') {
1.277 foxr 3101: $currentstring .= $token->[4];
1.122 albertel 3102: }
3103: return $currentstring;
3104: }
3105:
3106: sub end_blockquote {
3107: my ($target,$token) = @_;
3108: my $currentstring = '';
3109: if ($target eq 'web') {
3110: $currentstring = $token->[2];
3111: }
3112: return $currentstring;
3113: }
3114:
1.181 sakharuk 3115: #-- <button> tag (end tag required)
1.122 albertel 3116: sub start_button {
3117: my ($target,$token) = @_;
3118: my $currentstring = '';
3119: if ($target eq 'web') {
3120: $currentstring = $token->[4];
3121: }
3122: return $currentstring;
3123: }
3124:
3125: sub end_button {
3126: my ($target,$token) = @_;
3127: my $currentstring = '';
3128: if ($target eq 'web') {
3129: $currentstring = $token->[2];
3130: }
3131: return $currentstring;
3132: }
3133:
1.181 sakharuk 3134: #-- <caption> tag (end tag required)
1.122 albertel 3135: sub start_caption {
3136: my ($target,$token) = @_;
3137: my $currentstring = '';
3138: if ($target eq 'web') {
3139: $currentstring = $token->[4];
3140: }
3141: return $currentstring;
3142: }
3143:
3144: sub end_caption {
3145: my ($target,$token) = @_;
3146: my $currentstring = '';
3147: if ($target eq 'web') {
3148: $currentstring = $token->[2];
3149: }
3150: return $currentstring;
3151: }
3152:
1.181 sakharuk 3153: #-- <col> tag (end tag forbdden)
1.122 albertel 3154: sub start_col {
3155: my ($target,$token) = @_;
3156: my $currentstring = '';
3157: if ($target eq 'web') {
3158: $currentstring = $token->[4];
3159: }
3160: return $currentstring;
3161: }
3162:
3163: sub end_col {
3164: my ($target,$token) = @_;
3165: my $currentstring = '';
3166: if ($target eq 'web') {
3167: $currentstring = $token->[2];
3168: }
3169: return $currentstring;
3170: }
3171:
1.181 sakharuk 3172: #-- <colgroup> tag (end tag optional)
1.122 albertel 3173: sub start_colgroup {
3174: my ($target,$token) = @_;
3175: my $currentstring = '';
3176: if ($target eq 'web') {
3177: $currentstring = $token->[4];
3178: }
3179: return $currentstring;
3180: }
3181:
3182: sub end_colgroup {
3183: my ($target,$token) = @_;
3184: my $currentstring = '';
3185: if ($target eq 'web') {
3186: $currentstring = $token->[2];
3187: }
3188: return $currentstring;
3189: }
3190:
1.181 sakharuk 3191: #-- <del> tag (end tag required)
1.122 albertel 3192: sub start_del {
3193: my ($target,$token) = @_;
3194: my $currentstring = '';
3195: if ($target eq 'web') {
3196: $currentstring = $token->[4];
3197: }
3198: return $currentstring;
3199: }
3200:
3201: sub end_del {
3202: my ($target,$token) = @_;
3203: my $currentstring = '';
3204: if ($target eq 'web') {
3205: $currentstring = $token->[2];
3206: }
3207: return $currentstring;
3208: }
3209:
1.181 sakharuk 3210: #-- <fieldset> tag (end tag required)
1.122 albertel 3211: sub start_fieldset {
3212: my ($target,$token) = @_;
3213: my $currentstring = '';
3214: if ($target eq 'web') {
3215: $currentstring = $token->[4];
3216: }
3217: return $currentstring;
3218: }
3219:
3220: sub end_fieldset {
3221: my ($target,$token) = @_;
3222: my $currentstring = '';
3223: if ($target eq 'web') {
3224: $currentstring = $token->[2];
3225: }
3226: return $currentstring;
3227: }
3228:
1.181 sakharuk 3229: #-- <frame> tag (end tag forbidden)
1.122 albertel 3230: sub start_frame {
3231: my ($target,$token) = @_;
3232: my $currentstring = '';
3233: if ($target eq 'web') {
3234: $currentstring = $token->[4];
3235: }
3236: return $currentstring;
3237: }
3238:
3239: sub end_frame {
3240: my ($target,$token) = @_;
3241: my $currentstring = '';
3242: if ($target eq 'web') {
3243: $currentstring = $token->[2];
3244: }
3245: return $currentstring;
3246: }
3247:
1.181 sakharuk 3248: #-- <iframe> tag (end tag required)
1.122 albertel 3249: sub start_iframe {
3250: my ($target,$token) = @_;
3251: my $currentstring = '';
3252: if ($target eq 'web') {
3253: $currentstring = $token->[4];
3254: }
3255: return $currentstring;
3256: }
3257:
3258: sub end_iframe {
3259: my ($target,$token) = @_;
3260: my $currentstring = '';
3261: if ($target eq 'web') {
3262: $currentstring = $token->[2];
3263: }
3264: return $currentstring;
3265: }
3266:
1.181 sakharuk 3267: #-- <ins> tag (end tag required)
1.122 albertel 3268: sub start_ins {
3269: my ($target,$token) = @_;
3270: my $currentstring = '';
3271: if ($target eq 'web') {
3272: $currentstring = $token->[4];
3273: }
3274: return $currentstring;
3275: }
3276:
3277: sub end_ins {
3278: my ($target,$token) = @_;
3279: my $currentstring = '';
3280: if ($target eq 'web') {
3281: $currentstring = $token->[2];
3282: }
3283: return $currentstring;
3284: }
3285:
1.181 sakharuk 3286: #-- <isindex> tag (end tag forbidden)
1.122 albertel 3287: sub start_isindex {
3288: my ($target,$token) = @_;
3289: my $currentstring = '';
3290: if ($target eq 'web') {
3291: $currentstring = $token->[4];
3292: }
3293: return $currentstring;
3294: }
3295:
3296: sub end_isindex {
3297: my ($target,$token) = @_;
3298: my $currentstring = '';
3299: if ($target eq 'web') {
3300: $currentstring = $token->[2];
3301: }
3302: return $currentstring;
3303: }
3304:
1.181 sakharuk 3305: #-- <keygen> tag (end tag forbidden)
1.122 albertel 3306: sub start_keygen {
3307: my ($target,$token) = @_;
3308: my $currentstring = '';
3309: if ($target eq 'web') {
3310: $currentstring = $token->[4];
3311: }
3312: return $currentstring;
3313: }
3314:
3315: sub end_keygen {
3316: my ($target,$token) = @_;
3317: my $currentstring = '';
3318: if ($target eq 'web') {
3319: $currentstring = $token->[2];
3320: }
3321: return $currentstring;
3322: }
3323:
3324: #-- <label> tag
3325: sub start_label {
3326: my ($target,$token) = @_;
3327: my $currentstring = '';
3328: if ($target eq 'web') {
3329: $currentstring = $token->[4];
3330: }
3331: return $currentstring;
3332: }
3333:
3334: sub end_label {
3335: my ($target,$token) = @_;
3336: my $currentstring = '';
3337: if ($target eq 'web') {
3338: $currentstring = $token->[2];
3339: }
3340: return $currentstring;
3341: }
3342:
1.181 sakharuk 3343: #-- <layer> tag (end tag required)
1.122 albertel 3344: sub start_layer {
3345: my ($target,$token) = @_;
3346: my $currentstring = '';
3347: if ($target eq 'web') {
3348: $currentstring = $token->[4];
3349: }
3350: return $currentstring;
3351: }
3352:
3353: sub end_layer {
3354: my ($target,$token) = @_;
3355: my $currentstring = '';
3356: if ($target eq 'web') {
3357: $currentstring = $token->[2];
3358: }
3359: return $currentstring;
3360: }
3361:
1.181 sakharuk 3362: #-- <legend> tag (end tag required)
1.122 albertel 3363: sub start_legend {
3364: my ($target,$token) = @_;
3365: my $currentstring = '';
3366: if ($target eq 'web') {
3367: $currentstring = $token->[4];
3368: }
3369: return $currentstring;
3370: }
3371:
3372: sub end_legend {
3373: my ($target,$token) = @_;
3374: my $currentstring = '';
3375: if ($target eq 'web') {
3376: $currentstring = $token->[2];
3377: }
3378: return $currentstring;
3379: }
3380:
1.181 sakharuk 3381: #-- <link> tag (end tag forbidden)
1.122 albertel 3382: sub start_link {
3383: my ($target,$token) = @_;
3384: my $currentstring = '';
3385: if ($target eq 'web') {
3386: $currentstring = $token->[4];
3387: }
3388: return $currentstring;
3389: }
3390:
3391: sub end_link {
3392: my ($target,$token) = @_;
3393: my $currentstring = '';
3394: if ($target eq 'web') {
3395: $currentstring = $token->[2];
3396: }
3397: return $currentstring;
3398: }
3399:
1.181 sakharuk 3400: #-- <marquee> tag (end tag optional)
1.122 albertel 3401: sub start_marquee {
3402: my ($target,$token) = @_;
3403: my $currentstring = '';
3404: if ($target eq 'web') {
3405: $currentstring = $token->[4];
3406: }
3407: return $currentstring;
3408: }
3409:
3410: sub end_marquee {
3411: my ($target,$token) = @_;
3412: my $currentstring = '';
3413: if ($target eq 'web') {
3414: $currentstring = $token->[2];
3415: }
3416: return $currentstring;
3417: }
3418:
1.179 sakharuk 3419: #-- <multicol> tag (end tag required)
3420: sub start_multicol {
1.122 albertel 3421: my ($target,$token) = @_;
1.277 foxr 3422: my $currentstring = &end_p; # Close any pending <p>
1.122 albertel 3423: if ($target eq 'web') {
1.277 foxr 3424: $currentstring .= $token->[4];
1.122 albertel 3425: }
3426: return $currentstring;
3427: }
3428:
1.179 sakharuk 3429: sub end_multicol {
1.122 albertel 3430: my ($target,$token) = @_;
3431: my $currentstring = '';
3432: if ($target eq 'web') {
3433: $currentstring = $token->[2];
3434: }
3435: return $currentstring;
3436: }
3437:
1.179 sakharuk 3438: #-- <nobr> tag (end tag required)
1.122 albertel 3439: sub start_nobr {
3440: my ($target,$token) = @_;
3441: my $currentstring = '';
3442: if ($target eq 'web') {
3443: $currentstring = $token->[4];
1.179 sakharuk 3444: } elsif ($target eq 'tex') {
3445: $currentstring='\mbox{';
3446: }
1.122 albertel 3447: return $currentstring;
3448: }
3449:
3450: sub end_nobr {
3451: my ($target,$token) = @_;
3452: my $currentstring = '';
3453: if ($target eq 'web') {
3454: $currentstring = $token->[2];
1.179 sakharuk 3455: } elsif ($target eq 'tex') {
3456: $currentstring='}';
3457: }
1.122 albertel 3458: return $currentstring;
3459: }
3460:
1.179 sakharuk 3461: #-- <noembed> tag (end tag required)
1.122 albertel 3462: sub start_noembed {
3463: my ($target,$token) = @_;
3464: my $currentstring = '';
3465: if ($target eq 'web') {
3466: $currentstring = $token->[4];
3467: }
3468: return $currentstring;
3469: }
3470:
3471: sub end_noembed {
3472: my ($target,$token) = @_;
3473: my $currentstring = '';
3474: if ($target eq 'web') {
3475: $currentstring = $token->[2];
3476: }
3477: return $currentstring;
3478: }
3479:
1.179 sakharuk 3480: #-- <noframes> tag (end tag required)
1.122 albertel 3481: sub start_noframes {
3482: my ($target,$token) = @_;
3483: my $currentstring = '';
3484: if ($target eq 'web') {
3485: $currentstring = $token->[4];
3486: }
3487: return $currentstring;
3488: }
3489:
3490: sub end_noframes {
3491: my ($target,$token) = @_;
3492: my $currentstring = '';
3493: if ($target eq 'web') {
3494: $currentstring = $token->[2];
3495: }
3496: return $currentstring;
3497: }
3498:
1.179 sakharuk 3499: #-- <nolayer> tag (end tag required)
1.122 albertel 3500: sub start_nolayer {
3501: my ($target,$token) = @_;
3502: my $currentstring = '';
3503: if ($target eq 'web') {
3504: $currentstring = $token->[4];
3505: }
3506: return $currentstring;
3507: }
3508:
3509: sub end_nolayer {
3510: my ($target,$token) = @_;
3511: my $currentstring = '';
3512: if ($target eq 'web') {
3513: $currentstring = $token->[2];
3514: }
3515: return $currentstring;
3516: }
3517:
1.179 sakharuk 3518: #-- <noscript> tag (end tag required)
1.122 albertel 3519: sub start_noscript {
3520: my ($target,$token) = @_;
3521: my $currentstring = '';
3522: if ($target eq 'web') {
3523: $currentstring = $token->[4];
3524: }
3525: return $currentstring;
3526: }
3527:
3528: sub end_noscript {
3529: my ($target,$token) = @_;
3530: my $currentstring = '';
3531: if ($target eq 'web') {
3532: $currentstring = $token->[2];
3533: }
3534: return $currentstring;
3535: }
3536:
1.179 sakharuk 3537: #-- <object> tag (end tag required)
1.122 albertel 3538: sub start_object {
3539: my ($target,$token) = @_;
3540: my $currentstring = '';
3541: if ($target eq 'web') {
3542: $currentstring = $token->[4];
3543: }
3544: return $currentstring;
3545: }
3546:
3547: sub end_object {
3548: my ($target,$token) = @_;
3549: my $currentstring = '';
3550: if ($target eq 'web') {
3551: $currentstring = $token->[2];
3552: }
3553: return $currentstring;
3554: }
3555:
1.179 sakharuk 3556: #-- <optgroup> tag (end tag required)
1.122 albertel 3557: sub start_optgroup {
3558: my ($target,$token) = @_;
3559: my $currentstring = '';
3560: if ($target eq 'web') {
3561: $currentstring = $token->[4];
3562: }
3563: return $currentstring;
3564: }
3565:
3566: sub end_optgroup {
3567: my ($target,$token) = @_;
3568: my $currentstring = '';
3569: if ($target eq 'web') {
3570: $currentstring = $token->[2];
3571: }
3572: return $currentstring;
3573: }
3574:
1.179 sakharuk 3575: #-- <samp> tag (end tag required)
1.122 albertel 3576: sub start_samp {
3577: my ($target,$token) = @_;
3578: my $currentstring = '';
3579: if ($target eq 'web') {
3580: $currentstring = $token->[4];
1.179 sakharuk 3581: } elsif ($target eq 'tex') {
3582: $currentstring='\texttt{';
3583: }
1.122 albertel 3584: return $currentstring;
3585: }
3586:
3587: sub end_samp {
3588: my ($target,$token) = @_;
3589: my $currentstring = '';
3590: if ($target eq 'web') {
3591: $currentstring = $token->[2];
1.179 sakharuk 3592: } elsif ($target eq 'tex') {
3593: $currentstring='}';
3594: }
1.122 albertel 3595: return $currentstring;
3596: }
3597:
3598: #-- <server> tag
3599: sub start_server {
3600: my ($target,$token) = @_;
3601: my $currentstring = '';
3602: if ($target eq 'web') {
3603: $currentstring = $token->[4];
3604: }
3605: return $currentstring;
3606: }
3607:
3608: sub end_server {
3609: my ($target,$token) = @_;
3610: my $currentstring = '';
3611: if ($target eq 'web') {
3612: $currentstring = $token->[2];
3613: }
3614: return $currentstring;
3615: }
3616:
1.179 sakharuk 3617: #-- <spacer> tag (end tag forbidden)
1.122 albertel 3618: sub start_spacer {
3619: my ($target,$token) = @_;
1.277 foxr 3620: my $currentstring = &end_p; # Close off any open <p> tag.
1.122 albertel 3621: if ($target eq 'web') {
1.277 foxr 3622: $currentstring .= $token->[4];
1.122 albertel 3623: }
3624: return $currentstring;
3625: }
3626:
3627: sub end_spacer {
3628: my ($target,$token) = @_;
3629: my $currentstring = '';
3630: if ($target eq 'web') {
3631: $currentstring = $token->[2];
3632: }
3633: return $currentstring;
3634: }
3635:
1.179 sakharuk 3636: #-- <span> tag (end tag required)
1.122 albertel 3637: sub start_span {
3638: my ($target,$token) = @_;
3639: my $currentstring = '';
3640: if ($target eq 'web') {
3641: $currentstring = $token->[4];
3642: }
3643: return $currentstring;
3644: }
3645:
3646: sub end_span {
3647: my ($target,$token) = @_;
3648: my $currentstring = '';
3649: if ($target eq 'web') {
3650: $currentstring = $token->[2];
3651: }
3652: return $currentstring;
3653: }
3654:
1.179 sakharuk 3655: #-- <tbody> tag (end tag optional)
1.122 albertel 3656: sub start_tbody {
3657: my ($target,$token) = @_;
3658: my $currentstring = '';
3659: if ($target eq 'web') {
3660: $currentstring = $token->[4];
3661: }
3662: return $currentstring;
3663: }
3664:
3665: sub end_tbody {
3666: my ($target,$token) = @_;
3667: my $currentstring = '';
3668: if ($target eq 'web') {
3669: $currentstring = $token->[2];
3670: }
3671: return $currentstring;
3672: }
3673:
1.166 sakharuk 3674: #-- <tfoot> tag (end tag optional)
1.122 albertel 3675: sub start_tfoot {
3676: my ($target,$token) = @_;
3677: my $currentstring = '';
3678: if ($target eq 'web') {
3679: $currentstring = $token->[4];
3680: }
3681: return $currentstring;
3682: }
3683:
3684: sub end_tfoot {
3685: my ($target,$token) = @_;
3686: my $currentstring = '';
3687: if ($target eq 'web') {
3688: $currentstring = $token->[2];
3689: }
3690: return $currentstring;
3691: }
3692:
1.166 sakharuk 3693: #-- <thead> tag (end tag optional)
1.122 albertel 3694: sub start_thead {
3695: my ($target,$token) = @_;
3696: my $currentstring = '';
3697: if ($target eq 'web') {
3698: $currentstring = $token->[4];
3699: }
3700: return $currentstring;
3701: }
1.10 www 3702:
1.122 albertel 3703: sub end_thead {
3704: my ($target,$token) = @_;
3705: my $currentstring = '';
3706: if ($target eq 'web') {
3707: $currentstring = $token->[2];
3708: }
3709: return $currentstring;
3710: }
1.119 www 3711:
1.122 albertel 3712: #-- <var> tag
3713: sub start_var {
1.44 sakharuk 3714: my ($target,$token) = @_;
3715: my $currentstring = '';
3716: if ($target eq 'web') {
1.122 albertel 3717: $currentstring = $token->[4];
1.163 sakharuk 3718: } elsif ($target eq 'tex') {
3719: $currentstring = '\textit{';
3720: }
1.44 sakharuk 3721: return $currentstring;
3722: }
1.10 www 3723:
1.122 albertel 3724: sub end_var {
3725: my ($target,$token) = @_;
1.44 sakharuk 3726: my $currentstring = '';
3727: if ($target eq 'web') {
1.163 sakharuk 3728: $currentstring = $token->[2];
3729: } elsif ($target eq 'tex') {
3730: $currentstring = '}';
1.44 sakharuk 3731: }
3732: return $currentstring;
3733: }
1.119 www 3734:
1.163 sakharuk 3735: #-- <wbr> tag (end tag forbidden)
1.122 albertel 3736: sub start_wbr {
3737: my ($target,$token) = @_;
3738: my $currentstring = '';
3739: if ($target eq 'web') {
3740: $currentstring = $token->[4];
3741: }
3742: return $currentstring;
1.98 albertel 3743: }
3744:
1.122 albertel 3745: sub end_wbr {
3746: my ($target,$token) = @_;
3747: my $currentstring = '';
3748: if ($target eq 'web') {
3749: $currentstring = $token->[2];
3750: }
3751: return $currentstring;
1.98 albertel 3752: }
1.134 sakharuk 3753:
3754: #-- <hideweboutput> tag
3755: sub start_hideweboutput {
3756: my ($target,$token) = @_;
3757: if ($target eq 'web') {
3758: &Apache::lonxml::startredirection();
3759: }
3760: return '';
3761: }
3762:
3763: sub end_hideweboutput {
3764: my ($target,$token) = @_;
3765: my $currentstring = '';
3766: if ($target eq 'web') {
3767: $currentstring = &Apache::lonxml::endredirection();
3768: }
3769: return '';
3770: }
3771:
1.94 sakharuk 3772:
3773: sub image_replication {
3774: my $src = shift;
1.187 albertel 3775: if (not -e $src) { &Apache::lonnet::repcopy($src); }
3776: #replicates eps or ps
3777: my $epssrc = my $pssrc = $src;
3778: $epssrc =~ s/\.(gif|jpg|jpeg|png)$/.eps/i;
3779: $pssrc =~ s/\.(gif|jpg|jpeg|png)$/.ps/i;
3780: if (not -e $epssrc && not -e $pssrc) {
3781: my $result=&Apache::lonnet::repcopy($epssrc);
1.264 raeburn 3782: if ($result ne 'ok') { &Apache::lonnet::repcopy($pssrc); }
1.94 sakharuk 3783: }
3784: return '';
1.195 sakharuk 3785: }
1.275 foxr 3786: #
3787: # Get correct sizing parameter for an image given
3788: # it's initial ht. and wid. This allows sizing of
3789: # images that are generated on-the-fly (e.g. gnuplot)
3790: # as well as serving as a utility for image_size.
3791: #
3792: # Parameter:
3793: # height_param
3794: # width_param - Initial picture dimensions.
3795: # scaling - A scale factor.
3796: # parstack, - the current stack of tag attributes
3797: # from the xml parser
3798: # safeeval, - pointer to the safespace
3799: # depth, - from what level in the stack to look for attributes
3800: # (assumes -1 if unspecified)
3801: # cis - look for attrubutes case insensitively
3802: # (assumes false)
3803: #
3804: # Returns:
3805: # height, width - new dimensions.
3806: #
3807: sub resize_image {
3808: my ($height_param, $width_param, $scaling,
3809: $parstack, $safeeval, $depth, $cis) = @_;
3810:
3811: # First apply the scaling...
1.271 foxr 3812:
1.275 foxr 3813: $height_param = $height_param * $scaling;
3814: $width_param = $width_param * $scaling;
1.261 foxr 3815:
1.197 sakharuk 3816: #do we have any specified LaTeX size of the picture?
1.261 foxr 3817: my $toget='TeXwidth';
3818: if ($cis) {
3819: $toget=lc($toget);
3820: }
1.256 albertel 3821: my $TeXwidth = &Apache::lonxml::get_param($toget,$parstack,
3822: $safeeval,$depth,$cis);
3823: $toget='TeXheight'; if ($cis) { $toget=lc($toget); }
3824: my $TeXheight = &Apache::lonxml::get_param($toget,$parstack,
3825: $safeeval,$depth,$cis);
1.197 sakharuk 3826: #do we have any specified web size of the picture?
3827: my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval,
1.256 albertel 3828: $depth,1);
3829: if ($TeXwidth) {
1.252 matthew 3830: my $old_width_param=$width_param;
1.197 sakharuk 3831: if ($TeXwidth=~/(\d+)\s*\%/) {
1.267 albertel 3832: $width_param = $1*$env{'form.textwidth'}/100;
1.197 sakharuk 3833: } else {
3834: $width_param = $TeXwidth;
3835: }
1.266 albertel 3836: if ($TeXheight) {
3837: $height_param = $TeXheight;
3838: } elsif ($old_width_param) {
3839: $height_param=$TeXwidth/$old_width_param*$height_param;
3840: }
1.256 albertel 3841: } elsif ($TeXheight) {
1.248 foxr 3842: $height_param = $TeXheight;
1.266 albertel 3843: if ($height_param) {
3844: $width_param = $TeXheight/$height_param*$width_param;
3845: }
1.256 albertel 3846: } elsif ($width) {
1.252 matthew 3847: my $old_width_param=$width_param;
1.256 albertel 3848: $width_param = $width*$scaling;
1.266 albertel 3849: if ($old_width_param) {
3850: $height_param=$width_param/$old_width_param*$height_param;
3851: }
1.252 matthew 3852: }
1.267 albertel 3853: if ($width_param > $env{'form.textwidth'}) {
1.252 matthew 3854: my $old_width_param=$width_param;
1.267 albertel 3855: $width_param =0.95*$env{'form.textwidth'};
1.266 albertel 3856: if ($old_width_param) {
3857: $height_param=$width_param/$old_width_param*$height_param;
3858: }
1.197 sakharuk 3859: }
1.275 foxr 3860:
3861: return ($height_param, $width_param);
3862: }
3863:
3864: sub image_size {
3865: my ($src,$scaling,$parstack,$safeeval,$depth,$cis)=@_;
3866:
3867: #size of image from gif/jpg/jpeg/png
3868: my $ressrc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
3869: if (-e $ressrc) {
3870: $src = $ressrc;
3871: }
3872: my $image = Image::Magick->new;
3873: my $current_figure = $image->Read($src);
3874: my $width_param = $image->Get('width');
3875: my $height_param = $image->Get('height');
3876: &Apache::lonxml::debug("Image magick says: $src : Height = $height_param width = $width_param");
3877: undef($image);
3878:
3879: ($height_param, $width_param) = &resize_image($height_param, $width_param,
3880: $scaling, $parstack, $safeeval,
3881: $depth, $cis);
3882:
1.248 foxr 3883: return ($height_param, $width_param);
3884: }
3885:
3886: sub image_width {
3887: my ($height, $width) = &image_size(@_);
3888: return $width;
3889: }
3890: # Not yet 100% sure this is correct in all circumstances..
3891: # due to my uncertainty about mods to image_size.
3892: #
3893: sub image_height {
3894: my ($height, $width) = &image_size(@_);
3895: return $height;
1.197 sakharuk 3896: }
3897:
1.256 albertel 3898: sub get_eps_image {
3899: my ($src)=@_;
1.261 foxr 3900: my $orig_src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1], $src);
1.275 foxr 3901: &Apache::lonxml::debug("get_eps_image: Original image: $orig_src");
1.256 albertel 3902: $src=~s/\.(gif|png|jpg|jpeg)$/\.eps/i;
3903: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.275 foxr 3904: &Apache::lonxml::debug("Filelocation gives: $src");
1.256 albertel 3905: if (! -e $src) {
1.261 foxr 3906: &Apache::lonxml::debug("$src does not exist");
1.264 raeburn 3907: if (&Apache::lonnet::repcopy($src) ne 'ok' ) {
1.261 foxr 3908: &Apache::lonxml::debug("Repcopy of $src failed (1)");
1.256 albertel 3909: #if replication failed try to find ps file
3910: $src=~s/\.eps$/\.ps/;
1.261 foxr 3911: &Apache::lonxml::debug("Now looking for $src");
1.270 foxr 3912: #if no ps file try to replicate it.
3913: my $didrepcopy = &Apache::lonnet::repcopy($src);
3914: &Apache::lonxml::debug("repcopy of $src ... $didrepcopy");
3915: if ( (not -e $src) ||
3916: ($didrepcopy ne 'ok')) {
1.261 foxr 3917: &Apache::lonxml::debug("Failed to find or replicate $src");
3918:
1.256 albertel 3919: #if replication failed try to produce eps file dynamically
3920: $src=~s/\.ps$/\.eps/;
3921: my $temp_file;
1.267 albertel 3922: open(FILE,">>/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat");
1.256 albertel 3923: my $newsrc=$orig_src;
3924: $newsrc =~ s|(.*)/res/|/home/httpd/html/res/|;
1.275 foxr 3925: &Apache::lonxml::debug("queueing $newsrc for dynamic eps production.");
1.256 albertel 3926: print FILE "$newsrc\n";
1.261 foxr 3927: close FILE;
1.256 albertel 3928: $src=~s|/home/httpd/html/res|/home/httpd/prtspool|;
3929: $src=~s|/home/([^/]*)/public_html/|/home/httpd/prtspool/$1/|;
3930: }
3931: }
3932: }
3933: my ($path,$file)=($src=~m|(.*)/([^/]*)$|);
1.261 foxr 3934: &Apache::lonxml::debug("get_eps_image returning: $path / $file<BR />");
1.256 albertel 3935: return ($path.'/',$file);
3936: }
3937:
1.195 sakharuk 3938: sub eps_generation {
3939: my ($src,$file,$width_param) = @_;
1.267 albertel 3940: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat";
1.195 sakharuk 3941: my $temp_file = Apache::File->new('>>'.$filename);
3942: print $temp_file "$src\n";
3943: my $newsrc = $src;
3944: $newsrc =~ s/(\.gif|\.jpg|\.jpeg)$/\.eps/i;
3945: $newsrc=~s/\/home\/httpd\/html\/res//;
3946: $newsrc=~s/\/home\/([^\/]*)\/public_html\//\/$1\//;
3947: $newsrc=~s/\/\.\//\//;
3948: $newsrc=~s/\/([^\/]+)\.(ps|eps)/\//;
1.213 sakharuk 3949: if ($newsrc=~/\/home\/httpd\/lonUsers\//) {
3950: $newsrc=~s/\/home\/httpd\/lonUsers//;
3951: $newsrc=~s/\/([^\/]+)\/(\w)\/(\w)\/(\w)\//\/$1\//;
3952: }
1.239 sakharuk 3953: if ($newsrc=~/\/userfiles\//) {
3954: return ' \graphicspath{{'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
3955: } else {
3956: return ' \graphicspath{{/home/httpd/prtspool'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
3957: }
1.197 sakharuk 3958: }
3959:
3960: sub file_path {
3961: my $src=shift;
3962: my ($file,$path);
3963: if ($src =~ m!(.*)/([^/]*)$!) {
3964: $file = $2;
3965: $path = $1.'/';
3966: }
3967: return $file,$path;
1.126 sakharuk 3968: }
3969:
3970: sub recalc {
3971: my $argument = shift;
3972: if (not $argument=~/(mm|cm|in|pc|pt)/) {return $argument.' mm';}
1.132 sakharuk 3973: $argument=~/\s*(\d+\.?\d*)\s*(mm|cm|in|pc|pt)/;
1.126 sakharuk 3974: my $value=$1;
3975: my $units=$2;
3976: if ($units eq 'cm') {
3977: $value*=10;
3978: } elsif ($units eq 'in') {
3979: $value*=25.4;
3980: } elsif ($units eq 'pc') {
3981: $value*=(25.4*12/72.27);
3982: } elsif ($units eq 'pt') {
3983: $value*=(25.4/72.27);
3984: }
3985: return $value.' mm';
1.94 sakharuk 3986: }
1.184 sakharuk 3987:
3988: sub LATEX_length {
3989: my $garbage=shift;
1.206 sakharuk 3990: $garbage=~s/^\s+$//;
3991: $garbage=~s/^\s+(\S.*)/$1/;#space before
3992: $garbage=~s/(.*\S)\s+$/$1/;#space after
3993: $garbage=~s/(\s)+/$1/;#only one space
3994: $garbage=~s/(\\begin{([^\}]+)}|\\end{([^\}]+)})//g;#remove LaTeX \begin{...} and \end{...}
3995: $garbage=~s/(\$\_\{|\$\_|\$\^{|\$\^|\}\$)//g;#remove $_{,$_,$^{,$^,}$
3996: $garbage=~s/([^\\])\$/$1/g;#$
3997: $garbage=~s/(\\ensuremath\{\_\{|\\ensuremath\{\_|\\ensuremath\{\^{|\\ensuremath\{\^|\})//g;#remove \ensuremath{...}
3998: $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 3999: $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;
4000: $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;
4001: $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 4002: $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;
4003: $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;
4004: $garbage=~s/(\\hat{([^}]+)}|\\check{([^}]+)}|\\dot{([^}]+)}|\\breve{([^}]+)}|\\acute{([^}]+)}|\\ddot{([^}]+)}|\\grave{([^}]+)}|\\tilde{([^}]+)}|\\mathring{([^}]+)}|\\bar{([^}]+)}|\\vec{([^}]+)})/$1/g;
4005: #remove some other LaTeX command
4006: $garbage=~s|\\(\w+)\\|\\|g;
4007: $garbage=~s|\\(\w+)(\s*)|$2|g;
4008: $garbage=~s|\+|11|g;
1.184 sakharuk 4009: my $value=length($garbage);
4010: return $value;
4011: }
4012:
4013:
4014:
1.94 sakharuk 4015:
1.1 sakharuk 4016: 1;
4017: __END__
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