Annotation of loncom/xml/londefdef.pm, revision 1.277
1.1 sakharuk 1: # The LearningOnline Network with CAPA
2: # Tags Default Definition Module
3: #
1.277 ! foxr 4: # $Id: londefdef.pm,v 1.276 2005/07/05 18:59:03 albertel 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:
1.267 albertel 538: if ($env{'request.state'} ne 'construct') {
1.247 albertel 539: $currentstring .= '<'.$token->[1];
540: }
1.122 albertel 541: foreach (keys %{$token->[2]}) {
542: $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
543: }
1.267 albertel 544: if ($env{'request.state'} ne 'construct') {
1.247 albertel 545: $currentstring.='>';
546: }
1.267 albertel 547: if ($env{'request.state'} ne 'published') {
548: my $remote=($env{'environment.remote'} ne 'off');
1.247 albertel 549: $currentstring=&Apache::loncommon::bodytag(undef,undef,
550: $currentstring,$remote);
1.122 albertel 551: $currentstring.=(<<EDITBUTTON);
1.40 albertel 552: <form method="post">
1.200 matthew 553: <input type="submit" name="editmode" accesskey="e" value="Edit" />
1.40 albertel 554: </form>
555: EDITBUTTON
1.122 albertel 556: } else {
557: $currentstring.=&Apache::lonmenu::menubuttons(undef,$target,1);
1.1 sakharuk 558: }
1.201 albertel 559: $currentstring.=&Apache::lonxml::message_location();
1.122 albertel 560: } elsif ($target eq 'tex') {
561: $currentstring = '\begin{document}';
562: }
563: return $currentstring;
564: }
565:
566: sub end_body {
1.259 albertel 567: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 ! foxr 568: my $currentstring = &end_p; # Close off unclosed <p>
1.122 albertel 569: if ($target eq 'web') {
1.277 ! foxr 570: $currentstring .= &Apache::lonxml::xmlend($target,$parser);
1.122 albertel 571: } elsif ($target eq 'tex') {
1.277 ! foxr 572: $currentstring .= '\strut\newline\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\newline\noindent \end{document}';
1.122 albertel 573: }
574: return $currentstring;
575: }
576:
1.181 sakharuk 577: #-- <center> tag (end tag required)
1.122 albertel 578: sub start_center {
579: my ($target,$token) = @_;
1.277 ! foxr 580: my $currentstring = &end_p; # Close off any prior para.
1.122 albertel 581: if ($target eq 'web') {
1.277 ! foxr 582: $currentstring .= $token->[4];
1.122 albertel 583: } elsif ($target eq 'tex') {
1.277 ! foxr 584: $currentstring .= '\begin{center}';
1.144 sakharuk 585: }
1.122 albertel 586: return $currentstring;
587: }
588:
589: sub end_center {
590: my ($target,$token) = @_;
591: my $currentstring = '';
592: if ($target eq 'web') {
593: $currentstring = $token->[2];
594: } elsif ($target eq 'tex') {
595: $currentstring = '\end{center}';
1.144 sakharuk 596: }
1.122 albertel 597: return $currentstring;
598: }
599:
1.181 sakharuk 600: #-- <b> tag (end tag required)
1.122 albertel 601: sub start_b {
602: my ($target,$token) = @_;
603: my $currentstring = '';
604: if ($target eq 'web') {
605: $currentstring = $token->[4];
606: } elsif ($target eq 'tex') {
607: $currentstring = '\textbf{';
608: }
609: return $currentstring;
610: }
611:
612: sub end_b {
613: my ($target,$token) = @_;
614: my $currentstring = '';
615: if ($target eq 'web') {
616: $currentstring = $token->[2];
617: } elsif ($target eq 'tex') {
618: $currentstring = '}';
619: }
620: return $currentstring;
621: }
1.35 sakharuk 622:
1.181 sakharuk 623: #-- <strong> tag (end tag required)
1.122 albertel 624: sub start_strong {
625: my ($target,$token) = @_;
626: my $currentstring = '';
627: if ($target eq 'web') {
628: $currentstring = $token->[4];
629: } elsif ($target eq 'tex') {
630: $currentstring = '\textbf{';
631: }
632: return $currentstring;
633: }
634:
635: sub end_strong {
636: my ($target,$token) = @_;
637: my $currentstring = '';
1.182 sakharuk 638: if ($target eq 'web') {
1.122 albertel 639: $currentstring = $token->[2];
640: } elsif ($target eq 'tex') {
641: $currentstring = '}';
1.144 sakharuk 642: }
1.122 albertel 643: return $currentstring;
644: }
645:
1.181 sakharuk 646: #-- <h1> tag (end tag required)
1.122 albertel 647: sub start_h1 {
1.125 sakharuk 648: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 ! foxr 649: my $currentstring = &end_p; # Close off any prior para.
1.122 albertel 650: if ($target eq 'web') {
651: $currentstring .= $token->[4];
652: } elsif ($target eq 'tex') {
1.125 sakharuk 653: my $pre;
1.199 albertel 654: my $align=lc(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1));
1.212 sakharuk 655: if ($align eq 'center') {
1.125 sakharuk 656: $pre='\begin{center}';
657: } elsif ($align eq 'left') {
658: $pre='\rlap{';
659: } elsif ($align eq 'right') {
660: $pre=' \hfill \llap{';
661: }
662: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
663: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 664: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 665: } elsif ($target eq 'meta') {
1.277 ! foxr 666: $currentstring.='<subject>';
1.185 albertel 667: &start_output($target);
1.122 albertel 668: }
669: return $currentstring;
670: }
671:
672: sub end_h1 {
1.125 sakharuk 673: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 674: my $currentstring = '';
675: if ($target eq 'web') {
676: $currentstring .= $token->[2];
677: } elsif ($target eq 'tex') {
1.212 sakharuk 678: my $post='\vskip 0 mm ';
1.125 sakharuk 679: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 680: if ($align eq 'center') {
1.125 sakharuk 681: $post='\end{center}';
682: } elsif ($align eq 'left') {
683: $post='} \hfill'.'\vskip 0 mm ';
684: } elsif ($align eq 'right') {
685: $post='}'.'\vskip 0 mm ';
686: }
687: $currentstring .= '}}'.$post;
1.122 albertel 688: } elsif ($target eq 'meta') {
1.185 albertel 689: &end_output($target);
1.122 albertel 690: $currentstring='</subject>';
691: }
692: return $currentstring;
693: }
694:
1.35 sakharuk 695: #-- <h2> tag
1.122 albertel 696: sub start_h2 {
1.125 sakharuk 697: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 ! foxr 698: my $currentstring = &end_p; # Close off any prior para.
1.122 albertel 699: if ($target eq 'web') {
700: $currentstring .= $token->[4];
701: } elsif ($target eq 'tex') {
1.125 sakharuk 702: my $pre;
703: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 704: if ($align eq 'center') {
1.125 sakharuk 705: $pre='\begin{center}';
706: } elsif ($align eq 'left') {
707: $pre='\rlap{';
708: } elsif ($align eq 'right') {
709: $pre=' \hfill \llap{';
710: }
711: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
712: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 713: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 714: }
715: return $currentstring;
716: }
717:
718: sub end_h2 {
1.125 sakharuk 719: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 720: my $currentstring = '';
721: if ($target eq 'web') {
722: $currentstring .= $token->[2];
723: } elsif ($target eq 'tex') {
1.212 sakharuk 724: my $post='\vskip 0 mm ';
1.125 sakharuk 725: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 726: if ($align eq 'center') {
1.125 sakharuk 727: $post='\end{center}';
728: } elsif ($align eq 'left') {
729: $post='} \hfill'.'\vskip 0 mm ';
730: } elsif ($align eq 'right') {
731: $post='}'.'\vskip 0 mm ';
732: }
733: $currentstring .= '}}'.$post;
1.122 albertel 734: }
735: return $currentstring;
736: }
737:
1.35 sakharuk 738: #-- <h3> tag
1.122 albertel 739: sub start_h3 {
1.125 sakharuk 740: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 ! foxr 741: my $currentstring = &end_p; # Close off any prior para.
1.122 albertel 742: if ($target eq 'web') {
743: $currentstring .= $token->[4];
744: } elsif ($target eq 'tex') {
1.125 sakharuk 745: my $pre;
746: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 747: if ($align eq 'center') {
1.125 sakharuk 748: $pre='\begin{center}';
749: } elsif ($align eq 'left') {
750: $pre='\rlap{';
751: } elsif ($align eq 'right') {
752: $pre=' \hfill \llap{';
753: }
754: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
755: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 756: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 757: }
758: return $currentstring;
759: }
760:
761: sub end_h3 {
1.125 sakharuk 762: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 763: my $currentstring = '';
764: if ($target eq 'web') {
765: $currentstring .= $token->[2];
766: } elsif ($target eq 'tex') {
1.212 sakharuk 767: my $post='\vskip 0 mm ';
1.125 sakharuk 768: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 769: if ($align eq 'center') {
1.125 sakharuk 770: $post='\end{center}';
771: } elsif ($align eq 'left') {
772: $post='} \hfill'.'\vskip 0 mm ';
773: } elsif ($align eq 'right') {
774: $post='}'.'\vskip 0 mm ';
775: }
776: $currentstring .= '}}'.$post;
1.122 albertel 777: }
778: return $currentstring;
779: }
780:
1.35 sakharuk 781: #-- <h4> tag
1.122 albertel 782: sub start_h4 {
1.125 sakharuk 783: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 ! foxr 784: my $currentstring = &end_p; # Close off any prior para.
1.122 albertel 785: if ($target eq 'web') {
786: $currentstring .= $token->[4];
787: } elsif ($target eq 'tex') {
1.125 sakharuk 788: my $pre;
789: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 790: if ($align eq 'center') {
1.125 sakharuk 791: $pre='\begin{center}';
792: } elsif ($align eq 'left') {
793: $pre='\rlap{';
794: } elsif ($align eq 'right') {
795: $pre=' \hfill \llap{';
796: }
797: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
798: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 799: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 800: }
801: return $currentstring;
802: }
803:
804: sub end_h4 {
1.125 sakharuk 805: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 806: my $currentstring = '';
807: if ($target eq 'web') {
808: $currentstring .= $token->[2];
809: } elsif ($target eq 'tex') {
1.212 sakharuk 810: my $post='\vskip 0 mm ';
1.125 sakharuk 811: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 812: if ($align eq 'center') {
1.125 sakharuk 813: $post='\end{center}';
814: } elsif ($align eq 'left') {
815: $post='} \hfill'.'\vskip 0 mm ';
816: } elsif ($align eq 'right') {
817: $post='}'.'\vskip 0 mm ';
818: }
819: $currentstring .= '}}'.$post;
1.122 albertel 820: }
821: return $currentstring;
822: }
823:
1.35 sakharuk 824: #-- <h5> tag
1.122 albertel 825: sub start_h5 {
1.125 sakharuk 826: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 ! foxr 827: my $currentstring = &end_p; # Close off any prior paras.
1.122 albertel 828: if ($target eq 'web') {
829: $currentstring .= $token->[4];
830: } elsif ($target eq 'tex') {
1.125 sakharuk 831: my $pre;
832: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 833: if ($align eq 'center') {
1.125 sakharuk 834: $pre='\begin{center}';
835: } elsif ($align eq 'left') {
836: $pre='\rlap{';
837: } elsif ($align eq 'right') {
838: $pre=' \hfill \llap{';
839: }
840: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
841: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 842: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 843: }
844: return $currentstring;
845: }
846:
847: sub end_h5 {
1.125 sakharuk 848: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 849: my $currentstring = '';
850: if ($target eq 'web') {
851: $currentstring .= $token->[2];
852: } elsif ($target eq 'tex') {
1.212 sakharuk 853: my $post='\vskip 0 mm ';
1.125 sakharuk 854: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 855: if ($align eq 'center') {
1.125 sakharuk 856: $post='\end{center}';
857: } elsif ($align eq 'left') {
858: $post='} \hfill'.'\vskip 0 mm ';
859: } elsif ($align eq 'right') {
860: $post='}'.'\vskip 0 mm ';
861: }
862: $currentstring .= '}}'.$post;
1.122 albertel 863: }
864: return $currentstring;
865: }
866:
1.35 sakharuk 867: #-- <h6> tag
1.122 albertel 868: sub start_h6 {
1.125 sakharuk 869: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 ! foxr 870: my $currentstring = &end_p; # Close off any prior paras.
1.122 albertel 871: if ($target eq 'web') {
872: $currentstring .= $token->[4];
873: } elsif ($target eq 'tex') {
1.125 sakharuk 874: my $pre;
875: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 876: if ($align eq 'center') {
1.125 sakharuk 877: $pre='\begin{center}';
878: } elsif ($align eq 'left') {
879: $pre='\rlap{';
880: } elsif ($align eq 'right') {
881: $pre=' \hfill \llap{';
882: }
883: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
884: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 885: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 886: }
887: return $currentstring;
888: }
889:
890: sub end_h6 {
1.125 sakharuk 891: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 892: my $currentstring = '';
893: if ($target eq 'web') {
894: $currentstring .= $token->[2];
895: } elsif ($target eq 'tex') {
1.212 sakharuk 896: my $post='\vskip 0 mm ';
1.125 sakharuk 897: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 898: if ($align eq 'center') {
1.125 sakharuk 899: $post='\end{center}';
900: } elsif ($align eq 'left') {
901: $post='} \hfill'.'\vskip 0 mm ';
902: } elsif ($align eq 'right') {
903: $post='}'.'\vskip 0 mm ';
904: }
905: $currentstring .= '}}'.$post;
1.122 albertel 906: }
907: return $currentstring;
908: }
909:
1.181 sakharuk 910: #--- <cite> tag (end tag required)
1.122 albertel 911: sub start_cite {
912: my ($target,$token) = @_;
913: my $currentstring = '';
914: if ($target eq 'web') {
915: $currentstring .= $token->[4];
916: } elsif ($target eq 'tex') {
1.179 sakharuk 917: $currentstring .= '\textit{';
1.144 sakharuk 918: }
1.122 albertel 919: return $currentstring;
920: }
921:
922: sub end_cite {
923: my ($target,$token) = @_;
924: my $currentstring = '';
925: if ($target eq 'web') {
926: $currentstring .= $token->[2];
927: } elsif ($target eq 'tex') {
1.179 sakharuk 928: $currentstring .= '}';
1.144 sakharuk 929: }
1.122 albertel 930: return $currentstring;
931: }
932:
1.181 sakharuk 933: #-- <i> tag (end tag required)
1.122 albertel 934: sub start_i {
935: my ($target,$token) = @_;
936: my $currentstring = '';
937: if ($target eq 'web') {
938: $currentstring .= $token->[4];
939: } elsif ($target eq 'tex') {
940: $currentstring .= '\textit{';
1.144 sakharuk 941: }
1.122 albertel 942: return $currentstring;
943: }
944:
945: sub end_i {
946: my ($target,$token) = @_;
947: my $currentstring = '';
948: if ($target eq 'web') {
949: $currentstring .= $token->[2];
950: } elsif ($target eq 'tex') {
951: $currentstring .= '}';
952: }
953: return $currentstring;
954: }
955:
1.181 sakharuk 956: #-- <address> tag (end tag required)
1.122 albertel 957: sub start_address {
958: my ($target,$token) = @_;
959: my $currentstring = '';
960: if ($target eq 'web') {
961: $currentstring .= $token->[4];
962: } elsif ($target eq 'tex') {
1.179 sakharuk 963: $currentstring .= '\textit{';
1.144 sakharuk 964: }
1.122 albertel 965: return $currentstring;
966: }
967:
968: sub end_address {
969: my ($target,$token) = @_;
970: my $currentstring = '';
971: if ($target eq 'web') {
972: $currentstring .= $token->[2];
973: } elsif ($target eq 'tex') {
1.179 sakharuk 974: $currentstring .= '}';
1.122 albertel 975: }
976: return $currentstring;
977: }
978:
1.181 sakharuk 979: #-- <dfn> tag (end tag required)
1.122 albertel 980: sub start_dfn {
981: my ($target,$token) = @_;
982: my $currentstring = '';
983: if ($target eq 'web') {
984: $currentstring .= $token->[4];
985: } elsif ($target eq 'tex') {
1.179 sakharuk 986: $currentstring .= '\textit{';
1.122 albertel 987: }
988: return $currentstring;
989: }
990:
991: sub end_dfn {
992: my ($target,$token) = @_;
993: my $currentstring = '';
994: if ($target eq 'web') {
995: $currentstring .= $token->[2];
996: } elsif ($target eq 'tex') {
1.179 sakharuk 997: $currentstring .= '}';
1.144 sakharuk 998: }
1.122 albertel 999: return $currentstring;
1000: }
1001:
1.181 sakharuk 1002: #-- <tt> tag (end tag required)
1.122 albertel 1003: sub start_tt {
1004: my ($target,$token) = @_;
1005: my $currentstring = '';
1006: if ($target eq 'web') {
1007: $currentstring .= $token->[4];
1008: } elsif ($target eq 'tex') {
1009: $currentstring .= '\texttt{';
1.144 sakharuk 1010: }
1.122 albertel 1011: return $currentstring;
1012: }
1013:
1014: sub end_tt {
1015: my ($target,$token) = @_;
1016: my $currentstring = '';
1017: if ($target eq 'web') {
1018: $currentstring .= $token->[2];
1019: } elsif ($target eq 'tex') {
1020: $currentstring .= '}';
1021: }
1022: return $currentstring;
1023: }
1024:
1.181 sakharuk 1025: #-- <kbd> tag (end tag required)
1.122 albertel 1026: sub start_kbd {
1027: my ($target,$token) = @_;
1028: my $currentstring = '';
1029: if ($target eq 'web') {
1030: $currentstring .= $token->[4];
1031: } elsif ($target eq 'tex') {
1.179 sakharuk 1032: $currentstring .= '\texttt{';
1.144 sakharuk 1033: }
1.122 albertel 1034: return $currentstring;
1035: }
1036:
1037: sub end_kbd {
1038: my ($target,$token) = @_;
1039: my $currentstring = '';
1040: if ($target eq 'web') {
1041: $currentstring .= $token->[2];
1042: } elsif ($target eq 'tex') {
1.179 sakharuk 1043: $currentstring .= '}';
1.144 sakharuk 1044: }
1.122 albertel 1045: return $currentstring;
1046: }
1047:
1.181 sakharuk 1048: #-- <code> tag (end tag required)
1.122 albertel 1049: sub start_code {
1050: my ($target,$token) = @_;
1051: my $currentstring = '';
1052: if ($target eq 'web') {
1053: $currentstring .= $token->[4];
1054: } elsif ($target eq 'tex') {
1055: $currentstring .= '\texttt{';
1056: }
1057: return $currentstring;
1058: }
1059:
1060: sub end_code {
1061: my ($target,$token) = @_;
1062: my $currentstring = '';
1063: if ($target eq 'web') {
1064: $currentstring .= $token->[2];
1065: } elsif ($target eq 'tex') {
1066: $currentstring .= '}';
1067: }
1068: return $currentstring;
1069: }
1070:
1.181 sakharuk 1071: #-- <em> tag (end tag required)
1.122 albertel 1072: sub start_em {
1073: my ($target,$token) = @_;
1074: my $currentstring = '';
1075: if ($target eq 'web') {
1076: $currentstring .= $token->[4];
1077: } elsif ($target eq 'tex') {
1078: $currentstring .= '\emph{';
1.144 sakharuk 1079: }
1.122 albertel 1080: return $currentstring;
1081: }
1082:
1083: sub end_em {
1084: my ($target,$token) = @_;
1085: my $currentstring = '';
1086: if ($target eq 'web') {
1087: $currentstring .= $token->[2];
1088: } elsif ($target eq 'tex') {
1089: $currentstring .= '}';
1.144 sakharuk 1090: }
1.122 albertel 1091: return $currentstring;
1092: }
1093:
1.181 sakharuk 1094: #-- <q> tag (end tag required)
1.122 albertel 1095: sub start_q {
1096: my ($target,$token) = @_;
1097: my $currentstring = '';
1098: if ($target eq 'web') {
1099: $currentstring .= $token->[4];
1100: } elsif ($target eq 'tex') {
1.179 sakharuk 1101: $currentstring .= '\emph{';
1.122 albertel 1102: }
1103: return $currentstring;
1104: }
1105:
1106: sub end_q {
1107: my ($target,$token) = @_;
1108: my $currentstring = '';
1109: if ($target eq 'web') {
1110: $currentstring .= $token->[2];
1111: } elsif ($target eq 'tex') {
1.179 sakharuk 1112: $currentstring .= '}';
1.144 sakharuk 1113: }
1.122 albertel 1114: return $currentstring;
1115: }
1116:
1.277 ! foxr 1117: # <p> is a bit strange since it does not require a closing </p>
! 1118: # However in latex, we must often output closing stuff to end
! 1119: # environments and {}'s etc. Therefore we do all the work
! 1120: # of figuring out the ending strings in the start tag processing,
! 1121: # and provide a mechanism to output the stop text external
! 1122: # to tag processing.
! 1123: #
! 1124: {
! 1125:
! 1126: my $closing_string = ''; # String required to close <p>
! 1127:
1.181 sakharuk 1128: #-- <p> tag (end tag optional)
1.198 sakharuk 1129: #optional attribute - align="center|left|right"
1.122 albertel 1130: sub start_p {
1.157 sakharuk 1131: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 ! foxr 1132: my $currentstring = &end_p; # close off prior para if in progress.
1.122 albertel 1133: if ($target eq 'web') {
1134: $currentstring .= $token->[4];
1.277 ! foxr 1135: $closing_string = '</p>'; # Not sure this is correct.
1.122 albertel 1136: } elsif ($target eq 'tex') {
1.198 sakharuk 1137: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1138: if ($align eq 'center') {
1.277 ! foxr 1139: $currentstring .='\begin{center}\par';
! 1140: $closing_string = '\end{center}';
1.198 sakharuk 1141: } elsif ($align eq 'right') {
1.277 ! foxr 1142: $currentstring.='\makebox['.$env{'form.textwidth'}.']{\hfill\llap{';
! 1143: $closing_string= '}}';
1.198 sakharuk 1144: } elsif ($align eq 'left') {
1.277 ! foxr 1145: $currentstring.='\noindent\makebox['.$env{'form.textwidth'}.']{\rlap{';
! 1146: $closing_string = '}\hfill}';
1.216 matthew 1147: } else {
1.277 ! foxr 1148: $currentstring.='\par ';
! 1149: $closing_string = '\strut\\\\\strut';
1.216 matthew 1150: }
1.198 sakharuk 1151: my $signal=1;#<p> does not work inside <b>...</b>
1.277 ! foxr 1152: foreach my $tag (@$tagstack) {
! 1153: if (lc($tag) eq 'b') {
! 1154: $signal=0;
! 1155: }
! 1156: }
! 1157: if (!$signal) {
! 1158: $currentstring = &end_p; # Just close the prior? Not sure this is correct
! 1159: $closing_string = ''; # Probably correct?
1.198 sakharuk 1160: }
1.277 ! foxr 1161:
1.144 sakharuk 1162: }
1.122 albertel 1163: return $currentstring;
1164: }
1.277 ! foxr 1165: #
! 1166: # End paragraph processing just requires that we output the
! 1167: # closing string that was saved and blank it.
! 1168: sub end_p {
! 1169: my $current_string = $closing_string;
! 1170: $closing_string = ''; # Not in a para anymore.
! 1171: return $current_string;
1.122 albertel 1172:
1173: }
1.277 ! foxr 1174: }
1.181 sakharuk 1175: #-- <br> tag (end tag forbidden)
1.122 albertel 1176: sub start_br {
1177: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1178: my $currentstring = '';
1179: if ($target eq 'web') {
1180: $currentstring .= $token->[4];
1181: } elsif ($target eq 'tex') {
1.227 sakharuk 1182: my @tempo=@$tagstack;
1.229 sakharuk 1183: my $signal=0;
1.227 sakharuk 1184: for (my $i=$#tempo;$i>=0;$i--) {
1185: if (($tempo[$i] eq 'b') || ($tempo[$i] eq 'strong') ||
1.230 sakharuk 1186: ($tempo[$i] eq 'ol') || ($tempo[$i] eq 'ul') ||
1187: ($tempo[$i] eq 'td') || ($tempo[$i] eq 'th')) {
1.229 sakharuk 1188: $signal=1;
1.227 sakharuk 1189: last;
1190: }
1191: }
1.229 sakharuk 1192: if ($signal) {
1.219 sakharuk 1193: $currentstring .= ' \vskip 0 mm ';
1194: } elsif ($$tagstack[-2] ne 'sub' && $$tagstack[-2] ne 'sup') {
1195: $currentstring .= '\strut \\\\ \strut ';
1.1 sakharuk 1196: }
1.144 sakharuk 1197: }
1.122 albertel 1198: return $currentstring;
1199: }
1200:
1201: sub end_br {
1202: my ($target,$token) = @_;
1203: my $currentstring = '';
1204: if ($target eq 'web') {
1205: $currentstring .= $token->[2];
1206: }
1207: return $currentstring;
1208: }
1209:
1.181 sakharuk 1210: #-- <big> tag (end tag required)
1.122 albertel 1211: sub start_big {
1212: my ($target,$token) = @_;
1213: my $currentstring = '';
1214: if ($target eq 'web') {
1215: $currentstring .= $token->[4];
1216: } elsif ($target eq 'tex') {
1.137 sakharuk 1217: $currentstring .= '{\large ';
1.144 sakharuk 1218: }
1.122 albertel 1219: return $currentstring;
1220: }
1221:
1222: sub end_big {
1223: my ($target,$token) = @_;
1224: my $currentstring = '';
1225: if ($target eq 'web') {
1226: $currentstring .= $token->[2];
1227: } elsif ($target eq 'tex') {
1228: $currentstring .= '}';
1229: }
1230: return $currentstring;
1231: }
1232:
1.181 sakharuk 1233: #-- <small> tag (end tag required)
1.122 albertel 1234: sub start_small {
1235: my ($target,$token) = @_;
1236: my $currentstring = '';
1237: if ($target eq 'web') {
1238: $currentstring .= $token->[4];
1239: } elsif ($target eq 'tex') {
1240: $currentstring .= '{\footnotesize ';
1.144 sakharuk 1241: }
1.122 albertel 1242: return $currentstring;
1243: }
1244:
1245: sub end_small {
1246: my ($target,$token) = @_;
1247: my $currentstring = '';
1248: if ($target eq 'web') {
1249: $currentstring .= $token->[2];
1250: } elsif ($target eq 'tex') {
1251: $currentstring .= '}';
1252: }
1253: return $currentstring;
1254: }
1255:
1.181 sakharuk 1256: #-- <basefont> tag (end tag forbidden)
1.122 albertel 1257: sub start_basefont {
1.126 sakharuk 1258: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.122 albertel 1259: my $currentstring = '';
1260: if ($target eq 'web') {
1261: $currentstring = $token->[4];
1.126 sakharuk 1262: } elsif ($target eq 'tex') {
1263: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1264: if (defined $basesize) {
1265: $currentstring = '{\\'.$basesize.' ';
1266: }
1267: }
1.122 albertel 1268: return $currentstring;
1269: }
1270:
1271: sub end_basefont {
1.126 sakharuk 1272: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1273: my $currentstring = '';
1274: if ($target eq 'web') {
1275: $currentstring = $token->[4];
1.126 sakharuk 1276: } elsif ($target eq 'tex') {
1277: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1278: if (defined $basesize) {
1279: $currentstring = '}';
1280: }
1281: }
1.122 albertel 1282: return $currentstring;
1283: }
1284:
1.181 sakharuk 1285: #-- <font> tag (end tag required)
1.122 albertel 1286: sub start_font {
1287: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1288: my $currentstring = '';
1289: if ($target eq 'web') {
1290: my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
1.204 albertel 1291: if ($face!~/symbol/i) {
1.267 albertel 1292: if (($env{'browser.fontenhance'} eq 'on') ||
1293: ($env{'browser.blackwhite'} eq 'on')) { return ''; }
1.155 www 1294: }
1.122 albertel 1295: $currentstring = $token->[4];
1.126 sakharuk 1296: } elsif ($target eq 'tex') {
1297: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1298: if (defined $fontsize) {
1299: $currentstring = '{\\'.$fontsize.' ';
1300: }
1301: }
1.122 albertel 1302: return $currentstring;
1303: }
1304:
1305: sub end_font {
1306: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1307: my $currentstring = '';
1308: if ($target eq 'web') {
1309: $currentstring = $token->[2];
1.126 sakharuk 1310: } elsif ($target eq 'tex') {
1311: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1312: if (defined $fontsize) {
1313: $currentstring = '}';
1314: }
1315: }
1.122 albertel 1316: return $currentstring;
1317: }
1318:
1.181 sakharuk 1319: #-- <strike> tag (end tag required)
1.122 albertel 1320: sub start_strike {
1321: my ($target,$token) = @_;
1322: my $currentstring = '';
1323: if ($target eq 'web') {
1324: $currentstring .= $token->[4];
1325: } elsif ($target eq 'tex') {
1326: &Apache::lonxml::startredirection();
1327: }
1328: return $currentstring;
1329: }
1330:
1331: sub end_strike {
1332: my ($target,$token) = @_;
1333: my $currentstring = '';
1334: if ($target eq 'web') {
1335: $currentstring .= $token->[2];
1336: } elsif ($target eq 'tex') {
1337: $currentstring=&Apache::lonxml::endredirection();
1338: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1339: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1340: $currentstring=~s/(\S)\s*$/$1\}/;
1341: }
1342: return $currentstring;
1343: }
1344:
1.181 sakharuk 1345: #-- <s> tag (end tag required)
1.122 albertel 1346: sub start_s {
1347: my ($target,$token) = @_;
1348: my $currentstring = '';
1349: if ($target eq 'web') {
1350: $currentstring .= $token->[4];
1351: } elsif ($target eq 'tex') {
1352: &Apache::lonxml::startredirection();
1353: }
1354: return $currentstring;
1355: }
1356:
1357: sub end_s {
1358: my ($target,$token) = @_;
1359: my $currentstring = '';
1360: if ($target eq 'web') {
1361: $currentstring .= $token->[2];
1362: } elsif ($target eq 'tex') {
1363: $currentstring=&Apache::lonxml::endredirection();
1364: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1365: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1366: $currentstring=~s/(\S)\s*$/$1\}/;
1367: }
1368: return $currentstring;
1369: }
1370:
1.181 sakharuk 1371: #-- <sub> tag (end tag required)
1.122 albertel 1372: sub start_sub {
1373: my ($target,$token) = @_;
1374: my $currentstring = '';
1375: if ($target eq 'web') {
1376: $currentstring .= $token->[4];
1377: } elsif ($target eq 'tex') {
1.202 sakharuk 1378: $currentstring .= '\ensuremath{_{';
1.122 albertel 1379: }
1380: return $currentstring;
1381: }
1382:
1383: sub end_sub {
1384: my ($target,$token) = @_;
1385: my $currentstring = '';
1386: if ($target eq 'web') {
1387: $currentstring .= $token->[2];
1388: } elsif ($target eq 'tex') {
1.202 sakharuk 1389: $currentstring .= '}}';
1.122 albertel 1390: }
1391: return $currentstring;
1392: }
1393:
1.181 sakharuk 1394: #-- <sup> tag (end tag required)
1.122 albertel 1395: sub start_sup {
1396: my ($target,$token) = @_;
1397: my $currentstring = '';
1398: if ($target eq 'web') {
1399: $currentstring .= $token->[4];
1400: } elsif ($target eq 'tex') {
1.202 sakharuk 1401: $currentstring .= '\ensuremath{^{';
1.122 albertel 1402: }
1403: return $currentstring;
1404: }
1405:
1406: sub end_sup {
1407: my ($target,$token) = @_;
1408: my $currentstring = '';
1409: if ($target eq 'web') {
1410: $currentstring .= $token->[2];
1411: } elsif ($target eq 'tex') {
1.202 sakharuk 1412: $currentstring .= '}}';
1.122 albertel 1413: }
1414: return $currentstring;
1415: }
1416:
1.181 sakharuk 1417: #-- <hr> tag (end tag forbidden)
1.122 albertel 1418: sub start_hr {
1.124 sakharuk 1419: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 ! foxr 1420: my $currentstring = &end_p; # End enclosing para.
1.122 albertel 1421: if ($target eq 'web') {
1422: $currentstring .= $token->[4];
1423: } elsif ($target eq 'tex') {
1.149 sakharuk 1424: my $LaTeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1.124 sakharuk 1425: if (defined $LaTeXwidth) {
1426: if ($LaTeXwidth=~/^%/) {
1427: substr($LaTeXwidth,0,1)='';
1428: $LaTeXwidth=($LaTeXwidth/100).'\textwidth';
1429: }
1430: } else {
1.148 sakharuk 1431: $LaTeXwidth ='0.9\textwidth';
1.124 sakharuk 1432: }
1433: my ($pre,$post);
1434: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1435: if (($align eq 'center') || (not defined $align)) {
1436: $pre=''; $post='';
1437: } elsif ($align eq 'left') {
1438: $pre='\rlap{'; $post='} \hfill';
1439: } elsif ($align eq 'right') {
1440: $pre=' \hfill \llap{'; $post='}';
1441: }
1.148 sakharuk 1442: $currentstring .= ' \vskip 0 mm \noindent\makebox['.$LaTeXwidth.']{'.$pre.'\makebox['.
1.124 sakharuk 1443: $LaTeXwidth.'][b]{\hrulefill}'.$post.'}\vskip 0 mm ';
1.122 albertel 1444: }
1445: return $currentstring;
1446: }
1447:
1448: sub end_hr {
1449: my ($target,$token) = @_;
1450: my $currentstring = '';
1451: if ($target eq 'web') {
1452: $currentstring .= $token->[2];
1.148 sakharuk 1453: }
1.122 albertel 1454: return $currentstring;
1455: }
1456:
1.181 sakharuk 1457: #-- <div> tag (end tag required)
1.122 albertel 1458: sub start_div {
1459: my ($target,$token) = @_;
1.277 ! foxr 1460: my $currentstring = &end_p; # Close enclosing para.
1.122 albertel 1461: if ($target eq 'web') {
1462: $currentstring .= $token->[4];
1463: }
1464: return $currentstring;
1465: }
1466:
1467: sub end_div {
1468: my ($target,$token) = @_;
1469: my $currentstring = '';
1470: if ($target eq 'web') {
1471: $currentstring .= $token->[2];
1472: }
1473: return $currentstring;
1474: }
1475:
1.181 sakharuk 1476: #-- <a> tag (end tag required)
1.122 albertel 1477: sub start_a {
1.149 sakharuk 1478: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1479: my $currentstring = '';
1480: if ($target eq 'web') {
1.250 albertel 1481: my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
1482: undef,1);
1483: $currentstring=&Apache::lonenc::encrypt_ref($token,{'href'=>$href});
1.122 albertel 1484: } elsif ($target eq 'tex') {
1.149 sakharuk 1485: my $a=&Apache::lonxml::get_param('href',$parstack,$safeeval,undef,1);
1.161 sakharuk 1486: my $b=&Apache::lonxml::get_param('name',$parstack,$safeeval,undef,1);
1487: if ($a=~/\S/) {
1488: $a=~s/([^\\])%/$1\\\%/g;
1489: $currentstring .= '\ref{URI: '.$a.'}';
1490: } elsif ($b=~/\S/) {
1491: $currentstring .= '\ref{Anchor: '.$b.'}';
1492: } else {
1493: $currentstring.='';
1494: }
1.122 albertel 1495: }
1496: return $currentstring;
1497: }
1498:
1499: sub end_a {
1.168 albertel 1500: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1501: my $currentstring = '';
1502: if ($target eq 'web') {
1503: $currentstring .= $token->[2];
1504: }
1505: return $currentstring;
1506: }
1507:
1.181 sakharuk 1508: #-- <li> tag (end tag optional)
1.122 albertel 1509: sub start_li {
1.168 albertel 1510: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1511: my $currentstring = '';
1512: if ($target eq 'web') {
1513: $currentstring = $token->[4];
1514: } elsif ($target eq 'tex') {
1.237 sakharuk 1515: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1516: my $value=&Apache::lonxml::get_param('value',$parstack,$safeeval,undef,0);
1.238 albertel 1517: #FIXME need to support types i and I
1518: if ($type=~/disc/) {
1519: $currentstring .= ' \item[$\bullet$] ';
1520: } elsif ($type=~/circle/) {
1521: $currentstring .= ' \item[$\circ$] ';
1.146 sakharuk 1522: } elsif ($type=~/square/) {
1.238 albertel 1523: $currentstring .= ' \item[$\diamond$] ';
1524: } elsif ($type eq '1') {
1525: $currentstring .= ' \item['.($Apache::londefdef::list_index+1).'.]';
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 ($type eq 'a') {
1.238 albertel 1529: $currentstring .= ' \item['.('a'..'z')[$Apache::londefdef::list_index].'.]';
1.237 sakharuk 1530: } elsif ($value ne '') {
1531: $currentstring .= ' \item['.$value.'] ';
1.122 albertel 1532: } else {
1.146 sakharuk 1533: $currentstring .= ' \item ';
1.122 albertel 1534: }
1.238 albertel 1535: $Apache::londefdef::list_index++;
1536: }
1.122 albertel 1537: return $currentstring;
1538: }
1539:
1540: sub end_li {
1541: my ($target,$token) = @_;
1.277 ! foxr 1542: my $currentstring = &end_p; # In case there's a <p> in the <li>
1.122 albertel 1543: if ($target eq 'web') {
1.277 ! foxr 1544: $currentstring .= $token->[2];
1.122 albertel 1545: }
1546: return $currentstring;
1547: }
1548:
1.181 sakharuk 1549: #-- <u> tag (end tag required)
1.122 albertel 1550: sub start_u {
1551: my ($target,$token) = @_;
1552: my $currentstring = '';
1553: if ($target eq 'web') {
1554: $currentstring .= $token->[4];
1555: } elsif ($target eq 'tex') {
1556: &Apache::lonxml::startredirection();
1557: }
1558: return $currentstring;
1559: }
1560:
1561: sub end_u {
1562: my ($target,$token) = @_;
1563: my $currentstring = '';
1564: if ($target eq 'web') {
1565: $currentstring .= $token->[2];
1566: } elsif ($target eq 'tex') {
1567: $currentstring=&Apache::lonxml::endredirection();
1568: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1569: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1570: $currentstring=~s/(\S)\s*$/$1\}/;
1571: }
1572: return $currentstring;
1573: }
1574:
1.181 sakharuk 1575: #-- <ul> tag (end tag required)
1.122 albertel 1576: sub start_ul {
1.125 sakharuk 1577: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 ! foxr 1578: my $currentstring = &end_p; # Close off enclosing list.
1.122 albertel 1579: if ($target eq 'web') {
1.277 ! foxr 1580: $currentstring .= $token->[4];
1.122 albertel 1581: } elsif ($target eq 'tex') {
1.125 sakharuk 1582: my $TeXtype=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1.238 albertel 1583: $Apache::londefdef::list_index=0;
1.125 sakharuk 1584: if ($TeXtype eq 'disc') {
1.222 sakharuk 1585: $currentstring .= '\renewcommand{\labelitemi}{$\bullet$}'.
1586: '\renewcommand{\labelitemii}{$\bullet$}'.
1587: '\renewcommand{\labelitemiii}{$\bullet$}'.
1588: '\renewcommand{\labelitemiv}{$\bullet$}';
1.125 sakharuk 1589: } elsif ($TeXtype eq 'circle') {
1.222 sakharuk 1590: $currentstring .= '\renewcommand{\labelitemi}{$\circ$}'.
1591: '\renewcommand{\labelitemii}{$\circ$}'.
1592: '\renewcommand{\labelitemiii}{$\circ$}'.
1593: '\renewcommand{\labelitemiv}{$\circ$}';
1.125 sakharuk 1594: } elsif ($TeXtype eq 'square') {
1.222 sakharuk 1595: $currentstring .= '\renewcommand{\labelitemi}{$\diamond$}'.
1596: '\renewcommand{\labelitemii}{$\diamond$}'.
1597: '\renewcommand{\labelitemiii}{$\diamond$}'.
1598: '\renewcommand{\labelitemiv}{$\diamond$}';
1.125 sakharuk 1599: }
1.222 sakharuk 1600: $currentstring .= '\strut \begin{itemize}';
1.122 albertel 1601: }
1602: return $currentstring;
1603: }
1604:
1605: sub end_ul {
1606: my ($target,$token) = @_;
1607: my $currentstring = '';
1608: if ($target eq 'web') {
1609: $currentstring = $token->[2];
1610: } elsif ($target eq 'tex') {
1.222 sakharuk 1611: $currentstring = '\end{itemize} \renewcommand{\labelitemi}{$\bullet$}'.
1612: '\renewcommand{\labelitemii}{$\bullet$}'.
1613: '\renewcommand{\labelitemiii}{$\bullet$}'.
1614: '\renewcommand{\labelitemiv}{$\bullet$}\strut ';
1.122 albertel 1615: }
1616: return $currentstring;
1617: }
1618:
1.181 sakharuk 1619: #-- <menu> tag (end tag required)
1.122 albertel 1620: sub start_menu {
1621: my ($target,$token) = @_;
1622: my $currentstring = '';
1623: if ($target eq 'web') {
1624: $currentstring = $token->[4];
1625: } elsif ($target eq 'tex') {
1626: $currentstring = " \\begin{itemize} ";
1627: }
1628: return $currentstring;
1629: }
1630:
1631: sub end_menu {
1632: my ($target,$token) = @_;
1633: my $currentstring = '';
1634: if ($target eq 'web') {
1635: $currentstring = $token->[2];
1636: } elsif ($target eq 'tex') {
1637: $currentstring = " \\end{itemize}";
1638: }
1639: return $currentstring;
1640: }
1641:
1.181 sakharuk 1642: #-- <dir> tag (end tag required)
1.122 albertel 1643: sub start_dir {
1644: my ($target,$token) = @_;
1.277 ! foxr 1645: my $currentstring = &end_p; # In case there's a <p> prior to the list.
1.122 albertel 1646: if ($target eq 'web') {
1.277 ! foxr 1647: $currentstring .= $token->[4];
1.122 albertel 1648: } elsif ($target eq 'tex') {
1.277 ! foxr 1649: $currentstring .= " \\begin{itemize} ";
1.122 albertel 1650: }
1651: return $currentstring;
1652: }
1653:
1654: sub end_dir {
1655: my ($target,$token) = @_;
1656: my $currentstring = '';
1657: if ($target eq 'web') {
1658: $currentstring = $token->[2];
1659: } elsif ($target eq 'tex') {
1660: $currentstring = " \\end{itemize}";
1661: }
1662: return $currentstring;
1663: }
1664:
1.181 sakharuk 1665: #-- <ol> tag (end tag required)
1.122 albertel 1666: sub start_ol {
1.125 sakharuk 1667: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 ! foxr 1668: my $currentstring = &end_p; # In case there's a <p> prior to the list.
1.122 albertel 1669: if ($target eq 'web') {
1.277 ! foxr 1670: $currentstring .= $token->[4];
1.122 albertel 1671: } elsif ($target eq 'tex') {
1.238 albertel 1672: $Apache::londefdef::list_index=0;
1.125 sakharuk 1673: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1674: if ($type eq '1') {
1.222 sakharuk 1675: $currentstring .= '\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1676: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1677: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1678: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}';
1.125 sakharuk 1679: } elsif ($type eq 'A') {
1.222 sakharuk 1680: $currentstring .= '\renewcommand{\labelenumi}{\Alph{enumi}.}'.
1681: '\renewcommand{\labelenumii}{\Alph{enumii}.}'.
1682: '\renewcommand{\labelenumiii}{\Alph{enumiii}.}'.
1683: '\renewcommand{\labelenumiv}{\Alph{enumiv}.}';
1.125 sakharuk 1684: } elsif ($type eq 'a') {
1.222 sakharuk 1685: $currentstring .= '\renewcommand{\labelenumi}{\alph{enumi}.}'.
1686: '\renewcommand{\labelenumii}{\alph{enumii}.}'.
1687: '\renewcommand{\labelenumiii}{\alph{enumiii}.}'.
1688: '\renewcommand{\labelenumiv}{\alph{enumiv}.}';
1.125 sakharuk 1689: } elsif ($type eq 'i') {
1.222 sakharuk 1690: $currentstring .= '\renewcommand{\labelenumi}{\roman{enumi}.}'.
1691: '\renewcommand{\labelenumii}{\roman{enumii}.}'.
1692: '\renewcommand{\labelenumiii}{\roman{enumiii}.}'.
1693: '\renewcommand{\labelenumiv}{\roman{enumiv}.}';
1.125 sakharuk 1694: } elsif ($type eq 'I') {
1.222 sakharuk 1695: $currentstring .= '\renewcommand{\labelenumi}{\Roman{enumi}.}'.
1696: '\renewcommand{\labelenumii}{\Roman{enumii}.}'.
1697: '\renewcommand{\labelenumiii}{\Roman{enumiii}.}'.
1698: '\renewcommand{\labelenumiv}{\Roman{enumiv}.}';
1.125 sakharuk 1699: }
1.222 sakharuk 1700: $currentstring .= '\strut \begin{enumerate}';
1.122 albertel 1701: }
1702: return $currentstring;
1703: }
1704:
1705: sub end_ol {
1706: my ($target,$token) = @_;
1707: my $currentstring = '';
1708: if ($target eq 'web') {
1709: $currentstring = $token->[2];
1710: } elsif ($target eq 'tex') {
1.222 sakharuk 1711: $currentstring = '\end{enumerate}\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1712: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1713: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1714: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}\strut ';
1.122 albertel 1715: }
1716: return $currentstring;
1717: }
1718:
1.181 sakharuk 1719: #-- <dl> tag (end tag required)
1.122 albertel 1720: sub start_dl {
1721: my ($target,$token) = @_;
1.277 ! foxr 1722: my $currentstring = &end_p; # In case there's a <p> unclosed prior to the list.
1.122 albertel 1723: if ($target eq 'web') {
1.277 ! foxr 1724: $currentstring .= $token->[4];
1.122 albertel 1725: } elsif ($target eq 'tex') {
1.277 ! foxr 1726: $currentstring .= '\begin{description}';
1.243 albertel 1727: $Apache::londefdef::DL++;
1728: push(@Apache::londefdef::description,[]);
1729: $Apache::londefdef::DD[$Apache::londefdef::DL]=0;
1730: $Apache::londefdef::DT[$Apache::londefdef::DL]=0;
1.244 albertel 1731: $Apache::londefdef::seenDT[$Apache::londefdef::DL]=0;
1.122 albertel 1732: }
1733: return $currentstring;
1734: }
1735:
1736: sub end_dl {
1.174 sakharuk 1737: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1738: my $currentstring = '';
1739: if ($target eq 'web') {
1740: $currentstring = $token->[2];
1741: } elsif ($target eq 'tex') {
1.243 albertel 1742: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1743: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
1744: foreach my $element (@{$Apache::londefdef::description[-1]}) {
1.174 sakharuk 1745: $currentstring.=' '.$element.' ';
1746: }
1.243 albertel 1747: pop(@Apache::londefdef::description);
1.174 sakharuk 1748: $currentstring.='\end{description}';
1.243 albertel 1749: delete($Apache::londefdef::DD[$Apache::londefdef::DL]);
1750: delete($Apache::londefdef::DT[$Apache::londefdef::DL]);
1.244 albertel 1751: delete($Apache::londefdef::seenDT[$Apache::londefdef::DL]);
1.243 albertel 1752: $Apache::londefdef::DL--;
1.122 albertel 1753: }
1754: return $currentstring;
1755: }
1756:
1.172 sakharuk 1757: #-- <dt> tag (end tag optional)
1.122 albertel 1758: sub start_dt {
1.172 sakharuk 1759: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1760: my $currentstring='';
1.122 albertel 1761: if ($target eq 'web') {
1762: $currentstring = $token->[4];
1763: } elsif ($target eq 'tex') {
1.243 albertel 1764: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1765: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
1.174 sakharuk 1766: &Apache::lonxml::startredirection();
1.243 albertel 1767: $Apache::londefdef::DT[-1]++;
1.244 albertel 1768: $Apache::londefdef::seenDT[-1]=1;
1.122 albertel 1769: }
1770: return $currentstring;
1771: }
1772:
1773: sub end_dt {
1.172 sakharuk 1774: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1775: my $currentstring = '';
1776: if ($target eq 'web') {
1777: $currentstring = $token->[2];
1778: } elsif ($target eq 'tex') {
1.243 albertel 1779: if ($Apache::londefdef::DT[-1]) {
1780: my $data=&item_cleanup();
1.244 albertel 1781: push(@{$Apache::londefdef::description[-1]},'\item['.$data.'] \strut \vskip 0mm');
1.243 albertel 1782: $Apache::londefdef::DT[-1]--;
1783: }
1.122 albertel 1784: }
1785: return $currentstring;
1786: }
1787:
1.173 sakharuk 1788: sub item_cleanup {
1.174 sakharuk 1789: my $item=&Apache::lonxml::endredirection();
1.173 sakharuk 1790: $item=~s/\\begin{center}//g;
1791: $item=~s/\\end{center}//g;
1792: return $item;
1793: }
1794:
1.181 sakharuk 1795: #-- <dd> tag (end tag optional)
1.122 albertel 1796: sub start_dd {
1.147 sakharuk 1797: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1798: my $currentstring = '';
1799: if ($target eq 'web') {
1800: $currentstring = $token->[4];
1.147 sakharuk 1801: } elsif ($target eq 'tex') {
1.243 albertel 1802: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1803: if ($Apache::londefdef::DD[-1]) { &end_dd(@_);}
1.244 albertel 1804: if (!$Apache::londefdef::seenDT[-1]) {
1805: push(@{$Apache::londefdef::description[-1]},'\item[\strut] \strut \vskip 0mm ');
1806: }
1.243 albertel 1807: push(@{$Apache::londefdef::description[-1]},'');
1808: $Apache::londefdef::description[-1]->[-1].=' \strut ';
1809: $Apache::londefdef::DD[-1]++;
1.174 sakharuk 1810: &Apache::lonxml::startredirection();
1.122 albertel 1811: }
1812: return $currentstring;
1813: }
1814:
1815: sub end_dd {
1.174 sakharuk 1816: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1817: my $currentstring = '';
1818: if ($target eq 'web') {
1819: $currentstring = $token->[2];
1.174 sakharuk 1820: } elsif ($target eq 'tex') {
1.243 albertel 1821: $Apache::londefdef::description[-1]->[-1].=
1822: &Apache::lonxml::endredirection().' \vskip 0mm ';
1823: $Apache::londefdef::DD[-1]--;
1.174 sakharuk 1824: }
1.122 albertel 1825: return $currentstring;
1826: }
1827:
1.181 sakharuk 1828: #-- <table> tag (end tag required)
1.277 ! foxr 1829: # <table> also ends any prior <p> that is not closed.
! 1830: # but, unless I allow <p>'s to nest, that's the
! 1831: # only way I could think of to allow <p> in
! 1832: # <tr> <th> bodies
! 1833: #
1.206 sakharuk 1834: #list of supported attributes: border,width,TeXwidth
1.91 sakharuk 1835: sub start_table {
1836: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 ! foxr 1837: my $textwidth = '';
! 1838: my $currentstring = &end_p;
1.91 sakharuk 1839: if ($target eq 'web') {
1.277 ! foxr 1840: $currentstring .= $token->[4];
1.91 sakharuk 1841: } elsif ($target eq 'tex') {
1842: my $aa = {};
1843: push @Apache::londefdef::table, $aa;
1844: $Apache::londefdef::table[-1]{'row_number'} = -1;
1.222 sakharuk 1845: #maximum table's width (default coincides with text line length)
1.206 sakharuk 1846: if ($#Apache::londefdef::table==0) {
1.267 albertel 1847: $textwidth=&recalc($env{'form.textwidth'}); #result is always in mm
1.206 sakharuk 1848: $textwidth=~/(\d+\.?\d*)/;
1849: $textwidth=0.95*$1; #accounts "internal" LaTeX space for table frame
1850: } else {
1851: if ($Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}]=~/\d/) {
1852: #the maximum width of nested table is determined by LATeX width of parent cell
1853: $textwidth=$Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}];
1854: } else {
1855: #try to use all space not used before (minus 5% for LaTeX table internal) - rather silly
1.228 sakharuk 1856: $textwidth=$Apache::londefdef::table[-2]{'width'};
1.206 sakharuk 1857: for (my $i=0;$i<$Apache::londefdef::table[-2]{'counter_columns'};$i++) {
1858: $textwidth=$textwidth-$Apache::londefdef::table[-2]{'TeXlen'}[0][$i];
1859: }
1860: }
1861: }
1.126 sakharuk 1862: my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1863: if (not defined $TeXwidth) {
1864: my $htmlwidth = &Apache::lonxml::get_param('width',$parstack,$safeeval,undef,1);
1865: if ($htmlwidth=~/%/) {
1.203 sakharuk 1866: $Apache::londefdef::table[-1]{'percent'}=1;
1.126 sakharuk 1867: $htmlwidth=~/(\d+)/;
1.203 sakharuk 1868: $Apache::londefdef::table[-1]{'width'}=$1*$textwidth/100;;
1.126 sakharuk 1869: } else {
1870: $Apache::londefdef::table[-1]{'width'}=$textwidth;
1871: }
1872: } elsif ($TeXwidth=~/%/) {
1.203 sakharuk 1873: $Apache::londefdef::table[-1]{'percent'}=1;
1.126 sakharuk 1874: $TeXwidth=~/(\d+)/;
1.206 sakharuk 1875: $Apache::londefdef::table[-1]{'width'}=$1*$textwidth/100;
1.126 sakharuk 1876: } else {
1.222 sakharuk 1877: $Apache::londefdef::table[-1]{'forcetablewidth'}=1;
1.206 sakharuk 1878: $Apache::londefdef::table[-1]{'width'}=$TeXwidth;
1.126 sakharuk 1879: }
1880: #table's border
1.206 sakharuk 1881: my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval);
1.208 sakharuk 1882: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
1.91 sakharuk 1883: unless (defined $border) { $border = 0; }
1884: if ($border) {
1885: $Apache::londefdef::table[-1]{'hinc'} = '\hline ';
1886: $Apache::londefdef::table[-1]{'vinc'} = '&';
1887: $Apache::londefdef::table[-1]{'vvinc'} = '|';
1888: } else {
1889: $Apache::londefdef::table[-1]{'hinc'} = '';
1890: $Apache::londefdef::table[-1]{'vinc'} = '&';
1891: $Apache::londefdef::table[-1]{'vvinc'} = '';
1892: }
1.206 sakharuk 1893: if ($#Apache::londefdef::table==0) {
1.218 sakharuk 1894: $Apache::londefdef::table[-1]{'output'}='\strut\newline\strut\setlength{\tabcolsep}{1 mm}';
1.206 sakharuk 1895: }
1896: $Apache::londefdef::table[-1]{'output'}.=' \noindent \begin{tabular} ';
1897: $Apache::londefdef::table[-1]{'TeXlen'}=[];
1898: $Apache::londefdef::table[-1]{'objectlen'}=[];
1.229 sakharuk 1899: $Apache::londefdef::table[-1]{'objectsignal'}=[];
1.206 sakharuk 1900: $Apache::londefdef::table[-1]{'maxlen'}=[];
1901: $Apache::londefdef::table[-1]{'minlen'}=[];
1902: $Apache::londefdef::table[-1]{'content'}=[];
1903: $Apache::londefdef::table[-1]{'align'}=[];
1.277 ! foxr 1904: $currentstring.='\keephidden{NEW TABLE ENTRY}';
1.206 sakharuk 1905: }
1.91 sakharuk 1906: return $currentstring;
1907: }
1.122 albertel 1908:
1909: sub end_table {
1910: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1911: my $currentstring = '';
1912: if ($target eq 'web') {
1913: $currentstring = $token->[2];
1914: } elsif ($target eq 'tex') {
1915: my $inmemory = '';
1916: my $output = '';
1.206 sakharuk 1917: my $WARNING='';
1918: #width of columns from TeXwidth attributes
1919: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1920: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
1921: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]<$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn]) {
1922: $Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]=$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn];
1923: }
1924: }
1925: }
1926: #free space and number of empty columns
1927: my ($available_space,$empty_columns)=($Apache::londefdef::table[-1]{'width'},0);
1.228 sakharuk 1928: if ($#Apache::londefdef::table ne 0) {$available_space=0.9*$available_space;}
1.206 sakharuk 1929: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
1930: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]==0) {
1931: $empty_columns++;
1932: } else {
1933: $available_space=$available_space-$Apache::londefdef::table[-1]{'TeXlen'}[0][$jn];
1934: }
1935: }
1936: #boundaries for contents columns
1937: my @min_len=();#columns can not be narrower
1938: my @max_len=();#maximum length of column
1939: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
1940: my ($localmin,$localmax)=(0,0);
1941: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1942: if ($localmin<$Apache::londefdef::table[-1]{'minlen'}[$in][$jn]) {
1943: $localmin=$Apache::londefdef::table[-1]{'minlen'}[$in][$jn];
1944: }
1945: if ($localmax<$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn]) {
1946: $localmax=$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn];
1947: }
1948: }
1949: push @min_len, $localmin;
1950: push @max_len, $localmax;
1.122 albertel 1951: }
1.206 sakharuk 1952: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
1953: my $localmin=0,;
1954: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1955: if ($localmin<$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn]) {
1956: $localmin=$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn];
1957: }
1958: }
1.229 sakharuk 1959: if ($max_len[$jn]<$localmin) {
1960: $max_len[$jn]=$localmin;
1961: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
1962: }#object size is bigger
1963: if ($min_len[$jn]<$localmin) {
1964: $min_len[$jn]=$localmin;
1965: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
1966: }#object size is bigger
1.206 sakharuk 1967: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]!=0) {
1968: $min_len[$jn]=0;
1969: $max_len[$jn]=0;
1970: }
1971: }
1972: #final adjustment of column width
1973: my @fwidth=@{$Apache::londefdef::table[-1]{'TeXlen'}[0]};#final width array
1974: my @adjust=();
1975: #step 1. adjustment by maximum value
1976: my $space_neeeded=0;
1977: for (my $jn=0;$jn<=$#max_len;$jn++) {
1978: $space_neeeded=$space_neeeded+$max_len[$jn];
1979: }
1980: if ($space_neeeded<=$available_space) {
1981: for (my $jn=0;$jn<=$#max_len;$jn++) {
1982: if ($fwidth[$jn]==0) {
1983: $fwidth[$jn]=$max_len[$jn];
1.53 sakharuk 1984: }
1.51 sakharuk 1985: }
1.206 sakharuk 1986: } else {
1987: #step 2. adjustment by minimum value (estimation)
1988: $space_neeeded=0;
1989: for (my $jn=0;$jn<=$#min_len;$jn++) {
1990: $space_neeeded+=$min_len[$jn];
1991: }
1992: if ($space_neeeded>$available_space) {
1993: $WARNING=' \textbf{NOT ENOUGH SPACE FOR TABLE} ';
1994: for (my $jn=0;$jn<=$#max_len;$jn++) {
1995: if ($fwidth[$jn]==0) {
1996: $fwidth[$jn]=$min_len[$jn];
1997: }
1998: }
1.229 sakharuk 1999: #check if we have objects which can be scaled
2000: my $how_many_to_scale=0;
2001: my @to_scale=();
2002: for (my $jn=0;$jn<=$#max_len;$jn++) {
2003: if ($Apache::londefdef::table[-1]{'objectsignal'}[$jn] eq '1') {
2004: $how_many_to_scale++;
2005: push @to_scale, $jn;
2006: }
2007: }
2008: if ($how_many_to_scale>0) {
2009: my $space_to_adjust=($space_neeeded-$available_space)/$how_many_to_scale;
2010: foreach my $jn (@to_scale) {
2011: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2012: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/;
2013: if ($1 ne '') {
2014: my $current_length=&recalc($1);
2015: $current_length=~/(\d+\.?\d*)/;
2016: $current_length=$current_length-$space_to_adjust;
2017: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/width=$current_length mm/;
2018: }
2019: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/\[(\d+\.?\d*)\s*mm\]/;
2020: if ($1 ne '') {
2021: my $current_length=$1;
2022: $current_length=$current_length-$space_to_adjust;
2023: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/\[(\d+\.?\d*)\s*mm\]/\[$current_length mm\]/;
2024: }
2025: }
2026: $fwidth[$jn]=$fwidth[$jn]-$space_to_adjust;
2027: }
2028: }
1.206 sakharuk 2029: } else {
2030: #step 3. adjustment over minimal + corrections
2031: my $enlarge_coef=$available_space/$space_neeeded;
2032: my $acsessive=0;
2033: for (my $jn=0;$jn<=$#min_len;$jn++) {
2034: $adjust[$jn]=$min_len[$jn]*$enlarge_coef;
2035: if ($adjust[$jn]>$max_len[$jn]) {
2036: $fwidth[$jn]=$max_len[$jn];
2037: $acsessive=$acsessive+$adjust[$jn]-$max_len[$jn];
2038: $adjust[$jn]=0;
2039: }
2040: }
2041: if ($acsessive>0) {
2042: #we have an excess of space and can redistribute it
2043: my $notempty_columns=0;
2044: for (my $jn=0;$jn<=$#min_len;$jn++) {
2045: if ($adjust[$jn]!=0) {
2046: $notempty_columns++;
2047: }
2048: }
2049: my $per_column=$acsessive/$notempty_columns;
2050: for (my $jn=0;$jn<=$#min_len;$jn++) {
2051: if ($adjust[$jn]!=0) {
2052: $adjust[$jn]+=$per_column;
2053: $fwidth[$jn]=$adjust[$jn];
2054: }
1.223 sakharuk 2055: }
2056: } else {
2057: for (my $jn=0;$jn<=$#min_len;$jn++) {
2058: $fwidth[$jn]=$adjust[$jn];
1.206 sakharuk 2059: }
2060: }
1.203 sakharuk 2061: }
2062: }
1.222 sakharuk 2063: #use all available width if it is defined in % or as TeXwidth
2064: if (($Apache::londefdef::table[-1]{'percent'}==1) || ($Apache::londefdef::table[-1]{'forcetablewidth'}==1)) {
1.203 sakharuk 2065: my $current=0;
1.206 sakharuk 2066: for (my $i=0;$i<=$#fwidth;$i++) {
2067: $current+=$fwidth[$i];
1.203 sakharuk 2068: }
2069: my $coef=$Apache::londefdef::table[-1]{'width'}/$current;
1.206 sakharuk 2070: for (my $i=0;$i<=$#fwidth;$i++) {
2071: $fwidth[$i]*=$coef;
2072: }
2073: }
2074: #removing of empty columns if allowed
1.208 sakharuk 2075: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
1.206 sakharuk 2076: if ($permission eq 'yes') {
2077: my @cleaned_table=();
2078: my @cleaned_header=();
2079: my $colind=0;
2080: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2081: if ($fwidth[$jn]!=0) {
2082: #we need to copy column
2083: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2084: $cleaned_table[$in][$colind]=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
2085: $cleaned_header[$colind]=$fwidth[$jn];
2086: }
2087: $colind++;
2088: }
1.122 albertel 2089: }
1.206 sakharuk 2090: $Apache::londefdef::table[-1]{'content'}=\@cleaned_table;
2091: @fwidth=@cleaned_header;
1.122 albertel 2092: }
1.206 sakharuk 2093: #construct header of the table
2094: my $header_of_table = '{'.$Apache::londefdef::table[-1]{'vvinc'};
2095: for (my $in=0;$in<=$#fwidth;$in++) {
2096: $header_of_table.='p{'.$fwidth[$in].' mm}'.$Apache::londefdef::table[-1]{'vvinc'};
2097: }
2098: $header_of_table .= '}';
1.126 sakharuk 2099: #fill the table
2100: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1.206 sakharuk 2101: for (my $jn=0;$jn<=$#fwidth;$jn++) {
2102: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
1.228 sakharuk 2103: $output.='\vspace*{-6 mm}\begin{center}';
1.206 sakharuk 2104: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
2105: $output.=' \hfill \llap{'
2106: }
2107: $output.=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
2108: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
1.228 sakharuk 2109: $output.='\end{center}\vspace*{-6 mm}';
1.206 sakharuk 2110: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
2111: $output.='} ';
2112: }
2113: if ($jn!=$#fwidth) {$output.=' '.$Apache::londefdef::table[-1]{'vinc'};}
2114: }
2115: $output.=' \\\\ '.$Apache::londefdef::table[-1]{'hinc'}.' ';
1.122 albertel 2116: }
1.218 sakharuk 2117: $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut\newline\strut ';
1.127 sakharuk 2118: if ($#Apache::londefdef::table > 0) {
2119: my $inmemory = $Apache::londefdef::table[-1]{'output'};
2120: pop @Apache::londefdef::table;
1.129 sakharuk 2121: push @{$Apache::londefdef::table[-1]{'include'}}, $inmemory;
1.127 sakharuk 2122: } else {
2123: $currentstring .= $Apache::londefdef::table[-1]{'output'};
2124: pop @Apache::londefdef::table;
1.143 sakharuk 2125: undef @Apache::londefdef::table;
1.127 sakharuk 2126: }
1.122 albertel 2127: }
2128: return $currentstring;
2129: }
2130:
1.166 sakharuk 2131: #-- <tr> tag (end tag optional)
1.122 albertel 2132: sub start_tr {
2133: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2134: my $currentstring = '';
2135: if ($target eq 'web') {
2136: $currentstring = $token->[4];
2137: } elsif ($target eq 'tex') {
2138: $Apache::londefdef::table[-1]{'row_number'}++;
1.206 sakharuk 2139: my $alignchar=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.122 albertel 2140: if ($alignchar ne '') {
1.206 sakharuk 2141: push @ {$Apache::londefdef::table[-1]{'rows'} },substr($alignchar,0,1);
1.122 albertel 2142: } else {
2143: push @ {$Apache::londefdef::table[-1]{'rows'} }, 'l';
2144: }
2145: push ( @{ $Apache::londefdef::table[-1]{'rowdata'} }, $Apache::londefdef::table[-1]{'hinc'});
2146: $Apache::londefdef::table[-1]{'counter_columns'} = -1;
1.206 sakharuk 2147: push @ {$Apache::londefdef::table[-1]{'TeXlen'}}, [];
2148: push @ {$Apache::londefdef::table[-1]{'objectlen'}}, [];
2149: push @ {$Apache::londefdef::table[-1]{'minlen'}}, [];
2150: push @ {$Apache::londefdef::table[-1]{'maxlen'}}, [];
2151: push @ {$Apache::londefdef::table[-1]{'content'}}, [];
1.122 albertel 2152: }
2153: return $currentstring;
2154: }
2155:
2156: sub end_tr {
1.160 sakharuk 2157: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 ! foxr 2158: my $currentstring = &end_p; # Close any pending <p> in the row.
1.122 albertel 2159: if ($target eq 'web') {
1.277 ! foxr 2160: $currentstring .= $token->[2];
1.122 albertel 2161: } elsif ($target eq 'tex') {
1.160 sakharuk 2162: if ($Apache::londefdef::TD_redirection) {
2163: &end_td_tex($parstack,$parser,$safeeval);
2164: }
1.122 albertel 2165: }
2166: return $currentstring;
2167: }
2168:
1.166 sakharuk 2169: #-- <td> tag (end tag optional)
1.122 albertel 2170: sub start_td {
2171: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2172: my $currentstring = '';
2173: if ($target eq 'web') {
2174: $currentstring = $token->[4];
2175: } elsif ($target eq 'tex') {
1.160 sakharuk 2176: $Apache::londefdef::TD_redirection = 1;
1.159 sakharuk 2177: &tag_check('tr','td',$tagstack,$parstack,$parser,$safeeval);
1.122 albertel 2178: }
2179: return $currentstring;
2180: }
1.159 sakharuk 2181:
2182: sub tag_check {
2183: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
1.160 sakharuk 2184: my @ar=@$parstack;
2185: for (my $i=$#ar-1;$i>=0;$i--) {
2186: if (lc($$tagstack[$i]) eq $good_tag) {
2187: &start_td_tex($parstack,$parser,$safeeval);
2188: last;
2189: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2190: splice @ar, $i+1;
2191: &end_td_tex(\@ar,$parser,$safeeval);
2192: &start_td_tex($parstack,$parser,$safeeval);
2193: last;
1.159 sakharuk 2194: }
1.160 sakharuk 2195: }
1.159 sakharuk 2196: return '';
2197: }
2198:
2199: sub start_td_tex {
2200: my ($parstack,$parser,$safeeval) = @_;
1.206 sakharuk 2201: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2202: if ($alignchar eq '') {
2203: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
1.159 sakharuk 2204: }
1.206 sakharuk 2205: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
1.159 sakharuk 2206: $Apache::londefdef::table[-1]{'counter_columns'}++;
1.206 sakharuk 2207: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2208: if (defined $TeXwidth) {
2209: my $current_length=&recalc($TeXwidth);
2210: $current_length=~/(\d+\.?\d*)/;
2211: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2212: }
1.159 sakharuk 2213: &Apache::lonxml::startredirection();
2214: return '';
2215: }
2216:
2217: sub end_td_tex {
2218: my ($parstack,$parser,$safeeval) = @_;
2219: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2220: my $data=&Apache::lonxml::endredirection();
2221: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2222: if (defined $TeXwidth) {
1.206 sakharuk 2223: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2224: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2225: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
1.159 sakharuk 2226: } else {
1.206 sakharuk 2227: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2228: my $garbage_data=$data;
2229: my $fwidth=0;
2230: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2231: my $current_length=&recalc($1);
2232: $current_length=~/(\d+\.?\d*)/;
2233: if ($fwidth<$1) {$fwidth=$1;}
2234: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2235: }
2236: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2237: my $current_length=$1;
2238: if ($fwidth<$current_length) {$fwidth=$current_length;}
2239: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2240: }
2241: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2242: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2243: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2244: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
1.231 sakharuk 2245: } elsif ($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)*/) {
2246: my $garbage_data=$data;
2247: my $fwidth=0;
2248: while ($garbage_data=~/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)\s*\}/) {
2249: my $current_length=&recalc($1);
2250: $current_length=~/(\d+\.?\d*)/;
2251: if ($fwidth<$1) {$fwidth=$1;}
2252: $garbage_data=~s/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2253: }
2254: while ($garbage_data=~/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2255: my $current_length=&recalc($1);
2256: $current_length=~/(\d+\.?\d*)/;
2257: if ($fwidth<$1) {$fwidth=$1;}
2258: $garbage_data=~s/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2259: }
2260: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2261: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2262: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2263: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2264: $data=~s/\\\\\s*$//;
1.159 sakharuk 2265: } else {
1.166 sakharuk 2266: $data=~s/^\s+(\S.*)/$1/;
1.159 sakharuk 2267: $data=~s/(.*\S)\s+$/$1/;
1.166 sakharuk 2268: $data=~s/(\s)+/$1/;
1.206 sakharuk 2269: my ($current_length,$min_length)=(0,0);
1.166 sakharuk 2270: if ($data=~/\\vskip/) {
2271: my $newdata=$data;
2272: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2273: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2274: foreach my $elementdata (@newdata) {
1.206 sakharuk 2275: my $lengthnewdata=2.5*&LATEX_length($elementdata);
1.166 sakharuk 2276: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
1.206 sakharuk 2277: my @words=split(/ /,$elementdata);
2278: foreach my $word (@words) {
2279: my $lengthword=2.5*&LATEX_length($word);
2280: if ($min_length<$lengthword) {$min_length=$lengthword;}
2281: }
1.166 sakharuk 2282: }
2283: } else {
1.206 sakharuk 2284: $current_length=2.5*&LATEX_length($data);
2285: my @words=split(/ /,$data);
2286: foreach my $word (@words) {
1.228 sakharuk 2287: my $lengthword=2*&LATEX_length($word);
1.206 sakharuk 2288: if ($min_length<$lengthword) {$min_length=$lengthword;}
2289: }
1.166 sakharuk 2290: }
1.206 sakharuk 2291: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2292: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2293: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2294: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
1.159 sakharuk 2295: }
2296: }
2297: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
2298: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2299: }
1.206 sakharuk 2300: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
1.159 sakharuk 2301: return'';
2302: }
2303:
1.122 albertel 2304: sub end_td {
1.126 sakharuk 2305: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 2306: my $currentstring = '';
2307: if ($target eq 'web') {
2308: $currentstring = $token->[2];
2309: } elsif ($target eq 'tex') {
1.160 sakharuk 2310: $Apache::londefdef::TD_redirection =0;
1.159 sakharuk 2311: &end_td_tex($parstack,$parser,$safeeval);
1.122 albertel 2312: }
2313: return $currentstring;
2314: }
2315:
1.166 sakharuk 2316: #-- <th> tag (end tag optional)
1.122 albertel 2317: sub start_th {
2318: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2319: my $currentstring = '';
2320: if ($target eq 'web') {
2321: $currentstring = $token->[4];
2322: } elsif ($target eq 'tex') {
1.230 sakharuk 2323: $Apache::londefdef::TD_redirection = 1;
2324: &tagg_check('tr','th',$tagstack,$parstack,$parser,$safeeval);
1.122 albertel 2325: }
2326: return $currentstring;
1.130 sakharuk 2327: }
1.230 sakharuk 2328:
2329: sub tagg_check {
2330: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
2331: my @ar=@$parstack;
2332: for (my $i=$#ar-1;$i>=0;$i--) {
2333: if (lc($$tagstack[$i]) eq $good_tag) {
2334: &start_th_tex($parstack,$parser,$safeeval);
2335: last;
2336: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2337: splice @ar, $i+1;
2338: &end_th_tex(\@ar,$parser,$safeeval);
2339: &start_th_tex($parstack,$parser,$safeeval);
2340: last;
2341: }
2342: }
2343: return '';
2344: }
2345:
2346: sub start_th_tex {
2347: my ($parstack,$parser,$safeeval) = @_;
2348: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2349: if ($alignchar eq '') {
2350: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
2351: }
2352: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
2353: $Apache::londefdef::table[-1]{'counter_columns'}++;
2354: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2355: if (defined $TeXwidth) {
2356: my $current_length=&recalc($TeXwidth);
2357: $current_length=~/(\d+\.?\d*)/;
2358: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2359: }
2360: &Apache::lonxml::startredirection();
2361: return '';
2362: }
2363:
2364: sub end_th_tex {
2365: my ($parstack,$parser,$safeeval) = @_;
2366: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2367: my $data=&Apache::lonxml::endredirection();
2368: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2369: if (defined $TeXwidth) {
2370: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2371: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2372: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2373: } else {
2374: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2375: my $garbage_data=$data;
2376: my $fwidth=0;
2377: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2378: my $current_length=&recalc($1);
2379: $current_length=~/(\d+\.?\d*)/;
2380: if ($fwidth<$1) {$fwidth=$1;}
2381: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2382: }
2383: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2384: my $current_length=$1;
2385: if ($fwidth<$current_length) {$fwidth=$current_length;}
2386: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2387: }
2388: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2389: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2390: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2391: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2392: } else {
2393: $data=~s/^\s+(\S.*)/$1/;
2394: $data=~s/(.*\S)\s+$/$1/;
2395: $data=~s/(\s)+/$1/;
2396: my ($current_length,$min_length)=(0,0);
2397: if ($data=~/\\vskip/) {
2398: my $newdata=$data;
2399: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2400: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2401: foreach my $elementdata (@newdata) {
2402: my $lengthnewdata=2.5*&LATEX_length($elementdata);
2403: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
2404: my @words=split(/ /,$elementdata);
2405: foreach my $word (@words) {
2406: my $lengthword=2.5*&LATEX_length($word);
2407: if ($min_length<$lengthword) {$min_length=$lengthword;}
2408: }
2409: }
2410: } else {
2411: $current_length=2.5*&LATEX_length($data);
2412: my @words=split(/ /,$data);
2413: foreach my $word (@words) {
2414: my $lengthword=2*&LATEX_length($word);
2415: if ($min_length<$lengthword) {$min_length=$lengthword;}
2416: }
2417: }
2418: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2419: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2420: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2421: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
2422: }
2423: }
2424: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
2425: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2426: }
2427: #make data bold
2428: $data='\textbf{'.$data.'}';
2429: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
2430: return'';
2431: }
2432:
1.122 albertel 2433: sub end_th {
1.130 sakharuk 2434: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 ! foxr 2435: my $currentstring = &end_p; # Close any open <p> in the row.
1.122 albertel 2436: if ($target eq 'web') {
1.277 ! foxr 2437: $currentstring .= $token->[2];
1.122 albertel 2438: } elsif ($target eq 'tex') {
1.230 sakharuk 2439: $Apache::londefdef::TD_redirection =0;
2440: &end_th_tex($parstack,$parser,$safeeval);
1.122 albertel 2441: }
2442: return $currentstring;
2443: }
1.230 sakharuk 2444:
1.181 sakharuk 2445: #-- <img> tag (end tag forbidden)
1.249 foxr 2446: #
2447: # Render the <IMG> tag.
2448: # <IMG> has the following attributes (in addition to the
2449: # standard HTML ones:
2450: # TeXwrap - Governs how the tex target will try to wrap text around
2451: # horizontally aligned images.
2452: # TeXwidth - The width of the image when rendered for print (mm).
2453: # TeXheight - The height of the image when rendered for print (mm)
2454: # (Note there seems to also be support for this as a % of page size)
2455: #
1.122 albertel 2456: sub start_img {
2457: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2458: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,
2459: undef,1);
1.189 albertel 2460: if (not $src and ($target eq 'web' or $target eq 'tex')) {
2461: my $inside = &Apache::lonxml::get_all_text("/img",$parser);
2462: return '';
2463: }
1.122 albertel 2464: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$src;
2465: my $currentstring = '';
2466: my $scaling = .3;
1.249 foxr 2467:
2468: # Render unto browsers that which are the browser's...
2469:
1.122 albertel 2470: if ($target eq 'web') {
1.267 albertel 2471: if ($env{'browser.imagesuppress'} ne 'on') {
1.250 albertel 2472: $currentstring.=&Apache::lonenc::encrypt_ref($token,{'src'=>$src});
1.122 albertel 2473: } else {
2474: my $alttag= &Apache::lonxml::get_param
2475: ('alt',$parstack,$safeeval,undef,1);
2476: unless ($alttag) {
2477: $alttag=&Apache::lonmeta::alttag
2478: ($Apache::lonxml::pwd[-1],$src);
1.51 sakharuk 2479: }
1.158 sakharuk 2480: $currentstring.='[IMAGE: '.$alttag.']';
1.1 sakharuk 2481: }
1.249 foxr 2482:
2483: # and render unto TeX that which is LaTeX
2484:
1.122 albertel 2485: } elsif ($target eq 'tex') {
1.248 foxr 2486: #
2487: # The alignment will require some superstructure to be put around
2488: # the \includegraphics stuff. At present we can only partially
2489: # simulate the alignments offered by html.
2490: #
2491: #
2492: my $align = lc(&Apache::lonxml::get_param('align',
2493: $parstack,
2494: $safeeval,
2495: undef,1));
2496: if(!$align) {
2497: $align = "bottom"; # This is html's default so it's ours too.
2498: }
2499: #
2500: &Apache::lonxml::debug("Alignemnt = $align");
2501: # LaTeX's image/text wrapping is really bad since it wants to
2502: # make figures float.
2503: # The user has the optional parameter (applicable only to l/r
2504: # alignment to use the picins/parpic directive to get wrapped text
2505: # this is also imperfect.. that's why we give them a choice...
2506: # so they can't yell at us for our choice.
2507: #
2508: my $latex_rendering = &Apache::lonxml::get_param('TeXwrap',
2509: $parstack,
2510: $safeeval,
2511: undef,0);
2512: &Apache::lonxml::debug("LaTeX rendering = $latex_rendering");
2513: if(!$latex_rendering) {
2514: $latex_rendering = "parbox";
2515: }
1.261 foxr 2516: &Apache::lonxml::debug("LaTeX rendering = $latex_rendering image file: $src");
1.248 foxr 2517:
1.256 albertel 2518: #if original gif/jpg/png file exist do following:
1.266 albertel 2519: my $origsrc=$src;
1.256 albertel 2520: my ($path,$file) = &get_eps_image($src);
1.122 albertel 2521: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.261 foxr 2522: &Apache::lonxml::debug("path = $path file = $file src = $src");
1.192 sakharuk 2523: if (-e $src) {
1.261 foxr 2524: &Apache::lonxml::debug("$src exists");
1.256 albertel 2525: my ($height_param,$width_param)=
1.266 albertel 2526: &image_size($origsrc,0.3,$parstack,$safeeval);
1.262 foxr 2527: my $destpath = $path;
1.263 foxr 2528: $destpath =~ s/ /\_/g; # Spaces in path cause LaTex to vomit.
2529: my $destfile = $file;
2530: $destfile =~ s/ /\_/g;
1.266 albertel 2531: my $size;
2532: if ($width_param) { $size.='width='.$width_param.' mm,'; }
2533: if ($height_param) { $size.='height='.$height_param.' mm]'; }
2534: $size='['.$size;
2535: $size=~s/,$/]/;
1.262 foxr 2536: $currentstring .= '\graphicspath{{'.$destpath.'}}'
1.266 albertel 2537: .'\includegraphics'.$size.'{'.$destfile.'} ';
1.256 albertel 2538:
1.248 foxr 2539: # If there's an alignment specification we need to honor it here.
2540: # For the horizontal alignments, we will also honor the
2541: # value of the latex specfication. The default is parbox,
2542: # and that's used for illegal values too.
2543: #
2544: # Even though we set a default alignment value, the user
2545: # could have given us an illegal value. In that case we
2546: # just use the default alignment of bottom..
2547: if ($align eq "top") {
2548: $currentstring = '\raisebox{-'.$height_param.'mm}{'.$currentstring.'}';
2549: } elsif (($align eq "center") || ($align eq "middle")) { # Being kind
2550: my $offset = $height_param/2;
2551: $currentstring = '\raisebox{-'.$offset.'mm}{'.$currentstring.'}';
2552: } elsif ($align eq "left") {
2553: if ($latex_rendering eq "parpic") {
2554: $currentstring = '\parpic[l]{'.$currentstring.'}';
2555: } else { # parbox rendering
1.255 albertel 2556: $currentstring = "\\strut\\newline\n".
2557: '\parbox{'.$width_param.'mm}{'.$currentstring.'}';
1.248 foxr 2558: }
2559: } elsif ($align eq "right") {
2560: if ($latex_rendering eq "parpic") {
2561: $currentstring = '\parpic[r]{'.$currentstring.'}';
2562: } else { # parbox rendering.
2563: $currentstring = '\parbox{'.$width_param.'mm}{\begin{flushright}'
2564: .$currentstring.'\end{flushright}} \newline'."\n";
2565: }
2566: } else { # Bottom is also default.
2567: # $currentstring = '\raisebox{'.$height_param.'mm}{'.$currentstring.'}';
2568: }
1.122 albertel 2569: } else {
1.261 foxr 2570: &Apache::lonxml::debug("$src does not exist");
1.122 albertel 2571: #original image file doesn't exist so check the alt attribute
2572: my $alt =
2573: &Apache::lonxml::get_param('alt',$parstack,$safeeval,undef,1);
2574: unless ($alt) {
2575: $alt=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
2576: }
2577:
1.256 albertel 2578: if ($alt) { $currentstring .= ' '.$alt.' '; }
1.59 sakharuk 2579: }
1.249 foxr 2580:
2581: # And here's where the semi-quote breaks down: allow the user
2582: # to edit the beast as well by rendering the problem for edit:
1.186 albertel 2583: } elsif ($target eq 'edit') {
2584: $currentstring .=&Apache::edit::tag_start($target,$token);
2585: $currentstring .=&Apache::edit::text_arg('Image Url:','src',$token,70).
2586: &Apache::edit::browse('src',undef,'alt').' '.
2587: &Apache::edit::search('src',undef,'alt').'<br />';
2588: $currentstring .=&Apache::edit::text_arg('Description:','alt',$token,70).'<br />';
2589: $currentstring .=&Apache::edit::text_arg('width (pixel):','width',$token,5);
2590: $currentstring .=&Apache::edit::text_arg('height (pixel):','height',$token,5).'<br />';
2591: $currentstring .=&Apache::edit::text_arg('TeXwidth (mm):','TeXwidth',$token,5);
2592: $currentstring .=&Apache::edit::text_arg('TeXheight (mm):','TeXheight',$token,5);
1.234 albertel 2593: $currentstring .=&Apache::edit::select_arg('Alignment:','align',
2594: ['','bottom','middle','top','left','right'],$token,5);
1.249 foxr 2595: $currentstring .=&Apache::edit::select_arg('TeXwrap:', 'TeXwrap',
2596: ['', 'parbox', 'parpic'], $token, 2);
1.186 albertel 2597: $currentstring .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1.249 foxr 2598: my $src= &Apache::lonxml::get_param('src',$parstack,$safeeval);
2599: my $alt= &Apache::lonxml::get_param('alt',$parstack,$safeeval);
2600: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
2601: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
2602:
2603:
1.186 albertel 2604: $currentstring .= '<img src="'.$src.'" alt="'.$alt.'" ';
2605: if ($width) { $currentstring.=' width="'.$width.'" '; }
2606: if ($height) { $currentstring.=' height="'.$height.'" '; }
2607: $currentstring .= ' />';
2608: } elsif ($target eq 'modified') {
1.210 albertel 2609: my ($osrc,$owidth,$oheight)=
2610: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2611: my $ctag=&Apache::edit::get_new_args($token,$parstack,
1.234 albertel 2612: $safeeval,'src','alt','align',
1.249 foxr 2613: 'TeXwidth','TeXheight', 'TeXwrap',
1.210 albertel 2614: 'width','height');
2615: my ($nsrc,$nwidth,$nheight)=
2616: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2617: my $loc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$nsrc);
2618: &image_replication($loc);
2619: my ($iwidth,$iheight);
2620: if (-e $loc) {
2621: my $image = Image::Magick->new;
2622: $image->Read($loc);
2623: ($iwidth, $iheight) = ($image->Get('width'),
2624: $image->Get('height'));
2625: }
2626: if ($osrc ne $nsrc || (!$nwidth && !$nheight)) {
2627: # changed image or no size specified,
2628: # if they didn't explicitly change the
2629: # width or height use the ones from the image
2630: if ($iwidth && $iheight) {
2631: if ($owidth == $nwidth || (!$nwidth && !$nheight)) {
2632: $token->[2]{'width'} = $iwidth;$ctag=1;
2633: }
2634: if ($oheight == $nheight || (!$nwidth && !$nheight)) {
2635: $token->[2]{'height'}=$iheight;$ctag=1;
1.186 albertel 2636: }
2637: }
2638: }
1.210 albertel 2639: my ($cwidth,$cheight)=($token->[2]{'width'},$token->[2]{'height'});
2640: # if we don't have a width or height
2641: if ($iwidth && $cwidth && !$cheight) {
2642: $token->[2]{'height'}=int(($cwidth/$iwidth)*$iheight);$ctag=1;
2643: }
2644: if ($iheight && $cheight && !$cwidth) {
2645: $token->[2]{'width'}=int(($cheight/$iheight)*$iwidth);$ctag=1;
2646: }
2647: if ($ctag) {$currentstring=&Apache::edit::rebuild_tag($token);}
1.122 albertel 2648: }
1.261 foxr 2649:
1.122 albertel 2650: return $currentstring;
2651: }
2652:
2653: sub end_img {
2654: my ($target,$token) = @_;
2655: my $currentstring = '';
2656: if ($target eq 'web') {
2657: $currentstring = $token->[2];
2658: } elsif ($target eq 'tex') {
2659: $currentstring = '';
2660: }
2661: return $currentstring;
2662: }
2663:
1.181 sakharuk 2664: #-- <applet> tag (end tag required)
1.122 albertel 2665: sub start_applet {
2666: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2667:
2668: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,undef,1);
2669: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$code;
2670:
2671: my $archive=&Apache::lonxml::get_param('archive',$parstack,$safeeval,
2672: undef,1);
2673: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$archive;
2674:
2675: my $currentstring = '';
2676: if ($target eq 'web') {
1.267 albertel 2677: if ($env{'browser.appletsuppress'} ne 'on') {
1.250 albertel 2678: $currentstring = &Apache::lonenc::encrypt_ref($token,
2679: {'code'=>$code,
2680: 'archive'=>$archive}
2681: );
1.122 albertel 2682: } else {
2683: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
2684: $safeeval,undef,1);
2685: unless ($alttag) {
2686: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2687: $code);
1.44 sakharuk 2688: }
1.122 albertel 2689: $currentstring='[APPLET: '.$alttag.']';
1.1 sakharuk 2690: }
1.122 albertel 2691: } elsif ($target eq 'tex') {
1.177 albertel 2692: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
2693: $safeeval,undef,1);
2694: unless ($alttag) {
2695: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,
2696: undef,1);
2697: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2698: $code);
1.175 sakharuk 2699: }
1.177 albertel 2700: $currentstring.='\begin{center} \fbox{Java Applet: '.$alttag.
2701: '.}\end{center}';
1.122 albertel 2702: }
2703: return $currentstring;
2704: }
2705:
2706: sub end_applet {
2707: my ($target,$token) = @_;
2708: my $currentstring = '';
2709: if ($target eq 'web') {
2710: $currentstring = $token->[2];
2711: } elsif ($target eq 'tex') {
2712: }
2713: return $currentstring;
2714: }
2715:
1.181 sakharuk 2716: #-- <embed> tag (end tag optional/required)
1.122 albertel 2717: sub start_embed {
2718: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2719: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2720: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$src;
2721: my $currentstring = '';
2722: if ($target eq 'web') {
1.267 albertel 2723: if ($env{'browser.embedsuppress'} ne 'on') {
1.250 albertel 2724: $currentstring=&Apache::lonenc::encrypt_ref($token,{'src'=>$src});
1.122 albertel 2725: } else {
2726: my $alttag=&Apache::lonxml::get_param
2727: ('alt',$parstack,$safeeval,undef,1);
2728: unless ($alttag) {
2729: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
1.42 albertel 2730: }
1.122 albertel 2731: $currentstring='[EMBED: '.$alttag.']';
1.10 www 2732: }
1.122 albertel 2733: } elsif ($target eq 'tex') {
2734: }
2735: return $currentstring;
2736: }
2737:
2738: sub end_embed {
2739: my ($target,$token) = @_;
2740: my $currentstring = '';
2741: if ($target eq 'web') {
2742: $currentstring = $token->[2];
1.175 sakharuk 2743: } elsif ($target eq 'tex') {
1.122 albertel 2744: }
2745: return $currentstring;
2746: }
2747:
1.181 sakharuk 2748: #-- <param> tag (end tag forbidden)
1.122 albertel 2749: sub start_param {
2750: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2751: if (&Apache::lonxml::get_param
2752: ('name',$parstack,$safeeval,undef,1)=~/^cabbase$/i) {
2753: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
2754: &Apache::lonxml::get_param('value',$parstack,$safeeval,undef,1);
2755: }
2756: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
2757: &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2758: my $currentstring = '';
2759: if ($target eq 'web') {
1.250 albertel 2760: my %toconvert;
2761: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2762: if ($src) { $toconvert{'src'}= $src; }
2763: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval,
2764: undef,1);
1.251 albertel 2765: if ($name=~/^cabbase$/i) {
2766: $toconvert{'value'}=&Apache::lonxml::get_param('value',$parstack,
2767: $safeeval,undef,1);
2768: }
1.250 albertel 2769: $currentstring = &Apache::lonenc::encrypt_ref($token,\%toconvert);
1.122 albertel 2770: } elsif ($target eq 'tex') {
2771: }
2772: return $currentstring;
2773: }
2774:
2775: sub end_param {
2776: my ($target,$token) = @_;
2777: my $currentstring = '';
2778: if ($target eq 'web') {
2779: $currentstring = $token->[2];
2780: } elsif ($target eq 'tex') {
2781: }
2782: return $currentstring;
2783: }
2784:
2785: #-- <allow> tag
2786: sub start_allow {
2787: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2788: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2789: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.138 www 2790: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
2791: &Apache::lonnet::clutter($src);
1.241 albertel 2792: if ($target eq 'tex') { &image_replication($src); }
1.122 albertel 2793: my $result;
2794: if ($target eq 'edit') {
2795: $result .=&Apache::edit::tag_start($target,$token);
2796: $result .=&Apache::edit::text_arg('File Spec:','src',$token,70);
2797: $result .=&Apache::edit::end_row();#.&Apache::edit::start_spanning_row();
2798: } elsif ($target eq 'modified') {
2799: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2800: $safeeval,'src');
2801: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2802: }
2803: return $result;
2804: }
2805:
2806: sub end_allow {
2807: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2808: if ( $target eq 'edit') { return (&Apache::edit::end_table()); }
2809: return '';
2810: }
1.119 www 2811:
1.181 sakharuk 2812: #-- Frames (end tag required)
2813: #-- <frameset>
1.122 albertel 2814: sub start_frameset {
2815: my ($target,$token) = @_;
1.277 ! foxr 2816: my $currentstring = ''; # Close any pending para.
1.122 albertel 2817: if ($target eq 'web') {
1.180 albertel 2818: if (!$Apache::lonxml::registered &&
1.267 albertel 2819: $env{'request.state'} eq 'published') {
1.122 albertel 2820: $currentstring.='<head>'.
2821: &Apache::lonmenu::registerurl(undef,$target).'</head>';
1.10 www 2822: }
1.133 www 2823: my $onLoad='';
2824: foreach my $key (keys(%{$token->[2]})) {
2825: if ($key =~ /^onload$/i) {
2826: $onLoad.=$token->[2]->{$key}.';';
2827: delete($token->[2]->{$key});
2828: }
2829: }
2830: $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad;
2831: my $onUnload='';
2832: foreach my $key (keys(%{$token->[2]})) {
2833: if ($key =~ /^onunload$/i) {
2834: $onUnload.=$token->[2]->{$key}.';';
2835: delete($token->[2]->{$key});
2836: }
2837: }
2838: $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().
2839: ';'.$onUnload;
2840:
2841: $currentstring .= '<'.$token->[1];
2842: foreach (keys %{$token->[2]}) {
2843: $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
2844: }
2845: $currentstring.='>';
1.122 albertel 2846: }
2847: return $currentstring;
2848: }
2849:
2850: sub end_frameset {
2851: my ($target,$token) = @_;
2852: my $currentstring = '';
2853: if ($target eq 'web') {
2854: $currentstring = $token->[2];
2855: }
2856: return $currentstring;
2857: }
1.162 sakharuk 2858:
1.181 sakharuk 2859: #-- <xmp> (end tag required)
1.162 sakharuk 2860: sub start_xmp {
2861: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2862: my $currentstring = '';
2863: if ($target eq 'web') {
2864: $currentstring .= $token->[4];
2865: } elsif ($target eq 'tex') {
2866: $currentstring .= '\begin{verbatim}';
2867: }
2868: return $currentstring;
2869: }
2870:
2871: sub end_xmp {
2872: my ($target,$token) = @_;
2873: my $currentstring = '';
2874: if ($target eq 'web') {
2875: $currentstring .= $token->[2];
2876: } elsif ($target eq 'tex') {
2877: $currentstring .= '\end{verbatim}';
2878: }
2879: return $currentstring;
2880: }
2881:
1.181 sakharuk 2882: #-- <pre> (end tag required)
1.122 albertel 2883: sub start_pre {
1.126 sakharuk 2884: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 ! foxr 2885: my $currentstring = &end_p; # close off pending <p>
1.122 albertel 2886: if ($target eq 'web') {
2887: $currentstring .= $token->[4];
2888: } elsif ($target eq 'tex') {
1.136 sakharuk 2889: $currentstring .= '\begin{verbatim}';
1.122 albertel 2890: }
2891: return $currentstring;
2892: }
2893:
2894: sub end_pre {
2895: my ($target,$token) = @_;
2896: my $currentstring = '';
2897: if ($target eq 'web') {
2898: $currentstring .= $token->[2];
2899: } elsif ($target eq 'tex') {
1.136 sakharuk 2900: $currentstring .= '\end{verbatim}';
1.122 albertel 2901: }
2902: return $currentstring;
2903: }
2904:
2905: #-- <insert>
2906: sub start_insert {
2907: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2908: my $currentstring = '';
2909: if ($target eq 'web') {
2910: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
2911: $currentstring .= '<b>'.$display.'</b>';;
2912: }
2913: return $currentstring;
2914: }
2915:
2916: sub end_insert {
2917: my ($target,$token) = @_;
2918: my $currentstring = '';
2919: if ($target eq 'web') {
2920: $currentstring .= '';
2921: }
2922: return $currentstring;
2923: }
2924:
2925: #-- <externallink>
2926: sub start_externallink {
2927: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2928: my $currentstring = '';
2929: if ($target eq 'web') {
2930: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
2931: $currentstring .= '<b>'.$display.'</b>';;
2932: }
2933: return $currentstring;
2934: }
2935:
2936: sub end_externallink {
2937: my ($target,$token) = @_;
2938: my $currentstring = '';
2939: if ($target eq 'web') {
2940: $currentstring .= '';
2941: }
2942: return $currentstring;
2943: }
2944:
2945: #-- <blankspace heigth="">
2946: sub start_blankspace {
2947: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 ! foxr 2948: my $currentstring = &end_p; # closes off any unclosed <p>
1.122 albertel 2949: if ($target eq 'tex') {
2950: my $howmuch = &Apache::lonxml::get_param('heigth',$parstack,$safeeval,undef,1);
2951: $currentstring .= '\vskip '.$howmuch.' ';
2952: }
2953: return $currentstring;
2954: }
2955:
2956: sub end_blankspace {
2957: my ($target,$token) = @_;
2958: my $currentstring = '';
2959: if ($target eq 'tex') {
2960: $currentstring .= '';
2961: }
2962: return $currentstring;
2963: }
2964:
1.181 sakharuk 2965: #-- <abbr> tag (end tag required)
1.122 albertel 2966: sub start_abbr {
2967: my ($target,$token) = @_;
2968: my $currentstring = '';
2969: if ($target eq 'web') {
2970: $currentstring = $token->[4];
2971: }
2972: return $currentstring;
2973: }
2974:
2975: sub end_abbr {
2976: my ($target,$token) = @_;
2977: my $currentstring = '';
2978: if ($target eq 'web') {
2979: $currentstring = $token->[2];
2980: }
2981: return $currentstring;
2982: }
2983:
1.181 sakharuk 2984: #-- <acronym> tag (end tag required)
1.122 albertel 2985: sub start_acronym {
2986: my ($target,$token) = @_;
2987: my $currentstring = '';
2988: if ($target eq 'web') {
2989: $currentstring = $token->[4];
2990: }
2991: return $currentstring;
2992: }
2993:
2994: sub end_acronym {
2995: my ($target,$token) = @_;
2996: my $currentstring = '';
2997: if ($target eq 'web') {
2998: $currentstring = $token->[2];
2999: }
3000: return $currentstring;
3001: }
3002:
1.181 sakharuk 3003: #-- <area> tag (end tag forbidden)
1.122 albertel 3004: sub start_area {
3005: my ($target,$token) = @_;
3006: my $currentstring = '';
3007: if ($target eq 'web') {
3008: $currentstring = $token->[4];
3009: }
3010: return $currentstring;
3011: }
3012:
3013: sub end_area {
3014: my ($target,$token) = @_;
3015: my $currentstring = '';
3016: if ($target eq 'web') {
3017: $currentstring = $token->[2];
3018: }
3019: return $currentstring;
3020: }
3021:
1.181 sakharuk 3022: #-- <base> tag (end tag forbidden)
1.122 albertel 3023: sub start_base {
3024: my ($target,$token) = @_;
3025: my $currentstring = '';
3026: if ($target eq 'web') {
3027: $currentstring = $token->[4];
1.161 sakharuk 3028: }
1.122 albertel 3029: return $currentstring;
3030: }
3031:
3032: sub end_base {
3033: my ($target,$token) = @_;
3034: my $currentstring = '';
3035: if ($target eq 'web') {
3036: $currentstring = $token->[2];
3037: }
3038: return $currentstring;
3039: }
3040:
1.181 sakharuk 3041: #-- <bdo> tag (end tag required)
1.122 albertel 3042: sub start_bdo {
3043: my ($target,$token) = @_;
3044: my $currentstring = '';
3045: if ($target eq 'web') {
3046: $currentstring = $token->[4];
3047: }
3048: return $currentstring;
3049: }
3050:
3051: sub end_bdo {
3052: my ($target,$token) = @_;
3053: my $currentstring = '';
3054: if ($target eq 'web') {
3055: $currentstring = $token->[2];
3056: }
3057: return $currentstring;
3058: }
3059:
1.181 sakharuk 3060: #-- <bgsound> tag (end tag optional)
1.122 albertel 3061: sub start_bgsound {
3062: my ($target,$token) = @_;
3063: my $currentstring = '';
3064: if ($target eq 'web') {
3065: $currentstring = $token->[4];
3066: }
3067: return $currentstring;
3068: }
3069:
3070: sub end_bgsound {
3071: my ($target,$token) = @_;
3072: my $currentstring = '';
3073: if ($target eq 'web') {
3074: $currentstring = $token->[2];
3075: }
3076: return $currentstring;
3077: }
3078:
1.181 sakharuk 3079: #-- <blink> tag (end tag required)
1.122 albertel 3080: sub start_blink {
3081: my ($target,$token) = @_;
3082: my $currentstring = '';
3083: if ($target eq 'web') {
3084: $currentstring = $token->[4];
3085: }
3086: return $currentstring;
3087: }
3088:
3089: sub end_blink {
3090: my ($target,$token) = @_;
3091: my $currentstring = '';
3092: if ($target eq 'web') {
3093: $currentstring = $token->[2];
3094: }
3095: return $currentstring;
3096: }
3097:
1.181 sakharuk 3098: #-- <blockquote> tag (end tag required)
1.122 albertel 3099: sub start_blockquote {
3100: my ($target,$token) = @_;
1.277 ! foxr 3101: my $currentstring = &end_p; # Close any unclosed <p>
1.122 albertel 3102: if ($target eq 'web') {
1.277 ! foxr 3103: $currentstring .= $token->[4];
1.122 albertel 3104: }
3105: return $currentstring;
3106: }
3107:
3108: sub end_blockquote {
3109: my ($target,$token) = @_;
3110: my $currentstring = '';
3111: if ($target eq 'web') {
3112: $currentstring = $token->[2];
3113: }
3114: return $currentstring;
3115: }
3116:
1.181 sakharuk 3117: #-- <button> tag (end tag required)
1.122 albertel 3118: sub start_button {
3119: my ($target,$token) = @_;
3120: my $currentstring = '';
3121: if ($target eq 'web') {
3122: $currentstring = $token->[4];
3123: }
3124: return $currentstring;
3125: }
3126:
3127: sub end_button {
3128: my ($target,$token) = @_;
3129: my $currentstring = '';
3130: if ($target eq 'web') {
3131: $currentstring = $token->[2];
3132: }
3133: return $currentstring;
3134: }
3135:
1.181 sakharuk 3136: #-- <caption> tag (end tag required)
1.122 albertel 3137: sub start_caption {
3138: my ($target,$token) = @_;
3139: my $currentstring = '';
3140: if ($target eq 'web') {
3141: $currentstring = $token->[4];
3142: }
3143: return $currentstring;
3144: }
3145:
3146: sub end_caption {
3147: my ($target,$token) = @_;
3148: my $currentstring = '';
3149: if ($target eq 'web') {
3150: $currentstring = $token->[2];
3151: }
3152: return $currentstring;
3153: }
3154:
1.181 sakharuk 3155: #-- <col> tag (end tag forbdden)
1.122 albertel 3156: sub start_col {
3157: my ($target,$token) = @_;
3158: my $currentstring = '';
3159: if ($target eq 'web') {
3160: $currentstring = $token->[4];
3161: }
3162: return $currentstring;
3163: }
3164:
3165: sub end_col {
3166: my ($target,$token) = @_;
3167: my $currentstring = '';
3168: if ($target eq 'web') {
3169: $currentstring = $token->[2];
3170: }
3171: return $currentstring;
3172: }
3173:
1.181 sakharuk 3174: #-- <colgroup> tag (end tag optional)
1.122 albertel 3175: sub start_colgroup {
3176: my ($target,$token) = @_;
3177: my $currentstring = '';
3178: if ($target eq 'web') {
3179: $currentstring = $token->[4];
3180: }
3181: return $currentstring;
3182: }
3183:
3184: sub end_colgroup {
3185: my ($target,$token) = @_;
3186: my $currentstring = '';
3187: if ($target eq 'web') {
3188: $currentstring = $token->[2];
3189: }
3190: return $currentstring;
3191: }
3192:
1.181 sakharuk 3193: #-- <del> tag (end tag required)
1.122 albertel 3194: sub start_del {
3195: my ($target,$token) = @_;
3196: my $currentstring = '';
3197: if ($target eq 'web') {
3198: $currentstring = $token->[4];
3199: }
3200: return $currentstring;
3201: }
3202:
3203: sub end_del {
3204: my ($target,$token) = @_;
3205: my $currentstring = '';
3206: if ($target eq 'web') {
3207: $currentstring = $token->[2];
3208: }
3209: return $currentstring;
3210: }
3211:
1.181 sakharuk 3212: #-- <fieldset> tag (end tag required)
1.122 albertel 3213: sub start_fieldset {
3214: my ($target,$token) = @_;
3215: my $currentstring = '';
3216: if ($target eq 'web') {
3217: $currentstring = $token->[4];
3218: }
3219: return $currentstring;
3220: }
3221:
3222: sub end_fieldset {
3223: my ($target,$token) = @_;
3224: my $currentstring = '';
3225: if ($target eq 'web') {
3226: $currentstring = $token->[2];
3227: }
3228: return $currentstring;
3229: }
3230:
1.181 sakharuk 3231: #-- <frame> tag (end tag forbidden)
1.122 albertel 3232: sub start_frame {
3233: my ($target,$token) = @_;
3234: my $currentstring = '';
3235: if ($target eq 'web') {
3236: $currentstring = $token->[4];
3237: }
3238: return $currentstring;
3239: }
3240:
3241: sub end_frame {
3242: my ($target,$token) = @_;
3243: my $currentstring = '';
3244: if ($target eq 'web') {
3245: $currentstring = $token->[2];
3246: }
3247: return $currentstring;
3248: }
3249:
1.181 sakharuk 3250: #-- <iframe> tag (end tag required)
1.122 albertel 3251: sub start_iframe {
3252: my ($target,$token) = @_;
3253: my $currentstring = '';
3254: if ($target eq 'web') {
3255: $currentstring = $token->[4];
3256: }
3257: return $currentstring;
3258: }
3259:
3260: sub end_iframe {
3261: my ($target,$token) = @_;
3262: my $currentstring = '';
3263: if ($target eq 'web') {
3264: $currentstring = $token->[2];
3265: }
3266: return $currentstring;
3267: }
3268:
1.181 sakharuk 3269: #-- <ins> tag (end tag required)
1.122 albertel 3270: sub start_ins {
3271: my ($target,$token) = @_;
3272: my $currentstring = '';
3273: if ($target eq 'web') {
3274: $currentstring = $token->[4];
3275: }
3276: return $currentstring;
3277: }
3278:
3279: sub end_ins {
3280: my ($target,$token) = @_;
3281: my $currentstring = '';
3282: if ($target eq 'web') {
3283: $currentstring = $token->[2];
3284: }
3285: return $currentstring;
3286: }
3287:
1.181 sakharuk 3288: #-- <isindex> tag (end tag forbidden)
1.122 albertel 3289: sub start_isindex {
3290: my ($target,$token) = @_;
3291: my $currentstring = '';
3292: if ($target eq 'web') {
3293: $currentstring = $token->[4];
3294: }
3295: return $currentstring;
3296: }
3297:
3298: sub end_isindex {
3299: my ($target,$token) = @_;
3300: my $currentstring = '';
3301: if ($target eq 'web') {
3302: $currentstring = $token->[2];
3303: }
3304: return $currentstring;
3305: }
3306:
1.181 sakharuk 3307: #-- <keygen> tag (end tag forbidden)
1.122 albertel 3308: sub start_keygen {
3309: my ($target,$token) = @_;
3310: my $currentstring = '';
3311: if ($target eq 'web') {
3312: $currentstring = $token->[4];
3313: }
3314: return $currentstring;
3315: }
3316:
3317: sub end_keygen {
3318: my ($target,$token) = @_;
3319: my $currentstring = '';
3320: if ($target eq 'web') {
3321: $currentstring = $token->[2];
3322: }
3323: return $currentstring;
3324: }
3325:
3326: #-- <label> tag
3327: sub start_label {
3328: my ($target,$token) = @_;
3329: my $currentstring = '';
3330: if ($target eq 'web') {
3331: $currentstring = $token->[4];
3332: }
3333: return $currentstring;
3334: }
3335:
3336: sub end_label {
3337: my ($target,$token) = @_;
3338: my $currentstring = '';
3339: if ($target eq 'web') {
3340: $currentstring = $token->[2];
3341: }
3342: return $currentstring;
3343: }
3344:
1.181 sakharuk 3345: #-- <layer> tag (end tag required)
1.122 albertel 3346: sub start_layer {
3347: my ($target,$token) = @_;
3348: my $currentstring = '';
3349: if ($target eq 'web') {
3350: $currentstring = $token->[4];
3351: }
3352: return $currentstring;
3353: }
3354:
3355: sub end_layer {
3356: my ($target,$token) = @_;
3357: my $currentstring = '';
3358: if ($target eq 'web') {
3359: $currentstring = $token->[2];
3360: }
3361: return $currentstring;
3362: }
3363:
1.181 sakharuk 3364: #-- <legend> tag (end tag required)
1.122 albertel 3365: sub start_legend {
3366: my ($target,$token) = @_;
3367: my $currentstring = '';
3368: if ($target eq 'web') {
3369: $currentstring = $token->[4];
3370: }
3371: return $currentstring;
3372: }
3373:
3374: sub end_legend {
3375: my ($target,$token) = @_;
3376: my $currentstring = '';
3377: if ($target eq 'web') {
3378: $currentstring = $token->[2];
3379: }
3380: return $currentstring;
3381: }
3382:
1.181 sakharuk 3383: #-- <link> tag (end tag forbidden)
1.122 albertel 3384: sub start_link {
3385: my ($target,$token) = @_;
3386: my $currentstring = '';
3387: if ($target eq 'web') {
3388: $currentstring = $token->[4];
3389: }
3390: return $currentstring;
3391: }
3392:
3393: sub end_link {
3394: my ($target,$token) = @_;
3395: my $currentstring = '';
3396: if ($target eq 'web') {
3397: $currentstring = $token->[2];
3398: }
3399: return $currentstring;
3400: }
3401:
1.181 sakharuk 3402: #-- <marquee> tag (end tag optional)
1.122 albertel 3403: sub start_marquee {
3404: my ($target,$token) = @_;
3405: my $currentstring = '';
3406: if ($target eq 'web') {
3407: $currentstring = $token->[4];
3408: }
3409: return $currentstring;
3410: }
3411:
3412: sub end_marquee {
3413: my ($target,$token) = @_;
3414: my $currentstring = '';
3415: if ($target eq 'web') {
3416: $currentstring = $token->[2];
3417: }
3418: return $currentstring;
3419: }
3420:
1.179 sakharuk 3421: #-- <multicol> tag (end tag required)
3422: sub start_multicol {
1.122 albertel 3423: my ($target,$token) = @_;
1.277 ! foxr 3424: my $currentstring = &end_p; # Close any pending <p>
1.122 albertel 3425: if ($target eq 'web') {
1.277 ! foxr 3426: $currentstring .= $token->[4];
1.122 albertel 3427: }
3428: return $currentstring;
3429: }
3430:
1.179 sakharuk 3431: sub end_multicol {
1.122 albertel 3432: my ($target,$token) = @_;
3433: my $currentstring = '';
3434: if ($target eq 'web') {
3435: $currentstring = $token->[2];
3436: }
3437: return $currentstring;
3438: }
3439:
1.179 sakharuk 3440: #-- <nobr> tag (end tag required)
1.122 albertel 3441: sub start_nobr {
3442: my ($target,$token) = @_;
3443: my $currentstring = '';
3444: if ($target eq 'web') {
3445: $currentstring = $token->[4];
1.179 sakharuk 3446: } elsif ($target eq 'tex') {
3447: $currentstring='\mbox{';
3448: }
1.122 albertel 3449: return $currentstring;
3450: }
3451:
3452: sub end_nobr {
3453: my ($target,$token) = @_;
3454: my $currentstring = '';
3455: if ($target eq 'web') {
3456: $currentstring = $token->[2];
1.179 sakharuk 3457: } elsif ($target eq 'tex') {
3458: $currentstring='}';
3459: }
1.122 albertel 3460: return $currentstring;
3461: }
3462:
1.179 sakharuk 3463: #-- <noembed> tag (end tag required)
1.122 albertel 3464: sub start_noembed {
3465: my ($target,$token) = @_;
3466: my $currentstring = '';
3467: if ($target eq 'web') {
3468: $currentstring = $token->[4];
3469: }
3470: return $currentstring;
3471: }
3472:
3473: sub end_noembed {
3474: my ($target,$token) = @_;
3475: my $currentstring = '';
3476: if ($target eq 'web') {
3477: $currentstring = $token->[2];
3478: }
3479: return $currentstring;
3480: }
3481:
1.179 sakharuk 3482: #-- <noframes> tag (end tag required)
1.122 albertel 3483: sub start_noframes {
3484: my ($target,$token) = @_;
3485: my $currentstring = '';
3486: if ($target eq 'web') {
3487: $currentstring = $token->[4];
3488: }
3489: return $currentstring;
3490: }
3491:
3492: sub end_noframes {
3493: my ($target,$token) = @_;
3494: my $currentstring = '';
3495: if ($target eq 'web') {
3496: $currentstring = $token->[2];
3497: }
3498: return $currentstring;
3499: }
3500:
1.179 sakharuk 3501: #-- <nolayer> tag (end tag required)
1.122 albertel 3502: sub start_nolayer {
3503: my ($target,$token) = @_;
3504: my $currentstring = '';
3505: if ($target eq 'web') {
3506: $currentstring = $token->[4];
3507: }
3508: return $currentstring;
3509: }
3510:
3511: sub end_nolayer {
3512: my ($target,$token) = @_;
3513: my $currentstring = '';
3514: if ($target eq 'web') {
3515: $currentstring = $token->[2];
3516: }
3517: return $currentstring;
3518: }
3519:
1.179 sakharuk 3520: #-- <noscript> tag (end tag required)
1.122 albertel 3521: sub start_noscript {
3522: my ($target,$token) = @_;
3523: my $currentstring = '';
3524: if ($target eq 'web') {
3525: $currentstring = $token->[4];
3526: }
3527: return $currentstring;
3528: }
3529:
3530: sub end_noscript {
3531: my ($target,$token) = @_;
3532: my $currentstring = '';
3533: if ($target eq 'web') {
3534: $currentstring = $token->[2];
3535: }
3536: return $currentstring;
3537: }
3538:
1.179 sakharuk 3539: #-- <object> tag (end tag required)
1.122 albertel 3540: sub start_object {
3541: my ($target,$token) = @_;
3542: my $currentstring = '';
3543: if ($target eq 'web') {
3544: $currentstring = $token->[4];
3545: }
3546: return $currentstring;
3547: }
3548:
3549: sub end_object {
3550: my ($target,$token) = @_;
3551: my $currentstring = '';
3552: if ($target eq 'web') {
3553: $currentstring = $token->[2];
3554: }
3555: return $currentstring;
3556: }
3557:
1.179 sakharuk 3558: #-- <optgroup> tag (end tag required)
1.122 albertel 3559: sub start_optgroup {
3560: my ($target,$token) = @_;
3561: my $currentstring = '';
3562: if ($target eq 'web') {
3563: $currentstring = $token->[4];
3564: }
3565: return $currentstring;
3566: }
3567:
3568: sub end_optgroup {
3569: my ($target,$token) = @_;
3570: my $currentstring = '';
3571: if ($target eq 'web') {
3572: $currentstring = $token->[2];
3573: }
3574: return $currentstring;
3575: }
3576:
1.179 sakharuk 3577: #-- <samp> tag (end tag required)
1.122 albertel 3578: sub start_samp {
3579: my ($target,$token) = @_;
3580: my $currentstring = '';
3581: if ($target eq 'web') {
3582: $currentstring = $token->[4];
1.179 sakharuk 3583: } elsif ($target eq 'tex') {
3584: $currentstring='\texttt{';
3585: }
1.122 albertel 3586: return $currentstring;
3587: }
3588:
3589: sub end_samp {
3590: my ($target,$token) = @_;
3591: my $currentstring = '';
3592: if ($target eq 'web') {
3593: $currentstring = $token->[2];
1.179 sakharuk 3594: } elsif ($target eq 'tex') {
3595: $currentstring='}';
3596: }
1.122 albertel 3597: return $currentstring;
3598: }
3599:
3600: #-- <server> tag
3601: sub start_server {
3602: my ($target,$token) = @_;
3603: my $currentstring = '';
3604: if ($target eq 'web') {
3605: $currentstring = $token->[4];
3606: }
3607: return $currentstring;
3608: }
3609:
3610: sub end_server {
3611: my ($target,$token) = @_;
3612: my $currentstring = '';
3613: if ($target eq 'web') {
3614: $currentstring = $token->[2];
3615: }
3616: return $currentstring;
3617: }
3618:
1.179 sakharuk 3619: #-- <spacer> tag (end tag forbidden)
1.122 albertel 3620: sub start_spacer {
3621: my ($target,$token) = @_;
1.277 ! foxr 3622: my $currentstring = &end_p; # Close off any open <p> tag.
1.122 albertel 3623: if ($target eq 'web') {
1.277 ! foxr 3624: $currentstring .= $token->[4];
1.122 albertel 3625: }
3626: return $currentstring;
3627: }
3628:
3629: sub end_spacer {
3630: my ($target,$token) = @_;
3631: my $currentstring = '';
3632: if ($target eq 'web') {
3633: $currentstring = $token->[2];
3634: }
3635: return $currentstring;
3636: }
3637:
1.179 sakharuk 3638: #-- <span> tag (end tag required)
1.122 albertel 3639: sub start_span {
3640: my ($target,$token) = @_;
3641: my $currentstring = '';
3642: if ($target eq 'web') {
3643: $currentstring = $token->[4];
3644: }
3645: return $currentstring;
3646: }
3647:
3648: sub end_span {
3649: my ($target,$token) = @_;
3650: my $currentstring = '';
3651: if ($target eq 'web') {
3652: $currentstring = $token->[2];
3653: }
3654: return $currentstring;
3655: }
3656:
1.179 sakharuk 3657: #-- <tbody> tag (end tag optional)
1.122 albertel 3658: sub start_tbody {
3659: my ($target,$token) = @_;
3660: my $currentstring = '';
3661: if ($target eq 'web') {
3662: $currentstring = $token->[4];
3663: }
3664: return $currentstring;
3665: }
3666:
3667: sub end_tbody {
3668: my ($target,$token) = @_;
3669: my $currentstring = '';
3670: if ($target eq 'web') {
3671: $currentstring = $token->[2];
3672: }
3673: return $currentstring;
3674: }
3675:
1.166 sakharuk 3676: #-- <tfoot> tag (end tag optional)
1.122 albertel 3677: sub start_tfoot {
3678: my ($target,$token) = @_;
3679: my $currentstring = '';
3680: if ($target eq 'web') {
3681: $currentstring = $token->[4];
3682: }
3683: return $currentstring;
3684: }
3685:
3686: sub end_tfoot {
3687: my ($target,$token) = @_;
3688: my $currentstring = '';
3689: if ($target eq 'web') {
3690: $currentstring = $token->[2];
3691: }
3692: return $currentstring;
3693: }
3694:
1.166 sakharuk 3695: #-- <thead> tag (end tag optional)
1.122 albertel 3696: sub start_thead {
3697: my ($target,$token) = @_;
3698: my $currentstring = '';
3699: if ($target eq 'web') {
3700: $currentstring = $token->[4];
3701: }
3702: return $currentstring;
3703: }
1.10 www 3704:
1.122 albertel 3705: sub end_thead {
3706: my ($target,$token) = @_;
3707: my $currentstring = '';
3708: if ($target eq 'web') {
3709: $currentstring = $token->[2];
3710: }
3711: return $currentstring;
3712: }
1.119 www 3713:
1.122 albertel 3714: #-- <var> tag
3715: sub start_var {
1.44 sakharuk 3716: my ($target,$token) = @_;
3717: my $currentstring = '';
3718: if ($target eq 'web') {
1.122 albertel 3719: $currentstring = $token->[4];
1.163 sakharuk 3720: } elsif ($target eq 'tex') {
3721: $currentstring = '\textit{';
3722: }
1.44 sakharuk 3723: return $currentstring;
3724: }
1.10 www 3725:
1.122 albertel 3726: sub end_var {
3727: my ($target,$token) = @_;
1.44 sakharuk 3728: my $currentstring = '';
3729: if ($target eq 'web') {
1.163 sakharuk 3730: $currentstring = $token->[2];
3731: } elsif ($target eq 'tex') {
3732: $currentstring = '}';
1.44 sakharuk 3733: }
3734: return $currentstring;
3735: }
1.119 www 3736:
1.163 sakharuk 3737: #-- <wbr> tag (end tag forbidden)
1.122 albertel 3738: sub start_wbr {
3739: my ($target,$token) = @_;
3740: my $currentstring = '';
3741: if ($target eq 'web') {
3742: $currentstring = $token->[4];
3743: }
3744: return $currentstring;
1.98 albertel 3745: }
3746:
1.122 albertel 3747: sub end_wbr {
3748: my ($target,$token) = @_;
3749: my $currentstring = '';
3750: if ($target eq 'web') {
3751: $currentstring = $token->[2];
3752: }
3753: return $currentstring;
1.98 albertel 3754: }
1.134 sakharuk 3755:
3756: #-- <hideweboutput> tag
3757: sub start_hideweboutput {
3758: my ($target,$token) = @_;
3759: if ($target eq 'web') {
3760: &Apache::lonxml::startredirection();
3761: }
3762: return '';
3763: }
3764:
3765: sub end_hideweboutput {
3766: my ($target,$token) = @_;
3767: my $currentstring = '';
3768: if ($target eq 'web') {
3769: $currentstring = &Apache::lonxml::endredirection();
3770: }
3771: return '';
3772: }
3773:
1.94 sakharuk 3774:
3775: sub image_replication {
3776: my $src = shift;
1.187 albertel 3777: if (not -e $src) { &Apache::lonnet::repcopy($src); }
3778: #replicates eps or ps
3779: my $epssrc = my $pssrc = $src;
3780: $epssrc =~ s/\.(gif|jpg|jpeg|png)$/.eps/i;
3781: $pssrc =~ s/\.(gif|jpg|jpeg|png)$/.ps/i;
3782: if (not -e $epssrc && not -e $pssrc) {
3783: my $result=&Apache::lonnet::repcopy($epssrc);
1.264 raeburn 3784: if ($result ne 'ok') { &Apache::lonnet::repcopy($pssrc); }
1.94 sakharuk 3785: }
3786: return '';
1.195 sakharuk 3787: }
1.275 foxr 3788: #
3789: # Get correct sizing parameter for an image given
3790: # it's initial ht. and wid. This allows sizing of
3791: # images that are generated on-the-fly (e.g. gnuplot)
3792: # as well as serving as a utility for image_size.
3793: #
3794: # Parameter:
3795: # height_param
3796: # width_param - Initial picture dimensions.
3797: # scaling - A scale factor.
3798: # parstack, - the current stack of tag attributes
3799: # from the xml parser
3800: # safeeval, - pointer to the safespace
3801: # depth, - from what level in the stack to look for attributes
3802: # (assumes -1 if unspecified)
3803: # cis - look for attrubutes case insensitively
3804: # (assumes false)
3805: #
3806: # Returns:
3807: # height, width - new dimensions.
3808: #
3809: sub resize_image {
3810: my ($height_param, $width_param, $scaling,
3811: $parstack, $safeeval, $depth, $cis) = @_;
3812:
3813: # First apply the scaling...
1.271 foxr 3814:
1.275 foxr 3815: $height_param = $height_param * $scaling;
3816: $width_param = $width_param * $scaling;
1.261 foxr 3817:
1.197 sakharuk 3818: #do we have any specified LaTeX size of the picture?
1.261 foxr 3819: my $toget='TeXwidth';
3820: if ($cis) {
3821: $toget=lc($toget);
3822: }
1.256 albertel 3823: my $TeXwidth = &Apache::lonxml::get_param($toget,$parstack,
3824: $safeeval,$depth,$cis);
3825: $toget='TeXheight'; if ($cis) { $toget=lc($toget); }
3826: my $TeXheight = &Apache::lonxml::get_param($toget,$parstack,
3827: $safeeval,$depth,$cis);
1.197 sakharuk 3828: #do we have any specified web size of the picture?
3829: my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval,
1.256 albertel 3830: $depth,1);
3831: if ($TeXwidth) {
1.252 matthew 3832: my $old_width_param=$width_param;
1.197 sakharuk 3833: if ($TeXwidth=~/(\d+)\s*\%/) {
1.267 albertel 3834: $width_param = $1*$env{'form.textwidth'}/100;
1.197 sakharuk 3835: } else {
3836: $width_param = $TeXwidth;
3837: }
1.266 albertel 3838: if ($TeXheight) {
3839: $height_param = $TeXheight;
3840: } elsif ($old_width_param) {
3841: $height_param=$TeXwidth/$old_width_param*$height_param;
3842: }
1.256 albertel 3843: } elsif ($TeXheight) {
1.248 foxr 3844: $height_param = $TeXheight;
1.266 albertel 3845: if ($height_param) {
3846: $width_param = $TeXheight/$height_param*$width_param;
3847: }
1.256 albertel 3848: } elsif ($width) {
1.252 matthew 3849: my $old_width_param=$width_param;
1.256 albertel 3850: $width_param = $width*$scaling;
1.266 albertel 3851: if ($old_width_param) {
3852: $height_param=$width_param/$old_width_param*$height_param;
3853: }
1.252 matthew 3854: }
1.267 albertel 3855: if ($width_param > $env{'form.textwidth'}) {
1.252 matthew 3856: my $old_width_param=$width_param;
1.267 albertel 3857: $width_param =0.95*$env{'form.textwidth'};
1.266 albertel 3858: if ($old_width_param) {
3859: $height_param=$width_param/$old_width_param*$height_param;
3860: }
1.197 sakharuk 3861: }
1.275 foxr 3862:
3863: return ($height_param, $width_param);
3864: }
3865:
3866: sub image_size {
3867: my ($src,$scaling,$parstack,$safeeval,$depth,$cis)=@_;
3868:
3869: #size of image from gif/jpg/jpeg/png
3870: my $ressrc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
3871: if (-e $ressrc) {
3872: $src = $ressrc;
3873: }
3874: my $image = Image::Magick->new;
3875: my $current_figure = $image->Read($src);
3876: my $width_param = $image->Get('width');
3877: my $height_param = $image->Get('height');
3878: &Apache::lonxml::debug("Image magick says: $src : Height = $height_param width = $width_param");
3879: undef($image);
3880:
3881: ($height_param, $width_param) = &resize_image($height_param, $width_param,
3882: $scaling, $parstack, $safeeval,
3883: $depth, $cis);
3884:
1.248 foxr 3885: return ($height_param, $width_param);
3886: }
3887:
3888: sub image_width {
3889: my ($height, $width) = &image_size(@_);
3890: return $width;
3891: }
3892: # Not yet 100% sure this is correct in all circumstances..
3893: # due to my uncertainty about mods to image_size.
3894: #
3895: sub image_height {
3896: my ($height, $width) = &image_size(@_);
3897: return $height;
1.197 sakharuk 3898: }
3899:
1.256 albertel 3900: sub get_eps_image {
3901: my ($src)=@_;
1.261 foxr 3902: my $orig_src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1], $src);
1.275 foxr 3903: &Apache::lonxml::debug("get_eps_image: Original image: $orig_src");
1.256 albertel 3904: $src=~s/\.(gif|png|jpg|jpeg)$/\.eps/i;
3905: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.275 foxr 3906: &Apache::lonxml::debug("Filelocation gives: $src");
1.256 albertel 3907: if (! -e $src) {
1.261 foxr 3908: &Apache::lonxml::debug("$src does not exist");
1.264 raeburn 3909: if (&Apache::lonnet::repcopy($src) ne 'ok' ) {
1.261 foxr 3910: &Apache::lonxml::debug("Repcopy of $src failed (1)");
1.256 albertel 3911: #if replication failed try to find ps file
3912: $src=~s/\.eps$/\.ps/;
1.261 foxr 3913: &Apache::lonxml::debug("Now looking for $src");
1.270 foxr 3914: #if no ps file try to replicate it.
3915: my $didrepcopy = &Apache::lonnet::repcopy($src);
3916: &Apache::lonxml::debug("repcopy of $src ... $didrepcopy");
3917: if ( (not -e $src) ||
3918: ($didrepcopy ne 'ok')) {
1.261 foxr 3919: &Apache::lonxml::debug("Failed to find or replicate $src");
3920:
1.256 albertel 3921: #if replication failed try to produce eps file dynamically
3922: $src=~s/\.ps$/\.eps/;
3923: my $temp_file;
1.267 albertel 3924: open(FILE,">>/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat");
1.256 albertel 3925: my $newsrc=$orig_src;
3926: $newsrc =~ s|(.*)/res/|/home/httpd/html/res/|;
1.275 foxr 3927: &Apache::lonxml::debug("queueing $newsrc for dynamic eps production.");
1.256 albertel 3928: print FILE "$newsrc\n";
1.261 foxr 3929: close FILE;
1.256 albertel 3930: $src=~s|/home/httpd/html/res|/home/httpd/prtspool|;
3931: $src=~s|/home/([^/]*)/public_html/|/home/httpd/prtspool/$1/|;
3932: }
3933: }
3934: }
3935: my ($path,$file)=($src=~m|(.*)/([^/]*)$|);
1.261 foxr 3936: &Apache::lonxml::debug("get_eps_image returning: $path / $file<BR />");
1.256 albertel 3937: return ($path.'/',$file);
3938: }
3939:
1.195 sakharuk 3940: sub eps_generation {
3941: my ($src,$file,$width_param) = @_;
1.267 albertel 3942: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat";
1.195 sakharuk 3943: my $temp_file = Apache::File->new('>>'.$filename);
3944: print $temp_file "$src\n";
3945: my $newsrc = $src;
3946: $newsrc =~ s/(\.gif|\.jpg|\.jpeg)$/\.eps/i;
3947: $newsrc=~s/\/home\/httpd\/html\/res//;
3948: $newsrc=~s/\/home\/([^\/]*)\/public_html\//\/$1\//;
3949: $newsrc=~s/\/\.\//\//;
3950: $newsrc=~s/\/([^\/]+)\.(ps|eps)/\//;
1.213 sakharuk 3951: if ($newsrc=~/\/home\/httpd\/lonUsers\//) {
3952: $newsrc=~s/\/home\/httpd\/lonUsers//;
3953: $newsrc=~s/\/([^\/]+)\/(\w)\/(\w)\/(\w)\//\/$1\//;
3954: }
1.239 sakharuk 3955: if ($newsrc=~/\/userfiles\//) {
3956: return ' \graphicspath{{'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
3957: } else {
3958: return ' \graphicspath{{/home/httpd/prtspool'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
3959: }
1.197 sakharuk 3960: }
3961:
3962: sub file_path {
3963: my $src=shift;
3964: my ($file,$path);
3965: if ($src =~ m!(.*)/([^/]*)$!) {
3966: $file = $2;
3967: $path = $1.'/';
3968: }
3969: return $file,$path;
1.126 sakharuk 3970: }
3971:
3972: sub recalc {
3973: my $argument = shift;
3974: if (not $argument=~/(mm|cm|in|pc|pt)/) {return $argument.' mm';}
1.132 sakharuk 3975: $argument=~/\s*(\d+\.?\d*)\s*(mm|cm|in|pc|pt)/;
1.126 sakharuk 3976: my $value=$1;
3977: my $units=$2;
3978: if ($units eq 'cm') {
3979: $value*=10;
3980: } elsif ($units eq 'in') {
3981: $value*=25.4;
3982: } elsif ($units eq 'pc') {
3983: $value*=(25.4*12/72.27);
3984: } elsif ($units eq 'pt') {
3985: $value*=(25.4/72.27);
3986: }
3987: return $value.' mm';
1.94 sakharuk 3988: }
1.184 sakharuk 3989:
3990: sub LATEX_length {
3991: my $garbage=shift;
1.206 sakharuk 3992: $garbage=~s/^\s+$//;
3993: $garbage=~s/^\s+(\S.*)/$1/;#space before
3994: $garbage=~s/(.*\S)\s+$/$1/;#space after
3995: $garbage=~s/(\s)+/$1/;#only one space
3996: $garbage=~s/(\\begin{([^\}]+)}|\\end{([^\}]+)})//g;#remove LaTeX \begin{...} and \end{...}
3997: $garbage=~s/(\$\_\{|\$\_|\$\^{|\$\^|\}\$)//g;#remove $_{,$_,$^{,$^,}$
3998: $garbage=~s/([^\\])\$/$1/g;#$
3999: $garbage=~s/(\\ensuremath\{\_\{|\\ensuremath\{\_|\\ensuremath\{\^{|\\ensuremath\{\^|\})//g;#remove \ensuremath{...}
4000: $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 4001: $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;
4002: $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;
4003: $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 4004: $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;
4005: $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;
4006: $garbage=~s/(\\hat{([^}]+)}|\\check{([^}]+)}|\\dot{([^}]+)}|\\breve{([^}]+)}|\\acute{([^}]+)}|\\ddot{([^}]+)}|\\grave{([^}]+)}|\\tilde{([^}]+)}|\\mathring{([^}]+)}|\\bar{([^}]+)}|\\vec{([^}]+)})/$1/g;
4007: #remove some other LaTeX command
4008: $garbage=~s|\\(\w+)\\|\\|g;
4009: $garbage=~s|\\(\w+)(\s*)|$2|g;
4010: $garbage=~s|\+|11|g;
1.184 sakharuk 4011: my $value=length($garbage);
4012: return $value;
4013: }
4014:
4015:
4016:
1.94 sakharuk 4017:
1.1 sakharuk 4018: 1;
4019: __END__
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