Annotation of loncom/xml/londefdef.pm, revision 1.276
1.1 sakharuk 1: # The LearningOnline Network with CAPA
2: # Tags Default Definition Module
3: #
1.276 ! albertel 4: # $Id: londefdef.pm,v 1.275 2005/05/23 09:49:36 foxr Exp $
1.41 sakharuk 5: #
1.34 www 6: #
7: # Copyright Michigan State University Board of Trustees
8: #
9: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
10: #
11: # LON-CAPA is free software; you can redistribute it and/or modify
12: # it under the terms of the GNU General Public License as published by
13: # the Free Software Foundation; either version 2 of the License, or
14: # (at your option) any later version.
15: #
16: # LON-CAPA is distributed in the hope that it will be useful,
17: # but WITHOUT ANY WARRANTY; without even the implied warranty of
18: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19: # GNU General Public License for more details.
20: #
21: # You should have received a copy of the GNU General Public License
22: # along with LON-CAPA; if not, write to the Free Software
23: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24: #
25: # /home/httpd/html/adm/gpl.txt
26: #
27: # http://www.lon-capa.org/
1.156 sakharuk 28: ## Copyright for TtHfunc and TtMfunc by Ian Hutchinson.
1.34 www 29: # TtHfunc and TtMfunc (the "Code") may be compiled and linked into
30: # binary executable programs or libraries distributed by the
31: # Michigan State University (the "Licensee"), but any binaries so
32: # distributed are hereby licensed only for use in the context
33: # of a program or computational system for which the Licensee is the
34: # primary author or distributor, and which performs substantial
35: # additional tasks beyond the translation of (La)TeX into HTML.
36: # The C source of the Code may not be distributed by the Licensee
37: # to any other parties under any circumstances.
38: #
1.1 sakharuk 39:
1.2 albertel 40: package Apache::londefdef;
1.1 sakharuk 41:
1.267 albertel 42: use Apache::lonnet;
1.1 sakharuk 43: use strict;
1.124 sakharuk 44: use Apache::lonxml;
1.57 sakharuk 45: use Apache::File();
1.70 sakharuk 46: use Image::Magick;
1.118 www 47: use Apache::lonmenu();
48: use Apache::lonmeta();
1.187 albertel 49: use Apache::Constants qw(:common);
1.54 sakharuk 50:
1.160 sakharuk 51:
1.38 harris41 52: BEGIN {
1.15 sakharuk 53:
1.135 sakharuk 54: &Apache::lonxml::register('Apache::londefdef',('a','abbr','acronym','accessrule','address','allow','applet','area','b','base','basefont','bgo','bgsound','big','blink','blockquote','blankspace','body','br','button','caption','center','cite','code','col','colgroup','dd','del','dfn','dir','div','dl','dt','em','embed','externallink','fieldset','font','form','frame','frameset','h1','h2','h3','h4','h5','h6','head','hr','html','i','iframe','img','input','ins','insert','isindex','kbd','keygen','label','layer','legend','li','link','m','map','marquee','menu','meta','multicol','nobr','noembed','noframes','nolayer','noscript','object','ol','optgroup','option','output','p','param','pre','q','s','samp','select','server','small','spacer','span','strike','strong','sub','sup','table','tbody','td','textarea','tfoot','th','thead','title','tr','tt','tthoption','u','ul','var','wbr','hideweboutput'));
1.15 sakharuk 55:
1.188 albertel 56: }
57:
58: sub initialize_londefdef {
59: $Apache::londefdef::TD_redirection=0;
60: @Apache::londefdef::table = ();
61: $Apache::londefdef::select=0;
1.243 albertel 62: undef(@Apache::londefdef::description);
63: @Apache::londefdef::DD=(0);
64: @Apache::londefdef::DT=(0);
1.244 albertel 65: @Apache::londefdef::seenDT=(0);
1.238 albertel 66: $Apache::londefdef::list_index=0;
1.3 sakharuk 67: }
1.1 sakharuk 68:
1.35 sakharuk 69: #======================= TAG SUBROUTINES =====================
1.8 sakharuk 70: #-- <output>
1.21 albertel 71: sub start_output {
1.122 albertel 72: my ($target) = @_;
73: if ($target eq 'meta') { $Apache::lonxml::metamode--; }
74: return '';
1.21 albertel 75: }
76: sub end_output {
1.122 albertel 77: my ($target) = @_;
78: if ($target eq 'meta') { $Apache::lonxml::metamode++; }
79: return '';
1.21 albertel 80: }
1.4 sakharuk 81: #-- <m> tag
1.33 albertel 82: sub start_m {
1.190 albertel 83: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 84: my $currentstring = '';
1.193 albertel 85: my $inside = &Apache::lonxml::get_all_text_unbalanced("/m",$parser);
1.191 albertel 86: if ($target eq 'web' || $target eq 'analyze') {
1.122 albertel 87: &Apache::lonxml::debug("M is starting with:$inside:");
88: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
89: if ($eval eq 'on') {
90: $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
91: #&Apache::lonxml::debug("M is evaulated to:$inside:");
92: }
1.276 ! albertel 93: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
! 94: $currentstring = &Apache::lontexconvert::converted(\$inside,$display);
1.122 albertel 95: if ($Apache::lontexconvert::errorstring) {
96: &Apache::lonxml::warning("tth error: ".
97: $Apache::lontexconvert::errorstring);
98: $Apache::lontexconvert::errorstring='';
99: }
100: #&Apache::lonxml::debug("M is ends with:$currentstring:");
1.178 albertel 101: $Apache::lonxml::post_evaluate=0;
1.122 albertel 102: } elsif ($target eq 'tex') {
1.190 albertel 103: $currentstring = $inside;
1.178 albertel 104: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
105: if ($eval eq 'on') {
106: $currentstring=&Apache::run::evaluate($currentstring,$safeeval,$$parstack[-1]);
107: }
1.122 albertel 108: if ($currentstring=~/^(\s*\\\\\s*)*$/) {$currentstring = ' \vskip 0 mm ';}
1.257 albertel 109: # detect simple math mode entry exits, and convert them
110: # to use \ensuremath
111: if ($currentstring=~/^\s*\$[^\$].*[^\$]\$\s*$/) {
112: $currentstring=~s/^\$//;
113: $currentstring=~s/\$$//;
114: $currentstring='\ensuremath{'.$currentstring.'}';
115: }
1.178 albertel 116: $Apache::lonxml::post_evaluate=0;
1.122 albertel 117: }
118: return $currentstring;
1.33 albertel 119: }
1.122 albertel 120:
1.33 albertel 121: sub end_m {
1.122 albertel 122: my ($target,$token) = @_;
123: my $currentstring = '';
1.204 albertel 124: if ($target eq 'tex') {
1.122 albertel 125: $currentstring = "";
126: }
127: return $currentstring;
1.33 albertel 128: }
1.110 albertel 129:
130: sub start_tthoption {
1.122 albertel 131: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
132: my $result;
133: if ($target eq 'web') {
134: my $inside = &Apache::lonxml::get_all_text("/tthoption",$parser);
135: $inside=~s/^\s*//;
1.267 albertel 136: if ($env{'browser.mathml'}) {
1.122 albertel 137: &tth::ttmoptions($inside);
138: } else {
139: &tth::tthoptions($inside);
140: }
141: }
142: return $result;
1.110 albertel 143: }
144:
145: sub end_tthoption {
1.122 albertel 146: my ($target,$token) = @_;
147: my $result;
148: return $result;
1.110 albertel 149: }
150:
1.181 sakharuk 151: #-- <html> tag (end tag optional)
1.100 albertel 152: sub start_html {
153: my ($target,$token) = @_;
154: my $currentstring = '';
1.267 albertel 155: my $options=$env{'course.'.$env{'request.course.id'}.'.tthoptions'};
1.196 albertel 156: &Apache::lontexconvert::init_tth();
1.269 albertel 157: if ($target eq 'web' || $target eq 'edit' || $target eq 'webgrade' ) {
1.242 albertel 158: $currentstring = &Apache::lonxml::xmlbegin();
1.100 albertel 159: } elsif ($target eq 'tex') {
1.246 albertel 160: $currentstring .= '\documentclass[letterpaper]{article}';
1.267 albertel 161: if (($env{'form.latex_type'}=~'batchmode') ||
162: (!$env{'request.role.adv'})) {$currentstring .='\batchmode';}
1.217 sakharuk 163: $currentstring .= '\newcommand{\keephidden}[1]{}'.
164: '\renewcommand{\deg}{$^{\circ}$}'.
165: '\usepackage{longtable}'.
166: '\usepackage{textcomp}'.
167: '\usepackage{makeidx}'.
168: '\usepackage[dvips]{graphicx}'.
1.248 foxr 169: '\usepackage{picins}'.
1.217 sakharuk 170: '\usepackage{epsfig}'.
171: '\usepackage{calc}'.
172: '\usepackage{amsmath}'.
173: '\usepackage{amssymb}'.
174: '\usepackage{amsfonts}'.
175: '\usepackage{amsthm}'.
176: '\usepackage{amscd}'.
177: '\newenvironment{choicelist}{\begin{list}{}{\setlength{\rightmargin}{0in}\setlength{\leftmargin}{0.13in}\setlength{\topsep}{0.05in}\setlength{\itemsep}{0.022in}\setlength{\parsep}{0in}\setlength{\belowdisplayskip}{0.04in}\setlength{\abovedisplayskip}{0.05in}\setlength{\abovedisplayshortskip}{-0.04in}\setlength{\belowdisplayshortskip}{0.04in}}}{\end{list}}'.
178: '\renewenvironment{theindex}{\begin{list}{}{{\vskip 1mm \noindent \large\textbf{Index}} \newline \setlength{\rightmargin}{0in}\setlength{\leftmargin}{0.13in}\setlength{\topsep}{0.01in}\setlength{\itemsep}{0.1in}\setlength{\parsep}{-0.02in}\setlength{\belowdisplayskip}{0.01in}\setlength{\abovedisplayskip}{0.01in}\setlength{\abovedisplayshortskip}{-0.04in}\setlength{\belowdisplayshortskip}{0.01in}}}{\end{list}}';
1.100 albertel 179: }
180: return $currentstring;
181: }
1.122 albertel 182:
183: sub end_html {
1.232 sakharuk 184: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 185: my $currentstring = '';
186: if ($target eq 'web') {
1.259 albertel 187: $currentstring = '</html>';
1.122 albertel 188: }
189: return $currentstring;
190: }
191:
1.181 sakharuk 192: #-- <head> tag (end tag optional)
1.122 albertel 193: sub start_head {
194: my ($target,$token) = @_;
195: my $currentstring = '';
196: if ($target eq 'web') {
1.242 albertel 197: $currentstring = $token->[4].&Apache::lonxml::fontsettings();
1.122 albertel 198: }
199: return $currentstring;
200: }
201:
202: sub end_head {
203: my ($target,$token) = @_;
204: my $currentstring = '';
1.267 albertel 205: if ($target eq 'web' && $env{'request.state'} eq 'published') {
1.122 albertel 206: $currentstring = &Apache::lonmenu::registerurl(undef,$target).
207: $token->[2];
208: }
209: return $currentstring;
210: }
211:
1.181 sakharuk 212: #-- <map> tag (end tag required)
1.122 albertel 213: sub start_map {
214: my ($target,$token) = @_;
215: my $currentstring = '';
216: if ($target eq 'web') {
217: $currentstring = $token->[4];
218: }
219: return $currentstring;
220: }
221:
222: sub end_map {
223: my ($target,$token) = @_;
224: my $currentstring = '';
225: if ($target eq 'web') {
226: $currentstring = $token->[2];
227: }
228: return $currentstring;
229: }
230:
1.181 sakharuk 231: #-- <select> tag (end tag required)
1.122 albertel 232: sub start_select {
233: my ($target,$token) = @_;
234: my $currentstring = '';
235: if ($target eq 'web') {
236: $currentstring = $token->[4];
1.181 sakharuk 237: } elsif ($target eq 'tex') {
238: $Apache::londefdef::select=0;
239: }
1.122 albertel 240: return $currentstring;
241: }
242:
243: sub end_select {
244: my ($target,$token) = @_;
245: my $currentstring = '';
246: if ($target eq 'web') {
247: $currentstring = $token->[2];
248: }
249: return $currentstring;
250: }
251:
1.181 sakharuk 252: #-- <option> tag (end tag optional)
1.122 albertel 253: sub start_option {
1.181 sakharuk 254: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 255: my $currentstring = '';
256: if ($target eq 'web') {
257: $currentstring = $token->[4];
1.181 sakharuk 258: } elsif ($target eq 'tex') {
259: $Apache::londefdef::select++;
260: if ($Apache::londefdef::select == 1) {
261: $currentstring='\noindent\fbox{'.&Apache::lonxml::get_param('value',$parstack,$safeeval).'}\keephidden{';
262: } else {
263: $currentstring='\keephidden{';
264: }
265: }
1.122 albertel 266: return $currentstring;
267: }
268:
269: sub end_option {
270: my ($target,$token) = @_;
271: my $currentstring = '';
272: if ($target eq 'web') {
273: $currentstring = $token->[2];
1.181 sakharuk 274: } elsif ($target eq 'tex') {
275: $currentstring='}';
276: }
1.122 albertel 277: return $currentstring;
278: }
279:
1.181 sakharuk 280: #-- <input> tag (end tag forbidden)
1.122 albertel 281: sub start_input {
282: my ($target,$token) = @_;
283: my $currentstring = '';
284: if ($target eq 'web') {
285: $currentstring = $token->[4];
286: }
287: return $currentstring;
288: }
289:
290: sub end_input {
291: my ($target,$token) = @_;
292: my $currentstring = '';
293: if ($target eq 'web') {
294: $currentstring = $token->[2];
295: }
296: return $currentstring;
297: }
298:
1.181 sakharuk 299: #-- <textarea> tag (end tag required)
1.122 albertel 300: sub start_textarea {
301: my ($target,$token) = @_;
302: my $currentstring = '';
303: if ($target eq 'web') {
304: $currentstring = $token->[4];
305: }
306: return $currentstring;
307: }
308:
309: sub end_textarea {
310: my ($target,$token) = @_;
311: my $currentstring = '';
312: if ($target eq 'web') {
313: $currentstring = $token->[2];
314: }
315: return $currentstring;
316: }
317:
1.181 sakharuk 318: #-- <form> tag (end tag required)
1.122 albertel 319: sub start_form {
320: my ($target,$token) = @_;
321: my $currentstring = '';
322: if ($target eq 'web') {
323: $currentstring = $token->[4];
324: }
325: return $currentstring;
326: }
327:
328: sub end_form {
329: my ($target,$token) = @_;
330: my $currentstring = '';
331: if ($target eq 'web') {
332: $currentstring = $token->[2];
333: }
334: return $currentstring;
335: }
336:
1.181 sakharuk 337: #-- <title> tag (end tag required)
1.122 albertel 338: sub start_title {
339: my ($target,$token) = @_;
340: my $currentstring = '';
341: if ($target eq 'web') {
342: $currentstring = $token->[4];
343: } elsif ($target eq 'tex') {
1.166 sakharuk 344: $currentstring .= '\keephidden{Title of the document: '
1.122 albertel 345: }
346: if ($target eq 'meta') {
347: $currentstring='<title>';
1.185 albertel 348: &start_output($target);
1.122 albertel 349: }
350: return $currentstring;
351: }
352:
353: sub end_title {
354: my ($target,$token) = @_;
355: my $currentstring = '';
356: if ($target eq 'web') {
357: $currentstring = $token->[2];
358: } elsif ($target eq 'tex') {
359: $currentstring .= '}';
360: }
361: if ($target eq 'meta') {
1.185 albertel 362: &end_output($target);
1.122 albertel 363: $currentstring='</title>';
364: }
365: return $currentstring;
366: }
367:
1.181 sakharuk 368: #-- <meta> tag (end tag forbidden)
1.122 albertel 369: sub start_meta {
370: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
371: my $currentstring = '';
372: if ($target eq 'web') {
373: my $args='';
374: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
375: if ($args eq '') {
376: &Apache::lonxml::get_all_text("/meta",$parser);
377: } else {
378: $currentstring = $token->[4];
1.1 sakharuk 379: }
1.135 sakharuk 380: } elsif ($target eq 'meta') {
1.122 albertel 381: unless (&Apache::lonxml::get_param
382: ('http-equiv',$parstack,$safeeval,undef,1)) {
383: my $name=$token->[2]->{'name'};
384: $name=~tr/A-Z/a-z/;
385: $name=~s/\s/\_/gs;
386: $name=~s/\W//gs;
387: if ($name) {
1.154 www 388: $currentstring='<'.$name;
389: my $display=&Apache::lonxml::get_param
390: ('display',$parstack,$safeeval,undef,1);
391: if ($display) {
392: $display=~s/\"/\'/g;
393: $currentstring.=' display="'.$display.'"';
394: }
395: $currentstring.='>'.
1.122 albertel 396: &Apache::lonxml::get_param
397: ('content',$parstack,$safeeval,undef,1).
1.135 sakharuk 398: '</'.$name.'>';
1.1 sakharuk 399: }
1.154 www 400: my $display=&Apache::lonxml::get_param
401: ('display',$parstack,$safeeval,undef,1);
402: if ($display) {
1.204 albertel 403: $display=&HTML::Entities::encode($display,'<>&"');
1.154 www 404: $currentstring.='<'.$name.'.display>'.$display.
405: '</'.$name.'.display>';
406: }
1.1 sakharuk 407: }
1.135 sakharuk 408: } elsif ($target eq 'tex') {
1.151 sakharuk 409: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
410: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
411: if ((not defined $content) && (not defined $name)) {
412: &Apache::lonxml::startredirection();
413: }
1.122 albertel 414: }
415: return $currentstring;
416: }
417:
418: sub end_meta {
1.165 albertel 419: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 420: my $currentstring = '';
421: if ($target eq 'web') {
422: my $args='';
423: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
424: if ($args ne '') {
1.121 www 425: $currentstring = $token->[4];
1.122 albertel 426: }
1.135 sakharuk 427: } elsif ($target eq 'tex') {
1.165 albertel 428: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
429: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
1.164 albertel 430: if ((not defined $content) && (not defined $name)) {
1.169 albertel 431: &Apache::lonxml::endredirection();
1.164 albertel 432: }
1.135 sakharuk 433: }
1.122 albertel 434: return $currentstring;
435: }
436:
1.121 www 437: # accessrule
1.122 albertel 438: sub start_accessrule {
439: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
440: my $currentstring = '';
441: my $eff=&Apache::lonxml::get_param
442: ('effect',$parstack,$safeeval,undef,1);
443: my $realm=&Apache::lonxml::get_param
444: ('realm',$parstack,$safeeval,undef,1);
1.123 www 445: my $role=&Apache::lonxml::get_param
446: ('role',$parstack,$safeeval,undef,1);
447: $realm=~s/\s+//g;
448: $realm=~s/\//\_/g;
449: $realm=~s/^\_//;
450: $realm=~s/\W/\;/g;
451: $role=~s/\s+//g;
452: $role=~s/\//\_/g;
453: $role=~s/\W/\;/g;
1.122 albertel 454: if ($target eq 'web') {
455: my $args='';
456: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
457: if ($args eq '') {
458: &Apache::lonxml::get_all_text("/accessrule",$parser);
459: } else {
460: $currentstring = $token->[4];
461: }
462: }
463: if ($target eq 'meta') {
1.123 www 464: $currentstring='<rule>'.$eff.':'.$realm.':'.$role.'</rule>';
1.122 albertel 465: }
466: return $currentstring;
467: }
468:
469: sub end_accessrule {
470: my ($target,$token,$tagstack,$parstack,$parser) = @_;
471: my $currentstring = '';
472: if ($target eq 'web') {
473: my $args='';
474: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
475: if ($args ne '') {
476: $currentstring = $token->[4];
477: }
478: }
479: return $currentstring;
480: }
481:
1.181 sakharuk 482: #-- <body> tag (end tag required)
1.122 albertel 483: sub start_body {
484: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
485: my $currentstring = '';
1.244 albertel 486:
1.122 albertel 487: if ($target eq 'web') {
1.170 albertel 488: if ($Apache::lonhomework::parsing_a_problem) {
489: &Apache::lonxml::warning("<body> tag found inside of <problem> tag this can cause problems.");
490: return '';
491: }
1.180 albertel 492: if (!$Apache::lonxml::registered &&
1.267 albertel 493: $env{'request.state'} eq 'published') {
1.122 albertel 494: $currentstring.='<head>'.
495: &Apache::lonmenu::registerurl(undef,$target).'</head>';
496: }
1.155 www 497: # Accessibility
1.267 albertel 498: if ($env{'browser.imagesuppress'} eq 'on') {
1.155 www 499: delete($token->[2]->{'background'});
500: }
1.267 albertel 501: if ($env{'browser.fontenhance'} eq 'on') {
1.155 www 502: my $style='';
503: foreach my $key (keys(%{$token->[2]})) {
504: if ($key =~ /^style$/i) {
505: $style.=$token->[2]->{$key}.';';
506: delete($token->[2]->{$key});
507: }
508: }
509: $token->[2]->{'style'}=$style.'; font-size: x-large;';
510: }
1.267 albertel 511: if ($env{'browser.blackwhite'} eq 'on') {
1.155 www 512: delete($token->[2]->{'font'});
513: delete($token->[2]->{'link'});
514: delete($token->[2]->{'alink'});
515: delete($token->[2]->{'vlink'});
516: delete($token->[2]->{'bgcolor'});
517: delete($token->[2]->{'background'});
518: }
519: # Overload loads
1.122 albertel 520: my $onLoad='';
521: foreach my $key (keys(%{$token->[2]})) {
522: if ($key =~ /^onload$/i) {
523: $onLoad.=$token->[2]->{$key}.';';
524: delete($token->[2]->{$key});
1.121 www 525: }
1.122 albertel 526: }
527: $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad;
528: my $onUnload='';
529: foreach my $key (keys(%{$token->[2]})) {
530: if ($key =~ /^onunload$/i) {
531: $onUnload.=$token->[2]->{$key}.';';
532: delete($token->[2]->{$key});
1.121 www 533: }
534: }
1.122 albertel 535: $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().
536: ';'.$onUnload;
537:
1.267 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) = @_;
1.122 albertel 568: my $currentstring = '';
569: if ($target eq 'web') {
1.259 albertel 570: $currentstring = &Apache::lonxml::xmlend($target,$parser);
1.122 albertel 571: } elsif ($target eq 'tex') {
1.171 sakharuk 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) = @_;
580: my $currentstring = '';
581: if ($target eq 'web') {
582: $currentstring = $token->[4];
583: } elsif ($target eq 'tex') {
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) = @_;
1.122 albertel 649: my $currentstring = '';
650: if ($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') {
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) = @_;
1.122 albertel 698: my $currentstring = '';
699: if ($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) = @_;
1.122 albertel 741: my $currentstring = '';
742: if ($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) = @_;
1.122 albertel 784: my $currentstring = '';
785: if ($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) = @_;
1.122 albertel 827: my $currentstring = '';
828: if ($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) = @_;
1.122 albertel 870: my $currentstring = '';
871: if ($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 $currentstring;
1115: }
1116:
1.181 sakharuk 1117: #-- <p> tag (end tag optional)
1.198 sakharuk 1118: #optional attribute - align="center|left|right"
1.122 albertel 1119: sub start_p {
1.157 sakharuk 1120: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1121: my $currentstring = '';
1122: if ($target eq 'web') {
1123: $currentstring .= $token->[4];
1124: } elsif ($target eq 'tex') {
1.198 sakharuk 1125: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1126: if ($align eq 'center') {
1127: $currentstring='\begin{center}\par';
1128: } elsif ($align eq 'right') {
1.267 albertel 1129: $currentstring='\makebox['.$env{'form.textwidth'}.']{\hfill\llap{';
1.198 sakharuk 1130: } elsif ($align eq 'left') {
1.267 albertel 1131: $currentstring='\noindent\makebox['.$env{'form.textwidth'}.']{\rlap{';
1.216 matthew 1132: } else {
1133: $currentstring='\par ';
1134: }
1.198 sakharuk 1135: my $signal=1;#<p> does not work inside <b>...</b>
1136: foreach my $tag (@$tagstack) {if (lc($tag) eq 'b') {$signal=0;}
1137: if (!$signal) {$currentstring = '';}
1138: }
1.144 sakharuk 1139: }
1.122 albertel 1140: return $currentstring;
1141: }
1142:
1143: sub end_p {
1.198 sakharuk 1144: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1145: my $currentstring = '';
1146: if ($target eq 'web') {
1147: $currentstring .= $token->[2];
1.198 sakharuk 1148: } elsif ($target eq 'tex') {
1.226 sakharuk 1149: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.233 sakharuk 1150: if (not defined $align) {
1151: $currentstring.='\strut\\\\\strut ';
1152: } elsif ($align eq 'center') {
1.226 sakharuk 1153: $currentstring .= '\end{center}';
1154: } elsif ($align eq 'right') {
1155: $currentstring .= '}}';
1156: } elsif ($align eq 'left') {
1157: $currentstring .= '}\hfill}';
1.233 sakharuk 1158: }
1.122 albertel 1159: }
1160: return $currentstring;
1161: }
1162:
1.181 sakharuk 1163: #-- <br> tag (end tag forbidden)
1.122 albertel 1164: sub start_br {
1165: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1166: my $currentstring = '';
1167: if ($target eq 'web') {
1168: $currentstring .= $token->[4];
1169: } elsif ($target eq 'tex') {
1.227 sakharuk 1170: my @tempo=@$tagstack;
1.229 sakharuk 1171: my $signal=0;
1.227 sakharuk 1172: for (my $i=$#tempo;$i>=0;$i--) {
1173: if (($tempo[$i] eq 'b') || ($tempo[$i] eq 'strong') ||
1.230 sakharuk 1174: ($tempo[$i] eq 'ol') || ($tempo[$i] eq 'ul') ||
1175: ($tempo[$i] eq 'td') || ($tempo[$i] eq 'th')) {
1.229 sakharuk 1176: $signal=1;
1.227 sakharuk 1177: last;
1178: }
1179: }
1.229 sakharuk 1180: if ($signal) {
1.219 sakharuk 1181: $currentstring .= ' \vskip 0 mm ';
1182: } elsif ($$tagstack[-2] ne 'sub' && $$tagstack[-2] ne 'sup') {
1183: $currentstring .= '\strut \\\\ \strut ';
1.1 sakharuk 1184: }
1.144 sakharuk 1185: }
1.122 albertel 1186: return $currentstring;
1187: }
1188:
1189: sub end_br {
1190: my ($target,$token) = @_;
1191: my $currentstring = '';
1192: if ($target eq 'web') {
1193: $currentstring .= $token->[2];
1194: }
1195: return $currentstring;
1196: }
1197:
1.181 sakharuk 1198: #-- <big> tag (end tag required)
1.122 albertel 1199: sub start_big {
1200: my ($target,$token) = @_;
1201: my $currentstring = '';
1202: if ($target eq 'web') {
1203: $currentstring .= $token->[4];
1204: } elsif ($target eq 'tex') {
1.137 sakharuk 1205: $currentstring .= '{\large ';
1.144 sakharuk 1206: }
1.122 albertel 1207: return $currentstring;
1208: }
1209:
1210: sub end_big {
1211: my ($target,$token) = @_;
1212: my $currentstring = '';
1213: if ($target eq 'web') {
1214: $currentstring .= $token->[2];
1215: } elsif ($target eq 'tex') {
1216: $currentstring .= '}';
1217: }
1218: return $currentstring;
1219: }
1220:
1.181 sakharuk 1221: #-- <small> tag (end tag required)
1.122 albertel 1222: sub start_small {
1223: my ($target,$token) = @_;
1224: my $currentstring = '';
1225: if ($target eq 'web') {
1226: $currentstring .= $token->[4];
1227: } elsif ($target eq 'tex') {
1228: $currentstring .= '{\footnotesize ';
1.144 sakharuk 1229: }
1.122 albertel 1230: return $currentstring;
1231: }
1232:
1233: sub end_small {
1234: my ($target,$token) = @_;
1235: my $currentstring = '';
1236: if ($target eq 'web') {
1237: $currentstring .= $token->[2];
1238: } elsif ($target eq 'tex') {
1239: $currentstring .= '}';
1240: }
1241: return $currentstring;
1242: }
1243:
1.181 sakharuk 1244: #-- <basefont> tag (end tag forbidden)
1.122 albertel 1245: sub start_basefont {
1.126 sakharuk 1246: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.122 albertel 1247: my $currentstring = '';
1248: if ($target eq 'web') {
1249: $currentstring = $token->[4];
1.126 sakharuk 1250: } elsif ($target eq 'tex') {
1251: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1252: if (defined $basesize) {
1253: $currentstring = '{\\'.$basesize.' ';
1254: }
1255: }
1.122 albertel 1256: return $currentstring;
1257: }
1258:
1259: sub end_basefont {
1.126 sakharuk 1260: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1261: my $currentstring = '';
1262: if ($target eq 'web') {
1263: $currentstring = $token->[4];
1.126 sakharuk 1264: } elsif ($target eq 'tex') {
1265: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1266: if (defined $basesize) {
1267: $currentstring = '}';
1268: }
1269: }
1.122 albertel 1270: return $currentstring;
1271: }
1272:
1.181 sakharuk 1273: #-- <font> tag (end tag required)
1.122 albertel 1274: sub start_font {
1275: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1276: my $currentstring = '';
1277: if ($target eq 'web') {
1278: my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
1.204 albertel 1279: if ($face!~/symbol/i) {
1.267 albertel 1280: if (($env{'browser.fontenhance'} eq 'on') ||
1281: ($env{'browser.blackwhite'} eq 'on')) { return ''; }
1.155 www 1282: }
1.122 albertel 1283: $currentstring = $token->[4];
1.126 sakharuk 1284: } elsif ($target eq 'tex') {
1285: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1286: if (defined $fontsize) {
1287: $currentstring = '{\\'.$fontsize.' ';
1288: }
1289: }
1.122 albertel 1290: return $currentstring;
1291: }
1292:
1293: sub end_font {
1294: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1295: my $currentstring = '';
1296: if ($target eq 'web') {
1297: $currentstring = $token->[2];
1.126 sakharuk 1298: } elsif ($target eq 'tex') {
1299: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1300: if (defined $fontsize) {
1301: $currentstring = '}';
1302: }
1303: }
1.122 albertel 1304: return $currentstring;
1305: }
1306:
1.181 sakharuk 1307: #-- <strike> tag (end tag required)
1.122 albertel 1308: sub start_strike {
1309: my ($target,$token) = @_;
1310: my $currentstring = '';
1311: if ($target eq 'web') {
1312: $currentstring .= $token->[4];
1313: } elsif ($target eq 'tex') {
1314: &Apache::lonxml::startredirection();
1315: }
1316: return $currentstring;
1317: }
1318:
1319: sub end_strike {
1320: my ($target,$token) = @_;
1321: my $currentstring = '';
1322: if ($target eq 'web') {
1323: $currentstring .= $token->[2];
1324: } elsif ($target eq 'tex') {
1325: $currentstring=&Apache::lonxml::endredirection();
1326: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1327: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1328: $currentstring=~s/(\S)\s*$/$1\}/;
1329: }
1330: return $currentstring;
1331: }
1332:
1.181 sakharuk 1333: #-- <s> tag (end tag required)
1.122 albertel 1334: sub start_s {
1335: my ($target,$token) = @_;
1336: my $currentstring = '';
1337: if ($target eq 'web') {
1338: $currentstring .= $token->[4];
1339: } elsif ($target eq 'tex') {
1340: &Apache::lonxml::startredirection();
1341: }
1342: return $currentstring;
1343: }
1344:
1345: sub end_s {
1346: my ($target,$token) = @_;
1347: my $currentstring = '';
1348: if ($target eq 'web') {
1349: $currentstring .= $token->[2];
1350: } elsif ($target eq 'tex') {
1351: $currentstring=&Apache::lonxml::endredirection();
1352: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1353: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1354: $currentstring=~s/(\S)\s*$/$1\}/;
1355: }
1356: return $currentstring;
1357: }
1358:
1.181 sakharuk 1359: #-- <sub> tag (end tag required)
1.122 albertel 1360: sub start_sub {
1361: my ($target,$token) = @_;
1362: my $currentstring = '';
1363: if ($target eq 'web') {
1364: $currentstring .= $token->[4];
1365: } elsif ($target eq 'tex') {
1.202 sakharuk 1366: $currentstring .= '\ensuremath{_{';
1.122 albertel 1367: }
1368: return $currentstring;
1369: }
1370:
1371: sub end_sub {
1372: my ($target,$token) = @_;
1373: my $currentstring = '';
1374: if ($target eq 'web') {
1375: $currentstring .= $token->[2];
1376: } elsif ($target eq 'tex') {
1.202 sakharuk 1377: $currentstring .= '}}';
1.122 albertel 1378: }
1379: return $currentstring;
1380: }
1381:
1.181 sakharuk 1382: #-- <sup> tag (end tag required)
1.122 albertel 1383: sub start_sup {
1384: my ($target,$token) = @_;
1385: my $currentstring = '';
1386: if ($target eq 'web') {
1387: $currentstring .= $token->[4];
1388: } elsif ($target eq 'tex') {
1.202 sakharuk 1389: $currentstring .= '\ensuremath{^{';
1.122 albertel 1390: }
1391: return $currentstring;
1392: }
1393:
1394: sub end_sup {
1395: my ($target,$token) = @_;
1396: my $currentstring = '';
1397: if ($target eq 'web') {
1398: $currentstring .= $token->[2];
1399: } elsif ($target eq 'tex') {
1.202 sakharuk 1400: $currentstring .= '}}';
1.122 albertel 1401: }
1402: return $currentstring;
1403: }
1404:
1.181 sakharuk 1405: #-- <hr> tag (end tag forbidden)
1.122 albertel 1406: sub start_hr {
1.124 sakharuk 1407: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1408: my $currentstring = '';
1409: if ($target eq 'web') {
1410: $currentstring .= $token->[4];
1411: } elsif ($target eq 'tex') {
1.149 sakharuk 1412: my $LaTeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1.124 sakharuk 1413: if (defined $LaTeXwidth) {
1414: if ($LaTeXwidth=~/^%/) {
1415: substr($LaTeXwidth,0,1)='';
1416: $LaTeXwidth=($LaTeXwidth/100).'\textwidth';
1417: }
1418: } else {
1.148 sakharuk 1419: $LaTeXwidth ='0.9\textwidth';
1.124 sakharuk 1420: }
1421: my ($pre,$post);
1422: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1423: if (($align eq 'center') || (not defined $align)) {
1424: $pre=''; $post='';
1425: } elsif ($align eq 'left') {
1426: $pre='\rlap{'; $post='} \hfill';
1427: } elsif ($align eq 'right') {
1428: $pre=' \hfill \llap{'; $post='}';
1429: }
1.148 sakharuk 1430: $currentstring .= ' \vskip 0 mm \noindent\makebox['.$LaTeXwidth.']{'.$pre.'\makebox['.
1.124 sakharuk 1431: $LaTeXwidth.'][b]{\hrulefill}'.$post.'}\vskip 0 mm ';
1.122 albertel 1432: }
1433: return $currentstring;
1434: }
1435:
1436: sub end_hr {
1437: my ($target,$token) = @_;
1438: my $currentstring = '';
1439: if ($target eq 'web') {
1440: $currentstring .= $token->[2];
1.148 sakharuk 1441: }
1.122 albertel 1442: return $currentstring;
1443: }
1444:
1.181 sakharuk 1445: #-- <div> tag (end tag required)
1.122 albertel 1446: sub start_div {
1447: my ($target,$token) = @_;
1448: my $currentstring = '';
1449: if ($target eq 'web') {
1450: $currentstring .= $token->[4];
1451: }
1452: return $currentstring;
1453: }
1454:
1455: sub end_div {
1456: my ($target,$token) = @_;
1457: my $currentstring = '';
1458: if ($target eq 'web') {
1459: $currentstring .= $token->[2];
1460: }
1461: return $currentstring;
1462: }
1463:
1.181 sakharuk 1464: #-- <a> tag (end tag required)
1.122 albertel 1465: sub start_a {
1.149 sakharuk 1466: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1467: my $currentstring = '';
1468: if ($target eq 'web') {
1.250 albertel 1469: my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
1470: undef,1);
1471: $currentstring=&Apache::lonenc::encrypt_ref($token,{'href'=>$href});
1.122 albertel 1472: } elsif ($target eq 'tex') {
1.149 sakharuk 1473: my $a=&Apache::lonxml::get_param('href',$parstack,$safeeval,undef,1);
1.161 sakharuk 1474: my $b=&Apache::lonxml::get_param('name',$parstack,$safeeval,undef,1);
1475: if ($a=~/\S/) {
1476: $a=~s/([^\\])%/$1\\\%/g;
1477: $currentstring .= '\ref{URI: '.$a.'}';
1478: } elsif ($b=~/\S/) {
1479: $currentstring .= '\ref{Anchor: '.$b.'}';
1480: } else {
1481: $currentstring.='';
1482: }
1.122 albertel 1483: }
1484: return $currentstring;
1485: }
1486:
1487: sub end_a {
1.168 albertel 1488: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1489: my $currentstring = '';
1490: if ($target eq 'web') {
1491: $currentstring .= $token->[2];
1492: }
1493: return $currentstring;
1494: }
1495:
1.181 sakharuk 1496: #-- <li> tag (end tag optional)
1.122 albertel 1497: sub start_li {
1.168 albertel 1498: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1499: my $currentstring = '';
1500: if ($target eq 'web') {
1501: $currentstring = $token->[4];
1502: } elsif ($target eq 'tex') {
1.237 sakharuk 1503: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1504: my $value=&Apache::lonxml::get_param('value',$parstack,$safeeval,undef,0);
1.238 albertel 1505: #FIXME need to support types i and I
1506: if ($type=~/disc/) {
1507: $currentstring .= ' \item[$\bullet$] ';
1508: } elsif ($type=~/circle/) {
1509: $currentstring .= ' \item[$\circ$] ';
1.146 sakharuk 1510: } elsif ($type=~/square/) {
1.238 albertel 1511: $currentstring .= ' \item[$\diamond$] ';
1512: } elsif ($type eq '1') {
1513: $currentstring .= ' \item['.($Apache::londefdef::list_index+1).'.]';
1.237 sakharuk 1514: } elsif ($type eq 'A') {
1.238 albertel 1515: $currentstring .= ' \item['.('A'..'Z')[$Apache::londefdef::list_index].'.]';
1.237 sakharuk 1516: } elsif ($type eq 'a') {
1.238 albertel 1517: $currentstring .= ' \item['.('a'..'z')[$Apache::londefdef::list_index].'.]';
1.237 sakharuk 1518: } elsif ($value ne '') {
1519: $currentstring .= ' \item['.$value.'] ';
1.122 albertel 1520: } else {
1.146 sakharuk 1521: $currentstring .= ' \item ';
1.122 albertel 1522: }
1.238 albertel 1523: $Apache::londefdef::list_index++;
1524: }
1.122 albertel 1525: return $currentstring;
1526: }
1527:
1528: sub end_li {
1529: my ($target,$token) = @_;
1530: my $currentstring = '';
1531: if ($target eq 'web') {
1532: $currentstring = $token->[2];
1533: }
1534: return $currentstring;
1535: }
1536:
1.181 sakharuk 1537: #-- <u> tag (end tag required)
1.122 albertel 1538: sub start_u {
1539: my ($target,$token) = @_;
1540: my $currentstring = '';
1541: if ($target eq 'web') {
1542: $currentstring .= $token->[4];
1543: } elsif ($target eq 'tex') {
1544: &Apache::lonxml::startredirection();
1545: }
1546: return $currentstring;
1547: }
1548:
1549: sub end_u {
1550: my ($target,$token) = @_;
1551: my $currentstring = '';
1552: if ($target eq 'web') {
1553: $currentstring .= $token->[2];
1554: } elsif ($target eq 'tex') {
1555: $currentstring=&Apache::lonxml::endredirection();
1556: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1557: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1558: $currentstring=~s/(\S)\s*$/$1\}/;
1559: }
1560: return $currentstring;
1561: }
1562:
1.181 sakharuk 1563: #-- <ul> tag (end tag required)
1.122 albertel 1564: sub start_ul {
1.125 sakharuk 1565: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1566: my $currentstring = '';
1567: if ($target eq 'web') {
1568: $currentstring = $token->[4];
1569: } elsif ($target eq 'tex') {
1.125 sakharuk 1570: my $TeXtype=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1.238 albertel 1571: $Apache::londefdef::list_index=0;
1.125 sakharuk 1572: if ($TeXtype eq 'disc') {
1.222 sakharuk 1573: $currentstring .= '\renewcommand{\labelitemi}{$\bullet$}'.
1574: '\renewcommand{\labelitemii}{$\bullet$}'.
1575: '\renewcommand{\labelitemiii}{$\bullet$}'.
1576: '\renewcommand{\labelitemiv}{$\bullet$}';
1.125 sakharuk 1577: } elsif ($TeXtype eq 'circle') {
1.222 sakharuk 1578: $currentstring .= '\renewcommand{\labelitemi}{$\circ$}'.
1579: '\renewcommand{\labelitemii}{$\circ$}'.
1580: '\renewcommand{\labelitemiii}{$\circ$}'.
1581: '\renewcommand{\labelitemiv}{$\circ$}';
1.125 sakharuk 1582: } elsif ($TeXtype eq 'square') {
1.222 sakharuk 1583: $currentstring .= '\renewcommand{\labelitemi}{$\diamond$}'.
1584: '\renewcommand{\labelitemii}{$\diamond$}'.
1585: '\renewcommand{\labelitemiii}{$\diamond$}'.
1586: '\renewcommand{\labelitemiv}{$\diamond$}';
1.125 sakharuk 1587: }
1.222 sakharuk 1588: $currentstring .= '\strut \begin{itemize}';
1.122 albertel 1589: }
1590: return $currentstring;
1591: }
1592:
1593: sub end_ul {
1594: my ($target,$token) = @_;
1595: my $currentstring = '';
1596: if ($target eq 'web') {
1597: $currentstring = $token->[2];
1598: } elsif ($target eq 'tex') {
1.222 sakharuk 1599: $currentstring = '\end{itemize} \renewcommand{\labelitemi}{$\bullet$}'.
1600: '\renewcommand{\labelitemii}{$\bullet$}'.
1601: '\renewcommand{\labelitemiii}{$\bullet$}'.
1602: '\renewcommand{\labelitemiv}{$\bullet$}\strut ';
1.122 albertel 1603: }
1604: return $currentstring;
1605: }
1606:
1.181 sakharuk 1607: #-- <menu> tag (end tag required)
1.122 albertel 1608: sub start_menu {
1609: my ($target,$token) = @_;
1610: my $currentstring = '';
1611: if ($target eq 'web') {
1612: $currentstring = $token->[4];
1613: } elsif ($target eq 'tex') {
1614: $currentstring = " \\begin{itemize} ";
1615: }
1616: return $currentstring;
1617: }
1618:
1619: sub end_menu {
1620: my ($target,$token) = @_;
1621: my $currentstring = '';
1622: if ($target eq 'web') {
1623: $currentstring = $token->[2];
1624: } elsif ($target eq 'tex') {
1625: $currentstring = " \\end{itemize}";
1626: }
1627: return $currentstring;
1628: }
1629:
1.181 sakharuk 1630: #-- <dir> tag (end tag required)
1.122 albertel 1631: sub start_dir {
1632: my ($target,$token) = @_;
1633: my $currentstring = '';
1634: if ($target eq 'web') {
1635: $currentstring = $token->[4];
1636: } elsif ($target eq 'tex') {
1637: $currentstring = " \\begin{itemize} ";
1638: }
1639: return $currentstring;
1640: }
1641:
1642: sub end_dir {
1643: my ($target,$token) = @_;
1644: my $currentstring = '';
1645: if ($target eq 'web') {
1646: $currentstring = $token->[2];
1647: } elsif ($target eq 'tex') {
1648: $currentstring = " \\end{itemize}";
1649: }
1650: return $currentstring;
1651: }
1652:
1.181 sakharuk 1653: #-- <ol> tag (end tag required)
1.122 albertel 1654: sub start_ol {
1.125 sakharuk 1655: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1656: my $currentstring = '';
1657: if ($target eq 'web') {
1658: $currentstring = $token->[4];
1659: } elsif ($target eq 'tex') {
1.238 albertel 1660: $Apache::londefdef::list_index=0;
1.125 sakharuk 1661: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1662: if ($type eq '1') {
1.222 sakharuk 1663: $currentstring .= '\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1664: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1665: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1666: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}';
1.125 sakharuk 1667: } elsif ($type eq 'A') {
1.222 sakharuk 1668: $currentstring .= '\renewcommand{\labelenumi}{\Alph{enumi}.}'.
1669: '\renewcommand{\labelenumii}{\Alph{enumii}.}'.
1670: '\renewcommand{\labelenumiii}{\Alph{enumiii}.}'.
1671: '\renewcommand{\labelenumiv}{\Alph{enumiv}.}';
1.125 sakharuk 1672: } elsif ($type eq 'a') {
1.222 sakharuk 1673: $currentstring .= '\renewcommand{\labelenumi}{\alph{enumi}.}'.
1674: '\renewcommand{\labelenumii}{\alph{enumii}.}'.
1675: '\renewcommand{\labelenumiii}{\alph{enumiii}.}'.
1676: '\renewcommand{\labelenumiv}{\alph{enumiv}.}';
1.125 sakharuk 1677: } elsif ($type eq 'i') {
1.222 sakharuk 1678: $currentstring .= '\renewcommand{\labelenumi}{\roman{enumi}.}'.
1679: '\renewcommand{\labelenumii}{\roman{enumii}.}'.
1680: '\renewcommand{\labelenumiii}{\roman{enumiii}.}'.
1681: '\renewcommand{\labelenumiv}{\roman{enumiv}.}';
1.125 sakharuk 1682: } elsif ($type eq 'I') {
1.222 sakharuk 1683: $currentstring .= '\renewcommand{\labelenumi}{\Roman{enumi}.}'.
1684: '\renewcommand{\labelenumii}{\Roman{enumii}.}'.
1685: '\renewcommand{\labelenumiii}{\Roman{enumiii}.}'.
1686: '\renewcommand{\labelenumiv}{\Roman{enumiv}.}';
1.125 sakharuk 1687: }
1.222 sakharuk 1688: $currentstring .= '\strut \begin{enumerate}';
1.122 albertel 1689: }
1690: return $currentstring;
1691: }
1692:
1693: sub end_ol {
1694: my ($target,$token) = @_;
1695: my $currentstring = '';
1696: if ($target eq 'web') {
1697: $currentstring = $token->[2];
1698: } elsif ($target eq 'tex') {
1.222 sakharuk 1699: $currentstring = '\end{enumerate}\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1700: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1701: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1702: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}\strut ';
1.122 albertel 1703: }
1704: return $currentstring;
1705: }
1706:
1.181 sakharuk 1707: #-- <dl> tag (end tag required)
1.122 albertel 1708: sub start_dl {
1709: my ($target,$token) = @_;
1710: my $currentstring = '';
1711: if ($target eq 'web') {
1712: $currentstring = $token->[4];
1713: } elsif ($target eq 'tex') {
1.174 sakharuk 1714: $currentstring = '\begin{description}';
1.243 albertel 1715: $Apache::londefdef::DL++;
1716: push(@Apache::londefdef::description,[]);
1717: $Apache::londefdef::DD[$Apache::londefdef::DL]=0;
1718: $Apache::londefdef::DT[$Apache::londefdef::DL]=0;
1.244 albertel 1719: $Apache::londefdef::seenDT[$Apache::londefdef::DL]=0;
1.122 albertel 1720: }
1721: return $currentstring;
1722: }
1723:
1724: sub end_dl {
1.174 sakharuk 1725: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1726: my $currentstring = '';
1727: if ($target eq 'web') {
1728: $currentstring = $token->[2];
1729: } elsif ($target eq 'tex') {
1.243 albertel 1730: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1731: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
1732: foreach my $element (@{$Apache::londefdef::description[-1]}) {
1.174 sakharuk 1733: $currentstring.=' '.$element.' ';
1734: }
1.243 albertel 1735: pop(@Apache::londefdef::description);
1.174 sakharuk 1736: $currentstring.='\end{description}';
1.243 albertel 1737: delete($Apache::londefdef::DD[$Apache::londefdef::DL]);
1738: delete($Apache::londefdef::DT[$Apache::londefdef::DL]);
1.244 albertel 1739: delete($Apache::londefdef::seenDT[$Apache::londefdef::DL]);
1.243 albertel 1740: $Apache::londefdef::DL--;
1.122 albertel 1741: }
1742: return $currentstring;
1743: }
1744:
1.172 sakharuk 1745: #-- <dt> tag (end tag optional)
1.122 albertel 1746: sub start_dt {
1.172 sakharuk 1747: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1748: my $currentstring='';
1.122 albertel 1749: if ($target eq 'web') {
1750: $currentstring = $token->[4];
1751: } elsif ($target eq 'tex') {
1.243 albertel 1752: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1753: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
1.174 sakharuk 1754: &Apache::lonxml::startredirection();
1.243 albertel 1755: $Apache::londefdef::DT[-1]++;
1.244 albertel 1756: $Apache::londefdef::seenDT[-1]=1;
1.122 albertel 1757: }
1758: return $currentstring;
1759: }
1760:
1761: sub end_dt {
1.172 sakharuk 1762: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1763: my $currentstring = '';
1764: if ($target eq 'web') {
1765: $currentstring = $token->[2];
1766: } elsif ($target eq 'tex') {
1.243 albertel 1767: if ($Apache::londefdef::DT[-1]) {
1768: my $data=&item_cleanup();
1.244 albertel 1769: push(@{$Apache::londefdef::description[-1]},'\item['.$data.'] \strut \vskip 0mm');
1.243 albertel 1770: $Apache::londefdef::DT[-1]--;
1771: }
1.122 albertel 1772: }
1773: return $currentstring;
1774: }
1775:
1.173 sakharuk 1776: sub item_cleanup {
1.174 sakharuk 1777: my $item=&Apache::lonxml::endredirection();
1.173 sakharuk 1778: $item=~s/\\begin{center}//g;
1779: $item=~s/\\end{center}//g;
1780: return $item;
1781: }
1782:
1.181 sakharuk 1783: #-- <dd> tag (end tag optional)
1.122 albertel 1784: sub start_dd {
1.147 sakharuk 1785: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1786: my $currentstring = '';
1787: if ($target eq 'web') {
1788: $currentstring = $token->[4];
1.147 sakharuk 1789: } elsif ($target eq 'tex') {
1.243 albertel 1790: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1791: if ($Apache::londefdef::DD[-1]) { &end_dd(@_);}
1.244 albertel 1792: if (!$Apache::londefdef::seenDT[-1]) {
1793: push(@{$Apache::londefdef::description[-1]},'\item[\strut] \strut \vskip 0mm ');
1794: }
1.243 albertel 1795: push(@{$Apache::londefdef::description[-1]},'');
1796: $Apache::londefdef::description[-1]->[-1].=' \strut ';
1797: $Apache::londefdef::DD[-1]++;
1.174 sakharuk 1798: &Apache::lonxml::startredirection();
1.122 albertel 1799: }
1800: return $currentstring;
1801: }
1802:
1803: sub end_dd {
1.174 sakharuk 1804: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1805: my $currentstring = '';
1806: if ($target eq 'web') {
1807: $currentstring = $token->[2];
1.174 sakharuk 1808: } elsif ($target eq 'tex') {
1.243 albertel 1809: $Apache::londefdef::description[-1]->[-1].=
1810: &Apache::lonxml::endredirection().' \vskip 0mm ';
1811: $Apache::londefdef::DD[-1]--;
1.174 sakharuk 1812: }
1.122 albertel 1813: return $currentstring;
1814: }
1815:
1.181 sakharuk 1816: #-- <table> tag (end tag required)
1.206 sakharuk 1817: #list of supported attributes: border,width,TeXwidth
1.91 sakharuk 1818: sub start_table {
1819: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.206 sakharuk 1820: my ($textwidth,$currentstring)=('','');
1.91 sakharuk 1821: if ($target eq 'web') {
1822: $currentstring = $token->[4];
1823: } elsif ($target eq 'tex') {
1824: my $aa = {};
1825: push @Apache::londefdef::table, $aa;
1826: $Apache::londefdef::table[-1]{'row_number'} = -1;
1.222 sakharuk 1827: #maximum table's width (default coincides with text line length)
1.206 sakharuk 1828: if ($#Apache::londefdef::table==0) {
1.267 albertel 1829: $textwidth=&recalc($env{'form.textwidth'}); #result is always in mm
1.206 sakharuk 1830: $textwidth=~/(\d+\.?\d*)/;
1831: $textwidth=0.95*$1; #accounts "internal" LaTeX space for table frame
1832: } else {
1833: if ($Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}]=~/\d/) {
1834: #the maximum width of nested table is determined by LATeX width of parent cell
1835: $textwidth=$Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}];
1836: } else {
1837: #try to use all space not used before (minus 5% for LaTeX table internal) - rather silly
1.228 sakharuk 1838: $textwidth=$Apache::londefdef::table[-2]{'width'};
1.206 sakharuk 1839: for (my $i=0;$i<$Apache::londefdef::table[-2]{'counter_columns'};$i++) {
1840: $textwidth=$textwidth-$Apache::londefdef::table[-2]{'TeXlen'}[0][$i];
1841: }
1842: }
1843: }
1.126 sakharuk 1844: my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1845: if (not defined $TeXwidth) {
1846: my $htmlwidth = &Apache::lonxml::get_param('width',$parstack,$safeeval,undef,1);
1847: if ($htmlwidth=~/%/) {
1.203 sakharuk 1848: $Apache::londefdef::table[-1]{'percent'}=1;
1.126 sakharuk 1849: $htmlwidth=~/(\d+)/;
1.203 sakharuk 1850: $Apache::londefdef::table[-1]{'width'}=$1*$textwidth/100;;
1.126 sakharuk 1851: } else {
1852: $Apache::londefdef::table[-1]{'width'}=$textwidth;
1853: }
1854: } elsif ($TeXwidth=~/%/) {
1.203 sakharuk 1855: $Apache::londefdef::table[-1]{'percent'}=1;
1.126 sakharuk 1856: $TeXwidth=~/(\d+)/;
1.206 sakharuk 1857: $Apache::londefdef::table[-1]{'width'}=$1*$textwidth/100;
1.126 sakharuk 1858: } else {
1.222 sakharuk 1859: $Apache::londefdef::table[-1]{'forcetablewidth'}=1;
1.206 sakharuk 1860: $Apache::londefdef::table[-1]{'width'}=$TeXwidth;
1.126 sakharuk 1861: }
1862: #table's border
1.206 sakharuk 1863: my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval);
1.208 sakharuk 1864: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
1.91 sakharuk 1865: unless (defined $border) { $border = 0; }
1866: if ($border) {
1867: $Apache::londefdef::table[-1]{'hinc'} = '\hline ';
1868: $Apache::londefdef::table[-1]{'vinc'} = '&';
1869: $Apache::londefdef::table[-1]{'vvinc'} = '|';
1870: } else {
1871: $Apache::londefdef::table[-1]{'hinc'} = '';
1872: $Apache::londefdef::table[-1]{'vinc'} = '&';
1873: $Apache::londefdef::table[-1]{'vvinc'} = '';
1874: }
1.206 sakharuk 1875: if ($#Apache::londefdef::table==0) {
1.218 sakharuk 1876: $Apache::londefdef::table[-1]{'output'}='\strut\newline\strut\setlength{\tabcolsep}{1 mm}';
1.206 sakharuk 1877: }
1878: $Apache::londefdef::table[-1]{'output'}.=' \noindent \begin{tabular} ';
1879: $Apache::londefdef::table[-1]{'TeXlen'}=[];
1880: $Apache::londefdef::table[-1]{'objectlen'}=[];
1.229 sakharuk 1881: $Apache::londefdef::table[-1]{'objectsignal'}=[];
1.206 sakharuk 1882: $Apache::londefdef::table[-1]{'maxlen'}=[];
1883: $Apache::londefdef::table[-1]{'minlen'}=[];
1884: $Apache::londefdef::table[-1]{'content'}=[];
1885: $Apache::londefdef::table[-1]{'align'}=[];
1886: $currentstring='\keephidden{NEW TABLE ENTRY}';
1887: }
1.91 sakharuk 1888: return $currentstring;
1889: }
1.122 albertel 1890:
1891: sub end_table {
1892: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1893: my $currentstring = '';
1894: if ($target eq 'web') {
1895: $currentstring = $token->[2];
1896: } elsif ($target eq 'tex') {
1897: my $inmemory = '';
1898: my $output = '';
1.206 sakharuk 1899: my $WARNING='';
1900: #width of columns from TeXwidth attributes
1901: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1902: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
1903: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]<$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn]) {
1904: $Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]=$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn];
1905: }
1906: }
1907: }
1908: #free space and number of empty columns
1909: my ($available_space,$empty_columns)=($Apache::londefdef::table[-1]{'width'},0);
1.228 sakharuk 1910: if ($#Apache::londefdef::table ne 0) {$available_space=0.9*$available_space;}
1.206 sakharuk 1911: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
1912: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]==0) {
1913: $empty_columns++;
1914: } else {
1915: $available_space=$available_space-$Apache::londefdef::table[-1]{'TeXlen'}[0][$jn];
1916: }
1917: }
1918: #boundaries for contents columns
1919: my @min_len=();#columns can not be narrower
1920: my @max_len=();#maximum length of column
1921: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
1922: my ($localmin,$localmax)=(0,0);
1923: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1924: if ($localmin<$Apache::londefdef::table[-1]{'minlen'}[$in][$jn]) {
1925: $localmin=$Apache::londefdef::table[-1]{'minlen'}[$in][$jn];
1926: }
1927: if ($localmax<$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn]) {
1928: $localmax=$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn];
1929: }
1930: }
1931: push @min_len, $localmin;
1932: push @max_len, $localmax;
1.122 albertel 1933: }
1.206 sakharuk 1934: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
1935: my $localmin=0,;
1936: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1937: if ($localmin<$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn]) {
1938: $localmin=$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn];
1939: }
1940: }
1.229 sakharuk 1941: if ($max_len[$jn]<$localmin) {
1942: $max_len[$jn]=$localmin;
1943: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
1944: }#object size is bigger
1945: if ($min_len[$jn]<$localmin) {
1946: $min_len[$jn]=$localmin;
1947: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
1948: }#object size is bigger
1.206 sakharuk 1949: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]!=0) {
1950: $min_len[$jn]=0;
1951: $max_len[$jn]=0;
1952: }
1953: }
1954: #final adjustment of column width
1955: my @fwidth=@{$Apache::londefdef::table[-1]{'TeXlen'}[0]};#final width array
1956: my @adjust=();
1957: #step 1. adjustment by maximum value
1958: my $space_neeeded=0;
1959: for (my $jn=0;$jn<=$#max_len;$jn++) {
1960: $space_neeeded=$space_neeeded+$max_len[$jn];
1961: }
1962: if ($space_neeeded<=$available_space) {
1963: for (my $jn=0;$jn<=$#max_len;$jn++) {
1964: if ($fwidth[$jn]==0) {
1965: $fwidth[$jn]=$max_len[$jn];
1.53 sakharuk 1966: }
1.51 sakharuk 1967: }
1.206 sakharuk 1968: } else {
1969: #step 2. adjustment by minimum value (estimation)
1970: $space_neeeded=0;
1971: for (my $jn=0;$jn<=$#min_len;$jn++) {
1972: $space_neeeded+=$min_len[$jn];
1973: }
1974: if ($space_neeeded>$available_space) {
1975: $WARNING=' \textbf{NOT ENOUGH SPACE FOR TABLE} ';
1976: for (my $jn=0;$jn<=$#max_len;$jn++) {
1977: if ($fwidth[$jn]==0) {
1978: $fwidth[$jn]=$min_len[$jn];
1979: }
1980: }
1.229 sakharuk 1981: #check if we have objects which can be scaled
1982: my $how_many_to_scale=0;
1983: my @to_scale=();
1984: for (my $jn=0;$jn<=$#max_len;$jn++) {
1985: if ($Apache::londefdef::table[-1]{'objectsignal'}[$jn] eq '1') {
1986: $how_many_to_scale++;
1987: push @to_scale, $jn;
1988: }
1989: }
1990: if ($how_many_to_scale>0) {
1991: my $space_to_adjust=($space_neeeded-$available_space)/$how_many_to_scale;
1992: foreach my $jn (@to_scale) {
1993: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1994: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/;
1995: if ($1 ne '') {
1996: my $current_length=&recalc($1);
1997: $current_length=~/(\d+\.?\d*)/;
1998: $current_length=$current_length-$space_to_adjust;
1999: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/width=$current_length mm/;
2000: }
2001: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/\[(\d+\.?\d*)\s*mm\]/;
2002: if ($1 ne '') {
2003: my $current_length=$1;
2004: $current_length=$current_length-$space_to_adjust;
2005: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/\[(\d+\.?\d*)\s*mm\]/\[$current_length mm\]/;
2006: }
2007: }
2008: $fwidth[$jn]=$fwidth[$jn]-$space_to_adjust;
2009: }
2010: }
1.206 sakharuk 2011: } else {
2012: #step 3. adjustment over minimal + corrections
2013: my $enlarge_coef=$available_space/$space_neeeded;
2014: my $acsessive=0;
2015: for (my $jn=0;$jn<=$#min_len;$jn++) {
2016: $adjust[$jn]=$min_len[$jn]*$enlarge_coef;
2017: if ($adjust[$jn]>$max_len[$jn]) {
2018: $fwidth[$jn]=$max_len[$jn];
2019: $acsessive=$acsessive+$adjust[$jn]-$max_len[$jn];
2020: $adjust[$jn]=0;
2021: }
2022: }
2023: if ($acsessive>0) {
2024: #we have an excess of space and can redistribute it
2025: my $notempty_columns=0;
2026: for (my $jn=0;$jn<=$#min_len;$jn++) {
2027: if ($adjust[$jn]!=0) {
2028: $notempty_columns++;
2029: }
2030: }
2031: my $per_column=$acsessive/$notempty_columns;
2032: for (my $jn=0;$jn<=$#min_len;$jn++) {
2033: if ($adjust[$jn]!=0) {
2034: $adjust[$jn]+=$per_column;
2035: $fwidth[$jn]=$adjust[$jn];
2036: }
1.223 sakharuk 2037: }
2038: } else {
2039: for (my $jn=0;$jn<=$#min_len;$jn++) {
2040: $fwidth[$jn]=$adjust[$jn];
1.206 sakharuk 2041: }
2042: }
1.203 sakharuk 2043: }
2044: }
1.222 sakharuk 2045: #use all available width if it is defined in % or as TeXwidth
2046: if (($Apache::londefdef::table[-1]{'percent'}==1) || ($Apache::londefdef::table[-1]{'forcetablewidth'}==1)) {
1.203 sakharuk 2047: my $current=0;
1.206 sakharuk 2048: for (my $i=0;$i<=$#fwidth;$i++) {
2049: $current+=$fwidth[$i];
1.203 sakharuk 2050: }
2051: my $coef=$Apache::londefdef::table[-1]{'width'}/$current;
1.206 sakharuk 2052: for (my $i=0;$i<=$#fwidth;$i++) {
2053: $fwidth[$i]*=$coef;
2054: }
2055: }
2056: #removing of empty columns if allowed
1.208 sakharuk 2057: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
1.206 sakharuk 2058: if ($permission eq 'yes') {
2059: my @cleaned_table=();
2060: my @cleaned_header=();
2061: my $colind=0;
2062: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2063: if ($fwidth[$jn]!=0) {
2064: #we need to copy column
2065: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2066: $cleaned_table[$in][$colind]=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
2067: $cleaned_header[$colind]=$fwidth[$jn];
2068: }
2069: $colind++;
2070: }
1.122 albertel 2071: }
1.206 sakharuk 2072: $Apache::londefdef::table[-1]{'content'}=\@cleaned_table;
2073: @fwidth=@cleaned_header;
1.122 albertel 2074: }
1.206 sakharuk 2075: #construct header of the table
2076: my $header_of_table = '{'.$Apache::londefdef::table[-1]{'vvinc'};
2077: for (my $in=0;$in<=$#fwidth;$in++) {
2078: $header_of_table.='p{'.$fwidth[$in].' mm}'.$Apache::londefdef::table[-1]{'vvinc'};
2079: }
2080: $header_of_table .= '}';
1.126 sakharuk 2081: #fill the table
2082: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1.206 sakharuk 2083: for (my $jn=0;$jn<=$#fwidth;$jn++) {
2084: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
1.228 sakharuk 2085: $output.='\vspace*{-6 mm}\begin{center}';
1.206 sakharuk 2086: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
2087: $output.=' \hfill \llap{'
2088: }
2089: $output.=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
2090: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
1.228 sakharuk 2091: $output.='\end{center}\vspace*{-6 mm}';
1.206 sakharuk 2092: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
2093: $output.='} ';
2094: }
2095: if ($jn!=$#fwidth) {$output.=' '.$Apache::londefdef::table[-1]{'vinc'};}
2096: }
2097: $output.=' \\\\ '.$Apache::londefdef::table[-1]{'hinc'}.' ';
1.122 albertel 2098: }
1.218 sakharuk 2099: $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut\newline\strut ';
1.127 sakharuk 2100: if ($#Apache::londefdef::table > 0) {
2101: my $inmemory = $Apache::londefdef::table[-1]{'output'};
2102: pop @Apache::londefdef::table;
1.129 sakharuk 2103: push @{$Apache::londefdef::table[-1]{'include'}}, $inmemory;
1.127 sakharuk 2104: } else {
2105: $currentstring .= $Apache::londefdef::table[-1]{'output'};
2106: pop @Apache::londefdef::table;
1.143 sakharuk 2107: undef @Apache::londefdef::table;
1.127 sakharuk 2108: }
1.122 albertel 2109: }
2110: return $currentstring;
2111: }
2112:
1.166 sakharuk 2113: #-- <tr> tag (end tag optional)
1.122 albertel 2114: sub start_tr {
2115: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2116: my $currentstring = '';
2117: if ($target eq 'web') {
2118: $currentstring = $token->[4];
2119: } elsif ($target eq 'tex') {
2120: $Apache::londefdef::table[-1]{'row_number'}++;
1.206 sakharuk 2121: my $alignchar=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.122 albertel 2122: if ($alignchar ne '') {
1.206 sakharuk 2123: push @ {$Apache::londefdef::table[-1]{'rows'} },substr($alignchar,0,1);
1.122 albertel 2124: } else {
2125: push @ {$Apache::londefdef::table[-1]{'rows'} }, 'l';
2126: }
2127: push ( @{ $Apache::londefdef::table[-1]{'rowdata'} }, $Apache::londefdef::table[-1]{'hinc'});
2128: $Apache::londefdef::table[-1]{'counter_columns'} = -1;
1.206 sakharuk 2129: push @ {$Apache::londefdef::table[-1]{'TeXlen'}}, [];
2130: push @ {$Apache::londefdef::table[-1]{'objectlen'}}, [];
2131: push @ {$Apache::londefdef::table[-1]{'minlen'}}, [];
2132: push @ {$Apache::londefdef::table[-1]{'maxlen'}}, [];
2133: push @ {$Apache::londefdef::table[-1]{'content'}}, [];
1.122 albertel 2134: }
2135: return $currentstring;
2136: }
2137:
2138: sub end_tr {
1.160 sakharuk 2139: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 2140: my $currentstring = '';
2141: if ($target eq 'web') {
2142: $currentstring = $token->[2];
2143: } elsif ($target eq 'tex') {
1.160 sakharuk 2144: if ($Apache::londefdef::TD_redirection) {
2145: &end_td_tex($parstack,$parser,$safeeval);
2146: }
1.122 albertel 2147: }
2148: return $currentstring;
2149: }
2150:
1.166 sakharuk 2151: #-- <td> tag (end tag optional)
1.122 albertel 2152: sub start_td {
2153: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2154: my $currentstring = '';
2155: if ($target eq 'web') {
2156: $currentstring = $token->[4];
2157: } elsif ($target eq 'tex') {
1.160 sakharuk 2158: $Apache::londefdef::TD_redirection = 1;
1.159 sakharuk 2159: &tag_check('tr','td',$tagstack,$parstack,$parser,$safeeval);
1.122 albertel 2160: }
2161: return $currentstring;
2162: }
1.159 sakharuk 2163:
2164: sub tag_check {
2165: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
1.160 sakharuk 2166: my @ar=@$parstack;
2167: for (my $i=$#ar-1;$i>=0;$i--) {
2168: if (lc($$tagstack[$i]) eq $good_tag) {
2169: &start_td_tex($parstack,$parser,$safeeval);
2170: last;
2171: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2172: splice @ar, $i+1;
2173: &end_td_tex(\@ar,$parser,$safeeval);
2174: &start_td_tex($parstack,$parser,$safeeval);
2175: last;
1.159 sakharuk 2176: }
1.160 sakharuk 2177: }
1.159 sakharuk 2178: return '';
2179: }
2180:
2181: sub start_td_tex {
2182: my ($parstack,$parser,$safeeval) = @_;
1.206 sakharuk 2183: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2184: if ($alignchar eq '') {
2185: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
1.159 sakharuk 2186: }
1.206 sakharuk 2187: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
1.159 sakharuk 2188: $Apache::londefdef::table[-1]{'counter_columns'}++;
1.206 sakharuk 2189: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2190: if (defined $TeXwidth) {
2191: my $current_length=&recalc($TeXwidth);
2192: $current_length=~/(\d+\.?\d*)/;
2193: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2194: }
1.159 sakharuk 2195: &Apache::lonxml::startredirection();
2196: return '';
2197: }
2198:
2199: sub end_td_tex {
2200: my ($parstack,$parser,$safeeval) = @_;
2201: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2202: my $data=&Apache::lonxml::endredirection();
2203: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2204: if (defined $TeXwidth) {
1.206 sakharuk 2205: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2206: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2207: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
1.159 sakharuk 2208: } else {
1.206 sakharuk 2209: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2210: my $garbage_data=$data;
2211: my $fwidth=0;
2212: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2213: my $current_length=&recalc($1);
2214: $current_length=~/(\d+\.?\d*)/;
2215: if ($fwidth<$1) {$fwidth=$1;}
2216: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2217: }
2218: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2219: my $current_length=$1;
2220: if ($fwidth<$current_length) {$fwidth=$current_length;}
2221: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2222: }
2223: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2224: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2225: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2226: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
1.231 sakharuk 2227: } elsif ($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)*/) {
2228: my $garbage_data=$data;
2229: my $fwidth=0;
2230: while ($garbage_data=~/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)\s*\}/) {
2231: my $current_length=&recalc($1);
2232: $current_length=~/(\d+\.?\d*)/;
2233: if ($fwidth<$1) {$fwidth=$1;}
2234: $garbage_data=~s/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2235: }
2236: while ($garbage_data=~/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2237: my $current_length=&recalc($1);
2238: $current_length=~/(\d+\.?\d*)/;
2239: if ($fwidth<$1) {$fwidth=$1;}
2240: $garbage_data=~s/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2241: }
2242: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2243: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2244: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2245: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2246: $data=~s/\\\\\s*$//;
1.159 sakharuk 2247: } else {
1.166 sakharuk 2248: $data=~s/^\s+(\S.*)/$1/;
1.159 sakharuk 2249: $data=~s/(.*\S)\s+$/$1/;
1.166 sakharuk 2250: $data=~s/(\s)+/$1/;
1.206 sakharuk 2251: my ($current_length,$min_length)=(0,0);
1.166 sakharuk 2252: if ($data=~/\\vskip/) {
2253: my $newdata=$data;
2254: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2255: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2256: foreach my $elementdata (@newdata) {
1.206 sakharuk 2257: my $lengthnewdata=2.5*&LATEX_length($elementdata);
1.166 sakharuk 2258: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
1.206 sakharuk 2259: my @words=split(/ /,$elementdata);
2260: foreach my $word (@words) {
2261: my $lengthword=2.5*&LATEX_length($word);
2262: if ($min_length<$lengthword) {$min_length=$lengthword;}
2263: }
1.166 sakharuk 2264: }
2265: } else {
1.206 sakharuk 2266: $current_length=2.5*&LATEX_length($data);
2267: my @words=split(/ /,$data);
2268: foreach my $word (@words) {
1.228 sakharuk 2269: my $lengthword=2*&LATEX_length($word);
1.206 sakharuk 2270: if ($min_length<$lengthword) {$min_length=$lengthword;}
2271: }
1.166 sakharuk 2272: }
1.206 sakharuk 2273: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2274: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2275: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2276: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
1.159 sakharuk 2277: }
2278: }
2279: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
2280: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2281: }
1.206 sakharuk 2282: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
1.159 sakharuk 2283: return'';
2284: }
2285:
1.122 albertel 2286: sub end_td {
1.126 sakharuk 2287: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 2288: my $currentstring = '';
2289: if ($target eq 'web') {
2290: $currentstring = $token->[2];
2291: } elsif ($target eq 'tex') {
1.160 sakharuk 2292: $Apache::londefdef::TD_redirection =0;
1.159 sakharuk 2293: &end_td_tex($parstack,$parser,$safeeval);
1.122 albertel 2294: }
2295: return $currentstring;
2296: }
2297:
1.166 sakharuk 2298: #-- <th> tag (end tag optional)
1.122 albertel 2299: sub start_th {
2300: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2301: my $currentstring = '';
2302: if ($target eq 'web') {
2303: $currentstring = $token->[4];
2304: } elsif ($target eq 'tex') {
1.230 sakharuk 2305: $Apache::londefdef::TD_redirection = 1;
2306: &tagg_check('tr','th',$tagstack,$parstack,$parser,$safeeval);
1.122 albertel 2307: }
2308: return $currentstring;
1.130 sakharuk 2309: }
1.230 sakharuk 2310:
2311: sub tagg_check {
2312: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
2313: my @ar=@$parstack;
2314: for (my $i=$#ar-1;$i>=0;$i--) {
2315: if (lc($$tagstack[$i]) eq $good_tag) {
2316: &start_th_tex($parstack,$parser,$safeeval);
2317: last;
2318: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2319: splice @ar, $i+1;
2320: &end_th_tex(\@ar,$parser,$safeeval);
2321: &start_th_tex($parstack,$parser,$safeeval);
2322: last;
2323: }
2324: }
2325: return '';
2326: }
2327:
2328: sub start_th_tex {
2329: my ($parstack,$parser,$safeeval) = @_;
2330: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2331: if ($alignchar eq '') {
2332: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
2333: }
2334: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
2335: $Apache::londefdef::table[-1]{'counter_columns'}++;
2336: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2337: if (defined $TeXwidth) {
2338: my $current_length=&recalc($TeXwidth);
2339: $current_length=~/(\d+\.?\d*)/;
2340: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2341: }
2342: &Apache::lonxml::startredirection();
2343: return '';
2344: }
2345:
2346: sub end_th_tex {
2347: my ($parstack,$parser,$safeeval) = @_;
2348: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2349: my $data=&Apache::lonxml::endredirection();
2350: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2351: if (defined $TeXwidth) {
2352: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2353: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2354: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2355: } else {
2356: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2357: my $garbage_data=$data;
2358: my $fwidth=0;
2359: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2360: my $current_length=&recalc($1);
2361: $current_length=~/(\d+\.?\d*)/;
2362: if ($fwidth<$1) {$fwidth=$1;}
2363: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2364: }
2365: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2366: my $current_length=$1;
2367: if ($fwidth<$current_length) {$fwidth=$current_length;}
2368: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2369: }
2370: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2371: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2372: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2373: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2374: } else {
2375: $data=~s/^\s+(\S.*)/$1/;
2376: $data=~s/(.*\S)\s+$/$1/;
2377: $data=~s/(\s)+/$1/;
2378: my ($current_length,$min_length)=(0,0);
2379: if ($data=~/\\vskip/) {
2380: my $newdata=$data;
2381: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2382: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2383: foreach my $elementdata (@newdata) {
2384: my $lengthnewdata=2.5*&LATEX_length($elementdata);
2385: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
2386: my @words=split(/ /,$elementdata);
2387: foreach my $word (@words) {
2388: my $lengthword=2.5*&LATEX_length($word);
2389: if ($min_length<$lengthword) {$min_length=$lengthword;}
2390: }
2391: }
2392: } else {
2393: $current_length=2.5*&LATEX_length($data);
2394: my @words=split(/ /,$data);
2395: foreach my $word (@words) {
2396: my $lengthword=2*&LATEX_length($word);
2397: if ($min_length<$lengthword) {$min_length=$lengthword;}
2398: }
2399: }
2400: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2401: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2402: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2403: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
2404: }
2405: }
2406: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
2407: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2408: }
2409: #make data bold
2410: $data='\textbf{'.$data.'}';
2411: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
2412: return'';
2413: }
2414:
1.122 albertel 2415: sub end_th {
1.130 sakharuk 2416: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 2417: my $currentstring = '';
2418: if ($target eq 'web') {
2419: $currentstring = $token->[2];
2420: } elsif ($target eq 'tex') {
1.230 sakharuk 2421: $Apache::londefdef::TD_redirection =0;
2422: &end_th_tex($parstack,$parser,$safeeval);
1.122 albertel 2423: }
2424: return $currentstring;
2425: }
1.230 sakharuk 2426:
1.181 sakharuk 2427: #-- <img> tag (end tag forbidden)
1.249 foxr 2428: #
2429: # Render the <IMG> tag.
2430: # <IMG> has the following attributes (in addition to the
2431: # standard HTML ones:
2432: # TeXwrap - Governs how the tex target will try to wrap text around
2433: # horizontally aligned images.
2434: # TeXwidth - The width of the image when rendered for print (mm).
2435: # TeXheight - The height of the image when rendered for print (mm)
2436: # (Note there seems to also be support for this as a % of page size)
2437: #
1.122 albertel 2438: sub start_img {
2439: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2440: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,
2441: undef,1);
1.189 albertel 2442: if (not $src and ($target eq 'web' or $target eq 'tex')) {
2443: my $inside = &Apache::lonxml::get_all_text("/img",$parser);
2444: return '';
2445: }
1.122 albertel 2446: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$src;
2447: my $currentstring = '';
2448: my $scaling = .3;
1.249 foxr 2449:
2450: # Render unto browsers that which are the browser's...
2451:
1.122 albertel 2452: if ($target eq 'web') {
1.267 albertel 2453: if ($env{'browser.imagesuppress'} ne 'on') {
1.250 albertel 2454: $currentstring.=&Apache::lonenc::encrypt_ref($token,{'src'=>$src});
1.122 albertel 2455: } else {
2456: my $alttag= &Apache::lonxml::get_param
2457: ('alt',$parstack,$safeeval,undef,1);
2458: unless ($alttag) {
2459: $alttag=&Apache::lonmeta::alttag
2460: ($Apache::lonxml::pwd[-1],$src);
1.51 sakharuk 2461: }
1.158 sakharuk 2462: $currentstring.='[IMAGE: '.$alttag.']';
1.1 sakharuk 2463: }
1.249 foxr 2464:
2465: # and render unto TeX that which is LaTeX
2466:
1.122 albertel 2467: } elsif ($target eq 'tex') {
1.248 foxr 2468: #
2469: # The alignment will require some superstructure to be put around
2470: # the \includegraphics stuff. At present we can only partially
2471: # simulate the alignments offered by html.
2472: #
2473: #
2474: my $align = lc(&Apache::lonxml::get_param('align',
2475: $parstack,
2476: $safeeval,
2477: undef,1));
2478: if(!$align) {
2479: $align = "bottom"; # This is html's default so it's ours too.
2480: }
2481: #
2482: &Apache::lonxml::debug("Alignemnt = $align");
2483: # LaTeX's image/text wrapping is really bad since it wants to
2484: # make figures float.
2485: # The user has the optional parameter (applicable only to l/r
2486: # alignment to use the picins/parpic directive to get wrapped text
2487: # this is also imperfect.. that's why we give them a choice...
2488: # so they can't yell at us for our choice.
2489: #
2490: my $latex_rendering = &Apache::lonxml::get_param('TeXwrap',
2491: $parstack,
2492: $safeeval,
2493: undef,0);
2494: &Apache::lonxml::debug("LaTeX rendering = $latex_rendering");
2495: if(!$latex_rendering) {
2496: $latex_rendering = "parbox";
2497: }
1.261 foxr 2498: &Apache::lonxml::debug("LaTeX rendering = $latex_rendering image file: $src");
1.248 foxr 2499:
1.256 albertel 2500: #if original gif/jpg/png file exist do following:
1.266 albertel 2501: my $origsrc=$src;
1.256 albertel 2502: my ($path,$file) = &get_eps_image($src);
1.122 albertel 2503: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.261 foxr 2504: &Apache::lonxml::debug("path = $path file = $file src = $src");
1.192 sakharuk 2505: if (-e $src) {
1.261 foxr 2506: &Apache::lonxml::debug("$src exists");
1.256 albertel 2507: my ($height_param,$width_param)=
1.266 albertel 2508: &image_size($origsrc,0.3,$parstack,$safeeval);
1.262 foxr 2509: my $destpath = $path;
1.263 foxr 2510: $destpath =~ s/ /\_/g; # Spaces in path cause LaTex to vomit.
2511: my $destfile = $file;
2512: $destfile =~ s/ /\_/g;
1.266 albertel 2513: my $size;
2514: if ($width_param) { $size.='width='.$width_param.' mm,'; }
2515: if ($height_param) { $size.='height='.$height_param.' mm]'; }
2516: $size='['.$size;
2517: $size=~s/,$/]/;
1.262 foxr 2518: $currentstring .= '\graphicspath{{'.$destpath.'}}'
1.266 albertel 2519: .'\includegraphics'.$size.'{'.$destfile.'} ';
1.256 albertel 2520:
1.248 foxr 2521: # If there's an alignment specification we need to honor it here.
2522: # For the horizontal alignments, we will also honor the
2523: # value of the latex specfication. The default is parbox,
2524: # and that's used for illegal values too.
2525: #
2526: # Even though we set a default alignment value, the user
2527: # could have given us an illegal value. In that case we
2528: # just use the default alignment of bottom..
2529: if ($align eq "top") {
2530: $currentstring = '\raisebox{-'.$height_param.'mm}{'.$currentstring.'}';
2531: } elsif (($align eq "center") || ($align eq "middle")) { # Being kind
2532: my $offset = $height_param/2;
2533: $currentstring = '\raisebox{-'.$offset.'mm}{'.$currentstring.'}';
2534: } elsif ($align eq "left") {
2535: if ($latex_rendering eq "parpic") {
2536: $currentstring = '\parpic[l]{'.$currentstring.'}';
2537: } else { # parbox rendering
1.255 albertel 2538: $currentstring = "\\strut\\newline\n".
2539: '\parbox{'.$width_param.'mm}{'.$currentstring.'}';
1.248 foxr 2540: }
2541: } elsif ($align eq "right") {
2542: if ($latex_rendering eq "parpic") {
2543: $currentstring = '\parpic[r]{'.$currentstring.'}';
2544: } else { # parbox rendering.
2545: $currentstring = '\parbox{'.$width_param.'mm}{\begin{flushright}'
2546: .$currentstring.'\end{flushright}} \newline'."\n";
2547: }
2548: } else { # Bottom is also default.
2549: # $currentstring = '\raisebox{'.$height_param.'mm}{'.$currentstring.'}';
2550: }
1.122 albertel 2551: } else {
1.261 foxr 2552: &Apache::lonxml::debug("$src does not exist");
1.122 albertel 2553: #original image file doesn't exist so check the alt attribute
2554: my $alt =
2555: &Apache::lonxml::get_param('alt',$parstack,$safeeval,undef,1);
2556: unless ($alt) {
2557: $alt=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
2558: }
2559:
1.256 albertel 2560: if ($alt) { $currentstring .= ' '.$alt.' '; }
1.59 sakharuk 2561: }
1.249 foxr 2562:
2563: # And here's where the semi-quote breaks down: allow the user
2564: # to edit the beast as well by rendering the problem for edit:
1.186 albertel 2565: } elsif ($target eq 'edit') {
2566: $currentstring .=&Apache::edit::tag_start($target,$token);
2567: $currentstring .=&Apache::edit::text_arg('Image Url:','src',$token,70).
2568: &Apache::edit::browse('src',undef,'alt').' '.
2569: &Apache::edit::search('src',undef,'alt').'<br />';
2570: $currentstring .=&Apache::edit::text_arg('Description:','alt',$token,70).'<br />';
2571: $currentstring .=&Apache::edit::text_arg('width (pixel):','width',$token,5);
2572: $currentstring .=&Apache::edit::text_arg('height (pixel):','height',$token,5).'<br />';
2573: $currentstring .=&Apache::edit::text_arg('TeXwidth (mm):','TeXwidth',$token,5);
2574: $currentstring .=&Apache::edit::text_arg('TeXheight (mm):','TeXheight',$token,5);
1.234 albertel 2575: $currentstring .=&Apache::edit::select_arg('Alignment:','align',
2576: ['','bottom','middle','top','left','right'],$token,5);
1.249 foxr 2577: $currentstring .=&Apache::edit::select_arg('TeXwrap:', 'TeXwrap',
2578: ['', 'parbox', 'parpic'], $token, 2);
1.186 albertel 2579: $currentstring .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1.249 foxr 2580: my $src= &Apache::lonxml::get_param('src',$parstack,$safeeval);
2581: my $alt= &Apache::lonxml::get_param('alt',$parstack,$safeeval);
2582: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
2583: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
2584:
2585:
1.186 albertel 2586: $currentstring .= '<img src="'.$src.'" alt="'.$alt.'" ';
2587: if ($width) { $currentstring.=' width="'.$width.'" '; }
2588: if ($height) { $currentstring.=' height="'.$height.'" '; }
2589: $currentstring .= ' />';
2590: } elsif ($target eq 'modified') {
1.210 albertel 2591: my ($osrc,$owidth,$oheight)=
2592: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2593: my $ctag=&Apache::edit::get_new_args($token,$parstack,
1.234 albertel 2594: $safeeval,'src','alt','align',
1.249 foxr 2595: 'TeXwidth','TeXheight', 'TeXwrap',
1.210 albertel 2596: 'width','height');
2597: my ($nsrc,$nwidth,$nheight)=
2598: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2599: my $loc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$nsrc);
2600: &image_replication($loc);
2601: my ($iwidth,$iheight);
2602: if (-e $loc) {
2603: my $image = Image::Magick->new;
2604: $image->Read($loc);
2605: ($iwidth, $iheight) = ($image->Get('width'),
2606: $image->Get('height'));
2607: }
2608: if ($osrc ne $nsrc || (!$nwidth && !$nheight)) {
2609: # changed image or no size specified,
2610: # if they didn't explicitly change the
2611: # width or height use the ones from the image
2612: if ($iwidth && $iheight) {
2613: if ($owidth == $nwidth || (!$nwidth && !$nheight)) {
2614: $token->[2]{'width'} = $iwidth;$ctag=1;
2615: }
2616: if ($oheight == $nheight || (!$nwidth && !$nheight)) {
2617: $token->[2]{'height'}=$iheight;$ctag=1;
1.186 albertel 2618: }
2619: }
2620: }
1.210 albertel 2621: my ($cwidth,$cheight)=($token->[2]{'width'},$token->[2]{'height'});
2622: # if we don't have a width or height
2623: if ($iwidth && $cwidth && !$cheight) {
2624: $token->[2]{'height'}=int(($cwidth/$iwidth)*$iheight);$ctag=1;
2625: }
2626: if ($iheight && $cheight && !$cwidth) {
2627: $token->[2]{'width'}=int(($cheight/$iheight)*$iwidth);$ctag=1;
2628: }
2629: if ($ctag) {$currentstring=&Apache::edit::rebuild_tag($token);}
1.122 albertel 2630: }
1.261 foxr 2631:
1.122 albertel 2632: return $currentstring;
2633: }
2634:
2635: sub end_img {
2636: my ($target,$token) = @_;
2637: my $currentstring = '';
2638: if ($target eq 'web') {
2639: $currentstring = $token->[2];
2640: } elsif ($target eq 'tex') {
2641: $currentstring = '';
2642: }
2643: return $currentstring;
2644: }
2645:
1.181 sakharuk 2646: #-- <applet> tag (end tag required)
1.122 albertel 2647: sub start_applet {
2648: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2649:
2650: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,undef,1);
2651: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$code;
2652:
2653: my $archive=&Apache::lonxml::get_param('archive',$parstack,$safeeval,
2654: undef,1);
2655: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$archive;
2656:
2657: my $currentstring = '';
2658: if ($target eq 'web') {
1.267 albertel 2659: if ($env{'browser.appletsuppress'} ne 'on') {
1.250 albertel 2660: $currentstring = &Apache::lonenc::encrypt_ref($token,
2661: {'code'=>$code,
2662: 'archive'=>$archive}
2663: );
1.122 albertel 2664: } else {
2665: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
2666: $safeeval,undef,1);
2667: unless ($alttag) {
2668: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2669: $code);
1.44 sakharuk 2670: }
1.122 albertel 2671: $currentstring='[APPLET: '.$alttag.']';
1.1 sakharuk 2672: }
1.122 albertel 2673: } elsif ($target eq 'tex') {
1.177 albertel 2674: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
2675: $safeeval,undef,1);
2676: unless ($alttag) {
2677: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,
2678: undef,1);
2679: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2680: $code);
1.175 sakharuk 2681: }
1.177 albertel 2682: $currentstring.='\begin{center} \fbox{Java Applet: '.$alttag.
2683: '.}\end{center}';
1.122 albertel 2684: }
2685: return $currentstring;
2686: }
2687:
2688: sub end_applet {
2689: my ($target,$token) = @_;
2690: my $currentstring = '';
2691: if ($target eq 'web') {
2692: $currentstring = $token->[2];
2693: } elsif ($target eq 'tex') {
2694: }
2695: return $currentstring;
2696: }
2697:
1.181 sakharuk 2698: #-- <embed> tag (end tag optional/required)
1.122 albertel 2699: sub start_embed {
2700: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2701: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2702: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$src;
2703: my $currentstring = '';
2704: if ($target eq 'web') {
1.267 albertel 2705: if ($env{'browser.embedsuppress'} ne 'on') {
1.250 albertel 2706: $currentstring=&Apache::lonenc::encrypt_ref($token,{'src'=>$src});
1.122 albertel 2707: } else {
2708: my $alttag=&Apache::lonxml::get_param
2709: ('alt',$parstack,$safeeval,undef,1);
2710: unless ($alttag) {
2711: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
1.42 albertel 2712: }
1.122 albertel 2713: $currentstring='[EMBED: '.$alttag.']';
1.10 www 2714: }
1.122 albertel 2715: } elsif ($target eq 'tex') {
2716: }
2717: return $currentstring;
2718: }
2719:
2720: sub end_embed {
2721: my ($target,$token) = @_;
2722: my $currentstring = '';
2723: if ($target eq 'web') {
2724: $currentstring = $token->[2];
1.175 sakharuk 2725: } elsif ($target eq 'tex') {
1.122 albertel 2726: }
2727: return $currentstring;
2728: }
2729:
1.181 sakharuk 2730: #-- <param> tag (end tag forbidden)
1.122 albertel 2731: sub start_param {
2732: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2733: if (&Apache::lonxml::get_param
2734: ('name',$parstack,$safeeval,undef,1)=~/^cabbase$/i) {
2735: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
2736: &Apache::lonxml::get_param('value',$parstack,$safeeval,undef,1);
2737: }
2738: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
2739: &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2740: my $currentstring = '';
2741: if ($target eq 'web') {
1.250 albertel 2742: my %toconvert;
2743: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2744: if ($src) { $toconvert{'src'}= $src; }
2745: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval,
2746: undef,1);
1.251 albertel 2747: if ($name=~/^cabbase$/i) {
2748: $toconvert{'value'}=&Apache::lonxml::get_param('value',$parstack,
2749: $safeeval,undef,1);
2750: }
1.250 albertel 2751: $currentstring = &Apache::lonenc::encrypt_ref($token,\%toconvert);
1.122 albertel 2752: } elsif ($target eq 'tex') {
2753: }
2754: return $currentstring;
2755: }
2756:
2757: sub end_param {
2758: my ($target,$token) = @_;
2759: my $currentstring = '';
2760: if ($target eq 'web') {
2761: $currentstring = $token->[2];
2762: } elsif ($target eq 'tex') {
2763: }
2764: return $currentstring;
2765: }
2766:
2767: #-- <allow> tag
2768: sub start_allow {
2769: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2770: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2771: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.138 www 2772: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
2773: &Apache::lonnet::clutter($src);
1.241 albertel 2774: if ($target eq 'tex') { &image_replication($src); }
1.122 albertel 2775: my $result;
2776: if ($target eq 'edit') {
2777: $result .=&Apache::edit::tag_start($target,$token);
2778: $result .=&Apache::edit::text_arg('File Spec:','src',$token,70);
2779: $result .=&Apache::edit::end_row();#.&Apache::edit::start_spanning_row();
2780: } elsif ($target eq 'modified') {
2781: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2782: $safeeval,'src');
2783: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2784: }
2785: return $result;
2786: }
2787:
2788: sub end_allow {
2789: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2790: if ( $target eq 'edit') { return (&Apache::edit::end_table()); }
2791: return '';
2792: }
1.119 www 2793:
1.181 sakharuk 2794: #-- Frames (end tag required)
2795: #-- <frameset>
1.122 albertel 2796: sub start_frameset {
2797: my ($target,$token) = @_;
2798: my $currentstring = '';
2799: if ($target eq 'web') {
1.180 albertel 2800: if (!$Apache::lonxml::registered &&
1.267 albertel 2801: $env{'request.state'} eq 'published') {
1.122 albertel 2802: $currentstring.='<head>'.
2803: &Apache::lonmenu::registerurl(undef,$target).'</head>';
1.10 www 2804: }
1.133 www 2805: my $onLoad='';
2806: foreach my $key (keys(%{$token->[2]})) {
2807: if ($key =~ /^onload$/i) {
2808: $onLoad.=$token->[2]->{$key}.';';
2809: delete($token->[2]->{$key});
2810: }
2811: }
2812: $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad;
2813: my $onUnload='';
2814: foreach my $key (keys(%{$token->[2]})) {
2815: if ($key =~ /^onunload$/i) {
2816: $onUnload.=$token->[2]->{$key}.';';
2817: delete($token->[2]->{$key});
2818: }
2819: }
2820: $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().
2821: ';'.$onUnload;
2822:
2823: $currentstring .= '<'.$token->[1];
2824: foreach (keys %{$token->[2]}) {
2825: $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
2826: }
2827: $currentstring.='>';
1.122 albertel 2828: }
2829: return $currentstring;
2830: }
2831:
2832: sub end_frameset {
2833: my ($target,$token) = @_;
2834: my $currentstring = '';
2835: if ($target eq 'web') {
2836: $currentstring = $token->[2];
2837: }
2838: return $currentstring;
2839: }
1.162 sakharuk 2840:
1.181 sakharuk 2841: #-- <xmp> (end tag required)
1.162 sakharuk 2842: sub start_xmp {
2843: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2844: my $currentstring = '';
2845: if ($target eq 'web') {
2846: $currentstring .= $token->[4];
2847: } elsif ($target eq 'tex') {
2848: $currentstring .= '\begin{verbatim}';
2849: }
2850: return $currentstring;
2851: }
2852:
2853: sub end_xmp {
2854: my ($target,$token) = @_;
2855: my $currentstring = '';
2856: if ($target eq 'web') {
2857: $currentstring .= $token->[2];
2858: } elsif ($target eq 'tex') {
2859: $currentstring .= '\end{verbatim}';
2860: }
2861: return $currentstring;
2862: }
2863:
1.181 sakharuk 2864: #-- <pre> (end tag required)
1.122 albertel 2865: sub start_pre {
1.126 sakharuk 2866: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 2867: my $currentstring = '';
2868: if ($target eq 'web') {
2869: $currentstring .= $token->[4];
2870: } elsif ($target eq 'tex') {
1.136 sakharuk 2871: $currentstring .= '\begin{verbatim}';
1.122 albertel 2872: }
2873: return $currentstring;
2874: }
2875:
2876: sub end_pre {
2877: my ($target,$token) = @_;
2878: my $currentstring = '';
2879: if ($target eq 'web') {
2880: $currentstring .= $token->[2];
2881: } elsif ($target eq 'tex') {
1.136 sakharuk 2882: $currentstring .= '\end{verbatim}';
1.122 albertel 2883: }
2884: return $currentstring;
2885: }
2886:
2887: #-- <insert>
2888: sub start_insert {
2889: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2890: my $currentstring = '';
2891: if ($target eq 'web') {
2892: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
2893: $currentstring .= '<b>'.$display.'</b>';;
2894: }
2895: return $currentstring;
2896: }
2897:
2898: sub end_insert {
2899: my ($target,$token) = @_;
2900: my $currentstring = '';
2901: if ($target eq 'web') {
2902: $currentstring .= '';
2903: }
2904: return $currentstring;
2905: }
2906:
2907: #-- <externallink>
2908: sub start_externallink {
2909: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2910: my $currentstring = '';
2911: if ($target eq 'web') {
2912: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
2913: $currentstring .= '<b>'.$display.'</b>';;
2914: }
2915: return $currentstring;
2916: }
2917:
2918: sub end_externallink {
2919: my ($target,$token) = @_;
2920: my $currentstring = '';
2921: if ($target eq 'web') {
2922: $currentstring .= '';
2923: }
2924: return $currentstring;
2925: }
2926:
2927: #-- <blankspace heigth="">
2928: sub start_blankspace {
2929: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2930: my $currentstring = '';
2931: if ($target eq 'tex') {
2932: my $howmuch = &Apache::lonxml::get_param('heigth',$parstack,$safeeval,undef,1);
2933: $currentstring .= '\vskip '.$howmuch.' ';
2934: }
2935: return $currentstring;
2936: }
2937:
2938: sub end_blankspace {
2939: my ($target,$token) = @_;
2940: my $currentstring = '';
2941: if ($target eq 'tex') {
2942: $currentstring .= '';
2943: }
2944: return $currentstring;
2945: }
2946:
1.181 sakharuk 2947: #-- <abbr> tag (end tag required)
1.122 albertel 2948: sub start_abbr {
2949: my ($target,$token) = @_;
2950: my $currentstring = '';
2951: if ($target eq 'web') {
2952: $currentstring = $token->[4];
2953: }
2954: return $currentstring;
2955: }
2956:
2957: sub end_abbr {
2958: my ($target,$token) = @_;
2959: my $currentstring = '';
2960: if ($target eq 'web') {
2961: $currentstring = $token->[2];
2962: }
2963: return $currentstring;
2964: }
2965:
1.181 sakharuk 2966: #-- <acronym> tag (end tag required)
1.122 albertel 2967: sub start_acronym {
2968: my ($target,$token) = @_;
2969: my $currentstring = '';
2970: if ($target eq 'web') {
2971: $currentstring = $token->[4];
2972: }
2973: return $currentstring;
2974: }
2975:
2976: sub end_acronym {
2977: my ($target,$token) = @_;
2978: my $currentstring = '';
2979: if ($target eq 'web') {
2980: $currentstring = $token->[2];
2981: }
2982: return $currentstring;
2983: }
2984:
1.181 sakharuk 2985: #-- <area> tag (end tag forbidden)
1.122 albertel 2986: sub start_area {
2987: my ($target,$token) = @_;
2988: my $currentstring = '';
2989: if ($target eq 'web') {
2990: $currentstring = $token->[4];
2991: }
2992: return $currentstring;
2993: }
2994:
2995: sub end_area {
2996: my ($target,$token) = @_;
2997: my $currentstring = '';
2998: if ($target eq 'web') {
2999: $currentstring = $token->[2];
3000: }
3001: return $currentstring;
3002: }
3003:
1.181 sakharuk 3004: #-- <base> tag (end tag forbidden)
1.122 albertel 3005: sub start_base {
3006: my ($target,$token) = @_;
3007: my $currentstring = '';
3008: if ($target eq 'web') {
3009: $currentstring = $token->[4];
1.161 sakharuk 3010: }
1.122 albertel 3011: return $currentstring;
3012: }
3013:
3014: sub end_base {
3015: my ($target,$token) = @_;
3016: my $currentstring = '';
3017: if ($target eq 'web') {
3018: $currentstring = $token->[2];
3019: }
3020: return $currentstring;
3021: }
3022:
1.181 sakharuk 3023: #-- <bdo> tag (end tag required)
1.122 albertel 3024: sub start_bdo {
3025: my ($target,$token) = @_;
3026: my $currentstring = '';
3027: if ($target eq 'web') {
3028: $currentstring = $token->[4];
3029: }
3030: return $currentstring;
3031: }
3032:
3033: sub end_bdo {
3034: my ($target,$token) = @_;
3035: my $currentstring = '';
3036: if ($target eq 'web') {
3037: $currentstring = $token->[2];
3038: }
3039: return $currentstring;
3040: }
3041:
1.181 sakharuk 3042: #-- <bgsound> tag (end tag optional)
1.122 albertel 3043: sub start_bgsound {
3044: my ($target,$token) = @_;
3045: my $currentstring = '';
3046: if ($target eq 'web') {
3047: $currentstring = $token->[4];
3048: }
3049: return $currentstring;
3050: }
3051:
3052: sub end_bgsound {
3053: my ($target,$token) = @_;
3054: my $currentstring = '';
3055: if ($target eq 'web') {
3056: $currentstring = $token->[2];
3057: }
3058: return $currentstring;
3059: }
3060:
1.181 sakharuk 3061: #-- <blink> tag (end tag required)
1.122 albertel 3062: sub start_blink {
3063: my ($target,$token) = @_;
3064: my $currentstring = '';
3065: if ($target eq 'web') {
3066: $currentstring = $token->[4];
3067: }
3068: return $currentstring;
3069: }
3070:
3071: sub end_blink {
3072: my ($target,$token) = @_;
3073: my $currentstring = '';
3074: if ($target eq 'web') {
3075: $currentstring = $token->[2];
3076: }
3077: return $currentstring;
3078: }
3079:
1.181 sakharuk 3080: #-- <blockquote> tag (end tag required)
1.122 albertel 3081: sub start_blockquote {
3082: my ($target,$token) = @_;
3083: my $currentstring = '';
3084: if ($target eq 'web') {
3085: $currentstring = $token->[4];
3086: }
3087: return $currentstring;
3088: }
3089:
3090: sub end_blockquote {
3091: my ($target,$token) = @_;
3092: my $currentstring = '';
3093: if ($target eq 'web') {
3094: $currentstring = $token->[2];
3095: }
3096: return $currentstring;
3097: }
3098:
1.181 sakharuk 3099: #-- <button> tag (end tag required)
1.122 albertel 3100: sub start_button {
3101: my ($target,$token) = @_;
3102: my $currentstring = '';
3103: if ($target eq 'web') {
3104: $currentstring = $token->[4];
3105: }
3106: return $currentstring;
3107: }
3108:
3109: sub end_button {
3110: my ($target,$token) = @_;
3111: my $currentstring = '';
3112: if ($target eq 'web') {
3113: $currentstring = $token->[2];
3114: }
3115: return $currentstring;
3116: }
3117:
1.181 sakharuk 3118: #-- <caption> tag (end tag required)
1.122 albertel 3119: sub start_caption {
3120: my ($target,$token) = @_;
3121: my $currentstring = '';
3122: if ($target eq 'web') {
3123: $currentstring = $token->[4];
3124: }
3125: return $currentstring;
3126: }
3127:
3128: sub end_caption {
3129: my ($target,$token) = @_;
3130: my $currentstring = '';
3131: if ($target eq 'web') {
3132: $currentstring = $token->[2];
3133: }
3134: return $currentstring;
3135: }
3136:
1.181 sakharuk 3137: #-- <col> tag (end tag forbdden)
1.122 albertel 3138: sub start_col {
3139: my ($target,$token) = @_;
3140: my $currentstring = '';
3141: if ($target eq 'web') {
3142: $currentstring = $token->[4];
3143: }
3144: return $currentstring;
3145: }
3146:
3147: sub end_col {
3148: my ($target,$token) = @_;
3149: my $currentstring = '';
3150: if ($target eq 'web') {
3151: $currentstring = $token->[2];
3152: }
3153: return $currentstring;
3154: }
3155:
1.181 sakharuk 3156: #-- <colgroup> tag (end tag optional)
1.122 albertel 3157: sub start_colgroup {
3158: my ($target,$token) = @_;
3159: my $currentstring = '';
3160: if ($target eq 'web') {
3161: $currentstring = $token->[4];
3162: }
3163: return $currentstring;
3164: }
3165:
3166: sub end_colgroup {
3167: my ($target,$token) = @_;
3168: my $currentstring = '';
3169: if ($target eq 'web') {
3170: $currentstring = $token->[2];
3171: }
3172: return $currentstring;
3173: }
3174:
1.181 sakharuk 3175: #-- <del> tag (end tag required)
1.122 albertel 3176: sub start_del {
3177: my ($target,$token) = @_;
3178: my $currentstring = '';
3179: if ($target eq 'web') {
3180: $currentstring = $token->[4];
3181: }
3182: return $currentstring;
3183: }
3184:
3185: sub end_del {
3186: my ($target,$token) = @_;
3187: my $currentstring = '';
3188: if ($target eq 'web') {
3189: $currentstring = $token->[2];
3190: }
3191: return $currentstring;
3192: }
3193:
1.181 sakharuk 3194: #-- <fieldset> tag (end tag required)
1.122 albertel 3195: sub start_fieldset {
3196: my ($target,$token) = @_;
3197: my $currentstring = '';
3198: if ($target eq 'web') {
3199: $currentstring = $token->[4];
3200: }
3201: return $currentstring;
3202: }
3203:
3204: sub end_fieldset {
3205: my ($target,$token) = @_;
3206: my $currentstring = '';
3207: if ($target eq 'web') {
3208: $currentstring = $token->[2];
3209: }
3210: return $currentstring;
3211: }
3212:
1.181 sakharuk 3213: #-- <frame> tag (end tag forbidden)
1.122 albertel 3214: sub start_frame {
3215: my ($target,$token) = @_;
3216: my $currentstring = '';
3217: if ($target eq 'web') {
3218: $currentstring = $token->[4];
3219: }
3220: return $currentstring;
3221: }
3222:
3223: sub end_frame {
3224: my ($target,$token) = @_;
3225: my $currentstring = '';
3226: if ($target eq 'web') {
3227: $currentstring = $token->[2];
3228: }
3229: return $currentstring;
3230: }
3231:
1.181 sakharuk 3232: #-- <iframe> tag (end tag required)
1.122 albertel 3233: sub start_iframe {
3234: my ($target,$token) = @_;
3235: my $currentstring = '';
3236: if ($target eq 'web') {
3237: $currentstring = $token->[4];
3238: }
3239: return $currentstring;
3240: }
3241:
3242: sub end_iframe {
3243: my ($target,$token) = @_;
3244: my $currentstring = '';
3245: if ($target eq 'web') {
3246: $currentstring = $token->[2];
3247: }
3248: return $currentstring;
3249: }
3250:
1.181 sakharuk 3251: #-- <ins> tag (end tag required)
1.122 albertel 3252: sub start_ins {
3253: my ($target,$token) = @_;
3254: my $currentstring = '';
3255: if ($target eq 'web') {
3256: $currentstring = $token->[4];
3257: }
3258: return $currentstring;
3259: }
3260:
3261: sub end_ins {
3262: my ($target,$token) = @_;
3263: my $currentstring = '';
3264: if ($target eq 'web') {
3265: $currentstring = $token->[2];
3266: }
3267: return $currentstring;
3268: }
3269:
1.181 sakharuk 3270: #-- <isindex> tag (end tag forbidden)
1.122 albertel 3271: sub start_isindex {
3272: my ($target,$token) = @_;
3273: my $currentstring = '';
3274: if ($target eq 'web') {
3275: $currentstring = $token->[4];
3276: }
3277: return $currentstring;
3278: }
3279:
3280: sub end_isindex {
3281: my ($target,$token) = @_;
3282: my $currentstring = '';
3283: if ($target eq 'web') {
3284: $currentstring = $token->[2];
3285: }
3286: return $currentstring;
3287: }
3288:
1.181 sakharuk 3289: #-- <keygen> tag (end tag forbidden)
1.122 albertel 3290: sub start_keygen {
3291: my ($target,$token) = @_;
3292: my $currentstring = '';
3293: if ($target eq 'web') {
3294: $currentstring = $token->[4];
3295: }
3296: return $currentstring;
3297: }
3298:
3299: sub end_keygen {
3300: my ($target,$token) = @_;
3301: my $currentstring = '';
3302: if ($target eq 'web') {
3303: $currentstring = $token->[2];
3304: }
3305: return $currentstring;
3306: }
3307:
3308: #-- <label> tag
3309: sub start_label {
3310: my ($target,$token) = @_;
3311: my $currentstring = '';
3312: if ($target eq 'web') {
3313: $currentstring = $token->[4];
3314: }
3315: return $currentstring;
3316: }
3317:
3318: sub end_label {
3319: my ($target,$token) = @_;
3320: my $currentstring = '';
3321: if ($target eq 'web') {
3322: $currentstring = $token->[2];
3323: }
3324: return $currentstring;
3325: }
3326:
1.181 sakharuk 3327: #-- <layer> tag (end tag required)
1.122 albertel 3328: sub start_layer {
3329: my ($target,$token) = @_;
3330: my $currentstring = '';
3331: if ($target eq 'web') {
3332: $currentstring = $token->[4];
3333: }
3334: return $currentstring;
3335: }
3336:
3337: sub end_layer {
3338: my ($target,$token) = @_;
3339: my $currentstring = '';
3340: if ($target eq 'web') {
3341: $currentstring = $token->[2];
3342: }
3343: return $currentstring;
3344: }
3345:
1.181 sakharuk 3346: #-- <legend> tag (end tag required)
1.122 albertel 3347: sub start_legend {
3348: my ($target,$token) = @_;
3349: my $currentstring = '';
3350: if ($target eq 'web') {
3351: $currentstring = $token->[4];
3352: }
3353: return $currentstring;
3354: }
3355:
3356: sub end_legend {
3357: my ($target,$token) = @_;
3358: my $currentstring = '';
3359: if ($target eq 'web') {
3360: $currentstring = $token->[2];
3361: }
3362: return $currentstring;
3363: }
3364:
1.181 sakharuk 3365: #-- <link> tag (end tag forbidden)
1.122 albertel 3366: sub start_link {
3367: my ($target,$token) = @_;
3368: my $currentstring = '';
3369: if ($target eq 'web') {
3370: $currentstring = $token->[4];
3371: }
3372: return $currentstring;
3373: }
3374:
3375: sub end_link {
3376: my ($target,$token) = @_;
3377: my $currentstring = '';
3378: if ($target eq 'web') {
3379: $currentstring = $token->[2];
3380: }
3381: return $currentstring;
3382: }
3383:
1.181 sakharuk 3384: #-- <marquee> tag (end tag optional)
1.122 albertel 3385: sub start_marquee {
3386: my ($target,$token) = @_;
3387: my $currentstring = '';
3388: if ($target eq 'web') {
3389: $currentstring = $token->[4];
3390: }
3391: return $currentstring;
3392: }
3393:
3394: sub end_marquee {
3395: my ($target,$token) = @_;
3396: my $currentstring = '';
3397: if ($target eq 'web') {
3398: $currentstring = $token->[2];
3399: }
3400: return $currentstring;
3401: }
3402:
1.179 sakharuk 3403: #-- <multicol> tag (end tag required)
3404: sub start_multicol {
1.122 albertel 3405: my ($target,$token) = @_;
3406: my $currentstring = '';
3407: if ($target eq 'web') {
3408: $currentstring = $token->[4];
3409: }
3410: return $currentstring;
3411: }
3412:
1.179 sakharuk 3413: sub end_multicol {
1.122 albertel 3414: my ($target,$token) = @_;
3415: my $currentstring = '';
3416: if ($target eq 'web') {
3417: $currentstring = $token->[2];
3418: }
3419: return $currentstring;
3420: }
3421:
1.179 sakharuk 3422: #-- <nobr> tag (end tag required)
1.122 albertel 3423: sub start_nobr {
3424: my ($target,$token) = @_;
3425: my $currentstring = '';
3426: if ($target eq 'web') {
3427: $currentstring = $token->[4];
1.179 sakharuk 3428: } elsif ($target eq 'tex') {
3429: $currentstring='\mbox{';
3430: }
1.122 albertel 3431: return $currentstring;
3432: }
3433:
3434: sub end_nobr {
3435: my ($target,$token) = @_;
3436: my $currentstring = '';
3437: if ($target eq 'web') {
3438: $currentstring = $token->[2];
1.179 sakharuk 3439: } elsif ($target eq 'tex') {
3440: $currentstring='}';
3441: }
1.122 albertel 3442: return $currentstring;
3443: }
3444:
1.179 sakharuk 3445: #-- <noembed> tag (end tag required)
1.122 albertel 3446: sub start_noembed {
3447: my ($target,$token) = @_;
3448: my $currentstring = '';
3449: if ($target eq 'web') {
3450: $currentstring = $token->[4];
3451: }
3452: return $currentstring;
3453: }
3454:
3455: sub end_noembed {
3456: my ($target,$token) = @_;
3457: my $currentstring = '';
3458: if ($target eq 'web') {
3459: $currentstring = $token->[2];
3460: }
3461: return $currentstring;
3462: }
3463:
1.179 sakharuk 3464: #-- <noframes> tag (end tag required)
1.122 albertel 3465: sub start_noframes {
3466: my ($target,$token) = @_;
3467: my $currentstring = '';
3468: if ($target eq 'web') {
3469: $currentstring = $token->[4];
3470: }
3471: return $currentstring;
3472: }
3473:
3474: sub end_noframes {
3475: my ($target,$token) = @_;
3476: my $currentstring = '';
3477: if ($target eq 'web') {
3478: $currentstring = $token->[2];
3479: }
3480: return $currentstring;
3481: }
3482:
1.179 sakharuk 3483: #-- <nolayer> tag (end tag required)
1.122 albertel 3484: sub start_nolayer {
3485: my ($target,$token) = @_;
3486: my $currentstring = '';
3487: if ($target eq 'web') {
3488: $currentstring = $token->[4];
3489: }
3490: return $currentstring;
3491: }
3492:
3493: sub end_nolayer {
3494: my ($target,$token) = @_;
3495: my $currentstring = '';
3496: if ($target eq 'web') {
3497: $currentstring = $token->[2];
3498: }
3499: return $currentstring;
3500: }
3501:
1.179 sakharuk 3502: #-- <noscript> tag (end tag required)
1.122 albertel 3503: sub start_noscript {
3504: my ($target,$token) = @_;
3505: my $currentstring = '';
3506: if ($target eq 'web') {
3507: $currentstring = $token->[4];
3508: }
3509: return $currentstring;
3510: }
3511:
3512: sub end_noscript {
3513: my ($target,$token) = @_;
3514: my $currentstring = '';
3515: if ($target eq 'web') {
3516: $currentstring = $token->[2];
3517: }
3518: return $currentstring;
3519: }
3520:
1.179 sakharuk 3521: #-- <object> tag (end tag required)
1.122 albertel 3522: sub start_object {
3523: my ($target,$token) = @_;
3524: my $currentstring = '';
3525: if ($target eq 'web') {
3526: $currentstring = $token->[4];
3527: }
3528: return $currentstring;
3529: }
3530:
3531: sub end_object {
3532: my ($target,$token) = @_;
3533: my $currentstring = '';
3534: if ($target eq 'web') {
3535: $currentstring = $token->[2];
3536: }
3537: return $currentstring;
3538: }
3539:
1.179 sakharuk 3540: #-- <optgroup> tag (end tag required)
1.122 albertel 3541: sub start_optgroup {
3542: my ($target,$token) = @_;
3543: my $currentstring = '';
3544: if ($target eq 'web') {
3545: $currentstring = $token->[4];
3546: }
3547: return $currentstring;
3548: }
3549:
3550: sub end_optgroup {
3551: my ($target,$token) = @_;
3552: my $currentstring = '';
3553: if ($target eq 'web') {
3554: $currentstring = $token->[2];
3555: }
3556: return $currentstring;
3557: }
3558:
1.179 sakharuk 3559: #-- <samp> tag (end tag required)
1.122 albertel 3560: sub start_samp {
3561: my ($target,$token) = @_;
3562: my $currentstring = '';
3563: if ($target eq 'web') {
3564: $currentstring = $token->[4];
1.179 sakharuk 3565: } elsif ($target eq 'tex') {
3566: $currentstring='\texttt{';
3567: }
1.122 albertel 3568: return $currentstring;
3569: }
3570:
3571: sub end_samp {
3572: my ($target,$token) = @_;
3573: my $currentstring = '';
3574: if ($target eq 'web') {
3575: $currentstring = $token->[2];
1.179 sakharuk 3576: } elsif ($target eq 'tex') {
3577: $currentstring='}';
3578: }
1.122 albertel 3579: return $currentstring;
3580: }
3581:
3582: #-- <server> tag
3583: sub start_server {
3584: my ($target,$token) = @_;
3585: my $currentstring = '';
3586: if ($target eq 'web') {
3587: $currentstring = $token->[4];
3588: }
3589: return $currentstring;
3590: }
3591:
3592: sub end_server {
3593: my ($target,$token) = @_;
3594: my $currentstring = '';
3595: if ($target eq 'web') {
3596: $currentstring = $token->[2];
3597: }
3598: return $currentstring;
3599: }
3600:
1.179 sakharuk 3601: #-- <spacer> tag (end tag forbidden)
1.122 albertel 3602: sub start_spacer {
3603: my ($target,$token) = @_;
3604: my $currentstring = '';
3605: if ($target eq 'web') {
3606: $currentstring = $token->[4];
3607: }
3608: return $currentstring;
3609: }
3610:
3611: sub end_spacer {
3612: my ($target,$token) = @_;
3613: my $currentstring = '';
3614: if ($target eq 'web') {
3615: $currentstring = $token->[2];
3616: }
3617: return $currentstring;
3618: }
3619:
1.179 sakharuk 3620: #-- <span> tag (end tag required)
1.122 albertel 3621: sub start_span {
3622: my ($target,$token) = @_;
3623: my $currentstring = '';
3624: if ($target eq 'web') {
3625: $currentstring = $token->[4];
3626: }
3627: return $currentstring;
3628: }
3629:
3630: sub end_span {
3631: my ($target,$token) = @_;
3632: my $currentstring = '';
3633: if ($target eq 'web') {
3634: $currentstring = $token->[2];
3635: }
3636: return $currentstring;
3637: }
3638:
1.179 sakharuk 3639: #-- <tbody> tag (end tag optional)
1.122 albertel 3640: sub start_tbody {
3641: my ($target,$token) = @_;
3642: my $currentstring = '';
3643: if ($target eq 'web') {
3644: $currentstring = $token->[4];
3645: }
3646: return $currentstring;
3647: }
3648:
3649: sub end_tbody {
3650: my ($target,$token) = @_;
3651: my $currentstring = '';
3652: if ($target eq 'web') {
3653: $currentstring = $token->[2];
3654: }
3655: return $currentstring;
3656: }
3657:
1.166 sakharuk 3658: #-- <tfoot> tag (end tag optional)
1.122 albertel 3659: sub start_tfoot {
3660: my ($target,$token) = @_;
3661: my $currentstring = '';
3662: if ($target eq 'web') {
3663: $currentstring = $token->[4];
3664: }
3665: return $currentstring;
3666: }
3667:
3668: sub end_tfoot {
3669: my ($target,$token) = @_;
3670: my $currentstring = '';
3671: if ($target eq 'web') {
3672: $currentstring = $token->[2];
3673: }
3674: return $currentstring;
3675: }
3676:
1.166 sakharuk 3677: #-- <thead> tag (end tag optional)
1.122 albertel 3678: sub start_thead {
3679: my ($target,$token) = @_;
3680: my $currentstring = '';
3681: if ($target eq 'web') {
3682: $currentstring = $token->[4];
3683: }
3684: return $currentstring;
3685: }
1.10 www 3686:
1.122 albertel 3687: sub end_thead {
3688: my ($target,$token) = @_;
3689: my $currentstring = '';
3690: if ($target eq 'web') {
3691: $currentstring = $token->[2];
3692: }
3693: return $currentstring;
3694: }
1.119 www 3695:
1.122 albertel 3696: #-- <var> tag
3697: sub start_var {
1.44 sakharuk 3698: my ($target,$token) = @_;
3699: my $currentstring = '';
3700: if ($target eq 'web') {
1.122 albertel 3701: $currentstring = $token->[4];
1.163 sakharuk 3702: } elsif ($target eq 'tex') {
3703: $currentstring = '\textit{';
3704: }
1.44 sakharuk 3705: return $currentstring;
3706: }
1.10 www 3707:
1.122 albertel 3708: sub end_var {
3709: my ($target,$token) = @_;
1.44 sakharuk 3710: my $currentstring = '';
3711: if ($target eq 'web') {
1.163 sakharuk 3712: $currentstring = $token->[2];
3713: } elsif ($target eq 'tex') {
3714: $currentstring = '}';
1.44 sakharuk 3715: }
3716: return $currentstring;
3717: }
1.119 www 3718:
1.163 sakharuk 3719: #-- <wbr> tag (end tag forbidden)
1.122 albertel 3720: sub start_wbr {
3721: my ($target,$token) = @_;
3722: my $currentstring = '';
3723: if ($target eq 'web') {
3724: $currentstring = $token->[4];
3725: }
3726: return $currentstring;
1.98 albertel 3727: }
3728:
1.122 albertel 3729: sub end_wbr {
3730: my ($target,$token) = @_;
3731: my $currentstring = '';
3732: if ($target eq 'web') {
3733: $currentstring = $token->[2];
3734: }
3735: return $currentstring;
1.98 albertel 3736: }
1.134 sakharuk 3737:
3738: #-- <hideweboutput> tag
3739: sub start_hideweboutput {
3740: my ($target,$token) = @_;
3741: if ($target eq 'web') {
3742: &Apache::lonxml::startredirection();
3743: }
3744: return '';
3745: }
3746:
3747: sub end_hideweboutput {
3748: my ($target,$token) = @_;
3749: my $currentstring = '';
3750: if ($target eq 'web') {
3751: $currentstring = &Apache::lonxml::endredirection();
3752: }
3753: return '';
3754: }
3755:
1.94 sakharuk 3756:
3757: sub image_replication {
3758: my $src = shift;
1.187 albertel 3759: if (not -e $src) { &Apache::lonnet::repcopy($src); }
3760: #replicates eps or ps
3761: my $epssrc = my $pssrc = $src;
3762: $epssrc =~ s/\.(gif|jpg|jpeg|png)$/.eps/i;
3763: $pssrc =~ s/\.(gif|jpg|jpeg|png)$/.ps/i;
3764: if (not -e $epssrc && not -e $pssrc) {
3765: my $result=&Apache::lonnet::repcopy($epssrc);
1.264 raeburn 3766: if ($result ne 'ok') { &Apache::lonnet::repcopy($pssrc); }
1.94 sakharuk 3767: }
3768: return '';
1.195 sakharuk 3769: }
1.275 foxr 3770: #
3771: # Get correct sizing parameter for an image given
3772: # it's initial ht. and wid. This allows sizing of
3773: # images that are generated on-the-fly (e.g. gnuplot)
3774: # as well as serving as a utility for image_size.
3775: #
3776: # Parameter:
3777: # height_param
3778: # width_param - Initial picture dimensions.
3779: # scaling - A scale factor.
3780: # parstack, - the current stack of tag attributes
3781: # from the xml parser
3782: # safeeval, - pointer to the safespace
3783: # depth, - from what level in the stack to look for attributes
3784: # (assumes -1 if unspecified)
3785: # cis - look for attrubutes case insensitively
3786: # (assumes false)
3787: #
3788: # Returns:
3789: # height, width - new dimensions.
3790: #
3791: sub resize_image {
3792: my ($height_param, $width_param, $scaling,
3793: $parstack, $safeeval, $depth, $cis) = @_;
3794:
3795: # First apply the scaling...
1.271 foxr 3796:
1.275 foxr 3797: $height_param = $height_param * $scaling;
3798: $width_param = $width_param * $scaling;
1.261 foxr 3799:
1.197 sakharuk 3800: #do we have any specified LaTeX size of the picture?
1.261 foxr 3801: my $toget='TeXwidth';
3802: if ($cis) {
3803: $toget=lc($toget);
3804: }
1.256 albertel 3805: my $TeXwidth = &Apache::lonxml::get_param($toget,$parstack,
3806: $safeeval,$depth,$cis);
3807: $toget='TeXheight'; if ($cis) { $toget=lc($toget); }
3808: my $TeXheight = &Apache::lonxml::get_param($toget,$parstack,
3809: $safeeval,$depth,$cis);
1.197 sakharuk 3810: #do we have any specified web size of the picture?
3811: my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval,
1.256 albertel 3812: $depth,1);
3813: if ($TeXwidth) {
1.252 matthew 3814: my $old_width_param=$width_param;
1.197 sakharuk 3815: if ($TeXwidth=~/(\d+)\s*\%/) {
1.267 albertel 3816: $width_param = $1*$env{'form.textwidth'}/100;
1.197 sakharuk 3817: } else {
3818: $width_param = $TeXwidth;
3819: }
1.266 albertel 3820: if ($TeXheight) {
3821: $height_param = $TeXheight;
3822: } elsif ($old_width_param) {
3823: $height_param=$TeXwidth/$old_width_param*$height_param;
3824: }
1.256 albertel 3825: } elsif ($TeXheight) {
1.248 foxr 3826: $height_param = $TeXheight;
1.266 albertel 3827: if ($height_param) {
3828: $width_param = $TeXheight/$height_param*$width_param;
3829: }
1.256 albertel 3830: } elsif ($width) {
1.252 matthew 3831: my $old_width_param=$width_param;
1.256 albertel 3832: $width_param = $width*$scaling;
1.266 albertel 3833: if ($old_width_param) {
3834: $height_param=$width_param/$old_width_param*$height_param;
3835: }
1.252 matthew 3836: }
1.267 albertel 3837: if ($width_param > $env{'form.textwidth'}) {
1.252 matthew 3838: my $old_width_param=$width_param;
1.267 albertel 3839: $width_param =0.95*$env{'form.textwidth'};
1.266 albertel 3840: if ($old_width_param) {
3841: $height_param=$width_param/$old_width_param*$height_param;
3842: }
1.197 sakharuk 3843: }
1.275 foxr 3844:
3845: return ($height_param, $width_param);
3846: }
3847:
3848: sub image_size {
3849: my ($src,$scaling,$parstack,$safeeval,$depth,$cis)=@_;
3850:
3851: #size of image from gif/jpg/jpeg/png
3852: my $ressrc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
3853: if (-e $ressrc) {
3854: $src = $ressrc;
3855: }
3856: my $image = Image::Magick->new;
3857: my $current_figure = $image->Read($src);
3858: my $width_param = $image->Get('width');
3859: my $height_param = $image->Get('height');
3860: &Apache::lonxml::debug("Image magick says: $src : Height = $height_param width = $width_param");
3861: undef($image);
3862:
3863: ($height_param, $width_param) = &resize_image($height_param, $width_param,
3864: $scaling, $parstack, $safeeval,
3865: $depth, $cis);
3866:
1.248 foxr 3867: return ($height_param, $width_param);
3868: }
3869:
3870: sub image_width {
3871: my ($height, $width) = &image_size(@_);
3872: return $width;
3873: }
3874: # Not yet 100% sure this is correct in all circumstances..
3875: # due to my uncertainty about mods to image_size.
3876: #
3877: sub image_height {
3878: my ($height, $width) = &image_size(@_);
3879: return $height;
1.197 sakharuk 3880: }
3881:
1.256 albertel 3882: sub get_eps_image {
3883: my ($src)=@_;
1.261 foxr 3884: my $orig_src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1], $src);
1.275 foxr 3885: &Apache::lonxml::debug("get_eps_image: Original image: $orig_src");
1.256 albertel 3886: $src=~s/\.(gif|png|jpg|jpeg)$/\.eps/i;
3887: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.275 foxr 3888: &Apache::lonxml::debug("Filelocation gives: $src");
1.256 albertel 3889: if (! -e $src) {
1.261 foxr 3890: &Apache::lonxml::debug("$src does not exist");
1.264 raeburn 3891: if (&Apache::lonnet::repcopy($src) ne 'ok' ) {
1.261 foxr 3892: &Apache::lonxml::debug("Repcopy of $src failed (1)");
1.256 albertel 3893: #if replication failed try to find ps file
3894: $src=~s/\.eps$/\.ps/;
1.261 foxr 3895: &Apache::lonxml::debug("Now looking for $src");
1.270 foxr 3896: #if no ps file try to replicate it.
3897: my $didrepcopy = &Apache::lonnet::repcopy($src);
3898: &Apache::lonxml::debug("repcopy of $src ... $didrepcopy");
3899: if ( (not -e $src) ||
3900: ($didrepcopy ne 'ok')) {
1.261 foxr 3901: &Apache::lonxml::debug("Failed to find or replicate $src");
3902:
1.256 albertel 3903: #if replication failed try to produce eps file dynamically
3904: $src=~s/\.ps$/\.eps/;
3905: my $temp_file;
1.267 albertel 3906: open(FILE,">>/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat");
1.256 albertel 3907: my $newsrc=$orig_src;
3908: $newsrc =~ s|(.*)/res/|/home/httpd/html/res/|;
1.275 foxr 3909: &Apache::lonxml::debug("queueing $newsrc for dynamic eps production.");
1.256 albertel 3910: print FILE "$newsrc\n";
1.261 foxr 3911: close FILE;
1.256 albertel 3912: $src=~s|/home/httpd/html/res|/home/httpd/prtspool|;
3913: $src=~s|/home/([^/]*)/public_html/|/home/httpd/prtspool/$1/|;
3914: }
3915: }
3916: }
3917: my ($path,$file)=($src=~m|(.*)/([^/]*)$|);
1.261 foxr 3918: &Apache::lonxml::debug("get_eps_image returning: $path / $file<BR />");
1.256 albertel 3919: return ($path.'/',$file);
3920: }
3921:
1.195 sakharuk 3922: sub eps_generation {
3923: my ($src,$file,$width_param) = @_;
1.267 albertel 3924: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat";
1.195 sakharuk 3925: my $temp_file = Apache::File->new('>>'.$filename);
3926: print $temp_file "$src\n";
3927: my $newsrc = $src;
3928: $newsrc =~ s/(\.gif|\.jpg|\.jpeg)$/\.eps/i;
3929: $newsrc=~s/\/home\/httpd\/html\/res//;
3930: $newsrc=~s/\/home\/([^\/]*)\/public_html\//\/$1\//;
3931: $newsrc=~s/\/\.\//\//;
3932: $newsrc=~s/\/([^\/]+)\.(ps|eps)/\//;
1.213 sakharuk 3933: if ($newsrc=~/\/home\/httpd\/lonUsers\//) {
3934: $newsrc=~s/\/home\/httpd\/lonUsers//;
3935: $newsrc=~s/\/([^\/]+)\/(\w)\/(\w)\/(\w)\//\/$1\//;
3936: }
1.239 sakharuk 3937: if ($newsrc=~/\/userfiles\//) {
3938: return ' \graphicspath{{'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
3939: } else {
3940: return ' \graphicspath{{/home/httpd/prtspool'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
3941: }
1.197 sakharuk 3942: }
3943:
3944: sub file_path {
3945: my $src=shift;
3946: my ($file,$path);
3947: if ($src =~ m!(.*)/([^/]*)$!) {
3948: $file = $2;
3949: $path = $1.'/';
3950: }
3951: return $file,$path;
1.126 sakharuk 3952: }
3953:
3954: sub recalc {
3955: my $argument = shift;
3956: if (not $argument=~/(mm|cm|in|pc|pt)/) {return $argument.' mm';}
1.132 sakharuk 3957: $argument=~/\s*(\d+\.?\d*)\s*(mm|cm|in|pc|pt)/;
1.126 sakharuk 3958: my $value=$1;
3959: my $units=$2;
3960: if ($units eq 'cm') {
3961: $value*=10;
3962: } elsif ($units eq 'in') {
3963: $value*=25.4;
3964: } elsif ($units eq 'pc') {
3965: $value*=(25.4*12/72.27);
3966: } elsif ($units eq 'pt') {
3967: $value*=(25.4/72.27);
3968: }
3969: return $value.' mm';
1.94 sakharuk 3970: }
1.184 sakharuk 3971:
3972: sub LATEX_length {
3973: my $garbage=shift;
1.206 sakharuk 3974: $garbage=~s/^\s+$//;
3975: $garbage=~s/^\s+(\S.*)/$1/;#space before
3976: $garbage=~s/(.*\S)\s+$/$1/;#space after
3977: $garbage=~s/(\s)+/$1/;#only one space
3978: $garbage=~s/(\\begin{([^\}]+)}|\\end{([^\}]+)})//g;#remove LaTeX \begin{...} and \end{...}
3979: $garbage=~s/(\$\_\{|\$\_|\$\^{|\$\^|\}\$)//g;#remove $_{,$_,$^{,$^,}$
3980: $garbage=~s/([^\\])\$/$1/g;#$
3981: $garbage=~s/(\\ensuremath\{\_\{|\\ensuremath\{\_|\\ensuremath\{\^{|\\ensuremath\{\^|\})//g;#remove \ensuremath{...}
3982: $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 3983: $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;
3984: $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;
3985: $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 3986: $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;
3987: $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;
3988: $garbage=~s/(\\hat{([^}]+)}|\\check{([^}]+)}|\\dot{([^}]+)}|\\breve{([^}]+)}|\\acute{([^}]+)}|\\ddot{([^}]+)}|\\grave{([^}]+)}|\\tilde{([^}]+)}|\\mathring{([^}]+)}|\\bar{([^}]+)}|\\vec{([^}]+)})/$1/g;
3989: #remove some other LaTeX command
3990: $garbage=~s|\\(\w+)\\|\\|g;
3991: $garbage=~s|\\(\w+)(\s*)|$2|g;
3992: $garbage=~s|\+|11|g;
1.184 sakharuk 3993: my $value=length($garbage);
3994: return $value;
3995: }
3996:
3997:
3998:
1.94 sakharuk 3999:
1.1 sakharuk 4000: 1;
4001: __END__
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