Annotation of loncom/xml/londefdef.pm, revision 1.361
1.1 sakharuk 1: # The LearningOnline Network with CAPA
2: # Tags Default Definition Module
3: #
1.361 ! foxr 4: # $Id: londefdef.pm,v 1.360 2007/03/13 15:05:19 foxr Exp $
1.41 sakharuk 5: #
1.34 www 6: #
7: # Copyright Michigan State University Board of Trustees
8: #
9: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
10: #
11: # LON-CAPA is free software; you can redistribute it and/or modify
12: # it under the terms of the GNU General Public License as published by
13: # the Free Software Foundation; either version 2 of the License, or
14: # (at your option) any later version.
15: #
16: # LON-CAPA is distributed in the hope that it will be useful,
17: # but WITHOUT ANY WARRANTY; without even the implied warranty of
18: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19: # GNU General Public License for more details.
20: #
21: # You should have received a copy of the GNU General Public License
22: # along with LON-CAPA; if not, write to the Free Software
23: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24: #
25: # /home/httpd/html/adm/gpl.txt
26: #
27: # http://www.lon-capa.org/
1.156 sakharuk 28: ## Copyright for TtHfunc and TtMfunc by Ian Hutchinson.
1.34 www 29: # TtHfunc and TtMfunc (the "Code") may be compiled and linked into
30: # binary executable programs or libraries distributed by the
31: # Michigan State University (the "Licensee"), but any binaries so
32: # distributed are hereby licensed only for use in the context
33: # of a program or computational system for which the Licensee is the
34: # primary author or distributor, and which performs substantial
35: # additional tasks beyond the translation of (La)TeX into HTML.
36: # The C source of the Code may not be distributed by the Licensee
37: # to any other parties under any circumstances.
38: #
1.1 sakharuk 39:
1.2 albertel 40: package Apache::londefdef;
1.1 sakharuk 41:
1.267 albertel 42: use Apache::lonnet;
1.1 sakharuk 43: use strict;
1.124 sakharuk 44: use Apache::lonxml;
1.57 sakharuk 45: use Apache::File();
1.70 sakharuk 46: use Image::Magick;
1.118 www 47: use Apache::lonmenu();
48: use Apache::lonmeta();
1.187 albertel 49: use Apache::Constants qw(:common);
1.282 foxr 50: use File::Basename;
1.345 albertel 51: use LONCAPA();
1.302 foxr 52: # use Data::Dumper;
1.160 sakharuk 53:
1.38 harris41 54: BEGIN {
1.15 sakharuk 55:
1.135 sakharuk 56: &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 57:
1.188 albertel 58: }
59:
1.294 foxr 60: #
61: # Dumps all elements of the table structure.
62: # Need this 'cause evidently when given an array, Data::Dumper only seems
63: # to dump element 0.
64: #
1.302 foxr 65: #sub debug_dump_table {
66: # my $lastrow = $#Apache::londefdef::table;
67: # &Apache::lonnet::logthis("Dumping table: Last row index: $lastrow");
68: # my $row;
69: # for ($row =0; $row <= $lastrow; $row++ ) {
70: # my $text = Dumper($Apache::londefdef::table[$row]);
71: # &Apache::lonnet::logthis("table [ $row ]".$text);
72: # }
73: #}
1.188 albertel 74: sub initialize_londefdef {
75: $Apache::londefdef::TD_redirection=0;
76: @Apache::londefdef::table = ();
77: $Apache::londefdef::select=0;
1.243 albertel 78: undef(@Apache::londefdef::description);
79: @Apache::londefdef::DD=(0);
80: @Apache::londefdef::DT=(0);
1.244 albertel 81: @Apache::londefdef::seenDT=(0);
1.238 albertel 82: $Apache::londefdef::list_index=0;
1.327 albertel 83: undef($Apache::londefdef::head);
84: undef($Apache::londefdef::title);
1.3 sakharuk 85: }
1.1 sakharuk 86:
1.35 sakharuk 87: #======================= TAG SUBROUTINES =====================
1.8 sakharuk 88: #-- <output>
1.21 albertel 89: sub start_output {
1.122 albertel 90: my ($target) = @_;
91: if ($target eq 'meta') { $Apache::lonxml::metamode--; }
92: return '';
1.21 albertel 93: }
94: sub end_output {
1.122 albertel 95: my ($target) = @_;
96: if ($target eq 'meta') { $Apache::lonxml::metamode++; }
97: return '';
1.21 albertel 98: }
1.4 sakharuk 99: #-- <m> tag
1.33 albertel 100: sub start_m {
1.190 albertel 101: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 102: my $currentstring = '';
1.193 albertel 103: my $inside = &Apache::lonxml::get_all_text_unbalanced("/m",$parser);
1.191 albertel 104: if ($target eq 'web' || $target eq 'analyze') {
1.122 albertel 105: &Apache::lonxml::debug("M is starting with:$inside:");
106: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
107: if ($eval eq 'on') {
108: $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
109: #&Apache::lonxml::debug("M is evaulated to:$inside:");
110: }
1.317 albertel 111: my $tex = $inside;
1.276 albertel 112: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
113: $currentstring = &Apache::lontexconvert::converted(\$inside,$display);
1.122 albertel 114: if ($Apache::lontexconvert::errorstring) {
1.317 albertel 115: my $errormsg='<pre>'.&HTML::Entities::encode($Apache::lontexconvert::errorstring,'<>&"').'</pre> occured while attempting to convert this TeX: <pre>';
116: $tex = &HTML::Entities::encode($tex,'<>&"');
117: my ($linenumber) =
118: ($Apache::lontexconvert::errorstring =~ /Line (\d+)/);
119: if (defined($linenumber)) {
120: my @tex=split("\n",$tex);
121: $tex[$linenumber]='<b><font color="red">'.
122: $tex[$linenumber].'</font></b>';
123: $tex=join("\n",@tex);
124: }
125: &Apache::lonxml::warning($errormsg.$tex.'</pre>');
1.122 albertel 126: $Apache::lontexconvert::errorstring='';
127: }
128: #&Apache::lonxml::debug("M is ends with:$currentstring:");
1.178 albertel 129: $Apache::lonxml::post_evaluate=0;
1.122 albertel 130: } elsif ($target eq 'tex') {
1.360 foxr 131:
1.190 albertel 132: $currentstring = $inside;
1.178 albertel 133: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
134: if ($eval eq 'on') {
135: $currentstring=&Apache::run::evaluate($currentstring,$safeeval,$$parstack[-1]);
136: }
1.122 albertel 137: if ($currentstring=~/^(\s*\\\\\s*)*$/) {$currentstring = ' \vskip 0 mm ';}
1.257 albertel 138: # detect simple math mode entry exits, and convert them
1.360 foxr 139: # to use \ensuremath ... unless there's a \verb inside.
140: if (! ($currentstring=~/\\verb/)) {
141: if ($currentstring=~/^\s*\$[^\$].*[^\$]\$\s*$/) {
142: $currentstring=~s/^(\s*)\$/$1/;
143: $currentstring=~s/\$(\s*)$/$1/;
144: $currentstring='\ensuremath{'.$currentstring.'}';
145: }
1.257 albertel 146: }
1.178 albertel 147: $Apache::lonxml::post_evaluate=0;
1.122 albertel 148: }
149: return $currentstring;
1.33 albertel 150: }
1.122 albertel 151:
1.33 albertel 152: sub end_m {
1.122 albertel 153: my ($target,$token) = @_;
154: my $currentstring = '';
1.204 albertel 155: if ($target eq 'tex') {
1.122 albertel 156: $currentstring = "";
157: }
158: return $currentstring;
1.33 albertel 159: }
1.110 albertel 160:
161: sub start_tthoption {
1.299 albertel 162: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 163: my $result;
1.325 albertel 164: if ($target eq 'web' || $target eq 'webgrade') {
1.299 albertel 165: my $inside = &Apache::lonxml::get_all_text("/tthoption",$parser,
166: $style);
1.122 albertel 167: $inside=~s/^\s*//;
1.267 albertel 168: if ($env{'browser.mathml'}) {
1.122 albertel 169: &tth::ttmoptions($inside);
170: } else {
171: &tth::tthoptions($inside);
172: }
173: }
174: return $result;
1.110 albertel 175: }
176:
177: sub end_tthoption {
1.122 albertel 178: my ($target,$token) = @_;
179: my $result;
180: return $result;
1.110 albertel 181: }
182:
1.181 sakharuk 183: #-- <html> tag (end tag optional)
1.100 albertel 184: sub start_html {
185: my ($target,$token) = @_;
186: my $currentstring = '';
1.269 albertel 187: if ($target eq 'web' || $target eq 'edit' || $target eq 'webgrade' ) {
1.327 albertel 188: # start_body() takes care of emitting the <html>
1.100 albertel 189: } elsif ($target eq 'tex') {
1.331 albertel 190: $currentstring .=
191: '\documentclass[letterpaper,twoside]{article}\raggedbottom';
1.267 albertel 192: if (($env{'form.latex_type'}=~'batchmode') ||
193: (!$env{'request.role.adv'})) {$currentstring .='\batchmode';}
1.217 sakharuk 194: $currentstring .= '\newcommand{\keephidden}[1]{}'.
195: '\renewcommand{\deg}{$^{\circ}$}'.
1.306 foxr 196: '\usepackage{multirow}'.
1.217 sakharuk 197: '\usepackage{longtable}'.
198: '\usepackage{textcomp}'.
199: '\usepackage{makeidx}'.
200: '\usepackage[dvips]{graphicx}'.
1.286 foxr 201: '\usepackage{wrapfig}'.
1.248 foxr 202: '\usepackage{picins}'.
1.217 sakharuk 203: '\usepackage{epsfig}'.
204: '\usepackage{calc}'.
205: '\usepackage{amsmath}'.
206: '\usepackage{amssymb}'.
207: '\usepackage{amsfonts}'.
208: '\usepackage{amsthm}'.
209: '\usepackage{amscd}'.
210: '\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}}'.
211: '\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 212: }
213: return $currentstring;
214: }
1.122 albertel 215:
216: sub end_html {
1.232 sakharuk 217: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 218: my $currentstring = '';
1.324 albertel 219: if ($target eq 'web' || $target eq 'webgrade') {
1.327 albertel 220: # end_body takes care of the </html>
1.122 albertel 221: }
222: return $currentstring;
223: }
224:
1.181 sakharuk 225: #-- <head> tag (end tag optional)
1.122 albertel 226: sub start_head {
227: my ($target,$token) = @_;
228: my $currentstring = '';
1.324 albertel 229: if ($target eq 'web' || $target eq 'webgrade') {
1.327 albertel 230: &Apache::lonxml::startredirection();
1.122 albertel 231: }
232: return $currentstring;
233: }
234:
235: sub end_head {
236: my ($target,$token) = @_;
237: my $currentstring = '';
1.324 albertel 238: if (($target eq 'web' && $env{'request.state'} eq 'published') ||
239: ($target eq 'webgrade' && $env{'request.state'} eq 'published')) {
1.327 albertel 240: # in case there is a </head> but no <head>
241: if ($Apache::lonxml::redirection) {
242: $Apache::londefdef::head = &Apache::lonxml::endredirection();
243: }
1.122 albertel 244: }
245: return $currentstring;
246: }
247:
1.181 sakharuk 248: #-- <map> tag (end tag required)
1.122 albertel 249: sub start_map {
250: my ($target,$token) = @_;
251: my $currentstring = '';
1.325 albertel 252: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 253: $currentstring = $token->[4];
254: }
255: return $currentstring;
256: }
257:
258: sub end_map {
259: my ($target,$token) = @_;
260: my $currentstring = '';
1.325 albertel 261: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 262: $currentstring = $token->[2];
263: }
264: return $currentstring;
265: }
266:
1.181 sakharuk 267: #-- <select> tag (end tag required)
1.122 albertel 268: sub start_select {
269: my ($target,$token) = @_;
270: my $currentstring = '';
1.325 albertel 271: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 272: $currentstring = $token->[4];
1.181 sakharuk 273: } elsif ($target eq 'tex') {
274: $Apache::londefdef::select=0;
275: }
1.122 albertel 276: return $currentstring;
277: }
278:
279: sub end_select {
280: my ($target,$token) = @_;
281: my $currentstring = '';
1.325 albertel 282: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 283: $currentstring = $token->[2];
284: }
285: return $currentstring;
286: }
287:
1.181 sakharuk 288: #-- <option> tag (end tag optional)
1.122 albertel 289: sub start_option {
1.181 sakharuk 290: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 291: my $currentstring = '';
1.325 albertel 292: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 293: $currentstring = $token->[4];
1.181 sakharuk 294: } elsif ($target eq 'tex') {
295: $Apache::londefdef::select++;
296: if ($Apache::londefdef::select == 1) {
297: $currentstring='\noindent\fbox{'.&Apache::lonxml::get_param('value',$parstack,$safeeval).'}\keephidden{';
298: } else {
299: $currentstring='\keephidden{';
300: }
301: }
1.122 albertel 302: return $currentstring;
303: }
304:
305: sub end_option {
306: my ($target,$token) = @_;
307: my $currentstring = '';
1.325 albertel 308: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 309: $currentstring = $token->[2];
1.181 sakharuk 310: } elsif ($target eq 'tex') {
311: $currentstring='}';
312: }
1.122 albertel 313: return $currentstring;
314: }
315:
1.181 sakharuk 316: #-- <input> tag (end tag forbidden)
1.122 albertel 317: sub start_input {
318: my ($target,$token) = @_;
319: my $currentstring = '';
1.325 albertel 320: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 321: $currentstring = $token->[4];
322: }
323: return $currentstring;
324: }
325:
326: sub end_input {
327: my ($target,$token) = @_;
328: my $currentstring = '';
1.325 albertel 329: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 330: $currentstring = $token->[2];
331: }
332: return $currentstring;
333: }
334:
1.181 sakharuk 335: #-- <textarea> tag (end tag required)
1.122 albertel 336: sub start_textarea {
337: my ($target,$token) = @_;
338: my $currentstring = '';
1.325 albertel 339: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 340: $currentstring = $token->[4];
341: }
342: return $currentstring;
343: }
344:
345: sub end_textarea {
346: my ($target,$token) = @_;
347: my $currentstring = '';
1.325 albertel 348: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 349: $currentstring = $token->[2];
350: }
351: return $currentstring;
352: }
353:
1.181 sakharuk 354: #-- <form> tag (end tag required)
1.122 albertel 355: sub start_form {
356: my ($target,$token) = @_;
357: my $currentstring = '';
1.325 albertel 358: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 359: $currentstring = $token->[4];
360: }
361: return $currentstring;
362: }
363:
364: sub end_form {
365: my ($target,$token) = @_;
366: my $currentstring = '';
1.325 albertel 367: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 368: $currentstring = $token->[2];
369: }
370: return $currentstring;
371: }
372:
1.181 sakharuk 373: #-- <title> tag (end tag required)
1.122 albertel 374: sub start_title {
1.327 albertel 375: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 376: my $currentstring = '';
1.324 albertel 377: if ($target eq 'web' || $target eq 'webgrade') {
1.327 albertel 378: $Apache::londefdef::title =
379: &Apache::lonxml::get_all_text('/title',$parser,$style);
1.122 albertel 380: } elsif ($target eq 'tex') {
1.166 sakharuk 381: $currentstring .= '\keephidden{Title of the document: '
1.122 albertel 382: }
383: if ($target eq 'meta') {
384: $currentstring='<title>';
1.185 albertel 385: &start_output($target);
1.122 albertel 386: }
387: return $currentstring;
388: }
389:
390: sub end_title {
391: my ($target,$token) = @_;
392: my $currentstring = '';
1.324 albertel 393: if ($target eq 'web' || $target eq 'webgrade') {
1.327 albertel 394: # start_title takes care of swallowing the title
1.122 albertel 395: } elsif ($target eq 'tex') {
396: $currentstring .= '}';
397: }
398: if ($target eq 'meta') {
1.185 albertel 399: &end_output($target);
1.122 albertel 400: $currentstring='</title>';
401: }
402: return $currentstring;
403: }
404:
1.181 sakharuk 405: #-- <meta> tag (end tag forbidden)
1.122 albertel 406: sub start_meta {
1.299 albertel 407: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 408: my $currentstring = '';
1.325 albertel 409: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 410: my $args='';
411: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
412: if ($args eq '') {
1.299 albertel 413: &Apache::lonxml::get_all_text("/meta",$parser,$style);
1.122 albertel 414: } else {
415: $currentstring = $token->[4];
1.1 sakharuk 416: }
1.135 sakharuk 417: } elsif ($target eq 'meta') {
1.122 albertel 418: unless (&Apache::lonxml::get_param
419: ('http-equiv',$parstack,$safeeval,undef,1)) {
420: my $name=$token->[2]->{'name'};
421: $name=~tr/A-Z/a-z/;
422: $name=~s/\s/\_/gs;
423: $name=~s/\W//gs;
424: if ($name) {
1.154 www 425: $currentstring='<'.$name;
426: my $display=&Apache::lonxml::get_param
427: ('display',$parstack,$safeeval,undef,1);
428: if ($display) {
429: $display=~s/\"/\'/g;
430: $currentstring.=' display="'.$display.'"';
431: }
432: $currentstring.='>'.
1.122 albertel 433: &Apache::lonxml::get_param
434: ('content',$parstack,$safeeval,undef,1).
1.135 sakharuk 435: '</'.$name.'>';
1.1 sakharuk 436: }
1.154 www 437: my $display=&Apache::lonxml::get_param
438: ('display',$parstack,$safeeval,undef,1);
439: if ($display) {
1.204 albertel 440: $display=&HTML::Entities::encode($display,'<>&"');
1.154 www 441: $currentstring.='<'.$name.'.display>'.$display.
442: '</'.$name.'.display>';
443: }
1.1 sakharuk 444: }
1.135 sakharuk 445: } elsif ($target eq 'tex') {
1.151 sakharuk 446: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
447: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
448: if ((not defined $content) && (not defined $name)) {
449: &Apache::lonxml::startredirection();
450: }
1.122 albertel 451: }
452: return $currentstring;
453: }
454:
455: sub end_meta {
1.165 albertel 456: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 457: my $currentstring = '';
1.325 albertel 458: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 459: my $args='';
460: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
461: if ($args ne '') {
1.121 www 462: $currentstring = $token->[4];
1.122 albertel 463: }
1.135 sakharuk 464: } elsif ($target eq 'tex') {
1.165 albertel 465: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
466: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
1.164 albertel 467: if ((not defined $content) && (not defined $name)) {
1.169 albertel 468: &Apache::lonxml::endredirection();
1.164 albertel 469: }
1.135 sakharuk 470: }
1.122 albertel 471: return $currentstring;
472: }
473:
1.121 www 474: # accessrule
1.122 albertel 475: sub start_accessrule {
1.299 albertel 476: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 477: my $currentstring = '';
478: my $eff=&Apache::lonxml::get_param
479: ('effect',$parstack,$safeeval,undef,1);
480: my $realm=&Apache::lonxml::get_param
481: ('realm',$parstack,$safeeval,undef,1);
1.123 www 482: my $role=&Apache::lonxml::get_param
483: ('role',$parstack,$safeeval,undef,1);
484: $realm=~s/\s+//g;
485: $realm=~s/\//\_/g;
486: $realm=~s/^\_//;
487: $realm=~s/\W/\;/g;
488: $role=~s/\s+//g;
489: $role=~s/\//\_/g;
490: $role=~s/\W/\;/g;
1.122 albertel 491: if ($target eq 'web') {
492: my $args='';
493: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
494: if ($args eq '') {
1.299 albertel 495: &Apache::lonxml::get_all_text("/accessrule",$parser,$style);
1.122 albertel 496: } else {
497: $currentstring = $token->[4];
498: }
499: }
500: if ($target eq 'meta') {
1.123 www 501: $currentstring='<rule>'.$eff.':'.$realm.':'.$role.'</rule>';
1.122 albertel 502: }
503: return $currentstring;
504: }
505:
506: sub end_accessrule {
507: my ($target,$token,$tagstack,$parstack,$parser) = @_;
508: my $currentstring = '';
509: if ($target eq 'web') {
510: my $args='';
511: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
512: if ($args ne '') {
513: $currentstring = $token->[4];
514: }
515: }
516: return $currentstring;
517: }
518:
1.181 sakharuk 519: #-- <body> tag (end tag required)
1.122 albertel 520: sub start_body {
521: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
522: my $currentstring = '';
1.244 albertel 523:
1.324 albertel 524: if ($target eq 'web' || $target eq 'webgrade') {
1.170 albertel 525: if ($Apache::lonhomework::parsing_a_problem) {
526: &Apache::lonxml::warning("<body> tag found inside of <problem> tag this can cause problems.");
527: return '';
528: }
1.122 albertel 529:
1.327 albertel 530: if (&is_inside_of($tagstack, "head")) {
531: &end_head(@_);
1.122 albertel 532: }
1.327 albertel 533: $currentstring =
534: &Apache::loncommon::start_page($Apache::londefdef::title,
535: $Apache::londefdef::head,
536: {'add_entries' => $token->[2],
537: 'no_title' => 1,
538: 'force_register' => 1});
539:
1.267 albertel 540: if ($env{'request.state'} ne 'published') {
1.330 albertel 541: $currentstring.=&Apache::lonmenu::constspaceform();
1.122 albertel 542: $currentstring.=(<<EDITBUTTON);
1.278 www 543: <form method="post">
544: <input type="submit" name="editmode" accesskey="e" value="Edit" />
545: </form>
1.327 albertel 546: <br />
1.40 albertel 547: EDITBUTTON
1.1 sakharuk 548: }
1.201 albertel 549: $currentstring.=&Apache::lonxml::message_location();
1.122 albertel 550: } elsif ($target eq 'tex') {
551: $currentstring = '\begin{document}';
552: }
553: return $currentstring;
554: }
555:
556: sub end_body {
1.259 albertel 557: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 558: my $currentstring = &end_p(); # Close off unclosed <p>
1.324 albertel 559: if ($target eq 'web' || $target eq 'webgrade') {
1.327 albertel 560: $currentstring .= &Apache::loncommon::end_page({'discussion' => 1});
1.122 albertel 561: } elsif ($target eq 'tex') {
1.277 foxr 562: $currentstring .= '\strut\newline\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\newline\noindent \end{document}';
1.122 albertel 563: }
564: return $currentstring;
565: }
566:
1.309 albertel 567: # \begin{center} causes a new paragprah spacing that looks odd inside
1.337 foxr 568: # of a table cell. Same at the end of a \center but with a slightly
569: # larger space .. hence center_correction and center_end_correction.
570: #
571: sub center_correction { return '\vspace*{-6 mm}'; }
572: sub center_end_correction { return '\vspace*{-7 mm}'; }
573:
1.181 sakharuk 574: #-- <center> tag (end tag required)
1.122 albertel 575: sub start_center {
1.309 albertel 576: my ($target,$token,$tagstack) = @_;
1.279 foxr 577: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 578: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 579: $currentstring .= $token->[4];
1.122 albertel 580: } elsif ($target eq 'tex') {
1.309 albertel 581: if (&is_inside_of($tagstack, "table")) {
582: $currentstring .= ¢er_correction();
583: }
1.277 foxr 584: $currentstring .= '\begin{center}';
1.144 sakharuk 585: }
1.122 albertel 586: return $currentstring;
587: }
588:
589: sub end_center {
1.309 albertel 590: my ($target,$token,$tagstack) = @_;
1.122 albertel 591: my $currentstring = '';
1.325 albertel 592: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 593: $currentstring = $token->[2];
594: } elsif ($target eq 'tex') {
595: $currentstring = '\end{center}';
1.337 foxr 596: if (&is_inside_of($tagstack, "table")) {
597: $currentstring .= ¢er_end_correction();
598: }
1.144 sakharuk 599: }
1.122 albertel 600: return $currentstring;
601: }
602:
1.181 sakharuk 603: #-- <b> tag (end tag required)
1.279 foxr 604: # NOTE: In TeX mode disables internal <p>
1.122 albertel 605: sub start_b {
606: my ($target,$token) = @_;
607: my $currentstring = '';
1.325 albertel 608: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 609: $currentstring = $token->[4];
610: } elsif ($target eq 'tex') {
1.279 foxr 611: &disable_para();
612: $currentstring .= '\textbf{';
1.122 albertel 613: }
614: return $currentstring;
615: }
616:
617: sub end_b {
618: my ($target,$token) = @_;
619: my $currentstring = '';
1.325 albertel 620: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 621: $currentstring = $token->[2];
622: } elsif ($target eq 'tex') {
1.279 foxr 623: &enable_para();
624: $currentstring = '}';
1.122 albertel 625: }
626: return $currentstring;
627: }
1.35 sakharuk 628:
1.181 sakharuk 629: #-- <strong> tag (end tag required)
1.279 foxr 630: # NOTE: in TeX mode disables internal <p>
1.122 albertel 631: sub start_strong {
632: my ($target,$token) = @_;
633: my $currentstring = '';
1.325 albertel 634: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 635: $currentstring = $token->[4];
636: } elsif ($target eq 'tex') {
1.279 foxr 637: &disable_para();
1.122 albertel 638: $currentstring = '\textbf{';
639: }
640: return $currentstring;
641: }
642:
643: sub end_strong {
644: my ($target,$token) = @_;
645: my $currentstring = '';
1.325 albertel 646: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 647: $currentstring = $token->[2];
648: } elsif ($target eq 'tex') {
1.279 foxr 649: &enable_para();
1.122 albertel 650: $currentstring = '}';
1.144 sakharuk 651: }
1.122 albertel 652: return $currentstring;
653: }
654:
1.181 sakharuk 655: #-- <h1> tag (end tag required)
1.122 albertel 656: sub start_h1 {
1.125 sakharuk 657: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 658: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 659: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 660: $currentstring .= $token->[4];
661: } elsif ($target eq 'tex') {
1.125 sakharuk 662: my $pre;
1.199 albertel 663: my $align=lc(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1));
1.212 sakharuk 664: if ($align eq 'center') {
1.125 sakharuk 665: $pre='\begin{center}';
666: } elsif ($align eq 'left') {
667: $pre='\rlap{';
668: } elsif ($align eq 'right') {
669: $pre=' \hfill \llap{';
670: }
671: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
672: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 673: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 674: } elsif ($target eq 'meta') {
1.277 foxr 675: $currentstring.='<subject>';
1.185 albertel 676: &start_output($target);
1.122 albertel 677: }
678: return $currentstring;
679: }
680:
681: sub end_h1 {
1.125 sakharuk 682: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 683: my $currentstring = '';
1.325 albertel 684: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 685: $currentstring .= $token->[2];
686: } elsif ($target eq 'tex') {
1.212 sakharuk 687: my $post='\vskip 0 mm ';
1.125 sakharuk 688: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 689: if ($align eq 'center') {
1.125 sakharuk 690: $post='\end{center}';
691: } elsif ($align eq 'left') {
692: $post='} \hfill'.'\vskip 0 mm ';
693: } elsif ($align eq 'right') {
694: $post='}'.'\vskip 0 mm ';
695: }
696: $currentstring .= '}}'.$post;
1.122 albertel 697: } elsif ($target eq 'meta') {
1.185 albertel 698: &end_output($target);
1.122 albertel 699: $currentstring='</subject>';
700: }
701: return $currentstring;
702: }
703:
1.35 sakharuk 704: #-- <h2> tag
1.122 albertel 705: sub start_h2 {
1.125 sakharuk 706: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 707: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 708: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 709: $currentstring .= $token->[4];
710: } elsif ($target eq 'tex') {
1.125 sakharuk 711: my $pre;
712: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 713: if ($align eq 'center') {
1.125 sakharuk 714: $pre='\begin{center}';
715: } elsif ($align eq 'left') {
716: $pre='\rlap{';
717: } elsif ($align eq 'right') {
718: $pre=' \hfill \llap{';
719: }
720: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
721: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 722: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 723: }
724: return $currentstring;
725: }
726:
727: sub end_h2 {
1.125 sakharuk 728: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 729: my $currentstring = '';
1.325 albertel 730: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 731: $currentstring .= $token->[2];
732: } elsif ($target eq 'tex') {
1.212 sakharuk 733: my $post='\vskip 0 mm ';
1.125 sakharuk 734: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 735: if ($align eq 'center') {
1.125 sakharuk 736: $post='\end{center}';
737: } elsif ($align eq 'left') {
738: $post='} \hfill'.'\vskip 0 mm ';
739: } elsif ($align eq 'right') {
740: $post='}'.'\vskip 0 mm ';
741: }
742: $currentstring .= '}}'.$post;
1.122 albertel 743: }
744: return $currentstring;
745: }
746:
1.35 sakharuk 747: #-- <h3> tag
1.122 albertel 748: sub start_h3 {
1.125 sakharuk 749: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 750: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 751: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 752: $currentstring .= $token->[4];
753: } elsif ($target eq 'tex') {
1.125 sakharuk 754: my $pre;
755: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 756: if ($align eq 'center') {
1.125 sakharuk 757: $pre='\begin{center}';
758: } elsif ($align eq 'left') {
759: $pre='\rlap{';
760: } elsif ($align eq 'right') {
761: $pre=' \hfill \llap{';
762: }
763: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
764: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 765: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 766: }
767: return $currentstring;
768: }
769:
770: sub end_h3 {
1.125 sakharuk 771: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 772: my $currentstring = '';
1.325 albertel 773: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 774: $currentstring .= $token->[2];
775: } elsif ($target eq 'tex') {
1.212 sakharuk 776: my $post='\vskip 0 mm ';
1.125 sakharuk 777: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 778: if ($align eq 'center') {
1.125 sakharuk 779: $post='\end{center}';
780: } elsif ($align eq 'left') {
781: $post='} \hfill'.'\vskip 0 mm ';
782: } elsif ($align eq 'right') {
783: $post='}'.'\vskip 0 mm ';
784: }
785: $currentstring .= '}}'.$post;
1.122 albertel 786: }
787: return $currentstring;
788: }
789:
1.35 sakharuk 790: #-- <h4> tag
1.122 albertel 791: sub start_h4 {
1.125 sakharuk 792: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 793: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 794: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 795: $currentstring .= $token->[4];
796: } elsif ($target eq 'tex') {
1.125 sakharuk 797: my $pre;
798: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 799: if ($align eq 'center') {
1.125 sakharuk 800: $pre='\begin{center}';
801: } elsif ($align eq 'left') {
802: $pre='\rlap{';
803: } elsif ($align eq 'right') {
804: $pre=' \hfill \llap{';
805: }
806: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
807: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 808: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 809: }
810: return $currentstring;
811: }
812:
813: sub end_h4 {
1.125 sakharuk 814: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 815: my $currentstring = '';
1.325 albertel 816: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 817: $currentstring .= $token->[2];
818: } elsif ($target eq 'tex') {
1.212 sakharuk 819: my $post='\vskip 0 mm ';
1.125 sakharuk 820: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 821: if ($align eq 'center') {
1.125 sakharuk 822: $post='\end{center}';
823: } elsif ($align eq 'left') {
824: $post='} \hfill'.'\vskip 0 mm ';
825: } elsif ($align eq 'right') {
826: $post='}'.'\vskip 0 mm ';
827: }
828: $currentstring .= '}}'.$post;
1.122 albertel 829: }
830: return $currentstring;
831: }
832:
1.35 sakharuk 833: #-- <h5> tag
1.122 albertel 834: sub start_h5 {
1.125 sakharuk 835: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 836: my $currentstring = &end_p(); # Close off any prior paras.
1.325 albertel 837: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 838: $currentstring .= $token->[4];
839: } elsif ($target eq 'tex') {
1.125 sakharuk 840: my $pre;
841: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 842: if ($align eq 'center') {
1.125 sakharuk 843: $pre='\begin{center}';
844: } elsif ($align eq 'left') {
845: $pre='\rlap{';
846: } elsif ($align eq 'right') {
847: $pre=' \hfill \llap{';
848: }
849: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
850: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 851: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 852: }
853: return $currentstring;
854: }
855:
856: sub end_h5 {
1.125 sakharuk 857: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 858: my $currentstring = '';
1.325 albertel 859: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 860: $currentstring .= $token->[2];
861: } elsif ($target eq 'tex') {
1.212 sakharuk 862: my $post='\vskip 0 mm ';
1.125 sakharuk 863: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 864: if ($align eq 'center') {
1.125 sakharuk 865: $post='\end{center}';
866: } elsif ($align eq 'left') {
867: $post='} \hfill'.'\vskip 0 mm ';
868: } elsif ($align eq 'right') {
869: $post='}'.'\vskip 0 mm ';
870: }
871: $currentstring .= '}}'.$post;
1.122 albertel 872: }
873: return $currentstring;
874: }
875:
1.35 sakharuk 876: #-- <h6> tag
1.122 albertel 877: sub start_h6 {
1.125 sakharuk 878: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 879: my $currentstring = &end_p(); # Close off any prior paras.
1.325 albertel 880: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 881: $currentstring .= $token->[4];
882: } elsif ($target eq 'tex') {
1.125 sakharuk 883: my $pre;
884: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 885: if ($align eq 'center') {
1.125 sakharuk 886: $pre='\begin{center}';
887: } elsif ($align eq 'left') {
888: $pre='\rlap{';
889: } elsif ($align eq 'right') {
890: $pre=' \hfill \llap{';
891: }
892: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
893: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 894: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 895: }
896: return $currentstring;
897: }
898:
899: sub end_h6 {
1.125 sakharuk 900: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 901: my $currentstring = '';
1.325 albertel 902: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 903: $currentstring .= $token->[2];
904: } elsif ($target eq 'tex') {
1.212 sakharuk 905: my $post='\vskip 0 mm ';
1.125 sakharuk 906: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 907: if ($align eq 'center') {
1.125 sakharuk 908: $post='\end{center}';
909: } elsif ($align eq 'left') {
910: $post='} \hfill'.'\vskip 0 mm ';
911: } elsif ($align eq 'right') {
912: $post='}'.'\vskip 0 mm ';
913: }
914: $currentstring .= '}}'.$post;
1.122 albertel 915: }
916: return $currentstring;
917: }
918:
1.181 sakharuk 919: #--- <cite> tag (end tag required)
1.122 albertel 920: sub start_cite {
921: my ($target,$token) = @_;
922: my $currentstring = '';
1.325 albertel 923: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 924: $currentstring .= $token->[4];
925: } elsif ($target eq 'tex') {
1.179 sakharuk 926: $currentstring .= '\textit{';
1.144 sakharuk 927: }
1.122 albertel 928: return $currentstring;
929: }
930:
931: sub end_cite {
932: my ($target,$token) = @_;
933: my $currentstring = '';
1.325 albertel 934: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 935: $currentstring .= $token->[2];
936: } elsif ($target eq 'tex') {
1.179 sakharuk 937: $currentstring .= '}';
1.144 sakharuk 938: }
1.122 albertel 939: return $currentstring;
940: }
941:
1.181 sakharuk 942: #-- <i> tag (end tag required)
1.122 albertel 943: sub start_i {
944: my ($target,$token) = @_;
945: my $currentstring = '';
1.325 albertel 946: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 947: $currentstring .= $token->[4];
948: } elsif ($target eq 'tex') {
949: $currentstring .= '\textit{';
1.144 sakharuk 950: }
1.122 albertel 951: return $currentstring;
952: }
953:
954: sub end_i {
955: my ($target,$token) = @_;
956: my $currentstring = '';
1.325 albertel 957: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 958: $currentstring .= $token->[2];
959: } elsif ($target eq 'tex') {
960: $currentstring .= '}';
961: }
962: return $currentstring;
963: }
964:
1.181 sakharuk 965: #-- <address> tag (end tag required)
1.122 albertel 966: sub start_address {
967: my ($target,$token) = @_;
968: my $currentstring = '';
1.325 albertel 969: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 970: $currentstring .= $token->[4];
971: } elsif ($target eq 'tex') {
1.179 sakharuk 972: $currentstring .= '\textit{';
1.144 sakharuk 973: }
1.122 albertel 974: return $currentstring;
975: }
976:
977: sub end_address {
978: my ($target,$token) = @_;
979: my $currentstring = '';
1.325 albertel 980: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 981: $currentstring .= $token->[2];
982: } elsif ($target eq 'tex') {
1.179 sakharuk 983: $currentstring .= '}';
1.122 albertel 984: }
985: return $currentstring;
986: }
987:
1.181 sakharuk 988: #-- <dfn> tag (end tag required)
1.122 albertel 989: sub start_dfn {
990: my ($target,$token) = @_;
991: my $currentstring = '';
1.325 albertel 992: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 993: $currentstring .= $token->[4];
994: } elsif ($target eq 'tex') {
1.179 sakharuk 995: $currentstring .= '\textit{';
1.122 albertel 996: }
997: return $currentstring;
998: }
999:
1000: sub end_dfn {
1001: my ($target,$token) = @_;
1002: my $currentstring = '';
1.325 albertel 1003: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1004: $currentstring .= $token->[2];
1005: } elsif ($target eq 'tex') {
1.179 sakharuk 1006: $currentstring .= '}';
1.144 sakharuk 1007: }
1.122 albertel 1008: return $currentstring;
1009: }
1010:
1.181 sakharuk 1011: #-- <tt> tag (end tag required)
1.122 albertel 1012: sub start_tt {
1013: my ($target,$token) = @_;
1014: my $currentstring = '';
1.325 albertel 1015: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1016: $currentstring .= $token->[4];
1017: } elsif ($target eq 'tex') {
1018: $currentstring .= '\texttt{';
1.144 sakharuk 1019: }
1.122 albertel 1020: return $currentstring;
1021: }
1022:
1023: sub end_tt {
1024: my ($target,$token) = @_;
1025: my $currentstring = '';
1.325 albertel 1026: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1027: $currentstring .= $token->[2];
1028: } elsif ($target eq 'tex') {
1029: $currentstring .= '}';
1030: }
1031: return $currentstring;
1032: }
1033:
1.181 sakharuk 1034: #-- <kbd> tag (end tag required)
1.122 albertel 1035: sub start_kbd {
1036: my ($target,$token) = @_;
1037: my $currentstring = '';
1.325 albertel 1038: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1039: $currentstring .= $token->[4];
1040: } elsif ($target eq 'tex') {
1.179 sakharuk 1041: $currentstring .= '\texttt{';
1.144 sakharuk 1042: }
1.122 albertel 1043: return $currentstring;
1044: }
1045:
1046: sub end_kbd {
1047: my ($target,$token) = @_;
1048: my $currentstring = '';
1.325 albertel 1049: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1050: $currentstring .= $token->[2];
1051: } elsif ($target eq 'tex') {
1.179 sakharuk 1052: $currentstring .= '}';
1.144 sakharuk 1053: }
1.122 albertel 1054: return $currentstring;
1055: }
1056:
1.181 sakharuk 1057: #-- <code> tag (end tag required)
1.122 albertel 1058: sub start_code {
1059: my ($target,$token) = @_;
1060: my $currentstring = '';
1.325 albertel 1061: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1062: $currentstring .= $token->[4];
1063: } elsif ($target eq 'tex') {
1064: $currentstring .= '\texttt{';
1065: }
1066: return $currentstring;
1067: }
1068:
1069: sub end_code {
1070: my ($target,$token) = @_;
1071: my $currentstring = '';
1.325 albertel 1072: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1073: $currentstring .= $token->[2];
1074: } elsif ($target eq 'tex') {
1075: $currentstring .= '}';
1076: }
1077: return $currentstring;
1078: }
1079:
1.181 sakharuk 1080: #-- <em> tag (end tag required)
1.122 albertel 1081: sub start_em {
1082: my ($target,$token) = @_;
1083: my $currentstring = '';
1.325 albertel 1084: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1085: $currentstring .= $token->[4];
1086: } elsif ($target eq 'tex') {
1087: $currentstring .= '\emph{';
1.144 sakharuk 1088: }
1.122 albertel 1089: return $currentstring;
1090: }
1091:
1092: sub end_em {
1093: my ($target,$token) = @_;
1094: my $currentstring = '';
1.325 albertel 1095: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1096: $currentstring .= $token->[2];
1097: } elsif ($target eq 'tex') {
1098: $currentstring .= '}';
1.144 sakharuk 1099: }
1.122 albertel 1100: return $currentstring;
1101: }
1102:
1.181 sakharuk 1103: #-- <q> tag (end tag required)
1.122 albertel 1104: sub start_q {
1105: my ($target,$token) = @_;
1106: my $currentstring = '';
1.325 albertel 1107: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1108: $currentstring .= $token->[4];
1109: } elsif ($target eq 'tex') {
1.179 sakharuk 1110: $currentstring .= '\emph{';
1.122 albertel 1111: }
1112: return $currentstring;
1113: }
1114:
1115: sub end_q {
1116: my ($target,$token) = @_;
1117: my $currentstring = '';
1.325 albertel 1118: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1119: $currentstring .= $token->[2];
1120: } elsif ($target eq 'tex') {
1.179 sakharuk 1121: $currentstring .= '}';
1.144 sakharuk 1122: }
1.122 albertel 1123: return $currentstring;
1124: }
1125:
1.277 foxr 1126: # <p> is a bit strange since it does not require a closing </p>
1127: # However in latex, we must often output closing stuff to end
1128: # environments and {}'s etc. Therefore we do all the work
1129: # of figuring out the ending strings in the start tag processing,
1130: # and provide a mechanism to output the stop text external
1131: # to tag processing.
1132: #
1133: {
1134:
1135: my $closing_string = ''; # String required to close <p>
1136:
1.279 foxr 1137: # Some tags are <p> fragile meaning that <p> inside of them
1138: # does not work within TeX mode. This is managed via the
1139: # counter below:
1140: #
1141:
1142: my $para_disabled = 0;
1143:
1144: sub disable_para {
1145: $para_disabled++;
1146: }
1147: sub enable_para {
1148: $para_disabled--;
1149: }
1150:
1151:
1.181 sakharuk 1152: #-- <p> tag (end tag optional)
1.198 sakharuk 1153: #optional attribute - align="center|left|right"
1.122 albertel 1154: sub start_p {
1.157 sakharuk 1155: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1156: my $currentstring = '';
1.325 albertel 1157: if ($target eq 'web' || $target eq 'webgrade') {
1.279 foxr 1158: $currentstring .= &end_p(); # close off prior para if in progress.
1.122 albertel 1159: $currentstring .= $token->[4];
1.279 foxr 1160: if (! ($currentstring =~ /\//)) {
1161: $closing_string = '</p>'; # Deal correctly with <p /> e.g.
1162: }
1163: } elsif ($target eq 'tex' && !$para_disabled) {
1.313 foxr 1164:
1.279 foxr 1165: $currentstring .= &end_p(); # close off prior para if in progress.
1.198 sakharuk 1166: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1167: if ($align eq 'center') {
1.333 albertel 1168: $currentstring .='\begin{center}\par ';
1.277 foxr 1169: $closing_string = '\end{center}';
1.309 albertel 1170: if (&is_inside_of($tagstack, "table")) {
1171: $currentstring = ¢er_correction().$currentstring;
1172: }
1.198 sakharuk 1173: } elsif ($align eq 'right') {
1.323 foxr 1174: $currentstring.="\n".'{\flushright ';
1175: # $currentstring.='\makebox['.$env{'form.textwidth'}.']{\hfill\llap{';
1176: $closing_string= "}\n";
1.198 sakharuk 1177: } elsif ($align eq 'left') {
1.323 foxr 1178: $currentstring.= "\n".'{\flushleft ';
1179: # $currentstring.='\noindent\makebox['.$env{'form.textwidth'}.']{{';
1180: $closing_string = "}\n";
1.216 matthew 1181: } else {
1.277 foxr 1182: $currentstring.='\par ';
1.313 foxr 1183: if (&is_inside_of($tagstack, 'table')) {
1.315 foxr 1184: $closing_string = '\vskip 0pt'; # Seems to be consistent with <p> in tables.
1.313 foxr 1185: } else {
1186: $closing_string = '\strut\\\\\strut ';
1187: }
1.216 matthew 1188: }
1.277 foxr 1189:
1.144 sakharuk 1190: }
1.122 albertel 1191: return $currentstring;
1192: }
1.277 foxr 1193: #
1194: # End paragraph processing just requires that we output the
1195: # closing string that was saved and blank it.
1196: sub end_p {
1.279 foxr 1197: # Note only 'tex' mode uses disable_para and enable_para
1198: # so we don't need to know the target in the check below:
1199:
1200: if (!$para_disabled) {
1201: my $current_string = $closing_string;
1202: $closing_string = ''; # Not in a para anymore.
1203: return $current_string;
1204: } else {
1205: return '';
1206: }
1.122 albertel 1207:
1208: }
1.277 foxr 1209: }
1.181 sakharuk 1210: #-- <br> tag (end tag forbidden)
1.122 albertel 1211: sub start_br {
1212: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1213: my $currentstring = '';
1.325 albertel 1214: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1215: $currentstring .= $token->[4];
1216: } elsif ($target eq 'tex') {
1.227 sakharuk 1217: my @tempo=@$tagstack;
1.229 sakharuk 1218: my $signal=0;
1.287 foxr 1219: # Not going to factor this to is_inside_of since that would require
1220: # multiple stack traversals.
1221: #
1.227 sakharuk 1222: for (my $i=$#tempo;$i>=0;$i--) {
1223: if (($tempo[$i] eq 'b') || ($tempo[$i] eq 'strong') ||
1.334 albertel 1224: ($tempo[$i] eq 'ol') || ($tempo[$i] eq 'ul')) {
1.229 sakharuk 1225: $signal=1;
1.334 albertel 1226: }
1227: if (($tempo[$i] eq 'td') || ($tempo[$i] eq 'th')) {
1.336 foxr 1228: $signal = 1;
1.227 sakharuk 1229: }
1230: }
1.334 albertel 1231: if ($signal eq 1) {
1.219 sakharuk 1232: $currentstring .= ' \vskip 0 mm ';
1.355 foxr 1233: } else {
1.219 sakharuk 1234: $currentstring .= '\strut \\\\ \strut ';
1.1 sakharuk 1235: }
1.355 foxr 1236:
1.144 sakharuk 1237: }
1.122 albertel 1238: return $currentstring;
1239: }
1240:
1241: sub end_br {
1242: my ($target,$token) = @_;
1243: my $currentstring = '';
1.325 albertel 1244: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1245: $currentstring .= $token->[2];
1246: }
1247: return $currentstring;
1248: }
1249:
1.181 sakharuk 1250: #-- <big> tag (end tag required)
1.122 albertel 1251: sub start_big {
1252: my ($target,$token) = @_;
1253: my $currentstring = '';
1.325 albertel 1254: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1255: $currentstring .= $token->[4];
1256: } elsif ($target eq 'tex') {
1.137 sakharuk 1257: $currentstring .= '{\large ';
1.144 sakharuk 1258: }
1.122 albertel 1259: return $currentstring;
1260: }
1261:
1262: sub end_big {
1263: my ($target,$token) = @_;
1264: my $currentstring = '';
1.325 albertel 1265: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1266: $currentstring .= $token->[2];
1267: } elsif ($target eq 'tex') {
1268: $currentstring .= '}';
1269: }
1270: return $currentstring;
1271: }
1272:
1.181 sakharuk 1273: #-- <small> tag (end tag required)
1.122 albertel 1274: sub start_small {
1275: my ($target,$token) = @_;
1276: my $currentstring = '';
1.325 albertel 1277: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1278: $currentstring .= $token->[4];
1279: } elsif ($target eq 'tex') {
1280: $currentstring .= '{\footnotesize ';
1.144 sakharuk 1281: }
1.122 albertel 1282: return $currentstring;
1283: }
1284:
1285: sub end_small {
1286: my ($target,$token) = @_;
1287: my $currentstring = '';
1.325 albertel 1288: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1289: $currentstring .= $token->[2];
1290: } elsif ($target eq 'tex') {
1291: $currentstring .= '}';
1292: }
1293: return $currentstring;
1294: }
1295:
1.181 sakharuk 1296: #-- <basefont> tag (end tag forbidden)
1.122 albertel 1297: sub start_basefont {
1.126 sakharuk 1298: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.122 albertel 1299: my $currentstring = '';
1.325 albertel 1300: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1301: $currentstring = $token->[4];
1.126 sakharuk 1302: } elsif ($target eq 'tex') {
1303: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1304: if (defined $basesize) {
1305: $currentstring = '{\\'.$basesize.' ';
1306: }
1307: }
1.122 albertel 1308: return $currentstring;
1309: }
1310:
1311: sub end_basefont {
1.126 sakharuk 1312: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1313: my $currentstring = '';
1.325 albertel 1314: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1315: $currentstring = $token->[4];
1.126 sakharuk 1316: } elsif ($target eq 'tex') {
1317: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1318: if (defined $basesize) {
1319: $currentstring = '}';
1320: }
1321: }
1.122 albertel 1322: return $currentstring;
1323: }
1324:
1.181 sakharuk 1325: #-- <font> tag (end tag required)
1.122 albertel 1326: sub start_font {
1327: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1328: my $currentstring = '';
1.325 albertel 1329: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1330: my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
1.204 albertel 1331: if ($face!~/symbol/i) {
1.267 albertel 1332: if (($env{'browser.fontenhance'} eq 'on') ||
1333: ($env{'browser.blackwhite'} eq 'on')) { return ''; }
1.155 www 1334: }
1.122 albertel 1335: $currentstring = $token->[4];
1.126 sakharuk 1336: } elsif ($target eq 'tex') {
1337: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1338: if (defined $fontsize) {
1339: $currentstring = '{\\'.$fontsize.' ';
1340: }
1341: }
1.122 albertel 1342: return $currentstring;
1343: }
1344:
1345: sub end_font {
1346: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1347: my $currentstring = '';
1.325 albertel 1348: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1349: $currentstring = $token->[2];
1.126 sakharuk 1350: } elsif ($target eq 'tex') {
1351: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1352: if (defined $fontsize) {
1353: $currentstring = '}';
1354: }
1355: }
1.122 albertel 1356: return $currentstring;
1357: }
1358:
1.181 sakharuk 1359: #-- <strike> tag (end tag required)
1.122 albertel 1360: sub start_strike {
1361: my ($target,$token) = @_;
1362: my $currentstring = '';
1.325 albertel 1363: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1364: $currentstring .= $token->[4];
1365: } elsif ($target eq 'tex') {
1366: &Apache::lonxml::startredirection();
1367: }
1368: return $currentstring;
1369: }
1370:
1371: sub end_strike {
1372: my ($target,$token) = @_;
1373: my $currentstring = '';
1.325 albertel 1374: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1375: $currentstring .= $token->[2];
1376: } elsif ($target eq 'tex') {
1377: $currentstring=&Apache::lonxml::endredirection();
1378: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1379: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1380: $currentstring=~s/(\S)\s*$/$1\}/;
1381: }
1382: return $currentstring;
1383: }
1384:
1.181 sakharuk 1385: #-- <s> tag (end tag required)
1.122 albertel 1386: sub start_s {
1387: my ($target,$token) = @_;
1388: my $currentstring = '';
1.325 albertel 1389: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1390: $currentstring .= $token->[4];
1391: } elsif ($target eq 'tex') {
1392: &Apache::lonxml::startredirection();
1393: }
1394: return $currentstring;
1395: }
1396:
1397: sub end_s {
1398: my ($target,$token) = @_;
1399: my $currentstring = '';
1.325 albertel 1400: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1401: $currentstring .= $token->[2];
1402: } elsif ($target eq 'tex') {
1403: $currentstring=&Apache::lonxml::endredirection();
1404: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1405: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1406: $currentstring=~s/(\S)\s*$/$1\}/;
1407: }
1408: return $currentstring;
1409: }
1410:
1.181 sakharuk 1411: #-- <sub> tag (end tag required)
1.122 albertel 1412: sub start_sub {
1413: my ($target,$token) = @_;
1414: my $currentstring = '';
1.325 albertel 1415: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1416: $currentstring .= $token->[4];
1417: } elsif ($target eq 'tex') {
1.355 foxr 1418: $currentstring .= '\raisebox{-\smallskipamount}{\scriptsize{';
1.122 albertel 1419: }
1420: return $currentstring;
1421: }
1422:
1423: sub end_sub {
1424: my ($target,$token) = @_;
1425: my $currentstring = '';
1.325 albertel 1426: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1427: $currentstring .= $token->[2];
1428: } elsif ($target eq 'tex') {
1.202 sakharuk 1429: $currentstring .= '}}';
1.122 albertel 1430: }
1431: return $currentstring;
1432: }
1433:
1.181 sakharuk 1434: #-- <sup> tag (end tag required)
1.122 albertel 1435: sub start_sup {
1436: my ($target,$token) = @_;
1437: my $currentstring = '';
1.325 albertel 1438: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1439: $currentstring .= $token->[4];
1440: } elsif ($target eq 'tex') {
1.355 foxr 1441: $currentstring .= '\raisebox{\smallskipamount}{\scriptsize{';
1.122 albertel 1442: }
1443: return $currentstring;
1444: }
1445:
1446: sub end_sup {
1447: my ($target,$token) = @_;
1448: my $currentstring = '';
1.325 albertel 1449: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1450: $currentstring .= $token->[2];
1451: } elsif ($target eq 'tex') {
1.202 sakharuk 1452: $currentstring .= '}}';
1.122 albertel 1453: }
1454: return $currentstring;
1455: }
1456:
1.181 sakharuk 1457: #-- <hr> tag (end tag forbidden)
1.122 albertel 1458: sub start_hr {
1.124 sakharuk 1459: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1460: my $currentstring = &end_p(); # End enclosing para.
1.325 albertel 1461: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1462: $currentstring .= $token->[4];
1463: } elsif ($target eq 'tex') {
1.361 ! foxr 1464:
! 1465: # <hr /> can't be inside of <sup><sub> thank you LaTeX.
! 1466: #
! 1467: my $restart_sub = 0;
! 1468: my $restart_sup = 0;
! 1469:
! 1470: # Since <sub> and <sup> are simple tags it's ok to turn off/on
! 1471: # using the start_ stop_ functions.. those tags only care about
! 1472: # $target.
! 1473:
! 1474: if (&is_inside_of($tagstack, "sub")) {
! 1475: $restart_sub = 1;
! 1476: $currentstring .= &end_sub($target, $token, $tagstack,
! 1477: $parstack, $parser, $safeeval);
! 1478: }
! 1479: if (&is_inside_of($tagstack, "sup")) {
! 1480: $restart_sup = 1;
! 1481: $currentstring .= &end_sup($target, $token, $tagstack,
! 1482: $parstack, $parser, $safeeval);
! 1483: }
! 1484:
1.149 sakharuk 1485: my $LaTeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1.124 sakharuk 1486: if (defined $LaTeXwidth) {
1487: if ($LaTeXwidth=~/^%/) {
1488: substr($LaTeXwidth,0,1)='';
1489: $LaTeXwidth=($LaTeXwidth/100).'\textwidth';
1490: }
1491: } else {
1.148 sakharuk 1492: $LaTeXwidth ='0.9\textwidth';
1.124 sakharuk 1493: }
1494: my ($pre,$post);
1495: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1496: if (($align eq 'center') || (not defined $align)) {
1497: $pre=''; $post='';
1498: } elsif ($align eq 'left') {
1499: $pre='\rlap{'; $post='} \hfill';
1500: } elsif ($align eq 'right') {
1501: $pre=' \hfill \llap{'; $post='}';
1502: }
1.148 sakharuk 1503: $currentstring .= ' \vskip 0 mm \noindent\makebox['.$LaTeXwidth.']{'.$pre.'\makebox['.
1.124 sakharuk 1504: $LaTeXwidth.'][b]{\hrulefill}'.$post.'}\vskip 0 mm ';
1.361 ! foxr 1505: # Turn stuff back on that we can't be inside of.
! 1506:
! 1507: if ($restart_sub) {
! 1508: $currentstring .= &start_sub($target, $token, $tagstack,
! 1509: $parstack, $parser, $safeeval);
! 1510: }
! 1511: if ($restart_sup) {
! 1512: $currentstring .= &start_sup($target, $token, $tagstack,
! 1513: $parstack, $parser, $safeeval);
! 1514: }
1.122 albertel 1515: }
1516: return $currentstring;
1517: }
1518:
1519: sub end_hr {
1520: my ($target,$token) = @_;
1521: my $currentstring = '';
1.325 albertel 1522: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1523: $currentstring .= $token->[2];
1.148 sakharuk 1524: }
1.122 albertel 1525: return $currentstring;
1526: }
1527:
1.181 sakharuk 1528: #-- <div> tag (end tag required)
1.280 foxr 1529: {
1530:
1531: # Since div can be nested, the stack below is used
1532: # in 'tex' mode to store the ending strings
1533: # for the div stack.
1534:
1535: my @div_end_stack;
1536:
1.122 albertel 1537: sub start_div {
1.280 foxr 1538: my ($target,$token, $tagstack, $parstack, $parser, $safeeval) = @_;
1.279 foxr 1539: my $currentstring = &end_p(); # Close enclosing para.
1.325 albertel 1540: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1541: $currentstring .= $token->[4];
1542: }
1.280 foxr 1543: if ($target eq 'tex') {
1544: # 4 possible alignments: left, right, center, and -missing-.
1545:
1546: my $endstring = '';
1547:
1548: my $align = lc(&Apache::lonxml::get_param('align', $parstack,
1549: $safeeval, undef, 1));
1550: if ($align eq 'center') {
1551: $currentstring .= '\begin{center}';
1552: $endstring = '\end{center}';
1.309 albertel 1553: if (&is_inside_of($tagstack, "table")) {
1554: $currentstring = ¢er_correction().$currentstring;
1555: }
1.280 foxr 1556: }
1557: elsif ($align eq 'right') {
1558: $currentstring .= '\begin{flushright}';
1559: $endstring .= '\end{flushright}';
1560: } elsif ($align eq 'left') {
1561: $currentstring .= '\begin{flushleft}';
1562: $endstring = '\end{flushleft}';
1563: } else {
1564:
1565: }
1566: $currentstring .= "\n"; # For human readability.
1567: $endstring = "\n$endstring\n"; # For human readability
1568: push(@div_end_stack, $endstring);
1569: }
1.122 albertel 1570: return $currentstring;
1571: }
1572:
1573: sub end_div {
1574: my ($target,$token) = @_;
1575: my $currentstring = '';
1.325 albertel 1576: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1577: $currentstring .= $token->[2];
1.280 foxr 1578: }
1579: if ($target eq 'tex') {
1580: my $endstring = pop @div_end_stack;
1581: $currentstring .= $endstring;
1582: }
1.122 albertel 1583: return $currentstring;
1584: }
1.280 foxr 1585: }
1.122 albertel 1586:
1.181 sakharuk 1587: #-- <a> tag (end tag required)
1.122 albertel 1588: sub start_a {
1.149 sakharuk 1589: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1590: my $currentstring = '';
1.325 albertel 1591: if ($target eq 'web' || $target eq 'webgrade') {
1.250 albertel 1592: my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
1593: undef,1);
1594: $currentstring=&Apache::lonenc::encrypt_ref($token,{'href'=>$href});
1.122 albertel 1595: }
1596: return $currentstring;
1597: }
1598:
1599: sub end_a {
1.168 albertel 1600: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1601: my $currentstring = '';
1.325 albertel 1602: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1603: $currentstring .= $token->[2];
1604: }
1.351 foxr 1605: if ($target eq 'tex') {
1.352 albertel 1606: my $href =
1607: &Apache::lonxml::get_param('href',$parstack,$safeeval,undef,1);
1608: my $name =
1609: &Apache::lonxml::get_param('name',$parstack,$safeeval,undef,1);
1610: if ($href =~ /\S/) {
1611: $href =~ s/([^\\])%/$1\\\%/g;
1612: $currentstring .= ' ({\tt URI:'.&Apache::lonxml::latex_special_symbols($href).'})';
1613: } elsif ($name =~ /\S/) {
1614: $currentstring .= ' ({\tt Anchor:'.&Apache::lonxml::latex_special_symbols($name).'})';
1.351 foxr 1615: } else {
1616: $currentstring.='';
1617: }
1618: }
1.122 albertel 1619: return $currentstring;
1620: }
1621:
1.181 sakharuk 1622: #-- <li> tag (end tag optional)
1.122 albertel 1623: sub start_li {
1.168 albertel 1624: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1625: my $currentstring = '';
1.325 albertel 1626: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1627: $currentstring = $token->[4];
1628: } elsif ($target eq 'tex') {
1.237 sakharuk 1629: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1630: my $value=&Apache::lonxml::get_param('value',$parstack,$safeeval,undef,0);
1.238 albertel 1631: #FIXME need to support types i and I
1632: if ($type=~/disc/) {
1633: $currentstring .= ' \item[$\bullet$] ';
1634: } elsif ($type=~/circle/) {
1635: $currentstring .= ' \item[$\circ$] ';
1.146 sakharuk 1636: } elsif ($type=~/square/) {
1.238 albertel 1637: $currentstring .= ' \item[$\diamond$] ';
1638: } elsif ($type eq '1') {
1639: $currentstring .= ' \item['.($Apache::londefdef::list_index+1).'.]';
1.237 sakharuk 1640: } elsif ($type eq 'A') {
1.238 albertel 1641: $currentstring .= ' \item['.('A'..'Z')[$Apache::londefdef::list_index].'.]';
1.237 sakharuk 1642: } elsif ($type eq 'a') {
1.238 albertel 1643: $currentstring .= ' \item['.('a'..'z')[$Apache::londefdef::list_index].'.]';
1.237 sakharuk 1644: } elsif ($value ne '') {
1645: $currentstring .= ' \item['.$value.'] ';
1.122 albertel 1646: } else {
1.146 sakharuk 1647: $currentstring .= ' \item ';
1.122 albertel 1648: }
1.238 albertel 1649: $Apache::londefdef::list_index++;
1650: }
1.122 albertel 1651: return $currentstring;
1652: }
1653:
1654: sub end_li {
1655: my ($target,$token) = @_;
1.279 foxr 1656: my $currentstring = &end_p(); # In case there's a <p> in the <li>
1.325 albertel 1657: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1658: $currentstring .= $token->[2];
1.122 albertel 1659: }
1660: return $currentstring;
1661: }
1662:
1.181 sakharuk 1663: #-- <u> tag (end tag required)
1.122 albertel 1664: sub start_u {
1665: my ($target,$token) = @_;
1666: my $currentstring = '';
1.325 albertel 1667: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1668: $currentstring .= $token->[4];
1669: } elsif ($target eq 'tex') {
1670: &Apache::lonxml::startredirection();
1671: }
1672: return $currentstring;
1673: }
1674:
1675: sub end_u {
1676: my ($target,$token) = @_;
1677: my $currentstring = '';
1.325 albertel 1678: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1679: $currentstring .= $token->[2];
1680: } elsif ($target eq 'tex') {
1681: $currentstring=&Apache::lonxml::endredirection();
1682: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1683: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1684: $currentstring=~s/(\S)\s*$/$1\}/;
1685: }
1686: return $currentstring;
1687: }
1688:
1.181 sakharuk 1689: #-- <ul> tag (end tag required)
1.122 albertel 1690: sub start_ul {
1.125 sakharuk 1691: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1692: my $currentstring = &end_p(); # Close off enclosing list.
1.325 albertel 1693: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1694: $currentstring .= $token->[4];
1.122 albertel 1695: } elsif ($target eq 'tex') {
1.125 sakharuk 1696: my $TeXtype=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1.238 albertel 1697: $Apache::londefdef::list_index=0;
1.125 sakharuk 1698: if ($TeXtype eq 'disc') {
1.222 sakharuk 1699: $currentstring .= '\renewcommand{\labelitemi}{$\bullet$}'.
1700: '\renewcommand{\labelitemii}{$\bullet$}'.
1701: '\renewcommand{\labelitemiii}{$\bullet$}'.
1702: '\renewcommand{\labelitemiv}{$\bullet$}';
1.125 sakharuk 1703: } elsif ($TeXtype eq 'circle') {
1.222 sakharuk 1704: $currentstring .= '\renewcommand{\labelitemi}{$\circ$}'.
1705: '\renewcommand{\labelitemii}{$\circ$}'.
1706: '\renewcommand{\labelitemiii}{$\circ$}'.
1707: '\renewcommand{\labelitemiv}{$\circ$}';
1.125 sakharuk 1708: } elsif ($TeXtype eq 'square') {
1.222 sakharuk 1709: $currentstring .= '\renewcommand{\labelitemi}{$\diamond$}'.
1710: '\renewcommand{\labelitemii}{$\diamond$}'.
1711: '\renewcommand{\labelitemiii}{$\diamond$}'.
1712: '\renewcommand{\labelitemiv}{$\diamond$}';
1.125 sakharuk 1713: }
1.222 sakharuk 1714: $currentstring .= '\strut \begin{itemize}';
1.122 albertel 1715: }
1716: return $currentstring;
1717: }
1718:
1719: sub end_ul {
1720: my ($target,$token) = @_;
1721: my $currentstring = '';
1.325 albertel 1722: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1723: $currentstring = $token->[2];
1724: } elsif ($target eq 'tex') {
1.222 sakharuk 1725: $currentstring = '\end{itemize} \renewcommand{\labelitemi}{$\bullet$}'.
1726: '\renewcommand{\labelitemii}{$\bullet$}'.
1727: '\renewcommand{\labelitemiii}{$\bullet$}'.
1728: '\renewcommand{\labelitemiv}{$\bullet$}\strut ';
1.122 albertel 1729: }
1730: return $currentstring;
1731: }
1732:
1.181 sakharuk 1733: #-- <menu> tag (end tag required)
1.122 albertel 1734: sub start_menu {
1735: my ($target,$token) = @_;
1736: my $currentstring = '';
1.325 albertel 1737: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1738: $currentstring = $token->[4];
1739: } elsif ($target eq 'tex') {
1740: $currentstring = " \\begin{itemize} ";
1741: }
1742: return $currentstring;
1743: }
1744:
1745: sub end_menu {
1746: my ($target,$token) = @_;
1747: my $currentstring = '';
1.325 albertel 1748: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1749: $currentstring = $token->[2];
1750: } elsif ($target eq 'tex') {
1751: $currentstring = " \\end{itemize}";
1752: }
1753: return $currentstring;
1754: }
1755:
1.181 sakharuk 1756: #-- <dir> tag (end tag required)
1.122 albertel 1757: sub start_dir {
1758: my ($target,$token) = @_;
1.279 foxr 1759: my $currentstring = &end_p(); # In case there's a <p> prior to the list.
1.325 albertel 1760: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1761: $currentstring .= $token->[4];
1.122 albertel 1762: } elsif ($target eq 'tex') {
1.277 foxr 1763: $currentstring .= " \\begin{itemize} ";
1.122 albertel 1764: }
1765: return $currentstring;
1766: }
1767:
1768: sub end_dir {
1769: my ($target,$token) = @_;
1770: my $currentstring = '';
1.325 albertel 1771: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1772: $currentstring = $token->[2];
1773: } elsif ($target eq 'tex') {
1774: $currentstring = " \\end{itemize}";
1775: }
1776: return $currentstring;
1777: }
1778:
1.181 sakharuk 1779: #-- <ol> tag (end tag required)
1.122 albertel 1780: sub start_ol {
1.125 sakharuk 1781: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1782: my $currentstring = &end_p(); # In case there's a <p> prior to the list.
1.325 albertel 1783: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1784: $currentstring .= $token->[4];
1.122 albertel 1785: } elsif ($target eq 'tex') {
1.238 albertel 1786: $Apache::londefdef::list_index=0;
1.125 sakharuk 1787: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1788: if ($type eq '1') {
1.222 sakharuk 1789: $currentstring .= '\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1790: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1791: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1792: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}';
1.125 sakharuk 1793: } elsif ($type eq 'A') {
1.222 sakharuk 1794: $currentstring .= '\renewcommand{\labelenumi}{\Alph{enumi}.}'.
1795: '\renewcommand{\labelenumii}{\Alph{enumii}.}'.
1796: '\renewcommand{\labelenumiii}{\Alph{enumiii}.}'.
1797: '\renewcommand{\labelenumiv}{\Alph{enumiv}.}';
1.125 sakharuk 1798: } elsif ($type eq 'a') {
1.222 sakharuk 1799: $currentstring .= '\renewcommand{\labelenumi}{\alph{enumi}.}'.
1800: '\renewcommand{\labelenumii}{\alph{enumii}.}'.
1801: '\renewcommand{\labelenumiii}{\alph{enumiii}.}'.
1802: '\renewcommand{\labelenumiv}{\alph{enumiv}.}';
1.125 sakharuk 1803: } elsif ($type eq 'i') {
1.222 sakharuk 1804: $currentstring .= '\renewcommand{\labelenumi}{\roman{enumi}.}'.
1805: '\renewcommand{\labelenumii}{\roman{enumii}.}'.
1806: '\renewcommand{\labelenumiii}{\roman{enumiii}.}'.
1807: '\renewcommand{\labelenumiv}{\roman{enumiv}.}';
1.125 sakharuk 1808: } elsif ($type eq 'I') {
1.222 sakharuk 1809: $currentstring .= '\renewcommand{\labelenumi}{\Roman{enumi}.}'.
1810: '\renewcommand{\labelenumii}{\Roman{enumii}.}'.
1811: '\renewcommand{\labelenumiii}{\Roman{enumiii}.}'.
1812: '\renewcommand{\labelenumiv}{\Roman{enumiv}.}';
1.125 sakharuk 1813: }
1.222 sakharuk 1814: $currentstring .= '\strut \begin{enumerate}';
1.122 albertel 1815: }
1816: return $currentstring;
1817: }
1818:
1819: sub end_ol {
1820: my ($target,$token) = @_;
1821: my $currentstring = '';
1.325 albertel 1822: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1823: $currentstring = $token->[2];
1824: } elsif ($target eq 'tex') {
1.222 sakharuk 1825: $currentstring = '\end{enumerate}\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1826: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1827: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1828: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}\strut ';
1.122 albertel 1829: }
1830: return $currentstring;
1831: }
1832:
1.181 sakharuk 1833: #-- <dl> tag (end tag required)
1.122 albertel 1834: sub start_dl {
1835: my ($target,$token) = @_;
1.279 foxr 1836: my $currentstring = &end_p(); # In case there's a <p> unclosed prior to the list.
1.325 albertel 1837: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1838: $currentstring .= $token->[4];
1.122 albertel 1839: } elsif ($target eq 'tex') {
1.277 foxr 1840: $currentstring .= '\begin{description}';
1.243 albertel 1841: $Apache::londefdef::DL++;
1842: push(@Apache::londefdef::description,[]);
1843: $Apache::londefdef::DD[$Apache::londefdef::DL]=0;
1844: $Apache::londefdef::DT[$Apache::londefdef::DL]=0;
1.244 albertel 1845: $Apache::londefdef::seenDT[$Apache::londefdef::DL]=0;
1.122 albertel 1846: }
1847: return $currentstring;
1848: }
1849:
1850: sub end_dl {
1.174 sakharuk 1851: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1852: my $currentstring = '';
1.325 albertel 1853: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1854: $currentstring = $token->[2];
1855: } elsif ($target eq 'tex') {
1.243 albertel 1856: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1857: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
1858: foreach my $element (@{$Apache::londefdef::description[-1]}) {
1.174 sakharuk 1859: $currentstring.=' '.$element.' ';
1860: }
1.243 albertel 1861: pop(@Apache::londefdef::description);
1.174 sakharuk 1862: $currentstring.='\end{description}';
1.243 albertel 1863: delete($Apache::londefdef::DD[$Apache::londefdef::DL]);
1864: delete($Apache::londefdef::DT[$Apache::londefdef::DL]);
1.244 albertel 1865: delete($Apache::londefdef::seenDT[$Apache::londefdef::DL]);
1.243 albertel 1866: $Apache::londefdef::DL--;
1.122 albertel 1867: }
1868: return $currentstring;
1869: }
1870:
1.172 sakharuk 1871: #-- <dt> tag (end tag optional)
1.122 albertel 1872: sub start_dt {
1.172 sakharuk 1873: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1874: my $currentstring='';
1.325 albertel 1875: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1876: $currentstring = $token->[4];
1877: } elsif ($target eq 'tex') {
1.243 albertel 1878: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1879: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
1.174 sakharuk 1880: &Apache::lonxml::startredirection();
1.243 albertel 1881: $Apache::londefdef::DT[-1]++;
1.244 albertel 1882: $Apache::londefdef::seenDT[-1]=1;
1.122 albertel 1883: }
1884: return $currentstring;
1885: }
1886:
1887: sub end_dt {
1.172 sakharuk 1888: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1889: my $currentstring = '';
1.325 albertel 1890: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1891: $currentstring = $token->[2];
1892: } elsif ($target eq 'tex') {
1.243 albertel 1893: if ($Apache::londefdef::DT[-1]) {
1894: my $data=&item_cleanup();
1.244 albertel 1895: push(@{$Apache::londefdef::description[-1]},'\item['.$data.'] \strut \vskip 0mm');
1.243 albertel 1896: $Apache::londefdef::DT[-1]--;
1897: }
1.122 albertel 1898: }
1899: return $currentstring;
1900: }
1901:
1.173 sakharuk 1902: sub item_cleanup {
1.174 sakharuk 1903: my $item=&Apache::lonxml::endredirection();
1.173 sakharuk 1904: $item=~s/\\begin{center}//g;
1905: $item=~s/\\end{center}//g;
1906: return $item;
1907: }
1908:
1.181 sakharuk 1909: #-- <dd> tag (end tag optional)
1.122 albertel 1910: sub start_dd {
1.147 sakharuk 1911: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1912: my $currentstring = '';
1.325 albertel 1913: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1914: $currentstring = $token->[4];
1.147 sakharuk 1915: } elsif ($target eq 'tex') {
1.243 albertel 1916: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1917: if ($Apache::londefdef::DD[-1]) { &end_dd(@_);}
1.244 albertel 1918: if (!$Apache::londefdef::seenDT[-1]) {
1919: push(@{$Apache::londefdef::description[-1]},'\item[\strut] \strut \vskip 0mm ');
1920: }
1.243 albertel 1921: push(@{$Apache::londefdef::description[-1]},'');
1922: $Apache::londefdef::description[-1]->[-1].=' \strut ';
1923: $Apache::londefdef::DD[-1]++;
1.174 sakharuk 1924: &Apache::lonxml::startredirection();
1.122 albertel 1925: }
1926: return $currentstring;
1927: }
1928:
1929: sub end_dd {
1.174 sakharuk 1930: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1931: my $currentstring = '';
1.325 albertel 1932: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1933: $currentstring = $token->[2];
1.174 sakharuk 1934: } elsif ($target eq 'tex') {
1.243 albertel 1935: $Apache::londefdef::description[-1]->[-1].=
1936: &Apache::lonxml::endredirection().' \vskip 0mm ';
1937: $Apache::londefdef::DD[-1]--;
1.174 sakharuk 1938: }
1.122 albertel 1939: return $currentstring;
1940: }
1941:
1.181 sakharuk 1942: #-- <table> tag (end tag required)
1.277 foxr 1943: # <table> also ends any prior <p> that is not closed.
1944: # but, unless I allow <p>'s to nest, that's the
1945: # only way I could think of to allow <p> in
1946: # <tr> <th> bodies
1947: #
1.206 sakharuk 1948: #list of supported attributes: border,width,TeXwidth
1.91 sakharuk 1949: sub start_table {
1950: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 foxr 1951: my $textwidth = '';
1.279 foxr 1952: my $currentstring = &end_p();
1.325 albertel 1953: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1954: $currentstring .= $token->[4];
1.91 sakharuk 1955: } elsif ($target eq 'tex') {
1.344 albertel 1956: push(@Apache::londefdef::table, {});
1.91 sakharuk 1957: $Apache::londefdef::table[-1]{'row_number'} = -1;
1.222 sakharuk 1958: #maximum table's width (default coincides with text line length)
1.206 sakharuk 1959: if ($#Apache::londefdef::table==0) {
1.267 albertel 1960: $textwidth=&recalc($env{'form.textwidth'}); #result is always in mm
1.206 sakharuk 1961: $textwidth=~/(\d+\.?\d*)/;
1.358 foxr 1962: $textwidth=0.85*$1; #accounts "internal" LaTeX space for table frame
1.206 sakharuk 1963: } else {
1964: if ($Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}]=~/\d/) {
1965: #the maximum width of nested table is determined by LATeX width of parent cell
1966: $textwidth=$Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}];
1967: } else {
1968: #try to use all space not used before (minus 5% for LaTeX table internal) - rather silly
1.228 sakharuk 1969: $textwidth=$Apache::londefdef::table[-2]{'width'};
1.206 sakharuk 1970: for (my $i=0;$i<$Apache::londefdef::table[-2]{'counter_columns'};$i++) {
1971: $textwidth=$textwidth-$Apache::londefdef::table[-2]{'TeXlen'}[0][$i];
1972: }
1973: }
1974: }
1.294 foxr 1975:
1976: # width either comes forced from the TeXwidth or the width parameters.
1977: # in either case it can be a percentage or absolute width.
1.311 albertel 1978: # in the width case we ignore absolute width
1.126 sakharuk 1979: my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1.308 albertel 1980: if (!defined($TeXwidth)) {
1.311 albertel 1981: my $htmlwidth = &Apache::lonxml::get_param('width',$parstack,
1982: $safeeval,undef,1);
1983: if ($htmlwidth =~ /%/) {
1984: $TeXwidth = $htmlwidth;
1985: } else {
1986: $TeXwidth = $textwidth;
1987: }
1.294 foxr 1988: } else {
1989: $Apache::londefdef::table[-1]{'forcedtablewidth'} = 1;
1990: }
1991: if ($TeXwidth=~/%/) {
1.203 sakharuk 1992: $Apache::londefdef::table[-1]{'percent'}=1;
1.126 sakharuk 1993: $TeXwidth=~/(\d+)/;
1.206 sakharuk 1994: $Apache::londefdef::table[-1]{'width'}=$1*$textwidth/100;
1.126 sakharuk 1995: } else {
1.206 sakharuk 1996: $Apache::londefdef::table[-1]{'width'}=$TeXwidth;
1.316 foxr 1997: }
1998: # In the end, however the table width cannot be wider than $textwidth...
1999:
2000: if ($Apache::londefdef::table[-1]{'width'} > $textwidth) {
2001: $Apache::londefdef::table[-1]{'width'} = $textwidth;
2002: }
1.294 foxr 2003:
1.126 sakharuk 2004: #table's border
1.206 sakharuk 2005: my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval);
1.208 sakharuk 2006: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
1.91 sakharuk 2007: unless (defined $border) { $border = 0; }
2008: if ($border) {
2009: $Apache::londefdef::table[-1]{'hinc'} = '\hline ';
2010: $Apache::londefdef::table[-1]{'vinc'} = '&';
2011: $Apache::londefdef::table[-1]{'vvinc'} = '|';
2012: } else {
2013: $Apache::londefdef::table[-1]{'hinc'} = '';
2014: $Apache::londefdef::table[-1]{'vinc'} = '&';
2015: $Apache::londefdef::table[-1]{'vvinc'} = '';
2016: }
1.206 sakharuk 2017: if ($#Apache::londefdef::table==0) {
1.281 foxr 2018: # Note that \newline seems to destroy the alignment envs.
2019: # $Apache::londefdef::table[-1]{'output'}='\strut\newline\strut\setlength{\tabcolsep}{1 mm}';
2020: $Apache::londefdef::table[-1]{'output'}='\strut'.'\\\\'."\n".'\strut\setlength{\tabcolsep}{1 mm}';
1.206 sakharuk 2021: }
2022: $Apache::londefdef::table[-1]{'output'}.=' \noindent \begin{tabular} ';
2023: $Apache::londefdef::table[-1]{'TeXlen'}=[];
2024: $Apache::londefdef::table[-1]{'objectlen'}=[];
1.229 sakharuk 2025: $Apache::londefdef::table[-1]{'objectsignal'}=[];
1.206 sakharuk 2026: $Apache::londefdef::table[-1]{'maxlen'}=[];
2027: $Apache::londefdef::table[-1]{'minlen'}=[];
2028: $Apache::londefdef::table[-1]{'content'}=[];
2029: $Apache::londefdef::table[-1]{'align'}=[];
1.340 foxr 2030: $currentstring.=' \keephidden{NEW TABLE ENTRY}';
1.295 foxr 2031:
1.294 foxr 2032:
2033: }
1.91 sakharuk 2034: return $currentstring;
2035: }
1.122 albertel 2036:
2037: sub end_table {
2038: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2039: my $currentstring = '';
1.325 albertel 2040: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2041: $currentstring = $token->[2];
2042: } elsif ($target eq 'tex') {
2043: my $inmemory = '';
2044: my $output = '';
1.206 sakharuk 2045: my $WARNING='';
2046: #width of columns from TeXwidth attributes
1.294 foxr 2047:
1.206 sakharuk 2048: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2049: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2050: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]<$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn]) {
2051: $Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]=$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn];
2052: }
2053: }
2054: }
2055: #free space and number of empty columns
2056: my ($available_space,$empty_columns)=($Apache::londefdef::table[-1]{'width'},0);
1.228 sakharuk 2057: if ($#Apache::londefdef::table ne 0) {$available_space=0.9*$available_space;}
1.206 sakharuk 2058: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2059: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]==0) {
2060: $empty_columns++;
2061: } else {
2062: $available_space=$available_space-$Apache::londefdef::table[-1]{'TeXlen'}[0][$jn];
2063: }
2064: }
1.358 foxr 2065:
1.206 sakharuk 2066: #boundaries for contents columns
2067: my @min_len=();#columns can not be narrower
2068: my @max_len=();#maximum length of column
1.357 foxr 2069: my $avg_max;
2070: my $avg_min;
2071: my $counter_cols = $Apache::londefdef::table[-1]{'counter_columns'};
2072: for (my $jn=0;$jn<=$counter_cols; $jn++) {
1.206 sakharuk 2073: my ($localmin,$localmax)=(0,0);
2074: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2075: if ($localmin<$Apache::londefdef::table[-1]{'minlen'}[$in][$jn]) {
2076: $localmin=$Apache::londefdef::table[-1]{'minlen'}[$in][$jn];
2077: }
2078: if ($localmax<$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn]) {
2079: $localmax=$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn];
2080: }
2081: }
2082: push @min_len, $localmin;
2083: push @max_len, $localmax;
1.357 foxr 2084: $avg_max = $localmax + $avg_max;
2085: $avg_min = $localmin + $avg_min;
2086: }
2087: # Does not really matter what the average max/min are if there are no cols.
2088: # and this prevents div 0 in that case.
2089:
2090: if ($counter_cols != 0) {
2091: $avg_max = $avg_max/$counter_cols;
2092: $avg_min = $avg_min/$counter_cols;
2093: }
2094:
2095:
2096: # I don't think the below is needed.. but just in case:
2097:
2098: if ($avg_min > $avg_max) {
2099: my $temp = $avg_min;
2100: $avg_min = $avg_max;
2101: $avg_max = $temp;
1.122 albertel 2102: }
1.357 foxr 2103:
2104:
2105: for (my $jn=0;$jn<=$counter_cols;$jn++) {
1.206 sakharuk 2106: my $localmin=0,;
2107: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2108: if ($localmin<$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn]) {
2109: $localmin=$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn];
2110: }
2111: }
1.229 sakharuk 2112: if ($max_len[$jn]<$localmin) {
2113: $max_len[$jn]=$localmin;
2114: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
2115: }#object size is bigger
2116: if ($min_len[$jn]<$localmin) {
2117: $min_len[$jn]=$localmin;
2118: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
2119: }#object size is bigger
1.206 sakharuk 2120: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]!=0) {
2121: $min_len[$jn]=0;
2122: $max_len[$jn]=0;
2123: }
1.357 foxr 2124: # Spans seem to be really bothered by max/min = 0. So if we have one
2125: # make it an average joe max/min.
2126:
2127: if ($max_len[$jn] == 0) {
2128: $max_len[$jn] = $avg_max;
2129: }
2130: if ($min_len[$jn] == 0) {
2131: $min_len[$jn] = $avg_min;
2132: }
2133:
1.206 sakharuk 2134: }
2135: #final adjustment of column width
2136: my @fwidth=@{$Apache::londefdef::table[-1]{'TeXlen'}[0]};#final width array
2137: my @adjust=();
2138: #step 1. adjustment by maximum value
2139: my $space_neeeded=0;
2140: for (my $jn=0;$jn<=$#max_len;$jn++) {
2141: $space_neeeded=$space_neeeded+$max_len[$jn];
2142: }
2143: if ($space_neeeded<=$available_space) {
2144: for (my $jn=0;$jn<=$#max_len;$jn++) {
2145: if ($fwidth[$jn]==0) {
2146: $fwidth[$jn]=$max_len[$jn];
1.53 sakharuk 2147: }
1.51 sakharuk 2148: }
1.206 sakharuk 2149: } else {
2150: #step 2. adjustment by minimum value (estimation)
2151: $space_neeeded=0;
2152: for (my $jn=0;$jn<=$#min_len;$jn++) {
2153: $space_neeeded+=$min_len[$jn];
2154: }
2155: if ($space_neeeded>$available_space) {
2156: $WARNING=' \textbf{NOT ENOUGH SPACE FOR TABLE} ';
2157: for (my $jn=0;$jn<=$#max_len;$jn++) {
2158: if ($fwidth[$jn]==0) {
2159: $fwidth[$jn]=$min_len[$jn];
2160: }
2161: }
1.229 sakharuk 2162: #check if we have objects which can be scaled
2163: my $how_many_to_scale=0;
2164: my @to_scale=();
2165: for (my $jn=0;$jn<=$#max_len;$jn++) {
2166: if ($Apache::londefdef::table[-1]{'objectsignal'}[$jn] eq '1') {
2167: $how_many_to_scale++;
2168: push @to_scale, $jn;
2169: }
2170: }
2171: if ($how_many_to_scale>0) {
2172: my $space_to_adjust=($space_neeeded-$available_space)/$how_many_to_scale;
2173: foreach my $jn (@to_scale) {
2174: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2175: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/;
2176: if ($1 ne '') {
2177: my $current_length=&recalc($1);
2178: $current_length=~/(\d+\.?\d*)/;
2179: $current_length=$current_length-$space_to_adjust;
2180: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/width=$current_length mm/;
2181: }
2182: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/\[(\d+\.?\d*)\s*mm\]/;
2183: if ($1 ne '') {
2184: my $current_length=$1;
2185: $current_length=$current_length-$space_to_adjust;
2186: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/\[(\d+\.?\d*)\s*mm\]/\[$current_length mm\]/;
2187: }
2188: }
2189: $fwidth[$jn]=$fwidth[$jn]-$space_to_adjust;
2190: }
2191: }
1.206 sakharuk 2192: } else {
2193: #step 3. adjustment over minimal + corrections
2194: my $enlarge_coef=$available_space/$space_neeeded;
2195: my $acsessive=0;
2196: for (my $jn=0;$jn<=$#min_len;$jn++) {
2197: $adjust[$jn]=$min_len[$jn]*$enlarge_coef;
2198: if ($adjust[$jn]>$max_len[$jn]) {
2199: $fwidth[$jn]=$max_len[$jn];
2200: $acsessive=$acsessive+$adjust[$jn]-$max_len[$jn];
2201: $adjust[$jn]=0;
1.357 foxr 2202:
1.206 sakharuk 2203: }
2204: }
2205: if ($acsessive>0) {
2206: #we have an excess of space and can redistribute it
2207: my $notempty_columns=0;
2208: for (my $jn=0;$jn<=$#min_len;$jn++) {
2209: if ($adjust[$jn]!=0) {
2210: $notempty_columns++;
2211: }
2212: }
2213: my $per_column=$acsessive/$notempty_columns;
2214: for (my $jn=0;$jn<=$#min_len;$jn++) {
2215: if ($adjust[$jn]!=0) {
2216: $adjust[$jn]+=$per_column;
2217: $fwidth[$jn]=$adjust[$jn];
2218: }
1.223 sakharuk 2219: }
2220: } else {
2221: for (my $jn=0;$jn<=$#min_len;$jn++) {
2222: $fwidth[$jn]=$adjust[$jn];
1.206 sakharuk 2223: }
2224: }
1.203 sakharuk 2225: }
2226: }
1.222 sakharuk 2227: #use all available width if it is defined in % or as TeXwidth
2228: if (($Apache::londefdef::table[-1]{'percent'}==1) || ($Apache::londefdef::table[-1]{'forcetablewidth'}==1)) {
1.203 sakharuk 2229: my $current=0;
1.206 sakharuk 2230: for (my $i=0;$i<=$#fwidth;$i++) {
2231: $current+=$fwidth[$i];
1.203 sakharuk 2232: }
2233: my $coef=$Apache::londefdef::table[-1]{'width'}/$current;
1.206 sakharuk 2234: for (my $i=0;$i<=$#fwidth;$i++) {
2235: $fwidth[$i]*=$coef;
2236: }
2237: }
2238: #removing of empty columns if allowed
1.208 sakharuk 2239: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
1.206 sakharuk 2240: if ($permission eq 'yes') {
2241: my @cleaned_table=();
2242: my @cleaned_header=();
2243: my $colind=0;
2244: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2245: if ($fwidth[$jn]!=0) {
2246: #we need to copy column
2247: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2248: $cleaned_table[$in][$colind]=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
2249: $cleaned_header[$colind]=$fwidth[$jn];
2250: }
2251: $colind++;
2252: }
1.122 albertel 2253: }
1.206 sakharuk 2254: $Apache::londefdef::table[-1]{'content'}=\@cleaned_table;
2255: @fwidth=@cleaned_header;
1.122 albertel 2256: }
1.359 foxr 2257:
1.358 foxr 2258:
1.206 sakharuk 2259: #construct header of the table
2260: my $header_of_table = '{'.$Apache::londefdef::table[-1]{'vvinc'};
2261: for (my $in=0;$in<=$#fwidth;$in++) {
2262: $header_of_table.='p{'.$fwidth[$in].' mm}'.$Apache::londefdef::table[-1]{'vvinc'};
2263: }
2264: $header_of_table .= '}';
1.357 foxr 2265:
1.126 sakharuk 2266: #fill the table
2267: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1.306 foxr 2268: my $have_rowspan = 0;
1.206 sakharuk 2269: for (my $jn=0;$jn<=$#fwidth;$jn++) {
1.320 foxr 2270:
2271: #-----------------------------------------------------------
2272: # I think this order of doing things will ensure that
2273: # single rowspan, columspan and combined row/colspans will
2274: # work correctly. LaTeX is delicate here.
2275: # RF.
1.356 foxr 2276:
1.320 foxr 2277: # Start a rowspan if necessary:
1.356 foxr 2278:
2279: my $primary_col_width = $fwidth[$jn]; # Width of primary column.
1.320 foxr 2280: my $rowspan = $Apache::londefdef::table[-1]{'rowspan'}[$in][$jn];
2281: my $colspan = $Apache::londefdef::table[-1]{'colspan'}[$in][$jn];
1.304 foxr 2282: #
2283: # Do the appropriate magic if this has a colspan
2284: #
1.356 foxr 2285:
2286: my $spanwidth = 0;
1.304 foxr 2287: if ($colspan > 1) {
1.336 foxr 2288: for (my $spancol = $jn; $spancol < $jn + $colspan; $spancol++) {
2289: $spanwidth += $fwidth[$spancol];
2290: }
1.304 foxr 2291: $output .= '\multicolumn{'.
2292: $colspan
1.337 foxr 2293: ."}";
2294: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
2295: $output .= '{|c|}{';
2296: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
2297: $output .= '{|r|}{';
2298: }
2299: else {
2300: $output .= "{|p{$spanwidth mm}|}{";
2301: }
1.356 foxr 2302:
2303: } else {
2304: $spanwidth = $primary_col_width; # If no span width will be just colwidth
1.304 foxr 2305: }
1.306 foxr 2306:
1.337 foxr 2307: # Rowspan... if colspan is 1, and there's an alignment we'll need
2308: # to kick in a multicolumn in order to get the alignment spec.
2309: # this must precede the multirow or LaTex gets quite upset.
2310: # Naturally if colspan > 1 we've already done that above ^
2311: #
2312: my $multirow_aligned = 0;
1.306 foxr 2313: if ($rowspan > 1) {
1.337 foxr 2314: if ($colspan == 1) {
2315: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
2316: $output .= '\multicolumn{1}{|c|}{';
2317: $multirow_aligned = 1;
2318: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
2319: $output .= '\multicolumn{1}{|r|}{';
2320: $multirow_aligned = 1;
2321: }
2322: }
1.306 foxr 2323: $have_rowspan++;
1.356 foxr 2324: if ($multirow_aligned) {
2325: $output .= '\multirow{'.$rowspan.'}[0]{*}{';
2326: } else {
2327: $output .= '\multirow{'.$rowspan."}[0]{$spanwidth mm}{";
2328: }
1.350 albertel 2329:
2330: $Apache::londefdef::table[-1]{'content'}[$in][$jn] =~
2331: s{^\s*\\par\s*}{};
2332: $Apache::londefdef::table[-1]{'content'}[$in][$jn] =~
2333: s{\s*\\vskip\s*0pt\s*$}{};
1.356 foxr 2334:
1.337 foxr 2335: #
2336: # If we did not throw in a multicolumn to align, then add
2337: # an extra {
2338: # so we close correctly without having to keep additional state
2339: # around
2340: #
2341: if (!$multirow_aligned) {
2342: $output .= '{';
2343: }
1.306 foxr 2344: }
2345: if (($rowspan eq '^') || ($rowspan eq '_')) {
2346: $have_rowspan++;
2347: }
1.356 foxr 2348: #--------------------------------------------------------------
1.306 foxr 2349:
1.337 foxr 2350:
2351: # For right and center alignment of single cells.
2352: # we are going to use a multicolumn with a span of 1 to specify alignment.
2353: #
2354: if ($colspan == 1 && $rowspan == 1) {
2355: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
2356: $output .= '\multicolumn{1}{|c|}{';
2357: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
2358: $output .= '\multicolumn{1}{|r|}{';
2359: }
1.206 sakharuk 2360: }
1.337 foxr 2361:
1.206 sakharuk 2362: $output.=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
1.337 foxr 2363:
2364: if (($colspan == 1 && $rowspan == 1) &&
2365: (($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') ||
2366: ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r'))) {
2367: $output .= '}';
1.206 sakharuk 2368: }
1.337 foxr 2369:
1.306 foxr 2370: # Close off any open multirow:
2371:
2372: if ($rowspan > 1) {
1.337 foxr 2373: $output .= '}}';
1.306 foxr 2374: }
1.304 foxr 2375: # Close off the colspan...
2376: #
2377: if ($colspan > 1) {
2378: $output .= '}';
2379: $jn += $colspan-1; # Adjust for number of rows really left.
2380: }
1.206 sakharuk 2381: if ($jn!=$#fwidth) {$output.=' '.$Apache::londefdef::table[-1]{'vinc'};}
2382: }
1.306 foxr 2383: # If have_rowspan > 0, and borders are on, then
2384: # we need to do more than put an \hline at the bottom of row.
2385: # we need to do the appropriate \cline to ensure that
2386: # the spanned rows don't have \hlines through them.
2387:
2388: if (($Apache::londefdef::table[-1]{'hinc'} =~ /\\hline/) && $have_rowspan) {
2389: $output .= ' \\\\ ';
2390: for (my $jn=0; $jn<=$#fwidth;$jn++) {
2391: my $rowspan = $Apache::londefdef::table[-1]{'rowspan'}[$in][$jn];
1.320 foxr 2392: if ($rowspan ne "^") {
2393: if (($rowspan <= 1) || ($rowspan eq '_')) {
2394: my $column = $jn+1;
2395: $output .= '\cline{'.$column.'-'.$column.'} ';
2396: }
1.306 foxr 2397: }
2398: }
2399:
2400: } else {
2401: $output.=' \\\\ '.$Apache::londefdef::table[-1]{'hinc'}.' ';
2402: }
1.122 albertel 2403: }
1.281 foxr 2404: # Note that \newline destroys alignment env's produced by e.g. <div>
2405: # $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut\newline\strut ';
2406: $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut'.'\\\\'."\n".'\strut ';
1.127 sakharuk 2407: if ($#Apache::londefdef::table > 0) {
2408: my $inmemory = $Apache::londefdef::table[-1]{'output'};
1.294 foxr 2409: # Figure out max/and min width by summing us and then
2410: # apply that to the current column of the table we nest in
2411: # if it's larger than the current width or the current width
2412: # is undefined.
2413: #
2414: my $min_nested_width = 0;
2415: my $max_nested_width = 0;
2416: for (my $col = 0; $col <= $Apache::londefdef::table[-1]{'counter_columns'}; $col++) {
2417: $min_nested_width += $min_len[$col];
2418: $max_nested_width += $max_len[$col];
1.300 foxr 2419:
1.294 foxr 2420: }
2421: # Fudge in an extra 5 mm for borders etc:
2422:
2423: $min_nested_width += 5;
2424: $max_nested_width += 5;
2425:
2426: my $outer_column = $Apache::londefdef::table[-2]{'counter_columns'};
2427: my $outer_row = $Apache::londefdef::table[-2]{'row_number'};
2428: if ($min_nested_width > $Apache::londefdef::table[-2]{'minlen'}[$outer_row][$outer_column]) {
2429: $Apache::londefdef::table[-2]{'minlen'}[$outer_row][$outer_column] = $min_nested_width;
2430: }
2431: if ($max_nested_width > $Apache::londefdef::table[-2]{'maxlen'}[$outer_row][$outer_column]) {
2432: $Apache::londefdef::table[-2]{'maxlen'}[$outer_row][$outer_column] = $max_nested_width;
2433: }
2434:
1.127 sakharuk 2435: pop @Apache::londefdef::table;
1.129 sakharuk 2436: push @{$Apache::londefdef::table[-1]{'include'}}, $inmemory;
1.127 sakharuk 2437: } else {
2438: $currentstring .= $Apache::londefdef::table[-1]{'output'};
2439: pop @Apache::londefdef::table;
1.143 sakharuk 2440: undef @Apache::londefdef::table;
1.127 sakharuk 2441: }
1.122 albertel 2442: }
2443: return $currentstring;
2444: }
2445:
1.166 sakharuk 2446: #-- <tr> tag (end tag optional)
1.122 albertel 2447: sub start_tr {
2448: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2449: my $currentstring = '';
1.325 albertel 2450: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2451: $currentstring = $token->[4];
2452: } elsif ($target eq 'tex') {
2453: $Apache::londefdef::table[-1]{'row_number'}++;
1.206 sakharuk 2454: my $alignchar=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.122 albertel 2455: if ($alignchar ne '') {
1.206 sakharuk 2456: push @ {$Apache::londefdef::table[-1]{'rows'} },substr($alignchar,0,1);
1.122 albertel 2457: } else {
2458: push @ {$Apache::londefdef::table[-1]{'rows'} }, 'l';
2459: }
2460: push ( @{ $Apache::londefdef::table[-1]{'rowdata'} }, $Apache::londefdef::table[-1]{'hinc'});
1.300 foxr 2461: #
2462: # Need to save the number of table columns to preserve the max # columns.
2463: #
2464: $Apache::londefdef::table[-1]{'prior_columns'} = $Apache::londefdef::table[-1]{'counter_columns'};
1.122 albertel 2465: $Apache::londefdef::table[-1]{'counter_columns'} = -1;
1.206 sakharuk 2466: push @ {$Apache::londefdef::table[-1]{'TeXlen'}}, [];
2467: push @ {$Apache::londefdef::table[-1]{'objectlen'}}, [];
2468: push @ {$Apache::londefdef::table[-1]{'minlen'}}, [];
2469: push @ {$Apache::londefdef::table[-1]{'maxlen'}}, [];
2470: push @ {$Apache::londefdef::table[-1]{'content'}}, [];
1.122 albertel 2471: }
2472: return $currentstring;
2473: }
2474:
2475: sub end_tr {
1.160 sakharuk 2476: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 2477: my $currentstring = &end_p(); # Close any pending <p> in the row.
1.325 albertel 2478: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 2479: $currentstring .= $token->[2];
1.122 albertel 2480: } elsif ($target eq 'tex') {
1.160 sakharuk 2481: if ($Apache::londefdef::TD_redirection) {
2482: &end_td_tex($parstack,$parser,$safeeval);
2483: }
1.300 foxr 2484: # Counter columns must be the maximum number of columns seen
2485: # in the table so far so:
2486: if ($Apache::londefdef::table[-1]{'prior_columns'} > $Apache::londefdef::table[-1]{'counter_columns'}) {
2487: $Apache::londefdef::table[-1]{'counter_columns'} = $Apache::londefdef::table[-1]{'prior_columns'};
2488: }
1.295 foxr 2489:
2490:
1.294 foxr 2491:
1.122 albertel 2492: }
2493: return $currentstring;
2494: }
2495:
1.166 sakharuk 2496: #-- <td> tag (end tag optional)
1.122 albertel 2497: sub start_td {
2498: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2499: my $currentstring = '';
1.325 albertel 2500: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2501: $currentstring = $token->[4];
2502: } elsif ($target eq 'tex') {
1.160 sakharuk 2503: $Apache::londefdef::TD_redirection = 1;
1.159 sakharuk 2504: &tag_check('tr','td',$tagstack,$parstack,$parser,$safeeval);
1.122 albertel 2505: }
2506: return $currentstring;
2507: }
1.159 sakharuk 2508:
2509: sub tag_check {
2510: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
1.160 sakharuk 2511: my @ar=@$parstack;
2512: for (my $i=$#ar-1;$i>=0;$i--) {
2513: if (lc($$tagstack[$i]) eq $good_tag) {
2514: &start_td_tex($parstack,$parser,$safeeval);
2515: last;
2516: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2517: splice @ar, $i+1;
2518: &end_td_tex(\@ar,$parser,$safeeval);
2519: &start_td_tex($parstack,$parser,$safeeval);
2520: last;
1.159 sakharuk 2521: }
1.160 sakharuk 2522: }
1.159 sakharuk 2523: return '';
2524: }
2525:
2526: sub start_td_tex {
2527: my ($parstack,$parser,$safeeval) = @_;
1.206 sakharuk 2528: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2529: if ($alignchar eq '') {
2530: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
1.159 sakharuk 2531: }
1.206 sakharuk 2532: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
1.159 sakharuk 2533: $Apache::londefdef::table[-1]{'counter_columns'}++;
1.206 sakharuk 2534: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2535: if (defined $TeXwidth) {
2536: my $current_length=&recalc($TeXwidth);
2537: $current_length=~/(\d+\.?\d*)/;
2538: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2539: }
1.159 sakharuk 2540: &Apache::lonxml::startredirection();
2541: return '';
2542: }
2543:
2544: sub end_td_tex {
2545: my ($parstack,$parser,$safeeval) = @_;
1.304 foxr 2546: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2547: my $current_column = $Apache::londefdef::table[-1]{'counter_columns'};
1.303 foxr 2548: my $data = &Apache::lonxml::endredirection();
2549:
1.305 foxr 2550: # The rowspan array of the table indicates which cells are part of a span.
2551: # n indicates the start of a span set of n rows.
2552: # ^ indicates a cell that continues a span set.
1.306 foxr 2553: # _ indicates the cell is at the bottom of a span set.
1.305 foxr 2554: # If this and subsequent cells are part of a rowspan, we must
2555: # push along the row until we find one that is not.
2556:
2557: while ((defined $Apache::londefdef::table[-1]{'rowspan'}[$current_row] [$current_column])
1.306 foxr 2558: && ($Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column] =~ /[\^\_]/)) {
1.305 foxr 2559: # Part of a span.
2560: push @ {$Apache::londefdef::table[-1]{'content'}[-1]}, '';
2561: $current_column++;
2562: }
2563: $Apache::londefdef::table[-1]{'counter_columns'} = $current_column;
2564:
2565:
1.320 foxr 2566: # Get the column and row spans.
2567: # Colspan can be done via \multicolumn if I can figure out the data structs.
2568:
2569: my $colspan = &Apache::lonxml::get_param('colspan', $parstack, $safeeval, undef, 0);
2570: if (!$colspan) {
2571: $colspan = 1;
2572: }
1.305 foxr 2573:
2574: my $rowspan = &Apache::lonxml::get_param('rowspan', $parstack, $safeeval, undef, 0);
2575: if (!$rowspan) {
2576: $rowspan = 1;
2577: }
2578:
1.303 foxr 2579:
1.305 foxr 2580:
1.320 foxr 2581: for (my $c = 0; $c < $colspan; $c++) {
2582: $Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column+$c] = $rowspan;
2583: for (my $i = 1; $i < $rowspan; $i++) {
2584: $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column+$c] = '^';
2585: if ($i == ($rowspan-1)) {
2586: $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column+$c] = '_';
2587: }
1.306 foxr 2588: }
1.305 foxr 2589: }
1.304 foxr 2590:
1.159 sakharuk 2591: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2592: if (defined $TeXwidth) {
1.357 foxr 2593: for (my $c = 0; $c < $colspan; $c++) {
2594: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2595: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2596: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2597: }
1.159 sakharuk 2598: } else {
1.206 sakharuk 2599: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2600: my $garbage_data=$data;
2601: my $fwidth=0;
2602: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2603: my $current_length=&recalc($1);
2604: $current_length=~/(\d+\.?\d*)/;
2605: if ($fwidth<$1) {$fwidth=$1;}
2606: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2607: }
2608: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2609: my $current_length=$1;
2610: if ($fwidth<$current_length) {$fwidth=$current_length;}
2611: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2612: }
1.357 foxr 2613: for (my $c = 0; $c < $colspan; $c++) {
2614: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2615: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2616: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2617: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2618: }
1.231 sakharuk 2619: } 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)*/) {
2620: my $garbage_data=$data;
2621: my $fwidth=0;
2622: while ($garbage_data=~/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)\s*\}/) {
2623: my $current_length=&recalc($1);
2624: $current_length=~/(\d+\.?\d*)/;
2625: if ($fwidth<$1) {$fwidth=$1;}
2626: $garbage_data=~s/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2627: }
2628: while ($garbage_data=~/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2629: my $current_length=&recalc($1);
2630: $current_length=~/(\d+\.?\d*)/;
2631: if ($fwidth<$1) {$fwidth=$1;}
2632: $garbage_data=~s/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2633: }
1.357 foxr 2634: for (my $c = 0; $c < $colspan; $c++) {
2635: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2636: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2637: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2638: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2639: }
1.231 sakharuk 2640: $data=~s/\\\\\s*$//;
1.159 sakharuk 2641: } else {
1.166 sakharuk 2642: $data=~s/^\s+(\S.*)/$1/;
1.159 sakharuk 2643: $data=~s/(.*\S)\s+$/$1/;
1.166 sakharuk 2644: $data=~s/(\s)+/$1/;
1.206 sakharuk 2645: my ($current_length,$min_length)=(0,0);
1.166 sakharuk 2646: if ($data=~/\\vskip/) {
2647: my $newdata=$data;
2648: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2649: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2650: foreach my $elementdata (@newdata) {
1.206 sakharuk 2651: my $lengthnewdata=2.5*&LATEX_length($elementdata);
1.166 sakharuk 2652: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
1.206 sakharuk 2653: my @words=split(/ /,$elementdata);
2654: foreach my $word (@words) {
2655: my $lengthword=2.5*&LATEX_length($word);
2656: if ($min_length<$lengthword) {$min_length=$lengthword;}
2657: }
1.166 sakharuk 2658: }
2659: } else {
1.206 sakharuk 2660: $current_length=2.5*&LATEX_length($data);
2661: my @words=split(/ /,$data);
2662: foreach my $word (@words) {
1.228 sakharuk 2663: my $lengthword=2*&LATEX_length($word);
1.206 sakharuk 2664: if ($min_length<$lengthword) {$min_length=$lengthword;}
2665: }
1.166 sakharuk 2666: }
1.357 foxr 2667: for (my $c = 0; $c < $colspan; $c++) {
2668: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2669: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2670: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2671: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
2672: }
1.159 sakharuk 2673: }
2674: }
1.302 foxr 2675: # Substitute all of the tables nested in this cell in their appropriate places.
2676:
2677:
2678: my $nested_count = $#{$Apache::londefdef::table[-1]{'include'}}; # This one is constant...
2679: for (my $in=0; $in<=$nested_count; $in++) {
1.301 foxr 2680: my $nested = shift @{$Apache::londefdef::table[-1]{'include'}};
2681: $nested =~ s/\\end\{tabular\}\\strut\\\\/\\end\{tabular\}/;
2682: # $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2683: $data =~ s/\\keephidden\{NEW TABLE ENTRY\}/$nested/;
2684:
2685: }
2686: # Should be be killing off the 'include' elements as they're used up?
1.305 foxr 2687:
1.206 sakharuk 2688: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
1.305 foxr 2689:
1.304 foxr 2690:
2691:
2692:
2693: # the colspan array will indicate how many columns will be spanned by this
2694: # cell..this requires that counter_columns also be adjusted accordingly
2695: # so that the next bunch of text goes in the right cell. Note that since
2696: # counter_columns is incremented in the start_td_tex, we adjust by colspan-1.
2697: #
2698:
2699: $Apache::londefdef::table[-1]{'counter_columns'} += $colspan -1;
2700: for (my $i = 0; $i < ($colspan -1); $i++) {
2701: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },'';
2702: }
1.320 foxr 2703: for (my $r = 0; $r < $rowspan; $r++) {
2704: $Apache::londefdef::table[-1]{'colspan'}[$current_row+$r][$current_column] = $colspan;
2705: # Put empty text in spanned cols.
2706:
2707: }
2708:
1.304 foxr 2709:
2710:
1.301 foxr 2711: return '';
1.159 sakharuk 2712: }
2713:
1.122 albertel 2714: sub end_td {
1.126 sakharuk 2715: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 2716: my $currentstring = '';
1.325 albertel 2717: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2718: $currentstring = $token->[2];
2719: } elsif ($target eq 'tex') {
1.160 sakharuk 2720: $Apache::londefdef::TD_redirection =0;
1.159 sakharuk 2721: &end_td_tex($parstack,$parser,$safeeval);
1.122 albertel 2722: }
2723: return $currentstring;
2724: }
2725:
1.166 sakharuk 2726: #-- <th> tag (end tag optional)
1.122 albertel 2727: sub start_th {
2728: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2729: my $currentstring = '';
1.325 albertel 2730: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2731: $currentstring = $token->[4];
2732: } elsif ($target eq 'tex') {
1.230 sakharuk 2733: $Apache::londefdef::TD_redirection = 1;
2734: &tagg_check('tr','th',$tagstack,$parstack,$parser,$safeeval);
1.122 albertel 2735: }
2736: return $currentstring;
1.130 sakharuk 2737: }
1.230 sakharuk 2738:
2739: sub tagg_check {
2740: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
2741: my @ar=@$parstack;
2742: for (my $i=$#ar-1;$i>=0;$i--) {
2743: if (lc($$tagstack[$i]) eq $good_tag) {
2744: &start_th_tex($parstack,$parser,$safeeval);
2745: last;
2746: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2747: splice @ar, $i+1;
2748: &end_th_tex(\@ar,$parser,$safeeval);
2749: &start_th_tex($parstack,$parser,$safeeval);
2750: last;
2751: }
2752: }
2753: return '';
2754: }
2755:
2756: sub start_th_tex {
2757: my ($parstack,$parser,$safeeval) = @_;
2758: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2759: if ($alignchar eq '') {
2760: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
2761: }
2762: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
2763: $Apache::londefdef::table[-1]{'counter_columns'}++;
2764: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2765: if (defined $TeXwidth) {
2766: my $current_length=&recalc($TeXwidth);
2767: $current_length=~/(\d+\.?\d*)/;
2768: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2769: }
2770: &Apache::lonxml::startredirection();
2771: return '';
2772: }
2773:
2774: sub end_th_tex {
2775: my ($parstack,$parser,$safeeval) = @_;
2776: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2777: my $data=&Apache::lonxml::endredirection();
2778: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2779: if (defined $TeXwidth) {
2780: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2781: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2782: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2783: } else {
2784: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2785: my $garbage_data=$data;
2786: my $fwidth=0;
2787: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2788: my $current_length=&recalc($1);
2789: $current_length=~/(\d+\.?\d*)/;
2790: if ($fwidth<$1) {$fwidth=$1;}
2791: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2792: }
2793: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2794: my $current_length=$1;
2795: if ($fwidth<$current_length) {$fwidth=$current_length;}
2796: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2797: }
2798: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2799: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2800: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2801: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2802: } else {
2803: $data=~s/^\s+(\S.*)/$1/;
2804: $data=~s/(.*\S)\s+$/$1/;
2805: $data=~s/(\s)+/$1/;
2806: my ($current_length,$min_length)=(0,0);
2807: if ($data=~/\\vskip/) {
2808: my $newdata=$data;
2809: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2810: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2811: foreach my $elementdata (@newdata) {
2812: my $lengthnewdata=2.5*&LATEX_length($elementdata);
2813: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
2814: my @words=split(/ /,$elementdata);
2815: foreach my $word (@words) {
2816: my $lengthword=2.5*&LATEX_length($word);
2817: if ($min_length<$lengthword) {$min_length=$lengthword;}
2818: }
2819: }
2820: } else {
2821: $current_length=2.5*&LATEX_length($data);
2822: my @words=split(/ /,$data);
2823: foreach my $word (@words) {
2824: my $lengthword=2*&LATEX_length($word);
2825: if ($min_length<$lengthword) {$min_length=$lengthword;}
2826: }
2827: }
2828: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2829: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2830: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2831: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
2832: }
2833: }
2834: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
2835: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2836: }
2837: #make data bold
2838: $data='\textbf{'.$data.'}';
2839: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
2840: return'';
2841: }
2842:
1.122 albertel 2843: sub end_th {
1.130 sakharuk 2844: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 2845: my $currentstring = &end_p(); # Close any open <p> in the row.
1.325 albertel 2846: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 2847: $currentstring .= $token->[2];
1.122 albertel 2848: } elsif ($target eq 'tex') {
1.230 sakharuk 2849: $Apache::londefdef::TD_redirection =0;
2850: &end_th_tex($parstack,$parser,$safeeval);
1.122 albertel 2851: }
2852: return $currentstring;
2853: }
1.230 sakharuk 2854:
1.181 sakharuk 2855: #-- <img> tag (end tag forbidden)
1.249 foxr 2856: #
2857: # Render the <IMG> tag.
2858: # <IMG> has the following attributes (in addition to the
2859: # standard HTML ones:
2860: # TeXwrap - Governs how the tex target will try to wrap text around
2861: # horizontally aligned images.
2862: # TeXwidth - The width of the image when rendered for print (mm).
2863: # TeXheight - The height of the image when rendered for print (mm)
2864: # (Note there seems to also be support for this as a % of page size)
2865: #
1.122 albertel 2866: sub start_img {
1.299 albertel 2867: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 2868: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,
2869: undef,1);
1.325 albertel 2870: if (! $src &&
2871: ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex')
2872: ) {
1.299 albertel 2873: my $inside = &Apache::lonxml::get_all_text("/img",$parser,$style);
1.189 albertel 2874: return '';
2875: }
1.290 albertel 2876: &Apache::lonxml::extlink($src);
1.122 albertel 2877: my $currentstring = '';
2878: my $scaling = .3;
1.249 foxr 2879:
2880: # Render unto browsers that which are the browser's...
2881:
1.325 albertel 2882: if ($target eq 'web' || $target eq 'webgrade') {
1.267 albertel 2883: if ($env{'browser.imagesuppress'} ne 'on') {
1.322 albertel 2884: my $enc = ('yes' eq
2885: lc(&Apache::lonxml::get_param('encrypturl',$parstack,
2886: $safeeval)));
2887: $currentstring.=&Apache::lonenc::encrypt_ref($token,{'src'=>$src},
2888: $enc);
1.122 albertel 2889: } else {
1.322 albertel 2890: my $alttag = &Apache::lonxml::get_param('alt',$parstack,$safeeval,
2891: undef,1);
2892: if (!$alttag) {
2893: $alttag = &Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2894: $src);
1.51 sakharuk 2895: }
1.158 sakharuk 2896: $currentstring.='[IMAGE: '.$alttag.']';
1.1 sakharuk 2897: }
1.249 foxr 2898:
2899: # and render unto TeX that which is LaTeX
2900:
1.122 albertel 2901: } elsif ($target eq 'tex') {
1.248 foxr 2902: #
2903: # The alignment will require some superstructure to be put around
2904: # the \includegraphics stuff. At present we can only partially
2905: # simulate the alignments offered by html.
2906: #
2907: #
2908: my $align = lc(&Apache::lonxml::get_param('align',
2909: $parstack,
2910: $safeeval,
2911: undef,1));
2912: if(!$align) {
1.287 foxr 2913: $align = "bottom"; # This is html's default so it's ours too.
1.248 foxr 2914: }
2915: #
2916: &Apache::lonxml::debug("Alignemnt = $align");
2917: # LaTeX's image/text wrapping is really bad since it wants to
2918: # make figures float.
2919: # The user has the optional parameter (applicable only to l/r
2920: # alignment to use the picins/parpic directive to get wrapped text
2921: # this is also imperfect.. that's why we give them a choice...
2922: # so they can't yell at us for our choice.
2923: #
2924: my $latex_rendering = &Apache::lonxml::get_param('TeXwrap',
2925: $parstack,
2926: $safeeval,
2927: undef,0);
1.312 foxr 2928: # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering");
1.248 foxr 2929: if(!$latex_rendering) {
1.312 foxr 2930: $latex_rendering = "texwrap";
2931: }
2932: # using texwrap inside a table does not work. So, if after all of this,
2933: # texwrap is on, we turn it off if we detect we're in a table:
2934: #
2935: if (($latex_rendering eq 'texwrap') && &is_inside_of($tagstack, "table")) {
2936: $latex_rendering = 'parpic';
1.248 foxr 2937: }
1.323 foxr 2938:
1.312 foxr 2939: # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering image file: $src");
1.248 foxr 2940:
1.256 albertel 2941: #if original gif/jpg/png file exist do following:
1.266 albertel 2942: my $origsrc=$src;
1.256 albertel 2943: my ($path,$file) = &get_eps_image($src);
1.341 foxr 2944: # &Apache::lonnet::logthis("Image source: $src result: $path $file");
1.122 albertel 2945: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.261 foxr 2946: &Apache::lonxml::debug("path = $path file = $file src = $src");
1.192 sakharuk 2947: if (-e $src) {
1.261 foxr 2948: &Apache::lonxml::debug("$src exists");
1.256 albertel 2949: my ($height_param,$width_param)=
1.266 albertel 2950: &image_size($origsrc,0.3,$parstack,$safeeval);
2951: my $size;
2952: if ($width_param) { $size.='width='.$width_param.' mm,'; }
2953: if ($height_param) { $size.='height='.$height_param.' mm]'; }
1.341 foxr 2954: # Default size if not able to extract that (e.g. eps image).
2955:
2956: # &Apache::lonnet::logthis("Size = $size");
2957:
1.266 albertel 2958: $size='['.$size;
2959: $size=~s/,$/]/;
1.344 albertel 2960: $currentstring .= '\graphicspath{{'.$path.'}}'
2961: .'\includegraphics'.$size.'{'.$file.'} ';
1.354 foxr 2962: my $closure;
2963: ($currentstring, $closure) = &align_latex_image($align,
2964: $latex_rendering,
2965: $currentstring,
2966: $width_param,
2967: $height_param);
2968: $currentstring .= $closure;
1.353 foxr 2969:
1.122 albertel 2970: } else {
1.261 foxr 2971: &Apache::lonxml::debug("$src does not exist");
1.122 albertel 2972: #original image file doesn't exist so check the alt attribute
2973: my $alt =
2974: &Apache::lonxml::get_param('alt',$parstack,$safeeval,undef,1);
2975: unless ($alt) {
2976: $alt=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
2977: }
2978:
1.256 albertel 2979: if ($alt) { $currentstring .= ' '.$alt.' '; }
1.59 sakharuk 2980: }
1.249 foxr 2981:
2982: # And here's where the semi-quote breaks down: allow the user
2983: # to edit the beast as well by rendering the problem for edit:
1.186 albertel 2984: } elsif ($target eq 'edit') {
2985: $currentstring .=&Apache::edit::tag_start($target,$token);
2986: $currentstring .=&Apache::edit::text_arg('Image Url:','src',$token,70).
2987: &Apache::edit::browse('src',undef,'alt').' '.
2988: &Apache::edit::search('src',undef,'alt').'<br />';
2989: $currentstring .=&Apache::edit::text_arg('Description:','alt',$token,70).'<br />';
2990: $currentstring .=&Apache::edit::text_arg('width (pixel):','width',$token,5);
2991: $currentstring .=&Apache::edit::text_arg('height (pixel):','height',$token,5).'<br />';
2992: $currentstring .=&Apache::edit::text_arg('TeXwidth (mm):','TeXwidth',$token,5);
2993: $currentstring .=&Apache::edit::text_arg('TeXheight (mm):','TeXheight',$token,5);
1.234 albertel 2994: $currentstring .=&Apache::edit::select_arg('Alignment:','align',
2995: ['','bottom','middle','top','left','right'],$token,5);
1.249 foxr 2996: $currentstring .=&Apache::edit::select_arg('TeXwrap:', 'TeXwrap',
1.348 albertel 2997: ['', 'none','parbox', 'parpic', 'wrapfigure'], $token, 2);
1.332 www 2998: $currentstring .=&Apache::edit::select_arg('Encrypt URL:','encrypturl',
1.322 albertel 2999: ['no','yes'], $token, 2);
1.186 albertel 3000: $currentstring .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1.249 foxr 3001: my $src= &Apache::lonxml::get_param('src',$parstack,$safeeval);
3002: my $alt= &Apache::lonxml::get_param('alt',$parstack,$safeeval);
3003: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
3004: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
3005:
3006:
1.186 albertel 3007: $currentstring .= '<img src="'.$src.'" alt="'.$alt.'" ';
3008: if ($width) { $currentstring.=' width="'.$width.'" '; }
3009: if ($height) { $currentstring.=' height="'.$height.'" '; }
3010: $currentstring .= ' />';
3011: } elsif ($target eq 'modified') {
1.210 albertel 3012: my ($osrc,$owidth,$oheight)=
3013: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
3014: my $ctag=&Apache::edit::get_new_args($token,$parstack,
1.234 albertel 3015: $safeeval,'src','alt','align',
1.249 foxr 3016: 'TeXwidth','TeXheight', 'TeXwrap',
1.322 albertel 3017: 'width','height','encrypturl');
1.210 albertel 3018: my ($nsrc,$nwidth,$nheight)=
3019: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
3020: my $loc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$nsrc);
3021: &image_replication($loc);
3022: my ($iwidth,$iheight);
3023: if (-e $loc) {
3024: my $image = Image::Magick->new;
3025: $image->Read($loc);
3026: ($iwidth, $iheight) = ($image->Get('width'),
3027: $image->Get('height'));
3028: }
3029: if ($osrc ne $nsrc || (!$nwidth && !$nheight)) {
3030: # changed image or no size specified,
3031: # if they didn't explicitly change the
3032: # width or height use the ones from the image
3033: if ($iwidth && $iheight) {
3034: if ($owidth == $nwidth || (!$nwidth && !$nheight)) {
3035: $token->[2]{'width'} = $iwidth;$ctag=1;
3036: }
3037: if ($oheight == $nheight || (!$nwidth && !$nheight)) {
3038: $token->[2]{'height'}=$iheight;$ctag=1;
1.186 albertel 3039: }
3040: }
3041: }
1.210 albertel 3042: my ($cwidth,$cheight)=($token->[2]{'width'},$token->[2]{'height'});
3043: # if we don't have a width or height
3044: if ($iwidth && $cwidth && !$cheight) {
3045: $token->[2]{'height'}=int(($cwidth/$iwidth)*$iheight);$ctag=1;
3046: }
3047: if ($iheight && $cheight && !$cwidth) {
3048: $token->[2]{'width'}=int(($cheight/$iheight)*$iwidth);$ctag=1;
3049: }
3050: if ($ctag) {$currentstring=&Apache::edit::rebuild_tag($token);}
1.122 albertel 3051: }
1.261 foxr 3052:
1.122 albertel 3053: return $currentstring;
3054: }
3055:
3056: sub end_img {
3057: my ($target,$token) = @_;
3058: my $currentstring = '';
1.325 albertel 3059: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3060: $currentstring = $token->[2];
3061: } elsif ($target eq 'tex') {
3062: $currentstring = '';
3063: }
3064: return $currentstring;
3065: }
3066:
1.181 sakharuk 3067: #-- <applet> tag (end tag required)
1.122 albertel 3068: sub start_applet {
3069: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3070:
3071: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,undef,1);
1.290 albertel 3072: &Apache::lonxml::extlink($code);
1.122 albertel 3073: my $archive=&Apache::lonxml::get_param('archive',$parstack,$safeeval,
3074: undef,1);
1.290 albertel 3075: &Apache::lonxml::extlink($archive);
1.122 albertel 3076: my $currentstring = '';
1.325 albertel 3077: if ($target eq 'web' || $target eq 'webgrade') {
1.267 albertel 3078: if ($env{'browser.appletsuppress'} ne 'on') {
1.250 albertel 3079: $currentstring = &Apache::lonenc::encrypt_ref($token,
3080: {'code'=>$code,
3081: 'archive'=>$archive}
3082: );
1.122 albertel 3083: } else {
3084: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
3085: $safeeval,undef,1);
3086: unless ($alttag) {
3087: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
3088: $code);
1.44 sakharuk 3089: }
1.122 albertel 3090: $currentstring='[APPLET: '.$alttag.']';
1.1 sakharuk 3091: }
1.122 albertel 3092: } elsif ($target eq 'tex') {
1.361 ! foxr 3093: # Turn off some stuff we can't be inside thank you LaTeX
! 3094:
! 3095:
! 3096: my $restart_sub = 0;
! 3097: my $restart_sup = 0;
! 3098:
! 3099: # Since <sub> and <sup> are simple tags it's ok to turn off/on
! 3100: # using the start_ stop_ functions.. those tags only care about
! 3101: # $target.
! 3102:
! 3103: if (&is_inside_of($tagstack, "sub")) {
! 3104: $restart_sub = 1;
! 3105: $currentstring .= &end_sub($target, $token, $tagstack,
! 3106: $parstack, $parser, $safeeval);
! 3107: }
! 3108: if (&is_inside_of($tagstack, "sup")) {
! 3109: $restart_sup = 1;
! 3110: $currentstring .= &end_sup($target, $token, $tagstack,
! 3111: $parstack, $parser, $safeeval);
! 3112: }
! 3113:
! 3114: # Now process the applet; just replace it with its alt attribute.
! 3115:
1.177 albertel 3116: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
3117: $safeeval,undef,1);
3118: unless ($alttag) {
3119: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,
3120: undef,1);
3121: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
3122: $code);
1.175 sakharuk 3123: }
1.177 albertel 3124: $currentstring.='\begin{center} \fbox{Java Applet: '.$alttag.
3125: '.}\end{center}';
1.361 ! foxr 3126:
! 3127: # Turn stuff back on that we can't be inside of.
! 3128:
! 3129: if ($restart_sub) {
! 3130: $currentstring .= &start_sub($target, $token, $tagstack,
! 3131: $parstack, $parser, $safeeval);
! 3132: }
! 3133: if ($restart_sup) {
! 3134: $currentstring .= &start_sup($target, $token, $tagstack,
! 3135: $parstack, $parser, $safeeval);
! 3136: }
1.122 albertel 3137: }
3138: return $currentstring;
3139: }
3140:
3141: sub end_applet {
3142: my ($target,$token) = @_;
3143: my $currentstring = '';
1.325 albertel 3144: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3145: $currentstring = $token->[2];
3146: } elsif ($target eq 'tex') {
3147: }
3148: return $currentstring;
3149: }
3150:
1.181 sakharuk 3151: #-- <embed> tag (end tag optional/required)
1.122 albertel 3152: sub start_embed {
3153: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3154: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
1.290 albertel 3155: &Apache::lonxml::extlink($src);
1.122 albertel 3156: my $currentstring = '';
1.325 albertel 3157: if ($target eq 'web' || $target eq 'webgrade') {
1.267 albertel 3158: if ($env{'browser.embedsuppress'} ne 'on') {
1.250 albertel 3159: $currentstring=&Apache::lonenc::encrypt_ref($token,{'src'=>$src});
1.122 albertel 3160: } else {
3161: my $alttag=&Apache::lonxml::get_param
3162: ('alt',$parstack,$safeeval,undef,1);
3163: unless ($alttag) {
3164: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
1.42 albertel 3165: }
1.122 albertel 3166: $currentstring='[EMBED: '.$alttag.']';
1.10 www 3167: }
1.122 albertel 3168: } elsif ($target eq 'tex') {
3169: }
3170: return $currentstring;
3171: }
3172:
3173: sub end_embed {
3174: my ($target,$token) = @_;
3175: my $currentstring = '';
1.325 albertel 3176: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3177: $currentstring = $token->[2];
1.175 sakharuk 3178: } elsif ($target eq 'tex') {
1.122 albertel 3179: }
3180: return $currentstring;
3181: }
3182:
1.181 sakharuk 3183: #-- <param> tag (end tag forbidden)
1.122 albertel 3184: sub start_param {
3185: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.290 albertel 3186: if (&Apache::lonxml::get_param('name',$parstack,
3187: $safeeval,undef,1)=~/^cabbase$/i) {
3188: my $value=&Apache::lonxml::get_param('value',$parstack,
3189: $safeeval,undef,1);
3190: &Apache::lonxml::extlink($value);
3191: }
3192:
3193: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
3194: &Apache::lonxml::extlink($src);
1.122 albertel 3195: my $currentstring = '';
1.325 albertel 3196: if ($target eq 'web' || $target eq 'webgrade') {
1.250 albertel 3197: my %toconvert;
3198: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
3199: if ($src) { $toconvert{'src'}= $src; }
3200: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval,
3201: undef,1);
1.251 albertel 3202: if ($name=~/^cabbase$/i) {
3203: $toconvert{'value'}=&Apache::lonxml::get_param('value',$parstack,
3204: $safeeval,undef,1);
3205: }
1.250 albertel 3206: $currentstring = &Apache::lonenc::encrypt_ref($token,\%toconvert);
1.122 albertel 3207: } elsif ($target eq 'tex') {
3208: }
3209: return $currentstring;
3210: }
3211:
3212: sub end_param {
3213: my ($target,$token) = @_;
3214: my $currentstring = '';
1.325 albertel 3215: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3216: $currentstring = $token->[2];
3217: } elsif ($target eq 'tex') {
3218: }
3219: return $currentstring;
3220: }
3221:
3222: #-- <allow> tag
3223: sub start_allow {
3224: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3225: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
1.290 albertel 3226: &Apache::lonxml::extlink($src);
3227:
1.241 albertel 3228: if ($target eq 'tex') { &image_replication($src); }
1.122 albertel 3229: my $result;
3230: if ($target eq 'edit') {
3231: $result .=&Apache::edit::tag_start($target,$token);
3232: $result .=&Apache::edit::text_arg('File Spec:','src',$token,70);
3233: $result .=&Apache::edit::end_row();#.&Apache::edit::start_spanning_row();
3234: } elsif ($target eq 'modified') {
3235: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
3236: $safeeval,'src');
3237: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
3238: }
3239: return $result;
3240: }
3241:
3242: sub end_allow {
3243: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3244: if ( $target eq 'edit') { return (&Apache::edit::end_table()); }
3245: return '';
3246: }
1.119 www 3247:
1.181 sakharuk 3248: #-- Frames (end tag required)
3249: #-- <frameset>
1.122 albertel 3250: sub start_frameset {
3251: my ($target,$token) = @_;
1.277 foxr 3252: my $currentstring = ''; # Close any pending para.
1.325 albertel 3253: if ($target eq 'web' || $target eq 'webgrade') {
1.328 albertel 3254: $currentstring =
3255: &Apache::loncommon::start_page($Apache::londefdef::title,
3256: $Apache::londefdef::head,
3257: {'add_entries' => $token->[2],
3258: 'no_title' => 1,
3259: 'force_register' => 1,
3260: 'frameset' => 1,});
3261:
1.122 albertel 3262: }
3263: return $currentstring;
3264: }
3265:
3266: sub end_frameset {
3267: my ($target,$token) = @_;
3268: my $currentstring = '';
1.325 albertel 3269: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3270: $currentstring = $token->[2];
3271: }
3272: return $currentstring;
3273: }
1.162 sakharuk 3274:
1.181 sakharuk 3275: #-- <xmp> (end tag required)
1.162 sakharuk 3276: sub start_xmp {
3277: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3278: my $currentstring = '';
1.325 albertel 3279: if ($target eq 'web' || $target eq 'webgrade') {
1.162 sakharuk 3280: $currentstring .= $token->[4];
3281: } elsif ($target eq 'tex') {
3282: $currentstring .= '\begin{verbatim}';
3283: }
3284: return $currentstring;
3285: }
3286:
3287: sub end_xmp {
3288: my ($target,$token) = @_;
3289: my $currentstring = '';
1.325 albertel 3290: if ($target eq 'web' || $target eq 'webgrade') {
1.162 sakharuk 3291: $currentstring .= $token->[2];
3292: } elsif ($target eq 'tex') {
3293: $currentstring .= '\end{verbatim}';
3294: }
3295: return $currentstring;
3296: }
3297:
1.181 sakharuk 3298: #-- <pre> (end tag required)
1.122 albertel 3299: sub start_pre {
1.126 sakharuk 3300: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 3301: my $currentstring = &end_p(); # close off pending <p>
1.325 albertel 3302: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3303: $currentstring .= $token->[4];
3304: } elsif ($target eq 'tex') {
1.136 sakharuk 3305: $currentstring .= '\begin{verbatim}';
1.319 albertel 3306: &Apache::lonxml::disable_LaTeX_substitutions();
1.122 albertel 3307: }
3308: return $currentstring;
3309: }
3310:
3311: sub end_pre {
3312: my ($target,$token) = @_;
3313: my $currentstring = '';
1.325 albertel 3314: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3315: $currentstring .= $token->[2];
3316: } elsif ($target eq 'tex') {
1.136 sakharuk 3317: $currentstring .= '\end{verbatim}';
1.319 albertel 3318: &Apache::lonxml::enable_LaTeX_substitutions();
1.122 albertel 3319: }
3320: return $currentstring;
3321: }
3322:
3323: #-- <insert>
3324: sub start_insert {
3325: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3326: my $currentstring = '';
1.325 albertel 3327: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3328: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
3329: $currentstring .= '<b>'.$display.'</b>';;
3330: }
3331: return $currentstring;
3332: }
3333:
3334: sub end_insert {
3335: my ($target,$token) = @_;
3336: my $currentstring = '';
1.325 albertel 3337: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3338: $currentstring .= '';
3339: }
3340: return $currentstring;
3341: }
3342:
3343: #-- <externallink>
3344: sub start_externallink {
3345: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3346: my $currentstring = '';
1.325 albertel 3347: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3348: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
3349: $currentstring .= '<b>'.$display.'</b>';;
3350: }
3351: return $currentstring;
3352: }
3353:
3354: sub end_externallink {
3355: my ($target,$token) = @_;
3356: my $currentstring = '';
1.325 albertel 3357: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3358: $currentstring .= '';
3359: }
3360: return $currentstring;
3361: }
3362:
3363: #-- <blankspace heigth="">
3364: sub start_blankspace {
3365: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 3366: my $currentstring = &end_p(); # closes off any unclosed <p>
1.122 albertel 3367: if ($target eq 'tex') {
3368: my $howmuch = &Apache::lonxml::get_param('heigth',$parstack,$safeeval,undef,1);
3369: $currentstring .= '\vskip '.$howmuch.' ';
3370: }
3371: return $currentstring;
3372: }
3373:
3374: sub end_blankspace {
3375: my ($target,$token) = @_;
3376: my $currentstring = '';
3377: if ($target eq 'tex') {
3378: $currentstring .= '';
3379: }
3380: return $currentstring;
3381: }
3382:
1.181 sakharuk 3383: #-- <abbr> tag (end tag required)
1.122 albertel 3384: sub start_abbr {
3385: my ($target,$token) = @_;
3386: my $currentstring = '';
1.325 albertel 3387: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3388: $currentstring = $token->[4];
3389: }
3390: return $currentstring;
3391: }
3392:
3393: sub end_abbr {
3394: my ($target,$token) = @_;
3395: my $currentstring = '';
1.325 albertel 3396: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3397: $currentstring = $token->[2];
3398: }
3399: return $currentstring;
3400: }
3401:
1.181 sakharuk 3402: #-- <acronym> tag (end tag required)
1.122 albertel 3403: sub start_acronym {
3404: my ($target,$token) = @_;
3405: my $currentstring = '';
1.325 albertel 3406: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3407: $currentstring = $token->[4];
3408: }
3409: return $currentstring;
3410: }
3411:
3412: sub end_acronym {
3413: my ($target,$token) = @_;
3414: my $currentstring = '';
1.325 albertel 3415: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3416: $currentstring = $token->[2];
3417: }
3418: return $currentstring;
3419: }
3420:
1.181 sakharuk 3421: #-- <area> tag (end tag forbidden)
1.122 albertel 3422: sub start_area {
3423: my ($target,$token) = @_;
3424: my $currentstring = '';
1.325 albertel 3425: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3426: $currentstring = $token->[4];
3427: }
3428: return $currentstring;
3429: }
3430:
3431: sub end_area {
3432: my ($target,$token) = @_;
3433: my $currentstring = '';
1.325 albertel 3434: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3435: $currentstring = $token->[2];
3436: }
3437: return $currentstring;
3438: }
3439:
1.181 sakharuk 3440: #-- <base> tag (end tag forbidden)
1.122 albertel 3441: sub start_base {
3442: my ($target,$token) = @_;
3443: my $currentstring = '';
1.325 albertel 3444: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3445: $currentstring = $token->[4];
1.161 sakharuk 3446: }
1.122 albertel 3447: return $currentstring;
3448: }
3449:
3450: sub end_base {
3451: my ($target,$token) = @_;
3452: my $currentstring = '';
1.325 albertel 3453: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3454: $currentstring = $token->[2];
3455: }
3456: return $currentstring;
3457: }
3458:
1.181 sakharuk 3459: #-- <bdo> tag (end tag required)
1.122 albertel 3460: sub start_bdo {
3461: my ($target,$token) = @_;
3462: my $currentstring = '';
1.325 albertel 3463: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3464: $currentstring = $token->[4];
3465: }
3466: return $currentstring;
3467: }
3468:
3469: sub end_bdo {
3470: my ($target,$token) = @_;
3471: my $currentstring = '';
1.325 albertel 3472: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3473: $currentstring = $token->[2];
3474: }
3475: return $currentstring;
3476: }
3477:
1.181 sakharuk 3478: #-- <bgsound> tag (end tag optional)
1.122 albertel 3479: sub start_bgsound {
3480: my ($target,$token) = @_;
3481: my $currentstring = '';
1.325 albertel 3482: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3483: $currentstring = $token->[4];
3484: }
3485: return $currentstring;
3486: }
3487:
3488: sub end_bgsound {
3489: my ($target,$token) = @_;
3490: my $currentstring = '';
1.325 albertel 3491: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3492: $currentstring = $token->[2];
3493: }
3494: return $currentstring;
3495: }
3496:
1.181 sakharuk 3497: #-- <blink> tag (end tag required)
1.122 albertel 3498: sub start_blink {
3499: my ($target,$token) = @_;
3500: my $currentstring = '';
1.325 albertel 3501: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3502: $currentstring = $token->[4];
3503: }
3504: return $currentstring;
3505: }
3506:
3507: sub end_blink {
3508: my ($target,$token) = @_;
3509: my $currentstring = '';
1.325 albertel 3510: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3511: $currentstring = $token->[2];
3512: }
3513: return $currentstring;
3514: }
3515:
1.181 sakharuk 3516: #-- <blockquote> tag (end tag required)
1.122 albertel 3517: sub start_blockquote {
3518: my ($target,$token) = @_;
1.279 foxr 3519: my $currentstring = &end_p(); # Close any unclosed <p>
1.325 albertel 3520: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 3521: $currentstring .= $token->[4];
1.122 albertel 3522: }
1.339 foxr 3523: if ($target eq 'tex') {
3524: $currentstring .= '\begin{quote}';
3525: }
1.122 albertel 3526: return $currentstring;
3527: }
3528:
3529: sub end_blockquote {
3530: my ($target,$token) = @_;
3531: my $currentstring = '';
1.325 albertel 3532: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3533: $currentstring = $token->[2];
3534: }
1.339 foxr 3535: if ($target eq 'tex') {
3536: $currentstring = '\end{quote}';
3537: }
1.122 albertel 3538: return $currentstring;
3539: }
3540:
1.181 sakharuk 3541: #-- <button> tag (end tag required)
1.122 albertel 3542: sub start_button {
3543: my ($target,$token) = @_;
3544: my $currentstring = '';
1.325 albertel 3545: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3546: $currentstring = $token->[4];
3547: }
3548: return $currentstring;
3549: }
3550:
3551: sub end_button {
3552: my ($target,$token) = @_;
3553: my $currentstring = '';
1.325 albertel 3554: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3555: $currentstring = $token->[2];
3556: }
3557: return $currentstring;
3558: }
3559:
1.181 sakharuk 3560: #-- <caption> tag (end tag required)
1.122 albertel 3561: sub start_caption {
3562: my ($target,$token) = @_;
3563: my $currentstring = '';
1.325 albertel 3564: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3565: $currentstring = $token->[4];
3566: }
3567: return $currentstring;
3568: }
3569:
3570: sub end_caption {
3571: my ($target,$token) = @_;
3572: my $currentstring = '';
1.325 albertel 3573: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3574: $currentstring = $token->[2];
3575: }
3576: return $currentstring;
3577: }
3578:
1.181 sakharuk 3579: #-- <col> tag (end tag forbdden)
1.122 albertel 3580: sub start_col {
3581: my ($target,$token) = @_;
3582: my $currentstring = '';
1.325 albertel 3583: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3584: $currentstring = $token->[4];
3585: }
3586: return $currentstring;
3587: }
3588:
3589: sub end_col {
3590: my ($target,$token) = @_;
3591: my $currentstring = '';
1.325 albertel 3592: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3593: $currentstring = $token->[2];
3594: }
3595: return $currentstring;
3596: }
3597:
1.181 sakharuk 3598: #-- <colgroup> tag (end tag optional)
1.122 albertel 3599: sub start_colgroup {
3600: my ($target,$token) = @_;
3601: my $currentstring = '';
1.325 albertel 3602: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3603: $currentstring = $token->[4];
3604: }
3605: return $currentstring;
3606: }
3607:
3608: sub end_colgroup {
3609: my ($target,$token) = @_;
3610: my $currentstring = '';
1.325 albertel 3611: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3612: $currentstring = $token->[2];
3613: }
3614: return $currentstring;
3615: }
3616:
1.181 sakharuk 3617: #-- <del> tag (end tag required)
1.122 albertel 3618: sub start_del {
3619: my ($target,$token) = @_;
3620: my $currentstring = '';
1.325 albertel 3621: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3622: $currentstring = $token->[4];
3623: }
3624: return $currentstring;
3625: }
3626:
3627: sub end_del {
3628: my ($target,$token) = @_;
3629: my $currentstring = '';
1.325 albertel 3630: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3631: $currentstring = $token->[2];
3632: }
3633: return $currentstring;
3634: }
3635:
1.181 sakharuk 3636: #-- <fieldset> tag (end tag required)
1.122 albertel 3637: sub start_fieldset {
3638: my ($target,$token) = @_;
3639: my $currentstring = '';
1.325 albertel 3640: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3641: $currentstring = $token->[4];
3642: }
3643: return $currentstring;
3644: }
3645:
3646: sub end_fieldset {
3647: my ($target,$token) = @_;
3648: my $currentstring = '';
1.325 albertel 3649: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3650: $currentstring = $token->[2];
3651: }
3652: return $currentstring;
3653: }
3654:
1.181 sakharuk 3655: #-- <frame> tag (end tag forbidden)
1.122 albertel 3656: sub start_frame {
3657: my ($target,$token) = @_;
3658: my $currentstring = '';
1.325 albertel 3659: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3660: $currentstring = $token->[4];
3661: }
3662: return $currentstring;
3663: }
3664:
3665: sub end_frame {
3666: my ($target,$token) = @_;
3667: my $currentstring = '';
1.325 albertel 3668: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3669: $currentstring = $token->[2];
3670: }
3671: return $currentstring;
3672: }
3673:
1.181 sakharuk 3674: #-- <iframe> tag (end tag required)
1.122 albertel 3675: sub start_iframe {
3676: my ($target,$token) = @_;
3677: my $currentstring = '';
1.325 albertel 3678: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3679: $currentstring = $token->[4];
3680: }
3681: return $currentstring;
3682: }
3683:
3684: sub end_iframe {
3685: my ($target,$token) = @_;
3686: my $currentstring = '';
1.325 albertel 3687: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3688: $currentstring = $token->[2];
3689: }
3690: return $currentstring;
3691: }
3692:
1.181 sakharuk 3693: #-- <ins> tag (end tag required)
1.122 albertel 3694: sub start_ins {
3695: my ($target,$token) = @_;
3696: my $currentstring = '';
1.325 albertel 3697: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3698: $currentstring = $token->[4];
3699: }
3700: return $currentstring;
3701: }
3702:
3703: sub end_ins {
3704: my ($target,$token) = @_;
3705: my $currentstring = '';
1.325 albertel 3706: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3707: $currentstring = $token->[2];
3708: }
3709: return $currentstring;
3710: }
3711:
1.181 sakharuk 3712: #-- <isindex> tag (end tag forbidden)
1.122 albertel 3713: sub start_isindex {
3714: my ($target,$token) = @_;
3715: my $currentstring = '';
1.325 albertel 3716: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3717: $currentstring = $token->[4];
3718: }
3719: return $currentstring;
3720: }
3721:
3722: sub end_isindex {
3723: my ($target,$token) = @_;
3724: my $currentstring = '';
1.325 albertel 3725: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3726: $currentstring = $token->[2];
3727: }
3728: return $currentstring;
3729: }
3730:
1.181 sakharuk 3731: #-- <keygen> tag (end tag forbidden)
1.122 albertel 3732: sub start_keygen {
3733: my ($target,$token) = @_;
3734: my $currentstring = '';
1.325 albertel 3735: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3736: $currentstring = $token->[4];
3737: }
3738: return $currentstring;
3739: }
3740:
3741: sub end_keygen {
3742: my ($target,$token) = @_;
3743: my $currentstring = '';
1.325 albertel 3744: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3745: $currentstring = $token->[2];
3746: }
3747: return $currentstring;
3748: }
3749:
3750: #-- <label> tag
3751: sub start_label {
3752: my ($target,$token) = @_;
3753: my $currentstring = '';
1.325 albertel 3754: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3755: $currentstring = $token->[4];
3756: }
3757: return $currentstring;
3758: }
3759:
3760: sub end_label {
3761: my ($target,$token) = @_;
3762: my $currentstring = '';
1.325 albertel 3763: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3764: $currentstring = $token->[2];
3765: }
3766: return $currentstring;
3767: }
3768:
1.181 sakharuk 3769: #-- <layer> tag (end tag required)
1.122 albertel 3770: sub start_layer {
3771: my ($target,$token) = @_;
3772: my $currentstring = '';
1.325 albertel 3773: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3774: $currentstring = $token->[4];
3775: }
3776: return $currentstring;
3777: }
3778:
3779: sub end_layer {
3780: my ($target,$token) = @_;
3781: my $currentstring = '';
1.325 albertel 3782: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3783: $currentstring = $token->[2];
3784: }
3785: return $currentstring;
3786: }
3787:
1.181 sakharuk 3788: #-- <legend> tag (end tag required)
1.122 albertel 3789: sub start_legend {
3790: my ($target,$token) = @_;
3791: my $currentstring = '';
1.325 albertel 3792: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3793: $currentstring = $token->[4];
3794: }
3795: return $currentstring;
3796: }
3797:
3798: sub end_legend {
3799: my ($target,$token) = @_;
3800: my $currentstring = '';
1.325 albertel 3801: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3802: $currentstring = $token->[2];
3803: }
3804: return $currentstring;
3805: }
3806:
1.181 sakharuk 3807: #-- <link> tag (end tag forbidden)
1.122 albertel 3808: sub start_link {
1.292 albertel 3809: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 3810: my $currentstring = '';
1.324 albertel 3811: if ($target eq 'web' || $target eq 'webgrade') {
1.291 albertel 3812: my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
3813: undef,1);
3814: &Apache::lonxml::extlink($href);
1.122 albertel 3815: $currentstring = $token->[4];
3816: }
3817: return $currentstring;
3818: }
3819:
3820: sub end_link {
3821: my ($target,$token) = @_;
3822: my $currentstring = '';
1.325 albertel 3823: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3824: $currentstring = $token->[2];
3825: }
3826: return $currentstring;
3827: }
3828:
1.181 sakharuk 3829: #-- <marquee> tag (end tag optional)
1.122 albertel 3830: sub start_marquee {
3831: my ($target,$token) = @_;
3832: my $currentstring = '';
1.325 albertel 3833: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3834: $currentstring = $token->[4];
3835: }
3836: return $currentstring;
3837: }
3838:
3839: sub end_marquee {
3840: my ($target,$token) = @_;
3841: my $currentstring = '';
1.325 albertel 3842: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3843: $currentstring = $token->[2];
3844: }
3845: return $currentstring;
3846: }
3847:
1.179 sakharuk 3848: #-- <multicol> tag (end tag required)
3849: sub start_multicol {
1.122 albertel 3850: my ($target,$token) = @_;
1.279 foxr 3851: my $currentstring = &end_p(); # Close any pending <p>
1.325 albertel 3852: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 3853: $currentstring .= $token->[4];
1.122 albertel 3854: }
3855: return $currentstring;
3856: }
3857:
1.179 sakharuk 3858: sub end_multicol {
1.122 albertel 3859: my ($target,$token) = @_;
3860: my $currentstring = '';
1.325 albertel 3861: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3862: $currentstring = $token->[2];
3863: }
3864: return $currentstring;
3865: }
3866:
1.179 sakharuk 3867: #-- <nobr> tag (end tag required)
1.122 albertel 3868: sub start_nobr {
3869: my ($target,$token) = @_;
3870: my $currentstring = '';
1.325 albertel 3871: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3872: $currentstring = $token->[4];
1.179 sakharuk 3873: } elsif ($target eq 'tex') {
3874: $currentstring='\mbox{';
3875: }
1.122 albertel 3876: return $currentstring;
3877: }
3878:
3879: sub end_nobr {
3880: my ($target,$token) = @_;
3881: my $currentstring = '';
1.325 albertel 3882: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3883: $currentstring = $token->[2];
1.179 sakharuk 3884: } elsif ($target eq 'tex') {
3885: $currentstring='}';
3886: }
1.122 albertel 3887: return $currentstring;
3888: }
3889:
1.179 sakharuk 3890: #-- <noembed> tag (end tag required)
1.122 albertel 3891: sub start_noembed {
3892: my ($target,$token) = @_;
3893: my $currentstring = '';
1.325 albertel 3894: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3895: $currentstring = $token->[4];
3896: }
3897: return $currentstring;
3898: }
3899:
3900: sub end_noembed {
3901: my ($target,$token) = @_;
3902: my $currentstring = '';
1.325 albertel 3903: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3904: $currentstring = $token->[2];
3905: }
3906: return $currentstring;
3907: }
3908:
1.179 sakharuk 3909: #-- <noframes> tag (end tag required)
1.122 albertel 3910: sub start_noframes {
3911: my ($target,$token) = @_;
3912: my $currentstring = '';
1.325 albertel 3913: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3914: $currentstring = $token->[4];
3915: }
3916: return $currentstring;
3917: }
3918:
3919: sub end_noframes {
3920: my ($target,$token) = @_;
3921: my $currentstring = '';
1.325 albertel 3922: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3923: $currentstring = $token->[2];
3924: }
3925: return $currentstring;
3926: }
3927:
1.179 sakharuk 3928: #-- <nolayer> tag (end tag required)
1.122 albertel 3929: sub start_nolayer {
3930: my ($target,$token) = @_;
3931: my $currentstring = '';
1.325 albertel 3932: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3933: $currentstring = $token->[4];
3934: }
3935: return $currentstring;
3936: }
3937:
3938: sub end_nolayer {
3939: my ($target,$token) = @_;
3940: my $currentstring = '';
1.325 albertel 3941: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3942: $currentstring = $token->[2];
3943: }
3944: return $currentstring;
3945: }
3946:
1.179 sakharuk 3947: #-- <noscript> tag (end tag required)
1.122 albertel 3948: sub start_noscript {
3949: my ($target,$token) = @_;
3950: my $currentstring = '';
1.325 albertel 3951: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3952: $currentstring = $token->[4];
3953: }
3954: return $currentstring;
3955: }
3956:
3957: sub end_noscript {
3958: my ($target,$token) = @_;
3959: my $currentstring = '';
1.325 albertel 3960: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3961: $currentstring = $token->[2];
3962: }
3963: return $currentstring;
3964: }
3965:
1.179 sakharuk 3966: #-- <object> tag (end tag required)
1.122 albertel 3967: sub start_object {
3968: my ($target,$token) = @_;
3969: my $currentstring = '';
1.325 albertel 3970: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3971: $currentstring = $token->[4];
3972: }
3973: return $currentstring;
3974: }
3975:
3976: sub end_object {
3977: my ($target,$token) = @_;
3978: my $currentstring = '';
1.325 albertel 3979: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3980: $currentstring = $token->[2];
3981: }
3982: return $currentstring;
3983: }
3984:
1.179 sakharuk 3985: #-- <optgroup> tag (end tag required)
1.122 albertel 3986: sub start_optgroup {
3987: my ($target,$token) = @_;
3988: my $currentstring = '';
1.325 albertel 3989: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3990: $currentstring = $token->[4];
3991: }
3992: return $currentstring;
3993: }
3994:
3995: sub end_optgroup {
3996: my ($target,$token) = @_;
3997: my $currentstring = '';
1.325 albertel 3998: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3999: $currentstring = $token->[2];
4000: }
4001: return $currentstring;
4002: }
4003:
1.179 sakharuk 4004: #-- <samp> tag (end tag required)
1.122 albertel 4005: sub start_samp {
4006: my ($target,$token) = @_;
4007: my $currentstring = '';
1.325 albertel 4008: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4009: $currentstring = $token->[4];
1.179 sakharuk 4010: } elsif ($target eq 'tex') {
4011: $currentstring='\texttt{';
4012: }
1.122 albertel 4013: return $currentstring;
4014: }
4015:
4016: sub end_samp {
4017: my ($target,$token) = @_;
4018: my $currentstring = '';
1.325 albertel 4019: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4020: $currentstring = $token->[2];
1.179 sakharuk 4021: } elsif ($target eq 'tex') {
4022: $currentstring='}';
4023: }
1.122 albertel 4024: return $currentstring;
4025: }
4026:
4027: #-- <server> tag
4028: sub start_server {
4029: my ($target,$token) = @_;
4030: my $currentstring = '';
1.325 albertel 4031: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4032: $currentstring = $token->[4];
4033: }
4034: return $currentstring;
4035: }
4036:
4037: sub end_server {
4038: my ($target,$token) = @_;
4039: my $currentstring = '';
1.325 albertel 4040: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4041: $currentstring = $token->[2];
4042: }
4043: return $currentstring;
4044: }
4045:
1.179 sakharuk 4046: #-- <spacer> tag (end tag forbidden)
1.122 albertel 4047: sub start_spacer {
4048: my ($target,$token) = @_;
1.279 foxr 4049: my $currentstring = &end_p(); # Close off any open <p> tag.
1.325 albertel 4050: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 4051: $currentstring .= $token->[4];
1.122 albertel 4052: }
4053: return $currentstring;
4054: }
4055:
4056: sub end_spacer {
4057: my ($target,$token) = @_;
4058: my $currentstring = '';
1.325 albertel 4059: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4060: $currentstring = $token->[2];
4061: }
4062: return $currentstring;
4063: }
4064:
1.179 sakharuk 4065: #-- <span> tag (end tag required)
1.122 albertel 4066: sub start_span {
4067: my ($target,$token) = @_;
4068: my $currentstring = '';
1.325 albertel 4069: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4070: $currentstring = $token->[4];
4071: }
4072: return $currentstring;
4073: }
4074:
4075: sub end_span {
4076: my ($target,$token) = @_;
4077: my $currentstring = '';
1.325 albertel 4078: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4079: $currentstring = $token->[2];
4080: }
4081: return $currentstring;
4082: }
4083:
1.179 sakharuk 4084: #-- <tbody> tag (end tag optional)
1.122 albertel 4085: sub start_tbody {
4086: my ($target,$token) = @_;
4087: my $currentstring = '';
1.325 albertel 4088: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4089: $currentstring = $token->[4];
4090: }
4091: return $currentstring;
4092: }
4093:
4094: sub end_tbody {
4095: my ($target,$token) = @_;
4096: my $currentstring = '';
1.325 albertel 4097: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4098: $currentstring = $token->[2];
4099: }
4100: return $currentstring;
4101: }
4102:
1.166 sakharuk 4103: #-- <tfoot> tag (end tag optional)
1.122 albertel 4104: sub start_tfoot {
4105: my ($target,$token) = @_;
4106: my $currentstring = '';
1.325 albertel 4107: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4108: $currentstring = $token->[4];
4109: }
4110: return $currentstring;
4111: }
4112:
4113: sub end_tfoot {
4114: my ($target,$token) = @_;
4115: my $currentstring = '';
1.325 albertel 4116: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4117: $currentstring = $token->[2];
4118: }
4119: return $currentstring;
4120: }
4121:
1.166 sakharuk 4122: #-- <thead> tag (end tag optional)
1.122 albertel 4123: sub start_thead {
4124: my ($target,$token) = @_;
4125: my $currentstring = '';
1.325 albertel 4126: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4127: $currentstring = $token->[4];
4128: }
4129: return $currentstring;
4130: }
1.10 www 4131:
1.122 albertel 4132: sub end_thead {
4133: my ($target,$token) = @_;
4134: my $currentstring = '';
1.325 albertel 4135: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4136: $currentstring = $token->[2];
4137: }
4138: return $currentstring;
4139: }
1.119 www 4140:
1.122 albertel 4141: #-- <var> tag
4142: sub start_var {
1.44 sakharuk 4143: my ($target,$token) = @_;
4144: my $currentstring = '';
1.325 albertel 4145: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4146: $currentstring = $token->[4];
1.163 sakharuk 4147: } elsif ($target eq 'tex') {
4148: $currentstring = '\textit{';
4149: }
1.44 sakharuk 4150: return $currentstring;
4151: }
1.10 www 4152:
1.122 albertel 4153: sub end_var {
4154: my ($target,$token) = @_;
1.44 sakharuk 4155: my $currentstring = '';
1.325 albertel 4156: if ($target eq 'web' || $target eq 'webgrade') {
1.163 sakharuk 4157: $currentstring = $token->[2];
4158: } elsif ($target eq 'tex') {
4159: $currentstring = '}';
1.44 sakharuk 4160: }
4161: return $currentstring;
4162: }
1.119 www 4163:
1.163 sakharuk 4164: #-- <wbr> tag (end tag forbidden)
1.122 albertel 4165: sub start_wbr {
4166: my ($target,$token) = @_;
4167: my $currentstring = '';
1.325 albertel 4168: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4169: $currentstring = $token->[4];
4170: }
4171: return $currentstring;
1.98 albertel 4172: }
4173:
1.122 albertel 4174: sub end_wbr {
4175: my ($target,$token) = @_;
4176: my $currentstring = '';
1.325 albertel 4177: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4178: $currentstring = $token->[2];
4179: }
4180: return $currentstring;
1.98 albertel 4181: }
1.134 sakharuk 4182:
4183: #-- <hideweboutput> tag
4184: sub start_hideweboutput {
4185: my ($target,$token) = @_;
1.325 albertel 4186: if ($target eq 'web' || $target eq 'webgrade') {
1.134 sakharuk 4187: &Apache::lonxml::startredirection();
4188: }
4189: return '';
4190: }
4191:
4192: sub end_hideweboutput {
4193: my ($target,$token) = @_;
4194: my $currentstring = '';
1.325 albertel 4195: if ($target eq 'web' || $target eq 'webgrade') {
1.134 sakharuk 4196: $currentstring = &Apache::lonxml::endredirection();
4197: }
4198: return '';
4199: }
4200:
1.94 sakharuk 4201:
4202: sub image_replication {
4203: my $src = shift;
1.187 albertel 4204: if (not -e $src) { &Apache::lonnet::repcopy($src); }
4205: #replicates eps or ps
4206: my $epssrc = my $pssrc = $src;
4207: $epssrc =~ s/\.(gif|jpg|jpeg|png)$/.eps/i;
4208: $pssrc =~ s/\.(gif|jpg|jpeg|png)$/.ps/i;
4209: if (not -e $epssrc && not -e $pssrc) {
4210: my $result=&Apache::lonnet::repcopy($epssrc);
1.264 raeburn 4211: if ($result ne 'ok') { &Apache::lonnet::repcopy($pssrc); }
1.94 sakharuk 4212: }
4213: return '';
1.195 sakharuk 4214: }
1.275 foxr 4215: #
4216: # Get correct sizing parameter for an image given
4217: # it's initial ht. and wid. This allows sizing of
4218: # images that are generated on-the-fly (e.g. gnuplot)
4219: # as well as serving as a utility for image_size.
4220: #
4221: # Parameter:
4222: # height_param
4223: # width_param - Initial picture dimensions.
4224: # scaling - A scale factor.
4225: # parstack, - the current stack of tag attributes
4226: # from the xml parser
4227: # safeeval, - pointer to the safespace
4228: # depth, - from what level in the stack to look for attributes
4229: # (assumes -1 if unspecified)
4230: # cis - look for attrubutes case insensitively
4231: # (assumes false)
4232: #
4233: # Returns:
4234: # height, width - new dimensions.
4235: #
4236: sub resize_image {
4237: my ($height_param, $width_param, $scaling,
4238: $parstack, $safeeval, $depth, $cis) = @_;
4239:
4240: # First apply the scaling...
1.271 foxr 4241:
1.275 foxr 4242: $height_param = $height_param * $scaling;
4243: $width_param = $width_param * $scaling;
1.261 foxr 4244:
1.197 sakharuk 4245: #do we have any specified LaTeX size of the picture?
1.261 foxr 4246: my $toget='TeXwidth';
4247: if ($cis) {
4248: $toget=lc($toget);
4249: }
1.256 albertel 4250: my $TeXwidth = &Apache::lonxml::get_param($toget,$parstack,
4251: $safeeval,$depth,$cis);
4252: $toget='TeXheight'; if ($cis) { $toget=lc($toget); }
4253: my $TeXheight = &Apache::lonxml::get_param($toget,$parstack,
4254: $safeeval,$depth,$cis);
1.197 sakharuk 4255: #do we have any specified web size of the picture?
4256: my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval,
1.256 albertel 4257: $depth,1);
4258: if ($TeXwidth) {
1.252 matthew 4259: my $old_width_param=$width_param;
1.197 sakharuk 4260: if ($TeXwidth=~/(\d+)\s*\%/) {
1.267 albertel 4261: $width_param = $1*$env{'form.textwidth'}/100;
1.197 sakharuk 4262: } else {
4263: $width_param = $TeXwidth;
4264: }
1.266 albertel 4265: if ($TeXheight) {
4266: $height_param = $TeXheight;
4267: } elsif ($old_width_param) {
4268: $height_param=$TeXwidth/$old_width_param*$height_param;
4269: }
1.256 albertel 4270: } elsif ($TeXheight) {
1.248 foxr 4271: $height_param = $TeXheight;
1.266 albertel 4272: if ($height_param) {
4273: $width_param = $TeXheight/$height_param*$width_param;
4274: }
1.256 albertel 4275: } elsif ($width) {
1.252 matthew 4276: my $old_width_param=$width_param;
1.256 albertel 4277: $width_param = $width*$scaling;
1.266 albertel 4278: if ($old_width_param) {
4279: $height_param=$width_param/$old_width_param*$height_param;
4280: }
1.252 matthew 4281: }
1.267 albertel 4282: if ($width_param > $env{'form.textwidth'}) {
1.252 matthew 4283: my $old_width_param=$width_param;
1.267 albertel 4284: $width_param =0.95*$env{'form.textwidth'};
1.266 albertel 4285: if ($old_width_param) {
4286: $height_param=$width_param/$old_width_param*$height_param;
4287: }
1.197 sakharuk 4288: }
1.275 foxr 4289:
4290: return ($height_param, $width_param);
4291: }
4292:
4293: sub image_size {
4294: my ($src,$scaling,$parstack,$safeeval,$depth,$cis)=@_;
4295:
4296: #size of image from gif/jpg/jpeg/png
4297: my $ressrc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
4298: if (-e $ressrc) {
4299: $src = $ressrc;
4300: }
4301: my $image = Image::Magick->new;
4302: my $current_figure = $image->Read($src);
4303: my $width_param = $image->Get('width');
4304: my $height_param = $image->Get('height');
4305: &Apache::lonxml::debug("Image magick says: $src : Height = $height_param width = $width_param");
4306: undef($image);
4307:
4308: ($height_param, $width_param) = &resize_image($height_param, $width_param,
4309: $scaling, $parstack, $safeeval,
4310: $depth, $cis);
4311:
1.248 foxr 4312: return ($height_param, $width_param);
4313: }
4314:
4315: sub image_width {
4316: my ($height, $width) = &image_size(@_);
4317: return $width;
4318: }
4319: # Not yet 100% sure this is correct in all circumstances..
4320: # due to my uncertainty about mods to image_size.
4321: #
4322: sub image_height {
4323: my ($height, $width) = &image_size(@_);
4324: return $height;
1.197 sakharuk 4325: }
4326:
1.256 albertel 4327: sub get_eps_image {
4328: my ($src)=@_;
1.261 foxr 4329: my $orig_src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1], $src);
1.285 foxr 4330:
4331: # In order to prevent the substitution of the alt text, we need to
4332: # be sure the orig_src file is on system now so:
4333:
4334: if (! -e $orig_src) {
4335: &Apache::lonnet::repcopy($orig_src); # Failure is not completely fatal.
4336: }
1.275 foxr 4337: &Apache::lonxml::debug("get_eps_image: Original image: $orig_src");
1.344 albertel 4338: my ($spath, $sname, $sext) = &fileparse($src, qr/\.(gif|png|jpg|jpeg)/i);
1.256 albertel 4339: $src=~s/\.(gif|png|jpg|jpeg)$/\.eps/i;
4340: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.275 foxr 4341: &Apache::lonxml::debug("Filelocation gives: $src");
1.256 albertel 4342: if (! -e $src) {
1.261 foxr 4343: &Apache::lonxml::debug("$src does not exist");
1.264 raeburn 4344: if (&Apache::lonnet::repcopy($src) ne 'ok' ) {
1.261 foxr 4345: &Apache::lonxml::debug("Repcopy of $src failed (1)");
1.256 albertel 4346: #if replication failed try to find ps file
4347: $src=~s/\.eps$/\.ps/;
1.261 foxr 4348: &Apache::lonxml::debug("Now looking for $src");
1.270 foxr 4349: #if no ps file try to replicate it.
4350: my $didrepcopy = &Apache::lonnet::repcopy($src);
4351: &Apache::lonxml::debug("repcopy of $src ... $didrepcopy");
4352: if ( (not -e $src) ||
4353: ($didrepcopy ne 'ok')) {
1.261 foxr 4354: &Apache::lonxml::debug("Failed to find or replicate $src");
4355:
1.256 albertel 4356: #if replication failed try to produce eps file dynamically
4357: $src=~s/\.ps$/\.eps/;
4358: my $temp_file;
1.267 albertel 4359: open(FILE,">>/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat");
1.256 albertel 4360: my $newsrc=$orig_src;
4361: $newsrc =~ s|(.*)/res/|/home/httpd/html/res/|;
1.275 foxr 4362: &Apache::lonxml::debug("queueing $newsrc for dynamic eps production.");
1.344 albertel 4363: print FILE ("$newsrc\n");
4364: close(FILE);
1.256 albertel 4365: $src=~s|/home/httpd/html/res|/home/httpd/prtspool|;
4366: $src=~s|/home/([^/]*)/public_html/|/home/httpd/prtspool/$1/|;
1.283 albertel 4367: if ($sext ne "") { # Put the ext. back in to uniquify.
4368: $src =~ s/\.eps$/$sext.eps/;
4369: }
1.341 foxr 4370:
1.256 albertel 4371: }
1.343 foxr 4372:
1.256 albertel 4373: }
1.341 foxr 4374: } else {
4375: # If the postscript file has spaces in its name,
4376: # LaTeX will gratuitiously vomit. Therefore
4377: # queue such files for copy with " " replaced by "_".
4378: # printout.pm will know them by their .ps or .eps extensions.
4379: my $newsrc = $orig_src;
4380: $newsrc =~ s|(.*)/res/|/home/httpd/html/res/|;
4381: open(FILE,">>/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat");
1.343 foxr 4382: print FILE "$src\n";
1.341 foxr 4383: close FILE;
4384: $src=~s|/home/httpd/html/res|/home/httpd/prtspool|;
4385: $src=~s|/home/([^/]*)/public_html/|/home/httpd/prtspool/$1/|;
1.256 albertel 4386: }
4387: my ($path,$file)=($src=~m|(.*)/([^/]*)$|);
1.344 albertel 4388: $path =~ s/ /\_/g;
1.343 foxr 4389: $file =~ s/ /\_/g;
1.261 foxr 4390: &Apache::lonxml::debug("get_eps_image returning: $path / $file<BR />");
1.256 albertel 4391: return ($path.'/',$file);
4392: }
4393:
1.195 sakharuk 4394: sub eps_generation {
4395: my ($src,$file,$width_param) = @_;
1.267 albertel 4396: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat";
1.195 sakharuk 4397: my $temp_file = Apache::File->new('>>'.$filename);
4398: print $temp_file "$src\n";
4399: my $newsrc = $src;
4400: $newsrc =~ s/(\.gif|\.jpg|\.jpeg)$/\.eps/i;
1.345 albertel 4401: $newsrc=~s{/home/httpd/html/res}{};
4402: $newsrc=~s{/home/($LONCAPA::username_re)/public_html/}{/$1/};
4403: $newsrc=~s{/\./}{/};
4404: $newsrc=~s{/([^/]+)\.(ps|eps)}{/};
4405: if ($newsrc=~m{/home/httpd/lonUsers/}) {
4406: $newsrc=~s{/home/httpd/lonUsers}{};
4407: $newsrc=~s{/($LONCAPA::domain_re)/./././}{/$1/};
1.213 sakharuk 4408: }
1.345 albertel 4409: if ($newsrc=~m{/userfiles/}) {
1.239 sakharuk 4410: return ' \graphicspath{{'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4411: } else {
4412: return ' \graphicspath{{/home/httpd/prtspool'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4413: }
1.197 sakharuk 4414: }
4415:
4416: sub file_path {
4417: my $src=shift;
4418: my ($file,$path);
4419: if ($src =~ m!(.*)/([^/]*)$!) {
4420: $file = $2;
4421: $path = $1.'/';
4422: }
4423: return $file,$path;
1.126 sakharuk 4424: }
1.294 foxr 4425: # Converts a measurement in to mm from any of
4426: # the other valid LaTeX units of measure.
4427: # If the units of measure are missing from the
4428: # parameter, it is assumed to be in and returned
4429: # with mm units of measure
1.126 sakharuk 4430: sub recalc {
4431: my $argument = shift;
4432: if (not $argument=~/(mm|cm|in|pc|pt)/) {return $argument.' mm';}
1.132 sakharuk 4433: $argument=~/\s*(\d+\.?\d*)\s*(mm|cm|in|pc|pt)/;
1.126 sakharuk 4434: my $value=$1;
4435: my $units=$2;
4436: if ($units eq 'cm') {
4437: $value*=10;
4438: } elsif ($units eq 'in') {
4439: $value*=25.4;
4440: } elsif ($units eq 'pc') {
4441: $value*=(25.4*12/72.27);
4442: } elsif ($units eq 'pt') {
4443: $value*=(25.4/72.27);
4444: }
4445: return $value.' mm';
1.94 sakharuk 4446: }
1.184 sakharuk 4447:
4448: sub LATEX_length {
4449: my $garbage=shift;
1.206 sakharuk 4450: $garbage=~s/^\s+$//;
4451: $garbage=~s/^\s+(\S.*)/$1/;#space before
4452: $garbage=~s/(.*\S)\s+$/$1/;#space after
4453: $garbage=~s/(\s)+/$1/;#only one space
4454: $garbage=~s/(\\begin{([^\}]+)}|\\end{([^\}]+)})//g;#remove LaTeX \begin{...} and \end{...}
4455: $garbage=~s/(\$\_\{|\$\_|\$\^{|\$\^|\}\$)//g;#remove $_{,$_,$^{,$^,}$
4456: $garbage=~s/([^\\])\$/$1/g;#$
4457: $garbage=~s/(\\ensuremath\{\_\{|\\ensuremath\{\_|\\ensuremath\{\^{|\\ensuremath\{\^|\})//g;#remove \ensuremath{...}
4458: $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 4459: $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;
4460: $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;
4461: $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 4462: $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;
4463: $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;
4464: $garbage=~s/(\\hat{([^}]+)}|\\check{([^}]+)}|\\dot{([^}]+)}|\\breve{([^}]+)}|\\acute{([^}]+)}|\\ddot{([^}]+)}|\\grave{([^}]+)}|\\tilde{([^}]+)}|\\mathring{([^}]+)}|\\bar{([^}]+)}|\\vec{([^}]+)})/$1/g;
4465: #remove some other LaTeX command
4466: $garbage=~s|\\(\w+)\\|\\|g;
4467: $garbage=~s|\\(\w+)(\s*)|$2|g;
4468: $garbage=~s|\+|11|g;
1.184 sakharuk 4469: my $value=length($garbage);
4470: return $value;
4471: }
4472:
1.353 foxr 4473: # Wrap image 'stuff' inside of the LaTeX required to implement
4474: # alignment:
4475: # align_tex_image(align, latex_rendering, image)
4476: # Where:
4477: # align - The HTML alignment specification.
4478: # latex_rendering - rendering hint for latex.
4479: # image - The LaTeX needed to insert the image itsef.
4480: # width,height - dimensions of the image.
1.354 foxr 4481: # Returns:
4482: # The 1/2 wrapped image and the stuff required to close the
4483: # wrappage. This allows e.g. randomlabel to insert more stuff
4484: # into the closure.
1.353 foxr 4485: #
4486: sub align_latex_image {
4487: my ($align, $latex_rendering, $image, $width, $height) = @_;
1.354 foxr 4488: my $currentstring; # The 1/2 wrapped image.
4489: my $closure; # The closure of the wrappage.
1.353 foxr 4490: # If there's an alignment specification we need to honor it here.
4491: # For the horizontal alignments, we will also honor the
4492: # value of the latex specfication. The default is parbox,
4493: # and that's used for illegal values too.
4494: #
4495: # Even though we set a default alignment value, the user
4496: # could have given us an illegal value. In that case we
4497: # just use the default alignment of bottom..
1.354 foxr 4498: $currentstring = "\n% figurewrapping \n";
1.353 foxr 4499: if ($align eq "top") {
1.354 foxr 4500: $currentstring .= '\raisebox{-'.$height.'mm}{'.$image;
4501: $closure = '}';
1.353 foxr 4502: } elsif (($align eq "center") || ($align eq "middle")) { # Being kind
4503: my $offset = $height/2;
1.354 foxr 4504: $currentstring .= '\raisebox{-'.$offset.'mm}{'.$image;
4505: $closure = '}';
1.353 foxr 4506: } elsif ($align eq "left") {
4507: if ($latex_rendering eq "parpic") {
1.354 foxr 4508: $currentstring .= '\parpic[l]{'.$image;
4509: $closure = '}';
1.353 foxr 4510: } elsif ($latex_rendering eq "parbox") {
1.354 foxr 4511: $currentstring .= '\begin{minipage}[l]{'.$width.'mm}'
4512: .$image;
4513: $closure = '\end{minipage}';
1.353 foxr 4514: } elsif ($latex_rendering eq "wrapfigure"
4515: || $latex_rendering ne 'none') { # wrapfig render
1.354 foxr 4516: $currentstring .=
1.353 foxr 4517: '\begin{wrapfigure}{l}{'.$width.'mm}'
1.354 foxr 4518: .'\scalebox{1.0}{'.$image;
4519: $closure = '}\end{wrapfigure}';
1.353 foxr 4520: }
4521: } elsif ($align eq "right") {
4522: if ($latex_rendering eq "parpic") {
1.354 foxr 4523: $currentstring .= '\parpic[r]{'.$image;
4524: $closure = '}';
1.353 foxr 4525: } elsif ($latex_rendering eq "parbox") {
1.354 foxr 4526: $currentstring .= '\begin{minipage}[r]{'.$width.'mm}'
4527: .$image;
4528: $closure = '\end{minipage}';
1.353 foxr 4529: } elsif ($latex_rendering eq "wrapfigure"
4530: || $latex_rendering ne 'none') { # wrapfig render
1.354 foxr 4531: $currentstring .=
1.353 foxr 4532: '\begin{wrapfigure}{r}{'.$width.'mm}'
1.354 foxr 4533: .'\scalebox{1.0}{'.$image;
4534: $closure = '}\end{wrapfigure}';
1.353 foxr 4535: }
4536: } else { # Bottom is also default.
4537: # $currentstring = '\raisebox{'.$height.'mm}{'.$image.'}';
1.354 foxr 4538: $currentstring .= "{$image";
4539: $closure = '}';
1.353 foxr 4540: }
1.354 foxr 4541: $currentstring .= "\n% end wrappage\n";
4542: $closure = "\n% Begin closure\n".$closure."\n% End closure\n";
4543: return ($currentstring, $closure);
1.353 foxr 4544: }
1.184 sakharuk 4545:
1.287 foxr 4546: # is_inside_of $tagstack $tag
4547: # This sub returns true if the current state of Xml processing
4548: # is inside of the tag.
4549: # Parameters:
4550: # tagstack - The tagstack from the parser.
4551: # tag - The tag (without the <>'s.).
4552: # Sample usage:
4553: # if (is_inside_of($tagstack "table")) {
4554: # # I'm in a table....
4555: # }
4556: sub is_inside_of {
4557: my ($tagstack, $tag) = @_;
4558: my @stack = @$tagstack;
4559: for (my $i = ($#stack - 1); $i >= 0; $i--) {
4560: if ($stack[$i] eq $tag) {
4561: return 1;
4562: }
4563: }
4564: return 0;
4565: }
1.184 sakharuk 4566:
1.94 sakharuk 4567:
1.1 sakharuk 4568: 1;
4569: __END__
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