Annotation of loncom/xml/londefdef.pm, revision 1.396.2.2
1.1 sakharuk 1: # The LearningOnline Network with CAPA
2: # Tags Default Definition Module
3: #
1.396.2.2! raeburn 4: # $Id: londefdef.pm,v 1.396.2.1 2008/12/11 23:57:04 raeburn 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();
1.389 www 49: use Apache::lonlocal;
1.187 albertel 50: use Apache::Constants qw(:common);
1.282 foxr 51: use File::Basename;
1.345 albertel 52: use LONCAPA();
1.302 foxr 53: # use Data::Dumper;
1.160 sakharuk 54:
1.38 harris41 55: BEGIN {
1.15 sakharuk 56:
1.135 sakharuk 57: &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 58:
1.188 albertel 59: }
60:
1.294 foxr 61: #
62: # Dumps all elements of the table structure.
63: # Need this 'cause evidently when given an array, Data::Dumper only seems
64: # to dump element 0.
65: #
1.302 foxr 66: #sub debug_dump_table {
67: # my $lastrow = $#Apache::londefdef::table;
68: # &Apache::lonnet::logthis("Dumping table: Last row index: $lastrow");
69: # my $row;
70: # for ($row =0; $row <= $lastrow; $row++ ) {
71: # my $text = Dumper($Apache::londefdef::table[$row]);
72: # &Apache::lonnet::logthis("table [ $row ]".$text);
73: # }
74: #}
1.188 albertel 75: sub initialize_londefdef {
76: $Apache::londefdef::TD_redirection=0;
77: @Apache::londefdef::table = ();
78: $Apache::londefdef::select=0;
1.243 albertel 79: undef(@Apache::londefdef::description);
80: @Apache::londefdef::DD=(0);
81: @Apache::londefdef::DT=(0);
1.244 albertel 82: @Apache::londefdef::seenDT=(0);
1.238 albertel 83: $Apache::londefdef::list_index=0;
1.327 albertel 84: undef($Apache::londefdef::head);
85: undef($Apache::londefdef::title);
1.3 sakharuk 86: }
1.1 sakharuk 87:
1.35 sakharuk 88: #======================= TAG SUBROUTINES =====================
1.8 sakharuk 89: #-- <output>
1.21 albertel 90: sub start_output {
1.122 albertel 91: my ($target) = @_;
92: if ($target eq 'meta') { $Apache::lonxml::metamode--; }
93: return '';
1.21 albertel 94: }
95: sub end_output {
1.122 albertel 96: my ($target) = @_;
97: if ($target eq 'meta') { $Apache::lonxml::metamode++; }
98: return '';
1.21 albertel 99: }
1.4 sakharuk 100: #-- <m> tag
1.33 albertel 101: sub start_m {
1.190 albertel 102: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 103: my $currentstring = '';
1.193 albertel 104: my $inside = &Apache::lonxml::get_all_text_unbalanced("/m",$parser);
1.191 albertel 105: if ($target eq 'web' || $target eq 'analyze') {
1.122 albertel 106: &Apache::lonxml::debug("M is starting with:$inside:");
107: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
108: if ($eval eq 'on') {
109: $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
1.392 bisitz 110: #&Apache::lonxml::debug("M is evaluated to:$inside:");
1.122 albertel 111: }
1.317 albertel 112: my $tex = $inside;
1.276 albertel 113: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
114: $currentstring = &Apache::lontexconvert::converted(\$inside,$display);
1.122 albertel 115: if ($Apache::lontexconvert::errorstring) {
1.392 bisitz 116: my $errormsg='<pre>'.&HTML::Entities::encode($Apache::lontexconvert::errorstring,'<>&"').'</pre> occurred while attempting to convert this TeX: <pre>';
1.317 albertel 117: $tex = &HTML::Entities::encode($tex,'<>&"');
118: my ($linenumber) =
119: ($Apache::lontexconvert::errorstring =~ /Line (\d+)/);
120: if (defined($linenumber)) {
121: my @tex=split("\n",$tex);
122: $tex[$linenumber]='<b><font color="red">'.
123: $tex[$linenumber].'</font></b>';
124: $tex=join("\n",@tex);
125: }
126: &Apache::lonxml::warning($errormsg.$tex.'</pre>');
1.122 albertel 127: $Apache::lontexconvert::errorstring='';
128: }
129: #&Apache::lonxml::debug("M is ends with:$currentstring:");
1.178 albertel 130: $Apache::lonxml::post_evaluate=0;
1.122 albertel 131: } elsif ($target eq 'tex') {
1.360 foxr 132:
1.190 albertel 133: $currentstring = $inside;
1.178 albertel 134: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
135: if ($eval eq 'on') {
136: $currentstring=&Apache::run::evaluate($currentstring,$safeeval,$$parstack[-1]);
137: }
1.122 albertel 138: if ($currentstring=~/^(\s*\\\\\s*)*$/) {$currentstring = ' \vskip 0 mm ';}
1.257 albertel 139: # detect simple math mode entry exits, and convert them
1.360 foxr 140: # to use \ensuremath ... unless there's a \verb inside.
141: if (! ($currentstring=~/\\verb/)) {
1.395 raeburn 142: if ($currentstring=~/^\s*\$[^\$].*\$\s*$/) {
1.360 foxr 143: $currentstring=~s/^(\s*)\$/$1/;
144: $currentstring=~s/\$(\s*)$/$1/;
145: $currentstring='\ensuremath{'.$currentstring.'}';
146: }
1.257 albertel 147: }
1.178 albertel 148: $Apache::lonxml::post_evaluate=0;
1.122 albertel 149: }
150: return $currentstring;
1.33 albertel 151: }
1.122 albertel 152:
1.33 albertel 153: sub end_m {
1.122 albertel 154: my ($target,$token) = @_;
155: my $currentstring = '';
1.204 albertel 156: if ($target eq 'tex') {
1.122 albertel 157: $currentstring = "";
158: }
159: return $currentstring;
1.33 albertel 160: }
1.110 albertel 161:
162: sub start_tthoption {
1.299 albertel 163: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 164: my $result;
1.325 albertel 165: if ($target eq 'web' || $target eq 'webgrade') {
1.299 albertel 166: my $inside = &Apache::lonxml::get_all_text("/tthoption",$parser,
167: $style);
1.122 albertel 168: $inside=~s/^\s*//;
1.267 albertel 169: if ($env{'browser.mathml'}) {
1.122 albertel 170: &tth::ttmoptions($inside);
171: } else {
172: &tth::tthoptions($inside);
173: }
174: }
175: return $result;
1.110 albertel 176: }
177:
178: sub end_tthoption {
1.122 albertel 179: my ($target,$token) = @_;
180: my $result;
181: return $result;
1.110 albertel 182: }
183:
1.181 sakharuk 184: #-- <html> tag (end tag optional)
1.100 albertel 185: sub start_html {
186: my ($target,$token) = @_;
187: my $currentstring = '';
1.269 albertel 188: if ($target eq 'web' || $target eq 'edit' || $target eq 'webgrade' ) {
1.327 albertel 189: # start_body() takes care of emitting the <html>
1.100 albertel 190: } elsif ($target eq 'tex') {
1.331 albertel 191: $currentstring .=
192: '\documentclass[letterpaper,twoside]{article}\raggedbottom';
1.267 albertel 193: if (($env{'form.latex_type'}=~'batchmode') ||
194: (!$env{'request.role.adv'})) {$currentstring .='\batchmode';}
1.217 sakharuk 195: $currentstring .= '\newcommand{\keephidden}[1]{}'.
196: '\renewcommand{\deg}{$^{\circ}$}'.
1.306 foxr 197: '\usepackage{multirow}'.
1.217 sakharuk 198: '\usepackage{longtable}'.
199: '\usepackage{textcomp}'.
200: '\usepackage{makeidx}'.
201: '\usepackage[dvips]{graphicx}'.
1.286 foxr 202: '\usepackage{wrapfig}'.
1.248 foxr 203: '\usepackage{picins}'.
1.386 foxr 204: '\usepackage[T1]{fontenc}'."\n".
1.393 raeburn 205: '\usepackage{lmodern}'."\n".
1.388 foxr 206: '\usepackage[postscript]{ucs}'."\n".
1.387 foxr 207: '\usepackage[utf8x]{inputenc}'."\n".
208: '\usepackage{pifont}' ."\n".
1.385 foxr 209: '\usepackage{latexsym}'."\n".
1.217 sakharuk 210: '\usepackage{epsfig}'.
211: '\usepackage{calc}'.
212: '\usepackage{amsmath}'.
213: '\usepackage{amssymb}'.
214: '\usepackage{amsfonts}'.
1.396.2.1 raeburn 215: '\usepackage{amsthm}';
1.391 onken 216:
217: $currentstring .= '\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}}'.
1.217 sakharuk 218: '\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 219: }
220: return $currentstring;
221: }
1.122 albertel 222:
223: sub end_html {
1.232 sakharuk 224: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 225: my $currentstring = '';
1.324 albertel 226: if ($target eq 'web' || $target eq 'webgrade') {
1.327 albertel 227: # end_body takes care of the </html>
1.122 albertel 228: }
229: return $currentstring;
230: }
231:
1.181 sakharuk 232: #-- <head> tag (end tag optional)
1.122 albertel 233: sub start_head {
234: my ($target,$token) = @_;
235: my $currentstring = '';
1.324 albertel 236: if ($target eq 'web' || $target eq 'webgrade') {
1.327 albertel 237: &Apache::lonxml::startredirection();
1.122 albertel 238: }
239: return $currentstring;
240: }
241:
242: sub end_head {
243: my ($target,$token) = @_;
244: my $currentstring = '';
1.324 albertel 245: if (($target eq 'web' && $env{'request.state'} eq 'published') ||
246: ($target eq 'webgrade' && $env{'request.state'} eq 'published')) {
1.327 albertel 247: # in case there is a </head> but no <head>
248: if ($Apache::lonxml::redirection) {
249: $Apache::londefdef::head = &Apache::lonxml::endredirection();
250: }
1.122 albertel 251: }
252: return $currentstring;
253: }
254:
1.181 sakharuk 255: #-- <map> tag (end tag required)
1.122 albertel 256: sub start_map {
257: my ($target,$token) = @_;
258: my $currentstring = '';
1.325 albertel 259: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 260: $currentstring = $token->[4];
261: }
262: return $currentstring;
263: }
264:
265: sub end_map {
266: my ($target,$token) = @_;
267: my $currentstring = '';
1.325 albertel 268: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 269: $currentstring = $token->[2];
270: }
271: return $currentstring;
272: }
273:
1.181 sakharuk 274: #-- <select> tag (end tag required)
1.122 albertel 275: sub start_select {
276: my ($target,$token) = @_;
277: my $currentstring = '';
1.325 albertel 278: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 279: $currentstring = $token->[4];
1.181 sakharuk 280: } elsif ($target eq 'tex') {
281: $Apache::londefdef::select=0;
282: }
1.122 albertel 283: return $currentstring;
284: }
285:
286: sub end_select {
287: my ($target,$token) = @_;
288: my $currentstring = '';
1.325 albertel 289: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 290: $currentstring = $token->[2];
291: }
292: return $currentstring;
293: }
294:
1.181 sakharuk 295: #-- <option> tag (end tag optional)
1.122 albertel 296: sub start_option {
1.181 sakharuk 297: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 298: my $currentstring = '';
1.325 albertel 299: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 300: $currentstring = $token->[4];
1.181 sakharuk 301: } elsif ($target eq 'tex') {
302: $Apache::londefdef::select++;
303: if ($Apache::londefdef::select == 1) {
304: $currentstring='\noindent\fbox{'.&Apache::lonxml::get_param('value',$parstack,$safeeval).'}\keephidden{';
305: } else {
306: $currentstring='\keephidden{';
307: }
308: }
1.122 albertel 309: return $currentstring;
310: }
311:
312: sub end_option {
313: my ($target,$token) = @_;
314: my $currentstring = '';
1.325 albertel 315: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 316: $currentstring = $token->[2];
1.181 sakharuk 317: } elsif ($target eq 'tex') {
318: $currentstring='}';
319: }
1.122 albertel 320: return $currentstring;
321: }
322:
1.181 sakharuk 323: #-- <input> tag (end tag forbidden)
1.122 albertel 324: sub start_input {
325: my ($target,$token) = @_;
326: my $currentstring = '';
1.325 albertel 327: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 328: $currentstring = $token->[4];
329: }
330: return $currentstring;
331: }
332:
333: sub end_input {
334: my ($target,$token) = @_;
335: my $currentstring = '';
1.325 albertel 336: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 337: $currentstring = $token->[2];
338: }
339: return $currentstring;
340: }
341:
1.181 sakharuk 342: #-- <textarea> tag (end tag required)
1.122 albertel 343: sub start_textarea {
344: my ($target,$token) = @_;
345: my $currentstring = '';
1.325 albertel 346: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 347: $currentstring = $token->[4];
348: }
349: return $currentstring;
350: }
351:
352: sub end_textarea {
353: my ($target,$token) = @_;
354: my $currentstring = '';
1.325 albertel 355: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 356: $currentstring = $token->[2];
357: }
358: return $currentstring;
359: }
360:
1.181 sakharuk 361: #-- <form> tag (end tag required)
1.122 albertel 362: sub start_form {
363: my ($target,$token) = @_;
364: my $currentstring = '';
1.325 albertel 365: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 366: $currentstring = $token->[4];
367: }
368: return $currentstring;
369: }
370:
371: sub end_form {
372: my ($target,$token) = @_;
373: my $currentstring = '';
1.325 albertel 374: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 375: $currentstring = $token->[2];
376: }
377: return $currentstring;
378: }
379:
1.181 sakharuk 380: #-- <title> tag (end tag required)
1.122 albertel 381: sub start_title {
1.327 albertel 382: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 383: my $currentstring = '';
1.324 albertel 384: if ($target eq 'web' || $target eq 'webgrade') {
1.327 albertel 385: $Apache::londefdef::title =
386: &Apache::lonxml::get_all_text('/title',$parser,$style);
1.122 albertel 387: } elsif ($target eq 'tex') {
1.166 sakharuk 388: $currentstring .= '\keephidden{Title of the document: '
1.122 albertel 389: }
390: if ($target eq 'meta') {
391: $currentstring='<title>';
1.185 albertel 392: &start_output($target);
1.122 albertel 393: }
394: return $currentstring;
395: }
396:
397: sub end_title {
398: my ($target,$token) = @_;
399: my $currentstring = '';
1.324 albertel 400: if ($target eq 'web' || $target eq 'webgrade') {
1.327 albertel 401: # start_title takes care of swallowing the title
1.122 albertel 402: } elsif ($target eq 'tex') {
403: $currentstring .= '}';
404: }
405: if ($target eq 'meta') {
1.185 albertel 406: &end_output($target);
1.122 albertel 407: $currentstring='</title>';
408: }
409: return $currentstring;
410: }
411:
1.181 sakharuk 412: #-- <meta> tag (end tag forbidden)
1.122 albertel 413: sub start_meta {
1.299 albertel 414: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 415: my $currentstring = '';
1.325 albertel 416: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 417: my $args='';
418: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
419: if ($args eq '') {
1.299 albertel 420: &Apache::lonxml::get_all_text("/meta",$parser,$style);
1.122 albertel 421: } else {
422: $currentstring = $token->[4];
1.1 sakharuk 423: }
1.135 sakharuk 424: } elsif ($target eq 'meta') {
1.122 albertel 425: unless (&Apache::lonxml::get_param
426: ('http-equiv',$parstack,$safeeval,undef,1)) {
427: my $name=$token->[2]->{'name'};
428: $name=~tr/A-Z/a-z/;
429: $name=~s/\s/\_/gs;
430: $name=~s/\W//gs;
431: if ($name) {
1.154 www 432: $currentstring='<'.$name;
433: my $display=&Apache::lonxml::get_param
434: ('display',$parstack,$safeeval,undef,1);
435: if ($display) {
436: $display=~s/\"/\'/g;
437: $currentstring.=' display="'.$display.'"';
438: }
439: $currentstring.='>'.
1.122 albertel 440: &Apache::lonxml::get_param
441: ('content',$parstack,$safeeval,undef,1).
1.135 sakharuk 442: '</'.$name.'>';
1.1 sakharuk 443: }
1.154 www 444: my $display=&Apache::lonxml::get_param
445: ('display',$parstack,$safeeval,undef,1);
446: if ($display) {
1.204 albertel 447: $display=&HTML::Entities::encode($display,'<>&"');
1.154 www 448: $currentstring.='<'.$name.'.display>'.$display.
449: '</'.$name.'.display>';
450: }
1.1 sakharuk 451: }
1.135 sakharuk 452: } elsif ($target eq 'tex') {
1.151 sakharuk 453: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
454: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
455: if ((not defined $content) && (not defined $name)) {
456: &Apache::lonxml::startredirection();
457: }
1.374 albertel 458: } elsif ($target eq 'edit') {
459: $currentstring .= &Apache::edit::tag_start($target,$token);
460: $currentstring .= &Apache::edit::text_arg('Name:','name',$token,30);
461: $currentstring .= &Apache::edit::text_arg('Content:','content',$token,70);
462: $currentstring .= &Apache::edit::end_row();
463: } elsif ($target eq 'modified') {
464: my $constructtag =
465: &Apache::edit::get_new_args($token,$parstack,$safeeval,
466: 'name','content');
467: if ($constructtag) { $currentstring = &Apache::edit::rebuild_tag($token); }
1.122 albertel 468: }
469: return $currentstring;
470: }
471:
472: sub end_meta {
1.165 albertel 473: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 474: my $currentstring = '';
1.325 albertel 475: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 476: my $args='';
477: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
478: if ($args ne '') {
1.121 www 479: $currentstring = $token->[4];
1.122 albertel 480: }
1.135 sakharuk 481: } elsif ($target eq 'tex') {
1.165 albertel 482: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
483: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
1.164 albertel 484: if ((not defined $content) && (not defined $name)) {
1.169 albertel 485: &Apache::lonxml::endredirection();
1.164 albertel 486: }
1.135 sakharuk 487: }
1.122 albertel 488: return $currentstring;
489: }
490:
1.374 albertel 491: sub insert_meta {
492: return '
493: <meta />';
494: }
495:
1.121 www 496: # accessrule
1.122 albertel 497: sub start_accessrule {
1.299 albertel 498: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 499: my $currentstring = '';
1.373 albertel 500: my $eff =&Apache::lonxml::get_param('effect',$parstack,$safeeval,undef,1);
501: my $realm=&Apache::lonxml::get_param('realm', $parstack,$safeeval,undef,1);
502: my $role =&Apache::lonxml::get_param('role', $parstack,$safeeval,undef,1);
503: my $type =&Apache::lonxml::get_param('type', $parstack,$safeeval,undef,1);
504:
505: my ($dom,$crs,$sec,$separator);
1.369 albertel 506: if ($type eq 'user') {
1.373 albertel 507: ($dom,$crs,$sec)=split(m{/},$realm);
1.369 albertel 508: $crs = &LONCAPA::clean_username($crs);
1.373 albertel 509: $separator = '/';
1.369 albertel 510: } else {
1.373 albertel 511: ($dom,$crs,$sec)=split(/\_/,$realm);
1.369 albertel 512: $crs = &LONCAPA::clean_courseid($crs);
1.373 albertel 513: $separator = '_';
1.369 albertel 514: }
1.373 albertel 515: $dom = &LONCAPA::clean_domain($dom);
516:
1.369 albertel 517: $sec =~s/\W//;
518: $realm = $dom;
1.373 albertel 519: if ($crs =~ /\S/) { $realm .= $separator.$crs; }
520: if ($sec =~ /\S/) { $realm .= $separator.$sec; }
1.369 albertel 521: $role=~s/\W//g;
522:
1.122 albertel 523: if ($target eq 'web') {
524: my $args='';
525: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
526: if ($args eq '') {
1.299 albertel 527: &Apache::lonxml::get_all_text("/accessrule",$parser,$style);
1.122 albertel 528: } else {
529: $currentstring = $token->[4];
530: }
531: }
532: if ($target eq 'meta') {
1.369 albertel 533: $currentstring='<rule>'.$eff.':'.$realm.':'.$role.':'.$type.'</rule>';
1.122 albertel 534: }
535: return $currentstring;
536: }
537:
538: sub end_accessrule {
539: my ($target,$token,$tagstack,$parstack,$parser) = @_;
540: my $currentstring = '';
541: if ($target eq 'web') {
542: my $args='';
543: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
544: if ($args ne '') {
545: $currentstring = $token->[4];
546: }
547: }
548: return $currentstring;
549: }
550:
1.366 albertel 551: sub generate_css_links {
552: my $links;
553: my $css_href = &Apache::lonnet::EXT('resource.0.cssfile');
554: if ($css_href =~ /\S/) {
555: &Apache::lonxml::extlink($css_href);
556: $links .=
557: '<link rel="stylesheet" type="text/css" href="'.$css_href.'" />';
558: }
559: return $links;
560: }
561:
1.181 sakharuk 562: #-- <body> tag (end tag required)
1.122 albertel 563: sub start_body {
564: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
565: my $currentstring = '';
1.244 albertel 566:
1.324 albertel 567: if ($target eq 'web' || $target eq 'webgrade') {
1.170 albertel 568: if ($Apache::lonhomework::parsing_a_problem) {
569: &Apache::lonxml::warning("<body> tag found inside of <problem> tag this can cause problems.");
570: return '';
571: }
1.122 albertel 572:
1.327 albertel 573: if (&is_inside_of($tagstack, "head")) {
574: &end_head(@_);
1.122 albertel 575: }
1.366 albertel 576:
577: my $extra_head = &generate_css_links();
578:
1.327 albertel 579: $currentstring =
580: &Apache::loncommon::start_page($Apache::londefdef::title,
1.366 albertel 581: $Apache::londefdef::head
582: .$extra_head,
1.327 albertel 583: {'add_entries' => $token->[2],
584: 'no_title' => 1,
585: 'force_register' => 1});
586:
1.267 albertel 587: if ($env{'request.state'} ne 'published') {
1.378 albertel 588: $currentstring.=&Apache::lonmenu::constspaceform();
589: $currentstring.=&Apache::londefdef::edit_controls();
1.1 sakharuk 590: }
1.201 albertel 591: $currentstring.=&Apache::lonxml::message_location();
1.122 albertel 592: } elsif ($target eq 'tex') {
593: $currentstring = '\begin{document}';
594: }
595: return $currentstring;
596: }
597:
1.376 albertel 598: sub edit_controls {
1.389 www 599: my $result .= '
1.376 albertel 600: <form method="post">
1.389 www 601: <div class="LC_edit_problem_header">
602: <div class="LC_edit_problem_header_row1">'.
603: &Apache::lonxml::renderingoptions().'
604: <input type="submit" name="changeproblemmode" value="'.&mt('Change View').'" />
605: </div>
1.394 bisitz 606: <div class="LC_edit_problem_header_edit_row"><input type="submit" name="editmode" accesskey="e" value="'.&mt('Edit').'" /></div></div>
1.376 albertel 607: </form>
1.389 www 608: <br />';
1.376 albertel 609: return $result;
610: }
611:
1.122 albertel 612: sub end_body {
1.259 albertel 613: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 614: my $currentstring = &end_p(); # Close off unclosed <p>
1.324 albertel 615: if ($target eq 'web' || $target eq 'webgrade') {
1.327 albertel 616: $currentstring .= &Apache::loncommon::end_page({'discussion' => 1});
1.122 albertel 617: } elsif ($target eq 'tex') {
1.277 foxr 618: $currentstring .= '\strut\newline\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\newline\noindent \end{document}';
1.122 albertel 619: }
620: return $currentstring;
621: }
622:
1.309 albertel 623: # \begin{center} causes a new paragprah spacing that looks odd inside
1.337 foxr 624: # of a table cell. Same at the end of a \center but with a slightly
625: # larger space .. hence center_correction and center_end_correction.
626: #
627: sub center_correction { return '\vspace*{-6 mm}'; }
628: sub center_end_correction { return '\vspace*{-7 mm}'; }
629:
1.181 sakharuk 630: #-- <center> tag (end tag required)
1.122 albertel 631: sub start_center {
1.309 albertel 632: my ($target,$token,$tagstack) = @_;
1.279 foxr 633: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 634: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 635: $currentstring .= $token->[4];
1.122 albertel 636: } elsif ($target eq 'tex') {
1.309 albertel 637: if (&is_inside_of($tagstack, "table")) {
638: $currentstring .= ¢er_correction();
639: }
1.277 foxr 640: $currentstring .= '\begin{center}';
1.144 sakharuk 641: }
1.122 albertel 642: return $currentstring;
643: }
644:
645: sub end_center {
1.309 albertel 646: my ($target,$token,$tagstack) = @_;
1.122 albertel 647: my $currentstring = '';
1.325 albertel 648: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 649: $currentstring = $token->[2];
650: } elsif ($target eq 'tex') {
651: $currentstring = '\end{center}';
1.337 foxr 652: if (&is_inside_of($tagstack, "table")) {
653: $currentstring .= ¢er_end_correction();
654: }
1.144 sakharuk 655: }
1.122 albertel 656: return $currentstring;
657: }
658:
1.181 sakharuk 659: #-- <b> tag (end tag required)
1.279 foxr 660: # NOTE: In TeX mode disables internal <p>
1.122 albertel 661: sub start_b {
662: my ($target,$token) = @_;
663: my $currentstring = '';
1.325 albertel 664: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 665: $currentstring = $token->[4];
666: } elsif ($target eq 'tex') {
1.279 foxr 667: &disable_para();
668: $currentstring .= '\textbf{';
1.122 albertel 669: }
670: return $currentstring;
671: }
672:
673: sub end_b {
674: my ($target,$token) = @_;
675: my $currentstring = '';
1.325 albertel 676: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 677: $currentstring = $token->[2];
678: } elsif ($target eq 'tex') {
1.279 foxr 679: &enable_para();
680: $currentstring = '}';
1.122 albertel 681: }
682: return $currentstring;
683: }
1.35 sakharuk 684:
1.181 sakharuk 685: #-- <strong> tag (end tag required)
1.279 foxr 686: # NOTE: in TeX mode disables internal <p>
1.122 albertel 687: sub start_strong {
688: my ($target,$token) = @_;
689: my $currentstring = '';
1.325 albertel 690: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 691: $currentstring = $token->[4];
692: } elsif ($target eq 'tex') {
1.279 foxr 693: &disable_para();
1.122 albertel 694: $currentstring = '\textbf{';
695: }
696: return $currentstring;
697: }
698:
699: sub end_strong {
700: my ($target,$token) = @_;
701: my $currentstring = '';
1.325 albertel 702: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 703: $currentstring = $token->[2];
704: } elsif ($target eq 'tex') {
1.279 foxr 705: &enable_para();
1.122 albertel 706: $currentstring = '}';
1.144 sakharuk 707: }
1.122 albertel 708: return $currentstring;
709: }
710:
1.181 sakharuk 711: #-- <h1> tag (end tag required)
1.122 albertel 712: sub start_h1 {
1.125 sakharuk 713: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 714: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 715: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 716: $currentstring .= $token->[4];
717: } elsif ($target eq 'tex') {
1.125 sakharuk 718: my $pre;
1.199 albertel 719: my $align=lc(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1));
1.212 sakharuk 720: if ($align eq 'center') {
1.125 sakharuk 721: $pre='\begin{center}';
722: } elsif ($align eq 'left') {
723: $pre='\rlap{';
724: } elsif ($align eq 'right') {
725: $pre=' \hfill \llap{';
726: }
727: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
728: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 729: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 730: } elsif ($target eq 'meta') {
1.277 foxr 731: $currentstring.='<subject>';
1.185 albertel 732: &start_output($target);
1.122 albertel 733: }
734: return $currentstring;
735: }
736:
737: sub end_h1 {
1.125 sakharuk 738: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 739: my $currentstring = '';
1.325 albertel 740: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 741: $currentstring .= $token->[2];
742: } elsif ($target eq 'tex') {
1.212 sakharuk 743: my $post='\vskip 0 mm ';
1.125 sakharuk 744: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 745: if ($align eq 'center') {
1.125 sakharuk 746: $post='\end{center}';
747: } elsif ($align eq 'left') {
748: $post='} \hfill'.'\vskip 0 mm ';
749: } elsif ($align eq 'right') {
750: $post='}'.'\vskip 0 mm ';
751: }
752: $currentstring .= '}}'.$post;
1.122 albertel 753: } elsif ($target eq 'meta') {
1.185 albertel 754: &end_output($target);
1.122 albertel 755: $currentstring='</subject>';
756: }
757: return $currentstring;
758: }
759:
1.35 sakharuk 760: #-- <h2> tag
1.122 albertel 761: sub start_h2 {
1.125 sakharuk 762: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 763: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 764: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 765: $currentstring .= $token->[4];
766: } elsif ($target eq 'tex') {
1.125 sakharuk 767: my $pre;
768: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 769: if ($align eq 'center') {
1.125 sakharuk 770: $pre='\begin{center}';
771: } elsif ($align eq 'left') {
772: $pre='\rlap{';
773: } elsif ($align eq 'right') {
774: $pre=' \hfill \llap{';
775: }
776: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
777: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 778: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 779: }
780: return $currentstring;
781: }
782:
783: sub end_h2 {
1.125 sakharuk 784: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 785: my $currentstring = '';
1.325 albertel 786: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 787: $currentstring .= $token->[2];
788: } elsif ($target eq 'tex') {
1.212 sakharuk 789: my $post='\vskip 0 mm ';
1.125 sakharuk 790: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 791: if ($align eq 'center') {
1.125 sakharuk 792: $post='\end{center}';
793: } elsif ($align eq 'left') {
794: $post='} \hfill'.'\vskip 0 mm ';
795: } elsif ($align eq 'right') {
796: $post='}'.'\vskip 0 mm ';
797: }
798: $currentstring .= '}}'.$post;
1.122 albertel 799: }
800: return $currentstring;
801: }
802:
1.35 sakharuk 803: #-- <h3> tag
1.122 albertel 804: sub start_h3 {
1.125 sakharuk 805: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 806: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 807: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 808: $currentstring .= $token->[4];
809: } elsif ($target eq 'tex') {
1.125 sakharuk 810: my $pre;
811: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 812: if ($align eq 'center') {
1.125 sakharuk 813: $pre='\begin{center}';
814: } elsif ($align eq 'left') {
815: $pre='\rlap{';
816: } elsif ($align eq 'right') {
817: $pre=' \hfill \llap{';
818: }
819: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
820: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 821: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 822: }
823: return $currentstring;
824: }
825:
826: sub end_h3 {
1.125 sakharuk 827: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 828: my $currentstring = '';
1.325 albertel 829: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 830: $currentstring .= $token->[2];
831: } elsif ($target eq 'tex') {
1.212 sakharuk 832: my $post='\vskip 0 mm ';
1.125 sakharuk 833: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 834: if ($align eq 'center') {
1.125 sakharuk 835: $post='\end{center}';
836: } elsif ($align eq 'left') {
837: $post='} \hfill'.'\vskip 0 mm ';
838: } elsif ($align eq 'right') {
839: $post='}'.'\vskip 0 mm ';
840: }
841: $currentstring .= '}}'.$post;
1.122 albertel 842: }
843: return $currentstring;
844: }
845:
1.35 sakharuk 846: #-- <h4> tag
1.122 albertel 847: sub start_h4 {
1.125 sakharuk 848: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 849: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 850: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 851: $currentstring .= $token->[4];
852: } elsif ($target eq 'tex') {
1.125 sakharuk 853: my $pre;
854: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 855: if ($align eq 'center') {
1.125 sakharuk 856: $pre='\begin{center}';
857: } elsif ($align eq 'left') {
858: $pre='\rlap{';
859: } elsif ($align eq 'right') {
860: $pre=' \hfill \llap{';
861: }
862: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
863: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 864: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 865: }
866: return $currentstring;
867: }
868:
869: sub end_h4 {
1.125 sakharuk 870: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 871: my $currentstring = '';
1.325 albertel 872: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 873: $currentstring .= $token->[2];
874: } elsif ($target eq 'tex') {
1.212 sakharuk 875: my $post='\vskip 0 mm ';
1.125 sakharuk 876: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 877: if ($align eq 'center') {
1.125 sakharuk 878: $post='\end{center}';
879: } elsif ($align eq 'left') {
880: $post='} \hfill'.'\vskip 0 mm ';
881: } elsif ($align eq 'right') {
882: $post='}'.'\vskip 0 mm ';
883: }
884: $currentstring .= '}}'.$post;
1.122 albertel 885: }
886: return $currentstring;
887: }
888:
1.35 sakharuk 889: #-- <h5> tag
1.122 albertel 890: sub start_h5 {
1.125 sakharuk 891: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 892: my $currentstring = &end_p(); # Close off any prior paras.
1.325 albertel 893: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 894: $currentstring .= $token->[4];
895: } elsif ($target eq 'tex') {
1.125 sakharuk 896: my $pre;
897: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 898: if ($align eq 'center') {
1.125 sakharuk 899: $pre='\begin{center}';
900: } elsif ($align eq 'left') {
901: $pre='\rlap{';
902: } elsif ($align eq 'right') {
903: $pre=' \hfill \llap{';
904: }
905: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
906: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 907: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 908: }
909: return $currentstring;
910: }
911:
912: sub end_h5 {
1.125 sakharuk 913: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 914: my $currentstring = '';
1.325 albertel 915: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 916: $currentstring .= $token->[2];
917: } elsif ($target eq 'tex') {
1.212 sakharuk 918: my $post='\vskip 0 mm ';
1.125 sakharuk 919: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 920: if ($align eq 'center') {
1.125 sakharuk 921: $post='\end{center}';
922: } elsif ($align eq 'left') {
923: $post='} \hfill'.'\vskip 0 mm ';
924: } elsif ($align eq 'right') {
925: $post='}'.'\vskip 0 mm ';
926: }
927: $currentstring .= '}}'.$post;
1.122 albertel 928: }
929: return $currentstring;
930: }
931:
1.35 sakharuk 932: #-- <h6> tag
1.122 albertel 933: sub start_h6 {
1.125 sakharuk 934: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 935: my $currentstring = &end_p(); # Close off any prior paras.
1.325 albertel 936: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 937: $currentstring .= $token->[4];
938: } elsif ($target eq 'tex') {
1.125 sakharuk 939: my $pre;
940: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 941: if ($align eq 'center') {
1.125 sakharuk 942: $pre='\begin{center}';
943: } elsif ($align eq 'left') {
944: $pre='\rlap{';
945: } elsif ($align eq 'right') {
946: $pre=' \hfill \llap{';
947: }
948: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
949: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 950: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 951: }
952: return $currentstring;
953: }
954:
955: sub end_h6 {
1.125 sakharuk 956: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 957: my $currentstring = '';
1.325 albertel 958: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 959: $currentstring .= $token->[2];
960: } elsif ($target eq 'tex') {
1.212 sakharuk 961: my $post='\vskip 0 mm ';
1.125 sakharuk 962: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 963: if ($align eq 'center') {
1.125 sakharuk 964: $post='\end{center}';
965: } elsif ($align eq 'left') {
966: $post='} \hfill'.'\vskip 0 mm ';
967: } elsif ($align eq 'right') {
968: $post='}'.'\vskip 0 mm ';
969: }
970: $currentstring .= '}}'.$post;
1.122 albertel 971: }
972: return $currentstring;
973: }
974:
1.181 sakharuk 975: #--- <cite> tag (end tag required)
1.122 albertel 976: sub start_cite {
977: my ($target,$token) = @_;
978: my $currentstring = '';
1.325 albertel 979: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 980: $currentstring .= $token->[4];
981: } elsif ($target eq 'tex') {
1.179 sakharuk 982: $currentstring .= '\textit{';
1.144 sakharuk 983: }
1.122 albertel 984: return $currentstring;
985: }
986:
987: sub end_cite {
988: my ($target,$token) = @_;
989: my $currentstring = '';
1.325 albertel 990: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 991: $currentstring .= $token->[2];
992: } elsif ($target eq 'tex') {
1.179 sakharuk 993: $currentstring .= '}';
1.144 sakharuk 994: }
1.122 albertel 995: return $currentstring;
996: }
997:
1.181 sakharuk 998: #-- <i> tag (end tag required)
1.122 albertel 999: sub start_i {
1000: my ($target,$token) = @_;
1001: my $currentstring = '';
1.325 albertel 1002: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1003: $currentstring .= $token->[4];
1004: } elsif ($target eq 'tex') {
1005: $currentstring .= '\textit{';
1.144 sakharuk 1006: }
1.122 albertel 1007: return $currentstring;
1008: }
1009:
1010: sub end_i {
1011: my ($target,$token) = @_;
1012: my $currentstring = '';
1.325 albertel 1013: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1014: $currentstring .= $token->[2];
1015: } elsif ($target eq 'tex') {
1016: $currentstring .= '}';
1017: }
1018: return $currentstring;
1019: }
1020:
1.181 sakharuk 1021: #-- <address> tag (end tag required)
1.122 albertel 1022: sub start_address {
1023: my ($target,$token) = @_;
1024: my $currentstring = '';
1.325 albertel 1025: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1026: $currentstring .= $token->[4];
1027: } elsif ($target eq 'tex') {
1.179 sakharuk 1028: $currentstring .= '\textit{';
1.144 sakharuk 1029: }
1.122 albertel 1030: return $currentstring;
1031: }
1032:
1033: sub end_address {
1034: my ($target,$token) = @_;
1035: my $currentstring = '';
1.325 albertel 1036: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1037: $currentstring .= $token->[2];
1038: } elsif ($target eq 'tex') {
1.179 sakharuk 1039: $currentstring .= '}';
1.122 albertel 1040: }
1041: return $currentstring;
1042: }
1043:
1.181 sakharuk 1044: #-- <dfn> tag (end tag required)
1.122 albertel 1045: sub start_dfn {
1046: my ($target,$token) = @_;
1047: my $currentstring = '';
1.325 albertel 1048: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1049: $currentstring .= $token->[4];
1050: } elsif ($target eq 'tex') {
1.179 sakharuk 1051: $currentstring .= '\textit{';
1.122 albertel 1052: }
1053: return $currentstring;
1054: }
1055:
1056: sub end_dfn {
1057: my ($target,$token) = @_;
1058: my $currentstring = '';
1.325 albertel 1059: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1060: $currentstring .= $token->[2];
1061: } elsif ($target eq 'tex') {
1.179 sakharuk 1062: $currentstring .= '}';
1.144 sakharuk 1063: }
1.122 albertel 1064: return $currentstring;
1065: }
1066:
1.181 sakharuk 1067: #-- <tt> tag (end tag required)
1.122 albertel 1068: sub start_tt {
1069: my ($target,$token) = @_;
1070: my $currentstring = '';
1.325 albertel 1071: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1072: $currentstring .= $token->[4];
1073: } elsif ($target eq 'tex') {
1074: $currentstring .= '\texttt{';
1.144 sakharuk 1075: }
1.122 albertel 1076: return $currentstring;
1077: }
1078:
1079: sub end_tt {
1080: my ($target,$token) = @_;
1081: my $currentstring = '';
1.325 albertel 1082: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1083: $currentstring .= $token->[2];
1084: } elsif ($target eq 'tex') {
1085: $currentstring .= '}';
1086: }
1087: return $currentstring;
1088: }
1089:
1.181 sakharuk 1090: #-- <kbd> tag (end tag required)
1.122 albertel 1091: sub start_kbd {
1092: my ($target,$token) = @_;
1093: my $currentstring = '';
1.325 albertel 1094: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1095: $currentstring .= $token->[4];
1096: } elsif ($target eq 'tex') {
1.179 sakharuk 1097: $currentstring .= '\texttt{';
1.144 sakharuk 1098: }
1.122 albertel 1099: return $currentstring;
1100: }
1101:
1102: sub end_kbd {
1103: my ($target,$token) = @_;
1104: my $currentstring = '';
1.325 albertel 1105: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1106: $currentstring .= $token->[2];
1107: } elsif ($target eq 'tex') {
1.179 sakharuk 1108: $currentstring .= '}';
1.144 sakharuk 1109: }
1.122 albertel 1110: return $currentstring;
1111: }
1112:
1.181 sakharuk 1113: #-- <code> tag (end tag required)
1.122 albertel 1114: sub start_code {
1115: my ($target,$token) = @_;
1116: my $currentstring = '';
1.325 albertel 1117: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1118: $currentstring .= $token->[4];
1119: } elsif ($target eq 'tex') {
1120: $currentstring .= '\texttt{';
1121: }
1122: return $currentstring;
1123: }
1124:
1125: sub end_code {
1126: my ($target,$token) = @_;
1127: my $currentstring = '';
1.325 albertel 1128: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1129: $currentstring .= $token->[2];
1130: } elsif ($target eq 'tex') {
1131: $currentstring .= '}';
1132: }
1133: return $currentstring;
1134: }
1135:
1.181 sakharuk 1136: #-- <em> tag (end tag required)
1.122 albertel 1137: sub start_em {
1138: my ($target,$token) = @_;
1139: my $currentstring = '';
1.325 albertel 1140: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1141: $currentstring .= $token->[4];
1142: } elsif ($target eq 'tex') {
1143: $currentstring .= '\emph{';
1.144 sakharuk 1144: }
1.122 albertel 1145: return $currentstring;
1146: }
1147:
1148: sub end_em {
1149: my ($target,$token) = @_;
1150: my $currentstring = '';
1.325 albertel 1151: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1152: $currentstring .= $token->[2];
1153: } elsif ($target eq 'tex') {
1154: $currentstring .= '}';
1.144 sakharuk 1155: }
1.122 albertel 1156: return $currentstring;
1157: }
1158:
1.181 sakharuk 1159: #-- <q> tag (end tag required)
1.122 albertel 1160: sub start_q {
1161: my ($target,$token) = @_;
1162: my $currentstring = '';
1.325 albertel 1163: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1164: $currentstring .= $token->[4];
1165: } elsif ($target eq 'tex') {
1.179 sakharuk 1166: $currentstring .= '\emph{';
1.122 albertel 1167: }
1168: return $currentstring;
1169: }
1170:
1171: sub end_q {
1172: my ($target,$token) = @_;
1173: my $currentstring = '';
1.325 albertel 1174: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1175: $currentstring .= $token->[2];
1176: } elsif ($target eq 'tex') {
1.179 sakharuk 1177: $currentstring .= '}';
1.144 sakharuk 1178: }
1.122 albertel 1179: return $currentstring;
1180: }
1181:
1.277 foxr 1182: # <p> is a bit strange since it does not require a closing </p>
1183: # However in latex, we must often output closing stuff to end
1184: # environments and {}'s etc. Therefore we do all the work
1185: # of figuring out the ending strings in the start tag processing,
1186: # and provide a mechanism to output the stop text external
1187: # to tag processing.
1188: #
1189: {
1190:
1191: my $closing_string = ''; # String required to close <p>
1192:
1.279 foxr 1193: # Some tags are <p> fragile meaning that <p> inside of them
1194: # does not work within TeX mode. This is managed via the
1195: # counter below:
1196: #
1197:
1198: my $para_disabled = 0;
1199:
1200: sub disable_para {
1201: $para_disabled++;
1202: }
1203: sub enable_para {
1204: $para_disabled--;
1205: }
1206:
1207:
1.181 sakharuk 1208: #-- <p> tag (end tag optional)
1.198 sakharuk 1209: #optional attribute - align="center|left|right"
1.122 albertel 1210: sub start_p {
1.157 sakharuk 1211: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1212: my $currentstring = '';
1.325 albertel 1213: if ($target eq 'web' || $target eq 'webgrade') {
1.279 foxr 1214: $currentstring .= &end_p(); # close off prior para if in progress.
1.122 albertel 1215: $currentstring .= $token->[4];
1.279 foxr 1216: if (! ($currentstring =~ /\//)) {
1217: $closing_string = '</p>'; # Deal correctly with <p /> e.g.
1218: }
1219: } elsif ($target eq 'tex' && !$para_disabled) {
1.313 foxr 1220:
1.279 foxr 1221: $currentstring .= &end_p(); # close off prior para if in progress.
1.198 sakharuk 1222: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1223: if ($align eq 'center') {
1.333 albertel 1224: $currentstring .='\begin{center}\par ';
1.277 foxr 1225: $closing_string = '\end{center}';
1.309 albertel 1226: if (&is_inside_of($tagstack, "table")) {
1227: $currentstring = ¢er_correction().$currentstring;
1228: }
1.198 sakharuk 1229: } elsif ($align eq 'right') {
1.323 foxr 1230: $currentstring.="\n".'{\flushright ';
1231: # $currentstring.='\makebox['.$env{'form.textwidth'}.']{\hfill\llap{';
1232: $closing_string= "}\n";
1.198 sakharuk 1233: } elsif ($align eq 'left') {
1.323 foxr 1234: $currentstring.= "\n".'{\flushleft ';
1235: # $currentstring.='\noindent\makebox['.$env{'form.textwidth'}.']{{';
1236: $closing_string = "}\n";
1.216 matthew 1237: } else {
1.277 foxr 1238: $currentstring.='\par ';
1.313 foxr 1239: if (&is_inside_of($tagstack, 'table')) {
1.315 foxr 1240: $closing_string = '\vskip 0pt'; # Seems to be consistent with <p> in tables.
1.313 foxr 1241: } else {
1242: $closing_string = '\strut\\\\\strut ';
1243: }
1.216 matthew 1244: }
1.277 foxr 1245:
1.144 sakharuk 1246: }
1.122 albertel 1247: return $currentstring;
1248: }
1.277 foxr 1249: #
1250: # End paragraph processing just requires that we output the
1251: # closing string that was saved and blank it.
1252: sub end_p {
1.279 foxr 1253: # Note only 'tex' mode uses disable_para and enable_para
1254: # so we don't need to know the target in the check below:
1255:
1256: if (!$para_disabled) {
1257: my $current_string = $closing_string;
1258: $closing_string = ''; # Not in a para anymore.
1259: return $current_string;
1260: } else {
1261: return '';
1262: }
1.122 albertel 1263:
1264: }
1.277 foxr 1265: }
1.181 sakharuk 1266: #-- <br> tag (end tag forbidden)
1.122 albertel 1267: sub start_br {
1268: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1269: my $currentstring = '';
1.325 albertel 1270: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1271: $currentstring .= $token->[4];
1272: } elsif ($target eq 'tex') {
1.227 sakharuk 1273: my @tempo=@$tagstack;
1.229 sakharuk 1274: my $signal=0;
1.287 foxr 1275: # Not going to factor this to is_inside_of since that would require
1276: # multiple stack traversals.
1277: #
1.227 sakharuk 1278: for (my $i=$#tempo;$i>=0;$i--) {
1279: if (($tempo[$i] eq 'b') || ($tempo[$i] eq 'strong') ||
1.334 albertel 1280: ($tempo[$i] eq 'ol') || ($tempo[$i] eq 'ul')) {
1.229 sakharuk 1281: $signal=1;
1.334 albertel 1282: }
1283: if (($tempo[$i] eq 'td') || ($tempo[$i] eq 'th')) {
1.336 foxr 1284: $signal = 1;
1.227 sakharuk 1285: }
1286: }
1.375 foxr 1287: if ($signal != 1) {
1.219 sakharuk 1288: $currentstring .= '\strut \\\\ \strut ';
1.1 sakharuk 1289: }
1.355 foxr 1290:
1.144 sakharuk 1291: }
1.122 albertel 1292: return $currentstring;
1293: }
1294:
1295: sub end_br {
1296: my ($target,$token) = @_;
1297: my $currentstring = '';
1.325 albertel 1298: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1299: $currentstring .= $token->[2];
1300: }
1301: return $currentstring;
1302: }
1303:
1.181 sakharuk 1304: #-- <big> tag (end tag required)
1.122 albertel 1305: sub start_big {
1306: my ($target,$token) = @_;
1307: my $currentstring = '';
1.325 albertel 1308: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1309: $currentstring .= $token->[4];
1310: } elsif ($target eq 'tex') {
1.137 sakharuk 1311: $currentstring .= '{\large ';
1.144 sakharuk 1312: }
1.122 albertel 1313: return $currentstring;
1314: }
1315:
1316: sub end_big {
1317: my ($target,$token) = @_;
1318: my $currentstring = '';
1.325 albertel 1319: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1320: $currentstring .= $token->[2];
1321: } elsif ($target eq 'tex') {
1322: $currentstring .= '}';
1323: }
1324: return $currentstring;
1325: }
1326:
1.181 sakharuk 1327: #-- <small> tag (end tag required)
1.122 albertel 1328: sub start_small {
1329: my ($target,$token) = @_;
1330: my $currentstring = '';
1.325 albertel 1331: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1332: $currentstring .= $token->[4];
1333: } elsif ($target eq 'tex') {
1334: $currentstring .= '{\footnotesize ';
1.144 sakharuk 1335: }
1.122 albertel 1336: return $currentstring;
1337: }
1338:
1339: sub end_small {
1340: my ($target,$token) = @_;
1341: my $currentstring = '';
1.325 albertel 1342: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1343: $currentstring .= $token->[2];
1344: } elsif ($target eq 'tex') {
1345: $currentstring .= '}';
1346: }
1347: return $currentstring;
1348: }
1349:
1.181 sakharuk 1350: #-- <basefont> tag (end tag forbidden)
1.122 albertel 1351: sub start_basefont {
1.126 sakharuk 1352: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.122 albertel 1353: my $currentstring = '';
1.325 albertel 1354: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1355: $currentstring = $token->[4];
1.126 sakharuk 1356: } elsif ($target eq 'tex') {
1357: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1358: if (defined $basesize) {
1359: $currentstring = '{\\'.$basesize.' ';
1360: }
1361: }
1.122 albertel 1362: return $currentstring;
1363: }
1364:
1365: sub end_basefont {
1.126 sakharuk 1366: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1367: my $currentstring = '';
1.325 albertel 1368: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1369: $currentstring = $token->[4];
1.126 sakharuk 1370: } elsif ($target eq 'tex') {
1371: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1372: if (defined $basesize) {
1373: $currentstring = '}';
1374: }
1375: }
1.122 albertel 1376: return $currentstring;
1377: }
1378:
1.181 sakharuk 1379: #-- <font> tag (end tag required)
1.122 albertel 1380: sub start_font {
1381: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1382: my $currentstring = '';
1.325 albertel 1383: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1384: my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
1.204 albertel 1385: if ($face!~/symbol/i) {
1.267 albertel 1386: if (($env{'browser.fontenhance'} eq 'on') ||
1387: ($env{'browser.blackwhite'} eq 'on')) { return ''; }
1.155 www 1388: }
1.122 albertel 1389: $currentstring = $token->[4];
1.126 sakharuk 1390: } elsif ($target eq 'tex') {
1391: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1392: if (defined $fontsize) {
1393: $currentstring = '{\\'.$fontsize.' ';
1394: }
1395: }
1.122 albertel 1396: return $currentstring;
1397: }
1398:
1399: sub end_font {
1400: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1401: my $currentstring = '';
1.325 albertel 1402: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1403: $currentstring = $token->[2];
1.126 sakharuk 1404: } elsif ($target eq 'tex') {
1405: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1406: if (defined $fontsize) {
1407: $currentstring = '}';
1408: }
1409: }
1.122 albertel 1410: return $currentstring;
1411: }
1412:
1.181 sakharuk 1413: #-- <strike> tag (end tag required)
1.122 albertel 1414: sub start_strike {
1415: my ($target,$token) = @_;
1416: my $currentstring = '';
1.325 albertel 1417: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1418: $currentstring .= $token->[4];
1419: } elsif ($target eq 'tex') {
1420: &Apache::lonxml::startredirection();
1421: }
1422: return $currentstring;
1423: }
1424:
1425: sub end_strike {
1426: my ($target,$token) = @_;
1427: my $currentstring = '';
1.325 albertel 1428: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1429: $currentstring .= $token->[2];
1430: } elsif ($target eq 'tex') {
1431: $currentstring=&Apache::lonxml::endredirection();
1432: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1433: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1434: $currentstring=~s/(\S)\s*$/$1\}/;
1435: }
1436: return $currentstring;
1437: }
1438:
1.181 sakharuk 1439: #-- <s> tag (end tag required)
1.122 albertel 1440: sub start_s {
1441: my ($target,$token) = @_;
1442: my $currentstring = '';
1.325 albertel 1443: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1444: $currentstring .= $token->[4];
1445: } elsif ($target eq 'tex') {
1446: &Apache::lonxml::startredirection();
1447: }
1448: return $currentstring;
1449: }
1450:
1451: sub end_s {
1452: my ($target,$token) = @_;
1453: my $currentstring = '';
1.325 albertel 1454: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1455: $currentstring .= $token->[2];
1456: } elsif ($target eq 'tex') {
1457: $currentstring=&Apache::lonxml::endredirection();
1458: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1459: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1460: $currentstring=~s/(\S)\s*$/$1\}/;
1461: }
1462: return $currentstring;
1463: }
1464:
1.181 sakharuk 1465: #-- <sub> tag (end tag required)
1.122 albertel 1466: sub start_sub {
1467: my ($target,$token) = @_;
1468: my $currentstring = '';
1.325 albertel 1469: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1470: $currentstring .= $token->[4];
1471: } elsif ($target eq 'tex') {
1.355 foxr 1472: $currentstring .= '\raisebox{-\smallskipamount}{\scriptsize{';
1.122 albertel 1473: }
1474: return $currentstring;
1475: }
1476:
1477: sub end_sub {
1478: my ($target,$token) = @_;
1479: my $currentstring = '';
1.325 albertel 1480: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1481: $currentstring .= $token->[2];
1482: } elsif ($target eq 'tex') {
1.202 sakharuk 1483: $currentstring .= '}}';
1.122 albertel 1484: }
1485: return $currentstring;
1486: }
1487:
1.181 sakharuk 1488: #-- <sup> tag (end tag required)
1.122 albertel 1489: sub start_sup {
1490: my ($target,$token) = @_;
1491: my $currentstring = '';
1.325 albertel 1492: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1493: $currentstring .= $token->[4];
1494: } elsif ($target eq 'tex') {
1.355 foxr 1495: $currentstring .= '\raisebox{\smallskipamount}{\scriptsize{';
1.122 albertel 1496: }
1497: return $currentstring;
1498: }
1499:
1500: sub end_sup {
1501: my ($target,$token) = @_;
1502: my $currentstring = '';
1.325 albertel 1503: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1504: $currentstring .= $token->[2];
1505: } elsif ($target eq 'tex') {
1.202 sakharuk 1506: $currentstring .= '}}';
1.122 albertel 1507: }
1508: return $currentstring;
1509: }
1510:
1.181 sakharuk 1511: #-- <hr> tag (end tag forbidden)
1.122 albertel 1512: sub start_hr {
1.124 sakharuk 1513: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1514: my $currentstring = &end_p(); # End enclosing para.
1.325 albertel 1515: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1516: $currentstring .= $token->[4];
1517: } elsif ($target eq 'tex') {
1.361 foxr 1518:
1519: # <hr /> can't be inside of <sup><sub> thank you LaTeX.
1520: #
1521: my $restart_sub = 0;
1522: my $restart_sup = 0;
1523:
1524: # Since <sub> and <sup> are simple tags it's ok to turn off/on
1525: # using the start_ stop_ functions.. those tags only care about
1526: # $target.
1527:
1528: if (&is_inside_of($tagstack, "sub")) {
1529: $restart_sub = 1;
1530: $currentstring .= &end_sub($target, $token, $tagstack,
1531: $parstack, $parser, $safeeval);
1532: }
1533: if (&is_inside_of($tagstack, "sup")) {
1534: $restart_sup = 1;
1535: $currentstring .= &end_sup($target, $token, $tagstack,
1536: $parstack, $parser, $safeeval);
1537: }
1538:
1.149 sakharuk 1539: my $LaTeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1.124 sakharuk 1540: if (defined $LaTeXwidth) {
1541: if ($LaTeXwidth=~/^%/) {
1542: substr($LaTeXwidth,0,1)='';
1543: $LaTeXwidth=($LaTeXwidth/100).'\textwidth';
1544: }
1545: } else {
1.148 sakharuk 1546: $LaTeXwidth ='0.9\textwidth';
1.124 sakharuk 1547: }
1548: my ($pre,$post);
1549: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1550: if (($align eq 'center') || (not defined $align)) {
1551: $pre=''; $post='';
1552: } elsif ($align eq 'left') {
1553: $pre='\rlap{'; $post='} \hfill';
1554: } elsif ($align eq 'right') {
1555: $pre=' \hfill \llap{'; $post='}';
1556: }
1.148 sakharuk 1557: $currentstring .= ' \vskip 0 mm \noindent\makebox['.$LaTeXwidth.']{'.$pre.'\makebox['.
1.124 sakharuk 1558: $LaTeXwidth.'][b]{\hrulefill}'.$post.'}\vskip 0 mm ';
1.361 foxr 1559: # Turn stuff back on that we can't be inside of.
1560:
1561: if ($restart_sub) {
1562: $currentstring .= &start_sub($target, $token, $tagstack,
1563: $parstack, $parser, $safeeval);
1564: }
1565: if ($restart_sup) {
1566: $currentstring .= &start_sup($target, $token, $tagstack,
1567: $parstack, $parser, $safeeval);
1568: }
1.122 albertel 1569: }
1570: return $currentstring;
1571: }
1572:
1573: sub end_hr {
1574: my ($target,$token) = @_;
1575: my $currentstring = '';
1.325 albertel 1576: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1577: $currentstring .= $token->[2];
1.148 sakharuk 1578: }
1.122 albertel 1579: return $currentstring;
1580: }
1581:
1.181 sakharuk 1582: #-- <div> tag (end tag required)
1.280 foxr 1583: {
1584:
1585: # Since div can be nested, the stack below is used
1586: # in 'tex' mode to store the ending strings
1587: # for the div stack.
1588:
1589: my @div_end_stack;
1590:
1.122 albertel 1591: sub start_div {
1.280 foxr 1592: my ($target,$token, $tagstack, $parstack, $parser, $safeeval) = @_;
1.279 foxr 1593: my $currentstring = &end_p(); # Close enclosing para.
1.325 albertel 1594: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1595: $currentstring .= $token->[4];
1596: }
1.280 foxr 1597: if ($target eq 'tex') {
1598: # 4 possible alignments: left, right, center, and -missing-.
1.380 foxr 1599: # If inside a table row, we must let the table logic
1600: # do the alignment, however.
1601: #
1.280 foxr 1602:
1603: my $endstring = '';
1604:
1605: my $align = lc(&Apache::lonxml::get_param('align', $parstack,
1606: $safeeval, undef, 1));
1607: if ($align eq 'center') {
1608: $currentstring .= '\begin{center}';
1609: $endstring = '\end{center}';
1.309 albertel 1610: if (&is_inside_of($tagstack, "table")) {
1611: $currentstring = ¢er_correction().$currentstring;
1.380 foxr 1612: $endstring .= ¢er_end_correction();
1.309 albertel 1613: }
1.280 foxr 1614: }
1615: elsif ($align eq 'right') {
1616: $currentstring .= '\begin{flushright}';
1617: $endstring .= '\end{flushright}';
1618: } elsif ($align eq 'left') {
1619: $currentstring .= '\begin{flushleft}';
1620: $endstring = '\end{flushleft}';
1621: } else {
1622:
1623: }
1624: $currentstring .= "\n"; # For human readability.
1625: $endstring = "\n$endstring\n"; # For human readability
1626: push(@div_end_stack, $endstring);
1627: }
1.122 albertel 1628: return $currentstring;
1629: }
1630:
1631: sub end_div {
1632: my ($target,$token) = @_;
1633: my $currentstring = '';
1.325 albertel 1634: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1635: $currentstring .= $token->[2];
1.280 foxr 1636: }
1637: if ($target eq 'tex') {
1638: my $endstring = pop @div_end_stack;
1639: $currentstring .= $endstring;
1640: }
1.122 albertel 1641: return $currentstring;
1642: }
1.280 foxr 1643: }
1.122 albertel 1644:
1.181 sakharuk 1645: #-- <a> tag (end tag required)
1.122 albertel 1646: sub start_a {
1.149 sakharuk 1647: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1648: my $currentstring = '';
1.325 albertel 1649: if ($target eq 'web' || $target eq 'webgrade') {
1.250 albertel 1650: my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
1651: undef,1);
1652: $currentstring=&Apache::lonenc::encrypt_ref($token,{'href'=>$href});
1.396.2.2! raeburn 1653: if ($href =~ /\S/) {
! 1654: if ($href !~ m{^https?://}) {
! 1655: my $url=&Apache::lonnet::hreflocation('',$env{'request.filename'});
! 1656: my $linkurl;
! 1657: if ($href =~ m{^/uploaded/}) {
! 1658: $linkurl = $href;
! 1659: } elsif ($href =~ m{^[^/]}) {
! 1660: my $path = $url;
! 1661: $path =~ s{[^/]*$}{};
! 1662: $linkurl = $path.$href;
! 1663: }
! 1664: if ($linkurl =~ m{^/uploaded/}) {
! 1665: if (!&Apache::lonnet::allowed('bre',$linkurl)) {
! 1666: if (&Apache::lonnet::is_on_map($url)) {
! 1667: &Apache::lonxml::extlink($linkurl);
! 1668: }
! 1669: }
! 1670: }
! 1671: }
! 1672: }
1.122 albertel 1673: }
1674: return $currentstring;
1675: }
1676:
1677: sub end_a {
1.168 albertel 1678: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1679: my $currentstring = '';
1.325 albertel 1680: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1681: $currentstring .= $token->[2];
1682: }
1.351 foxr 1683: if ($target eq 'tex') {
1.352 albertel 1684: my $href =
1685: &Apache::lonxml::get_param('href',$parstack,$safeeval,undef,1);
1686: my $name =
1687: &Apache::lonxml::get_param('name',$parstack,$safeeval,undef,1);
1.382 www 1688: my $uriprint =
1689: &Apache::lonxml::get_param('uriprint',$parstack,$safeeval,undef,1);
1690: my $anchorprint =
1691: &Apache::lonxml::get_param('anchorprint',$parstack,$safeeval,undef,1);
1692: if (($href =~ /\S/) && ($uriprint=~/^on|uriprint|yes|1$/i)) {
1.352 albertel 1693: $href =~ s/([^\\])%/$1\\\%/g;
1.365 foxr 1694: # Substitute special symbols... and allow line breaks at each /
1695: #
1696: $href = &Apache::lonxml::latex_special_symbols($href);
1697: $href =~ s/\//\/\\-/g; # Map / to /\- to allow hyphenation.
1698: $currentstring .= ' ({\tt URI:'.$href.'})';
1.382 www 1699: } elsif (($name =~ /\S/) && ($anchorprint=~/^on|anchorprint|yes|1$/i)) {
1.352 albertel 1700: $currentstring .= ' ({\tt Anchor:'.&Apache::lonxml::latex_special_symbols($name).'})';
1.351 foxr 1701: } else {
1702: $currentstring.='';
1703: }
1704: }
1.122 albertel 1705: return $currentstring;
1706: }
1707:
1.181 sakharuk 1708: #-- <li> tag (end tag optional)
1.122 albertel 1709: sub start_li {
1.168 albertel 1710: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1711: my $currentstring = '';
1.325 albertel 1712: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1713: $currentstring = $token->[4];
1714: } elsif ($target eq 'tex') {
1.237 sakharuk 1715: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1716: my $value=&Apache::lonxml::get_param('value',$parstack,$safeeval,undef,0);
1.238 albertel 1717: #FIXME need to support types i and I
1718: if ($type=~/disc/) {
1719: $currentstring .= ' \item[$\bullet$] ';
1720: } elsif ($type=~/circle/) {
1721: $currentstring .= ' \item[$\circ$] ';
1.146 sakharuk 1722: } elsif ($type=~/square/) {
1.238 albertel 1723: $currentstring .= ' \item[$\diamond$] ';
1724: } elsif ($type eq '1') {
1725: $currentstring .= ' \item['.($Apache::londefdef::list_index+1).'.]';
1.237 sakharuk 1726: } elsif ($type eq 'A') {
1.238 albertel 1727: $currentstring .= ' \item['.('A'..'Z')[$Apache::londefdef::list_index].'.]';
1.237 sakharuk 1728: } elsif ($type eq 'a') {
1.238 albertel 1729: $currentstring .= ' \item['.('a'..'z')[$Apache::londefdef::list_index].'.]';
1.237 sakharuk 1730: } elsif ($value ne '') {
1731: $currentstring .= ' \item['.$value.'] ';
1.122 albertel 1732: } else {
1.146 sakharuk 1733: $currentstring .= ' \item ';
1.122 albertel 1734: }
1.238 albertel 1735: $Apache::londefdef::list_index++;
1736: }
1.122 albertel 1737: return $currentstring;
1738: }
1739:
1740: sub end_li {
1741: my ($target,$token) = @_;
1.279 foxr 1742: my $currentstring = &end_p(); # In case there's a <p> in the <li>
1.325 albertel 1743: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1744: $currentstring .= $token->[2];
1.122 albertel 1745: }
1746: return $currentstring;
1747: }
1748:
1.181 sakharuk 1749: #-- <u> tag (end tag required)
1.122 albertel 1750: sub start_u {
1751: my ($target,$token) = @_;
1752: my $currentstring = '';
1.325 albertel 1753: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1754: $currentstring .= $token->[4];
1755: } elsif ($target eq 'tex') {
1756: &Apache::lonxml::startredirection();
1757: }
1758: return $currentstring;
1759: }
1760:
1761: sub end_u {
1762: my ($target,$token) = @_;
1763: my $currentstring = '';
1.325 albertel 1764: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1765: $currentstring .= $token->[2];
1766: } elsif ($target eq 'tex') {
1767: $currentstring=&Apache::lonxml::endredirection();
1768: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1769: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1770: $currentstring=~s/(\S)\s*$/$1\}/;
1771: }
1772: return $currentstring;
1773: }
1774:
1.181 sakharuk 1775: #-- <ul> tag (end tag required)
1.122 albertel 1776: sub start_ul {
1.125 sakharuk 1777: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1778: my $currentstring = &end_p(); # Close off enclosing list.
1.325 albertel 1779: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1780: $currentstring .= $token->[4];
1.122 albertel 1781: } elsif ($target eq 'tex') {
1.125 sakharuk 1782: my $TeXtype=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1.238 albertel 1783: $Apache::londefdef::list_index=0;
1.125 sakharuk 1784: if ($TeXtype eq 'disc') {
1.222 sakharuk 1785: $currentstring .= '\renewcommand{\labelitemi}{$\bullet$}'.
1786: '\renewcommand{\labelitemii}{$\bullet$}'.
1787: '\renewcommand{\labelitemiii}{$\bullet$}'.
1788: '\renewcommand{\labelitemiv}{$\bullet$}';
1.125 sakharuk 1789: } elsif ($TeXtype eq 'circle') {
1.222 sakharuk 1790: $currentstring .= '\renewcommand{\labelitemi}{$\circ$}'.
1791: '\renewcommand{\labelitemii}{$\circ$}'.
1792: '\renewcommand{\labelitemiii}{$\circ$}'.
1793: '\renewcommand{\labelitemiv}{$\circ$}';
1.125 sakharuk 1794: } elsif ($TeXtype eq 'square') {
1.222 sakharuk 1795: $currentstring .= '\renewcommand{\labelitemi}{$\diamond$}'.
1796: '\renewcommand{\labelitemii}{$\diamond$}'.
1797: '\renewcommand{\labelitemiii}{$\diamond$}'.
1798: '\renewcommand{\labelitemiv}{$\diamond$}';
1.125 sakharuk 1799: }
1.222 sakharuk 1800: $currentstring .= '\strut \begin{itemize}';
1.122 albertel 1801: }
1802: return $currentstring;
1803: }
1804:
1805: sub end_ul {
1806: my ($target,$token) = @_;
1807: my $currentstring = '';
1.325 albertel 1808: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1809: $currentstring = $token->[2];
1810: } elsif ($target eq 'tex') {
1.222 sakharuk 1811: $currentstring = '\end{itemize} \renewcommand{\labelitemi}{$\bullet$}'.
1812: '\renewcommand{\labelitemii}{$\bullet$}'.
1813: '\renewcommand{\labelitemiii}{$\bullet$}'.
1814: '\renewcommand{\labelitemiv}{$\bullet$}\strut ';
1.122 albertel 1815: }
1816: return $currentstring;
1817: }
1818:
1.181 sakharuk 1819: #-- <menu> tag (end tag required)
1.122 albertel 1820: sub start_menu {
1821: my ($target,$token) = @_;
1822: my $currentstring = '';
1.325 albertel 1823: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1824: $currentstring = $token->[4];
1825: } elsif ($target eq 'tex') {
1826: $currentstring = " \\begin{itemize} ";
1827: }
1828: return $currentstring;
1829: }
1830:
1831: sub end_menu {
1832: my ($target,$token) = @_;
1833: my $currentstring = '';
1.325 albertel 1834: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1835: $currentstring = $token->[2];
1836: } elsif ($target eq 'tex') {
1837: $currentstring = " \\end{itemize}";
1838: }
1839: return $currentstring;
1840: }
1841:
1.181 sakharuk 1842: #-- <dir> tag (end tag required)
1.122 albertel 1843: sub start_dir {
1844: my ($target,$token) = @_;
1.279 foxr 1845: my $currentstring = &end_p(); # In case there's a <p> prior to the list.
1.325 albertel 1846: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1847: $currentstring .= $token->[4];
1.122 albertel 1848: } elsif ($target eq 'tex') {
1.277 foxr 1849: $currentstring .= " \\begin{itemize} ";
1.122 albertel 1850: }
1851: return $currentstring;
1852: }
1853:
1854: sub end_dir {
1855: my ($target,$token) = @_;
1856: my $currentstring = '';
1.325 albertel 1857: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1858: $currentstring = $token->[2];
1859: } elsif ($target eq 'tex') {
1860: $currentstring = " \\end{itemize}";
1861: }
1862: return $currentstring;
1863: }
1864:
1.181 sakharuk 1865: #-- <ol> tag (end tag required)
1.122 albertel 1866: sub start_ol {
1.125 sakharuk 1867: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1868: my $currentstring = &end_p(); # In case there's a <p> prior to the list.
1.325 albertel 1869: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1870: $currentstring .= $token->[4];
1.122 albertel 1871: } elsif ($target eq 'tex') {
1.238 albertel 1872: $Apache::londefdef::list_index=0;
1.125 sakharuk 1873: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1874: if ($type eq '1') {
1.222 sakharuk 1875: $currentstring .= '\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1876: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1877: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1878: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}';
1.125 sakharuk 1879: } elsif ($type eq 'A') {
1.222 sakharuk 1880: $currentstring .= '\renewcommand{\labelenumi}{\Alph{enumi}.}'.
1881: '\renewcommand{\labelenumii}{\Alph{enumii}.}'.
1882: '\renewcommand{\labelenumiii}{\Alph{enumiii}.}'.
1883: '\renewcommand{\labelenumiv}{\Alph{enumiv}.}';
1.125 sakharuk 1884: } elsif ($type eq 'a') {
1.222 sakharuk 1885: $currentstring .= '\renewcommand{\labelenumi}{\alph{enumi}.}'.
1886: '\renewcommand{\labelenumii}{\alph{enumii}.}'.
1887: '\renewcommand{\labelenumiii}{\alph{enumiii}.}'.
1888: '\renewcommand{\labelenumiv}{\alph{enumiv}.}';
1.125 sakharuk 1889: } elsif ($type eq 'i') {
1.222 sakharuk 1890: $currentstring .= '\renewcommand{\labelenumi}{\roman{enumi}.}'.
1891: '\renewcommand{\labelenumii}{\roman{enumii}.}'.
1892: '\renewcommand{\labelenumiii}{\roman{enumiii}.}'.
1893: '\renewcommand{\labelenumiv}{\roman{enumiv}.}';
1.125 sakharuk 1894: } elsif ($type eq 'I') {
1.222 sakharuk 1895: $currentstring .= '\renewcommand{\labelenumi}{\Roman{enumi}.}'.
1896: '\renewcommand{\labelenumii}{\Roman{enumii}.}'.
1897: '\renewcommand{\labelenumiii}{\Roman{enumiii}.}'.
1898: '\renewcommand{\labelenumiv}{\Roman{enumiv}.}';
1.125 sakharuk 1899: }
1.222 sakharuk 1900: $currentstring .= '\strut \begin{enumerate}';
1.122 albertel 1901: }
1902: return $currentstring;
1903: }
1904:
1905: sub end_ol {
1906: my ($target,$token) = @_;
1907: my $currentstring = '';
1.325 albertel 1908: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1909: $currentstring = $token->[2];
1910: } elsif ($target eq 'tex') {
1.222 sakharuk 1911: $currentstring = '\end{enumerate}\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1912: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1913: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1914: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}\strut ';
1.122 albertel 1915: }
1916: return $currentstring;
1917: }
1918:
1.181 sakharuk 1919: #-- <dl> tag (end tag required)
1.122 albertel 1920: sub start_dl {
1921: my ($target,$token) = @_;
1.279 foxr 1922: my $currentstring = &end_p(); # In case there's a <p> unclosed prior to the list.
1.325 albertel 1923: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1924: $currentstring .= $token->[4];
1.122 albertel 1925: } elsif ($target eq 'tex') {
1.277 foxr 1926: $currentstring .= '\begin{description}';
1.243 albertel 1927: $Apache::londefdef::DL++;
1928: push(@Apache::londefdef::description,[]);
1929: $Apache::londefdef::DD[$Apache::londefdef::DL]=0;
1930: $Apache::londefdef::DT[$Apache::londefdef::DL]=0;
1.244 albertel 1931: $Apache::londefdef::seenDT[$Apache::londefdef::DL]=0;
1.122 albertel 1932: }
1933: return $currentstring;
1934: }
1935:
1936: sub end_dl {
1.174 sakharuk 1937: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1938: my $currentstring = '';
1.325 albertel 1939: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1940: $currentstring = $token->[2];
1941: } elsif ($target eq 'tex') {
1.243 albertel 1942: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1943: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
1944: foreach my $element (@{$Apache::londefdef::description[-1]}) {
1.174 sakharuk 1945: $currentstring.=' '.$element.' ';
1946: }
1.243 albertel 1947: pop(@Apache::londefdef::description);
1.174 sakharuk 1948: $currentstring.='\end{description}';
1.243 albertel 1949: delete($Apache::londefdef::DD[$Apache::londefdef::DL]);
1950: delete($Apache::londefdef::DT[$Apache::londefdef::DL]);
1.244 albertel 1951: delete($Apache::londefdef::seenDT[$Apache::londefdef::DL]);
1.243 albertel 1952: $Apache::londefdef::DL--;
1.122 albertel 1953: }
1954: return $currentstring;
1955: }
1956:
1.172 sakharuk 1957: #-- <dt> tag (end tag optional)
1.122 albertel 1958: sub start_dt {
1.172 sakharuk 1959: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1960: my $currentstring='';
1.325 albertel 1961: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1962: $currentstring = $token->[4];
1963: } elsif ($target eq 'tex') {
1.243 albertel 1964: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1965: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
1.174 sakharuk 1966: &Apache::lonxml::startredirection();
1.243 albertel 1967: $Apache::londefdef::DT[-1]++;
1.244 albertel 1968: $Apache::londefdef::seenDT[-1]=1;
1.122 albertel 1969: }
1970: return $currentstring;
1971: }
1972:
1973: sub end_dt {
1.172 sakharuk 1974: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1975: my $currentstring = '';
1.325 albertel 1976: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1977: $currentstring = $token->[2];
1978: } elsif ($target eq 'tex') {
1.243 albertel 1979: if ($Apache::londefdef::DT[-1]) {
1980: my $data=&item_cleanup();
1.244 albertel 1981: push(@{$Apache::londefdef::description[-1]},'\item['.$data.'] \strut \vskip 0mm');
1.243 albertel 1982: $Apache::londefdef::DT[-1]--;
1983: }
1.122 albertel 1984: }
1985: return $currentstring;
1986: }
1987:
1.173 sakharuk 1988: sub item_cleanup {
1.174 sakharuk 1989: my $item=&Apache::lonxml::endredirection();
1.173 sakharuk 1990: $item=~s/\\begin{center}//g;
1991: $item=~s/\\end{center}//g;
1992: return $item;
1993: }
1994:
1.181 sakharuk 1995: #-- <dd> tag (end tag optional)
1.122 albertel 1996: sub start_dd {
1.147 sakharuk 1997: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1998: my $currentstring = '';
1.325 albertel 1999: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2000: $currentstring = $token->[4];
1.147 sakharuk 2001: } elsif ($target eq 'tex') {
1.243 albertel 2002: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
2003: if ($Apache::londefdef::DD[-1]) { &end_dd(@_);}
1.244 albertel 2004: if (!$Apache::londefdef::seenDT[-1]) {
2005: push(@{$Apache::londefdef::description[-1]},'\item[\strut] \strut \vskip 0mm ');
2006: }
1.243 albertel 2007: push(@{$Apache::londefdef::description[-1]},'');
2008: $Apache::londefdef::description[-1]->[-1].=' \strut ';
2009: $Apache::londefdef::DD[-1]++;
1.174 sakharuk 2010: &Apache::lonxml::startredirection();
1.122 albertel 2011: }
2012: return $currentstring;
2013: }
2014:
2015: sub end_dd {
1.174 sakharuk 2016: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 2017: my $currentstring = '';
1.325 albertel 2018: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2019: $currentstring = $token->[2];
1.174 sakharuk 2020: } elsif ($target eq 'tex') {
1.243 albertel 2021: $Apache::londefdef::description[-1]->[-1].=
2022: &Apache::lonxml::endredirection().' \vskip 0mm ';
2023: $Apache::londefdef::DD[-1]--;
1.174 sakharuk 2024: }
1.122 albertel 2025: return $currentstring;
2026: }
2027:
1.181 sakharuk 2028: #-- <table> tag (end tag required)
1.277 foxr 2029: # <table> also ends any prior <p> that is not closed.
2030: # but, unless I allow <p>'s to nest, that's the
2031: # only way I could think of to allow <p> in
2032: # <tr> <th> bodies
2033: #
1.206 sakharuk 2034: #list of supported attributes: border,width,TeXwidth
1.91 sakharuk 2035: sub start_table {
2036: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 foxr 2037: my $textwidth = '';
1.279 foxr 2038: my $currentstring = &end_p();
1.325 albertel 2039: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 2040: $currentstring .= $token->[4];
1.91 sakharuk 2041: } elsif ($target eq 'tex') {
1.396 foxr 2042: &disable_para(); # Can't have paras in a table.
1.344 albertel 2043: push(@Apache::londefdef::table, {});
1.91 sakharuk 2044: $Apache::londefdef::table[-1]{'row_number'} = -1;
1.222 sakharuk 2045: #maximum table's width (default coincides with text line length)
1.206 sakharuk 2046: if ($#Apache::londefdef::table==0) {
1.267 albertel 2047: $textwidth=&recalc($env{'form.textwidth'}); #result is always in mm
1.206 sakharuk 2048: $textwidth=~/(\d+\.?\d*)/;
1.358 foxr 2049: $textwidth=0.85*$1; #accounts "internal" LaTeX space for table frame
1.206 sakharuk 2050: } else {
2051: if ($Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}]=~/\d/) {
2052: #the maximum width of nested table is determined by LATeX width of parent cell
2053: $textwidth=$Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}];
2054: } else {
2055: #try to use all space not used before (minus 5% for LaTeX table internal) - rather silly
1.228 sakharuk 2056: $textwidth=$Apache::londefdef::table[-2]{'width'};
1.206 sakharuk 2057: for (my $i=0;$i<$Apache::londefdef::table[-2]{'counter_columns'};$i++) {
2058: $textwidth=$textwidth-$Apache::londefdef::table[-2]{'TeXlen'}[0][$i];
2059: }
2060: }
2061: }
1.294 foxr 2062:
2063: # width either comes forced from the TeXwidth or the width parameters.
2064: # in either case it can be a percentage or absolute width.
1.311 albertel 2065: # in the width case we ignore absolute width
1.126 sakharuk 2066: my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1.308 albertel 2067: if (!defined($TeXwidth)) {
1.311 albertel 2068: my $htmlwidth = &Apache::lonxml::get_param('width',$parstack,
2069: $safeeval,undef,1);
2070: if ($htmlwidth =~ /%/) {
2071: $TeXwidth = $htmlwidth;
2072: } else {
2073: $TeXwidth = $textwidth;
2074: }
1.364 foxr 2075: }
2076: # if the width is specified as a % it is converted to an absolute width.
2077: # otherwise.. just plugged right in the hash
2078:
1.294 foxr 2079: if ($TeXwidth=~/%/) {
1.126 sakharuk 2080: $TeXwidth=~/(\d+)/;
1.206 sakharuk 2081: $Apache::londefdef::table[-1]{'width'}=$1*$textwidth/100;
1.126 sakharuk 2082: } else {
1.206 sakharuk 2083: $Apache::londefdef::table[-1]{'width'}=$TeXwidth;
1.316 foxr 2084: }
2085: # In the end, however the table width cannot be wider than $textwidth...
2086:
2087: if ($Apache::londefdef::table[-1]{'width'} > $textwidth) {
2088: $Apache::londefdef::table[-1]{'width'} = $textwidth;
2089: }
1.126 sakharuk 2090: #table's border
1.206 sakharuk 2091: my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval);
1.208 sakharuk 2092: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
1.91 sakharuk 2093: unless (defined $border) { $border = 0; }
2094: if ($border) {
2095: $Apache::londefdef::table[-1]{'hinc'} = '\hline ';
2096: $Apache::londefdef::table[-1]{'vinc'} = '&';
2097: $Apache::londefdef::table[-1]{'vvinc'} = '|';
2098: } else {
2099: $Apache::londefdef::table[-1]{'hinc'} = '';
2100: $Apache::londefdef::table[-1]{'vinc'} = '&';
2101: $Apache::londefdef::table[-1]{'vvinc'} = '';
2102: }
1.206 sakharuk 2103: if ($#Apache::londefdef::table==0) {
1.281 foxr 2104: # Note that \newline seems to destroy the alignment envs.
2105: # $Apache::londefdef::table[-1]{'output'}='\strut\newline\strut\setlength{\tabcolsep}{1 mm}';
2106: $Apache::londefdef::table[-1]{'output'}='\strut'.'\\\\'."\n".'\strut\setlength{\tabcolsep}{1 mm}';
1.206 sakharuk 2107: }
2108: $Apache::londefdef::table[-1]{'output'}.=' \noindent \begin{tabular} ';
2109: $Apache::londefdef::table[-1]{'TeXlen'}=[];
2110: $Apache::londefdef::table[-1]{'objectlen'}=[];
1.229 sakharuk 2111: $Apache::londefdef::table[-1]{'objectsignal'}=[];
1.206 sakharuk 2112: $Apache::londefdef::table[-1]{'maxlen'}=[];
2113: $Apache::londefdef::table[-1]{'minlen'}=[];
2114: $Apache::londefdef::table[-1]{'content'}=[];
2115: $Apache::londefdef::table[-1]{'align'}=[];
1.340 foxr 2116: $currentstring.=' \keephidden{NEW TABLE ENTRY}';
1.295 foxr 2117:
1.294 foxr 2118:
2119: }
1.91 sakharuk 2120: return $currentstring;
2121: }
1.122 albertel 2122:
2123: sub end_table {
2124: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2125: my $currentstring = '';
1.325 albertel 2126: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2127: $currentstring = $token->[2];
2128: } elsif ($target eq 'tex') {
1.372 foxr 2129: my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval);
1.122 albertel 2130: my $inmemory = '';
2131: my $output = '';
1.206 sakharuk 2132: my $WARNING='';
2133: #width of columns from TeXwidth attributes
1.294 foxr 2134:
1.384 foxr 2135: # Protect against unbalanced </table> tag.
2136:
2137: if (scalar(@Apache::londefdef::table) > 0) {
2138:
1.206 sakharuk 2139: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2140: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2141: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]<$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn]) {
2142: $Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]=$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn];
2143: }
2144: }
2145: }
2146: #free space and number of empty columns
2147: my ($available_space,$empty_columns)=($Apache::londefdef::table[-1]{'width'},0);
1.228 sakharuk 2148: if ($#Apache::londefdef::table ne 0) {$available_space=0.9*$available_space;}
1.206 sakharuk 2149: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2150: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]==0) {
2151: $empty_columns++;
2152: } else {
2153: $available_space=$available_space-$Apache::londefdef::table[-1]{'TeXlen'}[0][$jn];
2154: }
2155: }
1.358 foxr 2156:
1.206 sakharuk 2157: #boundaries for contents columns
2158: my @min_len=();#columns can not be narrower
2159: my @max_len=();#maximum length of column
1.357 foxr 2160: my $avg_max;
2161: my $avg_min;
2162: my $counter_cols = $Apache::londefdef::table[-1]{'counter_columns'};
2163: for (my $jn=0;$jn<=$counter_cols; $jn++) {
1.206 sakharuk 2164: my ($localmin,$localmax)=(0,0);
2165: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2166: if ($localmin<$Apache::londefdef::table[-1]{'minlen'}[$in][$jn]) {
2167: $localmin=$Apache::londefdef::table[-1]{'minlen'}[$in][$jn];
2168: }
2169: if ($localmax<$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn]) {
2170: $localmax=$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn];
2171: }
2172: }
2173: push @min_len, $localmin;
2174: push @max_len, $localmax;
1.357 foxr 2175: $avg_max = $localmax + $avg_max;
2176: $avg_min = $localmin + $avg_min;
2177: }
2178: # Does not really matter what the average max/min are if there are no cols.
2179: # and this prevents div 0 in that case.
2180:
2181: if ($counter_cols != 0) {
2182: $avg_max = $avg_max/$counter_cols;
2183: $avg_min = $avg_min/$counter_cols;
2184: }
2185:
2186:
2187: # I don't think the below is needed.. but just in case:
2188:
2189: if ($avg_min > $avg_max) {
2190: my $temp = $avg_min;
2191: $avg_min = $avg_max;
2192: $avg_max = $temp;
1.122 albertel 2193: }
1.357 foxr 2194:
2195:
2196: for (my $jn=0;$jn<=$counter_cols;$jn++) {
1.206 sakharuk 2197: my $localmin=0,;
2198: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2199: if ($localmin<$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn]) {
2200: $localmin=$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn];
2201: }
2202: }
1.229 sakharuk 2203: if ($max_len[$jn]<$localmin) {
2204: $max_len[$jn]=$localmin;
2205: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
2206: }#object size is bigger
2207: if ($min_len[$jn]<$localmin) {
2208: $min_len[$jn]=$localmin;
2209: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
2210: }#object size is bigger
1.206 sakharuk 2211: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]!=0) {
2212: $min_len[$jn]=0;
2213: $max_len[$jn]=0;
2214: }
1.357 foxr 2215: # Spans seem to be really bothered by max/min = 0. So if we have one
2216: # make it an average joe max/min.
2217:
2218: if ($max_len[$jn] == 0) {
2219: $max_len[$jn] = $avg_max;
2220: }
2221: if ($min_len[$jn] == 0) {
2222: $min_len[$jn] = $avg_min;
2223: }
2224:
1.206 sakharuk 2225: }
2226: #final adjustment of column width
2227: my @fwidth=@{$Apache::londefdef::table[-1]{'TeXlen'}[0]};#final width array
2228: my @adjust=();
2229: #step 1. adjustment by maximum value
1.370 albertel 2230: my $space_needed=0;
1.206 sakharuk 2231: for (my $jn=0;$jn<=$#max_len;$jn++) {
1.370 albertel 2232: $space_needed=$space_needed+$max_len[$jn];
1.206 sakharuk 2233: }
1.370 albertel 2234: if ($space_needed<=$available_space) {
1.362 foxr 2235:
1.206 sakharuk 2236: for (my $jn=0;$jn<=$#max_len;$jn++) {
2237: if ($fwidth[$jn]==0) {
2238: $fwidth[$jn]=$max_len[$jn];
1.53 sakharuk 2239: }
1.51 sakharuk 2240: }
1.206 sakharuk 2241: } else {
2242: #step 2. adjustment by minimum value (estimation)
1.370 albertel 2243: $space_needed=0;
1.206 sakharuk 2244: for (my $jn=0;$jn<=$#min_len;$jn++) {
1.370 albertel 2245: $space_needed+=$min_len[$jn];
1.206 sakharuk 2246: }
1.370 albertel 2247: if ($space_needed>$available_space) {
1.206 sakharuk 2248: $WARNING=' \textbf{NOT ENOUGH SPACE FOR TABLE} ';
2249: for (my $jn=0;$jn<=$#max_len;$jn++) {
2250: if ($fwidth[$jn]==0) {
2251: $fwidth[$jn]=$min_len[$jn];
2252: }
2253: }
1.229 sakharuk 2254: #check if we have objects which can be scaled
2255: my $how_many_to_scale=0;
2256: my @to_scale=();
2257: for (my $jn=0;$jn<=$#max_len;$jn++) {
2258: if ($Apache::londefdef::table[-1]{'objectsignal'}[$jn] eq '1') {
2259: $how_many_to_scale++;
2260: push @to_scale, $jn;
2261: }
2262: }
2263: if ($how_many_to_scale>0) {
1.370 albertel 2264: my $space_to_adjust=($space_needed-$available_space)/$how_many_to_scale;
1.229 sakharuk 2265: foreach my $jn (@to_scale) {
2266: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2267: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/;
2268: if ($1 ne '') {
2269: my $current_length=&recalc($1);
2270: $current_length=~/(\d+\.?\d*)/;
2271: $current_length=$current_length-$space_to_adjust;
2272: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/width=$current_length mm/;
2273: }
2274: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/\[(\d+\.?\d*)\s*mm\]/;
2275: if ($1 ne '') {
2276: my $current_length=$1;
2277: $current_length=$current_length-$space_to_adjust;
2278: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/\[(\d+\.?\d*)\s*mm\]/\[$current_length mm\]/;
2279: }
2280: }
2281: $fwidth[$jn]=$fwidth[$jn]-$space_to_adjust;
2282: }
2283: }
1.206 sakharuk 2284: } else {
2285: #step 3. adjustment over minimal + corrections
1.370 albertel 2286: my $enlarge_coef=$available_space/$space_needed;
1.206 sakharuk 2287: my $acsessive=0;
2288: for (my $jn=0;$jn<=$#min_len;$jn++) {
2289: $adjust[$jn]=$min_len[$jn]*$enlarge_coef;
2290: if ($adjust[$jn]>$max_len[$jn]) {
2291: $fwidth[$jn]=$max_len[$jn];
2292: $acsessive=$acsessive+$adjust[$jn]-$max_len[$jn];
2293: $adjust[$jn]=0;
1.357 foxr 2294:
1.206 sakharuk 2295: }
2296: }
2297: if ($acsessive>0) {
2298: #we have an excess of space and can redistribute it
2299: my $notempty_columns=0;
2300: for (my $jn=0;$jn<=$#min_len;$jn++) {
2301: if ($adjust[$jn]!=0) {
2302: $notempty_columns++;
2303: }
2304: }
2305: my $per_column=$acsessive/$notempty_columns;
2306: for (my $jn=0;$jn<=$#min_len;$jn++) {
2307: if ($adjust[$jn]!=0) {
2308: $adjust[$jn]+=$per_column;
2309: $fwidth[$jn]=$adjust[$jn];
2310: }
1.223 sakharuk 2311: }
2312: } else {
2313: for (my $jn=0;$jn<=$#min_len;$jn++) {
2314: $fwidth[$jn]=$adjust[$jn];
1.206 sakharuk 2315: }
2316: }
1.203 sakharuk 2317: }
2318: }
1.364 foxr 2319: # use all available width or specified width as if not specified,
2320: # the specified width gets defaulted to the available width.
2321:
2322: my $current=0;
2323: for (my $i=0;$i<=$#fwidth;$i++) {
2324: $current+=$fwidth[$i];
2325: }
1.371 albertel 2326: if ($current == 0) {
2327: $current = $Apache::londefdef::table[-1]{'width'};
2328: }
1.364 foxr 2329: my $coef=$Apache::londefdef::table[-1]{'width'}/$current;
2330: for (my $i=0;$i<=$#fwidth;$i++) {
2331: $fwidth[$i]*=$coef;
1.206 sakharuk 2332: }
2333: #removing of empty columns if allowed
1.208 sakharuk 2334: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
1.206 sakharuk 2335: if ($permission eq 'yes') {
2336: my @cleaned_table=();
2337: my @cleaned_header=();
2338: my $colind=0;
2339: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2340: if ($fwidth[$jn]!=0) {
2341: #we need to copy column
2342: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2343: $cleaned_table[$in][$colind]=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
2344: $cleaned_header[$colind]=$fwidth[$jn];
2345: }
2346: $colind++;
2347: }
1.122 albertel 2348: }
1.206 sakharuk 2349: $Apache::londefdef::table[-1]{'content'}=\@cleaned_table;
2350: @fwidth=@cleaned_header;
1.122 albertel 2351: }
1.359 foxr 2352:
1.358 foxr 2353:
1.206 sakharuk 2354: #construct header of the table
2355: my $header_of_table = '{'.$Apache::londefdef::table[-1]{'vvinc'};
2356: for (my $in=0;$in<=$#fwidth;$in++) {
2357: $header_of_table.='p{'.$fwidth[$in].' mm}'.$Apache::londefdef::table[-1]{'vvinc'};
2358: }
2359: $header_of_table .= '}';
1.357 foxr 2360:
1.126 sakharuk 2361: #fill the table
2362: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1.306 foxr 2363: my $have_rowspan = 0;
1.206 sakharuk 2364: for (my $jn=0;$jn<=$#fwidth;$jn++) {
1.320 foxr 2365:
2366: #-----------------------------------------------------------
2367: # I think this order of doing things will ensure that
2368: # single rowspan, columspan and combined row/colspans will
2369: # work correctly. LaTeX is delicate here.
2370: # RF.
1.356 foxr 2371:
1.320 foxr 2372: # Start a rowspan if necessary:
1.356 foxr 2373:
2374: my $primary_col_width = $fwidth[$jn]; # Width of primary column.
1.320 foxr 2375: my $rowspan = $Apache::londefdef::table[-1]{'rowspan'}[$in][$jn];
2376: my $colspan = $Apache::londefdef::table[-1]{'colspan'}[$in][$jn];
1.304 foxr 2377: #
2378: # Do the appropriate magic if this has a colspan
2379: #
1.356 foxr 2380:
1.372 foxr 2381: my $border_char = "";
2382: if ($border) {
2383: $border_char = "|";
2384: }
1.356 foxr 2385: my $spanwidth = 0;
1.304 foxr 2386: if ($colspan > 1) {
1.336 foxr 2387: for (my $spancol = $jn; $spancol < $jn + $colspan; $spancol++) {
2388: $spanwidth += $fwidth[$spancol];
2389: }
1.304 foxr 2390: $output .= '\multicolumn{'.
2391: $colspan
1.337 foxr 2392: ."}";
2393: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
1.372 foxr 2394: $output .= '{'.$border_char.'c'.$border_char.'}{';
1.337 foxr 2395: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
1.372 foxr 2396: $output .= '{'.$border_char.'r'.$border_char.'}{';
1.337 foxr 2397: }
2398: else {
1.372 foxr 2399: $output .= '{'.$border_char."p{$spanwidth mm}".$border_char.'}{';
1.337 foxr 2400: }
1.356 foxr 2401:
2402: } else {
2403: $spanwidth = $primary_col_width; # If no span width will be just colwidth
1.304 foxr 2404: }
1.306 foxr 2405:
1.337 foxr 2406: # Rowspan... if colspan is 1, and there's an alignment we'll need
2407: # to kick in a multicolumn in order to get the alignment spec.
2408: # this must precede the multirow or LaTex gets quite upset.
2409: # Naturally if colspan > 1 we've already done that above ^
2410: #
2411: my $multirow_aligned = 0;
1.306 foxr 2412: if ($rowspan > 1) {
1.337 foxr 2413: if ($colspan == 1) {
2414: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
1.372 foxr 2415: $output .= '\multicolumn{1}{'.$border_char.'c'.$border_char.'}{';
1.337 foxr 2416: $multirow_aligned = 1;
2417: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
1.372 foxr 2418: $output .= '\multicolumn{1}{'.$border_char.'r'.$border_char.'}{';
1.337 foxr 2419: $multirow_aligned = 1;
2420: }
2421: }
1.306 foxr 2422: $have_rowspan++;
1.356 foxr 2423: if ($multirow_aligned) {
2424: $output .= '\multirow{'.$rowspan.'}[0]{*}{';
2425: } else {
2426: $output .= '\multirow{'.$rowspan."}[0]{$spanwidth mm}{";
2427: }
1.350 albertel 2428:
2429: $Apache::londefdef::table[-1]{'content'}[$in][$jn] =~
2430: s{^\s*\\par\s*}{};
2431: $Apache::londefdef::table[-1]{'content'}[$in][$jn] =~
2432: s{\s*\\vskip\s*0pt\s*$}{};
1.356 foxr 2433:
1.337 foxr 2434: #
2435: # If we did not throw in a multicolumn to align, then add
2436: # an extra {
2437: # so we close correctly without having to keep additional state
2438: # around
2439: #
2440: if (!$multirow_aligned) {
2441: $output .= '{';
2442: }
1.306 foxr 2443: }
2444: if (($rowspan eq '^') || ($rowspan eq '_')) {
2445: $have_rowspan++;
2446: }
1.356 foxr 2447: #--------------------------------------------------------------
1.306 foxr 2448:
1.337 foxr 2449:
2450: # For right and center alignment of single cells.
2451: # we are going to use a multicolumn with a span of 1 to specify alignment.
2452: #
2453: if ($colspan == 1 && $rowspan == 1) {
2454: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
1.372 foxr 2455: $output .= '\multicolumn{1}{'.$border_char.'c'.$border_char.'}{';
1.337 foxr 2456: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
1.372 foxr 2457: $output .= '\multicolumn{1}{'.$border_char.'r'.$border_char.'}{';
1.337 foxr 2458: }
1.206 sakharuk 2459: }
1.337 foxr 2460:
1.206 sakharuk 2461: $output.=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
1.337 foxr 2462:
2463: if (($colspan == 1 && $rowspan == 1) &&
2464: (($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') ||
2465: ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r'))) {
2466: $output .= '}';
1.206 sakharuk 2467: }
1.337 foxr 2468:
1.306 foxr 2469: # Close off any open multirow:
2470:
2471: if ($rowspan > 1) {
1.337 foxr 2472: $output .= '}}';
1.306 foxr 2473: }
1.304 foxr 2474: # Close off the colspan...
2475: #
2476: if ($colspan > 1) {
2477: $output .= '}';
2478: $jn += $colspan-1; # Adjust for number of rows really left.
2479: }
1.206 sakharuk 2480: if ($jn!=$#fwidth) {$output.=' '.$Apache::londefdef::table[-1]{'vinc'};}
2481: }
1.306 foxr 2482: # If have_rowspan > 0, and borders are on, then
2483: # we need to do more than put an \hline at the bottom of row.
2484: # we need to do the appropriate \cline to ensure that
2485: # the spanned rows don't have \hlines through them.
2486:
2487: if (($Apache::londefdef::table[-1]{'hinc'} =~ /\\hline/) && $have_rowspan) {
2488: $output .= ' \\\\ ';
2489: for (my $jn=0; $jn<=$#fwidth;$jn++) {
2490: my $rowspan = $Apache::londefdef::table[-1]{'rowspan'}[$in][$jn];
1.320 foxr 2491: if ($rowspan ne "^") {
2492: if (($rowspan <= 1) || ($rowspan eq '_')) {
2493: my $column = $jn+1;
2494: $output .= '\cline{'.$column.'-'.$column.'} ';
2495: }
1.306 foxr 2496: }
2497: }
2498:
2499: } else {
2500: $output.=' \\\\ '.$Apache::londefdef::table[-1]{'hinc'}.' ';
2501: }
1.122 albertel 2502: }
1.281 foxr 2503: # Note that \newline destroys alignment env's produced by e.g. <div>
2504: # $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut\newline\strut ';
2505: $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut'.'\\\\'."\n".'\strut ';
1.127 sakharuk 2506: if ($#Apache::londefdef::table > 0) {
2507: my $inmemory = $Apache::londefdef::table[-1]{'output'};
1.294 foxr 2508: # Figure out max/and min width by summing us and then
2509: # apply that to the current column of the table we nest in
2510: # if it's larger than the current width or the current width
2511: # is undefined.
2512: #
2513: my $min_nested_width = 0;
2514: my $max_nested_width = 0;
2515: for (my $col = 0; $col <= $Apache::londefdef::table[-1]{'counter_columns'}; $col++) {
2516: $min_nested_width += $min_len[$col];
2517: $max_nested_width += $max_len[$col];
1.300 foxr 2518:
1.294 foxr 2519: }
2520: # Fudge in an extra 5 mm for borders etc:
2521:
2522: $min_nested_width += 5;
2523: $max_nested_width += 5;
2524:
2525: my $outer_column = $Apache::londefdef::table[-2]{'counter_columns'};
2526: my $outer_row = $Apache::londefdef::table[-2]{'row_number'};
2527: if ($min_nested_width > $Apache::londefdef::table[-2]{'minlen'}[$outer_row][$outer_column]) {
2528: $Apache::londefdef::table[-2]{'minlen'}[$outer_row][$outer_column] = $min_nested_width;
2529: }
2530: if ($max_nested_width > $Apache::londefdef::table[-2]{'maxlen'}[$outer_row][$outer_column]) {
2531: $Apache::londefdef::table[-2]{'maxlen'}[$outer_row][$outer_column] = $max_nested_width;
2532: }
2533:
1.127 sakharuk 2534: pop @Apache::londefdef::table;
1.129 sakharuk 2535: push @{$Apache::londefdef::table[-1]{'include'}}, $inmemory;
1.127 sakharuk 2536: } else {
2537: $currentstring .= $Apache::londefdef::table[-1]{'output'};
2538: pop @Apache::londefdef::table;
1.143 sakharuk 2539: undef @Apache::londefdef::table;
1.127 sakharuk 2540: }
1.396 foxr 2541: }
2542: &enable_para();
1.384 foxr 2543: }
1.122 albertel 2544: return $currentstring;
2545: }
2546:
1.166 sakharuk 2547: #-- <tr> tag (end tag optional)
1.122 albertel 2548: sub start_tr {
2549: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2550: my $currentstring = '';
1.325 albertel 2551: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2552: $currentstring = $token->[4];
2553: } elsif ($target eq 'tex') {
2554: $Apache::londefdef::table[-1]{'row_number'}++;
1.206 sakharuk 2555: my $alignchar=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.122 albertel 2556: if ($alignchar ne '') {
1.206 sakharuk 2557: push @ {$Apache::londefdef::table[-1]{'rows'} },substr($alignchar,0,1);
1.122 albertel 2558: } else {
2559: push @ {$Apache::londefdef::table[-1]{'rows'} }, 'l';
2560: }
2561: push ( @{ $Apache::londefdef::table[-1]{'rowdata'} }, $Apache::londefdef::table[-1]{'hinc'});
1.300 foxr 2562: #
2563: # Need to save the number of table columns to preserve the max # columns.
2564: #
2565: $Apache::londefdef::table[-1]{'prior_columns'} = $Apache::londefdef::table[-1]{'counter_columns'};
1.122 albertel 2566: $Apache::londefdef::table[-1]{'counter_columns'} = -1;
1.206 sakharuk 2567: push @ {$Apache::londefdef::table[-1]{'TeXlen'}}, [];
2568: push @ {$Apache::londefdef::table[-1]{'objectlen'}}, [];
2569: push @ {$Apache::londefdef::table[-1]{'minlen'}}, [];
2570: push @ {$Apache::londefdef::table[-1]{'maxlen'}}, [];
2571: push @ {$Apache::londefdef::table[-1]{'content'}}, [];
1.122 albertel 2572: }
2573: return $currentstring;
2574: }
2575:
2576: sub end_tr {
1.160 sakharuk 2577: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 2578: my $currentstring = &end_p(); # Close any pending <p> in the row.
1.325 albertel 2579: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 2580: $currentstring .= $token->[2];
1.122 albertel 2581: } elsif ($target eq 'tex') {
1.160 sakharuk 2582: if ($Apache::londefdef::TD_redirection) {
2583: &end_td_tex($parstack,$parser,$safeeval);
2584: }
1.300 foxr 2585: # Counter columns must be the maximum number of columns seen
2586: # in the table so far so:
2587: if ($Apache::londefdef::table[-1]{'prior_columns'} > $Apache::londefdef::table[-1]{'counter_columns'}) {
2588: $Apache::londefdef::table[-1]{'counter_columns'} = $Apache::londefdef::table[-1]{'prior_columns'};
2589: }
1.295 foxr 2590:
2591:
1.294 foxr 2592:
1.122 albertel 2593: }
2594: return $currentstring;
2595: }
2596:
1.166 sakharuk 2597: #-- <td> tag (end tag optional)
1.122 albertel 2598: sub start_td {
2599: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2600: my $currentstring = '';
1.325 albertel 2601: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2602: $currentstring = $token->[4];
2603: } elsif ($target eq 'tex') {
1.160 sakharuk 2604: $Apache::londefdef::TD_redirection = 1;
1.159 sakharuk 2605: &tag_check('tr','td',$tagstack,$parstack,$parser,$safeeval);
1.122 albertel 2606: }
2607: return $currentstring;
2608: }
1.159 sakharuk 2609:
2610: sub tag_check {
2611: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
1.160 sakharuk 2612: my @ar=@$parstack;
2613: for (my $i=$#ar-1;$i>=0;$i--) {
2614: if (lc($$tagstack[$i]) eq $good_tag) {
2615: &start_td_tex($parstack,$parser,$safeeval);
2616: last;
2617: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2618: splice @ar, $i+1;
2619: &end_td_tex(\@ar,$parser,$safeeval);
2620: &start_td_tex($parstack,$parser,$safeeval);
2621: last;
1.159 sakharuk 2622: }
1.160 sakharuk 2623: }
1.159 sakharuk 2624: return '';
2625: }
2626:
2627: sub start_td_tex {
2628: my ($parstack,$parser,$safeeval) = @_;
1.206 sakharuk 2629: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2630: if ($alignchar eq '') {
2631: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
1.159 sakharuk 2632: }
1.206 sakharuk 2633: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
1.159 sakharuk 2634: $Apache::londefdef::table[-1]{'counter_columns'}++;
1.206 sakharuk 2635: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2636: if (defined $TeXwidth) {
2637: my $current_length=&recalc($TeXwidth);
2638: $current_length=~/(\d+\.?\d*)/;
2639: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2640: }
1.159 sakharuk 2641: &Apache::lonxml::startredirection();
2642: return '';
2643: }
2644:
2645: sub end_td_tex {
2646: my ($parstack,$parser,$safeeval) = @_;
1.304 foxr 2647: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2648: my $current_column = $Apache::londefdef::table[-1]{'counter_columns'};
1.303 foxr 2649: my $data = &Apache::lonxml::endredirection();
2650:
1.305 foxr 2651: # The rowspan array of the table indicates which cells are part of a span.
2652: # n indicates the start of a span set of n rows.
2653: # ^ indicates a cell that continues a span set.
1.306 foxr 2654: # _ indicates the cell is at the bottom of a span set.
1.305 foxr 2655: # If this and subsequent cells are part of a rowspan, we must
2656: # push along the row until we find one that is not.
2657:
2658: while ((defined $Apache::londefdef::table[-1]{'rowspan'}[$current_row] [$current_column])
1.306 foxr 2659: && ($Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column] =~ /[\^\_]/)) {
1.305 foxr 2660: # Part of a span.
2661: push @ {$Apache::londefdef::table[-1]{'content'}[-1]}, '';
2662: $current_column++;
2663: }
2664: $Apache::londefdef::table[-1]{'counter_columns'} = $current_column;
2665:
2666:
1.320 foxr 2667: # Get the column and row spans.
2668: # Colspan can be done via \multicolumn if I can figure out the data structs.
2669:
2670: my $colspan = &Apache::lonxml::get_param('colspan', $parstack, $safeeval, undef, 0);
2671: if (!$colspan) {
2672: $colspan = 1;
2673: }
1.305 foxr 2674:
2675: my $rowspan = &Apache::lonxml::get_param('rowspan', $parstack, $safeeval, undef, 0);
2676: if (!$rowspan) {
2677: $rowspan = 1;
2678: }
2679:
1.303 foxr 2680:
1.305 foxr 2681:
1.320 foxr 2682: for (my $c = 0; $c < $colspan; $c++) {
2683: $Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column+$c] = $rowspan;
2684: for (my $i = 1; $i < $rowspan; $i++) {
2685: $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column+$c] = '^';
2686: if ($i == ($rowspan-1)) {
2687: $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column+$c] = '_';
2688: }
1.306 foxr 2689: }
1.305 foxr 2690: }
1.304 foxr 2691:
1.159 sakharuk 2692: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2693: if (defined $TeXwidth) {
1.357 foxr 2694: for (my $c = 0; $c < $colspan; $c++) {
2695: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2696: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2697: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2698: }
1.159 sakharuk 2699: } else {
1.206 sakharuk 2700: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2701: my $garbage_data=$data;
2702: my $fwidth=0;
2703: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2704: my $current_length=&recalc($1);
2705: $current_length=~/(\d+\.?\d*)/;
2706: if ($fwidth<$1) {$fwidth=$1;}
2707: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2708: }
2709: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2710: my $current_length=$1;
2711: if ($fwidth<$current_length) {$fwidth=$current_length;}
2712: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2713: }
1.357 foxr 2714: for (my $c = 0; $c < $colspan; $c++) {
2715: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2716: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2717: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2718: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2719: }
1.231 sakharuk 2720: } 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)*/) {
2721: my $garbage_data=$data;
2722: my $fwidth=0;
2723: while ($garbage_data=~/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)\s*\}/) {
2724: my $current_length=&recalc($1);
2725: $current_length=~/(\d+\.?\d*)/;
2726: if ($fwidth<$1) {$fwidth=$1;}
2727: $garbage_data=~s/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2728: }
2729: while ($garbage_data=~/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2730: my $current_length=&recalc($1);
2731: $current_length=~/(\d+\.?\d*)/;
2732: if ($fwidth<$1) {$fwidth=$1;}
2733: $garbage_data=~s/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2734: }
1.357 foxr 2735: for (my $c = 0; $c < $colspan; $c++) {
2736: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2737: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2738: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2739: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2740: }
1.231 sakharuk 2741: $data=~s/\\\\\s*$//;
1.159 sakharuk 2742: } else {
1.166 sakharuk 2743: $data=~s/^\s+(\S.*)/$1/;
1.159 sakharuk 2744: $data=~s/(.*\S)\s+$/$1/;
1.166 sakharuk 2745: $data=~s/(\s)+/$1/;
1.206 sakharuk 2746: my ($current_length,$min_length)=(0,0);
1.166 sakharuk 2747: if ($data=~/\\vskip/) {
2748: my $newdata=$data;
2749: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2750: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2751: foreach my $elementdata (@newdata) {
1.206 sakharuk 2752: my $lengthnewdata=2.5*&LATEX_length($elementdata);
1.166 sakharuk 2753: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
1.206 sakharuk 2754: my @words=split(/ /,$elementdata);
2755: foreach my $word (@words) {
2756: my $lengthword=2.5*&LATEX_length($word);
2757: if ($min_length<$lengthword) {$min_length=$lengthword;}
2758: }
1.166 sakharuk 2759: }
2760: } else {
1.206 sakharuk 2761: $current_length=2.5*&LATEX_length($data);
2762: my @words=split(/ /,$data);
2763: foreach my $word (@words) {
1.228 sakharuk 2764: my $lengthword=2*&LATEX_length($word);
1.206 sakharuk 2765: if ($min_length<$lengthword) {$min_length=$lengthword;}
2766: }
1.166 sakharuk 2767: }
1.357 foxr 2768: for (my $c = 0; $c < $colspan; $c++) {
2769: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2770: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2771: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2772: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
2773: }
1.159 sakharuk 2774: }
2775: }
1.302 foxr 2776: # Substitute all of the tables nested in this cell in their appropriate places.
2777:
2778:
2779: my $nested_count = $#{$Apache::londefdef::table[-1]{'include'}}; # This one is constant...
2780: for (my $in=0; $in<=$nested_count; $in++) {
1.301 foxr 2781: my $nested = shift @{$Apache::londefdef::table[-1]{'include'}};
2782: $nested =~ s/\\end\{tabular\}\\strut\\\\/\\end\{tabular\}/;
2783: # $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2784: $data =~ s/\\keephidden\{NEW TABLE ENTRY\}/$nested/;
2785:
2786: }
2787: # Should be be killing off the 'include' elements as they're used up?
1.305 foxr 2788:
1.206 sakharuk 2789: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
1.305 foxr 2790:
1.304 foxr 2791:
2792:
2793:
2794: # the colspan array will indicate how many columns will be spanned by this
2795: # cell..this requires that counter_columns also be adjusted accordingly
2796: # so that the next bunch of text goes in the right cell. Note that since
2797: # counter_columns is incremented in the start_td_tex, we adjust by colspan-1.
2798: #
2799:
2800: $Apache::londefdef::table[-1]{'counter_columns'} += $colspan -1;
2801: for (my $i = 0; $i < ($colspan -1); $i++) {
2802: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },'';
2803: }
1.320 foxr 2804: for (my $r = 0; $r < $rowspan; $r++) {
2805: $Apache::londefdef::table[-1]{'colspan'}[$current_row+$r][$current_column] = $colspan;
2806: # Put empty text in spanned cols.
2807:
2808: }
2809:
1.304 foxr 2810:
2811:
1.301 foxr 2812: return '';
1.159 sakharuk 2813: }
2814:
1.122 albertel 2815: sub end_td {
1.126 sakharuk 2816: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 2817: my $currentstring = '';
1.325 albertel 2818: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2819: $currentstring = $token->[2];
2820: } elsif ($target eq 'tex') {
1.160 sakharuk 2821: $Apache::londefdef::TD_redirection =0;
1.159 sakharuk 2822: &end_td_tex($parstack,$parser,$safeeval);
1.122 albertel 2823: }
2824: return $currentstring;
2825: }
2826:
1.166 sakharuk 2827: #-- <th> tag (end tag optional)
1.122 albertel 2828: sub start_th {
2829: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2830: my $currentstring = '';
1.325 albertel 2831: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2832: $currentstring = $token->[4];
2833: } elsif ($target eq 'tex') {
1.230 sakharuk 2834: $Apache::londefdef::TD_redirection = 1;
2835: &tagg_check('tr','th',$tagstack,$parstack,$parser,$safeeval);
1.122 albertel 2836: }
2837: return $currentstring;
1.130 sakharuk 2838: }
1.230 sakharuk 2839:
2840: sub tagg_check {
2841: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
2842: my @ar=@$parstack;
2843: for (my $i=$#ar-1;$i>=0;$i--) {
2844: if (lc($$tagstack[$i]) eq $good_tag) {
2845: &start_th_tex($parstack,$parser,$safeeval);
2846: last;
2847: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2848: splice @ar, $i+1;
2849: &end_th_tex(\@ar,$parser,$safeeval);
2850: &start_th_tex($parstack,$parser,$safeeval);
2851: last;
2852: }
2853: }
2854: return '';
2855: }
2856:
2857: sub start_th_tex {
2858: my ($parstack,$parser,$safeeval) = @_;
2859: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2860: if ($alignchar eq '') {
2861: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
2862: }
2863: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
2864: $Apache::londefdef::table[-1]{'counter_columns'}++;
2865: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2866: if (defined $TeXwidth) {
2867: my $current_length=&recalc($TeXwidth);
2868: $current_length=~/(\d+\.?\d*)/;
2869: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2870: }
2871: &Apache::lonxml::startredirection();
2872: return '';
2873: }
2874:
2875: sub end_th_tex {
2876: my ($parstack,$parser,$safeeval) = @_;
2877: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2878: my $data=&Apache::lonxml::endredirection();
2879: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2880: if (defined $TeXwidth) {
2881: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2882: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2883: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2884: } else {
2885: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2886: my $garbage_data=$data;
2887: my $fwidth=0;
2888: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2889: my $current_length=&recalc($1);
2890: $current_length=~/(\d+\.?\d*)/;
2891: if ($fwidth<$1) {$fwidth=$1;}
2892: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2893: }
2894: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2895: my $current_length=$1;
2896: if ($fwidth<$current_length) {$fwidth=$current_length;}
2897: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2898: }
2899: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2900: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2901: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2902: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2903: } else {
2904: $data=~s/^\s+(\S.*)/$1/;
2905: $data=~s/(.*\S)\s+$/$1/;
2906: $data=~s/(\s)+/$1/;
2907: my ($current_length,$min_length)=(0,0);
2908: if ($data=~/\\vskip/) {
2909: my $newdata=$data;
2910: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2911: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2912: foreach my $elementdata (@newdata) {
2913: my $lengthnewdata=2.5*&LATEX_length($elementdata);
2914: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
2915: my @words=split(/ /,$elementdata);
2916: foreach my $word (@words) {
2917: my $lengthword=2.5*&LATEX_length($word);
2918: if ($min_length<$lengthword) {$min_length=$lengthword;}
2919: }
2920: }
2921: } else {
2922: $current_length=2.5*&LATEX_length($data);
2923: my @words=split(/ /,$data);
2924: foreach my $word (@words) {
2925: my $lengthword=2*&LATEX_length($word);
2926: if ($min_length<$lengthword) {$min_length=$lengthword;}
2927: }
2928: }
2929: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2930: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2931: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2932: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
2933: }
2934: }
2935: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
2936: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2937: }
2938: #make data bold
2939: $data='\textbf{'.$data.'}';
2940: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
2941: return'';
2942: }
2943:
1.122 albertel 2944: sub end_th {
1.130 sakharuk 2945: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 2946: my $currentstring = &end_p(); # Close any open <p> in the row.
1.325 albertel 2947: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 2948: $currentstring .= $token->[2];
1.122 albertel 2949: } elsif ($target eq 'tex') {
1.230 sakharuk 2950: $Apache::londefdef::TD_redirection =0;
2951: &end_th_tex($parstack,$parser,$safeeval);
1.122 albertel 2952: }
2953: return $currentstring;
2954: }
1.230 sakharuk 2955:
1.181 sakharuk 2956: #-- <img> tag (end tag forbidden)
1.249 foxr 2957: #
2958: # Render the <IMG> tag.
2959: # <IMG> has the following attributes (in addition to the
2960: # standard HTML ones:
2961: # TeXwrap - Governs how the tex target will try to wrap text around
2962: # horizontally aligned images.
2963: # TeXwidth - The width of the image when rendered for print (mm).
2964: # TeXheight - The height of the image when rendered for print (mm)
2965: # (Note there seems to also be support for this as a % of page size)
2966: #
1.122 albertel 2967: sub start_img {
1.299 albertel 2968: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 2969: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,
2970: undef,1);
1.325 albertel 2971: if (! $src &&
2972: ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex')
2973: ) {
1.299 albertel 2974: my $inside = &Apache::lonxml::get_all_text("/img",$parser,$style);
1.189 albertel 2975: return '';
2976: }
1.290 albertel 2977: &Apache::lonxml::extlink($src);
1.122 albertel 2978: my $currentstring = '';
2979: my $scaling = .3;
1.249 foxr 2980:
2981: # Render unto browsers that which are the browser's...
2982:
1.325 albertel 2983: if ($target eq 'web' || $target eq 'webgrade') {
1.267 albertel 2984: if ($env{'browser.imagesuppress'} ne 'on') {
1.322 albertel 2985: my $enc = ('yes' eq
2986: lc(&Apache::lonxml::get_param('encrypturl',$parstack,
2987: $safeeval)));
2988: $currentstring.=&Apache::lonenc::encrypt_ref($token,{'src'=>$src},
2989: $enc);
1.122 albertel 2990: } else {
1.322 albertel 2991: my $alttag = &Apache::lonxml::get_param('alt',$parstack,$safeeval,
2992: undef,1);
2993: if (!$alttag) {
2994: $alttag = &Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2995: $src);
1.51 sakharuk 2996: }
1.158 sakharuk 2997: $currentstring.='[IMAGE: '.$alttag.']';
1.1 sakharuk 2998: }
1.249 foxr 2999:
3000: # and render unto TeX that which is LaTeX
3001:
1.122 albertel 3002: } elsif ($target eq 'tex') {
1.248 foxr 3003: #
3004: # The alignment will require some superstructure to be put around
3005: # the \includegraphics stuff. At present we can only partially
3006: # simulate the alignments offered by html.
3007: #
3008: #
3009: my $align = lc(&Apache::lonxml::get_param('align',
3010: $parstack,
3011: $safeeval,
3012: undef,1));
3013: if(!$align) {
1.287 foxr 3014: $align = "bottom"; # This is html's default so it's ours too.
1.248 foxr 3015: }
3016: #
3017: &Apache::lonxml::debug("Alignemnt = $align");
3018: # LaTeX's image/text wrapping is really bad since it wants to
3019: # make figures float.
3020: # The user has the optional parameter (applicable only to l/r
3021: # alignment to use the picins/parpic directive to get wrapped text
3022: # this is also imperfect.. that's why we give them a choice...
3023: # so they can't yell at us for our choice.
3024: #
3025: my $latex_rendering = &Apache::lonxml::get_param('TeXwrap',
3026: $parstack,
3027: $safeeval,
3028: undef,0);
1.312 foxr 3029: # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering");
1.248 foxr 3030: if(!$latex_rendering) {
1.312 foxr 3031: $latex_rendering = "texwrap";
3032: }
3033: # using texwrap inside a table does not work. So, if after all of this,
3034: # texwrap is on, we turn it off if we detect we're in a table:
3035: #
3036: if (($latex_rendering eq 'texwrap') && &is_inside_of($tagstack, "table")) {
3037: $latex_rendering = 'parpic';
1.248 foxr 3038: }
1.323 foxr 3039:
1.312 foxr 3040: # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering image file: $src");
1.248 foxr 3041:
1.390 foxr 3042: #if original bmp/gif/jpg/png file exist do following:
1.266 albertel 3043: my $origsrc=$src;
1.256 albertel 3044: my ($path,$file) = &get_eps_image($src);
1.341 foxr 3045: # &Apache::lonnet::logthis("Image source: $src result: $path $file");
1.122 albertel 3046: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.261 foxr 3047: &Apache::lonxml::debug("path = $path file = $file src = $src");
1.192 sakharuk 3048: if (-e $src) {
1.261 foxr 3049: &Apache::lonxml::debug("$src exists");
1.256 albertel 3050: my ($height_param,$width_param)=
1.266 albertel 3051: &image_size($origsrc,0.3,$parstack,$safeeval);
3052: my $size;
3053: if ($width_param) { $size.='width='.$width_param.' mm,'; }
3054: if ($height_param) { $size.='height='.$height_param.' mm]'; }
1.341 foxr 3055: # Default size if not able to extract that (e.g. eps image).
3056:
3057: # &Apache::lonnet::logthis("Size = $size");
3058:
1.266 albertel 3059: $size='['.$size;
3060: $size=~s/,$/]/;
1.344 albertel 3061: $currentstring .= '\graphicspath{{'.$path.'}}'
3062: .'\includegraphics'.$size.'{'.$file.'} ';
1.354 foxr 3063: my $closure;
3064: ($currentstring, $closure) = &align_latex_image($align,
3065: $latex_rendering,
3066: $currentstring,
3067: $width_param,
3068: $height_param);
3069: $currentstring .= $closure;
1.353 foxr 3070:
1.122 albertel 3071: } else {
1.261 foxr 3072: &Apache::lonxml::debug("$src does not exist");
1.122 albertel 3073: #original image file doesn't exist so check the alt attribute
3074: my $alt =
3075: &Apache::lonxml::get_param('alt',$parstack,$safeeval,undef,1);
3076: unless ($alt) {
3077: $alt=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
3078: }
3079:
1.256 albertel 3080: if ($alt) { $currentstring .= ' '.$alt.' '; }
1.59 sakharuk 3081: }
1.249 foxr 3082:
3083: # And here's where the semi-quote breaks down: allow the user
3084: # to edit the beast as well by rendering the problem for edit:
1.186 albertel 3085: } elsif ($target eq 'edit') {
1.368 banghart 3086: my $only = join(',',&Apache::loncommon::filecategorytypes('Pictures'));
1.186 albertel 3087: $currentstring .=&Apache::edit::tag_start($target,$token);
3088: $currentstring .=&Apache::edit::text_arg('Image Url:','src',$token,70).
1.368 banghart 3089: &Apache::edit::browse('src',undef,'alt',$only).' '.
1.186 albertel 3090: &Apache::edit::search('src',undef,'alt').'<br />';
3091: $currentstring .=&Apache::edit::text_arg('Description:','alt',$token,70).'<br />';
3092: $currentstring .=&Apache::edit::text_arg('width (pixel):','width',$token,5);
3093: $currentstring .=&Apache::edit::text_arg('height (pixel):','height',$token,5).'<br />';
3094: $currentstring .=&Apache::edit::text_arg('TeXwidth (mm):','TeXwidth',$token,5);
3095: $currentstring .=&Apache::edit::text_arg('TeXheight (mm):','TeXheight',$token,5);
1.234 albertel 3096: $currentstring .=&Apache::edit::select_arg('Alignment:','align',
3097: ['','bottom','middle','top','left','right'],$token,5);
1.249 foxr 3098: $currentstring .=&Apache::edit::select_arg('TeXwrap:', 'TeXwrap',
1.348 albertel 3099: ['', 'none','parbox', 'parpic', 'wrapfigure'], $token, 2);
1.332 www 3100: $currentstring .=&Apache::edit::select_arg('Encrypt URL:','encrypturl',
1.322 albertel 3101: ['no','yes'], $token, 2);
1.186 albertel 3102: $currentstring .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1.249 foxr 3103: my $src= &Apache::lonxml::get_param('src',$parstack,$safeeval);
3104: my $alt= &Apache::lonxml::get_param('alt',$parstack,$safeeval);
3105: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
3106: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
3107:
1.381 www 3108: if ($token->[2]{'src'}=~/\$/) {
3109: $currentstring.='Variable image source';
3110: } else {
3111: $currentstring .= '<img src="'.$src.'" alt="'.$alt.'" ';
3112: if ($width) { $currentstring.=' width="'.$width.'" '; }
3113: if ($height) { $currentstring.=' height="'.$height.'" '; }
3114: $currentstring .= ' />';
3115: }
1.186 albertel 3116: } elsif ($target eq 'modified') {
1.210 albertel 3117: my ($osrc,$owidth,$oheight)=
3118: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
3119: my $ctag=&Apache::edit::get_new_args($token,$parstack,
1.234 albertel 3120: $safeeval,'src','alt','align',
1.249 foxr 3121: 'TeXwidth','TeXheight', 'TeXwrap',
1.322 albertel 3122: 'width','height','encrypturl');
1.210 albertel 3123: my ($nsrc,$nwidth,$nheight)=
3124: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
3125: my $loc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$nsrc);
3126: &image_replication($loc);
3127: my ($iwidth,$iheight);
3128: if (-e $loc) {
3129: my $image = Image::Magick->new;
3130: $image->Read($loc);
3131: ($iwidth, $iheight) = ($image->Get('width'),
3132: $image->Get('height'));
3133: }
3134: if ($osrc ne $nsrc || (!$nwidth && !$nheight)) {
3135: # changed image or no size specified,
3136: # if they didn't explicitly change the
3137: # width or height use the ones from the image
3138: if ($iwidth && $iheight) {
3139: if ($owidth == $nwidth || (!$nwidth && !$nheight)) {
3140: $token->[2]{'width'} = $iwidth;$ctag=1;
3141: }
3142: if ($oheight == $nheight || (!$nwidth && !$nheight)) {
3143: $token->[2]{'height'}=$iheight;$ctag=1;
1.186 albertel 3144: }
3145: }
3146: }
1.210 albertel 3147: my ($cwidth,$cheight)=($token->[2]{'width'},$token->[2]{'height'});
3148: # if we don't have a width or height
3149: if ($iwidth && $cwidth && !$cheight) {
3150: $token->[2]{'height'}=int(($cwidth/$iwidth)*$iheight);$ctag=1;
3151: }
3152: if ($iheight && $cheight && !$cwidth) {
3153: $token->[2]{'width'}=int(($cheight/$iheight)*$iwidth);$ctag=1;
3154: }
3155: if ($ctag) {$currentstring=&Apache::edit::rebuild_tag($token);}
1.122 albertel 3156: }
1.261 foxr 3157:
1.122 albertel 3158: return $currentstring;
3159: }
3160:
3161: sub end_img {
3162: my ($target,$token) = @_;
3163: my $currentstring = '';
1.325 albertel 3164: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3165: $currentstring = $token->[2];
3166: } elsif ($target eq 'tex') {
3167: $currentstring = '';
3168: }
3169: return $currentstring;
3170: }
3171:
1.181 sakharuk 3172: #-- <applet> tag (end tag required)
1.122 albertel 3173: sub start_applet {
3174: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3175:
3176: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,undef,1);
1.290 albertel 3177: &Apache::lonxml::extlink($code);
1.122 albertel 3178: my $archive=&Apache::lonxml::get_param('archive',$parstack,$safeeval,
3179: undef,1);
1.290 albertel 3180: &Apache::lonxml::extlink($archive);
1.122 albertel 3181: my $currentstring = '';
1.325 albertel 3182: if ($target eq 'web' || $target eq 'webgrade') {
1.267 albertel 3183: if ($env{'browser.appletsuppress'} ne 'on') {
1.250 albertel 3184: $currentstring = &Apache::lonenc::encrypt_ref($token,
3185: {'code'=>$code,
3186: 'archive'=>$archive}
3187: );
1.122 albertel 3188: } else {
3189: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
3190: $safeeval,undef,1);
3191: unless ($alttag) {
3192: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
3193: $code);
1.44 sakharuk 3194: }
1.122 albertel 3195: $currentstring='[APPLET: '.$alttag.']';
1.1 sakharuk 3196: }
1.122 albertel 3197: } elsif ($target eq 'tex') {
1.361 foxr 3198: # Turn off some stuff we can't be inside thank you LaTeX
3199:
3200:
3201: my $restart_sub = 0;
3202: my $restart_sup = 0;
3203:
3204: # Since <sub> and <sup> are simple tags it's ok to turn off/on
3205: # using the start_ stop_ functions.. those tags only care about
3206: # $target.
3207:
3208: if (&is_inside_of($tagstack, "sub")) {
3209: $restart_sub = 1;
3210: $currentstring .= &end_sub($target, $token, $tagstack,
3211: $parstack, $parser, $safeeval);
3212: }
3213: if (&is_inside_of($tagstack, "sup")) {
3214: $restart_sup = 1;
3215: $currentstring .= &end_sup($target, $token, $tagstack,
3216: $parstack, $parser, $safeeval);
3217: }
3218:
3219: # Now process the applet; just replace it with its alt attribute.
3220:
1.177 albertel 3221: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
3222: $safeeval,undef,1);
3223: unless ($alttag) {
3224: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,
3225: undef,1);
3226: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
3227: $code);
1.175 sakharuk 3228: }
1.177 albertel 3229: $currentstring.='\begin{center} \fbox{Java Applet: '.$alttag.
3230: '.}\end{center}';
1.361 foxr 3231:
3232: # Turn stuff back on that we can't be inside of.
3233:
3234: if ($restart_sub) {
3235: $currentstring .= &start_sub($target, $token, $tagstack,
3236: $parstack, $parser, $safeeval);
3237: }
3238: if ($restart_sup) {
3239: $currentstring .= &start_sup($target, $token, $tagstack,
3240: $parstack, $parser, $safeeval);
3241: }
1.122 albertel 3242: }
3243: return $currentstring;
3244: }
3245:
3246: sub end_applet {
3247: my ($target,$token) = @_;
3248: my $currentstring = '';
1.325 albertel 3249: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3250: $currentstring = $token->[2];
3251: } elsif ($target eq 'tex') {
3252: }
3253: return $currentstring;
3254: }
3255:
1.181 sakharuk 3256: #-- <embed> tag (end tag optional/required)
1.122 albertel 3257: sub start_embed {
3258: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3259: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
1.290 albertel 3260: &Apache::lonxml::extlink($src);
1.122 albertel 3261: my $currentstring = '';
1.325 albertel 3262: if ($target eq 'web' || $target eq 'webgrade') {
1.267 albertel 3263: if ($env{'browser.embedsuppress'} ne 'on') {
1.250 albertel 3264: $currentstring=&Apache::lonenc::encrypt_ref($token,{'src'=>$src});
1.122 albertel 3265: } else {
3266: my $alttag=&Apache::lonxml::get_param
3267: ('alt',$parstack,$safeeval,undef,1);
3268: unless ($alttag) {
3269: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
1.42 albertel 3270: }
1.122 albertel 3271: $currentstring='[EMBED: '.$alttag.']';
1.10 www 3272: }
1.122 albertel 3273: } elsif ($target eq 'tex') {
3274: }
3275: return $currentstring;
3276: }
3277:
3278: sub end_embed {
3279: my ($target,$token) = @_;
3280: my $currentstring = '';
1.325 albertel 3281: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3282: $currentstring = $token->[2];
1.175 sakharuk 3283: } elsif ($target eq 'tex') {
1.122 albertel 3284: }
3285: return $currentstring;
3286: }
3287:
1.181 sakharuk 3288: #-- <param> tag (end tag forbidden)
1.122 albertel 3289: sub start_param {
3290: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.290 albertel 3291: if (&Apache::lonxml::get_param('name',$parstack,
3292: $safeeval,undef,1)=~/^cabbase$/i) {
3293: my $value=&Apache::lonxml::get_param('value',$parstack,
3294: $safeeval,undef,1);
3295: &Apache::lonxml::extlink($value);
3296: }
3297:
3298: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
3299: &Apache::lonxml::extlink($src);
1.122 albertel 3300: my $currentstring = '';
1.325 albertel 3301: if ($target eq 'web' || $target eq 'webgrade') {
1.250 albertel 3302: my %toconvert;
3303: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
3304: if ($src) { $toconvert{'src'}= $src; }
3305: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval,
3306: undef,1);
1.251 albertel 3307: if ($name=~/^cabbase$/i) {
3308: $toconvert{'value'}=&Apache::lonxml::get_param('value',$parstack,
3309: $safeeval,undef,1);
3310: }
1.250 albertel 3311: $currentstring = &Apache::lonenc::encrypt_ref($token,\%toconvert);
1.122 albertel 3312: } elsif ($target eq 'tex') {
3313: }
3314: return $currentstring;
3315: }
3316:
3317: sub end_param {
3318: my ($target,$token) = @_;
3319: my $currentstring = '';
1.325 albertel 3320: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3321: $currentstring = $token->[2];
3322: } elsif ($target eq 'tex') {
3323: }
3324: return $currentstring;
3325: }
3326:
3327: #-- <allow> tag
3328: sub start_allow {
3329: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3330: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
1.290 albertel 3331: &Apache::lonxml::extlink($src);
3332:
1.241 albertel 3333: if ($target eq 'tex') { &image_replication($src); }
1.122 albertel 3334: my $result;
3335: if ($target eq 'edit') {
3336: $result .=&Apache::edit::tag_start($target,$token);
3337: $result .=&Apache::edit::text_arg('File Spec:','src',$token,70);
3338: $result .=&Apache::edit::end_row();#.&Apache::edit::start_spanning_row();
3339: } elsif ($target eq 'modified') {
3340: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
3341: $safeeval,'src');
3342: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
3343: }
3344: return $result;
3345: }
3346:
3347: sub end_allow {
3348: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3349: if ( $target eq 'edit') { return (&Apache::edit::end_table()); }
3350: return '';
3351: }
1.119 www 3352:
1.181 sakharuk 3353: #-- Frames (end tag required)
3354: #-- <frameset>
1.122 albertel 3355: sub start_frameset {
3356: my ($target,$token) = @_;
1.277 foxr 3357: my $currentstring = ''; # Close any pending para.
1.325 albertel 3358: if ($target eq 'web' || $target eq 'webgrade') {
1.328 albertel 3359: $currentstring =
3360: &Apache::loncommon::start_page($Apache::londefdef::title,
3361: $Apache::londefdef::head,
3362: {'add_entries' => $token->[2],
3363: 'no_title' => 1,
3364: 'force_register' => 1,
3365: 'frameset' => 1,});
3366:
1.122 albertel 3367: }
3368: return $currentstring;
3369: }
3370:
3371: sub end_frameset {
3372: my ($target,$token) = @_;
3373: my $currentstring = '';
1.325 albertel 3374: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3375: $currentstring = $token->[2];
3376: }
3377: return $currentstring;
3378: }
1.162 sakharuk 3379:
1.181 sakharuk 3380: #-- <xmp> (end tag required)
1.162 sakharuk 3381: sub start_xmp {
3382: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3383: my $currentstring = '';
1.325 albertel 3384: if ($target eq 'web' || $target eq 'webgrade') {
1.162 sakharuk 3385: $currentstring .= $token->[4];
3386: } elsif ($target eq 'tex') {
3387: $currentstring .= '\begin{verbatim}';
3388: }
3389: return $currentstring;
3390: }
3391:
3392: sub end_xmp {
3393: my ($target,$token) = @_;
3394: my $currentstring = '';
1.325 albertel 3395: if ($target eq 'web' || $target eq 'webgrade') {
1.162 sakharuk 3396: $currentstring .= $token->[2];
3397: } elsif ($target eq 'tex') {
3398: $currentstring .= '\end{verbatim}';
3399: }
3400: return $currentstring;
3401: }
3402:
1.181 sakharuk 3403: #-- <pre> (end tag required)
1.122 albertel 3404: sub start_pre {
1.126 sakharuk 3405: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 3406: my $currentstring = &end_p(); # close off pending <p>
1.325 albertel 3407: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3408: $currentstring .= $token->[4];
3409: } elsif ($target eq 'tex') {
1.136 sakharuk 3410: $currentstring .= '\begin{verbatim}';
1.319 albertel 3411: &Apache::lonxml::disable_LaTeX_substitutions();
1.122 albertel 3412: }
3413: return $currentstring;
3414: }
3415:
3416: sub end_pre {
3417: my ($target,$token) = @_;
3418: my $currentstring = '';
1.325 albertel 3419: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3420: $currentstring .= $token->[2];
3421: } elsif ($target eq 'tex') {
1.136 sakharuk 3422: $currentstring .= '\end{verbatim}';
1.319 albertel 3423: &Apache::lonxml::enable_LaTeX_substitutions();
1.122 albertel 3424: }
3425: return $currentstring;
3426: }
3427:
3428: #-- <insert>
3429: sub start_insert {
3430: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3431: my $currentstring = '';
1.325 albertel 3432: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3433: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
3434: $currentstring .= '<b>'.$display.'</b>';;
3435: }
3436: return $currentstring;
3437: }
3438:
3439: sub end_insert {
3440: my ($target,$token) = @_;
3441: my $currentstring = '';
1.325 albertel 3442: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3443: $currentstring .= '';
3444: }
3445: return $currentstring;
3446: }
3447:
3448: #-- <externallink>
3449: sub start_externallink {
3450: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3451: my $currentstring = '';
1.325 albertel 3452: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3453: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
3454: $currentstring .= '<b>'.$display.'</b>';;
3455: }
3456: return $currentstring;
3457: }
3458:
3459: sub end_externallink {
3460: my ($target,$token) = @_;
3461: my $currentstring = '';
1.325 albertel 3462: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3463: $currentstring .= '';
3464: }
3465: return $currentstring;
3466: }
3467:
3468: #-- <blankspace heigth="">
3469: sub start_blankspace {
3470: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 3471: my $currentstring = &end_p(); # closes off any unclosed <p>
1.122 albertel 3472: if ($target eq 'tex') {
3473: my $howmuch = &Apache::lonxml::get_param('heigth',$parstack,$safeeval,undef,1);
3474: $currentstring .= '\vskip '.$howmuch.' ';
3475: }
3476: return $currentstring;
3477: }
3478:
3479: sub end_blankspace {
3480: my ($target,$token) = @_;
3481: my $currentstring = '';
3482: if ($target eq 'tex') {
3483: $currentstring .= '';
3484: }
3485: return $currentstring;
3486: }
3487:
1.181 sakharuk 3488: #-- <abbr> tag (end tag required)
1.122 albertel 3489: sub start_abbr {
3490: my ($target,$token) = @_;
3491: my $currentstring = '';
1.325 albertel 3492: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3493: $currentstring = $token->[4];
3494: }
3495: return $currentstring;
3496: }
3497:
3498: sub end_abbr {
3499: my ($target,$token) = @_;
3500: my $currentstring = '';
1.325 albertel 3501: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3502: $currentstring = $token->[2];
3503: }
3504: return $currentstring;
3505: }
3506:
1.181 sakharuk 3507: #-- <acronym> tag (end tag required)
1.122 albertel 3508: sub start_acronym {
3509: my ($target,$token) = @_;
3510: my $currentstring = '';
1.325 albertel 3511: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3512: $currentstring = $token->[4];
3513: }
3514: return $currentstring;
3515: }
3516:
3517: sub end_acronym {
3518: my ($target,$token) = @_;
3519: my $currentstring = '';
1.325 albertel 3520: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3521: $currentstring = $token->[2];
3522: }
3523: return $currentstring;
3524: }
3525:
1.181 sakharuk 3526: #-- <area> tag (end tag forbidden)
1.122 albertel 3527: sub start_area {
3528: my ($target,$token) = @_;
3529: my $currentstring = '';
1.325 albertel 3530: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3531: $currentstring = $token->[4];
3532: }
3533: return $currentstring;
3534: }
3535:
3536: sub end_area {
3537: my ($target,$token) = @_;
3538: my $currentstring = '';
1.325 albertel 3539: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3540: $currentstring = $token->[2];
3541: }
3542: return $currentstring;
3543: }
3544:
1.181 sakharuk 3545: #-- <base> tag (end tag forbidden)
1.122 albertel 3546: sub start_base {
3547: my ($target,$token) = @_;
3548: my $currentstring = '';
1.325 albertel 3549: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3550: $currentstring = $token->[4];
1.161 sakharuk 3551: }
1.122 albertel 3552: return $currentstring;
3553: }
3554:
3555: sub end_base {
3556: my ($target,$token) = @_;
3557: my $currentstring = '';
1.325 albertel 3558: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3559: $currentstring = $token->[2];
3560: }
3561: return $currentstring;
3562: }
3563:
1.181 sakharuk 3564: #-- <bdo> tag (end tag required)
1.122 albertel 3565: sub start_bdo {
3566: my ($target,$token) = @_;
3567: my $currentstring = '';
1.325 albertel 3568: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3569: $currentstring = $token->[4];
3570: }
3571: return $currentstring;
3572: }
3573:
3574: sub end_bdo {
3575: my ($target,$token) = @_;
3576: my $currentstring = '';
1.325 albertel 3577: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3578: $currentstring = $token->[2];
3579: }
3580: return $currentstring;
3581: }
3582:
1.181 sakharuk 3583: #-- <bgsound> tag (end tag optional)
1.122 albertel 3584: sub start_bgsound {
3585: my ($target,$token) = @_;
3586: my $currentstring = '';
1.325 albertel 3587: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3588: $currentstring = $token->[4];
3589: }
3590: return $currentstring;
3591: }
3592:
3593: sub end_bgsound {
3594: my ($target,$token) = @_;
3595: my $currentstring = '';
1.325 albertel 3596: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3597: $currentstring = $token->[2];
3598: }
3599: return $currentstring;
3600: }
3601:
1.181 sakharuk 3602: #-- <blink> tag (end tag required)
1.122 albertel 3603: sub start_blink {
3604: my ($target,$token) = @_;
3605: my $currentstring = '';
1.325 albertel 3606: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3607: $currentstring = $token->[4];
3608: }
3609: return $currentstring;
3610: }
3611:
3612: sub end_blink {
3613: my ($target,$token) = @_;
3614: my $currentstring = '';
1.325 albertel 3615: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3616: $currentstring = $token->[2];
3617: }
3618: return $currentstring;
3619: }
3620:
1.181 sakharuk 3621: #-- <blockquote> tag (end tag required)
1.122 albertel 3622: sub start_blockquote {
3623: my ($target,$token) = @_;
1.279 foxr 3624: my $currentstring = &end_p(); # Close any unclosed <p>
1.325 albertel 3625: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 3626: $currentstring .= $token->[4];
1.122 albertel 3627: }
1.339 foxr 3628: if ($target eq 'tex') {
3629: $currentstring .= '\begin{quote}';
3630: }
1.122 albertel 3631: return $currentstring;
3632: }
3633:
3634: sub end_blockquote {
3635: my ($target,$token) = @_;
3636: my $currentstring = '';
1.325 albertel 3637: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3638: $currentstring = $token->[2];
3639: }
1.339 foxr 3640: if ($target eq 'tex') {
3641: $currentstring = '\end{quote}';
3642: }
1.122 albertel 3643: return $currentstring;
3644: }
3645:
1.181 sakharuk 3646: #-- <button> tag (end tag required)
1.122 albertel 3647: sub start_button {
3648: my ($target,$token) = @_;
3649: my $currentstring = '';
1.325 albertel 3650: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3651: $currentstring = $token->[4];
3652: }
3653: return $currentstring;
3654: }
3655:
3656: sub end_button {
3657: my ($target,$token) = @_;
3658: my $currentstring = '';
1.325 albertel 3659: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3660: $currentstring = $token->[2];
3661: }
3662: return $currentstring;
3663: }
3664:
1.181 sakharuk 3665: #-- <caption> tag (end tag required)
1.122 albertel 3666: sub start_caption {
3667: my ($target,$token) = @_;
3668: my $currentstring = '';
1.325 albertel 3669: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3670: $currentstring = $token->[4];
3671: }
3672: return $currentstring;
3673: }
3674:
3675: sub end_caption {
3676: my ($target,$token) = @_;
3677: my $currentstring = '';
1.325 albertel 3678: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3679: $currentstring = $token->[2];
3680: }
3681: return $currentstring;
3682: }
3683:
1.181 sakharuk 3684: #-- <col> tag (end tag forbdden)
1.122 albertel 3685: sub start_col {
3686: my ($target,$token) = @_;
3687: my $currentstring = '';
1.325 albertel 3688: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3689: $currentstring = $token->[4];
3690: }
3691: return $currentstring;
3692: }
3693:
3694: sub end_col {
3695: my ($target,$token) = @_;
3696: my $currentstring = '';
1.325 albertel 3697: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3698: $currentstring = $token->[2];
3699: }
3700: return $currentstring;
3701: }
3702:
1.181 sakharuk 3703: #-- <colgroup> tag (end tag optional)
1.122 albertel 3704: sub start_colgroup {
3705: my ($target,$token) = @_;
3706: my $currentstring = '';
1.325 albertel 3707: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3708: $currentstring = $token->[4];
3709: }
3710: return $currentstring;
3711: }
3712:
3713: sub end_colgroup {
3714: my ($target,$token) = @_;
3715: my $currentstring = '';
1.325 albertel 3716: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3717: $currentstring = $token->[2];
3718: }
3719: return $currentstring;
3720: }
3721:
1.181 sakharuk 3722: #-- <del> tag (end tag required)
1.122 albertel 3723: sub start_del {
3724: my ($target,$token) = @_;
3725: my $currentstring = '';
1.325 albertel 3726: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3727: $currentstring = $token->[4];
3728: }
3729: return $currentstring;
3730: }
3731:
3732: sub end_del {
3733: my ($target,$token) = @_;
3734: my $currentstring = '';
1.325 albertel 3735: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3736: $currentstring = $token->[2];
3737: }
3738: return $currentstring;
3739: }
3740:
1.181 sakharuk 3741: #-- <fieldset> tag (end tag required)
1.122 albertel 3742: sub start_fieldset {
3743: my ($target,$token) = @_;
3744: my $currentstring = '';
1.325 albertel 3745: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3746: $currentstring = $token->[4];
3747: }
3748: return $currentstring;
3749: }
3750:
3751: sub end_fieldset {
3752: my ($target,$token) = @_;
3753: my $currentstring = '';
1.325 albertel 3754: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3755: $currentstring = $token->[2];
3756: }
3757: return $currentstring;
3758: }
3759:
1.181 sakharuk 3760: #-- <frame> tag (end tag forbidden)
1.122 albertel 3761: sub start_frame {
3762: my ($target,$token) = @_;
3763: my $currentstring = '';
1.325 albertel 3764: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3765: $currentstring = $token->[4];
3766: }
3767: return $currentstring;
3768: }
3769:
3770: sub end_frame {
3771: my ($target,$token) = @_;
3772: my $currentstring = '';
1.325 albertel 3773: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3774: $currentstring = $token->[2];
3775: }
3776: return $currentstring;
3777: }
3778:
1.181 sakharuk 3779: #-- <iframe> tag (end tag required)
1.122 albertel 3780: sub start_iframe {
3781: my ($target,$token) = @_;
3782: my $currentstring = '';
1.325 albertel 3783: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3784: $currentstring = $token->[4];
3785: }
3786: return $currentstring;
3787: }
3788:
3789: sub end_iframe {
3790: my ($target,$token) = @_;
3791: my $currentstring = '';
1.325 albertel 3792: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3793: $currentstring = $token->[2];
3794: }
3795: return $currentstring;
3796: }
3797:
1.181 sakharuk 3798: #-- <ins> tag (end tag required)
1.122 albertel 3799: sub start_ins {
3800: my ($target,$token) = @_;
3801: my $currentstring = '';
1.325 albertel 3802: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3803: $currentstring = $token->[4];
3804: }
3805: return $currentstring;
3806: }
3807:
3808: sub end_ins {
3809: my ($target,$token) = @_;
3810: my $currentstring = '';
1.325 albertel 3811: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3812: $currentstring = $token->[2];
3813: }
3814: return $currentstring;
3815: }
3816:
1.181 sakharuk 3817: #-- <isindex> tag (end tag forbidden)
1.122 albertel 3818: sub start_isindex {
3819: my ($target,$token) = @_;
3820: my $currentstring = '';
1.325 albertel 3821: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3822: $currentstring = $token->[4];
3823: }
3824: return $currentstring;
3825: }
3826:
3827: sub end_isindex {
3828: my ($target,$token) = @_;
3829: my $currentstring = '';
1.325 albertel 3830: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3831: $currentstring = $token->[2];
3832: }
3833: return $currentstring;
3834: }
3835:
1.181 sakharuk 3836: #-- <keygen> tag (end tag forbidden)
1.122 albertel 3837: sub start_keygen {
3838: my ($target,$token) = @_;
3839: my $currentstring = '';
1.325 albertel 3840: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3841: $currentstring = $token->[4];
3842: }
3843: return $currentstring;
3844: }
3845:
3846: sub end_keygen {
3847: my ($target,$token) = @_;
3848: my $currentstring = '';
1.325 albertel 3849: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3850: $currentstring = $token->[2];
3851: }
3852: return $currentstring;
3853: }
3854:
3855: #-- <label> tag
3856: sub start_label {
3857: my ($target,$token) = @_;
3858: my $currentstring = '';
1.325 albertel 3859: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3860: $currentstring = $token->[4];
3861: }
3862: return $currentstring;
3863: }
3864:
3865: sub end_label {
3866: my ($target,$token) = @_;
3867: my $currentstring = '';
1.325 albertel 3868: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3869: $currentstring = $token->[2];
3870: }
3871: return $currentstring;
3872: }
3873:
1.181 sakharuk 3874: #-- <layer> tag (end tag required)
1.122 albertel 3875: sub start_layer {
3876: my ($target,$token) = @_;
3877: my $currentstring = '';
1.325 albertel 3878: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3879: $currentstring = $token->[4];
3880: }
3881: return $currentstring;
3882: }
3883:
3884: sub end_layer {
3885: my ($target,$token) = @_;
3886: my $currentstring = '';
1.325 albertel 3887: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3888: $currentstring = $token->[2];
3889: }
3890: return $currentstring;
3891: }
3892:
1.181 sakharuk 3893: #-- <legend> tag (end tag required)
1.122 albertel 3894: sub start_legend {
3895: my ($target,$token) = @_;
3896: my $currentstring = '';
1.325 albertel 3897: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3898: $currentstring = $token->[4];
3899: }
3900: return $currentstring;
3901: }
3902:
3903: sub end_legend {
3904: my ($target,$token) = @_;
3905: my $currentstring = '';
1.325 albertel 3906: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3907: $currentstring = $token->[2];
3908: }
3909: return $currentstring;
3910: }
3911:
1.181 sakharuk 3912: #-- <link> tag (end tag forbidden)
1.122 albertel 3913: sub start_link {
1.292 albertel 3914: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 3915: my $currentstring = '';
1.324 albertel 3916: if ($target eq 'web' || $target eq 'webgrade') {
1.291 albertel 3917: my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
3918: undef,1);
3919: &Apache::lonxml::extlink($href);
1.122 albertel 3920: $currentstring = $token->[4];
3921: }
3922: return $currentstring;
3923: }
3924:
3925: sub end_link {
3926: my ($target,$token) = @_;
3927: my $currentstring = '';
1.325 albertel 3928: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3929: $currentstring = $token->[2];
3930: }
3931: return $currentstring;
3932: }
3933:
1.181 sakharuk 3934: #-- <marquee> tag (end tag optional)
1.122 albertel 3935: sub start_marquee {
3936: my ($target,$token) = @_;
3937: my $currentstring = '';
1.325 albertel 3938: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3939: $currentstring = $token->[4];
3940: }
3941: return $currentstring;
3942: }
3943:
3944: sub end_marquee {
3945: my ($target,$token) = @_;
3946: my $currentstring = '';
1.325 albertel 3947: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3948: $currentstring = $token->[2];
3949: }
3950: return $currentstring;
3951: }
3952:
1.179 sakharuk 3953: #-- <multicol> tag (end tag required)
3954: sub start_multicol {
1.122 albertel 3955: my ($target,$token) = @_;
1.279 foxr 3956: my $currentstring = &end_p(); # Close any pending <p>
1.325 albertel 3957: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 3958: $currentstring .= $token->[4];
1.122 albertel 3959: }
3960: return $currentstring;
3961: }
3962:
1.179 sakharuk 3963: sub end_multicol {
1.122 albertel 3964: my ($target,$token) = @_;
3965: my $currentstring = '';
1.325 albertel 3966: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3967: $currentstring = $token->[2];
3968: }
3969: return $currentstring;
3970: }
3971:
1.179 sakharuk 3972: #-- <nobr> tag (end tag required)
1.122 albertel 3973: sub start_nobr {
3974: my ($target,$token) = @_;
3975: my $currentstring = '';
1.325 albertel 3976: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3977: $currentstring = $token->[4];
1.179 sakharuk 3978: } elsif ($target eq 'tex') {
3979: $currentstring='\mbox{';
3980: }
1.122 albertel 3981: return $currentstring;
3982: }
3983:
3984: sub end_nobr {
3985: my ($target,$token) = @_;
3986: my $currentstring = '';
1.325 albertel 3987: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3988: $currentstring = $token->[2];
1.179 sakharuk 3989: } elsif ($target eq 'tex') {
3990: $currentstring='}';
3991: }
1.122 albertel 3992: return $currentstring;
3993: }
3994:
1.179 sakharuk 3995: #-- <noembed> tag (end tag required)
1.122 albertel 3996: sub start_noembed {
3997: my ($target,$token) = @_;
3998: my $currentstring = '';
1.325 albertel 3999: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4000: $currentstring = $token->[4];
4001: }
4002: return $currentstring;
4003: }
4004:
4005: sub end_noembed {
4006: my ($target,$token) = @_;
4007: my $currentstring = '';
1.325 albertel 4008: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4009: $currentstring = $token->[2];
4010: }
4011: return $currentstring;
4012: }
4013:
1.179 sakharuk 4014: #-- <noframes> tag (end tag required)
1.122 albertel 4015: sub start_noframes {
4016: my ($target,$token) = @_;
4017: my $currentstring = '';
1.325 albertel 4018: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4019: $currentstring = $token->[4];
4020: }
4021: return $currentstring;
4022: }
4023:
4024: sub end_noframes {
4025: my ($target,$token) = @_;
4026: my $currentstring = '';
1.325 albertel 4027: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4028: $currentstring = $token->[2];
4029: }
4030: return $currentstring;
4031: }
4032:
1.179 sakharuk 4033: #-- <nolayer> tag (end tag required)
1.122 albertel 4034: sub start_nolayer {
4035: my ($target,$token) = @_;
4036: my $currentstring = '';
1.325 albertel 4037: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4038: $currentstring = $token->[4];
4039: }
4040: return $currentstring;
4041: }
4042:
4043: sub end_nolayer {
4044: my ($target,$token) = @_;
4045: my $currentstring = '';
1.325 albertel 4046: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4047: $currentstring = $token->[2];
4048: }
4049: return $currentstring;
4050: }
4051:
1.179 sakharuk 4052: #-- <noscript> tag (end tag required)
1.122 albertel 4053: sub start_noscript {
4054: my ($target,$token) = @_;
4055: my $currentstring = '';
1.325 albertel 4056: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4057: $currentstring = $token->[4];
4058: }
4059: return $currentstring;
4060: }
4061:
4062: sub end_noscript {
4063: my ($target,$token) = @_;
4064: my $currentstring = '';
1.325 albertel 4065: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4066: $currentstring = $token->[2];
4067: }
4068: return $currentstring;
4069: }
4070:
1.179 sakharuk 4071: #-- <object> tag (end tag required)
1.122 albertel 4072: sub start_object {
4073: my ($target,$token) = @_;
4074: my $currentstring = '';
1.325 albertel 4075: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4076: $currentstring = $token->[4];
4077: }
4078: return $currentstring;
4079: }
4080:
4081: sub end_object {
4082: my ($target,$token) = @_;
4083: my $currentstring = '';
1.325 albertel 4084: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4085: $currentstring = $token->[2];
4086: }
4087: return $currentstring;
4088: }
4089:
1.179 sakharuk 4090: #-- <optgroup> tag (end tag required)
1.122 albertel 4091: sub start_optgroup {
4092: my ($target,$token) = @_;
4093: my $currentstring = '';
1.325 albertel 4094: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4095: $currentstring = $token->[4];
4096: }
4097: return $currentstring;
4098: }
4099:
4100: sub end_optgroup {
4101: my ($target,$token) = @_;
4102: my $currentstring = '';
1.325 albertel 4103: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4104: $currentstring = $token->[2];
4105: }
4106: return $currentstring;
4107: }
4108:
1.179 sakharuk 4109: #-- <samp> tag (end tag required)
1.122 albertel 4110: sub start_samp {
4111: my ($target,$token) = @_;
4112: my $currentstring = '';
1.325 albertel 4113: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4114: $currentstring = $token->[4];
1.179 sakharuk 4115: } elsif ($target eq 'tex') {
4116: $currentstring='\texttt{';
4117: }
1.122 albertel 4118: return $currentstring;
4119: }
4120:
4121: sub end_samp {
4122: my ($target,$token) = @_;
4123: my $currentstring = '';
1.325 albertel 4124: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4125: $currentstring = $token->[2];
1.179 sakharuk 4126: } elsif ($target eq 'tex') {
4127: $currentstring='}';
4128: }
1.122 albertel 4129: return $currentstring;
4130: }
4131:
4132: #-- <server> tag
4133: sub start_server {
4134: my ($target,$token) = @_;
4135: my $currentstring = '';
1.325 albertel 4136: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4137: $currentstring = $token->[4];
4138: }
4139: return $currentstring;
4140: }
4141:
4142: sub end_server {
4143: my ($target,$token) = @_;
4144: my $currentstring = '';
1.325 albertel 4145: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4146: $currentstring = $token->[2];
4147: }
4148: return $currentstring;
4149: }
4150:
1.179 sakharuk 4151: #-- <spacer> tag (end tag forbidden)
1.122 albertel 4152: sub start_spacer {
4153: my ($target,$token) = @_;
1.279 foxr 4154: my $currentstring = &end_p(); # Close off any open <p> tag.
1.325 albertel 4155: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 4156: $currentstring .= $token->[4];
1.122 albertel 4157: }
4158: return $currentstring;
4159: }
4160:
4161: sub end_spacer {
4162: my ($target,$token) = @_;
4163: my $currentstring = '';
1.325 albertel 4164: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4165: $currentstring = $token->[2];
4166: }
4167: return $currentstring;
4168: }
4169:
1.179 sakharuk 4170: #-- <span> tag (end tag required)
1.122 albertel 4171: sub start_span {
4172: my ($target,$token) = @_;
4173: my $currentstring = '';
1.325 albertel 4174: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4175: $currentstring = $token->[4];
4176: }
4177: return $currentstring;
4178: }
4179:
4180: sub end_span {
4181: my ($target,$token) = @_;
4182: my $currentstring = '';
1.325 albertel 4183: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4184: $currentstring = $token->[2];
4185: }
4186: return $currentstring;
4187: }
4188:
1.179 sakharuk 4189: #-- <tbody> tag (end tag optional)
1.122 albertel 4190: sub start_tbody {
4191: my ($target,$token) = @_;
4192: my $currentstring = '';
1.325 albertel 4193: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4194: $currentstring = $token->[4];
4195: }
4196: return $currentstring;
4197: }
4198:
4199: sub end_tbody {
4200: my ($target,$token) = @_;
4201: my $currentstring = '';
1.325 albertel 4202: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4203: $currentstring = $token->[2];
4204: }
4205: return $currentstring;
4206: }
4207:
1.166 sakharuk 4208: #-- <tfoot> tag (end tag optional)
1.122 albertel 4209: sub start_tfoot {
4210: my ($target,$token) = @_;
4211: my $currentstring = '';
1.325 albertel 4212: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4213: $currentstring = $token->[4];
4214: }
4215: return $currentstring;
4216: }
4217:
4218: sub end_tfoot {
4219: my ($target,$token) = @_;
4220: my $currentstring = '';
1.325 albertel 4221: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4222: $currentstring = $token->[2];
4223: }
4224: return $currentstring;
4225: }
4226:
1.166 sakharuk 4227: #-- <thead> tag (end tag optional)
1.122 albertel 4228: sub start_thead {
4229: my ($target,$token) = @_;
4230: my $currentstring = '';
1.325 albertel 4231: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4232: $currentstring = $token->[4];
4233: }
4234: return $currentstring;
4235: }
1.10 www 4236:
1.122 albertel 4237: sub end_thead {
4238: my ($target,$token) = @_;
4239: my $currentstring = '';
1.325 albertel 4240: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4241: $currentstring = $token->[2];
4242: }
4243: return $currentstring;
4244: }
1.119 www 4245:
1.122 albertel 4246: #-- <var> tag
4247: sub start_var {
1.44 sakharuk 4248: my ($target,$token) = @_;
4249: my $currentstring = '';
1.325 albertel 4250: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4251: $currentstring = $token->[4];
1.163 sakharuk 4252: } elsif ($target eq 'tex') {
4253: $currentstring = '\textit{';
4254: }
1.44 sakharuk 4255: return $currentstring;
4256: }
1.10 www 4257:
1.122 albertel 4258: sub end_var {
4259: my ($target,$token) = @_;
1.44 sakharuk 4260: my $currentstring = '';
1.325 albertel 4261: if ($target eq 'web' || $target eq 'webgrade') {
1.163 sakharuk 4262: $currentstring = $token->[2];
4263: } elsif ($target eq 'tex') {
4264: $currentstring = '}';
1.44 sakharuk 4265: }
4266: return $currentstring;
4267: }
1.119 www 4268:
1.163 sakharuk 4269: #-- <wbr> tag (end tag forbidden)
1.122 albertel 4270: sub start_wbr {
4271: my ($target,$token) = @_;
4272: my $currentstring = '';
1.325 albertel 4273: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4274: $currentstring = $token->[4];
4275: }
4276: return $currentstring;
1.98 albertel 4277: }
4278:
1.122 albertel 4279: sub end_wbr {
4280: my ($target,$token) = @_;
4281: my $currentstring = '';
1.325 albertel 4282: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 4283: $currentstring = $token->[2];
4284: }
4285: return $currentstring;
1.98 albertel 4286: }
1.134 sakharuk 4287:
4288: #-- <hideweboutput> tag
4289: sub start_hideweboutput {
4290: my ($target,$token) = @_;
1.325 albertel 4291: if ($target eq 'web' || $target eq 'webgrade') {
1.134 sakharuk 4292: &Apache::lonxml::startredirection();
4293: }
4294: return '';
4295: }
4296:
4297: sub end_hideweboutput {
4298: my ($target,$token) = @_;
4299: my $currentstring = '';
1.325 albertel 4300: if ($target eq 'web' || $target eq 'webgrade') {
1.134 sakharuk 4301: $currentstring = &Apache::lonxml::endredirection();
4302: }
4303: return '';
4304: }
4305:
1.94 sakharuk 4306:
4307: sub image_replication {
4308: my $src = shift;
1.187 albertel 4309: if (not -e $src) { &Apache::lonnet::repcopy($src); }
4310: #replicates eps or ps
4311: my $epssrc = my $pssrc = $src;
4312: $epssrc =~ s/\.(gif|jpg|jpeg|png)$/.eps/i;
4313: $pssrc =~ s/\.(gif|jpg|jpeg|png)$/.ps/i;
4314: if (not -e $epssrc && not -e $pssrc) {
4315: my $result=&Apache::lonnet::repcopy($epssrc);
1.264 raeburn 4316: if ($result ne 'ok') { &Apache::lonnet::repcopy($pssrc); }
1.94 sakharuk 4317: }
4318: return '';
1.195 sakharuk 4319: }
1.275 foxr 4320: #
4321: # Get correct sizing parameter for an image given
4322: # it's initial ht. and wid. This allows sizing of
4323: # images that are generated on-the-fly (e.g. gnuplot)
4324: # as well as serving as a utility for image_size.
4325: #
4326: # Parameter:
4327: # height_param
4328: # width_param - Initial picture dimensions.
4329: # scaling - A scale factor.
4330: # parstack, - the current stack of tag attributes
4331: # from the xml parser
4332: # safeeval, - pointer to the safespace
4333: # depth, - from what level in the stack to look for attributes
4334: # (assumes -1 if unspecified)
4335: # cis - look for attrubutes case insensitively
4336: # (assumes false)
4337: #
4338: # Returns:
4339: # height, width - new dimensions.
4340: #
4341: sub resize_image {
4342: my ($height_param, $width_param, $scaling,
4343: $parstack, $safeeval, $depth, $cis) = @_;
4344:
4345: # First apply the scaling...
1.271 foxr 4346:
1.275 foxr 4347: $height_param = $height_param * $scaling;
4348: $width_param = $width_param * $scaling;
1.261 foxr 4349:
1.197 sakharuk 4350: #do we have any specified LaTeX size of the picture?
1.261 foxr 4351: my $toget='TeXwidth';
4352: if ($cis) {
4353: $toget=lc($toget);
4354: }
1.256 albertel 4355: my $TeXwidth = &Apache::lonxml::get_param($toget,$parstack,
4356: $safeeval,$depth,$cis);
4357: $toget='TeXheight'; if ($cis) { $toget=lc($toget); }
4358: my $TeXheight = &Apache::lonxml::get_param($toget,$parstack,
4359: $safeeval,$depth,$cis);
1.197 sakharuk 4360: #do we have any specified web size of the picture?
4361: my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval,
1.256 albertel 4362: $depth,1);
4363: if ($TeXwidth) {
1.252 matthew 4364: my $old_width_param=$width_param;
1.197 sakharuk 4365: if ($TeXwidth=~/(\d+)\s*\%/) {
1.267 albertel 4366: $width_param = $1*$env{'form.textwidth'}/100;
1.197 sakharuk 4367: } else {
4368: $width_param = $TeXwidth;
4369: }
1.266 albertel 4370: if ($TeXheight) {
4371: $height_param = $TeXheight;
4372: } elsif ($old_width_param) {
4373: $height_param=$TeXwidth/$old_width_param*$height_param;
4374: }
1.256 albertel 4375: } elsif ($TeXheight) {
1.248 foxr 4376: $height_param = $TeXheight;
1.266 albertel 4377: if ($height_param) {
4378: $width_param = $TeXheight/$height_param*$width_param;
4379: }
1.256 albertel 4380: } elsif ($width) {
1.252 matthew 4381: my $old_width_param=$width_param;
1.256 albertel 4382: $width_param = $width*$scaling;
1.266 albertel 4383: if ($old_width_param) {
4384: $height_param=$width_param/$old_width_param*$height_param;
4385: }
1.252 matthew 4386: }
1.267 albertel 4387: if ($width_param > $env{'form.textwidth'}) {
1.252 matthew 4388: my $old_width_param=$width_param;
1.267 albertel 4389: $width_param =0.95*$env{'form.textwidth'};
1.266 albertel 4390: if ($old_width_param) {
4391: $height_param=$width_param/$old_width_param*$height_param;
4392: }
1.197 sakharuk 4393: }
1.275 foxr 4394:
4395: return ($height_param, $width_param);
4396: }
4397:
4398: sub image_size {
4399: my ($src,$scaling,$parstack,$safeeval,$depth,$cis)=@_;
4400:
4401: #size of image from gif/jpg/jpeg/png
4402: my $ressrc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
4403: if (-e $ressrc) {
4404: $src = $ressrc;
4405: }
4406: my $image = Image::Magick->new;
4407: my $current_figure = $image->Read($src);
4408: my $width_param = $image->Get('width');
4409: my $height_param = $image->Get('height');
4410: &Apache::lonxml::debug("Image magick says: $src : Height = $height_param width = $width_param");
4411: undef($image);
4412:
4413: ($height_param, $width_param) = &resize_image($height_param, $width_param,
4414: $scaling, $parstack, $safeeval,
4415: $depth, $cis);
4416:
1.248 foxr 4417: return ($height_param, $width_param);
4418: }
4419:
4420: sub image_width {
4421: my ($height, $width) = &image_size(@_);
4422: return $width;
4423: }
4424: # Not yet 100% sure this is correct in all circumstances..
4425: # due to my uncertainty about mods to image_size.
4426: #
4427: sub image_height {
4428: my ($height, $width) = &image_size(@_);
4429: return $height;
1.197 sakharuk 4430: }
4431:
1.256 albertel 4432: sub get_eps_image {
4433: my ($src)=@_;
1.261 foxr 4434: my $orig_src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1], $src);
1.285 foxr 4435:
4436: # In order to prevent the substitution of the alt text, we need to
4437: # be sure the orig_src file is on system now so:
4438:
4439: if (! -e $orig_src) {
4440: &Apache::lonnet::repcopy($orig_src); # Failure is not completely fatal.
4441: }
1.275 foxr 4442: &Apache::lonxml::debug("get_eps_image: Original image: $orig_src");
1.390 foxr 4443: my ($spath, $sname, $sext) = &fileparse($src, qr/\.(bmp|gif|png|jpg|jpeg)/i);
4444: $src=~s/\.(bmp|gif|png|jpg|jpeg)$/\.eps/i;
1.256 albertel 4445: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.275 foxr 4446: &Apache::lonxml::debug("Filelocation gives: $src");
1.256 albertel 4447: if (! -e $src) {
1.261 foxr 4448: &Apache::lonxml::debug("$src does not exist");
1.264 raeburn 4449: if (&Apache::lonnet::repcopy($src) ne 'ok' ) {
1.261 foxr 4450: &Apache::lonxml::debug("Repcopy of $src failed (1)");
1.256 albertel 4451: #if replication failed try to find ps file
4452: $src=~s/\.eps$/\.ps/;
1.261 foxr 4453: &Apache::lonxml::debug("Now looking for $src");
1.270 foxr 4454: #if no ps file try to replicate it.
4455: my $didrepcopy = &Apache::lonnet::repcopy($src);
4456: &Apache::lonxml::debug("repcopy of $src ... $didrepcopy");
4457: if ( (not -e $src) ||
4458: ($didrepcopy ne 'ok')) {
1.261 foxr 4459: &Apache::lonxml::debug("Failed to find or replicate $src");
4460:
1.256 albertel 4461: #if replication failed try to produce eps file dynamically
4462: $src=~s/\.ps$/\.eps/;
4463: my $temp_file;
1.267 albertel 4464: open(FILE,">>/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat");
1.256 albertel 4465: my $newsrc=$orig_src;
4466: $newsrc =~ s|(.*)/res/|/home/httpd/html/res/|;
1.275 foxr 4467: &Apache::lonxml::debug("queueing $newsrc for dynamic eps production.");
1.344 albertel 4468: print FILE ("$newsrc\n");
4469: close(FILE);
1.256 albertel 4470: $src=~s|/home/httpd/html/res|/home/httpd/prtspool|;
4471: $src=~s|/home/([^/]*)/public_html/|/home/httpd/prtspool/$1/|;
1.283 albertel 4472: if ($sext ne "") { # Put the ext. back in to uniquify.
4473: $src =~ s/\.eps$/$sext.eps/;
4474: }
1.341 foxr 4475:
1.256 albertel 4476: }
1.343 foxr 4477:
1.256 albertel 4478: }
1.341 foxr 4479: } else {
4480: # If the postscript file has spaces in its name,
4481: # LaTeX will gratuitiously vomit. Therefore
4482: # queue such files for copy with " " replaced by "_".
4483: # printout.pm will know them by their .ps or .eps extensions.
4484: my $newsrc = $orig_src;
4485: $newsrc =~ s|(.*)/res/|/home/httpd/html/res/|;
4486: open(FILE,">>/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat");
1.343 foxr 4487: print FILE "$src\n";
1.341 foxr 4488: close FILE;
4489: $src=~s|/home/httpd/html/res|/home/httpd/prtspool|;
4490: $src=~s|/home/([^/]*)/public_html/|/home/httpd/prtspool/$1/|;
1.256 albertel 4491: }
4492: my ($path,$file)=($src=~m|(.*)/([^/]*)$|);
1.344 albertel 4493: $path =~ s/ /\_/g;
1.343 foxr 4494: $file =~ s/ /\_/g;
1.261 foxr 4495: &Apache::lonxml::debug("get_eps_image returning: $path / $file<BR />");
1.256 albertel 4496: return ($path.'/',$file);
4497: }
4498:
1.195 sakharuk 4499: sub eps_generation {
4500: my ($src,$file,$width_param) = @_;
1.267 albertel 4501: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat";
1.195 sakharuk 4502: my $temp_file = Apache::File->new('>>'.$filename);
4503: print $temp_file "$src\n";
4504: my $newsrc = $src;
1.390 foxr 4505: $newsrc =~ s/(\.bmp|\.gif|\.jpg|\.jpeg)$/\.eps/i;
1.345 albertel 4506: $newsrc=~s{/home/httpd/html/res}{};
4507: $newsrc=~s{/home/($LONCAPA::username_re)/public_html/}{/$1/};
4508: $newsrc=~s{/\./}{/};
4509: $newsrc=~s{/([^/]+)\.(ps|eps)}{/};
4510: if ($newsrc=~m{/home/httpd/lonUsers/}) {
4511: $newsrc=~s{/home/httpd/lonUsers}{};
4512: $newsrc=~s{/($LONCAPA::domain_re)/./././}{/$1/};
1.213 sakharuk 4513: }
1.345 albertel 4514: if ($newsrc=~m{/userfiles/}) {
1.239 sakharuk 4515: return ' \graphicspath{{'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4516: } else {
4517: return ' \graphicspath{{/home/httpd/prtspool'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4518: }
1.197 sakharuk 4519: }
4520:
4521: sub file_path {
4522: my $src=shift;
4523: my ($file,$path);
4524: if ($src =~ m!(.*)/([^/]*)$!) {
4525: $file = $2;
4526: $path = $1.'/';
4527: }
4528: return $file,$path;
1.126 sakharuk 4529: }
1.294 foxr 4530: # Converts a measurement in to mm from any of
4531: # the other valid LaTeX units of measure.
4532: # If the units of measure are missing from the
4533: # parameter, it is assumed to be in and returned
4534: # with mm units of measure
1.126 sakharuk 4535: sub recalc {
4536: my $argument = shift;
4537: if (not $argument=~/(mm|cm|in|pc|pt)/) {return $argument.' mm';}
1.132 sakharuk 4538: $argument=~/\s*(\d+\.?\d*)\s*(mm|cm|in|pc|pt)/;
1.126 sakharuk 4539: my $value=$1;
4540: my $units=$2;
4541: if ($units eq 'cm') {
4542: $value*=10;
4543: } elsif ($units eq 'in') {
4544: $value*=25.4;
4545: } elsif ($units eq 'pc') {
4546: $value*=(25.4*12/72.27);
4547: } elsif ($units eq 'pt') {
4548: $value*=(25.4/72.27);
4549: }
4550: return $value.' mm';
1.94 sakharuk 4551: }
1.184 sakharuk 4552:
4553: sub LATEX_length {
4554: my $garbage=shift;
1.206 sakharuk 4555: $garbage=~s/^\s+$//;
4556: $garbage=~s/^\s+(\S.*)/$1/;#space before
4557: $garbage=~s/(.*\S)\s+$/$1/;#space after
4558: $garbage=~s/(\s)+/$1/;#only one space
4559: $garbage=~s/(\\begin{([^\}]+)}|\\end{([^\}]+)})//g;#remove LaTeX \begin{...} and \end{...}
4560: $garbage=~s/(\$\_\{|\$\_|\$\^{|\$\^|\}\$)//g;#remove $_{,$_,$^{,$^,}$
4561: $garbage=~s/([^\\])\$/$1/g;#$
4562: $garbage=~s/(\\ensuremath\{\_\{|\\ensuremath\{\_|\\ensuremath\{\^{|\\ensuremath\{\^|\})//g;#remove \ensuremath{...}
4563: $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 4564: $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;
4565: $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;
4566: $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 4567: $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;
4568: $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;
4569: $garbage=~s/(\\hat{([^}]+)}|\\check{([^}]+)}|\\dot{([^}]+)}|\\breve{([^}]+)}|\\acute{([^}]+)}|\\ddot{([^}]+)}|\\grave{([^}]+)}|\\tilde{([^}]+)}|\\mathring{([^}]+)}|\\bar{([^}]+)}|\\vec{([^}]+)})/$1/g;
4570: #remove some other LaTeX command
4571: $garbage=~s|\\(\w+)\\|\\|g;
4572: $garbage=~s|\\(\w+)(\s*)|$2|g;
4573: $garbage=~s|\+|11|g;
1.184 sakharuk 4574: my $value=length($garbage);
4575: return $value;
4576: }
4577:
1.353 foxr 4578: # Wrap image 'stuff' inside of the LaTeX required to implement
4579: # alignment:
4580: # align_tex_image(align, latex_rendering, image)
4581: # Where:
4582: # align - The HTML alignment specification.
4583: # latex_rendering - rendering hint for latex.
4584: # image - The LaTeX needed to insert the image itsef.
4585: # width,height - dimensions of the image.
1.354 foxr 4586: # Returns:
4587: # The 1/2 wrapped image and the stuff required to close the
4588: # wrappage. This allows e.g. randomlabel to insert more stuff
4589: # into the closure.
1.353 foxr 4590: #
4591: sub align_latex_image {
4592: my ($align, $latex_rendering, $image, $width, $height) = @_;
1.354 foxr 4593: my $currentstring; # The 1/2 wrapped image.
4594: my $closure; # The closure of the wrappage.
1.379 albertel 4595:
4596: # if it's none just return it back
4597: if ($latex_rendering eq 'none') {
4598: return ($image,'');
4599: }
4600:
1.353 foxr 4601: # If there's an alignment specification we need to honor it here.
4602: # For the horizontal alignments, we will also honor the
4603: # value of the latex specfication. The default is parbox,
4604: # and that's used for illegal values too.
4605: #
4606: # Even though we set a default alignment value, the user
4607: # could have given us an illegal value. In that case we
4608: # just use the default alignment of bottom..
1.354 foxr 4609: $currentstring = "\n% figurewrapping \n";
1.353 foxr 4610: if ($align eq "top") {
1.354 foxr 4611: $currentstring .= '\raisebox{-'.$height.'mm}{'.$image;
4612: $closure = '}';
1.353 foxr 4613: } elsif (($align eq "center") || ($align eq "middle")) { # Being kind
4614: my $offset = $height/2;
1.354 foxr 4615: $currentstring .= '\raisebox{-'.$offset.'mm}{'.$image;
4616: $closure = '}';
1.353 foxr 4617: } elsif ($align eq "left") {
4618: if ($latex_rendering eq "parpic") {
1.354 foxr 4619: $currentstring .= '\parpic[l]{'.$image;
4620: $closure = '}';
1.353 foxr 4621: } elsif ($latex_rendering eq "parbox") {
1.354 foxr 4622: $currentstring .= '\begin{minipage}[l]{'.$width.'mm}'
4623: .$image;
4624: $closure = '\end{minipage}';
1.353 foxr 4625: } elsif ($latex_rendering eq "wrapfigure"
4626: || $latex_rendering ne 'none') { # wrapfig render
1.354 foxr 4627: $currentstring .=
1.353 foxr 4628: '\begin{wrapfigure}{l}{'.$width.'mm}'
1.354 foxr 4629: .'\scalebox{1.0}{'.$image;
4630: $closure = '}\end{wrapfigure}';
1.353 foxr 4631: }
4632: } elsif ($align eq "right") {
4633: if ($latex_rendering eq "parpic") {
1.354 foxr 4634: $currentstring .= '\parpic[r]{'.$image;
4635: $closure = '}';
1.353 foxr 4636: } elsif ($latex_rendering eq "parbox") {
1.354 foxr 4637: $currentstring .= '\begin{minipage}[r]{'.$width.'mm}'
4638: .$image;
4639: $closure = '\end{minipage}';
1.353 foxr 4640: } elsif ($latex_rendering eq "wrapfigure"
4641: || $latex_rendering ne 'none') { # wrapfig render
1.354 foxr 4642: $currentstring .=
1.353 foxr 4643: '\begin{wrapfigure}{r}{'.$width.'mm}'
1.354 foxr 4644: .'\scalebox{1.0}{'.$image;
4645: $closure = '}\end{wrapfigure}';
1.353 foxr 4646: }
4647: } else { # Bottom is also default.
4648: # $currentstring = '\raisebox{'.$height.'mm}{'.$image.'}';
1.354 foxr 4649: $currentstring .= "{$image";
4650: $closure = '}';
1.353 foxr 4651: }
1.354 foxr 4652: $currentstring .= "\n% end wrappage\n";
4653: $closure = "\n% Begin closure\n".$closure."\n% End closure\n";
4654: return ($currentstring, $closure);
1.353 foxr 4655: }
1.184 sakharuk 4656:
1.287 foxr 4657: # is_inside_of $tagstack $tag
4658: # This sub returns true if the current state of Xml processing
4659: # is inside of the tag.
4660: # Parameters:
4661: # tagstack - The tagstack from the parser.
4662: # tag - The tag (without the <>'s.).
4663: # Sample usage:
4664: # if (is_inside_of($tagstack "table")) {
4665: # # I'm in a table....
4666: # }
4667: sub is_inside_of {
4668: my ($tagstack, $tag) = @_;
4669: my @stack = @$tagstack;
4670: for (my $i = ($#stack - 1); $i >= 0; $i--) {
4671: if ($stack[$i] eq $tag) {
4672: return 1;
4673: }
4674: }
4675: return 0;
4676: }
1.184 sakharuk 4677:
1.94 sakharuk 4678:
1.1 sakharuk 4679: 1;
4680: __END__
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