Annotation of loncom/xml/londefdef.pm, revision 1.302.2.5
1.1 sakharuk 1: # The LearningOnline Network with CAPA
2: # Tags Default Definition Module
3: #
1.302.2.5! albertel 4: # $Id: londefdef.pm,v 1.302.2.4 2006/03/29 22:54:10 albertel Exp $
1.41 sakharuk 5: #
1.34 www 6: #
7: # Copyright Michigan State University Board of Trustees
8: #
9: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
10: #
11: # LON-CAPA is free software; you can redistribute it and/or modify
12: # it under the terms of the GNU General Public License as published by
13: # the Free Software Foundation; either version 2 of the License, or
14: # (at your option) any later version.
15: #
16: # LON-CAPA is distributed in the hope that it will be useful,
17: # but WITHOUT ANY WARRANTY; without even the implied warranty of
18: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19: # GNU General Public License for more details.
20: #
21: # You should have received a copy of the GNU General Public License
22: # along with LON-CAPA; if not, write to the Free Software
23: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24: #
25: # /home/httpd/html/adm/gpl.txt
26: #
27: # http://www.lon-capa.org/
1.156 sakharuk 28: ## Copyright for TtHfunc and TtMfunc by Ian Hutchinson.
1.34 www 29: # TtHfunc and TtMfunc (the "Code") may be compiled and linked into
30: # binary executable programs or libraries distributed by the
31: # Michigan State University (the "Licensee"), but any binaries so
32: # distributed are hereby licensed only for use in the context
33: # of a program or computational system for which the Licensee is the
34: # primary author or distributor, and which performs substantial
35: # additional tasks beyond the translation of (La)TeX into HTML.
36: # The C source of the Code may not be distributed by the Licensee
37: # to any other parties under any circumstances.
38: #
1.1 sakharuk 39:
1.2 albertel 40: package Apache::londefdef;
1.1 sakharuk 41:
1.267 albertel 42: use Apache::lonnet;
1.1 sakharuk 43: use strict;
1.124 sakharuk 44: use Apache::lonxml;
1.57 sakharuk 45: use Apache::File();
1.70 sakharuk 46: use Image::Magick;
1.118 www 47: use Apache::lonmenu();
48: use Apache::lonmeta();
1.187 albertel 49: use Apache::Constants qw(:common);
1.282 foxr 50: use File::Basename;
1.302 foxr 51: # use Data::Dumper;
1.160 sakharuk 52:
1.38 harris41 53: BEGIN {
1.15 sakharuk 54:
1.135 sakharuk 55: &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 56:
1.188 albertel 57: }
58:
1.294 foxr 59: #
60: # Dumps all elements of the table structure.
61: # Need this 'cause evidently when given an array, Data::Dumper only seems
62: # to dump element 0.
63: #
1.302 foxr 64: #sub debug_dump_table {
65: # my $lastrow = $#Apache::londefdef::table;
66: # &Apache::lonnet::logthis("Dumping table: Last row index: $lastrow");
67: # my $row;
68: # for ($row =0; $row <= $lastrow; $row++ ) {
69: # my $text = Dumper($Apache::londefdef::table[$row]);
70: # &Apache::lonnet::logthis("table [ $row ]".$text);
71: #
72: # }
73: #}
1.188 albertel 74: sub initialize_londefdef {
75: $Apache::londefdef::TD_redirection=0;
76: @Apache::londefdef::table = ();
77: $Apache::londefdef::select=0;
1.243 albertel 78: undef(@Apache::londefdef::description);
79: @Apache::londefdef::DD=(0);
80: @Apache::londefdef::DT=(0);
1.244 albertel 81: @Apache::londefdef::seenDT=(0);
1.238 albertel 82: $Apache::londefdef::list_index=0;
1.3 sakharuk 83: }
1.1 sakharuk 84:
1.35 sakharuk 85: #======================= TAG SUBROUTINES =====================
1.8 sakharuk 86: #-- <output>
1.21 albertel 87: sub start_output {
1.122 albertel 88: my ($target) = @_;
89: if ($target eq 'meta') { $Apache::lonxml::metamode--; }
90: return '';
1.21 albertel 91: }
92: sub end_output {
1.122 albertel 93: my ($target) = @_;
94: if ($target eq 'meta') { $Apache::lonxml::metamode++; }
95: return '';
1.21 albertel 96: }
1.4 sakharuk 97: #-- <m> tag
1.33 albertel 98: sub start_m {
1.190 albertel 99: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 100: my $currentstring = '';
1.193 albertel 101: my $inside = &Apache::lonxml::get_all_text_unbalanced("/m",$parser);
1.191 albertel 102: if ($target eq 'web' || $target eq 'analyze') {
1.122 albertel 103: &Apache::lonxml::debug("M is starting with:$inside:");
104: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
105: if ($eval eq 'on') {
106: $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
107: #&Apache::lonxml::debug("M is evaulated to:$inside:");
108: }
1.276 albertel 109: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
110: $currentstring = &Apache::lontexconvert::converted(\$inside,$display);
1.122 albertel 111: if ($Apache::lontexconvert::errorstring) {
112: &Apache::lonxml::warning("tth error: ".
113: $Apache::lontexconvert::errorstring);
114: $Apache::lontexconvert::errorstring='';
115: }
116: #&Apache::lonxml::debug("M is ends with:$currentstring:");
1.178 albertel 117: $Apache::lonxml::post_evaluate=0;
1.122 albertel 118: } elsif ($target eq 'tex') {
1.190 albertel 119: $currentstring = $inside;
1.178 albertel 120: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
121: if ($eval eq 'on') {
122: $currentstring=&Apache::run::evaluate($currentstring,$safeeval,$$parstack[-1]);
123: }
1.122 albertel 124: if ($currentstring=~/^(\s*\\\\\s*)*$/) {$currentstring = ' \vskip 0 mm ';}
1.257 albertel 125: # detect simple math mode entry exits, and convert them
126: # to use \ensuremath
127: if ($currentstring=~/^\s*\$[^\$].*[^\$]\$\s*$/) {
1.293 albertel 128: $currentstring=~s/^(\s*)\$/$1/;
129: $currentstring=~s/\$(\s*)$/$1/;
1.257 albertel 130: $currentstring='\ensuremath{'.$currentstring.'}';
131: }
1.178 albertel 132: $Apache::lonxml::post_evaluate=0;
1.122 albertel 133: }
134: return $currentstring;
1.33 albertel 135: }
1.122 albertel 136:
1.33 albertel 137: sub end_m {
1.122 albertel 138: my ($target,$token) = @_;
139: my $currentstring = '';
1.204 albertel 140: if ($target eq 'tex') {
1.122 albertel 141: $currentstring = "";
142: }
143: return $currentstring;
1.33 albertel 144: }
1.110 albertel 145:
146: sub start_tthoption {
1.299 albertel 147: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 148: my $result;
1.302.2.4 albertel 149: if ($target eq 'web' || $target eq 'webgrade') {
1.299 albertel 150: my $inside = &Apache::lonxml::get_all_text("/tthoption",$parser,
151: $style);
1.122 albertel 152: $inside=~s/^\s*//;
1.267 albertel 153: if ($env{'browser.mathml'}) {
1.122 albertel 154: &tth::ttmoptions($inside);
155: } else {
156: &tth::tthoptions($inside);
157: }
158: }
159: return $result;
1.110 albertel 160: }
161:
162: sub end_tthoption {
1.122 albertel 163: my ($target,$token) = @_;
164: my $result;
165: return $result;
1.110 albertel 166: }
167:
1.181 sakharuk 168: #-- <html> tag (end tag optional)
1.100 albertel 169: sub start_html {
170: my ($target,$token) = @_;
171: my $currentstring = '';
1.267 albertel 172: my $options=$env{'course.'.$env{'request.course.id'}.'.tthoptions'};
1.196 albertel 173: &Apache::lontexconvert::init_tth();
1.269 albertel 174: if ($target eq 'web' || $target eq 'edit' || $target eq 'webgrade' ) {
1.242 albertel 175: $currentstring = &Apache::lonxml::xmlbegin();
1.100 albertel 176: } elsif ($target eq 'tex') {
1.246 albertel 177: $currentstring .= '\documentclass[letterpaper]{article}';
1.267 albertel 178: if (($env{'form.latex_type'}=~'batchmode') ||
179: (!$env{'request.role.adv'})) {$currentstring .='\batchmode';}
1.217 sakharuk 180: $currentstring .= '\newcommand{\keephidden}[1]{}'.
181: '\renewcommand{\deg}{$^{\circ}$}'.
182: '\usepackage{longtable}'.
183: '\usepackage{textcomp}'.
184: '\usepackage{makeidx}'.
185: '\usepackage[dvips]{graphicx}'.
1.286 foxr 186: '\usepackage{wrapfig}'.
1.248 foxr 187: '\usepackage{picins}'.
1.217 sakharuk 188: '\usepackage{epsfig}'.
189: '\usepackage{calc}'.
190: '\usepackage{amsmath}'.
191: '\usepackage{amssymb}'.
192: '\usepackage{amsfonts}'.
193: '\usepackage{amsthm}'.
194: '\usepackage{amscd}'.
195: '\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}}'.
196: '\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 197: }
198: return $currentstring;
199: }
1.122 albertel 200:
201: sub end_html {
1.232 sakharuk 202: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 203: my $currentstring = '';
1.302.2.5! albertel 204: if ($target eq 'web' || $target eq 'webgrade') {
1.259 albertel 205: $currentstring = '</html>';
1.122 albertel 206: }
207: return $currentstring;
208: }
209:
1.181 sakharuk 210: #-- <head> tag (end tag optional)
1.122 albertel 211: sub start_head {
212: my ($target,$token) = @_;
213: my $currentstring = '';
1.302.2.5! albertel 214: if ($target eq 'web' || $target eq 'webgrade') {
1.242 albertel 215: $currentstring = $token->[4].&Apache::lonxml::fontsettings();
1.122 albertel 216: }
217: return $currentstring;
218: }
219:
220: sub end_head {
221: my ($target,$token) = @_;
222: my $currentstring = '';
1.302.2.5! albertel 223: if (($target eq 'web' && $env{'request.state'} eq 'published') ||
! 224: ($target eq 'webgrade' && $env{'request.state'} eq 'published')) {
1.122 albertel 225: $currentstring = &Apache::lonmenu::registerurl(undef,$target).
226: $token->[2];
227: }
228: return $currentstring;
229: }
230:
1.181 sakharuk 231: #-- <map> tag (end tag required)
1.122 albertel 232: sub start_map {
233: my ($target,$token) = @_;
234: my $currentstring = '';
1.302.2.4 albertel 235: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 236: $currentstring = $token->[4];
237: }
238: return $currentstring;
239: }
240:
241: sub end_map {
242: my ($target,$token) = @_;
243: my $currentstring = '';
1.302.2.4 albertel 244: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 245: $currentstring = $token->[2];
246: }
247: return $currentstring;
248: }
249:
1.181 sakharuk 250: #-- <select> tag (end tag required)
1.122 albertel 251: sub start_select {
252: my ($target,$token) = @_;
253: my $currentstring = '';
1.302.2.4 albertel 254: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 255: $currentstring = $token->[4];
1.181 sakharuk 256: } elsif ($target eq 'tex') {
257: $Apache::londefdef::select=0;
258: }
1.122 albertel 259: return $currentstring;
260: }
261:
262: sub end_select {
263: my ($target,$token) = @_;
264: my $currentstring = '';
1.302.2.4 albertel 265: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 266: $currentstring = $token->[2];
267: }
268: return $currentstring;
269: }
270:
1.181 sakharuk 271: #-- <option> tag (end tag optional)
1.122 albertel 272: sub start_option {
1.181 sakharuk 273: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 274: my $currentstring = '';
1.302.2.4 albertel 275: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 276: $currentstring = $token->[4];
1.181 sakharuk 277: } elsif ($target eq 'tex') {
278: $Apache::londefdef::select++;
279: if ($Apache::londefdef::select == 1) {
280: $currentstring='\noindent\fbox{'.&Apache::lonxml::get_param('value',$parstack,$safeeval).'}\keephidden{';
281: } else {
282: $currentstring='\keephidden{';
283: }
284: }
1.122 albertel 285: return $currentstring;
286: }
287:
288: sub end_option {
289: my ($target,$token) = @_;
290: my $currentstring = '';
1.302.2.4 albertel 291: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 292: $currentstring = $token->[2];
1.181 sakharuk 293: } elsif ($target eq 'tex') {
294: $currentstring='}';
295: }
1.122 albertel 296: return $currentstring;
297: }
298:
1.181 sakharuk 299: #-- <input> tag (end tag forbidden)
1.122 albertel 300: sub start_input {
301: my ($target,$token) = @_;
302: my $currentstring = '';
1.302.2.4 albertel 303: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 304: $currentstring = $token->[4];
305: }
306: return $currentstring;
307: }
308:
309: sub end_input {
310: my ($target,$token) = @_;
311: my $currentstring = '';
1.302.2.4 albertel 312: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 313: $currentstring = $token->[2];
314: }
315: return $currentstring;
316: }
317:
1.181 sakharuk 318: #-- <textarea> tag (end tag required)
1.122 albertel 319: sub start_textarea {
320: my ($target,$token) = @_;
321: my $currentstring = '';
1.302.2.4 albertel 322: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 323: $currentstring = $token->[4];
324: }
325: return $currentstring;
326: }
327:
328: sub end_textarea {
329: my ($target,$token) = @_;
330: my $currentstring = '';
1.302.2.4 albertel 331: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 332: $currentstring = $token->[2];
333: }
334: return $currentstring;
335: }
336:
1.181 sakharuk 337: #-- <form> tag (end tag required)
1.122 albertel 338: sub start_form {
339: my ($target,$token) = @_;
340: my $currentstring = '';
1.302.2.4 albertel 341: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 342: $currentstring = $token->[4];
343: }
344: return $currentstring;
345: }
346:
347: sub end_form {
348: my ($target,$token) = @_;
349: my $currentstring = '';
1.302.2.4 albertel 350: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 351: $currentstring = $token->[2];
352: }
353: return $currentstring;
354: }
355:
1.181 sakharuk 356: #-- <title> tag (end tag required)
1.122 albertel 357: sub start_title {
358: my ($target,$token) = @_;
359: my $currentstring = '';
1.302.2.5! albertel 360: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 361: $currentstring = $token->[4];
362: } elsif ($target eq 'tex') {
1.166 sakharuk 363: $currentstring .= '\keephidden{Title of the document: '
1.122 albertel 364: }
365: if ($target eq 'meta') {
366: $currentstring='<title>';
1.185 albertel 367: &start_output($target);
1.122 albertel 368: }
369: return $currentstring;
370: }
371:
372: sub end_title {
373: my ($target,$token) = @_;
374: my $currentstring = '';
1.302.2.5! albertel 375: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 376: $currentstring = $token->[2];
377: } elsif ($target eq 'tex') {
378: $currentstring .= '}';
379: }
380: if ($target eq 'meta') {
1.185 albertel 381: &end_output($target);
1.122 albertel 382: $currentstring='</title>';
383: }
384: return $currentstring;
385: }
386:
1.181 sakharuk 387: #-- <meta> tag (end tag forbidden)
1.122 albertel 388: sub start_meta {
1.299 albertel 389: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 390: my $currentstring = '';
1.302.2.4 albertel 391: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 392: my $args='';
393: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
394: if ($args eq '') {
1.299 albertel 395: &Apache::lonxml::get_all_text("/meta",$parser,$style);
1.122 albertel 396: } else {
397: $currentstring = $token->[4];
1.1 sakharuk 398: }
1.135 sakharuk 399: } elsif ($target eq 'meta') {
1.122 albertel 400: unless (&Apache::lonxml::get_param
401: ('http-equiv',$parstack,$safeeval,undef,1)) {
402: my $name=$token->[2]->{'name'};
403: $name=~tr/A-Z/a-z/;
404: $name=~s/\s/\_/gs;
405: $name=~s/\W//gs;
406: if ($name) {
1.154 www 407: $currentstring='<'.$name;
408: my $display=&Apache::lonxml::get_param
409: ('display',$parstack,$safeeval,undef,1);
410: if ($display) {
411: $display=~s/\"/\'/g;
412: $currentstring.=' display="'.$display.'"';
413: }
414: $currentstring.='>'.
1.122 albertel 415: &Apache::lonxml::get_param
416: ('content',$parstack,$safeeval,undef,1).
1.135 sakharuk 417: '</'.$name.'>';
1.1 sakharuk 418: }
1.154 www 419: my $display=&Apache::lonxml::get_param
420: ('display',$parstack,$safeeval,undef,1);
421: if ($display) {
1.204 albertel 422: $display=&HTML::Entities::encode($display,'<>&"');
1.154 www 423: $currentstring.='<'.$name.'.display>'.$display.
424: '</'.$name.'.display>';
425: }
1.1 sakharuk 426: }
1.135 sakharuk 427: } elsif ($target eq 'tex') {
1.151 sakharuk 428: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
429: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
430: if ((not defined $content) && (not defined $name)) {
431: &Apache::lonxml::startredirection();
432: }
1.122 albertel 433: }
434: return $currentstring;
435: }
436:
437: sub end_meta {
1.165 albertel 438: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 439: my $currentstring = '';
1.302.2.4 albertel 440: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 441: my $args='';
442: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
443: if ($args ne '') {
1.121 www 444: $currentstring = $token->[4];
1.122 albertel 445: }
1.135 sakharuk 446: } elsif ($target eq 'tex') {
1.165 albertel 447: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
448: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
1.164 albertel 449: if ((not defined $content) && (not defined $name)) {
1.169 albertel 450: &Apache::lonxml::endredirection();
1.164 albertel 451: }
1.135 sakharuk 452: }
1.122 albertel 453: return $currentstring;
454: }
455:
1.121 www 456: # accessrule
1.122 albertel 457: sub start_accessrule {
1.299 albertel 458: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 459: my $currentstring = '';
460: my $eff=&Apache::lonxml::get_param
461: ('effect',$parstack,$safeeval,undef,1);
462: my $realm=&Apache::lonxml::get_param
463: ('realm',$parstack,$safeeval,undef,1);
1.123 www 464: my $role=&Apache::lonxml::get_param
465: ('role',$parstack,$safeeval,undef,1);
466: $realm=~s/\s+//g;
467: $realm=~s/\//\_/g;
468: $realm=~s/^\_//;
469: $realm=~s/\W/\;/g;
470: $role=~s/\s+//g;
471: $role=~s/\//\_/g;
472: $role=~s/\W/\;/g;
1.122 albertel 473: if ($target eq 'web') {
474: my $args='';
475: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
476: if ($args eq '') {
1.299 albertel 477: &Apache::lonxml::get_all_text("/accessrule",$parser,$style);
1.122 albertel 478: } else {
479: $currentstring = $token->[4];
480: }
481: }
482: if ($target eq 'meta') {
1.123 www 483: $currentstring='<rule>'.$eff.':'.$realm.':'.$role.'</rule>';
1.122 albertel 484: }
485: return $currentstring;
486: }
487:
488: sub end_accessrule {
489: my ($target,$token,$tagstack,$parstack,$parser) = @_;
490: my $currentstring = '';
491: if ($target eq 'web') {
492: my $args='';
493: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
494: if ($args ne '') {
495: $currentstring = $token->[4];
496: }
497: }
498: return $currentstring;
499: }
500:
1.181 sakharuk 501: #-- <body> tag (end tag required)
1.122 albertel 502: sub start_body {
503: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
504: my $currentstring = '';
1.244 albertel 505:
1.302.2.5! albertel 506: if ($target eq 'web' || $target eq 'webgrade') {
1.170 albertel 507: if ($Apache::lonhomework::parsing_a_problem) {
508: &Apache::lonxml::warning("<body> tag found inside of <problem> tag this can cause problems.");
509: return '';
510: }
1.180 albertel 511: if (!$Apache::lonxml::registered &&
1.267 albertel 512: $env{'request.state'} eq 'published') {
1.122 albertel 513: $currentstring.='<head>'.
514: &Apache::lonmenu::registerurl(undef,$target).'</head>';
515: }
1.155 www 516: # Accessibility
1.267 albertel 517: if ($env{'browser.imagesuppress'} eq 'on') {
1.155 www 518: delete($token->[2]->{'background'});
519: }
1.267 albertel 520: if ($env{'browser.fontenhance'} eq 'on') {
1.155 www 521: my $style='';
522: foreach my $key (keys(%{$token->[2]})) {
523: if ($key =~ /^style$/i) {
524: $style.=$token->[2]->{$key}.';';
525: delete($token->[2]->{$key});
526: }
527: }
528: $token->[2]->{'style'}=$style.'; font-size: x-large;';
529: }
1.267 albertel 530: if ($env{'browser.blackwhite'} eq 'on') {
1.155 www 531: delete($token->[2]->{'font'});
532: delete($token->[2]->{'link'});
533: delete($token->[2]->{'alink'});
534: delete($token->[2]->{'vlink'});
535: delete($token->[2]->{'bgcolor'});
536: delete($token->[2]->{'background'});
537: }
538: # Overload loads
1.122 albertel 539: my $onLoad='';
540: foreach my $key (keys(%{$token->[2]})) {
541: if ($key =~ /^onload$/i) {
542: $onLoad.=$token->[2]->{$key}.';';
543: delete($token->[2]->{$key});
1.121 www 544: }
1.122 albertel 545: }
546: $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad;
547: my $onUnload='';
548: foreach my $key (keys(%{$token->[2]})) {
549: if ($key =~ /^onunload$/i) {
550: $onUnload.=$token->[2]->{$key}.';';
551: delete($token->[2]->{$key});
1.121 www 552: }
553: }
1.122 albertel 554: $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().
555: ';'.$onUnload;
556:
1.278 www 557: $currentstring .= '<'.$token->[1];
1.122 albertel 558: foreach (keys %{$token->[2]}) {
559: $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
560: }
1.278 www 561: $currentstring.='>';
1.284 albertel 562: &Apache::lontexconvert::jsMath_reset();
563: if ($env{'environment.texengine'} eq 'jsMath') {
564: $currentstring.=&Apache::lontexconvert::jsMath_header();
565: }
1.267 albertel 566: if ($env{'request.state'} ne 'published') {
1.278 www 567: if ($env{'environment.remote'} eq 'off') {
568: $currentstring.=
569: &Apache::lonmenu::constspaceform().
570: &Apache::lonmenu::menubuttons(1,'web',1);
571: }
1.122 albertel 572: $currentstring.=(<<EDITBUTTON);
1.278 www 573: <form method="post">
574: <input type="submit" name="editmode" accesskey="e" value="Edit" />
575: </form>
1.40 albertel 576: EDITBUTTON
1.122 albertel 577: } else {
578: $currentstring.=&Apache::lonmenu::menubuttons(undef,$target,1);
1.1 sakharuk 579: }
1.201 albertel 580: $currentstring.=&Apache::lonxml::message_location();
1.122 albertel 581: } elsif ($target eq 'tex') {
582: $currentstring = '\begin{document}';
583: }
584: return $currentstring;
585: }
586:
587: sub end_body {
1.259 albertel 588: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 589: my $currentstring = &end_p(); # Close off unclosed <p>
1.302.2.5! albertel 590: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 591: $currentstring .= &Apache::lonxml::xmlend($target,$parser);
1.122 albertel 592: } elsif ($target eq 'tex') {
1.277 foxr 593: $currentstring .= '\strut\newline\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\newline\noindent \end{document}';
1.122 albertel 594: }
595: return $currentstring;
596: }
597:
1.302.2.1 albertel 598: # \begin{center} causes a new paragprah spacing that looks odd inside
599: # of a table cell
600: sub center_correction { return '\vspace*{-6 mm}'; }
1.181 sakharuk 601: #-- <center> tag (end tag required)
1.122 albertel 602: sub start_center {
1.302.2.1 albertel 603: my ($target,$token,$tagstack) = @_;
1.279 foxr 604: my $currentstring = &end_p(); # Close off any prior para.
1.302.2.4 albertel 605: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 606: $currentstring .= $token->[4];
1.122 albertel 607: } elsif ($target eq 'tex') {
1.302.2.1 albertel 608: if (&is_inside_of($tagstack, "table")) {
609: $currentstring .= ¢er_correction();
610: }
1.277 foxr 611: $currentstring .= '\begin{center}';
1.144 sakharuk 612: }
1.122 albertel 613: return $currentstring;
614: }
615:
616: sub end_center {
1.302.2.1 albertel 617: my ($target,$token,$tagstack) = @_;
1.122 albertel 618: my $currentstring = '';
1.302.2.4 albertel 619: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 620: $currentstring = $token->[2];
621: } elsif ($target eq 'tex') {
622: $currentstring = '\end{center}';
1.302.2.1 albertel 623: if (&is_inside_of($tagstack, "table")) {
1.302.2.3 albertel 624: #$currentstring .= ¢er_correction();
1.302.2.1 albertel 625: }
1.144 sakharuk 626: }
1.122 albertel 627: return $currentstring;
628: }
629:
1.181 sakharuk 630: #-- <b> tag (end tag required)
1.279 foxr 631: # NOTE: In TeX mode disables internal <p>
1.122 albertel 632: sub start_b {
633: my ($target,$token) = @_;
634: my $currentstring = '';
1.302.2.4 albertel 635: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 636: $currentstring = $token->[4];
637: } elsif ($target eq 'tex') {
1.279 foxr 638: &disable_para();
639: $currentstring .= '\textbf{';
1.122 albertel 640: }
641: return $currentstring;
642: }
643:
644: sub end_b {
645: my ($target,$token) = @_;
646: my $currentstring = '';
1.302.2.4 albertel 647: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 648: $currentstring = $token->[2];
649: } elsif ($target eq 'tex') {
1.279 foxr 650: &enable_para();
651: $currentstring = '}';
1.122 albertel 652: }
653: return $currentstring;
654: }
1.35 sakharuk 655:
1.181 sakharuk 656: #-- <strong> tag (end tag required)
1.279 foxr 657: # NOTE: in TeX mode disables internal <p>
1.122 albertel 658: sub start_strong {
659: my ($target,$token) = @_;
660: my $currentstring = '';
1.302.2.4 albertel 661: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 662: $currentstring = $token->[4];
663: } elsif ($target eq 'tex') {
1.279 foxr 664: &disable_para();
1.122 albertel 665: $currentstring = '\textbf{';
666: }
667: return $currentstring;
668: }
669:
670: sub end_strong {
671: my ($target,$token) = @_;
672: my $currentstring = '';
1.302.2.4 albertel 673: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 674: $currentstring = $token->[2];
675: } elsif ($target eq 'tex') {
1.279 foxr 676: &enable_para();
1.122 albertel 677: $currentstring = '}';
1.144 sakharuk 678: }
1.122 albertel 679: return $currentstring;
680: }
681:
1.181 sakharuk 682: #-- <h1> tag (end tag required)
1.122 albertel 683: sub start_h1 {
1.125 sakharuk 684: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 685: my $currentstring = &end_p(); # Close off any prior para.
1.302.2.4 albertel 686: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 687: $currentstring .= $token->[4];
688: } elsif ($target eq 'tex') {
1.125 sakharuk 689: my $pre;
1.199 albertel 690: my $align=lc(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1));
1.212 sakharuk 691: if ($align eq 'center') {
1.125 sakharuk 692: $pre='\begin{center}';
693: } elsif ($align eq 'left') {
694: $pre='\rlap{';
695: } elsif ($align eq 'right') {
696: $pre=' \hfill \llap{';
697: }
698: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
699: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 700: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 701: } elsif ($target eq 'meta') {
1.277 foxr 702: $currentstring.='<subject>';
1.185 albertel 703: &start_output($target);
1.122 albertel 704: }
705: return $currentstring;
706: }
707:
708: sub end_h1 {
1.125 sakharuk 709: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 710: my $currentstring = '';
1.302.2.4 albertel 711: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 712: $currentstring .= $token->[2];
713: } elsif ($target eq 'tex') {
1.212 sakharuk 714: my $post='\vskip 0 mm ';
1.125 sakharuk 715: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 716: if ($align eq 'center') {
1.125 sakharuk 717: $post='\end{center}';
718: } elsif ($align eq 'left') {
719: $post='} \hfill'.'\vskip 0 mm ';
720: } elsif ($align eq 'right') {
721: $post='}'.'\vskip 0 mm ';
722: }
723: $currentstring .= '}}'.$post;
1.122 albertel 724: } elsif ($target eq 'meta') {
1.185 albertel 725: &end_output($target);
1.122 albertel 726: $currentstring='</subject>';
727: }
728: return $currentstring;
729: }
730:
1.35 sakharuk 731: #-- <h2> tag
1.122 albertel 732: sub start_h2 {
1.125 sakharuk 733: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 734: my $currentstring = &end_p(); # Close off any prior para.
1.302.2.4 albertel 735: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 736: $currentstring .= $token->[4];
737: } elsif ($target eq 'tex') {
1.125 sakharuk 738: my $pre;
739: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 740: if ($align eq 'center') {
1.125 sakharuk 741: $pre='\begin{center}';
742: } elsif ($align eq 'left') {
743: $pre='\rlap{';
744: } elsif ($align eq 'right') {
745: $pre=' \hfill \llap{';
746: }
747: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
748: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 749: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 750: }
751: return $currentstring;
752: }
753:
754: sub end_h2 {
1.125 sakharuk 755: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 756: my $currentstring = '';
1.302.2.4 albertel 757: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 758: $currentstring .= $token->[2];
759: } elsif ($target eq 'tex') {
1.212 sakharuk 760: my $post='\vskip 0 mm ';
1.125 sakharuk 761: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 762: if ($align eq 'center') {
1.125 sakharuk 763: $post='\end{center}';
764: } elsif ($align eq 'left') {
765: $post='} \hfill'.'\vskip 0 mm ';
766: } elsif ($align eq 'right') {
767: $post='}'.'\vskip 0 mm ';
768: }
769: $currentstring .= '}}'.$post;
1.122 albertel 770: }
771: return $currentstring;
772: }
773:
1.35 sakharuk 774: #-- <h3> tag
1.122 albertel 775: sub start_h3 {
1.125 sakharuk 776: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 777: my $currentstring = &end_p(); # Close off any prior para.
1.302.2.4 albertel 778: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 779: $currentstring .= $token->[4];
780: } elsif ($target eq 'tex') {
1.125 sakharuk 781: my $pre;
782: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 783: if ($align eq 'center') {
1.125 sakharuk 784: $pre='\begin{center}';
785: } elsif ($align eq 'left') {
786: $pre='\rlap{';
787: } elsif ($align eq 'right') {
788: $pre=' \hfill \llap{';
789: }
790: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
791: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 792: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 793: }
794: return $currentstring;
795: }
796:
797: sub end_h3 {
1.125 sakharuk 798: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 799: my $currentstring = '';
1.302.2.4 albertel 800: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 801: $currentstring .= $token->[2];
802: } elsif ($target eq 'tex') {
1.212 sakharuk 803: my $post='\vskip 0 mm ';
1.125 sakharuk 804: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 805: if ($align eq 'center') {
1.125 sakharuk 806: $post='\end{center}';
807: } elsif ($align eq 'left') {
808: $post='} \hfill'.'\vskip 0 mm ';
809: } elsif ($align eq 'right') {
810: $post='}'.'\vskip 0 mm ';
811: }
812: $currentstring .= '}}'.$post;
1.122 albertel 813: }
814: return $currentstring;
815: }
816:
1.35 sakharuk 817: #-- <h4> tag
1.122 albertel 818: sub start_h4 {
1.125 sakharuk 819: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 820: my $currentstring = &end_p(); # Close off any prior para.
1.302.2.4 albertel 821: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 822: $currentstring .= $token->[4];
823: } elsif ($target eq 'tex') {
1.125 sakharuk 824: my $pre;
825: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 826: if ($align eq 'center') {
1.125 sakharuk 827: $pre='\begin{center}';
828: } elsif ($align eq 'left') {
829: $pre='\rlap{';
830: } elsif ($align eq 'right') {
831: $pre=' \hfill \llap{';
832: }
833: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
834: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 835: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 836: }
837: return $currentstring;
838: }
839:
840: sub end_h4 {
1.125 sakharuk 841: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 842: my $currentstring = '';
1.302.2.4 albertel 843: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 844: $currentstring .= $token->[2];
845: } elsif ($target eq 'tex') {
1.212 sakharuk 846: my $post='\vskip 0 mm ';
1.125 sakharuk 847: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 848: if ($align eq 'center') {
1.125 sakharuk 849: $post='\end{center}';
850: } elsif ($align eq 'left') {
851: $post='} \hfill'.'\vskip 0 mm ';
852: } elsif ($align eq 'right') {
853: $post='}'.'\vskip 0 mm ';
854: }
855: $currentstring .= '}}'.$post;
1.122 albertel 856: }
857: return $currentstring;
858: }
859:
1.35 sakharuk 860: #-- <h5> tag
1.122 albertel 861: sub start_h5 {
1.125 sakharuk 862: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 863: my $currentstring = &end_p(); # Close off any prior paras.
1.302.2.4 albertel 864: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 865: $currentstring .= $token->[4];
866: } elsif ($target eq 'tex') {
1.125 sakharuk 867: my $pre;
868: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 869: if ($align eq 'center') {
1.125 sakharuk 870: $pre='\begin{center}';
871: } elsif ($align eq 'left') {
872: $pre='\rlap{';
873: } elsif ($align eq 'right') {
874: $pre=' \hfill \llap{';
875: }
876: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
877: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 878: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 879: }
880: return $currentstring;
881: }
882:
883: sub end_h5 {
1.125 sakharuk 884: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 885: my $currentstring = '';
1.302.2.4 albertel 886: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 887: $currentstring .= $token->[2];
888: } elsif ($target eq 'tex') {
1.212 sakharuk 889: my $post='\vskip 0 mm ';
1.125 sakharuk 890: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 891: if ($align eq 'center') {
1.125 sakharuk 892: $post='\end{center}';
893: } elsif ($align eq 'left') {
894: $post='} \hfill'.'\vskip 0 mm ';
895: } elsif ($align eq 'right') {
896: $post='}'.'\vskip 0 mm ';
897: }
898: $currentstring .= '}}'.$post;
1.122 albertel 899: }
900: return $currentstring;
901: }
902:
1.35 sakharuk 903: #-- <h6> tag
1.122 albertel 904: sub start_h6 {
1.125 sakharuk 905: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 906: my $currentstring = &end_p(); # Close off any prior paras.
1.302.2.4 albertel 907: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 908: $currentstring .= $token->[4];
909: } elsif ($target eq 'tex') {
1.125 sakharuk 910: my $pre;
911: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 912: if ($align eq 'center') {
1.125 sakharuk 913: $pre='\begin{center}';
914: } elsif ($align eq 'left') {
915: $pre='\rlap{';
916: } elsif ($align eq 'right') {
917: $pre=' \hfill \llap{';
918: }
919: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
920: if (not defined $TeXsize) {$TeXsize="large";}
1.275 foxr 921: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 922: }
923: return $currentstring;
924: }
925:
926: sub end_h6 {
1.125 sakharuk 927: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 928: my $currentstring = '';
1.302.2.4 albertel 929: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 930: $currentstring .= $token->[2];
931: } elsif ($target eq 'tex') {
1.212 sakharuk 932: my $post='\vskip 0 mm ';
1.125 sakharuk 933: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 934: if ($align eq 'center') {
1.125 sakharuk 935: $post='\end{center}';
936: } elsif ($align eq 'left') {
937: $post='} \hfill'.'\vskip 0 mm ';
938: } elsif ($align eq 'right') {
939: $post='}'.'\vskip 0 mm ';
940: }
941: $currentstring .= '}}'.$post;
1.122 albertel 942: }
943: return $currentstring;
944: }
945:
1.181 sakharuk 946: #--- <cite> tag (end tag required)
1.122 albertel 947: sub start_cite {
948: my ($target,$token) = @_;
949: my $currentstring = '';
1.302.2.4 albertel 950: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 951: $currentstring .= $token->[4];
952: } elsif ($target eq 'tex') {
1.179 sakharuk 953: $currentstring .= '\textit{';
1.144 sakharuk 954: }
1.122 albertel 955: return $currentstring;
956: }
957:
958: sub end_cite {
959: my ($target,$token) = @_;
960: my $currentstring = '';
1.302.2.4 albertel 961: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 962: $currentstring .= $token->[2];
963: } elsif ($target eq 'tex') {
1.179 sakharuk 964: $currentstring .= '}';
1.144 sakharuk 965: }
1.122 albertel 966: return $currentstring;
967: }
968:
1.181 sakharuk 969: #-- <i> tag (end tag required)
1.122 albertel 970: sub start_i {
971: my ($target,$token) = @_;
972: my $currentstring = '';
1.302.2.4 albertel 973: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 974: $currentstring .= $token->[4];
975: } elsif ($target eq 'tex') {
976: $currentstring .= '\textit{';
1.144 sakharuk 977: }
1.122 albertel 978: return $currentstring;
979: }
980:
981: sub end_i {
982: my ($target,$token) = @_;
983: my $currentstring = '';
1.302.2.4 albertel 984: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 985: $currentstring .= $token->[2];
986: } elsif ($target eq 'tex') {
987: $currentstring .= '}';
988: }
989: return $currentstring;
990: }
991:
1.181 sakharuk 992: #-- <address> tag (end tag required)
1.122 albertel 993: sub start_address {
994: my ($target,$token) = @_;
995: my $currentstring = '';
1.302.2.4 albertel 996: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 997: $currentstring .= $token->[4];
998: } elsif ($target eq 'tex') {
1.179 sakharuk 999: $currentstring .= '\textit{';
1.144 sakharuk 1000: }
1.122 albertel 1001: return $currentstring;
1002: }
1003:
1004: sub end_address {
1005: my ($target,$token) = @_;
1006: my $currentstring = '';
1.302.2.4 albertel 1007: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1008: $currentstring .= $token->[2];
1009: } elsif ($target eq 'tex') {
1.179 sakharuk 1010: $currentstring .= '}';
1.122 albertel 1011: }
1012: return $currentstring;
1013: }
1014:
1.181 sakharuk 1015: #-- <dfn> tag (end tag required)
1.122 albertel 1016: sub start_dfn {
1017: my ($target,$token) = @_;
1018: my $currentstring = '';
1.302.2.4 albertel 1019: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1020: $currentstring .= $token->[4];
1021: } elsif ($target eq 'tex') {
1.179 sakharuk 1022: $currentstring .= '\textit{';
1.122 albertel 1023: }
1024: return $currentstring;
1025: }
1026:
1027: sub end_dfn {
1028: my ($target,$token) = @_;
1029: my $currentstring = '';
1.302.2.4 albertel 1030: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1031: $currentstring .= $token->[2];
1032: } elsif ($target eq 'tex') {
1.179 sakharuk 1033: $currentstring .= '}';
1.144 sakharuk 1034: }
1.122 albertel 1035: return $currentstring;
1036: }
1037:
1.181 sakharuk 1038: #-- <tt> tag (end tag required)
1.122 albertel 1039: sub start_tt {
1040: my ($target,$token) = @_;
1041: my $currentstring = '';
1.302.2.4 albertel 1042: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1043: $currentstring .= $token->[4];
1044: } elsif ($target eq 'tex') {
1045: $currentstring .= '\texttt{';
1.144 sakharuk 1046: }
1.122 albertel 1047: return $currentstring;
1048: }
1049:
1050: sub end_tt {
1051: my ($target,$token) = @_;
1052: my $currentstring = '';
1.302.2.4 albertel 1053: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1054: $currentstring .= $token->[2];
1055: } elsif ($target eq 'tex') {
1056: $currentstring .= '}';
1057: }
1058: return $currentstring;
1059: }
1060:
1.181 sakharuk 1061: #-- <kbd> tag (end tag required)
1.122 albertel 1062: sub start_kbd {
1063: my ($target,$token) = @_;
1064: my $currentstring = '';
1.302.2.4 albertel 1065: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1066: $currentstring .= $token->[4];
1067: } elsif ($target eq 'tex') {
1.179 sakharuk 1068: $currentstring .= '\texttt{';
1.144 sakharuk 1069: }
1.122 albertel 1070: return $currentstring;
1071: }
1072:
1073: sub end_kbd {
1074: my ($target,$token) = @_;
1075: my $currentstring = '';
1.302.2.4 albertel 1076: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1077: $currentstring .= $token->[2];
1078: } elsif ($target eq 'tex') {
1.179 sakharuk 1079: $currentstring .= '}';
1.144 sakharuk 1080: }
1.122 albertel 1081: return $currentstring;
1082: }
1083:
1.181 sakharuk 1084: #-- <code> tag (end tag required)
1.122 albertel 1085: sub start_code {
1086: my ($target,$token) = @_;
1087: my $currentstring = '';
1.302.2.4 albertel 1088: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1089: $currentstring .= $token->[4];
1090: } elsif ($target eq 'tex') {
1091: $currentstring .= '\texttt{';
1092: }
1093: return $currentstring;
1094: }
1095:
1096: sub end_code {
1097: my ($target,$token) = @_;
1098: my $currentstring = '';
1.302.2.4 albertel 1099: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1100: $currentstring .= $token->[2];
1101: } elsif ($target eq 'tex') {
1102: $currentstring .= '}';
1103: }
1104: return $currentstring;
1105: }
1106:
1.181 sakharuk 1107: #-- <em> tag (end tag required)
1.122 albertel 1108: sub start_em {
1109: my ($target,$token) = @_;
1110: my $currentstring = '';
1.302.2.4 albertel 1111: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1112: $currentstring .= $token->[4];
1113: } elsif ($target eq 'tex') {
1114: $currentstring .= '\emph{';
1.144 sakharuk 1115: }
1.122 albertel 1116: return $currentstring;
1117: }
1118:
1119: sub end_em {
1120: my ($target,$token) = @_;
1121: my $currentstring = '';
1.302.2.4 albertel 1122: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1123: $currentstring .= $token->[2];
1124: } elsif ($target eq 'tex') {
1125: $currentstring .= '}';
1.144 sakharuk 1126: }
1.122 albertel 1127: return $currentstring;
1128: }
1129:
1.181 sakharuk 1130: #-- <q> tag (end tag required)
1.122 albertel 1131: sub start_q {
1132: my ($target,$token) = @_;
1133: my $currentstring = '';
1.302.2.4 albertel 1134: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1135: $currentstring .= $token->[4];
1136: } elsif ($target eq 'tex') {
1.179 sakharuk 1137: $currentstring .= '\emph{';
1.122 albertel 1138: }
1139: return $currentstring;
1140: }
1141:
1142: sub end_q {
1143: my ($target,$token) = @_;
1144: my $currentstring = '';
1.302.2.4 albertel 1145: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1146: $currentstring .= $token->[2];
1147: } elsif ($target eq 'tex') {
1.179 sakharuk 1148: $currentstring .= '}';
1.144 sakharuk 1149: }
1.122 albertel 1150: return $currentstring;
1151: }
1152:
1.277 foxr 1153: # <p> is a bit strange since it does not require a closing </p>
1154: # However in latex, we must often output closing stuff to end
1155: # environments and {}'s etc. Therefore we do all the work
1156: # of figuring out the ending strings in the start tag processing,
1157: # and provide a mechanism to output the stop text external
1158: # to tag processing.
1159: #
1160: {
1161:
1162: my $closing_string = ''; # String required to close <p>
1163:
1.279 foxr 1164: # Some tags are <p> fragile meaning that <p> inside of them
1165: # does not work within TeX mode. This is managed via the
1166: # counter below:
1167: #
1168:
1169: my $para_disabled = 0;
1170:
1171: sub disable_para {
1172: $para_disabled++;
1173: }
1174: sub enable_para {
1175: $para_disabled--;
1176: }
1177:
1178:
1.181 sakharuk 1179: #-- <p> tag (end tag optional)
1.198 sakharuk 1180: #optional attribute - align="center|left|right"
1.122 albertel 1181: sub start_p {
1.157 sakharuk 1182: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1183: my $currentstring = '';
1.302.2.4 albertel 1184: if ($target eq 'web' || $target eq 'webgrade') {
1.279 foxr 1185: $currentstring .= &end_p(); # close off prior para if in progress.
1.122 albertel 1186: $currentstring .= $token->[4];
1.279 foxr 1187: if (! ($currentstring =~ /\//)) {
1188: $closing_string = '</p>'; # Deal correctly with <p /> e.g.
1189: }
1190: } elsif ($target eq 'tex' && !$para_disabled) {
1191: $currentstring .= &end_p(); # close off prior para if in progress.
1.198 sakharuk 1192: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1193: if ($align eq 'center') {
1.277 foxr 1194: $currentstring .='\begin{center}\par';
1195: $closing_string = '\end{center}';
1.302.2.1 albertel 1196: if (&is_inside_of($tagstack, "table")) {
1197: $currentstring = ¢er_correction().$currentstring;
1.302.2.3 albertel 1198: #$closing_string .= ¢er_correction();
1.302.2.1 albertel 1199: }
1.198 sakharuk 1200: } elsif ($align eq 'right') {
1.277 foxr 1201: $currentstring.='\makebox['.$env{'form.textwidth'}.']{\hfill\llap{';
1202: $closing_string= '}}';
1.198 sakharuk 1203: } elsif ($align eq 'left') {
1.277 foxr 1204: $currentstring.='\noindent\makebox['.$env{'form.textwidth'}.']{\rlap{';
1205: $closing_string = '}\hfill}';
1.216 matthew 1206: } else {
1.277 foxr 1207: $currentstring.='\par ';
1.279 foxr 1208: $closing_string = '\strut\\\\\strut ';
1.216 matthew 1209: }
1.277 foxr 1210:
1.144 sakharuk 1211: }
1.122 albertel 1212: return $currentstring;
1213: }
1.277 foxr 1214: #
1215: # End paragraph processing just requires that we output the
1216: # closing string that was saved and blank it.
1217: sub end_p {
1.279 foxr 1218: # Note only 'tex' mode uses disable_para and enable_para
1219: # so we don't need to know the target in the check below:
1220:
1221: if (!$para_disabled) {
1222: my $current_string = $closing_string;
1223: $closing_string = ''; # Not in a para anymore.
1224: return $current_string;
1225: } else {
1226: return '';
1227: }
1.122 albertel 1228:
1229: }
1.277 foxr 1230: }
1.181 sakharuk 1231: #-- <br> tag (end tag forbidden)
1.122 albertel 1232: sub start_br {
1233: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1234: my $currentstring = '';
1.302.2.4 albertel 1235: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1236: $currentstring .= $token->[4];
1237: } elsif ($target eq 'tex') {
1.227 sakharuk 1238: my @tempo=@$tagstack;
1.229 sakharuk 1239: my $signal=0;
1.287 foxr 1240: # Not going to factor this to is_inside_of since that would require
1241: # multiple stack traversals.
1242: #
1.227 sakharuk 1243: for (my $i=$#tempo;$i>=0;$i--) {
1244: if (($tempo[$i] eq 'b') || ($tempo[$i] eq 'strong') ||
1.230 sakharuk 1245: ($tempo[$i] eq 'ol') || ($tempo[$i] eq 'ul') ||
1246: ($tempo[$i] eq 'td') || ($tempo[$i] eq 'th')) {
1.229 sakharuk 1247: $signal=1;
1.227 sakharuk 1248: last;
1249: }
1250: }
1.229 sakharuk 1251: if ($signal) {
1.219 sakharuk 1252: $currentstring .= ' \vskip 0 mm ';
1253: } elsif ($$tagstack[-2] ne 'sub' && $$tagstack[-2] ne 'sup') {
1254: $currentstring .= '\strut \\\\ \strut ';
1.1 sakharuk 1255: }
1.144 sakharuk 1256: }
1.122 albertel 1257: return $currentstring;
1258: }
1259:
1260: sub end_br {
1261: my ($target,$token) = @_;
1262: my $currentstring = '';
1.302.2.4 albertel 1263: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1264: $currentstring .= $token->[2];
1265: }
1266: return $currentstring;
1267: }
1268:
1.181 sakharuk 1269: #-- <big> tag (end tag required)
1.122 albertel 1270: sub start_big {
1271: my ($target,$token) = @_;
1272: my $currentstring = '';
1.302.2.4 albertel 1273: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1274: $currentstring .= $token->[4];
1275: } elsif ($target eq 'tex') {
1.137 sakharuk 1276: $currentstring .= '{\large ';
1.144 sakharuk 1277: }
1.122 albertel 1278: return $currentstring;
1279: }
1280:
1281: sub end_big {
1282: my ($target,$token) = @_;
1283: my $currentstring = '';
1.302.2.4 albertel 1284: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1285: $currentstring .= $token->[2];
1286: } elsif ($target eq 'tex') {
1287: $currentstring .= '}';
1288: }
1289: return $currentstring;
1290: }
1291:
1.181 sakharuk 1292: #-- <small> tag (end tag required)
1.122 albertel 1293: sub start_small {
1294: my ($target,$token) = @_;
1295: my $currentstring = '';
1.302.2.4 albertel 1296: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1297: $currentstring .= $token->[4];
1298: } elsif ($target eq 'tex') {
1299: $currentstring .= '{\footnotesize ';
1.144 sakharuk 1300: }
1.122 albertel 1301: return $currentstring;
1302: }
1303:
1304: sub end_small {
1305: my ($target,$token) = @_;
1306: my $currentstring = '';
1.302.2.4 albertel 1307: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1308: $currentstring .= $token->[2];
1309: } elsif ($target eq 'tex') {
1310: $currentstring .= '}';
1311: }
1312: return $currentstring;
1313: }
1314:
1.181 sakharuk 1315: #-- <basefont> tag (end tag forbidden)
1.122 albertel 1316: sub start_basefont {
1.126 sakharuk 1317: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.122 albertel 1318: my $currentstring = '';
1.302.2.4 albertel 1319: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1320: $currentstring = $token->[4];
1.126 sakharuk 1321: } elsif ($target eq 'tex') {
1322: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1323: if (defined $basesize) {
1324: $currentstring = '{\\'.$basesize.' ';
1325: }
1326: }
1.122 albertel 1327: return $currentstring;
1328: }
1329:
1330: sub end_basefont {
1.126 sakharuk 1331: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1332: my $currentstring = '';
1.302.2.4 albertel 1333: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1334: $currentstring = $token->[4];
1.126 sakharuk 1335: } elsif ($target eq 'tex') {
1336: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1337: if (defined $basesize) {
1338: $currentstring = '}';
1339: }
1340: }
1.122 albertel 1341: return $currentstring;
1342: }
1343:
1.181 sakharuk 1344: #-- <font> tag (end tag required)
1.122 albertel 1345: sub start_font {
1346: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1347: my $currentstring = '';
1.302.2.4 albertel 1348: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1349: my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
1.204 albertel 1350: if ($face!~/symbol/i) {
1.267 albertel 1351: if (($env{'browser.fontenhance'} eq 'on') ||
1352: ($env{'browser.blackwhite'} eq 'on')) { return ''; }
1.155 www 1353: }
1.122 albertel 1354: $currentstring = $token->[4];
1.126 sakharuk 1355: } elsif ($target eq 'tex') {
1356: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1357: if (defined $fontsize) {
1358: $currentstring = '{\\'.$fontsize.' ';
1359: }
1360: }
1.122 albertel 1361: return $currentstring;
1362: }
1363:
1364: sub end_font {
1365: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1366: my $currentstring = '';
1.302.2.4 albertel 1367: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1368: $currentstring = $token->[2];
1.126 sakharuk 1369: } elsif ($target eq 'tex') {
1370: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1371: if (defined $fontsize) {
1372: $currentstring = '}';
1373: }
1374: }
1.122 albertel 1375: return $currentstring;
1376: }
1377:
1.181 sakharuk 1378: #-- <strike> tag (end tag required)
1.122 albertel 1379: sub start_strike {
1380: my ($target,$token) = @_;
1381: my $currentstring = '';
1.302.2.4 albertel 1382: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1383: $currentstring .= $token->[4];
1384: } elsif ($target eq 'tex') {
1385: &Apache::lonxml::startredirection();
1386: }
1387: return $currentstring;
1388: }
1389:
1390: sub end_strike {
1391: my ($target,$token) = @_;
1392: my $currentstring = '';
1.302.2.4 albertel 1393: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1394: $currentstring .= $token->[2];
1395: } elsif ($target eq 'tex') {
1396: $currentstring=&Apache::lonxml::endredirection();
1397: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1398: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1399: $currentstring=~s/(\S)\s*$/$1\}/;
1400: }
1401: return $currentstring;
1402: }
1403:
1.181 sakharuk 1404: #-- <s> tag (end tag required)
1.122 albertel 1405: sub start_s {
1406: my ($target,$token) = @_;
1407: my $currentstring = '';
1.302.2.4 albertel 1408: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1409: $currentstring .= $token->[4];
1410: } elsif ($target eq 'tex') {
1411: &Apache::lonxml::startredirection();
1412: }
1413: return $currentstring;
1414: }
1415:
1416: sub end_s {
1417: my ($target,$token) = @_;
1418: my $currentstring = '';
1.302.2.4 albertel 1419: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1420: $currentstring .= $token->[2];
1421: } elsif ($target eq 'tex') {
1422: $currentstring=&Apache::lonxml::endredirection();
1423: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1424: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1425: $currentstring=~s/(\S)\s*$/$1\}/;
1426: }
1427: return $currentstring;
1428: }
1429:
1.181 sakharuk 1430: #-- <sub> tag (end tag required)
1.122 albertel 1431: sub start_sub {
1432: my ($target,$token) = @_;
1433: my $currentstring = '';
1.302.2.4 albertel 1434: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1435: $currentstring .= $token->[4];
1436: } elsif ($target eq 'tex') {
1.202 sakharuk 1437: $currentstring .= '\ensuremath{_{';
1.122 albertel 1438: }
1439: return $currentstring;
1440: }
1441:
1442: sub end_sub {
1443: my ($target,$token) = @_;
1444: my $currentstring = '';
1.302.2.4 albertel 1445: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1446: $currentstring .= $token->[2];
1447: } elsif ($target eq 'tex') {
1.202 sakharuk 1448: $currentstring .= '}}';
1.122 albertel 1449: }
1450: return $currentstring;
1451: }
1452:
1.181 sakharuk 1453: #-- <sup> tag (end tag required)
1.122 albertel 1454: sub start_sup {
1455: my ($target,$token) = @_;
1456: my $currentstring = '';
1.302.2.4 albertel 1457: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1458: $currentstring .= $token->[4];
1459: } elsif ($target eq 'tex') {
1.202 sakharuk 1460: $currentstring .= '\ensuremath{^{';
1.122 albertel 1461: }
1462: return $currentstring;
1463: }
1464:
1465: sub end_sup {
1466: my ($target,$token) = @_;
1467: my $currentstring = '';
1.302.2.4 albertel 1468: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1469: $currentstring .= $token->[2];
1470: } elsif ($target eq 'tex') {
1.202 sakharuk 1471: $currentstring .= '}}';
1.122 albertel 1472: }
1473: return $currentstring;
1474: }
1475:
1.181 sakharuk 1476: #-- <hr> tag (end tag forbidden)
1.122 albertel 1477: sub start_hr {
1.124 sakharuk 1478: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1479: my $currentstring = &end_p(); # End enclosing para.
1.302.2.4 albertel 1480: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1481: $currentstring .= $token->[4];
1482: } elsif ($target eq 'tex') {
1.149 sakharuk 1483: my $LaTeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1.124 sakharuk 1484: if (defined $LaTeXwidth) {
1485: if ($LaTeXwidth=~/^%/) {
1486: substr($LaTeXwidth,0,1)='';
1487: $LaTeXwidth=($LaTeXwidth/100).'\textwidth';
1488: }
1489: } else {
1.148 sakharuk 1490: $LaTeXwidth ='0.9\textwidth';
1.124 sakharuk 1491: }
1492: my ($pre,$post);
1493: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1494: if (($align eq 'center') || (not defined $align)) {
1495: $pre=''; $post='';
1496: } elsif ($align eq 'left') {
1497: $pre='\rlap{'; $post='} \hfill';
1498: } elsif ($align eq 'right') {
1499: $pre=' \hfill \llap{'; $post='}';
1500: }
1.148 sakharuk 1501: $currentstring .= ' \vskip 0 mm \noindent\makebox['.$LaTeXwidth.']{'.$pre.'\makebox['.
1.124 sakharuk 1502: $LaTeXwidth.'][b]{\hrulefill}'.$post.'}\vskip 0 mm ';
1.122 albertel 1503: }
1504: return $currentstring;
1505: }
1506:
1507: sub end_hr {
1508: my ($target,$token) = @_;
1509: my $currentstring = '';
1.302.2.4 albertel 1510: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1511: $currentstring .= $token->[2];
1.148 sakharuk 1512: }
1.122 albertel 1513: return $currentstring;
1514: }
1515:
1.181 sakharuk 1516: #-- <div> tag (end tag required)
1.280 foxr 1517: {
1518:
1519: # Since div can be nested, the stack below is used
1520: # in 'tex' mode to store the ending strings
1521: # for the div stack.
1522:
1523: my @div_end_stack;
1524:
1.122 albertel 1525: sub start_div {
1.280 foxr 1526: my ($target,$token, $tagstack, $parstack, $parser, $safeeval) = @_;
1.279 foxr 1527: my $currentstring = &end_p(); # Close enclosing para.
1.302.2.4 albertel 1528: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1529: $currentstring .= $token->[4];
1530: }
1.280 foxr 1531: if ($target eq 'tex') {
1532: # 4 possible alignments: left, right, center, and -missing-.
1533:
1534: my $endstring = '';
1535:
1536: my $align = lc(&Apache::lonxml::get_param('align', $parstack,
1537: $safeeval, undef, 1));
1538: if ($align eq 'center') {
1539: $currentstring .= '\begin{center}';
1540: $endstring = '\end{center}';
1.302.2.1 albertel 1541: if (&is_inside_of($tagstack, "table")) {
1542: $currentstring = ¢er_correction().$currentstring;
1.302.2.3 albertel 1543: #$endstring .= ¢er_correction();
1.302.2.1 albertel 1544: }
1.280 foxr 1545: }
1546: elsif ($align eq 'right') {
1547: $currentstring .= '\begin{flushright}';
1548: $endstring .= '\end{flushright}';
1549: } elsif ($align eq 'left') {
1550: $currentstring .= '\begin{flushleft}';
1551: $endstring = '\end{flushleft}';
1552: } else {
1553:
1554: }
1555: $currentstring .= "\n"; # For human readability.
1556: $endstring = "\n$endstring\n"; # For human readability
1557: push(@div_end_stack, $endstring);
1558: }
1.122 albertel 1559: return $currentstring;
1560: }
1561:
1562: sub end_div {
1563: my ($target,$token) = @_;
1564: my $currentstring = '';
1.302.2.4 albertel 1565: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1566: $currentstring .= $token->[2];
1.280 foxr 1567: }
1568: if ($target eq 'tex') {
1569: my $endstring = pop @div_end_stack;
1570: $currentstring .= $endstring;
1571: }
1.122 albertel 1572: return $currentstring;
1573: }
1.280 foxr 1574: }
1.122 albertel 1575:
1.181 sakharuk 1576: #-- <a> tag (end tag required)
1.122 albertel 1577: sub start_a {
1.149 sakharuk 1578: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1579: my $currentstring = '';
1.302.2.4 albertel 1580: if ($target eq 'web' || $target eq 'webgrade') {
1.250 albertel 1581: my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
1582: undef,1);
1583: $currentstring=&Apache::lonenc::encrypt_ref($token,{'href'=>$href});
1.122 albertel 1584: } elsif ($target eq 'tex') {
1.149 sakharuk 1585: my $a=&Apache::lonxml::get_param('href',$parstack,$safeeval,undef,1);
1.161 sakharuk 1586: my $b=&Apache::lonxml::get_param('name',$parstack,$safeeval,undef,1);
1587: if ($a=~/\S/) {
1588: $a=~s/([^\\])%/$1\\\%/g;
1589: $currentstring .= '\ref{URI: '.$a.'}';
1590: } elsif ($b=~/\S/) {
1591: $currentstring .= '\ref{Anchor: '.$b.'}';
1592: } else {
1593: $currentstring.='';
1594: }
1.122 albertel 1595: }
1596: return $currentstring;
1597: }
1598:
1599: sub end_a {
1.168 albertel 1600: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1601: my $currentstring = '';
1.302.2.4 albertel 1602: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1603: $currentstring .= $token->[2];
1604: }
1605: return $currentstring;
1606: }
1607:
1.181 sakharuk 1608: #-- <li> tag (end tag optional)
1.122 albertel 1609: sub start_li {
1.168 albertel 1610: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1611: my $currentstring = '';
1.302.2.4 albertel 1612: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1613: $currentstring = $token->[4];
1614: } elsif ($target eq 'tex') {
1.237 sakharuk 1615: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1616: my $value=&Apache::lonxml::get_param('value',$parstack,$safeeval,undef,0);
1.238 albertel 1617: #FIXME need to support types i and I
1618: if ($type=~/disc/) {
1619: $currentstring .= ' \item[$\bullet$] ';
1620: } elsif ($type=~/circle/) {
1621: $currentstring .= ' \item[$\circ$] ';
1.146 sakharuk 1622: } elsif ($type=~/square/) {
1.238 albertel 1623: $currentstring .= ' \item[$\diamond$] ';
1624: } elsif ($type eq '1') {
1625: $currentstring .= ' \item['.($Apache::londefdef::list_index+1).'.]';
1.237 sakharuk 1626: } elsif ($type eq 'A') {
1.238 albertel 1627: $currentstring .= ' \item['.('A'..'Z')[$Apache::londefdef::list_index].'.]';
1.237 sakharuk 1628: } elsif ($type eq 'a') {
1.238 albertel 1629: $currentstring .= ' \item['.('a'..'z')[$Apache::londefdef::list_index].'.]';
1.237 sakharuk 1630: } elsif ($value ne '') {
1631: $currentstring .= ' \item['.$value.'] ';
1.122 albertel 1632: } else {
1.146 sakharuk 1633: $currentstring .= ' \item ';
1.122 albertel 1634: }
1.238 albertel 1635: $Apache::londefdef::list_index++;
1636: }
1.122 albertel 1637: return $currentstring;
1638: }
1639:
1640: sub end_li {
1641: my ($target,$token) = @_;
1.279 foxr 1642: my $currentstring = &end_p(); # In case there's a <p> in the <li>
1.302.2.4 albertel 1643: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1644: $currentstring .= $token->[2];
1.122 albertel 1645: }
1646: return $currentstring;
1647: }
1648:
1.181 sakharuk 1649: #-- <u> tag (end tag required)
1.122 albertel 1650: sub start_u {
1651: my ($target,$token) = @_;
1652: my $currentstring = '';
1.302.2.4 albertel 1653: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1654: $currentstring .= $token->[4];
1655: } elsif ($target eq 'tex') {
1656: &Apache::lonxml::startredirection();
1657: }
1658: return $currentstring;
1659: }
1660:
1661: sub end_u {
1662: my ($target,$token) = @_;
1663: my $currentstring = '';
1.302.2.4 albertel 1664: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1665: $currentstring .= $token->[2];
1666: } elsif ($target eq 'tex') {
1667: $currentstring=&Apache::lonxml::endredirection();
1668: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1669: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1670: $currentstring=~s/(\S)\s*$/$1\}/;
1671: }
1672: return $currentstring;
1673: }
1674:
1.181 sakharuk 1675: #-- <ul> tag (end tag required)
1.122 albertel 1676: sub start_ul {
1.125 sakharuk 1677: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1678: my $currentstring = &end_p(); # Close off enclosing list.
1.302.2.4 albertel 1679: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1680: $currentstring .= $token->[4];
1.122 albertel 1681: } elsif ($target eq 'tex') {
1.125 sakharuk 1682: my $TeXtype=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1.238 albertel 1683: $Apache::londefdef::list_index=0;
1.125 sakharuk 1684: if ($TeXtype eq 'disc') {
1.222 sakharuk 1685: $currentstring .= '\renewcommand{\labelitemi}{$\bullet$}'.
1686: '\renewcommand{\labelitemii}{$\bullet$}'.
1687: '\renewcommand{\labelitemiii}{$\bullet$}'.
1688: '\renewcommand{\labelitemiv}{$\bullet$}';
1.125 sakharuk 1689: } elsif ($TeXtype eq 'circle') {
1.222 sakharuk 1690: $currentstring .= '\renewcommand{\labelitemi}{$\circ$}'.
1691: '\renewcommand{\labelitemii}{$\circ$}'.
1692: '\renewcommand{\labelitemiii}{$\circ$}'.
1693: '\renewcommand{\labelitemiv}{$\circ$}';
1.125 sakharuk 1694: } elsif ($TeXtype eq 'square') {
1.222 sakharuk 1695: $currentstring .= '\renewcommand{\labelitemi}{$\diamond$}'.
1696: '\renewcommand{\labelitemii}{$\diamond$}'.
1697: '\renewcommand{\labelitemiii}{$\diamond$}'.
1698: '\renewcommand{\labelitemiv}{$\diamond$}';
1.125 sakharuk 1699: }
1.222 sakharuk 1700: $currentstring .= '\strut \begin{itemize}';
1.122 albertel 1701: }
1702: return $currentstring;
1703: }
1704:
1705: sub end_ul {
1706: my ($target,$token) = @_;
1707: my $currentstring = '';
1.302.2.4 albertel 1708: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1709: $currentstring = $token->[2];
1710: } elsif ($target eq 'tex') {
1.222 sakharuk 1711: $currentstring = '\end{itemize} \renewcommand{\labelitemi}{$\bullet$}'.
1712: '\renewcommand{\labelitemii}{$\bullet$}'.
1713: '\renewcommand{\labelitemiii}{$\bullet$}'.
1714: '\renewcommand{\labelitemiv}{$\bullet$}\strut ';
1.122 albertel 1715: }
1716: return $currentstring;
1717: }
1718:
1.181 sakharuk 1719: #-- <menu> tag (end tag required)
1.122 albertel 1720: sub start_menu {
1721: my ($target,$token) = @_;
1722: my $currentstring = '';
1.302.2.4 albertel 1723: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1724: $currentstring = $token->[4];
1725: } elsif ($target eq 'tex') {
1726: $currentstring = " \\begin{itemize} ";
1727: }
1728: return $currentstring;
1729: }
1730:
1731: sub end_menu {
1732: my ($target,$token) = @_;
1733: my $currentstring = '';
1.302.2.4 albertel 1734: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1735: $currentstring = $token->[2];
1736: } elsif ($target eq 'tex') {
1737: $currentstring = " \\end{itemize}";
1738: }
1739: return $currentstring;
1740: }
1741:
1.181 sakharuk 1742: #-- <dir> tag (end tag required)
1.122 albertel 1743: sub start_dir {
1744: my ($target,$token) = @_;
1.279 foxr 1745: my $currentstring = &end_p(); # In case there's a <p> prior to the list.
1.302.2.4 albertel 1746: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1747: $currentstring .= $token->[4];
1.122 albertel 1748: } elsif ($target eq 'tex') {
1.277 foxr 1749: $currentstring .= " \\begin{itemize} ";
1.122 albertel 1750: }
1751: return $currentstring;
1752: }
1753:
1754: sub end_dir {
1755: my ($target,$token) = @_;
1756: my $currentstring = '';
1.302.2.4 albertel 1757: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1758: $currentstring = $token->[2];
1759: } elsif ($target eq 'tex') {
1760: $currentstring = " \\end{itemize}";
1761: }
1762: return $currentstring;
1763: }
1764:
1.181 sakharuk 1765: #-- <ol> tag (end tag required)
1.122 albertel 1766: sub start_ol {
1.125 sakharuk 1767: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1768: my $currentstring = &end_p(); # In case there's a <p> prior to the list.
1.302.2.4 albertel 1769: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1770: $currentstring .= $token->[4];
1.122 albertel 1771: } elsif ($target eq 'tex') {
1.238 albertel 1772: $Apache::londefdef::list_index=0;
1.125 sakharuk 1773: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1774: if ($type eq '1') {
1.222 sakharuk 1775: $currentstring .= '\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1776: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1777: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1778: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}';
1.125 sakharuk 1779: } elsif ($type eq 'A') {
1.222 sakharuk 1780: $currentstring .= '\renewcommand{\labelenumi}{\Alph{enumi}.}'.
1781: '\renewcommand{\labelenumii}{\Alph{enumii}.}'.
1782: '\renewcommand{\labelenumiii}{\Alph{enumiii}.}'.
1783: '\renewcommand{\labelenumiv}{\Alph{enumiv}.}';
1.125 sakharuk 1784: } elsif ($type eq 'a') {
1.222 sakharuk 1785: $currentstring .= '\renewcommand{\labelenumi}{\alph{enumi}.}'.
1786: '\renewcommand{\labelenumii}{\alph{enumii}.}'.
1787: '\renewcommand{\labelenumiii}{\alph{enumiii}.}'.
1788: '\renewcommand{\labelenumiv}{\alph{enumiv}.}';
1.125 sakharuk 1789: } elsif ($type eq 'i') {
1.222 sakharuk 1790: $currentstring .= '\renewcommand{\labelenumi}{\roman{enumi}.}'.
1791: '\renewcommand{\labelenumii}{\roman{enumii}.}'.
1792: '\renewcommand{\labelenumiii}{\roman{enumiii}.}'.
1793: '\renewcommand{\labelenumiv}{\roman{enumiv}.}';
1.125 sakharuk 1794: } elsif ($type eq 'I') {
1.222 sakharuk 1795: $currentstring .= '\renewcommand{\labelenumi}{\Roman{enumi}.}'.
1796: '\renewcommand{\labelenumii}{\Roman{enumii}.}'.
1797: '\renewcommand{\labelenumiii}{\Roman{enumiii}.}'.
1798: '\renewcommand{\labelenumiv}{\Roman{enumiv}.}';
1.125 sakharuk 1799: }
1.222 sakharuk 1800: $currentstring .= '\strut \begin{enumerate}';
1.122 albertel 1801: }
1802: return $currentstring;
1803: }
1804:
1805: sub end_ol {
1806: my ($target,$token) = @_;
1807: my $currentstring = '';
1.302.2.4 albertel 1808: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1809: $currentstring = $token->[2];
1810: } elsif ($target eq 'tex') {
1.222 sakharuk 1811: $currentstring = '\end{enumerate}\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1812: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1813: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1814: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}\strut ';
1.122 albertel 1815: }
1816: return $currentstring;
1817: }
1818:
1.181 sakharuk 1819: #-- <dl> tag (end tag required)
1.122 albertel 1820: sub start_dl {
1821: my ($target,$token) = @_;
1.279 foxr 1822: my $currentstring = &end_p(); # In case there's a <p> unclosed prior to the list.
1.302.2.4 albertel 1823: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1824: $currentstring .= $token->[4];
1.122 albertel 1825: } elsif ($target eq 'tex') {
1.277 foxr 1826: $currentstring .= '\begin{description}';
1.243 albertel 1827: $Apache::londefdef::DL++;
1828: push(@Apache::londefdef::description,[]);
1829: $Apache::londefdef::DD[$Apache::londefdef::DL]=0;
1830: $Apache::londefdef::DT[$Apache::londefdef::DL]=0;
1.244 albertel 1831: $Apache::londefdef::seenDT[$Apache::londefdef::DL]=0;
1.122 albertel 1832: }
1833: return $currentstring;
1834: }
1835:
1836: sub end_dl {
1.174 sakharuk 1837: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1838: my $currentstring = '';
1.302.2.4 albertel 1839: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1840: $currentstring = $token->[2];
1841: } elsif ($target eq 'tex') {
1.243 albertel 1842: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1843: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
1844: foreach my $element (@{$Apache::londefdef::description[-1]}) {
1.174 sakharuk 1845: $currentstring.=' '.$element.' ';
1846: }
1.243 albertel 1847: pop(@Apache::londefdef::description);
1.174 sakharuk 1848: $currentstring.='\end{description}';
1.243 albertel 1849: delete($Apache::londefdef::DD[$Apache::londefdef::DL]);
1850: delete($Apache::londefdef::DT[$Apache::londefdef::DL]);
1.244 albertel 1851: delete($Apache::londefdef::seenDT[$Apache::londefdef::DL]);
1.243 albertel 1852: $Apache::londefdef::DL--;
1.122 albertel 1853: }
1854: return $currentstring;
1855: }
1856:
1.172 sakharuk 1857: #-- <dt> tag (end tag optional)
1.122 albertel 1858: sub start_dt {
1.172 sakharuk 1859: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1860: my $currentstring='';
1.302.2.4 albertel 1861: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1862: $currentstring = $token->[4];
1863: } elsif ($target eq 'tex') {
1.243 albertel 1864: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1865: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
1.174 sakharuk 1866: &Apache::lonxml::startredirection();
1.243 albertel 1867: $Apache::londefdef::DT[-1]++;
1.244 albertel 1868: $Apache::londefdef::seenDT[-1]=1;
1.122 albertel 1869: }
1870: return $currentstring;
1871: }
1872:
1873: sub end_dt {
1.172 sakharuk 1874: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1875: my $currentstring = '';
1.302.2.4 albertel 1876: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1877: $currentstring = $token->[2];
1878: } elsif ($target eq 'tex') {
1.243 albertel 1879: if ($Apache::londefdef::DT[-1]) {
1880: my $data=&item_cleanup();
1.244 albertel 1881: push(@{$Apache::londefdef::description[-1]},'\item['.$data.'] \strut \vskip 0mm');
1.243 albertel 1882: $Apache::londefdef::DT[-1]--;
1883: }
1.122 albertel 1884: }
1885: return $currentstring;
1886: }
1887:
1.173 sakharuk 1888: sub item_cleanup {
1.174 sakharuk 1889: my $item=&Apache::lonxml::endredirection();
1.173 sakharuk 1890: $item=~s/\\begin{center}//g;
1891: $item=~s/\\end{center}//g;
1892: return $item;
1893: }
1894:
1.181 sakharuk 1895: #-- <dd> tag (end tag optional)
1.122 albertel 1896: sub start_dd {
1.147 sakharuk 1897: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1898: my $currentstring = '';
1.302.2.4 albertel 1899: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1900: $currentstring = $token->[4];
1.147 sakharuk 1901: } elsif ($target eq 'tex') {
1.243 albertel 1902: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
1903: if ($Apache::londefdef::DD[-1]) { &end_dd(@_);}
1.244 albertel 1904: if (!$Apache::londefdef::seenDT[-1]) {
1905: push(@{$Apache::londefdef::description[-1]},'\item[\strut] \strut \vskip 0mm ');
1906: }
1.243 albertel 1907: push(@{$Apache::londefdef::description[-1]},'');
1908: $Apache::londefdef::description[-1]->[-1].=' \strut ';
1909: $Apache::londefdef::DD[-1]++;
1.174 sakharuk 1910: &Apache::lonxml::startredirection();
1.122 albertel 1911: }
1912: return $currentstring;
1913: }
1914:
1915: sub end_dd {
1.174 sakharuk 1916: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1917: my $currentstring = '';
1.302.2.4 albertel 1918: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1919: $currentstring = $token->[2];
1.174 sakharuk 1920: } elsif ($target eq 'tex') {
1.243 albertel 1921: $Apache::londefdef::description[-1]->[-1].=
1922: &Apache::lonxml::endredirection().' \vskip 0mm ';
1923: $Apache::londefdef::DD[-1]--;
1.174 sakharuk 1924: }
1.122 albertel 1925: return $currentstring;
1926: }
1927:
1.181 sakharuk 1928: #-- <table> tag (end tag required)
1.277 foxr 1929: # <table> also ends any prior <p> that is not closed.
1930: # but, unless I allow <p>'s to nest, that's the
1931: # only way I could think of to allow <p> in
1932: # <tr> <th> bodies
1933: #
1.206 sakharuk 1934: #list of supported attributes: border,width,TeXwidth
1.91 sakharuk 1935: sub start_table {
1936: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 foxr 1937: my $textwidth = '';
1.279 foxr 1938: my $currentstring = &end_p();
1.302.2.4 albertel 1939: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 1940: $currentstring .= $token->[4];
1.91 sakharuk 1941: } elsif ($target eq 'tex') {
1942: my $aa = {};
1943: push @Apache::londefdef::table, $aa;
1944: $Apache::londefdef::table[-1]{'row_number'} = -1;
1.222 sakharuk 1945: #maximum table's width (default coincides with text line length)
1.206 sakharuk 1946: if ($#Apache::londefdef::table==0) {
1.267 albertel 1947: $textwidth=&recalc($env{'form.textwidth'}); #result is always in mm
1.206 sakharuk 1948: $textwidth=~/(\d+\.?\d*)/;
1949: $textwidth=0.95*$1; #accounts "internal" LaTeX space for table frame
1950: } else {
1951: if ($Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}]=~/\d/) {
1952: #the maximum width of nested table is determined by LATeX width of parent cell
1953: $textwidth=$Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}];
1954: } else {
1955: #try to use all space not used before (minus 5% for LaTeX table internal) - rather silly
1.228 sakharuk 1956: $textwidth=$Apache::londefdef::table[-2]{'width'};
1.206 sakharuk 1957: for (my $i=0;$i<$Apache::londefdef::table[-2]{'counter_columns'};$i++) {
1958: $textwidth=$textwidth-$Apache::londefdef::table[-2]{'TeXlen'}[0][$i];
1959: }
1960: }
1961: }
1.294 foxr 1962:
1963: # width either comes forced from the TeXwidth or the width parameters.
1964: # in either case it can be a percentage or absolute width.
1.302.2.2 albertel 1965: # in the width case we ignore absolute width
1.126 sakharuk 1966: my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1.302.2.1 albertel 1967: if (!defined($TeXwidth)) {
1.302.2.2 albertel 1968: my $htmlwidth = &Apache::lonxml::get_param('width',$parstack,
1969: $safeeval,undef,1);
1970: if ($htmlwidth =~ /%/) {
1971: $TeXwidth = $htmlwidth;
1972: } else {
1973: $TeXwidth = $textwidth;
1974: }
1.294 foxr 1975: } else {
1976: $Apache::londefdef::table[-1]{'forcedtablewidth'} = 1;
1977: }
1978: if ($TeXwidth=~/%/) {
1.203 sakharuk 1979: $Apache::londefdef::table[-1]{'percent'}=1;
1.126 sakharuk 1980: $TeXwidth=~/(\d+)/;
1.206 sakharuk 1981: $Apache::londefdef::table[-1]{'width'}=$1*$textwidth/100;
1.126 sakharuk 1982: } else {
1.206 sakharuk 1983: $Apache::londefdef::table[-1]{'width'}=$TeXwidth;
1.126 sakharuk 1984: }
1.294 foxr 1985:
1.126 sakharuk 1986: #table's border
1.206 sakharuk 1987: my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval);
1.208 sakharuk 1988: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
1.91 sakharuk 1989: unless (defined $border) { $border = 0; }
1990: if ($border) {
1991: $Apache::londefdef::table[-1]{'hinc'} = '\hline ';
1992: $Apache::londefdef::table[-1]{'vinc'} = '&';
1993: $Apache::londefdef::table[-1]{'vvinc'} = '|';
1994: } else {
1995: $Apache::londefdef::table[-1]{'hinc'} = '';
1996: $Apache::londefdef::table[-1]{'vinc'} = '&';
1997: $Apache::londefdef::table[-1]{'vvinc'} = '';
1998: }
1.206 sakharuk 1999: if ($#Apache::londefdef::table==0) {
1.281 foxr 2000: # Note that \newline seems to destroy the alignment envs.
2001: # $Apache::londefdef::table[-1]{'output'}='\strut\newline\strut\setlength{\tabcolsep}{1 mm}';
2002: $Apache::londefdef::table[-1]{'output'}='\strut'.'\\\\'."\n".'\strut\setlength{\tabcolsep}{1 mm}';
1.206 sakharuk 2003: }
2004: $Apache::londefdef::table[-1]{'output'}.=' \noindent \begin{tabular} ';
2005: $Apache::londefdef::table[-1]{'TeXlen'}=[];
2006: $Apache::londefdef::table[-1]{'objectlen'}=[];
1.229 sakharuk 2007: $Apache::londefdef::table[-1]{'objectsignal'}=[];
1.206 sakharuk 2008: $Apache::londefdef::table[-1]{'maxlen'}=[];
2009: $Apache::londefdef::table[-1]{'minlen'}=[];
2010: $Apache::londefdef::table[-1]{'content'}=[];
2011: $Apache::londefdef::table[-1]{'align'}=[];
1.277 foxr 2012: $currentstring.='\keephidden{NEW TABLE ENTRY}';
1.295 foxr 2013:
1.294 foxr 2014:
2015: }
1.91 sakharuk 2016: return $currentstring;
2017: }
1.122 albertel 2018:
2019: sub end_table {
2020: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2021: my $currentstring = '';
1.302.2.4 albertel 2022: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2023: $currentstring = $token->[2];
2024: } elsif ($target eq 'tex') {
2025: my $inmemory = '';
2026: my $output = '';
1.206 sakharuk 2027: my $WARNING='';
2028: #width of columns from TeXwidth attributes
1.294 foxr 2029:
1.206 sakharuk 2030: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2031: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2032: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]<$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn]) {
2033: $Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]=$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn];
2034: }
2035: }
2036: }
2037: #free space and number of empty columns
2038: my ($available_space,$empty_columns)=($Apache::londefdef::table[-1]{'width'},0);
1.228 sakharuk 2039: if ($#Apache::londefdef::table ne 0) {$available_space=0.9*$available_space;}
1.206 sakharuk 2040: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2041: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]==0) {
2042: $empty_columns++;
2043: } else {
2044: $available_space=$available_space-$Apache::londefdef::table[-1]{'TeXlen'}[0][$jn];
2045: }
2046: }
2047: #boundaries for contents columns
2048: my @min_len=();#columns can not be narrower
2049: my @max_len=();#maximum length of column
2050: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2051: my ($localmin,$localmax)=(0,0);
2052: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2053: if ($localmin<$Apache::londefdef::table[-1]{'minlen'}[$in][$jn]) {
2054: $localmin=$Apache::londefdef::table[-1]{'minlen'}[$in][$jn];
2055: }
2056: if ($localmax<$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn]) {
2057: $localmax=$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn];
2058: }
2059: }
2060: push @min_len, $localmin;
2061: push @max_len, $localmax;
1.122 albertel 2062: }
1.206 sakharuk 2063: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2064: my $localmin=0,;
2065: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2066: if ($localmin<$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn]) {
2067: $localmin=$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn];
2068: }
2069: }
1.229 sakharuk 2070: if ($max_len[$jn]<$localmin) {
2071: $max_len[$jn]=$localmin;
2072: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
2073: }#object size is bigger
2074: if ($min_len[$jn]<$localmin) {
2075: $min_len[$jn]=$localmin;
2076: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1;
2077: }#object size is bigger
1.206 sakharuk 2078: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]!=0) {
2079: $min_len[$jn]=0;
2080: $max_len[$jn]=0;
2081: }
2082: }
2083: #final adjustment of column width
2084: my @fwidth=@{$Apache::londefdef::table[-1]{'TeXlen'}[0]};#final width array
2085: my @adjust=();
2086: #step 1. adjustment by maximum value
2087: my $space_neeeded=0;
2088: for (my $jn=0;$jn<=$#max_len;$jn++) {
2089: $space_neeeded=$space_neeeded+$max_len[$jn];
2090: }
2091: if ($space_neeeded<=$available_space) {
2092: for (my $jn=0;$jn<=$#max_len;$jn++) {
2093: if ($fwidth[$jn]==0) {
2094: $fwidth[$jn]=$max_len[$jn];
1.53 sakharuk 2095: }
1.51 sakharuk 2096: }
1.206 sakharuk 2097: } else {
2098: #step 2. adjustment by minimum value (estimation)
2099: $space_neeeded=0;
2100: for (my $jn=0;$jn<=$#min_len;$jn++) {
2101: $space_neeeded+=$min_len[$jn];
2102: }
2103: if ($space_neeeded>$available_space) {
2104: $WARNING=' \textbf{NOT ENOUGH SPACE FOR TABLE} ';
2105: for (my $jn=0;$jn<=$#max_len;$jn++) {
2106: if ($fwidth[$jn]==0) {
2107: $fwidth[$jn]=$min_len[$jn];
2108: }
2109: }
1.229 sakharuk 2110: #check if we have objects which can be scaled
2111: my $how_many_to_scale=0;
2112: my @to_scale=();
2113: for (my $jn=0;$jn<=$#max_len;$jn++) {
2114: if ($Apache::londefdef::table[-1]{'objectsignal'}[$jn] eq '1') {
2115: $how_many_to_scale++;
2116: push @to_scale, $jn;
2117: }
2118: }
2119: if ($how_many_to_scale>0) {
2120: my $space_to_adjust=($space_neeeded-$available_space)/$how_many_to_scale;
2121: foreach my $jn (@to_scale) {
2122: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2123: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/;
2124: if ($1 ne '') {
2125: my $current_length=&recalc($1);
2126: $current_length=~/(\d+\.?\d*)/;
2127: $current_length=$current_length-$space_to_adjust;
2128: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/width=$current_length mm/;
2129: }
2130: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/\[(\d+\.?\d*)\s*mm\]/;
2131: if ($1 ne '') {
2132: my $current_length=$1;
2133: $current_length=$current_length-$space_to_adjust;
2134: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/\[(\d+\.?\d*)\s*mm\]/\[$current_length mm\]/;
2135: }
2136: }
2137: $fwidth[$jn]=$fwidth[$jn]-$space_to_adjust;
2138: }
2139: }
1.206 sakharuk 2140: } else {
2141: #step 3. adjustment over minimal + corrections
2142: my $enlarge_coef=$available_space/$space_neeeded;
2143: my $acsessive=0;
2144: for (my $jn=0;$jn<=$#min_len;$jn++) {
2145: $adjust[$jn]=$min_len[$jn]*$enlarge_coef;
2146: if ($adjust[$jn]>$max_len[$jn]) {
2147: $fwidth[$jn]=$max_len[$jn];
2148: $acsessive=$acsessive+$adjust[$jn]-$max_len[$jn];
2149: $adjust[$jn]=0;
2150: }
2151: }
2152: if ($acsessive>0) {
2153: #we have an excess of space and can redistribute it
2154: my $notempty_columns=0;
2155: for (my $jn=0;$jn<=$#min_len;$jn++) {
2156: if ($adjust[$jn]!=0) {
2157: $notempty_columns++;
2158: }
2159: }
2160: my $per_column=$acsessive/$notempty_columns;
2161: for (my $jn=0;$jn<=$#min_len;$jn++) {
2162: if ($adjust[$jn]!=0) {
2163: $adjust[$jn]+=$per_column;
2164: $fwidth[$jn]=$adjust[$jn];
2165: }
1.223 sakharuk 2166: }
2167: } else {
2168: for (my $jn=0;$jn<=$#min_len;$jn++) {
2169: $fwidth[$jn]=$adjust[$jn];
1.206 sakharuk 2170: }
2171: }
1.203 sakharuk 2172: }
2173: }
1.222 sakharuk 2174: #use all available width if it is defined in % or as TeXwidth
2175: if (($Apache::londefdef::table[-1]{'percent'}==1) || ($Apache::londefdef::table[-1]{'forcetablewidth'}==1)) {
1.203 sakharuk 2176: my $current=0;
1.206 sakharuk 2177: for (my $i=0;$i<=$#fwidth;$i++) {
2178: $current+=$fwidth[$i];
1.203 sakharuk 2179: }
2180: my $coef=$Apache::londefdef::table[-1]{'width'}/$current;
1.206 sakharuk 2181: for (my $i=0;$i<=$#fwidth;$i++) {
2182: $fwidth[$i]*=$coef;
2183: }
2184: }
2185: #removing of empty columns if allowed
1.208 sakharuk 2186: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
1.206 sakharuk 2187: if ($permission eq 'yes') {
2188: my @cleaned_table=();
2189: my @cleaned_header=();
2190: my $colind=0;
2191: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
2192: if ($fwidth[$jn]!=0) {
2193: #we need to copy column
2194: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
2195: $cleaned_table[$in][$colind]=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
2196: $cleaned_header[$colind]=$fwidth[$jn];
2197: }
2198: $colind++;
2199: }
1.122 albertel 2200: }
1.206 sakharuk 2201: $Apache::londefdef::table[-1]{'content'}=\@cleaned_table;
2202: @fwidth=@cleaned_header;
1.122 albertel 2203: }
1.206 sakharuk 2204: #construct header of the table
2205: my $header_of_table = '{'.$Apache::londefdef::table[-1]{'vvinc'};
2206: for (my $in=0;$in<=$#fwidth;$in++) {
2207: $header_of_table.='p{'.$fwidth[$in].' mm}'.$Apache::londefdef::table[-1]{'vvinc'};
2208: }
2209: $header_of_table .= '}';
1.126 sakharuk 2210: #fill the table
2211: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1.206 sakharuk 2212: for (my $jn=0;$jn<=$#fwidth;$jn++) {
2213: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
1.302.2.1 albertel 2214: $output.=¢er_correction().'\begin{center}';
1.206 sakharuk 2215: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
2216: $output.=' \hfill \llap{'
2217: }
2218: $output.=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
2219: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
1.302.2.3 albertel 2220: $output.='\end{center}';#.¢er_correction();
1.206 sakharuk 2221: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
2222: $output.='} ';
2223: }
2224: if ($jn!=$#fwidth) {$output.=' '.$Apache::londefdef::table[-1]{'vinc'};}
2225: }
2226: $output.=' \\\\ '.$Apache::londefdef::table[-1]{'hinc'}.' ';
1.122 albertel 2227: }
1.281 foxr 2228: # Note that \newline destroys alignment env's produced by e.g. <div>
2229: # $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut\newline\strut ';
2230: $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut'.'\\\\'."\n".'\strut ';
1.127 sakharuk 2231: if ($#Apache::londefdef::table > 0) {
2232: my $inmemory = $Apache::londefdef::table[-1]{'output'};
1.294 foxr 2233: # Figure out max/and min width by summing us and then
2234: # apply that to the current column of the table we nest in
2235: # if it's larger than the current width or the current width
2236: # is undefined.
2237: #
2238: my $min_nested_width = 0;
2239: my $max_nested_width = 0;
2240: for (my $col = 0; $col <= $Apache::londefdef::table[-1]{'counter_columns'}; $col++) {
2241: $min_nested_width += $min_len[$col];
2242: $max_nested_width += $max_len[$col];
1.300 foxr 2243:
1.294 foxr 2244: }
2245: # Fudge in an extra 5 mm for borders etc:
2246:
2247: $min_nested_width += 5;
2248: $max_nested_width += 5;
2249:
2250: my $outer_column = $Apache::londefdef::table[-2]{'counter_columns'};
2251: my $outer_row = $Apache::londefdef::table[-2]{'row_number'};
2252: if ($min_nested_width > $Apache::londefdef::table[-2]{'minlen'}[$outer_row][$outer_column]) {
2253: $Apache::londefdef::table[-2]{'minlen'}[$outer_row][$outer_column] = $min_nested_width;
2254: }
2255: if ($max_nested_width > $Apache::londefdef::table[-2]{'maxlen'}[$outer_row][$outer_column]) {
2256: $Apache::londefdef::table[-2]{'maxlen'}[$outer_row][$outer_column] = $max_nested_width;
2257: }
2258:
1.127 sakharuk 2259: pop @Apache::londefdef::table;
1.129 sakharuk 2260: push @{$Apache::londefdef::table[-1]{'include'}}, $inmemory;
1.127 sakharuk 2261: } else {
2262: $currentstring .= $Apache::londefdef::table[-1]{'output'};
2263: pop @Apache::londefdef::table;
1.143 sakharuk 2264: undef @Apache::londefdef::table;
1.127 sakharuk 2265: }
1.122 albertel 2266: }
2267: return $currentstring;
2268: }
2269:
1.166 sakharuk 2270: #-- <tr> tag (end tag optional)
1.122 albertel 2271: sub start_tr {
2272: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2273: my $currentstring = '';
1.302.2.4 albertel 2274: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2275: $currentstring = $token->[4];
2276: } elsif ($target eq 'tex') {
2277: $Apache::londefdef::table[-1]{'row_number'}++;
1.206 sakharuk 2278: my $alignchar=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.122 albertel 2279: if ($alignchar ne '') {
1.206 sakharuk 2280: push @ {$Apache::londefdef::table[-1]{'rows'} },substr($alignchar,0,1);
1.122 albertel 2281: } else {
2282: push @ {$Apache::londefdef::table[-1]{'rows'} }, 'l';
2283: }
2284: push ( @{ $Apache::londefdef::table[-1]{'rowdata'} }, $Apache::londefdef::table[-1]{'hinc'});
1.300 foxr 2285: #
2286: # Need to save the number of table columns to preserve the max # columns.
2287: #
2288: $Apache::londefdef::table[-1]{'prior_columns'} = $Apache::londefdef::table[-1]{'counter_columns'};
1.122 albertel 2289: $Apache::londefdef::table[-1]{'counter_columns'} = -1;
1.206 sakharuk 2290: push @ {$Apache::londefdef::table[-1]{'TeXlen'}}, [];
2291: push @ {$Apache::londefdef::table[-1]{'objectlen'}}, [];
2292: push @ {$Apache::londefdef::table[-1]{'minlen'}}, [];
2293: push @ {$Apache::londefdef::table[-1]{'maxlen'}}, [];
2294: push @ {$Apache::londefdef::table[-1]{'content'}}, [];
1.122 albertel 2295: }
2296: return $currentstring;
2297: }
2298:
2299: sub end_tr {
1.160 sakharuk 2300: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 2301: my $currentstring = &end_p(); # Close any pending <p> in the row.
1.302.2.4 albertel 2302: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 2303: $currentstring .= $token->[2];
1.122 albertel 2304: } elsif ($target eq 'tex') {
1.160 sakharuk 2305: if ($Apache::londefdef::TD_redirection) {
2306: &end_td_tex($parstack,$parser,$safeeval);
2307: }
1.300 foxr 2308: # Counter columns must be the maximum number of columns seen
2309: # in the table so far so:
2310: if ($Apache::londefdef::table[-1]{'prior_columns'} > $Apache::londefdef::table[-1]{'counter_columns'}) {
2311: $Apache::londefdef::table[-1]{'counter_columns'} = $Apache::londefdef::table[-1]{'prior_columns'};
2312: }
1.295 foxr 2313:
2314:
1.294 foxr 2315:
1.122 albertel 2316: }
2317: return $currentstring;
2318: }
2319:
1.166 sakharuk 2320: #-- <td> tag (end tag optional)
1.122 albertel 2321: sub start_td {
2322: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2323: my $currentstring = '';
1.302.2.4 albertel 2324: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2325: $currentstring = $token->[4];
2326: } elsif ($target eq 'tex') {
1.160 sakharuk 2327: $Apache::londefdef::TD_redirection = 1;
1.159 sakharuk 2328: &tag_check('tr','td',$tagstack,$parstack,$parser,$safeeval);
1.122 albertel 2329: }
2330: return $currentstring;
2331: }
1.159 sakharuk 2332:
2333: sub tag_check {
2334: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
1.160 sakharuk 2335: my @ar=@$parstack;
2336: for (my $i=$#ar-1;$i>=0;$i--) {
2337: if (lc($$tagstack[$i]) eq $good_tag) {
2338: &start_td_tex($parstack,$parser,$safeeval);
2339: last;
2340: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2341: splice @ar, $i+1;
2342: &end_td_tex(\@ar,$parser,$safeeval);
2343: &start_td_tex($parstack,$parser,$safeeval);
2344: last;
1.159 sakharuk 2345: }
1.160 sakharuk 2346: }
1.159 sakharuk 2347: return '';
2348: }
2349:
2350: sub start_td_tex {
2351: my ($parstack,$parser,$safeeval) = @_;
1.206 sakharuk 2352: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2353: if ($alignchar eq '') {
2354: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
1.159 sakharuk 2355: }
1.206 sakharuk 2356: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
1.159 sakharuk 2357: $Apache::londefdef::table[-1]{'counter_columns'}++;
1.206 sakharuk 2358: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2359: if (defined $TeXwidth) {
2360: my $current_length=&recalc($TeXwidth);
2361: $current_length=~/(\d+\.?\d*)/;
2362: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2363: }
1.159 sakharuk 2364: &Apache::lonxml::startredirection();
2365: return '';
2366: }
2367:
2368: sub end_td_tex {
2369: my ($parstack,$parser,$safeeval) = @_;
2370: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2371: my $data=&Apache::lonxml::endredirection();
2372: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2373: if (defined $TeXwidth) {
1.206 sakharuk 2374: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2375: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2376: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
1.159 sakharuk 2377: } else {
1.206 sakharuk 2378: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2379: my $garbage_data=$data;
2380: my $fwidth=0;
2381: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2382: my $current_length=&recalc($1);
2383: $current_length=~/(\d+\.?\d*)/;
2384: if ($fwidth<$1) {$fwidth=$1;}
2385: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2386: }
2387: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2388: my $current_length=$1;
2389: if ($fwidth<$current_length) {$fwidth=$current_length;}
2390: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2391: }
2392: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2393: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2394: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2395: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
1.231 sakharuk 2396: } elsif ($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)*/) {
2397: my $garbage_data=$data;
2398: my $fwidth=0;
2399: while ($garbage_data=~/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)\s*\}/) {
2400: my $current_length=&recalc($1);
2401: $current_length=~/(\d+\.?\d*)/;
2402: if ($fwidth<$1) {$fwidth=$1;}
2403: $garbage_data=~s/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2404: }
2405: while ($garbage_data=~/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2406: my $current_length=&recalc($1);
2407: $current_length=~/(\d+\.?\d*)/;
2408: if ($fwidth<$1) {$fwidth=$1;}
2409: $garbage_data=~s/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2410: }
2411: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2412: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2413: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2414: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2415: $data=~s/\\\\\s*$//;
1.159 sakharuk 2416: } else {
1.166 sakharuk 2417: $data=~s/^\s+(\S.*)/$1/;
1.159 sakharuk 2418: $data=~s/(.*\S)\s+$/$1/;
1.166 sakharuk 2419: $data=~s/(\s)+/$1/;
1.206 sakharuk 2420: my ($current_length,$min_length)=(0,0);
1.166 sakharuk 2421: if ($data=~/\\vskip/) {
2422: my $newdata=$data;
2423: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2424: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2425: foreach my $elementdata (@newdata) {
1.206 sakharuk 2426: my $lengthnewdata=2.5*&LATEX_length($elementdata);
1.166 sakharuk 2427: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
1.206 sakharuk 2428: my @words=split(/ /,$elementdata);
2429: foreach my $word (@words) {
2430: my $lengthword=2.5*&LATEX_length($word);
2431: if ($min_length<$lengthword) {$min_length=$lengthword;}
2432: }
1.166 sakharuk 2433: }
2434: } else {
1.206 sakharuk 2435: $current_length=2.5*&LATEX_length($data);
2436: my @words=split(/ /,$data);
2437: foreach my $word (@words) {
1.228 sakharuk 2438: my $lengthword=2*&LATEX_length($word);
1.206 sakharuk 2439: if ($min_length<$lengthword) {$min_length=$lengthword;}
2440: }
1.166 sakharuk 2441: }
1.206 sakharuk 2442: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2443: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2444: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2445: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
1.159 sakharuk 2446: }
2447: }
1.302 foxr 2448: # Substitute all of the tables nested in this cell in their appropriate places.
2449:
2450:
2451: my $nested_count = $#{$Apache::londefdef::table[-1]{'include'}}; # This one is constant...
2452: for (my $in=0; $in<=$nested_count; $in++) {
1.301 foxr 2453: my $nested = shift @{$Apache::londefdef::table[-1]{'include'}};
2454: $nested =~ s/\\end\{tabular\}\\strut\\\\/\\end\{tabular\}/;
2455: # $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2456: $data =~ s/\\keephidden\{NEW TABLE ENTRY\}/$nested/;
2457:
2458: }
2459: # Should be be killing off the 'include' elements as they're used up?
1.206 sakharuk 2460: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
1.301 foxr 2461: return '';
1.159 sakharuk 2462: }
2463:
1.122 albertel 2464: sub end_td {
1.126 sakharuk 2465: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 2466: my $currentstring = '';
1.302.2.4 albertel 2467: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2468: $currentstring = $token->[2];
2469: } elsif ($target eq 'tex') {
1.160 sakharuk 2470: $Apache::londefdef::TD_redirection =0;
1.159 sakharuk 2471: &end_td_tex($parstack,$parser,$safeeval);
1.122 albertel 2472: }
2473: return $currentstring;
2474: }
2475:
1.166 sakharuk 2476: #-- <th> tag (end tag optional)
1.122 albertel 2477: sub start_th {
2478: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2479: my $currentstring = '';
1.302.2.4 albertel 2480: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2481: $currentstring = $token->[4];
2482: } elsif ($target eq 'tex') {
1.230 sakharuk 2483: $Apache::londefdef::TD_redirection = 1;
2484: &tagg_check('tr','th',$tagstack,$parstack,$parser,$safeeval);
1.122 albertel 2485: }
2486: return $currentstring;
1.130 sakharuk 2487: }
1.230 sakharuk 2488:
2489: sub tagg_check {
2490: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
2491: my @ar=@$parstack;
2492: for (my $i=$#ar-1;$i>=0;$i--) {
2493: if (lc($$tagstack[$i]) eq $good_tag) {
2494: &start_th_tex($parstack,$parser,$safeeval);
2495: last;
2496: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2497: splice @ar, $i+1;
2498: &end_th_tex(\@ar,$parser,$safeeval);
2499: &start_th_tex($parstack,$parser,$safeeval);
2500: last;
2501: }
2502: }
2503: return '';
2504: }
2505:
2506: sub start_th_tex {
2507: my ($parstack,$parser,$safeeval) = @_;
2508: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2509: if ($alignchar eq '') {
2510: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
2511: }
2512: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
2513: $Apache::londefdef::table[-1]{'counter_columns'}++;
2514: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2515: if (defined $TeXwidth) {
2516: my $current_length=&recalc($TeXwidth);
2517: $current_length=~/(\d+\.?\d*)/;
2518: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2519: }
2520: &Apache::lonxml::startredirection();
2521: return '';
2522: }
2523:
2524: sub end_th_tex {
2525: my ($parstack,$parser,$safeeval) = @_;
2526: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2527: my $data=&Apache::lonxml::endredirection();
2528: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2529: if (defined $TeXwidth) {
2530: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2531: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2532: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2533: } else {
2534: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2535: my $garbage_data=$data;
2536: my $fwidth=0;
2537: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2538: my $current_length=&recalc($1);
2539: $current_length=~/(\d+\.?\d*)/;
2540: if ($fwidth<$1) {$fwidth=$1;}
2541: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2542: }
2543: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2544: my $current_length=$1;
2545: if ($fwidth<$current_length) {$fwidth=$current_length;}
2546: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2547: }
2548: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2549: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2550: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2551: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2552: } else {
2553: $data=~s/^\s+(\S.*)/$1/;
2554: $data=~s/(.*\S)\s+$/$1/;
2555: $data=~s/(\s)+/$1/;
2556: my ($current_length,$min_length)=(0,0);
2557: if ($data=~/\\vskip/) {
2558: my $newdata=$data;
2559: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2560: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2561: foreach my $elementdata (@newdata) {
2562: my $lengthnewdata=2.5*&LATEX_length($elementdata);
2563: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
2564: my @words=split(/ /,$elementdata);
2565: foreach my $word (@words) {
2566: my $lengthword=2.5*&LATEX_length($word);
2567: if ($min_length<$lengthword) {$min_length=$lengthword;}
2568: }
2569: }
2570: } else {
2571: $current_length=2.5*&LATEX_length($data);
2572: my @words=split(/ /,$data);
2573: foreach my $word (@words) {
2574: my $lengthword=2*&LATEX_length($word);
2575: if ($min_length<$lengthword) {$min_length=$lengthword;}
2576: }
2577: }
2578: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2579: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2580: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2581: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
2582: }
2583: }
2584: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
2585: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2586: }
2587: #make data bold
2588: $data='\textbf{'.$data.'}';
2589: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
2590: return'';
2591: }
2592:
1.122 albertel 2593: sub end_th {
1.130 sakharuk 2594: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 2595: my $currentstring = &end_p(); # Close any open <p> in the row.
1.302.2.4 albertel 2596: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 2597: $currentstring .= $token->[2];
1.122 albertel 2598: } elsif ($target eq 'tex') {
1.230 sakharuk 2599: $Apache::londefdef::TD_redirection =0;
2600: &end_th_tex($parstack,$parser,$safeeval);
1.122 albertel 2601: }
2602: return $currentstring;
2603: }
1.230 sakharuk 2604:
1.181 sakharuk 2605: #-- <img> tag (end tag forbidden)
1.249 foxr 2606: #
2607: # Render the <IMG> tag.
2608: # <IMG> has the following attributes (in addition to the
2609: # standard HTML ones:
2610: # TeXwrap - Governs how the tex target will try to wrap text around
2611: # horizontally aligned images.
2612: # TeXwidth - The width of the image when rendered for print (mm).
2613: # TeXheight - The height of the image when rendered for print (mm)
2614: # (Note there seems to also be support for this as a % of page size)
2615: #
1.122 albertel 2616: sub start_img {
1.299 albertel 2617: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 2618: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,
2619: undef,1);
1.302.2.4 albertel 2620: if (! $src &&
2621: ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex')
2622: ) {
1.299 albertel 2623: my $inside = &Apache::lonxml::get_all_text("/img",$parser,$style);
1.189 albertel 2624: return '';
2625: }
1.290 albertel 2626: &Apache::lonxml::extlink($src);
1.122 albertel 2627: my $currentstring = '';
2628: my $scaling = .3;
1.249 foxr 2629:
2630: # Render unto browsers that which are the browser's...
2631:
1.302.2.4 albertel 2632: if ($target eq 'web' || $target eq 'webgrade') {
1.267 albertel 2633: if ($env{'browser.imagesuppress'} ne 'on') {
1.250 albertel 2634: $currentstring.=&Apache::lonenc::encrypt_ref($token,{'src'=>$src});
1.122 albertel 2635: } else {
2636: my $alttag= &Apache::lonxml::get_param
2637: ('alt',$parstack,$safeeval,undef,1);
2638: unless ($alttag) {
2639: $alttag=&Apache::lonmeta::alttag
2640: ($Apache::lonxml::pwd[-1],$src);
1.51 sakharuk 2641: }
1.158 sakharuk 2642: $currentstring.='[IMAGE: '.$alttag.']';
1.1 sakharuk 2643: }
1.249 foxr 2644:
2645: # and render unto TeX that which is LaTeX
2646:
1.122 albertel 2647: } elsif ($target eq 'tex') {
1.248 foxr 2648: #
2649: # The alignment will require some superstructure to be put around
2650: # the \includegraphics stuff. At present we can only partially
2651: # simulate the alignments offered by html.
2652: #
2653: #
2654: my $align = lc(&Apache::lonxml::get_param('align',
2655: $parstack,
2656: $safeeval,
2657: undef,1));
2658: if(!$align) {
1.302.2.1 albertel 2659: # disabled for now see BUG#4535
1.302.2.3 albertel 2660: if (&is_inside_of($tagstack, "table")) {
2661: $align = "top"; # Force top of image to top of table cell
1.287 foxr 2662: } else {
2663: $align = "bottom"; # This is html's default so it's ours too.
2664: }
1.248 foxr 2665: }
2666: #
2667: &Apache::lonxml::debug("Alignemnt = $align");
2668: # LaTeX's image/text wrapping is really bad since it wants to
2669: # make figures float.
2670: # The user has the optional parameter (applicable only to l/r
2671: # alignment to use the picins/parpic directive to get wrapped text
2672: # this is also imperfect.. that's why we give them a choice...
2673: # so they can't yell at us for our choice.
2674: #
2675: my $latex_rendering = &Apache::lonxml::get_param('TeXwrap',
2676: $parstack,
2677: $safeeval,
2678: undef,0);
2679: &Apache::lonxml::debug("LaTeX rendering = $latex_rendering");
2680: if(!$latex_rendering) {
1.288 foxr 2681: $latex_rendering = "texwrap";
1.248 foxr 2682: }
1.261 foxr 2683: &Apache::lonxml::debug("LaTeX rendering = $latex_rendering image file: $src");
1.248 foxr 2684:
1.256 albertel 2685: #if original gif/jpg/png file exist do following:
1.266 albertel 2686: my $origsrc=$src;
1.256 albertel 2687: my ($path,$file) = &get_eps_image($src);
1.122 albertel 2688: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.261 foxr 2689: &Apache::lonxml::debug("path = $path file = $file src = $src");
1.192 sakharuk 2690: if (-e $src) {
1.261 foxr 2691: &Apache::lonxml::debug("$src exists");
1.256 albertel 2692: my ($height_param,$width_param)=
1.266 albertel 2693: &image_size($origsrc,0.3,$parstack,$safeeval);
1.262 foxr 2694: my $destpath = $path;
1.263 foxr 2695: $destpath =~ s/ /\_/g; # Spaces in path cause LaTex to vomit.
2696: my $destfile = $file;
2697: $destfile =~ s/ /\_/g;
1.266 albertel 2698: my $size;
2699: if ($width_param) { $size.='width='.$width_param.' mm,'; }
2700: if ($height_param) { $size.='height='.$height_param.' mm]'; }
2701: $size='['.$size;
2702: $size=~s/,$/]/;
1.262 foxr 2703: $currentstring .= '\graphicspath{{'.$destpath.'}}'
1.266 albertel 2704: .'\includegraphics'.$size.'{'.$destfile.'} ';
1.256 albertel 2705:
1.248 foxr 2706: # If there's an alignment specification we need to honor it here.
2707: # For the horizontal alignments, we will also honor the
2708: # value of the latex specfication. The default is parbox,
2709: # and that's used for illegal values too.
2710: #
2711: # Even though we set a default alignment value, the user
2712: # could have given us an illegal value. In that case we
2713: # just use the default alignment of bottom..
2714: if ($align eq "top") {
2715: $currentstring = '\raisebox{-'.$height_param.'mm}{'.$currentstring.'}';
2716: } elsif (($align eq "center") || ($align eq "middle")) { # Being kind
2717: my $offset = $height_param/2;
2718: $currentstring = '\raisebox{-'.$offset.'mm}{'.$currentstring.'}';
2719: } elsif ($align eq "left") {
2720: if ($latex_rendering eq "parpic") {
2721: $currentstring = '\parpic[l]{'.$currentstring.'}';
1.286 foxr 2722: } else { # wrapfig render
2723: $currentstring = '\begin{wrapfigure}{l}{'.$width_param.'mm}'
2724: .'\scalebox{1.0}{'.$currentstring.'}\end{wrapfigure}';
1.248 foxr 2725: }
2726: } elsif ($align eq "right") {
2727: if ($latex_rendering eq "parpic") {
2728: $currentstring = '\parpic[r]{'.$currentstring.'}';
1.286 foxr 2729: } else { # wrapfig rendering
2730: $currentstring = '\begin{wrapfigure}{r}{'.$width_param.'mm}'
2731: .'\scalebox{1.0}{'.$currentstring.'}\end{wrapfigure}';
2732:
1.248 foxr 2733: }
2734: } else { # Bottom is also default.
2735: # $currentstring = '\raisebox{'.$height_param.'mm}{'.$currentstring.'}';
2736: }
1.122 albertel 2737: } else {
1.261 foxr 2738: &Apache::lonxml::debug("$src does not exist");
1.122 albertel 2739: #original image file doesn't exist so check the alt attribute
2740: my $alt =
2741: &Apache::lonxml::get_param('alt',$parstack,$safeeval,undef,1);
2742: unless ($alt) {
2743: $alt=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
2744: }
2745:
1.256 albertel 2746: if ($alt) { $currentstring .= ' '.$alt.' '; }
1.59 sakharuk 2747: }
1.249 foxr 2748:
2749: # And here's where the semi-quote breaks down: allow the user
2750: # to edit the beast as well by rendering the problem for edit:
1.186 albertel 2751: } elsif ($target eq 'edit') {
2752: $currentstring .=&Apache::edit::tag_start($target,$token);
2753: $currentstring .=&Apache::edit::text_arg('Image Url:','src',$token,70).
2754: &Apache::edit::browse('src',undef,'alt').' '.
2755: &Apache::edit::search('src',undef,'alt').'<br />';
2756: $currentstring .=&Apache::edit::text_arg('Description:','alt',$token,70).'<br />';
2757: $currentstring .=&Apache::edit::text_arg('width (pixel):','width',$token,5);
2758: $currentstring .=&Apache::edit::text_arg('height (pixel):','height',$token,5).'<br />';
2759: $currentstring .=&Apache::edit::text_arg('TeXwidth (mm):','TeXwidth',$token,5);
2760: $currentstring .=&Apache::edit::text_arg('TeXheight (mm):','TeXheight',$token,5);
1.234 albertel 2761: $currentstring .=&Apache::edit::select_arg('Alignment:','align',
2762: ['','bottom','middle','top','left','right'],$token,5);
1.249 foxr 2763: $currentstring .=&Apache::edit::select_arg('TeXwrap:', 'TeXwrap',
2764: ['', 'parbox', 'parpic'], $token, 2);
1.186 albertel 2765: $currentstring .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1.249 foxr 2766: my $src= &Apache::lonxml::get_param('src',$parstack,$safeeval);
2767: my $alt= &Apache::lonxml::get_param('alt',$parstack,$safeeval);
2768: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
2769: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
2770:
2771:
1.186 albertel 2772: $currentstring .= '<img src="'.$src.'" alt="'.$alt.'" ';
2773: if ($width) { $currentstring.=' width="'.$width.'" '; }
2774: if ($height) { $currentstring.=' height="'.$height.'" '; }
2775: $currentstring .= ' />';
2776: } elsif ($target eq 'modified') {
1.210 albertel 2777: my ($osrc,$owidth,$oheight)=
2778: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2779: my $ctag=&Apache::edit::get_new_args($token,$parstack,
1.234 albertel 2780: $safeeval,'src','alt','align',
1.249 foxr 2781: 'TeXwidth','TeXheight', 'TeXwrap',
1.210 albertel 2782: 'width','height');
2783: my ($nsrc,$nwidth,$nheight)=
2784: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2785: my $loc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$nsrc);
2786: &image_replication($loc);
2787: my ($iwidth,$iheight);
2788: if (-e $loc) {
2789: my $image = Image::Magick->new;
2790: $image->Read($loc);
2791: ($iwidth, $iheight) = ($image->Get('width'),
2792: $image->Get('height'));
2793: }
2794: if ($osrc ne $nsrc || (!$nwidth && !$nheight)) {
2795: # changed image or no size specified,
2796: # if they didn't explicitly change the
2797: # width or height use the ones from the image
2798: if ($iwidth && $iheight) {
2799: if ($owidth == $nwidth || (!$nwidth && !$nheight)) {
2800: $token->[2]{'width'} = $iwidth;$ctag=1;
2801: }
2802: if ($oheight == $nheight || (!$nwidth && !$nheight)) {
2803: $token->[2]{'height'}=$iheight;$ctag=1;
1.186 albertel 2804: }
2805: }
2806: }
1.210 albertel 2807: my ($cwidth,$cheight)=($token->[2]{'width'},$token->[2]{'height'});
2808: # if we don't have a width or height
2809: if ($iwidth && $cwidth && !$cheight) {
2810: $token->[2]{'height'}=int(($cwidth/$iwidth)*$iheight);$ctag=1;
2811: }
2812: if ($iheight && $cheight && !$cwidth) {
2813: $token->[2]{'width'}=int(($cheight/$iheight)*$iwidth);$ctag=1;
2814: }
2815: if ($ctag) {$currentstring=&Apache::edit::rebuild_tag($token);}
1.122 albertel 2816: }
1.261 foxr 2817:
1.122 albertel 2818: return $currentstring;
2819: }
2820:
2821: sub end_img {
2822: my ($target,$token) = @_;
2823: my $currentstring = '';
1.302.2.4 albertel 2824: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2825: $currentstring = $token->[2];
2826: } elsif ($target eq 'tex') {
2827: $currentstring = '';
2828: }
2829: return $currentstring;
2830: }
2831:
1.181 sakharuk 2832: #-- <applet> tag (end tag required)
1.122 albertel 2833: sub start_applet {
2834: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2835:
2836: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,undef,1);
1.290 albertel 2837: &Apache::lonxml::extlink($code);
1.122 albertel 2838: my $archive=&Apache::lonxml::get_param('archive',$parstack,$safeeval,
2839: undef,1);
1.290 albertel 2840: &Apache::lonxml::extlink($archive);
1.122 albertel 2841: my $currentstring = '';
1.302.2.4 albertel 2842: if ($target eq 'web' || $target eq 'webgrade') {
1.267 albertel 2843: if ($env{'browser.appletsuppress'} ne 'on') {
1.250 albertel 2844: $currentstring = &Apache::lonenc::encrypt_ref($token,
2845: {'code'=>$code,
2846: 'archive'=>$archive}
2847: );
1.122 albertel 2848: } else {
2849: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
2850: $safeeval,undef,1);
2851: unless ($alttag) {
2852: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2853: $code);
1.44 sakharuk 2854: }
1.122 albertel 2855: $currentstring='[APPLET: '.$alttag.']';
1.1 sakharuk 2856: }
1.122 albertel 2857: } elsif ($target eq 'tex') {
1.177 albertel 2858: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
2859: $safeeval,undef,1);
2860: unless ($alttag) {
2861: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,
2862: undef,1);
2863: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2864: $code);
1.175 sakharuk 2865: }
1.177 albertel 2866: $currentstring.='\begin{center} \fbox{Java Applet: '.$alttag.
2867: '.}\end{center}';
1.122 albertel 2868: }
2869: return $currentstring;
2870: }
2871:
2872: sub end_applet {
2873: my ($target,$token) = @_;
2874: my $currentstring = '';
1.302.2.4 albertel 2875: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2876: $currentstring = $token->[2];
2877: } elsif ($target eq 'tex') {
2878: }
2879: return $currentstring;
2880: }
2881:
1.181 sakharuk 2882: #-- <embed> tag (end tag optional/required)
1.122 albertel 2883: sub start_embed {
2884: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2885: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
1.290 albertel 2886: &Apache::lonxml::extlink($src);
1.122 albertel 2887: my $currentstring = '';
1.302.2.4 albertel 2888: if ($target eq 'web' || $target eq 'webgrade') {
1.267 albertel 2889: if ($env{'browser.embedsuppress'} ne 'on') {
1.250 albertel 2890: $currentstring=&Apache::lonenc::encrypt_ref($token,{'src'=>$src});
1.122 albertel 2891: } else {
2892: my $alttag=&Apache::lonxml::get_param
2893: ('alt',$parstack,$safeeval,undef,1);
2894: unless ($alttag) {
2895: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
1.42 albertel 2896: }
1.122 albertel 2897: $currentstring='[EMBED: '.$alttag.']';
1.10 www 2898: }
1.122 albertel 2899: } elsif ($target eq 'tex') {
2900: }
2901: return $currentstring;
2902: }
2903:
2904: sub end_embed {
2905: my ($target,$token) = @_;
2906: my $currentstring = '';
1.302.2.4 albertel 2907: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2908: $currentstring = $token->[2];
1.175 sakharuk 2909: } elsif ($target eq 'tex') {
1.122 albertel 2910: }
2911: return $currentstring;
2912: }
2913:
1.181 sakharuk 2914: #-- <param> tag (end tag forbidden)
1.122 albertel 2915: sub start_param {
2916: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.290 albertel 2917: if (&Apache::lonxml::get_param('name',$parstack,
2918: $safeeval,undef,1)=~/^cabbase$/i) {
2919: my $value=&Apache::lonxml::get_param('value',$parstack,
2920: $safeeval,undef,1);
2921: &Apache::lonxml::extlink($value);
2922: }
2923:
2924: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2925: &Apache::lonxml::extlink($src);
1.122 albertel 2926: my $currentstring = '';
1.302.2.4 albertel 2927: if ($target eq 'web' || $target eq 'webgrade') {
1.250 albertel 2928: my %toconvert;
2929: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2930: if ($src) { $toconvert{'src'}= $src; }
2931: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval,
2932: undef,1);
1.251 albertel 2933: if ($name=~/^cabbase$/i) {
2934: $toconvert{'value'}=&Apache::lonxml::get_param('value',$parstack,
2935: $safeeval,undef,1);
2936: }
1.250 albertel 2937: $currentstring = &Apache::lonenc::encrypt_ref($token,\%toconvert);
1.122 albertel 2938: } elsif ($target eq 'tex') {
2939: }
2940: return $currentstring;
2941: }
2942:
2943: sub end_param {
2944: my ($target,$token) = @_;
2945: my $currentstring = '';
1.302.2.4 albertel 2946: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2947: $currentstring = $token->[2];
2948: } elsif ($target eq 'tex') {
2949: }
2950: return $currentstring;
2951: }
2952:
2953: #-- <allow> tag
2954: sub start_allow {
2955: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2956: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
1.290 albertel 2957: &Apache::lonxml::extlink($src);
2958:
1.241 albertel 2959: if ($target eq 'tex') { &image_replication($src); }
1.122 albertel 2960: my $result;
2961: if ($target eq 'edit') {
2962: $result .=&Apache::edit::tag_start($target,$token);
2963: $result .=&Apache::edit::text_arg('File Spec:','src',$token,70);
2964: $result .=&Apache::edit::end_row();#.&Apache::edit::start_spanning_row();
2965: } elsif ($target eq 'modified') {
2966: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2967: $safeeval,'src');
2968: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2969: }
2970: return $result;
2971: }
2972:
2973: sub end_allow {
2974: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2975: if ( $target eq 'edit') { return (&Apache::edit::end_table()); }
2976: return '';
2977: }
1.119 www 2978:
1.181 sakharuk 2979: #-- Frames (end tag required)
2980: #-- <frameset>
1.122 albertel 2981: sub start_frameset {
2982: my ($target,$token) = @_;
1.277 foxr 2983: my $currentstring = ''; # Close any pending para.
1.302.2.4 albertel 2984: if ($target eq 'web' || $target eq 'webgrade') {
1.180 albertel 2985: if (!$Apache::lonxml::registered &&
1.267 albertel 2986: $env{'request.state'} eq 'published') {
1.122 albertel 2987: $currentstring.='<head>'.
2988: &Apache::lonmenu::registerurl(undef,$target).'</head>';
1.10 www 2989: }
1.133 www 2990: my $onLoad='';
2991: foreach my $key (keys(%{$token->[2]})) {
2992: if ($key =~ /^onload$/i) {
2993: $onLoad.=$token->[2]->{$key}.';';
2994: delete($token->[2]->{$key});
2995: }
2996: }
2997: $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad;
2998: my $onUnload='';
2999: foreach my $key (keys(%{$token->[2]})) {
3000: if ($key =~ /^onunload$/i) {
3001: $onUnload.=$token->[2]->{$key}.';';
3002: delete($token->[2]->{$key});
3003: }
3004: }
3005: $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().
3006: ';'.$onUnload;
3007:
3008: $currentstring .= '<'.$token->[1];
3009: foreach (keys %{$token->[2]}) {
3010: $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
3011: }
3012: $currentstring.='>';
1.122 albertel 3013: }
3014: return $currentstring;
3015: }
3016:
3017: sub end_frameset {
3018: my ($target,$token) = @_;
3019: my $currentstring = '';
1.302.2.4 albertel 3020: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3021: $currentstring = $token->[2];
3022: }
3023: return $currentstring;
3024: }
1.162 sakharuk 3025:
1.181 sakharuk 3026: #-- <xmp> (end tag required)
1.162 sakharuk 3027: sub start_xmp {
3028: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3029: my $currentstring = '';
1.302.2.4 albertel 3030: if ($target eq 'web' || $target eq 'webgrade') {
1.162 sakharuk 3031: $currentstring .= $token->[4];
3032: } elsif ($target eq 'tex') {
3033: $currentstring .= '\begin{verbatim}';
3034: }
3035: return $currentstring;
3036: }
3037:
3038: sub end_xmp {
3039: my ($target,$token) = @_;
3040: my $currentstring = '';
1.302.2.4 albertel 3041: if ($target eq 'web' || $target eq 'webgrade') {
1.162 sakharuk 3042: $currentstring .= $token->[2];
3043: } elsif ($target eq 'tex') {
3044: $currentstring .= '\end{verbatim}';
3045: }
3046: return $currentstring;
3047: }
3048:
1.181 sakharuk 3049: #-- <pre> (end tag required)
1.122 albertel 3050: sub start_pre {
1.126 sakharuk 3051: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 3052: my $currentstring = &end_p(); # close off pending <p>
1.302.2.4 albertel 3053: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3054: $currentstring .= $token->[4];
3055: } elsif ($target eq 'tex') {
1.136 sakharuk 3056: $currentstring .= '\begin{verbatim}';
1.122 albertel 3057: }
3058: return $currentstring;
3059: }
3060:
3061: sub end_pre {
3062: my ($target,$token) = @_;
3063: my $currentstring = '';
1.302.2.4 albertel 3064: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3065: $currentstring .= $token->[2];
3066: } elsif ($target eq 'tex') {
1.136 sakharuk 3067: $currentstring .= '\end{verbatim}';
1.122 albertel 3068: }
3069: return $currentstring;
3070: }
3071:
3072: #-- <insert>
3073: sub start_insert {
3074: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3075: my $currentstring = '';
1.302.2.4 albertel 3076: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3077: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
3078: $currentstring .= '<b>'.$display.'</b>';;
3079: }
3080: return $currentstring;
3081: }
3082:
3083: sub end_insert {
3084: my ($target,$token) = @_;
3085: my $currentstring = '';
1.302.2.4 albertel 3086: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3087: $currentstring .= '';
3088: }
3089: return $currentstring;
3090: }
3091:
3092: #-- <externallink>
3093: sub start_externallink {
3094: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3095: my $currentstring = '';
1.302.2.4 albertel 3096: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3097: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
3098: $currentstring .= '<b>'.$display.'</b>';;
3099: }
3100: return $currentstring;
3101: }
3102:
3103: sub end_externallink {
3104: my ($target,$token) = @_;
3105: my $currentstring = '';
1.302.2.4 albertel 3106: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3107: $currentstring .= '';
3108: }
3109: return $currentstring;
3110: }
3111:
3112: #-- <blankspace heigth="">
3113: sub start_blankspace {
3114: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 3115: my $currentstring = &end_p(); # closes off any unclosed <p>
1.122 albertel 3116: if ($target eq 'tex') {
3117: my $howmuch = &Apache::lonxml::get_param('heigth',$parstack,$safeeval,undef,1);
3118: $currentstring .= '\vskip '.$howmuch.' ';
3119: }
3120: return $currentstring;
3121: }
3122:
3123: sub end_blankspace {
3124: my ($target,$token) = @_;
3125: my $currentstring = '';
3126: if ($target eq 'tex') {
3127: $currentstring .= '';
3128: }
3129: return $currentstring;
3130: }
3131:
1.181 sakharuk 3132: #-- <abbr> tag (end tag required)
1.122 albertel 3133: sub start_abbr {
3134: my ($target,$token) = @_;
3135: my $currentstring = '';
1.302.2.4 albertel 3136: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3137: $currentstring = $token->[4];
3138: }
3139: return $currentstring;
3140: }
3141:
3142: sub end_abbr {
3143: my ($target,$token) = @_;
3144: my $currentstring = '';
1.302.2.4 albertel 3145: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3146: $currentstring = $token->[2];
3147: }
3148: return $currentstring;
3149: }
3150:
1.181 sakharuk 3151: #-- <acronym> tag (end tag required)
1.122 albertel 3152: sub start_acronym {
3153: my ($target,$token) = @_;
3154: my $currentstring = '';
1.302.2.4 albertel 3155: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3156: $currentstring = $token->[4];
3157: }
3158: return $currentstring;
3159: }
3160:
3161: sub end_acronym {
3162: my ($target,$token) = @_;
3163: my $currentstring = '';
1.302.2.4 albertel 3164: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3165: $currentstring = $token->[2];
3166: }
3167: return $currentstring;
3168: }
3169:
1.181 sakharuk 3170: #-- <area> tag (end tag forbidden)
1.122 albertel 3171: sub start_area {
3172: my ($target,$token) = @_;
3173: my $currentstring = '';
1.302.2.4 albertel 3174: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3175: $currentstring = $token->[4];
3176: }
3177: return $currentstring;
3178: }
3179:
3180: sub end_area {
3181: my ($target,$token) = @_;
3182: my $currentstring = '';
1.302.2.4 albertel 3183: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3184: $currentstring = $token->[2];
3185: }
3186: return $currentstring;
3187: }
3188:
1.181 sakharuk 3189: #-- <base> tag (end tag forbidden)
1.122 albertel 3190: sub start_base {
3191: my ($target,$token) = @_;
3192: my $currentstring = '';
1.302.2.4 albertel 3193: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3194: $currentstring = $token->[4];
1.161 sakharuk 3195: }
1.122 albertel 3196: return $currentstring;
3197: }
3198:
3199: sub end_base {
3200: my ($target,$token) = @_;
3201: my $currentstring = '';
1.302.2.4 albertel 3202: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3203: $currentstring = $token->[2];
3204: }
3205: return $currentstring;
3206: }
3207:
1.181 sakharuk 3208: #-- <bdo> tag (end tag required)
1.122 albertel 3209: sub start_bdo {
3210: my ($target,$token) = @_;
3211: my $currentstring = '';
1.302.2.4 albertel 3212: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3213: $currentstring = $token->[4];
3214: }
3215: return $currentstring;
3216: }
3217:
3218: sub end_bdo {
3219: my ($target,$token) = @_;
3220: my $currentstring = '';
1.302.2.4 albertel 3221: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3222: $currentstring = $token->[2];
3223: }
3224: return $currentstring;
3225: }
3226:
1.181 sakharuk 3227: #-- <bgsound> tag (end tag optional)
1.122 albertel 3228: sub start_bgsound {
3229: my ($target,$token) = @_;
3230: my $currentstring = '';
1.302.2.4 albertel 3231: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3232: $currentstring = $token->[4];
3233: }
3234: return $currentstring;
3235: }
3236:
3237: sub end_bgsound {
3238: my ($target,$token) = @_;
3239: my $currentstring = '';
1.302.2.4 albertel 3240: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3241: $currentstring = $token->[2];
3242: }
3243: return $currentstring;
3244: }
3245:
1.181 sakharuk 3246: #-- <blink> tag (end tag required)
1.122 albertel 3247: sub start_blink {
3248: my ($target,$token) = @_;
3249: my $currentstring = '';
1.302.2.4 albertel 3250: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3251: $currentstring = $token->[4];
3252: }
3253: return $currentstring;
3254: }
3255:
3256: sub end_blink {
3257: my ($target,$token) = @_;
3258: my $currentstring = '';
1.302.2.4 albertel 3259: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3260: $currentstring = $token->[2];
3261: }
3262: return $currentstring;
3263: }
3264:
1.181 sakharuk 3265: #-- <blockquote> tag (end tag required)
1.122 albertel 3266: sub start_blockquote {
3267: my ($target,$token) = @_;
1.279 foxr 3268: my $currentstring = &end_p(); # Close any unclosed <p>
1.302.2.4 albertel 3269: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 3270: $currentstring .= $token->[4];
1.122 albertel 3271: }
3272: return $currentstring;
3273: }
3274:
3275: sub end_blockquote {
3276: my ($target,$token) = @_;
3277: my $currentstring = '';
1.302.2.4 albertel 3278: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3279: $currentstring = $token->[2];
3280: }
3281: return $currentstring;
3282: }
3283:
1.181 sakharuk 3284: #-- <button> tag (end tag required)
1.122 albertel 3285: sub start_button {
3286: my ($target,$token) = @_;
3287: my $currentstring = '';
1.302.2.4 albertel 3288: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3289: $currentstring = $token->[4];
3290: }
3291: return $currentstring;
3292: }
3293:
3294: sub end_button {
3295: my ($target,$token) = @_;
3296: my $currentstring = '';
1.302.2.4 albertel 3297: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3298: $currentstring = $token->[2];
3299: }
3300: return $currentstring;
3301: }
3302:
1.181 sakharuk 3303: #-- <caption> tag (end tag required)
1.122 albertel 3304: sub start_caption {
3305: my ($target,$token) = @_;
3306: my $currentstring = '';
1.302.2.4 albertel 3307: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3308: $currentstring = $token->[4];
3309: }
3310: return $currentstring;
3311: }
3312:
3313: sub end_caption {
3314: my ($target,$token) = @_;
3315: my $currentstring = '';
1.302.2.4 albertel 3316: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3317: $currentstring = $token->[2];
3318: }
3319: return $currentstring;
3320: }
3321:
1.181 sakharuk 3322: #-- <col> tag (end tag forbdden)
1.122 albertel 3323: sub start_col {
3324: my ($target,$token) = @_;
3325: my $currentstring = '';
1.302.2.4 albertel 3326: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3327: $currentstring = $token->[4];
3328: }
3329: return $currentstring;
3330: }
3331:
3332: sub end_col {
3333: my ($target,$token) = @_;
3334: my $currentstring = '';
1.302.2.4 albertel 3335: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3336: $currentstring = $token->[2];
3337: }
3338: return $currentstring;
3339: }
3340:
1.181 sakharuk 3341: #-- <colgroup> tag (end tag optional)
1.122 albertel 3342: sub start_colgroup {
3343: my ($target,$token) = @_;
3344: my $currentstring = '';
1.302.2.4 albertel 3345: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3346: $currentstring = $token->[4];
3347: }
3348: return $currentstring;
3349: }
3350:
3351: sub end_colgroup {
3352: my ($target,$token) = @_;
3353: my $currentstring = '';
1.302.2.4 albertel 3354: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3355: $currentstring = $token->[2];
3356: }
3357: return $currentstring;
3358: }
3359:
1.181 sakharuk 3360: #-- <del> tag (end tag required)
1.122 albertel 3361: sub start_del {
3362: my ($target,$token) = @_;
3363: my $currentstring = '';
1.302.2.4 albertel 3364: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3365: $currentstring = $token->[4];
3366: }
3367: return $currentstring;
3368: }
3369:
3370: sub end_del {
3371: my ($target,$token) = @_;
3372: my $currentstring = '';
1.302.2.4 albertel 3373: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3374: $currentstring = $token->[2];
3375: }
3376: return $currentstring;
3377: }
3378:
1.181 sakharuk 3379: #-- <fieldset> tag (end tag required)
1.122 albertel 3380: sub start_fieldset {
3381: my ($target,$token) = @_;
3382: my $currentstring = '';
1.302.2.4 albertel 3383: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3384: $currentstring = $token->[4];
3385: }
3386: return $currentstring;
3387: }
3388:
3389: sub end_fieldset {
3390: my ($target,$token) = @_;
3391: my $currentstring = '';
1.302.2.4 albertel 3392: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3393: $currentstring = $token->[2];
3394: }
3395: return $currentstring;
3396: }
3397:
1.181 sakharuk 3398: #-- <frame> tag (end tag forbidden)
1.122 albertel 3399: sub start_frame {
3400: my ($target,$token) = @_;
3401: my $currentstring = '';
1.302.2.4 albertel 3402: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3403: $currentstring = $token->[4];
3404: }
3405: return $currentstring;
3406: }
3407:
3408: sub end_frame {
3409: my ($target,$token) = @_;
3410: my $currentstring = '';
1.302.2.4 albertel 3411: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3412: $currentstring = $token->[2];
3413: }
3414: return $currentstring;
3415: }
3416:
1.181 sakharuk 3417: #-- <iframe> tag (end tag required)
1.122 albertel 3418: sub start_iframe {
3419: my ($target,$token) = @_;
3420: my $currentstring = '';
1.302.2.4 albertel 3421: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3422: $currentstring = $token->[4];
3423: }
3424: return $currentstring;
3425: }
3426:
3427: sub end_iframe {
3428: my ($target,$token) = @_;
3429: my $currentstring = '';
1.302.2.4 albertel 3430: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3431: $currentstring = $token->[2];
3432: }
3433: return $currentstring;
3434: }
3435:
1.181 sakharuk 3436: #-- <ins> tag (end tag required)
1.122 albertel 3437: sub start_ins {
3438: my ($target,$token) = @_;
3439: my $currentstring = '';
1.302.2.4 albertel 3440: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3441: $currentstring = $token->[4];
3442: }
3443: return $currentstring;
3444: }
3445:
3446: sub end_ins {
3447: my ($target,$token) = @_;
3448: my $currentstring = '';
1.302.2.4 albertel 3449: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3450: $currentstring = $token->[2];
3451: }
3452: return $currentstring;
3453: }
3454:
1.181 sakharuk 3455: #-- <isindex> tag (end tag forbidden)
1.122 albertel 3456: sub start_isindex {
3457: my ($target,$token) = @_;
3458: my $currentstring = '';
1.302.2.4 albertel 3459: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3460: $currentstring = $token->[4];
3461: }
3462: return $currentstring;
3463: }
3464:
3465: sub end_isindex {
3466: my ($target,$token) = @_;
3467: my $currentstring = '';
1.302.2.4 albertel 3468: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3469: $currentstring = $token->[2];
3470: }
3471: return $currentstring;
3472: }
3473:
1.181 sakharuk 3474: #-- <keygen> tag (end tag forbidden)
1.122 albertel 3475: sub start_keygen {
3476: my ($target,$token) = @_;
3477: my $currentstring = '';
1.302.2.4 albertel 3478: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3479: $currentstring = $token->[4];
3480: }
3481: return $currentstring;
3482: }
3483:
3484: sub end_keygen {
3485: my ($target,$token) = @_;
3486: my $currentstring = '';
1.302.2.4 albertel 3487: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3488: $currentstring = $token->[2];
3489: }
3490: return $currentstring;
3491: }
3492:
3493: #-- <label> tag
3494: sub start_label {
3495: my ($target,$token) = @_;
3496: my $currentstring = '';
1.302.2.4 albertel 3497: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3498: $currentstring = $token->[4];
3499: }
3500: return $currentstring;
3501: }
3502:
3503: sub end_label {
3504: my ($target,$token) = @_;
3505: my $currentstring = '';
1.302.2.4 albertel 3506: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3507: $currentstring = $token->[2];
3508: }
3509: return $currentstring;
3510: }
3511:
1.181 sakharuk 3512: #-- <layer> tag (end tag required)
1.122 albertel 3513: sub start_layer {
3514: my ($target,$token) = @_;
3515: my $currentstring = '';
1.302.2.4 albertel 3516: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3517: $currentstring = $token->[4];
3518: }
3519: return $currentstring;
3520: }
3521:
3522: sub end_layer {
3523: my ($target,$token) = @_;
3524: my $currentstring = '';
1.302.2.4 albertel 3525: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3526: $currentstring = $token->[2];
3527: }
3528: return $currentstring;
3529: }
3530:
1.181 sakharuk 3531: #-- <legend> tag (end tag required)
1.122 albertel 3532: sub start_legend {
3533: my ($target,$token) = @_;
3534: my $currentstring = '';
1.302.2.4 albertel 3535: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3536: $currentstring = $token->[4];
3537: }
3538: return $currentstring;
3539: }
3540:
3541: sub end_legend {
3542: my ($target,$token) = @_;
3543: my $currentstring = '';
1.302.2.4 albertel 3544: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3545: $currentstring = $token->[2];
3546: }
3547: return $currentstring;
3548: }
3549:
1.181 sakharuk 3550: #-- <link> tag (end tag forbidden)
1.122 albertel 3551: sub start_link {
1.292 albertel 3552: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 3553: my $currentstring = '';
1.302.2.5! albertel 3554: if ($target eq 'web' || $target eq 'webgrade') {
1.291 albertel 3555: my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
3556: undef,1);
3557: &Apache::lonxml::extlink($href);
1.122 albertel 3558: $currentstring = $token->[4];
3559: }
3560: return $currentstring;
3561: }
3562:
3563: sub end_link {
3564: my ($target,$token) = @_;
3565: my $currentstring = '';
1.302.2.4 albertel 3566: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3567: $currentstring = $token->[2];
3568: }
3569: return $currentstring;
3570: }
3571:
1.181 sakharuk 3572: #-- <marquee> tag (end tag optional)
1.122 albertel 3573: sub start_marquee {
3574: my ($target,$token) = @_;
3575: my $currentstring = '';
1.302.2.4 albertel 3576: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3577: $currentstring = $token->[4];
3578: }
3579: return $currentstring;
3580: }
3581:
3582: sub end_marquee {
3583: my ($target,$token) = @_;
3584: my $currentstring = '';
1.302.2.4 albertel 3585: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3586: $currentstring = $token->[2];
3587: }
3588: return $currentstring;
3589: }
3590:
1.179 sakharuk 3591: #-- <multicol> tag (end tag required)
3592: sub start_multicol {
1.122 albertel 3593: my ($target,$token) = @_;
1.279 foxr 3594: my $currentstring = &end_p(); # Close any pending <p>
1.302.2.4 albertel 3595: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 3596: $currentstring .= $token->[4];
1.122 albertel 3597: }
3598: return $currentstring;
3599: }
3600:
1.179 sakharuk 3601: sub end_multicol {
1.122 albertel 3602: my ($target,$token) = @_;
3603: my $currentstring = '';
1.302.2.4 albertel 3604: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3605: $currentstring = $token->[2];
3606: }
3607: return $currentstring;
3608: }
3609:
1.179 sakharuk 3610: #-- <nobr> tag (end tag required)
1.122 albertel 3611: sub start_nobr {
3612: my ($target,$token) = @_;
3613: my $currentstring = '';
1.302.2.4 albertel 3614: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3615: $currentstring = $token->[4];
1.179 sakharuk 3616: } elsif ($target eq 'tex') {
3617: $currentstring='\mbox{';
3618: }
1.122 albertel 3619: return $currentstring;
3620: }
3621:
3622: sub end_nobr {
3623: my ($target,$token) = @_;
3624: my $currentstring = '';
1.302.2.4 albertel 3625: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3626: $currentstring = $token->[2];
1.179 sakharuk 3627: } elsif ($target eq 'tex') {
3628: $currentstring='}';
3629: }
1.122 albertel 3630: return $currentstring;
3631: }
3632:
1.179 sakharuk 3633: #-- <noembed> tag (end tag required)
1.122 albertel 3634: sub start_noembed {
3635: my ($target,$token) = @_;
3636: my $currentstring = '';
1.302.2.4 albertel 3637: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3638: $currentstring = $token->[4];
3639: }
3640: return $currentstring;
3641: }
3642:
3643: sub end_noembed {
3644: my ($target,$token) = @_;
3645: my $currentstring = '';
1.302.2.4 albertel 3646: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3647: $currentstring = $token->[2];
3648: }
3649: return $currentstring;
3650: }
3651:
1.179 sakharuk 3652: #-- <noframes> tag (end tag required)
1.122 albertel 3653: sub start_noframes {
3654: my ($target,$token) = @_;
3655: my $currentstring = '';
1.302.2.4 albertel 3656: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3657: $currentstring = $token->[4];
3658: }
3659: return $currentstring;
3660: }
3661:
3662: sub end_noframes {
3663: my ($target,$token) = @_;
3664: my $currentstring = '';
1.302.2.4 albertel 3665: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3666: $currentstring = $token->[2];
3667: }
3668: return $currentstring;
3669: }
3670:
1.179 sakharuk 3671: #-- <nolayer> tag (end tag required)
1.122 albertel 3672: sub start_nolayer {
3673: my ($target,$token) = @_;
3674: my $currentstring = '';
1.302.2.4 albertel 3675: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3676: $currentstring = $token->[4];
3677: }
3678: return $currentstring;
3679: }
3680:
3681: sub end_nolayer {
3682: my ($target,$token) = @_;
3683: my $currentstring = '';
1.302.2.4 albertel 3684: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3685: $currentstring = $token->[2];
3686: }
3687: return $currentstring;
3688: }
3689:
1.179 sakharuk 3690: #-- <noscript> tag (end tag required)
1.122 albertel 3691: sub start_noscript {
3692: my ($target,$token) = @_;
3693: my $currentstring = '';
1.302.2.4 albertel 3694: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3695: $currentstring = $token->[4];
3696: }
3697: return $currentstring;
3698: }
3699:
3700: sub end_noscript {
3701: my ($target,$token) = @_;
3702: my $currentstring = '';
1.302.2.4 albertel 3703: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3704: $currentstring = $token->[2];
3705: }
3706: return $currentstring;
3707: }
3708:
1.179 sakharuk 3709: #-- <object> tag (end tag required)
1.122 albertel 3710: sub start_object {
3711: my ($target,$token) = @_;
3712: my $currentstring = '';
1.302.2.4 albertel 3713: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3714: $currentstring = $token->[4];
3715: }
3716: return $currentstring;
3717: }
3718:
3719: sub end_object {
3720: my ($target,$token) = @_;
3721: my $currentstring = '';
1.302.2.4 albertel 3722: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3723: $currentstring = $token->[2];
3724: }
3725: return $currentstring;
3726: }
3727:
1.179 sakharuk 3728: #-- <optgroup> tag (end tag required)
1.122 albertel 3729: sub start_optgroup {
3730: my ($target,$token) = @_;
3731: my $currentstring = '';
1.302.2.4 albertel 3732: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3733: $currentstring = $token->[4];
3734: }
3735: return $currentstring;
3736: }
3737:
3738: sub end_optgroup {
3739: my ($target,$token) = @_;
3740: my $currentstring = '';
1.302.2.4 albertel 3741: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3742: $currentstring = $token->[2];
3743: }
3744: return $currentstring;
3745: }
3746:
1.179 sakharuk 3747: #-- <samp> tag (end tag required)
1.122 albertel 3748: sub start_samp {
3749: my ($target,$token) = @_;
3750: my $currentstring = '';
1.302.2.4 albertel 3751: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3752: $currentstring = $token->[4];
1.179 sakharuk 3753: } elsif ($target eq 'tex') {
3754: $currentstring='\texttt{';
3755: }
1.122 albertel 3756: return $currentstring;
3757: }
3758:
3759: sub end_samp {
3760: my ($target,$token) = @_;
3761: my $currentstring = '';
1.302.2.4 albertel 3762: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3763: $currentstring = $token->[2];
1.179 sakharuk 3764: } elsif ($target eq 'tex') {
3765: $currentstring='}';
3766: }
1.122 albertel 3767: return $currentstring;
3768: }
3769:
3770: #-- <server> tag
3771: sub start_server {
3772: my ($target,$token) = @_;
3773: my $currentstring = '';
1.302.2.4 albertel 3774: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3775: $currentstring = $token->[4];
3776: }
3777: return $currentstring;
3778: }
3779:
3780: sub end_server {
3781: my ($target,$token) = @_;
3782: my $currentstring = '';
1.302.2.4 albertel 3783: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3784: $currentstring = $token->[2];
3785: }
3786: return $currentstring;
3787: }
3788:
1.179 sakharuk 3789: #-- <spacer> tag (end tag forbidden)
1.122 albertel 3790: sub start_spacer {
3791: my ($target,$token) = @_;
1.279 foxr 3792: my $currentstring = &end_p(); # Close off any open <p> tag.
1.302.2.4 albertel 3793: if ($target eq 'web' || $target eq 'webgrade') {
1.277 foxr 3794: $currentstring .= $token->[4];
1.122 albertel 3795: }
3796: return $currentstring;
3797: }
3798:
3799: sub end_spacer {
3800: my ($target,$token) = @_;
3801: my $currentstring = '';
1.302.2.4 albertel 3802: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3803: $currentstring = $token->[2];
3804: }
3805: return $currentstring;
3806: }
3807:
1.179 sakharuk 3808: #-- <span> tag (end tag required)
1.122 albertel 3809: sub start_span {
3810: my ($target,$token) = @_;
3811: my $currentstring = '';
1.302.2.4 albertel 3812: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3813: $currentstring = $token->[4];
3814: }
3815: return $currentstring;
3816: }
3817:
3818: sub end_span {
3819: my ($target,$token) = @_;
3820: my $currentstring = '';
1.302.2.4 albertel 3821: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3822: $currentstring = $token->[2];
3823: }
3824: return $currentstring;
3825: }
3826:
1.179 sakharuk 3827: #-- <tbody> tag (end tag optional)
1.122 albertel 3828: sub start_tbody {
3829: my ($target,$token) = @_;
3830: my $currentstring = '';
1.302.2.4 albertel 3831: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3832: $currentstring = $token->[4];
3833: }
3834: return $currentstring;
3835: }
3836:
3837: sub end_tbody {
3838: my ($target,$token) = @_;
3839: my $currentstring = '';
1.302.2.4 albertel 3840: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3841: $currentstring = $token->[2];
3842: }
3843: return $currentstring;
3844: }
3845:
1.166 sakharuk 3846: #-- <tfoot> tag (end tag optional)
1.122 albertel 3847: sub start_tfoot {
3848: my ($target,$token) = @_;
3849: my $currentstring = '';
1.302.2.4 albertel 3850: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3851: $currentstring = $token->[4];
3852: }
3853: return $currentstring;
3854: }
3855:
3856: sub end_tfoot {
3857: my ($target,$token) = @_;
3858: my $currentstring = '';
1.302.2.4 albertel 3859: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3860: $currentstring = $token->[2];
3861: }
3862: return $currentstring;
3863: }
3864:
1.166 sakharuk 3865: #-- <thead> tag (end tag optional)
1.122 albertel 3866: sub start_thead {
3867: my ($target,$token) = @_;
3868: my $currentstring = '';
1.302.2.4 albertel 3869: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3870: $currentstring = $token->[4];
3871: }
3872: return $currentstring;
3873: }
1.10 www 3874:
1.122 albertel 3875: sub end_thead {
3876: my ($target,$token) = @_;
3877: my $currentstring = '';
1.302.2.4 albertel 3878: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3879: $currentstring = $token->[2];
3880: }
3881: return $currentstring;
3882: }
1.119 www 3883:
1.122 albertel 3884: #-- <var> tag
3885: sub start_var {
1.44 sakharuk 3886: my ($target,$token) = @_;
3887: my $currentstring = '';
1.302.2.4 albertel 3888: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3889: $currentstring = $token->[4];
1.163 sakharuk 3890: } elsif ($target eq 'tex') {
3891: $currentstring = '\textit{';
3892: }
1.44 sakharuk 3893: return $currentstring;
3894: }
1.10 www 3895:
1.122 albertel 3896: sub end_var {
3897: my ($target,$token) = @_;
1.44 sakharuk 3898: my $currentstring = '';
1.302.2.4 albertel 3899: if ($target eq 'web' || $target eq 'webgrade') {
1.163 sakharuk 3900: $currentstring = $token->[2];
3901: } elsif ($target eq 'tex') {
3902: $currentstring = '}';
1.44 sakharuk 3903: }
3904: return $currentstring;
3905: }
1.119 www 3906:
1.163 sakharuk 3907: #-- <wbr> tag (end tag forbidden)
1.122 albertel 3908: sub start_wbr {
3909: my ($target,$token) = @_;
3910: my $currentstring = '';
1.302.2.4 albertel 3911: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3912: $currentstring = $token->[4];
3913: }
3914: return $currentstring;
1.98 albertel 3915: }
3916:
1.122 albertel 3917: sub end_wbr {
3918: my ($target,$token) = @_;
3919: my $currentstring = '';
1.302.2.4 albertel 3920: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3921: $currentstring = $token->[2];
3922: }
3923: return $currentstring;
1.98 albertel 3924: }
1.134 sakharuk 3925:
3926: #-- <hideweboutput> tag
3927: sub start_hideweboutput {
3928: my ($target,$token) = @_;
1.302.2.4 albertel 3929: if ($target eq 'web' || $target eq 'webgrade') {
1.134 sakharuk 3930: &Apache::lonxml::startredirection();
3931: }
3932: return '';
3933: }
3934:
3935: sub end_hideweboutput {
3936: my ($target,$token) = @_;
3937: my $currentstring = '';
1.302.2.4 albertel 3938: if ($target eq 'web' || $target eq 'webgrade') {
1.134 sakharuk 3939: $currentstring = &Apache::lonxml::endredirection();
3940: }
3941: return '';
3942: }
3943:
1.94 sakharuk 3944:
3945: sub image_replication {
3946: my $src = shift;
1.187 albertel 3947: if (not -e $src) { &Apache::lonnet::repcopy($src); }
3948: #replicates eps or ps
3949: my $epssrc = my $pssrc = $src;
3950: $epssrc =~ s/\.(gif|jpg|jpeg|png)$/.eps/i;
3951: $pssrc =~ s/\.(gif|jpg|jpeg|png)$/.ps/i;
3952: if (not -e $epssrc && not -e $pssrc) {
3953: my $result=&Apache::lonnet::repcopy($epssrc);
1.264 raeburn 3954: if ($result ne 'ok') { &Apache::lonnet::repcopy($pssrc); }
1.94 sakharuk 3955: }
3956: return '';
1.195 sakharuk 3957: }
1.275 foxr 3958: #
3959: # Get correct sizing parameter for an image given
3960: # it's initial ht. and wid. This allows sizing of
3961: # images that are generated on-the-fly (e.g. gnuplot)
3962: # as well as serving as a utility for image_size.
3963: #
3964: # Parameter:
3965: # height_param
3966: # width_param - Initial picture dimensions.
3967: # scaling - A scale factor.
3968: # parstack, - the current stack of tag attributes
3969: # from the xml parser
3970: # safeeval, - pointer to the safespace
3971: # depth, - from what level in the stack to look for attributes
3972: # (assumes -1 if unspecified)
3973: # cis - look for attrubutes case insensitively
3974: # (assumes false)
3975: #
3976: # Returns:
3977: # height, width - new dimensions.
3978: #
3979: sub resize_image {
3980: my ($height_param, $width_param, $scaling,
3981: $parstack, $safeeval, $depth, $cis) = @_;
3982:
3983: # First apply the scaling...
1.271 foxr 3984:
1.275 foxr 3985: $height_param = $height_param * $scaling;
3986: $width_param = $width_param * $scaling;
1.261 foxr 3987:
1.197 sakharuk 3988: #do we have any specified LaTeX size of the picture?
1.261 foxr 3989: my $toget='TeXwidth';
3990: if ($cis) {
3991: $toget=lc($toget);
3992: }
1.256 albertel 3993: my $TeXwidth = &Apache::lonxml::get_param($toget,$parstack,
3994: $safeeval,$depth,$cis);
3995: $toget='TeXheight'; if ($cis) { $toget=lc($toget); }
3996: my $TeXheight = &Apache::lonxml::get_param($toget,$parstack,
3997: $safeeval,$depth,$cis);
1.197 sakharuk 3998: #do we have any specified web size of the picture?
3999: my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval,
1.256 albertel 4000: $depth,1);
4001: if ($TeXwidth) {
1.252 matthew 4002: my $old_width_param=$width_param;
1.197 sakharuk 4003: if ($TeXwidth=~/(\d+)\s*\%/) {
1.267 albertel 4004: $width_param = $1*$env{'form.textwidth'}/100;
1.197 sakharuk 4005: } else {
4006: $width_param = $TeXwidth;
4007: }
1.266 albertel 4008: if ($TeXheight) {
4009: $height_param = $TeXheight;
4010: } elsif ($old_width_param) {
4011: $height_param=$TeXwidth/$old_width_param*$height_param;
4012: }
1.256 albertel 4013: } elsif ($TeXheight) {
1.248 foxr 4014: $height_param = $TeXheight;
1.266 albertel 4015: if ($height_param) {
4016: $width_param = $TeXheight/$height_param*$width_param;
4017: }
1.256 albertel 4018: } elsif ($width) {
1.252 matthew 4019: my $old_width_param=$width_param;
1.256 albertel 4020: $width_param = $width*$scaling;
1.266 albertel 4021: if ($old_width_param) {
4022: $height_param=$width_param/$old_width_param*$height_param;
4023: }
1.252 matthew 4024: }
1.267 albertel 4025: if ($width_param > $env{'form.textwidth'}) {
1.252 matthew 4026: my $old_width_param=$width_param;
1.267 albertel 4027: $width_param =0.95*$env{'form.textwidth'};
1.266 albertel 4028: if ($old_width_param) {
4029: $height_param=$width_param/$old_width_param*$height_param;
4030: }
1.197 sakharuk 4031: }
1.275 foxr 4032:
4033: return ($height_param, $width_param);
4034: }
4035:
4036: sub image_size {
4037: my ($src,$scaling,$parstack,$safeeval,$depth,$cis)=@_;
4038:
4039: #size of image from gif/jpg/jpeg/png
4040: my $ressrc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
4041: if (-e $ressrc) {
4042: $src = $ressrc;
4043: }
4044: my $image = Image::Magick->new;
4045: my $current_figure = $image->Read($src);
4046: my $width_param = $image->Get('width');
4047: my $height_param = $image->Get('height');
4048: &Apache::lonxml::debug("Image magick says: $src : Height = $height_param width = $width_param");
4049: undef($image);
4050:
4051: ($height_param, $width_param) = &resize_image($height_param, $width_param,
4052: $scaling, $parstack, $safeeval,
4053: $depth, $cis);
4054:
1.248 foxr 4055: return ($height_param, $width_param);
4056: }
4057:
4058: sub image_width {
4059: my ($height, $width) = &image_size(@_);
4060: return $width;
4061: }
4062: # Not yet 100% sure this is correct in all circumstances..
4063: # due to my uncertainty about mods to image_size.
4064: #
4065: sub image_height {
4066: my ($height, $width) = &image_size(@_);
4067: return $height;
1.197 sakharuk 4068: }
4069:
1.256 albertel 4070: sub get_eps_image {
4071: my ($src)=@_;
1.261 foxr 4072: my $orig_src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1], $src);
1.285 foxr 4073:
4074: # In order to prevent the substitution of the alt text, we need to
4075: # be sure the orig_src file is on system now so:
4076:
4077: if (! -e $orig_src) {
4078: &Apache::lonnet::repcopy($orig_src); # Failure is not completely fatal.
4079: }
1.275 foxr 4080: &Apache::lonxml::debug("get_eps_image: Original image: $orig_src");
1.282 foxr 4081: my ($spath, $sname, $sext) = fileparse($src, qr/\.(gif|png|jpg|jpeg)/i);
1.256 albertel 4082: $src=~s/\.(gif|png|jpg|jpeg)$/\.eps/i;
4083: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.275 foxr 4084: &Apache::lonxml::debug("Filelocation gives: $src");
1.256 albertel 4085: if (! -e $src) {
1.261 foxr 4086: &Apache::lonxml::debug("$src does not exist");
1.264 raeburn 4087: if (&Apache::lonnet::repcopy($src) ne 'ok' ) {
1.261 foxr 4088: &Apache::lonxml::debug("Repcopy of $src failed (1)");
1.256 albertel 4089: #if replication failed try to find ps file
4090: $src=~s/\.eps$/\.ps/;
1.261 foxr 4091: &Apache::lonxml::debug("Now looking for $src");
1.270 foxr 4092: #if no ps file try to replicate it.
4093: my $didrepcopy = &Apache::lonnet::repcopy($src);
4094: &Apache::lonxml::debug("repcopy of $src ... $didrepcopy");
4095: if ( (not -e $src) ||
4096: ($didrepcopy ne 'ok')) {
1.261 foxr 4097: &Apache::lonxml::debug("Failed to find or replicate $src");
4098:
1.256 albertel 4099: #if replication failed try to produce eps file dynamically
4100: $src=~s/\.ps$/\.eps/;
4101: my $temp_file;
1.267 albertel 4102: open(FILE,">>/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat");
1.256 albertel 4103: my $newsrc=$orig_src;
4104: $newsrc =~ s|(.*)/res/|/home/httpd/html/res/|;
1.275 foxr 4105: &Apache::lonxml::debug("queueing $newsrc for dynamic eps production.");
1.256 albertel 4106: print FILE "$newsrc\n";
1.261 foxr 4107: close FILE;
1.256 albertel 4108: $src=~s|/home/httpd/html/res|/home/httpd/prtspool|;
4109: $src=~s|/home/([^/]*)/public_html/|/home/httpd/prtspool/$1/|;
1.283 albertel 4110: if ($sext ne "") { # Put the ext. back in to uniquify.
4111: $src =~ s/\.eps$/$sext.eps/;
4112: }
1.256 albertel 4113: }
4114: }
4115: }
4116: my ($path,$file)=($src=~m|(.*)/([^/]*)$|);
1.261 foxr 4117: &Apache::lonxml::debug("get_eps_image returning: $path / $file<BR />");
1.256 albertel 4118: return ($path.'/',$file);
4119: }
4120:
1.195 sakharuk 4121: sub eps_generation {
4122: my ($src,$file,$width_param) = @_;
1.267 albertel 4123: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat";
1.195 sakharuk 4124: my $temp_file = Apache::File->new('>>'.$filename);
4125: print $temp_file "$src\n";
4126: my $newsrc = $src;
4127: $newsrc =~ s/(\.gif|\.jpg|\.jpeg)$/\.eps/i;
4128: $newsrc=~s/\/home\/httpd\/html\/res//;
4129: $newsrc=~s/\/home\/([^\/]*)\/public_html\//\/$1\//;
4130: $newsrc=~s/\/\.\//\//;
4131: $newsrc=~s/\/([^\/]+)\.(ps|eps)/\//;
1.213 sakharuk 4132: if ($newsrc=~/\/home\/httpd\/lonUsers\//) {
4133: $newsrc=~s/\/home\/httpd\/lonUsers//;
4134: $newsrc=~s/\/([^\/]+)\/(\w)\/(\w)\/(\w)\//\/$1\//;
4135: }
1.239 sakharuk 4136: if ($newsrc=~/\/userfiles\//) {
4137: return ' \graphicspath{{'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4138: } else {
4139: return ' \graphicspath{{/home/httpd/prtspool'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4140: }
1.197 sakharuk 4141: }
4142:
4143: sub file_path {
4144: my $src=shift;
4145: my ($file,$path);
4146: if ($src =~ m!(.*)/([^/]*)$!) {
4147: $file = $2;
4148: $path = $1.'/';
4149: }
4150: return $file,$path;
1.126 sakharuk 4151: }
1.294 foxr 4152: # Converts a measurement in to mm from any of
4153: # the other valid LaTeX units of measure.
4154: # If the units of measure are missing from the
4155: # parameter, it is assumed to be in and returned
4156: # with mm units of measure
1.126 sakharuk 4157: sub recalc {
4158: my $argument = shift;
4159: if (not $argument=~/(mm|cm|in|pc|pt)/) {return $argument.' mm';}
1.132 sakharuk 4160: $argument=~/\s*(\d+\.?\d*)\s*(mm|cm|in|pc|pt)/;
1.126 sakharuk 4161: my $value=$1;
4162: my $units=$2;
4163: if ($units eq 'cm') {
4164: $value*=10;
4165: } elsif ($units eq 'in') {
4166: $value*=25.4;
4167: } elsif ($units eq 'pc') {
4168: $value*=(25.4*12/72.27);
4169: } elsif ($units eq 'pt') {
4170: $value*=(25.4/72.27);
4171: }
4172: return $value.' mm';
1.94 sakharuk 4173: }
1.184 sakharuk 4174:
4175: sub LATEX_length {
4176: my $garbage=shift;
1.206 sakharuk 4177: $garbage=~s/^\s+$//;
4178: $garbage=~s/^\s+(\S.*)/$1/;#space before
4179: $garbage=~s/(.*\S)\s+$/$1/;#space after
4180: $garbage=~s/(\s)+/$1/;#only one space
4181: $garbage=~s/(\\begin{([^\}]+)}|\\end{([^\}]+)})//g;#remove LaTeX \begin{...} and \end{...}
4182: $garbage=~s/(\$\_\{|\$\_|\$\^{|\$\^|\}\$)//g;#remove $_{,$_,$^{,$^,}$
4183: $garbage=~s/([^\\])\$/$1/g;#$
4184: $garbage=~s/(\\ensuremath\{\_\{|\\ensuremath\{\_|\\ensuremath\{\^{|\\ensuremath\{\^|\})//g;#remove \ensuremath{...}
4185: $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 4186: $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;
4187: $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;
4188: $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 4189: $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;
4190: $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;
4191: $garbage=~s/(\\hat{([^}]+)}|\\check{([^}]+)}|\\dot{([^}]+)}|\\breve{([^}]+)}|\\acute{([^}]+)}|\\ddot{([^}]+)}|\\grave{([^}]+)}|\\tilde{([^}]+)}|\\mathring{([^}]+)}|\\bar{([^}]+)}|\\vec{([^}]+)})/$1/g;
4192: #remove some other LaTeX command
4193: $garbage=~s|\\(\w+)\\|\\|g;
4194: $garbage=~s|\\(\w+)(\s*)|$2|g;
4195: $garbage=~s|\+|11|g;
1.184 sakharuk 4196: my $value=length($garbage);
4197: return $value;
4198: }
4199:
4200:
1.287 foxr 4201: # is_inside_of $tagstack $tag
4202: # This sub returns true if the current state of Xml processing
4203: # is inside of the tag.
4204: # Parameters:
4205: # tagstack - The tagstack from the parser.
4206: # tag - The tag (without the <>'s.).
4207: # Sample usage:
4208: # if (is_inside_of($tagstack "table")) {
4209: # # I'm in a table....
4210: # }
4211: sub is_inside_of {
4212: my ($tagstack, $tag) = @_;
4213: my @stack = @$tagstack;
4214: for (my $i = ($#stack - 1); $i >= 0; $i--) {
4215: if ($stack[$i] eq $tag) {
4216: return 1;
4217: }
4218: }
4219: return 0;
4220: }
1.184 sakharuk 4221:
1.94 sakharuk 4222:
1.1 sakharuk 4223: 1;
4224: __END__
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