Annotation of loncom/xml/londefdef.pm, revision 1.470
1.1 sakharuk 1: # The LearningOnline Network with CAPA
1.468 raeburn 2: # Tags Default Definition Module
3: #
1.470 ! raeburn 4: # $Id: londefdef.pm,v 1.469 2023/03/15 16:57:06 raeburn Exp $
1.1 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/
1.468 raeburn 28: ## Copyright for TtHfunc and TtMfunc by Ian Hutchinson.
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
1.34 www 32: # distributed are hereby licensed only for use in the context
1.468 raeburn 33: # of a program or computational system for which the Licensee is the
34: # primary author or distributor, and which performs substantial
1.34 www 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:
1.468 raeburn 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;
1.398 foxr 45: use Apache::lontable;
1.70 sakharuk 46: use Image::Magick;
1.118 www 47: use Apache::lonmenu();
48: use Apache::lonmeta();
1.389 www 49: use Apache::lonlocal;
1.427 raeburn 50: use Apache::loncommon();
1.187 albertel 51: use Apache::Constants qw(:common);
1.282 foxr 52: use File::Basename;
1.345 albertel 53: use LONCAPA();
1.302 foxr 54: # use Data::Dumper;
1.160 sakharuk 55:
1.38 harris41 56: BEGIN {
1.15 sakharuk 57:
1.438 droeschl 58: &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','style','sub','sup','table','tbody','td','textarea','tfoot','th','thead','title','tr','tt','tthoption','u','ul','var','wbr','hideweboutput'));
1.15 sakharuk 59:
1.188 albertel 60: }
61:
1.398 foxr 62:
1.188 albertel 63: sub initialize_londefdef {
64: $Apache::londefdef::TD_redirection=0;
65: @Apache::londefdef::table = ();
66: $Apache::londefdef::select=0;
1.243 albertel 67: undef(@Apache::londefdef::description);
68: @Apache::londefdef::DD=(0);
69: @Apache::londefdef::DT=(0);
1.244 albertel 70: @Apache::londefdef::seenDT=(0);
1.238 albertel 71: $Apache::londefdef::list_index=0;
1.327 albertel 72: undef($Apache::londefdef::head);
73: undef($Apache::londefdef::title);
1.3 sakharuk 74: }
1.1 sakharuk 75:
1.35 sakharuk 76: #======================= TAG SUBROUTINES =====================
1.8 sakharuk 77: #-- <output>
1.21 albertel 78: sub start_output {
1.122 albertel 79: my ($target) = @_;
80: if ($target eq 'meta') { $Apache::lonxml::metamode--; }
81: return '';
1.21 albertel 82: }
83: sub end_output {
1.122 albertel 84: my ($target) = @_;
85: if ($target eq 'meta') { $Apache::lonxml::metamode++; }
86: return '';
1.21 albertel 87: }
1.4 sakharuk 88: #-- <m> tag
1.33 albertel 89: sub start_m {
1.190 albertel 90: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 91: my $currentstring = '';
1.193 albertel 92: my $inside = &Apache::lonxml::get_all_text_unbalanced("/m",$parser);
1.191 albertel 93: if ($target eq 'web' || $target eq 'analyze') {
1.122 albertel 94: &Apache::lonxml::debug("M is starting with:$inside:");
1.458 damieng 95: if (!($inside =~ /^\s*\$.*\$\s*$/ || $inside =~ /^\s*\\[([].*\\[)\]]\s*$/)) {
96: # Non-math LaTeX will not be rendered correctly with MathJax
97: # and it should be avoided anyway.
98: # On top of that, MathJax will render math without $, but
99: # it will fail with tth. This is worth a warning.
100: # (even though some people might just use latex for printing)
1.465 raeburn 101: &Apache::lonxml::warning(&mt('Missing $ in [_1].','<m>'));
1.466 raeburn 102: } elsif (($env{'browser.type'} eq 'safari') && ($env{'form.editxmltext'}) &&
103: (($env{'form.problemmode'} eq 'view') || ($env{'form.problemmode'} eq 'discard'))) {
104: my $delimiter;
105: if ($inside =~ /\$$/) {
106: $delimiter = '$';
107: } elsif ($inside =~ /\\([)\]])$/) {
108: $delimiter = $1;
109: }
110: if ($delimiter) {
111: &Apache::lonxml::warning(&mt('Insert a space between [_1] and [_2].',
112: $delimiter,'</m>'));
113: }
1.458 damieng 114: }
1.122 albertel 115: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
116: if ($eval eq 'on') {
117: $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
1.392 bisitz 118: #&Apache::lonxml::debug("M is evaluated to:$inside:");
1.122 albertel 119: }
1.317 albertel 120: my $tex = $inside;
1.276 albertel 121: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
122: $currentstring = &Apache::lontexconvert::converted(\$inside,$display);
1.122 albertel 123: if ($Apache::lontexconvert::errorstring) {
1.392 bisitz 124: my $errormsg='<pre>'.&HTML::Entities::encode($Apache::lontexconvert::errorstring,'<>&"').'</pre> occurred while attempting to convert this TeX: <pre>';
1.317 albertel 125: $tex = &HTML::Entities::encode($tex,'<>&"');
126: my ($linenumber) =
127: ($Apache::lontexconvert::errorstring =~ /Line (\d+)/);
128: if (defined($linenumber)) {
129: my @tex=split("\n",$tex);
130: $tex[$linenumber]='<b><font color="red">'.
131: $tex[$linenumber].'</font></b>';
132: $tex=join("\n",@tex);
133: }
134: &Apache::lonxml::warning($errormsg.$tex.'</pre>');
1.122 albertel 135: $Apache::lontexconvert::errorstring='';
136: }
137: #&Apache::lonxml::debug("M is ends with:$currentstring:");
1.178 albertel 138: $Apache::lonxml::post_evaluate=0;
1.122 albertel 139: } elsif ($target eq 'tex') {
1.360 foxr 140:
1.190 albertel 141: $currentstring = $inside;
1.178 albertel 142: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
143: if ($eval eq 'on') {
144: $currentstring=&Apache::run::evaluate($currentstring,$safeeval,$$parstack[-1]);
145: }
1.122 albertel 146: if ($currentstring=~/^(\s*\\\\\s*)*$/) {$currentstring = ' \vskip 0 mm ';}
1.257 albertel 147: # detect simple math mode entry exits, and convert them
1.360 foxr 148: # to use \ensuremath ... unless there's a \verb inside.
149: if (! ($currentstring=~/\\verb/)) {
1.395 raeburn 150: if ($currentstring=~/^\s*\$[^\$].*\$\s*$/) {
1.360 foxr 151: $currentstring=~s/^(\s*)\$/$1/;
152: $currentstring=~s/\$(\s*)$/$1/;
153: $currentstring='\ensuremath{'.$currentstring.'}';
154: }
1.257 albertel 155: }
1.178 albertel 156: $Apache::lonxml::post_evaluate=0;
1.122 albertel 157: }
158: return $currentstring;
1.33 albertel 159: }
1.122 albertel 160:
1.33 albertel 161: sub end_m {
1.122 albertel 162: my ($target,$token) = @_;
163: my $currentstring = '';
1.204 albertel 164: if ($target eq 'tex') {
1.122 albertel 165: $currentstring = "";
166: }
167: return $currentstring;
1.33 albertel 168: }
1.110 albertel 169:
170: sub start_tthoption {
1.299 albertel 171: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 172: my $result;
1.325 albertel 173: if ($target eq 'web' || $target eq 'webgrade') {
1.299 albertel 174: my $inside = &Apache::lonxml::get_all_text("/tthoption",$parser,
175: $style);
1.122 albertel 176: $inside=~s/^\s*//;
1.267 albertel 177: if ($env{'browser.mathml'}) {
1.122 albertel 178: &tth::ttmoptions($inside);
179: } else {
180: &tth::tthoptions($inside);
181: }
182: }
183: return $result;
1.110 albertel 184: }
185:
186: sub end_tthoption {
1.122 albertel 187: my ($target,$token) = @_;
188: my $result;
189: return $result;
1.110 albertel 190: }
191:
1.181 sakharuk 192: #-- <html> tag (end tag optional)
1.100 albertel 193: sub start_html {
194: my ($target,$token) = @_;
195: my $currentstring = '';
1.269 albertel 196: if ($target eq 'web' || $target eq 'edit' || $target eq 'webgrade' ) {
1.468 raeburn 197: # start_body() takes care of emitting the <html>
1.100 albertel 198: } elsif ($target eq 'tex') {
1.391 onken 199:
1.399 foxr 200: $currentstring .= &latex_header();
1.100 albertel 201: }
202: return $currentstring;
203: }
1.122 albertel 204:
205: sub end_html {
1.232 sakharuk 206: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 207: my $currentstring = '';
1.324 albertel 208: if ($target eq 'web' || $target eq 'webgrade') {
1.327 albertel 209: # end_body takes care of the </html>
1.122 albertel 210: }
211: return $currentstring;
212: }
213:
1.181 sakharuk 214: #-- <head> tag (end tag optional)
1.122 albertel 215: sub start_head {
216: my ($target,$token) = @_;
217: my $currentstring = '';
1.324 albertel 218: if ($target eq 'web' || $target eq 'webgrade') {
1.327 albertel 219: &Apache::lonxml::startredirection();
1.468 raeburn 220: }
1.122 albertel 221: return $currentstring;
222: }
223:
224: sub end_head {
225: my ($target,$token) = @_;
226: my $currentstring = '';
1.324 albertel 227: if (($target eq 'web' && $env{'request.state'} eq 'published') ||
228: ($target eq 'webgrade' && $env{'request.state'} eq 'published')) {
1.327 albertel 229: # in case there is a </head> but no <head>
230: if ($Apache::lonxml::redirection) {
231: $Apache::londefdef::head = &Apache::lonxml::endredirection();
232: }
1.468 raeburn 233: }
1.122 albertel 234: return $currentstring;
235: }
236:
1.181 sakharuk 237: #-- <map> tag (end tag required)
1.122 albertel 238: sub start_map {
239: my ($target,$token) = @_;
240: my $currentstring = '';
1.325 albertel 241: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 242: $currentstring = $token->[4];
243: }
1.122 albertel 244: return $currentstring;
245: }
246:
247: sub end_map {
248: my ($target,$token) = @_;
249: my $currentstring = '';
1.325 albertel 250: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 251: $currentstring = $token->[2];
252: }
1.122 albertel 253: return $currentstring;
254: }
255:
1.181 sakharuk 256: #-- <select> tag (end tag required)
1.122 albertel 257: sub start_select {
258: my ($target,$token) = @_;
259: my $currentstring = '';
1.325 albertel 260: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 261: $currentstring = $token->[4];
1.181 sakharuk 262: } elsif ($target eq 'tex') {
263: $Apache::londefdef::select=0;
264: }
1.122 albertel 265: return $currentstring;
266: }
267:
268: sub end_select {
269: my ($target,$token) = @_;
270: my $currentstring = '';
1.325 albertel 271: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 272: $currentstring = $token->[2];
273: }
1.122 albertel 274: return $currentstring;
275: }
276:
1.181 sakharuk 277: #-- <option> tag (end tag optional)
1.122 albertel 278: sub start_option {
1.181 sakharuk 279: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 280: my $currentstring = '';
1.325 albertel 281: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 282: $currentstring = $token->[4];
1.181 sakharuk 283: } elsif ($target eq 'tex') {
284: $Apache::londefdef::select++;
285: if ($Apache::londefdef::select == 1) {
286: $currentstring='\noindent\fbox{'.&Apache::lonxml::get_param('value',$parstack,$safeeval).'}\keephidden{';
287: } else {
288: $currentstring='\keephidden{';
289: }
290: }
1.122 albertel 291: return $currentstring;
292: }
293:
294: sub end_option {
295: my ($target,$token) = @_;
296: my $currentstring = '';
1.325 albertel 297: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 298: $currentstring = $token->[2];
1.181 sakharuk 299: } elsif ($target eq 'tex') {
300: $currentstring='}';
301: }
1.122 albertel 302: return $currentstring;
303: }
304:
1.181 sakharuk 305: #-- <input> tag (end tag forbidden)
1.122 albertel 306: sub start_input {
307: my ($target,$token) = @_;
308: my $currentstring = '';
1.325 albertel 309: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 310: $currentstring = $token->[4];
311: }
1.122 albertel 312: return $currentstring;
313: }
314:
315: sub end_input {
316: my ($target,$token) = @_;
317: my $currentstring = '';
1.325 albertel 318: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 319: $currentstring = $token->[2];
320: }
1.122 albertel 321: return $currentstring;
322: }
323:
1.181 sakharuk 324: #-- <textarea> tag (end tag required)
1.122 albertel 325: sub start_textarea {
326: my ($target,$token) = @_;
327: my $currentstring = '';
1.325 albertel 328: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 329: $currentstring = $token->[4];
330: }
1.122 albertel 331: return $currentstring;
332: }
333:
334: sub end_textarea {
335: my ($target,$token) = @_;
336: my $currentstring = '';
1.325 albertel 337: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 338: $currentstring = $token->[2];
339: }
1.122 albertel 340: return $currentstring;
341: }
342:
1.181 sakharuk 343: #-- <form> tag (end tag required)
1.122 albertel 344: sub start_form {
345: my ($target,$token) = @_;
346: my $currentstring = '';
1.325 albertel 347: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 348: $currentstring = $token->[4];
349: }
1.122 albertel 350: return $currentstring;
351: }
352:
353: sub end_form {
354: my ($target,$token) = @_;
355: my $currentstring = '';
1.325 albertel 356: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 357: $currentstring = $token->[2];
358: }
1.122 albertel 359: return $currentstring;
360: }
361:
1.181 sakharuk 362: #-- <title> tag (end tag required)
1.122 albertel 363: sub start_title {
1.327 albertel 364: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 365: my $currentstring = '';
1.324 albertel 366: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 367: $Apache::londefdef::title =
1.327 albertel 368: &Apache::lonxml::get_all_text('/title',$parser,$style);
1.122 albertel 369: } elsif ($target eq 'tex') {
1.467 raeburn 370: $currentstring .= '\keephidden{Title of the document: ';
1.122 albertel 371: }
372: if ($target eq 'meta') {
373: $currentstring='<title>';
1.185 albertel 374: &start_output($target);
1.122 albertel 375: }
376: return $currentstring;
377: }
378:
379: sub end_title {
380: my ($target,$token) = @_;
381: my $currentstring = '';
1.324 albertel 382: if ($target eq 'web' || $target eq 'webgrade') {
1.327 albertel 383: # start_title takes care of swallowing the title
1.122 albertel 384: } elsif ($target eq 'tex') {
385: $currentstring .= '}';
1.468 raeburn 386: }
1.122 albertel 387: if ($target eq 'meta') {
1.185 albertel 388: &end_output($target);
1.122 albertel 389: $currentstring='</title>';
1.468 raeburn 390: }
1.122 albertel 391: return $currentstring;
392: }
393:
1.181 sakharuk 394: #-- <meta> tag (end tag forbidden)
1.122 albertel 395: sub start_meta {
1.299 albertel 396: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 397: my $currentstring = '';
1.325 albertel 398: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 399: my $args='';
400: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
401: if ($args eq '') {
1.299 albertel 402: &Apache::lonxml::get_all_text("/meta",$parser,$style);
1.122 albertel 403: } else {
404: $currentstring = $token->[4];
1.1 sakharuk 405: }
1.431 raeburn 406: if ($env{'form.grade_imsexport'}) {
407: $currentstring = '';
408: }
1.135 sakharuk 409: } elsif ($target eq 'meta') {
1.122 albertel 410: unless (&Apache::lonxml::get_param
411: ('http-equiv',$parstack,$safeeval,undef,1)) {
412: my $name=$token->[2]->{'name'};
413: $name=~tr/A-Z/a-z/;
414: $name=~s/\s/\_/gs;
415: $name=~s/\W//gs;
416: if ($name) {
1.154 www 417: $currentstring='<'.$name;
418: my $display=&Apache::lonxml::get_param
419: ('display',$parstack,$safeeval,undef,1);
420: if ($display) {
421: $display=~s/\"/\'/g;
422: $currentstring.=' display="'.$display.'"';
423: }
424: $currentstring.='>'.
1.122 albertel 425: &Apache::lonxml::get_param
426: ('content',$parstack,$safeeval,undef,1).
1.135 sakharuk 427: '</'.$name.'>';
1.1 sakharuk 428: }
1.154 www 429: my $display=&Apache::lonxml::get_param
430: ('display',$parstack,$safeeval,undef,1);
431: if ($display) {
1.204 albertel 432: $display=&HTML::Entities::encode($display,'<>&"');
1.154 www 433: $currentstring.='<'.$name.'.display>'.$display.
434: '</'.$name.'.display>';
435: }
1.1 sakharuk 436: }
1.135 sakharuk 437: } elsif ($target eq 'tex') {
1.151 sakharuk 438: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
439: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
440: if ((not defined $content) && (not defined $name)) {
441: &Apache::lonxml::startredirection();
442: }
1.374 albertel 443: } elsif ($target eq 'edit') {
444: $currentstring .= &Apache::edit::tag_start($target,$token);
445: $currentstring .= &Apache::edit::text_arg('Name:','name',$token,30);
446: $currentstring .= &Apache::edit::text_arg('Content:','content',$token,70);
447: $currentstring .= &Apache::edit::end_row();
448: } elsif ($target eq 'modified') {
449: my $constructtag =
450: &Apache::edit::get_new_args($token,$parstack,$safeeval,
451: 'name','content');
452: if ($constructtag) { $currentstring = &Apache::edit::rebuild_tag($token); }
1.122 albertel 453: }
454: return $currentstring;
455: }
456:
457: sub end_meta {
1.165 albertel 458: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 459: my $currentstring = '';
1.325 albertel 460: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 461: my $args='';
462: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
463: if ($args ne '') {
1.121 www 464: $currentstring = $token->[4];
1.122 albertel 465: }
1.135 sakharuk 466: } elsif ($target eq 'tex') {
1.165 albertel 467: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
468: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
1.164 albertel 469: if ((not defined $content) && (not defined $name)) {
1.169 albertel 470: &Apache::lonxml::endredirection();
1.164 albertel 471: }
1.135 sakharuk 472: }
1.122 albertel 473: return $currentstring;
474: }
475:
1.374 albertel 476: sub insert_meta {
477: return '
478: <meta />';
479: }
480:
1.438 droeschl 481: #-- <start> tag
482: sub start_style {
483: my ($target, $token, $tagstack, $parstack, $parser, $safeeval, $style) = @_;
484: my $currentstring = '';
485:
486: if ($target eq 'tex') {
487: Apache::lonxml::startredirection();
488: } else {
489: $currentstring = $token->[4];
490: }
491:
492: return $currentstring;
493: }
494:
495: sub end_style {
496: my ($target, $token, $tagstack, $parstack, $parser, $safeeval) = @_;
497: my $currentstring = '';
498:
499: if ($target eq 'tex') {
500: Apache::lonxml::endredirection();
501: } else {
502: $currentstring = $token->[2];
503: }
504: return $currentstring;
505: }
506:
1.121 www 507: # accessrule
1.122 albertel 508: sub start_accessrule {
1.299 albertel 509: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 510: my $currentstring = '';
1.373 albertel 511: my $eff =&Apache::lonxml::get_param('effect',$parstack,$safeeval,undef,1);
512: my $realm=&Apache::lonxml::get_param('realm', $parstack,$safeeval,undef,1);
513: my $role =&Apache::lonxml::get_param('role', $parstack,$safeeval,undef,1);
514: my $type =&Apache::lonxml::get_param('type', $parstack,$safeeval,undef,1);
515:
516: my ($dom,$crs,$sec,$separator);
1.369 albertel 517: if ($type eq 'user') {
1.373 albertel 518: ($dom,$crs,$sec)=split(m{/},$realm);
1.369 albertel 519: $crs = &LONCAPA::clean_username($crs);
1.373 albertel 520: $separator = '/';
1.369 albertel 521: } else {
1.373 albertel 522: ($dom,$crs,$sec)=split(/\_/,$realm);
1.369 albertel 523: $crs = &LONCAPA::clean_courseid($crs);
1.373 albertel 524: $separator = '_';
1.369 albertel 525: }
1.373 albertel 526: $dom = &LONCAPA::clean_domain($dom);
527:
1.369 albertel 528: $sec =~s/\W//;
529: $realm = $dom;
1.373 albertel 530: if ($crs =~ /\S/) { $realm .= $separator.$crs; }
531: if ($sec =~ /\S/) { $realm .= $separator.$sec; }
1.369 albertel 532: $role=~s/\W//g;
533:
1.122 albertel 534: if ($target eq 'web') {
535: my $args='';
536: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
537: if ($args eq '') {
1.299 albertel 538: &Apache::lonxml::get_all_text("/accessrule",$parser,$style);
1.122 albertel 539: } else {
540: $currentstring = $token->[4];
541: }
542: }
543: if ($target eq 'meta') {
1.369 albertel 544: $currentstring='<rule>'.$eff.':'.$realm.':'.$role.':'.$type.'</rule>';
1.122 albertel 545: }
546: return $currentstring;
547: }
548:
549: sub end_accessrule {
550: my ($target,$token,$tagstack,$parstack,$parser) = @_;
551: my $currentstring = '';
552: if ($target eq 'web') {
553: my $args='';
554: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
555: if ($args ne '') {
556: $currentstring = $token->[4];
557: }
1.468 raeburn 558: }
1.122 albertel 559: return $currentstring;
560: }
561:
1.366 albertel 562: sub generate_css_links {
563: my $links;
564: my $css_href = &Apache::lonnet::EXT('resource.0.cssfile');
565: if ($css_href =~ /\S/) {
566: &Apache::lonxml::extlink($css_href);
1.468 raeburn 567: $links .=
1.366 albertel 568: '<link rel="stylesheet" type="text/css" href="'.$css_href.'" />';
569: }
570: return $links;
571: }
572:
1.181 sakharuk 573: #-- <body> tag (end tag required)
1.122 albertel 574: sub start_body {
575: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
576: my $currentstring = '';
1.244 albertel 577:
1.324 albertel 578: if ($target eq 'web' || $target eq 'webgrade') {
1.170 albertel 579: if ($Apache::lonhomework::parsing_a_problem) {
580: &Apache::lonxml::warning("<body> tag found inside of <problem> tag this can cause problems.");
581: return '';
582: }
1.122 albertel 583:
1.327 albertel 584: if (&is_inside_of($tagstack, "head")) {
585: &end_head(@_);
1.122 albertel 586: }
1.366 albertel 587:
588: my $extra_head = &generate_css_links();
589:
1.406 bisitz 590: # Breadcrumbs
591: &Apache::lonhtmlcommon::clear_breadcrumbs();
1.410 bisitz 592: if ($env{'request.state'} eq 'construct') {
1.436 raeburn 593: my $url=&Apache::lonnet::hreflocation('',$env{'request.filename'});
1.410 bisitz 594: &Apache::lonhtmlcommon::add_breadcrumb({
1.444 raeburn 595: 'text' => 'Authoring Space',
1.436 raeburn 596: 'href' => &Apache::loncommon::authorspace($url),
1.410 bisitz 597: });
598: &Apache::lonhtmlcommon::add_breadcrumb({
599: 'text' => 'HTML Editor',
600: 'href' => '',
601: });
1.468 raeburn 602: # breadcrumbs (and tools) will be created
1.413 droeschl 603: # in start_page->bodytag->innerregister
1.410 bisitz 604: } else {
605: # FIXME Where are we?
606: }
1.406 bisitz 607:
1.451 raeburn 608: my $args = {'add_entries' => $token->[2],
609: 'force_register' => 1,};
610: if ($target eq 'web') {
611: $args->{'print_suppress'} = 1;
1.452 raeburn 612: if ($env{'request.use_absolute'}) {
613: $args->{'use_absolute'} = $env{'request.use_absolute'};
614: }
1.451 raeburn 615: }
1.468 raeburn 616: $currentstring =
1.327 albertel 617: &Apache::loncommon::start_page($Apache::londefdef::title,
1.366 albertel 618: $Apache::londefdef::head
1.451 raeburn 619: .$extra_head,$args);
1.407 bisitz 620: my $header = '';
1.411 bisitz 621: if ($env{'request.state'} ne 'published' &&
622: $env{'request.state'} ne 'construct') {
623: $header=&Apache::lonmenu::constspaceform();
624: }
1.407 bisitz 625: if ($env{'request.state'} ne 'published') {
1.446 raeburn 626: unless ($env{'form.inhibitmenu'} eq 'yes') {
627: $header.=&edit_controls();
628: }
1.407 bisitz 629: }
1.410 bisitz 630: if ($env{'request.state'} eq 'construct') {
1.446 raeburn 631: unless ($env{'form.inhibitmenu'} eq 'yes') {
632: $currentstring.=&Apache::loncommon::head_subbox(
633: &Apache::loncommon::CSTR_pageheader()
634: .$header);
635: }
1.412 raeburn 636: } elsif ($env{'request.state'} eq 'edit') {
637: $currentstring.=&Apache::loncommon::head_subbox($header);
1.410 bisitz 638: }
1.407 bisitz 639: $currentstring.=&Apache::lonxml::message_location();
1.122 albertel 640: } elsif ($target eq 'tex') {
1.407 bisitz 641: $currentstring = ''; # '\begin{document}' is in header.
642: }
643:
1.122 albertel 644: return $currentstring;
645: }
646:
1.376 albertel 647: sub edit_controls {
1.401 raeburn 648: my ($nochgview) = @_;
1.389 www 649: my $result .= '
1.427 raeburn 650: <form method="post" action="">
1.401 raeburn 651: <div class="LC_edit_problem_header">';
652: unless ($nochgview) {
653: $result .= '
1.389 www 654: <div class="LC_edit_problem_header_row1">'.
655: &Apache::lonxml::renderingoptions().'
656: <input type="submit" name="changeproblemmode" value="'.&mt('Change View').'" />
1.401 raeburn 657: </div>';
658: }
659: $result .= '
1.412 raeburn 660: <div><input type="submit" name="editmode" accesskey="e" value="'.&mt('Edit').'" />';
1.457 damieng 661: if ($env{'browser.type'} ne 'explorer' || $env{'browser.version'} > 9) {
662: my $uri = $env{'request.uri'};
663: my $daxeurl = '/daxepage'.$uri;
664: $result .= '<input type="button" value="'.&mt('Edit with Daxe').'" '.
665: 'onclick="window.open(\''.$daxeurl.'\',\'_blank\');" />';
666: }
1.412 raeburn 667: if (($env{'request.course.id'}) && ($env{'form.forceedit'})) {
1.439 raeburn 668: my $url=&Apache::lonnet::hreflocation('',$env{'request.filename'});
669: if ($url =~ /\.html?$/i) {
1.443 raeburn 670: my ($cdom,$cnum);
1.441 raeburn 671: if ($env{'request.course.id'}) {
1.443 raeburn 672: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
673: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
1.441 raeburn 674: if ($env{'request.filename'} =~ m{/userfiles/supplemental/default|\d+/}) {
675: if (&Apache::lonnet::is_course_upload($env{'request.filename'},
1.443 raeburn 676: $cnum,$cdom)) {
1.441 raeburn 677: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
678: ['folderpath','title']);
679: }
680: }
681: }
1.443 raeburn 682: my ($symb,$itemtitle,$displayfile,$caller);
683: if ($url =~ m{^/uploaded/$cdom/$cnum/portfolio/syllabus/}) {
684: $itemtitle = &mt('Syllabus');
685: $caller = "/public/$cdom/$cnum/syllabus";
686: } else {
687: $caller = $url;
688: ($symb,$itemtitle,$displayfile) =
689: &Apache::lonxml::get_courseupload_hierarchy($url,
690: $env{'form.folderpath'},
691: $env{'form.title'});
692: }
693: if (($symb ne '') || ($env{'httpref.'.$url} ne '') ||
694: ($url =~ m{^/uploaded/$cdom/$cnum/portfolio/syllabus/})) {
1.439 raeburn 695: $result .= (' ' x 3).
696: &Apache::lonhtmlcommon::dependencies_button()."\n".
1.441 raeburn 697: &Apache::lonhtmlcommon::dependencycheck_js($symb,
1.443 raeburn 698: $itemtitle,$url,$env{'form.folderpath'},$caller)."\n";
1.439 raeburn 699: }
700: }
1.412 raeburn 701: }
702: $result .= '</div>
1.408 bisitz 703: </div>
1.376 albertel 704: </form>
1.408 bisitz 705: ';
1.376 albertel 706: return $result;
707: }
708:
1.122 albertel 709: sub end_body {
1.259 albertel 710: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 711: my $currentstring = &end_p(); # Close off unclosed <p>
1.324 albertel 712: if ($target eq 'web' || $target eq 'webgrade') {
1.327 albertel 713: $currentstring .= &Apache::loncommon::end_page({'discussion' => 1});
1.122 albertel 714: } elsif ($target eq 'tex') {
1.468 raeburn 715: $currentstring .= '\strut\newline\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\newline\noindent \end{document}';
716: }
1.122 albertel 717: return $currentstring;
718: }
719:
1.468 raeburn 720: # \begin{center} causes a new paragprah spacing that looks odd inside
1.337 foxr 721: # of a table cell. Same at the end of a \center but with a slightly
722: # larger space .. hence center_correction and center_end_correction.
723: #
1.468 raeburn 724: sub center_correction { return '\vspace*{-6 mm}'; }
1.337 foxr 725: sub center_end_correction { return '\vspace*{-7 mm}'; }
726:
1.181 sakharuk 727: #-- <center> tag (end tag required)
1.122 albertel 728: sub start_center {
1.309 albertel 729: my ($target,$token,$tagstack) = @_;
1.279 foxr 730: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 731: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 732: $currentstring .= $token->[4];
1.122 albertel 733: } elsif ($target eq 'tex') {
1.309 albertel 734: if (&is_inside_of($tagstack, "table")) {
735: $currentstring .= ¢er_correction();
736: }
1.468 raeburn 737: $currentstring .= '\begin{center}';
1.144 sakharuk 738: }
1.122 albertel 739: return $currentstring;
740: }
741:
742: sub end_center {
1.309 albertel 743: my ($target,$token,$tagstack) = @_;
1.122 albertel 744: my $currentstring = '';
1.325 albertel 745: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 746: $currentstring = $token->[2];
1.122 albertel 747: } elsif ($target eq 'tex') {
1.468 raeburn 748: $currentstring = '\end{center}';
1.337 foxr 749: if (&is_inside_of($tagstack, "table")) {
750: $currentstring .= ¢er_end_correction();
751: }
1.144 sakharuk 752: }
1.122 albertel 753: return $currentstring;
754: }
755:
1.181 sakharuk 756: #-- <b> tag (end tag required)
1.279 foxr 757: # NOTE: In TeX mode disables internal <p>
1.122 albertel 758: sub start_b {
759: my ($target,$token) = @_;
760: my $currentstring = '';
1.325 albertel 761: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 762: $currentstring = $token->[4];
1.122 albertel 763: } elsif ($target eq 'tex') {
1.279 foxr 764: &disable_para();
1.468 raeburn 765: $currentstring .= '\textbf{';
766: }
1.122 albertel 767: return $currentstring;
768: }
769:
770: sub end_b {
771: my ($target,$token) = @_;
772: my $currentstring = '';
1.325 albertel 773: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 774: $currentstring = $token->[2];
1.122 albertel 775: } elsif ($target eq 'tex') {
1.279 foxr 776: &enable_para();
777: $currentstring = '}';
1.468 raeburn 778: }
1.122 albertel 779: return $currentstring;
780: }
1.35 sakharuk 781:
1.181 sakharuk 782: #-- <strong> tag (end tag required)
1.279 foxr 783: # NOTE: in TeX mode disables internal <p>
1.122 albertel 784: sub start_strong {
785: my ($target,$token) = @_;
786: my $currentstring = '';
1.325 albertel 787: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 788: $currentstring = $token->[4];
1.122 albertel 789: } elsif ($target eq 'tex') {
1.279 foxr 790: &disable_para();
1.468 raeburn 791: $currentstring = '\textbf{';
792: }
1.122 albertel 793: return $currentstring;
794: }
795:
796: sub end_strong {
797: my ($target,$token) = @_;
798: my $currentstring = '';
1.325 albertel 799: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 800: $currentstring = $token->[2];
1.122 albertel 801: } elsif ($target eq 'tex') {
1.279 foxr 802: &enable_para();
1.468 raeburn 803: $currentstring = '}';
1.144 sakharuk 804: }
1.122 albertel 805: return $currentstring;
806: }
807:
1.181 sakharuk 808: #-- <h1> tag (end tag required)
1.122 albertel 809: sub start_h1 {
1.125 sakharuk 810: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 811: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 812: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 813: $currentstring .= $token->[4];
814: } elsif ($target eq 'tex') {
1.125 sakharuk 815: my $pre;
1.199 albertel 816: my $align=lc(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1));
1.212 sakharuk 817: if ($align eq 'center') {
1.125 sakharuk 818: $pre='\begin{center}';
819: } elsif ($align eq 'left') {
820: $pre='\rlap{';
821: } elsif ($align eq 'right') {
822: $pre=' \hfill \llap{';
823: }
824: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
825: if (not defined $TeXsize) {$TeXsize="large";}
1.468 raeburn 826: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1.122 albertel 827: } elsif ($target eq 'meta') {
1.277 foxr 828: $currentstring.='<subject>';
1.185 albertel 829: &start_output($target);
1.122 albertel 830: }
831: return $currentstring;
832: }
833:
834: sub end_h1 {
1.125 sakharuk 835: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 836: my $currentstring = '';
1.325 albertel 837: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 838: $currentstring .= $token->[2];
839: } elsif ($target eq 'tex') {
1.212 sakharuk 840: my $post='\vskip 0 mm ';
1.463 damieng 841: my $align=lc(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1));
1.212 sakharuk 842: if ($align eq 'center') {
1.125 sakharuk 843: $post='\end{center}';
844: } elsif ($align eq 'left') {
845: $post='} \hfill'.'\vskip 0 mm ';
846: } elsif ($align eq 'right') {
847: $post='}'.'\vskip 0 mm ';
848: }
849: $currentstring .= '}}'.$post;
1.122 albertel 850: } elsif ($target eq 'meta') {
1.185 albertel 851: &end_output($target);
1.122 albertel 852: $currentstring='</subject>';
1.468 raeburn 853: }
1.122 albertel 854: return $currentstring;
855: }
856:
1.35 sakharuk 857: #-- <h2> tag
1.122 albertel 858: sub start_h2 {
1.125 sakharuk 859: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 860: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 861: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 862: $currentstring .= $token->[4];
863: } elsif ($target eq 'tex') {
1.125 sakharuk 864: my $pre;
865: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 866: if ($align eq 'center') {
1.125 sakharuk 867: $pre='\begin{center}';
868: } elsif ($align eq 'left') {
869: $pre='\rlap{';
870: } elsif ($align eq 'right') {
871: $pre=' \hfill \llap{';
872: }
873: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
874: if (not defined $TeXsize) {$TeXsize="large";}
1.468 raeburn 875: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
876: }
1.122 albertel 877: return $currentstring;
878: }
879:
880: sub end_h2 {
1.125 sakharuk 881: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 882: my $currentstring = '';
1.325 albertel 883: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 884: $currentstring .= $token->[2];
885: } elsif ($target eq 'tex') {
1.212 sakharuk 886: my $post='\vskip 0 mm ';
1.125 sakharuk 887: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 888: if ($align eq 'center') {
1.125 sakharuk 889: $post='\end{center}';
890: } elsif ($align eq 'left') {
891: $post='} \hfill'.'\vskip 0 mm ';
892: } elsif ($align eq 'right') {
893: $post='}'.'\vskip 0 mm ';
894: }
895: $currentstring .= '}}'.$post;
1.468 raeburn 896: }
1.122 albertel 897: return $currentstring;
898: }
899:
1.35 sakharuk 900: #-- <h3> tag
1.122 albertel 901: sub start_h3 {
1.125 sakharuk 902: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 903: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 904: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 905: $currentstring .= $token->[4];
906: } elsif ($target eq 'tex') {
1.125 sakharuk 907: my $pre;
908: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 909: if ($align eq 'center') {
1.125 sakharuk 910: $pre='\begin{center}';
911: } elsif ($align eq 'left') {
912: $pre='\rlap{';
913: } elsif ($align eq 'right') {
914: $pre=' \hfill \llap{';
915: }
916: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
917: if (not defined $TeXsize) {$TeXsize="large";}
1.468 raeburn 918: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
919: }
1.122 albertel 920: return $currentstring;
921: }
922:
923: sub end_h3 {
1.125 sakharuk 924: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 925: my $currentstring = '';
1.325 albertel 926: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 927: $currentstring .= $token->[2];
928: } elsif ($target eq 'tex') {
1.212 sakharuk 929: my $post='\vskip 0 mm ';
1.125 sakharuk 930: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 931: if ($align eq 'center') {
1.125 sakharuk 932: $post='\end{center}';
933: } elsif ($align eq 'left') {
934: $post='} \hfill'.'\vskip 0 mm ';
935: } elsif ($align eq 'right') {
936: $post='}'.'\vskip 0 mm ';
937: }
938: $currentstring .= '}}'.$post;
1.468 raeburn 939: }
1.122 albertel 940: return $currentstring;
941: }
942:
1.35 sakharuk 943: #-- <h4> tag
1.122 albertel 944: sub start_h4 {
1.125 sakharuk 945: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 946: my $currentstring = &end_p(); # Close off any prior para.
1.325 albertel 947: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 948: $currentstring .= $token->[4];
949: } elsif ($target eq 'tex') {
1.125 sakharuk 950: my $pre;
951: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 952: if ($align eq 'center') {
1.125 sakharuk 953: $pre='\begin{center}';
954: } elsif ($align eq 'left') {
955: $pre='\rlap{';
956: } elsif ($align eq 'right') {
957: $pre=' \hfill \llap{';
958: }
959: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
960: if (not defined $TeXsize) {$TeXsize="large";}
1.468 raeburn 961: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
962: }
1.122 albertel 963: return $currentstring;
964: }
965:
966: sub end_h4 {
1.125 sakharuk 967: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 968: my $currentstring = '';
1.325 albertel 969: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 970: $currentstring .= $token->[2];
971: } elsif ($target eq 'tex') {
1.212 sakharuk 972: my $post='\vskip 0 mm ';
1.125 sakharuk 973: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 974: if ($align eq 'center') {
1.125 sakharuk 975: $post='\end{center}';
976: } elsif ($align eq 'left') {
977: $post='} \hfill'.'\vskip 0 mm ';
978: } elsif ($align eq 'right') {
979: $post='}'.'\vskip 0 mm ';
980: }
981: $currentstring .= '}}'.$post;
1.468 raeburn 982: }
1.122 albertel 983: return $currentstring;
984: }
985:
1.35 sakharuk 986: #-- <h5> tag
1.122 albertel 987: sub start_h5 {
1.125 sakharuk 988: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 989: my $currentstring = &end_p(); # Close off any prior paras.
1.325 albertel 990: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 991: $currentstring .= $token->[4];
992: } elsif ($target eq 'tex') {
1.125 sakharuk 993: my $pre;
994: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 995: if ($align eq 'center') {
1.125 sakharuk 996: $pre='\begin{center}';
997: } elsif ($align eq 'left') {
998: $pre='\rlap{';
999: } elsif ($align eq 'right') {
1000: $pre=' \hfill \llap{';
1001: }
1002: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
1003: if (not defined $TeXsize) {$TeXsize="large";}
1.468 raeburn 1004: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1005: }
1.122 albertel 1006: return $currentstring;
1007: }
1008:
1009: sub end_h5 {
1.125 sakharuk 1010: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1011: my $currentstring = '';
1.325 albertel 1012: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1013: $currentstring .= $token->[2];
1014: } elsif ($target eq 'tex') {
1.212 sakharuk 1015: my $post='\vskip 0 mm ';
1.125 sakharuk 1016: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 1017: if ($align eq 'center') {
1.125 sakharuk 1018: $post='\end{center}';
1019: } elsif ($align eq 'left') {
1020: $post='} \hfill'.'\vskip 0 mm ';
1021: } elsif ($align eq 'right') {
1022: $post='}'.'\vskip 0 mm ';
1023: }
1024: $currentstring .= '}}'.$post;
1.468 raeburn 1025: }
1.122 albertel 1026: return $currentstring;
1027: }
1028:
1.35 sakharuk 1029: #-- <h6> tag
1.122 albertel 1030: sub start_h6 {
1.125 sakharuk 1031: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1032: my $currentstring = &end_p(); # Close off any prior paras.
1.325 albertel 1033: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1034: $currentstring .= $token->[4];
1035: } elsif ($target eq 'tex') {
1.125 sakharuk 1036: my $pre;
1037: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 1038: if ($align eq 'center') {
1.125 sakharuk 1039: $pre='\begin{center}';
1040: } elsif ($align eq 'left') {
1041: $pre='\rlap{';
1042: } elsif ($align eq 'right') {
1043: $pre=' \hfill \llap{';
1044: }
1045: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
1046: if (not defined $TeXsize) {$TeXsize="large";}
1.468 raeburn 1047: $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
1048: }
1.122 albertel 1049: return $currentstring;
1050: }
1051:
1052: sub end_h6 {
1.125 sakharuk 1053: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1054: my $currentstring = '';
1.325 albertel 1055: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1056: $currentstring .= $token->[2];
1057: } elsif ($target eq 'tex') {
1.212 sakharuk 1058: my $post='\vskip 0 mm ';
1.125 sakharuk 1059: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.212 sakharuk 1060: if ($align eq 'center') {
1.125 sakharuk 1061: $post='\end{center}';
1062: } elsif ($align eq 'left') {
1063: $post='} \hfill'.'\vskip 0 mm ';
1064: } elsif ($align eq 'right') {
1065: $post='}'.'\vskip 0 mm ';
1066: }
1067: $currentstring .= '}}'.$post;
1.468 raeburn 1068: }
1.122 albertel 1069: return $currentstring;
1070: }
1071:
1.181 sakharuk 1072: #--- <cite> tag (end tag required)
1.122 albertel 1073: sub start_cite {
1074: my ($target,$token) = @_;
1075: my $currentstring = '';
1.325 albertel 1076: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1077: $currentstring .= $token->[4];
1078: } elsif ($target eq 'tex') {
1.179 sakharuk 1079: $currentstring .= '\textit{';
1.144 sakharuk 1080: }
1.122 albertel 1081: return $currentstring;
1082: }
1083:
1084: sub end_cite {
1085: my ($target,$token) = @_;
1086: my $currentstring = '';
1.325 albertel 1087: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1088: $currentstring .= $token->[2];
1089: } elsif ($target eq 'tex') {
1.179 sakharuk 1090: $currentstring .= '}';
1.144 sakharuk 1091: }
1.122 albertel 1092: return $currentstring;
1093: }
1094:
1.181 sakharuk 1095: #-- <i> tag (end tag required)
1.122 albertel 1096: sub start_i {
1097: my ($target,$token) = @_;
1098: my $currentstring = '';
1.325 albertel 1099: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1100: $currentstring .= $token->[4];
1101: } elsif ($target eq 'tex') {
1102: $currentstring .= '\textit{';
1.144 sakharuk 1103: }
1.122 albertel 1104: return $currentstring;
1105: }
1106:
1107: sub end_i {
1108: my ($target,$token) = @_;
1109: my $currentstring = '';
1.325 albertel 1110: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1111: $currentstring .= $token->[2];
1112: } elsif ($target eq 'tex') {
1113: $currentstring .= '}';
1.468 raeburn 1114: }
1.122 albertel 1115: return $currentstring;
1116: }
1117:
1.181 sakharuk 1118: #-- <address> tag (end tag required)
1.122 albertel 1119: sub start_address {
1120: my ($target,$token) = @_;
1121: my $currentstring = '';
1.325 albertel 1122: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1123: $currentstring .= $token->[4];
1124: } elsif ($target eq 'tex') {
1.179 sakharuk 1125: $currentstring .= '\textit{';
1.144 sakharuk 1126: }
1.122 albertel 1127: return $currentstring;
1128: }
1129:
1130: sub end_address {
1131: my ($target,$token) = @_;
1132: my $currentstring = '';
1.325 albertel 1133: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1134: $currentstring .= $token->[2];
1135: } elsif ($target eq 'tex') {
1.179 sakharuk 1136: $currentstring .= '}';
1.122 albertel 1137: }
1138: return $currentstring;
1139: }
1140:
1.181 sakharuk 1141: #-- <dfn> tag (end tag required)
1.122 albertel 1142: sub start_dfn {
1143: my ($target,$token) = @_;
1144: my $currentstring = '';
1.325 albertel 1145: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1146: $currentstring .= $token->[4];
1147: } elsif ($target eq 'tex') {
1.179 sakharuk 1148: $currentstring .= '\textit{';
1.468 raeburn 1149: }
1.122 albertel 1150: return $currentstring;
1151: }
1152:
1153: sub end_dfn {
1154: my ($target,$token) = @_;
1155: my $currentstring = '';
1.325 albertel 1156: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1157: $currentstring .= $token->[2];
1158: } elsif ($target eq 'tex') {
1.179 sakharuk 1159: $currentstring .= '}';
1.144 sakharuk 1160: }
1.122 albertel 1161: return $currentstring;
1162: }
1163:
1.181 sakharuk 1164: #-- <tt> tag (end tag required)
1.122 albertel 1165: sub start_tt {
1166: my ($target,$token) = @_;
1167: my $currentstring = '';
1.325 albertel 1168: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1169: $currentstring .= $token->[4];
1170: } elsif ($target eq 'tex') {
1171: $currentstring .= '\texttt{';
1.144 sakharuk 1172: }
1.122 albertel 1173: return $currentstring;
1174: }
1175:
1176: sub end_tt {
1177: my ($target,$token) = @_;
1178: my $currentstring = '';
1.325 albertel 1179: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1180: $currentstring .= $token->[2];
1181: } elsif ($target eq 'tex') {
1182: $currentstring .= '}';
1183: }
1184: return $currentstring;
1185: }
1186:
1.181 sakharuk 1187: #-- <kbd> tag (end tag required)
1.122 albertel 1188: sub start_kbd {
1189: my ($target,$token) = @_;
1190: my $currentstring = '';
1.325 albertel 1191: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1192: $currentstring .= $token->[4];
1193: } elsif ($target eq 'tex') {
1.179 sakharuk 1194: $currentstring .= '\texttt{';
1.144 sakharuk 1195: }
1.122 albertel 1196: return $currentstring;
1197: }
1198:
1199: sub end_kbd {
1200: my ($target,$token) = @_;
1201: my $currentstring = '';
1.325 albertel 1202: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1203: $currentstring .= $token->[2];
1204: } elsif ($target eq 'tex') {
1.179 sakharuk 1205: $currentstring .= '}';
1.144 sakharuk 1206: }
1.122 albertel 1207: return $currentstring;
1208: }
1209:
1.181 sakharuk 1210: #-- <code> tag (end tag required)
1.122 albertel 1211: sub start_code {
1212: my ($target,$token) = @_;
1213: my $currentstring = '';
1.325 albertel 1214: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1215: $currentstring .= $token->[4];
1216: } elsif ($target eq 'tex') {
1217: $currentstring .= '\texttt{';
1.468 raeburn 1218: }
1.122 albertel 1219: return $currentstring;
1220: }
1221:
1222: sub end_code {
1223: my ($target,$token) = @_;
1224: my $currentstring = '';
1.325 albertel 1225: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1226: $currentstring .= $token->[2];
1227: } elsif ($target eq 'tex') {
1228: $currentstring .= '}';
1.468 raeburn 1229: }
1.122 albertel 1230: return $currentstring;
1231: }
1232:
1.181 sakharuk 1233: #-- <em> tag (end tag required)
1.122 albertel 1234: sub start_em {
1235: my ($target,$token) = @_;
1236: my $currentstring = '';
1.325 albertel 1237: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1238: $currentstring .= $token->[4];
1239: } elsif ($target eq 'tex') {
1240: $currentstring .= '\emph{';
1.144 sakharuk 1241: }
1.122 albertel 1242: return $currentstring;
1243: }
1244:
1245: sub end_em {
1246: my ($target,$token) = @_;
1247: my $currentstring = '';
1.325 albertel 1248: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1249: $currentstring .= $token->[2];
1250: } elsif ($target eq 'tex') {
1251: $currentstring .= '}';
1.468 raeburn 1252: }
1.122 albertel 1253: return $currentstring;
1254: }
1255:
1.181 sakharuk 1256: #-- <q> tag (end tag required)
1.122 albertel 1257: sub start_q {
1258: my ($target,$token) = @_;
1259: my $currentstring = '';
1.325 albertel 1260: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1261: $currentstring .= $token->[4];
1262: } elsif ($target eq 'tex') {
1.179 sakharuk 1263: $currentstring .= '\emph{';
1.122 albertel 1264: }
1265: return $currentstring;
1266: }
1267:
1268: sub end_q {
1269: my ($target,$token) = @_;
1270: my $currentstring = '';
1.325 albertel 1271: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1272: $currentstring .= $token->[2];
1273: } elsif ($target eq 'tex') {
1.179 sakharuk 1274: $currentstring .= '}';
1.468 raeburn 1275: }
1.122 albertel 1276: return $currentstring;
1277: }
1278:
1.277 foxr 1279: # <p> is a bit strange since it does not require a closing </p>
1280: # However in latex, we must often output closing stuff to end
1281: # environments and {}'s etc. Therefore we do all the work
1282: # of figuring out the ending strings in the start tag processing,
1283: # and provide a mechanism to output the stop text external
1284: # to tag processing.
1285: #
1286: {
1287:
1288: my $closing_string = ''; # String required to close <p>
1289:
1.279 foxr 1290: # Some tags are <p> fragile meaning that <p> inside of them
1.468 raeburn 1291: # does not work within TeX mode. This is managed via the
1.279 foxr 1292: # counter below:
1293: #
1294:
1295: my $para_disabled = 0;
1296:
1297: sub disable_para {
1298: $para_disabled++;
1299: }
1300: sub enable_para {
1301: $para_disabled--;
1302: }
1303:
1304:
1.181 sakharuk 1305: #-- <p> tag (end tag optional)
1.198 sakharuk 1306: #optional attribute - align="center|left|right"
1.122 albertel 1307: sub start_p {
1.157 sakharuk 1308: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1309: my $currentstring = '';
1.325 albertel 1310: if ($target eq 'web' || $target eq 'webgrade') {
1.279 foxr 1311: $currentstring .= &end_p(); # close off prior para if in progress.
1.122 albertel 1312: $currentstring .= $token->[4];
1.279 foxr 1313: if (! ($currentstring =~ /\//)) {
1314: $closing_string = '</p>'; # Deal correctly with <p /> e.g.
1315: }
1316: } elsif ($target eq 'tex' && !$para_disabled) {
1.313 foxr 1317:
1.279 foxr 1318: $currentstring .= &end_p(); # close off prior para if in progress.
1.198 sakharuk 1319: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.464 damieng 1320: if (!defined $align) {
1321: # check inline CSS
1322: $align = &get_css_property('text-align',$parstack,$safeeval);
1323: }
1.198 sakharuk 1324: if ($align eq 'center') {
1.333 albertel 1325: $currentstring .='\begin{center}\par ';
1.277 foxr 1326: $closing_string = '\end{center}';
1.309 albertel 1327: if (&is_inside_of($tagstack, "table")) {
1328: $currentstring = ¢er_correction().$currentstring;
1329: }
1.198 sakharuk 1330: } elsif ($align eq 'right') {
1.464 damieng 1331: $currentstring.="\n".'\begin{flushright}';
1.323 foxr 1332: # $currentstring.='\makebox['.$env{'form.textwidth'}.']{\hfill\llap{';
1.464 damieng 1333: $closing_string= '\end{flushright}'."\n";
1.198 sakharuk 1334: } elsif ($align eq 'left') {
1.464 damieng 1335: $currentstring.= "\n".'\begin{flushleft}';
1.323 foxr 1336: # $currentstring.='\noindent\makebox['.$env{'form.textwidth'}.']{{';
1.464 damieng 1337: $closing_string = '\end{flushleft}'."\n";
1.216 matthew 1338: } else {
1.277 foxr 1339: $currentstring.='\par ';
1.313 foxr 1340: if (&is_inside_of($tagstack, 'table')) {
1.315 foxr 1341: $closing_string = '\vskip 0pt'; # Seems to be consistent with <p> in tables.
1.313 foxr 1342: } else {
1343: $closing_string = '\strut\\\\\strut ';
1344: }
1.216 matthew 1345: }
1.277 foxr 1346:
1.144 sakharuk 1347: }
1.122 albertel 1348: return $currentstring;
1349: }
1.277 foxr 1350: #
1351: # End paragraph processing just requires that we output the
1352: # closing string that was saved and blank it.
1353: sub end_p {
1.279 foxr 1354: # Note only 'tex' mode uses disable_para and enable_para
1355: # so we don't need to know the target in the check below:
1356:
1357: if (!$para_disabled) {
1358: my $current_string = $closing_string;
1359: $closing_string = ''; # Not in a para anymore.
1360: return $current_string;
1361: } else {
1362: return '';
1363: }
1.122 albertel 1364:
1365: }
1.277 foxr 1366: }
1.181 sakharuk 1367: #-- <br> tag (end tag forbidden)
1.122 albertel 1368: sub start_br {
1369: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1370: my $currentstring = '';
1.325 albertel 1371: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1372: $currentstring .= $token->[4];
1373: } elsif ($target eq 'tex') {
1.227 sakharuk 1374: my @tempo=@$tagstack;
1.229 sakharuk 1375: my $signal=0;
1.287 foxr 1376: # Not going to factor this to is_inside_of since that would require
1377: # multiple stack traversals.
1378: #
1.227 sakharuk 1379: for (my $i=$#tempo;$i>=0;$i--) {
1380: if (($tempo[$i] eq 'b') || ($tempo[$i] eq 'strong') ||
1.334 albertel 1381: ($tempo[$i] eq 'ol') || ($tempo[$i] eq 'ul')) {
1.229 sakharuk 1382: $signal=1;
1.334 albertel 1383: }
1384: if (($tempo[$i] eq 'td') || ($tempo[$i] eq 'th')) {
1.336 foxr 1385: $signal = 1;
1.227 sakharuk 1386: }
1387: }
1.375 foxr 1388: if ($signal != 1) {
1.219 sakharuk 1389: $currentstring .= '\strut \\\\ \strut ';
1.1 sakharuk 1390: }
1.468 raeburn 1391:
1.144 sakharuk 1392: }
1.122 albertel 1393: return $currentstring;
1394: }
1395:
1396: sub end_br {
1397: my ($target,$token) = @_;
1398: my $currentstring = '';
1.325 albertel 1399: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1400: $currentstring .= $token->[2];
1401: }
1402: return $currentstring;
1403: }
1404:
1.181 sakharuk 1405: #-- <big> tag (end tag required)
1.122 albertel 1406: sub start_big {
1407: my ($target,$token) = @_;
1408: my $currentstring = '';
1.325 albertel 1409: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1410: $currentstring .= $token->[4];
1411: } elsif ($target eq 'tex') {
1.137 sakharuk 1412: $currentstring .= '{\large ';
1.468 raeburn 1413: }
1.122 albertel 1414: return $currentstring;
1415: }
1416:
1417: sub end_big {
1418: my ($target,$token) = @_;
1419: my $currentstring = '';
1.325 albertel 1420: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1421: $currentstring .= $token->[2];
1422: } elsif ($target eq 'tex') {
1423: $currentstring .= '}';
1424: }
1425: return $currentstring;
1426: }
1427:
1.181 sakharuk 1428: #-- <small> tag (end tag required)
1.122 albertel 1429: sub start_small {
1430: my ($target,$token) = @_;
1431: my $currentstring = '';
1.325 albertel 1432: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1433: $currentstring .= $token->[4];
1434: } elsif ($target eq 'tex') {
1435: $currentstring .= '{\footnotesize ';
1.144 sakharuk 1436: }
1.122 albertel 1437: return $currentstring;
1438: }
1439:
1440: sub end_small {
1441: my ($target,$token) = @_;
1442: my $currentstring = '';
1.325 albertel 1443: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1444: $currentstring .= $token->[2];
1445: } elsif ($target eq 'tex') {
1446: $currentstring .= '}';
1447: }
1448: return $currentstring;
1449: }
1450:
1.181 sakharuk 1451: #-- <basefont> tag (end tag forbidden)
1.122 albertel 1452: sub start_basefont {
1.126 sakharuk 1453: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.122 albertel 1454: my $currentstring = '';
1.325 albertel 1455: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 1456: $currentstring = $token->[4];
1.126 sakharuk 1457: } elsif ($target eq 'tex') {
1458: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1459: if (defined $basesize) {
1460: $currentstring = '{\\'.$basesize.' ';
1461: }
1462: }
1.122 albertel 1463: return $currentstring;
1464: }
1465:
1466: sub end_basefont {
1.126 sakharuk 1467: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1468: my $currentstring = '';
1.325 albertel 1469: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 1470: $currentstring = $token->[4];
1.126 sakharuk 1471: } elsif ($target eq 'tex') {
1472: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1473: if (defined $basesize) {
1474: $currentstring = '}';
1475: }
1476: }
1.122 albertel 1477: return $currentstring;
1478: }
1479:
1.181 sakharuk 1480: #-- <font> tag (end tag required)
1.122 albertel 1481: sub start_font {
1482: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1483: my $currentstring = '';
1.325 albertel 1484: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1485: my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
1.468 raeburn 1486: $currentstring = $token->[4];
1.126 sakharuk 1487: } elsif ($target eq 'tex') {
1488: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1489: if (defined $fontsize) {
1490: $currentstring = '{\\'.$fontsize.' ';
1491: }
1492: }
1.122 albertel 1493: return $currentstring;
1494: }
1495:
1496: sub end_font {
1497: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1498: my $currentstring = '';
1.325 albertel 1499: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 1500: $currentstring = $token->[2];
1.126 sakharuk 1501: } elsif ($target eq 'tex') {
1502: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1503: if (defined $fontsize) {
1504: $currentstring = '}';
1505: }
1506: }
1.122 albertel 1507: return $currentstring;
1508: }
1.468 raeburn 1509:
1.181 sakharuk 1510: #-- <strike> tag (end tag required)
1.122 albertel 1511: sub start_strike {
1512: my ($target,$token) = @_;
1513: my $currentstring = '';
1.325 albertel 1514: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1515: $currentstring .= $token->[4];
1516: } elsif ($target eq 'tex') {
1517: &Apache::lonxml::startredirection();
1.468 raeburn 1518: }
1.122 albertel 1519: return $currentstring;
1520: }
1521:
1522: sub end_strike {
1523: my ($target,$token) = @_;
1524: my $currentstring = '';
1.325 albertel 1525: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1526: $currentstring .= $token->[2];
1527: } elsif ($target eq 'tex') {
1528: $currentstring=&Apache::lonxml::endredirection();
1.468 raeburn 1529: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1530: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1.122 albertel 1531: $currentstring=~s/(\S)\s*$/$1\}/;
1532: }
1533: return $currentstring;
1534: }
1535:
1.181 sakharuk 1536: #-- <s> tag (end tag required)
1.122 albertel 1537: sub start_s {
1538: my ($target,$token) = @_;
1539: my $currentstring = '';
1.325 albertel 1540: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1541: $currentstring .= $token->[4];
1542: } elsif ($target eq 'tex') {
1543: &Apache::lonxml::startredirection();
1.468 raeburn 1544: }
1.122 albertel 1545: return $currentstring;
1546: }
1547:
1548: sub end_s {
1549: my ($target,$token) = @_;
1550: my $currentstring = '';
1.325 albertel 1551: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1552: $currentstring .= $token->[2];
1553: } elsif ($target eq 'tex') {
1554: $currentstring=&Apache::lonxml::endredirection();
1555: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1556: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1557: $currentstring=~s/(\S)\s*$/$1\}/;
1558: }
1559: return $currentstring;
1560: }
1561:
1.181 sakharuk 1562: #-- <sub> tag (end tag required)
1.122 albertel 1563: sub start_sub {
1564: my ($target,$token) = @_;
1565: my $currentstring = '';
1.325 albertel 1566: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1567: $currentstring .= $token->[4];
1568: } elsif ($target eq 'tex') {
1.355 foxr 1569: $currentstring .= '\raisebox{-\smallskipamount}{\scriptsize{';
1.468 raeburn 1570: }
1.122 albertel 1571: return $currentstring;
1572: }
1573:
1574: sub end_sub {
1575: my ($target,$token) = @_;
1576: my $currentstring = '';
1.325 albertel 1577: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1578: $currentstring .= $token->[2];
1579: } elsif ($target eq 'tex') {
1.202 sakharuk 1580: $currentstring .= '}}';
1.122 albertel 1581: }
1582: return $currentstring;
1583: }
1584:
1.181 sakharuk 1585: #-- <sup> tag (end tag required)
1.122 albertel 1586: sub start_sup {
1587: my ($target,$token) = @_;
1588: my $currentstring = '';
1.325 albertel 1589: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1590: $currentstring .= $token->[4];
1591: } elsif ($target eq 'tex') {
1.355 foxr 1592: $currentstring .= '\raisebox{\smallskipamount}{\scriptsize{';
1.468 raeburn 1593: }
1.122 albertel 1594: return $currentstring;
1595: }
1596:
1597: sub end_sup {
1598: my ($target,$token) = @_;
1599: my $currentstring = '';
1.325 albertel 1600: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1601: $currentstring .= $token->[2];
1602: } elsif ($target eq 'tex') {
1.202 sakharuk 1603: $currentstring .= '}}';
1.122 albertel 1604: }
1605: return $currentstring;
1606: }
1607:
1.181 sakharuk 1608: #-- <hr> tag (end tag forbidden)
1.122 albertel 1609: sub start_hr {
1.124 sakharuk 1610: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1611: my $currentstring = &end_p(); # End enclosing para.
1.325 albertel 1612: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1613: $currentstring .= $token->[4];
1614: } elsif ($target eq 'tex') {
1.361 foxr 1615:
1616: # <hr /> can't be inside of <sup><sub> thank you LaTeX.
1.468 raeburn 1617: #
1.361 foxr 1618: my $restart_sub = 0;
1619: my $restart_sup = 0;
1620:
1621: # Since <sub> and <sup> are simple tags it's ok to turn off/on
1622: # using the start_ stop_ functions.. those tags only care about
1623: # $target.
1624:
1625: if (&is_inside_of($tagstack, "sub")) {
1626: $restart_sub = 1;
1.468 raeburn 1627: $currentstring .= &end_sub($target, $token, $tagstack,
1.361 foxr 1628: $parstack, $parser, $safeeval);
1629: }
1630: if (&is_inside_of($tagstack, "sup")) {
1631: $restart_sup = 1;
1632: $currentstring .= &end_sup($target, $token, $tagstack,
1633: $parstack, $parser, $safeeval);
1634: }
1635:
1.149 sakharuk 1636: my $LaTeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1.124 sakharuk 1637: if (defined $LaTeXwidth) {
1638: if ($LaTeXwidth=~/^%/) {
1639: substr($LaTeXwidth,0,1)='';
1640: $LaTeXwidth=($LaTeXwidth/100).'\textwidth';
1641: }
1642: } else {
1.148 sakharuk 1643: $LaTeXwidth ='0.9\textwidth';
1.124 sakharuk 1644: }
1645: my ($pre,$post);
1646: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1647: if (($align eq 'center') || (not defined $align)) {
1648: $pre=''; $post='';
1649: } elsif ($align eq 'left') {
1650: $pre='\rlap{'; $post='} \hfill';
1651: } elsif ($align eq 'right') {
1652: $pre=' \hfill \llap{'; $post='}';
1653: }
1.148 sakharuk 1654: $currentstring .= ' \vskip 0 mm \noindent\makebox['.$LaTeXwidth.']{'.$pre.'\makebox['.
1.124 sakharuk 1655: $LaTeXwidth.'][b]{\hrulefill}'.$post.'}\vskip 0 mm ';
1.361 foxr 1656: # Turn stuff back on that we can't be inside of.
1657:
1658: if ($restart_sub) {
1659: $currentstring .= &start_sub($target, $token, $tagstack,
1660: $parstack, $parser, $safeeval);
1661: }
1662: if ($restart_sup) {
1663: $currentstring .= &start_sup($target, $token, $tagstack,
1664: $parstack, $parser, $safeeval);
1665: }
1.468 raeburn 1666: }
1.122 albertel 1667: return $currentstring;
1668: }
1669:
1670: sub end_hr {
1671: my ($target,$token) = @_;
1672: my $currentstring = '';
1.325 albertel 1673: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1674: $currentstring .= $token->[2];
1.148 sakharuk 1675: }
1.122 albertel 1676: return $currentstring;
1677: }
1678:
1.181 sakharuk 1679: #-- <div> tag (end tag required)
1.280 foxr 1680: {
1681:
1682: # Since div can be nested, the stack below is used
1683: # in 'tex' mode to store the ending strings
1684: # for the div stack.
1685:
1686: my @div_end_stack;
1687:
1.122 albertel 1688: sub start_div {
1.280 foxr 1689: my ($target,$token, $tagstack, $parstack, $parser, $safeeval) = @_;
1.279 foxr 1690: my $currentstring = &end_p(); # Close enclosing para.
1.325 albertel 1691: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1692: $currentstring .= $token->[4];
1.468 raeburn 1693: }
1.280 foxr 1694: if ($target eq 'tex') {
1695: # 4 possible alignments: left, right, center, and -missing-.
1.380 foxr 1696: # If inside a table row, we must let the table logic
1697: # do the alignment, however.
1.468 raeburn 1698: #
1.280 foxr 1699:
1700: my $endstring = '';
1701:
1702: my $align = lc(&Apache::lonxml::get_param('align', $parstack,
1703: $safeeval, undef, 1));
1704: if ($align eq 'center') {
1705: $currentstring .= '\begin{center}';
1706: $endstring = '\end{center}';
1.309 albertel 1707: if (&is_inside_of($tagstack, "table")) {
1708: $currentstring = ¢er_correction().$currentstring;
1.468 raeburn 1709: $endstring .= ¢er_end_correction();
1.309 albertel 1710: }
1.280 foxr 1711: }
1712: elsif ($align eq 'right') {
1713: $currentstring .= '\begin{flushright}';
1714: $endstring .= '\end{flushright}';
1715: } elsif ($align eq 'left') {
1716: $currentstring .= '\begin{flushleft}';
1717: $endstring = '\end{flushleft}';
1718: } else {
1719:
1720: }
1721: $currentstring .= "\n"; # For human readability.
1722: $endstring = "\n$endstring\n"; # For human readability
1723: push(@div_end_stack, $endstring);
1724: }
1.122 albertel 1725: return $currentstring;
1726: }
1727:
1728: sub end_div {
1729: my ($target,$token) = @_;
1730: my $currentstring = '';
1.325 albertel 1731: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1732: $currentstring .= $token->[2];
1.280 foxr 1733: }
1734: if ($target eq 'tex') {
1735: my $endstring = pop @div_end_stack;
1736: $currentstring .= $endstring;
1737: }
1.122 albertel 1738: return $currentstring;
1739: }
1.280 foxr 1740: }
1.122 albertel 1741:
1.181 sakharuk 1742: #-- <a> tag (end tag required)
1.122 albertel 1743: sub start_a {
1.149 sakharuk 1744: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1745: my $currentstring = '';
1.325 albertel 1746: if ($target eq 'web' || $target eq 'webgrade') {
1.250 albertel 1747: my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
1748: undef,1);
1749: $currentstring=&Apache::lonenc::encrypt_ref($token,{'href'=>$href});
1.400 raeburn 1750: if ($href =~ /\S/) {
1751: if ($href !~ m{^https?://}) {
1752: my $url=&Apache::lonnet::hreflocation('',$env{'request.filename'});
1753: my $linkurl;
1754: if ($href =~ m{^/uploaded/}) {
1755: $linkurl = $href;
1756: } elsif ($href =~ m{^[^/]}) {
1757: my $path = $url;
1758: $path =~ s{[^/]*$}{};
1759: $linkurl = $path.$href;
1760: }
1761: if ($linkurl =~ m{^/uploaded/}) {
1762: if (!&Apache::lonnet::allowed('bre',$linkurl)) {
1763: if (&Apache::lonnet::is_on_map($url)) {
1764: &Apache::lonxml::extlink($linkurl);
1.447 raeburn 1765: } elsif ($env{'request.course.id'}) {
1766: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
1767: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
1.454 raeburn 1768: if ($linkurl =~ m{^([^/]|/uploaded/$cdom/$cnum/(docs|supplemental)/)}) {
1.448 raeburn 1769: my $cleanhref = &clean_docs_httpref($linkurl,$url,$cdom,$cnum);
1.447 raeburn 1770: if ($cleanhref) {
1771: &Apache::lonxml::extlink($cleanhref);
1772: }
1773: }
1.400 raeburn 1774: }
1775: }
1776: }
1777: }
1778: }
1.122 albertel 1779: }
1780: return $currentstring;
1781: }
1782:
1783: sub end_a {
1.168 albertel 1784: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1785: my $currentstring = '';
1.325 albertel 1786: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1787: $currentstring .= $token->[2];
1788: }
1.351 foxr 1789: if ($target eq 'tex') {
1.352 albertel 1790: my $href =
1791: &Apache::lonxml::get_param('href',$parstack,$safeeval,undef,1);
1792: my $name =
1793: &Apache::lonxml::get_param('name',$parstack,$safeeval,undef,1);
1.382 www 1794: my $uriprint =
1795: &Apache::lonxml::get_param('uriprint',$parstack,$safeeval,undef,1);
1796: my $anchorprint =
1797: &Apache::lonxml::get_param('anchorprint',$parstack,$safeeval,undef,1);
1798: if (($href =~ /\S/) && ($uriprint=~/^on|uriprint|yes|1$/i)) {
1.352 albertel 1799: $href =~ s/([^\\])%/$1\\\%/g;
1.365 foxr 1800: # Substitute special symbols... and allow line breaks at each /
1801: #
1802: $href = &Apache::lonxml::latex_special_symbols($href);
1803: $href =~ s/\//\/\\-/g; # Map / to /\- to allow hyphenation.
1804: $currentstring .= ' ({\tt URI:'.$href.'})';
1.382 www 1805: } elsif (($name =~ /\S/) && ($anchorprint=~/^on|anchorprint|yes|1$/i)) {
1.352 albertel 1806: $currentstring .= ' ({\tt Anchor:'.&Apache::lonxml::latex_special_symbols($name).'})';
1.351 foxr 1807: } else {
1808: $currentstring.='';
1809: }
1810: }
1.122 albertel 1811: return $currentstring;
1812: }
1813:
1.181 sakharuk 1814: #-- <li> tag (end tag optional)
1.122 albertel 1815: sub start_li {
1.168 albertel 1816: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 1817: my $currentstring = '';
1.325 albertel 1818: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 1819: $currentstring = $token->[4];
1.122 albertel 1820: } elsif ($target eq 'tex') {
1.237 sakharuk 1821: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1822: my $value=&Apache::lonxml::get_param('value',$parstack,$safeeval,undef,0);
1.468 raeburn 1823: #FIXME need to support types i and I
1.238 albertel 1824: if ($type=~/disc/) {
1825: $currentstring .= ' \item[$\bullet$] ';
1826: } elsif ($type=~/circle/) {
1827: $currentstring .= ' \item[$\circ$] ';
1.146 sakharuk 1828: } elsif ($type=~/square/) {
1.238 albertel 1829: $currentstring .= ' \item[$\diamond$] ';
1830: } elsif ($type eq '1') {
1831: $currentstring .= ' \item['.($Apache::londefdef::list_index+1).'.]';
1.237 sakharuk 1832: } elsif ($type eq 'A') {
1.238 albertel 1833: $currentstring .= ' \item['.('A'..'Z')[$Apache::londefdef::list_index].'.]';
1.237 sakharuk 1834: } elsif ($type eq 'a') {
1.238 albertel 1835: $currentstring .= ' \item['.('a'..'z')[$Apache::londefdef::list_index].'.]';
1.237 sakharuk 1836: } elsif ($value ne '') {
1837: $currentstring .= ' \item['.$value.'] ';
1.122 albertel 1838: } else {
1.146 sakharuk 1839: $currentstring .= ' \item ';
1.468 raeburn 1840: }
1.238 albertel 1841: $Apache::londefdef::list_index++;
1842: }
1.122 albertel 1843: return $currentstring;
1844: }
1845:
1846: sub end_li {
1847: my ($target,$token) = @_;
1.279 foxr 1848: my $currentstring = &end_p(); # In case there's a <p> in the <li>
1.325 albertel 1849: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 1850: $currentstring .= $token->[2];
1851: }
1.122 albertel 1852: return $currentstring;
1853: }
1854:
1.181 sakharuk 1855: #-- <u> tag (end tag required)
1.122 albertel 1856: sub start_u {
1857: my ($target,$token) = @_;
1858: my $currentstring = '';
1.325 albertel 1859: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1860: $currentstring .= $token->[4];
1861: } elsif ($target eq 'tex') {
1862: &Apache::lonxml::startredirection();
1.468 raeburn 1863: }
1.122 albertel 1864: return $currentstring;
1865: }
1866:
1867: sub end_u {
1868: my ($target,$token) = @_;
1869: my $currentstring = '';
1.325 albertel 1870: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 1871: $currentstring .= $token->[2];
1872: } elsif ($target eq 'tex') {
1873: $currentstring=&Apache::lonxml::endredirection();
1874: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1875: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1876: $currentstring=~s/(\S)\s*$/$1\}/;
1877: }
1878: return $currentstring;
1879: }
1880:
1.181 sakharuk 1881: #-- <ul> tag (end tag required)
1.122 albertel 1882: sub start_ul {
1.125 sakharuk 1883: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1884: my $currentstring = &end_p(); # Close off enclosing list.
1.325 albertel 1885: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 1886: $currentstring .= $token->[4];
1.122 albertel 1887: } elsif ($target eq 'tex') {
1.125 sakharuk 1888: my $TeXtype=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1.238 albertel 1889: $Apache::londefdef::list_index=0;
1.125 sakharuk 1890: if ($TeXtype eq 'disc') {
1.222 sakharuk 1891: $currentstring .= '\renewcommand{\labelitemi}{$\bullet$}'.
1.468 raeburn 1892: '\renewcommand{\labelitemii}{$\bullet$}'.
1.222 sakharuk 1893: '\renewcommand{\labelitemiii}{$\bullet$}'.
1894: '\renewcommand{\labelitemiv}{$\bullet$}';
1.125 sakharuk 1895: } elsif ($TeXtype eq 'circle') {
1.222 sakharuk 1896: $currentstring .= '\renewcommand{\labelitemi}{$\circ$}'.
1.468 raeburn 1897: '\renewcommand{\labelitemii}{$\circ$}'.
1.222 sakharuk 1898: '\renewcommand{\labelitemiii}{$\circ$}'.
1899: '\renewcommand{\labelitemiv}{$\circ$}';
1.125 sakharuk 1900: } elsif ($TeXtype eq 'square') {
1.222 sakharuk 1901: $currentstring .= '\renewcommand{\labelitemi}{$\diamond$}'.
1.468 raeburn 1902: '\renewcommand{\labelitemii}{$\diamond$}'.
1.222 sakharuk 1903: '\renewcommand{\labelitemiii}{$\diamond$}'.
1904: '\renewcommand{\labelitemiv}{$\diamond$}';
1.125 sakharuk 1905: }
1.468 raeburn 1906: $currentstring .= '\strut \begin{itemize}';
1907: }
1.122 albertel 1908: return $currentstring;
1909: }
1910:
1911: sub end_ul {
1912: my ($target,$token) = @_;
1913: my $currentstring = '';
1.325 albertel 1914: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 1915: $currentstring = $token->[2];
1.122 albertel 1916: } elsif ($target eq 'tex') {
1.222 sakharuk 1917: $currentstring = '\end{itemize} \renewcommand{\labelitemi}{$\bullet$}'.
1.468 raeburn 1918: '\renewcommand{\labelitemii}{$\bullet$}'.
1.222 sakharuk 1919: '\renewcommand{\labelitemiii}{$\bullet$}'.
1.468 raeburn 1920: '\renewcommand{\labelitemiv}{$\bullet$}\strut ';
1921: }
1.122 albertel 1922: return $currentstring;
1923: }
1924:
1.181 sakharuk 1925: #-- <menu> tag (end tag required)
1.122 albertel 1926: sub start_menu {
1927: my ($target,$token) = @_;
1928: my $currentstring = '';
1.325 albertel 1929: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 1930: $currentstring = $token->[4];
1.122 albertel 1931: } elsif ($target eq 'tex') {
1.468 raeburn 1932: $currentstring = " \\begin{itemize} ";
1933: }
1.122 albertel 1934: return $currentstring;
1935: }
1936:
1937: sub end_menu {
1938: my ($target,$token) = @_;
1939: my $currentstring = '';
1.325 albertel 1940: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 1941: $currentstring = $token->[2];
1.122 albertel 1942: } elsif ($target eq 'tex') {
1.468 raeburn 1943: $currentstring = " \\end{itemize}";
1944: }
1.122 albertel 1945: return $currentstring;
1946: }
1947:
1.181 sakharuk 1948: #-- <dir> tag (end tag required)
1.122 albertel 1949: sub start_dir {
1950: my ($target,$token) = @_;
1.279 foxr 1951: my $currentstring = &end_p(); # In case there's a <p> prior to the list.
1.325 albertel 1952: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 1953: $currentstring .= $token->[4];
1.122 albertel 1954: } elsif ($target eq 'tex') {
1.468 raeburn 1955: $currentstring .= " \\begin{itemize} ";
1956: }
1.122 albertel 1957: return $currentstring;
1958: }
1959:
1960: sub end_dir {
1961: my ($target,$token) = @_;
1962: my $currentstring = '';
1.325 albertel 1963: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 1964: $currentstring = $token->[2];
1.122 albertel 1965: } elsif ($target eq 'tex') {
1.468 raeburn 1966: $currentstring = " \\end{itemize}";
1967: }
1.122 albertel 1968: return $currentstring;
1969: }
1970:
1.181 sakharuk 1971: #-- <ol> tag (end tag required)
1.122 albertel 1972: sub start_ol {
1.125 sakharuk 1973: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 1974: my $currentstring = &end_p(); # In case there's a <p> prior to the list.
1.325 albertel 1975: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 1976: $currentstring .= $token->[4];
1.122 albertel 1977: } elsif ($target eq 'tex') {
1.238 albertel 1978: $Apache::londefdef::list_index=0;
1.125 sakharuk 1979: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1980: if ($type eq '1') {
1.222 sakharuk 1981: $currentstring .= '\renewcommand{\labelenumi}{\arabic{enumi}.}'.
1.468 raeburn 1982: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
1.222 sakharuk 1983: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1984: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}';
1.125 sakharuk 1985: } elsif ($type eq 'A') {
1.222 sakharuk 1986: $currentstring .= '\renewcommand{\labelenumi}{\Alph{enumi}.}'.
1.468 raeburn 1987: '\renewcommand{\labelenumii}{\Alph{enumii}.}'.
1.222 sakharuk 1988: '\renewcommand{\labelenumiii}{\Alph{enumiii}.}'.
1989: '\renewcommand{\labelenumiv}{\Alph{enumiv}.}';
1.125 sakharuk 1990: } elsif ($type eq 'a') {
1.222 sakharuk 1991: $currentstring .= '\renewcommand{\labelenumi}{\alph{enumi}.}'.
1992: '\renewcommand{\labelenumii}{\alph{enumii}.}'.
1993: '\renewcommand{\labelenumiii}{\alph{enumiii}.}'.
1994: '\renewcommand{\labelenumiv}{\alph{enumiv}.}';
1.125 sakharuk 1995: } elsif ($type eq 'i') {
1.222 sakharuk 1996: $currentstring .= '\renewcommand{\labelenumi}{\roman{enumi}.}'.
1997: '\renewcommand{\labelenumii}{\roman{enumii}.}'.
1998: '\renewcommand{\labelenumiii}{\roman{enumiii}.}'.
1999: '\renewcommand{\labelenumiv}{\roman{enumiv}.}';
1.125 sakharuk 2000: } elsif ($type eq 'I') {
1.222 sakharuk 2001: $currentstring .= '\renewcommand{\labelenumi}{\Roman{enumi}.}'.
2002: '\renewcommand{\labelenumii}{\Roman{enumii}.}'.
2003: '\renewcommand{\labelenumiii}{\Roman{enumiii}.}'.
2004: '\renewcommand{\labelenumiv}{\Roman{enumiv}.}';
1.125 sakharuk 2005: }
1.468 raeburn 2006: $currentstring .= '\strut \begin{enumerate}';
2007: }
1.122 albertel 2008: return $currentstring;
2009: }
2010:
2011: sub end_ol {
2012: my ($target,$token) = @_;
2013: my $currentstring = '';
1.325 albertel 2014: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 2015: $currentstring = $token->[2];
1.122 albertel 2016: } elsif ($target eq 'tex') {
1.222 sakharuk 2017: $currentstring = '\end{enumerate}\renewcommand{\labelenumi}{\arabic{enumi}.}'.
2018: '\renewcommand{\labelenumii}{\arabic{enumii}.}'.
2019: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
1.468 raeburn 2020: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}\strut ';
2021: }
1.122 albertel 2022: return $currentstring;
2023: }
2024:
1.181 sakharuk 2025: #-- <dl> tag (end tag required)
1.122 albertel 2026: sub start_dl {
2027: my ($target,$token) = @_;
1.279 foxr 2028: my $currentstring = &end_p(); # In case there's a <p> unclosed prior to the list.
1.325 albertel 2029: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 2030: $currentstring .= $token->[4];
1.122 albertel 2031: } elsif ($target eq 'tex') {
1.277 foxr 2032: $currentstring .= '\begin{description}';
1.243 albertel 2033: $Apache::londefdef::DL++;
2034: push(@Apache::londefdef::description,[]);
2035: $Apache::londefdef::DD[$Apache::londefdef::DL]=0;
2036: $Apache::londefdef::DT[$Apache::londefdef::DL]=0;
1.244 albertel 2037: $Apache::londefdef::seenDT[$Apache::londefdef::DL]=0;
1.468 raeburn 2038: }
1.122 albertel 2039: return $currentstring;
2040: }
2041:
2042: sub end_dl {
1.174 sakharuk 2043: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 2044: my $currentstring = '';
1.325 albertel 2045: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 2046: $currentstring = $token->[2];
1.122 albertel 2047: } elsif ($target eq 'tex') {
1.243 albertel 2048: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
2049: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
2050: foreach my $element (@{$Apache::londefdef::description[-1]}) {
1.174 sakharuk 2051: $currentstring.=' '.$element.' ';
2052: }
1.243 albertel 2053: pop(@Apache::londefdef::description);
1.468 raeburn 2054: $currentstring.='\end{description}';
1.243 albertel 2055: delete($Apache::londefdef::DD[$Apache::londefdef::DL]);
2056: delete($Apache::londefdef::DT[$Apache::londefdef::DL]);
1.244 albertel 2057: delete($Apache::londefdef::seenDT[$Apache::londefdef::DL]);
1.243 albertel 2058: $Apache::londefdef::DL--;
1.468 raeburn 2059: }
1.122 albertel 2060: return $currentstring;
2061: }
2062:
1.172 sakharuk 2063: #-- <dt> tag (end tag optional)
1.122 albertel 2064: sub start_dt {
1.172 sakharuk 2065: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2066: my $currentstring='';
1.325 albertel 2067: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 2068: $currentstring = $token->[4];
1.122 albertel 2069: } elsif ($target eq 'tex') {
1.243 albertel 2070: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
2071: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
1.174 sakharuk 2072: &Apache::lonxml::startredirection();
1.243 albertel 2073: $Apache::londefdef::DT[-1]++;
1.244 albertel 2074: $Apache::londefdef::seenDT[-1]=1;
1.468 raeburn 2075: }
1.122 albertel 2076: return $currentstring;
2077: }
2078:
2079: sub end_dt {
1.172 sakharuk 2080: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 2081: my $currentstring = '';
1.325 albertel 2082: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 2083: $currentstring = $token->[2];
1.122 albertel 2084: } elsif ($target eq 'tex') {
1.243 albertel 2085: if ($Apache::londefdef::DT[-1]) {
2086: my $data=&item_cleanup();
1.244 albertel 2087: push(@{$Apache::londefdef::description[-1]},'\item['.$data.'] \strut \vskip 0mm');
1.243 albertel 2088: $Apache::londefdef::DT[-1]--;
2089: }
1.468 raeburn 2090: }
1.122 albertel 2091: return $currentstring;
2092: }
2093:
1.173 sakharuk 2094: sub item_cleanup {
1.174 sakharuk 2095: my $item=&Apache::lonxml::endredirection();
1.460 raeburn 2096: $item=~s/\\begin\{center}//g;
2097: $item=~s/\\end\{center}//g;
1.173 sakharuk 2098: return $item;
2099: }
2100:
1.181 sakharuk 2101: #-- <dd> tag (end tag optional)
1.122 albertel 2102: sub start_dd {
1.147 sakharuk 2103: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 2104: my $currentstring = '';
1.325 albertel 2105: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 2106: $currentstring = $token->[4];
1.147 sakharuk 2107: } elsif ($target eq 'tex') {
1.243 albertel 2108: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
2109: if ($Apache::londefdef::DD[-1]) { &end_dd(@_);}
1.244 albertel 2110: if (!$Apache::londefdef::seenDT[-1]) {
2111: push(@{$Apache::londefdef::description[-1]},'\item[\strut] \strut \vskip 0mm ');
2112: }
1.243 albertel 2113: push(@{$Apache::londefdef::description[-1]},'');
2114: $Apache::londefdef::description[-1]->[-1].=' \strut ';
2115: $Apache::londefdef::DD[-1]++;
1.174 sakharuk 2116: &Apache::lonxml::startredirection();
1.468 raeburn 2117: }
1.122 albertel 2118: return $currentstring;
2119: }
2120:
2121: sub end_dd {
1.174 sakharuk 2122: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 2123: my $currentstring = '';
1.325 albertel 2124: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 2125: $currentstring = $token->[2];
1.174 sakharuk 2126: } elsif ($target eq 'tex') {
1.243 albertel 2127: $Apache::londefdef::description[-1]->[-1].=
2128: &Apache::lonxml::endredirection().' \vskip 0mm ';
2129: $Apache::londefdef::DD[-1]--;
1.174 sakharuk 2130: }
1.122 albertel 2131: return $currentstring;
2132: }
2133:
1.181 sakharuk 2134: #-- <table> tag (end tag required)
1.277 foxr 2135: # <table> also ends any prior <p> that is not closed.
2136: # but, unless I allow <p>'s to nest, that's the
1.468 raeburn 2137: # only way I could think of to allow <p> in
1.277 foxr 2138: # <tr> <th> bodies
2139: #
1.398 foxr 2140: #list of supported attributes: border,width,TeXwidth,TeXtheme
2141: # align
1.91 sakharuk 2142: sub start_table {
2143: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.277 foxr 2144: my $textwidth = '';
1.279 foxr 2145: my $currentstring = &end_p();
1.325 albertel 2146: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 2147: $currentstring .= $token->[4];
1.91 sakharuk 2148: } elsif ($target eq 'tex') {
1.396 foxr 2149: &disable_para(); # Can't have paras in a table.
1.398 foxr 2150:
2151: # Get the parameters that we can do something about:
2152:
2153: my $border = &Apache::lonxml::get_param('border', $parstack, $safeeval, undef, 0);
2154: my $width = &Apache::lonxml::get_param('TeXwidth', $parstack, $safeeval, undef, 0);
2155: my $theme = &Apache::lonxml::get_param('TeXtheme', $parstack, $safeeval, undef, 0);
2156: my $align = &Apache::lonxml::get_param('align', $parstack, $safeeval, undef, 0);
1.420 foxr 2157: my $cell_border = &Apache::lonxml::get_param('rules', $parstack, $safeeval, undef, 0);
1.398 foxr 2158:
2159: # The only thing that needs any figuring out is the width.. and then only if it is
2160: # a percent. If not it's assumed to be some valid TeX measurement unit e.g. 3.0cm
2161: #
2162:
2163: my $table = new Apache::lontable();
1.420 foxr 2164: if ((defined $border) && ($border > 0)) {
1.421 raeburn 2165: # &Apache::lonnet::logthis("Turning on table borders: $border");
1.398 foxr 2166: $table->table_border(1);
1.428 foxr 2167: if (!defined $cell_border) {
2168: $table->cell_border(1); # Default for rules is all if rules not defined.
1.420 foxr 2169: }
2170: }
2171:
1.428 foxr 2172: if ((defined $cell_border)) {
2173: if ($cell_border eq 'all') {
2174: $table->cell_border(1);
2175: } elsif ($cell_border eq 'rows') {
2176: $table->cell_border(2);
2177: } elsif ($cell_border eq 'cols') {
2178: $table->cell_border(3);
1.430 foxr 2179: } elsif($cell_border eq 'groups') {
2180: $table->cell_border(4);
1.428 foxr 2181: } else {
2182: $table->cell_border(0);
2183: }
1.398 foxr 2184: }
1.420 foxr 2185: if (defined $theme) {
1.398 foxr 2186: $table->theme($theme);
2187: }
1.420 foxr 2188: if (defined $align) {
1.398 foxr 2189: $table->alignment($align);
2190: }
2191:
2192: # Missing width is most of page width
2193:
1.420 foxr 2194: if (!(defined $width)) {
1.398 foxr 2195: $width = '70%';
2196: }
1.420 foxr 2197:
1.398 foxr 2198: # If a percentage, need to calculate what this means in terms of
2199: # page width:
2200:
2201: if ($width =~ /%$/) {
2202: my $textwidth = &recalc($env{'form.textwidth'}); # Page width in mm.
2203: $width =~ s/%//;
2204: $width = $width * $textwidth / 100.0;
2205: $width .= " mm";
2206: $table->width($width);
2207: }
2208:
2209: push(@Apache::londefdef::table, $table);
2210: $currentstring.=' \keephidden{NEW TABLE ENTRY}';
2211:
1.294 foxr 2212: }
1.91 sakharuk 2213: return $currentstring;
2214: }
1.468 raeburn 2215:
1.122 albertel 2216: sub end_table {
2217: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2218: my $currentstring = '';
1.325 albertel 2219: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 2220: $currentstring = $token->[2];
1.122 albertel 2221: } elsif ($target eq 'tex') {
1.425 foxr 2222:
2223:
1.398 foxr 2224: my $table = pop(@Apache::londefdef::table);
2225: my $t = $table->generate();
1.423 raeburn 2226: # &Apache::lonnet::logthis("Generating string");
1.398 foxr 2227: $currentstring = $t->generate_string();
1.423 raeburn 2228: # &Apache::lonnet::logthis("Generated: $currentstring");
1.398 foxr 2229: &enable_para();
1.425 foxr 2230:
1.398 foxr 2231: }
1.122 albertel 2232: return $currentstring;
2233: }
2234:
1.166 sakharuk 2235: #-- <tr> tag (end tag optional)
1.122 albertel 2236: sub start_tr {
2237: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2238: my $currentstring = '';
1.325 albertel 2239: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 2240: $currentstring = $token->[4];
1.122 albertel 2241: } elsif ($target eq 'tex') {
1.398 foxr 2242:
2243: my $align = &Apache::lonxml::get_param('align', $parstack, $safeeval, undef, 1);
2244: $Apache::londefdef::table[-1]->start_row();
2245:
2246: if ($align ne '') {
2247: $Apache::londefdef::table[-1]->configure_row({default_halign => $align});
2248: }
2249:
2250: #---------------------------------------------------------------
2251: # Old table code.
2252: #---------------------------------------------------------------
2253:
2254: if (0) {
1.122 albertel 2255: $Apache::londefdef::table[-1]{'row_number'}++;
1.206 sakharuk 2256: my $alignchar=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1.122 albertel 2257: if ($alignchar ne '') {
1.206 sakharuk 2258: push @ {$Apache::londefdef::table[-1]{'rows'} },substr($alignchar,0,1);
1.122 albertel 2259: } else {
2260: push @ {$Apache::londefdef::table[-1]{'rows'} }, 'l';
2261: }
2262: push ( @{ $Apache::londefdef::table[-1]{'rowdata'} }, $Apache::londefdef::table[-1]{'hinc'});
1.300 foxr 2263: #
2264: # Need to save the number of table columns to preserve the max # columns.
2265: #
2266: $Apache::londefdef::table[-1]{'prior_columns'} = $Apache::londefdef::table[-1]{'counter_columns'};
1.122 albertel 2267: $Apache::londefdef::table[-1]{'counter_columns'} = -1;
1.206 sakharuk 2268: push @ {$Apache::londefdef::table[-1]{'TeXlen'}}, [];
2269: push @ {$Apache::londefdef::table[-1]{'objectlen'}}, [];
2270: push @ {$Apache::londefdef::table[-1]{'minlen'}}, [];
2271: push @ {$Apache::londefdef::table[-1]{'maxlen'}}, [];
2272: push @ {$Apache::londefdef::table[-1]{'content'}}, [];
1.398 foxr 2273: }
1.468 raeburn 2274: }
1.122 albertel 2275: return $currentstring;
2276: }
1.468 raeburn 2277:
1.122 albertel 2278: sub end_tr {
1.160 sakharuk 2279: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 2280: my $currentstring = &end_p(); # Close any pending <p> in the row.
1.325 albertel 2281: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 2282: $currentstring .= $token->[2];
1.122 albertel 2283: } elsif ($target eq 'tex') {
1.398 foxr 2284:
2285: # In case the user is missing a </td> or </th> tag:
2286:
2287: if ($Apache::londefdef::TD_redirection) {
1.468 raeburn 2288: &end_td_tex($parstack,$parser,$safeeval);
1.398 foxr 2289: }
2290: $Apache::londefdef::table[-1]->end_row();
2291:
2292: #-----------------------------------------------
2293: # Old table code
2294: #-----------------------------------------------
2295:
2296: if (0) {
1.160 sakharuk 2297: if ($Apache::londefdef::TD_redirection) {
1.468 raeburn 2298: &end_td_tex($parstack,$parser,$safeeval);
1.160 sakharuk 2299: }
1.300 foxr 2300: # Counter columns must be the maximum number of columns seen
2301: # in the table so far so:
2302: if ($Apache::londefdef::table[-1]{'prior_columns'} > $Apache::londefdef::table[-1]{'counter_columns'}) {
2303: $Apache::londefdef::table[-1]{'counter_columns'} = $Apache::londefdef::table[-1]{'prior_columns'};
2304: }
1.398 foxr 2305: }
1.295 foxr 2306:
1.294 foxr 2307:
1.122 albertel 2308: }
2309: return $currentstring;
2310: }
2311:
1.166 sakharuk 2312: #-- <td> tag (end tag optional)
1.122 albertel 2313: sub start_td {
2314: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2315: my $currentstring = '';
1.325 albertel 2316: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 2317: $currentstring = $token->[4];
1.122 albertel 2318: } elsif ($target eq 'tex') {
1.160 sakharuk 2319: $Apache::londefdef::TD_redirection = 1;
1.159 sakharuk 2320: &tag_check('tr','td',$tagstack,$parstack,$parser,$safeeval);
1.468 raeburn 2321: }
1.122 albertel 2322: return $currentstring;
1.468 raeburn 2323: }
2324:
1.159 sakharuk 2325: sub tag_check {
2326: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
1.468 raeburn 2327: my @ar=@$parstack;
1.160 sakharuk 2328: for (my $i=$#ar-1;$i>=0;$i--) {
2329: if (lc($$tagstack[$i]) eq $good_tag) {
2330: &start_td_tex($parstack,$parser,$safeeval);
2331: last;
2332: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2333: splice @ar, $i+1;
2334: &end_td_tex(\@ar,$parser,$safeeval);
2335: &start_td_tex($parstack,$parser,$safeeval);
2336: last;
1.159 sakharuk 2337: }
1.160 sakharuk 2338: }
1.159 sakharuk 2339: return '';
2340: }
1.398 foxr 2341:
2342: #
2343: # Factor out cell configuration hash generation:
2344: #
2345:
2346: sub cell_config_hash {
1.425 foxr 2347: my ($align, $rowspan, $colspan, $width) = @_;
1.426 raeburn 2348: if ($rowspan ne '') {
1.468 raeburn 2349: $rowspan =~ s/^\s+|\s+$//g;
1.426 raeburn 2350: }
2351: if ($colspan ne '') {
2352: $colspan =~ s/^\s+|\s+$//g;
2353: }
1.398 foxr 2354: my %config;
2355: if ($align ne '') {
2356: $config{'halign'} = $align;
2357: }
1.426 raeburn 2358: if (($colspan =~ /^\d+$/) && ($colspan > 0)) {
1.398 foxr 2359: $config{'colspan'} = $colspan;
2360: }
1.426 raeburn 2361: if (($rowspan =~ /^\d+$/) && ($rowspan > 0)) {
1.398 foxr 2362: $config{'rowspan'} = $rowspan;
2363: }
1.425 foxr 2364: if ($width ne '') {
2365: $config{'width'} = $width;
2366: }
1.398 foxr 2367: return \%config;
2368: }
1.468 raeburn 2369:
1.159 sakharuk 2370: sub start_td_tex {
2371: my ($parstack,$parser,$safeeval) = @_;
1.398 foxr 2372:
2373: # At this stage, an empty cell is created with the
2374: # appropriate rowspan/colspan and alignment
2375: # attributes, but empty of text. end_td_tex will
2376: # fetch the contents from the recursive parse and
2377: # fill the cell with them:
1.425 foxr 2378: my $align = &Apache::lonxml::get_param('align', $parstack, $safeeval);
2379: my $rowspan = &Apache::lonxml::get_param('rowspan', $parstack, $safeeval);
2380: my $colspan = &Apache::lonxml::get_param('colspan', $parstack, $safeeval);
2381: my $width = &Apache::lonxml::get_param('TeXwidth', $parstack, $safeeval);
2382: my $config = &cell_config_hash($align, $rowspan, $colspan, $width);
1.398 foxr 2383:
2384: my $table = $Apache::londefdef::table[-1];
2385: $table->add_cell('', $config);
1.468 raeburn 2386:
1.398 foxr 2387:
2388: #------------------------------------------------
2389: # Old table code.
2390: #------------------------------------------------
2391:
2392: if (0) {
2393:
1.206 sakharuk 2394: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2395: if ($alignchar eq '') {
2396: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
1.159 sakharuk 2397: }
1.206 sakharuk 2398: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
1.159 sakharuk 2399: $Apache::londefdef::table[-1]{'counter_columns'}++;
1.206 sakharuk 2400: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2401: if (defined $TeXwidth) {
2402: my $current_length=&recalc($TeXwidth);
2403: $current_length=~/(\d+\.?\d*)/;
2404: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2405: }
1.398 foxr 2406: }
1.159 sakharuk 2407: &Apache::lonxml::startredirection();
2408: return '';
2409: }
2410:
2411: sub end_td_tex {
1.398 foxr 2412:
2413: my $text = &Apache::lonxml::endredirection();
2414: my $table = $Apache::londefdef::table[-1];
2415: $table->append_cell_text($text);
2416:
2417: #-------------------------------------------------
2418: # Old table code
2419: #-------------------------------------------------
2420:
2421: if (0) {
1.159 sakharuk 2422: my ($parstack,$parser,$safeeval) = @_;
1.304 foxr 2423: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
1.468 raeburn 2424: my $current_column = $Apache::londefdef::table[-1]{'counter_columns'};
1.303 foxr 2425: my $data = &Apache::lonxml::endredirection();
2426:
1.305 foxr 2427: # The rowspan array of the table indicates which cells are part of a span.
2428: # n indicates the start of a span set of n rows.
2429: # ^ indicates a cell that continues a span set.
1.306 foxr 2430: # _ indicates the cell is at the bottom of a span set.
1.305 foxr 2431: # If this and subsequent cells are part of a rowspan, we must
2432: # push along the row until we find one that is not.
2433:
1.468 raeburn 2434: while ((defined $Apache::londefdef::table[-1]{'rowspan'}[$current_row] [$current_column])
1.306 foxr 2435: && ($Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column] =~ /[\^\_]/)) {
1.305 foxr 2436: # Part of a span.
2437: push @ {$Apache::londefdef::table[-1]{'content'}[-1]}, '';
2438: $current_column++;
2439: }
2440: $Apache::londefdef::table[-1]{'counter_columns'} = $current_column;
1.468 raeburn 2441:
1.305 foxr 2442:
1.320 foxr 2443: # Get the column and row spans.
2444: # Colspan can be done via \multicolumn if I can figure out the data structs.
2445:
2446: my $colspan = &Apache::lonxml::get_param('colspan', $parstack, $safeeval, undef, 0);
2447: if (!$colspan) {
2448: $colspan = 1;
2449: }
1.305 foxr 2450:
2451: my $rowspan = &Apache::lonxml::get_param('rowspan', $parstack, $safeeval, undef, 0);
2452: if (!$rowspan) {
2453: $rowspan = 1;
2454: }
2455:
1.303 foxr 2456:
1.305 foxr 2457:
1.320 foxr 2458: for (my $c = 0; $c < $colspan; $c++) {
2459: $Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column+$c] = $rowspan;
2460: for (my $i = 1; $i < $rowspan; $i++) {
2461: $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column+$c] = '^';
2462: if ($i == ($rowspan-1)) {
2463: $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column+$c] = '_';
2464: }
1.306 foxr 2465: }
1.305 foxr 2466: }
1.304 foxr 2467:
1.159 sakharuk 2468: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2469: if (defined $TeXwidth) {
1.357 foxr 2470: for (my $c = 0; $c < $colspan; $c++) {
2471: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2472: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2473: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2474: }
1.159 sakharuk 2475: } else {
1.206 sakharuk 2476: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2477: my $garbage_data=$data;
2478: my $fwidth=0;
2479: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2480: my $current_length=&recalc($1);
2481: $current_length=~/(\d+\.?\d*)/;
2482: if ($fwidth<$1) {$fwidth=$1;}
2483: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2484: }
2485: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2486: my $current_length=$1;
2487: if ($fwidth<$current_length) {$fwidth=$current_length;}
2488: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2489: }
1.357 foxr 2490: for (my $c = 0; $c < $colspan; $c++) {
2491: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2492: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2493: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2494: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2495: }
1.231 sakharuk 2496: } 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)*/) {
2497: my $garbage_data=$data;
2498: my $fwidth=0;
2499: while ($garbage_data=~/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)\s*\}/) {
2500: my $current_length=&recalc($1);
2501: $current_length=~/(\d+\.?\d*)/;
2502: if ($fwidth<$1) {$fwidth=$1;}
2503: $garbage_data=~s/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2504: }
2505: while ($garbage_data=~/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2506: my $current_length=&recalc($1);
2507: $current_length=~/(\d+\.?\d*)/;
2508: if ($fwidth<$1) {$fwidth=$1;}
2509: $garbage_data=~s/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2510: }
1.357 foxr 2511: for (my $c = 0; $c < $colspan; $c++) {
2512: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2513: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2514: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2515: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2516: }
1.468 raeburn 2517: $data=~s/\\\\\s*$//;
2518: } else {
2519: $data=~s/^\s+(\S.*)/$1/;
1.159 sakharuk 2520: $data=~s/(.*\S)\s+$/$1/;
1.166 sakharuk 2521: $data=~s/(\s)+/$1/;
1.206 sakharuk 2522: my ($current_length,$min_length)=(0,0);
1.166 sakharuk 2523: if ($data=~/\\vskip/) {
2524: my $newdata=$data;
2525: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2526: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2527: foreach my $elementdata (@newdata) {
1.206 sakharuk 2528: my $lengthnewdata=2.5*&LATEX_length($elementdata);
1.166 sakharuk 2529: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
1.206 sakharuk 2530: my @words=split(/ /,$elementdata);
2531: foreach my $word (@words) {
2532: my $lengthword=2.5*&LATEX_length($word);
2533: if ($min_length<$lengthword) {$min_length=$lengthword;}
2534: }
1.166 sakharuk 2535: }
2536: } else {
1.206 sakharuk 2537: $current_length=2.5*&LATEX_length($data);
2538: my @words=split(/ /,$data);
2539: foreach my $word (@words) {
1.228 sakharuk 2540: my $lengthword=2*&LATEX_length($word);
1.206 sakharuk 2541: if ($min_length<$lengthword) {$min_length=$lengthword;}
2542: }
1.166 sakharuk 2543: }
1.357 foxr 2544: for (my $c = 0; $c < $colspan; $c++) {
2545: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2546: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2547: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2548: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
2549: }
1.468 raeburn 2550: }
1.159 sakharuk 2551: }
1.302 foxr 2552: # Substitute all of the tables nested in this cell in their appropriate places.
2553:
2554:
2555: my $nested_count = $#{$Apache::londefdef::table[-1]{'include'}}; # This one is constant...
1.468 raeburn 2556: for (my $in=0; $in<=$nested_count; $in++) {
1.301 foxr 2557: my $nested = shift @{$Apache::londefdef::table[-1]{'include'}};
2558: $nested =~ s/\\end\{tabular\}\\strut\\\\/\\end\{tabular\}/;
2559: # $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2560: $data =~ s/\\keephidden\{NEW TABLE ENTRY\}/$nested/;
2561:
2562: }
2563: # Should be be killing off the 'include' elements as they're used up?
1.305 foxr 2564:
1.206 sakharuk 2565: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
1.305 foxr 2566:
1.304 foxr 2567:
2568:
2569:
2570: # the colspan array will indicate how many columns will be spanned by this
2571: # cell..this requires that counter_columns also be adjusted accordingly
2572: # so that the next bunch of text goes in the right cell. Note that since
2573: # counter_columns is incremented in the start_td_tex, we adjust by colspan-1.
2574: #
2575:
2576: $Apache::londefdef::table[-1]{'counter_columns'} += $colspan -1;
2577: for (my $i = 0; $i < ($colspan -1); $i++) {
2578: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },'';
2579: }
1.320 foxr 2580: for (my $r = 0; $r < $rowspan; $r++) {
2581: $Apache::londefdef::table[-1]{'colspan'}[$current_row+$r][$current_column] = $colspan;
2582: # Put empty text in spanned cols.
2583:
2584: }
2585:
1.398 foxr 2586: }
1.304 foxr 2587:
1.301 foxr 2588: return '';
1.159 sakharuk 2589: }
2590:
1.122 albertel 2591: sub end_td {
1.126 sakharuk 2592: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 2593: my $currentstring = '';
1.325 albertel 2594: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 2595: $currentstring = $token->[2];
1.122 albertel 2596: } elsif ($target eq 'tex') {
1.160 sakharuk 2597: $Apache::londefdef::TD_redirection =0;
1.159 sakharuk 2598: &end_td_tex($parstack,$parser,$safeeval);
1.122 albertel 2599: }
2600: return $currentstring;
2601: }
2602:
1.166 sakharuk 2603: #-- <th> tag (end tag optional)
1.122 albertel 2604: sub start_th {
2605: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2606: my $currentstring = '';
1.325 albertel 2607: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 2608: $currentstring = $token->[4];
1.122 albertel 2609: } elsif ($target eq 'tex') {
1.230 sakharuk 2610: $Apache::londefdef::TD_redirection = 1;
2611: &tagg_check('tr','th',$tagstack,$parstack,$parser,$safeeval);
1.468 raeburn 2612: }
1.122 albertel 2613: return $currentstring;
1.468 raeburn 2614: }
2615:
1.230 sakharuk 2616: sub tagg_check {
2617: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
1.468 raeburn 2618: my @ar=@$parstack;
1.230 sakharuk 2619: for (my $i=$#ar-1;$i>=0;$i--) {
2620: if (lc($$tagstack[$i]) eq $good_tag) {
2621: &start_th_tex($parstack,$parser,$safeeval);
2622: last;
2623: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
2624: splice @ar, $i+1;
2625: &end_th_tex(\@ar,$parser,$safeeval);
2626: &start_th_tex($parstack,$parser,$safeeval);
2627: last;
2628: }
2629: }
2630: return '';
2631: }
1.468 raeburn 2632:
1.230 sakharuk 2633: sub start_th_tex {
2634: my ($parstack,$parser,$safeeval) = @_;
1.398 foxr 2635:
2636: my $alignment = &Apache::lonxml::get_param('align', $parstack, $safeeval, undef,1);
2637: my $rowspan = &Apache::lonxml::get_param('rowspan', $parstack, $safeeval, undef, 1);
2638: my $colspan = &Apache::lonxml::get_param('colspan', $parstack, $safeeval, undef, 1);
2639:
2640: my $config = cell_config_hash($alignment, $rowspan, $colspan);
2641: my $table = $Apache::londefdef::table[-1];
2642: $table->add_cell('\textbf{', $config);
2643:
2644: #-------------------------------------------------------------------------------------
2645: #
2646: # Old table code.
2647: #
2648: #--------------------------------------------------------------------------------------
2649:
2650: if (0) {
2651:
2652:
1.230 sakharuk 2653: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2654: if ($alignchar eq '') {
2655: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1];
2656: }
2657: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar;
2658: $Apache::londefdef::table[-1]{'counter_columns'}++;
2659: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2660: if (defined $TeXwidth) {
2661: my $current_length=&recalc($TeXwidth);
2662: $current_length=~/(\d+\.?\d*)/;
2663: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1;
2664: }
1.398 foxr 2665: }
2666:
2667: # Accept xml until the </th> tag.
2668:
1.230 sakharuk 2669: &Apache::lonxml::startredirection();
2670: return '';
2671: }
2672:
2673: sub end_th_tex {
2674: my ($parstack,$parser,$safeeval) = @_;
1.398 foxr 2675:
2676: my $table = $Apache::londefdef::table[-1];
2677: my $text = &Apache::lonxml::endredirection();
2678: $table->append_cell_text($text.'}');
2679:
2680: #-----------------------------------------------------------------------------
2681: # Old table code:
2682: #-----------------------------------------------------------------------------
2683:
2684: if (0) {
1.230 sakharuk 2685: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2686: my $data=&Apache::lonxml::endredirection();
2687: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2688: if (defined $TeXwidth) {
2689: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2690: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2691: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2692: } else {
2693: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
2694: my $garbage_data=$data;
2695: my $fwidth=0;
2696: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2697: my $current_length=&recalc($1);
2698: $current_length=~/(\d+\.?\d*)/;
2699: if ($fwidth<$1) {$fwidth=$1;}
2700: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
2701: }
2702: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) {
2703: my $current_length=$1;
2704: if ($fwidth<$current_length) {$fwidth=$current_length;}
2705: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
2706: }
2707: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2708: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
2709: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2710: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
1.468 raeburn 2711: } else {
2712: $data=~s/^\s+(\S.*)/$1/;
1.230 sakharuk 2713: $data=~s/(.*\S)\s+$/$1/;
2714: $data=~s/(\s)+/$1/;
2715: my ($current_length,$min_length)=(0,0);
2716: if ($data=~/\\vskip/) {
2717: my $newdata=$data;
2718: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
2719: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
2720: foreach my $elementdata (@newdata) {
2721: my $lengthnewdata=2.5*&LATEX_length($elementdata);
2722: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
2723: my @words=split(/ /,$elementdata);
2724: foreach my $word (@words) {
2725: my $lengthword=2.5*&LATEX_length($word);
2726: if ($min_length<$lengthword) {$min_length=$lengthword;}
2727: }
2728: }
2729: } else {
2730: $current_length=2.5*&LATEX_length($data);
2731: my @words=split(/ /,$data);
2732: foreach my $word (@words) {
2733: my $lengthword=2*&LATEX_length($word);
2734: if ($min_length<$lengthword) {$min_length=$lengthword;}
2735: }
2736: }
2737: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2738: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
2739: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
2740: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
1.468 raeburn 2741: }
1.230 sakharuk 2742: }
1.468 raeburn 2743: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
1.230 sakharuk 2744: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2745: }
2746: #make data bold
2747: $data='\textbf{'.$data.'}';
2748: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
1.398 foxr 2749: }
1.230 sakharuk 2750: return'';
2751: }
2752:
1.122 albertel 2753: sub end_th {
1.130 sakharuk 2754: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 2755: my $currentstring = &end_p(); # Close any open <p> in the row.
1.325 albertel 2756: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 2757: $currentstring .= $token->[2];
1.122 albertel 2758: } elsif ($target eq 'tex') {
1.230 sakharuk 2759: $Apache::londefdef::TD_redirection =0;
2760: &end_th_tex($parstack,$parser,$safeeval);
1.122 albertel 2761: }
2762: return $currentstring;
2763: }
1.468 raeburn 2764:
1.181 sakharuk 2765: #-- <img> tag (end tag forbidden)
1.249 foxr 2766: #
2767: # Render the <IMG> tag.
1.468 raeburn 2768: # <IMG> has the following attributes (in addition to the
1.249 foxr 2769: # standard HTML ones:
2770: # TeXwrap - Governs how the tex target will try to wrap text around
2771: # horizontally aligned images.
2772: # TeXwidth - The width of the image when rendered for print (mm).
2773: # TeXheight - The height of the image when rendered for print (mm)
2774: # (Note there seems to also be support for this as a % of page size)
1.468 raeburn 2775: #
1.122 albertel 2776: sub start_img {
1.299 albertel 2777: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
1.122 albertel 2778: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,
2779: undef,1);
1.468 raeburn 2780: if (! $src &&
1.325 albertel 2781: ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex')
1.468 raeburn 2782: ) {
1.299 albertel 2783: my $inside = &Apache::lonxml::get_all_text("/img",$parser,$style);
1.189 albertel 2784: return '';
2785: }
1.453 raeburn 2786: unless ($src =~ m{^data\:image/gif;base64,}) {
2787: &Apache::lonxml::extlink($src);
2788: }
1.122 albertel 2789: my $currentstring = '';
2790: my $scaling = .3;
1.249 foxr 2791:
2792: # Render unto browsers that which are the browser's...
2793:
1.325 albertel 2794: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 2795: my $enc = ('yes' eq
1.417 bisitz 2796: lc(&Apache::lonxml::get_param('encrypturl',$parstack,
2797: $safeeval)));
1.453 raeburn 2798: unless ($src =~ m{^data\:image/gif;base64,}) {
2799: $currentstring.=&Apache::lonenc::encrypt_ref($token,{'src'=>$src},
2800: $enc);
2801: }
1.249 foxr 2802:
1.417 bisitz 2803: # and render unto TeX that which is LaTeX
1.122 albertel 2804: } elsif ($target eq 'tex') {
1.248 foxr 2805: #
2806: # The alignment will require some superstructure to be put around
2807: # the \includegraphics stuff. At present we can only partially
2808: # simulate the alignments offered by html.
2809: #
2810: #
1.468 raeburn 2811: my $align = lc(&Apache::lonxml::get_param('align',
1.248 foxr 2812: $parstack,
2813: $safeeval,
2814: undef,1));
2815: if(!$align) {
1.287 foxr 2816: $align = "bottom"; # This is html's default so it's ours too.
1.248 foxr 2817: }
2818: #
2819: &Apache::lonxml::debug("Alignemnt = $align");
2820: # LaTeX's image/text wrapping is really bad since it wants to
1.468 raeburn 2821: # make figures float.
1.248 foxr 2822: # The user has the optional parameter (applicable only to l/r
2823: # alignment to use the picins/parpic directive to get wrapped text
2824: # this is also imperfect.. that's why we give them a choice...
2825: # so they can't yell at us for our choice.
2826: #
2827: my $latex_rendering = &Apache::lonxml::get_param('TeXwrap',
2828: $parstack,
2829: $safeeval,
2830: undef,0);
1.312 foxr 2831: # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering");
1.248 foxr 2832: if(!$latex_rendering) {
1.312 foxr 2833: $latex_rendering = "texwrap";
2834: }
2835: # using texwrap inside a table does not work. So, if after all of this,
2836: # texwrap is on, we turn it off if we detect we're in a table:
2837: #
2838: if (($latex_rendering eq 'texwrap') && &is_inside_of($tagstack, "table")) {
2839: $latex_rendering = 'parpic';
1.248 foxr 2840: }
1.323 foxr 2841:
1.312 foxr 2842: # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering image file: $src");
1.248 foxr 2843:
1.455 raeburn 2844: #if original bmp/gif/jpg/png/svg file exist do following:
1.266 albertel 2845: my $origsrc=$src;
1.256 albertel 2846: my ($path,$file) = &get_eps_image($src);
1.341 foxr 2847: # &Apache::lonnet::logthis("Image source: $src result: $path $file");
1.122 albertel 2848: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.261 foxr 2849: &Apache::lonxml::debug("path = $path file = $file src = $src");
1.192 sakharuk 2850: if (-e $src) {
1.261 foxr 2851: &Apache::lonxml::debug("$src exists");
1.256 albertel 2852: my ($height_param,$width_param)=
1.266 albertel 2853: &image_size($origsrc,0.3,$parstack,$safeeval);
2854: my $size;
2855: if ($width_param) { $size.='width='.$width_param.' mm,'; }
2856: if ($height_param) { $size.='height='.$height_param.' mm]'; }
1.341 foxr 2857: # Default size if not able to extract that (e.g. eps image).
1.468 raeburn 2858:
1.341 foxr 2859: # &Apache::lonnet::logthis("Size = $size");
1.468 raeburn 2860:
1.266 albertel 2861: $size='['.$size;
1.468 raeburn 2862: $size=~s/,$/]/;
1.344 albertel 2863: $currentstring .= '\graphicspath{{'.$path.'}}'
2864: .'\includegraphics'.$size.'{'.$file.'} ';
1.354 foxr 2865: my $closure;
1.468 raeburn 2866: ($currentstring, $closure) = &align_latex_image($align,
2867: $latex_rendering,
2868: $currentstring,
2869: $width_param,
1.354 foxr 2870: $height_param);
2871: $currentstring .= $closure;
1.469 raeburn 2872:
1.122 albertel 2873: } else {
1.261 foxr 2874: &Apache::lonxml::debug("$src does not exist");
1.122 albertel 2875: #original image file doesn't exist so check the alt attribute
1.468 raeburn 2876: my $alt =
1.122 albertel 2877: &Apache::lonxml::get_param('alt',$parstack,$safeeval,undef,1);
2878: unless ($alt) {
2879: $alt=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
2880: }
2881:
1.256 albertel 2882: if ($alt) { $currentstring .= ' '.$alt.' '; }
1.59 sakharuk 2883: }
1.249 foxr 2884:
2885: # And here's where the semi-quote breaks down: allow the user
2886: # to edit the beast as well by rendering the problem for edit:
1.186 albertel 2887: } elsif ($target eq 'edit') {
1.368 banghart 2888: my $only = join(',',&Apache::loncommon::filecategorytypes('Pictures'));
1.186 albertel 2889: $currentstring .=&Apache::edit::tag_start($target,$token);
2890: $currentstring .=&Apache::edit::text_arg('Image Url:','src',$token,70).
1.459 raeburn 2891: &Apache::edit::browse_or_search('src',undef,'alt',$only,undef,1).
2892: '<br />';
1.186 albertel 2893: $currentstring .=&Apache::edit::text_arg('Description:','alt',$token,70).'<br />';
2894: $currentstring .=&Apache::edit::text_arg('width (pixel):','width',$token,5);
2895: $currentstring .=&Apache::edit::text_arg('height (pixel):','height',$token,5).'<br />';
2896: $currentstring .=&Apache::edit::text_arg('TeXwidth (mm):','TeXwidth',$token,5);
2897: $currentstring .=&Apache::edit::text_arg('TeXheight (mm):','TeXheight',$token,5);
1.234 albertel 2898: $currentstring .=&Apache::edit::select_arg('Alignment:','align',
2899: ['','bottom','middle','top','left','right'],$token,5);
1.249 foxr 2900: $currentstring .=&Apache::edit::select_arg('TeXwrap:', 'TeXwrap',
1.348 albertel 2901: ['', 'none','parbox', 'parpic', 'wrapfigure'], $token, 2);
1.418 www 2902: my $alt= &Apache::lonxml::get_param('alt',$parstack,$safeeval);
2903: my $enc= &Apache::lonxml::get_param('encrypturl',$parstack,$safeeval);
1.468 raeburn 2904:
1.332 www 2905: $currentstring .=&Apache::edit::select_arg('Encrypt URL:','encrypturl',
1.322 albertel 2906: ['no','yes'], $token, 2);
1.418 www 2907: if (($alt=~/\S/) && (lc($enc) eq 'yes')) {
2908: $currentstring.='<br /><span class="LC_warning">'.&mt('Warning: the description "[_1]" will be available, even for encrypted URL',$alt).'</span><br />';
2909: }
1.186 albertel 2910: $currentstring .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1.249 foxr 2911: my $src= &Apache::lonxml::get_param('src',$parstack,$safeeval);
2912: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
2913: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
1.468 raeburn 2914: my $element = &Apache::edit::get_element('src');
1.459 raeburn 2915: my $text;
1.381 www 2916: if ($token->[2]{'src'}=~/\$/) {
1.459 raeburn 2917: $text = &mt('Variable image source');
1.418 www 2918: } elsif ($token->[2]{'src'}=~/\S/) {
1.381 www 2919: $currentstring .= '<img src="'.$src.'" alt="'.$alt.'" ';
2920: if ($width) { $currentstring.=' width="'.$width.'" '; }
2921: if ($height) { $currentstring.=' height="'.$height.'" '; }
1.459 raeburn 2922: $currentstring .= ' id="previewimg_'.$element.'" />';
1.418 www 2923: } else {
1.459 raeburn 2924: $text = &mt("No image source specified");
1.381 www 2925: }
1.459 raeburn 2926: $currentstring .= ' <span id="showimg_'.$element.'">'.$text.'</span>';
1.186 albertel 2927: } elsif ($target eq 'modified') {
1.210 albertel 2928: my ($osrc,$owidth,$oheight)=
2929: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2930: my $ctag=&Apache::edit::get_new_args($token,$parstack,
1.234 albertel 2931: $safeeval,'src','alt','align',
1.249 foxr 2932: 'TeXwidth','TeXheight', 'TeXwrap',
1.322 albertel 2933: 'width','height','encrypturl');
1.210 albertel 2934: my ($nsrc,$nwidth,$nheight)=
2935: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
2936: my $loc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$nsrc);
2937: &image_replication($loc);
2938: my ($iwidth,$iheight);
2939: if (-e $loc) {
2940: my $image = Image::Magick->new;
2941: $image->Read($loc);
2942: ($iwidth, $iheight) = ($image->Get('width'),
2943: $image->Get('height'));
2944: }
2945: if ($osrc ne $nsrc || (!$nwidth && !$nheight)) {
2946: # changed image or no size specified,
1.468 raeburn 2947: # if they didn't explicitly change the
1.210 albertel 2948: # width or height use the ones from the image
2949: if ($iwidth && $iheight) {
2950: if ($owidth == $nwidth || (!$nwidth && !$nheight)) {
2951: $token->[2]{'width'} = $iwidth;$ctag=1;
2952: }
2953: if ($oheight == $nheight || (!$nwidth && !$nheight)) {
2954: $token->[2]{'height'}=$iheight;$ctag=1;
1.186 albertel 2955: }
2956: }
2957: }
1.210 albertel 2958: my ($cwidth,$cheight)=($token->[2]{'width'},$token->[2]{'height'});
2959: # if we don't have a width or height
2960: if ($iwidth && $cwidth && !$cheight) {
2961: $token->[2]{'height'}=int(($cwidth/$iwidth)*$iheight);$ctag=1;
2962: }
2963: if ($iheight && $cheight && !$cwidth) {
2964: $token->[2]{'width'}=int(($cheight/$iheight)*$iwidth);$ctag=1;
2965: }
2966: if ($ctag) {$currentstring=&Apache::edit::rebuild_tag($token);}
1.122 albertel 2967: }
1.261 foxr 2968:
1.122 albertel 2969: return $currentstring;
2970: }
2971:
2972: sub end_img {
2973: my ($target,$token) = @_;
2974: my $currentstring = '';
1.325 albertel 2975: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 2976: $currentstring = $token->[2];
2977: } elsif ($target eq 'tex') {
2978: $currentstring = '';
2979: }
2980: return $currentstring;
2981: }
2982:
1.181 sakharuk 2983: #-- <applet> tag (end tag required)
1.122 albertel 2984: sub start_applet {
2985: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.468 raeburn 2986:
1.122 albertel 2987: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,undef,1);
1.290 albertel 2988: &Apache::lonxml::extlink($code);
1.122 albertel 2989: my $archive=&Apache::lonxml::get_param('archive',$parstack,$safeeval,
2990: undef,1);
1.290 albertel 2991: &Apache::lonxml::extlink($archive);
1.122 albertel 2992: my $currentstring = '';
1.325 albertel 2993: if ($target eq 'web' || $target eq 'webgrade') {
1.434 raeburn 2994: $currentstring = $token->[4];
1.122 albertel 2995: } elsif ($target eq 'tex') {
1.417 bisitz 2996: # Turn off some stuff we can't be inside thank you LaTeX
1.361 foxr 2997:
2998: my $restart_sub = 0;
2999: my $restart_sup = 0;
3000:
3001: # Since <sub> and <sup> are simple tags it's ok to turn off/on
3002: # using the start_ stop_ functions.. those tags only care about
3003: # $target.
3004:
3005: if (&is_inside_of($tagstack, "sub")) {
3006: $restart_sub = 1;
1.468 raeburn 3007: $currentstring .= &end_sub($target, $token, $tagstack,
1.361 foxr 3008: $parstack, $parser, $safeeval);
3009: }
3010: if (&is_inside_of($tagstack, "sup")) {
3011: $restart_sup = 1;
3012: $currentstring .= &end_sup($target, $token, $tagstack,
3013: $parstack, $parser, $safeeval);
3014: }
3015:
3016: # Now process the applet; just replace it with its alt attribute.
3017:
1.177 albertel 3018: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
3019: $safeeval,undef,1);
3020: unless ($alttag) {
3021: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,
3022: undef,1);
3023: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
3024: $code);
1.175 sakharuk 3025: }
1.177 albertel 3026: $currentstring.='\begin{center} \fbox{Java Applet: '.$alttag.
3027: '.}\end{center}';
1.361 foxr 3028:
3029: # Turn stuff back on that we can't be inside of.
3030:
3031: if ($restart_sub) {
3032: $currentstring .= &start_sub($target, $token, $tagstack,
3033: $parstack, $parser, $safeeval);
3034: }
3035: if ($restart_sup) {
3036: $currentstring .= &start_sup($target, $token, $tagstack,
3037: $parstack, $parser, $safeeval);
3038: }
1.468 raeburn 3039: }
1.122 albertel 3040: return $currentstring;
3041: }
3042:
3043: sub end_applet {
3044: my ($target,$token) = @_;
3045: my $currentstring = '';
1.325 albertel 3046: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3047: $currentstring = $token->[2];
3048: } elsif ($target eq 'tex') {
1.468 raeburn 3049: }
1.122 albertel 3050: return $currentstring;
3051: }
3052:
1.181 sakharuk 3053: #-- <embed> tag (end tag optional/required)
1.468 raeburn 3054: sub start_embed {
1.122 albertel 3055: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3056: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
1.290 albertel 3057: &Apache::lonxml::extlink($src);
1.122 albertel 3058: my $currentstring = '';
1.325 albertel 3059: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3060: $currentstring=&Apache::lonenc::encrypt_ref($token,{'src'=>$src});
1.122 albertel 3061: } elsif ($target eq 'tex') {
1.468 raeburn 3062: }
1.122 albertel 3063: return $currentstring;
3064: }
3065:
3066: sub end_embed {
3067: my ($target,$token) = @_;
3068: my $currentstring = '';
1.325 albertel 3069: if ($target eq 'web' || $target eq 'webgrade') {
1.417 bisitz 3070: $currentstring = $token->[2];
3071: } elsif ($target eq 'tex') {
3072: # ./.
3073: }
1.122 albertel 3074: return $currentstring;
3075: }
3076:
1.181 sakharuk 3077: #-- <param> tag (end tag forbidden)
1.122 albertel 3078: sub start_param {
3079: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.437 raeburn 3080: my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval,
3081: undef,1);
3082: if ($name =~/^cabbase$/i) {
1.290 albertel 3083: my $value=&Apache::lonxml::get_param('value',$parstack,
3084: $safeeval,undef,1);
3085: &Apache::lonxml::extlink($value);
1.437 raeburn 3086: } elsif ($name eq 'flashvars') {
3087: if (lc(&Apache::lonxml::get_param('type',$parstack,$safeeval,-2,1))
3088: eq 'application/x-shockwave-flash') {
3089: my $launcher =
3090: &Apache::lonxml::get_param('data',$parstack,$safeeval,-2,1);
3091: if ($launcher) {
3092: &Apache::lonxml::extlink($launcher);
3093: }
3094: my $flashvars=&Apache::lonxml::get_param('value',$parstack,
3095: $safeeval,undef,1);
3096: if ($flashvars ne '') {
3097: foreach my $item (split(/\&/,$flashvars)) {
3098: my ($key,$value)=split(/=/,$item,2);
3099: if ($key eq 'content') {
3100: if ($value ne '') {
3101: my ($dir) = ($launcher =~ m{(.+/)[^/]+$});
3102: &Apache::lonxml::extlink($dir.$value);
3103: }
3104: } elsif ($key eq 'thumb') {
3105: if ($value ne '') {
3106: &Apache::lonxml::extlink($value);
3107: }
3108: }
3109: }
3110: }
3111: }
3112: }
1.290 albertel 3113: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
1.437 raeburn 3114: if ($src ne '') {
3115: &Apache::lonxml::extlink($src);
3116: }
1.122 albertel 3117: my $currentstring = '';
1.325 albertel 3118: if ($target eq 'web' || $target eq 'webgrade') {
1.250 albertel 3119: my %toconvert;
3120: if ($src) { $toconvert{'src'}= $src; }
1.251 albertel 3121: if ($name=~/^cabbase$/i) {
3122: $toconvert{'value'}=&Apache::lonxml::get_param('value',$parstack,
3123: $safeeval,undef,1);
3124: }
1.250 albertel 3125: $currentstring = &Apache::lonenc::encrypt_ref($token,\%toconvert);
1.122 albertel 3126: } elsif ($target eq 'tex') {
1.468 raeburn 3127: }
1.122 albertel 3128: return $currentstring;
3129: }
3130:
3131: sub end_param {
3132: my ($target,$token) = @_;
3133: my $currentstring = '';
1.325 albertel 3134: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3135: $currentstring = $token->[2];
1.122 albertel 3136: } elsif ($target eq 'tex') {
1.468 raeburn 3137: }
1.122 albertel 3138: return $currentstring;
3139: }
3140:
3141: #-- <allow> tag
3142: sub start_allow {
3143: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3144: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
1.290 albertel 3145: &Apache::lonxml::extlink($src);
3146:
1.241 albertel 3147: if ($target eq 'tex') { &image_replication($src); }
1.122 albertel 3148: my $result;
3149: if ($target eq 'edit') {
3150: $result .=&Apache::edit::tag_start($target,$token);
3151: $result .=&Apache::edit::text_arg('File Spec:','src',$token,70);
3152: $result .=&Apache::edit::end_row();#.&Apache::edit::start_spanning_row();
3153: } elsif ($target eq 'modified') {
3154: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
3155: $safeeval,'src');
3156: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
3157: }
3158: return $result;
3159: }
3160:
3161: sub end_allow {
3162: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3163: if ( $target eq 'edit') { return (&Apache::edit::end_table()); }
3164: return '';
3165: }
1.119 www 3166:
1.181 sakharuk 3167: #-- Frames (end tag required)
3168: #-- <frameset>
1.122 albertel 3169: sub start_frameset {
3170: my ($target,$token) = @_;
1.277 foxr 3171: my $currentstring = ''; # Close any pending para.
1.468 raeburn 3172: if ($target eq 'web' || $target eq 'webgrade') {
3173: $currentstring =
1.328 albertel 3174: &Apache::loncommon::start_page($Apache::londefdef::title,
3175: $Apache::londefdef::head,
3176: {'add_entries' => $token->[2],
1.404 bisitz 3177: # 'no_title' => 1,
1.328 albertel 3178: 'force_register' => 1,
3179: 'frameset' => 1,});
3180:
1.122 albertel 3181: }
3182: return $currentstring;
3183: }
3184:
3185: sub end_frameset {
3186: my ($target,$token) = @_;
3187: my $currentstring = '';
1.325 albertel 3188: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3189: $currentstring = $token->[2];
3190: }
3191: return $currentstring;
3192: }
1.162 sakharuk 3193:
1.181 sakharuk 3194: #-- <xmp> (end tag required)
1.162 sakharuk 3195: sub start_xmp {
3196: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3197: my $currentstring = '';
1.325 albertel 3198: if ($target eq 'web' || $target eq 'webgrade') {
1.162 sakharuk 3199: $currentstring .= $token->[4];
3200: } elsif ($target eq 'tex') {
3201: $currentstring .= '\begin{verbatim}';
1.468 raeburn 3202: }
1.162 sakharuk 3203: return $currentstring;
3204: }
3205:
3206: sub end_xmp {
3207: my ($target,$token) = @_;
3208: my $currentstring = '';
1.325 albertel 3209: if ($target eq 'web' || $target eq 'webgrade') {
1.162 sakharuk 3210: $currentstring .= $token->[2];
3211: } elsif ($target eq 'tex') {
3212: $currentstring .= '\end{verbatim}';
3213: }
3214: return $currentstring;
3215: }
3216:
1.181 sakharuk 3217: #-- <pre> (end tag required)
1.122 albertel 3218: sub start_pre {
1.126 sakharuk 3219: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 3220: my $currentstring = &end_p(); # close off pending <p>
1.325 albertel 3221: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3222: $currentstring .= $token->[4];
3223: } elsif ($target eq 'tex') {
1.136 sakharuk 3224: $currentstring .= '\begin{verbatim}';
1.319 albertel 3225: &Apache::lonxml::disable_LaTeX_substitutions();
1.468 raeburn 3226: }
1.122 albertel 3227: return $currentstring;
3228: }
3229:
3230: sub end_pre {
3231: my ($target,$token) = @_;
3232: my $currentstring = '';
1.325 albertel 3233: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3234: $currentstring .= $token->[2];
3235: } elsif ($target eq 'tex') {
1.136 sakharuk 3236: $currentstring .= '\end{verbatim}';
1.319 albertel 3237: &Apache::lonxml::enable_LaTeX_substitutions();
1.122 albertel 3238: }
3239: return $currentstring;
3240: }
3241:
3242: #-- <insert>
3243: sub start_insert {
3244: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3245: my $currentstring = '';
1.325 albertel 3246: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3247: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
3248: $currentstring .= '<b>'.$display.'</b>';;
3249: }
3250: return $currentstring;
3251: }
3252:
3253: sub end_insert {
3254: my ($target,$token) = @_;
3255: my $currentstring = '';
1.325 albertel 3256: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3257: $currentstring .= '';
3258: }
3259: return $currentstring;
3260: }
3261:
3262: #-- <externallink>
3263: sub start_externallink {
3264: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
3265: my $currentstring = '';
1.325 albertel 3266: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3267: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
3268: $currentstring .= '<b>'.$display.'</b>';;
3269: }
3270: return $currentstring;
3271: }
3272:
3273: sub end_externallink {
3274: my ($target,$token) = @_;
3275: my $currentstring = '';
1.325 albertel 3276: if ($target eq 'web' || $target eq 'webgrade') {
1.122 albertel 3277: $currentstring .= '';
3278: }
3279: return $currentstring;
3280: }
3281:
1.470 ! raeburn 3282: #-- <blankspace height="">
1.122 albertel 3283: sub start_blankspace {
3284: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.279 foxr 3285: my $currentstring = &end_p(); # closes off any unclosed <p>
1.122 albertel 3286: if ($target eq 'tex') {
1.470 ! raeburn 3287: my $howmuch = &Apache::lonxml::get_param('height',$parstack,$safeeval,undef,1);
1.122 albertel 3288: $currentstring .= '\vskip '.$howmuch.' ';
3289: }
3290: return $currentstring;
3291: }
3292:
3293: sub end_blankspace {
3294: my ($target,$token) = @_;
3295: my $currentstring = '';
3296: if ($target eq 'tex') {
3297: $currentstring .= '';
3298: }
3299: return $currentstring;
3300: }
3301:
1.181 sakharuk 3302: #-- <abbr> tag (end tag required)
1.122 albertel 3303: sub start_abbr {
3304: my ($target,$token) = @_;
3305: my $currentstring = '';
1.325 albertel 3306: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3307: $currentstring = $token->[4];
3308: }
1.122 albertel 3309: return $currentstring;
3310: }
3311:
3312: sub end_abbr {
3313: my ($target,$token) = @_;
3314: my $currentstring = '';
1.325 albertel 3315: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3316: $currentstring = $token->[2];
3317: }
1.122 albertel 3318: return $currentstring;
3319: }
3320:
1.181 sakharuk 3321: #-- <acronym> tag (end tag required)
1.122 albertel 3322: sub start_acronym {
3323: my ($target,$token) = @_;
3324: my $currentstring = '';
1.325 albertel 3325: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3326: $currentstring = $token->[4];
3327: }
1.122 albertel 3328: return $currentstring;
3329: }
3330:
3331: sub end_acronym {
3332: my ($target,$token) = @_;
3333: my $currentstring = '';
1.325 albertel 3334: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3335: $currentstring = $token->[2];
3336: }
1.122 albertel 3337: return $currentstring;
3338: }
3339:
1.181 sakharuk 3340: #-- <area> tag (end tag forbidden)
1.122 albertel 3341: sub start_area {
3342: my ($target,$token) = @_;
3343: my $currentstring = '';
1.325 albertel 3344: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3345: $currentstring = $token->[4];
3346: }
1.122 albertel 3347: return $currentstring;
3348: }
3349:
3350: sub end_area {
3351: my ($target,$token) = @_;
3352: my $currentstring = '';
1.325 albertel 3353: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3354: $currentstring = $token->[2];
3355: }
1.122 albertel 3356: return $currentstring;
3357: }
3358:
1.181 sakharuk 3359: #-- <base> tag (end tag forbidden)
1.122 albertel 3360: sub start_base {
3361: my ($target,$token) = @_;
3362: my $currentstring = '';
1.325 albertel 3363: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3364: $currentstring = $token->[4];
1.161 sakharuk 3365: }
1.122 albertel 3366: return $currentstring;
3367: }
3368:
3369: sub end_base {
3370: my ($target,$token) = @_;
3371: my $currentstring = '';
1.325 albertel 3372: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3373: $currentstring = $token->[2];
3374: }
1.122 albertel 3375: return $currentstring;
3376: }
3377:
1.181 sakharuk 3378: #-- <bdo> tag (end tag required)
1.122 albertel 3379: sub start_bdo {
3380: my ($target,$token) = @_;
3381: my $currentstring = '';
1.325 albertel 3382: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3383: $currentstring = $token->[4];
3384: }
1.122 albertel 3385: return $currentstring;
3386: }
3387:
3388: sub end_bdo {
3389: my ($target,$token) = @_;
3390: my $currentstring = '';
1.325 albertel 3391: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3392: $currentstring = $token->[2];
3393: }
1.122 albertel 3394: return $currentstring;
3395: }
3396:
1.181 sakharuk 3397: #-- <bgsound> tag (end tag optional)
1.122 albertel 3398: sub start_bgsound {
3399: my ($target,$token) = @_;
3400: my $currentstring = '';
1.325 albertel 3401: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3402: $currentstring = $token->[4];
3403: }
1.122 albertel 3404: return $currentstring;
3405: }
3406:
3407: sub end_bgsound {
3408: my ($target,$token) = @_;
3409: my $currentstring = '';
1.325 albertel 3410: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3411: $currentstring = $token->[2];
3412: }
1.122 albertel 3413: return $currentstring;
3414: }
3415:
1.181 sakharuk 3416: #-- <blink> tag (end tag required)
1.122 albertel 3417: sub start_blink {
3418: my ($target,$token) = @_;
3419: my $currentstring = '';
1.325 albertel 3420: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3421: $currentstring = $token->[4];
3422: }
1.122 albertel 3423: return $currentstring;
3424: }
3425:
3426: sub end_blink {
3427: my ($target,$token) = @_;
3428: my $currentstring = '';
1.325 albertel 3429: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3430: $currentstring = $token->[2];
3431: }
1.122 albertel 3432: return $currentstring;
3433: }
3434:
1.181 sakharuk 3435: #-- <blockquote> tag (end tag required)
1.122 albertel 3436: sub start_blockquote {
3437: my ($target,$token) = @_;
1.279 foxr 3438: my $currentstring = &end_p(); # Close any unclosed <p>
1.325 albertel 3439: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3440: $currentstring .= $token->[4];
3441: }
1.339 foxr 3442: if ($target eq 'tex') {
3443: $currentstring .= '\begin{quote}';
3444: }
1.122 albertel 3445: return $currentstring;
3446: }
3447:
3448: sub end_blockquote {
3449: my ($target,$token) = @_;
3450: my $currentstring = '';
1.325 albertel 3451: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3452: $currentstring = $token->[2];
3453: }
1.339 foxr 3454: if ($target eq 'tex') {
3455: $currentstring = '\end{quote}';
3456: }
1.122 albertel 3457: return $currentstring;
3458: }
3459:
1.181 sakharuk 3460: #-- <button> tag (end tag required)
1.122 albertel 3461: sub start_button {
3462: my ($target,$token) = @_;
3463: my $currentstring = '';
1.325 albertel 3464: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3465: $currentstring = $token->[4];
3466: }
1.122 albertel 3467: return $currentstring;
3468: }
3469:
3470: sub end_button {
3471: my ($target,$token) = @_;
3472: my $currentstring = '';
1.325 albertel 3473: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3474: $currentstring = $token->[2];
3475: }
1.122 albertel 3476: return $currentstring;
3477: }
3478:
1.181 sakharuk 3479: #-- <caption> tag (end tag required)
1.122 albertel 3480: sub start_caption {
3481: my ($target,$token) = @_;
3482: my $currentstring = '';
1.325 albertel 3483: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3484: $currentstring = $token->[4];
1.456 raeburn 3485: }
1.122 albertel 3486: return $currentstring;
3487: }
3488:
3489: sub end_caption {
3490: my ($target,$token) = @_;
3491: my $currentstring = '';
1.325 albertel 3492: if ($target eq 'web' || $target eq 'webgrade') {
1.456 raeburn 3493: $currentstring = $token->[2];
1.468 raeburn 3494: }
1.122 albertel 3495: return $currentstring;
3496: }
3497:
1.181 sakharuk 3498: #-- <col> tag (end tag forbdden)
1.122 albertel 3499: sub start_col {
3500: my ($target,$token) = @_;
3501: my $currentstring = '';
1.325 albertel 3502: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3503: $currentstring = $token->[4];
3504: }
1.122 albertel 3505: return $currentstring;
3506: }
3507:
3508: sub end_col {
3509: my ($target,$token) = @_;
3510: my $currentstring = '';
1.325 albertel 3511: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3512: $currentstring = $token->[2];
3513: }
1.122 albertel 3514: return $currentstring;
3515: }
3516:
1.430 foxr 3517: #-- <colgroup tag (end tag optional)
1.122 albertel 3518: sub start_colgroup {
1.430 foxr 3519: my ($target,$token,$tagstack, $parstack, $parser, $safeeval, $style) = @_;
1.122 albertel 3520: my $currentstring = '';
1.325 albertel 3521: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3522: $currentstring = $token->[4];
3523: }
1.430 foxr 3524: if ($target eq 'tex') {
3525: # TODO: Ensure this tag is in a table:
3526:
3527: # Fetch the attributes and build the hash for the
3528: # call to define_colgroup.
3529:
3530: my $span = &Apache::lonxml::get_param('span', $parstack, $safeeval);
3531: my $halign = &Apache::lonxml::get_param('halign', $parstack, $safeeval);
3532:
3533: my %colgroup_params;
3534: if ($span ne '') {
3535: $colgroup_params{'span'} = $span;
3536: }
3537: if ($halign ne '') {
3538: $colgroup_params{'halign'} = $halign;
3539: }
3540:
3541: my $table = $Apache::londefdef::table[-1];
3542: $table->define_colgroup(\%colgroup_params);
3543:
3544: }
1.122 albertel 3545: return $currentstring;
3546: }
3547:
3548: sub end_colgroup {
3549: my ($target,$token) = @_;
3550: my $currentstring = '';
1.325 albertel 3551: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3552: $currentstring = $token->[2];
3553: }
1.122 albertel 3554: return $currentstring;
3555: }
3556:
1.416 faziophi 3557:
1.181 sakharuk 3558: #-- <del> tag (end tag required)
1.122 albertel 3559: sub start_del {
3560: my ($target,$token) = @_;
3561: my $currentstring = '';
1.325 albertel 3562: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3563: $currentstring = $token->[4];
1.416 faziophi 3564: } elsif ($target eq 'tex') {
3565: &disable_para();
1.468 raeburn 3566: $currentstring .= '\st{';
3567: }
1.122 albertel 3568: return $currentstring;
3569: }
3570:
3571: sub end_del {
3572: my ($target,$token) = @_;
3573: my $currentstring = '';
1.325 albertel 3574: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3575: $currentstring = $token->[2];
1.416 faziophi 3576: } elsif ($target eq 'tex') {
3577: &enable_para();
3578: $currentstring = '}';
1.468 raeburn 3579: }
1.122 albertel 3580: return $currentstring;
3581: }
3582:
1.181 sakharuk 3583: #-- <fieldset> tag (end tag required)
1.122 albertel 3584: sub start_fieldset {
3585: my ($target,$token) = @_;
3586: my $currentstring = '';
1.325 albertel 3587: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3588: $currentstring = $token->[4];
3589: }
1.122 albertel 3590: return $currentstring;
3591: }
3592:
3593: sub end_fieldset {
3594: my ($target,$token) = @_;
3595: my $currentstring = '';
1.325 albertel 3596: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3597: $currentstring = $token->[2];
3598: }
1.122 albertel 3599: return $currentstring;
3600: }
3601:
1.181 sakharuk 3602: #-- <frame> tag (end tag forbidden)
1.122 albertel 3603: sub start_frame {
3604: my ($target,$token) = @_;
3605: my $currentstring = '';
1.325 albertel 3606: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3607: $currentstring = $token->[4];
3608: }
1.122 albertel 3609: return $currentstring;
3610: }
3611:
3612: sub end_frame {
3613: my ($target,$token) = @_;
3614: my $currentstring = '';
1.325 albertel 3615: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3616: $currentstring = $token->[2];
3617: }
1.122 albertel 3618: return $currentstring;
3619: }
3620:
1.181 sakharuk 3621: #-- <iframe> tag (end tag required)
1.122 albertel 3622: sub start_iframe {
3623: my ($target,$token) = @_;
3624: my $currentstring = '';
1.325 albertel 3625: if ($target eq 'web' || $target eq 'webgrade') {
1.445 raeburn 3626: my ($src,$url,$query);
3627: if ($token->[2]->{'src'}) {
3628: $src = $token->[2]->{'src'};
3629: } elsif ($token->[2]->{'SRC'}) {
3630: $src = $token->[2]->{'SRC'};
3631: }
3632: if ($src) {
3633: ($url,$query) = ($src =~ /^([^?]+)\??([^?]*)$/);
3634: if ($query =~ /inhibitmenu=yes/) {
3635: $currentstring = $token->[4];
3636: } else {
3637: my $inhibit;
3638: if ($url =~ m{^[^/.].*\.x?html?$}) {
3639: $inhibit = 1;
3640: } elsif ($url =~ m{^/(uploaded|res)/.*\.x?html?$}) {
3641: $inhibit = 1;
3642: }
3643: if ($inhibit) {
3644: $currentstring = '<iframe ';
3645: foreach my $attrib (@{$token->[3]}) {
3646: if (lc($attrib) eq 'src') {
3647: if ($query) {
3648: $query.='&inhibitmenu=yes';
3649: } else {
3650: $query = 'inhibitmenu=yes';
1.468 raeburn 3651: }
1.445 raeburn 3652: $currentstring .= 'src="'.$url.'?'.$query.'" ';
3653: } else {
3654: $currentstring .= lc($attrib).'="'.$token->[2]->{$attrib}.'" ';
3655: }
3656: }
3657: $currentstring =~ s/\s+$//;
1.449 raeburn 3658: if ($token->[4] =~ m{/>$}) {
3659: $currentstring .= ' />';
3660: } else {
3661: $currentstring .= '>';
3662: }
1.445 raeburn 3663: } else {
3664: $currentstring = $token->[4];
3665: }
1.448 raeburn 3666: }
3667: if (($url !~ m{^https?://}) && ($env{'request.course.id'})) {
3668: my $docuri = &Apache::lonnet::hreflocation('',$env{'request.filename'});
3669: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
3670: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
3671: if ($url =~ m{^([^/]|/uploaded/)}) {
3672: my $cleanhref = &clean_docs_httpref($url,$docuri,$cdom,$cnum);
3673: if ($cleanhref) {
3674: &Apache::lonxml::extlink($cleanhref);
3675: }
3676: } elsif (($url =~ m{/res/$LONCAPA::domain_re/}) && ($docuri =~ m{^\Q/uploaded/$cdom/$cnum/docs/\E})) {
3677: if (!&Apache::lonnet::allowed('bre',$url)) {
3678: if (&Apache::lonnet::is_on_map($url)) {
3679: &Apache::lonxml::extlink($url);
1.447 raeburn 3680: }
3681: }
3682: }
1.445 raeburn 3683: }
3684: } else {
3685: $currentstring = $token->[4];
3686: }
3687: }
1.122 albertel 3688: return $currentstring;
3689: }
3690:
3691: sub end_iframe {
3692: my ($target,$token) = @_;
3693: my $currentstring = '';
1.325 albertel 3694: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3695: $currentstring = $token->[2];
3696: }
1.122 albertel 3697: return $currentstring;
3698: }
3699:
1.181 sakharuk 3700: #-- <ins> tag (end tag required)
1.122 albertel 3701: sub start_ins {
3702: my ($target,$token) = @_;
3703: my $currentstring = '';
1.325 albertel 3704: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3705: $currentstring = $token->[4];
3706: }
1.122 albertel 3707: return $currentstring;
3708: }
3709:
3710: sub end_ins {
3711: my ($target,$token) = @_;
3712: my $currentstring = '';
1.325 albertel 3713: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3714: $currentstring = $token->[2];
3715: }
1.122 albertel 3716: return $currentstring;
3717: }
3718:
1.181 sakharuk 3719: #-- <isindex> tag (end tag forbidden)
1.122 albertel 3720: sub start_isindex {
3721: my ($target,$token) = @_;
3722: my $currentstring = '';
1.325 albertel 3723: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3724: $currentstring = $token->[4];
3725: }
1.122 albertel 3726: return $currentstring;
3727: }
3728:
3729: sub end_isindex {
3730: my ($target,$token) = @_;
3731: my $currentstring = '';
1.325 albertel 3732: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3733: $currentstring = $token->[2];
3734: }
1.122 albertel 3735: return $currentstring;
3736: }
3737:
1.181 sakharuk 3738: #-- <keygen> tag (end tag forbidden)
1.122 albertel 3739: sub start_keygen {
3740: my ($target,$token) = @_;
3741: my $currentstring = '';
1.325 albertel 3742: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3743: $currentstring = $token->[4];
3744: }
1.122 albertel 3745: return $currentstring;
3746: }
3747:
3748: sub end_keygen {
3749: my ($target,$token) = @_;
3750: my $currentstring = '';
1.325 albertel 3751: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3752: $currentstring = $token->[2];
3753: }
1.122 albertel 3754: return $currentstring;
3755: }
3756:
3757: #-- <label> tag
3758: sub start_label {
3759: my ($target,$token) = @_;
3760: my $currentstring = '';
1.325 albertel 3761: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3762: $currentstring = $token->[4];
3763: }
1.122 albertel 3764: return $currentstring;
3765: }
3766:
3767: sub end_label {
3768: my ($target,$token) = @_;
3769: my $currentstring = '';
1.325 albertel 3770: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3771: $currentstring = $token->[2];
3772: }
1.122 albertel 3773: return $currentstring;
3774: }
3775:
1.181 sakharuk 3776: #-- <layer> tag (end tag required)
1.122 albertel 3777: sub start_layer {
3778: my ($target,$token) = @_;
3779: my $currentstring = '';
1.325 albertel 3780: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3781: $currentstring = $token->[4];
3782: }
1.122 albertel 3783: return $currentstring;
3784: }
3785:
3786: sub end_layer {
3787: my ($target,$token) = @_;
3788: my $currentstring = '';
1.325 albertel 3789: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3790: $currentstring = $token->[2];
3791: }
1.122 albertel 3792: return $currentstring;
3793: }
3794:
1.181 sakharuk 3795: #-- <legend> tag (end tag required)
1.122 albertel 3796: sub start_legend {
3797: my ($target,$token) = @_;
3798: my $currentstring = '';
1.325 albertel 3799: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3800: $currentstring = $token->[4];
3801: }
1.122 albertel 3802: return $currentstring;
3803: }
3804:
3805: sub end_legend {
3806: my ($target,$token) = @_;
3807: my $currentstring = '';
1.325 albertel 3808: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3809: $currentstring = $token->[2];
3810: }
1.122 albertel 3811: return $currentstring;
3812: }
3813:
1.181 sakharuk 3814: #-- <link> tag (end tag forbidden)
1.122 albertel 3815: sub start_link {
1.292 albertel 3816: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 3817: my $currentstring = '';
1.324 albertel 3818: if ($target eq 'web' || $target eq 'webgrade') {
1.291 albertel 3819: my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
3820: undef,1);
3821: &Apache::lonxml::extlink($href);
1.468 raeburn 3822: $currentstring = $token->[4];
3823: }
1.122 albertel 3824: return $currentstring;
3825: }
3826:
3827: sub end_link {
3828: my ($target,$token) = @_;
3829: my $currentstring = '';
1.325 albertel 3830: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3831: $currentstring = $token->[2];
3832: }
1.122 albertel 3833: return $currentstring;
3834: }
3835:
1.181 sakharuk 3836: #-- <marquee> tag (end tag optional)
1.122 albertel 3837: sub start_marquee {
3838: my ($target,$token) = @_;
3839: my $currentstring = '';
1.325 albertel 3840: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3841: $currentstring = $token->[4];
3842: }
1.122 albertel 3843: return $currentstring;
3844: }
3845:
3846: sub end_marquee {
3847: my ($target,$token) = @_;
3848: my $currentstring = '';
1.325 albertel 3849: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3850: $currentstring = $token->[2];
3851: }
1.122 albertel 3852: return $currentstring;
3853: }
3854:
1.179 sakharuk 3855: #-- <multicol> tag (end tag required)
3856: sub start_multicol {
1.122 albertel 3857: my ($target,$token) = @_;
1.279 foxr 3858: my $currentstring = &end_p(); # Close any pending <p>
1.325 albertel 3859: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3860: $currentstring .= $token->[4];
3861: }
1.122 albertel 3862: return $currentstring;
3863: }
3864:
1.179 sakharuk 3865: sub end_multicol {
1.122 albertel 3866: my ($target,$token) = @_;
3867: my $currentstring = '';
1.325 albertel 3868: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3869: $currentstring = $token->[2];
3870: }
1.122 albertel 3871: return $currentstring;
3872: }
3873:
1.179 sakharuk 3874: #-- <nobr> tag (end tag required)
1.122 albertel 3875: sub start_nobr {
3876: my ($target,$token) = @_;
3877: my $currentstring = '';
1.325 albertel 3878: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3879: $currentstring = $token->[4];
1.179 sakharuk 3880: } elsif ($target eq 'tex') {
3881: $currentstring='\mbox{';
3882: }
1.122 albertel 3883: return $currentstring;
3884: }
3885:
3886: sub end_nobr {
3887: my ($target,$token) = @_;
3888: my $currentstring = '';
1.325 albertel 3889: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3890: $currentstring = $token->[2];
1.179 sakharuk 3891: } elsif ($target eq 'tex') {
3892: $currentstring='}';
3893: }
1.122 albertel 3894: return $currentstring;
3895: }
3896:
1.179 sakharuk 3897: #-- <noembed> tag (end tag required)
1.122 albertel 3898: sub start_noembed {
3899: my ($target,$token) = @_;
3900: my $currentstring = '';
1.325 albertel 3901: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3902: $currentstring = $token->[4];
3903: }
1.122 albertel 3904: return $currentstring;
3905: }
3906:
3907: sub end_noembed {
3908: my ($target,$token) = @_;
3909: my $currentstring = '';
1.325 albertel 3910: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3911: $currentstring = $token->[2];
3912: }
1.122 albertel 3913: return $currentstring;
3914: }
3915:
1.179 sakharuk 3916: #-- <noframes> tag (end tag required)
1.122 albertel 3917: sub start_noframes {
3918: my ($target,$token) = @_;
3919: my $currentstring = '';
1.325 albertel 3920: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3921: $currentstring = $token->[4];
3922: }
1.122 albertel 3923: return $currentstring;
3924: }
3925:
3926: sub end_noframes {
3927: my ($target,$token) = @_;
3928: my $currentstring = '';
1.325 albertel 3929: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3930: $currentstring = $token->[2];
3931: }
1.122 albertel 3932: return $currentstring;
3933: }
3934:
1.179 sakharuk 3935: #-- <nolayer> tag (end tag required)
1.122 albertel 3936: sub start_nolayer {
3937: my ($target,$token) = @_;
3938: my $currentstring = '';
1.325 albertel 3939: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3940: $currentstring = $token->[4];
3941: }
1.122 albertel 3942: return $currentstring;
3943: }
3944:
3945: sub end_nolayer {
3946: my ($target,$token) = @_;
3947: my $currentstring = '';
1.325 albertel 3948: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3949: $currentstring = $token->[2];
3950: }
1.122 albertel 3951: return $currentstring;
3952: }
3953:
1.179 sakharuk 3954: #-- <noscript> tag (end tag required)
1.122 albertel 3955: sub start_noscript {
3956: my ($target,$token) = @_;
3957: my $currentstring = '';
1.325 albertel 3958: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3959: $currentstring = $token->[4];
3960: }
1.122 albertel 3961: return $currentstring;
3962: }
3963:
3964: sub end_noscript {
3965: my ($target,$token) = @_;
3966: my $currentstring = '';
1.325 albertel 3967: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3968: $currentstring = $token->[2];
3969: }
1.122 albertel 3970: return $currentstring;
3971: }
3972:
1.179 sakharuk 3973: #-- <object> tag (end tag required)
1.122 albertel 3974: sub start_object {
3975: my ($target,$token) = @_;
3976: my $currentstring = '';
1.325 albertel 3977: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3978: $currentstring = $token->[4];
3979: }
1.122 albertel 3980: return $currentstring;
3981: }
3982:
3983: sub end_object {
3984: my ($target,$token) = @_;
3985: my $currentstring = '';
1.325 albertel 3986: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3987: $currentstring = $token->[2];
3988: }
1.122 albertel 3989: return $currentstring;
3990: }
3991:
1.179 sakharuk 3992: #-- <optgroup> tag (end tag required)
1.122 albertel 3993: sub start_optgroup {
3994: my ($target,$token) = @_;
3995: my $currentstring = '';
1.325 albertel 3996: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 3997: $currentstring = $token->[4];
3998: }
1.122 albertel 3999: return $currentstring;
4000: }
4001:
4002: sub end_optgroup {
4003: my ($target,$token) = @_;
4004: my $currentstring = '';
1.325 albertel 4005: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 4006: $currentstring = $token->[2];
4007: }
1.122 albertel 4008: return $currentstring;
4009: }
4010:
1.179 sakharuk 4011: #-- <samp> tag (end tag required)
1.122 albertel 4012: sub start_samp {
4013: my ($target,$token) = @_;
4014: my $currentstring = '';
1.325 albertel 4015: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 4016: $currentstring = $token->[4];
1.179 sakharuk 4017: } elsif ($target eq 'tex') {
4018: $currentstring='\texttt{';
4019: }
1.122 albertel 4020: return $currentstring;
4021: }
4022:
4023: sub end_samp {
4024: my ($target,$token) = @_;
4025: my $currentstring = '';
1.325 albertel 4026: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 4027: $currentstring = $token->[2];
1.179 sakharuk 4028: } elsif ($target eq 'tex') {
4029: $currentstring='}';
4030: }
1.122 albertel 4031: return $currentstring;
4032: }
4033:
4034: #-- <server> tag
4035: sub start_server {
4036: my ($target,$token) = @_;
4037: my $currentstring = '';
1.325 albertel 4038: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 4039: $currentstring = $token->[4];
4040: }
1.122 albertel 4041: return $currentstring;
4042: }
4043:
4044: sub end_server {
4045: my ($target,$token) = @_;
4046: my $currentstring = '';
1.325 albertel 4047: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 4048: $currentstring = $token->[2];
4049: }
1.122 albertel 4050: return $currentstring;
4051: }
4052:
1.179 sakharuk 4053: #-- <spacer> tag (end tag forbidden)
1.122 albertel 4054: sub start_spacer {
4055: my ($target,$token) = @_;
1.279 foxr 4056: my $currentstring = &end_p(); # Close off any open <p> tag.
1.325 albertel 4057: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 4058: $currentstring .= $token->[4];
4059: }
1.122 albertel 4060: return $currentstring;
4061: }
4062:
4063: sub end_spacer {
4064: my ($target,$token) = @_;
4065: my $currentstring = '';
1.325 albertel 4066: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 4067: $currentstring = $token->[2];
4068: }
1.122 albertel 4069: return $currentstring;
4070: }
4071:
1.464 damieng 4072: my @span_end_stack; # for span tex target
4073:
1.179 sakharuk 4074: #-- <span> tag (end tag required)
1.122 albertel 4075: sub start_span {
1.464 damieng 4076: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1.122 albertel 4077: my $currentstring = '';
1.325 albertel 4078: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 4079: $currentstring = $token->[4];
1.464 damieng 4080: } elsif ($target eq 'tex') {
4081: my $endstring = '';
4082: my $family = &get_css_property('font-family',$parstack,$safeeval);
4083: if ($family eq 'monospace') {
4084: $currentstring .= '\texttt{';
4085: $endstring .= '}';
4086: }
4087: my $weight = &get_css_property('font-weight',$parstack,$safeeval);
4088: if ($weight eq 'bold') {
4089: $currentstring .= '\textbf{';
4090: $endstring .= '}';
4091: }
4092: my $style = &get_css_property('font-style',$parstack,$safeeval);
4093: if ($style eq 'italic') {
4094: $currentstring .= '\textit{';
4095: $endstring .= '}';
4096: }
4097: push(@span_end_stack, $endstring);
4098: }
1.122 albertel 4099: return $currentstring;
4100: }
4101:
4102: sub end_span {
4103: my ($target,$token) = @_;
4104: my $currentstring = '';
1.325 albertel 4105: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 4106: $currentstring = $token->[2];
1.464 damieng 4107: } elsif ($target eq 'tex') {
4108: my $endstring = pop @span_end_stack;
4109: $currentstring .= $endstring;
4110: }
1.122 albertel 4111: return $currentstring;
4112: }
4113:
1.179 sakharuk 4114: #-- <tbody> tag (end tag optional)
1.122 albertel 4115: sub start_tbody {
4116: my ($target,$token) = @_;
4117: my $currentstring = '';
1.325 albertel 4118: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 4119: $currentstring = $token->[4];
4120: }
1.430 foxr 4121: if ($target eq 'tex') {
4122: # TODO: Ensure this tag is within a table:
4123:
4124: my $table = $Apache::londefdef::table[-1];
4125: $table->start_body();
4126: }
1.122 albertel 4127: return $currentstring;
4128: }
4129:
4130: sub end_tbody {
4131: my ($target,$token) = @_;
4132: my $currentstring = '';
1.325 albertel 4133: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 4134: $currentstring = $token->[2];
4135: }
1.430 foxr 4136: if($target eq 'tex') {
4137: # TODO: Ensure this tag is within a table:
4138:
4139: my $table = $Apache::londefdef::table[-1];
4140: $table->end_body();
4141: }
1.122 albertel 4142: return $currentstring;
4143: }
4144:
1.166 sakharuk 4145: #-- <tfoot> tag (end tag optional)
1.122 albertel 4146: sub start_tfoot {
4147: my ($target,$token) = @_;
4148: my $currentstring = '';
1.325 albertel 4149: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 4150: $currentstring = $token->[4];
4151: }
1.430 foxr 4152: if ($target eq 'tex') {
4153: # TODO: ensure this is within a table tag.
4154: my $table = $Apache::londefdef::table[-1];
4155: $table->start_foot();
4156: }
1.122 albertel 4157: return $currentstring;
4158: }
4159:
4160: sub end_tfoot {
4161: my ($target,$token) = @_;
4162: my $currentstring = '';
1.325 albertel 4163: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 4164: $currentstring = $token->[2];
4165: }
1.430 foxr 4166: if ($target eq 'tex') {
1.468 raeburn 4167: # TODO: Ensure this is in side a table
1.430 foxr 4168: my $table = $Apache::londefdef::table[-1];
4169: $table->end_foot();
4170: }
1.122 albertel 4171: return $currentstring;
4172: }
4173:
1.166 sakharuk 4174: #-- <thead> tag (end tag optional)
1.122 albertel 4175: sub start_thead {
4176: my ($target,$token) = @_;
4177: my $currentstring = '';
1.325 albertel 4178: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 4179: $currentstring = $token->[4];
4180: }
1.430 foxr 4181: if ($target eq 'tex') {
4182: # Assume we're in a table... TODO: Verify that and ignore tag if not.
4183: my $table = $Apache::londefdef::table[-1];
4184: $table->start_head();
4185: }
1.122 albertel 4186: return $currentstring;
4187: }
1.10 www 4188:
1.122 albertel 4189: sub end_thead {
4190: my ($target,$token) = @_;
4191: my $currentstring = '';
1.325 albertel 4192: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 4193: $currentstring = $token->[2];
4194: }
1.430 foxr 4195: if ($target eq 'tex') {
4196: # TODO: Verify we are in a table and ignore tag if not.
4197:
4198: my $table = $Apache::londefdef::table[-1];
4199: $table->end_head();
4200: }
1.122 albertel 4201: return $currentstring;
4202: }
1.119 www 4203:
1.122 albertel 4204: #-- <var> tag
4205: sub start_var {
1.44 sakharuk 4206: my ($target,$token) = @_;
4207: my $currentstring = '';
1.325 albertel 4208: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 4209: $currentstring = $token->[4];
1.163 sakharuk 4210: } elsif ($target eq 'tex') {
1.468 raeburn 4211: $currentstring = '\textit{';
1.163 sakharuk 4212: }
1.44 sakharuk 4213: return $currentstring;
4214: }
1.10 www 4215:
1.122 albertel 4216: sub end_var {
4217: my ($target,$token) = @_;
1.44 sakharuk 4218: my $currentstring = '';
1.325 albertel 4219: if ($target eq 'web' || $target eq 'webgrade') {
1.163 sakharuk 4220: $currentstring = $token->[2];
4221: } elsif ($target eq 'tex') {
1.468 raeburn 4222: $currentstring = '}';
4223: }
1.44 sakharuk 4224: return $currentstring;
4225: }
1.119 www 4226:
1.163 sakharuk 4227: #-- <wbr> tag (end tag forbidden)
1.122 albertel 4228: sub start_wbr {
4229: my ($target,$token) = @_;
4230: my $currentstring = '';
1.325 albertel 4231: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 4232: $currentstring = $token->[4];
4233: }
1.122 albertel 4234: return $currentstring;
1.98 albertel 4235: }
4236:
1.122 albertel 4237: sub end_wbr {
4238: my ($target,$token) = @_;
4239: my $currentstring = '';
1.325 albertel 4240: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 4241: $currentstring = $token->[2];
4242: }
1.122 albertel 4243: return $currentstring;
1.98 albertel 4244: }
1.134 sakharuk 4245:
4246: #-- <hideweboutput> tag
4247: sub start_hideweboutput {
4248: my ($target,$token) = @_;
1.325 albertel 4249: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 4250: &Apache::lonxml::startredirection();
4251: }
1.134 sakharuk 4252: return '';
4253: }
4254:
4255: sub end_hideweboutput {
4256: my ($target,$token) = @_;
4257: my $currentstring = '';
1.325 albertel 4258: if ($target eq 'web' || $target eq 'webgrade') {
1.468 raeburn 4259: $currentstring = &Apache::lonxml::endredirection();
4260: }
1.134 sakharuk 4261: return '';
4262: }
4263:
1.94 sakharuk 4264:
4265: sub image_replication {
4266: my $src = shift;
1.187 albertel 4267: if (not -e $src) { &Apache::lonnet::repcopy($src); }
1.468 raeburn 4268: #replicates eps or ps
1.187 albertel 4269: my $epssrc = my $pssrc = $src;
4270: $epssrc =~ s/\.(gif|jpg|jpeg|png)$/.eps/i;
4271: $pssrc =~ s/\.(gif|jpg|jpeg|png)$/.ps/i;
4272: if (not -e $epssrc && not -e $pssrc) {
4273: my $result=&Apache::lonnet::repcopy($epssrc);
1.264 raeburn 4274: if ($result ne 'ok') { &Apache::lonnet::repcopy($pssrc); }
1.94 sakharuk 4275: }
4276: return '';
1.195 sakharuk 4277: }
1.397 jms 4278:
4279:
4280:
1.275 foxr 4281: sub resize_image {
4282: my ($height_param, $width_param, $scaling,
4283: $parstack, $safeeval, $depth, $cis) = @_;
4284:
4285: # First apply the scaling...
1.271 foxr 4286:
1.275 foxr 4287: $height_param = $height_param * $scaling;
4288: $width_param = $width_param * $scaling;
1.261 foxr 4289:
1.197 sakharuk 4290: #do we have any specified LaTeX size of the picture?
1.468 raeburn 4291: my $toget='TeXwidth';
4292: if ($cis) {
4293: $toget=lc($toget);
1.261 foxr 4294: }
1.256 albertel 4295: my $TeXwidth = &Apache::lonxml::get_param($toget,$parstack,
4296: $safeeval,$depth,$cis);
4297: $toget='TeXheight'; if ($cis) { $toget=lc($toget); }
4298: my $TeXheight = &Apache::lonxml::get_param($toget,$parstack,
4299: $safeeval,$depth,$cis);
1.197 sakharuk 4300: #do we have any specified web size of the picture?
4301: my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval,
1.256 albertel 4302: $depth,1);
1.468 raeburn 4303: if ($TeXwidth) {
1.252 matthew 4304: my $old_width_param=$width_param;
1.197 sakharuk 4305: if ($TeXwidth=~/(\d+)\s*\%/) {
1.267 albertel 4306: $width_param = $1*$env{'form.textwidth'}/100;
1.468 raeburn 4307: } else {
1.197 sakharuk 4308: $width_param = $TeXwidth;
4309: }
1.266 albertel 4310: if ($TeXheight) {
4311: $height_param = $TeXheight;
4312: } elsif ($old_width_param) {
4313: $height_param=$TeXwidth/$old_width_param*$height_param;
4314: }
1.256 albertel 4315: } elsif ($TeXheight) {
1.248 foxr 4316: $height_param = $TeXheight;
1.266 albertel 4317: if ($height_param) {
4318: $width_param = $TeXheight/$height_param*$width_param;
4319: }
1.256 albertel 4320: } elsif ($width) {
1.252 matthew 4321: my $old_width_param=$width_param;
1.256 albertel 4322: $width_param = $width*$scaling;
1.266 albertel 4323: if ($old_width_param) {
4324: $height_param=$width_param/$old_width_param*$height_param;
4325: }
1.252 matthew 4326: }
1.267 albertel 4327: if ($width_param > $env{'form.textwidth'}) {
1.252 matthew 4328: my $old_width_param=$width_param;
1.267 albertel 4329: $width_param =0.95*$env{'form.textwidth'};
1.266 albertel 4330: if ($old_width_param) {
4331: $height_param=$width_param/$old_width_param*$height_param;
4332: }
1.197 sakharuk 4333: }
1.275 foxr 4334:
4335: return ($height_param, $width_param);
4336: }
4337:
4338: sub image_size {
4339: my ($src,$scaling,$parstack,$safeeval,$depth,$cis)=@_;
4340:
1.468 raeburn 4341: #size of image from gif/jpg/jpeg/png
1.275 foxr 4342: my $ressrc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
4343: if (-e $ressrc) {
4344: $src = $ressrc;
4345: }
4346: my $image = Image::Magick->new;
4347: my $current_figure = $image->Read($src);
4348: my $width_param = $image->Get('width');
4349: my $height_param = $image->Get('height');
4350: &Apache::lonxml::debug("Image magick says: $src : Height = $height_param width = $width_param");
4351: undef($image);
4352:
4353: ($height_param, $width_param) = &resize_image($height_param, $width_param,
1.468 raeburn 4354: $scaling, $parstack, $safeeval,
1.275 foxr 4355: $depth, $cis);
4356:
1.248 foxr 4357: return ($height_param, $width_param);
4358: }
4359:
4360: sub image_width {
4361: my ($height, $width) = &image_size(@_);
4362: return $width;
4363: }
4364: # Not yet 100% sure this is correct in all circumstances..
4365: # due to my uncertainty about mods to image_size.
4366: #
4367: sub image_height {
4368: my ($height, $width) = &image_size(@_);
4369: return $height;
1.197 sakharuk 4370: }
4371:
1.256 albertel 4372: sub get_eps_image {
4373: my ($src)=@_;
1.261 foxr 4374: my $orig_src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1], $src);
1.285 foxr 4375:
4376: # In order to prevent the substitution of the alt text, we need to
4377: # be sure the orig_src file is on system now so:
4378:
4379: if (! -e $orig_src) {
4380: &Apache::lonnet::repcopy($orig_src); # Failure is not completely fatal.
4381: }
1.275 foxr 4382: &Apache::lonxml::debug("get_eps_image: Original image: $orig_src");
1.455 raeburn 4383: my ($spath, $sname, $sext) = &fileparse($src, qr/\.(bmp|gif|png|jpg|jpeg|svg)/i);
4384: $src=~s/\.(bmp|gif|png|jpg|jpeg|svg)$/\.eps/i;
1.256 albertel 4385: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1.275 foxr 4386: &Apache::lonxml::debug("Filelocation gives: $src");
1.256 albertel 4387: if (! -e $src) {
1.261 foxr 4388: &Apache::lonxml::debug("$src does not exist");
1.264 raeburn 4389: if (&Apache::lonnet::repcopy($src) ne 'ok' ) {
1.261 foxr 4390: &Apache::lonxml::debug("Repcopy of $src failed (1)");
1.256 albertel 4391: #if replication failed try to find ps file
4392: $src=~s/\.eps$/\.ps/;
1.261 foxr 4393: &Apache::lonxml::debug("Now looking for $src");
1.270 foxr 4394: #if no ps file try to replicate it.
4395: my $didrepcopy = &Apache::lonnet::repcopy($src);
4396: &Apache::lonxml::debug("repcopy of $src ... $didrepcopy");
4397: if ( (not -e $src) ||
4398: ($didrepcopy ne 'ok')) {
1.261 foxr 4399: &Apache::lonxml::debug("Failed to find or replicate $src");
4400:
1.256 albertel 4401: #if replication failed try to produce eps file dynamically
4402: $src=~s/\.ps$/\.eps/;
1.424 raeburn 4403: if (open(FILE,">>/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat")) {
4404: my $newsrc=$orig_src;
4405: $newsrc =~ s|(.*)/res/|/home/httpd/html/res/|;
4406: &Apache::lonxml::debug("queueing $newsrc for dynamic eps production.");
4407: print FILE ("$newsrc\n");
4408: close(FILE);
4409: }
1.256 albertel 4410: $src=~s|/home/httpd/html/res|/home/httpd/prtspool|;
1.435 www 4411: $src=~s|/home/httpd/html/priv/[^/]+/([^/]*)/|/home/httpd/prtspool/$1/|;
1.283 albertel 4412: if ($sext ne "") { # Put the ext. back in to uniquify.
4413: $src =~ s/\.eps$/$sext.eps/;
4414: }
1.341 foxr 4415:
1.256 albertel 4416: }
1.343 foxr 4417:
1.256 albertel 4418: }
1.341 foxr 4419: } else {
4420: # If the postscript file has spaces in its name,
4421: # LaTeX will gratuitiously vomit. Therefore
4422: # queue such files for copy with " " replaced by "_".
4423: # printout.pm will know them by their .ps or .eps extensions.
4424: my $newsrc = $orig_src;
4425: $newsrc =~ s|(.*)/res/|/home/httpd/html/res/|;
4426: open(FILE,">>/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat");
1.343 foxr 4427: print FILE "$src\n";
1.341 foxr 4428: close FILE;
4429: $src=~s|/home/httpd/html/res|/home/httpd/prtspool|;
1.435 www 4430: $src=~s|/home/httpd/html/priv/[^/]+/([^/]*)/|/home/httpd/prtspool/$1/|;
1.256 albertel 4431: }
4432: my ($path,$file)=($src=~m|(.*)/([^/]*)$|);
1.344 albertel 4433: $path =~ s/ /\_/g;
1.343 foxr 4434: $file =~ s/ /\_/g;
1.261 foxr 4435: &Apache::lonxml::debug("get_eps_image returning: $path / $file<BR />");
1.256 albertel 4436: return ($path.'/',$file);
4437: }
4438:
1.195 sakharuk 4439: sub eps_generation {
1.468 raeburn 4440: my ($src,$file,$width_param) = @_;
1.267 albertel 4441: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat";
1.468 raeburn 4442: if (open(my $tmpfile,">>$filename")) {
1.424 raeburn 4443: print $tmpfile "$src\n";
4444: close($tmpfile);
4445: }
1.195 sakharuk 4446: my $newsrc = $src;
1.390 foxr 4447: $newsrc =~ s/(\.bmp|\.gif|\.jpg|\.jpeg)$/\.eps/i;
1.345 albertel 4448: $newsrc=~s{/home/httpd/html/res}{};
1.435 www 4449: $newsrc=~s{/home/httpd/html/priv/[^/]+/($LONCAPA::username_re)/}{/$1/};
1.345 albertel 4450: $newsrc=~s{/\./}{/};
4451: $newsrc=~s{/([^/]+)\.(ps|eps)}{/};
4452: if ($newsrc=~m{/home/httpd/lonUsers/}) {
4453: $newsrc=~s{/home/httpd/lonUsers}{};
4454: $newsrc=~s{/($LONCAPA::domain_re)/./././}{/$1/};
1.213 sakharuk 4455: }
1.345 albertel 4456: if ($newsrc=~m{/userfiles/}) {
1.239 sakharuk 4457: return ' \graphicspath{{'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4458: } else {
4459: return ' \graphicspath{{/home/httpd/prtspool'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
4460: }
1.197 sakharuk 4461: }
4462:
1.468 raeburn 4463: sub file_path {
1.197 sakharuk 4464: my $src=shift;
1.468 raeburn 4465: my ($file,$path);
1.197 sakharuk 4466: if ($src =~ m!(.*)/([^/]*)$!) {
1.468 raeburn 4467: $file = $2;
4468: $path = $1.'/';
4469: }
1.197 sakharuk 4470: return $file,$path;
1.126 sakharuk 4471: }
1.397 jms 4472:
4473:
1.126 sakharuk 4474: sub recalc {
4475: my $argument = shift;
4476: if (not $argument=~/(mm|cm|in|pc|pt)/) {return $argument.' mm';}
1.132 sakharuk 4477: $argument=~/\s*(\d+\.?\d*)\s*(mm|cm|in|pc|pt)/;
1.126 sakharuk 4478: my $value=$1;
4479: my $units=$2;
4480: if ($units eq 'cm') {
4481: $value*=10;
4482: } elsif ($units eq 'in') {
4483: $value*=25.4;
4484: } elsif ($units eq 'pc') {
4485: $value*=(25.4*12/72.27);
4486: } elsif ($units eq 'pt') {
4487: $value*=(25.4/72.27);
4488: }
4489: return $value.' mm';
1.94 sakharuk 4490: }
1.184 sakharuk 4491:
4492: sub LATEX_length {
4493: my $garbage=shift;
1.206 sakharuk 4494: $garbage=~s/^\s+$//;
1.468 raeburn 4495: $garbage=~s/^\s+(\S.*)/$1/;#space before
4496: $garbage=~s/(.*\S)\s+$/$1/;#space after
1.206 sakharuk 4497: $garbage=~s/(\s)+/$1/;#only one space
1.460 raeburn 4498: $garbage=~s/(\\begin\{([^\}]+)}|\\end\{([^\}]+)})//g;#remove LaTeX \begin{...} and \end{...}
4499: $garbage=~s/(\$\_\{|\$\_|\$\^\{|\$\^|\}\$)//g;#remove $_{,$_,$^{,$^,}$
1.206 sakharuk 4500: $garbage=~s/([^\\])\$/$1/g;#$
1.460 raeburn 4501: $garbage=~s/(\\ensuremath\{\_\{|\\ensuremath\{\_|\\ensuremath\{\^\{|\\ensuremath\{\^|\})//g;#remove \ensuremath{...}
1.206 sakharuk 4502: $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 4503: $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;
4504: $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;
4505: $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 4506: $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;
4507: $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;
1.460 raeburn 4508: $garbage=~s/(\\hat\{([^}]+)}|\\check\{([^}]+)}|\\dot\{([^}]+)}|\\breve\{([^}]+)}|\\acute\{([^}]+)}|\\ddot\{([^}]+)}|\\grave\{([^}]+)}|\\tilde\{([^}]+)}|\\mathring\{([^}]+)}|\\bar\{([^}]+)}|\\vec\{([^}]+)})/$1/g;
1.206 sakharuk 4509: #remove some other LaTeX command
1.468 raeburn 4510: $garbage=~s|\\(\w+)\\|\\|g;
4511: $garbage=~s|\\(\w+)(\s*)|$2|g;
1.206 sakharuk 4512: $garbage=~s|\+|11|g;
1.184 sakharuk 4513: my $value=length($garbage);
4514: return $value;
4515: }
4516:
1.397 jms 4517:
1.353 foxr 4518: sub align_latex_image {
4519: my ($align, $latex_rendering, $image, $width, $height) = @_;
1.354 foxr 4520: my $currentstring; # The 1/2 wrapped image.
4521: my $closure; # The closure of the wrappage.
1.379 albertel 4522:
4523: # if it's none just return it back
4524: if ($latex_rendering eq 'none') {
4525: return ($image,'');
4526: }
4527:
1.353 foxr 4528: # If there's an alignment specification we need to honor it here.
4529: # For the horizontal alignments, we will also honor the
4530: # value of the latex specfication. The default is parbox,
1.468 raeburn 4531: # and that's used for illegal values too.
4532: #
1.353 foxr 4533: # Even though we set a default alignment value, the user
4534: # could have given us an illegal value. In that case we
4535: # just use the default alignment of bottom..
1.415 foxr 4536: $currentstring = '';
1.353 foxr 4537: if ($align eq "top") {
1.354 foxr 4538: $currentstring .= '\raisebox{-'.$height.'mm}{'.$image;
4539: $closure = '}';
1.353 foxr 4540: } elsif (($align eq "center") || ($align eq "middle")) { # Being kind
4541: my $offset = $height/2;
1.354 foxr 4542: $currentstring .= '\raisebox{-'.$offset.'mm}{'.$image;
4543: $closure = '}';
1.468 raeburn 4544: } elsif ($align eq "left") {
4545: if ($latex_rendering eq "parpic") {
1.354 foxr 4546: $currentstring .= '\parpic[l]{'.$image;
4547: $closure = '}';
1.353 foxr 4548: } elsif ($latex_rendering eq "parbox") {
1.354 foxr 4549: $currentstring .= '\begin{minipage}[l]{'.$width.'mm}'
4550: .$image;
4551: $closure = '\end{minipage}';
1.353 foxr 4552: } elsif ($latex_rendering eq "wrapfigure"
4553: || $latex_rendering ne 'none') { # wrapfig render
1.468 raeburn 4554: $currentstring .=
1.353 foxr 4555: '\begin{wrapfigure}{l}{'.$width.'mm}'
1.354 foxr 4556: .'\scalebox{1.0}{'.$image;
4557: $closure = '}\end{wrapfigure}';
1.353 foxr 4558: }
1.468 raeburn 4559: } elsif ($align eq "right") {
1.353 foxr 4560: if ($latex_rendering eq "parpic") {
1.354 foxr 4561: $currentstring .= '\parpic[r]{'.$image;
4562: $closure = '}';
1.353 foxr 4563: } elsif ($latex_rendering eq "parbox") {
1.354 foxr 4564: $currentstring .= '\begin{minipage}[r]{'.$width.'mm}'
4565: .$image;
4566: $closure = '\end{minipage}';
1.353 foxr 4567: } elsif ($latex_rendering eq "wrapfigure"
4568: || $latex_rendering ne 'none') { # wrapfig render
1.468 raeburn 4569: $currentstring .=
1.353 foxr 4570: '\begin{wrapfigure}{r}{'.$width.'mm}'
1.354 foxr 4571: .'\scalebox{1.0}{'.$image;
4572: $closure = '}\end{wrapfigure}';
1.353 foxr 4573: }
4574: } else { # Bottom is also default.
4575: # $currentstring = '\raisebox{'.$height.'mm}{'.$image.'}';
1.354 foxr 4576: $currentstring .= "{$image";
4577: $closure = '}';
1.353 foxr 4578: }
1.354 foxr 4579: return ($currentstring, $closure);
1.353 foxr 4580: }
1.184 sakharuk 4581:
1.397 jms 4582:
1.287 foxr 4583: sub is_inside_of {
4584: my ($tagstack, $tag) = @_;
4585: my @stack = @$tagstack;
4586: for (my $i = ($#stack - 1); $i >= 0; $i--) {
4587: if ($stack[$i] eq $tag) {
4588: return 1;
4589: }
4590: }
4591: return 0;
4592: }
1.184 sakharuk 4593:
1.94 sakharuk 4594:
1.399 foxr 4595: #
4596: # This sub provides the typical LaTeX prefix matter for tex output:
4597: #
1.414 raeburn 4598: sub latex_header {
1.402 foxr 4599: my ($mode) = @_;
1.399 foxr 4600: my $currentstring = '';
4601:
1.468 raeburn 4602: $currentstring .=
1.402 foxr 4603: "\n% &Apache::lonxml::londefdef \n" .
1.399 foxr 4604: '\documentclass[letterpaper,twoside]{article}\raggedbottom';
4605: if (($env{'form.latex_type'}=~'batchmode') ||
1.468 raeburn 4606: (!$env{'request.role.adv'}) ||
4607: ($mode eq 'batchmode')) {$currentstring .='\batchmode';}
1.399 foxr 4608: $currentstring .= '\newcommand{\keephidden}[1]{}'.
4609: '\renewcommand{\deg}{$^{\circ}$}'.
1.461 raeburn 4610: '\usepackage{multirow}'."\n".
4611: '\usepackage{longtable}'."\n".
4612: '\usepackage{textcomp}'."\n".
4613: '\usepackage{makeidx}'."\n".
4614: '\usepackage[dvips]{graphicx}'."\n".
4615: '\usepackage{wrapfig}'."\n".
4616: '\usepackage{picins}'."\n".
1.399 foxr 4617: '\usepackage[T1]{fontenc}'."\n".
4618: '\usepackage{lmodern}'."\n".
4619: '\usepackage[postscript]{ucs}'."\n".
4620: '\usepackage[utf8x]{inputenc}'."\n".
1.461 raeburn 4621: '\usepackage{pifont}'."\n".
1.399 foxr 4622: '\usepackage{latexsym}'."\n".
1.461 raeburn 4623: '\usepackage{epsfig}'."\n".
4624: '\usepackage{xtab}'."\n".
4625: '\usepackage{tabularx}'."\n".
4626: '\usepackage{booktabs}'."\n".
4627: '\usepackage{array}'."\n".
4628: '\usepackage{colortbl}'."\n".
4629: '\usepackage{xcolor}'."\n".
4630: '\usepackage{calc}'."\n".
4631: '\usepackage{amsmath}'."\n".
4632: '\usepackage{soul}'."\n".
4633: '\usepackage{amssymb}'."\n".
4634: '\usepackage{amsfonts}'."\n".
4635: '\usepackage{amsthm}'."\n".
1.462 raeburn 4636: '\usepackage{amscd}'."\n".
4637: '\usepackage{actuarialangle}'."\n";
1.399 foxr 4638: if($env{'form.pdfFormFields'} eq 'yes') {
4639: $currentstring .= '\usepackage{hyperref}'.
4640: '\usepackage{eforms}'.
4641: '\usepackage{tabularx}';
1.468 raeburn 4642: }
4643:
1.399 foxr 4644: $currentstring .= '\newenvironment{choicelist}{\begin{list}{}{\setlength{\rightmargin}{0in}\setlength{\leftmargin}{0.13in}\setlength{\topsep}{0.05in}\setlength{\itemsep}{0.022in}\setlength{\parsep}{0in}\setlength{\belowdisplayskip}{0.04in}\setlength{\abovedisplayskip}{0.05in}\setlength{\abovedisplayshortskip}{-0.04in}\setlength{\belowdisplayshortskip}{0.04in}}}{\end{list}}'.
4645: '\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}}';
1.402 foxr 4646: $currentstring .= '\begin{document}';
1.468 raeburn 4647:
1.399 foxr 4648: return $currentstring;
4649:
4650: }
4651:
1.447 raeburn 4652: sub clean_docs_httpref {
4653: my ($href,$docuri,$cdom,$cnum) = @_;
4654: if ($docuri eq '') {
1.450 raeburn 4655: $docuri = &Apache::lonnet::hreflocation('',$env{'request.filename'});
1.447 raeburn 4656: }
4657: if ($cdom eq '') {
4658: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
4659: }
4660: if ($cnum eq '') {
4661: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
4662: }
4663: my $cleanhref;
1.454 raeburn 4664: if ($docuri =~ m{^(\Q/uploaded/$cdom/$cnum/\E(?:docs|supplemental)/)(.+/)[^/]+$}) {
1.447 raeburn 4665: my $prefix = $1;
4666: my $relpath = $2;
4667: my ($hrefpath,$fname);
4668: if ($href =~ m{^/}) {
4669: if ($href =~ m{^\Q$prefix\E(.+/)([^/]+)$}) {
4670: $hrefpath = $1;
4671: $fname = $2;
4672: } else {
4673: return $cleanhref;
4674: }
4675: } else {
1.468 raeburn 4676: if ($href =~ m{/}) {
1.448 raeburn 4677: (my $path,$fname) = ($href =~ m{^(.*)/([^/]*)$});
4678: $hrefpath = $relpath.$path;
4679: if ($path eq '') {
4680: $hrefpath =~ s{/$}{};
4681: }
4682: } else {
4683: $fname = $href;
4684: $hrefpath = $relpath;
4685: $hrefpath =~ s{/$}{};
4686: }
1.447 raeburn 4687: }
4688: if ($fname ne '') {
4689: my $cleanrelpath;
4690: foreach my $dir (split(/\//,$hrefpath)) {
4691: next if ($dir eq '.');
4692: if ($dir eq '..') {
4693: $cleanrelpath =~ s{([^/]+/)$}{};
4694: } else {
4695: $cleanrelpath .= $dir.'/';
4696: }
4697: }
4698: if ($cleanrelpath ne '') {
1.448 raeburn 4699: $cleanhref = $prefix.$cleanrelpath.$fname;
1.447 raeburn 4700: } else {
1.448 raeburn 4701: $cleanhref = $prefix.$fname;
1.447 raeburn 4702: }
4703: }
4704: }
4705: return $cleanhref;
4706: }
4707:
1.464 damieng 4708: # This is retrieving a CSS property from the style attribute of the current element.
4709: # It is not checking <style> elements or linked stylesheets yet.
4710: sub get_css_property {
4711: my ($property,$parstack,$safeeval) = @_;
4712: my $style=&Apache::lonxml::get_param('style',$parstack,$safeeval,undef,1);
4713: my @style_components=split(/;/,$style);
4714: foreach my $css_pair (@style_components) {
4715: my ($name, $value) = split(/:/, $css_pair);
4716: $name =~ s/^\s+|\s+$//g;
4717: $value =~ s/^\s+|\s+$//g;
4718: if ($name eq $property) {
4719: return $value;
4720: }
4721: }
4722: return undef;
4723: }
4724:
1.397 jms 4725: =pod
4726:
4727: =head1 NAME
4728:
4729: Apache::londefdef.pm
4730:
4731: =head1 SYNOPSIS
4732:
4733: Tags Default Definition Module
4734:
4735: This is part of the LearningOnline Network with CAPA project
4736: described at http://www.lon-capa.org.
4737:
4738:
4739: =head1 NOTABLE SUBROUTINES
4740:
4741: =over
4742:
4743: =item start_hideweboutput()
4744:
4745: =item end_hideweboutput()
4746:
4747: =item image_replication()
4748:
4749: =item resize_image()
4750:
4751: Get correct sizing parameter for an image given
4752: it's initial ht. and wid. This allows sizing of
4753: images that are generated on-the-fly (e.g. gnuplot)
4754: as well as serving as a utility for image_size.
1.468 raeburn 4755:
1.397 jms 4756: Parameter:
4757: height_param
4758: width_param - Initial picture dimensions.
4759: scaling - A scale factor.
1.468 raeburn 4760: parstack, - the current stack of tag attributes
1.397 jms 4761: from the xml parser
4762: safeeval, - pointer to the safespace
4763: depth, - from what level in the stack to look for attributes
4764: (assumes -1 if unspecified)
4765: cis - look for attrubutes case insensitively
4766: (assumes false)
4767:
4768: Returns:
4769: height, width - new dimensions.
4770:
4771: =item image_size()
4772:
4773: =item image_width()
4774:
4775: =item image_height()
4776:
4777: =item get_eps_image()
4778:
4779: =item eps_generation()
4780:
4781: =item file_path()
4782:
4783: =item recalc()
4784:
1.468 raeburn 4785: Converts a measurement in to mm from any of
1.397 jms 4786: the other valid LaTeX units of measure.
1.468 raeburn 4787: If the units of measure are missing from the
1.397 jms 4788: parameter, it is assumed to be in and returned
4789: with mm units of measure
4790:
4791: =item LATEX_length()
4792:
4793: =item align_latex_image()
4794:
1.468 raeburn 4795: Wrap image 'stuff' inside of the LaTeX required to implement
1.397 jms 4796: alignment:
4797: align_tex_image(align, latex_rendering, image)
4798: Where:
4799: align - The HTML alignment specification.
4800: latex_rendering - rendering hint for latex.
4801: image - The LaTeX needed to insert the image itsef.
4802: width,height - dimensions of the image.
4803: Returns:
4804: The 1/2 wrapped image and the stuff required to close the
4805: wrappage. This allows e.g. randomlabel to insert more stuff
4806: into the closure.
4807:
4808:
4809: =item is_inside_of($tagstack, $tag)
1.468 raeburn 4810: This sub returns true if the current state of Xml processing is inside of the tag.
1.397 jms 4811: Parameters:
4812: tagstack - The tagstack from the parser.
4813: tag - The tag (without the <>'s.).
4814: Sample usage:
4815: if (is_inside_of($tagstack "table")) {
4816: I'm in a table....
4817: }
4818:
1.447 raeburn 4819: =item clean_docs_httpref($href,$docuri,$cdom,$cnum)
4820: HTML pages uploaded to a course which contain dependencies either from iframes,
4821: javascript files or objects (FlashPlayerSwf, MediaSrc, XMPSrc, ConfigurationSrc,
4822: and PosterImageSrc) for which dependency is another file uploaded to the same
4823: course.
4824:
1.468 raeburn 4825: Required input:
1.447 raeburn 4826: href - dependency (either a relative URL, or an absolute URL)
4827: Optional inputs:
4828: docuri - URL of HTML page containing the dependency
4829: cdom - Course domain
4830: cnum - CourseID
4831:
4832: Output:
4833: returns an absolute URL constructed from the href provided, and the calling context.
1.454 raeburn 4834: (this will be null, if the URL does not begin: /uploaded/$cdom/$cnum/docs/ or
4835: /uploaded/$cdom/$cnum/supplemental/).
1.397 jms 4836:
4837: =back
4838:
4839: =cut
4840:
4841:
1.1 sakharuk 4842: 1;
4843: __END__
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