1:
2: # The LearningOnline Network with CAPA
3: # Tags Default Definition Module
4: #
5: # $Id: londefdef.pm,v 1.51 2002/04/05 18:11:11 sakharuk Exp $
6: #
7: #
8: # Copyright Michigan State University Board of Trustees
9: #
10: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
11: #
12: # LON-CAPA is free software; you can redistribute it and/or modify
13: # it under the terms of the GNU General Public License as published by
14: # the Free Software Foundation; either version 2 of the License, or
15: # (at your option) any later version.
16: #
17: # LON-CAPA is distributed in the hope that it will be useful,
18: # but WITHOUT ANY WARRANTY; without even the implied warranty of
19: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20: # GNU General Public License for more details.
21: #
22: # You should have received a copy of the GNU General Public License
23: # along with LON-CAPA; if not, write to the Free Software
24: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25: #
26: # /home/httpd/html/adm/gpl.txt
27: #
28: # http://www.lon-capa.org/
29: #
30: # Copyright for TtHfunc and TtMfunc by Ian Hutchinson.
31: # TtHfunc and TtMfunc (the "Code") may be compiled and linked into
32: # binary executable programs or libraries distributed by the
33: # Michigan State University (the "Licensee"), but any binaries so
34: # distributed are hereby licensed only for use in the context
35: # of a program or computational system for which the Licensee is the
36: # primary author or distributor, and which performs substantial
37: # additional tasks beyond the translation of (La)TeX into HTML.
38: # The C source of the Code may not be distributed by the Licensee
39: # to any other parties under any circumstances.
40: #
41: #
42: # last modified 06/26/00 by Alexander Sakharuk
43: # 11/6,11/30,02/01/01,5/4 Gerd Kortemeyer
44: # 01/18 Alex Sakharuk
45:
46: package Apache::londefdef;
47:
48: use strict;
49: use Apache::lonxml;
50:
51: BEGIN {
52:
53: &Apache::lonxml::register('Apache::londefdef',('m','html','head','map','select','option','input','textarea','form','meta','title','body','center','b','strong','dt','h1','h2','h3','h4','h5','h6','cite','i','address','dd','dl','dir','ol','ul','menu','dfn','kbd','tt','code','em','q','p','br','big','small','basefont','font','s','sub','strike','sup','hr','a','li','u','output','param','applet','img','embed','allow','frameset','pre','insert','externallink','table','tr','td'));
54:
55: }
56:
57: #======================= TAG SUBROUTINES =====================
58: #-- <output>
59: sub start_output {
60: my ($target) = @_;
61: if ($target eq 'meta') { $Apache::lonxml::metamode--; }
62: return '';
63: }
64: sub end_output {
65: my ($target) = @_;
66: if ($target eq 'meta') { $Apache::lonxml::metamode++; }
67: return '';
68: }
69: #-- <m> tag
70: sub start_m {
71: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
72: my $currentstring = '';
73: if ($target eq 'web') {
74: my $inside = &Apache::lonxml::get_all_text("/m",$$parser[-1]);
75: $inside ='\\documentstyle{article}'.$inside;
76: &Apache::lonxml::debug("M is starting with:$inside:");
77: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
78: if ($eval eq 'on') {
79: $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
80: #&Apache::lonxml::debug("M is evaulated to:$inside:");
81: }
82: $currentstring = &Apache::lontexconvert::converted(\$inside);
83: if ($Apache::lontexconvert::errorstring) {
84: &Apache::lonxml::warning("tth error: ".
85: $Apache::lontexconvert::errorstring);
86: $Apache::lontexconvert::errorstring='';
87: }
88: #&Apache::lonxml::debug("M is ends with:$currentstring:");
89: } elsif ($target eq 'tex') {
90: $currentstring = "";
91: }
92: return $currentstring;
93: }
94: sub end_m {
95: my ($target,$token) = @_;
96: my $currentstring = '';
97: if ($target eq 'web') {
98: } elsif ($target eq 'tex') {
99: $currentstring = "";
100: } elsif ($target eq 'meta') {
101: }
102: return $currentstring;
103: }
104: #-- <html> tag
105: sub start_html {
106: my ($target,$token) = @_;
107: my $currentstring = '';
108: if ($ENV{'browser.mathml'}) {
109: &tth::ttminit();
110: } else {
111: &tth::tthinit();
112: }
113: if ($target eq 'web') {
114: $currentstring = &Apache::lonxml::xmlbegin().
115: &Apache::lonxml::fontsettings();
116: } elsif ($target eq 'tex') {
117: $currentstring .= '\documentclass[letterpaper]{article}
118: \newcommand{\keephidden}[1]{}
119: \usepackage[dvips]{graphicx}
120: \usepackage{epsfig}';
121: }
122: return $currentstring;
123: }
124: sub end_html {
125: my ($target,$token) = @_;
126: my $currentstring = '';
127: if ($target eq 'web') {
128: $currentstring = &Apache::lonxml::xmlend();
129: }
130: return $currentstring;
131: }
132: #-- <head> tag
133: sub start_head {
134: my ($target,$token) = @_;
135: my $currentstring = '';
136: if ($target eq 'web') {
137: $currentstring = $token->[4];
138: }
139: return $currentstring;
140: }
141: sub end_head {
142: my ($target,$token) = @_;
143: my $currentstring = '';
144: if ($target eq 'web') {
145: $currentstring = &Apache::lonxml::registerurl(undef,$target).
146: $token->[2];
147: }
148: return $currentstring;
149: }
150: #-- <map> tag
151: sub start_map {
152: my ($target,$token) = @_;
153: my $currentstring = '';
154: if ($target eq 'web') {
155: $currentstring = $token->[4];
156: }
157: return $currentstring;
158: }
159: sub end_map {
160: my ($target,$token) = @_;
161: my $currentstring = '';
162: if ($target eq 'web') {
163: $currentstring = $token->[2];
164: }
165: return $currentstring;
166: }
167: #-- <select> tag
168: sub start_select {
169: my ($target,$token) = @_;
170: my $currentstring = '';
171: if ($target eq 'web') {
172: $currentstring = $token->[4];
173: }
174: return $currentstring;
175: }
176: sub end_select {
177: my ($target,$token) = @_;
178: my $currentstring = '';
179: if ($target eq 'web') {
180: $currentstring = $token->[2];
181: }
182: return $currentstring;
183: }
184: #-- <option> tag
185: sub start_option {
186: my ($target,$token) = @_;
187: my $currentstring = '';
188: if ($target eq 'web') {
189: $currentstring = $token->[4];
190: }
191: return $currentstring;
192: }
193: sub end_option {
194: my ($target,$token) = @_;
195: my $currentstring = '';
196: if ($target eq 'web') {
197: $currentstring = $token->[2];
198: }
199: return $currentstring;
200: }
201: #-- <input> tag
202: sub start_input {
203: my ($target,$token) = @_;
204: my $currentstring = '';
205: if ($target eq 'web') {
206: $currentstring = $token->[4];
207: }
208: return $currentstring;
209: }
210: sub end_input {
211: my ($target,$token) = @_;
212: my $currentstring = '';
213: if ($target eq 'web') {
214: $currentstring = $token->[2];
215: }
216: return $currentstring;
217: }
218: #-- <textarea> tag
219: sub start_textarea {
220: my ($target,$token) = @_;
221: my $currentstring = '';
222: if ($target eq 'web') {
223: $currentstring = $token->[4];
224: }
225: return $currentstring;
226: }
227: sub end_textarea {
228: my ($target,$token) = @_;
229: my $currentstring = '';
230: if ($target eq 'web') {
231: $currentstring = $token->[2];
232: }
233: return $currentstring;
234: }
235: #-- <form> tag
236: sub start_form {
237: my ($target,$token) = @_;
238: my $currentstring = '';
239: if ($target eq 'web') {
240: $currentstring = $token->[4];
241: }
242: return $currentstring;
243: }
244: sub end_form {
245: my ($target,$token) = @_;
246: my $currentstring = '';
247: if ($target eq 'web') {
248: $currentstring = $token->[2];
249: }
250: return $currentstring;
251: }
252: #-- <title> tag
253: sub start_title {
254: my ($target,$token) = @_;
255: my $currentstring = '';
256: if ($target eq 'web') {
257: $currentstring = $token->[4];
258: } elsif ($target eq 'tex') {
259: $currentstring .= '\keephidden{'
260: }
261: if ($target eq 'meta') {
262: $currentstring='<title>';
263: &start_output();
264: }
265: return $currentstring;
266: }
267: sub end_title {
268: my ($target,$token) = @_;
269: my $currentstring = '';
270: if ($target eq 'web') {
271: $currentstring = $token->[2];
272: } elsif ($target eq 'tex') {
273: $currentstring .= '}';
274: }
275: if ($target eq 'meta') {
276: &end_output();
277: $currentstring='</title>';
278: }
279: return $currentstring;
280: }
281: #-- <meta> tag
282: sub start_meta {
283: my ($target,$token,$tagstack,$parstack,$parser) = @_;
284: my $currentstring = '';
285: if ($target eq 'web') {
286: my $args='';
287: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
288: if ($args eq '') {
289: &Apache::lonxml::get_all_text("/meta",$$parser[$#$parser]);
290: } else {
291: $currentstring = $token->[4];
292: }
293: }
294: if ($target eq 'meta') {
295: unless ($token->[2]->{'http-equiv'}) {
296: my $name=$token->[2]->{'name'};
297: $name=~tr/A-Z/a-z/;
298: $name=~s/\s/\_/g;
299: if ($name) {
300: $currentstring='<'.$name.'>'.
301: $token->[2]->{'content'}.
302: '</'.$name.'>';
303: }
304: }
305: }
306: return $currentstring;
307: }
308: sub end_meta {
309: my ($target,$token,$tagstack,$parstack,$parser) = @_;
310: my $currentstring = '';
311: if ($target eq 'web') {
312: my $args='';
313: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
314: if ($args ne '') {
315: $currentstring = $token->[4];
316: }
317: }
318: return $currentstring;
319: }
320: #-- <body> tag
321: sub start_body {
322: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
323: # my ($target,$token) = @_;
324: my $currentstring = '';
325: if ($target eq 'web') {
326: if (!$Apache::lonxml::registered) {
327: $currentstring.='<head>'.
328: &Apache::lonxml::registerurl(undef,$target).'</head>';
329: }
330: my $onLoad='';
331: foreach my $key (keys(%{$token->[2]})) {
332: if ($key =~ /^onload$/i) {
333: $onLoad.=$token->[2]->{$key}.';';
334: delete($token->[2]->{$key});
335: }
336: }
337: $token->[2]->{'onLoad'}=$onLoad.&Apache::lonxml::loadevents();
338: my $onUnload='';
339: foreach my $key (keys(%{$token->[2]})) {
340: if ($key =~ /^onunload$/i) {
341: $onUnload.=$token->[2]->{$key}.';';
342: delete($token->[2]->{$key});
343: }
344: }
345: $token->[2]->{'onUnload'}=$onUnload.
346: &Apache::lonxml::unloadevents();
347:
348: $currentstring .= '<'.$token->[1];
349: foreach (keys %{$token->[2]}) {
350: $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
351: }
352: $currentstring.='>';
353: if ($ENV{'request.state'} ne 'published') {
354: $currentstring.=(<<EDITBUTTON);
355: <form method="post">
356: <input type="submit" name="editmode" value="Edit" />
357: </form>
358: EDITBUTTON
359: }
360: } elsif ($target eq 'tex') {
361: $currentstring = '\begin{document}';
362: }
363: return $currentstring;
364: }
365: sub end_body {
366: my ($target,$token) = @_;
367: my $currentstring = '';
368: if ($target eq 'web') {
369: $currentstring = $token->[2];
370: } elsif ($target eq 'tex') {
371: $currentstring = '\end{document}';
372: }
373: return $currentstring;
374: }
375: #-- <center> tag
376: sub start_center {
377: my ($target,$token) = @_;
378: my $currentstring = '';
379: if ($target eq 'web') {
380: $currentstring = $token->[4];
381: } elsif ($target eq 'tex') {
382: $currentstring = '\begin{center}';
383: } elsif ($target eq 'latexsource') {
384: $currentstring = '\begin{center}';
385: }
386: return $currentstring;
387: }
388: sub end_center {
389: my ($target,$token) = @_;
390: my $currentstring = '';
391: if ($target eq 'web') {
392: $currentstring = $token->[2];
393: } elsif ($target eq 'tex') {
394: $currentstring = '\end{center}';
395: } elsif ($target eq 'latexsource') {
396: $currentstring = '\end{center}';
397: }
398: return $currentstring;
399: }
400: #-- <b> tag
401: sub start_b {
402: my ($target,$token) = @_;
403: my $currentstring = '';
404: if ($target eq 'web') {
405: $currentstring = $token->[4];
406: } elsif ($target eq 'tex') {
407: $currentstring = '\textbf{';
408: } elsif ($target eq 'latexsource') {
409: $currentstring = '\textbf{';
410: }
411: return $currentstring;
412: }
413: sub end_b {
414: my ($target,$token) = @_;
415: my $currentstring = '';
416: if ($target eq 'web') {
417: $currentstring = $token->[2];
418: } elsif ($target eq 'tex') {
419: $currentstring = '}';
420:
421: } elsif ($target eq 'latexsource') {
422: $currentstring = '}';
423: }
424: return $currentstring;
425: }
426: #-- <strong> tag
427: sub start_strong {
428: my ($target,$token) = @_;
429: my $currentstring = '';
430: if ($target eq 'web') {
431: $currentstring = $token->[4];
432: } elsif ($target eq 'tex') {
433: $currentstring = '\textbf{';
434: } elsif ($target eq 'latexsource') {
435: $currentstring = '\textbf{';
436: }
437: return $currentstring;
438: }
439: sub end_strong {
440: my ($target,$token) = @_;
441: my $currentstring = '';
442: if ($target eq 'web') {
443:
444: $currentstring = $token->[2];
445: } elsif ($target eq 'tex') {
446: $currentstring = '}';
447: } elsif ($target eq 'latexsource') {
448: $currentstring = '}';
449: }
450: return $currentstring;
451: }
452: #-- <h1> tag
453: sub start_h1 {
454: my ($target,$token) = @_;
455: my $currentstring = '';
456: if ($target eq 'web') {
457: $currentstring .= $token->[4];
458: } elsif ($target eq 'tex') {
459: $currentstring .= '\large{\textbf{';
460: } elsif ($target eq 'meta') {
461: $currentstring='<subject>';
462: &start_output();
463: }
464: return $currentstring;
465: }
466: sub end_h1 {
467: my ($target,$token) = @_;
468: my $currentstring = '';
469: if ($target eq 'web') {
470: $currentstring .= $token->[2];
471: } elsif ($target eq 'tex') {
472: $currentstring .= '}}';
473: } elsif ($target eq 'meta') {
474: &end_output();
475: $currentstring='</subject>';
476: }
477: return $currentstring;
478: }
479: #-- <h2> tag
480: sub start_h2 {
481: my ($target,$token) = @_;
482: my $currentstring = '';
483: if ($target eq 'web') {
484: $currentstring .= $token->[4];
485: } elsif ($target eq 'tex') {
486: $currentstring .= '\large{\textbf{';
487: }
488: return $currentstring;
489: }
490: sub end_h2 {
491: my ($target,$token) = @_;
492: my $currentstring = '';
493: if ($target eq 'web') {
494: $currentstring .= $token->[2];
495: } elsif ($target eq 'tex') {
496: $currentstring .= '}}';
497: }
498: return $currentstring;
499: }
500: #-- <h3> tag
501: sub start_h3 {
502: my ($target,$token) = @_;
503: my $currentstring = '';
504: if ($target eq 'web') {
505: $currentstring .= $token->[4];
506: } elsif ($target eq 'tex') {
507: $currentstring .= '\large{\textbf{';
508: }
509: return $currentstring;
510: }
511: sub end_h3 {
512: my ($target,$token) = @_;
513: my $currentstring = '';
514: if ($target eq 'web') {
515: $currentstring .= $token->[2];
516: } elsif ($target eq 'tex') {
517: $currentstring .= '}}';
518: }
519: return $currentstring;
520: }
521: #-- <h4> tag
522: sub start_h4 {
523: my ($target,$token) = @_;
524: my $currentstring = '';
525: if ($target eq 'web') {
526: $currentstring .= $token->[4];
527: } elsif ($target eq 'tex') {
528: $currentstring .= '\large{\textbf{';
529: }
530: return $currentstring;
531: }
532: sub end_h4 {
533: my ($target,$token) = @_;
534: my $currentstring = '';
535: if ($target eq 'web') {
536: $currentstring .= $token->[2];
537: } elsif ($target eq 'tex') {
538: $currentstring .= '}}';
539: }
540: return $currentstring;
541: }
542: #-- <h5> tag
543: sub start_h5 {
544: my ($target,$token) = @_;
545: my $currentstring = '';
546: if ($target eq 'web') {
547: $currentstring .= $token->[4];
548: } elsif ($target eq 'tex') {
549: $currentstring .= '\large{\textbf{';
550: }
551: return $currentstring;
552: }
553: sub end_h5 {
554: my ($target,$token) = @_;
555: my $currentstring = '';
556: if ($target eq 'web') {
557: $currentstring .= $token->[2];
558: } elsif ($target eq 'tex') {
559: $currentstring .= '}}';
560: }
561: return $currentstring;
562: }
563: #-- <h6> tag
564: sub start_h6 {
565: my ($target,$token) = @_;
566: my $currentstring = '';
567: if ($target eq 'web') {
568: $currentstring .= $token->[4];
569: } elsif ($target eq 'tex') {
570: $currentstring .= '\large{\textbf{';
571: }
572: return $currentstring;
573: }
574: sub end_h6 {
575: my ($target,$token) = @_;
576: my $currentstring = '';
577: if ($target eq 'web') {
578: $currentstring .= $token->[2];
579: } elsif ($target eq 'tex') {
580: $currentstring .= '}}';
581: }
582: return $currentstring;
583: }
584: #--- <cite> tag
585: sub start_cite {
586: my ($target,$token) = @_;
587: my $currentstring = '';
588: if ($target eq 'web') {
589: $currentstring .= $token->[4];
590: } elsif ($target eq 'tex') {
591: $currentstring .= "\\textit{";
592: } elsif ($target eq 'latexsource') {
593: $currentstring .= "\\textit{";
594: }
595: return $currentstring;
596: }
597: sub end_cite {
598: my ($target,$token) = @_;
599: my $currentstring = '';
600: if ($target eq 'web') {
601: $currentstring .= $token->[2];
602: } elsif ($target eq 'tex') {
603: $currentstring .= "}";
604: } elsif ($target eq 'latexsource') {
605: $currentstring .= "}";
606: }
607: return $currentstring;
608: }
609: #-- <i> tag
610: sub start_i {
611: my ($target,$token) = @_;
612: my $currentstring = '';
613: if ($target eq 'web') {
614: $currentstring .= $token->[4];
615: } elsif ($target eq 'tex') {
616: $currentstring .= '\textit{';
617: } elsif ($target eq 'latexsource') {
618: $currentstring .= '\textit{';
619: }
620: return $currentstring;
621: }
622: sub end_i {
623: my ($target,$token) = @_;
624: my $currentstring = '';
625: if ($target eq 'web') {
626: $currentstring .= $token->[2];
627: } elsif ($target eq 'tex') {
628: $currentstring .= '}';
629: } elsif ($target eq 'latexsource') {
630: $currentstring .= '}';
631: }
632: return $currentstring;
633: }
634: #-- <address> tag
635: sub start_address {
636: my ($target,$token) = @_;
637: my $currentstring = '';
638: if ($target eq 'web') {
639: $currentstring .= $token->[4];
640: } elsif ($target eq 'tex') {
641: $currentstring .= "\\textit{";
642: } elsif ($target eq 'latexsource') {
643: $currentstring .= "\\textit{";
644: }
645: return $currentstring;
646: }
647: sub end_address {
648: my ($target,$token) = @_;
649: my $currentstring = '';
650: if ($target eq 'web') {
651: $currentstring .= $token->[2];
652: } elsif ($target eq 'tex') {
653: $currentstring .= "}";
654: } elsif ($target eq 'latexsource') {
655: $currentstring .= "}";
656: }
657: return $currentstring;
658: }
659: #-- <dfn> tag
660: sub start_dfn {
661: my ($target,$token) = @_;
662: my $currentstring = '';
663: if ($target eq 'web') {
664: $currentstring .= $token->[4];
665: } elsif ($target eq 'tex') {
666: $currentstring .= "\\textit{";
667: } elsif ($target eq 'latexsource') {
668: $currentstring .= "\\textit{";
669: }
670: return $currentstring;
671: }
672: sub end_dfn {
673: my ($target,$token) = @_;
674: my $currentstring = '';
675: if ($target eq 'web') {
676: $currentstring .= $token->[2];
677: } elsif ($target eq 'tex') {
678: $currentstring .= "}";
679: } elsif ($target eq 'latexsource') {
680: $currentstring .= "}";
681: }
682: return $currentstring;
683: }
684: #-- <tt> tag
685: sub start_tt {
686: my ($target,$token) = @_;
687: my $currentstring = '';
688: if ($target eq 'web') {
689: $currentstring .= $token->[4];
690: } elsif ($target eq 'tex') {
691: $currentstring .= '\texttt{';
692: } elsif ($target eq 'latexsource') {
693: $currentstring .= '\texttt{';
694: }
695: return $currentstring;
696: }
697: sub end_tt {
698: my ($target,$token) = @_;
699: my $currentstring = '';
700: if ($target eq 'web') {
701: $currentstring .= $token->[2];
702: } elsif ($target eq 'tex') {
703: $currentstring .= '}';
704: } elsif ($target eq 'latexsource') {
705: $currentstring .= '}';
706: }
707: return $currentstring;
708: }
709: #-- <kbd> tag
710: sub start_kbd {
711: my ($target,$token) = @_;
712: my $currentstring = '';
713: if ($target eq 'web') {
714: $currentstring .= $token->[4];
715: } elsif ($target eq 'tex') {
716: $currentstring .= "\\texttt";
717: } elsif ($target eq 'latexsource') {
718: $currentstring .= "\\texttt{";
719: }
720: return $currentstring;
721: }
722: sub end_kbd {
723: my ($target,$token) = @_;
724: my $currentstring = '';
725: if ($target eq 'web') {
726: $currentstring .= $token->[2];
727: } elsif ($target eq 'tex') {
728: $currentstring .= "}";
729: } elsif ($target eq 'latexsource') {
730: $currentstring .= "}";
731: }
732: return $currentstring;
733: }
734: #-- <code> tag
735: sub start_code {
736: my ($target,$token) = @_;
737: my $currentstring = '';
738: if ($target eq 'web') {
739: $currentstring .= $token->[4];
740: } elsif ($target eq 'tex') {
741: $currentstring .= '\texttt{';
742: }
743: return $currentstring;
744: }
745: sub end_code {
746: my ($target,$token) = @_;
747: my $currentstring = '';
748: if ($target eq 'web') {
749: $currentstring .= $token->[2];
750: } elsif ($target eq 'tex') {
751: $currentstring .= '}';
752: }
753: return $currentstring;
754: }
755: #-- <em> tag
756: sub start_em {
757: my ($target,$token) = @_;
758: my $currentstring = '';
759: if ($target eq 'web') {
760: $currentstring .= $token->[4];
761: } elsif ($target eq 'tex') {
762: $currentstring .= '\emph{';
763: } elsif ($target eq 'latexsource') {
764: $currentstring .= '\emph{';
765: }
766: return $currentstring;
767: }
768: sub end_em {
769: my ($target,$token) = @_;
770: my $currentstring = '';
771: if ($target eq 'web') {
772: $currentstring .= $token->[2];
773: } elsif ($target eq 'tex') {
774: $currentstring .= '}';
775: } elsif ($target eq 'latexsource') {
776: $currentstring .= '}';
777: }
778: return $currentstring;
779: }
780: #-- <q> tag
781: sub start_q {
782: my ($target,$token) = @_;
783: my $currentstring = '';
784: if ($target eq 'web') {
785: $currentstring .= $token->[4];
786: } elsif ($target eq 'tex') {
787: $currentstring .= "\\emph{";
788: } elsif ($target eq 'latexsource') {
789: $currentstring .= "\\emph{";
790: }
791: return $currentstring;
792: }
793: sub end_q {
794: my ($target,$token) = @_;
795: my $currentstring = '';
796: if ($target eq 'web') {
797: $currentstring .= $token->[2];
798: } elsif ($target eq 'tex') {
799: $currentstring .= "}";
800: } elsif ($target eq 'latexsource') {
801: $currentstring .= "}";
802: }
803: return $currentstring;
804: }
805: #-- <p> tag
806: sub start_p {
807: my ($target,$token) = @_;
808: my $currentstring = '';
809: if ($target eq 'web') {
810: $currentstring .= $token->[4];
811: } elsif ($target eq 'tex') {
812: $currentstring .= '{\par ';
813: } elsif ($target eq 'latexsource') {
814: $currentstring .= '{\par ';
815: }
816: return $currentstring;
817: }
818: sub end_p {
819: my ($target,$token) = @_;
820: my $currentstring = '';
821: if ($target eq 'web') {
822: $currentstring .= $token->[2];
823: } elsif ($target eq 'tex') {
824: $currentstring .= '}';
825: } elsif ($target eq 'latexsource') {
826: $currentstring .= '}';
827: }
828: return $currentstring;
829: }
830: #-- <br> tag
831: sub start_br {
832: my ($target,$token) = @_;
833: my $currentstring = '';
834: if ($target eq 'web') {
835: $currentstring .= $token->[4];
836: } elsif ($target eq 'tex') {
837: $currentstring .= '\\\\';
838: } elsif ($target eq 'latexsource') {
839: $currentstring .= '\\';
840: }
841: return $currentstring;
842: }
843: sub end_br {
844: my ($target,$token) = @_;
845: my $currentstring = '';
846: if ($target eq 'web') {
847: $currentstring .= $token->[2];
848: }
849: return $currentstring;
850: }
851: #-- <big> tag
852: sub start_big {
853: my ($target,$token) = @_;
854: my $currentstring = '';
855: if ($target eq 'web') {
856: $currentstring .= $token->[4];
857: } elsif ($target eq 'tex') {
858: $currentstring .= '\large{';
859: } elsif ($target eq 'latexsource') {
860: $currentstring .= '{\Large ';
861: }
862: return $currentstring;
863: }
864: sub end_big {
865: my ($target,$token) = @_;
866: my $currentstring = '';
867: if ($target eq 'web') {
868: $currentstring .= $token->[2];
869: } elsif ($target eq 'tex') {
870: $currentstring .= '}';
871: } elsif ($target eq 'latexsource') {
872: $currentstring .= '}';
873: }
874: return $currentstring;
875: }
876: #-- <small> tag
877: sub start_small {
878: my ($target,$token) = @_;
879: my $currentstring = '';
880: if ($target eq 'web') {
881: $currentstring .= $token->[4];
882: } elsif ($target eq 'tex') {
883: $currentstring .= '{\footnotesize ';
884: } elsif ($target eq 'latexsource') {
885: $currentstring .= '{\footnotesize ';
886: }
887: return $currentstring;
888: }
889: sub end_small {
890: my ($target,$token) = @_;
891: my $currentstring = '';
892: if ($target eq 'web') {
893: $currentstring .= $token->[2];
894: } elsif ($target eq 'tex') {
895: $currentstring .= '}';
896: } elsif ($target eq 'latexsource') {
897: $currentstring .= '}';
898: }
899: return $currentstring;
900: }
901: #-- <basefont> tag
902: sub start_basefont {
903: my ($target,$token) = @_;
904: my $currentstring = '';
905: if ($target eq 'web') {
906: $currentstring = $token->[4];
907: }
908: return $currentstring;
909: }
910: sub end_basefont {
911: my ($target,$token) = @_;
912: my $currentstring = '';
913: if ($target eq 'web') {
914: $currentstring = $token->[4];
915: }
916: return $currentstring;
917: }
918: #-- <font> tag
919: sub start_font {
920: my ($target,$token) = @_;
921: my $currentstring = '';
922: if ($target eq 'web') {
923: $currentstring = $token->[4];
924: }
925: return $currentstring;
926: }
927: sub end_font {
928: my ($target,$token) = @_;
929: my $currentstring = '';
930: if ($target eq 'web') {
931: $currentstring = $token->[2];
932: }
933: return $currentstring;
934: }
935: #-- <strike> tag
936: sub start_strike {
937: my ($target,$token) = @_;
938: my $currentstring = '';
939: if ($target eq 'web') {
940: $currentstring .= $token->[4];
941: } elsif ($target eq 'tex') {
942: $currentstring .= "{\\underline ";
943: }
944: return $currentstring;
945: }
946: sub end_strike {
947: my ($target,$token) = @_;
948: my $currentstring = '';
949: if ($target eq 'web') {
950: $currentstring .= $token->[2];
951: } elsif ($target eq 'tex') {
952: $currentstring .= " }";
953: }
954: return $currentstring;
955: }
956: #-- <s> tag
957: sub start_s {
958: my ($target,$token) = @_;
959: my $currentstring = '';
960: if ($target eq 'web') {
961: $currentstring .= $token->[4];
962: } elsif ($target eq 'tex') {
963: $currentstring .= "{\\underline ";
964: }
965: return $currentstring;
966: }
967: sub end_s {
968: my ($target,$token) = @_;
969: my $currentstring = '';
970: if ($target eq 'web') {
971: $currentstring .= $token->[2];
972: } elsif ($target eq 'tex') {
973: $currentstring .= " }";
974: }
975: return $currentstring;
976: }
977: #-- <sub> tag
978: sub start_sub {
979: my ($target,$token) = @_;
980: my $currentstring = '';
981: if ($target eq 'web') {
982: $currentstring .= $token->[4];
983: } elsif ($target eq 'tex') {
984: $currentstring .= "\$_{ ";
985: }
986: return $currentstring;
987: }
988: sub end_sub {
989: my ($target,$token) = @_;
990: my $currentstring = '';
991: if ($target eq 'web') {
992: $currentstring .= $token->[2];
993: } elsif ($target eq 'tex') {
994: $currentstring .= " }\$";
995: }
996: return $currentstring;
997: }
998: #-- <sup> tag
999: sub start_sup {
1000: my ($target,$token) = @_;
1001: my $currentstring = '';
1002: if ($target eq 'web') {
1003: $currentstring .= $token->[4];
1004: } elsif ($target eq 'tex') {
1005: $currentstring .= "\$^{ ";
1006: }
1007: return $currentstring;
1008: }
1009: sub end_sup {
1010: my ($target,$token) = @_;
1011: my $currentstring = '';
1012: if ($target eq 'web') {
1013: $currentstring .= $token->[2];
1014: } elsif ($target eq 'tex') {
1015: $currentstring .= " }\$";
1016: }
1017: return $currentstring;
1018: }
1019: #-- <hr> tag
1020: sub start_hr {
1021: my ($target,$token) = @_;
1022: my $currentstring = '';
1023: if ($target eq 'web') {
1024: $currentstring .= $token->[4];
1025: } elsif ($target eq 'tex') {
1026: $currentstring .= "\\hline ";
1027: }
1028: return $currentstring;
1029: }
1030: sub end_hr {
1031: my ($target,$token) = @_;
1032: my $currentstring = '';
1033: if ($target eq 'web') {
1034: $currentstring .= $token->[2];
1035: } elsif ($target eq 'tex') {
1036: }
1037: return $currentstring;
1038: }
1039: #-- <a> tag
1040: sub start_a {
1041: my ($target,$token) = @_;
1042: my $currentstring = '';
1043: if ($target eq 'web') {
1044: $currentstring .= $token->[4];
1045: } elsif ($target eq 'tex') {
1046: }
1047: return $currentstring;
1048: }
1049: sub end_a {
1050: my ($target,$token,$tagstack,$stackref) = @_;
1051: my $currentstring = '';
1052: if ($target eq 'web') {
1053: $currentstring .= $token->[2];
1054: } elsif ($target eq 'tex') {
1055: my $tempor_var = $stackref->[$#$stackref];
1056: if (index($tempor_var,'name') != -1 ) {
1057: $tempor_var =~ s/name=([^,]*),/$1/g;
1058: # $currentstring .= " \\label{$tempor_var}";
1059: } elsif (index($tempor_var,'href') != -1 ) {
1060: $tempor_var =~ s/href=([^,]*),/$1/g;
1061: $currentstring .= " \\ref{$tempor_var}";
1062: }
1063: }
1064: return $currentstring;
1065: }
1066: #-- <li> tag
1067: sub start_li {
1068: my ($target,$token,$tagstack,$stackref) = @_;
1069: my $currentstring = '';
1070: if ($target eq 'web') {
1071: $currentstring = $token->[4];
1072: } elsif ($target eq 'tex') {
1073: my $tempor_var = $stackref->[$#$stackref];
1074: if (index($tempor_var,'circle') != -1 ) {
1075: $currentstring .= " \\item[o] ";
1076: } elsif (index($tempor_var,'square') != -1 ) {
1077: $currentstring .= " \\item[$\Box$] ";
1078: } elsif ($tempor_var ne '') {
1079: $_ = $tempor_var;
1080: m/my\s*([^=]*)=/;
1081: $currentstring .= " \\item[$1] ";
1082: } else {
1083: $currentstring .= " \\item ";
1084: }
1085: }
1086: return $currentstring;
1087: }
1088: sub end_li {
1089: my ($target,$token) = @_;
1090: my $currentstring = '';
1091: if ($target eq 'web') {
1092: $currentstring = $token->[2];
1093: }
1094: return $currentstring;
1095: }
1096: #-- <u> tag
1097: sub start_u {
1098: my ($target,$token) = @_;
1099: my $currentstring = '';
1100: if ($target eq 'web') {
1101: $currentstring .= $token->[4];
1102: } elsif ($target eq 'tex') {
1103: $currentstring .= "{\\underline ";
1104: }
1105: return $currentstring;
1106: }
1107: sub end_u {
1108: my ($target,$token) = @_;
1109: my $currentstring = '';
1110: if ($target eq 'web') {
1111: $currentstring .= $token->[2];
1112: } elsif ($target eq 'tex') {
1113: $currentstring .= " }";
1114: }
1115: return $currentstring;
1116: }
1117: #-- <ul> tag
1118: sub start_ul {
1119: my ($target,$token) = @_;
1120: my $currentstring = '';
1121: if ($target eq 'web') {
1122: $currentstring = $token->[4];
1123: } elsif ($target eq 'tex') {
1124: $currentstring = '\begin{itemize}';
1125: }
1126: return $currentstring;
1127: }
1128: sub end_ul {
1129: my ($target,$token) = @_;
1130: my $currentstring = '';
1131: if ($target eq 'web') {
1132: $currentstring = $token->[2];
1133: } elsif ($target eq 'tex') {
1134: $currentstring = '\end{itemize}';
1135: }
1136: return $currentstring;
1137: }
1138: #-- <menu> tag
1139: sub start_menu {
1140: my ($target,$token) = @_;
1141: my $currentstring = '';
1142: if ($target eq 'web') {
1143: $currentstring = $token->[4];
1144: } elsif ($target eq 'tex') {
1145: $currentstring = " \\begin{itemize} ";
1146: }
1147: return $currentstring;
1148: }
1149: sub end_menu {
1150: my ($target,$token) = @_;
1151: my $currentstring = '';
1152: if ($target eq 'web') {
1153: $currentstring = $token->[2];
1154: } elsif ($target eq 'tex') {
1155: $currentstring = " \\end{itemize}";
1156: }
1157: return $currentstring;
1158: }
1159: #-- <dir> tag
1160: sub start_dir {
1161: my ($target,$token) = @_;
1162: my $currentstring = '';
1163: if ($target eq 'web') {
1164: $currentstring = $token->[4];
1165: } elsif ($target eq 'tex') {
1166: $currentstring = " \\begin{itemize} ";
1167: }
1168: return $currentstring;
1169: }
1170: sub end_dir {
1171: my ($target,$token) = @_;
1172: my $currentstring = '';
1173: if ($target eq 'web') {
1174: $currentstring = $token->[2];
1175: } elsif ($target eq 'tex') {
1176: $currentstring = " \\end{itemize}";
1177: }
1178: return $currentstring;
1179: }
1180: #-- <ol> tag
1181: sub start_ol {
1182: my ($target,$token) = @_;
1183: my $currentstring = '';
1184: if ($target eq 'web') {
1185: $currentstring = $token->[4];
1186: } elsif ($target eq 'tex') {
1187: $currentstring = '\begin{enumerate}';
1188: }
1189: return $currentstring;
1190: }
1191: sub end_ol {
1192: my ($target,$token) = @_;
1193: my $currentstring = '';
1194: if ($target eq 'web') {
1195: $currentstring = $token->[2];
1196: } elsif ($target eq 'tex') {
1197: $currentstring = '\end{enumerate}';
1198: }
1199: return $currentstring;
1200: }
1201: #-- <dl> tag
1202: sub start_dl {
1203: my ($target,$token) = @_;
1204: my $currentstring = '';
1205: if ($target eq 'web') {
1206: $currentstring = $token->[4];
1207: } elsif ($target eq 'tex') {
1208: $currentstring = '\begin{description}';
1209: }
1210: return $currentstring;
1211: }
1212: sub end_dl {
1213: my ($target,$token) = @_;
1214: my $currentstring = '';
1215: if ($target eq 'web') {
1216: $currentstring = $token->[2];
1217: } elsif ($target eq 'tex') {
1218: $currentstring = '\end{description}';
1219: }
1220: return $currentstring;
1221: }
1222: #-- <dt> tag
1223: sub start_dt {
1224: my ($target,$token) = @_;
1225: my $currentstring = '';
1226: if ($target eq 'web') {
1227: $currentstring = $token->[4];
1228: } elsif ($target eq 'tex') {
1229: $currentstring = '\item[';
1230: }
1231: return $currentstring;
1232: }
1233: sub end_dt {
1234: my ($target,$token) = @_;
1235: my $currentstring = '';
1236: if ($target eq 'web') {
1237: $currentstring = $token->[2];
1238: } elsif ($target eq 'tex') {
1239: $currentstring = ']';
1240: }
1241: return $currentstring;
1242: }
1243: #-- <dd> tag
1244: sub start_dd {
1245: my ($target,$token) = @_;
1246: my $currentstring = '';
1247: if ($target eq 'web') {
1248: $currentstring = $token->[4];
1249: }
1250: return $currentstring;
1251: }
1252: sub end_dd {
1253: my ($target,$token) = @_;
1254: my $currentstring = '';
1255: if ($target eq 'web') {
1256: $currentstring = $token->[2];
1257: }
1258: return $currentstring;
1259: }
1260: #-- <table> tag
1261: sub start_table {
1262: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1263: my $currentstring = '';
1264: if ($target eq 'web') {
1265: $currentstring = $token->[4];
1266: } elsif ($target eq 'tex') {
1267: &Apache::lonxml::startredirection;
1268: my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval);
1269: unless (defined $border) { $border = 0; }
1270: @Apache::londefdef::rows = ();
1271: @Apache::londefdef::columns = ();
1272: $Apache::londefdef::counter_columns = 0;
1273: $Apache::londefdef::hinc = '';
1274: $Apache::londefdef::vinc = '';
1275: $Apache::londefdef::vvinc = '';
1276: if ($border) {
1277: $Apache::londefdef::hinc = '\hline ';
1278: $Apache::londefdef::vinc = '&';
1279: $Apache::londefdef::vvinc = '|';
1280: }
1281: }
1282: return $currentstring;
1283: }
1284: sub end_table {
1285: my ($target,$token) = @_;
1286: my $currentstring = '';
1287: if ($target eq 'web') {
1288: $currentstring = $token->[2];
1289: } elsif ($target eq 'tex') {
1290: my $output=&Apache::lonxml::endredirection;
1291: $output =~ s/<\/td>\s*<td\s*([^>]*)>/$Apache::londefdef::vinc/g;
1292: $output =~ s/<td\s*([^>]*)>//g;
1293: $output =~ s/<\/td>//g;
1294: my $header_of_table = '{'.$Apache::londefdef::vvinc;
1295: my $in;
1296: for ($in=0;$in<$Apache::londefdef::counter_columns;$in++) {
1297: $header_of_table .= $Apache::londefdef::columns[$in].$Apache::londefdef::vvinc;
1298: }
1299: $header_of_table .= '}';
1300: $currentstring .= '\begin{tabular}'.$header_of_table.$output.$Apache::londefdef::hinc.'\end{tabular}';
1301: }
1302: return $currentstring;
1303: }
1304: #-- <tr> tag
1305: sub start_tr {
1306: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1307: my $currentstring = '';
1308: if ($target eq 'web') {
1309: $currentstring = $token->[4];
1310: } elsif ($target eq 'tex') {
1311: if (substr(&Apache::lonxml::get_param('align',$parstack,$safeeval),0,1) ne '') {
1312: push @Apache::londefdef::rows, substr(&Apache::lonxml::get_param('align',$parstack,$safeeval),0,1);
1313: } else {
1314: push @Apache::londefdef::rows, 'c';
1315: }
1316: $currentstring = '\hline ';
1317: $Apache::londefdef::counter_columns = 0;
1318: }
1319: return $currentstring;
1320: }
1321: sub end_tr {
1322: my ($target,$token) = @_;
1323: my $currentstring = '';
1324: if ($target eq 'web') {
1325: $currentstring = $token->[2];
1326: } elsif ($target eq 'tex') {
1327: $currentstring = '\\\\';
1328: }
1329: return $currentstring;
1330: }
1331: #-- <td> tag
1332: sub start_td {
1333: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1334: my $currentstring = '';
1335: if ($target eq 'web') {
1336: $currentstring = $token->[4];
1337: } elsif ($target eq 'tex') {
1338: my $what_to_push = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval),0,1);
1339: if ($what_to_push eq '') {
1340: $what_to_push = substr($Apache::londefdef::rows[0],0,1);
1341: }
1342: push @Apache::londefdef::columns, $what_to_push;
1343: $Apache::londefdef::counter_columns++;
1344: $currentstring = $token->[4];;
1345: }
1346: return $currentstring;
1347: }
1348: sub end_td {
1349: my ($target,$token) = @_;
1350: my $currentstring = '';
1351: if ($target eq 'web') {
1352: $currentstring = $token->[2];
1353: } elsif ($target eq 'tex') {
1354: $currentstring = $token->[2];;
1355: }
1356: return $currentstring;
1357: }
1358: #-- <img> tag
1359: sub start_img {
1360: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1361: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
1362: $token->[2]->{'src'};
1363: my $currentstring = '';
1364:
1365: if ($target eq 'web') {
1366: $currentstring = $token->[4];
1367: } elsif ($target eq 'tex') {
1368: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval);
1369: my $file;
1370: my $path;
1371: if ($src =~ m!(.*)/([^/]*)$!) {
1372: $file = $2;
1373: $path = $1;
1374: if ($path=~m:^/:) {
1375: $path = '/home/httpd/html'.$path;
1376: } elsif ($path =~ /^\./) {
1377: $path = $Apache::lonxml::pwd[-1].'/'.$path;
1378: } else {
1379: #else it is a full url don't print
1380: $path = undef;
1381: }
1382: } else {
1383: $path = $Apache::lonxml::pwd[-1];
1384: $file = $src;
1385: }
1386: $file=~s/(\.gif|\.jpg)$/\.eps/;
1387: if ($path) {
1388: $currentstring = '\graphicspath{{'.$path.'/}}\fbox{\includegraphics{'.$file.'}}';
1389: } else {
1390: $currentstring = 'See the image at \tt{'.$src.'}';
1391: }
1392: }
1393: return $currentstring;
1394: }
1395: sub end_img {
1396: my ($target,$token) = @_;
1397: my $currentstring = '';
1398: if ($target eq 'web') {
1399: $currentstring = $token->[2];
1400: } elsif ($target eq 'tex') {
1401: $currentstring = '';
1402: }
1403: return $currentstring;
1404: }
1405: #-- <applet> tag
1406:
1407: sub start_applet {
1408: my ($target,$token) = @_;
1409: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
1410: $token->[2]->{'code'};
1411: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
1412: $token->[2]->{'archive'};
1413: my $currentstring = '';
1414: if ($target eq 'web') {
1415: $currentstring = $token->[4];
1416: } elsif ($target eq 'tex') {
1417: $currentstring = " \\begin{figure} ";
1418: }
1419: return $currentstring;
1420: }
1421: sub end_applet {
1422: my ($target,$token) = @_;
1423: my $currentstring = '';
1424: if ($target eq 'web') {
1425: $currentstring = $token->[2];
1426: } elsif ($target eq 'tex') {
1427: $currentstring = " \\end{figure}";
1428: }
1429: return $currentstring;
1430: }
1431:
1432: #-- <embed> tag
1433:
1434: sub start_embed {
1435: my ($target,$token) = @_;
1436: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
1437: $token->[2]->{'src'};
1438: my $currentstring = '';
1439: if ($target eq 'web') {
1440: $currentstring = $token->[4];
1441: } elsif ($target eq 'tex') {
1442: $currentstring = " \\begin{figure} ";
1443: }
1444: return $currentstring;
1445: }
1446: sub end_embed {
1447: my ($target,$token) = @_;
1448: my $currentstring = '';
1449: if ($target eq 'web') {
1450: $currentstring = $token->[2];
1451: } elsif ($target eq 'tex') {
1452: $currentstring = " \\end{figure}";
1453: }
1454: return $currentstring;
1455: }
1456:
1457: #-- <param> tag
1458:
1459: sub start_param {
1460: my ($target,$token) = @_;
1461: if ($token->[2]->{'name'} eq 'cabbase') {
1462: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
1463: $token->[2]->{'value'};
1464: }
1465: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
1466: $token->[2]->{'src'};
1467: my $currentstring = '';
1468: if ($target eq 'web') {
1469: $currentstring = $token->[4];
1470: } elsif ($target eq 'tex') {
1471: $currentstring = " \\begin{figure} ";
1472: }
1473: return $currentstring;
1474: }
1475: sub end_param {
1476: my ($target,$token) = @_;
1477: my $currentstring = '';
1478: if ($target eq 'web') {
1479: $currentstring = $token->[2];
1480: } elsif ($target eq 'tex') {
1481: $currentstring = " \\end{figure}";
1482: }
1483: return $currentstring;
1484: }
1485:
1486: #-- <allow> tag
1487:
1488: sub start_allow {
1489: my ($target,$token) = @_;
1490:
1491: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
1492: $token->[2]->{'src'};
1493:
1494: return '';
1495: }
1496: sub end_allow {
1497: return '';
1498: }
1499: #-- Frames
1500: sub start_frameset {
1501: my ($target,$token) = @_;
1502: my $currentstring = '';
1503: if ($target eq 'web') {
1504: if (!$Apache::lonxml::registered) {
1505: $currentstring.='<head>'.
1506: &Apache::lonxml::registerurl(undef,$target).'</head>';
1507: }
1508: $currentstring .= $token->[4];
1509: }
1510: return $currentstring;
1511: }
1512: sub end_frameset {
1513: my ($target,$token) = @_;
1514: my $currentstring = '';
1515: if ($target eq 'web') {
1516: $currentstring = $token->[2];
1517: }
1518: return $currentstring;
1519: }
1520: #-- <pre>
1521: sub start_pre {
1522: my ($target,$token) = @_;
1523: my $currentstring = '';
1524: if ($target eq 'web') {
1525: $currentstring .= $token->[4];
1526: } elsif ($target eq 'tex') {
1527: $currentstring .= '\begin{verbatim}';
1528: }
1529: return $currentstring;
1530: }
1531: sub end_pre {
1532: my ($target,$token) = @_;
1533: my $currentstring = '';
1534: if ($target eq 'web') {
1535: $currentstring .= $token->[2];
1536: } elsif ($target eq 'tex') {
1537: $currentstring .= '\end{verbatim}';
1538: }
1539: return $currentstring;
1540: }
1541: #-- <insert>
1542: sub start_insert {
1543: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1544: my $currentstring = '';
1545: if ($target eq 'web') {
1546: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval);
1547: $currentstring .= '<b>'.$display.'</b>';;
1548: }
1549: return $currentstring;
1550: }
1551: sub end_insert {
1552: my ($target,$token) = @_;
1553: my $currentstring = '';
1554: if ($target eq 'web') {
1555: $currentstring .= '';
1556: }
1557: return $currentstring;
1558: }
1559: #-- <externallink>
1560: sub start_externallink {
1561: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1562: my $currentstring = '';
1563: if ($target eq 'web') {
1564: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval);
1565: $currentstring .= '<b>'.$display.'</b>';;
1566: }
1567: return $currentstring;
1568: }
1569: sub end_externallink {
1570: my ($target,$token) = @_;
1571: my $currentstring = '';
1572: if ($target eq 'web') {
1573: $currentstring .= '';
1574: }
1575: return $currentstring;
1576: }
1577: 1;
1578: __END__
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