1: # The LearningOnline Network with CAPA
2: # Tags Default Definition Module
3: #
4: # $Id: londefdef.pm,v 1.39 2002/01/09 23:11:59 albertel Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
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
32: # distributed are hereby licensed only for use in the context
33: # of a program or computational system for which the Licensee is the
34: # primary author or distributor, and which performs substantial
35: # additional tasks beyond the translation of (La)TeX into HTML.
36: # The C source of the Code may not be distributed by the Licensee
37: # to any other parties under any circumstances.
38: #
39: #
40: # last modified 06/26/00 by Alexander Sakharuk
41: # 11/6,11/30,02/01/01,5/4 Gerd Kortemeyer
42:
43: package Apache::londefdef;
44:
45: use strict;
46: use Apache::lonxml;
47:
48: BEGIN {
49:
50: &Apache::lonxml::register('Apache::londefdef',('m','html','head','map','select','option','input','textarea','form','meta','title','body','center','b','strong','table','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','tr','td','allow','frameset'));
51:
52: }
53:
54: #======================= TAG SUBROUTINES =====================
55: #-- <output>
56: sub start_output {
57: my ($target) = @_;
58: if ($target eq 'meta') { $Apache::lonxml::metamode--; }
59: return '';
60: }
61: sub end_output {
62: my ($target) = @_;
63: if ($target eq 'meta') { $Apache::lonxml::metamode++; }
64: return '';
65: }
66: #-- <m> tag
67: sub start_m {
68: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
69: my $currentstring = '';
70: if ($target eq 'web') {
71: my $inside = &Apache::lonxml::get_all_text("/m",$$parser[-1]);
72: $inside ='\\documentstyle{article}'.$inside;
73: &Apache::lonxml::debug("M is starting with:$inside:");
74: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
75: if ($eval eq 'on') {
76: $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
77: #&Apache::lonxml::debug("M is evaulated to:$inside:");
78: }
79: $currentstring = &Apache::lontexconvert::converted(\$inside);
80: if ($Apache::lontexconvert::errorstring) {
81: &Apache::lonxml::warning("tth error: ".
82: $Apache::lontexconvert::errorstring);
83: $Apache::lontexconvert::errorstring='';
84: }
85: #&Apache::lonxml::debug("M is ends with:$currentstring:");
86: } elsif ($target eq 'tex') {
87: $currentstring = "";
88: }
89: return $currentstring;
90: }
91: sub end_m {
92: my ($target,$token) = @_;
93: my $currentstring = '';
94: if ($target eq 'web') {
95: } elsif ($target eq 'tex') {
96: $currentstring = "";
97: } elsif ($target eq 'meta') {
98: }
99: return $currentstring;
100: }
101: #-- <html> tag
102: sub start_html {
103: my ($target,$token) = @_;
104: my $currentstring = '';
105: if ($ENV{'browser.mathml'}) {
106: &tth::ttminit();
107: } else {
108: &tth::tthinit();
109: }
110: if ($target eq 'web') {
111: $currentstring = &Apache::lonxml::xmlbegin().
112: &Apache::lonxml::fontsettings();
113: } elsif ($target eq 'tex') {
114: $currentstring .= '\documentclass[letterpaper]{article}
115: \setlength{\oddsidemargin}{-40pt}
116: \setlength{\evensidemargin}{-60pt}
117: \setlength{\topmargin}{200pt}
118: \setlength{\textwidth}{4.4in}
119: \setlength{\textheight}{6.8in}
120: \setlength{\parindent}{20pt}
121: \setlength{\marginparwidth}{90pt}
122: \setlength{\textfloatsep}{8pt plus 2.0pt minus 4.0pt}
123: \newcommand{\keephidden}[1]{}';
124: }
125: return $currentstring;
126: }
127: sub end_html {
128: my ($target,$token) = @_;
129: my $currentstring = '';
130: if ($target eq 'web') {
131: $currentstring = &Apache::lonxml::xmlend();
132: }
133: return $currentstring;
134: }
135: #-- <head> tag
136: sub start_head {
137: my ($target,$token) = @_;
138: my $currentstring = '';
139: if ($target eq 'web') {
140: $currentstring = $token->[4];
141: }
142: return $currentstring;
143: }
144: sub end_head {
145: my ($target,$token) = @_;
146: my $currentstring = '';
147: if ($target eq 'web') {
148: $currentstring = &Apache::lonxml::registerurl().
149: $token->[2];
150: }
151: return $currentstring;
152: }
153: #-- <map> tag
154: sub start_map {
155: my ($target,$token) = @_;
156: my $currentstring = '';
157: if ($target eq 'web') {
158: $currentstring = $token->[4];
159: }
160: return $currentstring;
161: }
162: sub end_map {
163: my ($target,$token) = @_;
164: my $currentstring = '';
165: if ($target eq 'web') {
166: $currentstring = $token->[2];
167: }
168: return $currentstring;
169: }
170: #-- <select> tag
171: sub start_select {
172: my ($target,$token) = @_;
173: my $currentstring = '';
174: if ($target eq 'web') {
175: $currentstring = $token->[4];
176: }
177: return $currentstring;
178: }
179: sub end_select {
180: my ($target,$token) = @_;
181: my $currentstring = '';
182: if ($target eq 'web') {
183: $currentstring = $token->[2];
184: }
185: return $currentstring;
186: }
187: #-- <option> tag
188: sub start_option {
189: my ($target,$token) = @_;
190: my $currentstring = '';
191: if ($target eq 'web') {
192: $currentstring = $token->[4];
193: }
194: return $currentstring;
195: }
196: sub end_option {
197: my ($target,$token) = @_;
198: my $currentstring = '';
199: if ($target eq 'web') {
200: $currentstring = $token->[2];
201: }
202: return $currentstring;
203: }
204: #-- <input> tag
205: sub start_input {
206: my ($target,$token) = @_;
207: my $currentstring = '';
208: if ($target eq 'web') {
209: $currentstring = $token->[4];
210: }
211: return $currentstring;
212: }
213: sub end_input {
214: my ($target,$token) = @_;
215: my $currentstring = '';
216: if ($target eq 'web') {
217: $currentstring = $token->[2];
218: }
219: return $currentstring;
220: }
221: #-- <textarea> tag
222: sub start_textarea {
223: my ($target,$token) = @_;
224: my $currentstring = '';
225: if ($target eq 'web') {
226: $currentstring = $token->[4];
227: }
228: return $currentstring;
229: }
230: sub end_textarea {
231: my ($target,$token) = @_;
232: my $currentstring = '';
233: if ($target eq 'web') {
234: $currentstring = $token->[2];
235: }
236: return $currentstring;
237: }
238: #-- <form> tag
239: sub start_form {
240: my ($target,$token) = @_;
241: my $currentstring = '';
242: if ($target eq 'web') {
243: $currentstring = $token->[4];
244: }
245: return $currentstring;
246: }
247: sub end_form {
248: my ($target,$token) = @_;
249: my $currentstring = '';
250: if ($target eq 'web') {
251: $currentstring = $token->[2];
252: }
253: return $currentstring;
254: }
255: #-- <title> tag
256: sub start_title {
257: my ($target,$token) = @_;
258: my $currentstring = '';
259: if ($target eq 'web') {
260: $currentstring = $token->[4];
261: } elsif ($target eq 'tex') {
262: $currentstring .= '\keephidden{'
263: }
264: if ($target eq 'meta') {
265: $currentstring='<title>';
266: &start_output();
267: }
268: return $currentstring;
269: }
270: sub end_title {
271: my ($target,$token) = @_;
272: my $currentstring = '';
273: if ($target eq 'web') {
274: $currentstring = $token->[2];
275: } elsif ($target eq 'tex') {
276: $currentstring .= '}';
277: }
278: if ($target eq 'meta') {
279: &end_output();
280: $currentstring='</title>';
281: }
282: return $currentstring;
283: }
284: #-- <meta> tag
285: sub start_meta {
286: my ($target,$token,$tagstack,$parstack,$parser) = @_;
287: my $currentstring = '';
288: if ($target eq 'web') {
289: my $args='';
290: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
291: if ($args eq '') {
292: &Apache::lonxml::get_all_text("/meta",$$parser[$#$parser]);
293: } else {
294: $currentstring = $token->[4];
295: }
296: }
297: if ($target eq 'meta') {
298: unless ($token->[2]->{'http-equiv'}) {
299: my $name=$token->[2]->{'name'};
300: $name=~tr/A-Z/a-z/;
301: $name=~s/\s/\_/g;
302: if ($name) {
303: $currentstring='<'.$name.'>'.
304: $token->[2]->{'content'}.
305: '</'.$name.'>';
306: }
307: }
308: }
309: return $currentstring;
310: }
311: sub end_meta {
312: my ($target,$token,$tagstack,$parstack,$parser) = @_;
313: my $currentstring = '';
314: if ($target eq 'web') {
315: my $args='';
316: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
317: if ($args ne '') {
318: $currentstring = $token->[4];
319: }
320: }
321: return $currentstring;
322: }
323: #-- <body> tag
324: sub start_body {
325: my ($target,$token) = @_;
326: my $currentstring = '';
327: if ($target eq 'web') {
328: if (!$Apache::lonxml::registered) {
329: $currentstring.='<head>'.&Apache::lonxml::registerurl().'</head>';
330: }
331: my $onLoad='';
332: foreach my $key (keys(%{$token->[2]})) {
333: if ($key =~ /^onload$/i) {
334: $onLoad.=$token->[2]->{$key}.';';
335: delete($token->[2]->{$key});
336: }
337: }
338: $token->[2]->{'onLoad'}=$onLoad.&Apache::lonxml::loadevents();
339: my $onUnload='';
340: foreach my $key (keys(%{$token->[2]})) {
341: if ($key =~ /^onunload$/i) {
342: $onUnload.=$token->[2]->{$key}.';';
343: delete($token->[2]->{$key});
344: }
345: }
346: $token->[2]->{'onUnload'}=$onUnload.
347: &Apache::lonxml::unloadevents();
348:
349: $currentstring .= '<'.$token->[1];
350: foreach (keys %{$token->[2]}) {
351: $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
352: }
353: $currentstring.='>';
354: } elsif ($target eq 'tex') {
355: $currentstring = '\begin{document}';
356: }
357: return $currentstring;
358: }
359: sub end_body {
360: my ($target,$token) = @_;
361: my $currentstring = '';
362: if ($target eq 'web') {
363: $currentstring = $token->[2];
364: } elsif ($target eq 'tex') {
365: $currentstring = '\end{document}';
366: }
367: return $currentstring;
368: }
369: #-- <center> tag
370: sub start_center {
371: my ($target,$token) = @_;
372: my $currentstring = '';
373: if ($target eq 'web') {
374: $currentstring = $token->[4];
375: } elsif ($target eq 'tex') {
376: $currentstring = '\begin{center}';
377: } elsif ($target eq 'latexsource') {
378: $currentstring = '\begin{center}';
379: }
380: return $currentstring;
381: }
382: sub end_center {
383: my ($target,$token) = @_;
384: my $currentstring = '';
385: if ($target eq 'web') {
386: $currentstring = $token->[2];
387: } elsif ($target eq 'tex') {
388: $currentstring = '\end{center}';
389: } elsif ($target eq 'latexsource') {
390: $currentstring = '\end{center}';
391: }
392: return $currentstring;
393: }
394: #-- <b> tag
395: sub start_b {
396: my ($target,$token) = @_;
397: my $currentstring = '';
398: if ($target eq 'web') {
399: $currentstring = $token->[4];
400: } elsif ($target eq 'tex') {
401: $currentstring = '\textbf{';
402: } elsif ($target eq 'latexsource') {
403: $currentstring = '\textbf{';
404: }
405: return $currentstring;
406: }
407: sub end_b {
408: my ($target,$token) = @_;
409: my $currentstring = '';
410: if ($target eq 'web') {
411: $currentstring = $token->[2];
412: } elsif ($target eq 'tex') {
413: $currentstring = '}';
414:
415: } elsif ($target eq 'latexsource') {
416: $currentstring = '}';
417: }
418: return $currentstring;
419: }
420: #-- <strong> tag
421: sub start_strong {
422: my ($target,$token) = @_;
423: my $currentstring = '';
424: if ($target eq 'web') {
425: $currentstring = $token->[4];
426: } elsif ($target eq 'tex') {
427: $currentstring = '\textbf{';
428: } elsif ($target eq 'latexsource') {
429: $currentstring = '\textbf{';
430: }
431: return $currentstring;
432: }
433: sub end_strong {
434: my ($target,$token) = @_;
435: my $currentstring = '';
436: if ($target eq 'web') {
437:
438: $currentstring = $token->[2];
439: } elsif ($target eq 'tex') {
440: $currentstring = '}';
441: } elsif ($target eq 'latexsource') {
442: $currentstring = '}';
443: }
444: return $currentstring;
445: }
446: #-- <h1> tag
447: sub start_h1 {
448: my ($target,$token) = @_;
449: my $currentstring = '';
450: if ($target eq 'web') {
451: $currentstring .= $token->[4];
452: } elsif ($target eq 'tex') {
453: $currentstring .= '\large{\textbf{';
454: } elsif ($target eq 'meta') {
455: $currentstring='<subject>';
456: &start_output();
457: }
458: return $currentstring;
459: }
460: sub end_h1 {
461: my ($target,$token) = @_;
462: my $currentstring = '';
463: if ($target eq 'web') {
464: $currentstring .= $token->[2];
465: } elsif ($target eq 'tex') {
466: $currentstring .= '}}';
467: } elsif ($target eq 'meta') {
468: &end_output();
469: $currentstring='</subject>';
470: }
471: return $currentstring;
472: }
473: #-- <h2> tag
474: sub start_h2 {
475: my ($target,$token) = @_;
476: my $currentstring = '';
477: if ($target eq 'web') {
478: $currentstring .= $token->[4];
479: } elsif ($target eq 'tex') {
480: $currentstring .= '\large{\textbf{';
481: }
482: return $currentstring;
483: }
484: sub end_h2 {
485: my ($target,$token) = @_;
486: my $currentstring = '';
487: if ($target eq 'web') {
488: $currentstring .= $token->[2];
489: } elsif ($target eq 'tex') {
490: $currentstring .= '}}';
491: }
492: return $currentstring;
493: }
494: #-- <h3> tag
495: sub start_h3 {
496: my ($target,$token) = @_;
497: my $currentstring = '';
498: if ($target eq 'web') {
499: $currentstring .= $token->[4];
500: } elsif ($target eq 'tex') {
501: $currentstring .= '\large{\textbf{';
502: }
503: return $currentstring;
504: }
505: sub end_h3 {
506: my ($target,$token) = @_;
507: my $currentstring = '';
508: if ($target eq 'web') {
509: $currentstring .= $token->[2];
510: } elsif ($target eq 'tex') {
511: $currentstring .= '}}';
512: }
513: return $currentstring;
514: }
515: #-- <h4> tag
516: sub start_h4 {
517: my ($target,$token) = @_;
518: my $currentstring = '';
519: if ($target eq 'web') {
520: $currentstring .= $token->[4];
521: } elsif ($target eq 'tex') {
522: $currentstring .= '\large{\textbf';
523: }
524: return $currentstring;
525: }
526: sub end_h4 {
527: my ($target,$token) = @_;
528: my $currentstring = '';
529: if ($target eq 'web') {
530: $currentstring .= $token->[2];
531: } elsif ($target eq 'tex') {
532: $currentstring .= '}}';
533: }
534: return $currentstring;
535: }
536: #-- <h5> tag
537: sub start_h5 {
538: my ($target,$token) = @_;
539: my $currentstring = '';
540: if ($target eq 'web') {
541: $currentstring .= $token->[4];
542: } elsif ($target eq 'tex') {
543: $currentstring .= '\large{\textbf{';
544: }
545: return $currentstring;
546: }
547: sub end_h5 {
548: my ($target,$token) = @_;
549: my $currentstring = '';
550: if ($target eq 'web') {
551: $currentstring .= $token->[2];
552: } elsif ($target eq 'tex') {
553: $currentstring .= '}}';
554: }
555: return $currentstring;
556: }
557: #-- <h6> tag
558: sub start_h6 {
559: my ($target,$token) = @_;
560: my $currentstring = '';
561: if ($target eq 'web') {
562: $currentstring .= $token->[4];
563: } elsif ($target eq 'tex') {
564: $currentstring .= '\large{\textbf{';
565: }
566: return $currentstring;
567: }
568: sub end_h6 {
569: my ($target,$token) = @_;
570: my $currentstring = '';
571: if ($target eq 'web') {
572: $currentstring .= $token->[2];
573: } elsif ($target eq 'tex') {
574: $currentstring .= '}}';
575: }
576: return $currentstring;
577: }
578: #--- <cite> tag
579: sub start_cite {
580: my ($target,$token) = @_;
581: my $currentstring = '';
582: if ($target eq 'web') {
583: $currentstring .= $token->[4];
584: } elsif ($target eq 'tex') {
585: $currentstring .= "\\textit{";
586: } elsif ($target eq 'latexsource') {
587: $currentstring .= "\\textit{";
588: }
589: return $currentstring;
590: }
591: sub end_cite {
592: my ($target,$token) = @_;
593: my $currentstring = '';
594: if ($target eq 'web') {
595: $currentstring .= $token->[2];
596: } elsif ($target eq 'tex') {
597: $currentstring .= "}";
598: } elsif ($target eq 'latexsource') {
599: $currentstring .= "}";
600: }
601: return $currentstring;
602: }
603: #-- <i> tag
604: sub start_i {
605: my ($target,$token) = @_;
606: my $currentstring = '';
607: if ($target eq 'web') {
608: $currentstring .= $token->[4];
609: } elsif ($target eq 'tex') {
610: $currentstring .= '\textit{';
611: } elsif ($target eq 'latexsource') {
612: $currentstring .= '\textit{';
613: }
614: return $currentstring;
615: }
616: sub end_i {
617: my ($target,$token) = @_;
618: my $currentstring = '';
619: if ($target eq 'web') {
620: $currentstring .= $token->[2];
621: } elsif ($target eq 'tex') {
622: $currentstring .= '}';
623: } elsif ($target eq 'latexsource') {
624: $currentstring .= '}';
625: }
626: return $currentstring;
627: }
628: #-- <address> tag
629: sub start_address {
630: my ($target,$token) = @_;
631: my $currentstring = '';
632: if ($target eq 'web') {
633: $currentstring .= $token->[4];
634: } elsif ($target eq 'tex') {
635: $currentstring .= "\\textit{";
636: } elsif ($target eq 'latexsource') {
637: $currentstring .= "\\textit{";
638: }
639: return $currentstring;
640: }
641: sub end_address {
642: my ($target,$token) = @_;
643: my $currentstring = '';
644: if ($target eq 'web') {
645: $currentstring .= $token->[2];
646: } elsif ($target eq 'tex') {
647: $currentstring .= "}";
648: } elsif ($target eq 'latexsource') {
649: $currentstring .= "}";
650: }
651: return $currentstring;
652: }
653: #-- <dfn> tag
654: sub start_dfn {
655: my ($target,$token) = @_;
656: my $currentstring = '';
657: if ($target eq 'web') {
658: $currentstring .= $token->[4];
659: } elsif ($target eq 'tex') {
660: $currentstring .= "\\textit{";
661: } elsif ($target eq 'latexsource') {
662: $currentstring .= "\\textit{";
663: }
664: return $currentstring;
665: }
666: sub end_dfn {
667: my ($target,$token) = @_;
668: my $currentstring = '';
669: if ($target eq 'web') {
670: $currentstring .= $token->[2];
671: } elsif ($target eq 'tex') {
672: $currentstring .= "}";
673: } elsif ($target eq 'latexsource') {
674: $currentstring .= "}";
675: }
676: return $currentstring;
677: }
678: #-- <tt> tag
679: sub start_tt {
680: my ($target,$token) = @_;
681: my $currentstring = '';
682: if ($target eq 'web') {
683: $currentstring .= $token->[4];
684: } elsif ($target eq 'tex') {
685: $currentstring .= '\texttt{';
686: } elsif ($target eq 'latexsource') {
687: $currentstring .= '\texttt{';
688: }
689: return $currentstring;
690: }
691: sub end_tt {
692: my ($target,$token) = @_;
693: my $currentstring = '';
694: if ($target eq 'web') {
695: $currentstring .= $token->[2];
696: } elsif ($target eq 'tex') {
697: $currentstring .= '}';
698: } elsif ($target eq 'latexsource') {
699: $currentstring .= '}';
700: }
701: return $currentstring;
702: }
703: #-- <kbd> tag
704: sub start_kbd {
705: my ($target,$token) = @_;
706: my $currentstring = '';
707: if ($target eq 'web') {
708: $currentstring .= $token->[4];
709: } elsif ($target eq 'tex') {
710: $currentstring .= "\\texttt";
711: } elsif ($target eq 'latexsource') {
712: $currentstring .= "\\texttt{";
713: }
714: return $currentstring;
715: }
716: sub end_kbd {
717: my ($target,$token) = @_;
718: my $currentstring = '';
719: if ($target eq 'web') {
720: $currentstring .= $token->[2];
721: } elsif ($target eq 'tex') {
722: $currentstring .= "}";
723: } elsif ($target eq 'latexsource') {
724: $currentstring .= "}";
725: }
726: return $currentstring;
727: }
728: #-- <code> tag
729: sub start_code {
730: my ($target,$token) = @_;
731: my $currentstring = '';
732: if ($target eq 'web') {
733: $currentstring .= $token->[4];
734: } elsif ($target eq 'tex') {
735: $currentstring .= '\texttt{';
736: }
737: return $currentstring;
738: }
739: sub end_code {
740: my ($target,$token) = @_;
741: my $currentstring = '';
742: if ($target eq 'web') {
743: $currentstring .= $token->[2];
744: } elsif ($target eq 'tex') {
745: $currentstring .= '}';
746: }
747: return $currentstring;
748: }
749: #-- <em> tag
750: sub start_em {
751: my ($target,$token) = @_;
752: my $currentstring = '';
753: if ($target eq 'web') {
754: $currentstring .= $token->[4];
755: } elsif ($target eq 'tex') {
756: $currentstring .= '\emph{';
757: } elsif ($target eq 'latexsource') {
758: $currentstring .= '\emph{';
759: }
760: return $currentstring;
761: }
762: sub end_em {
763: my ($target,$token) = @_;
764: my $currentstring = '';
765: if ($target eq 'web') {
766: $currentstring .= $token->[2];
767: } elsif ($target eq 'tex') {
768: $currentstring .= '}';
769: } elsif ($target eq 'latexsource') {
770: $currentstring .= '}';
771: }
772: return $currentstring;
773: }
774: #-- <q> tag
775: sub start_q {
776: my ($target,$token) = @_;
777: my $currentstring = '';
778: if ($target eq 'web') {
779: $currentstring .= $token->[4];
780: } elsif ($target eq 'tex') {
781: $currentstring .= "\\emph{";
782: } elsif ($target eq 'latexsource') {
783: $currentstring .= "\\emph{";
784: }
785: return $currentstring;
786: }
787: sub end_q {
788: my ($target,$token) = @_;
789: my $currentstring = '';
790: if ($target eq 'web') {
791: $currentstring .= $token->[2];
792: } elsif ($target eq 'tex') {
793: $currentstring .= "}";
794: } elsif ($target eq 'latexsource') {
795: $currentstring .= "}";
796: }
797: return $currentstring;
798: }
799: #-- <p> tag
800: sub start_p {
801: my ($target,$token) = @_;
802: my $currentstring = '';
803: if ($target eq 'web') {
804: $currentstring .= $token->[4];
805: } elsif ($target eq 'tex') {
806: $currentstring .= '{\par ';
807: } elsif ($target eq 'latexsource') {
808: $currentstring .= '{\par ';
809: }
810: return $currentstring;
811: }
812: sub end_p {
813: my ($target,$token) = @_;
814: my $currentstring = '';
815: if ($target eq 'web') {
816: $currentstring .= $token->[2];
817: } elsif ($target eq 'tex') {
818: $currentstring .= '}';
819: } elsif ($target eq 'latexsource') {
820: $currentstring .= '}';
821: }
822: return $currentstring;
823: }
824: #-- <br> tag
825: sub start_br {
826: my ($target,$token) = @_;
827: my $currentstring = '';
828: if ($target eq 'web') {
829: $currentstring .= $token->[4];
830: } elsif ($target eq 'tex') {
831: $currentstring .= '\\';
832: } elsif ($target eq 'latexsource') {
833: $currentstring .= '\\';
834: }
835: return $currentstring;
836: }
837: sub end_br {
838: my ($target,$token) = @_;
839: my $currentstring = '';
840: if ($target eq 'web') {
841: $currentstring .= $token->[2];
842: }
843: return $currentstring;
844: }
845: #-- <big> tag
846: sub start_big {
847: my ($target,$token) = @_;
848: my $currentstring = '';
849: if ($target eq 'web') {
850: $currentstring .= $token->[4];
851: } elsif ($target eq 'tex') {
852: $currentstring .= '\large{';
853: } elsif ($target eq 'latexsource') {
854: $currentstring .= '\large{';
855: }
856: return $currentstring;
857: }
858: sub end_big {
859: my ($target,$token) = @_;
860: my $currentstring = '';
861: if ($target eq 'web') {
862: $currentstring .= $token->[2];
863: } elsif ($target eq 'tex') {
864: $currentstring .= '}';
865: } elsif ($target eq 'latexsource') {
866: $currentstring .= '}';
867: }
868: return $currentstring;
869: }
870: #-- <small> tag
871: sub start_small {
872: my ($target,$token) = @_;
873: my $currentstring = '';
874: if ($target eq 'web') {
875: $currentstring .= $token->[4];
876: } elsif ($target eq 'tex') {
877: $currentstring .= '\footnotesize{';
878: } elsif ($target eq 'latexsource') {
879: $currentstring .= '\footnotesize{';
880: }
881: return $currentstring;
882: }
883: sub end_small {
884: my ($target,$token) = @_;
885: my $currentstring = '';
886: if ($target eq 'web') {
887: $currentstring .= $token->[2];
888: } elsif ($target eq 'tex') {
889: $currentstring .= '}';
890: } elsif ($target eq 'latexsource') {
891: $currentstring .= '}';
892: }
893: return $currentstring;
894: }
895: #-- <basefont> tag
896: sub start_basefont {
897: my ($target,$token) = @_;
898: my $currentstring = '';
899: if ($target eq 'web') {
900: $currentstring = $token->[4];
901: }
902: return $currentstring;
903: }
904: sub end_basefont {
905: my ($target,$token) = @_;
906: my $currentstring = '';
907: if ($target eq 'web') {
908: $currentstring = $token->[4];
909: }
910: return $currentstring;
911: }
912: #-- <font> tag
913: sub start_font {
914: my ($target,$token) = @_;
915: my $currentstring = '';
916: if ($target eq 'web') {
917: $currentstring = $token->[4];
918: }
919: return $currentstring;
920: }
921: sub end_font {
922: my ($target,$token) = @_;
923: my $currentstring = '';
924: if ($target eq 'web') {
925: $currentstring = $token->[2];
926: }
927: return $currentstring;
928: }
929: #-- <strike> tag
930: sub start_strike {
931: my ($target,$token) = @_;
932: my $currentstring = '';
933: if ($target eq 'web') {
934: $currentstring .= $token->[4];
935: } elsif ($target eq 'tex') {
936: $currentstring .= "{\\underline ";
937: }
938: return $currentstring;
939: }
940: sub end_strike {
941: my ($target,$token) = @_;
942: my $currentstring = '';
943: if ($target eq 'web') {
944: $currentstring .= $token->[2];
945: } elsif ($target eq 'tex') {
946: $currentstring .= " }";
947: }
948: return $currentstring;
949: }
950: #-- <s> tag
951: sub start_s {
952: my ($target,$token) = @_;
953: my $currentstring = '';
954: if ($target eq 'web') {
955: $currentstring .= $token->[4];
956: } elsif ($target eq 'tex') {
957: $currentstring .= "{\\underline ";
958: }
959: return $currentstring;
960: }
961: sub end_s {
962: my ($target,$token) = @_;
963: my $currentstring = '';
964: if ($target eq 'web') {
965: $currentstring .= $token->[2];
966: } elsif ($target eq 'tex') {
967: $currentstring .= " }";
968: }
969: return $currentstring;
970: }
971: #-- <sub> tag
972: sub start_sub {
973: my ($target,$token) = @_;
974: my $currentstring = '';
975: if ($target eq 'web') {
976: $currentstring .= $token->[4];
977: } elsif ($target eq 'tex') {
978: $currentstring .= "\$_{ ";
979: }
980: return $currentstring;
981: }
982: sub end_sub {
983: my ($target,$token) = @_;
984: my $currentstring = '';
985: if ($target eq 'web') {
986: $currentstring .= $token->[2];
987: } elsif ($target eq 'tex') {
988: $currentstring .= " }\$";
989: }
990: return $currentstring;
991: }
992: #-- <sup> tag
993: sub start_sup {
994: my ($target,$token) = @_;
995: my $currentstring = '';
996: if ($target eq 'web') {
997: $currentstring .= $token->[4];
998: } elsif ($target eq 'tex') {
999: $currentstring .= "\$^{ ";
1000: }
1001: return $currentstring;
1002: }
1003: sub end_sup {
1004: my ($target,$token) = @_;
1005: my $currentstring = '';
1006: if ($target eq 'web') {
1007: $currentstring .= $token->[2];
1008: } elsif ($target eq 'tex') {
1009: $currentstring .= " }\$";
1010: }
1011: return $currentstring;
1012: }
1013: #-- <hr> tag
1014: sub start_hr {
1015: my ($target,$token) = @_;
1016: my $currentstring = '';
1017: if ($target eq 'web') {
1018: $currentstring .= $token->[4];
1019: } elsif ($target eq 'tex') {
1020: $currentstring .= "\\hline ";
1021: }
1022: return $currentstring;
1023: }
1024: sub end_hr {
1025: my ($target,$token) = @_;
1026: my $currentstring = '';
1027: if ($target eq 'web') {
1028: $currentstring .= $token->[2];
1029: } elsif ($target eq 'tex') {
1030: }
1031: return $currentstring;
1032: }
1033: #-- <a> tag
1034: sub start_a {
1035: my ($target,$token) = @_;
1036: my $currentstring = '';
1037: if ($target eq 'web') {
1038: $currentstring .= $token->[4];
1039: } elsif ($target eq 'tex') {
1040: }
1041: return $currentstring;
1042: }
1043: sub end_a {
1044: my ($target,$token,$tagstack,$stackref) = @_;
1045: my $currentstring = '';
1046: if ($target eq 'web') {
1047: $currentstring .= $token->[2];
1048: } elsif ($target eq 'tex') {
1049: my $tempor_var = $stackref->[$#$stackref];
1050: if (index($tempor_var,'name') != -1 ) {
1051: $tempor_var =~ s/name=([^,]*),/$1/g;
1052: # $currentstring .= " \\label{$tempor_var}";
1053: } elsif (index($tempor_var,'href') != -1 ) {
1054: $tempor_var =~ s/href=([^,]*),/$1/g;
1055: $currentstring .= " \\ref{$tempor_var}";
1056: }
1057: }
1058: return $currentstring;
1059: }
1060: #-- <li> tag
1061: sub start_li {
1062: my ($target,$token,$tagstack,$stackref) = @_;
1063: my $currentstring = '';
1064: if ($target eq 'web') {
1065: $currentstring = $token->[4];
1066: } elsif ($target eq 'tex') {
1067: my $tempor_var = $stackref->[$#$stackref];
1068: if (index($tempor_var,'circle') != -1 ) {
1069: $currentstring .= " \\item[o] ";
1070: } elsif (index($tempor_var,'square') != -1 ) {
1071: $currentstring .= " \\item[$\Box$] ";
1072: } elsif ($tempor_var ne '') {
1073: $_ = $tempor_var;
1074: m/my\s*([^=]*)=/;
1075: $currentstring .= " \\item[$1] ";
1076: } else {
1077: $currentstring .= " \\item ";
1078: }
1079: }
1080: return $currentstring;
1081: }
1082: sub end_li {
1083: my ($target,$token) = @_;
1084: my $currentstring = '';
1085: if ($target eq 'web') {
1086: $currentstring = $token->[2];
1087: }
1088: return $currentstring;
1089: }
1090: #-- <u> tag
1091: sub start_u {
1092: my ($target,$token) = @_;
1093: my $currentstring = '';
1094: if ($target eq 'web') {
1095: $currentstring .= $token->[4];
1096: } elsif ($target eq 'tex') {
1097: $currentstring .= "{\\underline ";
1098: }
1099: return $currentstring;
1100: }
1101: sub end_u {
1102: my ($target,$token) = @_;
1103: my $currentstring = '';
1104: if ($target eq 'web') {
1105: $currentstring .= $token->[2];
1106: } elsif ($target eq 'tex') {
1107: $currentstring .= " }";
1108: }
1109: return $currentstring;
1110: }
1111: #-- <ul> tag
1112: sub start_ul {
1113: my ($target,$token) = @_;
1114: my $currentstring = '';
1115: if ($target eq 'web') {
1116: $currentstring = $token->[4];
1117: } elsif ($target eq 'tex') {
1118: $currentstring = " \\begin{itemize} ";
1119: }
1120: return $currentstring;
1121: }
1122: sub end_ul {
1123: my ($target,$token) = @_;
1124: my $currentstring = '';
1125: if ($target eq 'web') {
1126: $currentstring = $token->[2];
1127: } elsif ($target eq 'tex') {
1128: $currentstring = " \\end{itemize}";
1129: }
1130: return $currentstring;
1131: }
1132: #-- <menu> tag
1133: sub start_menu {
1134: my ($target,$token) = @_;
1135: my $currentstring = '';
1136: if ($target eq 'web') {
1137: $currentstring = $token->[4];
1138: } elsif ($target eq 'tex') {
1139: $currentstring = " \\begin{itemize} ";
1140: }
1141: return $currentstring;
1142: }
1143: sub end_menu {
1144: my ($target,$token) = @_;
1145: my $currentstring = '';
1146: if ($target eq 'web') {
1147: $currentstring = $token->[2];
1148: } elsif ($target eq 'tex') {
1149: $currentstring = " \\end{itemize}";
1150: }
1151: return $currentstring;
1152: }
1153: #-- <dir> tag
1154: sub start_dir {
1155: my ($target,$token) = @_;
1156: my $currentstring = '';
1157: if ($target eq 'web') {
1158: $currentstring = $token->[4];
1159: } elsif ($target eq 'tex') {
1160: $currentstring = " \\begin{itemize} ";
1161: }
1162: return $currentstring;
1163: }
1164: sub end_dir {
1165: my ($target,$token) = @_;
1166: my $currentstring = '';
1167: if ($target eq 'web') {
1168: $currentstring = $token->[2];
1169: } elsif ($target eq 'tex') {
1170: $currentstring = " \\end{itemize}";
1171: }
1172: return $currentstring;
1173: }
1174: #-- <ol> tag
1175: sub start_ol {
1176: my ($target,$token) = @_;
1177: my $currentstring = '';
1178: if ($target eq 'web') {
1179: $currentstring = $token->[4];
1180: } elsif ($target eq 'tex') {
1181: $currentstring = " \\begin{enumerate} ";
1182: }
1183: return $currentstring;
1184: }
1185: sub end_ol {
1186: my ($target,$token) = @_;
1187: my $currentstring = '';
1188: if ($target eq 'web') {
1189: $currentstring = $token->[2];
1190: } elsif ($target eq 'tex') {
1191: $currentstring = " \\end{enumerate}";
1192: }
1193: return $currentstring;
1194: }
1195: #-- <dl> tag
1196: sub start_dl {
1197: my ($target,$token) = @_;
1198: my $currentstring = '';
1199: if ($target eq 'web') {
1200: $currentstring = $token->[4];
1201: } elsif ($target eq 'tex') {
1202: $currentstring = " \\begin{description} ";
1203: }
1204: return $currentstring;
1205: }
1206: sub end_dl {
1207: my ($target,$token) = @_;
1208: my $currentstring = '';
1209: if ($target eq 'web') {
1210: $currentstring = $token->[2];
1211: } elsif ($target eq 'tex') {
1212: $currentstring = " \\end{description}";
1213: }
1214: return $currentstring;
1215: }
1216: #-- <dt> tag
1217: sub start_dt {
1218: my ($target,$token) = @_;
1219: my $currentstring = '';
1220: if ($target eq 'web') {
1221: $currentstring = $token->[4];
1222: } elsif ($target eq 'tex') {
1223: $currentstring = "\\item[ ";
1224: }
1225: return $currentstring;
1226: }
1227: sub end_dt {
1228: my ($target,$token) = @_;
1229: my $currentstring = '';
1230: if ($target eq 'web') {
1231: $currentstring = $token->[2];
1232: } elsif ($target eq 'tex') {
1233: $currentstring = "]";
1234: }
1235: return $currentstring;
1236: }
1237: #-- <dd> tag
1238: sub start_dd {
1239: my ($target,$token) = @_;
1240: my $currentstring = '';
1241: if ($target eq 'web') {
1242: $currentstring = $token->[4];
1243: }
1244: return $currentstring;
1245: }
1246: sub end_dd {
1247: my ($target,$token) = @_;
1248: my $currentstring = '';
1249: if ($target eq 'web') {
1250: $currentstring = $token->[2];
1251: }
1252: return $currentstring;
1253: }
1254: #-- <table> tag
1255: sub start_table {
1256: my ($target,$token) = @_;
1257: my $currentstring = '';
1258: if ($target eq 'web') {
1259: $currentstring = $token->[4];
1260: } elsif ($target eq 'tex') {
1261: $currentstring = "";
1262: }
1263: return $currentstring;
1264: }
1265: sub end_table {
1266: my ($target,$token) = @_;
1267: my $currentstring = '';
1268: if ($target eq 'web') {
1269: $currentstring = $token->[2];
1270: } elsif ($target eq 'tex') {
1271: $currentstring = "";
1272: }
1273: return $currentstring;
1274: }
1275: #-- <tr> tag
1276: sub start_tr {
1277: my ($target,$token) = @_;
1278: my $currentstring = '';
1279: if ($target eq 'web') {
1280: $currentstring = $token->[4];
1281: } elsif ($target eq 'tex') {
1282: $currentstring = '';
1283: }
1284: return $currentstring;
1285: }
1286: sub end_tr {
1287: my ($target,$token) = @_;
1288: my $currentstring = '';
1289: if ($target eq 'web') {
1290: $currentstring = $token->[2];
1291: } elsif ($target eq 'tex') {
1292: $currentstring = "";
1293: }
1294: return $currentstring;
1295: }
1296: #-- <td> tag
1297: sub start_td {
1298: my ($target,$token) = @_;
1299: my $currentstring = '';
1300: if ($target eq 'web') {
1301: $currentstring = $token->[4];
1302: } elsif ($target eq 'tex') {
1303: $currentstring = '';
1304: }
1305: return $currentstring;
1306: }
1307: sub end_td {
1308: my ($target,$token) = @_;
1309: my $currentstring = '';
1310: if ($target eq 'web') {
1311: $currentstring = $token->[2];
1312: } elsif ($target eq 'tex') {
1313: $currentstring = "";
1314: }
1315: return $currentstring;
1316: }
1317: #-- <img> tag
1318:
1319: sub start_img {
1320: my ($target,$token) = @_;
1321: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
1322: $token->[2]->{'src'};
1323: my $currentstring = '';
1324: if ($target eq 'web') {
1325: $currentstring = $token->[4];
1326: } elsif ($target eq 'tex') {
1327: $currentstring = " \\begin{figure} ";
1328: }
1329: return $currentstring;
1330: }
1331: sub end_img {
1332: my ($target,$token) = @_;
1333: my $currentstring = '';
1334: if ($target eq 'web') {
1335: $currentstring = $token->[2];
1336: } elsif ($target eq 'tex') {
1337: $currentstring = " \\end{figure}";
1338: }
1339: return $currentstring;
1340: }
1341: #-- <applet> tag
1342:
1343: sub start_applet {
1344: my ($target,$token) = @_;
1345: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
1346: $token->[2]->{'code'};
1347: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
1348: $token->[2]->{'archive'};
1349: my $currentstring = '';
1350: if ($target eq 'web') {
1351: $currentstring = $token->[4];
1352: } elsif ($target eq 'tex') {
1353: $currentstring = " \\begin{figure} ";
1354: }
1355: return $currentstring;
1356: }
1357: sub end_applet {
1358: my ($target,$token) = @_;
1359: my $currentstring = '';
1360: if ($target eq 'web') {
1361: $currentstring = $token->[2];
1362: } elsif ($target eq 'tex') {
1363: $currentstring = " \\end{figure}";
1364: }
1365: return $currentstring;
1366: }
1367:
1368: #-- <embed> tag
1369:
1370: sub start_embed {
1371: my ($target,$token) = @_;
1372: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
1373: $token->[2]->{'src'};
1374: my $currentstring = '';
1375: if ($target eq 'web') {
1376: $currentstring = $token->[4];
1377: } elsif ($target eq 'tex') {
1378: $currentstring = " \\begin{figure} ";
1379: }
1380: return $currentstring;
1381: }
1382: sub end_embed {
1383: my ($target,$token) = @_;
1384: my $currentstring = '';
1385: if ($target eq 'web') {
1386: $currentstring = $token->[2];
1387: } elsif ($target eq 'tex') {
1388: $currentstring = " \\end{figure}";
1389: }
1390: return $currentstring;
1391: }
1392:
1393: #-- <param> tag
1394:
1395: sub start_param {
1396: my ($target,$token) = @_;
1397: if ($token->[2]->{'name'} eq 'cabbase') {
1398: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
1399: $token->[2]->{'value'};
1400: }
1401: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
1402: $token->[2]->{'src'};
1403: my $currentstring = '';
1404: if ($target eq 'web') {
1405: $currentstring = $token->[4];
1406: } elsif ($target eq 'tex') {
1407: $currentstring = " \\begin{figure} ";
1408: }
1409: return $currentstring;
1410: }
1411: sub end_param {
1412: my ($target,$token) = @_;
1413: my $currentstring = '';
1414: if ($target eq 'web') {
1415: $currentstring = $token->[2];
1416: } elsif ($target eq 'tex') {
1417: $currentstring = " \\end{figure}";
1418: }
1419: return $currentstring;
1420: }
1421:
1422: #-- <allow> tag
1423:
1424: sub start_allow {
1425: my ($target,$token) = @_;
1426:
1427: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
1428: $token->[2]->{'src'};
1429:
1430: return '';
1431: }
1432: sub end_allow {
1433: return '';
1434: }
1435: #-- Frames
1436: sub start_frameset {
1437: my ($target,$token) = @_;
1438: my $currentstring = '';
1439: if ($target eq 'web') {
1440: if (!$Apache::lonxml::registered) {
1441: $currentstring.='<head>'.&Apache::lonxml::registerurl().'</head>';
1442: }
1443: $currentstring .= $token->[4];
1444: }
1445: return $currentstring;
1446: }
1447: sub end_frameset {
1448: my ($target,$token) = @_;
1449: my $currentstring = '';
1450: if ($target eq 'web') {
1451: $currentstring = $token->[2];
1452: }
1453: return $currentstring;
1454: }
1455: 1;
1456: __END__
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