1: # The LearningOnline Network with CAPA
2: # <script> definiton
3: #
4: # $Id: scripttag.pm,v 1.165 2012/02/05 23:00:06 raeburn 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:
29: package Apache::scripttag;
30:
31: use strict;
32: use Apache::lonnet;
33: use Apache::lonlocal;
34: use Apache::style();
35:
36: #Globals
37: # this used to pass around the standard callsub arguments to a tag func
38: # so xmlparse can reenter the inner_xmlparse loop.
39:
40: @Apache::scripttag::parser_env = ();
41: BEGIN {
42: &Apache::lonxml::register('Apache::scripttag',
43: ('script','scriptlib','parserlib','import',
44: 'window','windowlink','togglebox','display','storetc','physnet',
45: 'standalone','comment','num','parse','algebra',
46: 'LONCAPA_INTERNAL_TURN_STYLE_ON',
47: 'LONCAPA_INTERNAL_TURN_STYLE_OFF'));
48: }
49:
50: sub start_LONCAPA_INTERNAL_TURN_STYLE_ON {
51: $Apache::lonxml::usestyle=1;
52: $Apache::lonxml::style_values='';
53: return ('','no');
54: }
55:
56: sub end_LONCAPA_INTERNAL_TURN_STYLE_ON {
57: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
58: my $end=&Apache::lonxml::get_param('end',$parstack,$safeeval);
59: if (defined($end)) {
60: &Apache::lonxml::end_tag($tagstack,$parstack,$token);
61: }
62: return ('','no');
63: }
64:
65: sub start_LONCAPA_INTERNAL_TURN_STYLE_OFF {
66: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
67: $Apache::lonxml::usestyle=0;
68: my $end=&Apache::lonxml::get_param('end',$parstack,$safeeval);
69: if (!$end) {
70: $Apache::lonxml::style_values=$$parstack[-1];
71: $Apache::lonxml::style_end_values=$$parstack[-1];
72: } else {
73: $Apache::lonxml::style_values=$Apache::lonxml::style_end_values;
74: $Apache::lonxml::style_end_values='';
75: }
76: return ('','no');
77: }
78:
79: sub end_LONCAPA_INTERNAL_TURN_STYLE_OFF {
80: return ('','no');
81: }
82:
83: sub start_script {
84: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
85: @Apache::scripttag::parser_env = @_;
86: my $result='';
87: my $type= &Apache::lonxml::get_param('type',$parstack,$safeeval);
88: &Apache::lonxml::debug("found type of $type");
89: if ($type eq "loncapa/perl") {
90: if ( $target eq "modified" ) {
91: $result=$token->[4].&Apache::edit::modifiedfield('/script',$parser);
92: } elsif ( $target eq 'web' || $target eq 'tex' ||
93: $target eq 'grade' || $target eq 'webgrade' ||
94: $target eq 'answer' || $target eq 'analyze' ) {
95: my $bodytext=&Apache::lonxml::get_all_text_unbalanced("/script",$parser);
96: if (!$Apache::lonxml::default_homework_loaded) {
97: &Apache::lonxml::default_homework_load($safeeval);
98: }
99: &Apache::run::run($bodytext,$safeeval);
100: if (($target eq 'answer') &&
101: ($env{'form.answer_output_mode'} ne 'tex') &&
102: ($Apache::lonhomework::viewgrades == 'F')) {
103: $Apache::lonxml::evaluate--;
104: my (undef,undef,$udom,$uname)=&Apache::lonnet::whichuser();
105: $uname =~s/\W//g;
106: $udom =~s/\W//g;
107: my $function_name =
108: join('_','LONCAPA_scriptvars',$uname,$udom,
109: $env{'form.counter'},$Apache::lonxml::curdepth);
110: &Apache::lonxml::add_script_result(
111: &Apache::loncommon::modal_adhoc_window($function_name,500,500,
112: '<pre>'.&Apache::run::dump($target,$safeeval).'</pre>',
113: &mt('Script Vars'))."<br />");
114: }
115: } elsif ($target eq "edit" ) {
116: #&Apache::run::run($bodytext,$safeeval);
117: #$result="<br /> <$token->[1]> output: <br />$bodytext<br />Source:<br />";
118: my $bodytext=&Apache::lonxml::get_all_text_unbalanced("/script",$parser);
119: $result=&Apache::edit::tag_start($target,$token,'Script');
120: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',80,4);
121: } elsif ($target eq 'meta') {
122: my $bodytext=&Apache::lonxml::get_all_text_unbalanced("/script",$parser);
123: }
124: } else {
125: my $bodytext=&Apache::lonxml::get_all_text_unbalanced("/script",$parser);
126: if ($target ne "meta" && $target ne 'tex' && $target ne 'answer') {
127: $result = $token->[4];
128: $result.=$bodytext;
129: if ($type eq "text/javascript") {
130: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
131: if (($src =~ /\.js$/) && ($src !~ m{^(/|https?://)})) {
132: my ($path,$scriptname) = ($src =~ m{^(.+)/([^/]*)$});
133: my $docuri =
134: $Apache::lonnet::env{'request.noversionuri'};
135: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
136: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
137: if ($docuri =~ m{^(\Q/uploaded/$cdom/$cnum\E)/(docs/.*/)[^/]+$}) {
138: my $prefix = $1;
139: my $relpath = $2;
140: my $cleanrelpath;
141: foreach my $dir (split(/\//,$relpath.$path)) {
142: next if ($dir eq '.');
143: if ($dir eq '..') {
144: $cleanrelpath =~ s{([^/]+/)$}{};
145: } else {
146: $cleanrelpath .= $dir.'/';
147: }
148: }
149: $cleanrelpath =~ s{/$}{};
150: if ($cleanrelpath ne '') {
151: $src = $prefix.'/'.$cleanrelpath.'/'.$scriptname;
152: } else {
153: $src = $prefix.'/'.$scriptname;
154: }
155: if ($src ne '') {
156: &Apache::lonxml::extlink($src);
157: }
158: }
159: }
160: }
161: }
162: }
163: return $result;
164: }
165:
166: sub end_script {
167: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
168: if ( $target eq "meta" ) { return ''; }
169: my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval);
170: my $result='';
171: #other script blocks need to survive
172: if ($type ne "loncapa/perl" && $target ne 'tex') {
173: return $token->[2];
174: } elsif ($target eq 'edit' ) {
175: return &Apache::edit::end_table();
176: } elsif ($target eq 'answer') {
177: $Apache::lonxml::evaluate++;
178: }
179: return '';
180: }
181:
182: sub start_display {
183: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
184: @Apache::scripttag::parser_env = @_;
185: my $result;
186:
187: if ( $target eq "modified" ) {
188: $result=$token->[4].&Apache::edit::modifiedfield("/display",$parser);
189: } elsif ( $target eq 'web' || $target eq 'tex' ||
190: $target eq 'grade' || $target eq 'webgrade' ||
191: $target eq 'answer' || $target eq 'analyze') {
192: my $bodytext=&Apache::lonxml::get_all_text_unbalanced("/display",$parser);
193: if (!$Apache::lonxml::default_homework_loaded) {
194: &Apache::lonxml::default_homework_load($safeeval);
195: }
196: $result=&Apache::run::run($bodytext,$safeeval);
197: if ($target eq 'grade' || $target eq 'answer' ||
198: $target eq 'analyze') {
199: # grade/answer/analyxe should produce no output but if we
200: # are redirecting, the redirecter should know what to do
201: # with the output
202: if (!$Apache::lonxml::redirection) { $result=''; }
203: }
204: $Apache::lonxml::post_evaluate=0;
205: } elsif ($target eq "edit" ) {
206: my $bodytext=&Apache::lonxml::get_all_text_unbalanced("/display",$parser);
207: #$result =
208: # "<br /> <$token->[1]> output: <br />$bodytext<br />Source:<br />";
209: #$result.=&Apache::edit::editfield($token->[1],$bodytext,'',40,1);
210: $result=&Apache::edit::tag_start($target,$token,'Script With Display');
211: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',80,1)
212: } elsif ($target eq 'meta') {
213: my $bodytext=&Apache::lonxml::get_all_text_unbalanced("/display",$parser);
214: }
215: return $result;
216: }
217:
218: sub end_display {
219: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
220: if ($target eq 'edit' ) { return &Apache::edit::end_table(); }
221: return '';
222: }
223:
224: sub start_scriptlib {
225: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
226: my $bodytext;
227: my $result ='';
228: my $error='';
229:
230: if ($target eq 'web' || $target eq 'tex' || $target eq 'grade' ||
231: $target eq 'meta' || $target eq 'edit' || $target eq 'answer' ||
232: $target eq 'analyze' || $target eq 'webgrade') {
233: $bodytext=$$parser[$#$parser]->get_text("/scriptlib");
234: $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
235: $$parstack[$#$parstack]);
236: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
237: $bodytext);
238: my $script=&Apache::lonnet::getfile($location);
239: if ($script == -1) {
240: if ($target eq 'edit') {
241: $error='</tr><tr><td>'.&mt('Errors').'</td><td colspan="2"><b>'.&mt(' Unable to find [_1]','<span class="LC_filename">'.$location.'</span>').'</b></td>'."\n";
242: } else {
243: &Apache::lonxml::error("<b> Unable to find <i>$location</i> for scriptlib</b>");
244: return "";
245: }
246: }
247: &Apache::run::run($script,$safeeval);
248: #&Apache::lonxml::debug("ran $bodytext:<br />".&Apache::lonnet::getfile($bodytext)."<br />");
249: }
250: if ($target eq "edit" ) {
251: $result=
252: &Apache::edit::tag_start($target,$token,'New Script Functions').
253: &Apache::edit::editline($token->[1],$bodytext,'scriptlib',40).
254: &Apache::edit::browse(undef,'textnode').
255: $error.'</td></tr>'.
256: &Apache::edit::end_table();
257: }
258: if ($target eq "modified" ) {
259: $result=$token->[4].&Apache::edit::modifiedfield("/scriptlib",$parser);
260: }
261: return $result;
262: }
263:
264: sub end_scriptlib {
265: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
266: my @result;
267: if ($target eq "edit" ) { $result[1]='no'; }
268: return @result;
269: }
270:
271: sub start_parserlib {
272: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
273: my $bodytext;
274: my $result ="";
275: my $error='';
276: if ($target eq 'web' || $target eq 'tex' || $target eq 'grade' ||
277: $target eq 'meta' || $target eq 'edit' || $target eq 'answer' ||
278: $target eq 'analyze' || $target eq 'webgrade') {
279: $bodytext=$$parser[$#$parser]->get_text("/parserlib");
280: $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
281: $$parstack[$#$parstack]);
282: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
283: $bodytext);
284: my $styletext=&Apache::lonnet::getfile($location);
285: #&Apache::lonxml::debug("found :$bodytext: in :$location: with :$styletext:");
286: if ($styletext == -1) {
287: if ($target eq 'edit') {
288: $error='</tr><tr><td>Errors</td><td colspan="2"><b> Unable to find <i>'.$location.'</i></b></td>'."\n";
289: } else {
290: &Apache::lonxml::error("<b> Unable to find <i>$location</i> for parserlib</b>");
291: return "";
292: }
293: }
294: %$style = ( %$style , &Apache::style::styleparser($target,$styletext));
295: }
296: if ($target eq "edit" ) {
297: $result=
298: &Apache::edit::tag_start($target,$token,'New Tag Definitions').
299: &Apache::edit::editline($token->[1],$bodytext,'',40).
300: $error.'</td></tr>'.
301: &Apache::edit::end_table();
302: }
303: if ($target eq "modified" ) {
304: $result=$token->[4].&Apache::edit::modifiedfield("/parserlib",$parser);
305: }
306: return $result;
307: }
308:
309: sub end_parserlib {
310: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
311: my @result;
312: if ($target eq "edit" ) { $result[1]='no'; }
313: return @result;
314: }
315:
316: sub start_window {
317: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
318: my $result = '';
319: if ($target eq 'web' || $target eq 'webgrade') {
320: &Apache::lonxml::startredirection;
321: } elsif ($target eq 'tex') {
322: my $printtext=&Apache::lonxml::get_param('printtext',$parstack,$safeeval);
323: if ($printtext=~/\w/) {
324: # If printtext is given, do not output any intervening information
325: &Apache::lonxml::startredirection;
326: } else {
327: $result = '\unskip\footnote{';
328: }
329: } elsif ($target eq 'edit') {
330: $result.=&Apache::edit::tag_start($target,$token);
331: $result.=&Apache::edit::text_arg('Text of Link:','linktext',$token,70);
332: $result.=&Apache::edit::text_arg('Height:','height',$token,5);
333: $result.=&Apache::edit::text_arg('Width:','width',$token,5);
334: $result.=&Apache::edit::text_arg('Printed text (optional):','printtext',$token,20);
335: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
336: } elsif ($target eq 'modified') {
337: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
338: $safeeval,'linktext',
339: 'width','height');
340: if ($constructtag) { $result=&Apache::edit::rebuild_tag($token); }
341: }
342: return $result;
343: }
344:
345: sub end_window {
346: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
347: my $result;
348: if ($target eq 'web' || $target eq 'webgrade') {
349: my $output=&Apache::lonxml::endredirection;
350: my $linktext= &Apache::lonxml::get_param('linktext',$parstack,$safeeval);
351: if (!$linktext) { $linktext='<sup>*</sup>'; }
352: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
353: if (!$width) { $width='500'; }
354: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
355: if (!$height) { $height='200'; }
356: $result=&Apache::loncommon::modal_adhoc_window
357: ("LONCAPA_newwindow_$Apache::lonxml::curdepth",$width,$height,$output,$linktext);
358: } elsif ($target eq 'tex') {
359: my $printtext=&Apache::lonxml::get_param('printtext',$parstack,$safeeval);
360: if ($printtext=~/\w/) {
361: # If a "printtext" is given, proceed to retrieve all intervening information and trash it
362: my $output=&Apache::lonxml::endredirection;
363: # Use printtext instead
364: $result=$printtext;
365: } else {
366: $result='}';
367: }
368: } else {
369: $result = '';
370: }
371: return $result;
372: }
373:
374:
375: sub start_windowlink {
376: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
377: my $result = '';
378: if ($target eq 'web' || $target eq 'webgrade') {
379: &Apache::lonxml::startredirection;
380: } elsif ($target eq 'edit') {
381: $result.=&Apache::edit::tag_start($target,$token);
382: $result.=&Apache::edit::text_arg('Link:','href',$token,70);
383: $result.=&Apache::edit::text_arg('Height:','height',$token,5);
384: $result.=&Apache::edit::text_arg('Width:','width',$token,5);
385: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
386: } elsif ($target eq 'modified') {
387: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
388: $safeeval,'href',
389: 'width','height');
390: if ($constructtag) { $result=&Apache::edit::rebuild_tag($token); }
391: }
392: return $result;
393: }
394:
395: sub end_windowlink {
396: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
397: my $result;
398: if ($target eq 'web' || $target eq 'webgrade') {
399: my $output=&Apache::lonxml::endredirection;
400: my $href= &Apache::lonxml::get_param('href',$parstack,$safeeval);
401: if (!$href) { $href='/adm/rat/empty.html'; }
402: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
403: if (!$width) { $width='500'; }
404: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
405: if (!$height) { $height='200'; }
406: $result=&Apache::loncommon::modal_link($href,$output,$width,$height);
407: } else {
408: $result = '';
409: }
410: return $result;
411: }
412:
413:
414: sub start_togglebox {
415: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
416: my $result = '';
417: if ($target eq 'web' || $target eq 'webgrade') {
418: my $id="LONCAPA_togglebox_$Apache::lonxml::curdepth";
419: my $heading=&Apache::lonxml::get_param('heading',$parstack,$safeeval);
420: unless ($heading) { $heading=''; } else { $heading.=' '; }
421: my $showtext=&Apache::lonxml::get_param('showtext',$parstack,$safeeval);
422: my $hidetext=&Apache::lonxml::get_param('hidetext',$parstack,$safeeval);
423: my $headerbg=&Apache::lonxml::get_param('headerbg',$parstack,$safeeval);
424: $result=&Apache::loncommon::start_togglebox($id,$heading,$headerbg,$hidetext,$showtext);
425: } elsif ($target eq 'tex') {
426: my $heading=&Apache::lonxml::get_param('heading',$parstack,$safeeval);
427: unless ($heading) { $heading=''; } else { $heading.=' '; }
428: $result = "\n\n".'\fbox{{\bf '.$heading.'} \qquad '."\n";
429: } elsif ($target eq 'edit') {
430: $result.=&Apache::edit::tag_start($target,$token);
431: $result.=&Apache::edit::text_arg('Heading:','heading',$token,70);
432: $result.=&Apache::edit::text_arg('Header Background:','headerbg',$token,7);
433: $result.=&Apache::edit::text_arg('Show text:','showtext',$token,10);
434: $result.=&Apache::edit::text_arg('Hide text:','hidetext',$token,10);
435: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
436: } elsif ($target eq 'modified') {
437: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
438: $safeeval,'heading',
439: 'showtext','hidetext',
440: 'headerbg','textbg');
441: if ($constructtag) { $result=&Apache::edit::rebuild_tag($token); }
442: }
443: return $result;
444: }
445:
446: sub end_togglebox {
447: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
448: my $result;
449: if ($target eq 'web' || $target eq 'webgrade') {
450: $result=&Apache::loncommon::end_togglebox();
451: } elsif ($target eq 'tex') {
452: $result = "}\n\n";
453: } else {
454: $result = '';
455: }
456: return $result;
457: }
458:
459:
460:
461: sub start_import {
462: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
463: my $bodytext=$$parser[$#$parser]->get_text("/import");
464: my $result ="";
465:
466: $bodytext=&Apache::run::evaluate($bodytext,$safeeval,$$parstack[$#$parstack]);
467:
468: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'grade'
469: || $target eq 'answer' || $target eq 'tex' || $target eq 'analyze' ) {
470: # FIXME this probably needs to be smart about construction vs.
471: # non construction space.
472: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
473: my $file=&Apache::lonnet::getfile($location);
474: if ($file == -1) {
475: &Apache::lonxml::error("<b> Unable to find <i>$bodytext as $location</i> for import</b>");
476: return "";
477: }
478: my $importmode=&Apache::lonxml::get_param('importmode',$parstack,$safeeval);
479: if (($importmode eq 'problem') || ($importmode eq 'part')) {
480: # We are using import to import published problems
481: if (($importmode eq 'problem') || ($file=~/<part[^<]*>/s)) {
482: # We explicitly don't want this to be a separate part or the problem already has parts
483: $file=~s/^\s*<problem>/<library>/s;
484: $file=~s/<\/problem>\s*$/<\/library>/s;
485: } else {
486: # We want this to be a separate part, but it currently is not
487: $file=~s/^\s*<problem>/<library><part>/s;
488: $file=~s/<\/problem>\s*$/<\/part><\/library>/s;
489: }
490: }
491: my $dir=$location;
492: $dir=~s:/[^/]*$::;
493: # &Apache::lonxml::debug("directory $dir $location file $file \n<b>END</b>\n");
494: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
495: if (!$id) { $id=$Apache::lonxml::curdepth; }
496: push(@Apache::inputtags::import,$id);
497: push(@Apache::inputtags::importlist,$id);
498:
499: &Apache::lonxml::newparser($parser,\$file,$dir);
500:
501: } elsif ($target eq "edit" ) {
502: $result.=&Apache::edit::tag_start($target,$token);
503: my $location=$token->[1];
504: $location=~s/^\s*//s;
505: $location=~s/\s*$//s;
506: $result.=&Apache::edit::editline($location,$bodytext,'',40);
507: $result.=&Apache::edit::browse(undef,'textnode');
508: $result.= ' <label>'.&mt('Import as:').
509: '<select name="importmode_'.$Apache::lonxml::curdepth.'">';
510: my %options=&Apache::lonlocal::texthash('' => 'as standard library',
511: 'problem' => 'as problem',
512: 'part' => 'as problem part(s)');
513: foreach my $option (sort(keys(%options))) {
514: $result.='<option value="'.$option.'"';
515: if ($option eq &Apache::lonxml::get_param('importmode',$parstack,$safeeval)) {
516: $result.=' selected="selected"';
517: }
518: $result.='>'.$options{$option}.'</option>';
519: }
520: $result.='</select></label>';
521: #FIXME this need to convert $bodytext to be a contruction space reference
522: #my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
523: #$result.="Click<a href=\"$location\">here</a> to edit<br />"
524: } elsif ($target eq 'modified') {
525: &Apache::edit::get_new_args($token,$parstack,$safeeval,'importmode');
526: $result='<import id="'.$token->[2]{'id'}.'" importmode="'.$token->[2]{'importmode'}.'">';
527: $result.=&Apache::edit::modifiedfield("/import",$parser);
528: } elsif ($target eq 'meta') {
529: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
530: $result.='<import part="'.$Apache::inputtags::part;
531: if ($id) {
532: $result.='" id="'.$id;
533: }
534: $result.='" importmode="'.$token->[2]{'importmode'}.'">';
535: $result.=$bodytext;
536: $result.='</import>';
537: }
538: return $result;
539: }
540:
541: sub end_import {
542: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
543: pop(@Apache::inputtags::import);
544: my $result;
545: if ($target eq 'edit' ) { $result=&Apache::edit::end_row.
546: &Apache::edit::end_table(); }
547: return $result;
548: }
549:
550: sub start_storetc {
551: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
552: my $result = '';
553: &Apache::lonxml::startredirection;
554: return $result;
555: }
556:
557: sub end_storetc {
558: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
559: my $result;
560: my $output=&Apache::lonxml::endredirection;
561: $output =~ s/\"/\"\;/g;
562: $result = '{\bf '.$output.'.}}\write\tcfile{\protect\tcpc{ '.$output.'.}{\the\value{relpage}}}';
563: return $result;
564: }
565:
566:
567: sub start_physnet {
568: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
569: my $bodytext = '/adm/includes/physnet.sty';
570: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
571: my $cbistyletext=&Apache::lonnet::getfile($location);
572:
573: %$style = (%$style,&Apache::style::styleparser($target,$cbistyletext));
574: $$parser['-1']->unget_token($token);
575: # if ( defined($$style{'physnet'}) ) {
576: # &Apache::lonxml::newparser($parser,\$$style{'physnet'});
577: # }
578: return "";
579: }
580:
581: sub end_physnet {
582: return '';
583: }
584:
585: sub start_standalone {
586: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
587: my $result='';
588: if ($target eq 'web' || $target eq 'webgrade') {
589: if ( $env{'request.course.id'} ) {
590: my $inside = &Apache::lonxml::get_all_text("/standalone",$parser,$style);
591: } else {
592: $result='<table bgcolor="#E1E1E1" border="2"><tr><td>';
593: }
594: }
595: return $result;
596: }
597:
598: sub end_standalone {
599: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
600: my $result='';
601: if ($target eq 'web' || $target eq 'webgrade' ) {
602: if ( $env{'request.course.id'} ) {
603: } else {
604: $result='</td></tr></table>';
605: }
606: }
607: return $result;
608: }
609:
610: sub start_comment {
611: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
612: my $result='';
613: if ($target eq 'edit') {
614: $result=&Apache::edit::tag_start($target,$token);
615: my $bodytext=&Apache::lonxml::get_all_text("/comment",$parser,$style);
616: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',80,4)
617: } elsif ( $target eq 'modified') {
618: $result=$token->[4].&Apache::edit::modifiedfield("/comment",$parser);
619: } elsif ( $target eq 'web' || $target eq 'tex' || $target eq 'grade' ||
620: $target eq 'answer' || $target eq 'meta' || $target eq 'analyze' ||
621: $target eq 'webgrade') {
622: #normally throw away comments
623: my $bodytext=&Apache::lonxml::get_all_text("/comment",$parser,$style);
624: }
625: return $result;
626: }
627:
628: sub end_comment {
629: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
630: if ($target eq 'edit' ) { return &Apache::edit::end_table(); }
631: return '';
632: }
633:
634:
635: sub xmlparse {
636: my ($string) = @_;
637: &Apache::lonxml::debug("xmlparse recursion starting with $string");
638: # Apache::run::evaluate does an 'eval' on the name of the subroutine
639: # if it detects something that looks like a subroutine, this ends up calling
640: # things without any arguments and since perl is nice enough to pass
641: # along the default arguments when you don't explicitly say no arguments
642: # if you call &xmlparse, it gets &xmlparse passed as it argument.
643: # Same thing soccurs with &chemparse.
644: if ($string eq '&xmlparse') { return '&xmlparse'; }
645: if ($string eq '&chemparse') { return '&chemparse'; }
646: my ($target,$token,$tagstack,$parstack,$oldparser,$safeeval,$style)=
647: @Apache::scripttag::parser_env;
648: my @parser;
649: &Apache::lonxml::newparser(\@parser,\$string);
650: &Apache::lonxml::startredirection();
651: my $result=&Apache::lonxml::inner_xmlparse($target,$tagstack,
652: $parstack,\@parser,
653: $safeeval,$style);
654: $result.=&Apache::lonxml::endredirection();
655: &Apache::lonxml::debug("target is $target xmlparse recursion ending with $result");
656: return $result;
657: }
658:
659: sub start_num {
660: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
661: my $result = '';
662: my $inside = &Apache::lonxml::get_all_text_unbalanced("/num",$parser);
663: if ($target eq 'tex' || $target eq 'web' || $target eq 'webgrade') {
664: $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
665: if (!$Apache::lonxml::default_homework_loaded) {
666: &Apache::lonxml::default_homework_load($safeeval);
667: }
668: @Apache::scripttag::parser_env = @_;
669: my $format=&Apache::lonxml::get_param('format',$parstack,$safeeval);
670: $result=&Apache::run::run("return &prettyprint(q\0$inside\0,q\0$format\0);",$safeeval);
671: }
672: return $result;
673: }
674:
675: sub end_num {
676: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
677: my $result = '';
678: return $result;
679: }
680:
681: sub start_parse {
682: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
683: my $result = '';
684: if ( $target eq 'web' || $target eq 'tex' ||
685: $target eq 'grade' || $target eq 'answer' ||
686: $target eq 'analyze'|| $target eq 'webgrade') {
687: my $inside = &Apache::lonxml::get_all_text_unbalanced("/parse",$parser);
688: $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
689: if (!$Apache::lonxml::default_homework_loaded) {
690: &Apache::lonxml::default_homework_load($safeeval);
691: }
692: @Apache::scripttag::parser_env = @_;
693: $result=&Apache::run::run("return &xmlparse(q\0$inside\0);",$safeeval);
694: if ($target eq 'grade' || $target eq 'answer' ||
695: $target eq 'analyze') {
696: # grade/answer/analyxe should produce no output but if we
697: # are redirecting, the redirecter should know what to do
698: # with the output
699: if (!$Apache::lonxml::redirection) { $result=''; }
700: }
701: }
702: return $result;
703: }
704:
705: sub end_parse {
706: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
707: my $result = '';
708: return $result;
709: }
710:
711: sub start_algebra {
712: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
713: my $result = '';
714: if ( $target eq 'web' || $target eq 'tex' ||
715: $target eq 'grade' || $target eq 'answer' ||
716: $target eq 'analyze' || $target eq 'webgrade') {
717: my $inside = &Apache::lonxml::get_all_text_unbalanced("/algebra",$parser);
718: $inside = &Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
719: if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
720: my $style=&Apache::lonxml::get_param('style',$parstack,$safeeval);
721: $result=&Apache::lontexconvert::algebra($inside,$target,$style,$parstack,$safeeval);
722: }
723: $Apache::lonxml::post_evaluate=0;
724: }
725: return $result;
726: }
727:
728: sub end_algebra {
729: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
730: my $result = '';
731: return $result;
732: }
733:
734: 1;
735: __END__
736:
737: =pod
738:
739: =head1 NAME
740:
741: Apache::scripttag.pm
742:
743: =head1 SYNOPSIS
744:
745: implements <script>, <scriptlib>, <parserlib>,
746: and <import>
747:
748: This is part of the LearningOnline Network with CAPA project
749: described at http://www.lon-capa.org.
750:
751: =cut
752:
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