1: # The LearningOnline Network with CAPA
2: # <script> definiton
3: #
4: # $Id: scripttag.pm,v 1.164 2011/12/23 19:38:01 www 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: }
130: }
131: return $result;
132: }
133:
134: sub end_script {
135: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
136: if ( $target eq "meta" ) { return ''; }
137: my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval);
138: my $result='';
139: #other script blocks need to survive
140: if ($type ne "loncapa/perl" && $target ne 'tex') {
141: return $token->[2];
142: } elsif ($target eq 'edit' ) {
143: return &Apache::edit::end_table();
144: } elsif ($target eq 'answer') {
145: $Apache::lonxml::evaluate++;
146: }
147: return '';
148: }
149:
150: sub start_display {
151: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
152: @Apache::scripttag::parser_env = @_;
153: my $result;
154:
155: if ( $target eq "modified" ) {
156: $result=$token->[4].&Apache::edit::modifiedfield("/display",$parser);
157: } elsif ( $target eq 'web' || $target eq 'tex' ||
158: $target eq 'grade' || $target eq 'webgrade' ||
159: $target eq 'answer' || $target eq 'analyze') {
160: my $bodytext=&Apache::lonxml::get_all_text_unbalanced("/display",$parser);
161: if (!$Apache::lonxml::default_homework_loaded) {
162: &Apache::lonxml::default_homework_load($safeeval);
163: }
164: $result=&Apache::run::run($bodytext,$safeeval);
165: if ($target eq 'grade' || $target eq 'answer' ||
166: $target eq 'analyze') {
167: # grade/answer/analyxe should produce no output but if we
168: # are redirecting, the redirecter should know what to do
169: # with the output
170: if (!$Apache::lonxml::redirection) { $result=''; }
171: }
172: $Apache::lonxml::post_evaluate=0;
173: } elsif ($target eq "edit" ) {
174: my $bodytext=&Apache::lonxml::get_all_text_unbalanced("/display",$parser);
175: #$result =
176: # "<br /> <$token->[1]> output: <br />$bodytext<br />Source:<br />";
177: #$result.=&Apache::edit::editfield($token->[1],$bodytext,'',40,1);
178: $result=&Apache::edit::tag_start($target,$token,'Script With Display');
179: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',80,1)
180: } elsif ($target eq 'meta') {
181: my $bodytext=&Apache::lonxml::get_all_text_unbalanced("/display",$parser);
182: }
183: return $result;
184: }
185:
186: sub end_display {
187: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
188: if ($target eq 'edit' ) { return &Apache::edit::end_table(); }
189: return '';
190: }
191:
192: sub start_scriptlib {
193: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
194: my $bodytext;
195: my $result ='';
196: my $error='';
197:
198: if ($target eq 'web' || $target eq 'tex' || $target eq 'grade' ||
199: $target eq 'meta' || $target eq 'edit' || $target eq 'answer' ||
200: $target eq 'analyze' || $target eq 'webgrade') {
201: $bodytext=$$parser[$#$parser]->get_text("/scriptlib");
202: $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
203: $$parstack[$#$parstack]);
204: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
205: $bodytext);
206: my $script=&Apache::lonnet::getfile($location);
207: if ($script == -1) {
208: if ($target eq 'edit') {
209: $error='</tr><tr><td>'.&mt('Errors').'</td><td colspan="2"><b>'.&mt(' Unable to find [_1]','<span class="LC_filename">'.$location.'</span>').'</b></td>'."\n";
210: } else {
211: &Apache::lonxml::error("<b> Unable to find <i>$location</i> for scriptlib</b>");
212: return "";
213: }
214: }
215: &Apache::run::run($script,$safeeval);
216: #&Apache::lonxml::debug("ran $bodytext:<br />".&Apache::lonnet::getfile($bodytext)."<br />");
217: }
218: if ($target eq "edit" ) {
219: $result=
220: &Apache::edit::tag_start($target,$token,'New Script Functions').
221: &Apache::edit::editline($token->[1],$bodytext,'scriptlib',40).
222: &Apache::edit::browse(undef,'textnode').
223: $error.'</td></tr>'.
224: &Apache::edit::end_table();
225: }
226: if ($target eq "modified" ) {
227: $result=$token->[4].&Apache::edit::modifiedfield("/scriptlib",$parser);
228: }
229: return $result;
230: }
231:
232: sub end_scriptlib {
233: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
234: my @result;
235: if ($target eq "edit" ) { $result[1]='no'; }
236: return @result;
237: }
238:
239: sub start_parserlib {
240: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
241: my $bodytext;
242: my $result ="";
243: my $error='';
244: if ($target eq 'web' || $target eq 'tex' || $target eq 'grade' ||
245: $target eq 'meta' || $target eq 'edit' || $target eq 'answer' ||
246: $target eq 'analyze' || $target eq 'webgrade') {
247: $bodytext=$$parser[$#$parser]->get_text("/parserlib");
248: $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
249: $$parstack[$#$parstack]);
250: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
251: $bodytext);
252: my $styletext=&Apache::lonnet::getfile($location);
253: #&Apache::lonxml::debug("found :$bodytext: in :$location: with :$styletext:");
254: if ($styletext == -1) {
255: if ($target eq 'edit') {
256: $error='</tr><tr><td>Errors</td><td colspan="2"><b> Unable to find <i>'.$location.'</i></b></td>'."\n";
257: } else {
258: &Apache::lonxml::error("<b> Unable to find <i>$location</i> for parserlib</b>");
259: return "";
260: }
261: }
262: %$style = ( %$style , &Apache::style::styleparser($target,$styletext));
263: }
264: if ($target eq "edit" ) {
265: $result=
266: &Apache::edit::tag_start($target,$token,'New Tag Definitions').
267: &Apache::edit::editline($token->[1],$bodytext,'',40).
268: $error.'</td></tr>'.
269: &Apache::edit::end_table();
270: }
271: if ($target eq "modified" ) {
272: $result=$token->[4].&Apache::edit::modifiedfield("/parserlib",$parser);
273: }
274: return $result;
275: }
276:
277: sub end_parserlib {
278: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
279: my @result;
280: if ($target eq "edit" ) { $result[1]='no'; }
281: return @result;
282: }
283:
284: sub start_window {
285: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
286: my $result = '';
287: if ($target eq 'web' || $target eq 'webgrade') {
288: &Apache::lonxml::startredirection;
289: } elsif ($target eq 'tex') {
290: my $printtext=&Apache::lonxml::get_param('printtext',$parstack,$safeeval);
291: if ($printtext=~/\w/) {
292: # If printtext is given, do not output any intervening information
293: &Apache::lonxml::startredirection;
294: } else {
295: $result = '\unskip\footnote{';
296: }
297: } elsif ($target eq 'edit') {
298: $result.=&Apache::edit::tag_start($target,$token);
299: $result.=&Apache::edit::text_arg('Text of Link:','linktext',$token,70);
300: $result.=&Apache::edit::text_arg('Height:','height',$token,5);
301: $result.=&Apache::edit::text_arg('Width:','width',$token,5);
302: $result.=&Apache::edit::text_arg('Printed text (optional):','printtext',$token,20);
303: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
304: } elsif ($target eq 'modified') {
305: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
306: $safeeval,'linktext',
307: 'width','height');
308: if ($constructtag) { $result=&Apache::edit::rebuild_tag($token); }
309: }
310: return $result;
311: }
312:
313: sub end_window {
314: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
315: my $result;
316: if ($target eq 'web' || $target eq 'webgrade') {
317: my $output=&Apache::lonxml::endredirection;
318: my $linktext= &Apache::lonxml::get_param('linktext',$parstack,$safeeval);
319: if (!$linktext) { $linktext='<sup>*</sup>'; }
320: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
321: if (!$width) { $width='500'; }
322: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
323: if (!$height) { $height='200'; }
324: $result=&Apache::loncommon::modal_adhoc_window
325: ("LONCAPA_newwindow_$Apache::lonxml::curdepth",$width,$height,$output,$linktext);
326: } elsif ($target eq 'tex') {
327: my $printtext=&Apache::lonxml::get_param('printtext',$parstack,$safeeval);
328: if ($printtext=~/\w/) {
329: # If a "printtext" is given, proceed to retrieve all intervening information and trash it
330: my $output=&Apache::lonxml::endredirection;
331: # Use printtext instead
332: $result=$printtext;
333: } else {
334: $result='}';
335: }
336: } else {
337: $result = '';
338: }
339: return $result;
340: }
341:
342:
343: sub start_windowlink {
344: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
345: my $result = '';
346: if ($target eq 'web' || $target eq 'webgrade') {
347: &Apache::lonxml::startredirection;
348: } elsif ($target eq 'edit') {
349: $result.=&Apache::edit::tag_start($target,$token);
350: $result.=&Apache::edit::text_arg('Link:','href',$token,70);
351: $result.=&Apache::edit::text_arg('Height:','height',$token,5);
352: $result.=&Apache::edit::text_arg('Width:','width',$token,5);
353: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
354: } elsif ($target eq 'modified') {
355: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
356: $safeeval,'href',
357: 'width','height');
358: if ($constructtag) { $result=&Apache::edit::rebuild_tag($token); }
359: }
360: return $result;
361: }
362:
363: sub end_windowlink {
364: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
365: my $result;
366: if ($target eq 'web' || $target eq 'webgrade') {
367: my $output=&Apache::lonxml::endredirection;
368: my $href= &Apache::lonxml::get_param('href',$parstack,$safeeval);
369: if (!$href) { $href='/adm/rat/empty.html'; }
370: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
371: if (!$width) { $width='500'; }
372: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
373: if (!$height) { $height='200'; }
374: $result=&Apache::loncommon::modal_link($href,$output,$width,$height);
375: } else {
376: $result = '';
377: }
378: return $result;
379: }
380:
381:
382: sub start_togglebox {
383: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
384: my $result = '';
385: if ($target eq 'web' || $target eq 'webgrade') {
386: my $id="LONCAPA_togglebox_$Apache::lonxml::curdepth";
387: my $heading=&Apache::lonxml::get_param('heading',$parstack,$safeeval);
388: unless ($heading) { $heading=''; } else { $heading.=' '; }
389: my $showtext=&Apache::lonxml::get_param('showtext',$parstack,$safeeval);
390: my $hidetext=&Apache::lonxml::get_param('hidetext',$parstack,$safeeval);
391: my $headerbg=&Apache::lonxml::get_param('headerbg',$parstack,$safeeval);
392: $result=&Apache::loncommon::start_togglebox($id,$heading,$headerbg,$hidetext,$showtext);
393: } elsif ($target eq 'tex') {
394: my $heading=&Apache::lonxml::get_param('heading',$parstack,$safeeval);
395: unless ($heading) { $heading=''; } else { $heading.=' '; }
396: $result = "\n\n".'\fbox{{\bf '.$heading.'} \qquad '."\n";
397: } elsif ($target eq 'edit') {
398: $result.=&Apache::edit::tag_start($target,$token);
399: $result.=&Apache::edit::text_arg('Heading:','heading',$token,70);
400: $result.=&Apache::edit::text_arg('Header Background:','headerbg',$token,7);
401: $result.=&Apache::edit::text_arg('Show text:','showtext',$token,10);
402: $result.=&Apache::edit::text_arg('Hide text:','hidetext',$token,10);
403: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
404: } elsif ($target eq 'modified') {
405: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
406: $safeeval,'heading',
407: 'showtext','hidetext',
408: 'headerbg','textbg');
409: if ($constructtag) { $result=&Apache::edit::rebuild_tag($token); }
410: }
411: return $result;
412: }
413:
414: sub end_togglebox {
415: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
416: my $result;
417: if ($target eq 'web' || $target eq 'webgrade') {
418: $result=&Apache::loncommon::end_togglebox();
419: } elsif ($target eq 'tex') {
420: $result = "}\n\n";
421: } else {
422: $result = '';
423: }
424: return $result;
425: }
426:
427:
428:
429: sub start_import {
430: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
431: my $bodytext=$$parser[$#$parser]->get_text("/import");
432: my $result ="";
433:
434: $bodytext=&Apache::run::evaluate($bodytext,$safeeval,$$parstack[$#$parstack]);
435:
436: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'grade'
437: || $target eq 'answer' || $target eq 'tex' || $target eq 'analyze' ) {
438: # FIXME this probably needs to be smart about construction vs.
439: # non construction space.
440: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
441: my $file=&Apache::lonnet::getfile($location);
442: if ($file == -1) {
443: &Apache::lonxml::error("<b> Unable to find <i>$bodytext as $location</i> for import</b>");
444: return "";
445: }
446: my $importmode=&Apache::lonxml::get_param('importmode',$parstack,$safeeval);
447: if (($importmode eq 'problem') || ($importmode eq 'part')) {
448: # We are using import to import published problems
449: if (($importmode eq 'problem') || ($file=~/<part[^<]*>/s)) {
450: # We explicitly don't want this to be a separate part or the problem already has parts
451: $file=~s/^\s*<problem>/<library>/s;
452: $file=~s/<\/problem>\s*$/<\/library>/s;
453: } else {
454: # We want this to be a separate part, but it currently is not
455: $file=~s/^\s*<problem>/<library><part>/s;
456: $file=~s/<\/problem>\s*$/<\/part><\/library>/s;
457: }
458: }
459: my $dir=$location;
460: $dir=~s:/[^/]*$::;
461: # &Apache::lonxml::debug("directory $dir $location file $file \n<b>END</b>\n");
462: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
463: if (!$id) { $id=$Apache::lonxml::curdepth; }
464: push(@Apache::inputtags::import,$id);
465: push(@Apache::inputtags::importlist,$id);
466:
467: &Apache::lonxml::newparser($parser,\$file,$dir);
468:
469: } elsif ($target eq "edit" ) {
470: $result.=&Apache::edit::tag_start($target,$token);
471: my $location=$token->[1];
472: $location=~s/^\s*//s;
473: $location=~s/\s*$//s;
474: $result.=&Apache::edit::editline($location,$bodytext,'',40);
475: $result.=&Apache::edit::browse(undef,'textnode');
476: $result.= ' <label>'.&mt('Import as:').
477: '<select name="importmode_'.$Apache::lonxml::curdepth.'">';
478: my %options=&Apache::lonlocal::texthash('' => 'as standard library',
479: 'problem' => 'as problem',
480: 'part' => 'as problem part(s)');
481: foreach my $option (sort(keys(%options))) {
482: $result.='<option value="'.$option.'"';
483: if ($option eq &Apache::lonxml::get_param('importmode',$parstack,$safeeval)) {
484: $result.=' selected="selected"';
485: }
486: $result.='>'.$options{$option}.'</option>';
487: }
488: $result.='</select></label>';
489: #FIXME this need to convert $bodytext to be a contruction space reference
490: #my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
491: #$result.="Click<a href=\"$location\">here</a> to edit<br />"
492: } elsif ($target eq 'modified') {
493: &Apache::edit::get_new_args($token,$parstack,$safeeval,'importmode');
494: $result='<import id="'.$token->[2]{'id'}.'" importmode="'.$token->[2]{'importmode'}.'">';
495: $result.=&Apache::edit::modifiedfield("/import",$parser);
496: } elsif ($target eq 'meta') {
497: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
498: $result.='<import part="'.$Apache::inputtags::part;
499: if ($id) {
500: $result.='" id="'.$id;
501: }
502: $result.='" importmode="'.$token->[2]{'importmode'}.'">';
503: $result.=$bodytext;
504: $result.='</import>';
505: }
506: return $result;
507: }
508:
509: sub end_import {
510: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
511: pop(@Apache::inputtags::import);
512: my $result;
513: if ($target eq 'edit' ) { $result=&Apache::edit::end_row.
514: &Apache::edit::end_table(); }
515: return $result;
516: }
517:
518: sub start_storetc {
519: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
520: my $result = '';
521: &Apache::lonxml::startredirection;
522: return $result;
523: }
524:
525: sub end_storetc {
526: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
527: my $result;
528: my $output=&Apache::lonxml::endredirection;
529: $output =~ s/\"/\"\;/g;
530: $result = '{\bf '.$output.'.}}\write\tcfile{\protect\tcpc{ '.$output.'.}{\the\value{relpage}}}';
531: return $result;
532: }
533:
534:
535: sub start_physnet {
536: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
537: my $bodytext = '/adm/includes/physnet.sty';
538: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
539: my $cbistyletext=&Apache::lonnet::getfile($location);
540:
541: %$style = (%$style,&Apache::style::styleparser($target,$cbistyletext));
542: $$parser['-1']->unget_token($token);
543: # if ( defined($$style{'physnet'}) ) {
544: # &Apache::lonxml::newparser($parser,\$$style{'physnet'});
545: # }
546: return "";
547: }
548:
549: sub end_physnet {
550: return '';
551: }
552:
553: sub start_standalone {
554: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
555: my $result='';
556: if ($target eq 'web' || $target eq 'webgrade') {
557: if ( $env{'request.course.id'} ) {
558: my $inside = &Apache::lonxml::get_all_text("/standalone",$parser,$style);
559: } else {
560: $result='<table bgcolor="#E1E1E1" border="2"><tr><td>';
561: }
562: }
563: return $result;
564: }
565:
566: sub end_standalone {
567: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
568: my $result='';
569: if ($target eq 'web' || $target eq 'webgrade' ) {
570: if ( $env{'request.course.id'} ) {
571: } else {
572: $result='</td></tr></table>';
573: }
574: }
575: return $result;
576: }
577:
578: sub start_comment {
579: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
580: my $result='';
581: if ($target eq 'edit') {
582: $result=&Apache::edit::tag_start($target,$token);
583: my $bodytext=&Apache::lonxml::get_all_text("/comment",$parser,$style);
584: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',80,4)
585: } elsif ( $target eq 'modified') {
586: $result=$token->[4].&Apache::edit::modifiedfield("/comment",$parser);
587: } elsif ( $target eq 'web' || $target eq 'tex' || $target eq 'grade' ||
588: $target eq 'answer' || $target eq 'meta' || $target eq 'analyze' ||
589: $target eq 'webgrade') {
590: #normally throw away comments
591: my $bodytext=&Apache::lonxml::get_all_text("/comment",$parser,$style);
592: }
593: return $result;
594: }
595:
596: sub end_comment {
597: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
598: if ($target eq 'edit' ) { return &Apache::edit::end_table(); }
599: return '';
600: }
601:
602:
603: sub xmlparse {
604: my ($string) = @_;
605: &Apache::lonxml::debug("xmlparse recursion starting with $string");
606: # Apache::run::evaluate does an 'eval' on the name of the subroutine
607: # if it detects something that looks like a subroutine, this ends up calling
608: # things without any arguments and since perl is nice enough to pass
609: # along the default arguments when you don't explicitly say no arguments
610: # if you call &xmlparse, it gets &xmlparse passed as it argument.
611: # Same thing soccurs with &chemparse.
612: if ($string eq '&xmlparse') { return '&xmlparse'; }
613: if ($string eq '&chemparse') { return '&chemparse'; }
614: my ($target,$token,$tagstack,$parstack,$oldparser,$safeeval,$style)=
615: @Apache::scripttag::parser_env;
616: my @parser;
617: &Apache::lonxml::newparser(\@parser,\$string);
618: &Apache::lonxml::startredirection();
619: my $result=&Apache::lonxml::inner_xmlparse($target,$tagstack,
620: $parstack,\@parser,
621: $safeeval,$style);
622: $result.=&Apache::lonxml::endredirection();
623: &Apache::lonxml::debug("target is $target xmlparse recursion ending with $result");
624: return $result;
625: }
626:
627: sub start_num {
628: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
629: my $result = '';
630: my $inside = &Apache::lonxml::get_all_text_unbalanced("/num",$parser);
631: if ($target eq 'tex' || $target eq 'web' || $target eq 'webgrade') {
632: $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
633: if (!$Apache::lonxml::default_homework_loaded) {
634: &Apache::lonxml::default_homework_load($safeeval);
635: }
636: @Apache::scripttag::parser_env = @_;
637: my $format=&Apache::lonxml::get_param('format',$parstack,$safeeval);
638: $result=&Apache::run::run("return &prettyprint(q\0$inside\0,q\0$format\0);",$safeeval);
639: }
640: return $result;
641: }
642:
643: sub end_num {
644: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
645: my $result = '';
646: return $result;
647: }
648:
649: sub start_parse {
650: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
651: my $result = '';
652: if ( $target eq 'web' || $target eq 'tex' ||
653: $target eq 'grade' || $target eq 'answer' ||
654: $target eq 'analyze'|| $target eq 'webgrade') {
655: my $inside = &Apache::lonxml::get_all_text_unbalanced("/parse",$parser);
656: $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
657: if (!$Apache::lonxml::default_homework_loaded) {
658: &Apache::lonxml::default_homework_load($safeeval);
659: }
660: @Apache::scripttag::parser_env = @_;
661: $result=&Apache::run::run("return &xmlparse(q\0$inside\0);",$safeeval);
662: if ($target eq 'grade' || $target eq 'answer' ||
663: $target eq 'analyze') {
664: # grade/answer/analyxe should produce no output but if we
665: # are redirecting, the redirecter should know what to do
666: # with the output
667: if (!$Apache::lonxml::redirection) { $result=''; }
668: }
669: }
670: return $result;
671: }
672:
673: sub end_parse {
674: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
675: my $result = '';
676: return $result;
677: }
678:
679: sub start_algebra {
680: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
681: my $result = '';
682: if ( $target eq 'web' || $target eq 'tex' ||
683: $target eq 'grade' || $target eq 'answer' ||
684: $target eq 'analyze' || $target eq 'webgrade') {
685: my $inside = &Apache::lonxml::get_all_text_unbalanced("/algebra",$parser);
686: $inside = &Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
687: if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
688: my $style=&Apache::lonxml::get_param('style',$parstack,$safeeval);
689: $result=&Apache::lontexconvert::algebra($inside,$target,$style,$parstack,$safeeval);
690: }
691: $Apache::lonxml::post_evaluate=0;
692: }
693: return $result;
694: }
695:
696: sub end_algebra {
697: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
698: my $result = '';
699: return $result;
700: }
701:
702: 1;
703: __END__
704:
705: =pod
706:
707: =head1 NAME
708:
709: Apache::scripttag.pm
710:
711: =head1 SYNOPSIS
712:
713: implements <script>, <scriptlib>, <parserlib>,
714: and <import>
715:
716: This is part of the LearningOnline Network with CAPA project
717: described at http://www.lon-capa.org.
718:
719: =cut
720:
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