File:
[LON-CAPA] /
loncom /
xml /
scripttag.pm
Revision
1.168:
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Mon Sep 30 13:44:16 2013 UTC (10 years, 10 months ago) by
raeburn
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MAIN
CVS tags:
HEAD
- Access to dependencies/links in HTML files uploaded directly to a course,
where dependency or linked item was also uploaded directly to the same
course.
- Fix regexp used to identify items referenced in javascript object in text
within <script></script>.
- .js files in src attribute of <script> tag still retrieved, even if
(type ="text/javascript" is missing) i.e., not valid xhtml.
1: # The LearningOnline Network with CAPA
2: # <script> definiton
3: #
4: # $Id: scripttag.pm,v 1.168 2013/09/30 13:44:16 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::lonxml();
35: use Apache::londefdef();
36: use Apache::style();
37:
38: #Globals
39: # this used to pass around the standard callsub arguments to a tag func
40: # so xmlparse can reenter the inner_xmlparse loop.
41:
42: @Apache::scripttag::parser_env = ();
43: BEGIN {
44: &Apache::lonxml::register('Apache::scripttag',
45: ('script','scriptlib','parserlib','import',
46: 'window','windowlink','togglebox','display','storetc','physnet',
47: 'standalone','comment','num','parse','algebra',
48: 'LONCAPA_INTERNAL_TURN_STYLE_ON',
49: 'LONCAPA_INTERNAL_TURN_STYLE_OFF'));
50: }
51:
52: sub start_LONCAPA_INTERNAL_TURN_STYLE_ON {
53: $Apache::lonxml::usestyle=1;
54: $Apache::lonxml::style_values='';
55: return ('','no');
56: }
57:
58: sub end_LONCAPA_INTERNAL_TURN_STYLE_ON {
59: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
60: my $end=&Apache::lonxml::get_param('end',$parstack,$safeeval);
61: if (defined($end)) {
62: &Apache::lonxml::end_tag($tagstack,$parstack,$token);
63: }
64: return ('','no');
65: }
66:
67: sub start_LONCAPA_INTERNAL_TURN_STYLE_OFF {
68: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
69: $Apache::lonxml::usestyle=0;
70: my $end=&Apache::lonxml::get_param('end',$parstack,$safeeval);
71: if (!$end) {
72: $Apache::lonxml::style_values=$$parstack[-1];
73: $Apache::lonxml::style_end_values=$$parstack[-1];
74: } else {
75: $Apache::lonxml::style_values=$Apache::lonxml::style_end_values;
76: $Apache::lonxml::style_end_values='';
77: }
78: return ('','no');
79: }
80:
81: sub end_LONCAPA_INTERNAL_TURN_STYLE_OFF {
82: return ('','no');
83: }
84:
85: sub start_script {
86: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
87: @Apache::scripttag::parser_env = @_;
88: my $result='';
89: my $type= &Apache::lonxml::get_param('type',$parstack,$safeeval);
90: &Apache::lonxml::debug("found type of $type");
91: if ($type eq "loncapa/perl") {
92: if ( $target eq "modified" ) {
93: $result=$token->[4].&Apache::edit::modifiedfield('/script',$parser);
94: } elsif ( $target eq 'web' || $target eq 'tex' ||
95: $target eq 'grade' || $target eq 'webgrade' ||
96: $target eq 'answer' || $target eq 'analyze' ) {
97: my $bodytext=&Apache::lonxml::get_all_text_unbalanced("/script",$parser);
98: if (!$Apache::lonxml::default_homework_loaded) {
99: &Apache::lonxml::default_homework_load($safeeval);
100: }
101: &Apache::run::run($bodytext,$safeeval);
102: if (($target eq 'answer') &&
103: ($env{'form.answer_output_mode'} ne 'tex') &&
104: ($Apache::lonhomework::viewgrades == 'F')) {
105: $Apache::lonxml::evaluate--;
106: my (undef,undef,$udom,$uname)=&Apache::lonnet::whichuser();
107: $uname =~s/\W//g;
108: $udom =~s/\W//g;
109: my $function_name =
110: join('_','LONCAPA_scriptvars',$uname,$udom,
111: $env{'form.counter'},$Apache::lonxml::curdepth);
112: &Apache::lonxml::add_script_result(
113: &Apache::loncommon::modal_adhoc_window($function_name,500,500,
114: '<pre style="background-color:#ffffff;">'.
115: &Apache::run::dump($target,$safeeval).'</pre>',
116: &mt('Script Vars'))."<br />");
117: }
118: } elsif ($target eq "edit" ) {
119: #&Apache::run::run($bodytext,$safeeval);
120: #$result="<br /> <$token->[1]> output: <br />$bodytext<br />Source:<br />";
121: my $bodytext=&Apache::lonxml::get_all_text_unbalanced("/script",$parser);
122: $result=&Apache::edit::tag_start($target,$token,'Script');
123: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',80,4);
124: } elsif ($target eq 'meta') {
125: my $bodytext=&Apache::lonxml::get_all_text_unbalanced("/script",$parser);
126: }
127: } else {
128: my $bodytext=&Apache::lonxml::get_all_text_unbalanced("/script",$parser);
129: if ($target ne "meta" && $target ne 'tex' && $target ne 'answer') {
130: $result = $token->[4];
131: $result.=$bodytext;
132: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
133: my $url=&Apache::lonnet::hreflocation('',$env{'request.filename'});
134: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
135: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
136: if ($src ne '') {
137: if ($src !~ m{^(/|https?://)}) {
138: my $cleanhref = &Apache::londefdef::clean_docs_httpref($src,$url,$cdom,$cnum);
139: if ($cleanhref) {
140: &Apache::lonxml::extlink($cleanhref);
141: }
142: }
143: } elsif (($type eq 'text/javascript') && ($bodytext ne '')) {
144: if ($url =~ m{^\Q/uploaded/$cdom/$cnum/docs/\E}) {
145: if ($bodytext =~ m{\.set\w+(Src|Swf)\(["']}i) {
146: my @srcs = split(/\.set/,$bodytext);
147: if (scalar(@srcs) > 1) {
148: foreach my $item (@srcs) {
149: if ($item =~ m{^(FlashPlayerSwf|MediaSrc|XMPSrc|ConfigurationSrc|PosterImageSrc)\((['"])(?:(?!\2).)+\2\)}is) {
150: my $srctype = $1;
151: my $quote = $2;
152:
153: my ($fname) = ($item =~ m{^\Q$srctype($quote\E([^$quote]+)\Q$quote)\E});
154: my $cleanhref = &Apache::londefdef::clean_docs_httpref($fname,$url,$cdom,$cnum);
155: if ($cleanhref) {
156: &Apache::lonxml::extlink($cleanhref);
157: }
158: }
159: }
160: }
161: }
162: }
163: }
164: }
165: }
166: return $result;
167: }
168:
169: sub end_script {
170: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
171: if ( $target eq "meta" ) { return ''; }
172: my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval);
173: my $result='';
174: #other script blocks need to survive
175: if ($type ne "loncapa/perl" && $target ne 'tex') {
176: return $token->[2];
177: } elsif ($target eq 'edit' ) {
178: return &Apache::edit::end_table();
179: } elsif ($target eq 'answer') {
180: $Apache::lonxml::evaluate++;
181: }
182: return '';
183: }
184:
185: sub start_display {
186: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
187: @Apache::scripttag::parser_env = @_;
188: my $result;
189:
190: if ( $target eq "modified" ) {
191: $result=$token->[4].&Apache::edit::modifiedfield("/display",$parser);
192: } elsif ( $target eq 'web' || $target eq 'tex' ||
193: $target eq 'grade' || $target eq 'webgrade' ||
194: $target eq 'answer' || $target eq 'analyze') {
195: my $bodytext=&Apache::lonxml::get_all_text_unbalanced("/display",$parser);
196: if (!$Apache::lonxml::default_homework_loaded) {
197: &Apache::lonxml::default_homework_load($safeeval);
198: }
199: $result=&Apache::run::run($bodytext,$safeeval);
200: if ($target eq 'grade' || $target eq 'answer' ||
201: $target eq 'analyze') {
202: # grade/answer/analyxe should produce no output but if we
203: # are redirecting, the redirecter should know what to do
204: # with the output
205: if (!$Apache::lonxml::redirection) { $result=''; }
206: }
207: $Apache::lonxml::post_evaluate=0;
208: } elsif ($target eq "edit" ) {
209: my $bodytext=&Apache::lonxml::get_all_text_unbalanced("/display",$parser);
210: #$result =
211: # "<br /> <$token->[1]> output: <br />$bodytext<br />Source:<br />";
212: #$result.=&Apache::edit::editfield($token->[1],$bodytext,'',40,1);
213: $result=&Apache::edit::tag_start($target,$token,'Script With Display');
214: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',80,1)
215: } elsif ($target eq 'meta') {
216: my $bodytext=&Apache::lonxml::get_all_text_unbalanced("/display",$parser);
217: }
218: return $result;
219: }
220:
221: sub end_display {
222: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
223: if ($target eq 'edit' ) { return &Apache::edit::end_table(); }
224: return '';
225: }
226:
227: sub start_scriptlib {
228: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
229: my $bodytext;
230: my $result ='';
231: my $error='';
232:
233: if ($target eq 'web' || $target eq 'tex' || $target eq 'grade' ||
234: $target eq 'meta' || $target eq 'edit' || $target eq 'answer' ||
235: $target eq 'analyze' || $target eq 'webgrade') {
236: $bodytext=$$parser[$#$parser]->get_text("/scriptlib");
237: $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
238: $$parstack[$#$parstack]);
239: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
240: $bodytext);
241: my $script=&Apache::lonnet::getfile($location);
242: if ($script == -1) {
243: if ($target eq 'edit') {
244: $error='</tr><tr><td>'.&mt('Errors').'</td><td colspan="2"><b>'.&mt(' Unable to find [_1]','<span class="LC_filename">'.$location.'</span>').'</b></td>'."\n";
245: } else {
246: &Apache::lonxml::error("<b> Unable to find <i>$location</i> for scriptlib</b>");
247: return "";
248: }
249: }
250: &Apache::run::run($script,$safeeval);
251: #&Apache::lonxml::debug("ran $bodytext:<br />".&Apache::lonnet::getfile($bodytext)."<br />");
252: }
253: if ($target eq "edit" ) {
254: $result=
255: &Apache::edit::tag_start($target,$token,'New Script Functions').
256: &Apache::edit::editline($token->[1],$bodytext,'scriptlib',40).
257: &Apache::edit::browse(undef,'textnode').
258: $error.'</td></tr>'.
259: &Apache::edit::end_table();
260: }
261: if ($target eq "modified" ) {
262: $result=$token->[4].&Apache::edit::modifiedfield("/scriptlib",$parser);
263: }
264: return $result;
265: }
266:
267: sub end_scriptlib {
268: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
269: my @result;
270: if ($target eq "edit" ) { $result[1]='no'; }
271: return @result;
272: }
273:
274: sub start_parserlib {
275: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
276: my $bodytext;
277: my $result ="";
278: my $error='';
279: if ($target eq 'web' || $target eq 'tex' || $target eq 'grade' ||
280: $target eq 'meta' || $target eq 'edit' || $target eq 'answer' ||
281: $target eq 'analyze' || $target eq 'webgrade') {
282: $bodytext=$$parser[$#$parser]->get_text("/parserlib");
283: $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
284: $$parstack[$#$parstack]);
285: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
286: $bodytext);
287: my $styletext=&Apache::lonnet::getfile($location);
288: #&Apache::lonxml::debug("found :$bodytext: in :$location: with :$styletext:");
289: if ($styletext == -1) {
290: if ($target eq 'edit') {
291: $error='</tr><tr><td>Errors</td><td colspan="2"><b> Unable to find <i>'.$location.'</i></b></td>'."\n";
292: } else {
293: &Apache::lonxml::error("<b> Unable to find <i>$location</i> for parserlib</b>");
294: return "";
295: }
296: }
297: %$style = ( %$style , &Apache::style::styleparser($target,$styletext));
298: }
299: if ($target eq "edit" ) {
300: $result=
301: &Apache::edit::tag_start($target,$token,'New Tag Definitions').
302: &Apache::edit::editline($token->[1],$bodytext,'',40).
303: $error.'</td></tr>'.
304: &Apache::edit::end_table();
305: }
306: if ($target eq "modified" ) {
307: $result=$token->[4].&Apache::edit::modifiedfield("/parserlib",$parser);
308: }
309: return $result;
310: }
311:
312: sub end_parserlib {
313: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
314: my @result;
315: if ($target eq "edit" ) { $result[1]='no'; }
316: return @result;
317: }
318:
319: sub start_window {
320: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
321: my $result = '';
322: if ($target eq 'web' || $target eq 'webgrade') {
323: &Apache::lonxml::startredirection;
324: } elsif ($target eq 'tex') {
325: my $printtext=&Apache::lonxml::get_param('printtext',$parstack,$safeeval);
326: if ($printtext=~/\w/) {
327: # If printtext is given, do not output any intervening information
328: &Apache::lonxml::startredirection;
329: } else {
330: $result = '\unskip\footnote{';
331: }
332: } elsif ($target eq 'edit') {
333: $result.=&Apache::edit::tag_start($target,$token);
334: $result.=&Apache::edit::text_arg('Text of Link:','linktext',$token,70);
335: $result.=&Apache::edit::text_arg('Height:','height',$token,5);
336: $result.=&Apache::edit::text_arg('Width:','width',$token,5);
337: $result.=&Apache::edit::text_arg('Printed text (optional):','printtext',$token,20);
338: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
339: } elsif ($target eq 'modified') {
340: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
341: $safeeval,'linktext',
342: 'width','height');
343: if ($constructtag) { $result=&Apache::edit::rebuild_tag($token); }
344: }
345: return $result;
346: }
347:
348: sub end_window {
349: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
350: my $result;
351: if ($target eq 'web' || $target eq 'webgrade') {
352: my $output=&Apache::lonxml::endredirection;
353: my $linktext= &Apache::lonxml::get_param('linktext',$parstack,$safeeval);
354: if (!$linktext) { $linktext='<sup>*</sup>'; }
355: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
356: if (!$width) { $width='500'; }
357: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
358: if (!$height) { $height='200'; }
359: $result=&Apache::loncommon::modal_adhoc_window
360: ("LONCAPA_newwindow_$Apache::lonxml::curdepth",$width,$height,$output,$linktext);
361: } elsif ($target eq 'tex') {
362: my $printtext=&Apache::lonxml::get_param('printtext',$parstack,$safeeval);
363: if ($printtext=~/\w/) {
364: # If a "printtext" is given, proceed to retrieve all intervening information and trash it
365: my $output=&Apache::lonxml::endredirection;
366: # Use printtext instead
367: $result=$printtext;
368: } else {
369: $result='}';
370: }
371: } else {
372: $result = '';
373: }
374: return $result;
375: }
376:
377:
378: sub start_windowlink {
379: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
380: my $result = '';
381: if ($target eq 'web' || $target eq 'webgrade') {
382: &Apache::lonxml::startredirection;
383: } elsif ($target eq 'edit') {
384: $result.=&Apache::edit::tag_start($target,$token);
385: $result.=&Apache::edit::text_arg('Link:','href',$token,70);
386: $result.=&Apache::edit::text_arg('Height:','height',$token,5);
387: $result.=&Apache::edit::text_arg('Width:','width',$token,5);
388: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
389: } elsif ($target eq 'modified') {
390: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
391: $safeeval,'href',
392: 'width','height');
393: if ($constructtag) { $result=&Apache::edit::rebuild_tag($token); }
394: }
395: return $result;
396: }
397:
398: sub end_windowlink {
399: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
400: my $result;
401: if ($target eq 'web' || $target eq 'webgrade') {
402: my $output=&Apache::lonxml::endredirection;
403: my $href= &Apache::lonxml::get_param('href',$parstack,$safeeval);
404: if (!$href) { $href='/adm/rat/empty.html'; }
405: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
406: if (!$width) { $width='500'; }
407: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
408: if (!$height) { $height='200'; }
409: $result=&Apache::loncommon::modal_link($href,$output,$width,$height);
410: } else {
411: $result = '';
412: }
413: return $result;
414: }
415:
416:
417: sub start_togglebox {
418: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
419: my $result = '';
420: if ($target eq 'web' || $target eq 'webgrade') {
421: my $id="LONCAPA_togglebox_$Apache::lonxml::curdepth";
422: my $heading=&Apache::lonxml::get_param('heading',$parstack,$safeeval);
423: unless ($heading) { $heading=''; } else { $heading.=' '; }
424: my $showtext=&Apache::lonxml::get_param('showtext',$parstack,$safeeval);
425: my $hidetext=&Apache::lonxml::get_param('hidetext',$parstack,$safeeval);
426: my $headerbg=&Apache::lonxml::get_param('headerbg',$parstack,$safeeval);
427: $result=&Apache::loncommon::start_togglebox($id,$heading,$headerbg,$hidetext,$showtext);
428: } elsif ($target eq 'tex') {
429: my $heading=&Apache::lonxml::get_param('heading',$parstack,$safeeval);
430: unless ($heading) { $heading=''; } else { $heading.=' '; }
431: $result = "\n\n".'\fbox{{\bf '.$heading.'} \qquad '."\n";
432: } elsif ($target eq 'edit') {
433: $result.=&Apache::edit::tag_start($target,$token);
434: $result.=&Apache::edit::text_arg('Heading:','heading',$token,70);
435: $result.=&Apache::edit::text_arg('Header Background:','headerbg',$token,7);
436: $result.=&Apache::edit::text_arg('Show text:','showtext',$token,10);
437: $result.=&Apache::edit::text_arg('Hide text:','hidetext',$token,10);
438: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
439: } elsif ($target eq 'modified') {
440: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
441: $safeeval,'heading',
442: 'showtext','hidetext',
443: 'headerbg','textbg');
444: if ($constructtag) { $result=&Apache::edit::rebuild_tag($token); }
445: }
446: return $result;
447: }
448:
449: sub end_togglebox {
450: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
451: my $result;
452: if ($target eq 'web' || $target eq 'webgrade') {
453: $result=&Apache::loncommon::end_togglebox();
454: } elsif ($target eq 'tex') {
455: $result = "}\n\n";
456: } else {
457: $result = '';
458: }
459: return $result;
460: }
461:
462:
463:
464: sub start_import {
465: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
466: my $bodytext=$$parser[$#$parser]->get_text("/import");
467: my $result ="";
468:
469: $bodytext=&Apache::run::evaluate($bodytext,$safeeval,$$parstack[$#$parstack]);
470:
471: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'grade'
472: || $target eq 'answer' || $target eq 'tex' || $target eq 'analyze' ) {
473: # FIXME this probably needs to be smart about construction vs.
474: # non construction space.
475: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
476: my $file=&Apache::lonnet::getfile($location);
477: if ($file == -1) {
478: &Apache::lonxml::error("<b> Unable to find <i>$bodytext as $location</i> for import</b>");
479: return "";
480: }
481: my $importmode=&Apache::lonxml::get_param('importmode',$parstack,$safeeval);
482: if (($importmode eq 'problem') || ($importmode eq 'part')) {
483: # We are using import to import published problems
484: if (($importmode eq 'problem') || ($file=~/<part[^<]*>/s)) {
485: # We explicitly don't want this to be a separate part or the problem already has parts
486: $file=~s/^\s*<problem>/<library>/s;
487: $file=~s/<\/problem>\s*$/<\/library>/s;
488: } else {
489: # We want this to be a separate part, but it currently is not
490: $file=~s/^\s*<problem>/<library><part>/s;
491: $file=~s/<\/problem>\s*$/<\/part><\/library>/s;
492: }
493: }
494: my $dir=$location;
495: $dir=~s:/[^/]*$::;
496: # &Apache::lonxml::debug("directory $dir $location file $file \n<b>END</b>\n");
497: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
498: if (!$id) { $id=$Apache::lonxml::curdepth; }
499: push(@Apache::inputtags::import,$id);
500: push(@Apache::inputtags::importlist,$id);
501:
502: &Apache::lonxml::newparser($parser,\$file,$dir);
503:
504: } elsif ($target eq "edit" ) {
505: $result.=&Apache::edit::tag_start($target,$token);
506: my $location=$token->[1];
507: $location=~s/^\s*//s;
508: $location=~s/\s*$//s;
509: $result.=&Apache::edit::editline($location,$bodytext,'',40);
510: $result.=&Apache::edit::browse(undef,'textnode');
511: $result.= ' <label>'.&mt('Import as:').
512: '<select name="importmode_'.$Apache::lonxml::curdepth.'">';
513: my %options=&Apache::lonlocal::texthash('' => 'as standard library',
514: 'problem' => 'as problem',
515: 'part' => 'as problem part(s)');
516: foreach my $option (sort(keys(%options))) {
517: $result.='<option value="'.$option.'"';
518: if ($option eq &Apache::lonxml::get_param('importmode',$parstack,$safeeval)) {
519: $result.=' selected="selected"';
520: }
521: $result.='>'.$options{$option}.'</option>';
522: }
523: $result.='</select></label>';
524: #FIXME this need to convert $bodytext to be a contruction space reference
525: #my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
526: #$result.="Click<a href=\"$location\">here</a> to edit<br />"
527: } elsif ($target eq 'modified') {
528: &Apache::edit::get_new_args($token,$parstack,$safeeval,'importmode');
529: $result='<import id="'.$token->[2]{'id'}.'" importmode="'.$token->[2]{'importmode'}.'">';
530: $result.=&Apache::edit::modifiedfield("/import",$parser);
531: } elsif ($target eq 'meta') {
532: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
533: $result.='<import part="'.$Apache::inputtags::part;
534: if ($id) {
535: $result.='" id="'.$id;
536: }
537: $result.='" importmode="'.$token->[2]{'importmode'}.'">';
538: $result.=$bodytext;
539: $result.='</import>';
540: }
541: return $result;
542: }
543:
544: sub end_import {
545: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
546: pop(@Apache::inputtags::import);
547: my $result;
548: if ($target eq 'edit' ) { $result=&Apache::edit::end_row.
549: &Apache::edit::end_table(); }
550: return $result;
551: }
552:
553: sub start_storetc {
554: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
555: my $result = '';
556: &Apache::lonxml::startredirection;
557: return $result;
558: }
559:
560: sub end_storetc {
561: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
562: my $result;
563: my $output=&Apache::lonxml::endredirection;
564: $output =~ s/\"/\"\;/g;
565: $result = '{\bf '.$output.'.}}\write\tcfile{\protect\tcpc{ '.$output.'.}{\the\value{relpage}}}';
566: return $result;
567: }
568:
569:
570: sub start_physnet {
571: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
572: my $bodytext = '/adm/includes/physnet.sty';
573: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
574: my $cbistyletext=&Apache::lonnet::getfile($location);
575:
576: %$style = (%$style,&Apache::style::styleparser($target,$cbistyletext));
577: $$parser['-1']->unget_token($token);
578: # if ( defined($$style{'physnet'}) ) {
579: # &Apache::lonxml::newparser($parser,\$$style{'physnet'});
580: # }
581: return "";
582: }
583:
584: sub end_physnet {
585: return '';
586: }
587:
588: sub start_standalone {
589: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
590: my $result='';
591: if ($target eq 'web' || $target eq 'webgrade') {
592: if ( $env{'request.course.id'} ) {
593: my $inside = &Apache::lonxml::get_all_text("/standalone",$parser,$style);
594: } else {
595: $result='<table bgcolor="#E1E1E1" border="2"><tr><td>';
596: }
597: }
598: return $result;
599: }
600:
601: sub end_standalone {
602: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
603: my $result='';
604: if ($target eq 'web' || $target eq 'webgrade' ) {
605: if ( $env{'request.course.id'} ) {
606: } else {
607: $result='</td></tr></table>';
608: }
609: }
610: return $result;
611: }
612:
613: sub start_comment {
614: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
615: my $result='';
616: if ($target eq 'edit') {
617: $result=&Apache::edit::tag_start($target,$token);
618: my $bodytext=&Apache::lonxml::get_all_text("/comment",$parser,$style);
619: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',80,4)
620: } elsif ( $target eq 'modified') {
621: $result=$token->[4].&Apache::edit::modifiedfield("/comment",$parser);
622: } elsif ( $target eq 'web' || $target eq 'tex' || $target eq 'grade' ||
623: $target eq 'answer' || $target eq 'meta' || $target eq 'analyze' ||
624: $target eq 'webgrade') {
625: #normally throw away comments
626: my $bodytext=&Apache::lonxml::get_all_text("/comment",$parser,$style);
627: }
628: return $result;
629: }
630:
631: sub end_comment {
632: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
633: if ($target eq 'edit' ) { return &Apache::edit::end_table(); }
634: return '';
635: }
636:
637:
638: sub xmlparse {
639: my ($string) = @_;
640: &Apache::lonxml::debug("xmlparse recursion starting with $string");
641: # Apache::run::evaluate does an 'eval' on the name of the subroutine
642: # if it detects something that looks like a subroutine, this ends up calling
643: # things without any arguments and since perl is nice enough to pass
644: # along the default arguments when you don't explicitly say no arguments
645: # if you call &xmlparse, it gets &xmlparse passed as it argument.
646: # Same thing soccurs with &chemparse.
647: if ($string eq '&xmlparse') { return '&xmlparse'; }
648: if ($string eq '&chemparse') { return '&chemparse'; }
649: my ($target,$token,$tagstack,$parstack,$oldparser,$safeeval,$style)=
650: @Apache::scripttag::parser_env;
651: my @parser;
652: &Apache::lonxml::newparser(\@parser,\$string);
653: &Apache::lonxml::startredirection();
654: my $result=&Apache::lonxml::inner_xmlparse($target,$tagstack,
655: $parstack,\@parser,
656: $safeeval,$style);
657: $result.=&Apache::lonxml::endredirection();
658: &Apache::lonxml::debug("target is $target xmlparse recursion ending with $result");
659: return $result;
660: }
661:
662: sub start_num {
663: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
664: my $result = '';
665: my $inside = &Apache::lonxml::get_all_text_unbalanced("/num",$parser);
666: if ($target eq 'tex' || $target eq 'web' || $target eq 'webgrade') {
667: $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
668: if (!$Apache::lonxml::default_homework_loaded) {
669: &Apache::lonxml::default_homework_load($safeeval);
670: }
671: @Apache::scripttag::parser_env = @_;
672: my $format=&Apache::lonxml::get_param('format',$parstack,$safeeval);
673: $result=&Apache::run::run("return &prettyprint(q\0$inside\0,q\0$format\0);",$safeeval);
674: }
675: return $result;
676: }
677:
678: sub end_num {
679: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
680: my $result = '';
681: return $result;
682: }
683:
684: sub start_parse {
685: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
686: my $result = '';
687: if ( $target eq 'web' || $target eq 'tex' ||
688: $target eq 'grade' || $target eq 'answer' ||
689: $target eq 'analyze'|| $target eq 'webgrade') {
690: my $inside = &Apache::lonxml::get_all_text_unbalanced("/parse",$parser);
691: $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
692: if (!$Apache::lonxml::default_homework_loaded) {
693: &Apache::lonxml::default_homework_load($safeeval);
694: }
695: @Apache::scripttag::parser_env = @_;
696: $result=&Apache::run::run("return &xmlparse(q\0$inside\0);",$safeeval);
697: if ($target eq 'grade' || $target eq 'answer' ||
698: $target eq 'analyze') {
699: # grade/answer/analyxe should produce no output but if we
700: # are redirecting, the redirecter should know what to do
701: # with the output
702: if (!$Apache::lonxml::redirection) { $result=''; }
703: }
704: }
705: return $result;
706: }
707:
708: sub end_parse {
709: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
710: my $result = '';
711: return $result;
712: }
713:
714: sub start_algebra {
715: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
716: my $result = '';
717: if ( $target eq 'web' || $target eq 'tex' ||
718: $target eq 'grade' || $target eq 'answer' ||
719: $target eq 'analyze' || $target eq 'webgrade') {
720: my $inside = &Apache::lonxml::get_all_text_unbalanced("/algebra",$parser);
721: $inside = &Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
722: if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
723: my $style=&Apache::lonxml::get_param('style',$parstack,$safeeval);
724: $result=&Apache::lontexconvert::algebra($inside,$target,$style,$parstack,$safeeval);
725: }
726: $Apache::lonxml::post_evaluate=0;
727: }
728: return $result;
729: }
730:
731: sub end_algebra {
732: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
733: my $result = '';
734: return $result;
735: }
736:
737: 1;
738: __END__
739:
740: =pod
741:
742: =head1 NAME
743:
744: Apache::scripttag.pm
745:
746: =head1 SYNOPSIS
747:
748: implements <script>, <scriptlib>, <parserlib>,
749: and <import>
750:
751: This is part of the LearningOnline Network with CAPA project
752: described at http://www.lon-capa.org.
753:
754: =cut
755:
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