1: # The LearningOnline Network with CAPA
2: # <script> definiton
3: #
4: # $Id: scripttag.pm,v 1.172.2.1 2015/04/06 16:55:46 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/\E(docs|supplemental)/}) {
145: if ($bodytext =~ m{\.addMediaSrc\((["'])((?!\1).)+\1\);}) {
146: my $quote = $1;
147: if ($bodytext =~ m{\Q.addMediaSrc($quote\E([^$quote]+)\Q$quote)\E}) {
148: my $fname = $1;
149: my $cleanhref =
150: &Apache::londefdef::clean_docs_httpref($fname,$url,$cdom,$cnum);
151: if ($cleanhref) {
152: &Apache::lonxml::extlink($cleanhref);
153: }
154: }
155: }
156: if ($bodytext =~ m{\.set\w+(Src|Swf)\(["']}i) {
157: my @srcs = split(/\.set/,$bodytext);
158: if (scalar(@srcs) > 1) {
159: foreach my $item (@srcs) {
160: if ($item =~ m{^(FlashPlayerSwf|MediaSrc|XMPSrc|ConfigurationSrc|PosterImageSrc)\((['"])(?:(?!\2).)+\2\)}is) {
161: my $srctype = $1;
162: my $quote = $2;
163: my ($fname) = ($item =~ m{^\Q$srctype($quote\E([^$quote]+)\Q$quote)\E});
164: my $cleanhref =
165: &Apache::londefdef::clean_docs_httpref($fname,$url,$cdom,$cnum);
166: if ($cleanhref) {
167: &Apache::lonxml::extlink($cleanhref);
168: if ($srctype eq 'ConfigurationSrc') {
169: if ($cleanhref =~ m{^(.+/)configuration_express\.xml$}) {
170: #
171: # Camtasia 8.1: express_show/spritesheet.png needed, and included in zip archive.
172: # Not referenced directly in <main>.html or <main>_player.html files,
173: # so call lonxml::extlink() here to include httpref for the uploaded file.
174: # (where <main> is name user gave to file/archive).
175: #
176:
177: my $spritesheet = $1.'express_show/spritesheet.png';
178: if (&Apache::lonnet::repcopy_userfile($spritesheet) eq 'ok') {
179: &Apache::lonxml::extlink($spritesheet);
180: }
181: }
182: #
183: # Camtasia 8.4: express_show/spritesheet.min.css needed, and included in zip archive.
184: # Not referenced directly in <main>.html or <main>_player.html files,
185: # so call lonxml::extlink() here to include httpref for the uploaded file.
186: # (where <main> is name user gave to file/archive).
187: #
188: my $spritesheet_css = $1.'express_show/spritesheet.min.css';
189: if (&Apache::lonnet::repcopy_userfile($spritesheet_css) eq 'ok') {
190: &Apache::lonxml::extlink($spritesheet_css);
191: }
192: } elsif ($srctype eq 'PosterImageSrc') {
193: if ($fname =~ m{^(.+)_First_Frame\.png$}) {
194: my $prefix = $1;
195: my ($path) = ($cleanhref =~ m{^(.+/)\Q$fname\E});
196: #
197: # Camtasia 8.1: <main>_Thumbnails.png needed, and included in zip archive.
198: # Not referenced directly in <main>.html or <main>_player.html files,
199: # so call lonxml::extlink() here to include httpref for the uploaded file
200: # (where <main> is name user gave to file/archive).
201: #
202: my $thumbnail = $path.$prefix.'_Thumbnails.png';
203: if (&Apache::lonnet::repcopy_userfile($thumbnail) eq 'ok') {
204: &Apache::lonxml::extlink($thumbnail);
205: }
206: }
207: }
208: }
209: }
210: }
211: }
212: }
213: if ($bodytext =~ /\(document,\s*(['"])script\1,\s*\[([^\]]+)\]\);/s) {
214: my $scriptslist = $2;
215: my @srcs = split(/\s*,\s*/,$scriptslist);
216: foreach my $src (@srcs) {
217: if ($src =~ /(["'])(?:(?!\1).)+\.js\1/) {
218: my $quote = $1;
219: my ($fname) = ($src =~ m/\Q$quote\E([^$quote]+)\Q$quote\E/);
220: my $cleanhref =
221: &Apache::londefdef::clean_docs_httpref($fname,$url,$cdom,$cnum);
222: if ($cleanhref) {
223: &Apache::lonxml::extlink($cleanhref);
224: }
225: }
226: }
227: }
228: if ($bodytext =~ m{loadScript\(\s*(['"])((?:(?!\1).)+\.js)\1,\s*function}is) {
229: my $fname = $2;
230: if ($fname) {
231: my $cleanhref =
232: &Apache::londefdef::clean_docs_httpref($fname,$url,$cdom,$cnum);
233: if ($cleanhref) {
234: &Apache::lonxml::extlink($cleanhref);
235: }
236: }
237: }
238: }
239: }
240: }
241: }
242: return $result;
243: }
244:
245: sub end_script {
246: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
247: if ( $target eq "meta" ) { return ''; }
248: my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval);
249: my $result='';
250: #other script blocks need to survive
251: if ($type ne "loncapa/perl" && $target ne 'tex') {
252: return $token->[2];
253: } elsif ($target eq 'edit' ) {
254: return &Apache::edit::end_table();
255: } elsif ($target eq 'answer') {
256: $Apache::lonxml::evaluate++;
257: }
258: return '';
259: }
260:
261: sub start_display {
262: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
263: @Apache::scripttag::parser_env = @_;
264: my $result;
265:
266: if ( $target eq "modified" ) {
267: $result=$token->[4].&Apache::edit::modifiedfield("/display",$parser);
268: } elsif ( $target eq 'web' || $target eq 'tex' ||
269: $target eq 'grade' || $target eq 'webgrade' ||
270: $target eq 'answer' || $target eq 'analyze') {
271: my $bodytext=&Apache::lonxml::get_all_text_unbalanced("/display",$parser);
272: if (!$Apache::lonxml::default_homework_loaded) {
273: &Apache::lonxml::default_homework_load($safeeval);
274: }
275: $result=&Apache::run::run($bodytext,$safeeval);
276: if ($target eq 'grade' || $target eq 'answer' ||
277: $target eq 'analyze') {
278: # grade/answer/analyxe should produce no output but if we
279: # are redirecting, the redirecter should know what to do
280: # with the output
281: if (!$Apache::lonxml::redirection) { $result=''; }
282: }
283: $Apache::lonxml::post_evaluate=0;
284: } elsif ($target eq "edit" ) {
285: my $bodytext=&Apache::lonxml::get_all_text_unbalanced("/display",$parser);
286: #$result =
287: # "<br /> <$token->[1]> output: <br />$bodytext<br />Source:<br />";
288: #$result.=&Apache::edit::editfield($token->[1],$bodytext,'',40,1);
289: $result=&Apache::edit::tag_start($target,$token,'Script With Display');
290: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',80,1)
291: } elsif ($target eq 'meta') {
292: my $bodytext=&Apache::lonxml::get_all_text_unbalanced("/display",$parser);
293: }
294: return $result;
295: }
296:
297: sub end_display {
298: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
299: if ($target eq 'edit' ) { return &Apache::edit::end_table(); }
300: return '';
301: }
302:
303: sub start_scriptlib {
304: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
305: my $bodytext;
306: my $result ='';
307: my $error='';
308:
309: if ($target eq 'web' || $target eq 'tex' || $target eq 'grade' ||
310: $target eq 'meta' || $target eq 'edit' || $target eq 'answer' ||
311: $target eq 'analyze' || $target eq 'webgrade') {
312: $bodytext=$$parser[$#$parser]->get_text("/scriptlib");
313: $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
314: $$parstack[$#$parstack]);
315: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
316: $bodytext);
317: my $script=&Apache::lonnet::getfile($location);
318: if ($script == -1) {
319: if ($target eq 'edit') {
320: $error='</tr><tr><td>'.&mt('Errors').'</td><td colspan="2"><b>'.&mt(' Unable to find [_1]','<span class="LC_filename">'.$location.'</span>').'</b></td>'."\n";
321: } else {
322: &Apache::lonxml::error("<b> Unable to find <i>$location</i> for scriptlib</b>");
323: return "";
324: }
325: }
326: &Apache::run::run($script,$safeeval);
327: #&Apache::lonxml::debug("ran $bodytext:<br />".&Apache::lonnet::getfile($bodytext)."<br />");
328: }
329: if ($target eq "edit" ) {
330: $result=
331: &Apache::edit::tag_start($target,$token,'New Script Functions').
332: &Apache::edit::editline($token->[1],$bodytext,'scriptlib',40).
333: &Apache::edit::browse(undef,'textnode').
334: $error.'</td></tr>'.
335: &Apache::edit::end_table();
336: }
337: if ($target eq "modified" ) {
338: $result=$token->[4].&Apache::edit::modifiedfield("/scriptlib",$parser);
339: }
340: return $result;
341: }
342:
343: sub end_scriptlib {
344: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
345: my @result;
346: if ($target eq "edit" ) { $result[1]='no'; }
347: return @result;
348: }
349:
350: sub start_parserlib {
351: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
352: my $bodytext;
353: my $result ="";
354: my $error='';
355: if ($target eq 'web' || $target eq 'tex' || $target eq 'grade' ||
356: $target eq 'meta' || $target eq 'edit' || $target eq 'answer' ||
357: $target eq 'analyze' || $target eq 'webgrade') {
358: $bodytext=$$parser[$#$parser]->get_text("/parserlib");
359: $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
360: $$parstack[$#$parstack]);
361: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
362: $bodytext);
363: my $styletext=&Apache::lonnet::getfile($location);
364: #&Apache::lonxml::debug("found :$bodytext: in :$location: with :$styletext:");
365: if ($styletext == -1) {
366: if ($target eq 'edit') {
367: $error='</tr><tr><td>Errors</td><td colspan="2"><b> Unable to find <i>'.$location.'</i></b></td>'."\n";
368: } else {
369: &Apache::lonxml::error("<b> Unable to find <i>$location</i> for parserlib</b>");
370: return "";
371: }
372: }
373: %$style = ( %$style , &Apache::style::styleparser($target,$styletext));
374: }
375: if ($target eq "edit" ) {
376: $result=
377: &Apache::edit::tag_start($target,$token,'New Tag Definitions').
378: &Apache::edit::editline($token->[1],$bodytext,'',40).
379: $error.'</td></tr>'.
380: &Apache::edit::end_table();
381: }
382: if ($target eq "modified" ) {
383: $result=$token->[4].&Apache::edit::modifiedfield("/parserlib",$parser);
384: }
385: return $result;
386: }
387:
388: sub end_parserlib {
389: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
390: my @result;
391: if ($target eq "edit" ) { $result[1]='no'; }
392: return @result;
393: }
394:
395: sub start_window {
396: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
397: my $result = '';
398: if ($target eq 'web' || $target eq 'webgrade') {
399: &Apache::lonxml::startredirection;
400: } elsif ($target eq 'tex') {
401: my $printtext=&Apache::lonxml::get_param('printtext',$parstack,$safeeval);
402: if ($printtext=~/\w/) {
403: # If printtext is given, do not output any intervening information
404: &Apache::lonxml::startredirection;
405: } else {
406: $result = '\unskip\footnote{';
407: }
408: } elsif ($target eq 'edit') {
409: $result.=&Apache::edit::tag_start($target,$token);
410: $result.=&Apache::edit::text_arg('Text of Link:','linktext',$token,70);
411: $result.=&Apache::edit::text_arg('Height:','height',$token,5);
412: $result.=&Apache::edit::text_arg('Width:','width',$token,5);
413: $result.=&Apache::edit::text_arg('Printed text (optional):','printtext',$token,20);
414: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
415: } elsif ($target eq 'modified') {
416: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
417: $safeeval,'linktext',
418: 'width','height');
419: if ($constructtag) { $result=&Apache::edit::rebuild_tag($token); }
420: }
421: return $result;
422: }
423:
424: sub end_window {
425: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
426: my $result;
427: if ($target eq 'web' || $target eq 'webgrade') {
428: my $output=&Apache::lonxml::endredirection;
429: my $linktext= &Apache::lonxml::get_param('linktext',$parstack,$safeeval);
430: if (!$linktext) { $linktext='<sup>*</sup>'; }
431: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
432: if (!$width) { $width='500'; }
433: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
434: if (!$height) { $height='200'; }
435: $result=&Apache::loncommon::modal_adhoc_window
436: ("LONCAPA_newwindow_$Apache::lonxml::curdepth",$width,$height,$output,$linktext);
437: } elsif ($target eq 'tex') {
438: my $printtext=&Apache::lonxml::get_param('printtext',$parstack,$safeeval);
439: if ($printtext=~/\w/) {
440: # If a "printtext" is given, proceed to retrieve all intervening information and trash it
441: my $output=&Apache::lonxml::endredirection;
442: # Use printtext instead
443: $result=$printtext;
444: } else {
445: $result='}';
446: }
447: } else {
448: $result = '';
449: }
450: return $result;
451: }
452:
453:
454: sub start_windowlink {
455: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
456: my $result = '';
457: if ($target eq 'web' || $target eq 'webgrade') {
458: &Apache::lonxml::startredirection;
459: } elsif ($target eq 'edit') {
460: $result.=&Apache::edit::tag_start($target,$token);
461: $result.=&Apache::edit::text_arg('Link:','href',$token,70);
462: $result.=&Apache::edit::text_arg('Height:','height',$token,5);
463: $result.=&Apache::edit::text_arg('Width:','width',$token,5);
464: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
465: } elsif ($target eq 'modified') {
466: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
467: $safeeval,'href',
468: 'width','height');
469: if ($constructtag) { $result=&Apache::edit::rebuild_tag($token); }
470: }
471: return $result;
472: }
473:
474: sub end_windowlink {
475: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
476: my $result;
477: if ($target eq 'web' || $target eq 'webgrade') {
478: my $output=&Apache::lonxml::endredirection;
479: my $href= &Apache::lonxml::get_param('href',$parstack,$safeeval);
480: if (!$href) { $href='/adm/rat/empty.html'; }
481: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
482: if (!$width) { $width='500'; }
483: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
484: if (!$height) { $height='200'; }
485: $result=&Apache::loncommon::modal_link($href,$output,$width,$height);
486: } else {
487: $result = '';
488: }
489: return $result;
490: }
491:
492:
493: sub start_togglebox {
494: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
495: my $result = '';
496: if ($target eq 'web' || $target eq 'webgrade') {
497: my $id="LONCAPA_togglebox_$Apache::lonxml::curdepth";
498: my $heading=&Apache::lonxml::get_param('heading',$parstack,$safeeval);
499: unless ($heading) { $heading=''; } else { $heading.=' '; }
500: my $showtext=&Apache::lonxml::get_param('showtext',$parstack,$safeeval);
501: my $hidetext=&Apache::lonxml::get_param('hidetext',$parstack,$safeeval);
502: my $headerbg=&Apache::lonxml::get_param('headerbg',$parstack,$safeeval);
503: $result=&Apache::loncommon::start_togglebox($id,$heading,$headerbg,$hidetext,$showtext);
504: } elsif ($target eq 'tex') {
505: my $heading=&Apache::lonxml::get_param('heading',$parstack,$safeeval);
506: unless ($heading) { $heading=''; } else { $heading.=' '; }
507: $result = "\n\n".'\fbox{{\bf '.$heading.'} \qquad '."\n";
508: } elsif ($target eq 'edit') {
509: $result.=&Apache::edit::tag_start($target,$token);
510: $result.=&Apache::edit::text_arg('Heading:','heading',$token,70);
511: $result.=&Apache::edit::text_arg('Header Background:','headerbg',$token,7);
512: $result.=&Apache::edit::text_arg('Show text:','showtext',$token,10);
513: $result.=&Apache::edit::text_arg('Hide text:','hidetext',$token,10);
514: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
515: } elsif ($target eq 'modified') {
516: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
517: $safeeval,'heading',
518: 'showtext','hidetext',
519: 'headerbg','textbg');
520: if ($constructtag) { $result=&Apache::edit::rebuild_tag($token); }
521: }
522: return $result;
523: }
524:
525: sub end_togglebox {
526: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
527: my $result;
528: if ($target eq 'web' || $target eq 'webgrade') {
529: $result=&Apache::loncommon::end_togglebox();
530: } elsif ($target eq 'tex') {
531: $result = "}\n\n";
532: } else {
533: $result = '';
534: }
535: return $result;
536: }
537:
538:
539:
540: sub start_import {
541: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
542: my $bodytext=$$parser[$#$parser]->get_text("/import");
543: my $result ="";
544:
545: $bodytext=&Apache::run::evaluate($bodytext,$safeeval,$$parstack[$#$parstack]);
546:
547: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'grade'
548: || $target eq 'answer' || $target eq 'tex' || $target eq 'analyze' ) {
549: # FIXME this probably needs to be smart about construction vs.
550: # non construction space.
551: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
552: my $file=&Apache::lonnet::getfile($location);
553: if ($file == -1) {
554: &Apache::lonxml::error("<b> Unable to find <i>$bodytext as $location</i> for import</b>");
555: return "";
556: }
557: my $importmode=&Apache::lonxml::get_param('importmode',$parstack,$safeeval);
558: if (($importmode eq 'problem') || ($importmode eq 'part')) {
559: # We are using import to import published problems
560: if (($importmode eq 'problem') || ($file=~/<part[^<]*>/s)) {
561: # We explicitly don't want this to be a separate part or the problem already has parts
562: $file=~s/^\s*<problem>/<library>/s;
563: $file=~s/<\/problem>\s*$/<\/library>/s;
564: } else {
565: # We want this to be a separate part, but it currently is not
566: $file=~s/^\s*<problem>/<library><part>/s;
567: $file=~s/<\/problem>\s*$/<\/part><\/library>/s;
568: }
569: }
570: my $dir=$location;
571: $dir=~s:/[^/]*$::;
572: # &Apache::lonxml::debug("directory $dir $location file $file \n<b>END</b>\n");
573: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
574: if (!$id) { $id=$Apache::lonxml::curdepth; }
575: push(@Apache::inputtags::import,$id);
576: push(@Apache::inputtags::importlist,$id);
577:
578: &Apache::lonxml::newparser($parser,\$file,$dir);
579:
580: } elsif ($target eq "edit" ) {
581: $result.=&Apache::edit::tag_start($target,$token);
582: my $location=$token->[1];
583: $location=~s/^\s*//s;
584: $location=~s/\s*$//s;
585: $result.=&Apache::edit::editline($location,$bodytext,'',40);
586: $result.=&Apache::edit::browse(undef,'textnode');
587: $result.= ' <label>'.&mt('Import as:').
588: '<select name="importmode_'.$Apache::lonxml::curdepth.'">';
589: my %options=&Apache::lonlocal::texthash('' => 'as standard library',
590: 'problem' => 'as problem',
591: 'part' => 'as problem part(s)');
592: foreach my $option (sort(keys(%options))) {
593: $result.='<option value="'.$option.'"';
594: if ($option eq &Apache::lonxml::get_param('importmode',$parstack,$safeeval)) {
595: $result.=' selected="selected"';
596: }
597: $result.='>'.$options{$option}.'</option>';
598: }
599: $result.='</select></label>';
600: #FIXME this need to convert $bodytext to be a contruction space reference
601: #my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
602: #$result.="Click<a href=\"$location\">here</a> to edit<br />"
603: } elsif ($target eq 'modified') {
604: &Apache::edit::get_new_args($token,$parstack,$safeeval,'importmode');
605: $result='<import id="'.$token->[2]{'id'}.'" importmode="'.$token->[2]{'importmode'}.'">';
606: $result.=&Apache::edit::modifiedfield("/import",$parser);
607: } elsif ($target eq 'meta') {
608: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
609: $result.='<import part="'.$Apache::inputtags::part;
610: if ($id) {
611: $result.='" id="'.$id;
612: }
613: $result.='" importmode="'.$token->[2]{'importmode'}.'">';
614: $result.=$bodytext;
615: $result.='</import>';
616: }
617: return $result;
618: }
619:
620: sub end_import {
621: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
622: pop(@Apache::inputtags::import);
623: my $result;
624: if ($target eq 'edit' ) { $result=&Apache::edit::end_row.
625: &Apache::edit::end_table(); }
626: return $result;
627: }
628:
629: sub start_storetc {
630: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
631: my $result = '';
632: &Apache::lonxml::startredirection;
633: return $result;
634: }
635:
636: sub end_storetc {
637: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
638: my $result;
639: my $output=&Apache::lonxml::endredirection;
640: $output =~ s/\"/\"\;/g;
641: $result = '{\bf '.$output.'.}}\write\tcfile{\protect\tcpc{ '.$output.'.}{\the\value{relpage}}}';
642: return $result;
643: }
644:
645:
646: sub start_physnet {
647: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
648: my $bodytext = '/res/adm/includes/physnet.sty';
649: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
650: my $cbistyletext=&Apache::lonnet::getfile($location);
651:
652: %$style = (%$style,&Apache::style::styleparser($target,$cbistyletext));
653: if (keys(%$style) && (($target eq 'web') || ($target eq 'tex'))) {
654: $$parser['-1']->unget_token($token);
655: }
656: # if ( defined($$style{'physnet'}) ) {
657: # &Apache::lonxml::newparser($parser,\$$style{'physnet'});
658: # }
659: return "";
660: }
661:
662: sub end_physnet {
663: return '';
664: }
665:
666: sub start_standalone {
667: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
668: my $result='';
669: if ($target eq 'web' || $target eq 'webgrade') {
670: if ( $env{'request.course.id'} ) {
671: my $inside = &Apache::lonxml::get_all_text("/standalone",$parser,$style);
672: } else {
673: $result='<table bgcolor="#E1E1E1" border="2"><tr><td>';
674: }
675: }
676: return $result;
677: }
678:
679: sub end_standalone {
680: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
681: my $result='';
682: if ($target eq 'web' || $target eq 'webgrade' ) {
683: if ( $env{'request.course.id'} ) {
684: } else {
685: $result='</td></tr></table>';
686: }
687: }
688: return $result;
689: }
690:
691: sub start_comment {
692: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
693: my $result='';
694: if ($target eq 'edit') {
695: $result=&Apache::edit::tag_start($target,$token);
696: my $bodytext=&Apache::lonxml::get_all_text("/comment",$parser,$style);
697: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',80,4)
698: } elsif ( $target eq 'modified') {
699: $result=$token->[4].&Apache::edit::modifiedfield("/comment",$parser);
700: } elsif ( $target eq 'web' || $target eq 'tex' || $target eq 'grade' ||
701: $target eq 'answer' || $target eq 'meta' || $target eq 'analyze' ||
702: $target eq 'webgrade') {
703: #normally throw away comments
704: my $bodytext=&Apache::lonxml::get_all_text("/comment",$parser,$style);
705: }
706: return $result;
707: }
708:
709: sub end_comment {
710: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
711: if ($target eq 'edit' ) { return &Apache::edit::end_table(); }
712: return '';
713: }
714:
715:
716: sub xmlparse {
717: my ($string) = @_;
718: &Apache::lonxml::debug("xmlparse recursion starting with $string");
719: # Apache::run::evaluate does an 'eval' on the name of the subroutine
720: # if it detects something that looks like a subroutine, this ends up calling
721: # things without any arguments and since perl is nice enough to pass
722: # along the default arguments when you don't explicitly say no arguments
723: # if you call &xmlparse, it gets &xmlparse passed as it argument.
724: # Same thing soccurs with &chemparse.
725: if ($string eq '&xmlparse') { return '&xmlparse'; }
726: if ($string eq '&chemparse') { return '&chemparse'; }
727: my ($target,$token,$tagstack,$parstack,$oldparser,$safeeval,$style)=
728: @Apache::scripttag::parser_env;
729: my @parser;
730: &Apache::lonxml::newparser(\@parser,\$string);
731: &Apache::lonxml::startredirection();
732: my $result=&Apache::lonxml::inner_xmlparse($target,$tagstack,
733: $parstack,\@parser,
734: $safeeval,$style);
735: $result.=&Apache::lonxml::endredirection();
736: &Apache::lonxml::debug("target is $target xmlparse recursion ending with $result");
737: return $result;
738: }
739:
740: sub start_num {
741: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
742: my $result = '';
743: my $inside = &Apache::lonxml::get_all_text_unbalanced("/num",$parser);
744: if ($target eq 'tex' || $target eq 'web' || $target eq 'webgrade') {
745: $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
746: if (!$Apache::lonxml::default_homework_loaded) {
747: &Apache::lonxml::default_homework_load($safeeval);
748: }
749: @Apache::scripttag::parser_env = @_;
750: my $format=&Apache::lonxml::get_param('format',$parstack,$safeeval);
751: $result=&Apache::run::run("return &prettyprint(q\0$inside\0,q\0$format\0);",$safeeval);
752: }
753: return $result;
754: }
755:
756: sub end_num {
757: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
758: my $result = '';
759: return $result;
760: }
761:
762: sub start_parse {
763: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
764: my $result = '';
765: if ( $target eq 'web' || $target eq 'tex' ||
766: $target eq 'grade' || $target eq 'answer' ||
767: $target eq 'analyze'|| $target eq 'webgrade') {
768: my $inside = &Apache::lonxml::get_all_text_unbalanced("/parse",$parser);
769: $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
770: if (!$Apache::lonxml::default_homework_loaded) {
771: &Apache::lonxml::default_homework_load($safeeval);
772: }
773: @Apache::scripttag::parser_env = @_;
774: $result=&Apache::run::run("return &xmlparse(q\0$inside\0);",$safeeval);
775: if ($target eq 'grade' || $target eq 'answer' ||
776: $target eq 'analyze') {
777: # grade/answer/analyxe should produce no output but if we
778: # are redirecting, the redirecter should know what to do
779: # with the output
780: if (!$Apache::lonxml::redirection) { $result=''; }
781: }
782: }
783: return $result;
784: }
785:
786: sub end_parse {
787: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
788: my $result = '';
789: return $result;
790: }
791:
792: sub start_algebra {
793: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
794: my $result = '';
795: if ( $target eq 'web' || $target eq 'tex' ||
796: $target eq 'grade' || $target eq 'answer' ||
797: $target eq 'analyze' || $target eq 'webgrade') {
798: my $inside = &Apache::lonxml::get_all_text_unbalanced("/algebra",$parser);
799: $inside = &Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
800: if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
801: my $style=&Apache::lonxml::get_param('style',$parstack,$safeeval);
802: $result=&Apache::lontexconvert::algebra($inside,$target,$style,$parstack,$safeeval);
803: }
804: $Apache::lonxml::post_evaluate=0;
805: }
806: return $result;
807: }
808:
809: sub end_algebra {
810: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
811: my $result = '';
812: return $result;
813: }
814:
815: 1;
816: __END__
817:
818: =pod
819:
820: =head1 NAME
821:
822: Apache::scripttag.pm
823:
824: =head1 SYNOPSIS
825:
826: implements <script>, <scriptlib>, <parserlib>,
827: and <import>
828:
829: This is part of the LearningOnline Network with CAPA project
830: described at http://www.lon-capa.org.
831:
832: =cut
833:
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