1: # The LearningOnline Network with CAPA
2: # <script> definiton
3: #
4: # $Id: scripttag.pm,v 1.170 2014/07/27 11:39:29 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{\.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: }
229: }
230: }
231: }
232: return $result;
233: }
234:
235: sub end_script {
236: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
237: if ( $target eq "meta" ) { return ''; }
238: my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval);
239: my $result='';
240: #other script blocks need to survive
241: if ($type ne "loncapa/perl" && $target ne 'tex') {
242: return $token->[2];
243: } elsif ($target eq 'edit' ) {
244: return &Apache::edit::end_table();
245: } elsif ($target eq 'answer') {
246: $Apache::lonxml::evaluate++;
247: }
248: return '';
249: }
250:
251: sub start_display {
252: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
253: @Apache::scripttag::parser_env = @_;
254: my $result;
255:
256: if ( $target eq "modified" ) {
257: $result=$token->[4].&Apache::edit::modifiedfield("/display",$parser);
258: } elsif ( $target eq 'web' || $target eq 'tex' ||
259: $target eq 'grade' || $target eq 'webgrade' ||
260: $target eq 'answer' || $target eq 'analyze') {
261: my $bodytext=&Apache::lonxml::get_all_text_unbalanced("/display",$parser);
262: if (!$Apache::lonxml::default_homework_loaded) {
263: &Apache::lonxml::default_homework_load($safeeval);
264: }
265: $result=&Apache::run::run($bodytext,$safeeval);
266: if ($target eq 'grade' || $target eq 'answer' ||
267: $target eq 'analyze') {
268: # grade/answer/analyxe should produce no output but if we
269: # are redirecting, the redirecter should know what to do
270: # with the output
271: if (!$Apache::lonxml::redirection) { $result=''; }
272: }
273: $Apache::lonxml::post_evaluate=0;
274: } elsif ($target eq "edit" ) {
275: my $bodytext=&Apache::lonxml::get_all_text_unbalanced("/display",$parser);
276: #$result =
277: # "<br /> <$token->[1]> output: <br />$bodytext<br />Source:<br />";
278: #$result.=&Apache::edit::editfield($token->[1],$bodytext,'',40,1);
279: $result=&Apache::edit::tag_start($target,$token,'Script With Display');
280: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',80,1)
281: } elsif ($target eq 'meta') {
282: my $bodytext=&Apache::lonxml::get_all_text_unbalanced("/display",$parser);
283: }
284: return $result;
285: }
286:
287: sub end_display {
288: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
289: if ($target eq 'edit' ) { return &Apache::edit::end_table(); }
290: return '';
291: }
292:
293: sub start_scriptlib {
294: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
295: my $bodytext;
296: my $result ='';
297: my $error='';
298:
299: if ($target eq 'web' || $target eq 'tex' || $target eq 'grade' ||
300: $target eq 'meta' || $target eq 'edit' || $target eq 'answer' ||
301: $target eq 'analyze' || $target eq 'webgrade') {
302: $bodytext=$$parser[$#$parser]->get_text("/scriptlib");
303: $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
304: $$parstack[$#$parstack]);
305: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
306: $bodytext);
307: my $script=&Apache::lonnet::getfile($location);
308: if ($script == -1) {
309: if ($target eq 'edit') {
310: $error='</tr><tr><td>'.&mt('Errors').'</td><td colspan="2"><b>'.&mt(' Unable to find [_1]','<span class="LC_filename">'.$location.'</span>').'</b></td>'."\n";
311: } else {
312: &Apache::lonxml::error("<b> Unable to find <i>$location</i> for scriptlib</b>");
313: return "";
314: }
315: }
316: &Apache::run::run($script,$safeeval);
317: #&Apache::lonxml::debug("ran $bodytext:<br />".&Apache::lonnet::getfile($bodytext)."<br />");
318: }
319: if ($target eq "edit" ) {
320: $result=
321: &Apache::edit::tag_start($target,$token,'New Script Functions').
322: &Apache::edit::editline($token->[1],$bodytext,'scriptlib',40).
323: &Apache::edit::browse(undef,'textnode').
324: $error.'</td></tr>'.
325: &Apache::edit::end_table();
326: }
327: if ($target eq "modified" ) {
328: $result=$token->[4].&Apache::edit::modifiedfield("/scriptlib",$parser);
329: }
330: return $result;
331: }
332:
333: sub end_scriptlib {
334: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
335: my @result;
336: if ($target eq "edit" ) { $result[1]='no'; }
337: return @result;
338: }
339:
340: sub start_parserlib {
341: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
342: my $bodytext;
343: my $result ="";
344: my $error='';
345: if ($target eq 'web' || $target eq 'tex' || $target eq 'grade' ||
346: $target eq 'meta' || $target eq 'edit' || $target eq 'answer' ||
347: $target eq 'analyze' || $target eq 'webgrade') {
348: $bodytext=$$parser[$#$parser]->get_text("/parserlib");
349: $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
350: $$parstack[$#$parstack]);
351: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
352: $bodytext);
353: my $styletext=&Apache::lonnet::getfile($location);
354: #&Apache::lonxml::debug("found :$bodytext: in :$location: with :$styletext:");
355: if ($styletext == -1) {
356: if ($target eq 'edit') {
357: $error='</tr><tr><td>Errors</td><td colspan="2"><b> Unable to find <i>'.$location.'</i></b></td>'."\n";
358: } else {
359: &Apache::lonxml::error("<b> Unable to find <i>$location</i> for parserlib</b>");
360: return "";
361: }
362: }
363: %$style = ( %$style , &Apache::style::styleparser($target,$styletext));
364: }
365: if ($target eq "edit" ) {
366: $result=
367: &Apache::edit::tag_start($target,$token,'New Tag Definitions').
368: &Apache::edit::editline($token->[1],$bodytext,'',40).
369: $error.'</td></tr>'.
370: &Apache::edit::end_table();
371: }
372: if ($target eq "modified" ) {
373: $result=$token->[4].&Apache::edit::modifiedfield("/parserlib",$parser);
374: }
375: return $result;
376: }
377:
378: sub end_parserlib {
379: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
380: my @result;
381: if ($target eq "edit" ) { $result[1]='no'; }
382: return @result;
383: }
384:
385: sub start_window {
386: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
387: my $result = '';
388: if ($target eq 'web' || $target eq 'webgrade') {
389: &Apache::lonxml::startredirection;
390: } elsif ($target eq 'tex') {
391: my $printtext=&Apache::lonxml::get_param('printtext',$parstack,$safeeval);
392: if ($printtext=~/\w/) {
393: # If printtext is given, do not output any intervening information
394: &Apache::lonxml::startredirection;
395: } else {
396: $result = '\unskip\footnote{';
397: }
398: } elsif ($target eq 'edit') {
399: $result.=&Apache::edit::tag_start($target,$token);
400: $result.=&Apache::edit::text_arg('Text of Link:','linktext',$token,70);
401: $result.=&Apache::edit::text_arg('Height:','height',$token,5);
402: $result.=&Apache::edit::text_arg('Width:','width',$token,5);
403: $result.=&Apache::edit::text_arg('Printed text (optional):','printtext',$token,20);
404: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
405: } elsif ($target eq 'modified') {
406: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
407: $safeeval,'linktext',
408: 'width','height');
409: if ($constructtag) { $result=&Apache::edit::rebuild_tag($token); }
410: }
411: return $result;
412: }
413:
414: sub end_window {
415: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
416: my $result;
417: if ($target eq 'web' || $target eq 'webgrade') {
418: my $output=&Apache::lonxml::endredirection;
419: my $linktext= &Apache::lonxml::get_param('linktext',$parstack,$safeeval);
420: if (!$linktext) { $linktext='<sup>*</sup>'; }
421: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
422: if (!$width) { $width='500'; }
423: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
424: if (!$height) { $height='200'; }
425: $result=&Apache::loncommon::modal_adhoc_window
426: ("LONCAPA_newwindow_$Apache::lonxml::curdepth",$width,$height,$output,$linktext);
427: } elsif ($target eq 'tex') {
428: my $printtext=&Apache::lonxml::get_param('printtext',$parstack,$safeeval);
429: if ($printtext=~/\w/) {
430: # If a "printtext" is given, proceed to retrieve all intervening information and trash it
431: my $output=&Apache::lonxml::endredirection;
432: # Use printtext instead
433: $result=$printtext;
434: } else {
435: $result='}';
436: }
437: } else {
438: $result = '';
439: }
440: return $result;
441: }
442:
443:
444: sub start_windowlink {
445: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
446: my $result = '';
447: if ($target eq 'web' || $target eq 'webgrade') {
448: &Apache::lonxml::startredirection;
449: } elsif ($target eq 'edit') {
450: $result.=&Apache::edit::tag_start($target,$token);
451: $result.=&Apache::edit::text_arg('Link:','href',$token,70);
452: $result.=&Apache::edit::text_arg('Height:','height',$token,5);
453: $result.=&Apache::edit::text_arg('Width:','width',$token,5);
454: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
455: } elsif ($target eq 'modified') {
456: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
457: $safeeval,'href',
458: 'width','height');
459: if ($constructtag) { $result=&Apache::edit::rebuild_tag($token); }
460: }
461: return $result;
462: }
463:
464: sub end_windowlink {
465: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
466: my $result;
467: if ($target eq 'web' || $target eq 'webgrade') {
468: my $output=&Apache::lonxml::endredirection;
469: my $href= &Apache::lonxml::get_param('href',$parstack,$safeeval);
470: if (!$href) { $href='/adm/rat/empty.html'; }
471: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
472: if (!$width) { $width='500'; }
473: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
474: if (!$height) { $height='200'; }
475: $result=&Apache::loncommon::modal_link($href,$output,$width,$height);
476: } else {
477: $result = '';
478: }
479: return $result;
480: }
481:
482:
483: sub start_togglebox {
484: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
485: my $result = '';
486: if ($target eq 'web' || $target eq 'webgrade') {
487: my $id="LONCAPA_togglebox_$Apache::lonxml::curdepth";
488: my $heading=&Apache::lonxml::get_param('heading',$parstack,$safeeval);
489: unless ($heading) { $heading=''; } else { $heading.=' '; }
490: my $showtext=&Apache::lonxml::get_param('showtext',$parstack,$safeeval);
491: my $hidetext=&Apache::lonxml::get_param('hidetext',$parstack,$safeeval);
492: my $headerbg=&Apache::lonxml::get_param('headerbg',$parstack,$safeeval);
493: $result=&Apache::loncommon::start_togglebox($id,$heading,$headerbg,$hidetext,$showtext);
494: } elsif ($target eq 'tex') {
495: my $heading=&Apache::lonxml::get_param('heading',$parstack,$safeeval);
496: unless ($heading) { $heading=''; } else { $heading.=' '; }
497: $result = "\n\n".'\fbox{{\bf '.$heading.'} \qquad '."\n";
498: } elsif ($target eq 'edit') {
499: $result.=&Apache::edit::tag_start($target,$token);
500: $result.=&Apache::edit::text_arg('Heading:','heading',$token,70);
501: $result.=&Apache::edit::text_arg('Header Background:','headerbg',$token,7);
502: $result.=&Apache::edit::text_arg('Show text:','showtext',$token,10);
503: $result.=&Apache::edit::text_arg('Hide text:','hidetext',$token,10);
504: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
505: } elsif ($target eq 'modified') {
506: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
507: $safeeval,'heading',
508: 'showtext','hidetext',
509: 'headerbg','textbg');
510: if ($constructtag) { $result=&Apache::edit::rebuild_tag($token); }
511: }
512: return $result;
513: }
514:
515: sub end_togglebox {
516: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
517: my $result;
518: if ($target eq 'web' || $target eq 'webgrade') {
519: $result=&Apache::loncommon::end_togglebox();
520: } elsif ($target eq 'tex') {
521: $result = "}\n\n";
522: } else {
523: $result = '';
524: }
525: return $result;
526: }
527:
528:
529:
530: sub start_import {
531: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
532: my $bodytext=$$parser[$#$parser]->get_text("/import");
533: my $result ="";
534:
535: $bodytext=&Apache::run::evaluate($bodytext,$safeeval,$$parstack[$#$parstack]);
536:
537: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'grade'
538: || $target eq 'answer' || $target eq 'tex' || $target eq 'analyze' ) {
539: # FIXME this probably needs to be smart about construction vs.
540: # non construction space.
541: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
542: my $file=&Apache::lonnet::getfile($location);
543: if ($file == -1) {
544: &Apache::lonxml::error("<b> Unable to find <i>$bodytext as $location</i> for import</b>");
545: return "";
546: }
547: my $importmode=&Apache::lonxml::get_param('importmode',$parstack,$safeeval);
548: if (($importmode eq 'problem') || ($importmode eq 'part')) {
549: # We are using import to import published problems
550: if (($importmode eq 'problem') || ($file=~/<part[^<]*>/s)) {
551: # We explicitly don't want this to be a separate part or the problem already has parts
552: $file=~s/^\s*<problem>/<library>/s;
553: $file=~s/<\/problem>\s*$/<\/library>/s;
554: } else {
555: # We want this to be a separate part, but it currently is not
556: $file=~s/^\s*<problem>/<library><part>/s;
557: $file=~s/<\/problem>\s*$/<\/part><\/library>/s;
558: }
559: }
560: my $dir=$location;
561: $dir=~s:/[^/]*$::;
562: # &Apache::lonxml::debug("directory $dir $location file $file \n<b>END</b>\n");
563: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
564: if (!$id) { $id=$Apache::lonxml::curdepth; }
565: push(@Apache::inputtags::import,$id);
566: push(@Apache::inputtags::importlist,$id);
567:
568: &Apache::lonxml::newparser($parser,\$file,$dir);
569:
570: } elsif ($target eq "edit" ) {
571: $result.=&Apache::edit::tag_start($target,$token);
572: my $location=$token->[1];
573: $location=~s/^\s*//s;
574: $location=~s/\s*$//s;
575: $result.=&Apache::edit::editline($location,$bodytext,'',40);
576: $result.=&Apache::edit::browse(undef,'textnode');
577: $result.= ' <label>'.&mt('Import as:').
578: '<select name="importmode_'.$Apache::lonxml::curdepth.'">';
579: my %options=&Apache::lonlocal::texthash('' => 'as standard library',
580: 'problem' => 'as problem',
581: 'part' => 'as problem part(s)');
582: foreach my $option (sort(keys(%options))) {
583: $result.='<option value="'.$option.'"';
584: if ($option eq &Apache::lonxml::get_param('importmode',$parstack,$safeeval)) {
585: $result.=' selected="selected"';
586: }
587: $result.='>'.$options{$option}.'</option>';
588: }
589: $result.='</select></label>';
590: #FIXME this need to convert $bodytext to be a contruction space reference
591: #my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
592: #$result.="Click<a href=\"$location\">here</a> to edit<br />"
593: } elsif ($target eq 'modified') {
594: &Apache::edit::get_new_args($token,$parstack,$safeeval,'importmode');
595: $result='<import id="'.$token->[2]{'id'}.'" importmode="'.$token->[2]{'importmode'}.'">';
596: $result.=&Apache::edit::modifiedfield("/import",$parser);
597: } elsif ($target eq 'meta') {
598: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
599: $result.='<import part="'.$Apache::inputtags::part;
600: if ($id) {
601: $result.='" id="'.$id;
602: }
603: $result.='" importmode="'.$token->[2]{'importmode'}.'">';
604: $result.=$bodytext;
605: $result.='</import>';
606: }
607: return $result;
608: }
609:
610: sub end_import {
611: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
612: pop(@Apache::inputtags::import);
613: my $result;
614: if ($target eq 'edit' ) { $result=&Apache::edit::end_row.
615: &Apache::edit::end_table(); }
616: return $result;
617: }
618:
619: sub start_storetc {
620: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
621: my $result = '';
622: &Apache::lonxml::startredirection;
623: return $result;
624: }
625:
626: sub end_storetc {
627: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
628: my $result;
629: my $output=&Apache::lonxml::endredirection;
630: $output =~ s/\"/\"\;/g;
631: $result = '{\bf '.$output.'.}}\write\tcfile{\protect\tcpc{ '.$output.'.}{\the\value{relpage}}}';
632: return $result;
633: }
634:
635:
636: sub start_physnet {
637: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
638: my $bodytext = '/adm/includes/physnet.sty';
639: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
640: my $cbistyletext=&Apache::lonnet::getfile($location);
641:
642: %$style = (%$style,&Apache::style::styleparser($target,$cbistyletext));
643: $$parser['-1']->unget_token($token);
644: # if ( defined($$style{'physnet'}) ) {
645: # &Apache::lonxml::newparser($parser,\$$style{'physnet'});
646: # }
647: return "";
648: }
649:
650: sub end_physnet {
651: return '';
652: }
653:
654: sub start_standalone {
655: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
656: my $result='';
657: if ($target eq 'web' || $target eq 'webgrade') {
658: if ( $env{'request.course.id'} ) {
659: my $inside = &Apache::lonxml::get_all_text("/standalone",$parser,$style);
660: } else {
661: $result='<table bgcolor="#E1E1E1" border="2"><tr><td>';
662: }
663: }
664: return $result;
665: }
666:
667: sub end_standalone {
668: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
669: my $result='';
670: if ($target eq 'web' || $target eq 'webgrade' ) {
671: if ( $env{'request.course.id'} ) {
672: } else {
673: $result='</td></tr></table>';
674: }
675: }
676: return $result;
677: }
678:
679: sub start_comment {
680: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
681: my $result='';
682: if ($target eq 'edit') {
683: $result=&Apache::edit::tag_start($target,$token);
684: my $bodytext=&Apache::lonxml::get_all_text("/comment",$parser,$style);
685: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',80,4)
686: } elsif ( $target eq 'modified') {
687: $result=$token->[4].&Apache::edit::modifiedfield("/comment",$parser);
688: } elsif ( $target eq 'web' || $target eq 'tex' || $target eq 'grade' ||
689: $target eq 'answer' || $target eq 'meta' || $target eq 'analyze' ||
690: $target eq 'webgrade') {
691: #normally throw away comments
692: my $bodytext=&Apache::lonxml::get_all_text("/comment",$parser,$style);
693: }
694: return $result;
695: }
696:
697: sub end_comment {
698: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
699: if ($target eq 'edit' ) { return &Apache::edit::end_table(); }
700: return '';
701: }
702:
703:
704: sub xmlparse {
705: my ($string) = @_;
706: &Apache::lonxml::debug("xmlparse recursion starting with $string");
707: # Apache::run::evaluate does an 'eval' on the name of the subroutine
708: # if it detects something that looks like a subroutine, this ends up calling
709: # things without any arguments and since perl is nice enough to pass
710: # along the default arguments when you don't explicitly say no arguments
711: # if you call &xmlparse, it gets &xmlparse passed as it argument.
712: # Same thing soccurs with &chemparse.
713: if ($string eq '&xmlparse') { return '&xmlparse'; }
714: if ($string eq '&chemparse') { return '&chemparse'; }
715: my ($target,$token,$tagstack,$parstack,$oldparser,$safeeval,$style)=
716: @Apache::scripttag::parser_env;
717: my @parser;
718: &Apache::lonxml::newparser(\@parser,\$string);
719: &Apache::lonxml::startredirection();
720: my $result=&Apache::lonxml::inner_xmlparse($target,$tagstack,
721: $parstack,\@parser,
722: $safeeval,$style);
723: $result.=&Apache::lonxml::endredirection();
724: &Apache::lonxml::debug("target is $target xmlparse recursion ending with $result");
725: return $result;
726: }
727:
728: sub start_num {
729: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
730: my $result = '';
731: my $inside = &Apache::lonxml::get_all_text_unbalanced("/num",$parser);
732: if ($target eq 'tex' || $target eq 'web' || $target eq 'webgrade') {
733: $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
734: if (!$Apache::lonxml::default_homework_loaded) {
735: &Apache::lonxml::default_homework_load($safeeval);
736: }
737: @Apache::scripttag::parser_env = @_;
738: my $format=&Apache::lonxml::get_param('format',$parstack,$safeeval);
739: $result=&Apache::run::run("return &prettyprint(q\0$inside\0,q\0$format\0);",$safeeval);
740: }
741: return $result;
742: }
743:
744: sub end_num {
745: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
746: my $result = '';
747: return $result;
748: }
749:
750: sub start_parse {
751: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
752: my $result = '';
753: if ( $target eq 'web' || $target eq 'tex' ||
754: $target eq 'grade' || $target eq 'answer' ||
755: $target eq 'analyze'|| $target eq 'webgrade') {
756: my $inside = &Apache::lonxml::get_all_text_unbalanced("/parse",$parser);
757: $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
758: if (!$Apache::lonxml::default_homework_loaded) {
759: &Apache::lonxml::default_homework_load($safeeval);
760: }
761: @Apache::scripttag::parser_env = @_;
762: $result=&Apache::run::run("return &xmlparse(q\0$inside\0);",$safeeval);
763: if ($target eq 'grade' || $target eq 'answer' ||
764: $target eq 'analyze') {
765: # grade/answer/analyxe should produce no output but if we
766: # are redirecting, the redirecter should know what to do
767: # with the output
768: if (!$Apache::lonxml::redirection) { $result=''; }
769: }
770: }
771: return $result;
772: }
773:
774: sub end_parse {
775: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
776: my $result = '';
777: return $result;
778: }
779:
780: sub start_algebra {
781: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
782: my $result = '';
783: if ( $target eq 'web' || $target eq 'tex' ||
784: $target eq 'grade' || $target eq 'answer' ||
785: $target eq 'analyze' || $target eq 'webgrade') {
786: my $inside = &Apache::lonxml::get_all_text_unbalanced("/algebra",$parser);
787: $inside = &Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
788: if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
789: my $style=&Apache::lonxml::get_param('style',$parstack,$safeeval);
790: $result=&Apache::lontexconvert::algebra($inside,$target,$style,$parstack,$safeeval);
791: }
792: $Apache::lonxml::post_evaluate=0;
793: }
794: return $result;
795: }
796:
797: sub end_algebra {
798: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
799: my $result = '';
800: return $result;
801: }
802:
803: 1;
804: __END__
805:
806: =pod
807:
808: =head1 NAME
809:
810: Apache::scripttag.pm
811:
812: =head1 SYNOPSIS
813:
814: implements <script>, <scriptlib>, <parserlib>,
815: and <import>
816:
817: This is part of the LearningOnline Network with CAPA project
818: described at http://www.lon-capa.org.
819:
820: =cut
821:
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