1: # LearningOnline Network with CAPA
2: # option list style responses
3: #
4: # $Id: optionresponse.pm,v 1.108 2004/04/23 21:37:41 albertel 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: package Apache::optionresponse;
29: use strict;
30: use Apache::response();
31: use Apache::lonlocal;
32:
33: BEGIN {
34: &Apache::lonxml::register('Apache::optionresponse',('optionresponse'));
35: }
36:
37: sub start_optionresponse {
38: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
39: my $result='';
40: #when in a option response use these
41: &Apache::lonxml::register('Apache::optionresponse',('foilgroup','foil','conceptgroup'));
42: push (@Apache::lonxml::namespace,'optionresponse');
43: my $id = &Apache::response::start_response($parstack,$safeeval);
44: %Apache::hint::option=();
45: undef(%Apache::response::foilnames);
46: if ($target eq 'edit') {
47: $result.=&Apache::edit::start_table($token).
48: "<tr><td>Multiple Option Response Question ".
49: &Apache::loncommon::help_open_topic('Option_Response_Problems')."</td><td>Delete:".
50: &Apache::edit::deletelist($target,$token)
51: ."</td><td> ".
52: &Apache::edit::end_row().
53: &Apache::edit::start_spanning_row().
54: "\n";
55: $result.=&Apache::edit::text_arg('Max Number Of Shown Foils:','max',
56: $token,'4').
57: &Apache::edit::select_arg('Randomize Foil Order','randomize',
58: ['yes','no'],$token).
59: &Apache::edit::select_arg(&mt('Display of options when printed'),'TeXlayout',
60: [['horizontal',&mt('Normal list')],
61: ['vertical',&mt('Listed in a vertical column')]],$token).
62: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
63: } elsif ($target eq 'modified') {
64: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
65: $safeeval,'max','randomize',
66: 'TeXlayout');
67: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
68: } elsif ($target eq 'meta') {
69: $result=&Apache::response::meta_package_write('optionresponse');
70: } elsif ($target eq 'analyze') {
71: my $part_id="$Apache::inputtags::part.$id";
72: push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
73: }
74: return $result;
75: }
76:
77: sub end_optionresponse {
78: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
79: &Apache::response::end_response;
80: pop @Apache::lonxml::namespace;
81: &Apache::lonxml::deregister('Apache::optionresponse',('foilgroup','foil','conceptgroup'));
82: my $result;
83: if ($target eq 'edit') { $result=&Apache::edit::end_table(); }
84: undef(%Apache::response::foilnames);
85: return $result;
86: }
87:
88: %Apache::response::foilgroup=();
89: sub start_foilgroup {
90: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
91:
92: my $result='';
93: %Apache::response::foilgroup=();
94: $Apache::optionresponse::conceptgroup=0;
95: &Apache::response::setrandomnumber();
96: if ($target eq 'edit') {
97: my $optionlist="<option></option>\n";
98: my $option;
99: my @opt;
100: eval '@opt ='. &Apache::lonxml::get_param('options',$parstack,$safeeval);
101: my $count=1;
102: foreach $option (@opt) {
103: $optionlist.="<option value=\"$count\">$option</option>\n";
104: $count++;
105: }
106: my $insertlist=&Apache::edit::insertlist($target,$token);
107: $result.=&Apache::edit::start_table($token);
108: $result.= (<<ENDTABLE);
109: <tr><td>Select Options</td>
110: <td>
111: Add new Option: <input type="text" name="$Apache::lonxml::curdepth.options" />
112: </td>
113: <td>Delete an Option:
114: <select name="$Apache::lonxml::curdepth.deleteopt">$optionlist</select>
115: ENDTABLE
116: $result.= &Apache::edit::end_row();
117: $result.= &Apache::edit::start_spanning_row();
118: $result.= $insertlist.'<br />';
119: }
120: if ($target eq 'modified') {
121: my @options;
122: my $optchanged=0;
123: eval '@options ='.&Apache::lonxml::get_param('options',$parstack,$safeeval);
124: if ($ENV{"form.$Apache::lonxml::curdepth.deleteopt"}) {
125: my $delopt=$ENV{"form.$Apache::lonxml::curdepth.deleteopt"};
126: &Apache::lonxml::debug("Deleting :$delopt:");
127: splice(@options,$delopt-1,1);
128: $optchanged=1;
129: }
130: if ($ENV{"form.$Apache::lonxml::curdepth.options"}) {
131: my $newopt = $ENV{"form.$Apache::lonxml::curdepth.options"};
132: if ($options[0]) {
133: push(@options,$newopt);
134: } else {
135: $options[0]=$newopt;
136: }
137: $optchanged=1;
138: }
139: if ($optchanged) {
140: $result = "<foilgroup options=\"(";
141: foreach my $option (@options) {
142: $option=~s/\'/\\\'/g;
143: &Apache::lonxml::debug("adding option :$option:");
144: $result .="'".$option."',";
145: }
146: chop $result;
147: $result.=')">';
148: } # else nothing changed so just use the default mechanism
149: }
150: if ($target eq 'tex' and $Apache::lonhomework::type ne 'exam') {
151: $result .= ' \begin{enumerate} ';
152: }
153: return $result;
154: }
155:
156: sub end_foilgroup {
157: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
158:
159: my $result;
160: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
161: $target eq 'tex' || $target eq 'analyze') {
162: my $tex_option_switch=&Apache::lonxml::get_param('texoptions',$parstack,$safeeval);
163: my $name;
164: my @opt;
165: eval '@opt ='.&Apache::lonxml::get_param('options',$parstack,$safeeval);
166: my $TeXlayout=&Apache::lonxml::get_param('TeXlayout',$parstack,$safeeval,
167: -2,0);
168: if ($target eq 'tex' && $tex_option_switch eq 'nochoice') {@opt=();}
169: &Apache::lonxml::debug("Options are $#opt");
170: my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,'-2');
171: my $randomize = &Apache::lonxml::get_param('randomize',$parstack,
172: $safeeval,'-2');
173: if ($target eq 'web' || $target eq 'tex') {
174: $result.=&displayfoils($target,$max,$randomize,$TeXlayout,@opt);
175: } elsif ( $target eq 'answer') {
176: $result.=&displayanswers($max,$randomize,@opt);
177: } elsif ( $target eq 'analyze') {
178: my @shown = &whichfoils($max,$randomize);
179: &Apache::response::analyze_store_foilgroup(\@shown,
180: ['text','value','location']);
181: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
182: push (@{ $Apache::lonhomework::analyze{"$part_id.options"} },@opt);
183: } elsif ( $target eq 'grade') {
184: if ( defined $ENV{'form.submitted'}) {
185: my @whichopt = &whichfoils($max,$randomize);
186: my $temp=1;my $name;
187: my %responsehash;
188: my %grade;
189: my $right=0;
190: my $wrong=0;
191: my $ignored=0;
192: foreach $name (@whichopt) {
193: my $response=&Apache::response::getresponse($temp);
194: if ($ENV{'form.submitted'} eq 'scantron') {
195: $response = $opt[$response];
196: }
197: if ( $response =~ /[^\s]/) {
198: $responsehash{$name}=$response;
199: my $value=$Apache::response::foilgroup{$name.'.value'};
200: &Apache::lonxml::debug("submitted a $response for $value<br />\n");
201: if ($value eq $response) {
202: $grade{$name}='1'; $right++;
203: } else {
204: $grade{$name}='0'; $wrong++;
205: }
206: } else {
207: $ignored++;
208: }
209: $temp++;
210: }
211: my $part=$Apache::inputtags::part;
212: my $id = $Apache::inputtags::response['-1'];
213: my $responsestr=&Apache::lonnet::hash2str(%responsehash);
214: my $gradestr =&Apache::lonnet::hash2str(%grade);
215: my %previous=&Apache::response::check_for_previous($responsestr,
216: $part,$id);
217: &Apache::lonxml::debug("Got $right right and $wrong wrong, and $ignored were ignored");
218: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
219: $responsestr;
220: $Apache::lonhomework::results{"resource.$part.$id.submissiongrading"}=$gradestr;
221:
222: if (!$Apache::lonhomework::scantronmode) {
223: my $ad;
224: if ($wrong==0 && $ignored==0) {
225: $ad='EXACT_ANS';
226: } elsif ($wrong==0 && $right==0) {
227: #nothing submitted
228: } else {
229: if ($ignored==0) {
230: $ad='INCORRECT';
231: } else {
232: $ad='MISSING_ANSWER';
233: }
234: }
235: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
236: &Apache::response::handle_previous(\%previous,$ad);
237: } else {
238: my $ad;
239: if ($wrong==0 && $right==0) {
240: #nothing submitted
241: } else {
242: $ad='ASSIGNED_SCORE';
243: }
244: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
245: $Apache::lonhomework::results{"resource.$part.$id.awarded"}=
246: $right/(scalar(@whichopt));
247: $Apache::lonhomework::results{"resource.$part.$id.numfoils"}=
248: scalar(@whichopt);
249: }
250: }
251: }
252: &Apache::lonxml::increment_counter(&getfoilcounts($max));
253: } elsif ($target eq 'edit') {
254: $result.=&Apache::edit::end_table();
255: }
256: if ($target eq 'tex' and $Apache::lonhomework::type ne 'exam') {
257: $result .= '\end{enumerate}';
258: }
259: return $result;
260: }
261:
262: sub getfoilcounts {
263: my ($max)=@_;
264: # +1 since instructors will count from 1
265: my $count = $#{ $Apache::response::foilgroup{'names'} }+1;
266: if (&Apache::response::showallfoils()) { $max=$count; }
267: if ($count>$max) { $count=$max }
268: &Apache::lonxml::debug("Count is $count from $max");
269: return $count;
270: }
271:
272: sub whichfoils {
273: my ($max,$randomize)=@_;
274: return &Apache::response::whichorder($max,$randomize,
275: &Apache::response::showallfoils(),
276: \%Apache::response::foilgroup);
277: }
278:
279: sub displayanswers {
280: my ($max,$randomize,@opt)=@_;
281: if (!defined(@{ $Apache::response::foilgroup{'names'} })) {return;}
282: my @names = @{ $Apache::response::foilgroup{'names'} };
283: my @whichopt = &whichfoils($max,$randomize);
284: my $result=&Apache::response::answer_header('optionresponse');
285: foreach my $name (@whichopt) {
286: $result.=&Apache::response::answer_part('optionresponse',
287: $Apache::response::foilgroup{$name.'.value'})
288: }
289: $result.=&Apache::response::answer_footer('optionresponse');
290: return $result;
291: }
292:
293: sub check_for_invalid {
294: my ($names,$options) = @_;
295: my %bad_names;
296: foreach my $name (@{ $names }) {
297: my $value=$Apache::response::foilgroup{$name.'.value'};
298: my $found=0;
299: foreach my $option (@{ $options }) {
300: if ($value eq $option) { $found=1; }
301: }
302: if (!$found) { $bad_names{$name}=$value; }
303: }
304: if (%bad_names) {
305: my $error=&mt('The question can not be gotten correct, '.
306: 'the following foils in the <optionresponse> '.
307: 'have invalid correct options').' <br /><tt>'.
308: join('<br />',(map { $_=&mt("[_1] with value [_2]",$_,$bad_names{$_}) } (keys(%bad_names)))).
309: "</tt>";
310: &Apache::lonxml::error($error);
311: }
312: }
313:
314: sub displayfoils {
315: my ($target,$max,$randomize,$TeXlayout,@opt)=@_;
316: if (!defined(@{ $Apache::response::foilgroup{'names'} })) {return;}
317: my @names = @{ $Apache::response::foilgroup{'names'} };
318: my @truelist;
319: my @falselist;
320: my $result;
321: my $name;
322: my $displayoptionintex=1;
323: my @alphabet = ('A'..'Z');
324: my @whichopt = &whichfoils($max,$randomize);
325: &check_for_invalid(\@whichopt,\@opt);
326: my $part=$Apache::inputtags::part;
327: my $id=$Apache::inputtags::response[-1];
328: my $break;
329: my $solved=$Apache::lonhomework::history{"resource.$part.solved"};
330: if ( ($target ne 'tex') &&
331: &Apache::response::show_answer() ) {
332: my $temp=1;
333: foreach $name (@whichopt) {
334: my $text=$Apache::response::foilgroup{$name.'.text'};
335: my %lastresponse=&Apache::lonnet::str2hash($Apache::lonhomework::history{"resource.$part.$id.submission"});
336: my $lastopt=$lastresponse{$name};
337: if ($text!~/^\s*$/) { $break='<br />'; }
338: $result.=$break;
339: if ($target eq 'web') {
340: my $value=$Apache::response::foilgroup{$name.'.value'};
341: if (!($text=~s|<drawoptionlist\s*/>|$value|)) {
342: if ($text=~/^\s*$/) {
343: $text=$value.$text;
344: } else {
345: $text=$value.': '.$text;
346: }
347: } else {
348: $text='•'.$text;
349: }
350: $result.=$text."\n";
351: }
352: if ($Apache::lonhomework::type eq 'exam') {
353: $result.=&webbubbles(\@opt,\@alphabet,$temp,$lastopt);
354: }
355: $temp++;
356: }
357: } else {
358: my $temp=1;
359: my %lastresponse=&Apache::lonnet::str2hash($Apache::lonhomework::history{"resource.$part.$id.submission"});
360: my $internal_counter=$Apache::lonxml::counter;
361: foreach $name (@whichopt) {
362: my $text=$Apache::response::foilgroup{$name.'.text'};
363: if ($text!~/^\s*$/) {
364: if ($target eq 'tex') {
365: $break='\vskip 0 mm ';
366: } elsif ($target eq 'web') {
367: $break='<br />';
368: }
369: }
370: my $lastopt=$lastresponse{$name};
371: my $optionlist="<option></option>\n";
372: my $option;
373: foreach $option (@opt) {
374: if ($option eq $lastopt) {
375: $optionlist.="<option selected=\"on\">$option</option>\n";
376: } else {
377: $optionlist.="<option>$option</option>\n";
378: }
379: }
380: if ($target ne 'tex') {
381: if ($Apache::lonhomework::type ne 'exam') {
382: $optionlist='<select name="HWVAL_'.
383: $Apache::inputtags::response['-1'].':'.$temp.'">'.
384: $optionlist."</select>\n";
385: } else {
386: $optionlist='<u>'.(' 'x10).'</u>';
387: }
388: if ($text=~s|<drawoptionlist\s*/>|$optionlist|) {
389: if ($Apache::lonhomework::type ne 'exam') {
390: $text='•'.$text;
391: }
392: } else {
393: if ($Apache::lonhomework::type ne 'exam') {
394: $text=$optionlist.$text;
395: }
396: }
397: $result.=$break.$text."\n";
398: if ($Apache::lonhomework::type eq 'exam') {
399: $result.=&webbubbles(\@opt,\@alphabet,$temp,$lastopt);
400: }
401: $temp++;
402: } else {
403: my $texoptionlist='';
404: if ($displayoptionintex &&
405: $Apache::lonhomework::type ne 'exam') {
406: $texoptionlist = &optionlist_correction($TeXlayout,@opt);
407: }
408: if ($text=~/<drawoptionlist\s*\/>/) {
409: $text=~s|<drawoptionlist\s*/>| \\makebox\[0\.3in\]\[b\]\{\\hrulefill\} |;
410: }
411:
412: if ($text=~m/\\item /) {
413: if ($Apache::lonhomework::type eq 'exam') {
414: $text=~s/\\item/\\vskip 2 mm/;
415: }
416: $result.= $texoptionlist.$text;
417: } else {
418: if ($Apache::lonhomework::type eq 'exam') {
419: $result.= $texoptionlist.' '.$text;
420: } else {
421: if ($text=~/\S/) {$result.= $texoptionlist.'\vspace*{-2 mm}\item '.$text;} else {$result.= $texoptionlist;}
422: }
423: }
424: if ($Apache::lonhomework::type eq 'exam') {
425: $result.='\vskip -1 mm\noindent\begin{enumerate}\item[\textbf{'.
426: $internal_counter.'}.]'.&bubbles(\@alphabet,\@opt).
427: '\end{enumerate} \vskip -8 mm \strut ';
428: $internal_counter++;
429: }
430: $displayoptionintex=0;
431: }
432: }
433: }
434: if ($target ne 'tex') {
435: return $result.$break;
436: } else {
437: return $result;
438: }
439: }
440:
441:
442: sub optionlist_correction {
443: my ($TeXlayout,@options) = @_;
444: my $texoptionlist='\\item [] Choices: ';
445: if ($TeXlayout eq 'vertical') {$texoptionlist='\\item []';}
446: if (scalar(@options) > 0) {
447: foreach my $option (@options) {
448: $texoptionlist.='{\bf '.
449: &Apache::lonxml::latex_special_symbols($option).
450: '}';
451: if ($TeXlayout eq 'vertical') {
452: $texoptionlist.=' \vskip 0 mm ',
453: } else {
454: $texoptionlist.=',';
455: }
456: }
457: chop($texoptionlist);
458: if ($TeXlayout ne 'vertical') {$texoptionlist.='.';}
459: } else {
460: if ($TeXlayout ne 'vertical') {$texoptionlist='\\item [] \\vskip -5 mm';}
461: }
462: return $texoptionlist;
463: }
464:
465:
466: sub webbubbles {
467: my ($ropt,$ralphabet,$temp,$lastopt)=@_;
468: my @opt=@$ropt;
469: my @alphabet=@$ralphabet;
470: my $result='';
471: my $number_of_bubbles = $#opt + 1;
472: $result.= '<table border="1"><tr>';
473: for (my $ind=0;$ind<$number_of_bubbles;$ind++) {
474: my $checked='';
475: if ($lastopt eq $opt[$ind]) {
476: $checked=' checked="on" ';
477: }
478: $result.='<td><input type="radio" name="HWVAL_'.
479: $Apache::inputtags::response['-1'].':'.$temp.
480: '" value="'.$opt[$ind].'" '.$checked.' />'.$alphabet[$ind].': '.
481: $opt[$ind].'</td>';
482: }
483: $result.='</tr></table>';
484: return $result;
485: }
486:
487:
488: sub bubbles {
489: my ($ralphabit,$ropt) = @_;
490: my @alphabet = @$ralphabit;
491: my @opt = @$ropt;
492: my ($result,$head,$line) =('','','');
493: my $number_of_bubbles = $#opt + 1;
494: my $current_length = 0;
495: my $textwidth;
496: if ($ENV{'form.textwidth'} ne '') {
497: $ENV{'form.textwidth'}=~/(\d+)/;
498: $textwidth=$1;
499: } else {
500: $ENV{'textwidth'}=~/(\d*)\.?(\d*)/;
501: $textwidth=$1.'.'.$2;
502: }
503: for (my $ind=0;$ind<=$number_of_bubbles;$ind++) {
504: my $leftmargin;
505: $opt[$ind]=&Apache::lonxml::latex_special_symbols($opt[$ind]);
506: if ($ind==0) {$leftmargin=6;} else {$leftmargin=10;}
507: $current_length += (length($opt[$ind])+length($alphabet[$ind])+4)*2;
508: if ($current_length<($textwidth-$leftmargin) and $ind!=$number_of_bubbles) {
509: $line.='\hskip -1 mm {\small \textbf{'.$alphabet[$ind].'}}$\bigcirc$\hskip -1 mm & \hskip -3 mm {\small '.$opt[$ind].'} & ';
510: $head.='lr';
511: } else {
512: $line=~s/\&\s*$//;
513: $result.='\vskip -2 mm\noindent\begin{tabular}{'.$head.'}'.$line.'\\\\\end{tabular}\vskip 0 mm';
514: $line = '\hskip -1 mm {\small \textbf{'.$alphabet[$ind].'}}$\bigcirc$\hskip -1 mm & \hskip -3 mm {\small '.$opt[$ind].'} & ';;
515: $head ='lr';
516: $current_length = (length($opt[$ind])+length($alphabet[$ind]))*2;
517: }
518:
519: }
520: return $result;
521: }
522:
523:
524: sub start_conceptgroup {
525: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
526: $Apache::optionresponse::conceptgroup=1;
527: %Apache::response::conceptgroup=();
528: my $result;
529: if ($target eq 'edit') {
530: $result.=&Apache::edit::tag_start($target,$token,"Concept Grouped Foils");
531: $result.=&Apache::edit::text_arg('Concept:','concept',$token,'50').
532: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
533: }
534: if ($target eq 'modified') {
535: my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,'concept');
536: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
537: }
538: return $result;
539: }
540:
541: sub end_conceptgroup {
542: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
543: $Apache::optionresponse::conceptgroup=0;
544: my $result='';
545: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
546: $target eq 'tex' || $target eq 'analyze') {
547: #if not there aren't any foils to display and thus no question
548: &Apache::response::pick_foil_for_concept($target,
549: ['value','text','location'],
550: \%Apache::hint::option,
551: $parstack,$safeeval);
552: } elsif ($target eq 'edit') {
553: $result=&Apache::edit::end_table();
554: }
555: return $result;
556: }
557:
558: sub insert_conceptgroup {
559: my $result="\n\t\t<conceptgroup concept=\"\">".&insert_foil()."\n\t\t</conceptgroup>\n";
560: return $result;
561: }
562:
563: sub start_foil {
564: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
565: my $result='';
566: if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze' ) {
567: &Apache::lonxml::startredirection;
568: if ($target eq 'analyze') {
569: &Apache::response::check_if_computed($token,$parstack,$safeeval,'value');
570: }
571: } elsif ($target eq 'edit') {
572: $result=&Apache::edit::tag_start($target,$token,"Foil");
573: my $level='-2';
574: if ($$tagstack['-2'] eq 'conceptgroup') { $level = '-3'; }
575: my @opt;
576: eval '@opt ='.&Apache::lonxml::get_param('options',$parstack,$safeeval,$level);
577: $result.=&Apache::edit::text_arg('Name:','name',$token);
578: $result.= &Apache::edit::select_or_text_arg('Correct Option:','value',
579: ['unused',(@opt)],$token,'15');
580: my $randomize=&Apache::lonxml::get_param('randomize',$parstack,
581: $safeeval,'-3');
582: if ($randomize ne 'no') {
583: $result.=&Apache::edit::select_arg('Location:','location',
584: ['random','top','bottom'],$token);
585: }
586: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
587: } elsif ($target eq 'modified') {
588: my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
589: 'value','name','location');
590: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
591: }
592: return $result;
593: }
594:
595: sub end_foil {
596: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
597: my $text ='';
598: my $result = '';
599: if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
600: $text=&Apache::lonxml::endredirection;
601: $text=~/(\w)/;
602: if (($target eq 'tex') and ($Apache::lonhomework::type ne 'exam') and ($text=~/\S/)) {$text = '\vspace*{-2 mm}\item '.$text;}
603: }
604: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer'
605: || $target eq 'tex' || $target eq 'analyze') {
606: my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
607: if ($value ne 'unused') {
608: my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
609: &Apache::lonxml::debug("Got a name of :$name:");
610: if (!$name) { $name=$Apache::lonxml::curdepth; }
611: &Apache::lonxml::debug("Using a name of :$name:");
612: if (defined($Apache::response::foilnames{$name})) {
613: &Apache::lonxml::error(&mt("Foil name <b><tt>[_1]</tt></b> appears more than once. Foil names need to be unique.",$name));
614: }
615: $Apache::response::foilnames{$name}++;
616: my $location =&Apache::lonxml::get_param('location',$parstack,$safeeval);
617: if ( $Apache::optionresponse::conceptgroup
618: && !&Apache::response::showallfoils() ) {
619: push @{ $Apache::response::conceptgroup{'names'} }, $name;
620: $Apache::response::conceptgroup{"$name.value"} = $value;
621: if ($target eq 'tex' and $Apache::lonhomework::type eq 'exam') {
622: $Apache::response::conceptgroup{"$name.text"} = '\vskip 4 mm $\triangleright$ '.$text;
623: } else {
624: $Apache::response::conceptgroup{"$name.text"} = $text;
625: }
626: $Apache::response::conceptgroup{"$name.location"} = $location;
627: } else {
628: push @{ $Apache::response::foilgroup{'names'} }, $name;
629: $Apache::response::foilgroup{"$name.value"} = $value;
630: if ($target eq 'tex' and $Apache::lonhomework::type eq 'exam') {
631: $Apache::response::foilgroup{"$name.text"} = '\vskip 5 mm $\triangleright$ '.$text;
632: } else {
633: $Apache::response::foilgroup{"$name.text"} = $text;
634: }
635: $Apache::response::foilgroup{"$name.location"} = $location;
636: }
637: }
638: }
639: if ($target eq 'edit') {
640: $result.= &Apache::edit::tag_end($target,$token,'');
641: }
642: return $result;
643: }
644:
645: sub insert_foil {
646: return '
647: <foil name="" value="unused">
648: <startouttext />
649: <endouttext />
650: </foil>';
651: }
652: 1;
653: __END__
654:
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