1: # The LearningOnline Network with CAPA
2: # implements the tags that control the hints
3: #
4: # $Id: hint.pm,v 1.36 2003/02/23 20:37:56 www Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA me&aree 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::hinttags;
30:
31: use strict;
32: use Apache::lonnet;
33: use capa;
34:
35: BEGIN {
36: &Apache::lonxml::register('Apache::hinttags',('hintgroup','hintpart','numericalhint','stringhint','formulahint','optionhint','radiobuttonhint'));
37: }
38:
39:
40: @Apache::hint::which=();
41: sub start_hintgroup {
42: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
43: my $skiptoend='0';
44: my $result;
45:
46: if ($target eq 'web') {
47: my $id=$Apache::inputtags::part;
48: my $numtries=$Apache::lonhomework::history{"resource.$id.tries"};
49: if ( $numtries eq '') { $numtries = 0; }
50: my $hinttries=&Apache::lonnet::EXT("resource.$id.hinttries");
51: if ( $hinttries eq '') { $hinttries = 1; }
52: &Apache::lonxml::debug("found :$id:$numtries:$hinttries:");
53: if ( $numtries < $hinttries ) {
54: $skiptoend='1';
55: } else {
56: if ($target eq 'web') {$result='<table bgcolor="#dddddd"><tr><td>';}
57: }
58: if ($skiptoend) {
59: &Apache::lonxml::get_all_text("/hintgroup",$parser);
60: }
61: } elsif ($target eq 'tex') {
62: $result .= '\keephidden{';
63: }
64: @Apache::hint::which=();
65: return $result;
66: }
67:
68: sub end_hintgroup {
69: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
70: my $result;
71:
72: if ($target eq 'web') {
73: my $id=$Apache::inputtags::part;
74: my $numtries=$Apache::lonhomework::history{"resource.$id.tries"};
75: if ( $numtries eq '') { $numtries = 0; }
76: my $hinttries=&Apache::lonnet::EXT("resource.$id.hinttries");
77: if ( $hinttries eq '') { $hinttries = 1; }
78: &Apache::lonxml::debug("found :$id:$numtries:$hinttries:");
79: if ( $numtries >= $hinttries ) {
80: $result='</td></tr></table>';
81: }
82: } elsif ($target eq 'edit') {
83: $result.=&Apache::edit::end_table();
84: } elsif ($target eq 'tex') {
85: $result .= '}';
86: }
87: @Apache::hint::which=();
88: return $result;
89: }
90:
91: sub start_numericalhint {
92: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
93: #do everything in end, so intervening <responseparams> work
94: &Apache::response::start_hintresponse($parstack,$safeeval);
95: my $result;
96: if ($target eq 'edit') {
97: $result.=&Apache::edit::tag_start($target,$token);
98: $result.=&Apache::edit::text_arg('Name:','name',$token);
99: $result.=&Apache::edit::text_arg('Answer:','answer',$token);
100: if ($token->[1] eq 'numericalhint') {
101: $result.=&Apache::edit::text_arg('Unit:','unit',$token,5).
102: &Apache::loncommon::help_open_topic('Physical_Units');
103: $result.=&Apache::edit::text_arg('Format:','format',$token,4).
104: &Apache::loncommon::help_open_topic('Numerical_Response_Format');
105: } elsif ($token->[1] eq 'stringhint') {
106: $result.=&Apache::edit::select_arg('Type:','type',['cs','ci','mc'],$token);
107: } elsif ($token->[1] eq 'formulahint') {
108: $result.=&Apache::edit::text_arg('Sample Points:','samples',$token,40);
109: }
110: $result.=&Apache::edit::end_row();
111: $result.=&Apache::edit::start_spanning_row();
112: } elsif ($target eq 'modified') {
113: my $constructtag;
114: if ($token->[1] eq 'numericalhint') {
115: $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
116: 'name','answer','unit','format');
117: } elsif ($token->[1] eq 'stringhint') {
118: $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
119: 'name','answer','type');
120: } elsif ($token->[1] eq 'formulahint') {
121: $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
122: 'name','answer','samples');
123: }
124: if ($constructtag) {
125: $result = &Apache::edit::rebuild_tag($token);
126: $result .= &Apache::edit::handle_insert();
127: }
128: } elsif ($target eq 'web') {
129: &Apache::response::reset_params();
130: }
131: return $result;
132: }
133:
134: sub end_numericalhint {
135: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
136: my $result;
137: if ($target eq 'web') {
138: if (!$Apache::lonxml::default_homework_loaded) {
139: &Apache::lonxml::default_homework_load($safeeval);
140: }
141: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
142: my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
143: &Apache::response::setup_params('numericalhint');
144: my $partid=$Apache::inputtags::part;
145: my $id=$Apache::inputtags::response['-1'];
146: #id submissions occured under
147: my $submitid=$Apache::inputtags::response['-2'];
148: my $response = $Apache::lonhomework::history{
149: "resource.$partid.$submitid.submission"};
150: &Apache::lonxml::debug("hintgroup is using $response<br />\n");
151: #build safe space expression
152: my $expression="&caparesponse_check_list('".$response."','".
153: $$parstack[$#$parstack];
154: #need to get all possible parms
155: foreach my $key (keys(%Apache::inputtags::params)) {
156: $expression.= ';my $'. #'
157: $key.'="'.$Apache::inputtags::params{$key}.'"';
158: }
159: $expression.="');";
160: $result = &Apache::run::run($expression,$safeeval);
161: &Apache::lonxml::debug("$expression:result:$result:$Apache::lonxml::curdepth");
162: my ($awards) = split /:/ , $result;
163: my ($ad) = &Apache::inputtags::finalizeawards(split /,/ , $awards);
164: if ($ad eq 'EXACT_ANS' || $ad eq 'APPROX_ANS') { push (@Apache::hint::which,$name); }
165: $result='';
166: } elsif ($target eq 'meta') {
167: $result=&Apache::response::meta_package_write($token->[1]);
168: } elsif ($target eq 'edit') {
169: $result.='</td></tr>'.&Apache::edit::end_table;
170: }
171: &Apache::response::end_hintresponse();
172: return $result;
173: }
174:
175: sub start_stringhint {
176: return &start_numericalhint(@_);
177: }
178:
179: sub end_stringhint {
180: return &end_numericalhint(@_);
181: }
182:
183: sub start_formulahint {
184: return &start_numericalhint(@_);
185: }
186:
187: sub end_formulahint {
188: return end_numericalhint(@_);
189: }
190:
191: # a part shows if it is on, if no specific parts are on, then default shows
192: sub start_hintpart {
193: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
194:
195: my $show ='0';
196: my $result = '';
197: if ($target eq 'web') {
198: my $on= &Apache::lonxml::get_param('on',$parstack,$safeeval);
199: &Apache::lonxml::debug("hintpart sees $on and ,$#Apache::hint::which");
200: if ( $on eq 'default' && $#Apache::hint::which == '-1') {
201: $show=1;
202: } else {
203: my $which;
204: foreach $which (@Apache::hint::which) { if ($which eq $on) { $show = 1; last } }
205: }
206: if (!$show) {
207: &Apache::lonxml::get_all_text("/hintpart",$parser);
208: }
209: } elsif ($target eq 'grade') {
210: &Apache::lonxml::get_all_text("/hintpart",$parser);
211: } elsif ($target eq 'edit') {
212: $result.= &Apache::edit::tag_start($target,$token);
213: $result.= &Apache::edit::text_arg('On:','on',$token);
214: $result.= &Apache::edit::end_row();
215: $result.= &Apache::edit::start_spanning_row();
216: } elsif ($target eq 'modified') {
217: my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
218: 'on');
219: if ($constructtag) {
220: $result = &Apache::edit::rebuild_tag($token);
221: $result.=&Apache::edit::handle_insert();
222: }
223: }
224: return $result;
225: }
226:
227: sub end_hintpart {
228: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
229: my $result;
230: if ($target eq 'edit') { $result.=&Apache::edit::end_table; }
231: return $result;
232: }
233:
234: sub start_optionhint {
235: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
236: my $result;
237: &Apache::response::start_hintresponse($parstack,$safeeval);
238: if ($target eq 'edit') {
239: $result.=&Apache::edit::tag_start($target,$token);
240: $result.=&Apache::edit::text_arg('Name:','name',$token);
241: $result.=&Apache::edit::text_arg('Answer:','answer',$token,40);
242: $result.=&Apache::edit::text_arg('Concept:','concept',$token,50);
243: } elsif ($target eq 'modified') {
244: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
245: $safeeval,'name',
246: 'answer','concept');
247: if ($constructtag) {
248: $result = &Apache::edit::rebuild_tag($token);
249: $result .= &Apache::edit::handle_insert();
250: }
251: } elsif ($target eq 'meta') {
252: $result=&Apache::response::meta_package_write('numericalhint');
253: }
254: return $result;
255: }
256:
257: sub end_optionhint {
258: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
259: my $result;
260: if ($target eq 'web') {
261: my ($foilmatch,$conceptmatch)=(-1,-1);
262: my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
263: my $partid=$Apache::inputtags::part;
264: #id submissions occured under
265: my $submitid=$Apache::inputtags::response['-2'];
266: my $part_id="$partid.$submitid";
267: my %answer;
268: my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
269: if ($answer) {
270: eval('%answer ='.$answer);
271: &Apache::lonhomework::showhash(%answer);
272: my $response = $Apache::lonhomework::history{
273: "resource.$part_id.submission"};
274: my %response=&Apache::lonnet::str2hash($response);
275: &Apache::lonhomework::showhash(%response);
276: foreach my $foil (keys(%answer)) {
277: $foilmatch=1;
278: if ($answer{$foil} ne $response{$foil}) {$foilmatch=0;last;}
279: }
280: }
281: my %concept;
282: my $constr=&Apache::lonxml::get_param('concept',$parstack,$safeeval);
283: if ( $constr ) { eval('%concept ='.$constr); }
284: my $response = $Apache::lonhomework::history{
285: "resource.$part_id.submissiongrading"};
286: my %response=&Apache::lonnet::str2hash($response);
287: foreach my $concept (keys(%concept)) {
288: my $compare;
289: if ($concept{$concept} eq 'correct') {$compare=1}else{$compare=0}
290: $conceptmatch=1;
291: if (ref($Apache::hint::option{"$part_id.concepts"})) {
292: foreach my $foil (@{ $Apache::hint::option{"$part_id.concept.$concept"} }) {
293: &Apache::lonxml::debug("compare -$foil- -$response{$foil}-$compare-");
294: if ( exists($response{$foil}) &&
295: $response{$foil} ne $compare) {$conceptmatch=0;last;}
296: }
297: } else {
298: $conceptmatch=0;
299: }
300: if ($conceptmatch eq '0') { last; }
301: }
302: if ( ($conceptmatch eq '-1' || $conceptmatch eq '1') &&
303: ($foilmatch eq '-1' || $foilmatch eq '1') ) {
304: push(@Apache::hint::which,$name);
305: }
306: } elsif ($target eq 'edit') { $result.=&Apache::edit::end_table; }
307: if ($target eq 'edit') { $result.=&Apache::edit::end_table; }
308: &Apache::response::end_hintresponse();
309: return $result;
310: }
311:
312: sub start_radiobuttonhint {
313: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
314: my $result;
315: &Apache::response::start_hintresponse($parstack,$safeeval);
316: if ($target eq 'edit') {
317: $result.=&Apache::edit::tag_start($target,$token);
318: $result.=&Apache::edit::text_arg('Name:','name',$token);
319: $result.=&Apache::edit::text_arg('Answer:','answer',$token);
320: } elsif ($target eq 'modified') {
321: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
322: $safeeval,'name',
323: 'answer');
324: if ($constructtag) {
325: $result = &Apache::edit::rebuild_tag($token);
326: $result .= &Apache::edit::handle_insert();
327: }
328: } elsif ($target eq 'meta') {
329: $result=&Apache::response::meta_package_write('numericalhint');
330: }
331: return $result;
332: }
333:
334: sub end_radiobuttonhint {
335: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
336: my $result;
337: if ($target eq 'web') {
338: my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
339: my @answer;
340: my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
341: eval('@answer ='.$answer);
342: my $partid=$Apache::inputtags::part;
343: #id submissions occured under
344: my $submitid=$Apache::inputtags::response['-2'];
345: my $part_id="$partid.$submitid";
346: my $response = $Apache::lonhomework::history{
347: "resource.$part_id.submission"};
348: ($response)=&Apache::lonnet::str2hash($response);
349: if ($answer[0] eq 'foil' && $response eq $answer[1]) {
350: push (@Apache::hint::which,$name);
351: } elsif ($answer[0] eq 'concept') {
352: if (ref($Apache::hint::radiobutton{"$part_id.concept.".$answer[1]})) {
353: my @names=@{ $Apache::hint::radiobutton{"$part_id.concept.".$answer[1]} };
354: if (grep(/^\Q$response\E$/,@names)) {
355: push(@Apache::hint::which,$name);
356: }
357: }
358: }
359: } elsif ($target eq 'edit') { $result.=&Apache::edit::end_table; }
360: &Apache::response::end_hintresponse();
361: return $result;
362: }
363: 1;
364: __END__
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