1: # The LearningOnline Network with CAPA
2: # implements the tags that control the hints
3: #
4: # $Id: hint.pm,v 1.35 2003/02/13 23:48:27 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 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: $result.=&Apache::edit::text_arg('Format:','format',$token,4);
103: } elsif ($token->[1] eq 'stringhint') {
104: $result.=&Apache::edit::select_arg('Type:','type',['cs','ci','mc'],$token);
105: } elsif ($token->[1] eq 'formulahint') {
106: $result.=&Apache::edit::text_arg('Sample Points:','samples',$token,40);
107: }
108: $result.=&Apache::edit::end_row();
109: $result.=&Apache::edit::start_spanning_row();
110: } elsif ($target eq 'modified') {
111: my $constructtag;
112: if ($token->[1] eq 'numericalhint') {
113: $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
114: 'name','answer','unit','format');
115: } elsif ($token->[1] eq 'stringhint') {
116: $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
117: 'name','answer','type');
118: } elsif ($token->[1] eq 'formulahint') {
119: $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
120: 'name','answer','samples');
121: }
122: if ($constructtag) {
123: $result = &Apache::edit::rebuild_tag($token);
124: $result .= &Apache::edit::handle_insert();
125: }
126: } elsif ($target eq 'web') {
127: &Apache::response::reset_params();
128: }
129: return $result;
130: }
131:
132: sub end_numericalhint {
133: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
134: my $result;
135: if ($target eq 'web') {
136: if (!$Apache::lonxml::default_homework_loaded) {
137: &Apache::lonxml::default_homework_load($safeeval);
138: }
139: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
140: my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
141: &Apache::response::setup_params('numericalhint');
142: my $partid=$Apache::inputtags::part;
143: my $id=$Apache::inputtags::response['-1'];
144: #id submissions occured under
145: my $submitid=$Apache::inputtags::response['-2'];
146: my $response = $Apache::lonhomework::history{
147: "resource.$partid.$submitid.submission"};
148: &Apache::lonxml::debug("hintgroup is using $response<br />\n");
149: #build safe space expression
150: my $expression="&caparesponse_check_list('".$response."','".
151: $$parstack[$#$parstack];
152: #need to get all possible parms
153: foreach my $key (keys(%Apache::inputtags::params)) {
154: $expression.= ';my $'. #'
155: $key.'="'.$Apache::inputtags::params{$key}.'"';
156: }
157: $expression.="');";
158: $result = &Apache::run::run($expression,$safeeval);
159: &Apache::lonxml::debug("$expression:result:$result:$Apache::lonxml::curdepth");
160: my ($awards) = split /:/ , $result;
161: my ($ad) = &Apache::inputtags::finalizeawards(split /,/ , $awards);
162: if ($ad eq 'EXACT_ANS' || $ad eq 'APPROX_ANS') { push (@Apache::hint::which,$name); }
163: $result='';
164: } elsif ($target eq 'meta') {
165: $result=&Apache::response::meta_package_write($token->[1]);
166: } elsif ($target eq 'edit') {
167: $result.='</td></tr>'.&Apache::edit::end_table;
168: }
169: &Apache::response::end_hintresponse();
170: return $result;
171: }
172:
173: sub start_stringhint {
174: return &start_numericalhint(@_);
175: }
176:
177: sub end_stringhint {
178: return &end_numericalhint(@_);
179: }
180:
181: sub start_formulahint {
182: return &start_numericalhint(@_);
183: }
184:
185: sub end_formulahint {
186: return end_numericalhint(@_);
187: }
188:
189: # a part shows if it is on, if no specific parts are on, then default shows
190: sub start_hintpart {
191: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
192:
193: my $show ='0';
194: my $result = '';
195: if ($target eq 'web') {
196: my $on= &Apache::lonxml::get_param('on',$parstack,$safeeval);
197: &Apache::lonxml::debug("hintpart sees $on and ,$#Apache::hint::which");
198: if ( $on eq 'default' && $#Apache::hint::which == '-1') {
199: $show=1;
200: } else {
201: my $which;
202: foreach $which (@Apache::hint::which) { if ($which eq $on) { $show = 1; last } }
203: }
204: if (!$show) {
205: &Apache::lonxml::get_all_text("/hintpart",$parser);
206: }
207: } elsif ($target eq 'grade') {
208: &Apache::lonxml::get_all_text("/hintpart",$parser);
209: } elsif ($target eq 'edit') {
210: $result.= &Apache::edit::tag_start($target,$token);
211: $result.= &Apache::edit::text_arg('On:','on',$token);
212: $result.= &Apache::edit::end_row();
213: $result.= &Apache::edit::start_spanning_row();
214: } elsif ($target eq 'modified') {
215: my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
216: 'on');
217: if ($constructtag) {
218: $result = &Apache::edit::rebuild_tag($token);
219: $result.=&Apache::edit::handle_insert();
220: }
221: }
222: return $result;
223: }
224:
225: sub end_hintpart {
226: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
227: my $result;
228: if ($target eq 'edit') { $result.=&Apache::edit::end_table; }
229: return $result;
230: }
231:
232: sub start_optionhint {
233: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
234: my $result;
235: &Apache::response::start_hintresponse($parstack,$safeeval);
236: if ($target eq 'edit') {
237: $result.=&Apache::edit::tag_start($target,$token);
238: $result.=&Apache::edit::text_arg('Name:','name',$token);
239: $result.=&Apache::edit::text_arg('Answer:','answer',$token,40);
240: $result.=&Apache::edit::text_arg('Concept:','concept',$token,50);
241: } elsif ($target eq 'modified') {
242: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
243: $safeeval,'name',
244: 'answer','concept');
245: if ($constructtag) {
246: $result = &Apache::edit::rebuild_tag($token);
247: $result .= &Apache::edit::handle_insert();
248: }
249: } elsif ($target eq 'meta') {
250: $result=&Apache::response::meta_package_write('numericalhint');
251: }
252: return $result;
253: }
254:
255: sub end_optionhint {
256: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
257: my $result;
258: if ($target eq 'web') {
259: my ($foilmatch,$conceptmatch)=(-1,-1);
260: my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
261: my $partid=$Apache::inputtags::part;
262: #id submissions occured under
263: my $submitid=$Apache::inputtags::response['-2'];
264: my $part_id="$partid.$submitid";
265: my %answer;
266: my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
267: if ($answer) {
268: eval('%answer ='.$answer);
269: &Apache::lonhomework::showhash(%answer);
270: my $response = $Apache::lonhomework::history{
271: "resource.$part_id.submission"};
272: my %response=&Apache::lonnet::str2hash($response);
273: &Apache::lonhomework::showhash(%response);
274: foreach my $foil (keys(%answer)) {
275: $foilmatch=1;
276: if ($answer{$foil} ne $response{$foil}) {$foilmatch=0;last;}
277: }
278: }
279: my %concept;
280: my $constr=&Apache::lonxml::get_param('concept',$parstack,$safeeval);
281: if ( $constr ) { eval('%concept ='.$constr); }
282: my $response = $Apache::lonhomework::history{
283: "resource.$part_id.submissiongrading"};
284: my %response=&Apache::lonnet::str2hash($response);
285: foreach my $concept (keys(%concept)) {
286: my $compare;
287: if ($concept{$concept} eq 'correct') {$compare=1}else{$compare=0}
288: $conceptmatch=1;
289: if (ref($Apache::hint::option{"$part_id.concepts"})) {
290: foreach my $foil (@{ $Apache::hint::option{"$part_id.concept.$concept"} }) {
291: &Apache::lonxml::debug("compare -$foil- -$response{$foil}-$compare-");
292: if ( exists($response{$foil}) &&
293: $response{$foil} ne $compare) {$conceptmatch=0;last;}
294: }
295: } else {
296: $conceptmatch=0;
297: }
298: if ($conceptmatch eq '0') { last; }
299: }
300: if ( ($conceptmatch eq '-1' || $conceptmatch eq '1') &&
301: ($foilmatch eq '-1' || $foilmatch eq '1') ) {
302: push(@Apache::hint::which,$name);
303: }
304: } elsif ($target eq 'edit') { $result.=&Apache::edit::end_table; }
305: if ($target eq 'edit') { $result.=&Apache::edit::end_table; }
306: &Apache::response::end_hintresponse();
307: return $result;
308: }
309:
310: sub start_radiobuttonhint {
311: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
312: my $result;
313: &Apache::response::start_hintresponse($parstack,$safeeval);
314: if ($target eq 'edit') {
315: $result.=&Apache::edit::tag_start($target,$token);
316: $result.=&Apache::edit::text_arg('Name:','name',$token);
317: $result.=&Apache::edit::text_arg('Answer:','answer',$token);
318: } elsif ($target eq 'modified') {
319: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
320: $safeeval,'name',
321: 'answer');
322: if ($constructtag) {
323: $result = &Apache::edit::rebuild_tag($token);
324: $result .= &Apache::edit::handle_insert();
325: }
326: } elsif ($target eq 'meta') {
327: $result=&Apache::response::meta_package_write('numericalhint');
328: }
329: return $result;
330: }
331:
332: sub end_radiobuttonhint {
333: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
334: my $result;
335: if ($target eq 'web') {
336: my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
337: my @answer;
338: my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
339: eval('@answer ='.$answer);
340: my $partid=$Apache::inputtags::part;
341: #id submissions occured under
342: my $submitid=$Apache::inputtags::response['-2'];
343: my $part_id="$partid.$submitid";
344: my $response = $Apache::lonhomework::history{
345: "resource.$part_id.submission"};
346: ($response)=&Apache::lonnet::str2hash($response);
347: if ($answer[0] eq 'foil' && $response eq $answer[1]) {
348: push (@Apache::hint::which,$name);
349: } elsif ($answer[0] eq 'concept') {
350: if (ref($Apache::hint::radiobutton{"$part_id.concept.".$answer[1]})) {
351: my @names=@{ $Apache::hint::radiobutton{"$part_id.concept.".$answer[1]} };
352: if (grep(/^\Q$response\E$/,@names)) {
353: push(@Apache::hint::which,$name);
354: }
355: }
356: }
357: } elsif ($target eq 'edit') { $result.=&Apache::edit::end_table; }
358: &Apache::response::end_hintresponse();
359: return $result;
360: }
361: 1;
362: __END__
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