1: # The LearningOnline Network with CAPA
2: # implements the tags that control the hints
3: #
4: # $Id: hint.pm,v 1.30 2002/10/28 23:31:48 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:
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[$#$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: }
127: return $result;
128: }
129:
130: sub end_numericalhint {
131: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
132: my $result;
133: if ($target eq 'web') {
134: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
135: my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
136: &Apache::response::setup_params('numericalhint');
137: my $partid=$Apache::inputtags::part;
138: my $id=$Apache::inputtags::response['-1'];
139: #id submissions occured under
140: my $submitid=$Apache::inputtags::response['-2'];
141: my $response = $Apache::lonhomework::history{
142: "resource.$partid.$submitid.submission"};
143: &Apache::lonxml::debug("hintgroup is using $response<br />\n");
144: #build safe space expression
145: my $expression="&caparesponse_check_list('".$response."','".
146: $$parstack[$#$parstack];
147: #need to get all possible parms
148: foreach my $key (keys(%Apache::inputtags::params)) {
149: $expression.= ';my $'. #'
150: $key.'="'.$Apache::inputtags::params{$key}.'"';
151: }
152: $expression.="');";
153: $result = &Apache::run::run($expression,$safeeval);
154: &Apache::lonxml::debug("$expression:result:$result:$Apache::lonxml::curdepth");
155: my ($awards) = split /:/ , $result;
156: my ($ad) = &Apache::inputtags::finalizeawards(split /,/ , $awards);
157: if ($ad eq 'EXACT_ANS' || $ad eq 'APPROX_ANS') { push (@Apache::hint::which,$name); }
158: $result='';
159: } elsif ($target eq 'meta') {
160: $result=&Apache::response::meta_package_write('numericalhint');
161: } elsif ($target eq 'edit') {
162: $result.='</td></tr>'.&Apache::edit::end_table;
163: }
164: &Apache::response::end_hintresponse();
165: return $result;
166: }
167:
168: sub start_stringhint {
169: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
170: my $result;
171: if ($target eq 'meta') {
172: $result=&Apache::response::meta_package_write('stringhint');
173: } else {
174: $result.=&start_numericalhint(@_);
175: }
176: return $result;
177: }
178:
179: sub end_stringhint {
180: return end_numericalhint(@_);
181: }
182:
183: sub start_formulahint {
184: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
185: my $result;
186: if ($target eq 'meta') {
187: $result=&Apache::response::meta_package_write('formulahint');
188: } else {
189: $result.=&start_numericalhint(@_);
190: }
191: return $result;
192: }
193:
194: sub end_formulahint {
195: return end_numericalhint(@_);
196: }
197:
198: # a part shows if it is on, if no specific parts are on, then default shows
199: sub start_hintpart {
200: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
201:
202: my $show ='0';
203: my $result = '';
204: if ($target eq 'web') {
205: my $on= &Apache::lonxml::get_param('on',$parstack,$safeeval);
206: &Apache::lonxml::debug("hintpart sees $on and ,$#Apache::hint::which");
207: if ( $on eq 'default' && $#Apache::hint::which == '-1') {
208: $show=1;
209: } else {
210: my $which;
211: foreach $which (@Apache::hint::which) { if ($which eq $on) { $show = 1; last } }
212: }
213: if (!$show) {
214: &Apache::lonxml::get_all_text("/hintpart",$$parser[$#$parser]);
215: }
216: } elsif ($target eq 'grade') {
217: &Apache::lonxml::get_all_text("/hintpart",$$parser[$#$parser]);
218: } elsif ($target eq 'edit') {
219: $result.= &Apache::edit::tag_start($target,$token);
220: $result.= &Apache::edit::text_arg('On:','on',$token);
221: $result.= &Apache::edit::end_row();
222: $result.= &Apache::edit::start_spanning_row();
223: } elsif ($target eq 'modified') {
224: my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
225: 'on');
226: if ($constructtag) {
227: $result = &Apache::edit::rebuild_tag($token);
228: $result.=&Apache::edit::handle_insert();
229: }
230: }
231: return $result;
232: }
233:
234: sub end_hintpart {
235: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
236: my $result;
237: if ($target eq 'edit') { $result.=&Apache::edit::end_table; }
238: return $result;
239: }
240:
241: sub start_optionhint {
242: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
243: my $result;
244: &Apache::response::start_hintresponse($parstack,$safeeval);
245: if ($target eq 'edit') {
246: $result.=&Apache::edit::tag_start($target,$token);
247: $result.=&Apache::edit::text_arg('Name:','name',$token);
248: $result.=&Apache::edit::text_arg('Answer:','answer',$token,40);
249: $result.=&Apache::edit::text_arg('Concept:','concept',$token,50);
250: } elsif ($target eq 'modified') {
251: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
252: $safeeval,'name',
253: 'answer','concept');
254: if ($constructtag) {
255: $result = &Apache::edit::rebuild_tag($token);
256: $result .= &Apache::edit::handle_insert();
257: }
258: } elsif ($target eq 'meta') {
259: $result=&Apache::response::meta_package_write('numericalhint');
260: }
261: return $result;
262: }
263:
264: sub end_optionhint {
265: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
266: my $result;
267: if ($target eq 'web') {
268: my ($foilmatch,$conceptmatch)=(-1,-1);
269: my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
270: my $partid=$Apache::inputtags::part;
271: #id submissions occured under
272: my $submitid=$Apache::inputtags::response['-2'];
273: my $part_id="$partid.$submitid";
274: my %answer;
275: my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
276: if ($answer) {
277: eval('%answer ='.$answer);
278: &Apache::lonhomework::showhash(%answer);
279: my $response = $Apache::lonhomework::history{
280: "resource.$part_id.submission"};
281: my %response=&Apache::lonnet::str2hash($response);
282: &Apache::lonhomework::showhash(%response);
283: foreach my $foil (keys(%answer)) {
284: $foilmatch=1;
285: if ($answer{$foil} ne $response{$foil}) {$foilmatch=0;last;}
286: }
287: }
288: my %concept;
289: my $constr=&Apache::lonxml::get_param('concept',$parstack,$safeeval);
290: if ( $constr ) { eval('%concept ='.$constr); }
291: my $response = $Apache::lonhomework::history{
292: "resource.$part_id.submissiongrading"};
293: my %response=&Apache::lonnet::str2hash($response);
294: foreach my $concept (keys(%concept)) {
295: my $compare;
296: if ($concept{$concept} eq 'correct') {$compare=1}else{$compare=0}
297: $conceptmatch=1;
298: if (ref($Apache::hint::option{"$part_id.concepts"})) {
299: foreach my $foil (@{ $Apache::hint::option{"$part_id.concept.$concept"} }) {
300: &Apache::lonxml::debug("compare -$foil- -$response{$foil}-$compare-");
301: if ( exists($response{$foil}) &&
302: $response{$foil} ne $compare) {$conceptmatch=0;last;}
303: }
304: } else {
305: $conceptmatch=0;
306: }
307: if ($conceptmatch eq '0') { last; }
308: }
309: if ( ($conceptmatch eq '-1' || $conceptmatch eq '1') &&
310: ($foilmatch eq '-1' || $foilmatch eq '1') ) {
311: push(@Apache::hint::which,$name);
312: }
313: } elsif ($target eq 'edit') { $result.=&Apache::edit::end_table; }
314: if ($target eq 'edit') { $result.=&Apache::edit::end_table; }
315: &Apache::response::end_hintresponse();
316: return $result;
317: }
318:
319: sub start_radiobuttonhint {
320: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
321: my $result;
322: &Apache::response::start_hintresponse($parstack,$safeeval);
323: if ($target eq 'edit') {
324: $result.=&Apache::edit::tag_start($target,$token);
325: $result.=&Apache::edit::text_arg('Name:','name',$token);
326: $result.=&Apache::edit::text_arg('Answer:','answer',$token);
327: } elsif ($target eq 'modified') {
328: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
329: $safeeval,'name',
330: 'answer');
331: if ($constructtag) {
332: $result = &Apache::edit::rebuild_tag($token);
333: $result .= &Apache::edit::handle_insert();
334: }
335: } elsif ($target eq 'meta') {
336: $result=&Apache::response::meta_package_write('numericalhint');
337: }
338: return $result;
339: }
340:
341: sp;&end_radiobuttonhint {
342: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
343: my $result;
344: if ($target eq 'web') {
345: my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
346: my @answer;
347: my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
348: eval('@answer ='.$answer);
349: my $partid=$Apache::inputtags::part;
350: #id submissions occured under
351: my $submitid=$Apache::inputtags::response['-2'];
352: my $part_id="$partid.$submitid";
353: my $response = $Apache::lonhomework::history{
354: "resource.$part_id.submission"};
355: ($response)=&Apache::lonnet::str2hash($response);
356: if ($answer[0] eq 'foil' && $response eq $answer[1]) {
357: push (@Apache::hint::which,$name);
358: } elsif ($answer[0] eq 'concept') {
359: if (ref($Apache::hint::radiobutton{"$part_id.concept.".$answer[1]})) {
360: my @names=@{ $Apache::hint::radiobutton{"$part_id.concept.".$answer[1]} };
361: if (grep(/^\Q$response\E$/,@names)) {
362: push(@Apache::hint::which,$name);
363: }
364: }
365: }
366: } elsif ($target eq 'edit') { $result.=&Apache::edit::end_table; }
367: &Apache::response::end_hintresponse();
368: return $result;
369: }
370: 1;
371: __END__
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