1: # The LearningOnline Network with CAPA
2: # implements the tags that control the hints
3: #
4: # $Id: hint.pm,v 1.37 2003/04/02 18:51:11 sakharuk 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' && $Apache::lonhomework::type ne 'exam') {
57: $result='<table bgcolor="#dddddd"><tr><td>';
58: } elsif ($Apache::lonhomework::type eq 'exam') {
59: &Apache::lonxml::startredirection;
60: }
61: }
62: if ($skiptoend) {
63: &Apache::lonxml::get_all_text("/hintgroup",$parser);
64: }
65: } elsif ($target eq 'tex') {
66: $result .= '\keephidden{';
67: }
68: @Apache::hint::which=();
69: return $result;
70: }
71:
72: sub end_hintgroup {
73: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
74: my $result;
75:
76: if ($target eq 'web') {
77: my $id=$Apache::inputtags::part;
78: my $numtries=$Apache::lonhomework::history{"resource.$id.tries"};
79: if ( $numtries eq '') { $numtries = 0; }
80: my $hinttries=&Apache::lonnet::EXT("resource.$id.hinttries");
81: if ( $hinttries eq '') { $hinttries = 1; }
82: &Apache::lonxml::debug("found :$id:$numtries:$hinttries:");
83: if ( $numtries >= $hinttries && $Apache::lonhomework::type ne 'exam') {
84: $result='</td></tr></table>';
85: } elsif ($Apache::lonhomework::type eq 'exam') {
86: my $garbage = &Apache::lonxml::endredirection;
87: }
88: } elsif ($target eq 'edit') {
89: $result.=&Apache::edit::end_table();
90: } elsif ($target eq 'tex') {
91: $result .= '}';
92: }
93: @Apache::hint::which=();
94: return $result;
95: }
96:
97: sub start_numericalhint {
98: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
99: #do everything in end, so intervening <responseparams> work
100: &Apache::response::start_hintresponse($parstack,$safeeval);
101: my $result;
102: if ($target eq 'edit') {
103: $result.=&Apache::edit::tag_start($target,$token);
104: $result.=&Apache::edit::text_arg('Name:','name',$token);
105: $result.=&Apache::edit::text_arg('Answer:','answer',$token);
106: if ($token->[1] eq 'numericalhint') {
107: $result.=&Apache::edit::text_arg('Unit:','unit',$token,5).
108: &Apache::loncommon::help_open_topic('Physical_Units');
109: $result.=&Apache::edit::text_arg('Format:','format',$token,4).
110: &Apache::loncommon::help_open_topic('Numerical_Response_Format');
111: } elsif ($token->[1] eq 'stringhint') {
112: $result.=&Apache::edit::select_arg('Type:','type',['cs','ci','mc'],$token);
113: } elsif ($token->[1] eq 'formulahint') {
114: $result.=&Apache::edit::text_arg('Sample Points:','samples',$token,40);
115: }
116: $result.=&Apache::edit::end_row();
117: $result.=&Apache::edit::start_spanning_row();
118: } elsif ($target eq 'modified') {
119: my $constructtag;
120: if ($token->[1] eq 'numericalhint') {
121: $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
122: 'name','answer','unit','format');
123: } elsif ($token->[1] eq 'stringhint') {
124: $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
125: 'name','answer','type');
126: } elsif ($token->[1] eq 'formulahint') {
127: $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
128: 'name','answer','samples');
129: }
130: if ($constructtag) {
131: $result = &Apache::edit::rebuild_tag($token);
132: $result .= &Apache::edit::handle_insert();
133: }
134: } elsif ($target eq 'web') {
135: &Apache::response::reset_params();
136: }
137: return $result;
138: }
139:
140: sub end_numericalhint {
141: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
142: my $result;
143: if ($target eq 'web') {
144: if (!$Apache::lonxml::default_homework_loaded) {
145: &Apache::lonxml::default_homework_load($safeeval);
146: }
147: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
148: my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
149: &Apache::response::setup_params('numericalhint');
150: my $partid=$Apache::inputtags::part;
151: my $id=$Apache::inputtags::response['-1'];
152: #id submissions occured under
153: my $submitid=$Apache::inputtags::response['-2'];
154: my $response = $Apache::lonhomework::history{
155: "resource.$partid.$submitid.submission"};
156: &Apache::lonxml::debug("hintgroup is using $response<br />\n");
157: #build safe space expression
158: my $expression="&caparesponse_check_list('".$response."','".
159: $$parstack[$#$parstack];
160: #need to get all possible parms
161: foreach my $key (keys(%Apache::inputtags::params)) {
162: $expression.= ';my $'. #'
163: $key.'="'.$Apache::inputtags::params{$key}.'"';
164: }
165: $expression.="');";
166: $result = &Apache::run::run($expression,$safeeval);
167: &Apache::lonxml::debug("$expression:result:$result:$Apache::lonxml::curdepth");
168: my ($awards) = split /:/ , $result;
169: my ($ad) = &Apache::inputtags::finalizeawards(split /,/ , $awards);
170: if ($ad eq 'EXACT_ANS' || $ad eq 'APPROX_ANS') { push (@Apache::hint::which,$name); }
171: $result='';
172: } elsif ($target eq 'meta') {
173: $result=&Apache::response::meta_package_write($token->[1]);
174: } elsif ($target eq 'edit') {
175: $result.='</td></tr>'.&Apache::edit::end_table;
176: }
177: &Apache::response::end_hintresponse();
178: return $result;
179: }
180:
181: sub start_stringhint {
182: return &start_numericalhint(@_);
183: }
184:
185: sub end_stringhint {
186: return &end_numericalhint(@_);
187: }
188:
189: sub start_formulahint {
190: return &start_numericalhint(@_);
191: }
192:
193: sub end_formulahint {
194: return end_numericalhint(@_);
195: }
196:
197: # a part shows if it is on, if no specific parts are on, then default shows
198: sub start_hintpart {
199: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
200:
201: my $show ='0';
202: my $result = '';
203: if ($target eq 'web') {
204: my $on= &Apache::lonxml::get_param('on',$parstack,$safeeval);
205: &Apache::lonxml::debug("hintpart sees $on and ,$#Apache::hint::which");
206: if ( $on eq 'default' && $#Apache::hint::which == '-1') {
207: $show=1;
208: } else {
209: my $which;
210: foreach $which (@Apache::hint::which) { if ($which eq $on) { $show = 1; last } }
211: }
212: if (!$show) {
213: &Apache::lonxml::get_all_text("/hintpart",$parser);
214: }
215: } elsif ($target eq 'grade') {
216: &Apache::lonxml::get_all_text("/hintpart",$parser);
217: } elsif ($target eq 'edit') {
218: $result.= &Apache::edit::tag_start($target,$token);
219: $result.= &Apache::edit::text_arg('On:','on',$token);
220: $result.= &Apache::edit::end_row();
221: $result.= &Apache::edit::start_spanning_row();
222: } elsif ($target eq 'modified') {
223: my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
224: 'on');
225: if ($constructtag) {
226: $result = &Apache::edit::rebuild_tag($token);
227: $result.=&Apache::edit::handle_insert();
228: }
229: }
230: return $result;
231: }
232:
233: sub end_hintpart {
234: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
235: my $result;
236: if ($target eq 'edit') { $result.=&Apache::edit::end_table; }
237: return $result;
238: }
239:
240: sub start_optionhint {
241: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
242: my $result;
243: &Apache::response::start_hintresponse($parstack,$safeeval);
244: if ($target eq 'edit') {
245: $result.=&Apache::edit::tag_start($target,$token);
246: $result.=&Apache::edit::text_arg('Name:','name',$token);
247: $result.=&Apache::edit::text_arg('Answer:','answer',$token,40);
248: $result.=&Apache::edit::text_arg('Concept:','concept',$token,50);
249: } elsif ($target eq 'modified') {
250: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
251: $safeeval,'name',
252: 'answer','concept');
253: if ($constructtag) {
254: $result = &Apache::edit::rebuild_tag($token);
255: $result .= &Apache::edit::handle_insert();
256: }
257: } elsif ($target eq 'meta') {
258: $result=&Apache::response::meta_package_write('numericalhint');
259: }
260: return $result;
261: }
262:
263: sub end_optionhint {
264: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
265: my $result;
266: if ($target eq 'web') {
267: my ($foilmatch,$conceptmatch)=(-1,-1);
268: my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
269: my $partid=$Apache::inputtags::part;
270: #id submissions occured under
271: my $submitid=$Apache::inputtags::response['-2'];
272: my $part_id="$partid.$submitid";
273: my %answer;
274: my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
275: if ($answer) {
276: eval('%answer ='.$answer);
277: &Apache::lonhomework::showhash(%answer);
278: my $response = $Apache::lonhomework::history{
279: "resource.$part_id.submission"};
280: my %response=&Apache::lonnet::str2hash($response);
281: &Apache::lonhomework::showhash(%response);
282: foreach my $foil (keys(%answer)) {
283: $foilmatch=1;
284: if ($answer{$foil} ne $response{$foil}) {$foilmatch=0;last;}
285: }
286: }
287: my %concept;
288: my $constr=&Apache::lonxml::get_param('concept',$parstack,$safeeval);
289: if ( $constr ) { eval('%concept ='.$constr); }
290: my $response = $Apache::lonhomework::history{
291: "resource.$part_id.submissiongrading"};
292: my %response=&Apache::lonnet::str2hash($response);
293: foreach my $concept (keys(%concept)) {
294: my $compare;
295: if ($concept{$concept} eq 'correct') {$compare=1}else{$compare=0}
296: $conceptmatch=1;
297: if (ref($Apache::hint::option{"$part_id.concepts"})) {
298: foreach my $foil (@{ $Apache::hint::option{"$part_id.concept.$concept"} }) {
299: &Apache::lonxml::debug("compare -$foil- -$response{$foil}-$compare-");
300: if ( exists($response{$foil}) &&
301: $response{$foil} ne $compare) {$conceptmatch=0;last;}
302: }
303: } else {
304: $conceptmatch=0;
305: }
306: if ($conceptmatch eq '0') { last; }
307: }
308: if ( ($conceptmatch eq '-1' || $conceptmatch eq '1') &&
309: ($foilmatch eq '-1' || $foilmatch eq '1') ) {
310: push(@Apache::hint::which,$name);
311: }
312: } elsif ($target eq 'edit') { $result.=&Apache::edit::end_table; }
313: if ($target eq 'edit') { $result.=&Apache::edit::end_table; }
314: &Apache::response::end_hintresponse();
315: return $result;
316: }
317:
318: sub start_radiobuttonhint {
319: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
320: my $result;
321: &Apache::response::start_hintresponse($parstack,$safeeval);
322: if ($target eq 'edit') {
323: $result.=&Apache::edit::tag_start($target,$token);
324: $result.=&Apache::edit::text_arg('Name:','name',$token);
325: $result.=&Apache::edit::text_arg('Answer:','answer',$token);
326: } elsif ($target eq 'modified') {
327: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
328: $safeeval,'name',
329: 'answer');
330: if ($constructtag) {
331: $result = &Apache::edit::rebuild_tag($token);
332: $result .= &Apache::edit::handle_insert();
333: }
334: } elsif ($target eq 'meta') {
335: $result=&Apache::response::meta_package_write('numericalhint');
336: }
337: return $result;
338: }
339:
340: sub end_radiobuttonhint {
341: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
342: my $result;
343: if ($target eq 'web') {
344: my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
345: my @answer;
346: my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
347: eval('@answer ='.$answer);
348: my $partid=$Apache::inputtags::part;
349: #id submissions occured under
350: my $submitid=$Apache::inputtags::response['-2'];
351: my $part_id="$partid.$submitid";
352: my $response = $Apache::lonhomework::history{
353: "resource.$part_id.submission"};
354: ($response)=&Apache::lonnet::str2hash($response);
355: if ($answer[0] eq 'foil' && $response eq $answer[1]) {
356: push (@Apache::hint::which,$name);
357: } elsif ($answer[0] eq 'concept') {
358: if (ref($Apache::hint::radiobutton{"$part_id.concept.".$answer[1]})) {
359: my @names=@{ $Apache::hint::radiobutton{"$part_id.concept.".$answer[1]} };
360: if (grep(/^\Q$response\E$/,@names)) {
361: push(@Apache::hint::which,$name);
362: }
363: }
364: }
365: } elsif ($target eq 'edit') { $result.=&Apache::edit::end_table; }
366: &Apache::response::end_hintresponse();
367: return $result;
368: }
369: 1;
370: __END__
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