1: # The LearningOnline Network with CAPA
2: # implements the tags that control the hints
3: #
4: # $Id: hint.pm,v 1.32 2002/11/13 23:37:56 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: if (!$Apache::lonxml::default_homework_loaded) {
135: &Apache::lonxml::default_homework_load($safeeval);
136: }
137: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
138: my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
139: &Apache::response::setup_params('numericalhint');
140: my $partid=$Apache::inputtags::part;
141: my $id=$Apache::inputtags::response['-1'];
142: #id submissions occured under
143: my $submitid=$Apache::inputtags::response['-2'];
144: my $response = $Apache::lonhomework::history{
145: "resource.$partid.$submitid.submission"};
146: &Apache::lonxml::debug("hintgroup is using $response<br />\n");
147: #build safe space expression
148: my $expression="&caparesponse_check_list('".$response."','".
149: $$parstack[$#$parstack];
150: #need to get all possible parms
151: foreach my $key (keys(%Apache::inputtags::params)) {
152: $expression.= ';my $'. #'
153: $key.'="'.$Apache::inputtags::params{$key}.'"';
154: }
155: $expression.="');";
156: $result = &Apache::run::run($expression,$safeeval);
157: &Apache::lonxml::debug("$expression:result:$result:$Apache::lonxml::curdepth");
158: my ($awards) = split /:/ , $result;
159: my ($ad) = &Apache::inputtags::finalizeawards(split /,/ , $awards);
160: if ($ad eq 'EXACT_ANS' || $ad eq 'APPROX_ANS') { push (@Apache::hint::which,$name); }
161: $result='';
162: } elsif ($target eq 'meta') {
163: $result=&Apache::response::meta_package_write('numericalhint');
164: } elsif ($target eq 'edit') {
165: $result.='</td></tr>'.&Apache::edit::end_table;
166: }
167: &Apache::response::end_hintresponse();
168: return $result;
169: }
170:
171: sub start_stringhint {
172: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
173: my $result;
174: if ($target eq 'meta') {
175: $result=&Apache::response::meta_package_write('stringhint');
176: } else {
177: $result.=&start_numericalhint(@_);
178: }
179: return $result;
180: }
181:
182: sub end_stringhint {
183: return end_numericalhint(@_);
184: }
185:
186: sub start_formulahint {
187: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
188: my $result;
189: if ($target eq 'meta') {
190: $result=&Apache::response::meta_package_write('formulahint');
191: } else {
192: $result.=&start_numericalhint(@_);
193: }
194: return $result;
195: }
196:
197: sub end_formulahint {
198: return end_numericalhint(@_);
199: }
200:
201: # a part shows if it is on, if no specific parts are on, then default shows
202: sub start_hintpart {
203: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
204:
205: my $show ='0';
206: my $result = '';
207: if ($target eq 'web') {
208: my $on= &Apache::lonxml::get_param('on',$parstack,$safeeval);
209: &Apache::lonxml::debug("hintpart sees $on and ,$#Apache::hint::which");
210: if ( $on eq 'default' && $#Apache::hint::which == '-1') {
211: $show=1;
212: } else {
213: my $which;
214: foreach $which (@Apache::hint::which) { if ($which eq $on) { $show = 1; last } }
215: }
216: if (!$show) {
217: &Apache::lonxml::get_all_text("/hintpart",$$parser[$#$parser]);
218: }
219: } elsif ($target eq 'grade') {
220: &Apache::lonxml::get_all_text("/hintpart",$$parser[$#$parser]);
221: } elsif ($target eq 'edit') {
222: $result.= &Apache::edit::tag_start($target,$token);
223: $result.= &Apache::edit::text_arg('On:','on',$token);
224: $result.= &Apache::edit::end_row();
225: $result.= &Apache::edit::start_spanning_row();
226: } elsif ($target eq 'modified') {
227: my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
228: 'on');
229: if ($constructtag) {
230: $result = &Apache::edit::rebuild_tag($token);
231: $result.=&Apache::edit::handle_insert();
232: }
233: }
234: return $result;
235: }
236:
237: sub end_hintpart {
238: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
239: my $result;
240: if ($target eq 'edit') { $result.=&Apache::edit::end_table; }
241: return $result;
242: }
243:
244: sub start_optionhint {
245: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
246: my $result;
247: &Apache::response::start_hintresponse($parstack,$safeeval);
248: if ($target eq 'edit') {
249: $result.=&Apache::edit::tag_start($target,$token);
250: $result.=&Apache::edit::text_arg('Name:','name',$token);
251: $result.=&Apache::edit::text_arg('Answer:','answer',$token,40);
252: $result.=&Apache::edit::text_arg('Concept:','concept',$token,50);
253: } elsif ($target eq 'modified') {
254: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
255: $safeeval,'name',
256: 'answer','concept');
257: if ($constructtag) {
258: $result = &Apache::edit::rebuild_tag($token);
259: $result .= &Apache::edit::handle_insert();
260: }
261: } elsif ($target eq 'meta') {
262: $result=&Apache::response::meta_package_write('numericalhint');
263: }
264: return $result;
265: }
266:
267: sub end_optionhint {
268: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
269: my $result;
270: if ($target eq 'web') {
271: my ($foilmatch,$conceptmatch)=(-1,-1);
272: my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
273: my $partid=$Apache::inputtags::part;
274: #id submissions occured under
275: my $submitid=$Apache::inputtags::response['-2'];
276: my $part_id="$partid.$submitid";
277: my %answer;
278: my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
279: if ($answer) {
280: eval('%answer ='.$answer);
281: &Apache::lonhomework::showhash(%answer);
282: my $response = $Apache::lonhomework::history{
283: "resource.$part_id.submission"};
284: my %response=&Apache::lonnet::str2hash($response);
285: &Apache::lonhomework::showhash(%response);
286: foreach my $foil (keys(%answer)) {
287: $foilmatch=1;
288: if ($answer{$foil} ne $response{$foil}) {$foilmatch=0;last;}
289: }
290: }
291: my %concept;
292: my $constr=&Apache::lonxml::get_param('concept',$parstack,$safeeval);
293: if ( $constr ) { eval('%concept ='.$constr); }
294: my $response = $Apache::lonhomework::history{
295: "resource.$part_id.submissiongrading"};
296: my %response=&Apache::lonnet::str2hash($response);
297: foreach my $concept (keys(%concept)) {
298: my $compare;
299: if ($concept{$concept} eq 'correct') {$compare=1}else{$compare=0}
300: $conceptmatch=1;
301: if (ref($Apache::hint::option{"$part_id.concepts"})) {
302: foreach my $foil (@{ $Apache::hint::option{"$part_id.concept.$concept"} }) {
303: &Apache::lonxml::debug("compare -$foil- -$response{$foil}-$compare-");
304: if ( exists($response{$foil}) &&
305: $response{$foil} ne $compare) {$conceptmatch=0;last;}
306: }
307: } else {
308: $conceptmatch=0;
309: }
310: if ($conceptmatch eq '0') { last; }
311: }
312: if ( ($conceptmatch eq '-1' || $conceptmatch eq '1') &&
313: ($foilmatch eq '-1' || $foilmatch eq '1') ) {
314: push(@Apache::hint::which,$name);
315: }
316: } elsif ($target eq 'edit') { $result.=&Apache::edit::end_table; }
317: if ($target eq 'edit') { $result.=&Apache::edit::end_table; }
318: &Apache::response::end_hintresponse();
319: return $result;
320: }
321:
322: sub start_radiobuttonhint {
323: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
324: my $result;
325: &Apache::response::start_hintresponse($parstack,$safeeval);
326: if ($target eq 'edit') {
327: $result.=&Apache::edit::tag_start($target,$token);
328: $result.=&Apache::edit::text_arg('Name:','name',$token);
329: $result.=&Apache::edit::text_arg('Answer:','answer',$token);
330: } elsif ($target eq 'modified') {
331: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
332: $safeeval,'name',
333: 'answer');
334: if ($constructtag) {
335: $result = &Apache::edit::rebuild_tag($token);
336: $result .= &Apache::edit::handle_insert();
337: }
338: } elsif ($target eq 'meta') {
339: $result=&Apache::response::meta_package_write('numericalhint');
340: }
341: return $result;
342: }
343:
344: sub end_radiobuttonhint {
345: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
346: my $result;
347: if ($target eq 'web') {
348: my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
349: my @answer;
350: my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
351: eval('@answer ='.$answer);
352: my $partid=$Apache::inputtags::part;
353: #id submissions occured under
354: my $submitid=$Apache::inputtags::response['-2'];
355: my $part_id="$partid.$submitid";
356: my $response = $Apache::lonhomework::history{
357: "resource.$part_id.submission"};
358: ($response)=&Apache::lonnet::str2hash($response);
359: if ($answer[0] eq 'foil' && $response eq $answer[1]) {
360: push (@Apache::hint::which,$name);
361: } elsif ($answer[0] eq 'concept') {
362: if (ref($Apache::hint::radiobutton{"$part_id.concept.".$answer[1]})) {
363: my @names=@{ $Apache::hint::radiobutton{"$part_id.concept.".$answer[1]} };
364: if (grep(/^\Q$response\E$/,@names)) {
365: push(@Apache::hint::which,$name);
366: }
367: }
368: }
369: } elsif ($target eq 'edit') { $result.=&Apache::edit::end_table; }
370: &Apache::response::end_hintresponse();
371: return $result;
372: }
373: 1;
374: __END__
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