1: # The LearningOnline Network with CAPA
2: # implements the tags that control the hints
3: #
4: # $Id: hint.pm,v 1.33 2002/11/25 21:36:42 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[$#$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: $result=&Apache::response::meta_package_write('numericalhint');
166: } elsif ($target eq 'edit') {
167: $result.='</td></tr>'.&Apache::edit::end_table;
168: }
169: &Apache::response::end_hintresponse();
170: return $result;
171: }
172:
173: sub start_stringhint {
174: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
175: my $result;
176: if ($target eq 'meta') {
177: $result=&Apache::response::meta_package_write('stringhint');
178: } else {
179: $result.=&start_numericalhint(@_);
180: }
181: return $result;
182: }
183:
184: sub end_stringhint {
185: return end_numericalhint(@_);
186: }
187:
188: sub start_formulahint {
189: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
190: my $result;
191: if ($target eq 'meta') {
192: $result=&Apache::response::meta_package_write('formulahint');
193: } else {
194: $result.=&start_numericalhint(@_);
195: }
196: return $result;
197: }
198:
199: sub end_formulahint {
200: return end_numericalhint(@_);
201: }
202:
203: # a part shows if it is on, if no specific parts are on, then default shows
204: sub start_hintpart {
205: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
206:
207: my $show ='0';
208: my $result = '';
209: if ($target eq 'web') {
210: my $on= &Apache::lonxml::get_param('on',$parstack,$safeeval);
211: &Apache::lonxml::debug("hintpart sees $on and ,$#Apache::hint::which");
212: if ( $on eq 'default' && $#Apache::hint::which == '-1') {
213: $show=1;
214: } else {
215: my $which;
216: foreach $which (@Apache::hint::which) { if ($which eq $on) { $show = 1; last } }
217: }
218: if (!$show) {
219: &Apache::lonxml::get_all_text("/hintpart",$$parser[$#$parser]);
220: }
221: } elsif ($target eq 'grade') {
222: &Apache::lonxml::get_all_text("/hintpart",$$parser[$#$parser]);
223: } elsif ($target eq 'edit') {
224: $result.= &Apache::edit::tag_start($target,$token);
225: $result.= &Apache::edit::text_arg('On:','on',$token);
226: $result.= &Apache::edit::end_row();
227: $result.= &Apache::edit::start_spanning_row();
228: } elsif ($target eq 'modified') {
229: my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
230: 'on');
231: if ($constructtag) {
232: $result = &Apache::edit::rebuild_tag($token);
233: $result.=&Apache::edit::handle_insert();
234: }
235: }
236: return $result;
237: }
238:
239: sub end_hintpart {
240: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
241: my $result;
242: if ($target eq 'edit') { $result.=&Apache::edit::end_table; }
243: return $result;
244: }
245:
246: sub start_optionhint {
247: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
248: my $result;
249: &Apache::response::start_hintresponse($parstack,$safeeval);
250: if ($target eq 'edit') {
251: $result.=&Apache::edit::tag_start($target,$token);
252: $result.=&Apache::edit::text_arg('Name:','name',$token);
253: $result.=&Apache::edit::text_arg('Answer:','answer',$token,40);
254: $result.=&Apache::edit::text_arg('Concept:','concept',$token,50);
255: } elsif ($target eq 'modified') {
256: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
257: $safeeval,'name',
258: 'answer','concept');
259: if ($constructtag) {
260: $result = &Apache::edit::rebuild_tag($token);
261: $result .= &Apache::edit::handle_insert();
262: }
263: } elsif ($target eq 'meta') {
264: $result=&Apache::response::meta_package_write('numericalhint');
265: }
266: return $result;
267: }
268:
269: sub end_optionhint {
270: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
271: my $result;
272: if ($target eq 'web') {
273: my ($foilmatch,$conceptmatch)=(-1,-1);
274: my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
275: my $partid=$Apache::inputtags::part;
276: #id submissions occured under
277: my $submitid=$Apache::inputtags::response['-2'];
278: my $part_id="$partid.$submitid";
279: my %answer;
280: my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
281: if ($answer) {
282: eval('%answer ='.$answer);
283: &Apache::lonhomework::showhash(%answer);
284: my $response = $Apache::lonhomework::history{
285: "resource.$part_id.submission"};
286: my %response=&Apache::lonnet::str2hash($response);
287: &Apache::lonhomework::showhash(%response);
288: foreach my $foil (keys(%answer)) {
289: $foilmatch=1;
290: if ($answer{$foil} ne $response{$foil}) {$foilmatch=0;last;}
291: }
292: }
293: my %concept;
294: my $constr=&Apache::lonxml::get_param('concept',$parstack,$safeeval);
295: if ( $constr ) { eval('%concept ='.$constr); }
296: my $response = $Apache::lonhomework::history{
297: "resource.$part_id.submissiongrading"};
298: my %response=&Apache::lonnet::str2hash($response);
299: foreach my $concept (keys(%concept)) {
300: my $compare;
301: if ($concept{$concept} eq 'correct') {$compare=1}else{$compare=0}
302: $conceptmatch=1;
303: if (ref($Apache::hint::option{"$part_id.concepts"})) {
304: foreach my $foil (@{ $Apache::hint::option{"$part_id.concept.$concept"} }) {
305: &Apache::lonxml::debug("compare -$foil- -$response{$foil}-$compare-");
306: if ( exists($response{$foil}) &&
307: $response{$foil} ne $compare) {$conceptmatch=0;last;}
308: }
309: } else {
310: $conceptmatch=0;
311: }
312: if ($conceptmatch eq '0') { last; }
313: }
314: if ( ($conceptmatch eq '-1' || $conceptmatch eq '1') &&
315: ($foilmatch eq '-1' || $foilmatch eq '1') ) {
316: push(@Apache::hint::which,$name);
317: }
318: } elsif ($target eq 'edit') { $result.=&Apache::edit::end_table; }
319: if ($target eq 'edit') { $result.=&Apache::edit::end_table; }
320: &Apache::response::end_hintresponse();
321: return $result;
322: }
323:
324: sub start_radiobuttonhint {
325: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
326: my $result;
327: &Apache::response::start_hintresponse($parstack,$safeeval);
328: if ($target eq 'edit') {
329: $result.=&Apache::edit::tag_start($target,$token);
330: $result.=&Apache::edit::text_arg('Name:','name',$token);
331: $result.=&Apache::edit::text_arg('Answer:','answer',$token);
332: } elsif ($target eq 'modified') {
333: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
334: $safeeval,'name',
335: 'answer');
336: if ($constructtag) {
337: $result = &Apache::edit::rebuild_tag($token);
338: $result .= &Apache::edit::handle_insert();
339: }
340: } elsif ($target eq 'meta') {
341: $result=&Apache::response::meta_package_write('numericalhint');
342: }
343: return $result;
344: }
345:
346: sub end_radiobuttonhint {
347: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
348: my $result;
349: if ($target eq 'web') {
350: my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
351: my @answer;
352: my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
353: eval('@answer ='.$answer);
354: my $partid=$Apache::inputtags::part;
355: #id submissions occured under
356: my $submitid=$Apache::inputtags::response['-2'];
357: my $part_id="$partid.$submitid";
358: my $response = $Apache::lonhomework::history{
359: "resource.$part_id.submission"};
360: ($response)=&Apache::lonnet::str2hash($response);
361: if ($answer[0] eq 'foil' && $response eq $answer[1]) {
362: push (@Apache::hint::which,$name);
363: } elsif ($answer[0] eq 'concept') {
364: if (ref($Apache::hint::radiobutton{"$part_id.concept.".$answer[1]})) {
365: my @names=@{ $Apache::hint::radiobutton{"$part_id.concept.".$answer[1]} };
366: if (grep(/^\Q$response\E$/,@names)) {
367: push(@Apache::hint::which,$name);
368: }
369: }
370: }
371: } elsif ($target eq 'edit') { $result.=&Apache::edit::end_table; }
372: &Apache::response::end_hintresponse();
373: return $result;
374: }
375: 1;
376: __END__
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