1: # The LearningOnline Network with CAPA
2: # implements the tags that control the hints
3: #
4: # $Id: hint.pm,v 1.44 2003/06/20 04:18:49 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 < $hinttries ) {
54: &Apache::lonxml::get_all_text("/hintgroup",$parser);
55: }
56: &Apache::lonxml::startredirection;
57: } elsif ($target eq 'tex') {
58: $result .= '\keephidden{';
59: }
60: @Apache::hint::which=();
61: return $result;
62: }
63:
64: sub end_hintgroup {
65: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
66: my $result;
67:
68: if ($target eq 'web') {
69: my $id=$Apache::inputtags::part;
70: my $numtries=$Apache::lonhomework::history{"resource.$id.tries"};
71: if ( $numtries eq '') { $numtries = 0; }
72: my $hinttries=&Apache::lonnet::EXT("resource.$id.hinttries");
73: if ( $hinttries eq '') { $hinttries = 1; }
74: &Apache::lonxml::debug("found :$id:$numtries:$hinttries:");
75: my $hinttext=&Apache::lonxml::endredirection;
76: if ($Apache::lonhomework::type ne 'exam' &&
77: $numtries >= $hinttries && $hinttext =~/\S/) {
78: $result='<table bgcolor="#dddddd"><tr><td>'.
79: $hinttext.'</td></tr></table>';
80: }
81: } elsif ($target eq 'edit') {
82: $result.=&Apache::edit::end_table();
83: } elsif ($target eq 'tex') {
84: $result .= '}';
85: }
86: @Apache::hint::which=();
87: return $result;
88: }
89:
90: sub start_numericalhint {
91: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
92: #do everything in end, so intervening <responseparams> work
93: &Apache::response::start_hintresponse($parstack,$safeeval);
94: my $result;
95: if ($target eq 'edit') {
96: $result.=&Apache::edit::tag_start($target,$token);
97: $result.=&Apache::edit::text_arg('Name:','name',$token);
98: $result.=&Apache::edit::text_arg('Answer:','answer',$token);
99: if ($token->[1] eq 'numericalhint') {
100: $result.=&Apache::edit::text_arg('Unit:','unit',$token,5).
101: &Apache::loncommon::help_open_topic('Physical_Units');
102: $result.=&Apache::edit::text_arg('Format:','format',$token,4).
103: &Apache::loncommon::help_open_topic('Numerical_Response_Format');
104: } elsif ($token->[1] eq 'stringhint') {
105: $result.=&Apache::edit::select_arg('Type:','type',
106: [['cs','Case Sensitive'],['ci','Case Insensitive'],
107: ['mc','Case Insensitive, Any Order']],$token);
108: } elsif ($token->[1] eq 'formulahint') {
109: $result.=&Apache::edit::text_arg('Sample Points:','samples',$token,40);
110: }
111: $result.=&Apache::edit::end_row();
112: $result.=&Apache::edit::start_spanning_row();
113: } elsif ($target eq 'modified') {
114: my $constructtag;
115: if ($token->[1] eq 'numericalhint') {
116: $constructtag=&Apache::edit::get_new_args($token,$parstack,
117: $safeeval,'name',
118: 'answer','unit','format');
119: } elsif ($token->[1] eq 'stringhint') {
120: $constructtag=&Apache::edit::get_new_args($token,$parstack,
121: $safeeval,'name','answer',
122: 'type');
123: } elsif ($token->[1] eq 'formulahint') {
124: $constructtag=&Apache::edit::get_new_args($token,$parstack,
125: $safeeval,'name','answer',
126: 'samples');
127: }
128: if ($constructtag) {
129: $result = &Apache::edit::rebuild_tag($token);
130: $result .= &Apache::edit::handle_insert();
131: }
132: } elsif ($target eq 'web') {
133: &Apache::response::reset_params();
134: }
135: return $result;
136: }
137:
138: sub end_numericalhint {
139: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
140: my $result;
141: if ($target eq 'web') {
142: if (!$Apache::lonxml::default_homework_loaded) {
143: &Apache::lonxml::default_homework_load($safeeval);
144: }
145: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
146: my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
147: &Apache::response::setup_params('numericalhint');
148: my $partid=$Apache::inputtags::part;
149: my $id=$Apache::inputtags::response['-1'];
150: #id submissions occured under
151: my $submitid=$Apache::inputtags::response['-2'];
152: my $response = $Apache::lonhomework::history{
153: "resource.$partid.$submitid.submission"};
154: &Apache::lonxml::debug("hintgroup is using $response<br />\n");
155: #build safe space expression
156: my $expression="&caparesponse_check_list('".$response."','".
157: $$parstack[$#$parstack];
158: #need to get all possible parms
159: foreach my $key (keys(%Apache::inputtags::params)) {
160: $expression.= ';my $'. #'
161: $key.'="'.$Apache::inputtags::params{$key}.'"';
162: }
163: if ($$tagstack[-1] eq 'formulahint') {
164: $expression.=';my $type="fml";';
165: } elsif ($$tagstack[-1] eq 'numericalhint') {
166: $expression.=';my $type="float";';
167: }
168: $expression.="');";
169: $result = &Apache::run::run($expression,$safeeval);
170: &Apache::lonxml::debug("$expression:result:$result:$Apache::lonxml::curdepth");
171: my ($awards) = split /:/ , $result;
172: my ($ad) = &Apache::inputtags::finalizeawards(split /,/ , $awards);
173: if ($ad eq 'EXACT_ANS' || $ad eq 'APPROX_ANS') { push (@Apache::hint::which,$name); }
174: $result='';
175: } elsif ($target eq 'meta') {
176: $result=&Apache::response::meta_package_write($token->[1]);
177: } elsif ($target eq 'edit') {
178: $result.='</td></tr>'.&Apache::edit::end_table;
179: }
180: &Apache::response::end_hintresponse();
181: return $result;
182: }
183:
184: sub start_stringhint {
185: return &start_numericalhint(@_);
186: }
187:
188: sub end_stringhint {
189: return &end_numericalhint(@_);
190: }
191:
192: sub start_formulahint {
193: return &start_numericalhint(@_);
194: }
195:
196: sub end_formulahint {
197: return end_numericalhint(@_);
198: }
199:
200: # a part shows if it is on, if no specific parts are on, then default shows
201: sub start_hintpart {
202: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
203:
204: my $show ='0';
205: my $result = '';
206: if ($target eq 'web') {
207: my $on= &Apache::lonxml::get_param('on',$parstack,$safeeval);
208: &Apache::lonxml::debug("hintpart sees $on and ,$#Apache::hint::which");
209: if ( $on eq 'default' && $#Apache::hint::which == '-1') {
210: $show=1;
211: } else {
212: my $which;
213: foreach $which (@Apache::hint::which) { if ($which eq $on) { $show = 1; last } }
214: }
215: if (!$show) {
216: &Apache::lonxml::get_all_text("/hintpart",$parser);
217: }
218: } elsif ($target eq 'grade') {
219: &Apache::lonxml::get_all_text("/hintpart",$parser);
220: } elsif ($target eq 'edit') {
221: $result.= &Apache::edit::tag_start($target,$token);
222: $result.= &Apache::edit::text_arg('On:','on',$token);
223: $result.= &Apache::edit::end_row();
224: $result.= &Apache::edit::start_spanning_row();
225: } elsif ($target eq 'modified') {
226: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
227: $safeeval,'on');
228: if ($constructtag) {
229: $result = &Apache::edit::rebuild_tag($token);
230: $result.=&Apache::edit::handle_insert();
231: }
232: }
233: return $result;
234: }
235:
236: sub end_hintpart {
237: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
238: my $result;
239: if ($target eq 'edit') { $result.=&Apache::edit::end_table; }
240: return $result;
241: }
242:
243: sub start_optionhint {
244: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
245: my $result;
246: &Apache::response::start_hintresponse($parstack,$safeeval);
247: if ($target eq 'edit') {
248: $result.=&Apache::edit::tag_start($target,$token);
249: $result.=&Apache::edit::text_arg('Name:','name',$token);
250: $result.=&Apache::edit::text_arg('Answer:','answer',$token,40);
251: $result.=&Apache::edit::text_arg('Concept:','concept',$token,50);
252: } elsif ($target eq 'modified') {
253: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
254: $safeeval,'name',
255: 'answer','concept');
256: if ($constructtag) {
257: $result = &Apache::edit::rebuild_tag($token);
258: $result .= &Apache::edit::handle_insert();
259: }
260: } elsif ($target eq 'meta') {
261: $result=&Apache::response::meta_package_write('numericalhint');
262: }
263: return $result;
264: }
265:
266: sub end_optionhint {
267: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
268: my $result;
269: if ($target eq 'web') {
270: my ($foilmatch,$conceptmatch)=(-1,-1);
271: my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
272: my $partid=$Apache::inputtags::part;
273: #id submissions occured under
274: my $submitid=$Apache::inputtags::response['-2'];
275: my $part_id="$partid.$submitid";
276: my %answer;
277: my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
278: if ($answer) {
279: eval('%answer ='.$answer);
280: &Apache::lonhomework::showhash(%answer);
281: my $response = $Apache::lonhomework::history{
282: "resource.$part_id.submission"};
283: my %response=&Apache::lonnet::str2hash($response);
284: &Apache::lonhomework::showhash(%response);
285: foreach my $foil (keys(%answer)) {
286: $foilmatch=1;
287: if ($answer{$foil} ne $response{$foil}) {$foilmatch=0;last;}
288: }
289: }
290: my %concept;
291: my $constr=&Apache::lonxml::get_param('concept',$parstack,$safeeval);
292: if ( $constr ) { eval('%concept ='.$constr); }
293: my $response = $Apache::lonhomework::history{
294: "resource.$part_id.submissiongrading"};
295: my %response=&Apache::lonnet::str2hash($response);
296: foreach my $concept (keys(%concept)) {
297: my $compare;
298: if ($concept{$concept} eq 'correct') {$compare=1}else{$compare=0}
299: $conceptmatch=1;
300: if (ref($Apache::hint::option{"$part_id.concepts"})) {
301: foreach my $foil (@{ $Apache::hint::option{"$part_id.concept.$concept"} }) {
302: &Apache::lonxml::debug("compare -$foil- -$response{$foil}-$compare-");
303: if ( exists($response{$foil}) &&
304: $response{$foil} ne $compare) {$conceptmatch=0;last;}
305: }
306: } else {
307: $conceptmatch=0;
308: }
309: if ($conceptmatch eq '0') { last; }
310: }
311: if ( ($conceptmatch eq '-1' || $conceptmatch eq '1') &&
312: ($foilmatch eq '-1' || $foilmatch eq '1') ) {
313: push(@Apache::hint::which,$name);
314: }
315: } elsif ($target eq 'edit') { $result.=&Apache::edit::end_table; }
316: if ($target eq 'edit') { $result.=&Apache::edit::end_table; }
317: &Apache::response::end_hintresponse();
318: return $result;
319: }
320:
321: sub start_radiobuttonhint {
322: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
323: my $result;
324: &Apache::response::start_hintresponse($parstack,$safeeval);
325: if ($target eq 'edit') {
326: $result.=&Apache::edit::tag_start($target,$token);
327: $result.=&Apache::edit::text_arg('Name:','name',$token);
328: $result.=&Apache::edit::text_arg('Answer:','answer',$token);
329: } elsif ($target eq 'modified') {
330: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
331: $safeeval,'name',
332: 'answer');
333: if ($constructtag) {
334: $result = &Apache::edit::rebuild_tag($token);
335: $result .= &Apache::edit::handle_insert();
336: }
337: } elsif ($target eq 'meta') {
338: $result=&Apache::response::meta_package_write('numericalhint');
339: }
340: return $result;
341: }
342:
343: sub end_radiobuttonhint {
344: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
345: my $result;
346: if ($target eq 'web') {
347: my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
348: my @answer;
349: my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
350: eval('@answer ='.$answer);
351: my $partid=$Apache::inputtags::part;
352: #id submissions occured under
353: my $submitid=$Apache::inputtags::response['-2'];
354: my $part_id="$partid.$submitid";
355: my $response = $Apache::lonhomework::history{
356: "resource.$part_id.submission"};
357: ($response)=&Apache::lonnet::str2hash($response);
358: &Apache::lonxml::debug("response is $response");
359:
360: if ($answer[0] eq 'foil') {
361: shift(@answer);
362: foreach my $answer (@answer) {
363: if ($response eq $answer) {
364: push (@Apache::hint::which,$name);
365: last;
366: }
367: }
368: } elsif ($answer[0] eq 'concept') {
369: shift(@answer);
370: foreach my $answer (@answer) {
371: if (ref($Apache::hint::radiobutton{"$part_id.concept.".$answer})) {
372: my @names=@{ $Apache::hint::radiobutton{"$part_id.concept.".$answer} };
373: if (grep(/^\Q$response\E$/,@names)) {
374: push(@Apache::hint::which,$name);
375: last;
376: }
377: }
378: }
379: }
380: } elsif ($target eq 'edit') { $result.=&Apache::edit::end_table; }
381: &Apache::response::end_hintresponse();
382: return $result;
383: }
384: 1;
385: __END__
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