1: package Apache::hinttags;
2:
3: use strict;
4: use Apache::lonnet;
5: use capa;
6:
7: sub BEGIN {
8: &Apache::lonxml::register('Apache::hinttags',('hintgroup','hintpart','numericalhint'));
9: }
10:
11:
12: @Apache::hint::which=();
13: sub start_hintgroup {
14: my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
15: my $skiptoend='0';
16: my $result;
17:
18: if ($target eq 'web') {
19: my $id=$Apache::inputtags::part;
20: my $numtries=$Apache::lonhomework::history{"resource.$id.tries"};
21: if ( $numtries eq '') { $numtries = 0; }
22: my $hinttries=&Apache::lonnet::EXT("resource.$id.hinttries");
23: if ( $hinttries eq '') { $hinttries = 1; }
24: &Apache::lonxml::debug("found :$id:$numtries:$hinttries:");
25: if ( $numtries < $hinttries ) {
26: $skiptoend='1';
27: } else {
28: if ($target eq 'web') {$result='<table bgcolor="#dddddd"><tr><td>';}
29: }
30: }
31: if ($skiptoend) {
32: &Apache::lonxml::get_all_text("/hintgroup",$$parser[$#$parser]);
33: }
34: @Apache::hint::which=();
35: return $result;
36: }
37:
38: sub end_hintgroup {
39: my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
40: my $result;
41:
42: if ($target eq 'web') {
43: my $id=$Apache::inputtags::part;
44: my $numtries=$Apache::lonhomework::history{"resource.$id.tries"};
45: if ( $numtries eq '') { $numtries = 0; }
46: my $hinttries=&Apache::lonnet::EXT("resource.$id.hinttries");
47: if ( $hinttries eq '') { $hinttries = 1; }
48: &Apache::lonxml::debug("found :$id:$numtries:$hinttries:");
49: if ( $numtries => $hinttries ) {
50: if ($target eq 'web') {$result='</td></tr></table>';}
51: }
52: }
53: @Apache::hint::which='';
54: return $result;
55: }
56:
57: sub start_numericalhint {
58: #do everything in end, so intervening <responseparams> work
59: return '';
60: }
61:
62: sub end_numericalhint {
63: my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
64: my $result;
65: if ($target eq 'web') {
66: my $args ='';
67: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
68: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
69: my $name = &Apache::run::run("{$args;".'return $name}',$safeeval);
70: my $response = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.$Apache::inputtags::response['-1'].submission"};
71: &Apache::lonxml::debug("hintgroup is using $response<br />\n");
72: my $expression="&caparesponse_check_list('".$response."','".
73: $$parstack[$#$parstack].
74: ';my $tol="'.$Apache::inputtags::params{'tol'}.'"'.
75: ';my $sig="'.$Apache::inputtags::params{'sig'}.'"'.
76: "');";
77: $result = &Apache::run::run($expression,$safeeval);
78: &Apache::lonxml::debug("$expression:result:$result:$Apache::lonxml::curdepth");
79: my ($awards) = split /:/ , $result;
80: my ($ad) = &Apache::inputtags::finalizeawards(split /,/ , $awards);
81: if ($ad eq 'EXACT_ANS' || $ad eq 'APPROX_ANS') { push (@Apache::hint::which,$name); }
82: $result='';
83: }
84: return $result;
85: }
86:
87: # a part shows if it is on, if no specific parts are on, then default shows
88: sub start_hintpart {
89: my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
90:
91: my $show ='0';
92:
93: if ($target eq 'web') {
94: my $args ='';
95: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
96: my $on = &Apache::run::run("{$args;".'return $on}',$safeeval);
97: &Apache::lonxml::debug("hintpart sees $on and ,$#Apache::hint::which");
98: if ( $on eq 'default' && $#Apache::hint::which == '-1') {
99: $show=1;
100: } else {
101: my $which;
102: foreach $which (@Apache::hint::which) { if ($which eq $on) { $show = 1; last } }
103: }
104: if (!$show) {
105: &Apache::lonxml::get_all_text("/hintpart",$$parser[$#$parser]);
106: }
107: } elsif ($target eq 'grade') {
108: &Apache::lonxml::get_all_text("/hintpart",$$parser[$#$parser]);
109: }
110: return '';
111: }
112:
113: sub end_hintpart {
114: return '';
115: }
116:
117: 1;
118: __END__
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