1: # file name (temp): default_homework
2: # used by lonxml::xmlparse() as input variable $safeinit to Apache::run::run()
3: #
4: #
5: $RANDOMINIT=0;
6:
7: sub caparesponse_check {
8: my $answer=''; #done
9: my $type=''; #done
10: my $tol_type=''; # gets it's value from whether tol has a % or not done
11: my $tol=''; #done
12: my $sig='';
13: my $sig_lbound='';
14: my $sig_ubound='';
15: my $ans_fmt='';
16: my $units='';
17: my $calc='';
18: my ($response,$expr)=@_;
19:
20: ($answer,$type,$tol,$sig,$ans_fmt,
21: $units,$calc) = eval $expr.';return $answer,$type,$tol,$sig,$ans_fmt,$units,$calc';
22: #type's definitons come from capaParser.h
23: if ($type eq '' ) {
24: if ( $answer eq ($answer *1.0)) { $type = 2;
25: } else { $type = 3; }
26: } else {
27: if ($type eq 'cs') { $type = 4;
28: } elsif ($type eq 'ci') { $type = 3;
29: } elsif ($type eq 'mc') { $type = 5;
30: } elsif ($type eq 'fml') { $type = 8;
31: } elsif ($type eq 'subj') { $type = 7;
32: } else { return "ERROR: Unknown type of answer: $type" }
33: }
34:
35: if ($tol eq '') {
36: $tol=0.0;
37: $tol_type=1; #TOL_ABSOLUTE
38: } else {
39: if ($tol =~ /%$/) {
40: chop $tol;
41: $tol_type=2; #TOL_PERCENTAGE
42: } else {
43: $tol_type=1; #TOL_ABSOLUTE
44: }
45: }
46:
47: if ($sig eq '') {
48: $sig_lbound = 0; #SIG_LB_DEFAULT
49: $sig_ubound =15; #SIG_UB_DEFAULT
50: } else {
51: ($sig_lbound,$sig_ubound) = split /,/,$sig;
52: }
53: my $result = &caparesponse_capa_check_answer($response,$answer,$type,
54: $tol_type,$tol,
55: $sig_lbound,$sig_ubound,
56: $ans_fmt,$units,$calc);
57:
58: if ($result == '1') { $result='EXACT_ANS'; }
59: elsif ($result == '2') { $result='APPROX_ANS'; }
60: elsif ($result == '3') { $result='SIG_FAIL'; }
61: elsif ($result == '4') { $result='UNIT_FAIL'; }
62: elsif ($result == '5') { $result='NO_UNIT'; }
63: elsif ($result == '6') { $result='UNIT_OK'; }
64: elsif ($result == '7') { $result='INCORRECT'; }
65: elsif ($result == '8') { $result='UNIT_NOTNEEDED'; }
66: elsif ($result == '9') { $result='ANS_CNT_NOT_MATCH'; }
67: elsif ($result =='10') { $result='SUB_RECORDED'; }
68: elsif ($result =='11') { $result='BAD_FORMULA'; }
69: elsif ($result =='12') { $result='WANTED_NUMERIC'; }
70: else {$result = "ERROR: Unknown Result: $result";}
71:
72: return "$result:$error:$answer:$type|$tol|$tol_type|$sig:$sig_lbound:$sig_ubound|$units";
73: }
74:
75: sub tex {
76: if ( $external::target eq "tex" ) {
77: return @_[0];
78: } else {
79: return @_[1];
80: }
81: }
82:
83: sub web {
84: if ( $external::target eq "tex" ) {
85: return @_[1];
86: } else {
87: if ( $external::target eq "web") {
88: return @_[0];
89: } else {
90: return @_[2];
91: }
92: }
93: }
94:
95: sub problem {
96: return '1';
97: }
98:
99: sub hinton {
100: return 0;
101: }
102:
103: sub random {
104: my ($start,$end,$step)=@_;
105: if ( ! $RANDOMINIT ) { srand($external::randomseed); $RANDOMINIT=1; }
106: my $num=1+int(($end-$start)/$step);
107: my $result=$start + int(rand() * $num)*$step;
108: return $result;
109: }
110:
111: sub tan { sin($_[0]) / cos($_[0]) }
112: sub acos { atan2(sqrt(1 - $_[0] * $_[0]), $_[0] ); }
113: sub asin { atan2($_[0], sqrt(1- $_[0] * $_[0]) ); }
114:
115: sub html {
116: if ( $external::target eq "web" ) {
117: return @_[0];
118: }
119: }
120:
121:
122: sub pow {return $_[0] ** $_[1]; }
123: sub ceil {return (($_[0]-int($_[0]))== 0.0) ? $_[0] : (int($_[0])+ 1); }
124: sub floor {return int($_[0]); }
125:
126: sub format {
127: my ($value,$fmt)=@_;
128: return sprintf('%.'.$fmt,$value);
129: }
130:
131: sub map {
132: my $num = $#_/2;
133: my $i;
134: my @used;
135: my @permutation;
136: for ($i=0; $i < $num;) {
137: $rand = &random(1,$num,1);
138: if ( $used[$rand] == '0' ) {
139: $i++;
140: $used[$rand]='1';
141: $permutation[$i]=$rand;
142: }
143: }
144: for ( $i=1 ; $i<$num+1 ; $i++ ) {
145: ${$_[$permutation[$i]]}=$_[$i+$num]
146: }
147: }
148:
149: sub choose {
150: my $num = $_[0];
151: return $_[$num];
152: }
153: #$external::randomseed=time;
154: #$a=2;
155: #$b=2;
156: #$c=2;
157: #&map(1,\$a,\$b,\$c,3,4,5);
158: #print $a."\n".$b."\n";
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>