version 1.1, 2000/11/15 10:37:27
|
version 1.4, 2000/12/04 22:09:39
|
Line 1
|
Line 1
|
# The LearningOnline Network with CAPA |
# The LearningOnline Network with CAPA |
# Spreadsheet/Grades Display Handler |
# Spreadsheet/Grades Display Handler |
# |
# |
# 11/11,11/15 Gerd Kortemeyer |
# 11/11,11/15,11/27,12/04 Gerd Kortemeyer |
|
|
package Apache::lonspreadsheet; |
package Apache::lonspreadsheet; |
|
|
use strict; |
use strict; |
use Safe; |
use Safe; |
|
use Safe::Hole; |
use Opcode; |
use Opcode; |
use vars qw(%v %t %f); |
|
use Apache::lonnet; |
use Apache::lonnet; |
use Apache::Constants qw(:common); |
use Apache::Constants qw(:common); |
|
use HTML::TokeParser; |
|
|
sub deffunc { |
|
my $safeeval=shift; |
|
|
sub initsheet { |
|
my $safeeval = new Safe; |
|
my $safehole = new Safe::Hole; |
|
$safeeval->permit("entereval"); |
|
$safeeval->permit(":base_math"); |
|
$safeeval->permit("sort"); |
|
$safeeval->deny(":base_io"); |
|
$safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT'); |
my $code=<<'ENDDEFS'; |
my $code=<<'ENDDEFS'; |
# ---------------------------------------------------- Inside of the safe space |
# ---------------------------------------------------- Inside of the safe space |
|
|
|
# |
|
# f: formulas |
|
# t: intermediate format (variable references expanded) |
|
# v: output values |
|
# |
|
|
|
%v=(); |
|
%t=(); |
|
%f=(); |
|
|
sub mask { |
sub mask { |
my ($lower,$upper)=@_; |
my ($lower,$upper)=@_; |
|
|
Line 81 sub mask {
|
Line 100 sub mask {
|
} |
} |
} |
} |
} |
} |
return '^'.$alpha.$num.'$'; |
return '^'.$alpha.$num."\$"; |
} |
} |
|
|
|
|
sub NUM { |
sub NUM { |
my $mask=mask(@_); |
my $mask=mask(@_); |
my $num=0; |
my $num=0; |
Line 205 sub SUMMIN {
|
Line 223 sub SUMMIN {
|
return $sum; |
return $sum; |
} |
} |
|
|
|
|
# ------------------------------------------- End of "Inside of the safe space" |
|
ENDDEFS |
|
$safeeval->reval($code); |
|
} |
|
|
|
sub sett { |
sub sett { |
%t=(); |
%t=(); |
map { |
map { |
Line 222 sub sett {
|
Line 234 sub sett {
|
} keys %f; |
} keys %f; |
} |
} |
|
|
sub calcv { |
sub calc { |
my $safeeval=shift; |
|
%v=(); |
%v=(); |
|
&sett(); |
my $notfinished=1; |
my $notfinished=1; |
my $depth=0; |
my $depth=0; |
while ($notfinished) { |
while ($notfinished) { |
$notfinished=0; |
$notfinished=0; |
map { |
map { |
my $old=$v{$_}; |
my $old=$v{$_}; |
$v{$_}=$safeeval->reval($t{$_}); |
$v{$_}=eval($t{$_}); |
if ($@) { |
if ($@) { |
%v=(); |
%v=(); |
return $@; |
return $@; |
Line 247 sub calcv {
|
Line 259 sub calcv {
|
return ''; |
return ''; |
} |
} |
|
|
|
# ------------------------------------------- End of "Inside of the safe space" |
|
ENDDEFS |
|
$safeeval->reval($code); |
|
return $safeeval; |
|
} |
|
|
|
# ------------------------------------------------ Add or change formula values |
|
|
|
sub setformulas { |
|
my ($safeeval,@f)=@_; |
|
$safeeval->reval('%f=(%f,'."('".join("','",@f)."'));"); |
|
} |
|
|
|
# ------------------------------------------------------- Calculate spreadsheet |
|
|
|
sub calcsheet { |
|
my $safeeval=shift; |
|
$safeeval->reval('&calc();'); |
|
} |
|
|
|
# ------------------------------------------------------------------ Get values |
|
|
|
sub getvalues { |
|
my $safeeval=shift; |
|
return $safeeval->reval('%v'); |
|
} |
|
|
|
# ---------------------------------------------------------------- Get formulas |
|
|
|
sub getformulas { |
|
my $safeeval=shift; |
|
return $safeeval->reval('%f'); |
|
} |
|
|
|
# ------------------------------------------------------------ Read spreadsheet |
|
|
|
sub readf { |
|
my $fn=shift; |
|
my %f=(); |
|
my $content; |
|
{ |
|
my $fh=Apache::File->new($fn); |
|
$content=join('',<$fh>); |
|
} |
|
{ |
|
my $parser=HTML::TokeParser->new(\$content); |
|
my $token; |
|
while ($token=$parser->get_token) { |
|
if ($token->[0] eq 'S') { |
|
if ($token->[1] eq 'field') { |
|
$f{$token->[2]->{'col'}.$token->[2]->{'row'}}= |
|
$parser->get_text('/field'); |
|
} |
|
} |
|
} |
|
} |
|
} |
|
|
|
# --------------------------------------------------------------- Read metadata |
|
|
|
sub readmeta { |
|
my $fn=shift; |
|
unless ($fn=~/\.meta$/) { $fn.='meta'; } |
|
my $content; |
|
my %returnhash=(); |
|
{ |
|
my $fh=Apache::File->new($fn); |
|
$content=join('',<$fh>); |
|
} |
|
my $parser=HTML::TokeParser->new(\$content); |
|
my $token; |
|
while ($token=$parser->get_token) { |
|
if ($token->[0] eq 'S') { |
|
my $entry=$token->[1]; |
|
if (($entry eq 'stores') || ($entry eq 'parameter')) { |
|
my $unikey=$entry; |
|
$unikey.='_'.$token->[2]->{'part'}; |
|
$unikey.='_'.$token->[2]->{'name'}; |
|
$returnhash{$unikey}=$token->[2]->{'display'}; |
|
} |
|
} |
|
} |
|
return %returnhash; |
|
} |
|
|
|
|
|
# ----------------------------------------------------------------------------- |
|
|
sub handler { |
sub handler { |
%v=(); |
|
%t=(); |
my $r=shift; |
%f=(); |
|
my $safeeval = new Safe; |
$r->content_type('text/html'); |
$safeeval->permit("entereval"); |
$r->send_http_header; |
$safeeval->permit(":base_math"); |
|
$safeeval->permit("sort"); |
$r->print('<html><head><title>LON-CAPA Spreadsheet</title></head>'); |
$safeeval->deny(":base_io"); |
$r->print('<body bgcolor="#FFFFFF">'); |
# $safeeval->share_from('Apache::lonnet',['&EXT']); |
|
$safeeval->share('%v','%t','%f'); |
my $sheetone=initsheet(); |
&deffunc($safeeval); |
|
$f{'A3'}=5; |
&setformulas($sheetone,('A1' => '5', 'B2' => '6', 'C4' => 'A1+B2')); |
$f{'A4'}=3; |
$r->print(&calcsheet($sheetone)); |
$f{'A5'}=8; |
my %output=&getformulas($sheetone); |
$f{'E100'}=5; |
|
$f{'C3'}='A3+6'; |
$r->print('FORM:'.$output{'A1'}.' '.$output{'B2'}.' '.$output{'C4'}); |
$f{'B4'}='8+int(C3/3)'; |
|
$f{'C7'}='A3+B4'; |
my %output=&getvalues($sheetone); |
$f{'G8'}='MEAN("E*")'; |
|
$f{'G5'}='A3+SUMMIN(2,"A*")'; |
$r->print('<br>OUT:'.$output{'A1'}.' '.$output{'B2'}.' '.$output{'C4'}); |
$f{'G6'}='A3+SUM("A*")'; |
|
$f{'G7'}='STDDEV("A*")'; |
$r->print('</body></html>'); |
$f{'G9'}='NUM("G*")'; |
return OK; |
$f{'H10'}='MEAN("E*")'; |
|
$f{'G10'}='BIN(3,5,"A*")'; |
|
&sett(); |
|
print &calcv($safeeval)."\n"; |
|
print $v{'C7'}."\n"; |
|
print $t{'G5'}.' - '.$v{'G5'}."\n"; |
|
print $t{'G6'}.' - '.$v{'G6'}."\n"; |
|
print $t{'G7'}.' - '.$v{'G7'}."\n"; |
|
print $t{'G8'}.' - '.$v{'G8'}."\n"; |
|
print $t{'G9'}.' - '.$v{'G9'}."\n"; |
|
print $t{'G10'}.' - '.$v{'G10'}."\n"; |
|
} |
} |
|
|
1; |
1; |