version 1.1, 2000/11/15 10:37:27
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version 1.5, 2000/12/05 15:09:22
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# The LearningOnline Network with CAPA |
# The LearningOnline Network with CAPA |
# Spreadsheet/Grades Display Handler |
# Spreadsheet/Grades Display Handler |
# |
# |
# 11/11,11/15 Gerd Kortemeyer |
# 11/11,11/15,11/27,12/04,12/05 Gerd Kortemeyer |
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package Apache::lonspreadsheet; |
package Apache::lonspreadsheet; |
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use strict; |
use strict; |
use Safe; |
use Safe; |
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use Safe::Hole; |
use Opcode; |
use Opcode; |
use vars qw(%v %t %f); |
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use Apache::lonnet; |
use Apache::lonnet; |
use Apache::Constants qw(:common); |
use Apache::Constants qw(:common); |
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use HTML::TokeParser; |
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sub deffunc { |
# ============================================================================= |
my $safeeval=shift; |
# ===================================== Implements an instance of a spreadsheet |
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sub initsheet { |
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my $safeeval = new Safe; |
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my $safehole = new Safe::Hole; |
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$safeeval->permit("entereval"); |
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$safeeval->permit(":base_math"); |
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$safeeval->permit("sort"); |
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$safeeval->deny(":base_io"); |
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$safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT'); |
my $code=<<'ENDDEFS'; |
my $code=<<'ENDDEFS'; |
# ---------------------------------------------------- Inside of the safe space |
# ---------------------------------------------------- Inside of the safe space |
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# |
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# f: formulas |
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# t: intermediate format (variable references expanded) |
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# v: output values |
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# |
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%v=(); |
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%t=(); |
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%f=(); |
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$sheettype=''; |
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$filename=''; |
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sub mask { |
sub mask { |
my ($lower,$upper)=@_; |
my ($lower,$upper)=@_; |
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Line 81 sub mask {
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Line 103 sub mask {
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} |
} |
} |
} |
} |
} |
return '^'.$alpha.$num.'$'; |
return '^'.$alpha.$num."\$"; |
} |
} |
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sub NUM { |
sub NUM { |
my $mask=mask(@_); |
my $mask=mask(@_); |
my $num=0; |
my $num=0; |
Line 205 sub SUMMIN {
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Line 226 sub SUMMIN {
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return $sum; |
return $sum; |
} |
} |
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# ------------------------------------------- End of "Inside of the safe space" |
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ENDDEFS |
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$safeeval->reval($code); |
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} |
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sub sett { |
sub sett { |
%t=(); |
%t=(); |
map { |
map { |
Line 222 sub sett {
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Line 237 sub sett {
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} keys %f; |
} keys %f; |
} |
} |
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sub calcv { |
sub calc { |
my $safeeval=shift; |
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%v=(); |
%v=(); |
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&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 $@; |
Line 247 sub calcv {
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Line 262 sub calcv {
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return ''; |
return ''; |
} |
} |
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# ------------------------------------------- End of "Inside of the safe space" |
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ENDDEFS |
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$safeeval->reval($code); |
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return $safeeval; |
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} |
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# ------------------------------------------------ Add or change formula values |
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sub setformulas { |
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my ($safeeval,@f)=@_; |
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$safeeval->reval('%f=(%f,'."('".join("','",@f)."'));"); |
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} |
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# ------------------------------------------------------- Calculate spreadsheet |
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sub calcsheet { |
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my $safeeval=shift; |
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$safeeval->reval('&calc();'); |
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} |
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# ------------------------------------------------------------------ Get values |
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sub getvalues { |
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my $safeeval=shift; |
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return $safeeval->reval('%v'); |
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} |
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# ---------------------------------------------------------------- Get formulas |
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sub getformulas { |
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my $safeeval=shift; |
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return $safeeval->reval('%f'); |
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} |
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# -------------------------------------------------------------------- Set type |
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sub settype { |
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my ($safeeval,$type)=@_; |
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$safeeval->reval('$sheettype='.$type.';'); |
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} |
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# -------------------------------------------------------------------- Get type |
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sub gettype { |
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my $safeeval=shift; |
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return $safeeval->reval('$sheettype'); |
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} |
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# -------------------------------------------------------------------- Set type |
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sub setfilename { |
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my ($safeeval,$fn)=@_; |
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$safeeval->reval('$filename='.$fn.';'); |
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} |
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# -------------------------------------------------------------------- Get type |
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sub getfilename { |
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my $safeeval=shift; |
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return $safeeval->reval('$filename'); |
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} |
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# ========================================================== End of Spreadsheet |
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# ============================================================================= |
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# --------------------------------------- Read spreadsheet formulas from a file |
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sub readsheet { |
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my ($safeeval,$fn)=shift; |
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&setfilename($safeeval,$fn); |
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$fn=~/\.(\w+)/; |
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&settype($safeeval,$1); |
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my %f=(); |
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my $content; |
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{ |
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my $fh=Apache::File->new($fn); |
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$content=join('',<$fh>); |
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} |
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{ |
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my $parser=HTML::TokeParser->new(\$content); |
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my $token; |
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while ($token=$parser->get_token) { |
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if ($token->[0] eq 'S') { |
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if ($token->[1] eq 'field') { |
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$f{$token->[2]->{'col'}.$token->[2]->{'row'}}= |
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$parser->get_text('/field'); |
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} |
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} |
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} |
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} |
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&setformulas($safeeval,%f); |
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} |
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# --------------------------------------------------------------- Read metadata |
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sub readmeta { |
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my $fn=shift; |
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unless ($fn=~/\.meta$/) { $fn.='meta'; } |
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my $content; |
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my %returnhash=(); |
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{ |
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my $fh=Apache::File->new($fn); |
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$content=join('',<$fh>); |
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} |
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my $parser=HTML::TokeParser->new(\$content); |
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my $token; |
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while ($token=$parser->get_token) { |
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if ($token->[0] eq 'S') { |
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my $entry=$token->[1]; |
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if (($entry eq 'stores') || ($entry eq 'parameter')) { |
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my $unikey=$entry; |
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$unikey.='_'.$token->[2]->{'part'}; |
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$unikey.='_'.$token->[2]->{'name'}; |
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$returnhash{$unikey}=$token->[2]->{'display'}; |
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} |
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} |
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} |
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return %returnhash; |
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} |
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# ----------------------------------------------------------------- Update rows |
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sub updaterows { |
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my $safeeval=shift; |
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my %bighash; |
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# -------------------------------------------------------------------- Tie hash |
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if (tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db', |
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&GDBM_READER,0640)) { |
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# --------------------------------------------------------- Get all assessments |
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my %allkeys=(); |
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my %allassess=(); |
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my $stype=&gettype($safeeval); |
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map { |
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if ($_=~/^src\_(\d+)\.(\d+)$/) { |
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my $mapid=$1; |
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my $resid=$2; |
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my $id=$mapid.'.'.$resid; |
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my $srcf=$bighash{$_}; |
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if ($srcf=~/\.(problem|exam|quiz|assess|survey|form)$/) { |
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my $symb= |
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&Apache::lonnet::declutter($bighash{'map_id_'.$mapid}). |
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'___'.$resid.'___'. |
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&Apache::lonnet::declutter($srcf); |
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$allassess{$symb}=$bighash{'title_'.$id}; |
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if ($stype eq 'assesssheet') { |
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map { |
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if ($_=~/^stores\_(.*)/) { |
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my $key=$_; |
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my $display= |
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&Apache::lonnet::metadata($srcf,$key.'.display'); |
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unless ($display) { |
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$display= |
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&Apache::lonnet::metadata($srcf,$key.'.name'); |
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} |
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$allkeys{$key}=$display; |
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} |
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} split(/\,/,&Apache::lonnet::metadata($srcf,'keys')); |
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} |
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} |
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} |
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} keys %bighash; |
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untie(%bighash); |
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# |
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# %allkeys has a list of storage displays by unikey |
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# %allassess has a list of all resource displays by symb |
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# |
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# -------------------- Find discrepancies between the course row table and this |
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# |
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my %f=&getformulas($safeeval); |
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map { |
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if ($_=~/^A/) { |
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if ($stype eq 'assesssheet') { |
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} elsif ($stype eq 'coursesheet') { |
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} |
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} |
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} keys %f; |
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# ------------------------------------------------ Find new and obsolete values |
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} else { |
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return 'Could not access course data'; |
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} |
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} |
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# ----------------------------------------------------------------------------- |
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sub handler { |
sub handler { |
%v=(); |
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%t=(); |
my $r=shift; |
%f=(); |
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my $safeeval = new Safe; |
$r->content_type('text/html'); |
$safeeval->permit("entereval"); |
$r->send_http_header; |
$safeeval->permit(":base_math"); |
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$safeeval->permit("sort"); |
$r->print('<html><head><title>LON-CAPA Spreadsheet</title></head>'); |
$safeeval->deny(":base_io"); |
$r->print('<body bgcolor="#FFFFFF">'); |
# $safeeval->share_from('Apache::lonnet',['&EXT']); |
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$safeeval->share('%v','%t','%f'); |
my $sheetone=initsheet(); |
&deffunc($safeeval); |
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$f{'A3'}=5; |
&setformulas($sheetone,('A1' => '5', 'B2' => '6', 'C4' => 'A1+B2')); |
$f{'A4'}=3; |
$r->print(&calcsheet($sheetone)); |
$f{'A5'}=8; |
my %output=&getformulas($sheetone); |
$f{'E100'}=5; |
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$f{'C3'}='A3+6'; |
$r->print('FORM:'.$output{'A1'}.' '.$output{'B2'}.' '.$output{'C4'}); |
$f{'B4'}='8+int(C3/3)'; |
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$f{'C7'}='A3+B4'; |
my %output=&getvalues($sheetone); |
$f{'G8'}='MEAN("E*")'; |
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$f{'G5'}='A3+SUMMIN(2,"A*")'; |
$r->print('<br>OUT:'.$output{'A1'}.' '.$output{'B2'}.' '.$output{'C4'}); |
$f{'G6'}='A3+SUM("A*")'; |
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$f{'G7'}='STDDEV("A*")'; |
$r->print('</body></html>'); |
$f{'G9'}='NUM("G*")'; |
return OK; |
$f{'H10'}='MEAN("E*")'; |
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$f{'G10'}='BIN(3,5,"A*")'; |
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&sett(); |
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print &calcv($safeeval)."\n"; |
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print $v{'C7'}."\n"; |
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print $t{'G5'}.' - '.$v{'G5'}."\n"; |
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print $t{'G6'}.' - '.$v{'G6'}."\n"; |
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print $t{'G7'}.' - '.$v{'G7'}."\n"; |
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print $t{'G8'}.' - '.$v{'G8'}."\n"; |
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print $t{'G9'}.' - '.$v{'G9'}."\n"; |
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print $t{'G10'}.' - '.$v{'G10'}."\n"; |
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} |
} |
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1; |
1; |