version 1.1, 2000/11/15 10:37:27
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version 1.9, 2000/12/08 17:16:37
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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 |
# 11/11,11/15,11/27,12/04,12/05,12/06,12/07,12/08 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 :http); |
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use HTML::TokeParser; |
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use GDBM_File; |
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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 $code=<<'ENDDEFS'; |
# ---------------------------------------------------- Inside of the safe space |
# ---------------------------------------------------- Inside of the safe space |
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# |
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# f: formulas |
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# t: intermediate format (variable references expanded) |
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# v: output values |
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# c: preloaded constants (A-column) |
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# rl: row label |
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%v=(); |
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%t=(); |
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%f=(); |
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%c=(); |
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%rl=(); |
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$maxrow=0; |
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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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$lower=~/([A-Z]|\*)(\d+|\*)/; |
$lower=~/([A-Za-z]|\*)(\d+|\*)/; |
my $la=$1; |
my $la=$1; |
my $ld=$2; |
my $ld=$2; |
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$upper=~/([A-Z]|\*)(\d+|\*)/; |
$upper=~/([A-Za-z]|\*)(\d+|\*)/; |
my $ua=$1; |
my $ua=$1; |
my $ud=$2; |
my $ud=$2; |
my $alpha=''; |
my $alpha=''; |
my $num=''; |
my $num=''; |
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if (($la eq '*') || ($ua eq '*')) { |
if (($la eq '*') || ($ua eq '*')) { |
$alpha='[A-Z]'; |
$alpha='[A-Za-z]'; |
} else { |
} else { |
$alpha='['.$la.'-'.$ua.']'; |
if (($la=~/[A-Z]/) && ($ua=~/[A-Z]/) || |
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($la=~/[a-z]/) && ($ua=~/[a-z]/)) { |
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$alpha='['.$la.'-'.$ua.']'; |
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} else { |
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$alpha='['.$la.'-Za-'.$ua.']'; |
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} |
} |
} |
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if (($ld eq '*') || ($ud eq '*')) { |
if (($ld eq '*') || ($ud eq '*')) { |
Line 55 sub mask {
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Line 88 sub mask {
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} else { |
} else { |
my @lda=($ld=~m/\d/g); |
my @lda=($ld=~m/\d/g); |
my @uda=($ud=~m/\d/g); |
my @uda=($ud=~m/\d/g); |
my $i; $j=0; |
my $i; $j=0; $notdone=1; |
for ($i=0;$i<=$#lda;$i++) { |
for ($i=0;($i<=$#lda)&&($notdone);$i++) { |
if ($lda[$i]==$uda[$i]) { |
if ($lda[$i]==$uda[$i]) { |
$num.=$lda[$i]; |
$num.=$lda[$i]; |
$j=$i; |
$j=$i; |
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} else { |
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$notdone=0; |
} |
} |
} |
} |
if ($j<$#lda-1) { |
if ($j<$#lda-1) { |
Line 77 sub mask {
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Line 112 sub mask {
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} |
} |
$num.=')'; |
$num.=')'; |
} else { |
} else { |
$num.='['.$lda[$#lda].'-'.$uda[$#uda].']'; |
if ($lda[$#lda]!=$uda[$#uda]) { |
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$num.='['.$lda[$#lda].'-'.$uda[$#uda].']'; |
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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 241 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($code); |
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} |
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sub sett { |
sub sett { |
%t=(); |
%t=(); |
map { |
map { |
if ($f{$_}) { |
if ($f{$_}) { |
$t{$_}=$f{$_}; |
if ($_=~/^A/) { |
$t{$_}=~s/\.+/\,/g; |
unless ($f{$_}=~/^\!/) { |
$t{$_}=~s/(^|[^\"\'])([A-Z]\d+)/$1\$v\{\'$2\'\}/g; |
$t{$_}=$c{$_}; |
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} |
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} else { |
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$t{$_}=$f{$_}; |
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$t{$_}=~s/\.\.+/\,/g; |
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$t{$_}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$v\{\'$2\'\}/g; |
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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 283 sub calcv {
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return ''; |
return ''; |
} |
} |
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sub outrow { |
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my $n=shift; |
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my @cols=(); |
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if ($n) { |
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$cols[0]=$rl{$f{'A'.$n}}; |
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} else { |
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$cols[0]='<b><font size=+1>Export</font></b>'; |
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} |
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map { |
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my $fm=$f{$_.$n}; |
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$fm=~s/[\'\"]/\&\#34;/g; |
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$cols[$#cols+1]="'$_$n','$fm'".'___eq___'.$v{$_.$n}; |
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} ('A','B','C','D','E','F','G','H','I','J','K','L','M', |
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'N','O','P','Q','R','S','T','U','V','W','X','Y','Z', |
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'a','b','c','d','e','f','g','h','i','j','k','l','m', |
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'n','o','p','q','r','s','t','u','v','w','x','y','z'); |
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return @cols; |
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} |
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# ------------------------------------------- End of "Inside of the safe space" |
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ENDDEFS |
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$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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$safeeval->reval('%f='."('".join("','",@f)."');"); |
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} |
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# ------------------------------------------------ Add or change formula values |
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sub setconstants { |
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my ($safeeval,@c)=@_; |
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$safeeval->reval('%c='."('".join("','",@c)."');"); |
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} |
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# ------------------------------------------------ Add or change formula values |
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sub setrowlabels { |
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my ($safeeval,@rl)=@_; |
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$safeeval->reval('%rl='."('".join("','",@rl)."');"); |
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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 maxrow |
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sub setmaxrow { |
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my ($safeeval,$row)=@_; |
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$safeeval->reval('$maxrow='.$row.';'); |
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} |
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# ------------------------------------------------------------------ Get maxrow |
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sub getmaxrow { |
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my $safeeval=shift; |
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return $safeeval->reval('$maxrow'); |
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} |
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# ---------------------------------------------------------------- Set filename |
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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 filename |
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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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# --------------------------------------------- Produce output row n from sheet |
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sub rown { |
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my ($safeeval,$n)=@_; |
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my $defaultbg=((($n-1)/5)==int(($n-1)/5))?'#E0E0':'#FFFF'; |
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my $rowdata="\n<tr><td><b><font size=+1>$n</font></b></td>"; |
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my $showf=0; |
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map { |
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my $bgcolor=$defaultbg.((($showf-1)/5==int(($showf-1)/5))?'99':'DD'); |
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my ($fm,$vl)=split(/\_\_\_eq\_\_\_/,$_); |
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if ($showf==0) { $vl=$_; } |
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if ($showf<=1) { $bgcolor='#FFDDDD'; } |
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if (($n==0) && ($showf<=26)) { $bgcolor='#CCCCFF'; } |
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if ($showf>1) { |
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if ($vl eq '') { |
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$vl='<font size=+2 color='.$bgcolor.'>#</font>'; |
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} |
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$rowdata.= |
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'<td bgcolor='.$bgcolor.'><a href="javascript:prompt('.$fm.');">'.$vl. |
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'</a></td>'; |
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} else { |
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$rowdata.='<td bgcolor='.$bgcolor.'> '.$vl.' </td>'; |
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} |
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$showf++; |
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} $safeeval->reval('&outrow('.$n.')'); |
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return $rowdata.'</tr>'; |
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} |
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# ------------------------------------------------------------- Print out sheet |
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sub outsheet { |
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my $safeeval=shift; |
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my $tabledata='<table border=2><tr><td colspan=2> </td>'. |
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'<td bgcolor=#FFDDDD><b>A Import</b></td>'; |
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map { |
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$tabledata.="<td><b><font size=+1>$_</font></b></td>"; |
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} ('B','C','D','E','F','G','H','I','J','K','L','M', |
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'N','O','P','Q','R','S','T','U','V','W','X','Y','Z', |
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'a','b','c','d','e','f','g','h','i','j','k','l','m', |
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'n','o','p','q','r','s','t','u','v','w','x','y','z'); |
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$tabledata.='</tr>'; |
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my $row; |
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my $maxrow=&getmaxrow($safeeval); |
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for ($row=0;$row<=$maxrow;$row++) { |
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$tabledata.=&rown($safeeval,$row); |
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} |
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$tabledata.='</table>'; |
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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)=@_; |
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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 $fh; |
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if ($fh=Apache::File->new($fn)) { |
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$content=join('',<$fh>); |
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} |
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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 'assesscalc') { |
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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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my $changed=0; |
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my %current=(); |
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if ($stype eq 'assesscalc') { |
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%current=%allkeys; |
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} elsif ($stype eq 'studentcalc') { |
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%current=%allassess; |
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} |
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my $maxrow=0; |
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my %existing=(); |
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# ----------------------------------------------------------- Now obsolete rows |
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map { |
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if ($_=~/^A(\d+)/) { |
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$maxrow=($1>$maxrow)?$1:$maxrow; |
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$existing{$f{$_}}=1; |
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unless (defined($current{$f{$_}})) { |
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$f{$_}='!!! Obsolete'; |
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$changed=1; |
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} |
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} |
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} keys %f; |
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# -------------------------------------------------------- New and unknown keys |
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map { |
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unless ($existing{$_}) { |
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$changed=1; |
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$maxrow++; |
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$f{'A'.$maxrow}=$_; |
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} |
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} keys %current; |
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if ($changed) { &setformulas($safeeval,%f); } |
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&setmaxrow($safeeval,$maxrow); |
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&setrowlabels($safeeval,%current); |
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} else { |
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return 'Could not access course data'; |
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} |
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} |
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# ------------------------------------------------ Load data for one assessment |
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sub rowaassess { |
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my ($safeeval,$uname,$udom,$symb)=@_; |
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my $uhome=&Apache::lonnet::homeserver($uname,$udom); |
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my $namespace; |
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unless ($namespace=$ENV{'request.course.id'}) { return ''; } |
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my $answer=reply("restore:$udom:$uname:$namespace:$symb",$uhome); |
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my %returnhash=(); |
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map { |
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my ($name,$value)=split(/\=/,$_); |
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$returnhash{&unescape($name)}=&unescape($value); |
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} split(/\&/,$answer); |
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my $version; |
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for ($version=1;$version<=$returnhash{'version'};$version++) { |
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map { |
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$returnhash{$_}=$returnhash{$version.':'.$_}; |
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} split(/\:/,$returnhash{$version.':keys'}); |
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} |
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my %c=(); |
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my %f=&getformulas($safeeval); |
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map { |
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if ($_=~/^A/) { |
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unless ($f{$_}=~/^\!/) { |
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$c{$_}=$returnhash{$f{$_}}; |
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} |
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} |
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} keys %f; |
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&setconstants($safeeval,%c); |
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} |
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sub handler { |
sub handler { |
%v=(); |
my $r=shift; |
%t=(); |
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%f=(); |
if ($r->header_only) { |
my $safeeval = new Safe; |
$r->content_type('text/html'); |
$safeeval->permit("entereval"); |
$r->send_http_header; |
$safeeval->permit(":base_math"); |
return OK; |
$safeeval->permit("sort"); |
} |
$safeeval->deny(":base_io"); |
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# $safeeval->share_from('Apache::lonnet',['&EXT']); |
# ----------------------------------------------------- Needs to be in a course |
$safeeval->share('%v','%t','%f'); |
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&deffunc($safeeval); |
if (($ENV{'request.course.fn'}) || |
$f{'A3'}=5; |
($ENV{'request.state'} eq 'construct')) { |
$f{'A4'}=3; |
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$f{'A5'}=8; |
$r->content_type('text/html'); |
$f{'E100'}=5; |
$r->send_http_header; |
$f{'C3'}='A3+6'; |
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$f{'B4'}='8+int(C3/3)'; |
$r->print('<html><head><title>LON-CAPA Spreadsheet</title></head>'); |
$f{'C7'}='A3+B4'; |
$r->print('<body bgcolor="#FFFFFF">'); |
$f{'G8'}='MEAN("E*")'; |
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$f{'G5'}='A3+SUMMIN(2,"A*")'; |
my $sheetone=initsheet(); |
$f{'G6'}='A3+SUM("A*")'; |
&readsheet($sheetone,$r->filename); |
$f{'G7'}='STDDEV("A*")'; |
&updaterows($sheetone); |
$f{'G9'}='NUM("G*")'; |
&calcsheet($sheetone); |
$f{'H10'}='MEAN("E*")'; |
$r->print(&outsheet($sheetone)); |
$f{'G10'}='BIN(3,5,"A*")'; |
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&sett(); |
$r->print('</body></html>'); |
print &calcv($safeeval)."\n"; |
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print $v{'C7'}."\n"; |
} else { |
print $t{'G5'}.' - '.$v{'G5'}."\n"; |
# ----------------------------- Not in a course, or not allowed to modify parms |
print $t{'G6'}.' - '.$v{'G6'}."\n"; |
$ENV{'user.error.msg'}= |
print $t{'G7'}.' - '.$v{'G7'}."\n"; |
$r->uri.":opa:0:0:Cannot modify spreadsheet"; |
print $t{'G8'}.' - '.$v{'G8'}."\n"; |
return HTTP_NOT_ACCEPTABLE; |
print $t{'G9'}.' - '.$v{'G9'}."\n"; |
} |
print $t{'G10'}.' - '.$v{'G10'}."\n"; |
return OK; |
} |
} |
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1; |
1; |