loncom/interface/spreadsheet/Spreadsheet.pm - diff

Return to Spreadsheet.pm CVS log

Up to [LON-CAPA] / loncom / interface / spreadsheet

Diff for /loncom/interface/spreadsheet/Spreadsheet.pm between versions 1.15 and 1.64

version 1.15, 2003/06/18 19:09:23	version 1.64, 2006/03/05 21:35:10
Line 48 Spreadsheet	Line 48 Spreadsheet
package Apache::Spreadsheet;	package Apache::Spreadsheet;

use strict;	use strict;
	#use warnings FATAL=>'all';
	#no warnings 'uninitialized';
use Apache::Constants qw(:common :http);	use Apache::Constants qw(:common :http);
use Apache::lonnet;	use Apache::lonnet;
use Safe;	use Safe;
Line 57 use HTML::Entities();	Line 59 use HTML::Entities();
use HTML::TokeParser;	use HTML::TokeParser;
use Spreadsheet::WriteExcel;	use Spreadsheet::WriteExcel;
use Time::HiRes;	use Time::HiRes;
	use Apache::lonlocal;

##	##
## Package Variables	## Package Variables
Line 83 sub new {	Line 86 sub new {
my ($stype) = ($class =~ /Apache::(.*)$/);	my ($stype) = ($class =~ /Apache::(.*)$/);
#	#
my ($name,$domain,$filename,$usymb)=@_;	my ($name,$domain,$filename,$usymb)=@_;
	if (defined($usymb) && ref($usymb)) {
	$usymb = $usymb->symb;
	}
	if (! defined($name) \|\| $name eq '') {
	$name = $env{'user.name'};
	}
	if (! defined($domain) \|\| $domain eq '') {
	$domain = $env{'user.domain'};
	}
#	#
my $self = {	my $self = {
name => $name,	name => $name,
Line 90 sub new {	Line 102 sub new {
type => $stype,	type => $stype,
symb => $usymb,	symb => $usymb,
errorlog => '',	errorlog => '',
maxrow => '',	maxrow => 0,
cid => $ENV{'request.course.id'},	cid => $env{'request.course.id'},
cnum => $ENV{'course.'.$ENV{'request.course.id'}.'.num'},	cnum => $env{'course.'.$env{'request.course.id'}.'.num'},
cdom => $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},	cdom => $env{'course.'.$env{'request.course.id'}.'.domain'},
chome => $ENV{'course.'.$ENV{'request.course.id'}.'.home'},	coursedesc => $env{'course.'.$env{'request.course.id'}.'.description'},
coursedesc => $ENV{'course.'.$ENV{'request.course.id'}.'.description'},	coursefilename => $env{'request.course.fn'},
coursefilename => $ENV{'request.course.fn'},
#	#
# Flags	# Flags
temporary => 0, # true if this sheet has been modified but not saved	temporary => 0, # true if this sheet has been modified but not saved
new_rows => 0, # true if this sheet has new rows	new_rows => 0, # true if this sheet has new rows
	loaded => 0, # true if the formulas have been loaded
#	#
# blackout is used to determine if any data needs to be hidden from the	# blackout is used to determine if any data needs to be hidden from the
# student.	# student.
Line 114 sub new {	Line 126 sub new {
othersheets => [],	othersheets => [],
};	};
#	#
$self->{'uhome'} = &Apache::lonnet::homeserver($name,$domain);
#
bless($self,$class);	bless($self,$class);
#
# Load in the spreadsheet definition
$self->filename($filename);	$self->filename($filename);
if (exists($ENV{'form.workcopy'}) &&	#
$self->{'type'} eq $ENV{'form.workcopy'}) {
$self->load_tmp();
} else {
$self->load();
}
return $self;	return $self;
}	}

Line 148 sub filename {	Line 151 sub filename {
$newfilename !~ /\w/ \|\| $newfilename eq '') {	$newfilename !~ /\w/ \|\| $newfilename eq '') {
my $key = 'course.'.$self->{'cid'}.'.spreadsheet_default_'.	my $key = 'course.'.$self->{'cid'}.'.spreadsheet_default_'.
$self->{'type'};	$self->{'type'};
if (exists($ENV{$key}) && $ENV{$key} ne '') {	if (exists($env{$key}) && $env{$key} ne '') {
$newfilename = $ENV{$key};	$newfilename = $env{$key};
} else {	} else {
$newfilename = 'default_'.$self->{'type'};	$newfilename = 'default_'.$self->{'type'};
}	}
Line 157 sub filename {	Line 160 sub filename {
if ($newfilename !~ /\w/ \|\| $newfilename =~ /^\W*$/) {	if ($newfilename !~ /\w/ \|\| $newfilename =~ /^\W*$/) {
$newfilename = 'default_'.$self->{'type'};	$newfilename = 'default_'.$self->{'type'};
}	}
if ($newfilename !~ /^default\.$self->{'type'}$/ ) {	if ($newfilename !~ /^default\.$self->{'type'}$/ &&
	$newfilename !~ /^\/res\/(.*)spreadsheet$/) {
if ($newfilename !~ /_$self->{'type'}$/) {	if ($newfilename !~ /_$self->{'type'}$/) {
$newfilename =~ s/[\s_]*$//;	$newfilename =~ s/[\s_]*$//;
$newfilename .= '_'.$self->{'type'};	$newfilename .= '_'.$self->{'type'};
Line 187 sub make_default {	Line 191 sub make_default {
{'spreadsheet_default_'.$self->{'type'} => $self->filename()},	{'spreadsheet_default_'.$self->{'type'} => $self->filename()},
$self->{'cdom'},$self->{'cnum'});	$self->{'cdom'},$self->{'cnum'});
return $result if ($result ne 'ok');	return $result if ($result ne 'ok');
	&Apache::lonnet::appenv('course.'.$self->{'cid'}.'.spreadsheet_default_'.
	$self->{'type'} => $self->filename());
my $symb = $self->{'symb'};	my $symb = $self->{'symb'};
$symb = '' if (! defined($symb));	$symb = '' if (! defined($symb));
&Apache::lonnet::expirespread('','',$self->{'type'},$symb);	&Apache::lonnet::expirespread('','',$self->{'type'},$symb);
Line 207 course environment. Returns 0 otherwise	Line 213 course environment. Returns 0 otherwise
sub is_default {	sub is_default {
my $self = shift;	my $self = shift;
# Check to find out if we are the default spreadsheet (filenames match)	# Check to find out if we are the default spreadsheet (filenames match)
my $default_filename = '';	my $default_filename = $env{'course.'.$self->{'cid'}.
my %tmphash = &Apache::lonnet::get('environment',	'.spreadsheet_default_'.$self->{'type'}};
['spreadsheet_default_'.
$self->{'type'}],
$self->{'cdom'},
$self->{'cnum'});
my ($tmp) = keys(%tmphash);
if ($tmp !~ /^(con_lost\|error\|no_such_host)/i) {
$default_filename = $tmphash{'spreadsheet_default_'.$self->{'type'}};
}
if ($default_filename =~ /^\s*$/) {	if ($default_filename =~ /^\s*$/) {
$default_filename = 'default_'.$self->{'type'};	$default_filename = 'default_'.$self->{'type'};
}	}
Line 229 sub initialize {	Line 227 sub initialize {
# the descendents of the spreadsheet class.	# the descendents of the spreadsheet class.
}	}

	sub clear_package {
	# This method is here to remind you that it will be overridden by
	# the descendents of the spreadsheet class.
	}

	sub cleanup {
	my $self = shift();
	$self->clear_package();
	}

sub initialize_spreadsheet_package {	sub initialize_spreadsheet_package {
&load_spreadsheet_expirationdates();	&load_spreadsheet_expirationdates();
&clear_spreadsheet_definition_cache();	&clear_spreadsheet_definition_cache();
Line 236 sub initialize_spreadsheet_package {	Line 244 sub initialize_spreadsheet_package {

sub load_spreadsheet_expirationdates {	sub load_spreadsheet_expirationdates {
undef %expiredates;	undef %expiredates;
my $cid=$ENV{'request.course.id'};	my $cid=$env{'request.course.id'};
my @tmp = &Apache::lonnet::dump('nohist_expirationdates',	my @tmp = &Apache::lonnet::dump('nohist_expirationdates',
$ENV{'course.'.$cid.'.domain'},	$env{'course.'.$cid.'.domain'},
$ENV{'course.'.$cid.'.num'});	$env{'course.'.$cid.'.num'});
if (lc($tmp[0]) !~ /^error/){	if (lc($tmp[0]) !~ /^error/){
%expiredates = @tmp;	%expiredates = @tmp;
}	}
Line 248 sub load_spreadsheet_expirationdates {	Line 256 sub load_spreadsheet_expirationdates {
sub check_expiration_time {	sub check_expiration_time {
my $self = shift;	my $self = shift;
my ($time)=@_;	my ($time)=@_;
my ($key1,$key2,$key3,$key4);	return 0 if (! defined($time));
	my ($key1,$key2,$key3,$key4,$key5);
	# Description of keys
	#
	# key1: all sheets of this type have expired
	# key2: all sheets of this type for this student
	# key3: all sheets of this type in this map for this student
	# key4: this assessment sheet for this student
	# key5: this assessment sheet for all students
$key1 = '::'.$self->{'type'}.':';	$key1 = '::'.$self->{'type'}.':';
$key2 = $self->{'name'}.':'.$self->{'domain'}.':'.$self->{'type'}.':';	$key2 = $self->{'name'}.':'.$self->{'domain'}.':'.$self->{'type'}.':';
$key3 = $key2.$self->{'container'} if (defined($self->{'container'}));	$key3 = $key2.$self->{'container'} if (defined($self->{'container'}));
$key4 = $key2.$self->{'usymb'} if (defined($self->{'usymb'}));	$key4 = $key2.$self->{'symb'} if (defined($self->{'symb'}));
foreach my $key ($key1,$key2,$key3,$key4) {	$key5 = $key1.$self->{'symb'} if (defined($self->{'symb'}));
	my $returnvalue = 1; # default to okay
	foreach my $key ($key1,$key2,$key3,$key4,$key5) {
next if (! defined($key));	next if (! defined($key));
if (exists($expiredates{$key}) &&$expiredates{$key} > $time) {	if (exists($expiredates{$key}) && $expiredates{$key} > $time) {
return 0;	$returnvalue = 0; # need to recompute
}	}
}	}
return 1;	return $returnvalue;
}	}

######################################################	######################################################
Line 277 Returns the safe space required by a Spr	Line 295 Returns the safe space required by a Spr
=cut	=cut

######################################################	######################################################
	{

	my $safeeval;

sub initialize_safe_space {	sub initialize_safe_space {
my $self = shift;	my $self = shift;
my $safeeval = new Safe(shift);	my $usection = &Apache::lonnet::getsection($self->{'domain'},
my $safehole = new Safe::Hole;	$self->{'name'},
$safeeval->permit("entereval");	$env{'request.course.id'});
$safeeval->permit(":base_math");	if (! defined($safeeval)) {
$safeeval->permit("sort");	$safeeval = new Safe(shift);
$safeeval->deny(":base_io");	my $safehole = new Safe::Hole;
$safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT');	$safeeval->permit("entereval");
$safehole->wrap(\&mask,$safeeval,'&mask');	$safeeval->permit(":base_math");
$safeeval->share('$@');	$safeeval->permit("sort");
my $code=<<'ENDDEFS';	$safeeval->deny(":base_io");
	$safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&Apache::lonnet::EXT');
	$safehole->wrap(\&mask,$safeeval,'&mask');
	$safehole->wrap(\&Apache::lonnet::logthis,$safeeval,'&logthis');
	$safeeval->share('$@');
	# Holds the (computed, final) values for the sheet
	# This is only written to by &calc, the spreadsheet computation routine.
	# It is read by many functions
	$safeeval->share('%sheet_values');
	my $code=<<'ENDDEFS';
# ---------------------------------------------------- Inside of the safe space	# ---------------------------------------------------- Inside of the safe space
#	#
# f: formulas	# f: formulas
Line 297 sub initialize_safe_space {	Line 328 sub initialize_safe_space {
# c: preloaded constants (A-column)	# c: preloaded constants (A-column)
# rl: row label	# rl: row label
# os: other spreadsheets (for student spreadsheet only)	# os: other spreadsheets (for student spreadsheet only)
undef %sheet_values; # Holds the (computed, final) values for the sheet	undef %t; # Holds the forumlas of the spreadsheet to be computed. Set in
# This is only written to by &calc, the spreadsheet computation routine.	# &sett, which does the translation of strings like C5 into the value
# It is read by many functions	# in C5. Used in &calc - %t holds the values that are actually eval'd.
undef %t; # Holds the values of the spreadsheet temporarily. Set in &sett,
# which does the translation of strings like C5 into the value in C5.
# Used in &calc - %t holds the values that are actually eval'd.
undef %f; # Holds the formulas for each cell. This is the users	undef %f; # Holds the formulas for each cell. This is the users
# (spreadsheet authors) data for each cell.	# (spreadsheet authors) data for each cell.
undef %c; # Holds the constants for a sheet. In the assessment	undef %c; # Holds the constants for a sheet. In the assessment
Line 323 $filename = '';	Line 351 $filename = '';
#	#
# user data	# user data
$name = '';	$name = '';
$uhome = '';
$domain = '';	$domain = '';
#	#
# course data	# course data
$csec = '';	$csec = '';
$chome= '';
$cnum = '';	$cnum = '';
$cdom = '';	$cdom = '';
$cid = '';	$cid = '';
Line 344 $errormsg = '';	Line 370 $errormsg = '';

=pod	=pod

	=item EXT(parameter)

	Calls the system EXT function to determine the value of the given parameter.

	=cut

	#-------------------------------------------------------
	sub EXT {
	my ($parameter,$specific_symb) = @_;
	return '' if (! defined($parameter) \|\| $parameter eq '');
	$parameter =~ s/^parameter\./resource\./;
	if ($specific_symb eq '') { $specific_symb = $symb; }
	my $value = &Apache::lonnet::EXT($parameter,$specific_symb,$domain,$name,
	$usection);
	return $value;
	}

	#-------------------------------------------------------

	=pod

=item NUM(range)	=item NUM(range)

returns the number of items in the range.	returns the number of items in the range.
Line 352 returns the number of items in the range	Line 399 returns the number of items in the range

#-------------------------------------------------------	#-------------------------------------------------------
sub NUM {	sub NUM {
my $mask=&mask(@_);	my $values=&get_values(@_);
my $num= $#{@{grep(/$mask/,keys(%sheet_values))}}+1;	my $num= scalar(@$values);
return $num;	return $num;
}	}

Line 368 sub NUM {	Line 415 sub NUM {
#-------------------------------------------------------	#-------------------------------------------------------
sub BIN {	sub BIN {
my ($low,$high,$lower,$upper)=@_;	my ($low,$high,$lower,$upper)=@_;
my $mask=&mask($lower,$upper);	my $values=&get_values($lower,$upper);
my $num=0;	my $num=0;
foreach (grep /$mask/,keys(%sheet_values)) {	foreach (@$values) {
if (($sheet_values{$_}>=$low) && ($sheet_values{$_}<=$high)) {	if (($_>=$low) && ($_<=$high)) {
$num++;	$num++;
}	}
}	}
Line 390 returns the sum of items in the range.	Line 437 returns the sum of items in the range.

#-------------------------------------------------------	#-------------------------------------------------------
sub SUM {	sub SUM {
my $mask=&mask(@_);	my $values=&get_values(@_);
my $sum=0;	my $sum=0;
foreach (grep /$mask/,keys(%sheet_values)) {	foreach (@$values) {
$sum+=$sheet_values{$_};	$sum+=$_;
}	}
return $sum;	return $sum;
}	}
Line 410 compute the average of the items in the	Line 457 compute the average of the items in the

#-------------------------------------------------------	#-------------------------------------------------------
sub MEAN {	sub MEAN {
my $mask=&mask(@_);	my $values=&get_values(@_);
my $sum=0;	my $sum=0;
my $num=0;	my $num=0;
foreach (grep /$mask/,keys(%sheet_values)) {	foreach (@$values) {
$sum+=$sheet_values{$_};	$sum+=$_;
$num++;	$num++;
}	}
if ($num) {	if ($num) {
Line 436 compute the standard deviation of the it	Line 483 compute the standard deviation of the it

#-------------------------------------------------------	#-------------------------------------------------------
sub STDDEV {	sub STDDEV {
my $mask=&mask(@_);	my $values=&get_values(@_);
my $sum=0; my $num=0;	my $sum=0; my $num=0;
foreach (grep /$mask/,keys(%sheet_values)) {	foreach (@$values) {
$sum+=$sheet_values{$_};	$sum+=$_;
$num++;	$num++;
}	}
unless ($num>1) { return undef; }	unless ($num>1) { return undef; }
my $mean=$sum/$num;	my $mean=$sum/$num;
$sum=0;	$sum=0;
foreach (grep /$mask/,keys(%sheet_values)) {	foreach (@$values) {
$sum+=($sheet_values{$_}-$mean)**2;	$sum+=($_-$mean)**2;
}	}
return sqrt($sum/($num-1));	return sqrt($sum/($num-1));
}	}
Line 463 compute the product of the items in the	Line 510 compute the product of the items in the

#-------------------------------------------------------	#-------------------------------------------------------
sub PROD {	sub PROD {
my $mask=&mask(@_);	my $values=&get_values(@_);
my $prod=1;	my $prod=1;
foreach (grep /$mask/,keys(%sheet_values)) {	foreach (@$values) {
$prod*=$sheet_values{$_};	$prod*=$_;
}	}
return $prod;	return $prod;
}	}
Line 483 compute the maximum of the items in the	Line 530 compute the maximum of the items in the

#-------------------------------------------------------	#-------------------------------------------------------
sub MAX {	sub MAX {
my $mask=&mask(@_);	my $values=&get_values(@_);
my $max='-';	my $max='-';
foreach (grep /$mask/,keys(%sheet_values)) {	foreach (@$values) {
unless ($max) { $max=$sheet_values{$_}; }	if (($_>$max) \|\| ($max eq '-')) {
if (($sheet_values{$_}>$max) \|\| ($max eq '-')) {	$max=$_;
$max=$sheet_values{$_};
}	}
}	}
return $max;	return $max;
Line 506 compute the minimum of the items in the	Line 552 compute the minimum of the items in the

#-------------------------------------------------------	#-------------------------------------------------------
sub MIN {	sub MIN {
my $mask=&mask(@_);	my $values=&get_values(@_);
my $min='-';	my $min='-';
foreach (grep /$mask/,keys(%sheet_values)) {	foreach (@$values) {
unless ($max) { $max=$sheet_values{$_}; }	if (($_<$min) \|\| ($min eq '-')) {
if (($sheet_values{$_}<$min) \|\| ($min eq '-')) {	$min=$_;
$min=$sheet_values{$_};
}	}
}	}
return $min;	return $min;
Line 531 compute the sum of the largest 'num' ite	Line 576 compute the sum of the largest 'num' ite
#-------------------------------------------------------	#-------------------------------------------------------
sub SUMMAX {	sub SUMMAX {
my ($num,$lower,$upper)=@_;	my ($num,$lower,$upper)=@_;
my $mask=&mask($lower,$upper);	my $values=&get_values($lower,$upper);
my @inside=();	my @inside=sort {$a <=> $b} (@$values);
foreach (grep /$mask/,keys(%sheet_values)) {
push (@inside,$sheet_values{$_});
}
@inside=sort(@inside);
my $sum=0; my $i;	my $sum=0; my $i;
for ($i=$#inside;(($i>$#inside-$num) && ($i>=0));$i--) {	for ($i=$#inside;(($i>$#inside-$num) && ($i>=0));$i--) {
$sum+=$inside[$i];	$sum+=$inside[$i];
Line 558 compute the sum of the smallest 'num' it	Line 599 compute the sum of the smallest 'num' it
#-------------------------------------------------------	#-------------------------------------------------------
sub SUMMIN {	sub SUMMIN {
my ($num,$lower,$upper)=@_;	my ($num,$lower,$upper)=@_;
my $mask=&mask($lower,$upper);	my $values=&get_values($lower,$upper);
my @inside=();	my @inside=sort {$a <=> $b} (@$values);
foreach (grep /$mask/,keys(%sheet_values)) {
$inside[$#inside+1]=$sheet_values{$_};
}
@inside=sort(@inside);
my $sum=0; my $i;	my $sum=0; my $i;
for ($i=0;(($i<$num) && ($i<=$#inside));$i++) {	for ($i=0;(($i<$num) && ($i<=$#inside));$i++) {
$sum+=$inside[$i];	$sum+=$inside[$i];
Line 586 parametername should be a string such as	Line 623 parametername should be a string such as
sub MINPARM {	sub MINPARM {
my ($expression) = @_;	my ($expression) = @_;
my $min = undef;	my $min = undef;
study($expression);
foreach $parameter (keys(%c)) {	foreach $parameter (keys(%c)) {
next if ($parameter !~ /$expression/);	next if ($parameter !~ /$expression/);
if ((! defined($min)) \|\| ($min > $c{$parameter})) {	if ((! defined($min)) \|\| ($min > $c{$parameter})) {
Line 611 parametername should be a string such as	Line 647 parametername should be a string such as
sub MAXPARM {	sub MAXPARM {
my ($expression) = @_;	my ($expression) = @_;
my $max = undef;	my $max = undef;
study($expression);
foreach $parameter (keys(%c)) {	foreach $parameter (keys(%c)) {
next if ($parameter !~ /$expression/);	next if ($parameter !~ /$expression/);
if ((! defined($min)) \|\| ($max < $c{$parameter})) {	if ((! defined($min)) \|\| ($max < $c{$parameter})) {
Line 621 sub MAXPARM {	Line 656 sub MAXPARM {
return $max;	return $max;
}	}

	#-------------------------------------------------------

	=pod

	=item &get_values($lower,$upper)

	Inputs: $lower and $upper, cell names ("X12" or "a150") or globs ("X*").

	Returns: an array ref of the values of the cells that exist in the
	speced range

	=cut

	#-------------------------------------------------------
	sub get_values {
	my ($lower,$upper)=@_;
	$upper = $lower if (! defined($upper));
	my @values;
	my ($la,$ld) = ($lower=~/([A-z]\|\)(\d+\|\)/);
	my ($ua,$ud) = ($upper=~/([A-z]\|\)(\d+\|\)/);
	my ($alpha,$num);
	if ($ld ne '' && $ud ne '') {
	my @alpha;
	if (($la eq '') \|\| ($ua eq '')) {
	@alpha=('A'..'z');
	} else {
	if ($la gt $ua) { ($la,$ua)=($ua,$la); }
	if ((lc($la) ne $la) && (lc($ua) eq $ua)) {
	@alpha=($la..'Z','a'..$ua);
	} else {
	@alpha=($la..$ua);
	}
	}
	my @num=($ld..$ud);
	foreach my $a (@alpha) {
	foreach my $n (@num) {
	if (exists($sheet_values{$a.$n})) {
	push(@values,$sheet_values{$a.$n});
	}
	}
	}
	return \@values;
	} else {
	$num = '([1-9]\d*)';
	}
	if (($la eq '') \|\| ($ua eq '')) {
	$alpha='[A-z]';
	} else {
	if ($la gt $ua) { ($la,$ua)=($ua,$la); }
	$alpha=qq/[$la-$ua]/;
	}
	my $expression = '^'.$alpha.$num.'$';
	foreach (grep /$expression/,keys(%sheet_values)) {
	push(@values,$sheet_values{$_});
	}
	return \@values;
	}

sub calc {	sub calc {
%sheet_values = %t;
my $notfinished = 1;	my $notfinished = 1;
my $lastcalc = '';	my $lastcalc = '';
my $depth = 0;	my $depth = 0;
Line 631 sub calc {	Line 722 sub calc {
$notfinished=0;	$notfinished=0;
while (my ($cell,$value) = each(%t)) {	while (my ($cell,$value) = each(%t)) {
my $old=$sheet_values{$cell};	my $old=$sheet_values{$cell};
$sheet_values{$cell}=eval $value;	#$sheet_values{$cell}=eval $value;
# $errorlog .= $cell.' = '.$old.'->'.$sheet_values{$cell}."\n";	# $errorlog .= $cell.' = '.$old.'->'.$sheet_values{$cell}."\n";
if ($@) {	if ($@) {
undef %sheet_values;	undef %sheet_values;
Line 650 sub calc {	Line 741 sub calc {
return $lastcalc.': Maximum calculation depth exceeded';	return $lastcalc.': Maximum calculation depth exceeded';
}	}
}	}
return '';	return 'okay';
}	}

# ------------------------------------------- End of "Inside of the safe space"	# ------------------------------------------- End of "Inside of the safe space"
ENDDEFS	ENDDEFS
$safeeval->reval($code);	$safeeval->reval($code);
	}
$self->{'safe'} = $safeeval;	$self->{'safe'} = $safeeval;
$self->{'root'} = $self->{'safe'}->root();	$self->{'root'} = $self->{'safe'}->root();
#	#
# Place some of the %$self items into the safe space except the safe space	# Place some of the %$self items into the safe space except the safe space
# itself	# itself
my $initstring = '';	my $initstring = '';
foreach (qw/name domain type usymb cid csec coursefilename	foreach (qw/name domain type symb cid csec coursefilename
cnum cdom chome uhome/) {	cnum cdom/) {
$initstring.= qq{\$$_="$self->{$_}";};	$initstring.= qq{\$$_="$self->{$_}";};
}	}
	$initstring.=qq{\$usection="$usection";};
$self->{'safe'}->reval($initstring);	$self->{'safe'}->reval($initstring);
return $self;	return $self;
}	}

	}

######################################################	######################################################

=pod	=pod
Line 679 ENDDEFS	Line 775 ENDDEFS

######################################################	######################################################


######################################################


######################################################
{

my %memoizer;

sub mask {
my ($lower,$upper)=@_;
my $key = $lower.'_'.$upper;
if (exists($memoizer{$key})) {
return $memoizer{$key};
}
$upper = $lower if (! defined($upper));
#
my ($la,$ld) = ($lower=~/([A-Za-z]\|\)(\d+\|\)/);
my ($ua,$ud) = ($upper=~/([A-Za-z]\|\)(\d+\|\)/);
#
my $alpha='';
my $num='';
#
if (($la eq '') \|\| ($ua eq '')) {
$alpha='[A-Za-z]';
} else {
if (($la=~/[A-Z]/) && ($ua=~/[A-Z]/) \|\|
($la=~/[a-z]/) && ($ua=~/[a-z]/)) {
$alpha='['.$la.'-'.$ua.']';
} else {
$alpha='['.$la.'-Za-'.$ua.']';
}
}
if (($ld eq '') \|\| ($ud eq '')) {
$num='\d+';
} else {
if (length($ld)!=length($ud)) {
$num.='(';
foreach ($ld=~m/\d/g) {
$num.='['.$_.'-9]';
}
if (length($ud)-length($ld)>1) {
$num.='\|\d{'.(length($ld)+1).','.(length($ud)-1).'}';
}
$num.='\|';
foreach ($ud=~m/\d/g) {
$num.='[0-'.$_.']';
}
$num.=')';
} else {
my @lda=($ld=~m/\d/g);
my @uda=($ud=~m/\d/g);
my $i;
my $j=0;
my $notdone=1;
for ($i=0;($i<=$#lda)&&($notdone);$i++) {
if ($lda[$i]==$uda[$i]) {
$num.=$lda[$i];
$j=$i;
} else {
$notdone=0;
}
}
if ($j<$#lda-1) {
$num.='('.$lda[$j+1];
for ($i=$j+2;$i<=$#lda;$i++) {
$num.='['.$lda[$i].'-9]';
}
if ($uda[$j+1]-$lda[$j+1]>1) {
$num.='\|['.($lda[$j+1]+1).'-'.($uda[$j+1]-1).']\d{'.
($#lda-$j-1).'}';
}
$num.='\|'.$uda[$j+1];
for ($i=$j+2;$i<=$#uda;$i++) {
$num.='[0-'.$uda[$i].']';
}
$num.=')';
} else {
if ($lda[-1]!=$uda[-1]) {
$num.='['.$lda[-1].'-'.$uda[-1].']';
}
}
}
}
my $expression ='^'.$alpha.$num."\$";
$memoizer{$key} = $expression;
return $expression;
}

}

##	##
## sub add_hash_to_safe {} # spreadsheet, would like to destroy	## sub add_hash_to_safe {} # spreadsheet, would like to destroy
##	##
Line 785 sub expandnamed {	Line 790 sub expandnamed {
my @vars=split(/\W+/,$formula);	my @vars=split(/\W+/,$formula);
my %values=();	my %values=();
foreach my $varname ( @vars ) {	foreach my $varname ( @vars ) {
if ($varname=~/\D/) {	if ($varname=~/^(parameter\|stores\|timestamp)/) {
$formula=~s/$varname/'$c{\''.$varname.'\'}'/ge;	$formula=~s/$varname/'$c{\''.$varname.'\'}'/ge;
$varname=~s/$var/$[\\w:\\- ]\+$/g;	$varname=~s/$var/$[\\w:\\- ]\+$/g;
foreach (keys(%{$self->{'constants'}})) {	foreach (keys(%{$self->{'constants'}})) {
if ($_=~/$varname/) {	if ($_=~/$varname/) {
Line 803 sub expandnamed {	Line 808 sub expandnamed {
$result.=$thissum.'+';	$result.=$thissum.'+';
}	}
$result=~s/\+$//;	$result=~s/\+$//;
return $result;	return '('.$result.')';
} else {	} else {
return 0;	return 0;
}	}
Line 818 sub expandnamed {	Line 823 sub expandnamed {
my @matches = ();	my @matches = ();
my @values = ();	my @values = ();
$#matches = -1;	$#matches = -1;
study $expression;
while (my($parameter,$value) = each(%{$self->{'constants'}})) {	while (my($parameter,$value) = each(%{$self->{'constants'}})) {
next if ($parameter !~ /$expression/);	next if ($parameter !~ /$expression/);
push(@matches,$parameter);	push(@matches,$parameter);
Line 850 sub expandnamed {	Line 854 sub expandnamed {
sub sett {	sub sett {
my $self = shift;	my $self = shift;
my %t=();	my %t=();
	undef(%Apache::Spreadsheet::sheet_values);
#	#
# Deal with the template row	# Deal with the template row
foreach my $col ($self->template_cells()) {	foreach my $col ($self->template_cells()) {
Line 880 sub sett {	Line 885 sub sett {
$t{$cell}=~s/(^\|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;	$t{$cell}=~s/(^\|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;
$t{$cell}=~s/(^\|[^\"\'])\[([^\]]+)\]/$1.$self->expandnamed($2)/ge;	$t{$cell}=~s/(^\|[^\"\'])\[([^\]]+)\]/$1.$self->expandnamed($2)/ge;
} elsif ( $col =~ /^[A-Z]$/ ) {	} elsif ( $col =~ /^[A-Z]$/ ) {
if ($formula !~ /^\!/ && exists($self->{'constants'}->{$cell})) {	if ($formula !~ /^\!/ && exists($self->{'constants'}->{$cell})
my $data = $self->{'constants'}->{$cell};	&& $self->{'constants'}->{$cell} ne '') {
$t{$cell} = $data;	$Apache::Spreadsheet::sheet_values{$cell}=
	eval($self->{'constants'}->{$cell});
}	}
} else { # $row > 1 and $col =~ /[a-z]	} else { # $row > 1 and $col =~ /[a-z]
$t{$cell}=$formula;	$t{$cell}=$formula;
Line 901 sub sett {	Line 907 sub sett {
sub sync_safe_space {	sub sync_safe_space {
my $self = shift;	my $self = shift;
# Inside the safe space 'formulas' has a diabolical alter-ego named 'f'.	# Inside the safe space 'formulas' has a diabolical alter-ego named 'f'.
%{$self->{'safe'}->varglob('f')}=%{$self->{'formulas'}};	#%{$self->{'safe'}->varglob('f')}=%{$self->{'formulas'}};
# 'constants' leads a peaceful hidden life of 'c'.	# 'constants' leads a peaceful hidden life of 'c'.
%{$self->{'safe'}->varglob('c')}=%{$self->{'constants'}};	%{$self->{'safe'}->varglob('c')}=%{$self->{'constants'}};
# 'othersheets' hides as 'os', a disguise few can penetrate.	# 'othersheets' hides as 'os', a disguise few can penetrate.
@{$self->{'safe'}->varglob('os')}=@{$self->{'othersheets'}};	#@{$self->{'safe'}->varglob('os')}=@{$self->{'othersheets'}};
}	}

##	##
Line 958 sub formulas {	Line 964 sub formulas {
$self->{'formulas'} = $formulas;	$self->{'formulas'} = $formulas;
$self->{'rows'} = [];	$self->{'rows'} = [];
$self->{'template_cells'} = [];	$self->{'template_cells'} = [];
	$self->{'loaded'} = 1;
return;	return;
} else {	} else {
	$self->check_formulas_loaded();
return %{$self->{'formulas'}};	return %{$self->{'formulas'}};
}	}
}	}

	sub check_formulas_loaded {
	my $self=shift;
	if (!$self->{'loaded'}) {
	$self->{'loaded'}=1;
	# Load in the spreadsheet definition
	if (exists($env{'form.workcopy'}) &&
	$self->{'type'} eq $env{'form.workcopy'}) {
	$self->load_tmp();
	} else {
	$self->load();
	}
	}
	}

sub set_formula {	sub set_formula {
my $self = shift;	my $self = shift;
my ($cell,$formula) = @_;	my ($cell,$formula) = @_;
	$self->check_formulas_loaded();
$self->{'formulas'}->{$cell}=$formula;	$self->{'formulas'}->{$cell}=$formula;
return;	return;
}	}
Line 976 sub set_formula {	Line 999 sub set_formula {
##	##
sub formulas_keys {	sub formulas_keys {
my $self = shift;	my $self = shift;
my @keys = keys(%{$self->{'formulas'}});	$self->check_formulas_loaded();
return keys(%{$self->{'formulas'}});	return keys(%{$self->{'formulas'}});
}	}

Line 987 sub formulas_keys {	Line 1010 sub formulas_keys {
sub formula {	sub formula {
my $self = shift;	my $self = shift;
my $cell = shift;	my $cell = shift;
	$self->check_formulas_loaded();
if (defined($cell) && exists($self->{'formulas'}->{$cell})) {	if (defined($cell) && exists($self->{'formulas'}->{$cell})) {
return $self->{'formulas'}->{$cell};	return $self->{'formulas'}->{$cell};
}	}
Line 1065 sub rebuild_stats {	Line 1089 sub rebuild_stats {
my $self = shift;	my $self = shift;
$self->{'rows'}=[];	$self->{'rows'}=[];
$self->{'template_cells'}=[];	$self->{'template_cells'}=[];
	$self->check_formulas_loaded();
while (my ($cell,$formula) = each(%{$self->{'formulas'}})) {	while (my ($cell,$formula) = each(%{$self->{'formulas'}})) {
push(@{$self->{'rows'}},$1) if ($cell =~ /^A(\d+)/ && $1 != 0);	push(@{$self->{'rows'}},$1) if ($cell =~ /^A(\d+)/ && $1 != 0);
push(@{$self->{'template_cells'}},$1) if ($cell =~ /^template_(\w+)/);	push(@{$self->{'template_cells'}},$1) if ($cell =~ /^template_(\w+)/);
Line 1112 sub calcsheet {	Line 1137 sub calcsheet {
# $self->logthis($self->get_errorlog());	# $self->logthis($self->get_errorlog());
%{$self->{'values'}} = %{$self->{'safe'}->varglob('sheet_values')};	%{$self->{'values'}} = %{$self->{'safe'}->varglob('sheet_values')};
# $self->logthis($self->get_errorlog());	# $self->logthis($self->get_errorlog());
	if ($result ne 'okay') {
	$self->set_calcerror($result);
	}
return $result;	return $result;
}	}

	sub set_badcalc {
	my $self = shift();
	$self->{'badcalc'} =1;
	return;
	}

	sub badcalc {
	my $self = shift;
	if (exists($self->{'badcalc'}) && $self->{'badcalc'}) {
	return 1;
	} else {
	return 0;
	}
	}

	sub set_calcerror {
	my $self = shift;
	if (@_) {
	$self->set_badcalc();
	if (exists($self->{'calcerror'})) {
	$self->{'calcerror'}.="\n".$_[0];
	} else {
	$self->{'calcerror'}.=$_[0];
	}
	}
	}

	sub calcerror {
	my $self = shift;
	if ($self->badcalc()) {
	if (exists($self->{'calcerror'})) {
	return $self->{'calcerror'};
	}
	}
	return;
	}

###########################################################	###########################################################
##	##
## Output Helpers	## Output Helpers
Line 1123 sub calcsheet {	Line 1188 sub calcsheet {
sub display {	sub display {
my $self = shift;	my $self = shift;
my ($r) = @_;	my ($r) = @_;
$self->compute($r);
my $outputmode = 'html';	my $outputmode = 'html';
if ($ENV{'form.output_format'} =~ /^(html\|excel\|csv)$/) {	foreach ($self->output_options()) {
$outputmode = $ENV{'form.output_format'};	if ($env{'form.output_format'} eq $_->{'value'}) {
	$outputmode = $_->{'value'};
	last;
	}
}	}
	$self->{outputmode} = $outputmode;
if ($outputmode eq 'html') {	if ($outputmode eq 'html') {
	$self->compute($r);
	$self->outsheet_html($r);
	} elsif ($outputmode eq 'htmlclasslist') {
	# No computation neccessary... This is kludgy
	$self->outsheet_htmlclasslist($r);
	} elsif ($outputmode eq 'source') {
	# No computation necessary. Rumor has it that this is some
	# sort of kludge w.r.t. not "computing". It's also
	# a bit of of a kludge that we call "outsheet_html" and
	# let the 'outputmode' cause the outputting of source.
$self->outsheet_html($r);	$self->outsheet_html($r);
} elsif ($outputmode eq 'excel') {	} elsif ($outputmode eq 'excel') {
	$self->compute($r);
$self->outsheet_excel($r);	$self->outsheet_excel($r);
} elsif ($outputmode eq 'csv') {	} elsif ($outputmode eq 'csv') {
	$self->compute($r);
$self->outsheet_csv($r);	$self->outsheet_csv($r);
	} elsif ($outputmode eq 'xml') {
	# $self->compute($r);
	$self->outsheet_xml($r);
}	}
	$self->cleanup();
return;	return;
}	}

############################################	############################################
## HTML output routines ##	## HTML output routines ##
############################################	############################################
	sub html_report_error {
	my $self = shift();
	my $Str = '';
	if ($self->badcalc()) {
	$Str = '<h3 style="color:red">'.
	&mt('An error occurred while calculating this spreadsheet').
	"</h3>\n".
	'<pre>'.$self->calcerror()."</pre>\n";
	}
	return $Str;
	}

sub html_export_row {	sub html_export_row {
my $self = shift();	my $self = shift();
my $allowed = &Apache::lonnet::allowed('mgr',$ENV{'request.course.id'});	my ($color) = @_;
	$color = '#CCCCFF' if (! defined($color));
	my $allowed = &Apache::lonnet::allowed('mgr',$env{'request.course.id'});
my $row_html;	my $row_html;
my @rowdata = $self->get_row(0);	my @rowdata = $self->get_row(0);
foreach my $cell (@rowdata) {	foreach my $cell (@rowdata) {
if ($cell->{'name'} =~ /^[A-Z]/) {	if ($cell->{'name'} =~ /^[A-Z]/) {
$row_html .= '<td bgcolor="#CCCCFF">'.	$row_html .= '<td bgcolor="'.$color.'">'.
&html_editable_cell($cell,'#CCCCFF',$allowed).'</td>';	&html_editable_cell($cell,$color,$allowed,
	$self->{outputmode} eq 'source').'</td>';
} else {	} else {
$row_html .= '<td bgcolor="#DDCCFF">'.	$row_html .= '<td bgcolor="#DDCCFF">'.
&html_editable_cell($cell,'#DDCCFF',$allowed).'</td>';	&html_editable_cell($cell,'#DDCCFF',$allowed,
	$self->{outputmode} eq 'source').'</td>';
}	}
}	}
return $row_html;	return $row_html;
Line 1160 sub html_export_row {	Line 1260 sub html_export_row {

sub html_template_row {	sub html_template_row {
my $self = shift();	my $self = shift();
my $allowed = &Apache::lonnet::allowed('mgr',$ENV{'request.course.id'});	my $allowed = &Apache::lonnet::allowed('mgr',$env{'request.course.id'});
my ($num_uneditable) = @_;	my ($num_uneditable,$importcolor) = @_;
my $row_html;	my $row_html;
my @rowdata = $self->get_template_row();	my @rowdata = $self->get_template_row();
my $count = 0;	my $count = 0;
for (my $i = 0; $i<=$#rowdata; $i++) {	for (my $i = 0; $i<=$#rowdata; $i++) {
my $cell = $rowdata[$i];	my $cell = $rowdata[$i];
if ($i < $num_uneditable) {	if ($i < $num_uneditable) {
$row_html .= '<td bgcolor="#FFDDDD">'.	$row_html .= '<td bgcolor="'.$importcolor.'">'.
&html_uneditable_cell($cell,'#FFDDDD',$allowed).'</td>';	&html_uneditable_cell($cell,'#FFDDDD',$allowed).'</td>';
} else {	} else {
$row_html .= '<td bgcolor="#EOFFDD">'.	$row_html .= '<td bgcolor="#EOFFDD">'.
&html_editable_cell($cell,'#EOFFDD',$allowed).'</td>';	&html_editable_cell($cell,'#EOFFDD',$allowed,
	$self->{outputmode} eq 'source').'</td>';
}	}
}	}
return $row_html;	return $row_html;
}	}

sub html_editable_cell {	sub html_editable_cell {
my ($cell,$bgcolor,$allowed) = @_;	my ($cell,$bgcolor,$allowed,$showsource) = @_;
my $result;	my $result;
my ($name,$formula,$value);	my ($name,$formula,$value);
if (defined($cell)) {	if (defined($cell)) {
Line 1189 sub html_editable_cell {	Line 1290 sub html_editable_cell {
}	}
$name = '' if (! defined($name));	$name = '' if (! defined($name));
$formula = '' if (! defined($formula));	$formula = '' if (! defined($formula));
if (! defined($value)) {	if ($showsource)
	{
	if (!defined($formula) \|\| $formula =~ /^\s*$/) {
	$value = '<font color="'.$bgcolor.'">#</font>';
	} else {
	$value = &HTML::Entities::encode($formula, '<>&"');
	}
	}
	elsif (! defined($value)) {
$value = '<font color="'.$bgcolor.'">#</font>';	$value = '<font color="'.$bgcolor.'">#</font>';
if ($formula ne '') {	if ($formula ne '') {
$value = '<i>undefined value</i>';	$value = '<i>undefined value</i>';
Line 1197 sub html_editable_cell {	Line 1306 sub html_editable_cell {
} elsif ($value =~ /^\s*$/ ) {	} elsif ($value =~ /^\s*$/ ) {
$value = '<font color="'.$bgcolor.'">#</font>';	$value = '<font color="'.$bgcolor.'">#</font>';
} else {	} else {
$value = &HTML::Entities::encode($value) if ($value !~/ /);	$value = &HTML::Entities::encode($value,'<>&"') if ($value !~/ /);
}	}
return $value if (! $allowed);	return $value if (! $allowed);
# Make the formula safe for outputting	#
$formula =~ s/\'/\"/g;
# The formula will be parsed by the browser twice before being	# The formula will be parsed by the browser twice before being
# displayed to the user for editing.	# displayed to the user for editing.
$formula = &HTML::Entities::encode(&HTML::Entities::encode($formula));	#
# Escape newlines so they make it into the edit window	# The encoding string "^A-blah" is placed in []'s inside a regexp, so
$formula =~ s/\n/\\n/gs;	# we specify the characters we want left alone by putting a '^' in front.
	$formula = &HTML::Entities::encode($formula,'^A-z0-9 !#$%-;=?~');
	# HTML::Entities::encode does not catch everything - we need '\' encoded
	$formula =~ s/\\/&\#092/g;
	# Escape it again - this time the only encodable character is '&'
	$formula =~ s/\&/\&/g;
# Glue everything together	# Glue everything together
$result .= "<a href=\"javascript:celledit(\'".	$result .= "<a href=\"javascript:celledit(\'".
$name."','".$formula."');\">".$value."</a>";	$name."','".$formula."');\">".$value."</a>";
Line 1216 sub html_editable_cell {	Line 1329 sub html_editable_cell {
sub html_uneditable_cell {	sub html_uneditable_cell {
my ($cell,$bgcolor) = @_;	my ($cell,$bgcolor) = @_;
my $value = (defined($cell) ? $cell->{'value'} : '');	my $value = (defined($cell) ? $cell->{'value'} : '');
$value = &HTML::Entities::encode($value) if ($value !~/ /);	$value = &HTML::Entities::encode($value,'<>&"') if ($value !~/ /);
return ' '.$value.' ';	return ' '.$value.' ';
}	}

sub html_row {	sub html_row {
my $self = shift();	my $self = shift();
my ($num_uneditable,$row) = @_;	my ($num_uneditable,$row,$exportcolor,$importcolor) = @_;
my $allowed = &Apache::lonnet::allowed('mgr',$ENV{'request.course.id'});	my $allowed = &Apache::lonnet::allowed('mgr',$env{'request.course.id'});
my @rowdata = $self->get_row($row);	my @rowdata = $self->get_row($row);
my $num_cols_output = 0;	my $num_cols_output = 0;
my $row_html;	my $row_html;
	my $color = $importcolor;
	if ($row == 0) {
	$color = $exportcolor;
	}
	$color = '#FFDDDD' if (! defined($color));
foreach my $cell (@rowdata) {	foreach my $cell (@rowdata) {
if ($num_cols_output++ < $num_uneditable) {	if ($num_cols_output++ < $num_uneditable) {
$row_html .= '<td bgcolor="#FFDDDD">';	$row_html .= '<td bgcolor="'.$color.'">';
$row_html .= &html_uneditable_cell($cell,'#FFDDDD');	$row_html .= &html_uneditable_cell($cell,'#FFDDDD');
} else {	} else {
$row_html .= '<td bgcolor="#EOFFDD">';	$row_html .= '<td bgcolor="#EOFFDD">';
$row_html .= &html_editable_cell($cell,'#E0FFDD',$allowed);	$row_html .= &html_editable_cell($cell,'#E0FFDD',$allowed,
	$self->{outputmode} eq 'source');
}	}
$row_html .= '</td>';	$row_html .= '</td>';
}	}
Line 1242 sub html_row {	Line 1361 sub html_row {

sub html_header {	sub html_header {
my $self = shift;	my $self = shift;
return '' if (! $ENV{'request.role.adv'});	return '' if (! $env{'request.role.adv'});
return "<table>\n".	return "<table>\n".
'<tr><th align="center">Output Format</th><tr>'."\n".	'<tr><th align="center">'.&mt('Output Format').'</th></tr>'."\n".
'<tr><td>'.&output_selector()."</td></tr>\n".	'<tr><td>'.$self->output_selector()."</td></tr>\n".
"</table>\n";	"</table>\n";
}	}

	##
	## Default output types are HTML, Excel, and CSV
	sub output_options {
	my $self = shift();
	return ({value => 'html',
	description => 'HTML'},
	{value => 'excel',
	description => 'Excel'},
	{value => 'source',
	description => 'Show Source'},
	# {value => 'xml',
	# description => 'XML'},
	{value => 'csv',
	description => 'Comma Separated Values'},);
	}

sub output_selector {	sub output_selector {
	my $self = shift();
my $output_selector = '<select name="output_format" size="3">'."\n";	my $output_selector = '<select name="output_format" size="3">'."\n";
my $default = 'html';	my $default = 'html';
if (exists($ENV{'form.output_format'})) {	if (exists($env{'form.output_format'})) {
$default = $ENV{'form.output_format'}	$default = $env{'form.output_format'}
} else {	} else {
$ENV{'form.output_format'} = $default;	$env{'form.output_format'} = $default;
}	}
foreach (['html','HTML'],	foreach ($self->output_options()) {
['excel','Excel'],	$output_selector.='<option value="'.$_->{'value'}.'"';
['csv','Comma Seperated Values']) {	if ($_->{'value'} eq $default) {
my ($name,$description) = @{$_};
$output_selector.=qq{<option value="$name"};
if ($name eq $default) {
$output_selector .= ' selected';	$output_selector .= ' selected';
}	}
$output_selector .= ">$description</option>\n";	$output_selector .= ">".&mt($_->{'description'})."</option>\n";
}	}
$output_selector .= "</select>\n";	$output_selector .= "</select>\n";
return $output_selector;	return $output_selector;
Line 1289 sub excel_output_row {	Line 1422 sub excel_output_row {
return;	return;
}	}

sub create_excel_spreadsheet {	#
	# This routine is just a stub
	sub outsheet_htmlclasslist {
my $self = shift;	my $self = shift;
my ($r) = @_;	my ($r) = @_;
my $filename = '/prtspool/'.	$r->print('<h2>'.&mt("This output is not supported").'</h2>');
$ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.	$r->rflush();
time.'_'.rand(1000000000).'.xls';	return;
my $workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
if (! defined($workbook)) {
$r->log_error("Error creating excel spreadsheet $filename: $!");
$r->print("Problems creating new Excel file. ".
"This error has been logged. ".
"Please alert your LON-CAPA administrator");
return undef;
}
#
# The excel spreadsheet stores temporary data in files, then put them
# together. If needed we should be able to disable this (memory only).
# The temporary directory must be specified before calling 'addworksheet'.
# File::Temp is used to determine the temporary directory.
$workbook->set_tempdir('/home/httpd/perl/tmp');
#
# Determine the name to give the worksheet
return ($workbook,$filename);
}	}

sub outsheet_excel {	sub outsheet_excel {
my $self = shift;	my $self = shift;
my ($r) = @_;	my ($r) = @_;
$r->print("<h2>Preparing Excel Spreadsheet</h2>");	my $connection = $r->connection();
	#
	$r->print($self->html_report_error());
	$r->rflush();
	#
	$r->print("<h2>".&mt('Preparing Excel Spreadsheet')."</h2>");
#	#
# Create excel worksheet	# Create excel workbook
my ($workbook,$filename) = $self->create_excel_spreadsheet($r);	my ($workbook,$filename,$format)=&Apache::loncommon::create_workbook($r);
return if (! defined($workbook));	return if (! defined($workbook));
#	#
# Create main worksheet	# Create main worksheet
Line 1331 sub outsheet_excel {	Line 1454 sub outsheet_excel {
# Write excel header	# Write excel header
foreach my $value ($self->get_title()) {	foreach my $value ($self->get_title()) {
$cols_output = 0;	$cols_output = 0;
$worksheet->write($rows_output++,$cols_output,$value);	$worksheet->write($rows_output++,$cols_output,$value,$format->{'h1'});
}	}
$rows_output++; # skip a line	$rows_output++; # skip a line
#	#
# Write summary/export row	# Write summary/export row
$cols_output = 0;	$cols_output = 0;
$self->excel_output_row($worksheet,0,$rows_output++,'Summary');	$self->excel_output_row($worksheet,0,$rows_output++,'Summary',
	$format->{'b'});
$rows_output++; # skip a line	$rows_output++; # skip a line
#	#
$self->excel_rows($worksheet,$cols_output,$rows_output);	$self->excel_rows($connection,$worksheet,$cols_output,$rows_output,
	$format);
#	#
#	#
# Close the excel file	# Close the excel file
Line 1358 sub outsheet_excel {	Line 1483 sub outsheet_excel {
sub outsheet_csv {	sub outsheet_csv {
my $self = shift;	my $self = shift;
my ($r) = @_;	my ($r) = @_;
	my $connection = $r->connection();
	#
	$r->print($self->html_report_error());
	$r->rflush();
	#
my $csvdata = '';	my $csvdata = '';
my @Values;	my @Values;
#	#
# Open the csv file	# Open the csv file
my $filename = '/prtspool/'.	my $filename = '/prtspool/'.
$ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.	$env{'user.name'}.'_'.$env{'user.domain'}.'_'.
time.'_'.rand(1000000000).'.csv';	time.'_'.rand(1000000000).'.csv';
my $file;	my $file;
unless ($file = Apache::File->new('>'.'/home/httpd'.$filename)) {	unless ($file = Apache::File->new('>'.'/home/httpd'.$filename)) {
$r->log_error("Couldn't open $filename for output $!");	$r->log_error("Couldn't open $filename for output $!");
$r->print("Problems occured in writing the csv file. ".	$r->print(&mt("Problems occured in writing the csv file. ".
"This error has been logged. ".	"This error has been logged. ".
"Please alert your LON-CAPA administrator.");	"Please alert your LON-CAPA administrator."));
$r->print("<pre>\n".$csvdata."</pre>\n");	$r->print("<pre>\n".$csvdata."</pre>\n");
return 0;	return 0;
}	}
Line 1381 sub outsheet_csv {	Line 1511 sub outsheet_csv {
}	}
#	#
# Output the body of the spreadsheet	# Output the body of the spreadsheet
$self->csv_rows($file);	$self->csv_rows($connection,$file);
#	#
# Close the csv file	# Close the csv file
close($file);	close($file);
$r->print('<br /><br />'.	$r->print('<br /><br />'.
'<a href="'.$filename.'">Your CSV spreadsheet.</a>'."\n");	'<a href="'.$filename.'">'.&mt('Your CSV spreadsheet.').'</a>'."\n");
#	#
return 1;	return 1;
}	}
Line 1421 sub outsheet_xml {	Line 1551 sub outsheet_xml {
## Will be rendered for the user	## Will be rendered for the user
## But not on this day	## But not on this day
my $Str = '<spreadsheet type="'.$self->{'type'}.'">'."\n";	my $Str = '<spreadsheet type="'.$self->{'type'}.'">'."\n";
	$self->check_formulas_loaded();
while (my ($cell,$formula) = each(%{$self->{'formulas'}})) {	while (my ($cell,$formula) = each(%{$self->{'formulas'}})) {
if ($cell =~ /^template_(\d+)/) {	if ($cell =~ /^template_(\w+)/) {
my $col = $1;	my $col = $1;
$Str .= '<template col="'.$col.'">'.$formula.'</template>'."\n";	$Str .= '<template col="'.$col.'">'.$formula.'</template>'."\n";
} else {	} else {
my ($row,$col) = ($cell =~ /^([A-z])(\d+)/);	my ($col,$row) = ($cell =~ /^([A-z])(\d+)/);
next if (! defined($row) \|\| ! defined($col));	next if (! defined($row) \|\| ! defined($col));
$Str .= '<field row="'.$row.'" col="'.$col.'" >'.$formula.'</cell>'	next if ($row != 0);
	$Str .=
	'<field row="'.$row.'" col="'.$col.'" >'.$formula.'</field>'
."\n";	."\n";
}	}
}	}
$Str.="</spreadsheet>";	$Str.="</spreadsheet>";
	$r->print("<pre>\n\n\n".$Str."\n\n\n</pre>");
return $Str;	return $Str;
}	}

Line 1459 sub parse_sheet {	Line 1593 sub parse_sheet {
$formulas{$cell} = $formula;	$formulas{$cell} = $formula;
$sources{$cell} = $source if (defined($source));	$sources{$cell} = $source if (defined($source));
$parser->get_text('/field');	$parser->get_text('/field');
}	} elsif ($token->[1] eq 'template') {
if ($token->[1] eq 'template') {
$formulas{'template_'.$token->[2]->{'col'}}=	$formulas{'template_'.$token->[2]->{'col'}}=
$parser->get_text('/template');	$parser->get_text('/template');
}	}
Line 1501 sub load {	Line 1634 sub load {
my $stype = $self->{'type'};	my $stype = $self->{'type'};
my $cnum = $self->{'cnum'};	my $cnum = $self->{'cnum'};
my $cdom = $self->{'cdom'};	my $cdom = $self->{'cdom'};
my $chome = $self->{'chome'};
#	#
my $filename = $self->filename();	my $filename = $self->filename();
my $cachekey = join('_',($cnum,$cdom,$stype,$filename));	my $cachekey = join('_',($cnum,$cdom,$stype,$filename));
Line 1510 sub load {	Line 1642 sub load {
my ($formulas);	my ($formulas);
if (exists($spreadsheets{$cachekey})) {	if (exists($spreadsheets{$cachekey})) {
$formulas = $spreadsheets{$cachekey}->{'formulas'};	$formulas = $spreadsheets{$cachekey}->{'formulas'};
	$self->formulas($formulas);
	$self->{'row_source'}=$spreadsheets{$cachekey}->{'row_source'};
	$self->{'row_numbers'}=$spreadsheets{$cachekey}->{'row_numbers'};
	$self->{'maxrow'}=$spreadsheets{$cachekey}->{'maxrow'};
} else {	} else {
# Not cached, need to read	# Not cached, need to read
if (! defined($filename)) {	if (! defined($filename)) {
$formulas = $self->load_system_default_sheet();	$formulas = $self->load_system_default_sheet();
} elsif($self->filename() =~ /^\/res\/.*\.spreadsheet$/) {	} elsif($filename =~ /^\/res\/.*\.spreadsheet$/) {
# Load a spreadsheet definition file	# Load a spreadsheet definition file
my $sheetxml=&Apache::lonnet::getfile	my $sheetxml=&Apache::lonnet::getfile
(&Apache::lonnet::filelocation('',$filename));	(&Apache::lonnet::filelocation('',$filename));
Line 1543 sub load {	Line 1679 sub load {
$formulas = $self->load_system_default_sheet();	$formulas = $self->load_system_default_sheet();
}	}
}	}
$filename=$self->filename(); # filename may have changed	$self->formulas($formulas);
$cachekey = join('_',($cnum,$cdom,$stype,$filename));	$self->set_row_sources();
%{$spreadsheets{$cachekey}->{'formulas'}} = %{$formulas};	$self->set_row_numbers();
	$self->cache_sheet($formulas);
}	}
$self->formulas($formulas);	}
$self->set_row_sources();
$self->set_row_numbers();	sub cache_sheet {
	my $self = shift;
	my ($formulas) = @_;
	my $stype = $self->{'type'};
	my $cnum = $self->{'cnum'};
	my $cdom = $self->{'cdom'};
	#
	my $filename = $self->filename();
	my $cachekey = join('_',($cnum,$cdom,$stype,$filename));

	if (ref($formulas) eq 'HASH') {
	%{$spreadsheets{$cachekey}->{'formulas'}} = %{$formulas};
	}
	if (ref($self->{'row_source'})) {
	%{$spreadsheets{$cachekey}->{'row_source'}} =%{$self->{'row_source'}};
	}
	if (ref($self->{'row_numbers'})) {
	%{$spreadsheets{$cachekey}->{'row_numbers'}}=%{$self->{'row_numbers'}};
	}
	$spreadsheets{$cachekey}->{'maxrow'} = $self->{'maxrow'};
}	}

sub set_row_sources {	sub set_row_sources {
my $self = shift;	my $self = shift;
	$self->check_formulas_loaded();
while (my ($cell,$value) = each(%{$self->{'formulas'}})) {	while (my ($cell,$value) = each(%{$self->{'formulas'}})) {
next if ($cell !~ /^A(\d+)/ && $1 > 0);	next if ($cell !~ /^A(\d+)/ \|\| $1 < 1);
my $row = $1;	my $row = $1;
$self->{'row_source'}->{$row} = $value;	$self->{'row_source'}->{$row} = $value;
}	}
Line 1564 sub set_row_sources {	Line 1721 sub set_row_sources {

sub set_row_numbers {	sub set_row_numbers {
my $self = shift;	my $self = shift;
	$self->check_formulas_loaded();
while (my ($cell,$value) = each(%{$self->{'formulas'}})) {	while (my ($cell,$value) = each(%{$self->{'formulas'}})) {
next if ($cell !~ /^A(\d+)$/);	next if ($cell !~ /^A(\d+)$/);
next if (! defined($value));	next if (! defined($value));
Line 1577 sub set_row_numbers {	Line 1735 sub set_row_numbers {
##	##
sub exportrow {	sub exportrow {
my $self = shift;	my $self = shift;
	if (exists($self->{'badcalc'}) && $self->{'badcalc'}) {
	return ();
	}
my @exportarray;	my @exportarray;
foreach my $column (@UC_Columns) {	foreach my $column (@UC_Columns) {
push(@exportarray,$self->value($column.'0'));	push(@exportarray,$self->value($column.'0'));
Line 1595 sub save {	Line 1756 sub save {
my $stype = $self->{'type'};	my $stype = $self->{'type'};
my $cnum = $self->{'cnum'};	my $cnum = $self->{'cnum'};
my $cdom = $self->{'cdom'};	my $cdom = $self->{'cdom'};
my $chome = $self->{'chome'};
my $filename = $self->{'filename'};	my $filename = $self->{'filename'};
my $cachekey = join('_',($cnum,$cdom,$stype,$filename));
# Cache new sheet	# Cache new sheet
%{$spreadsheets{$cachekey}->{'formulas'}}=%f;	$self->cache_sheet(\%f);
# Write sheet	# Write sheet
foreach (keys(%f)) {	foreach (keys(%f)) {
delete($f{$_}) if ($f{$_} eq 'import');	delete($f{$_}) if ($f{$_} eq 'import');
Line 1607 sub save {	Line 1766 sub save {
my $reply = &Apache::lonnet::put($filename,\%f,$cdom,$cnum);	my $reply = &Apache::lonnet::put($filename,\%f,$cdom,$cnum);
return $reply if ($reply ne 'ok');	return $reply if ($reply ne 'ok');
$reply = &Apache::lonnet::put($stype.'_spreadsheets',	$reply = &Apache::lonnet::put($stype.'_spreadsheets',
{$filename => $ENV{'user.name'}.'@'.$ENV{'user.domain'}},	{$filename => $env{'user.name'}.'@'.$env{'user.domain'}},
$cdom,$cnum);	$cdom,$cnum);
return $reply if ($reply ne 'ok');	return $reply if ($reply ne 'ok');
if ($makedef) {	if ($makedef) {
Line 1615 sub save {	Line 1774 sub save {
{'spreadsheet_default_'.$stype => $filename },	{'spreadsheet_default_'.$stype => $filename },
$cdom,$cnum);	$cdom,$cnum);
return $reply if ($reply ne 'ok');	return $reply if ($reply ne 'ok');
	&Apache::lonnet::appenv('course.'.$self->{'cid'}.'.spreadsheet_default_'.
	$self->{'type'} => $self->filename());
}	}
if ($self->is_default()) {	if ($self->is_default()) {
&Apache::lonnet::expirespread('','',$self->{'type'},'');	if ($self->{'type'} eq 'studentcalc') {
	&Apache::lonnet::expirespread('','','studentcalc','');
	} elsif ($self->{'type'} eq 'assesscalc') {
	&Apache::lonnet::expirespread('','','assesscalc','');
	&Apache::lonnet::expirespread('','','studentcalc','');
	}
}	}
return $reply;	return $reply;
}	}
Line 1628 sub save {	Line 1794 sub save {

sub save_tmp {	sub save_tmp {
my $self = shift;	my $self = shift;
my $filename=$ENV{'user.name'}.'_'.	my $filename=$env{'user.name'}.'_'.
$ENV{'user.domain'}.'_spreadsheet_'.$self->{'usymb'}.'_'.	$env{'user.domain'}.'_spreadsheet_'.$self->{'symb'}.'_'.
$self->{'filename'};	$self->{'filename'};
$filename=~s/\W/\_/g;	$filename=~s/\W/\_/g;
$filename=$Apache::lonnet::tmpdir.$filename.'.tmp';	$filename=$Apache::lonnet::tmpdir.$filename.'.tmp';
Line 1648 sub save_tmp {	Line 1814 sub save_tmp {

sub load_tmp {	sub load_tmp {
my $self = shift;	my $self = shift;
my $filename=$ENV{'user.name'}.'_'.	my $filename=$env{'user.name'}.'_'.
$ENV{'user.domain'}.'_spreadsheet_'.$self->{'usymb'}.'_'.	$env{'user.domain'}.'_spreadsheet_'.$self->{'symb'}.'_'.
$self->{'filename'};	$self->{'filename'};
$filename=~s/\W/\_/g;	$filename=~s/\W/\_/g;
$filename=$Apache::lonnet::tmpdir.$filename.'.tmp';	$filename=$Apache::lonnet::tmpdir.$filename.'.tmp';
Line 1707 sub othersheets {	Line 1873 sub othersheets {
$self->{'cdom'}, $self->{'cnum'});	$self->{'cdom'}, $self->{'cnum'});
my ($tmp) = keys(%results);	my ($tmp) = keys(%results);
if ($tmp =~ /^(con_lost\|error\|no_such_host)/i ) {	if ($tmp =~ /^(con_lost\|error\|no_such_host)/i ) {
@alternatives = ('Default');	@alternatives = (&mt('Default'));
} else {	} else {
@alternatives = ('Default', sort (keys(%results)));	@alternatives = (&mt('Default'), sort (keys(%results)));
}	}
return @alternatives;	return @alternatives;
}	}

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>

Removed from v.1.15
changed lines
	Added in v.1.64