loncom/interface/spreadsheet/Spreadsheet.pm - diff

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Diff for /loncom/interface/spreadsheet/Spreadsheet.pm between versions 1.40 and 1.45

version 1.40, 2005/03/10 17:33:57	version 1.45, 2005/05/13 15:59:07
Line 90 sub new {	Line 90 sub new {
$usymb = $usymb->symb;	$usymb = $usymb->symb;
}	}
if (! defined($name) \|\| $name eq '') {	if (! defined($name) \|\| $name eq '') {
$name = $ENV{'user.name'};	$name = $env{'user.name'};
}	}
if (! defined($domain) \|\| $domain eq '') {	if (! defined($domain) \|\| $domain eq '') {
$domain = $ENV{'user.domain'};	$domain = $env{'user.domain'};
}	}
#	#
my $self = {	my $self = {
Line 103 sub new {	Line 103 sub new {
symb => $usymb,	symb => $usymb,
errorlog => '',	errorlog => '',
maxrow => 0,	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'},	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
Line 132 sub new {	Line 132 sub new {
#	#
# Load in the spreadsheet definition	# Load in the spreadsheet definition
$self->filename($filename);	$self->filename($filename);
if (exists($ENV{'form.workcopy'}) &&	if (exists($env{'form.workcopy'}) &&
$self->{'type'} eq $ENV{'form.workcopy'}) {	$self->{'type'} eq $env{'form.workcopy'}) {
$self->load_tmp();	$self->load_tmp();
} else {	} else {
$self->load();	$self->load();
Line 160 sub filename {	Line 160 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 259 sub initialize_spreadsheet_package {	Line 259 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 318 sub initialize_safe_space {	Line 318 sub initialize_safe_space {
my $self = shift;	my $self = shift;
my $usection = &Apache::lonnet::getsection($self->{'domain'},	my $usection = &Apache::lonnet::getsection($self->{'domain'},
$self->{'name'},	$self->{'name'},
$ENV{'request.course.id'});	$env{'request.course.id'});
if (! defined($safeeval)) {	if (! defined($safeeval)) {
$safeeval = new Safe(shift);	$safeeval = new Safe(shift);
my $safehole = new Safe::Hole;	my $safehole = new Safe::Hole;
Line 328 sub initialize_safe_space {	Line 328 sub initialize_safe_space {
$safeeval->deny(":base_io");	$safeeval->deny(":base_io");
$safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&Apache::lonnet::EXT');	$safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&Apache::lonnet::EXT');
$safehole->wrap(\&mask,$safeeval,'&mask');	$safehole->wrap(\&mask,$safeeval,'&mask');
	$safehole->wrap(\&Apache::lonnet::logthis,$safeeval,'&logthis');
$safeeval->share('$@');	$safeeval->share('$@');
my $code=<<'ENDDEFS';	my $code=<<'ENDDEFS';
# ---------------------------------------------------- Inside of the safe space	# ---------------------------------------------------- Inside of the safe space
Line 412 returns the number of items in the range	Line 413 returns the number of items in the range

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

Line 428 sub NUM {	Line 429 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 $num=0;
foreach (grep eval("/$mask/"),keys(%sheet_values)) {	foreach (@$values) {
if (($sheet_values{$_}>=$low) && ($sheet_values{$_}<=$high)) {	if (($_>=$low) && ($_<=$high)) {
$num++;	$num++;
}	}
}	}
Line 450 returns the sum of items in the range.	Line 451 returns the sum of items in the range.

#-------------------------------------------------------	#-------------------------------------------------------
sub SUM {	sub SUM {
my $mask=&mask(@_);	my $values=&get_values(@_);
my $sum=0;	my $sum=0;
foreach (grep eval("/$mask/"),keys(%sheet_values)) {	foreach (@$values) {
$sum+=$sheet_values{$_};	$sum+=$_;
}	}
return $sum;	return $sum;
}	}
Line 470 compute the average of the items in the	Line 471 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 $num=0;
foreach (grep eval("/$mask/"),keys(%sheet_values)) {	foreach (@$values) {
$sum+=$sheet_values{$_};	$sum+=$_;
$num++;	$num++;
}	}
if ($num) {	if ($num) {
Line 496 compute the standard deviation of the it	Line 497 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 $num=0;
foreach (grep eval("/$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;	$sum=0;
foreach (grep eval("/$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 523 compute the product of the items in the	Line 524 compute the product of the items in the

#-------------------------------------------------------	#-------------------------------------------------------
sub PROD {	sub PROD {
my $mask=&mask(@_);	my $values=&get_values(@_);
my $prod=1;	my $prod=1;
foreach (grep eval("/$mask/"),keys(%sheet_values)) {	foreach (@$values) {
$prod*=$sheet_values{$_};	$prod*=$_;
}	}
return $prod;	return $prod;
}	}
Line 543 compute the maximum of the items in the	Line 544 compute the maximum of the items in the

#-------------------------------------------------------	#-------------------------------------------------------
sub MAX {	sub MAX {
my $mask=&mask(@_);	my $values=&get_values(@_);
my $max='-';	my $max='-';
foreach (grep eval("/$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 566 compute the minimum of the items in the	Line 566 compute the minimum of the items in the

#-------------------------------------------------------	#-------------------------------------------------------
sub MIN {	sub MIN {
my $mask=&mask(@_);	my $values=&get_values(@_);
my $min='-';	my $min='-';
foreach (grep eval("/$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 $min;
Line 591 compute the sum of the largest 'num' ite	Line 590 compute the sum of the largest 'num' ite
#-------------------------------------------------------	#-------------------------------------------------------
sub SUMMAX {	sub SUMMAX {
my ($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 eval("/$mask/"),keys(%sheet_values)) {
push (@inside,$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[$i];
Line 618 compute the sum of the smallest 'num' it	Line 613 compute the sum of the smallest 'num' it
#-------------------------------------------------------	#-------------------------------------------------------
sub SUMMIN {	sub SUMMIN {
my ($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 eval("/$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 679 sub MAXPARM {	Line 670 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 {
	$num = '(\d+)';
	}
	if (($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;	%sheet_values = %t;
Line 742 ENDDEFS	Line 790 ENDDEFS

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


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

=pod

=item &mask($lower,$upper)

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

Returns: Regular expression matching spreadsheet cells that are within
the rectangle defined by $lower and $upper. Due to the nature of the
regular expression this result must be used inside an eval().

=cut

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

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-z]\|\)(\d+\|\)/);
my ($ua,$ud) = ($upper=~/([A-z]\|\)(\d+\|\)/);
#
my $alpha='';
my $num='';
#
# Do not put parenthases around $alpha.
# $num depends on the value in $1.
if (($la eq '') \|\| ($ua eq '')) {
$alpha='[A-z]';
} else {
if ($la gt $ua) {
my $tmp = $ua;
$ua = $la;
$la = $ua;
}
$alpha=qq/[$la-$ua]/;
}
if ($ld ne '' && $ud ne '') {
# Make sure $ld <= $ud
if ($ld > $ud) {
my $tmp = $ud;
$ud = $ld;
$ld = $tmp;
}
# Here we make a regular expression using some advanced regexp
# abilities.
# (\d+) will match the digits of the cell name and dump them in
# to $1
# (?(?{ ... code ...} pattern_if_true \| pattern_if_false)) will
# choose pattern_if_true if { ... code ... } is true and
# pattern_if_false if { ... code ... } is false.
# In this case, pattern_if_true is empty. pattern_if_false is
# 'donotmatch' and will not match our cells because none of
# them end with donotmatch.
# Unfortunately, the use of this type of regular expression
# requires that each match be wrapped in an eval(). Search for
# $mask in this module for examples
$num = '(\d+)(?(?{$1>= '.$ld.' && $1<='.$ud.'})\|donotmatch)';
} else {
$num = '(\d+)';
}
my $expression = '^'.$alpha.$num.'$';
$memoizer{$key} = $expression;
return $expression;
}

#
# Debugging routine
sub dump_memoized_values {
while (my ($key,$value) = each(%memoizer)) {
&Apache::lonnet::logthis('memoizer: '.$key.' = '.$value);
}
return;
}

}

##	##
## sub add_hash_to_safe {} # spreadsheet, would like to destroy	## sub add_hash_to_safe {} # spreadsheet, would like to destroy
##	##
Line 937 sub sett {	Line 899 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})
	&& $self->{'constants'}->{$cell} ne '') {
my $data = $self->{'constants'}->{$cell};	my $data = $self->{'constants'}->{$cell};
$t{$cell} = $data;	$t{$cell} = $data;
}	}
Line 1222 sub display {	Line 1185 sub display {
my ($r) = @_;	my ($r) = @_;
my $outputmode = 'html';	my $outputmode = 'html';
foreach ($self->output_options()) {	foreach ($self->output_options()) {
if ($ENV{'form.output_format'} eq $_->{'value'}) {	if ($env{'form.output_format'} eq $_->{'value'}) {
$outputmode = $_->{'value'};	$outputmode = $_->{'value'};
last;	last;
}	}
Line 1266 sub html_export_row {	Line 1229 sub html_export_row {
my $self = shift();	my $self = shift();
my ($color) = @_;	my ($color) = @_;
$color = '#CCCCFF' if (! defined($color));	$color = '#CCCCFF' if (! defined($color));
my $allowed = &Apache::lonnet::allowed('mgr',$ENV{'request.course.id'});	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) {
Line 1283 sub html_export_row {	Line 1246 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 ($num_uneditable,$importcolor) = @_;	my ($num_uneditable,$importcolor) = @_;
my $row_html;	my $row_html;
my @rowdata = $self->get_template_row();	my @rowdata = $self->get_template_row();
Line 1350 sub html_uneditable_cell {	Line 1313 sub html_uneditable_cell {
sub html_row {	sub html_row {
my $self = shift();	my $self = shift();
my ($num_uneditable,$row,$exportcolor,$importcolor) = @_;	my ($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;
Line 1374 sub html_row {	Line 1337 sub html_row {

sub html_header {	sub html_header {
my $self = shift;	my $self = shift;
return '' if (! $ENV{'request.role.adv'});	return '' if (! $env{'request.role.adv'});
return "<table>\n".	return "<table>\n".
'<tr><th align="center">'.&mt('Output Format').'</th></tr>'."\n".	'<tr><th align="center">'.&mt('Output Format').'</th></tr>'."\n".
'<tr><td>'.$self->output_selector()."</td></tr>\n".	'<tr><td>'.$self->output_selector()."</td></tr>\n".
Line 1399 sub output_selector {	Line 1362 sub output_selector {
my $self = shift();	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'} = $default;
}	}
foreach ($self->output_options()) {	foreach ($self->output_options()) {
$output_selector.='<option value="'.$_->{'value'}.'"';	$output_selector.='<option value="'.$_->{'value'}.'"';
Line 1504 sub outsheet_csv {	Line 1467 sub outsheet_csv {
#	#
# 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)) {
Line 1753 sub save {	Line 1716 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 1779 sub save {	Line 1742 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->{'symb'}.'_'.	$env{'user.domain'}.'_spreadsheet_'.$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 1799 sub save_tmp {	Line 1762 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->{'symb'}.'_'.	$env{'user.domain'}.'_spreadsheet_'.$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';

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Removed from v.1.40
changed lines
	Added in v.1.45