version 1.1, 2001/12/17 21:43:12
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version 1.5, 2001/12/18 22:29:42
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# |
# |
# http://www.lon-capa.org/ |
# http://www.lon-capa.org/ |
# |
# |
# 2/21 Guy |
# 12/15/01 Matthew |
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# 12/18 Matthew |
package Apache::lonplot; |
package Apache::lonplot; |
use strict; |
use strict; |
use Apache::response; |
use Apache::response; |
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use Apache::lonxml; |
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use Digest::MD5 qw(md5 md5_hex md5_base64); |
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sub BEGIN { |
sub BEGIN { |
&Apache::lonxml::register('Apache::lonplot',('plot')); |
&Apache::lonxml::register('Apache::lonplot',('plot')); |
Line 45 my $onoff_test = sub {$_[0]=~/^(on|o
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Line 48 my $onoff_test = sub {$_[0]=~/^(on|o
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my $key_pos_test = sub {$_[0]=~/^(top|bottom|right|left|outside|below)+$/}; |
my $key_pos_test = sub {$_[0]=~/^(top|bottom|right|left|outside|below)+$/}; |
my $sml_test = sub {$_[0]=~/^(small|medium|large)$/}; |
my $sml_test = sub {$_[0]=~/^(small|medium|large)$/}; |
my $linestyle_test = sub {$_[0]=~/^(lines|linespoints|dots|points|steps)$/}; |
my $linestyle_test = sub {$_[0]=~/^(lines|linespoints|dots|points|steps)$/}; |
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my $words_test = sub {$_[0]=~/^((\w+\b*)+$/}; |
## |
## |
## Default values for attributes of elements |
## Default values for attributes of elements |
## |
## |
Line 53 my %plot_defaults =
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Line 56 my %plot_defaults =
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( |
( |
height => {default => 200, test => $int_test }, |
height => {default => 200, test => $int_test }, |
width => {default => 200, test => $int_test }, |
width => {default => 200, test => $int_test }, |
bgcolor => {default => "xffffff", test => $color_test}, |
bgcolor => {default => 'xffffff', test => $color_test}, |
fgcolor => {default => "x000000", test => $color_test}, |
fgcolor => {default => 'x000000', test => $color_test}, |
transparent => {default => "off", test => $onoff_test}, |
transparent => {default => 'off', test => $onoff_test}, |
grid => {default => "off", test => $onoff_test}, |
grid => {default => 'off', test => $onoff_test}, |
border => {default => "on" , test => $onoff_test}, |
border => {default => 'on', test => $onoff_test}, |
font => {default => "medium", test => $sml_test } |
font => {default => 'medium', test => $sml_test } |
); |
); |
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my %key_defaults = |
my %key_defaults = |
( |
( |
title => { default => "on" , test => $onoff_test }, |
title => { default => '', test => $words_test }, |
box => { default => "off" , test => $onoff_test }, |
box => { default => 'off', test => $onoff_test }, |
pos => { default => "top right" , test => $key_pos_test} |
pos => { default => 'top right', test => $key_pos_test} |
); |
); |
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my %label_defaults = |
my %label_defaults = |
( |
( |
xpos => {default => 0, test => $real_test }, |
xpos => {default => 0, test => $real_test }, |
ypos => {default => 0, test => $real_test }, |
ypos => {default => 0, test => $real_test }, |
color => {default => "x000000", test => $color_test }, |
color => {default => 'x000000', test => $color_test }, |
justify => {default => "left", |
justify => {default => 'left', |
test => sub {$_[0]=~/^(left|right|center)$/}} |
test => sub {$_[0]=~/^(left|right|center)$/}} |
); |
); |
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my %axis_defaults = |
my %axis_defaults = |
( |
( |
color => {default => "x000000", test => $color_test}, |
color => {default => 'x000000', test => $color_test}, |
thickness => {default => 1, test => $int_test }, |
thickness => {default => 1, test => $int_test }, |
xmin => {default => -10.0, test => $real_test }, |
xmin => {default => -10.0, test => $real_test }, |
xmax => {default => 10.0, test => $real_test }, |
xmax => {default => 10.0, test => $real_test }, |
Line 89 my %axis_defaults =
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Line 92 my %axis_defaults =
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my %curve_defaults = |
my %curve_defaults = |
( |
( |
color => {default => "x000000", test => $color_test }, |
color => {default => 'x000000', test => $color_test }, |
name => {default => "x000000", test => sub {$_[0]=~/^[\w ]*$/} }, |
name => {default => 'x000000', test => sub {$_[0]=~/^[\w ]*$/} }, |
linestyle => {default => "lines", test => $linestyle_test } |
linestyle => {default => 'lines', test => $linestyle_test } |
); |
); |
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## |
## |
Line 103 sub start_plot {
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Line 106 sub start_plot {
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%plot = ''; %key=''; %axis=''; |
%plot = ''; %key=''; %axis=''; |
$title=''; $xlabel=''; $ylabel=''; |
$title=''; $xlabel=''; $ylabel=''; |
@labels = ''; @curves=''; |
@labels = ''; @curves=''; |
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my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my $result=''; |
my $result=''; |
# |
|
&Apache::lonxml::register('Apache::plot', |
&Apache::lonxml::register('Apache::plot', |
('title','xlabel','ylabel','key','axis','label','curve')); |
('title','xlabel','ylabel','key','axis','label','curve')); |
push (@Apache::lonxml::namespace,'plot'); |
push (@Apache::lonxml::namespace,'plot'); |
&get_attributes(\%plot,\%plot_defaults,$parstack,$safeeval); |
## Always evaluate the insides of the <plot></plot> tags |
return ''; |
my $inside = &Apache::lonxml::get_all_text("/plot",$$parser[-1]); |
} |
$inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]); |
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&Apache::lonxml::newparser($parser,\$inside); |
sub get_attributes{ |
##------------------------------------------------------- |
%values = %{$_[0]}; |
&get_attributes(\%plot,\%plot_defaults,$parstack,$safeeval,'plot'); |
%defaults = %{$_[1]}; |
if ($target eq 'web') { |
$parstack = $_[2]; |
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$safeeval = $_[3]; |
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my $attr; |
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foreach $attr (keys %defaults) { |
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$values{$attr} = &Apache::lonxml::get_param($attr,$parstack,$safeeval); |
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my $test = $defaults{$attr}->{'test'}; |
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$values{$attr} = (&$test($values{$attr}) ? |
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$values{$attr} : |
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$defaults{$attr} ); |
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} |
} |
return ; |
return ''; |
} |
} |
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sub end_plot { |
sub end_plot { |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
pop @Apache::lonxml::namespace; |
pop @Apache::lonxml::namespace; |
my $result; |
&Apache::lonxml::deregister('Apache::lonplot', |
## Determine filename |
('title','xlabel','ylabel','key','axis','label','curve')); |
my $filename = |
my $result = ''; |
## Write the plot description to the file |
if ($target eq 'web') { |
## return image tag for the plot |
## Determine filename -- may need a better way later |
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my $tmpdir = '/home/httpd/perl/tmp/'; |
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my $filename = $tmpdir.$ENV{'user.name'}.'_'.$ENV{'user.domain'}. |
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'_plot.data'; |
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my $usersees=md5_base64($filename.'_'.$ENV{'REMOTE_ADDR'}); |
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## Write the plot description to the file |
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my $fh=&Apache::File->new('/home/httpd/perl/tmp/'.$realname); |
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# write plot values |
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# write title, xlabel, ylabel |
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# write key values |
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# write axis values |
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# write label values |
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# write curve values |
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## Ack! |
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## return image tag for the plot |
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$result = '<img src=\"/cgi-bin/plot.cgi?'.$usersees.'"'; |
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} |
return $result; |
return $result; |
} |
} |
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##----------------------------------------------------------------- key |
##----------------------------------------------------------------- key |
sub start_key { |
sub start_key { |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my $result=''; |
my $result=''; |
&get_attributes(\%key,\%key_defaults,$parstack,$safeeval); |
&get_attributes(\%key,\%key_defaults,$parstack,$safeeval,$tagstack); |
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if ($target eq 'web') { |
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# This routine should never return anything. |
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} |
return $result; |
return $result; |
} |
} |
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sub end_key { |
sub end_key { |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my $result = ''; |
my $result = ''; |
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if ($target eq 'web') { |
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# This routine should never return anything. |
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} |
return $result; |
return $result; |
} |
} |
##------------------------------------------------------------------- title |
##------------------------------------------------------------------- title |
Line 157 sub start_title {
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Line 175 sub start_title {
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my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
$title = &Apache::lonxml::get_all_text("/title",$$parser[-1]); |
$title = &Apache::lonxml::get_all_text("/title",$$parser[-1]); |
my $result=''; |
my $result=''; |
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if ($target eq 'web') { |
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# This routine should never return anything. |
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} |
return $result; |
return $result; |
} |
} |
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sub end_title { |
sub end_title { |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my $result = ''; |
my $result = ''; |
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if ($target eq 'web') { |
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# This routine should never return anything. |
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} |
return $result; |
return $result; |
} |
} |
##------------------------------------------------------------------- xlabel |
##------------------------------------------------------------------- xlabel |
Line 170 sub start_xlabel {
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Line 194 sub start_xlabel {
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my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my $result=''; |
my $result=''; |
$xlabel = &Apache::lonxml::get_all_text("/xlabel",$$parser[-1]); |
$xlabel = &Apache::lonxml::get_all_text("/xlabel",$$parser[-1]); |
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if ($target eq 'web') { |
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# This routine should never return anything. |
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} |
return $result; |
return $result; |
} |
} |
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sub end_xlabel { |
sub end_xlabel { |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my $result = ''; |
my $result = ''; |
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if ($target eq 'web') { |
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# This routine should never return anything. |
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} |
return $result; |
return $result; |
} |
} |
##------------------------------------------------------------------- ylabel |
##------------------------------------------------------------------- ylabel |
Line 183 sub start_ylabel {
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Line 213 sub start_ylabel {
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my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my $result=''; |
my $result=''; |
$ylabel = &Apache::lonxml::get_all_text("/ylabel",$$parser[-1]); |
$ylabel = &Apache::lonxml::get_all_text("/ylabel",$$parser[-1]); |
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if ($target eq 'web') { |
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# This routine should never return anything. |
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} |
return $result; |
return $result; |
} |
} |
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sub end_ylabel { |
sub end_ylabel { |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my $result = ''; |
my $result = ''; |
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if ($target eq 'web') { |
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# This routine should never return anything. |
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} |
return $result; |
return $result; |
} |
} |
##------------------------------------------------------------------- label |
##------------------------------------------------------------------- label |
sub start_label { |
sub start_label { |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my $result=''; |
my $result=''; |
my $label = &newhashref(); |
my %label; |
&get_attributes($label,\%label_defaults,$parstack,$safeeval); |
&get_attributes($label,\%label_defaults,$parstack,$safeeval,$tagstack); |
$label->{'text'} = &Apache::lonxml::get_all_text("/label",$$parser[-1]); |
$label->{'text'} = &Apache::lonxml::get_all_text("/label",$$parser[-1]); |
push(@labels,$label); |
push(@labels,\%label); |
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if ($target eq 'web') { |
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# This routine should never return anything. |
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} |
return $result; |
return $result; |
} |
} |
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sub end_label { |
sub end_label { |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my $result = ''; |
my $result = ''; |
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if ($target eq 'web') { |
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# This routine should never return anything. |
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} |
return $result; |
return $result; |
} |
} |
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Line 212 sub end_label {
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Line 254 sub end_label {
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sub start_curve { |
sub start_curve { |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my $result=''; |
my $result=''; |
my $curve = &newhashref(); |
my %curve; |
&get_attributes($curve,\%curve_defaults,$parstack,$safeeval); |
&get_attributes($curve,\%curve_defaults,$parstack,$safeeval,$tagstack); |
push (@curves,$curve); |
push (@curves,$curve); |
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&Apache::lonxml::register('Apache::lonplot',('function','data')); |
&Apache::lonxml::register('Apache::plot',('function','data')); |
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push (@Apache::lonxml::namespace,'curve'); |
push (@Apache::lonxml::namespace,'curve'); |
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if ($target eq 'web') { |
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# This routine should never return anything. |
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} |
return $result; |
return $result; |
} |
} |
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sub end_curve { |
sub end_curve { |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my $result = ''; |
my $result = ''; |
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pop @Apache::lonxml::namespace; |
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&Apache::lonxml::deregister('Apache::lonplot',('function','data')); |
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if ($target eq 'web') { |
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# This routine should never return anything. |
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} |
return $result; |
return $result; |
} |
} |
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Line 232 sub end_curve {
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Line 280 sub end_curve {
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sub start_function { |
sub start_function { |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my $result=''; |
my $result=''; |
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if (exists($curves[-1]->{'data'}) { |
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&Apache::lonxml::warning('Use of <function> precludes use of <data>. The <data> will be omitted in favor of the <function> declaration.'); |
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delete($curves[-1]->{'data'}); |
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} |
$curves[-1]->{'function'} = |
$curves[-1]->{'function'} = |
&Apache::lonxml::get_all_text("/function",$$parser[-1]); |
&Apache::lonxml::get_all_text("/function",$$parser[-1]); |
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if ($target eq 'web') { |
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# This routine should never return anything. |
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} |
return $result; |
return $result; |
} |
} |
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sub end_function { |
sub end_function { |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my $result = ''; |
my $result = ''; |
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if ($target eq 'web') { |
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# This routine should never return anything. |
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} |
return $result; |
return $result; |
} |
} |
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Line 248 sub end_function {
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Line 305 sub end_function {
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sub start_data { |
sub start_data { |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my $result=''; |
my $result=''; |
push( @{$curves[-1]->{'data'}}, |
if (exists($curves[-1]->{'function'})) { |
&Apache::lonxml::get_all_text("/data",$$parser[-1])); |
&Apache::lonxml::warning('Use of <data> precludes use of <function>. The <function> will be omitted in favor of the <data> declaration.'); |
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delete($curves[-1]->{'function'}); |
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} |
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my $datatext = &Apache::lonxml::get_all_text("/data",$$parser[-1]); |
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$datatext =~ s/(\s+$|^\s+)//g; |
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$datatext =~ s/\s+/ /g; |
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if ($datatext !~ /^(([+-]?\d*\.?\d*)[, ]?)+$/) { |
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&Apache::lonxml::warning('Malformed data: '.$datatext); |
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$datatext = ''; |
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} |
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push( @{$curves[-1]->{'data'}},$datatext; |
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if ($target eq 'web') { |
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# This routine should never return anything. |
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} |
return $result; |
return $result; |
} |
} |
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sub end_data { |
sub end_data { |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my $result = ''; |
my $result = ''; |
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if ($target eq 'web') { |
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# This routine should never return anything. |
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} |
return $result; |
return $result; |
} |
} |
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Line 263 sub end_data {
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Line 336 sub end_data {
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sub start_axis { |
sub start_axis { |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my $result=''; |
my $result=''; |
&get_attributes(\%axis,\%label_defaults,$parstack,$safeeval); |
&get_attributes(\%axis,\%label_defaults,$parstack,$safeeval,$tagstack); |
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if ($target eq 'web') { |
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# This routine should never return anything. |
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} |
return $result; |
return $result; |
} |
} |
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sub end_axis { |
sub end_axis { |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my $result = ''; |
my $result = ''; |
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if ($target eq 'web') { |
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# This routine should never return anything. |
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} |
return $result; |
return $result; |
} |
} |
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##------------------------------------------------------------------- misc |
##------------------------------------------------------------------- misc |
sub newhashref{ |
sub get_attributes{ |
my %hash; |
%values = %{shift}; |
return \%hash; |
%defaults = %{shift}; |
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$parstack = shift; |
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$safeeval = shift; |
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$tag = shift; |
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my $attr; |
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foreach $attr (keys %defaults) { |
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$values{$attr} = &Apache::lonxml::get_param($attr,$parstack,$safeeval); |
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my $test = $defaults{$attr}->{'test'}; |
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if (! &$test($values{$attr})) { |
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&Apache::lonxml::warning($tag.':'.$attr.': Bad value. Replacing your value with : '.$defaults{$attr}); |
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$values{$attr} = $defaults{$attr}; |
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} |
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return ; |
} |
} |
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1; |
1; |
__END__ |
__END__ |
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