Free field data software for linux

fields::aliased is a Perl module that can create aliases for object fields.

SYNOPSIS

package MyPackage;
use strict;
use fields qw($scalar @array %hash);

sub new {
my $class = shift;
my $self = fields::new($class);

return $self;
}

sub mymethod {
my MyPackage $self = shift;
use fields::aliased qw($self $scalar @array %hash);

$scalar = 1;
@array = (2 .. 4);
%hash = (one => 1, two => 2);
}

This module is a companion to the fields module, which allows efficient handling of instance variables with checking at compile time. It goes one step further and actually creates lexical aliases to the instance values, which can make code not only easier to type, but easier to read as well.

Declarations

You declare the fields using the fields pragma, as always.

use fields qw($scalar @array %hash nosigil);

Each field name may be preceded by a type sigil to indicate which kind of variable it is. Names without the type sigil are treated as scalars.

For names beginning with an underscore, see "PRIVATE FIELDS" below.

Constructors

You call fields::new to create the object.

my $self = fields::new($class);

Usage

In each method that uses the individual fields, you add a line similar to the following:

use fields::aliased qw($self $scalar @array %hash nosigil);

That is, list the variable being used for the object reference, and then the names of the fields that you are going to use in this method. fields::aliased takes care of declaring the appropriate Perl lexical variables and linking them to the appropriate field. You only need to specify the fields you are actually going to use, including any inherited from superclasses.

Sort::Fields is a Perl module that can sort lines containing delimited fields.

SYNOPSIS

use Sort::Fields;
@sorted = fieldsort [3, 2n], @lines;
@sorted = fieldsort +, [-1, -3, 0], @lines;

$sort_3_2n = make_fieldsort [3, 2n], @lines;
@sorted = $sort_3_2n->(@lines);

Sort::Fields provides a general purpose technique for efficiently sorting lists of lines that contain data separated into fields.

Sort::Fields automatically imports two subroutines, fieldsort and make_fieldsort, and two variants, stable_fieldsort and make_stable_fieldsort. make_fieldsort generates a sorting subroutine and returns a reference to it. fieldsort is a wrapper for the make_fieldsort subroutine.

The first argument to make_fieldsort is a delimiter string, which is used as a regular expression argument for a split operator. The delimiter string is optional. If it is not supplied, make_fieldsort splits each line using /s+/.

The second argument is an array reference containing one or more field specifiers. The specifiers indicate what fields in the strings will be used to sort the data. The specifier "1" indicates the first field, "2" indicates the second, and so on. A negative specifier like "-2" means to sort on the second field in reverse (descending) order. To indicate a numeric rather than alphabetic comparison, append "n" to the specifier. A specifier of "0" means the entire string ("-0" means the entire string, in reverse order).

The order in which the specifiers appear is the order in which they will be used to sort the data. The primary key is first, the secondary key is second, and so on.
fieldsort [1, 2], @data is roughly equivalent to make_fieldsort([1, 2])->(@data). Avoid calling fieldsort repeatedly with the same sort specifiers. If you need to use a particular sort more than once, it is more efficient to call make_fieldsort once and reuse the subroutine it returns.

stable_fieldsort and make_stable_fieldsort are like their "unstable" counterparts, except that the items that compare the same are maintained in their original order.

EXAMPLES

Some sample data (in array @data):

123 asd 1.22 asdd
32 ewq 2.32 asdd
43 rewq 2.12 ewet
51 erwt 34.2 ewet
23 erww 4.21 ewet
91 fdgs 3.43 ewet
123 refs 3.22 asdd
123 refs 4.32 asdd

# alpha sort on column 1
print fieldsort [1], @data;

123 asd 1.22 asdd
123 refs 3.22 asdd
123 refs 4.32 asdd
23 erww 4.21 ewet
32 ewq 2.32 asdd
43 rewq 2.12 ewet
51 erwt 34.2 ewet
91 fdgs 3.43 ewet

# numeric sort on column 1
print fieldsort [1n], @data;

23 erww 4.21 ewet
32 ewq 2.32 asdd
43 rewq 2.12 ewet
51 erwt 34.2 ewet
91 fdgs 3.43 ewet
123 asd 1.22 asdd
123 refs 3.22 asdd
123 refs 4.32 asdd

# reverse numeric sort on column 1
print fieldsort [-1n], @data;

123 asd 1.22 asdd
123 refs 3.22 asdd
123 refs 4.32 asdd
91 fdgs 3.43 ewet
51 erwt 34.2 ewet
43 rewq 2.12 ewet
32 ewq 2.32 asdd
23 erww 4.21 ewet

# alpha sort on column 2, then alpha on entire line
print fieldsort [2, 0], @data;

123 asd 1.22 asdd
51 erwt 34.2 ewet
23 erww 4.21 ewet
32 ewq 2.32 asdd
91 fdgs 3.43 ewet
123 refs 3.22 asdd
123 refs 4.32 asdd
43 rewq 2.12 ewet

# alpha sort on column 4, then numeric on column 1, then reverse
# numeric on column 3
print fieldsort [4, 1n, -3n], @data;

32 ewq 2.32 asdd
123 refs 4.32 asdd
123 refs 3.22 asdd
123 asd 1.22 asdd
23 erww 4.21 ewet
43 rewq 2.12 ewet
51 erwt 34.2 ewet
91 fdgs 3.43 ewet

# now, splitting on either literal period or whitespace
# sort numeric on column 4 (fractional part of decimals) then
# numeric on column 3 (whole part of decimals)
print fieldsort (?:.|s+), [4n, 3n], @data;

51 erwt 34.2 ewet
43 rewq 2.12 ewet
23 erww 4.21 ewet
123 asd 1.22 asdd
123 refs 3.22 asdd
32 ewq 2.32 asdd
123 refs 4.32 asdd
91 fdgs 3.43 ewet

# alpha sort on column 4, then numeric on the entire line
# NOTE: produces warnings under -w
print fieldsort [4, 0n], @data;

32 ewq 2.32 asdd
123 asd 1.22 asdd
123 refs 3.22 asdd
123 refs 4.32 asdd
23 erww 4.21 ewet
43 rewq 2.12 ewet
51 erwt 34.2 ewet
91 fdgs 3.43 ewet

# stable alpha sort on column 4 (maintains original relative order
# among items that compare the same)
print stable_fieldsort [4], @data;

123 asd 1.22 asdd
32 ewq 2.32 asdd
123 refs 3.22 asdd
123 refs 4.32 asdd
43 rewq 2.12 ewet
51 erwt 34.2 ewet
23 erww 4.21 ewet
91 fdgs 3.43 ewet

Gimp::Data is a Perl module to set and get state data.

SYNOPSIS

use Gimp::Data;

$Gimp::Data{value1} = "Hello";
print $Gimp::Data{value1},", World!!n";

With this module, you can access plugin-specific (or global) data in Gimp, i.e. you can store and retrieve values that are stored in the main Gimp application.

An example would be to save parameter values in Gimp, so that on subsequent invocations of your plug-in, the user does not have to set all parameter values again (Gimp::Fu does this already).

Local Data Manager (LDM) is a collection of cooperating programs that select, capture, manage, and distribute arbitrary data products.
The system is designed for event-driven data distribution, and is currently used in the Unidata Internet Data Distribution (IDD) project. The LDM system includes network client and server programs and their shared protocols.
An important characteristic of the LDM is its support for flexible, site-specific configuration.
Enhancements:
- Fixes for timestamp bugs.

Eclipse FieldViewer is a structured viewer component that displays data entry fields for model objects in a user defined, form based layout.
Eclipse FieldViewer is similar to the TableViewer component from JFace. Eclipse Fieldviewer separates the model from viewers in a similar way using Content- and Labelproviders to bind the data to the fields of the viewer. A Fieldviewer can display an array of similar elements. Unlike a tableviewer only a single element is shown at a time. The layout of the fields is not predefined as in a tableviewer.
This widget can be used in software using other JFace components (eg RCP applications).
Main features:
- interface similar to that of a JFace-TableViewer()
- ContentProvider(), LabelProvider() and Font-/ColorProvider()
- fields can display text and/or image
- ViewerSorter() and ViewerFilter()
- semi-automatic layout for simple requirements
- fully configurable layout of fields if necessary
- editable fields using standard CellEditors
Unlike a table viewer the Eclipse Fieldviewer is not a widget that has very unique features by itself. An experienced programmer can easily create the fields from scratch or use a tool for this task.
An Eclipse Fieldviewer widget is nice if you have to display data from a database where the user decides which element to display. It is also very well suited if you combine a Tableviewer()/TreeViewer() with a FieldViewer() and the user can decide how he wants the data displayed. Editable fields in these widgets use CellEditors to change the contents of the underlying model so the corresponding code can be reused and is not specifically tied to a single field.

Mail::Message::Field contains one line of a message header.

INHERITANCE

Mail::Message::Field
is a Mail::Reporter

Mail::Message::Field is extended by
Mail::Message::Field::Fast
Mail::Message::Field::Flex
Mail::Message::Field::Full

SYNOPSIS

my $field = Mail::Message::Field->new(From => fish@tux.aq);
print $field->name;
print $field->body;
print $field->comment;
print $field->content; # body & comment
$field->print(*OUT);
print $field->string;
print "$fieldn";
print $field->attribute(charset) || us-ascii;

This implementation follows the guidelines of rfc2822 as close as possible, and may there produce a different output than implementations based on the obsolete rfc822. However, the old output will still be accepted.

These objects each store one header line, and facilitates access routines to the information hidden in it. Also, you may want to have a look at the added methods of a message:

my @from = $message->from;
my $sender = $message->sender;
my $subject = $message->subject;
my $msgid = $message->messageId;

my @to = $message->to;
my @cc = $message->cc;
my @bcc = $message->bcc;
my @dest = $message->destinations;

my $other = $message->get(Reply-To);