Config::File - Parse a simple configuration file

Config::File provides an interface to parse simple -although complete
for most needs- configuration files. The syntax of the configuration
file is as follows:

    # This is a comment
    VALUE_ONE = foo
    VALUE_TWO = $VALUE_ONE/bar
    VALUE_THREE = The value contains a \# (hash). # This is a comment.

Options can be clustered when creating groups:

    CLUSTER_ONE[data] = data cluster one
    CLUSTER_ONE[value] = value cluster one
    CLUSTER_TWO[data] = data cluster two
    CLUSTER_TWO[value] = value cluster two

Then values can be fetched using this syntax:

    $hash_config->{CLUSTER_ONE}{data};

There can be as many sub-options in a cluster as needed.

    BIG_CLUSTER[part1][part2][part3] = data

is fetched by:
    $hash_config->{BIG_CLUSTER}{part1}{part2}{part3};

There are a couple of restrictions as for the names of the keys. First of all,
all the characters should be alphabetic, numeric, underscores or hyphens, with
square brackets allowed for the clustering. That is, the keys should conform
to /^[A-Za-z0-9_-]+$/

This means also that no space is allowed in the key part of the line.

    CLUSTER_ONE[data] = data cluster one      # Right
    CLUSTER_ONE[ data ] = data cluster one    # Wrong

For further details, please refer to the module's documentation.

INSTALLATION

Installing this module is like installing any standard Perl module,
this means:

   perl Makefile.PL
   make
   make test
   make install

DEPENDENCIES

This module requires only core modules: 

   Carp
   Exporter
   IO::File

COPYRIGHT AND LICENCE

Development was started by Sebastien J. Gross <[email protected]>, from 2003
maintained by Gunnar Wolf <[email protected]>. By 2018 Stockholm University took
over as maintainer.

All rights reserved.  This program is free software; you can redistribute
it and/or modify it under the terms of the GPL v2 (or later, at your
choice).