NAME

Colon::Config - XS helper to read a configuration file using ':' as separator

VERSION

version 0.002

SYNOPSIS

Colon::Config sample usage

#!perl

use strict;
use warnings;

use Test2::Bundle::Extended;
use Test2::Tools::Explain;

use Colon::Config;

my $config_sample = <<'EOS';
# this is a comment
fruit:banana
world: space
empty:

# ^^ empty line above is ignored
not a column (ignored)
sample:value:with:column
last:value
EOS

my $array;
is $array = Colon::Config::read($config_sample), [

    # note this is an Array Ref by default
    'fruit'  => 'banana',
    'world'  => 'space',
    'empty'  => undef,
    'sample' => 'value:with:column',
    'last'   => 'value'
  ]
  or diag explain $array;

my $hash;
is $hash = Colon::Config::read_as_hash($config_sample), {
    'fruit'  => 'banana',
    'world'  => 'space',
    'empty'  => undef,
    'sample' => 'value:with:column',
    'last'   => 'value'
  }
  or diag explain $hash;

done_testing;

DESCRIPTION

Colon::Config

XS helper to read a configuration file using ':' as separator (could be customize later)

This right now pretty similar to a double split like this one

[ map { ( split( m{:\s+}, $_ ) )[ 0, 1 ] } split( m{\n}, $string ) ];

Basic parsing rules

':' is the default character separator between key and value
spaces or tab characters after ':' are ignored
'#' indicates the beginning of a comment line
spaces or tab characters before a comment '#' are ignored
'\n' is used for detecting 'End Of line'

Available functions

read( $content )

Parse the string $content and return an Array Ref with the list of key/values parsed.

Note: return undef when not called with a string

read_as_hash( $content )

This helper is provided as a convenient feature if want to manipulate the Array Ref from read as a Hash Ref.

Benchmark

Here are some benchmarks to check the advantage of the XS helper (name read)

# Using 1 key/value pairs
             Rate read_pp read_xs
read_pp  628770/s      --    -66%
read_xs 1869031/s    197%      --
#
# Using 4 key/value pairs
            Rate read_pp read_xs
read_pp 237209/s      --    -58%
read_xs 569785/s    140%      --
#
# Using 16 key/value pairs
            Rate read_pp read_xs
read_pp  66985/s      --    -57%
read_xs 157592/s    135%      --
#
# Using 64 key/value pairs
           Rate read_pp read_xs
read_pp 17805/s      --    -59%
read_xs 43798/s    146%      --
#
# Using 256 key/value pairs
           Rate read_pp read_xs
read_pp  4678/s      --    -54%
read_xs 10278/s    120%      --
#
# Using 1024 key/value pairs
          Rate read_pp read_xs
read_pp 1175/s      --    -55%
read_xs 2598/s    121%      --

TODO

support for custom characters: separator, end of line, spaces, ...

LICENSE

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.

DISCLAIMER OF WARRANTY

BECAUSE THIS SOFTWARE IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE SOFTWARE, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE SOFTWARE "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE SOFTWARE IS WITH YOU. SHOULD THE SOFTWARE PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR, OR CORRECTION.

IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE SOFTWARE AS PERMITTED BY THE ABOVE LICENCE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE SOFTWARE (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE SOFTWARE TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

AUTHOR

Nicolas R <atoomic@cpan.org>

COPYRIGHT AND LICENSE