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Man Pages


Manual Reference Pages  -  CONFIG::INIHASH (3)

.ds Aq ’

NAME

Config::IniHash - Perl extension for reading and writing INI files

CONTENTS

VERSION

Version 3.00.05

SYNOPSIS



  use Config::IniHash;
  $Config = ReadINI c:\some\file.ini;



DESCRIPTION

This module reads and writes INI files.

    Functions

ReadINI



        $hashreference = ReadINI ($filename, %options)
        $hashreference = ReadINI (\$data, %options)
        $hashreference = ReadINI (\@data, %options)
        $hashreference = ReadINI ($filehandle, %options)



The returned hash contains a reference to a hash for each section of the INI.



        [section]
        name=value
  leads to
        $hash->{section}->{name}  = value;



The available options are:
heredoc - controls whether the module supports the heredoc syntax :



        name=<<END
        the
        many lines
        long value
        END
        othername=value

        0 : heredocs are ignored, $data->{section}{name} will be <<END
        1 : heredocs are supported, $data->{section}{name} will be "the\nmany lines\nlong value"
                The Perl-lie extensions of name=<<"END" and <<END are not supported!
        Perl : heredocs are supported, $data->{section}{name} will be "the\nmany lines\nlong value"
                The Perl-lie extensions of name=<<"END" and <<END are supported.
                The <<END never interpolates %variables%, the "END" always interpolates variables,
                unlike in other values, the %variables% that are not defined do not stay in the string!



Default: 0 = OFF

systemvars - controls whether the (system) variables enclosed in %% are interpolated and optionaly contains the values in a hash ref.



        name=%USERNAME%
  leads to
        $data->{section}->{name} = "Jenda"

        systemvars = 1  - yes, take values from %ENV
        systemvars = \%hash     - yes, take values from %hash
        systemvars = 0  - no



case - controls whether the created hash is case insensitive. The possible values are



  sensitive     - the hash will be case sensitive
  tolower       - the hash will be case sensitive, all keys are made lowercase
  toupper       - the hash will be case sensitive, all keys are made uppercase
  preserve      - the hash will be case insensitive, the case is preserved (tied)
  lower - the hash will be case insensitive, all keys are made lowercase (tied)
  upper - the hash will be case insensitive, all keys are made uppercase (tied)



withdefaults - controls whether the created section hashes support defaults. See Hash::WithDefaults.
class - allows you to specify the class into which to tie the created hashes. This option overwrites the case and withdefaults options!

You may for example use



  class => Tie::IxHash,



to store the sections in hashes that remember the insertion order.

sectionorder - if set to a true value then created hash will contain



        $config->{__SECTIONS__} = [ the, names, of, the, sections, in, the,
                order, they, were, specified, in, the, INI file];



- if set to an array ref, then the list will be stored in that array, and no $config->{’__SECTIONS__’} is created. The case of the section names stored in this array is controled by the case option even in case you specify the class.

allowmultiple - if set to a true scalar value then multiple items with the same names in a section do not overwrite each other, but result in an array of the values.

- if set to a hash of hashes (or hash of arrays or hash of comma separated item names) specifies what items in what sections will end up as hashes containing the list of values. All the specified items will be arrays, even if there is just a single value. To affect the items in all sections use section name ’*’.

By default false.

forValue - allows you to install a callback that will be called for each value as soon as it is read but before it is stored in the hash. The function is called like this:



  $value = $forValue->($name, $value, $sectionname, $INIhashref);



If the callback returns an undef, the value will not be stored.

comment - regular expression used to identify comments or a string containing the list of characters starting a comment. Each line is tested against the regexp is ignored if matches. If you specify a string a regexp like this will be created:



        qr/^\s*[the_list]/



The default is



        qr/^\s*[#;]



layer - the IO layer(s) to use when opening the file. See perldoc perlopen.

If the file is in UTF8 and starts with a BOM it will be automaticaly opened in UTF8 mode and the BOM will be stripped. If it doesn’t start with the BOM you have to specify the utf8 layer!

You may also set the defaults for the options by modifying the $Config::IniHash::optionname variables. These default settings will be used if you do not specify the option in the ReadINI() or ReadSection() call.

AddDefaults



  AddDefaults( $config, normal section name, default section name);
  AddDefaults( $config, normal section name, \%defaults);



This subroutine adds a some default values into a section. The values are NOT copied into the section, but rather the section knows to look up the missing options in the default section or hash.

Eg.



  if (exists $config->{:default}) {
        foreach my $section (keys %$config) {
          next if $section =~ /^:/;
          AddDefaults( $config, $section, :default);
        }
  }



ReadSection



  $hashreference = ReadSection ($string)



This function parses a string as if it was a section of an INI file and creates a hash with the values. It accepts the same options as ReadINI.

WriteINI



  WriteINI ($filename, $hashreference)



Writes the hash of hashes to a file.

PrintINI

The same as WriteINI().

AUTHOR

Jan Krynicky <Jenda@Krynicky.cz> http://Jenda.Krynicky.cz

COPYRIGHT

Copyright (c) 2002-2005 Jan Krynicky <Jenda@Krynicky.cz>. All rights reserved.

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

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perl v5.20.3 CONFIG::INIHASH (3) 2016-04-03

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