NAME

       Log::Report::Lexicon::POT - manage PO files

INHERITANCE

        Log::Report::Lexicon::POT
          is a Log::Report::Lexicon::Table

SYNOPSIS

        # this is usually not for end-users, See ::Extract::PerlPPI
        # using a PO table

        my $pot = Log::Report::Lexicon::POT
           ->read('po/nl.po', charset => 'utf-8')
               or die;

        my $po = $pot->msgid('msgid');
        my $po = $pot->msgid($msgid, $msgctxt);
        print $pot->nrPlurals;
        print $pot->msgstr('msgid', 3);
        print $pot->msgstr($msgid, 3, $msgctxt);
        $pot->write;  # update the file

        # fill the table, by calling the next a lot
        my $po  = Log::Report::Lexicon::PO->new(...);
        $pot->add($po);

        # creating a PO table
        $pot->write('po/nl.po')
            or die;

DESCRIPTION

       This module is reading, extending, and writing POT files.  POT files are used to store translations in
       humanly readable format for most of existing translation frameworks, like GNU gettext and Perl's
       Maketext.  If you only wish to access the translation, then you may use the much more efficient
       Log::Report::Lexicon::POTcompact.

       The code is loosely based on Locale::PO, by Alan Schwartz.  The coding style is a bit off the rest of
       "Log::Report", and there was a need to sincere simplification.  Each PO record will be represented by a
       Log::Report::Lexicon::PO.

       Extends "DESCRIPTION" in Log::Report::Lexicon::Table.

METHODS

       Extends "METHODS" in Log::Report::Lexicon::Table.

   Constructors
       Extends "Constructors" in Log::Report::Lexicon::Table.

       Log::Report::Lexicon::POT->new(%options)
           Create a new POT file.  The initial header is generated for you, but it can be changed using the
           header() method.

            -Option      --Default
             charset       <required>
             date          now
             filename      undef
             index         {}
             nr_plurals    2
             plural_alg    n!=1
             plural_forms  <constructed from nr_plurals and plural_alg>
             textdomain    <required>
             version       undef

           charset => STRING
             The character-set which is used for the output.

           date => STRING
             Overrule the date which is included in the generated header.

           filename => STRING
             Specify an output filename.  The name can also be specified when write() is called.

           index => HASH
             A set of translations (Log::Report::Lexicon::PO objects), with msgid as key.

           nr_plurals => INTEGER
             The number of translations each of the translation with plural form need to have.

           plural_alg => EXPRESSION
             The algorithm to be used to calculate which translated msgstr to use.

           plural_forms => RULE
             [0.992] When this option is used, it overrules "nr_plurals" and "plural_alg".  The RULE should be a
             full "Plural-Forms" field.

           textdomain => STRING
             The package name, used in the directory structure to store the PO files.

           version => STRING
       Log::Report::Lexicon::POT->read($filename, %options)
           Read the POT information from $filename.

            -Option --Default
             charset  <required>

           charset => STRING
             The character-set which is used for the file.  You must specify this explicitly, while it cannot be
             trustfully detected automatically.

       $obj->write( [$filename|$fh], %options )
           When you pass an open $fh, you are yourself responsible that the correct character-encoding (binmode)
           is set.  When the write followed a read() or the filename was explicitly set with filename(), then
           you may omit the first parameter.

            -Option     --Default
             only_active  false

           only_active => BOOLEAN
             [1.02] Do not write records which do have a translation, but where the msgid has disappeared from
             the sources.  By default, these records are commented out (marked with '#~') but left in the file.

   Attributes
       Extends "Attributes" in Log::Report::Lexicon::Table.

       $obj->charset()
           The character-set to be used for reading and writing.  You do not need to be aware of Perl's internal
           encoding for the characters.

       $obj->filename()
           Returns the $filename, as derived from read() or specified during initiation with new(filename).

       $obj->index()
           Returns a HASH of all defined PO objects, organized by msgid.  Please try to avoid using this: use
           msgid() for lookup and add() for adding translations.

       $obj->language()
           Returns the language code, which is derived from the filename.

   Managing PO's
       Extends "Managing PO's" in Log::Report::Lexicon::Table.

       $obj->keepReferencesTo($table)
           Remove all references which are not found as key in the hash $table.  Returns the number of
           references left.

       $obj->removeReferencesTo($filename)
           Remove all the references to the indicate $filename from all defined translations.  Returns the
           number of refs left.

       $obj->stats()
           Returns a HASH with some statistics about this POT table.

       $obj->updated( [$date] )
           Replace the "PO-Revision-Date" with the specified $date, or the current moment.

       Translation

       Extends "Translation" in Log::Report::Lexicon::Table.

       $obj->msgid( STRING, [$msgctxt] )
           Lookup the Log::Report::Lexicon::PO with the STRING.  If you want to add a new translation, use
           add().  Returns "undef" when not defined.

       $obj->msgstr( $msgid, [$count, [$msgctxt]] )
           Returns the translated string for $msgid.  When $count is not specified or "undef", the translation
           string related to "1" is returned.

       Administration

       Extends "Administration" in Log::Report::Lexicon::Table.

       $obj->add($po)
           Add the information from a $po into this POT.  If the msgid of the $po is already known, that is an
           error.

       $obj->header( [$field, [$content]] )
           The translation of a blank MSGID is used to store a MIME header, which contains some meta-data.  When
           only a $field is specified, that content is looked-up (case-insensitive) and returned.  When a
           $content is specified, the knowledge will be stored.  In latter case, the header structure may get
           created.  When the $content is set to "undef", the field will be removed.

       $obj->nrPlurals()
           Inherited, see "Administration" in Log::Report::Lexicon::Table

       $obj->pluralIndex($count)
           Inherited, see "Administration" in Log::Report::Lexicon::Table

       $obj->setupPluralAlgorithm()
           Inherited, see "Administration" in Log::Report::Lexicon::Table

       $obj->translations( [$active] )
           Returns a list with all defined Log::Report::Lexicon::PO objects. When the string $active is given as
           parameter, only objects which have references are returned.

DIAGNOSTICS

       Error: charset parameter is required
       Error: no filename or file-handle specified for PO
           When a PO file is written, then a filename or file-handle must be specified explicitly, or set
           beforehand using the filename() method, or known because the write follows a read() of the file.

       Error: only acceptable parameter is 'ACTIVE'
       Error: textdomain parameter is required

SEE ALSO

       This module is part of Log-Report-Lexicon distribution version 1.03, built on June 04, 2014. Website:
       http://perl.overmeer.net/log-report/

LICENSE

       Copyrights 2007-2014 by [Mark Overmeer]. For other contributors see ChangeLog.

       This program is free software; you can redistribute it and/or modify it under the same terms as Perl
       itself.  See http://www.perl.com/perl/misc/Artistic.html