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<!--
Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 The SCons Foundation
This file is processed by the bin/SConsDoc.py module.
See its __doc__ string for a discussion of the format.
-->
<tool name="msginit">
<summary>
This scons tool is a part of scons &t-link-gettext; toolset. It provides
scons interface to <command>msginit(1)</command> program, which creates new
<literal>PO</literal> file, initializing the meta information with values from
user's environment (or options).
</summary>
<sets>
MSGINIT
MSGINITCOM
MSGINITCOMSTR
MSGINITFLAGS
POAUTOINIT
POCREATE_ALIAS
POSUFFIX
POTSUFFIX
_MSGINITLOCALE
</sets>
<uses>
POTDOMAIN
LINGUAS_FILE
POAUTOINIT
</uses>
</tool>
<builder name="POInit">
<summary>
This builder belongs to &t-link-msginit; tool. The builder initializes missing
<literal>PO</literal> file(s) if &cv-link-POAUTOINIT; is set. If
&cv-link-POAUTOINIT; is not set (default), &b-POInit; prints instruction for
user (that is supposed to be a translator), telling how the
<literal>PO</literal> file should be initialized. In normal projects
<emphasis>you should not use &b-POInit; and use &b-link-POUpdate;
instead</emphasis>. &b-link-POUpdate; chooses intelligently between
<command>msgmerge(1)</command> and <command>msginit(1)</command>. &b-POInit;
always uses <command>msginit(1)</command> and should be regarded as builder for
special purposes or for temporary use (e.g. for quick, one time initialization
of a bunch of <literal>PO</literal> files) or for tests.
Target nodes defined through &b-POInit; are not built by default (they're
<literal>Ignore</literal>d from <literal>'.'</literal> node) but are added to
special <literal>Alias</literal> (<literal>'po-create'</literal> by default).
The alias name may be changed through the &cv-link-POCREATE_ALIAS;
construction variable. All <literal>PO</literal> files defined through
&b-POInit; may be easily initialized by <command>scons po-create</command>.
<emphasis>Example 1</emphasis>.
Initialize <filename>en.po</filename> and <filename>pl.po</filename> from
<filename>messages.pot</filename>:
<example>
# ...
env.POInit(['en', 'pl']) # messages.pot --> [en.po, pl.po]
</example>
<emphasis>Example 2</emphasis>.
Initialize <filename>en.po</filename> and <filename>pl.po</filename> from
<filename>foo.pot</filename>:
<example>
# ...
env.POInit(['en', 'pl'], ['foo']) # foo.pot --> [en.po, pl.po]
</example>
<emphasis>Example 3</emphasis>.
Initialize <filename>en.po</filename> and <filename>pl.po</filename> from
<filename>foo.pot</filename> but using &cv-link-POTDOMAIN; construction
variable:
<example>
# ...
env.POInit(['en', 'pl'], POTDOMAIN='foo') # foo.pot --> [en.po, pl.po]
</example>
<emphasis>Example 4</emphasis>.
Initialize <literal>PO</literal> files for languages defined in
<filename>LINGUAS</filename> file. The files will be initialized from template
<filename>messages.pot</filename>:
<example>
# ...
env.POInit(LINGUAS_FILE = 1) # needs 'LINGUAS' file
</example>
<emphasis>Example 5</emphasis>.
Initialize <filename>en.po</filename> and <filename>pl.pl</filename>
<literal>PO</literal> files plus files for languages defined in
<filename>LINGUAS</filename> file. The files will be initialized from template
<filename>messages.pot</filename>:
<example>
# ...
env.POInit(['en', 'pl'], LINGUAS_FILE = 1)
</example>
<emphasis>Example 6</emphasis>.
You may preconfigure your environment first, and then initialize
<literal>PO</literal> files:
<example>
# ...
env['POAUTOINIT'] = 1
env['LINGUAS_FILE'] = 1
env['POTDOMAIN'] = 'foo'
env.POInit()
</example>
which has same efect as:
<example>
# ...
env.POInit(POAUTOINIT = 1, LINGUAS_FILE = 1, POTDOMAIN = 'foo')
</example>
</summary>
</builder>
<!-- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -->
<cvar name="POCREATE_ALIAS">
<summary>
Common alias for all <literal>PO</literal> files created with &b-POInit;
builder (default: <literal>'po-create'</literal>).
See &t-link-msginit; tool and &b-link-POInit; builder.
</summary>
</cvar>
<!-- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -->
<cvar name="POSUFFIX">
<summary>
Suffix used for <literal>PO</literal> files (default: <literal>'.po'</literal>)
See &t-link-msginit; tool and &b-link-POInit; builder.
</summary>
</cvar>
<!-- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -->
<cvar name="MSGINIT">
<summary>
Path to <command>msginit(1)</command> program (found via
<literal>Detect()</literal>).
See &t-link-msginit; tool and &b-link-POInit; builder.
</summary>
</cvar>
<!-- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -->
<cvar name="MSGINITCOM">
<summary>
Complete command line to run <command>msginit(1)</command> program.
See &t-link-msginit; tool and &b-link-POInit; builder.
</summary>
</cvar>
<!-- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -->
<cvar name="MSGINITCOMSTR">
<summary>
String to display when <command>msginit(1)</command> is invoked
(default: <literal>''</literal>, which means ``print &cv-link-MSGINITCOM;'').
See &t-link-msginit; tool and &b-link-POInit; builder.
</summary>
</cvar>
<!-- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -->
<cvar name="MSGINITFLAGS">
<summary>
List of additional flags to <command>msginit(1)</command> (default:
<literal>[]</literal>).
See &t-link-msginit; tool and &b-link-POInit; builder.
</summary>
</cvar>
<!-- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -->
<cvar name="_MSGINITLOCALE">
<summary>
Internal ``macro''. Computes locale (language) name based on target filename
(default: <literal>'${TARGET.filebase}' </literal>).
</summary>
See &t-link-msginit; tool and &b-link-POInit; builder.
</cvar>
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