po2i18n - Converter for po files


Written by:              Udo Richter <udo_richter@gmx.de>
Project's homepage:      http://www.udo-richter.de/vdr/scripts.html#po2i18n
                         http://www.udo-richter.de/vdr/scripts.en.html#po2i18n



About
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po2i18n is a perl script that generates an i18n.c file compatible to the i18n
system of VDR 1.2.0 - VDR 1.5.6, based on the .po files of VDR 1.5.7. This
allows plugins to transit to the translation system of VDR 1.5.7 while 
maintaining compatibility to earlier versions. The script can be used manually
or automatically as part of the Makefile.


Use
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po2i18n.pl is a filter and can be used manually like this:

  ./po2i18n.pl < i18n-template.c > i18n.c
  
The filter reads all relevant ./po/*.po files and writes the i18n strings
into the template file. Strings will be added between the following two lines:

  // START I18N
  // END I18N

See also the sample i18n.h and i18n-template.c file. Note that the phrases data
structure is encapsulated in #if VDRVERSNUM < 10507, so the i18n strings won't 
be in the plugin file after 1.5.7. The call to RegisterI18n() of your plugin 
should also be encapsulated like this.

po2i18n can also generate the i18n.c file on the fly while compiling. The 
changes to the Makefile are demonstrated by the included Makefile.diff sample.
With these changes, the i18n.c file will be generated on VDR up to 1.5.6, and
the whole gettext conversion is skipped. From 1.5.7 on, the i18n-template.c 
file will be simply copied as a dummy, and the new locale system will run.

As a drawback, the automatic .dependencies for i18n.c won't work.