I know that gettext seems a bit complicated at first, but it's worth learning and using, despite all its shortcomings. Once you get a way to extract the strings with xgettext, gettext tools will take care of almost everything else.
gettext is fine, except that it does not fit in sqwebmail's model, where all language-dependent strings are already externalized into separate files.
pgp00000.pgp
Description: PGP signature