gettext

1d449499 - xgettext: Improve support for string formatting through methods.

xgettext: Improve support for string formatting through methods. * gettext-tools/src/xg-arglist-context.h: Add comments. (struct formatstring_region_ty): Add 'pass_format' field. (struct flag_region_ty): Add subregion, nsubregions, nsubregions_max, inherit_from_parent_region fields. (new_sub_region): New declaration. (set_format_flag_on_region): New declaration. * gettext-tools/src/xg-arglist-context.c: Include xg-message.h. (the_null_context_region): Update initializer. (inheriting_region): Initialize the new fields. (new_sub_region): New function. (unref_region): Unreference also the subregions. (set_format_flag_on_region): New function. * gettext-tools/src/xg-message.h (set_format_flag_from_context): Fix typo in comment.