Re: [PATCH 2/3] i18n: Only extract comments marked by special tag

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Jiang Xin <worldhello.net@xxxxxxxxx> writes:

> When extract l10n messages, we use "--add-comments" option to keep
> comments right above the l10n messages for references.  But sometimes
> irrelevant comments are also extracted.  For example in the following
> code block, the comment in line 2 will be extracted as comment for the
> l10n message in line 3, but obviously it's wrong.
>
>         { OPTION_CALLBACK, 0, "ignore-removal", &addremove_explicit,
>           NULL /* takes no arguments */,
>           N_("ignore paths removed in the working tree (same as
>           --no-all)"),
>           PARSE_OPT_NOARG, ignore_removal_cb },
>
> Since almost all comments for l10n translators are marked with the same
> prefix (tag): "TRANSLATORS:", it's safe to only extract comments with
> this special tag.  I.E. it's better to call xgettext as:
>
>         xgettext --add-comments=TRANSLATORS: ...
>
> Also tweaks the multi-line comment in "init-db.c", to make it start with
> the proper tag, not "* TRANSLATORS:" (which has a star before the tag).

Hmph.

I am not very happy with this change, as it would force us to
special case "Translators" comment to follow a non-standard
multi-line comment formatting convention.  Is there a way to tell
xgettext to accept both of these forms?

        /* TRANSLATORS: this is a short comment to help you */
        _("foo bar");

        /*
         * TRANSLATORS: this comment is to help you, but it is
         * a lot longer to fit on just a single line.
         */
        _("bar baz");


>
> Signed-off-by: Jiang Xin <worldhello.net@xxxxxxxxx>
> ---
>  Makefile          | 2 +-
>  builtin/init-db.c | 8 +++-----
>  2 files changed, 4 insertions(+), 6 deletions(-)
>
> diff --git a/Makefile b/Makefile
> index 2128ce3..a53f3a8 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -2102,7 +2102,7 @@ pdf:
>  
>  XGETTEXT_FLAGS = \
>  	--force-po \
> -	--add-comments \
> +	--add-comments=TRANSLATORS: \
>  	--msgid-bugs-address="Git Mailing List <git@xxxxxxxxxxxxxxx>" \
>  	--from-code=UTF-8
>  XGETTEXT_FLAGS_C = $(XGETTEXT_FLAGS) --language=C \
> diff --git a/builtin/init-db.c b/builtin/init-db.c
> index c7c76bb..56f85e2 100644
> --- a/builtin/init-db.c
> +++ b/builtin/init-db.c
> @@ -412,11 +412,9 @@ int init_db(const char *template_dir, unsigned int flags)
>  	if (!(flags & INIT_DB_QUIET)) {
>  		int len = strlen(git_dir);
>  
> -		/*
> -		 * TRANSLATORS: The first '%s' is either "Reinitialized
> -		 * existing" or "Initialized empty", the second " shared" or
> -		 * "", and the last '%s%s' is the verbatim directory name.
> -		 */
> +		/* TRANSLATORS: The first '%s' is either "Reinitialized
> +		   existing" or "Initialized empty", the second " shared" or
> +		   "", and the last '%s%s' is the verbatim directory name. */
>  		printf(_("%s%s Git repository in %s%s\n"),
>  		       reinit ? _("Reinitialized existing") : _("Initialized empty"),
>  		       shared_repository ? _(" shared") : "",
--
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