Bug 92776

Summary:	[patch] Allow fontconfig to use 3 components in locales
Product:	fontconfig	Reporter:	Koop Mast <kwm>
Component:	library	Assignee:	fontconfig-bugs
Status:	RESOLVED MOVED	QA Contact:	Behdad Esfahbod <freedesktop>
Severity:	normal
Priority:	medium	CC:	akira
Version:	2.11
Hardware:	Other
OS:	FreeBSD
Whiteboard:
i915 platform:		i915 features:
Attachments:	Support 3 component locales

Description Koop Mast 2015-11-02 14:08:03 UTC

Created attachment 119343 [details] [review]
Support 3 component locales

Linux only supports locales with 2 components while POSIX supports
locales with 3 components.

DragonFly and FreeBSD both follow POSIX, which causes fontconfig to
give the following warning:

% env LC_CTYPE=sr_Cyrl_RS.UTF-8 leafpad
Fontconfig warning: ignoring sr_Cyrl_RS.UTF-8: not a valid region tag

For more information about the POSIX documentation:
http://tools.ietf.org/html/bcp47
Chapter 2.1.1 goes over formatting and Appendix-A has more examples.

Comment 1 Akira TAGOH 2015-11-04 02:58:23 UTC

Do you have any pointers that explains POSIX supports BCP47 as a locale representation?
The URL you pointed out is to explan what BCP47 is. it isn't same to what I want to know. AFAIK the POSIX locale system follows similar to BCP47 but has different definition for modifiers say. usually script representation goes into a modifier prefixed by @.

Comment 2 Koop Mast 2015-11-19 12:23:33 UTC

cldr is the authority and that's how they refer to locales and repeat examples of 3-group locales

2 component isn't good enough: serbia has latin and cyrillic based languages, you can't represent both with only 2 components.

The cldr website has a BCP47 section.

http://cldr.unicode.org/ (Unicode Common Locale Data Repository)
http://unicode.org/Public/cldr/2.0.1/ (cldr files)

Comment 3 Akira TAGOH 2015-11-20 02:10:36 UTC

Those two could be represented to sr_RS@latin and sr_RS@cyrilic in glibc say. it isn't entirely true. anyway, just wonder if there are any pointers as a reference that POSIX really supports that style.

Comment 4 GitLab Migration User 2018-08-20 21:46:27 UTC

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