Re: CJK Locale Inconsistencies.

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I didn't get any responses about this so I played until I got relatively good results.

First, I changed the DejaVu binding from "strong" to "same". This seemed to play nice with Flash.

Next, I applied the attached patch. It basically forces the locale environment to always be read as en_US.UTF-8.

What might be the negative side effects of that last patch? Is it performance?


Pat Suwalski wrote:

I was wondering if anyone might have some insight into a fontconfig problem I'm having. I'm hoping to solve it without actually changing code, but that is always a possibility.

I installed an Arphic Chinese font. In the en_US.UTF-8 locale it looks great, because programs like Firefox will use DejaVu for the latin text and only use the Chinese characters from the Arphic font as needed.

In the zh_CN.UTF-8 locale it seems that the Arphic font magically has priority. Pages in Firefox look terrible because it uses the cruddy monotype latin characters from the Arphic font.

To work around this I made a strong binding for DejaVu Sans. This worked well throughout, except it broke one program: Flash. I guess Flash isn't smart enough to fall through font matches. It would attempt to get a Chinese character, look in DejaVu Sans, not find it, and then not fall through. So, it would draw a missing character box.

My most recent approach has been to actually edit the Arphic font, and remove everything except the CJK glyphs. Then, without specifying a strong binding for DejaVu, everything seems to work well in both locales. However, this is a rather drastic approach that could have very bad side effects in all sorts of places, like printing.

So, my question is, is there a way to make fontconfig behave in the Chinese locale as it does in the English one?

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diff -ur fontconfig-2.4.2.orig/src/fcdefault.c fontconfig-2.4.2/src/fcdefault.c
--- fontconfig-2.4.2.orig/src/fcdefault.c	2006-09-09 12:50:29.000000000 -0400
+++ fontconfig-2.4.2/src/fcdefault.c	2007-07-26 14:33:37.000000000 -0400
@@ -67,6 +67,9 @@
+    /* Hack */
+    strcpy (ctype, "en_CA.UTF-8");
     /* ignore missing or empty ctype */
     if (ctype && *ctype != '\0')
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