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Re: Thai support in framebuffer d-i

On Fri, Feb 12, 2010 at 2:12 AM, Frans Pop <elendil@planet.nl> wrote:
> OK, I'm convinced.
> Sorry if I seemed negative about this, but I really thought there could be
> no way you were seeing this with a regular image as we're supposed to be
> only including characters needed by supported languages in the unifont
> included in the installer.
> However, it turns out that the build system worked slightly different than
> I thought, which meant glyphs that shouldn't be included actually are
> being included. But I've fixed that today (resulting in e.g. a 300kB size
> reduction for a regular amd64 netboot image).

Ah, I see. So, I got the luck from the leak..

> I also would have thought enabling Thai for the regular installer could
> have been done much sooner as I don't see what would have changed recently
> that "suddenly" makes this possible now.

I thought so. But it turns out to be that it couldn't be enabled before

I've tried your suggested steps on Lenny installer. Yes, it can display
Thai, but all combining characters are missing. But this problem
does not occur with Squeeze image.

So, it must be some changes in bterm that enabled this.

> The next question is: do we actually want to enable Thai in the regular
> installer. IMO the answer is yes, especially as it is effectively already
> supported and will not result in a size increase of images.
> Also, I see no reason why e.g. Vietnamese should be supported and Thai not.
> I'm going to ask Christian to actually manage the change. AFAIK there's
> three things that need to be done:
> - we'll need a proper "needed-characters" file for Thai from you
> - switching the level in localechooser
> - removing th from GI_LANGS in build/config/common

I've prepared the th.utf file. Please see it in the attachment.

> I've quickly built an image using that file so the missing characters would
> be included.
> There was still one missing character: 4th line, 5th from the end. But it
> was there when I used your testmsg-di file during the build. This shows
> the importance of a complete "needed-characters" file.

Do we need to add the missing glyphs to the font?
I can do that. Just suggest me where to get the source.

Theppitak Karoonboonyanan

Attachment: th.utf
Description: Binary data

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