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bug#26396: 25.1; char-displayable-p on a latin1 tty

From: Paul Eggert
Subject: bug#26396: 25.1; char-displayable-p on a latin1 tty
Date: Fri, 14 Apr 2017 11:59:32 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.0

On 04/13/2017 08:01 PM, Kevin Ryde wrote:
Would char-displayable-p always check encodable and then
ponder what further the kernel ioctls can say about viewable glphs.

Yes, that's what char-displayable-p does now: it checks that the character is one of the at-most-512 characters that the Linux console can currently display. For Linux consoles this is independent of terminal-coding-system. The problem is that other parts of the code obey terminal-coding-system instead of what the Linux console can actually display.

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