screen: use UTF-8 representation

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Store text in ScreenLines as UTF-8, so it can be sent as-is to the UI
layer. `utfc_char2bytes(off,buf)` is removed, as `ScreenLines[off]` now
already contains this representation.

To recover the codepoints that the screen arrays previously contained, use
utfc_ptr2char (or utf_ptr2char to ignore composing chars).

NB: This commit does NOT change how screen.c processes incoming UTF-8 data
from buffers, cmdline, messages etc. Any algorithm that operates on UCS-4
(like arabic shaping, treatment of non-printable chars)
is left unchanged for now.

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This commit is contained in:

Björn Linse

2018-02-10 11:03:59 +01:00

parent 315b7f8632

commit d8e18c96a9

5 changed files with 365 additions and 667 deletions

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src/nvim/screen.c

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