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input: kitty: always treat composed characters as ‘printable’

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Certain dead key combinations results different escape sequences in
foot, compared to kitty, when the kitty keyboard protocol is used.

        if (composed && is_text)
            key = utf32;
        else {
            key = xkb_keysym_to_utf32(sym_to_use);
            if (key == 0)
                return false;

            /* The *shifted* key. May be the same as the unshifted
             * key - if so, this is filtered out below, when
             * emitting the CSI */
            alternate = xkb_keysym_to_utf32(sym);
        }

If is_text=false, we’ll fall through to the non-composed
logic. is_text is set to true if the character is printable *and*
there aren’t any non-consumed modifiers enabled.

shift+space is one example where shift is *not* consumed (typically -
may be layouts where it is).

As a result, pressing ", followed by shift+space with the
international english keyboard layout (where " is a dead key) results
in different sequences in foot and kitty.

This patch fixes this by always treating composed characters as
printable.

Closes #1120
This commit is contained in:
Daniel Eklöf 2022-07-26 18:44:29 +02:00
parent 4abf46955f
commit 801970aa33
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GPG key ID: 5BBD4992C116573F
2 changed files with 5 additions and 1 deletions
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input.c
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@ -1239,7 +1239,7 @@ emit_escapes:
? ctx->level0_syms.syms[0]
: sym;
if (composed && is_text)
if (composed)
key = utf32;
else {
key = xkb_keysym_to_utf32(sym_to_use);