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7c4c718b
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2024-09-30T06:13:38
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Allow only the first group in symbols sections when using RMLVO
Currently `xkb_keymap_num_layouts` may return a greater number than the
number of layouts configured using RMLVO, because we allow symbols
sections to define various groups per key.
This is unintuitive and kind of buggy: groups should be added via rules
by setting an explicit `:n` modifier.
Fix: when parsing a keymap using RMLVO resolution:
- Get the expected layouts count from the resulting KcCGST.
- Drop the groups after the first one in included symbols sections. This
will ensure that a symbol section can only define one group per key.
Notes:
- Compiling a keymap string directly is unaffected.
- RMLVO resolution may still produce more groups than the input layouts.
Indeed, some legacy rules in xkeyboard-config rely on this to insert
automatically a US layout before the given non-Latin one, resulting
in two layouts while only one was given.
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