Author :
Pierre Le Marre
Date :
2025-04-02 10:46:06
Hash :e09cbe66 Message :symbols: Fix handling of empty keys
Before this commit, the following symbols:
```c
xkb_symbols {
virtual_modifiers M1, M2;
key <A> {};
key <B> { [] };
key.vmods = M1;
key <C> {};
key <D> { vmods = M2 };
};
```
would be equivalent to:
```c
xkb_symbols {
virtual_modifiers M1,M2;
key <B> { [ NoSymbol ] };
};
```
`<B>` entry could be skipped but is harmless. However, `<C>` and `<D>`
are missing, which would lead to the mapping resolution of `M1` and
`M2` failing.
After this commit, it is equivalent to:
```c
virtual_modifiers M1,M2;
key <C> { vmods = M1 };
key <D> { vmods = M2 };
```
Empty keys are skipped entirely, but any explicit field:
- is taken into account: previously they would be skipped if there
were no group;
- forces the key to be printed at serialization.
Pierre Le Marre