Author :
Pierre Le Marre
Date :
2025-06-17 11:43:22
Hash :fab9d25b Message :rules: Add support for layout-specific options
Enabled specifying a layout index for each option, so that it applies
only if the layout matches. The layout index is specified by appending
immediately after the option name the `!` specifier delimiter and then
the layout index, in decimal form and 1-indexed.
Note that `!` was chosen instead of the usual `:` specifier delimiter,
because some options contains `:`, e.g. `grp:menu_toggle`. `!` *cannot*
clash with component names, because `!` is a token in the rules files
and thus cannot be used as in component names. It is also vaguely similar
to `:`, compared to e.g. `@` or `#`.
Example: given the following rules:
! layout[any] option = symbol
* opt1 = +s1:%i
l2 opt2 = +s2:%i
it may result in the following configurations:
| Layout | Option | Symbols |
| -------- | -------- | ------------ |
| `l1` | `opt1` | `+s1:1` |
| `l2` | `opt1` | `+s1:1` |
| `l1` | `opt2` | `` |
| `l2` | `opt2` | `+s2:1` |
| `l1,l2` | `opt1` | `+s1:1+s1:2` |
| `l1,l2` | `opt1!1` | `+s1:1` |
| `l1,l2` | `opt1!2` | `+s1:2` |
| `l1,l2` | `opt2` | `+s2:2` |
| `l1,l2` | `opt2!1` | `` |
| `l1,l2` | `opt2!2` | `+s2:2` |
Pierre Le Marre