kc3-lang/libxkbcommon

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• Hash : cdafba4f
  Author :
  Date : 2024-09-24T15:23:16
  

  rules: Add support for index ranges
  
  There is a lot of repetition in the current rules files provided by
  xkeyboard-config, because the MLVO mappings need to match on the exact
  layout/variant index. This also prevents to increase the number of
  maximum groups, because it does not scale.
  
  We introduces the following new special layout/variant indexes:
  - “single”: matches a single layout; same as with no index.
  - “first”: matches the first layout/variant, no matter how many layouts
    are in the RMLVO configuration. It allows to merge `layout` and
    `layout[1]` patterns.
  - “later”: matches all but the first layout. This is an index range.
  - “any”: matches layout at any position. This is an index range.
  
  We also introduces the new `%i` expansion, which correspond to the index
  of the matched layout in a mapping with an index range. Example:
  
      layout[later] = symbols
      my_layout     = +my_symbols:%i
      *             = +%l[%i]:%i
  
  Let’s have a look at concrete examples from xkeyboard-config:
  
      ! model     layout     = symbols
        *         *          = pc+%l%(v)
      ! model     layout[1]  = symbols
        *         *          = pc+%l[1]%(v[1])
      ! model     layout[2]  = symbols
        *         *          = +%l[2]%(v[2])
      ! model     layout[3]  = symbols
        *         *          = +%l[3]%(v[3])
      ! model     layout[4]  = symbols
        *         *          = +%l[4]%(v[4])
  
      ! layout    option     = symbols
        *         grp:toggle = +group(toggle)
      ! layout[1] option     = symbols
        *         grp:toggle = +group(toggle):1
      ! layout[2] option     = symbols
        *         grp:toggle = +group(toggle):2
      ! layout[3] option     = symbols
        *         grp:toggle = +group(toggle):3
      ! layout[4] option     = symbols
        *         grp:toggle = +group(toggle):4
  
  With this commit we can now simplify it into:
  
      ! model    layout[first] = symbols
        *        *             = pc+%l[%i]%(v[%i])
      ! model    layout[later] = symbols
        *        *             = +%l[%i]%(v[%i]):%i
  
      ! layout[any] option     = symbols
        *           grp:toggle = +group(toggle):%i
  
  The latter rule will work even if we increase XKB_MAX_GROUPS, whereas
  the former would require to add the missing entries for the new groups.
  
  In order to maintain consistent rules, we now disallow layout and
  variant to have different indexes. For example, the following mapping
  are now invalid:
  - layout variant[1]
  - layout[1] variant[2]
  - layout[1] variant
  - layout[first] variant[1]
  - layout[first] variant
  - layout variant[any]
  - etc.
  

• Files

• .editorconfig
• .github/
• .pre-commit-config.yaml
• .uncrustify.cfg
• LICENSE
• NEWS.md
• PACKAGING
• README.md
• bench/
• changes/
• data/
• doc/
• fuzz/
• include/
• meson.build
• meson_options.txt
• scripts/
• src/
• test/
• tools/
• towncrier.toml
• xkbcommon-x11.map
• xkbcommon.map
• xkbregistry.map

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• Git HTTP	https://git.kmx.io/kc3-lang/libxkbcommon.git
  Git SSH	git@git.kmx.io:kc3-lang/libxkbcommon.git
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  Description	keymap handling library for toolkits and window systems Upstream Homepage Github Fork Github
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