diff options
Diffstat (limited to 'src/util/genkeymap.py')
| -rwxr-xr-x | src/util/genkeymap.py | 40 |
1 files changed, 36 insertions, 4 deletions
diff --git a/src/util/genkeymap.py b/src/util/genkeymap.py index d38552eb4..ff5ff0a87 100755 --- a/src/util/genkeymap.py +++ b/src/util/genkeymap.py @@ -171,6 +171,11 @@ class KeyLayout(UserDict[KeyModifiers, Sequence[Key]]): """Basic shifted keyboard layout""" return self[KeyModifiers.SHIFT] + @property + def altgr(self): + """AltGr keyboard layout""" + return self.get(KeyModifiers.ALTGR, self.unshifted) + @classmethod def load(cls, name: str) -> KeyLayout: """Load keymap using 'loadkeys -b'""" @@ -278,6 +283,7 @@ class KeymapKeys(UserDict[str, str]): self.ascii_name(source), self.ascii_name(target) ) for source, target in self.items() + if ord(source) & ~BiosKeyLayout.KEY_PSEUDO != ord(target) ) + '\t{ 0, 0 }\n}' @@ -301,13 +307,12 @@ class Keymap: raw = {source: self.target[key.modifiers][key.keycode].ascii for source, key in self.source.inverse.items()} # Eliminate any null mappings, mappings that attempt to remap - # the backspace key, or mappings that would become identity - # mappings after clearing the high bit + # the backspace key, or identity mappings table = {source: target for source, target in raw.items() if target and ord(source) != 0x7f and ord(target) != 0x7f - and ord(source) & ~BiosKeyLayout.KEY_PSEUDO != ord(target)} + and source != target} # Recursively delete any mappings that would produce # unreachable alphanumerics (e.g. the "il" keymap, which maps # away the whole lower-case alphabet) @@ -327,6 +332,28 @@ class Keymap: (unshifted, shifted)) return KeymapKeys(dict(sorted(table.items()))) + @property + def altgr(self) -> KeymapKeys: + """AltGr remapping table""" + # Construct raw mapping from source ASCII to target ASCII + raw = {source: self.target.altgr[key.keycode].ascii + for source, key in self.source.inverse.items() + if key.modifiers == KeyModifiers.NONE} + # Identify printable keys that are unreachable via the basic map + basic = self.basic + unmapped = set(x for x in basic.keys() + if x.isascii() and x.isprintable()) + remapped = set(basic.values()) + unreachable = unmapped - remapped + # Eliminate any null mappings, mappings for unprintable + # characters, or mappings for characters that are reachable + # via the basic map + table = {source: target for source, target in raw.items() + if source.isprintable() + and target + and target in unreachable} + return KeymapKeys(dict(sorted(table.items()))) + def cname(self, suffix: str) -> str: """C variable name""" return re.sub(r'\W', '_', (self.name + '_' + suffix)) @@ -336,6 +363,7 @@ class Keymap: """Generated source code""" keymap_name = self.cname("keymap") basic_name = self.cname("basic") + altgr_name = self.cname("altgr") code = textwrap.dedent(f""" /** @file * @@ -352,12 +380,16 @@ class Keymap: /** "{self.name}" basic remapping */ static struct keymap_key {basic_name}[] = %s; + /** "{self.name}" AltGr remapping */ + static struct keymap_key {altgr_name}[] = %s; + /** "{self.name}" keyboard map */ struct keymap {keymap_name} __keymap = {{ \t.name = "{self.name}", \t.basic = {basic_name}, + \t.altgr = {altgr_name}, }}; - """).strip() % self.basic.code + """).strip() % (self.basic.code, self.altgr.code) return code |