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https://github.com/kovidgoyal/kitty
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8ffdf7d7ee
Add --allow-fallback option to the map command that controls shifted and ascii (alternate_key) fallback for individual key mappings. For non-Latin keyboard layouts, when the current layout key is non-ascii (codepoint > 127 and < 0xE000), the alternate_key from the base layout is used for matching if the mapping opts in via --allow-fallback=shifted,ascii. Default kitty bindings use --allow-fallback=shifted,ascii so they work out of the box with non-Latin layouts. User custom mappings default to --allow-fallback=shifted (preserving existing shifted_key behavior without ascii fallback). --allow-fallback=none disables all fallback for a mapping. Python side: parse_options_for_map() in options/utils.py handles flag parsing, ShortcutMapping uses it in __init__. get_shortcut() filters candidates by per-mapping allow_fallback. Go side: ParseMap() handles --allow-fallback, KeyAction stores AllowFallback, ShortcutTracker.Match passes it to matching. MatchesParsedShortcut defaults to shifted,ascii for hardcoded shortcuts. Migrated kittens (themes, command_palette, diff, choose_files) to use ShortcutTracker with configurable map entries. Tests added for Python (5 test methods) and Go (ParseMap + key matching).