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// Do not change
pub const NUM_KEYS: usize = 30;
pub const ROW_LENGTH: usize = 10;
pub const KEY_CHARS: [char; NUM_KEYS] = [
'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S',
'T', 'U', 'V', 'W', 'X', 'Y', 'Z', '/', '.', ',', '\'',
];
pub const KEY_TO_FINGER: [usize; NUM_KEYS] = [
0, 1, 2, 3, 3, 4, 4, 5, 6, 7, 0, 1, 2, 3, 3, 4, 4, 5, 6, 7, 0, 1, 2, 3, 3, 4, 4, 5, 6, 7,
];
pub fn canonicalise(inp: char) -> Option<char> {
if inp.is_ascii_alphabetic() {
return Some(inp.to_ascii_uppercase());
} else {
match inp {
'.' => Some('.'),
'>' => Some('.'),
',' => Some(','),
'<' => Some(','),
'/' => Some('/'),
'?' => Some('/'),
'\'' => Some('\''),
'"' => Some('\''),
_ => None,
}
}
}
const fn build_lookup_table() -> [usize; 128] {
let mut result = [0; 128];
let mut i = 0;
while i < NUM_KEYS {
result[KEY_CHARS[i] as usize] = i;
i += 1;
}
return result;
}
pub const CHAR_TO_INDEX: [usize; 128] = build_lookup_table();
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