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| 1 2 3 4 5 6 7 8 9 | 57x 57x 1290x 57x 57x | import type {CharPredicate} from './types';
const LETTER_REGEX = /(\p{Letter}|\d)/u;
const WHITESPACE_REGEX = /\s/;
export const isLetter: CharPredicate<string> = (char: string) => LETTER_REGEX.test(char[0]);
export const isWhitespace: CharPredicate<string> = (char: string) => WHITESPACE_REGEX.test(char[0]);
export const isPunctuation: CharPredicate<string> = (char: string) => !isLetter(char) && !isWhitespace(char);
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