locutus/esm/php/_helpers/_ctypePattern.js

Locutus other languages' standard libraries to JavaScript for fun and educational purposes

import { getPhpLocaleGroup } from "./_phpRuntimeState.js";
const defaultCtypePatterns = {
    an: /^[A-Za-z\d]+$/g,
    al: /^[A-Za-z]+$/g,
    // biome-ignore lint/suspicious/noControlCharactersInRegex: intentional for LC_CTYPE control character class
    ct: /^[\u0000-\u001F\u007F]+$/g,
    dg: /^[\d]+$/g,
    gr: /^[\u0021-\u007E]+$/g,
    lw: /^[a-z]+$/g,
    pr: /^[\u0020-\u007E]+$/g,
    pu: /^[\u0021-\u002F\u003A-\u0040\u005B-\u0060\u007B-\u007E]+$/g,
    sp: /^[\f\n\r\t\v ]+$/g,
    up: /^[A-Z]+$/g,
    xd: /^[A-Fa-f\d]+$/g,
};
export function getCtypePattern(key) {
    const ctypeGroup = getPhpLocaleGroup('LC_CTYPE', 'LC_CTYPE');
    if (!ctypeGroup) {
        const fallbackPattern = defaultCtypePatterns[key];
        return fallbackPattern ? new RegExp(fallbackPattern) : undefined;
    }
    const pattern = ctypeGroup[key];
    if (pattern instanceof RegExp) {
        return new RegExp(pattern);
    }
    const fallbackPattern = defaultCtypePatterns[key];
    return fallbackPattern ? new RegExp(fallbackPattern) : undefined;
}