locutus/esm/php/strings/strtok.js

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

import { getPhpRuntimeString, setPhpRuntimeEntry } from "../_helpers/_phpRuntimeState.js";
export function strtok(str, tokens) {
    //  discuss at: https://locutus.io/php/strtok/
    // original by: Brett Zamir (https://brett-zamir.me)
    //      note 1: Use tab and newline as tokenizing characters as well
    //   example 1: var $string = "\t\t\t\nThis is\tan example\nstring\n"
    //   example 1: var $tok = strtok($string, " \n\t")
    //   example 1: var $b = ''
    //   example 1: while ($tok !== false) {$b += "Word="+$tok+"\n"; $tok = strtok(" \n\t");}
    //   example 1: var $result = $b
    //   returns 1: "Word=This\nWord=is\nWord=an\nWord=example\nWord=string\n"
    if (typeof tokens === 'undefined') {
        tokens = str;
        str = getPhpRuntimeString('strtokleftOver', '');
    }
    if (str.length === 0) {
        return false;
    }
    if (tokens.includes(str.charAt(0))) {
        return strtok(str.substring(1), tokens);
    }
    let i = 0;
    for (; i < str.length; i++) {
        if (tokens.includes(str.charAt(i))) {
            break;
        }
    }
    setPhpRuntimeEntry('strtokleftOver', str.substring(i + 1));
    return str.substring(0, i);
}