Error in isVowel() in double_metaphone.js

[thomasfr]

Hi, i came across an error in isVowel(c) where c was undefined and so c.match throwed an error:

function isVowel(c) {
    if(!c) return false; // i added this as a workaround
    return c.match(/[aeiouy]/i);
}

This happened when isVowel gets called from handleH on line 223. I think the problem is that token[pos+1] is undefined.

    function handleH() {
        // keep if starts a word or is surrounded by vowels
        if((pos == 0 || isVowel(token[pos - 1])) && isVowel(token[pos + 1])) {
            add('H');
            pos++;
        }
    }

[chrisumbel]

ah, thanks. i'll address this shortly.