Javascript正则表达式替换特殊字符

Question

如何用javascript中的这些符号"aceeisuuz"替换这些符号"ąčęėįšųūž"？我知道我需要使用正则表达式,但我无法制作模式.

这就是我所拥有的

var string = $(this).val();
        string = string.replace(/\s+/g, '-').toLowerCase();
        string = string.replace(/[^a-zA-Z0-9-]/g,'_');
        string = regExp something here...

    $("#custom_url").val(string);

更新:

在其他线程中找到此解决方案:

function convert_accented_characters(str){
    var conversions = new Object();
    conversions['ae'] = 'ä|æ|?';
    conversions['oe'] = 'ö|œ';
    conversions['ue'] = 'ü';
    conversions['Ae'] = 'Ä';
    conversions['Ue'] = 'Ü';
    conversions['Oe'] = 'Ö';
    conversions['A'] = 'À|Á|Â|Ã|Ä|Å|?|?|?|?|?';
    conversions['a'] = 'à|á|â|ã|å|?|?|?|?|?|ª';
    conversions['C'] = 'Ç|?|?|?|?';
    conversions['c'] = 'ç|?|?|?|?';
    conversions['D'] = 'Ð|?|?';
    conversions['d'] = 'ð|?|?';
    conversions['E'] = 'È|É|Ê|Ë|?|?|?|?|?';
    conversions['e'] = 'è|é|ê|ë|?|?|?|?|?';
    conversions['G'] = '?|?|?|?';
    conversions['g'] = '?|?|?|?';
    conversions['H'] = '?|?';
    conversions['h'] = '?|?';
    conversions['I'] = 'Ì|Í|Î|Ï|?|?|?|?|?|?';
    conversions['i'] = 'ì|í|î|ï|?|?|?|?|?|?';
    conversions['J'] = '?';
    conversions['j'] = '?';
    conversions['K'] = '?';
    conversions['k'] = '?';
    conversions['L'] = '?|?|?|?|?';
    conversions['l'] = '?|?|?|?|?';
    conversions['N'] = 'Ñ|?|?|?';
    conversions['n'] = 'ñ|?|?|?|?';
    conversions['O'] = 'Ò|Ó|Ô|Õ|?|?|?|?|?|Ø|?';
    conversions['o'] = 'ò|ó|ô|õ|?|?|?|?|?|ø|?|º';
    conversions['R'] = '?|?|?';
    conversions['r'] = '?|?|?';
    conversions['S'] = '?|?|?|Š';
    conversions['s'] = '?|?|?|š|?';
    conversions['T'] = '?|?|?';
    conversions['t'] = '?|?|?';
    conversions['U'] = 'Ù|Ú|Û|?|?|?|?|?|?|?|?|?|?|?|?';
    conversions['u'] = 'ù|ú|û|?|?|?|?|?|?|?|?|?|?|?|?';
    conversions['Y'] = 'Ý|Ÿ|?';
    conversions['y'] = 'ý|ÿ|?';
    conversions['W'] = '?';
    conversions['w'] = '?';
    conversions['Z'] = '?|?|Ž';
    conversions['z'] = '?|?|ž';
    conversions['AE'] = 'Æ|?';
    conversions['ss'] = 'ß';
    conversions['IJ'] = '?';
    conversions['ij'] = '?';
    conversions['OE'] = 'Œ';
    conversions['f'] = 'ƒ';

    for(var i in conversions){
        var re = new RegExp(conversions[i],"g");
        str = str.replace(re,i);
    }

    return str;
}