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我用正则表达式如下：反向正则表达式URL检测
/((?:(http|https|Http|Https|rtsp|Rtsp):\/\/(?:(?:[a-zA-Z0-9\$\-\_\.\+\!\*\'\(\)\,\;\?\&\=]|(?:\%[a-fA-F0-9]{2})){1,64}(?:\:(?:[a-zA-Z0-9\$\-\_\.\+\!\*\'\(\)\,\;\?\&\=]|(?:\%[a-fA-F0-9]{2})){1,25})?\@)?)?((?:(?:[a-zA-Z0-9][a-zA-Z0-9\-]{0,64}\.)+(?:(?:aero|arpa|asia|a[cdefgilmnoqrstuwxz])|(?:biz|b[abdefghijmnorstvwyz])|(?:cat|com|coop|c[acdfghiklmnoruvxyz])|d[ejkmoz]|(?:edu|e[cegrstu])|f[ijkmor]|(?:gov|g[abdefghilmnpqrstuwy])|h[kmnrtu]|(?:info|int|i[delmnoqrst])|(?:jobs|j[emop])|k[eghimnrwyz]|l[abcikrstuvy]|(?:mil|mobi|museum|m[acdghklmnopqrstuvwxyz])|(?:name|net|n[acefgilopruz])|(?:org|om)|(?:pro|p[aefghklmnrstwy])|qa|r[eouw]|s[abcdeghijklmnortuvyz]|(?:tel|travel|t[cdfghjklmnoprtvwz])|u[agkmsyz]|v[aceginu]|w[fs]|y[etu]|z[amw]))|(?:(?:25[0-5]|2[0-4][0-9]|[0-1][0-9]{2}|[1-9][0-9]|[1-9])\.(?:25[0-5]|2[0-4][0-9]|[0-1][0-9]{2}|[1-9][0-9]|[1-9]|0)\.(?:25[0-5]|2[0-4][0-9]|[0-1][0-9]{2}|[1-9][0-9]|[1-9]|0)\.(?:25[0-5]|2[0-4][0-9]|[0-1][0-9]{2}|[1-9][0-9]|[0-9])))(?:\:\d{1,5})?)(\/(?:(?:[a-zA-Z0-9\;\/\?\:\@\&\=\#\~\-\.\+\!\*\'\(\)\,\_])|(?:\%[a-fA-F0-9]{2}))*)?(?:\b|$)/gi
在要求访问者输入他们的网址形式。 它的工作原理，但对于我的textarea（味精）， 我想要相反的效果。
下面是我用JQ：
$.fn.goValidate = function() {
var $form = this,
$inputs = $form.find('input:text, input:password, textarea');
var validators = {
name: {
regex: /^[A-Za-z]{3,}$/
},
pass: {
regex: /(?=.*\d)(?=.*[a-z])(?=.*[A-Z]).{6,}/
},
email: {
regex: /^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/
},
phone: {
regex: /^[2-9]\d{2}-\d{3}-\d{4}$/
},
website: {
regex: /((?:(http|https|Http|Https|rtsp|Rtsp):\/\/(?:(?:[a-zA-Z0-9\$\-\_\.\+\!\*\'\(\)\,\;\?\&\=]|(?:\%[a-fA-F0-9]{2})){1,64}(?:\:(?:[a-zA-Z0-9\$\-\_\.\+\!\*\'\(\)\,\;\?\&\=]|(?:\%[a-fA-F0-9]{2})){1,25})?\@)?)?((?:(?:[a-zA-Z0-9][a-zA-Z0-9\-]{0,64}\.)+(?:(?:aero|arpa|asia|a[cdefgilmnoqrstuwxz])|(?:biz|b[abdefghijmnorstvwyz])|(?:cat|com|coop|c[acdfghiklmnoruvxyz])|d[ejkmoz]|(?:edu|e[cegrstu])|f[ijkmor]|(?:gov|g[abdefghilmnpqrstuwy])|h[kmnrtu]|(?:info|int|i[delmnoqrst])|(?:jobs|j[emop])|k[eghimnrwyz]|l[abcikrstuvy]|(?:mil|mobi|museum|m[acdghklmnopqrstuvwxyz])|(?:name|net|n[acefgilopruz])|(?:org|om)|(?:pro|p[aefghklmnrstwy])|qa|r[eouw]|s[abcdeghijklmnortuvyz]|(?:tel|travel|t[cdfghjklmnoprtvwz])|u[agkmsyz]|v[aceginu]|w[fs]|y[etu]|z[amw]))|(?:(?:25[0-5]|2[0-4][0-9]|[0-1][0-9]{2}|[1-9][0-9]|[1-9])\.(?:25[0-5]|2[0-4][0-9]|[0-1][0-9]{2}|[1-9][0-9]|[1-9]|0)\.(?:25[0-5]|2[0-4][0-9]|[0-1][0-9]{2}|[1-9][0-9]|[1-9]|0)\.(?:25[0-5]|2[0-4][0-9]|[0-1][0-9]{2}|[1-9][0-9]|[0-9])))(?:\:\d{1,5})?)(\/(?:(?:[a-zA-Z0-9\;\/\?\:\@\&\=\#\~\-\.\+\!\*\'\(\)\,\_])|(?:\%[a-fA-F0-9]{2}))*)?(?:\b|$)/gi
},
msg: {
regex: ????????????????????????????
},
};
var validate = function(klass, value) {
var isValid = true,
error = '';
if (!value && /required/.test(klass)) {
error = 'This field is required';
isValid = false;
} else {
klass = klass.split(/\s/);
$.each(klass, function(i, k){
if (validators[k]) {
if (value && !validators[k].regex.test(value)) {
isValid = false;
error = validators[k].error;
}
}
});
}
return {
isValid: isValid,
error: error
}
};
var showError = function($input) {
var klass = $input.attr('class'),
value = $input.val(),
test = validate(klass, value);
$input.removeClass('invalid');
$('#form-error').addClass('hide');
if (!test.isValid) {
$input.addClass('invalid');
if(typeof $input.data("shown") == "undefined" || $input.data("shown") == false){
$input.popover('show');
}
}
else {
$input.popover('hide');
}
};
$inputs.keyup(function() {
showError($(this));
});
$inputs.on('shown.bs.popover', function() {
$(this).data("shown",true);
});
$inputs.on('hidden.bs.popover', function() {
$(this).data("shown",false);
});
$form.submit(function(e) {
$inputs.each(function() { /* test each input */
if ($(this).is('.required') || $(this).hasClass('invalid')) {
showError($(this));
}
});
if ($form.find('input.invalid').length) { /* form is not valid */
e.preventDefault();
$('#form-error').toggleClass('hide');
}
});
return this;
};
我的表单现在显示一个弹出窗口，当用户没有输入正确的URL（co.uk/co.jp等排除...它是正则表达式xD） 但是对于我的textarea，我想显示一个弹出当他们输入一个URL（相反）
这是如何完成的？提前致谢！
[这可能会帮助你]（http://stackoverflow.com/questions/1538512/how-can-i-invert-a-regular-expression-in-javascript） – kei
谢谢，这帮了我:) – DeKnarf
为什么你接受tld喜欢'博物馆'的网站，但不适用于电子邮件？查看http://data.iana.org/TLD/tlds-alpha-by-domain.txt以获取有效的顶级域名列表。 – Toto