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validator-standalone.js
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validator-standalone.js
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(function(window) {
function validator() {
var _validator = {},
settings = {
errored_input_classname: "errored",
error_text_classname: "input-error",
error_text_data_attribute: "data-error-text"
};
_validator.checkForm = function(form, settings_override) {
if(settings_override) {
settings = Object.assign(settings, settings_override);
}
this.resetForm(form);
var errorsFound = false,
requiredInputs = form.querySelectorAll("input[required], textarea[required], select[required]"),
re = email_regex = /(?!.*\.{2})^([a-z\d!#$%&'*+\-\/=?^_`{|}~\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]+(\.[a-z\d!#$%&'*+\-\/=?^_`{|}~\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]+)*|"((([ \t]*\r\n)?[ \t]+)?([\x01-\x08\x0b\x0c\x0e-\x1f\x7f\x21\x23-\x5b\x5d-\x7e\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]|\\[\x01-\x09\x0b\x0c\x0d-\x7f\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))*(([ \t]*\r\n)?[ \t]+)?")@(([a-z\d\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]|[a-z\d\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF][a-z\d\-._~\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]*[a-z\d\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])\.)+([a-z\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]|[a-z\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF][a-z\d\-._~\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]*[a-z\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])\.?$/i;
for (var i = 0; i < requiredInputs.length; i++) {
var input = requiredInputs[i],
val = input.value;
if (!val) {
this.createError(input);
errorsFound = true;
} else if (input.type === "email" && re.test(val) === false) {
this.createError(input);
errorsFound = true;
}
}
if (errorsFound) {
return false;
}
return true;
};
_validator.createError = function(input) {
var errorMessage = input.getAttribute(settings.error_text_data_attribute),
errorMessageNode = document.createElement("span");
input.classList.add(settings.errored_input_classname);
errorMessageNode.classList.add(settings.error_text_classname);
errorMessageNode.innerText = errorMessage;
// Insert error message directly after the input element
input.parentNode.insertBefore(errorMessageNode, input.nextSibling);
};
_validator.resetForm = function(form) {
var erroredInputs = form.querySelectorAll("." + settings.errored_input_classname),
errorMessageNodes = form.querySelectorAll("." + settings.error_text_classname);
for (var j = 0; j < erroredInputs.length; j++) {
var input = erroredInputs[j];
input.classList.remove(settings.errored_input_classname);
}
for (var k = 0; k < errorMessageNodes.length; k++) {
var errorMessageNode = errorMessageNodes[k];
errorMessageNode.parentNode.removeChild(errorMessageNode);
}
};
return _validator;
}
if (typeof (window.validator) === 'undefined') {
window.validator = validator();
}
})(window);