Codice PHP:
// Title: Tigra Form Validator
// URL: [url]http://www.softcomplex.com/products/tigra_form_validator/[/url]
// Version: 1.2
// Date: 02/17/2005 (mm/dd/yyyy)
// Notes: Registration needed to use this script legally. Visit official site for details.
// regular expressions or function to validate the format
var re_dt = /^(\d{1,2})\-(\d{1,2})\-(\d{4})$/,
re_tm = /^(\d{1,2})\:(\d{1,2})\:(\d{1,2})$/,
a_formats = {
'alpha' : /^[a-zA-Z\.\-]*$/,
'alphanum': /^\w+$/,
'unsigned': /^\d+$/,
'integer' : /^[\+\-]?\d*$/,
'real' : /^[\+\-]?\d*\.?\d*$/,
'email' : /^[\w-\.]+\@[\w\.-]+\.[a-z]{2,4}$/,
'phone' : /^[\d\.\s\-]+$/,
'date' : function (s_date) {
// check format
if (!re_dt.test(s_date))
return false;
// check allowed ranges
if (RegExp.$1 > 31 || RegExp.$2 > 12)
return false;
// check number of day in month
var dt_test = new Date(RegExp.$3, Number(RegExp.$2-1), RegExp.$1);
if (dt_test.getMonth() != Number(RegExp.$2-1))
return false;
return true;
},
'time' : function validate_time(s_time) {
// check format
if (!re_tm.test(s_time))
return false;
// check allowed ranges
if (RegExp.$1 > 23 || RegExp.$2 > 59 || RegExp.$3 > 59)
return false;
return true;
}
},
a_messages = [
'No form name passed to validator construction routine',
'No array of "%form%" form fields passed to validator construction routine',
'Form "%form%" can not be found in this document',
'Incomplete "%n%" form field descriptor entry. "l" attribute is missing',
'Can not find form field "%n%" in the form "%form%"',
'Can not find label tag (id="%t%")',
'Can not verify match. Field "%m%" was not found',
'"%l%" is a required field',
'Value for "%l%" must be %mn% characters or more',
'Value for "%l%" must be no longer than %mx% characters',
'"%v%" is not valid value for "%l%"',
'"%l%" must match "%ml%"'
]
// validator counstruction routine
function validator(s_form, a_fields, o_cfg) {
this.f_error = validator_error;
this.f_alert = o_cfg && o_cfg.alert
? function(s_msg) { alert(s_msg); return false }
: function() { return false };
// check required parameters
if (!s_form)
return this.f_alert(this.f_error(0));
this.s_form = s_form;
if (!a_fields || typeof(a_fields) != 'object')
return this.f_alert(this.f_error(1));
this.a_fields = a_fields;
this.a_2disable = o_cfg && o_cfg['to_disable'] && typeof(o_cfg['to_disable']) == 'object'
? o_cfg['to_disable']
: [];
this.exec = validator_exec;
}
// validator execution method
function validator_exec() {
var o_form = document.forms[this.s_form];
if (!o_form)
return this.f_alert(this.f_error(2));
b_dom = document.body && document.body.innerHTML;
// check integrity of the form fields description structure
for (var n_key in this.a_fields) {
// check input description entry
this.a_fields[n_key]['n'] = n_key;
if (!this.a_fields[n_key]['l'])
return this.f_alert(this.f_error(3, this.a_fields[n_key]));
o_input = o_form.elements[n_key];
if (!o_input)
return this.f_alert(this.f_error(4, this.a_fields[n_key]));
this.a_fields[n_key].o_input = o_input;
}
// reset labels highlight
if (b_dom)
for (var n_key in this.a_fields)
if (this.a_fields[n_key]['t']) {
var s_labeltag = this.a_fields[n_key]['t'], e_labeltag = get_element(s_labeltag);
if (!e_labeltag)
return this.f_alert(this.f_error(5, this.a_fields[n_key]));
this.a_fields[n_key].o_tag = e_labeltag;
// normal state parameters assigned here
e_labeltag.className = 'tfvNormal';
}
// collect values depending on the type of the input
for (var n_key in this.a_fields) {
var s_value = '';
o_input = this.a_fields[n_key].o_input;
if (o_input.type == 'checkbox') // checkbox
s_value = o_input.checked ? o_input.value : '';
else if (o_input.value) // text, password, hidden
s_value = o_input.value;
else if (o_input.options) // select
s_value = o_input.selectedIndex > -1
? o_input.options[o_input.selectedIndex].value
: null;
else if (o_input.length > 0) // radiobuton
for (var n_index = 0; n_index < o_input.length; n_index++)
if (o_input[n_index].checked) {
s_value = o_input[n_index].value;
break;
}
this.a_fields[n_key]['v'] = s_value.replace(/(^\s+)|(\s+$)/g, '');
}
// check for errors
var n_errors_count = 0,
n_another, o_format_check;
for (var n_key in this.a_fields) {
o_format_check = this.a_fields[n_key]['f'] && a_formats[this.a_fields[n_key]['f']]
? a_formats[this.a_fields[n_key]['f']]
: null;
// reset previous error if any
this.a_fields[n_key].n_error = null;
// check reqired fields
if (this.a_fields[n_key]['r'] && !this.a_fields[n_key]['v']) {
this.a_fields[n_key].n_error = 1;
n_errors_count++;
}
// check length
else if (this.a_fields[n_key]['mn'] && String(this.a_fields[n_key]['v']).length < this.a_fields[n_key]['mn']) {
this.a_fields[n_key].n_error = 2;
n_errors_count++;
}
else if (this.a_fields[n_key]['mx'] && String(this.a_fields[n_key]['v']).length > this.a_fields[n_key]['mx']) {
this.a_fields[n_key].n_error = 3;
n_errors_count++;
}
// check format
else if (this.a_fields[n_key]['v'] && this.a_fields[n_key]['f'] && (
(typeof(o_format_check) == 'function'
&& !o_format_check(this.a_fields[n_key]['v']))
|| (typeof(o_format_check) != 'function'
&& !o_format_check.test(this.a_fields[n_key]['v'])))
) {
this.a_fields[n_key].n_error = 4;
n_errors_count++;
}
// check match
else if (this.a_fields[n_key]['m']) {
for (var n_key2 in this.a_fields)
if (n_key2 == this.a_fields[n_key]['m']) {
n_another = n_key2;
break;
}
if (n_another == null)
return this.f_alert(this.f_error(6, this.a_fields[n_key]));
if (this.a_fields[n_another]['v'] != this.a_fields[n_key]['v']) {
this.a_fields[n_key]['ml'] = this.a_fields[n_another]['l'];
this.a_fields[n_key].n_error = 5;
n_errors_count++;
}
}
}
// collect error messages and highlight captions for errorneous fields
var s_alert_message = '',
e_first_error;
if (n_errors_count) {
for (var n_key in this.a_fields) {
var n_error_type = this.a_fields[n_key].n_error,
s_message = '';
if (n_error_type)
s_message = this.f_error(n_error_type + 6, this.a_fields[n_key]);
if (s_message) {
if (!e_first_error)
e_first_error = o_form.elements[n_key];
s_alert_message += s_message + "\n";
// highlighted state parameters assigned here
if (b_dom && this.a_fields[n_key].o_tag)
this.a_fields[n_key].o_tag.className = 'tfvHighlight';
}
}
alert(s_alert_message);
// set focus to first errorneous field
if (e_first_error.focus && e_first_error.type != 'hidden' && !e_first_error.disabled)
eval("e_first_error.focus()");
// cancel form submission if errors detected
return false;
}
for (n_key in this.a_2disable)
if (o_form.elements[this.a_2disable[n_key]])
o_form.elements[this.a_2disable[n_key]].disabled = true;
return true;
}
function validator_error(n_index) {
var s_ = a_messages[n_index], n_i = 1, s_key;
for (; n_i < arguments.length; n_i ++)
for (s_key in arguments[n_i])
s_ = s_.replace('%' + s_key + '%', arguments[n_i][s_key]);
s_ = s_.replace('%form%', this.s_form);
return s_
}
function get_element (s_id) {
return (document.all ? document.all[s_id] : (document.getElementById ? document.getElementById(s_id) : null));
}
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