I have simple check
$(document).ready(function(){
    var pattern = /^[\.\/\w]$/;
    $('input[type="submit"]').click(function(){
        for (var i = 2; i < $('input[name="input_data[]"]').length; i++) {
            if(!pattern.test($('input:eq('+i+')').val())){
                console.log(pattern.test($('input:eq('+i+')').val()));
                console.log($('input:eq('+i+')').val());
                alert('Please doublecheck info.')
                return false;
            }
        }
    });
});
input:eq('+i+').val() is array of different file paths like /var/www/logs/log1, but something is wrong in pattern - sometime it fires just on good path, sometime skips /var/www/logs/log' (at the end ')
Example of list that should be passed:
/var/www/logs/log
/var/www/logs/log1
/var/www/logs/log2
192.168.1.1
200
 
    