String validation regex (used by cPanel)

validatorRules.js

var match_validators = {
    fullemailaddress: eval("/^([a-zA-Z0-9_'+*$%^&!.-])+[@+](([a-zA-Z0-9-])+.)+([a-zA-Z0-9:]{2,4})+$/"),
    emailcharplus: eval("/^([a-zA-Z0-9_'+.-])/"),
    emailaddress: /^[^\@]\@[^\.]\./,
    emailchars: /^[a-z0-9\_\-\@\.]+$/,
    email_localpart_chars: /^\w[\w-.+%]*/,
    email_localpart_chars_cap: /^[A-Za-z0-9\_\-\.]+$/,
    atsign: /\@/,
    notestsign: /\@/,
    hostname: /^((\*\.|[a-zA-Z0-9])([a-zA-Z0-9\-]{0,61}[a-zA-Z0-9])?\.)+[a-zA-Z]{2,6}$/,
    fqdn_domain: /^((\*\.|[a-zA-Z0-9])([a-zA-Z0-9\-]{0,61}[a-zA-Z0-9])?\.){2}[a-zA-Z]{2,6}$/,
    fullipaddr: /^(\d{1,3}\.){3}\d{1,3}$/,
    is_ipcidr_or_host: /^[a-z0-9\.\-\/]+$/,
    ipcidr: /^\d+\.\d+\.\d+\.\d+\/?\d*$/,
    host: /^[\w\.\-]+$/,
    wildhost: /^[\*\w\.\-]+$/,
    wildhostsql: /^[\%\w\.\-]+$/,
    unlimitedornum: /^[0-9]*$|^unlimited$/,
    numeric: /^[0-9]+$/,
    decimal_numeric: /^[-+]?[0-9]+(\.[0-9]+)?$/,
    decimal_numeric_unlimited: /^[-+]?[0-9]+(\.[0-9]+)?$|^unlimited$/,
    alphanum: /^[a-z0-9\_\-]+$/i,
    "start_www.": /^www[.]/i,
    jpg_gif_png_jpeg: /\.(gif|jpg|png|jpeg)$/,
    html: /\.(html)$/,
    spaces_dots_ats_fwdslashes_hyphens: /[\s\.\@\/\-]/,
    spaces_dots_ats_fwdslashes: /[\s\.\@\/]+/,
    two_dots: /[^\.]\.[^\.]\.[^\.]/,
    spaces_ats_fwdslashes: /[\s\@\/]+/,
    start_end_dashes: /(?:^[-]|[-]$)/,
    start_end_space: /(?:^[\s]|[\s]$)/,
    slashes_dots: /[\.\/\\]/,
    noascii0_255: /[\0\255]/,
    spaces: /\s+/,
    forwardslash: /\//,
    dot: /\./,
    empty: /^$/,
    start_end_dots: /(^[.]|[.]$)/,
    start_dot: /^\./,
    underscore: /\_/,
    protocol: /^\S+[:][/][/]/,
    only_spaces: /^\s+$/,
    ssl_chars: /^[\-\w\!\+\@\~\:]+$/,
    whole_nums: /^\d+$/,
    "1_9only": /^[1-9]$/
};