Regular Expression Validation form

Good JS authentication ~~~~~~~~~~~~~~~~~~~~~~~~~ use: Verify the format of the IP address input: STRIP:IP address return: False If True is returned by validation; */function IsIP (StrIP) {if ( IsNull (StrIP)) return false; var re=/^ (\d+) \. (\d+) \. (\d+) \. (\d+) $/g//match the regular expression of the IP address if (re.test (StrIP)) {if (regexp.$1 <256 && regexp.$2<256 && regexp.$3< && regexp.$4<256) return true; } return false; }/* Use: Check that the input string is empty or that all spaces are input: str Returns TRUE if all is empty, otherwise false */function IsNull (str) {if (str = = = "") to return; var Regu = "^[]+$"; var re = new RegExp (Regu); return Re.test (str); }/* Purpose: Check that the value of the input object conforms to the integer format input: string returned by str input: False If True is returned by validation */function Isinteger (str) {var regu =/^[-]{0,1}[0-9]{ 1,}$/; return Regu.test (str); }/* Use: Check that the input phone number is entered correctly: S: String returns: False if True is returned by validation */function Checkmobile (s) {var regu =/^[1][3][0-9]{9}$/; var Re = new RegExp (Regu); if (Re.test (s)) {return true;} else{return false;}} /* Purpose: Check if input string conforms to positive integer format input: S: string return: False If True is returned by validation */function Isnumber (s) {var regu = "^[0-9]+$ "; var re = new RegExp (Regu); if (S.search (re)! =-1) {return true;} else {return false;}} /* Purpose: Check if the input string is a numeric format with decimals, can be negative input: s: string return: False If True is returned by validation */function Isdecimal (str) {if (Isinteger (str)) retur n true; var re =/^[-]{0,1} (\d+) [\.] + (\d+) $/; if (Re.test (str)) {if (regexp.$1==0&&regexp.$2==0) return false; return true;} else {return false;}} /* Purpose: Check that the value of the input object conforms to the port number format input: string returned by str input: False If True is returned by validation */function isport (str) {return (Isnumber (str) &&amp ; str<65536); }/* Purpose: Check whether the value of the input object conforms to the e-mail format input: string returned by str input: False If True is returned by validation */function Isemail (str) {var myreg =/^[-_a-za-z0- 9][email protected] ([_a-za-z0-9]+\.) +[a-za-z0-9]{2,3}$/; if (Myreg.test (str)) return true; return false; }/* Purpose: Check that the input string conforms to the amount format defined as a positive number with decimals, up to three digits after the decimal point: S: string return: False If True is returned by validation */function Ismoney (s) {var regu = "^[ 0-9]+[\.] [0-9] {0,3}$ "; var re = new RegExp (Regu); if (Re.test (s)) {return true;} else {return false;}} /* Purpose: Check whether the input string is only in EnglishLetters and numbers and underscores input: s: String returns: True if verified, returns false */function Isnumberor_letter (s) {//Determines whether the number or letter var Regu = "^[0-9a-za-z\_ ]+$"; var re = new RegExp (Regu); if (Re.test (s)) {return true;} else{return false;}} /* Purpose: Check that the input string is only composed of English letters and numbers input: s: string return: False If True is returned by validation */function Isnumberorletter (s) {//Determines whether the number or the letter var Regu = "^[0-9a-za-z]+$"; var re = new RegExp (Regu); if (Re.test (s)) {return true;} else{return false;}} /* Purpose: Check that the input string is entered only by Chinese characters, letters, and Numbers: value: String return: False If True is returned by validation */function Ischinaornumborlett (s) {///Determine whether it is a Chinese character, letter, The number consists of var Regu = "^[0-9a-za-z\u4e00-\u9fa5]+$"; var re = new RegExp (Regu); if (Re.test (s)) {return true;} else{return false;}} /* Use: Determine if date input: Date: day; FMT: Date format returns: False if True is returned by validation */function isDate (date, FMT) {if (fmt==null) fmt= "YyyyMMdd "; var yindex = fmt.indexof ("yyyy"); if (yindex==-1) return false; var year = date.substring (yindex,yindex+4); var mindex = Fmt.indexof ("MM"); if (mindex==-1) return false; var month = Date.substriNg (mindex,mindex+2); var dindex = Fmt.indexof ("dd"); if (dindex==-1) return false; var day = date.substring (dindex,dindex+2); if (!isnumber (year) | | Year> "2100" | | year< "1900") return false; if (!isnumber (month) | | Month> "12" | | month< "") return false; if (Day>getmaxday (year,month) | | day< "") return false; return true; } function Getmaxday (year,month) {if (month==4| | month==6| | month==9| | month==11) return "30"; if (month==2) if (year%4==0&&year%100!=0 | | year%400==0) return "29"; else return "28"; return "31"; }/* Use: Character 1 to end input with string 2: str1: string; str2: String returned: False if True is returned by validation */function Islastmatch (STR1,STR2) {var index = s Tr1.lastindexof (STR2); if (str1.length==index+str2.length) return true; return false; }/* Use: Character 1 is entered as String 2: str1: string; str2: The contained string returns: False if True is returned by validation */function Isfirstmatch (STR1,STR2) {var index = Str1.indexof (STR2); if (index==0) return true; return false; }/* Use: Character 1 is a string containing 2 input: str1: string; str2: The contained string returns: False if True is returned by validation */FUnction IsMatch (STR1,STR2) {var index = Str1.indexof (STR2), if (index==-1) return false; return true;}/* Use: Check that the input start and end date is positive True, the rule is formatted correctly for two dates, and ends as expected >= start date input: StartDate: Start date, string endDate: End as expected, string return: false */function if returned by validation Checktwodate (startdate,enddate) {if (!isdate (startdate)) {alert ("Start date incorrect!"); return false;} else if (!isdate (endDate ) {alert ("Incorrect end date!"); return false;} else if (StartDate > EndDate) {alert ("Start date cannot be greater than End date!"); return false;} retur n true; }/* Use: Check that the input email format is entered correctly: Stremail: string return: False If True is returned by validation */function Checkemail (stremail) {//var Emailreg = /^[_a-z0-9][email protected] ([_a-z0-9]+\.) +[a-z0-9]{2,3}$/; var Emailreg =/^[\w-]+ (\.[ \w-]+) *@[\w-]+ (\.[ \w-]+) +$/; if (Emailreg.test (Stremail)) {return true;} else{alert ("The email address you entered is not in the correct format!) "); return false; }}/* Use: Check that the input phone number format is entered correctly: Strphone: string return: False If True is returned by validation */function Checkphone (strphone) {var phoneregwit Harea =/^[0][1-9]{2,3}-[0-9]{5,10}$/; var Phoneregnoarea =/^[1-9]{1}[0-9]{5,8}$/; var prompt = "The phone number you entered is incorrect!" if (Strphone.length > 9) {if (Phoneregwitharea.test (Strphone)) {return true;} else{alert (prompt); return false;}} else{if (phoneregnoarea.test (Strphone)) {return true;} else{alert (prompt); return false;}} }/* Purpose: Check the number of checkboxes selected Enter: Checkboxid: String return: Returns the number of selected in this check box */function Checkselect (CHECKBOXID) {var check = 0; var i=0; I F (document.all (CHECKBOXID). length > 0) {for (i=0; i 127) TotalCount + = 2; else totalcount++; } return totalcount; } function Getfirstselectedvalue (CHECKBOXID) {var value = null; var i=0; if (document.all (CHECKBOXID). length > 0) {F or (i=0; i 0) {for (i=0; i 0) {for (i=0; i 0) {for (i=0; i "2100" | | year< "1900") return false; var month = value.substring (4,6); if (month> "| | | month<") return false; var day = value.substring (6,8); if (Day>getmaxday (year,month) | | day< "") return false; return true; }/* Use: Check that the input start and end date is correct, that the rule is formatted correctly for two dates or is empty, and that the ending date >= the starting Date input: StartDate: Start date, string endDate: End Date, string return: If True is returned by validation, otherwise returns false */function Checkperiod (startdate,enddate) {if (!checkdate (startdate)) {alert ("Start date incorrect!"); return false;} else if (!checkdate (endDate)) {alert ("End date incorrect!"); return false;} else if (StartDate > EndDate) {alert ("Start date cannot be greater than terminating Date! "); return false; } return true; }/* Use: Check that the security code is entered correctly: Seccode: Security Code return: False If True is returned by validation */function Checkseccode (seccode) {if (Seccode.length! = 6) {alert ("Security code should be 6 bits"); return false;} if (!isnumber (Seccode)) {alert ("Security code can contain only numbers"); return false;} return true; }/**************************************************** Function:ctrim (sinputstring,itype) Description: A function of string de-whitespace Parameters:itype:1= GoDrop the space to the left of the string 2= Remove the space to the left of the string 0= remove the left and right spaces of the string return value: A string that strips away the space ****************************************************/ function Ctrim (sinputstring,itype) {var stmpstr = '; var i =-1; if (IType = = 0 | | iType = 1) {while (stmpstr = = ') { ++i; Stmpstr = Sinputstring.substr (i,1); } sinputstring = sinputstring.substring (i); if (IType = = 0 | | iType = = 2) {stmpstr = "; i = sinputstring.length; while (stmpstr = =") {-I; stmpstr = Sinputstri Ng.substr (i,1); } sinputstring = Sinputstring.substring (0,i+1); } return sinputstring; }/* var regu =/\w*[0-9]+\w*$/; var regu2 =/\w*[a-za-z]+\w*$/; var newpassword = $ ("#ipt_initial_password"). Val (). replace (/[]/g, ""); if (!regu.test (newpassword) | |!regu2.test (newpassword)) {showmessage ("Password must contain letters and numbers!", "system hint"); $ ("#ipt_initial_ Password "). AddClass (" error "); $ ("#ipt_initial_password"). focus (); return false; }

Regular expression Validation form