[Javascript] RegEx for Password w/ spl rules

[allard schripsema]

Hi Amit,

let me have a shot at this... (lets see if i can impress the masters :-)

For the format validation i believe you´ll need 2 regexps
you can use for validation 3 and 4  something like : 
/[^a-z0-9A-Z at ._] |([0-9a-zA-Z])\1{3,}/ (<-don´t know if this works :-)
"if not any of these or  repeat a char or number 3 or more times...." then error
and for 2 and 3 
/(.*[a-zA-Z].*[0-9].*)|(.*[0-9].*[a-zA-Z].*)/      two groups to have the situations num char and char num....
"If any-no-thing char any-no-thing number any-no-thing  OR any-no-thing number any-no-thing char any-no-thing then OK

for size you can use /^.{8,24}/ (anything , repeated 8 to 24 times)


Hope this is any help...
Allard

  ----- Original Message ----- 
  From: AMIT UCHAT 
  To: [JavaScript List] 
  Sent: Tuesday, June 29, 2004 1:33 PM
  Subject: [Javascript] RegEx for Password w/ spl rules


  Hi 
  I have been trying to Develop RegEx for a Password authentication with following rules:
  1) Must be between 8 - 24 characters
  2) Should have atleast 1 digit
  3) Should have atleast 1 Alphabatic Character
  3) Valid characters are [a-z0-9A-Z at ._]
  4) Any Characters cannot repeat more then thrice e.g. Password is "mynaaaame1" is      
     invalid because character 'a' repeated more then thrice consecutively.

  Rule # 1 is taken care of in password textbox by limiting textbox sixe with min=8 and max=24.

  Rule # 2 & 3: ^[a-z0-9A-Z at ._]+$

  Rule # 4: How do I apply it to ^[a-z0-9A-Z at ._]+$ RegEx?

  Any help/Hints/Direction be much appereciated.

  Adios,
  Amit










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