REGULAR EXPRESSION EXAMPLES BY NEEDS

Addresses //Address: State code (US)‘/\\b(?:A[KLRZ]|C[AOT]|D[CE]|FL|GA|HI|I[ADLN]|K[SY]|LA|M[ADEINOST]|N[CDEHJMVY]|O[HKR]|PA|RI|S[CD]|T[NX]|UT|V[AT]|W[AIVY])\\b/’ //Address: ZIP code (US)‘\b[0-9]{5}(?:-[0-9]{4})?\b’   Columns//Columns: Match a regex starting at a specific column on a line.‘^.{%SKIPAMOUNT%}(%REGEX%)’ //Columns: Range of characters on a line, captured into backreference 1//Iterate over all matches to extract a column of text from a file//E.g. to grab the characters in colums 8..10, set SKIPAMOUNT to…

REGULAR EXPRESSION EXAMPLES BY NEEDS

Passwords //Password complexity//Tests if the input consists of 6 or more letters, digits, underscores and hyphens.//The input must contain at least one upper case letter, one lower case letter and one digit.‘\A(?=[-_a-zA-Z0-9]*?[A-Z])(?=[-_a-zA-Z0-9]*?[a-z])(?=[-_a-zA-Z0-9]*?[0-9])[-_a-zA-Z0-9]{6,}\z’ //Password complexity//Tests if the input consists of 6 or more characters.//The input must contain at least one upper case letter, one lower case…

Validate Input Using Regular Expressions

Problem :You need to validate that user input or data read from a file has the expected structure and content.For example, you want to ensure that a user enters a valid IP address, telephone number, or e-mailaddress.Solution :Use regular expressions to ensure that the input data follows the correct structure and contains onlyvalid characters for…