Name validation using IGNORECASE in Python Regex

# Python program to validate name using IGNORECASE in RegEx

 
# Import re-batch

import re

def validating_name (name):

# RegexObject = re.compile (Regular expression, flag)

# Compiles a regular expression pattern into a regular expression object

  regex_name = re. compile (r ’^ (Mr. | Mrs. | Ms.) ([az] +) ([az] +) * ([az] +) * $’ , 

re.IGNORECASE)

# RegexObject matches the desired

# string using search function

# If a match is found, search () returns

# MatchObject Instance

  # If no match is found, None is returned

  res = regex_name.search (name)

# If a match is found, the string is valid

if res: print ( "Valid" )

# If no match is found, the string is invalid

  else : print ( " Invalid " )

  
Driver code

validating_name ( ’ Mr. Albus Severus Potter’ )

validating_name ( ’Lily and Mr. Harry Potter’ )

validating_name ( ’Mr. Cedric’ )

validating_name ( ’Mr. sirius black’ )