1.Regular Expression 1(NLP)

 

#pattern is any kind of string
import re
pattern="Ujjal"
ans=re.match(pattern,"Ujjal Dada")
print(ans)
if ans:
    print("Yes match")
else:
    print("Not match")

<re.Match object; span=(0, 5), match='Ujjal'>
Yes match

In [10]:

#Meta character (. dot) match any character
pattern="ujj.l"
ans=re.match(pattern,"ujjal")
if ans:
    print("Yes")
else :
    print("No")

Yes

In [13]:

# Character class set
# [aeiou] match any vowel
# [0-9] match any digit
# [a-z] match any lower case

pattern="[aeiou]"
if re.search(pattern,"Ujjal"):
    print("yes")
else:
    print("NO")
if re.search(pattern,"UJJAL"):
    print("yes")
else:
    print("NO")
patter="[0-9]"
if re.search(patter,"Ujjal1"):
    print("ace 1")
else:
    print("not found")

yes
NO
ace 1