Regular Expressions

import re

text = "Phone: 9876543210, Email: abc@gmail.com"

# search - पहला match
m = re.search(r'\d{10}', text)
if m:
    print(f"Phone: {m.group()}")

# findall - सब matches
nums = re.findall(r'\d+', text)
print(nums)   # ['9876543210']

# Email validate
def is_email(email):
    p = r'^[\w.+-]+@[\w-]+\.[a-zA-Z]{2,}$'
    return bool(re.match(p, email))

print(is_email("abc@gmail.com"))   # True
print(is_email("abc@gmail"))       # False

import re

# Numbers को *** से replace
text = "Card: 4111 1111 1111 1111"
safe = re.sub(r'\d', '*', text)
print(safe)   # Card: **** **** **** ****

# Extra spaces हटाना
text2 = "Hello    World    Python"
clean = re.sub(r'\s+', ' ', text2)
print(clean)   # Hello World Python

# Split करना
data = "राम,श्याम;गीता|मोहन"
parts = re.split(r'[,;|]', data)
print(parts)