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#!/usr/bin/env python3
# Challenge 110
#
# TASK #1 - Valid Phone Numbers
# Submitted by: Mohammad S Anwar
# You are given a text file.
#
# Write a script to display all valid phone numbers in the given text file.
#
# Acceptable Phone Number Formats
# +nn nnnnnnnnnn
# (nn) nnnnnnnnnn
# nnnn nnnnnnnnnn
# Input File
# 0044 1148820341
# +44 1148820341
# 44-11-4882-0341
# (44) 1148820341
# 00 1148820341
# Output
# 0044 1148820341
# +44 1148820341
# (44) 1148820341
import fileinput
import sys
import re
def is_valid_phone(phone):
return re.match(r"^\s*(?:\+\d{2}|\(\d{2}\)|\d{4})\s+\d{10}\s*$", phone)
def filter_input():
for phone in fileinput.input():
phone = phone.strip()
if is_valid_phone(phone):
print(phone)
filter_input()
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