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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#
# Script taken from http://stackoverflow.com/a/17579949/4070143 by inspectorG4dget
# to remove lines above and below certain string match.
# Minor modifications to read and write from stdin/stdout respectively
# and to remove some extra newlines getting added
import sys
import codecs
def remLines(delim, above, below):
WinReader = codecs.getreader('cp1252')
sys.stdin = WinReader(sys.stdin.buffer)
WinWriter = codecs.getwriter('cp1252')
sys.stdout = WinWriter(sys.stdout.buffer)
buff = []
line = sys.stdin.readline()
while line:
if delim in line.strip():
buff = []
for _ in range(below):
sys.stdin.readline()
else:
if len(buff) == above:
print(buff[0].replace('\r', '').replace('\n', ''))
buff = buff[1:]
buff.append(line)
line = sys.stdin.readline()
print(''.join(buff).strip())
if __name__ == "__main__":
if len(sys.argv) < 2:
print("Error: no search pattern specified")
else:
remLines(sys.argv[1], 2, 1)
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