fork(7) download 
  1. import re
  2. rx = r"('[^'\\]*(?:\\.[^'\\]*)*')|\b{0}\b"
  3. s = r"""
  4.     var foe = 10;
  5. 	foe = "";
  6. 	dark_vador = 'bad guy'
  7. 	foe = ' I\'m your father, foe ! '
  8. 	bar = thingy + foe"""
  9. toReplace = "foe"
  10. res = re.sub(rx.format(toReplace), lambda m: m.group(1) if m.group(1) else 'NEWORD', s)
  11. print(res)
  12.  
Success #stdin #stdout 0s 9024KB
comments (?)
stdin 
Standard input is empty
stdout 
    var NEWORD = 10;
	NEWORD = "";
	dark_vador = 'bad guy'
	NEWORD = ' I\'m your father, foe ! '
	bar = thingy + NEWORD
https://ideone.com/ZkooXP
language:
Python (cpython 2.7.16)
created:
7 years ago
visibility:
secret

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