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Answer: How do I remove control characters?

by tachyon (Chancellor)
on May 08, 2002 at 08:52 UTC ( #164953=categorized answer: print w/replies, xml ) Need Help??

Q&A > regular expressions > How do I remove control characters? - Answer contributed by tachyon

tr/// is better but all you needed to make your pseudocode real perl code was:

s/[^\040-\176]/ /g

Note that the control chars are \000 - \037 so these are perhaps more direct:

tr/\000-\037/ /; # best option for speed s/[\000-\037]/ /g # but this still works

Note chr 32 dec 040 octal is the space so you were double spacing your spaces by starting at \041

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