From: Mark Slagell <ms@...>
Date: 2001-11-03T07:57:28+09:00
Subject: [ruby-talk:24224] literal \0 in String#gsub replacement

Okay, I'm stuck on something seemingly trivial here. Is it possible for
'\0' to be a literal part of the replacement string in gsub? I mean,
without match data being substituted for it.

Say I want '[foo]' to be replaced with '\003foo', etc.

  "apple [cherry] lemon".gsub(/\[(.+?)\]/,'\003\1'

That substitutes for both the \0 and the \1, producing

  "apple [cherry]03cherry lemon"

as it should of course. How can I make the \0 literal and get:

  "apple \003cherry lemon"  

  Mark