Regular expressions and user-escaped characters

[Christopher Howard]

Hi, what do you do in a regular expression if you want to match a character, 
but not a the same character that has been escaped by the user. E.g., if I want 
my regular expression to look for ?\[ (ASCII 91), matching string "[" and "a[a" 
but not string "\\[" or "a\\[a", if you follow me. Is this possible with just a 
regular expression?

If not, what is a good workaround? I was wondering about, say, replacing all 
the escaped characters first with some uncommon character (like a control code) 
and then converting back afterwards. But then I suppose I would need to do a 
check for that uncommon character first.

-- 
📛 Christopher Howard
🚀 gemini://gem.librehacker.com
🌐 http://gem.librehacker.com

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