Re: oniguruma : can't get it to search for \ (backslash)

Dean Holdren wrote:
I can't seem to get Oniguruma to look for a single backslash, am I
doing anything wrong here?:

I should be able to escape the single with another:
irb(main):043:0> reg = Oniguruma::ORegexp.new('\\')
ArgumentError: Oniguruma Error: end pattern at escape

In a regex literal a backslash is a metacharacter, so you need two
slashes to match a slash: /\\/ But to insert two consecutive slashes in
a string to be compiled into a regex, you need four slashes: "\\\\"

Observe:

irb> reg = Oniguruma::ORegexp.new('\\\\')
=> /\\/

best,
Dan

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