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From: Peng Yu <pengyu.ut@gmail.com>
Date: Sun, 23 May 2021 11:00:21 -0500
Message-ID: <CABrM6wnwGjcGNPDAWPBDX9eb+fgHj5=aZ0SATJOzKJYWM5KZ7g@mail.gmail.com>
Subject: How to specify a TAB in a regex and in a char class?
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Hi,

With REG_EXTENDED, I don't find that \t can be used as a TAB.

Is the only way to specify a TAB character in a regex is to type the
TAB character literally? Any other better way to specify a TAB
character in a regex? (Note, the regex string is read from some input.
I am not talking about the native C code, as a TAB can be typed as \t
in a C string.) Thanks.

-- 
Regards,
Peng