regex to match word boundary beginning with special characters

Question

I have regex that matches words fine except if they contain a special character such as ~Query which is the name of a member of a C++ class. Need to use word boundary as sh

Answer 1

\b

is short for

(?:(?

If you want to treat ~ as a word character, change \w to [\w~].

(?:(?

Example usage:

my $word_char = qr/[\w~]/;
my $boundary  = qr/(?

If we know $match can only match something that starts and ends with a $word_char, we can simplify as follows:

my $word_char   = qr/[\w~]/;
my $start_bound = qr/(?

This is simple enough that we can inline.

$key =~ /(?