Re^3: RegExp substitution

1st substitute/([A-Z][a-z][\W][\b])/<userinput>/;

The critical thing to remember about [...] character classes is that most regex metacharacters are not meta-special inside them. Thus, [.] (which you have used elsewhere) matches a single '.' (period) character and [\b] matches a single backspace control-character. So the pattern above might be described as:

[A-Z] A single upper-case character; followed by
[a-z] A single lower-case character; followed by
[\W] A single character that is anything not matching a \w 'word' character (\W is a class onto itself, so no enclosing square brackets are needed); followed by
[\b] A single backspace control character.

Is any of that what you really wanted?

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Re^4: RegExp substitution by Keystone (Initiate) on Apr 11, 2014 at 07:19 UTC
Looking back I'm pretty sure that it is not, and having read your other posting directing me to the perl tutorials (less than 5 minutes in to reading them) I've discovered why my RegEx wasn't working as intended. I've posted my findings in a direct reply to that post.	[reply]