Re: [boost] [regex] specify parenthesis

Lorenzo Bettini wrote:

I'll see whether this technique makes my regular expressions harder to read than a simple copy and paste solution.

I thought there might be a syntax for it because I read in the regex documentation, in the section "Character classes that are supported by Unicode Regular Expressions" these syntaxes

Ps Open Punctuation Pe Close Punctuation

and I thought they might be related (by the way, I actually did not understand what they're for, since there's no example).

[[:Ps:]] matches any opening punctuation [[:Pe:]] matches any closing punctuation Exactly what that means is defined by the Unicode std, and these are only supported by u32regex when Boost.Regex is built with ICU support enabled. John.