Re: [boost] [xpressive] Does '_' match newlines?

Subject: Re: [boost] [xpressive] Does '_' match newlines?
From: Eric Niebler (eric_at_[hidden])
Date: 2012-03-19 18:55:14

On 3/19/2012 3:21 PM, Robert Dailey wrote:
> I have the following static regex:
> 
>     sregex filename_re =
>         icase("Content-Disposition:") >> -*_ >> "filename=" >> (s2=-+_) >>
> ';'
>         ;
> 
> I want the "*_" part to also match newline characters. I didn't see any
> flag to turn this on or off. Is this on by default?

It always matches exactly one character, including newlines. If you want
to match one character that is not a newline ('\n'), use ~_n. To match
any one character that is not a logical new line ('\r', '\n', "\r\n",
others), use ~_ln.

HTH,

-- 
Eric Niebler
BoostPro Computing
http://www.boostpro.com