Re: [Boost-users] [xpressive] static expression adding

Jan Boehme wrote:

Hi,

is it possible to add an expression to an already existing expression object?

Something like:

sregex re = '$' >> +_d >> '.' >> _d >> _d;

replace by:

sregex re = '$'; re += +_d; re += '.' >> _d >> _d;

My attempts did result in compile time troubles.

You can nest regular expressions to get the same behavior. sregex re0 = as_xpr('$'); sregex re1 = re0 >> +_d; sregex re2 = re1 >> '.' >> _d >> _d; You lose most of the benefits of static regular expressions when you do this, though. HTH, -- Eric Niebler BoostPro Computing http://www.boostpro.com