Re: [Boost-users] Xpressive, symantic actions and combination enumeration

Lee Simpson wrote:

Hi,

First let me say. Awesome library and thanks for releasing it to the world.

Thanks!

I'm looking for a way to apply all the currently queued semantic actions _without_ turning off backtracking. So, as the manual suggests, keep manages to apply the queued actions but it also turns off backtracking.

<snip>

Any ideas?

You don't have to turn off backtracking for the whole regex. You can use keep() in a few strategic places within your regex as follows: sregex rx = ... >> keep(nil[ /*semantic action*/ ]) >> ...; "nil" always succeeds and consumes 0 characters. It's a way to cause the semantic action to execute immediately. Would something like that help you? -- Eric Niebler BoostPro Computing http://www.boostpro.com