On Fri, Feb 06, 2004 at 09:48:28AM +0000, Angus Leeming wrote:
> Here's an example of a simple parser written using Boost Spirit to
> read the data set below and assign the values using phoenix's lambda
> facility. It's extremely understandable IMO and has all the error
> handling power of a fully fledged parser. Which it is.
>
> Maybe one day lyxlex will die...
>
> Angus
>
>
>
> CONCENTRATION
>
> NNODES 5
>
> 1 5.5
> 2 6.5
> 3 5.0
> 4 4.5
> 5 4.0
>
> vector<double> & field = ...;
> string & field_name = ...;
>
> expression =
> f_str_p(var(self.field_name)) >>
> str_p("NNODES") >>
>
> uint_p[resize(var(field), arg1)] >>
>
> for_p(var(index) = 1,
> var(index) <= size(var(field)),
> var(index)++)
> [
> limit_d(cref(index), cref(index))[uint_p] >>
> real_p[var(field)[var(index)-1] = arg1]
> ];
Looks quite impressive.
Andre'
