Re: What are AST Macros?

[Rory McGuire]

On Sun, 11 Jul 2010 21:55:30 +0200, Philippe Sigaud <philippe.sig...@gmail.com> wrote: On Sun, Jul 11, 2010 at 18:58, Rory McGuire <rmcgu...@neonova.co.za> wrote: On Sun, 11 Jul 2010 15:29:36 +0200, Michel Fortin <michel.for...@michelf.com> wrote:        int num = 1;        string result = substitute!"Number: $num";        assert(result == "Number: 1"); someone already made something like that, I forget where it was. Its old now. Doesn't Format (in std.metastrings) cover part of this? string result = Format!("Numbers: %s", to!string(num)); I remember finding it cumbersome to use. For one, it could easily take any type for argument, and call to!string on them internally. Why bothering me with this? But maybe I wasn't using it the right way. Hmm, I think what I'd like is some numbered substituting scheme: string result = Substitute!("static if (is (typeof(%1) t == %2!U, U)) {                                                          alias U Result;                                                     else                                                         alias typeof(%1) Result;",                                                    a,b); I agree with Rory than someone already did something similar. But I guess now it can be done with CTFE on strings. A CT replace. Philippe I think I found what I was thinking of (not sure its the same one): http://www.digitalmars.com/d/archives/digitalmars/D/PHP-style_embedded_variables_print_statements_54053.html -Rory