Paul Mensonides wrote:
On Mon, 27 Jun 2011 06:39:00 -0700, lcaminiti wrote:
Paul Mensonides wrote:
On Sun, 26 Jun 2011 11:00:16 -0400, Lorenzo Caminiti wrote:
Any comment on "pp comma-separated strings" support (of lack of thereof) in Boost.Preprocessor and/or CHAOS?
Boost.Preprocessor represents the lowest common denominator in what can be made portable across most C and C++ compilers. The main roadblock to more significant improvement (nowadays) is VC++'s horrible preprocessor.
By "comma-separated strings" I assume you mean something like: a, b, c? Boost.Preprocessor doesn't support them, of course. Chaos doesn't support them in that form (generally speaking, data structures containing open commas = bad design).
I am sorry, I meant to say "*space* separated strings" (not commas). These are tokens like `a b c` where a character can be a-z, A-Z, 0-9, or _ and all characters must be separated from each other by one or more spaces. Concatenation can be used to parse these "space separated strings", for example (leaving aside reentrancy issues, etc):
Chaos supports such data structures. E.g.
#include <chaos/preprocessor/algorithm/reverse.h> #include <chaos/preprocessor/generics/strip.h> #include <chaos/preprocessor/string/core.h>
CHAOS_PP_REVERSE( (CHAOS_PP_STRING) a b c d e f ) // (CHAOS_PP_STRING) f e d c b a
CHAOS_PP_STRING_TO_UPPER( CHAOS_PP_STRIP( CHAOS_PP_REVERSE( (CHAOS_PP_STRING) a b c d e f ) ) ) // F E D C B A
Yep, this is pretty cool :)) especially the `(pp-data-type) pp-data` syntax. Great job with Chaos!! What will it take to port the (splendid) Chaos library into Boost? "Just" fixing VC++ pp or more? Btw, are Chaos docs online in HTML form somewhere? --Lorenzo -- View this message in context: http://boost.2283326.n4.nabble.com/preprocessor-pp-strings-tp3613014p3630324... Sent from the Boost - Dev mailing list archive at Nabble.com.