-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi Documentation says that when using wide character strings with boost::wregex a character class like [[:alpha:]] depends on the system's implementation of iswalpha() function. My system seems to have a working implementation of iswalpha() function, but [[:alpha:]] still only seems to match ASCII alphabet characters. For example the following code: #define UNICODE #include #include #include #include int main() { regex_t r; setlocale(LC_ALL, "en_US.utf8"); regcomp(&r, L"^[[:alpha:]]$", REG_EXTENDED); printf("%d\n", iswalpha(L'A')); printf("%d\n\n", regexec(&r, L"A", 0, NULL, 0)); printf("%d\n", iswalpha(L'\x160')); printf("%d\n\n", regexec(&r, L"\x160", 0, NULL, 0)); printf("%d\n", iswalpha(L'1')); printf("%d\n", regexec(&r, L"1", 0, NULL, 0)); regfree(&r); return 0; } Returns 1 0 1 1 0 1 In the second pair, iswalpha() correctly recognizes Unicode "S WITH CARON" character, however regular expression with [[:alpha:]] doesn't match it. I'm using Debian GNU/Linux with Boost 1.33.1. I also tried a similar program using boost::wregex and std::iswalpha() classes instead of the POSIX interface with the same results. Can anyone give me some advice on what I'm doing wrong here? Thanks Tomaž Šolc -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFHPNZXsAlAlRhL9q8RAlymAKDktxV+FWCTvBEBKwMNfr9yus5rgQCfc3N1 WoCdr+9zgBSEXPORSLAJiUM= =18dB -----END PGP SIGNATURE-----