BACKCHAR          798 ext/pcre/pcrelib/pcre_internal.h #define BACKCHAR(eptr) while((*eptr & 0xc0) == 0x80) eptr--
BACKCHAR          894 ext/pcre/pcrelib/pcre_internal.h #define BACKCHAR(eptr) if ((*eptr & 0xfc00) == 0xdc00) eptr--
BACKCHAR          956 ext/pcre/pcrelib/pcre_internal.h #define BACKCHAR(eptr) do { } while (0)