ref: dce28e58e492e5b4448451ddcbe948d9b104d859
dir: /sys/src/ape/lib/ap/gen/isalnum.c/
#include <ctype.h> #undef isalnum #undef isalpha #undef iscntrl #undef isdigit #undef isgraph #undef islower #undef isprint #undef ispunct #undef isspace #undef isupper #undef isxdigit int isalnum(int c){ return (_ctype+1)[c]&(_ISupper|_ISlower|_ISdigit); } int isalpha(int c){ return (_ctype+1)[c]&(_ISupper|_ISlower); } int iscntrl(int c){ return (_ctype+1)[c]&_IScntrl; } int isdigit(int c){ return (_ctype+1)[c]&_ISdigit; } int isgraph(int c){ return (_ctype+1)[c]&(_ISpunct|_ISupper|_ISlower|_ISdigit); } int islower(int c){ return (_ctype+1)[c]&_ISlower; } int isprint(int c){ return (_ctype+1)[c]&(_ISpunct|_ISupper|_ISlower|_ISdigit|_ISblank); } int ispunct(int c){ return (_ctype+1)[c]&_ISpunct; } int isspace(int c){ return (_ctype+1)[c]&_ISspace; } int isupper(int c){ return (_ctype+1)[c]&_ISupper; } int isxdigit(int c){ return (_ctype+1)[c]&_ISxdigit; }