diff -u lctype.h.orig lctype.h --- lctype.h.orig 2020-10-04 12:05:56.139893521 +0200 +++ lctype.h 2020-10-04 12:21:33.348948021 +0200 @@ -7,6 +7,8 @@ #ifndef lctype_h #define lctype_h +#include + #include "lua.h" @@ -53,9 +55,11 @@ /* ** 'lalpha' (Lua alphabetic) and 'lalnum' (Lua alphanumeric) both include '_' +** +** all utf-8 chars (greater than 0x7f) are always alphabetic */ -#define lislalpha(c) testprop(c, MASK(ALPHABIT)) -#define lislalnum(c) testprop(c, (MASK(ALPHABIT) | MASK(DIGITBIT))) +#define lislalpha(c) (isalpha(c) || (c) == '_' || (c) > 0x7f) +#define lislalnum(c) (isalnum(c) || (c) == '_' || (c) > 0x7f) #define lisdigit(c) testprop(c, MASK(DIGITBIT)) #define lisspace(c) testprop(c, MASK(SPACEBIT)) #define lisprint(c) testprop(c, MASK(PRINTBIT))