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path: root/Build/source/libs/lua53/TLpatches/patch-01-utf-8
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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 <ctype.h>
+
 #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))