Replace utf8codepoint with Chris Wellons' utf8_decode

Code under a different license should be kept in a separate file. This
implemention is a single header file with ~65 lines, so it better fits this
requirement.

1 files changed, 0 insertions, 28 deletions

diff --git a/util.c b/util.c
index 973bc80..8f41d78 100644
--- a/util.c
+++ b/util.c
@@ -205,31 +205,3 @@ int r_mkdir(char *path)
 	return 0;
 }
 
-/* copied from sheredom's utf8.h (public domain) https://github.com/sheredom/utf8.h */
-
-void* utf8codepoint(const void* __restrict__ str, long* __restrict__ out_codepoint)
-{
-	 const char *s = (const char *)str;
-
-	 if (0xf0 == (0xf8 & s[0])) {
-		// 4 byte utf8 codepoint
-		*out_codepoint = ((0x07 & s[0]) << 18) | ((0x3f & s[1]) << 12) |
-				 ((0x3f & s[2]) << 6) | (0x3f & s[3]);
-		s += 4;
-	} else if (0xe0 == (0xf0 & s[0])) {
-		// 3 byte utf8 codepoint
-		*out_codepoint = ((0x0f & s[0]) << 12) | ((0x3f & s[1]) << 6) | (0x3f & s[2]);
-		s += 3;
-	} else if (0xc0 == (0xe0 & s[0])) {
-		// 2 byte utf8 codepoint
-		*out_codepoint = ((0x1f & s[0]) << 6) | (0x3f & s[1]);
-		s += 2;
-	} else {
-		// 1 byte utf8 codepoint otherwise
-		*out_codepoint = s[0];
-		s += 1;
-	}
-
-	return (void *)s;
-}
-