Re: [PATCH/RFC 1/1] Auto diff of UTF-16 files in UTF-8

tboegi@web.de:

+static inline int buffer_has_utf16_bom(const void *buf, size_t len) {
+  const unsigned char *text = (unsigned char *)buf;
+  if (!text ||  len < 2)
+    return 0;
+  if (text[0] == 0xff && text[1] == 0xfe)
+    return 1;
+  if (text[0] == 0xfe && text[1] == 0xff)
+    return 1;
+  return 0;
+}

This would also match a UTF-32LE BOM, not that I think anyone would 
actually use that for text files, but it might be worth adding a test 
for that, just in case?

   if (text[0] == 0xff && text[1] == 0xfe)
     return len < 4 || (text[2] != 0 && text[3] != 0);

-- 
\\// Peter - http://www.softwolves.pp.se/