string.sub acting weird!

[Miiru]

I created a char named Drunkensteín (notice the í).

print (string.sub(UnitName("player"), 1, 12)) returns Drunkensteí

print (string.sub(UnitName("player"), 1, 11)) returns Drunkenste?

print (string.sub(UnitName("player"), 1, 10)) returns Drunkenste

Why? :S (No addons enabled, no font swapped)

[Rilgamon]

http://wowprogramming.com/snippets/U...re_stringsub_7

[SDPhantom]

Explaining the situation:

Text from the game is encoded in UTF-8, which is backwards compatible with standard ASCII text. Special characters not supported in standard ASCII are encoded with multiple bytes residing in the binary code space above 127. string.sub() works directly on the bytes within the string, not the characters. This means that a special Unicode chars will show errors if you cut off part of the encoding.

In your example, í takes up 2 bytes in the string. The middle line cuts off the last byte representing this character and produces the error shown.

[Miiru]

Thank you very much for that link and the explanation! I was already guessing that the problem was related to some encoding stuff.