[Specific Question] Unicode: Code point value to UTF-8 Hex value (and vice versa)

[4ggr35510n 0]

As in topic. How can I get Unicode Code Point Value from UTF-8 Hex value (and vice versa)?

I know, it is explained - somewhere and somehow.

http://en.wikipedia.org/wiki/UTF-8#Description

Yet I really can't understand this whole byte-using and transforming something somehow issue that changes this that way.... Argh!

Please, help me with this.

BR,

4gr

[jchd 846]

First you need to know that currently AutoIt does /not/ support the full Unicode range since it's actually using UCS-2 encoding (a single 16-bit limited subset of UTF-16LE which means that one codepoint is represented by one 16-bit word in memory). So any UTF-8 (or any UTF-*) sequence with codepoints above 16 bits can't be dealt with AutoIt strings and string-related functions. The excluded range doesn't contain widely used characters and this shouldn't be a big issue with most worldwide realworld applications.

Then to get to your question: in the light of the limitation above, you can safely use a UTF-8 to UTF-16 conversion and read 16-bit codepoints from there (again provided your input strings don't contain codepoints that don't fit in 16-bit UTF-16LE -- or UCS-2).

If your input is a text file, then you simply have to read it as UTF-8 (see FileOpen options) and lookup each character code in turn using StringSplit() and then AscW() for instance (remember: AutoIt strings are 16-bit UCS-2).

Don't try to place any UTF-8 input text containing characters > 0x7F in an AutoIt string as this would misinterpret UTF-8 encoding!

What is the actual context where you need this?