[fpc-pascal] How to find the byte offset of the n-th character in an UTF-8 string?

[Martin]

Have a look at LCLProc in lazarus.

function UTF8CharToByteIndex(UTF8Str: PChar; Len, CharIndex: PtrInt): 
PtrInt;


Roland Schaefer wrote:
> Hi all,
> I have a situation where I internally work with AnsiStrings but need to
> convert them to UTF-8 before passing them to libpango, which I do with
> AnsiToUtf8(). I then need the byte offset of one specific (varying)
> character in the UTF-8 string, which is not trivially available since
> some characters are encoded in 2 bytes. Before I start my own hacks: Is
> there a nice way of finding the byte offset of the n-th character in an
> UTF-8 string?
>
> Thanks a lot.
> Regards
> Roland
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