Re: UTF-8 in path / filename

[Peter Dyballa]

Am 27.08.2006 um 00:13 schrieb James Cloos:

> Peter> Files with UTF-8 characters in them are shown in dired (has - 
> u: in
> Peter> mode-line, i.e. uses UTF-8) à la <vowel><empty box>. Some  
> UTF-8
> Peter> characters like ß or Û show up as themselves.
>
> Doesn't apple by default use NFD (Normalizaion Form Decomposed) for
> filenames?  That would explain the <vowel><box> sequences.

Yes, that's the correct term for the way file names are recorded in  
HFS+.

The font file, LucidaTypewriterRegular.ttf, has no combining  
diacritical marks defined (only some modifiers), so these empty boxes  
are displayed instead.

> Can you get at the actual octet-sequence of the filenames?

Do you know a tool that can do that? I can only think of a C  
programme that reads the inode and than outputs the octets. Doing the  
same as Harald did I get in Terminal different output (because UTF-8  
characters are substituted with question marks, for example:

        pete 140 /\ l -1 | grep .txt | grep ' ' | grep -v Mac
        RGB äöüæÆÜÖÄ.txt
        pete 141 /\ l -1 | grep .txt | grep ' ' | grep -v Mac | od -t a
            R   G   B  sp   a   ?  88   o   ?  88   u   ?  88   ?   ?   ?
           86   U   ?  88   O   ?  88   A   ?  88   .   t   x   t  nl

In Emacsen' shells I get:

	    R   G   B  sp   a   \314  88   o   \314  88   u   \314  88    
\303   \246   \303
           86   U   \314  88   O   \314  88   A   \314  88   .   t   x   t  nl

The file name áÛïǓà.txt is interpreted as:

	    a   \314  81   U   \314  82   i   \314  88   U   \314  8c   a    
\314  80   .
            t   x   t  nl

--
Greetings

  Pete

"Isn't vi that text editor with two modes... one that beeps and one
that corrupts your file?" -- Dan Jacobson, on comp.os.linux.advocacy