[lug] help

[rm at fabula.de]

On Thu, Jul 29, 2004 at 05:04:30PM +0530, vinatha.komirishetty at wipro.com wrote:
> 
> Hi
> 

Hello Vinatha,

somehow it's hard to answer your question with so little context but i'll give
it a try anyway: 

> 
>      I would like to find the type of file (ie) whether it' s  an
> UTF-8/Ascii/Ebcidic File..could u plz do enough help to solve this
> issue.
> 

Hmm, first of all, you are probably not looking for the _type_ of the file
but for the _character encoding_ (given your examples: ascii/utf-8/ebcdic ...).
This is pretty hard (actually, in most cases impossible) _unless_ you have a 
pretty good idea about the contents of the file.
Since files are represented on a Linux system as streams of bytes without any
meta information about things like character encoding you will actually have to
read the whole file to exclude some of the encodings (for example: ASCII is a seven
bit encoding, so if you read a byte whose highest bit is set than it can't be ASCII).
There are similar possible exclusion rules for utf-8/utf-16 etc. but there still are
a lot of cases where you can't distinguish between encodings (iso-8859-1/iso-8859-5 etc.).

HTH Ralf Mattes
> Regards,
> 
> Vinatha.
> 
> 
> 
> 
> -----Original Message-----
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> Sent: Thursday, July 29, 2004 4:53 PM
> To: Vinatha Komirishetty (WT01 - Retail, CPG & Distribution)
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