On Aug 24, 2006, at 9:52 AM, Xavier Noria wrote:

> On Aug 24, 2006, at 6:21 AM, Hal Fulton wrote:
>
>> Peñá wrote:
>>
>>> ah, maybe i should state my problem better, how about "i'd like  
>>> to know if a file is a pure text file". how should i do that in  
>>> ruby?
>>
>> That depends on what you mean by a pure text file. :)
>>
>> Are you assuming Unicode, ASCII, or what?
>
> What is the heuristic used by Subversion for instance?

Ah, yes, it is in their FAQ:

   http://subversion.tigris.org/faq.html#binary-files

-- fxn