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From: Kenneth Wolcott <kennethwolcott@gmail.com>
Subject: Re: Using "pure" (?) Ada, how to determine whether a file is a "text" file, not a binary?
Date: Sat, 1 Jul 2023 14:50:32 -0700 (PDT)	[thread overview]
Message-ID: <48b33023-a38e-4ccc-855e-fe6de7b12ea5n@googlegroups.com> (raw)
In-Reply-To: <87edlrxqfd.fsf@nosuchdomain.example.com>

On Saturday, July 1, 2023 at 2:39:06 PM UTC-7, Keith Thompson wrote:
> Kenneth Wolcott writes: 
> > On Saturday, July 1, 2023 at 1:39:30 PM UTC-7, Jeffrey R.Carter wrote: 
> >> On 2023-07-01 19:15, Kenneth Wolcott wrote:
> [...]
> >> For example, if a text file is one in which all the characters, except line 
> >> terminators, are graphic characters, then it should be clear how to determine 
> >> whether a file meets that definition of a text file. 
> > 
> > I think that is the definition that I'm going to pursue as the 
> > simplest and effective definition.
> Think about how you want to handle tab characters (non-graphic but 
> common in some text) and carriage return characters (non-graphic but 
> part of a line terminator for Windows-style text files). 
> 
> Also think about the various ways of representing text: ASCII, Latin-1, 
> UTF-8, UTF-16, etc. 

Thanks, Keith!

It looks like just need to more carefully examine the existing Ada I/O packages and experiment with the possibilities...

Ken

  reply	other threads:[~2023-07-01 21:50 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-07-01 17:15 Using "pure" (?) Ada, how to determine whether a file is a "text" file, not a binary? Kenneth Wolcott
2023-07-01 20:39 ` Jeffrey R.Carter
2023-07-01 20:54   ` Kenneth Wolcott
2023-07-01 21:39     ` Keith Thompson
2023-07-01 21:50       ` Kenneth Wolcott [this message]
2023-07-02  1:08         ` Chris Townley
2023-07-02  1:48           ` Kenneth Wolcott
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