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Re: Case sensitivity

From: Keith Wright
Subject: Re: Case sensitivity
Date: Sun, 6 Jan 2002 20:57:08 -0500

> From: Guan Yang <address@hidden>
> I'm running Guile 1.4:
> guile> (eqv? 'a 'A)
> #f
> Isn't this a violation of R5RS section 6.3.3?

Yes it is.
The guile 1.5.4 manual says this about that:

>    Scheme as defined in R5RS is not case sensitive when reading symbols.
> Guile, on the contrary is case sensitive by default, so the identifiers
>      guile-whuzzy
>      Guile-Whuzzy
>    are the same in R5RS Scheme, but are different in Guile.
>    It is possible to turn off case sensitivity in Guile by setting the
> reader option `case-insensitive'.  More on reader options can be found
> at (*note Reader options::).
>      (read-enable 'case-insensitive)
>    Note that this is seldom a problem, because Scheme programmers tend
> not to use uppercase letters in their identifiers anyway.

If it were up to me, I would make the default behaviour correspond
to R*RS,

     -- Keith Wright  <address@hidden>

Programmer in Chief, Free Computer Shop <>
         ---  Food, Shelter, Source code.  ---

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