Case insensitivity

[Bjorn Pettersen]

> From: François Pinard [mailto:pinard at iro.umontreal.ca]
> 
> [Guido van Rossum]
> 
> > TeachScheme is an interesting case -- Scheme is a case-sensitive
> > language, but in "beginner mode", TeachScheme is 
> case-insensitive.  I
> 
> Did it change recently?  I thought Scheme was 
> case-insensitive.  An idiom I
> saw a few times in Scheme code, written by other people, is 
> writing `lambda'
> or `cdr' when you mean what it means, and `LAMBDA' and `CDR' 
> when you are
> quoting the same, for example when you write code which produces code.

You're correct:

  "Upper and lower case forms of a letter are never distinguished 
  except within character and string constants. For example, Foo 
  is the same identifier as FOO, and #x1AB is the same number as 
  #X1ab."

http://www.cs.indiana.edu/scheme-repository/R4RS/r4rs_4.html

-- bjorn