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From: "KE" <koray.erkan@yahoo.com>
Newsgroups: comp.lang.ada
Subject: Re: Char type verification
Date: 15 Nov 2006 15:15:32 -0800
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Date: 2006-11-15T15:15:32-08:00
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Dear George

Many thanks for your detailed answer. I'll most certainly make use of
your advice. However, if you look again, my question was not

- How can I verify whether a character is upper case

Nor was it

- Where, in the library hierarchies of Ada, can I find the character
handling routines

It was intended as "How do you translate this example to Ada? How would
you, as a presumably experienced Ada coder, do it? What hoops would we
jump through?

In other words, I wanted to see some Ada idioms in action to create a
transparent coding of this.

If you believe this simple exercise is not a productive use of your
time, though, I can understand.

Thanks again.


-- KE


Georg Bauhaus wrote:
[snip...]
>
> Or use Ada.Characters.Handling.Is_Upper(c), if you want
> to include characters outside 7bit ASCII.
>
> The C type char, which IIRC might start at -127 or
> at 0, has an implementation defined representation,
> and is a bit vague. The Ada standard frowns upon vague
> things, hence Ada's character type does not have
> theses issues. OTOH, for interfacing with C,
> look at the standard package Interfaces.C.
>
> For more general uses, there are standard packages
> Ada.Strings.Maps, Ada.Strings.Maps.Constants,
> Ada.Characters.Handling, and Ada.Characters.Latin_1.
> There are all kinds of character predicates and
> translation subprograms.
>
> There are variants for Wide_Character, covering
> the BMP of ISO 10646.
> 
> Ada 2005, in addition supports Unicode and related
> subprograms.