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From: Jeffrey Carter <spam.jrcarter.not@spam.not.acm.org>
Newsgroups: comp.lang.ada
Subject: Re: _Type vs no _Type
Date: Fri, 05 Nov 2010 14:37:51 -0700
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Date: 2010-11-05T14:37:51-07:00
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On 11/05/2010 12:35 PM, Florian Weimer wrote:
> * Jeffrey Carter:
>
>> Personally, I think allowing non-English identifiers in a language
>> with English reserved words is a mistake.
>
> "English" or "ASCII"?

Ideally, English, but that's rather hard to enforce. But something like

Identifier = Initial_Part {'_' Following_Part}

Initial_Part = All_Caps | Upper_Case {Lower_Or_Digit}

Following_Part = Initial_Part | Digit {Digit}

All_Caps = Upper_Case {Upper_Case}

Upper_Case = Character range 'A' .. 'Z'

Lower_Or_Digit = Lower_Case | Digit

Digit = Character range '0' .. '9'

Lower_Case = Character range 'a' .. 'z'

would probably work (if you can understand my pseudo-BNF).

-- 
Jeff Carter
"Run away! Run away!"
Monty Python and the Holy Grail
58