Re: [O] Citation syntax: a revised proposal

[Nicolas Goaziou]

Richard Lawrence <address@hidden> writes:

> Sorry, I may not have emphasized this enough, but in the grammar, I wrote:
>
>   - A KEY optionally begins with `-', and obligatorily contains `@' or
>     `&' followed by a string of characters which begins with a letter
>     or `_', and may contain alphanumeric characters and the following
>     *internal* punctuation characters:
>        :.#$%&-+?<>~/
>        
> The `internal' here was meant to express exactly what Aaron said: keys
> can contain punctuation, but may not end (or begin) with punctuation.

OK. I misunderstood the "internal" part. 

What about "@_" and "@a" ? Are they valid keys?


Regards,