Re: new revision ada (exception handling)

["Christoph Karl Walter Grein" <AdaMagica@web.de>]

> like the definition of Enumeration_IO.Get assumes that name ends can be
> recognized prior knowing names, though A.10.10(9) does not read it
> explicitly. Considering an enumeration type with images Red and Red1. Would
> it be legal according to A.10.10(9) to read Red; and then raise Data_Error?

If you read the chapter on inputting enumeration literals very carefully, you'll find that you have
 to read a sequence of input characters as long as the sequence is a legal sequence for Ada
identifiers. Only after reading characters has ended, you make a check whether this sequence is a
defined literal.

It is irrelevant how long the expected literals are.

So for instance when reading booleans, "trueanything.x" has to be read until the dot, leaving the dot
 and the x in the input stream. Then you compare trueanything to true and raise Data_Error.
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