From: Stephen Williams (email@example.com)
Date: Sun Mar 02 2003 - 09:50:02 PST
The following reply was made to PR errata/290; it has been noted by GNATS.
From: Stephen Williams <firstname.lastname@example.org>
To: "Brad Pierce" <Brad.Pierce@synopsys.com>
Subject: Re: errata/290: Escaping keyword identifiers
Date: Sun, 02 Mar 2003 09:48:01 -0800
In 2.7.1, regarding escaped identifiers --
"Neither the leading backslash character nor the terminating
white space is considered to be part of the identifer.
Therefore, an escaped identifier \cpu3 is treated the same
as a nonescaped identifier cpu3."
In 2.7.3, regarding keywords --
"Keywords are predefined identifiers that are used to define
the language constructs. A Verilog HDL keyword preceded by
an escape character is not interpreted as a keyword."
> These paragraphs contradict each other. To me the exception for
> keywords doesn't make sense. But if the exception must be preserved,
> then section 2.7.1 should explicitly note it.
They contradict only in the sense that keywords are unfortunately
called "predefined identifiers" which they are not. They are keywords.
They are lexical tokens. The "module" token is no more an identifier
then the '+' character or an opening bracket '[' character.
I don't think that the combination of your quotes causes one to
conclude that \+ is the same as "+" and is therefore not an identifer.
I therefore submit that confusion is from an unfortunate definition of
Steve Williams "The woods are lovely, dark and deep.
steve at icarus.com But I have promises to keep,
steve at picturel.com and lines to code before I sleep,
http://www.picturel.com And lines to code before I sleep."
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