Hi Jernej,
Thanks for the explanation, that along with looking at section
6.1.2/6.1.3 makes this clear.
Cheers,
Rob
On 13/10/2015 11:07, Jernej Tuljak wrote:
Robert Wilton je 13.10.2015 ob 12:01 napisal:
Hi,
I was looking the Yang 1.1 ABNF Grammar, and noticed various places
where the rules are specified as the directive "a string that matches
the rule XXX", e.g.
yang-version-arg-str = < a string that matches the rule
yang-version-arg >
yang-version-arg = "1"
It was slightly unclear to me exactly what is meant by this.
Am I right in understanding that the only valid text that would match
yang-version-arg-str would be the 3 character sequence *"1"*, or is
it more nuanced that this?
I.e. I presume that there is a good reason why these rules aren't
just specified as the following:
yang-version-arg-str = DQUOTE yang-version-arg DQUOTE
The reason are probably YANG quotation rules. The "string that
matches" is a dequoted string without any "+" or quotes, so the
grammar rules don't have to handle those explicitly.
Jernej
Thanks,
Rob
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