DDDS Application
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... domains, for example.
Although this is defining a new and separate DDDS Application, dubbed
U-NAPTR, it is built from the same principles as the Straightforward
...
... regular expressions in NAPTR
records (for the S-NAPTR DDDS Application). However, that also rules
out the possibility of providing a URI as the target ...
... S-NAPTR ("S", "A", or empty), plus
the "U" Flag. For the U-NAPTR DDDS Application, the presence of the
"U" Flag in the NAPTR record indicates the REGEXP ...
...
This section formally defines the DDDS Application, as described in
[7].
...
... Note that this is similar to, but not the same as the syntax used in
the URI DDDS application [5]. The DDDS DNS ...
... DNS database requires each
DDDS application to define the syntax of allowable service strings.
The syntax here is expanded to allow the characters that are valid ...