Re: [regext] 7482bis: Partial String Search Clarification

Mario Loffredo <mario.loffredo@iit.cnr.it> Thu, 23 January 2020 14:16 UTC

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To: "Hollenbeck, Scott" <shollenbeck=40verisign.com@dmarc.ietf.org>, "regext@ietf.org" <regext@ietf.org>
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From: Mario Loffredo <mario.loffredo@iit.cnr.it>
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Date: Thu, 23 Jan 2020 15:14:28 +0100
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Subject: Re: [regext] 7482bis: Partial String Search Clarification
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Il 23/01/2020 14:40, Hollenbeck, Scott ha scritto:
> This is a 7482 clarification proposal that I received off-list.
>
> Current text:
> Partial string searching uses the asterisk ('*', US-ASCII value 0x002A) character to match zero or more trailing characters.  A character string representing multiple domain name labels MAY be concatenated to the end of the search pattern to limit the scope of the search.  For example, the search pattern "exam*" will match "example.com" and "example.net".  The search pattern "exam*.com" will match "example.com".  If an asterisk appears in a search string, any label that contains the non-asterisk characters in sequence plus zero or more characters in sequence in place of the asterisk would match. Additional pattern matching processing is beyond the scope of this specification.
>
> Proposed new text:
> Partial string searching uses the asterisk ('*', US-ASCII value 0x002A) character to match zero or more trailing characters.  A character string representing [a domain label suffix] MAY be concatenated to the end of the search pattern to limit the scope of the search.  For example, the search pattern "exam*" will match "example.com" and "example.net".  The search pattern "exam*.com" will match "example.com".  If an asterisk appears in a search string, any label that contains the non-asterisk characters in sequence plus zero or more characters in sequence in place of the asterisk would match. [Only a single asterisk is allowed for a partial string search.] Additional pattern matching processing is beyond the scope of this specification.
>
> What do people think about this proposal?

My opinion is that allowing one or more asterisks in partial matching 
should be a matter of the server policy.

Mario

>
> Scott
>
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Dr. Mario Loffredo
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