Re: [apps-discuss] Question about URI template and expansion of an empty list
"Murray S. Kucherawy" <superuser@gmail.com> Mon, 08 April 2013 13:53 UTC
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Date: Mon, 08 Apr 2013 06:53:49 -0700
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From: "Murray S. Kucherawy" <superuser@gmail.com>
To: James M Snell <jasnell@gmail.com>
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Cc: IETF Apps Discuss <apps-discuss@ietf.org>
Subject: Re: [apps-discuss] Question about URI template and expansion of an empty list
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empty_keys (defined in 3.2) is an empty associative array, not an empty list. So we have: - an undefined value produces "X" - a defined-but-empty string produces "X." - a defined-but-empty associative array produces "X" It's not clear to me that there's a pattern here yielding an obvious answer for which of the two a defined-but-empty list should produce. On Mon, Apr 8, 2013 at 6:37 AM, James M Snell <jasnell@gmail.com> wrote: > Am I missing something subtle about the question? The examples in Section > 3.2.5 show "X{.empty_keys}" where empty keys = [], expands to "X". Given > that the list is empty, there's nothing to expand it into. > On Apr 8, 2013 5:54 AM, "Francis Galiegue" <fgaliegue@gmail.com> wrote: > >> On Mon, Apr 8, 2013 at 8:55 AM, Murray S. Kucherawy <superuser@gmail.com> >> wrote: >> > I'm inclined to think it's "X." for the same reason "X{.empty}" is "X.", >> > which is to say that an empty list, like an empty string, isn't >> undefined, >> > but there is indeed nothing to expand. >> > >> > Either way, there may be grounds for an erratum here. The RFC does talk >> > about handling empty strings, but not empty lists. The closest is >> Section >> > 3.2.1 which talks about "expansion of a defined, non-empty value", >> meaning >> > defined, empty values aren't explicitly covered in the prose as far as >> I can >> > see. >> > >> >> Similarly, it doesn't talk about extending empty maps. >> >> -- >> Francis Galiegue, fgaliegue@gmail.com >> JSON Schema in Java: http://json-schema-validator.herokuapp.com >> _______________________________________________ >> apps-discuss mailing list >> apps-discuss@ietf.org >> https://www.ietf.org/mailman/listinfo/apps-discuss >> >
- [apps-discuss] Question about URI template and ex… Francis Galiegue
- Re: [apps-discuss] Question about URI template an… Francis Galiegue
- Re: [apps-discuss] Question about URI template an… Erik Wilde
- Re: [apps-discuss] Question about URI template an… Murray S. Kucherawy
- Re: [apps-discuss] Question about URI template an… Francis Galiegue
- Re: [apps-discuss] Question about URI template an… James M Snell
- Re: [apps-discuss] Question about URI template an… Murray S. Kucherawy
- Re: [apps-discuss] Question about URI template an… James M Snell
- Re: [apps-discuss] Question about URI template an… Erik Wilde
- Re: [apps-discuss] Question about URI template an… Francis Galiegue
- Re: [apps-discuss] Question about URI template an… James M Snell
- Re: [apps-discuss] Question about URI template an… Erik Wilde
- Re: [apps-discuss] Question about URI template an… Murray S. Kucherawy
- Re: [apps-discuss] Question about URI template an… Francis Galiegue
- Re: [apps-discuss] Question about URI template an… Francis Galiegue
- Re: [apps-discuss] Question about URI template an… Francis Galiegue
- Re: [apps-discuss] Question about URI template an… Erik Wilde
- Re: [apps-discuss] Question about URI template an… Murray S. Kucherawy
- Re: [apps-discuss] Question about URI template an… James M Snell
- Re: [apps-discuss] Question about URI template an… Joe Gregorio
- Re: [apps-discuss] Question about URI template an… Francis Galiegue
- Re: [apps-discuss] Question about URI template an… Joe Gregorio
- Re: [apps-discuss] Question about URI template an… Erik Wilde
- Re: [apps-discuss] Question about URI template an… James M Snell