- From: Gervase Markham <gerv@mozilla.org>
- Date: Thu, 22 Aug 2013 14:05:34 +0100
- To: Anne van Kesteren <annevk@annevk.nl>
- CC: Mark Davis ☕ <mark@macchiato.com>, Shawn Steele <Shawn.Steele@microsoft.com>, IDNA update work <idna-update@alvestrand.no>, "PUBLIC-IRI@W3.ORG" <public-iri@w3.org>, "uri@w3.org" <uri@w3.org>, John C Klensin <klensin@jck.com>, Peter Saint-Andre <stpeter@stpeter.im>, Marcos Sanz <sanz@denic.de>, Vint Cerf <vint@google.com>, "www-tag.w3.org" <www-tag@w3.org>
On 22/08/13 13:36, Anne van Kesteren wrote: > As far as UseSTD3ASCIIRules is concerned, I haven't checked if TR46 is > safe when it comes to > https://www.w3.org/Bugs/Public/show_bug.cgi?id=23009 if you turn that > flag off. AIUI, assuming we write our replacement for the STD3ASCIIRules to disallow "/" in hostnames, we should be fine. When UseSTD3ASCIIRules is false, "℁" (U+2101) will map to "a/s", and then the "/" will be disallowed. TR46 section 4.1: "If UseSTD3ASCIIRules=false, then the validity tests for ASCII characters are not provided by the table status values, but are implementation-dependent. For example, if an implementation allows the characters [\u002Da-zA-Z0-9] and also the underbar (_), then it needs to use the table values for UseSTD3ASCIIRules=false, and test for any other ASCII characters as part of its validity criteria. *These ASCII characters may have resulted from a mapping*: for example, a U+005F ( _ ) LOW LINE (underbar) may have originally been a U+FF3F ( ＿ ) FULLWIDTH LOW LINE." (Emphasis mine.) Gerv
Received on Thursday, 22 August 2013 13:06:11 UTC