7461 2009-08-30 20:51:56 +0000 List of space characters should include U+000B LINE TABULATION (VT) or should note why it is not included. 2010-10-04 14:32:28 +0000 1 1 1 Unclassified HTML WG pre-LC1 HTML5 spec (editor: Ian Hickson) unspecified All All VERIFIED WONTFIX http://whatwg.org/specs/web-apps/current-work/#space-character NE, NoReply P3 normal LC 1 contributor ian mike public-html-admin public-html-wg-issue-tracking public-html-bugzilla oldest_to_newest 26746 0 contributor 2009-08-30 20:51:56 +0000 Section: http://whatwg.org/specs/web-apps/current-work/#space-character Comment: List of space characters should include U+000B LINE TABULATION (VT) or should note why it is not included. Posted from: 149.159.142.23 27448 1 ian 2009-09-21 23:48:25 +0000 Why would it be included? 28425 2 mdmkolbe 2009-10-17 02:16:45 +0000 If this U+000B LINE TABULATION (a.k.a. Vertical Tab, VT) where included, then this list of characters would be precisely those which (both the following definitions are equivalent): - have the Unicode White_Space property and are in Basic Latin (i.e. 7-bit ASCII) - are "standard white-space characters" (i.e. those for which isspace() returns true in the "C" locale) in the C99 standard [1]. To a naive reader (like me), it is surprising that VT has been excluded. After all the other "strange" ASCII white-space character, U+000C FORM FEED (FF), is included. It seems rather arbitrary to include FF but exclude VT. Is there some technical distinction that I'm missing that would explain why one is included but the other excluded? I acknowledge that HTML 4.01 also allowed FF but excluded VT [2]. However, I haven't been able to find any documentation explaining why. On the face it looks like it could have been an oversight or a hold-over from SGML. [1] http://www.open-std.org/jtc1/sc22/wg14/www/docs/n1336.pdf page 183 [2] http://unicode.org/reports/tr20/#White 28438 3 ian 2009-10-18 09:52:31 +0000 It's probably a holdover from SGML, yes. I excluded it from HTML5 for consistency with HTML4 and XML. (XML also excludes FF, IIRC, but that would cause problems with, e.g., RFCs, which contain FF characters.) 33365 4 mjs 2010-03-14 14:50:24 +0000 This bug predates the HTML Working Group Decision Policy. If you are satisfied with the resolution of this bug, please change the state of this bug to CLOSED. If you have additional information and would like the editor to reconsider, please reopen this bug. If you would like to escalate the issue to the full HTML Working Group, please add the TrackerRequest keyword to this bug, and suggest title and text for the tracker issue; or you may create a tracker issue yourself, if you are able to do so. For more details, see this document: http://dev.w3.org/html5/decision-policy/decision-policy.html This bug is now being moved to VERIFIED. Please respond within two weeks. If this bug is not closed, reopened or escalated within two weeks, it may be marked as NoReply and will no longer be considered a pending comment.