Re: [webstorage] Ambiguous Requirement for Key Ordering
On Tue, 9 Jun 2009, Lachlan Hunt wrote: The spec states [1]: The key(n) method must return the name of the nth key in the list. The order of keys is user-agent defined, but must be consistent within an object between changes to the number of keys. (Thus, adding or removing a key may change the order of the keys, but merely changing the value of an existing key must not.) There is an ambiguity that can make that paragraph self-contradictory, depending on how the phrase [the order] must be consistent within an object between changes to the number of keys.. The ambiguity appears to be caused by the use of the word between in that context. I initially interpreted that as meaning that the order must remain consistent when the number of keys changes. But then this interpretation is contradicted by the parenthetical sentence following it. Fixed. -- Ian Hickson U+1047E)\._.,--,'``.fL http://ln.hixie.ch/ U+263A/, _.. \ _\ ;`._ ,. Things that are impossible just take longer. `._.-(,_..'--(,_..'`-.;.'
RE: [webstorage] Ambiguous Requirement for Key Ordering
On Tuesday, June 09, 2009 6:57 AM, Lachlan Hunt wrote: Hi, The spec states [1]: The key(n) method must return the name of the nth key in the list. The order of keys is user-agent defined, but must be consistent within an object between changes to the number of keys. (Thus, adding or removing a key may change the order of the keys, but merely changing the value of an existing key must not.) There is an ambiguity that can make that paragraph self-contradictory, depending on how the phrase [the order] must be consistent within an object between changes to the number of keys.. The ambiguity appears to be caused by the use of the word between in that context. I initially interpreted that as meaning that the order must remain consistent when the number of keys changes. But then this interpretation is contradicted by the parenthetical sentence following it. Please clarify. [1] http://dev.w3.org/html5/webstorage/#dom-storage-key I read it as meaning between the times when the number of keys changes the order must be consistent but I see the potential ambiguity. Perhaps the paragraph could be: The key(n) method must return the name of the nth key in the list. The order of keys is user-agent defined, but must be consistent within an object while the number of keys is unchanged. Adding or removing a key may change the order of the keys, but merely changing the value of an existing key must not. Adrian.
