- From: Ian Hickson <ian@hixie.ch>
- Date: Tue, 14 Jul 2009 05:29:43 +0000 (UTC)
- To: "Michael A. Puls II" <shadow2531@gmail.com>
- Cc: public-html@w3.org
On Fri, 19 Jun 2009, Michael A. Puls II wrote: > > With <input type="number">, if a user enters "abc" for example, the > specs says to handle that as if the value is an empty string. No, the spec doesn't say how to handle it. That's a user interface issue, out of scope of the spec. It does say, however, that: # User agents must not allow the user to set the value to a string that is # not a valid floating point number. ...so if the user does enter "abc", it won't affect the element's value. > However, should the UA even allow the user to enter those characters in > the field? It seems like if the keypress is not one of "-+.e0123456789" > (or "," instead of "." depending on the locale), then the keypress > should be prevented. Or, if a value that's pasted into the field that's > invalid should be prevented. That's up to the UA. > Or, is validation only meant for when it's time to submit? Validation is independent of user entry. It's not possible for "abc" to become the value through user interaction. > Or, is this one of things where "The UA can do whatever it wants"? If > so, is there any common practice that should be followed with user input > in this case? I don't know of any common practices yet. -- Ian Hickson U+1047E )\._.,--....,'``. fL http://ln.hixie.ch/ U+263A /, _.. \ _\ ;`._ ,. Things that are impossible just take longer. `._.-(,_..'--(,_..'`-.;.'
Received on Tuesday, 14 July 2009 05:30:18 UTC