Re: [whatwg] brief question on 2.4.5 Dates and times
Ian Hickson wrote: ... If you're looking for something, start at the start. Don't try to short-circuit the spec and jump half-way through your answer; if you do that you might miss restrictions that apply to particular cases. ... At the start of the spec? Seriously? BR, Julian
Re: [whatwg] brief question on 2.4.5 Dates and times
On Wed, 26 Aug 2009, Silvia Pfeiffer wrote: I am trying to use the specification of Dates and times given in section 2.4.5. How? That section is just introducing concepts for the rest of the spec. I was surprised to find that there is a specification of a valid month string, but not of a valid year string or a valid day string. Is that an oversight? No, nothing in the spec uses the term valid year string or valid day string, so I didn't need to define them. On Thu, 27 Aug 2009, Silvia Pfeiffer wrote: I was trying to find out what restrictions we are putting on the year part of the string. E.g. are we allowing years before the year 0 and how. In what context? time? input type=date? ins datetime? Something else? (The answer is the same for all of them, but the answer is much easier to find if you start from a concrete question, and then follow the definitions back.) It's all there, and it's all fully defined by recursive definition of the parts that are being re-used (e.g. date reuses month (which is month-year, but not just month). However, if you are trying to look for something, it's rather confusing not to have e.g. year and day exposed in the contents, while month is. If you're looking for something, start at the start. Don't try to short-circuit the spec and jump half-way through your answer; if you do that you might miss restrictions that apply to particular cases. -- Ian Hickson U+1047E)\._.,--,'``.fL http://ln.hixie.ch/ U+263A/, _.. \ _\ ;`._ ,. Things that are impossible just take longer. `._.-(,_..'--(,_..'`-.;.'
Re: [whatwg] brief question on 2.4.5 Dates and times
On Wed, Sep 2, 2009 at 9:51 AM, Ian Hickson i...@hixie.ch wrote: On Wed, 26 Aug 2009, Silvia Pfeiffer wrote: I am trying to use the specification of Dates and times given in section 2.4.5. How? That section is just introducing concepts for the rest of the spec. I was looking at harmonising the way in which time is specified in W3C Media Fragment URIs with the way in which we are doing it in HTML5. Therefore, there is no relationship to any HTML5 elements. I was surprised to find that there is a specification of a valid month string, but not of a valid year string or a valid day string. Is that an oversight? No, nothing in the spec uses the term valid year string or valid day string, so I didn't need to define them. As I realised that, I understood why it's been done the way it is. So, while I believe it's a hard to read section if all you're looking for is to understand the date format, I now also understand why it is done the way it is. On Thu, 27 Aug 2009, Silvia Pfeiffer wrote: I was trying to find out what restrictions we are putting on the year part of the string. E.g. are we allowing years before the year 0 and how. In what context? time? input type=date? ins datetime? Something else? (The answer is the same for all of them, but the answer is much easier to find if you start from a concrete question, and then follow the definitions back.) My concrete question is independent of a particular element and is not even based in HTML directly. It's all there, and it's all fully defined by recursive definition of the parts that are being re-used (e.g. date reuses month (which is month-year, but not just month). However, if you are trying to look for something, it's rather confusing not to have e.g. year and day exposed in the contents, while month is. If you're looking for something, start at the start. Don't try to short-circuit the spec and jump half-way through your answer; if you do that you might miss restrictions that apply to particular cases. For my particular case, I started at the start, which is the specification of the date string concept. Also, if somebody wants to understand the principle of how time is specified in HTML, this is the place to start and not in the particular elements. I don't think one can prescribe how somebody must read a spec. Rather, a spec should be easy to read no matter which section somebody is interested in. In any case, it's not a major headache and hardly worth further worrying about. There are more important things to take care of. Regards, Silvia.
Re: [whatwg] brief question on 2.4.5 Dates and times
On Tue, Aug 25, 2009 at 9:01 PM, Silvia Pfeiffersilviapfeiff...@gmail.com wrote: Hi, I am trying to use the specification of Dates and times given in section 2.4.5. I was surprised to find that there is a specification of a valid month string, but not of a valid year string or a valid day string. Is that an oversight? Isn't a valid day string just a normal date string? The month string is month-year, after all, not just month. A year string by itself isn't useful in the current spec, as there's nothing that would consume it. time uses a date or datetime, and the various inputs all use times, dates, weeks, or months. ~TJ
Re: [whatwg] brief question on 2.4.5 Dates and times
On Wed, Aug 26, 2009 at 11:12 PM, Tab Atkins Jr. jackalm...@gmail.comwrote: On Tue, Aug 25, 2009 at 9:01 PM, Silvia Pfeiffersilviapfeiff...@gmail.com wrote: Hi, I am trying to use the specification of Dates and times given in section 2.4.5. I was surprised to find that there is a specification of a valid month string, but not of a valid year string or a valid day string. Is that an oversight? Isn't a valid day string just a normal date string? The month string is month-year, after all, not just month. A year string by itself isn't useful in the current spec, as there's nothing that would consume it. time uses a date or datetime, and the various inputs all use times, dates, weeks, or months. I suppose it is a matter of taste how to describe this. I'll give you my impression. I was trying to find out what restrictions we are putting on the year part of the string. E.g. are we allowing years before the year 0 and how. I went into the table of content and wasn't able to find anything about year, but only about month and date etc. By working backwards from the date, I found that the year string was defined under the month paragraph. I was rather frustrated by that time. Similarly with the format of the day string (i.e. the day part of the string, though that was much more obvious. It's all there, and it's all fully defined by recursive definition of the parts that are being re-used (e.g. date reuses month (which is month-year, but not just month). However, if you are trying to look for something, it's rather confusing not to have e.g. year and day exposed in the contents, while month is. As I said - a matter of taste - and possibly usability. Regards, Silvia.
[whatwg] brief question on 2.4.5 Dates and times
Hi, I am trying to use the specification of Dates and times given in section 2.4.5. I was surprised to find that there is a specification of a valid month string, but not of a valid year string or a valid day string. Is that an oversight? Regards, Silvia.
