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Re: Help with regex [message #184989 is a reply to message #184968]

Sun, 23 February 2014 16:57

Christoph Michael Bec
Messages: 207
Registered: June 2013

Karma:

Senior Member

Thomas 'PointedEars' Lahn wrote:

> Christoph Michael Becker wrote:
>
>> Thomas 'PointedEars' Lahn wrote:
>>> Christoph Michael Becker wrote:
>>>> Thomas 'PointedEars' Lahn wrote:
>>>> > knal wrote:
>>>> >> Could you please give a little more direction on the DOM?
>>>> > I presume he could.
>>>>
>>>> Actually, I have not yet used PHP's DOM extension. However, it should
>>>> not be too different from other DOM implementations, so basically it
>>>> comes down to load an HTML document and than use XPath to get the
>>>> desired information. The mentioned keywords should be sufficient to
>>>> search the web -- at least for some first steps.
>>>
>>> However, implementations of the W3C DOM Core API do not require a way so
>>> that a document tree can be built from source code, nor is XPath support
>>> required.
>>
>> I was not explicitly speaking about the DOM *Core* API,
>
> But that is PHP’s implementation. DOMXPath resembles, but does not conform
> to, DOM3 XPath.

I believe you're right, even if the PHP manual doesn't state compliancy
with the W3C DOM API, let alone any particular level or (in lack of a
better word) "section" (with this I mean "Core", "Events" etc.)

>> but rather of DOM implementations in a broad sense. As you surely are
>> aware, there is the DOM Level 3 Load and Save Specification[1] as well as
>> the XML Path Language (XPath) Version 1.0[2], both of which are W3C
>> recommendations since a long time.
>
> And both of which are *optional*. PHP implements none of them, but it
> supports alternative ways.
>
>> While XPath support might be missing from some "DOM"
>> implementations, either implicit or explicit loading of a document
>> source most likely won't (otherwise the implementation would not allow
>> to work with existing document sources, and as such would not be too
>> useful).
>
> Your logic is flawed. For example, the W3C DOM implementation in browsers
> does not always have such a way.

With "implicit loading" I meant that a browser makes the current
document accessible via DOM objects and methods.

>>> So you had better RTFM yourself before making the suggestion.
>>
>> I had glimpsed over the manual and found DOMDocument::loadHTML()[3] as
>> well as DOMXPath[4]...
>
> Non sequitur.

I didn't mean to imply that the existance of these features means that
any particular W3C DOM API is available.

--
Christoph M. Becker

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[Message index]

		Help with regex By: knal on Wed, 19 February 2014 09:18
		Re: Help with regex By: Thomas 'PointedEars' on Wed, 19 February 2014 14:20
		Re: Help with regex By: knal on Wed, 19 February 2014 14:45
		Re: Help with regex By: Christoph Michael Bec on Wed, 19 February 2014 15:11
		Re: Help with regex By: knal on Wed, 19 February 2014 15:17
		Re: Help with regex By: Thomas 'PointedEars' on Wed, 19 February 2014 15:37
		Re: Help with regex By: Christoph Michael Bec on Wed, 19 February 2014 20:32
		Re: Help with regex By: Thomas 'PointedEars' on Wed, 19 February 2014 21:28
		Re: Help with regex By: Christoph Michael Bec on Thu, 20 February 2014 21:43
		Re: Help with regex By: Thomas 'PointedEars' on Fri, 21 February 2014 01:25
		Re: Help with regex By: Christoph Michael Bec on Sun, 23 February 2014 16:57
		Re: Help with regex By: Jerry Stuckle on Wed, 19 February 2014 18:48
		Re: Help with regex By: Peter H. Coffin on Thu, 20 February 2014 06:29
		Re: Help with regex By: Thomas 'PointedEars' on Wed, 19 February 2014 15:30
		Re: Help with regex By: The Natural Philosoph on Wed, 19 February 2014 17:42
		Re: Help with regex By: Scott Johnson on Wed, 19 February 2014 23:38

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