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Re: Help with regex [message #184968 is a reply to message #184967]

Fri, 21 February 2014 01:25

Thomas 'PointedEars'
Messages: 701
Registered: October 2010

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Senior Member

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.

> 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.

>> 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.

PointedEars
--
> If you get a bunch of authors […] that state the same "best practices"
> in any programming language, then you can bet who is wrong or right...
Not with javascript. Nonsense propagates like wildfire in this field.
-- Richard Cornford, comp.lang.javascript, 2011-11-14

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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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