Re: What does it mean to lexically distinguish significantand

From: David Carlisle <d.p.carlisle@gmail.com>
To: "Costello, Roger L." <costello@mitre.org>
Date: Wed, 13 Sep 2017 12:43:33 +0100

Play the video

It means that you can't tell from xml syntax as specified whether

<x><a>z</a><b>z</b></x>

means the same as

<x>
  <a>z</a>
  <b>z</b>
</x>

you could assume it's always significant (which would never allow you
to re-indent or otherwise re-format some xml)
but in practice you need external knowledge of the vocabulary.

in (x)html

<p><b>z</b><i>z</i></p>

is not the same as


<p>
  <b>z</b>
  <i>z</i>
</p>

but

<body><p>z</p><p>z</p></body>

is the same as

<body>
  <p>z</p>
  <p>z</p>
</body>

There is no syntactical (lexical) difference in the way white space
content of p and body are marked up in html: the significance or
otherwise of the space is specified in the processing of xhtml not in
the way it is parsed.

David

References:
- What does it mean to lexically distinguish significant andinsignificant whitespace?
  - From: "Costello, Roger L." <costello@mitre.org>

[Date Prev] | [Thread Prev] | [Thread Next] | [Date Next] -- [Date Index] | [Thread Index]

PURCHASE STYLUS STUDIO ONLINE TODAY!

Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced!

Download The World's Best XML IDE!

Accelerate XML development with our award-winning XML IDE - Download a free trial today!

Subscribe in XML format

RSS 2.0
Atom 0.3

Stylus Studio has published XML-DEV in RSS and ATOM formats, enabling users to easily subcribe to the list from their preferred news reader application.

Stylus Studio Sponsored Links are added links designed to provide related and additional information to the visitors of this website. they were not included by the author in the initial post. To view the content without the Sponsor Links please click here.

XML Editor - Download a 15 Day Free Trial Now >

See What's New in Stylus Studio >

Buy Stylus Studio - XML Editor - Now >