[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: A practical question about attributes
Pros:Use attributes when you want to enforce content, and you dont want the values to appear on the 'print out'. Cons:you cant use external entiies in attributes, you can't repeat them, and they have no fixed order. Use elements when the content is designed to be read. As far as the DOM is concerned, an element list is indexed and automatically updated, an attribute list is not. As far as I can see from reviewing the discussions over the last ten years (about 50% for and 50% against attributes) the rest is religion! Frank Frank Boumphrey XML and style sheet info at Http://www.hypermedic.com/style/index.htm Author: - Professional Style Sheets for HTML and XML http://www.wrox.com CoAuthor: XML applications from Wrox Press, www.wrox.com Author: Using XML on the Web (March) ----- Original Message ----- From: Jeffrey E. Sussna <jes@k...> To: 'XML-DEV' <xml-dev@i...> Sent: Tuesday, January 12, 1999 2:38 PM Subject: A practical question about attributes >Folks, > >Having started a heavily philosophical thread about coherent standards, I want to ask a much more practical question. I am designing an XML schema for use in an environment that is extremely bandwidth sensitive. I can gain significant size reductions by representing things as attributes rather than sub-elements. Here is an example: > ><session><id>25</id><type>Q</type><num>15</num></session> > >57 bytes > >as opposed to > ><session id="25" type="Q" num="15"/> > >36 bytes > >Here's the question: does anyone know of any gotchas in using attributes instead of elements? Parsing issues, etc.? > >TIA, >Jeff > >----------------------------------------------------------------- >Kuantech, Inc. http://www.kuantech.com >Jeffrey E. Sussna, Principal jes@k... > >Distributed Content Architectures for Dynamic Online Applications >----------------------------------------------------------------- > > >xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@i... >Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ >To (un)subscribe, mailto:majordomo@i... the following message; >(un)subscribe xml-dev >To subscribe to the digests, mailto:majordomo@i... the following message; >subscribe xml-dev-digest >List coordinator, Henry Rzepa (mailto:rzepa@i...) > > xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@i... Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ To (un)subscribe, mailto:majordomo@i... the following message; (un)subscribe xml-dev To subscribe to the digests, mailto:majordomo@i... the following message; subscribe xml-dev-digest List coordinator, Henry Rzepa (mailto:rzepa@i...)
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