[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Processor treatment of entities
At 2005-04-12 02:31 -0500, Jack Matheson wrote: >In section 4.4 of the XML specification, a distinction is made between >entities referenced in attribute values <bar acronym="AT&T"/> >and entities occurring as attribute values. <!NOTATION gif SYSTEM ""> <!ENTITY foo SYSTEM "../../images/foo.gif" NDATA gif> .... <figure image="foo"/> >Can anyone explain this difference to me? I hope the above distinction helps. Unparsed entities can only be referenced as attribute values ... since they aren't parsed, they cannot be referenced as a parsed entity as in &foo;. An unparsed entity's relative URI is resolved to an absolute URI based on the location of the entity declaration in either the internal or an external declaration subset. In XSLT using unparsed-entity-uri() will get you the absolute URI. This is very helpful in publishing when managing the locations of graphic files being referenced for XSL-FO engines. I don't see many of my students having used unparsed entities, though, when I cover this topic in class. I hope this helps. ........................... Ken -- World-wide on-site corporate, govt. & user group XML/XSL training. G. Ken Holman mailto:gkholman@C... Crane Softwrights Ltd. http://www.CraneSoftwrights.com/x/ Box 266, Kars, Ontario CANADA K0A-2E0 +1(613)489-0999 (F:-0995) Male Breast Cancer Awareness http://www.CraneSoftwrights.com/x/bc Legal business disclaimers: http://www.CraneSoftwrights.com/legal
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