[[ja:カテゴリ・XML]]
These are some packages used for XML processing in Emacs or XEmacs:

* [[Icicles - Search Commands, Overview|Icicles Search]] has commands to search the contents of selected XML elements (e.g. those in the [[region]]):
** '''`icicle-search-xml-element'''' -- search elements whose names match a [[regexp]]
** '''`icicle-search-thing'''' with thing-type `sexp' -- when in `nxml-mode'.  Option `nxml-sexp-element-flag' controls what [[sexp]] means -- set it to `t' if you want whole elements as sexps.
* NxmlMode -- Major mode for emacs.  Probably the best available mode for XML.
* PsgmlMode -- major mode for editing SGML and XML documents.  This is more complicated, and feature rich than XmlMode, but less flexible.  If you have a validating DTD for your XML, using PSGML will provide a variety of very useful features, most notably context sensitive help in inserting tags and attributes.
* XmlMode -- editing XML, indentation, font-lock offered. simpler than PSGML, doesn't try to parse DTD.
* XmlParser -- programming with XML, see also XmlParserExamples
* XmlSoxMode -- edit XML in a [http://www.langdale.com.au/SOX/ SOX] view.
* [http://www.menteith.com/wiki/xslide xslide] -- major mode for editing XSLT
* [http://xslt-process.sourceforge.net/ XSLT-process] -- minor mode for doing XSLT processing and debugging
* [https://github.com/maksle/xslt-dependencies XSLT-dependencies] -- minor mode for viewing XSLT 1.0 dependencies in a graph
* XmlRpc -- package for RPC calls using XML.
* TeXmacs -- intends to support native editing of XML documents (not quite Emacs, but it has a similar spirit)
* DtmlMode -- editing Zope's DTML
* DocbookXmlMode -- Major mode for Emacs with specific knowledge of the DocBook catalog.
* TextEncodingInitiativeEmacs -- Emacs distribution for authoring TEI XML documents.
* [http://xae.sunsite.dk/ XAE] -- XML Authoring Environment for Emacs (link is broken).
* XmlCoding -- coding system from ?xml tag (Emacs 21)
* XmlGen -- sexp -> xml generation.
* EmacsSvg -- Page about SVG support in GnuEmacs and related software for editing SVG in Emacs

Here is an article by BrianGillan (IBM) on Getting and installing
Emacs, Adding PSGML for SGML and XML modes, Editing a document with
PSGML, and Using SP or <nowiki>OpenSP</nowiki> for SGML and XML
validation...

* http://www-106.ibm.com/developerworks/xml/library/x-emacs/

From the BobDuCharme book SGML CD, here is a longish (99 pages) chapter on using Emacs to edit SGML/XML files using PSGML. Also contains Polish and Russian translations.

* http://www.snee.com/bob/sgmlfree/

DTD

* [http://www.menteith.com/wiki/tdtd/ tdtd] -- Emacs mode for editing DTDs