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rnc-mode

rnc-mode is an Emacs major mode for editing XML schemas in RELAX-NG Compact syntax.

The mode was originally written by David Rosenborg at Pantor Engineering, but recently canonical URL for the mode stopped working, and the code didn't run in Emacs 23 and later without some minor modifications.

This repo contains an updated version of rnc-mode that works in GNU Emacs 23 and later: I have not tried it on XEmacs. It also has some new features, such as on-the-fly syntax checking.

Installation

Put rnc-mode.el in your Emacs path and add the following to your Emacs initialization file:

(autoload 'rnc-mode "rnc-mode")
(add-to-list 'auto-mode-alist '("\\.rnc\\'" . rnc-mode))

If you are using Emacs 24 or Emacs 23 with packages.el you can install it with the package manager from the MELPA package archive. Put the following in your initialization file:

(add-to-list 'package-archives '("melpa" . "http://melpa.milkbox.net/packages/") t)
(package-initialize)

On-the-fly Syntax Checking with Flymake and Jing

You can perform on-the-fly syntax checking of your schema using Jing and Flymake. Two variables control this setting:

  • Variable: rnc-jing-jar-file

    The value of this variable is a string, the pathname of the JING jar file.

  • Variable: rnc-enable-flymake

    When this variable is t flymake is enabled when an RNC file is loaded. If it is nil then you can control when syntax checking is enabled with M-x flymake-mode.

For example:

(setq rnc-enable-flymake t
      rnc-jing-jar-file (expand-file-name "~/src/jing-20091111/bin/jing.jar")

Currently this only works with single-file schema.

Imenu Support

You can use Imenu to get an alphabetically sorted list of patterns, namespaces, datatypes, and includes in the file.

  • Variable: rnc-enable-imenu

    When this variable is t an RNC menu added to the menu bar containing the patterns, namespaces, datatypes, and includes in the current file.

For example,

(setq rnc-enable-imenu t)

License

I am not the original author.

Copyright © 2002 Pantor Engineering AB.

Additions (Flymake support) are Copyright © 2012 Thomas R Emerson.

Distributed under the BSD Revised License.