Newsticker
**********

This manual is for Newsticker (version 1.8, ``$Id: newsticker.texi,v 1.3 2005/09/15 12:32:15 rms Exp $'').

Copyright © 2004, 2005  Free Software Foundation, Inc.

     Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.  A copy of the license is included in the section entitled ``GNU Free Documentation License''.

Overview
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Newsticker provides a newsticker for Emacs. A newsticker is a thing that asynchronously retrieves headlines from a list of news sites, prepares these headlines for reading, and allows for loading the corresponding articles in a web browser.

Headlines consist of a title and (possibly) a small description. They are contained in RSS (RDF Site Summary) files.  Newsticker should work with all RSS files that follow the RDF Rich Site Summary 1.0 (http://purl.org/rss/1.0/spec) specification. It should also work with version 2.0 as well as other/older/alternative rss formats (like 0.9<something> or such). In other words: Newsticker is a ``RSS reader'' or ``RSS aggregator''.

Newsticker provides several commands for reading headlines, navigating through them, marking them as read/unread, hiding old headlines etc. Headlines can be displayed as plain text or as rendered HTML.

Headlines can be displayed in the echo area, either scrolling like messages in a stock-quote ticker, or just changing.

Newsticker allows for automatic processing of headlines by providing hooks and (sample) functions for automatically downloading images and enclosed files (as delivered by podcasts, e.g.).

Requirements
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Newsticker can be used with GNU Emacs (http://www.gnu.org/software/emacs/emacs.html) version 21.1 or later as well as XEmacs (http://www.xemacs.org).  It requires an XML-parser (xml.el) which is part of GNU Emacs.  If you are using XEmacs you want to get the net-utils package which contains xml.el for XEmacs.

Newsticker requires a program which can retrieve files via http and prints them to stdout.  By default Newsticker will use wget (http://www.gnu.org/software/wget/wget.html) for this task.

Installation
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Place Newsticker in a directory where Emacs can find it. Add the following line to your Emacs startup file (~/.emacs).

     (add-to-list 'load-path "/path/to/newsticker/")
     (autoload 'newsticker-start "newsticker" "Emacs Newsticker" t)
     (autoload 'newsticker-show-news "newsticker" "Emacs Newsticker" t)

Newsticker-mode supports imenu. This allows for navigating with the help of a menu. In order to use this feature you should also add the following.

     (add-hook 'newsticker-mode-hook 'imenu-add-menubar-index)

That's it.

Usage
*****

The command newsticker-show-news will display all available headlines in a special buffer, called *newsticker*.  It will also start the asynchronous download of headlines.  The modeline in the *newsticker* buffer informs whenever new headlines have arrived.  Clicking mouse-button 2 or pressing RET in this buffer on a headline will call browse-url to load the corresponding news story in your favourite web browser.

The scrolling, or flashing of headlines in the echo area, can be started with the command newsticker-start-ticker. It can be stopped with newsticker-stop-ticker.

If you just want to start the periodic download of headlines use the command newsticker-start. Calling newsticker-stop will stop the periodic download, but will call newsticker-stop-ticker as well.

Configuration
*************

All Newsticker options are customizable, i.e. they can be changed with Emacs customization methods: Call the command customize-group and enter newsticker for the customization group.

All Newsticker options have reasonable default values, so that in most cases it is not necessary to customize settings before starting Newsticker for the first time.

Newsticker options are organized in the following groups.

  * newsticker-feed contains options that define which news feeds are retrieved and how this is done.

       * newsticker-url-list defines the list of headlines which are retrieved.

       * newsticker-retrieval-interval defines how often headlines are retrieved.

  * newsticker-headline-processing contains options that define how the retrieved headlines are processed.

       * newsticker-keep-obsolete-items decides whether unread headlines that have been removed from the feed are kept in the Newsticker cache.

  * newsticker-layout contains options that define how the buffer for reading RSS headlines is formatted.

       * newsticker-item-format defines how the title of a headline is formatted.

  * newsticker-ticker contains options that define how headlines are shown in the echo area.

       * newsticker-display-interval and newsticker-scroll-smoothly define how headlines are shown in the echo area.

  * newsticker-hooks contains options for hooking other Emacs commands to newsticker functions.

       * newsticker-new-item-functions allows for automatic processing of headlines. See `newsticker-download-images', and `newsticker-download-enclosures' for sample functions.

  * newsticker-miscellaneous contains other Newsticker options.

Please have a look at the customization buffers for the complete list of options.

Remarks
*******

This newsticker is designed do its job silently in the background without disturbing you.  However, it is probably impossible to prevent such a tool from slightly attenuating your Editor's responsiveness every once in a while.

Byte-compiling newsticker.el is recommended.

GNU Free Documentation License
******************************

                    GNU Free Documentation License
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