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Perl in a Nutshell, 2nd Edition
book

Perl in a Nutshell, 2nd Edition

by Nathan Patwardhan, Ellen Siever, Stephen Spainhour
June 2002
Beginner content levelBeginner
759 pages
80h 42m
English
O'Reilly Media, Inc.
Content preview from Perl in a Nutshell, 2nd Edition

The News::Newsrc Module

Most Unix-based newsreaders parse and extract your newsgroup information from a .newsrc file. This file contains an entry for each newsgroup, with the name of the group and a comma-separated list of article numbers from 1 to the current article. The first entry in the list shows articles that have been read; the remaining entries list unread articles. Each entry also has a colon (:) following the name if you are subscribed to that newsgroup, or an exclamation point (!) if you are currently unsubscribed.

To read a newsgroup, your newsreader needs to be connected to an NNTP server. The newsreader then checks the .newsrc entry for that newsgroup to determine which articles you haven’t read, and displays the first unread article. You can then read the articles sequentially or select which articles you want to read. When you “catch-up” a newsgroup by marking all the articles as “read”, or when you exit from the newsreader program, your .newsrc file is updated to reflect your activity during that session.

The News::Newsrc module provides methods for managing your .newsrc file. Some of the functions it provides include letting you add, remove, or reorder newsgroups; subscribe to or unsubscribe from newsgroups; and mark articles as read or unmark them. Unless you tell it to rearrange the order of the newsgroups in .newsrc, News::Newsrc leaves the order unchanged.

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Publisher Resources

ISBN: 0596002416Errata Page