org.apache.commons.feedparser.tools
Class RFC822DateParser

java.lang.Object
  |
  +--org.apache.commons.feedparser.tools.RFC822DateParser

public class RFC822DateParser

extends java.lang.Object

RFC 822 date parsing utility. Designed for parsing the ISO subset used in Dublin Core, RSS 1.0, and Atom. http://asg.web.cmu.edu/rfc/rfc822.html#sec-5 5.1 SYNTAX date-time = [ day "," ] date time ; dd mm yy ; hh:mm:ss zzz day = "Mon" / "Tue" / "Wed" / "Thu" / "Fri" / "Sat" / "Sun" date = 1*2DIGIT month 2DIGIT ; day month year ; e.g. 20 Jun 82 month = "Jan" / "Feb" / "Mar" / "Apr" / "May" / "Jun" / "Jul" / "Aug" / "Sep" / "Oct" / "Nov" / "Dec" time = hour zone ; ANSI and Military hour = 2DIGIT ":" 2DIGIT [":" 2DIGIT] ; 00:00:00 - 23:59:59 zone = "UT" / "GMT" ; Universal Time ; North American : UT / "EST" / "EDT" ; Eastern: - 5/ - 4 / "CST" / "CDT" ; Central: - 6/ - 5 / "MST" / "MDT" ; Mountain: - 7/ - 6 / "PST" / "PDT" ; Pacific: - 8/ - 7 / 1ALPHA ; Military: Z = UT; ; A:-1; (J not used) ; M:-12; N:+1; Y:+12 / ( ("+" / "-") 4DIGIT ) ; Local differential ; hours+min. (HHMM) 5.2 SEMANTICS If included, day-of-week must be the day implied by the date specification. Time zone may be indicated in several ways. "UT" is Univer- sal Time (formerly called "Greenwich Mean Time"); "GMT" is per- mitted as a reference to Universal Time. The military standard uses a single character for each zone. "Z" is Universal Time. "A" indicates one hour earlier, and "M" indicates 12 hours ear- lier; "N" is one hour later, and "Y" is 12 hours later. The letter "J" is not used. The other remaining two forms are taken from ANSI standard X3.51-1975. One allows explicit indication of the amount of offset from UT; the other uses common 3-character strings for indicating time zones in North America.

Version:

$Id: RFC822DateParser.java 155416 2005-02-26 13:00:10Z dirkv $

Constructor Summary

RFC822DateParser()

Method Summary

static java.util.Date	parse(java.lang.String input)
static java.lang.String	toString(java.util.Date date, java.util.TimeZone tz)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

RFC822DateParser

public RFC822DateParser()

Method Detail

parse

public static java.util.Date parse(java.lang.String input)
                            throws java.text.ParseException

java.text.ParseException

toString

public static java.lang.String toString(java.util.Date date,
                                        java.util.TimeZone tz)