org.apache.log4j.helpers
Class PatternParser

java.lang.Object
  org.apache.log4j.helpers.PatternParser

Direct Known Subclasses:

BridgePatternParser

public class PatternParser
extends Object

Most of the work of the PatternLayout class is delegated to the PatternParser class.

It is this class that parses conversion patterns and creates a chained list of OptionConverters.

Since:

0.8.2

Author:

James P. Cakalic, Ceki Gülcü, Anders Kristensen

Field Summary

protected StringBuffer	currentLiteral
protected FormattingInfo	formattingInfo
protected int	i
protected String	pattern
protected int	patternLength

Constructor Summary

PatternParser(String pattern)

Method Summary

protected void	addConverter(PatternConverter pc)
protected String	extractOption()
protected int	extractPrecisionOption() The option is expected to be in decimal and positive.
protected void	finalizeConverter(char c)
PatternConverter	parse()

Methods inherited from class java.lang.Object

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

Field Detail

currentLiteral

protected StringBuffer currentLiteral

patternLength

protected int patternLength

i

protected int i

formattingInfo

protected FormattingInfo formattingInfo

pattern

protected String pattern

Constructor Detail

PatternParser

public PatternParser(String pattern)

Method Detail

extractOption

protected String extractOption()

extractPrecisionOption

protected int extractPrecisionOption()

The option is expected to be in decimal and positive. In case of error, zero is returned.

parse

public PatternConverter parse()

finalizeConverter

protected void finalizeConverter(char c)

addConverter

protected void addConverter(PatternConverter pc)