org.unix4j.unix.sed

Class AbstractSedProcessor

java.lang.Object

org.unix4j.unix.sed.AbstractSedProcessor

All Implemented Interfaces:

LineProcessor

Direct Known Subclasses:

AbstractRegexpProcessor, TranslateProcessor

abstract class AbstractSedProcessor
extends Object
implements LineProcessor

Field Summary

Fields

Modifier and Type	Field and Description
protected SedArguments	args
protected Command	command
protected LineProcessor	output

Constructor Summary

Constructors

Constructor and Description
AbstractSedProcessor(Command command, SedArguments args, LineProcessor output)

Method Summary

Modifier and Type	Method and Description
void	finish() Indicates that this line processing task is complete and can finished.
protected static String	getRegexp(SedArguments args) Returns the regexp operand from args, either called "regexp" or "string1".
protected static String	getReplacement(SedArguments args) Returns the replacement operand from args, either called "replacement" or "string2".
protected static int	indexOfNextDelimiter(String script, int indexOfPreviousDelimiter) Returns the index of the next delimiter in the given sed script.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.unix4j.processor.LineProcessor

processLine

Field Detail

command

protected final Command command

args

protected final SedArguments args

output

protected final LineProcessor output

Constructor Detail

AbstractSedProcessor

public AbstractSedProcessor(Command command,
                            SedArguments args,
                            LineProcessor output)

Method Detail

finish

public void finish()

Description copied from interface: LineProcessor

Indicates that this line processing task is complete and can finished.

Simple output devices usually perform a flush operation in this method. More complex commands may perform the real operation in this method, for instance write the total count of lines or words to the target file or stream.

Specified by:

finish in interface LineProcessor

getRegexp

protected static String getRegexp(SedArguments args)

Returns the regexp operand from args, either called "regexp" or "string1". If none of the two is set, an empty string is returned.

Parameters:

args - the args with operand values

Returns:

the regexp argument from "regexp" or "string1" or an empty string of none of the two operands is set

getReplacement

protected static String getReplacement(SedArguments args)

Returns the replacement operand from args, either called "replacement" or "string2". If none of the two is set, an empty string is returned.

Parameters:

args - the args with operand values

Returns:

the replacement argument from "replacement" or "string2" or an empty string of none of the two operands is set

indexOfNextDelimiter

protected static int indexOfNextDelimiter(String script,
                                          int indexOfPreviousDelimiter)

Returns the index of the next delimiter in the given sed script. The character at indexOfPreviousDelimiter is taken as delimiter. The method handles escaped delimiters and returns -1 if no further delimiter is found.

Parameters:

script - the script to analyze

indexOfPreviousDelimiter - the index of the previous delimiter

Returns:

the index of the next delimiter after indexOfPreviousDelimiter, or -1 if no further delimiter exists of if indexOfNextDelimiter < 0