de.vandermeer.skb.base.shell

Class Ci_History

Object

AbstractCommandInterpreter

Ci_History

All Implemented Interfaces:

CommandInterpreter

public class Ci_History
extends AbstractCommandInterpreter

An interpreter for the 'history' shell command.

Since:

v0.1.2

Version:

v0.2.0 build 170404 (04-Apr-17) for Java 1.8

Author:

Sven van der Meer <vdmeer.sven@mykolab.com>

Field Summary

Fields

Modifier and Type	Field and Description
static SkbShellCommand	HISTORY The command for history using 'history'.
static SkbShellCommand	HISTORY_EM The command for history using '!' (exclamation mark).
protected SkbShell	skbsh Link to the calling shell to retrieve history from.

Constructor Summary

Constructors

Constructor and Description
Ci_History(SkbShell skbsh) Returns an new 'history' command interpreter.

Method Summary

Modifier and Type	Method and Description
int	interpretCommand(String command, LineParser lp, MessageMgr mm) Interprets the given command.

Methods inherited from class AbstractCommandInterpreter

getCommands, getCommandStrings

Methods inherited from class Object

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

Field Detail

HISTORY

public static final SkbShellCommand HISTORY

The command for history using 'history'.

HISTORY_EM

public static final SkbShellCommand HISTORY_EM

The command for history using '!' (exclamation mark).

skbsh

protected final SkbShell skbsh

Link to the calling shell to retrieve history from.

Constructor Detail

Ci_History

public Ci_History(SkbShell skbsh)

Returns an new 'history' command interpreter.

Parameters:

skbsh - the calling shell to retrieve history information from

Throws:

IllegalArgumentException - if the parameter is null

Method Detail

interpretCommand

public int interpretCommand(String command,
                            LineParser lp,
                            MessageMgr mm)

Description copied from interface: CommandInterpreter

Interprets the given command.

Parameters:

command - command for interpretation

lp - a parser with the whole command line

mm - the message manager to use for reporting errors, warnings, and infos

Returns:

-3 if any of the input parameters was null, blank or not correct -2 if command was found and interpreted but leads to an exit command for the shell, -1 if command not part of this interpreter, 0 if command was found and interpretation was successful and did not lead to an exit command (exit shell), greater than 0 otherwise (command found, interpreted, but some errors occurred)