Package org.jline.builtins

Class Less

java.lang.Object

org.jline.builtins.Less

public class Less
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) static class	Less.InterruptibleInputStream
private class	Less.LineEditor
protected static enum	Less.Operation
(package private) static class	Less.Pair<U,V>
private class	Less.SavedSourcePositions

Field Summary

Fields

Modifier and Type	Field	Description
protected final BindingReader	bindingReader
protected final StringBuilder	buffer
boolean	chopLongLines
protected final Path	currentDir
protected final Display	display
protected String	displayPattern
protected String	errorMessage
private static final int	ESCAPE
protected int	firstColumnToDisplay
protected int	firstLineInMemory
protected int	firstLineToDisplay
protected int	halfWindow
private boolean	highlight
private String	historyLog
boolean	ignoreCaseAlways
boolean	ignoreCaseCond
protected KeyMap<Less.Operation>	keys
protected List<AttributedString>	lines
protected String	message
private static final String	MESSAGE_FILE_INFO
private boolean	nanorcIgnoreErrors
protected int	nbEof
boolean	noInit
boolean	noKeypad
protected int	offsetInLine
protected final Map<String,Less.Operation>	options
protected String	pattern
protected Nano.PatternHistory	patternHistory
boolean	printLineNumbers
boolean	quiet
boolean	quitAtFirstEof
boolean	quitAtSecondEof
boolean	quitIfOneScreen
protected BufferedReader	reader
protected final Size	size
protected int	sourceIdx
protected List<Source>	sources
private final List<Path>	syntaxFiles
(package private) SyntaxHighlighter	syntaxHighlighter
protected String	syntaxName
protected List<Integer>	tabs
protected final Terminal	terminal
boolean	veryQuiet
protected int	window

Constructor Summary

Constructors

Constructor	Description
Less(Terminal terminal, Path currentDir)
Less(Terminal terminal, Path currentDir, Options opts)
Less(Terminal terminal, Path currentDir, Options opts, ConfigurationPath configPath)

Method Summary

Modifier and Type	Method	Description
private void	addFile()
private void	addSource(String file)
private void	bindKeys(KeyMap<Less.Operation> map)
private void	bof()
static void	checkInterrupted()	This is for long running commands to be interrupted by ctrl-c
(package private) boolean	display(boolean oneScreen)
(package private) boolean	display(boolean oneScreen, Integer curPos)
private void	doTabs(String val)
private void	eof()
(package private) AttributedString	getLine(int line)
private Pattern	getPattern()
private Pattern	getPattern(boolean doDisplayPattern)
(package private) int	getStrictPositiveNumberInBuffer(int def)
void	handle(Terminal.Signal signal)
private void	help()
(package private) void	moveBackward(int lines)
(package private) void	moveForward(int lines)
(package private) void	moveTo(int lineNum)
private void	moveToMatch(boolean forward, boolean spanFiles)
private void	moveToNextMatch()
private void	moveToNextMatch(boolean spanFiles)
private void	moveToPreviousMatch()
private void	moveToPreviousMatch(boolean spanFiles)
private Less.Pair<Integer,AttributedString>	nextLine2display(int line, Pattern dpCompiled)
protected void	openSource()
private void	parseConfig(Path file)
private Less.Pair<Integer,AttributedString>	prevLine2display(int line, Pattern dpCompiled)
private String	printable(String s)
void	run(List<Source> sources)
void	run(Source... sources)
private boolean	search()
Less	tabs(List<Integer> tabs)
private boolean	toBeDisplayed(AttributedString curLine, Pattern dpCompiled)
static String[]	usage()

Methods inherited from class java.lang.Object

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

Field Details

ESCAPE

private static final int ESCAPE

See Also:

• Constant Field Values

MESSAGE_FILE_INFO

private static final String MESSAGE_FILE_INFO

See Also:

• Constant Field Values

quitAtSecondEof

public boolean quitAtSecondEof

quitAtFirstEof

public boolean quitAtFirstEof

quitIfOneScreen

public boolean quitIfOneScreen

printLineNumbers

public boolean printLineNumbers

quiet

public boolean quiet

veryQuiet

public boolean veryQuiet

chopLongLines

public boolean chopLongLines

ignoreCaseCond

public boolean ignoreCaseCond

ignoreCaseAlways

public boolean ignoreCaseAlways

noKeypad

public boolean noKeypad

noInit

public boolean noInit

tabs

protected List<Integer> tabs

syntaxName

protected String syntaxName

historyLog

private String historyLog

terminal

protected final Terminal terminal

display

protected final Display display

bindingReader

protected final BindingReader bindingReader

currentDir

protected final Path currentDir

sources

protected List<Source> sources

sourceIdx

protected int sourceIdx

reader

protected BufferedReader reader

keys

protected KeyMap<Less.Operation> keys

firstLineInMemory

protected int firstLineInMemory

lines

protected List<AttributedString> lines

firstLineToDisplay

protected int firstLineToDisplay

firstColumnToDisplay

protected int firstColumnToDisplay

offsetInLine

protected int offsetInLine

message

protected String message

errorMessage

protected String errorMessage

buffer

protected final StringBuilder buffer

options

protected final Map<String,Less.Operation> options

window

protected int window

halfWindow

protected int halfWindow

nbEof

protected int nbEof

patternHistory

protected Nano.PatternHistory patternHistory

pattern

protected String pattern

displayPattern

protected String displayPattern

size

protected final Size size

syntaxHighlighter

SyntaxHighlighter syntaxHighlighter

syntaxFiles

private final List<Path> syntaxFiles

highlight

private boolean highlight

nanorcIgnoreErrors

private boolean nanorcIgnoreErrors

Constructor Details

Less

public Less(Terminal terminal,
 Path currentDir)

Less

public Less(Terminal terminal,
 Path currentDir,
 Options opts)

Less

public Less(Terminal terminal,
 Path currentDir,
 Options opts,
 ConfigurationPath configPath)

Method Details

usage

public static String[] usage()

parseConfig

private void parseConfig(Path file)
                  throws IOException

Throws:

IOException

doTabs

private void doTabs(String val)

tabs

public Less tabs(List<Integer> tabs)

handle

public void handle(Terminal.Signal signal)

run

public void run(Source... sources)
         throws IOException,
InterruptedException

Throws:

IOException

InterruptedException

run

public void run(List<Source> sources)
         throws IOException,
InterruptedException

Throws:

IOException

InterruptedException

moveToMatch

private void moveToMatch(boolean forward,
 boolean spanFiles)
                  throws IOException

Throws:

IOException

addSource

private void addSource(String file)
                throws IOException

Throws:

IOException

addFile

private void addFile()
              throws IOException,
InterruptedException

Throws:

IOException

InterruptedException

search

private boolean search()
                throws IOException,
InterruptedException

Throws:

IOException

InterruptedException

help

private void help()
           throws IOException

Throws:

IOException

openSource

protected void openSource()
                   throws IOException

Throws:

IOException

moveTo

void moveTo(int lineNum)
     throws IOException

Throws:

IOException

moveToNextMatch

private void moveToNextMatch()
                      throws IOException

Throws:

IOException

moveToNextMatch

private void moveToNextMatch(boolean spanFiles)
                      throws IOException

Throws:

IOException

moveToPreviousMatch

private void moveToPreviousMatch()
                          throws IOException

Throws:

IOException

moveToPreviousMatch

private void moveToPreviousMatch(boolean spanFiles)
                          throws IOException

Throws:

IOException

printable

private String printable(String s)

moveForward

void moveForward(int lines)
          throws IOException

Throws:

IOException

moveBackward

void moveBackward(int lines)
           throws IOException

Throws:

IOException

eof

private void eof()

bof

private void bof()

getStrictPositiveNumberInBuffer

int getStrictPositiveNumberInBuffer(int def)

nextLine2display

private Less.Pair<Integer,AttributedString> nextLine2display(int line,
 Pattern dpCompiled)
                                                      throws IOException

Throws:

IOException

prevLine2display

private Less.Pair<Integer,AttributedString> prevLine2display(int line,
 Pattern dpCompiled)
                                                      throws IOException

Throws:

IOException

toBeDisplayed

private boolean toBeDisplayed(AttributedString curLine,
 Pattern dpCompiled)

display

boolean display(boolean oneScreen)
         throws IOException

Throws:

IOException

display

boolean display(boolean oneScreen,
 Integer curPos)
         throws IOException

Throws:

IOException

getPattern

private Pattern getPattern()

getPattern

private Pattern getPattern(boolean doDisplayPattern)

getLine

AttributedString getLine(int line)
                  throws IOException

Throws:

IOException

checkInterrupted

public static void checkInterrupted()
                             throws InterruptedException

This is for long running commands to be interrupted by ctrl-c

Throws:

InterruptedException - if the thread has been interruped

bindKeys

private void bindKeys(KeyMap<Less.Operation> map)