Package org.glassfish.pfl.basic.algorithm

Class Printer

java.lang.Object

org.glassfish.pfl.basic.algorithm.Printer

Direct Known Subclasses:

CodegenPrinter

public class Printer
extends Object

Manages printing of indented source code. Line numbers start at 1 and increase by 1 every time nl() is called. Note that the proper use of this class requires calling nl() at the START of every line (thanks, Harold!), which make indentation much easier to manage. For example, an if statement can be printed as nl().p( "if (expr) {" ).in() ; nl().p( "stmt" ).out() ; nl().p( "} else {" ).in() ; nl().p( "stmt" ).out() ;

Field Summary

Fields

Modifier and Type	Field	Description
private StringBuilder	bld
static final int	DEFAULT_INCREMENT
private int	increment
private int	indent
private char[]	pad
private char	padChar
private PrintStream	ps
private int	rightJustificationSize

Constructor Summary

Constructors

Constructor	Description
Printer(PrintStream ps)
Printer(PrintStream ps, int increment, char padChar)

Method Summary

Modifier and Type	Method	Description
private void	fill()
Printer	in()
int	indent()
private boolean	isPrintable(char c)
Printer	nl()
Printer	out()
Printer	p(Object obj)
Printer	p(Object... args)
Printer	p(String str)
Printer	printBuffer(byte[] buffer)
private Printer	rightJustify(String str)
Printer	rj(int size)	Right-Justify the next call to p so that the total number of characters is at least size.

Methods inherited from class java.lang.Object

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

Field Details

DEFAULT_INCREMENT

public static final int DEFAULT_INCREMENT

See Also:

• Constant Field Values

ps

private PrintStream ps

increment

private int increment

padChar

private char padChar

indent

private int indent

pad

private char[] pad

bld

private StringBuilder bld

rightJustificationSize

private int rightJustificationSize

Constructor Details

Printer

public Printer(PrintStream ps)

Printer

public Printer(PrintStream ps,
 int increment,
 char padChar)

Method Details

rj

public Printer rj(int size)

Right-Justify the next call to p so that the total number of characters is at least size. Use leading spaces if necessary to ensure this.

rightJustify

private Printer rightJustify(String str)

p

public Printer p(String str)

p

public Printer p(Object... args)

p

public Printer p(Object obj)

in

public Printer in()

out

public Printer out()

indent

public int indent()

fill

private void fill()

nl

public Printer nl()

isPrintable

private boolean isPrintable(char c)

printBuffer

public Printer printBuffer(byte[] buffer)