Package jflex.generator

Class CountEmitter

java.lang.Object

jflex.generator.PackEmitter

jflex.generator.CountEmitter

Direct Known Subclasses:

HiCountEmitter

public class CountEmitter
extends PackEmitter

An emitter for an array encoded as count/value pairs in a string.

Version:

JFlex 1.9.1

Field Summary

Fields

Modifier and Type	Field	Description
protected int	numEntries	number of entries in expanded array
protected int	translate	translate all values by this amount

Fields inherited from class jflex.generator.PackEmitter

chunks, name, out

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	CountEmitter(java.lang.String name)	Create a count/value emitter for a specific field with values in the range of [0..0xFFFF].
protected	CountEmitter(java.lang.String name, int translate)	Create a count/value emitter for a specific field with translated values in the range of [0..0xFFFF].

Method Summary

Modifier and Type	Method	Description
void	emit(int count, int value)	Emit one count/value pair.
void	emitCountValueString(int[] a)	Emits a plain int array as a count/value string.
static CountEmitter	emitter(int states, int translation, java.lang.String name)
void	emitUnpack()	Emits count/value unpacking code for the generated array.
protected void	emitUnpackChunk()	Emits count/value unpacking code for one chunk of the generated array.
protected void	emitValue(int value)	Emit one value.

Methods inherited from class jflex.generator.PackEmitter

breaks, constName, emitInit, emitUC, nl, println, toString

Methods inherited from class java.lang.Object

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

Field Detail

numEntries

protected int numEntries

number of entries in expanded array

translate

protected int translate

translate all values by this amount

Constructor Detail

CountEmitter

protected CountEmitter(java.lang.String name)

Create a count/value emitter for a specific field with values in the range of [0..0xFFFF].

Parameters:

name - name of the generated array

CountEmitter

protected CountEmitter(java.lang.String name,
                       int translate)

Create a count/value emitter for a specific field with translated values in the range of [0..0xFFFF].

Parameters:

name - name of the generated array

translate - translate all values by this amount, e.g provide +1 to allow values in [-1, 0xFFFE]

Method Detail

emitUnpack

public void emitUnpack()

Emits count/value unpacking code for the generated array.

Specified by:

emitUnpack in class PackEmitter

See Also:

PackEmitter.emitUnpack()

emitUnpackChunk

protected void emitUnpackChunk()

Emits count/value unpacking code for one chunk of the generated array. Base class assumes values are in [0, 0xFFFF]. Subclasses may override.

See Also:

emitUnpack()

emit

public void emit(int count,
                 int value)

Emit one count/value pair.

Automatically translates value by the translate value.

Parameters:

count - a int.

value - a int.

emitValue

protected void emitValue(int value)

Emit one value. Base class assumes range [0, 0xFFFF], subclasses may override.

Parameters:

value - integer value to emit, assumed to be in the range [0, 0xFFFF]

emitCountValueString

public void emitCountValueString(int[] a)

Emits a plain int array as a count/value string. Expects the preamble code (declaration, javadoc) to already be emitted. Values in the array must be no larger than 0xFFFF (encoded as char), array must have at least one element.

emitter

public static CountEmitter emitter(int states,
                                   int translation,
                                   java.lang.String name)