jflex

Class Emitter

java.lang.Object

jflex.Emitter

public final class Emitter
extends java.lang.Object

This class manages the actual code generation, putting the scanner together, filling in skeleton sections etc.

Table compression, String packing etc. is also done here.

Version:

JFlex 1.7.0

Author:

Gerwin Klein

Constructor Summary

Constructors

Constructor and Description
Emitter(java.io.File inputFile, LexParse parser, DFA dfa) Emits the java code.

Method Summary

Modifier and Type	Method and Description
void	emit() Main Emitter method.
void	emitActionTable() emitActionTable.
static boolean	endsWithJavadoc(java.lang.StringBuilder usercode) Try to find out if user code ends with a javadoc comment, maybe followed by one or more annotations
static java.lang.String	getBaseName(java.lang.String className) Computes base name of the class name.
static java.io.File	normalize(java.lang.String name, java.io.File input) Constructs a file in Options.getDir() or in the same directory as another file.

Methods inherited from class java.lang.Object

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

Constructor Detail

Emitter

public Emitter(java.io.File inputFile,
               LexParse parser,
               DFA dfa)
        throws java.io.IOException

Emits the java code.

Parameters:

inputFile - input grammar.

parser - a LexParse.

dfa - a DFA.

Throws:

java.io.IOException - if any.

Method Detail

getBaseName

public static java.lang.String getBaseName(java.lang.String className)

Computes base name of the class name. Needs to take into account generics.

Parameters:

className - Class name for which to construct the base name

Returns:

the

See Also:

LexScan.className

normalize

public static java.io.File normalize(java.lang.String name,
                                     java.io.File input)

Constructs a file in Options.getDir() or in the same directory as another file. Makes a backup if the file already exists.

Parameters:

name - the name (without path) of the file

input - fall back location if path = null (expected to be a file in the directory to write to)

Returns:

The constructed File

endsWithJavadoc

public static boolean endsWithJavadoc(java.lang.StringBuilder usercode)

Try to find out if user code ends with a javadoc comment, maybe followed by one or more annotations

Parameters:

usercode - the user code

Returns:

true if it ends with a javadoc comment and zero or more annotations

emitActionTable

public void emitActionTable()

emitActionTable.

emit

public void emit()

Main Emitter method.