Package org.antlr.runtime

Class ANTLRFileStream

java.lang.Object

org.antlr.runtime.ANTLRStringStream

org.antlr.runtime.ANTLRFileStream

All Implemented Interfaces:

CharStream, IntStream

public class ANTLRFileStream
extends ANTLRStringStream

This is a char buffer stream that is loaded from a file all at once when you construct the object. This looks very much like an ANTLReader or ANTLRInputStream, but it's a special case since we know the exact size of the object to load. We can avoid lots of data copying.

Field Summary

Fields

Modifier and Type	Field	Description
protected String	fileName

Fields inherited from class org.antlr.runtime.ANTLRStringStream

charPositionInLine, data, lastMarker, line, markDepth, markers, n, name, p

Fields inherited from interface org.antlr.runtime.CharStream

EOF

Constructor Summary

Constructors

Constructor	Description
ANTLRFileStream(String fileName)
ANTLRFileStream(String fileName, String encoding)

Method Summary

Modifier and Type	Method	Description
String	getSourceName()	Where are you getting symbols from? Normally, implementations will pass the buck all the way to the lexer who can ask its input stream for the file name or whatever.
void	load(String fileName, String encoding)

Methods inherited from class org.antlr.runtime.ANTLRStringStream

consume, getCharPositionInLine, getLine, index, LA, LT, mark, release, reset, rewind, rewind, seek, setCharPositionInLine, setLine, size, substring, toString

Methods inherited from class java.lang.Object

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

Field Detail

fileName

protected String fileName

Constructor Detail

ANTLRFileStream

public ANTLRFileStream(String fileName)
                throws IOException

Throws:

IOException

ANTLRFileStream

public ANTLRFileStream(String fileName,
                       String encoding)
                throws IOException

Throws:

IOException

Method Detail

load

public void load(String fileName,
                 String encoding)
          throws IOException

Throws:

IOException

getSourceName

public String getSourceName()

Description copied from interface: IntStream

Where are you getting symbols from? Normally, implementations will pass the buck all the way to the lexer who can ask its input stream for the file name or whatever.

Specified by:

getSourceName in interface IntStream

Overrides:

getSourceName in class ANTLRStringStream