com.sun.tools.javac.util
Class Position.LineTabMapImpl

java.lang.Object
  com.sun.tools.javac.util.Position.LineMapImpl
      com.sun.tools.javac.util.Position.LineTabMapImpl

All Implemented Interfaces:

LineMap, Position.LineMap

Enclosing class:

Position

public static class Position.LineTabMapImpl
extends Position.LineMapImpl

A LineMap that handles tab expansion correctly. The cost is an additional bit per character in the source array.

Field Summary

private java.util.BitSet

tabMap

Fields inherited from class com.sun.tools.javac.util.Position.LineMapImpl

startPosition

Constructor Summary

Position.LineTabMapImpl(int max)

Method Summary

int	getColumnNumber(int pos) Find the column for a character position.
int	getPosition(int line, int column) Find the position corresponding to a (line,column).
protected void	setTabPosition(int offset)

Methods inherited from class com.sun.tools.javac.util.Position.LineMapImpl

build, getColumnNumber, getLineNumber, getLineNumber, getPosition, getStartPosition, getStartPosition

Methods inherited from class java.lang.Object

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

Field Detail

tabMap

private java.util.BitSet tabMap

Constructor Detail

Position.LineTabMapImpl

public Position.LineTabMapImpl(int max)

Method Detail

setTabPosition

protected void setTabPosition(int offset)

Overrides:

setTabPosition in class Position.LineMapImpl

getColumnNumber

public int getColumnNumber(int pos)

Description copied from interface: Position.LineMap

Find the column for a character position. Note: this method does not handle tab expansion. If tab expansion is needed, use a LineTabMap instead.

Specified by:

getColumnNumber in interface Position.LineMap

Overrides:

getColumnNumber in class Position.LineMapImpl

Parameters:

pos - character offset of the position

Returns:

the column number at which pos occurs

getPosition

public int getPosition(int line,
                       int column)

Description copied from interface: Position.LineMap

Find the position corresponding to a (line,column).

Specified by:

getPosition in interface Position.LineMap

Overrides:

getPosition in class Position.LineMapImpl

Parameters:

line - number of line (first is 1)

column - number of character on line (first is 1)

Returns:

position of character