com.sun.tools.javac.util
Interface Position.LineMap

All Superinterfaces:

LineMap

All Known Implementing Classes:

Position.LineMapImpl, Position.LineTabMapImpl

Enclosing class:

Position

public static interface Position.LineMap
extends LineMap

Method Summary

int	getColumnNumber(int pos) Find the column for a character position.
int	getLineNumber(int pos) Find the line containing a position; a line termination character is on the line it terminates.
int	getPosition(int line, int column) Find the position corresponding to a (line,column).
int	getStartPosition(int line) Find the start position of a line.

Methods inherited from interface com.sun.source.tree.LineMap

getColumnNumber, getLineNumber, getPosition, getStartPosition

Method Detail

getStartPosition

int getStartPosition(int line)

Find the start position of a line.

Parameters:

line - number of line (first is 1)

Returns:

position of first character in line

Throws:

java.lang.ArrayIndexOutOfBoundsException - if lineNumber < 1 if lineNumber > no. of lines

getPosition

int getPosition(int line,
                int column)

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

Parameters:

line - number of line (first is 1)

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

Returns:

position of character

Throws:

java.lang.ArrayIndexOutOfBoundsException - if line < 1 if line > no. of lines

getLineNumber

int getLineNumber(int pos)

Find the line containing a position; a line termination character is on the line it terminates.

Parameters:

pos - character offset of the position

Returns:

the line number on which pos occurs (first line is 1)

getColumnNumber

int getColumnNumber(int pos)

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

Parameters:

pos - character offset of the position

Returns:

the column number at which pos occurs