com.starbase.diff
Class BasicColumnMask

java.lang.Object
  |
  +--com.starbase.diff.BasicColumnMask

All Implemented Interfaces:

ColumnMask

public class BasicColumnMask

extends java.lang.Object

implements ColumnMask

This class implements the ColumnMask interface. It supports masks deinfed as a column range (e.g. columns 2-4) an optionally require the first character to be numeric. This is a common type of mask and is used by PVCS.

Constructor Summary

BasicColumnMask(int first, int last, boolean numeric)
Construct a new BasiColumn mask from first to last (inclusive).

Method Summary

java.lang.String	debugDump() Returns a string used for debugging and testing
int	skipBy(int column, CharSequence sequence) return distance to skip from column if this ColumnMask includes this column.

Methods inherited from class java.lang.Object

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

Constructor Detail

BasicColumnMask

public BasicColumnMask(int first,
                       int last,
                       boolean numeric)

Construct a new BasiColumn mask from first to last (inclusive). If numeric is true then the column will only be masked if the character in the first column is a digit.

Method Detail

skipBy

public int skipBy(int column,
                  CharSequence sequence)

return distance to skip from column if this ColumnMask includes this column. Should return 0 if not skipped.

Specified by:

skipBy in interface ColumnMask

debugDump

public java.lang.String debugDump()

Returns a string used for debugging and testing