com.starteam.diff
Class ColumnMask

java.lang.Object
  com.starteam.diff.ColumnMask

public final class ColumnMask
extends java.lang.Object

This class supports masks defined 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

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

Method Summary

java.lang.String	getDebugString() 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

ColumnMask

public ColumnMask(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.

Parameters:

first - from the first column

last - to the last column

numeric - the type of mask

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.

Parameters:

column - the column to skip

sequence - the char sequence to apply

getDebugString

public java.lang.String getDebugString()

Returns a string used for debugging and testing

Returns:

a string used for debugging