org.unix4j.unix.uniq

Class CountUtil

java.lang.Object

org.unix4j.unix.uniq.CountUtil

class CountUtil
extends Object

Helper class to format count output of the uniq command.

Method Summary

Modifier and Type	Method and Description
static String	formatCount(long count, int countDigits) Formats the given count value to the fixed string length maxDigitsForCount padding it with spaces from the left if necessary.
static int	writeCountLine(Line line, long count, int countDigits, LineProcessor output) Writes the given line prefixed with the count using the format ' ' + <count> + ' ' + <line> and using formatCount(long, int) to format <count>.

Methods inherited from class java.lang.Object

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

Method Detail

formatCount

public static String formatCount(long count,
                                 int countDigits)

Formats the given count value to the fixed string length maxDigitsForCount padding it with spaces from the left if necessary. Note that the returned string can be longer than maxDigitsForCount as values are never truncated.

Parameters:

count - the count value to format

countDigits - the number of digits to use, padding the given value with spaces from left if necessary

Returns:

the formatted count string, the right-aligned value padded with spaces from the left if necessary

writeCountLine

public static int writeCountLine(Line line,
                                 long count,
                                 int countDigits,
                                 LineProcessor output)

Writes the given line prefixed with the count using the format
' ' + <count> + ' ' + <line>
and using formatCount(long, int) to format <count>.

Parameters:

line - the line to write to the output

count - the count written before the line

countDigits - the number of digits to use for <count>, padding the given value with spaces from left if necessary

output - the output device to write to

Returns:

the length of the formatted count string as returned by #formatCount(long, int)