If necessary, adds zeros to the beginning of a value so that the total length matches the given precision

//
// (C) Copyright 2009 Irantha Suwandarathna (irantha@gmail.com)
// All rights reserved.
//

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using System;
using System.Text;
using System.Collections.Generic;

namespace EffiProz.Core.Lib
{

/** Provides a collection of convenience methods for processing and
* creating objects with String value components.
*
* @author fredt@users
* @author boucherb@users
* @version 1.7.2
* @since 1.7.0
*/
public class StringUtil
{
/**
* If necessary, adds zeros to the beginning of a value so that the total
* length matches the given precision, otherwise trims the right digits.
* Then if maxSize is smaller than precision, trims the right digits to
* maxSize. Negative values are treated as positive
*/
public static String toZeroPaddedString(long value, int precision,
int maxSize)
{

StringBuilder sb = new StringBuilder();

if (value < 0) { value = -value; } String s = value.ToString(); if (s.Length > precision)
{
s = s.Substring(precision);
}

for (int i = s.Length; i < precision; i++) { sb.Append('0'); } sb.Append(s); if (maxSize < precision) { sb.Length = maxSize; } return sb.ToString(); } } } [/csharp]

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