/*
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*/
package jme3tools.navigation;
import java.util.regex.Pattern;
/**
* A collection of String utilities.
*
* @author Benjamin Jakobus
* @version 1.0
*/
public class StringUtil {
/**
* Splits a newline (\n) delimited string into an array of strings
*
* @param str the string to split up
* @param delimiter the delimiter to use in splitting
* @returns an array of String objects equivalent to str
*/
public String[] splitDelimitedStr(String str, String delimiter) {
Pattern pttn = Pattern.compile(delimiter);
return pttn.split(str);
}
/**
* Right aligns a long number with spaces for printing
*
* @param num the number to be aligned
* @param totalLen the total length of the padded string
* @return the padded number
*/
public String padNum(long num, int totalLen) {
String numStr = Long.toString(num);
int len = totalLen - numStr.length();
String pads = "";
for (int i = 0; i < len; i++) {
pads += " ";
}
return pads + numStr;
}
/**
* Right aligns a long number with zeros for printing
*
* @param num the number to be aligned
* @param totalLen the total length of the padded string
* @return the padded number
*/
public String padNumZero(long num, int totalLen) {
String numStr = Long.toString(num);
int len = totalLen - numStr.length();
String pads = "";
for (int i = 0; i < len; i++) {
pads += "0";
}
return pads + numStr;
}
/**
* Right aligns an integer number with spaces for printing
*
* @param num the number to be aligned
* @param totalLen the total length of the padded string
* @return the padded number
*/
public String padNum(int num, int totalLen) {
String numStr = Integer.toString(num);
int len = totalLen - numStr.length();
String pads = "";
for (int i = 0; i < len; i++) {
pads += " ";
}
return pads + numStr;
}
/**
* Right aligns an integer number with zeros for printing
*
* @param num the number to be aligned
* @param totalLen the total length of the padded string
* @return the padded number
*/
public String padNumZero(int num, int totalLen) {
String numStr = Integer.toString(num);
int len = totalLen - numStr.length();
String pads = "";
for (int i = 0; i < len; i++) {
pads += "0";
}
return pads + numStr;
}
/**
* Right aligns a double number with spaces for printing
*
* @param num the number to be aligned
* @param wholeLen the total length of the padded string
* @return the padded number
*/
public String padNum(double num, int wholeLen, int decimalPlaces) {
String numStr = Double.toString(num);
int dpLoc = numStr.indexOf(".");
int len = wholeLen - dpLoc;
String pads = "";
for (int i = 0; i < len; i++) {
pads += " ";
}
numStr = pads + numStr;
dpLoc = numStr.indexOf(".");
if (dpLoc + 1 + decimalPlaces > numStr.substring(dpLoc).length()) {
return numStr;
}
return numStr.substring(0, dpLoc + 1 + decimalPlaces);
}
/**
* Right aligns a double number with zeros for printing
*
* @param num the number to be aligned
* @param wholeLen the total length of the padded string
* @return the padded number
*/
public String padNumZero(double num, int wholeLen, int decimalPlaces) {
String numStr = Double.toString(num);
int dpLoc = numStr.indexOf(".");
int len = wholeLen - dpLoc;
String pads = "";
for (int i = 0; i < len; i++) {
pads += "0";
}
numStr = pads + numStr;
dpLoc = numStr.indexOf(".");
if (dpLoc + 1 + decimalPlaces > numStr.substring(dpLoc).length()) {
return numStr;
}
return numStr.substring(0, dpLoc + 1 + decimalPlaces);
}
/**
* Right aligns a float number with spaces for printing
*
* @param num the number to be aligned
* @param wholeLen the total length of the padded string
* @return the padded number
*/
public String padNum(float num, int wholeLen, int decimalPlaces) {
String numStr = Float.toString(num);
int dpLoc = numStr.indexOf(".");
int len = wholeLen - dpLoc;
String pads = "";
for (int i = 0; i < len; i++) {
pads += " ";
}
numStr = pads + numStr;
dpLoc = numStr.indexOf(".");
if (dpLoc + 1 + decimalPlaces > numStr.substring(dpLoc).length()) {
return numStr;
}
return numStr.substring(0, dpLoc + 1 + decimalPlaces);
}
/**
* Right aligns a float number with zeros for printing
*
* @param num the number to be aligned
* @param wholeLen the total length of the padded string
* @return the padded number
*/
public String padNumZero(float num, int wholeLen, int decimalPlaces) {
String numStr = Float.toString(num);
int dpLoc = numStr.indexOf(".");
int len = wholeLen - dpLoc;
String pads = "";
if (numStr.charAt(0) == '-') {
len += 1;
for (int i = 0; i < len; i++) {
pads += "0";
}
pads = "-" + pads;
numStr = pads + numStr.substring(1);
} else {
for (int i = 0; i < len; i++) {
pads += "0";
}
numStr = pads + numStr;
}
dpLoc = numStr.indexOf(".");
int length = numStr.substring(dpLoc).length();
while (length < decimalPlaces) {
numStr += "0";
}
return numStr;
}
/**
* Right aligns a float number with zeros for printing
*
* @param num the number to be aligned
* @param wholeLen the total length of the padded string
* @return the padded number
*/
public String padStringRight(String input, int wholeLen) {
for (int i = input.length(); i < wholeLen; i++) {
input += " ";
}
return input;
}
/**
* @param arr a boolean array to be represented as a string
* @return the array as a string
*/
public String boolArrToStr(boolean[] arr) {
String output = "";
for (int i = 0; i < arr.length; i++) {
if (arr[i]) {
output += "1";
} else {
output += "0";
}
}
return output;
}
/**
* Formats a double nicely for printing: THIS DOES NOT ROUND!!!!
* @param num the double to be turned into a pretty string
* @return the pretty string
*/
public String prettyNum(double num) {
String numStr = (new Double(num)).toString();
while (numStr.length() < 4) {
numStr += "0";
}
numStr = numStr.substring(0, numStr.indexOf(".") + 3);
return numStr;
}
}