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110 lines
3.2 KiB
Java
Executable File
110 lines
3.2 KiB
Java
Executable File
/*
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Copyright 2007,2008,2009,2010 Rustici Software, LLC
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Copyright 2010,2011 Kevin Glynn (kevin.glynn@twigletsoftware.com)
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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Author(s):
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Kevin Glynn (kevin.glynn@twigletsoftware.com)
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*/
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package CS2JNet.System;
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import java.text.DecimalFormat;
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import java.text.NumberFormat;
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import java.text.ParseException;
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import CS2JNet.JavaSupport.util.LocaleSupport;
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import CS2JNet.System.Globalization.*;
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import java.util.Locale;
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public class DoubleSupport {
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public static String ToString(double d, String format) {
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String formattedValue = "";
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if ((format.toLowerCase().indexOf("g") == 0 || format.toLowerCase().indexOf("n") == 0) && format.length() < 3) {
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if (format.length() == 2) {
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String lengthStr = format.substring(1);
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try {
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int len = Integer.parseInt(lengthStr);
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String decimalFormatString = "#.";
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for(int i=0; i<len; i++) {
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decimalFormatString += "0";
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}
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formattedValue = (new DecimalFormat(decimalFormatString)).format(d);
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} catch (NumberFormatException e) {
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throw new RuntimeException("DoubleSupport.ToString(double d, String format ) was called with an unsupported format of '" + format + "'");
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}
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} else {
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formattedValue = Double.toString(d);
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}
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} else {
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throw new RuntimeException("DoubleSupport.ToString(double d, String format ) was called with an unsupported format of '" + format + "'");
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}
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return formattedValue;
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}
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// Force doubles to print with at least one decimal place
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public static String ToString(double d, Locale loc) {
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NumberFormat nf = NumberFormat.getInstance(loc);
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nf.setGroupingUsed(false);
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if (loc == LocaleSupport.INVARIANT)
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{
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nf.setMinimumFractionDigits(1);
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nf.setMaximumFractionDigits(7);
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}
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return nf.format(d);
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}
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public static boolean isValidDouble(String s, int style, Locale loc) throws ParseException
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{
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try
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{
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parse(s, style, loc);
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return true;
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}
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catch (ParseException e)
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{
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return false;
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}
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}
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public static double parse(String s, int style, Locale loc) throws ParseException
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{
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String toParse = s;
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if ((style & NumberStyles.getAllowLeadingWhite()) > 0)
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toParse = StringSupport.TrimStart(toParse, null);
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if ((style & NumberStyles.getAllowTrailingWhite()) > 0)
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toParse = StringSupport.TrimEnd(toParse, null);
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if ((style & NumberStyles.getAllowLeadingSign()) == 0)
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if (toParse.charAt(0) == '+' || toParse.charAt(0) == '-')
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throw new ParseException("Signs not allowed: " + s, 0);
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return NumberFormat.getInstance(loc == null ? LocaleSupport.INVARIANT : loc).parse(toParse).doubleValue();
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}
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}
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