1 /* 2 * Copyright (C) 2011 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #include "config.h" 32 #include "LocalizedNumber.h" 33 34 #include <limits> 35 #import <Foundation/NSNumberFormatter.h> 36 #include <wtf/RetainPtr.h> 37 #include <wtf/text/CString.h> 38 39 using namespace std; 40 41 namespace WebCore { 42 43 static RetainPtr<NSNumberFormatter> createFormatterForCurrentLocale() 44 { 45 RetainPtr<NSNumberFormatter> formatter(AdoptNS, [[NSNumberFormatter alloc] init]); 46 [formatter.get() setLocalizesFormat:YES]; 47 [formatter.get() setNumberStyle:NSNumberFormatterDecimalStyle]; 48 return formatter; 49 } 50 51 static NSNumberFormatter *numberFormatter() 52 { 53 ASSERT(isMainThread()); 54 static NSNumberFormatter *formatter = createFormatterForCurrentLocale().leakRef(); 55 return formatter; 56 } 57 58 double parseLocalizedNumber(const String& numberString) 59 { 60 if (numberString.isEmpty()) 61 return numeric_limits<double>::quiet_NaN(); 62 NSNumber *number = [numberFormatter() numberFromString:numberString]; 63 if (!number) 64 return numeric_limits<double>::quiet_NaN(); 65 return [number doubleValue]; 66 } 67 68 String formatLocalizedNumber(double inputNumber, unsigned fractionDigits) 69 { 70 RetainPtr<NSNumber> number(AdoptNS, [[NSNumber alloc] initWithDouble:inputNumber]); 71 RetainPtr<NSNumberFormatter> formatter = numberFormatter(); 72 [formatter.get() setMaximumFractionDigits:fractionDigits]; 73 return String([formatter.get() stringFromNumber:number.get()]); 74 } 75 76 } // namespace WebCore 77 78
