| /* |
| * Copyright (C) 2003, 2008, 2012 Apple Inc. All rights reserved. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| * |
| */ |
| |
| #ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_WTF_DTOA_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_PLATFORM_WTF_DTOA_H_ |
| |
| #include "third_party/blink/renderer/platform/wtf/ascii_ctype.h" |
| #include "third_party/blink/renderer/platform/wtf/dtoa/double-conversion.h" |
| #include "third_party/blink/renderer/platform/wtf/text/unicode.h" |
| #include "third_party/blink/renderer/platform/wtf/wtf_export.h" |
| |
| namespace WTF { |
| |
| // Size = 80 for sizeof(DtoaBuffer) + some sign bits, decimal point, 'e', |
| // exponent digits. |
| const unsigned kNumberToStringBufferLength = 96; |
| typedef char NumberToStringBuffer[kNumberToStringBufferLength]; |
| |
| WTF_EXPORT const char* NumberToString(double, NumberToStringBuffer); |
| WTF_EXPORT const char* NumberToFixedPrecisionString( |
| double, |
| unsigned significant_figures, |
| NumberToStringBuffer); |
| WTF_EXPORT const char* NumberToFixedWidthString(double, |
| unsigned decimal_places, |
| NumberToStringBuffer); |
| |
| WTF_EXPORT double ParseDouble(const LChar* string, |
| size_t length, |
| size_t& parsed_length); |
| WTF_EXPORT double ParseDouble(const UChar* string, |
| size_t length, |
| size_t& parsed_length); |
| |
| namespace Internal { |
| double ParseDoubleFromLongString(const UChar* string, |
| size_t length, |
| size_t& parsed_length); |
| } |
| |
| inline double ParseDouble(const LChar* string, |
| size_t length, |
| size_t& parsed_length) { |
| return double_conversion::StringToDoubleConverter::StringToDouble( |
| reinterpret_cast<const char*>(string), length, &parsed_length); |
| } |
| |
| inline double ParseDouble(const UChar* string, |
| size_t length, |
| size_t& parsed_length) { |
| const size_t kConversionBufferSize = 64; |
| if (length > kConversionBufferSize) |
| return Internal::ParseDoubleFromLongString(string, length, parsed_length); |
| LChar conversion_buffer[kConversionBufferSize]; |
| for (size_t i = 0; i < length; ++i) |
| conversion_buffer[i] = |
| IsASCII(string[i]) ? static_cast<LChar>(string[i]) : 0; |
| return ParseDouble(conversion_buffer, length, parsed_length); |
| } |
| |
| } // namespace WTF |
| |
| using WTF::NumberToStringBuffer; |
| using WTF::NumberToString; |
| using WTF::NumberToFixedPrecisionString; |
| using WTF::NumberToFixedWidthString; |
| using WTF::ParseDouble; |
| |
| #endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_WTF_DTOA_H_ |