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ca1c075179
This updates DEPS to match the recent chromium roll and applies the following changes to sky to accomodate the skia roll: https://src.chromium.org/viewvc/blink?revision=184191&view=revision https://src.chromium.org/viewvc/blink?revision=184289&view=revision as well as adding #include <string> to WTFString.h so it compiles for translation units that include this without #including <string> themselves, which currently happens in a number of files in the android build. TBR=abarth@chromium.org Review URL: https://codereview.chromium.org/682573003
694 lines
28 KiB
C++
694 lines
28 KiB
C++
/*
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* (C) 1999 Lars Knoll (knoll@kde.org)
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* Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012, 2013 Apple Inc. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#ifndef WTFString_h
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#define WTFString_h
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// This file would be called String.h, but that conflicts with <string.h>
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// on systems without case-sensitive file systems.
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#include <string>
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#include "wtf/HashTableDeletedValueType.h"
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#include "wtf/WTFExport.h"
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#include "wtf/text/ASCIIFastPath.h"
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#include "wtf/text/StringImpl.h"
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#include "wtf/text/StringView.h"
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#ifdef __OBJC__
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#include <objc/objc.h>
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#endif
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namespace WTF {
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class CString;
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struct StringHash;
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// Declarations of string operations
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WTF_EXPORT int charactersToIntStrict(const LChar*, size_t, bool* ok = 0, int base = 10);
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WTF_EXPORT int charactersToIntStrict(const UChar*, size_t, bool* ok = 0, int base = 10);
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WTF_EXPORT unsigned charactersToUIntStrict(const LChar*, size_t, bool* ok = 0, int base = 10);
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WTF_EXPORT unsigned charactersToUIntStrict(const UChar*, size_t, bool* ok = 0, int base = 10);
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WTF_EXPORT int64_t charactersToInt64Strict(const LChar*, size_t, bool* ok = 0, int base = 10);
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WTF_EXPORT int64_t charactersToInt64Strict(const UChar*, size_t, bool* ok = 0, int base = 10);
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WTF_EXPORT uint64_t charactersToUInt64Strict(const LChar*, size_t, bool* ok = 0, int base = 10);
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WTF_EXPORT uint64_t charactersToUInt64Strict(const UChar*, size_t, bool* ok = 0, int base = 10);
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WTF_EXPORT intptr_t charactersToIntPtrStrict(const LChar*, size_t, bool* ok = 0, int base = 10);
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WTF_EXPORT intptr_t charactersToIntPtrStrict(const UChar*, size_t, bool* ok = 0, int base = 10);
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WTF_EXPORT int charactersToInt(const LChar*, size_t, bool* ok = 0); // ignores trailing garbage
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WTF_EXPORT int charactersToInt(const UChar*, size_t, bool* ok = 0); // ignores trailing garbage
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WTF_EXPORT unsigned charactersToUInt(const LChar*, size_t, bool* ok = 0); // ignores trailing garbage
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WTF_EXPORT unsigned charactersToUInt(const UChar*, size_t, bool* ok = 0); // ignores trailing garbage
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WTF_EXPORT int64_t charactersToInt64(const LChar*, size_t, bool* ok = 0); // ignores trailing garbage
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WTF_EXPORT int64_t charactersToInt64(const UChar*, size_t, bool* ok = 0); // ignores trailing garbage
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WTF_EXPORT uint64_t charactersToUInt64(const LChar*, size_t, bool* ok = 0); // ignores trailing garbage
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WTF_EXPORT uint64_t charactersToUInt64(const UChar*, size_t, bool* ok = 0); // ignores trailing garbage
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WTF_EXPORT intptr_t charactersToIntPtr(const LChar*, size_t, bool* ok = 0); // ignores trailing garbage
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WTF_EXPORT intptr_t charactersToIntPtr(const UChar*, size_t, bool* ok = 0); // ignores trailing garbage
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// FIXME: Like the strict functions above, these give false for "ok" when there is trailing garbage.
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// Like the non-strict functions above, these return the value when there is trailing garbage.
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// It would be better if these were more consistent with the above functions instead.
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WTF_EXPORT double charactersToDouble(const LChar*, size_t, bool* ok = 0);
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WTF_EXPORT double charactersToDouble(const UChar*, size_t, bool* ok = 0);
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WTF_EXPORT float charactersToFloat(const LChar*, size_t, bool* ok = 0);
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WTF_EXPORT float charactersToFloat(const UChar*, size_t, bool* ok = 0);
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WTF_EXPORT float charactersToFloat(const LChar*, size_t, size_t& parsedLength);
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WTF_EXPORT float charactersToFloat(const UChar*, size_t, size_t& parsedLength);
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enum TrailingZerosTruncatingPolicy {
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KeepTrailingZeros,
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TruncateTrailingZeros
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};
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enum UTF8ConversionMode {
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LenientUTF8Conversion,
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StrictUTF8Conversion,
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StrictUTF8ConversionReplacingUnpairedSurrogatesWithFFFD
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};
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template<bool isSpecialCharacter(UChar), typename CharacterType>
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bool isAllSpecialCharacters(const CharacterType*, size_t);
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// You can find documentation about this class in this doc:
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// https://docs.google.com/document/d/1kOCUlJdh2WJMJGDf-WoEQhmnjKLaOYRbiHz5TiGJl14/edit?usp=sharing
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class WTF_EXPORT String {
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public:
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// Construct a null string, distinguishable from an empty string.
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String() { }
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// Construct a string with UTF-16 data.
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String(const UChar* characters, unsigned length);
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// Construct a string by copying the contents of a vector.
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// This method will never create a null string. Vectors with size() == 0
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// will return the empty string.
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// NOTE: This is different from String(vector.data(), vector.size())
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// which will sometimes return a null string when vector.data() is null
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// which can only occur for vectors without inline capacity.
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// See: https://bugs.webkit.org/show_bug.cgi?id=109792
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template<size_t inlineCapacity>
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explicit String(const Vector<UChar, inlineCapacity>&);
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// Construct a string with UTF-16 data, from a null-terminated source.
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String(const UChar*);
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// Construct a string with latin1 data.
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String(const LChar* characters, unsigned length);
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String(const char* characters, unsigned length);
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// Construct a string with latin1 data, from a null-terminated source.
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String(const LChar* characters);
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String(const char* characters);
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// Construct a string referencing an existing StringImpl.
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String(StringImpl* impl) : m_impl(impl) { }
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String(PassRefPtr<StringImpl> impl) : m_impl(impl) { }
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void swap(String& o) { m_impl.swap(o.m_impl); }
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template<typename CharType>
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static String adopt(StringBuffer<CharType>& buffer)
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{
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if (!buffer.length())
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return StringImpl::empty();
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return String(buffer.release());
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}
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bool isNull() const { return !m_impl; }
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bool isEmpty() const { return !m_impl || !m_impl->length(); }
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StringImpl* impl() const { return m_impl.get(); }
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PassRefPtr<StringImpl> releaseImpl() { return m_impl.release(); }
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unsigned length() const
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{
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if (!m_impl)
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return 0;
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return m_impl->length();
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}
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const LChar* characters8() const
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{
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if (!m_impl)
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return 0;
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ASSERT(m_impl->is8Bit());
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return m_impl->characters8();
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}
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const UChar* characters16() const
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{
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if (!m_impl)
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return 0;
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ASSERT(!m_impl->is8Bit());
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return m_impl->characters16();
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}
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// Return characters8() or characters16() depending on CharacterType.
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template <typename CharacterType>
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inline const CharacterType* getCharacters() const;
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bool is8Bit() const { return m_impl->is8Bit(); }
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unsigned sizeInBytes() const
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{
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if (!m_impl)
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return 0;
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return m_impl->length() * (is8Bit() ? sizeof(LChar) : sizeof(UChar));
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}
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CString ascii() const;
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CString latin1() const;
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CString utf8(UTF8ConversionMode = LenientUTF8Conversion) const;
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// We should replace CString with std::string.
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std::string toUTF8() const;
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UChar operator[](unsigned index) const
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{
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if (!m_impl || index >= m_impl->length())
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return 0;
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return (*m_impl)[index];
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}
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static String number(int);
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static String number(unsigned);
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static String number(long);
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static String number(unsigned long);
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static String number(long long);
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static String number(unsigned long long);
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static String number(double, unsigned precision = 6, TrailingZerosTruncatingPolicy = TruncateTrailingZeros);
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// Number to String conversion following the ECMAScript definition.
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static String numberToStringECMAScript(double);
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static String numberToStringFixedWidth(double, unsigned decimalPlaces);
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// Find a single character or string, also with match function & latin1 forms.
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size_t find(UChar c, unsigned start = 0) const
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{ return m_impl ? m_impl->find(c, start) : kNotFound; }
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size_t find(const String& str) const
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{ return m_impl ? m_impl->find(str.impl()) : kNotFound; }
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size_t find(const String& str, unsigned start) const
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{ return m_impl ? m_impl->find(str.impl(), start) : kNotFound; }
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size_t find(CharacterMatchFunctionPtr matchFunction, unsigned start = 0) const
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{ return m_impl ? m_impl->find(matchFunction, start) : kNotFound; }
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size_t find(const LChar* str, unsigned start = 0) const
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{ return m_impl ? m_impl->find(str, start) : kNotFound; }
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size_t findNextLineStart(unsigned start = 0) const
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{ return m_impl ? m_impl->findNextLineStart(start) : kNotFound; }
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// Find the last instance of a single character or string.
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size_t reverseFind(UChar c, unsigned start = UINT_MAX) const
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{ return m_impl ? m_impl->reverseFind(c, start) : kNotFound; }
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size_t reverseFind(const String& str, unsigned start = UINT_MAX) const
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{ return m_impl ? m_impl->reverseFind(str.impl(), start) : kNotFound; }
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// Case insensitive string matching.
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size_t findIgnoringCase(const LChar* str, unsigned start = 0) const
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{ return m_impl ? m_impl->findIgnoringCase(str, start) : kNotFound; }
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size_t findIgnoringCase(const String& str, unsigned start = 0) const
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{ return m_impl ? m_impl->findIgnoringCase(str.impl(), start) : kNotFound; }
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size_t reverseFindIgnoringCase(const String& str, unsigned start = UINT_MAX) const
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{ return m_impl ? m_impl->reverseFindIgnoringCase(str.impl(), start) : kNotFound; }
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// Wrappers for find & reverseFind adding dynamic sensitivity check.
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size_t find(const LChar* str, unsigned start, bool caseSensitive) const
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{ return caseSensitive ? find(str, start) : findIgnoringCase(str, start); }
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size_t find(const String& str, unsigned start, bool caseSensitive) const
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{ return caseSensitive ? find(str, start) : findIgnoringCase(str, start); }
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size_t reverseFind(const String& str, unsigned start, bool caseSensitive) const
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{ return caseSensitive ? reverseFind(str, start) : reverseFindIgnoringCase(str, start); }
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Vector<UChar> charactersWithNullTermination() const;
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unsigned copyTo(UChar* buffer, unsigned pos, unsigned maxLength) const;
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template<size_t inlineCapacity>
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void appendTo(Vector<UChar, inlineCapacity>&, unsigned pos = 0, unsigned len = UINT_MAX) const;
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template<typename BufferType>
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void appendTo(BufferType&, unsigned pos = 0, unsigned len = UINT_MAX) const;
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template<size_t inlineCapacity>
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void prependTo(Vector<UChar, inlineCapacity>&, unsigned pos = 0, unsigned len = UINT_MAX) const;
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UChar32 characterStartingAt(unsigned) const;
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bool contains(UChar c) const { return find(c) != kNotFound; }
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bool contains(const LChar* str, bool caseSensitive = true) const { return find(str, 0, caseSensitive) != kNotFound; }
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bool contains(const String& str, bool caseSensitive = true) const { return find(str, 0, caseSensitive) != kNotFound; }
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bool startsWith(const String& s, bool caseSensitive = true) const
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{ return m_impl ? m_impl->startsWith(s.impl(), caseSensitive) : s.isEmpty(); }
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bool startsWith(UChar character) const
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{ return m_impl ? m_impl->startsWith(character) : false; }
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template<unsigned matchLength>
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bool startsWith(const char (&prefix)[matchLength], bool caseSensitive = true) const
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{ return m_impl ? m_impl->startsWith<matchLength>(prefix, caseSensitive) : !matchLength; }
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bool endsWith(const String& s, bool caseSensitive = true) const
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{ return m_impl ? m_impl->endsWith(s.impl(), caseSensitive) : s.isEmpty(); }
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bool endsWith(UChar character) const
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{ return m_impl ? m_impl->endsWith(character) : false; }
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template<unsigned matchLength>
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bool endsWith(const char (&prefix)[matchLength], bool caseSensitive = true) const
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{ return m_impl ? m_impl->endsWith<matchLength>(prefix, caseSensitive) : !matchLength; }
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void append(const String&);
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void append(LChar);
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void append(char c) { append(static_cast<LChar>(c)); }
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void append(UChar);
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void append(const LChar*, unsigned length);
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void append(const char* charactersToAppend, unsigned length) { append(reinterpret_cast<const LChar*>(charactersToAppend), length); }
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void append(const UChar*, unsigned length);
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void insert(const String&, unsigned pos);
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void insert(const LChar*, unsigned length, unsigned pos);
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void insert(const UChar*, unsigned length, unsigned pos);
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String& replace(UChar a, UChar b) { if (m_impl) m_impl = m_impl->replace(a, b); return *this; }
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String& replace(UChar a, const String& b) { if (m_impl) m_impl = m_impl->replace(a, b.impl()); return *this; }
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String& replace(const String& a, const String& b) { if (m_impl) m_impl = m_impl->replace(a.impl(), b.impl()); return *this; }
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String& replace(unsigned index, unsigned len, const String& b) { if (m_impl) m_impl = m_impl->replace(index, len, b.impl()); return *this; }
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template<unsigned charactersCount>
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ALWAYS_INLINE String& replaceWithLiteral(UChar a, const char (&characters)[charactersCount])
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{
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if (m_impl)
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m_impl = m_impl->replace(a, characters, charactersCount - 1);
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return *this;
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}
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void fill(UChar c) { if (m_impl) m_impl = m_impl->fill(c); }
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void ensure16Bit();
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void truncate(unsigned len);
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void remove(unsigned pos, int len = 1);
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String substring(unsigned pos, unsigned len = UINT_MAX) const;
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String left(unsigned len) const { return substring(0, len); }
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String right(unsigned len) const { return substring(length() - len, len); }
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StringView createView() const { return StringView(impl()); }
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StringView createView(unsigned offset, unsigned length) const { return StringView(impl(), offset, length); }
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// Returns a lowercase/uppercase version of the string
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String lower() const;
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String upper() const;
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String lower(const AtomicString& localeIdentifier) const;
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String upper(const AtomicString& localeIdentifier) const;
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String stripWhiteSpace() const;
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String stripWhiteSpace(IsWhiteSpaceFunctionPtr) const;
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String simplifyWhiteSpace(StripBehavior stripBehavior = StripExtraWhiteSpace) const;
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String simplifyWhiteSpace(IsWhiteSpaceFunctionPtr, StripBehavior stripBehavior = StripExtraWhiteSpace) const;
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String removeCharacters(CharacterMatchFunctionPtr) const;
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template<bool isSpecialCharacter(UChar)> bool isAllSpecialCharacters() const;
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// Return the string with case folded for case insensitive comparison.
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String foldCase() const;
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static String format(const char *, ...) WTF_ATTRIBUTE_PRINTF(1, 2);
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// Returns an uninitialized string. The characters needs to be written
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// into the buffer returned in data before the returned string is used.
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// Failure to do this will have unpredictable results.
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static String createUninitialized(unsigned length, UChar*& data) { return StringImpl::createUninitialized(length, data); }
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static String createUninitialized(unsigned length, LChar*& data) { return StringImpl::createUninitialized(length, data); }
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void split(const String& separator, bool allowEmptyEntries, Vector<String>& result) const;
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void split(const String& separator, Vector<String>& result) const
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{
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split(separator, false, result);
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}
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void split(UChar separator, bool allowEmptyEntries, Vector<String>& result) const;
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void split(UChar separator, Vector<String>& result) const
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{
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split(separator, false, result);
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}
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int toIntStrict(bool* ok = 0, int base = 10) const;
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unsigned toUIntStrict(bool* ok = 0, int base = 10) const;
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int64_t toInt64Strict(bool* ok = 0, int base = 10) const;
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uint64_t toUInt64Strict(bool* ok = 0, int base = 10) const;
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intptr_t toIntPtrStrict(bool* ok = 0, int base = 10) const;
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int toInt(bool* ok = 0) const;
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unsigned toUInt(bool* ok = 0) const;
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int64_t toInt64(bool* ok = 0) const;
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uint64_t toUInt64(bool* ok = 0) const;
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intptr_t toIntPtr(bool* ok = 0) const;
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// FIXME: Like the strict functions above, these give false for "ok" when there is trailing garbage.
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// Like the non-strict functions above, these return the value when there is trailing garbage.
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// It would be better if these were more consistent with the above functions instead.
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double toDouble(bool* ok = 0) const;
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float toFloat(bool* ok = 0) const;
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bool percentage(int& percentage) const;
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String isolatedCopy() const;
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bool isSafeToSendToAnotherThread() const;
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#if USE(CF)
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String(CFStringRef);
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RetainPtr<CFStringRef> createCFString() const;
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#endif
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#ifdef __OBJC__
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String(NSString*);
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// This conversion maps NULL to "", which loses the meaning of NULL, but we
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// need this mapping because AppKit crashes when passed nil NSStrings.
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operator NSString*() const { if (!m_impl) return @""; return *m_impl; }
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#endif
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static String make8BitFrom16BitSource(const UChar*, size_t);
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template<size_t inlineCapacity>
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static String make8BitFrom16BitSource(const Vector<UChar, inlineCapacity>& buffer)
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{
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return make8BitFrom16BitSource(buffer.data(), buffer.size());
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}
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static String make16BitFrom8BitSource(const LChar*, size_t);
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// String::fromUTF8 will return a null string if
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// the input data contains invalid UTF-8 sequences.
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static String fromUTF8(const LChar*, size_t);
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static String fromUTF8(const LChar*);
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static String fromUTF8(const char* s, size_t length) { return fromUTF8(reinterpret_cast<const LChar*>(s), length); };
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static String fromUTF8(const char* s) { return fromUTF8(reinterpret_cast<const LChar*>(s)); };
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static String fromUTF8(const CString&);
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static String fromUTF8(const std::string& s) { return fromUTF8(s.data(), s.size()); }
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// Tries to convert the passed in string to UTF-8, but will fall back to Latin-1 if the string is not valid UTF-8.
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static String fromUTF8WithLatin1Fallback(const LChar*, size_t);
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static String fromUTF8WithLatin1Fallback(const char* s, size_t length) { return fromUTF8WithLatin1Fallback(reinterpret_cast<const LChar*>(s), length); };
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bool containsOnlyASCII() const;
|
|
bool containsOnlyLatin1() const;
|
|
bool containsOnlyWhitespace() const { return !m_impl || m_impl->containsOnlyWhitespace(); }
|
|
|
|
// Hash table deleted values, which are only constructed and never copied or destroyed.
|
|
String(WTF::HashTableDeletedValueType) : m_impl(WTF::HashTableDeletedValue) { }
|
|
bool isHashTableDeletedValue() const { return m_impl.isHashTableDeletedValue(); }
|
|
|
|
#ifndef NDEBUG
|
|
void show() const;
|
|
#endif
|
|
|
|
// Workaround for a compiler bug. Use operator[] instead.
|
|
UChar characterAt(unsigned index) const
|
|
{
|
|
if (!m_impl || index >= m_impl->length())
|
|
return 0;
|
|
return (*m_impl)[index];
|
|
}
|
|
|
|
private:
|
|
typedef struct ImplicitConversionFromWTFStringToBoolDisallowed* (String::*UnspecifiedBoolType);
|
|
operator UnspecifiedBoolType() const;
|
|
|
|
template <typename CharacterType>
|
|
void removeInternal(const CharacterType*, unsigned, int);
|
|
|
|
template <typename CharacterType>
|
|
void appendInternal(CharacterType);
|
|
|
|
RefPtr<StringImpl> m_impl;
|
|
};
|
|
|
|
inline bool operator==(const String& a, const String& b) { return equal(a.impl(), b.impl()); }
|
|
inline bool operator==(const String& a, const LChar* b) { return equal(a.impl(), b); }
|
|
inline bool operator==(const String& a, const char* b) { return equal(a.impl(), reinterpret_cast<const LChar*>(b)); }
|
|
inline bool operator==(const LChar* a, const String& b) { return equal(a, b.impl()); }
|
|
inline bool operator==(const char* a, const String& b) { return equal(reinterpret_cast<const LChar*>(a), b.impl()); }
|
|
template<size_t inlineCapacity>
|
|
inline bool operator==(const Vector<char, inlineCapacity>& a, const String& b) { return equal(b.impl(), a.data(), a.size()); }
|
|
template<size_t inlineCapacity>
|
|
inline bool operator==(const String& a, const Vector<char, inlineCapacity>& b) { return b == a; }
|
|
|
|
|
|
inline bool operator!=(const String& a, const String& b) { return !equal(a.impl(), b.impl()); }
|
|
inline bool operator!=(const String& a, const LChar* b) { return !equal(a.impl(), b); }
|
|
inline bool operator!=(const String& a, const char* b) { return !equal(a.impl(), reinterpret_cast<const LChar*>(b)); }
|
|
inline bool operator!=(const LChar* a, const String& b) { return !equal(a, b.impl()); }
|
|
inline bool operator!=(const char* a, const String& b) { return !equal(reinterpret_cast<const LChar*>(a), b.impl()); }
|
|
template<size_t inlineCapacity>
|
|
inline bool operator!=(const Vector<char, inlineCapacity>& a, const String& b) { return !(a == b); }
|
|
template<size_t inlineCapacity>
|
|
inline bool operator!=(const String& a, const Vector<char, inlineCapacity>& b) { return b != a; }
|
|
|
|
inline bool equalIgnoringCase(const String& a, const String& b) { return equalIgnoringCase(a.impl(), b.impl()); }
|
|
inline bool equalIgnoringCase(const String& a, const LChar* b) { return equalIgnoringCase(a.impl(), b); }
|
|
inline bool equalIgnoringCase(const String& a, const char* b) { return equalIgnoringCase(a.impl(), reinterpret_cast<const LChar*>(b)); }
|
|
inline bool equalIgnoringCase(const LChar* a, const String& b) { return equalIgnoringCase(a, b.impl()); }
|
|
inline bool equalIgnoringCase(const char* a, const String& b) { return equalIgnoringCase(reinterpret_cast<const LChar*>(a), b.impl()); }
|
|
|
|
inline bool equalIgnoringNullity(const String& a, const String& b) { return equalIgnoringNullity(a.impl(), b.impl()); }
|
|
|
|
template<size_t inlineCapacity>
|
|
inline bool equalIgnoringNullity(const Vector<UChar, inlineCapacity>& a, const String& b) { return equalIgnoringNullity(a, b.impl()); }
|
|
|
|
inline bool operator!(const String& str) { return str.isNull(); }
|
|
|
|
inline void swap(String& a, String& b) { a.swap(b); }
|
|
|
|
// Definitions of string operations
|
|
|
|
template<size_t inlineCapacity>
|
|
String::String(const Vector<UChar, inlineCapacity>& vector)
|
|
: m_impl(vector.size() ? StringImpl::create(vector.data(), vector.size()) : StringImpl::empty())
|
|
{
|
|
}
|
|
|
|
template<>
|
|
inline const LChar* String::getCharacters<LChar>() const
|
|
{
|
|
ASSERT(is8Bit());
|
|
return characters8();
|
|
}
|
|
|
|
template<>
|
|
inline const UChar* String::getCharacters<UChar>() const
|
|
{
|
|
ASSERT(!is8Bit());
|
|
return characters16();
|
|
}
|
|
|
|
inline bool String::containsOnlyLatin1() const
|
|
{
|
|
if (isEmpty())
|
|
return true;
|
|
|
|
if (is8Bit())
|
|
return true;
|
|
|
|
const UChar* characters = characters16();
|
|
UChar ored = 0;
|
|
for (size_t i = 0; i < m_impl->length(); ++i)
|
|
ored |= characters[i];
|
|
return !(ored & 0xFF00);
|
|
}
|
|
|
|
|
|
#ifdef __OBJC__
|
|
// This is for situations in WebKit where the long standing behavior has been
|
|
// "nil if empty", so we try to maintain longstanding behavior for the sake of
|
|
// entrenched clients
|
|
inline NSString* nsStringNilIfEmpty(const String& str) { return str.isEmpty() ? nil : (NSString*)str; }
|
|
#endif
|
|
|
|
inline bool String::containsOnlyASCII() const
|
|
{
|
|
if (isEmpty())
|
|
return true;
|
|
|
|
if (is8Bit())
|
|
return charactersAreAllASCII(characters8(), m_impl->length());
|
|
|
|
return charactersAreAllASCII(characters16(), m_impl->length());
|
|
}
|
|
|
|
WTF_EXPORT int codePointCompare(const String&, const String&);
|
|
|
|
inline bool codePointCompareLessThan(const String& a, const String& b)
|
|
{
|
|
return codePointCompare(a.impl(), b.impl()) < 0;
|
|
}
|
|
|
|
template<size_t inlineCapacity>
|
|
inline void append(Vector<UChar, inlineCapacity>& vector, const String& string)
|
|
{
|
|
unsigned length = string.length();
|
|
if (!length)
|
|
return;
|
|
if (string.is8Bit()) {
|
|
const LChar* characters8 = string.characters8();
|
|
vector.reserveCapacity(vector.size() + length);
|
|
for (size_t i = 0; i < length; ++i)
|
|
vector.uncheckedAppend(characters8[i]);
|
|
} else {
|
|
vector.append(string.characters16(), length);
|
|
}
|
|
}
|
|
|
|
template<typename CharacterType>
|
|
inline void appendNumber(Vector<CharacterType>& vector, unsigned char number)
|
|
{
|
|
int numberLength = number > 99 ? 3 : (number > 9 ? 2 : 1);
|
|
size_t vectorSize = vector.size();
|
|
vector.grow(vectorSize + numberLength);
|
|
|
|
switch (numberLength) {
|
|
case 3:
|
|
vector[vectorSize + 2] = number % 10 + '0';
|
|
number /= 10;
|
|
|
|
case 2:
|
|
vector[vectorSize + 1] = number % 10 + '0';
|
|
number /= 10;
|
|
|
|
case 1:
|
|
vector[vectorSize] = number % 10 + '0';
|
|
}
|
|
}
|
|
|
|
template<bool isSpecialCharacter(UChar), typename CharacterType>
|
|
inline bool isAllSpecialCharacters(const CharacterType* characters, size_t length)
|
|
{
|
|
for (size_t i = 0; i < length; ++i) {
|
|
if (!isSpecialCharacter(characters[i]))
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
template<bool isSpecialCharacter(UChar)>
|
|
inline bool String::isAllSpecialCharacters() const
|
|
{
|
|
size_t len = length();
|
|
|
|
if (!len)
|
|
return true;
|
|
|
|
if (is8Bit())
|
|
return WTF::isAllSpecialCharacters<isSpecialCharacter, LChar>(characters8(), len);
|
|
return WTF::isAllSpecialCharacters<isSpecialCharacter, UChar>(characters16(), len);
|
|
}
|
|
|
|
template<size_t inlineCapacity>
|
|
inline void String::appendTo(Vector<UChar, inlineCapacity>& result, unsigned pos, unsigned len) const
|
|
{
|
|
unsigned numberOfCharactersToCopy = std::min(len, length() - pos);
|
|
if (!numberOfCharactersToCopy)
|
|
return;
|
|
result.reserveCapacity(result.size() + numberOfCharactersToCopy);
|
|
if (is8Bit()) {
|
|
const LChar* characters8 = m_impl->characters8();
|
|
for (size_t i = 0; i < numberOfCharactersToCopy; ++i)
|
|
result.uncheckedAppend(characters8[pos + i]);
|
|
} else {
|
|
const UChar* characters16 = m_impl->characters16();
|
|
result.append(characters16 + pos, numberOfCharactersToCopy);
|
|
}
|
|
}
|
|
|
|
template<typename BufferType>
|
|
inline void String::appendTo(BufferType& result, unsigned pos, unsigned len) const
|
|
{
|
|
unsigned numberOfCharactersToCopy = std::min(len, length() - pos);
|
|
if (!numberOfCharactersToCopy)
|
|
return;
|
|
if (is8Bit())
|
|
result.append(m_impl->characters8() + pos, numberOfCharactersToCopy);
|
|
else
|
|
result.append(m_impl->characters16() + pos, numberOfCharactersToCopy);
|
|
}
|
|
|
|
template<size_t inlineCapacity>
|
|
inline void String::prependTo(Vector<UChar, inlineCapacity>& result, unsigned pos, unsigned len) const
|
|
{
|
|
unsigned numberOfCharactersToCopy = std::min(len, length() - pos);
|
|
if (!numberOfCharactersToCopy)
|
|
return;
|
|
if (is8Bit()) {
|
|
size_t oldSize = result.size();
|
|
result.resize(oldSize + numberOfCharactersToCopy);
|
|
memmove(result.data() + numberOfCharactersToCopy, result.data(), oldSize * sizeof(UChar));
|
|
StringImpl::copyChars(result.data(), m_impl->characters8() + pos, numberOfCharactersToCopy);
|
|
} else {
|
|
result.prepend(m_impl->characters16() + pos, numberOfCharactersToCopy);
|
|
}
|
|
}
|
|
|
|
// StringHash is the default hash for String
|
|
template<typename T> struct DefaultHash;
|
|
template<> struct DefaultHash<String> {
|
|
typedef StringHash Hash;
|
|
};
|
|
|
|
// Shared global empty string.
|
|
WTF_EXPORT const String& emptyString();
|
|
WTF_EXPORT extern const String& xmlnsWithColon;
|
|
|
|
} // namespace WTF
|
|
|
|
WTF_ALLOW_MOVE_AND_INIT_WITH_MEM_FUNCTIONS(String);
|
|
|
|
using WTF::CString;
|
|
using WTF::KeepTrailingZeros;
|
|
using WTF::StrictUTF8Conversion;
|
|
using WTF::StrictUTF8ConversionReplacingUnpairedSurrogatesWithFFFD;
|
|
using WTF::String;
|
|
using WTF::emptyString;
|
|
using WTF::append;
|
|
using WTF::appendNumber;
|
|
using WTF::charactersAreAllASCII;
|
|
using WTF::charactersToIntStrict;
|
|
using WTF::charactersToUIntStrict;
|
|
using WTF::charactersToInt64Strict;
|
|
using WTF::charactersToUInt64Strict;
|
|
using WTF::charactersToIntPtrStrict;
|
|
using WTF::charactersToInt;
|
|
using WTF::charactersToUInt;
|
|
using WTF::charactersToInt64;
|
|
using WTF::charactersToUInt64;
|
|
using WTF::charactersToIntPtr;
|
|
using WTF::charactersToDouble;
|
|
using WTF::charactersToFloat;
|
|
using WTF::equal;
|
|
using WTF::equalIgnoringCase;
|
|
using WTF::find;
|
|
using WTF::isAllSpecialCharacters;
|
|
using WTF::isSpaceOrNewline;
|
|
using WTF::reverseFind;
|
|
|
|
#include "wtf/text/AtomicString.h"
|
|
#endif // WTFString_h
|