author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Thu, 24 Sep 2009 12:53:48 +0300 | |
changeset 11 | c8a366e56285 |
parent 0 | dd21522fd290 |
permissions | -rw-r--r-- |
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/* |
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* This file is part of the DOM implementation for KDE. |
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* |
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* (C) 1999 Lars Knoll (knoll@kde.org) |
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* Copyright (C) 2004, 2005, 2006 Apple Computer, Inc. |
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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 PlatformString_h |
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#define PlatformString_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 "StringImpl.h" |
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#if PLATFORM(CF) |
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typedef const struct __CFString * CFStringRef; |
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#endif |
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#if PLATFORM(QT) |
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class QString; |
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#endif |
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#if PLATFORM(SYMBIAN) |
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#include <string.h> |
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#endif |
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namespace WebCore { |
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class CString; |
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/** |
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* Currently, strings are explicitly shared (they behave like pointers), meaning |
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* that modifications to one instance will also modify all others. If you |
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* wish to get a String that is independent, use @ref copy(). In the future, |
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* we plan to change this to have immutable copy on write semantics. |
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*/ |
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class String { |
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public: |
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String() { } // gives null string, distinguishable from an empty string |
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String(const UChar*, unsigned length); |
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explicit String(const UChar*); // Specifically and explicitly for null terminated UTF-16 |
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String(const KJS::Identifier&); |
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String(const KJS::UString&); |
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String(const char*); |
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String(const char*, unsigned length); |
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String(StringImpl* i) : m_impl(i) { } |
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static String newUninitialized(size_t length, UChar*& characterBuffer); |
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static String adopt(Vector<UChar>&); |
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operator KJS::Identifier() const; |
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operator KJS::UString() const; |
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unsigned length() const; |
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const UChar* characters() const; |
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const UChar* charactersWithNullTermination(); |
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UChar operator[](unsigned i) const; // if i >= length(), returns 0 |
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bool contains(UChar c) const { return find(c) != -1; } |
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bool contains(const char* str, bool caseSensitive = true) const { return find(str, 0, caseSensitive) != -1; } |
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bool contains(const String& str, bool caseSensitive = true) const { return find(str, 0, caseSensitive) != -1; } |
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int find(UChar c, int start = 0) const |
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{ return m_impl ? m_impl->find(c, start) : -1; } |
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int find(const char* str, int start = 0, bool caseSensitive = true) const |
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{ return m_impl ? m_impl->find(str, start, caseSensitive) : -1; } |
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int find(const String& str, int start = 0, bool caseSensitive = true) const |
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{ return m_impl ? m_impl->find(str.impl(), start, caseSensitive) : -1; } |
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int reverseFind(UChar c, int start = -1) const |
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{ return m_impl ? m_impl->reverseFind(c, start) : -1; } |
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int reverseFind(const String& str, int start = -1, bool caseSensitive = true) const |
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{ return m_impl ? m_impl->reverseFind(str.impl(), start, caseSensitive) : -1; } |
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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 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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void append(const String&); |
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void append(char); |
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void append(UChar); |
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void insert(const String&, 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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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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// 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 stripWhiteSpace() const; |
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String simplifyWhiteSpace() 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 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); |
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static String format(const char *, ...) |
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#if __GNUC__ |
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__attribute__ ((format (printf, 1, 2))) |
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#endif |
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; |
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Vector<String> split(const String& separator, bool allowEmptyEntries = false) const; |
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Vector<String> split(UChar separator, bool allowEmptyEntries = false) const; |
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int toInt(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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double toDouble(bool* ok = 0) const; |
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float toFloat(bool* ok = 0) const; |
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Length* toLengthArray(int& len) const; |
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Length* toCoordsArray(int& len) const; |
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bool percentage(int &_percentage) const; |
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String copy() const; |
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bool isNull() const { return !m_impl; } |
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bool isEmpty() const; |
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StringImpl* impl() const { return m_impl.get(); } |
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#if PLATFORM(CF) |
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String(CFStringRef); |
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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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#if PLATFORM(QT) |
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String(const QString&); |
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String(const QStringRef&); |
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operator QString() const; |
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#endif |
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#if PLATFORM(SYMBIAN) |
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String(const TDesC&); |
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String(const TDesC8&); |
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operator TPtrC() const { return des(); } |
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TPtrC des() const { if (!m_impl) return KNullDesC(); return m_impl->des(); } |
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#endif |
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#ifndef NDEBUG |
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// For debugging only, leaks memory. |
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Vector<char> ascii() const; |
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#endif |
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CString latin1() const; |
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CString utf8() const; |
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static String fromUTF8(const char*, size_t); |
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static String fromUTF8(const char*); |
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// Determines the writing direction using the Unicode Bidi Algorithm rules P2 and P3. |
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WTF::Unicode::Direction defaultWritingDirection() const { return m_impl ? m_impl->defaultWritingDirection() : WTF::Unicode::LeftToRight; } |
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String(const DeprecatedString&); |
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DeprecatedString deprecatedString() const; |
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private: |
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RefPtr<StringImpl> m_impl; |
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}; |
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String operator+(const String&, const String&); |
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String operator+(const String&, const char*); |
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String operator+(const char*, const String&); |
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inline String& operator+=(String& a, const String& b) { a.append(b); return a; } |
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inline bool operator==(const String& a, const String& b) { return equal(a.impl(), b.impl()); } |
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inline bool operator==(const String& a, const char* b) { return equal(a.impl(), b); } |
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inline bool operator==(const char* a, const String& b) { return equal(a, b.impl()); } |
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inline bool operator!=(const String& a, const String& b) { return !equal(a.impl(), b.impl()); } |
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inline bool operator!=(const String& a, const char* b) { return !equal(a.impl(), b); } |
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inline bool operator!=(const char* a, const String& b) { return !equal(a, b.impl()); } |
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inline bool equalIgnoringCase(const String& a, const String& b) { return equalIgnoringCase(a.impl(), b.impl()); } |
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inline bool equalIgnoringCase(const String& a, const char* b) { return equalIgnoringCase(a.impl(), b); } |
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inline bool equalIgnoringCase(const char* a, const String& b) { return equalIgnoringCase(a, b.impl()); } |
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bool operator==(const String& a, const DeprecatedString& b); |
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inline bool operator==(const DeprecatedString& b, const String& a) { return a == b; } |
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inline bool operator!=(const String& a, const DeprecatedString& b) { return !(a == b); } |
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inline bool operator!=(const DeprecatedString& b, const String& a ) { return !(a == b); } |
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inline bool operator!(const String& str) { return str.isNull(); } |
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#ifdef __OBJC__ |
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// This is for situations in WebKit where the long standing behavior has been |
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// "nil if empty", so we try to maintain longstanding behavior for the sake of |
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// entrenched clients |
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inline NSString* nsStringNilIfEmpty(const String& str) { return str.isEmpty() ? nil : (NSString*)str; } |
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#endif |
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} |
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namespace WTF { |
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// StrHash is the default hash for String |
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template<typename T> struct DefaultHash; |
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template<typename T> struct StrHash; |
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template<> struct DefaultHash<WebCore::String> { |
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typedef StrHash<WebCore::String> Hash; |
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}; |
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} |
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#endif |