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84 lines
3.6 KiB
C
84 lines
3.6 KiB
C
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//
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// UTF8String.h
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//
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// Library: Foundation
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// Package: Text
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// Module: UTF8String
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//
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// Definition of the UTF8 string functions.
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//
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// Copyright (c) 2007, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// SPDX-License-Identifier: BSL-1.0
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//
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#ifndef Foundation_UTF8String_INCLUDED
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#define Foundation_UTF8String_INCLUDED
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#include "Poco/Foundation.h"
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namespace Poco {
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struct Foundation_API UTF8
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/// This class provides static methods that are UTF-8 capable variants
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/// of the same functions in Poco/String.h.
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///
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/// The various variants of icompare() provide case insensitive comparison
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/// for UTF-8 encoded strings.
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///
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/// toUpper(), toUpperInPlace(), toLower() and toLowerInPlace() provide
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/// Unicode-based character case transformation for UTF-8 encoded strings.
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///
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/// removeBOM() removes the UTF-8 Byte Order Mark sequence (0xEF, 0xBB, 0xBF)
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/// from the beginning of the given string, if it's there.
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{
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static int icompare(const std::string& str, std::string::size_type pos, std::string::size_type n, std::string::const_iterator it2, std::string::const_iterator end2);
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static int icompare(const std::string& str1, const std::string& str2);
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static int icompare(const std::string& str1, std::string::size_type n1, const std::string& str2, std::string::size_type n2);
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static int icompare(const std::string& str1, std::string::size_type n, const std::string& str2);
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static int icompare(const std::string& str1, std::string::size_type pos, std::string::size_type n, const std::string& str2);
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static int icompare(const std::string& str1, std::string::size_type pos1, std::string::size_type n1, const std::string& str2, std::string::size_type pos2, std::string::size_type n2);
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static int icompare(const std::string& str1, std::string::size_type pos1, std::string::size_type n, const std::string& str2, std::string::size_type pos2);
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static int icompare(const std::string& str, std::string::size_type pos, std::string::size_type n, const std::string::value_type* ptr);
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static int icompare(const std::string& str, std::string::size_type pos, const std::string::value_type* ptr);
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static int icompare(const std::string& str, const std::string::value_type* ptr);
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static std::string toUpper(const std::string& str);
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static std::string& toUpperInPlace(std::string& str);
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static std::string toLower(const std::string& str);
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static std::string& toLowerInPlace(std::string& str);
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static void removeBOM(std::string& str);
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/// Remove the UTF-8 Byte Order Mark sequence (0xEF, 0xBB, 0xBF)
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/// from the beginning of the string, if it's there.
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static std::string escape(const std::string& s, bool strictJSON = false);
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/// Escapes a string. Special characters like tab, backslash, ... are
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/// escaped. Unicode characters are escaped to \uxxxx.
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/// If strictJSON is true, \a and \v will be escaped to \\u0007 and \\u000B
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/// instead of \\a and \\v for strict JSON conformance.
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static std::string escape(const std::string::const_iterator& begin, const std::string::const_iterator& end, bool strictJSON = false);
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/// Escapes a string. Special characters like tab, backslash, ... are
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/// escaped. Unicode characters are escaped to \uxxxx.
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/// If strictJSON is true, \a and \v will be escaped to \\u0007 and \\u000B
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/// instead of \\a and \\v for strict JSON conformance.
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static std::string unescape(const std::string& s);
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/// Creates an UTF8 string from a string that contains escaped characters.
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static std::string unescape(const std::string::const_iterator& begin, const std::string::const_iterator& end);
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/// Creates an UTF8 string from a string that contains escaped characters.
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};
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} // namespace Poco
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#endif // Foundation_UTF8String_INCLUDED
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