88 lines
2.7 KiB
C++
88 lines
2.7 KiB
C++
/*
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* Copyright 2016 Nu-book Inc.
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* Copyright 2016 ZXing authors
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*/
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// SPDX-License-Identifier: Apache-2.0
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#include "CharacterSet.h"
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#include "ZXAlgorithms.h"
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#include <algorithm>
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#include <cctype>
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namespace ZXing {
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struct CharacterSetName
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{
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std::string_view name;
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CharacterSet cs;
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};
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static CharacterSetName NAME_TO_CHARSET[] = {
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{"Cp437", CharacterSet::Cp437},
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{"ISO-8859-1", CharacterSet::ISO8859_1},
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{"ISO-8859-2", CharacterSet::ISO8859_2},
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{"ISO-8859-3", CharacterSet::ISO8859_3},
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{"ISO-8859-4", CharacterSet::ISO8859_4},
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{"ISO-8859-5", CharacterSet::ISO8859_5},
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{"ISO-8859-6", CharacterSet::ISO8859_6},
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{"ISO-8859-7", CharacterSet::ISO8859_7},
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{"ISO-8859-8", CharacterSet::ISO8859_8},
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{"ISO-8859-9", CharacterSet::ISO8859_9},
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{"ISO-8859-10", CharacterSet::ISO8859_10},
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{"ISO-8859-11", CharacterSet::ISO8859_11},
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{"ISO-8859-13", CharacterSet::ISO8859_13},
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{"ISO-8859-14", CharacterSet::ISO8859_14},
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{"ISO-8859-15", CharacterSet::ISO8859_15},
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{"ISO-8859-16", CharacterSet::ISO8859_16},
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{"SJIS", CharacterSet::Shift_JIS},
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{"Shift_JIS", CharacterSet::Shift_JIS},
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{"Cp1250", CharacterSet::Cp1250},
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{"windows-1250",CharacterSet::Cp1250},
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{"Cp1251", CharacterSet::Cp1251},
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{"windows-1251",CharacterSet::Cp1251},
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{"Cp1252", CharacterSet::Cp1252},
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{"windows-1252",CharacterSet::Cp1252},
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{"Cp1256", CharacterSet::Cp1256},
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{"windows-1256",CharacterSet::Cp1256},
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{"UTF-16BE", CharacterSet::UTF16BE},
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{"UTF-16LE", CharacterSet::UTF16LE},
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{"UTF-32BE", CharacterSet::UTF32BE},
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{"UTF-32LE", CharacterSet::UTF32LE},
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{"UnicodeBigUnmarked", CharacterSet::UTF16BE},
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{"UnicodeBig", CharacterSet::UTF16BE},
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{"UTF-8", CharacterSet::UTF8},
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{"ASCII", CharacterSet::ASCII},
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{"US-ASCII", CharacterSet::ASCII},
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{"Big5", CharacterSet::Big5},
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{"GB2312", CharacterSet::GB2312},
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{"GB18030", CharacterSet::GB18030},
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{"EUC-CN", CharacterSet::GB18030},
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{"GBK", CharacterSet::GB18030},
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{"EUC-KR", CharacterSet::EUC_KR},
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{"BINARY", CharacterSet::BINARY},
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};
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static std::string NormalizeName(std::string_view sv)
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{
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std::string str(sv);
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std::transform(str.begin(), str.end(), str.begin(), [](char c) { return (char)std::tolower(c); });
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str.erase(std::remove_if(str.begin(), str.end(), [](char c) { return Contains("_-[] ", c); }), str.end());
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return str;
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}
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CharacterSet CharacterSetFromString(std::string_view name)
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{
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auto i = FindIf(NAME_TO_CHARSET, [str = NormalizeName(name)](auto& v) { return NormalizeName(v.name) == str; });
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return i == std::end(NAME_TO_CHARSET) ? CharacterSet::Unknown : i->cs;
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}
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std::string ToString(CharacterSet cs)
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{
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auto i = FindIf(NAME_TO_CHARSET, [cs](auto& v) { return v.cs == cs; });
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return i == std::end(NAME_TO_CHARSET) ? "" : std::string(i->name);
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}
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} // namespace ZXing
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