annotate mupdf-source/thirdparty/zxing-cpp/core/src/CharacterSet.cpp @ 32:72c1b70d4f5c

Also apply -Werror=implicit-function-declaration
author Franz Glasner <fzglas.hg@dom66.de>
date Sun, 21 Sep 2025 15:10:12 +0200
parents b50eed0cc0ef
children
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1 /*
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2 * Copyright 2016 Nu-book Inc.
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3 * Copyright 2016 ZXing authors
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4 */
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5 // SPDX-License-Identifier: Apache-2.0
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7 #include "CharacterSet.h"
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9 #include "ZXAlgorithms.h"
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11 #include <algorithm>
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12 #include <cctype>
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13
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14 namespace ZXing {
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16 struct CharacterSetName
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17 {
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18 std::string_view name;
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19 CharacterSet cs;
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20 };
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21
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22 static CharacterSetName NAME_TO_CHARSET[] = {
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23 {"Cp437", CharacterSet::Cp437},
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24 {"ISO-8859-1", CharacterSet::ISO8859_1},
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25 {"ISO-8859-2", CharacterSet::ISO8859_2},
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26 {"ISO-8859-3", CharacterSet::ISO8859_3},
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27 {"ISO-8859-4", CharacterSet::ISO8859_4},
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28 {"ISO-8859-5", CharacterSet::ISO8859_5},
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29 {"ISO-8859-6", CharacterSet::ISO8859_6},
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30 {"ISO-8859-7", CharacterSet::ISO8859_7},
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31 {"ISO-8859-8", CharacterSet::ISO8859_8},
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32 {"ISO-8859-9", CharacterSet::ISO8859_9},
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33 {"ISO-8859-10", CharacterSet::ISO8859_10},
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34 {"ISO-8859-11", CharacterSet::ISO8859_11},
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35 {"ISO-8859-13", CharacterSet::ISO8859_13},
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36 {"ISO-8859-14", CharacterSet::ISO8859_14},
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37 {"ISO-8859-15", CharacterSet::ISO8859_15},
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38 {"ISO-8859-16", CharacterSet::ISO8859_16},
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39 {"SJIS", CharacterSet::Shift_JIS},
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40 {"Shift_JIS", CharacterSet::Shift_JIS},
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41 {"Cp1250", CharacterSet::Cp1250},
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42 {"windows-1250",CharacterSet::Cp1250},
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43 {"Cp1251", CharacterSet::Cp1251},
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44 {"windows-1251",CharacterSet::Cp1251},
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45 {"Cp1252", CharacterSet::Cp1252},
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46 {"windows-1252",CharacterSet::Cp1252},
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47 {"Cp1256", CharacterSet::Cp1256},
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48 {"windows-1256",CharacterSet::Cp1256},
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49 {"UTF-16BE", CharacterSet::UTF16BE},
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50 {"UTF-16LE", CharacterSet::UTF16LE},
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51 {"UTF-32BE", CharacterSet::UTF32BE},
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52 {"UTF-32LE", CharacterSet::UTF32LE},
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53 {"UnicodeBigUnmarked", CharacterSet::UTF16BE},
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54 {"UnicodeBig", CharacterSet::UTF16BE},
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55 {"UTF-8", CharacterSet::UTF8},
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56 {"ASCII", CharacterSet::ASCII},
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57 {"US-ASCII", CharacterSet::ASCII},
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58 {"Big5", CharacterSet::Big5},
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59 {"GB2312", CharacterSet::GB2312},
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60 {"GB18030", CharacterSet::GB18030},
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61 {"EUC-CN", CharacterSet::GB18030},
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62 {"GBK", CharacterSet::GB18030},
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63 {"EUC-KR", CharacterSet::EUC_KR},
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64 {"BINARY", CharacterSet::BINARY},
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65 };
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66
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67 static std::string NormalizeName(std::string_view sv)
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68 {
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69 std::string str(sv);
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70 std::transform(str.begin(), str.end(), str.begin(), [](char c) { return (char)std::tolower(c); });
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71 #ifdef __cpp_lib_erase_if
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72 std::erase_if(str, [](char c) { return Contains("_-[] ", c); });
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73 #else
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74 str.erase(std::remove_if(str.begin(), str.end(), [](char c) { return Contains("_-[] ", c); }), str.end());
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75 #endif
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76 return str;
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77 }
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78
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79 CharacterSet CharacterSetFromString(std::string_view name)
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80 {
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81 auto i = FindIf(NAME_TO_CHARSET, [str = NormalizeName(name)](auto& v) { return NormalizeName(v.name) == str; });
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82 return i == std::end(NAME_TO_CHARSET) ? CharacterSet::Unknown : i->cs;
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83 }
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84
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85 std::string ToString(CharacterSet cs)
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86 {
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87 auto i = FindIf(NAME_TO_CHARSET, [cs](auto& v) { return v.cs == cs; });
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88 return i == std::end(NAME_TO_CHARSET) ? "" : std::string(i->name);
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89 }
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90
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91 } // namespace ZXing