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annotate src/core/strings.cc @ 381:5beae59cf042

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anime_db: fix build fail under Qt 5
author Paper <paper@tflc.us>
date Thu, 06 Nov 2025 01:17:24 -0500
parents 47c9f8502269
children
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9
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1 /**
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2 * strings.cpp: Useful functions for manipulating strings
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3 **/
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4 #include "core/strings.h"
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5 #include "core/session.h" // locale
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6
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7 #include <QByteArray>
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8 #include <QCoreApplication>
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9 #include <QDebug>
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10 #include <QLocale>
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11 #include <QString>
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12 #include <QTextDocument>
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13
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14 #include <algorithm>
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15 #include <cctype>
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16 #include <codecvt>
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17 #include <iomanip>
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18 #include <iostream>
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19 #include <locale>
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20 #include <string>
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21 #include <unordered_map>
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22 #include <vector>
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23
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24 #include "utf8proc.h"
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25
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26 namespace Strings {
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27
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28 /* ew */
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29 std::string Implode(const std::vector<std::string> &vector, const std::string &delimiter)
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30 {
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31 if (vector.size() < 1)
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32 return "";
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33
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34 std::string out;
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35
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36 for (unsigned long long i = 0; i < vector.size(); i++) {
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37 out.append(vector.at(i));
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38 if (i < vector.size() - 1)
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39 out.append(delimiter);
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40 }
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41
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42 return out;
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43 }
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44
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45 std::vector<std::string> Split(const std::string &text, const std::string &delimiter)
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46 {
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47 if (text.length() < 1)
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48 return {};
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49
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50 std::vector<std::string> tokens;
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51
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52 std::size_t start = 0, end = 0;
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53 while ((end = text.find(delimiter, start)) != std::string::npos) {
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54 tokens.push_back(text.substr(start, end - start));
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55 start = end + delimiter.length();
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56 }
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57 tokens.push_back(text.substr(start));
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58
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59 return tokens;
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60 }
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61
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62 /* This function is really only used for cleaning up the synopsis of
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63 * horrible HTML debris from AniList :)
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64 */
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65 void ReplaceAll(std::string &string, std::string_view find, std::string_view replace)
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66 {
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67 size_t pos = 0;
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68 while ((pos = string.find(find, pos)) != std::string::npos) {
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69 string.replace(pos, find.length(), replace);
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70 pos += replace.length();
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71 }
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72 }
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73
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74 void ConvertRomanNumerals(std::string &string)
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75 {
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76 static const std::vector<std::pair<std::string_view, std::string_view>> vec = {
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77 {"2", "II" },
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78 {"3", "III" },
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79 {"4", "IV" },
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80 {"5", "V" },
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81 {"6", "VI" },
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82 {"7", "VII" },
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83 {"8", "VIII"},
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84 {"9", "IX" },
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85 {"11", "XI" },
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86 {"12", "XII" },
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87 {"13", "XIII"}
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88 };
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89
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90 for (const auto &item : vec)
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91 ReplaceAll(string, item.second, item.first);
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92 }
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93
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94 /* this also performs case folding, so our string is lowercase after this */
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95 void NormalizeUnicode(std::string &string)
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96 {
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97 static constexpr utf8proc_option_t options = static_cast<utf8proc_option_t>(
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98 UTF8PROC_COMPAT | UTF8PROC_COMPOSE | UTF8PROC_STABLE | UTF8PROC_IGNORE | UTF8PROC_STRIPCC | UTF8PROC_STRIPMARK |
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99 UTF8PROC_LUMP | UTF8PROC_CASEFOLD | UTF8PROC_NLF2LS);
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100
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101 /* ack */
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102 utf8proc_uint8_t *buf = nullptr;
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103
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104 const utf8proc_ssize_t size =
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105 utf8proc_map(reinterpret_cast<const utf8proc_uint8_t *>(string.data()), string.size(), &buf, options);
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106
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107 if (buf) {
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108 if (size)
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109 string.assign(reinterpret_cast<const char *>(buf), size);
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110
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111 std::free(buf);
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112 }
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113 }
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114
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115 void NormalizeAnimeTitle(std::string &string)
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116 {
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117 ConvertRomanNumerals(string);
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118 NormalizeUnicode(string);
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119 RemoveLeadingChars(string, ' ');
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120 RemoveTrailingChars(string, ' ');
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121 }
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122
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123 void TextifySynopsis(std::string &string)
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124 {
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125 /* Just let Qt deal with it. */
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126 QTextDocument text;
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127 text.setHtml(Strings::ToQString(string));
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128 string = Strings::ToUtf8String(text.toPlainText());
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129 }
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130
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131 /* let Qt handle the heavy lifting of locale shit
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132 * I don't want to deal with
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133 */
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134 std::string ToUpper(const std::string &string)
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135 {
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136 return ToUtf8String(session.config.locale.GetLocale().toUpper(ToQString(string)));
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137 }
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138
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139 std::string ToLower(const std::string &string)
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140 {
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141 return ToUtf8String(session.config.locale.GetLocale().toLower(ToQString(string)));
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142 }
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143
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144 std::wstring ToWstring(const std::string &string)
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145 {
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146 static std::wstring_convert<std::codecvt_utf8<wchar_t>> converter("", L"");
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147
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148 std::wstring wstr;
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149 try {
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150 wstr = converter.from_bytes(string);
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151 } catch (std::range_error const &ex) {
347
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diff changeset
152 /* XXX how? */
230
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diff changeset
153 std::cerr << "Failed to convert UTF-8 to wide string!" << std::endl;
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154 }
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diff changeset
155 return wstr;
62
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diff changeset
156 }
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157
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158 std::wstring ToWstring(const QString &string)
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159 {
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160 std::wstring arr(string.size(), L'\0');
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161 string.toWCharArray(&arr.front());
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162 return arr;
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163 }
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164
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165 std::string ToUtf8String(const std::wstring &wstring)
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166 {
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167 static std::wstring_convert<std::codecvt_utf8<wchar_t>> converter("", L"");
62
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168 return converter.to_bytes(wstring);
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169 }
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170
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171 std::string ToUtf8String(const std::u32string &u32string)
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172 {
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a0aa8c8c4307 dep/anitomy: port to use UCS-4 rather than wide strings
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173 static std::wstring_convert<std::codecvt_utf8_utf16<char32_t>, char32_t> converter;
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174 return converter.to_bytes(u32string);
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175 }
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176
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177 std::u32string ToUcs4String(const std::string &string)
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178 {
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a0aa8c8c4307 dep/anitomy: port to use UCS-4 rather than wide strings
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179 static std::wstring_convert<std::codecvt_utf8_utf16<char32_t>, char32_t> converter;
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180 return converter.from_bytes(string);
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181 }
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182
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183 std::string ToUtf8String(const QString &string)
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184 {
187
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185 const QByteArray ba = string.toUtf8();
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186 return std::string(ba.constData(), ba.size());
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187 }
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188
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189 std::string ToUtf8String(const QByteArray &ba)
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190 {
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191 return std::string(ba.constData(), ba.size());
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192 }
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193
369
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194 QString ToQString(const std::string &string)
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195 {
64
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196 return QString::fromUtf8(string.c_str(), string.length());
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197 }
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198
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199 QString ToQString(const std::wstring &wstring)
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200 {
64
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201 return QString::fromWCharArray(wstring.c_str(), wstring.length());
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202 }
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203
369
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204 std::string ToUtf8String(const bool b)
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205 {
211
7cf53145de11 strings: use templates for ToInt, std::to_string -> Strings::ToUtf8String
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206 return b ? "true" : "false"; // lol
101
c537996cf67b *: multitude of config changes
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207 }
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diff changeset
208
369
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209 bool ToBool(const std::string &str, bool def)
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210 {
211
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211 std::istringstream s(Strings::ToLower(str));
7cf53145de11 strings: use templates for ToInt, std::to_string -> Strings::ToUtf8String
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212 s >> std::boolalpha >> def;
116
254b1d2b7096 settings: add torrents page, make rss feed configurable
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diff changeset
213 return def;
254b1d2b7096 settings: add torrents page, make rss feed configurable
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214 }
254b1d2b7096 settings: add torrents page, make rss feed configurable
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215
365
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216 template<typename T>
369
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217 constexpr T ipow(T num, unsigned int pow)
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218 {
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219 return (pow >= sizeof(unsigned int) * 8) ? 0 : pow == 0 ? 1 : num * ipow(num, pow - 1);
365
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220 }
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221
211
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222 /* util funcs */
369
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223 uint64_t HumanReadableSizeToBytes(const std::string &str)
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224 {
187
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225 static const std::unordered_map<std::string, uint64_t> bytes_map = {
369
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226 {"KB", 1e3 },
47c9f8502269 *: clang-format all the things
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227 {"MB", 1e6 },
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228 {"GB", 1e9 },
47c9f8502269 *: clang-format all the things
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229 {"TB", 1e12 },
47c9f8502269 *: clang-format all the things
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230 {"PB", 1e15 },
47c9f8502269 *: clang-format all the things
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231 {"KiB", 1ull << 10},
47c9f8502269 *: clang-format all the things
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diff changeset
232 {"MiB", 1ull << 20},
47c9f8502269 *: clang-format all the things
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233 {"GiB", 1ull << 30},
273
f31305b9f60a *: various code safety changes
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diff changeset
234 {"TiB", 1ull << 40},
369
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235 {"PiB", 1ull << 50} /* surely we won't need more than this */
114
ab191e28e69d *: add initial torrent stuff
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diff changeset
236 };
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237
369
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238 for (const auto &suffix : bytes_map) {
114
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diff changeset
239 if (str.find(suffix.first) != std::string::npos) {
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diff changeset
240 try {
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241 uint64_t size = std::stod(str) * suffix.second;
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diff changeset
242 return size;
369
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243 } catch (std::invalid_argument const &ex) {
114
ab191e28e69d *: add initial torrent stuff
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diff changeset
244 continue;
ab191e28e69d *: add initial torrent stuff
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parents: 102
diff changeset
245 }
ab191e28e69d *: add initial torrent stuff
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parents: 102
diff changeset
246 }
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parents: 102
diff changeset
247 }
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diff changeset
248
ab191e28e69d *: add initial torrent stuff
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diff changeset
249 return ToInt(str, 0);
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parents: 102
diff changeset
250 }
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diff changeset
251
369
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252 std::string BytesToHumanReadableSize(uint64_t bytes, int precision)
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diff changeset
253 {
273
f31305b9f60a *: various code safety changes
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parents: 264
diff changeset
254 #if QT_VERSION >= QT_VERSION_CHECK(5, 10, 0)
f31305b9f60a *: various code safety changes
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parents: 264
diff changeset
255 /* QLocale in Qt >= 5.10.0 has a function for this */
274
f6a756c19bfb anime_list.cc: use mutexes so we don't sex the stack
Paper <paper@paper.us.eu.org>
parents: 273
diff changeset
256 return Strings::ToUtf8String(session.config.locale.GetLocale().formattedDataSize(bytes, precision));
273
f31305b9f60a *: various code safety changes
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parents: 264
diff changeset
257 #else
f31305b9f60a *: various code safety changes
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diff changeset
258 static const std::unordered_map<uint64_t, std::string> map = {
369
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259 {1ull << 10, "KiB"},
47c9f8502269 *: clang-format all the things
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diff changeset
260 {1ull << 20, "MiB"},
47c9f8502269 *: clang-format all the things
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diff changeset
261 {1ull << 30, "GiB"},
47c9f8502269 *: clang-format all the things
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diff changeset
262 {1ull << 40, "TiB"},
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diff changeset
263 {1ull << 50, "PiB"}
47c9f8502269 *: clang-format all the things
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264 };
273
f31305b9f60a *: various code safety changes
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diff changeset
265
369
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diff changeset
266 for (const auto &suffix : map) {
273
f31305b9f60a *: various code safety changes
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parents: 264
diff changeset
267 if (bytes / suffix.first < 1)
f31305b9f60a *: various code safety changes
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diff changeset
268 continue;
f31305b9f60a *: various code safety changes
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diff changeset
269
f31305b9f60a *: various code safety changes
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diff changeset
270 std::stringstream ss;
369
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271 ss << std::setprecision(precision) << (static_cast<double>(bytes) / suffix.first) << " " << suffix.second;
273
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diff changeset
272 return ss.str();
f31305b9f60a *: various code safety changes
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parents: 264
diff changeset
273 }
f31305b9f60a *: various code safety changes
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diff changeset
274
f31305b9f60a *: various code safety changes
Paper <paper@paper.us.eu.org>
parents: 264
diff changeset
275 /* better luck next time */
f31305b9f60a *: various code safety changes
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diff changeset
276 return "0 bytes";
f31305b9f60a *: various code safety changes
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diff changeset
277 #endif
f31305b9f60a *: various code safety changes
Paper <paper@paper.us.eu.org>
parents: 264
diff changeset
278 }
f31305b9f60a *: various code safety changes
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diff changeset
279
369
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280 void RemoveLeadingChars(std::string &s, const char c)
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diff changeset
281 {
118
39521c47c7a3 *: another huge megacommit, SORRY
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parents: 116
diff changeset
282 s.erase(0, std::min(s.find_first_not_of(c), s.size() - 1));
114
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diff changeset
283 }
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diff changeset
284
369
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285 void RemoveTrailingChars(std::string &s, const char c)
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diff changeset
286 {
114
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parents: 102
diff changeset
287 s.erase(s.find_last_not_of(c) + 1, std::string::npos);
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parents: 102
diff changeset
288 }
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diff changeset
289
369
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diff changeset
290 bool BeginningMatchesSubstring(const std::string &str, const std::string &sub)
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diff changeset
291 {
102
b315f3759c56 *: big patch
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parents: 101
diff changeset
292 for (unsigned long long i = 0; i < str.length() && i < sub.length(); i++)
b315f3759c56 *: big patch
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parents: 101
diff changeset
293 if (str[i] != sub[i])
b315f3759c56 *: big patch
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parents: 101
diff changeset
294 return false;
187
9613d72b097e *: multiple performance improvements
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diff changeset
295
102
b315f3759c56 *: big patch
Paper <mrpapersonic@gmail.com>
parents: 101
diff changeset
296 return true;
b315f3759c56 *: big patch
Paper <mrpapersonic@gmail.com>
parents: 101
diff changeset
297 }
b315f3759c56 *: big patch
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parents: 101
diff changeset
298
369
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diff changeset
299 std::string Translate(const char *str)
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diff changeset
300 {
322
c32467cd06bb core/strings: add Strings::Translate function as tr() -> ToUtf8String
Paper <paper@paper.us.eu.org>
parents: 320
diff changeset
301 return Strings::ToUtf8String(QCoreApplication::tr(str));
c32467cd06bb core/strings: add Strings::Translate function as tr() -> ToUtf8String
Paper <paper@paper.us.eu.org>
parents: 320
diff changeset
302 }
c32467cd06bb core/strings: add Strings::Translate function as tr() -> ToUtf8String
Paper <paper@paper.us.eu.org>
parents: 320
diff changeset
303
9
5c0397762b53 INCOMPLETE: megacommit :)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
304 } // namespace Strings