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annotate src/core/strings.cc @ 116:254b1d2b7096

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author Paper <mrpapersonic@gmail.com>
date Tue, 07 Nov 2023 13:52:13 -0500
parents ab191e28e69d
children 39521c47c7a3
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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 <QByteArray>
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6 #include <QDebug>
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7 #include <QString>
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8 #include <QLocale>
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9 #include <algorithm>
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10 #include <cctype>
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11 #include <codecvt>
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12 #include <locale>
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13 #include <string>
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14 #include <vector>
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15 #include <unordered_map>
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16
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17 namespace Strings {
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18
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19 /* ew */
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20 std::string Implode(const std::vector<std::string>& vector, const std::string& delimiter) {
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21 if (vector.size() < 1)
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22 return "-";
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23 std::string out = "";
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24 for (unsigned long long i = 0; i < vector.size(); i++) {
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25 out.append(vector.at(i));
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26 if (i < vector.size() - 1)
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27 out.append(delimiter);
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28 }
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29 return out;
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30 }
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31
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32 /* This function is really only used for cleaning up the synopsis of
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33 horrible HTML debris from AniList :) */
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34 std::string ReplaceAll(std::string string, const std::string& find, const std::string& replace) {
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35 size_t pos = 0;
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36 while ((pos = string.find(find, pos)) != std::string::npos) {
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37 string.replace(pos, find.length(), replace);
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38 pos += replace.length();
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39 }
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40 return string;
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41 }
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42
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43 std::string SanitizeLineEndings(const std::string& string) {
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44 /* LOL */
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45 return
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46 ReplaceAll(
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47 ReplaceAll(
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48 ReplaceAll(
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49 ReplaceAll(
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50 ReplaceAll(string, "\r\n", "\n"),
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51 "</p>", "\n"),
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52 "<br>", "\n"),
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53 "<br />", "\n"),
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54 "\n\n\n", "\n\n");
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55 }
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56
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57 /* removes dumb HTML tags because anilist is aids and
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58 gives us HTML for synopses :/ */
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59 std::string RemoveHtmlTags(std::string string) {
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60 while (string.find("<") != std::string::npos) {
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61 auto startpos = string.find("<");
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62 auto endpos = string.find(">") + 1;
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64 if (endpos != std::string::npos)
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65 string.erase(startpos, endpos - startpos);
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66 }
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67 return string;
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68 }
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69
98
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70 /* e.g. "&lt;" for "<" */
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71 std::string ParseHtmlEntities(std::string string) {
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72 const std::unordered_map<std::string, std::string> map = {
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73 /* The only one of these I can understand using are the first
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74 three. why do the rest of these exist? */
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75 {"&lt;", "<"},
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76 {"&rt;", ">"},
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77 {"&nbsp;", "\xA0"},
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78 {"&amp;", "&"},
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79 {"&quot;", "\""},
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80 {"&apos;", "'"},
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81 {"&cent;", "¢"},
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82 {"&pound;", "£"},
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83 {"&euro;", "€"},
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84 {"&yen;", "¥"},
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85 {"&copy;", "©"},
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86 {"&reg;", "®"},
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87 {"&rsquo;", "’"} // Haibane Renmei, AniList
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88 };
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89
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90 for (const auto& item : map)
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91 string = ReplaceAll(string, item.first, item.second);
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92 return string;
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93 }
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94
99
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95 /* removes stupid HTML stuff */
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96 std::string TextifySynopsis(const std::string& string) {
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97 return ParseHtmlEntities(RemoveHtmlTags(SanitizeLineEndings(string)));
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98 }
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99
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100 /* let Qt handle the heavy lifting of locale shit
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101 I don't want to deal with */
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102 std::string ToUpper(const std::string& string) {
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103 /* todo: this "locale" will have to be moved to session.h
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104 it also defaults to en-US, which sucks very much for
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105 anyone who doesn't speak american english... */
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106 QLocale locale;
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107 return ToUtf8String(locale.toUpper(ToQString(string)));
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108 }
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109
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110 std::string ToLower(const std::string& string) {
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111 QLocale locale;
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112 return ToUtf8String(locale.toLower(ToQString(string)));
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113 }
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114
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115 std::wstring ToWstring(const std::string& string) {
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116 std::wstring_convert<std::codecvt_utf8<wchar_t>, wchar_t> converter;
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117 return converter.from_bytes(string);
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118 }
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119
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120 std::wstring ToWstring(const QString& string) {
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121 std::wstring arr(string.size(), L'\0');
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122 string.toWCharArray(&arr.front());
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123 return arr;
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124 }
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125
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126 std::string ToUtf8String(const std::wstring& wstring) {
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127 std::wstring_convert<std::codecvt_utf8<wchar_t>, wchar_t> converter;
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128 return converter.to_bytes(wstring);
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129 }
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130
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131 std::string ToUtf8String(const QString& string) {
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132 QByteArray ba = string.toUtf8();
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133 return std::string(ba.constData(), ba.size());
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134 }
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135
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136 std::string ToUtf8String(const QByteArray& ba) {
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137 return std::string(ba.constData(), ba.size());
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138 }
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139
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140 QString ToQString(const std::string& string) {
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141 return QString::fromUtf8(string.c_str(), string.length());
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142 }
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143
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144 QString ToQString(const std::wstring& wstring) {
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145 return QString::fromWCharArray(wstring.c_str(), wstring.length());
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146 }
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147
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148 int ToInt(const std::string& str, int def) {
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149 int tmp = 0;
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150 try {
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151 tmp = std::stoi(str);
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152 } catch (std::invalid_argument const& ex) {
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153 qDebug() << "Failed to parse int from std::string: no number found in " << ToQString(str) << " defaulting to " << def;
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154 tmp = def;
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155 }
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156 return tmp;
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157 }
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158
116
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159 bool ToBool(const std::string& s, const bool def) {
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160 if (s.length() < 4)
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161 return def;
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162 std::string l = Strings::ToLower(s);
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163 if (Strings::BeginningMatchesSubstring(l, "true"))
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164 return true;
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165 else if (Strings::BeginningMatchesSubstring(l, "false"))
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166 return false;
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167 return def;
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168 }
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169
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170 std::string ToUtf8String(const bool b) {
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171 return b ? "true" : "false";
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172 }
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173
114
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174 uint64_t HumanReadableSizeToBytes(const std::string& str) {
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175 const std::unordered_map<std::string, uint64_t> bytes_map = {
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176 {"KB", 1 << 10},
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177 {"MB", 1 << 20},
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178 {"GB", 1 << 30},
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179 {"TB", 1 << 40},
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180 {"PB", 1 << 50} /* surely we won't need more than this */
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181 };
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182
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183 for (const auto& suffix : bytes_map) {
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184 if (str.find(suffix.first) != std::string::npos) {
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185 try {
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186 uint64_t size = std::stod(str) * suffix.second;
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187 return size;
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188 } catch (std::invalid_argument const& ex) {
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189 continue;
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190 }
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191 }
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192 }
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193
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194 return ToInt(str, 0);
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195 }
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196
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197 std::string RemoveLeadingChars(std::string s, const char c) {
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198 s.erase(0, std::min(s.find_first_not_of(c), s.size() - 1));
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199 return s;
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200 }
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201
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202 std::string RemoveTrailingChars(std::string s, const char c) {
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203 s.erase(s.find_last_not_of(c) + 1, std::string::npos);
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204 return s;
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205 }
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206
102
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207 bool BeginningMatchesSubstring(const std::string& str, const std::string& sub) {
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208 for (unsigned long long i = 0; i < str.length() && i < sub.length(); i++)
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209 if (str[i] != sub[i])
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210 return false;
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211 return true;
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212 }
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213
9
5c0397762b53 INCOMPLETE: megacommit :)
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214 } // namespace Strings