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| <li class="navelem"><a class="el" href="dir_51d145386ec5f52aa06ebf5e46944abc.html">iceberg</a></li><li class="navelem"><a class="el" href="dir_6a066966226cd78a6111c1015733de08.html">util</a></li> </ul> |
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| <a href="string__util_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">/*</span></div> |
| <div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment"> * Licensed to the Apache Software Foundation (ASF) under one</span></div> |
| <div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> * or more contributor license agreements. See the NOTICE file</span></div> |
| <div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"> * distributed with this work for additional information</span></div> |
| <div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment"> * regarding copyright ownership. The ASF licenses this file</span></div> |
| <div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment"> * to you under the Apache License, Version 2.0 (the</span></div> |
| <div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment"> * "License"); you may not use this file except in compliance</span></div> |
| <div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="comment"> * with the License. You may obtain a copy of the License at</span></div> |
| <div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="comment"> *</span></div> |
| <div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="comment"> * http://www.apache.org/licenses/LICENSE-2.0</span></div> |
| <div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="comment"> *</span></div> |
| <div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="comment"> * Unless required by applicable law or agreed to in writing,</span></div> |
| <div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="comment"> * software distributed under the License is distributed on an</span></div> |
| <div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="comment"> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</span></div> |
| <div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="comment"> * KIND, either express or implied. See the License for the</span></div> |
| <div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="comment"> * specific language governing permissions and limitations</span></div> |
| <div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="comment"> * under the License.</span></div> |
| <div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="comment"> */</span></div> |
| <div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span> </div> |
| <div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="preprocessor">#pragma once</span></div> |
| <div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span> </div> |
| <div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span> </div> |
| <div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="preprocessor">#include <algorithm></span></div> |
| <div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span><span class="preprocessor">#include <cerrno></span></div> |
| <div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="preprocessor">#include <charconv></span></div> |
| <div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="preprocessor">#include <optional></span></div> |
| <div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span><span class="preprocessor">#include <ranges></span></div> |
| <div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span><span class="preprocessor">#include <string></span></div> |
| <div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span><span class="preprocessor">#include <string_view></span></div> |
| <div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span><span class="preprocessor">#include <type_traits></span></div> |
| <div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span><span class="preprocessor">#include <typeinfo></span></div> |
| <div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span><span class="preprocessor">#include <utility></span></div> |
| <div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span><span class="preprocessor">#include <vector></span></div> |
| <div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> </div> |
| <div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span><span class="preprocessor">#include "<a class="code" href="iceberg__export_8h.html">iceberg/iceberg_export.h</a>"</span></div> |
| <div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span><span class="preprocessor">#include "<a class="code" href="result_8h.html">iceberg/result.h</a>"</span></div> |
| <div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> </div> |
| <div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceiceberg.html">iceberg</a> {</div> |
| <div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> </div> |
| <div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span><span class="keyword">template</span> <<span class="keyword">typename</span> T></div> |
| <div class="line"><a id="l00043" name="l00043"></a><span class="lineno"><a class="line" href="concepticeberg_1_1FromChars.html"> 43</a></span><span class="keyword">concept </span><a class="code hl_concept" href="concepticeberg_1_1FromChars.html">FromChars</a> = <span class="keyword">requires</span>(<span class="keyword">const</span> <span class="keywordtype">char</span>* p, T& v) { std::from_chars(p, p, v); };</div> |
| <div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> </div> |
| <div class="foldopen" id="foldopen00045" data-start="{" data-end="};"> |
| <div class="line"><a id="l00045" name="l00045"></a><span class="lineno"><a class="line" href="classiceberg_1_1StringUtils.html"> 45</a></span><span class="keyword">class </span>ICEBERG_EXPORT <a class="code hl_class" href="classiceberg_1_1StringUtils.html">StringUtils</a> {</div> |
| <div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> <span class="keyword">public</span>:</div> |
| <div class="line"><a id="l00062" name="l00062"></a><span class="lineno"><a class="line" href="classiceberg_1_1StringUtils.html#ac1e8069ce9636e1b11ece55292e19a13"> 62</a></span> <span class="keyword">static</span> std::string <a class="code hl_function" href="classiceberg_1_1StringUtils.html#ac1e8069ce9636e1b11ece55292e19a13">ToLower</a>(std::string_view str);</div> |
| <div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> </div> |
| <div class="foldopen" id="foldopen00072" data-start="{" data-end="}"> |
| <div class="line"><a id="l00072" name="l00072"></a><span class="lineno"><a class="line" href="classiceberg_1_1StringUtils.html#a7fe94da00b5c1f2ca831f6a3ee992171"> 72</a></span> <span class="keyword">static</span> std::string <a class="code hl_function" href="classiceberg_1_1StringUtils.html#a7fe94da00b5c1f2ca831f6a3ee992171">ToUpper</a>(std::string_view str) {</div> |
| <div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> <span class="keywordflow">return</span> str | std::ranges::views::transform(ToUpperAscii) |</div> |
| <div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> std::ranges::to<std::string>();</div> |
| <div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> }</div> |
| </div> |
| <div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> </div> |
| <div class="foldopen" id="foldopen00082" data-start="{" data-end="}"> |
| <div class="line"><a id="l00082" name="l00082"></a><span class="lineno"><a class="line" href="classiceberg_1_1StringUtils.html#adc967c3db1ca6cd51370b5434d41eec6"> 82</a></span> <span class="keyword">static</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="classiceberg_1_1StringUtils.html#adc967c3db1ca6cd51370b5434d41eec6">EqualsIgnoreCase</a>(std::string_view lhs, std::string_view rhs) {</div> |
| <div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> <span class="keyword">const</span> std::optional<bool> fast = AsciiEqualsIgnoreCase(lhs, rhs);</div> |
| <div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> <span class="keywordflow">return</span> fast.has_value() ? *fast : (ToLower(lhs) == ToLower(rhs));</div> |
| <div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> }</div> |
| </div> |
| <div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> </div> |
| <div class="foldopen" id="foldopen00093" data-start="{" data-end="}"> |
| <div class="line"><a id="l00093" name="l00093"></a><span class="lineno"><a class="line" href="classiceberg_1_1StringUtils.html#a16467481259b2ce4a426ef7bbd17a8f2"> 93</a></span> <span class="keyword">static</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="classiceberg_1_1StringUtils.html#a16467481259b2ce4a426ef7bbd17a8f2">StartsWithIgnoreCase</a>(std::string_view str, std::string_view prefix) {</div> |
| <div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> <span class="keywordflow">if</span> (prefix.size() <= str.size()) {</div> |
| <div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> <span class="keyword">const</span> std::optional<bool> fast =</div> |
| <div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> AsciiEqualsIgnoreCase(str.substr(0, prefix.size()), prefix);</div> |
| <div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> <span class="keywordflow">if</span> (fast.has_value()) {</div> |
| <div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <span class="keywordflow">return</span> *fast;</div> |
| <div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> }</div> |
| <div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> }</div> |
| <div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> <span class="keywordflow">return</span> ToLower(str).starts_with(ToLower(prefix));</div> |
| <div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> }</div> |
| </div> |
| <div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> </div> |
| <div class="foldopen" id="foldopen00105" data-start="{" data-end="}"> |
| <div class="line"><a id="l00105" name="l00105"></a><span class="lineno"><a class="line" href="classiceberg_1_1StringUtils.html#a4a8d82a80d211f1d8b0a33f32810df63"> 105</a></span> <span class="keyword">static</span> <span class="keywordtype">size_t</span> <a class="code hl_function" href="classiceberg_1_1StringUtils.html#a4a8d82a80d211f1d8b0a33f32810df63">CodePointCount</a>(std::string_view str) {</div> |
| <div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> <span class="keywordtype">size_t</span> count = 0;</div> |
| <div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> <span class="keywordflow">for</span> (<span class="keywordtype">char</span> i : str) {</div> |
| <div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> <span class="keywordflow">if</span> ((i & 0xC0) != 0x80) {</div> |
| <div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> count++;</div> |
| <div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> }</div> |
| <div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> }</div> |
| <div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> <span class="keywordflow">return</span> count;</div> |
| <div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> }</div> |
| </div> |
| <div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> </div> |
| <div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div> |
| <div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> <span class="keyword">requires</span> std::is_arithmetic_v<T> && <a class="code hl_concept" href="concepticeberg_1_1FromChars.html">FromChars<T></a> && (!std::same_as<T, bool>)</div> |
| <div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> <span class="keyword">static</span> <a class="code hl_typedef" href="namespaceiceberg.html#a9d5594e371beb516b0120e07e69d3af6">Result<T></a> ParseNumber(std::string_view str) {</div> |
| <div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> T value = 0;</div> |
| <div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> <span class="keyword">auto</span> [ptr, ec] = std::from_chars(str.data(), str.data() + str.size(), value);</div> |
| <div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> <span class="keywordflow">if</span> (ec == std::errc()) [[likely]] {</div> |
| <div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> <span class="keywordflow">if</span> (ptr != str.data() + str.size()) {</div> |
| <div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> <span class="keywordflow">return</span> InvalidArgument(<span class="stringliteral">"Failed to parse {} from string '{}': trailing characters"</span>,</div> |
| <div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> <span class="keyword">typeid</span>(T).name(), str);</div> |
| <div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> }</div> |
| <div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> <span class="keywordflow">return</span> value;</div> |
| <div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> }</div> |
| <div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> <span class="keywordflow">if</span> (ec == std::errc::invalid_argument) {</div> |
| <div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> <span class="keywordflow">return</span> InvalidArgument(<span class="stringliteral">"Failed to parse {} from string '{}': invalid argument"</span>,</div> |
| <div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> <span class="keyword">typeid</span>(T).name(), str);</div> |
| <div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> }</div> |
| <div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> <span class="keywordflow">if</span> (ec == std::errc::result_out_of_range) {</div> |
| <div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> <span class="keywordflow">return</span> InvalidArgument(<span class="stringliteral">"Failed to parse {} from string '{}': value out of range"</span>,</div> |
| <div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> <span class="keyword">typeid</span>(T).name(), str);</div> |
| <div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> }</div> |
| <div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> std::unreachable();</div> |
| <div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> }</div> |
| <div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> </div> |
| <div class="line"><a id="l00140" name="l00140"></a><span class="lineno"><a class="line" href="classiceberg_1_1StringUtils.html#acc44e09dcfe07b85b8ab96cdb3d1abe0"> 140</a></span> <span class="keyword">static</span> <a class="code hl_typedef" href="namespaceiceberg.html#a9d5594e371beb516b0120e07e69d3af6">Result<std::vector<uint8_t></a>> <a class="code hl_function" href="classiceberg_1_1StringUtils.html#acc44e09dcfe07b85b8ab96cdb3d1abe0">HexStringToBytes</a>(std::string_view hex);</div> |
| <div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> </div> |
| <div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div> |
| <div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> <span class="keyword">requires</span> std::is_floating_point_v<T> && (!<a class="code hl_concept" href="concepticeberg_1_1FromChars.html">FromChars<T></a>)</div> |
| <div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> <span class="keyword">static</span> <a class="code hl_typedef" href="namespaceiceberg.html#a9d5594e371beb516b0120e07e69d3af6">Result<T></a> ParseNumber(std::string_view str) {</div> |
| <div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> T value{};</div> |
| <div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> <span class="comment">// strto* require null-terminated input; string_view does not guarantee it.</span></div> |
| <div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> std::string owned(str);</div> |
| <div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* start = owned.c_str();</div> |
| <div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> <span class="keywordtype">char</span>* end = <span class="keyword">nullptr</span>;</div> |
| <div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> errno = 0;</div> |
| <div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> </div> |
| <div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> <span class="keywordflow">if</span> <span class="keyword">constexpr</span> (std::same_as<T, float>) {</div> |
| <div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> value = std::strtof(start, &end);</div> |
| <div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> <span class="keyword">constexpr</span> (std::same_as<T, double>) {</div> |
| <div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> value = std::strtod(start, &end);</div> |
| <div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> } <span class="keywordflow">else</span> {</div> |
| <div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> value = std::strtold(start, &end);</div> |
| <div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> }</div> |
| <div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> </div> |
| <div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> <span class="keywordflow">if</span> (end == start || end != start + <span class="keyword">static_cast<</span>std::ptrdiff_t<span class="keyword">></span>(owned.size())) {</div> |
| <div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> <span class="keywordflow">return</span> InvalidArgument(<span class="stringliteral">"Failed to parse {} from string '{}': invalid argument"</span>,</div> |
| <div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> <span class="keyword">typeid</span>(T).name(), str);</div> |
| <div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> }</div> |
| <div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> <span class="keywordflow">if</span> (errno == ERANGE) {</div> |
| <div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> <span class="keywordflow">return</span> InvalidArgument(<span class="stringliteral">"Failed to parse {} from string '{}': value out of range"</span>,</div> |
| <div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> <span class="keyword">typeid</span>(T).name(), str);</div> |
| <div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> }</div> |
| <div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> <span class="keywordflow">return</span> value;</div> |
| <div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> }</div> |
| <div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> </div> |
| <div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> <span class="keyword">private</span>:</div> |
| <div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> <span class="comment">// ASCII-only case mappings. These avoid std::toupper/std::tolower, which are</span></div> |
| <div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> <span class="comment">// locale-dependent and have undefined behavior for negative char values.</span></div> |
| <div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> <span class="keyword">static</span> <span class="keyword">constexpr</span> <span class="keywordtype">char</span> ToUpperAscii(<span class="keywordtype">char</span> c) <span class="keyword">noexcept</span> {</div> |
| <div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span> <span class="keywordflow">return</span> (c >= <span class="charliteral">'a'</span> && c <= <span class="charliteral">'z'</span>) ? <span class="keyword">static_cast<</span><span class="keywordtype">char</span><span class="keyword">></span>(c - <span class="charliteral">'a'</span> + <span class="charliteral">'A'</span>) : c;</div> |
| <div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> }</div> |
| <div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> <span class="keyword">static</span> <span class="keyword">constexpr</span> <span class="keywordtype">char</span> ToLowerAscii(<span class="keywordtype">char</span> c) <span class="keyword">noexcept</span> {</div> |
| <div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> <span class="keywordflow">return</span> (c >= <span class="charliteral">'A'</span> && c <= <span class="charliteral">'Z'</span>) ? <span class="keyword">static_cast<</span><span class="keywordtype">char</span><span class="keyword">></span>(c - <span class="charliteral">'A'</span> + <span class="charliteral">'a'</span>) : c;</div> |
| <div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> }</div> |
| <div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> </div> |
| <div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span> <span class="comment">// True if c is a 7-bit ASCII byte (< 0x80). The cast is required because char may be</span></div> |
| <div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span> <span class="comment">// signed, which would make bytes >= 0x80 compare as negative.</span></div> |
| <div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span> <span class="keyword">static</span> <span class="keyword">constexpr</span> <span class="keywordtype">bool</span> IsAsciiByte(<span class="keywordtype">char</span> c) <span class="keyword">noexcept</span> {</div> |
| <div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> <span class="keywordflow">return</span> (<span class="keyword">static_cast<</span><span class="keywordtype">unsigned</span> <span class="keywordtype">char</span><span class="keyword">></span>(c) & 0x80) == 0;</div> |
| <div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> }</div> |
| <div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> </div> |
| <div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> <span class="comment">// Case-insensitive equality decided in a single byte-wise pass, without allocating.</span></div> |
| <div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> <span class="comment">// Returns nullopt once a byte of either operand is non-ASCII, because folding can then</span></div> |
| <div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> <span class="comment">// be non-ASCII and length-changing (e.g. "İ" (U+0130) -> "i"), which only ToLower</span></div> |
| <div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span> <span class="comment">// knows.</span></div> |
| <div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span> <span class="keyword">static</span> std::optional<bool> AsciiEqualsIgnoreCase(std::string_view a,</div> |
| <div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span> std::string_view b) {</div> |
| <div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> <span class="keyword">const</span> <span class="keywordtype">size_t</span> n = std::min(a.size(), b.size());</div> |
| <div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < n; ++i) {</div> |
| <div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> <span class="keywordflow">if</span> (!IsAsciiByte(a[i]) || !IsAsciiByte(b[i])) {</div> |
| <div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> <span class="keywordflow">return</span> std::nullopt;</div> |
| <div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> }</div> |
| <div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> <span class="keywordflow">if</span> (ToLowerAscii(a[i]) != ToLowerAscii(b[i])) {</div> |
| <div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> |
| <div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span> }</div> |
| <div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span> }</div> |
| <div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span> <span class="keywordflow">return</span> a.size() == b.size();</div> |
| <div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span> }</div> |
| <div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span>};</div> |
| </div> |
| <div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span> </div> |
| <div class="foldopen" id="foldopen00210" data-start="{" data-end="};"> |
| <div class="line"><a id="l00210" name="l00210"></a><span class="lineno"><a class="line" href="structiceberg_1_1StringHash.html"> 210</a></span><span class="keyword">struct </span>ICEBERG_EXPORT <a class="code hl_struct" href="structiceberg_1_1StringHash.html">StringHash</a> {</div> |
| <div class="line"><a id="l00211" name="l00211"></a><span class="lineno"> 211</span> <span class="keyword">using </span>hash_type = std::hash<std::string_view>;</div> |
| <div class="line"><a id="l00212" name="l00212"></a><span class="lineno"> 212</span> <span class="keyword">using </span>is_transparent = void;</div> |
| <div class="line"><a id="l00213" name="l00213"></a><span class="lineno"> 213</span> </div> |
| <div class="line"><a id="l00214" name="l00214"></a><span class="lineno"> 214</span> std::size_t operator()(std::string_view str)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> hash_type{}(str); }</div> |
| <div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span> std::size_t operator()(<span class="keyword">const</span> <span class="keywordtype">char</span>* str)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> hash_type{}(str); }</div> |
| <div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span> std::size_t operator()(<span class="keyword">const</span> std::string& str)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> hash_type{}(str); }</div> |
| <div class="line"><a id="l00217" name="l00217"></a><span class="lineno"> 217</span>};</div> |
| </div> |
| <div class="line"><a id="l00218" name="l00218"></a><span class="lineno"> 218</span> </div> |
| <div class="foldopen" id="foldopen00220" data-start="{" data-end="};"> |
| <div class="line"><a id="l00220" name="l00220"></a><span class="lineno"><a class="line" href="structiceberg_1_1StringEqual.html"> 220</a></span><span class="keyword">struct </span>ICEBERG_EXPORT <a class="code hl_struct" href="structiceberg_1_1StringEqual.html">StringEqual</a> {</div> |
| <div class="line"><a id="l00221" name="l00221"></a><span class="lineno"> 221</span> <span class="keyword">using </span>is_transparent = void;</div> |
| <div class="line"><a id="l00222" name="l00222"></a><span class="lineno"> 222</span> </div> |
| <div class="line"><a id="l00223" name="l00223"></a><span class="lineno"> 223</span> <span class="keywordtype">bool</span> operator()(std::string_view lhs, std::string_view rhs)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> lhs == rhs; }</div> |
| <div class="line"><a id="l00224" name="l00224"></a><span class="lineno"> 224</span> <span class="keywordtype">bool</span> operator()(<span class="keyword">const</span> std::string& lhs, <span class="keyword">const</span> std::string& rhs)<span class="keyword"> const </span>{</div> |
| <div class="line"><a id="l00225" name="l00225"></a><span class="lineno"> 225</span> <span class="keywordflow">return</span> lhs == rhs;</div> |
| <div class="line"><a id="l00226" name="l00226"></a><span class="lineno"> 226</span> }</div> |
| <div class="line"><a id="l00227" name="l00227"></a><span class="lineno"> 227</span>};</div> |
| </div> |
| <div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span> </div> |
| <div class="foldopen" id="foldopen00230" data-start="{" data-end="};"> |
| <div class="line"><a id="l00230" name="l00230"></a><span class="lineno"><a class="line" href="structiceberg_1_1StringLess.html"> 230</a></span><span class="keyword">struct </span>ICEBERG_EXPORT <a class="code hl_struct" href="structiceberg_1_1StringLess.html">StringLess</a> {</div> |
| <div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span> <span class="keyword">using </span>is_transparent = void;</div> |
| <div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span> </div> |
| <div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span> <span class="keywordtype">bool</span> operator()(std::string_view lhs, std::string_view rhs)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> lhs < rhs; }</div> |
| <div class="line"><a id="l00234" name="l00234"></a><span class="lineno"> 234</span>};</div> |
| </div> |
| <div class="line"><a id="l00235" name="l00235"></a><span class="lineno"> 235</span> </div> |
| <div class="line"><a id="l00236" name="l00236"></a><span class="lineno"> 236</span>} <span class="comment">// namespace iceberg</span></div> |
| <div class="ttc" id="aclassiceberg_1_1StringUtils_html"><div class="ttname"><a href="classiceberg_1_1StringUtils.html">iceberg::StringUtils</a></div><div class="ttdef"><b>Definition</b> string_util.h:45</div></div> |
| <div class="ttc" id="aclassiceberg_1_1StringUtils_html_a16467481259b2ce4a426ef7bbd17a8f2"><div class="ttname"><a href="classiceberg_1_1StringUtils.html#a16467481259b2ce4a426ef7bbd17a8f2">iceberg::StringUtils::StartsWithIgnoreCase</a></div><div class="ttdeci">static bool StartsWithIgnoreCase(std::string_view str, std::string_view prefix)</div><div class="ttdoc">Case-insensitive prefix test using Unicode simple (1:1) case mapping.</div><div class="ttdef"><b>Definition</b> string_util.h:93</div></div> |
| <div class="ttc" id="aclassiceberg_1_1StringUtils_html_a4a8d82a80d211f1d8b0a33f32810df63"><div class="ttname"><a href="classiceberg_1_1StringUtils.html#a4a8d82a80d211f1d8b0a33f32810df63">iceberg::StringUtils::CodePointCount</a></div><div class="ttdeci">static size_t CodePointCount(std::string_view str)</div><div class="ttdoc">Count the number of code points in a UTF-8 string.</div><div class="ttdef"><b>Definition</b> string_util.h:105</div></div> |
| <div class="ttc" id="aclassiceberg_1_1StringUtils_html_a7fe94da00b5c1f2ca831f6a3ee992171"><div class="ttname"><a href="classiceberg_1_1StringUtils.html#a7fe94da00b5c1f2ca831f6a3ee992171">iceberg::StringUtils::ToUpper</a></div><div class="ttdeci">static std::string ToUpper(std::string_view str)</div><div class="ttdoc">Upper-case the ASCII letters (a-z) in a string; all other bytes, including multi-byte UTF-8 sequences...</div><div class="ttdef"><b>Definition</b> string_util.h:72</div></div> |
| <div class="ttc" id="aclassiceberg_1_1StringUtils_html_ac1e8069ce9636e1b11ece55292e19a13"><div class="ttname"><a href="classiceberg_1_1StringUtils.html#ac1e8069ce9636e1b11ece55292e19a13">iceberg::StringUtils::ToLower</a></div><div class="ttdeci">static std::string ToLower(std::string_view str)</div><div class="ttdoc">Lower-case a UTF-8 string using Unicode simple (1:1) case mapping.</div></div> |
| <div class="ttc" id="aclassiceberg_1_1StringUtils_html_acc44e09dcfe07b85b8ab96cdb3d1abe0"><div class="ttname"><a href="classiceberg_1_1StringUtils.html#acc44e09dcfe07b85b8ab96cdb3d1abe0">iceberg::StringUtils::HexStringToBytes</a></div><div class="ttdeci">static Result< std::vector< uint8_t > > HexStringToBytes(std::string_view hex)</div><div class="ttdoc">Decode a hex string (upper or lower case) into bytes. Returns an error if the string has odd length o...</div></div> |
| <div class="ttc" id="aclassiceberg_1_1StringUtils_html_adc967c3db1ca6cd51370b5434d41eec6"><div class="ttname"><a href="classiceberg_1_1StringUtils.html#adc967c3db1ca6cd51370b5434d41eec6">iceberg::StringUtils::EqualsIgnoreCase</a></div><div class="ttdeci">static bool EqualsIgnoreCase(std::string_view lhs, std::string_view rhs)</div><div class="ttdoc">Case-insensitive equality using Unicode simple (1:1) case mapping.</div><div class="ttdef"><b>Definition</b> string_util.h:82</div></div> |
| <div class="ttc" id="aconcepticeberg_1_1FromChars_html"><div class="ttname"><a href="concepticeberg_1_1FromChars.html">iceberg::FromChars</a></div><div class="ttdef"><b>Definition</b> string_util.h:43</div></div> |
| <div class="ttc" id="aiceberg__export_8h_html"><div class="ttname"><a href="iceberg__export_8h.html">iceberg_export.h</a></div><div class="ttdoc">Define symbol visibility macros for core Iceberg APIs.</div></div> |
| <div class="ttc" id="anamespaceiceberg_html"><div class="ttname"><a href="namespaceiceberg.html">iceberg</a></div><div class="ttdoc">Core Apache Iceberg C++ APIs.</div><div class="ttdef"><b>Definition</b> arrow_io_util.h:33</div></div> |
| <div class="ttc" id="anamespaceiceberg_html_a9d5594e371beb516b0120e07e69d3af6"><div class="ttname"><a href="namespaceiceberg.html#a9d5594e371beb516b0120e07e69d3af6">iceberg::Result</a></div><div class="ttdeci">std::expected< T, E > Result</div><div class="ttdoc">Result alias.</div><div class="ttdef"><b>Definition</b> result.h:88</div></div> |
| <div class="ttc" id="aresult_8h_html"><div class="ttname"><a href="result_8h.html">result.h</a></div><div class="ttdoc">Define Result, Status, and error helpers.</div></div> |
| <div class="ttc" id="astructiceberg_1_1StringEqual_html"><div class="ttname"><a href="structiceberg_1_1StringEqual.html">iceberg::StringEqual</a></div><div class="ttdoc">Transparent equality function that supports std::string_view as lookup key.</div><div class="ttdef"><b>Definition</b> string_util.h:220</div></div> |
| <div class="ttc" id="astructiceberg_1_1StringHash_html"><div class="ttname"><a href="structiceberg_1_1StringHash.html">iceberg::StringHash</a></div><div class="ttdoc">Transparent hash function that supports std::string_view as lookup key.</div><div class="ttdef"><b>Definition</b> string_util.h:210</div></div> |
| <div class="ttc" id="astructiceberg_1_1StringLess_html"><div class="ttname"><a href="structiceberg_1_1StringLess.html">iceberg::StringLess</a></div><div class="ttdoc">Transparent less function that supports std::string_view as lookup key.</div><div class="ttdef"><b>Definition</b> string_util.h:230</div></div> |
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