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<div class="title">StringUtils.hpp</div>  </div>
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<a href="_string_utils_8hpp.xhtml">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment">// Copyright © 2020 Arm Ltd. All rights reserved.</span></div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment">// SPDX-License-Identifier: MIT</span></div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;</div><div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="preprocessor">#pragma once</span></div><div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;</div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="preprocessor">#include &lt;iostream&gt;</span></div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="preprocessor">#include &lt;sstream&gt;</span></div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;</div><div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespacearmnn.xhtml">armnn</a></div><div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;{</div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;</div><div class="line"><a name="l00014"></a><span class="lineno"><a class="line" href="namespacearmnn_1_1string_utils.xhtml">   14</a></span>&#160;<span class="keyword">namespace </span>stringUtils</div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;{</div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="comment">/// Function to take a string and a list of delimiters and split the string into tokens based on those delimiters</span></div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="comment">/// This assumes that tokens are also to be split by newlines</span></div><div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="comment">/// Enabling tokenCompression merges adjacent delimiters together, preventing empty tokens</span></div><div class="line"><a name="l00020"></a><span class="lineno"><a class="line" href="namespacearmnn_1_1string_utils.xhtml#a25545ea8edf6a26c00077b01294beac5">   20</a></span>&#160;<span class="comment"></span><span class="keyword">inline</span> std::vector&lt;std::string&gt; <a class="code" href="namespacearmnn_1_1string_utils.xhtml#a25545ea8edf6a26c00077b01294beac5">StringTokenizer</a>(<span class="keyword">const</span> std::string&amp; str,</div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;                                                <span class="keyword">const</span> <span class="keywordtype">char</span>* delimiters,</div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;                                                <span class="keywordtype">bool</span> tokenCompression = <span class="keyword">true</span>)</div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;{</div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;    std::stringstream stringStream(str);</div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;    std::string line;</div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;    std::vector&lt;std::string&gt; tokenVector;</div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;    <span class="keywordflow">while</span> (std::getline(stringStream, line))</div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;    {</div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;        std::size_t prev = 0;</div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;        std::size_t pos;</div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;        <span class="keywordflow">while</span> ((pos = line.find_first_of(delimiters, prev)) != std::string::npos)</div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;        {</div><div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;            <span class="comment">// Ignore adjacent tokens</span></div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;            <span class="keywordflow">if</span> (pos &gt; prev)</div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;            {</div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;                tokenVector.push_back(line.substr(prev, pos - prev));</div><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;            }</div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;            <span class="comment">// Unless token compression is disabled</span></div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;            <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!tokenCompression)</div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;            {</div><div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;                tokenVector.push_back(line.substr(prev, pos - prev));</div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;            }</div><div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;            prev = pos + 1;</div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;        }</div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;        <span class="keywordflow">if</span> (prev &lt; line.length())</div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;        {</div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;            tokenVector.push_back(line.substr(prev, std::string::npos));</div><div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;        }</div><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;    }</div><div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;    <span class="keywordflow">return</span> tokenVector;</div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;}</div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;</div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;<span class="comment">// Set of 3 utility functions for trimming std::strings</span></div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;<span class="comment">// Default char set for common whitespace characters</span></div><div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;<span class="comment">///</span></div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;<span class="comment">/// Trim from the start of a string</span></div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;<span class="comment">///</span></div><div class="line"><a name="l00059"></a><span class="lineno"><a class="line" href="namespacearmnn_1_1string_utils.xhtml#a00efcb78606c1ff19905f8fd79798963">   59</a></span>&#160;<span class="comment"></span><span class="keyword">inline</span> std::string&amp; <a class="code" href="namespacearmnn_1_1string_utils.xhtml#a00efcb78606c1ff19905f8fd79798963">StringStartTrim</a>(std::string&amp; str, <span class="keyword">const</span> std::string&amp; chars = <span class="stringliteral">&quot;\t\n\v\f\r &quot;</span>)</div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;{</div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;    str.erase(0, str.find_first_not_of(chars));</div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;    <span class="keywordflow">return</span> str;</div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;}</div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;<span class="comment">///</span></div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;<span class="comment">/// Trim for the end of a string</span></div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;<span class="comment">///</span></div><div class="line"><a name="l00068"></a><span class="lineno"><a class="line" href="namespacearmnn_1_1string_utils.xhtml#a2df931fd1927227a4af1d06dc94e6de8">   68</a></span>&#160;<span class="comment"></span><span class="keyword">inline</span> std::string&amp; <a class="code" href="namespacearmnn_1_1string_utils.xhtml#a2df931fd1927227a4af1d06dc94e6de8">StringEndTrim</a>(std::string&amp; str, <span class="keyword">const</span> std::string&amp; chars = <span class="stringliteral">&quot;\t\n\v\f\r &quot;</span>)</div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;{</div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;    str.erase(str.find_last_not_of(chars) + 1);</div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;    <span class="keywordflow">return</span> str;</div><div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;}</div><div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;<span class="comment">///</span></div><div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;<span class="comment">/// Trim from both the start and the end of a string</span></div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;<span class="comment">///</span></div><div class="line"><a name="l00077"></a><span class="lineno"><a class="line" href="namespacearmnn_1_1string_utils.xhtml#acdeebefc9791d026eeb564f373479510">   77</a></span>&#160;<span class="comment"></span><span class="keyword">inline</span> std::string&amp; <a class="code" href="namespacearmnn_1_1string_utils.xhtml#acdeebefc9791d026eeb564f373479510">StringTrim</a>(std::string&amp; str, <span class="keyword">const</span> std::string&amp; chars = <span class="stringliteral">&quot;\t\n\v\f\r &quot;</span>)</div><div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;{</div><div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="namespacearmnn_1_1string_utils.xhtml#a00efcb78606c1ff19905f8fd79798963">StringStartTrim</a>(<a class="code" href="namespacearmnn_1_1string_utils.xhtml#a2df931fd1927227a4af1d06dc94e6de8">StringEndTrim</a>(str, chars), chars);</div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;}</div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;<span class="comment">///</span></div><div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;<span class="comment">/// Trim from both the start and the end of a string, returns a trimmed copy of the string</span></div><div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;<span class="comment">///</span></div><div class="line"><a name="l00085"></a><span class="lineno"><a class="line" href="namespacearmnn_1_1string_utils.xhtml#ac5da14c1462870eef77ca8ac4bb5afe5">   85</a></span>&#160;<span class="comment"></span><span class="keyword">inline</span> std::string <a class="code" href="namespacearmnn_1_1string_utils.xhtml#ac5da14c1462870eef77ca8ac4bb5afe5">StringTrimCopy</a>(<span class="keyword">const</span> std::string&amp; str, <span class="keyword">const</span> std::string&amp; chars = <span class="stringliteral">&quot;\t\n\v\f\r &quot;</span>)</div><div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;{</div><div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;    std::string strCopy = str;</div><div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="namespacearmnn_1_1string_utils.xhtml#a00efcb78606c1ff19905f8fd79798963">StringStartTrim</a>(<a class="code" href="namespacearmnn_1_1string_utils.xhtml#a2df931fd1927227a4af1d06dc94e6de8">StringEndTrim</a>(strCopy, chars), chars);</div><div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;}</div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;<span class="comment">/// Takes a vector of strings and concatenates them together into one long std::string with an optional</span></div><div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;<span class="comment">/// seperator between each.</span></div><div class="line"><a name="l00093"></a><span class="lineno"><a class="line" href="namespacearmnn_1_1string_utils.xhtml#ad5a6f63805c2ed95034fdf2f8dc91fd2">   93</a></span>&#160;<span class="comment"></span><span class="keyword">inline</span> std::string <a class="code" href="namespacearmnn_1_1string_utils.xhtml#ad5a6f63805c2ed95034fdf2f8dc91fd2">StringConcat</a>(<span class="keyword">const</span> std::vector&lt;std::string&gt;&amp; strings, std::string seperator = <span class="stringliteral">&quot;&quot;</span>)</div><div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;{</div><div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;    std::stringstream ss;</div><div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;    <span class="keywordflow">for</span> (<span class="keyword">auto</span> <span class="keywordtype">string</span> : strings)</div><div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;    {</div><div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;        ss &lt;&lt; <span class="keywordtype">string</span> &lt;&lt; seperator;</div><div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;    }</div><div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;    <span class="keywordflow">return</span> ss.str();</div><div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;}</div><div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;<span class="comment">///</span></div><div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;<span class="comment">/// Iterates over a given str and replaces all instance of substring oldStr with newStr</span></div><div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;<span class="comment">///</span></div><div class="line"><a name="l00106"></a><span class="lineno"><a class="line" href="namespacearmnn_1_1string_utils.xhtml#a4d846a2c84e89c81b5ccc20119a466dd">  106</a></span>&#160;<span class="comment"></span><span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="namespacearmnn_1_1string_utils.xhtml#a4d846a2c84e89c81b5ccc20119a466dd">StringReplaceAll</a>(std::string&amp; str,</div><div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;                             <span class="keyword">const</span> std::string&amp; oldStr,</div><div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;                             <span class="keyword">const</span> std::string&amp; newStr)</div><div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;{</div><div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;    std::string::size_type pos = 0u;</div><div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;    <span class="keywordflow">while</span> ((pos = str.find(oldStr, pos)) != std::string::npos)</div><div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;    {</div><div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;        str.replace(pos, oldStr.length(), newStr);</div><div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;        pos += newStr.length();</div><div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;    }</div><div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;}</div><div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;</div><div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;} <span class="comment">// namespace stringUtils</span></div><div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;</div><div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;} <span class="comment">// namespace armnn</span></div><div class="ttc" id="namespacearmnn_1_1string_utils_xhtml_a25545ea8edf6a26c00077b01294beac5"><div class="ttname"><a href="namespacearmnn_1_1string_utils.xhtml#a25545ea8edf6a26c00077b01294beac5">armnn::stringUtils::StringTokenizer</a></div><div class="ttdeci">std::vector&lt; std::string &gt; StringTokenizer(const std::string &amp;str, const char *delimiters, bool tokenCompression=true)</div><div class="ttdoc">Function to take a string and a list of delimiters and split the string into tokens based on those de...</div><div class="ttdef"><b>Definition:</b> <a href="_string_utils_8hpp_source.xhtml#l00020">StringUtils.hpp:20</a></div></div>
<div class="ttc" id="namespacearmnn_1_1string_utils_xhtml_a2df931fd1927227a4af1d06dc94e6de8"><div class="ttname"><a href="namespacearmnn_1_1string_utils.xhtml#a2df931fd1927227a4af1d06dc94e6de8">armnn::stringUtils::StringEndTrim</a></div><div class="ttdeci">std::string &amp; StringEndTrim(std::string &amp;str, const std::string &amp;chars=&quot;\\\&quot;)</div><div class="ttdoc">Trim for the end of a string. </div><div class="ttdef"><b>Definition:</b> <a href="_string_utils_8hpp_source.xhtml#l00068">StringUtils.hpp:68</a></div></div>
<div class="ttc" id="namespacearmnn_xhtml"><div class="ttname"><a href="namespacearmnn.xhtml">armnn</a></div><div class="ttdoc">Copyright (c) 2021 ARM Limited and Contributors. </div><div class="ttdef"><b>Definition:</b> <a href="01__00__software__tools_8dox_source.xhtml#l00006">01_00_software_tools.dox:6</a></div></div>
<div class="ttc" id="namespacearmnn_1_1string_utils_xhtml_ac5da14c1462870eef77ca8ac4bb5afe5"><div class="ttname"><a href="namespacearmnn_1_1string_utils.xhtml#ac5da14c1462870eef77ca8ac4bb5afe5">armnn::stringUtils::StringTrimCopy</a></div><div class="ttdeci">std::string StringTrimCopy(const std::string &amp;str, const std::string &amp;chars=&quot;\\\&quot;)</div><div class="ttdoc">Trim from both the start and the end of a string, returns a trimmed copy of the string. </div><div class="ttdef"><b>Definition:</b> <a href="_string_utils_8hpp_source.xhtml#l00085">StringUtils.hpp:85</a></div></div>
<div class="ttc" id="namespacearmnn_1_1string_utils_xhtml_a4d846a2c84e89c81b5ccc20119a466dd"><div class="ttname"><a href="namespacearmnn_1_1string_utils.xhtml#a4d846a2c84e89c81b5ccc20119a466dd">armnn::stringUtils::StringReplaceAll</a></div><div class="ttdeci">void StringReplaceAll(std::string &amp;str, const std::string &amp;oldStr, const std::string &amp;newStr)</div><div class="ttdoc">Iterates over a given str and replaces all instance of substring oldStr with newStr. </div><div class="ttdef"><b>Definition:</b> <a href="_string_utils_8hpp_source.xhtml#l00106">StringUtils.hpp:106</a></div></div>
<div class="ttc" id="namespacearmnn_1_1string_utils_xhtml_ad5a6f63805c2ed95034fdf2f8dc91fd2"><div class="ttname"><a href="namespacearmnn_1_1string_utils.xhtml#ad5a6f63805c2ed95034fdf2f8dc91fd2">armnn::stringUtils::StringConcat</a></div><div class="ttdeci">std::string StringConcat(const std::vector&lt; std::string &gt; &amp;strings, std::string seperator=&quot;&quot;)</div><div class="ttdoc">Takes a vector of strings and concatenates them together into one long std::string with an optional s...</div><div class="ttdef"><b>Definition:</b> <a href="_string_utils_8hpp_source.xhtml#l00093">StringUtils.hpp:93</a></div></div>
<div class="ttc" id="namespacearmnn_1_1string_utils_xhtml_a00efcb78606c1ff19905f8fd79798963"><div class="ttname"><a href="namespacearmnn_1_1string_utils.xhtml#a00efcb78606c1ff19905f8fd79798963">armnn::stringUtils::StringStartTrim</a></div><div class="ttdeci">std::string &amp; StringStartTrim(std::string &amp;str, const std::string &amp;chars=&quot;\\\&quot;)</div><div class="ttdoc">Trim from the start of a string. </div><div class="ttdef"><b>Definition:</b> <a href="_string_utils_8hpp_source.xhtml#l00059">StringUtils.hpp:59</a></div></div>
<div class="ttc" id="namespacearmnn_1_1string_utils_xhtml_acdeebefc9791d026eeb564f373479510"><div class="ttname"><a href="namespacearmnn_1_1string_utils.xhtml#acdeebefc9791d026eeb564f373479510">armnn::stringUtils::StringTrim</a></div><div class="ttdeci">std::string &amp; StringTrim(std::string &amp;str, const std::string &amp;chars=&quot;\\\&quot;)</div><div class="ttdoc">Trim from both the start and the end of a string. </div><div class="ttdef"><b>Definition:</b> <a href="_string_utils_8hpp_source.xhtml#l00077">StringUtils.hpp:77</a></div></div>
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