<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Welcome to stringtools’s documentation! — stringtools documentation</title> <link rel="stylesheet" href="_static/alabaster.css" type="text/css" /> <link rel="stylesheet" href="_static/pygments.css" type="text/css" /> <script type="text/javascript"> var DOCUMENTATION_OPTIONS = { URL_ROOT: './', VERSION: '', COLLAPSE_INDEX: false, FILE_SUFFIX: '.html', HAS_SOURCE: true, SOURCELINK_SUFFIX: '.txt' }; </script> <script type="text/javascript" src="_static/jquery.js"></script> <script type="text/javascript" src="_static/underscore.js"></script> <script type="text/javascript" src="_static/doctools.js"></script> <link rel="index" title="Index" href="genindex.html" /> <link rel="search" title="Search" href="search.html" /> <link rel="stylesheet" href="_static/custom.css" type="text/css" /> <meta name="viewport" content="width=device-width, initial-scale=0.9, maximum-scale=0.9" /> </head> <body> <div class="document"> <div class="documentwrapper"> <div class="bodywrapper"> <div class="body" role="main"> <div class="section" id="module-stringtools"> <span id="welcome-to-stringtools-s-documentation"></span><h1>Welcome to stringtools’s documentation!<a class="headerlink" href="#module-stringtools" title="Permalink to this headline">¶</a></h1> <div class="section" id="stringtools-stringtools"> <h2>stringtools (Stringtools)<a class="headerlink" href="#stringtools-stringtools" title="Permalink to this headline">¶</a></h2> <p><strong>Author:</strong></p> <ul class="simple"> <li>Dirk Alders <<a class="reference external" href="mailto:sudo-dirk%40mount-mockery.de">sudo-dirk<span>@</span>mount-mockery<span>.</span>de</a>></li> </ul> <p><strong>Description:</strong></p> <blockquote> <div>This Module supports functionality around string operations.</div></blockquote> <p><strong>Submodules:</strong></p> <ul class="simple"> <li><a class="reference internal" href="#module-stringtools.csp" title="stringtools.csp"><code class="xref py py-mod docutils literal"><span class="pre">stringtools.csp</span></code></a></li> <li><a class="reference internal" href="#module-stringtools.stp" title="stringtools.stp"><code class="xref py py-mod docutils literal"><span class="pre">stringtools.stp</span></code></a></li> <li><a class="reference internal" href="#stringtools.gzip_compress" title="stringtools.gzip_compress"><code class="xref py py-func docutils literal"><span class="pre">gzip_compress()</span></code></a></li> <li><a class="reference internal" href="#stringtools.gzip_extract" title="stringtools.gzip_extract"><code class="xref py py-func docutils literal"><span class="pre">gzip_extract()</span></code></a></li> <li><a class="reference internal" href="#stringtools.hexlify" title="stringtools.hexlify"><code class="xref py py-func docutils literal"><span class="pre">hexlify()</span></code></a></li> </ul> <p><strong>Unittest:</strong></p> <blockquote> <div>See also the <a class="reference download internal" href="_downloads/unittest.pdf" download=""><code class="xref download docutils literal"><span class="pre">unittest</span></code></a> documentation.</div></blockquote> <p><strong>Module Documentation:</strong></p> <dl class="function"> <dt id="stringtools.gzip_compress"> <code class="descclassname">stringtools.</code><code class="descname">gzip_compress</code><span class="sig-paren">(</span><em>s</em>, <em>compresslevel=9</em><span class="sig-paren">)</span><a class="headerlink" href="#stringtools.gzip_compress" title="Permalink to this definition">¶</a></dt> <dd><p>Method to compress a stream of bytes.</p> <table class="docutils field-list" frame="void" rules="none"> <col class="field-name" /> <col class="field-body" /> <tbody valign="top"> <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple"> <li><strong>s</strong> (<em>str</em>) – The bytestream (string) to be compressed</li> <li><strong>compresslevel</strong> (<em>int</em>) – An optional compressionn level (default is 9)</li> </ul> </td> </tr> <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">The compressed bytestream</p> </td> </tr> <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">str</p> </td> </tr> </tbody> </table> <p><strong>Example:</strong></p> <div class="highlight-default"><div class="highlight"><pre><span></span><span class="kn">import</span> <span class="nn">stringtools</span> <span class="kn">import</span> <span class="nn">report</span> <span class="kn">import</span> <span class="nn">logging</span> <span class="kn">import</span> <span class="nn">sys</span> <span class="n">logger</span> <span class="o">=</span> <span class="n">report</span><span class="o">.</span><span class="n">getLogger</span><span class="p">(</span><span class="s1">'example'</span><span class="p">,</span> <span class="p">[(</span><span class="n">logging</span><span class="o">.</span><span class="n">DEBUG</span><span class="p">,</span> <span class="n">logging</span><span class="o">.</span><span class="n">StreamHandler</span><span class="p">(</span><span class="n">sys</span><span class="o">.</span><span class="n">stdout</span><span class="p">))],</span> <span class="n">report</span><span class="o">.</span><span class="n">SHORT_FMT</span><span class="p">)</span> <span class="nb">print</span><span class="p">(</span><span class="n">stringtools</span><span class="o">.</span><span class="n">hexlify</span><span class="p">(</span><span class="n">stringtools</span><span class="o">.</span><span class="n">gzip_compress</span><span class="p">(</span><span class="mi">15</span> <span class="o">*</span> <span class="sa">b</span><span class="s1">'</span><span class="se">\x00</span><span class="s1">'</span> <span class="o">+</span> <span class="mi">15</span> <span class="o">*</span> <span class="sa">b</span><span class="s1">'</span><span class="se">\xff</span><span class="s1">'</span><span class="p">,</span> <span class="n">logger</span><span class="o">=</span><span class="n">logger</span><span class="p">)))</span> </pre></div> </div> <p>Will result to the following output:</p> <div class="highlight-default"><div class="highlight"><pre><span></span><span class="mi">2019</span><span class="o">-</span><span class="mi">05</span><span class="o">-</span><span class="mi">22</span> <span class="mi">19</span><span class="p">:</span><span class="mi">14</span><span class="p">:</span><span class="mi">02</span><span class="p">,</span><span class="mi">852</span><span class="p">:</span> <span class="n">DEBUG</span> <span class="o">-</span> <span class="n">Finished</span> <span class="n">to</span> <span class="n">compress</span> <span class="n">a</span> <span class="n">string</span> <span class="p">(</span><span class="n">compression_rate</span><span class="o">=</span><span class="mf">0.867</span><span class="p">,</span> <span class="n">consumed_time</span><span class="o">=</span><span class="mf">0.0</span><span class="n">s</span><span class="p">)</span><span class="o">.</span> <span class="p">(</span><span class="mi">26</span><span class="p">):</span> <span class="mi">1</span><span class="n">f</span> <span class="mi">8</span><span class="n">b</span> <span class="mi">08</span> <span class="mi">00</span> <span class="mi">5</span><span class="n">a</span> <span class="mi">83</span> <span class="n">e5</span> <span class="mi">5</span><span class="n">c</span> <span class="mi">02</span> <span class="n">ff</span> <span class="mi">63</span> <span class="mi">60</span> <span class="mi">40</span> <span class="mi">01</span> <span class="n">ff</span> <span class="mi">51</span> <span class="mi">01</span> <span class="mi">00</span> <span class="mi">2</span><span class="n">d</span> <span class="mi">8</span><span class="n">a</span> <span class="mi">7</span><span class="n">d</span> <span class="n">de</span> <span class="mi">1</span><span class="n">e</span> <span class="mi">00</span> <span class="mi">00</span> <span class="mi">00</span> </pre></div> </div> </dd></dl> <dl class="function"> <dt id="stringtools.gzip_extract"> <code class="descclassname">stringtools.</code><code class="descname">gzip_extract</code><span class="sig-paren">(</span><em>s</em><span class="sig-paren">)</span><a class="headerlink" href="#stringtools.gzip_extract" title="Permalink to this definition">¶</a></dt> <dd><p>Method to extract data from a compress stream of bytes.</p> <table class="docutils field-list" frame="void" rules="none"> <col class="field-name" /> <col class="field-body" /> <tbody valign="top"> <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>s</strong> (<em>str</em>) – The compressed bytestream (string) to be extracted</td> </tr> <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body">The extracted data</td> </tr> <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body">str</td> </tr> </tbody> </table> <p><strong>Example:</strong></p> <div class="highlight-default"><div class="highlight"><pre><span></span><span class="kn">import</span> <span class="nn">stringtools</span> <span class="kn">import</span> <span class="nn">report</span> <span class="kn">import</span> <span class="nn">logging</span> <span class="kn">import</span> <span class="nn">sys</span> <span class="n">logger</span> <span class="o">=</span> <span class="n">report</span><span class="o">.</span><span class="n">getLogger</span><span class="p">(</span><span class="s1">'example'</span><span class="p">,</span> <span class="p">[(</span><span class="n">logging</span><span class="o">.</span><span class="n">DEBUG</span><span class="p">,</span> <span class="n">logging</span><span class="o">.</span><span class="n">StreamHandler</span><span class="p">(</span><span class="n">sys</span><span class="o">.</span><span class="n">stdout</span><span class="p">))],</span> <span class="n">report</span><span class="o">.</span><span class="n">SHORT_FMT</span><span class="p">)</span> <span class="nb">print</span><span class="p">(</span><span class="n">stringtools</span><span class="o">.</span><span class="n">hexlify</span><span class="p">(</span><span class="n">stringtools</span><span class="o">.</span><span class="n">gzip_extract</span><span class="p">(</span><span class="sa">b</span><span class="s1">'</span><span class="se">\x1f\x8b\x08\x00\xd0\x82\xe5\x5c\x02\xff\x63\x60\x40\x01\xff\x51\x01\x00\x2d\x8a\x7d\xde\x1e\x00\x00\x00</span><span class="s1">'</span><span class="p">,</span> <span class="n">logger</span><span class="o">=</span><span class="n">logger</span><span class="p">)))</span> </pre></div> </div> <p>Will result to the following output:</p> <div class="highlight-default"><div class="highlight"><pre><span></span><span class="mi">2019</span><span class="o">-</span><span class="mi">05</span><span class="o">-</span><span class="mi">22</span> <span class="mi">19</span><span class="p">:</span><span class="mi">14</span><span class="p">:</span><span class="mi">09</span><span class="p">,</span><span class="mi">390</span><span class="p">:</span> <span class="n">DEBUG</span> <span class="o">-</span> <span class="n">Finished</span> <span class="n">to</span> <span class="n">extract</span> <span class="n">a</span> <span class="n">string</span> <span class="p">(</span><span class="n">compression_rate</span><span class="o">=</span><span class="mf">0.867</span><span class="p">,</span> <span class="n">consumed_time</span><span class="o">=</span><span class="mf">0.0</span><span class="n">s</span><span class="p">)</span><span class="o">.</span> <span class="p">(</span><span class="mi">30</span><span class="p">):</span> <span class="mi">00</span> <span class="mi">00</span> <span class="mi">00</span> <span class="mi">00</span> <span class="mi">00</span> <span class="mi">00</span> <span class="mi">00</span> <span class="mi">00</span> <span class="mi">00</span> <span class="mi">00</span> <span class="mi">00</span> <span class="mi">00</span> <span class="mi">00</span> <span class="mi">00</span> <span class="mi">00</span> <span class="n">ff</span> <span class="n">ff</span> <span class="n">ff</span> <span class="n">ff</span> <span class="n">ff</span> <span class="n">ff</span> <span class="n">ff</span> <span class="n">ff</span> <span class="n">ff</span> <span class="n">ff</span> <span class="n">ff</span> <span class="n">ff</span> <span class="n">ff</span> <span class="n">ff</span> <span class="n">ff</span> </pre></div> </div> </dd></dl> <dl class="function"> <dt id="stringtools.hexlify"> <code class="descclassname">stringtools.</code><code class="descname">hexlify</code><span class="sig-paren">(</span><em>s</em><span class="sig-paren">)</span><a class="headerlink" href="#stringtools.hexlify" title="Permalink to this definition">¶</a></dt> <dd><p>Method to hexlify a string.</p> <table class="docutils field-list" frame="void" rules="none"> <col class="field-name" /> <col class="field-body" /> <tbody valign="top"> <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>s</strong> (<em>str</em>) – A string including the bytes to be hexlified.</td> </tr> <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body">The hexlified string</td> </tr> <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body">str</td> </tr> </tbody> </table> <p><strong>Example:</strong></p> <div class="highlight-default"><div class="highlight"><pre><span></span><span class="kn">import</span> <span class="nn">stringtools</span> <span class="nb">print</span><span class="p">(</span><span class="n">stringtools</span><span class="o">.</span><span class="n">hexlify</span><span class="p">(</span><span class="sa">b</span><span class="s1">'A stringexample with non printable characters like </span><span class="se">\x12</span><span class="s1">'</span><span class="p">))</span> </pre></div> </div> <p>Will result to the following output:</p> <div class="highlight-default"><div class="highlight"><pre><span></span><span class="p">(</span><span class="mi">52</span><span class="p">):</span> <span class="mi">41</span> <span class="mi">20</span> <span class="mi">73</span> <span class="mi">74</span> <span class="mi">72</span> <span class="mi">69</span> <span class="mi">6</span><span class="n">e</span> <span class="mi">67</span> <span class="mi">65</span> <span class="mi">78</span> <span class="mi">61</span> <span class="mi">6</span><span class="n">d</span> <span class="mi">70</span> <span class="mi">6</span><span class="n">c</span> <span class="mi">65</span> <span class="mi">20</span> <span class="mi">77</span> <span class="mi">69</span> <span class="mi">74</span> <span class="mi">68</span> <span class="mi">20</span> <span class="mi">6</span><span class="n">e</span> <span class="mi">6</span><span class="n">f</span> <span class="mi">6</span><span class="n">e</span> <span class="mi">20</span> <span class="mi">70</span> <span class="mi">72</span> <span class="mi">69</span> <span class="mi">6</span><span class="n">e</span> <span class="mi">74</span> <span class="mi">61</span> <span class="mi">62</span> <span class="mi">6</span><span class="n">c</span> <span class="mi">65</span> <span class="mi">20</span> <span class="mi">63</span> <span class="mi">68</span> <span class="mi">61</span> <span class="mi">72</span> <span class="mi">61</span> <span class="mi">63</span> <span class="mi">74</span> <span class="mi">65</span> <span class="mi">72</span> <span class="mi">73</span> <span class="mi">20</span> <span class="mi">6</span><span class="n">c</span> <span class="mi">69</span> <span class="mi">6</span><span class="n">b</span> <span class="mi">65</span> <span class="mi">20</span> <span class="mi">12</span> </pre></div> </div> </dd></dl> </div> <span class="target" id="module-stringtools.csp"></span><div class="section" id="csp-carriage-return-seperation-protocol"> <h2>csp (Carriage-Return seperation protocol)<a class="headerlink" href="#csp-carriage-return-seperation-protocol" title="Permalink to this headline">¶</a></h2> <p><strong>Author:</strong></p> <ul class="simple"> <li>Dirk Alders <<a class="reference external" href="mailto:sudo-dirk%40mount-mockery.de">sudo-dirk<span>@</span>mount-mockery<span>.</span>de</a>></li> </ul> <p><strong>Description:</strong></p> <blockquote> <div>This module is a submodule of <a class="reference internal" href="#module-stringtools" title="stringtools"><code class="xref py py-mod docutils literal"><span class="pre">stringtools</span></code></a> and creates an frame to transmit and receive messages via an serial interface.</div></blockquote> <p><strong>Submodules:</strong></p> <ul class="simple"> <li><a class="reference internal" href="#stringtools.csp.csp" title="stringtools.csp.csp"><code class="xref py py-class docutils literal"><span class="pre">stringtools.csp.csp</span></code></a></li> <li><a class="reference internal" href="#stringtools.csp.build_frame" title="stringtools.csp.build_frame"><code class="xref py py-func docutils literal"><span class="pre">stringtools.csp.build_frame()</span></code></a></li> </ul> <dl class="function"> <dt id="stringtools.csp.build_frame"> <code class="descclassname">stringtools.csp.</code><code class="descname">build_frame</code><span class="sig-paren">(</span><em>msg</em>, <em>seperator='\n'</em><span class="sig-paren">)</span><a class="headerlink" href="#stringtools.csp.build_frame" title="Permalink to this definition">¶</a></dt> <dd><p>This Method builds an “csp-frame” to be transfered via a stream.</p> <table class="docutils field-list" frame="void" rules="none"> <col class="field-name" /> <col class="field-body" /> <tbody valign="top"> <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>data</strong> (<em>str</em>) – A String (Bytes) to be framed</td> </tr> <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body">The “csp-framed” message to be sent</td> </tr> <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body">str</td> </tr> </tbody> </table> <p><strong>Example:</strong></p> <div class="highlight-default"><div class="highlight"><pre><span></span><span class="kn">import</span> <span class="nn">stringtools</span> <span class="n">data</span> <span class="o">=</span> <span class="sa">b</span><span class="s1">'message'</span> <span class="nb">print</span><span class="p">(</span><span class="n">stringtools</span><span class="o">.</span><span class="n">hexlify</span><span class="p">(</span><span class="n">data</span><span class="p">))</span> <span class="nb">print</span><span class="p">(</span><span class="n">stringtools</span><span class="o">.</span><span class="n">hexlify</span><span class="p">(</span><span class="n">stringtools</span><span class="o">.</span><span class="n">csp</span><span class="o">.</span><span class="n">build_frame</span><span class="p">(</span><span class="n">data</span><span class="p">)))</span> </pre></div> </div> <p>Will result to the following output:</p> <div class="highlight-default"><div class="highlight"><pre><span></span><span class="p">(</span><span class="mi">7</span><span class="p">):</span> <span class="mi">6</span><span class="n">d</span> <span class="mi">65</span> <span class="mi">73</span> <span class="mi">73</span> <span class="mi">61</span> <span class="mi">67</span> <span class="mi">65</span> <span class="p">(</span><span class="mi">8</span><span class="p">):</span> <span class="mi">6</span><span class="n">d</span> <span class="mi">65</span> <span class="mi">73</span> <span class="mi">73</span> <span class="mi">61</span> <span class="mi">67</span> <span class="mi">65</span> <span class="mi">0</span><span class="n">a</span> </pre></div> </div> </dd></dl> <dl class="class"> <dt id="stringtools.csp.csp"> <em class="property">class </em><code class="descclassname">stringtools.csp.</code><code class="descname">csp</code><span class="sig-paren">(</span><em>seperator='n'</em><span class="sig-paren">)</span><a class="headerlink" href="#stringtools.csp.csp" title="Permalink to this definition">¶</a></dt> <dd><p>This class extracts messages from an “csp-stream”.</p> <p><strong>Example:</strong></p> <div class="highlight-default"><div class="highlight"><pre><span></span><span class="kn">import</span> <span class="nn">logging</span> <span class="kn">import</span> <span class="nn">report</span> <span class="kn">import</span> <span class="nn">stringtools</span> <span class="kn">import</span> <span class="nn">sys</span> <span class="n">logger</span> <span class="o">=</span> <span class="n">report</span><span class="o">.</span><span class="n">getLogger</span><span class="p">(</span><span class="s1">'example'</span><span class="p">,</span> <span class="p">[(</span><span class="n">logging</span><span class="o">.</span><span class="n">DEBUG</span><span class="p">,</span> <span class="n">logging</span><span class="o">.</span><span class="n">StreamHandler</span><span class="p">(</span><span class="n">sys</span><span class="o">.</span><span class="n">stdout</span><span class="p">))],</span> <span class="n">report</span><span class="o">.</span><span class="n">SHORT_FMT</span><span class="p">)</span> <span class="n">s</span> <span class="o">=</span> <span class="n">stringtools</span><span class="o">.</span><span class="n">csp</span><span class="o">.</span><span class="n">csp</span><span class="p">()</span> <span class="k">for</span> <span class="n">byte</span> <span class="ow">in</span> <span class="sa">b</span><span class="s1">'message</span><span class="se">\n</span><span class="s1">'</span><span class="p">:</span> <span class="n">data</span> <span class="o">=</span> <span class="n">s</span><span class="o">.</span><span class="n">process</span><span class="p">(</span><span class="n">byte</span><span class="p">,</span> <span class="n">logger</span><span class="p">)</span> <span class="k">if</span> <span class="n">data</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span> <span class="nb">print</span><span class="p">(</span><span class="n">data</span><span class="p">)</span> </pre></div> </div> <p>Will result to the following output:</p> <div class="highlight-default"><div class="highlight"><pre><span></span><span class="mi">2019</span><span class="o">-</span><span class="mi">05</span><span class="o">-</span><span class="mi">22</span> <span class="mi">18</span><span class="p">:</span><span class="mi">41</span><span class="p">:</span><span class="mi">54</span><span class="p">,</span><span class="mi">305</span><span class="p">:</span> <span class="n">DEBUG</span> <span class="o">-</span> <span class="n">CSP</span><span class="p">:</span> <span class="n">Adding</span> <span class="sa">b</span><span class="s1">'m'</span> <span class="n">to</span> <span class="n">buffer</span> <span class="mi">2019</span><span class="o">-</span><span class="mi">05</span><span class="o">-</span><span class="mi">22</span> <span class="mi">18</span><span class="p">:</span><span class="mi">41</span><span class="p">:</span><span class="mi">54</span><span class="p">,</span><span class="mi">305</span><span class="p">:</span> <span class="n">DEBUG</span> <span class="o">-</span> <span class="n">CSP</span><span class="p">:</span> <span class="n">Adding</span> <span class="sa">b</span><span class="s1">'e'</span> <span class="n">to</span> <span class="n">buffer</span> <span class="mi">2019</span><span class="o">-</span><span class="mi">05</span><span class="o">-</span><span class="mi">22</span> <span class="mi">18</span><span class="p">:</span><span class="mi">41</span><span class="p">:</span><span class="mi">54</span><span class="p">,</span><span class="mi">305</span><span class="p">:</span> <span class="n">DEBUG</span> <span class="o">-</span> <span class="n">CSP</span><span class="p">:</span> <span class="n">Adding</span> <span class="sa">b</span><span class="s1">'s'</span> <span class="n">to</span> <span class="n">buffer</span> <span class="mi">2019</span><span class="o">-</span><span class="mi">05</span><span class="o">-</span><span class="mi">22</span> <span class="mi">18</span><span class="p">:</span><span class="mi">41</span><span class="p">:</span><span class="mi">54</span><span class="p">,</span><span class="mi">305</span><span class="p">:</span> <span class="n">DEBUG</span> <span class="o">-</span> <span class="n">CSP</span><span class="p">:</span> <span class="n">Adding</span> <span class="sa">b</span><span class="s1">'s'</span> <span class="n">to</span> <span class="n">buffer</span> <span class="mi">2019</span><span class="o">-</span><span class="mi">05</span><span class="o">-</span><span class="mi">22</span> <span class="mi">18</span><span class="p">:</span><span class="mi">41</span><span class="p">:</span><span class="mi">54</span><span class="p">,</span><span class="mi">305</span><span class="p">:</span> <span class="n">DEBUG</span> <span class="o">-</span> <span class="n">CSP</span><span class="p">:</span> <span class="n">Adding</span> <span class="sa">b</span><span class="s1">'a'</span> <span class="n">to</span> <span class="n">buffer</span> <span class="mi">2019</span><span class="o">-</span><span class="mi">05</span><span class="o">-</span><span class="mi">22</span> <span class="mi">18</span><span class="p">:</span><span class="mi">41</span><span class="p">:</span><span class="mi">54</span><span class="p">,</span><span class="mi">305</span><span class="p">:</span> <span class="n">DEBUG</span> <span class="o">-</span> <span class="n">CSP</span><span class="p">:</span> <span class="n">Adding</span> <span class="sa">b</span><span class="s1">'g'</span> <span class="n">to</span> <span class="n">buffer</span> <span class="mi">2019</span><span class="o">-</span><span class="mi">05</span><span class="o">-</span><span class="mi">22</span> <span class="mi">18</span><span class="p">:</span><span class="mi">41</span><span class="p">:</span><span class="mi">54</span><span class="p">,</span><span class="mi">305</span><span class="p">:</span> <span class="n">DEBUG</span> <span class="o">-</span> <span class="n">CSP</span><span class="p">:</span> <span class="n">Adding</span> <span class="sa">b</span><span class="s1">'e'</span> <span class="n">to</span> <span class="n">buffer</span> <span class="mi">2019</span><span class="o">-</span><span class="mi">05</span><span class="o">-</span><span class="mi">22</span> <span class="mi">18</span><span class="p">:</span><span class="mi">41</span><span class="p">:</span><span class="mi">54</span><span class="p">,</span><span class="mi">305</span><span class="p">:</span> <span class="n">DEBUG</span> <span class="o">-</span> <span class="n">CSP</span><span class="p">:</span> <span class="n">Message</span> <span class="n">identified</span> <span class="n">by</span> <span class="n">seperator</span> <span class="mi">0</span><span class="n">a</span> <span class="sa">b</span><span class="s1">'message'</span> </pre></div> </div> <dl class="method"> <dt id="stringtools.csp.csp.process"> <code class="descname">process</code><span class="sig-paren">(</span><em>data</em><span class="sig-paren">)</span><a class="headerlink" href="#stringtools.csp.csp.process" title="Permalink to this definition">¶</a></dt> <dd><p>This processes a byte out of a “stp-stream”.</p> <table class="docutils field-list" frame="void" rules="none"> <col class="field-name" /> <col class="field-body" /> <tbody valign="top"> <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>data</strong> (<em>bytes</em>) – A byte stream</td> </tr> <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body">A list of the extracted message(s)</td> </tr> <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body">list</td> </tr> </tbody> </table> </dd></dl> </dd></dl> </div> <span class="target" id="module-stringtools.stp"></span><div class="section" id="stp-serial-transfer-protocol"> <h2>stp (Serial transfer protocol)<a class="headerlink" href="#stp-serial-transfer-protocol" title="Permalink to this headline">¶</a></h2> <p><strong>Author:</strong></p> <ul class="simple"> <li>Dirk Alders <<a class="reference external" href="mailto:sudo-dirk%40mount-mockery.de">sudo-dirk<span>@</span>mount-mockery<span>.</span>de</a>></li> </ul> <p><strong>Description:</strong></p> <blockquote> <div>This module is a submodule of <a class="reference internal" href="#module-stringtools" title="stringtools"><code class="xref py py-mod docutils literal"><span class="pre">stringtools</span></code></a> and creates an serial frame to transmit and receive messages via an serial interface.</div></blockquote> <p><strong>Submodules:</strong></p> <ul class="simple"> <li><a class="reference internal" href="#stringtools.stp.stp" title="stringtools.stp.stp"><code class="xref py py-class docutils literal"><span class="pre">stringtools.stp.stp</span></code></a></li> <li><a class="reference internal" href="#stringtools.stp.build_frame" title="stringtools.stp.build_frame"><code class="xref py py-func docutils literal"><span class="pre">stringtools.stp.build_frame()</span></code></a></li> </ul> <dl class="data"> <dt id="stringtools.stp.DATA_CLEAR_BUFFER"> <code class="descclassname">stringtools.stp.</code><code class="descname">DATA_CLEAR_BUFFER</code><em class="property"> = '<'</em><a class="headerlink" href="#stringtools.stp.DATA_CLEAR_BUFFER" title="Permalink to this definition">¶</a></dt> <dd><p>The clear buffer byte (‘\x3a\x3c’ -> start of message)</p> </dd></dl> <dl class="data"> <dt id="stringtools.stp.DATA_STORE_SYNC_VALUE"> <code class="descclassname">stringtools.stp.</code><code class="descname">DATA_STORE_SYNC_VALUE</code><em class="property"> = '='</em><a class="headerlink" href="#stringtools.stp.DATA_STORE_SYNC_VALUE" title="Permalink to this definition">¶</a></dt> <dd><p>The store sync value byte (‘\x3a\x3d’ -> ‘\x3a’ inside a message)</p> </dd></dl> <dl class="data"> <dt id="stringtools.stp.DATA_SYNC"> <code class="descclassname">stringtools.stp.</code><code class="descname">DATA_SYNC</code><em class="property"> = ':'</em><a class="headerlink" href="#stringtools.stp.DATA_SYNC" title="Permalink to this definition">¶</a></dt> <dd><p>The data sync byte</p> </dd></dl> <dl class="data"> <dt id="stringtools.stp.DATA_VALID_MSG"> <code class="descclassname">stringtools.stp.</code><code class="descname">DATA_VALID_MSG</code><em class="property"> = '>'</em><a class="headerlink" href="#stringtools.stp.DATA_VALID_MSG" title="Permalink to this definition">¶</a></dt> <dd><p>The valid message byte (‘\x3a\x3e’ -> end of message)</p> </dd></dl> <dl class="data"> <dt id="stringtools.stp.STP_STATE_ESCAPE_1"> <code class="descclassname">stringtools.stp.</code><code class="descname">STP_STATE_ESCAPE_1</code><em class="property"> = 1</em><a class="headerlink" href="#stringtools.stp.STP_STATE_ESCAPE_1" title="Permalink to this definition">¶</a></dt> <dd><p>Escape 1 state definition (‘\x3a\x3c’ found)</p> </dd></dl> <dl class="data"> <dt id="stringtools.stp.STP_STATE_ESCAPE_2"> <code class="descclassname">stringtools.stp.</code><code class="descname">STP_STATE_ESCAPE_2</code><em class="property"> = 2</em><a class="headerlink" href="#stringtools.stp.STP_STATE_ESCAPE_2" title="Permalink to this definition">¶</a></dt> <dd><p>Escape 2 state definition (‘\x3a’ found inside a message)</p> </dd></dl> <dl class="data"> <dt id="stringtools.stp.STP_STATE_IDLE"> <code class="descclassname">stringtools.stp.</code><code class="descname">STP_STATE_IDLE</code><em class="property"> = 0</em><a class="headerlink" href="#stringtools.stp.STP_STATE_IDLE" title="Permalink to this definition">¶</a></dt> <dd><p>Idle state definition (default)</p> </dd></dl> <dl class="data"> <dt id="stringtools.stp.STP_STATE_STORE_DATA"> <code class="descclassname">stringtools.stp.</code><code class="descname">STP_STATE_STORE_DATA</code><em class="property"> = 3</em><a class="headerlink" href="#stringtools.stp.STP_STATE_STORE_DATA" title="Permalink to this definition">¶</a></dt> <dd><p>Store data state definition (start of message found; data will be stored)</p> </dd></dl> <dl class="function"> <dt id="stringtools.stp.build_frame"> <code class="descclassname">stringtools.stp.</code><code class="descname">build_frame</code><span class="sig-paren">(</span><em>data</em><span class="sig-paren">)</span><a class="headerlink" href="#stringtools.stp.build_frame" title="Permalink to this definition">¶</a></dt> <dd><p>This Method builds an “stp-frame” to be transfered via a stream.</p> <table class="docutils field-list" frame="void" rules="none"> <col class="field-name" /> <col class="field-body" /> <tbody valign="top"> <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>data</strong> (<em>str</em>) – A String (Bytes) to be framed</td> </tr> <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body">The “stp-framed” message to be sent</td> </tr> <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body">str</td> </tr> </tbody> </table> <p><strong>Example:</strong></p> <div class="highlight-default"><div class="highlight"><pre><span></span><span class="kn">import</span> <span class="nn">stringtools</span> <span class="nb">print</span><span class="p">(</span><span class="n">stringtools</span><span class="o">.</span><span class="n">stp</span><span class="o">.</span><span class="n">build_frame</span><span class="p">(</span><span class="sa">b</span><span class="s1">':message:'</span><span class="p">))</span> </pre></div> </div> <p>Will result to the following output:</p> <div class="highlight-default"><div class="highlight"><pre><span></span><span class="sa">b</span><span class="s1">':<:=message:=:>'</span> </pre></div> </div> </dd></dl> <dl class="class"> <dt id="stringtools.stp.stp"> <em class="property">class </em><code class="descclassname">stringtools.stp.</code><code class="descname">stp</code><a class="headerlink" href="#stringtools.stp.stp" title="Permalink to this definition">¶</a></dt> <dd><p>This class extracts messages from an “stp-stream”.</p> <p><strong>Example:</strong></p> <div class="highlight-default"><div class="highlight"><pre><span></span><span class="kn">import</span> <span class="nn">logging</span> <span class="kn">import</span> <span class="nn">report</span> <span class="kn">import</span> <span class="nn">stringtools</span> <span class="kn">import</span> <span class="nn">sys</span> <span class="n">logger</span> <span class="o">=</span> <span class="n">report</span><span class="o">.</span><span class="n">getLogger</span><span class="p">(</span><span class="s1">'example'</span><span class="p">,</span> <span class="p">[(</span><span class="n">logging</span><span class="o">.</span><span class="n">DEBUG</span><span class="p">,</span> <span class="n">logging</span><span class="o">.</span><span class="n">StreamHandler</span><span class="p">(</span><span class="n">sys</span><span class="o">.</span><span class="n">stdout</span><span class="p">))],</span> <span class="n">report</span><span class="o">.</span><span class="n">SHORT_FMT</span><span class="p">)</span> <span class="n">s</span> <span class="o">=</span> <span class="n">stringtools</span><span class="o">.</span><span class="n">stp</span><span class="o">.</span><span class="n">stp</span><span class="p">()</span> <span class="k">for</span> <span class="n">byte</span> <span class="ow">in</span> <span class="sa">b</span><span class="s1">':<:=message:=:>'</span><span class="p">:</span> <span class="n">data</span> <span class="o">=</span> <span class="n">s</span><span class="o">.</span><span class="n">process</span><span class="p">(</span><span class="n">byte</span><span class="p">,</span> <span class="n">logger</span><span class="p">)</span> <span class="k">if</span> <span class="n">data</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span> <span class="nb">print</span><span class="p">(</span><span class="n">data</span><span class="p">)</span> </pre></div> </div> <p>Will result to the following output:</p> <div class="highlight-default"><div class="highlight"><pre><span></span><span class="mi">2019</span><span class="o">-</span><span class="mi">05</span><span class="o">-</span><span class="mi">22</span> <span class="mi">18</span><span class="p">:</span><span class="mi">43</span><span class="p">:</span><span class="mi">14</span><span class="p">,</span><span class="mi">476</span><span class="p">:</span> <span class="n">DEBUG</span> <span class="o">-</span> <span class="n">STP</span><span class="p">:</span> <span class="n">data</span> <span class="n">sync</span> <span class="p">(</span><span class="mi">3</span><span class="n">a</span><span class="p">)</span> <span class="n">received</span> <span class="o">=></span> <span class="n">changing</span> <span class="n">state</span> <span class="n">STP_STATE_IDLE</span> <span class="o">-></span> <span class="n">STP_STATE_ESCAPE_1</span> <span class="mi">2019</span><span class="o">-</span><span class="mi">05</span><span class="o">-</span><span class="mi">22</span> <span class="mi">18</span><span class="p">:</span><span class="mi">43</span><span class="p">:</span><span class="mi">14</span><span class="p">,</span><span class="mi">476</span><span class="p">:</span> <span class="n">DEBUG</span> <span class="o">-</span> <span class="n">STP</span><span class="p">:</span> <span class="n">clear</span> <span class="n">buffer</span> <span class="p">(</span><span class="mi">3</span><span class="n">c</span><span class="p">)</span> <span class="n">received</span> <span class="o">=></span> <span class="n">changing</span> <span class="n">state</span> <span class="n">STP_STATE_ESCAPE_1</span> <span class="o">-></span> <span class="n">STP_STATE_STORE_DATA</span> <span class="mi">2019</span><span class="o">-</span><span class="mi">05</span><span class="o">-</span><span class="mi">22</span> <span class="mi">18</span><span class="p">:</span><span class="mi">43</span><span class="p">:</span><span class="mi">14</span><span class="p">,</span><span class="mi">476</span><span class="p">:</span> <span class="n">DEBUG</span> <span class="o">-</span> <span class="n">STP</span><span class="p">:</span> <span class="n">data</span> <span class="n">sync</span> <span class="p">(</span><span class="mi">3</span><span class="n">a</span><span class="p">)</span> <span class="n">received</span> <span class="o">=></span> <span class="n">changing</span> <span class="n">state</span> <span class="n">STP_STATE_STORE_DATA</span> <span class="o">-></span> <span class="n">STP_STATE_ESCAPE_2</span> <span class="mi">2019</span><span class="o">-</span><span class="mi">05</span><span class="o">-</span><span class="mi">22</span> <span class="mi">18</span><span class="p">:</span><span class="mi">43</span><span class="p">:</span><span class="mi">14</span><span class="p">,</span><span class="mi">476</span><span class="p">:</span> <span class="n">DEBUG</span> <span class="o">-</span> <span class="n">STP</span><span class="p">:</span> <span class="n">store</span> <span class="n">sync</span> <span class="n">value</span> <span class="p">(</span><span class="mi">3</span><span class="n">d</span><span class="p">)</span> <span class="n">received</span> <span class="o">=></span> <span class="n">changing</span> <span class="n">state</span> <span class="n">STP_STATE_ESCAPE_2</span> <span class="o">-></span> <span class="n">STP_STATE_STORE_DATA</span> <span class="mi">2019</span><span class="o">-</span><span class="mi">05</span><span class="o">-</span><span class="mi">22</span> <span class="mi">18</span><span class="p">:</span><span class="mi">43</span><span class="p">:</span><span class="mi">14</span><span class="p">,</span><span class="mi">476</span><span class="p">:</span> <span class="n">DEBUG</span> <span class="o">-</span> <span class="n">STP</span><span class="p">:</span> <span class="n">data</span> <span class="n">sync</span> <span class="p">(</span><span class="mi">3</span><span class="n">a</span><span class="p">)</span> <span class="n">received</span> <span class="o">=></span> <span class="n">changing</span> <span class="n">state</span> <span class="n">STP_STATE_STORE_DATA</span> <span class="o">-></span> <span class="n">STP_STATE_ESCAPE_2</span> <span class="mi">2019</span><span class="o">-</span><span class="mi">05</span><span class="o">-</span><span class="mi">22</span> <span class="mi">18</span><span class="p">:</span><span class="mi">43</span><span class="p">:</span><span class="mi">14</span><span class="p">,</span><span class="mi">476</span><span class="p">:</span> <span class="n">DEBUG</span> <span class="o">-</span> <span class="n">STP</span><span class="p">:</span> <span class="n">store</span> <span class="n">sync</span> <span class="n">value</span> <span class="p">(</span><span class="mi">3</span><span class="n">d</span><span class="p">)</span> <span class="n">received</span> <span class="o">=></span> <span class="n">changing</span> <span class="n">state</span> <span class="n">STP_STATE_ESCAPE_2</span> <span class="o">-></span> <span class="n">STP_STATE_STORE_DATA</span> <span class="mi">2019</span><span class="o">-</span><span class="mi">05</span><span class="o">-</span><span class="mi">22</span> <span class="mi">18</span><span class="p">:</span><span class="mi">43</span><span class="p">:</span><span class="mi">14</span><span class="p">,</span><span class="mi">476</span><span class="p">:</span> <span class="n">DEBUG</span> <span class="o">-</span> <span class="n">STP</span><span class="p">:</span> <span class="n">data</span> <span class="n">sync</span> <span class="p">(</span><span class="mi">3</span><span class="n">a</span><span class="p">)</span> <span class="n">received</span> <span class="o">=></span> <span class="n">changing</span> <span class="n">state</span> <span class="n">STP_STATE_STORE_DATA</span> <span class="o">-></span> <span class="n">STP_STATE_ESCAPE_2</span> <span class="mi">2019</span><span class="o">-</span><span class="mi">05</span><span class="o">-</span><span class="mi">22</span> <span class="mi">18</span><span class="p">:</span><span class="mi">43</span><span class="p">:</span><span class="mi">14</span><span class="p">,</span><span class="mi">476</span><span class="p">:</span> <span class="n">DEBUG</span> <span class="o">-</span> <span class="n">STP</span><span class="p">:</span> <span class="n">message</span> <span class="n">completed</span> <span class="p">(</span><span class="mi">3</span><span class="n">e</span><span class="p">)</span> <span class="o">=></span> <span class="n">changing</span> <span class="n">state</span> <span class="n">STP_STATE_ESCAPE_2</span> <span class="o">-></span> <span class="n">STP_STATE_IDLE</span> <span class="sa">b</span><span class="s1">':message:'</span> </pre></div> </div> <dl class="method"> <dt id="stringtools.stp.stp.process"> <code class="descname">process</code><span class="sig-paren">(</span><em>data</em><span class="sig-paren">)</span><a class="headerlink" href="#stringtools.stp.stp.process" title="Permalink to this definition">¶</a></dt> <dd><p>This processes a byte out of a “stp-stream”.</p> <table class="docutils field-list" frame="void" rules="none"> <col class="field-name" /> <col class="field-body" /> <tbody valign="top"> <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>data</strong> (<em>bytes</em>) – A byte stream</td> </tr> <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body">The extracted message or None, if no message is identified yet</td> </tr> <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body">str</td> </tr> </tbody> </table> </dd></dl> </dd></dl> </div> <div class="toctree-wrapper compound"> </div> </div> <div class="section" id="indices-and-tables"> <h1>Indices and tables<a class="headerlink" href="#indices-and-tables" title="Permalink to this headline">¶</a></h1> <ul class="simple"> <li><a class="reference internal" href="genindex.html"><span class="std std-ref">Index</span></a></li> <li><a class="reference internal" href="py-modindex.html"><span class="std std-ref">Module Index</span></a></li> <li><a class="reference internal" href="search.html"><span class="std std-ref">Search Page</span></a></li> </ul> </div> </div> </div> </div> <div class="sphinxsidebar" role="navigation" aria-label="main navigation"> <div class="sphinxsidebarwrapper"><div class="relations"> <h3>Related Topics</h3> <ul> <li><a href="#">Documentation overview</a><ul> </ul></li> </ul> </div> <div id="searchbox" style="display: none" role="search"> <h3>Quick search</h3> <form class="search" action="search.html" method="get"> <div><input type="text" name="q" /></div> <div><input type="submit" value="Go" /></div> <input type="hidden" name="check_keywords" value="yes" /> <input type="hidden" name="area" value="default" /> </form> </div> <script type="text/javascript">$('#searchbox').show(0);</script> </div> </div> <div class="clearer"></div> </div> <div class="footer"> ©2019, Dirk Alders. | Powered by <a 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