| <html> |
| <head> |
| <style type="text/css"> |
| .hll { background-color: #ffffcc } |
| .c { color: #888888 } /* Comment */ |
| .err { color: #a61717; background-color: #e3d2d2 } /* Error */ |
| .k { color: #008800; font-weight: bold } /* Keyword */ |
| .cm { color: #888888 } /* Comment.Multiline */ |
| .cp { color: #cc0000; font-weight: bold } /* Comment.Preproc */ |
| .c1 { color: #888888 } /* Comment.Single */ |
| .cs { color: #cc0000; font-weight: bold; background-color: #fff0f0 } /* Comment.Special */ |
| .gd { color: #000000; background-color: #ffdddd } /* Generic.Deleted */ |
| .ge { font-style: italic } /* Generic.Emph */ |
| .gr { color: #aa0000 } /* Generic.Error */ |
| .gh { color: #333333 } /* Generic.Heading */ |
| .gi { color: #000000; background-color: #ddffdd } /* Generic.Inserted */ |
| .go { color: #888888 } /* Generic.Output */ |
| .gp { color: #555555 } /* Generic.Prompt */ |
| .gs { font-weight: bold } /* Generic.Strong */ |
| .gu { color: #666666 } /* Generic.Subheading */ |
| .gt { color: #aa0000 } /* Generic.Traceback */ |
| .kc { color: #008800; font-weight: bold } /* Keyword.Constant */ |
| .kd { color: #008800; font-weight: bold } /* Keyword.Declaration */ |
| .kn { color: #008800; font-weight: bold } /* Keyword.Namespace */ |
| .kp { color: #008800 } /* Keyword.Pseudo */ |
| .kr { color: #008800; font-weight: bold } /* Keyword.Reserved */ |
| .kt { color: #888888; font-weight: bold } /* Keyword.Type */ |
| .m { color: #0000DD; font-weight: bold } /* Literal.Number */ |
| .s { color: #dd2200; background-color: #fff0f0 } /* Literal.String */ |
| .na { color: #336699 } /* Name.Attribute */ |
| .nb { color: #003388 } /* Name.Builtin */ |
| .nc { color: #bb0066; font-weight: bold } /* Name.Class */ |
| .no { color: #003366; font-weight: bold } /* Name.Constant */ |
| .nd { color: #555555 } /* Name.Decorator */ |
| .ne { color: #bb0066; font-weight: bold } /* Name.Exception */ |
| .nf { color: #0066bb; font-weight: bold } /* Name.Function */ |
| .nl { color: #336699; font-style: italic } /* Name.Label */ |
| .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */ |
| .py { color: #336699; font-weight: bold } /* Name.Property */ |
| .nt { color: #bb0066; font-weight: bold } /* Name.Tag */ |
| .nv { color: #336699 } /* Name.Variable */ |
| .ow { color: #008800 } /* Operator.Word */ |
| .w { color: #bbbbbb } /* Text.Whitespace */ |
| .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */ |
| .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */ |
| .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */ |
| .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */ |
| .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */ |
| .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */ |
| .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */ |
| .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */ |
| .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */ |
| .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */ |
| .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */ |
| .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */ |
| .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */ |
| .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */ |
| .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */ |
| .bp { color: #003388 } /* Name.Builtin.Pseudo */ |
| .vc { color: #336699 } /* Name.Variable.Class */ |
| .vg { color: #dd7700 } /* Name.Variable.Global */ |
| .vi { color: #3333bb } /* Name.Variable.Instance */ |
| .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */ |
| </style> |
| </head> |
| <body> |
| |
| <h1>Topics</h1> |
| <pre> |
| <div class="highlight"><pre><a name="Topics.py-pyg.html-1"></a><span class="sd">"""</span> |
| <a name="Topics.py-pyg.html-2"></a><span class="sd">*******************************************************************</span> |
| <a name="Topics.py-pyg.html-3"></a><span class="sd"> Copyright (c) 2013, 2014 IBM Corp.</span> |
| <a name="Topics.py-pyg.html-4"></a><span class="sd"> </span> |
| <a name="Topics.py-pyg.html-5"></a><span class="sd"> All rights reserved. This program and the accompanying materials</span> |
| <a name="Topics.py-pyg.html-6"></a><span class="sd"> are made available under the terms of the Eclipse Public License v1.0</span> |
| <a name="Topics.py-pyg.html-7"></a><span class="sd"> and Eclipse Distribution License v1.0 which accompany this distribution. </span> |
| <a name="Topics.py-pyg.html-8"></a><span class="sd"> </span> |
| <a name="Topics.py-pyg.html-9"></a><span class="sd"> The Eclipse Public License is available at </span> |
| <a name="Topics.py-pyg.html-10"></a><span class="sd"> http://www.eclipse.org/legal/epl-v10.html</span> |
| <a name="Topics.py-pyg.html-11"></a><span class="sd"> and the Eclipse Distribution License is available at </span> |
| <a name="Topics.py-pyg.html-12"></a><span class="sd"> http://www.eclipse.org/org/documents/edl-v10.php.</span> |
| <a name="Topics.py-pyg.html-13"></a><span class="sd"> </span> |
| <a name="Topics.py-pyg.html-14"></a><span class="sd"> Contributors:</span> |
| <a name="Topics.py-pyg.html-15"></a><span class="sd"> Ian Craggs - initial implementation and/or documentation</span> |
| <a name="Topics.py-pyg.html-16"></a><span class="sd">*******************************************************************</span> |
| <a name="Topics.py-pyg.html-17"></a><span class="sd">"""</span> |
| <a name="Topics.py-pyg.html-18"></a> |
| <a name="Topics.py-pyg.html-19"></a> |
| <a name="Topics.py-pyg.html-20"></a><span class="kn">import</span> <span class="nn">re</span><span class="o">,</span> <span class="nn">logging</span> |
| <a name="Topics.py-pyg.html-21"></a> |
| <a name="Topics.py-pyg.html-22"></a><span class="n">logger</span> <span class="o">=</span> <span class="n">logging</span><span class="o">.</span><span class="n">getLogger</span><span class="p">(</span><span class="s">'MQTT broker'</span><span class="p">)</span> |
| <a name="Topics.py-pyg.html-23"></a> |
| <a name="Topics.py-pyg.html-24"></a> |
| <a name="Topics.py-pyg.html-25"></a><span class="k">def</span> <span class="nf">isValidTopicName</span><span class="p">(</span><span class="n">aName</span><span class="p">):</span> |
| <a name="Topics.py-pyg.html-26"></a> <span class="n">rc</span> <span class="o">=</span> <span class="bp">True</span> |
| <a name="Topics.py-pyg.html-27"></a> |
| <a name="Topics.py-pyg.html-28"></a> <span class="c"># '#' wildcard can be only at the beginning or the end of a topic</span> |
| <a name="Topics.py-pyg.html-29"></a> <span class="k">if</span> <span class="n">aName</span><span class="p">[</span><span class="mi">1</span><span class="p">:</span><span class="o">-</span><span class="mi">1</span><span class="p">]</span><span class="o">.</span><span class="n">find</span><span class="p">(</span><span class="s">'#'</span><span class="p">)</span> <span class="o">!=</span> <span class="o">-</span><span class="mi">1</span><span class="p">:</span> |
| <a name="Topics.py-pyg.html-30"></a> <span class="n">rc</span> <span class="o">=</span> <span class="bp">False</span> |
| <a name="Topics.py-pyg.html-31"></a> |
| <a name="Topics.py-pyg.html-32"></a> <span class="c"># '#' or '+' only next to a slash separator or end of name</span> |
| <a name="Topics.py-pyg.html-33"></a> <span class="n">wilds</span> <span class="o">=</span> <span class="s">'#+'</span> |
| <a name="Topics.py-pyg.html-34"></a> <span class="k">for</span> <span class="n">c</span> <span class="ow">in</span> <span class="n">wilds</span><span class="p">:</span> |
| <a name="Topics.py-pyg.html-35"></a> <span class="n">pos</span> <span class="o">=</span> <span class="mi">0</span> |
| <a name="Topics.py-pyg.html-36"></a> <span class="n">pos</span> <span class="o">=</span> <span class="n">aName</span><span class="o">.</span><span class="n">find</span><span class="p">(</span><span class="n">c</span><span class="p">,</span> <span class="n">pos</span><span class="p">)</span> |
| <a name="Topics.py-pyg.html-37"></a> <span class="k">while</span> <span class="n">pos</span> <span class="o">!=</span> <span class="o">-</span><span class="mi">1</span><span class="p">:</span> |
| <a name="Topics.py-pyg.html-38"></a> <span class="k">if</span> <span class="n">pos</span> <span class="o">></span> <span class="mi">0</span><span class="p">:</span> <span class="c"># check previous char is '/'</span> |
| <a name="Topics.py-pyg.html-39"></a> <span class="k">if</span> <span class="n">aName</span><span class="p">[</span><span class="n">pos</span><span class="o">-</span><span class="mi">1</span><span class="p">]</span> <span class="o">!=</span> <span class="s">'/'</span><span class="p">:</span> |
| <a name="Topics.py-pyg.html-40"></a> <span class="n">rc</span> <span class="o">=</span> <span class="bp">False</span> |
| <a name="Topics.py-pyg.html-41"></a> <span class="k">if</span> <span class="n">pos</span> <span class="o"><</span> <span class="nb">len</span><span class="p">(</span><span class="n">aName</span><span class="p">)</span><span class="o">-</span><span class="mi">1</span><span class="p">:</span> <span class="c"># check that subsequent char is '/'</span> |
| <a name="Topics.py-pyg.html-42"></a> <span class="k">if</span> <span class="n">aName</span><span class="p">[</span><span class="n">pos</span><span class="o">+</span><span class="mi">1</span><span class="p">]</span> <span class="o">!=</span> <span class="s">'/'</span><span class="p">:</span> |
| <a name="Topics.py-pyg.html-43"></a> <span class="n">rc</span> <span class="o">=</span> <span class="bp">False</span> |
| <a name="Topics.py-pyg.html-44"></a> <span class="n">pos</span> <span class="o">=</span> <span class="n">aName</span><span class="o">.</span><span class="n">find</span><span class="p">(</span><span class="n">c</span><span class="p">,</span> <span class="n">pos</span><span class="o">+</span><span class="mi">1</span><span class="p">)</span> |
| <a name="Topics.py-pyg.html-45"></a> |
| <a name="Topics.py-pyg.html-46"></a> <span class="k">return</span> <span class="n">rc</span> |
| <a name="Topics.py-pyg.html-47"></a> |
| <a name="Topics.py-pyg.html-48"></a><span class="k">def</span> <span class="nf">topicMatches</span><span class="p">(</span><span class="n">wild</span><span class="p">,</span> <span class="n">nonwild</span><span class="p">,</span> <span class="n">wildCheck</span><span class="o">=</span><span class="bp">True</span><span class="p">):</span> |
| <a name="Topics.py-pyg.html-49"></a> |
| <a name="Topics.py-pyg.html-50"></a> <span class="k">if</span> <span class="n">wildCheck</span><span class="p">:</span> |
| <a name="Topics.py-pyg.html-51"></a> <span class="k">assert</span> <span class="n">nonwild</span><span class="o">.</span><span class="n">find</span><span class="p">(</span><span class="s">'+'</span><span class="p">)</span> <span class="o">==</span> <span class="n">nonwild</span><span class="o">.</span><span class="n">find</span><span class="p">(</span><span class="s">'#'</span><span class="p">)</span> <span class="o">==</span> <span class="o">-</span><span class="mi">1</span> |
| <a name="Topics.py-pyg.html-52"></a> <span class="k">assert</span> <span class="n">isValidTopicName</span><span class="p">(</span><span class="n">wild</span><span class="p">)</span> <span class="ow">and</span> <span class="n">isValidTopicName</span><span class="p">(</span><span class="n">nonwild</span><span class="p">)</span> |
| <a name="Topics.py-pyg.html-53"></a> |
| <a name="Topics.py-pyg.html-54"></a> <span class="n">rc</span> <span class="o">=</span> <span class="bp">False</span> |
| <a name="Topics.py-pyg.html-55"></a> <span class="k">if</span> <span class="n">wild</span><span class="o">.</span><span class="n">find</span><span class="p">(</span><span class="s">'+'</span><span class="p">)</span> <span class="o">==</span> <span class="n">wild</span><span class="o">.</span><span class="n">find</span><span class="p">(</span><span class="s">'#'</span><span class="p">)</span> <span class="o">==</span> <span class="o">-</span><span class="mi">1</span><span class="p">:</span> |
| <a name="Topics.py-pyg.html-56"></a> <span class="c"># no wildcards, so check is simple</span> |
| <a name="Topics.py-pyg.html-57"></a> <span class="n">rc</span> <span class="o">=</span> <span class="p">(</span><span class="n">wild</span> <span class="o">==</span> <span class="n">nonwild</span><span class="p">)</span> |
| <a name="Topics.py-pyg.html-58"></a> <span class="k">else</span><span class="p">:</span> |
| <a name="Topics.py-pyg.html-59"></a> <span class="c"># we have wildcards. Escape metacharacters, except +</span> |
| <a name="Topics.py-pyg.html-60"></a> <span class="n">metachars</span> <span class="o">=</span> <span class="s">'</span><span class="se">\\</span><span class="s">.^$*?{[]|()'</span> <span class="c"># make sure \\ is at beginning of this string</span> |
| <a name="Topics.py-pyg.html-61"></a> <span class="k">for</span> <span class="n">s</span> <span class="ow">in</span> <span class="n">metachars</span><span class="p">:</span> |
| <a name="Topics.py-pyg.html-62"></a> <span class="n">wild</span> <span class="o">=</span> <span class="n">wild</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="s">'</span><span class="se">\\</span><span class="s">'</span><span class="o">+</span><span class="n">s</span><span class="p">)</span> |
| <a name="Topics.py-pyg.html-63"></a> |
| <a name="Topics.py-pyg.html-64"></a> <span class="c"># now replace wildcards with regular expressions and match</span> |
| <a name="Topics.py-pyg.html-65"></a> <span class="k">if</span> <span class="n">wild</span> <span class="o">==</span> <span class="s">'#'</span><span class="p">:</span> |
| <a name="Topics.py-pyg.html-66"></a> <span class="s">"# on its own matches everything"</span> |
| <a name="Topics.py-pyg.html-67"></a> <span class="n">wild</span> <span class="o">=</span> <span class="s">'.*'</span> |
| <a name="Topics.py-pyg.html-68"></a> <span class="k">elif</span> <span class="n">wild</span> <span class="o">==</span> <span class="s">'/#'</span><span class="p">:</span> |
| <a name="Topics.py-pyg.html-69"></a> <span class="s">"/# matches everything starting with a slash"</span> |
| <a name="Topics.py-pyg.html-70"></a> <span class="n">wild</span> <span class="o">=</span> <span class="s">'/.*'</span> |
| <a name="Topics.py-pyg.html-71"></a> <span class="k">else</span><span class="p">:</span> |
| <a name="Topics.py-pyg.html-72"></a> <span class="s">"all other instances subsume the preceding or following slash"</span> |
| <a name="Topics.py-pyg.html-73"></a> <span class="n">wild</span> <span class="o">=</span> <span class="n">wild</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s">'#/'</span><span class="p">,</span> <span class="s">'(.*?/|^)'</span><span class="p">)</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s">'/#'</span><span class="p">,</span> <span class="s">'(/.*?|$)'</span><span class="p">)</span> |
| <a name="Topics.py-pyg.html-74"></a> <span class="n">wild</span> <span class="o">=</span> <span class="n">wild</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s">'+'</span><span class="p">,</span> <span class="s">'[^/#]+?'</span><span class="p">)</span> <span class="c"># + does not match an empty level</span> |
| <a name="Topics.py-pyg.html-75"></a> <span class="k">if</span> <span class="n">re</span><span class="o">.</span><span class="n">compile</span><span class="p">(</span><span class="n">wild</span><span class="o">+</span><span class="s">'$'</span><span class="p">)</span><span class="o">.</span><span class="n">match</span><span class="p">(</span><span class="n">nonwild</span><span class="p">)</span> <span class="o">!=</span> <span class="bp">None</span><span class="p">:</span> |
| <a name="Topics.py-pyg.html-76"></a> <span class="n">rc</span> <span class="o">=</span> <span class="bp">True</span> |
| <a name="Topics.py-pyg.html-77"></a> <span class="k">return</span> <span class="n">rc</span> |
| <a name="Topics.py-pyg.html-78"></a> |
| <a name="Topics.py-pyg.html-79"></a> |
| <a name="Topics.py-pyg.html-80"></a><span class="sd">""" </span> |
| <a name="Topics.py-pyg.html-81"></a><span class="sd">topicCoverage = dataclasses("string", (1, 64),</span> |
| <a name="Topics.py-pyg.html-82"></a><span class="sd"> ["TopicA", "TopicA/B", "Topic/C", "TopicA/C", "/TopicA", "MQTTSAS topic"],</span> |
| <a name="Topics.py-pyg.html-83"></a><span class="sd"> static=True)</span> |
| <a name="Topics.py-pyg.html-84"></a><span class="sd">wildTopicCoverage = dataclasses("string", (1, 64),</span> |
| <a name="Topics.py-pyg.html-85"></a><span class="sd"> ["TopicA/+", "+/C", "#", "/#", "/+", "+/+"],</span> |
| <a name="Topics.py-pyg.html-86"></a><span class="sd"> static=True)</span> |
| <a name="Topics.py-pyg.html-87"></a><span class="sd">"""</span> |
| </pre></div> |
| |
| </pre> |
| |
| </body> |
| </html> |
