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<h1>Coverage for <b>cogapp/whiteutils.py</b> :
<span class="pc_cov">88.61%</span>
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45 statements
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<p id="t1" class="pln"><span class="n"><a href="#t1">1</a></span><span class="t"><span class="str">""" Indentation utilities for Cog.</span> </span><span class="r"></span></p>
<p id="t2" class="pln"><span class="n"><a href="#t2">2</a></span><span class="t"><span class="str"> http://nedbatchelder.com/code/cog</span> </span><span class="r"></span></p>
<p id="t3" class="pln"><span class="n"><a href="#t3">3</a></span><span class="t"> </span><span class="r"></span></p>
<p id="t4" class="pln"><span class="n"><a href="#t4">4</a></span><span class="t"><span class="str"> Copyright 2004-2019, Ned Batchelder.</span> </span><span class="r"></span></p>
<p id="t5" class="pln"><span class="n"><a href="#t5">5</a></span><span class="t"><span class="str">"""</span> </span><span class="r"></span></p>
<p id="t6" class="pln"><span class="n"><a href="#t6">6</a></span><span class="t"> </span><span class="r"></span></p>
<p id="t7" class="run"><span class="n"><a href="#t7">7</a></span><span class="t"><span class="key">from</span> <span class="nam">__future__</span> <span class="key">import</span> <span class="nam">absolute_import</span> </span><span class="r"></span></p>
<p id="t8" class="pln"><span class="n"><a href="#t8">8</a></span><span class="t"> </span><span class="r"></span></p>
<p id="t9" class="run"><span class="n"><a href="#t9">9</a></span><span class="t"><span class="key">import</span> <span class="nam">re</span> </span><span class="r"></span></p>
<p id="t10" class="pln"><span class="n"><a href="#t10">10</a></span><span class="t"> </span><span class="r"></span></p>
<p id="t11" class="run"><span class="n"><a href="#t11">11</a></span><span class="t"><span class="key">from</span> <span class="op">.</span><span class="nam">backward</span> <span class="key">import</span> <span class="nam">string_types</span><span class="op">,</span> <span class="nam">bytes_types</span><span class="op">,</span> <span class="nam">to_bytes</span> </span><span class="r"></span></p>
<p id="t12" class="pln"><span class="n"><a href="#t12">12</a></span><span class="t"> </span><span class="r"></span></p>
<p id="t13" class="run"><span class="n"><a href="#t13">13</a></span><span class="t"><span class="key">def</span> <span class="nam">whitePrefix</span><span class="op">(</span><span class="nam">strings</span><span class="op">)</span><span class="op">:</span> </span><span class="r"></span></p>
<p id="t14" class="pln"><span class="n"><a href="#t14">14</a></span><span class="t"> <span class="str">""" Determine the whitespace prefix common to all non-blank lines</span> </span><span class="r"></span></p>
<p id="t15" class="pln"><span class="n"><a href="#t15">15</a></span><span class="t"><span class="str"> in the argument list.</span> </span><span class="r"></span></p>
<p id="t16" class="pln"><span class="n"><a href="#t16">16</a></span><span class="t"><span class="str"> """</span> </span><span class="r"></span></p>
<p id="t17" class="pln"><span class="n"><a href="#t17">17</a></span><span class="t"> <span class="com"># Remove all blank lines from the list</span> </span><span class="r"></span></p>
<p id="t18" class="run"><span class="n"><a href="#t18">18</a></span><span class="t"> <span class="nam">strings</span> <span class="op">=</span> <span class="op">[</span><span class="nam">s</span> <span class="key">for</span> <span class="nam">s</span> <span class="key">in</span> <span class="nam">strings</span> <span class="key">if</span> <span class="nam">s</span><span class="op">.</span><span class="nam">strip</span><span class="op">(</span><span class="op">)</span> <span class="op">!=</span> <span class="str">''</span><span class="op">]</span> </span><span class="r"></span></p>
<p id="t19" class="pln"><span class="n"><a href="#t19">19</a></span><span class="t"> </span><span class="r"></span></p>
<p id="t20" class="run"><span class="n"><a href="#t20">20</a></span><span class="t"> <span class="key">if</span> <span class="key">not</span> <span class="nam">strings</span><span class="op">:</span> <span class="key">return</span> <span class="str">''</span> </span><span class="r"></span></p>
<p id="t21" class="pln"><span class="n"><a href="#t21">21</a></span><span class="t"> </span><span class="r"></span></p>
<p id="t22" class="pln"><span class="n"><a href="#t22">22</a></span><span class="t"> <span class="com"># Find initial whitespace chunk in the first line.</span> </span><span class="r"></span></p>
<p id="t23" class="pln"><span class="n"><a href="#t23">23</a></span><span class="t"> <span class="com"># This is the best prefix we can hope for.</span> </span><span class="r"></span></p>
<p id="t24" class="run"><span class="n"><a href="#t24">24</a></span><span class="t"> <span class="nam">pat</span> <span class="op">=</span> <span class="str">r'\s*'</span> </span><span class="r"></span></p>
<p id="t25" class="par run show_par"><span class="n"><a href="#t25">25</a></span><span class="t"> <span class="key">if</span> <span class="nam">isinstance</span><span class="op">(</span><span class="nam">strings</span><span class="op">[</span><span class="num">0</span><span class="op">]</span><span class="op">,</span> <span class="nam">bytes_types</span><span class="op">)</span><span class="op">:</span> </span><span class="r"><span class="annotate short">25 ↛ 26</span><span class="annotate long">line 25 didn't jump to line 26, because the condition on line 25 was never true</span></span></p>
<p id="t26" class="mis show_mis"><span class="n"><a href="#t26">26</a></span><span class="t"> <span class="nam">pat</span> <span class="op">=</span> <span class="nam">to_bytes</span><span class="op">(</span><span class="nam">pat</span><span class="op">)</span> </span><span class="r"></span></p>
<p id="t27" class="run"><span class="n"><a href="#t27">27</a></span><span class="t"> <span class="nam">prefix</span> <span class="op">=</span> <span class="nam">re</span><span class="op">.</span><span class="nam">match</span><span class="op">(</span><span class="nam">pat</span><span class="op">,</span> <span class="nam">strings</span><span class="op">[</span><span class="num">0</span><span class="op">]</span><span class="op">)</span><span class="op">.</span><span class="nam">group</span><span class="op">(</span><span class="num">0</span><span class="op">)</span> </span><span class="r"></span></p>
<p id="t28" class="pln"><span class="n"><a href="#t28">28</a></span><span class="t"> </span><span class="r"></span></p>
<p id="t29" class="pln"><span class="n"><a href="#t29">29</a></span><span class="t"> <span class="com"># Loop over the other strings, keeping only as much of</span> </span><span class="r"></span></p>
<p id="t30" class="pln"><span class="n"><a href="#t30">30</a></span><span class="t"> <span class="com"># the prefix as matches each string.</span> </span><span class="r"></span></p>
<p id="t31" class="run"><span class="n"><a href="#t31">31</a></span><span class="t"> <span class="key">for</span> <span class="nam">s</span> <span class="key">in</span> <span class="nam">strings</span><span class="op">:</span> </span><span class="r"></span></p>
<p id="t32" class="run"><span class="n"><a href="#t32">32</a></span><span class="t"> <span class="key">for</span> <span class="nam">i</span> <span class="key">in</span> <span class="nam">range</span><span class="op">(</span><span class="nam">len</span><span class="op">(</span><span class="nam">prefix</span><span class="op">)</span><span class="op">)</span><span class="op">:</span> </span><span class="r"></span></p>
<p id="t33" class="par run show_par"><span class="n"><a href="#t33">33</a></span><span class="t"> <span class="key">if</span> <span class="nam">prefix</span><span class="op">[</span><span class="nam">i</span><span class="op">]</span> <span class="op">!=</span> <span class="nam">s</span><span class="op">[</span><span class="nam">i</span><span class="op">]</span><span class="op">:</span> </span><span class="r"><span class="annotate short">33 ↛ 34</span><span class="annotate long">line 33 didn't jump to line 34, because the condition on line 33 was never true</span></span></p>
<p id="t34" class="mis show_mis"><span class="n"><a href="#t34">34</a></span><span class="t"> <span class="nam">prefix</span> <span class="op">=</span> <span class="nam">prefix</span><span class="op">[</span><span class="op">:</span><span class="nam">i</span><span class="op">]</span> </span><span class="r"></span></p>
<p id="t35" class="mis show_mis"><span class="n"><a href="#t35">35</a></span><span class="t"> <span class="key">break</span> </span><span class="r"></span></p>
<p id="t36" class="run"><span class="n"><a href="#t36">36</a></span><span class="t"> <span class="key">return</span> <span class="nam">prefix</span> </span><span class="r"></span></p>
<p id="t37" class="pln"><span class="n"><a href="#t37">37</a></span><span class="t"> </span><span class="r"></span></p>
<p id="t38" class="run"><span class="n"><a href="#t38">38</a></span><span class="t"><span class="key">def</span> <span class="nam">reindentBlock</span><span class="op">(</span><span class="nam">lines</span><span class="op">,</span> <span class="nam">newIndent</span><span class="op">=</span><span class="str">''</span><span class="op">)</span><span class="op">:</span> </span><span class="r"></span></p>
<p id="t39" class="pln"><span class="n"><a href="#t39">39</a></span><span class="t"> <span class="str">""" Take a block of text as a string or list of lines.</span> </span><span class="r"></span></p>
<p id="t40" class="pln"><span class="n"><a href="#t40">40</a></span><span class="t"><span class="str"> Remove any common whitespace indentation.</span> </span><span class="r"></span></p>
<p id="t41" class="pln"><span class="n"><a href="#t41">41</a></span><span class="t"><span class="str"> Re-indent using newIndent, and return it as a single string.</span> </span><span class="r"></span></p>
<p id="t42" class="pln"><span class="n"><a href="#t42">42</a></span><span class="t"><span class="str"> """</span> </span><span class="r"></span></p>
<p id="t43" class="run"><span class="n"><a href="#t43">43</a></span><span class="t"> <span class="nam">sep</span><span class="op">,</span> <span class="nam">nothing</span> <span class="op">=</span> <span class="str">'\n'</span><span class="op">,</span> <span class="str">''</span> </span><span class="r"></span></p>
<p id="t44" class="par run show_par"><span class="n"><a href="#t44">44</a></span><span class="t"> <span class="key">if</span> <span class="nam">isinstance</span><span class="op">(</span><span class="nam">lines</span><span class="op">,</span> <span class="nam">bytes_types</span><span class="op">)</span><span class="op">:</span> </span><span class="r"><span class="annotate short">44 ↛ 45</span><span class="annotate long">line 44 didn't jump to line 45, because the condition on line 44 was never true</span></span></p>
<p id="t45" class="mis show_mis"><span class="n"><a href="#t45">45</a></span><span class="t"> <span class="nam">sep</span><span class="op">,</span> <span class="nam">nothing</span> <span class="op">=</span> <span class="str">b'\n'</span><span class="op">,</span> <span class="str">b''</span> </span><span class="r"></span></p>
<p id="t46" class="run"><span class="n"><a href="#t46">46</a></span><span class="t"> <span class="key">if</span> <span class="nam">isinstance</span><span class="op">(</span><span class="nam">lines</span><span class="op">,</span> <span class="nam">string_types</span><span class="op">)</span><span class="op">:</span> </span><span class="r"></span></p>
<p id="t47" class="run"><span class="n"><a href="#t47">47</a></span><span class="t"> <span class="nam">lines</span> <span class="op">=</span> <span class="nam">lines</span><span class="op">.</span><span class="nam">split</span><span class="op">(</span><span class="nam">sep</span><span class="op">)</span> </span><span class="r"></span></p>
<p id="t48" class="run"><span class="n"><a href="#t48">48</a></span><span class="t"> <span class="nam">oldIndent</span> <span class="op">=</span> <span class="nam">whitePrefix</span><span class="op">(</span><span class="nam">lines</span><span class="op">)</span> </span><span class="r"></span></p>
<p id="t49" class="run"><span class="n"><a href="#t49">49</a></span><span class="t"> <span class="nam">outLines</span> <span class="op">=</span> <span class="op">[</span><span class="op">]</span> </span><span class="r"></span></p>
<p id="t50" class="run"><span class="n"><a href="#t50">50</a></span><span class="t"> <span class="key">for</span> <span class="nam">l</span> <span class="key">in</span> <span class="nam">lines</span><span class="op">:</span> </span><span class="r"></span></p>
<p id="t51" class="run"><span class="n"><a href="#t51">51</a></span><span class="t"> <span class="key">if</span> <span class="nam">oldIndent</span><span class="op">:</span> </span><span class="r"></span></p>
<p id="t52" class="run"><span class="n"><a href="#t52">52</a></span><span class="t"> <span class="nam">l</span> <span class="op">=</span> <span class="nam">l</span><span class="op">.</span><span class="nam">replace</span><span class="op">(</span><span class="nam">oldIndent</span><span class="op">,</span> <span class="nam">nothing</span><span class="op">,</span> <span class="num">1</span><span class="op">)</span> </span><span class="r"></span></p>
<p id="t53" class="run"><span class="n"><a href="#t53">53</a></span><span class="t"> <span class="key">if</span> <span class="nam">l</span> <span class="key">and</span> <span class="nam">newIndent</span><span class="op">:</span> </span><span class="r"></span></p>
<p id="t54" class="run"><span class="n"><a href="#t54">54</a></span><span class="t"> <span class="nam">l</span> <span class="op">=</span> <span class="nam">newIndent</span> <span class="op">+</span> <span class="nam">l</span> </span><span class="r"></span></p>
<p id="t55" class="run"><span class="n"><a href="#t55">55</a></span><span class="t"> <span class="nam">outLines</span><span class="op">.</span><span class="nam">append</span><span class="op">(</span><span class="nam">l</span><span class="op">)</span> </span><span class="r"></span></p>
<p id="t56" class="run"><span class="n"><a href="#t56">56</a></span><span class="t"> <span class="key">return</span> <span class="nam">sep</span><span class="op">.</span><span class="nam">join</span><span class="op">(</span><span class="nam">outLines</span><span class="op">)</span> </span><span class="r"></span></p>
<p id="t57" class="pln"><span class="n"><a href="#t57">57</a></span><span class="t"> </span><span class="r"></span></p>
<p id="t58" class="run"><span class="n"><a href="#t58">58</a></span><span class="t"><span class="key">def</span> <span class="nam">commonPrefix</span><span class="op">(</span><span class="nam">strings</span><span class="op">)</span><span class="op">:</span> </span><span class="r"></span></p>
<p id="t59" class="pln"><span class="n"><a href="#t59">59</a></span><span class="t"> <span class="str">""" Find the longest string that is a prefix of all the strings.</span> </span><span class="r"></span></p>
<p id="t60" class="pln"><span class="n"><a href="#t60">60</a></span><span class="t"><span class="str"> """</span> </span><span class="r"></span></p>
<p id="t61" class="par run show_par"><span class="n"><a href="#t61">61</a></span><span class="t"> <span class="key">if</span> <span class="key">not</span> <span class="nam">strings</span><span class="op">:</span> </span><span class="r"><span class="annotate short">61 ↛ 62</span><span class="annotate long">line 61 didn't jump to line 62, because the condition on line 61 was never true</span></span></p>
<p id="t62" class="mis show_mis"><span class="n"><a href="#t62">62</a></span><span class="t"> <span class="key">return</span> <span class="str">''</span> </span><span class="r"></span></p>
<p id="t63" class="run"><span class="n"><a href="#t63">63</a></span><span class="t"> <span class="nam">prefix</span> <span class="op">=</span> <span class="nam">strings</span><span class="op">[</span><span class="num">0</span><span class="op">]</span> </span><span class="r"></span></p>
<p id="t64" class="run"><span class="n"><a href="#t64">64</a></span><span class="t"> <span class="key">for</span> <span class="nam">s</span> <span class="key">in</span> <span class="nam">strings</span><span class="op">:</span> </span><span class="r"></span></p>
<p id="t65" class="run"><span class="n"><a href="#t65">65</a></span><span class="t"> <span class="key">if</span> <span class="nam">len</span><span class="op">(</span><span class="nam">s</span><span class="op">)</span> <span class="op"><</span> <span class="nam">len</span><span class="op">(</span><span class="nam">prefix</span><span class="op">)</span><span class="op">:</span> </span><span class="r"></span></p>
<p id="t66" class="run"><span class="n"><a href="#t66">66</a></span><span class="t"> <span class="nam">prefix</span> <span class="op">=</span> <span class="nam">prefix</span><span class="op">[</span><span class="op">:</span><span class="nam">len</span><span class="op">(</span><span class="nam">s</span><span class="op">)</span><span class="op">]</span> </span><span class="r"></span></p>
<p id="t67" class="run"><span class="n"><a href="#t67">67</a></span><span class="t"> <span class="key">if</span> <span class="key">not</span> <span class="nam">prefix</span><span class="op">:</span> </span><span class="r"></span></p>
<p id="t68" class="run"><span class="n"><a href="#t68">68</a></span><span class="t"> <span class="key">return</span> <span class="str">''</span> </span><span class="r"></span></p>
<p id="t69" class="run"><span class="n"><a href="#t69">69</a></span><span class="t"> <span class="key">for</span> <span class="nam">i</span> <span class="key">in</span> <span class="nam">range</span><span class="op">(</span><span class="nam">len</span><span class="op">(</span><span class="nam">prefix</span><span class="op">)</span><span class="op">)</span><span class="op">:</span> </span><span class="r"></span></p>
<p id="t70" class="run"><span class="n"><a href="#t70">70</a></span><span class="t"> <span class="key">if</span> <span class="nam">prefix</span><span class="op">[</span><span class="nam">i</span><span class="op">]</span> <span class="op">!=</span> <span class="nam">s</span><span class="op">[</span><span class="nam">i</span><span class="op">]</span><span class="op">:</span> </span><span class="r"></span></p>
<p id="t71" class="run"><span class="n"><a href="#t71">71</a></span><span class="t"> <span class="nam">prefix</span> <span class="op">=</span> <span class="nam">prefix</span><span class="op">[</span><span class="op">:</span><span class="nam">i</span><span class="op">]</span> </span><span class="r"></span></p>
<p id="t72" class="run"><span class="n"><a href="#t72">72</a></span><span class="t"> <span class="key">break</span> </span><span class="r"></span></p>
<p id="t73" class="run"><span class="n"><a href="#t73">73</a></span><span class="t"> <span class="key">return</span> <span class="nam">prefix</span> </span><span class="r"></span></p>
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