Add 'stats' command

Very, very rudimentary frequency analysis of the resume text.

README.md

@@ -44,6 +44,7 @@ at the [blog post for the project][blog].
       list         Lists commands
       pdf          Generate a PDF from a markdown file
       selfupdate   Updates md2resume.phar to the latest version.
+      stats        Generate a word frequency analysis of your resume
       templates    List available templates
       version      Show current version information
     

src/Resume/Cli/Resume.php

@@ -38,6 +38,7 @@ class Resume extends Application
         $this->add(new Command\HtmlCommand());
         $this->add(new Command\PdfCommand());
         $this->add(new Command\SelfUpdateCommand());
+        $this->add(new Command\StatsCommand());
         $this->add(new Command\TemplatesCommand());
         $this->add(new Command\VersionCommand());
 

src/Resume/Command/StatsCommand.php

@@ -0,0 +1,97 @@
+<?php
+namespace Resume\Command;
+
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+
+class StatsCommand extends Command
+{
+    protected function configure()
+    {
+        $this
+            ->setName('stats')
+            ->setDescription('Generate a word frequency analysis of your resume')
+            ->addArgument(
+                'source',
+                InputArgument::REQUIRED,
+                'Source markdown document'
+            );
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output)
+    {
+        $this->app    = $this->getApplication();
+        $source       = $input->getArgument('source');
+
+        $text = file_get_contents($source);
+        $text = $this->stripCommon($text);
+        $analysis = array(
+            'single' => $this->buildStats($text, 1),
+            'double' => $this->buildStats($text, 2),
+            'triple' => $this->buildStats($text, 3),
+        );
+
+        $template = $this->app->twig->loadTemplate('frequency.twig');
+        $view = $template->render($analysis);
+        $output->write($view, true, $this->app->outputFormat);
+
+        return true;
+    }
+
+    private function stripCommon($content)
+    {
+        $content = preg_replace("/(,|\"|\.|\?|:|!|;|#|-|>|{|\*| - )/", " ", $content);
+        $content = preg_replace("/\n/", " ", $content);
+        $content = preg_replace("/\s\s+/", " ", $content);
+        $content = explode(" ", $content);
+
+        return $content;
+    }
+
+    // source: https://github.com/benbalter/Frequency-Analysis/blob/master/frequency-analysis.php
+    private function buildStats($input, $num)
+    {
+        $results = array();
+
+        foreach ($input as $key => $word) {
+            $phrase = '';
+
+            //look for every n-word pattern and tally counts in array
+            for ($i=0; $i < $num; $i++) {
+                if ($i != 0) {
+                    $phrase .= ' ';
+                }
+                if (!empty($input[$key+$i])) {
+                    $phrase .= strtolower($input[$key+$i]);
+                }
+            }
+            if (!isset( $results[$phrase])) {
+                $results[$phrase] = 1;
+            } else {
+                $results[$phrase]++;
+            }
+        }
+        if ($num == 1) {
+            //clean boring words
+            $a = explode(
+                " ",
+                "the of and to a in that it is was i for on you he be with as by " .
+                "at have are this not but had his they from she which or we an there " .
+                "her were one do been all their has would will what if can when so my"
+            );
+            foreach ($a as $banned) {
+                unset($results[$banned]);
+            }
+        }
+
+        //sort, clean, return
+        array_multisort($results, SORT_DESC);
+        unset($results[""]);
+
+        return $results;
+    }
+}
+
+/* End of file StatsCommand.php */

src/Resume/Templates/frequency.twig

@@ -0,0 +1,24 @@
+————————————————————————————————————————————————————————————————————————————————
+<heading> Word Frequency Analysis                                                            </heading>
+————————————————————————————————————————————————————————————————————————————————
+
+<comment>Triple Word Phrases:</comment>
+{% for phrase, frequency in triple %}
+{% if frequency > 1%}
+{{frequency|style("info")|pad(3, "right")}} {{phrase}}
+{% endif  %}
+{% endfor %}
+
+<comment>Double Word Phrases:</comment>
+{% for phrase, frequency in double %}
+{% if frequency > 1%}
+{{frequency|style("info")|pad(3, "right")}} {{phrase}}
+{% endif  %}
+{% endfor %}
+
+<comment>Single Words:</comment>
+{% for phrase, frequency in single %}
+{% if frequency > 1%}
+{{frequency|style("info")|pad(3, "right")}} {{phrase}}
+{% endif  %}
+{% endfor %}