title: How to show corpus text in R tm package?
body: <p>I'm completely new in R and tm package, so please excuse my stupid question ;-)
  How can I show the text of a plain text corpus in R tm package?</p>
  
  <p>I've loaded a corpus with 323 plain text files in a corpus:</p>
  
  <pre><code> src &lt;- DirSource("Korpora/technologie")
  corpus &lt;- Corpus(src)
  </code></pre>
  
  <p>But when I call the corpus with:</p>
  
  <pre><code>corpus[[1]]
  </code></pre>
  
  <p>I always get some output like this instead of the corpus text itself:</p>
  
  <pre><code>&lt;&lt;PlainTextDocument&gt;&gt;
  Metadata:  7
  Content:  chars: 144
  Content:  chars: 141
  Content:  chars: 224
  Content:  chars: 75
  Content:  chars: 105
  </code></pre>
  
  <p>How can I show the text of the corpus?</p>
  
  <p>Thanks!</p>
  
  <p><strong>UPDATE</strong>
  Reproducible sample: I've tried it with the built-in sample text:</p>
  
  <pre><code>&gt; data("crude")
  &gt; crude
  &lt;&lt;VCorpus&gt;&gt;
  Metadata:  corpus specific: 0, document level (indexed): 0
  Content:  documents: 20
  &gt; crude[1]
  &lt;&lt;VCorpus&gt;&gt;
  Metadata:  corpus specific: 0, document level (indexed): 0
  Content:  documents: 1
  &gt; crude[[1]]
  &lt;&lt;PlainTextDocument&gt;&gt;
  Metadata:  15
  Content:  chars: 527
  </code></pre>
  
  <p>How can I print the text of the documents?</p>
  
  <p>UPDATE 2: Session Info:</p>
  
  <pre><code>&gt; sessionInfo()
  R version 3.1.3 (2015-03-09)
  Platform: x86_64-w64-mingw32/x64 (64-bit)
  Running under: Windows 7 x64 (build 7601) Service Pack 1
  
  locale:
  [1] LC_COLLATE=German_Germany.1252  LC_CTYPE=German_Germany.1252   
  [3] LC_MONETARY=German_Germany.1252 LC_NUMERIC=C                   
  [5] LC_TIME=German_Germany.1252    
  
  attached base packages:
  [1] stats     graphics  grDevices utils     datasets  methods   base     
  
  other attached packages:
  [1] tm_0.6-1  NLP_0.1-7
  
  loaded via a namespace (and not attached):
  [1] parallel_3.1.3 slam_0.1-32    tools_3.1.3   
  </code></pre>