title: C library to parse approximate dates
body: <p>I'm looking for a plain C counterpart for <a href="http://www.datejs.com/">date.js</a> <a href="http://code.google.com/p/datejs/wiki/APIDocumentation#parse"><code>date.parse()</code></a>.</p>
  
  <p>That is, something that understands "week ago" or "yesterday" as input. English-only is OK.</p>
  
  <p><em>Note: a library should not be licensed under GPL, so Git's <code>date.c</code> or parser for GNU <code>date -d</code> wouldn't do. BTW, if you wonder why wouldn't I just sit down and code this, go and look at the source of mentioned libraries...</em></p>