I am interested in parsing Wiki markup language that has a few tags, like &lt;pre&gt;...&lt;/pre&gt;, &lt;math&gt;...,&lt;/math&gt;. <br>These tags are sparse, meaning that the ratio of number of tags / number of bytes is low. 
<br>I would like, given a string (or a stream) with such tags, to parse it as fast as possible.&nbsp; Efficiency is a primary consideration, and so is simplicity of the implementation. <br>Do you have any advice about the library I should be using? 
<br>Thanks, <br><br>Luca<br><br>