Black Bytes » parsing

Static Analysis in Ruby

Jesus Castello — Sun, 02 Aug 2015 15:52:50 +0000

If you want to know something about your source code, like the name and line number of all your methods, what do you do? Your first idea might be to write a regexp for it, but what if I told you there is a better way? Static analysis is a technique you can use when […]

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How to build a parser with Ruby

Jesus Castello — Tue, 07 Apr 2015 19:44:40 +0000

Parsing is the art of making sense of a bunch of strings and converting them into something we can understand. You could just use regular expressions, but they are not always suitable for the job. For example, it is common knowledge that parsing HTML with regular expressions is probably not a good idea. In Ruby we […]

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Parsing HTML in Ruby

Jesus Castello — Sat, 14 Jan 2012 23:33:21 +0000

If you ever tried to write a scrapping tool you probably had to deal with parsing html. This task can be a bit difficult if you don’t have the right tools. Ruby has this wonderful library called Nokogiri, which makes html parsing a walk in the park. Let’s see some examples. First install the nokogiri […]

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