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Sameer Borate's Blog: Source Code Signatures in PHP

Note: This article was originally published at PHPDeveloper on 11 November 2011.
PHPDeveloper

In this new post to his blog Sameer Borate applies an interesting method of discovery of structure in unfamiliar code - generating code signatures.

One method [Ward Cunningham] suggests is that of summarizing on a single line select punctuation characters from each source file. He calls this the file's "signature". This will help the developer gauge the complexity of the code base.

He includes a few examples from files in WordPress - looking for the structure of curly braces and semicolons as delimiters for chunks of functionality. Included are a few lines of code to help you generate a signature from any file and an example of a result. It's an interesting idea, but I'm not sure how practical it is. It could be a helpful reference for how complicated the file is, though.