Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
whitequark recently gave an accurate answer about how to get a ruby AST : the answer is Ripper, included in standard Ruby library.
However, I played a little with Ripper, but I have not find a documentation about the content/structure of the AST itself.
So my question is : where can I find a concise documentation about Ripper sexp output ?
No explicit documentation on Ripper exists, as Ripper is just an interface to MRI’s yacc/bison parser. You can read the source, through; all the identifiers mentioned with
%type <node>may appear in Ripper’s sexps.The MRI sources aren’t an easy read, through, and I’d recommend determining the structure by trial and error: it may actually be faster that way.
You may be interested in this article, through, and also YARD uses some code based on Ripper. While that’s not exactly what you need (i.e. the docs), these links contain some useful clues.