Sexp for Rubyists

Ruby Best Practices - Sexp for Rubyists.

Interesting:

Let me show you an example. First, gem install ruby_parser. Then:

::: {.dp-highlighter} require 'ruby_parser'
require 'pp'

pp RubyParser.new.parse(\<\<-EOF)
def plus_five(n)
n + 5
end
EOF :::

require 'ruby_parser'
require 'pp'

pp RubyParser.new.parse(<<-EOF)
def plus_five(n)
  n + 5
end
EOF

Interesting:

s(:defn,
 :plus_five,
 s(:args, :n),
 s(:scope,
   s(:block,
     s(:call, s(:lvar, :n), :+, s(:arglist, s(:lit, 5))))))

require 'ruby_parser'
require 'pp'

pp RubyParser.new.parse(<<-EOF)
def plus_five(n)
  n + 5
end
EOF