SXP.rb: S-Expressions for Ruby

This is a Ruby implementation of a universal S-expression parser.

Features

Examples

require 'sxp'

Parsing basic S-expressions

SXP.read "(* 6 7)"  #=> [:*, 6, 7]

SXP.read <<-EOF
  (define (fact n)
    (if (= n 0)
        1
        (* n (fact (- n 1)))))
EOF

#=> [:define, [:fact, :n],
      [:if, [:"=", :n, 0],
            1,
            [:*, :n, [:fact, [:-, :n, 1]]]]]

Parsing Scheme S-expressions

SXP::Reader::Scheme.read %q((and #t #f))             #=> [:and, true, false]

Parsing Common Lisp S-expressions

SXP::Reader::CommonLisp.read %q((or t nil))          #=> [:or, true, nil]

Parsing SPARQL S-expressions

SXP::Reader::SPARQL.read %q((base <http://ar.to/>))  #=> [:base, RDF::URI('http://ar.to/')]

Documentation

Dependencies

Installation

The recommended installation method is via RubyGems. To install the latest official release of the SXP.rb gem, do:

% [sudo] gem install sxp

Download

To get a local working copy of the development repository, do:

% git clone git://github.com/bendiken/sxp-ruby.git

Alternatively, you can download the latest development version as a tarball as follows:

% wget http://github.com/bendiken/sxp-ruby/tarball/master

Resources

Author

Contributors

License

SXP.rb is free and unencumbered public domain software. For more information, see http://unlicense.org/ or the accompanying UNLICENSE file.