Module: Sexpr

Includes:
Node
Defined in:
lib/sexpr.rb,
lib/sexpr/node.rb,
lib/sexpr/errors.rb,
lib/sexpr/parser.rb,
lib/sexpr/grammar.rb,
lib/sexpr/matcher.rb,
lib/sexpr/version.rb,
lib/sexpr/matcher/many.rb,
lib/sexpr/matcher/rule.rb,
lib/sexpr/parser/citrus.rb,
lib/sexpr/grammar/options.rb,
lib/sexpr/grammar/parsing.rb,
lib/sexpr/grammar/tagging.rb,
lib/sexpr/grammar/matching.rb,
lib/sexpr/matcher/sequence.rb,
lib/sexpr/matcher/terminal.rb,
lib/sexpr/matcher/reference.rb,
lib/sexpr/matcher/alternative.rb

Overview

A helper to manipulate sexp grammars

Defined Under Namespace

Modules: Grammar, Matcher, Node, Parser, Version Classes: Error, InvalidParseSourceError, NoParserError, UnrecognizedParserError

Constant Summary collapse

PathLike = 
lambda{|x|
  x.respond_to?(:to_path) or (x.is_a?(String) and File.exists?(x))
}
VERSION = 
Version.to_s

Class Method Summary collapse

Methods included from Node

#sexpr_body, #sexpr_type

Class Method Details

.load(input) ⇒ Object 



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# File 'lib/sexpr.rb', line 13

def self.load(input)
  defn = case input
          when PathLike
            require 'yaml'
            path = input.respond_to?(:to_path) ? input.to_path : input.to_s
            YAML.load_file(path).merge(:path => input)
          when String
            require 'yaml'
            YAML.load(input)
          when Hash
            input
          else
            raise ArgumentError, "Invalid argument for Sexpr::Grammar: #{input}"
          end
  Grammar.new defn
end

.sexpr(arg) ⇒ Object 



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# File 'lib/sexpr.rb', line 30

def self.sexpr(arg)
  Object.new.extend(Sexpr::Grammar::Tagging).sexpr(arg)
end