class ERLE::Atom
Constants
- INNER_PATTERN
pattern /^[a-z]*/ # TODO: Handle uppercase
Protected Class Methods
parse(parser)
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An atom is a literal, a constant with name. An atom is to be enclosed in single quotes (') if it does not begin with a lower-case letter or if it contains other characters than alphanumeric characters, underscore (_), or @.
# File lib/erle/elements/atom.rb, line 27 def self.parse(parser) if (parser.scan(open)) parser.scan(@enclosed_pattern) result = parser.matched parser.scan(close) elsif parser.scan(@unopened_pattern) result = parser.matched.to_sym else parser.raise_unexpected_token end new(result) end
Public Instance Methods
to_ruby()
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# File lib/erle/elements/atom.rb, line 16 def to_ruby @output ||= @input end