Module: Spectre::DynVarMixin

Included in:
Grammar
Defined in:
lib/spectre/base/grammar.rb

Overview

Provides the functionality of dynamically defining rules inside Grammars. Must be mixed into a Parser.

Instance Method Summary collapse

Instance Method Details

#close(node) ⇒ Object

Closes over the specified node with a newly constructed Closure.



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# File 'lib/spectre/base/grammar.rb', line 62

def close node
    node = node.to_p
    node.closure = Closure.new
    node
end

#rule(hash) ⇒ Object

Stores the Parsers referenced by symbol => parser from the hash so they can be used later on.



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# File 'lib/spectre/base/grammar.rb', line 72

def rule hash
    hash.each do |getter,node|
        @node.symbols[getter] = node.to_p
    end
end

#start_with(parser) ⇒ Object

Sets the parser with which the Grammar should start parsing. Does auto-conversion on parser.



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# File 'lib/spectre/base/grammar.rb', line 82

def start_with parser
    @start_rule = parser.to_p
end