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Versions: 19
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Stored size: 902 Bytes
Contents
module Dentaku
module TokenMatchers
def self.token_matchers(*symbols)
symbols.map { |s| matcher(s) }
end
def self.function_token_matchers(function_name, *symbols)
token_matchers(:open, *symbols, :close).unshift(
TokenMatcher.send(function_name)
)
end
def self.matcher(symbol)
@matchers ||= [
:datetime, :numeric, :string, :addsub, :subtract, :muldiv, :pow, :mod,
:comparator, :comp_gt, :comp_lt, :open, :close, :comma,
:non_close_plus, :non_group, :non_group_star, :arguments,
:logical, :combinator, :if, :round, :roundup, :rounddown, :not,
:anchored_minus, :math_neg_pow, :math_neg_mul
].each_with_object({}) do |name, matchers|
matchers[name] = TokenMatcher.send(name)
end
@matchers.fetch(symbol) do
raise "Unknown token symbol #{ symbol }"
end
end
end
end
Version data entries
19 entries across 19 versions & 2 rubygems