Module: Fugit::Nat

Defined in:
lib/fugit/nat.rb

Overview

A natural language set of parsers for fugit. Focuses on cron expressions. The rest is better left to Chronic and friends.

Defined Under Namespace

Modules: Parser

Class Method Summary collapse

Class Method Details

.do_parse(s, opts = {}) ⇒ Object 



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# File 'lib/fugit/nat.rb', line 30

def do_parse(s, opts={})

  parse(s, opts) ||
  fail(ArgumentError.new("could not parse a nat #{s.inspect}"))
end

.parse(s, opts = {}) ⇒ Object 



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# File 'lib/fugit/nat.rb', line 11

def parse(s, opts={})

  return s if s.is_a?(Fugit::Cron) || s.is_a?(Fugit::Duration)

  return nil unless s.is_a?(String)

#p s; Raabro.pp(Parser.parse(s, debug: 3), colours: true)
  a = Parser.parse(s)

  return nil unless a

  return parse_crons(s, a, opts) \
    if a.include?([ :flag, 'every' ])
  return parse_crons(s, a, opts) \
    if a.include?([ :flag, 'from' ]) && a.find { |e| e[0] == :day_range }

  nil
end