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Contents
module Hieracles
module Puppetdb
class Query
attr_reader :elements
def initialize(elements)
@elements = parse(elements)
end
def parse(elements)
if number_or(elements) > 0
elements = build_or(elements)
end
build_and elements
end
def build_and(arrays)
back = arrays.reduce([]) do |a, v|
if v.class.name == 'Array'
if v.length > 1
a << ['and'] + v.map { |e| expression(e) }
else
e = expression(v[0])
a << e if e
end
elsif v == 'or'
a << 'or'
else
e = expression(v)
a << e if e
end
a
end
if back.length == 1 and back[0].class.name == 'Array'
back = back[0]
elsif back[0].class.name == 'Array' and back.length > 1
back.unshift('and')
end
back
end
def build_or(arrays)
back = ['or']
(0..number_or(arrays)-1).each do |a|
back << arrays.slice!(0..arrays.index('or')-1)
arrays.shift
end
back << arrays
end
def expression(e)
if /([^!]*)(!)?(>|<|=|~)(.*)/.match e
if $2
['not', [$3, $1, $4]]
else
[$3, $1, $4]
end
end
end
def number_or(a)
a.select { |i| i == 'or' }.length
end
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems