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Contents
module CloudSesame
module Query
module Node
class Fuzziness
EXCLUDING_TERMS = /(^\-|\*$)/.freeze
def initialize(&block)
# default fuzziness
@max_fuzziness = 3
@min_char_size = 6
@fuzzy_percent = 0.17
instance_eval(&block) if block_given?
end
def max_fuzziness(int)
@max_fuzziness = int.to_i
end
def min_char_size(int)
@min_char_size = int.to_i
end
def fuzzy_percent(float)
@fuzzy_percent = float.to_f
end
def compile(string)
(compiled = each_word_in(string) { |word| fuzziness(word) }).compact!
"(#{ compiled.join('+') })"
end
private
def each_word_in(string, &block)
string.split(' ').map!(&block)
end
def fuzziness(word)
if (length = word.length) >= @min_char_size && !excluding_term?(word)
fuzziness = (length * @fuzzy_percent).round
fuzziness = [fuzziness, @max_fuzziness].min
"#{ word }~#{ fuzziness }"
else
word
end
end
def excluding_term?(word)
!!(EXCLUDING_TERMS =~ word)
end
end
end
end
end
Version data entries
18 entries across 18 versions & 1 rubygems