Sha256: 03d9857cb0ef76985eb93e1ea328bf2047890d4a108e44fbfee1b41dbbf49c5c
Contents?: true
Size: 912 Bytes
Versions: 6
Compression:
Stored size: 912 Bytes
Contents
class Pascoale::Edits
LETTERS = [' '] + Pascoale::Constants::LETTERS.scan(/./)
def initialize(word)
@splits = (0..(word.size)).map do |i|
[word[0, i].to_s, word[(i)..-1]]
end
end
def deletions
@splits.map do |(a, b)|
a + b[1..-1] if b.size > 0
end.compact
end
def transpositions
@splits.map do |(a, b)|
a + b[1] + b[0] + b[2..-1] if b.size > 1
end.compact
end
def substitutions
LETTERS.product(@splits).map do |(letter, (a, b))|
(a + letter + b[1..-1]).strip if b.size > 0
end.compact
end
def insertions
LETTERS.product(@splits).map do |(letter, (a, b))|
(a + letter + b).strip
end
end
def editions
Set.new(deletions + transpositions + substitutions + insertions)
end
def editions2
editions.each_with_object(Set.new) do |it, result|
result.merge(self.class.new(it).editions)
end
end
end
Version data entries
6 entries across 6 versions & 1 rubygems