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Contents
module Redcar
class AutoCompleter
# the list of words plus their relative distance (beginning of the word to the cursor)
# this information can just be updated, as long as the cursor is moving through the document.
# as soon as typing happens, a word will have to be added or replaced.
class WordList
include Enumerable
attr_reader :words
def initialize
@words = Hash.new
end
# adds a new word, iff it doesn't yet exist.
# if the word exists, the distance will be adjusted, if it's lower.
def add_word(word, distance)
if @words.include?(word)
if distance < @words[word]
@words[word] = distance
end
else
@words[word] = distance
end
end
# yield the completions for the given prefix
def completions
filtered = @words.keys
return filtered.sort!{|a,b| @words[a] <=> @words[b] }
end
def each
@words.each {|word,distance| yield word, distance }
end
def merge!(other)
@words.merge!(other.words)
end
def inspect
"<WordList: " + @words.map {|k,v| "#{k}:#{v}"}.join(" ") + ">"
end
end
end
end
Version data entries
70 entries across 70 versions & 2 rubygems