Class: Treat::Helpers::Help

Inherits:
Object
  • Object
show all
Defined in:
lib/treat/helpers/help.rb

Overview

Helper methods to detect misspellings and suggest alternatives to the user.

Class Method Summary collapse

Class Method Details

.did_you_mean?(list, name) ⇒ Boolean

Search the list to see if there are words similar to #name in the #list If yes, return a string saying “Did you mean … ?” with the names.

Returns:

  • (Boolean) 


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# File 'lib/treat/helpers/help.rb', line 9

def self.did_you_mean?(list, name)
  return '' # Fix
  list = list.map { |e| e.to_s }
  name = name.to_s
  sugg = []
  list.each do |element|
    l = self.levenshtein(element,name)
    if  l > 0 && l < 2
      sugg << element
    end
  end
  unless sugg.size == 0
    if sugg.size == 1
      msg += " Perhaps you meant '#{sugg[0]}' ?"
    else
      sugg_quote = sugg[0..-2].map do
        |x| '\'' + x + '\''
      end
      msg += " Perhaps you meant " +
      "#{sugg_quote.join(', ')}," +
      " or '#{sugg[-1]}' ?"
    end
  end
  msg
end