Class: Redcar::FilterCommand::Autocompletion

Inherits:
Object
  • Object
show all
Defined in:
lib/filter_command/autocompletion.rb

Overview

Command auto-completion manager

Class Method Summary collapse

Class Method Details

.suggest(text) ⇒ Hash

Provides command suggestions for text snippets based on previously run commands



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# File 'lib/filter_command/autocompletion.rb', line 11

def self.suggest text
  match, completion,selection = nil
  if text.length > 0
    FilterCommand::History.recent_commands.each do |map|
      if map['command'] == text
        match = map unless match
      elsif map['command'][0,text.length] == text
        completion = map unless completion
      end
    end
    if completion and not match
      if !@typed or @typed != text
        match  = completion
        selection = [text.length,match['command'].length]
      end
    end
    @typed = text
    if match
      {
        'command'     => match['command'],
        'input_type'  => match['input_type'],
        'output_type' => match['output_type'],
        'selection'   => selection
      }
    end
  else
    @typed_length = nil
  end
end