Module: Chess::UTF8Notation

Defined in:
lib/chess/utf8_notation.rb

Overview

Note:

To use this utility explicit require is needed: require 'chess/utf8_notation'

With this module is possible call the method #to_utf8 on a string. This method convert the chess piece identifier character into UTF8 chess character.

Examples:

:001 > require 'chess/utf8_notation'
=> true
:002 > 'Qf7#'.to_utf8
=> '♕f7#'

Constant Summary collapse

UTF8_MAP =

Map a piece identifier character with the corresponding UTF8 chess character

{
  'P' => '♙',
  'R' => '♖',
  'N' => '♘',
  'B' => '♗',
  'Q' => '♕',
  'K' => '♔',
  'p' => '♟',
  'r' => '♜',
  'n' => '♞',
  'b' => '♝',
  'q' => '♛',
  'k' => '♚'
}.freeze

Instance Method Summary collapse

Instance Method Details

#to_utf8 ⇒ String

Replace the piece identifier characters with UTF8 chess characters.

Returns:

  • (String) 


33
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# File 'lib/chess/utf8_notation.rb', line 33

def to_utf8
  self.gsub(/[PRNBQKprnbqk]/, UTF8_MAP)
end