Module: WithoutAccents

Included in:: String

Defined in:: lib/core-extensions/string_without_accents.rb

Overview

This module adds 2 methods to the string class. Up-to-date version and documentation available at:

www.techniconseils.ca/en/scripts-remove-accents-ruby.php

This script is available under the following license : Creative Commons Attribution-Share Alike 2.5.

See full license and details at : creativecommons.org/licenses/by-sa/2.5/ca/

Version history:

* 1.0.3 : July 23 2009
            Corrected some incorrect character codes. Source is now wikipedia at:
              http://en.wikipedia.org/wiki/ISO/IEC_8859-1#Related_character_maps
            Thanks to Raimon Fernandez for pointing out the incorrect codes.
* 1.0.2 : October 29 2008
            Slightly optimized version of urlize - Jonathan Grenier ([email protected])
* 1.0.1 : October 29 2008
            First public revision - Jonathan Grenier ([email protected])

Constant Summary collapse

ACCENTS_MAPPING = The extended characters map used by removeaccents. The accented characters are coded here using their numerical equivalent to sidestep encoding issues. These correspond to ISO-8859-1 encoding.

{
  'E' => [200,201,202,203],
  'e' => [232,233,234,235],
  'A' => [192,193,194,195,196,197],
  'a' => [224,225,226,227,228,229,230],
  'C' => [199],
  'c' => [231],
  'O' => [210,211,212,213,214,216],
  'o' => [242,243,244,245,246,248],
  'I' => [204,205,206,207],
  'i' => [236,237,238,239],
  'U' => [217,218,219,220],
  'u' => [249,250,251,252],
  'N' => [209],
  'n' => [241],
  'Y' => [221],
  'y' => [253,255],
  'AE' => [306],
  'ae' => [346],
  'OE' => [188],
  'oe' => [189]
}

ACCENTS_MAPPING_REGEXPS =

ACCENTS_MAPPING.map do |letter, accents|
  packed = accents.pack('U*')
  regexp = Regexp.new("[#{packed}]", nil) #, 'U')
  
  [letter, regexp]
end

Instance Method Summary collapse

#without_accents ⇒ Object

Remove the accents from the string.

Instance Method Details

#without_accents ⇒ `Object`

Remove the accents from the string. Uses String::ACCENTS_MAPPING as the source map.

# File 'lib/core-extensions/string_without_accents.rb', line 61

def without_accents
  str = String.new(self)
  ACCENTS_MAPPING_REGEXPS.each {|letter,regexp|
    str.gsub!(regexp, letter)
  }
  str
end