Module: ActiveSupport::Multibyte::Unicode

Extended by:
Unicode
Included in:
Unicode
Defined in:
activesupport/lib/active_support/multibyte/unicode.rb

Constant Summary collapse

UNICODE_VERSION =

The Unicode version that is supported by the implementation

RbConfig::CONFIG["UNICODE_VERSION"]

Instance Method Summary collapse

Instance Method Details

#compose(codepoints) ⇒ Object

Compose decomposed characters to the composed form.


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# File 'activesupport/lib/active_support/multibyte/unicode.rb', line 21

def compose(codepoints)
  codepoints.pack("U*").unicode_normalize(:nfc).codepoints
end

#decompose(type, codepoints) ⇒ Object

Decompose composed characters to the decomposed form.


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# File 'activesupport/lib/active_support/multibyte/unicode.rb', line 12

def decompose(type, codepoints)
  if type == :compatibility
    codepoints.pack("U*").unicode_normalize(:nfkd).codepoints
  else
    codepoints.pack("U*").unicode_normalize(:nfd).codepoints
  end
end

#tidy_bytes(string, force = false) ⇒ Object

Replaces all ISO-8859-1 or CP1252 characters by their UTF-8 equivalent resulting in a valid UTF-8 string.

Passing true will forcibly tidy all bytes, assuming that the string's encoding is entirely CP1252 or ISO-8859-1.


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# File 'activesupport/lib/active_support/multibyte/unicode.rb', line 32

def tidy_bytes(string, force = false)
  return string if string.empty? || string.ascii_only?
  return recode_windows1252_chars(string) if force
  string.scrub { |bad| recode_windows1252_chars(bad) }
end