Class: String

Inherits:
Object
  • Object
show all
Defined in:
lib/thefox-ext/ext/string.rb

Instance Method Summary collapse

Instance Method Details

#is_digit? ⇒ Boolean

Is a String only made of numbers?

Returns:

  • (Boolean) 


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# File 'lib/thefox-ext/ext/string.rb', line 5

def is_digit?
  r = '0'..'9'
  self.split('').keep_if{ |c| r.include?(c) }.count == self.length
end

#is_lower? ⇒ Boolean

Is a String only made of lower-case charaters.

Returns:

  • (Boolean) 


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# File 'lib/thefox-ext/ext/string.rb', line 11

def is_lower?
  r = 'a'..'z'
  self.split('').keep_if{ |c| r.include?(c) }.count == self.length
end

#is_upper? ⇒ Boolean

Is a String only made of upper-case charaters.

Returns:

  • (Boolean) 


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# File 'lib/thefox-ext/ext/string.rb', line 17

def is_upper?
  r = 'A'..'Z'
  self.split('').keep_if{ |c| r.include?(c) }.count == self.length
end

#is_utf8? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/thefox-ext/ext/string.rb', line 22

def is_utf8?
  begin
    self.unpack('U*')
  rescue
    return false
  end
  return true
end

#titlecase ⇒ Object

Convert ‘hello world’ to ‘Hello World’.



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# File 'lib/thefox-ext/ext/string.rb', line 32

def titlecase
  self
    .split(/ /)
    .map{ |word| word.capitalize }
    .join(' ')
end

#to_hex ⇒ Object 



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# File 'lib/thefox-ext/ext/string.rb', line 39

def to_hex
  self.split('').map{ |c| sprintf '%02x', c.ord }.join
end

#to_i32a ⇒ Object

Convert a String to an Integer 32-bit Array.



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# File 'lib/thefox-ext/ext/string.rb', line 44

def to_i32a
  len = self.length
  len_w = (len >> 2) + (len & 0x3).to_b.to_i

  out = (0..(len_w - 1)).map{ |n| [n, 0] }.to_h

  i = 0
  self.split('').each do |s|
    out[i >> 2] |= (s.ord << ((3 - (i & 0x3)) << 3))
    i += 1
  end

  out
end

#to_utf8 ⇒ Object 



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# File 'lib/thefox-ext/ext/string.rb', line 59

def to_utf8
  if is_utf8?
    self.force_encoding('UTF-8')
  else
    self.force_encoding('ISO-8859-1').encode('UTF-8')
  end
end