Module: Klam::Primitives::Strings

Included in:
Environment
Defined in:
lib/klam/primitives/strings.rb

Instance Method Summary collapse

Instance Method Details

#cn(s1, s2) ⇒ Object 


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# File 'lib/klam/primitives/strings.rb', line 18

def cn(s1, s2)
  s1 + s2
end

#n_to_string(n) ⇒ Object Also known as: n->string 


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# File 'lib/klam/primitives/strings.rb', line 45

def n_to_string(n)
  '' << n
end

#pos(str, n) ⇒ Object 


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# File 'lib/klam/primitives/strings.rb', line 4

def pos(str, n)
  if n < 0 || n >= str.length
    ::Kernel.raise ::Klam::Error, "index out of bounds: #{n}"
  end
  str[n]
end

#str(x) ⇒ Object 


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# File 'lib/klam/primitives/strings.rb', line 22

def str(x)
  case x
  when String
    '"' + x + '"'
  when Symbol
    x.to_s
  when Numeric
    x.to_s
  when TrueClass, FalseClass
    x.to_s
  when Proc
    x.to_s
  when IO
    x.to_s
  else
    ::Kernel.raise ::Klam::Error, "str applied to non-atomic type: #{x.class}"
  end
end

#string?(x) ⇒ Boolean

Returns:

  • (Boolean) 

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# File 'lib/klam/primitives/strings.rb', line 41

def string?(x)
  x.kind_of?(String)
end

#string_to_n(str) ⇒ Object Also known as: string->n 


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# File 'lib/klam/primitives/strings.rb', line 51

def string_to_n(str)
  str.ord
end

#tlstr(str) ⇒ Object 


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# File 'lib/klam/primitives/strings.rb', line 11

def tlstr(str)
  if str.empty?
    ::Kernel.raise ::Klam::Error, 'attempted to take tail of empty string'
  end
  str[1..-1]
end