Class: String

Inherits:

Object

• Object
• String

Defined in:

lib/pdfmd/string_extend.rb

Overview

Helper file with class extensions for string

Instance Method Summary

• #blank? ⇒ Boolean

  method to check if a string is empty.

• #to_bool ⇒ Object

  Boolean function.

Instance Method Details

#blank? ⇒ Boolean

method to check if a string is empty

Returns:

• (Boolean)

# File 'lib/pdfmd/string_extend.rb', line 22

def blank?
  self.strip.empty?
end

#to_bool ⇒ Object

Boolean function

'true|t|yes|y|1' == true
'false|f|no|n|0' == false
emtpy string is error

Raises:

• (ArgumentError)

# File 'lib/pdfmd/string_extend.rb', line 13

def to_bool
  return true if self == true || self =~ (/\A(true|t|yes|y|1)\Z/i)
  return false if self == false || self =~ (/\A(false|f|no|n|0)\Z/i)
  raise ArgumentError.new("invalid value for Boolean: \"#{self}\"")
end