Class: String

Inherits:
Object
  • Object
show all
Defined in:
lib/ds_string/core_ext.rb

Instance Method Summary collapse

Instance Method Details

#for_debug ⇒ Object 



44
45
46
 
# File 'lib/ds_string/core_ext.rb', line 44

def for_debug 
  "\n#{'+'.times 8}>\n#{self}#{'-'.times 8}>\n"
end

#times(num) ⇒ Object

Extending a String class with method that repeat the string n times. *simple case:*

"a".times 2 
=> "aa"

*complex case:*

 j = 0
 'A'.times 3 do |original_str, accumulative_str| 
   j += 1 
   "#{original_str}#{j}. "      
 end
=> 'A1. A2. A3. '



31
32
33
34
35
36
37
38
39
40
41
42
 
# File 'lib/ds_string/core_ext.rb', line 31

def times num
  ret = ''
  num.times do 
    if block_given?
      tmp = ret if ret != ''
      ret += yield(self, tmp) 
    else
      ret += self 
    end
  end
  ret
end

#to_bool ⇒ Object

Extending a String class with a method to convert a string in a boolean value. Possibles case insensitive values are ‘Yes’,‘Y’, ‘No’, ‘N’, ‘1’, ‘0’, ‘true’, ‘false’

"1".to_bool == true
"y".to_bool == true
"No".to_bool == true

Raises:

  • (ArgumentError) 


13
14
15
16
17
 
# File 'lib/ds_string/core_ext.rb', line 13

def to_bool
  return true if self == true || self =~ (/(true|t|yes|y|1)$/i)
  return false if self == false || self == '' || self == nil || self =~ (/(false|f|no|n|0)$/i)
  raise ArgumentError.new("invalid value for Boolean: \"#{self}\"")
end

#to_underscore ⇒ Object 



4
5
6
 
# File 'lib/ds_string/core_ext.rb', line 4

def to_underscore
  self.gsub!(/(.)([A-Z])/,'\1_\2').downcase!
end