Class: String

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

Overview

Extensions to the core String class

Instance Method Summary collapse

Instance Method Details

#blank? ⇒ Boolean

Checks whether a string is blank. A string is considered blank if it is either empty or contains only whitespace characters.

Examples:

''.blank? #=> true
'    '.blank? #=> true
'  test'.blank? #=> false

Returns:

  • (Boolean) —

    true is the string is blank, false otherwise



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# File 'lib/rubocop/core_ext/string.rb', line 19

def blank?
  empty? || strip.empty?
end

#strip_indent ⇒ Object

TODO:

Replace call sites with squiggly heredocs when required Ruby version is >= 2.3.0

The method strips the whitespace preceding the base indentation. Useful for HEREDOCs and other multi-line strings.

Examples:


code = <<-END.strip_indent
  def test
    some_method
    other_method
  end
END

#=> "def\n  some_method\n  \nother_method\nend"


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# File 'lib/rubocop/core_ext/string.rb', line 41

def strip_indent
  leading_space = scan(/^[ \t]*(?=\S)/).min
  indent = leading_space ? leading_space.size : 0
  gsub(/^[ \t]{#{indent}}/, '')
end