Module: Corefines::String::Unindent

Defined in:
lib/corefines/string.rb

Instance Method Summary collapse

Instance Method Details

#strip_heredoc ⇒ String

Alias for #unindent.

Returns:

  • (String) —

    a new unindented string.



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# File 'lib/corefines/string.rb', line 498

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

    alias_method :strip_heredoc, :unindent
  end
end

#unindent ⇒ String

Remove excessive indentation. Useful for multi-line strings embeded in already indented code.

Technically, it looks for the least indented line in the whole string (blank lines are ignored) and removes that amount of leading whitespace.

Examples:

"  Greetings,\n    programs!\n".unindent
=> "Greetings\n  programs"

Returns:

  • (String) —

    a new unindented string.



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# File 'lib/corefines/string.rb', line 498

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

    alias_method :strip_heredoc, :unindent
  end
end