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unless String.method_defined? :strip_indent
class String
# The method strips the whitespace preceding the base indentation.
# Useful for HEREDOCs and other multi-line strings.
#
# @example
#
# code = <<-END.strip_indent
# def test
# some_method
# other_method
# end
# END
#
# #=> "def\n some_method\n \nother_method\nend"
def strip_indent
leading_space = scan(/^[ \t]*(?=\S)/).min
indent = leading_space ? leading_space.size : 0
gsub(/^[ \t]{#{indent}}/, '')
end
end
end
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