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# Copied from ActiveSupport so we don't have to add ActiveSupport as a dependency just for this method.
class String
# Makes an underscored, lowercase form from the expression in the string.
#
# Changes '::' to '/' to convert namespaces to paths.
#
# 'ActiveModel'.underscore # => "active_model"
# 'ActiveModel::Errors'.underscore # => "active_model/errors"
#
# As a rule of thumb you can think of +underscore+ as the inverse of
# +camelize+, though there are cases where that does not hold:
#
# 'SSLError'.underscore.camelize # => "SslError"
def underscore
return self unless self =~ /[A-Z-]|::/
word = self.to_s.gsub(/::/, '/')
# word.gsub!(/(?:(?<=([A-Za-z\d]))|\b)(#{inflections.acronym_regex})(?=\b|[^a-z])/) { "#{$1 && '_'}#{$2.downcase}" }
word.gsub!(/([A-Z\d]+)([A-Z][a-z])/, '\1_\2')
word.gsub!(/([a-z\d])([A-Z])/, '\1_\2')
word.tr!("-", "_")
word.downcase!
word
end
end
Version data entries
12 entries across 12 versions & 1 rubygems