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module Vedeu
# A module for common methods used throughout Vedeu.
#
module Common
# Returns a boolean indicating whether a variable is nil or empty.
#
# @param variable [String|Symbol|Array|Fixnum] The variable to
# check.
# @return [Boolean]
def absent?(variable)
!present?(variable)
end
# Removes the module part from the expression in the string.
#
# @example
# demodulize('Vedeu::SomeModule::SomeClass') # => "SomeClass"
#
# @param klass [Class|String]
# @return [String]
def demodulize(klass)
klass = klass.to_s
klass[(klass.rindex('::') + 2)..-1]
end
# Returns a boolean indicating whether a variable has a useful
# value.
#
# @param variable [String|Symbol|Array|Fixnum] The variable to
# check.
# @return [Boolean]
def present?(variable)
return true if variable.is_a?(Fixnum)
return true unless variable.nil? || variable.empty?
false
end
# Converts a class name to a lowercase snake case string.
#
# @example
# snake_case(MyClassName) # => "my_class_name"
# snake_case(NameSpaced::ClassName)
# # => "name_spaced/class_name"
#
# @param name [String]
# @return [String]
def snake_case(name)
name.gsub!(/::/, '/')
name.gsub!(/([A-Z]+)([A-Z][a-z])/, '\1_\2')
name.gsub!(/([a-z\d])([A-Z])/, '\1_\2')
name.tr!('-', '_')
name.downcase!
name
end
end # Common
end # Vedeu
Version data entries
22 entries across 22 versions & 1 rubygems