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Contents
# extensions specific to clevic
class Object
# recursively calls each entry in path_ary
# will return nil if any entry in path_ary
# results in a nil value.
def evaluate_path( path_ary )
path_ary.inject( self ) do |value, att|
value.nil? ? nil : value.send( att )
end
end
# pass self to the block and return the results of the block.
def with( &block )
yield( self )
end
# return a list of the subclasses of a class
# from Matt Williams
# http://matthewkwilliams.com/index.php/2008/08/22/rubys-objectspace-subclasses/
def self.subclasses(direct = false)
classes = []
if direct
ObjectSpace.each_object(Class) do |c|
next unless c.superclass == self
classes << c
end
else
ObjectSpace.each_object(Class) do |c|
next unless c.ancestors.include?(self) and (c != self)
classes << c
end
end
classes
end
end
class String
# just grab the character code of the last character in the string
# TODO this won't work in unicode or utf-8
def to_char
if RUBY_VERSION <= '1.8.6'
self[0]
else
bytes.first
end
end
end
class Array
def sparse_hash
Hash[ *(first..last).map do |index|
[index, include?( index ) ]
end.flatten ]
end
def sparse
(first..last).map do |index|
index if include?( index )
end
end
def section
return [] if empty?
rv = [first]
self[1..-1].each_with_index do |next_value, index|
break if rv.last.succ != next_value
rv << next_value
end
rv
end
# group by ascending values
def group
parts = []
next_section = section
if next_section.empty?
parts
else
parts << section
parts + self[section.size..-1].group
end
end
def range
first..last
end
end
def Range
def distance
last - first
end
end
begin
Date.new.freeze.to_s
rescue TypeError
# Workaround for the date freeze issue, if it exists.
class Date
def freeze
self
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems