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Contents
# Many importers use this as a standard. This works like a wrapper for any
# IO object with a couple extra methods added. Note that if you use this in an
# importer you need to wrap the incoming input with it yourself (that is, an IO passed
# to the import module will NOT be wrapped into this already)
#
# io = ExtIO.new(my_open_file)
# io.gets_non_empty #=> "This is the first line after 2000 linebreaks"
#
class Tracksperanto::ExtIO < DelegateClass(IO)
def initialize(with)
__setobj__ with
end
# Similar to IO#gets however it will also strip the returned result. This is useful
# for doing
# while non_empty_str = io.gets_and_strip
# because you don't have to check for io.eof? all the time or see if the string is not nil
def gets_and_strip
s = gets
s ? s.strip : nil
end
# Similar to IO#gets but it skips empty lines and the first line returned will actually contain something
def gets_non_empty
until eof?
line = gets
return nil if line.nil?
s = line.strip
return s unless s.empty?
end
end
end
Version data entries
21 entries across 21 versions & 1 rubygems