JezK
Edit File: filter.rb
# # shell/filter.rb - # $Release Version: 0.6.0 $ # $Revision: 11708 $ # $Date: 2007-02-13 08:01:19 +0900 (Tue, 13 Feb 2007) $ # by Keiju ISHITSUKA(Nihon Rational Software Co.,Ltd) # # -- # # # class Shell # # Filter # A method to require # each() # class Filter include Enumerable def initialize(sh) @shell = sh # parent shell @input = nil # input filter end attr_reader :input def input=(filter) @input = filter end def each(rs = nil) rs = @shell.record_separator unless rs if @input @input.each(rs){|l| yield l} end end def < (src) case src when String cat = Cat.new(@shell, src) cat | self when IO self.input = src self else Shell.Fail Error::CantApplyMethod, "<", to.class end end def > (to) case to when String dst = @shell.open(to, "w") begin each(){|l| dst << l} ensure dst.close end when IO each(){|l| to << l} else Shell.Fail Error::CantApplyMethod, ">", to.class end self end def >> (to) begin Shell.cd(@shell.pwd).append(to, self) rescue CantApplyMethod Shell.Fail Error::CantApplyMethod, ">>", to.class end end def | (filter) filter.input = self if active? @shell.process_controller.start_job filter end filter end def + (filter) Join.new(@shell, self, filter) end def to_a ary = [] each(){|l| ary.push l} ary end def to_s str = "" each(){|l| str.concat l} str end def inspect if @shell.debug.kind_of?(Integer) && @shell.debug > 2 super else to_s end end end end