/usr/lib/ruby/1.8/shell/builtin-command.rb is in libruby1.8 1.8.7.352-2ubuntu1.
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# shell/builtin-command.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)
#
# --
#
#
#
require "shell/filter"
class Shell
class BuiltInCommand<Filter
def wait?
false
end
def active?
true
end
end
class Echo < BuiltInCommand
def initialize(sh, *strings)
super sh
@strings = strings
end
def each(rs = nil)
rs = @shell.record_separator unless rs
for str in @strings
yield str + rs
end
end
end
class Cat < BuiltInCommand
def initialize(sh, *filenames)
super sh
@cat_files = filenames
end
def each(rs = nil)
if @cat_files.empty?
super
else
for src in @cat_files
@shell.foreach(src, rs){|l| yield l}
end
end
end
end
class Glob < BuiltInCommand
def initialize(sh, pattern)
super sh
@pattern = pattern
Thread.critical = true
back = Dir.pwd
begin
Dir.chdir @shell.cwd
@files = Dir[pattern]
ensure
Dir.chdir back
Thread.critical = false
end
end
def each(rs = nil)
rs = @shell.record_separator unless rs
for f in @files
yield f+rs
end
end
end
# class Sort < Cat
# def initialize(sh, *filenames)
# super
# end
#
# def each(rs = nil)
# ary = []
# super{|l| ary.push l}
# for l in ary.sort!
# yield l
# end
# end
# end
class AppendIO < BuiltInCommand
def initialize(sh, io, filter)
super sh
@input = filter
@io = io
end
def input=(filter)
@input.input=filter
for l in @input
@io << l
end
end
end
class AppendFile < AppendIO
def initialize(sh, to_filename, filter)
@file_name = to_filename
io = sh.open(to_filename, "a")
super(sh, io, filter)
end
def input=(filter)
begin
super
ensure
@io.close
end
end
end
class Tee < BuiltInCommand
def initialize(sh, filename)
super sh
@to_filename = filename
end
def each(rs = nil)
to = @shell.open(@to_filename, "w")
begin
super{|l| to << l; yield l}
ensure
to.close
end
end
end
class Concat < BuiltInCommand
def initialize(sh, *jobs)
super(sh)
@jobs = jobs
end
def each(rs = nil)
while job = @jobs.shift
job.each{|l| yield l}
end
end
end
end
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