diff options
Diffstat (limited to 'lib/shell/builtin-command.rb')
-rw-r--r-- | lib/shell/builtin-command.rb | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/lib/shell/builtin-command.rb b/lib/shell/builtin-command.rb new file mode 100644 index 0000000000..db1adfa48b --- /dev/null +++ b/lib/shell/builtin-command.rb @@ -0,0 +1,154 @@ +# +# shell/builtin-command.rb - +# $Release Version: 0.6.0 $ +# $Revision$ +# $Date$ +# 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 |