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rdoc update.

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@20586 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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akr 2008-12-08 17:00:44 +00:00
parent b16baa9272
commit ca138145f5
1 changed files with 16 additions and 2 deletions
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18
lib/open3.rb
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@ -239,13 +239,13 @@ module Open3
# #
# # generate a thumnail image using the convert command of ImageMagick. # # generate a thumnail image using the convert command of ImageMagick.
# # However, if the image stored really in a file, # # However, if the image stored really in a file,
# # system("convert", "-thumbnail", "80", filename, "png:-") is better # # system("convert", "-thumbnail", "80", "png:#{filename}", "png:-") is better
# # because memory consumption. # # because memory consumption.
# # But if the image is stored in a DB or generated by gnuplot Open3.capture2 example, # # But if the image is stored in a DB or generated by gnuplot Open3.capture2 example,
# # Open3.capture3 is considerable. # # Open3.capture3 is considerable.
# # # #
# image = File.read("/usr/share/openclipart/png/animals/mammals/sheep-md-v0.1.png", :binmode=>true) # image = File.read("/usr/share/openclipart/png/animals/mammals/sheep-md-v0.1.png", :binmode=>true)
# thumnail, err, s = Open3.capture3("convert -thumbnail 80 - png:-", :stdin_data=>image, :binmode=>true) # thumnail, err, s = Open3.capture3("convert -thumbnail 80 png:- png:-", :stdin_data=>image, :binmode=>true)
# if s.success? # if s.success?
# STDOUT.binmode; print thumnail # STDOUT.binmode; print thumnail
# end # end
@ -548,6 +548,20 @@ module Open3
# # count lines # # count lines
# Open3.pipeline("sort", "uniq -c", :in=>"names.txt", :out=>"count") # Open3.pipeline("sort", "uniq -c", :in=>"names.txt", :out=>"count")
# #
# # cyclic pipeline
# r,w = IO.pipe
# w.print "ibase=14\n10\n"
# Open3.pipeline("bc", "tee /dev/tty", :in=>r, :out=>w)
# #=> 14
# # 18
# # 22
# # 30
# # 42
# # 58
# # 78
# # 106
# # 202
#
def pipeline(*cmds) def pipeline(*cmds)
if Hash === cmds.last if Hash === cmds.last
opts = cmds.pop.dup opts = cmds.pop.dup