mame	2010-04-10 00:04:40 +0900 (Sat, 10 Apr 2010)

  New Revision: 27274

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=27274

  Log:
    * ext/pty/lib/expect.rb: add rdoc.  based on a patch from Luiz Angelo
      Daros de Luca in [ruby-core:23464].

  Modified files:
    trunk/ChangeLog
    trunk/ext/pty/lib/expect.rb

Index: ChangeLog
===================================================================
--- ChangeLog	(revision 27273)
+++ ChangeLog	(revision 27274)
@@ -1,3 +1,8 @@
+Fri Apr  9 23:57:35 2010  Yusuke Endoh  <mame@t...>
+
+	* ext/pty/lib/expect.rb: add rdoc.  based on a patch from Luiz Angelo
+	  Daros de Luca in [ruby-core:23464].
+
 Fri Apr  9 23:54:16 2010  Yusuke Endoh  <mame@t...>
 
 	* lib/irb/init.rb, lib/irb/lc/help-message,
Index: ext/pty/lib/expect.rb
===================================================================
--- ext/pty/lib/expect.rb	(revision 27273)
+++ ext/pty/lib/expect.rb	(revision 27274)
@@ -1,6 +1,12 @@
 $expect_verbose = false
 
 class IO
+  # Reads ios until pattern matches or the timeout is over. It returns
+  # an array with the read buffer, followed by the matches. If a block is given,
+  # the result is yielded to the block and returns nil. The optional timeout parameter defines,
+  # in seconds, the total time to wait for pattern. If it is over of eof is found, it 
+  # returns/yields nil. However, the buffer in a timeout session is kept for the next expect call.
+  # The default timeout is 9999999 seconds.
   def expect(pat,timeout=9999999)
     buf = ''
     case pat

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