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Name	Size	Permission	Date
bigdecimal	[ DIR ]	drwxr-xr-x	2026-05-14 08:42
cgi	[ DIR ]	drwxr-xr-x	2026-05-14 08:42
did_you_mean	[ DIR ]	drwxr-xr-x	2026-05-14 08:42
digest	[ DIR ]	drwxr-xr-x	2026-05-14 08:42
erb	[ DIR ]	drwxr-xr-x	2026-05-14 08:42
error_highlight	[ DIR ]	drwxr-xr-x	2026-05-14 08:42
forwardable	[ DIR ]	drwxr-xr-x	2026-05-14 08:42
io	[ DIR ]	drwxr-xr-x	2026-05-14 08:42
json	[ DIR ]	drwxr-xr-x	2026-05-14 08:42
net	[ DIR ]	drwxr-xr-x	2026-05-14 08:42
objspace	[ DIR ]	drwxr-xr-x	2026-05-14 08:42
open3	[ DIR ]	drwxr-xr-x	2026-05-14 08:42
openssl	[ DIR ]	drwxr-xr-x	2026-05-14 08:42
optparse	[ DIR ]	drwxr-xr-x	2026-05-14 08:42
prism	[ DIR ]	drwxr-xr-x	2026-05-14 08:42
psych	[ DIR ]	drwxr-xr-x	2026-05-14 08:42
random	[ DIR ]	drwxr-xr-x	2026-05-14 08:42
ripper	[ DIR ]	drwxr-xr-x	2026-05-14 08:42
set	[ DIR ]	drwxr-xr-x	2026-05-14 08:42
strscan	[ DIR ]	drwxr-xr-x	2026-05-14 08:42
syntax_suggest	[ DIR ]	drwxr-xr-x	2026-05-14 08:42
unicode_normalize	[ DIR ]	drwxr-xr-x	2026-05-14 08:42
uri	[ DIR ]	drwxr-xr-x	2026-05-14 08:42
vendor_ruby	[ DIR ]	drwxr-xr-x	2026-04-24 16:07
yaml	[ DIR ]	drwxr-xr-x	2026-05-14 08:42
English.rb	5.96 KB	-rw-r--r--	2026-04-24 16:08
bundled_gems.rb	8.41 KB	-rw-r--r--	2026-04-24 16:08
cgi.rb	311 B	-rw-r--r--	2026-04-24 16:08
coverage.rb	517 B	-rw-r--r--	2026-04-24 16:08
date.rb	1.17 KB	-rw-r--r--	2026-04-24 16:08
delegate.rb	11.96 KB	-rw-r--r--	2026-04-24 16:08
did_you_mean.rb	4.51 KB	-rw-r--r--	2026-04-24 16:08
digest.rb	3.3 KB	-rw-r--r--	2026-04-24 16:08
erb.rb	32.57 KB	-rw-r--r--	2026-04-24 16:08
error_highlight.rb	84 B	-rw-r--r--	2026-04-24 16:08
expect.rb	2.19 KB	-rw-r--r--	2026-04-24 16:08
fileutils.rb	79.18 KB	-rw-r--r--	2026-04-24 16:08
find.rb	2.54 KB	-rw-r--r--	2026-04-24 16:08
forwardable.rb	8.81 KB	-rw-r--r--	2026-04-24 16:08
ipaddr.rb	22.86 KB	-rw-r--r--	2026-04-24 16:08
json.rb	21.45 KB	-rw-r--r--	2026-04-24 16:08
mkmf.rb	93.16 KB	-rw-r--r--	2026-04-24 16:08
monitor.rb	6.97 KB	-rw-r--r--	2026-04-24 16:08
objspace.rb	4.14 KB	-rw-r--r--	2026-04-24 16:08
open-uri.rb	28.58 KB	-rw-r--r--	2026-04-24 16:08
open3.rb	47.51 KB	-rw-r--r--	2026-04-24 16:08
openssl.rb	1.24 KB	-rw-r--r--	2026-04-24 16:08
optionparser.rb	59 B	-rw-r--r--	2026-04-24 16:08
optparse.rb	65.44 KB	-rw-r--r--	2026-04-24 16:08
pathname.rb	2 KB	-rw-r--r--	2026-04-24 16:08
pp.rb	19.21 KB	-rw-r--r--	2026-04-24 16:08
prettyprint.rb	15.95 KB	-rw-r--r--	2026-04-24 16:08
prism.rb	3.74 KB	-rw-r--r--	2026-04-24 16:08
psych.rb	26.05 KB	-rw-r--r--	2026-04-24 16:08
resolv.rb	88.39 KB	-rw-r--r--	2026-04-24 16:08
ripper.rb	2.44 KB	-rw-r--r--	2026-04-24 16:08
securerandom.rb	2.28 KB	-rw-r--r--	2026-04-24 16:08
shellwords.rb	7.53 KB	-rw-r--r--	2026-04-24 16:08
singleton.rb	5.59 KB	-rw-r--r--	2026-04-24 16:08
socket.rb	61.26 KB	-rw-r--r--	2026-04-24 16:08
syntax_suggest.rb	74 B	-rw-r--r--	2026-04-24 16:08
tempfile.rb	20.7 KB	-rw-r--r--	2026-04-24 16:08
time.rb	24.01 KB	-rw-r--r--	2026-04-24 16:08
timeout.rb	10.48 KB	-rw-r--r--	2026-04-24 16:08
tmpdir.rb	5.62 KB	-rw-r--r--	2026-04-24 16:08
tsort.rb	14.36 KB	-rw-r--r--	2026-04-24 16:08
un.rb	11.17 KB	-rw-r--r--	2026-04-24 16:08
uri.rb	3.09 KB	-rw-r--r--	2026-04-24 16:08
weakref.rb	1.39 KB	-rw-r--r--	2026-04-24 16:08
yaml.rb	2.16 KB	-rw-r--r--	2026-04-24 16:08

Rename

# frozen_string_literal: true
$expect_verbose = false

class IO
  # call-seq:
  #   IO#expect(pattern,timeout=9999999)                  ->  Array
  #   IO#expect(pattern,timeout=9999999) { |result| ... } ->  nil
  #
  # The +expect+ library adds instance method IO#expect,
  # which is similar to the
  # {TCL expect extension}[https://www.tcl.tk/man/expect5.31/expect.1.html].
  #
  # To use this method, you must require +expect+:
  #
  #   require 'expect'
  #
  # Reads from the IO until the given +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.
  #
  # When called without a block, it waits until the input that matches the
  # given +pattern+ is obtained from the IO or the time specified as the
  # timeout passes. An array is returned when the pattern is obtained from the
  # IO. The first element of the array is the entire string obtained from the
  # IO until the pattern matches, followed by elements indicating which the
  # pattern which matched to the anchor in the regular expression.
  #
  # The optional timeout parameter defines, in seconds, the total time to wait
  # for the pattern.  If the timeout expires or eof is found, nil is returned
  # or yielded.  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 = ''.dup
    case pat
    when String
      e_pat = Regexp.new(Regexp.quote(pat))
    when Regexp
      e_pat = pat
    else
      raise TypeError, "unsupported pattern class: #{pat.class}"
    end
    @unusedBuf ||= ''
    while true
      if not @unusedBuf.empty?
        c = @unusedBuf.slice!(0)
      elsif !IO.select([self],nil,nil,timeout) or eof? then
        result = nil
        @unusedBuf = buf
        break
      else
        c = getc
      end
      buf << c
      if $expect_verbose
        STDOUT.print c
        STDOUT.flush
      end
      if mat=e_pat.match(buf) then
        result = [buf,*mat.captures]
        break
      end
    end
    if block_given? then
      yield result
    else
      return result
    end
    nil
  end
end