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Name	Size	Permission	Date
bigdecimal	[ DIR ]	drwxr-xr-x	2026-02-10 10:04
cgi	[ DIR ]	drwxr-xr-x	2026-02-10 10:04
did_you_mean	[ DIR ]	drwxr-xr-x	2026-02-10 10:04
digest	[ DIR ]	drwxr-xr-x	2026-02-10 10:04
erb	[ DIR ]	drwxr-xr-x	2026-02-10 10:04
error_highlight	[ DIR ]	drwxr-xr-x	2026-02-10 10:04
fiddle	[ DIR ]	drwxr-xr-x	2026-02-10 10:04
forwardable	[ DIR ]	drwxr-xr-x	2026-02-10 10:04
io	[ DIR ]	drwxr-xr-x	2026-01-27 16:00
json	[ DIR ]	drwxr-xr-x	2026-02-10 10:04
logger	[ DIR ]	drwxr-xr-x	2026-02-10 10:04
net	[ DIR ]	drwxr-xr-x	2026-02-10 10:04
objspace	[ DIR ]	drwxr-xr-x	2026-02-10 10:04
open3	[ DIR ]	drwxr-xr-x	2026-02-10 10:04
openssl	[ DIR ]	drwxr-xr-x	2026-02-10 10:04
optparse	[ DIR ]	drwxr-xr-x	2026-02-10 10:04
prism	[ DIR ]	drwxr-xr-x	2026-02-10 10:04
psych	[ DIR ]	drwxr-xr-x	2026-02-10 10:04
random	[ DIR ]	drwxr-xr-x	2026-02-10 10:04
reline	[ DIR ]	drwxr-xr-x	2026-02-10 10:04
ripper	[ DIR ]	drwxr-xr-x	2026-02-10 10:04
ruby_vm	[ DIR ]	drwxr-xr-x	2025-03-28 23:42
set	[ DIR ]	drwxr-xr-x	2026-02-10 10:04
strscan	[ DIR ]	drwxr-xr-x	2026-02-10 10:04
syntax_suggest	[ DIR ]	drwxr-xr-x	2026-02-10 10:04
unicode_normalize	[ DIR ]	drwxr-xr-x	2026-02-10 10:04
uri	[ DIR ]	drwxr-xr-x	2026-02-10 10:04
vendor_ruby	[ DIR ]	drwxr-xr-x	2026-01-27 16:00
yaml	[ DIR ]	drwxr-xr-x	2026-02-10 10:04
English.rb	5.54 KB	-rw-r--r--	2026-01-27 16:00
benchmark.rb	18.66 KB	-rw-r--r--	2026-01-27 16:00
bundled_gems.rb	7.28 KB	-rw-r--r--	2026-01-27 16:00
cgi.rb	9.83 KB	-rw-r--r--	2026-01-27 16:00
coverage.rb	368 B	-rw-r--r--	2026-01-27 16:00
date.rb	1.17 KB	-rw-r--r--	2026-01-27 16:00
delegate.rb	11.68 KB	-rw-r--r--	2026-01-27 16:00
did_you_mean.rb	4.51 KB	-rw-r--r--	2026-01-27 16:00
digest.rb	3.3 KB	-rw-r--r--	2026-01-27 16:00
erb.rb	14.53 KB	-rw-r--r--	2026-01-27 16:00
error_highlight.rb	84 B	-rw-r--r--	2026-01-27 16:00
expect.rb	2.19 KB	-rw-r--r--	2026-01-27 16:00
fiddle.rb	3.67 KB	-rw-r--r--	2026-01-27 16:00
fileutils.rb	78.8 KB	-rw-r--r--	2026-01-27 16:00
find.rb	2.52 KB	-rw-r--r--	2026-01-27 16:00
forwardable.rb	9.03 KB	-rw-r--r--	2026-01-27 16:00
ipaddr.rb	22.4 KB	-rw-r--r--	2026-01-27 16:00
json.rb	19.58 KB	-rw-r--r--	2026-01-27 16:00
logger.rb	22.49 KB	-rw-r--r--	2026-01-27 16:00
mkmf.rb	92.63 KB	-rw-r--r--	2026-01-27 16:00
monitor.rb	6.97 KB	-rw-r--r--	2026-01-27 16:00
objspace.rb	4.14 KB	-rw-r--r--	2026-01-27 16:00
open-uri.rb	28.38 KB	-rw-r--r--	2026-01-27 16:00
open3.rb	47.51 KB	-rw-r--r--	2026-01-27 16:00
openssl.rb	1.06 KB	-rw-r--r--	2026-01-27 16:00
optionparser.rb	59 B	-rw-r--r--	2026-01-27 16:00
optparse.rb	64.17 KB	-rw-r--r--	2026-01-27 16:00
ostruct.rb	14.22 KB	-rw-r--r--	2026-01-27 16:00
pathname.rb	17.2 KB	-rw-r--r--	2026-01-27 16:00
pp.rb	18.36 KB	-rw-r--r--	2026-01-27 16:00
prettyprint.rb	15.93 KB	-rw-r--r--	2026-01-27 16:00
prism.rb	3.03 KB	-rw-r--r--	2026-01-27 16:00
pstore.rb	20.36 KB	-rw-r--r--	2026-01-27 16:00
psych.rb	25.1 KB	-rw-r--r--	2026-01-27 16:00
readline.rb	215 B	-rw-r--r--	2026-01-27 16:00
reline.rb	14.93 KB	-rw-r--r--	2026-01-27 16:00
resolv.rb	87.96 KB	-rw-r--r--	2026-01-27 16:00
ripper.rb	2.44 KB	-rw-r--r--	2026-01-27 16:00
securerandom.rb	2.28 KB	-rw-r--r--	2026-01-27 16:00
set.rb	25 KB	-rw-r--r--	2026-01-27 16:00
shellwords.rb	7.53 KB	-rw-r--r--	2026-01-27 16:00
singleton.rb	5.52 KB	-rw-r--r--	2026-01-27 16:00
socket.rb	59.49 KB	-rw-r--r--	2026-01-27 16:00
syntax_suggest.rb	74 B	-rw-r--r--	2026-01-27 16:00
tempfile.rb	20.68 KB	-rw-r--r--	2026-01-27 16:00
time.rb	23.96 KB	-rw-r--r--	2026-01-27 16:00
timeout.rb	5.72 KB	-rw-r--r--	2026-01-27 16:00
tmpdir.rb	5.62 KB	-rw-r--r--	2026-01-27 16:00
tsort.rb	14.29 KB	-rw-r--r--	2026-01-27 16:00
un.rb	11.17 KB	-rw-r--r--	2026-01-27 16:00
uri.rb	3.09 KB	-rw-r--r--	2026-01-27 16:00
weakref.rb	1.36 KB	-rw-r--r--	2026-01-27 16:00
yaml.rb	2.13 KB	-rw-r--r--	2026-01-27 16:00

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