diff options
Diffstat (limited to 'ext/pty/lib/expect.rb')
| -rw-r--r-- | ext/pty/lib/expect.rb | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/ext/pty/lib/expect.rb b/ext/pty/lib/expect.rb index c3f3925be7..22cbf54115 100644 --- a/ext/pty/lib/expect.rb +++ b/ext/pty/lib/expect.rb @@ -1,18 +1,19 @@ +# frozen_string_literal: true $expect_verbose = false -# Expect library adds the IO instance method #expect, which does similar act to -# tcl's expect extension. -# -# In order to use this method, you must require expect: -# -# require 'expect' -# -# Please see #expect for usage. 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. @@ -30,7 +31,7 @@ class IO # 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 = '' + buf = ''.dup case pat when String e_pat = Regexp.new(Regexp.quote(pat)) @@ -42,13 +43,13 @@ class IO @unusedBuf ||= '' while true if not @unusedBuf.empty? - c = @unusedBuf.slice!(0).chr + c = @unusedBuf.slice!(0) elsif !IO.select([self],nil,nil,timeout) or eof? then result = nil @unusedBuf = buf break else - c = getc.chr + c = getc end buf << c if $expect_verbose @@ -56,7 +57,7 @@ class IO STDOUT.flush end if mat=e_pat.match(buf) then - result = [buf,*mat.to_a[1..-1]] + result = [buf,*mat.captures] break end end @@ -68,4 +69,3 @@ class IO nil end end - |