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#
# xmp.rb - irb version of gotoken xmp
# $Release Version: 0.9$
# $Revision: 26986 $
# by Keiju ISHITSUKA(Nippon Rational Inc.)
#
# --
#
#
#
require "irb"
require "irb/frame"
class XMP
@RCS_ID='-$Id: xmp.rb 26986 2010-03-20 03:30:59Z nobu $-'
def initialize(bind = nil)
IRB.init_config(nil)
#IRB.parse_opts
#IRB.load_modules
IRB.conf[:PROMPT_MODE] = :XMP
bind = IRB::Frame.top(1) unless bind
ws = IRB::WorkSpace.new(bind)
@io = StringInputMethod.new
@irb = IRB::Irb.new(ws, @io)
@irb.context.ignore_sigint = false
# IRB.conf[:IRB_RC].call(@irb.context) if IRB.conf[:IRB_RC]
IRB.conf[:MAIN_CONTEXT] = @irb.context
end
def puts(exps)
@io.puts exps
if @irb.context.ignore_sigint
begin
trap_proc_b = trap("SIGINT"){@irb.signal_handle}
catch(:IRB_EXIT) do
@irb.eval_input
end
ensure
trap("SIGINT", trap_proc_b)
end
else
catch(:IRB_EXIT) do
@irb.eval_input
end
end
end
class StringInputMethod < IRB::InputMethod
def initialize
super
@exps = []
end
def eof?
@exps.empty?
end
def gets
while l = @exps.shift
next if /^\s+$/ =~ l
l.concat "\n"
print @prompt, l
break
end
l
end
def puts(exps)
if @encoding and exps.encoding != @encoding
enc = Encoding.compatible?(@exps.join("\n"), exps)
if enc.nil?
raise Encoding::CompatibilityError, "Encoding in which the passed expression is encoded is not compatible to the preceding's one"
else
@encoding = enc
end
else
@encoding = exps.encoding
end
@exps.concat exps.split(/\n/)
end
attr_reader :encoding
end
end
def xmp(exps, bind = nil)
bind = IRB::Frame.top(1) unless bind
xmp = XMP.new(bind)
xmp.puts exps
xmp
end
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