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authorusa <usa@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2017-12-14 15:09:35 +0000
committerusa <usa@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2017-12-14 15:09:35 +0000
commit1a74fa4b04da04bd2bb33103dd3cf431438df38e (patch)
treef4a1d6c2961339e0c1d653c0f8427a53315080f0 /ruby_2_2/lib/irb/output-method.rb
parenta5b755e50e2d9aabf28ba24bf58644ca22b01a4f (diff)
add tag v2_2_9
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/tags/v2_2_9@61257 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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diff --git a/ruby_2_2/lib/irb/output-method.rb b/ruby_2_2/lib/irb/output-method.rb
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+#
+# output-method.rb - output methods used by irb
+# $Release Version: 0.9.6$
+# $Revision$
+# by Keiju ISHITSUKA(keiju@ruby-lang.org)
+#
+# --
+#
+#
+#
+
+require "e2mmap"
+
+module IRB
+ # An abstract output class for IO in irb. This is mainly used internally by
+ # IRB::Notifier. You can define your own output method to use with Irb.new,
+ # or Context.new
+ class OutputMethod
+ extend Exception2MessageMapper
+ def_exception :NotImplementedError, "Need to define `%s'"
+
+
+ # Open this method to implement your own output method, raises a
+ # NotImplementedError if you don't define #print in your own class.
+ def print(*opts)
+ OutputMethod.Raise NotImplementedError, "print"
+ end
+
+ # Prints the given +opts+, with a newline delimiter.
+ def printn(*opts)
+ print opts.join(" "), "\n"
+ end
+
+ # Extends IO#printf to format the given +opts+ for Kernel#sprintf using
+ # #parse_printf_format
+ def printf(format, *opts)
+ if /(%*)%I/ =~ format
+ format, opts = parse_printf_format(format, opts)
+ end
+ print sprintf(format, *opts)
+ end
+
+ # Returns an array of the given +format+ and +opts+ to be used by
+ # Kernel#sprintf, if there was a successful Regexp match in the given
+ # +format+ from #printf
+ #
+ # %
+ # <flag> [#0- +]
+ # <minimum field width> (\*|\*[1-9][0-9]*\$|[1-9][0-9]*)
+ # <precision>.(\*|\*[1-9][0-9]*\$|[1-9][0-9]*|)?
+ # #<length modifier>(hh|h|l|ll|L|q|j|z|t)
+ # <conversion specifier>[diouxXeEfgGcsb%]
+ def parse_printf_format(format, opts)
+ return format, opts if $1.size % 2 == 1
+ end
+
+ # Calls #print on each element in the given +objs+, followed by a newline
+ # character.
+ def puts(*objs)
+ for obj in objs
+ print(*obj)
+ print "\n"
+ end
+ end
+
+ # Prints the given +objs+ calling Object#inspect on each.
+ #
+ # See #puts for more detail.
+ def pp(*objs)
+ puts(*objs.collect{|obj| obj.inspect})
+ end
+
+ # Prints the given +objs+ calling Object#inspect on each and appending the
+ # given +prefix+.
+ #
+ # See #puts for more detail.
+ def ppx(prefix, *objs)
+ puts(*objs.collect{|obj| prefix+obj.inspect})
+ end
+
+ end
+
+ # A standard output printer
+ class StdioOutputMethod<OutputMethod
+ # Prints the given +opts+ to standard output, see IO#print for more
+ # information.
+ def print(*opts)
+ STDOUT.print(*opts)
+ end
+ end
+end