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authorJari Vetoniemi <jari.vetoniemi@indooratlas.com>2020-03-16 18:49:26 +0900
committerJari Vetoniemi <jari.vetoniemi@indooratlas.com>2020-03-30 00:39:06 +0900
commitfcbf63e62c627deae76c1b8cb8c0876c536ed811 (patch)
tree64cb17de3f41a2b6fef2368028fbd00349946994 /jni/ruby/lib/irb/output-method.rb
Fresh start
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+#
+# output-method.rb - output methods used by irb
+# $Release Version: 0.9.6$
+# $Revision: 47120 $
+# 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