Add bin and edit workflow

bin/gems/rb-fsevent-0.11.2/lib/otnetstring.rb

@@ -0,0 +1,85 @@
+# Copyright (c) 2011 Konstantin Haase
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+
+
+require 'stringio'
+
+module OTNetstring
+  class Error < StandardError; end
+
+  class << self
+    def parse(io, encoding = 'internal', fallback_encoding = nil)
+      fallback_encoding = io.encoding if io.respond_to? :encoding
+      io = StringIO.new(io) if io.respond_to? :to_str
+      length, byte = String.new, nil
+
+      while byte.nil? || byte =~ /\d/
+        length << byte if byte
+        byte = io.read(1)
+      end
+
+      if length.size > 9
+        raise Error, "#{length} is longer than 9 digits"
+      elsif length !~ /\d+/
+        raise Error, "Expected '#{byte}' to be a digit"
+      end
+      length = Integer(length)
+
+      case byte
+      when '#' then Integer io.read(length)
+      when ',' then with_encoding io.read(length), encoding, fallback_encoding
+      when '~' then
+        raise Error, "nil has length of 0, #{length} given" unless length == 0
+      when '!' then io.read(length) == 'true'
+      when '[', '{'
+        array = []
+        start = io.pos
+        array << parse(io, encoding, fallback_encoding) while io.pos - start < length
+        raise Error, 'Nested element longer than container' if io.pos - start != length
+        byte == "{" ? Hash[*array] : array
+      else
+        raise Error, "Unknown type '#{byte}'"
+      end
+    end
+
+    def encode(obj, string_sep = ',')
+      case obj
+      when String   then with_encoding "#{obj.bytesize}#{string_sep}#{obj}", "binary"
+      when Integer  then encode(obj.inspect, '#')
+      when NilClass then "0~"
+      when Array    then encode(obj.map { |e| encode(e) }.join, '[')
+      when Hash     then encode(obj.map { |a,b| encode(a)+encode(b) }.join, '{')
+      when FalseClass, TrueClass then encode(obj.inspect, '!')
+      else raise Error, 'cannot encode %p' % obj
+      end
+    end
+
+    private
+
+    def with_encoding(str, encoding, fallback = nil)
+      return str unless str.respond_to? :encode
+      encoding = Encoding.find encoding if encoding.respond_to? :to_str
+      encoding ||= fallback
+      encoding ? str.encode(encoding) : str
+    rescue EncodingError
+      str.force_encoding(encoding)
+    end
+  end
+end