1 files changed, 130 insertions, 0 deletions
diff --git a/code/runcontext.rb b/code/runcontext.rb
new file mode 100644
index 00000000..3d9ff457
--- /dev/null
+++ b/code/runcontext.rb
@@ -0,0 +1,130 @@
+class RunContext
+	## accessors {{{
+	attr_accessor( *%w[
+		all detach wait new_term
+		files handlers paths
+		mode
+		exec
+		multi
+	])
+	attr_reader( :flags )
+	def flags=(x)
+		assert x, Array, String
+
+		if x.is_a? Array
+			@flagstring = x.join('')
+			@flags = x
+		elsif x.is_a? String
+			@flagstring = x
+			@flags = x.split(//)
+		end
+
+		parse_flags
+		return x
+	end
+	## }}}
+
+	def initialize(files, mode=0, flags='')
+		@mode = mode.to_i
+		@files = files.dup
+		self.flags = flags
+		
+		@files.reject! {|file|
+			file.handler == nil or !file.exists?
+		}
+		@handlers = @files.map {|file| file.handler}
+		@paths = @files.map {|file| file.path}
+		@handler = @handlers.first
+
+		@multi = (@files.size > 1 and @handlers.uniq.size == 1)
+
+		@exec = Application.send(@handler, self)
+	end
+
+	def has_flag? x
+		if x.is_a? Regexp
+			@flagstring =~ x
+		elsif x.is_a? String
+			@flags.include? x
+		else
+			false
+		end
+	end
+
+	def parse_flags
+		@all = @detach = @new_term = @wait = false
+
+		## Positive flags
+		if has_flag? 'a'
+			@all = true
+		end
+		if has_flag? /[de]/
+			@detach = true
+		end
+		if has_flag? 't'
+			@new_term = true
+			@detach = true
+		end
+		if has_flag? 'w'
+			@wait = true
+		end
+
+		## Negative flags
+		if has_flag? 'A'
+			@all = false
+		end
+		if has_flag? /[DE]/
+			@detach = false
+		end
+		if has_flag? 'T'
+			@new_term = false
+		end
+		if has_flag? 'W'
+			@wait = false
+		end
+	end
+
+	def newway() true end
+
+	def no_mode?()
+		@mode == 0
+	end
+
+	def no_flags?()
+		@flagstring.empty?
+	end
+
+	def default_flags=(x)
+		if @flagstring.empty?
+			self.flags = x
+		end
+		x
+	end
+
+	## set the mode and return self.
+	def with_mode(n)
+		@mode = n
+		self
+	end
+
+	## wrapper {{{
+
+	## escape all files for direct use in the shell.
+	## if the _multi_ attribute is true, this is a shortcut for
+	##   rc.paths.map {|x| ~x}.join(' ')
+	## otherwise:
+	##   ~(rc.paths.first)
+	def ~() @paths.map {|x| ~x}.join(' ') end
+
+	## shortcut for _files.size_
+	def size() @files.size end
+
+	## shortcut for _files.first.path_
+	def first() @files.first.path end
+
+	## shortcut for _files.first.name_
+	def name() @files.first.name end
+
+	## }}}
+end
+