CotEditorのスクリプトで編集中のファイルに対してgnuplotを実行する方法。

CotEditorのScriptMenuフォルダに以下のファイルを保存する。

1)gnuplot.^@g.applescript

tell application "CotEditor"
	if exists front document then
		set file_path to path of front document as Unicode text
		if (file_path is not "") then
			set file_dir to (do shell script "/usr/bin/dirname " & file_path)
			set cmd to "/bin/bash --login -c \"cd " & file_dir & ";" & "gnuplot " & file_path & "\""
			set result to do shell script cmd
			if (result is not "") then
				display dialog result
			end if
			set cmd to "cat " & file_path & " | ruby -n -e 'print $_.scan(/^set output \"(.*)\"/)'"
			set result to do shell script cmd
			if (result is not "") then
				set output_file_path to file_dir & "/" & result as POSIX file
				display dialog "Done. Open " & output_file_path & "?" buttons {"Open", "Exit"} default button 1
				set button_returned to button returned of result
				if button_returned is "Open" then
					tell application "Finder" to open file output_file_path
				end if
			else
				display dialog "Done."
			end if
		else if (file_path is "") then
			display dialog "Save the file before running."
		end if
	end if
end tell

以上。

ショートカットキー一発で実行できるので、gnuplotに限らずよく使うCUIアプリを登録しておくとよい（いろいろなサンプルがネットで公開されてる）。