https://www.dotnetzone.gr:443/cs/blogs/abekiaris/archive/2010/05/11/dsl-language-for-maximizing-speed-input.aspxI recently had the following case . I was given the domain model bellow and was asked to provide a solution so a user could add schedules of the form Thu-Wen 14.15 / 16.45, Thu & Mon-Wen 22.15 /00.45, Sat,Sun 12.15 3D translated into with the maximumelCommunityServer 2.1 SP3 (Build: 20423.1)