My understanding is to advance the dedicated domain. Of course, that paper also mentioned some things, such as whether Coding can express not only Text, which can be used as a representation of the special field thinking with graph, sheet. After reading, you first think of: Compilation language and scripting language common use. The scripting language is convenient, and it is not necessary to compile, suitable for high-end users. For example, Perl. In the special area, special scripting languages can also reduce many repetitive labor, such as NS2, and other component libraries of MATLAB, and the Cantata under Linux can be a special domain scripting language, However, the manner is a graphic. Their problem is that the scripting language has been killed and cannot be changed. So, can you do this tool, you can freely create scripting languages to suit it. Completed with the compilation language and register the script to compile the executable module. There is a program to Parse script and call the corresponding module. It is also possible to design basic functions for scripting languages, such as , -, and so on, may have basic While, for. The footsteps can be a graphical interface, with a way of data streams, define the functions of each graphic, enter the output format, a bit similar to DirectShow. Does anyone have this interest, maybe you can cooperate to try it?