Help regarding the command *Tetmesh

I would be nice if someone can explain the following command line

*createstringarray 3  'pars: post_cln' 'tet: 355 1.2 2 0 0.8' '2d: 1 0 1 3 0.15 30 1'

I want to write a program inorder to automate the tetmesh operation using *tetmesh. But in *tetmesh command an input string array is required which is mentioned above. I am unable to understand the above mentioned command line. I would be nice if someone can explain above line part by part for eg. *createstringarray 3 means an array of size 3 is created. Later what is the function of  'pars: post_cln' and 'tet:...' '2d:...'. 

Just for the reference below is the command line used to create a automatic 3d tetmesh for a solid. Please comment on the same 

*createstringarray 3  'pars: post_cln' 'tet: 355 1.2 2 0 0.8' '2d: 1 0 1 3 0.15 30 1'
*createmark solids 1  1  
*tetmesh solids 1  0 elements 0 -1 1 3 

Thank you so much