Programming

 The VSI Text Processing Utility (TPU) provides a structured
 progamming language with an interpreter, compiler, and other software
 components, for creating text editors and other applications.  TPU
 has a callable interface so you can call editing functions from a
 program written in BLISS, C, FORTRAN, or other language.

 EVE (Extensible Versatile Editor) is the default TPU application.
 You can use TPU to customize EVE or to create your own
 applications.  The EVE source files are available online as examples
 of TPU programming and as a kind of run-time library of TPU
 procedures.  For a list of the EVE source files, use the following
 DCL command:

    $ DIRECTORY SYS$EXAMPLES:EVE$*.TPU