Some files are provided in this distribution and are known as
SmacLib. These files contain many functions built on the top of
the lower interface of the editor (see Built-in editor function
§4.9 page 
and Xcoral interface
§7 page ). These functions are C functions
interpreted by .
You can read them in the given files suffixed by .sc, for
instance cmd.sc and head.sc files. They are good examples
of and use. I encourage you to read, use and perhaps
adapt (correct ?) them.
These files are generally loaded and evaluated during start-up.
(see .xcoralrc file §5.1 page ).
XCORALRC and XCORAL_SMACLIB environment variables are
available at start-up to configure the editor.
XCORALRC is used to specify the path of the .xcoralrc
file (default is $HOME/.xcoralrc) and XCORAL_SMACLIB
the directory path where to find files (default
is the directory specified at compile time: see
XC_LIBDIR in Imakefile, typically /usr/local/lib/xcoral).