Each buffer has a package associated with it, known as the primary package. This is set when the buffer is created, and is displayed in the message area at the bottom of the Editor window. The primary package provides a default, used when the current package cannot be determined by other means.
If the buffer is created by opening a file containing an
in-package
form, that package is the primary package. If there are multiple
in-package
forms, the primary package is taken from the first of these forms. If there is no
in-package
form, the primary package is
CL-USER
.
You can set the primary package if needed with the editor command
Set Buffer Package
. See the
LispWorks Editor User Guide
for details.
LispWorks IDE User Guide (Macintosh version) - 25 Nov 2011