HFS Grep
Volume Number: 3
Issue Number: 1
Column Tag: Neon News
HFS Grep & Scrollers in Neon
By Jörg Langowski, MacTutor Editorial Board, Grenoble, France
HFS Tiny Grep Utility in NEON 2.0
We'll have a NEON column again after a long pause; just recently I received a beta
copy of NEON's version 2.0 (already mentioned in the last column). NEON 2.0 is the
long-awaited HFS compatible upgrade, with a lot of changes in the file class definitions
and the introduction of a new class, pathlist. With this class, HFS search paths may be
defined which are then scanned by the NEON system when files are accessed. Usually,
you set up the default search paths in a text file which is kept in the NEON folder and
read automatically at startup. If you've set the path names to the appropriate disk and
folder names that you are using in your particular development system, the HFS tree
search along the path list becomes completely transparent. You may then, for all
practical circumstances, regard the collection of folders defined by the search path
names as one contiguous MFS volume. With one important difference: pathlist is a
subclass of ordered-col, and new search paths may be added to or removed from the list
by sending add: or remove:. This can occur during the execution of a program, so you
may dynamically change search paths as your application requires.
Applications written in NEON 2.0 can be installed as one single file, putting the
kernel and the dictionary together (which were separate in earlier versions).