clog/MACOS.md

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## Installing Common Lisp + Emacs + Slime on MacOS (all platforms)
1. Install Emacs for Mac OS from - https://emacsformacosx.com/
2. [optional] Add Emacs to your system's path by creating a
file /etc/paths.d/emacs with:
```
/Applications/Emacs.app/Contents/MacOS
```
3. Install Homebrew - https://brew.sh/
```
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
```
4. Install a Common Lisp compiler, ie. sbcl
```
brew install sbcl
```
5. Install QuickLisp
```
curl -o /tmp/ql.lisp http://beta.quicklisp.org/quicklisp.lisp
sbcl --no-sysinit --no-userinit --load /tmp/ql.lisp \
--eval '(quicklisp-quickstart:install :path "~/.quicklisp")' \
--eval '(ql:add-to-init-file)' \
--quit
```
6. Install Slime
```
sbcl --eval '(ql:quickload :quicklisp-slime-helper)' --quit
```
7. Modify or create ~/.emacs.d/init.el with the lines
```
(load (expand-file-name "~/.quicklisp/slime-helper.el"))
(setq inferior-lisp-program "sbcl")
```
8. You can now start emacs graphically or if did option 2 from terminal
using emacs (and if desire terminal version use emacs -nw) and then use M-x slime
9. Install using slime CLOG:
```
(ql:quickload :clog)
(clog:run-demo 1)
```
Tip: If use emacs graphically, you may find it easier to set the
apple command key to also act as a Meta key:
```
(setf ns-command-modifier 'meta)
;; Since we map command to meta let meta ` switch frames
(global-set-key "\M-`" 'other-frame)
```
Tip: If using emacs in the terminal (ie emacs -nw) in terminal
preferances under profiles and under the default profile choose "Use
Option as Meta". I also add the following to my ~/.emacs.d/init.el:
```
;; Selecting with mouse is an emacs selection
(xterm-mouse-mode t)
;; Fix mouse wheel under xterm-mouse-mode
(global-set-key (kbd "<mouse-4>") (kbd "C-p"))
(global-set-key (kbd "<mouse-5>") (kbd "C-n"))
```
- [Learn about CLOG](README.md)
- [Learn Common-Lisp](LEARN.md)