Zach Beane (xach) wrote,

Tilde for SBCL convenience

Every now and then I want to use leading tildes in SBCL pathnames. That is, something like this:

(probe-file "~/.emacs") =>
   #P"/home/xach/.emacs" 
OR #P"/Users/xach/.emacs"
OR #P"/usr/u/xach/.emacs"

I know about user-homedir-pathname, but it's not quite convenient for interactive REPL use.

So I put together a short file that patches SBCL internals slightly so leading tildes in pathnames go through the POSIX getpw interface to look up home directories. It's not something I'll ever use in source files, but it's pretty convenient interactively.

To use it yourself, just download tilde.lisp and add this to your ~/.sbclrc:

(load "/path/to/tilde.lisp")
(tilde:install-tilde-expander)

After that, you can use "~/foo" and "~bob/foo" in SBCL pathnames.

update Here's a git repo for tilde.lisp, with an ASDF system file too.

Tags: lisp
  • Post a new comment

    Error

    Anonymous comments are disabled in this journal

    default userpic

    Your reply will be screened

    Your IP address will be recorded  

  • 9 comments