1.2

[1.2.0] 2019-08-20

After nearly a year without updates, Funlisp v1.2.0 is released! This release
brings several new language features and API additions. On top of that, I've
moved the main development Git host to
Sourcehut, although the GitHub
repository will continue to act as a mirror. Releases will still have to be
found on GitHub, since Sourcehut does not have a suitable system for that yet.

In a similar vein, we now have a mailing list,
~brenns10/funlisp-dev@lists.sr.ht. This will contain version announcements,
and any patches are welcome to be submitted there! For docs on using the list,
see Sourcehut manual. TLDR:

• Email ~brenns10/funlisp-dev+subscribe@lists.sr.ht with any subject/content
  in order to subscribe.
• Email ~brenns10/funlisp-dev+unsubscribe@lists.sr.ht to unsubscribe.

You may notice some test posts on the list -- no more will be posted, so it is
safe to subscribe if you're interested. You need not be a member of Sourcehut
to use the list, submit patches, or browse the repository.

Added

• let statement for binding names to values. Sample usage:

  (define sum-of-squares (lambda (x y)
    (let ((x_sq (* x x))
          (y_sq (* y y)))
         (+ x_sq y_sq))))
  
  (sum-of-squares 3 4)
  -> 25
  

• cond statement for multi-case conditionals. Sample usage:

  (define get-maintainer (lambda (file)
    (cond
      ((eq? file "Makefile") "Stephen")
      ((eq? file "inc/funlisp.h") "Stephen")
      (1 "Stephen"))))
  

• Documentation for the macro statement which existed in 1.1 is now present on
  the documentation site + manual page.

• Modules!

  • Use (import module) to either load the builtin "module" or read
    "module.lisp" and access its defined symbols.

  • C API for creating builtin modules exists, and is documented.

  • First module, os, containing getenv function, is created. I have not yet
    figured out a solid standard library documentation system, so consider the
    builtin modules and their functions to be provisional.

    (import os)
    (os.getenv "HOME")
    -> "/home/stephen"

Fixed

• macro construct was incorrectly evaluating its arguments prior to execution.
  This change is breaking, but since it reflects major incorrect behavior, it
  will be released in a minor version bump.