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Femto 2.18 27 March 2024

This version features a major refactoring of the Lisp related code, leading to a deviation from Tiny-Lisp. Since femto-lisp is already taken by a not-so-femto Lisp implementation we call this new dialect fLisp.

Major visible changes are:

  • Core Lisp functionality is now closer to Emacs Elisp and Common Lisp and less Scheme'ish.
  • Lisp defun's formerly compiled into the femto binary are moved out into the femto.lsp and stdlib.lsp startup file. These are not automatically loaded in batch mode.

fLisp counts with an initial test suite runnable from the makefile and the Lisp documentation has been complemented to cover all callable functions and factored out into its own file.

Some memory leaks and exceptions have been detected and fixed, both in Tiny-Lisp as in femto code.

Femto 2.17 08 December 2023

  • When the environment variable FEMTO_BATCH exists, femto runs in batch mode
  • When the environment variable FEMTO_DEBUG exists, femto writes some internal logging to debug.log
  • When the environment variable FEMTORC is set, femto interprets its value as the path to the init file and tries to load it instead of the default init_file.
  • A new primitive (signal 'error-symbol error-details) has been added. It throws an exception. The interface is built analogous to Elisp. It was just used for testing, but might be useful in the future anyway.

Femto 2.16 08 December 2023

  • code reformatted into K&R using 4 spaces for indents
  • version number bumped but no functional changes

Femto 2.15 25 November 2023

  • fixed compiler warnings

Femto 2.14 25 November 2023

  • introduced shell-exec and rewrote shell-command in lisp

Femto 2.13 23 November 2023

  • added info.lsp to support info screen, invoked by C-x h
  • made describe-bindings, describe-functions callable through lisp

Femto 2.12 22 November 2023

  • elegant command line argument handling past to lisp for processing - kudos and thanks to jorge-leon

Femto 2.11 23 August 2020

  • used the Atto solution for jumping to eof and redisplay

Femto 2.10 20 January 2018

  • fixed lnend() behavior at end of file

Femto 2.9 16 January 2018

  • fixed kill-to-eol, no longer starts to delete backwards if at end of file

Femto 2.8 15 January 2018

  • fixed registration of commands for use by esc-x execute-command. These are now held in a dynamic list which means new command created and bound to keys will get registered and be available to be called at the command line. All lisp extension packages have had code updated so that functions not longer have the () around the names.

Femto 2.7 13 January 2018

  • fixed display issue (jumping to eof and redisplay) when paging down or deleting lines on last screen of the file (issue present in Anthons Editor).

Femto 2.6 11 January 2018

  • fixed undo so that it handles replaced text
  • fixed creation of c-x ` key

Femto 2.5 10 Demember 2017

  • updated lisp function reference
  • retored kill-to-eol back to femto.rc, added grep.lsp
  • added (prompt) and (show_prompt), grep.lsp invoke with 'c-x g' and grep-next 'c-x `', added key definitions for "c-x a" to "c-x z"
  • Added rename-buffer, get-version-string, added dired.lsp
  • added shell-command, set-clipboard bufmenu.lsp restore clipboard on exit, added delete-next-word delete-previous-word
  • removed hltest.c from src directory, updated TODO.txt
  • added clear-message-line, forward-word, forward-page, backward-page, backward-word
  • added esc-.; some changes to femto.rc; started testfunc.lsp; started prompt.lsp; wrote list examples

Femto 2.4 7 December 2017

  • added (get-buffer-name) (string.ref) (string.trim), fixed bufmenu.lsp, removed c code for string_trim().

Femto 2.3 5 December 2017

  • added (save-buffer) (delete-buffer) (select-buffer) (search-forward) (search-backward) (find-file)

Femto 2.2 1 December 2017

  • added (delete-other-windows) (list-buffers) (split-window) (other-window) (get-clipboard) (get-buffer-count)

Femto 2.1 30 November 2017

  • added tiny_lisp support
  • added ability to configure keyboard using (set-key)
  • load femto.rc file

Femto 2.0 29 November 2017

  • brought up to date with FemtoEmacs undo, Atto highlighting, Atto UTF8 fixes
  • fix compile warning around stdup define _XOPEN_SOURCE 500
  • file headers changed to reference 'femto'
  • removed old undoset code
  • added undo functionality, set global_undo_mode = 1, so undo active by default
  • added Atto style basic syntax highlighting
  • added in atto fixes for UTF8, wide character display

Femto 1.8 12 April 2016

  • fixed UTF8 support so that it moves up and down lines, correctly maintaining column

Femto 1.7 22 August 2016

  • fixed bug when pasting any empty clipboard

Femto 1.6 21 August 2016

  • fixed defect with killbuffer when creating a new scratch buffer

Femto 1.5 20 June 2016

  • Added automatic matching of parenthesis {}() and []
  • Fixed bug where a new file created when file not found did not have a buffer created

Femto 1.4 13 June 2016

  • Initialised buffer name to empty string
  • Added basic colour scheme

Femto v1.3 12 June 2016

  • Fixed defect with paste command introduced in v1.1
  • Added messages on copy and cut to show how many bytes

Femto v1.2 3 June 2016

  • Added UTF8 support

Femto v1.1 31 May 2016

  • Added list-buffers C-x C-b
  • fixed problem of opening up multiple output windows
  • refactored paste. Paste now calls insert-string with contents of scrap

Femto v1.0 29 May 2016

  • Added filename completion (use TAB to complete)
  • Added shell-command (C-x @), output is read into a buffer