Ymacs – Emacs for Your FireFox Web Browser Edit Code Inside Browser
Ymacs is a javascript based code editor that works entirely in browser to mimic Emacs code editor , with several features to boast of, including syntax highlighting theming support, Important shortcut keys of Emacs are already covered and If you are getting curious about it . Just check it out here at YMacs Demo
A screenshot of YMacs at work, I changed the background to light and also font size was increased.
Features of Emacs that Ymacs covers are,
Ymacs currently can do the following (and I think it worths its name):
- Emacs-like movement keys:
- by character (ARROW_RIGHT, ARROW_LEFT, C-f, C-b)
- by line (ARROW_UP, ARROW_DOWN, C-n, C-p)
- by word (C-ARROW_RIGHT, C-ARROW_LEFT, M-f, M-b)
- by paragraph (C-ARROW_UP, C-ARROW_DOWN)
- even by balanced expressions in some modes (C-M-f, C-M-b, C-M-n, C-M-p)
(but this is really slow currently)- beginning of buffer (C-HOME, M-<)
- end of buffer (C-END, M->)
- Emacs-like text manipulation commands:
- transpose chars (C-t)
- transpose words (M-t)
- transpose lines (C-x C-t)
- upcase word (M-u)
- downcase word (M-l)
- capitalize word (M-c)
- center line (M-s)
- word killing (M-d, M-DELETE, C-BACKSPACE)
- dabbrev-expand (M-/) — autocomplete the word at point
- text filling (M-q)
- Emacs-like editing modes (currently JavaScript, XML, Lisp and Markdown):
- modes can provide custom keymaps
- and syntax highlighting
- and automatic indentation
- highlighting matching parentheses
- And other features implemented in a very Emacs-like fashion:
- undo queue
- mark, kill ring and transient mark
- minibuffer and mode line
- interactive search
- multiple buffers
- split frames (C-x 2 or C-x 3 to split frame, C-x 1 to delete-other-frames)
- prefix keys, keymaps
- markers, overlays and text properties
It relies on Ajax and is truly a wonderful example of superior abilities of Ajax, It is created by Mihai Bazon and He is also interested to enhance this Ajax utility and if you are interested in being a developer or for more details just visit the official home page at Ymacs
