GNU Emacs is an editor well-known for its flexibility and high customization level; with Aquamacs, Mac users can benefit from all the features they have come to enjoy over the years from Emacs under a new, improved interface. All this is available as an open-source product which should make it even more appealing.
The application includes all that developers and programmers have come to expect from modern day editors: syntax highlighting for all the major programming languages like XML and C, code folding, built-in tabbed system, support for HTML and LaTeX, auto-complete (Code Sense), a choice of themes, export capabilities to HTML and PDF and much more.
Along with the standard Emacs set of features, Aquamacs adds spell checking for all opened documents, integration with clipboard operations, the freedom to define your own fonts and colors, as well as Unicode support.
Briefly, Aquamacs remains fully extensible, easily accessible for all its functions (thanks to the available shortcut keys) and an all-in-one programmer's / developer's editor.
v2.4 [Nov 7, 2011]
Added visual-basic-mode. Code by Fred White, Dave Love, Randolph Fritz and Vincent Belaiche.
Fix crash that could occur during start of Aquamacs (in x_set_frame_parameters) Reported by Will Morton, Barbara Shirtcliff, Enrico Rinaldi.
Support for fullscreen button in windows, available in Mac OS X 10.7 ``Lion''. As additional keyboard shortcut, Command-Control-F, is available.
Improved support for resizing frames in Mac OS X 10.7.
Load calculator (M-x calc) correctly even after saving calculator settings. Reported by Stefan Vollmar.
When deleting (killing) a whole line, the beginning space of a following line was deleted in `smart-spacing-mode'. This is no longer the case. Reported by James Thurgood and Robert Morelli.
When deleting several words in a row (killing them to append them to the kill ring), they are no longer added as run-in words in smart spacing mode. Spaces are addes where appropriate.
Drag&drop into windows showing eshell, shell and other comint-based buffers now inserts the full file name. Suggested by Jan Marius Hofert.
When expanding the load path (e.g., for library files) in directories such as Library/Application Support/Aquamacs Emacs, a file called .nosearch now prevents Aquamacs from adding the present and subordinate directories. (The previous .ignore file only worked at the topmost level. Reported by Nathaniel Cunningham.
Fixed issue that could lead to a crash when using Aquamacs as an editor (ODB standard) from certain other applications. Reported by Kevin Kirkup.
Fixed issue where the toolbar could not be permanently hidden or shown using the toolbar context menu. Reported by Richard Spence.
Python-Mode has been updated to version 6.0.2. Suggested by Gilles Lenfant.
Matlab-Mode has been updated to version 3.3.1. Suggested by Dennis Rosset.
