Pushed to pdo/axiom-environment
5d6b2cd Added ``Emacs Customizations'' menu item.
AN AXIOM ENVIRONMENT FOR EMACS ============================== The ``axiom-environment'' package is intended to make it easier to work with, and understand, the Axiom, OpenAxiom and FriCAS computer algebra systems. It implements four different major modes for the Emacs text editor: 1. axiom-process-mode: for interaction with a running Axiom process. 2. axiom-help-mode: for displaying help information about the Axiom system. 3. axiom-input-mode: for editing a .input (Axiom script) file. 4. axiom-spad-mode: for editing Axiom library code written in the SPAD language. The main features of these modes (so far) are syntax highlighting to display package, domain & category names (and their abbreviations) in distinct colours, and to give quick access to popup buffers displaying summary information about these types and their operations. The syntax highlighting feature allows to see at a glance which aspect of the type system we are concerned with (domains or categories), and the popup buffer feature allows to examine (and re-examine) these types without interupting the workflow (i.e. interaction in the Axiom REPL). Hint: to make a popup help buffer go away, press ``q'', emacs's window configuration will be restored to what it was before the help window appeared and the help buffer will be buried in the buffer list. The ``ob-axiom'' package is an org-babel extension that integrates the axiom-environment into org-mode, allowing a literate development & presentation style with easy publishing to HTML, PDF, etc. The ``company-axiom'' package is a company-mode backend for symbol completion in the company framework. INSTALLATION ============ The easiest way to install axiom-environment (and optionally the ob-axiom and company-axiom packages) is via MELPA, the Emacs lisp package server. First ensure that you have access to the MELPA package repository (by putting the following in your .emacs file if it's not there already):- (require 'package) (add-to-list 'package-archives '("melpa" . "http://melpa.org/packages/") t) then simply do M-x list-packages and select and install the axiom-environment and possibly ob-axiom and company-axiom packages. Alternatively, if you don't want to use MELPA, you can clone the axiom-environment git repository (hosted at bitbucket.org) into your directory of choice: cd /my/directory/of/choice git clone http://bitbucket.org/pdo/axiom-environment then add the following line to your .emacs file: (load-file "/my/directory/of/choice/axiom-environment/axiom.el") This will load the axiom-environment, ob-axiom and company-axiom systems directly. Either way you install it, this will allow Emacs to automatically put .spad and .input files into ``Axiom SPAD'' and ``Axiom Input'' modes, respectively, and give access to the ``Axiom'' menu in these modes. See the menu for shortcuts to the helper commands. Also available is the ``Axiom Selector'' function, to give quick access to Axiom buffers. This is most useful when bound to a key sequence that is accessible from any buffer. For example (global-set-key (kbd "C-c a") 'axiom-selector) in your .emacs file will do nicely. Then you can do `C-c a ?' to bring up a summary of selector commands. Highlights include `C-c a r' to switch to the Axiom REPL buffer, and 'C-c a a' to bring up a buffer listing all available Axiom buffers and allowing you to select one to switch to, or display in another window. Type `?' or the usual `C-h m' to bring up a summary of Axiom Buffer Menu mode's commands. To start an interactive Axiom session do: M-x run-axiom Note that by default this will attempt to start the FriCAS program (with command "fricas -nosman"), but that this can be changed using an Emacs customization variable. In fact many customization variables exist, for different aspects of the environment, under the ``Axiom'' customization group. Likely candidates you will want to change include:- axiom-process-program axiom-process-spad-source-dirs An easy way of managing arbitrary collections of customization variables is available via the Emacs ``theme'' mechanism. Example themes showing how to setup the environment to work with FriCAS or OpenAxiom on SBCL, and Axiom on GCL, are included in the ``themes'' subdirectory of the axiom-environment package. REQUIREMENTS ============ Please note that development of this software started with Emacs 24.2 and it is quite likely that it won't work with earlier versions. BUGS ==== Testing so far has been with Axiom, OpenAxiom and FriCAS running on macOS and Linux (with OpenAxiom and FriCAS built with SBCL). It should of course run on other OSes too. It should be noted that most development work is done with FriCAS, so this is likely to give the least problematic user experience. Please send bug reports to: Paul Onions <email@example.com> or click on the issue tracker tab at: http://bitbucket.org/pdo/axiom-environment/ and enter the details there. -- Paul Onions 22 October 2017