Homepage: https://github.com/dykstrom/basic-mode
Author: Johan Dykstrom
Updated:
Major mode for editing BASIC code
This package provides a major mode for editing BASIC code. Features include syntax highlighting and indentation, as well as support for auto-numbering and renumering of code lines. The base mode provides basic functionality and is normally only used to derive sub modes for different BASIC dialects, see for example `basic-generic-mode'. For a list of available sub modes, please see https://github.com/dykstrom/basic-mode, or the end of the source code file. By default, basic-mode will open BASIC files in the generic sub mode. To change this, you can use a file variable, or associate BASIC files with another sub mode in `auto-mode-alist'. You can format the region, or the entire buffer, by typing C-c C-f. When line numbers are turned on, hitting the return key will insert a new line starting with a fresh line number. Typing C-c C-r will renumber all lines in the region, or the entire buffer, including any jumps in the code. Type M-. to lookup the definition of the identifier at point, and type M-, to go back again. See also function `xref-find-definitions'. Installation: The recommended way to install basic-mode is from MELPA, please see https://melpa.org. To install manually, place basic-mode.el in your load-path, and add the following lines of code to your init file: (autoload 'basic-generic-mode "basic-mode" "Major mode for editing BASIC code." t) (add-to-list 'auto-mode-alist '("\\.bas\\'" . basic-generic-mode)) Configuration: You can customize the indentation of code blocks, see variable `basic-indent-offset'. The default value is 4. Formatting is also affected by the customizable variables `basic-delete-trailing-whitespace' and `delete-trailing-lines' (from simple.el). You can also customize the number of columns to allocate for line numbers using the variable `basic-line-number-cols'. The default value of 0 (no space reserved), is appropriate for programs with no line numbers and for left aligned numbering. Use a positive integer, such as 6, if you prefer right alignment. The other line number features can be configured by customizing the variables `basic-auto-number', `basic-renumber-increment' and `basic-renumber-unnumbered-lines'. Whether syntax highlighting requires separators between keywords can be customized with variable `basic-syntax-highlighting-require-separator'.