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Emacs minibuffer termination

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[系统(linux) 所属分类 系统(linux) | 发布者 店小二04 | 时间 2019 | 作者 红领巾 ] 0人收藏点击收藏

I have a function that launches programs asynchronously:

(defun app (app-name) (interactive "sRun application: ") (async-shell-command app-name))

And i have a list of all executables from which to choose. I want the app function to behave as switch-to-buffer , providing TAB-completion for user. How do i use minibuffer completion in Emacs?

Use completing-read command. The function will look like

(defun app () (interactive) (let ((app-name (completing-read "Run application: " program-list))) (async-shell-command app-name)))

Possibly more idiomatic is to use interactive instead of assigning to a variable according to Emacs Lisp Idioms: Prompting for User Input :

(defun app (app-name) (interactive (list (completing-read "Run application: " app-list))) (async-shell-command app-name))

Also you can use (start-process app-name nil app-name) instead of (async-shell-command app-name) , if you don't care for process output according to Run a program from Emacs and don't wait for output.

See Minibuffer Completion for more ideas on completion in Emacs and Asynchronous Processes for calling processes from Emacs, both from GNU manuals.

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