Emacs, Markdown-mode, insert spaces in text links created by the "C-c C-l" command

The reference environment: Emacs, Markdown-mode, insert a link

This article applies to the following environment:

• Emacs: GNU Emacs 26.3 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.22.30) of 2019-12-03
• Markdown Mode: markdown-mode-20200622.20
• OS: Linux Ubuntu 20.4 LTS, Linux Fedora 32

The problem in a few words: You need to insert a link in a document written using Markdown-mode for Emacs and in the Link text you need to insert one or more spaces.

The following are the steps:

1. Activate the command C-c C-l
2. Insert the URL of a link and press Return
3. Insert text link with some spaces inside it … STOP!

You could notice that the minibuffer does not accept the spaces! You also get a “No match” advice.

Is there a bug? Have I made an error?

None of them.

It is a deliberate behavior of the plugin.

I recently opened a New Issue in jrblevin/markdown-mode and the solution was immediate.

The official assistance service solution

If you need to insert spaces in you Link text in Markdown-mode you can use C-q followed by space.

C-q runs the command quoted-insert (found in global-map), which is an interactive compiled Lisp function.

It reads the next input character and inserts it where you are typing.

If the next input character is a space it inserts a space in the minibuffer and you’ve solved the problem.

If you want to use just the space key in your keyboard you can set minibuffer-local-completion-map configuration in your .emacs file as below:

(defun my/markdown-mode-hook ()
  (define-key minibuffer-local-completion-map (kbd "SPC") 'self-insert-command))
  

Now you can directly digit text links with spaces inside the minibuffer.

Thank you to the jrblevin/markdown-mode Team for the solution.

Thank you for your attention.

Originally published at my Notebook