Re: Feedback on fido-mode

[Dmitry Gutov <dgutov@yandex.ru>]

On 09.03.2020 19:14, João Távora wrote:

> Thanks. I've now skimmed the list and many of the complaints don't
> seem to have an obvious "fix" in fido-mode or even in Emacs itself,
> so unless more concrete problems appear, it's unlikely that I will be
> changing anything.

Defining named vars for styles config in fido-mode could make it easier 
to tweak, like Adam tried to do in step 5. Patch below for your 
consideration.

That's admittedly a half-measure since the 'substring' style is strictly 
less powerful than 'flex'. And we can't really use spaces for wildcards, 
so it still won't be as easy to use as Ivy or Helm.

Tweaking the 'flex' style to prefer consecutive matches more strongly 
could also improve the experience in this particular scenario, although 
I'm not sure it would be the best choice overall.

diff --git a/lisp/icomplete.el b/lisp/icomplete.el
index 66bc731f67..490bf31cb0 100644
--- a/lisp/icomplete.el
+++ b/lisp/icomplete.el
@@ -320,6 +320,14 @@ icomplete-fido-mode-map
      map)
    "Keymap used by `fido-mode' in the minibuffer.")

+(defcustom icomplete-fido-completion-styles '(flex)
+  "Completion styles used by `fido-mode' in the minibuffer."
+  :type 'list)
+
+(defcustom icomplete-fido-category-defaults nil
+  "Values to use for `completion-category-defaults' in `fido-mode'."
+  :type 'list)
+
  (defun icomplete--fido-mode-setup ()
    "Setup `fido-mode''s minibuffer."
    (when (and icomplete-mode (icomplete-simple-completing-p))
@@ -328,8 +336,8 @@ icomplete--fido-mode-setup
      (setq-local icomplete-tidy-shadowed-file-names t
                  icomplete-show-matches-on-no-input t
                  icomplete-hide-common-prefix nil
-                completion-styles '(flex)
-                completion-category-defaults nil)))
+                completion-styles icomplete-fido-completion-styles
+                completion-category-defaults 
icomplete-fido-category-defaults)))

  ;;;###autoload
  (define-minor-mode fido-mode