[elpa] externals/vertico 862ee77 2/2: Add vertico-ido.el extension

[ELPA Syncer]

branch: externals/vertico
commit 862ee777e14e4e3a78bd77b337f4fbcf6c537bcc
Author: Daniel Mendler <mail@daniel-mendler.de>
Commit: Daniel Mendler <mail@daniel-mendler.de>

    Add vertico-ido.el extension
---
 extensions/vertico-ido.el | 66 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 66 insertions(+)

diff --git a/extensions/vertico-ido.el b/extensions/vertico-ido.el
new file mode 100644
index 0000000..5b8aec8
--- /dev/null
+++ b/extensions/vertico-ido.el
@@ -0,0 +1,66 @@
+;;; vertico-ido.el --- Provide Ido-like commands for Vertico -*- 
lexical-binding: t -*-
+
+;; Copyright (C) 2021  Free Software Foundation, Inc.
+
+;; This file is part of GNU Emacs.
+
+;; This program is free software: you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;; This package is a Vertico extension, which provides Ido-like
+;; commands. The commands can be bound in the `vertico-map'.
+;;
+;; (define-key vertico-map "\r" #'vertico-ido-exit)
+;; (define-key vertico-map "\d" #'vertico-ido-delete)
+
+;;; Code:
+
+(require 'vertico)
+
+(defun vertico-ido--completing-file-p ()
+  "Return non-nil when completing file names."
+  (eq 'file
+      (completion-metadata-get
+       (completion-metadata
+        (buffer-substring (minibuffer-prompt-end)
+                          (max (minibuffer-prompt-end) (point)))
+        minibuffer-completion-table
+        minibuffer-completion-predicate)
+       'category)))
+
+;;;###autoload
+(defun vertico-ido-exit ()
+  "Exit completion with current candidate or insert directory."
+  (interactive)
+  (if (and (>= vertico--index 0)
+           (string-suffix-p "/" (vertico--candidate))
+           (vertico-ido--completing-file-p))
+      (vertico-insert)
+    (vertico-exit)))
+
+;;;###autoload
+(defun vertico-ido-delete ()
+  "Delete char before or go up directory for file cagetory selectrum buffers."
+  (interactive)
+  (if (and (eq (char-before) ?/)
+           (vertico-ido--completing-file-p))
+      (save-excursion
+        (goto-char (1- (point)))
+        (when (search-backward "/" (point-min) t)
+          (delete-region (1+ (point)) (point-max))))
+    (call-interactively 'backward-delete-char)))
+
+(provide 'vertico-ido)
+;;; vertico-ido.el ends here