code.delx.au - gnu-emacs-elpa/blob - packages/swiper/counsel.el

   1 ;;; consel.el --- Elisp completion at point -*- lexical-binding: t -*-
   2
   3 ;; Copyright (C) 2015  Free Software Foundation, Inc.
   4
   5 ;; Author: Oleh Krehel <ohwoeowho@gmail.com>
   6
   7 ;; This file is part of GNU Emacs.
   8
   9 ;; This file is free software; you can redistribute it and/or modify
  10 ;; it under the terms of the GNU General Public License as published by
  11 ;; the Free Software Foundation; either version 3, or (at your option)
  12 ;; any later version.
  13
  14 ;; This program is distributed in the hope that it will be useful,
  15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 ;; GNU General Public License for more details.
  18
  19 ;; For a full copy of the GNU General Public License
  20 ;; see <http://www.gnu.org/licenses/>.
  21
  22 ;;; Commentary:
  23 ;;
  24 ;; Just call `counsel' to start completing the `obarray'.
  25 ;; The initial (optional) input is thing-at-point.
  26
  27 ;;; Code:
  28
  29 (require 'ivy)
  30
  31 (defun counsel ()
  32   "Elisp completion at point."
  33   (interactive)
  34   (counsel--generic
  35    (lambda (str) (all-completions str obarray))))
  36
  37 (defun couns-clj ()
  38   "Clojure completion at point."
  39   (interactive)
  40   (counsel--generic
  41    (lambda (str)
  42      (mapcar
  43       #'cl-caddr
  44       (cider-sync-request:complete str ":same")))))
  45
  46 (defun couns-git ()
  47   "Find file in the current Git repository."
  48   (interactive)
  49   (let* ((default-directory (locate-dominating-file
  50                              default-directory ".git"))
  51          (cands (split-string
  52                  (shell-command-to-string
  53                   "git ls-files --full-name --")
  54                  "\n"))
  55          (file (ivy-read "Find file: " cands)))
  56     (when file
  57       (find-file file))))
  58
  59 (defun counsel--generic (completion-fn)
  60   "Complete thing at point with COMPLETION-FN."
  61   (let* ((bnd (bounds-of-thing-at-point 'symbol))
  62          (str (if bnd
  63                   (buffer-substring-no-properties
  64                    (car bnd) (cdr bnd))
  65                 ""))
  66          (candidates (funcall completion-fn str))
  67          (ivy-height 7)
  68          (res (ivy-read (format "pattern (%s): " str)
  69                         candidates)))
  70     (when (stringp res)
  71       (when bnd
  72         (delete-region (car bnd) (cdr bnd)))
  73       (insert res))))
  74
  75 (provide 'counsel)
  76
  77 ;;; counsel.el ends here