77 lines
2.9 KiB
EmacsLisp
77 lines
2.9 KiB
EmacsLisp
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;;; evil-collection-paren.el --- Bindings for `paren'. -*- lexical-binding: t -*-
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;; Copyright (C) 2017 James Nguyen
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;; Author: James Nguyen <james@jojojames.com>
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;; Maintainer: James Nguyen <james@jojojames.com>
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;; Pierre Neidhardt <ambrevar@gmail.com>
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;; URL: https://github.com/emacs-evil/evil-collection
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;; Version: 0.0.1
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;; Package-Requires: ((emacs "25.1"))
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;; Keywords: evil, emacs, tools
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;; This program is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with this program. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;;; Bindings for `paren'.
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;;; Code:
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(require 'paren)
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(require 'evil-collection)
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(defun evil-collection-paren-show-paren-function (f &rest args)
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"Integrate `show-paren-function' with `evil'."
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(if (not (bound-and-true-p evil-mode))
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(apply f args)
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(if (if (memq 'not evil-highlight-closing-paren-at-point-states)
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(memq evil-state evil-highlight-closing-paren-at-point-states)
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(not (memq evil-state evil-highlight-closing-paren-at-point-states)))
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(apply f args)
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(let ((pos (point)) syntax narrow)
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(setq pos
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(catch 'end
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(dotimes (var (1+ (* 2 evil-show-paren-range)))
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(if (zerop (mod var 2))
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(setq pos (+ pos var))
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(setq pos (- pos var)))
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(setq syntax (syntax-class (syntax-after pos)))
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(cond
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((eq syntax 4)
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(setq narrow pos)
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(throw 'end pos))
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((eq syntax 5)
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(throw 'end (1+ pos)))))))
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(if pos
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(save-excursion
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(goto-char pos)
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(save-restriction
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(when narrow
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(narrow-to-region narrow (point-max)))
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(apply f args)))
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;; prevent the preceding pair from being highlighted
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(dolist (ov '(show-paren--overlay
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show-paren--overlay-1
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show-paren-overlay
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show-paren-overlay-1))
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(let ((ov (and (boundp ov) (symbol-value ov))))
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(when (overlayp ov) (delete-overlay ov)))))))))
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(defun evil-collection-paren-setup ()
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"Set up `evil' bindings for `paren'."
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(advice-add 'show-paren-function
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:around 'evil-collection-paren-show-paren-function))
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(provide 'evil-collection-paren)
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;;; evil-collection-paren.el ends here
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