| commit | author | age | ||
| 5cb5f7 | 1 | ;;; smartparens-haskell.el --- Additional configuration for Haskell based modes. -*- lexical-binding: t; -*- |
| C | 2 | |
| 3 | ;; Copyright (C) 2015 Michael Xavier | |
| 4 | ||
| 5 | ;; Author: Michael Xavier <michael@michaelxavier.net> | |
| 6 | ;; Maintainer: Michael Xavier <michael@michaelxavier.net> | |
| 7 | ;; Created: 29 Apr 2016 | |
| 8 | ;; Keywords: abbrev convenience editing | |
| 9 | ;; URL: https://github.com/Fuco1/smartparens | |
| 10 | ||
| 11 | ;; This file is not part of GNU Emacs. | |
| 12 | ||
| 13 | ;;; License: | |
| 14 | ||
| 15 | ;; This file is part of Smartparens. | |
| 16 | ||
| 17 | ;; Smartparens is free software; you can redistribute it and/or modify | |
| 18 | ;; it under the terms of the GNU General Public License as published by | |
| 19 | ;; the Free Software Foundation, either version 3 of the License, or | |
| 20 | ;; (at your option) any later version. | |
| 21 | ||
| 22 | ;; Smartparens is distributed in the hope that it will be useful, | |
| 23 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 24 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 25 | ;; GNU General Public License for more details. | |
| 26 | ||
| 27 | ;; You should have received a copy of the GNU General Public License | |
| 28 | ;; along with Smartparens. If not, see <http://www.gnu.org/licenses/>. | |
| 29 | ||
| 30 | ;;; Commentary: | |
| 31 | ||
| 32 | ;; This file provides some additional configuration for Haskell based | |
| 33 | ;; modes. To use it, simply add: | |
| 34 | ;; | |
| 35 | ;; (require 'smartparens-haskell) | |
| 36 | ;; | |
| 37 | ;; into your configuration. You can use this in conjunction with the | |
| 38 | ;; default config or your own configuration. | |
| 39 | ||
| 40 | ;; If you have good ideas about what should be added please file an | |
| 41 | ;; issue on the github tracker. | |
| 42 | ||
| 43 | ;; For more info, see github readme at | |
| 44 | ;; https://github.com/Fuco1/smartparens | |
| 45 | ||
| 46 | ;;; Code: | |
| 47 | (require 'smartparens) | |
| 48 | ||
| 49 | (defun sp-haskell-skip-apostrophe (_ms mb _me) | |
| 50 | (save-excursion | |
| 51 | ;; We test the syntax class because haskell mode overrides | |
| 52 | ;; the class for ' on the fly when it run the syntax pass of | |
| 53 | ;; font-lock... so that if '' is a valid string (char) it | |
| 54 | ;; gets an override via 'syntax-table property. In which | |
| 55 | ;; case we just agree with haskell mode and let it be used as | |
| 56 | ;; a pair. | |
| 57 | (not (eq (syntax-class (syntax-after mb)) 7)))) | |
| 58 | ||
| 59 | (defun sp-haskell-strict-ignore-apostrophe-after-word (_id action _context) | |
| 60 | "Ignore trailing ' when navigating. | |
| 61 | ||
| 62 | Because ' in haskell is symbol class it gets picked up as part of | |
| 63 | a words such as myFunction', and then strict mode won't allow us | |
| 64 | to delete it. Also show-smartparens-mode incorrectly highlights | |
| 65 | it as missing an opener. | |
| 66 | ||
| 67 | So we ignore that pair when at the end of word." | |
| 68 | (when (eq action 'navigate) | |
| 69 | (sp--looking-back-p (concat "\\(\\sw\\|\\s_\\)'+")))) | |
| 70 | ||
| 71 | (sp-with-modes '(haskell-mode haskell-interactive-mode) | |
| 72 | (sp-local-pair "{-" "-}") | |
| 73 | (sp-local-pair "{-#" "#-}") | |
| 74 | (sp-local-pair "{-@" "@-}") | |
| 75 | (sp-local-pair "'" nil | |
| 76 | :unless '(sp-point-after-word-p | |
| 77 | sp-haskell-strict-ignore-apostrophe-after-word) | |
| 78 | :skip-match 'sp-haskell-skip-apostrophe) | |
| 79 | (sp-local-pair "\\(" nil :actions nil)) | |
| 80 | ||
| 81 | (defun sp--inferior-haskell-mode-backward-bound-fn () | |
| 82 | "Limit the backward search to the prompt if point is on prompt." | |
| 83 | (-when-let (limit (cond ((bound-and-true-p comint-last-prompt) | |
| 84 | (marker-position (cdr comint-last-prompt))) | |
| 85 | ((bound-and-true-p comint-last-prompt-overlay) | |
| 86 | (overlay-end comint-last-prompt-overlay)) | |
| 87 | (t nil))) | |
| 88 | (and (> (point) limit) limit))) | |
| 89 | ||
| 90 | (defun sp--inferior-haskell-mode-forward-bound-fn () | |
| 91 | "Limit the forward search to exclude the prompt if point is before prompt." | |
| 92 | (-when-let (limit (cond ((bound-and-true-p comint-last-prompt) | |
| 93 | (marker-position (car comint-last-prompt))) | |
| 94 | ((bound-and-true-p comint-last-prompt-overlay) | |
| 95 | (overlay-start comint-last-prompt-overlay)) | |
| 96 | (t nil))) | |
| 97 | (and (< (point) limit) limit))) | |
| 98 | ||
| 99 | (defun sp--setup-inferior-haskell-mode-search-bounds () | |
| 100 | "Setup the search bound. | |
| 101 | ||
| 102 | If the point is after the last prompt, limit the backward search | |
| 103 | only for the propmt. | |
| 104 | ||
| 105 | If the point is before the last prompt, limit the forward search up until the prompt start." | |
| 106 | (setq sp-forward-bound-fn 'sp--inferior-haskell-mode-forward-bound-fn) | |
| 107 | (setq sp-backward-bound-fn 'sp--inferior-haskell-mode-backward-bound-fn)) | |
| 108 | ||
| 109 | (add-hook 'inferior-haskell-mode-hook 'sp--setup-inferior-haskell-mode-search-bounds) | |
| 110 | ||
| 111 | (provide 'smartparens-haskell) | |
| 112 | ||
| 113 | ;;; smartparens-haskell.el ends here | |
