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| ;;; rg-header.el --- Header for rg mode -*- lexical-binding: t; -*- | ||
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| ;; Copyright (C) 2017 David Landell <david.landell@sunnyhill.email> | ||
| ;; | ||
| ;; Author: David Landell <david.landell@sunnyhill.email> | ||
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| ;; This file is not part of GNU Emacs. | ||
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| ;; 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. | ||
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| ;; 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. | ||
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| ;; You should have received a copy of the GNU General Public License | ||
| ;; along with this program; if not, write to the Free Software | ||
| ;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA | ||
| ;; 02110-1301, USA. | ||
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| ;;; Commentary: | ||
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| ;;; Code: | ||
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| (defcustom rg-show-header t | ||
| "Show header in results buffer if non nil." | ||
| :type 'boolean | ||
| :group 'rg) | ||
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| (defface rg-toggle-on-face | ||
| '((t :inherit rg-file-tag-face)) | ||
| "face for toggle 'on' text in header." | ||
| :group 'rg-face) | ||
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| (defface rg-toggle-off-face | ||
| '((t :inherit rg-error-face)) | ||
| "face for toggle 'off' text in header." | ||
| :group 'rg-face) | ||
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| (defface rg-literal-face | ||
| '((t :inherit rg-filename-face)) | ||
| "face for literal label in header." | ||
| :group 'rg-face) | ||
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| (defface rg-regexp-face | ||
| '((t :inherit compilation-line-number)) | ||
| "face for regexp label in header." | ||
| :group 'rg-face) | ||
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| (defvar rg-last-search) | ||
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| (defun rg-header-render-label (labelform) | ||
| "Return a fontified header label. | ||
| LABELFORM is either a string to render or a form where the `car' is a | ||
| conditional and the two following items are then and else specs. | ||
| Specs are lists where the the `car' is the labels string and the | ||
| `cadr' is font to use for that string." | ||
| (list '(:propertize "[" font-lock-face (header-line bold)) | ||
| (cond | ||
| ((stringp labelform) | ||
| `(:propertize ,labelform font-lock-face (header-line bold))) | ||
| ((listp labelform) | ||
| (let* ((condition (nth 0 labelform)) | ||
| (then (nth 1 labelform)) | ||
| (else (nth 2 labelform))) | ||
| `(,condition | ||
| (:propertize ,(nth 0 then) font-lock-face (,(nth 1 then) header-line bold)) | ||
| (:propertize ,(nth 0 else) font-lock-face (,(nth 1 else) header-line bold))))) | ||
| (t (error "Not a string or list"))) | ||
| '(:propertize "]" font-lock-face (header-line bold)) | ||
| '(": "))) | ||
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| (defun rg-header-render-toggle (on) | ||
| "Return a fontified toggle symbol. | ||
| If ON is non nil, render \"on\" string, otherwise render \"off\" | ||
| string." | ||
| `(:eval (let* ((on ,on) | ||
| (value (if on "on " "off")) | ||
| (face (if on 'rg-toggle-on-face 'rg-toggle-off-face))) | ||
| (propertize value 'font-lock-face `(bold ,face))))) | ||
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| (defun rg-create-header-line () | ||
| "Create the header line if `rg-show-header' is enabled." | ||
| (when rg-show-header | ||
| (let ((itemspace " ")) | ||
| (setq header-line-format | ||
| (if (null rg-last-search) | ||
| (list | ||
| (rg-header-render-label "command line") | ||
| "no refinement") | ||
| (list | ||
| (rg-header-render-label '(rg-literal ("literal" rg-literal-face) | ||
| ("regexp" rg-regexp-face))) | ||
| '(:eval (nth 0 rg-last-search)) itemspace | ||
| (rg-header-render-label "files") | ||
| '(:eval (nth 1 rg-last-search)) itemspace | ||
| (rg-header-render-label "case") | ||
| (rg-header-render-toggle | ||
| '(not (member "-i" rg-toggle-command-line-flags))) itemspace | ||
| (rg-header-render-label "ign") | ||
| (rg-header-render-toggle | ||
| '(not (member "--no-ignore" rg-toggle-command-line-flags))) itemspace | ||
| (rg-header-render-label "hits") | ||
| '(:eval (format "%d" rg-hit-count)))))))) | ||
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| (provide 'rg-header) | ||
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| ;;; rg-header.el ends here |
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