1 ;;; autobm.el --- suggest bookmark name from local context -*- lexical-binding: t -*- |
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2 |
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3 (require 'cl-lib) |
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4 (require 'bookmark) |
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5 (require 'which-func) |
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6 (require 'semantic/find) |
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7 |
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8 (defvar autobm-mode-handlers |
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9 '((emacs-lisp-mode . (autobm-try-semantic)) |
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10 (semantic-decoration-mode . (autobm-try-semantic)) |
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11 (rst-mode . (autobm-try-word)) |
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12 (t . (autobm-try-which-func autobm-try-thingatpt))) |
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13 "Alist of handlers by mode. Key is a mojor or minor mode name, or `t' as fallback. |
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14 Value is a no-argument function or a list of such functions, |
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15 which returns string or `nil'.") |
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16 |
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17 (defun autobm-try-which-func () |
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18 (which-function)) |
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19 |
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20 (defvar autobm-try-thingatpt-things |
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21 '(symbol url email)) |
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22 |
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23 (defun autobm-try-thingatpt () |
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24 (cl-some #'thing-at-point autobm-try-thingatpt-things)) |
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25 |
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26 (defun autobm-try-word () |
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27 (thing-at-point 'word)) |
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28 |
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29 (defun autobm-try-line () |
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30 (let ( (line (thing-at-point 'line)) ) |
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31 (substring line 0 (min (1- (length line)) 30)))) |
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32 |
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33 (defun autobm-get-active-handlers () |
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34 (let ( h handlers (modes (list major-mode)) ) |
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35 (dolist (m minor-mode-list) |
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36 (when (and (boundp m) (symbol-value m)) |
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37 (push m modes))) |
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38 (push t modes) |
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39 (dolist (m modes) |
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40 (setq h (assoc m autobm-mode-handlers)) |
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41 (when h |
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42 (setq h (cdr h)) |
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43 (cond |
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44 ((symbolp h) |
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45 (push h handlers)) |
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46 ((listp h) |
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47 (setq handlers (append h handlers))) |
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48 (t (error "autobm-mode-handlers isn't a list or a symbol"))))) |
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49 handlers)) |
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50 |
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51 (defvar autobm-try-semantic-type-alist |
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52 '((variable . "var") |
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53 (function . "fn") |
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54 (type . "type"))) |
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55 |
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56 (defun autobm-try-semantic () |
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57 (let ( (tag (semantic-current-tag)) prefix ) |
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58 (when tag |
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59 (setq prefix (assoc (cadr tag) autobm-try-semantic-type-alist)) |
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60 (when prefix |
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61 (format "%s: %s" (cdr prefix) (car tag)))))) |
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62 |
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63 (defun autobm-suggest () |
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64 "Suggest bookmark name depending on buffer mode and local |
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65 context using `autobm-try-semantic-type-alist'. First checked major |
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66 mode then active minor modes." |
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67 (let ((result nil)) |
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68 (catch 'exit |
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69 (dolist (h (autobm-get-active-handlers)) |
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70 (when (setq result (funcall h)) |
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71 (throw 'exit result)))))) |
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72 |
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73 ;;;###autoload |
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74 (defun autobm (&optional no-overwrite) |
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75 (interactive "P") |
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76 (let ( (name (autobm-suggest)) ) |
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77 (when name |
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78 (setq name (read-string "Set bookmark: " name bookmark-minibuffer-read-name-map name))) |
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79 (bookmark-set name no-overwrite))) |
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80 |
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81 ;; (global-set-key (kbd "C-x r m") 'autobm) |
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82 |
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83 (provide 'autobm) |
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84 |
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