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5fcb34d @technomancy initial commit
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1 ;;; starter-kit-defuns.el --- Define some custom functions
2 ;;
3 ;; Part of the Emacs Starter Kit
4
5 (require 'thingatpt)
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6 (require 'imenu)
7
8 ;; Network
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9
10 (defun view-url ()
11 "Open a new buffer containing the contents of URL."
12 (interactive)
13 (let* ((default (thing-at-point-url-at-point))
14 (url (read-from-minibuffer "URL: " default)))
15 (switch-to-buffer (url-retrieve-synchronously url))
16 (rename-buffer url t)
17 ;; TODO: switch to nxml/nxhtml mode
18 (cond ((search-forward "<?xml" nil t) (xml-mode))
19 ((search-forward "<html" nil t) (html-mode)))))
20
21 ;; Buffer-related
22
d7bdec6 @technomancy Rename some functions; remove mention of nxhtml until it's in ELPA.
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23 (defun ido-imenu ()
7408e2b @nonsequitur Make ido-imenu recognize the symbol at point.
nonsequitur authored
24 "Update the imenu index and then use ido to select a symbol to navigate to.
25 Symbols matching the text at point are put first in the completion list."
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26 (interactive)
27 (imenu--make-index-alist)
28 (let ((name-and-pos '())
29 (symbol-names '()))
30 (flet ((addsymbols (symbol-list)
31 (when (listp symbol-list)
32 (dolist (symbol symbol-list)
33 (let ((name nil) (position nil))
34 (cond
35 ((and (listp symbol) (imenu--subalist-p symbol))
36 (addsymbols symbol))
37
38 ((listp symbol)
39 (setq name (car symbol))
40 (setq position (cdr symbol)))
41
42 ((stringp symbol)
43 (setq name symbol)
44 (setq position (get-text-property 1 'org-imenu-marker symbol))))
45
46 (unless (or (null position) (null name))
47 (add-to-list 'symbol-names name)
48 (add-to-list 'name-and-pos (cons name position))))))))
49 (addsymbols imenu--index-alist))
7408e2b @nonsequitur Make ido-imenu recognize the symbol at point.
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50 ;; If there are matching symbols at point, put them at the beginning of `symbol-names'.
51 (let ((symbol-at-point (thing-at-point 'symbol)))
52 (when symbol-at-point
53 (let* ((regexp (concat (regexp-quote symbol-at-point) "$"))
54 (matching-symbols (delq nil (mapcar (lambda (symbol)
55 (if (string-match regexp symbol) symbol))
56 symbol-names))))
57 (when matching-symbols
58 (sort matching-symbols (lambda (a b) (> (length a) (length b))))
59 (mapc (lambda (symbol) (setq symbol-names (cons symbol (delete symbol symbol-names))))
60 matching-symbols)))))
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61 (let* ((selected-symbol (ido-completing-read "Symbol? " symbol-names))
62 (position (cdr (assoc selected-symbol name-and-pos))))
63 (goto-char position))))
64
b2ffdf1 @technomancy Make coding-hook a real hook instead of a defun.
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65 ;;; These belong in coding-hook:
66
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67 ;; We have a number of turn-on-* functions since it's advised that lambda
68 ;; functions not go in hooks. Repeatedly evaling an add-to-list with a
69 ;; hook value will repeatedly add it since there's no way to ensure
70 ;; that a lambda doesn't already exist in the list.
71
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72 (defun local-column-number-mode ()
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73 (make-local-variable 'column-number-mode)
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74 (column-number-mode t))
75
76 (defun local-comment-auto-fill ()
77 (set (make-local-variable 'comment-auto-fill-only-comments) t)
78 (auto-fill-mode t))
79
80 (defun turn-on-hl-line-mode ()
81 (if window-system (hl-line-mode t)))
82
83 (defun turn-on-save-place-mode ()
84 (setq save-place t))
85
a4a57d5 @technomancy Add a whitespace-mode function.
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86 (defun turn-on-whitespace ()
87 (whitespace-mode t))
88
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89 (defun turn-off-tool-bar ()
90 (tool-bar-mode -1))
91
b2ffdf1 @technomancy Make coding-hook a real hook instead of a defun.
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92 (add-hook 'coding-hook 'local-column-number-mode)
93 (add-hook 'coding-hook 'local-comment-auto-fill)
94 (add-hook 'coding-hook 'turn-on-hl-line-mode)
95 (add-hook 'coding-hook 'pretty-lambdas)
96
97 (defun run-coding-hook ()
98 "Enable things that are convenient across all coding buffers."
f5a0b03 @technomancy Fix typo in running coding hook.
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99 (run-hooks 'coding-hook))
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100
101 (defun untabify-buffer ()
102 (interactive)
103 (untabify (point-min) (point-max)))
104
105 (defun indent-buffer ()
106 (interactive)
107 (indent-region (point-min) (point-max)))
108
1f6f58b @technomancy Extracted cleanup buffer function.
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109 (defun cleanup-buffer ()
110 "Perform a bunch of operations on the whitespace content of a buffer."
111 (interactive)
112 (indent-buffer)
113 (untabify-buffer)
114 (delete-trailing-whitespace))
115
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116 (defun recentf-ido-find-file ()
117 "Find a recent file using ido."
118 (interactive)
119 (let ((file (ido-completing-read "Choose recent file: " recentf-list nil t)))
120 (when file
121 (find-file file))))
122
123 ;; Cosmetic
124
125 (defun pretty-lambdas ()
126 (font-lock-add-keywords
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127 nil `(("(?\\(lambda\\>\\)"
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128 (0 (progn (compose-region (match-beginning 1) (match-end 1)
129 ,(make-char 'greek-iso8859-7 107))
130 nil))))))
131
132 ;; Other
133
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134 (defun eval-and-replace ()
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135 "Replace the preceding sexp with its value."
136 (interactive)
137 (backward-kill-sexp)
138 (condition-case nil
139 (prin1 (eval (read (current-kill 0)))
140 (current-buffer))
141 (error (message "Invalid expression")
142 (insert (current-kill 0)))))
143
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144 (defun recompile-init ()
145 "Byte-compile all your dotfiles again."
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146 (interactive)
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147 (byte-recompile-directory dotfiles-dir 0)
148 ;; TODO: remove elpa-to-submit once everything's submitted.
149 (byte-recompile-directory (concat dotfiles-dir "elpa-to-submit/" 0)))
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150
2304bab @technomancy Prefix arg allows regen-autoloads to force even if "up to date".
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151 (defun regen-autoloads (&optional force-regen)
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152 "Regenerate the autoload definitions file if necessary and load it."
6ebc4e8 @technomancy Make regen-autoloads backwards-compatible with 22.
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153 (interactive "P")
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154 (let ((autoload-dir (concat dotfiles-dir "/elpa-to-submit"))
155 (generated-autoload-file autoload-file))
6ebc4e8 @technomancy Make regen-autoloads backwards-compatible with 22.
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156 (when (or force-regen
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157 (not (file-exists-p autoload-file))
cc5b4ee @technomancy Fix a bug in regen-autoloads.
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158 (some (lambda (f) (file-newer-than-file-p f autoload-file))
159 (directory-files autoload-dir t "\\.el$")))
160 (message "Updating autoloads...")
0eb65fe @technomancy Don't let hooks interfere with autoload generation.
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161 (let (emacs-lisp-mode-hook)
162 (update-directory-autoloads autoload-dir))))
420ef86 @technomancy Add cheat.el and lisppaste.el; clean up init.el.
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163 (load autoload-file))
164
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165 ;; TODO: fix this
166 (defun sudo-edit (&optional arg)
167 (interactive "p")
168 (if arg
169 (find-file (concat "/sudo:root@localhost:" (ido-read-file-name "File: ")))
170 (find-alternate-file (concat "/sudo:root@localhost:" buffer-file-name))))
171
172 (defun lorem ()
173 "Insert a lorem ipsum."
174 (interactive)
175 (insert "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do "
176 "eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim"
177 "ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut "
178 "aliquip ex ea commodo consequat. Duis aute irure dolor in "
179 "reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla "
180 "pariatur. Excepteur sint occaecat cupidatat non proident, sunt in "
181 "culpa qui officia deserunt mollit anim id est laborum."))
182
183 (defun switch-or-start (function buffer)
184 "If the buffer is current, bury it, otherwise invoke the function."
185 (if (equal (buffer-name (current-buffer)) buffer)
186 (bury-buffer)
187 (if (get-buffer buffer)
188 (switch-to-buffer buffer)
189 (funcall function))))
190
00d6b28 @mjm Added a space for insert-date fn
mjm authored
191 (defun insert-date ()
e9a6168 @technomancy Bring clojure-mode up-to-date (add imenu), add M-x insert-date.
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192 "Insert a time-stamp according to locale's date and time format."
193 (interactive)
194 (insert (format-time-string "%c" (current-time))))
195
6c79eeb @technomancy Added pairing-bot function.
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196 (defun pairing-bot ()
197 "If you can't pair program with a human, use this instead."
198 (interactive)
199 (message (if (y-or-n-p "Do you have a test for that? ") "Good." "Bad!")))
200
b418209 @technomancy Nonlisp paredit fixes; clojure-project bugfix.
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201 (defun esk-paredit-nonlisp ()
202 "Turn on paredit mode for non-lisps."
203 (set (make-local-variable 'paredit-space-for-delimiter-predicate)
204 (lambda (endp delimiter)
205 (equal (char-syntax (char-before)) ?\")))
206 (paredit-mode 1))
207
71f9f3d @technomancy Make git annotate ignore whitespace.
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208 ;; A monkeypatch to cause annotate to ignore whitespace
209 (defun vc-git-annotate-command (file buf &optional rev)
210 (let ((name (file-relative-name file)))
211 (vc-git-command buf 0 name "blame" "-w" rev)))
212
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213 (provide 'starter-kit-defuns)
214 ;;; starter-kit-defuns.el ends here
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