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Updated matlab-mode (and other tweaks).

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larstvei 2014-01-27 14:32:00 +01:00
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@ -42,6 +42,7 @@
</div> </div>
</div> </div>
# About # About
This is a Emacs configuration file written in `org-mode`. There are a few This is a Emacs configuration file written in `org-mode`. There are a few
@ -62,17 +63,15 @@ To avoid doing this each time a change is made we can add a function to
the `after-save-hook` ensuring to always tangle and byte-compile the the `after-save-hook` ensuring to always tangle and byte-compile the
`org`-document after changes. `org`-document after changes.
```lisp (defun init-hook ()
(defun init-hook ()
"If the current buffer is 'init.org' the code-blocks are "If the current buffer is 'init.org' the code-blocks are
tangled, and the tangled file is compiled." tangled, and the tangled file is compiled."
(when (equal (buffer-file-name) (when (equal (buffer-file-name)
(expand-file-name (concat user-emacs-directory "init.org"))) (expand-file-name (concat user-emacs-directory "init.org")))
(org-babel-tangle) (org-babel-tangle)
(byte-compile-file (concat user-emacs-directory "init.el")))) (byte-compile-file (concat user-emacs-directory "init.el"))))
(add-hook 'after-save-hook 'init-hook) (add-hook 'after-save-hook 'init-hook)
```
## Package ## Package
@ -80,24 +79,19 @@ Managing extensions for Emacs is simplified using `package` which
is built in to Emacs 24 and newer. To load downloaded packages we is built in to Emacs 24 and newer. To load downloaded packages we
need to initialize `package`. need to initialize `package`.
```lisp (require 'package)
(require 'package) (package-initialize)
(package-initialize)
```
Packages can be fetched from different mirrors, [melpa](http://melpa.milkbox.net/#/) is the largest Packages can be fetched from different mirrors, [melpa](http://melpa.milkbox.net/#/) is the largest
archive and is well maintained. archive and is well maintained.
```lisp (add-to-list 'package-archives
(add-to-list 'package-archives
'("MELPA" . "http://melpa.milkbox.net/packages/") t) '("MELPA" . "http://melpa.milkbox.net/packages/") t)
```
We can define a predicate that tells us wither or not the newest version We can define a predicate that tells us wither or not the newest version
of a package is installed. of a package is installed.
```lisp (defun newest-package-installed-p (package)
(defun newest-package-installed-p (package)
"Return true if the newest available PACKAGE is installed." "Return true if the newest available PACKAGE is installed."
(when (package-installed-p package) (when (package-installed-p package)
(let* ((local-pkg-desc (or (assq package package-alist) (let* ((local-pkg-desc (or (assq package package-alist)
@ -106,16 +100,14 @@ of a package is installed.
(and local-pkg-desc newest-pkg-desc (and local-pkg-desc newest-pkg-desc
(version-list-= (package-desc-vers (cdr local-pkg-desc)) (version-list-= (package-desc-vers (cdr local-pkg-desc))
(package-desc-vers (cdr newest-pkg-desc))))))) (package-desc-vers (cdr newest-pkg-desc)))))))
```
Let's write a function to install a package if it is not installed or Let's write a function to install a package if it is not installed or
upgrades it if a new version has been released. Here our predicate comes upgrades it if a new version has been released. Here our predicate comes
in handy. in handy.
```lisp (defun upgrade-or-install-package (package)
(defun upgrade-or-install-package (package)
"Unless the newest available version of PACKAGE is installed "Unless the newest available version of PACKAGE is installed
PACKAGE is installed and the current version is deleted." PACKAGE is installed and the current version is deleted."
(unless (newest-package-installed-p package) (unless (newest-package-installed-p package)
(let ((pkg-desc (assq package package-alist))) (let ((pkg-desc (assq package package-alist)))
(when pkg-desc (when pkg-desc
@ -123,7 +115,6 @@ PACKAGE is installed and the current version is deleted."
(package-version-join (package-version-join
(package-desc-vers (cdr pkg-desc))))) (package-desc-vers (cdr pkg-desc)))))
(package-install package)))) (package-install package))))
```
The `package-refresh-contents` function downloads archive descriptions, The `package-refresh-contents` function downloads archive descriptions,
this is a major bottleneck in this configuration. To avoid this we can this is a major bottleneck in this configuration. To avoid this we can
@ -133,12 +124,10 @@ second specifies wither one should update during the initialization. The
third is a path to a file where a time-stamp is stored in order to check third is a path to a file where a time-stamp is stored in order to check
when packages were updated last. when packages were updated last.
```lisp (defvar days-between-updates 1)
(defvar days-between-updates 1) (defvar do-package-update-on-init t)
(defvar do-package-update-on-init t) (defvar package-last-update-file
(defvar package-last-update-file
(expand-file-name (concat user-emacs-directory ".package-last-update"))) (expand-file-name (concat user-emacs-directory ".package-last-update")))
```
The tricky part is figuring out when the last time the Emacs was updated! The tricky part is figuring out when the last time the Emacs was updated!
Here is a hacky way of doing it, using [time-stamps](http://www.gnu.org/software/emacs/manual/html_node/emacs/Time-Stamps.html). By adding a Here is a hacky way of doing it, using [time-stamps](http://www.gnu.org/software/emacs/manual/html_node/emacs/Time-Stamps.html). By adding a
@ -146,10 +135,9 @@ time-stamp to the a file, we can determine wither or not to do an
update. After that we must run the `time-stamp`-function to update the update. After that we must run the `time-stamp`-function to update the
time-stamp. time-stamp.
```lisp (require 'time-stamp)
(require 'time-stamp) ;; Open the package-last-update-file
;; Open the package-last-update-file (with-temp-file package-last-update-file
(with-temp-file package-last-update-file
(if (file-exists-p package-last-update-file) (if (file-exists-p package-last-update-file)
(progn (progn
;; Insert it's original content's. ;; Insert it's original content's.
@ -170,14 +158,13 @@ time-stamp.
;; If no such file exists it is created with a time-stamp. ;; If no such file exists it is created with a time-stamp.
(insert "Time-stamp: <>") (insert "Time-stamp: <>")
(time-stamp))) (time-stamp)))
```
Now we can use the function above to make sure packages are installed and Now we can use the function above to make sure packages are installed and
up to date. Here are some packages I find useful (some of these up to date. Here are some packages I find useful (some of these
configurations are also dependent on them). configurations are also dependent on them).
```lisp (when (and do-package-update-on-init
(when do-package-update-on-init (y-or-n-p "Update all packages?"))
(package-refresh-contents) (package-refresh-contents)
(dolist (package (dolist (package
@ -195,6 +182,7 @@ configurations are also dependent on them).
jedi ; Python auto-completion for Emacs jedi ; Python auto-completion for Emacs
magit ; control Git from Emacs magit ; control Git from Emacs
markdown-mode ; Emacs Major mode for Markdown-formatted files. markdown-mode ; Emacs Major mode for Markdown-formatted files.
matlab-mode ; MATLAB integration with Emacs.
monokai-theme ; A fruity color theme for Emacs. monokai-theme ; A fruity color theme for Emacs.
move-text ; Move current line or region with M-up or M-down move-text ; Move current line or region with M-up or M-down
multiple-cursors ; Multiple cursors for Emacs. multiple-cursors ; Multiple cursors for Emacs.
@ -203,24 +191,24 @@ configurations are also dependent on them).
pretty-lambdada ; the word `lambda' as the Greek letter. pretty-lambdada ; the word `lambda' as the Greek letter.
smex)) ; M-x interface with Ido-style fuzzy matching. smex)) ; M-x interface with Ido-style fuzzy matching.
(upgrade-or-install-package package))) (upgrade-or-install-package package)))
```
## Require ## Require
Some features are not loaded by default to minimize initialization time, Some features are not loaded by default to minimize initialization time,
so they have to be required (or loaded, if you will). so they have to be required (or loaded, if you will).
```lisp (dolist (feature
(dolist (feature
'(auto-compile ; auto-compile .el files '(auto-compile ; auto-compile .el files
auto-complete-config ; a configuration for auto-complete-mode auto-complete-config ; a configuration for auto-complete-mode
jedi ; auto-completion for python jedi ; auto-completion for python
pretty-lambdada ; show 'lambda' as the greek letter. matlab ; matlab-mode
ob-matlab ; org-babel matlab
ox-latex ; the latex-exporter (from org) ox-latex ; the latex-exporter (from org)
ox-md ; Markdown exporter (from org)
pretty-lambdada ; show 'lambda' as the greek letter.
recentf ; recently opened files recentf ; recently opened files
tex-mode)) ; TeX, LaTeX, and SliTeX mode commands tex-mode)) ; TeX, LaTeX, and SliTeX mode commands
(require feature)) (require feature))
```
## Sane defaults ## Sane defaults
@ -228,93 +216,74 @@ These are what *I* consider to be saner defaults.
We can set variables to whatever value we'd like using `setq`. We can set variables to whatever value we'd like using `setq`.
```lisp (setq initial-scratch-message nil ; Clean scratch buffer.
(setq initial-scratch-message nil ; Clean scratch buffer.
inhibit-startup-message t ; No splash screen please. inhibit-startup-message t ; No splash screen please.
default-input-method "TeX" ; Use TeX when toggeling input method. default-input-method "TeX" ; Use TeX when toggeling input method.
ring-bell-function 'ignore ; Quite as a mouse. ring-bell-function 'ignore ; Quite as a mouse.
doc-view-continuous t ; At page edge goto next/previous. doc-view-continuous t ; At page edge goto next/previous.
echo-keystrokes 0.1) ; Show keystrokes asap. echo-keystrokes 0.1) ; Show keystrokes asap.
;; Some mac-bindings interfere with Emacs bindings. ;; Some mac-bindings interfere with Emacs bindings.
(when (boundp 'mac-pass-command-to-system) (when (boundp 'mac-pass-command-to-system)
(setq mac-pass-command-to-system nil)) (setq mac-pass-command-to-system nil))
```
Some variables are buffer-local, so changing them using `setq` will only Some variables are buffer-local, so changing them using `setq` will only
change them in a single buffer. Using `setq-default` we change the change them in a single buffer. Using `setq-default` we change the
buffer-local variable's default value. buffer-local variable's default value.
```lisp (setq-default fill-column 76 ; Maximum line width.
(setq-default fill-column 76 ; Maximum line width.
indent-tabs-mode nil ; Use spaces instead of tabs. indent-tabs-mode nil ; Use spaces instead of tabs.
split-width-threshold 100 ; Split verticly by default. split-width-threshold 100 ; Split verticly by default.
auto-fill-function 'do-auto-fill) ; Auto-fill-mode everywhere. auto-fill-function 'do-auto-fill) ; Auto-fill-mode everywhere.
```
The `load-path` specifies where Emacs should look for `.el`-files (or The `load-path` specifies where Emacs should look for `.el`-files (or
Emacs lisp files). I have a directory called `site-lisp` where I keep all Emacs lisp files). I have a directory called `site-lisp` where I keep all
extensions that have been installed manually (these are mostly my own extensions that have been installed manually (these are mostly my own
projects). projects).
```lisp (let ((default-directory (concat user-emacs-directory "site-lisp/")))
(let ((default-directory (concat user-emacs-directory "site-lisp/")))
(when (file-exists-p default-directory) (when (file-exists-p default-directory)
(normal-top-level-add-to-load-path '(".")) (normal-top-level-add-to-load-path '("."))
(normal-top-level-add-subdirs-to-load-path))) (normal-top-level-add-subdirs-to-load-path)))
```
Answering *yes* and *no* to each question from Emacs can be tedious, a Answering *yes* and *no* to each question from Emacs can be tedious, a
single *y* or *n* will suffice. single *y* or *n* will suffice.
```lisp (fset 'yes-or-no-p 'y-or-n-p)
(fset 'yes-or-no-p 'y-or-n-p)
```
To avoid file system clutter we put all auto saved files in a single To avoid file system clutter we put all auto saved files in a single
directory. directory.
```lisp (defvar emacs-autosave-directory
(defvar emacs-autosave-directory
(concat user-emacs-directory "autosaves/") (concat user-emacs-directory "autosaves/")
"This variable dictates where to put auto saves. It is set to a "This variable dictates where to put auto saves. It is set to a
directory called autosaves located wherever your .emacs.d/ is directory called autosaves located wherever your .emacs.d/ is
located.") located.")
;; Sets all files to be backed up and auto saved in a single directory. ;; Sets all files to be backed up and auto saved in a single directory.
(setq backup-directory-alist (setq backup-directory-alist
`((".*" . ,emacs-autosave-directory)) `((".*" . ,emacs-autosave-directory))
auto-save-file-name-transforms auto-save-file-name-transforms
`((".*" ,emacs-autosave-directory t))) `((".*" ,emacs-autosave-directory t)))
```
Set `utf-8` as preferred coding system. Set `utf-8` as preferred coding system.
```lisp (set-language-environment "UTF-8")
(set-language-environment "UTF-8")
```
By default the `narrow-to-region` command is disabled and issues a By default the `narrow-to-region` command is disabled and issues a
warning, because it might confuse new users. I find it useful sometimes, warning, because it might confuse new users. I find it useful sometimes,
and don't want to be warned. and don't want to be warned.
```lisp (put 'narrow-to-region 'disabled nil)
(put 'narrow-to-region 'disabled nil)
```
Call `auto-complete` default configuration, which enables `auto-complete` Call `auto-complete` default configuration, which enables `auto-complete`
globally. globally.
```lisp (ac-config-default)
(ac-config-default)
```
Automaticly revert `doc-view`-buffers when the file changes on disk. Automaticly revert `doc-view`-buffers when the file changes on disk.
```lisp (add-hook 'doc-view-mode-hook 'auto-revert-mode)
(add-hook 'doc-view-mode-hook 'auto-revert-mode)
```
## Modes ## Modes
@ -322,19 +291,16 @@ There are some modes that are enabled by default that I don't find
particularly useful. We create a list of these modes, and disable all of particularly useful. We create a list of these modes, and disable all of
these. these.
```lisp (dolist (mode
(dolist (mode
'(tool-bar-mode ; No toolbars, more room for text. '(tool-bar-mode ; No toolbars, more room for text.
scroll-bar-mode ; No scroll bars either. scroll-bar-mode ; No scroll bars either.
blink-cursor-mode)) ; The blinking cursor gets old. blink-cursor-mode)) ; The blinking cursor gets old.
(funcall mode 0)) (funcall mode 0))
```
Let's apply the same technique for enabling modes that are disabled by Let's apply the same technique for enabling modes that are disabled by
default. default.
```lisp (dolist (mode
(dolist (mode
'(abbrev-mode ; E.g. sopl -> System.out.println. '(abbrev-mode ; E.g. sopl -> System.out.println.
auto-compile-on-load-mode ; Compile .el files on load ... auto-compile-on-load-mode ; Compile .el files on load ...
auto-compile-on-save-mode ; ... and save. auto-compile-on-save-mode ; ... and save.
@ -343,28 +309,21 @@ default.
recentf-mode ; Recently opened files. recentf-mode ; Recently opened files.
show-paren-mode)) ; Highlight matching parentheses. show-paren-mode)) ; Highlight matching parentheses.
(funcall mode 1)) (funcall mode 1))
```
This makes `.md`-files open in `markdown-mode`. This makes `.md`-files open in `markdown-mode`.
```lisp (add-to-list 'auto-mode-alist '("\\.md\\'" . markdown-mode))
(add-to-list 'auto-mode-alist '("\\.md\\'" . markdown-mode))
```
## Visual ## Visual
Change the color-theme to `monokai` (downloaded using `package`). Change the color-theme to `monokai` (downloaded using `package`).
```lisp (load-theme 'monokai t)
(load-theme 'monokai t)
```
Use the [Inconsolata](http://www.levien.com/type/myfonts/inconsolata.html) font if it's installed on the system. Use the [Inconsolata](http://www.levien.com/type/myfonts/inconsolata.html) font if it's installed on the system.
```lisp (when (member "Inconsolata" (font-family-list))
(when (member "Inconsolata" (font-family-list))
(set-face-attribute 'default nil :font "Inconsolata-13")) (set-face-attribute 'default nil :font "Inconsolata-13"))
```
## Ido ## Ido
@ -374,47 +333,38 @@ names you can write a part of it and select one from a list of
possibilities. Using `ido-vertical-mode` changes the way possibilities possibilities. Using `ido-vertical-mode` changes the way possibilities
are displayed, and `flx-ido-mode` enables fuzzy matching. are displayed, and `flx-ido-mode` enables fuzzy matching.
```lisp (dolist (mode
(dolist (mode
'(ido-mode ; Interactivly do. '(ido-mode ; Interactivly do.
ido-everywhere ; Use Ido for all buffer/file reading. ido-everywhere ; Use Ido for all buffer/file reading.
ido-vertical-mode ; Makes ido-mode display vertically. ido-vertical-mode ; Makes ido-mode display vertically.
flx-ido-mode)) ; Toggle flx ido mode. flx-ido-mode)) ; Toggle flx ido mode.
(funcall mode 1)) (funcall mode 1))
```
We can set the order of file selections in `ido`. I prioritize source We can set the order of file selections in `ido`. I prioritize source
files along with `org`- and `tex`-files. files along with `org`- and `tex`-files.
```lisp (setq ido-file-extensions-order
(setq ido-file-extensions-order
'(".el" ".scm" ".lisp" ".java" ".c" ".h" ".org" ".tex")) '(".el" ".scm" ".lisp" ".java" ".c" ".h" ".org" ".tex"))
```
Sometimes when using `ido-switch-buffer` the `*Messages*` buffer get in Sometimes when using `ido-switch-buffer` the `*Messages*` buffer get in
the way, so we set it to be ignored (it can be accessed using `C-h e`, so the way, so we set it to be ignored (it can be accessed using `C-h e`, so
there is really no need for it in the buffer list). there is really no need for it in the buffer list).
```lisp (add-to-list 'ido-ignore-buffers "*Messages*")
(add-to-list 'ido-ignore-buffers "*Messages*")
```
To make `M-x` behave more like `ido-mode` we can use the `smex` To make `M-x` behave more like `ido-mode` we can use the `smex`
package. It needs to be initialized, and we can replace the binding to package. It needs to be initialized, and we can replace the binding to
the standard `execute-extended-command` with `smex`. the standard `execute-extended-command` with `smex`.
```lisp (smex-initialize)
(smex-initialize) (global-set-key (kbd "M-x") 'smex)
(global-set-key (kbd "M-x") 'smex)
```
## Calendar ## Calendar
Define a function to display week numbers in `calender-mode`. The snippet Define a function to display week numbers in `calender-mode`. The snippet
is from [EmacsWiki](http://www.emacswiki.org/emacs/CalendarWeekNumbers). is from [EmacsWiki](http://www.emacswiki.org/emacs/CalendarWeekNumbers).
```lisp (defun calendar-show-week (arg)
(defun calendar-show-week (arg)
"Displaying week number in calendar-mode." "Displaying week number in calendar-mode."
(interactive "P") (interactive "P")
(copy-face font-lock-constant-face 'calendar-iso-week-face) (copy-face font-lock-constant-face 'calendar-iso-week-face)
@ -429,22 +379,17 @@ is from [EmacsWiki](http://www.emacswiki.org/emacs/CalendarWeekNumbers).
(calendar-absolute-from-gregorian (calendar-absolute-from-gregorian
(list month day year))))) (list month day year)))))
'font-lock-face 'calendar-iso-week-face)))) 'font-lock-face 'calendar-iso-week-face))))
```
Evaluate the `calendar-show-week` function. Evaluate the `calendar-show-week` function.
```lisp (calendar-show-week t)
(calendar-show-week t)
```
Set Monday as the first day of the week, and set my location. Set Monday as the first day of the week, and set my location.
```lisp (setq calendar-week-start-day 1
(setq calendar-week-start-day 1
calendar-latitude 60.0 calendar-latitude 60.0
calendar-longitude 10.7 calendar-longitude 10.7
calendar-location-name "Oslo, Norway") calendar-location-name "Oslo, Norway")
```
## Mail ## Mail
@ -453,10 +398,9 @@ computers. Because the mail-setup wont work without these programs
installed we bind `load-mail-setup` to `nil`. If the value is changed to installed we bind `load-mail-setup` to `nil`. If the value is changed to
a `non-nil` value mail is setup. a `non-nil` value mail is setup.
```lisp (defvar load-mail-setup nil)
(defvar load-mail-setup nil)
(when load-mail-setup (when load-mail-setup
;; We need mu4e ;; We need mu4e
(require 'mu4e) (require 'mu4e)
@ -492,7 +436,7 @@ a `non-nil` value mail is setup.
(defadvice mu4e (before show-mu4e (arg) activate) (defadvice mu4e (before show-mu4e (arg) activate)
"Always show mu4e in fullscreen and remember window "Always show mu4e in fullscreen and remember window
configuration." configuration."
(unless arg (unless arg
(window-configuration-to-register :mu4e-fullscreen) (window-configuration-to-register :mu4e-fullscreen)
(mu4e-update-mail-and-index t) (mu4e-update-mail-and-index t)
@ -504,62 +448,49 @@ configuration."
;; Overwrite the native 'compose-mail' binding to 'show-mu4e'. ;; Overwrite the native 'compose-mail' binding to 'show-mu4e'.
(global-set-key (kbd "C-x m") 'mu4e)) (global-set-key (kbd "C-x m") 'mu4e))
```
## Flyspell ## Flyspell
Flyspell offers on-the-fly spell checking. We can enable flyspell for all Flyspell offers on-the-fly spell checking. We can enable flyspell for all
text-modes with this snippet. text-modes with this snippet.
```lisp (add-hook 'text-mode-hook 'turn-on-flyspell)
(add-hook 'text-mode-hook 'turn-on-flyspell)
```
To use flyspell for programming there is `flyspell-prog-mode`, that only To use flyspell for programming there is `flyspell-prog-mode`, that only
enables spell checking for comments and strings. We can enable it for all enables spell checking for comments and strings. We can enable it for all
programming modes using the `prog-mode-hook`. Flyspell interferes with programming modes using the `prog-mode-hook`. Flyspell interferes with
auto-complete mode, but there is a workaround provided by auto complete. auto-complete mode, but there is a workaround provided by auto complete.
```lisp (add-hook 'prog-mode-hook 'flyspell-prog-mode)
(add-hook 'prog-mode-hook 'flyspell-prog-mode) (ac-flyspell-workaround)
(ac-flyspell-workaround)
```
To cycle through dictionary's we can define a variable containing a To cycle through dictionary's we can define a variable containing a
cyclic list of installed language packs. cyclic list of installed language packs.
```lisp (defvar ispell-languages '#1=("english" "norsk" . #1#))
(defvar ispell-languages '#1=("english" "norsk" . #1#))
```
Now we only need a small function to change set the language and shift Now we only need a small function to change set the language and shift
the list. the list.
```lisp (defun cycle-languages ()
(defun cycle-languages ()
"Changes the ispell-dictionary to whatever is the next (or cdr) in the "Changes the ispell-dictionary to whatever is the next (or cdr) in the
LANGUAGES (cyclic) list." LANGUAGES (cyclic) list."
(interactive) (interactive)
(ispell-change-dictionary (ispell-change-dictionary
(car (setq ispell-languages (cdr ispell-languages))))) (car (setq ispell-languages (cdr ispell-languages)))))
```
## Org ## Org
I use `org-agenda` for appointments and such. I use `org-agenda` for appointments and such.
```lisp (setq org-agenda-start-on-weekday nil ; Show agenda from today.
(setq org-agenda-start-on-weekday nil ; Show agenda from today.
org-agenda-files '("~/Dropbox/life.org") ; A list of agenda files. org-agenda-files '("~/Dropbox/life.org") ; A list of agenda files.
org-agenda-default-appointment-duration 120) ; 2 hours appointments. org-agenda-default-appointment-duration 120) ; 2 hours appointments.
```
When editing org-files with source-blocks, we want the source blocks to When editing org-files with source-blocks, we want the source blocks to
be themed as they would in their native mode. be themed as they would in their native mode.
```lisp (setq org-src-fontify-natively t)
(setq org-src-fontify-natively t)
```
## Interactive functions ## Interactive functions
@ -568,43 +499,36 @@ be themed as they would in their native mode.
To search recent files useing `ido-mode` we add this snippet from To search recent files useing `ido-mode` we add this snippet from
[EmacsWiki](http://www.emacswiki.org/emacs/CalendarWeekNumbers). [EmacsWiki](http://www.emacswiki.org/emacs/CalendarWeekNumbers).
```lisp (defun recentf-ido-find-file ()
(defun recentf-ido-find-file ()
"Find a recent file using Ido." "Find a recent file using Ido."
(interactive) (interactive)
(let ((f (ido-completing-read "Choose recent file: " recentf-list nil t))) (let ((f (ido-completing-read "Choose recent file: " recentf-list nil t)))
(when f (when f
(find-file f)))) (find-file f))))
```
`just-one-space` removes all whitespace around a point - giving it a `just-one-space` removes all whitespace around a point - giving it a
negative argument it removes newlines as well. We wrap a interactive negative argument it removes newlines as well. We wrap a interactive
function around it to be able to bind it to a key. function around it to be able to bind it to a key.
```lisp (defun remove-whitespace-inbetween ()
(defun remove-whitespace-inbetween ()
"Removes whitespace before and after the point." "Removes whitespace before and after the point."
(interactive) (interactive)
(just-one-space -1)) (just-one-space -1))
```
This interactive function switches you to a `shell`, and if triggered in This interactive function switches you to a `shell`, and if triggered in
the shell it switches back to the previous buffer. the shell it switches back to the previous buffer.
```lisp (defun switch-to-shell ()
(defun switch-to-shell ()
"Jumps to eshell or back." "Jumps to eshell or back."
(interactive) (interactive)
(if (string= (buffer-name) "*shell*") (if (string= (buffer-name) "*shell*")
(switch-to-prev-buffer) (switch-to-prev-buffer)
(shell))) (shell)))
```
To duplicate either selected text or a line we define this interactive To duplicate either selected text or a line we define this interactive
function. function.
```lisp (defun duplicate-thing ()
(defun duplicate-thing ()
"Ethier duplicates the line or the region" "Ethier duplicates the line or the region"
(interactive) (interactive)
(save-excursion (save-excursion
@ -614,12 +538,10 @@ function.
(unless (region-active-p) (unless (region-active-p)
(newline)) (newline))
(insert (buffer-substring start end))))) (insert (buffer-substring start end)))))
```
To tidy up a buffer we define this function borrowed from [simenheg](https://github.com/simenheg). To tidy up a buffer we define this function borrowed from [simenheg](https://github.com/simenheg).
```lisp (defun tidy ()
(defun tidy ()
"Ident, untabify and unwhitespacify current buffer, or region if active." "Ident, untabify and unwhitespacify current buffer, or region if active."
(interactive) (interactive)
(let ((beg (if (region-active-p) (region-beginning) (point-min))) (let ((beg (if (region-active-p) (region-beginning) (point-min)))
@ -627,62 +549,47 @@ To tidy up a buffer we define this function borrowed from [simenheg](https://git
(indent-region beg end) (indent-region beg end)
(whitespace-cleanup) (whitespace-cleanup)
(untabify beg (if (< end (point-max)) end (point-max))))) (untabify beg (if (< end (point-max)) end (point-max)))))
```
## Key bindings ## Key bindings
Bindings for [expand-region](https://github.com/magnars/expand-region.el). Bindings for [expand-region](https://github.com/magnars/expand-region.el).
```lisp (global-set-key (kbd "C-'") 'er/expand-region)
(global-set-key (kbd "C-'") 'er/expand-region) (global-set-key (kbd "C-;") 'er/contract-region)
(global-set-key (kbd "C-;") 'er/contract-region)
```
Bindings for [multiple-cursors](https://github.com/magnars/multiple-cursors.el). Bindings for [multiple-cursors](https://github.com/magnars/multiple-cursors.el).
```lisp (global-set-key (kbd "C-c e") 'mc/edit-lines)
(global-set-key (kbd "C-c e") 'mc/edit-lines) (global-set-key (kbd "C-c a") 'mc/mark-all-like-this)
(global-set-key (kbd "C-c a") 'mc/mark-all-like-this) (global-set-key (kbd "C-c n") 'mc/mark-next-like-this)
(global-set-key (kbd "C-c n") 'mc/mark-next-like-this)
```
Bindings for [Magit](http://magit.github.io). Bindings for [Magit](http://magit.github.io).
```lisp (global-set-key (kbd "C-c m") 'magit-status)
(global-set-key (kbd "C-c m") 'magit-status)
```
Bindings for [ace-jump-mode](https://github.com/winterTTr/ace-jump-mode). Bindings for [ace-jump-mode](https://github.com/winterTTr/ace-jump-mode).
```lisp (global-set-key (kbd "C-c SPC") 'ace-jump-mode)
(global-set-key (kbd "C-c SPC") 'ace-jump-mode)
```
Bindings for `move-text`. Bindings for `move-text`.
```lisp (global-set-key (kbd "<M-S-up>") 'move-text-up)
(global-set-key (kbd "<M-S-up>") 'move-text-up) (global-set-key (kbd "<M-S-down>") 'move-text-down)
(global-set-key (kbd "<M-S-down>") 'move-text-down)
```
Bind some native Emacs functions. Bind some native Emacs functions.
```lisp (global-set-key (kbd "C-c s") 'ispell-word)
(global-set-key (kbd "C-c s") 'ispell-word) (global-set-key (kbd "C-c t") 'org-agenda-list)
(global-set-key (kbd "C-c t") 'org-agenda-list) (global-set-key (kbd "C-x k") 'kill-this-buffer)
(global-set-key (kbd "C-x k") 'kill-this-buffer) (global-set-key (kbd "C-x C-r") 'recentf-ido-find-file)
(global-set-key (kbd "C-x C-r") 'recentf-ido-find-file)
```
Bind the functions defined above. Bind the functions defined above.
```lisp (global-set-key (kbd "C-c l") 'cycle-languages)
(global-set-key (kbd "C-c l") 'cycle-languages) (global-set-key (kbd "C-c j") 'remove-whitespace-inbetween)
(global-set-key (kbd "C-c j") 'remove-whitespace-inbetween) (global-set-key (kbd "C-x t") 'switch-to-shell)
(global-set-key (kbd "C-x t") 'switch-to-shell) (global-set-key (kbd "C-c d") 'duplicate-thing)
(global-set-key (kbd "C-c d") 'duplicate-thing) (global-set-key (kbd "<C-tab>") 'tidy)
(global-set-key (kbd "<C-tab>") 'tidy)
```
## Advice ## Advice
@ -690,8 +597,7 @@ An advice can be given to a function to make it behave differently. This
advice makes `eval-last-sexp` (bound to `C-x C-e`) replace the sexp with advice makes `eval-last-sexp` (bound to `C-x C-e`) replace the sexp with
the value. the value.
```lisp (defadvice eval-last-sexp (around replace-sexp (arg) activate)
(defadvice eval-last-sexp (around replace-sexp (arg) activate)
"Replace sexp when called with a prefix argument." "Replace sexp when called with a prefix argument."
(if arg (if arg
(let ((pos (point))) (let ((pos (point)))
@ -700,25 +606,20 @@ the value.
(backward-kill-sexp) (backward-kill-sexp)
(forward-sexp)) (forward-sexp))
ad-do-it)) ad-do-it))
```
`Flyspell` signals an error if there is no spell-checking tool is `Flyspell` signals an error if there is no spell-checking tool is
installed. We can advice `turn-on=flyspell` and `flyspell-prog-mode` to installed. We can advice `turn-on=flyspell` and `flyspell-prog-mode` to
only try to enable `flyspell` if a spell-checking tool is avalible. only try to enable `flyspell` if a spell-checking tool is avalible.
```lisp (defadvice turn-on-flyspell (around check nil activate)
(defadvice turn-on-flyspell (around check nil activate)
"Turns on flyspell only if a spell-checking tool is installed." "Turns on flyspell only if a spell-checking tool is installed."
(when (executable-find ispell-program-name) (when (executable-find ispell-program-name)
ad-do-it)) ad-do-it))
```
```lisp (defadvice flyspell-prog-mode (around check nil activate)
(defadvice flyspell-prog-mode (around check nil activate)
"Turns on flyspell only if a spell-checking tool is installed." "Turns on flyspell only if a spell-checking tool is installed."
(when (executable-find ispell-program-name) (when (executable-find ispell-program-name)
ad-do-it)) ad-do-it))
```
# Language mode specific # Language mode specific
@ -729,31 +630,25 @@ only try to enable `flyspell` if a spell-checking tool is avalible.
can add some extra lisp-modes. We run the `pretty-lambda-for-modes` can add some extra lisp-modes. We run the `pretty-lambda-for-modes`
function to activate `pretty-lambda-mode` in lisp modes. function to activate `pretty-lambda-mode` in lisp modes.
```lisp (dolist (mode '(slime-repl-mode geiser-repl-mode))
(dolist (mode '(slime-repl-mode geiser-repl-mode))
(add-to-list 'pretty-lambda-auto-modes mode)) (add-to-list 'pretty-lambda-auto-modes mode))
(pretty-lambda-for-modes) (pretty-lambda-for-modes)
```
I use `Paredit` when editing lisp code, we enable this for all lisp-modes I use `Paredit` when editing lisp code, we enable this for all lisp-modes
in the `pretty-lambda-auto-modes` list. in the `pretty-lambda-auto-modes` list.
```lisp (dolist (mode pretty-lambda-auto-modes)
(dolist (mode pretty-lambda-auto-modes)
;; add paredit-mode to all mode-hooks ;; add paredit-mode to all mode-hooks
(add-hook (intern (concat (symbol-name mode) "-hook")) 'paredit-mode)) (add-hook (intern (concat (symbol-name mode) "-hook")) 'paredit-mode))
```
### Emacs Lisp ### Emacs Lisp
In `emacs-lisp-mode` we can enable `eldoc-mode` to display information In `emacs-lisp-mode` we can enable `eldoc-mode` to display information
about a function or a variable in the echo area. about a function or a variable in the echo area.
```lisp (add-hook 'emacs-lisp-mode-hook 'turn-on-eldoc-mode)
(add-hook 'emacs-lisp-mode-hook 'turn-on-eldoc-mode) (add-hook 'lisp-interaction-mode-hook 'turn-on-eldoc-mode)
(add-hook 'lisp-interaction-mode-hook 'turn-on-eldoc-mode)
```
### Common lisp ### Common lisp
@ -763,27 +658,21 @@ Common Lisp developer. [Quicklisp](http://www.quicklisp.org/beta/) is a library
and you can install Slime following the instructions from the site along and you can install Slime following the instructions from the site along
with this snippet. with this snippet.
```lisp (when (file-exists-p "~/quicklisp/slime-helper.elc")
(when (file-exists-p "~/quicklisp/slime-helper.elc")
(load (expand-file-name "~/quicklisp/slime-helper.elc"))) (load (expand-file-name "~/quicklisp/slime-helper.elc")))
```
We can specify what Common Lisp program Slime should use (I use SBCL). We can specify what Common Lisp program Slime should use (I use SBCL).
```lisp (setq inferior-lisp-program "sbcl")
(setq inferior-lisp-program "sbcl")
```
To improve auto completion for Common Lisp editing we can use `ac-slime` To improve auto completion for Common Lisp editing we can use `ac-slime`
which uses slime completions as a source. which uses slime completions as a source.
```lisp (add-hook 'slime-mode-hook 'set-up-slime-ac)
(add-hook 'slime-mode-hook 'set-up-slime-ac) (add-hook 'slime-repl-mode-hook 'set-up-slime-ac)
(add-hook 'slime-repl-mode-hook 'set-up-slime-ac)
(eval-after-load "auto-complete" (eval-after-load "auto-complete"
'(add-to-list 'ac-modes 'slime-repl-mode)) '(add-to-list 'ac-modes 'slime-repl-mode))
```
### Scheme ### Scheme
@ -791,13 +680,11 @@ which uses slime completions as a source.
works pretty much out of the box, we only need to add auto completion, works pretty much out of the box, we only need to add auto completion,
and specify which scheme-interpreter we prefer. and specify which scheme-interpreter we prefer.
```lisp (add-hook 'geiser-mode-hook 'ac-geiser-setup)
(add-hook 'geiser-mode-hook 'ac-geiser-setup) (add-hook 'geiser-repl-mode-hook 'ac-geiser-setup)
(add-hook 'geiser-repl-mode-hook 'ac-geiser-setup) (eval-after-load "auto-complete"
(eval-after-load "auto-complete"
'(add-to-list 'ac-modes 'geiser-repl-mode)) '(add-to-list 'ac-modes 'geiser-repl-mode))
(setq geiser-active-implementations '(racket)) (setq geiser-active-implementations '(racket))
```
## Java and C ## Java and C
@ -805,33 +692,27 @@ The `c-mode-common-hook` is a general hook that work on all C-like
languages (C, C++, Java, etc&#x2026;). I like being able to quickly compile languages (C, C++, Java, etc&#x2026;). I like being able to quickly compile
using `C-c C-c` (instead of `M-x compile`), a habit from `latex-mode`. using `C-c C-c` (instead of `M-x compile`), a habit from `latex-mode`.
```lisp (defun c-setup ()
(defun c-setup ()
(local-set-key (kbd "C-c C-c") 'compile)) (local-set-key (kbd "C-c C-c") 'compile))
(add-hook 'c-mode-common-hook 'c-setup) (add-hook 'c-mode-common-hook 'c-setup)
```
Some statements in Java appear often, and become tedious to write Some statements in Java appear often, and become tedious to write
out. We can use abbrevs to speed this up. out. We can use abbrevs to speed this up.
```lisp (define-abbrev-table 'java-mode-abbrev-table
(define-abbrev-table 'java-mode-abbrev-table
'(("psv" "public static void main(String[] args) {" nil 0) '(("psv" "public static void main(String[] args) {" nil 0)
("sopl" "System.out.println" nil 0) ("sopl" "System.out.println" nil 0)
("sop" "System.out.printf" nil 0))) ("sop" "System.out.printf" nil 0)))
```
To be able to use the abbrev table defined above, `abbrev-mode` must be To be able to use the abbrev table defined above, `abbrev-mode` must be
activated. activated.
```lisp (defun java-setup ()
(defun java-setup ()
(abbrev-mode t) (abbrev-mode t)
(setq-local compile-command (concat "javac " (buffer-name)))) (setq-local compile-command (concat "javac " (buffer-name))))
(add-hook 'java-mode-hook 'java-setup) (add-hook 'java-mode-hook 'java-setup)
```
## Assembler ## Assembler
@ -839,30 +720,24 @@ When writing assembler code I use `#` for comments. By defining
`comment-start` we can add comments using `M-;` like in other programming `comment-start` we can add comments using `M-;` like in other programming
modes. Also in assembler should one be able to compile using `C-c C-c`. modes. Also in assembler should one be able to compile using `C-c C-c`.
```lisp (defun asm-setup ()
(defun asm-setup ()
(setq comment-start "#") (setq comment-start "#")
(local-set-key (kbd "C-c C-c") 'compile)) (local-set-key (kbd "C-c C-c") 'compile))
(add-hook 'asm-mode-hook 'asm-setup) (add-hook 'asm-mode-hook 'asm-setup)
```
## LaTeX ## LaTeX
`.tex`-files should be associated with `latex-mode` instead of `.tex`-files should be associated with `latex-mode` instead of
`tex-mode`. `tex-mode`.
```lisp (add-to-list 'auto-mode-alist '("\\.tex\\'" . latex-mode))
(add-to-list 'auto-mode-alist '("\\.tex\\'" . latex-mode))
```
I like using the [Minted](https://code.google.com/p/minted/) package for source blocks in LaTeX. To make org I like using the [Minted](https://code.google.com/p/minted/) package for source blocks in LaTeX. To make org
use this we add the following snippet. use this we add the following snippet.
```lisp (add-to-list 'org-latex-packages-alist '("" "minted"))
(add-to-list 'org-latex-packages-alist '("" "minted")) (setq org-latex-listings 'minted)
(setq org-latex-listings 'minted)
```
Because [Minted](https://code.google.com/p/minted/) uses [Pygments](http://pygments.org) (an external process), we must add the Because [Minted](https://code.google.com/p/minted/) uses [Pygments](http://pygments.org) (an external process), we must add the
`-shell-escape` option to the `org-latex-pdf-process` commands. The `-shell-escape` option to the `org-latex-pdf-process` commands. The
@ -870,16 +745,14 @@ Because [Minted](https://code.google.com/p/minted/) uses [Pygments](http://pygme
Tex- and LaTeX-mode, we can add the flag with a rather dirty statement Tex- and LaTeX-mode, we can add the flag with a rather dirty statement
(if anyone finds a nicer way to do this, please let me know). (if anyone finds a nicer way to do this, please let me know).
```lisp (setq org-latex-pdf-process
(setq org-latex-pdf-process
(mapcar (mapcar
(lambda (str) (lambda (str)
(concat "pdflatex -shell-escape " (concat "pdflatex -shell-escape "
(substring str (string-match "-" str)))) (substring str (string-match "-" str))))
org-latex-pdf-process)) org-latex-pdf-process))
(setcar (cdr (cddaar tex-compile-commands)) " -shell-escape ") (setcar (cdr (cddaar tex-compile-commands)) " -shell-escape ")
```
## Python ## Python
@ -887,14 +760,12 @@ Tex- and LaTeX-mode, we can add the flag with a rather dirty statement
dependent on some python programs as well, so make sure you follow the dependent on some python programs as well, so make sure you follow the
instructions from the site. instructions from the site.
```lisp (setq jedi:server-command
(setq jedi:server-command
(cons "python3" (cdr jedi:server-command)) (cons "python3" (cdr jedi:server-command))
python-shell-interpreter "python3") python-shell-interpreter "python3")
(add-hook 'python-mode-hook 'jedi:setup) (add-hook 'python-mode-hook 'jedi:setup)
(setq jedi:complete-on-dot t) (setq jedi:complete-on-dot t)
(add-hook 'python-mode-hook 'jedi:ac-setup) (add-hook 'python-mode-hook 'jedi:ac-setup)
```
## Haskell ## Haskell
@ -902,16 +773,12 @@ instructions from the site.
the echo area. Haskell has several indentation modes - I prefer using the echo area. Haskell has several indentation modes - I prefer using
`haskell-indent`. `haskell-indent`.
```lisp (add-hook 'haskell-mode-hook 'turn-on-haskell-doc-mode)
(add-hook 'haskell-mode-hook 'turn-on-haskell-doc-mode) (add-hook 'haskell-mode-hook 'turn-on-haskell-indent)
(add-hook 'haskell-mode-hook 'turn-on-haskell-indent)
```
## Matlab ## Matlab
Matlab is very similar to Octave, which is supported by Emacs. We just Matlab is very similar to Octave, which is supported by Emacs. We just
need to let `.m`-files be associated with `octave-mode`. need to let `.m`-files be associated with `octave-mode`.
```lisp (add-to-list 'matlab-shell-command-switches "-nosplash")
(add-to-list 'auto-mode-alist '("\\.m$" . octave-mode))
```

11
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@ -65,7 +65,8 @@ PACKAGE is installed and the current version is deleted."
(insert "Time-stamp: <>") (insert "Time-stamp: <>")
(time-stamp))) (time-stamp)))
(when do-package-update-on-init (when (and do-package-update-on-init
(y-or-n-p "Update all packages?"))
(package-refresh-contents) (package-refresh-contents)
(dolist (package (dolist (package
@ -83,6 +84,7 @@ PACKAGE is installed and the current version is deleted."
jedi ; Python auto-completion for Emacs jedi ; Python auto-completion for Emacs
magit ; control Git from Emacs magit ; control Git from Emacs
markdown-mode ; Emacs Major mode for Markdown-formatted files. markdown-mode ; Emacs Major mode for Markdown-formatted files.
matlab-mode ; MATLAB integration with Emacs.
monokai-theme ; A fruity color theme for Emacs. monokai-theme ; A fruity color theme for Emacs.
move-text ; Move current line or region with M-up or M-down move-text ; Move current line or region with M-up or M-down
multiple-cursors ; Multiple cursors for Emacs. multiple-cursors ; Multiple cursors for Emacs.
@ -96,8 +98,11 @@ PACKAGE is installed and the current version is deleted."
'(auto-compile ; auto-compile .el files '(auto-compile ; auto-compile .el files
auto-complete-config ; a configuration for auto-complete-mode auto-complete-config ; a configuration for auto-complete-mode
jedi ; auto-completion for python jedi ; auto-completion for python
pretty-lambdada ; show 'lambda' as the greek letter. matlab ; matlab-mode
ob-matlab ; org-babel matlab
ox-latex ; the latex-exporter (from org) ox-latex ; the latex-exporter (from org)
ox-md ; Markdown exporter (from org)
pretty-lambdada ; show 'lambda' as the greek letter.
recentf ; recently opened files recentf ; recently opened files
tex-mode)) ; TeX, LaTeX, and SliTeX mode commands tex-mode)) ; TeX, LaTeX, and SliTeX mode commands
(require feature)) (require feature))
@ -436,4 +441,4 @@ LANGUAGES (cyclic) list."
(add-hook 'haskell-mode-hook 'turn-on-haskell-doc-mode) (add-hook 'haskell-mode-hook 'turn-on-haskell-doc-mode)
(add-hook 'haskell-mode-hook 'turn-on-haskell-indent) (add-hook 'haskell-mode-hook 'turn-on-haskell-indent)
(add-to-list 'auto-mode-alist '("\\.m$" . octave-mode)) (add-to-list 'matlab-shell-command-switches "-nosplash")

11
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@ -136,7 +136,8 @@
configurations are also dependent on them). configurations are also dependent on them).
#+BEGIN_SRC emacs-lisp :tangle yes #+BEGIN_SRC emacs-lisp :tangle yes
(when do-package-update-on-init (when (and do-package-update-on-init
(y-or-n-p "Update all packages?"))
(package-refresh-contents) (package-refresh-contents)
(dolist (package (dolist (package
@ -154,6 +155,7 @@
jedi ; Python auto-completion for Emacs jedi ; Python auto-completion for Emacs
magit ; control Git from Emacs magit ; control Git from Emacs
markdown-mode ; Emacs Major mode for Markdown-formatted files. markdown-mode ; Emacs Major mode for Markdown-formatted files.
matlab-mode ; MATLAB integration with Emacs.
monokai-theme ; A fruity color theme for Emacs. monokai-theme ; A fruity color theme for Emacs.
move-text ; Move current line or region with M-up or M-down move-text ; Move current line or region with M-up or M-down
multiple-cursors ; Multiple cursors for Emacs. multiple-cursors ; Multiple cursors for Emacs.
@ -174,8 +176,11 @@
'(auto-compile ; auto-compile .el files '(auto-compile ; auto-compile .el files
auto-complete-config ; a configuration for auto-complete-mode auto-complete-config ; a configuration for auto-complete-mode
jedi ; auto-completion for python jedi ; auto-completion for python
pretty-lambdada ; show 'lambda' as the greek letter. matlab ; matlab-mode
ob-matlab ; org-babel matlab
ox-latex ; the latex-exporter (from org) ox-latex ; the latex-exporter (from org)
ox-md ; Markdown exporter (from org)
pretty-lambdada ; show 'lambda' as the greek letter.
recentf ; recently opened files recentf ; recently opened files
tex-mode)) ; TeX, LaTeX, and SliTeX mode commands tex-mode)) ; TeX, LaTeX, and SliTeX mode commands
(require feature)) (require feature))
@ -870,5 +875,5 @@
need to let =.m=-files be associated with =octave-mode=. need to let =.m=-files be associated with =octave-mode=.
#+BEGIN_SRC emacs-lisp :tangle yes #+BEGIN_SRC emacs-lisp :tangle yes
(add-to-list 'auto-mode-alist '("\\.m$" . octave-mode)) (add-to-list 'matlab-shell-command-switches "-nosplash")
#+END_SRC #+END_SRC

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