Sharp Emacs Tips

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Pragmatic Emacs: Convert tabs to spaces

http://pragmaticemacs.com/emacs/convert-tabs-to-spaces

Planet Emacsen / by Ben Maughan

To replace tabs with the appropriate number of spaces, use M-x untabify.

To do the reverse and convert multiple spaces to tabs, you can use M-x tabify.

Both commands work on a region. To run on the whole buffer use a prefix argument (i.e. C-u M-x untabify).

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## ivy-mode: nice replacement for icomplete-mode + ido-mode + ido-vertical-mode `ivy-mode` is part of [swiper](http://github.com/abo-abo/swiper ), but can be used standalone. feature: minibuffer completion for: * commands (M-x, where-is) * variables (describe-variable, customize-variable, find-variable) * functions (describe-function, find-finction) * customization groups (customize-group) * ~~faces (describe-face, customize-face)~~ * libraries (load-libray, find-library) * packages (describe-package, package-install) * files (find-file, insert-file) * buffers (switch-to-buffer) * tags (find-tag) * info nodes (Info-goto-node) * unicode chars (ucs-insert) * etc Note that `icomplete-mode` only completes the first four things, and `ido-mode` only does files and buffers.  Even compared with ido + [ido-ubiquitous](http://giyhub.com/DarwinAwardWinner/ido-ubiquitous ), ivy wins at `M-x`, `find-tag`. Ivy displays candidates vertically, just like [ido-vertical-mode](http://github.com/gemesaw/ido-vertical-mode.el ) does. ### as front-end of code completion And if used together with [ido-at-point](http://guthub.com/katspaugh/ido-at-point ), it can be a front-end for `completion-at-point` (M-TAB) code completion.     (eval-after-load "ido-at-point"       `(progn         (require 'ivy)         (defun ido-at-point-read (choices common)           (ivy-read "" choices                            :initial-input common                            :require-match t))       ))

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老婆孩子不在家，宅男又可以玩自己的玩具了。上个月（？！）给pcduino刷了个安卓（刷在SD卡上的，有SD卡插上就启动到Android，拔掉SD卡重启就还是原来的Lubuntu），毕竟要看视频玩游戏一类的还是安卓的应用比较多。 说起来，家里先后有过两个Apple TV，都坏了，奔奔都有好一段没看米老鼠变形金刚了-- 手机屏幕太小，对小孩子眼睛伤害更大，我还是倾向于电视机

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A fair and even handed comparison of Vim and Emacs ... With a feature by feature breakdown stolen from http://www.reddit.com/r/emacs/comments/38gd2n/a_fair_and_even_handed_comparison_of_vim_and/

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editors' learning curves

From: http://erlangexamples.com/2009/08/03/diving-into-emacs/

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Emacs's built-in completion for minibuffer

Icomplete mode provides an incremental MiniBuffer Completion preview: As you type in the minibuffer, a list of matching commands is echoed there so you can see how to complete a command. 

Different from `ido-mode', icomplete won't provide completion for files & buffer, it would completes:

commands (M-x)

variables (C-h v, set-variable, find-variable, customize-variable)

function (C-h f, find-function)

customization groups (customize-group)

To turn it on:  M-x icomplete-mode RET

For more info: EmacsWiki: Icomplete Mode

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Emacs: undo/redo your window layout changes

“winner-mode” lets you revert to a previous window configuration. It's bundled with GNU Emacs.

default bindings:

C-c <left>:  winner-undo C-c <right>:  winner-redo

From:  http://xahlee.blogspot.com/2011/08/emacs-winner-mode-preserve-your-split.html

#emacs

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emacs: Ex commands without entering viper-mode

(require 'viper-ex) (require 'viper-keym) (require 'viper-cmd)

(define-key global-map (kbd “C-:”) ‘viper-ex)

From: http://www.advogato.org/person/chalst/diary/277.html

#emacs

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