Dired mode is the default way of visiting directories on Emacs. Whenever you open a file using C-x C-f, you would see the current directory. If you chose to press Enter without entering a file name, you would visit the current directory in Dired mode.

I don’t use the Dired mode very much to browse directories. I would rather use Windows explorer or Nautilus. Don’t get me wrong, I do find Dired extremely useful to locate a file. But for every directory you visit it adds a new buffer. This quickly becomes very unmanageable.

However, I recently found out that you can make Dired re-use the same buffer if you press a (dired-find-alternate-file) rather than ‘Enter’ for visiting a directory in Dired mode. This is can be even used to open a file which results in the last Dired buffer being completely removed (alternatively you can use v or dired-view-file to view a read-only version of the file).

With this tip, I am finding myself using Emacs more for browsing around my file system.

Most of the time while editing a document, we need to quickly browse the folder of that file. Add the following lines to your .emacs files and so that by just pressing function key F12 you can immediately view its corresponding folder:

A nice extra is that the opened explorer will have the current file automatically selected. Press F12 once in a while, it quickly becomes addictive ;)

I have 5 simple yet useful tips below, which I have tested with a GNU Emacs 23.0.0.1 (i386-mingw-nt5.1.2600) running on Windows XP.

Tip 1: Starting off With a Prettier Emacs

Most of us customize the fonts, colours and window position of Emacs. In fact, I have found that dark backgrounds are much suited to Emacs than the default light background. However, when Emacs starts up, it annoyingly shows the default fonts and colours first. As your .emacs files load, it jumps around and changes colours quite noticeably.

You can avoid this annoyance by making a simple registry modification. Create a new .reg file say set-frame-and-fonts.reg and copy paste the following lines. Open the file to add the changes to the registry. Restart Emacs and enjoy the difference!

REGEDIT4
[HKEY_CURRENT_USER\SOFTWARE\GNU\Emacs]
"Emacs.Foreground"="black"
"Emacs.Background"="#f5f5f5"
"Emacs.Font"="-outline-Consolas-normal-r-normal-normal-12-90-96-96-c-*-iso8859-1"
"Emacs.Geometry"="100x35+0+0"

Caveat: The lines above are my preferred colours, fonts and window positions. Your’s could be different. Please customize to your taste.

Tip #2: Add “Open In Emacs” option to all Files

This will be indispensable once you are more used to Emacs. You will feel like opening anything and everything with it. And being the one true swiss-army-chainsaw it is, you will be delighted at the enormous no: of filetypes that Emacs supports out of the box.

This .reg file add an “Open in Emacs” option in Windows Explorer when you right click on any file. Copy the following lines to a .reg file say Add-Emacs-To-Open-Any-File.reg and open it to add the changes to the registry. Make sure that you have modified the path below to point to your emacs installation path (mine is in D: drive). The emacsclientw.exe resides in the same place where your runemacs.exe resides (right-clicking on the emacs icon, generally shows you this).

Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\*\Shell\Open In Emacs\Command]
@="\"D:\\Program Files\\Emacs23\\bin\\emacsclientw.exe\" -a \"D:\\Program Files\\Emacs23\\bin\\runemacs.exe\" \"%1\""

Tip #3: Goodbye Capslock

If you use Emacs a lot, you will find that you have to use the Ctrl key a lot. You might find your left thumb getting strained after prolonged use. The easiest solution for this is to reassign a less used key as the Ctrl key. Most people choose the Caps Lock key for this purpose. It is surprisingly not that much useful and soon you will forget that such a key ever existed.

Whenever I searched, I found that most people swap the Ctrl and Caps Lock keys. However, this is irritating as I might still want to use the old Ctrl key if I press it accidentally. Here is how to replace Caps Lock with the Ctrl Key.

Copy the following lines to a .reg file say replace_caps.reg and open it to add the changes to the registry. Now just reboot and you are done!

REGEDIT4

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Keyboard Layout]
"Scancode Map"=hex:00,00,00,00,00,00,00,00,02,00,00,00,1d,00,3a,00,00,00,00,00

Yes, it takes some time to “unlearn” and “learn” the new key position, but trust me it’s worth the effort.

Tip #4: Use a Spell Checker

A spell checker is something I feel should be a part of any editor. Here is how to enable on the fly spell checking in Emacs.

1. Install aspell
2. Add the following lines to your .emacs file (adjust the path to aspell accordingly)

Elisp:

;; aspell is the spell checker that works for me
(setq-default ispell-program-name "D:\\Arun\\Home\\bin\\aspell.exe")
(setq text-mode-hook '(lambda()
                         (flyspell-mode t)       ; spellchek (sic) on the fly
                         ))

Tip #5: Setup a Postscript Printer

By default, you can pretty-print all your documents directly from emacs. But this requires configuring a postscript printer. There is a nice package called Ghostscript which takes care of doing this.

1. Download and install Ghostscript from here say at D:\gs

2. Download and install GSView from here say at D:\gs\gsview

3. Then add the following lines to your .emacs file:

Elisp:

(if (string= system-name "CORPLAPTP65") ; Works in office only
    (progn
      ;;  Windows printer
      (setq-default ps-lpr-command (expand-file-name "/gs/gsview/gsprint.exe"))
      (setq-default ps-printer-name t)
      (setq-default ps-printer-name-option nil)
      (setq ps-lpr-switches '("-query")) ; show printer dialog
      (setq ps-right-header '("/pagenumberstring load" ps-time-stamp-mon-dd-yyyy))))

Caveat: Be sure to switch to a light background color scheme before you print, else your fonts will be so light that they won’t be readable!

Speaking of starts, for most of us January 1st is like a reset button. Or at least we wish it is. Here comes an opportunity to cut down on that chocolate addition or make a habit of paying bills on time. They go by the ominous term ‘Resolutions’. For me, a self described procrastinator, I had to bring to speed my time planning tools to the brand new 2008. In case you are wondering, they are:

• Hipster PDA/PocketMod
• My customised-till-my-fingers-bled Emacs 23.0

I printed out my Pocketmod from the website directly. I was using version 2 for the first time and loved the idea of being able to customize the front page with my details. You can have print your name and address printed rather than typing it each time.

I’ve been reconverted to emacs from Notepad++, after seeing the very useful Org mode. Once again I have spent many, many hours cutomising the my .emacs file. When it comes to emacs the word customising is really misleading, it should be actually called reprogramming ;)

Actually, this time I have added some very neat features like TextMate-like snippet expansion upon pressing TAB, personal menu, windows Postscript printer support (Emacs prepares gorgeous printouts of code). They are very useful and I hope I will be able to blog about them soon. In fact, this post was written in Emacs using a markdown mode

So for all my readers out there here is wishing you and happy, prosperous and well-planned New Year!