Email attachments and Gnus

When you receive files in your email and they're embedded in the mail message, a quick way to save them is to hit K o. With a numerical prefix, it will save the nth inline or MIME attachment.

If the file is large and you want to strip it from the mail message, K O will do the trick. Again, deleting the same can be done via K d, because some mail clients will stupidly resend the attachments when replying without stripping it first as a default behaviour.

More useful commands can be found here.

Make LaTeX emulate Microsoft Word paragraph spacing

This might be useful for someone who needs to make LaTeX behave like Microsoft Word in its paragraph spacing. You know, the one where the words are stretched to fill in the entire text line area. Well, to achieve that, you need to do the following

\tolerance=1
\emergencystretch=\maxdimen
\hyphenpenalty=10000
\hbadness=10000

Hat tip to Donald Arseneau on this thread. Note that, it makes hyphenation of words very,very unlikely.

An useful emacs shell setting

This is another useful addition to your .emacs; To prevent that command line from staying at the bottom in your emacs shell. Though this doesn't seem to work on my win32 emacs and cygwin bash shell.

hmmm....

Edit: in the same thread the following suggestion works for win32 Emacs at least.

(setq comint-output-filter-functions '(comint-watch-for-password-prompt))

Now, the prompt is pretty much centred in the middle of the screen

Edit 2: More additions, this seems to be the correct way

(add-hook 'shell-mode-hook
(lambda ()
(remove-hook 'comint-output-filter-functions
'comint-postoutput-scroll-to-bottom
t))) ; LOCAL

If ediff highlighting is confusing you....

then there is a simple configuration tweak to fix that. ediff highlights all the differences in a riot of colours and it takes some time to focus on the chunk that is highlighted or active.
A simple tweak that I found when browsing the emacs newsgroup. The settings makes only the current chunk highlighted thus making it simple to see the differences. Another minor change that can be set is the whitespace difference checking. I don't use it as I sometimes deal with data files and I need to see the spaces but otherwise it too is a simple fix when you're just interested in what's changed.

;; only hilight current diff:
(setq-default ediff-highlight-all-diffs 'nil)

;; turn off whitespace checking:
(setq ediff-diff-options "-w")

To know more about ediff, read the documentation here.

USB based Fedora 9?

Saw this here and here and should say that it is really a good idea. Each release of some distribution adds new software and features but it's nice that some thought has gone into...well, getting it distributed.

With USB sticks given out as swag in conferences, this could be an attractive way to get people to try Linux. Of course, only if the boot sequence supports starting from a USB port from your PC. If it is common, I'd say, it's a better method than burning CDs. Only problem I see is that on older PCs, the USB ports are all at the back plane and it's a pain to reach around especially if you keep the PC in a corner like I do.

Even worse, mine is boxed in on 3 sides, so I have to pull out the PC cabinet and then plug it in.

Truncating long subject lines of mailing lists

If you subscribe to mailing lists, especially in digest mode, you'd find the subject line having a line like

name-of-list-Digest -date

And if the name is long, you'd see it scrolling to the right. If this is something which has to be remedied,like right now, :-)

you could add the following lines to the Group Parameters of the group.

((total-expire . t)
(gnus-list-identifiers "SAS-L Digest -")
(expiry-wait . 10))


Change the string highlighted to the subject line of the list of yours. In my case, all i now see is the date of the digest mails, which is all that I want.

Commenting or adding annotations to PDF files

This thread on comp.text.tex has some suggested software that might be of interest.

What I'm interested in is 2 things, a way to enable commenting through pdftex and a PDF viewer/reader that allows commenting or annotations. That way, I'd be able to have a decent document edit-review-fix cycle with non LaTeX users. Without that, there is the tedious job of making a non-LateX file reviewed and then transcribing the same into a tex file. Which I don't like doing.

And if the reviews are exhaustive, I'm forced to use the Office Suites and that drives me batty. I can't use LaTeX, as there are others who don't use it and I'm generally confused by Office suites as it always manages to NOT do what I think it should.

No Joy.

Aligning Text in Emacs Buffers

Surprisingly, I found this a bit hard to do. As an example, I wanted to align

4000 1 2
11 1 44	 
1 0000 999
as
4000	 1	 2
11	 1	 44	 
1	 0000	 999

After checking the documentation, I found that align.el is the built-in library that could be used. Trying it as M-x align on the marked text didn't work nor did the regexp option with [[:space:]]. Then I checked the emacswiki for alignment but didn't find an example there that worked with numbers.

Edited the wiki and posted the question and it was quickly answered. From the look of it, it appears that other methods are slightly easier than the solution provided. Especially table-insert function which can be quite easy to create and edit.

Open Office 3.0 beta is out

Just saw this on the LWN site and this is pretty timely. If the thunder can be stolen from the OOXML ratification by the ISO and the ODF standard made more popular,it should make a dent somewhere.

The complete feature list is available on the Openoffice website and the only irritating thing is the line New, Fresh-looking Icons. I'd rather a stable, feature rich editor than "fresh" fancy icons on the screens. We've got that from one vendor whose product upgrades are more like new coats of paint hiding the rot within.

Why take that route at all?

To be honest, though I have Openoffice installed, I've fired it up around 10 times to read versions of Microsoft Office files that I receive rarely. Which is about all since I use LaTeX for typing out documents. Other family members don't notice the difference between the office suites that much, so it helps there.

I suppose these days, it's hard to get excited about Office suites when the majority have Microsoft Office suite as the default desktop tool. Pity, it could save them a whole bunch when they use just a fraction of the feature list.

A few thoughts on the Sun MySQL backtracking

OK, now that all parts of MySQL is going to be free, there are a couple of things which still stand out.

If you want to do a tiered service of free, Incident support contract, service contract, and variations there of, just don't do it immediately after an Open Source buy. This seems pretty obvious....in hindsight.

And when you backtrack, you need to generate the same level of notoriety/publicity that caused you to backtrack, so that people know you came to your senses. This is even more difficult in this Internet drive-by visit,10 sec attention span.

This was an Open Source buy, which means proprietary products selling tactics need to be done differently. If the selling had been along the lines of ; upto 4 CPUs no charge, anything higher, support will cost you, it would be a big deal with respect to OTHER Database vendors.

One, the vast majority of LAMP servers are on low end stuff and individuals tinkering with it, so no one will probably complain on the pricing front.

Second, you raise the bar for the other database vendors by cutting out their low end revenue segment (Oracle editions are free on single CPU machines and for personal use). Forced to compete with MySQL on multiprocessor boxes, you drive the database costs lower, cannibalizing prices in the process.

Three, if you benchmark it on your hardware and make it come out on top,(it's your product after all), you make a good TCO case with zero software acquisition cost for the customer but backed by your company support on YOUR hardware. You use the software to drive the hardware sales.

Heck, if Sun's multicore is as good as they claim, benchmarking on lower Mhz chips with more cores should show some results to crow about?

Let's see how this pans out.