Sunday, July 12, 2009

Chrome: Darn the Luck

It looks like my favorite feature of the Linux version of Chrome, the lack of Flash support, is going the way of the dodo: http://h3g3m0n.wordpress.com/2009/07/12/linux-chrome-flash-ext/

It's nice to have a browser that doesn't support Flash simply because so many web sites use it for advertising content. Perhaps advertising is the predominant use of Flash.

Saturday, July 11, 2009

Fixing a Broken Link




In November I posted about my last mile, and the entry included the Xohm logo. But I linked to it rather than grabbing my own. And the link rotted. So, I've just grabbed my own and will update the broken link in the old post.

gFTP Much Nicer than Nautilus for sftp

Gnome ships with GUI sftp support built into nautilus, but it's not ideal. I was living with it, and do prefer it over the command line version (I'm getting lazy in my old age) but recently have been evaluating xfce as an environment. This is a whole different story, but I'd like to find a less bloated, less buggy environment than Gnome. Xfce doesn't seem to ship with a GUI sftp client, which is totally fine--why ship software that many users won't use?

Looking around, I found gFTP. So far, it seems gFTP is as good as nautilus in every respect. A major difference, however, is that when transferring files to and fro, gFTP maintains modification times. This way, if I have two copies of the same file in two (or more) places, they all have the same modification time. Seems pretty basic and pretty obvious--and very important--but nautilus gets it wrong.

Is my preference for a GUI sftp client really a sign of laziness? I don't think so. In many cases command line tools are quicker and easier, but when maintaining web directory trees it's nice to be able to quickly glance at two direcoties and see if their contents match. gFTP does have one quirk that's inconvenient in this regard, however, in that it sorts files and directories differently. IMHO, this is another sign of Linux developers not understanding Unix: a directory is, like a file, a link in a directory, darn it, so sort it like other links.

Thursday, July 9, 2009

Image Editing



I've been a bit frustrated (so, what else is new?) by image manipulation software on Ubuntu. The GIMP makes even the simplest operations complicated. Imagemagick[sic] is sufficiently buggy as to occasionally be useless, though it usually works fine for simple things. I installed a KDE package on my work machine, but of course that comes with an amazing amount of baggage that stays resident after the program terminates.

What's a guy to do? Grin and bear the GIMP? I don't think so.

As a partial solution, I've installed a version of LView Pro that I registered (and paid for) in 1996 and used to use on Win95 and NT4. WINE certainly has improved in recent years. LView might be sufficient, except it doesn't deal with PNG or EPS images. Neither of these is a surprise: Windows has never had the Postscript support Unix folks assume, and whether PNG was around 13 years ago or not, I'd never heard of it. Still, the LView guys did a nice job with this program.

My immediate plan is to use ImageMagick to convert among file formats and, whenever ImageMagick barfs on an image, use LView for the actual editing. We'll see how that goes...

Sunday, July 5, 2009

To Use Blackboard is to Hate Blackboard

It may be that Blackboard isn't so bad from the student side, but it's terrible from the faculty side. This afternoon I was trying to create a quiz and Blackboard locked up before I was halfway done. A couple days ago the same thing happened to me inside the grade center.

BTW, who thought the new grade center would be an improvement over the old gradebook? It's harder to use, and very cumbersome. Almost anything a faculty member does causes a page reload while some slow script somewhere runs. Lovely.

Wednesday, June 10, 2009

Chrome on Ubuntu

I've started using Chrome on one of my Ubuntu Linux machines, and kinda like it. It's fast, and pointing it at a PeopleSoft SA page doesn't lobotomize it (Firefox 3 slows to a crawl when SA is visited and remains at a snail's pace until the browser is closed--generally a mercy killing).

A few minuses to date:

  1. The formatting on some of the PeopleSoft SA pages is sufficiently messed up as to be unreadable. It's not as though they were all that readable to begin with, though.

  2. It doesn't seem aware of my Flash installation, which may be a simple configuration issue.

  3. I can't right-click on an image and ask it to never load images from that particular server ever again. Thus I see a lot of ads I've trained Firefox to not fetch.

Sunday, June 7, 2009

The Bombe: Prelude to Modern Cryptanalysis

There is a small mistake in the NSA publication The Bombe: Prelude to Modern Cryptanalysis available at the National Cryptologic Museum at Ft. Meade. The bibliography lists Isadore Jacob "Jack" Good as J.I. Good rather than I.J. Good. Anyone active in the Va. Tech Philosophy Club circa 1980 knows the correct ordering of the initials.

Another error in the same publication has been noted in Cryptologia.

Wednesday, June 3, 2009

Web Pages by People Who Don't Understand Algorithms

I've used the Online Etymology Dictionary a few times and basically like it. But it's used to look up words. Words have spellings. To browse, picking the first letter, then the second, then the third, etc. would make the most sense. Did I mention that words have spellings? This would be easily implemented as a trie. Instead, we're expected to pick the first letter, and then use a number, like page 23 of the letters starting with 'b'. Two explanations: (1) whoever designed the page didn't care; (2) whoever designed the page didn't have a software background, and so never thought to use a trie.

Monday, June 1, 2009

Improving Usability of myUMBC Continued

In February I talked a bit about improving myUMBC usability. I've gone a bit farther, by partially disabling the spotlight "feature." Here's my up-to-date UMBC-specific karma blocker code:


# Block myUMBC 404 not found chipmunk
[group]
score=10
rule=$url$='dramatic_chipmunk.flv'

# Block UMBC Alerts
[group]
score=10
rule=$url=='https://my.umbc.edu/modules/dashboard/images/alert_bubble.png'

# Block myUMBC Rotating Banner
[group]
score=10
rule=$url^='https://my.umbc.edu/shared/modules/spotlight/'

# Block myUMBC Rotating Banner
[group]
score=10
rule=$url^='https://my.umbc.edu/modules/spotlight/'

This is for the Firefox Karma Blocker add-on, which works nicely.

Saturday, May 30, 2009

Heard on Car Talk

Congressmen should wear uniforms like NASCAR drivers so that constituents can see their corporate sponsorships.

Tuesday, May 19, 2009

Thew and Fro

Spell checkers allow users to add words to their dictionaries. It would be nice if they would also allow users to subtract words. Two frequent typos of mine are 'thew' for 'the' and 'fro' for 'for'. Unfortunately, both typos are English words, though neither is a word I use at all often. Almost always when either occurs in my writing it's a typo. So why can't I tell ispell or Open Office or Firefox or Thunderbird that these are words that should be flagged as misspellings?

Actually, I could write a postprocessor for LaTeX documents that flags likely typos, but it would be harder to do this for a clumsier tool, like the WYSIWYG tools. Also this points out a problem with non-text-based tools for text-based applications. A postprocessor would work fine for text files, which means it would be more widely applicable than to just LaTeX, but every GUI has its own spell checker, with its own dictionary, and so they don't integrate well with each other, with simple tools, etc.

Going back to elm or mutt for e-mail would solve part of this problem, by raising my productivity for basic e-mail by allowing the editing of e-mail in emacs, but they make multimedia e-mail a bit more of a challenge. OTOH, perhaps they've improved attachment handling in the past few years--worth a look.

Sunday, May 17, 2009

American Film Institute Member Benefits

I belong to the AFI, and like being a member. The AFI Silver, in Silver Spring, MD, is perhaps the best place in the Washington/Baltimore area to see a film. However, one annoying thing keeps cropping up, and more, it seems, this year than in the past.

When a member renews, the AFI sends a few member passes for free admission to a show. The problem is every time, or so it seems, that I try to use one of these free passes, I'm told passes are not being accepted for this particular show. Last night I couldn't use a member pass to see "Limits of Control." The theatre was not remotely close to full. What's the problem? Why do they bother to give member benefits that cannot be used?

In '07 and '08 I don't recall this problem cropping up nearly as frequently. Something's changed in the theatre management, and not for the better.