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Grocery Shopper Data Use

2009 Oct 13, 11:15

Photo of Hostess Pride chicken display from the Library of VirginaQFC, the grocery store closest to me, has those irritating shoppers cards. They try to motivate me to use it with discounts, but that just makes me want to use a card, I don't care whose card and I don't care if the data is accurate. They should let me have my data or make it useful to me so that I actually care.

I can imagine several useful tools based on this: automatic grocery lists, recipes using the food you purchased, cheaper alternatives to your purchases, other things you might like based on what you purchased, or integration with dieting websites or software. At any rate, right now all I care about is getting the discount from using a card, but if they made the data available to me then the grocery store could align our interests and I'd want to ensure the data's accuracy.

PermalinkCommentsidea boring data grocery store

Ajaxian » toDataURL, Canvas, and SVG

2009 Oct 5, 4:27Lets get toDataURL everywhere!PermalinkCommentshtml html5 svg canvas javascript technical

mimesniff - Project Hosting on Google Code

2009 Sep 30, 5:16Open source implementation of the mime sniffing standard that fell out of HTML5.PermalinkCommentshtml5 mime mime-sniffing mimetype opensource open-source technical library google

The WHATWG Blog » Blog Archive » Sniffing for RSS 1.0 feeds served as text/html

2009 Sep 29, 10:54How Firefox and IE7&8 perform feed sniffingPermalinkCommentsrss feed atom mime mime-sniffing sniffing mimetype web browser html5 technical

Comcast Digital Switch Impact on My Windows Media Center

2009 Sep 25, 2:19

Amateur wireless station (LOC)Irritatingly out of line with what their commercials say, in my area Comcast, under the covers of the national broadcast digital switch, is sneaking in their own switch to digital, moving channels above 30 to their own digital format. Previously, I had Windows 7 Media Center running on a PC with a Hauppauge PVR500 which can decode two television signals at once setup to record shows I like. The XBox 360 works great as a Media Center client letting me easily watch the recorded shows over my home network on my normal TV.

Unfortunately with Comcast's change, now one needs a cable box or a Comcast digital to analog converter in order to view their signal, but Comcast is offering up to two free converters for those who'd like them. The second of my two free converters I hooked up to the Media Center PC and I got the IR Blaster that came with my Hauppauge out of the garage. I plugged in the USB IR Blaster to my PC, connected one of the IR transmitters to the 1st port on the IR Blaster, and sat the IR transmitter next to the converter's IR receiver. I went through the Media Center TV setup again and happily it was able to figure out how to correctly change the channel on the converter. So I can record now, however:

  1. I can only record one thing at a time now
  2. Changing the channel is slow taking many seconds (no flipping through channels for me)
  3. The Hauppauge card can't know if the channel change worked. So if it tries to change to HBO (I get it for free with one of the Comcast packages) which is encrypted and the converted won't show, the channel doesn't change but the PC doesn't know it and ends up recording some other channel.
To fix (3) I need to manually go through and remove channels I don't have from the Media Center. To fix (1) I may be able to get a second IR transmitter, a third digital converter, hook it up to one of the other inputs on my Hauppauge, and go back through the Media Center TV setup. There's no fix for (2) but that's not so bad. All in all, its just generally frustrating that they're breaking my setup with no obvious benefit.PermalinkCommentsdigital tv hauppauge mce cable windows media center comcast

Sam Ruby: Chromie Don’t Play That

2009 Sep 24, 3:58"Put more constructively, if GCF mentioned application/xhtml+xml AND intercepted it, my site would “just work”. But that wouldn’t be an “opt in”, a concept that Ian Hickson once described as yet another quirks mode switch."PermalinkCommentschrome google web browser extension webbrowser mime xml xhtml technical

Sam Ruby: First Polyglot Validator Check Deployed

2009 Sep 10, 7:22HTML validator can validate that your document is both HTML and XHTML at the same time.PermalinkCommentshtml5 xhtml html validator technical web polyglot

HTML5 differences from HTML4

2009 Sep 10, 6:50"describes the differences between HTML4 and HTML5 and provides some of the rationale for the changes"PermalinkCommentshtml html5 reference w3c technical

HTML vs. XHTML - WHATWG Wiki

2009 Sep 10, 6:42"Although HTML and XHTML appear to have similarities in their syntax, they are significantly different in many ways."PermalinkCommentshtml html5 xml xhtml whatwg wiki technical

Embeddable Google Document Viewer

2009 Sep 10, 6:11Google Documents can render any PDF on the web simply via an URL API. Step 2, implement HTML5. Step 3, call registerContentHandler('application/pdf', 'http://docs.google.com/gview?url=%s')PermalinkCommentspdf google web internet html5 technical via:waxy

Time/Date Conversion Tool

2009 Aug 28, 3:39

I built timestamp.exe, a Windows command line tool to convert between computer and human readable date/time formats mostly for working on the first run wizard for IE8. We commonly write out our dates in binary form to the registry and in order to test and debug my work it became useful to be able to determine to what date the binary value of a FILETIME or SYSTEMTIME corresponded or to produce my own binary value of a FILETIME and insert it into the registry.

For instance, to convert to a binary value:

[PS C:\] timestamp -inString 2009/08/28:10:18 -outHexValue -convert filetime
2009/08/28:10:18 as FILETIME: 00 7c c8 d1 c8 27 ca 01

Converting in the other direction, if you don't know what format the bytes are in, just feed them in and timestamp will try all conversions and list only the valid ones:

[PS C:\] timestamp -inHexValue  "40 52 1c 3b"
40 52 1c 3b as FILETIME: 1601-01-01:00:01:39.171
40 52 1c 3b as Unix Time: 2001-06-05:03:30:08.000
40 52 1c 3b as DOS Time: 2009-08-28:10:18:00.000
(it also supports OLE Dates, and SYSTEMTIME which aren't listed there because the hex value isn't valid for those types). Or use the guess option to get timestamp's best guess:
[PS C:\] timestamp -inHexValue  "40 52 1c 3b" -convert guess
40 52 1c 3b as DOS Time: 2009-08-28:10:18:00.000

When I first wrote this I had a bug in my function that parses the date-time value string in which I could parse 2009-07-02:10:18 just fine, but I wouldn't be able to parse 2009-09-02:10:18 correctly. This was my code:

success = swscanf_s(timeString, L"%hi%*[\\/- ,]%hi%*[\\/- ,]%hi%*[\\/- ,Tt:.]%hi%*[:.]%hi%*[:.]%hi%*[:.]%hi", 
&systemTime->wYear,
&systemTime->wMonth,
&systemTime->wDay,
&systemTime->wHour,
&systemTime->wMinute,
&systemTime->wSecond,
&systemTime->wMilliseconds) > 1;
See the problem?

To convert between these various forms yourself read The Old New Thing date conversion article or Josh Poley's date time article. I previously wrote about date formats I like and dislike.

PermalinkCommentsdate date-time technical time windows tool

Dive Into HTML 5 by Mark Pilgrim with illustrations from the Public Domain

2009 Aug 21, 3:26"Dive Into HTML 5 seeks to elaborate on a hand-picked Selection of features from the HTML 5 specification and other fine Standards. I shall publish Drafts periodically, as time permits." Lovely design.PermalinkCommentsvia:waxy reference programming howto design html5 typography mark-pilgrim html web development technical

Creating Accelerators for Other People's Web Services

2009 Aug 18, 4:19

Before we shipped IE8 there were no Accelerators, so we had some fun making our own for our favorite web services. I've got a small set of tips for creating Accelerators for other people's web services. I was planning on writing this up as an IE blog post, but Jon wrote a post covering a similar area so rather than write a full and coherent blog post I'll just list a few points:

PermalinkCommentstechnical accelerator ie8 ie

Recap Firefox Extension | "turning PACER around"

2009 Aug 14, 3:55The government program PACER is an online archive of court records and even though the documents are public domain, PACER charges access to them ostensibly to pay for PACER. This plugin uses the Internet Archive as a kind of free intermediate cache, rewriting the PACER HTML to reference the free Internet Archive versions of the documents when available and uploading PACER documents to the IA cache when you download one it doesn't yet have.PermalinkCommentsvia:waxy firefox government politics research reference legal law plugin technical

Ajaxian » W3C publish first working draft of File API

2009 Aug 12, 5:02W3C File API makes it to first published working draft. Like the use of data URLs, don't like the new filedata URLs.PermalinkCommentshtml5 w3c file upload script url data-scheme technical

Internationalized Resource Identifiers (IRIs)

2009 Jul 29, 5:48The new draft IRI spec to replace RFC 3987. "To accomodate widespread current practice, additional derivative protocol elements are defined, and current practice for resolving IRI-based hypertext references in HTML are outlined."PermalinkCommentsiri uri rfc html reference technical

IE8 Search Providers, Accelerators, and Local Applications Hack

2009 Jul 25, 3:23

There's no easy way to use local applications on a PC as the result of an accelerator or a search provider in IE8 but there is a hack-y/obvious way, that I'll describe here. Both accelerators and search providers in IE8 fill in URL templates and navigate to the resulting URL when an accelerator or search provider is executed by the user. These URLs are limited in scheme to http and https but those pages may do anything any other webpage may do. If your local application has an ActiveX control you could use that, or (as I will provide examples for) if the local application has registered for an application protocol you can redirect to that URL. In any case, unfortunately this means that you must put a webpage on the Internet in order to get an accelerator or search provider to use a local application.

For examples of the app protocol case, I've created a callto accelerator that uses whatever application is registered for the callto scheme on your system, and a Windows Search search provider that opens Explorer's search with your search query. The callto accelerator navigates to my redirection page with 'callto:' followed by the selected text in the fragment and the redirection page redirects to that callto URL. In the Windows Search search provider case the same thing happens except the fragment contains 'search-ms:query=' followed by the selected text, which starts Windows Search on your system with the selected text as the query. I've looked into app protocols previously.

PermalinkCommentstechnical callto hack accelerator search ie8

Dave's Blog Entries Last Year

2009 Jul 19, 4:00

Inspired by one of Penn's (of Penn & Teller) articles in which he mentions he has his computer tell him what he wrote in his journal that day the previous year, I've wanted to implement a similar thing with my blog. Now that, as I mentioned previously, I've updated my blog such that its much easier to implement search and such, I've added date range filtering to my site's search. So now I can easily see what on Delicious and my blog I was doing last year.

I've also otherwise updated search on this site. You can now quote terms to match an entire string, stick 'tag:' in front of a term to only match that term against tags as opposed to the title and body of the entry as well, and you can stick '-' in front of a term to indicate that it must not be found in the entry.

Telescope photo from Flickr Commons
PermalinkCommentsblog search homepage

Baseball Game Friday, House Things Previously

2009 Jul 11, 2:47

Mariners vs Rangers, Safeco Field, SeattleOn Friday Sarah and I went to the Mariners vs Rangers game at Safeco Field with Eric and Jane. The Mariners lost but then before the game the announcement made outside the stadium guaranteed the best service and a good time, not a winning game -- and they were right about the good time.

The night before, we saw The Hangover which was very funny and included Zach Galifianakis who was great. Incidentally, take a look at some of Zach's Between Two Ferns.

Last weekend Sarah and I mounted the TV to the wall which was exciting and we saw a mouse in the house!

PermalinkCommentstv baseball personal mouse house

Eat Pants - Interactive Fiction Sessions from my Server Logs

2009 Jun 29, 4:19

I've looked at my web server logs previously to see if anyone had used my Web Frotz Interpreter and until recently didn't realize that awstats (the web server log report generator) was truncating the query from my URL, so I couldn't tell that anyone was actually using it. But after grepping the logs manually I've pulled out the URLs of visitor's text adventure sessions. If you'll recall, my Web Frotz Interpreter stores the game state in the URL so its easy to see user's game states in the web server logs.

I've put some of the links up on the Web Frotz Interpreter page. Some of the interesting ones:

PermalinkCommentsserver-logs technical zork frotz pants interactive-fiction uri if
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