DACTAL.org
@dactal.org
A notional organization for an experimental query language.
You have a rack with no good Scrabble plays. Which tile is the best to unload?
Here's that question asked in DACTAL.
Here's that question asked in DACTAL.
November 5, 2025 at 12:25 AM
You have a rack with no good Scrabble plays. Which tile is the best to unload?
Here's that question asked in DACTAL.
Here's that question asked in DACTAL.
The Gallery now includes a DACTAL Sudoku solver! Or, more accurately, a Sudoku solution-process revealer.
dactal.org/dactal.html?...
dactal.org/dactal.html?...
October 2, 2025 at 4:14 PM
The Gallery now includes a DACTAL Sudoku solver! Or, more accurately, a Sudoku solution-process revealer.
dactal.org/dactal.html?...
dactal.org/dactal.html?...
Data access for computer programs vs data exploration for humans.
![On the left: ATProto API page for the feed.repostedBy endpoint, describing mostly HTTP mechanics.
On the right: `.post reposters` DACTAL extension in the middle of this query:
|reposted by=(.post.uri.post reposters.reposters.handle:-[handle.invalid]);](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:4n4l7srkx4g6dqu6oxhpy4lr/bafkreie4dtaghaw3ye6ouqkj6ft5yw2clzyobfk5inzhfgd6wp4d6gp5zu@jpeg)
September 23, 2025 at 2:10 PM
Data access for computer programs vs data exploration for humans.
Sometimes you want (or just need) the results of another query in the middle of the one you're writing. Highlight the subquery and hit Command-U to unpack it.
August 27, 2025 at 3:08 PM
Sometimes you want (or just need) the results of another query in the middle of the one you're writing. Highlight the subquery and hit Command-U to unpack it.
Saved relative queries let you encapsulate complexity, like
AEIODLT
.possible words
.by added letter
And now you can decapsulate it again with command-I (for Inline).
AEIODLT
.possible words
.by added letter
And now you can decapsulate it again with command-I (for Inline).
August 22, 2025 at 3:36 PM
Saved relative queries let you encapsulate complexity, like
AEIODLT
.possible words
.by added letter
And now you can decapsulate it again with command-I (for Inline).
AEIODLT
.possible words
.by added letter
And now you can decapsulate it again with command-I (for Inline).
If it doesn't, what platform/browser? And do you get any console errors?
August 15, 2025 at 11:22 PM
If it doesn't, what platform/browser? And do you get any console errors?
August 1, 2025 at 7:13 PM
One of my guesses today revealed a bug in this. Gotta use ".." instead of "." in the parse routine to preserve duplicate letter/color pairs in the guess! Here's the difference:
dactal.org/dactal.html?...
dactal.org/dactal.html?...
July 21, 2025 at 7:08 PM
One of my guesses today revealed a bug in this. Gotta use ".." instead of "." in the parse routine to preserve duplicate letter/color pairs in the guess! Here's the difference:
dactal.org/dactal.html?...
dactal.org/dactal.html?...
To go with /@x, which groups consecutive sequences with shared x properties, you can now also do /@@y to group sequences that start with each occurrence of y.
E.g grouping streams into listening sessions broken by gaps of more than 10 minutes between songs:
E.g grouping streams into listening sessions broken by gaps of more than 10 minutes between songs:
![listening sample....pairs
||px=@,
clock=(....(.pair.ts),timediff);
this<pair;
px=(this.px);
clock=(this.clock);
silence=[=clock-ms_played];
restart=(.silence:>60000);
.(.pair:px=1,@2)/@@restart](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:4n4l7srkx4g6dqu6oxhpy4lr/bafkreifssrzxsrfuzwh3zcrjhnc2dmtxq4j27aecqvkzfrzzzzkizinvzy@jpeg)
July 18, 2025 at 2:16 AM
To go with /@x, which groups consecutive sequences with shared x properties, you can now also do /@@y to group sequences that start with each occurrence of y.
E.g grouping streams into listening sessions broken by gaps of more than 10 minutes between songs:
E.g grouping streams into listening sessions broken by gaps of more than 10 minutes between songs:
That version didn't account for repeat letters correctly. This one might.
July 5, 2025 at 3:41 AM
That version didn't account for repeat letters correctly. This one might.
Huh, worked out the Wordle logic in DACTAL form.
July 4, 2025 at 9:29 PM
Huh, worked out the Wordle logic in DACTAL form.