LAladberg·Mar 13, 2021
Not anymore, hah: https://github.com/Jimbly/regex-crossword/commit/0e603975f21...
In RegEx CrosswordJimbly
regex-crossword
JavaScript2021–2021
Jimbly / regex-crossword
regex-crossword
Implementation of a RegExp crossword.
5Distinct people
5Mentions
0Explicit recommenders
318GitHub stars
What to know before exploring
What it is
Implementation of a RegExp crossword.
GitHub
Where it is used
No documented product use has been verified yet.
What people are saying
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Also in these discussions
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This week on Hacker News
Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 5:04:57 PM UTC.
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Mentions over time
HN mentions by hour5 dated mentions
Observed mentions: 2021-03-12 22:53:50 UTC to 2021-03-13 07:24:03 UTC.
Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.
View mention counts and date ranges
| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| Mar 12, 22:00 | 2021-03-12 22:00:00 UTC | 2021-03-12 23:00:00 UTC | 2 | 0 | 2 |
| Mar 12, 23:00 | 2021-03-12 23:00:00 UTC | 2021-03-13 00:00:00 UTC | 0 | 0 | 0 |
| Mar 13, 00:00 | 2021-03-13 00:00:00 UTC | 2021-03-13 01:00:00 UTC | 1 | 0 | 1 |
| Mar 13, 01:00 | 2021-03-13 01:00:00 UTC | 2021-03-13 02:00:00 UTC | 0 | 0 | 0 |
| Mar 13, 02:00 | 2021-03-13 02:00:00 UTC | 2021-03-13 03:00:00 UTC | 0 | 0 | 0 |
| Mar 13, 03:00 | 2021-03-13 03:00:00 UTC | 2021-03-13 04:00:00 UTC | 1 | 0 | 1 |
| Mar 13, 04:00 | 2021-03-13 04:00:00 UTC | 2021-03-13 05:00:00 UTC | 0 | 0 | 0 |
| Mar 13, 05:00 | 2021-03-13 05:00:00 UTC | 2021-03-13 06:00:00 UTC | 0 | 0 | 0 |
| Mar 13, 06:00 | 2021-03-13 06:00:00 UTC | 2021-03-13 07:00:00 UTC | 0 | 0 | 0 |
| Mar 13, 07:00 | 2021-03-13 07:00:00 UTC | 2021-03-13 08:00:00 UTC | 1 | 0 | 1 |
What Hacker News says
5 sources(I got this attribution fixed upstream: https://github.com/Jimbly/regex-crossword/pull/7.)
In RegEx CrosswordYou can prefer to think of it as having all regexes have an implicit ^ and $
That is literally what is happening:
https://github.com/Jimbly/regex-crossword/blob/master/crossw...
In RegEx CrosswordAs you can see[1], the regex checker is based on the JS RegExp.match method. Each cell is always 1 character long (so, either a letter of some kind or an empty space). The str parameter for the check function is assembled by concatenating these cells together[2], so the input string for an empty line will look something like this: "_______"
Assuming an empty 7-cell row, the regex in question will match 7 times, once for each character. A result of multiple partial matches is not equivalent to getting just one perfect match, which is what the puzzle requires. Internally, the puzzle enforces this requirement by making each Regex rule require a full line match (see line 118: '^' + rule + '$').
Personally speaking, I felt like that was the most intuitive way to interpret the mechanics of the game, so I'm willing to give the programmer a pass
Read the rest
when they slightly modify the regex rule prior to evaluation.
[1]:https://github.com/Jimbly/regex-crossword/blob/8b178f32eba37...
[2]:https://i.imgur.com/PS0BmJ6.png