It server the same purpose, placeholder for a word I couldn't think of, and wouldn't naturely appear in the text. Plus for me I could hammer out the four characters in frustration too, for not being able to think of the word/term I wanted.
Fun fact: the Ghost.org editor looks for TK
But I can be wrong (maybe it's not from Doctorow, maybe the article did not even claim the paternity of coming up with TK but it was me badly understanding it, ...)
This assumes you're writing according to guidelines that insist you spell out all numbers. i.e. 58 is always intentionally "fifty-eight", so "58" must be your own meta text.
AP style only spells out one through nine. 10 and above are written as numerals. So, you'd get 10 tags, not 100.
I think the regex would be: /(?<!\d)\d{1}(?!\d)/
What? There exists such a guideline, which is not limited to very small numbers that can be written in at most two words?
That would have you writing things like one million, four hundred fifty-three thousand, one hundred fifty-eight instead of 1,453,158.
"TK: for the thousand one hundred and eleventh time, ditch this idiotic editing job"
My parent comment wasn't an entirely unreasonable idea though [2]. There's generally a less than one percent chance of a high value two-digit number occurring. Three digits and above are even less likely.
[1]: https://apstylebook.com/ask_the_editors/style_guidance
[2]: https://en.wikipedia.org/wiki/Benford%27s_law#Generalization...
Because we know from the software engineering discipline that TODOs never get done, so the safe thing is to avoid that with TK.
add tk when you hit a wall (abbreviated from 'to come', yet spelled with k as tc appears in many words)
Ratios (count / total) and percentages:
PG: 0.00047%
TK: 0.00046%
KK: 0.00045%
HQ: 0.00042%
FN: 0.00042%
Every other one here I'd expect to see: Postgres, kk/okay (and my initials), headquarters, function. Of course there's Tcl/Tk but not used nearly as much as it could.