this post was submitted on 27 Dec 2024
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After needing to find a small delimiter for my data format I started wondering if I could use 0x1E-0x1F?

They are part of the control codes so I thought they might do something weird?

https://en.wikipedia.org/wiki/C0_and_C1_control_codes#Field_separators

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[–] [email protected] 8 points 1 week ago* (last edited 1 week ago) (3 children)

consider what happens if the actual data contains them.

Then you'd escape them by using another character in front. But if their data format is ASCII text or is guaranteed not to have characters below ASCII 32 then using ASCII delimiters is fine.

[–] SpaceNoodle 10 points 1 week ago (2 children)

But who escapes the escape characters?

[–] [email protected] 9 points 1 week ago

It's escape characters all the way down

[–] [email protected] 1 points 1 week ago (1 children)
[–] SpaceNoodle 7 points 1 week ago

Use emoji as escape characters

[–] lurklurk 5 points 1 week ago* (last edited 1 week ago)

Then you can just use a conmon delimiter like comma or semicolon or something. It's better even as you're less likely to have something that seems to work until your exotic delimiter pops up in the data.

Better yet, use a commonly used data format like csv or json and don't build your own

[–] [email protected] 3 points 1 week ago

Indeed. Escape characters add a lot of additional complexity, footguns, and performance penalties.