- Linus Torvalds added hidden tabs to Kconfig to challenge parsers that can’t handle them.
- Tabs were intentionally added to the common Kconfig file for page sizes to expose faulty parsers.
- Torvalds believes parsers unable to handle tabs shouldn’t be parsing kernel Kconfig files, aiming to force fixes.
Sorry I didn’t realize I had replied with I deleted my comment. I understand some editors allow you to set tab and you can set actual spaces, like in vi. However, personally I feel like hitting tab gives me the whitespace I want for readability already.
For programmatic parsing it is simple because it’s just looking for an HT.