4 ms·
Am I missing something here? The spacing around these homoglyph is almost always noticeably wider than it should be such that I don't understand how you could e
by lol768 5y ago
Am I missing something here? The spacing around these homoglyph is almost always noticeably wider than it should be such that I don't understand how you could ever miss it in any half-decent code review.
if access_level != "user" { // Check if admin
if access_level != "uｓer" { // Check if admin
Come on, that looks obviously off.
- hug 5y agoI thіnk thаt іt іs possіblе thаt you аre missing а fаіrly important point. ... And that point is that none of the vowels in my previous sentence are latin, I guess.
- mkl 5y agoI think you missed some. I can't seem to paste your fake "i"s back in, but here's what I see: $ xxd I thіnk thаt іt іs possіblе thаt you аre missing а fаіrly important point. 00000000: 4920 7468 d196 6e6b 2074 68d0 b074 20d1 I th..nk th..t . 00000010: 9674 20d1 9673 2070 6f73 73d1 9662 6cd0 .t ..s poss..bl. 00000020: b520 7468 d0b0 7420 796f 7520 d0b0 7265 . th..t you ..re 00000030: 206d 6973 7369 6e67 20d0 b020 66d0 b0d1 missing .. f... 00000040: 9672 6c79 2069 6d70 6f72 7461 6e74 2070 .rly important p 00000050: 6f69 6e74 2e0a oint..
- hug 5y agoMade you look. :) I also skipped a bunch of the "I"s.
- mkl 5y agoYes. What browser did you use to make the comment? I can't get all those characters to paste in.
- hug 5y agoFirefox 93.0 on Windows 11. Characters copied & pasted from charmap.exe a: U+0430 "Cyrillic small letter a" e: U+0435 "Cyrillic small letter e" i: U+0456 "Cyrillic small letter Byelorussian-Ukranian i"
- nonameiguess 5y agoIf you were really reviewing that code, Rust has algebraic data types, and access level should be an Enum, not a String. But it's their example. The problem isn't with homoglyphs, though. It's with bidi control characters, which are invisible to a human but not to the compiler, which is how generated code can end up semantically different from source code, which is the actual problem here. What you see in code review would be the first line, even though that isn't actually what is in the source, because an editor that is bidi-aware would show it that way.
- steveklabnik 5y ago> But it's their example It's the example that the researchers provided to us, to be clear about it.
- lol768 5y ago> It's with bidi control characters Sure.. in the original HN submission. I was referring to Rust's built-in homoglyph detection though, which is what the parent comment (and its parent) was about.