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authorbors[bot] <26634292+bors[bot]@users.noreply.github.com>2021-04-18 03:14:27 +0100
committerGitHub <[email protected]>2021-04-18 03:14:27 +0100
commit2ace128dd4c9c2e5d59d21402da53654acb0c7e4 (patch)
tree22d190bf73b49859c8fed6bf6d666f737e32ee7b /crates/stdx
parent19fc1f333f64e76784ced4ea185e62329d0defb6 (diff)
parentf92be7eaabe27387a2d860c3842443bf32e99c73 (diff)
Merge #8560
8560: Escape characters in doc comments in macros correctly r=jonas-schievink a=ChayimFriedman2 Previously they were escaped twice, both by `.escape_default()` and the debug view of strings (`{:?}`). This leads to things like newlines or tabs in documentation comments being `\\n`, but we unescape literals only once, ending up with `\n`. This was hard to spot because CMark unescaped them (at least for `'` and `"`), but it did not do so in code blocks. This also was the root cause of #7781. This issue was solved by using `.escape_debug()` instead of `.escape_default()`, but the real issue remained. We can bring the `.escape_default()` back by now, however I didn't do it because it is probably slower than `.escape_debug()` (more work to do), and also in order to change the code the least. Example (the keyword and primitive docs are `include!()`d at https://doc.rust-lang.org/src/std/lib.rs.html#570-578, and thus originate from macro): Before: ![image](https://user-images.githubusercontent.com/24700207/115130096-40544300-9ff5-11eb-847b-969e7034e8a4.png) After: ![image](https://user-images.githubusercontent.com/24700207/115130143-9cb76280-9ff5-11eb-9281-323746089440.png) Co-authored-by: Chayim Refael Friedman <[email protected]>
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