e59cda9ee1
i'd guess about 70% of "bad escape" cases occur when someone meant to use a raw string literal because they're passing it directly to Regex::new(). this emits an advisory (Applicability::MaybeIncorrect) help: suggestion to the user that they use an r"" string, on top of the normal notes about looking at the string literal documentation/spec.
7 lines
343 B
Rust
7 lines
343 B
Rust
fn main() {
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let ok = r"ab\[c";
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let bad = "ab\[c";
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//~^ ERROR unknown character escape: `[`
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//~| HELP for more information, visit <https://static.rust-lang.org/doc/master/reference.html#literals>
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//~| HELP if you meant to write a literal backslash (perhaps escaping in a regular expression), consider a raw string literal
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}
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