rust-lang / rust-lang/rust-clippy

new lint: suggest using raw string literals if literal is more than X % escaped chars

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A-lint L-complexity
Dominant language
Rust
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Description

If a short string literal escapes more than x% of its characters, clippy could suggest using a raw string literal:

let x = "\\/\\\\\"\"/\\";

suggest instead:

let x = r#"\//\\""//\"#;

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Research direction

The issue names no implementation file, test, or entry point. Start by locating Clippy’s existing lint infrastructure for string literals and its suggestion tests, then clarify the escaped-character threshold and raw-literal output behavior before adding coverage for the examples.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
devtools
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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