doc_markdown should ignore things which just contain acronyms

描述

貢獻者指南

技術棧

rust

領域

toolingdeveloper experience

議題類型

feature

難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。

3

預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。

1-3 hours

活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。

fresh

清晰度議題是否清楚說明預期改動、驗收標準和下一步。

mostly clear

前置要求

Rust basicsclippy architecturelint implementation

新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。

60

研究方向

The issue requires modifying the doc markdown lint in clippy to ignore strings that are acronyms (e.g., DirectX, OpenGL). The logic should treat such strings as not requiring backticks. The implementation should be in the lint's code, likely in `clippy lints/src/doc.rs`. There is a comment suggesting to check if a word is all caps with a single lowercase letter at the end? Actually the issue says for camel case it should have at least two camelcase words each with at least one lowercase letter. So the fix is to adjust the camel case detection to exclude strings that are just acronyms (all caps or with a lowercase ending?). The contributor should explore the existing doc markdown implementation and add a condition to skip words that consist only of uppercase letters or have a single trailing lowercase letter (like DirectX). Look at existing tests in `tests/ui/doc.rs` for reference.