It looks almost exactly like the Rust you wrote, just in WGSL syntax.
Backtracking: everyone in the field knows that backtracking engines (PCRE, java, dotnet, javascript, PHP, ruby, python..) are bad because they are the poster child of denial of service attacks. O(2^n) match time complexity is not good. most backtracking implementations are a combination of clever optimizations duct taped to a very slow engine - for simple cases it works well, but using a pattern that is not affected by the optimizations, you get to see what the “real” worst-case behavior looks like.
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Минобороны ОАЭ сообщило об отражении ракетной атаки со стороны Ирана02:20
Фото: Ajeng Dinar Ulfiana / Reuters，详情可参考谷歌浏览器下载
And relatedly, in recent years I started developing a guilty displeasure for coding. But fortunately we have AI coding agents now so that problem seems permanently solved.
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