Got it, let's fix this VSCode newline replacement issue. Here's the step-by-step that'll work every time:

1. Open Find/Replace: Hit Ctrl+H (Windows/Linux) or Cmd+H (Mac) to bring up the panel.
2. Enable Regex Mode: Click the little .* button in the top-right of the panel—this is the key. Without regex mode, escape sequences like \n or \r just get treated as literal text, which is why you were seeing \r show up instead of actual carriage returns.
3. Find Three Consecutive Line Breaks: In the "Find" box, type \n{3}. This matches three consecutive newlines, and VSCode will automatically handle both LF (\n) and CRLF (\r\n) line endings here—no need to worry about mixing them.
4. Replace With Two Line Breaks: In the "Replace" box, type \n\n. This inserts two newlines, and VSCode will use the same line ending format your file already uses (so if you're working with CRLF files, it'll insert \r\n twice instead of just \n).

If you specifically need to work with carriage returns (\r) instead of newlines (like in old-style Mac files), adjust the patterns:

• Find: \r{3}
• Replace: \r\r

Once you've got those patterns set, click "Replace All" (the icon with the two arrows) and you're done—all triple line breaks will be down to doubles.

内容的提问来源于stack exchange，提问作者Casper Dijkstra