intellij-idea - 在 IntelliJ 的代码编辑器中搜索不可打印的字符（回车、制表符等）？

Answer 1

Enabling "Regex" checkbox, you can use the full regex syntax. I was able to search for spaces with \u0020 and for LF with \x0a.

• Carriage return and line feed match \r and \n respectively.
• Arbitrary Unicode character syntax: \uFFFF, where FFFF is a hex Unicode character code.
• Arbitrary ASCII character syntax: \xFF, where FF is an ASCII hex code.