Emacs: Regex Backslash in Command Prompt

Regex in Emacs Command's Prompt

In emacs command's prompt, regex is not a string. Do not type the the string quote.

But because it is not a string, it does not understand string syntax such as \n for newline. You must use a literal newline or tab.

• Emacs: How to Insert a Tab Char or Newline

• Match a literal dot. → \.
• Match a literal backslash. → \\
• Match a literal asterisk. → \*
• Match a literal question mark. → \?
• Match a literal plus sign. → \+
• Match a literal vertical line. → \|
• Match literal square brackets. → \[something\]
• Match literal parenthesis. → (something)