As a programmer, sometimes in order to find the line of code that calls a certain function, I often want to query with "(" brackets, for example, I want to find "sum(", but such an error occurs
How to solve it?
Add a backslash before the "(" brackets,
For example, if you want to search for "sum(" just now, you can actually enter "sum\("
\(Interpretation: a(character([^()\s](?:[^()]*[^()\s])?)Explanation: Group 1:[^()\s]Explanation: Characters other than(, and spaces)(?:[^()]*[^()\s])?Explanation: an optional sequence (so as to also match like(a), 1 character in brackets) of strings[^()]*Explanation:(0+ characters except and)[^()\s]Explanation: Characters other than(, and spaces)
\)Explanation: A)character.