[]
of a character class are necessary outside of a character class.
Although unescaped opening curly braces {
outside of character classes are allowed in some dialects (JavaScript, Python, and so on),
it can cause confusion and make the pattern less portable, because there are dialects that require escaping curly braces as characters.
For this reason the inspection does not report escaped opening curly braces.
Example:
\-\;[\.]
After the quick-fix is applied:
-;[.]
The Ignore escaped closing brackets '}' and ']' option specifies whether to report \}
and \]
outside of a character class
when they are allowed to be unescaped by the RegExp dialect.
New in 2017.3