Redundant character escape
Reports redundant character escape sequences that can be replaced with unescaped characters preserving the meaning. Many escape sequences that are necessary outside of a character class are redundant inside square brackets [] 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:
Locating this inspection
- By ID
Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.
RegExpRedundantEscape- Via Settings dialog
Path to the inspection settings via IntelliJ Platform IDE Settings dialog, when you need to adjust inspection settings directly from your IDE.
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
Inspection options
Here you can find the description of settings available for the Redundant character escape inspection, and the reference of their default values.
- Ignore escaped closing brackets '}' and ']'
Not selected
Inspection Details | |
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By default bundled with: | CLion 2024.3, DataGrip 2024.3, DataSpell 2024.1, GoLand 2024.3, IntelliJ IDEA 2024.3, JetBrains Rider 2024.3, PhpStorm 2024.3, PyCharm 2024.3, Qodana for .NET 2024.3, Qodana for Go 2024.3, Qodana for JS 2024.3, Qodana for JVM 2024.3, Qodana for PHP 2024.3, Qodana for Ruby 2024.3, RubyMine 2024.3, WebStorm 2024.3 Writerside 2024.3 |
Can be installed with plugin: | IDEA CORE, 241.SNAPSHOT |