valid_ regexps
Use valid regular expression syntax.
Details
#DO use valid regular expression syntax when creating regular expression instances.
Regular expressions created with invalid syntax will throw a FormatException
at runtime so should be avoided.
BAD:
print(RegExp(r'(').hasMatch('foo()'));
GOOD:
print(RegExp(r'\(').hasMatch('foo()'));
Enable
#
To enable the valid_regexps
rule, add valid_regexps
under
linter > rules in your analysis_options.yaml
file:
linter:
rules:
- valid_regexps
If you're instead using the YAML map syntax to configure linter rules,
add valid_regexps: true
under linter > rules:
linter:
rules:
valid_regexps: true
Unless stated otherwise, the documentation on this site reflects Dart 3.9.2. Report an issue.