All Downloads are FREE. Search and download functionalities are using the official Maven repository.

org.sonar.l10n.py.rules.python.S6328.html Maven / Gradle / Ivy

There is a newer version: 4.23.0.17664
Show newest version

Why is this an issue?

The regex function re.sub can be used to perform a search and replace based on regular expression matches. The repl parameter can contain references to capturing groups used in the pattern parameter. This can be achieved with \n to reference the n’th group.

When referencing a nonexistent group an error will be thrown for Python < 3.5 or replaced by an empty string for Python >= 3.5.

Noncompliant code example

re.sub(r"(a)(b)(c)", r"\1, \9, \3", "abc") # Noncompliant - result is an re.error: invalid group reference

Compliant solution

re.sub(r"(a)(b)(c)", r"\1, \2, \3", "abc")

Resources

  • re.sub - Python Documentation




© 2015 - 2024 Weber Informatics LLC | Privacy Policy