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Workflows
Coding workflows · Zero-length regex matches
03
A concrete starting point
Collect regex match spans without losing zero-length matches. Test an empty pattern, a lookahead and malformed syntax, ending the scan without manually reusing the same position.
Define the change
Describe the input, expected output and boundaries that must stay intact.
Inspect the work
Review the proposed edits and any commands before relying on their result.
Check the outcome
Compare actual behavior with the expected result. If a check fails, investigate it before applying more changes.
Zero-length regex matches
A concrete starting point
import re
def match_spans(pattern, text):
return [match.span() for match in re.finditer(pattern, text)]The example is a starting point for a real project, not a claim that generated code is already tested. Adjust paths, dependencies and expected behavior to match your application.