Function is_candidate_false_positive

src/licensedcode/match.py:2651–2688

Return True if the ``match`` LicenseMatch is a candidate false positive license list match.

(
    match,
    max_length=20,
    trace=TRACE_FILTER_LICENSE_LIST_DETAILED,
)

def is_candidate_false_positive(
    match,
    max_length=20,
    trace=TRACE_FILTER_LICENSE_LIST_DETAILED,
):
    """
    Return True if the ``match`` LicenseMatch is a candidate false positive
    license list match.
    """
    is_candidate = (
        # only tags, refs, or clues
        (
            match.rule.is_license_reference
            or match.rule.is_license_tag
            or match.rule.is_license_intro
            or match.rule.is_license_clue
        )
        # but not tags that are SPDX license identifiers
        and not match.matcher == '1-spdx-id'
        # exact matches only
        and match.coverage() == 100

        # not too long
        and match.len() <= max_length
    )

    if trace:
        print('  MATCH:', match)
        print('  is_candidate_false_positive:', is_candidate,
              'is_license_reference:', match.rule.is_license_reference,
              'is_license_tag:', match.rule.is_license_tag,
              'is_license_intro:', match.rule.is_license_intro,
              'is_license_clue:', match.rule.is_license_clue,
              'coverage:', match.coverage(),
              'match.len():', match.len(), '<=', 'max_length:', max_length,
              ':', match.len() <= max_length
          )
    return is_candidate


def refine_matches(