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licensecheck: add Trace function #35

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licensecheck: add Trace function #35

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7 changes: 7 additions & 0 deletions scan.go
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Original file line number Diff line number Diff line change
Expand Up @@ -249,3 +249,10 @@ func (s *Scanner) licenseURL(url string) (License, bool) {

return License{}, false
}

// Trace controls whether DFA execution prints debug tracing when stuck.
// If n > 0 and the DFA has followed a path of at least n symbols since the last
// matching state but hits a dead end, it prints out information about the dead end.
func Trace(n int) {
match.TraceDFA = n
}