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Prevent panic for zero-length input

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Elara 2022-05-23 02:40:16 -07:00
parent 13808e841e
commit d9fa9bddda
1 changed files with 4 additions and 0 deletions
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4
pcre.go
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@ -574,6 +574,10 @@ func replaceBytes(src, repl []byte, sOff, eOff lib.Tsize_t, diff int64) (int64,
// match calls the underlying pcre match functions. It re-runs the functions // match calls the underlying pcre match functions. It re-runs the functions
// until no matches are found if multi is set to true. // until no matches are found if multi is set to true.
func (r *Regexp) match(b []byte, options uint32, multi bool) ([][]lib.Tsize_t, error) { func (r *Regexp) match(b []byte, options uint32, multi bool) ([][]lib.Tsize_t, error) {
if len(b) == 0 {
return nil, nil
}
r.mtx.Lock() r.mtx.Lock()
defer r.mtx.Unlock() defer r.mtx.Unlock()