- from
- the position in the current header at which to start the search, -1 to search in the first header
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Type Reason Org.Apache.Http.ParseException if an invalid header value is encountered
Determines the next token. If found, the token is stored in BasicTokenIterator.CurrentToken. The return value indicates the position after the token in BasicTokenIterator.CurrentHeader. If necessary, the next header will be obtained from BasicTokenIterator.HeaderIt. If not found, BasicTokenIterator.CurrentToken is set to null.