===== DateExtractor =====
//Helper extractor plugin for extracting historical date information from text.//


The following table lists all of the configuration options available for DateExtractor. 

^Option^Description^Value^
^//DateExtractor Options//^^^
| **extract_historical_years** |Extract time-period information from historical documents.  This is stored as metadata with the document. There is a search interface for this metadata, which you can include in your collection by adding the statement, "format QueryInterface DateSearch" to your collection configuration file. | |
| **maximum_year** |The maximum historical date to be used as metadata (in a Common Era date, such as 1950). |//Default: 2013// |
| **maximum_century** |The maximum named century to be extracted as historical metadata (e.g. 14 will extract all references up to the 14th century). |//Default: -1// |
| **no_bibliography** |Do not try to block bibliographic dates when extracting historical dates. | |