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would find the instance C/M or C/F in a document and extract that it is important to note that the Race is Caucasian. The same can be done to extract M or F as a Sex meaning Male or Female.
Other than a standard set of POSIX fiags ("midun"), there are some additional, infinit.e-specific, regex fields which are described under XPath, see below.
Using Javascript to generate metadata
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For reference, here is the complete set of flags for xpath (and regex, except for "O"):
- 'H': will HTML-decode resulting fields. (Eg "&" -> "&")
- 'o': if the XPath expression points to an HTML (/XML) object, then this object is converted to JSON and stored as an object in the corresponding metadata field array. (Can also be done via the deprecated "groupNum":-1)
- 'D': described above (also works for regex)above
- 'c': if set then fields with the same name are chained together (otherwise they will all append their results to the field within metadata)
Lookup tables in the Unstructured Analysis Handler
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