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# Parsing Flags

Options for parsing words to add to the text.

## Discussion

Specify these options for [`LSMTextAddWords(_:_:_:_:)`](/documentation/LatentSemanticMapping/LSMTextAddWords(_:_:_:_:)).

## Topics

### Constants

[`var kLSMTextApplySpamHeuristics: Int`](/documentation/LatentSemanticMapping/kLSMTextApplySpamHeuristics)

An option that specifies the parser should attempt to find words in hostile text.

[`var kLSMTextPreserveAcronyms: Int`](/documentation/LatentSemanticMapping/kLSMTextPreserveAcronyms)

An option that specifies the parser shouldn’t map all-uppercase words to lowercase.

[`var kLSMTextPreserveCase: Int`](/documentation/LatentSemanticMapping/kLSMTextPreserveCase)

An option that specifies the parser shouldn’t change any words to lowercase.


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