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dtSearch Text Retrieval Engine Programmer's Reference
IOptions::AlphabetFile Property
Syntax
IDL
__property BSTR AlphabetFile;

Name of dtSearch alphabet file to use when parsing text into words.

The alphabet file determines which characters are letters and what the rules are for handling capitalization and punctuation. If blank, a default alphabet will be used. 

The alphabet file only controls the indexing of characters in the range 32-127. Unicode character properties control the treatment of other characters.

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