.. include:: ../../../Includes.txt .. _reference-filters-alphabetic: ========== alphabetic ========== Removes all characters which are not in the range a-z or A-Z. With the setting allowWhiteSpace, spaces are allowed as well. .. _reference-filters-alphabetic-allowwhitespace: allowWhiteSpace =============== :aspect:`Property:` allowWhiteSpace :aspect:`Data type:` boolean :aspect:`Description:` If allowWhiteSpace = 1, whitespace is allowed in front of, after or between the characters. :aspect:`Default:` 0 [tsref:(cObject).FORM->filters.alphabetic]