.. 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]

