BCGSuite for MFC
CString CBCGPEditCtrl::m_strWordDelimeters

Specifies a set of characters used as word delimiters in the edit control.

This string holds a set of characters used as word delimiters in the edit control. The sequence of characters that do not belong this set is a word. For example, if the character "#" is not defined as a delimiter, then "#include" is treated as a word.

The default set is " \\t\\n,./?<>;:\"'{[}]~`%^&*()-+=!".