TOnAutoReplaceEvent is the type for event that occurs before substring in SyntMemo text is auto-replaced.
This event may be used by the user to change AReplace before replacement. It's useful, for instance, when it's necessary to replace not a single word or word combination but a multiline string.
APos is a current zero-based position in SyntMemo text.
AWord is a string that might be replaced.
AReplace is a string that might replace AWord in SyntMemo text.
Accept indicates whether replace can be done.