There are ten formats of the @ON statement in which actions can be triggered depending on the search term. The search term defines one or more strings which can be searched for in a search range.
Alongside simple characters, the search term can include wildcards which act as placeholders for groups of characters. The wildcards stand either for precisely one character or for a string of any length. When a wildcard is interpreted, pattern matching occurs during the search operation.
The search term is bounded by a delimiter character on both the left and right. There are two different delimiters.
Depending on the delimiter character that is used, the start and/or end of the hit string is determined either simply by the hit string or by the hit string plus additional text delimiter characters before or after the search term. The two possible delimiter characters can be combined as desired when the search term is entered directly. The strings that are considered to be hits depend on the employed delimiter characters.
If wildcards are interpreted or if text delimiter characters are searched for in the search object then the search term and the hit strings may not be identical. In such cases, it is even possible that the individual hit strings will differ from one another.
The search term is only searched for in the line or column ranges which are specified inthe @ON statement. The following sections discuss the details which are of relevance when searching using the @ON statement.