Patterns

Patterns are match criteria for input data. You must specify at least one pattern at Message level. This pattern will be used as the Event trigger. If the StreamServer finds matching input in the specified area, the Event will be triggered.

Block patterns

If the PageIN configuration contains blocks, you must specify at least one pattern per block in order to uniquely identify the block.

To create a pattern

1	Select Insert > New Pattern.

2	On the PageIN sheet, draw a rectangle around the text segment you want to use as pattern.

3	In the Properties view, specify the properties. See Pattern properties.

Multiple patterns

You can use multiple patterns. By default, the match criteria defined for all patterns must be fulfilled in order to trigger the Event, or to identify a block. This corresponds to specifying the following rule for the patterns:

pattern1 AND pattern2 AND ... patternN

where pattern1 etc. is the pattern name, i.e. the Label property for the pattern.

The Rule property for the Message and blocks enables you to specify custom rules for when to trigger an Event or identify a block. You can use the logical operators AND, OR and NOT in a rule.

Valid characters for the pattern names in a rule

A-Z

a-z

0-9

_ (underscore)

. (dot)

Example 1

A rule

Pattern1 AND (Pattern2 OR Pattern3)

 

Example 2

Another rule

Pattern1 NOT $countrycode=LAT