3.9.11 Special parameters: empty strings and the escape character

Entering empty strings as parameters
If you want the parameter you enter to be an empty string (i.e. nothing), use two single quote marks: ''

You can use this with the equals, matches or simple match operators.

You can also use '^$' or '^\s*$' with the operator matches to check that a text area is empty.

You can also use '^$' with the operator matches to check that a text area is empty.

\includegraphics[height=2cm]{lightbulb} If a component looks empty, but entering an empty string doesn't work, it may be worth asking a developer what is actually in the component.

The escape character
Some symbols have a special meaning in Jubula . If you want to use the symbol without the special function, you have to escape it. The symbol to negate any special function of the following symbol is a backslash: ($\backslash$).

See the Reference Manual (-->Reference Manual [*]) for more details on special symbols and escaping them.

\includegraphics[height=2cm]{lightbulb} When you are using regular expressions, you will also need to think about which symbols need neutralising. Sometimes more than one backslash is necessary.



Copyright BREDEX GmbH 2011. Made available under the Eclipse Public License v1.0.