Format of Expressions

The use of parenthesis, spaces and quotes in an expression is important. If you do not follow the rules given below you will get error messages:

Text must be enclosed in quotes, either ' apostrophes or | vertical bars:

'This is text ' |and this is text|

There must be a space before and after an operator. For example:

!X + !Y

In general, you do not need spaces before or after parenthesis, except when a name is followed by a parenthesis. If there is no space, the parenthesis will be read as part of the name. For example:

(Name EQ /VESS1 )