Software
Customisation Guide
PML Expressions
: Format of Expressions
Format of Expressions
The use of brackets, spaces and quotes in an expression is important. If the user does not follow the rules given below they 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, the user does not need spaces before or after brackets, except when a name is followed by a bracket. If there is no space, the bracket will be read as part of the name. For example:
(Name EQ /VESS1 )
1974 to current year.
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