The following condition constants are supported.
Control characters
Control characters are special characters for which there is no way to enter them into a constraint other than by using the constant. For example, no mechanism exists to add a carriage return to a constraint without using the CR control character.
The control characters are treated as strings within the conditions language and can therefore be used wherever a string is valid.
Control character |
Description |
---|---|
Back |
Backspace |
CR |
Carriage return |
CRLF |
Carriage return followed by line feed |
FormFeed |
Form feed |
LF |
Line feed |
NewLine |
New line |
NullChar |
Null character |
Tab |
Tab character |
VerticalTab |
Vertical tab character |
Days of the week
The seven days of the week are available as constants. These constants are treated as integer values within the condition.
Constant |
Value |
---|---|
Sunday |
1 |
Monday |
2 |
Tuesday |
3 |
Wednesday |
4 |
Thursday |
5 |
Friday |
6 |
Saturday |
7 |
System constants
The following system constants are supported.
CurDir - The current active system directory. This value is treated as a string.
Now - The system date and time. This value is determined when the condition is evaluated, not at the time it is defined. This value is treated as a date/time value.
Unit of measure constants
The following system constant is supported.
PI - The mathematical constant pi.
UOM constants are treated as SI values.