Contents xix
Creating expressions.................................................................................... 14-3
Expression buttons.................................................................................................... 14-4
Cutting, copying, and pasting expressions................................... 14-4
Formatting expressions.............................................................................. 14-6
Using the = (Equal) command................................................................. 14-6
Using tag names and tag placeholders........................................... 14-8
Using tag placeholders instead of tag names ......................................................... 14-9
Constants.............................................................................................................. 14-9
Arithmetic operators................................................................................... 14-10
String operands ........................................................................................................ 14-10
Relational operators.................................................................................... 14-11
How string operands are evaluated....................................................................... 14-11
Logical operators........................................................................................... 14-12
Bitwise operators.......................................................................................... 14-12
Built–in functions........................................................................................... 14-14
Tag functions............................................................................................................ 14-15
Time functions ......................................................................................................... 14-16
File functions............................................................................................................ 14-20
Math functions ......................................................................................................... 14-21
Security function ...................................................................................................... 14-22
Evaluation order of operators............................................................... 14-22
If–then–else........................................................................................................ 14-24
Nested if–then–else structure ................................................................................ 14-25
Chapter 15
Setting up navigation
Developing a hierarchy of displays..................................................... 15-1
Methods for moving among displays................................................. 15-2
Commands for moving among displays................................................................. 15-3
Reducing display call–up time.................................................................................. 15-4
Where to use RSView32 commands....................................................................... 15-4
Example of navigation methods ........................................................... 15-5
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