Rules of Variable Substitution

A KSL command can contain expressions including both KSL and AutoEdit variables. Variable substitution is performed in the following order:

1. All KSL variables (variables preceded by a single % character) are substituted sequentially from left to right.

   Example

   TYPE '%A %%$PLUS 1'

   Assuming that the value of %A is 1, variable substitution begins with the KSL variable substituted as follows:

   TYPE '1 %%$PLUS 1'

2. If the resulting expression contains AutoEdit symbols (in this example, %%$PLUS), variables are substituted sequentially from right to left until the symbol is assigned a value.

   In the above example, TYPE ‘1 %%$PLUS 1’ resolves to TYPE ‘2’.

The largest number that can be handled by mathematical AutoEdit operations is 2³¹ - 1, that is, 2147483647.