1. ZPL II, ZBI 2, Set-Get-Do, Mirror, WML Programming Guide
  2. ZBI Commands
  3. Command and Function Reference Format
  4. Function Rules
  • ZPL II, ZBI 2, Set-Get-Do, Mirror, WML Programming Guide
Function Rules

Function Rules

Functions built into this interpreter can be used in expressions only. The function names are not case sensitive.
If input parameters exist, they are enclosed in parentheses. If no parameters exist, no parentheses are used.
Variables referenced in the functions could be substituted by functions or expressions of the same type. If the function name ends with a $, it returns a string value. Otherwise, it returns a numeric value.