Delimiters
Delimiters in PL/MX are special characters or combination of special characters that begin, end, or separate syntactic elements of the language. The following table lists the PL/MX delimiters:
| Delimiter | Meaning |
| ' (apostrophe) | Begin or end a character string |
| ( | Begin expression |
| << | Begin label |
| /* | Begin multiline comment |
| " | Begin or end quoted identifier |
| -- | Begin single-line comment |
| ) | End expression |
| >> | End label |
| */ | End multiline comment |
| , | List item separator |
| .. | Range separator |
| ; | Statement terminator |