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Symbols are used in the syntax diagrams as follows:

| __Symbol__ | __Meaning__ |
| [ ] | Brackets enclose an optional (not required) attribute or parameter. |
| ( ) | Parentheses enclose a parameter list. |
| | | | Vertical lines enclose parameter lists, where one, but only one, of the parameters is allowed. |

Coding example conventions used throughout this manual:

**       IF NOT SomeDate       !IF and NOT are keywords**

**        SomeDate = TODAY()   !SomeDate is a data name **

**       END                   !TODAY and END are keywords**

| **CLARION LANGUAGE KEYWORDS** | Any word in "All Caps" is a Clarion Language keyword |
| **DataNames** | Use mixed case with caps for readability |
| **Comments** | Predominantly lower case |

The purpose of these conventions is to make the code examples readable and clear.