Convention | Usage |
---|---|
UPPERCASE | Indicates constants (for example, TRUE, FALSE, and FB_DIMMED) |
lowercase | Indicates 4GL keywords and statements (for example, begin keyword and callproc statement) |
italic, lowercase | Indicates a variable name (for example, cursor_variable) |
Mixed Case/Initial Capitalization | Indicates class names, attributes, methods, or events (for example, DataStream class, ClientData attribute, FetchRow method, and WindowResized event) |
Convention | Usage |
---|---|
Boldface | Indicates keywords, symbols, or punctuation that you must type as shown |
Italic | Indicates a variable name for which you must supply an actual value—this convention is used in explanatory text and syntax |
Italic, underline | Indicates a variable name which can be used in a statement either dynamically (when you run the application) or statically (when you create the application) |
[ ] (square brackets) | Indicates an optional item |
{ } (curly braces) | Indicates an optional item that you can repeat as many times as appropriate |
| (vertical bar) | Indicates a list of mutually exclusive items (that is, you can select only one item from the list) |