Typographic Conventions

A typographic convention helps you identify special words used in this manual. These words frequently appear in specifications of syntax and examples of source code.

ExamplesDetails
ByRef, In, Rem, UInteger
Language keywords are shown with an initial upper-case letter, with the format shown in the example.
condition, #object, argumentList
Information that you supply is shown with an initial lower-case letter, with the format shown in the example.
name [ = value ]
In syntax specifications, items in square brackets are optional. You can use the item, or ignore it.
{ While | Until }
In syntax specifications, curly brackets and vertical bars show a necessary decision between two or more alternatives. You must use one, and only one, of the items.
[ In | Out ]
In syntax specifications, square brackets and vertical bars show an optional decision between two or more alternatives. You can use one of the items, or none of the items.
parameter [ , parameter ]...
In syntax specifications, three dots show that the item before can be repeated as many times as necessary. In code examples, three dots are used where code was removed to make the example easier to read.