Conventions Used in This BookThis book uses various conventions to present information. Words that require special treatment appear in specific fonts or font styles. Certain information, such as command line options, uses special formats so that you can scan it quickly.
Special FontsThis book uses several typographical conventions. All code listings, reserved words, and the names of actual data structures, constants, fields, parameters, and routines are shown in Courier (
this is Courier).
Words that appear in boldface are key terms or concepts and are defined in the glossary.
Command SyntaxThis book uses the following notation and font conventions to describe Guide Script commands:
[optional] Brackets indicate that the enclosed language element or elements are optional. [optional]. . . Three points of ellipsis (. . .) after a group defined by brackets indicate that you can repeat the group of elements within the brackets 0 or more times.
Plain computer font indicates an element that you must type exactly as shown. If there are special symbols (for example + or &), you must also type them exactly as shown. placeholder Italic text indicates a placeholder that you must replace with a real value that matches the definition of the element.
Types of NotesThis book uses two types of notes.
- A note like this contains information that is interesting but possibly not essential to an understanding of the main text.
- A note like this contains information that is essential for an understanding of the main text.