Throughout this book, I have used the following typographic conventions:
Indicates a language construct such as a statement, a constant, an attribute, or an expression. Interface names and lines of code appear in constant width, as do function and method prototypes.
Constant width bold
Indicates a highlighted section of code to be brought to the reader’s attention.
Represents intrinsic and application-defined functions, the names of system elements such as directories and files, and Internet resources such as web documents. New terms are also italicized when they are first introduced.
Constant width italic
Indicates replaceable parameter names in prototypes, command syntax, or body text, and indicates variable and parameter names in body text.