The following typographical conventions are used in this book:
Indicates menu titles, menu options, menu buttons, and keyboard accelerators (such as Alt and Ctrl).
Indicates new terms, URLs, email addresses, filenames, file extensions, pathnames, directories, and Unix utilities.
Indicates commands, options, switches, variables, attributes, keys, functions, types, classes, namespaces, methods, modules, properties, parameters, values, objects, events, event handlers, XML tags, HTML tags, macros, the contents of files, or the output from commands.
Constant width bold
Used to highlight portions of code.
Constant width italic
Shows text that should be replaced with user-supplied values.