0.5. Conventions Used in This Book
The following typographic conventions are used in this book:
Used for file and directory names, email addresses, and URLs, as well
as for new terms where they are defined.
- Constant width
Used for code listings and for keywords, variables, function names,
command options, parameters, and bits of HTML source where they
appear in the text.
- Constant width bold
Used to highlight key fragments of larger code examples, or to show
the output of a piece of code.
- Constant width italic
Used as a general placeholder to indicate terms that should be
replaced by actual values in your own programs.