Style Conventions

Items appearing in the book are sometimes given a special appearance to set them apart from the regular text. Here's how they look:

Italic

Used for book titles, email addresses, URLs, filenames, and Unix tools such as gdb. Also used to emphasize text and to introduce new terms.

Constant width

Used for literals, functions, labels related to builds (e.g., branch names), excerpts of code and command-line interaction, and XML/HTML markup.

Constant width italic

Used for replaceable parameters and variables.

Constant width bold

Used within command-line excerpts to highlight text typed by the user.