The many different kinds of software discussed in this book made it a real struggle to come up with consistent typographical conventions. Here are the rules I’ve tried to follow:
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Constant Width
Used for generic, HTML, SQL, and XML code. Also used for message headers.
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Constant Width Bold
Used for user input.
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Constant Width Italic
Used for replaceable elements, including markers and abstract markers.
- Italic
Used for commands, filenames, functions, GUI labels, modules, newgroups, script names, URLs, and URL fragments. Also used to introduce new terms and for emphasis.
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