Conventions Used in This Book

Constant width is used for:

  • Code examples and fragments

  • Anything that might appear in an XML document, including element names, tags, attribute values, and processing instructions

  • Anything that might appear in a program, including keywords, operators, method names, class names, and literals

Constant width bold is used for:

  • Emphasis in code examples and fragments

Italic is used for:

  • New terms where they are defined

  • Emphasis in body text

  • Pathnames, filenames, and program names

  • Host and domain names

    Tip

    This icon indicates a tip, suggestion, or general note.

    Warning

    This icon indicates a warning or caution.

    Important

    This icon indicates a situation where compatibility issues may cause surprises.

Significant code fragments, complete programs, and documents are generally placed into a separate paragraph like this:

for $prod as element(*,ProductType) in doc("catalog.xml")/catalog/*
order by $prod/name
return $prod/name
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