Typographical conventions in this Reference Guide

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This Reference Guide uses the following typographical conventions:

 

 

collapseBold type
collapseItalic type, equivalence operator ( ::= )
collapseDouble greater-than symbol ( >> ): required data type
collapseCurly braces not surrounding pipe symbol ( { } ): literal curly braces
collapseCurly braces surrounding pipe symbol ( { | } ), underline for default: set of alternatives
collapseEllipsis symbol ( ... ) in whitespace: omitted code
collapseEllipsis symbol ( ... ) following expression: optional repetition
collapseBrackets with ellipsis symbol ( [    ... ] ): scope of repetition
collapseInterpunction
collapsecontent: XML content