ENABLE Reference Manual
 SYNTAX CONVENTIONS IN THIS MANUAL
 The following list summarizes the conventions for syntax notation
 in this manual.
 Notation Meaning
 UPPERCASE Uppercase letters represent keywords and reserved
 LETTERS words; you must enter these items exactly as shown.
 <lowercase Lowercase letters within angle brackets represent
 letters> variables that you must supply.
 Brackets [] Brackets enclose optional syntax items. A
 vertically aligned group of items enclosed in
 brackets represents a list of selections from which
 you may choose one or none.
 Braces {} Braces enclose required syntax items. A vertically
 aligned group of items enclosed in braces represents
 a list of selections from which you must choose only
 one.
 Ellipsis An ellipsis immediately following a pair of brackets
 ... or braces indicates that you can repeat the enclosed
 syntax items any number of times.
 Percent Precedes a number in octal notation.
 Sign %
 I/O In procedure calls, input parameters (those that
 pass data from the calling program to the called
 procedure) are followed by an 'I' (input). Output
 parameters (those that return data from the called
 procedure to the calling program) are followed by an
 'O' (output).
 Spaces If two items are separated by a space, that space is
 required between the items. If one of the items is
 a punctuation symbol, such as a parenthesis or a
 comma, spaces are optional.
 Punctuation Parentheses, commas, semicolons, and other symbols
 or punctuation not described above must be entered
 precisely as shown. If any of the punctuation above
 appears enclosed in quotation marks, that character
 is not a syntax descriptor but a required character
 and you must enter it as shown.
 RETURN Indicates a carriage return.
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