Data Transformation Engine Functions and Expressions Reference Guide

Chapter 5 - Reserved Words and Symbols Reserved Words and Symbols
Functions and Expressions Reference Guide
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Chapter 5 - Reserved Words and
Symbols
This chapter lists the words and symbols that have a special meaning.
Reserved Words and Symbols
The following is the list of reserved words and their intended use.
Reserved Word
or Symbol Intended Use
$ Shorthand representation of the object name to
the left of a rule cell. Used in a component rule or
a map rule.
: Used to separate components.
:.: Shorthand representation of a unique component
or partition path.
For example, A:.:B refers to the unique path from
the type A to the type B.
<> Separates a partition from its partitioned type.
, Used to separate arguments of functions and
maps.
" " Used to enclose literal text items.
( ) Used for a component range, to enclose function
or map arguments, and to block sub-expressions
in a rule.
@ Separates a comment from a component.
[ ] Denotes an indexed member of a series.
{ } Used to enclose a list of literals.