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# Boundary Arguments

The following table indicates how to use the boundary arguments to save portions of the parameter string.

Portion of string to save to parameter | lb | rb
--- | --- | ---
the entire string - header and body. | empty | empty
a string delimited by boundaries | boundary | boundary
the beginning of a string until the first right boundary | empty | boundary
the last left boundary until the end | boundary | empty
the first left boundary until the end | boundary | empty

For an overview of the steps required to correlate HTML statements in a script, see Correlating HTML statements.

Regular expressions are not supported in the boundary arguments unless the function supports the /RE qualifier.

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