Untitled

index

Returns the specified member of a comma-delimited string.

$(index,which, string)

Assumes that the string argument contains one or more values delimited by

the macro argument separator character, the comma. The which argument

selects one of these values to be extracted, with the first item numbered 0.

This function is most frequently used to extract X, Y, or Z coordinate values

from point coordinates returned by $(getvar).

Quick Reference

System Variables

MENUECHO

Sets menu echo and prompt control bits.

nth

Evaluates and returns the argument selected by which.

$(nth,which, arg0[, arg1,..., arg7])

If which is 0, nth returns arg0, and so on. Note the difference between $(nth)

and $(index); $(nth)returns one of a series of arguments to the function,

while $(index) extracts a value from a comma-delimited string passed as a

single argument. Arguments not selected by which are not evaluated.

Quick Reference

System Variables

MENUECHO

Sets menu echo and prompt control bits.

340 | Chapter 5 DIESEL