Using a variable to reference a field component

[David Teh]

Hi folks,

I have an Xlate proc trying to output to a field component.

Tried using this but it seems to treat “[$ctr]” as blank and writes to the field instead.

xpmstore $xlateId {~0(0).PV1(0).#52(0).[$ctr]} d -c “$line”

 

What am I missing?

 

TIA!

Topic

[Charlie Bursell]

That is because your variable is inside braces and is not evaluated.  Use quotation marks instead.  If you really need braces use the subst command

[David Teh]

Hi Charlie,

Trying to wrap my mind around this…..

How would we output to a component without the square brackets?

[Charlie Bursell]

A couple of different ways

enclose in double quotes and escape the brackets with backslashes

xpmstore $xlateId “~0(0).PV1(0).#52(0).\[$ctr\]” d -c “$line”

or you could use the substitute (subst) command.

set xlateid [subst -nocommands {~0(0).PV1(0).#52(0).[$ctr]}] d -c “$line”

The first option would be better for documentation.  The second may confuse others nor familiar with the substitute command

[Author]

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