Determine last character of a variable

Warren Kuhl warrenkuhl at
Wed Aug 26 13:41:03 EDT 2009

This is probably a very stupid question..

I am trying to extract a substring from a variable and am unsure how to
determine the last character...

I tried...
put char 1 to last character of tdata into tsubstring
...but this fails.

Thanks for any help!

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