What steps will reproduce the problem? 1. call a macro that has ${variable} where variable is 0

What is the expected output? What do you see instead?

I expect '0' to be included in the emitted HTML. Instead, nothing it emitted.

What version of the product are you using? On what operating system?

TrimPath template 1.0.38 on Debian Linux using Iceweasel (Firefox) 2.0.0.11

Please provide any additional information below.

See attached test page that demonstrates the problem.

See: http://trimpath.com/forum/viewtopic.php?pid=2759#p2759

Proposed fix is included as a patch.