Macro Validation Expression Error?

[jluo_splunk]

I made a macro, we'll call it "test" defined as

 eval new_rate=$val$*$rate$

with the validation expression just checking rate to make sure it's a number

isnum($rate$)

When I call the macro.. I end up with something like test(revenue, .79) When I do this, Splunk says my rate failed validation because .79 is considered a string. When I pass 0.79, it passes as expected. Is this intentional, or a bug? Additionally, is there a function that would pass .79 as a number?

[woodcock · Accepted solution]

Like this:

test(revenue, tonumber(.79))

[jluo_splunk]

Wonderful, thank you woodcock!

[woodcock]

Note that I just retried all this in v6.5.0 and not only is tonumber not necessary but it generates an error now (the same error that this solution was proposed to solve)!