
In this section I will itemize some of the caveats of the dotdotfiles.
if {$test == "YES"} {
print "Test was true"
} else {
print "Test was false"
}
The pick takes three arguments, the first is a truth
expression, the second is a string to return, if the truth value is true,
and the third is a string to return if the string is false. The
example above can be rewritten to the following using the
pick function:
print "Test was [pick {$test == {YES}} true false]"