string
Comparison method
If it is not one of the following, it is considered a command
(To compare two elements, evaluate a Tcl script consisting of method with the two elements appended as
additional arguments. The script should return an integer less than, equal to, or greater than zero if the first element is to be considered less than, equal to, or
greater than the second, respectively.
The special methods are:
'int' - increasing integer
'-int' - decreasing integer
'nat' - increasing natural
'-nat' - decreasing natural
'compact' - increasing compact (see tl)
'-compact' - decreasing compact (see tl)
'hex' - increasing hex
'-hex' - decreasing hex
'octal' - increasing octal
'-octal' - decreasing octal
'binary' - increasing binary
'-binary' - decreasing binary
'real' - increasing real
'-real' - decreasing real
'intreal' - increasing real
'-intreal' - decreasing real
'str' - increasing string
'-str' - decreasing string