[sc34wg3] TMCL / CTM issue: ctm-integer
heuer at semagia.com
Wed Dec 23 08:37:01 EST 2009
> Would it be an option to simply handle it the following way and thus
> eliminate the need for a special datatype:
> 1) No statement about the upper limit defaults to upper limit =
Even if it is possible to state
topic has-occurrence(tmcl:comment, 0).
topic has-occurrence(tmcl:comment, 0, *).
you need a representation for infinity, at least internally. And
ctm-integer is such a representation.
The following *is* possible in CTM:
def has-occurrence($kind, $min, $max)
def has-occurrence($kind, $min)
has-occurrence($kind, $min, *) # Invokes the ternary has-occ
> 2) No statement about the lower limit defaults to lower limit = 0.
CTM provides no way to assign a default value to a parameter, like
def has-occurrence($kind, $min=0, $max=*)
so it is difficult to leave out the lower limit. The new draft
provides just a feature to use the same template name with different
parameter numbers (see the binary/ternary 'has-occurrence' example
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