On Feb 14, 2011, at 10:23, Glenn Knickerbocker wrote:
> On 02/14/2011 11:29 AM, Paul Gilmartin wrote:
>> 'callpipe var dataline | append *.input: | *.output:'
>
> Think for a second about the context of *.input: here. It's being used
> in a pipeline added by APPEND, so it refers to APPEND's input, not the
> input of your stage that issued the CALLPIPE. ,,,
>
Gaaaaah! Thanks.
> 'callpipe *: | preface var dataline | *:'
>
> 'output' dataline
> 'short'
>
Does 'short' operate always on the currently selected input and
output connectors? If so:
callpipe *.input.M: | *.output.N: /* Punctuate to taste. */
should be equivalent to:
streamnum input *
I = RC
select input M
streamnum output *
O = RC
select output N
short
if I>=0 then select input I /* Restore connections. */
if O>=0 then select output O
Ugh! Can this be shortened?
Do both report errors in RC identically? (Or are any errors
reported for either construct once the stage is committed?)
Thanks,
gil
