Alex,
Sometimes I feel like I have been really stupid when the light dawns. Of course there is a way to specify a sequential access in a single statement. The catch is that an extra variable needs to be specified and modified. Something like this:
put line offset tCharOffset of string into container --tCharOffset is advanced to after return
Or as a function:
get sequentialLine((tCharOffset),string) --still advances tCharOffset
This would take care of fast sequential access to strings.
What do you think? Is there a better form that this could be put into for Transcript?
Dennis
On Apr 13, 2005, at 11:25 AM, Alex Tweedly wrote:
Dennis Brown wrote:
The Idea is to break apart the essential functional elements of the repeat for each control to allow more flexibility. This sample has a bit more refinement than what I posted yesterday in Bugzilla.
The new keyword would be "access" , but could be something else.
An example of the use of the new keywords syntax would be:
access each line X in arrayX--initial setup of pointers and X value
access each item Y in arrayY --initial setup of pointers and Y value
repeat for number of lines of arrayX times --same as a repeat for each
put X & comma & Y & return after ArrayXY --merged array
next line X --puts the next line value in X
next item Y --if arrayY has fewer elements than arrayX, then empty is supplied, could also put "End of String" in the result
end repeat
Another advantage of this syntax is that it provides for more flexibility in structure of loops. You could repeat forever, then exit repeat when you run out of values (based on getting an empty back). The possibilities for high speed sequential access data processing are much expanded which opens up more possibilities for Revolution.
Dennis,
I think having more flexible repeat structures to allow parallel passes through lists or arrays is a really good idea, but I don't like the form you have suggested. It seems wrong to have separate statements to setup the loop; as far as I know, the language currently keeps the meaning of each statement self-contained, so I think this multi-line form would be a hard one to "sell".
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