Another HB-25 Motor Controller code question

Joe Fishback

In the documention and sample code for the HB-25 I have questions about the syntax of the code use of the "colon". On the first line of the Initialization part of the program is···· DO: LOOP UNTIL HB25 = 1 . Why is it written that way and not· on two lines

DO
LOOP UNTIL HB = 1

I have also noticed on other code samples a "colon" between statements on one line instead of putting them on seperate lines. What·are the rules for using the "colon" ?

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······ Joe Fishback

-Robots are my friends-

Franklin

Why waste two lines when one will do? The entire command fits on one line like an if/then statement with only one statement like:
if i > 5 then goto someplace

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- Stephen

Jessica Uelmen

Hi Joe,

In PBASIC, a colon can substitute a carriage return in your code. So, you can use a colon anytime you need a new line but don't want to take the space. As Franklin said, why waste two lines when one will do? [noparse]:)[/noparse]

However, the colon cannot be used when executing subroutines. This is because the code cannot return to the point where the subroutine was called if it is not in a new line. Just something to keep in mind if you decide to try using colons in your own code.

Hope this helps!

Jessica

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Jessica Uelmen
Education Department
Parallax, Inc.

Joe Fishback

Jessica,

Thanks, I could not find·anything in the manual on the use of the "colon". That explains alot.






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······ Joe Fishback

-Robots are my friends-

Post Edited (Joe Fishback) : 4/9/2009 11:42:31 PM GMT