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Forum Index : Microcontroller and PC projects : ELSEIF statements
| Author | Message | ||||
| larny Guru  Joined: 31/10/2011 Location: AustraliaPosts: 346 |
I have been trying to use the ELSEIF statement. Here are 2 of several possibilities that I've tried without success. Please advise. This one gives the error message:- "Line 20 expected closing bracket" I don't know what this means. There no opening bracket. ?? 10 FOR A = 3 TO 7
15 PRINT A 20 IF A < 5 THEN PRINT "A < 5" ELSEIF A = 5 THEN PRINT "A = 5" ELSE PRINT "A > 5" 25 ENDIF 30 NEXT 40 END This programme works but does not execute the ELSEIF line. 10 FOR A = 3 TO 7
15 PRINT A 20 IF A < 5 THEN PRINT "A < 5" 25 ELSEIF A = 5 THEN PRINT "A = 5" ELSE PRINT "A > 5" 27 ENDIF 30 NEXT 40 END The output is:- 3 A < 5 4 A < 5 --------------correct so far. 5 (A = 5) 6 (A > 5) 7 (A > 5) The contents inside the brackets indicate what the output should be. What am I missing? Any assistance will be appreciated. Len |
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TassyJim Guru Joined: 07/08/2011 Location: AustraliaPosts: 6097 |
Try this: 100 FOR A = 3 TO 7
110 PRINT A 120 IF A < 5 THEN 130 PRINT "A < 5" 140 ELSEIF A = 5 THEN 150 PRINT "A = 5" 160 ELSE 170 PRINT "A > 5" 180 ENDIF 190 NEXT 200 END You were mixing up one line if's with multiline. Jim VK7JH MMedit MMBasic Help |
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| larny Guru Joined: 31/10/2011 Location: AustraliaPosts: 346 |
Thanks Jim, That worked beautifully. Len |
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graynomad Senior Member  Joined: 21/07/2010 Location: AustraliaPosts: 122 |
OK I'm going to cop some flak for this, but here goes anyway :) What's with the line numbers, non-indented code, and all caps? Is that enforced by MMbasic (I assume that's what language it is) or are we on a 70s retro trip? ______ Rob Rob Gray, AKA the Graynomad, www.robgray.com |
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| aargee Senior Member Joined: 21/08/2008 Location: AustraliaPosts: 255 |
MM Basic is as close to the old 70-80s style BASICs (sorry, but BASIC is an acronym...) as you can get. You cannot maintain indented code. All code will be hard up against the left, with line numbers and in capital letters as per Geoff's intention (have a read of the Maximite BASIC page here). Yes, the Maximite can be thought of as a form of 70s retro trip in it's pure BASIC sense. But the Maximite is much more than that! - Rob. For crying out loud, all I wanted to do was flash this blasted LED. |
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crackerjack Senior Member Joined: 11/07/2011 Location: AustraliaPosts: 164 |
Only Line Numbers are required by MMBasic (for now, we all hope). CAPS and the world's worst practice of non-indented code is a matter of personal preference for some ex-COBOL hipsters among the forum crew. The Maximite does MAJUSCULATE keywords, but not variable names and is not case-sensitive. In other words: None of MMBasic is a capitonym. |
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| aargee Senior Member Joined: 21/08/2008 Location: AustraliaPosts: 255 |
I seem to manage the line numbers OK and the non-indented coding and I've never touched COBOL! It's all GW-BASIC to me. I'm not really sure what your Maximite is doing in the second sentence, but it sounds like that episode of The Big Bang Theory involving the robot arm. Hospital pictures would be priceless, especially showing the Maximite. "In other words..." they ain't! (words that is). 8-) - Rob. For crying out loud, all I wanted to do was flash this blasted LED. |
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| graynomad Senior Member Joined: 21/07/2010 Location: AustraliaPosts: 122 |
Jeez crackerjack your post sent me scurrying for the dictionary 
I did some COBOL programming in a previous life, that was my first thought when I saw the above code. The Maximite looks like a great board and obviously more than just a 70s retro trip. It has an ICSP header so I guess you can fire up the C compiler but I assume that's not really the intended market. So the BASIC interpreter just needs improving a little, maybe dragged into the 90s at least. ______ Rob Rob Gray, AKA the Graynomad, www.robgray.com |
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| TassyJim Guru Joined: 07/08/2011 Location: AustraliaPosts: 6097 |
If you do like the Maximite but hate line numbers you could try MM Edit. I wrote it because I also prefer to code without line numbers. MM Edit doesn't do indenting (yet) and any indents will be stripped as it converts the code to line numbers. That saves space and time for the interpreter. One of these days, I will add indenting built in help and coloured keywords etc but for now, I just want to make life a bit easier for the beginners. http://www.c-com.com.au/MMedit.htm Jim VK7JH MMedit MMBasic Help |
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| graynomad Senior Member Joined: 21/07/2010 Location: AustraliaPosts: 122 |
That looks good. I gather Geoff wrote the interpreter in 8 days, pretty impressive, but he might be over it by now so maybe that's the way to do it, an editor that is also a pre processor. Is the MMbasic source open? ______ Rob Rob Gray, AKA the Graynomad, www.robgray.com |
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