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#24504 - 2002-07-06 03:35 PM Limiting string input
zenart zenart Lurker Registered: 2002-06-13 Posts: 4 Loc: melb	Hi I have a simple question, I am writting a script where I ask the user to input a three digit string. AT (5,10) " Enter the three Digit Machine ID " AT (6,10) " (eg 601) : " Gets $IMAGE How do I limit the input to only three digits and how to I stop spaces from being inputed as part of the string. ???
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#24505 - 2002-07-06 03:42 PM Re: Limiting string input
Jochen Jochen KiX Supporter Registered: 2000-03-17 Posts: 6380 Loc: Stuttgart, Germany	Well, you can check for the length of the string and if there are spaces included : code: break on :again AT (5,10) " Enter the three Digit Machine ID " AT (6,10) " (eg 601) : " Gets $IMAGE if len($image) > 3 or instr($image," ") cls beep goto again endif get $ _________________________
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#24506 - 2002-07-06 03:47 PM Re: Limiting string input
Shawn Shawn Administrator Registered: 1999-08-13 Posts: 8611	I like Jochens idea, but here's the other way of doing it ...you decide: break on ? "Enter the three Digit Machine ID (eg 601): " $done = 0 $ans = "" do get $c if asc($c) = 3 ; ^c break ? $done = 1 else if $c <> " " $c = ucase($c) $c ; echo $ans = $ans + $c else beep endif endif until $done or len($ans) = 3 exit 1 -Shawn
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#24507 - 2002-07-06 03:56 PM Re: Limiting string input
Jochen Jochen KiX Supporter Registered: 2000-03-17 Posts: 6380 Loc: Stuttgart, Germany	Neat ! _________________________
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#24508 - 2002-07-06 03:59 PM Re: Limiting string input
Shawn Shawn Administrator Registered: 1999-08-13 Posts: 8611	Yeah, but one can't backspace with this routine ... maybe should fix ? I would still recommend, like you, just use the GETS() in a LOOP, and check for good string ...
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#24509 - 2002-07-06 04:02 PM Re: Limiting string input
Jochen Jochen KiX Supporter Registered: 2000-03-17 Posts: 6380 Loc: Stuttgart, Germany	We had that once I think with Bryce's password char input loop ? Loads of code though ... J. _________________________
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#24510 - 2002-07-08 01:26 PM Re: Limiting string input
zenart zenart Lurker Registered: 2002-06-13 Posts: 4 Loc: melb	YE thank for that I like jpols suggestion, But what about a carriage return. How would i filter that out
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#24511 - 2002-07-08 01:29 PM Re: Limiting string input
Lonkero Lonkero KiX Master Guru Registered: 2001-06-05 Posts: 22346 Loc: OK	change the line: if len($image) > 3 or instr($image," ") to: if len($image) <> 3 or instr($image," ") thanks jochen. [ 08 July 2002, 13:33: Message edited by: Lonkero ] _________________________ ! download KiXnet
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#24512 - 2002-07-08 01:30 PM Re: Limiting string input
Jochen Jochen KiX Supporter Registered: 2000-03-17 Posts: 6380 Loc: Stuttgart, Germany	A 'carriage return' ie. ENTER completes the string input , so it is not passed by default hth J. _________________________
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#24513 - 2002-07-09 11:43 AM Re: Limiting string input
zenart zenart Lurker Registered: 2002-06-13 Posts: 4 Loc: melb	The example below works well thanks for all your help. if len($image) <> 3 or instr($image," ")
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