newby question: vowels & consonants

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April 29th, 2004, 06:30 AM

rudidebruyn

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newby question: vowels & consonants

Hi all,

I need to take the value from an editbox and be able to identify the words start with vowels and but them into a var and words that start with consonants into and other vowel.

Any ideas of how to go about this?

Any help will be much appreciated.

Regards
Rudi

April 29th, 2004, 12:04 PM

ECSUK

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This is a clumsy way, utilising arrays would probably be better, but until you learn how to use them or somebody is happy to show you, this should do the trick.

procedure TForm1.Btn1Click(Sender: TObject);
Var EditVar, MyConVar, MyVowelVar : String;
begin
EditVar := Copy( UpperCase( Edit1.Text ), 1, 1 );
If ( Pos( 'A', EditVar ) = 1 ) or
( Pos( 'E', EditVar ) = 1 ) or
( Pos( 'I', EditVar ) = 1 ) or
( Pos( 'O', EditVar ) = 1 ) or
( Pos( 'U', EditVar ) = 1 ) Then
MyVowelVar := EditVar
Else
MyConVar := EditVar;
end;

April 29th, 2004, 03:58 PM

Scorpions4ever

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Another way is to use Pascal's set operator to see if a character is within a set of characters or not. Incidentally, you can refer to a single character in a string by its index, instead of using Copy.

Code:

procedure TForm1.Button1Click(Sender: TObject);
var
	sIn : string;
	ch : char;
begin
	sIn := Edit1.Text;
	ch := upcase(sIn[1]);
	if (ch in ['A', 'E', 'I', 'O', 'U']) then
		ShowMessage(sIn + ' starts with vowel')
	else
		ShowMessage(sIn + ' starts with consonant');
end;

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