[PASCAL] Trim function

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Trim function

 

This function is used to remove spaces from the start and the end of strings. If we have a string that contains the text ' Hello ' it will be 'Hello' after using this function. We can not display spaces in a terminal window unless we put characters between them. Look at the example below:

 

program TrimStr;
uses
 cthreads,
 Classes, SysUtil
var
 Line: string;
begin
 Line:= ' Hello ';
 Writeln('<', Line, '>');
 Line:= Trim(Line);
 Writeln('<', Line, '>');
 Readln;
end. 

 

In the foregoing example, we have used the unit SysUtils, which contains the Trim function.

There are another two functions that remove spaces from only one side of a string, before/after. These functions are: TrimRight, TrimLeft.

[D J C]

Keep it up !

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Topic closed.