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Reference for unit 'sysutils' (#rtl)

IsValidIdent

Check whether a string is a valid identifier name.

Declaration

Source position: sysstrh.inc line 107

function IsValidIdent(

const Ident: string;

AllowDots: Boolean = False;

StrictDots: Boolean = False

):Boolean;

Description

IsValidIdent returns True if Ident can be used as a compoent name. It returns False otherwise. Ident must consist of a letter or underscore, followed by a combination of letters, numbers or underscores to be a valid identifier.

Errors

None.

Example

Program Example75;

{ This program demonstrates the IsValidIdent function }

Uses sysutils;

Procedure Testit (S : String);

begin
  Write ('"',S,'" is ');
  If not IsVAlidIdent(S) then
    Write('NOT ');
  Writeln ('a valid identifier');
end;

Begin
  Testit ('_MyObj');
  Testit ('My__Obj1');
  Testit ('My_1_Obj');
  Testit ('1MyObject');
  Testit ('My@Object');
  Testit ('M123');
End.