RegEx.SetExpression

Syntax

function RegEx.SetExpression(RegEx: pointer; Expression: string): boolean

Alternative Names

Description

Changes the regular expression.

RegEx is a previously created Regular Expression object by calling RegEx.Create.

The new regular expression is given by the Expression parameter.

Returns TRUE if the expression has been changed.

See also

Example

execute udsblock 

as

begin

  /* create the object, but with an empty expression */

  re = RegEx.Create(''); 

  /* set the regular expression */

  RegEx.SetExpression(re, '[_a-zA-Z\d\-\.]+@[_a-zA-Z\d\-]+(\.[_a-zA-Z\d\-]+)+');

  try

    /* find matches in a text */

    Res = RegEx.Exec(re, 'test m@nu.nl and then some z@example.com and more, @, test. finally fake@web.com');

    while (Res <> __FALSE)

    do begin

         /* a match has been found, display it */

     email = RegEx.Match(re, 0);

         GUI.ShowMessage('Found e-mail: ' || email);

         /* attempt to find the next match */

         Res = RegEx.ExecNext(re);

       end

  finally

    RegEx.Free(re);

  end

end;