TStringHelper.LastIndexOf

Find the last position (index) of a string or character

Declaration

Source position: syshelph.inc line 133

public 
  function LastIndexOf(AValue: Char) : SizeInt;  Overload;
  function LastIndexOf(const AValue: string) : SizeInt;  Overload;
  function LastIndexOf(AValue: Char; AStartIndex: SizeInt) : SizeInt
                      ;  Overload;
  function LastIndexOf(const AValue: string; AStartIndex: SizeInt)
                       : SizeInt;  Overload;
  function LastIndexOf(AValue: Char; AStartIndex: SizeInt; 
                      ACount: SizeInt) : SizeInt;  Overload;
  function LastIndexOf(const AValue: string; AStartIndex: SizeInt; 
                      ACount: SizeInt) : SizeInt;  Overload;

Description

LasyIndexOf returns the zero-based index of the last occurrence of AValue in the string (Self). The value to search for can be a character or string (AValue).

if no match is found, -1 is returned.

The search can be refined by specifying a (zero based) index StartIndex. When specified, the search will start at the given character and proceeds towards the beginning of the string. Not specifying this option is equivalent to specifying length-1.

If ACount is given, at most ACount characters in the source string will be considered for the search. This count includes the starting character. Not specifying this argument is equivalent to specifying StartIndex+1.

See also