LazStartsText function
Determines if a string occurs at the beginning of the specified text.
Declaration
function LazStartsText(const ASubText: string; const AText: string)
: BooleanArguments
ASubText | Value to locate at the start of the string. |
AText | String value used in the comparison. |
Function result
True when the sub-text is at the start of the string value.Description
LazStartsText is a fast implementation of
StartsText.
The version in the RTL
strutils.pp unit calls
AnsiCompareText and is
very slow.
LazStartsText casts the values in ASubText and AText to
PChar types, and calls StrLIComp to perform a
case-insensitive comparison for the number of characters in ASubText.
The return value is True when ASubText and AText start with the same values. The return value is also True when ASubText is an empty string (''); this is Delphi compatible. The return value is False when StrLIComp returns a non-zero value.
See also
An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.