FindInvalidUTF8Codepoint

Finds the position where an invalid UTF-8 codepoint is found in the string.

Declaration

Source position: lazutf8.pas line 132

function FindInvalidUTF8Codepoint(

p: PChar;

Count: PtrInt;

StopOnNonUTF8: Boolean = True

):PtrInt;

Arguments

`p`		Values to examine in the function.
`Count`		Length of the input values.
`StopOnNonUTF8`		True to exit on an malformed codepoint.

Function result

Offset into the string for the error.

Description

FindInvalidUTF8Codepoint is a PtrInt function used to find the position where an invalid UTF-8 codepoint is located in the specified value. The return value contains -1 when none of the values in p are invalid, or the zero-based offset into p where the invalid encoding was located.

StopOnNonUTF8 indicates if the function should exit when an encoded value is found that is not defined for the UTF-8 encoding, or for single byte characters inserted in the middle of a UTF-8 encoding (used in XSS attacks).

Version 3.2

Generated 2024-02-25

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