Function plpgsql_scanner_errposition

src/pl/plpgsql/src/pl_scanner.c:474–488

* plpgsql_scanner_errposition * Report an error cursor position, if possible. * * This is expected to be used within an ereport() call. The return value * is a dummy (always 0, in fact). * * Note that this can only be used for messages emitted during initial * parsing of a plpgsql function, since it requires the scanorig string * to still be available. */

 * to still be available.
 */
void
plpgsql_scanner_errposition(int location)
{
	int			pos;

	if (location < 0 || scanorig == NULL)
		return;					/* no-op if location is unknown */

	/* Convert byte offset to character number */
	pos = pg_mbstrlen_with_len(scanorig, location) + 1;
	/* And pass it to the ereport mechanism */
	(void) internalerrposition(pos);
	/* Also pass the function body string */
	internalerrquery(scanorig);
}

/*
 * plpgsql_yyerror