Function plpgsql_append_source_text

src/pl/plpgsql/src/pl_scanner.c:406–413

* Append the function text starting at startlocation and extending to * (not including) endlocation onto the existing contents of "buf". */

 * (not including) endlocation onto the existing contents of "buf".
 */
void
plpgsql_append_source_text(StringInfo buf,
						   int startlocation, int endlocation)
{
	Assert(startlocation <= endlocation);
	appendBinaryStringInfo(buf, scanorig + startlocation,
						   endlocation - startlocation);
}

/*
 * Peek one token ahead in the input stream.  Only the token code is