Thread

Re: [HACKERS] Status report: long-query-string changes

Leon <leon@udmnet.ru> — 1999-09-12T12:12:02Z

Tom Lane wrote:

> 
> If you're looking at the "literal" buffer, that would need to be made
> expansible, but there's not much point until flex's internal stuff is
> fixed.
> 
> 

Look at this piece of code. It seems that when myinput() had been called
once, for the second time it will return 0 even if string isn't
over yet. Parameter 'max' is 8192 bytes on my system. So the query is 
simply truncated to that size.

#ifdef FLEX_SCANNER
/* input routine for flex to read input from a string instead of a file */
static int
myinput(char* buf, int max)
{
	int len, copylen;

	if (parseCh == NULL)
	{
		len = strlen(parseString);
		if (len >= max)
			copylen = max - 1;
		else
			copylen = len;
		if (copylen > 0)
			memcpy(buf, parseString, copylen);
		buf[copylen] = '\0';
		parseCh = parseString;
		return copylen;
	}
	else
		return 0; /* end of string */
}
#endif /* FLEX_SCANNER */
 

-- 
Leon.
-------
He knows he'll never have to answer for any of his theories actually 
being put to test. If they were, they would be contaminated by reality.