Tom Lane wrote:
> Michael Parker <parkerm@pobox.com> writes:
>
>>sub bytea_esc {
>> my ($str) = @_;
>> my $buf = "";
>> foreach my $char (split(//,$str)) {
>> if (ord($char) == 0) { $buf .= "\\\\000"; }
>> elsif (ord($char) == 39) { $buf .= "\\\\047"; }
>> elsif (ord($char) == 92) { $buf .= "\\\\134"; }
>> else { $buf .= $char; }
>> }
>> return $buf;
>>}
>
>
> Oh, I see the problem: you forgot to convert " to a backslash sequence.
>
> It would probably also be wise to convert anything >= 128 to a backslash
> sequence, so as to avoid any possible problems with multibyte character
> encodings. You wouldn't see this issue in a SQL_ASCII database, but I
> suspect it would rise up to bite you with other encoding settings.
>
> regards, tom lane
Here is some code that applies Toms Suggestions:
38c39,41
< if (ord($char) == 0) { $buf .= "\\\\000"; }
---
> if (ord($char) >= 128) { $buf .= "\\\\" . sprintf ("%lo",
ord($char)); }
> elsif (ord($char) == 0) { $buf .= "\\\\000"; }
> elsif (ord($char) == 34) { $buf .= "\\\\042"; }
But this begs the question, why not escape everything?
schu
