Fun stuff.

Say you have an oracle connect string that looks like: 
['] [userid] [/ [password]] [@net_service_name] [']

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Now say you want to parse that. I came up with this regex that seems to do it, at least for some of the simple tests below.

I humbly ask your opinions: 
my ($userid, $password, $netServiceName) = /'?([^@\/']+)?(\/[^@\/']*)?
+(@[^@\/']+)?'?/;

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Samples.

>>string<< is parsed as <userid> </password> <@net_service_name>

Note, btw, the special case of '/' which needs to parse as simply '/'. 
>>SYS/change_on_install@prod1<<
<SYS> </change_on_install> <@prod1>
>>rman/rman@rcat<<
<rman> </rman> <@rcat>
>>SYS<<
<SYS> <> <>
>>/<<
<> </> <>
>>/fooey<<
<> </fooey> <>
>>/fooey@foobar<<
<> </fooey> <@foobar>
>>SYS@foobar<<
<SYS> <> <@foobar>
>>'simple/fooey@foobar'<<
<simple> </fooey> <@foobar>

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In reply to Parsing an Oracle connect string by fbicknel

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