| From: | Peter Eisentraut <peter_e(at)gmx(dot)net> |
|---|---|
| To: | Thomas Lockhart <lockhart(at)fourpalms(dot)org> |
| Cc: | Jan Wieck <JanWieck(at)Yahoo(dot)com>, PostgreSQL HACKERS <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Dollar in identifiers |
| Date: | 2001-08-16 16:01:12 |
| Message-ID: | Pine.LNX.4.30.0108161757360.677-100000@peter.localdomain |
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| Lists: | pgsql-hackers |
Thomas Lockhart writes:
> Are dollar signs currently allowed in operators? I'd hate to reduce the
> allowed number of characters for operators.
They are, therefore identifiers couldn't start or end with a dollar in any
case. However, single "$" operator cannot exist, so foo$bar wouldn't be
ambiguous, but the tendency to confuse it with an operator syntax would
reduce the readability of code greatly, IMO. However, a $$ operator can
exist, so a construct like foo$$bar would parse completely differently,
leaving you with a big mess.
--
Peter Eisentraut peter_e(at)gmx(dot)net http://funkturm.homeip.net/~peter
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