| From: | Gokulakannan Somasundaram <gokul007(at)gmail(dot)com> |
|---|---|
| To: | pgsql-hackers list <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | A bug in scan.l |
| Date: | 2009-09-02 02:05:44 |
| Message-ID: | 9362e74e0909011905l3a405ad0la2b1449be5852a0f@mail.gmail.com |
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| Lists: | pgsql-hackers |
There is a rule like this in scan.l
uescapefail
("-"|[uU][eE][sS][cC][aA][pP][eE]{whitespace}*"-"|[uU][eE][sS][cC][aA][pP][eE]{whitespace}*{quote}[^']|[uU][eE][sS][cC][aA][pP][eE]{whitespace}*{quote}|[uU][eE][sS][cC][aA][pP][eE]{whitespace}*|[uU][eE][sS][cC][aA][pP]|[uU][eE][sS][cC][aA]|[uU][eE][sS][cC]|[uU][eE][sS]|[uU][eE]|[uU])
I think this should be corrected to
uescapefail
("-"|[uU][eE][sS][cC][aA][pP][eE]{space}*"-"|[uU][eE][sS][cC][aA][pP][eE]{space}*{quote}[^']|[uU][eE][sS][cC][aA][pP][eE]{space}*{quote}|[uU][eE][sS][cC][aA][pP][eE]{space}*|[uU][eE][sS][cC][aA][pP]|[uU][eE][sS][cC][aA]|[uU][eE][sS][cC]|[uU][eE][sS]|[uU][eE]|[uU])
I have replaced whitespace with space. This has to be done because
whitespace allows comments. This would cause conflict between some of the
alternatives. I found this, while trying to make this rule work with LL(1).
Just thought, it might be useful.
Thanks,
Gokul.
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