[squid-users] Squid regex grammar

[Yuri]

27.10.2017 21:33, Antony Stone пишет:
> On Friday 27 October 2017 at 17:26:18, Yuri wrote:
>
>> 27.10.2017 21:17, Antony Stone пишет:
>>> On Friday 27 October 2017 at 17:06:01, Yuri wrote:
>>>> 27.10.2017 20:55, Alex Rousskov пишет:
>>>>> When a regular expression is using extended features, the basic regular
>>>>> expression compiler often (or even always?!) does not fail because it
>>>>> views the extended features as ordinary plain characters. Thus, Squid
>>>>> cannot tell that something went wrong.
>>>>>
>>>>>> $ echo "foobar" | grep --basic-regexp    'foo|bar'
>>>>>> $ echo "foobar" | grep --extended-regexp 'foo|bar'
>>>>>> foobar
>>>>> As you can see, the basic compiler is silent about the "|" character
>>>>> that it does not support. Here is a similar example where a malformed
>>>>>
>>>>> extended regular expression is silently accepted by the basic compiler:
>>>>>> $ echo "foobar" | grep --basic-regexp 'foo(bar'
>>>>>> $ echo "foobar" | grep --extended-regexp 'foo(bar'
>>>>>> grep: Unmatched ( or \(

As for me personally, I would like ECMAScript syntax to be supported in
regular expressions of access control lists by default. :)

-- 
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* C++: Bug to the future *
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