Re: NON-trivial regular expression problem (could not find on google)

[Bruce Barnett]

democrat@india.com (Instant Democracy) writes:

> The task is to eliminate patterns such as 
>     DIRNAME/../
> from the path because they are redundant.

I assume that you are also trying to deal with security issues.
(Someone trying deliberately to gain access to fles outside of a directory)

Don't forget to include these cases:

        DIRNAME/./../
        DIRNAME/././../ etc.

        And also consider whatever quoting/conversions might occur.
        Hex encoding? Backslashes?

        How are "//" interpreted? Some cases these are treated as a single 
slash.
        Other cases it's the top of the directory.

        A/DIRNAME//../ - is this A, or / ?



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