On Mon, Jul 16, 2001 at 12:28:23PM +0100, Colm Buckley wrote:
> No, no.
correct, i was over-simplifying.
> Two misconceptions here.
>> First of all, '*' in a regular expression doesn't mean "any sequence
> of characters", it means "zero or more instances of the previous
> item", so in a *regular expression* context, "foo*[^re]c" would match
> a (sub)string starting with "fo", then any number of "o"s, then any
> character except "r" and "e", and finally a "c".
in globbing * means any sequence of chars - it's shorthand for the
regexp .* . the main point was what [^re] meant - not the same
thing as [^r][^e]|r[^e]|[^r]e (surely there's an easier way to write
"not a string"). in a glob context the only thing that changes is
s/fo"/foo"/;s/"o"/char/
> *If* it's only files ending in "ec" which you want to exclude, you
> could do "*[^e]c", which would give you all files ending in "c" except
> those where the second last letter is "e"; this is a bit flaky,
> though, as it relies on previous knowledge of the space of filenames.
right. this would miss fooc.
kevin
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