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regular expressions, characters unallowed in file names  RSS feed

 
chop ficaro
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trying to take a url and turn it into a file name by grabbing the last bit of the string that doesnt have any characters that arent allowed in file names, but this keeps returning "://" and slashed, all the charqacters i DONT want
 
Ireneusz Kordal
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What about this?
 
With a little knowledge, a cast iron skillet is non-stick and lasts a lifetime.
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