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Network World - Before I launch into my main thrust (a word that must be pronounced with a rolling "r") I have to direct you to a work of near genius, txt2re, an online regular expression code generator.
If you aren't au fait with regular expressions (also called regexes or regexps), they are formal descriptions of searches to be conducted on sequences of characters (or "strings") by a regular expression processor, that is, a program designed to process "regexes" (see the Wikipedia entry on regular expressions).
To use txt2re you give the service an example string and it shows you the substrings it recognizes and lets you select which ones you want to include in the output.
192.168.10.11 - bob [16/Mar/2009:13:14:15 -0800] "GET /gibbs.gif HTTP/1.0" 200 5648
Txt2re failed to offer to treat the last digits in the string that show the data length as an integer – it only offered them as four individual digits (see here), which would be useless if the data length was five digits long.
So now, onto my main thrust: I love Gmail. Yes, I know that there are potential problems because, as a free service, there's no guarantee that your e-mail won't vanish one day and you'll have no recourse and occasionally the service goes unavailable, but I've had those same problems with services I've paid for.
Quite some time ago I decided to drop my e-mail service provider, Everyone.net. I'd been using Everyone because the mail service that came with my Web service (hosted by EasyCGI) had no spam filtering at the time.
I dropped Everyone because the company didn't provide support unless I was willing to spend more money, and I also realized I could use Gmail — which has very good spam filtering — for free. My kind of deal. Not only would this cure my spam problem for free but I'd also get excellent searching of my e-mail and could access it from anywhere, including from Outlook via IMAP.
Anyway, I've now been happily using Gmail for more than a year and I have set up lots of filters to categorize the e-mail I receive. And when I say "lots" I'm not kidding – I have hundreds. My problem is I recently realized I have many filters that should be combined. The trouble is doing this through the Gmail filter page would be, to say the least, painful.