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### Keybase proof
I hereby claim:
* I am corylanou on github.
* I am corylanou (https://keybase.io/corylanou) on keybase.
* I have a public key ASCG-v26KSD7VXilPC9tj_ycCtEzm1hn2vp7ifk_nyczFgo
To claim this, I am signing this object:
package http
import (
"bytes"
"compress/gzip"
"net/http"
"strings"
)
type gzipFilter struct {
@corylanou
corylanou / checksum.calc
Last active August 29, 2015 14:02
Calculate a mod 10 Checksum (upc) in open office calc
=IF(10-RIGHT((((MID(G123;1;1) + MID(G123;3;1) + MID(G123;5;1) + MID(G123;7;1) + MID(G123;9;1) + MID(G123;11;1))*3) + (MID(G123;2;1) + MID(G123;4;1) + MID(G123;6;1)+MID(G123;8;1)+MID(G123;10;1)+MID(G123;12;1)))/10*10;1)=10;0;10-RIGHT((((MID(G123;1;1) + MID(G123;3;1) + MID(G123;5;1) + MID(G123;7;1) + MID(G123;9;1) + MID(G123;11;1))*3) + (MID(G123;2;1) + MID(G123;4;1) + MID(G123;6;1)+MID(G123;8;1)+MID(G123;10;1)+MID(G123;12;1)))/10*10;1))
<!DOCTYPE html>
<html>
<head>
<script src='https://dnv9my2eseobd.cloudfront.net/mapbox.js/v0.6.4/mapbox.js'></script>
<link href='https://dnv9my2eseobd.cloudfront.net/mapbox.js/v0.6.4/mapbox.css' rel='stylesheet' />
<style>
body { margin:0; padding:0; }
#map { position:absolute; top:0; bottom:0; width:100%; }
</style>
</head>