124 lines
4.7 KiB
Plaintext
124 lines
4.7 KiB
Plaintext
From ilug-admin@linux.ie Wed Aug 28 10:48:11 2002
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+0100
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X-Authentication-Warning: fogarty.jakma.org: paul owned process doing -bs
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Date: Tue, 27 Aug 2002 21:32:26 +0100 (IST)
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From: Paul Jakma <paul@clubi.ie>
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X-X-Sender: paul@fogarty.jakma.org
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To: David Neary <dneary@wanadoo.fr>
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Cc: ILUG list <ilug@linux.ie>
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Subject: Re: [ILUG] converting strings of hex to ascii
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In-Reply-To: <20020827182940.A6217@wanadoo.fr>
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Message-Id: <Pine.LNX.4.44.0208272128390.3982-100000@fogarty.jakma.org>
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X-Nsa: iraq saddam hammas hisballah rabin ayatollah korea vietnam revolt
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mustard gas
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X-Dumb-Filters: aryan marijuiana cocaine heroin hardcore cum pussy porn
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teen tit sex lesbian group
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Sender: ilug-admin@linux.ie
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List-Id: Irish Linux Users' Group <ilug.linux.ie>
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X-Beenthere: ilug@linux.ie
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On Tue, 27 Aug 2002, David Neary wrote:
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> > Actually the following would be in some way sensible:
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> > echo -e "`echo "$enc" | sed 's/%\([0-9a-fA-F]\{2,2\}\)/\\\x\1/g'`"
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>
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> Why {2,2}? Why not {2}?
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no idea.
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the above was something along the lines i was attempting, once i
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realised it was a straight swap. but i couldnt get awk's gensub to
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insert the \x for %'s and ='s.
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anyway, in the end i found something on the internet and adapted it:
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function decode_url (str, hextab,i,c,c1,c2,len,code) {
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# hex to dec lookup table
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hextab ["0"] = 0; hextab ["8"] = 8;
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hextab ["1"] = 1; hextab ["9"] = 9;
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hextab ["2"] = 2; hextab ["A"] = 10;
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hextab ["3"] = 3; hextab ["B"] = 11;
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hextab ["4"] = 4; hextab ["C"] = 12;
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hextab ["5"] = 5; hextab ["D"] = 13;
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hextab ["6"] = 6; hextab ["E"] = 14;
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hextab ["7"] = 7; hextab ["F"] = 15;
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decoded = "";
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i = 1;
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len = length (str);
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while ( i <= len ) {
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c = substr (str, i, 1);
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# check for usual start of URI hex encoding chars
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if ( c == "%" || c == "=" ) {
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if ( i+2 <= len ) {
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# valid hex encoding?
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c1 = toupper(substr(str, i+1, 1));
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c2 = toupper(substr(str, i+2, 1));
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if ( !(hextab [c1] == "" && hextab [c2] == "") ) {
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code = 0 + hextab [c1] * 16 + hextab [c2] + 0
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c = sprintf ("%c", code)
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i = i + 2
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}
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}
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# + is space apparently
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} else if ( c == "+" ) {
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c = " "
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}
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decoded = decoded c;
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++i;
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}
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return decoded
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}
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> Cheers,
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> Dave.
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> PS the late reply is because the footer on the original mail (If
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> you received this mail in error yadda yadda) got caught in my
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> spam filter, and ended up in my junkmail directory.
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he he...
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might not have been the footer - check my headers. :)
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regards,
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--
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Paul Jakma paul@clubi.ie paul@jakma.org Key ID: 64A2FF6A
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warning: do not ever send email to spam@dishone.st
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Fortune:
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One nuclear bomb can ruin your whole day.
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--
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Irish Linux Users' Group: ilug@linux.ie
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http://www.linux.ie/mailman/listinfo/ilug for (un)subscription information.
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List maintainer: listmaster@linux.ie
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