intl/chardet/tools/charfreqtostat.pl@129ffea94266
intl/chardet/tools/charfreqtostat.pl
Sat, 03 Jan 2015 20:18:00 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Sat, 03 Jan 2015 20:18:00 +0100
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
- permissions
- -rw-r--r--
Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.
1 #!/usr/bin/perl
2 #
3 # This Source Code Form is subject to the terms of the Mozilla Public
4 # License, v. 2.0. If a copy of the MPL was not distributed with this
5 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
6 sub GenNPL {
7 my($ret) = << "END_NPL";
8 /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
9 /* This Source Code Form is subject to the terms of the Mozilla Public
10 * License, v. 2.0. If a copy of the MPL was not distributed with this
11 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
12 END_NPL
14 return $ret;
15 }
17 print GenNPL();
18 $total=0;
19 @h;
20 @l;
22 while(<STDIN>)
23 {
24 @k = split(/\s+/, $_);
25 @i = unpack("CCCC", $k[0]);
26 # printf("%x %x %s",$i[0] , $i[1] , "[" . $k[0] . "] " . $i . " " . $j . " " . $k[1] ."\n");
27 if((0xA1 <= $i[0]) && (0xA1 <= $i[1])){
28 $total += $k[1];
29 $v = $i[0] - 0x00A1;
30 $h[$v] += $k[1];
31 $u = $i[1] - 0x00A1;
32 $l[$u] += $k[1];
33 # print "hello $v $h[$v] $u $l[$u]\n";
34 }
35 }
38 $ffh = 0.0;
39 $ffl = 0.0;
40 for($i=0x00A1;$i< 0x00FF ; $i++)
41 {
42 $fh[$i - 0x00a1] = $h[$i- 0x00a1] / $total;
43 $ffh += $fh[$i - 0x00a1];
45 $fl[$i - 0x00a1] = $l[$i- 0x00a1] / $total;
46 $ffl += $fl[$i - 0x00a1];
47 }
48 $mh = $ffh / 94.0;
49 $ml = $ffl / 94.0;
51 $sumh=0.0;
52 $suml=0.0;
53 for($i=0x00A1;$i< 0x00FF ; $i++)
54 {
55 $sh = $fh[$i - 0x00a1] - $mh;
56 $sh *= $sh;
57 $sumh += $sh;
59 $sl = $fl[$i - 0x00a1] - $ml;
60 $sl *= $sl;
61 $suml += $sl;
62 }
63 $sumh /= 94.0;
64 $suml /= 94.0;
65 $stdh = sqrt($sumh);
66 $stdl = sqrt($suml);
68 print "{\n";
69 print " {\n";
70 for($i=0x00A1;$i< 0x00FF ; $i++)
71 {
72 if($i eq 0xfe) {
73 printf(" %.6ff \/\/ FreqH[%2x]\n", $fh[$i - 0x00a1] , $i);
74 } else {
75 printf(" %.6ff, \/\/ FreqH[%2x]\n", $fh[$i - 0x00a1] , $i);
76 }
77 }
78 print " },\n";
79 printf ("%.6ff, \/\/ Lead Byte StdDev\n", $stdh);
80 printf ("%.6ff, \/\/ Lead Byte Mean\n", $mh);
81 printf ("%.6ff, \/\/ Lead Byte Weight\n", $stdh / ($stdh + $stdl));
82 print " {\n";
83 for($i=0x00A1;$i< 0x00FF ; $i++)
84 {
85 if($i eq 0xfe) {
86 printf(" %.6ff \/\/ FreqL[%2x]\n", $fl[$i - 0x00a1] , $i);
87 } else {
88 printf(" %.6ff, \/\/ FreqL[%2x]\n", $fl[$i - 0x00a1] , $i);
89 }
90 }
91 print " },\n";
92 printf ("%.6ff, \/\/ Trail Byte StdDev\n", $stdl);
93 printf ("%.6ff, \/\/ Trail Byte Mean\n", $ml);
94 printf ("%.6ff \/\/ Trial Byte Weight\n", $stdl / ($stdh + $stdl));
95 print "};\n";
