intl/chardet/tools/charfreqtostat.pl@6474c204b198 (annotated)
intl/chardet/tools/charfreqtostat.pl
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | #!/usr/bin/perl |
| michael@0 | 2 | # |
| michael@0 | 3 | # This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 4 | # License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 5 | # file, You can obtain one at http://mozilla.org/MPL/2.0/. |
| michael@0 | 6 | sub GenNPL { |
| michael@0 | 7 | my($ret) = << "END_NPL"; |
| michael@0 | 8 | /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| michael@0 | 9 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 10 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 11 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 12 | END_NPL |
| michael@0 | 13 | |
| michael@0 | 14 | return $ret; |
| michael@0 | 15 | } |
| michael@0 | 16 | |
| michael@0 | 17 | print GenNPL(); |
| michael@0 | 18 | $total=0; |
| michael@0 | 19 | @h; |
| michael@0 | 20 | @l; |
| michael@0 | 21 | |
| michael@0 | 22 | while(<STDIN>) |
| michael@0 | 23 | { |
| michael@0 | 24 | @k = split(/\s+/, $_); |
| michael@0 | 25 | @i = unpack("CCCC", $k[0]); |
| michael@0 | 26 | # printf("%x %x %s",$i[0] , $i[1] , "[" . $k[0] . "] " . $i . " " . $j . " " . $k[1] ."\n"); |
| michael@0 | 27 | if((0xA1 <= $i[0]) && (0xA1 <= $i[1])){ |
| michael@0 | 28 | $total += $k[1]; |
| michael@0 | 29 | $v = $i[0] - 0x00A1; |
| michael@0 | 30 | $h[$v] += $k[1]; |
| michael@0 | 31 | $u = $i[1] - 0x00A1; |
| michael@0 | 32 | $l[$u] += $k[1]; |
| michael@0 | 33 | # print "hello $v $h[$v] $u $l[$u]\n"; |
| michael@0 | 34 | } |
| michael@0 | 35 | } |
| michael@0 | 36 | |
| michael@0 | 37 | |
| michael@0 | 38 | $ffh = 0.0; |
| michael@0 | 39 | $ffl = 0.0; |
| michael@0 | 40 | for($i=0x00A1;$i< 0x00FF ; $i++) |
| michael@0 | 41 | { |
| michael@0 | 42 | $fh[$i - 0x00a1] = $h[$i- 0x00a1] / $total; |
| michael@0 | 43 | $ffh += $fh[$i - 0x00a1]; |
| michael@0 | 44 | |
| michael@0 | 45 | $fl[$i - 0x00a1] = $l[$i- 0x00a1] / $total; |
| michael@0 | 46 | $ffl += $fl[$i - 0x00a1]; |
| michael@0 | 47 | } |
| michael@0 | 48 | $mh = $ffh / 94.0; |
| michael@0 | 49 | $ml = $ffl / 94.0; |
| michael@0 | 50 | |
| michael@0 | 51 | $sumh=0.0; |
| michael@0 | 52 | $suml=0.0; |
| michael@0 | 53 | for($i=0x00A1;$i< 0x00FF ; $i++) |
| michael@0 | 54 | { |
| michael@0 | 55 | $sh = $fh[$i - 0x00a1] - $mh; |
| michael@0 | 56 | $sh *= $sh; |
| michael@0 | 57 | $sumh += $sh; |
| michael@0 | 58 | |
| michael@0 | 59 | $sl = $fl[$i - 0x00a1] - $ml; |
| michael@0 | 60 | $sl *= $sl; |
| michael@0 | 61 | $suml += $sl; |
| michael@0 | 62 | } |
| michael@0 | 63 | $sumh /= 94.0; |
| michael@0 | 64 | $suml /= 94.0; |
| michael@0 | 65 | $stdh = sqrt($sumh); |
| michael@0 | 66 | $stdl = sqrt($suml); |
| michael@0 | 67 | |
| michael@0 | 68 | print "{\n"; |
| michael@0 | 69 | print " {\n"; |
| michael@0 | 70 | for($i=0x00A1;$i< 0x00FF ; $i++) |
| michael@0 | 71 | { |
| michael@0 | 72 | if($i eq 0xfe) { |
| michael@0 | 73 | printf(" %.6ff \/\/ FreqH[%2x]\n", $fh[$i - 0x00a1] , $i); |
| michael@0 | 74 | } else { |
| michael@0 | 75 | printf(" %.6ff, \/\/ FreqH[%2x]\n", $fh[$i - 0x00a1] , $i); |
| michael@0 | 76 | } |
| michael@0 | 77 | } |
| michael@0 | 78 | print " },\n"; |
| michael@0 | 79 | printf ("%.6ff, \/\/ Lead Byte StdDev\n", $stdh); |
| michael@0 | 80 | printf ("%.6ff, \/\/ Lead Byte Mean\n", $mh); |
| michael@0 | 81 | printf ("%.6ff, \/\/ Lead Byte Weight\n", $stdh / ($stdh + $stdl)); |
| michael@0 | 82 | print " {\n"; |
| michael@0 | 83 | for($i=0x00A1;$i< 0x00FF ; $i++) |
| michael@0 | 84 | { |
| michael@0 | 85 | if($i eq 0xfe) { |
| michael@0 | 86 | printf(" %.6ff \/\/ FreqL[%2x]\n", $fl[$i - 0x00a1] , $i); |
| michael@0 | 87 | } else { |
| michael@0 | 88 | printf(" %.6ff, \/\/ FreqL[%2x]\n", $fl[$i - 0x00a1] , $i); |
| michael@0 | 89 | } |
| michael@0 | 90 | } |
| michael@0 | 91 | print " },\n"; |
| michael@0 | 92 | printf ("%.6ff, \/\/ Trail Byte StdDev\n", $stdl); |
| michael@0 | 93 | printf ("%.6ff, \/\/ Trail Byte Mean\n", $ml); |
| michael@0 | 94 | printf ("%.6ff \/\/ Trial Byte Weight\n", $stdl / ($stdh + $stdl)); |
| michael@0 | 95 | print "};\n"; |
