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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

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Roy Tam 2018-01-19 03:59:58 +08:00
commit dcd9973243
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95
intl/chardet/tools/charfreqtostat.pl Normal file
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#!/usr/bin/perl
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
sub GenNPL {
my($ret) = << "END_NPL";
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
END_NPL
return $ret;
}
print GenNPL();
$total=0;
@h;
@l;
while(<STDIN>)
{
@k = split(/\s+/, $_);
@i = unpack("CCCC", $k[0]);
# printf("%x %x %s",$i[0] , $i[1] , "[" . $k[0] . "] " . $i . " " . $j . " " . $k[1] ."\n");
if((0xA1 <= $i[0]) && (0xA1 <= $i[1])){
$total += $k[1];
$v = $i[0] - 0x00A1;
$h[$v] += $k[1];
$u = $i[1] - 0x00A1;
$l[$u] += $k[1];
# print "hello $v $h[$v] $u $l[$u]\n";
}
}
$ffh = 0.0;
$ffl = 0.0;
for($i=0x00A1;$i< 0x00FF ; $i++)
{
$fh[$i - 0x00a1] = $h[$i- 0x00a1] / $total;
$ffh += $fh[$i - 0x00a1];
$fl[$i - 0x00a1] = $l[$i- 0x00a1] / $total;
$ffl += $fl[$i - 0x00a1];
}
$mh = $ffh / 94.0;
$ml = $ffl / 94.0;
$sumh=0.0;
$suml=0.0;
for($i=0x00A1;$i< 0x00FF ; $i++)
{
$sh = $fh[$i - 0x00a1] - $mh;
$sh *= $sh;
$sumh += $sh;
$sl = $fl[$i - 0x00a1] - $ml;
$sl *= $sl;
$suml += $sl;
}
$sumh /= 94.0;
$suml /= 94.0;
$stdh = sqrt($sumh);
$stdl = sqrt($suml);
print "{\n";
print " {\n";
for($i=0x00A1;$i< 0x00FF ; $i++)
{
if($i eq 0xfe) {
printf(" %.6ff \/\/ FreqH[%2x]\n", $fh[$i - 0x00a1] , $i);
} else {
printf(" %.6ff, \/\/ FreqH[%2x]\n", $fh[$i - 0x00a1] , $i);
}
}
print " },\n";
printf ("%.6ff, \/\/ Lead Byte StdDev\n", $stdh);
printf ("%.6ff, \/\/ Lead Byte Mean\n", $mh);
printf ("%.6ff, \/\/ Lead Byte Weight\n", $stdh / ($stdh + $stdl));
print " {\n";
for($i=0x00A1;$i< 0x00FF ; $i++)
{
if($i eq 0xfe) {
printf(" %.6ff \/\/ FreqL[%2x]\n", $fl[$i - 0x00a1] , $i);
} else {
printf(" %.6ff, \/\/ FreqL[%2x]\n", $fl[$i - 0x00a1] , $i);
}
}
print " },\n";
printf ("%.6ff, \/\/ Trail Byte StdDev\n", $stdl);
printf ("%.6ff, \/\/ Trail Byte Mean\n", $ml);
printf ("%.6ff \/\/ Trial Byte Weight\n", $stdl / ($stdh + $stdl));
print "};\n";