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#!/usr/bin/perl -w
$|++;
use strict;
use utf8;
binmode(STDIN,"utf8");
binmode(STDOUT,"utf8");
while(<STDIN>) {
chomp;
$_ = " $_ ";
# Delete control characters:
s/[\x{00}-\x{1f}]//g;
# Regularize named HTML/XML escapes:
s/&\s*lt\s*;/</gi; # HTML opening angle bracket
s/&\s*gt\s*;/>/gi; # HTML closing angle bracket
s/&\s*squot\s*;/'/gi; # HTML single quote
s/&\s*quot\s*;/"/gi; # HTML double quote
s/&\s*nbsp\s*;/ /gi; # HTML non-breaking space
s/'/\'/g; # HTML apostrophe
s/&\s*amp\s*;/&/gi; # HTML ampersand (last)
# Regularize known HTML numeric codes:
s/&\s*#\s*160\s*;/ /gi; # no-break space
s/&\s*#45\s*;\s*&\s*#45\s*;/--/g; # hyphen-minus hyphen-minus
s/&\s*#45\s*;/--/g; # hyphen-minus
# Convert arbitrary hex or decimal HTML entities to actual characters:
s/&\#x([0-9A-Fa-f]+);/pack("U", hex($1))/ge;
s/&\#([0-9]+);/pack("U", $1)/ge;
# Regularlize spaces:
s/\x{a0}/ /g; # non-breaking space
s/\x{2009}/ /g; # thin space
s/\x{2028}/ /g; # "line separator"
s/\x{2029}/ /g; # "paragraph separator"
s/\x{202a}/ /g; # "left-to-right embedding"
s/\x{202b}/ /g; # "right-to-left embedding"
s/\x{202c}/ /g; # "pop directional formatting"
s/\x{202d}/ /g; # "left-to-right override"
s/\x{202e}/ /g; # "right-to-left override"
s/\x{85}/ /g; # "next line"
s/\x{fffd}/ /g; # "replacement character"
s/\x{feff}/ /g; # byte-order mark
s/\x{fdd3}/ /g; # "unicode non-character"
# Convert other Windows 1252 characters to UTF-8
s/\x{80}/\x{20ac}/g; # euro sign
s/\x{95}/\x{2022}/g; # bullet
s/\x{99}/\x{2122}/g; # trademark sign
# Currency and measure conversions:
s/ (\d\d): (\d\d)/ $1:$2/g;
s/[\x{20a0}]\x{20ac}]/ EUR /g;
s/[\x{00A3}]/ GBP /g;
s/(\W)([A-Z]+\$?)(\d*\.\d+|\d+)/$1$2 $3/g;
s/(\W)(euro?)(\d*\.\d+|\d+)/$1EUR $3/gi;
# Ridiculous double conversions, UTF8 -> Windows 1252 -> UTF8:
s/�c/--/g; # long dash
s/\x{e2}\x{20ac}oe/\"/g; # opening double quote
s/\x{e2}\x{20ac}\x{9c}/\"/g; # opening double quote
s/\x{e2}\x{20ac}\x{9d}/\"/g; # closing double quote
s/\x{e2}\x{20ac}\x{2122}/\'/g; # apostrophe
s/\x{e2}\x{20ac}\x{201c}/ -- /g; # en dash?
s/\x{e2}\x{20ac}\x{201d}/ -- /g; # em dash?
s/â(\x{80}\x{99}|\x{80}\x{98})/'/g; # single quote?
s/â(\x{80}\x{9c}|\x{80}\x{9d})/"/g; # double quote?
s/\x{c3}\x{9f}/\x{df}/g; # esset
s/\x{c3}\x{0178}/\x{df}/g; # esset
s/\x{c3}\x{a4}/\x{e4}/g; # a umlaut
s/\x{c3}\x{b6}/\x{f6}/g; # o umlaut
s/\x{c3}\x{bc}/\x{fc}/g; # u umlaut
s/\x{c3}\x{84}/\x{c4}/g; # A umlaut: create no C4s after this
s/\x{c3}\x{201e}/\x{c4}/g; # A umlaut: create no C4s after this
s/\x{c3}\x{96}/\x{d6}/g; # O umlaut
s/\x{c3}\x{2013}/\x{d6}/g; # O umlaut
s/\x{c3}\x{bc}/\x{dc}/g; # U umlaut
s/\x{80}/\x{20ac}/g; # euro sign
s/\x{95}/\x{2022}/g; # bullet
s/\x{99}/\x{2122}/g; # trademark sign
# Regularize quotes:
s/ˇ/'/g; # caron
s/´/'/g; # acute accent
s/`/'/g; # grave accent
s/ˉ/'/g; # modified letter macron
s/ ,,/ "/g; # ghetto low-99 quote
s/``/"/g; # latex-style left quote
s/''/"/g; # latex-style right quote
s/\x{300c}/"/g; # left corner bracket
s/\x{300d}/"/g; # right corner bracket
s/\x{3003}/"/g; # ditto mark
s/\x{00a8}/"/g; # diaeresis
s/\x{92}/\'/g; # curly apostrophe
s/\x{2019}/\'/g; # curly apostrophe
s/\x{f03d}/\'/g; # curly apostrophe
s/\x{b4}/\'/g; # curly apostrophe
s/\x{2018}/\'/g; # curly single open quote
s/\x{201a}/\'/g; # low-9 quote
s/\x{93}/\"/g; # curly left quote
s/\x{201c}/\"/g; # curly left quote
s/\x{94}/\"/g; # curly right quote
s/\x{201d}/\"/g; # curly right quote
s/\x{2033}/\"/g; # curly right quote
s/\x{201e}/\"/g; # low-99 quote
s/\x{84}/\"/g; # low-99 quote (bad enc)
s/\x{201f}/\"/g; # high-rev-99 quote
s/\x{ab}/\"/g; # opening guillemet
s/\x{bb}/\"/g; # closing guillemet
s/\x{0301}/'/g; # combining acute accent
s/\x{203a}/\"/g; # angle quotation mark
s/\x{2039}/\"/g; # angle quotation mark
# Space inverted punctuation:
s/¡/ ¡ /g;
s/¿/ ¿ /g;
# Russian abbreviations:
s/ п. п. / п.п. /g;
s/ ст. л. / ст.л. /g;
s/ т. е. / т.е. /g;
s/ т. к. / т.к. /g;
s/ т. ч. / т.ч. /g;
s/ т. д. / т.д. /g;
s/ т. п. / т.п. /g;
s/ и. о. / и.о. /g;
s/ с. г. / с.г. /g;
s/ г. р. / г.р. /g;
s/ т. н. / т.н. /g;
s/ т. ч. / т.ч. /g;
s/ н. э. / н.э. /g;
# Convert foreign numerals into Arabic numerals
tr/०-९/0-9/; # devangari
tr/౦-౯/0-9/; # telugu
tr/೦-೯/0-9/; # kannada
tr/೦-௯/0-9/; # tamil
tr/൦-൯/0-9/; # malayalam
# Random punctuation:
tr/！-～/!-~/;
s/、/,/g;
# s/。/./g;
s/\x{85}/.../g;
s/…/.../g;
s/―/--/g;
s/–/--/g;
s/─/--/g;
s/—/--/g;
s/\x{97}/--/g;
s/•/ * /g;
s/\*/ * /g;
s/،/,/g;
s/؟/?/g;
s/ـ/ /g;
s/Ã ̄/i/g;
s/’/'/g;
s/â€"/"/g;
s/؛/;/g;
# Regularize ligatures:
s/\x{9c}/oe/g; # "oe" ligature
s/\x{0153}/oe/g; # "oe" ligature
s/\x{8c}/Oe/g; # "OE" ligature
s/\x{0152}/Oe/g; # "OE" ligature
s/\x{fb00}/ff/g; # "ff" ligature
s/\x{fb01}/fi/g; # "fi" ligature
s/\x{fb02}/fl/g; # "fl" ligature
s/\x{fb03}/ffi/g; # "ffi" ligature
s/\x{fb04}/ffi/g; # "ffl" ligature
s/β/ß/g; # WMT 2010 error
# Strip extra spaces:
s/\s+/ /g;
s/^\s+//;
s/\s+$//;
print "$_\n";
}
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