major mert clean up, stuff for simple system demo

7 files changed, 1044 insertions, 0 deletions

diff --git a/corpus/support/README b/corpus/support/README
new file mode 100644
index 00000000..fdbd523e
--- /dev/null
+++ b/corpus/support/README
@@ -0,0 +1,2 @@
+Run ./tokenize.sh to tokenize text
+Edit eng_token_patterns and eng_token_list to add rules for things not to segment
diff --git a/corpus/support/fix-contract.pl b/corpus/support/fix-contract.pl
new file mode 100755
index 00000000..f1e191ab
--- /dev/null
+++ b/corpus/support/fix-contract.pl
@@ -0,0 +1,10 @@
+#!/usr/bin/perl -w
+use strict;
+while(<>) {
+  #s/ (pre|anti|re|pro|inter|intra|multi|e|x|neo) - / $1- /ig;
+  #s/ - (year) - (old)/ -$1-$2/ig;
+  s/ ' (s|m|ll|re|d|ve) / '$1 /ig;
+  s/n ' t / n't /ig;
+  print;
+}
+
diff --git a/corpus/support/quote-norm.pl b/corpus/support/quote-norm.pl
new file mode 100755
index 00000000..0c5b9c26
--- /dev/null
+++ b/corpus/support/quote-norm.pl
@@ -0,0 +1,64 @@
+#!/usr/bin/perl -w
+use strict;
+use utf8;
+binmode(STDIN,"utf8");
+binmode(STDOUT,"utf8");
+while(<STDIN>) {
+  chomp;
+  $_ = " $_ ";
+  s/&\s*lt\s*;/</gi;
+  s/&\s*gt\s*;/>/gi;
+  s/&\s*squot\s*;/'/gi;
+  s/&\s*quot\s*;/"/gi;
+  s/&\s*amp\s*;/&/gi;
+  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 $3/gi;
+  s/&\s*#45\s*;\s*&\s*#45\s*;/--/g;
+  s/&\s*#45\s*;/--/g;
+  s/ ,,/ "/g;
+  s/``/"/g;
+  s/''/"/g;
+  s/〃/"/g;
+  s/¨/"/g;
+  s/¡/ ¡ /g;
+  s/¿/ ¿ /g;
+  s/ˇ/'/g;
+  s/´/'/g;
+  s/`/'/g;
+  s/’/'/g;
+  s/ ́/'/g;
+  s/‘/'/g;
+  s/ˉ/'/g;
+  s/β/ß/g; # WMT 2010 error
+  s/“/"/g;
+  s/”/"/g;
+  s/«/"/g;
+  s/»/"/g;
+  tr/！-～/!-~/;
+  s/、/,/g;
+  s/。/./g;
+  s/…/.../g;
+  s/―/--/g;
+  s/–/--/g;
+  s/─/--/g;
+  s/—/--/g;
+  s/•/ * /g;
+  s/\*/ * /g;
+  s/،/,/g;
+  s/؟/?/g;
+  s/ـ/ /g;
+  s/Ã ̄/i/g;
+  s/’/'/g;
+  s/â€"/"/g;
+  s/؛/;/g;
+		    
+  s/\s+/ /g;
+  s/^\s+//;
+  s/\s+$//;
+  s/[\x{00}-\x{1f}]//g;
+  print "$_\n";
+}
+
diff --git a/corpus/support/token_list b/corpus/support/token_list
new file mode 100644
index 00000000..28eb4396
--- /dev/null
+++ b/corpus/support/token_list
@@ -0,0 +1,212 @@
+##################### hyphenated words added by Fei since 3/7/05
+##X-ray
+
+##################### words made of punct only
+:-
+:-)
+:-(
++=
+-=
+.=
+*=
+>=
+<=
+==
+&&
+||
+=>
+->
+<-
+:)
+:(
+;)
+
+#################### abbr added by Fei
+oz.
+fl.
+tel.
+1.
+2.
+3.
+4.
+5.
+6.
+7.
+8.
+9.
+10.
+
+##################### abbreviation: words that contain period.
+U.A.E
+Ala.
+Ph.D.
+min.
+max.
+z.B.
+d.h.
+ggf.
+ca.
+bzw.
+bzgl.
+Eng.
+i.e.
+a.m.
+am.
+A.M.
+Apr.
+Ariz.
+Ark.
+Aug.
+B.A.T.
+B.A.T
+Calif.
+Co.
+Conn.
+Corp.
+Cos.
+D.C.
+Dec.
+Dept.
+Dr.
+Drs.
+Feb.
+Fla.
+Fri.
+Ga.
+Gen.
+gen.
+GEN.
+Gov.
+Govt.
+Ill.
+Inc.
+Jan.
+Jr.
+Jul.
+Jun.
+Kan.
+L.A.
+Lieut.
+Lt.
+Ltd.
+Ma.
+Mar.
+Mass.
+Md.
+Mfg.
+Mgr.
+Mexican-U.S.
+Mich.
+Minn.
+Mo.
+Mon.
+Mr.
+Mrs.
+Ms.
+Mt.
+N.D.
+Neb.
+Nev.
+No.
+Nos.
+Nov.
+Oct.
+Okla.
+Op.
+Ore.
+Pa.
+p.m
+p.m.
+I.B.C.
+N.T.V
+Pres.
+Prof.
+Prop.
+Rd.
+Rev.
+R.J.
+C.L
+Rte.
+Sat.
+W.T
+Sen.
+Sep.
+Sept.
+Sgt.
+Sr.
+SR.
+St.
+Ste.
+Sun.
+Tenn.
+Tex.
+Thu.
+Tue.
+Univ.
+Va.
+Vt.
+Wed.
+approx.
+dept.
+e.g.
+E.G.
+eg.
+est.
+etc.
+ex.
+ext.
+ft.
+hon.
+hr.
+hrs.
+lab.
+lb.
+lbs.
+mass.
+misc.
+no.
+nos.
+nt.
+para.
+paras.
+pct.
+prod.
+rec.
+ref.
+rel.
+rep.
+sq.
+st.
+stg.
+vol.
+vs.
+U.S.
+J.S.
+U.N.
+u.n.
+A.
+B.
+C.
+D.
+E.
+F.
+G.
+H.
+I.
+J.
+K.
+L.
+M.
+N.
+O.
+P.
+Q.
+R.
+S.
+T.
+U.
+V.
+W.
+X.
+Y.
+Z.
diff --git a/corpus/support/token_patterns b/corpus/support/token_patterns
new file mode 100644
index 00000000..c0e6fe1a
--- /dev/null
+++ b/corpus/support/token_patterns
@@ -0,0 +1,3 @@
+/^(al|el|ul|e)\-[a-z]+$/
+/^(\d+)\.$/
+
diff --git a/corpus/support/tokenizer.pl b/corpus/support/tokenizer.pl
new file mode 100755
index 00000000..23be00a5
--- /dev/null
+++ b/corpus/support/tokenizer.pl
@@ -0,0 +1,717 @@
+#!/usr/bin/env perl
+
+my $script_dir;
+BEGIN {$^W = 1; use Cwd qw/ abs_path /; use File::Basename; $script_dir = dirname(abs_path($0)); push @INC, $script_dir; }  
+
+use strict;
+use utf8;
+
+binmode STDIN, ":utf8";
+binmode STDOUT, ":utf8";
+binmode STDERR, ":utf8";
+
+my $debug = 0;
+
+
+############ options: 
+### for all options:
+### 0 means no split on that symbol
+### 1 means split on that symbol in all cases.
+### 2 means do not split in condition 1.
+### n means do not split in any of the conditions in the set {1, 2, ..., n-1}.
+
+
+### prefix
+## for "#": #90
+my $Split_On_SharpSign = 2; # 2: do not split on Num, e.g., "#90"
+
+
+############## "infix"
+my $Split_On_Tilde = 2;  # 2: do not split on Num, e.g., "12~13".
+
+my $Split_On_Circ = 2;   # 2: do not split on Num, e.g, "2^3"
+
+## for "&"
+my $Split_On_AndSign = 2;  # 2: do not split on short Name, e.g., "AT&T".
+
+## for hyphen: 1990-1992
+my $Split_On_Dash = 2;  ## 2: do not split on number, e.g., "22-23".
+my $Split_On_Underscore = 0;  ## 0: do not split by underline
+
+## for ":": 5:4
+my $Split_On_Semicolon = 2; ## 2: don't split for num, e.g., "5:4"
+
+###########  suffix
+## for percent sign: 5%
+my $Split_On_PercentSign = 1;      ## 2: don't split num, e.g., 5%
+
+############# others
+## for slash: 1/4
+my $Split_On_Slash = 2;  ## 2: don't split on number, e.g., 1/4.
+my $Split_On_BackSlash = 0;  ## 0: do not split on "\", e.g., \t
+
+### for "$": US$120
+my $Split_On_DollarSign = 2; ### 2: US$120 => "US$ 120"
+                             ### 1: US$120 => "US $ 120"
+## for 's etc.
+my $Split_NAposT = 1;  ## n't   
+my $Split_AposS = 1;   ## 's
+my $Split_AposM = 1;   ## 'm
+my $Split_AposRE = 1;  ## 're
+my $Split_AposVE = 1;  ## 've
+my $Split_AposLL = 1;  ## 'll
+my $Split_AposD  = 1;  ## 'd
+
+
+### some patterns
+my $common_right_punc = '\.|\,|\;|:|\!|\?|\"|\)|\]|\}|\>|\-';
+
+#### step 1: read files
+
+my $workdir = $script_dir;
+my $dict_file = "$workdir/token_list";
+my $word_patt_file = "$workdir/token_patterns";
+
+open(my $dict_fp, "$dict_file") or die;
+
+# read in the list of words that should not be segmented, 
+##  e.g.,"I.B.M.", co-operation.
+my %dict_hash = ();
+my $dict_entry = 0;
+while(<$dict_fp>){
+    chomp;
+    next if /^\s*$/;
+    s/^\s+//;
+    s/\s+$//;
+    tr/A-Z/a-z/;
+    $dict_hash{$_} = 1;
+    $dict_entry ++;
+}
+
+open(my $patt_fp, "$word_patt_file") or die;
+my @word_patts = ();
+my $word_patt_num = 0;
+while(<$patt_fp>){
+    chomp;
+    next if /^\s*$/;
+    s/^\s+//;
+    s/\s+$//;
+    s/^\/(.+)\/$/$1/;   # remove / / around the pattern
+    push(@word_patts, $_);
+    $word_patt_num ++;
+}
+
+
+###### step 2: process the input file
+my $orig_token_total = 0;
+my $deep_proc_token_total = 0;
+my $new_token_total = 0;
+
+my $line_total = 0;
+my $content_line_total = 0;
+
+while(<STDIN>){
+    chomp();
+
+    $line_total ++;
+    if ($line_total % 100000 == 0) { print STDERR " [$line_total]\n"; }
+    elsif ($line_total % 2500 == 0) { print STDERR "."; }
+
+    if(/^(\[b\s+|\]b|\]f|\[f\s+)/ || (/^\[[bf]$/) || (/^\s*$/) || /^<DOC/ || /^<\/DOC/) {
+	## markup
+	print STDOUT "$_\n";
+	next;
+    }
+
+    $content_line_total ++;
+
+    my $orig_num = 0;
+    my $deep_proc_num = 0;
+
+    my $new_line = proc_line($_, \$orig_num, \$deep_proc_num);
+
+    $orig_token_total += $orig_num;
+    $deep_proc_token_total += $deep_proc_num;
+
+    $new_line =~ s/\s+$//;
+    $new_line =~ s/^\s+//;
+    my @parts = split(/\s+/, $new_line);
+    $new_token_total += scalar @parts;
+
+    $new_line =~ s/\s+/ /g;
+# fix sgm-markup tokenization
+    $new_line =~ s/\s*<\s+seg\s+id\s+=\s+(\d+)\s+>/<seg id=$1>/;
+    $new_line =~ s/\s*<\s+(p|hl)\s+>/<$1>/;
+    $new_line =~ s/\s*<\s+\/\s+(p|hl|DOC)\s+>/<\/$1>/;
+    $new_line =~ s/<\s+\/\s+seg\s+>/<\/seg>/;
+    if ($new_line =~ /^\s*<\s+DOC\s+/) {
+	$new_line =~ s/\s+//g;
+	$new_line =~ s/DOC/DOC /;
+	$new_line =~ s/sys/ sys/;
+    }
+    if ($new_line =~ /^\s*<\s+(refset|srcset)\s+/) {
+	$new_line =~ s/\s+//g;
+	$new_line =~ s/(set|src|tgt|trg)/ $1/g;
+    }
+
+    print STDOUT " $new_line\n";
+}
+print STDERR "\n";
+
+########################################################################
+   
+### tokenize a line. 
+sub proc_line {
+    my @params = @_;
+    my $param_num = scalar @params;
+
+    if(($param_num < 1) || ($param_num > 3)){
+	die "wrong number of params for proc_line: $param_num\n";
+    }
+
+    my $orig_line = $params[0];
+
+    $orig_line =~ s/^\s+//;
+    $orig_line =~ s/\s+$//;
+
+    my @parts = split(/\s+/, $orig_line);
+
+    if($param_num >= 2){
+	my $orig_num_ptr = $params[1];
+	$$orig_num_ptr = scalar @parts;
+    }
+
+    my $new_line = "";
+
+    my $deep_proc_token = 0;
+    foreach my $part (@parts){
+	my $flag = -1;
+	$new_line .= proc_token($part, \$flag) . " ";
+	$deep_proc_token += $flag;
+    }
+
+    if($param_num == 3){
+	my $deep_num_ptr = $params[2];
+	$$deep_num_ptr = $deep_proc_token;
+    }
+
+    return $new_line;
+}
+
+
+
+## Tokenize a str that does not contain " ", return the new string
+## The function handles the cases that the token needs not be segmented.
+## for other cases, it calls deep_proc_token()
+sub proc_token {
+    my @params = @_;
+    my $param_num = scalar @params;
+    if($param_num > 2){
+	die "proc_token: wrong number of params: $param_num\n";
+    }
+
+    my $token = $params[0];
+
+    if(!defined($token)){
+	return "";
+    }
+
+    my $deep_proc_flag; 
+
+    if($param_num == 2){
+	$deep_proc_flag = $params[1];
+        $$deep_proc_flag = 0;
+    }
+
+    if($debug){
+	print STDERR "pro_token:+$token+\n";
+    }
+
+    ### step 0: it has only one char
+    if(($token eq "") || ($token=~ /^.$/)){
+	## print STDERR "see +$token+\n";
+	return $token;
+    }
+
+    ## step 1: check the most common case
+    if($token =~ /^[a-z0-9\p{Cyrillic}\p{Greek}\p{Hebrew}\p{Han}\p{Arabic}]+$/i){
+	### most common cases
+	return $token;
+    }
+
+    ## step 2: check whether it is some NE entity
+    ### 1.2.4.6
+    if($token =~ /^\d+(.\d+)+$/){
+	return $token;
+    }
+
+    ## 1,234,345.34
+    if($token =~ /^\d+(\.\d{3})*,\d+$/){
+	## number
+	return $token;
+    }
+    if($token =~ /^\d+(,\d{3})*\.\d+$/){
+	## number
+	return $token;
+    }
+    if($token =~ /^(@|#)[A-Za-z0-9_\p{Cyrillic}\p{Greek}\p{Hebrew}\p{Han}\p{Arabic}]+.*$/){
+        ## twitter hashtag or address
+        return proc_rightpunc($token);
+    }
+
+    if($token =~ /^[a-z0-9\_\-]+\@[a-z\d\_\-]+(\.[a-z\d\_\-]+)*(.*)$/i){
+	### email address: xxx@yy.zz
+	return proc_rightpunc($token);
+    }
+
+    if($token =~ /^(mailto|http|https|ftp|gopher|telnet|file)\:\/{0,2}([^\.]+)(\.(.+))*$/i){
+	### URL: http://xx.yy.zz
+	return proc_rightpunc($token);
+    }
+
+    if($token =~ /^(www)(\.(.+))+$/i){
+	###  www.yy.dd/land/
+	return proc_rightpunc($token);
+    }
+
+    if($token =~ /^(\w+\.)+(com|co|edu|org|gov|ly|cz|ru|eu)(\.[a-z]{2,3})?\:{0,2}(\/\S*)?$/i){
+	### URL: upenn.edu/~xx
+	return proc_rightpunc($token);
+    }
+
+    if($token =~ /^\(\d{3}\)\d{3}(\-\d{4})($common_right_punc)*$/){
+	## only handle American phone numbers: e.g., (914)244-4567
+	return proc_rightpunc($token);
+    }
+
+    #my $t1 = '[\x{0600}-\x{06ff}a-z\d\_\.\-]';
+    my $t1 = '[a-z\d\_\-\.\p{Cyrillic}\p{Greek}\p{Hebrew}\p{Han}\p{Arabic}]';
+    if($token =~ /^\/(($t1)+\/)+($t1)+\/?$/i){
+	### /nls/p/....
+	return $token;
+    }
+
+    if($token =~ /^\\(($t1)+\\)+($t1)+\\?$/i){
+	### \nls\p\....
+	return $token;
+    }
+	
+    ## step 3: check the dictionary
+    my $token_lc = $token;
+    $token_lc =~ tr/A-Z/a-z/;
+
+    if(defined($dict_hash{$token_lc})){
+	return $token;
+    }
+
+    ## step 4: check word_patterns
+    my $i=1;
+    foreach my $patt (@word_patts){
+	if($token_lc =~ /$patt/){
+	    if($debug){
+		print STDERR "+$token+ match pattern $i: +$patt+\n";
+	    }
+	    return $token;
+	}else{
+	    $i++;
+	}
+    }
+
+    ## step 5: call deep tokenization
+    if($param_num == 2){
+	$$deep_proc_flag = 1;
+    }
+    return deep_proc_token($token);
+}
+
+
+### remove punct on the right side
+### e.g., xxx@yy.zz, => xxx@yy.zz ,
+sub proc_rightpunc {
+    my ($token) = @_;
+
+    $token =~ s/(($common_right_punc)+)$/ $1 /;
+    if($token =~ /\s/){
+	return proc_line($token);
+    }else{
+	return $token;
+    }
+}
+    
+
+
+#######################################
+### return the new token: 
+###   types of punct:
+##      T1 (2):   the punct is always a token by itself no matter where it
+###           appears:   " ;  
+##      T2 (15):  the punct that can be a part of words made of puncts only.
+##               ` ! @ + = [ ] ( ) { } | < > ? 
+##      T3 (15):  the punct can be part of a word that contains [a-z\d]
+##        T3: ~ ^ & : , # * % - _ \ / . $ '
+##             infix: ~ (12~13), ^ (2^3), & (AT&T),  : ,  
+##             prefix: # (#9),  * (*3), 
+##             suffix: % (10%), 
+##             infix+prefix: - (-5), _ (_foo), 
+##             more than one position: \ /  . $
+##             Appos: 'm n't ...
+
+##   1. separate by puncts in T1
+##   2. separate by puncts in T2 
+##   3. deal with punct T3 one by one according to options 
+##   4. if the token remains unchanged after step 1-3, return the token
+
+## $line contains at least 2 chars, and no space.
+sub deep_proc_token {
+    my ($line) = @_;
+    if($debug){
+	print STDERR "deep_proc_token: +$line+\n";
+    }
+
+    ##### step 0: if it mades up of all puncts, remove one punct at a time.
+    if($line !~ /[\p{Cyrillic}\p{Greek}\p{Hebrew}\p{Han}\p{Arabic}a-zA-Z\d]/){
+	if($line =~ /^(\!+|\@+|\++|\=+|\*+|\<+|\>+|\|+|\?+|\.+|\-+|\_+|\&+)$/){
+	    ## ++ @@@@ !!! ....
+	    return $line;
+	}
+
+	if($line =~ /^(.)(.+)$/){
+	    my $t1 = $1;
+	    my $t2 = $2;
+	    return $t1 . " " . proc_token($t2);
+	}else{
+	    ### one char only
+	    print STDERR "deep_proc_token: this should not happen: +$line+\n";
+	    return $line;
+	}
+    }
+
+    ##### step 1: separate by punct T2 on the boundary
+    my $t2 = '\`|\!|\@|\+|\=|\[|\]|\<|\>|\||\(|\)|\{|\}|\?|\"|;';
+    if($line =~ s/^(($t2)+)/$1 /){
+	return proc_line($line);
+    }
+	
+    if($line =~ s/(($t2)+)$/ $1/){
+	return proc_line($line);
+    }	
+
+    ## step 2: separate by punct T2 in any position
+    if($line =~ s/(($t2)+)/ $1 /g){
+	return proc_line($line);
+    }
+
+    ##### step 3: deal with special puncts in T3.
+    if($line =~ /^(\,+)(.+)$/){
+	my $t1 = $1;
+	my $t2 = $2;
+	return proc_token($t1) . " " . proc_token($t2);
+    }
+
+    if($line =~ /^(.*[^\,]+)(\,+)$/){
+	## 19.3,,, => 19.3 ,,,
+	my $t1 = $1;
+	my $t2 = $2;
+	return proc_token($t1) . " " . proc_token($t2);
+    }
+
+    ## remove the ending periods that follow number etc.
+    if($line =~ /^(.*(\d|\~|\^|\&|\:|\,|\#|\*|\%|\-|\_|\/|\\|\$|\'))(\.+)$/){
+	##    12~13. => 12~13 .
+	my $t1 = $1;
+	my $t3 = $3;
+	return proc_token($t1) . " " . proc_token($t3);
+    }
+
+    ###  deal with "$"
+    if(($line =~ /\$/) && ($Split_On_DollarSign > 0)){
+	my $suc = 0;
+	if($Split_On_DollarSign == 1){
+	    ## split on all occasation
+	    $suc = ($line =~ s/(\$+)/ $1 /g);
+	}else{
+	    ## split only between $ and number
+	    $suc = ($line =~ s/(\$+)(\d)/$1 $2/g);
+	}
+
+	if($suc){
+	    return proc_line($line);
+	}
+    }
+
+    ## deal with "#"
+    if(($line =~ /\#/) && ($Split_On_SharpSign > 0)){
+	my $suc = 0;
+	if($Split_On_SharpSign >= 2){
+	    ### keep #50 as a token
+	    $suc = ($line =~ s/(\#+)(\D)/ $1 $2/gi);
+	}else{
+	    $suc = ($line =~ s/(\#+)/ $1 /gi);
+	}
+
+	if($suc){
+	    return proc_line($line);
+	}
+    }
+
+    ## deal with '
+    if($line =~ /\'/){
+	my $suc = ($line =~ s/([^\'])([\']+)$/$1 $2/g);  ## xxx'' => xxx '' 
+	
+	### deal with ': e.g., 's, 't, 'm, 'll, 're, 've, n't
+
+	##  'there => ' there   '98 => the same
+	$suc += ($line =~ s/^(\'+)([a-z]+)/ $1 $2/gi);
+	
+	##  note that \' and \. could interact: e.g.,  U.S.'s;   're.
+	if($Split_NAposT && ($line =~ /^(.*[a-z]+)(n\'t)([\.]*)$/i)){
+	    ## doesn't => does n't
+	    my $t1 = $1;
+	    my $t2 = $2;
+	    my $t3 = $3;
+	    return proc_token($t1) . " " . $t2 . " " . proc_token($t3);
+	}
+
+	## 's, 't, 'm,  'll, 're, 've: they've => they 've 
+        ## 1950's => 1950 's     Co.'s => Co. 's
+	if($Split_AposS && ($line =~ /^(.+)(\'s)(\W*)$/i)){
+	    my $t1 = $1;
+	    my $t2 = $2;
+	    my $t3 = $3;
+	    return proc_token($t1) . " " . $t2 . " " . proc_token($t3);
+	}
+
+	if($Split_AposM && ($line =~ /^(.*[a-z]+)(\'m)(\.*)$/i)){
+	    my $t1 = $1;
+	    my $t2 = $2;
+	    my $t3 = $3;
+	    return proc_token($t1) . " " . $t2 . " " . proc_token($t3);
+	}
+
+
+	if($Split_AposRE && ($line =~ /^(.*[a-z]+)(\'re)(\.*)$/i)){
+	    my $t1 = $1;
+	    my $t2 = $2;
+	    my $t3 = $3;
+	    return proc_token($t1) . " " . $t2 . " " . proc_token($t3);
+	}
+
+	if($Split_AposVE && ($line =~ /^(.*[a-z]+)(\'ve)(\.*)$/i)){
+	    my $t1 = $1;
+	    my $t2 = $2;
+	    my $t3 = $3;
+	    return proc_token($t1) . " " . $t2 . " " . proc_token($t3);
+	}
+
+	if($Split_AposLL && ($line =~ /^(.*[a-z]+)(\'ll)(\.*)$/i)){
+	    my $t1 = $1;
+	    my $t2 = $2;
+	    my $t3 = $3;
+	    return proc_token($t1) . " " . $t2 . " " . proc_token($t3);
+	}
+
+	if($Split_AposD && ($line =~ /^(.*[a-z]+)(\'d)(\.*)$/i)){
+	    my $t1 = $1;
+	    my $t2 = $2;
+	    my $t3 = $3;
+	    return proc_token($t1) . " " . $t2 . " " . proc_token($t3);	    
+	}
+	
+	if($suc){
+	    return proc_line($line);
+	}
+    }
+
+
+    ## deal with "~"
+    if(($line =~ /\~/) && ($Split_On_Tilde > 0)){
+	my $suc = 0;
+	if($Split_On_Tilde >= 2){
+	    ## keep 12~13 as one token
+	    $suc += ($line =~ s/(\D)(\~+)/$1 $2 /g);
+	    $suc += ($line =~ s/(\~+)(\D)/ $1 $2/g);
+	    $suc += ($line =~ s/^(\~+)(\d)/$1 $2/g);
+	    $suc += ($line =~ s/(\d)(\~+)$/$1 $2/g);
+	}else{
+	    $suc += ($line =~ s/(\~+)/ $1 /g);	
+	}
+	if($suc){
+	    return proc_line($line);
+	}
+    }
+
+    ## deal with "^"
+    if(($line =~ /\^/) && ($Split_On_Circ > 0)){
+	my $suc = 0;
+	if($Split_On_Circ >= 2){
+	    ## keep 12~13 as one token
+	    $suc += ($line =~ s/(\D)(\^+)/$1 $2 /g);
+	    $suc += ($line =~ s/(\^+)(\D)/ $1 $2/g);
+	}else{
+	    $suc = ($line =~ s/(\^+)/ $1 /g);	
+	}
+	if($suc){
+	    return proc_line($line);
+	}
+    }
+
+    ## deal with ":"
+    if(($line =~ /\:/) && ($Split_On_Semicolon > 0)){
+	## 2: => 2 :
+	my $suc = ($line =~ s/^(\:+)/$1 /);
+	$suc += ($line =~ s/(\:+)$/ $1/);
+	if($Split_On_Semicolon >= 2){
+	    ## keep 5:4 as one token
+	    $suc += ($line =~ s/(\D)(\:+)/$1 $2 /g);
+	    $suc += ($line =~ s/(\:+)(\D)/ $1 $2/g);
+	}else{
+	    $suc += ($line =~ s/(\:+)/ $1 /g);	
+	}
+
+	if($suc){
+	    return proc_line($line);
+	}
+    }
+
+    ###  deal with hyphen: 1992-1993. 21st-24th
+    if(($line =~ /\-/) && ($Split_On_Dash > 0)){
+	my $suc = ($line =~ s/(\-{2,})/ $1 /g);
+	if($Split_On_Dash >= 2){
+	    ## keep 1992-1993 as one token
+	    $suc += ($line =~ s/(\D)(\-+)/$1 $2 /g);
+	    $suc += ($line =~ s/(\-+)(\D)/ $1 $2/g);
+	}else{
+	    ### always split on "-"
+	    $suc += ($line =~ s/([\-]+)/ $1 /g);
+	}
+
+	if($suc){
+	    return proc_line($line);
+	}
+    }
+
+    ## deal with "_"
+    if(($line =~ /\_/) && ($Split_On_Underscore > 0)){
+	### always split on "-"
+	if($line =~ s/([\_]+)/ $1 /g){
+	    return proc_line($line);
+	}
+    }
+
+
+
+    ## deal with "%"
+    if(($line =~ /\%/) && ($Split_On_PercentSign > 0)){
+	my $suc = 0;
+	if($Split_On_PercentSign >= 2){
+	    $suc += ($line =~ s/(\D)(\%+)/$1 $2/g);
+	}else{
+	    $suc += ($line =~ s/(\%+)/ $1 /g);
+	}
+
+	if($suc){
+	    return proc_line($line);
+	}
+    }
+	
+
+    ###  deal with "/": 4/5
+    if(($line =~ /\//) && ($Split_On_Slash > 0)){
+	my $suc = 0;
+	if($Split_On_Slash >= 2){
+	    $suc += ($line =~ s/(\D)(\/+)/$1 $2 /g);
+	    $suc += ($line =~ s/(\/+)(\D)/ $1 $2/g);
+	}else{
+	    $suc += ($line =~ s/(\/+)/ $1 /g);
+	}
+
+	if($suc){
+	    return proc_line($line);
+	}
+    }
+
+
+    ### deal with comma: 123,456
+    if($line =~ /\,/){
+	my $suc = 0;
+	$suc += ($line =~ s/([^\d]),/$1 , /g);     ## xxx, 1923 => xxx , 1923
+	$suc += ($line =~ s/\,\s*([^\d])/ , $1/g); ## 1923, xxx => 1923 , xxx
+
+	$suc += ($line =~ s/,([\d]{1,2}[^\d])/ , $1/g);  ## 1,23 => 1 , 23
+	$suc += ($line =~ s/,([\d]{4,}[^\d])/ , $1/g);  ## 1,2345 => 1 , 2345
+
+	$suc += ($line =~ s/,([\d]{1,2})$/ , $1/g);  ## 1,23 => 1 , 23
+	$suc += ($line =~ s/,([\d]{4,})$/ , $1/g);  ## 1,2345 => 1 , 2345
+
+	if($suc){
+	    return proc_line($line);
+	}
+    }
+    
+
+    ##  deal with "&"
+    if(($line =~ /\&/) && ($Split_On_AndSign > 0)){
+	my $suc = 0;
+	if($Split_On_AndSign >= 2){
+	    $suc += ($line =~ s/([a-z]{3,})(\&+)/$1 $2 /gi);
+	    $suc += ($line =~ s/(\&+)([a-z]{3,})/ $1 $2/gi);
+	}else{
+	    $suc += ($line =~ s/(\&+)/ $1 /g);
+	}
+
+	if($suc){
+	    return proc_line($line);
+	}
+    }
+	
+    ## deal with period
+    if($line =~ /\./){
+	if($line =~ /^(([\+|\-])*(\d+\,)*\d*\.\d+\%*)$/){
+	    ### numbers: 3.5
+	    return $line;
+	}
+
+	if($line =~ /^(([a-z]\.)+)(\.*)$/i){
+	    ## I.B.M.
+	    my $t1 = $1;
+	    my $t3 = $3;
+	    return $t1 . " ". proc_token($t3);
+	}
+
+	## Feb.. => Feb. .
+	if($line =~ /^(.*[^\.])(\.)(\.*)$/){
+	    my $p1 = $1;
+	    my $p2 = $2;
+	    my $p3 = $3;
+	    
+	    my $p1_lc = $p1;
+	    $p1_lc =~ tr/A-Z/a-z/;
+
+	    if(defined($dict_hash{$p1_lc . $p2})){
+		## Dec.. => Dec. .
+		return $p1 . $p2 . " " . proc_token($p3);
+	    }elsif(defined($dict_hash{$p1_lc})){
+		return $p1 . " " . proc_token($p2 . $p3);
+	    }else{
+		## this. => this .
+		return proc_token($p1) . " " . proc_token($p2 . $p3);
+	    }
+	}
+
+	if($line =~ s/(\.+)(.+)/$1 $2/g){
+	    return proc_line($line);
+	}
+    }
+
+
+    ## no pattern applies
+    return $line;
+}
+
+
+
+
+
+
+		   
+
diff --git a/corpus/support/utf8-normalize.sh b/corpus/support/utf8-normalize.sh
new file mode 100755
index 00000000..2f347854
--- /dev/null
+++ b/corpus/support/utf8-normalize.sh
@@ -0,0 +1,36 @@
+#!/bin/bash
+
+# this is the location on malbec, if you want to run on another machine
+# ICU may be installed in /usr or /usr/local
+ICU_DIR=/usr0/tools/icu
+UCONV_BIN=$ICU_DIR/bin/uconv
+UCONV_LIB=$ICU_DIR/lib
+
+if [ -e $UCONV_BIN ] && [ -d $UCONV_LIB ]
+then
+  export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$UCONV_LIB
+  if [ ! -x $UCONV_BIN ]
+  then
+    echo "$0: Cannot execute $UCONV_BIN! Please fix." 1>&2
+    exit
+  fi
+  CMD="$UCONV_BIN -f utf8 -t utf8 -x Any-NFKC --callback skip"
+else
+  if which uconv > /dev/null
+  then
+    CMD="uconv -f utf8 -t utf8 -x Any-NFKC --callback skip"
+  else
+    echo "$0: Cannot find ICU uconv (http://site.icu-project.org/) ... falling back to iconv. Quality may suffer." 1>&2
+    CMD="iconv -f utf8 -t utf8 -c"
+  fi
+fi
+
+perl -e 'while(<>){s/\r\n*/\n/g; print;}' | $CMD | /usr/bin/perl -w -e '
+ while (<>) {
+     chomp;
+      s/[\x00-\x1F]+/ /g;
+      s/  +/ /g;
+      s/^ //;
+      s/ $//;
+      print "$_\n";
+    }'