1#!perl 2# 3# This auxiliary script makes five header files 4# used for building XSUB of Unicode::Collate. 5# 6# Usage: 7# <do 'mkheader'> in perl, or <perl mkheader> in command line 8# 9# Input file: 10# Collate/allkeys.txt 11# 12# Output file: 13# ucatbl.h 14# 15use 5.006; 16use strict; 17use warnings; 18use Carp; 19use File::Spec; 20 21BEGIN { 22 unless ("A" eq pack('U', 0x41)) { 23 die "Unicode::Collate cannot stringify a Unicode code point\n"; 24 } 25 unless (0x41 == unpack('U', 'A')) { 26 die "Unicode::Collate cannot get a Unicode code point\n"; 27 } 28} 29 30use constant TRUE => 1; 31use constant FALSE => ""; 32use constant VCE_TEMPLATE => 'Cn4'; 33 34sub _getHexArray { map hex, $_[0] =~ /([0-9a-fA-F]+)/g } 35 36our $PACKAGE = 'Unicode::Collate, mkheader'; 37our $prefix = "UCA_"; 38 39our %SimpleEntries; # $codepoint => $keys 40our @Rest; 41 42{ 43 my($f, $fh); 44 foreach my $d (File::Spec->curdir()) { 45 $f = File::Spec->catfile($d, "Collate", "allkeys.txt"); 46 last if open($fh, $f); 47 $f = undef; 48 } 49 croak "$PACKAGE: Collate/allkeys.txt is not found" if !defined $f; 50 51 while (my $line = <$fh>) { 52 next if $line =~ /^\s*#/; 53 if ($line =~ /^\s*\@/) { 54 push @Rest, $line; 55 next; 56 } 57 58 next if $line !~ /^\s*[0-9A-Fa-f]/; 59 60 $line =~ s/[#%]\s*(.*)//; # removing comment (not getting the name) 61 62 # gets element 63 my($e, $k) = split /;/, $line; 64 65 croak "Wrong Entry: <charList> must be separated by ';' ". 66 "from <collElement>" if ! $k; 67 68 my @uv = _getHexArray($e); 69 next if !@uv; 70 71 if (@uv != 1) { 72 push @Rest, $line; 73 next; 74 } 75 76 my $is_L3_ignorable = TRUE; 77 78 my @key; 79 foreach my $arr ($k =~ /\[([^\[\]]+)\]/g) { # SPACEs allowed 80 my $var = $arr =~ /\*/; # exactly /^\*/ but be lenient. 81 my @wt = _getHexArray($arr); 82 push @key, pack(VCE_TEMPLATE, $var, @wt); 83 $is_L3_ignorable = FALSE 84 if $wt[0] || $wt[1] || $wt[2]; 85 # Conformance Test for 3.1.1 and 4.0.0 shows Level 3 ignorable 86 # is completely ignorable. 87 # For expansion, an entry $is_L3_ignorable 88 # if and only if "all" CEs are [.0000.0000.0000]. 89 } 90 my $mapping = $is_L3_ignorable ? [] : \@key; 91 my $num = @$mapping; 92 my $str = chr($num).join('', @$mapping); 93 $SimpleEntries{$uv[0]} = stringify($str); 94 } 95} 96 97sub stringify { 98 my $str = shift; 99 return sprintf '"%s"', join '', 100 map sprintf("\\x%02x", ord $_), split //, $str; 101 102} 103 104########## writing header files ########## 105 106my $init = ''; 107{ 108 my $type = "char*"; 109 my $head = $prefix."rest"; 110 111 $init .= "static $type $head [] = {\n"; 112 for my $line (@Rest) { 113 $line =~ s/\s*\z//; 114 next if $line eq ''; 115 $init .= "/*$line*/\n" if $line =~ /^[A-Za-z0-9_.:;@\ \[\]]+\z/; 116 $init .= "($type)".stringify($line).",\n"; 117 } 118 $init .= "NULL\n"; # sentinel 119 $init .= "};\n\n"; 120} 121 122my @tripletable = ( 123 { 124 file => "ucatbl", 125 name => "simple", 126 type => "char*", 127 hash => \%SimpleEntries, 128 null => "NULL", 129 init => $init, 130 }, 131); 132 133foreach my $tbl (@tripletable) { 134 my $file = "$tbl->{file}.h"; 135 my $head = "${prefix}$tbl->{name}"; 136 my $type = $tbl->{type}; 137 my $hash = $tbl->{hash}; 138 my $null = $tbl->{null}; 139 my $init = $tbl->{init}; 140 141 open my $fh_h, ">$file" or croak "$PACKAGE: $file can't be made"; 142 binmode $fh_h; select $fh_h; 143 my %val; 144 145 print << 'EOF'; 146/* 147 * This file is auto-generated by mkheader. 148 * Any changes here will be lost! 149 */ 150EOF 151 152 print $init if defined $init; 153 154 foreach my $uv (keys %$hash) { 155 croak sprintf("a Unicode code point 0x%04X over 0x10FFFF.", $uv) 156 unless $uv <= 0x10FFFF; 157 my @c = unpack 'CCCC', pack 'N', $uv; 158 $val{ $c[1] }{ $c[2] }{ $c[3] } = $hash->{$uv}; 159 } 160 161 foreach my $p (sort { $a <=> $b } keys %val) { 162 next if ! $val{ $p }; 163 for (my $r = 0; $r < 256; $r++) { 164 next if ! $val{ $p }{ $r }; 165 printf "static $type ${head}_%02x_%02x [256] = {\n", $p, $r; 166 for (my $c = 0; $c < 256; $c++) { 167 print "\t", defined $val{$p}{$r}{$c} 168 ? "($type)".$val{$p}{$r}{$c} 169 : $null; 170 print ',' if $c != 255; 171 print "\n" if $c % 8 == 7; 172 } 173 print "};\n\n"; 174 } 175 } 176 foreach my $p (sort { $a <=> $b } keys %val) { 177 next if ! $val{ $p }; 178 printf "static $type* ${head}_%02x [256] = {\n", $p; 179 for (my $r = 0; $r < 256; $r++) { 180 print $val{ $p }{ $r } 181 ? sprintf("${head}_%02x_%02x", $p, $r) 182 : "NULL"; 183 print ',' if $r != 255; 184 print "\n" if $val{ $p }{ $r } || ($r+1) % 8 == 0; 185 } 186 print "};\n\n"; 187 } 188 print "static $type** $head [] = {\n"; 189 for (my $p = 0; $p <= 0x10; $p++) { 190 print $val{ $p } ? sprintf("${head}_%02x", $p) : "NULL"; 191 print ',' if $p != 0x10; 192 print "\n"; 193 } 194 print "};\n\n"; 195 close $fh_h; 196} 197 1981; 199__END__ 200