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/se3-unattended/var/se3/unattended/install/linuxaux/opt/perl/lib/5.10.0/unicore/ -> mktables (source)

   1  ## !!!!!!!!!!!!!!       IF YOU MODIFY THIS FILE       !!!!!!!!!!!!!!!!!!!!!!!!!
   2  ## Any files created or read by this program should be listed in 'mktables.lst'
   3  
   4  #!/usr/bin/perl -w
   5  require 5.008;    # Needs pack "U". Probably safest to run on 5.8.x
   6  use strict;
   7  use Carp;
   8  use File::Spec;
   9  
  10  ##
  11  ## mktables -- create the runtime Perl Unicode files (lib/unicore/**/*.pl)
  12  ## from the Unicode database files (lib/unicore/*.txt).
  13  ##
  14  
  15  ## "Fuzzy" means this section in Unicode TR18:
  16  ##
  17  ##    The recommended names for UCD properties and property values are in
  18  ##    PropertyAliases.txt [Prop] and PropertyValueAliases.txt
  19  ##    [PropValue]. There are both abbreviated names and longer, more
  20  ##    descriptive names. It is strongly recommended that both names be
  21  ##    recognized, and that loose matching of property names be used,
  22  ##    whereby the case distinctions, whitespace, hyphens, and underbar
  23  ##    are ignored.
  24  
  25  ## Base names already used in lib/gc_sc (for avoiding 8.3 conflicts)
  26  my %BaseNames;
  27  
  28  ##
  29  ## Process any args.
  30  ##
  31  my $Verbose        = 0;
  32  my $MakeTestScript = 0;
  33  my $AlwaysWrite    = 0;
  34  my $UseDir         = "";
  35  my $FileList       = "$0.lst";
  36  my $MakeList       = 0;
  37  
  38  while (@ARGV)
  39  {
  40      my $arg = shift @ARGV;
  41      if ($arg eq '-v') {
  42          $Verbose = 1;
  43      } elsif ($arg eq '-q') {
  44          $Verbose = 0;
  45      } elsif ($arg eq '-w') {
  46          $AlwaysWrite = 1;    # update the files even if they havent changed
  47          $FileList = "";
  48      } elsif ($arg eq '-check') {
  49          my $this = shift @ARGV;
  50          my $ok = shift @ARGV;
  51          if ($this ne $ok) {
  52              print "Skipping as check params are not the same.\n";
  53              exit(0);
  54          }
  55      } elsif ($arg eq '-maketest') {
  56          $MakeTestScript = 1;
  57      } elsif ($arg eq '-makelist') {
  58          $MakeList = 1;        
  59      } elsif ($arg eq '-C' && defined ($UseDir = shift)) {
  60      -d $UseDir or die "Unknown directory '$UseDir'";
  61      } elsif ($arg eq '-L' && defined ($FileList = shift)) {
  62          -e $FileList or die "Filelist '$FileList' doesn't appear to exist!";
  63      } else {
  64          die "usage: $0 [-v|-q|-w|-C dir|-L filelist] [-maketest] [-makelist]\n",
  65              "  -v          : Verbose Mode\n",
  66              "  -q          : Quiet Mode\n",
  67              "  -w          : Write files regardless\n",
  68              "  -maketest   : Make test script\n",
  69              "  -makelist   : Rewrite the file list based on current setup\n",
  70              "  -L filelist : Use this file list, (defaults to $0)\n",
  71              "  -C dir      : Change to this directory before proceeding\n",
  72              "  -check A B  : Executes only if A and B are the same\n";   
  73      }
  74  }
  75  
  76  if ($FileList) {
  77      print "Reading file list '$FileList'\n"
  78          if $Verbose;
  79      open my $fh,"<",$FileList or die "Failed to read '$FileList':$!";
  80      my @input;
  81      my @output;
  82      for my $list ( \@input, \@output ) {
  83          while (<$fh>) {
  84              s/^ \s+ | \s+ $//xg;
  85              next if /^ \s* (?: \# .* )? $/x;
  86              last if /^ =+ $/x;
  87              my ( $file ) = split /\t/, $_;
  88              push @$list, $file;
  89          }
  90          my %dupe;
  91          @$list = grep !$dupe{ $_ }++, @$list;
  92      }
  93      close $fh;
  94      die "No input or output files in '$FileList'!"
  95          if !@input or !@output;
  96      if ( $MakeList ) {
  97          foreach my $file (@output) {
  98              unlink $file;
  99          }
 100      }            
 101      if ( $Verbose ) {
 102          print "Expecting ".scalar( @input )." input files. ",
 103                "Checking ".scalar( @output )." output files.\n";
 104      }
 105      # we set maxtime to be the youngest input file, including $0 itself.
 106      my $maxtime = -M $0; # do this before the chdir!
 107      if ($UseDir) {
 108          chdir $UseDir or die "Failed to chdir to '$UseDir':$!";
 109      }
 110      foreach my $in (@input) {
 111          my $time = -M $in;
 112          die "Missing input file '$in'" unless defined $time;
 113          $maxtime = $time if $maxtime < $time;
 114      }
 115  
 116      # now we check to see if any output files are older than maxtime, if
 117      # they are we need to continue on, otherwise we can presumably bail.
 118      my $ok = 1;
 119      foreach my $out (@output) {
 120          if ( ! -e $out ) {
 121              print "'$out' is missing.\n"
 122                  if $Verbose;
 123              $ok = 0;
 124              last;
 125          }
 126          if ( -M $out > $maxtime ) {
 127              print "'$out' is too old.\n"
 128                  if $Verbose;
 129              $ok = 0;
 130              last;
 131          }
 132      }
 133      if ($ok) {
 134          print "Files seem to be ok, not bothering to rebuild.\n";
 135          exit(0);
 136      }
 137      print "Must rebuild tables.\n"
 138          if $Verbose;
 139  } else {
 140      if ($Verbose) {
 141          print "Not checking filelist.\n";
 142      }
 143      if ($UseDir) {
 144          chdir $UseDir or die "Failed to chdir to '$UseDir':$!";
 145      }
 146  }
 147  
 148  foreach my $lib ('To', 'lib',
 149           map {File::Spec->catdir("lib",$_)}
 150           qw(gc_sc dt bc hst ea jt lb nt ccc)) {
 151    next if -d $lib;
 152    mkdir $lib, 0755 or die "mkdir '$lib': $!";
 153  }
 154  
 155  my $LastUnicodeCodepoint = 0x10FFFF; # As of Unicode 3.1.1.
 156  
 157  my $HEADER=<<"EOF";
 158  # !!!!!!!   DO NOT EDIT THIS FILE   !!!!!!! 
 159  # This file is built by $0 from e.g. UnicodeData.txt.
 160  # Any changes made here will be lost!
 161  
 162  EOF
 163  
 164  sub force_unlink {
 165      my $filename = shift;
 166      return unless -e $filename;
 167      return if CORE::unlink($filename);
 168      # We might need write permission
 169      chmod 0777, $filename;
 170      CORE::unlink($filename) or die "Couldn't unlink $filename: $!\n";
 171  }
 172  
 173  ##
 174  ## Given a filename and a reference to an array of lines,
 175  ## write the lines to the file only if the contents have not changed.
 176  ## Filename can be given as an arrayref of directory names
 177  ##
 178  sub WriteIfChanged($\@)
 179  {
 180      my $file  = shift;
 181      my $lines = shift;
 182  
 183      $file = File::Spec->catfile(@$file) if ref $file;
 184  
 185      my $TextToWrite = join '', @$lines;
 186      if (open IN, $file) {
 187          local($/) = undef;
 188          my $PreviousText = <IN>;
 189          close IN;
 190          if ($PreviousText eq $TextToWrite) {
 191              print "$file unchanged.\n" if $Verbose;
 192              return unless $AlwaysWrite;
 193          }
 194      }
 195      force_unlink ($file);
 196      if (not open OUT, ">$file") {
 197          die "$0: can't open $file for output: $!\n";
 198      }
 199      print "$file written.\n" if $Verbose;
 200  
 201      print OUT $TextToWrite;
 202      close OUT;
 203  }
 204  
 205  ##
 206  ## The main datastructure (a "Table") represents a set of code points that
 207  ## are part of a particular quality (that are part of \pL, \p{InGreek},
 208  ## etc.). They are kept as ranges of code points (starting and ending of
 209  ## each range).
 210  ##
 211  ## For example, a range ASCII LETTERS would be represented as:
 212  ##   [ [ 0x41 => 0x5A, 'UPPER' ],
 213  ##     [ 0x61 => 0x7A, 'LOWER, ] ]
 214  ##
 215  sub RANGE_START() { 0 } ## index into range element
 216  sub RANGE_END()   { 1 } ## index into range element
 217  sub RANGE_NAME()  { 2 } ## index into range element
 218  
 219  ## Conceptually, these should really be folded into the 'Table' objects
 220  my %TableInfo;
 221  my %TableDesc;
 222  my %FuzzyNames;
 223  my %AliasInfo;
 224  my %CanonicalToOrig;
 225  
 226  ##
 227  ## Turn something like
 228  ##    OLD-ITALIC
 229  ## into
 230  ##    OldItalic
 231  ##
 232  sub CanonicalName($)
 233  {
 234      my $orig = shift;
 235      my $name = lc $orig;
 236      $name =~ s/(?<![a-z])(\w)/\u$1/g;
 237      $name =~ s/[-_\s]+//g;
 238  
 239      $CanonicalToOrig{$name} = $orig if not $CanonicalToOrig{$name};
 240      return $name;
 241  }
 242  
 243  
 244  ##
 245  ## Store the alias definitions for later use.
 246  ##
 247  my %PropertyAlias;
 248  my %PropValueAlias;
 249  
 250  my %PA_reverse;
 251  my %PVA_reverse;
 252  
 253  sub Build_Aliases()
 254  {
 255      ##
 256      ## Most of the work with aliases doesn't occur here,
 257      ## but rather in utf8_heavy.pl, which uses PVA.pl,
 258  
 259      # Placate the warnings about used only once. (They are used again, but
 260      # via a typeglob lookup)
 261      %utf8::PropertyAlias = ();
 262      %utf8::PA_reverse = ();
 263      %utf8::PropValueAlias = ();
 264      %utf8::PVA_reverse = ();
 265      %utf8::PVA_abbr_map = ();
 266  
 267      open PA, "< PropertyAliases.txt"
 268      or confess "Can't open PropertyAliases.txt: $!";
 269      while (<PA>) {
 270      s/#.*//;
 271      s/\s+$//;
 272      next if /^$/;
 273  
 274      my ($abbrev, $name) = split /\s*;\s*/;
 275          next if $abbrev eq "n/a";
 276      $PropertyAlias{$abbrev} = $name;
 277          $PA_reverse{$name} = $abbrev;
 278  
 279      # The %utf8::... versions use japhy's code originally from utf8_pva.pl
 280      # However, it's moved here so that we build the tables at runtime.
 281      tr/ _-//d for $abbrev, $name;
 282      $utf8::PropertyAlias{lc $abbrev} = $name;
 283      $utf8::PA_reverse{lc $name} = $abbrev;
 284      }
 285      close PA;
 286  
 287      open PVA, "< PropValueAliases.txt"
 288      or confess "Can't open PropValueAliases.txt: $!";
 289      while (<PVA>) {
 290      s/#.*//;
 291      s/\s+$//;
 292      next if /^$/;
 293  
 294      my ($prop, @data) = split /\s*;\s*/;
 295  
 296      if ($prop eq 'ccc') {
 297          $PropValueAlias{$prop}{$data[1]} = [ @data[0,2] ];
 298          $PVA_reverse{$prop}{$data[2]} = [ @data[0,1] ];
 299      }
 300      else {
 301              next if $data[0] eq "n/a";
 302          $PropValueAlias{$prop}{$data[0]} = $data[1];
 303              $PVA_reverse{$prop}{$data[1]} = $data[0];
 304      }
 305  
 306      shift @data if $prop eq 'ccc';
 307      next if $data[0] eq "n/a";
 308  
 309      $data[1] =~ tr/ _-//d;
 310      $utf8::PropValueAlias{$prop}{lc $data[0]} = $data[1];
 311      $utf8::PVA_reverse{$prop}{lc $data[1]} = $data[0];
 312  
 313      my $abbr_class = ($prop eq 'gc' or $prop eq 'sc') ? 'gc_sc' : $prop;
 314      $utf8::PVA_abbr_map{$abbr_class}{lc $data[0]} = $data[0];
 315      }
 316      close PVA;
 317  
 318      # backwards compatibility for L& -> LC
 319      $utf8::PropValueAlias{gc}{'l&'} = $utf8::PropValueAlias{gc}{lc};
 320      $utf8::PVA_abbr_map{gc_sc}{'l&'} = $utf8::PVA_abbr_map{gc_sc}{lc};
 321  
 322  }
 323  
 324  
 325  ##
 326  ## Associates a property ("Greek", "Lu", "Assigned",...) with a Table.
 327  ##
 328  ## Called like:
 329  ##       New_Prop(In => 'Greek', $Table, Desc => 'Greek Block', Fuzzy => 1);
 330  ##
 331  ## Normally, these parameters are set when the Table is created (when the
 332  ## Table->New constructor is called), but there are times when it needs to
 333  ## be done after-the-fact...)
 334  ##
 335  sub New_Prop($$$@)
 336  {
 337      my $Type = shift; ## "Is" or "In";
 338      my $Name = shift;
 339      my $Table = shift;
 340  
 341      ## remaining args are optional key/val
 342      my %Args = @_;
 343  
 344      my $Fuzzy = delete $Args{Fuzzy};
 345      my $Desc  = delete $Args{Desc}; # description
 346  
 347      $Name = CanonicalName($Name) if $Fuzzy;
 348  
 349      ## sanity check a few args
 350      if (%Args or ($Type ne 'Is' and $Type ne 'In') or not ref $Table) {
 351          confess "$0: bad args to New_Prop"
 352      }
 353  
 354      if (not $TableInfo{$Type}->{$Name})
 355      {
 356          $TableInfo{$Type}->{$Name} = $Table;
 357          $TableDesc{$Type}->{$Name} = $Desc;
 358          if ($Fuzzy) {
 359              $FuzzyNames{$Type}->{$Name} = $Name;
 360          }
 361      }
 362  }
 363  
 364  
 365  ##
 366  ## Creates a new Table object.
 367  ##
 368  ## Args are key/value pairs:
 369  ##    In => Name         -- Name of "In" property to be associated with
 370  ##    Is => Name         -- Name of "Is" property to be associated with
 371  ##    Fuzzy => Boolean   -- True if name can be accessed "fuzzily"
 372  ##    Desc  => String    -- Description of the property
 373  ##
 374  ## No args are required.
 375  ##
 376  sub Table::New
 377  {
 378      my $class = shift;
 379      my %Args = @_;
 380  
 381      my $Table = bless [], $class;
 382  
 383      my $Fuzzy = delete $Args{Fuzzy};
 384      my $Desc  = delete $Args{Desc};
 385  
 386      for my $Type ('Is', 'In')
 387      {
 388          if (my $Name = delete $Args{$Type}) {
 389              New_Prop($Type => $Name, $Table, Desc => $Desc, Fuzzy => $Fuzzy);
 390          }
 391      }
 392  
 393      ## shouldn't have any left over
 394      if (%Args) {
 395          confess "$0: bad args to Table->New"
 396      }
 397  
 398      return $Table;
 399  }
 400  
 401  
 402  ##
 403  ## Returns the maximum code point currently in the table.
 404  ##
 405  sub Table::Max
 406  {
 407      my $last = $_[0]->[-1];      ## last code point
 408      confess "oops" unless $last; ## must have code points to have a max
 409      return $last->[RANGE_END];
 410  }
 411  
 412  ##
 413  ## Replaces the codepoints in the Table with those in the Table given
 414  ## as an arg. (NOTE: this is not a "deep copy").
 415  ##
 416  sub Table::Replace($$)
 417  {
 418      my $Table = shift; #self
 419      my $New   = shift;
 420  
 421      @$Table = @$New;
 422  }
 423  
 424  ##
 425  ## Given a new code point, make the last range of the Table extend to
 426  ## include the new (and all intervening) code points.
 427  ##
 428  ## Takes the time to make sure that the extension is valid.
 429  ##
 430  sub Table::Extend
 431  {
 432      my $Table = shift; #self
 433      my $codepoint = shift;
 434  
 435      my $PrevMax = $Table->Max;
 436  
 437      confess "oops ($codepoint <= $PrevMax)" if $codepoint <= $PrevMax;
 438  
 439      $Table->ExtendNoCheck($codepoint);
 440  }
 441  
 442  
 443  ##
 444  ## Given a new code point, make the last range of the Table extend to
 445  ## include the new (and all intervening) code points.
 446  ##
 447  ## Does NOT check that the extension is valid.  Assumes that the caller
 448  ## has already made this check.
 449  ##
 450  sub Table::ExtendNoCheck
 451  {
 452      ## Optmized adding: Assumes $Table and $codepoint as parms
 453      $_[0]->[-1]->[RANGE_END] = $_[1];
 454  }
 455  
 456  ##
 457  ## Given a code point range start and end (and optional name), blindly
 458  ## append them to the list of ranges for the Table.
 459  ##
 460  ## NOTE: Code points must be added in strictly ascending numeric order.
 461  ##
 462  sub Table::RawAppendRange
 463  {
 464      my $Table = shift; #self
 465      my $start = shift;
 466      my $end   = shift;
 467      my $name  = shift;
 468      $name = "" if not defined $name; ## warning: $name can be "0"
 469  
 470      push @$Table, [ $start,    # RANGE_START
 471                      $end,      # RANGE_END
 472                      $name   ]; # RANGE_NAME
 473  }
 474  
 475  ##
 476  ## Given a code point (and optional name), add it to the Table.
 477  ##
 478  ## NOTE: Code points must be added in strictly ascending numeric order.
 479  ##
 480  sub Table::Append
 481  {
 482      my $Table     = shift; #self
 483      my $codepoint = shift;
 484      my $name      = shift;
 485      $name = "" if not defined $name; ## warning: $name can be "0"
 486  
 487      ##
 488      ## If we've already got a range working, and this code point is the next
 489      ## one in line, and if the name is the same, just extend the current range.
 490      ##
 491      my $last = $Table->[-1];
 492      if ($last
 493          and
 494          $last->[RANGE_END] == $codepoint - 1
 495          and
 496          $last->[RANGE_NAME] eq $name)
 497      {
 498          $Table->ExtendNoCheck($codepoint);
 499      }
 500      else
 501      {
 502          $Table->RawAppendRange($codepoint, $codepoint, $name);
 503      }
 504  }
 505  
 506  ##
 507  ## Given a code point range starting value and ending value (and name),
 508  ## Add the range to teh Table.
 509  ##
 510  ## NOTE: Code points must be added in strictly ascending numeric order.
 511  ##
 512  sub Table::AppendRange
 513  {
 514      my $Table = shift; #self
 515      my $start = shift;
 516      my $end   = shift;
 517      my $name  = shift;
 518      $name = "" if not defined $name; ## warning: $name can be "0"
 519  
 520      $Table->Append($start, $name);
 521      $Table->Extend($end) if $end > $start;
 522  }
 523  
 524  ##
 525  ## Return a new Table that represents all code points not in the Table.
 526  ##
 527  sub Table::Invert
 528  {
 529      my $Table = shift; #self
 530  
 531      my $New = Table->New();
 532      my $max = -1;
 533      for my $range (@$Table)
 534      {
 535          my $start = $range->[RANGE_START];
 536          my $end   = $range->[RANGE_END];
 537          if ($start-1 >= $max+1) {
 538              $New->AppendRange($max+1, $start-1, "");
 539          }
 540          $max = $end;
 541      }
 542      if ($max+1 < $LastUnicodeCodepoint) {
 543          $New->AppendRange($max+1, $LastUnicodeCodepoint);
 544      }
 545      return $New;
 546  }
 547  
 548  ##
 549  ## Merges any number of other tables with $self, returning the new table.
 550  ## (existing tables are not modified)
 551  ##
 552  ##
 553  ## Args may be Tables, or individual code points (as integers).
 554  ##
 555  ## Can be called as either a constructor or a method.
 556  ##
 557  sub Table::Merge
 558  {
 559      shift(@_) if not ref $_[0]; ## if called as a constructor, lose the class
 560      my @Tables = @_;
 561  
 562      ## Accumulate all records from all tables
 563      my @Records;
 564      for my $Arg (@Tables)
 565      {
 566          if (ref $Arg) {
 567              ## arg is a table -- get its ranges
 568              push @Records, @$Arg;
 569          } else {
 570              ## arg is a codepoint, make a range
 571              push @Records, [ $Arg, $Arg ]
 572          }
 573      }
 574  
 575      ## sort by range start, with longer ranges coming first.
 576      my ($first, @Rest) = sort {
 577          ($a->[RANGE_START] <=> $b->[RANGE_START])
 578            or
 579          ($b->[RANGE_END]   <=> $b->[RANGE_END])
 580      } @Records;
 581  
 582      my $New = Table->New();
 583  
 584      ## Ensuring the first range is there makes the subsequent loop easier
 585      $New->AppendRange($first->[RANGE_START],
 586                        $first->[RANGE_END]);
 587  
 588      ## Fold in records so long as they add new information.
 589      for my $set (@Rest)
 590      {
 591          my $start = $set->[RANGE_START];
 592          my $end   = $set->[RANGE_END];
 593          if ($start > $New->Max) {
 594              $New->AppendRange($start, $end);
 595          } elsif ($end > $New->Max) {
 596              $New->ExtendNoCheck($end);
 597          }
 598      }
 599  
 600      return $New;
 601  }
 602  
 603  ##
 604  ## Given a filename, write a representation of the Table to a file.
 605  ## May have an optional comment as a 2nd arg.
 606  ## Filename may actually be an arrayref of directories
 607  ##
 608  sub Table::Write
 609  {
 610      my $Table    = shift; #self
 611      my $filename = shift;
 612      my $comment  = shift;
 613  
 614      my @OUT = $HEADER;
 615      if (defined $comment) {
 616          $comment =~ s/\s+\Z//;
 617          $comment =~ s/^/# /gm;
 618          push @OUT, "#\n$comment\n#\n";
 619      }
 620      push @OUT, "return <<'END';\n";
 621  
 622      for my $set (@$Table)
 623      {
 624          my $start = $set->[RANGE_START];
 625          my $end   = $set->[RANGE_END];
 626          my $name  = $set->[RANGE_NAME];
 627  
 628          if ($start == $end) {
 629              push @OUT, sprintf "%04X\t\t%s\n", $start, $name;
 630          } else {
 631              push @OUT, sprintf "%04X\t%04X\t%s\n", $start, $end, $name;
 632          }
 633      }
 634  
 635      push @OUT, "END\n";
 636  
 637      WriteIfChanged($filename, @OUT);
 638  }
 639  
 640  ## This used only for making the test script.
 641  ## helper function
 642  sub IsUsable($)
 643  {
 644      my $code = shift;
 645      return 0 if $code <= 0x0000;                       ## don't use null
 646      return 0 if $code >= $LastUnicodeCodepoint;        ## keep in range
 647      return 0 if ($code >= 0xD800 and $code <= 0xDFFF); ## no surrogates
 648      return 0 if ($code >= 0xFDD0 and $code <= 0xFDEF); ## utf8.c says no good
 649      return 0 if (($code & 0xFFFF) == 0xFFFE);          ## utf8.c says no good
 650      return 0 if (($code & 0xFFFF) == 0xFFFF);          ## utf8.c says no good
 651      return 1;
 652  }
 653  
 654  ## Return a code point that's part of the table.
 655  ## Returns nothing if the table is empty (or covers only surrogates).
 656  ## This used only for making the test script.
 657  sub Table::ValidCode
 658  {
 659      my $Table = shift; #self
 660      for my $set (@$Table) {
 661          return $set->[RANGE_END] if IsUsable($set->[RANGE_END]);
 662      }
 663      return ();
 664  }
 665  
 666  ## Return a code point that's not part of the table
 667  ## Returns nothing if the table covers all code points.
 668  ## This used only for making the test script.
 669  sub Table::InvalidCode
 670  {
 671      my $Table = shift; #self
 672  
 673      return 0x1234 if not @$Table;
 674  
 675      for my $set (@$Table)
 676      {
 677          if (IsUsable($set->[RANGE_END] + 1))
 678          {
 679              return $set->[RANGE_END] + 1;
 680          }
 681  
 682          if (IsUsable($set->[RANGE_START] - 1))
 683          {
 684              return $set->[RANGE_START] - 1;
 685          }
 686      }
 687      return ();
 688  }
 689  
 690  ###########################################################################
 691  ###########################################################################
 692  ###########################################################################
 693  
 694  
 695  ##
 696  ## Called like:
 697  ##     New_Alias(Is => 'All', SameAs => 'Any', Fuzzy => 1);
 698  ##
 699  ## The args must be in that order, although the Fuzzy pair may be omitted.
 700  ##
 701  ## This creates 'IsAll' as an alias for 'IsAny'
 702  ##
 703  sub New_Alias($$$@)
 704  {
 705      my $Type   = shift; ## "Is" or "In"
 706      my $Alias  = shift;
 707      my $SameAs = shift; # expecting "SameAs" -- just ignored
 708      my $Name   = shift;
 709  
 710      ## remaining args are optional key/val
 711      my %Args = @_;
 712  
 713      my $Fuzzy = delete $Args{Fuzzy};
 714  
 715      ## sanity check a few args
 716      if (%Args or ($Type ne 'Is' and $Type ne 'In') or $SameAs ne 'SameAs') {
 717          confess "$0: bad args to New_Alias"
 718      }
 719  
 720      $Alias = CanonicalName($Alias) if $Fuzzy;
 721  
 722      if (not $TableInfo{$Type}->{$Name})
 723      {
 724          my $CName = CanonicalName($Name);
 725          if ($TableInfo{$Type}->{$CName}) {
 726              confess "$0: Use canonical form '$CName' instead of '$Name' for alias.";
 727          } else {
 728              confess "$0: don't have original $Type => $Name to make alias\n";
 729          }
 730      }
 731      if ($TableInfo{$Alias}) {
 732          confess "$0: already have original $Type => $Alias; can't make alias";
 733      }
 734      $AliasInfo{$Type}->{$Name} = $Alias;
 735      if ($Fuzzy) {
 736          $FuzzyNames{$Type}->{$Alias} = $Name;
 737      }
 738  
 739  }
 740  
 741  
 742  ## All assigned code points
 743  my $Assigned = Table->New(Is    => 'Assigned',
 744                            Desc  => "All assigned code points",
 745                            Fuzzy => 0);
 746  
 747  my $Name     = Table->New(); ## all characters, individually by name
 748  my $General  = Table->New(); ## all characters, grouped by category
 749  my %General;
 750  my %Cat;
 751  
 752  ## Simple Data::Dumper alike. Good enough for our needs. We can't use the real
 753  ## thing as we have to run under miniperl
 754  sub simple_dumper {
 755      my @lines;
 756      my $item;
 757      foreach $item (@_) {
 758      if (ref $item) {
 759          if (ref $item eq 'ARRAY') {
 760          push @lines, "[\n", simple_dumper (@$item), "],\n";
 761          } elsif (ref $item eq 'HASH') {
 762          push @lines, "{\n", simple_dumper (%$item), "},\n";
 763          } else {
 764          die "Can't cope with $item";
 765          }
 766      } else {
 767          if (defined $item) {
 768          my $copy = $item;
 769          $copy =~ s/([\'\\])/\\$1/gs;
 770          push @lines, "'$copy',\n";
 771          } else {
 772          push @lines, "undef,\n";
 773          }
 774      }
 775      }
 776      @lines;
 777  }
 778  
 779  ##
 780  ## Process UnicodeData.txt (Categories, etc.)
 781  ##
 782  sub UnicodeData_Txt()
 783  {
 784      my $Bidi     = Table->New();
 785      my $Deco     = Table->New();
 786      my $Comb     = Table->New();
 787      my $Number   = Table->New();
 788      my $Mirrored = Table->New();#Is    => 'Mirrored',
 789                                #Desc  => "Mirrored in bidirectional text",
 790                                #Fuzzy => 0);
 791  
 792      my %DC;
 793      my %Bidi;
 794      my %Number;
 795      $DC{can} = Table->New();
 796      $DC{com} = Table->New();
 797  
 798      ## Initialize Perl-generated categories
 799      ## (Categories from UnicodeData.txt are auto-initialized in gencat)
 800      $Cat{Alnum}  =
 801      Table->New(Is => 'Alnum',  Desc => "[[:Alnum:]]",  Fuzzy => 0);
 802      $Cat{Alpha}  =
 803      Table->New(Is => 'Alpha',  Desc => "[[:Alpha:]]",  Fuzzy => 0);
 804      $Cat{ASCII}  =
 805      Table->New(Is => 'ASCII',  Desc => "[[:ASCII:]]",  Fuzzy => 0);
 806      $Cat{Blank}  =
 807      Table->New(Is => 'Blank',  Desc => "[[:Blank:]]",  Fuzzy => 0);
 808      $Cat{Cntrl}  =
 809      Table->New(Is => 'Cntrl',  Desc => "[[:Cntrl:]]",  Fuzzy => 0);
 810      $Cat{Digit}  =
 811      Table->New(Is => 'Digit',  Desc => "[[:Digit:]]",  Fuzzy => 0);
 812      $Cat{Graph}  =
 813      Table->New(Is => 'Graph',  Desc => "[[:Graph:]]",  Fuzzy => 0);
 814      $Cat{Lower}  =
 815      Table->New(Is => 'Lower',  Desc => "[[:Lower:]]",  Fuzzy => 0);
 816      $Cat{Print}  =
 817      Table->New(Is => 'Print',  Desc => "[[:Print:]]",  Fuzzy => 0);
 818      $Cat{Punct}  =
 819      Table->New(Is => 'Punct',  Desc => "[[:Punct:]]",  Fuzzy => 0);
 820      $Cat{Space}  =
 821      Table->New(Is => 'Space',  Desc => "[[:Space:]]",  Fuzzy => 0);
 822      $Cat{Title}  =
 823      Table->New(Is => 'Title',  Desc => "[[:Title:]]",  Fuzzy => 0);
 824      $Cat{Upper}  =
 825      Table->New(Is => 'Upper',  Desc => "[[:Upper:]]",  Fuzzy => 0);
 826      $Cat{XDigit} =
 827      Table->New(Is => 'XDigit', Desc => "[[:XDigit:]]", Fuzzy => 0);
 828      $Cat{Word}   =
 829      Table->New(Is => 'Word',   Desc => "[[:Word:]]",   Fuzzy => 0);
 830      $Cat{SpacePerl} =
 831      Table->New(Is => 'SpacePerl', Desc => '\s', Fuzzy => 0);
 832      $Cat{VertSpace} =
 833      Table->New(Is => 'VertSpace', Desc => '\v', Fuzzy => 0);
 834      $Cat{HorizSpace} =
 835      Table->New(Is => 'HorizSpace', Desc => '\h', Fuzzy => 0);
 836      my %To;
 837      $To{Upper} = Table->New();
 838      $To{Lower} = Table->New();
 839      $To{Title} = Table->New();
 840      $To{Digit} = Table->New();
 841  
 842      sub gencat($$$$)
 843      {
 844          my ($name, ## Name ("LATIN CAPITAL LETTER A")
 845              $cat,  ## Category ("Lu", "Zp", "Nd", etc.)
 846              $code, ## Code point (as an integer)
 847              $op) = @_;
 848  
 849          my $MajorCat = substr($cat, 0, 1); ## L, M, Z, S, etc
 850  
 851          $Assigned->$op($code);
 852          $Name->$op($code, $name);
 853          $General->$op($code, $cat);
 854  
 855          ## add to the sub category (e.g. "Lu", "Nd", "Cf", ..)
 856          $Cat{$cat}      ||= Table->New(Is   => $cat,
 857                                         Desc => "General Category '$cat'",
 858                                         Fuzzy => 0);
 859          $Cat{$cat}->$op($code);
 860  
 861          ## add to the major category (e.g. "L", "N", "C", ...)
 862          $Cat{$MajorCat} ||= Table->New(Is => $MajorCat,
 863                                         Desc => "Major Category '$MajorCat'",
 864                                         Fuzzy => 0);
 865          $Cat{$MajorCat}->$op($code);
 866  
 867          ($General{$name} ||= Table->New)->$op($code, $name);
 868  
 869          # 005F: SPACING UNDERSCORE
 870          $Cat{Word}->$op($code)  if $cat =~ /^[LMN]|Pc/;
 871          $Cat{Alnum}->$op($code) if $cat =~ /^[LM]|Nd/;
 872          $Cat{Alpha}->$op($code) if $cat =~ /^[LM]/;
 873  
 874      my $isspace = 
 875          ($cat =~ /Zs|Zl|Zp/ &&
 876           $code != 0x200B) # 200B is ZWSP which is for line break control
 877           # and therefore it is not part of "space" even while it is "Zs".
 878                                  || $code == 0x0009  # 0009: HORIZONTAL TAB
 879                                  || $code == 0x000A  # 000A: LINE FEED
 880                                  || $code == 0x000B  # 000B: VERTICAL TAB
 881                                  || $code == 0x000C  # 000C: FORM FEED
 882                                  || $code == 0x000D  # 000D: CARRIAGE RETURN
 883                                  || $code == 0x0085  # 0085: NEL
 884  
 885          ;
 886  
 887          $Cat{Space}->$op($code) if $isspace;
 888  
 889          $Cat{SpacePerl}->$op($code) if $isspace
 890                                     && $code != 0x000B; # Backward compat.
 891  
 892          $Cat{VertSpace}->$op($code) if grep {$code == $_} 
 893              ( 0x0A..0x0D,0x85,0x2028,0x2029 );
 894  
 895          $Cat{HorizSpace}->$op($code) if grep {$code == $_} (
 896              0x09,   0x20,   0xa0,   0x1680, 0x180e, 0x2000, 0x2001, 0x2002,
 897              0x2003, 0x2004, 0x2005, 0x2006, 0x2007, 0x2008, 0x2009, 0x200a,
 898              0x202f, 0x205f, 0x3000
 899          ); 
 900  
 901          $Cat{Blank}->$op($code) if $isspace
 902                                  && !($code == 0x000A ||
 903                       $code == 0x000B ||
 904                       $code == 0x000C ||
 905                       $code == 0x000D ||
 906                       $code == 0x0085 ||
 907                       $cat =~ /^Z[lp]/);
 908  
 909          $Cat{Digit}->$op($code) if $cat eq "Nd";
 910          $Cat{Upper}->$op($code) if $cat eq "Lu";
 911          $Cat{Lower}->$op($code) if $cat eq "Ll";
 912          $Cat{Title}->$op($code) if $cat eq "Lt";
 913          $Cat{ASCII}->$op($code) if $code <= 0x007F;
 914          $Cat{Cntrl}->$op($code) if $cat =~ /^C/;
 915      my $isgraph = !$isspace && $cat !~ /Cc|Cs|Cn/;
 916          $Cat{Graph}->$op($code) if $isgraph;
 917          $Cat{Print}->$op($code) if $isgraph || $isspace;
 918          $Cat{Punct}->$op($code) if $cat =~ /^P/;
 919  
 920          $Cat{XDigit}->$op($code) if ($code >= 0x30 && $code <= 0x39)  ## 0..9
 921                                   || ($code >= 0x41 && $code <= 0x46)  ## A..F
 922                                   || ($code >= 0x61 && $code <= 0x66); ## a..f
 923      }
 924  
 925      ## open ane read file.....
 926      if (not open IN, "UnicodeData.txt") {
 927          die "$0: UnicodeData.txt: $!\n";
 928      }
 929  
 930      ##
 931      ## For building \p{_CombAbove} and \p{_CanonDCIJ}
 932      ##
 933      my %_Above_HexCodes; ## Hexcodes for chars with $comb == 230 ("ABOVE")
 934  
 935      my %CodeToDeco;      ## Maps code to decomp. list for chars with first
 936                           ## decomp. char an "i" or "j" (for \p{_CanonDCIJ})
 937  
 938      ## This is filled in as we go....
 939      my $CombAbove = Table->New(Is   => '_CombAbove',
 940                                 Desc  => '(for internal casefolding use)',
 941                                 Fuzzy => 0);
 942  
 943      while (<IN>)
 944      {
 945          next unless /^[0-9A-Fa-f]+;/;
 946          s/\s+$//;
 947  
 948          my ($hexcode,   ## code point in hex (e.g. "0041")
 949              $name,      ## character name (e.g. "LATIN CAPITAL LETTER A")
 950              $cat,       ## category (e.g. "Lu")
 951              $comb,      ## Canonical combining class (e.t. "230")
 952              $bidi,      ## directional category (e.g. "L")
 953              $deco,      ## decomposition mapping
 954              $decimal,   ## decimal digit value
 955              $digit,     ## digit value
 956              $number,    ## numeric value
 957              $mirrored,  ## mirrored
 958              $unicode10, ## name in Unicode 1.0
 959              $comment,   ## comment field
 960              $upper,     ## uppercase mapping
 961              $lower,     ## lowercase mapping
 962              $title,     ## titlecase mapping
 963                ) = split(/\s*;\s*/);
 964  
 965      # Note that in Unicode 3.2 there will be names like
 966      # LINE FEED (LF), which probably means that \N{} needs
 967      # to cope also with LINE FEED and LF.
 968      $name = $unicode10 if $name eq '<control>' && $unicode10 ne '';
 969  
 970          my $code = hex($hexcode);
 971  
 972          if ($comb and $comb == 230) {
 973              $CombAbove->Append($code);
 974              $_Above_HexCodes{$hexcode} = 1;
 975          }
 976  
 977          ## Used in building \p{_CanonDCIJ}
 978          if ($deco and $deco =~ m/^006[9A]\b/) {
 979              $CodeToDeco{$code} = $deco;
 980          }
 981  
 982          ##
 983          ## There are a few pairs of lines like:
 984          ##   AC00;<Hangul Syllable, First>;Lo;0;L;;;;;N;;;;;
 985          ##   D7A3;<Hangul Syllable, Last>;Lo;0;L;;;;;N;;;;;
 986          ## that define ranges.
 987          ##
 988          if ($name =~ /^<(.+), (First|Last)>$/)
 989          {
 990              $name = $1;
 991              gencat($name, $cat, $code, $2 eq 'First' ? 'Append' : 'Extend');
 992              #New_Prop(In => $name, $General{$name}, Fuzzy => 1);
 993          }
 994          else
 995          {
 996              ## normal (single-character) lines
 997              gencat($name, $cat, $code, 'Append');
 998  
 999              # No Append() here since since several codes may map into one.
1000              $To{Upper}->RawAppendRange($code, $code, $upper) if $upper;
1001              $To{Lower}->RawAppendRange($code, $code, $lower) if $lower;
1002              $To{Title}->RawAppendRange($code, $code, $title) if $title;
1003              $To{Digit}->Append($code, $decimal) if length $decimal;
1004  
1005              $Bidi->Append($code, $bidi);
1006              $Comb->Append($code, $comb) if $comb;
1007              $Number->Append($code, $number) if length $number;
1008  
1009          length($decimal) and ($Number{De} ||= Table->New())->Append($code)
1010            or
1011          length($digit)   and ($Number{Di} ||= Table->New())->Append($code)
1012            or
1013          length($number)  and ($Number{Nu} ||= Table->New())->Append($code);
1014  
1015              $Mirrored->Append($code) if $mirrored eq "Y";
1016  
1017              $Bidi{$bidi} ||= Table->New();#Is    => "bt/$bidi",
1018                                          #Desc  => "Bi-directional category '$bidi'",
1019                                          #Fuzzy => 0);
1020              $Bidi{$bidi}->Append($code);
1021  
1022              if ($deco)
1023              {
1024                  $Deco->Append($code, $deco);
1025                  if ($deco =~/^<(\w+)>/)
1026                  {
1027              my $dshort = $PVA_reverse{dt}{ucfirst lc $1};
1028                      $DC{com}->Append($code);
1029  
1030                      $DC{$dshort} ||= Table->New();
1031                      $DC{$dshort}->Append($code);
1032                  }
1033                  else
1034                  {
1035                      $DC{can}->Append($code);
1036                  }
1037              }
1038          }
1039      }
1040      close IN;
1041  
1042      ##
1043      ## Tidy up a few special cases....
1044      ##
1045  
1046      $Cat{Cn} = $Assigned->Invert; ## Cn is everything that doesn't exist
1047      New_Prop(Is => 'Cn',
1048               $Cat{Cn},
1049               Desc => "General Category 'Cn' [not functional in Perl]",
1050               Fuzzy => 0);
1051  
1052      ## Unassigned is the same as 'Cn'
1053      New_Alias(Is => 'Unassigned', SameAs => 'Cn', Fuzzy => 0);
1054  
1055      $Cat{C}->Replace($Cat{C}->Merge($Cat{Cn}));  ## Now merge in Cn into C
1056  
1057  
1058      # LC is Ll, Lu, and Lt.
1059      # (used to be L& or L_, but PropValueAliases.txt defines it as LC)
1060      New_Prop(Is => 'LC',
1061               Table->Merge(@Cat{qw[Ll Lu Lt]}),
1062               Desc  => '[\p{Ll}\p{Lu}\p{Lt}]',
1063               Fuzzy => 0);
1064  
1065      ## Any and All are all code points.
1066      my $Any = Table->New(Is    => 'Any',
1067                           Desc  => sprintf("[\\x{0000}-\\x{%X}]",
1068                                            $LastUnicodeCodepoint),
1069                           Fuzzy => 0);
1070      $Any->RawAppendRange(0, $LastUnicodeCodepoint);
1071  
1072      New_Alias(Is => 'All', SameAs => 'Any', Fuzzy => 0);
1073  
1074      ##
1075      ## Build special properties for Perl's internal case-folding needs:
1076      ##    \p{_CaseIgnorable}
1077      ##    \p{_CanonDCIJ}
1078      ##    \p{_CombAbove}
1079      ## _CombAbove was built above. Others are built here....
1080      ##
1081  
1082      ## \p{_CaseIgnorable} is [\p{Mn}\0x00AD\x2010]
1083      New_Prop(Is => '_CaseIgnorable',
1084               Table->Merge($Cat{Mn},
1085                            0x00AD,    #SOFT HYPHEN
1086                            0x2010),   #HYPHEN
1087               Desc  => '(for internal casefolding use)',
1088               Fuzzy => 0);
1089  
1090  
1091      ## \p{_CanonDCIJ} is fairly complex...
1092      my $CanonCDIJ = Table->New(Is    => '_CanonDCIJ',
1093                                 Desc  => '(for internal casefolding use)',
1094                                 Fuzzy => 0);
1095      ## It contains the ASCII 'i' and 'j'....
1096      $CanonCDIJ->Append(0x0069); # ASCII ord("i")
1097      $CanonCDIJ->Append(0x006A); # ASCII ord("j")
1098      ## ...and any character with a decomposition that starts with either of
1099      ## those code points, but only if the decomposition does not have any
1100      ## combining character with the "ABOVE" canonical combining class.
1101      for my $code (sort { $a <=> $b} keys %CodeToDeco)
1102      {
1103          ## Need to ensure that all decomposition characters do not have
1104          ## a %HexCodeToComb in %AboveCombClasses.
1105          my $want = 1;
1106          for my $deco_hexcode (split / /, $CodeToDeco{$code})
1107          {
1108              if (exists $_Above_HexCodes{$deco_hexcode}) {
1109                  ## one of the decmposition chars has an ABOVE combination
1110                  ## class, so we're not interested in this one
1111                  $want = 0;
1112                  last;
1113              }
1114          }
1115          if ($want) {
1116              $CanonCDIJ->Append($code);
1117          }
1118      }
1119  
1120  
1121  
1122      ##
1123      ## Now dump the files.
1124      ##
1125      $Name->Write("Name.pl");
1126  
1127      {
1128      my @PVA = $HEADER;
1129      foreach my $name (qw (PropertyAlias PA_reverse PropValueAlias
1130                    PVA_reverse PVA_abbr_map)) {
1131          # Should I really jump through typeglob hoops just to avoid a
1132          # symbolic reference? (%{"utf8::$name})
1133          push @PVA, "\n", "\%utf8::$name = (\n",
1134          simple_dumper (%{$utf8::{$name}}), ");\n";
1135      }
1136      push @PVA, "1;\n";
1137      WriteIfChanged("PVA.pl", @PVA);
1138      }
1139  
1140      # $Bidi->Write("Bidirectional.pl");
1141      for (keys %Bidi) {
1142      $Bidi{$_}->Write(
1143          ["lib","bc","$_.pl"],
1144          "BidiClass category '$PropValueAlias{bc}{$_}'"
1145      );
1146      }
1147  
1148      $Comb->Write("CombiningClass.pl");
1149      for (keys %{ $PropValueAlias{ccc} }) {
1150      my ($code, $name) = @{ $PropValueAlias{ccc}{$_} };
1151      (my $c = Table->New())->Append($code);
1152      $c->Write(
1153          ["lib","ccc","$_.pl"],
1154          "CombiningClass category '$name'"
1155      );
1156      }
1157  
1158      $Deco->Write("Decomposition.pl");
1159      for (keys %DC) {
1160      $DC{$_}->Write(
1161          ["lib","dt","$_.pl"],
1162          "DecompositionType category '$PropValueAlias{dt}{$_}'"
1163      );
1164      }
1165  
1166      # $Number->Write("Number.pl");
1167      for (keys %Number) {
1168      $Number{$_}->Write(
1169          ["lib","nt","$_.pl"],
1170          "NumericType category '$PropValueAlias{nt}{$_}'"
1171      );
1172      }
1173  
1174      # $General->Write("Category.pl");
1175  
1176      for my $to (sort keys %To) {
1177          $To{$to}->Write(["To","$to.pl"]);
1178      }
1179  
1180      for (keys %{ $PropValueAlias{gc} }) {
1181      New_Alias(Is => $PropValueAlias{gc}{$_}, SameAs => $_, Fuzzy => 1);
1182      }
1183  }
1184  
1185  ##
1186  ## Process LineBreak.txt
1187  ##
1188  sub LineBreak_Txt()
1189  {
1190      if (not open IN, "LineBreak.txt") {
1191          die "$0: LineBreak.txt: $!\n";
1192      }
1193  
1194      my $Lbrk = Table->New();
1195      my %Lbrk;
1196  
1197      while (<IN>)
1198      {
1199          next unless /^([0-9A-Fa-f]+)(?:\.\.([0-9A-Fa-f]+))?\s*;\s*(\w+)/;
1200  
1201      my ($first, $last, $lbrk) = (hex($1), hex($2||""), $3);
1202  
1203      $Lbrk->Append($first, $lbrk);
1204  
1205          $Lbrk{$lbrk} ||= Table->New();
1206          $Lbrk{$lbrk}->Append($first);
1207  
1208      if ($last) {
1209          $Lbrk->Extend($last);
1210          $Lbrk{$lbrk}->Extend($last);
1211      }
1212      }
1213      close IN;
1214  
1215      # $Lbrk->Write("Lbrk.pl");
1216  
1217  
1218      for (keys %Lbrk) {
1219      $Lbrk{$_}->Write(
1220          ["lib","lb","$_.pl"],
1221          "Linebreak category '$PropValueAlias{lb}{$_}'"
1222      );
1223      }
1224  }
1225  
1226  ##
1227  ## Process ArabicShaping.txt.
1228  ##
1229  sub ArabicShaping_txt()
1230  {
1231      if (not open IN, "ArabicShaping.txt") {
1232          die "$0: ArabicShaping.txt: $!\n";
1233      }
1234  
1235      my $ArabLink      = Table->New();
1236      my $ArabLinkGroup = Table->New();
1237  
1238      my %JoinType;
1239  
1240      while (<IN>)
1241      {
1242      next unless /^[0-9A-Fa-f]+;/;
1243      s/\s+$//;
1244  
1245      my ($hexcode, $name, $link, $linkgroup) = split(/\s*;\s*/);
1246          my $code = hex($hexcode);
1247      $ArabLink->Append($code, $link);
1248      $ArabLinkGroup->Append($code, $linkgroup);
1249  
1250          $JoinType{$link} ||= Table->New(Is => "JoinType$link");
1251          $JoinType{$link}->Append($code);
1252      }
1253      close IN;
1254  
1255      # $ArabLink->Write("ArabLink.pl");
1256      # $ArabLinkGroup->Write("ArabLnkGrp.pl");
1257  
1258  
1259      for (keys %JoinType) {
1260      $JoinType{$_}->Write(
1261          ["lib","jt","$_.pl"],
1262          "JoiningType category '$PropValueAlias{jt}{$_}'"
1263      );
1264      }
1265  }
1266  
1267  ##
1268  ## Process EastAsianWidth.txt.
1269  ##
1270  sub EastAsianWidth_txt()
1271  {
1272      if (not open IN, "EastAsianWidth.txt") {
1273          die "$0: EastAsianWidth.txt: $!\n";
1274      }
1275  
1276      my %EAW;
1277  
1278      while (<IN>)
1279      {
1280      next unless /^[0-9A-Fa-f]+(\.\.[0-9A-Fa-f]+)?;/;
1281      s/#.*//;
1282      s/\s+$//;
1283  
1284      my ($hexcodes, $pv) = split(/\s*;\s*/);
1285          $EAW{$pv} ||= Table->New(Is => "EastAsianWidth$pv");
1286        my ($start, $end) = split(/\.\./, $hexcodes);
1287        if (defined $end) {
1288          $EAW{$pv}->AppendRange(hex($start), hex($end));
1289        } else {
1290          $EAW{$pv}->Append(hex($start));
1291        }
1292      }
1293      close IN;
1294  
1295  
1296      for (keys %EAW) {
1297      $EAW{$_}->Write(
1298          ["lib","ea","$_.pl"],
1299          "EastAsianWidth category '$PropValueAlias{ea}{$_}'"
1300      );
1301      }
1302  }
1303  
1304  ##
1305  ## Process HangulSyllableType.txt.
1306  ##
1307  sub HangulSyllableType_txt()
1308  {
1309      if (not open IN, "HangulSyllableType.txt") {
1310          die "$0: HangulSyllableType.txt: $!\n";
1311      }
1312  
1313      my %HST;
1314  
1315      while (<IN>)
1316      {
1317          next unless /^([0-9A-Fa-f]+)(?:\.\.([0-9A-Fa-f]+))?\s*;\s*(\w+)/;
1318      my ($first, $last, $pv) = (hex($1), hex($2||""), $3);
1319  
1320          $HST{$pv} ||= Table->New(Is => "HangulSyllableType$pv");
1321          $HST{$pv}->Append($first);
1322  
1323      if ($last) { $HST{$pv}->Extend($last) }
1324      }
1325      close IN;
1326  
1327      for (keys %HST) {
1328      $HST{$_}->Write(
1329          ["lib","hst","$_.pl"],
1330          "HangulSyllableType category '$PropValueAlias{hst}{$_}'"
1331      );
1332      }
1333  }
1334  
1335  ##
1336  ## Process Jamo.txt.
1337  ##
1338  sub Jamo_txt()
1339  {
1340      if (not open IN, "Jamo.txt") {
1341          die "$0: Jamo.txt: $!\n";
1342      }
1343      my $Short = Table->New();
1344  
1345      while (<IN>)
1346      {
1347      next unless /^([0-9A-Fa-f]+)\s*;\s*(\w*)/;
1348      my ($code, $short) = (hex($1), $2);
1349  
1350      $Short->Append($code, $short);
1351      }
1352      close IN;
1353      # $Short->Write("JamoShort.pl");
1354  }
1355  
1356  ##
1357  ## Process Scripts.txt.
1358  ##
1359  sub Scripts_txt()
1360  {
1361      my @ScriptInfo;
1362  
1363      if (not open(IN, "Scripts.txt")) {
1364          die "$0: Scripts.txt: $!\n";
1365      }
1366      while (<IN>) {
1367          next unless /^([0-9A-Fa-f]+)(?:\.\.([0-9A-Fa-f]+))?\s*;\s*(.+?)\s*\#/;
1368  
1369          # Wait until all the scripts have been read since
1370          # they are not listed in numeric order.
1371          push @ScriptInfo, [ hex($1), hex($2||""), $3 ];
1372      }
1373      close IN;
1374  
1375      # Now append the scripts properties in their code point order.
1376  
1377      my %Script;
1378      my $Scripts = Table->New();
1379  
1380      for my $script (sort { $a->[0] <=> $b->[0] } @ScriptInfo)
1381      {
1382          my ($first, $last, $name) = @$script;
1383          $Scripts->Append($first, $name);
1384  
1385          $Script{$name} ||= Table->New(Is    => $name,
1386                                        Desc  => "Script '$name'",
1387                                        Fuzzy => 1);
1388          $Script{$name}->Append($first, $name);
1389  
1390          if ($last) {
1391              $Scripts->Extend($last);
1392              $Script{$name}->Extend($last);
1393          }
1394      }
1395  
1396      # $Scripts->Write("Scripts.pl");
1397  
1398      ## Common is everything not explicitly assigned to a Script
1399      ##
1400      ##    ***shouldn't this be intersected with \p{Assigned}? ******
1401      ##
1402      New_Prop(Is => 'Common',
1403               $Scripts->Invert,
1404               Desc  => 'Pseudo-Script of codepoints not in other Unicode scripts',
1405               Fuzzy => 1);
1406  }
1407  
1408  ##
1409  ## Given a name like "Close Punctuation", return a regex (that when applied
1410  ## with /i) matches any valid form of that name (e.g. "ClosePunctuation",
1411  ## "Close-Punctuation", etc.)
1412  ##
1413  ## Accept any space, dash, or underbar where in the official name there is
1414  ## space or a dash (or underbar, but there never is).
1415  ##
1416  ##
1417  sub NameToRegex($)
1418  {
1419      my $Name = shift;
1420      $Name =~ s/[- _]/(?:[-_]|\\s+)?/g;
1421      return $Name;
1422  }
1423  
1424  ##
1425  ## Process Blocks.txt.
1426  ##
1427  sub Blocks_txt()
1428  {
1429      my $Blocks = Table->New();
1430      my %Blocks;
1431  
1432      if (not open IN, "Blocks.txt") {
1433          die "$0: Blocks.txt: $!\n";
1434      }
1435  
1436      while (<IN>)
1437      {
1438          #next if not /Private Use$/;
1439      next if not /^([0-9A-Fa-f]+)\.\.([0-9A-Fa-f]+)\s*;\s*(.+?)\s*$/;
1440  
1441      my ($first, $last, $name) = (hex($1), hex($2), $3);
1442  
1443      $Blocks->Append($first, $name);
1444  
1445          $Blocks{$name} ||= Table->New(In    => $name,
1446                                        Desc  => "Block '$name'",
1447                                        Fuzzy => 1);
1448          $Blocks{$name}->Append($first, $name);
1449  
1450      if ($last and $last != $first) {
1451          $Blocks->Extend($last);
1452          $Blocks{$name}->Extend($last);
1453      }
1454      }
1455      close IN;
1456  
1457      # $Blocks->Write("Blocks.pl");
1458  }
1459  
1460  ##
1461  ## Read in the PropList.txt.  It contains extended properties not
1462  ## listed in the UnicodeData.txt, such as 'Other_Alphabetic':
1463  ## alphabetic but not of the general category L; many modifiers
1464  ## belong to this extended property category: while they are not
1465  ## alphabets, they are alphabetic in nature.
1466  ##
1467  sub PropList_txt()
1468  {
1469      my @PropInfo;
1470  
1471      if (not open IN, "PropList.txt") {
1472          die "$0: PropList.txt: $!\n";
1473      }
1474  
1475      while (<IN>)
1476      {
1477      next unless /^([0-9A-Fa-f]+)(?:\.\.([0-9A-Fa-f]+))?\s*;\s*(.+?)\s*\#/;
1478  
1479      # Wait until all the extended properties have been read since
1480      # they are not listed in numeric order.
1481      push @PropInfo, [ hex($1), hex($2||""), $3 ];
1482      }
1483      close IN;
1484  
1485      # Now append the extended properties in their code point order.
1486      my $Props = Table->New();
1487      my %Prop;
1488  
1489      for my $prop (sort { $a->[0] <=> $b->[0] } @PropInfo)
1490      {
1491          my ($first, $last, $name) = @$prop;
1492          $Props->Append($first, $name);
1493  
1494          $Prop{$name} ||= Table->New(Is    => $name,
1495                                      Desc  => "Extended property '$name'",
1496                                      Fuzzy => 1);
1497          $Prop{$name}->Append($first, $name);
1498  
1499          if ($last) {
1500              $Props->Extend($last);
1501              $Prop{$name}->Extend($last);
1502          }
1503      }
1504  
1505      for (keys %Prop) {
1506      (my $file = $PA_reverse{$_}) =~ tr/_//d;
1507      # XXX I'm assuming that the names from %Prop don't suffer 8.3 clashes.
1508      $BaseNames{lc $file}++;
1509      $Prop{$_}->Write(
1510          ["lib","gc_sc","$file.pl"],
1511          "Binary property '$_'"
1512      );
1513      }
1514  
1515      # Alphabetic is L, Nl, and Other_Alphabetic.
1516      New_Prop(Is    => 'Alphabetic',
1517               Table->Merge($Cat{L}, $Cat{Nl}, $Prop{Other_Alphabetic}),
1518               Desc  => '[\p{L}\p{Nl}\p{OtherAlphabetic}]', # canonical names
1519               Fuzzy => 1);
1520  
1521      # Lowercase is Ll and Other_Lowercase.
1522      New_Prop(Is    => 'Lowercase',
1523               Table->Merge($Cat{Ll}, $Prop{Other_Lowercase}),
1524               Desc  => '[\p{Ll}\p{OtherLowercase}]', # canonical names
1525               Fuzzy => 1);
1526  
1527      # Uppercase is Lu and Other_Uppercase.
1528      New_Prop(Is => 'Uppercase',
1529               Table->Merge($Cat{Lu}, $Prop{Other_Uppercase}),
1530               Desc  => '[\p{Lu}\p{OtherUppercase}]', # canonical names
1531               Fuzzy => 1);
1532  
1533      # Math is Sm and Other_Math.
1534      New_Prop(Is => 'Math',
1535               Table->Merge($Cat{Sm}, $Prop{Other_Math}),
1536               Desc  => '[\p{Sm}\p{OtherMath}]', # canonical names
1537               Fuzzy => 1);
1538  
1539      # ID_Start is Ll, Lu, Lt, Lm, Lo, Nl, and Other_ID_Start.
1540      New_Prop(Is => 'ID_Start',
1541               Table->Merge(@Cat{qw[Ll Lu Lt Lm Lo Nl]}, $Prop{Other_ID_Start}),
1542               Desc  => '[\p{Ll}\p{Lu}\p{Lt}\p{Lm}\p{Lo}\p{Nl}\p{OtherIDStart}]',
1543               Fuzzy => 1);
1544  
1545      # ID_Continue is ID_Start, Mn, Mc, Nd, Pc, and Other_ID_Continue.
1546      New_Prop(Is => 'ID_Continue',
1547               Table->Merge(@Cat{qw[Ll Lu Lt Lm Lo Nl Mn Mc Nd Pc ]},
1548                            @Prop{qw[Other_ID_Start Other_ID_Continue]}),
1549               Desc  => '[\p{ID_Start}\p{Mn}\p{Mc}\p{Nd}\p{Pc}\p{OtherIDContinue}]',
1550               Fuzzy => 1);
1551  
1552      # Default_Ignorable_Code_Point = Other_Default_Ignorable_Code_Point
1553      #                     + Cf + Cc + Cs + Noncharacter + Variation_Selector
1554      #                     - WhiteSpace - FFF9..FFFB (Annotation Characters)
1555  
1556      my $Annotation = Table->New();
1557      $Annotation->RawAppendRange(0xFFF9, 0xFFFB);
1558  
1559      New_Prop(Is => 'Default_Ignorable_Code_Point',
1560               Table->Merge(@Cat{qw[Cf Cc Cs]},
1561                            $Prop{Noncharacter_Code_Point},
1562                            $Prop{Variation_Selector},
1563                            $Prop{Other_Default_Ignorable_Code_Point})
1564                    ->Invert
1565                    ->Merge($Prop{White_Space}, $Annotation)
1566                    ->Invert,
1567               Desc  => '(?![\p{WhiteSpace}\x{FFF9}-\x{FFFB}])[\p{Cf}\p{Cc}'.
1568                        '\p{Cs}\p{NoncharacterCodePoint}\p{VariationSelector}'.
1569                        '\p{OtherDefaultIgnorableCodePoint}]',
1570               Fuzzy => 1);
1571  
1572  }
1573  
1574  
1575  ##
1576  ## These are used in:
1577  ##   MakePropTestScript()
1578  ##   WriteAllMappings()
1579  ## for making the test script.
1580  ##
1581  my %FuzzyNameToTest;
1582  my %ExactNameToTest;
1583  
1584  
1585  ## This used only for making the test script
1586  sub GenTests($$$$)
1587  {
1588      my $FH = shift;
1589      my $Prop = shift;
1590      my $MatchCode = shift;
1591      my $FailCode = shift;
1592  
1593      if (defined $MatchCode) {
1594          printf $FH qq/Expect(1, "\\x{%04X}", '\\p{$Prop}' );\n/, $MatchCode;
1595          printf $FH qq/Expect(0, "\\x{%04X}", '\\p{^$Prop}');\n/, $MatchCode;
1596          printf $FH qq/Expect(0, "\\x{%04X}", '\\P{$Prop}' );\n/, $MatchCode;
1597          printf $FH qq/Expect(1, "\\x{%04X}", '\\P{^$Prop}');\n/, $MatchCode;
1598      }
1599      if (defined $FailCode) {
1600          printf $FH qq/Expect(0, "\\x{%04X}", '\\p{$Prop}' );\n/, $FailCode;
1601          printf $FH qq/Expect(1, "\\x{%04X}", '\\p{^$Prop}');\n/, $FailCode;
1602          printf $FH qq/Expect(1, "\\x{%04X}", '\\P{$Prop}' );\n/, $FailCode;
1603          printf $FH qq/Expect(0, "\\x{%04X}", '\\P{^$Prop}');\n/, $FailCode;
1604      }
1605  }
1606  
1607  ## This used only for making the test script
1608  sub ExpectError($$)
1609  {
1610      my $FH = shift;
1611      my $prop = shift;
1612  
1613      print $FH qq/Error('\\p{$prop}');\n/;
1614      print $FH qq/Error('\\P{$prop}');\n/;
1615  }
1616  
1617  ## This used only for making the test script
1618  my @GoodSeps = (
1619                  " ",
1620                  "-",
1621                  " \t ",
1622                  "",
1623                  "",
1624                  "_",
1625                 );
1626  my @BadSeps = (
1627                 "--",
1628                 "__",
1629                 " _",
1630                 "/"
1631                );
1632  
1633  ## This used only for making the test script
1634  sub RandomlyFuzzifyName($;$)
1635  {
1636      my $Name = shift;
1637      my $WantError = shift;  ## if true, make an error
1638  
1639      my @parts;
1640      for my $part (split /[-\s_]+/, $Name)
1641      {
1642          if (@parts) {
1643              if ($WantError and rand() < 0.3) {
1644                  push @parts, $BadSeps[rand(@BadSeps)];
1645                  $WantError = 0;
1646              } else {
1647                  push @parts, $GoodSeps[rand(@GoodSeps)];
1648              }
1649          }
1650          my $switch = int rand(4);
1651          if ($switch == 0) {
1652              push @parts, uc $part;
1653          } elsif ($switch == 1) {
1654              push @parts, lc $part;
1655          } elsif ($switch == 2) {
1656              push @parts, ucfirst $part;
1657          } else {
1658              push @parts, $part;
1659          }
1660      }
1661      my $new = join('', @parts);
1662  
1663      if ($WantError) {
1664          if (rand() >= 0.5) {
1665              $new .= $BadSeps[rand(@BadSeps)];
1666          } else {
1667              $new = $BadSeps[rand(@BadSeps)] . $new;
1668          }
1669      }
1670      return $new;
1671  }
1672  
1673  ## This used only for making the test script
1674  sub MakePropTestScript()
1675  {
1676      ## this written directly -- it's huge.
1677      force_unlink ("TestProp.pl");
1678      if (not open OUT, ">TestProp.pl") {
1679          die "$0: TestProp.pl: $!\n";
1680      }
1681      print OUT <DATA>;
1682  
1683      while (my ($Name, $Table) = each %ExactNameToTest)
1684      {
1685          GenTests(*OUT, $Name, $Table->ValidCode, $Table->InvalidCode);
1686          ExpectError(*OUT, uc $Name) if uc $Name ne $Name;
1687          ExpectError(*OUT, lc $Name) if lc $Name ne $Name;
1688      }
1689  
1690  
1691      while (my ($Name, $Table) = each %FuzzyNameToTest)
1692      {
1693          my $Orig  = $CanonicalToOrig{$Name};
1694          my %Names = (
1695                       $Name => 1,
1696                       $Orig => 1,
1697                       RandomlyFuzzifyName($Orig) => 1
1698                      );
1699  
1700          for my $N (keys %Names) {
1701              GenTests(*OUT, $N, $Table->ValidCode, $Table->InvalidCode);
1702          }
1703  
1704          ExpectError(*OUT, RandomlyFuzzifyName($Orig, 'ERROR'));
1705      }
1706  
1707      print OUT "Finished();\n";
1708      close OUT;
1709  }
1710  
1711  
1712  ##
1713  ## These are used only in:
1714  ##   RegisterFileForName()
1715  ##   WriteAllMappings()
1716  ##
1717  my %Exact;      ## will become %utf8::Exact;
1718  my %Canonical;  ## will become %utf8::Canonical;
1719  my %CaComment;  ## Comment for %Canonical entry of same key
1720  
1721  ##
1722  ## Given info about a name and a datafile that it should be associated with,
1723  ## register that assocation in %Exact and %Canonical.
1724  sub RegisterFileForName($$$$)
1725  {
1726      my $Type     = shift;
1727      my $Name     = shift;
1728      my $IsFuzzy  = shift;
1729      my $filename = shift;
1730  
1731      ##
1732      ## Now in details for the mapping. $Type eq 'Is' has the
1733      ## Is removed, as it will be removed in utf8_heavy when this
1734      ## data is being checked. In keeps its "In", but a second
1735      ## sans-In record is written if it doesn't conflict with
1736      ## anything already there.
1737      ##
1738      if (not $IsFuzzy)
1739      {
1740          if ($Type eq 'Is') {
1741              die "oops[$Name]" if $Exact{$Name};
1742              $Exact{$Name} = $filename;
1743          } else {
1744              die "oops[$Type$Name]" if $Exact{"$Type$Name"};
1745              $Exact{"$Type$Name"} = $filename;
1746              $Exact{$Name} = $filename if not $Exact{$Name};
1747          }
1748      }
1749      else
1750      {
1751          my $CName = lc $Name;
1752          if ($Type eq 'Is') {
1753              die "oops[$CName]" if $Canonical{$CName};
1754              $Canonical{$CName} = $filename;
1755              $CaComment{$CName} = $Name if $Name =~ tr/A-Z// >= 2;
1756          } else {
1757              die "oops[$Type$CName]" if $Canonical{lc "$Type$CName"};
1758              $Canonical{lc "$Type$CName"} = $filename;
1759              $CaComment{lc "$Type$CName"} = "$Type$Name";
1760              if (not $Canonical{$CName}) {
1761                  $Canonical{$CName} = $filename;
1762                  $CaComment{$CName} = "$Type$Name";
1763              }
1764          }
1765      }
1766  }
1767  
1768  ##
1769  ## Writes the info accumulated in
1770  ##
1771  ##       %TableInfo;
1772  ##       %FuzzyNames;
1773  ##       %AliasInfo;
1774  ##
1775  ##
1776  sub WriteAllMappings()
1777  {
1778      my @MAP;
1779  
1780      ## 'Is' *MUST* come first, so its names have precidence over 'In's
1781      for my $Type ('Is', 'In')
1782      {
1783          my %RawNameToFile; ## a per-$Type cache
1784  
1785          for my $Name (sort {length $a <=> length $b} keys %{$TableInfo{$Type}})
1786          {
1787              ## Note: $Name is already canonical
1788              my $Table   = $TableInfo{$Type}->{$Name};
1789              my $IsFuzzy = $FuzzyNames{$Type}->{$Name};
1790  
1791              ## Need an 8.3 safe filename (which means "an 8 safe" $filename)
1792              my $filename;
1793              {
1794                  ## 'Is' items lose 'Is' from the basename.
1795                  $filename = $Type eq 'Is' ?
1796              ($PVA_reverse{sc}{$Name} || $Name) :
1797              "$Type$Name";
1798  
1799                  $filename =~ s/[^\w_]+/_/g; # "L&" -> "L_"
1800                  substr($filename, 8) = '' if length($filename) > 8;
1801  
1802                  ##
1803                  ## Make sure the basename doesn't conflict with something we
1804                  ## might have already written. If we have, say,
1805                  ##     InGreekExtended1
1806                  ##     InGreekExtended2
1807                  ## they become
1808                  ##     InGreekE
1809                  ##     InGreek2
1810                  ##
1811                  while (my $num = $BaseNames{lc $filename}++)
1812                  {
1813                      $num++; ## so basenames with numbers start with '2', which
1814                              ## just looks more natural.
1815                      ## Want to append $num, but if it'll make the basename longer
1816                      ## than 8 characters, pre-truncate $filename so that the result
1817                      ## is acceptable.
1818                      my $delta = length($filename) + length($num) - 8;
1819                      if ($delta > 0) {
1820                          substr($filename, -$delta) = $num;
1821                      } else {
1822                          $filename .= $num;
1823                      }
1824                  }
1825              };
1826  
1827              ##
1828              ## Construct a nice comment to add to the file, and build data
1829              ## for the "./Properties" file along the way.
1830              ##
1831              my $Comment;
1832              {
1833                  my $Desc = $TableDesc{$Type}->{$Name} || "";
1834                  ## get list of names this table is reference by
1835                  my @Supported = $Name;
1836                  while (my ($Orig, $Alias) = each %{ $AliasInfo{$Type} })
1837                  {
1838                      if ($Orig eq $Name) {
1839                          push @Supported, $Alias;
1840                      }
1841                  }
1842  
1843                  my $TypeToShow = $Type eq 'Is' ? "" : $Type;
1844                  my $OrigProp;
1845  
1846                  $Comment = "This file supports:\n";
1847                  for my $N (@Supported)
1848                  {
1849                      my $IsFuzzy = $FuzzyNames{$Type}->{$N};
1850                      my $Prop    = "\\p{$TypeToShow$Name}";
1851                      $OrigProp = $Prop if not $OrigProp; #cache for aliases
1852                      if ($IsFuzzy) {
1853                          $Comment .= "\t$Prop (and fuzzy permutations)\n";
1854                      } else {
1855                          $Comment .= "\t$Prop\n";
1856                      }
1857                      my $MyDesc = ($N eq $Name) ? $Desc : "Alias for $OrigProp ($Desc)";
1858  
1859                      push @MAP, sprintf("%s %-42s %s\n",
1860                                         $IsFuzzy ? '*' : ' ', $Prop, $MyDesc);
1861                  }
1862                  if ($Desc) {
1863                      $Comment .= "\nMeaning: $Desc\n";
1864                  }
1865  
1866              }
1867              ##
1868              ## Okay, write the file...
1869              ##
1870              $Table->Write(["lib","gc_sc","$filename.pl"], $Comment);
1871  
1872              ## and register it
1873              $RawNameToFile{$Name} = $filename;
1874              RegisterFileForName($Type => $Name, $IsFuzzy, $filename);
1875  
1876              if ($IsFuzzy)
1877              {
1878                  my $CName = CanonicalName($Type . '_'. $Name);
1879                  $FuzzyNameToTest{$Name}  = $Table if !$FuzzyNameToTest{$Name};
1880                  $FuzzyNameToTest{$CName} = $Table if !$FuzzyNameToTest{$CName};
1881              } else {
1882                  $ExactNameToTest{$Name} = $Table;
1883              }
1884  
1885          }
1886  
1887          ## Register aliase info
1888          for my $Name (sort {length $a <=> length $b} keys %{$AliasInfo{$Type}})
1889          {
1890              my $Alias    = $AliasInfo{$Type}->{$Name};
1891              my $IsFuzzy  = $FuzzyNames{$Type}->{$Alias};
1892              my $filename = $RawNameToFile{$Name};
1893              die "oops [$Alias]->[$Name]" if not $filename;
1894              RegisterFileForName($Type => $Alias, $IsFuzzy, $filename);
1895  
1896              my $Table = $TableInfo{$Type}->{$Name};
1897              die "oops" if not $Table;
1898              if ($IsFuzzy)
1899              {
1900                  my $CName = CanonicalName($Type .'_'. $Alias);
1901                  $FuzzyNameToTest{$Alias} = $Table if !$FuzzyNameToTest{$Alias};
1902                  $FuzzyNameToTest{$CName} = $Table if !$FuzzyNameToTest{$CName};
1903              } else {
1904                  $ExactNameToTest{$Alias} = $Table;
1905              }
1906          }
1907      }
1908  
1909      ##
1910      ## Write out the property list
1911      ##
1912      {
1913          my @OUT = (
1914                     "##\n",
1915                     "## This file created by $0\n",
1916                     "## List of built-in \\p{...}/\\P{...} properties.\n",
1917                     "##\n",
1918                     "## '*' means name may be 'fuzzy'\n",
1919                     "##\n\n",
1920                     sort { substr($a,2) cmp substr($b, 2) } @MAP,
1921                    );
1922          WriteIfChanged('Properties', @OUT);
1923      }
1924  
1925      use Text::Tabs ();  ## using this makes the files about half the size
1926  
1927      ## Write Exact.pl
1928      {
1929          my @OUT = (
1930                     $HEADER,
1931                     "##\n",
1932                     "## Data in this file used by ../utf8_heavy.pl\n",
1933                     "##\n\n",
1934                     "## Mapping from name to filename in ./lib/gc_sc\n",
1935                     "%utf8::Exact = (\n",
1936                    );
1937  
1938      $Exact{InGreek} = 'InGreekA';  # this is evil kludge
1939          for my $Name (sort keys %Exact)
1940          {
1941              my $File = $Exact{$Name};
1942              $Name = $Name =~ m/\W/ ? qq/'$Name'/ : " $Name ";
1943              my $Text = sprintf("%-15s => %s,\n", $Name, qq/'$File'/);
1944              push @OUT, Text::Tabs::unexpand($Text);
1945          }
1946          push @OUT, ");\n1;\n";
1947  
1948          WriteIfChanged('Exact.pl', @OUT);
1949      }
1950  
1951      ## Write Canonical.pl
1952      {
1953          my @OUT = (
1954                     $HEADER,
1955                     "##\n",
1956                     "## Data in this file used by ../utf8_heavy.pl\n",
1957                     "##\n\n",
1958                     "## Mapping from lc(canonical name) to filename in ./lib\n",
1959                     "%utf8::Canonical = (\n",
1960                    );
1961          my $Trail = ""; ## used just to keep the spacing pretty
1962          for my $Name (sort keys %Canonical)
1963          {
1964              my $File = $Canonical{$Name};
1965              if ($CaComment{$Name}) {
1966                  push @OUT, "\n" if not $Trail;
1967                  push @OUT, " # $CaComment{$Name}\n";
1968                  $Trail = "\n";
1969              } else {
1970                  $Trail = "";
1971              }
1972              $Name = $Name =~ m/\W/ ? qq/'$Name'/ : " $Name ";
1973              my $Text = sprintf("  %-41s => %s,\n$Trail", $Name, qq/'$File'/);
1974              push @OUT, Text::Tabs::unexpand($Text);
1975          }
1976          push @OUT, ");\n1\n";
1977          WriteIfChanged('Canonical.pl', @OUT);
1978      }
1979  
1980      MakePropTestScript() if $MakeTestScript;
1981  }
1982  
1983  
1984  sub SpecialCasing_txt()
1985  {
1986      #
1987      # Read in the special cases.
1988      #
1989  
1990      my %CaseInfo;
1991  
1992      if (not open IN, "SpecialCasing.txt") {
1993          die "$0: SpecialCasing.txt: $!\n";
1994      }
1995      while (<IN>) {
1996          next unless /^[0-9A-Fa-f]+;/;
1997          s/\#.*//;
1998          s/\s+$//;
1999  
2000          my ($code, $lower, $title, $upper, $condition) = split(/\s*;\s*/);
2001  
2002          if ($condition) { # not implemented yet
2003              print "# SKIPPING $_\n" if $Verbose;
2004              next;
2005          }
2006  
2007          # Wait until all the special cases have been read since
2008          # they are not listed in numeric order.
2009          my $ix = hex($code);
2010          push @{$CaseInfo{Lower}}, [ $ix, $code, $lower ]
2011          unless $code eq $lower;
2012          push @{$CaseInfo{Title}}, [ $ix, $code, $title ]
2013          unless $code eq $title;
2014          push @{$CaseInfo{Upper}}, [ $ix, $code, $upper ]
2015          unless $code eq $upper;
2016      }
2017      close IN;
2018  
2019      # Now write out the special cases properties in their code point order.
2020      # Prepend them to the To/{Upper,Lower,Title}.pl.
2021  
2022      for my $case (qw(Lower Title Upper))
2023      {
2024          my $NormalCase = do "To/$case.pl" || die "$0: $@\n";
2025  
2026          my @OUT =
2027          (
2028           $HEADER, "\n",
2029           "# The key UTF-8 _bytes_, the value UTF-8 (speed hack)\n",
2030           "%utf8::ToSpec$case =\n(\n",
2031          );
2032  
2033          for my $prop (sort { $a->[0] <=> $b->[0] } @{$CaseInfo{$case}}) {
2034              my ($ix, $code, $to) = @$prop;
2035              my $tostr =
2036                join "", map { sprintf "\\x{%s}", $_ } split ' ', $to;
2037              push @OUT, sprintf qq["%s" => "$tostr",\n], join("", map { sprintf "\\x%02X", $_ } unpack("U0C*", pack("U", $ix)));
2038          # Remove any single-character mappings for
2039          # the same character since we are going for
2040          # the special casing rules.
2041          $NormalCase =~ s/^$code\t\t\w+\n//m;
2042          }
2043          push @OUT, (
2044                      ");\n\n",
2045                      "return <<'END';\n",
2046                      $NormalCase,
2047                      "END\n"
2048                      );
2049          WriteIfChanged(["To","$case.pl"], @OUT);
2050      }
2051  }
2052  
2053  #
2054  # Read in the case foldings.
2055  #
2056  # We will do full case folding, C + F + I (see CaseFolding.txt).
2057  #
2058  sub CaseFolding_txt()
2059  {
2060      if (not open IN, "CaseFolding.txt") {
2061      die "$0: CaseFolding.txt: $!\n";
2062      }
2063  
2064      my $Fold = Table->New();
2065      my %Fold;
2066  
2067      while (<IN>) {
2068      # Skip status 'S', simple case folding
2069      next unless /^([0-9A-Fa-f]+)\s*;\s*([CFI])\s*;\s*([0-9A-Fa-f]+(?: [0-9A-Fa-f]+)*)\s*;/;
2070  
2071      my ($code, $status, $fold) = (hex($1), $2, $3);
2072  
2073      if ($status eq 'C') { # Common: one-to-one folding
2074          # No append() since several codes may fold into one.
2075          $Fold->RawAppendRange($code, $code, $fold);
2076      } else { # F: full, or I: dotted uppercase I -> dotless lowercase I
2077          $Fold{$code} = $fold;
2078      }
2079      }
2080      close IN;
2081  
2082      $Fold->Write("To/Fold.pl");
2083  
2084      #
2085      # Prepend the special foldings to the common foldings.
2086      #
2087      my $CommonFold = do "To/Fold.pl" || die "$0: To/Fold.pl: $!\n";
2088  
2089      my @OUT =
2090      (
2091       $HEADER, "\n",
2092       "#  The ke UTF-8 _bytes_, the value UTF-8 (speed hack)\n",
2093       "%utf8::ToSpecFold =\n(\n",
2094      );
2095      for my $code (sort { $a <=> $b } keys %Fold) {
2096          my $foldstr =
2097            join "", map { sprintf "\\x{%s}", $_ } split ' ', $Fold{$code};
2098          push @OUT, sprintf qq["%s" => "$foldstr",\n], join("", map { sprintf "\\x%02X", $_ } unpack("U0C*", pack("U", $code)));
2099      }
2100      push @OUT, (
2101                  ");\n\n",
2102                  "return <<'END';\n",
2103                  $CommonFold,
2104                  "END\n",
2105                 );
2106  
2107      WriteIfChanged(["To","Fold.pl"], @OUT);
2108  }
2109  
2110  ## Do it....
2111  
2112  Build_Aliases();
2113  UnicodeData_Txt();
2114  PropList_txt();
2115  
2116  Scripts_txt();
2117  Blocks_txt();
2118  
2119  WriteAllMappings();
2120  
2121  LineBreak_Txt();
2122  ArabicShaping_txt();
2123  EastAsianWidth_txt();
2124  HangulSyllableType_txt();
2125  Jamo_txt();
2126  SpecialCasing_txt();
2127  CaseFolding_txt();
2128  
2129  if ( $FileList and $MakeList ) {
2130      
2131      print "Updating '$FileList'\n"
2132          if ($Verbose);
2133          
2134      open my $ofh,">",$FileList 
2135          or die "Can't write to '$FileList':$!";
2136      print $ofh <<"EOFHEADER";
2137  #
2138  # mktables.lst -- File list for mktables.
2139  #
2140  #   Autogenerated on @{[scalar localtime]}
2141  #
2142  # - First section is input files
2143  #   (mktables itself is automatically included)
2144  # - Section seperator is /^=+\$/
2145  # - Second section is a list of output files.
2146  # - Lines matching /^\\s*#/ are treated as comments
2147  #   which along with blank lines are ignored.
2148  #
2149  
2150  # Input files:
2151  
2152  EOFHEADER
2153      my @input=("version",glob('*.txt'));
2154      print $ofh "$_\n" for 
2155          @input,
2156          "\n=================================\n",
2157          "# Output files:\n",
2158          # special files
2159          "Properties";
2160          
2161      
2162      require File::Find;
2163      my $count=0;
2164      File::Find::find({
2165          no_chdir=>1,
2166          wanted=>sub {
2167            if (/\.pl$/) {
2168              s!^\./!!;
2169              print $ofh "$_\n";
2170              $count++;
2171            }
2172          },
2173      },"."); 
2174      
2175      print $ofh "\n# ",scalar(@input)," input files\n",
2176                 "# ",scalar($count+1)," output files\n\n",
2177                 "# End list\n";  
2178      close $ofh 
2179          or warn "Failed to close $ofh: $!";
2180      
2181      print "Filelist has ",scalar(@input)," input files and ",
2182            scalar($count+1)," output files\n"
2183          if $Verbose;
2184  }
2185  print "All done\n" if $Verbose;
2186  exit(0);
2187  
2188  ## TRAILING CODE IS USED BY MakePropTestScript()
2189  __DATA__
2190  use strict;
2191  use warnings;
2192  
2193  my $Tests = 0;
2194  my $Fails = 0;
2195  
2196  sub Expect($$$)
2197  {
2198      my $Expect = shift;
2199      my $String = shift;
2200      my $Regex  = shift;
2201      my $Line   = (caller)[2];
2202  
2203      $Tests++;
2204      my $RegObj;
2205      my $result = eval {
2206          $RegObj = qr/$Regex/;
2207          $String =~ $RegObj ? 1 : 0
2208      };
2209      
2210      if (not defined $result) {
2211          print "couldn't compile /$Regex/ on $0 line $Line: $@\n";
2212          $Fails++;
2213      } elsif ($result ^ $Expect) {
2214          print "bad result (expected $Expect) on $0 line $Line: $@\n";
2215          $Fails++;
2216      }
2217  }
2218  
2219  sub Error($)
2220  {
2221      my $Regex  = shift;
2222      $Tests++;
2223      if (eval { 'x' =~ qr/$Regex/; 1 }) {
2224          $Fails++;
2225          my $Line = (caller)[2];
2226          print "expected error for /$Regex/ on $0 line $Line: $@\n";
2227      }
2228  }
2229  
2230  sub Finished()
2231  {
2232     if ($Fails == 0) {
2233        print "All $Tests tests passed.\n";
2234        exit(0);
2235     } else {
2236        print "$Tests tests, $Fails failed!\n";
2237        exit(-1);
2238     }
2239  }


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