#!/usr/bin/perl
#
#	UCW Library -- Character map for the XML parser
#
#	(c) 2007 Pavel Charvat <pchar@ucw.cz>
#
#	This software may be freely distributed and used according to the terms
#	of the GNU Lesser General Public License.
#

my @cat = ();
my @lcat = ();
my %ids = ();
my %cls = ();
for (my $i = 0; $i < 0x10000; $i++) { $cat[$i] = 0; }
for (my $i = 0; $i < 0x11; $i++) { $lcat[$i] = 0; }

my @white = (0x9, 0xA, 0xD, 0x20);
my @base_char_1_0 = (
  [0x0041,0x005A], [0x0061,0x007A], [0x00C0,0x00D6], [0x00D8,0x00F6], [0x00F8,0x00FF], [0x0100,0x0131],
  [0x0134,0x013E], [0x0141,0x0148], [0x014A,0x017E], [0x0180,0x01C3], [0x01CD,0x01F0], [0x01F4,0x01F5],
  [0x01FA,0x0217], [0x0250,0x02A8], [0x02BB,0x02C1], 0x0386, [0x0388,0x038A], 0x038C, [0x038E,0x03A1],
  [0x03A3,0x03CE], [0x03D0,0x03D6], 0x03DA, 0x03DC, 0x03DE, 0x03E0, [0x03E2,0x03F3], [0x0401,0x040C],
  [0x040E,0x044F], [0x0451,0x045C], [0x045E,0x0481], [0x0490,0x04C4], [0x04C7,0x04C8], [0x04CB,0x04CC],
  [0x04D0,0x04EB], [0x04EE,0x04F5], [0x04F8,0x04F9], [0x0531,0x0556], 0x0559, [0x0561,0x0586], [0x05D0,0x05EA],
  [0x05F0,0x05F2], [0x0621,0x063A], [0x0641,0x064A], [0x0671,0x06B7], [0x06BA,0x06BE], [0x06C0,0x06CE],
  [0x06D0,0x06D3], 0x06D5, [0x06E5,0x06E6], [0x0905,0x0939], 0x093D, [0x0958,0x0961], [0x0985,0x098C],
  [0x098F,0x0990], [0x0993,0x09A8], [0x09AA,0x09B0], 0x09B2, [0x09B6,0x09B9], [0x09DC,0x09DD], [0x09DF,0x09E1],
  [0x09F0,0x09F1], [0x0A05,0x0A0A], [0x0A0F,0x0A10], [0x0A13,0x0A28], [0x0A2A,0x0A30], [0x0A32,0x0A33],
  [0x0A35,0x0A36], [0x0A38,0x0A39], [0x0A59,0x0A5C], 0x0A5E, [0x0A72,0x0A74], [0x0A85,0x0A8B], 0x0A8D,
  [0x0A8F,0x0A91], [0x0A93,0x0AA8], [0x0AAA,0x0AB0], [0x0AB2,0x0AB3], [0x0AB5,0x0AB9], 0x0ABD, 0x0AE0,
  [0x0B05,0x0B0C], [0x0B0F,0x0B10], [0x0B13,0x0B28], [0x0B2A,0x0B30], [0x0B32,0x0B33], [0x0B36,0x0B39],
  0x0B3D, [0x0B5C,0x0B5D], [0x0B5F,0x0B61], [0x0B85,0x0B8A], [0x0B8E,0x0B90], [0x0B92,0x0B95], [0x0B99,0x0B9A],
  0x0B9C, [0x0B9E,0x0B9F], [0x0BA3,0x0BA4], [0x0BA8,0x0BAA], [0x0BAE,0x0BB5], [0x0BB7,0x0BB9], [0x0C05,0x0C0C],
  [0x0C0E,0x0C10], [0x0C12,0x0C28], [0x0C2A,0x0C33], [0x0C35,0x0C39], [0x0C60,0x0C61], [0x0C85,0x0C8C],
  [0x0C8E,0x0C90], [0x0C92,0x0CA8], [0x0CAA,0x0CB3], [0x0CB5,0x0CB9], 0x0CDE, [0x0CE0,0x0CE1], [0x0D05,0x0D0C],
  [0x0D0E,0x0D10], [0x0D12,0x0D28], [0x0D2A,0x0D39], [0x0D60,0x0D61], [0x0E01,0x0E2E], 0x0E30, [0x0E32,0x0E33],
  [0x0E40,0x0E45], [0x0E81,0x0E82], 0x0E84, [0x0E87,0x0E88], 0x0E8A, 0x0E8D, [0x0E94,0x0E97], [0x0E99,0x0E9F],
  [0x0EA1,0x0EA3], 0x0EA5, 0x0EA7, [0x0EAA,0x0EAB], [0x0EAD,0x0EAE], 0x0EB0, [0x0EB2,0x0EB3], 0x0EBD,
  [0x0EC0,0x0EC4], [0x0F40,0x0F47], [0x0F49,0x0F69], [0x10A0,0x10C5], [0x10D0,0x10F6], 0x1100, [0x1102,0x1103],
  [0x1105,0x1107], 0x1109, [0x110B,0x110C], [0x110E,0x1112], 0x113C, 0x113E, 0x1140, 0x114C, 0x114E, 0x1150,
  [0x1154,0x1155], 0x1159, [0x115F,0x1161], 0x1163, 0x1165, 0x1167, 0x1169, [0x116D,0x116E], [0x1172,0x1173],
  0x1175, 0x119E, 0x11A8, 0x11AB, [0x11AE,0x11AF], [0x11B7,0x11B8], 0x11BA, [0x11BC,0x11C2], 0x11EB, 0x11F0,
  0x11F9, [0x1E00,0x1E9B], [0x1EA0,0x1EF9], [0x1F00,0x1F15], [0x1F18,0x1F1D], [0x1F20,0x1F45], [0x1F48,0x1F4D],
  [0x1F50,0x1F57], 0x1F59, 0x1F5B, 0x1F5D, [0x1F5F,0x1F7D], [0x1F80,0x1FB4], [0x1FB6,0x1FBC], 0x1FBE,
  [0x1FC2,0x1FC4], [0x1FC6,0x1FCC], [0x1FD0,0x1FD3], [0x1FD6,0x1FDB], [0x1FE0,0x1FEC], [0x1FF2,0x1FF4],
  [0x1FF6,0x1FFC], 0x2126, [0x212A,0x212B], 0x212E, [0x2180,0x2182], [0x3041,0x3094], [0x30A1,0x30FA],
  [0x3105,0x312C], [0xAC00,0xD7A3]);
my @ideographic_1_0 = ([0x4E00,0x9FA5], 0x3007, [0x3021,0x3029]);
my @combining_char_1_0 = (
  [0x0300,0x0345], [0x0360,0x0361], [0x0483,0x0486], [0x0591,0x05A1], [0x05A3,0x05B9], [0x05BB,0x05BD],
  0x05BF, [0x05C1,0x05C2], 0x05C4, [0x064B,0x0652], 0x0670, [0x06D6,0x06DC], [0x06DD,0x06DF], [0x06E0,0x06E4],
  [0x06E7,0x06E8], [0x06EA,0x06ED], [0x0901,0x0903], 0x093C, [0x093E,0x094C], 0x094D, [0x0951,0x0954],
  [0x0962,0x0963], [0x0981,0x0983], 0x09BC, 0x09BE, 0x09BF, [0x09C0,0x09C4], [0x09C7,0x09C8], [0x09CB,0x09CD],
  0x09D7, [0x09E2,0x09E3], 0x0A02, 0x0A3C, 0x0A3E, 0x0A3F, [0x0A40,0x0A42], [0x0A47,0x0A48], [0x0A4B,0x0A4D],
  [0x0A70,0x0A71], [0x0A81,0x0A83], 0x0ABC, [0x0ABE,0x0AC5], [0x0AC7,0x0AC9], [0x0ACB,0x0ACD], [0x0B01,0x0B03],
  0x0B3C, [0x0B3E,0x0B43], [0x0B47,0x0B48], [0x0B4B,0x0B4D], [0x0B56,0x0B57], [0x0B82,0x0B83], [0x0BBE,0x0BC2],
  [0x0BC6,0x0BC8], [0x0BCA,0x0BCD], 0x0BD7, [0x0C01,0x0C03], [0x0C3E,0x0C44], [0x0C46,0x0C48], [0x0C4A,0x0C4D],
  [0x0C55,0x0C56], [0x0C82,0x0C83], [0x0CBE,0x0CC4], [0x0CC6,0x0CC8], [0x0CCA,0x0CCD], [0x0CD5,0x0CD6],
  [0x0D02,0x0D03], [0x0D3E,0x0D43], [0x0D46,0x0D48], [0x0D4A,0x0D4D], 0x0D57, 0x0E31, [0x0E34,0x0E3A],
  [0x0E47,0x0E4E], 0x0EB1, [0x0EB4,0x0EB9], [0x0EBB,0x0EBC], [0x0EC8,0x0ECD], [0x0F18,0x0F19], 0x0F35,
  0x0F37, 0x0F39, 0x0F3E, 0x0F3F, [0x0F71,0x0F84], [0x0F86,0x0F8B], [0x0F90,0x0F95], 0x0F97, [0x0F99,0x0FAD],
  [0x0FB1,0x0FB7], 0x0FB9, [0x20D0,0x20DC], 0x20E1, [0x302A,0x302F], 0x3099, 0x309A);
my @digit_1_0 = (
  [0x0030,0x0039], [0x0660,0x0669], [0x06F0,0x06F9], [0x0966,0x096F], [0x09E6,0x09EF], [0x0A66,0x0A6F],
  [0x0AE6,0x0AEF], [0x0B66,0x0B6F], [0x0BE7,0x0BEF], [0x0C66,0x0C6F], [0x0CE6,0x0CEF], [0x0D66,0x0D6F],
  [0x0E50,0x0E59], [0x0ED0,0x0ED9], [0x0F20,0x0F29]);
my @extender_1_0 = (
  0x00B7, 0x02D0, 0x02D1, 0x0387, 0x0640, 0x0E46, 0x0EC6, 0x3005, [0x3031,0x3035], [0x309D,0x309E], [0x30FC,0x30FE]);
my @sname_1_1 = (
  "[:A-Z_a-z]", [0xC0,0xD6], [0xD8,0xF6], [0xF8,0x2FF], [0x370,0x37D], [0x37F,0x1FFF],
  [0x200C,0x200D], [0x2070,0x218F], [0x2C00,0x2FEF], [0x3001,0xD7FF], [0xF900,0xFDCF], [0xFDF0,0xFFFD], [0x10000,0xEFFFF]);

set("WHITE", @white);
set("NEW_LINE_1_0", 0xA, 0xD);
set("NEW_LINE_1_1", 0xA, 0xD, 0x85, 0x2028);
set("DIGIT", "[0-9]");
set("XDIGIT", "[0-9a-fA-F]");
set("VALID_1_0", @white, [0x20,0xD7FF], [0xE000,0xFFFD], [0x10000,0x10FFFF]);
set("VALID_1_1", [0x1,0xD7FF], [0xE000,0xFFFD], [0x10000,0x10FFFF]);
set("UNRESTRICTED_1_1", @white, [0x20,0x7E], 0x85, [0xA0,0xD7FF], [0xE000,0xFFFD], [0x10000,0x10FFFF]);
set("PUBID", 0x20, 0xD, 0xA, "[-a-zA-Z0-9'()+,./:=?:!*#@\$_%]");
set("ENC_SNAME", "[a-zA-Z]");
set("ENC_NAME", "[-a-zA-Z0-9._]");
set("SNAME_1_0", "[_:]", @base_char_1_0, @ideographic_1_0);
set("NAME_1_0", "[-_:.]", @base_char_1_0, @ideographic_1_0, @combining_char_1_0, @digit_1_0, @extender_1_0);
set("SNAME_1_1", @sname_1_1);
set("NAME_1_1", @sname_1_1, "[-.0-9]", 0xB7, [0x0300,0x036F], [0x203F,0x2040]);
set("GT", "[>]");

($ARGV[0] eq "" || $ARGV[1] eq "") && die("Invalid usage");
find_cls();
open(H, ">", $ARGV[0]) or die("Cannot create $ARGV[0]");
open(C, ">", $ARGV[1]) or die("Cannot create $ARGV[1]");
gen_enum();
gen_tabs();
close(H);
close(C);

sub set {
  my $id = shift;
  $ids{$id} = scalar keys(%ids) if !defined($ids{$id});
  my $mask = 1 << $ids{$id};
  foreach my $i (@_) {
    if (ref($i) eq "ARRAY") {
      my $j = $i->[0];
      for (; $j <= $i->[1] && $j < 0x10000; $j++) { $cat[$j] |= $mask; }
      for (; $j <= $i->[1]; $j += 0x10000) { $lcat[$j >> 16] |= $mask; }
    }
    elsif ($i =~ /^\[/) { for (my $j=0; $j < 128; $j++) { if (chr($j) =~ /$i/) { $cat[$j] |= $mask; } } }
    else { $cat[$i] |= $mask; }
  }
}

sub find_cls {
  foreach (my $i=0; $i<@cat; $i++) { $cls{$cat[$i]} = scalar keys(%cls) if !defined($cls{$cat[$i]}); }
  foreach (my $i=0; $i<@lcat; $i++) { $cls{$lcat[$i]} = scalar keys(%cls) if !defined($cls{$lcat[$i]}); }
}

sub gen_enum {
  print H "enum xml_char_type {\n";
  foreach my $id (sort keys %ids) {
    my $mask = 0;
    foreach my $i (keys %cls) {
      $mask |= 1 << $cls{$i} if $cls{$i} && ($i & (1 << $ids{$id}));
    }
    printf H "  XML_CHAR_%-20s = 0x%08x,\n", $id, $mask;
  }
  print H "};\n\n";
}

sub gen_tabs {
  my @tab = ();
  my %hash = ();

  print H "extern const byte ucw_xml_char_tab1[];\n";
  print H "extern const uint ucw_xml_char_tab2[];\n";
  print H "extern const byte ucw_xml_char_tab3[];\n";

  print C "const uint ucw_xml_char_tab2[] = {\n  ";
  for (my $t=0; $t<256; $t++) {
    my $i = $t * 256;
    my @x = ();
    for (my $j=0; $j<256; $j += 32) {
      push @x, join(",", map($cls{$_}, @cat[$i+$j..$i+$j+31]));
    }
    my $sub = "  " . join(",\n  ", @x);
    if (!defined($hash{$sub})) {
      $hash{$sub} = 256 * scalar @tab;
      push @tab, $sub;
    }
    printf C "0x%x", $hash{$sub};
    print C ((~$t & 15) ? "," : ($t < 255) ? ",\n  " : "\n};\n\n");
  }

  print C "const byte ucw_xml_char_tab1[] = {\n";
  print C join(",\n\n", @tab);
  print C "\n};\n\n";

  my @l = ();
  for (my $i=0; $i<0x11; $i++) {
    push @l, sprintf("%d", $cls{$lcat[$i]});
  }
  print C "const byte ucw_xml_char_tab3[] = {" . join(",", @l) . "};\n";
}