/usr/lib/x86_64-linux-gnu/perl5/5.20/Unicode/Map.pm is in libunicode-map-perl 0.112-11+b1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 | #
# $Id$
#
# Unicode::Map 0.112
#
# Documentation at end of file.
#
# Copyright (C) 1998, 1999, 2000 Martin Schwartz. All rights reserved.
# This program is free software; you can redistribute it and/or
# modify it under the same terms as Perl itself.
#
# Contact: Martin Schwartz <martin@nacho.de>
#
package Unicode::Map;
use strict;
use vars qw($VERSION $WARNINGS @ISA $DEBUG);
use Carp;
$VERSION='0.112'; # Michael Changes it to 0.112
require DynaLoader; @ISA=qw(DynaLoader);
bootstrap Unicode::Map $VERSION;
sub NOISE () { 1 }
sub MAGIC () { 0xB827 } # magic word
sub M_END () { 0 } # end
sub M_INF () { 1 } # infinite subsequent entries (default)
sub M_BYTE () { 2 } # 1..255 subsequent entries
sub M_VER () { 4 } # (Internal) file format revision.
sub M_AKV () { 6 } # key1, val1, key2, val2, ... (default)
sub M_AKAV () { 7 } # key1, key2, ..., val1, val2, ...
sub M_PKV () { 8 } # partial key value mappings
sub M_CKn () { 10 } # compress keys not
sub M_CK () { 11 } # compress keys (default)
sub M_CVn () { 13 } # compress values not
sub M_CV () { 14 } # compress values (default)
##
## The next entries are for info, only. They are stored as unicode strings.
##
sub I_NAME () { 20 } # Character Set Name
sub I_ALIAS () { 21 } # Character Set alias name (several entries allowed)
sub I_VER () { 22 } # Mapfile revision
sub I_AUTH () { 23 } # Mapfile authRess
sub I_INFO () { 24 } # Some userEss definable string
sub WARN_DEFAULT () { 0x0000 };
sub WARN_DEPRECATION () { 0x1000 };
sub WARN_COMPATIBILITY () { 0x2000 };
##
## --- Init ---------------------------------------------------------------
##
my $MAP_Pathname = 'Unicode/Map';
my $MAP_Path = $INC{"Unicode/Map.pm"}; $MAP_Path=~s/\.pm//;
die "Can't find base directory of Unicode::Map!" unless $MAP_Path;
my @order = (
{ 1=>"C", 2=>"n", 3=>"N", 4=>"N" }, # standard ("Network order")
{ 1=>"C", 2=>"v", 3=>"V", 4=>"V" }, # reverse ("Vax order")
);
my %registry = ();
my %mappings = ();
my $registry_loaded = 0;
$WARNINGS = WARN_DEFAULT;
_init_registry();
##
## --- public conversion methods ------------------------------------------
##
# For compatibility with Unicode::Map8
sub to8 { goto &from_unicode }
sub from_unicode {
my $S = shift;
if ( $#_==0 ) {
$S -> _to ("TO_CUS", $S->_csid(), @_);
} else {
_deprecated ( );
_incompatible ( );
$S -> _to ("TO_CUS", @_);
}
}
sub new {
#
# $ref||undef = Unicode::Map->new("ISO-8859-1")
#
# Note: usage like below is deprecated. It is not compatible with
# Unicode::Map8. Support will vanish soon! martin [2000-Jun-19]
#
# I<$Map> = new Unicode::Map;
#
# I<$utf16> = I<$Map> -> to_unicode ("ISO-8859-1", "Hello world!");
# => $_16bit == "\0H\0e\0l\0l\0o\0 \0w\0o\0r\0l\0d\0!"
#
# I<$locale> = I<$Map> -> from_unicode ("ISO-8859-7", I<$_16bit>);
# => $_8bit == "Hello world!"
my ($proto, $parH) = @_;
my $S = bless ({}, ref($proto) || $proto);
$S -> _noise ( NOISE );
return unless $S -> _load_registry ( );
if (!$parH) {
_deprecated ( );
} else {
my $csid;
if (!ref($parH)) {
# Compatible to Unicode::Map8
$csid = $parH;
} else {
_deprecated ( );
_incompatible ( );
if ( $parH->{"STARTUP"} ) {
$S -> Startup ( $parH->{"STARTUP"} );
}
$csid = $parH -> { "ID" };
}
if ( $csid ) {
return 0 unless $S -> _csid ( $S->_real_id($csid) )
}
}
$S;
}
# Deprecated!
sub noise {
_deprecated ( );
_incompatible ( );
# Defines the verbosity of messages to user sent via I<$Startup>. Can be no
# messages at all (n=0), some information (n=1) or some more information
# (n=3). Default is n=1.
# I<$Map> -> noise (I<$n>)
_noise ( @_ );
}
sub _noise { shift->_member("P_NOISE", @_) }
#
# Unicode::Map.xs -> reverse_unicode
#
# Usage is deprecated! Use Unicode::String::byteswap instead!
#
# I<$string> = I<$Map> -> reverse_unicode (I<$string>)
#
# One Unicode character, precise one utf16 character, consists of two
# bytes. Therefore it is important, in which order these bytes are stored.
# As far as I could figure out, Unicode characters are assumed to be in
# "Network order" (0x1234 => 0x12, 0x34). Alas, many PC Windows documents
# store Unicode characters internally in "Vax order" (0x1234 => 0x34, 0x12).
# With this method you can convert "Vax mode" -> "Network mode" and vice versa.
#
# reverse_unicode changes the original variable if in a void context. If
# in scalar or list context returns a new created string.
#
sub reverse_unicode {
_deprecated ( "see: Unicode::String::byteswap" );
_incompatible ( );
&_reverse_unicode;
}
# For compatibility with Unicode::Map8
sub to16 { goto &to_unicode }
sub to_unicode {
my $S = shift;
if ( $#_==0 ) {
$S -> _to ("TO_UNI", $S->_csid(), @_);
} else {
_deprecated ( );
_incompatible ( );
$S -> _to ("TO_UNI", @_);
}
}
##
## --- public maintainance methods ----------------------------------------
##
sub alias {
_incompatible ( );
@{$registry{$_[1]} -> {"ALIAS"}};
}
sub dest {
_deprecated ( "'dest' is now 'mapping'" );
goto &mapping;
}
sub mapping {
_incompatible ( );
return shift -> _mapping ( shift() );
}
sub id {
_incompatible ( );
shift->_real_id(shift());
}
sub ids {
_incompatible ( );
(sort {$a cmp $b} grep {!/^GENERIC$/i} keys %registry);
}
sub info {
_incompatible ( );
$registry{$_[1]} -> {"INFO"};
}
sub read_text_mapping {
_incompatible ( );
my ($S, $csid, $textpath, $style) = @_;
return 0 if !($csid = $S->id($csid));
$S->_msg("reading") if $S->_noise>0;
$S->_read_text_mapping($csid, $textpath, $style);
}
sub src {
_incompatible ( );
$registry{$_[1]} -> {"SRC"};
}
sub srcURL {
_incompatible ( );
$registry{$_[1]} -> {"SRCURL"};
}
sub style {
_incompatible ( );
$registry{$_[1]} -> {"STYLE"};
}
sub write_binary_mapping {
_incompatible ( );
my ($S, $csid, $binpath) = @_;
return 0 unless ( $csid = $S->id($csid) );
$binpath = $S->_mapping($csid) if !$binpath;
return 0 unless $binpath;
$S->_msg("writing") if $S->_noise>0;
$S->_write_IMap_to_binary($csid, $binpath);
}
##
## --- Application program interface --------------------------------------
##
sub Startup {
_deprecated ( "module Startup shouldn't be used any longer" );
shift->_member("STARTUP", @_);
}
##
## --- private methods ----------------------------------------------------
##
sub _member { my $S=shift; my $n=shift if @_; $S->{$n}=shift if @_; $S->{$n}}
sub _csid { shift->_member("P_CSID", @_) }
sub _error { my $S=shift; $S->Startup ? $S->Startup->error(@_) : 0 }
sub _msg { my $S=shift; $S->Startup ? $S->Startup->msg(@_) : 0 }
sub _msg_fin { my $S=shift; $S->Startup ? $S->Startup->msg_finish(@_) : 0 }
sub _IMap { shift->_member("I", @_) }
sub _mapping { $registry{$_[1]} -> {"MAP"} }
sub _dump {
my $S = shift;
print "Dumping Mapping $S:\n";
if ($S->Startup) {
print " - Startup object: ".$S->Startup."\n";
} else {
print " - no Startup object\n";
}
if (%registry) {
print " - Mapping: " . (keys %registry) . " entries defined.\n";
} else {
print " - No mappings!\n";
}
if ($S->_IMap) {
print " - IMap:\n";
my ($k,$v); while(($k,$v)=each %{$S->_IMap}) {
printf " %10s => %s\n", $k, $v;
}
}
if (%mappings) {
print " - Mappings:\n";
my ($k,$v); while(($k,$v)=each %mappings) {
printf " %10s => %s\n", $k, $v;
}
}
1}
sub _real_id {
my ($S, $csid) = @_;
if (!%registry) {
return $S->_error("No mapping definitions!\n");
}
return $csid if defined $registry{$csid};
my $id="";
my (@tmp, $k, $v);
while (($k,$v) = each %registry) {
next if !$k || !$v;
if ($csid =~ /^$k$/i) {
$id=$k; last;
} else {
for (@{$v->{"ALIAS"}}) {
if (/^$csid$/i) {
$id=$k; last;
}
}
}
}
while (($k, $v) = each %registry) {}
return $S->_error("Character Set $csid not defined!") if !$id;
$id;
}
sub _to {
#
# 1||0 = $S -> _to ("TO_UNI"||"TO_CUS", $csid, $src||$srcR, $destR, $o, $l)
# $text||"" = $S -> _to ("TO_UNI"||"TO_CUS", $csid, $src||$srcR, "", $o, $l)
#
my ($S, $to, $csid, $srcR, $destR, $o, $l) = @_;
return 0 if !($csid = $S->_real_id($csid));
return 0 if !$S->_load_TMap($csid);
my ($cs1, $n1, $cs2, $n2, $tmp) = (0, 0, 0, 0, "");
my (@M, @C);
my $destbuf = "";
my $srcbuf = ref($srcR) ? $$srcR : $srcR;
my $C = $mappings{$csid}->{$to};
if ($S->_noise>2) {
$S->_msg("mapping ".(($to=~/^to_unicode$/i) ? "to Unicode" : "to $csid"));
}
my ($csa,$na,$csb,$nb);
my @n = sort {
# Sort the partial mappings according to their left side's total
# length, descending order.
($csa, $na) = split/,/,$a;
($csb, $nb) = split/,/,$b;
$csb*$nb <=> $csa*$na
} keys %$C;
if ($#n==0) {
($cs1, $n1, $cs2, $n2) = split /,/,$n[0];
$destbuf = $S->_map_hash($srcbuf,
$C->{$n[0]},
$n1*$cs1,
$o||undef, $l||undef
);
} else {
$destbuf = $S->_map_hashlist($srcbuf,
[map $C->{$_}, @n],
[map {($cs1,$n1)=split/,/; int($cs1*$n1)} @n],
$o, $l
);
}
if ($destR) {
$$destR=$destbuf; 1;
} else {
$destbuf;
}
}
sub _init_registry {
%registry = ();
$registry_loaded = 0;
_add_registry_entry("GENERIC", "GENERIC", "GENERIC");
1}
sub _unload_registry {
_init_registry;
}
##
## --- Binary to TMap -----------------------------------------------------
##
# TMap structure:
#
# %T = (
# $CSID => {
# TO_CUS => {
# "$cs_a1,$n_a1,$cs_a2,$n_a2" => {
# "str_a1_1" => "str_a2_1", ... ,
# "str_a1_n" => "str_a2_n",
# }, ... ,
# "$cs_x1,$n_x1,$cs_x2,$n_x2" => {
# "str_x1_1" => "str_x2_1", ... ,
# "str_x1_n" => "str_x2_n",
# }
# }
# TO_UNI => {
# "$cs_a2,$n_a2,$cs_a1,$n_a1" => {
# "str_a2_1" => "str_a1_1", ... ,
# "str_a2_n" => "str_a1_n",
# }, ... ,
# "$csx2,$nx2,$csx1,$nx1" => {
# "str_x2_1" => "str_x1_1", ... ,
# "str_x2_n" => "str_x1_n",
# }
# }
# }
# );
sub _load_TMap {
my ($S, $csid) = @_;
return 1 if $mappings{$csid};
return 0 if !$S->_read_binary_to_TMap($csid);
1}
sub _read_binary_to_TMap {
my ($S, $csid) = @_;
my %U = ();
my %C = ();
my $buf = "";
#
# read file
#
my $file = $S->_mapping($csid);
return $S->_error ("Cannot find mapping file for id \"$csid\"!")
unless -f $file
;
return $S->_error ("Cannot open binary mapping \"$file\"!")
if !open(MAP1, $file)
;
binmode MAP1;
my $size = read MAP1, $buf, -s $file;
close MAP1;
return $S->_error ("Error while reading mapping \"$file\"!")
if ($size != -s $file)
;
if ($size>0x1000) {
$S->_msg("loading mapfile \"$csid\"") if $S->_noise>0;
} else {
$S->_msg("loading mapfile \"$csid\"") if $S->_noise>2;
}
return $S->_error ("Error in binary map file!\n")
if !$S->_read_binary_mapping($buf, 0, \%U, \%C)
;
if ($size>0x1000) {
$S->_msg("loaded") if $S->_noise>0;
} else {
$S->_msg("loaded") if $S->_noise>2;
}
$mappings{$csid} = {
TO_CUS => \%C,
TO_UNI => \%U
};
# $S->_dump_TMap ($mappings{$csid});
1}
sub _dump_TMap {
my ($S, $TMap) = @_;
print "\nDumping TMap $TMap\n";
my ($pat1, $pat2, $up1, $up2);
foreach (keys %$TMap) {
my $subTMap = $TMap->{$_};
print "SubTMap $_:\n";
my @n = sort {(split/,/,$b)[0] <=> (split/,/,$a)[0]} keys %$subTMap;
for (@n) {
my ($cs1, $n1, $cs2, $n2) = split /,/;
print " Submapping $cs1 bytes ($n1 times) => "
."$cs2 bytes ($n2 times):\n"
;
my $s="";
$pat1 = ("%0".($cs1*2)."x ") x $n1;
$pat2 = ("%0".($cs2*2)."x ") x $n2;
$up1 = ($order[0]->{$cs1}).$n1;
$up2 = ($order[0]->{$cs2}).$n2;
my $subsubTMap = $subTMap->{$_};
for (sort keys %$subsubTMap) {
printf " $pat1 => $pat2\n",
unpack($up1, $_),
unpack($up2, $subsubTMap->{$_})
;
}
}
}
print "Dumping done.\n\n";
}
##
## --- Text (Unicode, Keld) to IMap ---------------------------------------
##
sub _read_text_mapping {
my ($S, $id, $path, $style) = @_;
$S->_IMap({}) if !defined $S->_IMap;
return $S->_error("Bad charset id") if (!$id || !$registry{$id});
if ($style =~ /^keld$/i) {
$S->_read_text_keld_to_IMap($id, $path);
} elsif ($style =~ /^reverse$/i) {
$S->_read_text_unicode_to_IMap($id, $path, 2, 1);
} elsif (!$style || $style=~/^unicode$/i) {
$S->_read_text_unicode_to_IMap($id, $path, 1, 2);
} else {
my ($vendor, $unicode) = ($style =~ /^\s*(\d+)\s+(\d+)/);
if ($vendor && $unicode) {
$S->_read_text_unicode_to_IMap($id, $path, $vendor, $unicode);
} else {
return $S->_error("Unknown style '$style'");
}
}
}
sub _read_text_keld_to_IMap {
my ($S, $csid, $path) = @_;
my %U = ();
my ($k, $v);
my $com = ""; my $esc = "";
return 0 unless my @file = $S -> readTextFile ( $path );
while ( @file ) {
$_ = shift ( @file );
s/$com.*// if $com;
s/^\s+//; s/\s+$//; next if !$_;
last if /^CHARMAP/i;
($k, $v) = split /\s+/,$_,2;
if ($k =~ /<comment_char>/i) { $com = $v; next }
if ($k =~ /<escape_char>/i) { $esc = $v; next }
}
my (@l, $f, $t);
my $escx = $esc."x";
while ( @file ) {
$_ = shift ( @file );
s/$com.*// if $com;
next if ! /$escx([^\s]+)\s+<U([^>]+)/;
$U{length($1)*4}->{hex($1)} = hex($2);
}
# $S->_dump_IMap(\%U);
$S->_IMap->{$csid} = \%U;
1}
sub readTextFile {
my ( $S, $filePath ) = @_;
local $/;
return $S->_error ( "No text file specified!" ) unless $filePath;
return $S->_error ( "Can't find text file \"$filePath\"!" )
unless -f $filePath
;
return $S->_error ( "Cannot open text file \"$filePath\"!" )
unless open ( FILE, $filePath )
;
undef $/; my $file = <FILE>;
close FILE or warn ( "Oops: can't close file '$filePath'! ($!)" );
return map "$_\n", split /\r\n|\r|\n/, $file;
}
sub _read_text_unicode_to_IMap {
#
# Converts map files like created by Unicode Inc. to IMap
#
no strict;
my ($S, $csid, $file, $row_vendor, $row_unicode) = @_;
my %U = ();
return 0 unless my @file = $S -> readTextFile ( $file );
my (@l, $f, $t);
my $hex = '(?:0x)?([^\s]+)\s+';
my $hexgap = '(?:0x)?[^\s]+\s+';
my ($min, $max) = ($row_vendor, $row_unicode);
($min, $max) = ($row_unicode, $row_vendor) if $row_unicode<$row_vendor;
my $gap1 = $hexgap x ($min - 1);
my $gap2 = $hexgap x ($max - $min - 1);
if ($row_vendor > $row_unicode) {
$row_unicode=1; $row_vendor=2;
} else {
$row_unicode=2; $row_vendor=1;
}
# Info fields in comments: (at this release still unused)
my $Name = "";
my $Unicode_version = "";
my $Table_version = "";
my $Date = "";
my $Authresses = "";
my $comment_info = 1; my $comment_authress=0;
while( @file ) {
$_ = shift ( @file );
if ($comment_info && !/#/) {
$comment_info = 0;
}
if ($comment_info) {
if ($comment_authress && (/^#\s*$/ || /^#[^:]:/)) {
$comment_authress = 0;
}
if (/#\s*name\S*:\s*(.*$)/i) {
$Name = $1;
}
if (/#\s*unicode\s*version\S*:\s*(.*$)/i) {
$Unicode_version = $1;
}
if (/#\s*table\s*version\S*:\s*(.*$)/i) {
$Table_version = $1;
}
if (/#\s*date\S*:\s*(.*$)/i) {
$Date = $1;
}
if ($comment_authress) {
$Authresses .= ", $1" if /^#\s*(.+$)/;
} elsif (/#\s*Author\S*:\s*(.*$)/i) {
$Authresses = $1; $comment_authress=1;
}
}
s/#.*$//;
next if !$_;
next if ! /^$gap1$hex$gap2$hex/i;
($f, $t) = ($$row_vendor, $$row_unicode);
$f =~ s/0x//ig;
$t =~ s/0x//ig;
if ( index($f,"+")>=0 ) {
# The left side contains one or more "+". Handling this way:
# The key becomes an 8 bit string.
$f =~ s/\s*\+\s*//g;
my $fs = pack ( "H*", $f );
if (index($t, "+")<0) {
my $list = "8,".length($fs);
$U { $list } -> { $fs } = hex ( $t );
} else {
@l = map hex($_), split /\+/, $t;
my $list = "8,".length($fs).",".($#l+1);
$U { $list } -> { $fs } = [@l];
}
} else {
if (index($t, "+")<0) {
$U{length($f)*4}->{hex($f)} = hex($t);
} else {
@l = map hex($_), split /\+/, $t;
$U{(length($f)*4).",1,".($#l+1)}->{hex($f)} = [@l];
}
}
}
# $S->_dump_IMap(\%U);
$S->_IMap->{$csid} = \%U;
1}
sub _dump_IMap {
#
# Dump IMap
#
my ($S, $U) = @_;
print "\nDumping IMap entry.\n";
my ($U1, @list);
for (keys %{$U}) {
my $size = $_ / 4;
$U1 = $U->{$_};
for (sort {$a <=> $b} keys %{$U1}) {
printf ((" %0$size"."x => "), $_);
if (ref($U1->{$_})) {
@list = @{$U1->{$_}};
printf "(".("%04x " x ($#list+1)).")\n", @list;
} else {
printf "%04x\n", $U1->{$_};
}
}
}
1}
##
## --- IMap to binary -----------------------------------------------------
##
sub _write_IMap_to_binary {
my ($S, $csid, $path) = @_;
return $S->_error("Integer Map \"$csid\" not loaded!\n")
if !(my $IMap = $S->_IMap->{$csid})
;
return $S->_error("Cannot open output table \"$path\"!")
if !open (MAP4, ">$path");
;
binmode MAP4;
my $str = "";
$str .= _map_binary_begin();
$str .= _map_binary_stream(I_NAME, $S->_to_unicode($csid));
$str .= _map_binary_mode(M_BYTE);
$str .= _map_binary_mode(M_PKV);
my ($from, $from_n, $to_n);
for (keys %{$IMap}) {
($from, $from_n, $to_n) = split /\s*,\s*/;
my $subMapping = $S->_map_binary_submapping (
$IMap->{$_}, $from, $from_n||1, 16, $to_n||1
);
return 0 unless $subMapping;
$str .= $subMapping;
}
$str .= _map_binary_mode(M_END);
print MAP4 "$str";
close (MAP4);
1}
sub _to_unicode {
my ($S, $txt) = @_;
$S -> to_unicode ($ENV{LC_CTYPE}, \$txt);
}
sub _map_binary_begin {
pack($order[0]->{2}, MAGIC);
}
sub _map_binary_end {
pack("C", M_END);
}
sub _map_binary_submapping {
my ($S, $mapH, $size1, $n1, $size2, $n2) = @_;
return $S->_error ("No IMap specified!") if (!$mapH || !%$mapH);
if ($n2*$size2>0xffff) {
return $S->_error ("Bad n character mapping! Too many chars!");
}
my $bs1S = $order[0]->{int(($size1+7)/8)};
my $bs2S = $order[0]->{int(($size2+7)/8)}.$n2;
return $S->_error ("'From' characters have zero size!") if !$bs1S;
my $str = "";
my $sig = pack ("C4", ($size1, $n1, $size2, $n2));
my @key;
if ( $n1==1 ) {
@key = sort {$a <=> $b} keys %$mapH;
} else {
@key = sort keys %$mapH;
}
my @val = map $mapH->{$_}, @key;
my $max = $#key;
if ($n1>1) {
$str .= _map_binary_mode(M_AKV);
$str .= _map_binary_mode(M_BYTE);
$str .= $sig;
my $n = 0;
while ( @key ) {
if ( $n==0 ) {
$n = $#key + 1;
if ( $n>255 ) {
$n = 255;
}
$str .= pack ( "C", $n );
}
$str .= shift ( @key );
my $val = shift ( @val );
if ( $n2==1 ) {
$str .= pack ( $bs2S, $val );
} else {
$str .= pack ( $bs2S, @$val );
}
$n--;
}
} else {
my ($kkey, $kbegin, $kend, $kn, $vkey, $vbegin, $vend, $vn);
if ($n2==1) {
$str .= _map_binary_mode(M_PKV);
$str .= $sig;
$kkey = _list_to_intervals(\@key, 0, $#key);
while (@$kkey) {
$kbegin = shift(@$kkey);
$kend = shift(@$kkey);
#print "kbegin=$kbegin kend=$kend klen=".($kend-$kbegin+1)."\n";
$str .= pack("C", $kend-$kbegin+1);
$str .= pack($bs1S, $key[$kbegin]);
$vkey = _list_to_intervals(\@val, $kbegin, $kend);
while (@$vkey) {
$vbegin = shift (@$vkey);
$vend = shift (@$vkey);
$str .= pack("C", $vend-$vbegin+1);
$str .= pack($bs2S, $val[$vbegin]);
}
}
} else {
$str .= _map_binary_mode(M_CVn);
$str .= $sig;
$kkey = _list_to_intervals(\@key, 0, $#key);
while (@$kkey) {
$kbegin = shift(@$kkey);
$kend = shift(@$kkey);
$str .= pack("C", $kend-$kbegin+1);
$str .= pack($bs1S, $key[$kbegin]);
for ($kbegin..$kend) {
$str .= pack($bs2S, @{$val[$_]});
}
}
}
}
$str .= _map_binary_mode(M_END);
$str;
}
sub _map_binary_mode {
my ($mode) = @_;
return "\0".pack("C", $mode)."\0";
}
sub _map_binary_stream {
my ($mode, $str) = @_;
if (length($str) > 255) {
$str = substr($str, 0, 255);
}
my $len = length($str);
return "\0".pack("C2", $mode, $len).$str;
}
##
## --- registry file -------------------------------------------------------
##
#
# Registry entries:
# ALIAS => [a list of equivalent charset ids]
# INFO => some occult information about this charset
# MAP => the path to the binary mapfile of this charset
# SRC => the path to the textual mapfile of this charset
# SRCURL => an URL where to get the textual mapfile of this charset
# STYLE => describes what type of textual mapfile this is
#
# Registry example:
# registry = (
# "ISO-8859-3" => {
# "ALIAS" => ["ISO-IR-109","ISO_8859-3:1988","LATIN3","L3"],
# "INFO" => "",
# "MAP" => "/usr/lib/perl5/.../Unicode/Map/ISO/8859-3.map",
# "SRC" => "/usr/local/Unicode/ISO8859/8859-3.TXT",
# "SRCURL" => "ftp://ftp.unicode.org/MAPPINGS/ISO8859/8859-3.TXT",
# "STYLE" => "",
# }
# )
#
sub _load_registry {
#
# The REGISTRY loaded once and reused later. Runtime modifications of
# REGISTRY will remain unnoticed!
#
return 1 if $registry_loaded;
my ($S) = @_;
$S->_msg("loading unicode registry") if $S->_noise>2;
my $path = $S -> _get_path ( "REGISTRY" );
return 0 unless my @file = $S -> readTextFile ( $path );
my %var = ();
my ($k, $v);
while ( @file ) {
$_ = shift ( @file );
# Skip everything until DEFINE marker...
s/#.*//; s/^\s+//; s/\s+$//; next if !$_;
last if /^DEFINE:/i;
}
while ( @file ) {
$_ = shift ( @file );
s/#.*//; s/^\s+//; s/\s+$//; next if !$_;
last if /^DATA:/i;
($k, $v) = split /\s*[= ]\s*/,$_,2;
$k=~s/^\$//; $v=~s/^"(.*)"$/$1/;
if ( defined $ENV{$k} ) {
# User environment overrides file settings.
$v = $ENV { $k };
} else {
if ($v!~s/^'(.*)'$/$1/) {
my @check;
# parse environment
@check=(); while ($v=~/\$(\w+|\$)/g) { push (@check, $1) }
for (@check) {
if ( defined $ENV{$_} ) {
# User environment has ranges before registry and magics.
$v =~ s/\$$_/$ENV{$_}/g
} elsif ( $_ eq '$' ) {
# Magic value $$
$v =~ s/\$\$/$MAP_Path/;
} elsif ( defined $var{$_} ) {
# Apply registry variables
$v =~ s/\$$_/$var{$_}/g
} else {
# Error, undefined value!
warn ("Error in file REGISTRY: Variable '$_' not defined!");
return 0;
}
}
# parse home tilde
if (($v eq '~') || ($v=~/^~\//)) {
$v =~ s/^~/_getHomeDir()/e;
}
}
}
$var{$k} = $v;
}
my ($name, $map, $src, $srcURL, $style, @alias, $info);
my %arg_s = (
"name"=>\$name, "map"=>\$map, "src"=>\$src, "srcurl"=>\$srcURL,
"style"=>\$style, "info"=>\$info
);
my %arg_a = ("alias"=>\@alias);
$name=""; $map=""; $src=""; $srcURL=""; $style=""; @alias=(); $info="";
while ( @file ) {
$_ = shift ( @file );
s/#.*//; s/^\s+//; s/\s+$//;
if (!$_) {
$S->_add_registry_entry (
$name, $src, $map, $srcURL, $style, \@alias, $info
) if $name;
$name=""; $map=""; $src=""; $srcURL=""; $style=""; @alias=();
$info=""; next;
}
($k, $v) = split /\s*[: ]\s*/,$_,2;
for (keys %var) {
$v =~ s/\$$_/$var{$_}/g;
}
$k = lc($k);
if ($arg_s{$k}) {
${$arg_s{$k}} = $v;
} elsif ($arg_a{$k}) {
push (@{$arg_a{$k}}, $v);
}
}
$S->_msg_fin("done") if $S->_noise>2;
$registry_loaded=1;
1}
sub _getHomeDir {
$ENV{HOME}
|| eval ( '(getpwuid($<))[7]' ) # for systems not supporting getpwuid
|| "/";
}
sub _add_registry_entry {
my ($S, $name, $src, $map, $srcURL, $style, $aliasL, $info) = @_;
$registry{$name} = {
"ALIAS" => $aliasL ? [@$aliasL] : [],
"MAP" => $map || "",
"INFO" => $info || "",
"SRC" => $src || "",
"SRCURL" => $srcURL || "",
"STYLE" => $style || "",
};
}
sub _dump_registry {
my ($k, $v);
print "\nDumping registry definition:\n";
while (($k, $v) = each %registry) {
print "Name: $k\n";
printf " src: %s\n", $v->{"SRC"};
printf " srcURL: %s\n", $v->{"SRC"};
printf " style: %s\n", $v->{"STYLE"};
printf " map: %s\n", $v->{"MAP"};
printf " info: %s\n", $v->{"INFO"};
print " alias: " . join (", ", @{$v->{"ALIAS"}}) . "\n";
print "\n";
}
print "done.\n";
}
##
## --- misc ---------------------------------------------------------------
##
sub _get_path {
my ($S, $path) = @_;
return $S->_error("Cannot find mapfile base directory!") if !$MAP_Path;
$path =~ s/^\/+//;
return "$MAP_Path/$path";
}
sub _list_to_intervals {
my ($listR, $start, $end) = @_;
my @split = ();
my ($begin, $i, $partend);
$i=$start;
while ($i<=$end) {
$begin = $i;
$partend = $begin+254;
while (
($i<$end) &&
($i<$partend) &&
($listR->[$i+1]==($listR->[$i]+1))
) {
$i++
}
push (@split, ($begin, $i));
$i++;
}
\@split;
}
sub _deprecated {
my ( $msg ) = @_;
if ( $WARNINGS & WARN_DEPRECATION ) {
my $s = "Deprecated usage!";
$s .= " ($msg)" if $msg;
carp ( $s );
}
1}
sub _incompatible {
my ( $msg ) = @_;
if ( $WARNINGS & WARN_COMPATIBILITY ) {
my $s = "Incompatible usage!";
$s .= " ($msg)" if $msg;
carp ( $s );
}
1}
"Atomkraft? Nein, danke!"
__END__
=head1 NAME
Unicode::Map V0.112 - maps charsets from and to utf16 unicode
=head1 SYNOPSIS
=over 4
use Unicode::Map();
I<$Map> = new Unicode::Map("ISO-8859-1");
I<$utf16> = I<$Map> -> to_unicode ("Hello world!");
=> $utf16 == "\0H\0e\0l\0l\0o\0 \0w\0o\0r\0l\0d\0!"
I<$locale> = I<$Map> -> from_unicode (I<$utf16>);
=> $locale == "Hello world!"
=back
A more detailed description below.
2do: short note about perl's Unicode perspectives.
=head1 DESCRIPTION
This module converts strings from and to 2-byte Unicode UCS2 format.
All mappings happen via 2 byte UTF16 encodings, not via 1 byte UTF8
encoding. To transform these use Unicode::String.
For historical reasons this module coexists with Unicode::Map8.
Please use Unicode::Map8 unless you need to care for two byte character
sets, e.g. chinese GB2312. Anyway, if you stick to the basic
functionality (see documentation) you can use both modules equivalently.
Practically this module will disappear from earth sooner or later as
Unicode mapping support needs somehow to get into perl's core. If you
like to work on this field please don't hesitate contacting Gisle Aas!
This module can't deal directly with utf8. Use Unicode::String to convert
utf8 to utf16 and vice versa.
Character mapping is according to the data of binary mapfiles in Unicode::Map
hierarchy. Binary mapfiles can also be created with this module, enabling you
to install own specific character sets. Refer to mkmapfile or file REGISTRY in the Unicode::Map hierarchy.
=head1 CONVERSION METHODS
Probably these are the only methods you will need from this module. Their
usage is compatible with Unicode::Map8.
=over 4
=item new
I<$Map> = new Unicode::Map("GB2312-80")
Returns a new Map object for GB2312-80 encoding.
=item from_unicode
I<$dest> = I<$Map> -> from_unicode (I<$src>)
Creates a string in locale charset representation from utf16 encoded
string I<$src>.
=item to_unicode
I<$dest> = I<$Map> -> to_unicode (I<$src>)
Creates a string in utf16 representation from I<$src>.
=item to8
Alias for I<from_unicode>. For compatibility with Unicode::Map8
=item to16
Alias for I<to_unicode>. For compatibility with Unicode::Map8
=back
=head1 WARNINGS
You can demand Unicode::Map to issue warnings at deprecated or incompatible
usage with the constants WARN_DEFAULT, WARN_DEPRECATION or WARN_COMPATIBILITY.
The latter both can be ored together.
=over 4
=item No special warnings:
$Unicode::Map::WARNINGS = Unicode::Map::WARN_DEFAULT
=item Warnings for deprecated usage:
$Unicode::Map::WARNINGS = Unicode::Map::WARN_DEPRECATION
=item Warnings for incompatible usage:
$Unicode::Map::WARNINGS = Unicode::Map::WARN_COMPATIBILITY
=back
=head1 MAINTAINANCE METHODS
I<Note:> These methods are solely for the maintainance of Unicode::Map.
Using any of these methods will lead to programs incompatible with
Unicode::Map8.
=over 4
=item alias
I<@list> = I<$Map> -> alias (I<$csid>)
Returns a list of alias names of character set I<$csid>.
=item mapping
I<$path> = I<$Map> -> mapping (I<$csid>)
Returns the absolute path of binary character mapping for character set
I<$csid> according to REGISTRY file of Unicode::Map.
=item id
I<$real_id>||C<""> = I<$Map> -> id (I<$test_id>)
Returns a valid character set identifier I<$real_id>, if I<$test_id> is
a valid character set name or alias name according to REGISTRY file of
Unicode::Map.
=item ids
I<@ids> = I<$Map> -> ids()
Returns a list of all character set names defined in REGISTRY file.
=item read_text_mapping
C<1>||C<0> = I<$Map> -> read_text_mapping (I<$csid>, I<$path>, I<$style>)
Read a text mapping of style I<$style> named I<$csid> from filename I<$path>.
The mapping then can be saved to a file with method: write_binary_mapping.
<$style> can be:
style description
"unicode" A text mapping as of ftp://ftp.unicode.org/MAPPINGS/
"" Same as "unicode"
"reverse" Similar to unicode, but both columns are switched
"keld" A text mapping as of ftp://dkuug.dk/i18n/charmaps/
=item src
I<$path> = I<$Map> -> src (I<$csid>)
Returns the path of textual character mapping for character set I<$csid>
according to REGISTRY file of Unicode::Map.
=item style
I<$path> = I<$Map> -> style (I<$csid>)
Returns the style of textual character mapping for character set I<$csid>
according to REGISTRY file of Unicode::Map.
=item write_binary_mapping
C<1>||C<0> = I<$Map> -> write_binary_mapping (I<$csid>, I<$path>)
Stores a mapping that has been loaded via method read_text_mapping in
file I<$path>.
=back
=head1 DEPRECATED METHODS
Some functionality is no longer promoted.
=over 4
=item noise
Deprecated! Don't use any longer.
=item reverse_unicode
Deprecated! Use Unicode::String::byteswap instead.
=back
=head1 BINARY MAPPINGS
Structure of binary Mapfiles
Unicode character mapping tables have sequences of sequential key and
sequential value codes. This property is used to crunch the maps easily.
n (0<n<256) sequential characters are represented as a bytecount n and
the first character code key_start. For these subsequences the according
value sequences are crunched together, also. The value 0 is used to start
an extended information block (that is just partially implemented, though).
One could think of two ways to make a binary mapfile. First method would
be first to write a list of all key codes, and then to write a list of all
value codes. Second method, used here, appends to all partial key code lists
the according crunched value code lists. This makes value codes a little bit
closer to key codes.
B<Note: the file format is still in a very liquid state. Neither rely on
that it will stay as this, nor that the description is bugless, nor that
all features are implemented.>
STRUCTURE:
=over 4
=item <main>:
offset structure value
0x00 word 0x27b8 (magic)
0x02 @(<extended> || <submapping>)
The mapfile ends with extended mode <end> in main stream.
=item <submapping>:
0x00 byte != 0 charsize1 (bits)
0x01 byte n1 number of chars for one entry
0x02 byte charsize2 (bits)
0x03 byte n2 number of chars for one entry
0x04 @(<extended> || <key_seq> || <key_val_seq)
bs1=int((charsize1+7)/8), bs2=int((charsize2+7)/8)
One submapping ends when <mapend> entry occurs.
=item <key_val_seq>:
0x00 size=0|1|2|4 n, number of sequential characters
size bs1 key1
+bs1 bs2 value1
+bs2 bs1 key2
+bs1 bs2 value2
...
key_val_seq ends, if either file ends (n = infinite mode) or n pairs are
read.
=item <key_seq>:
0x00 byte n, number of sequential characters
0x01 bs1 key_start, first character of sequence
1+bs1 @(<extended> || <val_seq>)
A key sequence starts with a byte count telling how long the sequence
is. It is followed by the key start code. After this comes a list of
value sequences. The list of value sequences ends, if sum(m) equals n.
=item <val_seq>:
0x00 byte m, number of sequential characters
0x01 bs2 val_start, first character of sequence
=item <extended>:
0x00 byte 0
0x01 byte ftype
0x02 byte fsize, size of following structure
0x03 fsize bytes something
For future extensions or private use one can insert here 1..255 byte long
streams. ftype can have values 30..255, values 0..29 are reserved. Modi
are not fully defined now and could change. They will be explained later.
=back
=head1 TO BE DONE
=over 4
=item -
Something clever, when a character has no translation.
=item -
Direct charset -> charset mapping.
=item -
Better performance.
=item -
Support for mappings according to RFC 1345.
=back
=head1 SEE ALSO
=over 4
=item -
File C<REGISTRY> and binary mappings in directory C<Unicode/Map> of your
perl library path
=item -
recode(1), map(1), mkmapfile(1), Unicode::Map(3), Unicode::Map8(3),
Unicode::String(3), Unicode::CharName(3), mirrorMappings(1)
=item -
RFC 1345
=item -
Mappings at Unicode consortium ftp://ftp.unicode.org/MAPPINGS/
=item -
Registrated Internet character sets ftp://dkuug.dk/i18n/charmaps/
=item -
2do: more references
=back
=head1 AUTHOR
Martin Schwartz E<lt>F<martin@nacho.de>E<gt>
=cut
|