mktables: Handle Unicode 16.0 Unikemet.txt file

This includes several new properties, some of which are considered
"provisional" by Unicode, which means they can be heavily revised or
withdrawn.

These properties are designed for use by scholars of hieroglyphics.

Author: khwilliamson

charclass_invlists.inc

@@ -436055,7 +436055,7 @@ static const U8 WB_table[23][23] = {
  * 3f4f32ed2a577344a508114527e721d7a8b633d32f38945d47fe0c743650c585 lib/unicore/extracted/DLineBreak.txt
  * 710abf2d581ac9c57f244c0834f9d9969d9781e0396adccd330eaae658ac7d6b lib/unicore/extracted/DNumType.txt
  * 6bd30f385f3baf3ab5d5308c111a81de87bea5f494ba0ba69e8ab45263b8c34d lib/unicore/extracted/DNumValues.txt
- * d13b7019817a693e50c3b233b25efd73390334c226f700650628734388c34209 lib/unicore/mktables
+ * 122e104ecbf3408f4d18a5f4e4b9ce12737f421d0b31581835459e38d9c93ca6 lib/unicore/mktables
  * 55d90fdc3f902e5c0b16b3378f9eaa36e970a1c09723c33de7d47d0370044012 lib/unicore/version
  * 0a6b5ab33bb1026531f816efe81aea1a8ffcd34a27cbea37dd6a70a63d73c844 regen/charset_translations.pl
  * c7ff8e0d207d3538c7feb4a1a152b159e5e902d20293b303569ea8323e84633e regen/mk_PL_charclass.pl

lib/unicore/mktables

@@ -871,6 +871,15 @@ push @tables_that_may_be_empty, 'Grapheme_Cluster_Break=Prepend'
 push @tables_that_may_be_empty, 'Canonical_Combining_Class=CCC133'
                                                     if $v_version ge v6.2.0;
 
+# These properties of Egyptian hieroglyphs are not handled by Perl.  Their
+# intended audience is only specialist Egyptologists
+push @tables_that_may_be_empty, qw(kEH_Cat kEH_Desc kEH_HG kEH_IFAO
+                                   kEH_JSesh
+                                   kEH_NoMirror kEH_NoMirror=Yes
+                                   kEH_NoMirror=No
+                                   kEH_NoRotate kEH_NoRotate=Yes)
+                                                    if $v_version ge v16.0.0;
+
 # The lists below are hashes, so the key is the item in the list, and the
 # value is the reason why it is in the list.  This makes generation of
 # documentation easier.
@@ -13377,6 +13386,30 @@ sub filter_early_version_name_alias_line {
     return;
 }
 
+sub setup_Unikemet{
+
+    # These are provisional properties, so aren't in PropAliases.txt
+    my %properties = (
+                      Core => $ENUM,
+                      FVal => $STRING,
+                      Func => $STRING,
+                      UniK => $ENUM,
+                     );
+    for my $property (keys %properties) {
+        Property->new("kEH_$property",
+                      Default_Map => "",
+                      Type => $STRING,,
+                     );
+    }
+}
+
+sub filter_Unikemet_line {
+    $_ =~ s/;/,/g;      # mktables can't accept semi-colons
+    $_ =~ s/\t/; /g;
+    $_ =~ s/ ^ U\+ //x;
+    return;
+}
+
 sub filter_all_caps_script_names {
 
     # Some early Unicode releases had the script names in all CAPS.  This
@@ -19809,6 +19842,11 @@ my @input_file_objects = (
                     Skip => $Unused_Skip,
                     UCD => 0,
                    ),
+    Input_file->new('Unikemet.txt', v16.0.0,
+                    Pre_Handler => \&setup_Unikemet,
+                    Each_Line_Handler => \&filter_Unikemet_line,
+                    UCD => 0,
+                   ),
     Input_file->new('DoNotEmit.txt', v16.0.0,
                     # Advice about characters that are unwise to create; not
                     # any properties, though we could create some.

lib/unicore/uni_keywords.pl

@@ -78,7 +78,7 @@
  * 3f4f32ed2a577344a508114527e721d7a8b633d32f38945d47fe0c743650c585 lib/unicore/extracted/DLineBreak.txt
  * 710abf2d581ac9c57f244c0834f9d9969d9781e0396adccd330eaae658ac7d6b lib/unicore/extracted/DNumType.txt
  * 6bd30f385f3baf3ab5d5308c111a81de87bea5f494ba0ba69e8ab45263b8c34d lib/unicore/extracted/DNumValues.txt
- * d13b7019817a693e50c3b233b25efd73390334c226f700650628734388c34209 lib/unicore/mktables
+ * 122e104ecbf3408f4d18a5f4e4b9ce12737f421d0b31581835459e38d9c93ca6 lib/unicore/mktables
  * 55d90fdc3f902e5c0b16b3378f9eaa36e970a1c09723c33de7d47d0370044012 lib/unicore/version
  * 0a6b5ab33bb1026531f816efe81aea1a8ffcd34a27cbea37dd6a70a63d73c844 regen/charset_translations.pl
  * c7ff8e0d207d3538c7feb4a1a152b159e5e902d20293b303569ea8323e84633e regen/mk_PL_charclass.pl