unicode: switch to uucode grapheme break to match unicode 16 spec

src/unicode/props_uucode.zig

@@ -4,57 +4,18 @@ const assert = std.debug.assert;
 const uucode = @import("uucode");
 const lut = @import("lut.zig");
 const Properties = @import("props.zig").Properties;
-const GraphemeBoundaryClass = @import("props.zig").GraphemeBoundaryClass;
-
-/// Gets the grapheme boundary class for a codepoint.
-/// The use case for this is only in generating lookup tables.
-fn graphemeBoundaryClass(cp: u21) GraphemeBoundaryClass {
-    if (cp > uucode.config.max_code_point) return .invalid;
-
-    return switch (uucode.get(.grapheme_break, cp)) {
-        .extended_pictographic => .extended_pictographic,
-        .l => .L,
-        .v => .V,
-        .t => .T,
-        .lv => .LV,
-        .lvt => .LVT,
-        .prepend => .prepend,
-        .zwj => .zwj,
-        .spacing_mark => .spacing_mark,
-        .regional_indicator => .regional_indicator,
-        .emoji_modifier => .emoji_modifier,
-        .emoji_modifier_base => .extended_pictographic_base,
-
-        .zwnj,
-        .indic_conjunct_break_extend,
-        .indic_conjunct_break_linker,
-        => .extend,
-
-        // This is obviously not INVALID invalid, there is SOME grapheme
-        // boundary class for every codepoint. But we don't care about
-        // anything that doesn't fit into the above categories. Also note
-        // that `indic_conjunct_break_consonant` is `other` in
-        // 'GraphemeBreakProperty.txt' (it's missing).
-        .other,
-        .indic_conjunct_break_consonant,
-        .cr,
-        .lf,
-        .control,
-        => .invalid,
-    };
-}
 
 pub fn get(cp: u21) Properties {
     if (cp > uucode.config.max_code_point) return .{
         .width = 1,
-        .grapheme_boundary_class = .invalid,
+        .grapheme_break = .other,
         .emoji_vs_text = false,
         .emoji_vs_emoji = false,
     };
 
     return .{
         .width = uucode.get(.width, cp),
-        .grapheme_boundary_class = graphemeBoundaryClass(cp),
+        .grapheme_break = uucode.get(.grapheme_break_no_control, cp),
         .emoji_vs_text = uucode.get(.is_emoji_vs_text, cp),
         .emoji_vs_emoji = uucode.get(.is_emoji_vs_emoji, cp),
     };