From 3c2c30bfbe861c6c48acd8d7507886787197a788 Mon Sep 17 00:00:00 2001
From: Sam Atman
Date: Wed, 30 Apr 2025 12:58:26 -0400
Subject: Merge NormData with Normalize

---
 src/FoldData.zig | 78 ++++++++++++++++++++++++++++----------------------------
 1 file changed, 39 insertions(+), 39 deletions(-)

(limited to 'src/FoldData.zig')

diff --git a/src/FoldData.zig b/src/FoldData.zig
index e44e714..b7fdceb 100644
--- a/src/FoldData.zig
+++ b/src/FoldData.zig
@@ -12,9 +12,9 @@ stage1: []u8 = undefined,
 stage2: []u8 = undefined,
 stage3: []i24 = undefined,
 
-const Self = @This();
+const FoldData = @This();
 
-pub fn init(allocator: mem.Allocator) !Self {
+pub fn init(allocator: mem.Allocator) !FoldData {
     const decompressor = compress.flate.inflate.decompressor;
     const in_bytes = @embedFile("fold");
     var in_fbs = std.io.fixedBufferStream(in_bytes);
@@ -23,61 +23,61 @@ pub fn init(allocator: mem.Allocator) !Self {
 
     const endian = builtin.cpu.arch.endian();
 
-    var self = Self{};
-    self.cutoff = @intCast(try reader.readInt(u24, endian));
-    self.multiple_start = @intCast(try reader.readInt(u24, endian));
+    var fdata = FoldData{};
+    fdata.cutoff = @intCast(try reader.readInt(u24, endian));
+    fdata.multiple_start = @intCast(try reader.readInt(u24, endian));
 
     var len = try reader.readInt(u16, endian);
-    self.stage1 = try allocator.alloc(u8, len);
-    errdefer allocator.free(self.stage1);
-    for (0..len) |i| self.stage1[i] = try reader.readInt(u8, endian);
+    fdata.stage1 = try allocator.alloc(u8, len);
+    errdefer allocator.free(fdata.stage1);
+    for (0..len) |i| fdata.stage1[i] = try reader.readInt(u8, endian);
 
     len = try reader.readInt(u16, endian);
-    self.stage2 = try allocator.alloc(u8, len);
-    errdefer allocator.free(self.stage2);
-    for (0..len) |i| self.stage2[i] = try reader.readInt(u8, endian);
+    fdata.stage2 = try allocator.alloc(u8, len);
+    errdefer allocator.free(fdata.stage2);
+    for (0..len) |i| fdata.stage2[i] = try reader.readInt(u8, endian);
 
     len = try reader.readInt(u16, endian);
-    self.stage3 = try allocator.alloc(i24, len);
-    errdefer allocator.free(self.stage3);
-    for (0..len) |i| self.stage3[i] = try reader.readInt(i24, endian);
+    fdata.stage3 = try allocator.alloc(i24, len);
+    errdefer allocator.free(fdata.stage3);
+    for (0..len) |i| fdata.stage3[i] = try reader.readInt(i24, endian);
 
-    self.cwcf_exceptions_min = @intCast(try reader.readInt(u24, endian));
-    self.cwcf_exceptions_max = @intCast(try reader.readInt(u24, endian));
+    fdata.cwcf_exceptions_min = @intCast(try reader.readInt(u24, endian));
+    fdata.cwcf_exceptions_max = @intCast(try reader.readInt(u24, endian));
     len = try reader.readInt(u16, endian);
-    self.cwcf_exceptions = try allocator.alloc(u21, len);
-    errdefer allocator.free(self.cwcf_exceptions);
-    for (0..len) |i| self.cwcf_exceptions[i] = @intCast(try reader.readInt(u24, endian));
+    fdata.cwcf_exceptions = try allocator.alloc(u21, len);
+    errdefer allocator.free(fdata.cwcf_exceptions);
+    for (0..len) |i| fdata.cwcf_exceptions[i] = @intCast(try reader.readInt(u24, endian));
 
-    return self;
+    return fdata;
 }
 
-pub fn deinit(self: *const Self, allocator: mem.Allocator) void {
-    allocator.free(self.stage1);
-    allocator.free(self.stage2);
-    allocator.free(self.stage3);
-    allocator.free(self.cwcf_exceptions);
+pub fn deinit(fdata: *const FoldData, allocator: mem.Allocator) void {
+    allocator.free(fdata.stage1);
+    allocator.free(fdata.stage2);
+    allocator.free(fdata.stage3);
+    allocator.free(fdata.cwcf_exceptions);
 }
 
 /// Returns the case fold for `cp`.
-pub fn caseFold(self: Self, cp: u21, buf: []u21) []const u21 {
-    if (cp >= self.cutoff) return &.{};
+pub fn caseFold(fdata: *const FoldData, cp: u21, buf: []u21) []const u21 {
+    if (cp >= fdata.cutoff) return &.{};
 
-    const stage1_val = self.stage1[cp >> 8];
+    const stage1_val = fdata.stage1[cp >> 8];
     if (stage1_val == 0) return &.{};
 
     const stage2_index = @as(usize, stage1_val) * 256 + (cp & 0xFF);
-    const stage3_index = self.stage2[stage2_index];
+    const stage3_index = fdata.stage2[stage2_index];
 
     if (stage3_index & 0x80 != 0) {
-        const real_index = @as(usize, self.multiple_start) + (stage3_index ^ 0x80) * 3;
-        const mapping = mem.sliceTo(self.stage3[real_index..][0..3], 0);
+        const real_index = @as(usize, fdata.multiple_start) + (stage3_index ^ 0x80) * 3;
+        const mapping = mem.sliceTo(fdata.stage3[real_index..][0..3], 0);
         for (mapping, 0..) |c, i| buf[i] = @intCast(c);
 
         return buf[0..mapping.len];
     }
 
-    const offset = self.stage3[stage3_index];
+    const offset = fdata.stage3[stage3_index];
     if (offset == 0) return &.{};
 
     buf[0] = @intCast(@as(i32, cp) + offset);
@@ -86,14 +86,14 @@ pub fn caseFold(self: Self, cp: u21, buf: []u21) []const u21 {
 }
 
 /// Returns true when caseFold(NFD(`cp`)) != NFD(`cp`).
-pub fn changesWhenCaseFolded(self: Self, cp: u21) bool {
+pub fn changesWhenCaseFolded(fdata: *const FoldData, cp: u21) bool {
     var buf: [3]u21 = undefined;
-    const has_mapping = self.caseFold(cp, &buf).len != 0;
-    return has_mapping and !self.isCwcfException(cp);
+    const has_mapping = fdata.caseFold(cp, &buf).len != 0;
+    return has_mapping and !fdata.isCwcfException(cp);
 }
 
-fn isCwcfException(self: Self, cp: u21) bool {
-    return cp >= self.cwcf_exceptions_min and
-        cp <= self.cwcf_exceptions_max and
-        std.mem.indexOfScalar(u21, self.cwcf_exceptions, cp) != null;
+fn isCwcfException(fdata: *const FoldData, cp: u21) bool {
+    return cp >= fdata.cwcf_exceptions_min and
+        cp <= fdata.cwcf_exceptions_max and
+        std.mem.indexOfScalar(u21, fdata.cwcf_exceptions, cp) != null;
 }
-- 
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