From 08be45bfeb85bc809a492b9d0147052a028dd8ec Mon Sep 17 00:00:00 2001
From: Jose Colon Rodriguez
Date: Sun, 18 Feb 2024 11:21:49 -0400
Subject: Back to zg code_point. 4ms faster than Ghostty's Utf8Decoder

---
 src/cp2.zig | 69 -------------------------------------------------------------
 1 file changed, 69 deletions(-)
 delete mode 100644 src/cp2.zig

(limited to 'src/cp2.zig')

diff --git a/src/cp2.zig b/src/cp2.zig
deleted file mode 100644
index ae0f9da..0000000
--- a/src/cp2.zig
+++ /dev/null
@@ -1,69 +0,0 @@
-const std = @import("std");
-
-const Utf8Decoder = @import("Utf8Decoder.zig");
-
-/// `CodePoint` represents a Unicode code point by its code,
-/// length, and offset in the source bytes.
-pub const CodePoint = struct {
-    code: u21,
-    len: u3,
-    offset: u32,
-};
-
-/// `Iterator` iterates a string one `CodePoint` at-a-time.
-pub const Iterator = struct {
-    bytes: []const u8,
-    decoder: Utf8Decoder = .{},
-    i: u32 = 0,
-
-    pub fn next(self: *Iterator) ?CodePoint {
-        if (self.i >= self.bytes.len) return null;
-
-        if (self.bytes[self.i] < 128) {
-            // ASCII fast path
-            defer self.i += 1;
-            return .{
-                .code = self.bytes[self.i],
-                .len = 1,
-                .offset = self.i,
-            };
-        }
-
-        for (self.bytes[self.i..], 1..) |b, len| {
-            var consumed = false;
-            while (!consumed) {
-                const res = self.decoder.next(b);
-                consumed = res[1];
-
-                if (res[0]) |code| {
-                    defer self.i += @intCast(len);
-
-                    return .{
-                        .code = code,
-                        .len = @intCast(len),
-                        .offset = self.i,
-                    };
-                }
-            }
-        }
-
-        unreachable;
-    }
-
-    pub fn peek(self: *Iterator) ?CodePoint {
-        const saved_i = self.i;
-        defer self.i = saved_i;
-        return self.next();
-    }
-};
-
-test "peek" {
-    const src = "Hi";
-    var iter = Iterator{ .bytes = src };
-
-    try std.testing.expectEqual(@as(u21, 'H'), iter.next().?.code);
-    try std.testing.expectEqual(@as(u21, 'i'), iter.peek().?.code);
-    try std.testing.expectEqual(@as(u21, 'i'), iter.next().?.code);
-    try std.testing.expectEqual(@as(?CodePoint, null), iter.peek());
-    try std.testing.expectEqual(@as(?CodePoint, null), iter.next());
-}
-- 
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