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
|
const std = @import("std");
// vt.cpp
extern "c" fn ghostty_simd_codepoint_width(u32) i8;
pub fn codepointWidth(cp: u32) i8 {
//return @import("ziglyph").display_width.codePointWidth(@intCast(cp), .half);
return ghostty_simd_codepoint_width(cp);
}
test "codepointWidth basic" {
const testing = std.testing;
try testing.expectEqual(@as(i8, 1), codepointWidth('a'));
try testing.expectEqual(@as(i8, 1), codepointWidth(0x100)); // Ā
try testing.expectEqual(@as(i8, 2), codepointWidth(0x3400)); // 㐀
try testing.expectEqual(@as(i8, 2), codepointWidth(0x2E3A)); // ⸺
try testing.expectEqual(@as(i8, 2), codepointWidth(0x1F1E6)); // 🇦
try testing.expectEqual(@as(i8, 2), codepointWidth(0x4E00)); // 一
try testing.expectEqual(@as(i8, 2), codepointWidth(0xF900)); // 豈
try testing.expectEqual(@as(i8, 2), codepointWidth(0x20000)); // 𠀀
try testing.expectEqual(@as(i8, 2), codepointWidth(0x30000)); // 𠀀
// try testing.expectEqual(@as(i8, 1), @import("ziglyph").display_width.codePointWidth(0x100, .half));
}
pub export fn ghostty_ziglyph_codepoint_width(cp: u32) callconv(.C) i8 {
return @import("ziglyph").display_width.codePointWidth(@intCast(cp), .half);
}
test "codepointWidth matches ziglyph" {
const testing = std.testing;
const ziglyph = @import("ziglyph");
// try testing.expect(ziglyph.general_category.isNonspacingMark(0x16fe4));
// if (true) return;
const min = 0xFF + 1; // start outside ascii
for (min..std.math.maxInt(u21)) |cp| {
const simd = codepointWidth(@intCast(cp));
const zg = ziglyph.display_width.codePointWidth(@intCast(cp), .half);
if (simd != zg) mismatch: {
if (cp == 0x2E3B) {
try testing.expectEqual(@as(i8, 2), simd);
break :mismatch;
}
std.log.warn("mismatch cp=U+{x} simd={} zg={}", .{ cp, simd, zg });
try testing.expect(false);
}
}
}
|
