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12345678910111213141516171819202122232425262728293031323334353637383940414243444546const std = @import("std");
// vt.cppextern "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));}
// This is not very fast in debug modes, so its commented by default.// IMPORTANT: UNCOMMENT THIS WHENEVER MAKING CODEPOINTWIDTH CHANGES.// test "codepointWidth matches ziglyph" {// const testing = std.testing;// const ziglyph = @import("ziglyph");//// 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);// }// }// }