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case folding

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This commit is contained in:
Jacob Sandlund
2025-08-13 09:56:05 -04:00
parent f5a036a6a0
commit 341137ce2e
3 changed files with 13 additions and 7 deletions
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11
src/input/Binding.zig
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@@ -6,7 +6,6 @@ const std = @import("std");
const Allocator = std.mem.Allocator;
const assert = std.debug.assert;
const build_config = @import("../build_config.zig");
const ziglyph = @import("ziglyph");
const uucode = @import("uucode");
const key = @import("key.zig");
const KeyEvent = key.KeyEvent;
@@ -1566,6 +1565,8 @@ pub const Trigger = struct {
.unicode => |cp| std.hash.autoHash(
hasher,
foldedCodepoint(cp),
// Alternative, just use simple case folding:
// uucode.get(.case_folding_simple, cp),
),
}
std.hash.autoHash(hasher, self.mods.binding());
@@ -1576,14 +1577,16 @@ pub const Trigger = struct {
fn foldedCodepoint(cp: u21) [3]u21 {
// ASCII fast path
if (uucode.ascii.isAlphabetic(cp)) {
return .{ ziglyph.letter.toLower(cp), 0, 0 };
return .{ uucode.ascii.toLower(cp), 0, 0 };
}
// Unicode slow path. Case folding can resultin more codepoints.
// Unicode slow path. Case folding can result in more codepoints.
// If more codepoints are produced then we return the codepoint
// as-is which isn't correct but until we have a failing test
// then I don't want to handle this.
return ziglyph.letter.toCaseFold(cp);
var folded: [3]u21 = .{ 0, 0, 0 };
_ = uucode.get(.case_folding_full, cp).copy(&folded, cp);
return folded;
}
/// Convert the trigger to a C API compatible trigger.