1 files changed, 35 insertions, 0 deletions
diff --git a/vendor/libghostty-vt/src/simd/index_of.zig b/vendor/libghostty-vt/src/simd/index_of.zig
new file mode 100644
index 00000000..7bf053b0
--- /dev/null
+++ b/vendor/libghostty-vt/src/simd/index_of.zig
@@ -0,0 +1,35 @@
+const std = @import("std");
+const options = @import("build_options");
+
+extern "c" fn ghostty_simd_index_of(
+    needle: u8,
+    input: [*]const u8,
+    count: usize,
+) usize;
+
+pub fn indexOf(input: []const u8, needle: u8) ?usize {
+    if (comptime options.simd) {
+        const result = ghostty_simd_index_of(needle, input.ptr, input.len);
+        return if (result == input.len) null else result;
+    }
+
+    return indexOfScalar(input, needle);
+}
+
+fn indexOfScalar(input: []const u8, needle: u8) ?usize {
+    return std.mem.indexOfScalar(u8, input, needle);
+}
+
+test "indexOf" {
+    const testing = std.testing;
+    try testing.expect(indexOf("hello", ' ') == null);
+    try testing.expectEqual(@as(usize, 2), indexOf("hi lo", ' ').?);
+    try testing.expectEqual(@as(usize, 5), indexOf(
+        \\XXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+        \\XXXXXXXXXXXX XXXXXXXXXXX XXXXXXXXXXXXXXX
+    , ' ').?);
+    try testing.expectEqual(@as(usize, 53), indexOf(
+        \\XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+        \\XXXXXXXXXXXX XXXXXXXXXXX XXXXXXXXXXXXXXX
+    , ' ').?);
+}