1 files changed, 14 insertions, 12 deletions

diff --git a/codegen/lower.zig b/codegen/lower.zig
index a053fe3..c11cb0a 100644
--- a/codegen/lower.zig
+++ b/codegen/lower.zig
@@ -6,27 +6,25 @@ pub fn main() !void {
     defer arena.deinit();
     const allocator = arena.allocator();
 
+    var line_buf: [4096]u8 = undefined;
+    var write_buf: [4096]u8 = undefined;
     // Process UnicodeData.txt
     var in_file = try std.fs.cwd().openFile("data/unicode/UnicodeData.txt", .{});
     defer in_file.close();
-    var in_buf = std.io.bufferedReader(in_file.reader());
-    const in_reader = in_buf.reader();
+    var in_reader = in_file.reader(&line_buf);
 
     var args_iter = try std.process.argsWithAllocator(allocator);
     defer args_iter.deinit();
     _ = args_iter.skip();
     const output_path = args_iter.next() orelse @panic("No output file arg!");
 
-    const compressor = std.compress.flate.deflate.compressor;
     var out_file = try std.fs.cwd().createFile(output_path, .{});
     defer out_file.close();
-    var out_comp = try compressor(.raw, out_file.writer(), .{ .level = .best });
-    const writer = out_comp.writer();
+    var writer = out_file.writer(&write_buf);
 
     const endian = builtin.cpu.arch.endian();
-    var line_buf: [4096]u8 = undefined;
 
-    lines: while (try in_reader.readUntilDelimiterOrEof(&line_buf, '\n')) |line| {
+    lines: while (in_reader.interface.takeDelimiterExclusive('\n')) |line| {
         if (line.len == 0) continue;
 
         var field_iter = std.mem.splitScalar(u8, line, ';');
@@ -42,16 +40,20 @@ pub fn main() !void {
                 13 => {
                     // Simple lowercase mapping
                     if (field.len == 0) continue :lines;
-                    try writer.writeInt(i24, cp, endian);
+                    try writer.interface.writeInt(i24, cp, endian);
                     const mapping = try std.fmt.parseInt(i24, field, 16);
-                    try writer.writeInt(i24, mapping - cp, endian);
+                    try writer.interface.writeInt(i24, mapping - cp, endian);
                 },
 
                 else => {},
             }
         }
+    } else |err| switch (err) {
+        error.EndOfStream => {},
+        else => {
+            return err;
+        },
     }
-
-    try writer.writeInt(u24, 0, endian);
-    try out_comp.flush();
+    try writer.interface.writeInt(u24, 0, endian);
+    try writer.interface.flush();
 }