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-rw-r--r--codegen/lower.zig56
1 files changed, 0 insertions, 56 deletions
diff --git a/codegen/lower.zig b/codegen/lower.zig
deleted file mode 100644
index 91f3ef2..0000000
--- a/codegen/lower.zig
+++ /dev/null
@@ -1,56 +0,0 @@
1const std = @import("std");
2const builtin = @import("builtin");
3
4pub fn main() !void {
5 var arena = std.heap.ArenaAllocator.init(std.heap.page_allocator);
6 defer arena.deinit();
7 const allocator = arena.allocator();
8
9 var write_buf: [4096]u8 = undefined;
10 // Process UnicodeData.txt
11 var in_reader = std.io.Reader.fixed(@embedFile("UnicodeData.txt"));
12 var args_iter = try std.process.argsWithAllocator(allocator);
13 defer args_iter.deinit();
14 _ = args_iter.skip();
15 const output_path = args_iter.next() orelse @panic("No output file arg!");
16
17 var out_file = try std.fs.cwd().createFile(output_path, .{});
18 defer out_file.close();
19 var writer = out_file.writer(&write_buf);
20
21 const endian = builtin.cpu.arch.endian();
22
23 lines: while (in_reader.takeDelimiterInclusive('\n')) |took| {
24 const line = std.mem.trimRight(u8, took, "\n");
25 if (line.len == 0) continue;
26
27 var field_iter = std.mem.splitScalar(u8, line, ';');
28 var cp: i24 = undefined;
29
30 var i: usize = 0;
31 while (field_iter.next()) |field| : (i += 1) {
32 switch (i) {
33 0 => cp = try std.fmt.parseInt(i24, field, 16),
34
35 2 => if (line[0] == '<') continue :lines,
36
37 13 => {
38 // Simple lowercase mapping
39 if (field.len == 0) continue :lines;
40 try writer.interface.writeInt(i24, cp, endian);
41 const mapping = try std.fmt.parseInt(i24, field, 16);
42 try writer.interface.writeInt(i24, mapping - cp, endian);
43 },
44
45 else => {},
46 }
47 }
48 } else |err| switch (err) {
49 error.EndOfStream => {},
50 else => {
51 return err;
52 },
53 }
54 try writer.interface.writeInt(u24, 0, endian);
55 try writer.interface.flush();
56}