61 lines
1.7 KiB
Zig
61 lines
1.7 KiB
Zig
pub fn control_code_to_unicode(code: u8) [:0]const u8 {
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return switch (code) {
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'\x00' => "␀",
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'\x01' => "␁",
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'\x02' => "␂",
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'\x03' => "␃",
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'\x04' => "␄",
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'\x05' => "␅",
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'\x06' => "␆",
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'\x07' => "␇",
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'\x08' => "␈",
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'\x09' => "␉",
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'\x0A' => "␊",
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'\x0B' => "␋",
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'\x0C' => "␌",
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'\x0D' => "␍",
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'\x0E' => "␎",
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'\x0F' => "␏",
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'\x10' => "␐",
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'\x11' => "␑",
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'\x12' => "␒",
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'\x13' => "␓",
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'\x14' => "␔",
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'\x15' => "␕",
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'\x16' => "␖",
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'\x17' => "␗",
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'\x18' => "␘",
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'\x19' => "␙",
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'\x1A' => "␚",
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'\x1B' => "␛",
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'\x1C' => "␜",
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'\x1D' => "␝",
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'\x1E' => "␞",
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'\x1F' => "␟",
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'\x20' => "␠",
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'\x7F' => "␡",
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else => "",
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};
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}
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fn raw_byte_to_utf8(cp: u8, buf: []u8) ![]const u8 {
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var utf16le: [1]u16 = undefined;
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const utf16le_as_bytes = std.mem.sliceAsBytes(utf16le[0..]);
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std.mem.writeInt(u16, utf16le_as_bytes[0..2], cp, .little);
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return buf[0..try std.unicode.utf16LeToUtf8(buf, &utf16le)];
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}
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const std = @import("std");
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pub fn utf8_sanitize(allocator: std.mem.Allocator, input: []const u8) error{
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OutOfMemory,
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DanglingSurrogateHalf,
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ExpectedSecondSurrogateHalf,
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UnexpectedSecondSurrogateHalf,
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}![]u8 {
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var output: std.ArrayListUnmanaged(u8) = .{};
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const writer = output.writer(allocator);
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var buf: [4]u8 = undefined;
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for (input) |byte| try writer.writeAll(try raw_byte_to_utf8(byte, &buf));
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return output.toOwnedSlice(allocator);
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}
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