zig-toml

Zig TOML v1.0.0 parser.

This is a top-down LL parser that parses directly into Zig structs.

Features

• TOML Syntax
  • Integers, hexadecimal, octal, and binary numbers
  • Floats
  • Booleans
  • Comments
  • Arrays
  • Tables
  • Array of Tables
  • Inline Table
  • Single-line strings
  • String escapes (also unicode)
  • Multi-line strings
  • Multi-line string leading space trimming
  • Trailing backslash in multi-line strings
  • Date, time, date-time, time offset
• Struct mapping
  • Mapping to structs
  • Mapping to enums
  • Mapping to slices
  • Mapping to arrays
  • Mapping to pointers
  • Mapping to integer and floats with lower bit number than defined by TOML, i.e. i16, f32.
  • Mapping to optional fields
  • Mapping to HashMaps

Example

See example1.zig for the complete code that parses example.toml

Run it with zig build examples

// .... 

const Address = struct {
    port: i64,
    host: []const u8,
};

const Config = struct {
    master: bool,
    expires_at: toml.DateTime,
    description: []const u8,

    local: *Address,
    peers: []const Address,
};

pub fn main() anyerror!void {
    var parser = toml.Parser(Config).init(allocator);
    defer parser.deinit();

    var result = try parser.parseFile("./examples/example1.toml");
    defer result.deinit();

    const config = result.value;
    std.debug.print("{s}\nlocal address: {s}:{}\n", .{ config.description, config.local.host, config.local.port });
    std.debug.print("peer0: {s}:{}\n", .{ config.peers[0].host, config.peers[0].port });
}

Error Handling

TODO

License

MIT