agg https://asciinema.org/a/gDna9RnicwYjDRIDn4e07NFSc demo.gif --fps-cap 60 --rows 15 --cols 50

ld.lld: error: undefined symbol: _bla_bla

.id = @uuid("..."),
.time = 1710085168,
.payload = Command {
  .do = @action("clear_chat"),
  .sender = "kristoff-it",
  .roles = ["admin", "mod"],
  .extra = {
    "agent": "Mozilla/5.0",
    "os": "Linux/x64", 
  },
}

// re2zig $INPUT -o $OUTPUT

const std = @import("std");

fn lex(yyinput: [:0]const u8) bool {
    var yycursor: u32 = 0;
    /*!re2c
        re2c:define:YYCTYPE = u8;
        re2c:yyfill:enable = 0;

        number = [1-9][0-9]*;

        number { return true; }
        *      { return false; }
    */
}

test {
    try std.testing.expect(lex("1234"));
}

// Generated by re2c
// re2zig $INPUT -o $OUTPUT

const std = @import("std");

fn lex(yyinput: [:0]const u8) bool {
    var yycursor: u32 = 0;

    var yych: u8 = 0;
    var yystate: u32 = 0;
    while (true) {
        switch (yystate) {
            0 => {
                yych = yyinput[yycursor];
                yycursor += 1;
                switch (yych) {
                    0x31...0x39 => {
                        yystate = 2;
                        continue;
                    },
                    else => {
                        yystate = 1;
                        continue;
                    },
                }
            },
            1 => { return false; },
            2 => {
                yych = yyinput[yycursor];
                switch (yych) {
                    0x30...0x39 => {
                        yycursor += 1;
                        yystate = 2;
                        continue;
                    },
                    else => {
                        yystate = 3;
                        continue;
                    },
                }
            },
            3 => { return true; },
            else => { @panic("internal lexer error"); },
        }
    }

}

test {
    try std.testing.expect(lex("1234"));
}

state: switch (yystate) {
    0 => {
        yych = yyinput[yycursor];
        yycursor += 1;
        switch (yych) {
            '1'...'9' => continue :state 2,
            else => continue :state 1
        }
    },
    1 => { return false; },
    2 => {
        yych = yyinput[yycursor];
        switch (yych) {
            '0'...'9' => {
                yycursor += 1;
                continue :state 2;
            },
            else => continue :state 3,
        }
    },
    3 => { return true; },
    else => { @panic("internal lexer error"); },
}