commit 64c3541416d9c33137663bdefebb6928caff9841
Author: Der Teufel <der.teufel.mail@gmail.com>
Date:   Thu Dec 30 18:22:02 2021 +0100

    Initial commit;
    Readline with history, simple input-echo;
    Temporary name BYOL

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..8bc911a
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+zig-out/
+zig-cache/
\ No newline at end of file
diff --git a/build.zig b/build.zig
new file mode 100644
index 0000000..00f3c06
--- /dev/null
+++ b/build.zig
@@ -0,0 +1,36 @@
+const std = @import("std");
+
+pub fn build(b: *std.build.Builder) void {
+    // Standard target options allows the person running `zig build` to choose
+    // what target to build for. Here we do not override the defaults, which
+    // means any target is allowed, and the default is native. Other options
+    // for restricting supported target set are available.
+    const target = b.standardTargetOptions(.{});
+
+    // Standard release options allow the person running `zig build` to select
+    // between Debug, ReleaseSafe, ReleaseFast, and ReleaseSmall.
+    const mode = b.standardReleaseOptions();
+
+    const exe = b.addExecutable("tokiponalisp", "src/main.zig");
+    exe.setTarget(target);
+    exe.setBuildMode(mode);
+    exe.linkLibC();
+    exe.linkSystemLibrary("libeditline");
+    exe.install();
+
+    const run_cmd = exe.run();
+    run_cmd.step.dependOn(b.getInstallStep());
+    if (b.args) |args| {
+        run_cmd.addArgs(args);
+    }
+
+    const run_step = b.step("run", "Run the app");
+    run_step.dependOn(&run_cmd.step);
+
+    const exe_tests = b.addTest("src/main.zig");
+    exe_tests.setTarget(target);
+    exe_tests.setBuildMode(mode);
+
+    const test_step = b.step("test", "Run unit tests");
+    test_step.dependOn(&exe_tests.step);
+}
diff --git a/src/main.zig b/src/main.zig
new file mode 100644
index 0000000..3af8d4a
--- /dev/null
+++ b/src/main.zig
@@ -0,0 +1,18 @@
+const std = @import("std");
+const prompt = @import("prompt.zig");
+
+pub fn main() anyerror!void {
+    const stdout = std.io.getStdOut().writer();
+    try stdout.writeAll("BYOL Lispy - ver. 0.0.1\n");
+
+    prompt.init();
+    defer prompt.deinit();
+
+    while (true) {
+        
+        var input = prompt.readline("BYOL> ") orelse break;
+        defer std.c.free(&input);
+
+        try stdout.print("Echo> {s}\n", .{input});
+    }
+}
diff --git a/src/prompt.zig b/src/prompt.zig
new file mode 100644
index 0000000..e97e8a2
--- /dev/null
+++ b/src/prompt.zig
@@ -0,0 +1,23 @@
+const ceditline = @cImport({
+    @cInclude("stdio.h");
+    @cInclude("editline.h");
+});
+const std = @import("std");
+const io = std.io;
+
+pub fn readline(prompt: [*c]const u8) ?[]u8 {
+    var line = ceditline.readline(@as([*c]const u8, prompt));
+    if (line == 0) {
+        std.c.free(line);
+        return null;
+    }
+    return std.mem.sliceTo(line, 0);
+}
+
+pub fn init() void {
+    ceditline.rl_initialize();
+}
+
+pub fn deinit() void {
+    ceditline.rl_uninitialize();
+}
\ No newline at end of file