From f8c6d45755acb5abf9ac68931268b7945da0fae0 Mon Sep 17 00:00:00 2001
From: t <t@tjp.lol>
Date: Mon, 15 Jun 2026 22:11:53 -0600
Subject: display fixes: markdown rendering, tool-specific components

---
 build.zig | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

(limited to 'build.zig')

diff --git a/build.zig b/build.zig
index 87901c6..ceebee1 100644
--- a/build.zig
+++ b/build.zig
@@ -34,6 +34,10 @@ pub fn build(b: *std.Build) void {
         .@"thread-pool" = false,
     });
 
+    // Markdown parser for TUI rendering. MD4C is a small, permissively
+    // licensed C CommonMark parser; Zig owns only terminal rendering.
+    const md4c_dep = b.dependency("md4c", .{});
+
     // Fetch upstream Lua source (used both for our static library and
     // staged at runtime as the `include/` headers under $PANTO_HOME).
     // Reproducibility comes from the content-addressed hash in
@@ -102,6 +106,7 @@ pub fn build(b: *std.Build) void {
     // table for `dlopen`'d rocks to resolve.
     addLuaSources(exe_mod, lua_src, lua_anchor_path);
     exe_mod.addIncludePath(lua_src.path("src"));
+    addMd4c(exe_mod, md4c_dep);
 
     // Compile lua.c (the upstream standalone interpreter, ~600 lines)
     // as a separate static library so we can route the `panto lua`
@@ -156,6 +161,7 @@ pub fn build(b: *std.Build) void {
     }));
     addLuaSources(test_mod, lua_src, lua_anchor_path);
     test_mod.addIncludePath(lua_src.path("src"));
+    addMd4c(test_mod, md4c_dep);
     test_mod.linkLibrary(lua_repl);
 
     const unit_tests = b.addTest(.{
@@ -172,6 +178,20 @@ pub fn build(b: *std.Build) void {
     test_step.dependOn(&lib_test_step.step);
 }
 
+fn addMd4c(mod: *std.Build.Module, md4c_dep: *std.Build.Dependency) void {
+    const cflags = [_][]const u8{
+        "-std=c99",
+        "-Wall",
+        "-Wextra",
+        "-Wno-unused-parameter",
+    };
+    mod.addCSourceFile(.{
+        .file = md4c_dep.path("src/md4c.c"),
+        .flags = &cflags,
+    });
+    mod.addIncludePath(md4c_dep.path("src"));
+}
+
 /// Compile a thin wrapper around the upstream `lua.c` standalone
 /// interpreter that exposes `pmain` for panto's `lua` subcommand to
 /// invoke against a pre-configured `lua_State`.
-- 
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