From 846faafc92e016c1ef4c0311511fce4aa7c9367f Mon Sep 17 00:00:00 2001
From: Luna <git@l4.pm>
Date: Sun, 7 Jul 2019 14:39:51 -0300
Subject: [PATCH] make lv2core namespaces use std.cstr.addNullByte

---
 src/main.zig | 24 +++++++++++++++---------
 1 file changed, 15 insertions(+), 9 deletions(-)

diff --git a/src/main.zig b/src/main.zig
index 926e59b..4e60afe 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -34,15 +34,14 @@ const c = @cImport({
 
 const LV2_CORE_URI = "http://lv2plug.in/ns/lv2core";
 
-fn Lv2Core(comptime ns: []const u8) []const u8 {
-    return (LV2_CORE_URI ++ ns)[0..];
-}
+fn Lv2Core(ns: []const u8) ![]const u8 {
+    var allocator = std.heap.direct_allocator;
 
-const LV2_CORE__InputPort = Lv2Core("#InputPort");
-const LV2_CORE__OutputPort = Lv2Core("#OutputPort");
-const LV2_CORE__AudioPort = Lv2Core("#AudioPort");
-const LV2_CORE__ControlPort = Lv2Core("#ControlPort");
-const LV2_CORE__connectionOptional = Lv2Core("#connectionOptional");
+    return try std.cstr.addNullByte(
+        allocator,
+        try std.fmt.allocPrint(allocator, "{}{}", LV2_CORE_URI, ns),
+    );
+}
 
 /// Control port value set from the command line
 const Param = struct {
@@ -143,6 +142,13 @@ const LV2Apply = struct {
 
         c.lilv_plugin_get_port_ranges_float(self.plugin, null, null, values.ptr);
 
+        // bad solution, but it really do be like that
+        const LV2_CORE__InputPort = try Lv2Core("#InputPort");
+        const LV2_CORE__OutputPort = try Lv2Core("#OutputPort");
+        const LV2_CORE__AudioPort = try Lv2Core("#AudioPort");
+        const LV2_CORE__ControlPort = try Lv2Core("#ControlPort");
+        const LV2_CORE__connectionOptional = try Lv2Core("#connectionOptional");
+
         var lv2_InputPort = c.lilv_new_uri(world, LV2_CORE__InputPort.ptr);
         defer std.heap.c_allocator.destroy(lv2_InputPort);
 
@@ -323,7 +329,7 @@ pub fn main() !void {
 
     self.in_path = in_path.?;
     self.out_path = out_path.?;
-    var plugin_uri = plugin_uri_opt.?;
+    var plugin_uri = try std.cstr.addNullByte(self.allocator, plugin_uri_opt.?);
 
     self.world = c.lilv_world_new().?;
     var uri: *c.LilvNode = c.lilv_new_uri(self.world, plugin_uri.ptr) orelse blk: {