1 files changed, 39 insertions, 0 deletions
diff --git a/lib/register_syscmd.c b/lib/register_syscmd.c
new file mode 100644
index 0000000..dd08a6a
--- /dev/null
+++ b/lib/register_syscmd.c
@@ -0,0 +1,39 @@
+/* Aplwc - A Programming Language With Constraints
+ *
+ * Copyright (C) 2026 Peter Mikkelsen <petermikkelsen10@gmail.com>
+ *
+ * This file is part of aplwc.
+ *
+ * Aplwc is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Aplwc is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with aplwc.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <aplwc.h>
+#include "aplwc_internal.h"
+
+void
+aplwc_register_syscmd(struct aplwc *aplwc, struct aplwc_syscmd *syscmd)
+{
+	if(aplwc_lookup_syscmd(aplwc, syscmd->name))
+		return;
+
+	int n = 0;
+	for(struct aplwc_syscmd **tmp = aplwc->syscmds; *tmp; tmp++)
+		n++;
+
+	aplwc->syscmds = realloc(aplwc->syscmds, sizeof(aplwc->syscmds[0]) * (n+2));
+	aplwc->syscmds[n] = syscmd;
+	aplwc->syscmds[n+1] = NULL;
+}