Initial working commit

There are still some errors when run through valgrind, but it performs
as expected for the test file.

1 files changed, 44 insertions, 0 deletions

diff --git a/nodelink.c b/nodelink.c
new file mode 100644
index 0000000..ad6beb3
--- /dev/null
+++ b/nodelink.c
@@ -0,0 +1,44 @@
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "nodelink.h"
+#include "strbst.h"
+
+node* newnode(void) {
+    node* new = malloc(sizeof(node));
+    new->links = newbst();
+    return new;
+}
+
+link* newlink(node* to) {
+    link* new = malloc(sizeof(link));
+    new->desc = ""; // preferred to NULL because it can be printed
+    new->to = to;
+    return new;
+}
+
+static void printlink(char* name, link* conn) {
+    if (conn->desc[0])
+        printf("Link to %s: %s", name, conn->desc);
+    else
+        printf("Link to %s", name);
+}
+
+static void printeach(strbstnode* loc, char reprint) {
+    if (loc == NULL) return;
+    // loc->ind is the name of the connection and loc->data the link
+    if (!reprint) printf("    "); // indent on subnode
+    printlink(loc->ind, loc->data); // prints it
+    if (reprint) { // and their subnodes if iterating over root tree
+        printf("subnodes:\n");
+        // prints the link's target's link tree
+        printeach( ( (link*)loc->data)->to->links->head, 0);
+    }
+    printeach(loc->left, reprint);
+    printeach(loc->right, reprint); // recursion
+}
+
+void printnode(node* root) {
+    printf("Root node\n");
+    printeach(root->links->head, 1);
+}