start on newset.c

reimplement/newset.c

@@ -0,0 +1,52 @@
+#include "system.h"
+
+struct set {
+  int cnt;
+  struct symbols {
+    const char* str;
+    unsigned hash;
+  }* symbols_v;
+};
+
+struct set* set_new() {
+  // should we use x___ funcs?
+  struct set* set = xmalloc(sizeof *set);
+  set->cnt = 0;
+  set->symbols_v = NULL;
+
+  return set;
+}
+
+void set_add(struct set* set, const char* sym) {
+  const int delta = 1024;
+
+  if ((set->cnt & (delta - 1)) == 0) {
+    set->symbols_v = xrealloc(set->symbols_v, sizeof(*set->symbols_v) * (set->cnt + delta));
+  }
+
+  set->symbols_v[set->cnt].str = xstrdup(sym);
+  set->symbols_v[set->cnt].hash = 0;
+  set->cnt++;
+
+  return;
+}
+
+struct set* set_free(struct set* set) {
+  if (set) {
+    for (int i = 0; i < set->cnt; i++) {
+      _free((char*)set->symbols_v[i].str);
+    }
+
+    _free(set->symbols_v);
+    set = _free(set);
+  }
+
+  return NULL;
+}
+
+// ---
+
+const char* set_fini(struct set* set, int bpp) {
+  // Implementation for finalizing the set
+  return NULL;
+}