Refactor ALL the things!

src/parsers/not.c

@@ -0,0 +1,22 @@
+#include "parser_internal.h"
+
+static HParseResult* parse_not(void* env, HParseState* state) {
+  HInputStream bak = state->input_stream;
+  if (h_do_parse((HParser*)env, state))
+    return NULL;
+  else {
+    state->input_stream = bak;
+    return make_result(state, NULL);
+  }
+}
+
+static const HParserVtable not_vt = {
+  .parse = parse_not,
+};
+
+const HParser* h_not(const HParser* p) {
+  HParser *res = g_new(HParser, 1);
+  res->vtable = &not_vt;
+  res->env = (void*)p;
+  return res;
+}