Refactor ALL the things!

src/parsers/action.c

@@ -0,0 +1,31 @@
+#include "parser_internal.h"
+
+typedef struct {
+  const HParser *p;
+  HAction action;
+} HParseAction;
+
+static HParseResult* parse_action(void *env, HParseState *state) {
+  HParseAction *a = (HParseAction*)env;
+  if (a->p && a->action) {
+    HParseResult *tmp = h_do_parse(a->p, state);
+    //HParsedToken *tok = a->action(h_do_parse(a->p, state));
+    const HParsedToken *tok = a->action(tmp);
+    return make_result(state, (HParsedToken*)tok);
+  } else // either the parser's missing or the action's missing
+    return NULL;
+}
+
+static const HParserVtable action_vt = {
+  .parse = parse_action,
+};
+
+const HParser* h_action(const HParser* p, const HAction a) { 
+  HParser *res = g_new(HParser, 1);
+  res->vtable = &action_vt;
+  HParseAction *env = g_new(HParseAction, 1);
+  env->p = p;
+  env->action = a;
+  res->env = (void*)env;
+  return res;
+}