From c984c05f2f2d6c9cee4a0eb561fd7184786c5d1d Mon Sep 17 00:00:00 2001
From: Roland Reichwein <mail@reichwein.it>
Date: Sat, 25 Jan 2020 13:19:49 +0100
Subject: Minor fixes

---
 grammer.cpp    | 2 +-
 lexer.cpp      | 2 +-
 test-lexer.cpp | 6 ++++--
 3 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/grammer.cpp b/grammer.cpp
index 796c099..508d6c5 100644
--- a/grammer.cpp
+++ b/grammer.cpp
@@ -179,7 +179,7 @@ bool Tree::Add(const Token& token, const BNF& bnf, const std::map<std::string, s
 
   std::vector<TreeNode> parent_nodes = getParentTreeNode(bnf, reverseBNF);
   if (parent_nodes.size() == 0)
-   throw std::runtime_error("Couldn't add new parent node for "s + nodes[root].token.type);
+   throw std::runtime_error("Couldn't add new parent node for "s + nodes[root].token.type + "("s + std::to_string(root) + ")"s);
 
   for (const auto &i : parent_nodes) {
    AddRootNode(i);
diff --git a/lexer.cpp b/lexer.cpp
index 7717b85..a0681f4 100644
--- a/lexer.cpp
+++ b/lexer.cpp
@@ -292,7 +292,7 @@ std::vector<Token> Lexer::Lex(const std::string& s)
  return result;
 }
 
-// C++: Preprocessor Tokens To Tokens
+// TODO: C++: Preprocessor Tokens To Tokens
 void Lexer::PreprocessorTokensToTokens(std::vector<Token>& tokens)
 {
  for (auto& i : tokens) {
diff --git a/test-lexer.cpp b/test-lexer.cpp
index 4f68fc6..71f787a 100644
--- a/test-lexer.cpp
+++ b/test-lexer.cpp
@@ -48,8 +48,10 @@ TEST_F(Test, BNF) {
  std::string Top{"program"};
  BNF bnf{
   {"program", {{"statement-list"}}},
-  {"statement-list", {{"statement-list", "statement"},
-                      {"statement"}, }},
+  {"statement-list", {
+                      {"statement"},
+                      {"statement-list", "statement"},
+                     }},
   {"statement", {{"assignment", ";"}}},
   {"assignment", {{"identifier", "=", "identifier"},
                   {"identifier", "=", "pp-number"}}}
-- 
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