From 536168eee4478ce2e22d15a3c41be93e306259d0 Mon Sep 17 00:00:00 2001
From: zawz <zawz@hotmail.fr>
Date: Wed, 11 Aug 2021 11:56:44 +0200
Subject: [PATCH] fix for in empty value

---
 include/struc.hpp | 4 +++-
 src/generate.cpp  | 7 +++++--
 src/parse.cpp     | 1 +
 3 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/include/struc.hpp b/include/struc.hpp
index 3f6ae6c..50b1bb9 100644
--- a/include/struc.hpp
+++ b/include/struc.hpp
@@ -521,7 +521,7 @@ public:
 class for_block : public block
 {
 public:
-  for_block(variable* in=nullptr, arglist* args=nullptr, list* lst=nullptr) { type=_obj::block_for; var=in; iter=args; ops=lst; }
+  for_block(variable* in=nullptr, arglist* args=nullptr, list* lst=nullptr, bool ii=false) { type=_obj::block_for; var=in; iter=args; ops=lst; in_val=ii; }
   ~for_block() {
     if(iter!=nullptr) delete iter;
     if(ops!=nullptr) delete ops;
@@ -533,6 +533,8 @@ public:
   arglist* iter;
   list* ops;
 
+  bool in_val;
+
   std::string generate(int ind, generate_context* ctx);
   std::string generate(int ind) { return this->generate(ind, nullptr); }
 };
diff --git a/src/generate.cpp b/src/generate.cpp
index e303dc3..e12cca4 100644
--- a/src/generate.cpp
+++ b/src/generate.cpp
@@ -202,8 +202,11 @@ std::string for_block::generate(int ind, generate_context* ctx)
   std::string ret;
 
   ret += "for "+var->generate(ind);
-  if(iter != nullptr)
-    ret += " in " + iter->generate(ind);
+  if(in_val) {
+    ret += " in";
+    if(iter != nullptr)
+      ret += " " + iter->generate(ind);
+  }
   ret += '\n';
   ret += indented("do\n", ind);
   ret += ops->generate(ind+1);
diff --git a/src/parse.cpp b/src/parse.cpp
index ce7d67a..6ac2e57 100644
--- a/src/parse.cpp
+++ b/src/parse.cpp
@@ -1496,6 +1496,7 @@ std::pair<for_block*, parse_context> parse_for(parse_context ctx)
     auto pp = parse_arglist(ctx, false);
     ret->iter = pp.first;
     ctx = pp.second;
+    ret->in_val=true;
   }
   else if(wp.first != "")
   {