fix: clipboard module and pipeline with keyword properties

- Add clipboard.in and clipboard.out as aliases for clipboard.get
- Allow keywords (in, out, on, off, etc.) as property names after '.'
- Move clipboard module assembly to after InitializeClipboardBuiltins()

Test results:
  clipboard => {get, set, clear, in, out}
  clipboard.out => <builtin_function>
  "test" | clipboard.in => works (no error)
  "test" | upper => TEST

Author: half-arch

src/havel-lang/lexer/Lexer.cpp

@@ -34,6 +34,7 @@ const std::unordered_map<std::string, TokenType> Lexer::KEYWORDS = {
     {"enum", TokenType::Enum},
     {"on", TokenType::On},
     {"off", TokenType::Off},
+    {"out", TokenType::Out},
     {"when", TokenType::When},
     {"mode", TokenType::Mode},
     {"repeat", TokenType::Repeat},

src/havel-lang/lexer/Lexer.hpp

@@ -61,6 +61,7 @@ enum class TokenType {
   Enum,       // enum
   On,
   Off,
+  Out,      // for clipboard.out etc.
   When,
   Mode,
   Repeat,     // repeat

src/havel-lang/parser/Parser.cpp

@@ -2664,12 +2664,39 @@ Parser::parseMemberExpression(std::unique_ptr<havel::ast::Expression> object) {
   auto dotTok = at();  // Save token location before consuming
   advance(); // consume '.'
 
-  // Property names can be identifiers or certain keywords (like 'config')
+  // Property names can be identifiers or certain keywords
+  // Many keywords should be allowed as property names (e.g., clipboard.in, clipboard.out)
   if (at().type != havel::TokenType::Identifier &&
       at().type != havel::TokenType::Config &&
       at().type != havel::TokenType::Devices &&
       at().type != havel::TokenType::Modes &&
-      at().type != havel::TokenType::Mode) {
+      at().type != havel::TokenType::Mode &&
+      at().type != havel::TokenType::In &&
+      at().type != havel::TokenType::Out &&
+      at().type != havel::TokenType::On &&
+      at().type != havel::TokenType::Off &&
+      at().type != havel::TokenType::When &&
+      at().type != havel::TokenType::Loop &&
+      at().type != havel::TokenType::For &&
+      at().type != havel::TokenType::While &&
+      at().type != havel::TokenType::If &&
+      at().type != havel::TokenType::Else &&
+      at().type != havel::TokenType::Return &&
+      at().type != havel::TokenType::Ret &&
+      at().type != havel::TokenType::Fn &&
+      at().type != havel::TokenType::Let &&
+      at().type != havel::TokenType::Break &&
+      at().type != havel::TokenType::Continue &&
+      at().type != havel::TokenType::Switch &&
+      at().type != havel::TokenType::Case &&
+      at().type != havel::TokenType::Default &&
+      at().type != havel::TokenType::Match &&
+      at().type != havel::TokenType::Struct &&
+      at().type != havel::TokenType::Enum &&
+      at().type != havel::TokenType::Try &&
+      at().type != havel::TokenType::Catch &&
+      at().type != havel::TokenType::Finally &&
+      at().type != havel::TokenType::Throw) {
     failAt(at(), "Expected property name after '.'");
   }
 

src/havel-lang/runtime/Interpreter.cpp

@@ -4787,16 +4787,6 @@ void Interpreter::InitializeSystemBuiltins() {
         return HavelValue(arr);
       }));
 
-  // Expose as module objects
-  auto clip = std::make_shared<std::unordered_map<std::string, HavelValue>>();
-  if (auto v = environment->Get("clipboard.get"))
-    (*clip)["get"] = *v;
-  if (auto v = environment->Get("clipboard.set"))
-    (*clip)["set"] = *v;
-  if (auto v = environment->Get("clipboard.clear"))
-    (*clip)["clear"] = *v;
-  environment->Define("clipboard", HavelValue(clip));
-
   // Create audio module
   auto audioMod =
       std::make_shared<std::unordered_map<std::string, HavelValue>>();
@@ -5910,6 +5900,19 @@ void Interpreter::InitializeClipboardBuiltins() {
 
     environment->Define("clipboardmanager", HavelValue(clipMgrObj));
   }
+  
+  // Assemble clipboard module object (after all functions are defined)
+  auto clip = std::make_shared<std::unordered_map<std::string, HavelValue>>();
+  if (auto v = environment->Get("clipboard.get")) {
+    (*clip)["get"] = *v;
+    (*clip)["in"] = *v;   // Alias for get
+    (*clip)["out"] = *v;  // Alias for get (returns current clipboard content)
+  }
+  if (auto v = environment->Get("clipboard.set"))
+    (*clip)["set"] = *v;
+  if (auto v = environment->Get("clipboard.clear"))
+    (*clip)["clear"] = *v;
+  environment->Define("clipboard", HavelValue(clip));
 }
 
 void Interpreter::InitializeTextBuiltins() {