From 3d70950f61980d0268356124b9cc4753dfd6265e Mon Sep 17 00:00:00 2001
From: André Aparício <aparicio99@gmail.com>
Date: Tue, 3 Jul 2012 00:20:05 +0100
Subject: Parser&Walker: Support for loop without list

---
 bashast/bashast.g             |  8 ++++----
 bashast/libbashWalker.g       | 10 +++++++---
 scripts/compound_command.bash | 12 ++++++++++++
 3 files changed, 23 insertions(+), 7 deletions(-)

diff --git a/bashast/bashast.g b/bashast/bashast.g
index f7ce358..e2702d0 100644
--- a/bashast/bashast.g
+++ b/bashast/bashast.g
@@ -530,11 +530,11 @@ semiel
 for_expr
 	:	FOR BLANK?
 		(
-			name wspace
+			name
 			(
-				IN for_each_value* BLANK? (SEMIC|EOL) wspace?
-				|SEMIC wspace?
-				|
+				wspace IN for_each_value* BLANK? (SEMIC|EOL) wspace?
+				| wspace? SEMIC wspace?
+				| wspace
 			) DO wspace command_list semiel DONE -> ^(FOR name for_each_value* command_list)
 			|	LLPAREN EOL?
 				// initilization
diff --git a/bashast/libbashWalker.g b/bashast/libbashWalker.g
index 0c21ccd..648dd53 100644
--- a/bashast/libbashWalker.g
+++ b/bashast/libbashWalker.g
@@ -842,11 +842,11 @@ for_expr
 @declarations {
 	ANTLR3_MARKER commands_index;
 	std::vector<std::string> splitted_values;
+	bool in_array = false;
 
 	ANTLR3_MARKER condition_index;
 }
 	:^(FOR libbash_string=name_base
-		// Empty value as $@ is not supported currently
 		(string_expr
 		{
 			// Word splitting happens here
@@ -854,10 +854,11 @@ for_expr
 				splitted_values.push_back($string_expr.libbash_value);
 			else
 				walker->split_word($string_expr.libbash_value, splitted_values);
+			in_array = true;
 		}
-		)+
+		)*
 		{
-			if(splitted_values.empty())
+			if(splitted_values.empty() && in_array)
 			{
 				//skip the body
 				seek_to_next_tree(ctx);
@@ -865,6 +866,9 @@ for_expr
 			}
 			else
 			{
+				if(!in_array)
+					walker->resolve_array<std::string>("*", splitted_values);
+
 				commands_index = INDEX();
 				for(auto iter = splitted_values.begin(); iter != splitted_values.end(); ++iter)
 				{
diff --git a/scripts/compound_command.bash b/scripts/compound_command.bash
index 36161fe..fe3eac4 100644
--- a/scripts/compound_command.bash
+++ b/scripts/compound_command.bash
@@ -84,6 +84,18 @@ do
     done
 done
 
+function positional_for()
+{
+    for arg; do
+      echo $arg
+    done
+
+    for arg do
+      echo $arg
+    done
+}
+positional_for foo bar
+
 i=0;
 while [ $i != 4 ]
 do
-- 
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