Index: uspace/dist/sysel/array.sy
===================================================================
--- uspace/dist/sysel/array.sy	(revision 94d484ac742127ae8d87a7e0bb630fafe11f65be)
+++ uspace/dist/sysel/array.sy	(revision 94d484ac742127ae8d87a7e0bb630fafe11f65be)
@@ -0,0 +1,46 @@
+--
+-- Copyright (c) 2010 Jiri Svoboda
+-- All rights reserved.
+--
+-- Redistribution and use in source and binary forms, with or without
+-- modification, are permitted provided that the following conditions
+-- are met:
+--
+-- o Redistributions of source code must retain the above copyright
+--   notice, this list of conditions and the following disclaimer.
+-- o Redistributions in binary form must reproduce the above copyright
+--   notice, this list of conditions and the following disclaimer in the
+--   documentation and/or other materials provided with the distribution.
+-- o The name of the author may not be used to endorse or promote products
+--   derived from this software without specific prior written permission.
+--
+-- THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+-- IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+-- OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+-- IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+-- INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+-- NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+-- DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+-- THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+-- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+-- THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+--
+
+class ArrayDemo is
+	fun Main() is
+		var a : int[,];
+		var i : int;
+
+		a = new int[3, 2];
+
+		a[0, 0] = 1;
+		a[1, 0] = 2;
+		a[2, 0] = 3;
+
+		i = 0;
+		while i < 3 do
+			Builtin.WriteLine(a[i, 0]);
+			i = i + 1;
+		end
+	end
+end
Index: uspace/dist/sysel/count.sy
===================================================================
--- uspace/dist/sysel/count.sy	(revision fa36f294e6a3f5cc4a846e9b33621971e0cc3d07)
+++ uspace/dist/sysel/count.sy	(revision 94d484ac742127ae8d87a7e0bb630fafe11f65be)
@@ -1,2 +1,30 @@
+--
+-- Copyright (c) 2010 Jiri Svoboda
+-- All rights reserved.
+--
+-- Redistribution and use in source and binary forms, with or without
+-- modification, are permitted provided that the following conditions
+-- are met:
+--
+-- o Redistributions of source code must retain the above copyright
+--   notice, this list of conditions and the following disclaimer.
+-- o Redistributions in binary form must reproduce the above copyright
+--   notice, this list of conditions and the following disclaimer in the
+--   documentation and/or other materials provided with the distribution.
+-- o The name of the author may not be used to endorse or promote products
+--   derived from this software without specific prior written permission.
+--
+-- THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+-- IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+-- OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+-- IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+-- INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+-- NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+-- DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+-- THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+-- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+-- THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+--
+
 class CountDemo is
 	fun Count(a : int; b : int) is
Index: uspace/dist/sysel/except.sy
===================================================================
--- uspace/dist/sysel/except.sy	(revision 94d484ac742127ae8d87a7e0bb630fafe11f65be)
+++ uspace/dist/sysel/except.sy	(revision 94d484ac742127ae8d87a7e0bb630fafe11f65be)
@@ -0,0 +1,53 @@
+--
+-- Copyright (c) 2010 Jiri Svoboda
+-- All rights reserved.
+--
+-- Redistribution and use in source and binary forms, with or without
+-- modification, are permitted provided that the following conditions
+-- are met:
+--
+-- o Redistributions of source code must retain the above copyright
+--   notice, this list of conditions and the following disclaimer.
+-- o Redistributions in binary form must reproduce the above copyright
+--   notice, this list of conditions and the following disclaimer in the
+--   documentation and/or other materials provided with the distribution.
+-- o The name of the author may not be used to endorse or promote products
+--   derived from this software without specific prior written permission.
+--
+-- THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+-- IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+-- OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+-- IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+-- INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+-- NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+-- DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+-- THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+-- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+-- THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+--
+
+class ExceptionDemo is
+	fun foo() : int is
+	        Builtin.WriteLine("Entered foo().");
+		raise new BaseException();
+	end
+
+	fun Main() is
+		do
+			foo();
+			foo();
+		except e : DerivedException do
+			Builtin.WriteLine("Caught derived exception.");
+		except e : BaseException do
+			Builtin.WriteLine("Caught base exception.");
+		finally do
+			Builtin.WriteLine("Finally.");
+		end
+	end
+end
+
+class BaseException is
+end
+
+class DerivedException : BaseException is
+end
Index: uspace/dist/sysel/hello.sy
===================================================================
--- uspace/dist/sysel/hello.sy	(revision fa36f294e6a3f5cc4a846e9b33621971e0cc3d07)
+++ uspace/dist/sysel/hello.sy	(revision 94d484ac742127ae8d87a7e0bb630fafe11f65be)
@@ -1,2 +1,30 @@
+--
+-- Copyright (c) 2010 Jiri Svoboda
+-- All rights reserved.
+--
+-- Redistribution and use in source and binary forms, with or without
+-- modification, are permitted provided that the following conditions
+-- are met:
+--
+-- o Redistributions of source code must retain the above copyright
+--   notice, this list of conditions and the following disclaimer.
+-- o Redistributions in binary form must reproduce the above copyright
+--   notice, this list of conditions and the following disclaimer in the
+--   documentation and/or other materials provided with the distribution.
+-- o The name of the author may not be used to endorse or promote products
+--   derived from this software without specific prior written permission.
+--
+-- THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+-- IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+-- OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+-- IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+-- INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+-- NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+-- DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+-- THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+-- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+-- THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+--
+
 class HelloWorld is
 	fun Main() is
Index: uspace/dist/sysel/hexec.sy
===================================================================
--- uspace/dist/sysel/hexec.sy	(revision 94d484ac742127ae8d87a7e0bb630fafe11f65be)
+++ uspace/dist/sysel/hexec.sy	(revision 94d484ac742127ae8d87a7e0bb630fafe11f65be)
@@ -0,0 +1,34 @@
+--
+-- Copyright (c) 2010 Jiri Svoboda
+-- All rights reserved.
+--
+-- Redistribution and use in source and binary forms, with or without
+-- modification, are permitted provided that the following conditions
+-- are met:
+--
+-- o Redistributions of source code must retain the above copyright
+--   notice, this list of conditions and the following disclaimer.
+-- o Redistributions in binary form must reproduce the above copyright
+--   notice, this list of conditions and the following disclaimer in the
+--   documentation and/or other materials provided with the distribution.
+-- o The name of the author may not be used to endorse or promote products
+--   derived from this software without specific prior written permission.
+--
+-- THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+-- IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+-- OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+-- IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+-- INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+-- NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+-- DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+-- THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+-- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+-- THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+--
+
+class HelenOSExecDemo is
+	fun Main() is
+		Builtin.Exec("/app/tester");
+		Builtin.Exec("/app/tester", "print1");
+	end
+end
Index: uspace/dist/sysel/inherit.sy
===================================================================
--- uspace/dist/sysel/inherit.sy	(revision fa36f294e6a3f5cc4a846e9b33621971e0cc3d07)
+++ uspace/dist/sysel/inherit.sy	(revision 94d484ac742127ae8d87a7e0bb630fafe11f65be)
@@ -1,2 +1,30 @@
+--
+-- Copyright (c) 2010 Jiri Svoboda
+-- All rights reserved.
+--
+-- Redistribution and use in source and binary forms, with or without
+-- modification, are permitted provided that the following conditions
+-- are met:
+--
+-- o Redistributions of source code must retain the above copyright
+--   notice, this list of conditions and the following disclaimer.
+-- o Redistributions in binary form must reproduce the above copyright
+--   notice, this list of conditions and the following disclaimer in the
+--   documentation and/or other materials provided with the distribution.
+-- o The name of the author may not be used to endorse or promote products
+--   derived from this software without specific prior written permission.
+--
+-- THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+-- IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+-- OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+-- IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+-- INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+-- NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+-- DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+-- THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+-- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+-- THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+--
+
 class A is
 	fun Foo() is
Index: uspace/dist/sysel/list.sy
===================================================================
--- uspace/dist/sysel/list.sy	(revision fa36f294e6a3f5cc4a846e9b33621971e0cc3d07)
+++ uspace/dist/sysel/list.sy	(revision 94d484ac742127ae8d87a7e0bb630fafe11f65be)
@@ -1,30 +1,29 @@
-
-class ListNode is
-	var value : int;
-
-	var prev : ListNode;
-	var next : ListNode;
-	var head : ListNode;
-
-	fun GetNext() : ListNode is
-		if next != head then
-			return next;
-		else
-			return nil;
-		end
-	end
-
-	fun GetPrev() : ListNode is
-		if prev != head then
-			return next;
-		else
-			return nil;
-		end
-	end
-
-	fun GetValue() : int is
-		return value;
-	end
-end
+--
+-- Copyright (c) 2010 Jiri Svoboda
+-- All rights reserved.
+--
+-- Redistribution and use in source and binary forms, with or without
+-- modification, are permitted provided that the following conditions
+-- are met:
+--
+-- o Redistributions of source code must retain the above copyright
+--   notice, this list of conditions and the following disclaimer.
+-- o Redistributions in binary form must reproduce the above copyright
+--   notice, this list of conditions and the following disclaimer in the
+--   documentation and/or other materials provided with the distribution.
+-- o The name of the author may not be used to endorse or promote products
+--   derived from this software without specific prior written permission.
+--
+-- THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+-- IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+-- OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+-- IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+-- INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+-- NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+-- DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+-- THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+-- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+-- THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+--
 
 class List is
@@ -59,4 +58,32 @@
 end
 
+class ListNode is
+	var value : int;
+
+	var prev : ListNode;
+	var next : ListNode;
+	var head : ListNode;
+
+	fun GetNext() : ListNode is
+		if next != head then
+			return next;
+		else
+			return nil;
+		end
+	end
+
+	fun GetPrev() : ListNode is
+		if prev != head then
+			return next;
+		else
+			return nil;
+		end
+	end
+
+	fun GetValue() : int is
+		return value;
+	end
+end
+
 class ListDemo is
 	fun Main() is
Index: uspace/dist/sysel/string.sy
===================================================================
--- uspace/dist/sysel/string.sy	(revision 94d484ac742127ae8d87a7e0bb630fafe11f65be)
+++ uspace/dist/sysel/string.sy	(revision 94d484ac742127ae8d87a7e0bb630fafe11f65be)
@@ -0,0 +1,34 @@
+--
+-- Copyright (c) 2010 Jiri Svoboda
+-- All rights reserved.
+--
+-- Redistribution and use in source and binary forms, with or without
+-- modification, are permitted provided that the following conditions
+-- are met:
+--
+-- o Redistributions of source code must retain the above copyright
+--   notice, this list of conditions and the following disclaimer.
+-- o Redistributions in binary form must reproduce the above copyright
+--   notice, this list of conditions and the following disclaimer in the
+--   documentation and/or other materials provided with the distribution.
+-- o The name of the author may not be used to endorse or promote products
+--   derived from this software without specific prior written permission.
+--
+-- THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+-- IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+-- OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+-- IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+-- INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+-- NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+-- DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+-- THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+-- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+-- THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+--
+
+class StringDemo is
+	fun Main() is
+		-- Concatenate some strings.
+		Builtin.WriteLine("One-" + "two-" + "three!");
+	end
+end
Index: uspace/dist/sysel/varargs.sy
===================================================================
--- uspace/dist/sysel/varargs.sy	(revision 94d484ac742127ae8d87a7e0bb630fafe11f65be)
+++ uspace/dist/sysel/varargs.sy	(revision 94d484ac742127ae8d87a7e0bb630fafe11f65be)
@@ -0,0 +1,51 @@
+--
+-- Copyright (c) 2010 Jiri Svoboda
+-- All rights reserved.
+--
+-- Redistribution and use in source and binary forms, with or without
+-- modification, are permitted provided that the following conditions
+-- are met:
+--
+-- o Redistributions of source code must retain the above copyright
+--   notice, this list of conditions and the following disclaimer.
+-- o Redistributions in binary form must reproduce the above copyright
+--   notice, this list of conditions and the following disclaimer in the
+--   documentation and/or other materials provided with the distribution.
+-- o The name of the author may not be used to endorse or promote products
+--   derived from this software without specific prior written permission.
+--
+-- THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+-- IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+-- OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+-- IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+-- INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+-- NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+-- DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+-- THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+-- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+-- THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+--
+
+class VariadicArgumentsDemo is
+	--- Variadic function example.
+	--
+	-- A variadic function is declared by marking its last argument
+	-- with the attribute 'packed'.
+	--
+	-- Note that we need to pass 'n' just because the array type
+	-- does not implement the Length property yet.
+	--
+	fun Print(n : int; args : string[], packed) is
+		var i : int;
+
+		i = 0;
+		while i < n do
+			Builtin.WriteLine(args[i]);
+			i = i + 1;
+		end
+	end
+
+	fun Main() is
+		Print(5, "One", "Two", "Three", "Four", "Five");
+	end
+end