diff --git a/.gitignore b/.gitignore
index 9c709e8..e201960 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,14 @@ UCD.*/
 ucd/
 ucd.*/
 *.dll
+
+lua-utf8.so
+lua-utf8.so.*
+luautf8-*.zip
+luautf8-*.rock
+
+*.gcov
+*.gcda
+*.gcno
+
+test_*.lua
diff --git a/parseucd.lua b/parseucd.lua
index cc0757a..171fee2 100644
--- a/parseucd.lua
+++ b/parseucd.lua
@@ -5,7 +5,7 @@
 --   - UCD\EastAsianWidth.txt
 --   - UCD\PropList.txt
 --   - UCD\UnicodeData.txt
---  
+--
 --  files can be downloaded at: http://unicode.org/Public/UCD/latest/UCD/
 
 
@@ -15,7 +15,7 @@ local function parse_UnicodeData()
     -- 1. name
     -- 2. general category
     -- 3. canonical combining class
-    -- 4. bidi class 
+    -- 4. bidi class
     -- 5. decomposition type/mapping
     -- 6. numberic type/value
     -- 7. numberic type/value
@@ -81,8 +81,8 @@ local function parse_EastAsianWidth()
                 assert(first, line)
             end
 
-            local first = tonumber(first, 16)
-            local last = tonumber(last, 16)
+            first = tonumber(first, 16)
+            last = tonumber(last, 16)
 
             if mark == 'W' or mark == 'F' then
                 for i = first, last do
@@ -139,8 +139,8 @@ local function parse_PropList(f)
                 assert(first, line)
             end
 
-            local first = tonumber(first, 16)
-            local last = tonumber(last, 16)
+            first = tonumber(first, 16)
+            last = tonumber(last, 16)
 
             if f(mark) then
                 for i = first, last do
@@ -157,7 +157,7 @@ local function parse_PropList(f)
     return ranges, lookup
 end
 
-local function get_ranges(list, func, proc)
+local function get_ranges(list, func)
     local first, last, step, offset
     local ranges = {}
     for i = 1, #list do
@@ -165,7 +165,7 @@ local function get_ranges(list, func, proc)
         local v = list[i]
         local res = not func or func(v)
         if type(v) == 'number' then
-            v_cp, v_offset = v
+            v_cp, v_offset = v, nil
         elseif v.cp then
             v_cp, v_offset = v.cp, v.offset
         end
@@ -180,7 +180,7 @@ local function get_ranges(list, func, proc)
                     local r = { first = first, last = last, step = step, offset = offset }
                     ranges[#ranges+1] = r
                 end
-                first, last, step = v_cp, v_cp
+                first, last, step = v_cp, v_cp, nil
                 offset = v_offset
             end
         end
@@ -192,6 +192,7 @@ local function get_ranges(list, func, proc)
     return ranges
 end
 
+--[[
 local function merge_ranges(...)
     local ranges = {}
     local lookup = {}
@@ -238,6 +239,7 @@ local function diff_ranges(base, sub, force)
     end
     return get_ranges(ranges)
 end
+--]]
 
 local function write_ranges(name, ranges)
     io.write("static struct range_table "..name.."_table[] = {\n")
diff --git a/rockspecs/luautf8-0.1.2-2.rockspec b/rockspecs/luautf8-0.1.2-2.rockspec
new file mode 100644
index 0000000..574ccda
--- /dev/null
+++ b/rockspecs/luautf8-0.1.2-2.rockspec
@@ -0,0 +1,23 @@
+package = "luautf8"
+version = "0.1.2-2"
+source = {
+   url = "https://github.com/starwing/luautf8/archive/0.1.2.tar.gz",
+   dir = "luautf8-0.1.2"
+}
+description = {
+   summary = "A UTF-8 support module for Lua",
+   detailed = [[
+   This module adds UTF-8 support to Lua. It's compatible with Lua "string" module.
+  ]],
+   homepage = "http://github.com/starwing/luautf8",
+   license = "MIT"
+}
+dependencies = {
+   "lua >= 5.1"
+}
+build = {
+   type = "builtin",
+   modules = {
+      ["lua-utf8"] = "lutf8lib.c"
+   }
+}
diff --git a/rockspecs/luautf8-0.1.3-1.rockspec b/rockspecs/luautf8-0.1.3-1.rockspec
new file mode 100644
index 0000000..65ed2f1
--- /dev/null
+++ b/rockspecs/luautf8-0.1.3-1.rockspec
@@ -0,0 +1,23 @@
+package = "luautf8"
+version = "0.1.3-1"
+source = {
+   url = "https://github.com/starwing/luautf8/archive/0.1.3.tar.gz",
+   dir = "luautf8-0.1.3"
+}
+description = {
+   summary = "A UTF-8 support module for Lua",
+   detailed = [[
+   This module adds UTF-8 support to Lua. It's compatible with Lua "string" module.
+]],
+   homepage = "http://github.com/starwing/luautf8",
+   license = "MIT"
+}
+dependencies = {
+   "lua >= 5.1"
+}
+build = {
+   type = "builtin",
+   modules = {
+      ["lua-utf8"] = "lutf8lib.c"
+   }
+}