From b8286f82dcc088a6e12e43c64d6c377aad7e4601 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Enrique=20Garc=C3=ADa=20Cota?= <kikito@gmail.com>
Date: Sat, 23 Apr 2011 20:17:43 +0200
Subject: [PATCH] nested tables

---
 inspect.lua           | 52 ++++++++++++++++++++++++++-----------------
 spec/inspect_spec.lua | 10 +++++++++
 2 files changed, 42 insertions(+), 20 deletions(-)

diff --git a/inspect.lua b/inspect.lua
index ccd6a1c..2a81b20 100644
--- a/inspect.lua
+++ b/inspect.lua
@@ -7,32 +7,44 @@
 
 -- public function
 
-local bufferMethods = {
-  add = function(self, ...)
-    local args = {...}
-    for i=1, #args do
-      table.insert(self.data, tostring(args[i]))
-    end
-    return self
-  end
-}
+local Buffer = {}
 
-local function newBuffer()
+function Buffer:new()
   return setmetatable( { data = {} }, { 
-    __index = bufferMethods,
-    __tostring = function(self) return table.concat(self.data) end
+    __index = Buffer,
+    __tostring = function(instance) return table.concat(instance.data) end
   } )
 end
 
-local function inspect(t)
-  local buffer = newBuffer()
-  buffer:add('{')
-  for i=1, #t do
-    if i > 1 then buffer:add(', ') end
-    buffer:add(tostring(t[i]))
+function Buffer:add(...)
+  local args = {...}
+  for i=1, #args do
+    table.insert(self.data, tostring(args[i]))
   end
-  buffer:add('}')
-  return tostring(buffer)
+  return self
+end
+
+function Buffer:addValue(v)
+  local tv = type(v)
+  if tv == 'table' then
+    self:add('{')
+    for i=1, #v do
+      if i > 1 then self:add(', ') end
+      self:addValue(v[i])
+    end
+    self:add('}')
+  else
+    self:add(tostring(v))
+  end
+  return self
+end
+
+local function newBuffer()
+
+end
+
+local function inspect(t)
+  return tostring(Buffer:new():addValue(t))
 end
 
 return inspect
diff --git a/spec/inspect_spec.lua b/spec/inspect_spec.lua
index 8a3a831..7a631e1 100644
--- a/spec/inspect_spec.lua
+++ b/spec/inspect_spec.lua
@@ -2,8 +2,18 @@ local inspect = require 'inspect'
 
 context( 'inspect', function()
 
+  test('Should work with numbers', function()
+    assert_equal(inspect(1), "1")
+    assert_equal(inspect(1.5), "1.5")
+    assert_equal(inspect(-3.14), "-3.14")
+  end)
+
   test('Should work with simple array-like tables', function()
     assert_equal(inspect({1,2,3}), "{1, 2, 3}" )
   end)
 
+  test('Should work with nested arrays', function()
+    assert_equal(inspect({1,2,3, {4,5}, 6}), "{1, 2, 3, {4, 5}, 6}" )
+  end)
+
 end)