Add support for Lua 5.2 and cjson.new

Update all Lua scripts to use new module init style everywhere:
	local json = require "cjson"

Lua CJSON does not register a global table under Lua 5.2. The global
table can be disabled under Lua 5.1 with DISABLE_CJSON_GLOBAL.

Other changes:
- Store CJSON configuration as an upvalue for each function.
- Add "cjson.new" function to create another module table with a
  separate configuration.
- Add _NAME and _VERSION variables.

5 files changed, 16 insertions, 16 deletions

diff --git a/tests/bench.lua b/tests/bench.lua
index fdd0bb0..c81213d 100755
--- a/tests/bench.lua
+++ b/tests/bench.lua
@@ -72,7 +72,7 @@ function bench_file(filename)
     return benchmark(tests, 0.1, 5)
 end
 
-cjson.encode_keep_buffer(true)
+json.encode_keep_buffer(true)
 
 for i = 1, #arg do
     local results = bench_file(arg[i])
diff --git a/tests/common.lua b/tests/common.lua
index f3dc6f7..7472a10 100644
--- a/tests/common.lua
+++ b/tests/common.lua
@@ -1,4 +1,4 @@
-require "cjson"
+local json = require "cjson"
 
 -- Misc routines to assist with CJSON testing
 --
@@ -77,8 +77,8 @@ function serialise_value(value, indent, depth)
     if indent == nil then indent = "" end
     if depth == nil then depth = 0 end
 
-    if value == cjson.null then
-        return "cjson.null"
+    if value == json.null then
+        return "json.null"
     elseif type(value) == "string" then
         return string.format("%q", value)
     elseif type(value) == "nil" or type(value) == "number" or
diff --git a/tests/decode.lua b/tests/decode.lua
index cac29e6..89354cd 100755
--- a/tests/decode.lua
+++ b/tests/decode.lua
@@ -7,8 +7,8 @@
 -- ./decode.lua test.json
 
 require "common"
-require "cjson"
+local json = require "cjson"
 
 local json_text = file_load(arg[1])
-local t = cjson.decode(json_text)
+local t = json.decode(json_text)
 print(serialise_value(t))
diff --git a/tests/encode.lua b/tests/encode.lua
index f13787c..a8d749a 100755
--- a/tests/encode.lua
+++ b/tests/encode.lua
@@ -7,7 +7,7 @@
 -- ./encode.lua lua_data.lua
 
 require "common"
-require "cjson"
+local json = require "cjson"
 
 function get_lua_table(file)
         local func = loadstring("data = " .. file_load(file))
@@ -23,6 +23,6 @@ function get_lua_table(file)
 end
 
 local t = get_lua_table(arg[1])
-print(cjson.encode(t))
+print(json.encode(t))
 
 -- vi:ai et sw=4 ts=4:
diff --git a/tests/test.lua b/tests/test.lua
index bdae6ea..99ac73a 100755
--- a/tests/test.lua
+++ b/tests/test.lua
@@ -112,8 +112,8 @@ local decode_numeric_tests = {
 
 local encode_table_tests = {
     function()
-        cjson.encode_sparse_array(true, 2, 3)
-        cjson.encode_max_depth(5)
+        json.encode_sparse_array(true, 2, 3)
+        json.encode_max_depth(5)
         return "Setting sparse array (true, 2, 3) / max depth (5)"
     end,
     { json.encode, { { [3] = "sparse test" } },
@@ -211,19 +211,19 @@ local escape_tests = {
 local locale_tests = {
     function ()
         os.setlocale("cs_CZ")
-        cjson.update_locale()
+        json.update_locale()
         return "Setting locale to cs_CZ (comma separator)"
     end,
     { json.encode, { 1.5 }, true, { '1.5' } },
     { json.decode, { "[ 10, \"test\" ]" }, true, { { 10, "test" } } },
     function ()
         os.setlocale("C")
-        cjson.update_locale()
+        json.update_locale()
         return "Reverting locale to POSIX"
     end
 }
 
-print(string.format("Testing Lua CJSON version %s\n", cjson.version))
+print(string.format("Testing Lua CJSON version %s\n", json.version))
 
 run_test_group("decode simple value", decode_simple_tests)
 run_test_group("encode simple value", encode_simple_tests)
@@ -232,7 +232,7 @@ run_test_group("decode numeric", decode_numeric_tests)
 -- INCLUDE:
 -- - Sparse array exception..
 -- - ..
--- cjson.encode_sparse_array(true, 2, 3)
+-- json.encode_sparse_array(true, 2, 3)
 
 run_test_group("encode table", encode_table_tests)
 run_test_group("decode error", decode_error_tests)
@@ -240,8 +240,8 @@ run_test_group("encode error", encode_error_tests)
 run_test_group("escape", escape_tests)
 run_test_group("locale", locale_tests)
 
-cjson.refuse_invalid_numbers(false)
-cjson.encode_max_depth(20)
+json.refuse_invalid_numbers(false)
+json.encode_max_depth(20)
 for i = 1, #arg do
     run_test("decode cycle " .. arg[i], test_decode_cycle, { arg[i] },
              true, { true })