add option module

1 files changed, 92 insertions, 0 deletions

diff --git a/xmake/scripts/base/option.lua b/xmake/scripts/base/option.lua
new file mode 100644
index 000000000..a4d7ce1bf
--- /dev/null
+++ b/xmake/scripts/base/option.lua
@@ -0,0 +1,92 @@
+--!The Automatic Cross-platform Build Tool
+-- 
+-- XMake is free software; you can redistribute it and/or modify
+-- it under the terms of the GNU Lesser General Public License as published by
+-- the Free Software Foundation; either version 2.1 of the License, or
+-- (at your option) any later version.
+-- 
+-- XMake is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU Lesser General Public License for more details.
+-- 
+-- You should have received a copy of the GNU Lesser General Public License
+-- along with XMake; 
+-- If not, see <a href="http://www.gnu.org/licenses/"> http://www.gnu.org/licenses/</a>
+-- 
+-- Copyright (C) 2009 - 2015, ruki All rights reserved.
+--
+-- @author      ruki
+-- @file        option.lua
+--
+
+-- define module: option
+local option = {}
+
+-- init _OPTIONS.metatable to always use lowercase keys
+local _OPTIONS_metatable = 
+{
+    __index = function(table, key)
+        -- make lowercase key
+        if type(key) == "string" then
+            key = key:lower()
+        end
+        return rawget(table, key)
+    end
+,   __newindex = function(table, key, value)
+        -- make lowercase key
+        if type(key) == "string" then
+            key = key:lower()
+        end
+        rawset(table, key, value)
+    end
+}
+xmake._OPTIONS = xmake._OPTIONS or {}
+setmetatable(xmake._OPTIONS, _OPTIONS_metatable)
+
+-- done the option
+function option.done(argv)
+
+    -- check
+    assert(option._MENU)
+
+    -- parse _ARGV to _OPTIONS
+    for i, arg in ipairs(argv) do
+
+        -- parse key and value
+        local key, value
+        local i = arg:find("=", 1, true)
+
+        -- key=value?
+        if i then
+            key = arg:sub(1, i - 1)
+            value = arg:sub(i + 1)
+        -- only key?
+        else
+            key = arg
+            value = ""
+        end
+
+        -- -k?
+        if key:startswith("-") then
+            xmake._OPTIONS[key:sub(2)] = value
+        -- --key=value?
+        elseif key:startswith("--") then
+           xmake. _OPTIONS[key:sub(3)] = value
+        end
+    end
+
+    -- ok
+    return true
+end
+
+-- print the help option
+function option.help()
+
+    -- check
+    assert(option._MENU)
+
+end  
+
+-- return module: option
+return option