add os.features

3 files changed, 67 insertions, 0 deletions

diff --git a/core/src/xmake/machine.c b/core/src/xmake/machine.c
index 547279bb9..16c3176f6 100644
--- a/core/src/xmake/machine.c
+++ b/core/src/xmake/machine.c
@@ -80,6 +80,7 @@ tb_int_t xm_os_getenv(lua_State* lua);
 tb_int_t xm_os_emptydir(lua_State* lua);
 tb_int_t xm_os_strerror(lua_State* lua);
 tb_int_t xm_os_getwinsize(lua_State* lua);
+tb_int_t xm_os_features(lua_State* lua);
 
 // the path functions
 tb_int_t xm_path_relative(lua_State* lua);
@@ -131,6 +132,7 @@ static luaL_Reg const g_os_functions[] =
 ,   { "emptydir",       xm_os_emptydir  }
 ,   { "strerror",       xm_os_strerror  }
 ,   { "getwinsize",     xm_os_getwinsize}
+,   { "features",       xm_os_features  }
 ,   { tb_null,          tb_null         }
 };
 
diff --git a/core/src/xmake/makefile b/core/src/xmake/makefile
index f3b2f97c0..f3196a4e5 100644
--- a/core/src/xmake/makefile
+++ b/core/src/xmake/makefile
@@ -36,6 +36,7 @@ xmake_C_FILES 			+= \
 						os/emptydir \
 						os/strerror \
 						os/getwinsize \
+                        os/features \
 						path/relative \
 						path/absolute \
 						path/translate \
diff --git a/core/src/xmake/os/features.c b/core/src/xmake/os/features.c
new file mode 100644
index 000000000..9c7ce4033
--- /dev/null
+++ b/core/src/xmake/os/features.c
@@ -0,0 +1,64 @@
+/*!The Make-like Build Utility based on Lua
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * Copyright (C) 2015 - 2017, TBOOX Open Source Group.
+ *
+ * @author      TitanSnow
+ * @file        features.c
+ *
+ */
+
+/* //////////////////////////////////////////////////////////////////////////////////////
+ * trace
+ */
+#define TB_TRACE_MODULE_NAME                "features"
+#define TB_TRACE_MODULE_DEBUG               (0)
+
+/* //////////////////////////////////////////////////////////////////////////////////////
+ * includes
+ */
+#include "prefix.h"
+
+/* //////////////////////////////////////////////////////////////////////////////////////
+ * implementation
+ */
+
+// get features
+tb_int_t xm_os_features(lua_State* lua)
+{
+    // features
+    const char* features_table[] = {
+#       ifdef XM_CONFIG_API_HAVE_READLINE
+            "readline"
+#       endif
+        ,   tb_null
+    };
+
+    // new array
+    lua_newtable(lua);
+
+    // insert
+    for (const char** p = features_table; *p; ++p)
+    {
+        lua_pushstring(lua, *p);
+        lua_rawseti(lua, -2, p - features_table + 1);
+    }
+
+    // ok
+    return 1;
+}