libs/web: add template parser reimplemented in C

1 files changed, 62 insertions, 0 deletions

diff --git a/libs/web/src/template_lualib.c b/libs/web/src/template_lualib.c
new file mode 100644
index 000000000..685613fbd
--- /dev/null
+++ b/libs/web/src/template_lualib.c
@@ -0,0 +1,62 @@
+/*
+ * LuCI Template - Lua binding
+ *
+ *   Copyright (C) 2009 Jo-Philipp Wich <xm@subsignal.org>
+ *
+ *  Licensed 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.
+ */
+
+#include "template_lualib.h"
+
+int template_L_parse(lua_State *L)
+{
+	const char *file = luaL_checkstring(L, 1);
+	struct template_parser parser;
+	int lua_status;
+
+	if( (parser.fd = open(file, O_RDONLY)) > 0 )
+	{
+		parser.flags   = 0;
+		parser.bufsize = 0;
+		parser.state   = T_STATE_TEXT_NEXT;
+		
+		if( !(lua_status = lua_load(L, template_reader, &parser, file)) )
+		{
+			return 1;
+		}
+		else
+		{
+			lua_pushnil(L);
+			lua_pushinteger(L, lua_status);
+			lua_pushlstring(L, parser.out, parser.outsize);
+			return 3;
+		}
+	}
+
+	lua_pushnil(L);
+	lua_pushinteger(L, 255);
+	lua_pushstring(L, "No such file or directory");
+	return 3;
+}
+
+/* module table */
+static const luaL_reg R[] = {
+	{"parse",	template_L_parse},
+	{NULL,		NULL}
+};
+
+LUALIB_API int luaopen_luci_template_parser(lua_State *L) {
+	luaL_register(L, TEMPLATE_LUALIB_META, R);
+	return 1;
+}
+