xhj/embeded-gateway: 网关代码

xhj 4d99525703 first commit		6 月之前
..
impl	4d99525703 first commit	6 月之前
ast.hpp	4d99525703 first commit	6 月之前
ast_fwd.hpp	4d99525703 first commit	6 月之前
common.hpp	4d99525703 first commit	6 月之前
common_fwd.hpp	4d99525703 first commit	6 月之前
parse_tree.hpp	4d99525703 first commit	6 月之前
parse_tree_fwd.hpp	4d99525703 first commit	6 月之前
parse_tree_utils.hpp	4d99525703 first commit	6 月之前
parsetree.dtd	4d99525703 first commit	6 月之前
tree_to_xml.hpp	4d99525703 first commit	6 月之前
typeof.hpp	4d99525703 first commit	6 月之前