zhanglei · June 13, 2013 09:24 · Jun 24, 2012 · Jun 24, 2012 · Jun 24, 2012 · Jun 24, 2012
diff --git a/ltp_util → ltp_util.lua b/ltp_util → ltp_util.lua
diff --git a/ltp_util b/ltp_util
@@ -0,0 +1,60 @@
+-- 在 http://www.savarese.com/software/ltp/ 获取 ltp
+-- lposix 可以在 https://github.com/rrthomas/luaposix.git 获取
+-- 把 ltp 目录和当前文件放到 ngx_lua 可搜索的地方 在希望使用模板的nginx配置中添加以下定义即可
+local ltp = require 'ltp.template'
+local posix = nil
+do
+    local ok, ret = pcall(require, 'posix')
+    if ok then
+        posix = ret
+    end
+end
+local ltp_cache = {}
+
+module(..., package.seeall)
+
+-- in: filename
+-- in: mode - 1 force cache, 2 nocache, 3 mtime cache
+-- out: render function
+function loadltp(path, mode)
+    mode = mode or 1
+    if mode == 3 and not posix then
+        mode = 2
+    end
+    if ltp_cache[path] then
+        if mode == 1 then
+            return ltp_cache[path][2]
+        elseif mode == 2 then
+            ltp_cache[path] = nil
+        elseif mode == 3 then
+            if assert(posix.stat(path)).mtime < ltp_cache[1] then
+                return ltp_cache[path][2]
+            else
+                ltp_cache[path] = nil
+            end
+        end
+    end
+
+    local con = assert(io.open(ngx.var.request_filename, 'rb')):read('*a')
+    local str = assert(ltp.compile_template_as_function(con, '<?', '?>'))
+    local fn = assert(loadstring(str))()
+
+    ltp_cache[path] = {ngx.time(), fn}
+
+    return fn
+end
+
+function render(path)
+    path = path or ngx.var.request_filename
+
+    local fn = assert(loadltp(path))
+
+    local ctx = {}
+    setmetatable(ctx, {__index = _G})
+
+    local ret = {}
+    setfenv(fn, ctx)
+    fn(ret)
+
+    ngx.print(ret)
+end
diff --git a/lua_in_html_v2.conf b/lua_in_html_v2.conf
@@ -0,0 +1,8 @@
+# 注意不要让其他 nginx 的 location 定义覆盖了这里的，那样你的源码就暴露了！！！！！！
+# nginx 很容易出这样的问题
+
+    location ~ \.ltp$ {
+        default_type text/html;
+
+        content_by_lua " require 'ltp_util'.render() ";
+    }
diff --git a/lua_in_html.conf b/lua_in_html.conf
@@ -18,6 +18,6 @@ setmetatable(ctx, {__index = _G})
 setfenv(fn, ctx)
 fn(ret)
 
-ngx.print(table.concat(ret))
+ngx.print(ret)
     ";
 }
diff --git a/a.ltp b/a.ltp
@@ -0,0 +1,9 @@
+"abc"
+<?= 124 ?>
+<?= a ?>
+<? local x = 12
+if math.random(1, 5) > 1 then ?>
+xxx
+<? else ?>
+yyy
+<? end ?>
diff --git a/lua_in_html.conf b/lua_in_html.conf
@@ -0,0 +1,23 @@
+#在 http://www.savarese.com/software/ltp/ 下载 http://www.savarese.com/downloads/ltp/ltp-1.0.4.tar.bz2
+#把 ltp 目录放到 ngx_lua 可搜索的地方 在希望使用模板的nginx配置中添加以下定义即可
+#模板中可使用任意 lua 模块，如果想设置通用的对象，可在 ctx 变量中指定
+#模板例子见 a.ltp
+
+location ~ \.ltp$ {
+    content_by_lua "
+local ctx = {
+    a = 2;
+}
+
+local ltp = require 'ltp.template'
+local con = assert(io.open(ngx.var.request_filename, 'rb')):read('*a')
+local str = assert(ltp.compile_template_as_function(con, '<?', '?>'))
+local fn = assert(loadstring(str))()
+local ret = {}
+setmetatable(ctx, {__index = _G})
+setfenv(fn, ctx)
+fn(ret)
+
+ngx.print(table.concat(ret))
+    ";
+}