Add template support

third-party/lua-resty-template-master/lib/resty/template/html.lua

@@ -0,0 +1,51 @@
+local template = require "resty.template"
+local setmetatable = setmetatable
+local escape = template.escape
+local concat = table.concat
+local pairs = pairs
+local type = type
+
+local function tag(name, content, attr)
+    local r, a, content = {}, {}, content or attr
+    r[#r + 1] = "<"
+    r[#r + 1] = name
+    if attr then
+        for k, v in pairs(attr) do
+            if type(k) == "number" then
+                a[#a + 1] = escape(v)
+            else
+                a[#a + 1] = k .. '="' .. escape(v) .. '"'
+            end
+        end
+        if #a > 0 then
+            r[#r + 1] = " "
+            r[#r + 1] = concat(a, " ")
+        end
+    end
+    if type(content) == "string" then
+        r[#r + 1] = ">"
+        r[#r + 1] = escape(content)
+        r[#r + 1] = "</"
+        r[#r + 1] = name
+        r[#r + 1] = ">"
+    else
+        r[#r + 1] = " />"
+    end
+    return concat(r)
+end
+
+local html = { __index = function(_, name)
+    return function(attr)
+        if type(attr) == "table" then
+            return function(content)
+                return tag(name, content, attr)
+            end
+        else
+            return tag(name, attr)
+        end
+    end
+end }
+
+template.html = setmetatable(html, html)
+
+return template.html