Creating basic XmlMarkup object.

1 files changed, 80 insertions, 0 deletions

diff --git a/lib/xmllib.lua b/lib/xmllib.lua
new file mode 100644
index 0000000..c3d6358
--- /dev/null
+++ b/lib/xmllib.lua
@@ -0,0 +1,80 @@
+local function xml_escape(str)
+    return string.gsub(str, "&", "&")
+end
+
+local function process_comment(table, a)
+    return "<!-- " .. a .. " -->"
+end
+
+local function process_tag(table, key, a)
+    local middle, options, options_str, k, v, b
+    
+    middle = ""
+    options = {}
+    
+    if type(a) == "table" then
+        for k, v in ipairs(a) do
+            middle = middle .. v
+        end
+        for k, v in pairs(a) do
+            if (type(k) == "string") then
+                options[k] = string.gsub(v, '"', '\\"')
+            end
+        end
+    elseif type(a) == "string" then
+        middle = xml_escape(a)
+    end
+    
+    if middle ~= "" then
+        options_str = ""
+        for k, v in pairs(options) do
+            if (v == "") then
+                options_str = " " .. options_str .. k
+            else
+                options_str = " " .. options_str .. k .. '="' .. v .. '"'
+            end
+        end
+        return "<" .. key .. options_str .. ">" .. middle .. "</" .. key .. ">"
+    else
+        return "<" .. key .. " />"
+    end
+end
+
+local xmlmarkup_metatable = {
+    __index = function(table, key)
+        local k = key
+        return function(t, a) return process_tag(t, k, a) end
+    end
+}
+
+function NewXmlMarkup()
+    local r = {
+        comment = process_comment,
+    }
+    
+    setmetatable(r, xmlmarkup_metatable)
+    
+    return r
+end
+
+--[[
+
+xm = NewXmlMarkup()
+
+s = xm:html {
+    xm:head {
+        xm:title "Test"
+    },
+    xm:body {
+        bgcolor = "#ffeedd",
+    
+        "Normal test",
+        xm:br(),
+        xm:b "Bold test.",
+        xm:comment "Hi there...",
+    }
+}
+
+print(s)
+
+]]--