first commit

intllib.lua

@@ -0,0 +1,91 @@
+
+intllib = { };
+
+local strings = { };
+
+local INTLLIB_DEBUG = true;
+
+local LANG = minetest.setting_get("language") or os.getenv("LANG") or "en";
+LANG = LANG:sub(1, 2);
+
+local TRACE;
+
+if (INTLLIB_DEBUG) then
+    TRACE = function ( s )
+        print("*** DEBUG: "..s);
+    end
+else
+    TRACE = function ( ) end
+end
+
+local repr2esc = {
+    ["n"] = "\n";
+    ["r"] = "";
+    ["t"] = "\t";
+    ["\\"] = "\\";
+    ["\""] = "\"";
+};
+
+local esc2repr = {
+    ["\n"] = "\\n";
+    ["\r"] = "";
+    ["\t"] = "\\t";
+    ["\\"] = "\\\\";
+    ["\\\""] = "\"";
+};
+
+local function parse ( s )
+    return s:gsub("\\([nrt\"\'\\\\])", function ( c )
+        return (repr2esc[c] or c);
+    end);
+end
+
+local function repr ( s )
+    return s:gsub("[\n\t\"\'\\\\]", function ( c )
+        return (esc2repr[c] or c);
+    end);
+end
+
+local function do_load_strings ( f )
+    local msgstr = { };
+    for line in f:lines() do
+        line = line:trim();
+        if ((line ~= "") and (line:sub(1, 1) ~= "#")) then
+            local pos = line:find("=", 1, true);
+            while (pos and (line:sub(pos - 1, pos - 1) == "\\")) do
+                local pos = line:find("=", pos + 1, true);
+            end
+            if (pos) then
+                local msgid = line:sub(1, pos - 1):trim();
+                local str = line:sub(pos + 1):trim();
+                msgstr[msgid] = parse(str);
+            end
+        end
+    end
+    return msgstr;
+end
+
+function intllib.load_strings ( modname )
+    local f, e = io.open(minetest.get_modpath(modname).."/locale/"..LANG..".txt");
+    if (f) then
+        local strings;
+        strings = do_load_strings(f);
+        f:close();
+        return strings;
+    else
+        return nil, "Could not load '"..LANG.."' texts: "..e;
+    end
+end
+
+local getters = { };
+
+function intllib.Getter ( modname )
+    if (not modname) then modname = minetest.get_current_modname(); end
+    if (not getters[modname]) then 
+        local msgstr = intllib.load_strings(modname) or { };
+        getters[modname] = function ( s )
+            return msgstr[repr(s)] or s;
+        end;
+    end
+    return getters[modname];
+end