Use optional dependencies to only load once and re-add support for escapes

1 files changed, 70 insertions, 0 deletions

diff --git a/init.lua b/init.lua
index e69de29..9eeea6c 100644
--- a/init.lua
+++ b/init.lua
@@ -0,0 +1,70 @@
+
+-- Support the old multi-load method
+intllib = intllib or {}
+
+local strings = {}
+
+local LANG = minetest.setting_get("language") or os.getenv("LANG") or "en"
+LANG = LANG:sub(1, 2)
+
+local escapes = {
+	["\\"] = "\\",
+	["n"]  = "\n",
+	["="]  = "=",
+}
+
+local function unescape(s)
+	return s:gsub("([\\]?)\\(.)", function(slash, what)
+		if slash and (slash ~= "") then
+			return "\\"..what
+		else
+			return escapes[what] or what
+		end
+	end)
+end
+
+
+local function find_eq(s)
+	for slashes, pos in s:gmatch("([\\]*)=()") do
+		if (slashes:len() % 2) == 0 then
+			return pos - 1
+		end
+	end
+end
+
+
+function load_strings(modname)
+	local modpath = minetest.get_modpath(modname)
+	local file, err = io.open(modpath.."/locale/"..LANG..".txt", "r")
+	if not file then
+		return nil
+	end
+	local strings = {}
+	for line in file:lines() do
+		line = line:trim()
+		if line ~= "" and line:sub(1, 1) ~= "#" then
+			local pos = find_eq(line)
+			if pos then
+				local msgid = unescape(line:sub(1, pos - 1):trim())
+				strings[msgid] = unescape(line:sub(pos + 1):trim())
+			end
+		end
+	end
+	file:close()
+	return strings
+end
+
+-- Support the old multi-load method
+intllib.getters = intllib.getters or {}
+
+function intllib.Getter(modname)
+	modname = modname or minetest.get_current_modname()
+	if not intllib.getters[modname] then 
+		local msgstr = load_strings(modname) or {}
+		intllib.getters[modname] = function (s)
+			return msgstr[s] or s
+		end
+	end
+	return intllib.getters[modname]
+end
+