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65 lines
1.6 KiB
Lua
65 lines
1.6 KiB
Lua
local unpack = table.unpack or unpack
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local registry = {}
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local current_namespace
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local fallback_namespace
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local s = {
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_COPYRIGHT = "Copyright (c) 2012 Olivine Labs, LLC.",
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_DESCRIPTION = "A simple string key/value store for i18n or any other case where you want namespaced strings.",
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_VERSION = "Say 1.3",
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set_namespace = function(self, namespace)
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current_namespace = namespace
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if not registry[current_namespace] then
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registry[current_namespace] = {}
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end
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end,
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set_fallback = function(self, namespace)
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fallback_namespace = namespace
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if not registry[fallback_namespace] then
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registry[fallback_namespace] = {}
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end
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end,
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set = function(self, key, value)
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registry[current_namespace][key] = value
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end,
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}
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local __meta = {
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__call = function(self, key, vars)
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if vars ~= nil and type(vars) ~= "table" then
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error(("expected parameter table to be a table, got '%s'"):format(type(vars)), 2)
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end
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vars = vars or {}
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local str = registry[current_namespace][key] or registry[fallback_namespace][key]
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if str == nil then
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return nil
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end
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str = tostring(str)
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local strings = {}
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for i = 1, vars.n or #vars do
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table.insert(strings, tostring(vars[i]))
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end
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return #strings > 0 and str:format(unpack(strings)) or str
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end,
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__index = function(self, key)
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return registry[key]
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end,
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}
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s:set_fallback('en')
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s:set_namespace('en')
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s._registry = registry
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return setmetatable(s, __meta)
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