tibia-client/modules/corelib/util.lua

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2012-06-26 00:13:30 +02:00
-- @docfuncs @{
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function print(...)
local msg = ""
for i,v in ipairs({...}) do
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msg = msg .. tostring(v) .. "\t"
end
g_logger.log(LogInfo, msg)
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end
function pinfo(msg)
g_logger.log(LogInfo, msg)
end
function perror(msg)
g_logger.log(LogError, msg)
end
function pwarning(msg)
g_logger.log(LogWarning, msg)
end
function pdebug(msg)
g_logger.log(LogDebug, msg)
end
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function fatal(msg)
g_logger.log(LogFatal, msg)
end
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function exit()
g_app.exit()
end
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function quit()
g_app.quit()
end
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function connect(object, arg1, arg2, arg3)
local signalsAndSlots
local pushFront
if type(arg1) == 'string' then
signalsAndSlots = { [arg1] = arg2 }
pushFront = arg3
else
signalsAndSlots = arg1
pushFront = arg2
end
for signal,slot in pairs(signalsAndSlots) do
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if not object[signal] then
local mt = getmetatable(object)
if mt and type(object) == 'userdata' then
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object[signal] = function(...)
return signalcall(mt[signal], ...)
end
end
end
if not object[signal] then
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object[signal] = slot
elseif type(object[signal]) == 'function' then
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object[signal] = { object[signal] }
end
if type(object[signal]) == 'table' then
if pushFront then
table.insert(object[signal], 1, slot)
else
table.insert(object[signal], #object[signal]+1, slot)
end
end
end
end
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function disconnect(object, signalsAndSlots)
for signal,slot in pairs(signalsAndSlots) do
if not object[signal] then
elseif type(object[signal]) == 'function' then
if object[signal] == slot then
object[signal] = nil
end
elseif type(object[signal]) == 'table' then
for k,func in pairs(object[signal]) do
if func == slot then
table.remove(object[signal], k)
if #object[signal] == 1 then
object[signal] = object[signal][1]
end
break
end
end
end
end
end
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function newclass()
local class = {}
function class.internalCreate()
local instance = {}
for k,v in pairs(class) do
instance[k] = v
end
return instance
end
class.create = class.internalCreate
return class
end
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function extends(base)
local derived = {}
function derived.internalCreate()
local instance = base.create()
for k,v in pairs(derived) do
instance[k] = v
end
return instance
end
derived.create = derived.internalCreate
return derived
end
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function runinsandbox(func, ...)
if type(func) == 'string' then
func, err = loadfile(resolvepath(func, 2))
if not func then
error(err)
end
end
local env = { }
local oldenv = getfenv(0)
setmetatable(env, { __index = oldenv } )
setfenv(0, env)
func(...)
setfenv(0, oldenv)
return env
end
function loadasmodule(name, file)
file = file or resolvepath(name, 2)
if package.loaded[name] then
return package.loaded[name]
end
local env = runinsandbox(file)
package.loaded[name] = env
return env
end
local function module_loader(modname)
local module = g_modules.getModule(modname)
if not module then
return '\n\tno module \'' .. modname .. '\''
end
return function()
if not module:load() then
error('unable to load required module ' .. modname)
end
return module:getSandbox()
end
end
table.insert(package.loaders, 1, module_loader)
function import(table)
assert(type(table) == 'table')
local env = getfenv(2)
for k,v in pairs(table) do
env[k] = v
end
end
function export(what, key)
if key ~= nil then
_G[key] = what
else
for k,v in pairs(what) do
_G[k] = v
end
end
end
function unexport(key)
if type(key) == 'table' then
for _k,v in pairs(key) do
_G[v] = nil
end
else
_G[key] = nil
end
end
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function getfsrcpath(depth)
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depth = depth or 2
local info = debug.getinfo(1+depth, "Sn")
local path
if info.short_src then
path = info.short_src:match("(.*)/.*")
end
if not path then
path = '/'
elseif path:sub(0, 1) ~= '/' then
path = '/' .. path
end
return path
end
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function resolvepath(filePath, depth)
if not filePath then return nil end
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depth = depth or 1
if filePath then
if filePath:sub(0, 1) ~= '/' then
local basepath = getfsrcpath(depth+1)
if basepath:sub(#basepath) ~= '/' then basepath = basepath .. '/' end
return basepath .. filePath
else
return filePath
end
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else
local basepath = getfsrcpath(depth+1)
if basepath:sub(#basepath) ~= '/' then basepath = basepath .. '/' end
return basepath
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end
end
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function toboolean(str)
str = str:trim():lower()
if str == '1' or str == 'true' then
return true
end
return false
end
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function signalcall(param, ...)
if type(param) == 'function' then
return param(...)
elseif type(param) == 'table' then
for k,v in pairs(param) do
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if v(...) then
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return true
end
end
elseif func ~= nil then
error('attempt to call a non function value')
end
return false
end
function tr(s)
return s
end
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-- @}