minetest/builtin/mainmenu_helper.lua

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function dump(o, dumped)
dumped = dumped or {}
if type(o) == "number" then
return tostring(o)
elseif type(o) == "string" then
return string.format("%q", o)
elseif type(o) == "table" then
if dumped[o] then
return "<circular reference>"
end
dumped[o] = true
local t = {}
for k,v in pairs(o) do
t[#t+1] = "" .. k .. " = " .. dump(v, dumped)
end
return "{" .. table.concat(t, ", ") .. "}"
elseif type(o) == "boolean" then
return tostring(o)
elseif type(o) == "function" then
return "<function>"
elseif type(o) == "userdata" then
return "<userdata>"
elseif type(o) == "nil" then
return "nil"
else
error("cannot dump a " .. type(o))
return nil
end
end
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function string:split(sep)
local sep, fields = sep or ",", {}
local pattern = string.format("([^%s]+)", sep)
self:gsub(pattern, function(c) fields[#fields+1] = c end)
return fields
end
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function string:trim()
return (self:gsub("^%s*(.-)%s*$", "%1"))
end
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engine.get_game = function(index)
local games = game.get_games()
if index > 0 and index <= #games then
return games[index]
end
return nil
end
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function fs_escape_string(text)
if text ~= nil then
while (text:find("\r\n") ~= nil) do
local newtext = text:sub(1,text:find("\r\n")-1)
newtext = newtext .. " " .. text:sub(text:find("\r\n")+3)
text = newtext
end
while (text:find("\n") ~= nil) do
local newtext = text:sub(1,text:find("\n")-1)
newtext = newtext .. " " .. text:sub(text:find("\n")+1)
text = newtext
end
while (text:find("\r") ~= nil) do
local newtext = text:sub(1,text:find("\r")-1)
newtext = newtext .. " " .. text:sub(text:find("\r")+1)
text = newtext
end
text = text:gsub("%[","%[%[")
text = text:gsub("]","]]")
text = text:gsub(";"," ")
end
return text
end
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function explode_textlist_event(text)
local retval = {}
retval.typ = "INV"
local parts = text:split(":")
if #parts == 2 then
retval.typ = parts[1]:trim()
retval.index= tonumber(parts[2]:trim())
if type(retval.index) ~= "number" then
retval.typ = "INV"
end
end
return retval
end