56 lines
1.5 KiB
Lua
56 lines
1.5 KiB
Lua
-- Various global functions to cause less typing.
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function assertf(bool, fmt, ...)
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fmt = fmt or "Assetion Failed"
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if not bool then
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error(string.format(fmt,...),2)
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end
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end
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function errorf(str, ...)
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--try calling string.format, if it errors, try calling it with exactly
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--1 less argument (the error level)
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local args = {...}
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local succ, ret = pcall(string.format,str,...)
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if not succ and type(args[#args]) ~= "number" then
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errorf("Failed displaying error that looks like %q",str)
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elseif type(args[#args]) == "number" then
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local errlevel = table.remove(args,#args)
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local succ2, ret = pcall(string.format,str,unpack(args))
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if not succ2 then
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errorf("Failed displaying error that looks like %q",str)
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end
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error(ret, errlevel+1)
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end
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error(ret,2)
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end
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local oldtostring = tostring
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function tostring(any)
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--Pretty print tables by default
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local printed_tables = {}
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local function tostring_helper(a,tabs)
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if type(a) ~= "table" then
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return oldtostring(a)
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end
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if printed_tables[a] then
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return oldtostring(a)
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end
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printed_tables[a] = true
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local sbuilder = {"{\n"}
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for k,v in pairs(a) do
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table.insert(sbuilder,string.rep("\t",tabs))
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table.insert(sbuilder,tostring_helper(k,tabs+1))
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table.insert(sbuilder,":")
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table.insert(sbuilder,tostring_helper(v,tabs+1))
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table.insert(sbuilder,"\n")
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end
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table.insert(sbuilder,string.rep("\t",tabs-1))
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table.insert(sbuilder,"}")
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return table.concat(sbuilder)
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end
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return tostring_helper(any,1)
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end
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