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- Calculating strings ?
Is it possible to do this:
function calculate(str)
--do stuff with "str"
return str
end
string = "1+2/3-2^(2*2.4)"
result = calculate(string)
print(result)
Is it possible to make a function to calculate what is in the string?
2 answers
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1
The easiest way to do it is to use the loadstring function. The thing this function does, is, it returns a function that does what you tell it, but through a string.
For example,
local func = loadstring("print'hello world'")
func() --> hello world
Now, we can use this to calculate strings.
function calculate(str)
local str2 = loadstring("return "..str)() -- the same as function() return [anything] end
return str2
end
I hope it helped.
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0
Look up string patterns and string function dump on the wiki.
or try tonumber(string)