21 lines
518 B
Lua
21 lines
518 B
Lua
function isBalanced(s)
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--Lua pattern matching has a 'balanced' pattern that matches sets of balanced characters.
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--Any two characters can be used.
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return s:gsub('%b[]','')=='' and true or false
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end
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function randomString()
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math.randomseed(os.time())
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math.random()math.random()math.random()math.random()
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local tokens={'[',']'}
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local result={}
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for i=1,8 do
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table.insert(result,tokens[math.random(1,2)])
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end
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return table.concat(result)
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end
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local RS=randomString()
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print(RS)
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print(isBalanced(RS))
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