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Error when string.split is given empty separator (#13132)
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@ -170,6 +170,9 @@ end
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--------------------------------------------------------------------------------
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function string.split(str, delim, include_empty, max_splits, sep_is_pattern)
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delim = delim or ","
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if delim == "" then
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error("string.split separator is empty", 2)
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end
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max_splits = max_splits or -2
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local items = {}
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local pos, len = 1, #str
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@ -38,6 +38,12 @@ describe("string", function()
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assert.same({ "one", "two" }, string.split("one,two", ",", false, -1, true))
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assert.same({ "one", "two", "three" }, string.split("one2two3three", "%d", false, -1, true))
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end)
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it("rejects empty separator", function()
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assert.has.errors(function()
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string.split("", "")
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end)
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end)
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end)
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end)
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@ -3623,7 +3623,7 @@ Helper functions
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* `math.round(x)`: Returns `x` rounded to the nearest integer.
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* At a multiple of 0.5, rounds away from zero.
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* `string.split(str, separator, include_empty, max_splits, sep_is_pattern)`
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* `separator`: string, default: `","`
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* `separator`: string, cannot be empty, default: `","`
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* `include_empty`: boolean, default: `false`
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* `max_splits`: number, if it's negative, splits aren't limited,
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default: `-1`
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