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package charInfo_width
Parameters
module US : UnicodeString_miniSignature
val width : ?cfg:Cfg.widthTable option -> US.t -> (int, int) Result.resultwidth str returns the column width of str and the value returned is of type (int, int) result. When Ok width returnted, width is the width of str. When Error pos returned, pos is the offset of the left most unprintable character in str.
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