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import strutils
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var s: string = "alphaBETA_123"
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echo s, " as upper case: ", toUpperAscii(s)
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echo s, " as lower case: ", toLowerAscii(s)
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echo s, " as capitalized: ", capitalizeAscii(s)
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echo s, " as normal case: ", normalize(s) # to lower case without underscores.
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