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import unittest, nre, strutils, optional_nonstrict
block: # Misc tests
block: # unicode
check("".find(re"(*UTF8)").match == "")
check("перевірка".replace(re"(*U)\w", "") == "")
block: # empty or non-empty match
check("abc".findAll(re"|.").join(":") == ":a::b::c:")
check("abc".findAll(re".|").join(":") == "a:b:c:")
check("abc".replace(re"|.", "x") == "xxxxxxx")
check("abc".replace(re".|", "x") == "xxxx")
check("abc".split(re"|.").join(":") == ":::::")
check("abc".split(re".|").join(":") == ":::")
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