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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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Task/Tokenize-a-string-with-escaping/Wren/tokenize-a-string-with-escaping.wren Normal file
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var SPE = "\ufffe" // unused unicode character in Specials block
var SPF = "\uffff" // ditto
var tokenize = Fn.new { |str, sep, esc|
str = str.replace(esc + esc, SPE).replace(esc + sep, SPF)
str = (str[-1] == esc) ? str[0...-1].replace(esc, "") + esc : str.replace(esc, "")
return str.split(sep).map { |s| s.replace(SPE, esc).replace(SPF, sep) }.toList
}
var str = "one^|uno||three^^^^|four^^^|^cuatro|"
var sep = "|"
var esc = "^"
var items = tokenize.call(str, sep, esc)
for (item in items) System.print((item == "") ? "(empty)" : item)