how to convert charCode to uncode in scala

Question

I am trying to convert string \u8fc8 to "迈" in scala. The string \u8fc8 is stored as six chars which are '\', 'u', '8', 'f', 'c', '8'.

In Python I can do this:

print("\u8fc8".decode("unicode-escape"))

It prints "迈", but I could not find a way to make that happen in Scala, can any body help me?

pme · Accepted Answer · 2018-04-27T08:43:22.707

1

"\u8fc8".format("unicode-escape")

Check this in ScalaFiddle: how to convert charCode to uncode in scala

For "\u8fc8" it is a bit more complex, with the answer of scala-unescape-unicode-string-without-apache:

def unescapeUnicode(str: String): String = 
  """\\u([0-9a-fA-F]{4})""".r.replaceAllIn(str, 
    m => Integer.parseInt(m.group(1), 16).toChar.toString)

unescapeUnicode("\u8fc8")

Check the updated ScalaFiddle: how to convert charCode to uncode in scala

edited Apr 27 '18 at 08:43

answered Apr 27 '18 at 08:07

pme

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I tried, but it doest work, '\' is an escape string, when you write it in the code, you should write "\\u8fc8" – Enrico's Ricardo Apr 27 '18 at 08:11
I converted "8fc8" to 36808, but I don't know how to create a unicode with this integer in Scala – Enrico's Ricardo Apr 27 '18 at 08:20
have you checked the ScalaFiddle? https://scalafiddle.io/sf/pUn6H1z/0 - here "迈" is printed. – pme Apr 27 '18 at 08:25
yes, it prints "迈" in ScalaFiddle, but it didn't work in my original code, it reads data from a file, so the '\' is escaped – Enrico's Ricardo Apr 27 '18 at 08:30
ah ok - please add then the String that you get from the file to your question. – pme Apr 27 '18 at 08:33
just "\\u8fc8", but it prints "\u8fc8" – Enrico's Ricardo Apr 27 '18 at 08:34
I know that in JavaScript, I can run `String.fromCharCode(36808)` to get "迈", but I don't know how to do this in Scala – Enrico's Ricardo Apr 27 '18 at 08:35

how to convert charCode to uncode in scala

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