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8876 :: get unicode codes of a string

• Aquachain (orginal) [2022-02-06T23:45:16+01:00] view original

  Hello,

  i need unicode codes of any char in a string, but i dont get it. Can someone give me some clarity about unicodes in nim?

  This is what i tried to understand them:

  import
    strutils,
    unicode
  
  proc getUnicode(c: string) =
    let runeLen = c.runeLenAt(0)
    echo "Length of " & $c & " is: " & $runeLen
    
    for i in 0..<runeLen:
      echo c[i].uint.toHex()
  
  getUnicode("a") # gives "61" which is right
  getUnicode("°") # gives "C2" and "B0", but only "B0" is '°'.
  getUnicode("€") # gives "E2", "82" and "AC", but the unicode of '€' is "20AC".
  Run

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• mrgaturus (orginal) [2022-02-06T23:49:22+01:00] view original

  you can use toRunes from unicode module to get a seq of Runes (charcodes) or you can use runes to iterate each charcode from any string using a for loop

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• ElegantBeef (orginal) [2022-02-06T23:52:16+01:00] view original

  import std/[strutils, unicode]
  
  proc getUnicode(c: string) =
    let len = runeLen(c)
    echo "Length of ", c, " is: ", len
    for i in 0..<len:
      echo runeAtPos(c, i).uint.toHex()
  
  getUnicode("a")
  getUnicode("°")
  getUnicode("€")
  Run

  Seems to report everything properly.

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• Aquachain (orginal) [2022-02-06T23:56:08+01:00] view original

  Thank you very much! This works for me well:

  let runes = "a°€".toRunes()
    for r in runes:
      echo r.int16.toHex()
  Run

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• mrgaturus (orginal) [2022-02-07T00:02:40+01:00] view original

  It can be more short using runes

  for r in "a°€".runes:
    echo r.int16.toHex()
  Run

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• ElegantBeef (orginal) [2022-02-07T00:09:32+01:00] view original

  Not only shorter but also more efficient.

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