Anagram [Exercism - Nim]

anagram.nim

import strutils

proc detectAnagrams*(word: string, candidates: openArray[string]): seq[string] =
  for candidate in candidates:
    if word.toLowerAscii == candidate.toLowerAscii or word.len != candidate.len : continue
    for ch in candidate.toLowerAscii:
      if not contains(word.toLowerAscii, ch) or cmp(count(word.toLowerAscii, ch), count(candidate.toLowerAscii, ch)) > 0: break
      else:      
        result.add(candidate)
        break