tests/macros/tlexerex.nim


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import macros

macro match*(s: cstring|string; pos: int; sections: varargs[untyped]): untyped =
  for sec in sections:
    expectKind sec, nnkOfBranch
    expectLen sec, 2
  result = newStmtList()

when isMainModule:
  var input = "the input"
  var pos = 0
  match input, pos:
  of r"[a-zA-Z_]\w+": echo "an identifier"
  of r"\d+": echo "an integer"
  of r".": echo "something else"