gistfile1.txt

import macros

macro print*(n: varargs[typed]): untyped =
  result = newNimNode(nnkStmtList, n)
  for i in 0..n.len-1:
    if n[i].kind == nnkStrLit:
      # pure string literals are written diretly
      result.add(newCall("write", newIdentNode("stdout"), n[i]))
    else:
      # other expressions are written in <expression>: <value> syntax
      result.add(newCall("write", newIdentNode("stdout"), toStrLit(n[i])))
      result.add(newCall("write", newIdentNode("stdout"), newStrLitNode(": ")))
      result.add(newCall("write", newIdentNode("stdout"), n[i]))
    if i != n.len-1:
      # separate by " "
      result.add(newCall("write", newIdentNode("stdout"), newStrLitNode(" ")))
    else:
      # add newline
      result.add(newCall("writeLine", newIdentNode("stdout"), newStrLitNode("")))

I this might solves my problem

macro print*(n: varargs[typed]): untyped =
  var command = nnkCommand.newTree(
    newIdentNode(!"echo")
  )
  for i in 0..n.len-1:
    if n[i].kind == nnkStrLit:
      command.add(n[i])
    else:
      command.add(toStrLit(n[i]))
      command.add(newStrLitNode("="))
      command.add(n[i])
    if i != n.len-1:
      command.add(newStrLitNode(" "))
  return nnkStmtList.newTree(command)