=== modified file 'ppio.nim'
--- ppio.nim	2019-04-04 20:28:23 +0000
+++ ppio.nim	2019-04-04 19:48:08 +0000
@@ -20,6 +20,14 @@
   write(stdout, "writeVersion()\n")
   quit(0)
 
+# proc posixPrintArgs(): void =
+#   var argc = paramCount()
+#   for n in countup(1, argc):
+#     echo "  [" & paramStr(n) & "]"
+#   echo "---"
+#   for s in commandLineParams():
+#     echo "  [" & s & "]"
+
 type
   Args = tuple[
     endl: string,
@@ -80,7 +88,7 @@
 proc copy_data(
   fd_from:cint,
   fd_to:cint,
-  pp_cb:proc(data:string),
+  # pp_cb:proc(data:string)
 ): Future[void] =
   var flags: cint
   
@@ -140,7 +148,6 @@
       buffer.setLen(res)
       when DEBUG_OUT.bool:
         echo "read[" & $fd.int & "] -> " & repr(buffer)
-      pp_cb(buffer)
       writing = true
       when DEBUG_OUT.bool:
         echo fmt"reading[{fd_from}]: {reading}  writing[{fd_to}]: {writing}"
@@ -161,6 +168,8 @@
     let remaining = buffer.len - buf_written
     when DEBUG_OUT.bool:
       echo fmt"written: {buf_written}  remaining: {remaining}"
+    #var d = cast[cstring](buffer)
+    #let res = posix.write(fd_to, addr d[buf_written], remaining.cint)
     let res = posix.write(fd_to, addr buffer[buf_written], remaining.cint)
     if res < 0:
       let lastError = osLastError()
@@ -194,53 +203,6 @@
   return future_result
 
 
-type DisplayMode = enum
-  none,
-  normal,
-  escaped
-
-proc pp_writer(
-  normal: string,
-  escaped: string,
-  options: Args,
-): proc(data:string) =
-  proc pp(data: string): void =
-    var
-      to_print = ""
-      dm: DisplayMode = DisplayMode.none
-    for c in data:
-      case c
-      of ' ' .. '~':
-        if dm != DisplayMode.normal:
-          to_print.add("\x1b[")
-          to_print.add(normal)
-          to_print.add("m")
-          dm = DisplayMode.normal
-        to_print.add(c)
-      else:
-        if dm != DisplayMode.escaped:
-          to_print.add("\x1b[")
-          to_print.add(escaped)
-          to_print.add("m")
-          dm = DisplayMode.escaped
-        to_print.addEscapedChar(c)
-        # case c:
-        #   of '\0':
-        #     to_print.add("\\0")
-        #   of '\r':
-        #     to_print.add("\\r")
-        #   of '\n':
-        #     to_print.add("\\n")
-        #   of '\t':
-        #     to_print.add("\\t")
-        #   else:
-    to_print.add("\x1b[0m")
-
-    write(stderr, to_print)
-    # write(stderr, "\x1b[" & normal & "m" & repr(data) & "\x1b[0m")
-  return pp
-
-
 proc main(): void =
   var args = posixParseArgs()
   write(stderr, "args: " & repr(args) & "\n")
@@ -292,24 +254,20 @@
     
     # TODO: IO loop here
     var
-      rw_stdin: Future[void] = copy_data(0, pipein[1], pp_writer(
-        args.color_escapes[0], args.color_escapes[1], args,
-        ))
-      rw_stdout: Future[void] = copy_data(pipeout[0], 1, pp_writer(
-        args.color_escapes[2], args.color_escapes[3], args,
-        ))
+      rw_stdin: Future[void] = copy_data(0, pipein[1])
+      rw_stdout: Future[void] = copy_data(pipeout[0], 1)
       
     asyncdispatch.waitFor(rw_stdin or rw_stdout)
     if rw_stdin.failed:
-      rw_stdin.read  # re-raise
+      rw_stdin.read  # re-reaise
     if rw_stdout.failed:
-      rw_stdout.read  # re-raise
+      rw_stdout.read  # re-reaise
 
     asyncdispatch.waitFor(rw_stdin and rw_stdout)
     if rw_stdin.failed:
-      rw_stdin.read  # re-raise
+      rw_stdin.read  # re-reaise
     if rw_stdout.failed:
-      rw_stdout.read  # re-raise
+      rw_stdout.read  # re-reaise
 
     var
       status: cint