NEDIT_require_macro_file("array_utils.nm")

# ==============================================================================
# SaveAllFiles(): writes all modified documents to their files.
# ==============================================================================

define SaveAllFiles
  {
  current = $file_path $file_name
  filename = focus_window("last")
  while (filename != "")
    {
    save_it = $modified
    if ($modified)
      {
      if (search_string($file_name, "^Untitled(?:_\\d+)?$", 0, "regex") == 0)
        {
        if (read_file($file_name) == "" && $read_status == 0)
          {
          # this file doesn't exist and should not (?) be saved
          save_it = 0
          }
        }
      }
    if (save_it)
      {
      raise_window()
      save()
      }

    filename = focus_window("next")
    }
  focus_window(current)
  raise_window()
  }

# ==============================================================================
# TidyFile(): if the current file requires tidying (removing CRs, TABs or SPACEs
#       from line ends), this is done. Returns true if tidied.
# ==============================================================================

define TidyFile
  {
  tidied = 0
  if (!$read_only)
    {
    for (pos = search("[ \t\r]+$", 0, "regex"); \
         pos >= 0; \
         pos = search("[ \t\r]+$", pos + 1, "regex"))
      {
      replace_range(pos, $search_end, "")
      tidied = 1
      }
    }
  return tidied
  }

# ==============================================================================
# SaveCurrFileAsFormat(fmt, tidy): if the current file is modified or requires
#       tidying (removing CRs, TABs or SPACEs from line ends, when tidy is
#       true), saves it, after perhaps tidying it first. If the target format
#       fmt is not that of the  file, the disk version is then read and the
#       appropriate change made to the line endings in that string.
# ==============================================================================

define SaveCurrFileAsFormat
  {
  dest["unix"] = "\n"
  dest["dos"] = "\r\n"
  dest["macintosh"] = "\r"

  fmt = $1

  oldfmt = $file_format
  change_format = oldfmt != fmt
  valid = (fmt in dest)
  error = ""
  if (!valid)
    error = "INVALID NEW FORMAT '" fmt "'"
  if ($read_only)
    {
    error = "READ-ONLY " error
    }
  if (change_format && valid && !$read_only)
    {
    content = replace_in_string(get_range(0, $text_length), \
                                "\n", dest[fmt], "case", "copy")
    write_file(content, $file_path $file_name)
    revert_to_saved()
    return oldfmt " -> " fmt
    }
  else if ($modified && !$read_only)
    {
    save()
    return "saved " error
    }
  return error
  }

# ==============================================================================
# SaveAllFilesAsFormat(fmt, tidy): writes all modified documents to their files
#       using the format fmt. It tidy is true, trailing spaces and tabs are
#       removed. fmt must be one of "unix", "macintosh" or "dos".
# ==============================================================================

define SaveAllFilesAsFormat
  {
  fmt = $1
  tidy = $2
  res = $empty_array

  current = $file_path $file_name
  filename = focus_window("last")
  maxname = filename
  while (filename != "")
    {
    done = ""
    if (tidy && TidyFile())
      done = done "tidied "
    done = done SaveCurrFileAsFormat(fmt)
    res[filename] = done

    filename = focus_window("next")
    if (length(filename) > length(maxname))
      maxname = filename
    }
  focus_window(current)
  raise_window()
  maxname = replace_in_string(maxname, ".", " ", "regex") " -> "
  list = ""
  for (filename in res)
    {
    if (res[filename] == "")
      res[filename] = "untouched"
    list = list filename \
                substring(maxname, length(filename)) \
                res[filename] "\n"
    }
  list_dialog("Handled the following files", list)
  }