Default (Linux).sublime-keymap

[
  { "keys": ["ctrl+shift+x"], "command": "tidy_xml" },
  { "keys": ["ctrl+shift+j"], "command": "prettify_json" }
]

prettify_json.py

import sublime, sublime_plugin, subprocess

class PrettifyJsonCommand(sublime_plugin.TextCommand):
  def run(self, edit):
    command = 'python -mjson.tool'

    # help from http://www.sublimetext.com/forum/viewtopic.php?f=2&p=12451
    p = subprocess.Popen(command, bufsize=-1, stdout=subprocess.PIPE, stderr=subprocess.PIPE, stdin=subprocess.PIPE, shell=True)
    result, err = p.communicate(self.view.substr(self.view.sel()[0]).encode('utf-8'))

    # gave up trying this approach: result always has '\n' strings in it that refuse to render
    #result = json.dumps( self.view.substr(self.view.sel()[0]), indent=2)

    # http://code.activestate.com/recipes/65211/  seems to say that Python "ruins" non-raw strings by 
    # actually placing '\','n' in the friggin string unless it's marked 'raw'?  Is that true?  Shouldn't a string be a string
    # and the raw/not raw output be a function of the runtime?  Why does "print" have some magic to reescape these strings and
    # yet there are no other buffer objects that seem to do it (aka StringIO or BytesIO).

    if result != "":
      self.view.replace(edit, self.view.sel()[0], result.decode('utf-8'))
      sublime.set_timeout(self.clear,0)
    else:
      self.view.set_status('tidyjson', "tidyjson: "+err)
      sublime.set_timeout(self.clear,10000)
    

  def clear(self):
    self.view.erase_status('tidyjson')

tidy_xml.py

import sublime, sublime_plugin, subprocess

class TidyXmlCommand(sublime_plugin.TextCommand):
  def run(self, edit):
    command = 'tidy -xml -i -utf8 -w -q'

    # help from http://www.sublimetext.com/forum/viewtopic.php?f=2&p=12451
    p = subprocess.Popen(command, bufsize=-1, stdout=subprocess.PIPE, stderr=subprocess.PIPE, stdin=subprocess.PIPE, shell=True)
    result, err = p.communicate(self.view.substr(self.view.sel()[0]).encode('utf-8'))

    err = err.decode('utf-8')

    if err != "":
      print("tidyxml: " + err)
      sublime.active_window().run_command("show_panel", {"panel": "console"})

    else:
      self.view.replace(edit, self.view.sel()[0], result.decode('utf-8'))
      self.view.set_status('tidyxml', "tidyxml: now your xml is tidy")
      sublime.set_timeout(self.clear,2000)

  def clear(self):
    self.view.erase_status('tidyxml')