text: # Copyright (c) 2003-2014 LOGILAB S.A. (Paris, FRANCE).
  # This program is free software; you can redistribute it and/or modify it under
  # the terms of the GNU General Public License as published by the Free Software
  # Foundation; either version 2 of the License, or (at your option) any later
  # version.
  #
  # This program is distributed in the hope that it will be useful, but WITHOUT
  # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  # FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
  #
  # You should have received a copy of the GNU General Public License along with
  # this program; if not, write to the Free Software Foundation, Inc.,
  # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  """JSON reporter"""
  from __future__ import absolute_import, print_function
  
  import cgi
  import json
  import sys
  
  from pylint.interfaces import IReporter
  from pylint.reporters import BaseReporter
  
  
  class JSONReporter(BaseReporter):
      """Report messages and layouts in JSON."""
  
      __implements__ = IReporter
      name = 'json'
      extension = 'json'
  
      def __init__(self, output=sys.stdout):
          BaseReporter.__init__(self, output)
          self.messages = []
  
      def handle_message(self, message):
          """Manage message of different type and in the context of path."""
          self.messages.append({
              'type': message.category,
              'module': message.module,
              'obj': message.obj,
              'line': message.line,
              'column': message.column,
              'path': message.path,
              'symbol': message.symbol,
              # pylint: disable=deprecated-method; deprecated since 3.2.
              'message': cgi.escape(message.msg or ''),
          })
  
      def display_messages(self, layout):
          """Launch layouts display"""
          if self.messages:
              print(json.dumps(self.messages, indent=4), file=self.out)
  
      def display_reports(self, _):
          """Don't do nothing in this reporter."""
  
      def _display(self, layout):
          """Don't do nothing."""
  
  
  def register(linter):
      """Register the reporter classes with the linter."""
      linter.register_reporter(JSONReporter)
  