text: """SCons.Tool.dvips
  
  Tool-specific initialization for dvips.
  
  There normally shouldn't be any need to import this module directly.
  It will usually be imported through the generic SCons.Tool.Tool()
  selection method.
  
  """
  
  #
  # __COPYRIGHT__
  #
  # Permission is hereby granted, free of charge, to any person obtaining
  # a copy of this software and associated documentation files (the
  # "Software"), to deal in the Software without restriction, including
  # without limitation the rights to use, copy, modify, merge, publish,
  # distribute, sublicense, and/or sell copies of the Software, and to
  # permit persons to whom the Software is furnished to do so, subject to
  # the following conditions:
  #
  # The above copyright notice and this permission notice shall be included
  # in all copies or substantial portions of the Software.
  #
  # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
  # KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
  # WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  # LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  #
  
  __revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"
  
  import SCons.Action
  import SCons.Builder
  import SCons.Util
  
  PSAction = None
  PSBuilder = None
  
  def generate(env):
      """Add Builders and construction variables for dvips to an Environment."""
      global PSAction
      if PSAction is None:
          PSAction = SCons.Action.Action('$PSCOM', '$PSCOMSTR')
  
      global PSBuilder
      if PSBuilder is None:
          PSBuilder = SCons.Builder.Builder(action = PSAction,
                                            prefix = '$PSPREFIX',
                                            suffix = '$PSSUFFIX',
                                            src_suffix = '.dvi',
                                            src_builder = 'DVI')
  
      env['BUILDERS']['PostScript'] = PSBuilder
      
      env['DVIPS']      = 'dvips'
      env['DVIPSFLAGS'] = SCons.Util.CLVar('')
      # I'm not quite sure I got the directories and filenames right for build_dir
      # We need to be in the correct directory for the sake of latex \includegraphics eps included files.
      env['PSCOM']      = 'cd ${TARGET.dir} && $DVIPS $DVIPSFLAGS -o ${TARGET.file} ${SOURCE.file}'
      env['PSPREFIX'] = ''
      env['PSSUFFIX'] = '.ps'
  
  def exists(env):
      return env.Detect('dvips')
  