text: """SCons.Tool.dvi
  
  Common DVI Builder definition for various other Tool modules that use it.
  
  """
  
  #
  # __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.Builder
  import SCons.Tool
  
  DVIBuilder = None
  
  def generate(env):
      try:
          env['BUILDERS']['DVI']
      except KeyError:
          global DVIBuilder
  
          if DVIBuilder is None:
              # The suffix is hard-coded to '.dvi', not configurable via a
              # construction variable like $DVISUFFIX, because the output
              # file name is hard-coded within TeX.
              DVIBuilder = SCons.Builder.Builder(action = {},
                                                 source_scanner = SCons.Tool.LaTeXScanner,
                                                 suffix = '.dvi',
                                                 emitter = {},
                                                 source_ext_match = None)
  
          env['BUILDERS']['DVI'] = DVIBuilder
  
  def exists(env):
      # This only puts a skeleton Builder in place, so if someone
      # references this Tool directly, it's always "available."
      return 1
  
  # Local Variables:
  # tab-width:4
  # indent-tabs-mode:nil
  # End:
  # vim: set expandtab tabstop=4 shiftwidth=4:
  