text: #!/usr/bin/env python
  #
  # __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 os
  import sys
  
  import TestSCons
  
  _python_ = TestSCons._python_
  _exe   = TestSCons._exe
  
  test = TestSCons.TestSCons()
  
  test.subdir('in')
  
  test.write('mylex.py', """
  import getopt
  import sys
  import os
  if sys.platform == 'win32':
      longopts = ['nounistd']
  else:
      longopts = []
  cmd_opts, args = getopt.getopt(sys.argv[1:], 'I:tx', longopts)
  opt_string = ''
  i_arguments = ''
  for opt, arg in cmd_opts:
      if opt == '-I': i_arguments = i_arguments + ' ' + arg
      else: opt_string = opt_string + ' ' + opt
  for a in args:
      with open(a, 'r') as f:
          contents = f.read()
      contents = contents.replace('LEXFLAGS', opt_string)
      contents = contents.replace('I_ARGS', i_arguments)
      sys.stdout.write(contents)
  sys.exit(0)
  """)
  
  test.write('SConstruct', """
  env = Environment(LEX = r'%(_python_)s mylex.py',
                    LEXFLAGS = '-x -I${TARGET.dir} -I${SOURCE.dir}',
                    tools=['default', 'lex'])
  env.CFile(target = 'out/aaa', source = 'in/aaa.l')
  """ % locals())
  
  test.write(['in', 'aaa.l'], "aaa.l\nLEXFLAGS\nI_ARGS\n")
  
  test.run('.', stderr = None)
  
  lexflags = ' -x -t'
  if sys.platform == 'win32':
      lexflags = ' --nounistd' + lexflags
  # Read in with mode='r' because mylex.py implicitley wrote to stdout
  # with mode='w'.
  test.must_match(['out', 'aaa.c'],	"aaa.l\n%s\n out in\n" % lexflags, mode='r')
  
  
  
  test.pass_test()
  
  # Local Variables:
  # tab-width:4
  # indent-tabs-mode:nil
  # End:
  # vim: set expandtab tabstop=4 shiftwidth=4:
  