text: class basisset:
  	def basis(self, gbasis='sto3g'):
  		sto3g =' $basis gbasis=sto ngauss=3 $end\n'
  		g321  =' $basis gbasis=N21 ngauss=3 $end\n'
                  g631d =' $basis gbasis=N31 ngauss=6 ndfunc=1 $end\n'
                  g631dp=' $basis gbasis=N31 ngauss=6 ndfunc=1 npfunc=1 $end\n'
                  g631plusdp=' $basis gbasis=N31 ngauss=6 $end\n'+ \
                              ' $basis ndfunc=1 npfunc=1 diffsp=.true. $end\n'
                  g631doubleplusdp =' $basis gbasis=N31 ngauss=6 $end\n'+ \
                              ' $basis ndfunc=1 npfunc=1 $end\n' +\
                              ' $basis diffsp=.true. diffs=.true. $end\n'
                  sbkjc = ' $basis gbasis=sbk ngauss=3 ndfunc=1 $end\n'+\
                          ' $contrl ecp=sbk $end\n'
  
                  hw = ' $basis gbasis=hw ndfunc=1 $end\n' +\
                      '$contrl ecp=hw $end'
  
  		card={
  			'STO3G'  : sto3g,
  			'STO-3G' : sto3g,
  
  			'321G'   : g321,
  			'3-21G'  : g321,
  
  
                          '631GD' : g631d,
                          '6-31GD' : g631d,
                          '6-31G(D)': g631d,
                          '631G(D)': g631d,
                          '631G*' : g631d,
                          '6-31G*' : g631d,
  
                          '631GDP': g631dp,
                          '6-31GDP':g631dp,
                          '631G(D,P)' : g631dp,
                          '6-31G(D,P)' : g631dp,
                          '631G**' : g631dp,
                          '6-31G**' : g631dp,
  
                          '631++GDP' : g631doubleplusdp,
                          '631++GDP' : g631doubleplusdp,
                          '631++G(D,P)' : g631doubleplusdp,
                          '6-31++G(D,P)' : g631doubleplusdp,
                          '631++G**' : g631doubleplusdp,
                          '631++G**' : g631doubleplusdp,
  
                          'SBKJC': sbkjc,
                          'HW': hw,
  		}
  
  		self.__basis__ = card[gbasis.upper()]
  