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import getopt
import re
import sys
def accept_args( args_spec, args, options, usage ):
defaults_num = len(options)
( option_pairs, rest_args ) = getopt.getopt( args, '', args_spec )
map( lambda x: options.__setitem__( x[0], x[1] ), option_pairs )
if ( options.has_key( '--help' ) or len( options.keys() ) == defaults_num ):
usage()
sys.exit( 1 )
if len( rest_args ) > 0 and rest_args[0][0] == '@':
f = open( rest_args[0][1:], 'r' )
config_lines = f.read().splitlines()
f.close()
for l in config_lines:
if re.search( r'^\s*#', l ): continue
if re.search( r'^\s*$', l ): continue
m = re.match( r'^(?P<name>.*?)=(?P<value>.*)', l )
if m:
options[ '--%s' % m.group( 'name' ) ] = m.group( 'value' )
else:
raise 'Invalid format of config line "%s"' % l
return rest_args
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