<s> import sys <EOL> if "<STR_LIT:..>" not in sys . path : sys . path . insert ( <NUM_LIT:0> , "<STR_LIT:..>" ) <EOL> import ply . lex as lex <EOL> t_PLUS = r'<STR_LIT>' <EOL> t_MINUS = r'<STR_LIT:->' <EOL> t_NUMBER = r'<STR_LIT>' <EOL> def t_error ( t ) : <EOL> pass <EOL> lex . lex ( ) </s>
