def interp(input_stream):
# initialize the state object
state.initialize()
# build the AST
parser.parse(input_stream, lexer=lexer)
# walk the AST
walk(state.AST)
def ppjh(input_stream=None):
# if no input stream was given read from stdin
if not input_stream:
input_stream = stdin.read()
# initialize the state object and indent level
state.initialize()
init_indent_level()
# build the AST
parser.parse(input_stream, lexer=lexer)
# walk the AST
pp1_walk(state.AST, 0)
def pp(input_stream = None):
# if no input stream was given read from stdin
if not input_stream:
input_stream = stdin.read()
# initialize the state object and indent level
state.initialize()
init_indent_level()
# build the AST
parser.parse(input_stream, lexer=lexer)
# walk the AST
pp1_walk(state.AST)
code = pp2_walk(state.AST)
# output the pretty printed code
print(code)
def cc(input_stream, opt=False):
# initialize the state object
state.initialize()
# build the AST
parser.parse(input_stream, lexer=lexer)
# run the constant fold optimizer
if opt:
state.AST = fold(state.AST)
# generate the list of instruction tuples
instr_stream = codegen(state.AST)
# run the peephole optimizer
if opt:
peephole_opt(instr_stream)
# output the instruction stream
bytecode = output(instr_stream)
return bytecode