def sto_l(self, symbols, cmd, cmds):
# stores the value on the top of the stack into the local variable named by the next token
ret = 1
ret, v = variables.next_cmd(ret, cmds)
a = variables.top(symbols, 1)
variables.put(v, a, symbols[SYM_LOCAL])
return ret
def view(self, symbols, cmd, cmds):
# view the top of the stack (typically where results are)
ret = 1
print('Top of stack = ', variables.top(
symbols,
1)) # we're going to peek at the top of the stack without popping
return ret
def sto_g(self, symbols, cmd, cmds):
# stores the value on the top of the stack into the global variable named by the next token
ret = 1
ret, v = variables.next_cmd(ret,
cmds) # what's the name of the variable?
a = variables.top(symbols,
1) # will be stored from the top of the stack
with symbols[SYM_GLOBAL][0]: # lock the globals
variables.put(v, a, symbols[SYM_GLOBAL][1]) # and store it there
return ret
def sto(self, symbols, cmd, cmds):
# stores the value in local var if it exists, otherwise global var. If neither, creates local
ret = 1
ret, v = variables.next_cmd(ret,
cmds) # what's the name of the variable?
a = variables.top(symbols,
1) # will be stored from the top of the stack
variables.Auto_store(v, a, symbols) # "auto store" the value
return ret
def x_le_y(self, symbols, cmd, cmds):
# only continue if the top value <= the second value on the stack
if variables.top(symbols, 1) <= variables.top(symbols, 2):
return 1
else:
return len(cmds) + 1
def x_ne_y(self, symbols, cmd, cmds):
# only continues eval if the two top values are not equal
if variables.top(symbols, 1) != variables.top(symbols, 2):
return 1
else:
return len(cmds) + 1
def x_ne_zero(self, symbols, cmd, cmds):
# only continues eval if the top of the stack is not 0
if variables.top(symbols, 1) != 0:
return 1
else:
return len(cmds) + 1
def dup(self, symbols, cmd, cmds):
# duplicates the value on the top of the stack
ret = 1
variables.push(symbols, variables.top(symbols, 1))
return ret