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v0.8.1
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Tip revision: 9a448855b51b264d678e3ba3c168034c221806e2 authored by Ćukasz Langa on 25 March 2019, 19:36:40 UTC
v3.8.0a3
v3.8.0a3
Tip revision: 9a44885
token.py
import itertools
def generate_tokens(tokens):
numbers = itertools.count(0)
for line in tokens:
line = line.strip()
if not line:
continue
if line.strip().startswith('#'):
continue
name = line.split()[0]
yield (name, next(numbers))
yield ('N_TOKENS', next(numbers))
yield ('NT_OFFSET', 256)
def generate_opmap(tokens):
for line in tokens:
line = line.strip()
if not line:
continue
if line.strip().startswith('#'):
continue
pieces = line.split()
if len(pieces) != 2:
continue
name, op = pieces
yield (op.strip("'"), name)
# Yield independently <>. This is needed so it does not collide
# with the token generation in "generate_tokens" because if this
# symbol is included in Grammar/Tokens, it will collide with !=
# as it has the same name (NOTEQUAL).
yield ('<>', 'NOTEQUAL')