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#!/usr/bin/env python3.8
import sys
from tokenize import generate_tokens
from story3.grammar import GrammarParser
from story3.tokenizer import Tokenizer
from story3.generator3 import generate
from story3.visualizer import Visualizer
def main():
file = "story3/toy.gram"
print("Reading", file)
with open(file) as f:
tokengen = generate_tokens(f.readline)
vis = None
if "-v" in sys.argv:
vis = Visualizer()
tok = Tokenizer(tokengen, vis)
p = GrammarParser(tok)
try:
rules = p.grammar()
if vis:
vis.wait()
finally:
if vis:
vis.close()
if not rules:
sys.exit("Fail")
print("[")
for rule in rules:
print(f" {rule},")
print("]")
for rule in rules:
print(rule.name, end=": ", file=sys.stderr)
print(*(" ".join(alt) for alt in rule.alts), sep=" | ", file=sys.stderr)
outfile = "story3/toy.py"
print("Updating", outfile, file=sys.stderr)
with open(outfile, "w") as stream:
generate(rules, stream)
if __name__ == '__main__':
main()
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