silly_json_to_java.py

import json
from collections import defaultdict

# read data.json
data = json.load(open("data.json"))
d = defaultdict(dict)
for col in data:
    col: dict
    n = col["Column1"]
    for k in col.keys():
        if k == "Column1":
            continue
        d[k][n] = col[k]


def quote(s):
    s = s.replace("&lt;", "<").replace("&gt;", ">")
    assert "&" not in s
    return '"' + s + '"'


def con(s: str) -> str:
    s = s.replace("&lt;", "<").replace("&gt;", ">")
    assert "&" not in s
    if s.startswith("s"):
        return f"Shift({s[1:]})"
    elif s.startswith("r"):
        return f"Reduce({s[1:]})"
    else:
        assert s == "acc"
        return "Acc()"


for m in d:
    print(
        f"""
static{{
Map<Integer, Action> map = new HashMap<>();
transitions.put({quote(m)}, map);
"""
    )
    for k, v in d[m].items():
        print(f"map.put({k}, new {con(v)});")
    print("}")