revev

#!/usr/bin/python

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# revev jsonfile hex-event ...
# print names for hex events

import sys, json, argparse
import pandas as pd

p = argparse.ArgumentParser()
p.add_argument("jsonfile", help="JSON event file")
p.add_argument("events", nargs="+", help="Hex events to resolve")
args = p.parse_args()

def jnum(x):
    return "0x%02X" % (x)

ev = pd.read_json(args.jsonfile)
ev.set_index('EventName', inplace=True)
for n in args.events:
    ne = int(n, 16)
    code = ne & 0xff
    umask = (ne >> 8) & 0xff
    found = ev[(ev.EventCode == jnum(code)) & (ev.UMask == jnum(umask))]
    for name, val in found.iterrows():
        print name, val["EventCode"], val["UMask"]