#! /usr/bin/env python

"""\
%prog flatfile [yodafile]

Convert a FLAT data file to the YODA data format.

WARNING: flat2yoda is DEPRECATED.
The flat/dat format is not intended as an interchange format.
"""

import yoda, os, sys, optparse
from yoda.script_helpers import parse_x2y_args, filter_aos

parser = optparse.OptionParser(usage=__doc__)
parser.add_option("-m", "--match", dest="MATCH", metavar="PATT", default=None,
                  help="only write out histograms whose path matches this regex")
parser.add_option("-M", "--unmatch", dest="UNMATCH", metavar="PATT", default=None,
                  help="exclude histograms whose path matches this regex")

sys.stderr.write("WARNING: flat2yoda is DEPRECATED.\n  The flat/dat format is not intended as an interchange format.\n"

opts, args = parser.parse_args()
in_out = parse_x2y_args(args, ".dat", ".yoda")
if not in_out:
    sys.stderr.write("You must specify the FLAT and YODA file names\n")
    sys.exit(1)

for i, o in in_out:
    analysisobjects = yoda.readFLAT(i)
    filter_aos(analysisobjects, opts.MATCH, opts.UNMATCH)
    yoda.writeYODA(analysisobjects, o)
