timeline_adjust.py

#!/usr/bin/python
from __future__ import print_function
import argparse
import re

time_re = re.compile(r"^\s*#?\s*([0-9]+(?:\.[0-9]+)?)\s+\"")
first_num_re = re.compile(r"([0-9]+(?:\.[0-9]+)?)")


def adjust_lines(lines, adjust):
    for line in lines:
        match = re.match(time_re, line)
        if match:
            time = float(match.group(1)) + adjust
            print(re.sub(first_num_re, "%.1f" % time, line, 1), end='')
        else:
            print(line, end='')


def main():
    parser = argparse.ArgumentParser(
        description="A utility to uniformly adjust times in an act timeline file")
    parser.add_argument('--file', required=True, type=argparse.FileType('r', encoding="utf8"),
                        help="The timeline file to adjust times in")
    parser.add_argument('--adjust', required=True, type=float,
                        help="The amount of time to adjust each entry by")

    args = parser.parse_args()
    adjust_lines(args.file, args.adjust)


if __name__ == "__main__":
    main()