Quellcode

import os
import re
from datetime import datetime, timedelta
from time import *
i = 736
last_timeline = ""
out = open("out.txt", 'w')

# 10
# 00:00:47,600 --> 00:00:53,232
# And nothing will save us, except
# the Chalk of fate.

def check(filename, previous_entries, start_time):
    global i 
    num = re.compile('^[0-9]+$') #regulaerer Ausrduck fuer id des Untertitels
    current_entries = 0    
    # regulaerer ausdruck fuer Timestamp: 00:00:21,440 --> 00:00:24,750
    time = re.compile('^([0-9]{2}:){2}[0-9]{2},[0-9]{3} --> ([0-9]{2}:){2}[0-9]{2},[0-9]{3}$')
    for line in datei:
        zahl = num.match(line)        
        if zahl:
            current_entries+=1
            out.write(str(i + current_entries) + "\n")
        else:
            zeit = time.match(line)
            if zeit:
                start = line[:line.find(" --> ")]
                end = line[line.find(" --> ")+5:-1]
                last_timeline = line
                start = extract_time(start)
                end   = extract_time(end)            
                start = start + start_time
                end = end + start_time
                # rausschreiben, punkte durch Kommata ersetzen
                out.write( (str(start)[:-3] + " --> " + str(end)[:-3] + "\n").replace('.', ',') )
            else :
                out.write(line)
    i += current_entries
    out.close()


# erwartet eine Zeitangabe im Stil von "00:00:47,600"
def extract_time(zeit):
    ms = int(zeit[-3:])
    time = zeit[:-4]
    time = strptime( time, "%H:%M:%S")
    time = timedelta( 0, time.tm_sec, 0, int(zeit[-3:]), time.tm_min, time.tm_hour)
    return time




#timedelta( [days[, seconds[, microseconds[, milliseconds[, minutes[, hours[, weeks]]]]]]])

td = timedelta( 0,     45      , 0             ,0        ,   7      , 1     )
check("a.txt", i, td)