将文本文件中的每三行替换为另一个文本文件中的内容

Question

尝试用实际的字幕替换每三行。

背景：我在 Videosubfinder 和 ocr api 的帮助下为音乐视频和电影制作字幕。

emptySub.srt（使用 Videosubfinder 自动创建）

1
00:00:10,076 --> 00:00:15,080
sub duration: 5,004

2
00:00:57,891 --> 00:01:01,694
sub duration: 3,803

subtitle.txt 是这样的（使用了ocr api，循环图片，不需要看代码）

I bought some eggs.
He bought some spam.

代码

with open("empty.srt", "a") as file:
    for line in file:
        # TODO

预期输出

1
00:00:10,076 --> 00:00:15,080
I bought some eggs.

2
00:00:57,891 --> 00:01:01,694
He bought some spam.

我被困住了。如何用我的字幕替换？也许我应该使用我不知道的正则表达式。

编辑：我终于自己解决了

Answer 1

你想要一些变体：

subtitleLines = open('subtitle.txt', 'r')

# Creates a list of lines
srtLines = open('srtfile.srt', 'r').readlines()

for (i, line) in enumerate(subtitleLines):
  srtLines[3*i + 2] = line

# emit srtLines

这对于 KB 到 ~MBish 范围内的文件表现良好，但如果文件很大，您将希望推进 srt file 比字幕 file 更快。你如何推进一个打开的文件？拨打next():

# after reading in subtitle.txt into subtitleFile:
for line in subtitleFile:
  for i in range(2):
    # Your "next" line will have a newline, so suppress print()'s
    # default newline.
    print(srtFile.next(), end="")
  # advance without printing
  srtFile.next()
  print line

您将需要捕获StopIteration 并决定在 SRT 文件“用完”后做什么 - 这取决于您是否要验证。

但是请注意，从您的示例来看，从第 3 行开始的每 4 行似乎都是字幕行（srt 块之间有一个空白行）。

Answer 2

subList = []
with open("subtitle.txt", "r") as subFile:
    for subLine in subFile:
        subList.append(subLine.rstrip())

print(subList)

i = 0
with open("emptySub.srt", "r") as file:
    for line in file:
        if line.startswith('s'):
            line = line.replace(line, subList[i]+'\n')
            i = i + 1
        with open('newFile.srt','a') as resFile:
            resFile.write(line)