需要重新格式化文本文件，将演讲者文本向上移动一行到演讲者标签

Question

我有许多包含需要重新格式化的文本的 .txt 文件。具体来说，我有 Speaker A 和 Speaker B，文本在下一行。A:I can not believe the weather today .B:It is beautiful outside .A:Really nice .B:Okay , how are you doing ?A:I am good .B:Good to hear .A:Thank you .可以有更多的发言者，但所有人都会在他们的标签前加上 : 。我希望文件输出为：A: I can not believe the weather today .B: It is beautiful outside .A: Really nice .B: Okay , how are you doing ?A: I am good .B: Good to hear .A: Thank you .谢谢。编辑：另外，如果说话者标签之间有多行文本，是否有解决方案？例如：A:Well hello . Long time no see . How are you doing ? B:Good . How are you ?A:Really great .B:Good .有了预期的结果...A: Well hello . Long time no see . How are you doing ? B: Good . How are you ?A: Really great .B: Good .

Answer 1

正则表达式替换可以处理这个：

import re

text = """A:

I can not believe the weather today .

B:

It is beautiful outside ."""

text = re.sub(r"^(\w+:)\s*", r"\1 ", text, flags=re.MULTILINE)

print(text)

# A: I can not believe the weather today .

# B: It is beautiful outside .

编辑：

基于更新的问题，对于多线对话：

import re

text = """A:

Well hello . 

Long time no see . 

How are you doing ? 

B:

Good . 

How are you ?"""

text = re.sub(r"(.*?)\s*\n(?!\w+:)", r"\1 ", text, flags=re.MULTILINE)

print(text)

# A: Well hello . Long time no see . How are you doing ?

# B: Good . How are you ?

Answer 2

如果短语在一行上，这应该有效：

lines = file.readlines()

for ii in range(1,len(lines),2):

    print(lines[ii-1][:-1]+lines[ii])