Notepad++中的双换行符问题

Question

我正在准备一些Whatsapp聊天记录，以便生成统计数据和词云。然而，我的数据中不时会出现双换行符的痕迹，这会影响日志的格式，我想知道如何自动修复这个问题。

13 Mar 18:51 - nicola: mainly he's crap
13 Mar 18:52 - Sebastian K: ... you didn't really dress it up
13 Mar 18:52 - nicola: and he has no natural grace like most cats 

well no i didn't lol
13 Mar 18:52 - nicola: you saw the last video
13 Mar 18:53 - Sebastian K: Stilton jumped onto that wall effortlessly while Ched almost killed himself yea...

搜索并删除空行（简单修复）。但是仍有破坏日期和时间格式的行：

13 Mar 18:51 - nicola: mainly he's crap
13 Mar 18:52 - Sebastian K: ... you didn't really dress it up
13 Mar 18:52 - nicola: and he has no natural grace like most cats 
well no i didn't lol
13 Mar 18:52 - nicola: you saw the last video
13 Mar 18:53 - Sebastian K: Stilton jumped onto that wall effortlessly while Ched almost killed himself yea...

目标格式：

13 Mar 18:51 - nicola: mainly he's crap
13 Mar 18:52 - Sebastian K: ... you didn't really dress it up
13 Mar 18:52 - nicola: and he has no natural grace like most cats well no i didn't lol
13 Mar 18:52 - nicola: you saw the last video
13 Mar 18:53 - Sebastian K: Stilton jumped onto that wall effortlessly while Ched almost killed himself yea...

也许解决方案在于利用这个规则：我需要保留的换行符遵循以下模式：

TEXT *linebreak* 
NUMBER(begging of date column)

讨厌的人们跟随着这个模式：

TEXT *linebreak*
TEXT

我怎样才能使用Notepad++修复它？

- Lawd

Answer 1

在搜索和替换对话框中，您可以搜索此模式。

\r\n(?!\d)

启用正则表达式，并替换为空。

\r\n 搜索由 CR 和 LF 组成的换行符。在 Notepad++ 中启用控制字符的显示，以查看您有哪种换行符。

(?!\d) 是 负向先行断言，当后面没有数字时为真。这适用于您的示例，但对于某些边角情况可能会失败，您可以将其扩展为模式，例如 (?!\d{2}\s) 当日期始终为两位数时。

- stema