正则表达式：在行首添加连字符破折号，其中不存在连字符破折号

Question

下午好。我想在行首添加连字符（破折号），而行首没有连字符破折号。例如，我有以下文本：

I love books.
I want some money.
I need help.
- I want to ask you something.
- I want to love you.
I need hits.
- I get done with this.

输出应该是：

- I love books.
- I want some money.
- I need help.
- I want to ask you something.
- I want to love you.
- I need hits.
- I get done with this.

Answer 1

在行首没有连字符的地方添加连字符。

寻找：^(?!-)

替换为：-\x20

或者

寻找：^(?!-)(?:\r?|\r)

替换为：-\x20

如果您只想在空白行处添加连字符（破折号）：

寻找：^(?!-)\s*\r

替换为：-\x20

或者

寻找：^(?!-)(?!\w+)

替换为：-\x20