javascript - 匹配不以特殊字符开头的行中的换行符

Question

我想匹配所有 \n 或 \r，除了以 @ 开头的行之外 我有这个正则表达式: (?!^@.*\r*\n*)(\r*\n*) 例如:

@text text text 

@text text text
The line break after this text should be matched 
The line break after this text also should be selected 

@this line break should not be selected

因此，唯一应该选择的换行符是第 2 个、第 4 个、第 5 个、第 6 个和第 7 个中的换行符。 有什么想法吗？

Answer 1

像这样吗？

https://regex101.com/r/bYIpiQ/2

https://regexr.com/4s98n

注意我不选择文本，我替换\n\r或\n或\r

const text = document.getElementById("x").innerText;
document.getElementById("x").innerText=text.replace(/(^[^@].*)(\r\n|\r|\n)/gm,"$1<BR/>")

#x { font-family: "Courier New", monospace;
  white-space: pre; }

<div id="x">@line 1: text text text 
line 2:
@line3: text text text
line 4: The line break after this text should be matched 
line 5: The line break after this text also should be selected 
line 6:
@line 7: this line break should not be selected
</div>