Using \n as a Trigger

[Tryanks]

In a webpage I wrote to display Markdown, I enabled hard line breaks and set first-line indentation for each paragraph:

p {  
    text-indent: 2em;  
}  

However, current browsers cannot handle indentation for every line within the same paragraph, resulting in this:

<p>This is a test sentence,<br/>here is a soft line break</p>  

  This is a test sentence,  
here is a soft line break  

One solution I thought of is to insert a span after the soft line break, containing a zero-width space, and then set the indentation for it again to achieve the desired effect:

<p>This is a test sentence,<br/><span class="break">&#8203;</span>here is a soft line break</p>  
.break {  
    text-indent: 2em;  
}  

  This is a test sentence,  
  here is a soft line break  

Therefore, I want to use the character \n as a trigger and insert an ast.NewNodeKind("EachLineIndent") at the target position, which will later be rendered as <span class="break">&#8203;</span>.
Looking at the code, I found that any whitespace characters or line breaks are set to not trigger the parser, so I'm stuck :(

goldmark/parser/parser.go

Lines 1175 to 1180 in afcb7ff

	if c == '\n' {
	break
	}
	isSpace := util.IsSpace(c) && c != '\r' && c != '\n'
	isPunct := util.IsPunct(c)
	if (isPunct && !escaped) || isSpace && !(escaped && p.escapedSpace) || i == 0 {

Any suggestions? (Or ideas for improvement?)