A sentence with nested modifiers cannot be parsed correctly.

[evpeople]

I found that in the case of double nesting, some content can be parsed correctly, but in sentences like the following, only a list of tokens is parsed.

This is _/underline, italic and *-strikethrough bold-*/_. Mix and match how you see fit, just make sure

[evpeople]

I tried to find out what the issue was, and here are some of my findings, which I hope will be helpful.

The following content can be parsed very well.

            let content = r#"_*/hell, -ow-/*_, orld!  
"#;   // can be parsed
            let content = r#"_*/hell, ow/*_, orld!
"#;        // can not be parsed
            let content = r#"_*/hell , ow/*_, orld!      
"#;    // can not be parsed
            let content = r#"_*/hell  ow/*_, orld!
        "#; // can not be parsed