Parsing brackets using JavaScript (with PEG.js, not regex)

parsing brackets.md

GO TO

  http://pegjs.org/online

Paste in the grammar:

  Expression
        = head:Factor tail:Factor* {
              return head + tail.join("");
        }
  Factor
        = "[" expr:Expression "]" { return "[<em>"+expr+"</em>]"; }
        / RegularChar
  RegularChar
        = [^\[\]]+ { return text(); }

Add some text in the input box

Such as:

[test1] test2 ([[readonly ][optionality ][argumentType ]argumentName[ = defaultValue]]...) [test3] test4

Notice it breaks when there are unclosed [ or unopened ]. Try:

[this one is closed] but [this one is not

Watch the output

If it is OK, then go and generate the .js. If not, edit the grammar until so.