Remove unneeded code

        const before = text.substring(0, selectionStart);

        let beforeParen = before.lastIndexOf(OPEN);

        if (beforeParen == -1) return false;

        let beforeParenClose = before.lastIndexOf(CLOSE);

        while (beforeParenClose !== -1 && beforeParenClose > beforeParen) {

            beforeParen = before.lastIndexOf(OPEN, beforeParen - 1);

            beforeParenClose = before.lastIndexOf(CLOSE, beforeParenClose - 1);

        }

        // Find closing parenthesis around current cursor

        const after = text.substring(selectionStart);

        let afterParen = after.indexOf(CLOSE);

        if (afterParen == -1) return false;

        let afterParenOpen = after.indexOf(OPEN);

        while (afterParenOpen !== -1 && afterParen > afterParenOpen) {

            afterParen = after.indexOf(CLOSE, afterParen + 1);

            afterParenOpen = after.indexOf(OPEN, afterParenOpen + 1);

        }

        if (beforeParen === -1 || afterParen === -1) return false;

        // Set the selection to the text between the parenthesis

        const parenContent = text.substring(beforeParen + 1, selectionStart + afterParen);

            delimiters += whitespace_delimiters[i];

        }

        // seek backward until to find beggining

        // seek backward to find beginning

        while (!delimiters.includes(text[selectionStart - 1]) && selectionStart > 0) {

            selectionStart--;

        }