docs: function collectComments(content, comments) {
  
      const table = []
  
      let from = 0
      let end
  
      while (true) {
  
          let start = content.indexOf('/*', from)
  
          if (start > -1) {
  
              end = content.indexOf('*/', start + 2)
  
              if (end > -1) {
                  comments.push(content.slice(start + 2, end))
                  table.push(content.slice(from, start))
                  table.push('/*___PRESERVE_CANDIDATE_COMMENT_' + (comments.length - 1) + '___*/')
                  from = end + 2
  
              } else {
                  // unterminated comment
                  end = -2
                  break
              }
  
          } else {
              break
          }
      }
  
      table.push(content.slice(end + 2))
  
      return table.join('')
  }