// 验证 Markdown.tsx 的 parseBlocks 是否产出空内容
const INLINE = /^(\s*)([-*+]\s+|\d+[.)]\s+|>\s?|(#{1,3}\s+))?(.*)$/

function parseBlocks(text) {
  const blocks = []
  const lines = text.split('\n')
  let current = null
  const flush = () => {
    if (current) blocks.push(current)
    current = null
  }
  for (const line of lines) {
    const m = line.match(INLINE)
    if (!m) continue
    const [, indent, marker, content] = m
    const isListItem = Boolean(marker && /^([-*+]\s+|\d+[.)]\s+)/.test(marker))
    const kind = marker
      ? marker.startsWith('#')
        ? 'h1'
        : isListItem
          ? /^\d/.test(marker) ? 'ol' : 'ul'
          : marker.startsWith('>') ? 'quote' : null
      : 'p'
    if (kind === 'p') {
      if (!current || current.kind !== 'p') {
        flush()
        current = { kind: 'p', lines: [] }
      }
      current.lines.push(content)
      continue
    }
    flush()
  }
  return blocks
}

for (const t of ['pong', 'Hello world', '# 标题', '- 列表项', '> 引用', '1. 有序']) {
  const blocks = parseBlocks(t)
  const rendered = blocks.map((b) => b.lines.join('\n'))
  console.log(JSON.stringify(t), '->', JSON.stringify(rendered))
}