Function parseSegments

src/cli/render/assistant-message.tsx:42–71

(text: string)

/** Split a message into alternating prose and fenced-code segments. */
export function parseSegments(text: string): Segment[] {
  const segments: Segment[] = [];
  const fence = /```([^\n`]*)\n?([\s\S]*?)```/g;
  let last = 0;
  let m: RegExpExecArray | null;
  while ((m = fence.exec(text)) !== null) {
    if (m.index > last) {
      const prose = text.slice(last, m.index);
      if (prose.trim()) segments.push({ kind: 'text', body: normalizeProse(prose) });
    }
    segments.push({ kind: 'code', lang: (m[1] ?? '').trim(), body: (m[2] ?? '').replace(/\n$/, '') });
    last = fence.lastIndex;
  }
  if (last < text.length) {
    const tail = text.slice(last);
    // A trailing, still-open fence (mid-stream): render what follows it as a code
    // card flagged incomplete, so streaming code is boxed as it arrives rather
    // than dumped raw until the closing ``` finally lands.
    const open = tail.match(/```([^\n`]*)\n?/);
    if (open && open.index !== undefined) {
      const before = tail.slice(0, open.index);
      if (before.trim()) segments.push({ kind: 'text', body: normalizeProse(before) });
      const codeBody = tail.slice(open.index + open[0].length);
      segments.push({ kind: 'code', lang: (open[1] ?? '').trim(), body: codeBody.replace(/\n$/, ''), incomplete: true });
    } else if (tail.trim()) {
      segments.push({ kind: 'text', body: normalizeProse(tail) });
    }
  }
  return segments.length ? segments : [{ kind: 'text', body: normalizeProse(text) }];
}

// ---------------------------------------------------------------------------
// Inline emphasis: render **bold** and `code` instead of stripping the markers.