Function firstCompleteTableEnd

src/patch-streaming-html.ts:290–330

(
  track: string,
  tableStart: number,
)

/** Character index in `track` immediately after the first balanced </table>, or -1. */
export function firstCompleteTableEnd(
  track: string,
  tableStart: number,
): number {
  if (tableStart < 0 || tableStart >= track.length) {
    return -1;
  }

  const openMatch = track.slice(tableStart).match(/^<table\b[^>]*>/i);
  if (!openMatch) {
    return -1;
  }

  let depth = 1;
  let i = tableStart + openMatch[0]!.length;

  while (i < track.length && depth > 0) {
    if (track[i] === "<") {
      const rest = track.slice(i);
      const closeMatch = rest.match(/^<\/table\s*>/i);
      if (closeMatch) {
        depth--;
        i += closeMatch[0]!.length;
        if (depth === 0) {
          return i;
        }
        continue;
      }

      const nestedOpen = rest.match(/^<table\b[^>]*>/i);
      if (nestedOpen) {
        depth++;
        i += nestedOpen[0]!.length;
        continue;
      }
    }
    i++;
  }

  return -1;
}

function assembleTableSectionHtml(tableSection: string): string {
  const parts = splitTableStream(tableSection);