Function rebuildImgCaption

pmcaptcha/pmcaptcha.ts:768–783

重建图片验证码的 caption 文本

(state: CaptchaState)

  function buildFooter(): string {
    const lines: string[] = [];
    if (timeout > 0)  lines.push(`⏱ 验证时间：<b>${htmlEscape(timeout)}</b> 秒`);
    if (maxTries > 0) lines.push(`🔢 剩余次数：<b>${htmlEscape(remaining > 0 ? remaining : maxTries)}</b> 次`);
    lines.push(`⚠️ 验证失败将会：${htmlEscape(actionDesc)}`);
    return lines.length ? "\n\n" + lines.join("\n") : "";
  }

  switch (state.mode) {
    case CaptchaMode.MATH: {
      const footer = buildFooter();
      return custom
        ? htmlEscape(custom).replace("{question}", htmlEscape(state.question))
        : `🔒 <b>人机验证</b>\n\n请回复以下算式的答案：\n\n${codeTag(`${state.question} = ?`)}${footer}`;
    }
    case CaptchaMode.TEXT: {
      const footer = buildFooter();
      if (state.isQA) {
        return `🔒 <b>人机验证</b>\n\n请回答以下问题：\n\n<b>${htmlEscape(state.question)}</b>${footer}`;
      } else {