Function string2Segment

packages/core/src/utils/string.ts:184–250

(str: string)

 * @returns {ISegment[]}
 */
export function string2Segment(str: string): ISegment[] {
  const segmentList: ISegment[] = [];
  const urlTmp: {
    [index: number]: {
      text: string;
      hasScheme?: boolean;
      type: SegmentType.Url | SegmentType.Email;
    };
  } = {};
  // match URL
  const urlMatch = [...str.matchAll(LINK_REG)];
  const emailMatch = [...str.matchAll(EMAIL_REG)];

  // If there is no URL/Email match, return directly to reduce unnecessary calculations
  if (!urlMatch.length && !emailMatch.length) {
    segmentList.push({
      type: SegmentType.Text,
      text: str,
    });
    return segmentList;
  }

  urlMatch.forEach(element => {
    const text = element[0]!;
    const hasScheme = Boolean(element[15]);
    const index = element.index!;
    urlTmp[index] = { text, hasScheme, type: SegmentType.Url };
  });

  emailMatch.forEach(ele => {
    const text = ele[0]!;
    const index = ele.index!;
    urlTmp[index] = { text, type: SegmentType.Email };
  });

  let seg = '';
  let cur = 0;
  while (cur < str.length) {
    if (cur in urlTmp) {
      if (seg.length) {
        segmentList.push({
          type: SegmentType.Text,
          text: seg,
        });
        seg = '';
      }
      const { text, type } = urlTmp[cur]!;
      segmentList.push({
        type,
        text,
        link: text,
      });
      cur += text.length;
    } else {
      seg += str[cur];
      cur++;
    }
  }