cat-power/node_modules/element-plus/es/hooks/use-cursor/index.mjs

function useCursor(input) {
  let selectionInfo;
  function recordCursor() {
    if (input.value == void 0)
      return;
    const { selectionStart, selectionEnd, value } = input.value;
    if (selectionStart == null || selectionEnd == null)
      return;
    const beforeTxt = value.slice(0, Math.max(0, selectionStart));
    const afterTxt = value.slice(Math.max(0, selectionEnd));
    selectionInfo = {
      selectionStart,
      selectionEnd,
      value,
      beforeTxt,
      afterTxt
    };
  }
  function setCursor() {
    if (input.value == void 0 || selectionInfo == void 0)
      return;
    const { value } = input.value;
    const { beforeTxt, afterTxt, selectionStart } = selectionInfo;
    if (beforeTxt == void 0 || afterTxt == void 0 || selectionStart == void 0)
      return;
    let startPos = value.length;
    if (value.endsWith(afterTxt)) {
      startPos = value.length - afterTxt.length;
    } else if (value.startsWith(beforeTxt)) {
      startPos = beforeTxt.length;
    } else {
      const beforeLastChar = beforeTxt[selectionStart - 1];
      const newIndex = value.indexOf(beforeLastChar, selectionStart - 1);
      if (newIndex !== -1) {
        startPos = newIndex + 1;
      }
    }
    input.value.setSelectionRange(startPos, startPos);
  }
  return [recordCursor, setCursor];
}

export { useCursor };
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