双击选中文本时自动去除末尾空格

双击选中文本时,自动去除末尾的空格,使选区更精准。

Mint 2025.06.28.. Lásd a legutóbbi verzió

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         双击选中文本时自动去除末尾空格
// @namespace    http://tampermonkey.net/
// @version      1.1
// @description  双击选中文本时,自动去除末尾的空格,使选区更精准。
// @author       Devol
// @match        *://*/*
// @grant        none
// ==/UserScript==

/**
 * 优化双击选中的文本范围,自动排除单词后的空格
 * @param {Event} event - 双击事件对象(未直接使用,但保留以备扩展)@license
 */
function handleDoubleClickSelection(event) {
  const selection = window.getSelection();

  
  if (selection.rangeCount === 0 || selection.rangeCount > 1) {
    return;
  }

  const range = selection.getRangeAt(0);
  const selectedText = range.toString();

  
  const matches = selectedText.match(/^[\w\u4e00-\u9fa5,。!?、;:""'']+(\s+)$/);
  if (!matches || !matches[1]) {
    return;
  }

  
  const trailingSpaceCount = matches[1].length;

  
  const newRange = range.cloneRange();
  newRange.setEnd(range.endContainer, range.endOffset - trailingSpaceCount);

  
  selection.removeAllRanges();
  selection.addRange(newRange);
}

// 添加事件监听(使用 passive 模式提升滚动性能)
document.addEventListener('dblclick', handleDoubleClickSelection, {
  passive: true,
  capture: false
})();