Hide past tense verbs, show base form on hover, and reveal past tense on click with improved accuracy
// ==UserScript==
// @name Enhanced Past Tense Verb Highlighter
// @namespace http://tampermonkey.net/
// @version 0.4
// @description Hide past tense verbs, show base form on hover, and reveal past tense on click with improved accuracy
// @match *://*/*
// @grant none
// ==/UserScript==
(function() {
'use strict';
// 扩展的不规则动词词典
const irregularVerbs = {
'arose': 'arise',
'awoke': 'awake',
'was': 'be',
'were': 'be',
'bore': 'bear',
'beat': 'beat',
'became': 'become',
'began': 'begin',
'bent': 'bend',
'bet': 'bet',
'bound': 'bind',
'bit': 'bite',
'bled': 'bleed',
'blew': 'blow',
'broke': 'break',
'bred': 'breed',
'brought': 'bring',
'broadcast': 'broadcast',
'built': 'build',
'burnt': 'burn',
'burned': 'burn',
'burst': 'burst',
'bought': 'buy',
'caught': 'catch',
'chose': 'choose',
'clung': 'cling',
'came': 'come',
'cost': 'cost',
'crept': 'creep',
'cut': 'cut',
'dealt': 'deal',
'dug': 'dig',
'did': 'do',
'drew': 'draw',
'dreamt': 'dream',
'dreamed': 'dream',
'drank': 'drink',
'drove': 'drive',
'ate': 'eat',
'fell': 'fall',
'fed': 'feed',
'felt': 'feel',
'fought': 'fight',
'found': 'find',
'flew': 'fly',
'forbade': 'forbid',
'forgot': 'forget',
'forgave': 'forgive',
'froze': 'freeze',
'got': 'get',
'gave': 'give',
'went': 'go',
'ground': 'grind',
'grew': 'grow',
'hung': 'hang',
'had': 'have',
'heard': 'hear',
'hid': 'hide',
'hit': 'hit',
'held': 'hold',
'hurt': 'hurt',
'kept': 'keep',
'knelt': 'kneel',
'knew': 'know',
'laid': 'lay',
'led': 'lead',
'leant': 'lean',
'leaned': 'lean',
'learnt': 'learn',
'learned': 'learn',
'left': 'leave',
'lent': 'lend',
'lay': 'lie',
'lied': 'lie',
'lit': 'light',
'lighted': 'light',
'lost': 'lose',
'made': 'make',
'meant': 'mean',
'met': 'meet',
'mowed': 'mow',
'overtook': 'overtake',
'paid': 'pay',
'put': 'put',
'read': 'read',
'rode': 'ride',
'rang': 'ring',
'rose': 'rise',
'ran': 'run',
'sawed': 'saw',
'said': 'say',
'saw': 'see',
'sold': 'sell',
'sent': 'send',
'set': 'set',
'sewed': 'sew',
'shook': 'shake',
'shed': 'shed',
'shone': 'shine',
'asked': 'ask',
'believed': 'believe',
'called': 'call',
'changed': 'change',
'continued': 'continue',
'cooked': 'cook',
'danced': 'dance',
'enjoyed': 'enjoy',
'followed': 'follow',
'happened': 'happen',
'helped': 'help',
'included': 'include',
'jumped': 'jump',
'liked': 'like',
'lived': 'live',
'looked': 'look',
'moved': 'move',
'needed': 'need',
'opened': 'open',
'played': 'play',
'provided': 'provide',
'rained': 'rain',
'seemed': 'seem',
'showed': 'show',
'started': 'start',
'studied': 'study',
'talked': 'talk',
'tried': 'try',
'turned': 'turn',
'used': 'use',
'visited': 'visit',
'walked': 'walk',
'wanted': 'want',
'watched': 'watch',
'worked': 'work',
'phoned': 'phone',
'celebrated': 'celebrate'
};
// 添加 CSS 样式
const style = document.createElement('style');
style.textContent = `
.verb-tooltip {
color: transparent;
border-bottom: 1px dotted black;
cursor: help;
position: relative;
}
.verb-tooltip.show-past {
color: inherit;
background-color: yellow;
transition: color 0.3s, background-color 0.3s;
}
.verb-tooltip::before {
content: attr(data-base-form);
position: absolute;
bottom: 100%;
left: 50%;
transform: translateX(-50%);
background-color: #333;
color: white;
padding: 5px;
border-radius: 3px;
font-size: 14px;
white-space: nowrap;
opacity: 0;
transition: opacity 0.3s;
pointer-events: none;
}
.verb-tooltip:hover::before {
opacity: 1;
}
`;
document.head.appendChild(style);
// 遍历文本节点的函数
function walkTextNodes(node) {
if (node.nodeType === Node.TEXT_NODE) {
processTextNode(node);
} else {
for (let child of node.childNodes) {
walkTextNodes(child);
}
}
}
// 处理文本节点的函数
function processTextNode(textNode) {
const text = textNode.nodeValue;
const regex = /\b(?!(?:hundred|thousand|indeed|need|filled|used|shared|argued)\b)(\w+ed|went|saw|was|were)\b/g;
let match;
let lastIndex = 0;
const fragments = [];
while ((match = regex.exec(text)) !== null) {
const verb = match[1];
const baseForm = getBaseForm(verb);
fragments.push(
document.createTextNode(text.slice(lastIndex, match.index)),
createHiddenSpan(verb, baseForm)
);
lastIndex = regex.lastIndex;
}
if (fragments.length > 0) {
fragments.push(document.createTextNode(text.slice(lastIndex)));
const span = document.createElement('span');
fragments.forEach(fragment => span.appendChild(fragment));
textNode.parentNode.replaceChild(span, textNode);
}
}
// 改进的获取动词原形的函数
function getBaseForm(verb) {
// 检查是否为不规则动词
if (irregularVerbs[verb]) {
return irregularVerbs[verb];
}
// 处理规则动词
if (verb.endsWith('ed')) {
// 如果动词以'eed'结尾,只去掉最后一个'd'
if (verb.endsWith('eed')) {
return verb.slice(0, -1);
}
// 如果动词以'e'结尾加'd',只去掉'd'
if (verb.length > 3 && verb[verb.length - 3] === 'e') {
return verb.slice(0, -1);
}
// 处理双写辅音字母的情况,如'stopped' -> 'stop'
if (verb.length > 4 && verb[verb.length - 3] === verb[verb.length - 4]) {
return verb.slice(0, -3);
}
// 处理以'ied'结尾的情况,如'cried' -> 'cry'
if (verb.endsWith('ied')) {
return verb.slice(0, -3) + 'y';
}
// 处理以'e'结尾的动词，去掉'ed'
if (verb.length > 3 && verb[verb.length - 3] !== 'e') {
return verb.slice(0, -2);
}
}
// 如果不符合上述规则,返回原形
return verb;
}
// 创建隐藏的span元素
function createHiddenSpan(verb, baseForm) {
const span = document.createElement('span');
span.textContent = verb;
span.setAttribute('data-base-form', baseForm);
span.setAttribute('data-past-form', verb);
span.classList.add('verb-tooltip');
// 添加点击事件监听器
span.addEventListener('click', function(e) {
e.preventDefault(); // 防止可能的链接点击
this.classList.toggle('show-past');
// 3秒后自动隐藏
setTimeout(() => {
this.classList.remove('show-past');
}, 3000);
});
return span;
}
// 在页面加载完成后执行脚本
window.addEventListener('load', function() {
walkTextNodes(document.body);
});
})();