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js-string-compare.html
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953 lines (823 loc) · 32.2 KB
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>JS String Diff Tool</title>
<!-- Google Fonts: Roboto (UI), M PLUS 1p (Code), Material Symbols Rounded (Icons) -->
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=M+PLUS+1p:wght@400;500;700&family=Rubik:wght@400;500;700&family=Material+Symbols+Rounded:opsz,wght,FILL,GRAD@20..48,100..700,0..1,-50..200&display=swap" rel="stylesheet">
<style>
:root {
/* Custom Palette mapped to M3 Tokens */
--color-custom-bg: #001926;
--color-custom-primary: #76FF33;
--color-custom-secondary: #BFD5FF;
/* M3 Dark Theme System Colors Override */
--md-sys-color-background: var(--color-custom-bg);
--md-sys-color-on-background: #E2E2E9;
--md-sys-color-primary: var(--color-custom-primary);
--md-sys-color-on-primary: #002800; /* Dark green for contrast on neon green */
--md-sys-color-primary-container: rgba(118, 255, 51, 0.15);
--md-sys-color-on-primary-container: #ccffb3;
--md-sys-color-error: #FFB4AB;
--md-sys-color-on-error: #690005;
--md-sys-color-error-container: #93000A;
--md-sys-color-on-error-container: #FFDAD6;
/* Surface Tones based on Dark Blue #001926 */
--md-sys-color-surface: #001926;
--md-sys-color-surface-container: #002233; /* Slightly lighter than bg */
--md-sys-color-surface-container-high: #002b40;
--md-sys-color-surface-container-highest: #00334d;
--md-sys-color-outline: var(--color-custom-secondary);
--md-sys-color-outline-variant: rgba(191, 213, 255, 0.2);
--md-ref-typeface-brand: 'Rubik', sans-serif;
--md-ref-typeface-plain: 'Rubik', sans-serif;
--md-ref-typeface-code: 'M PLUS 1p', monospace;
--md-sys-shape-corner-large: 24px;
--md-sys-shape-corner-medium: 16px;
--md-sys-shape-corner-small: 12px;
--md-sys-shape-corner-extra-small: 8px;
--md-sys-elevation-2: 0px 4px 8px 3px rgba(0,0,0,0.15), 0px 1px 3px rgba(0,0,0,0.3);
--md-sys-elevation-3: 0px 4px 8px 3px rgba(0,0,0,0.15), 0px 1px 3px rgba(0,0,0,0.3);
}
/* Base Reset */
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: none; }
body {
font-family: var(--md-ref-typeface-plain);
background-color: var(--md-sys-color-background);
color: var(--md-sys-color-on-background);
margin: 0;
padding: 0;
min-height: 100vh;
display: flex;
flex-direction: column;
}
/* Material Symbols Utility */
.material-symbols-rounded {
font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
font-size: 24px;
vertical-align: middle;
}
.icon-filled { font-variation-settings: 'FILL' 1; }
/* Font Loading State */
body > header, body > main {
opacity: 0;
transition: opacity 0.8s cubic-bezier(0.2, 0, 0, 1);
}
body.fonts-loaded > header, body.fonts-loaded > main {
opacity: 1;
}
#startup-loader {
position: fixed; inset: 0;
background: var(--md-sys-color-background);
z-index: 9999;
display: flex;
justify-content: center; align-items: center;
transition: opacity 0.5s ease, visibility 0.5s;
}
body.fonts-loaded #startup-loader {
opacity: 0;
visibility: hidden;
}
/* App Bar */
header {
padding: 24px 24px 24px 24px;
background: var(--md-sys-color-surface);
display: flex;
flex-direction: column;
gap: 8px;
position: sticky;
top: 0;
z-index: 10;
}
h1 {
font-size: 2.25rem; /* Display Small/Medium */
margin: 0;
font-weight: 400;
color: var(--md-sys-color-on-background);
display: flex;
align-items: center;
gap: 12px;
}
h1 .brand-icon {
color: var(--md-sys-color-primary);
font-size: 32px;
}
.subtitle {
font-size: 1rem;
color: var(--color-custom-secondary); /* Use the specific light blue */
margin-left: 44px;
opacity: 0.8;
}
main {
padding: 0 24px 24px;
display: flex;
flex-direction: column;
gap: 24px;
flex: 1;
max-width: 1600px;
width: 100%;
margin: 0 auto;
}
/* Card System */
.card {
background: var(--md-sys-color-surface-container);
border-radius: var(--md-sys-shape-corner-large);
padding: 24px;
display: flex;
flex-direction: column;
position: relative;
transition: background 0.2s, box-shadow 0.2s;
}
/* Control Section */
.controls-area {
display: grid;
grid-template-columns: 1fr 1fr auto;
gap: 16px;
align-items: stretch;
}
/* File Input Card */
.file-card {
cursor: pointer;
border: 1px solid transparent;
min-height: 120px;
justify-content: center;
}
.file-card:hover {
background: var(--md-sys-color-surface-container-high);
}
.file-card.has-file {
background: var(--md-sys-color-surface-container-highest);
border: 1px solid var(--md-sys-color-primary);
}
.file-card input {
position: absolute; inset: 0; opacity: 0; cursor: pointer; z-index: 2;
}
.file-meta {
display: flex;
align-items: center;
gap: 16px;
}
.file-icon-box {
width: 48px; height: 48px;
border-radius: 12px;
background: var(--md-sys-color-surface-container-high);
color: var(--md-sys-color-outline);
display: flex;
align-items: center;
justify-content: center;
transition: 0.3s;
}
.file-card.has-file .file-icon-box {
background: var(--md-sys-color-primary-container);
color: var(--md-sys-color-on-primary-container);
}
.file-info {
display: flex;
flex-direction: column;
gap: 4px;
overflow: hidden;
}
.file-label {
font-size: 0.8rem;
text-transform: uppercase;
letter-spacing: 0.5px;
font-weight: 500;
color: var(--color-custom-secondary); /* Adjusted to match palette preference */
opacity: 0.7;
}
.file-name {
font-family: var(--md-ref-typeface-code);
font-size: 1rem;
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
color: var(--md-sys-color-on-background);
}
/* Action Buttons */
.actions-col {
display: flex;
flex-direction: column;
gap: 12px;
justify-content: center;
min-width: 200px;
}
.btn {
height: 56px;
border-radius: 28px; /* Full pill */
border: none;
font-family: var(--md-ref-typeface-plain);
font-size: 1rem;
font-weight: 500;
display: flex;
align-items: center;
justify-content: center;
gap: 8px;
cursor: pointer;
transition: 0.2s cubic-bezier(0.2, 0, 0, 1);
padding: 0 24px;
}
.btn:disabled {
opacity: 0.38;
cursor: not-allowed;
pointer-events: none;
}
/* Filled Button (Primary) */
.btn-filled {
background: var(--md-sys-color-primary);
color: #001926; /* Force dark text on bright neon green */
font-weight: 700;
box-shadow: 0 1px 2px rgba(0,0,0,0.3);
}
.btn-filled:hover {
box-shadow: 0 2px 6px rgba(0,0,0,0.4);
filter: brightness(1.05);
}
.btn-filled:active {
transform: scale(0.98);
}
/* Tonal Button (Secondary) */
.btn-tonal {
background: var(--md-sys-color-surface-container-highest);
color: var(--md-sys-color-on-background);
}
.btn-tonal:hover {
background: rgba(226, 226, 233, 0.15);
}
/* Hidden / Active State */
.hidden { display: none !important; }
/* Results Area */
.results-area {
display: grid;
grid-template-columns: 1fr 1fr;
gap: 24px;
flex: 1;
min-height: 0; /* Important for scroll */
}
.result-panel {
background: var(--md-sys-color-surface-container);
border-radius: var(--md-sys-shape-corner-large);
display: flex;
flex-direction: column;
overflow: hidden;
border: 1px solid var(--md-sys-color-outline-variant);
}
.panel-header {
padding: 20px 24px;
display: flex;
justify-content: space-between;
align-items: center;
background: rgba(0,0,0,0.2);
border-bottom: 1px solid var(--md-sys-color-outline-variant);
}
.panel-title {
font-size: 1.1rem;
font-weight: 500;
display: flex;
align-items: center;
gap: 12px;
}
.badge-count {
background: var(--md-sys-color-background);
padding: 4px 12px;
border-radius: 12px;
font-family: var(--md-ref-typeface-code);
font-size: 0.9rem;
font-weight: 700;
}
/* List Styling */
.list-viewport {
flex: 1;
overflow-y: auto;
padding: 12px;
display: flex;
flex-direction: column;
gap: 4px;
}
.list-item {
font-family: var(--md-ref-typeface-code);
font-size: 0.9rem;
padding: 12px 16px;
border-radius: 8px;
color: var(--md-sys-color-on-background);
word-break: break-all;
transition: background 0.1s;
}
.list-item:hover {
background: rgba(255,255,255,0.05);
}
/* Specific Colors for Add/Remove */
.col-added .panel-title { color: var(--md-sys-color-primary); }
.col-added .badge-count { color: #001926; background: var(--md-sys-color-primary); }
.col-added .list-item { color: #D7FFC4; }
/* UPDATED: User requested FF6666 for Removed Content text and badge */
.col-removed .panel-title { color: #FF6666; }
.col-removed .badge-count { color: #001926; background: #FF6666; }
.col-removed .list-item { color: #FFDADB; }
/* States */
.empty-state {
padding: 48px;
text-align: center;
color: var(--md-sys-color-outline);
display: flex;
flex-direction: column;
align-items: center;
gap: 16px;
}
.empty-state .material-symbols-rounded { font-size: 48px; opacity: 0.5; }
/* Loading */
#loading-overlay {
position: fixed; inset: 0;
background: rgba(17, 20, 24, 0.9);
backdrop-filter: blur(4px);
z-index: 100;
display: none;
justify-content: center; align-items: center;
flex-direction: column; gap: 24px;
}
.progress-indicator {
width: 48px; height: 48px;
border: 4px solid var(--md-sys-color-surface-container-highest);
border-top-color: var(--md-sys-color-primary);
border-radius: 50%;
animation: spin 1s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
/* Scrollbars */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--md-sys-color-outline-variant); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--md-sys-color-outline); }
/* Responsive */
@media (max-width: 900px) {
.controls-area { grid-template-columns: 1fr; }
.actions-col { flex-direction: row; }
.btn { flex: 1; }
.results-area { grid-template-columns: 1fr; }
.result-panel { max-height: 500px; }
}
</style>
</head>
<body>
<!-- Initial Font Loader -->
<div id="startup-loader">
<div class="progress-indicator"></div>
</div>
<!-- Loading Overlay (Processing) -->
<div id="loading-overlay">
<div class="progress-indicator"></div>
<div style="font-weight: 500; letter-spacing: 0.5px;" data-i18n="loading">PROCESSING...</div>
</div>
<header>
<h1>
<span class="material-symbols-rounded brand-icon icon-filled">difference</span>
JS String Diff
</h1>
<div class="subtitle" data-i18n="subtitle">Deep String Comparison Tool</div>
</header>
<main>
<!-- Controls Section -->
<section class="controls-area">
<!-- Old File Input -->
<div class="card file-card" id="card-old">
<input type="file" id="file-old" accept=".js,.txt,.json">
<div class="file-meta">
<div class="file-icon-box">
<span class="material-symbols-rounded">description</span>
</div>
<div class="file-info">
<span class="file-label" data-i18n="label_old">Old File</span>
<span class="file-name" id="name-old" data-i18n="select_file">Select File...</span>
</div>
</div>
</div>
<!-- New File Input -->
<div class="card file-card" id="card-new">
<input type="file" id="file-new" accept=".js,.txt,.json">
<div class="file-meta">
<div class="file-icon-box">
<span class="material-symbols-rounded">description</span>
</div>
<div class="file-info">
<span class="file-label" data-i18n="label_new">New File</span>
<span class="file-name" id="name-new" data-i18n="select_file">Select File...</span>
</div>
</div>
</div>
<!-- Action Buttons -->
<div class="actions-col">
<button id="compare-btn" class="btn btn-filled">
<span class="material-symbols-rounded">play_arrow</span>
<span data-i18n="btn_compare">Compare</span>
</button>
<button id="download-btn" class="btn btn-tonal hidden">
<span class="material-symbols-rounded">download</span>
<span data-i18n="btn_download">Download TXT</span>
</button>
</div>
</section>
<!-- Results Section -->
<section class="results-area">
<!-- Added Column -->
<div class="result-panel col-added">
<div class="panel-header">
<div class="panel-title">
<span class="material-symbols-rounded icon-filled">add_circle</span>
<span data-i18n="col_added">Added</span>
</div>
<div id="count-added" class="badge-count">0</div>
</div>
<div id="list-added" class="list-viewport">
<div class="empty-state">
<span class="material-symbols-rounded">pending</span>
<span data-i18n="waiting">Ready to start</span>
</div>
</div>
</div>
<!-- Removed Column -->
<div class="result-panel col-removed">
<div class="panel-header">
<div class="panel-title">
<span class="material-symbols-rounded icon-filled">remove_circle</span>
<span data-i18n="col_removed">Removed</span>
</div>
<div id="count-removed" class="badge-count">0</div>
</div>
<div id="list-removed" class="list-viewport">
<div class="empty-state">
<span class="material-symbols-rounded">pending</span>
<span data-i18n="waiting">Ready to start</span>
</div>
</div>
</div>
</section>
</main>
<script>
// --- Font Loading Logic ---
document.fonts.ready.then(() => {
// Slight delay to ensure smooth transition
setTimeout(() => {
document.body.classList.add('fonts-loaded');
}, 100);
});
// --- I18n & Language Detection ---
const translations = {
zh: {
page_title: "JS 字符串比对工具",
subtitle: "深度字符串差异分析工具",
label_old: "旧文件 (Old)",
label_new: "新文件 (New)",
select_file: "点击选择文件...",
btn_compare: "开始比对",
btn_download: "下载报告 (.txt)",
col_added: "新增内容",
col_removed: "移除内容",
waiting: "等待操作...",
empty: "无相关内容",
loading: "正在深度解析...",
alert_files: "请先选择两个文件！",
alert_error: "发生错误: ",
hidden_more: "... 还有 {n} 条数据已隐藏",
base64_mark: "[Base64 Decoded]"
},
en: {
page_title: "JS String Diff Tool",
subtitle: "Deep String Comparison Tool",
label_old: "Old File",
label_new: "New File",
select_file: "Select File...",
btn_compare: "Compare",
btn_download: "Download TXT",
col_added: "Added Content",
col_removed: "Removed Content",
waiting: "Ready to start",
empty: "No content",
loading: "Deep Parsing...",
alert_files: "Please select two files first!",
alert_error: "Error occurred: ",
hidden_more: "... {n} more items hidden",
base64_mark: "[Base64 Decoded]"
}
};
// Language Setup
const userLang = navigator.language || navigator.userLanguage;
const currentLang = userLang.startsWith('zh') ? 'zh' : 'en';
const t = (key) => translations[currentLang][key] || key;
function applyTranslations() {
document.title = t('page_title');
document.querySelectorAll('[data-i18n]').forEach(el => {
const key = el.getAttribute('data-i18n');
el.textContent = t(key);
});
}
applyTranslations();
// --- Helpers ---
const nextTick = () => new Promise(r => setTimeout(r, 0));
// --- UI Binding ---
const bindInput = (inputId, nameId, cardId) => {
const input = document.getElementById(inputId);
const nameEl = document.getElementById(nameId);
const cardEl = document.getElementById(cardId);
input.addEventListener('change', () => {
if (input.files[0]) {
nameEl.textContent = input.files[0].name;
cardEl.classList.add('has-file');
// If replacing a file after comparison, hide download until re-compared
document.getElementById('download-btn').classList.add('hidden');
} else {
nameEl.textContent = t('select_file');
cardEl.classList.remove('has-file');
}
});
};
bindInput('file-old', 'name-old', 'card-old');
bindInput('file-new', 'name-new', 'card-new');
const readFile = (file) => new Promise((resolve) => {
if (!file) return resolve('');
const reader = new FileReader();
reader.onload = e => resolve(e.target.result);
reader.readAsText(file);
});
// --- Core Logic ---
let diffResults = {
added:[],
removed:[],
oldFileName: '',
newFileName: '',
timestamp: ''
};
async function extractStrings(content) {
if (!content) return new Set();
const strings = new Set();
const len = content.length;
const CHUNK = 50000;
const S_CODE = 0;
const S_STR_DOUBLE = 1;
const S_STR_SINGLE = 2;
const S_STR_BACK = 3;
const S_REGEX = 4;
const S_COMMENT_LINE = 5;
const S_COMMENT_BLOCK = 6;
let mode = S_CODE;
let buffer = '';
let isEscaped = false;
let lastSignificantChar = ';';
let lastWord = '';
for (let i = 0; i < len; i++) {
if (i % CHUNK === 0) await nextTick();
const char = content[i];
const next = content[i+1] || '';
if (mode === S_CODE) {
if (char === '"') { mode = S_STR_DOUBLE; buffer = ''; isEscaped = false; }
else if (char === "'") { mode = S_STR_SINGLE; buffer = ''; isEscaped = false; }
else if (char === '`') { mode = S_STR_BACK; buffer = ''; isEscaped = false; }
else if (char === '/' && next === '/') { mode = S_COMMENT_LINE; i++; }
else if (char === '/' && next === '*') { mode = S_COMMENT_BLOCK; i++; }
else if (char === '/') {
if (isRegexStart(lastSignificantChar, lastWord)) {
mode = S_REGEX;
isEscaped = false;
} else {
lastSignificantChar = '/';
lastWord = '';
}
}
else {
if (char > ' ') {
lastSignificantChar = char;
if (isAlpha(char)) lastWord += char;
else lastWord = '';
}
}
}
else if (mode === S_STR_DOUBLE || mode === S_STR_SINGLE || mode === S_STR_BACK) {
let endChar = '"';
if (mode === S_STR_SINGLE) endChar = "'";
if (mode === S_STR_BACK) endChar = '`';
if (isEscaped) {
buffer += '\\' + char;
isEscaped = false;
} else if (char === '\\') {
isEscaped = true;
} else if (char === endChar) {
addString(strings, buffer);
mode = S_CODE;
lastSignificantChar = 's';
lastWord = '';
} else {
buffer += char;
}
}
else if (mode === S_REGEX) {
if (isEscaped) isEscaped = false;
else if (char === '\\') isEscaped = true;
else if (char === '/') {
mode = S_CODE;
lastSignificantChar = 'r';
lastWord = '';
}
}
else if (mode === S_COMMENT_LINE) {
if (char === '\n' || char === '\r') mode = S_CODE;
}
else if (mode === S_COMMENT_BLOCK) {
if (char === '*' && next === '/') { mode = S_CODE; i++; }
}
}
return strings;
}
function isRegexStart(prevChar, prevWord) {
const regexStarters = new Set([
'(', ',', '=', ':', '[', '!', '&', '|', '?', '{', '}', ';',
'+', '-', '*', '%', '^', '~', '<', '>'
]);
if (regexStarters.has(prevChar)) return true;
if (prevWord) {
const keywords = new Set(['return', 'throw', 'case', 'delete', 'typeof', 'void', 'await', 'yield', 'else']);
if (keywords.has(prevWord)) return true;
}
return false;
}
function isAlpha(char) {
return (char >= 'a' && char <= 'z') || (char >= 'A' && char <= 'Z');
}
// Attempt to decode valid Base64 strings safely
function decodeBase64IfValid(str) {
// Prevent trivial false positives (e.g. short variable names like "VQ==")
if (str.length < 16) return str;
// Base64 valid length check
if (str.length % 4 !== 0) return str;
// Regex for Base64 characters (including URL safe characters)
if (!/^[A-Za-z0-9+/_-]+={0,2}$/.test(str)) return str;
try {
// Transform URL-safe Base64 to standard Base64
const b64 = str.replace(/-/g, '+').replace(/_/g, '/');
const decodedBytes = atob(b64);
// Validate and convert to UTF-8
// If the base64 does not decode to a valid UTF-8 text string, this will throw an error and be caught
const decodedText = decodeURIComponent(escape(decodedBytes));
// Screen out strings that contain unprintable control characters (Allow \t, \n, \r)
if (/[\x00-\x08\x0B\x0C\x0E-\x1F\x7F]/.test(decodedText)) {
return str;
}
// Exclude if it's purely empty or space
if (!decodedText.trim()) return str;
return decodedText + ' ' + t('base64_mark');
} catch (e) {
// Not a valid base64 encoded text (either binary data or not UTF-8)
return str;
}
}
function addString(set, raw) {
try {
let clean = raw
.replace(/\\\\/g, '\\')
.replace(/\\"/g, '"')
.replace(/\\'/g, "'")
.replace(/\\`/g, '`')
.replace(/\\n/g, '\n')
.replace(/\\t/g, '\t')
.replace(/\\\//g, '/');
clean = clean.trim();
// Base64 Detection & Decoding
let isBase64 = false;
let decoded = decodeBase64IfValid(clean);
if (decoded !== clean) {
clean = decoded;
isBase64 = true; // If correctly decoded from Base64, definitively flag for inclusion
}
// If it was Base64 encoded payload, always consider it useful.
// Otherwise, apply general validation
if (isBase64 || isUseful(clean)) {
set.add(clean);
}
} catch (e) {}
}
function isUseful(str) {
if (str.length < 2) return false;
if (str.includes('/') && str.includes('.')) return str.length < 300;
if (!/[a-zA-Z0-9\u4e00-\u9fa5]/.test(str)) return false;
const keywords = /^(var|const|let|function|return|import|export|from|true|false|null|undefined|if|else|switch|case|break|try|catch|class|typeof|void|delete|new|this|window|document|Math|Object|Array|String|Date|Error|Promise|JSON|console|=>|===|!==|==|!=|\+=|\-=|\+\+|\-\-)$/;
if (keywords.test(str)) return false;
const open = (str.match(/\(/g)||[]).length;
const close = (str.match(/\)/g)||[]).length;
if (open !== close) return false;
return true;
}
// --- Main Logic ---
document.getElementById('compare-btn').addEventListener('click', async () => {
const btn = document.getElementById('compare-btn');
const downloadBtn = document.getElementById('download-btn');
const loading = document.getElementById('loading-overlay');
const fileOldInput = document.getElementById('file-old');
const fileNewInput = document.getElementById('file-new');
if (!fileOldInput.files[0] || !fileNewInput.files[0]) {
alert(t('alert_files'));
return;
}
const fileOld = fileOldInput.files[0];
const fileNew = fileNewInput.files[0];
// UI Reset
btn.disabled = true;
downloadBtn.classList.add('hidden');
loading.style.display = 'flex';
renderList('list-added', [], 'count-added');
renderList('list-removed',[], 'count-removed');
try {
await nextTick();
const [txtOld, txtNew] = await Promise.all([readFile(fileOld), readFile(fileNew)]);
const [setOld, setNew] = await Promise.all([
extractStrings(txtOld),
extractStrings(txtNew)
]);
const added = [];
const removed =[];
let i = 0;
for (const s of setNew) {
if (!setOld.has(s)) added.push(s);
if (++i % 5000 === 0) await nextTick();
}
i = 0;
for (const s of setOld) {
if (!setNew.has(s)) removed.push(s);
if (++i % 5000 === 0) await nextTick();
}
added.sort();
removed.sort();
diffResults = {
added: added,
removed: removed,
oldFileName: fileOld.name,
newFileName: fileNew.name,
timestamp: new Date().toISOString()
};
renderList('list-added', added, 'count-added');
renderList('list-removed', removed, 'count-removed');
downloadBtn.classList.remove('hidden');
} catch (err) {
console.error(err);
alert(t('alert_error') + err.message);
} finally {
loading.style.display = 'none';
btn.disabled = false;
}
});
document.getElementById('download-btn').addEventListener('click', () => {
if (!diffResults.added.length && !diffResults.removed.length && !diffResults.oldFileName) return;
const dateStr = new Date().toUTCString();
const content = `JS String Diff Report
Generated: ${dateStr}
Old File: ${diffResults.oldFileName}
New File: ${diffResults.newFileName}
--------------------------------------------------
=== ADDED STRINGS (${diffResults.added.length}) ===
${diffResults.added.join('\n')}
\n
=== REMOVED STRINGS (${diffResults.removed.length}) ===
${diffResults.removed.join('\n')}
`;
const blob = new Blob([content], { type: 'text/plain;charset=utf-8' });
const url = URL.createObjectURL(blob);
const a = document.createElement('a');
a.href = url;
// Naming Convention: old_to_new.txt (Using _to_ as safe separator)
a.download = `${diffResults.oldFileName}_to_${diffResults.newFileName}.txt`;
document.body.appendChild(a);
a.click();
document.body.removeChild(a);
URL.revokeObjectURL(url);
});
function renderList(containerId, list, countId) {
const container = document.getElementById(containerId);
document.getElementById(countId).textContent = list.length;
container.innerHTML = '';
if (list.length === 0) {
container.innerHTML = `
<div class="empty-state">
<span class="material-symbols-rounded">check_circle</span>
<span>${t('empty')}</span>
</div>`;
return;
}
const LIMIT = 2000;
const frag = document.createDocumentFragment();
for (let i = 0; i < Math.min(list.length, LIMIT); i++) {
const div = document.createElement('div');
div.className = 'list-item';
div.textContent = list[i];
frag.appendChild(div);
}
if (list.length > LIMIT) {
const more = document.createElement('div');
more.className = 'empty-state';
more.style.padding = '12px';
more.textContent = t('hidden_more').replace('{n}', list.length - LIMIT);
frag.appendChild(more);
}
container.appendChild(frag);
}
</script>
</body>
</html>