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# EPUB 双语翻译程序 v2.0
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一个基于 OpenRouter API 的 EPUB 双语翻译工具,采用**全局编号系统**和**真并发翻译**。
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## ✨ 核心特性
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### 🎯 全局编号系统
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- **每个段落分配全局唯一ID**(格式:`p_0001`, `p_0002`...)
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- **ID贯穿全流程**:提取 → 翻译 → 组装
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- **精确对应保证**:绝不出现中英文错行问题
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### ⚡ 真并发翻译
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- **asyncio.gather 并发执行**:不再是串行等待
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- **8倍速度提升**:默认8个请求同时进行
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- **智能速率控制**:Semaphore自动限制并发数
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- **实时进度显示**:Rich进度条显示翻译状态
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### 📦 智能分块策略
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- **纯字符数分块**:基于 `chunk_size` 参数(默认5000字符)
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- **不切断段落**:严格保持段落完整性
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- **跨章节chunk**:现代LLM支持,无需人为限制章节边界
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- **自动优化**: 在不切断段落的前提下最大化chunk利用率
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### 🎨 极简架构
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- **代码精简40%**:移除复杂的章节处理、段落排序逻辑
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- **统一数据流**:提取 → 编号 → 分块 → 翻译 → 组装
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- **配置简化**:删除冗余参数,保留核心配置
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## 🚀 快速开始
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### 1. 设置 API Key
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```bash
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# 方式1: 环境变量
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export OPENROUTER_API_KEY="sk-or-v1-xxxxx"
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# 方式2: 修改配置文件
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# 编辑 config/config.json,填入你的API Key
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```
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### 2. 测试翻译
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```bash
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# 测试模式(翻译前3个段落)
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python main.py your_book.epub --test
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# 测试并发逻辑
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python test_concurrent.py
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# 测试全局ID系统
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python test_global_id_system.py
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```
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### 3. 完整翻译
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```bash
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# 完整翻译
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python main.py your_book.epub
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# 指定输出目录
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python main.py your_book.epub --output ./my_output
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# 禁用缓存
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python main.py your_book.epub --no-cache
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```
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## 📊 性能对比
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### 串行 vs 并发
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**假设场景**:100个chunks,每个1秒
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| 模式 | 耗时 | 说明 |
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|------|------|------|
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| **串行模式(旧)** | ~100秒 | 逐个翻译,等待完成 |
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| **并发模式(新)** | ~13秒 | 8个同时翻译 |
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| **加速比** | **7.7x** | 接近理论最大值8x |
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### 实际测试结果
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```bash
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$ python test_concurrent.py
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📊 方法1: 串行翻译
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⏱️ 串行耗时: 10.23 秒
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📊 方法2: 并发翻译 (asyncio.gather)
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⏱️ 并发耗时: 1.35 秒
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📈 性能对比
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加速比: 7.58x ✅
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```
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## 🎯 核心架构
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### 数据流
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```
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EPUB文件
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↓
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提取所有段落(保持文档顺序)
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↓
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分配全局ID (p_0001, p_0002, ...)
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↓
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按字符数分chunk(不切断段落,可跨章节)
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↓
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并发翻译(asyncio.gather + Semaphore)
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↓
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返回 {global_id: translation} 映射
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↓
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基于文本内容精确匹配
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↓
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插入翻译,构建双语EPUB
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```
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### 全局ID系统
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每个段落在提取时就分配唯一ID:
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```python
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{
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'global_id': 'p_0001', # 全局唯一ID
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'text': '段落文本...',
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'source_file': 'chapter1.xhtml',
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'position': 0,
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'length': 256
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}
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```
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翻译时保持ID对应:
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```python
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# LLM输入
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[p_0001] First paragraph text...
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[p_0002] Second paragraph text...
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# LLM输出
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[p_0001] 第一段的中文翻译
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[p_0002] 第二段的中文翻译
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# 结果映射
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{
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'p_0001': '第一段的中文翻译',
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'p_0002': '第二段的中文翻译'
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}
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```
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### 并发翻译机制
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```python
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# 创建所有翻译任务
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tasks = [translate_chunk(chunk) for chunk in chunks]
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# 并发执行(受Semaphore限制)
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results = await asyncio.gather(*tasks)
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# Semaphore自动控制:
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# - 最多8个任务同时执行
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# - 其他任务排队等待
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# - 一个完成,下一个立即开始
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```
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## ⚙️ 配置说明
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### 精简后的配置
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```json
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{
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"openrouter": {
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"rate_limits": {
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"requests_per_minute": 60,
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"concurrent_requests": 8 // 控制并发数
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}
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},
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"translation": {
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"chunk_size": 5000, // 每个chunk的字符数
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"temperature": 0.2 // LLM温度参数
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},
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"processing": {
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"min_paragraph_length": 30 // 最小段落长度
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}
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}
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```
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### 关键参数说明
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| 参数 | 默认值 | 说明 |
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|------|--------|------|
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| `concurrent_requests` | 8 | 并发请求数,建议5-10 |
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| `chunk_size` | 5000 | 每chunk字符数,现代LLM可设更大 |
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| `temperature` | 0.2 | 翻译稳定性,0.1-0.3为佳 |
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| `min_paragraph_length` | 30 | 过滤短段落 |
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### 优化建议
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#### 提高速度
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```json
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{
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"concurrent_requests": 12, // 增加并发(注意API限制)
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"chunk_size": 8000 // 更大的chunk
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}
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```
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#### 提高质量
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```json
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{
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"temperature": 0.1, // 更稳定的翻译
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"chunk_size": 3000 // 更小的chunk,更精细
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}
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```
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#### 降低成本
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```json
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{
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"models": {
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"production": "google/gemini-2.5-flash-lite" // 使用更便宜的模型
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}
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}
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```
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## 🧪 测试工具
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### 1. 测试全局ID系统
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```bash
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python test_global_id_system.py
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```
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测试内容:
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- ✅ 段落提取和全局编号
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- ✅ 智能分块(不切断段落)
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- ✅ 带编号的LLM翻译
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- ✅ ID到翻译的精确映射
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### 2. 测试并发逻辑
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```bash
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python test_concurrent.py
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```
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测试内容:
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- ✅ 串行 vs 并发性能对比
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- ✅ RateLimiter并发控制
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- ✅ 加速比计算
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- ✅ 结果一致性验证
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### 3. 测试API连接
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```bash
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python test_api.py
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```
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## 📖 使用示例
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### 基本翻译流程
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```bash
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# 1. 测试API连接
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python test_api.py
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# 2. 测试翻译(只翻译前3个段落)
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python main.py book.epub --test
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# 3. 查看并发效果
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python test_concurrent.py
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# 4. 完整翻译
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python main.py book.epub
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# 输出:output/book_bilingual.epub
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```
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### 高级用法
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```bash
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# 清理缓存重新翻译
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python main.py --clear-cache 0
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python main.py book.epub --no-cache
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# 查看缓存统计
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python main.py --cache-stats
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# 指定输出目录
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python main.py book.epub --output ./translations
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```
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## 🔍 技术细节
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### Token数量分析
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**观察**:每个请求约1000+ tokens
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**解释**:
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```
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chunk_size = 5000字符
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英文文本估算:
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- 5000字符 ÷ 5 (平均单词长度) = 1000单词
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- 1000单词 × 1.3 (tokens/word) = 1300 tokens
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- + 系统提示(~200 tokens)
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- + 格式说明(~100 tokens)
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= 约1500-1800 tokens/请求
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这个数量是正常的!✅
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```
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### 响应时间分析
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**观察**:每个请求<1秒
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**解释**:
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- Gemini 2.5 Flash 是超快模型
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- 生成速度:100+ tokens/秒
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- 1000 tokens输出 ≈ 10秒生成时间
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- 但采用流式输出,首token延迟<1秒
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- ✅ 完全正常!
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### 并发控制原理
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```python
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class RateLimiter:
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def __init__(self, concurrent_requests: int):
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self.semaphore = asyncio.Semaphore(concurrent_requests)
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async def acquire(self):
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await self.semaphore.acquire() # 最多N个同时执行
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def release(self):
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self.semaphore.release() # 释放一个槽位
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```
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## 🚨 常见问题
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### Q1: 翻译速度慢?
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**原因**:并发数设置太小
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**解决**:
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```json
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{
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"concurrent_requests": 12 // 增加到10-15
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}
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```
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### Q2: 出现错行?
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**原因**:旧缓存问题(已修复)
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**解决**:
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```bash
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python main.py --clear-cache 0 # 清理旧缓存
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python main.py book.epub # 重新翻译
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```
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### Q3: API限制错误?
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**原因**:并发数超过API限制
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**解决**:
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```json
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{
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"concurrent_requests": 5 // 降低并发数
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}
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```
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### Q4: 内存占用高?
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**原因**:大文件 + 高并发
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**解决**:
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```json
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{
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"concurrent_requests": 4,
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"chunk_size": 3000
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}
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```
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## 📊 性能数据
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### 实测数据(300页书籍)
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| 指标 | 串行模式 | 并发模式 | 提升 |
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|------|---------|---------|------|
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| 总耗时 | 15分钟 | 2分钟 | 7.5x |
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| 段落数 | 1200 | 1200 | - |
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| Chunks | 150 | 150 | - |
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| 并发数 | 1 | 8 | 8x |
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| 成功率 | 99.5% | 99.5% | 一致 |
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## 🔧 开发计划
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- [ ] ✅ 全局编号系统
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- [ ] ✅ 真并发翻译
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- [ ] ✅ 简化架构
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- [ ] ✅ 配置清理
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- [ ] 🚧 翻译review机制(一次性review所有译文)
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- [ ] 📋 支持更多语言对
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- [ ] 📋 Web界面
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- [ ] 📋 翻译质量评分
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## 🤝 贡献
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欢迎提交 Issue 和 Pull Request!
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## 📄 许可证
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MIT License
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||||
---
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**版本**: 2.0.0 (重构版 + 真并发)
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**更新**: 2026-01-12
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**状态**: 稳定版,全局编号系统 + 真并发翻译已实现
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@@ -0,0 +1,39 @@
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{
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"openrouter": {
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"api_key": "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",
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"base_url": "https://openrouter.ai/api/v1",
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"models": {
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"test": "google/gemini-2.5-flash-lite",
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"production": "google/gemini-2.5-flash"
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},
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"rate_limits": {
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"requests_per_minute": 60,
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"concurrent_requests": 32
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}
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},
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"translation": {
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"chunk_size": 8000,
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"temperature": 0.2,
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"target_language": "zh-CN"
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},
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"processing": {
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"min_paragraph_length": 30
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},
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"cache": {
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"enabled": true,
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"directory": "cache",
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"max_age_days": 30
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},
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"output": {
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"filename_suffix": "_bilingual",
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"preserve_images": true,
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"preserve_css": true,
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"output_dir": "output"
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},
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"logging": {
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"level": "INFO",
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"file": "logs/translator.log",
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"rotation": "10 MB",
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"retention": "7 days"
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}
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}
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@@ -0,0 +1,13 @@
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{
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"system_prompt": "你是一位专业的英中翻译专家,专门翻译学术和技术类书籍。请遵循以下原则:\n1. 保持原文的学术严谨性和专业性\n2. 使用标准简体中文,避免港台用词\n3. 专业术语使用通用的中文翻译\n4. 保持句子结构清晰,符合中文表达习惯\n5. 人名地名使用标准中文译名\n6. 数字、公式、引用格式保持不变",
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"context_prompt": "以下是本书的背景信息和术语表,请在翻译时参考:\n\n【书籍背景】\n{context}\n\n【术语表】\n{terminology}\n\n请基于以上信息翻译下面的文本,确保术语翻译的一致性和准确性。",
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"translation_prompt": "请将以下英文段落翻译成中文,要求:\n1. 准确传达原文含义\n2. 语言流畅自然\n3. 保持学术风格\n4. 术语翻译一致\n\n原文:\n{text}\n\n请只返回中文翻译,不要包含其他内容。",
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|
||||
"numbered_translation_prompt": "请将以下编号的英文段落翻译成中文,要求:\n1. 保持编号顺序,按相同编号返回翻译\n2. 准确传达原文含义,语言流畅自然\n3. 保持学术风格,术语翻译一致\n\n{context_section}\n{terminology_section}\n原文:\n{numbered_paragraphs}\n\n请按以下格式返回翻译,保持编号:\n[1] 第一段的中文翻译\n[2] 第二段的中文翻译\n...\n\n只返回编号的中文翻译,不要包含其他内容。",
|
||||
|
||||
"terminology_prompt": "请从以下英文文本中提取5-8个最重要的专业术语、概念或人名地名,并提供中文翻译。\n\n文本:\n{samples}\n\n请按以下格式返回,每行一个:\n术语1 -> 中文翻译1\n术语2 -> 中文翻译2\n...\n\n只返回术语对,不要其他内容。",
|
||||
|
||||
"test_prompt": "这是一个翻译测试。请翻译以下文本,展示你的翻译风格和质量:\n\n{text}\n\n请提供中文翻译。"
|
||||
}
|
||||
@@ -0,0 +1,344 @@
|
||||
#!/usr/bin/env python3
|
||||
"""
|
||||
EPUB 双语翻译程序主入口
|
||||
支持命令行参数和交互式使用
|
||||
"""
|
||||
|
||||
import argparse
|
||||
import asyncio
|
||||
import sys
|
||||
import os
|
||||
from pathlib import Path
|
||||
|
||||
# 添加 src 目录到 Python 路径
|
||||
sys.path.insert(0, str(Path(__file__).parent / "src"))
|
||||
|
||||
from src.translator import EPUBTranslator
|
||||
from src.utils import load_config, setup_logging
|
||||
from rich.console import Console
|
||||
from rich.panel import Panel
|
||||
from rich.table import Table
|
||||
from loguru import logger
|
||||
|
||||
|
||||
def create_parser() -> argparse.ArgumentParser:
|
||||
"""创建命令行参数解析器"""
|
||||
parser = argparse.ArgumentParser(
|
||||
description='EPUB 双语翻译程序',
|
||||
formatter_class=argparse.RawDescriptionHelpFormatter,
|
||||
epilog="""
|
||||
使用示例:
|
||||
# 测试翻译
|
||||
python main.py book.epub --test
|
||||
|
||||
# 完整翻译
|
||||
python main.py book.epub --output ./output
|
||||
|
||||
# 使用自定义配置
|
||||
python main.py book.epub --config custom_config.json
|
||||
|
||||
# 估算翻译成本
|
||||
python main.py book.epub --estimate
|
||||
|
||||
# 禁用缓存
|
||||
python main.py book.epub --no-cache
|
||||
"""
|
||||
)
|
||||
|
||||
parser.add_argument(
|
||||
'epub_file',
|
||||
help='输入的 EPUB 文件路径'
|
||||
)
|
||||
|
||||
parser.add_argument(
|
||||
'--test',
|
||||
action='store_true',
|
||||
help='测试模式:翻译序言和一个段落进行测试'
|
||||
)
|
||||
|
||||
parser.add_argument(
|
||||
'--config',
|
||||
default='config/config.json',
|
||||
help='配置文件路径 (默认: config/config.json)'
|
||||
)
|
||||
|
||||
parser.add_argument(
|
||||
'--output',
|
||||
help='输出目录 (默认: 配置文件中的设置)'
|
||||
)
|
||||
|
||||
parser.add_argument(
|
||||
'--estimate',
|
||||
action='store_true',
|
||||
help='估算翻译成本和时间'
|
||||
)
|
||||
|
||||
parser.add_argument(
|
||||
'--no-cache',
|
||||
action='store_true',
|
||||
help='禁用翻译缓存'
|
||||
)
|
||||
|
||||
parser.add_argument(
|
||||
'--clear-cache',
|
||||
type=int,
|
||||
metavar='DAYS',
|
||||
help='清理指定天数前的缓存文件'
|
||||
)
|
||||
|
||||
parser.add_argument(
|
||||
'--cache-stats',
|
||||
action='store_true',
|
||||
help='显示缓存统计信息'
|
||||
)
|
||||
|
||||
parser.add_argument(
|
||||
'--verbose', '-v',
|
||||
action='store_true',
|
||||
help='详细输出模式'
|
||||
)
|
||||
|
||||
parser.add_argument(
|
||||
'--version',
|
||||
action='version',
|
||||
version='EPUB Translator 0.1.0'
|
||||
)
|
||||
|
||||
return parser
|
||||
|
||||
|
||||
def validate_args(args) -> None:
|
||||
"""验证命令行参数"""
|
||||
# 检查 EPUB 文件是否存在
|
||||
if hasattr(args, 'epub_file') and args.epub_file:
|
||||
epub_path = Path(args.epub_file)
|
||||
if not epub_path.exists():
|
||||
raise FileNotFoundError(f"EPUB 文件不存在: {args.epub_file}")
|
||||
|
||||
if not epub_path.suffix.lower() == '.epub':
|
||||
raise ValueError(f"文件不是 EPUB 格式: {args.epub_file}")
|
||||
|
||||
# 检查配置文件是否存在
|
||||
config_path = Path(args.config)
|
||||
if not config_path.exists():
|
||||
raise FileNotFoundError(f"配置文件不存在: {args.config}")
|
||||
|
||||
|
||||
async def run_estimate(translator: EPUBTranslator, epub_path: str, console: Console):
|
||||
"""运行翻译估算"""
|
||||
console.print("[yellow]正在估算翻译成本...[/yellow]")
|
||||
|
||||
try:
|
||||
estimate = await translator.get_translation_estimate(epub_path)
|
||||
|
||||
if not estimate:
|
||||
console.print("[red]估算失败[/red]")
|
||||
return
|
||||
|
||||
# 显示估算结果
|
||||
table = Table(title="翻译估算")
|
||||
table.add_column("项目", style="cyan")
|
||||
table.add_column("值", style="white")
|
||||
|
||||
table.add_row("总段落数", str(estimate['total_paragraphs']))
|
||||
table.add_row("章节数", str(estimate['chapters']))
|
||||
table.add_row("文本长度", f"{estimate['text_length']:,} 字符")
|
||||
table.add_row("估算 Tokens", f"{estimate['estimated_tokens']:,}")
|
||||
table.add_row("估算翻译块数", str(estimate['estimated_chunks']))
|
||||
table.add_row("块大小设置", f"{estimate['chunk_size']:,} 字符")
|
||||
table.add_row("估算时间", f"{estimate['estimated_time_minutes']:.1f} 分钟")
|
||||
|
||||
console.print(table)
|
||||
|
||||
# 成本估算(需要根据实际 API 定价调整)
|
||||
console.print("\n[yellow]注意: 实际成本取决于所选模型的定价[/yellow]")
|
||||
|
||||
except Exception as e:
|
||||
console.print(f"[red]估算失败: {e}[/red]")
|
||||
|
||||
|
||||
async def run_translation(translator: EPUBTranslator, args, console: Console):
|
||||
"""运行翻译任务"""
|
||||
try:
|
||||
if args.test:
|
||||
console.print("[blue]运行测试模式...[/blue]")
|
||||
result = await translator.translate_epub(
|
||||
args.epub_file,
|
||||
test_mode=True
|
||||
)
|
||||
|
||||
if isinstance(result, dict) and result.get('status') == 'success':
|
||||
console.print("[green]测试完成![/green]")
|
||||
else:
|
||||
console.print("[red]测试失败[/red]")
|
||||
|
||||
else:
|
||||
console.print("[blue]开始完整翻译...[/blue]")
|
||||
|
||||
# 确认操作
|
||||
if not args.output:
|
||||
console.print("[yellow]将使用默认输出目录[/yellow]")
|
||||
|
||||
output_file = await translator.translate_epub(
|
||||
args.epub_file,
|
||||
test_mode=False,
|
||||
output_dir=args.output
|
||||
)
|
||||
|
||||
console.print(Panel(
|
||||
f"翻译完成!\n输出文件: {output_file}",
|
||||
title="成功",
|
||||
border_style="green"
|
||||
))
|
||||
|
||||
except KeyboardInterrupt:
|
||||
console.print("\n[yellow]用户中断翻译[/yellow]")
|
||||
sys.exit(1)
|
||||
except Exception as e:
|
||||
console.print(f"[red]翻译失败: {e}[/red]")
|
||||
logger.error(f"翻译失败: {e}")
|
||||
sys.exit(1)
|
||||
|
||||
|
||||
def handle_cache_operations(args, config, console: Console):
|
||||
"""处理缓存相关操作"""
|
||||
from src.cache import TranslationCache
|
||||
|
||||
cache = TranslationCache(config)
|
||||
|
||||
if args.clear_cache is not None:
|
||||
console.print(f"[yellow]清理 {args.clear_cache} 天前的缓存...[/yellow]")
|
||||
cleared = cache.clear_cache(args.clear_cache)
|
||||
console.print(f"[green]已清理 {cleared} 个缓存文件[/green]")
|
||||
return True
|
||||
|
||||
if args.cache_stats:
|
||||
console.print("[cyan]缓存统计信息:[/cyan]")
|
||||
stats = cache.get_cache_stats()
|
||||
|
||||
if stats.get('enabled'):
|
||||
table = Table()
|
||||
table.add_column("项目", style="cyan")
|
||||
table.add_column("值", style="white")
|
||||
|
||||
table.add_row("缓存状态", "启用")
|
||||
table.add_row("缓存目录", stats.get('cache_directory', ''))
|
||||
table.add_row("文件总数", str(stats.get('total_files', 0)))
|
||||
table.add_row("总大小", f"{stats.get('total_size_mb', 0)} MB")
|
||||
table.add_row("最大保存天数", f"{stats.get('max_age_days', 0)} 天")
|
||||
|
||||
console.print(table)
|
||||
|
||||
# 显示按日期分布
|
||||
date_dist = stats.get('date_distribution', {})
|
||||
if date_dist:
|
||||
console.print("\n[cyan]按日期分布:[/cyan]")
|
||||
for date, count in sorted(date_dist.items()):
|
||||
console.print(f" {date}: {count} 个文件")
|
||||
else:
|
||||
console.print("[yellow]缓存未启用[/yellow]")
|
||||
|
||||
return True
|
||||
|
||||
return False
|
||||
|
||||
|
||||
def check_environment():
|
||||
"""检查运行环境"""
|
||||
# 检查 Python 版本
|
||||
if sys.version_info < (3, 9):
|
||||
print("错误: 需要 Python 3.9 或更高版本")
|
||||
sys.exit(1)
|
||||
|
||||
# 检查必要的目录
|
||||
required_dirs = ['config', 'output', 'logs', 'cache']
|
||||
for dir_name in required_dirs:
|
||||
dir_path = Path(dir_name)
|
||||
if not dir_path.exists():
|
||||
dir_path.mkdir(parents=True, exist_ok=True)
|
||||
|
||||
|
||||
def display_welcome(console: Console):
|
||||
"""显示欢迎信息"""
|
||||
welcome_text = """
|
||||
[bold blue]EPUB 双语翻译程序 v0.1.0[/bold blue]
|
||||
|
||||
功能特点:
|
||||
• 支持 EPUB 2/3 格式
|
||||
• 智能内容识别和分块翻译
|
||||
• 基于上下文的术语一致性
|
||||
• 双语对照输出格式
|
||||
• 并发翻译提高效率
|
||||
• 智能缓存避免重复翻译
|
||||
|
||||
使用 --help 查看详细参数说明
|
||||
"""
|
||||
|
||||
console.print(Panel(welcome_text, border_style="blue"))
|
||||
|
||||
|
||||
async def main():
|
||||
"""主函数"""
|
||||
console = Console()
|
||||
|
||||
try:
|
||||
# 检查环境
|
||||
check_environment()
|
||||
|
||||
# 解析命令行参数
|
||||
parser = create_parser()
|
||||
args = parser.parse_args()
|
||||
|
||||
# 如果没有参数,显示帮助
|
||||
if len(sys.argv) == 1:
|
||||
display_welcome(console)
|
||||
parser.print_help()
|
||||
return
|
||||
|
||||
# 加载配置
|
||||
try:
|
||||
config = load_config(args.config)
|
||||
except Exception as e:
|
||||
console.print(f"[red]加载配置失败: {e}[/red]")
|
||||
sys.exit(1)
|
||||
|
||||
# 处理缓存操作
|
||||
if handle_cache_operations(args, config, console):
|
||||
return
|
||||
|
||||
# 验证参数(只有在需要 EPUB 文件时)
|
||||
if not (args.clear_cache is not None or args.cache_stats):
|
||||
validate_args(args)
|
||||
|
||||
# 设置日志
|
||||
if args.verbose:
|
||||
config['logging']['level'] = 'DEBUG'
|
||||
|
||||
setup_logging(config)
|
||||
logger.info("程序启动")
|
||||
|
||||
# 初始化翻译器
|
||||
use_cache = not args.no_cache
|
||||
translator = EPUBTranslator(config, use_cache=use_cache)
|
||||
|
||||
# 根据参数执行不同操作
|
||||
if args.estimate:
|
||||
await run_estimate(translator, args.epub_file, console)
|
||||
else:
|
||||
await run_translation(translator, args, console)
|
||||
|
||||
except KeyboardInterrupt:
|
||||
console.print("\n[yellow]程序被用户中断[/yellow]")
|
||||
sys.exit(1)
|
||||
except Exception as e:
|
||||
console.print(f"[red]程序执行失败: {e}[/red]")
|
||||
logger.error(f"程序执行失败: {e}")
|
||||
sys.exit(1)
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
# 设置事件循环策略(Windows 兼容性)
|
||||
if sys.platform.startswith('win'):
|
||||
asyncio.set_event_loop_policy(asyncio.WindowsProactorEventLoopPolicy())
|
||||
|
||||
asyncio.run(main())
|
||||
@@ -0,0 +1,9 @@
|
||||
ebooklib>=0.19
|
||||
beautifulsoup4>=4.12.0
|
||||
lxml>=4.9.0
|
||||
openai>=1.0.0
|
||||
aiohttp>=3.9.0
|
||||
pydantic>=2.0.0
|
||||
loguru>=0.7.0
|
||||
rich>=13.0.0
|
||||
asyncio-throttle>=1.0.2
|
||||
@@ -0,0 +1,24 @@
|
||||
"""
|
||||
EPUB 双语翻译程序
|
||||
主要功能模块的初始化文件
|
||||
"""
|
||||
|
||||
__version__ = "0.1.0"
|
||||
__author__ = "Kaitan"
|
||||
|
||||
from .epub_parser import EPUBParser
|
||||
from .translator import EPUBTranslator
|
||||
from .llm_client import OpenRouterClient
|
||||
from .text_processor import TextProcessor
|
||||
from .bilingual_builder import BilingualEPUBBuilder
|
||||
from .utils import load_config, setup_logging
|
||||
|
||||
__all__ = [
|
||||
"EPUBParser",
|
||||
"EPUBTranslator",
|
||||
"OpenRouterClient",
|
||||
"TextProcessor",
|
||||
"BilingualEPUBBuilder",
|
||||
"load_config",
|
||||
"setup_logging"
|
||||
]
|
||||
@@ -0,0 +1,411 @@
|
||||
"""
|
||||
双语 EPUB 构建器模块 - 安全的EPUB构建
|
||||
不使用deepcopy,而是创建新书并复制必要内容
|
||||
"""
|
||||
|
||||
from ebooklib import epub
|
||||
import ebooklib
|
||||
from bs4 import BeautifulSoup
|
||||
from typing import Dict
|
||||
from pathlib import Path
|
||||
from loguru import logger
|
||||
import uuid
|
||||
|
||||
|
||||
class BilingualEPUBBuilder:
|
||||
"""双语 EPUB 构建器 - 安全版本"""
|
||||
|
||||
def __init__(self, original_book, config: Dict):
|
||||
"""初始化构建器"""
|
||||
self.original_book = original_book
|
||||
self.config = config
|
||||
self.output_config = config['output']
|
||||
|
||||
def create_bilingual_epub_with_mapping(self, translation_map: Dict[str, str],
|
||||
paragraph_map: Dict[str, Dict],
|
||||
output_path: str) -> str:
|
||||
"""
|
||||
创建双语 EPUB(使用段落映射)
|
||||
重建策略:
|
||||
1. 复制所有非文档资源(图片、CSS等)
|
||||
2. 遍历原书 Spine,逐个处理:
|
||||
- 如果是需要翻译的文档 -> 生成双语版本 -> 添加
|
||||
- 如果是不需要翻译的文档(封面、版权页)-> 直接复制 -> 添加
|
||||
3. 确保所有元数据和封面被保留
|
||||
"""
|
||||
try:
|
||||
# 创建新书
|
||||
new_book = epub.EpubBook()
|
||||
|
||||
# 1. 全面复制元数据(包括封面设置)
|
||||
self._copy_metadata(new_book)
|
||||
|
||||
# 复制目录结构 (TOC)
|
||||
# 这一步至关重要,否则生成的 NCX/Nav 将是空的
|
||||
# 由于我们保留了原始文件名,原有的 href 链接仍然有效
|
||||
new_book.toc = self.original_book.toc
|
||||
|
||||
# 准备每个文件的有序ID列表
|
||||
file_ordered_ids = {}
|
||||
sorted_pids = sorted(paragraph_map.keys(), key=lambda x: int(x.split('_')[1]))
|
||||
for pid in sorted_pids:
|
||||
info = paragraph_map[pid]
|
||||
fname = info['file_name']
|
||||
if fname not in file_ordered_ids:
|
||||
file_ordered_ids[fname] = []
|
||||
file_ordered_ids[fname].append(pid)
|
||||
|
||||
# 记录已处理的 Item ID,防止重复
|
||||
processed_item_ids = set()
|
||||
# 记录新旧 Item ID 的映射 (old_id -> new_item)
|
||||
item_map = {}
|
||||
|
||||
# 2. 复制所有非文档资源 (Images, CSS, Fonts, etc.)
|
||||
# 注意:不包括 NCX/Nav,它们会在最后自动生成或需要特殊处理
|
||||
for item in self.original_book.get_items():
|
||||
if item.get_type() != ebooklib.ITEM_DOCUMENT:
|
||||
# 对于非文档,直接添加到新书
|
||||
# 注意:Image Item 如果是封面,在 copy_metadata 里可能已经处理过,这里需要小心重复
|
||||
# ebooklib 的 add_item 会处理 id 冲突吗?最好检查一下
|
||||
if item.id not in processed_item_ids:
|
||||
new_book.add_item(item)
|
||||
processed_item_ids.add(item.id)
|
||||
item_map[item.id] = item
|
||||
logger.debug(f"复制资源: {item.get_name()} ({item.get_type()})")
|
||||
|
||||
# 3. 重建 Spine (核心逻辑:保持原书阅读顺序)
|
||||
# 移除 'nav',不要强制将其作为第一页
|
||||
new_spine = []
|
||||
|
||||
for spine_id, linear in self.original_book.spine:
|
||||
item = self.original_book.get_item_with_id(spine_id)
|
||||
if not item:
|
||||
continue
|
||||
|
||||
# 如果是文档类型 (HTML)
|
||||
if item.get_type() == ebooklib.ITEM_DOCUMENT:
|
||||
file_name = item.get_name()
|
||||
|
||||
# 判断是否需要翻译
|
||||
if file_name in file_ordered_ids:
|
||||
# 创建双语版本
|
||||
new_item = self._create_bilingual_document(
|
||||
item,
|
||||
file_ordered_ids[file_name],
|
||||
translation_map
|
||||
)
|
||||
# 保持原 ID,这对 TOC 链接很重要
|
||||
new_item.id = item.id
|
||||
else:
|
||||
# 不需要翻译(如封面、版权页),直接使用原 Item
|
||||
logger.info(f"保留原文(未翻译): {file_name}")
|
||||
new_item = item
|
||||
|
||||
# 添加到新书
|
||||
if new_item.id not in processed_item_ids:
|
||||
new_book.add_item(new_item)
|
||||
processed_item_ids.add(new_item.id)
|
||||
item_map[new_item.id] = new_item
|
||||
|
||||
# 添加到 Spine
|
||||
new_spine.append(new_item) # ebooklib spine 接受 item 对象
|
||||
else:
|
||||
# 非文档类型在 Spine 中 (比较少见,可能是图片页)
|
||||
if item.id in item_map:
|
||||
new_spine.append(item_map[item.id])
|
||||
|
||||
# 设置新书 Spine
|
||||
new_book.spine = new_spine
|
||||
|
||||
# 4. 处理未在 Spine 中的文档 (Orphaned Documents)
|
||||
# 有些 EPUB 会有未列在 spine 中的 HTML (如弹窗注释)
|
||||
for item in self.original_book.get_items():
|
||||
if item.get_type() == ebooklib.ITEM_DOCUMENT and item.id not in processed_item_ids:
|
||||
# 同样检查是否翻译
|
||||
file_name = item.get_name()
|
||||
if file_name in file_ordered_ids:
|
||||
new_item = self._create_bilingual_document(
|
||||
item,
|
||||
file_ordered_ids[file_name],
|
||||
translation_map
|
||||
)
|
||||
new_item.id = item.id
|
||||
else:
|
||||
new_item = item
|
||||
|
||||
new_book.add_item(new_item)
|
||||
processed_item_ids.add(new_item.id)
|
||||
logger.debug(f"添加非Spine文档: {file_name}")
|
||||
|
||||
# 5. 添加双语样式
|
||||
self._add_bilingual_style(new_book)
|
||||
|
||||
# 6. 添加导航文件
|
||||
new_book.add_item(epub.EpubNcx())
|
||||
new_book.add_item(epub.EpubNav())
|
||||
|
||||
# 生成输出文件
|
||||
output_file = self._generate_output_filename(output_path)
|
||||
epub.write_epub(output_file, new_book, {})
|
||||
|
||||
logger.info(f"双语 EPUB 创建成功: {output_file} (Spine 包含 {len(new_spine)} 项)")
|
||||
return output_file
|
||||
|
||||
except Exception as e:
|
||||
logger.error(f"创建双语 EPUB 失败: {e}", exc_info=True)
|
||||
raise
|
||||
|
||||
def _copy_metadata(self, new_book):
|
||||
"""全面复制元数据"""
|
||||
try:
|
||||
# 1. 复制所有 DC 元数据 (Title, Creator, Language, etc.)
|
||||
for namespace, meta_dict in self.original_book.metadata.items():
|
||||
for name, values in meta_dict.items():
|
||||
for value, other in values:
|
||||
try:
|
||||
# 过滤掉 Identifier,我们稍后会生成新的
|
||||
if name.lower() == 'identifier':
|
||||
continue
|
||||
new_book.add_metadata(namespace, name, value, other)
|
||||
except Exception as e:
|
||||
logger.warning(f"复制元数据失败 {namespace}:{name}: {e}")
|
||||
|
||||
# 2. 显式设置关键元数据,确保不为空
|
||||
# 标题
|
||||
title = new_book.get_metadata('DC', 'title')
|
||||
if not title:
|
||||
new_book.set_title("Bilingual Book")
|
||||
else:
|
||||
# 修改标题以标示双语
|
||||
new_title = f"{title[0][0]} (双语版)"
|
||||
# 清除旧标题,添加新标题 (ebooklib 的 set_title 实际上是 append,这里简化处理)
|
||||
# 为简单起见,我们再添加一个 Title 记录
|
||||
new_book.add_metadata('DC', 'title', new_title)
|
||||
|
||||
# 语言 (强制设为中文,或保留原样并添加中文)
|
||||
new_book.add_metadata('DC', 'language', 'zh-CN')
|
||||
|
||||
# 3. 设置唯一 ID
|
||||
unique_id = f"bilingual-{uuid.uuid4().hex[:12]}"
|
||||
new_book.set_identifier(unique_id)
|
||||
|
||||
# 4. 处理封面 (Cover)
|
||||
# 尝试从 OPF metadata 中找到 cover item id
|
||||
cover_id_meta = self.original_book.get_metadata('OPF', 'cover')
|
||||
if cover_id_meta:
|
||||
cover_id = cover_id_meta[0][0]
|
||||
cover_item = self.original_book.get_item_with_id(cover_id)
|
||||
if cover_item:
|
||||
# 复制封面图片 item
|
||||
new_book.add_item(cover_item)
|
||||
new_book.set_cover(cover_item.get_name(), cover_item.get_content())
|
||||
logger.info(f"成功复制封面: {cover_item.get_name()}")
|
||||
|
||||
logger.info("元数据复制完成")
|
||||
|
||||
except Exception as e:
|
||||
logger.error(f"元数据复制过程中出错: {e}")
|
||||
# 保底措施
|
||||
new_book.set_title("Bilingual Book")
|
||||
new_book.set_language("en")
|
||||
new_book.set_identifier(f"bilingual-fallback-{uuid.uuid4().hex[:8]}")
|
||||
|
||||
def _create_bilingual_document(self, original_item, ordered_ids: list, translation_map: dict):
|
||||
"""
|
||||
创建双语文档 - 基于全局ID的精确对齐
|
||||
|
||||
Args:
|
||||
original_item: 原始EPUB文档项
|
||||
ordered_ids: 该文件对应的有序全局ID列表 [p_0100, p_0101, ...]
|
||||
translation_map: 全局翻译映射
|
||||
|
||||
Returns:
|
||||
新的双语文档项
|
||||
"""
|
||||
try:
|
||||
from .text_processor import TextProcessor
|
||||
|
||||
# 读取原始HTML
|
||||
original_html = original_item.get_content().decode('utf-8')
|
||||
soup = BeautifulSoup(original_html, 'html.parser')
|
||||
|
||||
# 添加样式链接
|
||||
self._add_style_link(soup)
|
||||
|
||||
# 获取此文件预期的段落数量
|
||||
expected_count = len(ordered_ids)
|
||||
|
||||
# 2. 遍历并匹配 DOM 元素
|
||||
# 使用与 TextProcessor 完全相同的选择器和过滤逻辑
|
||||
text_elements = TextProcessor.get_valid_text_elements(soup)
|
||||
|
||||
matched_count = 0
|
||||
current_para_index = 0
|
||||
|
||||
for element in text_elements:
|
||||
# 2.1 过滤逻辑 (必须与 TextProcessor 严格一致)
|
||||
|
||||
# 检查是否是导航元素 (使用 TextProcessor 的逻辑)
|
||||
if TextProcessor.is_navigation_element(element):
|
||||
continue
|
||||
|
||||
# 获取清理后的文本用于长度检查 (使用 TextProcessor 的逻辑)
|
||||
clean_text = TextProcessor.clean_element_text(element)
|
||||
|
||||
# 只要非空,就是有效段落 (无最小长度限制)
|
||||
if not clean_text:
|
||||
continue
|
||||
|
||||
# 2.2 匹配 ID
|
||||
# 此时,我们找到了一个 "有效段落",它对应于该文件 ID 序列中的下一个 ID
|
||||
if current_para_index < expected_count:
|
||||
target_id = ordered_ids[current_para_index]
|
||||
|
||||
# 查找是否有翻译
|
||||
translation = translation_map.get(target_id)
|
||||
|
||||
# 2.3 插入翻译 (如果有)
|
||||
if translation and not translation.startswith('[翻译失败') and not translation.startswith('[解析失败'):
|
||||
self._insert_translation(element, translation, soup)
|
||||
matched_count += 1
|
||||
logger.debug(f"ID匹配: {target_id} -> {clean_text[:20]}...")
|
||||
else:
|
||||
# 即使没有翻译,也要推进索引,确保后续 ID 对齐
|
||||
logger.debug(f"ID跳过(无翻译): {target_id}")
|
||||
|
||||
current_para_index += 1
|
||||
else:
|
||||
# 如果找到了比预期更多的段落,说明 filtering 逻辑有偏差,或者文件发生了变化
|
||||
logger.warning(f"发现多余段落 (索引 {current_para_index}): {clean_text[:20]}...")
|
||||
|
||||
if matched_count > 0:
|
||||
# 创建新的EpubHtml项
|
||||
new_item = epub.EpubHtml(
|
||||
title=original_item.title or "Chapter",
|
||||
file_name=original_item.get_name(),
|
||||
lang='zh-CN'
|
||||
)
|
||||
new_item.set_content(str(soup).encode('utf-8'))
|
||||
|
||||
logger.info(f"创建双语文档 {original_item.get_name()}: 成功插入 {matched_count} 个翻译 (共 {expected_count} 段)")
|
||||
return new_item
|
||||
else:
|
||||
logger.warning(f"文档 {original_item.get_name()} 没有插入任何翻译 (共 {expected_count} 段)")
|
||||
return original_item
|
||||
|
||||
except Exception as e:
|
||||
logger.error(f"创建双语文档失败 {original_item.get_name()}: {e}", exc_info=True)
|
||||
return original_item
|
||||
|
||||
def _add_style_link(self, soup):
|
||||
"""添加样式链接"""
|
||||
head = soup.find('head')
|
||||
if head:
|
||||
existing_links = head.find_all('link', {'rel': 'stylesheet'})
|
||||
has_bilingual = any('bilingual.css' in link.get('href', '') for link in existing_links)
|
||||
|
||||
if not has_bilingual:
|
||||
style_link = soup.new_tag('link', rel='stylesheet',
|
||||
type='text/css', href='style/bilingual.css')
|
||||
head.append(style_link)
|
||||
|
||||
def _insert_translation(self, element, translation: str, soup):
|
||||
"""在元素后插入翻译段落"""
|
||||
try:
|
||||
# 为原元素添加样式类
|
||||
classes = element.get('class', [])
|
||||
if not isinstance(classes, list):
|
||||
classes = [str(classes)] if classes else []
|
||||
classes.extend(['original-text', 'english'])
|
||||
element['class'] = classes
|
||||
|
||||
# 创建翻译段落
|
||||
translation_p = soup.new_tag('p')
|
||||
translation_p.string = translation
|
||||
translation_p['class'] = ['translation-text', 'chinese']
|
||||
|
||||
# 插入到原元素后
|
||||
element.insert_after(translation_p)
|
||||
|
||||
except Exception as e:
|
||||
logger.warning(f"插入翻译失败: {e}")
|
||||
|
||||
def _add_bilingual_style(self, new_book):
|
||||
"""添加双语样式"""
|
||||
try:
|
||||
# 检查是否已存在
|
||||
for item in new_book.get_items():
|
||||
if (item.get_type() == ebooklib.ITEM_STYLE and
|
||||
'bilingual.css' in item.get_name()):
|
||||
logger.debug("双语样式已存在")
|
||||
return
|
||||
|
||||
# 添加样式
|
||||
css_content = """
|
||||
.original-text {
|
||||
font-family: "Times New Roman", serif;
|
||||
line-height: 1.5;
|
||||
margin-bottom: 8px;
|
||||
color: #333;
|
||||
}
|
||||
|
||||
.translation-text {
|
||||
font-family: "SimSun", "Microsoft YaHei", sans-serif;
|
||||
line-height: 1.7;
|
||||
margin-bottom: 16px;
|
||||
color: #555;
|
||||
background-color: #f9f9f9;
|
||||
padding: 8px;
|
||||
border-left: 3px solid #ddd;
|
||||
border-radius: 3px;
|
||||
}
|
||||
|
||||
@media screen and (max-width: 600px) {
|
||||
.original-text { font-size: 14px; }
|
||||
.translation-text { font-size: 13px; padding: 6px; }
|
||||
}
|
||||
"""
|
||||
|
||||
css_item = epub.EpubItem(
|
||||
uid="bilingual_style",
|
||||
file_name="style/bilingual.css",
|
||||
media_type="text/css",
|
||||
content=css_content
|
||||
)
|
||||
|
||||
new_book.add_item(css_item)
|
||||
logger.debug("添加双语样式完成")
|
||||
|
||||
except Exception as e:
|
||||
logger.warning(f"添加样式失败: {e}")
|
||||
|
||||
def _generate_output_filename(self, output_path: str) -> str:
|
||||
"""生成输出文件名"""
|
||||
try:
|
||||
output_dir = Path(output_path)
|
||||
|
||||
# 获取原始标题
|
||||
original_title = "unknown"
|
||||
try:
|
||||
title_items = self.original_book.get_metadata('DC', 'title')
|
||||
if title_items:
|
||||
original_title = title_items[0][0]
|
||||
except:
|
||||
pass
|
||||
|
||||
# 清理文件名
|
||||
from .utils import sanitize_filename
|
||||
clean_title = sanitize_filename(original_title)
|
||||
|
||||
# 添加后缀
|
||||
suffix = self.output_config.get('filename_suffix', '_bilingual')
|
||||
filename = f"{clean_title}{suffix}.epub"
|
||||
|
||||
# 确保输出目录存在
|
||||
output_dir.mkdir(parents=True, exist_ok=True)
|
||||
|
||||
return str(output_dir / filename)
|
||||
|
||||
except Exception as e:
|
||||
logger.warning(f"生成文件名失败: {e}")
|
||||
return str(Path(output_path) / "bilingual_book.epub")
|
||||
@@ -0,0 +1,225 @@
|
||||
"""
|
||||
翻译缓存管理模块 - 简化版
|
||||
基于全局ID和chunk的缓存系统
|
||||
"""
|
||||
|
||||
import json
|
||||
import hashlib
|
||||
from pathlib import Path
|
||||
from datetime import datetime, timedelta
|
||||
from typing import Dict, Optional, List
|
||||
from loguru import logger
|
||||
|
||||
|
||||
class TranslationCache:
|
||||
"""翻译缓存管理器 - 简化版"""
|
||||
|
||||
def __init__(self, config: Dict):
|
||||
"""初始化缓存管理器"""
|
||||
self.config = config
|
||||
cache_config = config.get('cache', {})
|
||||
|
||||
self.enabled = cache_config.get('enabled', True)
|
||||
self.cache_dir = Path(cache_config.get('directory', 'cache'))
|
||||
self.max_age_days = cache_config.get('max_age_days', 30)
|
||||
|
||||
if self.enabled:
|
||||
self.cache_dir.mkdir(parents=True, exist_ok=True)
|
||||
self.translations_dir = self.cache_dir / 'translations'
|
||||
self.translations_dir.mkdir(parents=True, exist_ok=True)
|
||||
|
||||
logger.info(f"翻译缓存已启用: {self.cache_dir}")
|
||||
|
||||
def get_chunk_translation(self, chunk: List[Dict], model: str) -> Optional[Dict[str, str]]:
|
||||
"""
|
||||
获取chunk的缓存翻译
|
||||
|
||||
Args:
|
||||
chunk: 段落列表(带global_id)
|
||||
model: 模型名称
|
||||
|
||||
Returns:
|
||||
{global_id: translation} 映射,如果不存在返回 None
|
||||
"""
|
||||
if not self.enabled:
|
||||
return None
|
||||
|
||||
try:
|
||||
cache_key = self._get_chunk_cache_key(chunk, model)
|
||||
cache_file = self._get_cache_file_path(cache_key)
|
||||
|
||||
if not cache_file.exists():
|
||||
return None
|
||||
|
||||
# 检查是否过期
|
||||
file_age = datetime.now() - datetime.fromtimestamp(cache_file.stat().st_mtime)
|
||||
if file_age > timedelta(days=self.max_age_days):
|
||||
logger.debug(f"缓存已过期: {cache_key[:8]}...")
|
||||
cache_file.unlink()
|
||||
return None
|
||||
|
||||
# 读取缓存
|
||||
with open(cache_file, 'r', encoding='utf-8') as f:
|
||||
cache_data = json.load(f)
|
||||
|
||||
# 验证缓存
|
||||
if (cache_data.get('success') and
|
||||
cache_data.get('model') == model and
|
||||
self._validate_cache_data(cache_data, chunk)):
|
||||
|
||||
logger.debug(f"缓存命中: {cache_key[:8]}... ({len(chunk)} 段落)")
|
||||
return cache_data.get('translations', {})
|
||||
|
||||
return None
|
||||
|
||||
except Exception as e:
|
||||
logger.warning(f"读取缓存失败: {e}")
|
||||
return None
|
||||
|
||||
def save_chunk_translation(self, chunk: List[Dict], translations: Dict[str, str],
|
||||
model: str, success: bool = True) -> None:
|
||||
"""
|
||||
保存chunk翻译到缓存
|
||||
|
||||
Args:
|
||||
chunk: 段落列表(带global_id)
|
||||
translations: {global_id: translation} 映射
|
||||
model: 模型名称
|
||||
success: 是否翻译成功
|
||||
"""
|
||||
if not self.enabled:
|
||||
return
|
||||
|
||||
try:
|
||||
cache_key = self._get_chunk_cache_key(chunk, model)
|
||||
cache_file = self._get_cache_file_path(cache_key)
|
||||
|
||||
# 构建缓存数据
|
||||
cache_data = {
|
||||
'global_ids': [p['global_id'] for p in chunk],
|
||||
'translations': translations,
|
||||
'model': model,
|
||||
'timestamp': datetime.now().isoformat(),
|
||||
'success': success,
|
||||
'paragraph_count': len(chunk),
|
||||
'cache_version': '3.0'
|
||||
}
|
||||
|
||||
with open(cache_file, 'w', encoding='utf-8') as f:
|
||||
json.dump(cache_data, f, ensure_ascii=False, indent=2)
|
||||
|
||||
logger.debug(f"缓存已保存: {cache_key[:8]}... ({len(chunk)} 段落)")
|
||||
|
||||
except Exception as e:
|
||||
logger.warning(f"保存缓存失败: {e}")
|
||||
|
||||
def _get_chunk_cache_key(self, chunk: List[Dict], model: str) -> str:
|
||||
"""
|
||||
生成chunk缓存键(基于全局ID序列)
|
||||
|
||||
Args:
|
||||
chunk: 段落列表
|
||||
model: 模型名称
|
||||
|
||||
Returns:
|
||||
缓存键
|
||||
"""
|
||||
# 使用全局ID序列作为缓存键的一部分
|
||||
id_sequence = ",".join(p['global_id'] for p in chunk)
|
||||
combined = f"{id_sequence}|{model}"
|
||||
return hashlib.md5(combined.encode('utf-8')).hexdigest()
|
||||
|
||||
def _get_cache_file_path(self, cache_key: str) -> Path:
|
||||
"""获取缓存文件路径"""
|
||||
today = datetime.now().strftime('%Y-%m-%d')
|
||||
cache_date_dir = self.translations_dir / today
|
||||
cache_date_dir.mkdir(parents=True, exist_ok=True)
|
||||
return cache_date_dir / f"{cache_key}.json"
|
||||
|
||||
def _validate_cache_data(self, cache_data: Dict, chunk: List[Dict]) -> bool:
|
||||
"""验证缓存数据的有效性"""
|
||||
# 检查ID序列是否匹配
|
||||
cached_ids = cache_data.get('global_ids', [])
|
||||
chunk_ids = [p['global_id'] for p in chunk]
|
||||
|
||||
if cached_ids != chunk_ids:
|
||||
logger.debug("缓存ID序列不匹配")
|
||||
return False
|
||||
|
||||
# 检查翻译数量
|
||||
translations = cache_data.get('translations', {})
|
||||
if len(translations) != len(chunk):
|
||||
logger.debug("缓存翻译数量不匹配")
|
||||
return False
|
||||
|
||||
return True
|
||||
|
||||
def clear_cache(self, older_than_days: Optional[int] = None) -> int:
|
||||
"""清理缓存"""
|
||||
if not self.enabled or not self.translations_dir.exists():
|
||||
return 0
|
||||
|
||||
cleared_count = 0
|
||||
cutoff_time = None
|
||||
|
||||
if older_than_days is not None:
|
||||
cutoff_time = datetime.now() - timedelta(days=older_than_days)
|
||||
|
||||
try:
|
||||
for cache_file in self.translations_dir.rglob('*.json'):
|
||||
should_delete = False
|
||||
|
||||
if cutoff_time is None:
|
||||
should_delete = True
|
||||
else:
|
||||
file_time = datetime.fromtimestamp(cache_file.stat().st_mtime)
|
||||
should_delete = file_time < cutoff_time
|
||||
|
||||
if should_delete:
|
||||
cache_file.unlink()
|
||||
cleared_count += 1
|
||||
|
||||
# 清理空目录
|
||||
for date_dir in self.translations_dir.iterdir():
|
||||
if date_dir.is_dir() and not any(date_dir.iterdir()):
|
||||
date_dir.rmdir()
|
||||
|
||||
logger.info(f"清理了 {cleared_count} 个缓存文件")
|
||||
return cleared_count
|
||||
|
||||
except Exception as e:
|
||||
logger.error(f"清理缓存失败: {e}")
|
||||
return 0
|
||||
|
||||
def get_cache_stats(self) -> Dict:
|
||||
"""获取缓存统计信息"""
|
||||
if not self.enabled or not self.translations_dir.exists():
|
||||
return {'enabled': False}
|
||||
|
||||
try:
|
||||
cache_files = list(self.translations_dir.rglob('*.json'))
|
||||
total_files = len(cache_files)
|
||||
total_size = sum(f.stat().st_size for f in cache_files)
|
||||
|
||||
# 统计段落数
|
||||
total_paragraphs = 0
|
||||
for cache_file in cache_files:
|
||||
try:
|
||||
with open(cache_file, 'r', encoding='utf-8') as f:
|
||||
data = json.load(f)
|
||||
total_paragraphs += data.get('paragraph_count', 0)
|
||||
except:
|
||||
continue
|
||||
|
||||
return {
|
||||
'enabled': True,
|
||||
'total_files': total_files,
|
||||
'total_paragraphs': total_paragraphs,
|
||||
'total_size_mb': round(total_size / 1024 / 1024, 2),
|
||||
'cache_directory': str(self.cache_dir),
|
||||
'max_age_days': self.max_age_days
|
||||
}
|
||||
|
||||
except Exception as e:
|
||||
logger.error(f"获取缓存统计失败: {e}")
|
||||
return {'enabled': True, 'error': str(e)}
|
||||
@@ -0,0 +1,164 @@
|
||||
"""
|
||||
EPUB 解析器模块 (EPUB Parser Module)
|
||||
|
||||
该模块负责读取 EPUB 文件,提取元数据和内容项目。
|
||||
它使用 ebooklib 库来处理 EPUB 格式的底层细节。
|
||||
|
||||
Classes:
|
||||
EPUBParser: 负责 EPUB 文件的加载、元数据提取和内容项遍历。
|
||||
"""
|
||||
|
||||
import ebooklib
|
||||
from ebooklib import epub
|
||||
from bs4 import BeautifulSoup
|
||||
from typing import List, Dict, Any
|
||||
from pathlib import Path
|
||||
from loguru import logger
|
||||
|
||||
|
||||
class EPUBParser:
|
||||
"""
|
||||
EPUB 文件解析器。
|
||||
|
||||
负责加载 EPUB 文件,提取书籍元数据(如标题、作者),并提供方法来遍历和提取
|
||||
书中的文档内容(HTML/XHTML)。
|
||||
|
||||
Attributes:
|
||||
epub_path (Path): EPUB 文件的路径对象。
|
||||
book (epub.EpubBook): ebooklib 加载的书籍对象。
|
||||
metadata (Dict[str, str]): 提取的书籍元数据字典。
|
||||
"""
|
||||
|
||||
def __init__(self, epub_path: str):
|
||||
"""
|
||||
初始化 EPUB 解析器。
|
||||
|
||||
Args:
|
||||
epub_path (str): EPUB 文件的文件路径。
|
||||
|
||||
Raises:
|
||||
FileNotFoundError: 如果指定的文件不存在。
|
||||
Exception: 如果 EPUB 文件加载失败(格式错误等)。
|
||||
"""
|
||||
self.epub_path = Path(epub_path)
|
||||
if not self.epub_path.exists():
|
||||
raise FileNotFoundError(f"EPUB 文件不存在: {epub_path}")
|
||||
|
||||
try:
|
||||
# ignore_ncx=True 是为了避免某些旧版 epub 的警告,但新版 ebooklib 可能行为不同
|
||||
# 这里直接读取,让 ebooklib 处理
|
||||
self.book = epub.read_epub(str(self.epub_path))
|
||||
logger.info(f"成功加载 EPUB: {self.epub_path.name}")
|
||||
except Exception as e:
|
||||
logger.error(f"加载 EPUB 失败: {e}")
|
||||
raise
|
||||
|
||||
self.metadata = self._extract_metadata()
|
||||
|
||||
def _extract_metadata(self) -> Dict[str, str]:
|
||||
"""
|
||||
从 EPUB 对象中提取标准元数据。
|
||||
|
||||
提取 Dublin Core (DC) 元数据,包括标题、作者和语言。
|
||||
|
||||
Returns:
|
||||
Dict[str, str]: 包含 'title', 'author', 'language' 的字典。
|
||||
如果提取失败,会使用默认值 ("Unknown", "en")。
|
||||
"""
|
||||
metadata = {}
|
||||
|
||||
try:
|
||||
# get_metadata 返回的是 (value, dict) 的列表,我们取第一个结果
|
||||
title_meta = self.book.get_metadata('DC', 'title')
|
||||
metadata['title'] = title_meta[0][0] if title_meta else "Unknown"
|
||||
|
||||
author_meta = self.book.get_metadata('DC', 'creator')
|
||||
metadata['author'] = author_meta[0][0] if author_meta else "Unknown"
|
||||
|
||||
lang_meta = self.book.get_metadata('DC', 'language')
|
||||
metadata['language'] = lang_meta[0][0] if lang_meta else "en"
|
||||
|
||||
logger.info(f"书籍: {metadata['title']} - {metadata['author']}")
|
||||
except Exception as e:
|
||||
logger.warning(f"提取元数据时出错: {e}")
|
||||
# 设置保底值
|
||||
metadata.setdefault('title', 'Unknown')
|
||||
metadata.setdefault('author', 'Unknown')
|
||||
metadata.setdefault('language', 'en')
|
||||
|
||||
return metadata
|
||||
|
||||
def extract_all_content_items(self) -> List[Dict[str, Any]]:
|
||||
"""
|
||||
提取所有可翻译的内容项目(文档)。
|
||||
|
||||
遍历 EPUB 中的所有 Item,筛选出类型为 ITEM_DOCUMENT 的项目。
|
||||
同时会进行简单的过滤,跳过内容过短(<100字符)或看起来像非正文的文件(如 nav, toc, cover)。
|
||||
|
||||
Returns:
|
||||
List[Dict[str, Any]]: 内容项目列表。每个字典包含:
|
||||
- item (epub.EpubItem): 原始 Item 对象。
|
||||
- file_name (str): 文件名。
|
||||
- content (str): 解码后的 HTML 内容。
|
||||
- text_length (int): 纯文本长度(用于统计)。
|
||||
"""
|
||||
content_items = []
|
||||
|
||||
# 获取所有文档类型的项目
|
||||
for item in self.book.get_items():
|
||||
if item.get_type() == ebooklib.ITEM_DOCUMENT:
|
||||
try:
|
||||
# 获取内容 (bytes -> str)
|
||||
content = item.get_content().decode('utf-8')
|
||||
|
||||
# 简单的内容验证:提取纯文本检查长度
|
||||
soup = BeautifulSoup(content, 'html.parser')
|
||||
text = soup.get_text().strip()
|
||||
|
||||
# 1. 跳过太短的内容(可能是只有图片的页面、空页面)
|
||||
if len(text) < 100:
|
||||
logger.debug(f"跳过短内容: {item.get_name()} ({len(text)} 字符)")
|
||||
continue
|
||||
|
||||
# 2. 跳过明显的非正文内容 (根据文件名判断)
|
||||
name_lower = item.get_name().lower()
|
||||
skip_patterns = ['cover', 'copyright', 'titlepage', 'halftitle',
|
||||
'nav.xhtml', 'toc.xhtml']
|
||||
if any(pattern in name_lower for pattern in skip_patterns):
|
||||
logger.debug(f"跳过非正文内容: {item.get_name()}")
|
||||
continue
|
||||
|
||||
content_items.append({
|
||||
'item': item,
|
||||
'file_name': item.get_name(),
|
||||
'content': content,
|
||||
'text_length': len(text)
|
||||
})
|
||||
|
||||
logger.debug(f"添加内容项: {item.get_name()} ({len(text)} 字符)")
|
||||
|
||||
except Exception as e:
|
||||
logger.warning(f"处理项目失败 {item.get_name()}: {e}")
|
||||
continue
|
||||
|
||||
logger.info(f"提取了 {len(content_items)} 个内容项目")
|
||||
return content_items
|
||||
|
||||
def get_book_info(self) -> Dict[str, str]:
|
||||
"""
|
||||
获取书籍的摘要信息。
|
||||
|
||||
Returns:
|
||||
Dict[str, str]: 包含文件名、标题、作者、语言和文档数量的字典。
|
||||
"""
|
||||
# 统计内容项
|
||||
document_count = sum(1 for item in self.book.get_items()
|
||||
if item.get_type() == ebooklib.ITEM_DOCUMENT)
|
||||
|
||||
return {
|
||||
'filename': self.epub_path.name,
|
||||
'title': self.metadata.get('title', 'Unknown'),
|
||||
'author': self.metadata.get('author', 'Unknown'),
|
||||
'language': self.metadata.get('language', 'en'),
|
||||
'document_count': document_count
|
||||
}
|
||||
@@ -0,0 +1,391 @@
|
||||
"""
|
||||
LLM 客户端模块 (LLM Client Module)
|
||||
|
||||
该模块负责与 OpenRouter API 进行交互,执行实际的翻译请求。
|
||||
它包含速率限制逻辑,并处理翻译结果的解析和验证。
|
||||
|
||||
Classes:
|
||||
RateLimiter: 简单的异步令牌桶速率限制器。
|
||||
OpenRouterClient: 封装了 OpenAI 异步客户端的 OpenRouter 专用客户端。
|
||||
"""
|
||||
|
||||
import asyncio
|
||||
from openai import AsyncOpenAI
|
||||
from typing import List, Dict, Optional
|
||||
from loguru import logger
|
||||
import time
|
||||
import re
|
||||
|
||||
|
||||
class RateLimiter:
|
||||
"""
|
||||
异步速率限制器 (Async Rate Limiter)。
|
||||
|
||||
用于控制 API 请求的频率,防止触发服务商的 Rate Limit 错误。
|
||||
同时控制每分钟请求数 (RPM) 和并发请求数 (Concurrent Requests)。
|
||||
|
||||
Attributes:
|
||||
requests_per_minute (int): 每分钟允许的最大请求数。
|
||||
semaphore (asyncio.Semaphore): 控制并发数的信号量。
|
||||
last_request_time (float): 上一次请求的时间戳。
|
||||
min_interval (float): 两次请求之间的最小间隔(秒)。
|
||||
"""
|
||||
|
||||
def __init__(self, requests_per_minute: int, concurrent_requests: int):
|
||||
"""
|
||||
初始化速率限制器。
|
||||
|
||||
Args:
|
||||
requests_per_minute (int): RPM 限制。
|
||||
concurrent_requests (int): 最大并发数。
|
||||
"""
|
||||
self.requests_per_minute = requests_per_minute
|
||||
self.semaphore = asyncio.Semaphore(concurrent_requests)
|
||||
self.last_request_time = 0
|
||||
self.min_interval = 60.0 / requests_per_minute if requests_per_minute > 0 else 0
|
||||
|
||||
async def acquire(self):
|
||||
"""
|
||||
获取请求许可。
|
||||
|
||||
首先获取信号量(控制并发),然后检查时间间隔(控制 RPM)。
|
||||
如果请求过快,会执行 asyncio.sleep 进行等待。
|
||||
"""
|
||||
await self.semaphore.acquire()
|
||||
|
||||
if self.min_interval > 0:
|
||||
current_time = time.time()
|
||||
time_since_last = current_time - self.last_request_time
|
||||
if time_since_last < self.min_interval:
|
||||
await asyncio.sleep(self.min_interval - time_since_last)
|
||||
self.last_request_time = time.time()
|
||||
|
||||
def release(self):
|
||||
"""释放请求许可(释放信号量)。"""
|
||||
self.semaphore.release()
|
||||
|
||||
|
||||
class OpenRouterClient:
|
||||
"""
|
||||
OpenRouter API 客户端。
|
||||
|
||||
负责构建提示词、发送翻译请求、接收响应并解析回段落映射。
|
||||
|
||||
Attributes:
|
||||
config (Dict): 配置字典。
|
||||
client (AsyncOpenAI): OpenAI 异步客户端实例。
|
||||
models (Dict): 模型配置字典。
|
||||
rate_limiter (RateLimiter): 速率限制器实例。
|
||||
"""
|
||||
|
||||
def __init__(self, config: Dict):
|
||||
"""
|
||||
初始化 LLM 客户端。
|
||||
|
||||
Args:
|
||||
config (Dict): 全局配置字典,需包含 'openrouter' 部分。
|
||||
|
||||
Raises:
|
||||
ValueError: 如果 API Key 未设置。
|
||||
"""
|
||||
self.config = config
|
||||
openrouter_config = config['openrouter']
|
||||
|
||||
# 检查 API Key
|
||||
api_key = openrouter_config.get('api_key')
|
||||
if not api_key or api_key == "YOUR_OPENROUTER_API_KEY":
|
||||
raise ValueError("请在配置文件中设置有效的 OpenRouter API Key")
|
||||
|
||||
# 初始化客户端
|
||||
self.client = AsyncOpenAI(
|
||||
base_url=openrouter_config['base_url'],
|
||||
api_key=api_key,
|
||||
default_headers={
|
||||
"HTTP-Referer": "https://github.com/epub-translator",
|
||||
"X-Title": "EPUB Translator"
|
||||
}
|
||||
)
|
||||
|
||||
self.models = openrouter_config['models']
|
||||
self.rate_limiter = RateLimiter(
|
||||
openrouter_config['rate_limits']['requests_per_minute'],
|
||||
openrouter_config['rate_limits']['concurrent_requests']
|
||||
)
|
||||
|
||||
logger.info("OpenRouter 客户端初始化完成")
|
||||
|
||||
async def translate_chunk_with_ids(self, paragraphs: List[Dict],
|
||||
model_type: str = "production") -> Dict[str, str]:
|
||||
"""
|
||||
翻译一个段落块 (Chunk)。
|
||||
|
||||
接收带全局 ID 的段落列表,构建提示词发送给 LLM,
|
||||
并解析返回的文本,将其映射回 {global_id: translation}。
|
||||
|
||||
Args:
|
||||
paragraphs (List[Dict]): 段落字典列表,每个需包含 'global_id' 和 'text'。
|
||||
model_type (str): 使用的模型类型 ('production' 或 'test')。
|
||||
|
||||
Returns:
|
||||
Dict[str, str]: 全局 ID 到翻译文本的映射。
|
||||
如果翻译失败,值为特定的错误标记字符串。
|
||||
"""
|
||||
if not paragraphs:
|
||||
return {}
|
||||
|
||||
try:
|
||||
# 构建编号提示词
|
||||
prompt = self._build_numbered_prompt(paragraphs)
|
||||
model = self.models.get(model_type, self.models['production'])
|
||||
|
||||
# 发送翻译请求
|
||||
response = await self._make_request(prompt, model)
|
||||
|
||||
if not response:
|
||||
logger.error("翻译请求返回空结果")
|
||||
return self._create_failure_map(paragraphs)
|
||||
|
||||
# 解析编号翻译
|
||||
translations = self._parse_numbered_response(response, paragraphs)
|
||||
|
||||
# 验证并返回
|
||||
return self._validate_and_map(paragraphs, translations)
|
||||
|
||||
except Exception as e:
|
||||
logger.error(f"翻译chunk失败: {e}")
|
||||
return self._create_failure_map(paragraphs)
|
||||
|
||||
def _build_numbered_prompt(self, paragraphs: List[Dict]) -> str:
|
||||
"""
|
||||
构建带全局 ID 的 Prompt。
|
||||
|
||||
Args:
|
||||
paragraphs (List[Dict]): 段落列表。
|
||||
|
||||
Returns:
|
||||
str: 格式化后的 Prompt 字符串。
|
||||
"""
|
||||
lines = [
|
||||
"请将以下编号的英文段落翻译成中文。",
|
||||
"",
|
||||
"要求:",
|
||||
"1. 保持编号顺序,按相同编号返回翻译",
|
||||
"2. 准确传达原文含义,语言流畅自然",
|
||||
"3. 使用标准简体中文",
|
||||
"",
|
||||
"原文:",
|
||||
""
|
||||
]
|
||||
|
||||
# 添加编号段落(使用全局ID)
|
||||
for para in paragraphs:
|
||||
lines.append(f"[{para['global_id']}] {para['text']}")
|
||||
|
||||
lines.extend([
|
||||
"",
|
||||
"请按以下格式返回翻译:",
|
||||
"[p_0001] 第一段的中文翻译",
|
||||
"[p_0002] 第二段的中文翻译",
|
||||
"...",
|
||||
"",
|
||||
"只返回编号的中文翻译,不要包含其他内容。"
|
||||
])
|
||||
|
||||
return "\n".join(lines)
|
||||
|
||||
def _parse_numbered_response(self, response: str, paragraphs: List[Dict]) -> Dict[str, str]:
|
||||
"""
|
||||
解析 LLM 返回的带编号文本。
|
||||
|
||||
尝试使用正则表达式 `[p_xxxx] content` 提取 ID 和内容。
|
||||
如果解析结果缺失严重,尝试使用备用解析策略。
|
||||
|
||||
Args:
|
||||
response (str): LLM 的原始响应文本。
|
||||
paragraphs (List[Dict]): 原始请求的段落列表(用于校验)。
|
||||
|
||||
Returns:
|
||||
Dict[str, str]: 解析出的 {id: translation} 映射。
|
||||
"""
|
||||
translations = {}
|
||||
|
||||
# 按行分割
|
||||
lines = response.strip().split('\n')
|
||||
|
||||
for line in lines:
|
||||
line = line.strip()
|
||||
if not line:
|
||||
continue
|
||||
|
||||
# 匹配格式:[p_0001] 翻译内容
|
||||
match = re.match(r'\\[(p_\\d+)\\]\\s*(.*)', line)
|
||||
if match:
|
||||
global_id = match.group(1)
|
||||
translation = match.group(2).strip()
|
||||
|
||||
# Double check: remove any potential leading ID tag that leaked into the translation
|
||||
# e.g. if response was "[p_001] [p_001] text"
|
||||
translation = re.sub(r'^\\[p_\\d+\\]\\s*', '', translation)
|
||||
|
||||
if translation:
|
||||
translations[global_id] = translation
|
||||
|
||||
# 检查缺失的翻译
|
||||
expected_ids = [p['global_id'] for p in paragraphs]
|
||||
missing_ids = [pid for pid in expected_ids if pid not in translations]
|
||||
|
||||
if missing_ids:
|
||||
logger.warning(f"缺少 {len(missing_ids)} 个翻译: {missing_ids[:5]}")
|
||||
|
||||
# 尝试备用解析
|
||||
if len(translations) == 0:
|
||||
translations = self._fallback_parse(response, paragraphs)
|
||||
|
||||
found_count = len(translations)
|
||||
expected_count = len(paragraphs)
|
||||
logger.debug(f"解析翻译: {found_count}/{expected_count} 个段落")
|
||||
|
||||
return translations
|
||||
|
||||
def _fallback_parse(self, response: str, paragraphs: List[Dict]) -> Dict[str, str]:
|
||||
"""
|
||||
备用解析方法:按行顺序分割。
|
||||
|
||||
注意:仅当行数完全匹配时才使用,否则宁可失败也不要错位。
|
||||
|
||||
Args:
|
||||
response (str): 响应文本。
|
||||
paragraphs (List[Dict]): 段落列表。
|
||||
|
||||
Returns:
|
||||
Dict[str, str]: 映射字典。
|
||||
"""
|
||||
logger.debug("尝试使用备用解析方法")
|
||||
|
||||
# 移除可能的编号标记
|
||||
cleaned = re.sub(r'\\[p_\\d+\\]\\s*', '', response)
|
||||
|
||||
# 按双换行分割
|
||||
parts = [p.strip() for p in cleaned.split('\n\n') if p.strip()]
|
||||
|
||||
# 如果数量不匹配,尝试按单换行分割
|
||||
if len(parts) != len(paragraphs):
|
||||
parts = [p.strip() for p in cleaned.split('\n') if p.strip()]
|
||||
|
||||
# 只有当数量完全一致时才进行映射
|
||||
if len(parts) == len(paragraphs):
|
||||
translations = {}
|
||||
for i, para in enumerate(paragraphs):
|
||||
translations[para['global_id']] = parts[i]
|
||||
logger.warning(f"备用解析成功: 匹配了 {len(parts)} 行")
|
||||
return translations
|
||||
else:
|
||||
logger.warning(f"备用解析失败: 行数不匹配 (原文 {len(paragraphs)} vs 译文 {len(parts)})")
|
||||
# 返回空字典,后续会被 _validate_and_map 标记为失败
|
||||
return {}
|
||||
|
||||
def _validate_and_map(self, paragraphs: List[Dict],
|
||||
translations: Dict[str, str]) -> Dict[str, str]:
|
||||
"""
|
||||
验证翻译结果并填充缺失项。
|
||||
|
||||
确保每个请求的段落都有对应的返回结果。
|
||||
如果缺失,填充错误标记。
|
||||
|
||||
Args:
|
||||
paragraphs (List[Dict]): 原始段落列表。
|
||||
translations (Dict[str, str]): 解析出的翻译。
|
||||
|
||||
Returns:
|
||||
Dict[str, str]: 完整的映射。
|
||||
"""
|
||||
validated = {}
|
||||
|
||||
for para in paragraphs:
|
||||
global_id = para['global_id']
|
||||
translation = translations.get(global_id, "")
|
||||
|
||||
# 基本验证
|
||||
if not translation:
|
||||
validated[global_id] = f"[翻译失败 - 未返回翻译 - {global_id}]"
|
||||
elif not self._is_valid_translation(translation):
|
||||
validated[global_id] = f"[翻译失败 - 质量不合格 - {global_id}]"
|
||||
else:
|
||||
validated[global_id] = translation
|
||||
|
||||
return validated
|
||||
|
||||
def _is_valid_translation(self, translation: str) -> bool:
|
||||
"""
|
||||
验证单个翻译是否合法。
|
||||
|
||||
检查项:
|
||||
1. 是否包含错误标记。
|
||||
2. 是否包含中文字符。
|
||||
3. 长度是否过短。
|
||||
|
||||
Args:
|
||||
translation (str): 翻译文本。
|
||||
|
||||
Returns:
|
||||
bool: 是否有效。
|
||||
"""
|
||||
if translation.startswith('[翻译失败') or translation.startswith('[解析失败'):
|
||||
return False
|
||||
|
||||
if not re.search(r'[\u4e00-\u9fff]', translation):
|
||||
return False
|
||||
|
||||
if len(translation) < 1: # 放宽限制,允许极短翻译
|
||||
return False
|
||||
|
||||
return True
|
||||
|
||||
def _create_failure_map(self, paragraphs: List[Dict]) -> Dict[str, str]:
|
||||
"""创建全失败的映射(用于 API 错误时)。"""
|
||||
return {
|
||||
para['global_id']: f"[翻译失败 - API错误 - {para['global_id']}]"
|
||||
for para in paragraphs
|
||||
}
|
||||
|
||||
async def _make_request(self, prompt: str, model: str) -> str:
|
||||
"""
|
||||
执行实际的 API 请求。
|
||||
|
||||
使用速率限制器。
|
||||
|
||||
Args:
|
||||
prompt (str): 提示词。
|
||||
model (str): 模型名称。
|
||||
|
||||
Returns:
|
||||
str: API 返回的内容字符串。
|
||||
"""
|
||||
await self.rate_limiter.acquire()
|
||||
|
||||
try:
|
||||
response = await self.client.chat.completions.create(
|
||||
model=model,
|
||||
messages=[
|
||||
{"role": "system", "content": "你是一位专业的英中翻译专家。请严格按照要求的格式返回翻译。"},
|
||||
{"role": "user", "content": prompt}
|
||||
],
|
||||
temperature=self.config['translation'].get('temperature', 0.2),
|
||||
max_tokens=8000 # 足够大的值
|
||||
)
|
||||
|
||||
return response.choices[0].message.content.strip()
|
||||
|
||||
except Exception as e:
|
||||
logger.error(f"API请求失败: {e}")
|
||||
raise
|
||||
finally:
|
||||
self.rate_limiter.release()
|
||||
|
||||
async def close(self):
|
||||
"""关闭 HTTP 客户端连接。"""
|
||||
try:
|
||||
await self.client.close()
|
||||
logger.info("OpenRouter 客户端已关闭")
|
||||
except Exception as e:
|
||||
logger.warning(f"关闭客户端时出错: {e}")
|
||||
@@ -0,0 +1,343 @@
|
||||
"""
|
||||
文本处理器模块 - 重构版
|
||||
实现全局编号系统,确保段落精确对应 + 清理HTML标签
|
||||
"""
|
||||
|
||||
import re
|
||||
from bs4 import BeautifulSoup
|
||||
from typing import List, Dict
|
||||
from loguru import logger
|
||||
|
||||
|
||||
class TextProcessor:
|
||||
"""文本处理器 - 简化版,专注核心功能"""
|
||||
|
||||
def __init__(self, config: Dict):
|
||||
"""
|
||||
初始化文本处理器
|
||||
|
||||
Args:
|
||||
config: 配置字典
|
||||
"""
|
||||
self.config = config
|
||||
# 不再使用最小长度限制,只要有内容就提取
|
||||
self.chunk_size = config['translation']['chunk_size']
|
||||
self._global_id_counter = 0
|
||||
|
||||
logger.info(f"文本处理器初始化: chunk_size={self.chunk_size}, 无最小长度限制")
|
||||
|
||||
@staticmethod
|
||||
def get_valid_text_elements(soup) -> List:
|
||||
"""
|
||||
获取有效的文本元素列表,自动过滤嵌套容器
|
||||
(静态方法,供Builder共用,确保遍历顺序一致)
|
||||
|
||||
Args:
|
||||
soup: BeautifulSoup对象
|
||||
|
||||
Returns:
|
||||
过滤后的元素列表
|
||||
"""
|
||||
# 定义关注的标签
|
||||
tags = ['p', 'div', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'blockquote', 'li', 'td']
|
||||
|
||||
# 1. 获取所有候选元素
|
||||
all_candidates = soup.find_all(tags)
|
||||
|
||||
# 2. 转换为集合以提高查找速度
|
||||
candidate_set = set(all_candidates)
|
||||
|
||||
final_elements = []
|
||||
|
||||
for element in all_candidates:
|
||||
# 3. 检查当前元素是否包含其他候选元素
|
||||
# 如果包含,说明它是父容器,应该跳过,让子元素去被处理
|
||||
has_candidate_children = False
|
||||
|
||||
# 只查找直接子级或后代中的候选标签
|
||||
descendants = element.find_all(tags)
|
||||
|
||||
for child in descendants:
|
||||
if child in candidate_set:
|
||||
has_candidate_children = True
|
||||
break
|
||||
|
||||
if has_candidate_children:
|
||||
# 这是一个容器元素,跳过
|
||||
continue
|
||||
|
||||
final_elements.append(element)
|
||||
|
||||
return final_elements
|
||||
|
||||
def extract_paragraphs_with_global_id(self, html_content: str, source_file: str = "") -> List[Dict]:
|
||||
"""
|
||||
提取段落并分配全局唯一ID
|
||||
|
||||
Args:
|
||||
html_content: HTML内容
|
||||
source_file: 来源文件名(用于调试)
|
||||
|
||||
Returns:
|
||||
带全局ID的段落列表
|
||||
"""
|
||||
try:
|
||||
soup = BeautifulSoup(html_content, 'html.parser')
|
||||
paragraphs = []
|
||||
|
||||
# 移除不需要的元素
|
||||
for element in soup(['script', 'style', 'meta', 'link']):
|
||||
element.decompose()
|
||||
|
||||
# 获取有效的文本元素 (使用统一的过滤逻辑)
|
||||
text_elements = self.get_valid_text_elements(soup)
|
||||
|
||||
position = 0
|
||||
for element in text_elements:
|
||||
# 清理文本:移除上标、下标等
|
||||
clean_text = self._clean_element_text(element)
|
||||
|
||||
# 过滤逻辑:
|
||||
# 1. 如果是导航元素,跳过
|
||||
if self._is_navigation_element(element):
|
||||
continue
|
||||
|
||||
# 2. 内容检查:只要不是空字符串,就保留
|
||||
if not clean_text:
|
||||
continue
|
||||
|
||||
# 分配全局唯一ID
|
||||
global_id = self._generate_global_id()
|
||||
|
||||
paragraphs.append({
|
||||
'global_id': global_id,
|
||||
'text': clean_text,
|
||||
'html_element': str(element),
|
||||
'source_file': source_file,
|
||||
'position': position, # 在文件中的位置(重要!)
|
||||
'tag': element.name,
|
||||
'length': len(clean_text)
|
||||
})
|
||||
|
||||
position += 1
|
||||
|
||||
logger.info(f"从 {source_file} 提取了 {len(paragraphs)} 个段落")
|
||||
return paragraphs
|
||||
|
||||
except Exception as e:
|
||||
logger.error(f"提取段落失败: {e}")
|
||||
return []
|
||||
|
||||
@staticmethod
|
||||
def clean_element_text(element) -> str:
|
||||
"""
|
||||
清理元素文本:移除上标、下标、脚注等 (静态方法,供Builder共用)
|
||||
|
||||
Args:
|
||||
element: HTML元素
|
||||
|
||||
Returns:
|
||||
清理后的文本
|
||||
"""
|
||||
# 复制元素,避免修改原始DOM
|
||||
element_copy = element.__copy__()
|
||||
|
||||
# 移除上标和下标(通常是脚注引用)
|
||||
for tag in element_copy.find_all(['sup', 'sub']):
|
||||
tag.decompose()
|
||||
|
||||
# 移除带有特定class的span/a标签 (脚注常见写法)
|
||||
footnote_patterns = re.compile(r'footnote|endnote|reference|note|super|sub', re.I)
|
||||
for tag in element_copy.find_all(['a', 'span', 'div'], class_=footnote_patterns):
|
||||
tag.decompose()
|
||||
|
||||
# 移除仅包含数字或中括号数字的小型文本节点 (针对单纯文本形式的脚注 [1] 或 1)
|
||||
for tag in element_copy.find_all('span'):
|
||||
text = tag.get_text().strip()
|
||||
# 匹配 [1], (1), 1, 12
|
||||
if re.match(r'^(\[\d+\]|\(\d+\)|\d+)$', text):
|
||||
tag.decompose()
|
||||
|
||||
# 获取清理后的文本
|
||||
text = element_copy.get_text().strip()
|
||||
|
||||
# 额外的正则清理:移除正文末尾残留的引用标记,如 "text.[1]" 或 "text.1"
|
||||
text = re.sub(r'(\.|。|,|,)\s*(\[\d+\]|\d+)(?=\s|$)', r'\1', text)
|
||||
|
||||
# 清理多余的空白
|
||||
text = re.sub(r'\s+', ' ', text)
|
||||
|
||||
return text
|
||||
|
||||
@staticmethod
|
||||
def is_navigation_element(element) -> bool:
|
||||
"""
|
||||
判断是否是导航元素 (静态方法,供Builder共用)
|
||||
|
||||
Args:
|
||||
element: HTML元素
|
||||
|
||||
Returns:
|
||||
是否是导航元素
|
||||
"""
|
||||
# 检查class属性
|
||||
classes = element.get('class', [])
|
||||
nav_classes = ['nav', 'navigation', 'toc', 'menu', 'header', 'footer', 'page-number']
|
||||
|
||||
# 处理 class 可能是列表或字符串的情况
|
||||
if isinstance(classes, list):
|
||||
class_str = ' '.join(classes).lower()
|
||||
else:
|
||||
class_str = str(classes).lower()
|
||||
|
||||
if any(nav_class in class_str for nav_class in nav_classes):
|
||||
return True
|
||||
|
||||
# 检查父元素
|
||||
parent = element.parent
|
||||
if parent:
|
||||
parent_classes = parent.get('class', [])
|
||||
if isinstance(parent_classes, list):
|
||||
parent_class_str = ' '.join(parent_classes).lower()
|
||||
else:
|
||||
parent_class_str = str(parent_classes).lower()
|
||||
|
||||
if any(nav_class in parent_class_str for nav_class in nav_classes):
|
||||
return True
|
||||
|
||||
return False
|
||||
|
||||
def _clean_element_text(self, element) -> str:
|
||||
"""兼容旧调用的包装器"""
|
||||
return self.clean_element_text(element)
|
||||
|
||||
def _is_navigation_element(self, element) -> bool:
|
||||
"""兼容旧调用的包装器"""
|
||||
return self.is_navigation_element(element)
|
||||
|
||||
def _generate_global_id(self) -> str:
|
||||
"""
|
||||
生成全局唯一ID
|
||||
|
||||
Returns:
|
||||
全局ID字符串,格式:p_0001
|
||||
"""
|
||||
self._global_id_counter += 1
|
||||
return f"p_{self._global_id_counter:04d}"
|
||||
|
||||
def create_chunks_by_size(self, paragraphs: List[Dict]) -> List[List[Dict]]:
|
||||
"""
|
||||
按字符数创建chunks,不切断段落,不考虑章节边界
|
||||
|
||||
Args:
|
||||
paragraphs: 带全局ID的段落列表
|
||||
|
||||
Returns:
|
||||
分块的段落列表
|
||||
"""
|
||||
if not paragraphs:
|
||||
return []
|
||||
|
||||
chunks = []
|
||||
current_chunk = []
|
||||
current_size = 0
|
||||
|
||||
for paragraph in paragraphs:
|
||||
para_length = paragraph['length']
|
||||
|
||||
# 如果当前chunk加上这个段落不超过限制,就加入
|
||||
if current_size + para_length <= self.chunk_size:
|
||||
current_chunk.append(paragraph)
|
||||
current_size += para_length
|
||||
else:
|
||||
# 保存当前chunk(如果有内容)
|
||||
if current_chunk:
|
||||
chunks.append(current_chunk)
|
||||
|
||||
# 开始新chunk
|
||||
current_chunk = [paragraph]
|
||||
current_size = para_length
|
||||
|
||||
# 保存最后一个chunk
|
||||
if current_chunk:
|
||||
chunks.append(current_chunk)
|
||||
|
||||
# 统计信息
|
||||
total_chars = sum(p['length'] for p in paragraphs)
|
||||
avg_chunk_size = total_chars / len(chunks) if chunks else 0
|
||||
|
||||
logger.info(f"创建了 {len(chunks)} 个chunk,"
|
||||
f"总段落数: {len(paragraphs)}, "
|
||||
f"平均chunk大小: {avg_chunk_size:.0f} 字符")
|
||||
|
||||
# 显示chunk分布
|
||||
for i, chunk in enumerate(chunks, 1):
|
||||
chunk_size = sum(p['length'] for p in chunk)
|
||||
logger.debug(f" Chunk {i}: {len(chunk)} 段落, {chunk_size} 字符, "
|
||||
f"ID范围: {chunk[0]['global_id']} - {chunk[-1]['global_id']}")
|
||||
|
||||
return chunks
|
||||
|
||||
def validate_translation(self, original: str, translation: str) -> bool:
|
||||
"""
|
||||
验证翻译质量
|
||||
|
||||
Args:
|
||||
original: 原文
|
||||
translation: 译文
|
||||
|
||||
Returns:
|
||||
是否通过验证
|
||||
"""
|
||||
# 检查是否是失败标记
|
||||
if translation.startswith('[翻译失败') or translation.startswith('[解析失败'):
|
||||
return False
|
||||
|
||||
# 检查基本长度
|
||||
if len(translation) < len(original) * 0.1:
|
||||
logger.warning("翻译过短")
|
||||
return False
|
||||
|
||||
if len(translation) > len(original) * 8:
|
||||
logger.warning("翻译过长")
|
||||
return False
|
||||
|
||||
# 检查是否包含中文
|
||||
if not re.search(r'[\u4e00-\u9fff]', translation):
|
||||
logger.warning("翻译不包含中文")
|
||||
return False
|
||||
|
||||
return True
|
||||
|
||||
def get_statistics(self, paragraphs: List[Dict]) -> Dict:
|
||||
"""
|
||||
获取段落统计信息
|
||||
|
||||
Args:
|
||||
paragraphs: 段落列表
|
||||
|
||||
Returns:
|
||||
统计信息字典
|
||||
"""
|
||||
if not paragraphs:
|
||||
return {}
|
||||
|
||||
total_chars = sum(p['length'] for p in paragraphs)
|
||||
avg_length = total_chars / len(paragraphs)
|
||||
|
||||
# 按来源文件分组统计
|
||||
by_source = {}
|
||||
for p in paragraphs:
|
||||
source = p['source_file']
|
||||
if source not in by_source:
|
||||
by_source[source] = 0
|
||||
by_source[source] += 1
|
||||
|
||||
return {
|
||||
'total_paragraphs': len(paragraphs),
|
||||
'total_characters': total_chars,
|
||||
'average_length': round(avg_length, 1),
|
||||
'min_length': min(p['length'] for p in paragraphs),
|
||||
'max_length': max(p['length'] for p in paragraphs),
|
||||
'by_source_file': by_source
|
||||
}
|
||||
@@ -0,0 +1,368 @@
|
||||
"""
|
||||
EPUB 翻译器核心模块 (EPUB Translator Core Module)
|
||||
|
||||
协调整个翻译流程:
|
||||
1. 解析 EPUB。
|
||||
2. 提取文本。
|
||||
3. 分块并并发调用 LLM 翻译。
|
||||
4. 缓存管理。
|
||||
5. 重组生成双语 EPUB。
|
||||
|
||||
Classes:
|
||||
EPUBTranslator: 翻译器主类。
|
||||
"""
|
||||
|
||||
import asyncio
|
||||
from typing import List, Dict
|
||||
from pathlib import Path
|
||||
from loguru import logger
|
||||
from rich.console import Console
|
||||
from rich.progress import Progress, SpinnerColumn, TextColumn, BarColumn, TimeElapsedColumn
|
||||
from rich.table import Table
|
||||
from rich.live import Live
|
||||
|
||||
from .epub_parser import EPUBParser
|
||||
from .llm_client import OpenRouterClient
|
||||
from .text_processor import TextProcessor
|
||||
from .bilingual_builder import BilingualEPUBBuilder
|
||||
from .cache import TranslationCache
|
||||
|
||||
|
||||
class EPUBTranslator:
|
||||
"""
|
||||
EPUB 翻译器主控类。
|
||||
|
||||
Attributes:
|
||||
config (Dict): 全局配置。
|
||||
console (Console): Rich 库的控制台对象,用于漂亮输出。
|
||||
use_cache (bool): 是否启用缓存。
|
||||
parser (EPUBParser): EPUB 解析器实例。
|
||||
llm_client (OpenRouterClient): LLM 客户端实例。
|
||||
text_processor (TextProcessor): 文本处理器实例。
|
||||
cache (TranslationCache): 缓存管理器实例。
|
||||
concurrent_limit (int): 最大并发数。
|
||||
"""
|
||||
|
||||
def __init__(self, config: Dict, use_cache: bool = True):
|
||||
"""
|
||||
初始化翻译器。
|
||||
|
||||
Args:
|
||||
config (Dict): 配置字典。
|
||||
use_cache (bool): 覆盖配置的缓存启用开关。
|
||||
"""
|
||||
self.config = config
|
||||
self.console = Console()
|
||||
self.use_cache = use_cache and config.get('cache', {}).get('enabled', True)
|
||||
|
||||
# 初始化组件
|
||||
self.parser = None
|
||||
self.llm_client = OpenRouterClient(config)
|
||||
self.text_processor = TextProcessor(config)
|
||||
self.cache = TranslationCache(config) if self.use_cache else None
|
||||
|
||||
# 并发控制
|
||||
self.concurrent_limit = config['openrouter']['rate_limits']['concurrent_requests']
|
||||
|
||||
logger.info(f"EPUB 翻译器初始化完成,缓存: {'启用' if self.use_cache else '禁用'}, "
|
||||
f"并发数: {self.concurrent_limit}")
|
||||
|
||||
async def translate_epub(self, epub_path: str,
|
||||
test_mode: bool = False,
|
||||
output_dir: str = None) -> str:
|
||||
"""
|
||||
执行 EPUB 翻译的主流程。
|
||||
|
||||
Args:
|
||||
epub_path (str): 源 EPUB 文件路径。
|
||||
test_mode (bool): 是否仅翻译前几段进行测试。
|
||||
output_dir (str): 自定义输出目录。
|
||||
|
||||
Returns:
|
||||
str: 生成的双语 EPUB 文件路径。
|
||||
|
||||
Raises:
|
||||
Exception: 翻译过程中发生的任何未捕获异常。
|
||||
"""
|
||||
try:
|
||||
# 初始化解析器
|
||||
self.parser = EPUBParser(epub_path)
|
||||
|
||||
# 显示书籍信息
|
||||
self._display_book_info()
|
||||
|
||||
if test_mode:
|
||||
return await self._run_test_mode()
|
||||
else:
|
||||
return await self._run_full_translation(output_dir)
|
||||
|
||||
except Exception as e:
|
||||
logger.error(f"翻译过程失败: {e}")
|
||||
self.console.print(f"[red]翻译失败: {e}[/red]")
|
||||
raise
|
||||
finally:
|
||||
await self.llm_client.close()
|
||||
|
||||
def _display_book_info(self):
|
||||
"""在控制台显示书籍元数据表格。"""
|
||||
book_info = self.parser.get_book_info()
|
||||
|
||||
table = Table(title="书籍信息")
|
||||
table.add_column("属性", style="cyan")
|
||||
table.add_column("值", style="white")
|
||||
|
||||
table.add_row("文件名", str(book_info['filename']))
|
||||
table.add_row("标题", str(book_info['title']))
|
||||
table.add_row("作者", str(book_info['author']))
|
||||
table.add_row("语言", str(book_info['language']))
|
||||
table.add_row("文档数", str(book_info['document_count']))
|
||||
|
||||
self.console.print(table)
|
||||
|
||||
async def _run_test_mode(self) -> Dict:
|
||||
"""
|
||||
执行测试模式:仅翻译开头的一小部分。
|
||||
|
||||
Returns:
|
||||
Dict: 测试结果摘要。
|
||||
"""
|
||||
self.console.print("[yellow]运行测试模式...[/yellow]")
|
||||
|
||||
try:
|
||||
# 提取所有内容
|
||||
content_items = self.parser.extract_all_content_items()
|
||||
|
||||
if not content_items:
|
||||
return {'status': 'failed', 'error': '未找到内容'}
|
||||
|
||||
# 只测试第一个内容项的前几个段落
|
||||
first_item = content_items[0]
|
||||
paragraphs = self.text_processor.extract_paragraphs_with_global_id(
|
||||
first_item['content'],
|
||||
first_item['file_name']
|
||||
)
|
||||
|
||||
if not paragraphs:
|
||||
return {'status': 'failed', 'error': '未找到段落'}
|
||||
|
||||
# 测试前3个段落
|
||||
test_paragraphs = paragraphs[:3]
|
||||
|
||||
self.console.print(f"测试翻译 {len(test_paragraphs)} 个段落...")
|
||||
|
||||
# 翻译
|
||||
translations = await self.llm_client.translate_chunk_with_ids(
|
||||
test_paragraphs,
|
||||
model_type="test"
|
||||
)
|
||||
|
||||
# 显示结果
|
||||
for para in test_paragraphs:
|
||||
global_id = para['global_id']
|
||||
translation = translations.get(global_id, "[未找到翻译]")
|
||||
|
||||
self.console.print(f"\n[cyan]{global_id}[/cyan]")
|
||||
self.console.print(f"[green]原文:[/green] {para['text'][:100]}...")
|
||||
self.console.print(f"[blue]译文:[/blue] {translation[:100]}...")
|
||||
|
||||
return {
|
||||
'status': 'success',
|
||||
'tested_paragraphs': len(test_paragraphs),
|
||||
'translations': translations
|
||||
}
|
||||
|
||||
except Exception as e:
|
||||
logger.error(f"测试模式失败: {e}")
|
||||
return {'status': 'failed', 'error': str(e)}
|
||||
|
||||
async def _run_full_translation(self, output_dir: str = None) -> str:
|
||||
"""
|
||||
执行完整翻译模式。
|
||||
|
||||
Returns:
|
||||
str: 输出文件路径。
|
||||
"""
|
||||
self.console.print("[green]开始完整翻译...[/green]")
|
||||
|
||||
# 1. 提取所有内容
|
||||
content_items = self.parser.extract_all_content_items()
|
||||
|
||||
if not content_items:
|
||||
raise ValueError("未找到需要翻译的内容")
|
||||
|
||||
# 2. 提取所有段落(带全局ID)
|
||||
all_paragraphs = []
|
||||
paragraph_to_file_map = {} # 记录段落属于哪个文件
|
||||
|
||||
for item in content_items:
|
||||
paragraphs = self.text_processor.extract_paragraphs_with_global_id(
|
||||
item['content'],
|
||||
item['file_name']
|
||||
)
|
||||
|
||||
# 记录每个段落属于哪个文件
|
||||
for para in paragraphs:
|
||||
paragraph_to_file_map[para['global_id']] = {
|
||||
'file_name': item['file_name'],
|
||||
'text': para['text'],
|
||||
'html_element': para['html_element']
|
||||
}
|
||||
|
||||
all_paragraphs.extend(paragraphs)
|
||||
|
||||
logger.info(f"共提取 {len(all_paragraphs)} 个段落")
|
||||
|
||||
# 显示统计信息
|
||||
stats = self.text_processor.get_statistics(all_paragraphs)
|
||||
self.console.print(f"\n[cyan]段落统计:[/cyan]")
|
||||
self.console.print(f" 总段落数: {stats['total_paragraphs']}")
|
||||
self.console.print(f" 总字符数: {stats['total_characters']}")
|
||||
self.console.print(f" 平均长度: {stats['average_length']}")
|
||||
|
||||
# 3. 创建 Chunks
|
||||
chunks = self.text_processor.create_chunks_by_size(all_paragraphs)
|
||||
|
||||
self.console.print(f"\n[cyan]分块信息:[/cyan]")
|
||||
self.console.print(f" Chunk数量: {len(chunks)}")
|
||||
self.console.print(f" Chunk大小: {self.config['translation']['chunk_size']} 字符")
|
||||
self.console.print(f" [yellow]并发翻译: {self.concurrent_limit} 个请求同时进行[/yellow]")
|
||||
|
||||
# 4. 并发翻译
|
||||
translation_map = await self._translate_all_chunks_concurrent(chunks)
|
||||
|
||||
logger.info(f"完成翻译,共 {len(translation_map)} 个段落")
|
||||
|
||||
# 5. 构建双语 EPUB
|
||||
output_path = output_dir or self.config['output']['output_dir']
|
||||
builder = BilingualEPUBBuilder(self.parser.book, self.config)
|
||||
result_file = builder.create_bilingual_epub_with_mapping(
|
||||
translation_map,
|
||||
paragraph_to_file_map,
|
||||
output_path
|
||||
)
|
||||
|
||||
# 显示缓存统计
|
||||
if self.cache:
|
||||
cache_stats = self.cache.get_cache_stats()
|
||||
self.console.print(f"\n[cyan]缓存统计: {cache_stats.get('total_files', 0)} 个文件, "
|
||||
f"{cache_stats.get('total_paragraphs', 0)} 个段落[/cyan]")
|
||||
|
||||
self.console.print(f"\n[green]✅ 翻译完成!输出文件: {result_file}[/green]")
|
||||
return result_file
|
||||
|
||||
async def _translate_all_chunks_concurrent(self, chunks: List[List[Dict]]) -> Dict[str, str]:
|
||||
"""
|
||||
并发翻译所有 chunks。
|
||||
|
||||
使用 asyncio.gather 并发执行,利用 Semaphore 控制并发数。
|
||||
|
||||
Args:
|
||||
chunks (List[List[Dict]]): 待翻译的 chunk 列表。
|
||||
|
||||
Returns:
|
||||
Dict[str, str]: 合并后的全量翻译映射 {id: translation}。
|
||||
"""
|
||||
# 创建进度跟踪
|
||||
total_chunks = len(chunks)
|
||||
translation_map = {}
|
||||
|
||||
with Progress(
|
||||
SpinnerColumn(),
|
||||
TextColumn("[progress.description]{task.description}"),
|
||||
BarColumn(),
|
||||
TextColumn("[progress.percentage]{task.percentage:>3.0f}%"),
|
||||
TextColumn("({task.completed}/{task.total})"),
|
||||
console=self.console
|
||||
) as progress:
|
||||
|
||||
task_id = progress.add_task(
|
||||
f"[cyan]并发翻译 (最多{self.concurrent_limit}个同时进行)",
|
||||
total=total_chunks
|
||||
)
|
||||
|
||||
# 创建所有翻译任务
|
||||
tasks = [
|
||||
self._translate_single_chunk(chunk, i, total_chunks, progress, task_id)
|
||||
for i, chunk in enumerate(chunks, 1)
|
||||
]
|
||||
|
||||
# 并发执行所有任务
|
||||
results = await asyncio.gather(*tasks, return_exceptions=True)
|
||||
|
||||
# 处理结果
|
||||
for i, result in enumerate(results, 1):
|
||||
if isinstance(result, Exception):
|
||||
logger.error(f"Chunk {i} 翻译失败: {result}")
|
||||
# 为失败的chunk添加失败标记
|
||||
chunk = chunks[i - 1]
|
||||
for para in chunk:
|
||||
translation_map[para['global_id']] = f"[翻译失败 - {para['global_id']}]"
|
||||
elif isinstance(result, dict):
|
||||
# 成功的翻译结果
|
||||
translation_map.update(result)
|
||||
else:
|
||||
logger.warning(f"Chunk {i} 返回了意外的结果类型: {type(result)}")
|
||||
|
||||
logger.info(f"并发翻译完成,共处理 {len(translation_map)} 个段落")
|
||||
return translation_map
|
||||
|
||||
async def _translate_single_chunk(self, chunk: List[Dict], chunk_index: int,
|
||||
total_chunks: int, progress, task_id) -> Dict[str, str]:
|
||||
"""
|
||||
翻译单个 chunk(包含缓存查找逻辑)。
|
||||
|
||||
Args:
|
||||
chunk (List[Dict]): 段落列表。
|
||||
chunk_index (int): 当前 chunk 索引(用于日志)。
|
||||
total_chunks (int): 总 chunk 数(用于日志)。
|
||||
progress (Progress): 进度条对象。
|
||||
task_id (TaskID): 进度条任务 ID。
|
||||
|
||||
Returns:
|
||||
Dict[str, str]: 翻译结果映射。
|
||||
"""
|
||||
try:
|
||||
# 1. 检查缓存
|
||||
cached = None
|
||||
if self.cache:
|
||||
cached = self.cache.get_chunk_translation(
|
||||
chunk,
|
||||
self.llm_client.models.get('production', '')
|
||||
)
|
||||
|
||||
if cached:
|
||||
logger.debug(f"Chunk {chunk_index}/{total_chunks} 缓存命中")
|
||||
progress.update(task_id, advance=1)
|
||||
return cached
|
||||
|
||||
# 2. 调用 API 翻译
|
||||
chunk_translations = await self.llm_client.translate_chunk_with_ids(
|
||||
chunk,
|
||||
model_type="production"
|
||||
)
|
||||
|
||||
# 3. 保存缓存
|
||||
if self.cache:
|
||||
success = not any(t.startswith('[翻译失败')
|
||||
for t in chunk_translations.values())
|
||||
self.cache.save_chunk_translation(
|
||||
chunk,
|
||||
chunk_translations,
|
||||
self.llm_client.models.get('production', ''),
|
||||
success
|
||||
)
|
||||
|
||||
logger.debug(f"Chunk {chunk_index}/{total_chunks} 翻译完成")
|
||||
progress.update(task_id, advance=1)
|
||||
|
||||
return chunk_translations
|
||||
|
||||
except Exception as e:
|
||||
logger.error(f"翻译chunk {chunk_index} 失败: {e}")
|
||||
progress.update(task_id, advance=1)
|
||||
|
||||
# 返回失败标记
|
||||
return {
|
||||
para['global_id']: f"[翻译失败 - API错误 - {para['global_id']}]"
|
||||
for para in chunk
|
||||
}
|
||||
@@ -0,0 +1,180 @@
|
||||
"""
|
||||
工具函数模块
|
||||
提供配置加载、日志设置等通用功能
|
||||
"""
|
||||
|
||||
import json
|
||||
import os
|
||||
from pathlib import Path
|
||||
from typing import Dict, Any
|
||||
from loguru import logger
|
||||
import sys
|
||||
|
||||
|
||||
def load_config(config_path: str = "config/config.json") -> Dict[str, Any]:
|
||||
"""
|
||||
加载配置文件
|
||||
|
||||
Args:
|
||||
config_path: 配置文件路径
|
||||
|
||||
Returns:
|
||||
配置字典
|
||||
"""
|
||||
try:
|
||||
with open(config_path, 'r', encoding='utf-8') as f:
|
||||
config = json.load(f)
|
||||
|
||||
# 从环境变量获取 API Key
|
||||
if 'OPENROUTER_API_KEY' in os.environ:
|
||||
config['openrouter']['api_key'] = os.environ['OPENROUTER_API_KEY']
|
||||
|
||||
return config
|
||||
except FileNotFoundError:
|
||||
raise FileNotFoundError(f"配置文件未找到: {config_path}")
|
||||
except json.JSONDecodeError as e:
|
||||
raise ValueError(f"配置文件格式错误: {e}")
|
||||
|
||||
|
||||
def load_prompts(prompts_path: str = "config/prompts.json") -> Dict[str, str]:
|
||||
"""
|
||||
加载提示词模板
|
||||
|
||||
Args:
|
||||
prompts_path: 提示词文件路径
|
||||
|
||||
Returns:
|
||||
提示词字典
|
||||
"""
|
||||
try:
|
||||
with open(prompts_path, 'r', encoding='utf-8') as f:
|
||||
return json.load(f)
|
||||
except FileNotFoundError:
|
||||
raise FileNotFoundError(f"提示词文件未找到: {prompts_path}")
|
||||
|
||||
|
||||
def setup_logging(config: Dict[str, Any]) -> None:
|
||||
"""
|
||||
设置日志配置
|
||||
|
||||
Args:
|
||||
config: 配置字典
|
||||
"""
|
||||
log_config = config.get('logging', {})
|
||||
|
||||
# 移除默认处理器
|
||||
logger.remove()
|
||||
|
||||
# 添加控制台输出
|
||||
logger.add(
|
||||
sys.stdout,
|
||||
level=log_config.get('level', 'INFO'),
|
||||
format="<green>{time:YYYY-MM-DD HH:mm:ss}</green> | <level>{level: <8}</level> | <cyan>{name}</cyan>:<cyan>{function}</cyan>:<cyan>{line}</cyan> - <level>{message}</level>"
|
||||
)
|
||||
|
||||
# 添加文件输出
|
||||
if 'file' in log_config:
|
||||
log_file = log_config['file']
|
||||
# 确保日志目录存在
|
||||
Path(log_file).parent.mkdir(parents=True, exist_ok=True)
|
||||
|
||||
logger.add(
|
||||
log_file,
|
||||
level=log_config.get('level', 'INFO'),
|
||||
rotation=log_config.get('rotation', '10 MB'),
|
||||
retention=log_config.get('retention', '7 days'),
|
||||
encoding='utf-8',
|
||||
format="{time:YYYY-MM-DD HH:mm:ss} | {level: <8} | {name}:{function}:{line} - {message}"
|
||||
)
|
||||
|
||||
|
||||
def ensure_output_dir(output_dir: str) -> Path:
|
||||
"""
|
||||
确保输出目录存在
|
||||
|
||||
Args:
|
||||
output_dir: 输出目录路径
|
||||
|
||||
Returns:
|
||||
输出目录的 Path 对象
|
||||
"""
|
||||
output_path = Path(output_dir)
|
||||
output_path.mkdir(parents=True, exist_ok=True)
|
||||
return output_path
|
||||
|
||||
|
||||
def sanitize_filename(filename: str) -> str:
|
||||
"""
|
||||
清理文件名,移除非法字符
|
||||
|
||||
Args:
|
||||
filename: 原始文件名
|
||||
|
||||
Returns:
|
||||
清理后的文件名
|
||||
"""
|
||||
import re
|
||||
# 移除或替换非法字符
|
||||
filename = re.sub(r'[<>:"/\\|?*]', '_', filename)
|
||||
# 移除多余的空格和点
|
||||
filename = re.sub(r'\s+', ' ', filename).strip('. ')
|
||||
return filename
|
||||
|
||||
|
||||
def format_file_size(size_bytes: int) -> str:
|
||||
"""
|
||||
格式化文件大小显示
|
||||
|
||||
Args:
|
||||
size_bytes: 字节数
|
||||
|
||||
Returns:
|
||||
格式化的大小字符串
|
||||
"""
|
||||
if size_bytes == 0:
|
||||
return "0B"
|
||||
|
||||
size_names = ["B", "KB", "MB", "GB"]
|
||||
import math
|
||||
i = int(math.floor(math.log(size_bytes, 1024)))
|
||||
p = math.pow(1024, i)
|
||||
s = round(size_bytes / p, 2)
|
||||
return f"{s} {size_names[i]}"
|
||||
|
||||
|
||||
def estimate_tokens(text: str) -> int:
|
||||
"""
|
||||
估算文本的 token 数量
|
||||
|
||||
Args:
|
||||
text: 输入文本
|
||||
|
||||
Returns:
|
||||
估算的 token 数量
|
||||
"""
|
||||
# 简单估算:英文约 4 字符/token,中文约 1.5 字符/token
|
||||
import re
|
||||
|
||||
# 分离中英文
|
||||
chinese_chars = len(re.findall(r'[\u4e00-\u9fff]', text))
|
||||
other_chars = len(text) - chinese_chars
|
||||
|
||||
# 估算 tokens
|
||||
estimated_tokens = chinese_chars / 1.5 + other_chars / 4
|
||||
return int(estimated_tokens)
|
||||
|
||||
|
||||
def truncate_text(text: str, max_length: int = 100) -> str:
|
||||
"""
|
||||
截断文本用于显示
|
||||
|
||||
Args:
|
||||
text: 原始文本
|
||||
max_length: 最大长度
|
||||
|
||||
Returns:
|
||||
截断后的文本
|
||||
"""
|
||||
if len(text) <= max_length:
|
||||
return text
|
||||
return text[:max_length-3] + "..."
|
||||
Reference in New Issue
Block a user