add tool.

rename.cpp

@@ -0,0 +1,91 @@
+#include <filesystem>
+#include <format>
+#include <fstream>
+#include <iostream>
+#include <vector>
+
+// g++ -std=c++20 rename.cpp -o rename
+
+
+// title 字段需要,可以先随便填
+constexpr auto Template = R"(
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<episodedetails>
+  <title>黑色五叶草</title>
+  <showtitle>黑色五叶草</showtitle>
+  <season>{}</season>
+  <episode>{}</episode>
+  <original_filename>{}</original_filename>
+</episodedetails>
+)";
+
+struct SeasonRange {
+    int start;
+    int end;
+    int season;
+};
+const std::vector<SeasonRange> ranges = {
+    {1, 170, 1},    // 001-048  season 1 48集
+};
+
+// 文件夹内有 001.mkv-328.mkv 文件，使用C++ STL filesystem 根据上面的对应关系生成 001.nfo-328.nfo, 使用 std::format 传入字符串
+// Template 输出最终内容写入对应的nfo文件
+
+int main(int argc, char const *argv[]) {
+    std::cout << "this is a simple rename app." << std::endl;
+    for (const auto &entry : std::filesystem::directory_iterator(".")) {
+        if (!entry.is_regular_file()) continue;
+
+        const auto &path = entry.path();
+        if (path.extension() != ".mkv") continue;
+
+        const std::string filename = path.filename().string();
+        const std::string stem = path.stem().string();
+        std::cout <<"stem: "<<stem<<std::endl;
+
+        // 提取前导数字部分
+        size_t num_length = 0;
+        while (num_length < stem.length() && std::isdigit(stem[num_length])) {
+            num_length++;
+        }
+
+        if (num_length == 0) {
+            std::cerr << "跳过无数字前缀的文件: " << filename << std::endl;
+            continue;
+        }
+
+        try {
+            const int episode_number = std::stoi(stem.substr(0, num_length));
+
+            // 确定季度和集数
+            int season = -1;
+            int episode_in_season = -1;
+            for (const auto &range : ranges) {
+                if (episode_number >= range.start && episode_number <= range.end) {
+                    season = range.season;
+                    episode_in_season = episode_number - range.start + 1;
+                    break;
+                }
+            }
+
+            if (season == -1) {
+                std::cerr << "未找到对应的季度: " << episode_number << std::endl;
+                continue;
+            }
+
+            // 生成XML内容
+            std::string xml_content = std::format(Template, season, episode_in_season, filename);
+
+            // 写入.nfo文件
+            std::filesystem::path nfo_path = path;
+            nfo_path.replace_extension(".nfo");
+            std::ofstream out_file(nfo_path);
+            out_file << xml_content;
+            std::cout <<"filename: "<<filename<< ", episode_number: "<<episode_number<<", episode_in_season: "<<episode_in_season<< std::endl;
+            std::cout << "已生成: " << nfo_path.filename() << std::endl;
+        } catch (const std::exception &e) {
+            std::cerr << "处理文件 " << filename << " 时出错: " << e.what() << std::endl;
+        }
+    }
+    return 0;
+}