Initial commit: FunASR Speech Recognition Toolkit

Add complete FunASR codebase including models, runtime, and documentation.
2026-07-09 22:38:58 +08:00
commit 6116b1f3c6
3683 changed files with 990984 additions and 0 deletions
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+#include <string>
+#include <vector>
+#include <sstream>
+#include <cctype>
+#include <cstdio>
+#include <algorithm>
+
+// 辅助函数：修剪字符串两端的空白
+std::string trim(const std::string& s) {
+    auto start = s.find_first_not_of(" \t");
+    if (start == std::string::npos) return "";
+    
+    auto end = s.find_last_not_of(" \t");
+    return s.substr(start, end - start + 1);
+}
+
+// 辅助函数：检查字符串是否以某个前缀开头
+bool starts_with(const std::string& s, const std::string& prefix) {
+    return s.size() >= prefix.size() && 
+           s.compare(0, prefix.size(), prefix) == 0;
+}
+
+// 辅助函数：分割字符串
+std::vector<std::string> split(const std::string& s, char delimiter) {
+    std::vector<std::string> tokens;
+    std::string token;
+    std::istringstream token_stream(s);
+    while (std::getline(token_stream, token, delimiter)) {
+        if (!token.empty()) {
+            tokens.push_back(token);
+        }
+    }
+    return tokens;
+}
+
+// URL 解码（简易实现）
+std::string url_decode(const std::string& str) {
+    std::string result;
+    for (size_t i = 0; i < str.size(); ++i) {
+        if (str[i] == '%' && i + 2 < str.size()) {
+            int hex_val;
+            if (sscanf(str.substr(i + 1, 2).c_str(), "%x", &hex_val) == 1) {
+                result += static_cast<char>(hex_val);
+                i += 2;
+            } else {
+                result += str[i];
+            }
+        } else if (str[i] == '+') {
+            result += ' ';
+        } else {
+            result += str[i];
+        }
+    }
+    return result;
+}
+
+// 解析 RFC 5987 编码（如 filename*=UTF-8''%C2%A3.txt）
+std::string decode_rfc5987(const std::string& value) {
+    size_t pos = value.find("''");
+    if (pos != std::string::npos) {
+        std::string encoded = value.substr(pos + 2);
+        return url_decode(encoded);
+    }
+    return value;
+}
+
+// 主解析函数
+std::string parse_attachment_filename_impl(const std::string& content_disp) {
+    std::vector<std::string> parts = split(content_disp, ';');
+    std::string filename;
+
+    for (auto& part : parts) {
+        std::string trimmed = trim(part);
+        
+        // 优先处理 RFC 5987 编码的 filename*
+        if (starts_with(trimmed, "filename*=")) {
+            std::string value = trimmed.substr(10);
+            if (value.size() >= 2 && value.front() == '"' && value.back() == '"') {
+                value = value.substr(1, value.size() - 2);
+            }
+            return decode_rfc5987(value);
+        }
+        
+        // 其次处理普通 filename
+        else if (starts_with(trimmed, "filename=")) {
+            std::string value = trimmed.substr(9);
+            if (value.size() >= 2 && value.front() == '"' && value.back() == '"') {
+                value = value.substr(1, value.size() - 2);
+            }
+            filename = value;
+        }
+    }
+
+    return filename;
+}