add in-memory processing

silly_decoder.cpp

@@ -0,0 +1,68 @@
+#include <iostream>
+#include <fstream>
+#include <vector>
+#include <string>
+#include <sstream>
+
+// Function that takes a list of indices and returns a single string 
+// concatenating the corresponding vocab entries.
+std::string processIndices(
+    const std::vector<int>& indices,
+    const std::vector<std::pair<int, std::string>>& vocab
+) {
+    std::ostringstream oss;
+    for (size_t i = 0; i < indices.size(); ++i) {
+        int idx = indices[i];
+        if (idx > 0 && idx <= static_cast<int>(vocab.size())) {
+            oss << vocab[idx - 1].second;
+        } else {
+            oss << "[Index " << idx << " out of range]";
+        }
+        
+        if (i != indices.size() - 1)
+            oss << "";
+    }
+    return oss.str();
+}
+
+int main(int argc, char* argv[]) {
+    if (argc < 2) {
+        std::cerr << "Usage: " << argv[0] << " index1,index2,...\n";
+        return 1;
+    }
+
+    std::ifstream file("vocab.txt");
+    if (!file) {
+        std::cerr << "Error opening file.\n";
+        return 1;
+    }
+
+    // Read vocab.txt and assign indices starting from 1.
+    std::vector<std::pair<int, std::string>> vocab;
+    std::string line;
+    int index = 1;
+    while (std::getline(file, line)) {
+        vocab.emplace_back(index++, line);
+    }
+    file.close();
+
+    // Convert CLI input into a list of indices.
+    std::vector<int> indices;
+    std::istringstream input(argv[1]);
+    std::string token;
+    while (std::getline(input, token, ',')) {
+        try {
+            indices.push_back(std::stoi(token));
+        } catch (const std::exception&) {
+            std::cerr << "Invalid index: " << token << '\n';
+        }
+    }
+
+    // Process the indices and retrieve the aggregated result as a single string.
+    std::string result = processIndices(indices, vocab);
+
+
+    std::cout << "Result: " << result << '\n';
+
+    return 0;
+}