make functions inline & handle input from stdout

src/main.cc

@@ -6,16 +6,17 @@
 #include <cctype>
 #include <xcdat.hpp>
 #include <utility>
+#include <unistd.h>
 
 // Struct to hold the view and id of each entry
 struct Entry {
     std::string_view decoded_view;
     uint64_t id;
-    Entry(std::string_view decoded_view, uint64_t id) : decoded_view(decoded_view), id(id) {}
+    inline Entry(std::string_view decoded_view, uint64_t id) : decoded_view(decoded_view), id(id) {}
 };
 
 // Function to remove one UTF-8 character and return the character along with the new string
-std::pair<std::string, std::string> remove_one_utf8_char(const std::string& str) {
+inline std::pair<std::string, std::string> remove_one_utf8_char(const std::string& str) {
     if (str.empty()) {
         return {"", str};
     }
@@ -37,13 +38,41 @@ std::pair<std::string, std::string> remove_one_utf8_char(const std::string& str)
     return {"", ""};
 }
 
-int main(int argc, char* argv[]) {
+// Function to check input from command line or piped input
+inline std::string get_input(int argc, char* argv[]) {
+    std::string search_string;
+    
+    if (!isatty(fileno(stdin))) { // If input is piped
+        std::getline(std::cin, search_string);
+    } else { // If input is provided as command line argument
         if (argc < 2) {
-        std::cerr << "Usage: " << argv[0] << " <search_string> [--debug] [--dict <path_to_dictionary>]" << std::endl;
+            std::cerr << "Usage: " << argv[0] << " <search_string>" << std::endl;
-        return 1;
+            exit(1);
         }
 
-    std::string search_string;
+        for (int i = 1; i < argc; ++i) {
+            if (std::strcmp(argv[i], "--debug") == 0) {
+                // Handle debug mode
+            } else if (std::strcmp(argv[i], "--dict") == 0 && i + 1 < argc) {
+                // Skip the next argument as it's the dictionary file path
+                i++;
+            } else {
+                search_string = argv[i];
+                break;
+            }
+        }
+    }
+    
+    if (search_string.empty()) {
+        std::cerr << "Search string not provided." << std::endl;
+        exit(1);
+    }
+    
+    return search_string;
+}
+
+int main(int argc, char* argv[]) {
+    std::string search_string = get_input(argc, argv);
     bool debug_mode = false;
     std::string dict_file = "dict.bin"; // Default dictionary file path
 
@@ -54,16 +83,9 @@ int main(int argc, char* argv[]) {
         } else if (std::strcmp(argv[i], "--dict") == 0 && i + 1 < argc) {
             dict_file = argv[i + 1];
             i++; // Skip the next argument as it's the dictionary file path
-        } else {
-            search_string = argv[i];
         }
     }
 
-    if (search_string.empty()) {
-        std::cerr << "Search string not provided." << std::endl;
-        return 1;
-    }
-
     std::string raw_output;
     const auto trie = xcdat::load<xcdat::trie_15_type>(dict_file);