Merge branch 'string_utils' into tool-call

Author: Olivier Chafik

common/common.cpp

@@ -496,19 +496,19 @@ std::string string_join(const std::vector<std::string> & values, const std::stri
 }
 
 std::vector<std::string> string_split(const std::string & str, const std::string & delimiter) {
-    std::vector<std::string> tokens;
+    std::vector<std::string> parts;
     size_t start = 0;
     size_t end = str.find(delimiter);
 
     while (end != std::string::npos) {
-        tokens.push_back(str.substr(start, end - start));
+        parts.push_back(str.substr(start, end - start));
         start = end + delimiter.length();
         end = str.find(delimiter, start);
     }
 
-    tokens.push_back(str.substr(start));
+    parts.push_back(str.substr(start));
 
-    return tokens;
+    return parts;
 }
 
 std::string string_repeat(const std::string & str, size_t n) {