String buffer

CMakeLists.txt

@@ -9,6 +9,8 @@ option(BUILD_NBT "Build the BLT NBT + eNBT extension" ON)
 option(BUILD_TESTS "Build the BLT test set" OFF)
 option(BLT_ENABLE_LOGGING "Enable blt::logging" ON)
 
+configure_file(include/blt/config.h.in config/blt/config.h @ONLY)
+
 if(${BUILD_STD} OR ${BUILD_PROFILING})
     file(GLOB_RECURSE STD_FILES "${CMAKE_CURRENT_SOURCE_DIR}/src/blt/std/*.cpp")
 else()
@@ -44,8 +46,6 @@ message("Profiler Files ${PROFILING_FILES}")
 message("Source: ${CMAKE_SOURCE_DIR}")
 message("Current Source: ${CMAKE_CURRENT_SOURCE_DIR}")
 
-configure_file(include/blt/config.h.in config/blt/config.h @ONLY)
-
 add_library(BLT ${STD_FILES} ${PROFILING_FILES} ${NBT_FILES})
 
 target_include_directories(BLT PUBLIC include/)

include/blt/std/string.h

@@ -16,6 +16,30 @@
 
 namespace blt::string {
     
+    class StringBuffer {
+        private:
+            const size_t BLOCK_SIZE = 4096;
+            size_t front = 0;
+            size_t size = 0;
+            char* characterBuffer = nullptr;
+            
+            void expand();
+        public:
+            void trim();
+            std::string toString();
+            
+            StringBuffer(){
+                characterBuffer = static_cast<char*>(malloc(BLOCK_SIZE));
+                size = BLOCK_SIZE;
+            }
+            
+            StringBuffer& operator<<(char c);
+            
+            ~StringBuffer() {
+                free(characterBuffer);
+            }
+    };
+    
     static inline bool starts_with(const std::string& string, const std::string& search){
         if (search.length() > string.length())
             return false;
@@ -153,6 +177,7 @@ namespace blt::string {
         trim(s);
         return s;
     }
+    
 }
 
 #endif //BLT_STRING_H

src/blt/std/string.cpp

@@ -0,0 +1,29 @@
+//
+// Created by brett on 7/9/23.
+//
+#include <blt/std/string.h>
+
+void blt::string::StringBuffer::expand() {
+    size_t multiplier = size / BLOCK_SIZE;
+    auto newSize = BLOCK_SIZE * (multiplier * 2);
+    characterBuffer = static_cast<char*>(realloc(characterBuffer, newSize));
+    size = newSize;
+}
+
+void blt::string::StringBuffer::trim() {
+    characterBuffer = static_cast<char*>(realloc(characterBuffer, front+1));
+    size = front+1;
+    characterBuffer[front] = '\0';
+}
+
+blt::string::StringBuffer& blt::string::StringBuffer::operator<<(char c) {
+    characterBuffer[front++] = c;
+    if (front > size)
+        expand();
+    return *this;
+}
+
+std::string blt::string::StringBuffer::toString() {
+    trim();
+    return std::string{characterBuffer};
+}