testing working, and fixed memory leak in replace with substring function

CMakeLists.txt

@@ -3,6 +3,8 @@ cmake_minimum_required(VERSION 3.25)
 set(ARCHEUS_STD_VERSION 0.0.0)
 project(archeus_std LANGUAGES C VERSION ${ARCHEUS_STD_VERSION} DESCRIPTION "libarcheus_std standard archeus c library")
 
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+
 include(GNUInstallDirs)
 
 function(print var)
@@ -23,6 +25,7 @@ add_compile_options(
 
 # ~ OPTIONS ~ #
 option(ARCHEUS_STD_DEFAULT_CONFIG "Build with default config keys" ON)
+option(ARCHEUS_STD_TESTS "Build with tests" OFF)
 
 set(ARCHEUS_STD_CONSOLE_BACKEND "NONE" CACHE STRING "Console Backend to build with")
 set_property(CACHE ARCHEUS_STD_CONSOLE_BACKEND PROPERTY STRINGS NONE NCURSES)
@@ -59,6 +62,7 @@ set(ARCHEUS_STD_SOURCES
     src/std/handler.c
     src/std/hashtable.c
     src/std/io.c
+    src/std/lexer.c
     src/std/queue.c
     src/std/stack.c
     src/std/string.c
@@ -79,15 +83,6 @@ set(ARCHEUS_STD_SOURCES
     src/engine/state.c
 )
 
-#TODO: add this
-#add_executable(tests
-#    tests/test.c
-#
-#    tests/std/vector.c
-#
-#    ${ARCHEUS_STD_SOURCES}
-#)
-
 if(CMAKE_BUILD_TYPE STREQUAL "Debug")
     string(APPEND ARCHEUS_STD_FLAGS "-Wall -Werror -g -ggdb -DARC_DEBUG ")
 endif()
@@ -127,6 +122,21 @@ libssh_check_and_init_needed(ARCHEUS_STD_FLAGS ARCHEUS_STD_SOURCES ${ARCHEUS_STD
 
 set(CMAKE_C_FLAGS ${ARCHEUS_STD_FLAGS})
 
+if(ARCHEUS_STD_TESTS)
+    add_executable(tests
+        tests/test.c
+
+        #tests/std/vector.c
+        tests/std/lexer.c
+
+        ${ARCHEUS_STD_SOURCES}
+    )
+
+    target_compile_options(tests PUBLIC "-DARC_DEBUG_LOG_STREAM_OVERRIDE")
+    target_include_directories(tests ${ARCHEUS_STD_INCLUDE_DIRECTORIES})
+    target_link_libraries(tests ${ARCHEUS_STD_LINK_LIBRARIES})
+endif()
+
 if(WIN32 AND NOT MSVC)
     add_library(archeus_std STATIC ${ARCHEUS_STD_SOURCES})
 else()