Working on backing files.

Also started a sketches project to illustrate quick ideas.

sketches/CMakeLists.txt

@@ -0,0 +1,35 @@
+cmake_minimum_required(VERSION 3.25)
+
+project(ke_sketches
+        DESCRIPTION "sketches and small test programs for kyle's editor"
+        LANGUAGES CXX
+        VERSION 0.0.1)
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_VERBOSE_MAKEFILES TRUE)
+set(VERBOSE YES)
+
+if (MSVC)
+    add_compile_options("/W4" "$<$<CONFIG:RELEASE>:/O2>")
+else ()
+    add_compile_options(
+            "-Wall"
+            "-Wextra"
+            "-Werror"
+            "-static"
+            "$<$<CONFIG:DEBUG>:-g>"
+            "$<$<CONFIG:RELEASE>:-O2>")
+    if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
+        add_compile_options(
+                "-stdlib=libc++"
+                "-fsanitize=address"
+                "-fno-omit-frame-pointer"
+                "-fsanitize-address-use-after-scope"
+        )
+    else ()
+        # nothing special for gcc at the moment
+    endif ()
+endif ()
+
+add_executable(readFile ReadFile.cc)
+add_executable(enoent enoent.cc)