diff --git a/C_C++/flex/scan_string.l b/C_C++/flex/scan_string.l
new file mode 100644
index 0000000..2c2013c
--- /dev/null
+++ b/C_C++/flex/scan_string.l
@@ -0,0 +1,15 @@
+/* @BAKE
+    flex -o scan_string.yy.c $@
+    gcc  -o scan_string.out  scan_string.yy.c
+    ./scan_string.out
+   @STOP
+ */
+%option noyywrap
+%%
+%%
+signed main() {
+    const char * input = "This is my input";
+    YY_BUFFER_STATE const b = yy_scan_string(input);
+    yylex();
+    yy_delete_buffer(b);
+}