Internal debug option -d lex is not described

The Internal debug option -d lex had not been described.
doxygen · Mar 15, 2015 · ebe3e8e · ebe3e8e
1 parent 9537515
commit ebe3e8e
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/src/doxygen.md b/src/doxygen.md
@@ -168,6 +168,10 @@ easy ways to get debug information.
     command is specified)
   - validate<br>
     Currently not used
+  - lex<br>
+    Provide output of the `lex` files used. When a lexer ais started and when a lexer
+    ends the name of `lex` file is given so it is possible to see in which lexer the
+    problem occurs. This makes it easier to select the file to be compiled in `lex` debug mode.
 
 Producing output
 ----------------