===================================================================
RCS file: /cvs/mandoc/TODO,v
retrieving revision 1.202
retrieving revision 1.203
diff -u -p -r1.202 -r1.203
--- mandoc/TODO	2015/03/11 13:11:22	1.202
+++ mandoc/TODO	2015/03/16 14:51:14	1.203
@@ -1,6 +1,6 @@
 ************************************************************************
 * Official mandoc TODO.
-* $Id: TODO,v 1.202 2015/03/11 13:11:22 schwarze Exp $
+* $Id: TODO,v 1.203 2015/03/16 14:51:14 schwarze Exp $
 ************************************************************************
 
 Many issues are annotated for difficulty as follows:
@@ -104,6 +104,19 @@ are mere guesses, and some may be wrong.
   would not be very useful without an expression parser, see below
   needed for Tcl_NewStringObj(3) via wiz@  Wed, 5 Mar 2014 22:27:43 +0100
   loc **  exist ***  algo ***  size *  imp ***
+
+- \\ in high-level macro arguments
+  Currently, \\ is expanded in two situations:
+  1) macro and string definition (roff.c setstrn())
+  2) macro argument parsing (mandoc.c mandoc_getarg())
+  For user defined macros, the second happens in time because of ROFF_REPARSE.
+  But for standard high-level macros, it only happens after entering the
+  high level parsers, which is too late because the code doesn't get
+  back to roff.c roff_res() from that point.  Because this requires
+  distinguishing requests, user-defined macros and standard macros
+  on the roff_res() level, it is hard to solve without the parser reorg.
+  Found by naddy@ in devel/cutils cobfusc(1)  Mon, 16 Feb 2015 19:10:52 +0100
+  loc ***  exist ***  algo ***  size **  imp *
 
 - using undefined strings or macros defines them to be empty
   wl@  Mon, 14 Nov 2011 14:37:01 +0000