===================================================================
RCS file: /cvs/mandoc/TODO,v
retrieving revision 1.201
retrieving revision 1.203
diff -u -p -r1.201 -r1.203
--- mandoc/TODO	2015/02/20 13:47:28	1.201
+++ mandoc/TODO	2015/03/16 14:51:14	1.203
@@ -1,6 +1,6 @@
 ************************************************************************
 * Official mandoc TODO.
-* $Id: TODO,v 1.201 2015/02/20 13:47:28 schwarze Exp $
+* $Id: TODO,v 1.203 2015/03/16 14:51:14 schwarze Exp $
 ************************************************************************
 
 Many issues are annotated for difficulty as follows:
@@ -105,6 +105,19 @@ are mere guesses, and some may be wrong.
   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
   loc *  exist *  algo *  size *  imp *
@@ -556,6 +569,11 @@ Several areas can be cleaned up to make mandoc even fa
 ************************************************************************
 * structural issues
 ************************************************************************
+
+- Improve -O suboption parsing.  Do it in the main program such that
+  errors can be reported.  Pay attention to distinguishing the
+  mandoc(1) and apropos(1) styles of both options.
+  loc **  exist *  algo **  size **  imp ***
 
 - Use libz directly instead of forking gunzip(1).
   Suggested by bapt at FreeBSD among others.