* missing features
************************************************************************
+- .` "macro" not implemented (see gnu/usr.bin/cvs/man/cvs.1)
+ found by Anthony Bentley (anthonyjbentley@gmail.com)
+ 06/01/10 23:48 on tech@openbsd
+
- explicit blocks with missing end macro should be implicitely closed
at the end of the enclosing block, e.g. .Bl It (El) Sh
reminded by stsp@ in net/pptp pptp.8 Fri, 23 Apr 2010 20:32:39 +0200
noticed by espie@ Fri, 23 Apr 2010 17:10:35 +0200
NEEDS MERGING TO bsd.lv
+- implement blank `Bl -column', such as
+ .Bl -column
+ .It foo Ta bar
+ .El
+
+- explicitly disallow nested `Bl -column', which would clobber internal
+ flags defined for struct mdoc_macro
+
+- set a meaningful default if no `Bl' list type is assigned
+- have a blank `It' head for `Bl -tag' not puke
+
************************************************************************
* formatting issues: ugly output
************************************************************************
- OpenBSD::PackageName(3p) has "if (block) 90:1" in the parse tree
+************************************************************************
+* performance issues
+************************************************************************
+
+Several areas can be cleaned up to make mandoc even faster. These are
+
+- cache `Bd' display types as `Bl' types are cached (this primarily
+ improves code-size by removing the a2disp type functions)
+
+- improve caching mechanism to handle other per-element arguments so
+ that they need not be recalculated between front- and back-ends (also
+ reduces code size and complexity)
+
+- improve hashing mechanism for macros (quite important: performance)
+
+- improve hashing mechanism for characters (not as important)