- EMODE support doesn't work fine yet.
- This code is broken for dreamcast.
dramcast call sh4_icache_sync_all() before sh4_cache_config().
(at locore.S)
The C code is a complete rewrite done by Guy Harris for 4.4BSD and is
not the original from v7 at all. Unfortunately, the data file itself,
without which the rest isn't useful, was not freed until Caldera
released all of 32v a few years ago, so it was not in 4.4lite.
The data file, the ching nroff macros, and the driver script are under
Caldera or Caldera+Berkeley copyright.
I've partially redone the driver script from 4.4 (there was no point
in using a temporary file for the hexagram), which was already
partially redone from 32v. (As an aside, it is nutty that the script
needs a copyright so many times longer than the code.)
I've renamed "cno" to "castching", "phx" to "printching", (the
traditional names were opaque), and put them in /usr/libexec/ching
instead of the v7 /usr/games/ching.d. The data file and nroff macros
are in /usr/share/games/ching
This code came originally from v7/32v and thence from 4.4BSD. It was
freed by Caldera. Todd Miller cleaned up and ANSIfied the code, and
then changed it to use the mmap/binary search algorithm for looking up
words in the dictionary that look(1) uses, replacing the hash based
lookups which were faster but broken by the size of the current
dictionary.
I've done a teeny bit of additional cleanup and replaced Todd's ksh
spell(1) script with a /bin/sh script, and re-structured the code to
follow the bsd makefile way, with one executable per directory.
I also added a TODO list recommending a bunch of kinds of cleanup.
The code is, frankly, awful. It was fine in the 1970s, a time of much
more limited resources and tastes, but the world has moved on a bunch
since then. The reason for pulling this in at all is that it will make
it much easier to check in-tree documentation for spelling errors
automatically.
The code came from 32v and then 4.4BSD. After the code was freed by
Caldera, it was cleaned up and ANSIfied by Todd Miller for OpenBSD.
I've added a TODO with several items on it, basically code cleanup and
adding support for mdoc. As it stands, this won't yet pass WARNS=1.
snj