The blank symbol set can be used with screen reader software
to prevent it from reading the map symbols.
Prevent a segfault when looking at the map and many symbols
share the same character. Don't list too many symbols when
looking at those, if many share the same character.
I don't know whether this fixes #H4335 but it does eliminate a
bunch of duplicate symbol entries. And the two whose duplicates
had different values are suspicious ones: using linefeed and tab as
the character for object class symbol, which could easily confuse
the tty interface's cursor position tracking. But those should
have been overridden by the later entries which specified the
default object class characters--I couldn't find anything in symbol
processing which would cause it to keep the first value instead of
replacing that with the second one.
The report had a link to screen shot which showed a door (I think
an open one despite the '+' shape) in the corner inside a room,
something like
--+-----------
| |
| =
| ..##
| .+#
----+---------
where the '+#' in the lower right looks like it belongs two rows up
and one column over, the upper left of the three '#' is white and
the other two gray (lit corridor or empty dooryway or what?), the
'=' is actually three horizontal bars in green, and the lower '.'
has the cursor on it. There aren't any object class symbols shown
(unless the triple-barred = is one), so linefeed and tab don't look
like likely culprits.
This set is the same as the default ascii symbols except that corner
walls are represented with '+' instead of '-' or '|' so that wall
joins are clearer. The baalz level looks a little better this way,
although not a lot. Unfortunately, most levels look a bit cluttered
with this, so I imagine it won't get a lot of use. At least it
serves as an example of being able to use "'c'" instead of "\123".
Originally I specified every terrain symbol explicitly, which was
how I noticed that S_darkroom and S_vibrating_square weren't being
handled. This has cut it down to just the wall symbols, serving as
explicit example of accepting default symbols for unspecified ones.
This reverts commit 7f0f43e6f9 and some related
subsequent commits.
This compiles, but I have not done extensive testing.
Conflicts:
include/config.h
include/decl.h
include/extern.h
include/global.h
include/tradstdc.h
include/wintty.h
src/drawing.c
src/files.c
src/hacklib.c
src/mapglyph.c
src/options.c
sys/winnt/nttty.c
win/tty/getline.c
win/tty/topl.c
win/tty/wintty.c
This patch attempts to add some levels of unicode support
to NetHack.
The master on/off switch for any Unicode support is
defining UNICODE_SUPPORT in config.h. Currently
there is code support for two subsets of unicode support:
UNICODE_DRAWING
If UNICODE_DRAWING is defined, then the data
structures used to house drawing symbols are expanded
to the size of wchar_t, big enough to hold unicode characters.
A typdef called `nhsym' is involved and if UNICODE_DRAWING
is defined, it is wchar_t, otherwise it is uchar.
UNICODE_WIDEWINPORT
If UNICODE_WIDEWINPORT is defined, then the data
structures inside the window port are expanded to the size of
wchar_t, big enough to hold unicode characters. Both map
symbols and text within the window port are expanded, in order
for potential support for displaying multinational characters some
day, but this patch only provides viewing of map symbols.
A typdef called `nhwchar' is involved and if UNICODE_WIDEWINPORT
is defined, it is wchar_t, otherwise it is char.
The only window port with code support for UNICODE_WIDEWINPORT
currently is the TTY port. Don't enable UNICODE_WIDEWINPORT
unless:
- it is a TTY port
- the underlying platform specific routines can
handle the larger data structures.
Don't enable UNICODE_SUPPORT unless:
- your compiler can handle wchar_t.
- your compiler can accept L'a' characters.
- your compiler can accept L"wide" strings.
Note that if your compiler can handle the above, you could
enable the larger data structures (currently if TTY) even if your
platform can't actually display unicode or UTF-8, by messing
with u_putch() in win/tty/wintty.c to only deal regular chars.
That should be the only function that actually pushes wide characters
out to the display.
If you enable UNICODE_SUPPORT, and your platform is capable
you will need to turn on the unicode run-time option to be able to
load unicode character sets from the symbol file, to be able to
push unicode characters to the display. You'll also want to load
a unicode symbol set once the unicode option is toggled on. In
a config file you would do that via these two lines:
OPTIONS=unicode
OPTIONS=symset:Unicode_non_US
The repository was stamped with NETHACK_PRE_UNICODE
prior to applying this patch, and stamped with
NETHACK_POST_UNICODE afterwards. The code differences
between those two tagged versions are this patch.
Pat Rankin wrote:
> I was about to also suggest that there
> be a rogue/non-rogue (with perhaps a third choice meaning "both")
> attribute. That way we could keep the rogue choices from being
> listed in the "symset" menu and the non-rogue choices from the
> "roguesymset" menu. Players who deliberately wanted to switch
> over would need to modify the attribute, possibly on a cloned set.
> Or perhaps they could just explicitly set their desired choices
> via NETHACKOPTIONS or .nethackrc and not use the 'O' menues--the
> new attribute doesn't necessary have to block which sets get used
> where, just filter menu entries to display the most applicable
> candidates.
Pat Rankin wrote:
> Symbol set definitions need a description attribute, above and
> beyond allowing comments in the file, for inclusion in the 'O'
> command's menu entries for selecting them.
[...]
> mapglyph.c isn't the proper place to decide whether to define
> ROGUE_COLOR. That may need to become a symbol attribute,
> which we'd then specify on the Epyx rogue set(s).
Implement both of the suggestions above.
A first cut at adding some user-level documentation to dat/symbols.
It should probably include a brief example (not verbose description) of
how to specify values in the various supported formats (decimal, octal,
hexadecimal, simple string, string including escape sequeces?). Perhaps
a pointer to the Guidebook too. :-}
This takes the PC config file commented symbol value
recommendations from <Someone> for blind players
and puts them into a symset.
[note to devteam: They look odd. I thought perhaps that
something was code wrong, but I went back to 3.4.3
and uncommented the config file stuff. They look the
same there, still odd, especially corridors.
Does anyone have any of the e-mail from <Someone> that might give an indication of what is supposed
to be seen on the display? I wonder if those config
file options fell out of synch with the code long ago]
