+-- $Id: TO-DO,v 1.41 2002/08/31 21:32:43 tom Exp $
+
SHORT-TERM TO-DO ITEMS:
Known Problems:
+* GNAT does not put libraries in the correct order, so a build only links
+ properly if you use shared libraries since -lncurses is first.
+
* The screen optimization has been tested only in an ad hoc manner. We should
develop a good set of regression tests to cover lib_doupdate.c and
lib_mvcur.c.
-* Ncurses cursor movement does not make effective use of hard tabs, as SVr4
- does.
-
-* Scrolling optimization has holes: for example, the ncurses 'p' test, which
- exercises scrolling in a pad does not (1996/12/24) use scrolling regions.
- Also, running other tests shows that scrolling optimization forces repaints
- of the screen between calls to refresh().
+* Magic cookie support does not work, since the logic does not take into account
+ refresh. Also, the initial optimize does not adjust the current location
+ when a cookie is emitted.
-* The stacking order of windows on the screen does not match that implemented
- in SVr4 (e.g., Solaris curses). XSI doesn't specify a stacking order, so
- full compatibility for this behavior must be achieved by testing/analysis.
-
-* The ncurses 'o' test does not behave the same on SVr4 (Solaris) as with
- ncurses (the latter pops windows up more). The former also produces 20%
- fewer characters in a 'script' output. Further analysis is needed.
+* Scrolling optimization has holes: for example, it forces repaints of the
+ screen between calls to refresh().
* SVr4 uses slightly different rules for determining when softkeys are shown.
For example, they are initially displayed (before the ncurses 'e' test
activates them), and a touchwin can apparently also force them to be
displayed.
-* The code departs from perfect 8-bit cleanness in one respect; you cannot
++ The code departs from perfect 8-bit cleanness in one respect; you cannot
specify a character \200 as part of a capability string, because the terminfo
- library interprets \200 as a request to embed NUL (\000) at that point (the
- actual code that does this is in ncurses/lib_options.c:add_keytry().
- This is a legacy terminfo property we can't mess with.
-
-* Recognition of xterm mouse reports is implemented by setting the kmous
- capability to the mouse-report prefix. As a result, the kmous sequence is
- eaten even when mouse recognition is disabled. This could be fixed if
- necessary with special code that pokes the kmous value back into the
- input FIFO when KEY_MOUSE is seen and the mousemask is zero, but that would
- be kind of ugly.
+ library interprets \200 as a request to embed NUL (\000) at that point. This
+ is a legacy terminfo property we can't mess with.
* The window classes defined in the c++ subdirectory need documentation.
Some C++ programmer could earn a lot of good karma by doing this...
+* The resizeterm() function does not handle ripped-off lines such as that
+ done for the slk_XXX functions.
+
Portability (or lack thereof):
* Users of older System V UNIXes (but not Solaris, and probably not SVr4)
varargs.h, it has the newer X/Open-standard stdargs.h equivalent. So
these functions use stdargs instead. This is unlikely to be a problem
unless you're building ncurses on a System V old enough to only have
- varargs.h.
+ varargs.h. (Solaris 2.5.1 uses the stdarg.h binding as well).
* If you're using a BSD earlier than 4.4BSD, or a Linux old enough not to
have a native vsscanf(3) in its library, vwscanw() will not work. You lose.
* The demo build for the c++ library craps out with many link errors under gcc
2.6.3. We're told the C++ support in 2.6.3 is broken and that the right
- fix is to upgrade to 2.7.0.
+ fix is to upgrade to 2.7.0. This demo is also known to not build with
+ the Sun SPARCworks 4.1 C++ compiler, due to a problem resolving templates.
* Under Ultrix, configure craps out (Ultrix sh is lame). Run it under ksh.
Then, run "make mostlyclean", remove config.* from the top-level directory
and configure for the cross-compiler.
-Untested features:
++ terminfo.5 does not format with the SunOS (and most other platform's) tbl
+ utility because it relies on a diversion for each table entry. Get the groff
+ package.
-* The rep optimization in lib_doupdate.c is not yet thoroughly tested.
+Untested features:
* The code for the HP color model using set_color_pair is untested.
label_on, plab_norm, lab_f*) has not been tested. The label_format and
lab_f* capabilities aren't presently used.
+* The wide-character input functions need testing.
+
LONGER-TERM TO-DO ITEMS:
1. Extended COSE conformance
We would like to make ncurses fully conformant at the EXTENDED level
supporting internationalization.
-Here are page references to all material involving wide or multi-byte
-characters in Issue 4 of the XSI Curses standard, with notes on their
-status in this implementation:
-
- Page 1 (1.1.2) New Features discussion of internationalization.
- Page 12 (2.4): Definition of cchar_t, wchar_t.
- Page 16 (3.3.2): Introduction of multi-column characters.
- Page 17-18 (3.3.5): Description of non-spacing characters.
- Page 19-21 (3.4.2): Basic character operations.
- Page 34 (addnstr): These should now call underlying wide-
-character functions, and do (through waddnstr) if _XOPEN_SOURCE_EXTENDED is on).
- Page 35 (addnwstr): wide-character add-string functions. All macros
-except waddnwstr() which is not yet defined.
- Page 36 (add_wch): wide-character add-char functions. All macros
-except wadd_wch() which is not yet defined.
- Page 39 (attr_get): implemented -- we've just made the current-
-attributes field of the window an attr_t.
- Page 43 (bkgrnd): None of these are implemented.
- Page 45 (border_set): Neither of these is implemented.
- Page 47 (box_set): box_set implemented as macro, but the underlying
-wborder_set() is not yet defined.
- Page 78 (echo_wchar): echo_wchar() implemented as macro, underlying
-wecho_wchar() not yet implemented.
- Page 81 (erasechar): Neither entry point is implemented.
- Page 87 (getbkgrnd): Not implemented.
- Page 88 (getcchar): Not implemented.
- Page 93 (getn_wstr): All implemented (as macros) except the
-underlying wgetn_wstr().
- Page 97 (get_wch): All implemented (as macros) except the
-underlying wget_wch().
- Page 99 (get_wstr): Xref to page 93.
- Page 105 (hline_set): All implemented (as macros) except the
-underlying whline_set(), wvline_set().
- Page 114 (innstr): Multi-byte character-completeness check is
-not implemented.
- Page 115 (innwstr): All implemented (as macros) except the
-underlying winnw_str().
- Page 119 (insnstr): Implementation may not be correct for multi-byte
-characters.
- Page 120 (ins_nwstr): Not implemented.
- Page 121 (insstr): Xref to page 119.
- Page 122 (instr): Xref to page 119.
- Page 123 (ins_wch): Not implemented.
- Page 124 (ins_wstr): Xref to page 120.
- Page 126 (in_wch): Not implemented.
- Page 127 (in_wchnstr): Not implemented.
- Page 128 (inwstr): Xref to page 115.
- Page 133 (killwchar): killwchar not implemented.
- Page 158 (pechochar): pecho_wchar() not implemented.
- Page 176 (setcchar): Not implemented.
- Page 181 (slk_attroff): slk_wset not implemented.
- Page 200 (ungetch): unget_wch() not implemented.
- Page 203 (vidattr): vid_attr() and vid_puts() not implemented.
- Page 206 (vline_set): Xref to page 105.
- Page 214 (wunctrl): Not implemented.
- Page 216 (curses.h): cchar_t, wint_t, wchar_t references.
- Page 220 (curses.h): KEY_CODE_YES
-
-Basically, the macro superstructure is there but the core is absent. We
-need better multi-locale support guarantees from the OS to finish this.
-If you are working on internationalization support, please contact us so
-we can cooperate.
+Current status:
+ pecho_wchar() not implemented.
+ slk_wset not implemented.
2. DOS port
projects / ncurses.git / blobdiff