diff options
Diffstat (limited to 'contrib/ncurses/TO-DO')
| -rw-r--r-- | contrib/ncurses/TO-DO | 193 |
1 files changed, 73 insertions, 120 deletions
diff --git a/contrib/ncurses/TO-DO b/contrib/ncurses/TO-DO index 21e8ee0ca9eb..6834e0380b37 100644 --- a/contrib/ncurses/TO-DO +++ b/contrib/ncurses/TO-DO @@ -1,87 +1,103 @@ --- $Id: TO-DO,v 1.39 1998/07/12 00:25:39 tom Exp $ +------------------------------------------------------------------------------- +-- Copyright (c) 1998-2005,2006 Free Software Foundation, Inc. -- +-- -- +-- Permission is hereby granted, free of charge, to any person obtaining a -- +-- copy of this software and associated documentation files (the -- +-- "Software"), to deal in the Software without restriction, including -- +-- without limitation the rights to use, copy, modify, merge, publish, -- +-- distribute, distribute with modifications, sublicense, and/or sell copies -- +-- of the Software, and to permit persons to whom the Software is furnished -- +-- to do so, subject to the following conditions: -- +-- -- +-- The above copyright notice and this permission notice shall be included -- +-- in all copies or substantial portions of the Software. -- +-- -- +-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -- +-- OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -- +-- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -- +-- NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -- +-- DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -- +-- OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -- +-- USE OR OTHER DEALINGS IN THE SOFTWARE. -- +-- -- +-- Except as contained in this notice, the name(s) of the above copyright -- +-- holders shall not be used in advertising or otherwise to promote the -- +-- sale, use or other dealings in this Software without prior written -- +-- authorization. -- +------------------------------------------------------------------------------- +-- $Id: TO-DO,v 1.48 2006/10/28 19:49:16 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. ++ libtool does not work with GNAT. -* XPG4 specifies that the enhanced features are not available unless the - _XOPEN_SOURCE_EXTENDED test macro is defined by the application. Ncurses uses - this macro (incorrectly) to address a dependency upon wchar_t. The functions - which use wchar_t are not implemented, so the effect of the test macro is - pointless. - -* The screen optimization has been tested only in an ad hoc manner. We should ++ 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. -* 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. ++ Magic cookie support (for nonzero xmc values) 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. -* Scrolling optimization has holes: for example, it forces repaints of the ++ 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. ++ 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 - 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. This - is a legacy terminfo property we can't mess with. + 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. 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 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. + ++ vid_attr() should support the set_a_attributes (sgr1) string, but does not. + There appear to be no terminals that require that functionality. Portability (or lack thereof): -* Users of older System V UNIXes (but not Solaris, and probably not SVr4) - may trip over a known problem with the signal-handling code which causes - abrupt termination of ncurses applications following resume from a ^Z - suspend (this problem was first seen running lynx). You will not see - this problem if you are running Linux or one of the 4.4BSD derivatives - like FreeBSD, NetBSD, or BSDI. For details, see the analysis in the - header comment of ncurses/lib_tstp.c. ++ Users of older System V UNIXes (but not Solaris, and probably not SVr4) may + trip over a known problem with the signal-handling code which causes abrupt + termination of ncurses applications following resume from a ^Z suspend (this + problem was first seen running lynx). You will not see this problem if you + are running Linux or one of the 4.4BSD derivatives like FreeBSD, NetBSD, or + BSDI. For details, see the analysis in the header comment of + ncurses/tty/lib_tstp.c . -* In theory, vwprintw and vwscanf are supposed to use the older varargs.h ++ In theory, vwprintw and vwscanf are supposed to use the older varargs.h interface for handling variadic argument lists. Linux doesn't have - 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. (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. - (It should work on any System V, however). If you want to fix this, add - an implementation to ncurses/vsscanf.c. - -* 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. 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. - -* We've not tested the configure script with cross-compilers. The autoconf - tests are supposed to be able to support this (please report bugs). You will - have to configure and build in two steps. The first step must create the - automatically-generated sources (e.g., comp_captab.c) on your host machine. - Then, run "make mostlyclean", remove config.* from the top-level directory - and configure for the cross-compiler. + 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. + (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. (It + should work on any System V, however). If you want to fix this, add an + implementation to ncurses/vsscanf.c. + ++ The C++ binding fails to build with a few C++ compilers, mainly with + configure script problems with vsscanf(). + 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. + utility because it relies on a diversion for each table entry. Get the + groff package. Untested features: -* The code for the HP color model using set_color_pair is untested. ++ The code for the HP color model using set_color_pair is untested. -* The code for handling soft labels on a terminal type with built-in support ++ The code for handling soft labels on a terminal type with built-in support for them (num_labels > 0, label_height, label_width, label_format, label_off, label_on, plab_norm, lab_f*) has not been tested. The label_format and lab_f* capabilities aren't presently used. @@ -95,72 +111,9 @@ of the SVr4 API. The library is BASE conformant with this standard. 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. - 2. DOS port -Only 16 of the 55 files in the library depend on the terminfo format. +Only a few of the files in the library depend on the terminfo format. It should be possible to further kernelize the package, then rewrite a small number of core files to produce a functionally-compatible port that would do updates to a memory-mapped screen area. The first @@ -248,4 +201,4 @@ These are the potentially important ones for ncurses. Notes: ii) We probably don't care about dest_tabs_magic_smso; only Telerays used it and they're all long obsolete. - +-- vile:txtmode |