-- $Id: TO-DO,v 1.43 2004/02/08 21:09:00 tom Exp $SHORT-TERM TO-DO ITEMS:Known Problems:* The form/menu libraries do not use wide-character features.* Some users would like to build a single version of libtinfo which can be  used from either libncursesw or libncurses.* libtool does not work with GNAT.* 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.* 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  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 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)  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  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 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.Untested features:* 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  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.LONGER-TERM TO-DO ITEMS:1. Extended COSE conformanceThere is an XPG4 standard recently released which describes a supersetof the SVr4 API.  The library is BASE conformant with this standard.We would like to make ncurses fully conformant at the EXTENDED levelsupporting internationalization.2. DOS portOnly 16 of the 55 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-compatibleport that would do updates to a memory-mapped screen area.  The firstresult of this would be a DOS port.3. X portIt would be nice if ncurses could recognize when it was running under X andmaintain its own window.  With this feature, all ncurses programs wouldautomatically become X programs.  The challenge is to handle resize eventsproperly.4. Unused capabilitiesThe currently unused capabilities fall naturally into several groups:A. Status-line capabilities:	Booleans: has_status_line, status_line_esc_ok.	Numerics: width_status_line.	Strings: dis_status_line, from_status_line, to_status_line.System V Release 1 curses made no use of these at all.  SVr4's use, ifany, is unknown.  From the AT&T termcap file it looks like curses, in general,shouldn't use them; terminal variants with status lines have their line countdecremented by 1, suggesting that curses is supposed to leave the status linealone.B. Printer capabilities:	Boolean: col_addr_glitch, cr_cancels_micro_mode, has_print_wheel,		row_addr_glitch, semi_auto_right_margin, cpi_changes_res,		lpi_changes_res.	Numeric: buffer_capacity, dot_horz_spacing, dot_vert_spacing,		max_micro_address, max_micro_jump, micro_col_size,		micro_line_size, number_of_pins, output_res_char,		output_res_line, output_res_horz_inch, print_rate,		wide_char_size, bit_image_entwining, bit_image_type.	String: down_half_line, form_feed, up_half_line, set_left_margin,		set_right_margin, clear_margins, change_char_pitch		... set_page_length (all the SVr4 printer caps),Curses doesn't use these.C. Printer-control capabilities:	Boolean: prtr_silent.	Strings: print_screen, prtr_on, prtr_off, prtr_non.Curses doesn't use these.D. Dialer strings:	Strings: hangup, dial_phone, quick_dial, tone, pulse, flash_hook,		fixed_pause, wait_tone.Curses doesn't use these.E. Window and virtual-terminal capabilities:	Numerics: maximum_windows, virtual_terminal.	Strings: req_for_input, create_window, goto_window, set_window.These seem to be fossils from some AT&T experiments on character-basedwindow systems that never escaped the lab.  The virtual_terminal cap hadsomething to do with building terminal emulations into tty line disciplines.F. Unused VDT capabilities:	Booleans: erase_overstrike, has_meta_key, insert_null_glitch,		move_insert, dest_tabs_magic_smso, transparent_underline,		needs_xon_xoff, hard_cursor.	Numerics: lines_of_memory, buttons.	Strings: pkey_key, pkey_local, pkey_xmit, underline_char, 		enter_xon_mode,	exit_xon_mode, xon_character, xoff_character, 		display_clock, remove_clock, user[0-5], display_pc_char,		enter_scancode_mode, exit_scancode_mode, pc_term_options, 		scancode_escape, alt_scancode_esc.These are the potentially important ones for ncurses.  Notes:	i) ncurses doesn't need move_insert; it never uses cup/hpa/vpa while		insert_mode is on.	ii) We probably don't care about dest_tabs_magic_smso; only		Telerays used it and they're all long obsolete.