/* Curses.c ** ** Copyright (c) 1994-2000 William Setzer ** ** You may distribute under the terms of either the Artistic License ** or the GNU General Public License, as specified in the README file. */ #include "CursesDef.h" #include "CursesTyp.h" #include "c-config.h" /* c-config.h above includes Ncurses header files that define macro 'instr'. Unfortunately, perl.h (below) also defines 'instr'. Fortunately, we don't need the Curses version -- we use winstr(stdscr, ...) instead. So we undef instr here to avoid a compiler warning about the redeclaration. Similarly, c-config.h may define a macro "tab", while the word "tab" is used in perl.h another way, so we undefine it to avoid a nasty syntax error. "term.h" pollutes the name space with hundreds of other macros too. We'll probably have to add to this list; maybe someday we should just undef them all, since we don't use them. "bool" is another, and is more problematic. Sometimes, ncurses.h defines that explicitly and that's bad, but sometimes it does it by including , and that's fine. In the former case, we should undefine it now, but in the latter we can't, because then a subsequent #include (by something we #include below) won't define bool because stdbool.h has already been included. We're going to leave bool alone now and wait for someone to report that it breaks something. With a real example, we can then plan how to work around this unfortunate ncurses.h behavior. We once had a #undef bool.h in the Mac OSX hints file, so someone presumably found it necessary. But we have also had a Mac OSX system on which compile failed _because_ of that undef, for the reason described above. */ #undef instr #undef tab #include /* Needed by */ #include #include /* I don't know why NEED_sv_2pv_flags is necessary, but ppport.h doesn't work right without it. Maybe a bug in Devel::PPPort? */ #define NEED_sv_2pv_flags #include "ppport.h" #ifndef C_PANELSUPPORT # define PANEL int #endif #ifndef C_MENUSUPPORT # define MENU int # define ITEM int #endif #ifndef C_FORMSUPPORT # define FORM int # define FIELD int #endif /* Before 1.17 (September 2007), we undefined macro 'SP' here, for the Pdcurses case only. I don't know why, but it caused the build with Pdcurses to fail, so we took it out. 'SP' is defined in Perl's CORE/pp.h via our inclusion of perl.h above. */ /* What a mess. :( */ #ifndef PERL_VERSION # define PL_sv_undef sv_undef # define PL_sv_yes sv_yes #endif /* ** Begin support variables and functions */ static char *c_function; static int c_win, c_x, c_arg; static void c_countargs(fn, nargs, base) char *fn; int nargs; int base; { switch (nargs - base) { case 0: c_win = 0; c_x = 0; c_arg = 0; break; case 1: c_win = 1; c_x = 0; c_arg = 1; break; case 2: c_win = 0; c_x = 1; c_arg = 2; break; case 3: c_win = 1; c_x = 2; c_arg = 3; break; default: croak("Curses function '%s' called with too %s arguments", fn, nargs < base ? "few" : "many"); } c_function = fn; } static void c_exactargs(fn, nargs, base) char *fn; int nargs; int base; { if (nargs != base) croak("Curses function '%s' called with too %s arguments", fn, nargs < base ? "few" : "many" ); c_function = fn; } static int c_domove(win, sv_y, sv_x) WINDOW *win; SV *sv_y; SV *sv_x; { int y = (int)SvIV(sv_y); int x = (int)SvIV(sv_x); return wmove(win, y, x); } static void c_fun_not_there(fn) char *fn; { croak("Curses function '%s' is not defined by your vendor", fn); } static void c_var_not_there(fn) char *fn; { croak("Curses variable '%s' is not defined by your vendor", fn); } static void c_con_not_there(fn) char *fn; { croak("Curses constant '%s' is not defined by your vendor", fn); } /* ** Begin complex type conversion routines */ static chtype c_sv2chtype(sv) SV *sv; { if (SvPOK(sv)) { char *tmp = SvPV_nolen(sv); return (chtype)(unsigned char)tmp[0]; } return (chtype)SvIV(sv); } static void c_chtype2sv(sv, ch) SV *sv; chtype ch; { if (ch == ERR || ch > 255) { sv_setiv(sv, (I32)ch); } else { char tmp[2]; tmp[0] = (char)ch; tmp[1] = (char)0; sv_setpv(sv, tmp); } } static FIELD * c_sv2field(sv, argnum) SV *sv; int argnum; { if (sv_derived_from(sv, "Curses::Field")) return (FIELD *)SvIV((SV*)SvRV(sv)); if (argnum >= 0) croak("argument %d to Curses function '%s' is not a Curses field", argnum, c_function); else croak("argument is not a Curses field"); } static void c_field2sv(SV * const svP, FIELD * const fieldP) { /*---------------------------------------------------------------------------- Make *svP a reference to a scalar whose value is the numerical equivalent of 'fieldP' and which is blessed into the hypothetical package "Curses::Field". -----------------------------------------------------------------------------*/ sv_setref_pv(svP, "Curses::Field", (void*)fieldP); } static FORM * c_sv2form(sv, argnum) SV *sv; int argnum; { if (sv_derived_from(sv, "Curses::Form")) return (FORM *)SvIV((SV*)SvRV(sv)); if (argnum >= 0) croak("argument %d to Curses function '%s' is not a Curses form", argnum, c_function); else croak("argument is not a Curses form"); } static void c_form2sv(sv, val) SV *sv; FORM *val; { sv_setref_pv(sv, "Curses::Form", (void*)val); } static ITEM * c_sv2item(sv, argnum) SV *sv; int argnum; { if (sv_derived_from(sv, "Curses::Item")) return (ITEM *)SvIV((SV*)SvRV(sv)); if (argnum >= 0) croak("argument %d to Curses function '%s' is not a Curses item", argnum, c_function); else croak("argument is not a Curses item"); } static void c_item2sv(sv, val) SV *sv; ITEM *val; { sv_setref_pv(sv, "Curses::Item", (void*)val); } static MENU * c_sv2menu(sv, argnum) SV *sv; int argnum; { if (sv_derived_from(sv, "Curses::Menu")) return (MENU *)SvIV((SV*)SvRV(sv)); if (argnum >= 0) croak("argument %d to Curses function '%s' is not a Curses menu", argnum, c_function); else croak("argument is not a Curses menu"); } static void c_menu2sv(sv, val) SV *sv; MENU *val; { sv_setref_pv(sv, "Curses::Menu", (void*)val); } static PANEL * c_sv2panel(sv, argnum) SV *sv; int argnum; { if (sv_derived_from(sv, "Curses::Panel")) return (PANEL *)SvIV((SV*)SvRV(sv)); if (argnum >= 0) croak("argument %d to Curses function '%s' is not a Curses panel", argnum, c_function); else croak("argument is not a Curses panel"); } static void c_panel2sv(sv, val) SV *sv; PANEL *val; { sv_setref_pv(sv, "Curses::Panel", (void*)val); } static SCREEN * c_sv2screen(sv, argnum) SV *sv; int argnum; { if (sv_derived_from(sv, "Curses::Screen")) return (SCREEN *)SvIV((SV*)SvRV(sv)); if (argnum >= 0) croak("argument %d to Curses function '%s' is not a Curses screen", argnum, c_function); else croak("argument is not a Curses screen"); } static void c_screen2sv(sv, val) SV *sv; SCREEN *val; { sv_setref_pv(sv, "Curses::Screen", (void*)val); } static WINDOW * c_sv2window(sv, argnum) SV *sv; int argnum; { if (sv_derived_from(sv, "Curses::Window")) { WINDOW *ret = (WINDOW *)SvIV((SV*)SvRV(sv)); return ret; } if (argnum >= 0) croak("argument %d to Curses function '%s' is not a Curses window", argnum, c_function); else croak("argument is not a Curses window"); } static void c_window2sv(sv, val) SV *sv; WINDOW *val; { sv_setref_pv(sv, "Curses::Window", (void*)val); } static void c_setchar(sv, name) SV *sv; char *name; { int len = SvLEN(sv); if (len > 0) { name[len - 1] = 0; SvCUR(sv) = strlen(name); SvPOK_only(sv); *SvEND(sv) = 0; } } static void c_setchtype(sv, name) SV *sv; chtype *name; { int n = 0; int rs = sizeof(chtype); int len = SvLEN(sv); if (len - len % rs > rs) { /* find even multiple of rs */ name[len - len % rs - rs] = 0; while (*name++) { n++; } SvCUR(sv) = n; SvPOK_only(sv); *(chtype *)SvEND(sv) = 0; } } static void c_setmevent(sv) SV *sv; { SvCUR(sv) = sizeof(MEVENT); SvPOK_only(sv); } /* ** Cheesy, I know. But it works. */ #include "CursesFun.c" #include "CursesVar.c" #include "CursesCon.c" #include "CursesBoot.c"