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/* SCCS Id: @(#)termcap.c 3.4 2000/07/10 */
/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/* NetHack may be freely redistributed. See license for details. */
#include "hack.h"
#if defined (TTY_GRAPHICS) && !defined(NO_TERMS)
#include "wintty.h"
#include "tcap.h"
#ifdef MICROPORT_286_BUG
#define Tgetstr(key) (tgetstr(key,tbuf))
#else
#define Tgetstr(key) (tgetstr(key,&tbufptr))
#endif /* MICROPORT_286_BUG **/
static char * FDECL(s_atr2str, (int));
static char * FDECL(e_atr2str, (int));
void FDECL(cmov, (int, int));
void FDECL(nocmov, (int, int));
#if defined(TEXTCOLOR) && defined(TERMLIB)
# ifdef OVLB
# if !defined(UNIX) || !defined(TERMINFO)
# ifndef TOS
static void FDECL(analyze_seq, (char *, int *, int *));
# endif
# endif
static void NDECL(init_hilite);
static void NDECL(kill_hilite);
# endif /* OVLB */
#endif
#ifdef OVLB
/* (see tcap.h) -- nh_CM, nh_ND, nh_CD, nh_HI,nh_HE, nh_US,nh_UE,
ul_hack */
struct tc_lcl_data tc_lcl_data = { 0, 0, 0, 0,0, 0,0, FALSE };
#endif /* OVLB */
STATIC_VAR char *HO, *CL, *CE, *UP, *XD, *BC, *SO, *SE, *TI, *TE;
STATIC_VAR char *VS, *VE;
STATIC_VAR char *ME;
STATIC_VAR char *MR;
#if 0
STATIC_VAR char *MB, *MH;
STATIC_VAR char *MD; /* may already be in use below */
#endif
#ifdef TERMLIB
# ifdef TEXTCOLOR
STATIC_VAR char *MD;
# endif
STATIC_VAR int SG;
#ifdef OVLB
STATIC_OVL char PC = '\0';
#else /* OVLB */
STATIC_DCL char PC;
#endif /* OVLB */
STATIC_VAR char tbuf[512];
#endif
#ifdef TEXTCOLOR
# ifdef TOS
const char *hilites[CLR_MAX]; /* terminal escapes for the various colors */
# else
char NEARDATA *hilites[CLR_MAX]; /* terminal escapes for the various colors */
# endif
#endif
#ifdef OVLB
static char *KS = (char *)0, *KE = (char *)0; /* keypad sequences */
static char nullstr[] = "";
#endif /* OVLB */
#if defined(ASCIIGRAPH) && !defined(NO_TERMS)
extern boolean HE_resets_AS;
#endif
STATIC_VAR char tgotobuf[20];
#define tgoto(fmt, x, y) (Sprintf(tgotobuf, fmt, y+1, x+1), tgotobuf)
#ifdef OVLB
void
tty_startup(wid, hgt)
int *wid, *hgt;
{
register int i;
register const char *term;
register char *tptr;
char *tbufptr, *pc;
{
HO = "\033[H";
nh_CD = "\033[J";
CE = "\033[K"; /* the ANSI termcap */
nh_CM = "\033[%d;%dH";
UP = "\033[A";
nh_ND = "\033[C";
XD = "\033[B";
BC = "\b";
nh_HI = SO = "\033[1m";
nh_US = "\033[4m";
MR = "\033[7m";
TI = nh_HE = ME = SE = nh_UE = "\033[0m";
/* strictly, SE should be 2, and nh_UE should be 24,
but we can't trust all ANSI emulators to be
that complete. -3. */
AS = "\016";
AE = "\017";
TE = VS = VE = nullstr;
for (i = 0; i < CLR_MAX / 2; i++)
if (i != CLR_BLACK) {
hilites[i|BRIGHT] = (char *) alloc(sizeof("\033[1m\033[3%dm"));
Sprintf(hilites[i|BRIGHT], "\033[1m\033[3%dm", i);
if (i != CLR_GRAY)
{
hilites[i] = (char *) alloc(sizeof("\033[0m\033[3%dm"));
Sprintf(hilites[i], "\033[0m\033[3%dm", i);
}
}
*wid = CO = 80;
*hgt = LI = 24;
CL = "\033[2J"; /* last thing set */
return;
}
}
/* note: at present, this routine is not part of the formal window interface */
/* deallocate resources prior to final termination */
void
tty_shutdown()
{
#if defined(TEXTCOLOR) && defined(TERMLIB)
kill_hilite();
#endif
/* we don't attempt to clean up individual termcap variables [yet?] */
return;
}
void
tty_number_pad(state)
int state;
{
switch (state) {
case -1: /* activate keypad mode (escape sequences) */
if (KS && *KS) xputs(KS);
break;
case 1: /* activate numeric mode for keypad (digits) */
if (KE && *KE) xputs(KE);
break;
case 0: /* don't need to do anything--leave terminal as-is */
default:
break;
}
}
#ifdef TERMLIB
extern void NDECL((*decgraphics_mode_callback)); /* defined in drawing.c */
static void NDECL(tty_decgraphics_termcap_fixup);
/*
We call this routine whenever DECgraphics mode is enabled, even if it
has been previously set, in case the user manages to reset the fonts.
The actual termcap fixup only needs to be done once, but we can't
call xputs() from the option setting or graphics assigning routines,
so this is a convenient hook.
*/
static void
tty_decgraphics_termcap_fixup()
{
static char ctrlN[] = "\016";
static char ctrlO[] = "\017";
static char appMode[] = "\033=";
static char numMode[] = "\033>";
/* these values are missing from some termcaps */
if (!AS) AS = ctrlN; /* ^N (shift-out [graphics font]) */
if (!AE) AE = ctrlO; /* ^O (shift-in [regular font]) */
if (!KS) KS = appMode; /* ESC= (application keypad mode) */
if (!KE) KE = numMode; /* ESC> (numeric keypad mode) */
/*
* Select the line-drawing character set as the alternate font.
* Do not select NA ASCII as the primary font since people may
* reasonably be using the UK character set.
*/
if (iflags.DECgraphics) xputs("\033)0");
#ifdef PC9800
init_hilite();
#endif
#if defined(ASCIIGRAPH) && !defined(NO_TERMS)
/* some termcaps suffer from the bizarre notion that resetting
video attributes should also reset the chosen character set */
{
const char *nh_he = nh_HE, *ae = AE;
int he_limit, ae_length;
if (digit(*ae)) { /* skip over delay prefix, if any */
do ++ae; while (digit(*ae));
if (*ae == '.') { ++ae; if (digit(*ae)) ++ae; }
if (*ae == '*') ++ae;
}
/* can't use nethack's case-insensitive strstri() here, and some old
systems don't have strstr(), so use brute force substring search */
ae_length = strlen(ae), he_limit = strlen(nh_he);
while (he_limit >= ae_length) {
if (strncmp(nh_he, ae, ae_length) == 0) {
HE_resets_AS = TRUE;
break;
}
++nh_he, --he_limit;
}
}
#endif
}
#endif /* TERMLIB */
#if defined(ASCIIGRAPH) && defined(PC9800)
extern void NDECL((*ibmgraphics_mode_callback)); /* defined in drawing.c */
#endif
#ifdef PC9800
extern void NDECL((*ascgraphics_mode_callback)); /* defined in drawing.c */
static void NDECL(tty_ascgraphics_hilite_fixup);
static void
tty_ascgraphics_hilite_fixup()
{
register int c;
for (c = 0; c < CLR_MAX / 2; c++)
if (c != CLR_BLACK) {
hilites[c|BRIGHT] = (char *) alloc(sizeof("\033[1;3%dm"));
Sprintf(hilites[c|BRIGHT], "\033[1;3%dm", c);
if (c != CLR_GRAY) {
hilites[c] = (char *) alloc(sizeof("\033[0;3%dm"));
Sprintf(hilites[c], "\033[0;3%dm", c);
}
}
}
#endif /* PC9800 */
void
tty_start_screen()
{
xputs(TI);
xputs(VS);
#ifdef TERMLIB
if (iflags.DECgraphics) tty_decgraphics_termcap_fixup();
/* set up callback in case option is not set yet but toggled later */
decgraphics_mode_callback = tty_decgraphics_termcap_fixup;
#endif
if (iflags.num_pad) tty_number_pad(1); /* make keypad send digits */
}
void
tty_end_screen()
{
clear_screen();
xputs(VE);
xputs(TE);
}
/* Cursor movements */
#endif /* OVLB */
#ifdef OVL0
/* Note to OVLx tinkerers. The placement of this overlay controls the location
of the function xputc(). This function is not currently in trampoli.[ch]
files for what is deemed to be performance reasons. If this define is moved
and or xputc() is taken out of the ROOT overlay, then action must be taken
in trampoli.[ch]. */
void
nocmov(x, y)
int x,y;
{
if ((int) ttyDisplay->cury > y) {
if(UP) {
while ((int) ttyDisplay->cury > y) { /* Go up. */
xputs(UP);
ttyDisplay->cury--;
}
} else if(nh_CM) {
cmov(x, y);
} else if(HO) {
home();
tty_curs(BASE_WINDOW, x+1, y);
} /* else impossible("..."); */
} else if ((int) ttyDisplay->cury < y) {
if(XD) {
while((int) ttyDisplay->cury < y) {
xputs(XD);
ttyDisplay->cury++;
}
} else if(nh_CM) {
cmov(x, y);
} else {
while((int) ttyDisplay->cury < y) {
xputc('\n');
ttyDisplay->curx = 0;
ttyDisplay->cury++;
}
}
}
if ((int) ttyDisplay->curx < x) { /* Go to the right. */
if(!nh_ND) cmov(x, y); else /* bah */
/* should instead print what is there already */
while ((int) ttyDisplay->curx < x) {
xputs(nh_ND);
ttyDisplay->curx++;
}
} else if ((int) ttyDisplay->curx > x) {
while ((int) ttyDisplay->curx > x) { /* Go to the left. */
xputs(BC);
ttyDisplay->curx--;
}
}
}
void
cmov(x, y)
register int x, y;
{
xputs(tgoto(nh_CM, x, y));
ttyDisplay->cury = y;
ttyDisplay->curx = x;
}
/* See note at OVLx ifdef above. xputc() is a special function. */
void
xputc(c)
char c;
{
nh_output(&c, 1);
}
void
xputs(s)
const char *s;
{
nh_output(s, strlen(s));
}
void
cl_end()
{
if(CE)
xputs(CE);
else { /* no-CE fix - free after Harold Rynes */
/* this looks terrible, especially on a slow terminal
but is better than nothing */
register int cx = ttyDisplay->curx+1;
while(cx < CO) {
xputc(' ');
cx++;
}
tty_curs(BASE_WINDOW, (int)ttyDisplay->curx+1,
(int)ttyDisplay->cury);
}
}
#endif /* OVL0 */
#ifdef OVLB
void
clear_screen()
{
/* note: if CL is null, then termcap initialization failed,
so don't attempt screen-oriented I/O during final cleanup.
*/
if (CL) {
xputs(CL);
home();
}
}
#endif /* OVLB */
#ifdef OVL0
void
home()
{
if(HO)
xputs(HO);
else if(nh_CM)
xputs(tgoto(nh_CM, 0, 0));
else
tty_curs(BASE_WINDOW, 1, 0); /* using UP ... */
ttyDisplay->curx = ttyDisplay->cury = 0;
}
void
standoutbeg()
{
if(SO) xputs(SO);
}
void
standoutend()
{
if(SE) xputs(SE);
}
#if 0 /* if you need one of these, uncomment it (here and in extern.h) */
void
revbeg()
{
if(MR) xputs(MR);
}
void
boldbeg()
{
if(MD) xputs(MD);
}
void
blinkbeg()
{
if(MB) xputs(MB);
}
void
dimbeg()
/* not in most termcap entries */
{
if(MH) xputs(MH);
}
void
m_end()
{
if(ME) xputs(ME);
}
#endif
#endif /* OVL0 */
#ifdef OVLB
void
backsp()
{
xputs(BC);
}
void
tty_nhbell()
{
if (flags.silent) return;
(void) xputc('\007'); /* curx does not change */
}
#endif /* OVLB */
#ifdef OVL0
#ifdef ASCIIGRAPH
void
graph_on() {
if (AS) xputs(AS);
}
void
graph_off() {
if (AE) xputs(AE);
}
#endif
#endif /* OVL0 */
#ifdef OVL1
#if !defined(MICRO)
# ifdef VMS
static const short tmspc10[] = { /* from termcap */
0, 2000, 1333, 909, 743, 666, 333, 166, 83, 55, 50, 41, 27, 20, 13, 10,
5
};
# else
static const short tmspc10[] = { /* from termcap */
0, 2000, 1333, 909, 743, 666, 500, 333, 166, 83, 55, 41, 20, 10, 5
};
# endif
#endif
/* delay 50 ms */
void
tty_delay_output()
{
register int i;
#ifdef TIMED_DELAY
if (flags.nap) {
msleep(50); /* sleep for 50 milliseconds */
return;
}
#endif
if(flags.null)
for (i = 0; i < 1000; i++)
xputc(0);
}
#endif /* OVL1 */
#ifdef OVLB
void
cl_eos() /* free after Robert Viduya */
{ /* must only be called with curx = 1 */
if(nh_CD)
xputs(nh_CD);
else {
register int cy = ttyDisplay->cury+1;
while(cy <= LI-2) {
cl_end();
xputc('\n');
cy++;
}
cl_end();
tty_curs(BASE_WINDOW, (int)ttyDisplay->curx+1,
(int)ttyDisplay->cury);
}
}
#if defined(TEXTCOLOR) && defined(TERMLIB)
# if defined(UNIX) && defined(TERMINFO)
/*
* Sets up color highlighting, using terminfo(4) escape sequences.
*
* Having never seen a terminfo system without curses, we assume this
* inclusion is safe. On systems with color terminfo, it should define
* the 8 COLOR_FOOs, and avoid us having to guess whether this particular
* terminfo uses BGR or RGB for its indexes.
*
* If we don't get the definitions, then guess. Original color terminfos
* used BGR for the original Sf (setf, Standard foreground) codes, but
* there was a near-total lack of user documentation, so some subsequent
* terminfos, such as early Linux ncurses and SCO UNIX, used RGB. Possibly
* as a result of the confusion, AF (setaf, ANSI Foreground) codes were
* introduced, but this caused yet more confusion. Later Linux ncurses
* have BGR Sf, RGB AF, and RGB COLOR_FOO, which appears to be the SVR4
* standard. We could switch the colors around when using Sf with ncurses,
* which would help things on later ncurses and hurt things on early ncurses.
* We'll try just preferring AF and hoping it always agrees with COLOR_FOO,
* and falling back to Sf if AF isn't defined.
*
* In any case, treat black specially so we don't try to display black
* characters on the assumed black background.
*/
/* `curses' is aptly named; various versions don't like these
macros used elsewhere within nethack; fortunately they're
not needed beyond this point, so we don't need to worry
about reconstructing them after the header file inclusion. */
#undef delay_output
#undef TRUE
#undef FALSE
#define m_move curses_m_move /* Some curses.h decl m_move(), not used here */
#include <curses.h>
#ifndef LINUX
extern char *tparm();
#endif
# ifdef COLOR_BLACK /* trust include file */
#undef COLOR_BLACK
# else
# ifndef _M_UNIX /* guess BGR */
#define COLOR_BLUE 1
#define COLOR_GREEN 2
#define COLOR_CYAN 3
#define COLOR_RED 4
#define COLOR_MAGENTA 5
#define COLOR_YELLOW 6
#define COLOR_WHITE 7
# else /* guess RGB */
#define COLOR_RED 1
#define COLOR_GREEN 2
#define COLOR_YELLOW 3
#define COLOR_BLUE 4
#define COLOR_MAGENTA 5
#define COLOR_CYAN 6
#define COLOR_WHITE 7
# endif
# endif
#define COLOR_BLACK COLOR_BLUE
const int ti_map[8] = {
COLOR_BLACK, COLOR_RED, COLOR_GREEN, COLOR_YELLOW,
COLOR_BLUE, COLOR_MAGENTA, COLOR_CYAN, COLOR_WHITE };
static void
init_hilite()
{
register int c;
char *setf, *scratch;
for (c = 0; c < SIZE(hilites); c++)
hilites[c] = nh_HI;
hilites[CLR_GRAY] = hilites[NO_COLOR] = (char *)0;
if (tgetnum("Co") < 8
|| ((setf = tgetstr("AF", (char **)0)) == (char *)0
&& (setf = tgetstr("Sf", (char **)0)) == (char *)0))
return;
for (c = 0; c < CLR_MAX / 2; c++) {
scratch = tparm(setf, ti_map[c]);
if (c != CLR_GRAY) {
hilites[c] = (char *) alloc(strlen(scratch) + 1);
Strcpy(hilites[c], scratch);
}
if (c != CLR_BLACK) {
hilites[c|BRIGHT] = (char*) alloc(strlen(scratch)+strlen(MD)+1);
Strcpy(hilites[c|BRIGHT], MD);
Strcat(hilites[c|BRIGHT], scratch);
}
}
}
# else /* UNIX && TERMINFO */
# ifndef TOS
/* find the foreground and background colors set by nh_HI or nh_HE */
static void
analyze_seq (str, fg, bg)
char *str;
int *fg, *bg;
{
register int c, code;
int len;
# ifdef MICRO
*fg = CLR_GRAY; *bg = CLR_BLACK;
# else
*fg = *bg = NO_COLOR;
# endif
c = (str[0] == '\233') ? 1 : 2; /* index of char beyond esc prefix */
len = strlen(str) - 1; /* length excluding attrib suffix */
if ((c != 1 && (str[0] != '\033' || str[1] != '[')) ||
(len - c) < 1 || str[len] != 'm')
return;
while (c < len) {
if ((code = atoi(&str[c])) == 0) { /* reset */
/* this also catches errors */
# ifdef MICRO
*fg = CLR_GRAY; *bg = CLR_BLACK;
# else
*fg = *bg = NO_COLOR;
# endif
} else if (code == 1) { /* bold */
*fg |= BRIGHT;
# if 0
/* I doubt we'll ever resort to using blinking characters,
unless we want a pulsing glow for something. But, in case
we do... - 3. */
} else if (code == 5) { /* blinking */
*fg |= BLINK;
} else if (code == 25) { /* stop blinking */
*fg &= ~BLINK;
# endif
} else if (code == 7 || code == 27) { /* reverse */
code = *fg & ~BRIGHT;
*fg = *bg | (*fg & BRIGHT);
*bg = code;
} else if (code >= 30 && code <= 37) { /* hi_foreground RGB */
*fg = code - 30;
} else if (code >= 40 && code <= 47) { /* hi_background RGB */
*bg = code - 40;
}
while (digit(str[++c]));
c++;
}
}
# endif
/*
* Sets up highlighting sequences, using ANSI escape sequences (highlight code
* found in print.c). The nh_HI and nh_HE sequences (usually from SO) are
* scanned to find foreground and background colors.
*/
static void
init_hilite()
{
register int c;
# ifdef TOS
extern unsigned long tos_numcolors; /* in tos.c */
static char NOCOL[] = "\033b0", COLHE[] = "\033q\033b0";
if (tos_numcolors <= 2) {
return;
}
/* Under TOS, the "bright" and "dim" colors are reversed. Moreover,
* on the Falcon the dim colors are *really* dim; so we make most
* of the colors the bright versions, with a few exceptions where
* the dim ones look OK.
*/
hilites[0] = NOCOL;
for (c = 1; c < SIZE(hilites); c++) {
char *foo;
foo = (char *) alloc(sizeof("\033b0"));
if (tos_numcolors > 4)
Sprintf(foo, "\033b%c", (c&~BRIGHT)+'0');
else
Strcpy(foo, "\033b0");
hilites[c] = foo;
}
if (tos_numcolors == 4) {
TI = "\033b0\033c3\033E\033e";
TE = "\033b3\033c0\033J";
nh_HE = COLHE;
hilites[CLR_GREEN] = hilites[CLR_GREEN|BRIGHT] = "\033b2";
hilites[CLR_RED] = hilites[CLR_RED|BRIGHT] = "\033b1";
} else {
sprintf(hilites[CLR_BROWN], "\033b%c", (CLR_BROWN^BRIGHT)+'0');
sprintf(hilites[CLR_GREEN], "\033b%c", (CLR_GREEN^BRIGHT)+'0');
TI = "\033b0\033c\017\033E\033e";
TE = "\033b\017\033c0\033J";
nh_HE = COLHE;
hilites[CLR_WHITE] = hilites[CLR_BLACK] = NOCOL;
hilites[NO_COLOR] = hilites[CLR_GRAY];
}
# else /* TOS */
int backg, foreg, hi_backg, hi_foreg;
for (c = 0; c < SIZE(hilites); c++)
hilites[c] = nh_HI;
hilites[CLR_GRAY] = hilites[NO_COLOR] = (char *)0;
analyze_seq(nh_HI, &hi_foreg, &hi_backg);
analyze_seq(nh_HE, &foreg, &backg);
for (c = 0; c < SIZE(hilites); c++)
/* avoid invisibility */
if ((backg & ~BRIGHT) != c) {
# ifdef MICRO
if (c == CLR_BLUE) continue;
# endif
if (c == foreg)
hilites[c] = (char *)0;
else if (c != hi_foreg || backg != hi_backg) {
hilites[c] = (char *) alloc(sizeof("\033[%d;3%d;4%dm"));
Sprintf(hilites[c], "\033[%d", !!(c & BRIGHT));
if ((c | BRIGHT) != (foreg | BRIGHT))
Sprintf(eos(hilites[c]), ";3%d", c & ~BRIGHT);
if (backg != CLR_BLACK)
Sprintf(eos(hilites[c]), ";4%d", backg & ~BRIGHT);
Strcat(hilites[c], "m");
}
}
# ifdef MICRO
/* brighten low-visibility colors */
hilites[CLR_BLUE] = hilites[CLR_BLUE|BRIGHT];
# endif
# endif /* TOS */
}
# endif /* UNIX */
static void
kill_hilite()
{
# ifndef TOS
register int c;
for (c = 0; c < CLR_MAX / 2; c++) {
if (hilites[c|BRIGHT] == hilites[c]) hilites[c|BRIGHT] = 0;
if (hilites[c] && (hilites[c] != nh_HI))
free((genericptr_t) hilites[c]), hilites[c] = 0;
if (hilites[c|BRIGHT] && (hilites[c|BRIGHT] != nh_HI))
free((genericptr_t) hilites[c|BRIGHT]), hilites[c|BRIGHT] = 0;
}
# endif
return;
}
#endif /* TEXTCOLOR */
static char nulstr[] = "";
static char *
s_atr2str(n)
int n;
{
switch (n) {
case ATR_ULINE:
if(nh_US) return nh_US;
case ATR_BOLD:
case ATR_BLINK:
#if defined(TERMLIB) && defined(TEXTCOLOR)
if (MD) return MD;
#endif
return nh_HI;
case ATR_INVERSE:
return MR;
}
return nulstr;
}
static char *
e_atr2str(n)
int n;
{
switch (n) {
case ATR_ULINE:
if(nh_UE) return nh_UE;
case ATR_BOLD:
case ATR_BLINK:
return nh_HE;
case ATR_INVERSE:
return ME;
}
return nulstr;
}
void
term_start_attr(attr)
int attr;
{
if (attr) {
xputs(s_atr2str(attr));
}
}
void
term_end_attr(attr)
int attr;
{
if(attr) {
xputs(e_atr2str(attr));
}
}
void
term_start_raw_bold()
{
xputs(nh_HI);
}
void
term_end_raw_bold()
{
xputs(nh_HE);
}
#ifdef TEXTCOLOR
void
term_end_color()
{
xputs(nh_HE);
}
void
term_start_color(color)
int color;
{
xputs(hilites[color]);
}
int
has_color(color)
int color;
{
#ifdef X11_GRAPHICS
/* XXX has_color() should be added to windowprocs */
if (windowprocs.name != NULL &&
!strcmpi(windowprocs.name, "X11")) return TRUE;
#endif
#ifdef GEM_GRAPHICS
/* XXX has_color() should be added to windowprocs */
if (windowprocs.name != NULL &&
!strcmpi(windowprocs.name, "Gem")) return TRUE;
#endif
#ifdef QT_GRAPHICS
/* XXX has_color() should be added to windowprocs */
if (windowprocs.name != NULL &&
!strcmpi(windowprocs.name, "Qt")) return TRUE;
#endif
#ifdef AMII_GRAPHICS
/* hilites[] not used */
return iflags.use_color;
#endif
return hilites[color] != (char *)0;
}
#endif /* TEXTCOLOR */
#endif /* OVLB */
#endif /* TTY_GRAPHICS */
/*termcap.c*/