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13 Commits

Author SHA1 Message Date
celso 63e07d43e8 added keyboard select patch 2023-11-15 03:30:09 -03:00
celso 4e67b68ee5 added st-mouse-altscreen and st-anysize patches 2023-11-15 03:30:09 -03:00
celso ae0aac682a added st-scrollback-mouse patch 2023-11-15 03:30:09 -03:00
celso a88c6f9cdc added st-reflow patch 2023-11-15 03:30:07 -03:00
celso da493acb29 added st-scrollback 2023-11-15 03:28:51 -03:00
celso 7bf6fe780f added st-delkey patch 2023-11-15 03:28:51 -03:00
celso 64bedf9834 modified config.mk for dell_laptop 2023-11-15 03:28:51 -03:00
Peter Hofmann 9846a56bd7 Add terminfo entries for bracketed paste mode
Helps Vim (and hopefully others) to discover that this feature exists
without further user configuration.
2023-10-07 12:16:59 +02:00
Peter Hofmann 559fdc2786 Unhide cursor on RIS (\033c)
It is unclear if it's "required" to do this on RIS, but it's useful when
calling reset(1) after interactive programs have crashed and garbled up
the screen.

FWIW, other terminals do it as well (tested with XTerm, VTE, Kitty,
Alacritty, Linux VT).
2023-10-07 12:16:59 +02:00
Peter Hofmann 8abe4bcb41 Fix wide glyphs breaking "nowrap" mode
Consider the following example:

    printf '\e[?7l';\
    for i in $(seq $(($(tput cols) - 1))); do printf a; done;\
    printf '🙈\n';\
    printf '\e[?7h'

Even though MODE_WRAP has been disabled, the emoji appeared on the next
line. This patch keeps wide glyphs on the same line and moves them to
the right-most possible position.
2023-10-07 12:16:59 +02:00
Peter Hofmann 2fc7e532b2 Don't scroll selection on the other screen
Fixes garbage selections when switching to/from the alternate screen.

How to reproduce:

-   Be in primary screen.
-   Select something.
-   Run this (switches to alternate screen, positions the cursor at the
    bottom, triggers selscroll(), and then goes back to primary screen):

        tput smcup; tput cup $(tput lines) 0; echo foo; tput rmcup

-   Notice how the (visual) selection now covers a different line.

The reason is that selscroll() calls selnormalize() and that cannot find
the original range anymore. It's all empty lines now, so it snaps to
"select the whole line".
2023-10-07 12:16:59 +02:00
Peter Hofmann a6bbc0c96b Fix bounds checks of dc.col
dc.collen is the length of dc.col, not the maximum index, hence if x is
equal to dc.collen, then it's an error.

With config.def.h, the last valid index is 259, so this correctly
reports "black":

    $ printf '\033]4;259;?\e\\'

260 is an invalid index and this reports garbage instead of printing an
error:

    $ printf '\033]4;260;?\e\\'
2023-10-07 12:16:59 +02:00
Hiltjo Posthuma eb3b894f40 Makefile: remove the options target
The Makefile used to suppress output (by using @), so this target made sense at
the time.

But the Makefile should be simple and make debugging with less abstractions or
fancy printing.  The Makefile was made verbose and doesn't hide the build
output, so remove this target.

Prompted by a question on the mailing list about the options target.
2023-09-22 15:16:52 +02:00
8 changed files with 986 additions and 308 deletions

View File

@ -7,13 +7,7 @@ include config.mk
SRC = st.c x.c SRC = st.c x.c
OBJ = $(SRC:.c=.o) OBJ = $(SRC:.c=.o)
all: options st all: st
options:
@echo st build options:
@echo "CFLAGS = $(STCFLAGS)"
@echo "LDFLAGS = $(STLDFLAGS)"
@echo "CC = $(CC)"
config.h: config.h:
cp config.def.h config.h cp config.def.h config.h
@ -54,4 +48,4 @@ uninstall:
rm -f $(DESTDIR)$(PREFIX)/bin/st rm -f $(DESTDIR)$(PREFIX)/bin/st
rm -f $(DESTDIR)$(MANPREFIX)/man1/st.1 rm -f $(DESTDIR)$(MANPREFIX)/man1/st.1
.PHONY: all options clean dist install uninstall .PHONY: all clean dist install uninstall

View File

@ -176,6 +176,8 @@ static uint forcemousemod = ShiftMask;
*/ */
static MouseShortcut mshortcuts[] = { static MouseShortcut mshortcuts[] = {
/* mask button function argument release */ /* mask button function argument release */
{ XK_ANY_MOD, Button4, kscrollup, {.i = 1}, 0, /* !alt */ -1 },
{ XK_ANY_MOD, Button5, kscrolldown, {.i = 1}, 0, /* !alt */ -1 },
{ XK_ANY_MOD, Button2, selpaste, {.i = 0}, 1 }, { XK_ANY_MOD, Button2, selpaste, {.i = 0}, 1 },
{ ShiftMask, Button4, ttysend, {.s = "\033[5;2~"} }, { ShiftMask, Button4, ttysend, {.s = "\033[5;2~"} },
{ XK_ANY_MOD, Button4, ttysend, {.s = "\031"} }, { XK_ANY_MOD, Button4, ttysend, {.s = "\031"} },
@ -201,6 +203,9 @@ static Shortcut shortcuts[] = {
{ TERMMOD, XK_Y, selpaste, {.i = 0} }, { TERMMOD, XK_Y, selpaste, {.i = 0} },
{ ShiftMask, XK_Insert, selpaste, {.i = 0} }, { ShiftMask, XK_Insert, selpaste, {.i = 0} },
{ TERMMOD, XK_Num_Lock, numlock, {.i = 0} }, { TERMMOD, XK_Num_Lock, numlock, {.i = 0} },
{ TERMMOD, XK_Escape, keyboard_select,{.i = 0} },
{ ShiftMask, XK_Page_Up, kscrollup, {.i = -1} },
{ ShiftMask, XK_Page_Down, kscrolldown, {.i = -1} },
}; };
/* /*
@ -278,7 +283,7 @@ static Key key[] = {
{ XK_KP_Delete, ControlMask, "\033[3;5~", +1, 0}, { XK_KP_Delete, ControlMask, "\033[3;5~", +1, 0},
{ XK_KP_Delete, ShiftMask, "\033[2K", -1, 0}, { XK_KP_Delete, ShiftMask, "\033[2K", -1, 0},
{ XK_KP_Delete, ShiftMask, "\033[3;2~", +1, 0}, { XK_KP_Delete, ShiftMask, "\033[3;2~", +1, 0},
{ XK_KP_Delete, XK_ANY_MOD, "\033[P", -1, 0}, { XK_KP_Delete, XK_ANY_MOD, "\033[3~", -1, 0},
{ XK_KP_Delete, XK_ANY_MOD, "\033[3~", +1, 0}, { XK_KP_Delete, XK_ANY_MOD, "\033[3~", +1, 0},
{ XK_KP_Multiply, XK_ANY_MOD, "\033Oj", +2, 0}, { XK_KP_Multiply, XK_ANY_MOD, "\033Oj", +2, 0},
{ XK_KP_Add, XK_ANY_MOD, "\033Ok", +2, 0}, { XK_KP_Add, XK_ANY_MOD, "\033Ok", +2, 0},
@ -346,7 +351,7 @@ static Key key[] = {
{ XK_Delete, ControlMask, "\033[3;5~", +1, 0}, { XK_Delete, ControlMask, "\033[3;5~", +1, 0},
{ XK_Delete, ShiftMask, "\033[2K", -1, 0}, { XK_Delete, ShiftMask, "\033[2K", -1, 0},
{ XK_Delete, ShiftMask, "\033[3;2~", +1, 0}, { XK_Delete, ShiftMask, "\033[3;2~", +1, 0},
{ XK_Delete, XK_ANY_MOD, "\033[P", -1, 0}, { XK_Delete, XK_ANY_MOD, "\033[3~", -1, 0},
{ XK_Delete, XK_ANY_MOD, "\033[3~", +1, 0}, { XK_Delete, XK_ANY_MOD, "\033[3~", +1, 0},
{ XK_BackSpace, XK_NO_MOD, "\177", 0, 0}, { XK_BackSpace, XK_NO_MOD, "\177", 0, 0},
{ XK_BackSpace, Mod1Mask, "\033\177", 0, 0}, { XK_BackSpace, Mod1Mask, "\033\177", 0, 0},

View File

@ -4,11 +4,11 @@ VERSION = 0.9
# Customize below to fit your system # Customize below to fit your system
# paths # paths
PREFIX = /usr/local PREFIX = /usr
MANPREFIX = $(PREFIX)/share/man MANPREFIX = $(PREFIX)/share/man
X11INC = /usr/X11R6/include X11INC = /usr/include/X11
X11LIB = /usr/X11R6/lib X11LIB = /usr/lib64
PKG_CONFIG = pkg-config PKG_CONFIG = pkg-config

1136
st.c

File diff suppressed because it is too large Load Diff

28
st.h
View File

@ -22,17 +22,19 @@
enum glyph_attribute { enum glyph_attribute {
ATTR_NULL = 0, ATTR_NULL = 0,
ATTR_BOLD = 1 << 0, ATTR_SET = 1 << 0,
ATTR_FAINT = 1 << 1, ATTR_BOLD = 1 << 1,
ATTR_ITALIC = 1 << 2, ATTR_FAINT = 1 << 2,
ATTR_UNDERLINE = 1 << 3, ATTR_ITALIC = 1 << 3,
ATTR_BLINK = 1 << 4, ATTR_UNDERLINE = 1 << 4,
ATTR_REVERSE = 1 << 5, ATTR_BLINK = 1 << 5,
ATTR_INVISIBLE = 1 << 6, ATTR_REVERSE = 1 << 6,
ATTR_STRUCK = 1 << 7, ATTR_INVISIBLE = 1 << 7,
ATTR_WRAP = 1 << 8, ATTR_STRUCK = 1 << 8,
ATTR_WIDE = 1 << 9, ATTR_WRAP = 1 << 9,
ATTR_WDUMMY = 1 << 10, ATTR_WIDE = 1 << 10,
ATTR_WDUMMY = 1 << 11,
ATTR_SELECTED = 1 << 12,
ATTR_BOLD_FAINT = ATTR_BOLD | ATTR_FAINT, ATTR_BOLD_FAINT = ATTR_BOLD | ATTR_FAINT,
}; };
@ -81,6 +83,8 @@ void die(const char *, ...);
void redraw(void); void redraw(void);
void draw(void); void draw(void);
void kscrolldown(const Arg *);
void kscrollup(const Arg *);
void printscreen(const Arg *); void printscreen(const Arg *);
void printsel(const Arg *); void printsel(const Arg *);
void sendbreak(const Arg *); void sendbreak(const Arg *);
@ -88,6 +92,7 @@ void toggleprinter(const Arg *);
int tattrset(int); int tattrset(int);
void tnew(int, int); void tnew(int, int);
int tisaltscreen(void);
void tresize(int, int); void tresize(int, int);
void tsetdirtattr(int); void tsetdirtattr(int);
void ttyhangup(void); void ttyhangup(void);
@ -110,6 +115,7 @@ size_t utf8encode(Rune, char *);
void *xmalloc(size_t); void *xmalloc(size_t);
void *xrealloc(void *, size_t); void *xrealloc(void *, size_t);
char *xstrdup(const char *); char *xstrdup(const char *);
int trt_kbdselect(KeySym, char *, int);
/* config.h globals */ /* config.h globals */
extern char *utmp; extern char *utmp;

View File

@ -184,6 +184,10 @@ st-mono| simpleterm monocolor,
# XTerm extensions # XTerm extensions
rmxx=\E[29m, rmxx=\E[29m,
smxx=\E[9m, smxx=\E[9m,
BE=\E[?2004h,
BD=\E[?2004l,
PS=\E[200~,
PE=\E[201~,
# disabled rep for now: causes some issues with older ncurses versions. # disabled rep for now: causes some issues with older ncurses versions.
# rep=%p1%c\E[%p2%{1}%-%db, # rep=%p1%c\E[%p2%{1}%-%db,
# tmux extensions, see TERMINFO EXTENSIONS in tmux(1) # tmux extensions, see TERMINFO EXTENSIONS in tmux(1)

3
win.h
View File

@ -21,6 +21,7 @@ enum win_mode {
MODE_NUMLOCK = 1 << 17, MODE_NUMLOCK = 1 << 17,
MODE_MOUSE = MODE_MOUSEBTN|MODE_MOUSEMOTION|MODE_MOUSEX10\ MODE_MOUSE = MODE_MOUSEBTN|MODE_MOUSEMOTION|MODE_MOUSEX10\
|MODE_MOUSEMANY, |MODE_MOUSEMANY,
MODE_KBDSELECT = 1 << 18,
}; };
void xbell(void); void xbell(void);
@ -38,4 +39,6 @@ void xsetmode(int, unsigned int);
void xsetpointermotion(int); void xsetpointermotion(int);
void xsetsel(char *); void xsetsel(char *);
int xstartdraw(void); int xstartdraw(void);
void toggle_winmode(int);
void keyboard_select(const Arg *);
void xximspot(int, int); void xximspot(int, int);

76
x.c
View File

@ -34,6 +34,7 @@ typedef struct {
void (*func)(const Arg *); void (*func)(const Arg *);
const Arg arg; const Arg arg;
uint release; uint release;
int altscrn; /* 0: don't care, -1: not alt screen, 1: alt screen */
} MouseShortcut; } MouseShortcut;
typedef struct { typedef struct {
@ -81,6 +82,7 @@ typedef XftGlyphFontSpec GlyphFontSpec;
typedef struct { typedef struct {
int tw, th; /* tty width and height */ int tw, th; /* tty width and height */
int w, h; /* window width and height */ int w, h; /* window width and height */
int hborderpx, vborderpx;
int ch; /* char height */ int ch; /* char height */
int cw; /* char width */ int cw; /* char width */
int mode; /* window state/mode flags */ int mode; /* window state/mode flags */
@ -331,7 +333,7 @@ ttysend(const Arg *arg)
int int
evcol(XEvent *e) evcol(XEvent *e)
{ {
int x = e->xbutton.x - borderpx; int x = e->xbutton.x - win.hborderpx;
LIMIT(x, 0, win.tw - 1); LIMIT(x, 0, win.tw - 1);
return x / win.cw; return x / win.cw;
} }
@ -339,7 +341,7 @@ evcol(XEvent *e)
int int
evrow(XEvent *e) evrow(XEvent *e)
{ {
int y = e->xbutton.y - borderpx; int y = e->xbutton.y - win.vborderpx;
LIMIT(y, 0, win.th - 1); LIMIT(y, 0, win.th - 1);
return y / win.ch; return y / win.ch;
} }
@ -455,6 +457,7 @@ mouseaction(XEvent *e, uint release)
for (ms = mshortcuts; ms < mshortcuts + LEN(mshortcuts); ms++) { for (ms = mshortcuts; ms < mshortcuts + LEN(mshortcuts); ms++) {
if (ms->release == release && if (ms->release == release &&
ms->button == e->xbutton.button && ms->button == e->xbutton.button &&
(!ms->altscrn || (ms->altscrn == (tisaltscreen() ? 1 : -1))) &&
(match(ms->mod, state) || /* exact or forced */ (match(ms->mod, state) || /* exact or forced */
match(ms->mod, state & ~forcemousemod))) { match(ms->mod, state & ~forcemousemod))) {
ms->func(&(ms->arg)); ms->func(&(ms->arg));
@ -739,6 +742,9 @@ cresize(int width, int height)
col = MAX(1, col); col = MAX(1, col);
row = MAX(1, row); row = MAX(1, row);
win.hborderpx = (win.w - col * win.cw) / 2;
win.vborderpx = (win.h - row * win.ch) / 2;
tresize(col, row); tresize(col, row);
xresize(col, row); xresize(col, row);
ttyresize(win.tw, win.th); ttyresize(win.tw, win.th);
@ -818,7 +824,7 @@ xloadcols(void)
int int
xgetcolor(int x, unsigned char *r, unsigned char *g, unsigned char *b) xgetcolor(int x, unsigned char *r, unsigned char *g, unsigned char *b)
{ {
if (!BETWEEN(x, 0, dc.collen)) if (!BETWEEN(x, 0, dc.collen - 1))
return 1; return 1;
*r = dc.col[x].color.red >> 8; *r = dc.col[x].color.red >> 8;
@ -833,7 +839,7 @@ xsetcolorname(int x, const char *name)
{ {
Color ncolor; Color ncolor;
if (!BETWEEN(x, 0, dc.collen)) if (!BETWEEN(x, 0, dc.collen - 1))
return 1; return 1;
if (!xloadcolor(x, name, &ncolor)) if (!xloadcolor(x, name, &ncolor))
@ -869,8 +875,8 @@ xhints(void)
sizeh->flags = PSize | PResizeInc | PBaseSize | PMinSize; sizeh->flags = PSize | PResizeInc | PBaseSize | PMinSize;
sizeh->height = win.h; sizeh->height = win.h;
sizeh->width = win.w; sizeh->width = win.w;
sizeh->height_inc = win.ch; sizeh->height_inc = 1;
sizeh->width_inc = win.cw; sizeh->width_inc = 1;
sizeh->base_height = 2 * borderpx; sizeh->base_height = 2 * borderpx;
sizeh->base_width = 2 * borderpx; sizeh->base_width = 2 * borderpx;
sizeh->min_height = win.ch + 2 * borderpx; sizeh->min_height = win.ch + 2 * borderpx;
@ -1152,8 +1158,8 @@ xinit(int cols, int rows)
xloadcols(); xloadcols();
/* adjust fixed window geometry */ /* adjust fixed window geometry */
win.w = 2 * borderpx + cols * win.cw; win.w = 2 * win.hborderpx + 2 * borderpx + cols * win.cw;
win.h = 2 * borderpx + rows * win.ch; win.h = 2 * win.vborderpx + 2 * borderpx + rows * win.ch;
if (xw.gm & XNegative) if (xw.gm & XNegative)
xw.l += DisplayWidth(xw.dpy, xw.scr) - win.w - 2; xw.l += DisplayWidth(xw.dpy, xw.scr) - win.w - 2;
if (xw.gm & YNegative) if (xw.gm & YNegative)
@ -1242,7 +1248,7 @@ xinit(int cols, int rows)
int int
xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x, int y) xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x, int y)
{ {
float winx = borderpx + x * win.cw, winy = borderpx + y * win.ch, xp, yp; float winx = win.hborderpx + x * win.cw, winy = win.vborderpx + y * win.ch, xp, yp;
ushort mode, prevmode = USHRT_MAX; ushort mode, prevmode = USHRT_MAX;
Font *font = &dc.font; Font *font = &dc.font;
int frcflags = FRC_NORMAL; int frcflags = FRC_NORMAL;
@ -1375,7 +1381,7 @@ void
xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y) xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y)
{ {
int charlen = len * ((base.mode & ATTR_WIDE) ? 2 : 1); int charlen = len * ((base.mode & ATTR_WIDE) ? 2 : 1);
int winx = borderpx + x * win.cw, winy = borderpx + y * win.ch, int winx = win.hborderpx + x * win.cw, winy = win.vborderpx + y * win.ch,
width = charlen * win.cw; width = charlen * win.cw;
Color *fg, *bg, *temp, revfg, revbg, truefg, truebg; Color *fg, *bg, *temp, revfg, revbg, truefg, truebg;
XRenderColor colfg, colbg; XRenderColor colfg, colbg;
@ -1465,17 +1471,17 @@ xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, i
/* Intelligent cleaning up of the borders. */ /* Intelligent cleaning up of the borders. */
if (x == 0) { if (x == 0) {
xclear(0, (y == 0)? 0 : winy, borderpx, xclear(0, (y == 0)? 0 : winy, win.hborderpx,
winy + win.ch + winy + win.ch +
((winy + win.ch >= borderpx + win.th)? win.h : 0)); ((winy + win.ch >= win.vborderpx + win.th)? win.h : 0));
} }
if (winx + width >= borderpx + win.tw) { if (winx + width >= win.hborderpx + win.tw) {
xclear(winx + width, (y == 0)? 0 : winy, win.w, xclear(winx + width, (y == 0)? 0 : winy, win.w,
((winy + win.ch >= borderpx + win.th)? win.h : (winy + win.ch))); ((winy + win.ch >= win.vborderpx + win.th)? win.h : (winy + win.ch)));
} }
if (y == 0) if (y == 0)
xclear(winx, 0, winx + width, borderpx); xclear(winx, 0, winx + width, win.vborderpx);
if (winy + win.ch >= borderpx + win.th) if (winy + win.ch >= win.vborderpx + win.th)
xclear(winx, winy + win.ch, winx + width, win.h); xclear(winx, winy + win.ch, winx + width, win.h);
/* Clean up the region we want to draw to. */ /* Clean up the region we want to draw to. */
@ -1569,35 +1575,35 @@ xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og)
case 3: /* Blinking Underline */ case 3: /* Blinking Underline */
case 4: /* Steady Underline */ case 4: /* Steady Underline */
XftDrawRect(xw.draw, &drawcol, XftDrawRect(xw.draw, &drawcol,
borderpx + cx * win.cw, win.hborderpx + cx * win.cw,
borderpx + (cy + 1) * win.ch - \ win.vborderpx + (cy + 1) * win.ch - \
cursorthickness, cursorthickness,
win.cw, cursorthickness); win.cw, cursorthickness);
break; break;
case 5: /* Blinking bar */ case 5: /* Blinking bar */
case 6: /* Steady bar */ case 6: /* Steady bar */
XftDrawRect(xw.draw, &drawcol, XftDrawRect(xw.draw, &drawcol,
borderpx + cx * win.cw, win.hborderpx + cx * win.cw,
borderpx + cy * win.ch, win.vborderpx + cy * win.ch,
cursorthickness, win.ch); cursorthickness, win.ch);
break; break;
} }
} else { } else {
XftDrawRect(xw.draw, &drawcol, XftDrawRect(xw.draw, &drawcol,
borderpx + cx * win.cw, win.hborderpx + cx * win.cw,
borderpx + cy * win.ch, win.vborderpx + cy * win.ch,
win.cw - 1, 1); win.cw - 1, 1);
XftDrawRect(xw.draw, &drawcol, XftDrawRect(xw.draw, &drawcol,
borderpx + cx * win.cw, win.hborderpx + cx * win.cw,
borderpx + cy * win.ch, win.vborderpx + cy * win.ch,
1, win.ch - 1); 1, win.ch - 1);
XftDrawRect(xw.draw, &drawcol, XftDrawRect(xw.draw, &drawcol,
borderpx + (cx + 1) * win.cw - 1, win.hborderpx + (cx + 1) * win.cw - 1,
borderpx + cy * win.ch, win.vborderpx + cy * win.ch,
1, win.ch - 1); 1, win.ch - 1);
XftDrawRect(xw.draw, &drawcol, XftDrawRect(xw.draw, &drawcol,
borderpx + cx * win.cw, win.hborderpx + cx * win.cw,
borderpx + (cy + 1) * win.ch - 1, win.vborderpx + (cy + 1) * win.ch - 1,
win.cw, 1); win.cw, 1);
} }
} }
@ -1850,6 +1856,12 @@ kpress(XEvent *ev)
} else { } else {
len = XLookupString(e, buf, sizeof buf, &ksym, NULL); len = XLookupString(e, buf, sizeof buf, &ksym, NULL);
} }
if ( IS_SET(MODE_KBDSELECT) ) {
if ( match(XK_NO_MOD, e->state) ||
(XK_Shift_L | XK_Shift_R) & e->state )
win.mode ^= trt_kbdselect(ksym, buf, len);
return;
}
/* 1. shortcuts */ /* 1. shortcuts */
for (bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) { for (bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) {
if (ksym == bp->keysym && match(bp->mod, e->state)) { if (ksym == bp->keysym && match(bp->mod, e->state)) {
@ -2027,6 +2039,14 @@ usage(void)
" [stty_args ...]\n", argv0, argv0); " [stty_args ...]\n", argv0, argv0);
} }
void toggle_winmode(int flag) {
win.mode ^= flag;
}
void keyboard_select(const Arg *dummy) {
win.mode ^= trt_kbdselect(-1, NULL, 0);
}
int int
main(int argc, char *argv[]) main(int argc, char *argv[])
{ {