#define ISCONTROLC0(c) (BETWEEN(c, 0, 0x1f) || (c) == '\177')
#define ISCONTROLC1(c) (BETWEEN(c, 0x80, 0x9f))
#define ISCONTROL(c) (ISCONTROLC0(c) || ISCONTROLC1(c))
+#define ISDELIM(u) (BETWEEN(u, 0, 127) && strchr(worddelimiters, u) != NULL)
#define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)
#define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || (a).bg != (b).bg)
#define IS_SET(flag) ((term.mode & (flag)) != 0)
WIN_FOCUSED = 2
};
+enum selection_mode {
+ SEL_IDLE = 0,
+ SEL_EMPTY = 1,
+ SEL_READY = 2
+};
+
enum selection_type {
SEL_REGULAR = 1,
SEL_RECTANGULAR = 2
typedef XftColor Color;
typedef struct {
- char c[UTF_SIZ]; /* character code */
+ long u; /* character code */
ushort mode; /* attribute flags */
- uint32_t fg; /* foreground */
- uint32_t bg; /* background */
+ ushort fg; /* foreground */
+ ushort bg; /* background */
} Glyph;
typedef Glyph *Line;
static void tnew(int, int);
static void tnewline(int);
static void tputtab(int);
-static void tputc(char *, int);
+static void tputc(long);
static void treset(void);
static void tresize(int, int);
static void tscrollup(int, int);
static void tscrolldown(int, int);
static void tsetattr(int *, int);
-static void tsetchar(char *, Glyph *, int, int);
+static void tsetchar(long, Glyph *, int, int);
static void tsetscroll(int, int);
static void tswapscreen(void);
static void tsetdirt(int, int);
static void tsetdirtattr(int);
static void tsetmode(bool, bool, int *, int);
static void tfulldirt(void);
-static void techo(char *, int);
+static void techo(long);
static void tcontrolcode(uchar );
static void tdectest(char );
static int32_t tdefcolor(int *, int *, int);
static inline ushort sixd_to_16bit(int);
static void xdraws(char *, Glyph, int, int, int, int);
+static void xdrawglyph(Glyph, int, int);
static void xhints(void);
static void xclear(int, int, int, int);
static void xdrawcursor(void);
static char *getsel(void);
static void selcopy(Time);
static void selscroll(int, int);
-static void selsnap(int, int *, int *, int);
+static void selsnap(int *, int *, int);
static int x2col(int);
static int y2row(int);
static void getbuttoninfo(XEvent *);
static long utf8decodebyte(char, size_t *);
static size_t utf8encode(long, char *);
static char utf8encodebyte(long, size_t);
-static size_t utf8len(char *);
static size_t utf8validate(long *, size_t);
static ssize_t xwrite(int, const char *, size_t);
return utfbyte[i] | (u & ~utfmask[i]);
}
-size_t
-utf8len(char *c) {
- return utf8decode(c, &(long){0}, UTF_SIZ);
-}
-
size_t
utf8validate(long *u, size_t i) {
if(!BETWEEN(*u, utfmin[i], utfmax[i]) || BETWEEN(*u, 0xD800, 0xDFFF))
selinit(void) {
memset(&sel.tclick1, 0, sizeof(sel.tclick1));
memset(&sel.tclick2, 0, sizeof(sel.tclick2));
- sel.mode = 0;
+ sel.mode = SEL_IDLE;
sel.ob.x = -1;
sel.primary = NULL;
sel.clipboard = NULL;
if(term.line[y][i - 1].mode & ATTR_WRAP)
return i;
- while(i > 0 && term.line[y][i - 1].c[0] == ' ')
+ while(i > 0 && term.line[y][i - 1].u == ' ')
--i;
return i;
selnormalize(void) {
int i;
- if(sel.ob.y == sel.oe.y || sel.type == SEL_RECTANGULAR) {
- sel.nb.x = MIN(sel.ob.x, sel.oe.x);
- sel.ne.x = MAX(sel.ob.x, sel.oe.x);
- } else {
+ if(sel.type == SEL_REGULAR && sel.ob.y != sel.oe.y) {
sel.nb.x = sel.ob.y < sel.oe.y ? sel.ob.x : sel.oe.x;
sel.ne.x = sel.ob.y < sel.oe.y ? sel.oe.x : sel.ob.x;
+ } else {
+ sel.nb.x = MIN(sel.ob.x, sel.oe.x);
+ sel.ne.x = MAX(sel.ob.x, sel.oe.x);
}
sel.nb.y = MIN(sel.ob.y, sel.oe.y);
sel.ne.y = MAX(sel.ob.y, sel.oe.y);
- selsnap(sel.snap, &sel.nb.x, &sel.nb.y, -1);
- selsnap(sel.snap, &sel.ne.x, &sel.ne.y, +1);
+ selsnap(&sel.nb.x, &sel.nb.y, -1);
+ selsnap(&sel.ne.x, &sel.ne.y, +1);
/* expand selection over line breaks */
if (sel.type == SEL_RECTANGULAR)
bool
selected(int x, int y) {
+ if(sel.mode == SEL_EMPTY)
+ return false;
+
if(sel.type == SEL_RECTANGULAR)
return BETWEEN(y, sel.nb.y, sel.ne.y)
&& BETWEEN(x, sel.nb.x, sel.ne.x);
}
void
-selsnap(int mode, int *x, int *y, int direction) {
+selsnap(int *x, int *y, int direction) {
int newx, newy, xt, yt;
bool delim, prevdelim;
Glyph *gp, *prevgp;
- switch(mode) {
+ switch(sel.snap) {
case SNAP_WORD:
/*
* Snap around if the word wraps around at the end or
* beginning of a line.
*/
prevgp = &term.line[*y][*x];
- prevdelim = strchr(worddelimiters, prevgp->c[0]) != NULL;
+ prevdelim = ISDELIM(prevgp->u);
for(;;) {
newx = *x + direction;
newy = *y;
break;
gp = &term.line[newy][newx];
- delim = strchr(worddelimiters, gp->c[0]) != NULL;
+ delim = ISDELIM(gp->u);
if(!(gp->mode & ATTR_WDUMMY) && (delim != prevdelim
- || (delim && gp->c[0] != prevgp->c[0])))
+ || (delim && gp->u != prevgp->u)))
break;
*x = newx;
* previous line will be selected.
*/
*x = (direction < 0) ? 0 : term.col - 1;
- if(direction < 0 && *y > 0) {
+ if(direction < 0) {
for(; *y > 0; *y += direction) {
if(!(term.line[*y-1][term.col-1].mode
& ATTR_WRAP)) {
break;
}
}
- } else if(direction > 0 && *y < term.row-1) {
- for(; *y < term.row; *y += direction) {
+ } else if(direction > 0) {
+ for(; *y < term.row-1; *y += direction) {
if(!(term.line[*y][term.col-1].mode
& ATTR_WRAP)) {
break;
}
if(!IS_SET(MODE_MOUSEX10)) {
- button += (state & ShiftMask ? 4 : 0)
- + (state & Mod4Mask ? 8 : 0)
- + (state & ControlMask ? 16 : 0);
+ button += ((state & ShiftMask ) ? 4 : 0)
+ + ((state & Mod4Mask ) ? 8 : 0)
+ + ((state & ControlMask) ? 16 : 0);
}
- len = 0;
if(IS_SET(MODE_MOUSESGR)) {
len = snprintf(buf, sizeof(buf), "\033[<%d;%d;%d%c",
button, x+1, y+1,
/* Clear previous selection, logically and visually. */
selclear(NULL);
- sel.mode = 1;
+ sel.mode = SEL_EMPTY;
sel.type = SEL_REGULAR;
sel.oe.x = sel.ob.x = x2col(e->xbutton.x);
sel.oe.y = sel.ob.y = y2row(e->xbutton.y);
}
selnormalize();
- /*
- * Draw selection, unless it's regular and we don't want to
- * make clicks visible
- */
- if(sel.snap != 0) {
- sel.mode++;
- tsetdirt(sel.nb.y, sel.ne.y);
- }
+ if(sel.snap != 0)
+ sel.mode = SEL_READY;
+ tsetdirt(sel.nb.y, sel.ne.y);
sel.tclick2 = sel.tclick1;
sel.tclick1 = now;
}
char *
getsel(void) {
char *str, *ptr;
- int y, bufsize, size, lastx, linelen;
+ int y, bufsize, lastx, linelen;
Glyph *gp, *last;
if(sel.ob.x == -1)
lastx = (sel.ne.y == y) ? sel.ne.x : term.col-1;
}
last = &term.line[y][MIN(lastx, linelen-1)];
- while(last >= gp && last->c[0] == ' ')
+ while(last >= gp && last->u == ' ')
--last;
for( ; gp <= last; ++gp) {
if(gp->mode & ATTR_WDUMMY)
continue;
- size = utf8len(gp->c);
- memcpy(ptr, gp->c, size);
- ptr += size;
+ ptr += utf8encode(gp->u, ptr);
}
/*
xev.selection = xsre->selection;
xev.target = xsre->target;
xev.time = xsre->time;
- if (xsre->property == None)
- xsre->property = xsre->target;
+ if (xsre->property == None)
+ xsre->property = xsre->target;
/* reject */
xev.property = None;
sel.primary = str;
XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, t);
- if (XGetSelectionOwner(xw.dpy, XA_PRIMARY) != xw.win)
- selclear(0);
+ if (XGetSelectionOwner(xw.dpy, XA_PRIMARY) != xw.win)
+ selclear(0);
}
void
if(e->xbutton.button == Button2) {
selpaste(NULL);
} else if(e->xbutton.button == Button1) {
- if(sel.mode < 2) {
- selclear(NULL);
- } else {
+ if(sel.mode == SEL_READY) {
getbuttoninfo(e);
selcopy(e->xbutton.time);
- }
- sel.mode = 0;
+ } else
+ selclear(NULL);
+ sel.mode = SEL_IDLE;
tsetdirt(sel.nb.y, sel.ne.y);
}
}
if(!sel.mode)
return;
- sel.mode++;
+ sel.mode = SEL_READY;
oldey = sel.oe.y;
oldex = sel.oe.x;
oldsby = sel.nb.y;
void
sigchld(int a) {
int stat, ret;
+ pid_t p;
- if(waitpid(pid, &stat, 0) < 0)
+ if((p = waitpid(pid, &stat, WNOHANG)) < 0)
die("Waiting for pid %hd failed: %s\n", pid, strerror(errno));
+ if(pid != p)
+ return;
+
ret = WIFEXITED(stat) ? WEXITSTATUS(stat) : EXIT_FAILURE;
if (ret != EXIT_SUCCESS)
die("child finished with error '%d'\n", stat);
static char buf[BUFSIZ];
static int buflen = 0;
char *ptr;
- char s[UTF_SIZ];
int charsize; /* size of utf8 char in bytes */
long unicodep;
int ret;
buflen += ret;
ptr = buf;
while((charsize = utf8decode(ptr, &unicodep, buflen))) {
- utf8encode(unicodep, s);
- tputc(s, charsize);
+ tputc(unicodep);
ptr += charsize;
buflen -= charsize;
}
void
ttysend(char *s, size_t n) {
+ int len;
+ long u;
+
ttywrite(s, n);
if(IS_SET(MODE_ECHO))
- techo(s, n);
+ while((len = utf8decode(s, &u, n)) > 0) {
+ techo(u);
+ n -= len;
+ s += len;
+ }
}
void
}
void
-tsetchar(char *c, Glyph *attr, int x, int y) {
+tsetchar(long u, Glyph *attr, int x, int y) {
static char *vt100_0[62] = { /* 0x41 - 0x7e */
"↑", "↓", "→", "←", "█", "▚", "☃", /* A - G */
0, 0, 0, 0, 0, 0, 0, 0, /* H - O */
/*
* The table is proudly stolen from rxvt.
*/
- if(term.trantbl[term.charset] == CS_GRAPHIC0) {
- if(BETWEEN(c[0], 0x41, 0x7e) && vt100_0[c[0] - 0x41]) {
- c = vt100_0[c[0] - 0x41];
- }
- }
+ if(term.trantbl[term.charset] == CS_GRAPHIC0 &&
+ BETWEEN(u, 0x41, 0x7e) && vt100_0[u - 0x41])
+ utf8decode(vt100_0[u - 0x41], &u, UTF_SIZ);
if(term.line[y][x].mode & ATTR_WIDE) {
if(x+1 < term.col) {
- term.line[y][x+1].c[0] = ' ';
+ term.line[y][x+1].u = ' ';
term.line[y][x+1].mode &= ~ATTR_WDUMMY;
}
} else if(term.line[y][x].mode & ATTR_WDUMMY) {
- term.line[y][x-1].c[0] = ' ';
+ term.line[y][x-1].u = ' ';
term.line[y][x-1].mode &= ~ATTR_WIDE;
}
term.dirty[y] = 1;
term.line[y][x] = *attr;
- memcpy(term.line[y][x].c, c, UTF_SIZ);
+ term.line[y][x].u = u;
}
void
gp->fg = term.c.attr.fg;
gp->bg = term.c.attr.bg;
gp->mode = 0;
- memcpy(gp->c, " ", 2);
+ gp->u = ' ';
}
}
}
b = attr[*npar + 4];
*npar += 4;
if(!BETWEEN(r, 0, 255) || !BETWEEN(g, 0, 255) || !BETWEEN(b, 0, 255))
- fprintf(stderr, "erresc: bad rgb color (%d,%d,%d)\n",
+ fprintf(stderr, "erresc: bad rgb color (%u,%u,%u)\n",
r, g, b);
else
idx = TRUECOLOR(r, g, b);
void
tdumpline(int n) {
+ char buf[UTF_SIZ];
Glyph *bp, *end;
bp = &term.line[n][0];
end = &bp[MIN(tlinelen(n), term.col) - 1];
- if(bp != end || bp->c[0] != ' ') {
+ if(bp != end || bp->u != ' ') {
for( ;bp <= end; ++bp)
- tprinter(bp->c, utf8len(bp->c));
+ tprinter(buf, utf8encode(bp->u, buf));
}
tprinter("\n", 1);
}
}
void
-techo(char *buf, int len) {
- for(; len > 0; buf++, len--) {
- char c = *buf;
-
- if(ISCONTROL((uchar) c)) { /* control code */
- if(c & 0x80) {
- c &= 0x7f;
- tputc("^", 1);
- tputc("[", 1);
- } else if(c != '\n' && c != '\r' && c != '\t') {
- c ^= 0x40;
- tputc("^", 1);
- }
- tputc(&c, 1);
- } else {
- break;
+techo(long u) {
+ if(ISCONTROL(u)) { /* control code */
+ if(u & 0x80) {
+ u &= 0x7f;
+ tputc('^');
+ tputc('[');
+ } else if(u != '\n' && u != '\r' && u != '\t') {
+ u ^= 0x40;
+ tputc('^');
}
}
- if(len)
- tputc(buf, len);
+ tputc(u);
}
void
void
tdectest(char c) {
- static char E[UTF_SIZ] = "E";
int x, y;
if(c == '8') { /* DEC screen alignment test. */
for(x = 0; x < term.col; ++x) {
for(y = 0; y < term.row; ++y)
- tsetchar(E, &term.c.attr, x, y);
+ tsetchar('E', &term.c.attr, x, y);
}
}
}
void
tcontrolcode(uchar ascii) {
- static char question[UTF_SIZ] = "?";
-
switch(ascii) {
case '\t': /* HT */
tputtab(1);
term.charset = 1 - (ascii - '\016');
return;
case '\032': /* SUB */
- tsetchar(question, &term.c.attr, term.c.x, term.c.y);
+ tsetchar('?', &term.c.attr, term.c.x, term.c.y);
case '\030': /* CAN */
csireset();
break;
}
void
-tputc(char *c, int len) {
- uchar ascii;
+tputc(long u) {
+ char c[UTF_SIZ];
bool control;
- long unicodep;
- int width;
+ int width, len;
Glyph *gp;
- if(len == 1) {
+ len = utf8encode(u, c);
+ if((width = wcwidth(u)) == -1) {
+ memcpy(c, "\357\277\275", 4); /* UTF_INVALID */
width = 1;
- unicodep = ascii = *c;
- } else {
- utf8decode(c, &unicodep, UTF_SIZ);
- if ((width = wcwidth(unicodep)) == -1) {
- c = "\357\277\275"; /* UTF_INVALID */
- width = 1;
- }
- ascii = unicodep;
}
if(IS_SET(MODE_PRINT))
tprinter(c, len);
- control = ISCONTROL(unicodep);
+ control = ISCONTROL(u);
/*
* STR sequence must be checked before anything else
* character.
*/
if(term.esc & ESC_STR) {
- if(len == 1 &&
- (ascii == '\a' || ascii == 030 ||
- ascii == 032 || ascii == 033 ||
- ISCONTROLC1(unicodep))) {
+ if(u == '\a' || u == 030 || u == 032 || u == 033 ||
+ ISCONTROLC1(u)) {
term.esc &= ~(ESC_START|ESC_STR);
term.esc |= ESC_STR_END;
} else if(strescseq.len + len < sizeof(strescseq.buf) - 1) {
* they must not cause conflicts with sequences.
*/
if(control) {
- tcontrolcode(ascii);
+ tcontrolcode(u);
/*
* control codes are not shown ever
*/
return;
} else if(term.esc & ESC_START) {
if(term.esc & ESC_CSI) {
- csiescseq.buf[csiescseq.len++] = ascii;
- if(BETWEEN(ascii, 0x40, 0x7E)
+ csiescseq.buf[csiescseq.len++] = u;
+ if(BETWEEN(u, 0x40, 0x7E)
|| csiescseq.len >= \
sizeof(csiescseq.buf)-1) {
term.esc = 0;
}
return;
} else if(term.esc & ESC_ALTCHARSET) {
- tdeftran(ascii);
+ tdeftran(u);
} else if(term.esc & ESC_TEST) {
- tdectest(ascii);
+ tdectest(u);
} else {
- if (!eschandle(ascii))
+ if (!eschandle(u))
return;
/* sequence already finished */
}
gp = &term.line[term.c.y][term.c.x];
}
- tsetchar(c, &term.c.attr, term.c.x, term.c.y);
+ tsetchar(u, &term.c.attr, term.c.x, term.c.y);
if(width == 2) {
gp->mode |= ATTR_WIDE;
if(term.c.x+1 < term.col) {
- gp[1].c[0] = '\0';
+ gp[1].u = '\0';
gp[1].mode = ATTR_WDUMMY;
}
}
XftDrawSetClip(xw.draw, 0);
}
+void
+xdrawglyph(Glyph g, int x, int y) {
+ static char buf[UTF_SIZ];
+ size_t len = utf8encode(g.u, buf);
+ int width = g.mode & ATTR_WIDE ? 2 : 1;
+
+ xdraws(buf, g, x, y, width, len);
+}
+
void
xdrawcursor(void) {
static int oldx = 0, oldy = 0;
- int sl, width, curx;
- Glyph g = {{' '}, ATTR_NULL, defaultbg, defaultcs};
+ int curx;
+ Glyph g = {' ', ATTR_NULL, defaultbg, defaultcs};
LIMIT(oldx, 0, term.col-1);
LIMIT(oldy, 0, term.row-1);
if(term.line[term.c.y][curx].mode & ATTR_WDUMMY)
curx--;
- memcpy(g.c, term.line[term.c.y][term.c.x].c, UTF_SIZ);
+ g.u = term.line[term.c.y][term.c.x].u;
/* remove the old cursor */
- sl = utf8len(term.line[oldy][oldx].c);
- width = (term.line[oldy][oldx].mode & ATTR_WIDE)? 2 : 1;
- xdraws(term.line[oldy][oldx].c, term.line[oldy][oldx], oldx,
- oldy, width, sl);
+ xdrawglyph(term.line[oldy][oldx], oldx, oldy);
if(IS_SET(MODE_HIDE))
return;
g.bg = defaultfg;
}
- sl = utf8len(g.c);
- width = (term.line[term.c.y][curx].mode & ATTR_WIDE)\
- ? 2 : 1;
- xdraws(g.c, g, term.c.x, term.c.y, width, sl);
+ g.mode |= term.line[term.c.y][curx].mode & ATTR_WIDE;
+ xdrawglyph(g, term.c.x, term.c.y);
break;
case 3: /* Blinking Underline */
case 4: /* Steady Underline */
void
drawregion(int x1, int y1, int x2, int y2) {
- int ic, ib, x, y, ox, sl;
+ int ic, ib, x, y, ox;
Glyph base, new;
char buf[DRAW_BUF_SIZ];
bool ena_sel = sel.ob.x != -1 && sel.alt == IS_SET(MODE_ALTSCREEN);
base = new;
}
- sl = utf8len(new.c);
- memcpy(buf+ib, new.c, sl);
- ib += sl;
+ ib += utf8encode(new.u, buf+ib);
ic += (new.mode & ATTR_WIDE)? 2 : 1;
}
if(ib > 0)
