st/patch/keyboardselect_reflow_st.c

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2024-03-13 10:33:51 +01:00
#include <wctype.h>
enum keyboardselect_mode {
KBDS_MODE_MOVE = 0,
KBDS_MODE_SELECT = 1<<1,
KBDS_MODE_LSELECT = 1<<2,
KBDS_MODE_FIND = 1<<3,
KBDS_MODE_SEARCH = 1<<4,
};
enum cursor_wrap {
KBDS_WRAP_NONE = 0,
KBDS_WRAP_LINE = 1<<0,
KBDS_WRAP_EDGE = 1<<1,
};
typedef struct {
int x;
int y;
Line line;
int len;
} KCursor;
static int kbds_in_use, kbds_quant;
static int kbds_seltype = SEL_REGULAR;
static int kbds_mode, kbds_directsearch;
static int kbds_searchlen, kbds_searchdir, kbds_searchcase;
static int kbds_finddir, kbds_findtill;
static Glyph *kbds_searchstr;
static Rune kbds_findchar;
static KCursor kbds_c, kbds_oc;
void
kbds_drawstatusbar(int y)
{
static char *modes[] = { " MOVE ", "", " SELECT ", " RSELECT ", " LSELECT ",
" SEARCH FW ", " SEARCH BW ", " FIND FW ", " FIND BW " };
static char quant[20] = { ' ' };
static Glyph g;
int i, n, m;
int mlen, qlen;
if (!kbds_in_use)
return;
g.mode = ATTR_REVERSE;
g.fg = defaultfg;
g.bg = defaultbg;
if (y == 0) {
if (kbds_issearchmode())
m = 5 + (kbds_searchdir < 0 ? 1 : 0);
else if (kbds_mode & KBDS_MODE_FIND)
m = 7 + (kbds_finddir < 0 ? 1 : 0);
else if (kbds_mode & KBDS_MODE_SELECT)
m = 2 + (kbds_seltype == SEL_RECTANGULAR ? 1 : 0);
else
m = kbds_mode;
mlen = strlen(modes[m]);
qlen = kbds_quant ? snprintf(quant+1, sizeof quant-1, "%i", kbds_quant) + 1 : 0;
if (kbds_c.y != y || kbds_c.x < term.col - qlen - mlen) {
for (n = mlen, i = term.col-1; i >= 0 && n > 0; i--) {
g.u = modes[m][--n];
xdrawglyph(g, i, y);
}
for (n = qlen; i >= 0 && n > 0; i--) {
g.u = quant[--n];
xdrawglyph(g, i, y);
}
}
}
if (y == term.row-1 && kbds_issearchmode()) {
for (g.u = ' ', i = 0; i < term.col; i++)
xdrawglyph(g, i, y);
g.u = (kbds_searchdir > 0) ? '/' : '?';
xdrawglyph(g, 0, y);
for (i = 0; i < kbds_searchlen; i++) {
g.u = kbds_searchstr[i].u;
g.mode = kbds_searchstr[i].mode | ATTR_WIDE | ATTR_REVERSE;
if (g.u == ' ' || g.mode & ATTR_WDUMMY)
continue;
xdrawglyph(g, i + 1, y);
}
g.u = ' ';
g.mode = ATTR_NULL;
xdrawglyph(g, i + 1, y);
}
}
void
kbds_pasteintosearch(const char *data, int len, int append)
{
static char buf[BUFSIZ];
static int buflen;
Rune u;
int l, n, charsize;
if (!append)
buflen = 0;
for (; len > 0; len -= l, data += l) {
l = MIN(sizeof(buf) - buflen, len);
memmove(buf + buflen, data, l);
buflen += l;
for (n = 0; n < buflen; n += charsize) {
if (IS_SET(MODE_UTF8)) {
/* process a complete utf8 char */
charsize = utf8decode(buf + n, &u, buflen - n);
if (charsize == 0)
break;
} else {
u = buf[n] & 0xFF;
charsize = 1;
}
if (u > 0x1f && kbds_searchlen < term.col-2) {
kbds_searchstr[kbds_searchlen].u = u;
kbds_searchstr[kbds_searchlen++].mode = ATTR_NULL;
if (wcwidth(u) > 1) {
kbds_searchstr[kbds_searchlen-1].mode = ATTR_WIDE;
if (kbds_searchlen < term.col-2) {
kbds_searchstr[kbds_searchlen].u = 0;
kbds_searchstr[kbds_searchlen++].mode = ATTR_WDUMMY;
}
}
}
}
buflen -= n;
/* keep any incomplete UTF-8 byte sequence for the next call */
if (buflen > 0)
memmove(buf, buf + n, buflen);
}
term.dirty[term.row-1] = 1;
}
int
kbds_top(void)
{
return IS_SET(MODE_ALTSCREEN) ? 0 : -term.histf + term.scr;
}
int
kbds_bot(void)
{
return IS_SET(MODE_ALTSCREEN) ? term.row-1 : term.row-1 + term.scr;
}
int
kbds_iswrapped(KCursor *c)
{
return c->len > 0 && (c->line[c->len-1].mode & ATTR_WRAP);
}
int
kbds_isselectmode(void)
{
return kbds_in_use && (kbds_mode & (KBDS_MODE_SELECT | KBDS_MODE_LSELECT));
}
int
kbds_issearchmode(void)
{
return kbds_in_use && (kbds_mode & KBDS_MODE_SEARCH);
}
void
kbds_setmode(int mode)
{
kbds_mode = mode;
term.dirty[0] = 1;
}
void
kbds_selecttext(void)
{
if (kbds_isselectmode()) {
if (kbds_mode & KBDS_MODE_LSELECT)
selextend(term.col-1, kbds_c.y, SEL_RECTANGULAR, 0);
else
selextend(kbds_c.x, kbds_c.y, kbds_seltype, 0);
if (sel.mode == SEL_IDLE)
kbds_setmode(kbds_mode & ~(KBDS_MODE_SELECT | KBDS_MODE_LSELECT));
}
}
void
kbds_copytoclipboard(void)
{
if (kbds_mode & KBDS_MODE_LSELECT) {
selextend(term.col-1, kbds_c.y, SEL_RECTANGULAR, 1);
sel.type = SEL_REGULAR;
} else {
selextend(kbds_c.x, kbds_c.y, kbds_seltype, 1);
}
xsetsel(getsel());
#if !CLIPBOARD_PATCH
xclipcopy();
#endif // CLIPBOARD_PATCH
}
void
kbds_clearhighlights(void)
{
int x, y;
Line line;
for (y = (IS_SET(MODE_ALTSCREEN) ? 0 : -term.histf); y < term.row; y++) {
line = TLINEABS(y);
for (x = 0; x < term.col; x++)
line[x].mode &= ~ATTR_HIGHLIGHT;
}
tfulldirt();
}
int
kbds_moveto(int x, int y)
{
if (y < 0)
kscrollup(&((Arg){ .i = -y }));
else if (y >= term.row)
kscrolldown(&((Arg){ .i = y - term.row + 1 }));
kbds_c.x = (x < 0) ? 0 : (x > term.col-1) ? term.col-1 : x;
kbds_c.y = (y < 0) ? 0 : (y > term.row-1) ? term.row-1 : y;
kbds_c.line = TLINE(kbds_c.y);
kbds_c.len = tlinelen(kbds_c.line);
if (kbds_c.x > 0 && (kbds_c.line[kbds_c.x].mode & ATTR_WDUMMY))
kbds_c.x--;
}
int
kbds_moveforward(KCursor *c, int dx, int wrap)
{
KCursor n = *c;
n.x += dx;
if (n.x >= 0 && n.x < term.col && (n.line[n.x].mode & ATTR_WDUMMY))
n.x += dx;
if (n.x < 0) {
if (!wrap || --n.y < kbds_top())
return 0;
n.line = TLINE(n.y);
n.len = tlinelen(n.line);
if ((wrap & KBDS_WRAP_LINE) && kbds_iswrapped(&n))
n.x = n.len-1;
else if (wrap & KBDS_WRAP_EDGE)
n.x = term.col-1;
else
return 0;
n.x -= (n.x > 0 && (n.line[n.x].mode & ATTR_WDUMMY)) ? 1 : 0;
} else if (n.x >= term.col) {
if (((wrap & KBDS_WRAP_EDGE) ||
((wrap & KBDS_WRAP_LINE) && kbds_iswrapped(&n))) && ++n.y <= kbds_bot()) {
n.line = TLINE(n.y);
n.len = tlinelen(n.line);
n.x = 0;
} else {
return 0;
}
} else if (n.x >= n.len && dx > 0 && (wrap & KBDS_WRAP_LINE)) {
if (n.x == n.len && kbds_iswrapped(&n) && n.y < kbds_bot()) {
++n.y;
n.line = TLINE(n.y);
n.len = tlinelen(n.line);
n.x = 0;
} else if (!(wrap & KBDS_WRAP_EDGE)) {
return 0;
}
}
*c = n;
return 1;
}
int
kbds_ismatch(KCursor c)
{
KCursor m = c;
int i, next;
if (c.x + kbds_searchlen > c.len && (!kbds_iswrapped(&c) || c.y >= kbds_bot()))
return 0;
for (next = 0, i = 0; i < kbds_searchlen; i++) {
if (kbds_searchstr[i].mode & ATTR_WDUMMY)
continue;
if ((next++ && !kbds_moveforward(&c, 1, KBDS_WRAP_LINE)) ||
(kbds_searchcase && kbds_searchstr[i].u != c.line[c.x].u) ||
(!kbds_searchcase && kbds_searchstr[i].u != towlower(c.line[c.x].u)))
return 0;
}
for (i = 0; i < kbds_searchlen; i++) {
if (!(kbds_searchstr[i].mode & ATTR_WDUMMY)) {
m.line[m.x].mode |= ATTR_HIGHLIGHT;
kbds_moveforward(&m, 1, KBDS_WRAP_LINE);
}
}
return 1;
}
int
kbds_searchall(void)
{
KCursor c;
int count = 0;
if (!kbds_searchlen)
return 0;
for (c.y = kbds_top(); c.y <= kbds_bot(); c.y++) {
c.line = TLINE(c.y);
c.len = tlinelen(c.line);
for (c.x = 0; c.x < c.len; c.x++)
count += kbds_ismatch(c);
}
tfulldirt();
return count;
}
void
kbds_searchnext(int dir)
{
KCursor c = kbds_c, n = kbds_c;
int wrapped = 0;
if (!kbds_searchlen) {
kbds_quant = 0;
return;
}
if (dir < 0 && c.x > c.len)
c.x = c.len;
for (kbds_quant = MAX(kbds_quant, 1); kbds_quant > 0;) {
if (!kbds_moveforward(&c, dir, KBDS_WRAP_LINE)) {
c.y += dir;
if (c.y < kbds_top())
c.y = kbds_bot(), wrapped++;
else if (c.y > kbds_bot())
c.y = kbds_top(), wrapped++;
if (wrapped > 1)
break;;
c.line = TLINE(c.y);
c.len = tlinelen(c.line);
c.x = (dir < 0 && c.len > 0) ? c.len-1 : 0;
c.x -= (c.x > 0 && (c.line[c.x].mode & ATTR_WDUMMY)) ? 1 : 0;
}
if (kbds_ismatch(c)) {
n = c;
kbds_quant--;
}
}
kbds_moveto(n.x, n.y);
kbds_quant = 0;
}
void
kbds_findnext(int dir, int repeat)
{
KCursor prev, c = kbds_c, n = kbds_c;
int skipfirst, yoff = 0;
if (c.len <= 0 || kbds_findchar == 0) {
kbds_quant = 0;
return;
}
if (dir < 0 && c.x > c.len)
c.x = c.len;
kbds_quant = MAX(kbds_quant, 1);
skipfirst = (kbds_quant == 1 && repeat && kbds_findtill);
while (kbds_quant > 0) {
prev = c;
if (!kbds_moveforward(&c, dir, KBDS_WRAP_LINE))
break;
if (c.line[c.x].u == kbds_findchar) {
if (skipfirst && prev.x == kbds_c.x && prev.y == kbds_c.y) {
skipfirst = 0;
continue;
}
n.x = kbds_findtill ? prev.x : c.x;
n.y = c.y;
yoff = kbds_findtill ? prev.y - c.y : 0;
kbds_quant--;
}
}
kbds_moveto(n.x, n.y);
kbds_moveto(kbds_c.x, kbds_c.y + yoff);
kbds_quant = 0;
}
int
kbds_isdelim(KCursor c, int xoff, wchar_t *delims)
{
if (xoff && !kbds_moveforward(&c, xoff, KBDS_WRAP_LINE))
return 1;
return wcschr(delims, c.line[c.x].u) != NULL;
}
void
kbds_nextword(int start, int dir, wchar_t *delims)
{
KCursor c = kbds_c, n = kbds_c;
int xoff = start ? -1 : 1;
if (dir < 0 && c.x > c.len)
c.x = c.len;
else if (dir > 0 && c.x >= c.len && c.len > 0)
c.x = c.len-1;
for (kbds_quant = MAX(kbds_quant, 1); kbds_quant > 0;) {
if (!kbds_moveforward(&c, dir, KBDS_WRAP_LINE)) {
c.y += dir;
if (c.y < kbds_top() || c.y > kbds_bot())
break;
c.line = TLINE(c.y);
c.len = tlinelen(c.line);
c.x = (dir < 0 && c.len > 0) ? c.len-1 : 0;
c.x -= (c.x > 0 && (c.line[c.x].mode & ATTR_WDUMMY)) ? 1 : 0;
}
if (c.len > 0 &&
!kbds_isdelim(c, 0, delims) && kbds_isdelim(c, xoff, delims)) {
n = c;
kbds_quant--;
}
}
kbds_moveto(n.x, n.y);
kbds_quant = 0;
}
int
kbds_drawcursor(void)
{
if (kbds_in_use && (!kbds_issearchmode() || kbds_c.y != term.row-1)) {
#if LIGATURES_PATCH
xdrawcursor(kbds_c.x, kbds_c.y, TLINE(kbds_c.y)[kbds_c.x],
kbds_oc.x, kbds_oc.y, TLINE(kbds_oc.y)[kbds_oc.x],
TLINE(kbds_oc.y), term.col);
#else
xdrawcursor(kbds_c.x, kbds_c.y, TLINE(kbds_c.y)[kbds_c.x],
kbds_oc.x, kbds_oc.y, TLINE(kbds_oc.y)[kbds_oc.x]);
#endif // LIGATURES_PATCH
kbds_moveto(kbds_c.x, kbds_c.y);
kbds_oc = kbds_c;
}
return term.scr != 0 || kbds_in_use;
}
int
kbds_keyboardhandler(KeySym ksym, char *buf, int len, int forcequit)
{
int i, q, dy, eol, islast, prevscr, count, wrap;
int alt = IS_SET(MODE_ALTSCREEN);
Line line;
Rune u;
if (kbds_issearchmode() && !forcequit) {
switch (ksym) {
case XK_Escape:
kbds_searchlen = 0;
/* FALLTHROUGH */
case XK_Return:
for (kbds_searchcase = 0, i = 0; i < kbds_searchlen; i++) {
if (kbds_searchstr[i].u != towlower(kbds_searchstr[i].u)) {
kbds_searchcase = 1;
break;
}
}
count = kbds_searchall();
kbds_searchnext(kbds_searchdir);
kbds_selecttext();
kbds_setmode(kbds_mode & ~KBDS_MODE_SEARCH);
if (count == 0 && kbds_directsearch)
ksym = XK_Escape;
break;
case XK_BackSpace:
if (kbds_searchlen) {
kbds_searchlen--;
if (kbds_searchlen && (kbds_searchstr[kbds_searchlen].mode & ATTR_WDUMMY))
kbds_searchlen--;
}
break;
default:
if (len < 1 || kbds_searchlen >= term.col-2)
return 0;
utf8decode(buf, &u, len);
kbds_searchstr[kbds_searchlen].u = u;
kbds_searchstr[kbds_searchlen++].mode = ATTR_NULL;
if (wcwidth(u) > 1) {
kbds_searchstr[kbds_searchlen-1].mode = ATTR_WIDE;
if (kbds_searchlen < term.col-2) {
kbds_searchstr[kbds_searchlen].u = 0;
kbds_searchstr[kbds_searchlen++].mode = ATTR_WDUMMY;
}
}
break;
}
/* If the direct search is aborted, we just go to the next switch
* statement and exit the keyboard selection mode immediately */
if (!(ksym == XK_Escape && kbds_directsearch)) {
term.dirty[term.row-1] = 1;
return 0;
}
} else if ((kbds_mode & KBDS_MODE_FIND) && !forcequit) {
kbds_findchar = 0;
switch (ksym) {
case XK_Escape:
case XK_Return:
kbds_quant = 0;
break;
default:
if (len < 1)
return 0;
utf8decode(buf, &kbds_findchar, len);
kbds_findnext(kbds_finddir, 0);
kbds_selecttext();
break;
}
kbds_setmode(kbds_mode & ~KBDS_MODE_FIND);
return 0;
}
switch (ksym) {
case -1:
kbds_searchstr = xmalloc(term.col * sizeof(Glyph));
kbds_in_use = 1;
kbds_moveto(term.c.x, term.c.y);
kbds_oc = kbds_c;
kbds_setmode(KBDS_MODE_MOVE);
return MODE_KBDSELECT;
case XK_V:
if (kbds_mode & KBDS_MODE_LSELECT) {
selclear();
kbds_setmode(kbds_mode & ~(KBDS_MODE_SELECT | KBDS_MODE_LSELECT));
} else if (kbds_mode & KBDS_MODE_SELECT) {
selextend(term.col-1, kbds_c.y, SEL_RECTANGULAR, 0);
sel.ob.x = 0;
tfulldirt();
kbds_setmode((kbds_mode ^ KBDS_MODE_SELECT) | KBDS_MODE_LSELECT);
} else {
selstart(0, kbds_c.y, 0);
selextend(term.col-1, kbds_c.y, SEL_RECTANGULAR, 0);
kbds_setmode(kbds_mode | KBDS_MODE_LSELECT);
}
break;
case XK_v:
if (kbds_mode & KBDS_MODE_SELECT) {
selclear();
kbds_setmode(kbds_mode & ~(KBDS_MODE_SELECT | KBDS_MODE_LSELECT));
} else if (kbds_mode & KBDS_MODE_LSELECT) {
selextend(kbds_c.x, kbds_c.y, kbds_seltype, 0);
kbds_setmode((kbds_mode ^ KBDS_MODE_LSELECT) | KBDS_MODE_SELECT);
} else {
selstart(kbds_c.x, kbds_c.y, 0);
kbds_setmode(kbds_mode | KBDS_MODE_SELECT);
}
break;
case XK_s:
if (!(kbds_mode & KBDS_MODE_LSELECT)) {
kbds_seltype ^= (SEL_REGULAR | SEL_RECTANGULAR);
selextend(kbds_c.x, kbds_c.y, kbds_seltype, 0);
}
break;
case XK_y:
case XK_Y:
if (kbds_isselectmode()) {
kbds_copytoclipboard();
selclear();
kbds_setmode(kbds_mode & ~(KBDS_MODE_SELECT | KBDS_MODE_LSELECT));
}
break;
case -2:
case -3:
case XK_slash:
case XK_KP_Divide:
case XK_question:
kbds_directsearch = (ksym == -2 || ksym == -3);
kbds_searchdir = (ksym == XK_question || ksym == -3) ? -1 : 1;
kbds_searchlen = 0;
kbds_setmode(kbds_mode | KBDS_MODE_SEARCH);
kbds_clearhighlights();
return 0;
case XK_q:
case XK_Escape:
if (!kbds_in_use)
return 0;
if (kbds_quant && !forcequit) {
kbds_quant = 0;
break;
}
selclear();
if (kbds_isselectmode() && !forcequit) {
kbds_setmode(KBDS_MODE_MOVE);
break;
}
kbds_setmode(KBDS_MODE_MOVE);
/* FALLTHROUGH */
case XK_Return:
if (kbds_isselectmode())
kbds_copytoclipboard();
kbds_in_use = kbds_quant = 0;
free(kbds_searchstr);
kscrolldown(&((Arg){ .i = term.histf }));
kbds_clearhighlights();
return MODE_KBDSELECT;
case XK_n:
case XK_N:
kbds_searchnext(ksym == XK_n ? kbds_searchdir : -kbds_searchdir);
break;
case XK_BackSpace:
kbds_moveto(0, kbds_c.y);
break;
case XK_exclam:
kbds_moveto(term.col/2, kbds_c.y);
break;
case XK_underscore:
kbds_moveto(term.col-1, kbds_c.y);
break;
case XK_dollar:
case XK_A:
eol = kbds_c.len-1;
line = kbds_c.line;
islast = (kbds_c.x == eol || (kbds_c.x == eol-1 && (line[eol-1].mode & ATTR_WIDE)));
if (islast && kbds_iswrapped(&kbds_c) && kbds_c.y < kbds_bot())
kbds_moveto(tlinelen(TLINE(kbds_c.y+1))-1, kbds_c.y+1);
else
kbds_moveto(islast ? term.col-1 : eol, kbds_c.y);
break;
case XK_asciicircum:
case XK_I:
for (i = 0; i < kbds_c.len && kbds_c.line[i].u == ' '; i++)
;
kbds_moveto((i < kbds_c.len) ? i : 0, kbds_c.y);
break;
case XK_End:
case XK_KP_End:
kbds_moveto(kbds_c.x, term.row-1);
break;
case XK_Home:
case XK_KP_Home:
case XK_H:
kbds_moveto(kbds_c.x, 0);
break;
case XK_M:
kbds_moveto(kbds_c.x, alt ? (term.row-1) / 2
: MIN(term.c.y + term.scr, term.row-1) / 2);
break;
case XK_L:
kbds_moveto(kbds_c.x, alt ? term.row-1
: MIN(term.c.y + term.scr, term.row-1));
break;
case XK_Page_Up:
case XK_KP_Page_Up:
case XK_K:
prevscr = term.scr;
kscrollup(&((Arg){ .i = term.row }));
kbds_moveto(kbds_c.x, alt ? 0
: MAX(0, kbds_c.y - term.row + term.scr - prevscr));
break;
case XK_Page_Down:
case XK_KP_Page_Down:
case XK_J:
prevscr = term.scr;
kscrolldown(&((Arg){ .i = term.row }));
kbds_moveto(kbds_c.x, alt ? term.row-1
: MIN(MIN(term.c.y + term.scr, term.row-1),
kbds_c.y + term.row + term.scr - prevscr));
break;
case XK_asterisk:
case XK_KP_Multiply:
kbds_moveto(term.col/2, (term.row-1) / 2);
break;
case XK_g:
kscrollup(&((Arg){ .i = term.histf }));
kbds_moveto(kbds_c.x, 0);
break;
case XK_G:
kscrolldown(&((Arg){ .i = term.histf }));
kbds_moveto(kbds_c.x, alt ? term.row-1 : term.c.y);
break;
case XK_b:
case XK_B:
kbds_nextword(1, -1, (ksym == XK_b) ? kbds_sdelim : kbds_ldelim);
break;
case XK_w:
case XK_W:
kbds_nextword(1, +1, (ksym == XK_w) ? kbds_sdelim : kbds_ldelim);
break;
case XK_e:
case XK_E:
kbds_nextword(0, +1, (ksym == XK_e) ? kbds_sdelim : kbds_ldelim);
break;
case XK_z:
prevscr = term.scr;
dy = kbds_c.y - (term.row-1) / 2;
if (dy <= 0)
kscrollup(&((Arg){ .i = -dy }));
else
kscrolldown(&((Arg){ .i = dy }));
kbds_moveto(kbds_c.x, kbds_c.y + term.scr - prevscr);
break;
case XK_f:
case XK_F:
case XK_t:
case XK_T:
kbds_finddir = (ksym == XK_f || ksym == XK_t) ? 1 : -1;
kbds_findtill = (ksym == XK_t || ksym == XK_T) ? 1 : 0;
kbds_setmode(kbds_mode | KBDS_MODE_FIND);
return 0;
case XK_semicolon:
case XK_r:
kbds_findnext(kbds_finddir, 1);
break;
case XK_comma:
case XK_R:
kbds_findnext(-kbds_finddir, 1);
break;
case XK_0:
case XK_KP_0:
if (!kbds_quant) {
kbds_moveto(0, kbds_c.y);
break;
}
/* FALLTHROUGH */
default:
if (ksym >= XK_0 && ksym <= XK_9) { /* 0-9 keyboard */
q = (kbds_quant * 10) + (ksym ^ XK_0);
kbds_quant = q <= 99999999 ? q : kbds_quant;
term.dirty[0] = 1;
return 0;
} else if (ksym >= XK_KP_0 && ksym <= XK_KP_9) { /* 0-9 numpad */
q = (kbds_quant * 10) + (ksym ^ XK_KP_0);
kbds_quant = q <= 99999999 ? q : kbds_quant;
term.dirty[0] = 1;
return 0;
} else if (ksym == XK_k || ksym == XK_h)
i = ksym & 1;
else if (ksym == XK_l || ksym == XK_j)
i = ((ksym & 6) | 4) >> 1;
else if (ksym >= XK_KP_Left && ksym <= XK_KP_Down)
i = ksym - XK_KP_Left;
else if ((XK_Home & ksym) != XK_Home || (i = (ksym ^ XK_Home) - 1) > 3)
return 0;
kbds_quant = (kbds_quant ? kbds_quant : 1);
if (i & 1) {
kbds_c.y += kbds_quant * (i & 2 ? 1 : -1);
} else {
for (;kbds_quant > 0; kbds_quant--) {
if (!kbds_moveforward(&kbds_c, (i & 2) ? 1 : -1,
KBDS_WRAP_LINE | KBDS_WRAP_EDGE))
break;
}
}
kbds_moveto(kbds_c.x, kbds_c.y);
}
kbds_selecttext();
kbds_quant = 0;
term.dirty[0] = 1;
return 0;
}