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Author SHA1 Message Date
3a6d6d7401 Fix for wide character being incorrectly cleared on MODE_INSERT
Under insert mode, when inserting a normal character in front of
a wide character, the affected region is shifted to the right by
one cell. However, the empty cell is reset as if being a part of a
wide character, causing the following cell being mishandled as a
dummy cell.
To reproduce the bug:
	printf '\033[4h' # set MODE_INSERT
	printf 妳好
	printf '\033[4D'
	printf 'x'
	printf '\033[4l\n'
2023-06-25 11:59:06 +02:00
211964d56e ignore C1 control characters in UTF-8 mode
Ignore processing and printing C1 control characters in UTF-8 mode.
These are in the range: 0x80 - 0x9f.

By default in st the mode is set to UTF-8.

This matches more the behaviour of xterm with the options -u8 or +u8 also.
Also see the xterm resource "allowC1Printable".

Let me know if this breaks something, in most cases I don't think so.

As usual a very good reference is:
https://invisible-island.net/xterm/ctlseqs/ctlseqs.html
2023-02-07 20:00:59 +01:00
f17abd25b3 Add support for DSR response "OK" escape sequence
"VT100 defines an escape sequence [1] called Device Status Report (DSR). When
the DSR sequence received is `csi 5n`, an "OK" response `csi 0n` is returned.
This patch adds that "OK" response.

I encountered this missing sequence when I noticed that fzf [2] would clobber
my prompt whenever completing a find.

To test that ST doesn't currently respond to `csi 5n`, use fzf's shell
extension in ST's repo to complete the path for a file.

    my-fancy-prompt $ vim **<tab>
    <select a file>
    st.c

Select a file with <enter>, and notice that fzf clobbers some or all of your
prompt.

After applying this patch, do the same test as above and notice that fzf has no
longer clobbered your prompt by placing the file name in the correct position
in your command.

    my-fancy-prompt $ vim **<tab>
    <select a file>
    my-fancy prompt $ vim st.c

Thank you for considering my first patch submission.

[1] https://www.xfree86.org/current/ctlseqs.html#VT100%20Mode
[2] https://github.com/junegunn/fzf
"

Patch slightly adapted with input from the mailinglist,
2023-02-07 19:57:34 +01:00
7e8050cc62 Fixed OSC color reset without parameter->resets all colors
Adapted from (garbled) patch by wim <wim@thinkerwim.org>

Additional notes: it should reset all the colors using xloadcols().
To reproduce: set a different (theme) color using some escape code, then reset
it:

	printf '\x1b]104\x07'
2023-02-05 13:29:35 +01:00
e5e959835b fix buffer overflow when handling long composed input
To reproduce the issue:

"
If you already have the multi-key enabled on your system, then add this line
to your ~/.XCompose file:

[...]
<question> <T> <E> <S> <T> <question> :
"1234567890123456789012345678901234567890123456789012345678901234567890"
"

Reported by and an initial patch by Andy Gozas <andy@gozas.me>, thanks!

Adapted the patch, for now st (like dmenu) handles a fixed amount of composed
characters, or otherwise ignores it. This is done for simplicity sake.
2022-10-25 17:11:11 +02:00
4 changed files with 242 additions and 488 deletions

View File

@ -5,7 +5,7 @@
*
* font: see http://freedesktop.org/software/fontconfig/fontconfig-user.html
*/
static char *font = "Iosevka NFM Light:size=12";
static char *font = "Liberation Mono:pixelsize=12:antialias=true:autohint=true";
static int borderpx = 2;
/*
@ -93,94 +93,46 @@ char *termname = "st-256color";
*/
unsigned int tabspaces = 8;
typedef struct {
const char* const colors[260]; /* terminal colors */
unsigned int fg; /* foreground */
unsigned int bg; /* background */
unsigned int cs; /* cursor */
unsigned int rcs; /* reverse cursor */
} ColorScheme;
/*
* Terminal colors (16 first used in escape sequence,
* 2 last for custom cursor color),
* foreground, background, cursor, reverse cursor
*/
static const ColorScheme schemes[] = {
// onenord (dark)
{{"#3B4252", "#E06C75", "#9EC183", "#EBCB8B",
"#81A1C1", "#B988B0", "#88C0D0", "#E5E9F0",
"#4C566A", "#E06C75", "#9EC183", "#EBCB8B",
"#81A1C1", "#B988B0", "#8FBCBB", "#ECEFF4",
[256]="#81A1C1", "#555555", "#E5E9F0", "#2E3440"}, 258, 259, 256, 257},
/* Terminal colors (16 first used in escape sequence) */
static const char *colorname[] = {
/* 8 normal colors */
"black",
"red3",
"green3",
"yellow3",
"blue2",
"magenta3",
"cyan3",
"gray90",
// onenord (light)
{{"#2E3440", "#CB4F53", "#48A53D", "#EE5E25",
"#3879C5", "#9F4ACA", "#3EA1AD", "#E5E9F0",
"#646A76", "#D16366", "#5F9E9D", "#BA793E",
"#1B40A6", "#9665AF", "#8FBCBB", "#ECEFF4",
[256]="#3879C5", "#555555", "#2E3440", "#F7F8FA"}, 258, 259, 256, 257},
/* 8 bright colors */
"gray50",
"red",
"green",
"yellow",
"#5c5cff",
"magenta",
"cyan",
"white",
// One Half dark
{{"#282c34", "#e06c75", "#98c379", "#e5c07b",
"#61afef", "#c678dd", "#56b6c2", "#dcdfe4",
"#282c34", "#e06c75", "#98c379", "#e5c07b",
"#61afef", "#c678dd", "#56b6c2", "#dcdfe4",
[256]="#cccccc", "#555555", "black", "black"}, 7, 0, 256, 257},
[255] = 0,
// One Half light
{{"#fafafa", "#e45649", "#50a14f", "#c18401",
"#0184bc", "#a626a4", "#0997b3", "#383a42",
"#fafafa", "#e45649", "#50a14f", "#c18401",
"#0184bc", "#a626a4", "#0997b3", "#383a42",
[256]="#cccccc", "#555555", "black", "black"}, 7, 0, 256, 257},
// Solarized dark
{{"#073642", "#dc322f", "#859900", "#b58900",
"#268bd2", "#d33682", "#2aa198", "#eee8d5",
"#002b36", "#cb4b16", "#586e75", "#657b83",
"#839496", "#6c71c4", "#93a1a1", "#fdf6e3",
[256]="#93a1a1", "#fdf6e3", "black", "black"}, 12, 8, 256, 257},
// Solarized light
{{"#eee8d5", "#dc322f", "#859900", "#b58900",
"#268bd2", "#d33682", "#2aa198", "#073642",
"#fdf6e3", "#cb4b16", "#93a1a1", "#839496",
"#657b83", "#6c71c4", "#586e75", "#002b36",
[256]="#586e75", "#002b36", "black", "black"}, 12, 8, 256, 257},
// Gruvbox dark
{{"#282828", "#cc241d", "#98971a", "#d79921",
"#458588", "#b16286", "#689d6a", "#a89984",
"#928374", "#fb4934", "#b8bb26", "#fabd2f",
"#83a598", "#d3869b", "#8ec07c", "#ebdbb2",
[256]="#ebdbb2", "#555555", "black", "black"}, 15, 0, 256, 257},
// Gruvbox light
{{"#fbf1c7", "#cc241d", "#98971a", "#d79921",
"#458588", "#b16286", "#689d6a", "#7c6f64",
"#928374", "#9d0006", "#79740e", "#b57614",
"#076678", "#8f3f71", "#427b58", "#3c3836",
[256]="#3c3836", "#555555", "black", "black"}, 15, 0, 256, 257},
// st (dark)
{{"black", "red3", "green3", "yellow3",
"blue2", "magenta3", "cyan3", "gray90",
"gray50", "red", "green", "yellow",
"#5c5cff", "magenta", "cyan", "white",
[256]="#cccccc", "#555555", "black", "black"}, 7, 0, 256, 257},
/* more colors can be added after 255 to use with DefaultXX */
"#cccccc",
"#555555",
"gray90", /* default foreground colour */
"black", /* default background colour */
};
static const char * const * colorname;
int colorscheme = 0;
/*
* Default colors (colorname index)
* foreground, background, cursor, reverse cursor
*/
unsigned int defaultfg;
unsigned int defaultbg;
unsigned int defaultcs;
static unsigned int defaultrcs;
unsigned int defaultfg = 258;
unsigned int defaultbg = 259;
unsigned int defaultcs = 256;
static unsigned int defaultrcs = 257;
/*
* Default shape of cursor
@ -249,19 +201,6 @@ static Shortcut shortcuts[] = {
{ TERMMOD, XK_Y, selpaste, {.i = 0} },
{ ShiftMask, XK_Insert, selpaste, {.i = 0} },
{ TERMMOD, XK_Num_Lock, numlock, {.i = 0} },
{ MODKEY, XK_1, selectscheme, {.i = 0} },
{ MODKEY, XK_2, selectscheme, {.i = 1} },
{ MODKEY, XK_3, selectscheme, {.i = 2} },
{ MODKEY, XK_4, selectscheme, {.i = 3} },
{ MODKEY, XK_5, selectscheme, {.i = 4} },
{ MODKEY, XK_6, selectscheme, {.i = 5} },
{ MODKEY, XK_7, selectscheme, {.i = 6} },
{ MODKEY, XK_8, selectscheme, {.i = 7} },
{ MODKEY, XK_9, selectscheme, {.i = 8} },
{ MODKEY, XK_0, nextscheme, {.i = +1} },
{ MODKEY|ControlMask, XK_0, nextscheme, {.i = -1} },
{ ShiftMask, XK_Page_Up, kscrollup, {.i = -1} },
{ ShiftMask, XK_Page_Down, kscrolldown, {.i = -1} },
};
/*

409
st.c
View File

@ -43,10 +43,6 @@
#define ISCONTROL(c) (ISCONTROLC0(c) || ISCONTROLC1(c))
#define ISDELIM(u) (u && wcschr(worddelimiters, u))
#define TSCREEN term.screen[IS_SET(MODE_ALTSCREEN)]
#define TLINEOFFSET(y) (((y) + TSCREEN.cur - TSCREEN.off + TSCREEN.size) % TSCREEN.size)
#define TLINE(y) (TSCREEN.buffer[TLINEOFFSET(y)])
enum term_mode {
MODE_WRAP = 1 << 0,
MODE_INSERT = 1 << 1,
@ -113,21 +109,12 @@ typedef struct {
int alt;
} Selection;
/* Screen lines */
typedef struct {
Line* buffer; /* ring buffer */
int size; /* size of buffer */
int cur; /* start of active screen */
int off; /* scrollback line offset */
TCursor sc; /* saved cursor */
} LineBuffer;
/* Internal representation of the screen */
typedef struct {
int row; /* nb row */
int col; /* nb col */
LineBuffer screen[2]; /* screen and alternate screen */
int linelen; /* allocated line length */
Line *line; /* screen */
Line *alt; /* alternate screen */
int *dirty; /* dirtyness of lines */
TCursor c; /* cursor */
int ocx; /* old cursor col */
@ -216,8 +203,6 @@ static void tdeftran(char);
static void tstrsequence(uchar);
static void drawregion(int, int, int, int);
static void clearline(Line, Glyph, int, int);
static Line ensureline(Line);
static void selnormalize(void);
static void selscroll(int, int);
@ -423,12 +408,11 @@ int
tlinelen(int y)
{
int i = term.col;
Line line = TLINE(y);
if (line[i - 1].mode & ATTR_WRAP)
if (term.line[y][i - 1].mode & ATTR_WRAP)
return i;
while (i > 0 && line[i - 1].u == ' ')
while (i > 0 && term.line[y][i - 1].u == ' ')
--i;
return i;
@ -537,7 +521,7 @@ selsnap(int *x, int *y, int direction)
* Snap around if the word wraps around at the end or
* beginning of a line.
*/
prevgp = &TLINE(*y)[*x];
prevgp = &term.line[*y][*x];
prevdelim = ISDELIM(prevgp->u);
for (;;) {
newx = *x + direction;
@ -552,14 +536,14 @@ selsnap(int *x, int *y, int direction)
yt = *y, xt = *x;
else
yt = newy, xt = newx;
if (!(TLINE(yt)[xt].mode & ATTR_WRAP))
if (!(term.line[yt][xt].mode & ATTR_WRAP))
break;
}
if (newx >= tlinelen(newy))
break;
gp = &TLINE(newy)[newx];
gp = &term.line[newy][newx];
delim = ISDELIM(gp->u);
if (!(gp->mode & ATTR_WDUMMY) && (delim != prevdelim
|| (delim && gp->u != prevgp->u)))
@ -580,14 +564,14 @@ selsnap(int *x, int *y, int direction)
*x = (direction < 0) ? 0 : term.col - 1;
if (direction < 0) {
for (; *y > 0; *y += direction) {
if (!(TLINE(*y-1)[term.col-1].mode
if (!(term.line[*y-1][term.col-1].mode
& ATTR_WRAP)) {
break;
}
}
} else if (direction > 0) {
for (; *y < term.row-1; *y += direction) {
if (!(TLINE(*y)[term.col-1].mode
if (!(term.line[*y][term.col-1].mode
& ATTR_WRAP)) {
break;
}
@ -618,13 +602,13 @@ getsel(void)
}
if (sel.type == SEL_RECTANGULAR) {
gp = &TLINE(y)[sel.nb.x];
gp = &term.line[y][sel.nb.x];
lastx = sel.ne.x;
} else {
gp = &TLINE(y)[sel.nb.y == y ? sel.nb.x : 0];
gp = &term.line[y][sel.nb.y == y ? sel.nb.x : 0];
lastx = (sel.ne.y == y) ? sel.ne.x : term.col-1;
}
last = &TLINE(y)[MIN(lastx, linelen-1)];
last = &term.line[y][MIN(lastx, linelen-1)];
while (last >= gp && last->u == ' ')
--last;
@ -965,15 +949,12 @@ int
tattrset(int attr)
{
int i, j;
int y = TLINEOFFSET(0);
for (i = 0; i < term.row-1; i++) {
Line line = TSCREEN.buffer[y];
for (j = 0; j < term.col-1; j++) {
if (line[j].mode & attr)
if (term.line[i][j].mode & attr)
return 1;
}
y = (y+1) % TSCREEN.size;
}
return 0;
@ -995,17 +976,14 @@ void
tsetdirtattr(int attr)
{
int i, j;
int y = TLINEOFFSET(0);
for (i = 0; i < term.row-1; i++) {
Line line = TSCREEN.buffer[y];
for (j = 0; j < term.col-1; j++) {
if (line[j].mode & attr) {
if (term.line[i][j].mode & attr) {
tsetdirt(i, i);
break;
}
}
y = (y+1) % TSCREEN.size;
}
}
@ -1018,19 +996,27 @@ tfulldirt(void)
void
tcursor(int mode)
{
static TCursor c[2];
int alt = IS_SET(MODE_ALTSCREEN);
if (mode == CURSOR_SAVE) {
TSCREEN.sc = term.c;
c[alt] = term.c;
} else if (mode == CURSOR_LOAD) {
term.c = TSCREEN.sc;
tmoveto(term.c.x, term.c.y);
term.c = c[alt];
tmoveto(c[alt].x, c[alt].y);
}
}
void
treset(void)
{
int i, j;
Glyph g = (Glyph){ .fg = defaultfg, .bg = defaultbg};
uint i;
term.c = (TCursor){{
.mode = ATTR_NULL,
.fg = defaultfg,
.bg = defaultbg
}, .x = 0, .y = 0, .state = CURSOR_DEFAULT};
memset(term.tabs, 0, term.col * sizeof(*term.tabs));
for (i = tabspaces; i < term.col; i += tabspaces)
@ -1042,37 +1028,17 @@ treset(void)
term.charset = 0;
for (i = 0; i < 2; i++) {
term.screen[i].sc = (TCursor){{
.fg = defaultfg,
.bg = defaultbg
}};
term.screen[i].cur = 0;
term.screen[i].off = 0;
for (j = 0; j < term.row; ++j) {
if (term.col != term.linelen)
term.screen[i].buffer[j] = xrealloc(term.screen[i].buffer[j], term.col * sizeof(Glyph));
clearline(term.screen[i].buffer[j], g, 0, term.col);
}
for (j = term.row; j < term.screen[i].size; ++j) {
free(term.screen[i].buffer[j]);
term.screen[i].buffer[j] = NULL;
}
tmoveto(0, 0);
tcursor(CURSOR_SAVE);
tclearregion(0, 0, term.col-1, term.row-1);
tswapscreen();
}
tcursor(CURSOR_LOAD);
term.linelen = term.col;
tfulldirt();
}
void
tnew(int col, int row)
{
int i;
term = (Term){};
term.screen[0].buffer = xmalloc(HISTSIZE * sizeof(Line));
term.screen[0].size = HISTSIZE;
term.screen[1].buffer = NULL;
for (i = 0; i < HISTSIZE; ++i) term.screen[0].buffer[i] = NULL;
term = (Term){ .c = { .attr = { .fg = defaultfg, .bg = defaultbg } } };
tresize(col, row);
treset();
}
@ -1080,42 +1046,14 @@ tnew(int col, int row)
void
tswapscreen(void)
{
Line *tmp = term.line;
term.line = term.alt;
term.alt = tmp;
term.mode ^= MODE_ALTSCREEN;
tfulldirt();
}
void
kscrollup(const Arg *a)
{
int n = a->i;
if (IS_SET(MODE_ALTSCREEN))
return;
if (n < 0) n = (-n) * term.row;
if (n > TSCREEN.size - term.row - TSCREEN.off) n = TSCREEN.size - term.row - TSCREEN.off;
while (!TLINE(-n)) --n;
TSCREEN.off += n;
selscroll(0, n);
tfulldirt();
}
void
kscrolldown(const Arg *a)
{
int n = a->i;
if (IS_SET(MODE_ALTSCREEN))
return;
if (n < 0) n = (-n) * term.row;
if (n > TSCREEN.off) n = TSCREEN.off;
TSCREEN.off -= n;
selscroll(0, -n);
tfulldirt();
}
void
tscrolldown(int orig, int n)
{
@ -1124,29 +1062,15 @@ tscrolldown(int orig, int n)
LIMIT(n, 0, term.bot-orig+1);
/* Ensure that lines are allocated */
for (i = -n; i < 0; i++) {
TLINE(i) = ensureline(TLINE(i));
tsetdirt(orig, term.bot-n);
tclearregion(0, term.bot-n+1, term.col-1, term.bot);
for (i = term.bot; i >= orig+n; i--) {
temp = term.line[i];
term.line[i] = term.line[i-n];
term.line[i-n] = temp;
}
/* Shift non-scrolling areas in ring buffer */
for (i = term.bot+1; i < term.row; i++) {
temp = TLINE(i);
TLINE(i) = TLINE(i-n);
TLINE(i-n) = temp;
}
for (i = 0; i < orig; i++) {
temp = TLINE(i);
TLINE(i) = TLINE(i-n);
TLINE(i-n) = temp;
}
/* Scroll buffer */
TSCREEN.cur = (TSCREEN.cur + TSCREEN.size - n) % TSCREEN.size;
/* Clear lines that have entered the view */
tclearregion(0, orig, term.linelen-1, orig+n-1);
/* Redraw portion of the screen that has scrolled */
tsetdirt(orig+n-1, term.bot);
selscroll(orig, n);
}
@ -1158,29 +1082,15 @@ tscrollup(int orig, int n)
LIMIT(n, 0, term.bot-orig+1);
/* Ensure that lines are allocated */
for (i = term.row; i < term.row + n; i++) {
TLINE(i) = ensureline(TLINE(i));
tclearregion(0, orig, term.col-1, orig+n-1);
tsetdirt(orig+n, term.bot);
for (i = orig; i <= term.bot-n; i++) {
temp = term.line[i];
term.line[i] = term.line[i+n];
term.line[i+n] = temp;
}
/* Shift non-scrolling areas in ring buffer */
for (i = orig-1; i >= 0; i--) {
temp = TLINE(i);
TLINE(i) = TLINE(i+n);
TLINE(i+n) = temp;
}
for (i = term.row-1; i >term.bot; i--) {
temp = TLINE(i);
TLINE(i) = TLINE(i+n);
TLINE(i+n) = temp;
}
/* Scroll buffer */
TSCREEN.cur = (TSCREEN.cur + n) % TSCREEN.size;
/* Clear lines that have entered the view */
tclearregion(0, term.bot-n+1, term.linelen-1, term.bot);
/* Redraw portion of the screen that has scrolled */
tsetdirt(orig, term.bot-n+1);
selscroll(orig, -n);
}
@ -1284,7 +1194,6 @@ tsetchar(Rune u, const Glyph *attr, int x, int y)
"", "", "", "", "", "", "", "", /* p - w */
"", "", "", "π", "", "£", "·", /* x - ~ */
};
Line line = TLINE(y);
/*
* The table is proudly stolen from rxvt.
@ -1293,25 +1202,25 @@ tsetchar(Rune u, const Glyph *attr, int x, int y)
BETWEEN(u, 0x41, 0x7e) && vt100_0[u - 0x41])
utf8decode(vt100_0[u - 0x41], &u, UTF_SIZ);
if (line[x].mode & ATTR_WIDE) {
if (term.line[y][x].mode & ATTR_WIDE) {
if (x+1 < term.col) {
line[x+1].u = ' ';
line[x+1].mode &= ~ATTR_WDUMMY;
term.line[y][x+1].u = ' ';
term.line[y][x+1].mode &= ~ATTR_WDUMMY;
}
} else if (line[x].mode & ATTR_WDUMMY) {
line[x-1].u = ' ';
line[x-1].mode &= ~ATTR_WIDE;
} else if (term.line[y][x].mode & ATTR_WDUMMY) {
term.line[y][x-1].u = ' ';
term.line[y][x-1].mode &= ~ATTR_WIDE;
}
term.dirty[y] = 1;
line[x] = *attr;
line[x].u = u;
term.line[y][x] = *attr;
term.line[y][x].u = u;
}
void
tclearregion(int x1, int y1, int x2, int y2)
{
int x, y, L, S, temp;
int x, y, temp;
Glyph *gp;
if (x1 > x2)
@ -1319,16 +1228,15 @@ tclearregion(int x1, int y1, int x2, int y2)
if (y1 > y2)
temp = y1, y1 = y2, y2 = temp;
LIMIT(x1, 0, term.linelen-1);
LIMIT(x2, 0, term.linelen-1);
LIMIT(x1, 0, term.col-1);
LIMIT(x2, 0, term.col-1);
LIMIT(y1, 0, term.row-1);
LIMIT(y2, 0, term.row-1);
L = TLINEOFFSET(y1);
for (y = y1; y <= y2; y++) {
term.dirty[y] = 1;
for (x = x1; x <= x2; x++) {
gp = &TSCREEN.buffer[L][x];
gp = &term.line[y][x];
if (selected(x, y))
selclear();
gp->fg = term.c.attr.fg;
@ -1336,7 +1244,6 @@ tclearregion(int x1, int y1, int x2, int y2)
gp->mode = 0;
gp->u = ' ';
}
L = (L + 1) % TSCREEN.size;
}
}
@ -1351,7 +1258,7 @@ tdeletechar(int n)
dst = term.c.x;
src = term.c.x + n;
size = term.col - src;
line = TLINE(term.c.y);
line = term.line[term.c.y];
memmove(&line[dst], &line[src], size * sizeof(Glyph));
tclearregion(term.col-n, term.c.y, term.col-1, term.c.y);
@ -1368,7 +1275,7 @@ tinsertblank(int n)
dst = term.c.x + n;
src = term.c.x;
size = term.col - dst;
line = TLINE(term.c.y);
line = term.line[term.c.y];
memmove(&line[dst], &line[src], size * sizeof(Glyph));
tclearregion(src, term.c.y, dst - 1, term.c.y);
@ -1862,11 +1769,18 @@ csihandle(void)
case 'm': /* SGR -- Terminal attribute (color) */
tsetattr(csiescseq.arg, csiescseq.narg);
break;
case 'n': /* DSR Device Status Report (cursor position) */
if (csiescseq.arg[0] == 6) {
case 'n': /* DSR -- Device Status Report */
switch (csiescseq.arg[0]) {
case 5: /* Status Report "OK" `0n` */
ttywrite("\033[0n", sizeof("\033[0n") - 1, 0);
break;
case 6: /* Report Cursor Position (CPR) "<row>;<column>R" */
len = snprintf(buf, sizeof(buf), "\033[%i;%iR",
term.c.y+1, term.c.x+1);
term.c.y+1, term.c.x+1);
ttywrite(buf, len, 0);
break;
default:
goto unknown;
}
break;
case 'r': /* DECSTBM -- Set Scrolling Region */
@ -2025,8 +1939,10 @@ strhandle(void)
if (p && !strcmp(p, "?")) {
osc_color_response(j, 0, 1);
} else if (xsetcolorname(j, p)) {
if (par == 104 && narg <= 1)
if (par == 104 && narg <= 1) {
xloadcols();
return; /* color reset without parameter */
}
fprintf(stderr, "erresc: invalid color j=%d, p=%s\n",
j, p ? p : "(null)");
} else {
@ -2162,7 +2078,7 @@ tdumpline(int n)
char buf[UTF_SIZ];
const Glyph *bp, *end;
bp = &TLINE(n)[0];
bp = &term.line[n][0];
end = &bp[MIN(tlinelen(n), term.col) - 1];
if (bp != end || bp->u != ' ') {
for ( ; bp <= end; ++bp)
@ -2255,28 +2171,6 @@ tstrsequence(uchar c)
term.esc |= ESC_STR;
}
void
tupdatebgcolor(int oldbg, int newbg)
{
for (int y = 0; y < term.row; y++) {
for (int x = 0; x < term.col; x++) {
if (TLINE(y)[x].bg == oldbg)
TLINE(y)[x].bg = newbg;
}
}
}
void
tupdatefgcolor(int oldfg, int newfg)
{
for (int y = 0; y < term.row; y++) {
for (int x = 0; x < term.col; x++) {
if (TLINE(y)[x].fg == oldfg)
TLINE(y)[x].fg = newfg;
}
}
}
void
tcontrolcode(uchar ascii)
{
@ -2528,6 +2422,9 @@ check_control_code:
* they must not cause conflicts with sequences.
*/
if (control) {
/* in UTF-8 mode ignore handling C1 control characters */
if (IS_SET(MODE_UTF8) && ISCONTROLC1(u))
return;
tcontrolcode(u);
/*
* control codes are not shown ever
@ -2567,19 +2464,21 @@ check_control_code:
if (selected(term.c.x, term.c.y))
selclear();
gp = &TLINE(term.c.y)[term.c.x];
gp = &term.line[term.c.y][term.c.x];
if (IS_SET(MODE_WRAP) && (term.c.state & CURSOR_WRAPNEXT)) {
gp->mode |= ATTR_WRAP;
tnewline(1);
gp = &TLINE(term.c.y)[term.c.x];
gp = &term.line[term.c.y][term.c.x];
}
if (IS_SET(MODE_INSERT) && term.c.x+width < term.col)
if (IS_SET(MODE_INSERT) && term.c.x+width < term.col) {
memmove(gp+width, gp, (term.col - term.c.x - width) * sizeof(Glyph));
gp->mode &= ~ATTR_WIDE;
}
if (term.c.x+width > term.col) {
tnewline(1);
gp = &TLINE(term.c.y)[term.c.x];
gp = &term.line[term.c.y][term.c.x];
}
tsetchar(u, &term.c.attr, term.c.x, term.c.y);
@ -2610,11 +2509,6 @@ twrite(const char *buf, int buflen, int show_ctrl)
Rune u;
int n;
if (TSCREEN.off) {
TSCREEN.off = 0;
tfulldirt();
}
for (n = 0; n < buflen; n += charsize) {
if (IS_SET(MODE_UTF8)) {
/* process a complete utf8 char */
@ -2640,86 +2534,57 @@ twrite(const char *buf, int buflen, int show_ctrl)
return n;
}
void
clearline(Line line, Glyph g, int x, int xend)
{
int i;
g.mode = 0;
g.u = ' ';
for (i = x; i < xend; ++i) {
line[i] = g;
}
}
Line
ensureline(Line line)
{
if (!line) {
line = xmalloc(term.linelen * sizeof(Glyph));
}
return line;
}
void
tresize(int col, int row)
{
int i, j;
int i;
int minrow = MIN(row, term.row);
int mincol = MIN(col, term.col);
int linelen = MAX(col, term.linelen);
int *bp;
TCursor c;
if (col < 1 || row < 1 || row > HISTSIZE) {
if (col < 1 || row < 1) {
fprintf(stderr,
"tresize: error resizing to %dx%d\n", col, row);
return;
}
/* Shift buffer to keep the cursor where we expect it */
if (row <= term.c.y) {
term.screen[0].cur = (term.screen[0].cur - row + term.c.y + 1) % term.screen[0].size;
/*
* slide screen to keep cursor where we expect it -
* tscrollup would work here, but we can optimize to
* memmove because we're freeing the earlier lines
*/
for (i = 0; i <= term.c.y - row; i++) {
free(term.line[i]);
free(term.alt[i]);
}
/* Resize and clear line buffers as needed */
if (linelen > term.linelen) {
for (i = 0; i < term.screen[0].size; ++i) {
if (term.screen[0].buffer[i]) {
term.screen[0].buffer[i] = xrealloc(term.screen[0].buffer[i], linelen * sizeof(Glyph));
clearline(term.screen[0].buffer[i], term.c.attr, term.linelen, linelen);
}
}
for (i = 0; i < minrow; ++i) {
term.screen[1].buffer[i] = xrealloc(term.screen[1].buffer[i], linelen * sizeof(Glyph));
clearline(term.screen[1].buffer[i], term.c.attr, term.linelen, linelen);
}
/* ensure that both src and dst are not NULL */
if (i > 0) {
memmove(term.line, term.line + i, row * sizeof(Line));
memmove(term.alt, term.alt + i, row * sizeof(Line));
}
/* Allocate all visible lines for regular line buffer */
for (j = term.screen[0].cur, i = 0; i < row; ++i, j = (j + 1) % term.screen[0].size)
{
if (!term.screen[0].buffer[j]) {
term.screen[0].buffer[j] = xmalloc(linelen * sizeof(Glyph));
}
if (i >= term.row) {
clearline(term.screen[0].buffer[j], term.c.attr, 0, linelen);
}
}
/* Resize alt screen */
term.screen[1].cur = 0;
term.screen[1].size = row;
for (i = row; i < term.row; ++i) {
free(term.screen[1].buffer[i]);
}
term.screen[1].buffer = xrealloc(term.screen[1].buffer, row * sizeof(Line));
for (i = term.row; i < row; ++i) {
term.screen[1].buffer[i] = xmalloc(linelen * sizeof(Glyph));
clearline(term.screen[1].buffer[i], term.c.attr, 0, linelen);
for (i += row; i < term.row; i++) {
free(term.line[i]);
free(term.alt[i]);
}
/* resize to new height */
term.line = xrealloc(term.line, row * sizeof(Line));
term.alt = xrealloc(term.alt, row * sizeof(Line));
term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty));
term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs));
/* fix tabstops */
/* resize each row to new width, zero-pad if needed */
for (i = 0; i < minrow; i++) {
term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph));
term.alt[i] = xrealloc(term.alt[i], col * sizeof(Glyph));
}
/* allocate any new rows */
for (/* i = minrow */; i < row; i++) {
term.line[i] = xmalloc(col * sizeof(Glyph));
term.alt[i] = xmalloc(col * sizeof(Glyph));
}
if (col > term.col) {
bp = term.tabs + term.col;
@ -2729,16 +2594,26 @@ tresize(int col, int row)
for (bp += tabspaces; bp < term.tabs + col; bp += tabspaces)
*bp = 1;
}
/* update terminal size */
term.col = col;
term.row = row;
term.linelen = linelen;
/* reset scrolling region */
tsetscroll(0, row-1);
/* make use of the LIMIT in tmoveto */
tmoveto(term.c.x, term.c.y);
tfulldirt();
/* Clearing both screens (it makes dirty all lines) */
c = term.c;
for (i = 0; i < 2; i++) {
if (mincol < col && 0 < minrow) {
tclearregion(mincol, 0, col - 1, minrow - 1);
}
if (0 < col && minrow < row) {
tclearregion(0, minrow, col - 1, row - 1);
}
tswapscreen();
tcursor(CURSOR_LOAD);
}
term.c = c;
}
void
@ -2750,15 +2625,14 @@ resettitle(void)
void
drawregion(int x1, int y1, int x2, int y2)
{
int y, L;
int y;
L = TLINEOFFSET(y1);
for (y = y1; y < y2; y++) {
if (term.dirty[y]) {
term.dirty[y] = 0;
xdrawline(TSCREEN.buffer[L], x1, y, x2);
}
L = (L + 1) % TSCREEN.size;
if (!term.dirty[y])
continue;
term.dirty[y] = 0;
xdrawline(term.line[y], x1, y, x2);
}
}
@ -2773,15 +2647,14 @@ draw(void)
/* adjust cursor position */
LIMIT(term.ocx, 0, term.col-1);
LIMIT(term.ocy, 0, term.row-1);
if (TLINE(term.ocy)[term.ocx].mode & ATTR_WDUMMY)
if (term.line[term.ocy][term.ocx].mode & ATTR_WDUMMY)
term.ocx--;
if (TLINE(term.c.y)[cx].mode & ATTR_WDUMMY)
if (term.line[term.c.y][cx].mode & ATTR_WDUMMY)
cx--;
drawregion(0, 0, term.col, term.row);
if (TSCREEN.off == 0)
xdrawcursor(cx, term.c.y, TLINE(term.c.y)[cx],
term.ocx, term.ocy, TLINE(term.ocy)[term.ocx]);
xdrawcursor(cx, term.c.y, term.line[term.c.y][cx],
term.ocx, term.ocy, term.line[term.ocy][term.ocx]);
term.ocx = cx;
term.ocy = term.c.y;
xfinishdraw();

9
st.h
View File

@ -19,7 +19,6 @@
#define TRUECOLOR(r,g,b) (1 << 24 | (r) << 16 | (g) << 8 | (b))
#define IS_TRUECOL(x) (1 << 24 & (x))
#define HISTSIZE 2000
enum glyph_attribute {
ATTR_NULL = 0,
@ -37,12 +36,6 @@ enum glyph_attribute {
ATTR_BOLD_FAINT = ATTR_BOLD | ATTR_FAINT,
};
enum drawing_mode {
DRAW_NONE = 0,
DRAW_BG = 1 << 0,
DRAW_FG = 1 << 1,
};
enum selection_mode {
SEL_IDLE = 0,
SEL_EMPTY = 1,
@ -97,8 +90,6 @@ int tattrset(int);
void tnew(int, int);
void tresize(int, int);
void tsetdirtattr(int);
void tupdatebgcolor(int, int);
void tupdatefgcolor(int, int);
void ttyhangup(void);
int ttynew(const char *, char *, const char *, char **);
size_t ttyread(void);

189
x.c
View File

@ -59,10 +59,6 @@ static void zoom(const Arg *);
static void zoomabs(const Arg *);
static void zoomreset(const Arg *);
static void ttysend(const Arg *);
static void nextscheme(const Arg *);
static void selectscheme(const Arg *);
void kscrollup(const Arg *);
void kscrolldown(const Arg *);
/* config.h for applying patches and the configuration. */
#include "config.h"
@ -146,7 +142,7 @@ typedef struct {
static inline ushort sixd_to_16bit(int);
static int xmakeglyphfontspecs(XftGlyphFontSpec *, const Glyph *, int, int, int);
static void xdrawglyphfontspecs(const XftGlyphFontSpec *, Glyph, int, int, int, int);
static void xdrawglyphfontspecs(const XftGlyphFontSpec *, Glyph, int, int, int);
static void xdrawglyph(Glyph, int, int);
static void xclear(int, int, int, int);
static int xgeommasktogravity(int);
@ -189,7 +185,6 @@ static void mousesel(XEvent *, int);
static void mousereport(XEvent *);
static char *kmap(KeySym, uint);
static int match(uint, uint);
static void updatescheme(void);
static void run(void);
static void usage(void);
@ -806,7 +801,7 @@ xloadcols(void)
for (cp = dc.col; cp < &dc.col[dc.collen]; ++cp)
XftColorFree(xw.dpy, xw.vis, xw.cmap, cp);
} else {
dc.collen = 260;
dc.collen = MAX(LEN(colorname), 256);
dc.col = xmalloc(dc.collen * sizeof(Color));
}
@ -1377,7 +1372,7 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x
}
void
xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y, int dmode)
xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y)
{
int charlen = len * ((base.mode & ATTR_WIDE) ? 2 : 1);
int winx = borderpx + x * win.cw, winy = borderpx + y * win.ch,
@ -1468,40 +1463,47 @@ xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, i
if (base.mode & ATTR_INVISIBLE)
fg = bg;
if (dmode & DRAW_BG) {
/* Intelligent cleaning up of the borders. */
if (x == 0) {
xclear(0, (y == 0)? 0 : winy, borderpx,
winy + win.ch +
((winy + win.ch >= borderpx + win.th)? win.h : 0));
}
if (winx + width >= borderpx + win.tw) {
xclear(winx + width, (y == 0)? 0 : winy, win.w,
((winy + win.ch >= borderpx + win.th)? win.h : (winy + win.ch)));
}
if (y == 0)
xclear(winx, 0, winx + width, borderpx);
if (winy + win.ch >= borderpx + win.th)
xclear(winx, winy + win.ch, winx + width, win.h);
/* Fill the background */
XftDrawRect(xw.draw, bg, winx, winy, width, win.ch);
}
/* Intelligent cleaning up of the borders. */
if (x == 0) {
xclear(0, (y == 0)? 0 : winy, borderpx,
winy + win.ch +
((winy + win.ch >= borderpx + win.th)? win.h : 0));
}
if (winx + width >= borderpx + win.tw) {
xclear(winx + width, (y == 0)? 0 : winy, win.w,
((winy + win.ch >= borderpx + win.th)? win.h : (winy + win.ch)));
}
if (y == 0)
xclear(winx, 0, winx + width, borderpx);
if (winy + win.ch >= borderpx + win.th)
xclear(winx, winy + win.ch, winx + width, win.h);
if (dmode & DRAW_FG) {
/* Render the glyphs. */
XftDrawGlyphFontSpec(xw.draw, fg, specs, len);
/* Clean up the region we want to draw to. */
XftDrawRect(xw.draw, bg, winx, winy, width, win.ch);
/* Render underline and strikethrough. */
if (base.mode & ATTR_UNDERLINE) {
XftDrawRect(xw.draw, fg, winx, winy + dc.font.ascent + 1,
width, 1);
}
/* Set the clip region because Xft is sometimes dirty. */
r.x = 0;
r.y = 0;
r.height = win.ch;
r.width = width;
XftDrawSetClipRectangles(xw.draw, winx, winy, &r, 1);
if (base.mode & ATTR_STRUCK) {
XftDrawRect(xw.draw, fg, winx, winy + 2 * dc.font.ascent / 3,
width, 1);
}
}
/* Render the glyphs. */
XftDrawGlyphFontSpec(xw.draw, fg, specs, len);
/* Render underline and strikethrough. */
if (base.mode & ATTR_UNDERLINE) {
XftDrawRect(xw.draw, fg, winx, winy + dc.font.ascent * chscale + 1,
width, 1);
}
if (base.mode & ATTR_STRUCK) {
XftDrawRect(xw.draw, fg, winx, winy + 2 * dc.font.ascent * chscale / 3,
width, 1);
}
/* Reset clip to none. */
XftDrawSetClip(xw.draw, 0);
}
void
@ -1511,7 +1513,7 @@ xdrawglyph(Glyph g, int x, int y)
XftGlyphFontSpec spec;
numspecs = xmakeglyphfontspecs(&spec, &g, 1, x, y);
xdrawglyphfontspecs(&spec, g, numspecs, x, y, DRAW_BG | DRAW_FG);
xdrawglyphfontspecs(&spec, g, numspecs, x, y);
}
void
@ -1646,39 +1648,32 @@ xstartdraw(void)
void
xdrawline(Line line, int x1, int y1, int x2)
{
int i, x, ox, numspecs, numspecs_cached;
int i, x, ox, numspecs;
Glyph base, new;
XftGlyphFontSpec *specs;
XftGlyphFontSpec *specs = xw.specbuf;
numspecs_cached = xmakeglyphfontspecs(xw.specbuf, &line[x1], x2 - x1, x1, y1);
/* Draw line in 2 passes: background and foreground. This way wide glyphs
won't get truncated (#223) */
for (int dmode = DRAW_BG; dmode <= DRAW_FG; dmode <<= 1) {
specs = xw.specbuf;
numspecs = numspecs_cached;
i = ox = 0;
for (x = x1; x < x2 && i < numspecs; x++) {
new = line[x];
if (new.mode == ATTR_WDUMMY)
continue;
if (selected(x, y1))
new.mode ^= ATTR_REVERSE;
if (i > 0 && ATTRCMP(base, new)) {
xdrawglyphfontspecs(specs, base, i, ox, y1, dmode);
specs += i;
numspecs -= i;
i = 0;
}
if (i == 0) {
ox = x;
base = new;
}
i++;
numspecs = xmakeglyphfontspecs(specs, &line[x1], x2 - x1, x1, y1);
i = ox = 0;
for (x = x1; x < x2 && i < numspecs; x++) {
new = line[x];
if (new.mode == ATTR_WDUMMY)
continue;
if (selected(x, y1))
new.mode ^= ATTR_REVERSE;
if (i > 0 && ATTRCMP(base, new)) {
xdrawglyphfontspecs(specs, base, i, ox, y1);
specs += i;
numspecs -= i;
i = 0;
}
if (i > 0)
xdrawglyphfontspecs(specs, base, i, ox, y1, dmode);
if (i == 0) {
ox = x;
base = new;
}
i++;
}
if (i > 0)
xdrawglyphfontspecs(specs, base, i, ox, y1);
}
void
@ -1838,7 +1833,7 @@ void
kpress(XEvent *ev)
{
XKeyEvent *e = &ev->xkey;
KeySym ksym;
KeySym ksym = NoSymbol;
char buf[64], *customkey;
int len;
Rune c;
@ -1848,10 +1843,13 @@ kpress(XEvent *ev)
if (IS_SET(MODE_KBDLOCK))
return;
if (xw.ime.xic)
if (xw.ime.xic) {
len = XmbLookupString(xw.ime.xic, e, buf, sizeof buf, &ksym, &status);
else
if (status == XBufferOverflow)
return;
} else {
len = XLookupString(e, buf, sizeof buf, &ksym, NULL);
}
/* 1. shortcuts */
for (bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) {
if (ksym == bp->keysym && match(bp->mod, e->state)) {
@ -2029,47 +2027,6 @@ usage(void)
" [stty_args ...]\n", argv0, argv0);
}
void
nextscheme(const Arg *arg)
{
colorscheme += arg->i;
if (colorscheme >= (int)LEN(schemes))
colorscheme = 0;
else if (colorscheme < 0)
colorscheme = LEN(schemes) - 1;
updatescheme();
}
void
selectscheme(const Arg *arg)
{
if (BETWEEN(arg->i, 0, LEN(schemes)-1)) {
colorscheme = arg->i;
updatescheme();
}
}
void
updatescheme(void)
{
int oldbg, oldfg;
oldbg = defaultbg;
oldfg = defaultfg;
colorname = schemes[colorscheme].colors;
defaultbg = schemes[colorscheme].bg;
defaultfg = schemes[colorscheme].fg;
defaultcs = schemes[colorscheme].cs;
defaultrcs = schemes[colorscheme].rcs;
xloadcols();
if (defaultbg != oldbg)
tupdatebgcolor(oldbg, defaultbg);
if (defaultfg != oldfg)
tupdatefgcolor(oldfg, defaultfg);
cresize(win.w, win.h);
redraw();
}
int
main(int argc, char *argv[])
{
@ -2122,12 +2079,6 @@ main(int argc, char *argv[])
} ARGEND;
run:
colorname = schemes[colorscheme].colors;
defaultbg = schemes[colorscheme].bg;
defaultfg = schemes[colorscheme].fg;
defaultcs = schemes[colorscheme].cs;
defaultrcs = schemes[colorscheme].rcs;
if (argc > 0) /* eat all remaining arguments */
opt_cmd = argv;