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Support xterm Ms feature to set clipboard

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This is used by, e.g., tmux.
This commit is contained in:
osandov@osandov.com 2017-03-18 11:55:04 +01:00 committed by Roberto E. Vargas Caballero
parent 20f713548d
commit e7ed326d2e
4 changed files with 59 additions and 1 deletions
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57
st.c
View file

@ -198,6 +198,8 @@ static char utf8encodebyte(Rune, size_t);
static char *utf8strchr(char *s, Rune u);
static size_t utf8validate(Rune *, size_t);
static char *base64dec(const char *);
static ssize_t xwrite(int, const char *, size_t);
static void *xrealloc(void *, size_t);
@ -369,6 +371,48 @@ utf8validate(Rune *u, size_t i)
return i;
}
static const char base64_digits[] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 62, 0, 0, 0,
63, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 0, 0, 0, -1, 0, 0, 0, 0, 1,
2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21,
22, 23, 24, 25, 0, 0, 0, 0, 0, 0, 26, 27, 28, 29, 30, 31, 32, 33, 34,
35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
char *
base64dec(const char *src)
{
size_t in_len = strlen(src);
char *result, *dst;
if (in_len % 4)
return NULL;
result = dst = xmalloc(in_len / 4 * 3 + 1);
while (*src) {
int a = base64_digits[(unsigned char) *src++];
int b = base64_digits[(unsigned char) *src++];
int c = base64_digits[(unsigned char) *src++];
int d = base64_digits[(unsigned char) *src++];
*dst++ = (a << 2) | ((b & 0x30) >> 4);
if (c == -1)
break;
*dst++ = ((b & 0x0f) << 4) | ((c & 0x3c) >> 2);
if (d == -1)
break;
*dst++ = ((c & 0x03) << 6) | d;
}
*dst = '\0';
return result;
}
void
selinit(void)
{
@ -1820,6 +1864,19 @@ strhandle(void)
if (narg > 1)
xsettitle(strescseq.args[1]);
return;
case 52:
if (narg > 2) {
char *dec;
dec = base64dec(strescseq.args[2]);
if (dec) {
xsetsel(dec, CurrentTime);
clipcopy(NULL);
} else {
fprintf(stderr, "erresc: invalid base64\n");
}
}
return;
case 4: /* color set */
if (narg < 3)
break;

1
st.info
View file

@ -189,6 +189,7 @@ st| simpleterm,
Se,
Ss,
Tc,
Ms=\E]52;%p1%s;%p2%s\007,
st-256color| simpleterm with 256 colors,
use=st,

1
win.h
View file

@ -27,3 +27,4 @@ void xunloadfonts(void);
void xresize(int, int);
void xselpaste(void);
unsigned long xwinid(void);
void xsetsel(char *, Time);

1
x.c
View file

@ -88,7 +88,6 @@ static void xclear(int, int, int, int);
static void xdrawcursor(void);
static int xgeommasktogravity(int);
static int xloadfont(Font *, FcPattern *);
static void xsetsel(char *, Time);
static void xunloadfont(Font *);
static void expose(XEvent *);