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apply external-pipe-eternal patch 

Makes it work with scrollback.
master
Ryan 2023-09-13 10:40:03 -04:00
parent bf69a28e25
commit bfdd78f62e
Signed by: ryan
GPG Key ID: 7D7E2E94267DAD95
1 changed files with 24 additions and 4 deletions
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28
st.c
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@ -50,6 +50,10 @@
: term.line[(y) - term.scr] \
)
#define TLINE_HIST(y) ( \
(y) <= HISTSIZE-term.row+2 ? term.hist[(y)] : term.line[(y-HISTSIZE+term.row-3)] \
)
#define TLINEABS(y) ( \
(y) < 0 ? term.hist[(term.histi + (y) + 1 + HISTSIZE) % HISTSIZE] : term.line[(y)] \
)
@ -489,6 +493,20 @@ tgetline(char *buf, const Glyph *fgp)
return ptr - buf;
}
int
tlinehistlen(int y)
{
int i = term.col;
if (TLINE_HIST(y)[i - 1].mode & ATTR_WRAP)
return i;
while (i > 0 && TLINE_HIST(y)[i - 1].u == ' ')
--i;
return i;
}
void
selstart(int col, int row, int snap)
{
@ -2268,16 +2286,18 @@ externalpipe(const Arg *arg)
/* ignore sigpipe for now, in case child exists early */
oldsigpipe = signal(SIGPIPE, SIG_IGN);
newline = 0;
for (n = 0; n < term.row; n++) {
bp = term.line[n];
lastpos = MIN(tlinelen(n) + 1, term.col) - 1;
for (n = 0; n <= HISTSIZE + 2; n++) {
bp = TLINE_HIST(n);
lastpos = MIN(tlinehistlen(n) + 1, term.col) - 1;
if (lastpos < 0)
break;
if (lastpos == 0)
continue;
end = &bp[lastpos + 1];
for (; bp < end; ++bp)
if (xwrite(to[1], buf, utf8encode(bp->u, buf)) < 0)
break;
if ((newline = term.line[n][lastpos].mode & ATTR_WRAP))
if ((newline = TLINE_HIST(n)[lastpos].mode & ATTR_WRAP))
continue;
if (xwrite(to[1], "\n", 1) < 0)
break;