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	st-externalpipe-0.8.1.diff (1588B)
	---
	1 diff --git a/st.c b/st.c
	2 index 46c954b..35cd7de 100644
	3 --- a/st.c
	4 +++ b/st.c
	5 @@ -1972,6 +1972,59 @@ tprinter(char *s, size_t len)
	6 }
	7 }
	8
	9 +void
	10 +externalpipe(const Arg *arg)
	11 +{
	12 + int to[2];
	13 + char buf[UTF_SIZ];
	14 + void (*oldsigpipe)(int);
	15 + Glyph bp, end;
	16 + int lastpos, n, newline;
	17 +
	18 + if (pipe(to) == -1)
	19 + return;
	20 +
	21 + switch (fork()) {
	22 + case -1:
	23 + close(to[0]);
	24 + close(to[1]);
	25 + return;
	26 + case 0:
	27 + dup2(to[0], STDIN_FILENO);
	28 + close(to[0]);
	29 + close(to[1]);
	30 + execvp(((char )arg->v)[0], (char )arg->v);
	31 + fprintf(stderr, "st: execvp %s\n", ((char **)arg->v)[0]…
	32 + perror("failed");
	33 + exit(0);
	34 + }
	35 +
	36 + close(to[0]);
	37 + /* ignore sigpipe for now, in case child exists early */
	38 + oldsigpipe = signal(SIGPIPE, SIG_IGN);
	39 + newline = 0;
	40 + for (n = 0; n < term.row; n++) {
	41 + bp = term.line[n];
	42 + lastpos = MIN(tlinelen(n) + 1, term.col) - 1;
	43 + if (lastpos < 0)
	44 + break;
	45 + end = &bp[lastpos + 1];
	46 + for (; bp < end; ++bp)
	47 + if (xwrite(to[1], buf, utf8encode(bp->u, buf)) …
	48 + break;
	49 + if ((newline = term.line[n][lastpos].mode & ATTR_WRAP))
	50 + continue;
	51 + if (xwrite(to[1], "\n", 1) < 0)
	52 + break;
	53 + newline = 0;
	54 + }
	55 + if (newline)
	56 + (void)xwrite(to[1], "\n", 1);
	57 + close(to[1]);
	58 + /* restore */
	59 + signal(SIGPIPE, oldsigpipe);
	60 +}
	61 +
	62 void
	63 iso14755(const Arg *arg)
	64 {
	65 diff --git a/st.h b/st.h
	66 index dac64d8..86cd646 100644
	67 --- a/st.h
	68 +++ b/st.h
	69 @@ -80,6 +80,7 @@ void die(const char *, ...);
	70 void redraw(void);
	71 void draw(void);
	72
	73 +void externalpipe(const Arg *);
	74 void iso14755(const Arg *);
	75 void printscreen(const Arg *);
	76 void printsel(const Arg *);