1 #include "a.h"
2 
3 /*
4  * 18. Insertions from the standard input
5  */
6 void
7 r_rd(int argc, Rune **argv)
8 {
9 	char *s;
10 	Rune *p;
11 	Fmt fmt;
12 	static int didstdin;
13 	static Biobuf bstdin;
14 
15 	/*
16 	 * print prompt, then read until double newline,
17 	 * then run the text just read as though it were
18 	 * a macro body, using the remaining arguments.
19 	 */
20 	if(isatty(0)){
21 		if(argc > 1)
22 			fprint(2, "%S", argv[1]);
23 		else
24 			fprint(2, "%c", 7/*BEL*/);
25 	}
26 
27 	if(!didstdin){
28 		Binit(&bstdin, 0, OREAD);
29 		didstdin = 1;
30 	}
31 	runefmtstrinit(&fmt);
32 	while((s = Brdstr(&bstdin, '\n', 0)) != nil){
33 		if(s[0] == '\n'){
34 			free(s);
35 			break;
36 		}
37 		fmtprint(&fmt, "%s", s);
38 		free(s);
39 	}
40 	p = runefmtstrflush(&fmt);
41 	if(p == nil)
42 		warn("out of memory in %Crd", dot);
43 	ds(L(".rd"), p);
44 	argc--;
45 	argv++;
46 	argv[0] = L(".rd");
47 	runmacro('.', argc, argv);
48 	ds(L(".rd"), nil);
49 }
50 
51 /* terminate exactly as if input had ended */
52 void
53 r_ex(int argc, Rune **argv)
54 {
55 	USED(argc);
56 	USED(argv);
57 
58 	while(popinput())
59 		;
60 }
61 
62 void
63 t18init(void)
64 {
65 	addreq(L("rd"), r_rd, -1);
66 	addreq(L("ex"), r_ex, 0);
67 }