tt18.c - plan9port - [fork] Plan 9 from user space
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tt18.c (1055B)
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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 }