Re: [9fans] rc of Unix

[Kenji Arisawa <arisawa@ar.aichi-u.ac.jp>]

Hello,

I introduced builtin function "read" into Unix rc.

bash$ diff builtins.c builtins.c.orig
30,34d29
< #define RC_READ 1
< #if RC_READ
< static void b_read(char **);
< #endif
<
46,48d40
< #if RC_READ
<       { b_read, "read" },
< #endif
111,136d102
<
< #if RC_READ
< /* read that simulate Plan 9 read -- introduced by Kenar */
< static void b_read(char **av) {
<       char buf[1024];
<       int i = 0;
<       if (*++av != NULL) {
<               set(FALSE);
<               return;
<       }
<       for(;;){
<               if(i == sizeof(buf)){
<                       write(1, buf, i);
<                       i = 0;
<               }
<               if(read(0, &buf[i++], 1) <= 0){
<                       i--;
<                       break;
<               }
<               if(buf[i-1] == '\n')
<                       break;
<       }
<       write(1, buf, i);
<       set(TRUE);
< }
< #endif

where "builtins.c.orig"  is of rc-1.7
I hope that does not introduce a bug ( not  tested enough).

Kenji Arisawa