Subversion Repositories planix.SVN

#include "a.h"

/*
 * 18. Insertions from the standard input
 */
void
r_rd(int argc, Rune **argv)
{
        char buf[100];
        char *s;
        Rune *p;
        Fmt fmt;
        static int didstdin;
        static Biobuf bstdin;
        
        /*
         * print prompt, then read until double newline,
         * then run the text just read as though it were
         * a macro body, using the remaining arguments.
         */
        if(fd2path(0, buf, sizeof buf) >= 0 && strstr(buf, "/dev/cons")){
                if(argc > 1)
                        fprint(2, "%S", argv[1]);
                else
                        fprint(2, "%c", 7/*BEL*/);
        }
        
        if(!didstdin){
                Binit(&bstdin, 0, OREAD);
                didstdin = 1;
        }
        runefmtstrinit(&fmt);
        while((s = Brdstr(&bstdin, '\n', 0)) != nil){
                if(s[0] == '\n'){
                        free(s);
                        break;
                }
                fmtprint(&fmt, "%s", s);
                free(s);
        }
        p = runefmtstrflush(&fmt);
        if(p == nil)
                warn("out of memory in %Crd", dot);
        ds(L(".rd"), p);
        argc--;
        argv++;
        argv[0] = L(".rd");
        runmacro('.', argc, argv);
        ds(L(".rd"), nil);
}

/* terminate exactly as if input had ended */
void
r_ex(int argc, Rune **argv)
{
        USED(argc);
        USED(argv);
        
        while(popinput())
                ;
}

void
t18init(void)
{
        addreq(L("rd"), r_rd, -1);
        addreq(L("ex"), r_ex, 0);
}