tbvprint.c - plan9port - [fork] Plan 9 from user space
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       ---
       tbvprint.c (618B)
       ---
            1 #include "lib9.h"
            2 #include <bio.h>
            3 
            4 static int
            5 fmtBflush(Fmt *f)
            6 {
            7         Biobuf *bp;
            8 
            9         bp = f->farg;
           10         bp->ocount = (char*)f->to - (char*)f->stop;
           11         if(Bflush(bp) < 0)
           12                 return 0;
           13         f->stop = bp->ebuf;
           14         f->to = (char*)f->stop + bp->ocount;
           15         f->start = f->to;
           16         return 1;
           17 }
           18 
           19 int
           20 Bvprint(Biobuf *bp, char *fmt, va_list arg)
           21 {
           22         int n;
           23         Fmt f;
           24 
           25         f.runes = 0;
           26         f.stop = bp->ebuf;
           27         f.start = (char*)f.stop + bp->ocount;
           28         f.to = f.start;
           29         f.flush = fmtBflush;
           30         f.farg = bp;
           31         f.nfmt = 0;
           32         fmtlocaleinit(&f, nil, nil, nil);
           33         n = fmtvprint(&f, fmt, arg);
           34         bp->ocount = (char*)f.to - (char*)f.stop;
           35         if(n == 0)
           36                 n = f.nfmt;
           37         return n;
           38 }