Subversion Repositories planix.SVN

#include <u.h>
#include <libc.h>
#include "fmtdef.h"

/* format the output into f->to and return the number of characters fmted  */

int
dorfmt(Fmt *f, Rune *fmt)
{
        Rune *rt, *rs;
        int r;
        char *t, *s;
        int nfmt;

        nfmt = f->nfmt;
        for(;;){
                if(f->runes){
                        rt = f->to;
                        rs = f->stop;
                        while((r = *fmt++) && r != '%'){
                                FMTRCHAR(f, rt, rs, r);
                        }
                        f->nfmt += rt - (Rune *)f->to;
                        f->to = rt;
                        if(!r)
                                return f->nfmt - nfmt;
                        f->stop = rs;
                }else{
                        t = f->to;
                        s = f->stop;
                        while((r = *fmt++) && r != '%'){
                                FMTRUNE(f, t, f->stop, r);
                        }
                        f->nfmt += t - (char *)f->to;
                        f->to = t;
                        if(!r)
                                return f->nfmt - nfmt;
                        f->stop = s;
                }

                fmt = _fmtdispatch(f, fmt, 1);
                if(fmt == nil)
                        return -1;
        }
}